JPS6342834Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a rack for storing goods used in factories and warehouses, in which shelves configured to be movable back and forth are held in a storage position and a drawer position. This relates to locking devices.

[Conventional technology]

In racks with shelves that can be freely moved forward and backward, the shelves can be held in the storage position and the drawer position to prevent the shelves from unexpectedly protruding from the storage state and to prevent the shelves from unexpectedly retreating when loading and unloading items. A suitable locking device is required.

As an example of this locking device,
The publication discloses that in a rack in which a shelf is mounted between left and right side frames so as to be movable back and forth, stoppers are provided protruding from one side edge of the shelf at appropriate distances from the front and back, and the back of the front stopper and the front of the rear stopper are provided. and are respectively formed into inclined guide surfaces, while a longitudinal longitudinal locking rod is pivotally supported on the inner surface of the front end of the side frame so as to be movable up and down, and the tip of the locking rod is brought into contact with the top surface of the shelf. , a locking pawl that engages with the stopper is provided at the tip of the locking rod in a horizontally protruding manner, and the locking pawl is guided upward by the inclined guide surface of the stopper. A device has been disclosed in which the locking rod engages with each stopper in a so-called kick-in manner as the vehicle moves forward and backward.

[The problem that the idea attempts to solve]

However, although this device can automatically lock the shelf by a so-called kick-in action as the shelf moves back and forth, the locking rods only move up and down, so the shelf cannot be unlocked. When doing so, rotate the locking rod upward with one hand, keeping the locking claw disengaged from the stopper, and
It is necessary to move the shelf back and forth to a certain extent with one hand so that even if the locking rod is rotated downward, it will not engage with the stopper, which makes it troublesome to release the lock and move the shelf back and forth. There was a problem.

In other words, the worker is forced to move the shelf back and forth with one hand when unlocking, making the unlocking work cumbersome and labor-intensive. In particular, if the shelf is deep, the operator must stand on the side of the shelf to pull out the shelf, which causes serious damage to the worker's clothes due to the awkward posture.

In addition, the tip of the locking rod is in contact with the top surface of the shelf, and as the shelf moves back and forth, the shelf and the locking rod will rub against each other, causing damage to the shelf and producing a scraping sound. There was also the problem of causing discomfort to those around them.

The present invention aims to solve these problems.

[Means to solve the problem]

In order to achieve this object, the present invention provides a rack in which a shelf is mounted between left and right side frames so as to be movable back and forth, and a longitudinal lock is provided at an appropriate position above the shelf on the inner surface of the front end of the side frame. A rod is rotatably supported around its axis, an operating portion is formed at the front end of the locking rod, and a locking portion extending downward toward the upper surface of one side edge of the shelf is provided at the rear end of the locking rod. are integrally connected, while a front stopper and a rear stopper are protruded from one side edge of the shelf to be appropriately separated from each other in the front and rear, and on one side of either the left or right of these front and rear stoppers,
A notch is formed on one side of the rear end of the front stopper and one side of the front end of the rear stopper to form a notch with which the tip of the locking part of the locking rod engages from the side. An inclined guide surface is formed to laterally guide the locking portion of the locking rod as the locking lever moves, and the other side surfaces of both the front and rear stoppers are formed in a linear shape extending back and forth in plan view. did.

[Functions and effects of the idea]

In the above configuration, when the locking portion of the locking rod is located between the front and rear stoppers, the locking portion is in a hanging state due to its own weight, and when the shelf is moved back and forth,
After the locking portion is guided and rotated by the inclined guide surface of one of the stoppers, the locking portion engages with the engaging portion of the stopper to lock the shelf in the storage position or the drawer position.

Then, when the operating part is rotated in the locked state and the locking lever is rotated once in the direction in which the locking part disengages from the stopper, the locking part of the locking rod and the engaging part of the stopper are engaged with each other. When the lock is released and the lock is released, the locking part of the locking rod comes into contact with the other side of the stopper, but since the other sides of both stoppers are formed in a longitudinally straight line in plan view, the locking part is This means that the shelf can be moved back and forth while still in contact.

In other words, the shelf can be held in the unlocked state by rotating the operating portion of the locking lever, and the shelf is automatically locked when the shelf is moved back and forth from the unlocked state.

Therefore, although the present invention is capable of automatically locking the shelf as it moves back and forth, the unlocked state can be maintained simply by rotating the operation unit, and the operator can unlock the shelf with one hand and then use both hands. Since the shelves can be moved back and forth, the efficiency of loading and unloading articles can be improved and the burden on workers can be reduced.

Moreover, the locking parts of the locking rods do not touch the top surface of the shelf and do not rub against each other when the shelf moves back and forth, so the provision of the locking device prevents the shelf from being damaged or causing scraping noise. It also has the effect of reliably preventing discomfort from causing discomfort to those around you.

〔Example〕

Next, an embodiment of the present invention will be explained based on the drawings. In the drawings, reference numeral 1 indicates a shelf 6 between the left and right side frames 4
This shows a rack that can be moved forward and backward and is mounted in multiple stages above and below. The side frame 4 is formed by connecting a pair of front and rear columns 2, 2' with a cross beam 3 in the depth direction, and these left and right side frames 4 are connected by a cross beam 5 in the opening direction.

A U-shaped side member 7 with an outward opening is fixed to both the left and right sides of the shelf 6, and a roller 9 is pivotally supported at the rear end of the side member 7, while the front and rear supports 2 of the left and right side frames 4 , 2', an inwardly U-shaped rail 8 is fixed via brackets 10, 10' having an L-shaped cross section, and a rail 8 is provided within the rail 8 at the rear end of the side member 7. A roller 9 is rotatably fitted therein, and a roller 11 is pivotally supported on a bracket 10 fixed to the front column 2, and the lower surface of the side member 7 of the shelf 6 is supported by the roller 11.

A locking rod 14 extending along the front-rear direction is provided on the inner surface of the front support 2 at a portion appropriately above the shelf 6, and a bearing body 1 is fixed to the bracket 10.
A knob-like operating portion 15 is formed at the tip of the locking rod 14, while an upper surface of one side edge of the shelf 6 is provided at the rear end of the locking rod 14. The locking part 16 extending downward toward the front is integrally bent and held in a hanging state by its own weight, and the locking part 16 can be rotated 360 degrees by rotating the operation part 15. Make it as you like.

On the upper surface of one side edge of the shelf 6, a portion located near the locking rod 6 when the shelf 6 is pushed in, and a portion located near the locking rod 14 when the shelf 6 is pulled out. A front stopper 12 and a rear stopper 13, which are longitudinally longitudinal, are provided in a protruding manner. Engagement parts 18 and 20, which are engaged with the locking part 16 of the locking rod 14 in a hanging state, are formed in one side surface of both of these stoppers 12 and 13, respectively. is the locking portion 1 of the locking rod 14 as the shelf 6 is pushed in.
An inclined guide part 19 is formed on one side of the tip end of the rear stopper 13 to rotate the locking rod 14 laterally as the shelf 6 is pulled out. Inclined guide surface 2 for rotational guidance
form 1.

Other side surfaces 19', 2 of both front and rear stoppers 12, 13
1' are each formed into a straight line in the front and rear longitudinal directions when viewed from above. In addition, the front and rear stoppers 12 and 13 have other side surfaces 19' and 21' in a hanging state so that the locking portions 17 of the locking rods 14 come into contact with the respective inclined surfaces 19 and 21 as the shelf 6 moves back and forth. Locking part 1 in
The shelf 6 is disposed so as to be shifted to the side of the shelf 6 by an appropriate dimension (e) from the axis of the shelf 6.

In addition, regulating bodies 22 and 23 for regulating the maximum draw-out position of the shelf 6 are fixed to the upper surface of the front end of the rail 8 and the inner surface of the rear end of the side member 7.

In the above configuration, when the shelf 6 is pushed in, the locking portion 16 of the locking rod 14 engages the engaging portion 1 of the front stopper 12, as shown in FIGS.
8, and the shelf 6 is locked so that it cannot be pulled out. From this state, when the operating portion 15 of the locking rod 14 is rotated once counterclockwise (direction A), the locking portion 1
6 also rotates integrally to release the engagement with the engaging portion 18 and come into contact with the other side surface 19' of the front stopper 12,
The shelf 6 is unlocked and can be freely drawn out.

When the shelf 6 is pulled out, the locking part 16 of the locking rod 14 returns to the hanging state as shown by arrow B in FIG. After being guided and rotated in the direction of the interior of the shelf 6 as shown by arrow E, when it comes off the inclined guide surface 21, it engages with the engaging portion 21 of the rear stopper 13 due to its own weight, making it impossible to push the shelf 6 in the drawn state. Lock. Unlocking the shelf 6 that has been pulled out is the same as described above, and all that is required is to turn the operating portion 15 of the locking rod 14 counterclockwise once, and the locking portion 16 of the locking rod 14 is moved as shown by arrow D in FIG. When the shelf 6 is rotated and returned to the hanging state, and the shelf 6 is pushed all the way in, it is rotationally guided by the inclined guide surface of the front stopper 12 as shown by arrow C, and then the engaging portion of the front stopper 12 18, and the shelf 6 is locked in the stored state so that it cannot be pulled out.

Incidentally, the inclined guide surfaces 19 and 21 of both the front and rear stoppers 12 and 13 may be provided so as to face the outside of the shelf 6, and in this case, the direction of rotation of the operation part 15 when releasing the lock is clockwise. Only. Further, the inclined guide surface 19 of the front stopper 12 and the inclined guide surface 21 of the rear stopper 13 may be formed so as to face in opposite left and right directions. The situation is reversed when you withdraw the data.

Further, although the operating portion 15 is formed in the shape of a circular knob, it may also be formed by bending the tip of the locking rod 14 into an L-shape. In this way, the moment of inertia during rotation of the locking rod 14 increases due to the weight of the locking portion 16 and the operating portion 15, so that the locking portion 16 and both stoppers 12 and 13 are more securely engaged. In addition, the posture of the operating section 15 and the locking section 16
Since the postures of the rack 1 and the rack 1 coincide with each other, there is an advantage that the engaged state of the locking portion 16 can be confirmed from the front of the rack 1.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of the rack body, Fig. 2 is a side view, Fig. 3 is a plan view from - of Fig. 2, and Fig. 4 is a - view of Fig. 3. FIG. 5 is a cross-sectional view taken from the side of FIG. 4, FIG. 6 is a view taken from the side of FIG. 4, and FIGS. 7 and 8 are views showing the operation. 1... Rack, 2, 2'... Support, 4... Side frame,
6...Shelf, 7...Shelf side member, 8...Rail, 1
2... Front stopper, 13... Rear stopper, 1
4...Lock rod, 15... Operating portion, 16... Locking portion, 18, 20... Engaging portion, 19, 21... Inclined guide surface, 19', 21'... Other side surface.

Claims (1)

[Scope of utility model registration request] In a rack in which a shelf is mounted between left and right side frames so as to be freely movable back and forth, a longitudinally longitudinal locking rod is provided at an appropriate upper portion of the inner surface of the front end of the side frame above the shelf, and is rotatably pivoted around its axis. An operating part is formed at the front end of the locking rod, and a locking part extending downward toward the upper surface of one side edge of the shelf is integrally connected to the rear end of the locking rod. A front stopper and a rear stopper are protruded from one side edge at appropriate distances from each other in the front and back, and the tip of the locking part of the locking rod engages with one side of either the left or right of these front and rear stoppers from the side. Notches are formed in the engaging portions, and the locking portions of the locking rods are formed on one side of the rear end of the front stopper and one side of the front end of the rear stopper so that the locking portions of the locking rods move laterally as the shelf moves back and forth. forming an inclined guide surface for rotational guidance, and the other side of the front and rear stoppers;
A locking device for a pull-out shelf in a rack, characterized in that it is formed in a straight line extending front and back in plan view.