JPS6028757Y2 - door lock operation handle - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an operating handle for a door lock.

Conventionally, as shown in FIG.
lock case 1 by inserting the
Various types of door locks are used in which a latch actuating cam plate inside the door is rotated, and a moving latch 11 is housed in the latch actuating cam plate from the front surface.

By the way, in this type of door lock, when the door lock is attached to the door 12 in the reverse direction as shown in FIGS.

For this reason, it was necessary to use a separate operating handle in which the operating rod 4 was attached in the opposite direction.

For this reason, the manufacturing process becomes complicated since the operating handle must be manufactured separately for the left and right hands, and the manufacturing cost also increases.

The present invention is intended to solve the problems of conventional door locks of this type and to provide a door lock that can be used both in the left and right directions.

That is, as described below, when the lock case 10 is installed with the single chord shape of the insertion hole 16 of the operating rod 4 facing upward as shown in FIG. When installed with the single chord shape of the insertion hole 16 facing downward as shown in Figure (2), the operating rod 4 is directed downward, so that the direction of the operating rod 4 can be changed freely.

In this way, the operating handle of the present invention can be used for both left and right hands.

Embodiments of the present invention illustrated in the drawings will be described below.

(Description of the Embodiment) In FIG. 2, reference numeral 1 denotes a pedestal attached to a door 12, and the pedestal 1 accommodates a drive plate 2 and a cam 3 integrally fixed to the tip of an operating rod 4.

Reference numeral 14 denotes a rotation shaft for the final tightening operation that passes through the lock case 10 (FIG. 1) and reaches the grip ball 17.

As shown in FIGS. 4 and 5, the drive plate 2 has a lower end 2a, and a cutout hole 6 is bored in the center of the lower end 2a.

The hole 6 consists of a semicircular part 6a, a rectangular part 6b, and a recessed notch part 6c at the top.

The cam 3 has an arc-shaped protrusion 3a as shown in FIGS.
to protrude.

As shown in FIG. 5, the operating rod 4 has an arcuate portion 4a, and the cam 3 is integrally fixed to a right-angled bent portion 4b.

The drive plate 2 is suspended by M2S fixed to the base 1, and is urged downward by springs 7, 7.

(FIG. 3) A thumb piece 8 is fitted into the base 1 so as to be able to swing freely, and a protruding piece 9 is brought into contact with the lower end 2a of the drive plate 2.

18. 18 is a screw for attaching the pedestal 1 to the seat 19 of the grip ball 17
It is attached to the door with a screw that is inserted through the door.

(Effect of the present invention) Next, the operation of the present invention will be explained.

Now assume that the door opens as shown in Figure 1 (■).

When the thumb piece 8 is pushed downward, the projection 9 of the thumb piece 8 pushes the lower end 2a of the drive plate 2 upward in FIG. 2 against the springs 7, 7 (FIG. 3).

When the drive plate 2 moves upward, one step 5a of the hole 6 abuts against the protrusion 3a of the cam 3, as shown in FIG. 4, and the cam 3 is rotated in the direction of arrow I in FIG.

As a result, the operating rod 4 integrated with the cam 3 rotates the cam plate inside the lock case 10, and the latch 11 is retracted from the front surface.

Next, if the door opens as shown in FIG. 1, the direction of the operating rod insertion hole 16 will also be upside down.

At this time, the direction of the insertion hole 16, that is, the insertion hole 1 in FIG.
Rotate the operating rod 4 in the direction of 6 and insert it into the lock case 10.

As a result, the protrusion 3a of the cam 3 moves from the solid line position to the dotted line position in FIG.

When the thumb piece 8 is pushed downward in this state, the drive plate 2 similarly moves upward, and the other step 5b of the hole 6 hits the protrusion 3a located at the dotted line α in FIG. 4, and the cam 3 is moved in the direction of the arrow Rotate it.

As a result, the operating rod 4 integrated with the cam 3 rotates within the insertion hole 16, rotates the cam plate within the lock case 10, and causes the latch 1 to rotate.
1 from the front side.

As described above, the operating bundle of the present invention can be used for both left and right hand door locks, making it possible to attach it to the door 12 and simplify the manufacturing process.

[Brief explanation of the drawing]

Figures 1 and 1 show the arrangement of the lock case 10 in cases where the door can be opened in different ways. Fig. 2: A sectional view of a door lock using the bundle of the present invention, Fig. 3: A drawing of the lid 15 of the drive plate 2 seen from the right in Fig. 2, Fig. 4 ■...Front view of the drive plate 2 when it is not in operation. 4 ■...Front view when in operation, Fig. 5...
・・・・Perspective view of drive plate 2, operating rod 4, and cam 3, Fig. 6■・・・Front view of cam 3, Fig. 6■・・・・・・
Cross-sectional view of the cam 3, Figure 7... Partially cutaway plan view of the door lock, 1... Pedestal, 2... Drive plate, 2a...
...Lower end, 3...Cam, 3a...
Projection 4...Operating rod, 4a...Curved arc-shaped part, 4b...
...Right angle bent part, 5a, 5b...Curved part, 6...
...Notch hole of drive plate 2, 7... Spring, 8.
... Thumb piece, 9 ... Thumb piece 8 protrusion, 10 ... Lock case, 11 ... Latch, 12 ... Door, 13. ·····Guide plate,
14... Rotation axis for final tightening operation, 15...
...Lid, 16...Insertion hole for operating rod 4 (Fig. 1)
, 17... Grip ball 18... Screw for mounting the pedestal 1, 19... Seat of the grip ball 17.

Claims (1)

[Claims for Utility Model Registration] A cam 3 is integrated into a right-angled bent portion 4b at the tip of an operating rod 4 having an arcuate cross section, which is provided to rotate a latch actuating cam 3 for housing a latch bolt in a lock case. an arc-shaped protrusion 3a protrudes from one side of the cam 3, a drive plate 2 with a cutout hole 6 formed in the pedestal 1 of the operating handle and the cam 3 are accommodated therein, and the lower end of the drive plate 2 2a is always the protrusion 9 of the thumb piece 8
The cam 3 is brought into contact with the cam 3 at one end in the notch hole 6.
The arc-shaped protrusion 3a of the notch hole 6 is inserted through the opposing step part 5at5b, and the bent drive plate 2 is inserted into the protrusion 9 of the thumb piece 8.
When the arcuate portion 3a is moved upward by the pushing motion, one of the opposing step portions 5av5b of the notch 6 of the drive plate 2 presses the lower end of the arcuate portion 3a, causing the cam 3 to also rotate. 2 is in a normal state, the cam 3 is rotatable within the cutout hole 6 of the drive plate 2, and the cam 3 is rotated by the operating rod 4 integrated therewith.
An operating handle for a door lock, characterized in that the direction of the arc-shaped portion 4a can be freely changed.