JP2641173B2 - Key manufacturing method - Google Patents
Key manufacturing methodInfo
- Publication number
- JP2641173B2 JP2641173B2 JP2150467A JP15046790A JP2641173B2 JP 2641173 B2 JP2641173 B2 JP 2641173B2 JP 2150467 A JP2150467 A JP 2150467A JP 15046790 A JP15046790 A JP 15046790A JP 2641173 B2 JP2641173 B2 JP 2641173B2
- Authority
- JP
- Japan
- Prior art keywords
- key
- key body
- slit
- tip
- manufacturing
- 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
Links
Landscapes
- Lock And Its Accessories (AREA)
- Push-Button Switches (AREA)
Description
【発明の詳細な説明】 〈産業上の利用分野〉 この発明は、複数のタンブラーピンを錠軸と平行に配
設し、シャーラインが錠軸と垂直な平面に形成されるシ
リンダ錠用キーの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a cylinder lock key in which a plurality of tumbler pins are arranged in parallel with a lock shaft, and a shear line is formed on a plane perpendicular to the lock shaft. It relates to a manufacturing method.
〈従来の技術〉 複数のタンブラーピンを錠軸と平行に配設し、シャー
ラインが錠軸と垂直な平面に形成されるシリンダ錠が従
来より使用されている。この種のシリンダ錠に用いられ
るキーは、第５図に示すように、先端に筒部21を有し、
この筒部21の先端外周部に係合突起22が突設されると共
に、先端外周部に錠本体側のタンブラーピンと係合する
凹部23が設けられている。<Prior Art> A cylinder lock in which a plurality of tumbler pins are arranged in parallel with a lock shaft and a shear line is formed on a plane perpendicular to the lock shaft has been used conventionally. The key used in this type of cylinder lock has a cylindrical portion 21 at the tip as shown in FIG.
An engagement projection 22 is projected from an outer peripheral portion of the distal end of the cylindrical portion 21, and a concave portion 23 that engages with a tumbler pin on the lock body side is provided on an outer peripheral portion of the distal end.
また、この種のシリンダ錠のキーは、一般的に使用さ
れている板状キーと異なり、立体的に複雑な形状である
ため、鍛造やプレス加工によって製造することが難し
く、従来より特殊な精密鋳造、例えばダイヤキャスト
法、ロストワックス法によって製造されていた。Also, unlike the commonly used plate keys, this type of cylinder lock key has a complicated three-dimensional shape, making it difficult to manufacture by forging or pressing. It was manufactured by casting, for example, a diamond casting method or a lost wax method.
〈発明が解決しようとする課題〉 しかし、ダイキャスト法やロストワックス法によって
製造すると、製造コストが高く、通常、鋳造金属として
アルミニウム合金や亜鉛合金が使用されるので、鋳造さ
れたキーの耐摩耗性が低く、長期間の使用によってキー
が著しく摩耗するという課題があった。<Problems to be Solved by the Invention> However, when manufactured by the die casting method or the lost wax method, the manufacturing cost is high, and since aluminum alloys and zinc alloys are usually used as the casting metal, the wear resistance of the cast keys is reduced. There is a problem in that the keys are poorly worn and the keys are significantly worn by long-term use.
この発明は、このような課題を解決するために考えら
れたもので、耐摩耗性の良い鋼材を使用して、機械加工
により低コストで製造するできるキーの製造方法を提供
することを目的としている。The present invention has been conceived to solve such a problem, and has as its object to provide a method of manufacturing a key that can be manufactured at low cost by machining using a steel material having good wear resistance. I have.
〈課題を解決するための手段〉 このような目的を達成するために、この発明のキーの
製造方法は、複数のタンブラービンを錠軸と並行に配設
し、シャーラインを錠軸と垂直な平面に形成したシリン
ダ錠用キーの製造方法であって、鋼板を打ち抜き加工し
て、第１の先端爪部1bと突起部1aとを一体に形成したキ
ーの把持部１を得る工程と、丸棒鋼材を切削加工して、
半球状の先端2fを形成すると共に、末端に内孔2eと周縁
のフランジ部を形成したキー本体部２を得る工程と、上
記キー本体部２のフランジ部の一部を残して残余をプレ
スで打ち抜いて第２の先端爪部2aを形成する工程と、切
削加工により、上記キー本体部２の半球状の先端2fに軸
方向にスリット2bを形成すると共に、このスリット2bの
延長線上の外周部一側に溝2cを形成する工程と、この溝
2cの底部に長孔2dをプレス加工によって打ち抜く工程
と、上記把持部１の突起部1aを上記キー本体部２のスリ
ット2cを経て上記長孔2dに嵌入して上記内孔2e内に突出
させると共に、キー本体部２の半球状の先端2fを内側へ
かしめて把持部１と結合して固定するものである。<Means for Solving the Problems> In order to achieve such an object, the method for manufacturing a key according to the present invention includes disposing a plurality of tumbler bins in parallel with a lock shaft, and forming a shear line perpendicular to the lock shaft. A method for manufacturing a key for a cylinder lock formed on a flat surface, wherein a steel plate is punched to obtain a grip portion 1 of a key in which a first tip claw portion 1b and a projection portion 1a are integrally formed; Cutting bar material,
A step of obtaining a key body 2 having a hemispherical tip 2f and an inner hole 2e and a peripheral flange formed at a distal end, and pressing a remaining part of the key body 2 while pressing a part of the flange. A step of forming a second tip claw portion 2a by punching, and forming a slit 2b in the axial direction at a hemispherical tip 2f of the key body portion 2 by cutting, and an outer peripheral portion on an extension of the slit 2b. Forming a groove 2c on one side, and forming the groove
A step of punching a long hole 2d at the bottom of 2c by press working, and a projection 1a of the grip portion 1 is fitted into the long hole 2d through the slit 2c of the key body portion 2 and projected into the inner hole 2e. At the same time, the hemispherical tip 2f of the key main body 2 is crimped inward and is connected to the gripper 1 and fixed.
〈実施例〉 以下、この発明の実施例を図面に基づいて詳細に説明
する。<Example> Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
この発明のキーの製造方法によると、キーの把持部１
とキー本体部２とを別々に製造して、その後、結合して
固定する。According to the key manufacturing method of the present invention, the key grip 1
And the key body 2 are manufactured separately, and then combined and fixed.
把持部１は、鋼板をプレス加工により打ち抜き、第２
図に示す形状に加工される。即ち、板状の把持部１の先
端には、後述するキー本体部２のスリット2dに嵌入され
てキー本体部２の内孔2e内に突出する突起部1aと、キー
の先端爪部1bが一体的に形成される。また、把持部１の
中央付近には、キー本体部２の半球状の先端部2fが、か
しめられた際に嵌入するための半円形の孔1cが穿設され
ている。The gripper 1 is formed by stamping a steel plate by pressing,
It is processed into the shape shown in the figure. That is, at the tip of the plate-like gripper 1, a projection 1a fitted into a slit 2d of the key body 2 to be described later and protruding into an inner hole 2e of the key body 2, and a tip claw 1b of the key are provided. It is formed integrally. A semi-circular hole 1c is formed near the center of the grip 1 so that the hemispherical tip 2f of the key body 2 can be fitted when swaged.
一方、キー本体部２は、丸棒鋼材を、第１図のＩ〜IV
に示すように順次に機械加工して形成される。On the other hand, the key body 2 is made of a round steel bar,
As shown in FIG.
即ち、先ず、丸棒鋼材を施盤などにかけ、先端を半球
状に丸く切削加工すると共に、後端に軸方向の内孔2eを
穿設し、その後端の外周にフランジ部を形成して、キー
本体半製品を作る（第１図のＩ）。That is, first, a round steel bar is put on a lathe or the like, and the tip is rounded in a hemispherical shape, an axial inner hole 2e is formed in the rear end, and a flange is formed on the outer periphery of the rear end, and the key is formed. The main body semi-finished product is made (I in FIG. 1).
このキー本体半製品をプレス機にかけ、後端の一端に
先端爪部2aを残して、残余のフランジ部を切り落とし、
さらに、切削加工により半球状の先端部に軸方向のスリ
ット2bを形成する（第１図のII）。This key body semi-finished product is put on a press machine, leaving the tip claw portion 2a at one end of the rear end, cutting off the remaining flange portion,
Further, an axial slit 2b is formed in the hemispherical tip portion by cutting (II in FIG. 1).
キー本体半製品の側部を切削加工して、溝2cを形成す
る（第１図のIII）。この溝2cは、スリット2bの延長線
上の外周一側部に形成して、キー本体部２における溝2c
の部分の肉厚を薄くする。A side portion of the semi-finished key body is cut to form a groove 2c (III in FIG. 1). The groove 2c is formed on one side of the outer circumference on the extension of the slit 2b, and is formed in the groove 2c in the key body 2.
Thickness of the part.
次に、溝2cの底部に、把持部１の突起部1aを嵌入する
ための長孔2dをプレス加工により形成する（第１図のI
V）。この長孔2dは、肉厚を薄くした溝2cの底の部分
（例えば、厚さ1mm）にプレス加工されるので、キー本
体半製品の内孔2eの中にメス型を挿入することなく、プ
レスによって容易に打ち抜くことができる。Next, a long hole 2d for fitting the protrusion 1a of the grip portion 1 is formed at the bottom of the groove 2c by press working (I in FIG. 1).
V). Since this long hole 2d is pressed into the bottom portion (for example, 1 mm thick) of the groove 2c having a reduced thickness, without inserting a female mold into the inner hole 2e of the semi-finished key body, It can be easily punched by pressing.
そして、このような各工程を経て作られた把持部１と
キー本体部２とは、第２図の組立図に示すように、把持
部１の突起部1aをキー本体部２の溝2cを経て長孔2d内に
嵌入し、キー本体部２のスリット2bを把持部１の半円孔
1cの付近に挿入した状態で、キー本体部２の半球状の先
端部2fを内側にかしめ、半円孔1c内に圧入させることに
より、相互に結合して固定する。Then, as shown in the assembly drawing of FIG. 2, the grip 1 and the key body 2 formed through each of these steps are connected to the protrusion 1a of the grip 1 and the groove 2c of the key body 2. Through the slit 2b of the key body 2 and the semicircular hole of the gripper 1.
With the key body 2 inserted near 1c, the hemispherical tip 2f of the key body 2 is crimped inward and press-fitted into the semicircular hole 1c, thereby connecting and fixing each other.
この結合して固定した状態で、把持部１に設けた先端
爪部1bが、キー本体部２の先端から突出し、突起部1aが
キー本体部２の内孔2e内に突出する（第４図参照）。In this fixed state, the tip claw portion 1b provided on the grip portion 1 projects from the tip of the key body 2, and the projection 1a projects into the inner hole 2e of the key body 2 (FIG. 4). reference).
そして、錠本体側のタンブラーピンと係合する凹部23
が、キー本体部２の先端外周部に設けられ、第３図およ
び第４図に示すキーが作られる。その後、バレル加工な
どを行なった後、メッキ処理されてキーが完成する。Then, the recess 23 engaging with the tumbler pin on the lock body side
Are provided on the outer periphery of the distal end of the key body 2, and the keys shown in FIGS. 3 and 4 are made. Then, after performing barrel processing etc., it is plated and the key is completed.
〈発明の効果〉 以上の実施例に基づく説明から明らかなように、先端
爪部1b、2aを有し、内孔2e内に突起部1aを突設させた複
雑な形状のキーを、鋳造ではなく、切削やプレスなどの
機械加工により比較的簡単に製造することができ、低い
コストで高精度のキーを作ることができる。特に、キー
本体部２に設ける長孔2dは、肉厚を薄くしてプレス加工
で簡単に打ち抜くことができる。<Effect of the Invention> As is clear from the description based on the above embodiment, a key having a complicated shape having tip claw portions 1b and 2a and protruding the projection portion 1a in the inner hole 2e is obtained by casting. Instead, it can be manufactured relatively easily by machining such as cutting or pressing, and a high-precision key can be manufactured at low cost. In particular, the long hole 2d provided in the key body 2 can be easily punched out by press working with a reduced thickness.
第１図は、この発明の製造方法におけるキー本体部の加
工工程を示す説明図、 第２図は、把持部とキー本体部との組立図、 第３図は、この発明の製造方法で作ったキーの左側面
図、 第４図は、この発明の製造方法で作ったキーの正面図、 第５図は、従来のキーの斜視図である。 １……把持部 1a……突起部 1b……第１の先端爪部 ２……キー本体部 2a……第２の先端爪部 2b……スリット 2c……溝 2d……長孔 2e……内孔 2f……半球状の先端部FIG. 1 is an explanatory view showing a processing step of a key body part in a manufacturing method of the present invention, FIG. 2 is an assembly view of a grip part and a key body part, and FIG. 3 is made by a manufacturing method of the present invention. FIG. 4 is a front view of a key made by the manufacturing method of the present invention, and FIG. 5 is a perspective view of a conventional key. DESCRIPTION OF SYMBOLS 1 ... Grip part 1a ... Protrusion part 1b ... First tip claw part 2 ... Key body part 2a ... Second tip claw part 2b ... Slit 2c ... Groove 2d ... Elongated hole 2e ... Inner hole 2f …… Hemispherical tip
Claims (1)
し、シャーラインを錠軸と垂直な平面に形成したシリン
ダ錠用キーの製造方法であって、 鋼板を打ち抜き加工して、第１の先端爪部と突起部とを
一体に形成したキーの把持部を得る工程と、 丸棒鋼材を切削加工して、半球状の先端を形成すると共
に、末端に内孔と周縁のフランジ部を形成したキー本体
部を得る工程と、 上記キー本体部のフランジ部の一部を残して残余をプレ
スで打ち抜いて第２の先端爪部を形成する工程と、 切削加工により、上記キー本体部の半球状の先端に軸方
向にスリットを形成すると共に、該スリットの延長線上
の外周部一側に溝を形成する工程と、 該溝の底部に長孔をプレス加工によって打ち抜く工程
と、 上記把持部の突起部を上記キー本体部のスリットを経て
上記長孔に嵌入して上記内孔2e内に突出させると共に、
キー本体部の半球状の先端を内側へかしめて把持部と結
合して固定することを特徴とするキーの製造方法。1. A method for manufacturing a key for a cylinder lock in which a plurality of tumbler bins are arranged in parallel with a lock shaft, and a shear line is formed on a plane perpendicular to the lock shaft. (1) a step of obtaining a key grip portion in which a tip claw portion and a projection portion are integrally formed; and a round bar steel material is cut to form a hemispherical tip, and an inner hole and a peripheral flange portion are formed at a distal end. A step of obtaining a key body part formed with: a step of forming a second claw part by punching out the remainder with a press while leaving a part of the flange part of the key body part; Forming a slit in the axial direction at the hemispherical tip of the above, and forming a groove on one side of the outer peripheral portion on an extension of the slit; punching a long hole at the bottom of the groove by press working; The protrusion of the key into the slit of the key body Together with fitted in the slots to project into the bore 2e through,
A method for manufacturing a key, comprising crimping a hemispherical tip of a key body inward and connecting and fixing the same to a grip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2150467A JP2641173B2 (en) | 1990-06-08 | 1990-06-08 | Key manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2150467A JP2641173B2 (en) | 1990-06-08 | 1990-06-08 | Key manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0444579A JPH0444579A (en) | 1992-02-14 |
| JP2641173B2 true JP2641173B2 (en) | 1997-08-13 |
Family
ID=15497555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2150467A Expired - Lifetime JP2641173B2 (en) | 1990-06-08 | 1990-06-08 | Key manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2641173B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101718669B1 (en) * | 2016-12-16 | 2017-03-21 | 아주대학교산학협력단 | Composition for treatment of cartilage damage and method for preparation of artificial cartilage |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4859996A (en) * | 1971-11-30 | 1973-08-22 | ||
| JPH0247716Y2 (en) * | 1984-12-21 | 1990-12-14 | ||
| JPH01143732A (en) * | 1987-11-27 | 1989-06-06 | Toshiba Corp | Pressing method |
-
1990
- 1990-06-08 JP JP2150467A patent/JP2641173B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0444579A (en) | 1992-02-14 |
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