JPH083619Y2 - Anti-vibration lock handle device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock handle device for unlocking a wing body such as a door or a lid with respect to a fixed frame of an equipment storage box or the like by rotating a handle.

[0002]

2. Description of the Related Art In a conventional lock handle device disclosed in Japanese Utility Model Laid-Open No. 1-96970, a lock shaft is rotatably fitted in a fixed outer cylinder fixed to a wing body and is engaged with a receiving member on a fixed frame side. The stopper plate to be removed is connected to the rear end of the lock shaft, and the lock disk is fitted to the front end passive part with a square cross section of the lock shaft where the base end drive part of the insertion / removal handle is attached / detached so that it cannot rotate relative to the lock shaft. The locking projection on the outer peripheral surface of the disk is fitted into the locking receiving groove on the inner surface of the fixed outer cylinder, and the locking disk is slid forward by a compression coil spring.

In this conventional device, when the base end drive portion of the extraction handle is fitted into the front end passive portion of the lock shaft and pushed into the fixed outer cylinder, the lock disc is pushed by the base end drive portion to move in the axial direction. As the locking projection is released from the locking receiving groove by sliding backward, the lock shaft is unlocked from the fixed outer cylinder, and the lock shaft is inserted and removed to the unlocked position where the stopper plate separates from the receiver. It can be rotated by the handle.

However, in the conventional device, the engagement depth of the engagement projection and the engagement receiving groove is relatively shallow, and this engagement state is only held by the sliding bias of the compression coil spring, so that it is fixed. When a considerable amount of vibration is received from a vehicle loaded with a frame or a ship, the engagement between the locking projection and the locking receiving groove is unintentionally released due to the resonance phenomenon of the spring, and the locking is accidentally released. There is.

Further, in order to close and close the wing body tightly to the fixed frame, it is necessary to engage the stopper plate with the receiver while sliding the front portion of the stopper plate against the rear surface of the receiver. The frictional resistance during the locking / unlocking operation due to the forward / reverse rotation becomes relatively large, and there is a drawback that it cannot be performed lightly with a small force.

[0006]

SUMMARY OF THE INVENTION Therefore, the object of the present invention is to prevent the lock from being accidentally released due to vibration while the vehicle is running, and to lock and unlock the lock shaft with forward and reverse rotation with a small force. An object of the present invention is to provide a vibration-proof type lock handle device that can be carried out lightly.

[0007]

The lock handle device according to the present invention has a fixed inner cylinder 1 in which a rotating inner cylinder 2 is fitted and a front end of the fixed outer cylinder 1 is fitted and inserted. At the front end of the rotating inner cylinder 2 protruding from the surface 3, a passive portion 6 to which the proximal end drive unit 5 of the insertion / removal handle 4 is attached / detached is provided, and the lock shaft 7 is fitted and inserted into the rotating inner cylinder 2 to the rear of the fixed outer cylinder 1. A stopper plate 9 that engages with and disengages from the catch 8 is fixed to the rear portion of the protruding lock shaft 7.

A groove portion 10a parallel to the front end face 3 of the fixed outer cylinder 1 and a groove portion 10b inclined rearward are provided on the side wall of the rotating inner cylinder 2.
A guide groove 10 composed of a guide groove 10 and a guide pin 11 projecting from the front peripheral surface of the lock shaft 7 is fitted into the guide groove 10, and a regulating groove parallel to the front end surface 3 is provided at the rear end of the fixed outer cylinder 1. 12 is provided, a recess 12a that is recessed forward is provided at one end of the restriction groove 12, and a stop pin 13 that is provided on the peripheral surface of the intermediate portion of the lock shaft 7 is fitted into the restriction groove 12 to lock the rotary inner cylinder 2 and the lock. The lock shaft 7 is slidably biased rearward by the spring 14 inserted between the shafts 7.

[0009]

In the locked state where the stopper plate 9 is engaged with the receiving plate 8, the lock pin 7 is rotated with respect to the fixed outer cylinder 1 because the stop pin 13 is engaged with the recess 12a of the restriction groove 12. It is locked improperly. The interlocking pin 11 is engaged with the end portion of the groove portion 10a of the guide groove 10, and this engagement state is held by the backward biasing force of the compression coil spring 14. The base end drive part 5 of the insertion / removal handle 4 is separated from the passive part 6 of the lock shaft 7, and the insertion / removal handle 4 is extracted from the lock shaft 7.

Here, the base end drive section 5 of the insertion / removal handle 4
Is engaged with the passive portion 6 of the lock shaft 7 and the rotating inner cylinder 2 is rotated in the unlocking direction, that is, in the clockwise direction in FIG. 6, the apparent interlocking pin 11 is apparently moved from the end of the groove portion 10 a of the guide groove 10 to the groove. Move to part 10b. Groove portion 1 of the guide groove 10
When moving in 1b, the interlocking pin 11 is pushed by the inner wall surface of the groove portion 10b inclined rearward, so that the lock shaft 7 is slid rearward by the cam action.

At the end of rotation of the rotating inner cylinder 2, the interlocking pin 1
When 1 is engaged with the tip of the groove portion 10b, the stop pin 13 is out of the recess 12a of the restriction groove 12, and the lock shaft 7 is rotatable with respect to the fixed outer cylinder 1. When the stop pin 13 separates from the recess 12a, the stopper plate 9 linearly moves rearward and separates from the receiving metal 8, and the stopper plate 9 is received at a rear position separated by a depth corresponding to the recess 12a. Money 8
Face to face. Rotating the inner cylinder 2 with the handle 4
When is further rotated in the unlocking direction, the lock shaft 7 rotates integrally with the rotating inner cylinder 2.

When the lock shaft 7 rotates, the stop pin 13 moves clockwise in the restriction groove 12 in FIG.
When the stop pin 13 reaches the end of the restriction groove 12 on the side opposite to the recess 12a, the stopper plate 9 is rotated to a position where it does not collide with the catch 8 and the lock to the fixed frame 16 is released. The wing body 15 is opened by pulling the extraction handle 4 toward you.

After the wing body 15 has been closed, when the stop pin 13 comes to a position facing the recess 12a of the restriction groove 12 by the reverse rotation of the withdrawal handle 4, the stopper plate 9 has a depth corresponding to the depth of the recess 12a. Faced with Receiving Money 8 only. When the insertion / removal handle 4 is further rotated in the locking direction, the rotating inner cylinder 2 rotates with respect to the lock shaft 7, and the interlocking pin 11 moves from the tip of the groove portion 10b of the guide groove 10 to the groove portion 10a. Groove portion 10 in which interlocking pin 11 is inclined in this process
Since it is pushed by the inner wall surface of b, the lock shaft 7 is slid forward.

Since the stop pin 13 enters the recess 12a of the restriction groove 12 by the forward sliding of the lock shaft 7, the stopper plate 9 linearly moves forward and engages with the catch 8. As a result, the wing body 15 is locked to the fixed frame 16, and the insertion / removal handle 4 is extracted from the lock shaft 7.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated embodiment, a fixed outer cylinder 1 is fitted into a mounting hole 17 of a wing body 15, and a nut 19 screwed into an outer peripheral screw portion 18 is used to attach a washer ring 20 to the wing body 15.
It is fastened and fixed via. A waterproof packing 22 is provided between the front end flange portion 21 of the fixed outer cylinder 1 and the wing body 15.
The waterproof O-ring 24 is inserted between the outer peripheral groove 23 in the front part of the rotating inner cylinder 2 and the inner peripheral surface of the fixed outer cylinder 1. A retaining ring 27 is inserted into the outer peripheral groove 25 at the rear of the fixed inner cylinder 2 and the inner peripheral groove 26 at the rear of the fixed outer cylinder 1, so that the rotating inner cylinder 2 moves in the axial direction of the fixed outer cylinder 1. Have been thwarted.

The stopper plate 9 is fitted in the oval through hole 28 at the base end portion with the screw shaft portion 29 of the same cross section of the lock shaft 7 so as not to be able to rotate relative to each other, and the lock shaft 7 by the nut 31 via the washer plate 30. Is fastened to the outer peripheral step surface 32. The compression coil spring 14 has a front end hollow portion 33 of the rotating inner cylinder 2.
It is housed in. The base end drive part 5 of the insertion / removal handle 4 is formed in a bifurcated shape, and the passive part 6 of the rotary inner cylinder 2 is formed in a rectangular cross section. On the front side of the passive portion 6, a hooking collar portion 34 of the detachable handle 4 is provided so as to project.

The interlocking pin 11 penetrates the lock shaft 7 in the diameter direction, and both ends thereof project to the outer peripheral surface of the lock shaft 7. Corresponding to this, a pair of guide grooves 10 are provided. The stop pin 13 also penetrates the lock shaft 7 in the diametrical direction, and both ends thereof project to the outer peripheral surface of the lock shaft 7. Corresponding to this, a pair of regulating grooves 12 is also provided. The angle formed by each guide groove 10 with respect to the center of the rotating inner cylinder 2, that is, the central angle is 90 degrees, and the center angle of each restriction groove 12 is also 90 degrees.

[0018]

As described above, in the lock handle device of the present invention, the side wall portion of the rotating inner cylinder 2 includes the groove portion 10a parallel to the front end surface 3 of the fixed outer cylinder 1 and the groove portion 10b inclined rearward. The guide groove 10 is provided, the interlocking pin 11 on the front peripheral surface of the lock shaft 7 is fitted into the guide groove 10, and the regulation groove 12 parallel to the front end surface 3 is provided at the rear end of the fixed outer cylinder 1. A recess 12a that is recessed forward is provided at the end of the lock shaft 7
The stop pin 13 on the peripheral surface of the intermediate part of the interlocking pin 11 is inserted into the restriction groove 12, and depending on the vibration of the normal use environment, the interlocking pin 11
Is moved from the groove portion 10a of the guide groove 10 to the tip of the groove portion 10b and the stop pin 13 comes out of the recess 12a of the restriction groove 12, a rotational force sufficient to rotate the rotating inner cylinder 2 is obtained. Since it does not exist, the lock shaft 7 does not spontaneously rotate due to vibration and is not accidentally unlocked.

In the lock handle device of the present invention, when the stop pin 13 reaches the position facing the recess 12a of the regulation groove 12 by rotating the rotating inner cylinder 2 with the pulling handle 4 in the locking operation, the money receiving 8 Plate 9 that came to the rear of
Is separated from the receiving metal 8 by an amount corresponding to the depth of the recess 12a, and the rotating inner cylinder 2 is further rotated in the locking direction so that the interlocking pin 11 is inserted from the groove portion 10b of the guide groove 10 into the groove portion 10a. At this time, the stop pin 13 makes the recess 12a of the restriction groove 12
Since the stopper plate 9 abuts the catch plate 8 at this stage, no sliding friction resistance acts between the catch plate 8 and the catch plate 9, and the locking operation can be performed smoothly with a small force. It can be done lightly.

Further, in the lock handle device of the present invention,
When the interlocking pin 11 reaches the tip of the groove portion 10b of the guide groove 10 by rotating the rotating inner cylinder 2 with the insertion / removal handle 4 in the unlocking operation, the lock shaft 7 slides rearward by the force of the spring 24. Then, the stopper plate 9 moves to the rear of the catch 8 by an amount corresponding to the depth of the recess 12a of the restriction groove 12, so that the lock shaft 7
When is further rotated in the unlocking direction, no sliding friction resistance acts between the catch 8 and the stopper plate 9, and the unlocking operation can be performed smoothly and lightly.

[Brief description of drawings]

FIG. 1 is a front view of a vibration-proof lock handle device according to an embodiment of the present invention in a locked state.

FIG. 2 is a right side view of the lock handle device.

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

FIG. 4 is a cross-sectional view taken along the line AA of FIG. 1, showing a state in which the removal handle is connected to the rotating inner cylinder.

5 is a sectional view taken along line BB of FIG.

6 is a cross-sectional view taken along the line CC of FIG.

[Explanation of symbols]

 1 Fixed Outer Cylinder 2 Rotating Inner Cylinder 3 Front End Surface of Fixed Outer Cylinder 4 Insertion / Extraction Handle 5 Base End Drive Part of Extraction / Injection Handle 6 Rotating Inner Cylinder Connection 7 Lock Shaft 8 Receiving 9 Stopper Plate 10 Induction Groove 10a Induction Groove Groove portion 10b Groove portion of guide groove 11 Interlocking pin 12 Regulating groove 12a Recessed groove 13 Stop pin 14 Energizing spring 15 Wing body 16 Fixed frame

Claims (1)

[Scope of utility model registration request] 1. A passive type in which a rotary inner cylinder (2) is inserted into a fixed outer cylinder (1), and a base end drive section (5) of an insertion / removal handle (4) is attached to and detached from the front end of the rotary inner cylinder (2) protruding from a front end surface (3) of the fixed outer cylinder (1). The lock shaft 7 is fitted into the rotating inner cylinder 2, and the stopper plate 9 that engages with and disengages the receiving metal 8 is fixed to the rear portion of the lock shaft 7 protruding rearward of the fixed outer cylinder 1. The groove portion 10a parallel to the front end surface 3 of the fixed outer cylinder 1 and the groove portion 1 inclined rearward on the side wall portion 2
0b and a guide groove 10 that is formed on the front peripheral surface of the lock shaft 7 is inserted into the guide groove 10, and a regulating groove parallel to the front end surface 3 is provided at the rear end of the fixed outer cylinder 1. Twelve,
A recessed portion 12a that is recessed forward is provided at one end of the regulation groove 12, and a stop pin 13 projecting from the peripheral surface of the intermediate portion of the lock shaft 7 is fitted into the regulation groove 12 and is inserted between the rotating inner cylinder 2 and the lock shaft 7. A vibration-proof type lock handle device in which the lock shaft 7 is slidingly biased rearward by the inserted spring 14.