JPH108796A - Drill breakage prevention lock - Google Patents

Drill breakage prevention lock

Info

Publication number
JPH108796A
JPH108796A JP18012996A JP18012996A JPH108796A JP H108796 A JPH108796 A JP H108796A JP 18012996 A JP18012996 A JP 18012996A JP 18012996 A JP18012996 A JP 18012996A JP H108796 A JPH108796 A JP H108796A
Authority
JP
Japan
Prior art keywords
rotor
guard member
diameter shaft
small diameter
key hole
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.)
Pending
Application number
JP18012996A
Other languages
Japanese (ja)
Inventor
Haruo Mochida
晴雄 持田
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.)
Takigen Manufacturing Co Ltd
Original Assignee
Takigen Manufacturing 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 Takigen Manufacturing Co Ltd filed Critical Takigen Manufacturing Co Ltd
Priority to JP18012996A priority Critical patent/JPH108796A/en
Publication of JPH108796A publication Critical patent/JPH108796A/en
Pending legal-status Critical Current

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  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

PROBLEM TO BE SOLVED: To surely block drill breakage by key hole bottom part boring by rotatably housing a rotor in a fixed case, and housing a high hardness guard member in the small diameter shaft part of the rotor adjacent to the bottom part of a key hole. SOLUTION: A rotor 2 is rotatably housed in a fixed case 1, and unrotatably restrained by a tumbler lock mechanism 3. A high harness guard member 4 is housed in the small diameter shaft part 15 of the rotor 2 adjacent to the bottom part of a key hole 8. When a thief inserts a drill bit 5 in the key hole 8 of the rotor 2 and tries to bore in the small diameter shaft part 15, the drill bit 5 piercing from the bottom part of the key hole is struck on the high hardness guard member 4, and weakness by boring of the small diameter shaft part 15 of the rotor 2 can be blocked. In addition, the guard member 4 is formed into a ball or a pin, which can be rotatably housed. In this case, the guard member 4 is rotated to reduce the rotation force of the drill bit 5, and boring prevention action can be improved.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明が属する技術分野】 本発明はドリル穿孔により
タンブラ錠機構が破壊されて錠機能を喪失することがな
い、ドリル破壊防止型錠装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock device for preventing breakage of a drill in which a tumbler lock mechanism is not destroyed by drilling and a lock function is not lost.

【0002】[0002]

【従来の技術】 固定ケースにロータを回転可能に収容
し、タンブラ錠機構でロータを回転不能に拘束する錠装
置においては、ドリル工具でタンブラ錠機構の収容部分
を穿孔して錠機能を破壊する代わりに、ロータの鍵孔に
ドリルビットを深く差し込んで鍵孔底部に穿孔し、ドリ
ルビットの差し込み位置や角度を少しづつ変更しながら
穿孔作業を何度も繰り返すことによって、鍵孔底部に近
接した小径軸部に蜂の巣状や空洞状の脆弱部を形成し、
その後、ロータに大きな引き抜き力や捩じり力を加え
て、ロータを該脆弱部で破断させる方法が行われて来て
いる。しかしながら、このような鍵孔底部の穿孔による
ドリル破壊に対しては、有効な防護策はまだ提案されて
いない。
2. Description of the Related Art In a lock device in which a rotor is rotatably accommodated in a fixed case and the rotor is non-rotatably restrained by a tumbler lock mechanism, a lock portion is destroyed by piercing an accommodation portion of the tumbler lock mechanism with a drill tool. Instead, the drill bit was inserted deeply into the keyhole of the rotor and drilled at the bottom of the keyhole, and the drilling operation was repeated a number of times while gradually changing the insertion position and angle of the drill bit, so that the drill bit was close to the keyhole bottom. Forming a honeycomb or hollow fragile part on the small diameter shaft part,
Thereafter, a method of applying a large pulling force or torsional force to the rotor to break the rotor at the fragile portion has been performed. However, effective protective measures have not yet been proposed for the breaking of the drill due to the drilling of the bottom of the keyhole.

【0003】[0003]

【発明が解決しようとする課題】 したがって本発明の
目的は、鍵孔底部穿孔によるドリル破壊を的確に阻止で
きる錠装置を提供することである。
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a lock device that can appropriately prevent a drill from being broken by a hole at the bottom of a keyhole.

【0004】[0004]

【課題を解決するための手段】 本発明では、固定ケー
ス1にロータ2を回転可能に収容し、タンブラ錠機構3
によってロータ2を回転不能に拘束する錠装置におい
て、高硬度のガード部材4を鍵孔8の底部に近接したロ
ータ2の小径軸部15に収容する。ガード部材4はボー
ルまたはピン状に形成し、回転可能に収容することもで
きる。
According to the present invention, a rotor 2 is rotatably accommodated in a fixed case 1 and a tumbler lock mechanism 3 is provided.
In this lock device, the high-hardness guard member 4 is housed in the small-diameter shaft portion 15 of the rotor 2 close to the bottom of the keyhole 8. The guard member 4 may be formed in a ball or pin shape and rotatably accommodated.

【0005】盗犯者がロータ2の鍵孔8にドリルビット
5を挿入し、小径軸部15に穿孔しようとするとき、図
2に示したように鍵孔底部より突き進んで来たドリルビ
ット5は、高硬度のガード部材4に突き当たることによ
って、それ以上の進行を妨げられ、ロータ2の小径軸部
15の穿孔による脆弱化が阻止される。
When a burglar inserts the drill bit 5 into the keyhole 8 of the rotor 2 and tries to pierce the small diameter shaft portion 15, as shown in FIG. By hitting the high-hardness guard member 4, further progress is hindered, and weakening due to perforation of the small-diameter shaft portion 15 of the rotor 2 is prevented.

【0006】ガード部材4をボールまたはピン状に形成
し、回転可能に収容した場合には、ドリルビット5が突
き当たったとき、ガード部材4が回転することによっ
て、ドリルビット5の回転力がそがれることになり、穿
孔阻止作用が向上する。
When the guard member 4 is formed in a ball or pin shape and is rotatably accommodated, when the drill bit 5 abuts, the rotation of the guard member 4 causes the rotational force of the drill bit 5 to be released. And the effect of preventing perforation is improved.

【0007】[0007]

【発明の実施の形態】 図1から図4に示した実施例で
は、ガード部材4は硬度が十分に高い鋼材やセラミック
ス材で球状に作製されている。ガード部材4の収容室6
は小判形断面の小径軸部15の平坦側面から盲孔状に形
成され、ガード部材4を収容した後、栓体7によって閉
塞されている。栓体7の内端部には半球面状座面7aが
設けられている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment shown in FIGS. 1 to 4, the guard member 4 is made of a steel or ceramic material having sufficiently high hardness in a spherical shape. Storage room 6 for guard member 4
Is formed in the shape of a blind hole from the flat side surface of the small-diameter shaft portion 15 having an oval cross section. A hemispherical seat surface 7a is provided at the inner end of the plug 7.

【0008】タンブラ錠機構3としては公知のピンタン
ブラ錠機構が使用され、固定ケース1の半径方向のドラ
イバーピン孔3aに収容されたドライバーピン3bは、
ロータ2の半径方向のタンブラピン孔3cに収容された
タンブラピン3dに当接しており、圧縮コイルバネ3e
によってロータ2の鍵孔8の方向に移動付勢されてい
る。鍵孔8に正規に鍵9が挿入されたとき、タンブラー
ピン3dとドライバーピン3bの当接点がロータ2の外
周面に移動するため、固定ケース1に対するロータ2の
拘束が解除され、ロータ2は回転可能となる。タンブラ
錠機構としてはディスクタンブラ錠機構などの他の錠機
構も任意に選択使用することができる。
A well-known pin tumbler lock mechanism is used as the tumbler lock mechanism 3, and the driver pin 3 b accommodated in the radial driver pin hole 3 a of the fixed case 1 is
The compression coil spring 3e is in contact with the tumbler pin 3d housed in the tumbler pin hole 3c in the radial direction of the rotor 2.
Accordingly, the rotor 2 is urged to move in the direction of the keyhole 8 of the rotor 2. When the key 9 is properly inserted into the keyhole 8, the contact between the tumbler pin 3d and the driver pin 3b moves to the outer peripheral surface of the rotor 2, so that the constraint of the rotor 2 on the fixed case 1 is released, and the rotor 2 It becomes rotatable. As the tumbler lock mechanism, another lock mechanism such as a disk tumbler lock mechanism can be arbitrarily selected and used.

【0009】ロータ2の前端鍔部10は固定本体1の前
面部の抜け止め肩面11に当接し、ロータ2の環状受溝
12に嵌め込まれたC形止め輪13は固定本体1の後端
面14に当接している。ロータ2の小径軸部15には座
金16と座金17を介して回転角度規制板18と止め金
板19が嵌められ、ナット20によってロータ2に固着
されている。固定本体1の前端部にはガードリング21
が嵌められ、固定本体1はガードリング21とナット2
2によって扉パネル23に締付け固着されている。
The front end flange 10 of the rotor 2 abuts against a retaining shoulder surface 11 on the front surface of the fixed body 1, and the C-shaped retaining ring 13 fitted in the annular receiving groove 12 of the rotor 2 is a rear end face of the fixed body 1. 14 abuts. A rotation angle regulating plate 18 and a stopper plate 19 are fitted to the small diameter shaft portion 15 of the rotor 2 via washers 16 and 17, and are fixed to the rotor 2 by nuts 20. A guard ring 21 is provided at the front end of the fixed body 1.
The fixed body 1 is composed of a guard ring 21 and a nut 2
2, it is fastened and fixed to the door panel 23.

【0010】図5に示した実施例では、ガード部材4は
硬度が十分に高い鋼材やセラミックス材でピン状に作製
され、ロータ2の半径方向に設けた収容室6に回転可能
に収容されている。なお、ピン状のガード部材はロータ
の軸方向に配置することもでき、その場合には球状のガ
ード部材と同様にピン状のガード部材はドリルビットと
一体に連れ合い回転する。また、タンブラ錠機構3の収
容部分のドリル破壊を阻止するガード手段を本発明の付
加して使用することもできる。
In the embodiment shown in FIG. 5, the guard member 4 is made of a steel or ceramic material having sufficiently high hardness in the form of a pin, and is rotatably housed in a housing 6 provided in the radial direction of the rotor 2. I have. The pin-shaped guard member can be arranged in the axial direction of the rotor. In this case, like the spherical guard member, the pin-shaped guard member rotates together with the drill bit. In addition, a guard means for preventing the breakage of the drill of the accommodation portion of the tumbler lock mechanism 3 can be additionally used in the present invention.

【0011】[0011]

【発明の効果】 以上のように本発明では、高硬度のガ
ード部材4をロータ2の鍵孔8の底部に近接した小径軸
部15に収容したので、鍵孔8から挿入したドリルビッ
ト5による小径軸部15の穿孔と脆弱化が的確に阻止さ
れ、小径軸部15の破断による錠機能の喪失がない、防
盗性に優れた錠装置が得られる。
As described above, according to the present invention, the guard member 4 having high hardness is accommodated in the small-diameter shaft portion 15 close to the bottom of the keyhole 8 of the rotor 2, so that the drill bit 5 inserted from the keyhole 8 is used. A perforation and weakening of the small diameter shaft portion 15 are accurately prevented, and a lock device excellent in anti-theft property without loss of the lock function due to breakage of the small diameter shaft portion 15 can be obtained.

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

【図1】 本発明の一実施例に係るドリル破壊防止型錠
装置の鍵抜き取り時の正面図である。
FIG. 1 is a front view when a key is removed from a lock device for preventing breakage of a drill according to an embodiment of the present invention.

【図2】 図1のA−A線断面図である。FIG. 2 is a sectional view taken along line AA of FIG.

【図3】 該錠装置の鍵挿入時の断面図である。FIG. 3 is a cross-sectional view of the lock device when a key is inserted.

【図4】 図2のB−B線断面図である。FIG. 4 is a sectional view taken along line BB of FIG. 2;

【図5】 本発明の別の実施例におけるロータの小径軸
部の断面図である。
FIG. 5 is a sectional view of a small-diameter shaft portion of a rotor according to another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 固定本体 2 ロータ 3 タンブラ錠機構 4 ガード部材 5 ドリルビット 6 ガード部材収容室 7 栓体 8 鍵孔 9 鍵 10 ロータの前端鍔部 11 固定ケースの抜け止め肩面 12 ロータの環状受溝 13 止め輪 14 固定ケースの後端面 15 ロータの小径軸部 16 座金 17 座金 18 回転角度規制板 19 止め金板 20 ナット 21 ガードリング 22 ナット 23 扉パネル 24 バネ押え板 DESCRIPTION OF SYMBOLS 1 Fixed main body 2 Rotor 3 Tumble lock mechanism 4 Guard member 5 Drill bit 6 Guard member storage chamber 7 Plug 8 Key hole 9 Key 10 Front end flange portion of rotor 11 Retaining shoulder surface of fixed case 12 Rotary receiving groove of rotor 13 Stop Wheel 14 Rear end face of fixed case 15 Rotor small diameter shaft part 16 Washer 17 Washer 18 Rotation angle regulating plate 19 Clasp plate 20 Nut 21 Guard ring 22 Nut 23 Door panel 24 Spring holding plate

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 固定ケース1にロータ2を回転可能に収
容し、タンブラ錠機構3によってロータ2を回転不能に
拘束する錠装置において、高硬度のガード部材4を鍵孔
8の底部に近接したロータ2の小径軸部15に収容した
ことを特徴とするドリル破壊防止型錠装置。
In a lock device in which a rotor is rotatably accommodated in a fixed case and a rotor is locked by a tumbler lock mechanism, a high-hardness guard member is disposed near a bottom of a keyhole. A drill breakage prevention type lock device, wherein the lock device is accommodated in a small diameter shaft portion 15 of a rotor 2.
【請求項2】 ガード部材4をボールまたはピンとして
回転可能に収容したことを特徴とするドリル破壊防止型
錠装置。
2. A lock device for preventing breakage of a drill, wherein the guard member 4 is rotatably housed as a ball or a pin.
JP18012996A 1996-06-20 1996-06-20 Drill breakage prevention lock Pending JPH108796A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18012996A JPH108796A (en) 1996-06-20 1996-06-20 Drill breakage prevention lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18012996A JPH108796A (en) 1996-06-20 1996-06-20 Drill breakage prevention lock

Publications (1)

Publication Number Publication Date
JPH108796A true JPH108796A (en) 1998-01-13

Family

ID=16077931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18012996A Pending JPH108796A (en) 1996-06-20 1996-06-20 Drill breakage prevention lock

Country Status (1)

Country Link
JP (1) JPH108796A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541788A1 (en) * 2003-11-25 2005-06-15 HONDA MOTOR CO., Ltd. Locking device for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541788A1 (en) * 2003-11-25 2005-06-15 HONDA MOTOR CO., Ltd. Locking device for vehicle

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