JP4292850B2 - Mobile rack safety device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a safety device for a movable rack, and more particularly, when a passage is formed between a plurality of racks provided to be movable along a track on a floor surface, the passage is inadvertently blocked. The present invention relates to a safety device for a mobile rack without a load.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a plurality of movable racks are known in which tracks are arranged in a state substantially parallel to each other on a floor surface of an office or the like and are movable along the tracks. In order to make effective use of space, the movable racks are arranged side by side in contact with each other or in close proximity to each other, and a passage can be formed between the racks when an object to be stored is taken in and out.
[0003]
In such a mobile rack, a lock device for prohibiting the handle operation for moving the rack is employed, but since the lock device is operated manually, the operation is actually not performed. Often left untreated. In such a case, there is a problem that the rack is inadvertently moved in the passage closing direction due to an earthquake or the like when an object to be stored is taken in or out of the passage between the racks or a book is being browsed.
[0004]
Therefore, as shown in Patent Document 1, a safety device has been proposed in which a safety bar is arranged between upper parts of a moving rack and the inadvertent movement of the rack is regulated by the safety bar.
[0005]
[Patent Document 1]
Japanese Patent Publication No. 55-33885 [0006]
[Problems to be solved by the invention]
However, in the safety device described in Patent Document 1, the release of the state where the safety bar is positioned so as not to block the passage between the moving racks is for operation provided on the front side of the moving rack. It is to be done through picking. For this reason, a bar for unlocking, a link mechanism and the like must be built in the rack between the operation knob and the safety bar, and there is an inconvenience that the rack structure is complicated. Moreover, the configuration of Patent Document 1 has a restriction that the distance from the operation knob must be set to a minimum. Therefore, when many mobile racks are connected so as to become longer in the depth direction of the passage, the stopper function by the safety bar does not reach the mobile racks in the depth direction, and the racks in the depth direction approach each other by vibration or the like. Therefore, there is a disadvantage that the safety when the worker exists in the area cannot be ensured.
[0007]
OBJECT OF THE INVENTION
The present invention has been devised by paying attention to such inconveniences, and an object of the present invention is to provide a safety device for a movable rack that can achieve an operation of releasing a rack movement restriction state by a stopper with a very simple configuration. Is to provide.
[0008]
Another object of the present invention is that there is no restriction on the stopper mounting position. For example, when a large number of racks are connected in a long state in the depth direction, the movement restriction of each rack along the depth direction is totally controlled. It is an object of the present invention to provide a safety device for a movable rack that can be applied to the vehicle.
[0009]
[Means for Solving the Problems]
To achieve the above object, the present invention provides a safety device for a plurality of racks movable along a track disposed on a floor surface.
A stopper disposed between upper portions of the plurality of racks, an operation member of the stopper, and a take-out member disposed on an upper front end side or an upper rear end side of the rack ,
The stopper extends in a substantially straight line when the rack is moved to form a passage between the racks and restricts the movement in the passage closing direction, while the stopper is released to close the passage. It is provided so that it can be folded when moving
The operation member is composed of a string-like member whose one end is connected to the stopper and whose other end can be taken forward or rearward of the rack,
The middle part of the string-like member is supported by the take-out member,
A configuration is adopted in which the movement restriction of the rack by the stopper is released by pulling the other end of the string-like member. According to such a configuration, when the stopper extends substantially linearly, even if the opposing rack attempts to approach, the stopper resists the compressive force and restricts the approaching movement of the rack. On the other hand, by pulling the operating member, if the stopper is bent slightly, a force in the direction of bending the stopper can be applied. Therefore, by operating the rack so as to approach in this state, the stopper can be rotated in the direction of natural folding, and the rack can be brought close to a position where the passage is closed. In addition, by adopting a string-like member as the operation member, it is possible to cancel the movement restriction by the stopper with a very simple configuration without using a rod or a link mechanism, and by adjusting the length of the operation member It is possible to give a degree of freedom to the routing position or direction.
In addition, when a take-out member is provided, when a passage is formed between opposing racks, the other end side of the string-like member can be suspended from the middle upper portion of the entrance of the passage so that it can be easily operated. A string-like member can be positioned.
[0011]
The stopper includes a first bar-like member that is rotatably supported by one rack in a cantilever posture, and a second member that is rotatably supported by the other rack facing the rack movement direction in a cantilever posture. A rod-shaped member, a connecting member that foldably connects the free end sides of the first and second rod-shaped members, and a movement restricting position holding means provided between the first and second rod-shaped members. Including
The movement restricting position holding means is configured to include an elastic member capable of applying an attractive force to the rod-shaped members at a position where the first and second rod-shaped members extend substantially linearly. It is preferable to take. In such a configuration, in a state where the first and second rod-like members extend linearly, unless a force for bending the rod-like members in the folding direction is applied, the state in which the linear state is always maintained is continued. It is possible to prevent the rack from moving in the direction of closing the passage 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 restricting position holding means is disposed in the first and second rod-shaped members. This prevents the moving position holding means from appearing outside the first and second rod-like members, keeps the appearance in good appearance, and prevents positional interference with surrounding parts. Is 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 is provided in the vicinity of the handle. By using such a locking device in combination, inadvertent movement of the rack can be prevented more reliably. Moreover, even when the operation of the locking device is forgotten, the stopper can be prevented from being blocked.
[0014]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0015]
FIG. 1 shows an overall configuration of a movable rack in a state where a passage is formed between some racks. In this figure, a plurality of racks 10 are movably supported on a track R arranged in a substantially parallel state on a floor surface of an office or the like. The rack 10 is not particularly limited, but in the present embodiment, the rack 10 is arranged in the inner space surrounded by the front panel 11, the rear panel 12, the top plate 13, the lowermost shelf 14, and these panels 11-14. It is comprised by the shelf board 15 made.
[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, sprockets are provided in the front panel 11 on the rotating shaft of the wheel rotating on the track R and the rotating shaft of the handle 16, respectively. The rack 10 can be moved in accordance with the amount of rotation of the handle 16 by being connected with each other. Here, a locking device 17 is disposed in the vicinity of the handle 16, and the locking device 17 can engage a notch (not shown) provided inside by engaging the chain with a predetermined operation. The rotation of the handle 16 is restricted.
[0017]
A safety device 20 is disposed between the upper portions of the racks 10. The safety device 20 has an upper end of the rack 10, that is, a stopper 21 disposed between the top plates 13 and an intermediate portion of the stopper 21, one end side, that is, the rear end side, and the other end side, that is, the front end side. It is comprised by the string-like member 24 as an operation member taken out via the take-out member 22 arrange | positioned between the front parts of the rack 10. FIG.
[0018]
As shown in FIGS. 2 to 6, the stopper 21 has a prismatic shape as a first rod-like member that can rotate in a horizontal plane in a cantilevered manner via bearing means 25 on the upper part of one of the opposite racks 10. A first hollow pipe 26, a second hollow pipe 27 as a second rod-like member that is rotatably provided on the upper portion of the other rack 10 via a bearing means 25, and the first and second The movement restricting position holding means 28 extending into the hollow pipes 26 and 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. Yes.
[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, a track. The movement in the direction that closes the passage P by extending substantially linearly in a direction substantially parallel to R is restricted. On the other hand, when the rack 10 is moved in a direction in which the restriction is released and the passage P is closed by pulling the front end side of the string-like member 21, the free end side is folded in a direction to be the front position. It is provided as possible.
[0020]
Moreover, the said 1st hollow pipe 26 and the 2nd hollow pipe 27 are each provided with the square hole 35 penetrated to an up-down direction in the one end side used as those rotation center sides. In the first hollow pipe 26, a support shaft 36 that penetrates the pipe is fixed at a position slightly away from the square hole 35 toward the free end. On the other hand, the second hollow pipe 26 is provided with a fastener 40 including a bolt 37 and a nut 39 on a bottom surface part slightly away from the square hole 35 toward the free end side. The movement restricting position holding means 28 is disposed between them.
[0021]
As shown in FIG. 2, the movement restricting position holding means 28 includes 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 in which the first and second hollow pipes 26 and 27 are attracted to each other. Therefore, as shown in FIG. Even when a force is applied to move one rack 10 in a direction approaching the other rack 10, the free ends thereof are strongly abutted with each other in a state where the 27 extends substantially linearly. And the passage R can be secured.
[0022]
As shown in FIGS. 5 and 6, the bearing means 25 is fixed through bolts 51 in the upper surface region of the end portion of the rail-shaped reinforcing member 50 spot-welded on the top plate 13 of the rack 10. Yes. The bearing means 25 is located in the square hole 35 of the first and second hollow pipes 26, 27 while being loosely fitted to the base member 53 mounted on the upper surface of the reinforcing member 50 and the base member 53. An outer cylindrical member 54 that can rotate around the base member 53 together with the pipes 26 and 27, and a disk-shaped top plate 57 that is located on the upper side of the square hole 35 and is fixed to the upper end of the base member 53 with a bolt 55. Become.
[0023]
The base member 53 includes a substantially disk-shaped substrate 60, an intermediate portion 61 having a diameter approximately 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 62.
[0024]
The outer cylinder member 54 includes a ring portion 65 that is placed on the upper surface of the intermediate portion 61 and a cylindrical portion 66 that stands upward from the ring portion 65. The cylindrical portion 66 is provided with a long hole 66A having a long axis in the direction along the axial direction of the first and second hollow pipes 26 and 27, so that it can rotate simultaneously with the hollow pipes 26 and 27. The width of the cylindrical portion 66 in the minor 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 supported at one end so as to be rotatable in the vicinity of the corner of the top plate 13 in the rack 10 and a second shaft similarly supported at a corresponding position on the opposite rack 10 side. It consists of a member 71 and a hinge 73 that connects the free ends of these shaft members 70 and 71. The take-out member 22 extends substantially linearly when the passage R is formed between the racks 10, 10, and can be folded so that the free end side is located rearward when the passage R is not formed. It has been.
[0026]
The string-like member 24 is provided with such a length that the front end side slightly hangs downwardly so as to hang around the substantially central region of the take-out member 22 in a state where the passage P is formed.
[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 and the passage P is not formed between the racks 10, the first and second hollow pipes 26 and 27 are substantially parallel and the free end side is positioned 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 folded in a state where their free end sides are located rearward. At this time, the string-like 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 having 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 the direction of opening gradually from the folding position. When the rack 10 is initially moved, the outer cylinder member 54 constituting the bearing member 25 is formed as a long hole 66A. There will be play, and the initial handle operation can be performed without burden.
[0030]
When the handle operation is performed to a position where the first and second hollow pipes 26, 27 are substantially linear, the coil spring 46 constituting the movement restricting 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 so that the free ends of the first and second hollow pipes 26 and 27 are brought into contact with each other to form the passage P. Thereafter, the passage P is not inadvertently closed. A tension force is applied to each rack 10, 10. At the same time, the take-out member 22 also extends substantially linearly, and the front end portion of the string-like member 24 is positioned at the upper entrance of the passage P.
[0031]
Here, when the passage P is closed, the front end portion of the string-like member 24 may be slightly pulled. Thereby, since the rear end of the string-like member 24 is connected in the vicinity of the free ends of the first and second hollow pipes 26 and 27, each free end is moved slightly forward from the linearly extending position. At the same time, the free end of the first and second shaft members 70 and 71 also moves slightly rearward in the carry-out member 22. When the handle is operated in such a state, since the tension force by the stopper 21 is released, the first and second hollow pipes 26 and 27 easily rotate in the folding direction and close the passage P. Therefore, the rack 10 is allowed to move.
[0032]
Therefore, according to such an embodiment, the effect that the rack 10 can be moved in the direction of closing the passage P only by pulling the string-like member 24 is obtained.
[0033]
Although the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, the present invention is not limited to this.
That is, the present invention has been illustrated and described primarily with respect to particular embodiments, but without departing from the scope of the technical idea and purpose of the present invention, Various modifications may be made by those skilled in the art in terms of shape, position, quantity, and other detailed configurations.
Therefore, the description limited to the shape disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded one part or all part is included in this invention.
[0034]
For example, when the rack 10 has a small width in the depth direction, as shown in FIG. 8, the planar height positions of the first and second hollow pipes 26 and 27 constituting the stopper 21 are set to the first and second of the take-out member 22. The positional interference between the second shaft members 70 and 71 can be avoided by making the height higher than the planar height position of the second shaft members 70 and 71.
[0035]
In the above-described embodiment, a type in which a plurality of racks are not connected in the depth direction of the rack 10 has been described. However, for example, 10 racks are arranged in series with each other in the depth direction of the rack 10. It can also be applied to a large storage rack that is connected. In this case, the stopper 21 is arranged in a substantially middle portion in the depth direction, that is, the rack in the depth direction middle portion (fifth), while the length of the string-like member 22 is set long and extended to the take-out member 22. Thus, stable movement regulation can be performed for all racks along the depth direction.
[0036]
Moreover, although the case where the string-like member 24 is positioned in front of the rack 10 has been described in the above-described embodiment, the position of the carry-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-like member is adopted 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. The safety device of the movable rack which has the outstanding effect which is not in the past can be provided.
[0038]
In particular, when a configuration is adopted in which a take-out member is provided on the rack and the middle part of the string-like member is supported, when the passage is formed, the front end side of the string-like member is suspended above the entrance of the passage. Therefore, it is possible to easily perform an operation when releasing the stopper.
[0039]
Further, in the configuration in which the movement restricting position holding means constituting the stopper includes an elastic member, the first and second rod-like members can always be kept in a linear state, and inadvertent folding can be effectively performed. Can be avoided.
[0040]
Further, according to the configuration in which the first and second rod-like members are constituted by hollow pipes and the movement restricting position holding means is arranged in the pipe, the first and second rod-like members are caught when rotating. Can be prevented.
[0041]
In addition, if a configuration provided with a lock device in the vicinity of the handle for moving the rack is used in combination, it is possible to prevent the rack from being inadvertently moved more reliably. It can be applied to a moving rack.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing an overall configuration of a movable rack showing a state in which a passage is formed between some racks.
FIG. 2 is an enlarged cross-sectional view of a stopper.
FIG. 3 is an enlarged plan view of a stopper with a top plate omitted.
4 is a cross-sectional view taken along line AA in FIG. 3;
FIG. 5 is a schematic perspective view showing a rotation center region of a first hollow pipe.
6 is an exploded perspective view of FIG. 5. FIG.
7 is a schematic perspective view of a movable rack showing a state of moving from the state of FIG. 1 in a direction of closing a passage between the racks.
FIG. 8 is a schematic perspective view of a movable 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-like member (operation member)
26 1st hollow pipe (1st 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 Passage R Track

Claims (4)

In a safety device of a plurality of racks movable along a track arranged on the floor surface,
A stopper disposed between upper portions of the plurality of racks, an operation member of the stopper, and a take-out member disposed on an upper front end side or an upper rear end side of the rack ,
The stopper extends in a substantially straight line when the rack is moved to form a passage between the racks and restricts the movement in the passage closing direction, while the stopper is released to close the passage. It is provided so that it can be folded when moving
The operation member is configured by a string-like member whose one end side is connected to the stopper and the other end side can be taken forward or rearward of the rack,
The middle part of the string-like member is supported by the take-out member,
A mobile rack safety device, wherein the rack movement restriction by the stopper is released by pulling the other end of the string-like member. The stopper includes a first bar-like member that is rotatably supported by one rack in a cantilever position, and a second bar-like member that is rotatably supported by the other rack facing the rack movement direction in a cantilever position. And a connecting member that connects the free end sides of the first and second rod-shaped members to each other so as to be foldable, and a movement restricting position holding means provided between the first and second rod-shaped members,
The movement restricting position holding means is configured to include an elastic member capable of imparting an attractive force to the rod-shaped members at a position where the first and second rod-shaped members extend substantially linearly. safety device in a mobile rack of claim 1 Symbol mounting and. 3. The mobile rack according to claim 2, wherein the first and second bar-shaped members are constituted by hollow pipes, and the movement restricting position holding means is disposed in the first and second bar-shaped members. Safety device. Wherein each rack includes a handle for moving the rack is provided along the track, moving according to claim 2 or 3, wherein in that it comprises a locking device of the handle in the vicinity of the handle Rack safety device.

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