JPS5850031Y2 - Inside handle of door lock - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of the inner grip of a door lock used in a bathroom or toilet, etc., and the actuation piece that operates the latch of the lock connected to the inner grip is securely attached to the cylinder of the grip. , and the purpose is to connect them so as not to damage them.

Conventionally, the inner grip ball of this type of lock has a locking push button inside, and by pushing this push button, the rotation of the outer grip ball is prevented and the door cannot be opened. In this case, the lock latch can be unlocked by rotating the inner grip ball to either the left or right, or if an emergency situation occurs inside the room, the outer grip can be used to unlock the lock. The lock is unlocked by rotating a rotating body attached to the ball with a 10 yen coin or a screwdriver, but the operating rod connected to the cylindrical body of the grip ball engages with the protrusion on the tip side of the cylindrical body. The operating rod body is fixed to the locking plate by spot welding, but if the welding is incomplete, i.e. the spot weld area is small or the material surface is not clean, rotate the grip ball to remove the lock. Since the force exerted on the actuating rod when the latch is rotated is large, it is difficult to withstand long-term use, and the actuating rod body rarely comes off from the locking plate at the spot welding location.

In such a case, the lock is attached, that is, the grip ball's attachment screw is located on the indoor side, so the lock cannot be disassembled, and the door cannot be opened unless the door is broken.

In view of the cutting point, the present invention prevents the above-mentioned situation from occurring by connecting the locking plate and the operating rod body by tightening the connection instead of using spot connection.

The embodiments of the present invention shown in the drawings will be explained below.1
is an inner grip ball, and the cylinder body 2 is fixedly fixed therethrough, and is integrally formed therein.

A push button 4 having a push rod 3 is housed inside the cylindrical body 2.

An inner seat plate 5 for attaching to the door is rotatably fitted to the inner end of the cylinder 2, and a protruding edge 6 on the tip side from the seat plate 5 is rotatably fitted.
The operating rod 8 is connected to the a and 6 b portions through the wear-resistant ring 7.
The through holes 10a, 10b of the locking plate 9 are fitted, and the C-shaped locking plate 11 is fitted with the protrusions 12a, 1 at the open end of the C-shaped locking plate 11.
2b is formed in the same projecting edges 6a, 6b through hole 13a,
13b to connect the operating rod 8 to the cylinder body 2.

As shown in FIGS. 3 to 5, the operating rod 8 is separated from a U-shaped operating rod body 14 and a locking plate 9, and the locking plate 9 has a central through hole 15 through which the press rod 3 passes. Through hole 1 formed concentrically with
The shape of the holes 0 a and 10 b is made larger inward, that is, the width is approximately twice the thickness of the projecting edges 6 a and 6 b of the cylinder body 2, while the leg piece 1 at the bent part 16 of the operating rod body 14
Between 7 a and 17 b, there is a lug 1 as shown in Figure 6.
8 a and 18 b, and the ear piece 18 a.

18b respectively bent downward and inserted into the through holes 10a and 10b of the locking plate 9, bending their protruding ends inward and then applying a pressing force to tighten and connect them. The connection to the cylindrical body 2 is performed in the same way as the connection of a conventional operating rod.

As described above, the actuating rod of the present invention has a lug formed on the bent part of the actuating rod main body, which is bent and inserted into the common through hole that fits into the protrusion of the grip ball cylinder of the locking plate, and then It is extremely strong because it is bent inward, pressure-welded, and tightened to connect the two, and the welded part will peel off due to impact and the main body of the operating rod will separate from the locking plate, just like the operating rod in conventional spot welding. There is no separation, and there is no fear that the inner grip ball of the bathroom, toilet, etc. will not work and the door will not open, and it has the effect that it can be used with peace of mind.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view showing an embodiment of the present invention, Fig. 2 is a right side view of Fig. 1, Fig. 3 is a front view of the operating rod, Fig. 4 is a plan view thereof, and Fig. 5 is a rear view. FIG. 6 is a perspective view showing the operating rod body before it is attached to the locking plate. 1...Inner grip ball, 2...Cylinder body, 3.
...Push rod, 4...Push button, 5...
Inner seat plate, 6a, 6b...Protrusion, 7...
・Abrasion resistant ring, 8... Operating rod, 9...
- Locking plate, 10a, 10b...Through hole, 11
...C-shaped stop plate, 12 a, 12 b...
...Protrusion, 13 a, 13 b...Through hole, 1
4... Operating rod body, 15... Through hole, 1
6...Bending portion, 17a, 17b...
...Leg piece, 18a, 18b...Ear piece.

Claims (1)

[Scope of utility model registration request] An inner grip ball has a push button with a push rod inside the cylinder, and an operating rod for operating a lock latch is connected to a ridge formed at the inner end of the cylinder. Lug pieces 18 a and 18 b are formed at the bent portions, and the lug pieces are bent downward and inserted into a common through hole into which the protruding edge of the cylinder formed as the locking plate is inserted, and the protruding ends thereof are inserted. The inner handle of a door lock is characterized in that the operating rod is bent inward and pressed together, and is tightened and connected to the locking plate.