JPS62242072A - Lock apparatus - 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] <Industrial application field> This invention is a vending machine for various goods and a game machine.

This invention relates to a disc tumbler lock applicable to automatic teller machines (5) change machines and all cam lock lock applications.

<Prior Art> Conventionally, this type of disc tumbler lock has a structure shown in FIGS. 8 to 10.

The disc tumbler lock has an inner cylinder 8 rotatably disposed in an outer cylinder 7, and a plurality of disc tumblers 9 with free holes at different positions set in the sleeve direction of the inner cylinder 8.

Each tumbler 9 is biased toward the shear line by a coil spring 91, and is engaged with the engagement groove 71 of the outer cylinder 7 to maintain a locked state. When inserting a key, the tumbler 9 move and line up in a straight line inside the inner cylinder 8, and the inner cylinder 8 rotates when the shear line is interrupted.

<Problems to be Solved by the Invention> In the above-mentioned conventional device, a center hole for the disc tumbler 9 and the spring 91 is provided in the inner cylinder 8 at right angles to the keyhole, and the disc tumbler 9 and the spring 91 are connected to each other. Due to the set configuration, it takes a lot of effort to assemble.

Moreover, the dimensional relationship between the winding diameter of the coil spring 91 and the plate thickness of the tumbler 9 is such that if the winding diameter and plate thickness are the same size, the spring 91 will fall toward the tumbler 9 side during assembly.
Usually, the spring diameter is set large. If the spring diameter is set larger than the tumbler plate thickness, the axial length of the lock body will increase, so the tumbler plate needs to be made thinner.If the tumbler plate thickness is made thinner, the strength of the tumbler will weaken and the force of rotation will increase. It has many drawbacks such as being destroyed.

Therefore, the present invention provides an output shaft having a proximal end supported on the bottom wall of the outer cylinder and a distal end protruding rearward, and an output shaft loaded into the outer cylinder in a stacked state and outputting an output shaft having a tumbler engagement groove formed therein. By providing a plurality of holders that are connected to the shaft and to each other in the axial direction and rotate as a unit, and by incorporating a disc tumbler and a spring into each holder, the configuration and assembly work are simplified, and the unit length The purpose of the present invention is to provide a new lock device that can increase the number of different keys and shorten the lock length.

Means for solving the above problems> Means for solving the above problems will be explained below with reference to FIGS. 1 to 7 corresponding to the embodiment.

This invention comprises an outer cylinder 1 with a front opening and a tumbler engagement groove 15 formed on the inner surface of the cylinder, and an output shaft 2 with a base end supported on a bottom wall 13 of the outer cylinder 1 and a distal end protruding rearward. , a plurality of holders 3 loaded into the outer cylinder 1 in a stacked state and connected to the output shaft 2 and in the axial direction so as to rotate together, and a disc tumbler slidably supported by each holder 3. -4, and a spring 5 that biases the tumbler 4.

Function> When assembling the lock device of the present invention, a plurality of holders 3 into which a disc tumbler 4 and a spring 5 are fitted are prepared, and first, the output shaft 2 and the plurality of holders 3 are inserted into the outer cylinder 1 from the front opening. are laminated and integrally connected, and the outer cylinder 1 is loaded.
Assembly is completed by fitting the guard plate 6 into the opening.

The disc tumbler 4 in each holder 3 has a spring 5
Due to its elasticity, one end is engaged with the engagement groove 15 of the outer cylinder 1, and the locked state is maintained.

When inserting a key into the keyhole, each disc tumbler 4 retreats against the elasticity of the spring 5 and is aligned in the holder 3, and the shear line interrupts the output shaft 2 including the tumbler and holder 3. rotation is allowed and the lock is unlocked.

<Examples> The present invention will be described in detail below based on examples shown in the drawings.

The lock device of the present invention includes an outer cylinder 1 constituting a lock body, and an outer cylinder 1.
An output shaft 2 whose base end is axially supported on the bottom wall 13 and whose distal end protrudes rearward, and the output shaft 2 which is loaded into the outer cylinder 1 in a stacked state and are axially connected to each other and are integrated. A plurality of holders 3 that rotate about their axis, a disc tumbler 4 that is slidably supported by each holder 3 and engages and disengages from the engagement groove of the outer cylinder 1, and a coil spring that biases the tumbler 4 in one direction. It consists of 5.

The outer cylinder l has a cylindrical shape with an open front and a bottom, and has a screw groove 11 on the outer periphery and a flange 12 on the front end so as to be fixed to an equipment panel. The shaft hole 14, a plurality of tumbler engagement grooves 15 in the PJ wall parallel to the cylinder axis direction and diametrically opposed, and one groove in the opening.
A circumferential ring engagement groove 16 is formed, and a plurality of holders 3 incorporating an output shaft 2, a disc tumbler, and a spring are loaded into the outer cylinder 1 from the front opening thereof. The output shaft 2 is integrally equipped with a screw shaft 22 passing through the shaft hole 14 in a boss portion 21 which is supported on the bottom of the outer cylinder 1, and a put bolt 23 is fixed to the screw shaft 22.
An engagement groove 24 of an appropriate width and depth is formed on the surface facing the holder 3 so as to be coupled to the holder 3.

Each holder 3 has a play hole 32 in the center of a circular base plate 31 that matches the outer cylinder 1, which corresponds to the joint shaft cross section, and one surface of the base plate 31 has an engagement groove 24 for the output shaft 2. A convex portion 33 is formed on the other surface to fit the disc tumbler, a spring, and an engagement groove 34 of an appropriate depth that engages the convex portion. A spring receiving part 35 is formed corresponding to the center part of 32, and the output shaft 2 and the plurality of holders 3 are connected to the engagement grooves 24 and 34 and the convex part 3.
The inner cylinder is constructed by integrally connecting the two.

Each holder 3 incorporates two disc tumblers 4 on both sides of the play hole 32, which are biased toward opposite sides.

The paired tumbler 4 is a narrow plate with a thickness that fits between the protrusion 32 and the engagement groove 34, and is supported on the groove wall of the holder 3 with a recess 41 formed on the outer side. A coil spring 5 is interposed between one side wall of the recess 41 and the spring receiving part 35 of the holder 3, and both tumblers 4 are elastically pressed in opposite directions, and their respective tips are engaged with the engagement s15 of the outer cylinder 1. Let's join forces. The inner sides of both tumblers 4 are aligned with the sides of the play hole 32, and the base ends have guide pieces 42 that support the inner sides of the opposing tumblers 4. An actuating portion 43 is formed at the corner portion so as to diagonally correspond to the end portion of the play hole 32.

The operating portion 43 of the tumbler 4 in each holder 3 has a protruding amount to the free hole corner portion according to the engagement dimension of the tip of the tumbler 4 with the engagement groove 15 of the outer cylinder 1. 43 are different in size to form different keys.

A guard plate 6 is rotatably fitted into the opening of the outer cylinder 1.

The guard plate 6 is a metal disc having an outer diameter and an appropriate thickness that fit the opening of the outer cylinder, and has a play hole 61 in the center that matches the cross section of the joint shaft, and an outer circumferential surface. An engagement groove 62 corresponding to the ring engagement groove 16 of the cylinder 1 is provided around the circumference, and a snap ring 63 is engaged between both grooves to form the guard plate 6.
is rotatably held in the opening of the outer cylinder 1.

However, in the locked state, as shown in Figures 1 and 2,
The disc tumbler 4 supported by each holder 3 is engaged with the outer cylinder 1: $15.

When the key is inserted into the play hole 61.32 for unlocking, each disc tumbler 4 moves back and forth against the elasticity of the spring 5, and when the key is inserted to the fixed position, the notch on the key piece and the tumbler 4 are activated. 43, each tumbler 4 retreats into the holder 3 and is aligned in a line, the shear line is interrupted, each holder 3 including the tumbler and the output shaft 2 are allowed to rotate, and the lock is unlocked. .

To re-lock the lock, turn the key in the opposite direction to the unlocking direction.1. The holder 3 including the tumbler 4 and the output shaft 2 rotate together, and the tumbler 4 is locked in correspondence with the engagement groove 15 of the outer cylinder 1.

<Effects of the Invention> As described above, the present invention includes an outer cylinder 1 with a front opening in which a tumbler engagement groove 15 is formed on the inner surface of the cylinder, a proximal end supported on the bottom wall 13 of the outer cylinder 1, and a distal end mounted rearward. Output shaft 2 and outer cylinder 1
a plurality of holders 3 loaded in a stacked state, connected to the output shaft 2 and in the axial direction, and rotated together;
Disc tumbler slidably supported by each holder 3
4 and a spring 5 that biases the tumbler 4, the locking device of the present invention is constructed and assembled as an hour wheel. In particular, each holder 3 has a disc tumbler 4.
This can be accomplished by incorporating the spring 5 and the output shaft 2, the tumbler, and the holder 3 in which the spring is incorporated into the outer cylinder 1, in order, thereby realizing automation of assembly.

In addition, the present invention has several configurations such as preparing lock devices with different key types by preparing several types of outer cylinders 1 with different cylinder shaft lengths and loading the holders 3 according to the cylinder shaft lengths. This has the effect of simplifying the invention and achieving the purpose of the invention.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing an embodiment of the locking device according to the present invention, Fig. 2 is a cross-sectional view taken along line n-n in Fig. 1, Fig. 3 is a view when the lock is unlocked, and Fig. 4 is an output shaft. Fig. 5 is a front view of the holder, Fig. 6 is a sectional view taken along the line - - Fig. 5, Fig. 7 is a diagram showing an example of a disc tumbler, and Figs. 8 to 10 are conventional ones. It is a figure which shows an example. 1...Outer cylinder 13...Bottom wall 15...
... Tumbler engagement groove 2 ... Output shaft 3 ... Holder 31 ...
... Base Fi32 ... Free hole 33 ... Protrusion 34 ... Engagement groove 35
... Spring receiving part 4 ... Disc tumbler 5 ... Spring 6 ... Guard plate module r/7 Site 45th g1. i dry bow≧i2'
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Claims (1)

[Scope of Claims] [1] An outer cylinder with a front opening having a tumbler engagement groove formed on the inner surface of the cylinder, an output shaft having a base end supported on the bottom wall of the outer cylinder and a distal end protruding rearward; A plurality of holders loaded into an outer cylinder in a stacked state and connected to the output shaft and in the axial direction so as to rotate together, and a disc tumbler slidably supported by each holder. A locking device featuring: [2] In the holder, a keyhole is bored in the center of a circular base plate that fits the outer cylinder, and on one side, an engaging convex part having an appropriate width and extending in the diametrical direction centered on the keyhole is provided. Furthermore, an engagement groove having a depth that fits the engagement protrusion and the disc tumbler is formed on the other surface, and a spring receiver is formed on the opposing groove wall of the engagement groove in correspondence with the center of the keyhole. A locking device according to claim 1. [3] The lock device according to claim 1, wherein a guard plate having a keyhole is rotatably fitted into the front opening of the outer cylinder.