JPH0648063Y2 - Key retention structure - Google Patents

Key retention structure

Info

Publication number
JPH0648063Y2
JPH0648063Y2 JP1988094690U JP9469088U JPH0648063Y2 JP H0648063 Y2 JPH0648063 Y2 JP H0648063Y2 JP 1988094690 U JP1988094690 U JP 1988094690U JP 9469088 U JP9469088 U JP 9469088U JP H0648063 Y2 JPH0648063 Y2 JP H0648063Y2
Authority
JP
Japan
Prior art keywords
key
plate
head
notch
cylinder body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP1988094690U
Other languages
Japanese (ja)
Other versions
JPH0220657U (en
Inventor
直利 白柳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Denso Co Ltd
Original Assignee
Asahi Denso Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Denso Co Ltd filed Critical Asahi Denso Co Ltd
Priority to JP1988094690U priority Critical patent/JPH0648063Y2/en
Publication of JPH0220657U publication Critical patent/JPH0220657U/ja
Application granted granted Critical
Publication of JPH0648063Y2 publication Critical patent/JPH0648063Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】 〔産業上の利用分野〕 本考案はシリンダー錠におけるキーの抜けを防止する構
造に関するもので、車両用をはじめあらゆるシリンダー
錠に利用できるものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a structure for preventing a key from being pulled out in a cylinder lock, and can be applied to all cylinder locks including those for vehicles.

〔従来技術と問題点〕[Conventional technology and problems]

シリンダー錠においては、キー着脱の際キー山にてタン
ブラーが無理に押し込められるため両者の接触部が磨耗
する。特に車両用のシリンダー錠においては走行時の振
動も加わり、この磨耗は一層激しくなる。
In the cylinder lock, when the key is attached or detached, the tumbler is forcibly pushed in by the key crest, so that the contact parts of both are worn. In particular, in a cylinder lock for a vehicle, vibration is added during traveling, and this wear becomes more severe.

このため本来はキーの着脱ができないACCやONの位置に
おいても少し強い力を加えるとキーの着脱ができる可能
性がある。この現象は、タンブラーの数が少ない程大き
く、また、キー山が浅い程抜けやすさは大きくなる。
For this reason, there is a possibility that the key can be attached / detached even if a little strong force is applied even at the ACC or ON position where the key could not be attached / detached originally. This phenomenon increases as the number of tumblers decreases, and the ease of removal increases as the key ridges become shallower.

〔問題点を解決するための手段〕[Means for solving problems]

本考案は上記の問題点を解決するためのもので通常のタ
ンブラーの他に、このタンブラーと同様の働きをする別
のキー抜け防止用プレートを設け、キーを回動させた位
置においては、このプレートがキーに設けた切欠きに嵌
まり込むようにして、タンブラーやキー山の磨耗とは関
係なくキーがシリンダーのローターから抜けないように
したことを特徴とするものである。
The present invention is for solving the above-mentioned problems, and in addition to an ordinary tumbler, another key removal prevention plate that functions similarly to this tumbler is provided, and at the position where the key is rotated, It is characterized in that the plate fits into the notch provided in the key so that the key does not come out of the rotor of the cylinder regardless of wear of the tumbler and the key mountain.

即ち本考案は、ローター(1)の上部にタンブラーと同
形状のキー抜け防止用プレート(3)をバネ(4)を介
して設け、このプレートの頭部(5)を山形に形成する
と共にこの頭部と対応するシリンダーボディ(7)の内
周面に山形の突起(8)を設け、一方、キー(10)の根
元部には、キー回動可能な挿入位置において、前記キー
抜け防止用プレート(3)と対応する位置に切欠き(1
1)を設け、キー脱着可能な位置においては、前記キー
抜け防止用プレートの頭部(5)とシリンダーボディの
突起(8)を当接させ、キー回動時には前記当接が外れ
てキー抜け防止用プレートが、キーの切欠き(11)に嵌
まるようにしたキーの抜け止め構造である。
That is, according to the present invention, a key removal preventing plate (3) having the same shape as a tumbler is provided on the rotor (1) through a spring (4), and the head (5) of this plate is formed in a mountain shape. A mountain-shaped protrusion (8) is provided on the inner peripheral surface of the cylinder body (7) corresponding to the head, while the root of the key (10) is provided for preventing the key from coming off at a key pivotable insertion position. A notch (1
1) is provided, the head (5) of the key removal prevention plate and the protrusion (8) of the cylinder body are brought into contact with each other at a position where the key can be removed, and when the key is rotated, the contact is released and the key is removed. The prevention plate has a key retaining structure that is fitted into the key notch (11).

〔実施例〕〔Example〕

以下、本考案の一実施例を図面に基づき説明する。 An embodiment of the present invention will be described below with reference to the drawings.

〔構成〕〔Constitution〕

第1図、第2図は本考案の一実施例を示すもので、ロー
ター(1)の上部にタンブラー(2)と同形状のキー抜
け防止用プレート(3)をバネ(4)を介して摺動可能
に設けられており、このプレートの頭部(5)は円弧状
の山形に形成されており、その中心部にはキー挿入口
(6)が設けられている。そしてキー着脱可能な位置に
おける該プレート(3)の頭部と対応するシリンダーボ
ディ(7)の内周面には山形の突起(8)を設けられて
いる。
1 and 2 show an embodiment of the present invention, in which a key removal preventing plate (3) having the same shape as the tumbler (2) is mounted on the rotor (1) via a spring (4). It is slidably provided, and the head portion (5) of this plate is formed in an arcuate mountain shape, and a key insertion opening (6) is provided at the center thereof. A mountain-shaped projection (8) is provided on the inner peripheral surface of the cylinder body (7) corresponding to the head of the plate (3) at the position where the key can be attached and detached.

一方、キー(10)の根元部の前記プレートと対応する位
置には直角状の切欠き(11)が設けられている。この切
欠きは、キー山が図示の如く左右対称でキーの挿入方向
がフリーである場合には両側に設ければよいが、挿入方
向が一定の場合にはプレートの頭部と反対側にのみ設け
ておけばよい。
On the other hand, a right-angled cutout (11) is provided at a position corresponding to the plate at the base of the key (10). These notches may be provided on both sides when the key crests are symmetrical as shown and the key insertion direction is free, but when the insertion direction is constant, only on the side opposite to the plate head. It should be provided.

〔作用〕[Action]

第1図、第2図のOFFの状態ではキー抜け防止用プレー
ト(3)の頭部(5)はシリンダーボディの山形の突起
(8)と当接しており、プレート(3)はバネ(4)を
圧縮した状態で後方に位置し、挿入口(6)はローター
の中央に位置している。この位置にてキー(10)を挿入
し、回転させるとプレート(3)の頭部は第3図の如く
バネの作用によって山形突起(8)から外れ、プレート
は頭部の方向へ移動する。このプレートの移動により、
第4図に示す如くプレート挿入口(6)の後方がキーの
切欠き(11)に嵌まり込み、キーの抜けを防止する。
In the OFF state of FIGS. 1 and 2, the head (5) of the key removal prevention plate (3) is in contact with the chevron-shaped protrusion (8) of the cylinder body, and the plate (3) is spring (4). ) In the compressed state, the insertion opening (6) is located in the center of the rotor. When the key (10) is inserted and rotated at this position, the head of the plate (3) is disengaged from the chevron projection (8) by the action of the spring as shown in FIG. 3, and the plate moves toward the head. By moving this plate,
As shown in FIG. 4, the rear of the plate insertion opening (6) fits into the notch (11) of the key to prevent the key from coming off.

上記のプレート(3)とキーの切欠き(11)との係合は
何ら無理なく行われるため磨耗はなく、また、切欠き形
状としてもキーの軸線に対し直角状の凹溝であるため、
振動があっても容易に抜ける恐れはない。また、第3図
のON位置から第1図のOFF位置への回動に際してはプレ
ートの頭部が山形であり、一方の突起(8)も山形であ
るためスムーズにプレートが後退し、キーの引抜きが可
能な状態となる。
Since the plate (3) and the notch (11) of the key are engaged with each other without any friction, there is no wear. Also, the notch shape is a groove that is perpendicular to the axis of the key.
Even if there is vibration, it does not easily come off. Further, when turning from the ON position in FIG. 3 to the OFF position in FIG. 1, the head of the plate is mountain-shaped, and since one protrusion (8) is also mountain-shaped, the plate smoothly retracts and the key It can be pulled out.

〔考案の効果〕[Effect of device]

上述の如く本考案においては、キーによりローターを回
動させた際、キーの切欠きにキー抜け防止用プレートが
摩擦を生ずることなく直交状に嵌まり込み、キーの抜け
を完全に防止することができる。
As described above, according to the present invention, when the rotor is rotated by the key, the key removal preventing plate is fitted in the notch of the key in an orthogonal manner without causing friction, thereby completely preventing the key removal. You can

上記のキー抜け防止用プレートによるキーへの嵌合は、
キー着脱の繰り返し使用はもとより、継続的な振動によ
ってもその嵌合機能は何ら影響されることはないので、
自動二輪車をはじめ各種の車両用のシリンダー錠にも広
く利用できる効果がある。また、構造的にもタンブラー
と同様の部材を1組追加するのみでよいため製作も容易
で高価にならず、産業利用性の高いものである。
The above-mentioned key removal prevention plate fits into the key
The fitting function is not affected by the continuous vibration as well as the repeated use of attaching and detaching the key.
It has the effect of being widely applicable to cylinder locks for various vehicles including motorcycles. Further, structurally, since it is only necessary to add one set of members similar to the tumbler, the manufacturing is easy and the cost is not high, and the industrial applicability is high.

【図面の簡単な説明】[Brief description of drawings]

図面は本考案の一実施例を示すもので、第1図は第2図
のA−A断面図、第2図は基本的な一例の縦断側面図、
第3図はキー回動時における第1図と対応する平面図、
第4図は第3図の状態における部分縦断側面図である。 1……ローター 3……キー抜け防止用プレート 4……バネ 5……頭部 7……シリンダーボディ 8……突起 10……キー 11……切欠き
The drawings show an embodiment of the present invention. FIG. 1 is a sectional view taken along line AA of FIG. 2, and FIG. 2 is a vertical side view of a basic example.
FIG. 3 is a plan view corresponding to FIG. 1 when the key is rotated,
FIG. 4 is a partial vertical sectional side view in the state of FIG. 1 …… Rotor 3 …… Key removal prevention plate 4 …… Spring 5 …… Head 7 …… Cylinder body 8 …… Protrusion 10 …… Key 11 …… Notch

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】ローター(1)の上部にタンブラーと同形
状のキー抜け防止用プレート(3)をバネ(4)を介し
て設け、このプレートの頭部(5)を山形に形成すると
共にこの頭部と対応するシリンダーボディ(7)の内周
面に山形の突起(8)を設け、一方、キー(10)の根元
部には、キー回動可能な挿入位置において、前記キー抜
け防止用プレート(3)と対応する位置に切欠き(11)
を設け、キー脱着可能な位置においては、前記キー抜け
防止用プレートの頭部(5)とシリンダーボディの突起
(8)を当接させ、キー回動時には前記当接が外れてキ
ー抜け防止用プレートが、キーの切欠き(11)に嵌まる
ようにしたキーの抜け止め構造。
1. A key removal prevention plate (3) having the same shape as a tumbler is provided on an upper part of a rotor (1) through a spring (4), and a head (5) of this plate is formed in a chevron shape. A mountain-shaped protrusion (8) is provided on the inner peripheral surface of the cylinder body (7) corresponding to the head, while the root of the key (10) is provided for preventing the key from coming off at a key pivotable insertion position. Notch (11) at position corresponding to plate (3)
At the position where the key can be attached / detached, the head (5) of the key removal prevention plate is brought into contact with the protrusion (8) of the cylinder body, and the contact is disengaged when the key is rotated to prevent the key removal. A key retaining structure that allows the plate to fit into the key notch (11).
JP1988094690U 1988-07-18 1988-07-18 Key retention structure Expired - Lifetime JPH0648063Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988094690U JPH0648063Y2 (en) 1988-07-18 1988-07-18 Key retention structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988094690U JPH0648063Y2 (en) 1988-07-18 1988-07-18 Key retention structure

Publications (2)

Publication Number Publication Date
JPH0220657U JPH0220657U (en) 1990-02-09
JPH0648063Y2 true JPH0648063Y2 (en) 1994-12-07

Family

ID=31319257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988094690U Expired - Lifetime JPH0648063Y2 (en) 1988-07-18 1988-07-18 Key retention structure

Country Status (1)

Country Link
JP (1) JPH0648063Y2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH076409Y2 (en) * 1989-07-25 1995-02-15 株式会社本田ロック Cylinder lock
JP2595636Y2 (en) * 1992-10-30 1999-05-31 株式会社アルファ Multiple tumbler tablets
JP6826664B2 (en) * 2017-06-12 2021-02-03 本田技研工業株式会社 Saddle-type vehicle
JP7220470B2 (en) * 2019-06-14 2023-02-10 株式会社オプナス Locking/unlocking device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4923752U (en) * 1972-06-01 1974-02-28
JPS5240342Y2 (en) * 1973-06-19 1977-09-12

Also Published As

Publication number Publication date
JPH0220657U (en) 1990-02-09

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