# Patent

## Title
Animal crate

## Abstract

The present disclosure provides a door assembly for an animal enclosure. The assembly includes a door frame having a plurality of interconnected horizontal and vertical wires that define an opening for an animal to pass therethrough. The assembly also includes a door configured to move between an open position and a close position relative to the door frame. A latch is pivotably coupled to the door and includes a mechanism that is removably coupled to the door frame. The assembly further includes a first vertical wire and a second vertical wire of the door. A first guide wire and a second guide wire are coupled to the door frame. The first vertical wire is coupled to and moves along the first guide wire between the open and close positions, and the second vertical wire is coupled to and moves along the second guide wire between the open and close positions.

## Background
RELATED APPLICATIONS
This application claims priority to U.S. Provisional Patent Application Ser. No. 61/758,400, filed on Jan. 30, 2013, and U.S. Provisional Patent Application Ser. No. 61/879,716, filed on Sep. 19, 2013, both of which are hereby incorporated by reference in their entirety.


FIELD OF THE INVENTION
The present invention relates to an apparatus for containing animals, and in particular to a collapsible wire crate for containing animals.
BACKGROUND
The use of animal cages is well known in the prior art. Many conventional cages have been developed over the years for housing animals of different sizes, and through the development of these cages flexibility and portability have become points of emphasis. Some conventional cages, for example, have been designed to collapse to a compact position for portability. Others have been designed of light weight and from durable materials. Conventional cages have been designed for ease of transporting an animal.
Most conventional cages include at least one door for providing access to the interior of the cage. An animal can enter or exit the cage through the opening when the door is opened, and the animal can be safely contained in the cage when the door is closed. Many conventional cages include a door that is attached to the cage via a hinge. This allows the door to be swung open and closed. A spring activated latch or the like have been incorporated into the design of the door to allow a user to open or securely lock the door.
Many of these conventional designs have limitations, however. For instance, the door that is hingedly attached to the cage can be swung open or closed too quickly and scratch or damage another object such as a wall or furniture. Hinged doors also require placement in a location with enough space to allow the door to swing open. This limits where the cage may be placed or stored. In addition, due to the hinged connection, the door may not be able to remain partially opened, i.e., the door is either in an open position or close position.
Therefore, a need exists for an improved animal crate that can be collapsible, portable, and overcomes some of the above-mentioned limitations in the prior art.
SUMMARY
In a first embodiment of the present disclosure, a door assembly for an animal enclosure is provided. The door assembly includes a door frame having a plurality of interconnected horizontal and vertical wires that define an opening for an animal to pass therethrough and enter or exit the interior of the enclosure; a door configured to move between an open position and a close position relative to the door frame, the door having a plurality of interconnected horizontal and vertical wires and being slidably coupled to the door frame to allow egress and ingress through the opening; a latch pivotably coupled to the door, wherein the latch includes a latching mechanism removably coupled to one of the plurality of horizontal wires of the door frame; a first vertical wire and a second vertical wire of the door, the first vertical wire and the second vertical wire being spaced from one another such that the first vertical wire is at a first end of the door and the second vertical wire is at a second end of the door; and a first guide wire and a second guide wire coupled to the door frame; wherein, the first vertical wire is coupled to and moves along the first guide wire between the open and close positions, and the second vertical wire is coupled to and moves along the second guide wire between the open and close positions.
In one example, the door assembly includes a catch member coupled to the frame, the catch member configured to engage the door in the close position. In a second example, a first wire of the plurality of horizontal wires of the door has a first end and a second end, the first end being removably engaged to the catch member in the close position. In a third example, the latch is pivotably coupled about the first wire of the door. In a fourth example, the door frame comprises a first support wire and a second support wire, the first support wire being vertically spaced from the second support wire; and the catch member being coupled to the first support wire and the second support wire.
In a fifth example, the latch is formed by a single wire having a first end and a second end, the first end forming a curled end and pivotably coupled to a horizontal wire of the door and the second end being bent and pivotably coupled to the horizontal wire; and the latching mechanism is formed by a bend in the second end of the single wire; further wherein, the latching mechanism is releasably coupleable to any location along the length of the one of the plurality of horizontal wires of the door frame to position the door in the open position, the close position, and any position therebetween. In a sixth example, the first guide wire and the second guide wire are bent to form guide openings. In a seventh example, the size of each guide opening is substantially the same and each defines the length or distance of travel of the door.
In a seventh example, the first vertical wire comprises a curled first end coupled to the first guide wire and a substantially straight second end; and the second vertical wire comprises a curled first end coupled to the second guide wire and a substantially straight second end. In an eighth example, the door assembly includes a third guide wire coupled to the door frame; and a fourth guide wire coupled to the door frame; wherein, the substantially straight second end of the first vertical wire is coupled to and moves along the third guide wire, and the substantially straight second end of second vertical wire is coupled to and moves along the fourth guide wire. In a ninth example, the first guide wire and the second guide wire are coupled near the top of the door frame, and the third guide wire and the fourth guide wire are coupled near the bottom of the door frame. In a tenth example, the third guide wire and the fourth guide wire are bent to form guide openings through which the first and second vertical wires, respectively, move through between the open and close positions.
In another embodiment of this disclosure, an animal crate includes a door frame having a plurality of interconnected horizontal and vertical wires that define an opening for an animal to pass therethrough and enter or exit the interior of the animal crate; a door configured to move laterally between an open position and a close position relative to the door frame, the door having a plurality of interconnected horizontal and vertical wires; and at least two mechanisms releasably coupling the door to the door frame in the close position, where one of the two mechanisms is pivotably coupled to the door and the second of the two mechanisms is affixed to the door frame; wherein, the first of the two mechanisms is releasably coupleable to any location along a length of one of the plurality of horizontal wires of the door frame such that the door is disposable relative to the door frame in the open position, the close position, or any position therebetween.
In one example, the first of the two mechanisms comprises a latch pivotably coupled to the door, wherein the latch is pivotable between a first position in which the latch is engaged with the one horizontal wire of the door frame and a second position in which the latch is disengaged from the one horizontal wire of the door frame. In a second example, the second of the two mechanisms comprises a catch member coupled to the frame, the catch member configured to engage the door only in the close position. In a third example, the animal crate includes a first vertical wire and a second vertical wire of the door, the first vertical wire and the second vertical wire being spaced from one another such that the first vertical wire is at a first end of the door and the second vertical wire is at a second end of the door; and a first guide wire and a second guide wire coupled to the door frame; wherein, the first vertical wire is coupled to and moves along the first guide wire between the open and close positions, and the second vertical wire is coupled to and moves along the second guide wire between the open and close positions. In a fourth example, the animal crate includes a first wire of the plurality of horizontal wires of the door having a first end and a second end, the first end being elastically bent outwards away from interior of the animal crate; wherein, the first end engages the second of the two mechanisms in the close position and maintains the door in the close position until the first end is disengaged from the second of the two mechanisms.
In a different embodiment, an animal enclosure includes a top member, a bottom member, and a plurality of side members, wherein the top member, bottom member, and the plurality of side members define an interior of the enclosure; a door frame defined by at least one of the side members, the door frame having a plurality of interconnected horizontal and vertical wires that define an opening for an animal to pass therethrough and enter or exit the interior of the enclosure; a door formed by a plurality of interconnected horizontal and vertical wires, the door being movable laterally between an open position and a close position relative to the door frame, wherein the opening is accessible in the open position and inaccessible in the close position; a first vertical wire and a second vertical wire of the plurality of vertical wires of the door, the first vertical wire and the second vertical wire being spaced from one another such that the first vertical wire is at a first end of the door and the second vertical wire is at a second end of the door; a first guide wire and a second guide wire coupled near a top end of the door frame and a third guide wire and a fourth guide wire coupled near a bottom end of the door frame; and a plurality of mechanisms releasably coupling the door to the door frame in the close position, where one of the plurality of mechanisms is pivotably coupled to the door and a second of the plurality of mechanisms is affixed to the door frame; wherein, a first end of the first vertical wire is coupled to and moves along the first guide wire between the open and close positions, and a second end of the first vertical wire is in contact with the third guide wire in the open and close positions; further wherein, a first end of the second vertical wire is coupled to and moves along the second guide wire between the open and close positions, and a second end of the second vertical wire is in contact with the fourth guide wire in the open and close positions.
In one example, the one of the plurality of mechanisms comprises a latch pivotably coupled to the door, the latch including a latching mechanism that is releasably coupleable to one of the plurality of horizontal wires of the door frame in the close position; wherein, the latching mechanism is releasably coupleable to the one horizontal wire of the door frame at any location along its length such that the door is disposable relative to the door frame in the open position, the close position, or any position therebetween. In a second example, the second of the plurality of mechanisms comprises a catch member coupled to the frame, the catch member defining an opening for receiving an end of one of the plurality of horizontal wires of the door in the close position.



BRIEF DESCRIPTION OF THE DRAWINGS
The above-mentioned aspects of the present invention and the manner of obtaining them will become more apparent and the invention itself will be better understood by reference to the following description of the embodiments of the invention, taken in conjunction with the accompanying drawings, wherein:
FIG. 1 is a perspective view of a wire crate;
FIG. 2 is a perspective view of a door frame and door of the wire crate of FIG. 1;
FIG. 2A is an enlarged perspective view of a first door stop mechanism of the door frame of FIG. 2;
FIG. 3 is a perspective view of a first side member of the wire crate of FIG. 1 with the door in the close position;
FIG. 3A is an enlarged perspective view of a latch assembly of the wire crate of FIG. 1 disposed in a latched position;
FIG. 4 is a perspective view of the first side member of FIG. 3 with the door in a partially open position;
FIG. 4A is an enlarged perspective view of the latch system of FIG. 3A in a partially unlatched position;
FIG. 5 is a perspective view of the wire crate of FIG. 1 in a collapsed position;
FIG. 6 is a perspective view of another wire crate;
FIG. 7 is a perspective view of a door frame and door of the wire crate of FIG. 6;
FIG. 7A is a partial enlarged perspective view of the door frame and door of FIG. 7;
FIG. 8 is a perspective view of a door frame and door of FIG. 7 in a close position;
FIG. 8A is a partial enlarged perspective view of the door frame and door of FIG. 7; and
FIG. 9 is a perspective view of the door frame and door of FIG. 7 in an open position.



Corresponding reference numerals are used to indicate corresponding parts throughout the several views.
DETAILED DESCRIPTION
The embodiments of the present invention described below are not intended to be exhaustive or to limit the invention to the precise forms disclosed in the following detailed description. Rather, the embodiments are chosen and described so that others skilled in the art may appreciate and understand the principles and practices of the present invention.
The present invention relates to a collapsible wire crate. The wire crate can be used for multiple purposes, such as to contain an animal or for storing an object. The crate can be made of any size for accommodating an object of any size. In addition, the crate can be made of different materials including aluminum, plastic, and steel.
Referring to FIG. 1, an exemplary embodiment of a crate 100 is shown. The crate 100 can be formed of substantially horizontal and vertical wires that overlap one another to define an interior portion. One or more of the horizontal wires can be coupled to one or more of the vertical wires, and vice versa, to add structural integrity to the crate 100. For instance, the wires may be welded, adhered, fastened, or coupled to one another through a variety of means. The crate 100 can include a top member 102, a bottom member 104, a front member 106, and a back member 108. The crate 100 can further include a first side member 110 and a second side member 112, where the first side member 110 is oppositely disposed from the second side member 112. The dimensions of each member can vary to accommodate the size of any animal, for example. In an upright, fully assembled orientation or position, the top member 102, bottom member 104, front member 106, back member 108, first side member 110, and second side member 112 can define an interior of the crate 100 which is sized to receive and accommodate an animal or other object, as desired.
In one aspect, the front member 106, back member 108, top member 102, and bottom member 104 can form a continuous structure. In other words, these members can be fixedly attached to one another. Alternatively, the top member 102, bottom member 104, first side member 110, and second side member 112 can form a continuous structure such that the top member 102 and bottom member 104 are affixed to the first side member 110 and second side member 112. In a different aspect, each member may be removably coupled to one another such that the different members are removably coupled to one another.
Each of the top member 102, bottom member 104, front member 106, back member 108, first side member 110, and second side member 112 can be formed by a plurality of overlapping horizontal and vertical wires or rods. The number of horizontal and vertical wires as well as the spacing therebetween can vary. If a smaller animal is being contained in the crate 100, the spacing may be desirably smaller than if a larger animal is being contained.
In FIG. 1, the first side member 110 of the crate 100 can define a door frame which includes corresponding structure for accommodating a door 114. The door 114 can also be made of substantially overlapping horizontal and vertical wires as shown in FIG. 1. Further, the door 114 can be movably disposed between an open position and a close position. In the open position, i.e., in FIG. 2, the first side member 110 defines an opening 204 (FIG. 2) that provides access to the interior of the crate 100.
As shown in FIGS. 1 and 2, the door 114 can move between the close position (FIG. 1) and the open position (FIG. 2) by moving the door 114 in a lateral direction identified by arrow 200 in FIG. 2. In this manner, the door 114 is disposed in a plane, and as the door moves between the open and close positions, the door 114 remains in the plane. The door 114 can move relative to the first side member 110 along a first horizontal wire 206 and a second horizontal wire 208. The first horizontal wire 206 and the second horizontal wire 208 can also be referred to as guide wires. In FIG. 2, the first horizontal wire 206 is disposed near the top edge of the first side member 110 and the second horizontal wire 208 is disposed near the bottom edge of the first side member 110.
The first horizontal wire 206 and second horizontal wire 208 may be offset in a direction opposite the interior of the crate from the first side member 110 by a distance sufficient to allow the door 114 to be slidably coupled to the first horizontal wire 206 and second horizontal wire 208. Stated another way, the first side member 110 can include an outer frame wire 210 that is continuous about the four edges of the first side member 110. The outer frame wire 210 can be defined in a first plane. The first horizontal wire 206 and second horizontal wire 208 can be at least partially disposed offset from the first plane such that both wires are disposed in a second plane, where the second plane is substantially parallel to the first plane. The spacing between the first plane and second plane can allow the door 114 to move along the first horizontal wire 206 and second horizontal wire 208 without contacting or being interfered by the other horizontal and vertical wires of the first side member 110 while being sufficiently close to side member 110 to restrict access into or out of the interior of crate 100 when the door 114 is in the close position.
Referring to FIG. 2, while the first horizontal wire 206 and second horizontal wire 208 are offset or spaced from the outer frame wire 210, both wires can be coupled at each respective end to the outer frame wire 210. For instance, the first horizontal wire 206 can be coupled at one end 212 and at an opposite end 214 to the outer frame wire 210. Similarly, the second horizontal wire can be coupled at one end 216 and at an opposite end 218 thereof to the outer frame wire 210. The wires can be coupled to the outer frame wire 210 by means of welding, adhesive, a fastener or coupler, press-fit (e.g., the horizontal wire can wrap around the outer frame wire 210 to form a press-fitting), or any other known means.
To offset both horizontal wires from the outer frame wire, the first horizontal wire 206 can include a first transverse bend 220 defined in the wire 206 near its first end 212 and a second transverse bend 222 near its second end 214. The bends at each end of the first horizontal wire 206 allows a substantial portion of the length of the wire 206 to be offset from the first plane defined by the outer frame wire 210 while remaining close enough to side panel 110 to restrict access into or out of the crate 100 when door 114 is in the close position. This, in effect, allows the door 114 to move about this substantial portion of the first horizontal wire 206 in a smooth manner. Likewise, the second horizontal wire 208 can include a first transverse bend 224 disposed near its first end 216 and a second transverse bend 226 disposed near its second end 218.
In the illustrated embodiments, the door 114 does not include any means for sliding or moving about the first horizontal wire 206 and second horizontal wire 208, (e.g., casters or wheels), but in other embodiments a mechanism to facilitate the movement along the wires (e.g., casters) may be included to assist with opening and closing the door 114. In the present embodiment, the material used for each wire, and in particular the wires that move relative to one another, can include properties that allow for a smooth opening and closing of the door 114. Alternatively, a supplemental material may be disposed along the horizontal wires 206, 208 to further accommodate movement of the door 114 relative thereto.
The first side member 110 may also include a first door stop mechanism 202 and a second door stop mechanism 203, as shown in FIG. 2. The first and second door stop mechanisms 202, 203 can be partially formed by a vertical wire 228 that is coupled to outer frame wire 210 near a top portion 254 and bottom portion 252, respectively, of the first side member 110. In FIG. 2A, the vertical wire 228 can be coupled to the outer frame wire 210 at a first location 236 and to a different horizontal wire 234 of the first side member 110 at a second location 238. Each of the first location 236 and second location 238 are locations along the length of the vertical wire 228 and each is spaced from the other by a defined distance. Between the first location 236 and the second location 238, the vertical wire 228 includes a protruding portion 232 that can function as a door stop member. The protruding portion 232 can include a substantially U-shaped structure that protrudes by at least a distance in which the wire 228 at least partially passes through the second plane created by the offset portions of the horizontal wires 206, 208.
Similarly, the second door stop mechanism 203 can also be formed by the vertical wire 228 that is coupled to outer frame wire 210 near the bottom of the first side member 110. The vertical wire 228 can be coupled to the outer frame wire 210 at a first location 252 and to a horizontal wire 250 of the first side member 110 at a second location 260. Each of the first location 252 and second location 260 are locations along the length of the vertical wire 228 and each is spaced from the other by a defined distance. Between the first location 252 and the second location 260, the vertical wire 228 includes a protruding portion that can function as a door stop member. The protruding portion can include a substantially U-shaped structure that protrudes by at least a distance in which the wire 228 at least partially passes through the first plane and the second plane created by the offset portions of the horizontal wires 206, 208.
Further, the first door stop mechanism 202 and the second door stop mechanism 203 can be coupled to the horizontal wires 206 and 208, respectively. For example, the protruding portion 232 of the first door stop mechanism 202 can be coupled to the horizontal wire 206 at the point of intersection 233. Coupling the protruding portion 232 to the horizontal wire 206 can improve the structural integrity of the horizontal wire 206 while reducing deflection between the horizontal wire 206 and the protruding portion 232 of the first door stop mechanism 202. By reducing the deflection between the protruding portion 232 and the horizontal wire 206, the first door stop mechanism 202 can restrict or limit the door 114 from opening further than desired. Likewise, the protruding section of the second door stop mechanism 203 can similarly be coupled to the horizontal wire 208 in the same manner as the first door stop mechanism 202. The first and second door stop mechanisms 202, 203 create two points of contact that simultaneously restrict or limit the door 114 from moving further than desired, or stated another way, define the distance or amount by which the door 114 opens.
In this manner, the first door stop mechanism 202 and second door stop mechanism 203 can restrict movement of the door 114 from opening beyond a certain distance via interference between the door 114 and the first side member 110. The first door stop mechanism 202 and second door stop mechanism 203 can be positioned along the same vertical member 228 to ensure both door stop mechanisms 202, 203 contact the door 114 at about the same time. The door stop mechanisms 202, 203 may restrict the door 114 from opening further than desired by contacting hooks 240 and 242 when the door is in the fully open position 200. The door stop mechanisms 202, 203 may also be used to restrict the door 114 from closing farther than desired when contacted by hooked ends 246 and 248 of the door 114 as shown in FIG. 3 while a first vertical wire 230 of the door 114 simultaneously contacts a side stop member 306.
First door stop mechanism 202 and second door stop mechanism 203 can be formed in the first side member 110 at any desired location along any vertical wire of the first side member 110 in a manner that necessarily restricts movement of the door 114 when the door 114 is either opened or closed to a desired position. In FIGS. 1 and 2, the first door stop mechanism 202 and the second door stop mechanism 203 are disposed near the center of the first side member 110 such that when the door 114 is in the open position, the width of the defined opening 204 occupies about half of the entire width of the first side member 110 and when the door 114 is closed, the latch assembly 300 is positioned to allow latch member 304 to be positioned on the outer edge of side stop member 306 (i.e. to the side nearest the outer frame wire 210). This is only one embodiment, however, and this disclosure is not intended to be limited to the illustrated embodiments. One skilled in the art would understand how a plurality of different locations could be used to implement the door stop mechanisms 202, 203 or use different horizontal wires on the first side member 110 to restrict and facilitate movement of the door 114 between the open and close positions.
To accommodate movement along the first horizontal wire 206 and second horizontal wire 208, the door 114 can include at least a first vertical wire 230 and a second vertical wire 244. The first vertical wire 230 can be disposed at one end of the door 114 and the second vertical wire 244 can be disposed at an opposite end thereof. For instance, in FIG. 2, the first vertical wire 230 is disposed near the rightside of the door 114 and the second vertical wire 244 is disposed near the leftside of the door 114. Other variations are possible, however, and the door 114 can include additional vertical wires that facilitate movement along direction 200.
The first vertical wire 230 can include a first end 240 and a second end 242. The first end 240 can form a hooked end that slidably engages the first horizontal wire 206. Likewise, the second end 242 can form a hooked end that slidably engages the second horizontal wire 208. The hooked ends 240, 242 define an opening that is appropriately sized such that the first and second horizontal wires can fit therein. Moreover, the sized openings are sufficiently large to allow for smooth movement of the hooked ends 240, 242 relative to the first and second horizontal wires 206, 208. Similarly, the second vertical wire 244 can include a first end 246 and a second end 248. The first end 246 can form a hooked end that slidably engages the first horizontal wire 206 and the second end 248 can form a hooked end that slidably engages the second horizontal wire 208. The hooked ends 246, 248 can also define openings sufficiently sized to allow for smooth movement of the hooked ends 246, 248 relative to the first and second horizontal wires 206, 208.
Referring to FIGS. 1-3, the hooked ends 240, 242, 246, 248 can be modified extensions of the vertical wires 230, 244 that form the vertical ends of the door 114. These hooked ends may be positioned to ensure the door 114 maintains a substantially planar orientation that is parallel to the side member 110 but allows the door to slide horizontally along the first horizontal wire 206 and second horizontal wire 208. Moreover, the hooked ends 240, 242 of the first vertical wire 230 may contact the door stop mechanisms 202, 203 when the door 114 reaches its fully open position (e.g., FIG. 2) and the hooked ends 246, 248 of the second vertical wire 244 may contact the door stop mechanisms 202, 203 when the door 114 reaches its fully close position (e.g., FIGS. 1 and 3).
Turning to FIGS. 2-4, the first side member 110 and door 114 can form a latch assembly 300 for securely maintaining the door 114 in the close position (e.g., FIG. 3). The latch assembly 300 can include a contact member 310 and a latch member 304 that are coupled to the door 114. The latch member 304 can be formed by a single wire that is bent in a plurality of locations and then is coupled to a vertical wire 302 of the door 114 at a first location 308 and a second location 312. The latch member 304 may also be coupled to the first vertical wire 230 at a third location 402 and a fourth location 404. The latch member 304 can be spaced from the vertical wire 230 such that a gap or space d is defined therebetween to allow the side stop member 306 to be located in this defined gap or space d when the door 114 is in the close position (FIG. 3). The manner in which the latch member 304 is coupled to the door 114 can be via welding, adhesive, fastener, or other known means to the skilled artisan. The contact member 310 can be coupled to the latch member 304 in any of a plurality of manners. For instance, the contact member 310 can be a substantially solid, flat piece of material that can be bent around an upper and lower portion or wire of the latch member 304 to form a press-fit coupling. The contact member 310 may also be welded, adhered, fastened, or coupled in other known ways. Moreover, the latch member 304 or contact member 310 may be coupled to a horizontal wire 320 of the door 114 for further rigidity and support of the latch assembly 300.
The latch assembly 300 may also include a portion formed on the first side member 110. In particular, the first side member 110 can include a vertical wire 314 that defines at least one side of the opening 204 (see FIG. 2). A first support wire 316 and a second support wire 318 can be horizontally disposed along the first side member 110 such that each support wire is coupled at one end to the vertical wire 314 and at an opposite end thereof to the outer frame wire 210 (see FIG. 4A). In addition, the latch assembly 300 further includes a side stop member 306 which can be formed by a single wire. The side stop member 306 can be coupled to the first support wire 316 near one end and to the second support wire 318 near an opposite end thereof. The side stop member 306 can be welded, adhered, fastened, bent in a press-fit coupling, or coupled in any other known manner to the support wires. The side stop member 306 can form a substantially U-shaped member except at each respective end where the side stop member 306 is coupled to the support wires.
In order to secure the door 114 to the first side member 110 in the close position, the door 114 can be moved laterally in a direction 200 towards the side stop member 306. In FIG. 4, for example, the door 114 is shown partially opened. To reach the close position, the latch member 304 and contact member 310 can be pressed inwardly towards the interior of the crate 100 while simultaneously moving the door 114 towards the side stop member 306. In doing so, the latch member 304 can move laterally to the opposing side of the side stop member 306 (i.e., to the side nearest the outer frame wire 210). When the force applied to the contact member 310 and latch member 304 is released, the latch member 304 may become disposed at a location opposite the side stop member 306 as the first vertical wire 230 contacts or engages the side stop member 306. The latching engagement of the latch member 304 and side stop member 306 can prevent the door 114 from moving or sliding to the open position (FIG. 2).
To open the latched door 114, the latch member 304 can be disengaged from the side stop member 306 by applying a force inwardly against the contact member 310 or latch member 304 while subsequently moving or sliding the door 114 along direction 200 away from the side stop member 306. While the contact member 310 is moved inwardly due to the applied force, the latch member 304 may pass behind (i.e., towards the interior of the crate 100) the side stop member 306 as the door 114 moves towards the open position. Once the latch member 304 passes by and clears the side stop member 306 (i.e. the door 114 is in a partially opened position 400), the inwardly applied force can be released and the door 114 may simply be moved in either the open or closed direction 200. The latch assembly 300 described in this embodiment is not exhaustive and should not limit its application. Many latches used in the industry such as a hook and loop, a sliding member, a wedge and spring etc. should be considered as incorporated herein.
This, of course, allows the side door 114 to be opened in such a way that the door 114 is out of the way and does not interfere with accessing the interior of the crate. In addition, the side door 114 does not swing open and risk scratching, denting, or damaging nearby objects such as walls, furniture, etc. When the side door 114 is opened, the opening 200 defined in the first side member 110 allows for access to the interior of the crate 100.
While one particular embodiment has been described utilizing a sliding door located on the first side member 100, it is to be understood that any of the top member 102, front member 106, back member 108, or second side member 112 could include a similar door and latch assembly. Moreover, one or more doors may be configured in one or more of the members so that access to the interior of the crate 100 is possible via two or more doors. In addition, the particular orientation of the different wires and direction of moving the respective door should not limit this disclosure. For instance, one skilled in the art could understand from this disclosure that a wire crate could be designed with at least one door moves vertically instead of horizontally and in any direction between. Therefore, this disclosure should be seen to encompass the plurality of door member locations and door movement directions that could be used by applying the present disclosure.
Referring to FIG. 5, the crate 100 can be easily collapsed into a compact position 500. This can enable the crate 100 to be portable, for example, in a vehicle or airplane. Moreover, the crate 100 can be easily stored in a box, carton, travelling bag, or other storage means while in the compact position 500. The crate 100 can be assembled from the collapsed or compact position 500 to an upright, assembled position as shown in FIG. 1. To do so, the bottom member 104 can be disposed on a flat surface. In this position, the front member 106 is on top with the top member 102 directly beneath the front member 106. The back member 108 can be positioned beneath the top member 102. As shown in FIG. 1, the front member 106 can be hingedly or pivotally coupled to the top member 102 via a plurality of hooks 116 engaging an outer frame wire 122 of the top member 102. Similar to the outer frame wire 210 of the first side member 110, the outer frame wire 122 of the top member 102 is an outermost, single wire that forms the dimensions of the top member 102. Like the front member 106, the back member 108 can include a plurality of hooks 124 that engage the outer frame wire 122 of the top member 102.
The front member 106 can also include a plurality of vertical wires having hooked ends 120 (FIG. 1) that overlap a horizontal wire 118 of the bottom member 104. In this arrangement, the front member 106 can be disengaged from the top member 102 by disengaging the plurality of hooks 116 from the outer frame wire 122 and pivoting the front member 106 about the horizontal wire 118 of the bottom member. In this manner, the front member 106 is removably coupled to the top member 102 and pivotally coupled to the bottom member 104. The back member 108 can include similar hooked ends for engaging a horizontal wire on the bottom member 104 such that it is similarly coupled to the top member 102 and bottom member 104 as the front member 106.
Thus, based on the connections between the front member 106 and back member 108 relative to the top member 102 and bottom member 104, the crate 100 can be assembled to its upright position of FIG. 1 by pivoting the front member 106 about the horizontal wire 118 of the bottom member 104 and then lifting the top member 102. The top member 102 can be lifted to a position so that the back member 108 can be pivoted about the bottom member 104 to a substantially upright position. Once the front member 106 and back member 108 are pivoted to substantially upright positions, the plurality of hooks 116 on the front member 106 and plurality of hooks 124 on the back member 108 can be engaged to the outer frame wire 122 of the top member 102 to complete the assembly of the crate 100.
To collapse the crate 100 from the upright position of FIG. 1 to the collapsed or compact position 500 of FIG. 5, the steps above can be reversed. Namely, the front member 106 and back member 108 can be disengaged from the top member 102. One of the front member 106 and back member 108 can be pivoted relative to the bottom member 104 and disposed in a position above the bottom member 104. The first side member 110 and second side member 112 can pivot relative to the top member 102 and bottom member 104 and collapse on top of the previously collapsed front member 106 or back member 108. The uncollapsed front member 106 or back member 108 can then be folded on top of the other members to fully collapse the crate to its compact position 500.
In the previously described embodiment, the front and back members can be removably coupled to the top member 102. In another embodiment, the front and back members can be removably coupled to the bottom member 104. Moreover, the first side member 110 and second side member 112 are pivotally coupled to the top member 102 and bottom member 104 to form a continuous structure. In an alternative embodiment, however, the front and back members can be pivotally coupled to the top and bottom members to form a continuous structure. In this alternative embodiment, the first side member 110 and second side member 112 can be removably coupled to one of the top member 102 and bottom member 104 so that the crate 100 can be collapsed to its compact position 500 of FIG. 5. In yet another alternative embodiment, each of the front member 106, back member 108, first side member 110, and second side member 112 can be removably coupled to the top member 102 and bottom member 104. Here, each of the six members can be completely disengaged from one another and stacked on top of one another to form a compact structure. Or, the top member 102 and bottom member 104 can be removably coupled to one of the front member 106, back member 108, first side member 110, and second side member 112 and the front member 106, back member 108, first side member 110, and second side member 112 can form a continuous structure.
In a similar embodiment, the first side member 110 and second side member 112 can be folded inwardly on top of the bottom member 104. In this configuration, the front member 106, top member 102, and back member 108 are collapsed on top of the first side member 110 and second side member 112. The first side member 110 and second side member 112 can be hingedly or pivotally coupled to the bottom member 104 to accommodate this means for collapsing the crate 100. These members can be removably coupled or fixedly coupled to the bottom member 104. As such, in another related embodiment, it can be possible for the top member 102, front member 106, and back member 108 to first collapse on top of the bottom member 104 and then for the first side member 110 and second side member 112 to fold on top thereof, with either the first side member 110 or second side member 112 resting on top of the other.
As another method for assembling the crate from the collapsed position, the top member 102 can be lifted away from the front member 106 to a position in which the top member 102 is substantially parallel and directly above the bottom member 104. In this position, the front member 106 and back member 108 are substantially upright and parallel to one another. Once the top member 102, front member 106, and back member 108 are arranged in their upright positions, the first side member 110 and second side member 112 can be assembled. In one exemplary embodiment, the first side member 110 can be latched to the second side member 112 via a hook or other fastener (not shown), and to assemble, the two side members are disengaged from one another. The first side member 110 can then be raised to an upright position. The first side member 110 can be coupled to the top member 102 in a plurality of ways including as previously described. For instance, one such way is by aligning hooks which extend outward from the first side member 110 with an end wire on the top member 102. Clips or other fasteners may also be used for coupling the first side member 110 to the top member 102 and/or the front member 106 and back member 108.
Similarly, the second side member 112 can be lifted from its collapsed position to an upright position. In its upright position, the second side member 112 can be coupled to the top member 102 by aligning hooks near the top edge of the member with an end wire of the top member 102. Clips or other fasteners may be used to further couple the second side member 112 to the top member 102 and/or front member 106 and back member 108. The members may be coupled in other ways known to the skilled artisan. For instance, in another embodiment, the top member 102 can include hooks that engage the first side member 110 and second member 112.
Referring to FIG. 6, another embodiment of a crate 600 is shown. The crate 600 can be formed of substantially horizontal and vertical wires that overlap one another to define an interior portion. One or more of the horizontal wires can be coupled to one or more of the vertical wires, and vice versa, to add structural integrity to the crate 600. For instance, the wires may be welded, adhered, fastened, or coupled to one another through a variety of means. The crate 600 can include a top member 602, a bottom member 604, a front member 606, and a back member 608. The crate 600 can further include a first side member 610 and a second side member 612, where the first side member 610 is oppositely disposed from the second side member 612. The dimensions of each member can vary to accommodate the size of any animal, for example. In an upright, fully assembled orientation or position, the top member 602, bottom member 604, front member 606, back member 608, first side member 610, and second side member 612 can define an interior of the crate 600 which is sized to receive and accommodate an animal or other object, as desired.
In one aspect, the front member 606, back member 608, top member 602, and bottom member 604 can form a continuous structure. In other words, these members can be fixedly attached to one another. Alternatively, the top member 602, bottom member 604, first side member 610, and second side member 612 can form a continuous structure such that the top member 602 and bottom member 604 are affixed to the first side member 610 and second side member 612. In a different aspect, each member may be removably coupled to one another such that the different members are removably coupled to one another. In the illustrated example of FIG. 6, a plurality of clips 622 can be used to fasten or couple the top member 602 to the front member 606 and the back member 608. Similar clips or fasteners can be used to couple the other members of the crate 600.
Each of the top member 602, bottom member 604, front member 606, back member 608, first side member 610, and second side member 612 can be formed by a plurality of overlapping horizontal and vertical wires or rods. The number of horizontal and vertical wires as well as the spacing therebetween can vary. If a smaller animal is being contained in the crate 600, the spacing may be desirably smaller than if a larger animal is being contained.
In FIG. 6, the first side member 610 of the crate 600 can define a door frame which includes corresponding structure for accommodating a door 614. The door 614 can also be made of substantially overlapping horizontal and vertical wires as shown in FIG. 6. Further, the door 614 can be movably disposed between an open position and a close position. In the open position, i.e., in FIG. 9, the first side member 610 defines an opening 902 that provides access to the interior of the crate 600.
The crate 600 can further include a latch assembly 616 pivotably coupled to the door 614 to be releasably coupled to the first side member 610 to maintain or latch the door 614 in a close position 800. The first side member 610 can form a portion of a door frame for the door 614, and as shown in FIG. 6 can be formed by a plurality of horizontally and vertically disposed wires.
The front member 606 can be offset or spaced from the bottom member 604 to define a slot or opening 618 therebetween. In this manner, a pan (not shown), tray, pet bed, blanket or other apparatus can be slidably positioned above the bottom member 604 in the opening 618. In this manner, an animal being contained within the crate 600 can rest on a more comfortable pet bed, comforter, tray, pan, etc. In the embodiment of FIG. 6, the first side member 610 and the second side member 612 can include support wires 620 disposed in connection with the bottom member 604 to prevent the pet bed (not shown) from shifting laterally from the confined space. The back member 608 can also include similar support wires 620 to further position the pet bed, tray, pan, etc. within the defined opening 618. In this configuration, the pan, bed, tray, etc. may only be positioned within the defined opening 618 in the front member 606. Although not shown, the crate 600 can further include a latch or other mechanism to prevent the bed, pan, tray, etc. from sliding or moving out of position via the opening 618 (i.e., due to movement of the animal inside the crate).
In FIG. 7, the first side member 610 and door 614 are shown in greater detail. The first side member 610 can form a door frame for the door 614 such that the door 614 is slidably coupled thereto. As described above and shown in the illustrated embodiment of FIG. 7, the door 614 can be formed by a plurality of interconnected horizontal and vertical wires. For instance, the door 614 can include a first horizontal wire 700 that extends from one end of the door 614 to the other end. The first horizontal wire 700 can include a bent end 702 as shown. The bent end 702 can have a degree of elasticity such that it can be elastically moved inward and outward (i.e., towards and away from the first side member 610.
The first side member 610 can include a catch member 704 formed by a single, oval-shaped wire. The catch member 704 defines an opening therein that can receive the bent end 702 of the first horizontal wire 700 in a latched position. The bent end 702 can bias outwardly away from the first side member 610 such that when positioned in the defined opening of the catch member 704, the catch member 704 can substantially restrain or hold the bent end 702 in a position to prevent the door 614 from easily being slid or moved from the close position 800.
The door 614 can also include a first vertical wire 706 and a second vertical wire 708. The first vertical wire 706 and the second vertical wire 708 are disposed at opposite ends of the door 614, where the bent end 702 of the first horizontal wire is coupled to the first vertical wire 706. In one aspect, the bent end 702 can be coupled near or at the midpoint or center of the first vertical wire 706. The first vertical wire 706 includes two ends, with a first end 714 forming a curled end and the second end 716 being substantially straight. Similarly, the second vertical wire 708 includes two ends, with a first end 710 forming a curled end and the second end 712 being substantially straight.
To accommodate the sliding or lateral movement of the door 614 relative to the first side member 610, the first side member 610 can include a plurality of tracks or guides. For example, in FIG. 7, the first side member 610 can include a first guide member 718, a second guide member 720, a third guide member 722, and a fourth guide member 724. As shown in both FIGS. 7 and 7A, the first guide member 718 and the second guide member 720 are formed as substantially oval or looped shaped structures. The first guide member 718 can define a first guide opening 726 and the second guide member 720 can define a second guide opening 728. Although not shown, the third guide member 722 and fourth guide member 724 can also form similar defined guide openings therein. These oval-shaped structures, however, are only shown as illustrative examples. The guide members can be bent, curved, or otherwise formed to provide guide wires, tracks, channels, openings, etc.
Each guide opening has a first end and a second end defined by the respective guide member. In FIG. 7A, for example, the first guide member 718 has an end 730 that defines one end of the guide opening 726. Likewise, the second guide member 720 has an end 732 that defines one end of the guide opening 728. The respective ends 730, 732 can abut one another such that both guide members 718, 720 are in contact with one another or are spaced from one another such that a gap exists between each respective end 730, 732. In this manner, the length of travel of the door 614 can be defined by the distance between the respective ends of the guide openings (i.e., the travel distance along the first guide member 718 is defined between ends 908 and 730, and the travel distance along the second guide member 720 is defined between ends 910 and 732).
As also shown in the illustrative embodiments of FIGS. 6-9, the first guide member 718, the second guide member 720, the third guide member 722, and the fourth guide member 724 can each be formed by a single wire. As such, each wire can be bent, curled, or otherwise formed to define how the door 614 moves laterally with respect to the first side member 610.
As shown in FIGS. 7 and 7A, the first end 714 of the first vertical wire 706 forms a loop or curled end such that the first end 714 is coupled to the first guide member 718. Likewise, the first end 710 of the second vertical wire 708 forms a loop or curled end that is coupled to the second guide wire 720. The first ends of both vertical wires can slide relative to the first guide member 718 and second guide member 720 to allow the door 614 to move between the close position 800, an open position 900, and any position therebetween.
The first vertical wire 706 can have a length such that the second end 716 thereof protrudes through the defined opening of the third guide member 722. Similarly, the second vertical wire 708 can have a length such that the second end 712 can protrude through the defined opening of the fourth guide member 724. In this configuration, an animal cannot push the door 614 outward due to the interference created by the second ends of both vertical wires being at least partially captured in the defined openings of both guide members.
While the guide members are shown as forming loop or oval like structures, this is only illustrated as one example. In other examples, the first and second guide members can be single, substantially straight wires along which the first ends of both vertical wires slide. The third and fourth guide members may also be a single wire that is disposed outwardly from the first side member 610 such that the second ends of both vertical wires is disposed between respective guide wire and the first side member 610. Other tracks, channels, guides, etc. can be used to facilitate substantially linear movement of the door 614 relative to the first side member 610.
In the illustrated embodiments of FIGS. 8, 8A, and 9, the latch 616 is shown as being released or decoupled from the first side member 610 to further facilitate movement of the door 614 relative to the first side member 610. The latch 616 can include a first end 814 and a second end 816 that are pivotally coupled to the first horizontal wire 700 of the door 614. The second end 816 of the latch 616 can further include a latching mechanism 806 in the form of a bend or curve in a wire. In FIG. 9, the latch 616 and latching mechanism 806 are shown as being formed by a single wire. The single wire can include a first bend 912, a second bend 914, and a third bend 916. The first bend 912 can be defined at approximately the same location along the single wire as the second end 816, where the latch 616 is pivotably coupled to the first horizontal wire 700 of the door 614.
In the close position 800 of FIGS. 7 and 8, a horizontal wire 804 of the first side member 610 can be coupled or latched by the latching mechanism 806. Here, the second bend 914 can define an opening for receiving the horizontal wire 804 of the first side member 610 or door frame. The latching mechanism 806 can prevent or limit movement of the door 614 in the lateral direction when the latching mechanism 806 engages or couples to the horizontal wire 804. To release the latching mechanism 806, the latch 616 is pivoted to the position 802 shown in FIG. 8, whereby the latching mechanism 806 is clear and no longer coupled to the horizontal wire 804.
Once the latching mechanism 806 is decoupled from the horizontal wire 804, the door 614 can be moved from the close position 800 by also releasing or decoupling the bent end 702 of the first horizontal wire 700 from the catch member 704. As shown in FIG. 8A, the catch member 704 can be a single wire coupled to a first support wire 808 and a second support wire 812 of the first side member 610. As shown, the first and second support wires can be substantially horizontal wires to which the catch member 704 can be welded, fastened, adhered, or coupled in other known ways. The catch member 704 can define an opening 810 through which the bent end 702 is disposed in the close position 800. Since the bent end 702 can be elastically biased or deformed away from the door 614 to thereby latch or couple to the catch member 704, to move the door 614 from the close position 800 the bent end 702 can be pushed inward to release or disengage the door 614 from the catch member 704.
Referring to FIG. 9, the door 614 is shown in the open position 900. In this position, an opening or access 902 is defined between the door 614 and the first side member 610. The size of the opening or access 902 can be varied by moving the door 614 in the direction indicated by arrow 906. In addition, the latch 616 remains in a pivot position 904 to prevent the latching mechanism 806 from engaging the horizontal wire 804 of the first side member 610. Since each of the plurality of vertical wires of the first side member 610 is spaced, the door 614 can be moved to and maintained in a partially open position by coupling the latching mechanism 806 with the horizontal wire 804 at approximately any location along its length between any two of the plurality of vertical wires that form the first side member 610.
As described above and also shown in FIG. 9, the first guide member 718 can be formed by a single wire. The first end 714 of the first vertical wire 706 can move along the first guide member 718, and the length of travel can be defined by the length of the first guide member 718. The first guide member 718 can include one end 730 and an opposite end 908 such that the first end 714 of the first vertical wire 706 can travel the length defined by the distance between the first end 730 and second end 908. Likewise, the second guide member 720 can be formed by a single wire having a length defined between a first end 732 and a second end 910. The distance between the first end 732 and the second end 910 can define the length of travel by the first end 710 of the second vertical wire 708. In one aspect, the lengths of the first guide member and the second guide member is about the same. In other words, the first ends of both vertical wires of the door 614 can travel about the same distance between the open and close positions. In other embodiments, the lengths may differ and thus the lateral movement of the door 614 is defined by the smaller of the two openings.
In another example, the third guide member 722 can define a length that is similar to or the same as the length of the first guide member 718. The fourth guide member 724 can have approximately the same length as the second guide member 720. In other examples, the lengths or opening sizes of the guide members may differ, and the guide member having the shortest of the lengths or opening sizes can define the travel distance of the door 614.
The crate 600 can also be collapsed into a collapsed position similar to that of FIG. 5. The crate 600 can also include a tray or pan that can be removably positioned or coupled to the crate.
While exemplary embodiments incorporating the principles of the present invention have been disclosed hereinabove, the present invention is not limited to the disclosed embodiments. Instead, this application is intended to cover any variations, uses, or adaptations of the invention using its general principles. Further, this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains and which fall within the limits of the appended claims.

## Claims

1. An animal crate, comprising:
a door frame having a plurality of interconnected horizontal and vertical wires that define an opening for an animal to pass therethrough and enter or exit the interior of the animal crate;
a door configured to move laterally between an open position and a dose position relative to the door frame, the door having a plurality of interconnected horizontal and vertical wires; and at least two mechanisms releasably coupling the door to the door frame in the close position, where one of the two mechanisms is pivotably coupled to the door and the second of the two mechanisms is affixed to the door frame;
a first wire of the plurality of horizontal wires of the door having a first end and a second end, the first end being elastically bent outwards away from interior of the animal crate;
wherein, the first end engages the second of the two mechanisms in the close position and maintains the door in the close position until the first end is disengaged from the second of the two mechanisms;
wherein, the first of the two mechanisms is releasably coupleable to any location along a length of one of the plurality of horizontal wires of the door frame such that the door is disposable relative to the door frame in the open position, the close position, or any position therebetween.

2. The animal crate of claim 1, wherein the first of the two mechanisms comprises a latch pivotably coupled to the door, wherein the latch is pivotable between a first position in which the latch is engaged with the one horizontal wire of the door frame and a second position in which the latch is disengaged from the one horizontal wire of the door frame.

3. The animal crate of claim 1, wherein the second of the two mechanisms comprises a catch member coupled to the frame, the catch member configured to engage the door only in the close position.

4. The animal crate of claim 1, further comprising:
a first vertical wire and a second vertical wire of the door, the first vertical wire and the second vertical wire being spaced from one another such that the first vertical wire is at a first end of the door and the second vertical wire is at a second end of the door; and
a first guide wire and a second guide wire coupled to the door frame;
wherein, the first vertical wire is coupled to and moves along the first guide wire between the open and close positions, and the second vertical wire is coupled to and moves along the second guide wire between the open and close positions.

5. An animal enclosure, comprising:
a top member, a bottom member, and a plurality of side members, wherein the top member, bottom member, and the plurality of side members define an interior of the enclosure;
a door frame defined by at least one of the side members, the door frame having a plurality of interconnected horizontal and vertical wires that define an opening for an animal to pass therethrough and enter or exit the interior of the enclosure;
a door formed by a plurality of interconnected horizontal and vertical wires, the door being movable laterally between an open position and a close position relative to the door frame, wherein the opening is accessible in the open position and inaccessible in the close position;
a first vertical wire and a second vertical wire of the plurality of vertical wires of the door, the first vertical wire and the second vertical wire being spaced from one another such that the first vertical wire is at a first end of the door and the second vertical wire is at a second end of the door;
a first guide wire and a second guide wire coupled near a top end of the door frame and a third guide wire and a fourth guide wire coupled near a bottom end of the door frame; and
a plurality of mechanisms releasably coupling the door to the door frame in the close position, where one of the plurality of mechanisms is pivotably coupled to the door and a second of the plurality of mechanisms is affixed to the door frame;
wherein, a first end of the first vertical wire is coupled to and moves along the first guide wire between the open and close positions, and a second end of the first vertical wire is in contact with the third guide wire in the open and close positions;
further wherein, a first end of the second vertical wire is coupled to and moves along the second guide wire between the open and close positions, and a second end of the second vertical wire is in contact with the fourth guide wire in the open and close positions.

6. The animal enclosure of claim 5, wherein the one of the plurality of mechanisms comprises a latch pivotably coupled to the door, the latch including a latching mechanism that is releasably coupleable to one of the plurality of horizontal wires of the door frame in the close position;
wherein, the latching mechanism is releasably coupleable to the one horizontal wire of the door frame at any location along its length such that the door is disposable relative to the door frame in the open position, the close position, or any position therebetween.

7. The animal enclosure of claim 5, wherein the second of the plurality of mechanisms comprises a catch member coupled to the frame, the catch member defining an opening for receiving an end of one of the plurality of horizontal wires of the door in the close position.

8. The animal enclosure of claim 5, further comprising:
a catch member coupled to the frame, the catch member configured to engage the door in the close position; and
a first wire of the plurality of horizontal wires of the door having a first end and a second end, the first end being removably engaged to the catch member in the close position.

9. The animal enclosure of claim 8, further comprising a latch pivotably coupled about the first wire of the door.

10. The animal enclosure of claim 5, wherein the catch member is coupled to the first support wire and the second support wire.

11. The animal enclosure of claim 5, further comprising:
a latch formed by a single wire having a first end and a second end, the first end forming a curled end and pivotably coupled to a horizontal wire of the door and the second end being bent and pivotably coupled to the horizontal wire; and
a latching mechanism formed by a bend in the second end of the single wire;
wherein, the latching mechanism is releasably coupleable to any location along the length of the one of the plurality of horizontal wires of the door frame to position the door in the open position, the close position, and any position therebetween.

12. The animal enclosure of claim 5, wherein the first guide wire and the second guide wire are bent to form guide openings.

13. The animal enclosure of claim 12, wherein the size of each guide opening is substantially the same.

14. The animal enclosure of claim 5, wherein:
the first vertical wire comprises a curled first end coupled to the first guide wire and a substantially straight second end; and
the second vertical wire comprises a curled first end coupled to the second guide wire and a substantially straight second end.

15. The animal enclosure of claim 5, wherein the third guide wire and the fourth guide wire are bent to form guide openings through which the first and second vertical wires, respectively, move through between the open and close positions.