JP2004313256A - Safety device of movable rack - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety device of a movable rack capable of performing the operation of releasing the restrained state of movement of the rack by a stopper by an extremely simple structure. <P>SOLUTION: A plurality of racks 10, movable along a trajectory R, are mounted, and the safety devices 20 are mounted between upper parts of adjacent racks 10. The safety device 20 comprises the stopper 21 disposed between the upper parts of the racks 10 and a string member 24 whose rear end side is connected to the stopper 21 and whose front end side is drawn out in the front of the racks. When the stopper is extended linearly, a passage P is formed between the racks, and the movement of the racks thereafter is restrained. On the other hand, the restraint on the movement of the racks can be released by pulling the string member 24. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a safety device for a movable rack, and more specifically, when a passage is formed between a plurality of racks movably provided along a track on a floor, the passage is inadvertently closed. The present invention relates to a safety device for a mobile rack having no components.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a plurality of moving racks are known in which tracks are arranged substantially parallel to each other on a floor surface of an office or the like, and are arranged so as to be movable along the tracks. The movable racks are arranged side by side in contact with or close to each other in order to make effective use of space, so that passages between the racks can be formed when storage objects are taken in and out.
[0003]
In such a movable rack, a lock device for inhibiting the operation of a handle for moving the rack is employed. However, since the lock device is operated manually, the operation is not actually performed. It is often left unattended. In such a case, there is a problem that the rack may be inadvertently moved in the passage closing direction due to an earthquake or the like while taking in and out a storage target object or reading a book or the like in the passage between the racks.
[0004]
Therefore, as shown in Patent Literature 1, there has been proposed a safety device in which a safety bar is disposed between upper portions of a movable rack, and the safety bar regulates an inadvertent movement of the rack.
[0005]
[Patent Document 1] Japanese Patent Publication No. 55-33885
[Problems to be solved by the invention]
However, in the safety device described in Patent Literature 1, the release of the state in which the safety bar is positioned so as not to block the passage between the moving racks is performed by the operation device provided on the front side of the moving rack. It is done through picking. Therefore, between the operation knob and the safety bar, a bar for unlocking, a link mechanism, and the like must be built in the rack, which disadvantageously complicates the rack structure. In addition, the configuration of Patent Document 1 has a restriction that the distance from the operation knob must be set to a minimum. Therefore, when a large number of moving racks are connected so as to become longer in the depth direction of the passage, the stopper function of the safety bar does not reach the moving racks in the depth direction, and the racks in the depth direction approach each other due to vibration or the like. As a result, there is an inconvenience that the safety when the worker is present in the area is not ensured.
[0007]
[Object of the invention]
The present invention has been devised in view of such inconvenience, and an object of the present invention is to provide a safety device for a movable rack capable of achieving an operation of releasing a rack movement restricted state by a stopper with a very simple configuration. Is to provide.
[0008]
Another object of the present invention is not to restrict the mounting position of the stopper, for example, when many racks are connected in a long state in the depth direction, the movement of each rack along the depth direction is totally restricted. It is an object of the present invention to provide a movable rack safety device capable of exerting an influence on a moving rack.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention relates to a safety device for a plurality of racks movable along a track arranged on a floor surface,
Including a stopper disposed between the upper part of the plurality of racks, and an operation member of the stopper,
The stopper extends substantially linearly when the rack is moved to form a passage between the racks, and restricts movement in the passage closing direction. On the other hand, the stopper is released in a direction to close the passage by releasing the restriction. Is provided so that it can be folded when it is moved,
The operation member has one end connected to the stopper, and the other end configured by a string-like member that can be taken out frontward or rearward of the rack,
The restriction on the movement of the rack by the stopper is released by pulling the other end of the string-shaped member. According to such a configuration, when the stopper extends substantially linearly, even if the opposing rack approaches, the stopper resists the compressive force and restricts the approach movement of the rack. On the other hand, if the stopper is slightly bent by pulling the operation member, a force in a direction in which the stopper is bent can be applied. Therefore, by operating the rack to approach in this state, the stopper can be rotated in the direction of naturally folding, and the rack can be approached to the position where the passage is closed. In addition, by adopting a string-shaped member as the operation member, it is possible to release the movement regulation by the stopper with an extremely simple configuration without using a rod or a link mechanism, and by adjusting the length of the operation member. In addition, it is possible to give a degree of freedom to the routing position or direction.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
In the present invention, a take-out member is disposed on the upper front end side or the upper rear end side of the rack, and the intermediate portion of the cord-like member is supported by the take-out member. By providing such a take-out member, when a passage is formed between opposing racks, the other end side of the string-shaped member can be hung at the upper middle part of the passage entrance, making it easy to operate. The string-shaped member can be located at the position.
[0011]
Further, the stopper has a first rod-shaped member rotatably supported by one rack in a cantilevered posture, and a second rod-shaped member rotatably supported by a cantilevered posture on the other rack opposed to the rack moving direction. A rod-shaped member, a connecting member for connecting the free ends of the first and second rod-shaped members to each other in a foldable manner, and a movement regulating position holding means provided between the first and second rod-shaped members. Including
The movement restricting position holding means is configured such that the first and second rod-shaped members include elastic members that can apply an attractive force to each other at positions where the first and second rod-shaped members extend substantially linearly. It is preferred to take. In such a configuration, in a state where the first and second rod-shaped members extend linearly, the state where the rod-shaped members are always kept in a linear state is continued unless a force for bending these rod-shaped members in the folding direction is applied. It is possible to effectively prevent the rack from moving in the passage closing direction due to inadvertent folding.
[0012]
Further, it is preferable that the first and second rod-shaped members are constituted by hollow pipes, and the movement restriction position holding means is disposed in the first and second rod-shaped members. As a result, the moving position holding means does not appear outside the first and second rod-shaped members, thereby maintaining good appearance and preventing positional interference with surrounding components. Becomes possible.
[0013]
Each of the racks may be provided with a handle for moving the rack along the track, and a lock device for the handle may be provided near the handle. By using such a lock device together, it is possible to more reliably prevent the rack from being accidentally moved. Further, even if the operation of the lock device is forgotten, the stopper can prevent the blockage.
[0014]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
FIG. 1 shows the entire configuration of a moving rack in a state where a passage is formed between some of the racks. In this figure, a plurality of racks 10 are movably supported on a track R arranged substantially parallel to each other on a floor surface of an office or the like. Although the rack 10 is not particularly limited, in the present embodiment, the rack 10 is disposed in an inner space surrounded by the front panel 11, the rear panel 12, the top plate 13, the lowermost shelf 14, and the panels 11 to 14. And the shelves 15 provided.
[0016]
Each of the racks 10 can be moved along the track R by rotating a handle 16 provided in the plane of the front panel 11. That is, although not shown here, a sprocket is provided on the rotation axis of the wheel rotating on the track R and a rotation axis of the handle 16 inside the front panel 11, and a chain is provided between these sprockets. The rack 10 can be moved according to the amount of rotation of the handle 16 by the connection. Here, a lock device 17 is disposed in the vicinity of the handle 16, and the lock device 17 can engage a chain (not shown) provided inside by operating the knob 18 in a predetermined manner. The rotation of the handle 16 is restricted.
[0017]
A safety device 20 is arranged between the upper portions of the racks 10. The safety device 20 has one end, that is, a rear end side, connected to an upper portion of the rack 10, that is, a stopper 21 disposed between the top plates 13, and an intermediate portion of the stopper 21; It is constituted by a cord-like member 24 as an operation member taken out via a take-out member 22 disposed between the front portions of the rack 10.
[0018]
As shown in FIGS. 2 to 6, the stopper 21 has a prism-like shape as a first rod-shaped member rotatable in a horizontal plane in a cantilever posture via a bearing means 25 on an upper portion of one of the opposed racks 10. A first hollow pipe 26, a second hollow pipe 27 as a second rod-like member similarly rotatably provided on the upper part of the other rack 10 via a bearing means 25, and a first and a second hollow pipe 27; And a hinge 29 as a connecting member for connecting the free end sides of the first and second hollow pipes 26 and 27 to each other. I have.
[0019]
The first and second hollow pipes 26 and 27 move in a direction substantially perpendicular to the front-rear direction when the rack 10 is moved in a direction away from each other to form a passage P between the racks 10, that is, the track. It extends substantially linearly in a direction substantially parallel to R and regulates movement in a direction to close the passage P. On the other hand, when the rack 10 is moved in a direction to close the passage P by releasing the regulation by pulling the front end side of the string-shaped member 21, the free end side is folded in the forward position. It is provided as possible.
[0020]
Further, the first hollow pipe 26 and the second hollow pipe 27 are provided with square holes 35 penetrating in the vertical direction at one end side which is the rotation center side thereof. In the first hollow pipe 26, a support shaft 36 penetrating through the inside of the pipe is fixed at a position slightly away from the square hole 35 to the free end side. On the other hand, the second hollow pipe 26 is provided with a fastener 40 composed of a bolt 37 and a nut 39 at a bottom portion slightly away from the square hole 35 on the free end side. The movement restricting position holding means 28 is disposed between them.
[0021]
As shown in FIG. 2, the movement regulating position holding means 28 has a wire member 45 having one end connected to the support shaft 36 and the other end fixed to the fastener 40, and an intermediate portion of the wire member 45. And a coil spring 46 as an elastic member interposed therebetween. The coil spring 46 applies a force in a direction of pulling the first and second hollow pipes 26 and 27 toward each other. Therefore, as shown in FIG. 27, the free ends of the racks 27 are strongly abutted against each other in a state where the racks 27 extend substantially linearly. And the passage R can be secured.
[0022]
As shown in FIGS. 5 and 6, the bearing means 25 is fixed via bolts 51 in the upper surface of the end of the rail-shaped reinforcing member 50 spot-welded on the top plate 13 of the rack 10. I have. The bearing means 25 is loosely fitted to the base member 53 placed on the upper surface of the reinforcing member 50, and is located in the square hole 35 of the first and second hollow pipes 26 and 27. An outer cylindrical member 54 rotatable around the base member 53 together with the pipes 26 and 27 and a disk-shaped top plate 57 which is located above the square hole 35 and is fixed to the upper end of the base member 53 with bolts 55. Become.
[0023]
The base member 53 includes a substantially disk-shaped substrate 60, an intermediate portion 61 having a diameter of about half of the substrate 60, and an upright shaft 62 directed upward from the upper surface side of the intermediate portion 61. A screw hole 62 </ b> A of the bolt 55 is formed at the center of the upper end of the screw 62.
[0024]
The outer cylinder member 54 includes a ring portion 65 mounted on the upper surface of the intermediate portion 61, and a cylindrical portion 66 standing upright from the ring portion 65. The cylindrical portion 66 is provided with a long hole 66A whose major axis is in a direction along the axial direction of the first and second hollow pipes 26 and 27, so that the cylindrical portion 66 can be rotated simultaneously with the hollow pipes 26 and 27. The width of the cylindrical portion 66 in the short axis direction is set to be slightly larger than the diameter of the upright shaft 62.
[0025]
The take-out member 22 has a first shaft member 70 rotatably supported at one end near a corner of the top plate 13 of the rack 10 and a second shaft similarly supported at a corresponding position on the opposed rack 10 side. It comprises a member 71 and a hinge 73 connecting the free ends of the shaft members 70, 71. The take-out member 22 extends substantially linearly when the passage R is formed between the racks 10, and is foldable so that the free end is located rearward when the passage R is not formed. Have been.
[0026]
In the state where the passage P is formed, the string-shaped member 24 is provided to have a length such that the front end side hangs down slightly by a small amount so as to be wound around a substantially central region of the take-out member 22.
[0027]
Next, the operation of the rack 10 according to the present embodiment will be described with reference to FIG.
[0028]
In a state where the racks 10 are in close contact with each other or close to each other so that the passage P is not formed between the racks 10, the first and second hollow pipes 26 and 27 are substantially parallel to each other, and the free end side is located forward. It will be in the folded position. On the other hand, the first and second shaft members 70 and 71 of the take-out member 22 are in a folded position with their free ends positioned rearward. At this time, the string-shaped member 24 hooked on the take-out member 22 is hidden between the racks 10.
[0029]
Here, by releasing the lock device 17 and rotating the handle 17, the rack 10 including the handle 17 moves along the track R. As a result, the first and second hollow pipes 26 and 27 of the stopper 21 and the first and second shaft members 70 and 71 of the take-out member 22 rotate in a direction gradually opening from the folded position. When the rack 10 is initially moved, the outer cylindrical member 54 constituting the bearing member 25 is formed as a long hole 66A, so that the outer cylindrical member 54 is slightly elongated in the long axis direction of the long hole 66A with respect to the upright shaft 62 of the base member 53. Since there is play, the initial handle operation can be performed without any burden.
[0030]
When the handle operation is performed to a position where the first and second hollow pipes 26 and 27 become substantially linear, the coil spring 46 constituting the movement restriction position holding means 28 extends, and the rack movement stops at the limit position. It will be. Then, the coil spring 46 is elastically restored to come into contact with the free ends of the first and second hollow pipes 26 and 27 to form the passage P, and thereafter, the passage P is not inadvertently closed. A tension force is applied to each rack 10. At the same time, the take-out member 22 also extends substantially linearly, and the front end of the string-shaped member 24 is positioned above the entrance of the passage P.
[0031]
Here, when closing the passage P, the front end of the string-shaped member 24 may be slightly pulled. Thus, since the rear ends of the string-shaped members 24 are connected near the free ends of the first and second hollow pipes 26 and 27, each free end moves slightly forward from the position extending linearly. At the same time, the free ends of the take-out member 22 and the first and second shaft members 70 and 71 also move slightly rearward. When the steering wheel is operated in such a state, the tension force by the stopper 21 is released, so that the first and second hollow pipes 26 and 27 rotate easily in the folding direction and close the passage P. The movement of the rack 10 is allowed.
[0032]
Therefore, according to such an embodiment, it is possible to obtain the effect that the rack 10 can be moved in the direction to close the passage P only by pulling the string-like member 24.
[0033]
The best configuration and method for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this.
That is, the present invention has been particularly shown and described with particular reference to particular embodiments, but without departing from the spirit and purpose of the invention, Those skilled in the art can make various modifications in shape, position, quantity, and other detailed configurations.
Therefore, the description of limiting the shapes and the like disclosed above is illustratively described to facilitate understanding of the present invention, and does not limit the present invention. The description of the names of members excluding some or all of the limitations is included in the present invention.
[0034]
For example, when the width of the rack 10 in the depth direction is small, as shown in FIG. 8, the plane height positions of the first and second hollow pipes 26 and 27 constituting the stopper 21 are taken out by the first and second members of the take-out member 22. The second shaft members 70 and 71 can be made higher than the plane height position to avoid mutual positional interference.
[0035]
Further, in the above-described embodiment, the type in which a plurality of racks are not connected in the depth direction of the rack 10 has been described. However, in the depth direction of the rack 10, for example, ten racks may be connected to each other. The present invention can also be applied to a case where a large storage rack is connected. In this case, the stopper 21 is disposed at a substantially middle part in the depth direction, that is, the rack in the middle part (fifth unit) in the depth direction, while the length of the cord-like member 22 is set to be long and is extended to the take-out member 22. Thus, stable movement regulation can be performed for all racks along the depth direction.
[0036]
Further, in the above-described embodiment, the case where the string-shaped member 24 is positioned in front of the rack 10 has been described. However, the position of the take-out member 22 may be changed to the upper rear end side of the rack 10 and positioned rearward.
[0037]
【The invention's effect】
As described above, according to the present invention, since the string-shaped member is employed as the operation member, the movement restriction can be released with a simple configuration without using a rod or the like for releasing the rack movement restriction. Therefore, it is possible to provide a safety device for a moving rack that has an unprecedented superior effect.
[0038]
In particular, when a configuration is adopted in which a take-out member is provided on a rack to support an intermediate portion of the string-like member, the front end side of the string-like member is suspended above the entrance of the passage when the passage is formed. Therefore, the operation for releasing the stopper can be easily performed.
[0039]
Further, in the configuration in which the movement restricting position holding means forming the stopper includes an elastic member, the first and second rod-shaped members can be kept in a state where they are always kept in a straight line, so that careless folding can be effectively performed. Can be avoided.
[0040]
Further, according to the configuration in which the first and second rod-shaped members are formed of hollow pipes and the movement-restricting position holding means is disposed in the pipe, the first and second rod-shaped members are caught when rotating and moving. Can be prevented.
[0041]
In addition, by using a configuration having a locking device in the vicinity of a handle for moving the rack, it is possible to more reliably prevent the rack from being inadvertently moved, and to provide a safety device according to the present invention. It can be applied to a mobile rack.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing the entire configuration of a movable rack showing a state in which a passage is formed between some racks.
FIG. 2 is an enlarged sectional view of a stopper.
FIG. 3 is an enlarged plan view of a stopper in a state where a top plate is omitted.
FIG. 4 is a sectional view taken along line AA of FIG. 3;
FIG. 5 is a schematic perspective view showing a rotation center region of the first hollow pipe.
FIG. 6 is an exploded perspective view of FIG. 5;
FIG. 7 is a schematic perspective view of the movable rack showing a state in which it moves in a direction to close the passage between the racks from the state of FIG. 1;
FIG. 8 is a schematic perspective view of a moving rack showing a modification of the embodiment.
[Explanation of symbols]
10 Rack 16 Handle 17 Locking device 20 Safety device 21 Stopper 22 Take-out member 24 String-shaped member (operating member)
26 first hollow pipe (first rod-shaped member)
27 Second hollow pipe (second rod-shaped member)
28 Movement restriction position holding means 45 Wire member 46 Coil spring (elastic member)
P path R orbit

Claims (5)

In a safety device of a plurality of racks that can move along a track arranged on the floor,
Including a stopper disposed between the upper part of the plurality of racks, and an operation member of the stopper,
The stopper extends substantially linearly when the rack is moved to form a passage between the racks, and restricts movement in the passage closing direction. On the other hand, the stopper is released in a direction to close the passage by releasing the restriction. Is provided so that it can be folded when it is moved,
The operation member has one end connected to the stopper, and the other end configured by a string-like member that can be taken out frontward or rearward of the rack,
A safety device for a movable rack, wherein the movement of the rack by the stopper is released by pulling the other end of the string-shaped member. The safety device for a movable rack according to claim 1, wherein a take-out member is disposed on an upper front end side or an upper rear end side of the rack, and the intermediate portion of the cord-like member is supported by the take-out member. The stopper includes a first rod-shaped member rotatably supported on one rack in a cantilevered posture, and a second rod-shaped member rotatably supported on the other rack in a cantilevered posture opposed to the rack moving direction. And a connecting member for connecting the free end sides of the first and second rod members to each other in a foldable manner, and a movement regulating position holding means provided between the first and second rod members.
The movement restricting position holding means is characterized in that the first and second rod-shaped members include elastic members that can apply an attractive force to the rod-shaped members at positions where they extend substantially linearly. The safety device for a movable rack according to claim 1 or 2, wherein 4. The moving rack according to claim 3, wherein the first and second rod-shaped members are constituted by hollow pipes, and the movement restriction position holding means is disposed in the first and second rod-shaped members. Safety device. 4. The rack according to claim 1, wherein a handle for moving the rack along the track is provided on each rack, and a lock device for the handle is provided near the handle. 4. The movable rack safety device according to 4.

Images