JPS6222486Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a locking device for a multi-drawer shelf in a rack for storing articles.

In factories, warehouses, etc., when a rack is constructed with multiple shelves on which goods can be placed, each of which can be pulled out and moved freely, when one shelf is pulled out from the rack body and goods are loaded or unloaded onto it, the other shelves are unloaded. If a shelf is carelessly pulled forward, it may interfere with loading and unloading, and if two or more shelves are pulled forward at the same time when each shelf is loaded with cargo, the center of gravity of the rack as a whole will shift to the front. , there is a risk that the entire rack will fall forward.

Therefore, in the present invention, if one of the multi-tiered shelves is pulled out, a double-drawer prevention means is provided in the rack body, which makes it impossible to pull out the other shelves forward. This is intended to ensure convenience when carrying the rack and safety by preventing the rack from falling over, and also to allow the double drawer prevention means to be easily incorporated into the rack body.

Next, the present invention will be explained based on an example.
This figure shows a rack main body in which side frames 4 connected at 3 are erected at appropriate distances from each other to the left and right via cross beams 5 in the opening direction.

Reference numerals 6, 6, and 6 indicate shelves that are disposed in multiple stages up and down between the left and right side frames 4, 4 of the rack main body 1, and are movable back and forth, respectively. 7 is formed into a U-shaped cross section, with the openings thereof facing outward, and wheels 9, 9 that fit on rails 8, 8, which will be described later, are rotatably supported at the rear ends of both side members 7, 7. . 8, 8 are side members 7, 7 of the shelf 6 so as to guide and support both left and right sides of the shelf 6 in the front and back direction.
When arranging both rails 8, 8 inside the left and right side frames 4, 4 at the same height and facing each other substantially horizontally, Brackets 10, 10' having an L-shaped cross section or the like are fixed to the front and rear, and both brackets 10,
10' are brought into contact with the side surfaces of the front and rear struts 2, 2' and fixed with bolts or the like. Also, left and right front brackets 1
0 and 10 are the left and right side members 7 of the shelf 6, respectively.
Support rollers 11, 11 are provided to support the lower surface of 7.

Reference numerals 12 and 13 denote a forward movement prevention stopper portion and a backward movement prevention stopper portion, which are formed on the outer edge of the side member 7 on either the right or left side of the shelf 6 at appropriate distances in the front and rear directions along the front and back direction of the drawer of the shelf 6. In the embodiment shown in FIG. 3, the outer edge of the upper plate of the left side member 7 of the shelf is cut out in a rectangular shape in plan view by an appropriate width to form a forward-preventing stopper portion 12 and a backward-preventing stopper portion 13, respectively.

Reference numeral 14 denotes a locking body provided at a position close to the front of the outer surface of the rail 8 facing one side edge of the shelf where the stopper parts 12 and 13 are provided, so that the front part faces the front surface of the rack main body 1. , the locking body 14 is attached to the horizontal axis 15
The support bracket 20 is supported such that it can move up and down and tilt in a substantially horizontal direction perpendicular to the moving direction of the shelf 6, and its lower end base is connected to the outer surface 21 of the rail 8.
The upper half vertical part 22 of the support bracket 20 is fixed by welding to the outer edge 23 of the side member 7 of the shelf with a dimension l ₁
Stand apart from each other.

The upper vertical portion 2 of this support bracket 20
2, a horizontal shaft 15 is horizontally projected perpendicular to the moving direction of the shelf 6, a collar 24 is fitted onto the horizontal shaft 15, a spacer 25 having a thickness h ₁ is fitted onto the collar 24, and the locking body 14 The midway hole 26 is loosely fitted into the collar 24.

The locking body 14 is formed so that the center of gravity is closer to the front.
A locking portion 17, which can be locked to both stopper portions 12, 13 by downward movement of the front portion, is provided at the lower front end of the
17' is formed into a downwardly stepped shape, while the locking body 1
A contact portion 16 is provided at the rear of the shelf 4 to protrude toward the center of the shelf perpendicular to the direction of movement of the shelf.

Further, on the inner surface of the bracket 10, there is a cradle 18 for supporting the front part of the locking body 14 in an upward direction.
The locking body 1 is provided on the upper surface of one side member 7 of the shelf 6 as the shelf 6 moves forward or backward.
4. A guide body 19 is provided which abuts on the rear abutment part 16 and tilts the front part of the locking body 14 toward the center of the shelf to remove it from the pedestal 18.

27 is a means for preventing double drawer of the shelf, and the locking body 14
A vertical rod 28 is suspended vertically movably along the outer surface 21 of the rail 8 adjacent to a support bracket 20 that supports the rail 8, and a stopper 29 is provided on the vertical rod 28 at each height position of each shelf 6. and a roller-like abutment 30, a front-rear longitudinal guide 31 that abuts the abutment 30 and moves the vertical rod 28 up and down by a dimension H when it moves back and forth on each shelf, and the locking body 14.
It consists of a latch piece 32 provided at.

Each component of this double drawer prevention means 27 is constructed so that it can be easily additionally assembled or disassembled and removed when the locking body 14 is assembled.

That is, the latch piece 32 is fitted into the upper surface of the locking body 14 at the stepped portion 33 so as to rotate integrally with the locking body 14, and is fitted into the collar 24 on the outer periphery of the bolt-shaped horizontal shaft 15. It is made by fitting. On the other hand, a holding part 35 having a U-shaped cross section of the holding body 34 which is clamped on the back surface of the support bracket 20 via the bolt-shaped horizontal shaft 15 is inserted between the bracket 10 at the front end of the rail 8 and the support bracket 20. The holding portion 35 holds and supports the vertical rod 28 from the back side. Further, the vertical rod 28 is provided with the roller-shaped abutment 30 at the lower part,
A member 36 having a stopper 29 projecting rearward from the upper part is detachably attached with screws 37, 37, etc.

The stopper 29 is located near the latch piece 32 of the locking body 14, and is attached to the vertical rod 28 in the lowered state when the front portion of the locking body 14 is rotated upward and supported by the pedestal 18. A latch piece 32 is located above and behind the stopper 29, and the latch piece 32
When the locking part 17 in 4 fits into the forward movement prevention stopper part 12 of the shelf 6, the latch piece 32 is positioned above and in front of the stopper 29,
When the locking part 17 of the locking body 14 fits into the forward movement prevention stopper part 12 of the shelf 6 in a state where the vertical rod 28 is raised by the dimension H, the latch piece 32
is on the front side of the stopper 29 and at approximately the same height, and when trying to rotate the locking body 14 upward, the latch piece 32 comes into contact with the front surface of the stopper 29, making it impossible to rotate the locking body 14 upward. It is intended to be related to

With this configuration, when the locking body 14 is placed on the pedestal 18 with the front part facing upward as shown by the dashed line in FIGS. 6 and 7, the front locking body 14 17 is removed from the forward-preventing stopper portion 12, while the locking body 14, which is tiltably supported by the horizontal shaft 15, is tilted so that its rear portion approaches the center side of the shelf.

When the shelf 6 is pulled out in this state, the guide body 19 on the one side member 7 of the shelf
6, the rear part is tilted away from the center side of the shelf and the front part is tilted closer to the shelf, and as the locking body 14 is tilted, the front part of the locking body 14 is disengaged from the pedestal 18 and moves downward.

Then, as shown in the upper shelf of FIG. 5, the shelf is pulled out by a certain distance, and when the retreat prevention stopper part 13 at the rear of the shelf aligns with the locking part 17' of the locking body 14, it fits into this and prevents the shelf from retreating. can.

When pushing in the shelf, if the shelf is completely pushed in in the same manner as described above, it is possible to prevent the shelf from being pulled out. In this way, the locking operation of the shelf can be performed after the shelf has been pulled out or pushed in by simply placing the front part of the locking body 14 on the cradle 18 in order to release the lock from the shelf before moving the shelf back and forth. This makes it possible to simplify the operation of the lock and prevent malfunctions.

When all the shelves are pushed into the rack main body 1 and the locking body 14 of the shelf 6 to be pulled out is placed on the holder 18 of the side frame 4, the locking body 14 of the shelf 6 to be pulled out is placed on the holder 18 of the side frame 4, as shown by the dashed line in FIG. The latch piece 32 on the stopper 14 is inclined so as to be located rearward than the stopper 29 on the vertical rod 28. When the shelf is pulled out in this state, the guide 31 pushes up the abutment 30 of the vertical rod 28 by a height H, and the stopper 2 at each shelf location
9 is raised by a height H, and the stopper piece 29 is located behind the latch piece 32 of the locking body 14 that is locked to the stopper part 12 for preventing the shelf from advancing in the stored state (see the lower shelf in FIG. 5). , the locking body 14 cannot be rotated upward, and therefore the shelf in the stored state cannot be pulled out, thereby preventing double drawing of the shelf and preventing the entire rack from falling over due to forward movement of the center of gravity.

In this case, the upper part 17 of the stepped locking part of the locking body 14 for each shelf is formed longitudinally in the front and back, and the lower part 17' is short. If the upper part 17 is formed in the shape of a longitudinal longitudinal groove into which the upper part 17 fits, and the retreat prevention stopper part 13 is formed into a short groove in the front and back into which only the lower part 17' is fitted, the locking part can be secured when the shelf is pulled out. When the locking member 17' is fitted into the retreat preventing stopper portion 13, the locking member 14 can be held tilted to such an extent that the latch piece 32 thereof does not come into contact with the stopper 29 of the vertical rod 28.

Note that, as shown in FIGS. 11 and 12, when each part of the double drawer prevention means 27 is removed and only the locking body 14 is attached, the locking body 14 and the support bracket 20 that loosely fit on the horizontal shaft 15 are removed. By fitting another spacer 38 equal to the thickness of the base of the stopper 29 between the spacer 25 and the stopper 29, the collar 24 can be used in common without changing the dimensions, and additional installation or removal of the means is also possible. It's easy to do.

In summary, the present invention supports a shelf between the left and right rails provided in multiple stages on the rack main body so that the shelves can be drawn out and moved forward and backward, and one side member of each shelf is provided with a stopper part for preventing movement of the shelf and a stopper part for preventing the movement of the shelf. Support brackets are provided at appropriate intervals along the direction, and attached to the rail adjacent to both stopper parts, so that the support brackets are movable up and down in the front and back part of the locking body, and are tiltable in a substantially horizontal direction perpendicular to the direction of movement of the shelf. The locking body is formed with a locking part that can be locked to the stopper part by downward movement of the front part, the front part of the locking body faces the front surface of the rack main body, and outside of the rail, The vertical rod is suspended so as to be able to move up and down, and the vertical rod is configured to be held in a state where the vertical rod is raised by an appropriate dimension as one of the shelves moves forward, and the vertical rod includes a , is provided with a stopper that disables the upward rotation of the locking body on the stored shelf, so that if any one of the multiple shelves is pulled out,
The other shelves cannot be pulled out, which is convenient because there is no need for other shelves to move accidentally when loading and unloading items, and the center of gravity of the entire rack is not shifted to the front, which improves safety. have

In addition, since the holding body of the vertical rod and the latch piece can be detachably attached in relation to the horizontal axis attached to the support bracket that supports the locking body, it is possible to additionally incorporate or disassemble and remove the double drawer prevention means. It also has the effect of making it easier.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of the rack, Fig. 2 is a side view, Fig. 3 is a plan view taken along the - line in Fig. 2, and Fig. 4 is a front view taken along the - line in Fig. 2. Fig. 5 is an explanatory diagram of the action of the double drawer prevention means, Fig. 6 is a side view of the main part, and Fig. 7 is a - of Fig. 6.
8 is a sectional view taken along the - line in FIG. 6, FIG. 9 is a sectional view taken along the - line in FIG. 8, and FIG.
11 is a side view of the main part with the double drawer prevention means removed, and FIG. 12 is a view taken along the line XII-XII of FIG. 11. 1... Rack body, 4, 4... Side frame, 6...
Shelf, 7, 7... Side member, 8, 8... Rail, 12
... Advance prevention stopper part, 13 ... Retreat prevention stopper part, 14 ... Locking body, 15 ... Horizontal shaft, 16 ...
...Abutting part, 17, 17'...Locking part, 28...Vertical rod, 31...Guide, 30...Abutment, 32...
Latch piece, 29... stopper, 20... support bracket.

Claims (1)

[Scope of utility model registration request] The shelves are supported between the left and right rails provided in multiple stages on the rack main body so that they can be pulled out and moved forward and backward, and one side member of each shelf has a forward-preventing stopper portion and a backward-preventing stopper portion separated appropriately along the direction of movement of the shelf. A supporting bracket attached to the rail adjacent to both stopper parts supports the front and rear part of the locking body so that it can move up and down, and can tilt in a substantially horizontal direction perpendicular to the direction of movement of each shelf. The body is formed with a locking part that can be locked to the stopper part by the downward movement of the front part, the front part of the locking body faces the front surface of the rack body, and the vertical rod is placed on the outside of the rail so that it can be moved up and down. The structure is configured such that the vertical rod can be suspended freely and held in a state where it is raised by an appropriate dimension as one of the shelves moves forward, and the vertical rod has a structure in which, when the vertical rod is in the raised state, A locking device for a multi-stage drawer shelf, which is provided with a stopper that prevents upward rotation of a locking body.