JPS603901Y2 - cabinet locking device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a locking device provided in a filing cabinet.

The door locking device for conventional cabinets is a handle type,
Various types of lever sets and the like are available, but none of them are easy to operate and have a poor appearance, making them unsuitable for indoor use.

Therefore, the purpose of the present invention is to provide a cabinet locking device that makes it possible to easily open the door by simply pressing a small button by utilizing a latch mechanism using an arch-shaped curved leaf spring. .

In order to achieve the above-mentioned object, this invention provides a fireproof cabinet in which a latch part provided on the door part is removably pivoted into a latch part locking groove formed in the cabinet body to lock or unlock the cabinet. The locking device includes a latch locking groove 10 formed as an opening on the side near the door in the cabinet body B, and a partition plate C formed between the door front part A and the door rear part A' of the door part. a fixed plate spring mounting part 4 fixedly provided above; a movable plate spring mounting part 1 slidably provided on the partition plate C apart from the fixed plate spring mounting part 4; and the movable leaf spring. A leaf spring 2 whose both ends are connected to the mounting portion 1 and the fixed leaf spring mounting portion 4 and curvedly protrudes toward the front of the door portion; a connecting member 8 that extends beyond the latch portion locking groove 10 side of the cabinet body B; A latch part 6 is connected to the front end of the latch part 6 and pivots so as to be able to be fitted into and removed from the latch part locking groove 10 by sliding of the connecting member 8, and a latch part 6 is provided on the front A side of the door and the front end side protrudes outward. It also has an operating section 3 that abuts the curved protrusion of the leaf spring 2 on the base end side, and presses the operating section 3 in the front-rear direction to deflect the leaf spring 2 and move the movable leaf spring mounting section 1. This technical means consists of a sliding lock release means.

A preferred embodiment of this invention applied to a fireproof cabinet will be described below with reference to the drawings.

Figure 1 is a diagram of the internal structure of the present invention seen from the side;
The figure shows the operation of the latch mechanism when opening the door, and Figure 3 shows the operation of the latch mechanism when opening the door.
It is a diagram showing the engaged state of the movable leaf spring attachment part, the connecting member, the fixed leaf spring attachment part, and the latch part, and shows the lower part of the partition plate C between the door front part A and the door rear part A' of the door part. A fixed leaf spring mounting part 44 is fixed, and a movable leaf spring mounting part 1 is attached to the partition plate C so as to be vertically slidable via a leaf spring 2 which protrudes forward in a curved manner with a fixed length on the upper part of the fixed leaf spring mounting part 44. ing.

A connecting member 5 made of a rectangular plate-shaped metal fitting is disposed downwardly extending from the lower part of the movable leaf spring mounting portion 1 to enable interlocking.

On the other hand, a bracket-shaped latch part attachment fitting 9 is fixed to the bottom wall surface of the door part, and the latch part 6 is pivotally attached to this latch part attachment fitting 9 so as to be tiltable.

That is, the latch part 6 has a hole 6' in the center thereof, and a latch part mounting pin 7 is inserted through the hole 6' and pivotally mounted to the latch part mounting bracket 9.

Here, the diameter of the hole 6' is approximately the same as the latch mounting pin.
However, it is preferable to set it to a slightly larger diameter.

Since the tip of the connecting member 8 is pivotally attached to the front side of the latch portion 6 formed in this manner via the connecting member locking pin 8, the latch portion 6 is configured to tilt as the connecting member 8 moves up and down. It becomes.

Further, a release button insertion tube 3 extending in the front-rear direction inside the front part A of the door at the same horizontal position as the central part of the leaf spring 2 is provided.
A lock release means is provided in which a release button 3 serving as an operating portion with one end protruding outward is fitted into the release button insertion tube 3' so as to be slidable in the front and rear direction.

Furthermore, a latch part locking groove 10 that opens toward the latch part 6 is provided on the wall surface of the cabinet body B on the side near the latch part 6, so that the tip of the latch part can be engaged and disengaged.

The present invention has the above structure, and the actual operation is as follows.

Figure 1 is a diagram of the internal structure of the present invention viewed from the side, with the door closed.

Now, when the release button 3 is pushed in the direction of the arrow, the tip of the release button presses the curved tip of the leaf spring 2, causing the leaf spring 2 to expand, as shown in FIG.

At this time, since the fixed leaf spring attachment part 4 is fixed to the partition plate 3, only the movable leaf spring attachment part 1, which is slidably attached, is pushed up, and at the same time, the lower part of the movable leaf spring attachment part 1 is pushed up. The fixed connecting member 5 also moves upward, but the latch part 6, which is connected to the lower end of this connecting member via the connecting member locking pin 8, rotates around the latch part attachment pin 7. Therefore, the tip of the latch portion 6 that is locked in the latch portion locking groove 10 of the cabinet B is lifted, and the locked state is released.

Furthermore, the latch part 6 rotates around the latch part attachment pin 7, but the diameter of the hole 6' is slightly larger than the diameter of the latch part attachment pin 7, and the latch part 6 is always pushed forward by the weight of the door. Since the latch part 6 is once released, the tip of the latch part 6 is the release button 3.
Even if the finger pushing is released, the door is not locked in the latch locking groove 10, so the door can be opened easily.

Next, when closing the door, press the front part of the door and the tip side of the latch part 6 will be biased downward into the latch part locking groove 1.
0, and the tip of the latch part 6 is fitted into the latch part locking groove 10.

In this case, as mentioned above, the latch part 6 which has been released from the locked state has moved slightly forward, so it is necessary to move it further back, but once it has been fitted into the latch part locking groove 10. Thereafter, the door moves forward due to its own weight (which acts as a biasing force) and the extra diameter of the latch mounting pin 7, and is held in the same locked posture position as at the beginning.

As described above, the present invention has a simple configuration that allows the latch part to be pulled out of the latch part locking groove and unlocked by simply pushing the release button back and forth. However, it is useful because it can be easily locked or unlocked.

[Brief explanation of drawings]

Figure 1 is a diagram of the internal structure of the present invention seen from the side, Figure 2 is:
FIG. 3, which is a diagram showing the operation of the latch section when the release button is pressed, shows the movable leaf spring attachment section, the leaf spring, the connecting member, the fixed leaf spring attachment section, as seen from the direction A-A' in FIG. It is a figure showing the engaged state of a latch part.

Claims (1)

[Scope of Claim for Utility Model Registration] A cabinet locking device that locks or unlocks a cabinet by pivoting a latch provided on a door so that it can be freely fitted into and removed from a latch locking groove formed on a cabinet body. A latch locking groove 10 is formed in the main body B on the side near the door, and is fixed on a partition plate C formed between the front part A of the door and the rear part A' of the door part. a fixed leaf spring mounting portion 4; a movable leaf spring mounting portion 1 slidably provided on the partition plate C apart from the fixed leaf spring mounting portion 4; and a movable leaf spring mounting portion 1 and the fixed leaf spring mounting portion 1; A leaf spring 2 whose both ends are connected to the leaf spring attachment part 4 and curvedly protrudes toward the front of the door; and a leaf spring 2 which is operatively attached to the movable leaf spring attachment part 1 and extends beyond the door to the cabinet. A connecting member 8 extending toward the latch portion locking groove 10 side of the main body B, and a connecting member 8 that is pivotally attached to the wall surface on the side near the latch portion locking groove 10 at the door portion and connected to the tip of the connecting member 8. The latch part 6 pivots so that it can be fitted into and removed from the latch part locking groove 10 by the sliding of the connecting member 8. The lock release means has an operating section 3 that comes into contact with a curved protrusion of a leaf spring 2, and presses the operating section 3 in the front-rear direction to deflect the leaf spring 2 and slide the movable leaf spring mounting section 1. A cabinet locking device comprising: