JP6893677B2 - Article fall prevention device - Google Patents

Description

The present invention relates to an article fall prevention device arranged at a rack entrance / exit.

As disclosed in Patent Document 1, the rack article fall prevention device is an article fall prevention device arranged at the entrance / exit of a rack in which a plurality of shelves are attached between columns, and is a left and right vertical swivel and its own. A fall prevention frame that is formed in a frame shape with upper and lower horizontal rods that connect the above and below to open and close the entrance and exit of the rack, and a pair of upper and lower pivot tools that pivotally support the base side of this fall prevention frame to the support of the rack. , It has a connecting tool that connects the free end side of the fall prevention frame to the shelf material of the rack, and the connecting tool has a vertical hook member attached to the front surface of the shelf material of the rack and a vertical fall prevention frame. It is supported by a rod and has a lock member that can be engaged and disengaged with the vertical hooking member by moving up and down or rotating.

The lock member has a straight lower end and an inverted J-shaped hook at the upper end, and the hook is inserted into and removed from directly above the hook hole of the upper hook member.

Japanese Unexamined Patent Publication No. 2016-2257

In the prior art, the hook on the upper end of the lock member must be aligned not only vertically but also rotated to be inserted directly above the hook hole in order to be inserted into the hook hole of the upper hook member. This alignment is difficult and troublesome.
In addition, since the hook must move upward to above the hook hole of the upper hook, the vertical position of the upper hook with respect to the hook must be accurate, and the spacing between the multiple shelves must be correct. If they are different, it is necessary to prepare a hook that corresponds to the interval, which makes it less versatile.

An object of the present invention is to provide an article fall prevention device capable of solving such problems of the prior art.
An object of the present invention is to provide an article fall prevention device capable of engaging a hooking portion with a hooking groove of an upper hooking member by simply rotating a lock member and facilitating a closing lock operation of a fall prevention frame. ..

Specific means for solving the problem in the present invention are as follows.
First, a fall prevention frame 7 for opening and closing the entrance / exit Ra of the rack R to which a plurality of shelves 3 are attached between the support columns 2 and a base side of the fall prevention frame 7 are pivotally supported by the support 2 of the rack R. The pivot support 8 and the connecting tool 9 for connecting the free end side of the fall prevention frame 7 to the shelf material 3 of the rack R are provided.
The connecting tool 9 is supported by the upper hooking member 20U and the lower hooking member 20D attached to the shelf material 3 of the rack R and the vertical rod 5 of the fall prevention frame 7, and engages with the upper and lower hooking members 20U and 20D. An article fall prevention device having a lock member 21 that can be disengaged and engaged with each other.
The upper hook member 20U has a hook groove K that is open in the horizontal direction, and the lock member 21 is engaged with the hook groove K by rotating around the vertical axis, and is long in the vertical direction. It is characterized by having a part G.

Second, the lock member 21 is supported by the fall prevention frame 7 so as to be vertically movable and rotatably supported. The lock member 21 is provided with a handle 39 for vertically moving and rotating, and the fall prevention frame is provided. 7 is provided with a guide member 40 having a guide groove 41 for guiding the vertical movement and rotation of the handle 39.
The guide groove 41 of the guide member 40 is formed from a state in which the hooking portion G is engaged with the upper hooking member 20U and the horizontal groove 41b that rotates the lock member 21 so as to engage and disengage the engaging portion G with the upper hooking member 20U. It is characterized by having a vertical groove 41a communicating with an end portion of the horizontal groove 41b so as to lower the lock member 21.

Third, the lower hooking member 20D has a hooking hole 36 into which the lower end 21a of the lock member 21 can be inserted while the hooking portion G of the lock member 21 is engaged with the hooking groove K. The engagement portion G of the 21 is separated from the vertical axis in the radial direction and is located parallel to the vertical axis, and has an engagement range L wider than the vertical movement range in which the lower end 21a of the lock member 21 is inserted and removed from the engagement hole 36. It is characterized by.

Fourth, the engaging portion G of the lock member 21 is formed by bending a portion of the lock member 21 facing the upper hooking member 20U into a crank shape.
Fifth, the engaging portion G of the lock member 21 is formed by mounting a front-view U-shaped engaging member 25 on a portion of the lock member 21 facing the upper hooking member 20U so that the vertical position can be adjusted. It is characterized by that.

According to the present invention, the engaging portion can be engaged with the hooking groove of the upper hooking member simply by rotating the lock member, and the closing lock operation of the fall prevention frame can be easily performed.
That is, in the invention according to claim 1, the upper hooking member 20U has a hooking groove K opened in the horizontal direction, and the lock member 21 can be hooked and removed from the hooking groove K by rotating around the vertical axis. Since it has a vertically long engaging portion G that engages with the hooking portion G, the engaging portion G can be engaged with the hooking groove K simply by rotating the lock member 21, and the closing lock operation of the fall prevention frame 7 can be easily performed. ..

According to the second aspect of the present invention, the guide member 40 can guide the vertical movement and rotation of the handle 39, and the engaging portion G of the lock member 21 is unwillingly released from the state of being engaged with the upper hooking member 20U. Can be prevented.
According to the third aspect of the present invention, after the engaging portion G of the lock member 21 is engaged with the hooking groove K by the rotational operation, the lower end 21a of the lock member 21 is lowered to engage the lower hooking member 20D. Since the engagement portion G of the lock member 21 can be engaged with the hole 36 and has a wide engagement range L, the engagement portion G of the lock member 21 and the engagement groove K are maintained even if the lock member 21 is moved up and down. it can. Further, even if the position of the upper hooking member 20U is deviated from the lock member 21 in the vertical direction, the hooking portion G and the hooking groove K can be secured by the wide hooking range L.

In the invention according to claim 4, the engaging portion G can be easily formed only by bending the lock member 21 into a crank shape.
In the invention according to claim 5, the engagement portion G can be easily formed by simply attaching the U-shaped engagement member 25 to the lock member 21, and the vertical position thereof can also be changed.

It is an overall front view of the rack entrance closed state which shows the embodiment of this invention. It is the same overall plan view. It is a front view of the article fall prevention device. It is a front view of the main part. It is a top view of the vicinity of the top hook member. It is a side view of the vicinity of the lower hook member. It is a front view of the main part of the rack entrance / exit closed state which shows the modification of the lock member. It is an X arrow view of FIG. 7. It is a front view of the engaging member.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIGS. 1 to 6, the article fall prevention device 1 is attached to the support column 2 of the rack R.
The rack R is configured by erection of a plurality of columns 2 and attaching the shelf materials 3 to a plurality of stages such as the lower stage, the middle stage, and the upper stage. It is an entrance / exit Ra for loading and unloading articles, and the article fall prevention device 1 is rotatably arranged at the entrance / exit Ra to prevent articles from falling from the entrance / exit Ra in the event of an earthquake.

When the rack R forms a wide entrance / exit Ra between the two columns 2, the article fall prevention device 1 is symmetrically attached to each of the left and right columns 2, and the left and right fall prevention frames 7 are opened and closed in a double-door shape. In FIG. 1, two symmetrical objects are illustrated as an article fall prevention device 1A and an article fall prevention device 1B.
When the rack R has three or more columns 2, two article fall prevention devices 1A are mounted back-to-back symmetrically on the intermediate columns 2.

The article fall prevention device 1 (1A, 1B) is roughly classified into a fall prevention frame 7 (7A, 7B), a pair of upper and lower pivot support tools 8, and a connecting tool 9.
The fall prevention frame 7 is formed in a square frame shape by a pair of left and right vertical rods 5 made of a square pipe material (square pipe) and a pair of upper and lower horizontal rods 6 connecting the upper and lower ends of the left and right vertical rods 5. An auxiliary vertical rod 16 for connecting the upper and lower horizontal rods 6 is provided at an intermediate position between the rods 5. Both the vertical rod 5 and the horizontal rod 6 are square pipes and are welded together. The upper horizontal rod 6 is located above the upper shelf material 3.

In FIGS. 1 to 3, the pair of upper and lower pivots 8 pivotally support the base side (the pivot side) of the fall prevention frame 7 to the support 2 of the rack R. Each of the upper and lower pivots 8 has a pedestal 12 fixed to the support column 2 so as to be vertically adjustable, and a hinge 13 for connecting the pedestal 12 and the fall prevention frame 7.
In FIGS. 1 to 6, the connector 9 is a lock member supported by a vertical hook member 20 (20U, 20D) attached to the front surface of the upper and lower shelf members 3 of the rack R and a vertical rod 5 of the fall prevention frame 7. 21 and.

The lock member 21 is formed of a vertically long rod along the vertical rod 5, and is supported by a plurality of guide members 38 provided on the vertical rod 5 so as to be vertically movable and rotatably supported. A portion facing the upper hooking member 20U) is bent into a crank shape to form a hooking portion G, and a handle 39 is attached to the lower portion.
The engaging portion G is a portion radially separated from the vertical axis (rotation axis) of the lock member 21 and parallel to the vertical axis, is formed long in the vertical direction, and is formed on the upper hooking member 20U. It can be engaged with the hook groove K that is open in the horizontal direction.

The engaging portion G has an engaging range L wider than the vertical movement range in which the lower end 21a of the lock member 21, which will be described later, is inserted and removed from the hook hole 36 of the lower hook member 20D, and moves the lock member 21 up and down. Even so, the engagement between the engagement portion G of the lock member 21 and the engagement groove K is maintained.
In the upper hooking member 20U, the hooking plate 31 is welded to the mounting plate 30 attached to the front surface of the shelf material 3 in a T-shape in a side view. The hook plate 31 is a horizontal plate material, and a hook groove K opened in the horizontal direction is formed on one side, and the opening of the hook groove K is an enlarged guide surface Ka, and the front side is also formed. On the side, a contact portion 20a with which the vertical rod 5 of the fall prevention frame 7 comes into contact is formed.

In the hook groove K, when the lock member 21 is rotated around the vertical axis and the hooking portion G is inserted from the outside through the guide surface Ka, the lock member 21 is placed on the upper hooking member 20U side due to the hooking of the hooking portion G. The vertical rod 5 comes into contact with the contact portion 20a, and the fall prevention frame 7 is fixed at the closed position.
In the lower hooking member 20D, the hooking plate 34 is welded to the mounting plate 33 attached to the front surface of the shelf material 3 in a T-shape in a side view. The shelf material 3 is perforated with a large number of holes 3a in the longitudinal direction, the mounting plate 33 is formed with elongated holes 33a long in the vertical direction, and the mounting plate 33 is a shelf material 3 with bolts penetrating both holes. It is fixed so that the vertical position can be adjusted.

A hook hole 36 penetrating in the vertical direction is formed in the hook plate 34, and a straight lower end 21a of the lock member 21 can be inserted into the hook hole 36. A contact portion with which the vertical rod 5 of the fall prevention frame 7 comes into contact is also formed on the front side side of the lower hook member 20D.
A guide member 40 is provided below the vertical rod 5 of the fall prevention frame 7. The guide member 40 supports the lock member 21 so as to be vertically movable and rotatably, and guides the vertical movement and rotation of the handle 39.

An inverted L-shaped guide groove 41 is formed in the guide member 40, and a handle 39 is inserted therethrough. The guide groove 41 includes a horizontal groove 41b that rotates the lock member 21 so as to engage and disengage the engaging portion G from the upper hooking member 20U, and the lock member 21 from a state in which the engaging portion G is engaged with the upper hooking member 20U. It has an upper and lower groove 41a that communicates with the end of the horizontal groove 41b so as to descend.
When the handle 39 is raised along the vertical groove 41a of the guide groove 41, the lock member 21 is raised, the lower end 21a thereof can be separated from the hook hole 36, and the handle 39 is moved from the raised position to the horizontal groove 41b of the guide groove 41. When rotated along the above, the lock member 21 rotates, the engaging portion G can be separated from the hooking groove K of the upper hooking member 20U, and the fall prevention frame 7 can be opened.

On the contrary, when the open fall prevention frame 7 is closed, the vertical rod 5 comes into contact with the contact portions 20a of the upper and lower hook members 20U and 20D, and the lower end 21a of the lock member 21 is directly above the hook hole 36. The engaging portion G is located outside the upper hooking member 20U.
When the handle 39 is moved from the back of the horizontal groove 41b of the guide groove 41 to the vertical groove 41a side from that state, the lock member 21 is rotated around the vertical axis, and the engaging portion G is the hooking groove K of the upper hooking member 20U. Enter and get engaged.

The handle 39 shifts to the upper and lower grooves 41a of the guide groove 41 to enable lowering, and the handle 39 is pulled down to move the lock member 21 downward, and the lower end 21a thereof is inserted into the hook hole 36. During the downward movement of the lock member 21, the engaging portion G also moves downward, but since it is long in the vertical direction, the engagement with the hook groove K is maintained, and the engagement between the lock member 21 and the hook hole 36 is surely maintained.

When the handle 39 is located in the vertical groove 41a of the guide groove 41, the rotation is prevented even if the handle 39 and the lock member 21 move up and down, so that the engaging portion G engages with the upper hooking member 20U. The state is maintained and the lock member 21 is prevented from being unintentionally disengaged.
A modified example of the lock member 21 is shown in FIGS. 7 to 9, in which the lock member 21 is formed of a square solid rod and is inserted into the circular holes of a plurality (three) guide members 38 provided in the vertical rod 5. A hooking member 25 that is supported so as to be movable up and down and rotatably and forms a long hooking portion G vertically is attached near the upper portion of the straight rod (a portion facing the upper hooking member 20U). A handle 39 is attached to the lower part.

The engaging member 25 is formed by bending the upper and lower portions of a round bar member to form a front-view U-shaped member 25a, and a plan-view U-shaped holding member 25b is fixed to the upper and lower ends of the U-shaped member 25a. The upper and lower sandwiching members 25b are fitted to the lock member 21 having a quadrangular cross section, and are fixed by sandwiching and fastening with fasteners 26 such as screws and bolts.
In the engaging member 25, the vertical portion of the U-shaped member 25a is the engaging portion G, and a long groove can be formed vertically between the engaging member 25 and the locking member 21. By loosening the fastener 26, the locking member 21 can be formed. The vertical position with respect to the lock member 25b can be changed, and the holding member 25b can rotate integrally with the lock member 21 by coming into contact with the two or three surfaces of the lock member 21.

The engaging portion G of the engaging member 25 is a portion in which the vertical portion of the U-shaped member 25a is radially separated from the vertical axis (rotation axis) of the lock member 21 and parallel to the vertical axis, and is formed long in the vertical direction. It is possible to engage with the hook groove K formed in the upper hook member 20U and which is open in the horizontally direction.
The engaging portion G has an engaging range L wider than the vertical movement range in which the lower end 21a of the lock member 21 is inserted and removed from the hook hole 36 of the lower hook member 20D, and even if the lock member 21 is moved up and down. , The engagement between the engagement portion G of the lock member 21 and the engagement groove K is maintained.

In the present invention, it is best to configure the shape of each member in the embodiment and the positional relationship between the front and back, the left and right, and the top and bottom as shown in FIGS. 1 to 9. However, the present invention is not limited to the above embodiment, and the members and configurations can be variously modified or combinations can be changed.
For example, the lock member 21 has a hooking portion G formed on both upper and lower portions, and the lower hooking member 20D is a member having a hooking groove K opened in the same horizontal direction as the upper hooking member 20U, and the lock member 21 is rotated. It may be configured to engage with and disengage from the upper and lower hook members 20U and 20D simply by doing so.

Further, the engaging member 25 of the lock member 21 has the upper and lower ends of the round bar member as free ends, and only the other end is bent to form an L-shape in a front view, and the holding member 25b is fixed to the bent other end. The sandwiching member 25b may be fitted to the lock member 21 having a quadrangular cross section and mounted so that the vertical position can be freely changed.

1 Article fall prevention device 2 Supports 3 Shelf material 5 Vertical rod 6 Horizontal rod 7 Fall prevention frame 8 Pivot support 9 Connector 12 Base 13 Hinge 20D Lower hook member 20U Upper hook member 21 Lock member 25 Hook member 36 Stop hole 39 Handle 40 Guide member 41 Guide groove 41a Vertical groove 41b Horizontal groove G Engagement part K Engagement groove Ka Guidance surface R Rack Ra Doorway

Claims (5)

A fall prevention frame (7) that can open and close the entrance (Ra) of the rack (R) to which a plurality of shelves (3) are attached between the columns (2), and the base side of the fall prevention frame (7). A connecting tool (8) that pivotally supports the support (2) of the rack (R) and a connecting tool (9) that connects the free end side of the fall prevention frame (7) to the shelf material (3) of the rack (R). And have
The connecting tool (9) includes an upper hooking member (20U) and a lower hooking member (20D) attached to the shelf material (3) of the rack (R), and a vertical rod (5) of the fall prevention frame (7). An article fall prevention device having a vertical hooking member (20U, 20D) and a lock member (21) that is supported by the vehicle and engages with and disengages freely.
The upper hook member (20U) has a hook groove (K) opened in the horizontal direction, and the lock member (21) can be hooked and detached from the hook groove (K) by rotating around the vertical axis. An article fall prevention device characterized by having a vertically long engaging portion (G) that engages with. The lock member (21) is supported by a fall prevention frame (7) so as to be vertically movable and rotatable, and the lock member (21) is provided with a handle (39) for vertically moving and rotating. The fall prevention frame (7) is provided with a guide member (40) having a guide groove (41) for guiding the vertical movement and rotation of the handle (39).
The guide groove (41) of the guide member (40) includes a horizontal groove (41b) that rotates the lock member (21) so as to engage and disengage the engaging portion (G) from the upper hooking member (20U), and the engaging portion. It is characterized by having a vertical groove (41a) communicating with an end portion of the horizontal groove (41b) so as to lower the lock member (21) from a state in which (G) is engaged with the upper hooking member (20U). The article fall prevention device according to claim 1. The lower hooking member (20D) has a hooking hole into which the lower end (21a) of the lock member (21) can be inserted while the hooking portion (G) of the lock member (21) is engaged with the hooking groove (K). (36), the engaging portion (G) of the lock member (21) is radially separated from the vertical axis and is located parallel to the vertical axis, and the lower end (21a) of the lock member (21) is hooked. The article fall prevention device according to claim 1 or 2, further comprising an engagement range (L) wider than a vertical movement range for inserting and removing from the stop hole (36). Claim 1 is characterized in that the engaging portion (G) of the lock member (21) is formed by bending a portion of the lock member (21) facing the upper hook member (20U) into a crank shape. The article fall prevention device according to any one of 3 to 3. In the engaging portion (G) of the lock member (21), a front-view U-shaped engaging member (25) is mounted on a portion of the lock member (21) facing the upper hook member (20U) so that the vertical position can be adjusted. The article fall prevention device according to any one of claims 1 to 3, wherein the article is formed.

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