JP3125461U - Pin cylinder lock detection jig - Google Patents

Abstract

Provided is a pin cylinder lock detection jig capable of reliably producing a key for a pin cylinder lock.
An inner cylinder is rotatably fitted to an outer cylinder, and a contact surface between an outer pin provided on the outer cylinder and an inner pin provided on the inner cylinder is made to coincide with a share line between the inner cylinder and the outer cylinder. In a pin cylinder lock that enables rotation of the inner cylinder, a dummy key 30 that can be inserted into a key insertion groove of the inner cylinder, and an arbitrary pair of outer pins and inner pins provided at an insertion end 31f of the dummy key 30 The detection probe 35 that rotates by an amount corresponding to the amount of protrusion of the inner pin into the key insertion groove and the non-insertion portion 32 of the dummy key 30 are connected to the detection probe 35 and correspond to the rotation amount of the detection probe 35. And a display unit 36 that rotates to display the rotation amount.
[Selection] Figure 3

Description

  The present invention relates to a pin cylinder lock detection jig used when creating a key.

Conventionally, a pin cylinder lock has been proposed (Patent Document 1).
JP 2002-121939 (Abstract)

An example of such a pin cylinder lock is shown in FIGS.
As shown in FIG. 1, the pin cylinder lock includes an outer cylinder 1 and an inner cylinder 2. The inner cylinder 2 is rotatably fitted to the outer cylinder 1. In the outer cylinder 1 and the inner cylinder 2, a pair of outer pins 10 and inner pins (tumblers) 11 are provided at a plurality of locations. The outer pin 10 and the inner pin 11 are provided in a row along the insertion direction X of the key 300. The sets of the outer pins 10 and the inner pins 11 are provided in a total of three rows, one on the left and one in addition to the outer cylinder 1 and the inner cylinder 2 provided in the upper part shown in FIGS.

The outer pin 10 and the inner pin 11 are slidably provided in the outer cylinder 1 and the inner cylinder 2. The lengths of the outer pins 10 and the key insertion grooves 20 are randomly formed to be unique to the lock.
The outer pin 10 is formed with a neck portion 10a having a small diameter portion 10b narrowed on the inner pin 11 side. The neck portion 10 a is provided at a plurality of locations according to the length of the outer pin 10.

In the outer pin 10, a head portion 10 c is formed at an end portion on the inner pin 11 side. A spring 12 is provided at the other end of the outer pin 10. The outer pin 10 is biased toward the inner pin 11 by the spring 12.
An upper portion 11 c that contacts the head portion 10 c of the inner pin 11 is formed at the end of the inner pin 11 on the outer pin 10 side.

In order to unlock the pin cylinder lock, as shown by the broken line in FIG. 2, the key 300 that matches the pin cylinder lock is inserted into the key insertion groove 20 of the inner cylinder 2.
When the tip 11a of the inner pin 11 is fitted into the engagement hole 301 formed in the key 300, each inner pin 11 pushes up the outer cylinder 1 respectively. Due to the inner pin 11, the boundary (share line) L between the outer cylinder 1 and the inner cylinder 2 and the contact surface S between the upper portion 11 c of the outer cylinder 1 and the head 10 c of the outer pin 10 coincide with each other. Can rotate with respect to the outer cylinder 1, and the pin cylinder lock can be unlocked.

  By the way, when the key is lost, it is necessary to make a joint key based on the pin cylinder lock. However, since the pin cylinder is configured as described above, it is extremely difficult to produce a key.

  Accordingly, an object of the present invention is to provide a pin cylinder lock detection jig capable of reliably producing a key lock for a pin cylinder lock.

An embodiment of the present invention will be described below.
As described above, the outer pin 10 and the inner pin 11 are provided on the upper and left and right sides of the outer cylinder 1 and the inner cylinder 2, respectively. Although there are three types for the left side and the left side, for simplification of description, in the following description, an upper detection jig used for detection of the upper portion of the key insertion groove 20 will be described as an example.

Configuration of the detection jig 3:
As shown in FIGS. 3 and 4, the detection jig 3 includes a dummy key 30 that can be inserted into the key insertion groove 20 (FIG. 1), a linear member 34, and a display needle 36.

Dummy key 30:
As shown in FIG. 3, the dummy key 30 includes an insertion portion 31 inserted into the key insertion groove 20 (FIG. 1) and a non-insertion portion 32. The dummy key 30 is formed with a receiving groove 33 extending from the non-insertion portion 32 to the insertion portion 31 along the insertion direction X of the dummy key 30.

Linear member 34:
The linear member 34 is provided along the accommodation groove 33 of the dummy key 30. The linear member 34 is rotatably provided in the accommodation groove 33. The linear member 34 is attached to the dummy key 30 via a washer 39 by a screw 37 that is screwed into the non-insertion portion 32 of the dummy key 30.

  A hook (an example of a detection probe) 35 is formed on the insertion end 33 f of the linear member 34 in the insertion direction X. The hook 35 is formed by bending the distal end portion of the linear member 34 substantially at a right angle. The insertion end 31f of the dummy key 30 is formed with a hook hole 31h in which the hook 35 shown in FIGS.

A display needle (an example of a display unit) 36 is formed on the other end (non-insertion side) of the linear member 34 shown in FIG. The indicator needle 36 is formed in a substantially vertical direction with respect to the longitudinal direction X of the linear member 34. The indicator needle 36 and the hook 35 are formed, for example, by bending a single linear member 34. Therefore, the indicator needle 36 rotates according to the amount of rotation of the hook 35 to indicate the amount of rotation. The display unit is configured.
As shown in FIG. 4, detection position setting scales 38 corresponding to the pitch of the inner pins 11 are formed on the upper surface and the lower surface of the insertion portion 31 of the dummy key 30.

Detection method:
First, the insertion portion 31 of the dummy key 30 is inserted into the key insertion groove 20 and the inner pin 11 located at the innermost portion of the key insertion groove 20 is detected. By the insertion, as shown in FIG. 5, the hook 35 is positioned below the tip 11 a of the inner pin 11.

Next, when the non-insertion portion 32 of FIG. 3 is rotated to rotate the main body of the dummy key 30 shown in FIG. 6, the inner cylinder 2 is slightly rotated with respect to the outer cylinder 1, and the inner pin 2 is rotated by the outer pin 10. The movement stops.
When the display needle 36 of FIG. 3 is rotated after the stop, the hook 35 rotates about the linear member 34 toward the tip 11a as shown in FIG. It is pushed up in the cylinder 1 direction. The outer pin 10 is pushed up by the inner pin 11 and the head 10 c of the outer pin 10 is engaged with the share line L of the outer cylinder 1.

  As described above, the display needle 36 rotates according to the rotation amount of the hook 35. Therefore, the amount of movement of the inner pin 11 can be known by looking at the angle of the display needle 36 with respect to the non-insertion portion 32.

Here, the depth of the engagement hole 301 of the key 300 in FIG. 2 is set to several types, for example, due to factors such as processing accuracy, deterioration with time, and wear. Therefore, by measuring the correspondence relationship between the angle indicated by the display needle 36 and the depth of the engagement hole 301 in advance, the depth of the engagement hole 301 corresponding to the angle is determined from the angle indicated by the display needle 36. I can know.
The operator notes the depth of the engagement hole 301 corresponding to the angle of the display needle 36 as the depth of the innermost portion.

Next, the non-insertion portion 32 is pulled back in the direction opposite to the insertion direction X by one scale of the detection position setting scale 38. As described above, since the detection position setting scale 38 is formed so as to correspond to the pitch of the inner pins 11, the hook 35 is positioned below the tip 11a of the second inner pin 11 from the back by such pulling back. .
The operator turns the hook 35 and looks at the angle of the display needle 36, and notes the depth of the engagement hole 301 corresponding to the angle indicated by the display needle 36 as the second depth from the back.
Thereafter, according to the detection position setting scale 38, the depth of the engagement hole 301 is sequentially measured while the non-insertion portion 32 is pulled back.

Next, using the detection jig 3 for the left side and the detection jig 3 for the right side shown in FIG. 8, the depth of the left engagement hole 301 and the depth of the right engagement hole 301 are set to the above-described upper side. Measure in the same way as above and make a note of each depth. Some types of pin cylinder locks have a small number of outer pins 10 and inner pins 11. In such a case, according to the detection position setting scale 38, the detection work is started from the position pulled back.
After the measurement of the depths of all the engagement holes 301 is completed, a hole having the depth is processed for the raw key (blank key) based on the depth of the engagement holes 301 written in the memo. Thus, a key is produced.

  As described above, the detection jig 3 can be used to detect the depth of the engagement hole for processing the raw key, so that it is possible to reliably produce the key without depending on the operator's intuition and skill level. It can be carried out.

  Some pin cylinder locks have a small number of outer pins 10 and inner pins 11. In such a case, according to the detection position setting scale 38, the detection work is performed from the position where the insertion portion 31 is returned to the front.

  The pin cylinder lock detecting jig of the present invention can be used for producing a key for the pin cylinder lock.

It is a schematic longitudinal cross-sectional view which shows an example of a pin cylinder lock. It is a schematic longitudinal cross-sectional view which shows the unlocking state of the pin cylinder lock. It is a schematic perspective view of the detection jig of the upper pin cylinder lock which shows one Example of this invention. It is a schematic perspective view of the detection jig. It is a schematic cross-sectional view which shows the detection method by the detection jig. It is a schematic cross-sectional view which shows the detection method by the detection jig. It is a schematic cross-sectional view which shows the detection method by the detection jig. It is a schematic perspective view which shows the detection jig | tool of the pin cylinder lock for lefts.

Explanation of symbols

1: Outer cylinder 2: Inner cylinder 3: Pin cylinder lock detection jig 10: Outer pin 11: Inner pin 20: Key insertion groove 30: Dummy key 32: Non-insertion portion 33: Housing groove 33f: Insertion end 34: Linear Member 35: hook (detection probe)
36: Indicator hand (display part)
L: Share line S: Contact surface

Claims (2)

The inner cylinder is rotatably fitted to the outer cylinder, and the contact surface between the outer pin provided on the outer cylinder and the inner pin provided on the inner cylinder is matched with the share line between the inner cylinder and the outer cylinder by a key. In the pin cylinder lock that can be rotated,
A dummy key insertable into the key insertion groove of the inner cylinder;
A detection probe that is provided at the insertion end of the dummy key and rotates by an amount corresponding to a protruding amount of the inner pin and the inner pin into the key insertion groove of the inner pin;
A pin cylinder lock detection jig provided with a non-insertion portion of the dummy key, and a display portion connected to the detection probe and displaying the rotation amount by rotating according to the rotation amount of the detection probe. The inner cylinder is rotatably fitted to the outer cylinder, and the contact surface between the outer pin provided on the outer cylinder and the inner pin provided on the inner cylinder is matched with the share line between the inner cylinder and the outer cylinder by a key. In the pin cylinder lock that can be rotated,
A dummy key insertable into the key insertion groove of the inner cylinder;
A receiving groove extending from the non-insertion portion of the dummy key to the insertion end along the insertion direction of the dummy key;
A linear member extending along the receiving groove;
A hook provided at an insertion end of the linear member, the inner pin rotating according to a protruding amount protruding toward the key insertion groove;
A pin cylinder lock detection jig provided with a display needle provided on the non-insertion side of the linear member and rotating by an amount corresponding to the amount of rotation of the hook.

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