JP2595636Y2 - Multiple tumbler tablets - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a multiple tumbler lock for preventing an inserted key from being pushed back to a detecting member pressed against the tip of a key, such as a multiple tumbler lock used in a vending machine or the like. About.

[0002]

2. Description of the Related Art As shown in a partially broken plan view of FIG. 10, a conventional example of a multiple tumbler tablet used for a vending machine or the like is such that a tumbler is inserted into a plug 2 rotatably fitted in a case 1. A hole 3 is provided. In the tumbler insertion hole 3, keyway tumblers 4 are inserted into large-diameter portions 3a formed at four places, and the keyway tumbler 4 divides the tumbler insertion hole 3 into five spaces, and the leftmost space thereof is formed. A pair of normal tumblers 5 is inserted into the space, and one amang tumbler 6 and a pair of normal tumblers 5 are inserted into each of the other spaces.

Each tumbler 4, 5, 6 is formed in a plate shape,
A key insertion hole penetrates the center portion, and the upper end surface and the lower end surface are formed into curved surfaces having substantially the same shape as the outer peripheral surface of the plug 2.
Since the upper and lower surfaces of the keyway tumbler 4 abut against the inner peripheral surface of the case 1, the movement in the vertical direction is restricted, and the keyway tumbler 4 guides the normal tumbler 5 and the amang tumbler 6 that move upward or downward by inserting the key. Sliding surface.

As shown in FIG. 8, a key insertion hole 5a penetrates the center of the pair of normal tumblers 5, one of the normal tumblers 5 is positioned at a solid line on the left side, and the other normal tumbler 5 is positioned on the left side. A spring receiving recess 5b is formed at the dotted line position (see FIG. 8), and one spring (not shown) is inserted into both spring receiving recesses 5a, 5a. Therefore, one normal tumbler 5 is urged downward, and the other normal tumbler 5 is urged upward. At the upper and lower portions of the inner peripheral surface of the case 1, engagement grooves 7 are provided at positions corresponding to the tumbler insertion holes 3 at the locking position (see FIG. 8), and the lower end of one normal tumbler 5 and the other normal tumbler 5 are provided. The upper end of the tumbler 5 engages with the engagement groove 7.

As shown in FIG. 9, a key insertion hole 6a penetrates the center of the amung tumbler 6, and spring receivers 6b project from both sides. On the other hand, the tumbler insertion hole 3 of the plug 2
Are provided on both sides thereof, and a spring 9 is inserted between the spring housing 8 and the spring receiver 6b (see FIG. 9). Accordingly, the amung tumbler 6 is urged upward in FIG. 9, and the upper end is inserted into the engagement groove 7.

[0006] The multiple tumbler lock configured as described above is attached to a vending machine or the like, and when a key is inserted into a keyhole (not shown) provided on the front surface of the plug 2, the key is inserted into each normal tumbler 5. Since the key insertion holes 5a and the key insertion holes 6a of the respective amangle tumblers 6 are pushed and the respective tumblers 5, 6 are immersed in the plug 2, the plug can be turned to the unlocking position by the key. Further, the key inserted into the keyhole presses the detecting member of the vending machine, and the detecting member retreats against the spring force, whereby the key insertion is detected, and the tip of the key is detected by the detecting member. Of spring force.

[0007]

The inserted key is rotated in the unlocking direction after it is completely inserted to the proper insertion position, but the key inserted to the proper position is the spring of the detecting member. When the key is retracted under the force, there is a possibility that the key cannot be unlocked even with the key of the regular code, or the multiple tumbler lock may be damaged if the key is forcibly rotated. An object of the present invention is to provide a multiple tumbler lock in which a key once completely inserted to a regular insertion position is not likely to retreat even if it receives a pressing force of a detection member. is there.

[0008]

In order to achieve the above-mentioned object, the present invention provides a plurality of tumblers formed in a plate shape and having a key insertion hole at a central portion thereof, in a plug rotatably inserted into a case. is inserted and urged in a direction engages the engagement groove provided in the case, upon insertion of the key <br/> chromatography with code surfaces regular, the key insertion hole to the code surface Push
In multi-tumbler lock has been the tumblers are retracted into the outer peripheral surface of the plug, the tumbler multiple Amangu
Tumbler, multiple pairs of normal tumblers, one snap
Is constituted by a tumbler, the above key, flax on both end faces
The code surface for the tumbler is provided, and the side of the key
The normal tumbler cord
A groove having a surface is provided.
An engagement recess is provided for engaging the engagement part provided on the tumbler.
Is, the position of the engaging recess is in the fully inserted position of the key
The engaging portion is at a position where the engaging portion engages, and
Is the pressure of the detection member provided on the multiple tumbler lock.
In this configuration, the engagement portion is not pushed out,
A shape large enough to push out the engaging part with the pulling force
It is characterized by being formed.

[0009]

[Action] configured multiplexed tumbler lock as described above, inserting a key having a code surface of the regular key Kakarigo凹
Section is keyed into the amung tumbler and the normal tumbler.
Move to full key insertion position without interfering with through holes
Then, while engaging with the engaging portion of the snap tumbler, each tumbler is immersed in the plug, and the plug can be rotated .
Engage the snap tumbler with the key's recess at the fully inserted position.
The engagement part is engaged and the pressure of the detection member
Because it does not separate from the part, there is no danger of the key being pushed back,
If the key operator completes the rotation operation and applies a pulling force
The key is pulled out as the engagement part is disengaged from the engagement recess . Ma
Also, when the key is pulled out, the key engagement recess is
The key does not interfere with the bra and normal tumbler
No fire or wear.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. The same parts as those in the conventional example are denoted by the same reference numerals, and detailed description thereof will be omitted. FIG. 1 is a perspective view of main parts of the multiple tumbler tablet, FIG. 2 is a partially broken plan view of the multiple tumbler tablet,
FIG. 3 is a longitudinal sectional view of the multiple tumbler tablet into which the key of the regular code is inserted, and FIG. 4 is a front view of FIG. As shown in FIGS. 1 and 2, the plug 10 rotatably inserted into the case 1 is provided with five tumbler insertion holes 12 by two partition walls 11a and two partition walls 11b having a central opening. Is formed.

A snap tumbler 13 and a pair of normal tumblers 5 and 5 are inserted into the leftmost tumbler insertion hole 12a among the five tumbler insertion holes 12. The snap tumbler 13 is formed in a plate shape, and an engaging portion 14 is provided on an inner surface of a key insertion hole 13a penetrating a central portion on a lower surface on a right side.
b is protruded (see FIGS. 1 and 5).

On both sides of the tumbler insertion hole 12a, a spring accommodating portion 15 is provided at a position facing the snap tumbler 13, and a spring 1 is provided between the spring accommodating portion 15 and the spring receiver 13b.
6 is inserted (see FIG. 5). Therefore, the snap tumbler 13 is urged upward and engages with the engagement groove 17 provided on the inner peripheral surface of the case 1.

An amung tumbler 6 and a pair of normal tumblers 5 and 5 are inserted into the other tumbler insertion holes 12 respectively.
As in the conventional example, the amung tumbler 6 is urged upward to engage with the engagement groove 7, and the normal tumblers 5 and 5 are respectively engaged with the upper engagement groove 7 and the lower engagement groove 7. Be involved. At both ends of the key K of this multiple tumbler lock ,
-Push the normal tumbler 5 and pull the normal tumbler 5
6 is provided with a cord surface 20 to be immersed in the
8), the projection 21 protruding from the side surface of the key K
Push the mang tumbler 6 and pull the amang tumbler 6
Groove 10 having a cord surface 22a to be immersed in
(See FIGS. 6, 7, and 9), and
, The engaging portion 14 of the snap tumbler 13 in the fully inserted position of the key K (see FIG. 1) engaging recesses 18 are provided to engage input (see FIG. 3, FIG. 6). The engagement recess 18 is
Is provided in the normal tumbler when inserting and removing the key K.
5 and the amung tumbler 6 do not interfere. Engagement
The shape of the concave portion 18 is the same as that of the detecting member provided in the multiple tumbler lock.
The engaging portion 14 is not pushed out by the pressure, but is larger than that.
Key 14 is pushed out by the pulling force of the key operator.
(See FIG. 6).

Next, the operation of the multiple tumbler tablet configured as described above will be described. In the locked state, each amung tumbler 6 and each normal tumbler 5 engage with the engagement groove 7,
Since the snap tumbler 13 is engaged in the engagement groove 17, the plug 10 cannot rotate. At this time, the keyhole 19
To insert a key K regular code inserted (see FIG. 4)
And the engagement concave portion 18 is provided between the amung tumbler 6 and each normalizer.
Move inside the keyhole 19 without hitting the tumbler 5,
-At the fully inserted position, the engaging portion 14 of the snap tumbler 13
It is engaged with the engagement recess 18. In addition, each tumbler 5, 6, 13
Is immersed in the plug, and the plug 10 becomes rotatable.

Therefore, even if the pressing force of the detecting member of the vending machine acts on the tip of the key K, there is no possibility that the key K will be pushed back, and the key can be reliably unlocked by rotating the key. Key K
Is rotated to the locked position, the tumbler insertion hole 3 is
Since the tumbler insertion hole 12 overlaps with the engagement groove 17, the key K can be removed, and when the key K is removed, the locked state is restored again.

[0016]

[Effects of the Invention] The present invention is configured as described above, and has the following effects. (1) when the normal code of the key is fully inserted into the keyhole of the multiple tumbler lock, since the snap tumbler engages the key, eliminated is a possibility that the key be pressing force acts on the tip of the key is withdrawn Was. (2) When inserting / removing the key, the key engagement recess is snapped
Pass without interfering with each tumbler other than tumblers
Therefore, the key can be inserted and removed smoothly without impact or resistance.
In addition, there is no wear in the key insertion hole of each tumbler, maintaining accuracy.
Wear. (3) When the key is completely inserted, it is engaged in the key engagement recess.
The engagement part of the snap tumbler is a detection
Although it is not pushed out of the engagement recess by the pressure of the sensing member, the key
With the pulling force of the operator, it is pushed out of the engagement recess.
The key is surely stopped at the fully inserted position.
Also, the key insertion and removal is smooth.

[Brief description of the drawings]

FIG. 1 is a perspective view of main components of a multiple tumbler tablet.

FIG. 2 is a partially broken plan view of the multiple tumbler tablet.

FIG. 3 is a longitudinal sectional view of a multiple tumbler tablet into which a key of a regular code is inserted.

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a sectional view taken along line XX of FIG. 3;

FIG. 6 is a front view of a regular code key.

FIG. 7 is a view as viewed in the direction of arrow W in FIG. 6;

FIG. 8 is a sectional view taken along the line YY of FIG. 3;

FIG. 9 is a sectional view taken along the line ZZ of FIG. 3;

FIG. 10 is a partially broken plan view showing a conventional example of a multiple tumbler tablet.

[Explanation of symbols]

 K key 1 case 5 normal tumbler 5a key insertion hole 5b spring receiving recess 6 amang tumbler 6a key insertion hole 6b spring receiver 7 engagement groove 10 plug 12, 12a tumbler insertion hole 13 snap tumbler 13a key insertion hole 13b spring receiver 14 Joint 16 Spring 17 Engagement groove 18 Engagement recess

Claims (1)

(57) [Scope of request for utility model registration] 1. A plurality of tumblers formed in a plate shape and having a key insertion hole at a central portion are inserted into a plug rotatably inserted into a case, and are engaged with an engagement groove provided in the case. press to activate biased in direction to insert the key <br/> chromatography with code surfaces regular, the key insertion hole to the code surface to
In multi-tumbler lock has been the tumblers are retracted into the outer peripheral surface of the plug, the tumbler plurality of flax ring tumbler, a plurality of pairs of nodes
Multi tumbler, composed of one snap tumbler
The above keys have a cord surface for the amung tumbler on both ends.
Is provided, and the protrusion protruding from the side of the key is
A groove having a code surface for a normal tumbler is provided,
Engagement provided on the snap tumbler outside the protrusion
An engagement recess is provided with which the portion engages, and the position of the engagement recess is in the fully inserted position of the key.
The shape of the engagement recess is at a position where the engagement portion engages.
Is higher than the pressure of the detection member provided on the multiple tumbler lock.
The key operator can be pulled out without pushing out the engagement part.
Force to push out the engaging part.
Multi-tumbler tablets, characterized in that they are used.