JPS5922853Y2 - Lock and release device for opening/closing doors in goods storage shelves - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a locking device for an opening/closing door in an article storage shelf.

It is preferable to install a protective fence on the article storage shelf as a means to prevent articles from falling. Especially when disasters such as earthquakes are taken into account, the installation of the protective fence becomes unnecessary.

However, if the above-mentioned protective fence is installed, the workability becomes worse and it takes a lot of time to bring in and take out articles, which is not preferable because the original function as an article storage shelf cannot be fully exerted.

Therefore, it is desired that the protective fence can be opened and closed quickly and locked reliably, and that it does not interfere with the loading and unloading of articles.

The present invention is based on the above points, and provides a locking device for an opening/closing door that can be reliably locked in one-touch operation to open/close the opening/closing door for preventing articles from falling.

Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments.

FIG. 1 shows an embodiment of an article storage shelf, in which the front supports 1a, lb and the back support 2a are erected.

Frames 3a, 3b and side plates 4a, 4b are horizontally suspended between frames 3a, 3b and side plates 4a, 4b, and a shelf board 5 is installed between the frames 3 and side plates 4 to form one article storage shelf.

Furthermore, the front side of the article storage shelf, that is, the front support 1a, lb
An opening/closing door 7 which opens and closes via a hinge 6 is installed on a frame 3b horizontally suspended between the two, and a locking device R for opening/closing is attached to the opening/closing door 7.

FIG. 2 shows an enlarged view of the opening/closing door 7, and the layer 7 is configured to pivot toward the front about the hinge 6 to open and close.

At this time, the opening/closing operation of the door 7 is performed by the locking device R being operated so that the claws 8a and 8b engage with the posts 1a and 1b, or the claws 8 are released from the posts 1.

That is, in the locking device shown in FIGS. 3 and 4, the frame member 9 of the door 7 is divided into two parts in the middle, and the two halves of the frame member 9 are integrally fixed by a bracket l-10 having a U-shaped cross section. connected.

An operating lever 11 having an inverted U-shaped cross section is supported pivotably on the bracket 10, and a support plate 13 is provided at the bottom of the bracket 10.
is fixed to the support plate 13, and a pivot lever 4 and a swing lever 15 are supported by shafts 16 and 17.

Further, at the other end of the swing lever 15, a roller 18 that rotates while abutting against the inner surface 11a of the operating lever 11 is supported by a shaft 19.
At the same time, one end of the link 20 is pivoted 21, and the other end of the link 20 is pivoted 24 to a connecting member 23-1 connected to the claw 8a via a pin 22.

Also, one end of the pivot lever 14 is attached to a link 20 with a pivot 25.
The other end is pivotally supported 26 by a connecting member 23-2 that is connected to the aforementioned claw 8b via a pin (not shown).

Incidentally, the connecting members 23-1 and 23-2 have long grooves 23a formed in the connecting parts 23-1 and 23-2, and when locking the door 7, the claw 8 fixed integrally with the pin 22 retreats against the spring 27. This prevents the connecting member 23 from moving in conjunction with the movement of the pin 22.

Others 28 are fixed to one end of the frame member 9 by a force-id plate that guides and positions the claws 8 and springs 27.

Note that the pin 22 fitting portion of the guide plate 28 has at least the pin 2
A recess 28a larger than the maximum movement amount of 2 is formed.

Further, 29 is a stopper fixed to the front support column 1a and used to restrict the position when the opening/closing door 7 is locked by the closing operation.

The operation will be explained in detail below.

The release operation of the lock device R of the opening/closing door 7 is shown in FIGS. 5 and 6.

As shown in FIG. 7, the locking operation does not require any special operation and can be locked simply by closing the opening/closing door 7.

That is, when the opening/closing door 7 is turned in the direction of the arrow A about the hinge 6 described above, the claw 8a-1, which is always in the advanced state due to the bias of the spring 27, comes into contact with the outer circumferential surface 1C of the front strut 1a. , the inclined surface 8C formed at the tip of the claw 8a is pressed against the outer circumferential surface 1C of the support column 1a, and the claw 8a-2 retreats in the direction of arrow B against the spring 27.

Furthermore, the opening/closing door 7 is fixed to the side surface of the support column 1a through the base 1 to the flange.
29, the pawl 8a is biased by the spring 27 and fits into the hole 1d formed in the column 1a, and at this point the opening/closing door 7 is completely locked.

In addition, in the locking operation of the opening/closing door 7, the movement of the pin 22 interlocked with the pawl 8a only slides in the long groove 23a formed in the connecting member 23-1, and does not affect the connecting member 23-1 at all. .

Further, the unlocking operation of the locking device R is performed by pressing the operating lever 11 shown in FIGS. 5 and 6 in the direction of the arrow.

That is, by pressing the operating lever 11, the shaft 12
Turn counterclockwise around the fulcrum, turn to a position where it abuts the frame member 9, and then swivel.

At this time, the roller 18 of the swing lever 15, which is supported 17 on the support plate 13, comes into contact with the inner surface 11a of the operating lever 11 and rotates, while at the same time swinging counterclockwise about the shaft 17 as a fulcrum.

As the swing lever 15 swings, the swing lever 14, which is pivoted 16 on the support plate 13 via the link 20, also swings counterclockwise, and pivots 25, 26 are provided at both ends of the swing lever 14. The connecting members 23-1 and 23-2 connected to the claw 8
a, 8b are moved in the direction of unlocking, and the pawl 8 is further moved in the direction of arrow B against the spring 27 via the pin 22 shown in the seventh figure, and the lock is released.

Note that the operating lever 11 is held in place by the claw 8 by a spring 27.
The link 20
, via the swing lever 15 and the roller 18, is always at a position rotated clockwise around the shaft 12 (solid line position shown in the sixth figure).

Further, the locking device R can be easily released by simply holding the operating lever 11 together with the bracket 10 by hand.

In this embodiment, a configuration is shown in which the frame member 9 is partially connected to the bracket 1 by 10, but it is of course possible to configure the frame member 9 integrally without providing the bracket 10.

Further, the locking device R of the present invention is not limited to an article storage shelf.

As described above, in the present invention, the locking and releasing operations of the opening/closing door for preventing articles from falling can be operated by simply grasping the operating lever with the hand and opening/closing the door without requiring any special operations. There will be no hindrance to transport.

Also, it is safe because it is securely locked.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the article storage shelf, Fig. 2 is an enlarged view of the opening/closing door, Figs. 3 to 4 are a sectional plan view and side view of the locking device, and Figs. The figures are a sectional plan view and a side view showing the operating state of the locking device, and FIG. 7 is a partial sectional view showing the operating state of the claw portion. ]...Post, 7...Opening/closing door, 8...
...Claw, 9...Frame member, 11...Operation lever, 14...Swivel lever, 15...
... Swing lever, 18... Roller, 20...
...Link, 23...Connecting member, 27...
... Spring, 10 ... Frame Village, 11 a
・・・・・・Operation Lenoku one circular surface, 12・・・・・・Axis,
17... Axis.

Claims (1)

[Scope of utility model registration request] At all times, external 15
An operating lever for releasing the lock is pivotally supported near the middle of the frame member, and one end is pivotally supported on a fixed shaft in the middle of the frame member, and the other end is pivotably supported by a fixed shaft in the middle of the frame member. A swinging lever having a rotatable roller is provided so that the roller is in contact with the inner surface of the operating lever, and a connecting member for retracting the one pawl by the operating lever is pivotally supported on the swinging lever via a link. Further, a swing lever is pivotally supported at a fixed position opposite to the swing lever, one end of the swing lever is pivotally supported by the link, and the other end is pivotally supported by a connecting member connected to the other pawl. and further, the mounting position of the swinging lever is such that when the operating lever is turned in a fixed direction around the axis of the lever, the swinging lever swings in a direction to retract the pawl via a link. A locking and releasing device for an opening/closing door in an article storage shelf, characterized in that the door is pivotally supported.