JP2704387B2 - Lockout unit mounting structure of pop-out type lock handle device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a lock unit in a pop-out type lock handle device used for a door of a vending machine or the like.

[0002]

2. Description of the Related Art A lock mounting structure of a conventional pop-out type lock handle device is, as disclosed in Japanese Utility Model Publication No. 5-46595, a fixing ring in which one circumferential groove is formed on an outer peripheral surface of a cylinder portion of a lock unit. , And the lock unit is fitted into the handle shaft portion, a mounting screw is screwed in a radial direction from a screw hole on a side surface of the handle shaft portion, and a tip end portion of the mounting screw is engaged with the peripheral groove to lock the lock unit. It is stuck to the handle.

A recent thief has developed a method of pulling out the lock unit by screwing a tapping screw into the front of the lock unit and pulling the screw with a nail remover or the like. In the conventional lock unit mounting structure described above, since the width of the fixing ring is small, the engagement between the cylinder portion and the screw thread is inevitably weak, and the engagement with the handle shaft portion is performed only with one peripheral groove. Because of its weakness against external pulling force, it was not possible to completely prevent unauthorized unlocking by such a method.

Further, since nothing is held at the rear end of the cylinder portion of the lock unit, the fixing strength of the lock unit to the handle shaft is further reduced.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a lockout unit mounting structure of a pop-out type lock handle device that is resistant to unauthorized unlocking due to an external pulling force of the lockout unit.

[0006]

The lock unit mounting structure of the present invention will be described with reference to the accompanying drawings. In the lock unit mounting structure of the present invention, an inner cylinder is attached to a shaft cylinder portion 2a of a case 2 fixed to a door 1. The inner cylinder 3 is mounted so as to be rotatable and immovable back and forth, a locking member 6 is connected to the rear surface of the inner cylinder 3, and the handle shaft of the handle 7 is non-rotatable and slidable back and forth within the inner cylinder 3. In a pop-out type lock handle device in which a spring 7 is inserted into the lock-out type lock handle device 7a, a large fixing ring 11 in which two peripheral grooves 10 are formed in an outer peripheral surface by threading the inner peripheral surface.
To the cylinder 9a of the lock unit 9
Are screwed together until the front surface of the lock unit 9 comes into contact with the rear surface of the head 9b of the lock unit 9.

The lock unit 9 is fitted and inserted until the rear surface of the fixing ring 11 comes into contact with the front surface of a positioning step 12 formed in the center of the inner peripheral surface of the handle shaft 7a.
A U-shaped ring lock 16 composed of a pair of legs 14 and a U-shaped recess 15 formed on the inner surface with a peripheral projection 13 meshing with one peripheral groove 10 is inserted into a lock hole 17 provided on the side surface of the handle shaft 7a. The circumferential projection 13 and the circumferential groove 1
0 through the through hole 18 of the U-shaped concave portion 15 and the screw hole 2 of the convex portion 19 of the handle shaft portion 7a engaged with the concave portion 15.
Attachment screw 21 is screwed into lock unit 9 and handle 7 are integrally fixed.

[0008] The assembled state of the fixing ring 11 and the cylinder portion 9a of the lock unit 9 is kept strong and stable by a large number of screw threads meshing with each other. The assembly state of the lock unit 9 and the handle shaft 7a is determined by the ring lock 16-2.
The tight engagement between the peripheral protrusions 13 and the two peripheral grooves 10 of the fixing ring 11 and the tightening of the ring lock 16 to the handle shaft portion 7a by the mounting screws 21 keep the rigidity strong. Thus, the lock unit 9 withstands pulling out from the front. Since the handle shaft portion 7a is housed in the shaft tube portion 2a of the case 2 when the lock handle device is locked, the mounting screw 21 cannot be removed to remove the ring lock 16 from the fixed ring 11.

The fixing ring 1 fixed to the lock unit 9
1 and the ring lock 16 engage with the positioning step 12 in the handle shaft 7a, so that the lock unit 9 is firmly held from the rear, thereby increasing the stability of the fixation.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated embodiment, the outer peripheral surface of a cylinder 9a of a lock unit 9 is thread-cut over its entire length. A guide projection 22 projecting from the outer surface of the recess 15 of the ring lock 16 is inserted into the axial opening 23 of the inner cylinder 3 and the axial groove 24 of the shaft cylinder 2a of the case 2. When the handle 7 is unlocked, the handle 7 guides the rectilinear projection.

[0011]

As described above, in the lock unit mounting structure of the present invention, the fixing ring 11 having a large width is screwed and mounted on the cylinder portion 9a of the lock unit 9, and two circumferential grooves are formed on the outer peripheral surface of the fixing ring 11. And a ring lock 1 provided with two peripheral projections 13 which are closely engaged with the peripheral groove 10.
6 is engaged with the fixing ring 11, the ring lock 16 is screwed and fixed to the handle shaft 7a from the side, and the fixing ring 11 and the ring lock 16 are further engaged in the positioning step portion 12. It can be attached sufficiently firmly to the handle shaft 7a, and it is possible to prevent unauthorized unlocking due to an external pulling force.

[Brief description of the drawings]

FIG. 1 is a front view of a pop-out type lock handle device using a lock unit mounting structure according to an embodiment of the present invention, in which a handle is housed in a case and locked by the case.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Case 2a Case shaft cylinder part 3 Inner cylinder 6 Locking member 7 Handle 7a Handle shaft part 8 Spring 9 Lock unit 9a Cylinder part 9b Head 10 Peripheral groove 11 Fixing ring 12 Positioning step 13 Peripheral projection 14 Leg 15 U-shaped recess 16 Ring lock 17 Lock hole 18 Through hole 19 Convex part 20 Screw hole 21 Mounting screw 22 Projection 23 Axial opening 24 Axial groove

Claims (1)

(57) [Claims] 1. A shaft cylinder portion 2a of a case 2 fixed to a door 1.
The inner cylinder 3 is mounted rotatably and immovably forward and backward, a locking member 6 is connected to the rear surface of the inner cylinder 3, and the handle shaft 7 a of the handle 7 is non-rotatable and slidable forward and backward inside the inner cylinder 3. In the pop-out type lock handle device which is pushed forward by the spring 8 and is fitted therein, a large fixing ring 11 in which two peripheral grooves 10 are formed in the inner peripheral surface by thread cutting.
To the cylinder 9a of the lock unit 9
Is screwed in until the front surface of the lock unit 9 comes into contact with the rear surface of the head 9b of the lock unit 9.
And a pair of legs formed on the inner surface with a peripheral projection 13 which engages with the peripheral groove 10 of the fixing ring 11 until the rear surface thereof comes into contact with the front surface of a positioning step portion 12 formed in the center of the inner peripheral surface of the handle shaft portion 7a. A U-shaped ring lock 16 composed of a portion 14 and a U-shaped concave portion 15 is diametrically inserted through a lock hole 17 provided on a side surface of the handle shaft portion 7a to form a circumferential projection 13.
The mounting screw 21 is screwed into the threaded hole 20 of the projection 19 of the handle shaft portion 7a that engages with the concave portion 15 from the through hole 18 of the U-shaped concave portion 15 to engage the lock unit 9 and the handle. 7 is a lock-out unit mounting structure of a pop-out type lock handle device which integrally fixes 7.