JPS63277386A - Locking device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a locking device, and particularly to a dial-type locking device used for doors of safes, mailboxes, and the like.

``Prior art'' Conventionally, dial-type locking devices (so-called die% full locks) used on the doors of safes, mailboxes, etc. generally have a dial A full letter on the surface and protrude at appropriate locations on the inside. A knob rotating member having a shaped ivy; a screw fixedly attached to the knob rotating member in a central hole of the knob rotating member; and a notch formed at the rear end. an inner cylindrical body, which is rotatably attached to the inner cylindrical body, and has protrusions that engage with the tabs at appropriate locations on the front end, and a notch that matches the notch at the rear end. It consisted of an outer cylinder body and a latch mechanism having a latch plate that engages with and disengages from the notches of the outer cylinder body and the inner cylinder body to unlock and lock the lock.

However, in such a general combination lock,
After aligning the knob with the rotating member to the index number, for example the character "0", turn it clockwise or counterclockwise based on the password.
The notches of the outer cylinder and the inner cylinder coincide with the rear end of the latch plate of the latch d structure, and the latch plate is in an unlockable state.

However, this type of Dai A full lock is convenient because it allows you to easily hear the door of a mailbox, etc. by turning the knob to a certain On:I number and rotating it left and right.
If the above-mentioned PIN number were to be known by another person, there was a disadvantage that it would be the end of the story.

``Object of the present invention'' In view of the above-mentioned drawbacks of the conventional Dai-A full lock, the present invention provides a system that makes it possible to arbitrarily convert the PIN number when it becomes known or can be known to another person. Another object of the present invention is to provide a locking device that allows a desired identification number to be set with a simple operation when converting a personal identification number, and that can be manufactured at low cost with fewer constituent parts.

[Means for Achieving the Objects of the Invention] The locking device of the present invention comprises: an outer member; a knob rotating member rotatably fitted to the outer cylinder member and having a first engaging body; a second engaging body built into the outer cylinder member so as to be rotated by the rotation operation of the knob rotation member; a plurality of engaged bodies housed in the outer cylinder member so as to be separated from the respective engaged bodies;
It is characterized by comprising a latch holder that is removably attached to the outer cylindrical member and supports a latch plate that engages and disengages from the notches of these engaged bodies to unlock and lock.

Embodiment J of the present invention Hereinafter, the present invention will be explained in detail with reference to embodiments shown in the drawings.

In one embodiment of FIGS. 1 to 5, X is a dial-type locking device that is attached to the door of a mailbox, mailbox, etc.
In this embodiment, it is fixed to the open end of mailbox Y (j7ag).

That is, 1 is an outer cylindrical member that is fixed to the open end of the door a of the mailbox Y with a fixing device 2 such as a nut, and this outer cylindrical member 1
A fitting part 1a is formed at the front end, and an outer part 1 is formed at the rear end to pass through the mounting hole formed in the door a.
b is formed, and an attachment 7 flange portion 1C that abuts the front surface of the door a is integrally formed between the outer cylinder portion 1b and the fitting portion 1a. 3 is reached after being formed in the axial direction of the upper surface of the outer cylindrical portion 1b (based on FIG. 1).
This is a guide notch that fits into a latch holder or the like of a latch mechanism, and an elongated guide notch 4 that guides a latch plate of the latch mechanism is formed on the lower surface of the outer cylinder part 1b facing this guide notch 3. . 5 is an outer cylinder part 1 for fixing the latch holder of the latch mechanism to the outer cylinder member 1, as shown in FIG.
This is a mounting hole for the male screw 6 formed at the rear end of the portion b.

Reference numeral 7 denotes a knob rotation member which is rotatably fitted into the fitting portion 1a of the outer cylinder member 1, and locks and unlocks by restricting or releasing the movement of the latch plate of the latch mechanism by rotation operation. Part 7
On the surface 7a of, for example, 0 to 9 die A full characters are provided. Reference numeral 8 denotes a first engaging body fixed to a recess formed on the back surface of the knob rotating member 7 with a fixing device 9 such as a screw. A female screw 10 is formed to be screwed into the fixing member 9, and a protruding tab 11 is integrally provided at an appropriate location on the inner circumferential surface of the large diameter portion 8a, and a circular hole is provided on the end surface of the small diameter portion 8b. A plurality of engagement teeth 12 are formed at predetermined intervals in the circumferential direction. Note that this first engaging body 8 is connected to the second engaging member 8 from the back side of the knob rotating member 7.
As shown in the figures and FIG.
and is located within the fitting portion 1a of the outer cylinder member 1.

Reference numeral 13 denotes a cylindrical second engaging body which is housed in the outer cylinder member 1 so as to be rotated by the rotating operation of the knob rotating member 7, and this second engaging body 13 is similar to the first engaging body. an engaged protrusion 14 that fits onto the small diameter portion 8b of No. 8 and engages with the claw 11 on one end surface;
It consists of a small-diameter fitting portion 13a that is positioned at appropriate locations, and a large-diameter fitting portion 13b that has a plurality of engagement teeth 15 formed at predetermined intervals in the circumferential direction on the other end surface.

16.17 are the first and second knobs on the side of the knob rotation member mentioned above when rotating the knob rotation member 7 and converting to an arbitrary PIN number.
A plurality of engaged bodies are housed inside the outer cylindrical member 1 so as to be separated from the engaging bodies.

That is, the 16 has a plurality of engaged teeth 18 on one end surface that engage with the engagement teeth 2 of the first engagement body, and has a flange portion 1 on the rear end.
9 and a notch 20 formed at the rear end of the inner cylinder. In addition, 17 is rotatably fitted onto the first engaged body 16, has a plurality of engaged teeth 21 on one end surface that engages with the engagement flI115 of the second engaging body, and has a plurality of engaged teeth 21 on the rear end. A cylindrical second tube having a flange portion 22 and a notch portion 23 coinciding with the notch portion 20 formed at the rear end portion.
is the engaged object.

24 is removably attached to the outer cylindrical portion 1b of the outer cylindrical member 1, which has a latch plate 25 that unlocks and locks by engaging and disengaging from each notch 20.23 of the first and second engaged bodies 16.17. In the attached latch mechanism, the latch MA 24 is provided with a substantially cylindrical latch holder 26 as shown in FIG. Accordingly, when the latch plate 25 is based on FIG. 2 or 3, there is a mailbox Y at the bottom;
Stopper piece C fixedly protruding from the inner wall of IIA
The engaging portion 25a, which engages and disengages from the latch holder 26, is vertically movable and tiltably attached to the latch holder 26 by means of a pivot pin 2-7. The latch holder 26 also has a lug plate 2 attached thereto that corresponds to the aforementioned guide notch 3.4 of the outer cylinder member 1.
a guide notch 2Ga that guides 5 so that it can move up and down;
Coil spring 2B communicates with this guide notch 26a and biases the tilted latch plate 25 to its original vertical state when the latch plate 25 moves upward or rotates and tilts in one direction.
In addition, as shown in FIG. 5, a mounting hole for a male screw is formed at the front of the outer cylinder member 1 at a portion near the rear end of the peripheral body of the latch boulder 26. 5 and into which the screw 6 is screwed through the mounting hole 5, and a plurality of engagement recesses 30 and a plurality of engagement recesses 30 from the outer cylinder member 1 are formed at appropriate locations on the circumferential body. A knob 31 for pulling out the latch holder 26 is provided.

Reference numeral 32 denotes a connecting body that integrally connects the latch holder 26 and the plurality of engaged bodies 16 and 17 mentioned above to which the latch plate 25 engages and disengages, and in this embodiment, as shown in FIG. an annular portion 32a that fits into the circumference of the second engaged body 17 externally fitted on the engaged body 16 and comes into contact with the flange portion 22 thereof;
It consists of an elastic connecting arm 32c that extends rearward facing from the left and right sides of the annular portion 32a and has an engaging pawl 32b at its tip that engages with the four engaging portions 30 of the latch holder 26.

In the above configuration, firstly, FIG. Indicates that it is installed and locked. In this case, as shown in the figure, the first and second engaged bodies 1G, 17
each notch 20.23 and the latch plate 25 of the latch mechanism 24.
The latch plate 25 does not coincide with the upper end portion 25c, and therefore, even if ia is pulled through the knob rotation member 7, the latch plate 25 is restricted by the rear end surface of each engaged body 16, 17, and cannot be rotated and tilted. Can not. Next, as shown in FIG. 3, from the state shown in FIG. 2, the knob rotation member 7 is rotated left and right based on the password, and as a result, each notch 20.23 of the first and second engaged bodies 16.17 is It faces the upper end 25C of the latch plate 25, indicating that it is in the unlocked state.

In this case, when pa is pulled, the latch plate 25 that engages with the stopper piece C rotates and tilts until it is disengaged from the stopper piece, and its upper end 25c enters into each notch 20.23. Here, to explain the operation mode of 9 from the locked state to the unlocked state, first, the knob and rotation part @7 are aligned with the index part or indicator provided on the mounting flange part 10 of the outer cylinder member, and then the first password is pressed. Rotates in one direction based on the number. Then, the second engaging body 13 is rotated by the hook 11 of the first engaging body 8 via the engaged protrusion 14 which is engaged with the second engaging body 13, and at the same time, the engagement period between the engaging member 611s and the engaged tooth 21 is increased. The second engaged body 17 in the engagement rotates together in the same direction.

On the other hand, when the knob rotation member 17 is rotated in the opposite direction based on the next password, the first engaged body 16 engages with the engaging teeth 12 of the first engaging body 8 via the engaged teeth 18. rotates together with the knob rotating member 17, and as a result, as described above, the first
Then, the cutout portion 20.23 of the second engaged member 16.17 is opposed to the upper end of the lap plate 25 and is collapsed, resulting in an unlocked state.

However, if your PIN number is now publicly known to others and you wish to convert it to a new number of f'E's intention, first hold the latch holder 26 in the unlocked state. Loosen or remove the fixed male screw 6. Next, grasp the knob 31 of the latch holder 26 with your fingers and pull it to the rear as indicated by the arrow as shown in FIG. Then, the first and second engaged bodies 1G,
17 is integrated with the latch holder 26 via the connecting body 32, and is therefore separated from the first and second engaging bodies 8.13. Therefore, since the knob rotation member 7 is free, if the knob rotation member 7 is rotated, for example, to the right one or more times and then an arbitrary number is matched, the first engaging body 8 and the first engaged body 16 can be solved. You can see the position of the lock connection, and if you turn the knob rotation member 7 to the left and match it to an arbitrary number, the second engagement body 13
The unlocking connection position of the second engaged body 17 can be determined. After setting a new password in this way, push the latch holder 26 into the outer cylinder member 1 again,
Connect the outer cylinder part 1b of the outer cylinder member 1 and the latch holder 2 with the male screw 6.
6.

"Effects of the Present Invention" As is clear from the above description, the present invention has the following effects.

(1) Separate the plurality of engaging bodies housed in the outer cylinder member and the corresponding plurality of engaged bodies, and rotate the knob to set the password for the desired unit. can do.

Therefore, even if a hermit learns your password, there is no need to replace the locking device.

(2) In the case of an embodiment in which the latch holder and the plurality of engaged bodies 16, 17 are integrally provided, simply loosen the male screw 6 and pull the latch holder from the outer cylinder member 1 to the desired position. The engaged body 16.17 is grabbed like a clutch and separated from the first and second engaging bodies 8.13 on the rotating member 7 side.

Therefore, the knob rotation member 7 is immediately set in a free state, and a new password can be easily set as is.

(3) The number of constituent parts is small, so it can be assembled easily and manufactured at low cost.

[Brief explanation of drawings]

The first is a plan view of the door attached to the door showing an embodiment of the present invention, the second is an explanatory view showing the locked state in a large-scale sectional view taken along line I[-II in FIG. 1, and the third is is an explanatory diagram showing the unlocked state based on FIG. 2, FIG. 4 is an explanatory diagram showing the state in which the latch boulder of the latch mechanism is pulled backwards and the turning Oj member is free based on FIG. 3, and FIG. FIG. 1 is an exploded perspective view showing essential parts of the present invention. X...Lock device, a...Door, C...Stopper piece, 1...Outer cylinder member, 2.9...Fixing tool, 6...Male screw, 7...Knob turn moving parts,
8... first engaging body, 13... second engaging body,
14...Engaged projecting piece, 16.11...Engaged body
20.23... Notch, 24... Latch mechanism,
25... Latch plate, 25a... Engagement part,
26... Latch holder, 29... Female screw,
30... Engagement recess, 32... Connecting body,
32c...Connection arm. Patent applicant: Japan Denshi Lock Co., Ltd. Representative: Patent attorney: Hikaru Miura m8
1￥ 3 Figure

Claims (1)

[Scope of Claims] 1) An outer cylindrical member, a knob rotating member that is rotatably fitted into the outer cylindrical member and has a first engaging body, and a rotating knob that is rotated by a rotational operation of the knob rotating member. a second engaging body housed in the outer cylindrical member so as to be movable; and an outer cylindrical body so as to be separated from the plurality of engaging bodies when the knob rotating member is rotated to convert it into an arbitrary PIN number. A latch holder removably attached to the outer cylindrical member that pivotally supports a plurality of engaged bodies housed in the member and a latch plate that unlocks and locks by engaging with and disengaging from the notches of these engaged bodies. A locking device consisting of. 2) The locking device according to claim 1, wherein the latch holder and the plurality of engaged bodies to which the latch plate engages and disengages are integrally connected via a connecting body.