JPS5968480A - Lever handle apparatus of door lock - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lever handle device for a door lock, which is operated to unlock a door lock case provided on a door.

Conventionally, the locking device in this type of lever handle device is
An opening is provided in the f part of the lock case, and one end of the retractor for retracting the Tivolt in the unlocking direction is exposed to this opening.The operating rod of the horizontal handle is brought into contact with this one end, and the horizontal handle is By pushing or pulling the tractor, the tractor is operated in the upward direction.
It required unnecessary force in the operating direction, and the lock could not be unlocked unless the rotation range of the handle was widened.

The present invention was developed by focusing on these drawbacks, and its purpose is to smooth the rotation direction of the handle and the rotation direction of the actuating lever that raises the retractor, and to make the rotation direction of the handle smooth. To solve the above-mentioned drawbacks by reducing the rotation range of the operating lever and increasing the rotation range of the operating lever.

An embodiment of the present invention will be described below with reference to the drawings.

The figure shows an example in which the operating lever rotates when the handle is pulled.To make the operating lever rotate when the small handle is pushed in, all that is required is to rearrange the handle and arm boulder. Therefore, the illustration and explanation thereof will be omitted.

A cylinder lock 4 is fitted onto the upper part of the cover 3 provided on the outdoor side, and an operating rod 5 is provided for moving a bolt (not shown) forward and backward in the locking or unlocking direction from the rear end of the cylinder lock 4. This operating rod 5 is inserted into the locking device A. A cover 3 protruding toward the F side of this cylinder lock 4 and forming an opening 3'.
Inside the hollow chamber, one end is screwed into a handle 6 that can be rotated by hand.

7', an arm bolt 8 screwed to the arm pin 157, which rotatably supports the arm holder 8 on the cover 3;
An arm plate 1o has one end connected to the other end of the arm boulder 8, and a recess 10' formed at the other end of the arm plate 10 has a circular protrusion 11 formed at one end. an actuating lever 12 into which a child 11 is fitted;
The back cover 14 has a cut portion 16 into which the actuation lever 12 fits, a bent piece 14' is formed above and below, and a position that fits into the bent piece 14' of the back cover 14 and is perpendicular to the actuating lever 12. The lever pin 13 is inserted into the lever pin 13 , and the spring 17 is fitted into the arm holder 8 and has both ends in contact with the inner wall surface of the cover 3 .
to accommodate.

Next, the action will be explained with reference to Figures 1 and 2.
At the same time as the handle 6 is rotated by hand while being pulled in the direction of the imaginary line position, the arm holder 8 is rotated counterclockwise about the arm pinot 9 as a support shaft.

Along with this rotation of the arm holder 8, the arm plate 10
The arm plate 10 is rotated clockwise since the arm plate 10 is fully connected at the arm pin 15.

As the arm plate 10 rotates, the operating lever 12 rotates in the direction of the arrow about the lever pin 13 as shown in FIG. 1, thereby raising a retractor (not shown) provided in the locking device A.

In the present invention, as described above, the link mechanism is connected to the handle, and the actuating lever, which is roughly connected to the arm plate, is pivotally supported by the lever pin. becomes larger, which has the effect of making it possible to smoothly operate the knob when unlocking the lock.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a cutaway side view of a main part, and FIG. 2 is a cross-sectional view taken along the line 1--2 in FIG. A...Lock device, 4...Cylinder lock, 5...Operating lever, 6...Handle, B...Arm holder, 10...
Arm plate, 12... actuation lever. Patent applicant: Kokusan Metal Industry Co., Ltd. Figure 1

Claims (1)

[Claims] A hollow chamber and an opening (a cover forming a square part, a handle that can be rotated by hand, and this), an arm holder connected to the handle with an arm pin and biased by a spring, and an arm holder connected to this arm holder with an arm pin. An arm grate, an actuation lever in which a protrusion formed at one end is fitted into a recess formed in the arm plate, and an arm that rotatably supports the actuation lever and is inserted from a position orthogonal to the actuation lever. A pin and a back cover in which both ends of the arm pin are fitted into bent pieces and a notch into which the operating lever is fitted are accommodated in the hollow chamber of the cover, and when the handle rotates about the arm pin, the handle and A door lock lever handle device characterized in that an operating lever rotates in orthogonal directions.