JPH0349021Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] This invention relates to locks.

[Conventional technology]

For locks that retract the lock piece while rotating the rotor along with the square shaft using a lever or gripping ball, when the lever or gripping ball is removed, the spring pushes the rotor back and releases the lock piece. It is designed to stand out.

[Problem to be solved by the invention] If the push-back force by the spring is weak, the lever will not be able to return to the horizontal position, and will be tilted just before the horizontal position.

Furthermore, if the push-back force by the spring is strong, the ball will spin idly if it is not gripped strongly.

For this reason, there was a problem in that a lever lock with a strong push-back force and a grip ball lock with a weak push-back force had to be prepared separately.

[Means for solving problems]

In order to solve the above problems, this idea
A slide plate that slides in the same direction as the lock piece is installed in the lock box, and the end of a rod having a lock piece at the tip is engaged with this slide plate, and a rod is inserted above and below the end edge of the slide plate opposite to the lock piece. An engaging portion is provided, and a projecting piece is provided on the outer periphery of the rotator that engages with the upper and lower engaging portions to pull back the slide plate no matter which direction the rotor is rotated. A seat provided on the tip side of the rotary operating shaft is opposed to a nut plate which is screwed into the threaded portion of the rotating operation shaft and moved forward and backward, and a spring is interposed between the seat and the nut plate.

[Effect]

In this invention, when the rotator is rotated by a lever, the rotation of the operating shaft advances the nut plate in the direction of the catch, compresses the spring, and strengthens the pushing force of the slide plate.

In addition, when rotating the rotator using a grip ball,
Rotation of the operating shaft moves the nut plate backward to weaken the pushing back force of the slide plate.

〔Example〕

In the figure, reference numeral 1 denotes an attached lock box, and a through hole 3 is provided in the front end wall 2 of this lock box 1, and a lock piece 5 provided at the tip of a rod 4 passes through this through hole 3 so as to be freely retractable. .

Reference numeral 6 denotes a slide plate built into the lock box 1 so as to slide in the direction in which the lock piece 5 comes out and comes out, and this slide plate 6 has a protruding piece 7 that protrudes from one side of the slide plate 6.
At the same time, the end of the rod 4 is fitted into the U-shaped notch 8 of the protrusion 7, and the spring spring 10 fitted to the rod 4 connects the collar 9 provided at the end of the rod 4 and the protrusion 7. When the slide plate 6 is moved back, the lock piece 5 is pulled back.

Reference numeral 11 denotes a rotator provided in the lock box 1 with both ends penetrating and supported by both side walls of the lock box 1;
A square shaft 13 inserted into a square hole 12 provided in the shaft center of
A lever or grip ball (not shown) for operation is attached to both ends of the handle.

Further, engaging parts 14, 14' are provided above and below the distal edge of the slide plate 6, and the engaging parts 14, 14' projecting to one side of the sliding plate 6 are provided. Projection piece 15,1 protruding from
5' are in contact with each other.

Furthermore, a catch 16 provided on the front edge of the slide plate 6
and a nut plate 19 that is screwed into the threaded portion 18 of the rotary operating shaft 17 and moves forward and backward as the operating shaft 17 rotates.
A spring 20 is interposed between the seat 16 and the nut plate 19, which face each other.

In the illustrated case, the operating shaft 17 is provided with a recess 21 in the front wall 2 from the front side and a through hole 22 at the center of the bottom surface of the recess 21.
At the same time, the head 23 of the operating shaft 17 is fitted into the recess 21, and the square shaft is fitted into and engaged with the square hole on the surface of the head 23 to rotate the operating shaft 17. A horizontal elongated hole 24 is provided in the wall, and the protrusions 25 on both sides of the nut plate 19 are fitted into the elongated hole 24 to guide the operation shaft 17.
A long spring 20 with a large diameter and a short spring 20 with a small diameter are fitted in the spring 20, and when both springs 20 are compressed, it becomes a lever.

In addition, as shown in the figure, a piece 26 is provided on the outer periphery of the rotor 11.
By providing a protruding pin 27 inside the lock box 1 that can be attached and detached by screwing, the rotation direction of the lever is regulated by bringing the piece 26 into contact with the pin 27.
In the case of a gripping ball, the pin 27 is removed to allow the rotator 11 to rotate freely.

Next, the action will be explained.

In the case of a grip ball, the operating shaft 17 is rotated to move the nut plate 19 backward, and the force of the spring 20 is weakened.

When the rotator 11 is rotated together with the square shaft 13 by gripping the grip ball, the protrusion 15 and the engaging portion 14 or the protrusion 1
The slide plate is pulled back by the contact between the locking portion 5' and the engaging portion 14', and the rod 4 is moved back by the contact between the protruding piece 7 and the collar 9, so that the lock piece 5 is retracted.

When the hand is removed from the grip, the spring 20 pushes back the slide plate 6 and causes the lock piece 5 to protrude.

In the case of a lever, rotation of the operating shaft 17 moves the nut plate 19 forward and increases the force of the spring 20.

When the lever is grasped and the rotator 11 is rotated together with the square shaft 13, the rod 4 is pulled back together with the slide plate 6 due to the contact between the protruding piece 15 and the engaging part 14, and the lock piece 5 is retracted.

When the user removes his/her hand from the lever, the spring 20 pushes back the slide plate 6 and causes the lock piece 5 to protrude.

〔effect〕

As mentioned above, according to the lock related to this invention,
While moving the nut plate forward and backward by rotating the operating shaft,
The spring force between the nut plate and the seat can be made stronger or weaker.

Therefore, the pushing back force of the sliding plate when using the lever and the pushing back force of the sliding plate when using the grip ball can be freely changed and adjusted.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of the lock according to this invention, FIG. 2 is a sectional plan view of the operating shaft portion, FIG. 3 is a sectional bottom view thereof, and FIG. 4 is a longitudinal sectional rear view thereof. 1...Lock box, 2...Front end wall, 3...Through hole, 4...
...Rod, 5...Lock piece, 6...Slide plate, 7...
... Projection piece, 8 ... Notch, 9 ... Flange, 10 ... Spring, 11 ... Rotator, 12 ... Square hole, 13 ... Square shaft, 14, 14' ... Engagement part, 15 , 15'... protrusion, 16... catch, 17... operating shaft, 18... threaded portion, 19... nut plate, 20... spring.

Claims (1)

[Scope of utility model registration request] In a lock in which a lock piece is inserted while rotating a rotator along with a square shaft by a gripping member, a slide plate that slides in the same direction as the lock piece is built into the lock box, and the slide plate has a lock piece at the tip. The ends of the rods are engaged, and engaging parts are provided above and below the opposite end edge of the lock piece of the slide plate, and the rotor can be rotated in any direction on the outer periphery of the rotor. A protruding piece is provided that engages with the upper and lower engaging parts to pull back the slide plate, and a catch provided on the tip side of the slide plate is opposed to a nut plate that is screwed into the threaded part of the rotation operation shaft to move it forward and backward. The lock is further characterized in that a spring is interposed between the catch and the nut plate.