JPS6017481Y2 - Pin cylinder lock with cons mechanism - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pin cylinder lock with a cons mechanism.

An example of a construction with a conski mechanism that has been used in this type of construction is Special Publication No. 42-27393 (the former).
, Japanese Patent Publication No. 46-3415 (the latter), proposals have been made to use a "kill pin" to stop the operation of certain tumblers and drivers in consoles.

By the way, the former proposal is to take out the killing pin along with the key at the same time as releasing the cons state, but in order to fit the killing pin into the recess of the key and take it out, it is necessary to position the rotational position of the rotary cylinder, This is complicated in that the shapes of the key and the killing pin must correspond.

In addition, the latter proposal simultaneously releases the cons state and at the time of cons.
The killing pin, which had been housed in the groove of the outer cylinder, was moved to the back side of the rotating cylinder and was buried inside the rotating cylinder.In order to achieve this purpose, this invention was designed as follows: It has a complex structure.

In other words, the shear line should be set separately for when cons is released and after cons is released, and a limit should be placed on the rotation angle of the rotary cylinder during cons, and when the cons is released, the kill pin should be set outside of the range of the limited angle. Not only does it have a complicated structure, such as having to fall into the groove of the rotary tube, but it also makes locking and unlocking operations difficult when the device is turned on.

Furthermore, there is a problem in that the number of incorrect keys is usually small in proportion to the total number of tumblers.

The present invention aims to solve the problems of the conventional cons mechanism of this type as described above.

In other words, the present invention avoids taking out the killing pin to the outside when the cons is released, and instead embeds the killing pin in the rotary cylinder.Moreover, even when cons is released, the rotation angle of the rotary cylinder is not limited, and the cons can be released without limiting the rotation angle of the rotary cylinder. At the time, the killing pin can be smoothly transferred into the groove of the rotating cylinder, and during cons,
This is designed to ensure that the number of key differences is as large as possible even after the cons is released.

(Description of Examples) Examples of the present invention shown in the drawings will be described below.

(Explanation of the structure) In the drawings, 1 is an outer cylinder, 2 is a rotating body shown in Figures 3 to 5, and 3 is a killing pin that kills the driver 8 while it is being operated. It is accommodated in the groove 4 of the body 2 as shown in FIGS. 1 and 2.

5 is a groove in the outer cylinder 1 in which the kill pin 3 is temporarily accommodated when the cons state is canceled with the release key 16; 6 is a groove in the rotating body 2 in which the kill pin 3 is accommodated after the con is released; 7a; 7b
are the respective tumblers in the non-operating range A and the operating range B in the cons, and are accommodated in the tumbler hole 11 of the rotating body 2.

Reference numerals 8a and 8b are drivers accommodated in a driver hole 12 of the outer cylinder 1 and pressed by a spring 9, and 8a is a driver in a non-operating range A in the cons, while the driver 8b is also a driver in an operating range B.

10 is a spring holding plate, and 10a is a cover plate. 11 is a tumbler hole, 12 is a screwdriver hole, 13 is a keyhole, 14, 14
．． ．． 14° is the cons key, 15 is the regular duplicate key, (Fig. 8), (Fig. 12) 16 is the cons release key (Fig. 9), 1
6' is the notch, and 17 is the key drive device.

As shown in FIGS. 1 and 2, the killing pin 3 is accommodated in the groove 4 of the rotating body 2 before the key is inserted into the console.
Hold the screwdriver 8 in the non-operating range A in the console at the shear line and ``kill'' it.

Therefore, as shown in FIG. 6, when the con key 14 is inserted, the tumbler 7b in the operating range B in the con can be activated to lock and unlock the lock.

The length of the con key 14 is 1 as shown in FIG.
The length may be only the working range B in the cons, as in 41, or it may be as long as the non-working range A, as in 14°.

When the con key 14 reaches the non-operating range A as shown at 142, the con key 14 can also push out the indoor lock/unlock device 17 at the rear of the cylinder lock (to the right in FIG. 6).

Further, in this case, both keys 141 and 14□ can be used together.

Note that even if a normal duplicate key 15 is inserted into the console, the key tip or notched convex portion 15a of the duplicate key 15 collides with one of the tumblers 7a in the non-operating range A, as shown in FIG. cannot be inserted into.

This is because when the convex portion 15a collides with the tumbler 7a, the killing pin 3 is pressed against the bottom of the groove 5, and the tumbler 7a
This is because it will hit Kill Pin 3 and will not be able to move towards the shear line.

(Explanation of the action of releasing the cons state) When the release key 16 is inserted as shown in Figs. 9 and 10,
Part 1 of the key 16 to release the tumbler 7a in the non-operating range A
6a is pushed up, and the killing pin 3 is moved from the groove 4 of the rotary cylinder 2 to the outer cylinder 1.
The process moves to groove 5.

(FIG. 10) In other words, the release key 16 positions the tumbler 7a at the shear line.

After the kill pin 3 has moved to the groove 5 of the outer cylinder 1, when the rotary cylinder 2 is rotated as shown in FIG. At the same time, the killing pin 3 is dropped into the groove 6 of the rotary cylinder 2.

In this way, the killing pin 3 is buried in the rotary cylinder 2, and the tumbler 7a in the non-operating range A as shown in FIGS. 12 and 13.
Bring everything from the “°killed” state to the operating state.

Therefore, by inserting a normal duplicate key 15, the lock can be locked and unlocked as a normally used cylinder lock.

In this normal use condition, even if the conkey 14 is inserted by mistake as shown in Figure 14, the driver 8a in the non-operating range A... or the shear line will be crossed, so the lock will be unlocked. I can't do that.

(Function and effect of the present invention) ■ The present invention stores the killing pin 3 in the groove 4 of the rotary cylinder 2 during cons, and at the time of releasing the con, the kill pin 3 is temporarily transferred to the full 5th position of the outer cylinder 1. After that, rotate cylinder 2
A mechanism was adopted to return the load to 6.

Therefore, since the killing pin 3 can rotate together with the rotating barrel 2 during cons, there is no need to limit the rotation angle of the rotating barrel 2 during cons, and the rotating barrel 2 may be rotated freely.

■ The transition of the killing pin 3 from groove 445 to groove 6 is smooth.

This is because at the time of transition from groove 4 to groove 5, the release key 16
The transition from the waist groove 5 to the groove 6, which is carried out at the same time as the insertion into the keyhole, is particularly important for the positioning of the rotary cylinder 2, because if the positions of the grooves 5 and 6 match, the killing pin 3 will automatically fall. This is because there is no need.

■ The number of incorrect keys can be taken in proportion to the total number of tumblers that operate both during cons and normal times, so the number of incorrect keys can be secured effectively.

[Brief explanation of drawings]

Figure 1: A longitudinal cross-sectional view of the two-invented cylinder lock before insertion;
Figure 2: Figure 1 ■ - ■ Cross-sectional view, Figure 3 ■: Plane view of the rotating body 2, Figure 3 ■: Also a perspective view, Figure 4: Figure 3 I
V-IV arrow view, Figure 5: Figure 4 ■-■ Cross-sectional view, Figure 6: Longitudinal cross-sectional view when inserting Konski-14, Figure 7: Figure 6 ■
-■ Cross-sectional view, Figure 8: Vertical cross-sectional view when a normal duplex key 15 is inserted into the cons, Figure 9: Vertical cross-sectional view when the release key 16 is inserted to release the con, Figure 10: Figure 9
-X sectional view, Fig. 11: A corresponding view of the XX cross section in Fig. 9 when the rotary barrel 2 is rotated, Fig. 12: A vertical sectional view when a normal duplicate key 15 is inserted, Fig. 13 Figure: 12th
Figure xm-xm sectional view, Figure 14: Normal condition, Consky 1
4 is a vertical cross-sectional view when inserted. 1... Outer tube, 2... Rotating tube, 3...
...Killing pin, 4...First groove of rotating body 2,
5... Groove of outer cylinder 1, 6... Second groove of rotating body 2, 7... Tumbler 18...
Driver 9...Spring, 10...
...Spring holding plate 10a...Lid plate, 11...
...One hole for tumbler, 12...One hole for screwdriver, 1
3...Keyhole, 14...Con key, 1
5...Authentic duplicate key, 16...Release key, 16a...Top part, 17...Indoor lock/unlock device, A...・Non-operating range during cons,
B... Operating range.

Claims (1)

[Claims for Utility Model Registration] In a pin cylinder lock equipped with a cons mechanism in which the killing pin 3 is inserted into the cylinder to kill the operation of the driver 8a in the cons non-operating range A, A first groove 4 for accommodating the killing pin 3 and a second groove 6 for burying and accommodating the killing pin 3 after release of the cons. The first groove 4 of the rotary cylinder 2 and the groove 5 of the outer cylinder 1 are provided with a groove 5 located above the first groove 4 of the rotary cylinder 2 and the groove 5 of the outer cylinder 1. The driver holes 12 extend in series, and the second groove 6 of the rotary cylinder 2 is connected to the first hole 12.
A pin cylinder lock equipped with a cons mechanism, characterized in that the cons mechanism extends parallel to the groove 4 of the pin cylinder lock.