JP6887674B2 - Fall protection - Google Patents

Description

The present invention relates to a fall protection device that prevents the pallets and articles placed on the shelf boards of these storage shelves from falling due to slipping out even if the storage shelves installed in the factory or warehouse vibrate due to an earthquake or the like.

Conventionally, various devices have been proposed to prevent the articles placed on the shelf board of the storage shelf from falling or popping out due to vibration, shaking or tilting due to an earthquake or an unintended collision of articles.

For example, the fall protection device disclosed in Patent Document 1 for preventing the article from slipping out includes a belt and attachment portions to the columns provided at both ends of the belt, and the attachment portions are L-shaped in contact with the side surfaces of the columns. It has an engaging projection that engages with a part of the support column, and an expansion / contraction means that allows the attachment body to expand / contract in the longitudinal direction of the belt.

In addition, this fall protection device includes a slide piece whose telescopic means can move in a direction of increasing the length of the belt with respect to the mounting body, and a spring that urges the slide piece toward the belt side. When a tensile force is applied in the longitudinal direction of the belt, the slide piece can move in the direction of increasing the length of the belt against the urging force of the spring.

Japanese Patent No. 4128563

However, since the fall protection device disclosed in Patent Document 1 must use the front surface and the side surface of the support column due to its structure, there is a problem that the fall protection tool cannot be attached depending on the shape of the support column, and a plurality of them. There is a problem that it is difficult to attach the shelf board in which the luggage storage stands are continuously arranged in the horizontal direction.

Further, the fall protection device disclosed in Patent Document 1 is used when loading and unloading luggage after installation.
The belt stretched on the front of the luggage must be lengthened with a buckle, and the slide piece of the mounting part must be slid in the longitudinal direction of the belt using both hands, which makes the luggage storage stand unusable. was there.

An object of the present invention is to provide an easy-to-use fall protection device for preventing a fall of an article placed on a shelf board due to slipping due to vibration in view of the above circumstances.

Another object of the present invention is to provide a fall protection device that can be attached in a state where a plurality of shelves are attached in the left-right direction of one column.

The fall prevention tool of the present invention includes a mounting member attached to a shelf board, a rotating shaft supported by a rotating support member of the mounting member, and a rotating member rotating around the rotating shaft. The rotating member is rotatably connected to the rotating shaft by a rotating shaft connecting member, and has a first member and a second member with the position of the rotating shaft connecting member interposed therebetween. When the weight is smaller than the weight of the second member and the rotation shaft is attached to the shelf board so as to be kept substantially horizontal, the end portion of the first member rises substantially vertically. It is held in a state of being located above the upper surface of the shelf board, and is configured to prevent the rotating member from rotating when the load loaded on the shelf board slides out and hits the first member. A fall prevention device that is attached to the shelf board and prevents the luggage loaded on the shelf board from falling due to sliding out.
When the load is loaded on the shelf board, the rotating member rotates when the load hits the first member from the front direction of the shelf board with the fall protection device attached to the shelf board. The fall protection device is provided with a horizontal holding portion for maintaining the first member in a state of being substantially parallel to the upper surface of the shelf board, and the horizontal holding portion has adhesiveness.

Since the weight of the first member is smaller than the weight of the second member, the second member rotates downward and the first member rotates upward with the fall protection device attached to the shelf board, so that the first member Since the upper end of the shelf is located above the upper surface of the shelf board, the luggage placed on the upper surface of the shelf board is prevented from slipping out. Just by attaching it to the shelf board without using a support as in the conventional technology, the end of the first member stands up substantially vertically and is held in a state of being located above the upper surface of the shelf board to prevent the load from falling. Therefore, the degree of freedom of installation is high. Further, the fall protection tool of the present invention is configured to prevent the load loaded on the shelf board from sliding when the first member is rotated, so that the operation is simple. If the height of the luggage placed on the shelf board is close to the height of the ceiling of the shelf board, it may be difficult to lift the luggage with a forklift or the like and exceed the upper end of the first member of the fall protection device. In such a case, if the first member is pushed toward the back of the shelf board with the claws of the forklift to make the first member parallel to the upper surface of the shelf board, the fall protection tool having the horizontal holding portion maintains that state, so that the fall prevention device is prevented from falling. Luggage can be pulled out of the shelf without being disturbed by the tools. Since the horizontal holding portion has adhesiveness, it can be adhered to the upper surface of the shelf board regardless of the material of the shelf board to keep the first member horizontal.

The seismic fixture of the present invention includes a mounting member attached to a shelf board, a rotating shaft supported by a rotating support member of the mounting member, and a rotating member rotating around the rotating shaft. The rotating member is rotatably connected to the rotating shaft by the rotating shaft connecting member, and has the first member and the second member with the position of the rotating shaft connecting member interposed therebetween, and the weight of the first member. Is smaller than the weight of the second member, and when the rotation shaft is attached to the shelf board so as to be kept substantially horizontal, the end portion of the first member rises substantially vertically and the said. It is held in a state of being located above the upper surface of the shelf board, and is configured to prevent the rotating member from rotating when the load loaded on the shelf board slides out and hits the first member. A fall prevention device that is attached to a plate and prevents the luggage loaded on the shelf from falling due to sliding out, and is the second when the luggage loaded on the shelf slides out and hits the first member. A fall prevention tool characterized in that an end portion of the member has a rotation prevention member that comes into contact with the mounting member to prevent the rotation member from rotating, and the rotation prevention member is an elastic body. Is .

Since the second member has the rotation prevention member, the extra rotation is prevented and the end portion of the first member prevents the cargo from slipping out. And since the rotation prevention member is an elastic body, the impact when preventing the luggage from slipping out from the shelf board is softened.

It is explanatory drawing of the appearance of attaching the fall protection tool of this invention to a shelf board. It is explanatory drawing of the movement of the fall protection tool when carrying in the baggage in the direction of arrow A. It is explanatory drawing which shows the state of the fall protection device corresponding to the case where the floor board placed on the shelf board is protruding in front of the shelf board. It is explanatory drawing of the horizontal holding member attached to the 1st member. It is a figure explaining the function of the horizontal holding member attached to the 1st member. It is explanatory drawing of the state of the dent provided in the rotary connection member, and the leaf spring which locks this. It is explanatory drawing of the rotation prevention member attached to the 2nd member. It is explanatory drawing of the attachment state to the shelf of the fall protection tool which has the attachment member which has a U-shaped cross section.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows how the fall protection device is attached to the shelf board 9 on which luggage is loaded. The fall protection device is attached to the side portion of the shelf board 9 by the attachment member 2. The rotating member is composed of a first member 4 and a second member 5 having S as a boundary indicating the position of the axial center of the rotating shaft. The rotating member is rotatably connected to the rotating shaft 3 by the rotating shaft connecting member 6 and rotates around the rotating shaft 3.

Since the weight of the first member is smaller than the weight of the second member, the second member is positioned downward and the rotating member is stable in a manner substantially along the vertical plane. Then, since the end portion of the first member is configured to protrude above the upper surface of the shelf board, it is possible to prevent the load from slipping out on the shelf board and prevent the load from falling.

In this state, when the load slides out and hits the end of the first member, a force for pushing the rotating member toward the front of FIG. 1 is applied and the rotating member tries to rotate, but the end of the second member is bent. Since it is in contact with the mounting member 2, further rotation of the rotating member is hindered. As a result, the end portion of the first member prevents the luggage from slipping out.

Next, the operation of the fall protection tool of the present embodiment will be described with reference to FIG. In FIG. 2, the arrow A indicates the position of the luggage. In (A) of FIG. 2, the luggage is in front of the fall protection device. When the luggage advances toward the back of the shelf, that is, to the right in the figure, the rotating member is pushed by the luggage indicated by the arrow in FIG. 2 (B) and the rotating member becomes substantially parallel to the upper surface of the shelf plate. Then, when the load indicated by the arrow in FIG. 2 (C) passes the position of the fall protection device and moves in the depth direction, the rotating member returns to its original shape and the end portion of the first member protrudes above the upper surface of the shelf board. Stable in shape.

With reference to FIG. 3, a countermeasure for a case where the underlay member permanently installed on the shelf board protrudes in front of the side surface of the shelf board by the length d will be described. The length L of the rotation shaft support member of the attachment member of the fall protection tool of FIG. 3 is formed to be longer than that of FIG. Here, by setting L> d, it is possible to cope with the case where the underlay member protrudes by the length d in front of the side surface of the shelf board. The length of the rotation connecting member that rotatably connects the rotation member to the rotation shaft is also configured to be longer according to the length of the rotation support member. Further, the height h when the rotary connecting member is parallel to the shelf board is set to be larger than the thickness t of the floor board 91, so that it is possible to cope with the protrusion of the floor board and the change in the thickness.

When removing the luggage from the shelf, lift the luggage once with a forklift and pull it toward you. However, the height of the luggage piled up on the shelf may be close to the ceiling of the shelf. In such a case, lift the luggage beyond the height of the end of the first member to bring the luggage toward you. It becomes difficult to pull out. To solve this problem, when pulling out the luggage, the end of the first member is aligned parallel to the upper surface of the shelf board, and the rotating member is held horizontally so as not to interfere with the unloading of the luggage. A mechanism is needed.

Therefore, a horizontal holding portion for holding the end portion of the first member along the upper surface of the shelf plate in parallel with reference to FIG. 4 will be described. In FIG. 4, the horizontal holding members 21 and 22 constituting the horizontal holding portion are attached to the first member.

Here, when the shelf board is made of iron, a magnet is used as the horizontal holding members 21 and 22. When the shelf board is not a magnetic material such as iron, gel or the like may be used as the adhesive material.

The function of the horizontal holding member will be described with reference to FIG. Arrow A indicates the position of the lift claw for the horizontal holding member to function. FIG. 5A shows a state in which the lift claw is in front of the fall protection device, and when the lift claw hits the first member, the rotating member rotates toward the back of the shelf and the first member is on the shelf board. It becomes substantially parallel to the upper surface and is in the state shown in FIG. 5 (B). Then, the horizontal holding members 21 and 22 keep the first member substantially horizontal, and the movement of the load is not hindered. In this state, as shown in FIG. 5C, the luggage can be moved from the shelf toward the front (arrow B) without being hindered by the fall protection device.

Next, the configuration of different horizontal holding portions will be described with reference to FIG. Since the rotating shaft connecting member rotates around the rotating shaft as the rotating member rotates, a recess 31 is provided in the outer peripheral portion of the rotating shaft connecting member in FIG. 6 (A), and FIG. 6 (B) shows. As shown in the above, a leaf spring 32 that locks to the recess 31 is provided on the mounting member. By providing the position of the recess 31 at a position where the first member is substantially parallel to the shelf board, the state where the first member is substantially parallel to the shelf board can be maintained.

In order to prevent the luggage from falling due to sliding out, it is necessary to prevent the rotating member from rotating when the luggage slides out and moves toward the front of the shelf and hits the first member. As shown in FIG. 7A, with the fall protection tool attached to the shelf board, the end of the second member is bent toward the attachment member and brought into contact with the attachment member to rotate the rotating member toward the upper end. It can prevent movement.

Further, as shown in FIG. 7B, the rotation prevention member 55 can be attached to the second member to prevent rotation. This method saves the trouble of bending the rotating member and leads to cost reduction. Further, by using an elastic body as the rotation prevention member 55, it is possible to soften the impact on the fall protection tool due to the sliding of the luggage. Further, for shock absorption, an elastic body for shock absorption may be provided on the first member instead of the horizontal holding members 21 and 22.

A countermeasure for the case where a permanent underlay is prepared on the shelf will be described with reference to FIG. If there is an underlay on the shelf board, it is necessary to change the mounting position of the fall protection device so that the first member rests on the upper surface of the underlay. As shown in FIG. 1, the mounting position can be adjusted in the vertical direction by providing the mounting member with a long hole 81 or a plurality of round holes (not shown) for mounting in the vertical direction.

Some shelves are not provided with holes for attaching fall protection devices, and an embodiment for this is shown in FIG. The fall protection tool of FIG. 8 has a U-shaped cross section so as to cover the horizontal member of the shelf from above. The fall protection device is fixed to the shelf by placing it on the horizontal member of the shelf board from above and tightening the mounting bolts on the nuts of the mounting member. This nut may be provided on the back surface of the mounting member as shown in FIG. 8, but may be provided on the front surface.

The examples described above are a part of the present invention, and the embodiments including the technical idea of the present invention are included in the technical idea of the present invention.

2 Mounting member 3 Rotating shaft 4 1st member 5 2nd member 6 Rotating shaft connecting member 7 Mounting bolt 8 Mounting nut 9 Shelf board 10 Fall protection 12 Mounting member 14 1st member 15 2nd member 17 Rotating shaft Support part 20 Pull-out prevention part 21, 22 Horizontal holding member 55 Rotation prevention member 81 Mounting slot 91 Floor plate

Claims (2)

A mounting member to be attached to the shelf board, a rotating shaft supported by the rotation supporting member of the mounting member, and a rotating member that rotates around the rotating shaft are provided, and the rotating member is connected to the rotating shaft. It is rotatably connected to the rotating shaft by a member, and has a first member and a second member with the position of the rotating shaft connecting member interposed therebetween.
The weight of the first member is smaller than the weight of the second member.
When the rotating shaft is attached to the shelf board so as to be kept substantially horizontal, the end portion of the first member stands up substantially vertically and is held in a state of being located above the upper surface of the shelf board. Being done
The luggage loaded on the shelf board is configured to prevent the rotating member from rotating when the luggage loaded on the shelf board slides out and hits the first member, and the luggage loaded on the shelf board is attached to the shelf board. It is a fall protection device that prevents falling due to slipping.
When the load is loaded on the shelf board, the rotating member rotates when the load hits the first member from the front direction of the shelf board with the fall protection device attached to the shelf board. A fall protection tool comprising a horizontal holding portion for maintaining the first member in a state of being substantially parallel to the upper surface of the shelf board, and the horizontal holding portion having adhesiveness. It is provided with a mounting member attached to a shelf board, a rotating shaft supported by a rotating support member of the mounting member, and a rotating member rotating around the rotating shaft.
The rotating member is rotatably connected to the rotating shaft by a rotating shaft connecting member, and has a first member and a second member with the position of the rotating shaft connecting member interposed therebetween.
The weight of the first member is smaller than the weight of the second member.
When the rotating shaft is attached to the shelf board so as to be kept substantially horizontal, the end portion of the first member stands up substantially vertically and is held in a state of being located above the upper surface of the shelf board. Being done
The luggage loaded on the shelf board is configured to prevent the rotating member from rotating when the luggage loaded on the shelf board slides out and hits the first member, and the luggage loaded on the shelf board is attached to the shelf board. It is a fall protection device that prevents falling due to slipping.
When the luggage loaded on the shelf board slides out and hits the first member, the end portion of the second member comes into contact with the mounting member to prevent the rotation member from rotating. A fall protection device having the rotation prevention member, characterized in that the rotation prevention member is an elastic body.

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