JPS63312477A - Push turning type lock device - 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] (Field of Application of Industry) The present invention is applicable to locking movable objects such as building doors and equipment storage box lids to fixed frames such as building side pillars and box bodies. The present invention relates to a lock device used in a rotor, in which a key inserted into a rotor is pushed in the axial direction of the main body and then rotated.

(Prior art) In conventional general locking devices that lock the rotor to the main body cylinder using a pin tumbler locking mechanism, a disc tumbler locking mechanism, etc., the door is locked to the fixed frame. 1
The stopper metal is integrally formed with the rotor and fixed to the shaft.

(Problem to be Solved by the Invention) However, in such a structure, when the tumbler lock mechanism is operated with a picking tool or the like to release the lock 11- of the rotor to the main body cylinder, the shaft can be rotated immediately. . Therefore, in the current situation where various types of picking tools exist and methods of unlocking using these tools are known, locking devices incorporating only a conventional tumbler locking mechanism are vulnerable to unauthorized unlocking by malicious users.

Therefore, an object of the present invention is to prevent unauthorized unlocking, since the rotational force cannot be transmitted from the rotor to the shaft simply by unlocking the tumbler lock mechanism incorporated in the front half of the main body with a picking tool or the like. An object of the present invention is to provide a locking device with extremely high safety.

(Means for Solving the Problems) As explained below using reference numerals in the attached drawings, the push-and-turn type lock device of the present invention has two front and rear spherical receivers 2 and 3 on the inner peripheral surface of the rear end. A main body 1 is provided with: a radial receiving hole 6 which is rotatably but immovably fitted in the main body 1 and opens into the shaft hole 5 facing the spherical receiving part 2 on the front side; A cylinder 4 with a connecting portion 7 provided in the axial direction on the end face: the shaft hole 5
The rear end flange portion 1
0 is provided with a connecting part 11 that can be engaged and detached from the connecting part 7,
A rotor 8 in which a recess 12 is provided on the outer peripheral surface of the rear end flange 10, and a drive section 13 is provided in the axial direction on the rear surface of the rear end flange 10:
A radial through hole 16 is provided in the outer peripheral surface of the front end flange 15, which is rotatably but immovably fitted in the rear end of the main body 1 and faces the spherical receiving part 3 on the rear side of the main body 1, The front end flange 1
A shaft 14 is provided with a passive part 17 on the front surface of the rotor 8 that can be engaged with and detached from the driving part 13 of the rotor 8; a lock pin 19 which is inserted into the receiving hole 6 and whose inner end is removably engaged with a recess 20 on the outer peripheral surface of the rotor 8;
a spring 21 accommodated in the receiving hole 6 and urging the lock pin 19 to slide and push the front sphere 18 outward; the sphere receiving part 3 on the rear side of the main body 1 and the through hole 13 of the shaft 14; a rear sphere 22 that is fitted into the recess 12 of the rotor 8 and is removable from the recess 12 of the rotor 8;
is inserted into the keyhole 24 of the rotor 8 in order to release the lock of the rotor 8 from the cylinder 4 by the tumbler locking mechanism 9; By pushing the rotor 8 in the axial direction after releasing the shaft 21, the receiving hole 6 of the cylinder 4 and the recess 20 of the rotor 8 are placed in a non-facing position, while the through hole 13 of the shaft 14 and the recess 12 of the rotor 8 are placed in a non-facing position. Place it in a facing position <wI23
It consists of.

(Embodiment) In the illustrated embodiment, a guard ring 30 that can be freely rotated with respect to the main body l is fitted to the front end of the cylindrical main body l, and the main body l has a mounting nut screwed into the outer circumference threaded portion of the guard ring 30. 33 to the door 34. A hardened steel guard plate 31 is inserted between the front wall 1a of the main body 1 and the front end surface of the cylindrical cylinder 4 to prevent the drill from breaking.

There are two annular grooves 26.2 in the front and rear on the inner peripheral surface of the rear end of the main body 1.
7 is formed, and the cylinder 4 is prevented from moving backward in the axial direction by a C-ring 28 fitted in the annular groove 26 on the front side. The C-ring 29 fitted in the annular groove 27 on the rear side and the C-ring 28 abut against the front and rear surfaces of the large-diameter short cylindrical front end flange 15 of the shaft 14, and rotate the shaft 14 in the axial direction. Preventing movement.

The front spherical receiving part 2 and the rear spherical receiving part 3 are constituted by a single axial groove with a trapezoidal cross section provided on the inner peripheral surface of the main body l, and are separated by a C-ring 28 on the front side. ing. The anterior sphere 18 and the posterior sphere 22 are made of steel. A coil spring type spring 21 is fitted into the small diameter shaft portion of the lock pin 19. The tip of the small diameter shaft of the lock pin 19 projects from the receiving hole 6 of the cylinder 4 toward the solid shaft hole 5 side.

The connecting part 7 on the cylinder 4 side is composed of two protrusions provided on the diameter across the solid shaft hole 5, and the rear end flange 1 has a large diameter disk shape.
The connecting portion 11 on the rotor 8 side provided at the rotor 8 is constituted by a pair of recesses or notches having a shape that corresponds to the projection.

A known pin tumbler locking mechanism is used as the tumbler locking mechanism 9, and the pin receiving hole 9d in the radial direction of the cylinder 4 is used as the tumbler locking mechanism 9.
The drive pin 9a housed in is slidably biased by a spring 9C,
The driven pin 9b inserted into the pin hole 9e on the rotor 8 side is pushed. When the key 23 is removed, the tip of the driven pin 9b comes into contact with the stepped surface 24a of the inner wall surface of the furnace hole 24.

The driving part 13 on the rotor 8 side is composed of a pair of round bar-shaped protrusions protruding from both sides of the furnace hole 24, and the driven part 13 on the shaft 14 side
7 is constituted by a pair of circular through-holes having a shape corresponding to this. The threaded portion of the shaft 14 is provided with a rotation angle regulating disc 35 that engages with and disengages from a stop protrusion 36 at the rear end of the main body
A cap 25 is fitted in a non-rotatable manner and fixed with a mounting nut 32.

Note that, unlike the above embodiment, the anterior sphere 18 and the posterior sphere 2
In that case, the locking force of the cylinder 4 to the main body 1 and the locking force of the cylinder 4 to the main body 1 and the jaw 7) 14
The locking power is further strengthened. Furthermore, any tumbler lock mechanism can be selected and used.

(Function) As shown in FIG.
3, the rotor 8 is unlocked from the cylinder 4 by the pin tumbler locking mechanism 9. Push @23 deeply enough to remove the rear end flange 10 of the rotor 8 from the shaft 14.
When the rotor 8 is pushed in until it contacts the front end flange 15 of the rotor 8, the coupling part 11 on the rotor 8 side separates from the coupling part 7 on the cylinder 4 side, as shown in FIG. 2, and the cylinder 4 and the rotor 8 are connected. is released, the driving part 13 on the rotor 8 side engages with the passive part 17 on the shaft 14 side, and the rotor 8 and the shaft 1
4 are connected.

At this time, the recess 20 of the rotor 8 comes to a position where it does not face the receiving hole 6 on the cylinder 4 side, and the opening of the receiving hole 6 is open to the rotor 8.
The rear end flange 1 of the rotor 8 is closed by the outer peripheral surface of the rotor 8.
The recess 12 of 0 corresponds to the through hole 16 of the front end flange 15 of the shaft 14.
You have reached a position where you are facing the

Therefore, when a rotational force is applied to the key 23 in the pushed state, the rear sphere 22 is pushed against the inner surface of the sphere receiver 3 and
As a result of escaping from the shaft 14 and moving to the through hole 16 on the shaft 14 side, the shaft 14 is unlocked from the main body l. On the other hand, since the inner end of the lock pin 19 contacts the outer peripheral surface of the rotor 8, the front sphere 18 is prevented from escaping from the front sphere receiving part 2 and moving into the receiving hole 6 on the cylinder 4 side. The cylinder 4 is then locked to the main body 1. Further, since the rear sphere 22 engages with both the through hole 16 on the shaft 14 side and the recess 12 on the rotor 8 side, the rotor 8 and the shaft 14
are kept connected.

Thus, Sl! When turning 23, rotor 8 and shaft 14
rotates integrally with the main body l and cylinder 4, and the stopper 2
5 detaches from a receiving portion (not shown) on the fixed frame side to unlock the door 34 1F.

When closing J7?34 and locking it again, after turning the key 23 held in the pushed state in the opposite direction, the key 2 locked to the rotor 8 via the tumbler locking mechanism 9 is turned.
3, the rotor 8 may be pulled out and slid forward.

During this pull-out operation, the rear sphere 22 is pushed by the inner surface of the receiving part 12 on the rotor 8 side, so the rear sphere 22 engages with both the sphere receiving part 3 and the through hole 16 on the rear side of the main body l. The shaft 14 is locked so that it cannot rotate. Since the outer peripheral surface of the rear end flange 10 of the rotor 8 or the outer surface of the drive section 13 comes into contact with the rear sphere 22, the rear sphere 22 is held at the shaft lock 1F position. Connecting part 1 on the rotor 8 side at the end of the drawer operation
1 and the connecting portion 7 on the cylinder 4 side engage again, so the rotor 8 is connected to the cylinder 4.

(Effects of the Invention) In the push-and-turn type lock device of the present invention, when the rotor 8 is rotated by some means in a state where the rotor 8 is locked with respect to the cylinder 4 by the tumbler lock mechanism 9, the As shown in FIGS. 6 and 7, the front sphere 18 is pushed by the inner surface of the sphere receiving portion 2 of the main body 1 and is inserted into the receiving hole 6 on the cylinder 4 side.
As a result, the inner end of the rotor 19 enters the recess 20 of the rotor 8, so that the rotor 8 is connected to the cylinder 4 by the lock pin 19.

Since this cylinder 4 cannot be moved in the axial direction of the main body 1, no matter how the rotor 8 is operated, the recess 1 of the rotor 8
2 moves to face the through hole 16 of the shaft 14, and the drive part 13 on the rotor 8 side engages with the passive part 17 of the shaft 14.The rotor 8 and cylinder 4 simply idle as one. It is.

Furthermore, even if the locking of the rotor 8 to the cylinder 4 by the tumbler locking mechanism 9 can be released by operating the tumbler locking mechanism 9 with a picking Jt- or the like, the connecting portion of the rear end flange 10 of the rotor 8 Since the connecting portion 7 on the rear surface of the cylinder 4 is engaged with the connecting portion 7 on the rear surface of the cylinder 4, when a rotational force is applied to the rotor 4, the rotor 8 and the cylinder 4 rotate together, and are pushed inward as described above. The inner end of the locking pin 19 is pushed into the recess 20 of the rotor 8 by the front sphere 18, and the rotor 8 and the cylinder 4 are also interconnected by the locking pin 19.

That is, even if the rotor 8 is rotated without using the regular key 23, the rotor 8 will simply idle in the main body 1 together with the cylinder 4, and the rotor 8 will be moved in the axial direction, and the rotor 8 and the cylinder 4 will be separated. Since it is not possible to disconnect the rotor 8 and connect the rotor 8 to the shaft 14, the push-and-turn lock device of the present invention has extremely high safety against unauthorized unlocking using a picking tool or the like.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a push-and-turn type lock device according to an embodiment of the present invention when the key is inserted, FIG. 2 is a vertical cross-sectional view of the lock device when the key is pushed in, and FIG. FIG. 4 is a sectional view taken along line AA in FIG. 1, and FIG. 4 is a sectional view taken along line BB in FIG. ! It is a sectional view, and the fifth
The figure is a sectional view taken along the line C-C in FIG. 2. Fig. 6 is a sectional view corresponding to Fig. 4 when the rotor is rotated in A for picking etc., and Fig. 7 is a cross-sectional view corresponding to Fig. 6 D
-D line sectional view. DESCRIPTION OF SYMBOLS 1... Main body, 2... Front spherical receiver, 3... Rear spherical receiver, 4... Cylinder, 5... Shaft hole, 6...
- Receiving hole, 7... Connecting portion, 8... Rotor, 9... Tumbler lock mechanism, 9a... Drive pin, 9b... Follower pin, 9c... Pin biasing spring, 9d ...pin hole,
9e... Pin hole, 10... Rear end flange, 11... Connecting part, 12... Recessed part, 13... Drive part, 14...
Shaft, 15... Front end flange, 16... Through hole, 17
...Passive part, 18...Anterior sphere, 20...Indentation,
21... Spring, 22... Rear sphere, 23... Key,
24... Furnace hole, 25... 11-metal, 26... Annular groove on the front side, 27... Annular groove on the rear side, 28... C-ring on the front side, 29... Rear Side C ring, 30...
Guard ring, 31...Guard plate, 32.33
...Mounting nut, 34...Door

Claims (1)

[Claims] A main body 1 having two front and rear spherical receivers 2 and 3 provided on the inner circumferential surface of the rear end; A cylinder 4 having a hole 6 facing the front spherical receiving part 2 and a connecting part 7 provided in the axial direction on the rear end surface; It is locked to the cylinder 4 by a locking mechanism 9, and has a connecting part 11 on the front surface of the rear end flange 10 that can be connected to and detached from the connecting part 7, and a recess 12 on the outer peripheral surface of the rear end flange 10. A rotor 8 has a drive unit 13 provided in the axial direction on the rear surface of the rear end flange 10; the rotor 8 is rotatably but immovably fitted to the rear end of the main body 1; A shaft 1 is provided with a radial through hole 16 facing the spherical receiving part 3 on the rear side of the shaft 1, and a passive part 17 that is detachable from the drive part 13 of a rotor 8 is provided on the front surface of the front end flange part 15.
4; a front spherical body 18 that is removably fitted into the spherical receiving part 2 on the front side of the main body 1 and the receiving hole 6 of the cylinder 4; and the receiving hole 6;
a lock pin 19 which is inserted into the receiving hole 6 and whose inner end is removably engaged with a recess 20 on the outer circumferential surface of the rotor 8 ; A spring 21 pushing outward is fitted into the spherical receiver 3 on the rear side of the main body 1 and the through hole 13 of the shaft 14, and is fitted into the recess 1 of the rotor 8.
2; and the tumbler locking mechanism 9.
is inserted into the keyhole 24 of the rotor 8 to release the lock of the rotor 8 from the cylinder 4, and by pushing the rotor 8 in the axial direction after the lock is released, the receiving hole 6 of the cylinder 4 and the rotor 8 are inserted into the key hole 24 of the rotor 8. A push-and-turn type lock device comprising a key 23 that places the recess 20 of the shaft 14 in a non-facing position, and a key 23 that places the through hole 13 of the shaft 14 and the recess 12 of the rotor 8 in a facing position.