JP2529526B2 - Adjustable lock - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable lock capable of changing a usable key.

[0002]

2. Description of the Related Art Usually, a plurality of types of pachinko machines have been installed in pachinko parlors by a plurality of pachinko makers.
Currently, the locks attached to the front doors of pachinko machines are used uniformly by each manufacturer. In this way, the locks are uniformly used by each manufacturer, and pachinko machines are often used and distributed.In that case, if different locks are used in each store, each time a pachinko machine is installed, a lock is used. This is because it is necessary to replace it.

However, when the lock is used uniformly by each manufacturer as described above, the key shape corresponding to the lock is easily leaked to a person outside the store, and there is a possibility that the key is forged and the pachinko machine is opened unlawfully. .

As a solution to such a problem,
For example, a variable lock disclosed in Japanese Patent Laid-Open No. 4-118478 has been considered. This product has the following configuration.

That is, the first member is fixedly provided inside the outer peripheral cylinder having the key insertion hole, and the second member slidingly contacts the first member and the third member slidingly contacting the second member in the outer peripheral cylinder. The member is rotatably provided, and the rotation operating shaft is integrally provided with the second member or the third member.

The first, second and third members are provided with a second
And, in a state in which the third member is rotated to a predetermined rotation angle position (normal key insertion / removal position), three engagement mechanism housings that are located on the same circumference around the rotation operation shaft and communicate with each other A pocket is provided, and an engagement mechanism including a protruding pin, first and second blocks, and a coil spring is arranged in each engagement mechanism storage pocket.

Further, the second member has an engagement mechanism storing pocket for the third member in a state where the third member is rotated by a predetermined angle with respect to the second member (a state where the third member is rotated to the code changing position). Three setting spacer supply mechanism storage pockets that communicate with the
A setting spacer supply mechanism including a plurality of setting spacers and a coil spring is provided.

Further, the first, second and third members have a second
In the state where the third member and the third member are rotated to the normal key insertion / removal position, one hole portion that communicates with each other is formed, and the cord reset mechanism including the coil spring, the first and second blocks, and the operating body is formed therein. To provide.

In the case of such a structure, in a normal state, the second and third members are integrally rotated by inserting a regular key and rotating the lock, and the second and third members are locked through the rotary operation shaft. And the unlocking operation is performed.

When changing the code of the key to be used,
First, the operation body of the code reset mechanism is pressed. Then, the operating body engages with the first member and the second member, and
The rotation of the third member with respect to the second member is allowed. In this state, only the third member is rotated to the code changing position by the key used so far to remove the key, and then the key to be changed is inserted into the key insertion hole, and the third key is moved by the key.
The member is rotated to the normal key insertion / extraction position. As a result, the key used as the variable lock can be changed.

[0011]

However, in the case of the structure described above, three members, that is, the fixed first member and the rotatable second and third members are required in the outer peripheral cylinder, and Since a code reset mechanism having a complicated structure is required, there are disadvantages that the number of parts is large and the structure is complicated as a whole.

The present invention has been made in view of the above circumstances, and an object thereof is a variable type in which the number of parts can be reduced and the structure can be simplified, whereby the manufacturability can be improved and the cost can be reduced. It is in providing tablets.

[0013]

The variable lock of the present invention comprises a cylindrical case having a key insertion hole in the front surface thereof, a fixed state provided in the rear portion of the case, and an axial direction in the central portion. A stator having an insertion hole penetrating therethrough, a rotor portion rotatably disposed in a front portion of the case in a state where a rear surface of the casing is in sliding contact with a front surface of the stator, and a rotor portion rotatably inserted in the insertion hole. A rotor that integrally has an operating shaft and that is rotated by a key inserted in the key insertion hole to perform locking and unlocking operations via the operating shaft, and a rotor that is rotated to a normal key insertion / extraction position. A plurality of holes arranged so as to extend in the axial direction communicate with the rotor portion and the stator in the moved state, and are arranged on the same circumference around the operation axis. The 1st pocket part and the normal key insertion / extraction position for the rotor The second pocket portions formed by the same number as the hole portions of the rotor portion so as to communicate with the respective hole portions of the first pocket portion in the stator in the state of being positioned at the code change position rotated by a predetermined angle from And a tip of the key pin is arranged in each of the first pocket portions by a spring so as to project into the key insertion hole, and a corresponding key is inserted into the key insertion hole, and the key pin is pushed by the key. Accordingly, an operating locking mechanism that forms a split surface that matches the contact surface between the rotor portion and the stator to allow rotation of the rotor, and a setting spacer by a spring in the second pocket portion are provided. It is arranged so as to urge the rotor portion side, and when the rotor is rotated to the code changing position, a number corresponding to the shape of the key inserted into the key insertion hole is provided. A first pocket portion of the hole-side setting spacer supply mechanism for supplying the the titration, the spacer in the rotor portion, and the said rotor portion case
It is installed so that it can move between the rotor and the code change position.
When the key is rotated to the left and the key is removed from the key insertion hole,
Move to a position where they engage both the rotor and the case.
A stop key for restricting rotation of the rotor is provided.

In the above structure, the stop key is a low
Axial movement is possible in the storage part formed on the outer periphery of the
Stored and urged toward the key insertion hole by spring
The rotor is rotated to the code change position, and
To the side of the key insertion hole as the key is removed from the key insertion hole
Moves and engages with the guide groove formed on the inner surface of the case
It is preferable to have a configuration .

[0015]

In the case of the structure described above, in the normal state,
The rotor is rotated by inserting a proper corresponding key and rotating the same, and the locking and unlocking operations are performed via the operating shaft that rotates integrally with the rotor.

When changing the code of the key to be used,
Rotate the rotor to the code change position by using the key that has been used so far and remove the key, then insert the key to be changed into the key insertion hole and rotate the rotor to the normal key insertion / extraction position by the key. Let This makes it possible to change the code of the key used.

According to the above-mentioned structure, the members housed in the case are the stationary member and the rotatable rotor integrally having the operating shaft.
Also, it does not require a complicated code reset mechanism.

[0018] Then, though the stop key is provided between the rotor portion and the case, when obtained by rotating the rotor so as to change the code of the key code changes position, the code change position of the rotor by the stop key Since it can be stopped, it is possible to prevent the rotor from moving from the code changing position.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, referring to FIGS. 1 to 4, the case 1
Has a cylindrical shape and has a key insertion hole 2 in the front surface 1a. A pair of first notches 3 and 3 are formed at predetermined positions on the outer peripheral side of the key insertion hole 2 so as to face each other, and a position deviated from the first notches 3 and 3 by about 30 °. In addition, a pair of second notches 4 and 4 are formed in a facing state. On the front face portion 1a of the case 1, a character "O" is displayed at a portion corresponding to the first cutout portion 3, and a character "S" is displayed at a portion corresponding to the second cutout portion 4. Has been done.

The stator 5 has an insertion hole 6 penetrating in the axial direction in the central portion and a convex portion 7 at a predetermined portion of the outer peripheral portion, and is fixedly provided at the rear portion of the case 1. There is. The convex portion 7 is fitted in the groove portion 8 formed on the inner surface of the case 1 to prevent the stator 5 from rotating.

The rotor 9 has a rotor portion 10 having a short cylindrical shape.
And an operating shaft 11 projecting rearward at the center of the rear side of the rotor section 10, and a fitting convex section 12 projecting forward on the front side of the rotor section 10. And
The rotor part 10 is located in the front part of the case 1 and the stator 5
It is rotatably arranged in sliding contact with the front surface of
The operating shaft 11 is rotatably inserted in the insertion hole 6 of the stator 5. The rear end of the operating shaft 11 projects rearward of the stator 5, and a lock mechanism (not shown) is provided here. The fitting convex portion 12 faces the key insertion hole 2, and a fitting groove 13 is formed at a predetermined portion of the fitting convex portion 12.

The rotation range of the rotor 9 with respect to the case 1 and the stator 5 is restricted by the convex portion 14 provided on the outer peripheral portion of the front surface of the rotor portion 10. in this case,
The rotation range of the rotor 9 is set to a range of about 120 ° to the left and right about the key insertion / extraction position (the position where the fitting groove 13 corresponds to one of the first cutouts 13) of the rotor 9 shown in FIG. ing.

The rotor portion 10 is formed with four hole portions 15 each extending in the axial direction. These holes 15 are arranged on the same circumference with the operating shaft 11 as the center. Further, a rotor 9 is attached to the stator 5 as shown in FIG.
In the state of being rotated to the key insertion / removal position shown in FIG.
Four hole portions 16 communicating with each other are formed, and the hole portion 15 of the rotor portion 10 and the hole portion 16 of the stator 5 form a first pocket portion 17 (see FIG. 8). Therefore, four first pocket portions 17 are arranged on the same circumference centered on the operating shaft 11.

Further, in the stator 5, there are the same number of second pocket portions 18 as the first pocket portions 17 that are located at a position displaced by about 30 degrees from the hole portions 16 and are formed of axially extending holes. In this case, four are formed. These four second
Similar to the first pocket portion 17, the pocket portion 18 is arranged on the same circumference with the actuating shaft 11 as the center, and the rotor 9 has the code changing position shown in FIG. In the state of being rotated to a position corresponding to one of the notches 14), the holes 15 of the rotor 10 communicate with each other (see FIG. 11). A lid 19 is attached to the back side of the stator 5, and the lid 19 allows the first portion of the stator 5 to be attached.
Each hole 16 of the pocket 17 and each second pocket 18
The rear surface is closed.

Then, the first and second pocket portions 1
An operating locking mechanism 20 is provided in each of the first pocket portions 17 among the numbers 7 and 18, and a setting spacer supply mechanism 21 is provided in each of the second pocket portions 18.

Of these, as shown in FIG. 8, the operation locking mechanism 20 includes, from the lid 19 side, a spring 22 formed of a compression coil spring, a locking pin 23, and a spacer 24 for setting a required number (setting is made. Spacer 24 is provided only at one place in the state of FIG. 8), and key pin 2
5, and the spring 22 urges the tip of the key pin 25 so as to project into the key insertion hole 2. The key pins 25 are restricted from projecting forward by the back side of the front surface 1a of the case 1.

The setting spacer supply mechanism 21 is composed of a spring 26, which is a compression coil spring, and a required number of setting spacers 24 from the lid 19 side.
Is urged toward the rotor unit 10.

In the rotor portion 10, a storage portion 27 is formed which is located at a portion corresponding to the fitting groove 13 of the fitting convex portion 12 and whose front and side surfaces are open. A spring 28, which is a compression coil spring, and a stop key 29 are arranged in the housing portion 27, and the stop key 29 is biased forward by the spring 28. In addition, a part of the front end of the stop key 29 is provided in the key insertion hole 2
Is facing.

When the rotor 9 is rotated to the key insertion / removal position shown in FIG. 2, the stop key 29 is prevented from moving forward by the step portion 30 formed in the case 1 as shown in FIG. However, when the rotor 9 is rotated to the code changing position shown in FIG. 5, the rotor 9 projects forward along the guide groove 31 formed in the case 1 as shown in FIG. The groove 31 is engaged with the groove 31. When the stop key 29 is engaged with the guide groove 31, the stop key 29 is engaged with both the rotor portion 10 and the case 1, and thus the stop key 29 allows the rotor 9 for the case 1 to be engaged.
The rotation of is restricted.

Here, in the variable lock having such a structure,
As shown in FIG. 8, among the operation locking mechanisms 20 provided in the four first pocket portions 17, the third to left operation locking mechanisms 20 do not include setting spacers, Only the right end actuating and locking mechanism 20 is provided with one setting spacer 24, and such a configuration is referred to as a setting code [1110]. The variable lock having such a structure is
It is attached and fixed to a predetermined portion of a pachinko machine (not shown).

On the other hand, FIG. 7 shows a key 32 used in the variable lock having the above construction. The key 32 includes a keyhole insertion portion 34 having a pair of convex portions 33, 33 on the outer peripheral portion of the tip portion. A fitting concave portion 35 having a shape corresponding to the fitting convex portion 12 of the rotor 9 is formed at the center of the end surface of the key hole inserting portion 34, and the convex portion for fitting the fitting concave portion 35 into the fitting groove 13 is formed. The part 36 is formed.

Further, cutout recesses 37a to 37d for pressing the key pin 25 are provided on the outer peripheral portion of the keyhole insertion portion 34.
Are formed at four locations. These notched recesses 37a-3
The depth dimension 7d of 7d is appropriately set corresponding to the operation locking mechanism 20 arranged in the first pocket portion 17. In this case, of the four cutout recesses 37a to 37d,
The depth dimension h of the three notch recesses 37a to 37c is set to the same dimension, and the depth dimension h of the one notch recess 37d is set deeper than them. In this case, the setting code of the key 32 is [1110].

Next, the operation of the above configuration will be described. As shown in FIGS. 2 and 4, the rotor 9 is located at the key insertion / extraction position,
When the key is not inserted into the key insertion hole 2, as shown in FIG. 8, the key pin 25 of each operation locking mechanism 20 is in a state of protruding into the key insertion hole 2, and the protruding height at this time is Is in the H position in FIG. In this state, the locking pin 23 of each operation locking mechanism 20 is positioned so as to intersect the contact surface X between the rotor portion 10 and the stator 5 in the rotor 9, and the rotor portion 10 and the stator 5 are separated from each other. Since the rotor 9 and the rotor 9 are engaged with each other, the rotor 9 cannot be rotated even if the rotor 9 is simply rotated.

In the state shown in FIG. 8, the key 32 of the setting code [1110] is used as the legitimate corresponding key, and the key 3
When the key hole insertion portion 34 is inserted into the key insertion hole 2 and pushed in while the fitting concave portion 35 of No. 2 is fitted to the fitting convex portion 12 of the rotor 9, the corresponding key pin 25 is formed by the notch concave portions 37a to 37d. It is pushed into the state shown in FIG.

In the state of FIG. 9, the key pins 2 at four locations
The third key pin 25 from the left of 5 is pushed to the protrusion height H1, and the key pin 25 and the locking pin 23 are pushed.
The split surface of the contact point X coincides with the contact surface X of the rotor portion 10 and the stator 5, and the key pin 25 at the right end is pushed to the protrusion height H0, and the split surface of the setting spacer 24 and the locking pin 23 is the above. It comes to coincide with the contact surface X, and the rotation of the rotor 9 is permitted.

Therefore, in the state shown in FIG. 9, by rotating the key 32, the operating shaft 11 is rotated together with the rotor 9, and the locking and unlocking operations are performed via a lock mechanism (not shown). When the rotor 32 is rotated by the key 32 to the key insertion / extraction position and the key 32 is removed, the key pins 25 that have been pushed in project and the state shown in FIG. 8 is restored.

In the variable lock, the key 3 is used.
If, for example, a key (not shown) having the setting code [1101] is inserted into the key insertion hole 2 instead of 2, the third key pin 25 from the left has a protrusion height H as shown in FIG.
It is pushed in only to 0, the locking pin 23 is positioned so as to intersect the contact surface X between the rotor portion 10 and the stator 5, and is engaged with both the rotor portion 10 and the stator 5. Therefore, even if the rotor 9 is to be rotated, it cannot be rotated.

Next, the procedure for changing the setting code, that is, changing the key used in the variable lock will be described.

First, in the state where the rotor 9 is rotated to the key insertion / extraction position, the key 32 (the key that has been used until now) before being changed is inserted into the key insertion hole 2 and pushed in (see FIG. 9).
The key 32 rotates the rotor 9 from the key insertion / removal position to the code changing position shown in FIG. Then, as shown in FIG. 11, each hole portion 15 of the rotor portion 10 is brought into a state of communicating with the second pocket portion 18 of the stator frame 5, and
As shown in FIG. 5, the stop key 29 corresponds to the guide groove 31 in the case 1.

In this state, when the key 32 is removed from the key insertion hole 2, each key pin 25 projects forward and the stop key 2
9 moves forward along the guide groove 31 and engages with both the rotor portion 10 and the case 1, so that the rotation of the rotor 9 with respect to the case 1 is restricted by the stop key 29. (See FIG. 6).

Then, instead of the key 32, the key to be changed, for example, the key of the setting code [1101] (not shown)
Insert into the key insertion hole 2 and push in. Then, as shown in FIG. 12, the protrusion height of the third key pin 25 from the left is H.
As it becomes 0, only 1 in the third hole 15 from the left
The individual setting spacers 24 are supplied. In the state of FIG. 12, the rotation of the rotor 9 is permitted.

From the state shown in FIG. 12, the rotor 9 is rotated to the normal key insertion / removal position by the key to be changed.
When the key is removed from the key insertion hole 2, each first pocket portion 17
The operation locking mechanism 20 of is in the state shown in FIG. In this state, only 1 in the first pocket portion 17 third from the left
The individual setting spacers 24 are included, and the setting code is changed to [1101]. This completes the change of the setting code of the variable lock.

The key used in the variable lock of this embodiment is defined as "0" when the key pin 25 is pushed to H0 and "1" when the key pin 25 is pushed to H1 in the four cutout recesses 37a to 37d. In this case, as shown in FIG. 14, four types A to D (that is, code [0111],
There are five types: [1011], [1101], [1110]) and master key M (code [1111]).
However, the master key M is not used normally because any setting code (combination of the operation locking mechanism 20) on the variable lock side can be used, and is used only when the keys A to D are lost, for example. To do so.

According to the above-described embodiment, the members housed in the case 1 are the stator 5 in the fixed state and the rotatable rotor 9 integrally having the operating shaft 11, Further, since the code reset mechanism having a complicated structure which is conventionally required is not required, the number of parts can be reduced, the structure can be simplified, and accordingly, the manufacturability can be improved and the cost can be reduced. Further, since the structure is simple, the reliability can be improved.

Further, in the above embodiment, the rotor portion 1
A stop key 29 is provided between 0 and the case 1, and when the rotor 9 is rotated to the code change position to change the code of the key, the stop key 29 keeps the rotor 9 in the code change position. Therefore, it is possible to prevent the rotor 9 from moving from the code changing position, and it is possible to easily change the code. Moreover, in this case, the stop key
-29 is for keeping the rotor 9 in the code changing position.
Since it is a dedicated member, the number and thickness of the setting spacers 24
Irrespective of
There is an advantage that can be stopped.

The variable lock of the present invention is not limited to a pachinko machine lock, but can also be used for a lock provided in a drawer of a desk, for example.

[0047]

As is apparent from the above description, according to the variable lock of the present invention, although the usable key can be changed, the number of parts can be reduced and the structure can be simplified. As a result, the manufacturability can be improved and the cost can be reduced, which is an excellent effect.

Further, when the code is changed, the rotation of the rotor is restricted by the stop key.
You can easily change the code. Shi
Even in this case, the stop key will move the rotor to the code change position.
Since it is a dedicated member for retaining, setting spacer
Reliable rotor code changes, regardless of number and thickness
It has the advantage of staying in position.

[Brief description of drawings]

FIG. 1 is an overall exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a front view of a state in which the rotor is rotated to a normal key insertion / extraction position.

[Figure 3] Rear view

FIG. 4 is a sectional view taken along the line AA in FIG.

FIG. 5 is a front view of a state in which the rotor is rotated to the code changing position.

6 is a sectional view taken along line BB in FIG.

FIG. 7 is a perspective view of a key

FIG. 8 is a cross-sectional view showing a main part in an expanded state in the state of FIG.

9 is a view corresponding to FIG. 8 with a corresponding key inserted in the state of FIG.

10 is a diagram corresponding to FIG. 8 in a state where an unsupported key is inserted in the state of FIG.

11 is a view corresponding to FIG. 8 in a state where the rotor is rotated to the code changing position from the state of FIG. 9.

12 is a view corresponding to FIG. 8 showing a state in which a key to be changed is inserted after the key before the change is removed in the state of FIG.

13 is a view corresponding to FIG. 8 showing a state where the rotor is rotated from the state of FIG. 12 to a normal key insertion / extraction position and the key is removed.

FIG. 14 is a diagram showing types of keys.

[Explanation of symbols]

1 is a case, 2 is a key insertion hole, 5 is a stator, 6 is an insertion hole, 9 is a rotor, 10 is a rotor part, 11 is an operating shaft, 1
Reference numerals 5 and 16 are holes, 17 is a first pocket portion, 18 is a second pocket portion, 20 is an operation locking mechanism, 21 is a setting spacer supply mechanism, 22 and 26 are springs, 23 is a locking pin,
24 is a setting spacer, 25 is a key pin, and 27 is a storage
Reference numeral 28 is a spring, 29 is a stop key, 31 is a guide groove, and 32 is a key.

Claims (2)

(57) [Claims] 1. A cylindrical case having a key insertion hole on a front surface thereof, a stator fixedly provided at a rear portion of the case, and having an axially penetrating insertion hole formed at a central portion, A rotor portion rotatably disposed in a front portion of the case in a state where a rear surface of the casing is in sliding contact with a front surface of a stator; and an operating shaft rotatably inserted into the insertion hole, A rotor that is rotated by a key inserted into a key insertion hole to perform locking and unlocking operations via the actuating shaft, and a rotor and a stator that rotate in a state where the rotor is rotated to a normal key insertion / extraction position. These hole portions formed to extend in the axial direction are configured to communicate with each other, and
In a state in which the plurality of first pocket portions arranged on the same circumference centered on the operation shaft and the rotor are positioned at a code change position rotated by a predetermined angle from the normal key insertion / removal position, The stator has a plurality of second pocket portions formed so as to communicate with the holes of the first pocket portion of the rotor portion, and the first pocket portion is provided with a spring so that the tip of the key pin has the key portion. It is arranged so as to project into the insertion hole, and a proper corresponding key is inserted into the key insertion hole and the key pin is pushed in by the key, so that the division matches the contact surface between the rotor portion and the stator. An actuating locking mechanism that forms a surface to allow rotation of the rotor; and a spring for urging the setting spacer toward the rotor portion in each of the second pocket portions. It is, in a state in which the rotor is rotated in the code change position,
A setting spacer supply mechanism for supplying a number of setting spacers corresponding to the shape of the key inserted in the key insertion hole to the hole portion side of the first pocket portion in the rotor portion;
The rotor is movably provided between the case and
It is rotated to the code change position and the key is removed from the key insertion hole.
When they are damaged, they will engage both the rotor part and the case.
A variable lock comprising a stop key that moves to a position and restricts rotation of the rotor . 2. The stop key is formed on the outer peripheral portion of the rotor portion.
It is stored in a separate storage unit so that it can move in the axial direction, and
The rotor is biased toward the key insertion hole by the pulling
It is rotated to the code change position and the key is removed from the key insertion hole.
Move to the side of the key insertion hole,
The variable lock according to claim 1, wherein the variable lock is configured to engage with a guide groove formed on the surface .