Abstract:
An equine bandage wrapping device includes a motor with a rotating drive shaft mounted on a hinged bracket. A forked spindle coupled to the motor engages the bandage. The hinged bracket pivots in response to external force causing a torque on the hinge. The external force is supplied by the user pulling slightly against the bandage while it is secured to the forks. Such force is resisted by a spring disposed between a base plate and the underside of the floating end of the hinged bracket. If sufficient force is applied to overcome the spring force, then the electrical circuit between the motor and power source is closed, resulting in the motor turning on. The circuit is opened by removing the external force to cause the spring to return to its extended position, resulting in the motor stopping movement.

Description:
PRIORITY 
       [0001]    This application claims the benefit of U.S. Provisional Application Ser. No. 62/044,821, filed on Sep. 2, 2014, which is hereby incorporated herein by reference in its entirety. 
     
    
     FIELD 
       [0002]    The present invention relates generally to bandage winding devices and systems and, more particularly, to a motorized bandage wrapping system for horse care. 
       BACKGROUND 
       [0003]    Re-usable leg wraps and bandages are frequently used for horses, especially performance and racing horses. These bandages are often applied to each of the horse&#39;s legs before specific events and are removed following completion of the event. The considerable length of each bandage results in each bandage being wound up for storage between uses. 
         [0004]    Winding the bandages up by hand is slow, labor-intensive, inconsistent and costly. Hand-winding can also lead to long-term joint health issues similar to persons who use computers for many hours, carpenters and assembly-line workers. 
         [0005]    Hand-crank operated winding devices are also inconvenient and only slightly less time consuming to operate because such devices require one hand to crank, leaving only one hand free to guide the bandage while its being rewound. 
         [0006]    Motorizing the spooling process is problematic because it is desirable to use both hands to guide the bandage as it wraps on the spool. Thus operation of an on/off switch by one hand is inconvenient and presents a potentially dangerous free-spinning spool situation. Foot-actuated pedals are not desirable because they are exposed to the re-wrapping environment that may include water, dirt and heavy human/animal foot traffic. 
         [0007]    Thus, there remains a need to provide an improved bandage wrapping device, system and method. 
       SUMMARY 
       [0008]    The present invention provides a unique device, system and method that rewraps bandages quickly, neatly and tightly as compared to the conventional techniques described above. 
         [0009]    Disclosed is a wrapping apparatus comprising a winding motor actuated by an internal micro-pressure switch that allows the user to keep two hands on the bandage ensuring a smooth and quick process. The pressure switch activates the motor to wind or turn the spool when the bandage is pulled or tugged slightly by the user. When the user releases the pressure on the bandage the pressure switch returns to the off position to stop the motor. 
         [0010]    The pressure switch eliminates the need for a foot switch or other on/off means, and thus makes for an efficient, clean and safe environment in the re-wrapping area. This can reduce or eliminate the physical stress on hands and wrists that can cause nerve, tendon and ligament damage and long-term injury such as Carpal Tunnel and Tarsal Tunnel Syndrome while manually re-wrapping. This makes the re-wrapping process faster and more enjoyable, which can motivate the consumer to use “non-disposable” environmentally responsible wrapping materials. 
         [0011]    Also disclosed is an equine bandage wrapping device including a motor with a rotating drive shaft mounted on a hinged bracket. A forked spindle coupled to the motor engages the bandage. The hinged bracket pivots in response to external force causing a torque on the hinge. The external force is supplied by the user pulling slightly against the bandage while it is secured to the forks. Such force is resisted by a spring disposed between a base plate and the underside of the floating end of the hinged bracket. If sufficient force is applied to overcome the spring force, then the electrical circuit between the motor and power source is closed, resulting in the motor turning on. The circuit is opened by removing the external force to cause the spring to return to its extended position, resulting in the motor stopping movement. 
         [0012]    The disclosure includes an equine bandage wrapping device. The device includes a base plate and a frame mounting plate pivotally coupled to a base plate. The frame mounting plate includes a first side pinned to the base plate and an opposing free side. The free side is pivotal between a first position and a second position. A spring is disposed between the base plate and the frame mounting plate. The spring is compressed when the frame mounting plate pivots from the first position to the second position. An electric motor is disposed on the frame mounting plate. A switch is electrically coupled to the motor and mechanically coupled to the frame mounting plate such that the switch is closed to complete an electrical circuit and turn on the electric motor when the frame mounting plate pivots from the first position to the second position and such that the switch is activated to open an electric circuit which turns off the electric motor when the spring is uncompressed due to pivoting of the frame mounting plate from the second position to the first position. A forked spindle assembly is coupled to the electric motor that is configured to wind up an equine bandage as the motor turns. 
         [0013]    Also disclosed is a method of wrapping an elongated bandage having first and second opposing ends. The method includes engaging a bandage with a forked spindle adjacent a first end of the bandage. A tension force is applied to the bandage to cause a motor to rotate the forked spindle while the tension force is applied. The tension force is withdrawn from the bandage to stop the motor from rotating the forked spindle. 
         [0014]    The tension force can be withdrawn from the bandage when the bandage is finished winding up into a spool on the forked spindle, or when the user decides to stop the winding process. 
         [0015]    The application of the tension force to the bandage can be in a direction normal to an axis of rotation of the forked spindle. The tension force in certain embodiments causes a motor mounting frame to pivot about an axis that is parallel to an axis of rotation of the forked spindle. In certain embodiments applying the tension force to the bandage causes a pressure switch to close an electrical circuit that provides power to the motor. 
         [0016]    Withdrawing the tension force to the bandage causes a pressure switch to open an electrical circuit that provides power to the motor. 
         [0017]    The motor can be disposed inside of an enclosure such that at least a portion of the forked spindle protrudes from the enclosure. The enclosure can be mounted on one of a vertical surface and a horizontal surface. 
         [0018]    Further disclosed is an equine bandage wrapping system. The system includes a base plate and a frame mounting plate pivotally coupled to a base plate. A resilient means, such as a spring or gasket, is disposed between the base plate and the frame mounting plate for biasing the free side of the frame mounting plate away from the base plate. An electric motor is disposed on the frame mounting plate. A switch is electrically coupled to the motor and mechanically coupled to the frame mounting plate such that the switch is activated to complete an electrical circuit and turn on the electric motor when a free end of the frame mounting plate pivots towards the base plate and such that the switch is deactivated to open an electric circuit to turn off the electric motor when the free end of the frame mounting plate pivots away from the base plate. A forked spindle assembly is coupled to the electric motor that is configured to wind up an equine bandage as the motor turns. A housing can be disposed over the base plate that encloses the motor, the switch, the resilient means and the frame mounting plate, wherein at least a portion of the forked spindle assembly externally protrudes from the housing. 
         [0019]    The above summary is not intended to limit the scope of the invention, or describe each embodiment, aspect, implementation, feature or advantage of the invention. The detailed technology and preferred embodiments for the subject invention are described in the following paragraphs accompanying the appended drawings for people skilled in this field to well appreciate the features of the claimed invention. It is understood that the features mentioned hereinbefore and those to be commented on hereinafter may be used not only in the specified combinations, but also in other combinations or in isolation, without departing from the scope of the present invention. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0020]      FIG. 1  is a perspective view of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0021]      FIG. 2  is a top view of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0022]      FIG. 3  is an end view of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0023]      FIG. 4  is a side view of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0024]      FIG. 5  is a spindle end view of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0025]      FIG. 6  is an exploded assembly view of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0026]      FIG. 7  is a perspective view of a re-wrapping device for animal leg bandages with the top cover removed according to certain example embodiments. 
           [0027]      FIG. 8  is a perspective view of a re-wrapping device for animal leg bandages with the top cover removed according to certain example embodiments. 
           [0028]      FIG. 9  is a perspective view of a portion of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0029]      FIG. 10  is a perspective view of a re-wrapping device for animal leg bandages with the top cover removed according to certain example embodiments. 
           [0030]      FIG. 11  is a perspective view of a portion of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0031]      FIG. 12  is a perspective view of a portion of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0032]      FIG. 13  is a perspective view of a portion of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0033]      FIG. 14  is a perspective view of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0034]      FIG. 15  is a perspective view of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0035]      FIG. 16  is a perspective view of a portion of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0036]      FIG. 17  is a perspective view of a top cover of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0037]      FIG. 18  is another perspective view of a top cover of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0038]      FIG. 19  is a perspective view of a portion of a re-wrapping device for animal leg bandages according to certain example embodiments. 
           [0039]      FIG. 20  is a perspective view of a portion of a re-wrapping device for animal leg bandages with pressure applied to the spindle according to certain example embodiments. 
       
    
    
       [0040]    While the invention is amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that the intention is not to limit the invention to the particular example embodiments described. On the contrary, the invention is to cover all modifications, equivalents, and alternatives falling within the scope of the invention as defined by the appended claims. 
       DETAILED DESCRIPTION 
       [0041]    In the following descriptions, the present invention will be explained with reference to various exemplary embodiments. Nevertheless, these embodiments are not intended to limit the present invention to any specific example, environment, application, or particular implementation described herein. Therefore, descriptions of these example embodiments are only provided for purpose of illustration rather than to limit the present invention. 
         [0042]    Referring to  FIGS. 1-5 , the wrapping apparatus  100  generally comprises an electric motor disposed inside of a housing  102  with a forked spindle assembly  104  that protrudes outwards from the housing  102 . The spindle  102  is coupled to the motor&#39;s output shaft so that the motor turns the spindle when activated. 
         [0043]    As will be described in detail later herein, the motor is mounted so that it can pivot in response to pressure being applied laterally (i.e. in a direction normal to the direction of the longitudinal length of the spindle forks). A pressure switch is coupled to the motor assembly so that the pivoting of the motor causes the motor to activate and turn the spindle. The motor pivot is spring-mounted so that releasing pressure on the spindle forks causes the motor to turn off. 
         [0044]    Referring now to  FIG. 6 , further details of the components of the apparatus will now be described. The electric motor  106  includes an output shaft  108  protruding from a first side. A motor mounting frame  110  is fastened to the motor  106  with a plurality of fasteners (e.g. screws  112 ) so that the output shaft protrudes through an aperture  114  defined in the motor mounting frame  110 . 
         [0045]    A spindle  116  is secured to the output shaft  108  and a pair of forks  118  are secured to the spindle  116 . The combined spindle  116  and forks  118  will be referred to herein as the spindle assembly  104 . A washer  120  can also be disposed over the output shaft  108  and between the mounting frame  110  and the rear side of the spindle  116 . 
         [0046]    The mounting frame  110  defines a vertical portion  122  and a horizontal portion  124 . The horizontal portion  124  defines pivot mount flanges  126  along a first side thereof and an actuator flange  128  on an opposing second side thereof. The side of the mounting frame  110  possessing the mounting flanges  126  can also be designated the pivoting side and the opposing side possessing the actuator flange can be designated the floating side. 
         [0047]    The mounting frame  110  is pivotally mounted to a base plate  130  by a pin  132  engaging the pivot mounting flanges  126  of the mounting frame  110  and securing said flanges  126  to respective pivot mounting flanges  134  provided to the base plate  130 . The pin  132  can be secured by a nut or other conventional means. A close-up of this pivotal coupling of the mounting frame  110  to the base plate  130  is shown in  FIG. 9 . 
         [0048]    A spring  136  is disposed vertically between the bottom surface of the actuator flange  128  of the mounting frame  110  and the top surface of the base plate  130 . A bolt or other retention means can be disposed through the longitudinal center opening of the spring  136  to secure the spring  136  to one of the base plate  130  or the mounting frame  110 . In one embodiment, a bolt is disposed in an upward extending direction though the spring with the bolt head maintained below the bottom of the spring by a washer or nut. Then the opposing or threaded end of the bolt  138  extends through an aperture in the actuator flange  128 , and is secured above the flange  128  with a washer and nut. This arrangement allows the spring to be compressed when the motor is pivoted vertically downwards towards the base plate  130 , and then to return the motor to the picoted position away from the base plate in the absence of an applied force, all while limiting the travel of the motor between these two end positions. 
         [0049]    An activation switch  140  is disposed on the motor, the motor housing or the mounting frame such that the switch  140  is actuated to complete an electrical circuit and turn on the motor when the spring  130  is compressed. Then the switch opens the circuit to deactivate the motor when the spring expands or decompresses. Thus, it can be appreciated that applying a force in a direction normal to the longitudinal length of the forks  118  will cause the motor to pivot towards the base plate  130 , thereby compressing the spring  136  and activating the switch  140  to turn the motor  106  on. Releasing or ceasing application of the activation force will cause the spring  136  to return the motor  106  to the extended position and turn off the motor. 
         [0050]    The winding apparatus can be mounted to a surface using a wall mounting plate  144 , which is shown in detail in  FIG. 6 . Mounting fasteners (e.g. screws  146 ) are illustrated in  FIGS. 3-6 . The wall mounting plate  144  is mounted to either a vertical surface or to a horizontal surface. Thus, when mounted to a vertical surface, a vertically downward force applied to the bandage engaged with the forked spindle  104  will turn the motor on. On a horizontal surface, a force component towards the user in the horizontal plane is applied to the bandage engaged with the forked spindle  104  to turn the motor on. In either case, releasing tension on the bandage will turn the motor off automatically. 
         [0051]      FIGS. 7-8  and  10 - 13  provide illustrations of the assembled wrapping device with the cover  102  removed. Note that the spring  136  is shown in the extended or uncompressed state. Thus, the motor  106  is off in this depiction. 
         [0052]    The fan  142  shown throughout these embodiments is optionally provided to cool the motor  106  and the interior of the housing  102 . 
         [0053]    One type of suitable motor  106  is a Rex Engineering E69477 Gear Motor, 115V/60 Hz, 5.75:1 Ratio, 1 inch× 5/16 inch shaft with fan. This is a shaded pole motor which is AC powered and runs in only one direction. The output speed is variable from 2-500 rpm. The output torque is 50 inch-pounds and has built-in thermal protection with auto-reset. Preferred operating RPM range is from 80-100 rpm. 
         [0054]    The motor can operate using 120V AC, 240V AC or 24V AC, or other suitable current, or by battery power, or by a combination thereof. While the motor in one embodiment is powered by conventional household AC power via a cord and conventional plug. In other embodiments, a rechargeable onboard battery can be used to power the motor. In yet another embodiment, the motor can be operated via either or both of the onboard battery and conventional household current. 
         [0055]      FIGS. 14-15  illustrate the motor in the activated and deactivated position, respectively. In  FIG. 14 , the spring  136  is compressed toward the base plate  130 . In  FIG. 15 , the spring is uncompressed, so the spring is at its maximum travel as limited by the spring retention bolt  138  and its respective fastener. A close-up of the spring  136  fastened to the actuator flange  128  by the spring retention bolt  138  is provided in  FIG. 16 . Note that only one spring is illustrated, but two or more springs can be provided without departing from the scope of the invention. In addition, other resilient or biasing means such as compressible rubber gaskets, air and other fluid-filled bladders, etc. can be used instead of, or in addition to, the spring in alternative embodiments. 
         [0056]      FIGS. 17-18  depict the housing  102  of the apparatus. The housing defines an outer enclosure having an open interior. The housing possesses an open bottom side that fits over the base plate  130 . Screw holes on front and back sides can be used to secure the housing to the base plate with a plurality of screws, bolts or other fastening means. A first side of the enclosure includes a spindle aperture  148  to allow the spindle  116  of the spindle assembly  104  to protrude through the housing. The diameter of the spindle aperture  148  is larger than the spindle&#39;s diameter (or appropriately shaped) so that the spindle can move freely (i.e. has clearance) as the pivot spring is fully compressed and decompressed. 
         [0057]    Note that the preferred housing  102  is plastic, but can be formed of any suitable material, including metal. When mounted on a vertical surface, the housing  102  provides a surface for resting complete rewrapped bandage spools. 
         [0058]      FIG. 19  shows the assembled wrapping device  100  in the “off” position. Then when pressure is applied to the forks  118  as indicated by the thumb in  FIG. 20 , the motor and other components mounted to the mounting frame pivot slightly as the pivot spring compresses and the motor is turned on. Of course, in use, the pressure is applied by pulling slightly on the bandage to be wrapped, not by an actual thumb of the user. 
         [0059]    In use, the user first engages one end of the equine bandage with the forks  118  of the spindle assembly  104 . Then, the user tugs downward or toward themselves (depending on the orientation in which the apparatus is mounted) to activate the motor  106 . This activation system and method leaves both hands available to guide the equine bandage as the bandage is rolled up on the forked spindle assembly  104 . When the opposing end of the bandage is reached, the pressure maintaining the motor in the “on” position ceases because there is nothing for the user left to grasp. Thus, the motor automatically turns “off.” The user then removes the wrapped bandage spool by sliding it longitudinally off of the forks  118 . 
         [0060]    It should be noted that the tension in the wrapped bandage can be adjusted by the user by adjusting how hard the user tugs on the bandage with their hands as it wraps up on the spindle. This allows the user to simply and easily achieve desired re-wrap tightness without the need to adjust the operation of the device. 
         [0061]    The amount of pressure required to turn the motor on and off is controlled by the spring compression force. Preferably the compression force is selected such that a slight tension is placed on the bandage, but not so much that the bandage is appreciably tensioned while wrapping. This selection of the turn on/off force thus allows the user to wrap the bandage very loose, very tight or anywhere in between as the user desires merely by how hard they pull on the bandage while it winds up. 
         [0062]    The wrapping device can optionally be provided with a master override OFF switch (not shown) that will prevent the wrapping device from being activated in the conventional matter if the override switch is in the off state. Such switch is preferably provided to a portion of the outer housing. 
         [0063]    The wall mounting plate  144  can be configured so that it is separately mounted to a vertical or horizontal surface. Then the plate can be removably attached to the mounting plate assembly, so that it can slide and lock onto a permanent or temporary mounting position as the user may desire. This functionality can be provided, for example, as shown in  FIG. 6 , by the protruding pins  150  on the mounting plate  144  and the respective locking apertures  152  defined in the base plate  130 . In other alternative embodiments, a hanging bracket can be provided for securing the base of the device to a temporary location, such as over a wood beam. Securing the base plate  130  to the hanging bracket can be provided in the same manner as shown in  FIG. 6 . 
         [0064]    The wrapping apparatus can be configured to be free from external levers and switches. Such external levers and switches create points of potential failure and can present dangers to operators, animals, clothing, equipment, etc. since they may snag, catch and abrade when contacting the device. 
         [0065]    The various brackets, plates and fastening hardware are preferably formed of metal, but other suitable materials can be used without departing from the scope of the invention. 
         [0066]    The forks  118  depicted in the figures are elongated cylinders extending parallel to one another and including tapered ends. The tapered free ends facilitate the introduction and removal of the equine bandage with the forked spindle assembly  104 . The forks  118  need not be parallel to one another. One of the forks can converge towards the other either in a straight line or in a curved manner as the forks go from the base to the tips. Both forks  118  can converge towards each other as well as they extend towards their respective free ends. 
         [0067]    Other then the tapered ends, the forks  118  are shown to have a constant diameter. However, the forks  118  can be curved and/or have varied diameters along their lengths to facilitate self centering of the bandage as it is would. The cross-section also need not be circular, but can be, semi-circular, polygonal, or another complex shape. The 118 forks can be formed of metal, plastic, carbon fiber, or other rigid material. 
         [0068]    While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it will be apparent to those of ordinary skill in the art that the invention is not to be limited to the disclosed embodiments. It will be readily apparent to those of ordinary skill in the art that many modifications and equivalent arrangements can be made thereof without departing from the spirit and scope of the present disclosure, such scope to be accorded the broadest interpretation of the appended claims so as to encompass all equivalent structures and products. Moreover, features or aspects of various example embodiments may be mixed and matched (even if such combination is not explicitly described herein) without departing from the scope of the invention.