JPH0243978Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a latch device in a fireproof library, and aims to simplify the latch device and improve its fireproof function by embedding the latch device in the drawer door from the front side of the drawer door of the fireproof library. The purpose is to

Conventionally, as described in Japanese Utility Model Publication No. 57-55485, this type of latch device has been developed by providing a passage penetrating to the back side of the front plate of a drawer provided in the cabinet main body so that the drawer can be freely inserted and removed. The middle part of the operating lever inserted into the passage is pivoted so that the lever can move up and down, and the claw provided on the back side of the drawer front plate is linked to the up and down movement of the front end of the operating lever to move the lever to the cabinet main body side. On the other hand, a pull portion is provided on the front surface side of the drawer front plate so as to cover the through passage and the front end of the operation lever from above, and a pull portion is provided on the front surface side of the drawer front plate, and has proposed a latch device for a pull-out fireproof cabinet that is fitted with a flame blocking plate that closes the through passage.

However, in this conventional latch device, a separate flame blocking plate is provided on the operating lever to prevent flame from entering the cabinet through a passage that penetrates from the front panel of the drawer provided in the cabinet main body to the back side. However, there was a drawback that the structure was complicated.

The present invention has been made with the object of improving the above-mentioned drawbacks in the latch device provided on the drawer door of a fireproof library.

That is, the present invention has a recess 2 on the outside of the refrigerator inside the drawer door 1.
A through hole 19 is formed from the recess 2 to the inside back plate 23, and side plates 5,
6 is embedded, and a handle 3 having a substantially double-shaped cross section covering the recess 2 is rotatably hung horizontally between the side plates 5 and 6.
To provide a latch device for a fireproof bookshelf, characterized in that a lever 4 passing through the through hole 19 toward the inside of the storage is fixed to the handle 3, and a latch bar 8 is engaged with an end of the lever 4 on the inside of the storage. It is something to do.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The latch device according to the present invention will be described in detail below with reference to illustrated embodiments.

A rectangular recess 2 is formed inward from approximately the center of the outside front plate 24 of the drawer door 1 forming the fireproof library 13, and a through hole 19 is bored from the recess 2 to the inside back plate 23. L-shaped side plates 5 and 6 are embedded in the left and right sides of the recess 2, and the side plates 5 and 6 are fixed with screws 9 and 10. Holes 11 and 12 are provided in the side plates 5 and 6.

The handle 3 is formed by bending the lower end toward the inner side of the refrigerator around the shaft 7 provided across the left and right sides of the recess 2, and the upper end is formed to form an approximately double-shaped handle within the recess 2. A lever 4 fixed to the lower end of the container is provided to protrude toward the inside of the refrigerator. The handle 3 is embedded in the recess 2 so that the lever 4 is inserted into the through hole 19, and the left and right ends of the shaft 7 are rotatably suspended horizontally in the holes 11 and 12 of the side plates 5 and 6.

A latch bar guide groove 20 is formed from the lower end of the inside back plate 23 of the drawer door 1 toward the center, and a compression spring body 21 is inserted into the upper part of the latch bar guide groove 20. Length locking groove 2 at the lower end of
A latch bolt 8 having a notch 2 carved therein and whose lower end is inclined toward the interior of the refrigerator is inserted into the latch guide groove 20, and the latch locking groove 22 is engaged with the latch 4.

Since the present invention is configured as described above, when opening the drawer door 1 of the fireproof bookshelf 13, put your hand on the handle 3 and pull it toward you.The handle 3 moves counterclockwise around the shaft 7. The lever 4, which is rotated and fixed to the handle 3, is also rotated counterclockwise. At this time, the latch bar 8 engaged with the lever 4 is slid upward, and the lower end of the latch bar 8 is exposed to the inclined surface 8'.
The engagement portion 13' provided on the fireproof library 13 is disengaged, and the drawer can be pulled out.

When closing the door, push the drawer into the fireproof library 13 to lock the lower end inclined surface 8' of the latch bar 8.
is brought into contact with the engaging portion 13' of the fireproof library 13, the latch bolt 8 is slid upward against the compression spring body 21, and in the completely closed state, the compression spring body 21
The drawer is pushed downward by the urging force of the drawer and the fireproof library 13 is kept in the engaged state.

As described above, according to the present invention, the number of parts is extremely small, and since there is no mechanical part that protrudes to the inside and outside of the drawer door due to its structure, costs can be reduced and safety is excellent. In addition, the interior and exterior of the refrigerator can be almost completely isolated, improving fire resistance, and the handle and latch device can be incorporated into the drawer door from the front of the door, fully achieving the intended purpose. be.

Furthermore, according to the latch device of the present invention, side plates are buried on the left and right sides of a recess formed on the outside of the drawer door, and a handle having a substantially double-shaped cross section that covers the recess is rotatably mounted between the side plates. Therefore, it is not necessary to provide a concealing member on the front handle of the drawer door 1, and the handle formed in an approximately two-letter shape also serves as a cover, reducing the number of parts and reducing costs. It also has the effect of improving the appearance of the finished product.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view showing the main parts of the present invention, Fig. 2 is a longitudinal cross-sectional view showing the latch disengaged just before the door is opened, and Fig. 3 is a longitudinal cross-sectional view showing the door in the open state. FIG. 4 is a partially cutaway cross-sectional view showing the main parts, and FIG. 5 is a front view of the drawer door. 1...Drawer door, 2...Recess, 3...Handle, 4...
...Role, 5...Side plate, 6...Side plate, 7...Shaft, 8
...Latch bolt, 13...Fireproof archive, 19...Through hole, 23...Back plate.

Claims (1)

[Scope of utility model registration request] A recess 2 is formed on the outside of the refrigerator inside the drawer door 1, a through hole 19 is bored from the recess 2 to the inner back plate 23, side plates 5 and 6 are buried on the left and right sides of the recess 2, and the side plates 5, A cross section approximately 2 covering the recess 2 between 6 and 6
A letter-shaped handle 3 is hung horizontally so as to be rotatable, and a lever 4 that passes through the through hole 19 toward the inside of the refrigerator is fixed to the handle 3, and a latch bolt 8 is engaged with the end of the lever 4 on the inside of the refrigerator. A latch device for a fireproof bookshelf, which is characterized by: