JP6127809B2 - Safety fence assembly - Google Patents

Description

  The present invention relates to a safety fence assembly that protects a person from an operating part of an automatic device, and particularly to a safety fence assembly that can form a passage through which a person can pass in an emergency or the like.

  For example, an automatic device such as a robot or an automatic warehouse may include an operation unit that moves at a high speed and a relatively heavy operation unit that moves at a low speed. During normal operation of these automatic devices, a safety fence may be provided so as to partition and enclose the operation range so that a person does not enter the operation range of the operation unit.

  Patent Document 1 describes a technique related to a safety fence for partitioning the operating range of an automatic device. The safety fence described in Patent Literature 1 is a safety fence that is lightweight and can prevent a person's arm or finger from passing through the safety fence by making fine meshes.

JP 2012-20847 A

  However, the safety fence divides the operating range of the automatic device and prevents inadvertent entry of people into the operating range. On the other hand, when a regular maintenance or sudden failure occurs, there are cases where an operator enters and works within an operating range, that is, a range partitioned by a safety fence. However, when a worker is working inside the safety fence, some trouble may occur in the automatic equipment, and the worker may want to escape immediately from the safety fence. In addition, when a fire or a large-scale disaster occurs, it may be assumed that a firefighter or the like has to pass through a safety fence from the outside and enter the operating range of the automatic device.

  The present invention has been made in view of the above problems, and can prevent a person from entering the operating range of the operating unit during normal operation of the automatic device and can form a passage through which a person can safely pass in an emergency. The purpose is to provide a fence assembly.

  In order to achieve the above object, a safety fence assembly according to the present invention is a safety fence assembly that partitions an operation range of the operation unit of an automatic device having an operation unit that automatically operates, and has a mesh shape, or In the abutting portion where the grid-like first fence, the net-like or grid-like second fence, and the edge of the first fence and the edge of the second fence are arranged in abutting state, the first A first connection body that fixedly connects the first fence and the second fence across the fence and the second fence, and the rigidity of the first connection body is the first fence, and It is characterized by being lower than the rigidity of said 2nd fence.

  Furthermore, a plurality of the first fences may be provided, the first fences adjacent to each other in a butted state may be fixedly connected, and a second connection body having higher rigidity than the first connection body may be provided.

  According to this, in the event of an emergency, if a person applies force to the second fence, the first connected body is destroyed, the second fence moves relative to the first fence, and the second fence is provided. It is possible to form a passage for a person to pass through the safety fence assembly at the place where it has been. And since the 2nd fence is mesh shape or a grid | lattice form, before applying force to a 2nd fence, the condition of a passage destination can be visually recognized and safety can be confirmed. Moreover, since the second fence itself is not destroyed, the safety fence assembly can be easily restored.

  Here, the rigidity of the first connection body is lower than the rigidity of the first fence and the second fence means that the rigidity of the material constituting the first connection body and the first fence and the second fence are It is not a comparison of the rigidity of the material to be constructed, and the second fence moves relative to the first fence in a state where the first fence and the second fence are fixedly connected by the first connecting body. When force is applied to the second fence in the direction, the first fence and the state where the first connected body breaks before the second fence is shown. The meaning of the term “rigidity” is also used in the specification and in the claims.

  Furthermore, you may provide the hinge which connects said 2nd fence rotatably with respect to said 1st fence.

  According to this, when a force is applied to the second fence and the first connected body is destroyed, the second fence does not completely disengage from the first fence, but the second fence rotates on the first fence. Since the passage that passes through the safety fence assembly can be formed in a state where it can be connected, it is possible to avoid a situation in which the second fence that has fallen under the foot prevents the person from escaping. In addition, the safety fence assembly can be easily restored.

  Moreover, it is preferable that the first connector is screwed to each of the first fence and the second fence.

  According to this, the destroyed first coupling body can be easily removed from the first fence and the second fence, and when the safety fence assembly is restored, the first fence and the second fence can be easily attached. It becomes possible to connect with a 1st coupling body.

  The second fence is preferably smaller than the first fence.

  This makes it possible to easily form a passage when passing through the safety fence assembly.

  Further, a shift detection that detects a shift between the first fence and the second fence caused by the destruction of the first connected body and generates stop information that stops the operation of the operation unit of the automatic device. Means may be provided.

  According to this, when a passage must be formed in the safety fence assembly in the event of a disaster or the like, it is possible to ensure the safety of a person passing through the safety fence assembly.

  According to the present invention, an emergency passage can be easily formed in the safety fence assembly that partitions the operating range of the operating portion of the automatic device. Moreover, the safety at the time of forming a channel | path can be ensured by visual recognition. In addition, after the passage is formed, the safety fence assembly can be easily restored.

FIG. 1 is a plan view schematically showing the entire factory where the safety fence assembly is installed. FIG. 2 is a front view showing the safety fence assembly from the front. FIG. 3 is a front view showing the first connector and the vicinity thereof from the front. FIG. 4 is a front view showing another embodiment of the safety fence assembly from the front.

  Next, an embodiment of a safety fence assembly according to the present invention will be described with reference to the drawings. In addition, the following embodiment is only what showed an example of the safety fence assembly which concerns on this invention. Accordingly, the scope of the present invention is defined by the wording of the claims with reference to the following embodiments, and is not limited to the following embodiments. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept of the present invention are not necessarily required to achieve the object of the present invention. It will be described as constituting a preferred form.

  FIG. 1 is a plan view schematically showing the entire factory where the safety fence assembly is installed.

  As shown in the figure, a safety fence assembly 101 and an automatic device 102 are provided in the factory building 200. In this embodiment, the automatic device 102 is an automatic warehouse, and includes a stacker crane as the operation unit 121. In the factory building 200, a plurality of rows of shelves 201 for holding loads transferred by a stacker crane are installed.

  In the case of the present embodiment, the factory building 200 is provided with a door 202 for emergency evacuation or emergency entry.

  The automatic device 102 is a device having an operation unit 121 that operates automatically. In the case of the present embodiment, the automatic device 102 includes a stacker crane as the operation unit 121. The stacker crane includes a cart (not shown) that travels along a rail 129 laid on the floor surface, a mast 122 that is attached to the cart in a vertically extending state, and an elevator that moves up and down along the mast 122. A table 123 and a transfer device 124 for transferring a load between the elevator table 123 and the shelf 201 are provided.

  FIG. 2 is a front view showing the safety fence assembly from the front.

  As shown in the figure, the safety fence assembly 101 is a structure formed by assembling a plurality of fences that divide the operation range A of the operation unit 121 of the automatic device 102, and includes a first fence 111 and a second fence 112. And the 1st connection body 131 is provided. In the case of the present embodiment, the safety fence assembly 101 includes a plurality of first fences 111, and includes a second connecting body 132, a deviation detecting means 133, and a hinge 134.

  The first fence 111 is a mesh-like or lattice-like fence, and is a fence that partitions the operation range A of the automatic device 102 from other ranges. Here, the net shape or the lattice shape means that a plurality of penetrating portions penetrating in the thickness direction are provided so that the other side separated by the first fence 111 can be visually recognized. It is not limited and is used in a sense including, for example, punching metal.

  In the case of the present embodiment, the first fence 111 is obtained by attaching a metal net to the first frame 113 and is fixedly installed on the floor surface F.

  In the case of the present embodiment, the main part of the safety fence assembly 101 is formed by a plurality of connected first fences 111.

  The second fence 112 is a mesh-like or lattice-like fence, and is a fence that partitions the operation range A of the automatic device 102 from other ranges during normal operation. Further, in an emergency or the like, it is a fence that moves relative to the first fence 111 and forms a passage in the safety fence assembly 101 for passing through the safety fence assembly 101. In the case of the present embodiment, the second fence 112 is smaller than the first fence 111 and is large enough for one person to pass through.

  In the case of the present embodiment, the second fence 112 is a metal frame attached to the second frame 114, and is not installed directly on the floor surface F, but is rotated around the first fence 111 by the hinge 134. It is mounted movably.

  FIG. 3 is a front view showing the first connector and the vicinity thereof from the front.

  The first connecting body 131 has a first straddle between the first fence 111 and the second fence 112 at the abutting portion B where the end edge of the first fence 111 and the end edge of the second fence 112 are arranged in abutted state. This is a member for fixedly connecting the fence 111 and the second fence 112. Moreover, the rigidity of the 1st connection body 131 is lower than the rigidity of the 1st fence 111 and the 2nd fence 112, and a person tries to move the 2nd fence 112 relatively with respect to the 1st fence 111. When a force is applied to the fence 112, the first link body 131 has such a rigidity that the first link body 111 and the second fence 112 are not destroyed and the first link body 131 is damaged.

  In the case of the present embodiment, the first coupling body 131 is a plate-like member and is screwed to each of the first fence 111 and the second fence 112. Specifically, the first coupling body 131 is formed in a screw hole provided in the first frame body 113 of the first fence 111 on the opposite side of the portion to which the hinge 134 is attached in the left-right direction (Y-axis direction in the drawing). One end in the left-right direction (Y direction in the figure) is fastened by screwing the bolt directly, and the left-right direction (figure shown) is screwed into the screw hole provided in the second frame 114 of the second fence 112. The other end in the middle Y direction is fastened. The fastening method is not particularly limited, and bolts may be inserted into through holes provided in the first fence 111 and the second fence 112 and fastened with nuts.

  Moreover, the 1st connection body 131 is provided with the thinning part 136 penetrated in the thickness direction, and the rigidity of the 1st connection body 131 is adjusted and the part which selectively breaks is formed.

  The second connection body 132 is a member that fixedly connects the adjacent first fences 111 in the butted state, and is a member that is higher in rigidity than the first connection body 131. That is, when the passage for passage is formed in the safety fence assembly 101, the rigidity at which the first connection body 131 is damaged before the second connection body 132 is damaged when the second fence 112 is pushed is first. The connection body 131 is provided.

  The deviation detection means 133 detects the deviation between the first fence 111 and the second fence 112 caused by the destruction of the first connecting body 131, and provides stop information for stopping the operation of the operation unit 121 of the automatic device 102. It is a device that generates electricity.

  In addition, based on the stop information transmitted from the deviation detection means 133, the operation parts 121 of all the automatic devices 102 in the factory building 200 may be stopped, and the second fence 112 to which the deviation detection means 133 is attached is opened. As a result, only the operation unit 121 corresponding to the operation range A in which a person can enter may be stopped.

  According to the safety fence assembly 101 described above, when a person passes through the safety fence assembly 101 in an emergency or the like, if the force is applied to the second fence 112, the first connecting body 131 is destroyed, and the second fence 112 Is opened and a passage through the safety fence assembly 101 can be formed. Moreover, since the other side can be visually recognized through the 2nd fence 112 when forming a channel | path, it becomes possible to form a channel | path, confirming safety. Further, since the second fence 112 itself is not destroyed and is attached to the first fence 111 by the hinge 134, the safety fence assembly 101 can be easily restored even after the passage is formed. .

  In addition, this invention is not limited to the said embodiment. For example, another embodiment realized by arbitrarily combining the components described in this specification and excluding some of the components may be used as an embodiment of the present invention. In addition, the present invention includes modifications obtained by making various modifications conceivable by those skilled in the art without departing from the gist of the present invention, that is, the meaning described in the claims. It is.

  For example, as shown in FIG. 4, the second fence 112 may be fixed to the first fence 111 only by the first coupling body 131. Further, the second fence 112 may be connected to different first fences 111, respectively.

  In addition, when the second fence 112 is formed of the second frame body 114 and the net, and the net is flexible, the second link 112 can be prevented from being broken even if the net is pushed. A low-flexible crosspiece member 115 attached to the frame body 114 in a cross-linked manner may be provided. Further, by providing the crosspiece member 115 in a portion that is easy to push by hand or a portion that is easy to kick with a foot, the force applied by the hand or foot is applied to the first connecting body 131 via the crosspiece member 115 and the second frame body 114. Therefore, the first connector 131 can be destroyed as desired.

  Moreover, the mesh arrangement and the mesh roughness of the first fence 111 and the second fence 112 may be different. According to this, the position of the 2nd fence 112 can be visually recognized easily, and it becomes possible to find the place which can pass in the safety fence assembly 101 easily.

  The present invention can be used in a factory or the like where an automatic device including an operation unit such as a stacker crane or a traveling vehicle system is installed.

101 Safety fence assembly 102 Automatic device 111 First fence 112 Second fence 113 First frame body 114 Second frame 115 Cross member 121 Operation part 122 Mast 123 Lifting platform 124 Transfer device 129 Rail 131 First connection body 132 First Two connected body 133 Deviation detecting means 134 Hinge 135 Bolt 136 Meat removal part 200 Factory building 201 Shelf 202 Door

Claims (6)

A safety fence assembly for partitioning the operating range of the operating unit of an automatic device having an operating unit that operates automatically,
With a net-like or grid-like first fence,
A net-like or grid-like second fence,
In the butting portion where the edge of the first fence and the edge of the second fence are arranged in abutting state, the first fence and the second fence straddling the first fence and the second fence A first connecting body for fixedly connecting,
A safety fence assembly in which the rigidity of the first coupling body is lower than the rigidity of the first fence and the second fence. further,
A plurality of the first fences,
2. The safety fence assembly according to claim 1, further comprising a second connection body that fixedly connects the adjacent first fences in a butted state and has higher rigidity than the first connection body. further,
The safety fence assembly according to claim 1, further comprising a hinge that rotatably connects the second fence to the first fence. The safety fence assembly according to any one of claims 1 to 3, wherein the first connection body is screwed to each of the first fence and the second fence. The safety fence assembly according to any one of claims 1 to 4, wherein the second fence is smaller than the first fence. further,
Deviation detection means for detecting a deviation between the first fence and the second fence caused by the destruction of the first connected body and generating stop information for stopping the operation of the operation unit of the automatic device. The safety fence assembly according to any one of claims 1 to 5.

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