# Patent

## Title
Automatic ball throwing device, directing device therefor and method of making an automatic ball throwing device

## Abstract

The present invention provides a ball engagement device for use with a ball launching device, comprising a housing having first and second ends, an opening for accepting balls and a ball chamber adjacent to the opening. The device further includes a motor coupled to the housing and a pinion connected to and driven by the motor. The pinion drives a rack that has a ball engagement end, wherein the rack is slideably disposed along an interior portion of the housing. The device also includes a first switch disposed in the housing and that is operably configured to activate the motor to rotate the pinion in a first direction, the first switch is activatable by the presence of a ball in the ball chamber, a second switch disposed in the housing operably configured to rotate the pinion in an opposing second direction, a third switch disposed in the housing at a predetermined distance from the second switch and operably configured to deactivate the motor and a switch activation member disposed along the rack. Upon activation of the first switch, the motor rotates the pinion in the first direction causing the rack to push the ball out of the first end of the housing, the switch activation member travels with the housing until the activation member activates the second switch which then reverses the direction of the pinion in a second direction causing the movement of the rack towards the second end of the housing until the switch activation member strikes the third switch and turns the motor off. This invention further provides a hopper for use with the ball engagement device.

## Background
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part application of application Ser. No. 10/697,913, filed Oct. 29, 2003, which is incorporated, in its entirety, herein by reference.


BACKGROUND OF THE INVENTION
1. Field of Invention
The present invention relates to ball throwing devices.
2. Description of Related Art
Coaches and players have used conventional ball throwing devices for years to assist in training for various sports, such as baseball and tennis. A number of such devices are described in for example, U.S. Pat. No. 6,237,583 issued to Ripley et al.; U.S. Pat. No. 5,125,653 issued to Kovács et al., and U.S. Pat. No. 6,026,798 issued to Sanders et al. However, these conventional ball throwing devices have numerous drawbacks and shortcomings.
SUMMARY OF INVENTION
It is an object of the present invention to overcome the drawbacks and shortcomings of conventional ball throwing devices. Particularly, conventional ball throwing devices do not provide an efficient way to adjust the flight direction of a ball thrown by a ball launching device. Prior devices and methods have also failed to provide an efficient method for modifying a conventional ball throwing device, (e.g., pitching machine), into an automatic ball throwing device that can automatically adjust the flight direction of a ball. Further, many conventional devices are limited to a narrow range of ball rotation and/or do not provide for a continuous range of ball rotation through 90 degrees (i.e. from a side spin about a horizontal axis of the ball through 90 degrees to a substantially forward or back spin about a vertical axis of the ball). For example, many conventional devices can be used for advanced baseball pitching practice by providing ball rotation about a horizontal axis. This type of rotation is often not desired for baseball infield practice. By not providing a continuous range of spin options, conventional devices do not provide realistic ball movements.
The present invention provides an automatic ball throwing device that can repeatedly and accurately throw balls to a specific target or zone, throw ground balls, and launch balls through the air to various vertical and horizontal directions. The present invention allows a ball to be automatically thrown through a continuous range of ball (i.e. from a side spin about a horizontal axis of the ball through 90 degrees to a substantially forward or back spin about a vertical axis of the ball). Such a device can be used, among other things, to assist baseball players in improving their defensive and offensive skills.
The present invention is more practical and convenient than conventional ball throwing machines, because the ball throwing device of the present invention can, among other things, be utilized by a single person remote from the machine. That person can be the person practicing or a coach assisting a player. Whereas, conventional devices require an operator to be with the machine in order to control the device and throw balls in addition to the aforementioned player or coach.
Further, an embodiment of the ball throwing device of the present invention allows the device to be easily handled and moved by one person. In this way, a single coach can easily and readily move the device around the field for different applications, such as for batting and defensive practice.
Many conventional devices lack the ability to supply an adequate volume of balls to a ball launching device. For example, many conventional ball hoppers or feeders only supply a dozen or so balls. This is inefficient as a user will need to be constantly refilling the conventional hopper. The present invention provides an efficient means for maintaining an adequate bank of balls to be readily supplied to a ball launching device. This means includes a means for preventing clogging of the balls.
Many conventional pitching machines are limited in their versatility. Particularly the devices are primarily used for batting (offensive) practice. Further, altering the orientation of many conventional pitching machines is often cumbersome and it is difficult to readily attain a desired orientation. The present invention overcomes these deficiencies by providing a ball throwing device that can readily be used for offensive or defensive baseball/softball practice; (it is often desired to be able to throw a ball with not only substantially no-spin, forward spin or backward spin, but also to be able to throw a ball with side spin for defensive practice). Further, the present invention allows the orientation of the device to be readily achieved by providing automatic control of a ball directing device made in accordance with the present invention.
The present invention also provides a method for converting a conventional pitching machine to an automatic ball throwing device of the present invention.
More specifically, the present invention provides a directing device for controlling the orientation of a ball launching device, comprising a first member; a second member pivotally attached to the first member; a third member disposed substantially parallel to the second member, rotatably connected to the second member and operably configured to receive the ball launching device; a first actuator connected to the first and second members; and, a second actuator connected to the first and third members, wherein when the first actuator is actuated the second member pivots relative to the first member, and when the second actuator is actuated the third member rotates relative to the second member.
The present invention further provides an automatic ball throwing device comprising a directing device having a first member, a second member pivotally attached to the first member, a third member disposed substantially parallel to the second member and rotatably connected to the second member, a first actuator connected to the first and second members and a second actuator connected to the first and third members; and, a ball launching device connected to the third member, wherein orientation of the ball launching device is controlled by actuation of the first and second actuators such that when the first actuator is actuated the second member pivots relative to the first member and when the second actuator is actuated the third member rotates relative to the second member.
The present invention also provides a ball hopper, comprising a bin having an opening; a delivery portion having a ball channel, the delivery portion is attachable to a ball launching device; a chute having a first and second end, the first end is in communication with the opening of the bin and the second end is in communication with the ball channel; a ball gate disposed along the length of the chute; and a ball pushing member disposed adjacent the ball channel, wherein activation of the ball gate allows a ball from the bin to travel through the chute into the ball channel of the delivery portion and activation of the ball pushing member moves the ball out of the ball channel to the ball launching device.
A method for making an automatic ball throwing device, comprising: obtaining a pitching machine having a ball launching device and a support stand; removing the ball launching device from the support stand; attaching a directing device to the support stand, wherein the directing device includes a first member attachable to the support stand, a second member pivotally attached to the first member, a third member disposed substantially parallel to the second member and rotatably connected to the second member, a first actuator connected to the first and second members, and a second actuator connected to the first and third members; and attaching the ball launching device to the third member of the directing device.
These and other features and advantages of this invention are described in, or are apparent from, the following detailed description of various exemplary embodiments of the devices and methods according to this invention.



BRIEF DESCRIPTION OF FIGURES
Various exemplary embodiments of this invention will be described in detail, with reference to the following figures, wherein:
FIG. 1 is a front perspective view of an automatic ball throwing device according to this invention;
FIG. 2 is a side view of the automatic ball throwing device of FIG. 1 shown in a different operational position;
FIG. 3 is another side view similar to FIG. 2, wherein the device is shown in a different operational position;
FIG. 4 is another front perspective view of the automatic ball throwing device of FIG. 1, shown in another operational position;
FIG. 5 is another front perspective view of the automatic ball throwing device of FIG. 1, shown in yet another operational position;
FIG. 6 is a side perspective view of a ball directing device according to the present invention;
FIG. 7 is another side perspective view of the ball directing device of FIG. 6, shown in another operational position;
FIG. 8 is a cross-sectional view of a portion of the ball directing device of FIG. 6;
FIG. 9 is a front perspective view of a portion of the ball directing device of FIG. 6, shown with a ball launching device;
FIG. 10 is another front perspective view of a portion of the ball directing device of FIG. 6, shown in another operational position with a ball launching device;
FIG. 11 is an exploded side perspective view of the ball launching device, the ball directing devices and the support stand of FIG. 1;
FIG. 12 is a partial side cross-sectional view of the hopper of FIG. 1;
FIG. 13 is a top view of the hopper of FIG. 12;
FIG. 14 is a side perspective view of a prior art ball throwing device;
FIG. 15 is an exploded side perspective view of a ball directing device made in accordance with this invention, shown with the support stand of the prior art ball throwing device of FIG. 14;
FIG. 16 is an exploded side perspective view of a hopper, made in accordance with this invention, with the prior art ball launching device of FIG. 14 and the ball directing device of FIG. 15;
FIG. 17 is an exploded side perspective view of an alternative embodiment of a ball directing device made in accordance with this invention;
FIG. 18 is an exploded opposing side perspective view of the ball directing device of FIG. 17, shown in a different operational position;
FIG. 19 is an exploded side perspective view of an alternative embodiment of a hopper made in accordance with this invention, shown with a ball launching device and the ball directing device of FIG. 17;
FIG. 20 is a perspective broken view of an alternative embodiment of a ball engagement device made in accordance with this invention;
FIG. 21 is a cross-sectional view of the ball engagement device taken along line 21—21 of FIG. 20;
FIG. 22 is a partial cross-sectional top view of the ball engagement device of FIG. 20;
FIG. 23 is a partial cross-sectional side view of the ball engagement device of FIG. 22;
FIG. 24 is a cross-sectional view of the ball engagement device of FIG. 22 showing a rack in a position wherein a switch activation member activates a second switch;
FIG. 25 is another cross-sectional view of the ball engagement device of FIG. 22 showing the rack in a position wherein the switch activation member traveling between the second switch and a third switch;
FIG. 26 is yet another cross-sectional view of the ball engagement device of FIG. 22 showing the rack in a position wherein the switch activation member is adjacent the third switch;
FIG. 27 is a cross-sectional view of an alternative embodiment of a hopper made in accordance with this invention; and,
FIG. 28 is a cross-sectional view taken along Line 28—28 of FIG. 27.



DETAILED DESCRIPTION OF INVENTION
FIG. 1 shows an exemplary embodiment of an automatic ball throwing device 10 in accordance with this invention. The automatic ball throwing device 10 includes a ball directing device 100, a ball launching device 200, a support stand 300, a ball hopper 400, and a controller 500. It should be appreciated that the ball hopper 400 is optional.
The ball directing device 100 is attached to the support stand 300. The ball launching device 200 is attached to the ball directing device 100. The ball directing device 100 is operably configured to orient (i.e. rotate and/or pitch) the ball launching device 200, as will be described further below. The controller 500 is electrically connected to the ball directing device 100 and controls the aforementioned rotation and pitch of the ball launching device 200. The ball hopper 400 is attached to the ball directing device 100 and the ball launching device 200. The hopper 400 is configured to retain balls and to provide a conduit to guide balls within the hopper 400 to the ball launching device 200. The controller 500 is electrically connected to the hopper 400 and controls the delivery of balls from the hopper 400 to the ball launching device 200.
Controller 500 includes a power box 502 and a switching device 504. The controller includes a power cord 506. The power cord 506 plugs into a conventional power supply source. The power box 102 provides the electrical power from the power supply to the various components of the device 10. The switching device 504 is electrically connected to the power box 502. The switching device is operably configured to control the electrical signals to the various electrical components of the device 10, as will be described further below. It should be appreciated that the switching device 504 may communicate with the power box 502 via a direct communication link, a radio frequency (i.e. remote control), infra-red, or any other now-known or later developed communication link.
FIG. 2 shows the device 10 with the ball launching device 200 slightly pitched down relative to a horizontal plane 12, which is parallel to a surface, not shown, on which the device 10 is resting. The relative pitch position of the ball launching device 200, as shown in FIG. 2, is purely an example of one of the many relative pitch positions or attitudes that may be obtained with the present invention. With the particular pitch attitude shown in FIG. 2, the device 10 would, at the user's selective option, eject a ball directed toward the surface or ground, i.e., a ground ball.
FIG. 3 shows the device 10 with a different exemplary pitch attitude. Particularly, the ball launching device 200 is pitched up relative to the horizontal plane 12. With this pitch attitude, the device 10 would, at the user's selective option, eject a ball directed into the air at an angle away from the surface or ground, i.e., a fly ball.
FIGS. 4 and 5 show a front perspective view of the device 10. The hopper 400 is not shown in FIGS. 4 and 5 for purposes of clarity. FIG. 4 shows the ball launching device 200 slightly pitched up relative to the horizontal plane 12, not shown in FIG. 4. FIG. 5 shows the ball launching device 200 slightly pitched up relative to the horizontal plane 12, similar to the pitch attitude shown in FIG. 4, and slightly rotated about a central axis 14 of the device 10. If, for example, the device 10, with the pitch and rotational attitude displayed in FIG. 5, was placed at or near home plate on a baseball diamond, the device would throw a line-drive or a fly ball towards the right side of the field with the pitch and rotational attitude displayed in FIG. 5.
FIGS. 6 and 7 show a top perspective view of the ball directing device 100. The ball directing device 100 allows the user to selectively orient the ball launching device 200. The ball directing device 100 includes a support member 102, a tilt member 104, a rotatable member 106, a first actuator assembly 108 and a second actuator assembly 110.
In this exemplary embodiment, the support member 102 has generally a plate-like shape. It is preferred that a rear portion 112 of the support member 102 include a substantially straight edge. It is further preferred that the sides of the support member 102 are rounded, but a front portion 113 (shown in FIG. 8) includes a straight edge. It should be appreciated that the support member 102 could be made in any number of shapes, depending on the manufacturers design choice. For example, the support member could be the shape of an ellipse, a rectangle or a square, etc.
FIG. 8 is a cross-sectional view of a portion of the ball directing device 100. As seen in this Figure, the support member 102 has a top side 114 and a bottom side 116. The support member 102 includes an attachment member 118. The attachment member 118 is disposed on the bottom side 116 of the support member 102. In this embodiment, the attachment member 118 is a shaft. The attachment member 118 is operably configured to attach to the support stand 300, (not shown in FIG. 8), as will be described further below. It should be appreciated that the attachment member can be any of a number of forms other than a shaft so long as it provides for attachment to the support stand 300.
The attachment member 118 is preferred to be extended from the bottom surface 116 of the support member 102 at 90°. However, it should be appreciated that in other exemplary embodiments, the angle can be any desired angle for the particular application.
FIGS. 9 and 10, display a bottom rear perspective of a portion of the ball directing device 100 and the ball launching device 200. For purposes of clarity, the controller 500 is not shown in the FIGS. 9 and 10. In FIG. 9, the ball directing device 200 is positioned such that the ball launching device 200 is facing directly toward the front of the device 10. In FIG. 10, the rotatable member 106 of the ball directing device 100 is shown rotated such that the ball launching device 200 is facing toward the front left of the device 10. As shown in FIGS. 9 and 10, the support member 102 further includes stops (protrusions) 120. The stops 120 extend from the support member 102. Preferably, the stops are in substantially the same plane as the support member 102. The stops 120 are adapted to limit the rotation of the rotatable member 106. Particularly, as will be discussed further below, the rotatable member 106 is prohibited from further rotation when an attachment member 194 comes into contact with either of the stops 120. In this embodiment, the stops 120 are disposed along the rear portion 112 of the outer periphery of the support member 102. Preferably, the protrusions are disposed apart to provide at least 110 degrees of rotational movement of the rotatable member 106. 110 degrees will enable a user to utilize an entire baseball field including foul territory. It should be appreciated that the stops could be arranged in a different position on the periphery on other embodiments to change the degrees of freedom. It should also be appreciated that the stops 120 are optional.
Referring again to FIGS. 6, 7, 8 and 9, the tilt member 104 is shown having generally a plate-like shape. It should be appreciated that the tilt member 104 could be made in any number of shapes. For example, it could be a box-like member or have a generally rectangular shape. In addition, it should be appreciated that in other embodiments the shape of the tilt member 104 may be different than the shape of the support member 102.
The tilt member 104 has a top side 122 and a bottom side 124. The tilt member 104 is pivotally attached to the support member 102. Preferably, the bottom side 124 is attached via a link member 126, to the top side 114 of the support member 102. It is preferred that the link member 126 be at least one hinge. It should be appreciated that any link member allowing angular movement of the tilt member through about 70–95°, preferably 75–95°, more preferably through about 80–90°, and most preferably through 90° relative to the support member would be sufficient to practice the invention. The link member 126 is disposed adjacent a first periphery portion 128 of the tilt member 104 and toward rear portion 112 of the support member 102.
Referring again to FIGS. 6, 7, 8 and 9, the rotatable member 106 is shown having a generally plate-like shape. It should be appreciated that the rotatable member 106 could be made in any number of shapes. For example, it could be a box-like member or have a generally rectangular shape. The rotatable member 106 may have a shape that is different from the shapes of the tilt member 104 and/or the rotatable member 106.
The rotatable member 106 is disposed substantially parallel to the tilt member 104. The rotatable member 106 has a top side 130 and a bottom side 132. The rotatable member 106 is rotatably attached to the tilt member 104. The rotatable member 106 includes a mounting hole 134, as shown in FIG. 8. The mounting hole 134 is preferred to be coaxial with an axis of rotation 136. A shaft 138 extends from about the top side 122 of the tilt member 104 along the axis 136 through the hole 134. A washer 140 and a cotter pin 142 are disposed around and through, respectively, the shaft 138 in a traditional fashion to rotatably attach the rotatable member 106 to the tilt member 104. The shaft 138 is welded to the top side 122 of the tilt member 104. It should be appreciated that any fastener that enables the rotatable member 106 to rotate relative to the tilt member 104 would be sufficient to practice the invention.
A spacer (or bearing member) 144, shown in hidden lines in FIGS. 6 and 7, is disposed between the rotatable member 106 and the tilt member 104. The spacer 144 is disposed about the shaft 138. The spacer 144 is adapted to facilitate the movement of the rotatable member 106 relative to the tilt member 104. The spacer 144 is preferably made of acrylic. The spacer 144 preferably has a generally plate-like shape. The spacer 144 includes a plurality of orifices 146. The orifices 146 are disposed at various radial lengths and distributed about the spacer 144. It is preferred, but not necessary, that the spacer 144 have a plurality of arms or legs; one for each of the orifices, as shown in FIGS. 6 and 7. The orifices 146 are operably configured to retain ball bearings 148 between the tilt member 104 and rotatable member 106. The spacer 144 has a thickness that is less than the diameter of the ball bearings 148. The ball bearings 148 are disposed in the spacer 132 such that they rotate freely when the rotatable member 106 is rotated. The ball bearings 148 contact the top side 122 of the tilt member 104 and the bottom side 132 of the rotatable member 106 so as to facilitate rotation of the rotatable member 106.
It should be appreciated that there are numerous other ways to allow for rotation of the rotatable member 106 relative to the tilt member 104. For example, grease or some other lubricant may be placed between the plates, or the plates may be made or coated with a low-friction material, such as Teflon, that facilitates rotation. Alternatively, a Teflon spacer without ball bearings could be inserted between the tilt and rotatable members.
As shown in FIGS. 6 and 7, the rotatable member 106 also preferably includes a mounting bracket 150. The mounting bracket 150 is fixed to the top side 130 of the rotatable member 106. The mounting bracket 150 includes a ball launching attachment portion 152 and a hopper attachment portion 154. It should be appreciated that the attachment portions 152 and 154 may be separated and separately attached to the rotatable member 106.
The ball launching attachment portion 152 includes a guide 156, a catch member 158, and a hold-down member 160. The guide 156 preferably has a shape that is configured to receive a mounting frame, not shown in FIGS. 6 and 7, of the ball launching device 200. Preferably, the guide 156 has a generally U-shape in the plane of the rotatable member 106. However, it should be appreciated that in other various exemplary embodiments, the guide can be other shapes so as to engage the shape of the mounting frame of the particular ball launching device being utilized.
The catch member 158 is disposed so as to be spaced from the guide 156 such that a portion of the frame of the ball launching device, not shown, will be disposed between the guide 156 and the catch member 158 when the ball launching device is attached. The catch member 158 is operably configured to assist in preventing the ball launching device 200 from sliding backward away from or out of the U-shaped guide 156.
The hold-down member 160 is preferably a bar. The hold-down member 160 includes an orifice 162 at both ends thereof. The hold-down member 160 is attachable to the rotatable member 106 by threaded bolts 164 disposed in the orifices 162. The bolts 164 engage threaded receptacles 166 disposed on the top side 130 of the rotatable member 106. The hold-down member 160 is operably configured to be disposed over a portion of the ball launching device 200 to hold the device 200 to the rotatable member 106.
The hopper attachment portion 154 of the mounting bracket 150 includes rods 168. The rods 168 are operably configured to be inserted in support members of the hopper 400 as will be discussed further below.
Referring again to FIG. 5, the first actuator assembly 108 is shown including an actuator 170. The actuator 170 is connected to the tilt member 104 and the support member 102. The actuator 170 is operably configured such that when it is actuated, i.e. extended or retracted in its length, the tilt member 104 will move relative to the support member 102. The actuator 170 is preferably an electro-hydraulic actuator. The actuator 170 has a shaft 172, a housing 174 and a motor 176. The housing 174 is adapted to house the shaft 172, such that the shaft 172 is able to move in and out of the housing 174. The shaft 172 has a first end 173. The first end 173 is attached to the tilt member 104. Preferably, the first end 173 is pivotally attached to the tilt member 104. The first end 173 is attached to a second periphery portion 178 of the tilt member 104. Preferably, the second periphery portion 178 is substantially diametrically opposed to the first periphery portion 128, as shown in FIG. 8.
The motor 176 is an electric motor operably configured to selectively extend or retract the shaft 172 in to and out of the housing 174.
The first actuator assembly 108 also includes a bracket 179. The housing 174 is attached to the support member 102 via the bracket 179. The bracket 179 preferably includes supports 180 and cross supports 181 and 182, as shown in FIG. 5. The supports 180 are preferably disposed in a parallel relationship. The supports 180 are disposed parallel to the housing 174. Each support 180 has a first and second end 183 and 184, respectively. The first ends 183 of the supports 180 are pivotally attached to the support member 102. The first ends 183 are preferably attached to the front 113 portion on the outer periphery of the support member 102. The front portion 113 is substantially diametrically opposed to the rear portion 112. The housing 174 is pivotally attached to the supports 180 via bolts 163. The bolts 163 extend from the supports 180 into holes 165 in the housing 174, as shown in FIGS. 5 and 6. The cross supports 181 and 182 are disposed substantially perpendicular to the supports 180. The cross supports 181 and 182 hold the actuator 170. To hold the actuator 170, the cross support 181 is disposed behind the actuator 170 and the cross support 182 is disposed in front of the actuator 170. In operation, the actuator 170 pivots at the connection with the bolts 163, and as the shaft 172 is extended the housing 174 presses against the cross support 181 so as to pivot the entire actuator assembly 108 at the first ends 183 of the supports 180.
It should be appreciated that any actuator attached to the support member 102 and to the tilt member 104 and adapted to lift and hold the tilt member 104, the ball launching device 200, and the hopper 400 relative to the support member 102, as described above, would be sufficient to practice the present invention. An off the shelf linear actuator that was used in an actual reduction to practice for the first actuator assembly is one made by Warner, model no. P24-05B5-18RD.
Referring again to FIGS. 9 and 10, the second actuator assembly 110 includes an actuator 185 and linkage 186. A fixed end 187 of the actuator 185 is attached to the support member 102. Preferably, the fixed end 187 is attached to the support member 102 via a bracket. Further, it is preferable that the fixed end 187 is attached in such a manner so that the actuator 185 can move or pivot slightly when the actuator is actuated. The pivot movement is preferably in a plane that includes the longitudinal axis of the actuator 185. An extendable end 188 of the actuator 185 is attached to the linkage 186. The extendable end 188 is operably configured to extend away from and retract towards the fixed end 187 based on the selection of an operator. Preferably, the actuator 185 is an electro-hydraulic linear actuator that includes a housing 189, an extendable member 190 and a motor 191. An off the shelf actuator that was used in an actual reduction to practice for the first actuator assembly is a linear actuator made by Warner, model no. DE24-17W44-08NPMHN. It should be appreciated that any variety of other actuators may be used for actuator 185.
The extendable member 190, in a non-actuated state, resides substantially within the housing 189. When actuated by the motor 191, the extendable member 190 extends from and in to the housing 189. The extendable end 188, which is the free end of the extendable member 190, is attached to the linkage 186. FIG. 10 shows the extendable member 190 more extended from the housing 190 than in the FIG. 9. When the extendable member 190 extends from the housing 189, the rotatable member 106 will rotate counter-clockwise and visa versa when the extendable member 190 is retracted.
The linkage includes a pivot member 192, an intermediate member 193, and an attachment member 194. The pivot member 192 has a pivot end 195 and a second end 196. The pivot end 195 is attached to the support member 102. Preferably, the pivot end 195 is attached to a portion of the periphery of the support member 102. Preferably, the pivot member 192 has the general shape of a bar having a larger dimension in its width than its thickness. In this exemplary embodiment, the pivot member 192 is twisted along its length. The twisting facilitates the attachment of the pivot member 192 to the extendable end 188 of the actuator 185 and the intermediate member 193, as shown in FIG. 9. It is preferable that the pivot member 192 be twisted approximately 180 degrees along its length, as shown in FIG. 9. The extendable end 188 is pivotally attached to the pivot member 192, preferably near the midpoint along the length of the pivot member 192. When the actuator 185 is actuated to extend and retract the extendable end 188, the pivot member 192 will pivot about the pivot end 195.
The intermediate member 193 has a first end 197 and a second end 198. The first end 197 is attached to the second end 196 of the pivot member 192. The first end 197 is attached to the second end 196 of the pivot member 192, such that the intermediate member 193 pivots about the second end 196 when the pivot member 192 is actuated by the actuator 185. A universal joint 199 is attached to the second end 198 of the intermediate member. The universal joint 199 is attached to the attachment member 194. The universal joint 199 engages a threaded shaft attached to the second end 198, as shown. The attachment member 194 is attached to the rotatable member 106. Preferably, the attachment member 194 is attached to a rear periphery portion 107 of the rotatable member 106. The universal joint 199 is attached to the attachment member 194 with a nut as shown. However, it should be appreciated that the universal joint 199 could be removably attached to the attachment member in a variety of ways. For example, a rod and a pin could be used.
The universal joint 199 allows for multi-directional relative movement of the intermediate member 193 relative to the attachment member 194. When the actuator 185 is actuated to extend or retract the extendable end 188, the intermediate member 193 will move in substantially the same plane as the actuator 185. Further, the intermediate member 193 will pivot about the second end 197 of the pivot member 192 and will move the attachment member 194 so as to rotate the rotatable member 106.
The universal joint 199 has enough degrees of freedom of movement to be able to swivel in multiple directions such that when the actuator assembly 108 is actuated to tilt the tilt member 104 and the rotatable member 106 relative to the support member 102, the second actuator assembly 110 will still be operable to rotate the rotatable member 106.
The rotational movement of the rotatable member 106 is preferably limited by the stops 120, as described above. Particularly, the rotation of the rotatable member 106 is limited when the attachment member 194 comes into contact with either of the stops 120. The actuator 189 is preferred to include an internal clutch so that the actuator will not burn-out when the rotation of the rotational member 106 is stopped by the stops 120.
With the above configuration, the second actuator assembly 110 is operably configured such that actuation of the actuator 185 causes panning of the rotatable member 104. The second actuator assembly 110 is adapted to pan the rotatable member 106 through the desired amount of rotation. Preferably, the rotation is through at least 110°. In other embodiments it is preferably to rotate through at least 120°, 100°, 90°, 80°, 70° or 60° in either direction.
The actuators 174 and 189 of the first and second actuator assemblies 108 and 110, respectively, are controlled by links 167, as shown in FIG. 5. Links 167 provide electrical connections to the controller 500, such that a user can control the respective actuators. It should be appreciated that the links 167 can be any known or later developed device or system connecting the respective devices to the controller 500, including a direct cable connection, a radio frequency communication connection, infra-red, etc. Further, it should be appreciated that the control signals do not need to be sent along the links in the same manner that the power is sent. For example, the power can be sent via a direct cable connection and the control signal can be via a radio frequency.
FIG. 11 is a perspective view of the ball launching device 200, device controller 500 and the ball directing device 100. The ball launching device 200 generally includes a frame 202, as shown in FIG. 5, a handle 204, two wheels 206, 208, a feed tube 210, two motors 212, 214, and a controller 216.
The ball launching device also includes an attachment rod 218, which is attached to the frame 202. The attachment rod 218 is optional and is for use with a standard or conventional tripod assembly, when the ball directing device 100 is not used as is discussed further below in connection with the prior art device. It should be appreciated that the attachment rod 218 is optional. In general, the attachment rod will only be present when the ball launching device is taken from an existing, conventional pitching machine wherein the launching device is designed to be attached to a conventional tripod. The ball launching device of the present invention can be, in various exemplary embodiments, the ball launching device of a pitching machine manufactured and sold by Jugs of Tualitin, Oreg., (e.g., model numbers M1000 and M1300, Combination Pitching Machines, www.thejugscompany.com, which are incorporated herein by reference in their entireties). It should be appreciated that different types of ball launching devices, i.e. pitching machines, etc., may be utilized in other various exemplary embodiments of the present invention. For example, it may be practiced with a ball launching device, such as the ATEC, model name Casey. Further, it is understood that a single wheel ball launching device can be utilized as the ball launching device of the present invention.
The frame 202 is attached to the rotatable member 106, as will be described further below. The feed tube 210 is attached to the top side of the frame 202. The feed tube is disposed adjacent to and between the wheels 206 and 208. The feed tube 210 has a first end 220 and a second end 222. The tube has a diameter such that a ball, not shown, of a desired type e.g., a baseball, softball, tennis ball, etc., can travel through the tube 210. The first end 220 is adapted to receive the ball. Preferably, the ball is fed to the feed tube 210 from the ball hopper 400, not shown in FIG. 11, as will be discussed further below. The second end 222 is adapted to deliver the ball to a position so that the ball will come into contact with the wheels 206 and 208 and the ball will be launched or ejected by the rotation of the wheels 206 and 208, as is commonly understood.
The wheels 206, 208 are rotatably attached to the frame 202. Preferably, the axes of the wheels 206 and 208 are substantially perpendicular to the plane of the rotatable member 106. The wheels 206 and 208 are driven by motors 250 and 260, respectively. Motors 250 and 260 are preferably electric motors. Motors 250 and 260 are preferably electrically connected to controller 216. Controller 216 is attached to the frame 202. Controller 216 controls the rotational speed of the motors 250 and 260 and hence the wheels 206 and 208. The controller 216 in other various exemplary embodiments is electrically linked to the controller 500 so the user can control the ball launching device from the controller 500.
The ball launching device 200 is attached to the top side 130 of the rotatable member 106. The frame 202 has a shape that is configured to engage the guide 156 of the ball launching attachment portion 152 of the mounting bracket 150 as discussed above. The hold-down member 160 is disposed over the frame 202, as shown in FIG. 11. The hold-down member 160 attaches the ball launching device 200 to the rotatable member 106.
It should be appreciated that in other various exemplary embodiments, the ball launching device 200 is attached to the rotatable member 106 permanently, such as through welding, etc.
Referring again to FIGS. 1 through 4, the support stand 300 is shown. The support stand 300 includes a mounting support 302 and a plurality of legs. In this exemplary embodiment, there are three legs, 304, 306, 308. Preferably, the support stand 300 further includes wheels 310, 312, 314, 316 and a handle 318.
The mounting support 302 has a first end 320 and a second end 322, as shown in FIG. 2. The first end 320 is preferably hollow. The first end 320 is adapted to receive the attachment member 118 of the directional device 100. The second end 322 is preferably hollow. The second end 322 is adapted to receive the legs 304, 306, and 308.
The legs 304, 306 and 308, shown in FIG. 2, are attached to the second end 322 of the mounting support 302. A securing member 324 engages, preferably by threads, not shown, the second end 322. The securing member 324 secures the legs 304, 306 and 308 by wedging them against the interior wall of the mounting support 302. The securing member 324 secures the legs 304, 306, and 308 to the mounting support 302. The securing member 324 engages the second end 322 similar to conventional tripods for conventional pitching machines.
The legs 306 and 308 are preferably generally disposed on either side of the first actuator assembly 108, as shown in FIG. 4. The leg 304 opposes the legs 306 and 308 so as to provide stable support for the device 10. At ends opposite the ends that engage the second end 322 of the mounting support 310, the legs 304, 306 and 308 are each connected to at least one wheel. In this exemplary embodiment, the legs 304, 306 and 308 engage axle housings 326, 328 and 330, respectively. Wheels 310 and 312 are rotatably attached to the axle housing 326 via axles 332 and 334. Preferably, the wheels 310 and 312 are disposed on opposite sides of the axle housing 326. The wheel 314 is rotatably attached to the axle housing 328 via an axle 336. The wheel 316 is rotatably attached to the axle housing 330 via an axle 338.
As shown in FIG. 1, each axle housing 326, 328, and 330 includes a sleeve 340 adapted to receive the legs 304, 306 and 308. The weight of the device holds the respective legs in the corresponding sleeves. However, it should be appreciated that in other alternative embodiments, each sleeve can include a hole adapted to receive a fastener to secure the legs in the sleeves.
As shown in FIG. 4, a cross support 342 extends between the axle housings 328 and 330. Preferably, each of the axle housings 328 and 330 has an interior open end to receive opposite ends of the cross support 342. The cross support is secured by threaded pins 344.
A user will use the handle 318 to move the device 10 around. The handle 318 is pivotally attached to the axle housing 326. When not in use, the handle 318 is pivoted up and temporarily secured to the leg 304. Note, for clarity purposes, the leg 308 is broken along its length and the cross support 342, wheel 316 and axle housing 330 are not shown in FIGS. 2 and 3.
FIGS. 12 and 13 display the ball hopper 400. FIG. 12 displays a partial cross-sectional view of the ball hopper 400 and FIG. 13 displays a top view of the ball hopper 400. Note, only the ball hopper 400 is shown in cross-section in FIG. 12. The ball hopper 400 includes a bin 402, a chute 404, and an engagement (or delivery) portion 406. The hopper 400 further includes two support legs 408 and 410, (shown in FIG. 1). Cross supports 466 and 468 are disposed between and connected to the legs 408 and 410. The cross support members assist in stabilizing the hopper 400. It should be appreciated that in other various exemplary embodiments, there can be more, less or no cross support members and further that the support legs can be combined into one member. In various exemplary embodiments, the hopper further includes a lid 411, as shown in FIG. 12 (not shown in FIG. 13). The lid 411 is attached to the bin 402 via a hinge 413.
Each of the support legs 408 and 410 is attached at one end, an attachment end 462, to the bin 402. The opposite end of each of the support legs 408 and 410 is attached to the rods 168 of the hopper attachment portion 154 of the ball directing device 100, discussed above. The attachment end 462 of each of the support legs 408 and 410 extends through holes 460 disposed in the bottom of the bin 402, as shown in the broken away portion of FIG. 13. Each of the attachment ends 462 are preferably flattened or crimped. Fasteners 464 attach the attachment ends 462 to the bin 402. The fasteners 464 are preferably bolts.
The engagement portion 406 is substantially hollow and has an interior ball channel 407. The engagement portion 406 includes a first end 412 and a second end 414. The first end 412 of the engagement portion 406 is attached to the first end 220 of the feed tube 210 of the ball launching device 200. The first end 412 is operably adapted to receive the first end 220 of the feed tube 210. The engagement portion 406 is secured to the feed tube via a screw 224 that extends through a partial slot 416 in the wall of the first end 412 and engages an exterior wall of the feed tube 210. A slide prevention bracket 417 (shown in FIGS. 1 and 2), is disposed between the head of the screw 224 and the exterior wall of the first end 412. The bracket 417 includes a partial slot 421 and orifices 418. The screw 224 extends through the slot 421. Protrusions 419 are disposed on the first end 412. Protrusions engage orifice 418 to hold the bracket 417. The bracket is operably configured to prevent the hopper 400 from slipping off the ball launching device 200.
The engagement portion 406 further includes a ball pushing member 420, as shown in FIGS. 12 and 13. The ball pushing member 420 includes solenoids 422, each have a shaft 424, which are connected together by an engagement bar 426. The springs 428 are attached to the bar 426 and the engagement portion 406. The solenoids 422 are supported by bracketing 430, which is secured to an interior wall of the engagement portion 406. The bracketing 430 is positioned such that the bar 424 is aligned with a ball 15 (shown in phantom), resting in the ball channel 407 of the engagement portion 406. The shafts 424 and the engagement bar 426 are driven by the solenoids 422. When the solenoids 422 are activated by the user, the solenoids 422 will cause the shaft to translate and the bar 426 will push the ball 15 along the ball channel 407, through the engagement portion, and into the first end 220 of the feed tube 210. When the solenoids 422 are deactivated, the springs 428 will force the shafts 424 and the bar 426 to return to their initial position (ready to push another ball).
The bin 402 is generally box-like in shape. The bottom interior surface 432 of the bin 402 is angled to urge or funnel the balls to an opening 434. The opening 434 is adapted to allow balls to exit the bin 402. The bin 402 is adapted to store dozens of pre-launch balls. Preferably, the bin 402 is of a sufficient volume to store at least 100 baseballs, for example. In one exemplary reduction to practice, wherein the bin is capable of storing at least 100 baseballs, the bin has a depth of about 20 inches.
The bin 402 also includes an auger 436 with a motor 438. The auger 436 is disposed adjacent the bottom interior surface 432. The auger 436 is aligned so as to encourage the flow and/or dislodge the balls as the balls move toward the opening 434.
The bin 402 also includes a shelf 440. The shelf 440 is disposed above the bottom interior surface 432. The shelf 440 is disposed above the bottom interior surface 432 at a height that is greater than the diameter of a ball to be placed in the bin 402. The shelf 440 is configured to be disposed above the opening 434. The shelf 440 supports the weight of some of the balls in the bin 402 so as to assist in preventing clogging of the balls at the opening 434. The shelf is attached along at least one edge to a side wall of the bin 402. The shelf is supported by supports 442. Supports 442 extend from the bottom interior surface 432 to the shelf 440. The shelf 440 is preferably transparent, such that a user can visually see the opening 434 when looking in the bin 402.
The chute 404 has a first end 444 and a second end 446. The first end 444 is attached to the opening 434. The second end 446 is attached to an opening 448 in the engagement portion 406. The opening 448 is of a sufficient diameter to allow a ball to pass into the engagement portion. The opening 448 is preferably disposed such that when a ball passes, the ball will land adjacent to the bar 426 when the solenoids 422 are in a non-actuated state. In this exemplary embodiment, the chute 404 is shown to be integral with the engagement portion 406 and integral with the bin 402. However, it should be appreciated that the chute, in other various exemplary embodiments, not shown, is not integral with the engagement portion and/or the bin.
The chute 404 also includes a ball flow control device 450. The flow control device 450 is disposed along the length of the chute 404. The device 450 is disposed adjacent to the flow path of the balls that travel through the chute 404, so as to engage the balls. The device 450 regulates the flow of the balls from the bin 402 to the engagement portion 406. The device 450 controls the balls such that the balls do not clog in the engagement portion 406. It is preferred that the device 450 allow one ball at a time, i.e. per activation of the device 450. The device 450 is activated by the user to release a ball into the engagement portion 406.
In this exemplary embodiment, the device 450 is a conventionally available gating device. For example, the device 450 is a gating device commonly used to control the dispensing of bottles and cans from vending machines. It is preferred that the device be a tall gate product manufactured by Dixie-Narco, Inc., (www.gfv.dixienarco.com, see Dixie-Narco, Inc.'s parts list for vending machine model number DN 5000, “DN 5000 Parts”, pgs. 12 and 13, which is incorporated herein by reference in its entirety). The tall gate product is actuated by a solenoid 452. The solenoid 452 is electrically linked to the controller 500, such that a user can control its actuation.
It should be appreciated that any system adapted to release only one ball at a time from the chute would be sufficient to practice the present invention.
The lid 411 is adapted to prevent the balls from falling out when the ball launching machine is lifted or tilted-up.
The auger 436, the device 450, and the ball push member 420 are linked to the controller 500 via links 454, 456, and 458 respectively. It should be appreciated that the links 454, 456, and 458, or any two of them, can be combined in alternative embodiments, not shown. The links 454, 456, and 458 provide power to the respective devices. The links 454, 456, and 458 provide control signals from the controller 500 to the respective devices. It should be appreciated that the links 454, 456, and 458 can be any known or later developed device or system connecting the respective devices to the controller 500, including a direct cable connection, a radio frequency communication connection, infra-red, etc. Further, it should be appreciated that the control signals do not need to be sent along the links in the same manner that the power is sent. For example, the power can be sent via a direct cable connection and the control signal can be via a radio frequency. It will be appreciated that in other exemplary embodiments, the hopper 400 has its own controller, separate from controller 500, to which the links 454, 456, and 458 connect.
The present invention also includes a method for modifying a pitching machine with a ball launching device into a pitching/fielding machine with automatic control over orientation of the ball launching device. FIG. 14 displays a conventional, prior art pitching machine 600. The pitching machine 600 includes a ball launching device 602 and a support stand 604. The ball launching device 602 is similar to the ball launching device 200, described above. The support stand 604 is a tripod with a mounting support 606 that receives an attachment member 608 of the ball launching device 602. These types of pitching machine are made by a variety of entities, for example, JUGS (e.g. model nos. M1000/M1300) or ATEC (e.g. model name Casey).
The method of modifying an existing pitching machine in accordance with the present invention is generally shown in FIGS. 15 and 16. This method includes the steps of removing the ball launching device 602 from the support stand 604 of the conventional pitching machine 600, attaching a ball directing device 700, made in accordance with the present invention, to the support stand 604, and attaching the ball launching device 602 to the ball directing device 700.
Removing the ball launching device 602 from the support stand 604 of the conventional pitching machine 600 includes removing a securing fastener 610 from the mounting support 606. The securing fastener 610 extends through the wall of the mounting support 606 and engages a threaded hole, not shown, in the attachment rod 608. With the fastener 610 removed, the ball launching device 602 is removed from the support stand 604.
The ball directing device 700 is similar to the ball directing devices 100 described above. The device 700 includes an attachment member 702, shown in hidden lines. Attaching the ball directing device 700 includes inserting the attachment member 702 in the mounting support 606 of the support stand 604, as shown in the exploded view of FIG. 15. Preferably, although not necessary, the fastener 610 is inserted in the mounting support 606 and engages a threaded hole, not shown, in the attachment member 802 to secure the directing device 700 to the support stand 604.
Attaching the ball launching device 602 to the ball directing device 700 includes securing a frame 612 of the ball launching device 602 to the ball directing device 700 via a mounting bracket 704, which includes a hold-down member 706. The frame 612 is secured to the mounting bracket 704 similar to the way the frame 202 is secured to the mounting bracket 150 as described above with the device 10.
The method of modifying a pitching machine, according to the present invention, further includes attaching a hopper 708 to the ball launching device 602 as shown in FIG. 16. The hopper 708 is similar to the hopper 400 described above. The attaching the hopper step includes engaging support legs 710 with rods 712 of the ball directing device 700. The attaching the hopper step further includes engaging a first end 714 of an engagement portion 716 of the hopper 708 to a feed tube 614 of the ball launching device 602. The first end 714 is secured to the feed tube 614 via a threaded screw 616. A rectangular-shaped slip prevention bracket 711 is disposed between the head of the screw 616 and hopper, similar to the slip prevention bracket discussed above, to prevent detachment of the ball hopper. It should be appreciated that attaching the hopper is optional.
The method further includes attaching links 718 to a controller 720 of the ball directional device 700. The links 718 are similar to the links discussed above for the device 10.
The method of modifying an existing pitching machine according to the present invention further includes converting the support stand to a wheeled support stand, not shown in FIGS. 15 and 16. The wheeled support stand is similar to the support stand 300, disclosed above and shown in FIG. 1 for example. This converting step includes removing legs 618 (FIG. 15) from the mounting support 606. The legs 618 are removed by loosening a screw 620 that engages the mounting support 606. The converting step further includes inserting new legs, similar to legs 304, 306 and 308 described above, in the mounting support 606. The new legs are preferably shorter than the original legs of the support stand 604. Screw 620 is then tightened to secure the legs to the mounting support 606.
The converting step further includes securing axle housings and wheel assemblies, similar to those described above, to the free ends of the new legs. A cross member is then secured between two of the axle housings. Further, a pivotable handle is secured to the axle housing that is not connected to the cross member. It should be appreciated that the converting step is optional. It is preferred that the converting step be conducted after the removing of the ball launching device 602 step and before the attaching of the ball directing device 700 step.
The automatic ball delivery device 10, described above, is an embodiment of the present invention that can be used for a variety of purposes, such as throwing balls in the air, on the ground etc. However, it is preferred that with the embodiment described above, that the device 10 be used primarily for baseball/softball defensive practice or in any other situation wherein it is desired to throw a ball with primarily a side spin. There are situations, however, were it is desirous to be able to throw a ball with any type of directional spin.
FIG. 17 displays a ball directing device 800, which is an alternative embodiment of a ball directing device made in accordance with the present invention. The ball directing device 800 will allow a user to orient a ball launching device in a variety of positions so as to be able to throw a ball with any type of directional spin. The device 800 is similar to the ball directing device 100 described above and includes similar features, such as for example a support member 802, a tilt member 804, rotatable member 806, a first actuator assembly 808 and a second actuator assembly 810. The second actuator assembly 810 includes a first attachment member 834. One of the differences in this embodiment is that the second actuator assembly includes a second attachment member 846. The member 846 is operably configured such that when it is utilized, the tilt member 804 and the rotatable member 806 can selectively be pitched up via the first actuator assembly 808 to a substantially perpendicular relationship to the support member 802. The rotatable member 806 can then selectively be rotated via the second actuator assembly 810 so that the wheels of a ball launching device 880, shown in FIG. 19, are in a substantially vertical position. With the wheels in a substantially vertical position, a ball can be thrown with a forward or backward spin (e.g., the device can be used for more effective baseball/softball offensive practice).
FIG. 18 displays a portion of the device 800. The second actuator assembly 810 is disposed adjacent the bottom surface 818 of the support member 802. Preferably, an end of the second actuator assembly is disposed adjacent an outer periphery portion 820 of the support member 802. The second actuator assembly 810 is similar to and operates in a similar fashion to the second actuator assembly 110 described above. For example, the second actuator assembly 810 includes an actuator 812 and linkage 814. Further, the following features are similar to the corresponding features described above for the second actuator assembly 110, namely: a fixed end 816 and an extendable end 822 of the actuator 812; a housing 824; an extendable member 826; a motor 828; a pivot member 830; an intermediate member 832; an attachment member 834; a pivot end 836 and a second end 838 of pivot member; a first end 840 and a second end 842 of the intermediate member 832; and a universal joint 844.
The attachment member 834 is attached to the rotatable member 806. Preferably, the attachment member 834 is attached to a rear periphery portion 835 of the rotatable member 806. The second attachment member 846 is attached to a second periphery portion 847 of the rotatable member 806. The second periphery portion 847 is preferred to be disposed about 90 degrees from the rear periphery portion 835. However, it should be appreciated that in other exemplary embodiments, the second periphery portion 847 is disposed at degrees other than about 90 degrees from the rear periphery portion 835.
The universal joint 844 is selectively and removably attachable to either the attachment member 834 or the second attachment member 846. The selection of which attachment member to be used will depend on the desired use of the user. If the user wants to control the orientation of a ball launching device so as to throw a ball with generally a side spin on the ball, then the attachment member 834 will be utilized and the resulting device will operate similar to the device 10 described above. Otherwise, the second attachment member 846 is chosen to be attached to the universal joint 844 and the resulting device will be similar to the embodiment shown in FIG. 19. By using the second attachment member 846, the ball directing device 800 when used with a ball launching device may for example be effectively used for batting practice.
It will be appreciated that with the universal joint 844 attached to the second attachment member 846, the first actuator assembly 808 will control the angle of the axis of rotation of the ball and the second actuator assembly will control the pitch or attitude of the ball launching device. For example, the first actuator assembly can be actuated so as to raise the tilt member 804 such that the tilt member is substantially perpendicular to the support member 802. With such an arrangement, a ball launching device would throw a ball with substantially no side spin.
Similar to the ball directing device 100 described above, when the universal joint 844 is attached to the first attachment member 834, the second actuator assembly 810 is operably configured such that actuation of the actuator 812 causes panning of the rotatable member 804. The second actuator assembly 810 is adapted to pan the rotatable member 106 through the desired amount of rotation. Preferably, the rotation is through at least 110°.
The attachment member 834 is different than the attachment member 194 described above in the first embodiment. The attachment member 834 in this embodiment includes a bracket member 848, a connecting member 850 and a hinge 852. The bracket member 848 is fixed to the rotatable member 806. The connecting member 850 is attachable to the universal joint 844. The hinge 852 connects the bracket member 848 to the connecting member 850 and allows the connecting member to pivot relative to the bracket member 848. With the attachment member 834 having this configuration, the attachment member 834 will selectively not be stopped by stops 898 on the support member 802, because the connecting member 850 can be tilted up, by the user, as the attachment member 834 rotates past stops 898 when the second actuator assembly 810 is actuated. This is useful for when the second attachment member 846 is utilized.
The second attachment member 846 is similar in design to the attachment member 834. However, it should be appreciated that in other embodiments, the respective attachment members 834 and 846 are not similar. The attachment member 846 includes a bracket member 856, a connecting member 858 and a hinge 860. The bracket member 856 and the connecting member 858 are attached together via the hinge 860, which allows the connecting member 858 to pivot relative to the bracket member 856. The bracket member is fixed to the rotatable member 806. The connecting member is fixable to the swivel joint 844. The hinge 860 and the universal joint 844 provide sufficient degrees of freedom such that the second actuator assembly 810 will be able to operate (i.e. rotate the rotatable member 806) regardless of the amount the first actuator assembly 808 has tilted the tilt member 804 and the rotatable member 806 relative to the support member 802.
The second attachment member 846 also includes a spring 854. One end of the spring 854 is fixed to the bracket member 848 and the other end is connected to the connecting member 850. When the swivel joint 844 is not attached to the second attachment member 846, the spring is biased such that it will pivot the connecting member 850 toward the upper surface of the bracket member 848. In this way, the second attachment member 846 will have a more compact profile when not in use. The more compact profile will prevent the second attachment member 846 from undesirably coming into contact with other elements of the device when the attachment member 834 is being utilized. The spring 854 preferably has enough elasticity to easily allow a user to, when desired, pivot the connecting member 850 so that the second attachment member 846 can be attached to the universal joint 844.
Device 800 also includes a mounting system 866. Mounting system 866 is an alternative embodiment of the mounting bracket 150 discussed above. Mounting system 866 includes a ball launching attachment portion 868 and a hopper attachment portion 870. Both portions 868 and 870 are affixed to the top surface 872 of the rotatable member 806. In this embodiment, the portions 868 and 870 are not connected to one another.
The ball launching attachment portion 868 is similar to the ball launching attachment portion 152 described above and includes a guide 874, a catch member 876, a hold down member 878 and orifices 880 in the hold down member, as well as bolts 882 and receptacles 884. All of these features are similar to the corresponding features discussed above for the ball launching attachment portion 152. Ball launching attachment portion 868 differs from the ball launching portion 152 in several aspects. For example, the guide 874 and the catch member 876 are not directly affixed to the top surface 872 of the rotatable member 806. Rather, the guide 874 and the catch member 876 are affixed to an attachment plate 886. The attachment plate 886 is removably secured to the rotatable member 806.
It will be appreciated that with the attachment plate being removable from the rotatable member 806, additional or other attachment plates may be secured to the rotatable member 806. The additional or other attachment plates will include custom guides and/or other features operably configured to mate with other ball launching devices that have differing frames and require different guides for attachment. With this arrangement, a device made in accordance with the present invention can provide versatility in that a variety of conventional pitching machines can be used with the same ball directing device.
The attachment plate 886 in this exemplary embodiment is removably secured to the rotatable member 806 via brackets 888. Preferably, there are four brackets 888 attached to the attachment plate 886. The brackets 888 are operable configured to align with brackets 890 disposed on the rotatable member 806. Brackets 888 and 890 include orifices that align when the attachment plate 886 is in an attachment position. Bolts 892 extend through the orifices of the brackets 888 and 890 to secure the attachment plate 886 to the rotatable member 806.
The hopper attachment portion 870 includes rods 894. Rods 894 are similar to the rods 168 discussed above. Rods 894 are operably configured to engage support legs of a hopper, as discussed above. Rods 894, in this embodiment are directly affixed to the top surface 872 of the rotatable member 806.
Another difference between the device 800 and the device 10 is the bracket 809, shown in FIG. 19, that provides the pivotal attachment of the actuator 811 of the first actuator assembly 808. With the device 10, this bracket is disposed in substantially the same plane as the tilt member 104, as shown in FIG. 8. However, with the device 800, the bracket 809 is angled downward from the plane of the tilt member 804. The angled relationship between the bracket 809 and tilt member 804 prevents the bracket 809 from inadvertently hitting any other components of the device 800 when in operation.
FIG. 19 displays an exploded of view a hopper 900, a ball directional device 998, and a ball launching assembly 1000. The hopper 900 is an alternative embodiment of a hopper made in accordance with the present invention. The hopper is similar to the hopper 400 described above. The hopper includes a bin 902, a chute 904, an engagement portion 906 and support legs 908 and 910, which have cross support members 944 and 946. The hopper 900 also includes other similar features to the hopper 400, including, among other things, an auger (not shown), a ball flow control device (not shown) and a ball pushing member (not shown). The hopper 900 differs from the hopper 400 with respect to several features.
One difference, for example, is the additional feature of a swivel joint 912. In an actual reduction to practice, the swivel joint 912 is a lazy susan type swivel joint. The swivel joint 912 is disposed between an end 914 of the chute 904 and the engagement portion 906. The swivel joint 912 is operably configured to allow rotational movement of the chute 904 and the bin 902 relative to the engagement portion 906. The relative rotational movement is 0 to 360 degrees. However, it is preferred that the relative rotational movement be at least 180 degrees. With the relative rotational movement, the hopper 900 can be used with either embodiments of the ball directing devices described above, namely devices 100 and 800. More particularly, the relative rotational movement will allow the bin 902 and the chute 904 to be positioned (by rotation) such that the support legs 908 and 910 can engage either the rods 894 on the rotatable member 806, as described above, or rods 930 and 932 on a hopper support bracket, as described below. The latter is employed for the embodiment of the ball directing device 800 when the swivel joint 844 is attached to the second attachment bracket 846, as shown in FIGS. 18–19.
Another difference in this embodiment is the additional feature of the hopper support bracket 916, which has a hanger member 918 and a rod bracket 920. The hanger bracket 918 includes a main body 922 and hangers 924 and 926. The hangers 924 and 926 are attached to the main body 922. The hangers 924 and 926 are adapted to hang on a bolt 1002 of a handle 1004 of the ball launching device 1000. The rod bracket 920 includes a bar 928 that extends from the main body 918. The rod bracket 920 also includes rods 930 and 932, which are disposed on the bar 928. The rods 930 and 932 are operably configured to engage the support legs 908 and 910, respectively.
The hopper 900 also includes a slot 934 and protrusions 936 on an engagement end of the engagement portion 906 as well as a slide prevention bracket 938, all of which are similar to the slot 416, the protrusions 419 and the slide prevention bracket 417, respectively, of the hopper 400. However, the hopper 900 differs from the hopper 400 in that it also includes a second slot 940 and protrusions 942. The second slot 940 and protrusions 942 are provided to help secure the hopper 900 to the feed tube 1008 of the ball launching device 1000. Particularly the screw 1006 tightens down against the slide prevention bracket 938 similar to the previous embodiment. The second slot 940 and protrusions 942 are utilized for the embodiment of the ball directing device 800 when the swivel joint 844 is attached to the second attachment bracket 846, as shown in FIGS. 18–19.
It will be appreciated that the method of the present invention provides for modification of existing pitching machines such that an existing pitching machine can be modified with relative ease to obtain the benefits and features of the automatic ball delivery device according to the present invention.
FIG. 20 displays a broken perspective view of an engagement (or delivery) portion 1000 for use in connection for use in connection with a hopper (not shown). The engagement portion 1000 is an alternative embodiment of an engagement portion, made in accordance with the present invention. FIG. 21 is a cross-sectional view of the engagement portion 1000 taken along line 21—21 of FIG. 20. The engagement portion 1000 is similar to engagement portion 406 above in that it has first and second ends 1002 and 1004, and a housing 1007 that is substantially hollow. The engagement portion 1000 also includes a ball chamber 1008 and a ball pushing member 1020. The engagement portion 1000 differs from the engagement portion 406 with respect several features.
Particularly the pushing member 1020 in this embodiment is different. The pushing member includes a motor 1028, a pinion 1030 and a rack 1032. The motor 1028 preferably is an electric motor. However, the motor may be any motor known in the art or later developed. The pinion 1030 is connected to and driven by the motor 1028. The rack 1032 is slideably disposed along a side of the housing 1007. The rack 1032 is connected to and is driven by the pinion. The rack 1032 has teeth that engage teeth on the pinion 1030.
Also the pushing member 1020 differs in that it includes a first switch 1022, a second switch 1024 and a third switch 1026. The first, second and third switches 1022, 1024 and 1026 are preferably electro-mechanical. However, The first, second and third switches 1022, 1024 and 1026 may be any type of switches known in the art or later developed. The first switch is disposed in the housing 1007 and is activatable by the presence of a ball. The first switch 1022 is preferably disposed in the ball chamber 1008. The second and third switches 1024 and 1026 are disposed in the housing 1007. It is preferred that the second and third switches be disposed near the rack so that they can be activated by a member of the rack 1032. The second switch 1024 is disposed at a predetermined distance from the third switch 1026. The distance is determined by determining how much distance a ball will need to be pushed from the ball chamber 1008 to exit the first end 1002 of the housing 1007.
The pushing member 1020 includes a switch activation member 1034 and a ball engagement member 1021. It is preferred that the ball engagement member 1021 have a planar surface to engage a ball. It is further preferred that the planar surface be perpendicular to the longitudinal axis of the housing 1007. It should be appreciated that other surfaces, such as curved, cupped or angled, can be used for the ball engagement member, in other various exemplary embodiments.
The pushing member 1020 also includes a controller 1036 to provide electrical connections to the switches 1022, 1024 and 1026, and the motor 1028. The controller 1036 is connectable to a power source (not shown).
FIGS. 22 through 26 show the operation of the engagement device 1000. When a ball drops into ball chamber 1008, the ball activates first switch 1022, which activates the motor 1028 to rotate the pinion 1030 in a first rotational direction. See FIGS. 22 and 23. The rotation of the pinion 1030 in the first rotational direction, will cause the rack 1032 to slide so as to have the ball engagement member 1021 push the ball out of the first end 1012 of the housing 1007. See FIG. 24. The switch activation member 1034 travels with the rack 1032 until the switch activation member 1034 activates the second switch 1024, which reverses the direction of the motor to rotate the pinion 1030 in a second rotational direction, which is opposite the first rotational direction. Rotation of the pinion in the second rotational direction, will cause the rack 1032 to slide toward the second end 1004 of the housing 1007. See FIG. 25. The switch activation member 1034 activates the third switch 1026, which turns off (or deactivates) the motor 1028. See FIG. 26.
The motor 1028, a pinion 1030 and a rack 1032 of pushing member 1020 provide consistent movement of a ball through the housing 1007 to a delivery portion of a ball launching device, (not shown). The consistent movement of a ball provides a smooth delivery of the ball even when a ball launching device is in an inclined position. Further, consistent movement of a ball prevents a ball from becoming stuck or clogged at the feed tube, not shown, of a ball launching device to which the first end 1002 of the housing 1007 is operably configured to connect.
Further, first switch 1022, a second switch 1024 and a third switch 1026 provide automation of the pushing member 1020. Particularly, a user does not have to manually start and stop the pushing member 1020.
FIG. 27 shows a cross-sectional view of a hopper 2000. The hopper 2000 is an alternative embodiment of a hopper, made in accordance with the present invention. The hopper 2000 is similar to hopper 400 above in that it includes a bin 2002, a chute 2004 and a ball engagement device or delivery portion 2008. The hopper further includes a lid (not shown). The bin 2002 also includes an opening 2003 and an auger 2010 with a motor 2012. The chute 2004 includes a ball flow control device 2016 disposed along the length of the chute 2004. The hopper 2000 differs from the engagement portion 400 with respect several features.
Particularly, the chute 2004 includes a switch 2018 disposed adjacent or near to the ball flow control device 2016, as shown in FIG. 28. The ball flow control device 2016 is operably configured to be activated by a user. The switch 2018 is connected to the motor 2012, and controls the deactivation of the motor 2012, which rotates the auger 2010. The switch 2018 is operably configured to be activated by the presence of a ball in the ball flow control device 2016.
By default, once a user turns “on” the auger 2010 (by turning on the motor 2012), or turn on the entire device, the auger 2010 will remain “on” (will continue to rotate), until a ball activates the switch 2018. The ball will activate the switch 2018 when the ball is in the flow control device 2016. Once a ball is released from the flow control device 2016 into the ball engagement device 2008 it is delivered out of the ball engagement device 2008 by a pushing member 2020. When the ball leaves the flow control device 2016, the switch 2018 will be deactivated and the motor 2012 will be activated to as to rotate the auger 2010. With this arrangement, the auger will come “on” after every ball is release to the ball delivery device so as to ensure that another ball, located in the bin, will fall into the chute.
It should be appreciated that any system adapted to release only one ball at a time from the chute would be sufficient to practice the present invention.
It should also be appreciated that pushing member may be solenoids connected together by a engagement bar as described above or the rack and pinion embodiment also described above, or any other embodiment.
It will be appreciated that it is preferred that in all of the embodiments discussed above the various elements, such as the actuators, motors, solenoids and the like, can be electrically connected via links to a device controller, e.g. controller 500. The links in some embodiments provide power to the elements. In other embodiments, the links provide the controller with control over the operation of the respective elements. In yet other embodiments, the links provide both power and control. It should be appreciated that the links can be any known or later developed device or system connecting the respective elements to the device controller, including a direct cable connection, a radio frequency communication connection, infra-red, etc.
It will be appreciated that any reference above to a bolt or screw, or the like, is not intended to limit the invention to such a particular fastener, unless specifically noted, and that one skilled in the art will recognize that other types of known fasteners can be used for the respective particular applications.
While this invention has been described in conjunction with the specific embodiments outlined above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the embodiments of the invention, as set forth above, are intended to be illustrative, not limiting. Various changes may be made without departing from the spirit and scope of this invention.

## Claims

1. A ball pushing device for use with a ball hopper, comprising:
a housing having first and second ends, an opening for accepting balls and a ball chamber adjacent to the opening;
a motor coupled to the housing;
a pinion connected driven by the motor;
a rack having a ball engagement end, wherein the rack is slideably disposed within the housing and operably configured to engage and be driven by the pinion;
a first switch disposed in the housing and operably configured to activate the motor to rotate the pinion in a first direction and the first switch is activatable by the presence of a ball in the ball chamber;
a second switch disposed in the housing operably configured to activate the motor to rotate the pinion in an opposing second direction;
a third switch disposed in the housing at a predetermined distance from the second switch and operably configured to deactivate the motor; and,
a switch activation member disposed on the rack.

2. A ball pushing device, as recited in claim 1, wherein upon activation of the first switch, the motor rotates the pinion in the first direction causing the rack to push the ball out of the first end of the housing, the switch activation member travels with the housing until the activation member activates the second switch which then reverses the direction of the pinion in a second direction causing the movement of the rack towards the second end of the housing until the switch activation member strikes the third switch.

3. A ball pushing device, as recited in claim 1, wherein the first, second and third switches are electro-mechanical switches.

4. A ball pushing device, as recited in claim 1, wherein the ball engagement end of the rack is substantially planar and perpendicular to a longitudinal axis of the housing.

5. A hopper for use with a ball launching device, comprising:
a bin for holding balls;
a ball engagement portion having a housing having first and second ends, an opening for accepting balls and a ball chamber adjacent to the opening;
a chute connecting the bin and the ball engagement portion;
a motor coupled to the housing;
a pinion connected to and driven by the motor;
a rack having a ball engagement end, wherein the rack is slideably disposed within the housing and operably configured to engage and be driven by the pinion;
a first switch disposed adjacent to the rack and operably configured to activate the motor to rotate the pinion in a first direction and the first switch is activatable by the presence of a ball in the ball chamber;
a second switch disposed adjacent to the rack and operably configured to activate the motor to rotate the pinion in an opposing second direction;
a third switch disposed adjacent to the rack at a predetermined distance from the second switch and operably configured to deactivate the motor; and,
a switch activation member disposed on the rack.

6. A hopper, as recited in claim 5, wherein upon activation of the first switch the motor rotates the pinion in the first direction causing the rack to push the ball out of the first end of the housings the switch activation member travels with the rack until the switch activation member activates the second switch which then reverses the direction of the pinion in a second direction causing the movement of the rack towards the second end of the housing until the switch activation member strikes the third switch.

7. A hopper, as recited in claim 5, further comprising a swivel joint connecting the chute to the ball engagement portion, wherein the chute and the bin are rotatable about the ball engagement portion.

8. A hopper, as recited in claim 5, wherein the first, second and third switches are disposed in the housing.

9. A hopper, as recited in claim 5, further comprising a controller, wherein the controller transmits and receives radio frequency signals.

10. A ball hopper for use with a ball launching device, comprising:
a bin having an opening and an auger disposed adjacent to the opening in the bin;
a ball engagement device having a housing portion and a ball channel;
a chute having first and second ends connecting the opening of the bin and the ball channel of the ball engagement member;
a ball gate disposed along the length of the chute operably configured to be activated by a user; and,
a switch disposed adjacent to the gate and operably configured to deactivate the auger, the switch being activated by the presence of a ball at the gate.

11. A ball hopper, as recited in claim 10, further comprising a ball pushing member disposed adjacent the ball channel.

12. A ball hopper, as recited in claim 11, wherein the ball pushing member comprises at least one solenoid.

13. A ball hopper, as recited in claim 10, further comprising at least one support leg attached to at least one of the bin and the chute, and the at least one support leg being attachable to the ball launching device.

14. A ball hopper for use with a ball launching device, comprising:
a bin having an opening;
a delivery portion having a ball channel, the delivery portion is attachable to the ball launching device;
a chute having first and second ends, the first end is in communication with the opening of the bin and the second end is in communication with the ball channel;
a ball gate disposed along the length of the chute; and,
a ball pushing member disposed adjacent the ball channel, wherein activation of the ball gate allows a ball from the bin to travel through the chute into the ball channel of the delivery portion, and activation of the ball pushing member moves the ball out of the ball channel to the ball launching device.

15. A ball hopper, as recited in claim 14, further comprising:
an auger disposed adjacent the opening in the bin; and,
at least one support leg attached to at least one of the bin and the chute, and the at least one support leg being attachable to a ball directing device.

16. A ball hopper, as recited in claim 14 further comprising a swivel joint connecting the second end of the chute to the delivery portion, wherein the chute and the bin are rotatable about the delivery portion.

17. An automatic ball throwing device, comprising:
a ball directing assembly having a first member, a second member pivotally attached to the first member, a third member disposed substantially parallel to the second member and rotatably connected to the second member, a first actuator connected to the first and second members and a second actuator connected to the first and third members,
a ball hopper having a bin, a delivery portion and a chute connecting the bin to the delivery portion, the hopper being attached to the ball launching device and operably configured to deliver balls from the bin and through the chute and delivery portion to the ball launching device; and,
a ball launching device connected to the third member, wherein orientation of the ball launching device is controlled by actuation of the first and second actuators such that when the first actuator is actuated the second member pivots relative to the first member and when the second actuator is actuated the third member rotates relative to the second member.

18. An automatic ball throwing device, as recited in claim 17, wherein:
the bin is for holding balls;
the delivery portion has a housing having first and second ends, an opening for accepting balls and a ball chamber adjacent to the opening;
a motor is connected to the housing;
a pinion is connected to and driven by the motor;
a rack, has a ball engagement end, wherein the rack is slideably disposed within the housing and operably configured to engage and be driven by the pinion;
a first switch is disposed in the housing and operably configured to activate the motor to rotate the pinion in a first direction and the first switch is activatable by the presence of a ball in the ball chamber;
a second switch is disposed in the housing operably configured to activate the motor to rotate the pinion in an opposing second direction;
a third switch is disposed in the housing at a predetermined distance from the second switch and operably configured to deactivate the motor; and,
a switch activation member is disposed on the rack.

19. An automatic ball throwing device, as recited in claim 17, wherein:
the bin has an opening and an auger is disposed adjacent to the opening in the bin;
the delivery portion has a housing portion and a ball channel;
the chute has first and second ends connecting the opening of the bin and the ball channel of the deliver portion;
a ball gate is disposed along the length of the chute operably configured to be activated by a user; and,
a switch is disposed adjacent to the gate and operably configured to deactivate the auger, the switch being activated by the presence of a ball at the gate.

20. An automatic ball throwing device, as recited in claim 17, wherein:
the bin has an opening;
the delivery portion has a ball channel, the delivery portion is attachable to the ball launching device;
the chute has first and second ends, the first end is in communication with the opening of the bin and the second end is in communication with the ball channel;
a ball gate is disposed along the length of the chute; and,
a ball pushing member is disposed adjacent the ball channel, wherein activation of the ball gate allows a ball from the bin to travel through the chute into the ball channel of the delivery portion, and activation of the ball pushing member moves the ball out of the ball channel to the ball launching device.