JPH0893298A - Latch device for door in furniture or the like - Google Patents

Abstract

PURPOSE: To enhance the durability of a latch lever by providing the rotating shaft of a latch and the supporting shaft of the latch lever separately, and engaging/disengeging both shafts by a protruding piece for a rotating means and a protruding piece for the latch lever so as to prevent the rotation of the latch lever at the time of closing a door. CONSTITUTION: At the pull part of a door or the like, a latch lever 5 with a protruding piece 8 is rotatably fitted to a supporting shaft 9 through a return spring, and a latch 2 with a protruding piece 6 is rotatably fitted to a rectangular shaft 3. In the case of opening the door, the latch lever 5 is pulled and rotated into a dotted line position. The protruding piece 6 is thereby pushed to rotate the latch 2 into the dotted line position, and the latch 2 comes out of the engaging hole of a body so as to be released. When the latch 2 is released, the latch lever 5 is returned into the original position by the action of the spring. In the case of closing the door and rotating the latch 2 so as to be locked into the engaging hole, the engagement with the latch lever 5 is released, and the latch lever 5 is prevented from rotating. The damage or the like of the latch lever 5 is thereby prevented so as to enhance durability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door latching device for furniture and the like, and in particular, by using a latch lever shaft and a latch square shaft, only the latch moves when closed.
The latch lever relates to a latch device for a door of furniture or the like that is immovable.

[0002]

2. Description of the Related Art In a conventional door locking device, an operating rod having a rectangular cross section is held in a square hole of a holding tube, a latch is fixed to an end portion of the operating rod, and the latch is springed by a return spring. And pulling the hook plate of the pull tab cover and pulling the handle portion of the pull tab, the lock plate is pulled through the connecting plate. There is a door locking device (see Japanese Utility Model Publication No. 2-6207) in which the operating rod is rotated against a return spring to unlock the latch.

[0003]

However, in the above-mentioned prior art, by pulling the handle portion (latch lever in the present invention) of the pulling board, the actuating rod is rotated against the return spring via the connecting plate. Since the latch is locked by moving it, the latch is engaged and disengaged by interlocking the handle with the latch via one operating rod. When the door is closed, the latch is pushed against the return spring by the engaging hole and moves to engage the engaging hole, regardless of whether the operator holds the handle or not when closing the door. At the same time, the handle part will open and return to its original position due to the operating rod, which may cause a finger to be caught. There were problems such as occurrence. In view of these circumstances, the present invention provides a latch lever shaft and a latch angular shaft separately and forms two shafts, so that when closed, only the latch moves and locks. It is an object of the present invention to provide a door latching device for furniture or the like that does not move.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a latching device for a door in furniture or the like, which has a latch lever pivotally supported by a pulling part, and this latch. By rotating the lever, the latch provided on the upper and lower ends of the back side of the door is engaged with and disengaged from the engaging hole of the main body of furniture, etc., via the rotating tool that is fixed to the latch square shaft. A structure in which the shaft and the shaft for the latch are separated is adopted.

[0005]

In the present invention, as a result of adopting the above construction, the latch lever is pivotally supported by its own shaft, so the operation of the latch lever moves the latch lever only when it is opened, and follows the movement of this latch lever. Then, the rotating tool is moved, and the latch can be moved to the open position via the latch square shaft fixed to the rotating tool to open the door. After that, when the latch lever is released, the return spring returns to the steady position. Next, when the door is closed, the latch collides with the engagement hole and pivots against the return spring of the latch to match the engagement hole and become engaged and locked. At this time, since the latch lever is provided on its own axis different from the latching angle axis,
It remains stationary without any movement.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. 1 to 3, the door latch device of the present invention will be described in detail.
It is provided on the back side of the door so that you can understand it.

First, the latch device 1 of the present invention will be described. A latching angular shaft 3 having a latch 2 above or below, or above and below, and a rotating tool 4 is provided on the latching angular shaft 3, and the rotating tool 4 is rotated by a latch lever 5. The projecting piece 6 for the rotating tool is provided on the.

A latch lever 5 is provided so as to be engaged with the operating portion of the pull tab cover 7, and the latch lever 5 is provided.
The latch lever projecting piece 8 for rotating the rotating tool projecting piece 6 by the opening operation is formed. The latch lever 5 is fixed to a support shaft 9 pivotally supported by the puller cover 7.

As described above, the latch device 1 can be operated by the latching angular shaft 3 provided with the latch 2 and the rotating tool 4, and the support shaft 9 provided with the latch lever 5. In addition, 10 is a well-known lock.

Next, the operation will be briefly described. As described above, although it was explained a little in the explanation of the configuration, it will be explained in detail with reference to FIG.
For example, each member is located as shown by the solid line. The latch 2 rotates in a direction perpendicular to the door surface and is engaged and locked in a locking hole on the body side of furniture or the like. The latch 2 being in the locked state means that the rotating tool 4 provided on the latch angular shaft 3 fixing the latch 2
The rotating tool protrusion 6 is parallel to the door surface, and the latch lever protrusion 8 of the latch lever 5 is positioned in a state of being overlapped with the rotating tool protrusion 6 in parallel. Is constantly biased by a return spring (not shown).

To open the door from the closed state,
When the latch lever 5 is rotated against the return spring as shown by the chain double-dashed line, the latch lever projection 8 is moved to the rotating tool projection 6
While pressing, the latch lever projection 8 is rotated in the direction opposite to the rotation direction, and the latch 2 is rotated in the direction of the position indicated by the chain double-dashed line through the latching angle shaft to move from the engaging hole. It is possible to evacuate and open the door. After releasing the door, when the hand is released from the latch lever 5, the latch 2 and the latch lever 5 return to the steady position (position indicated by the solid line) by the return spring.

After that, when the door is closed, the circular arc portion of the latch 2 collides with the non-hole portion of the engaging hole formed in the body of furniture or the like, and once the position of the two-dot chain line is resisted against the return spring. Rotate to the side. Further, when the door is pushed, it is returned to the position indicated by the solid line by the return spring in conformity with the engaging hole and locked. At this time, in the conventional one in which the latch and the latch lever are provided on one shaft, the latch lever moves together with the latch, so that a rattling noise occurs each time, and a finger or the like may be caught. . On the other hand, in the case of the present invention, the latch lever does not move even if the latch moves, so that the latch lever does not move, so that no finger is caught and no sound is generated.

[0013]

According to the present invention, the following effects can be obtained based on the above configuration. (1) Compared with the conventional one in which the latch moves on closing the door and the latch lever provided on the same shaft also moves at the same time, the latch lever of the present invention does not move even if the latch moves. It doesn't look cheap. (2) Since the number of times the latch lever moves is halved, there is no damage and the durability is improved. (3) Since the latch lever does not move when it is closed, there is no risk of pinching a finger or the like.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a main part of a latch device of the present invention.

FIG. 2 is a front view showing a pull tab portion of the present invention.

FIG. 3 is a partial vertical cross-sectional view showing a pull tab portion in the embodiment.

[Explanation of symbols]

1 ... Latch device 2 ... Latch 3 ... Latch angular shaft 4 ... Rotating tool 5 ... Latch lever 6 ... Rotating tool projection 7 ... Puller cover 8 ... Latch lever projection 9 ...・ ・ ・ Spindle 10 ‥‥ Lock

Claims (1)

[Claims] 1. A latch lever rotatably supported by a pull tab and provided by a pivot operation of the latch lever.
The latch lever shaft and the latch shaft are engaged and disengaged with the engaging holes of the main body of furniture, etc., via a rotating tool that fixes the latches provided on the upper and lower ends of the back side of the door to the latch square shaft. A door latching device for furniture, etc.