JP3272691B2 - Variable code cylinder lock 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 cylinder lock device used for opening / closing and operation control of various buildings, rooms, devices, vehicles, and the like.

[0002]

2. Description of the Related Art When a key is lost or stolen,
Or if the user changes, it is safest to replace the entire cylinder lock device, but since the replacement cost and the labor of replacement work are large, instead of replacing the entire cylinder lock device, A variable code type cylinder lock device in which a combination of lock pins inside the lock device is changed and a different key code is set from before is generally used. However, the conventional variable-cylinder locking device requires a complicated structure and many components, and a special code conversion key in addition to the keys used for normal locking and unlocking. Yes, the cost tended to be relatively high.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a cord-variable cylinder lock device in which the structure is simplified, the production and assembly costs are inexpensive, and there is no need to specially prepare a code conversion key. It is to provide.

[0004]

Means for Solving the Problems Hereinafter, a description will be given using reference numerals in the accompanying drawings. A variable code type cylinder lock device according to the present invention comprises four driver pins at 90 ° intervals in a cross section orthogonal to an axis. A plurality of accommodation holes 2A, 2B, 2C and 2D are provided along the axis , and one driver pin accommodation hole is provided .
Selector pin at the tip behind the 2D formation site
A fixed outer cylinder 1 provided with a receiving hole 19 in a radial direction ; two code pin receiving holes 4A and 4B which are received in the fixed outer cylinder 1 and have a transverse section perpendicular to the axis are provided with two axially extending key insertion holes 5 through 90; A plurality of sets of rotating inner cylinders provided along the axis at a distance from each other; and driver pin receiving holes 2A, 2B, 2C, 2 of the fixed outer cylinder 1.
D, and the driver pins 6A, 6B, 6C, 6D urged toward the rotating inner cylinder 3 by the spring 7
Code pins 8A, which are accommodated in the code pin accommodating holes 4A, 4B of the rotating inner cylinder 3 and whose distal end portions project into the key insertion holes 5,
8B; driver pin receiving holes 2A, 2 of fixed outer cylinder 1
B, 2C, 2D and the code pin receiving holes 4A of the rotary inner cylinder 3;
4B, and moves either the fixed outer cylinder 1 or the rotating inner cylinder 3
Change pins 9A and 9B, which are not removed from the fixed outer cylinder 1; the change pins 9A and 9B are accommodated in a selector pin accommodation hole 19 in the radial direction of the fixed outer cylinder 1 and are urged by a spring 20 so that the tip end enters the key insertion hole 5 of the rotating inner cylinder 3. Selected selector pin 21;
The code pin 8 is inserted into the key insertion hole 5
A, 8B, a plurality of cord recesses 11 to which the leading ends of the A and 8B engage and disengage are formed on the side surfaces, and retaining grooves 22 for engaging the selector pins 21 are provided at the edges of the portions corresponding to the selector pin housing holes 19, and A side groove 13 is formed along the direction.
The front end of the side groove 13 is formed to be bent in the lateral direction and
From No. 1 which is open to the serial retaining grooves 22 and a plurality of keys 10-1 ... 10-X of X number; the side groove 13 of the key 10
The distal end portion which is fitted and bent in the lateral direction comprises a closing bar 12 which fills the retaining groove 22.

Then, the closing bar 12 is inserted into the key insertion hole 5 with the closing bar 12 being fitted into the side groove 13 and the retaining groove 22 of the key 10 , and the closed end of the closing bar 12 is bent.
Te Push the selector pin 21 to the fixed outer cylinder 1 of the selector pin receiving hole 19, by extracting the key 10 from the key insertion hole 5 at a position a rotating inner cylinder 3 is rotated 90 degrees from the position, code the recess 11 of the key 10 The change pins 9A and 9B are moved in accordance with.

In the cord variable cylinder lock device thus configured, in the initial state of delivery, the portion where the selector pin housing hole 19 is provided, as shown in FIG. The distal end of the selector pin 21 whose base end is accommodated in the hole 19 enters the key insertion hole 5 of the rotary inner cylinder 3. As shown in FIG. 13, the tip of the driver pin 6 </ b> A and the change pin 9 </ b> A
Is inserted into the cord pin receiving hole 4A, and the driver pin 6
The tip of C and the change pin 9B are in the pin hole 4B.
Enter the driver pin 6B and driver pin 6D
Are in contact with the peripheral surface of the rotating inner cylinder 3. Therefore, the rotating inner cylinder 3 is restrained from rotating with respect to the fixed outer cylinder 1.

When the first key 10-1 is inserted into the key insertion hole 5 of the rotary inner cylinder 3 by inserting the closing bar 12 into the side groove 13 from the initial delivery state shown in FIG. In the part where the key is provided, as shown in FIG. 14, the tip of the selector pin 21 is pushed out from the key insertion hole 5, and the first key 10-1 and the closing bar 12 and the selector pin 21 The contact point is on the peripheral surface of the rotating inner cylinder 3. As shown in FIG. 15, at the portion where the driver pin receiving hole 2 is provided, the tip of the driver pin 6A is pushed out from the code pin receiving hole 4A, and the contact between the driver pin 6A and the change pin 9A is rotated. 3, and the tip of the driver pin 6C is pushed out of the cord pin housing hole 4B, and the contact point between the driver pin 6C and the change pin 9B is on the peripheral surface of the rotary inner cylinder 3. The driver pin 6B and the driver pin 6D are in contact with the peripheral surface of the rotating inner cylinder 3. Therefore, the rotating inner cylinder 3 is set to be rotatable with respect to the fixed outer cylinder 1.

[0008] In the state where the first key is inserted as shown in FIG.
When the number key 10-1 is rotated 90 degrees in the clockwise direction, the first key 10-1 and the end face of the closing bar 12 are located at the portion where the selector pin housing hole 19 is provided, as shown in FIG. The distal end of the selector pin 21 contacts the inner peripheral surface of the fixed outer cylinder 1 and the peripheral surface of the rotating inner cylinder 3.
At the portion where the driver pin receiving hole 2 is provided, as shown in FIG. 17, the end face of the first key 10-1 contacts the driver pin 6A, the change pin 9A contacts the driver pin 6B, and the driver pin 6C Abuts on the peripheral surface of the rotating inner cylinder 3, and the change pin 9B abuts on the driver pin 6D. In the process of extracting the first key 10-1 as described above, the change pin 9A corresponds to the depth of the code recess 11 where the tip of the code pin 8A engages and disengages. 2B, and the change pin 9B moves between the code pin housing hole 4B and the driver pin housing hole 2D according to the depth of the code recess 11 where the tip of the code pin 8B is disengaged. Moving.

When the first key and the closing bar are removed from the 90-degree rotation state shown in FIG. 14, the selector pin 21 is rotated at the portion where the selector pin housing hole 19 is provided as shown in FIG. It is in contact with the peripheral surface of the inner cylinder 3. At the portion where the driver pin receiving hole 2 is provided, as shown in FIG. 19, the driver pin 6A abuts on the peripheral surface of the rotary inner cylinder 3, and the tip of the driver pin 6B enters the code pin receiving hole 4A. The driver pin 6C is in contact with the peripheral surface of the rotary inner cylinder 3, and the tip of the driver pin 6D is inserted into the code pin receiving hole 4B. Therefore, the rotating inner cylinder 3 is restrained from rotating with respect to the fixed outer cylinder 1. In the process of extracting the first key 10-1,
The change pin 9A corresponds to the depth of the cord recess 11 where the tip of the code pin 8A engages and disengages.
A, and the change pin 9B moves between the pin A and the driver pin housing hole 2B, and the change pin 9B corresponds to the depth of the code recess 11 where the tip of the code pin 8B engages and disengages. It moves in and out between the holes 2D.

The second key 1 having a key code different from the first key 10-1 by changing the depth of the code recess 11
When 0-2 is inserted into the key insertion hole 5 of the rotary inner cylinder 3 for changing the code of the cylinder locking device without being combined with the closing bar 12, when the driver pin housing hole 2 is provided, As shown in FIG.
A is in contact with the peripheral surface of the rotary inner cylinder 3, the contact point between the change pin 9A and the code pin 8A is on the peripheral surface of the rotary inner cylinder 3, the driver pin 6C is in contact with the peripheral surface of the rotary inner cylinder 3, The contact point between the code pin 8B and the change pin 9B is on the peripheral surface of the rotary inner cylinder 3. On the other hand, at the portion where the selector pin 21 is provided, as shown in FIG.
End faces the inner peripheral surface of the fixed outer cylinder 1, and the distal end of the selector pin 21 contacts the peripheral surface of the rotating inner cylinder 3.

[0011] From the insertion position shown in FIG.
When 0-2 is rotated 90 degrees in the counterclockwise direction, in the portion where the driver pin housing hole 2 is provided, FIG.
As shown in the figure, the driver pin 6A and the code pin 8A
Are located on the peripheral surface of the rotary inner cylinder 3, the driver pin 6B is in contact with the peripheral surface of the rotary inner cylinder 3, and the contact point of the code pin 8B and the driver pin 6C is on the peripheral surface of the rotary inner cylinder 3. The change pin 9B is in contact with the end surface of the second key 10-2 and the peripheral surface of the rotary inner cylinder 3. On the other hand, in the portion where the selector pin housing hole 19 is provided, FIGS.
As shown in FIG. 4, since the closing bar 12 does not exist, the tip of the selector pin 21 enters the retaining groove 22 of the second key 10-2. Therefore, it is impossible to extract the second key 10-2. The second key 10-2 in which the change of the key code has been completed is rotated clockwise by 90 degrees, returned to the insertion position in FIGS. 20 and 21, and then removed from the key insertion hole 5. Therefore, the second key 10
-2 is a locking position shown in FIGS. 20 and 21;
The positions shown in FIG. 22 and FIG. 23 are the unlocking positions, and the second key 10-2 is a one-point insertion / removal type.

Hereinafter, similarly, the third key 10-3 to X
A key code conversion operation is performed as needed up to the number key 10-X, and the change pins 9A and 9B are moved to the fixed outer cylinder 1 side or the rotary inner cylinder 3 side according to the depth of the code recess 11 of the key 10. Go to

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment shown in the drawings, a cord recess 11 of a key 10 is provided on a side surface of an abdomen of the key 10, and a retaining groove 22 buried flush with a side surface of an edge portion by a closing bar 12. It is provided at the tip of the first key 10-1 to the X key 10-X. A side groove 13 for accommodating the closing bar 12 is provided with a key 10 at an intermediate portion between two rows of left and right cord recesses 11 arranged in an offset manner.
, The base end of which is enlarged at the knob of the key 10, and the closing bar 12 is held in a state of being pushed into the side groove 13 by the fingertip of the operator.
The rotating inner cylinder 3 accommodated in the fixed outer cylinder 1 is prevented from moving in the axial direction by known means, and is attached to the tip screw shaft portion 14 of the rotating inner cylinder 2 projecting from the rear end of the fixed outer cylinder 1. Is
A stopper plate 15 is fitted, and is fixed by a nut 17 via a rotation angle control plate 16. A compression coil spring is used as the spring 7 for biasing the driver pin and the spring 20 for biasing the selector pin, and a spring retainer 18 is fitted and fixed to each outer end of the driver pin receiving hole 2 and the selector pin receiving hole 19. I have.

[0014]

As described above, in the variable cord type cylinder lock device of the present invention, a plurality of sets of four driver pin receiving holes 2A, 2B, 2C, 2D are provided in the fixed outer cylinder 1 at 90-degree intervals. Behind the formation of the driver pin receiving hole 2D
Selector pin receiving hole 1
9 are provided in the radial direction, and a plurality of sets of two code pin receiving holes 4A, 4B are provided in the rotary inner cylinder 3 at a 90-degree distance from the key insertion hole 5, and the driver pin receiving holes 2A, 2B, 2C, 2D are provided.
The springs 7 move the driver pins 6A, 6B, 6C and 6D housed in the selector pin 21 toward the rotary inner cylinder 3, and move the selector pin 21 stored in the selector pin housing hole 19 toward the rotary inner cylinder by the spring 20. The cord pins 8A, 8B and the change pins 9A, 9B are accommodated in the cord pin accommodating holes 4A, 4B, and the cords are provided on the side surfaces of a plurality of keys 10-1... Pin 8A, 8
B is formed in the cord recess 11 to which the key is engaged and disengaged, and a retaining groove 22 for engaging the selector pin 21 is provided at the edge of each key 10.
To form a side groove 13, and move the tip of the side groove 13 sideways.
And formed in the retaining groove 22 by bending in the
The bent point of the closing bar 12 housed in the ten side grooves 13
Since the end portion covers the retaining groove 22 of the key 10 , the structure is simplified, the number of components is reduced, and the key 10 can be provided at a low cost.

A state in which the closure 12 is fitted into the side groove 13 of the key 10 so as to make up the retaining groove 22.
Then, the selector pin 19 is pushed back into the selector pin housing hole 19 of the fixed outer cylinder 1 by inserting the key 10 into the key insertion hole 5 at a position where the rotary inner cylinder 3 is rotated 90 degrees from the position. Extraction, key 10
Change pins 9A corresponding to the above-mentioned cord recesses 11;
Since the 9B is moved, the key code change key does not need to be specially prepared unlike the conventional device, and the key code change can be easily performed by simply using the closing bar 12.

[Brief description of the drawings]

FIG. 1 is a front view of a variable cord type cylinder lock device according to an embodiment of the present invention.

FIG. 2 is a right side view of the cylinder lock device.

FIG. 3 is a front view of a No. 1 key to an X number key used in the cylinder lock device.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

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

FIG. 6 is a front view of a closing bar used in the cylinder locking device.

FIG. 7 is a left side view of the closing bar.

FIG. 8 is a sectional view taken along line GG of FIG. 6;

FIG. 9 is a front view showing a state where the closing bar is fitted into the first key.

FIG. 10 is a sectional view taken along line CC of FIG. 9;

FIG. 11 is a sectional view taken along line DD of FIG. 9;

FIG. 12 is a sectional view taken along the line EE of FIG. 2 in an initial state of delivery of the cylinder lock device, and shows a portion where a selector pin housing hole is provided.

FIG. 13 is a sectional view taken along line FF of FIG. 2 in an initial state of delivery of the cylinder lock device, and shows a portion where a driver pin receiving hole is provided.

FIG. 14 shows a state in which the closing bar is fitted into the side groove of the first key from the initial state shown in FIG.
FIG. 3 is a cross-sectional view taken along line EE of FIG. 2 when inserted into an insertion hole, showing a portion where a selector pin housing hole is provided.

FIG. 15 shows a state in which the closing bar is fitted into the side groove of the first key from the initial state shown in FIG.
FIG. 3 is a cross-sectional view taken along line FF of FIG. 2 when inserted into an insertion hole, showing a portion where a driver pin housing hole is provided.

16 is a cross-sectional view taken along the line EE of FIG. 2 when the first key is rotated clockwise by 90 degrees from the inserted state shown in FIG. 14, and a selector pin receiving hole is provided. The parts are shown.

17 is a cross-sectional view taken along the line FF of FIG. 2 when the first key is rotated clockwise by 90 degrees from the insertion state shown in FIG. 15, and a driver pin receiving hole is provided. The parts are shown.

18 is a view showing a state where the first key and the closing bar are removed from the 90-degree rotation state shown in FIG.
FIG. 4 is a cross-sectional view taken along line E, showing a portion where a selector pin housing hole is provided.

FIG. 19 is a cross-sectional view taken on line F- in FIG. 2 when the first key and the closing bar are removed from the 90-degree rotation state shown in FIG. 17;
FIG. 4 is a cross-sectional view taken along line F, showing a portion where a driver pin receiving hole is provided.

20 is a cross-sectional view taken along the line FF of FIG. 2 when the second key is inserted from the extraction state shown in FIG. 19, and shows a portion where a driver pin housing hole is provided.

21 is a cross-sectional view taken along the line EE of FIG. 2 when a second key is inserted from the extraction state illustrated in FIG. 18, and illustrates a portion where a selector pin housing hole is provided.

FIG. 22 shows a state in which the second key is rotated counterclockwise by 290 degrees from the inserted state shown in FIG. 20;
5 is a sectional view taken along line FF of FIG.

23 is a cross-sectional view taken along the line EE of FIG. 2 when the second key is inserted from the extraction state shown in FIG. 18, and shows a portion where a selector pin housing hole is provided.

FIG. 24 is a longitudinal sectional view of a main part of the cylinder lock device in a state where the No. 2 key is inserted in FIG. 22.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed outer cylinder 2 Driver pin accommodation hole 3 Rotating inner cylinder 4 Key insertion hole 5 Pin accommodation hole 6 Bottom wall of sidebar accommodation hole 7 Driver pin biasing spring 8 Code pin 9 Change pin 10 Key 11 Code recess 12 Closure Bar 13 Side groove 19 Selector pin accommodation hole 20 Selector pin biasing spring 21 Selector pin 22 Retaining groove

Claims (1)

(57) [Claims] 1. A cross section orthogonal to the axis is provided at intervals of 90 degrees.
A plurality of driver pin receiving holes 2A, 2B, 2C, 2D are provided along the axis , and one driver pin receiving hole 2A, 2B, 2C, 2D is provided .
A selector pin is provided at the tip behind the D formation site.
A fixed outer cylinder 1 provided with a container hole 19 in the radial direction ; two code pin receiving holes 4A and 4B accommodated in the fixed outer cylinder 1 and having a transverse section perpendicular to the axis and having a key insertion hole 5 in the axial direction.
A plurality of sets of rotating inner cylinders 3 provided along the axis at a distance of 90 degrees from each other; and driver pin receiving holes 2A, 2B, 2C of fixed outer cylinder 1.
Driver pins 6A, 6B, 6C, 6D housed in 2D and urged toward the rotating inner cylinder 3 by a spring 7
And accommodated in the code pin accommodation holes 4A and 4B of the rotary inner cylinder 3,
Cord pins 8A, 8B whose tips project into key insertion holes 5
And; driver pin receiving holes 2A, 2B, 2C of the fixed outer cylinder 1;
It moves between the 2D and the pin holes 4A and 4B of the rotating inner cylinder 3 and is removed from both the fixed outer cylinder 1 and the rotating inner cylinder 3.
A change pin 9A, 9B which is not provided; a selector which is accommodated in a radial selector pin accommodating hole 19 of the fixed outer cylinder 1 and is urged by a spring 20 so that an end thereof enters the key insertion hole 5 of the rotating inner cylinder 3. Pin 21
And the code pin 8 is inserted into the key insertion hole 5 of the rotary inner cylinder 3.
A, 8B, a plurality of cord recesses 11 to which the leading ends of the A and 8B engage and disengage are formed on the side surfaces, and retaining grooves 22 for engaging the selector pins 21 are provided at the edges of the portions corresponding to the selector pin housing holes 19, and A side groove 13 is formed along the direction.
The front end of the side groove 13 is formed to be bent in the lateral direction and
A plurality of first to X-th keys 10-1 to 10-X that are open in the retaining grooves 22 ; fitted into the side grooves 13 of the keys 10 to bend laterally.
The formed tip portion comprises a closing bar 12 that fills the retaining groove 22. The closing bar 12 is connected to the side groove 13 of the key 10 and the retaining groove 2.
By inserting the selector pin 21 back into the selector pin housing hole 19 of the fixed outer cylinder 1 by inserting it into the key insertion hole 5 in a state where the rotary inner cylinder 3 is
A code variable cylinder lock device in which the key 10 is removed from the key insertion hole 5 at a position rotated by 0 degrees, and the change pins 9A and 9B are moved corresponding to the code recess 11 of the key 10 .