JPH09209620A - Lock handle device for door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to lock reliably with an extremely small amount of projection from the front surface of a door. SOLUTION: A case 1 having a pail-shaped recessed portion 3 projected out to the rear face side of a door 1, an actuation shaft 5 attached to the case 2 in a non-slidable manner in shaft direction and in a rotatable manner, and a handle stored in the pail-shaped recessed portion 3 during locking are provided. Next, a pinion 6 fixed to the tip portion of the actuation shaft 5 and a gear portion 8 linking with the pinion 6 are provided; and also a pair of racks 7 guided in a slidable manner only in up-down direction by a cover 17 fixed to the case 2, and a rod 9 fixed to the tip portion of the rack 7 with the tip portion engaged or disengaged with a brace at a fixed frame side, and a click ball pushed out to a spring 11 and urged at the tip portion of the handle and engaged and disengaged with a recess 12 at the side of actuation shaft 5 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for locking a door of a switchboard storage box or the like. The present invention relates to a door lock handle device to be used.

[0002]

2. Description of the Related Art Various types of lock handle devices for switchboard storage box doors have already been proposed. However, those that lock securely have a large amount of protrusion from the door surface, while those that have a small amount of protrusion have incomplete locking, and those that satisfy both have not yet been developed.

[0003]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a door lock handle device which has a very small amount of protrusion from the door surface and can be locked securely.

[0004]

The lock handle device for a door according to the present invention will be described below with reference to the accompanying drawings. In the lock handle device for a door, the tank-shaped recess 3 fixed to the door 1 and protruding to the rear side of the door 1 will be described. An operating shaft 5 rotatably mounted on the case 2 so as to be non-slidable in the axial direction; and a pivotally rotatably mounted on the base end of the operating shaft 5, and into the tank-shaped recess 3 when locked. A handle 4 to be housed; a pinion 6 fixed to the distal end of the operation shaft 5; and a gear portion 8 that engages with the pinion 6 and can be slid only in the vertical direction by a cover 17 fixed to the case 2. A pair of guided racks 7;
Has a rod 9 which is fixedly attached to the tip of the fixed frame body and which is engaged with and disengaged from the metal receiver on the fixed frame body side. Spring 1 at the tip of handle 4
The click ball 10 protruded and urged at 1 is housed, and the click ball 10 engages with the depression 12 of the operation shaft 5 when the handle 4 is pulled out.

When unlocking, a finger is inserted into the gap between the lower end of the handle 4 and the tank-shaped recess 3 and the handle 4 is pulled out.
When the handle 4 is rotated in a predetermined direction about the operation shaft 5, a pinion 6 fixed to the operation shaft 5 rotates, and a pair of racks 7 provided with a gear portion 8 that engages with the pinion 6 move vertically. Slide. The tip portion of the rod 9 fixed to the tip portion of the rack 7 is released from the receiving member on the fixed frame body side and unlocked.

[0006]

In the embodiment shown, the distal end of the handle 4 is pivotally connected to the proximal end of the operating shaft 5 by means of a transverse pin 18 and furthermore, the distal end of the handle 4 has a radial blindness. In the hole 20, the urging spring 11 and the click ball 1 are provided.
0 is built in. When the handle 4 is pulled out of the tank-shaped recess 3, the click ball 10 has a depression 1 of the operation shaft 5.
2 is engaged. A lock lever 13 provided with a hook portion 14 that engages and disengages with a receiving portion 16 in the tank-shaped recess 3 is slidably guided by a transverse pin 21 and attached to the middle portion of the handle 4 by a spring 15. The lever 13 is biased in the engagement direction.

The operating shaft 5 is divided into a front half portion 5a to which the handle 4 is connected and a rear half portion 5b composed of a pinion 6, and the front half portion 5a and the rear half portion 5b are fitted and joined so as to rotate integrally. It is tightened and connected by a screw 19.

[0008]

As described above, in the door lock handle device according to the present invention, the case 2 is provided with the tank-shaped recess 3 protruding from the rear side of the door 1, and the handle 4 is stored in the tank-shaped recess 3 during locking. Thus, the amount of protrusion from the door surface is extremely small. By incorporating a spring 11 and a click ball 10 at the tip of the handle 4, the click ball 1
When the handle 4 is pulled out of the tank-shaped recess 3, the handle 0 engages with the depression 12 of the operation shaft 5 and reliably supports the handle 4 by the bias of the spring 11. A lock lever 13 provided with a hook portion 14 which is engaged with and disengaged from a receiving portion 16 in the tank-shaped concave portion 3 is slidably mounted at an intermediate portion of the handle 4, and the lock lever 13 is attached by a spring 15 in the engaging direction. By urging, the handle 4 can be securely stored in the tank-shaped recess 3 at the time of locking, so that the handle 4 is inadvertently protruded, and there is no risk of obstacles such as traffic.

[Brief description of drawings]

FIG. 1 is a right side view of a door lock handle device according to an embodiment of the present invention.

FIG. 2 is a front view of the lock handle device.

FIG. 3 is a rear view of the lock handle device.

FIG. 4 is a sectional view taken along line AA of FIG. 2;

[Explanation of symbols]

 1 Door 2 Case 3 Tank-shaped Recess 4 Handle 5 Operation Axis 6 Pinion 7 Rack 8 Gear 9 Rod 10 Click Ball 11 Spring 12 Recess 13 Lock Lever 14 Hook 15 Spring 16 Receiving 17 Cover

Claims (1)

[Claims] 1. A case 2 fixed to a door 1 and having a tank-shaped recess 3 protruding on the back side of the door 1; an operation shaft 5 rotatably mounted on the case 2 so as not to slide in the axial direction. A handle 4 pivotally attached to the base end of the operating shaft 5 and housed in the tank-shaped recess 3 when locked; and a pinion 6 fixed to the distal end of the operating shaft 5; A pair of racks 7 which are provided with a gear portion 8 and are slidably guided only in the vertical direction by a cover 17 which is fixed to the case 2; And a rod 9 which is engaged and disengaged. The handle 4 accommodates a click ball 10 urged by a spring 11 at a distal end thereof.
A lock handle device for a door in which the click ball 10 engages with the depression 12 of the operation shaft 5 when the handle 4 is pulled out.