JPS60113812A - Integral type eyelet pin and its procuction - Google Patents
Integral type eyelet pin and its procuctionInfo
- Publication number
- JPS60113812A JPS60113812A JP16919384A JP16919384A JPS60113812A JP S60113812 A JPS60113812 A JP S60113812A JP 16919384 A JP16919384 A JP 16919384A JP 16919384 A JP16919384 A JP 16919384A JP S60113812 A JPS60113812 A JP S60113812A
- Authority
- JP
- Japan
- Prior art keywords
- head
- bottle
- pin
- final
- diameter
- 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
Links
- 210000003128 head Anatomy 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 15
- 210000001508 eye Anatomy 0.000 claims description 6
- 210000005252 bulbus oculi Anatomy 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000000641 cold extrusion Methods 0.000 claims 1
- 239000002893 slag Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000005279 austempering Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000532 Deoxidized steel Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000744 eyelid Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000011888 snacks Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/44—Making machine elements bolts, studs, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G3/00—Making pins, nails, or the like
- B21G3/18—Making pins, nails, or the like by operations not restricted to one of the groups B21G3/12 - B21G3/16
- B21G3/28—Making pins, nails, or the like by operations not restricted to one of the groups B21G3/12 - B21G3/16 by forging or pressing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/14—Bolts or the like for shooting into concrete constructions, metal walls or the like by means of detonation-operated nailing tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Forging (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
発明の目的
産業上の利用分野
本発明は爆薬作動工具により、構築物に使用される基体
構造部例えば石造やれんが造の部分又は金属ビーム中に
打ち込まれるピン屋ファスナーに関する。OBJECTS OF THE INVENTION INDUSTRIAL APPLICATION The present invention relates to pinsmith fasteners that are driven by explosive-actuated tools into basic structures used in construction, such as masonry or brickwork sections or metal beams.
従来の技術
爆薬作動の工具に使用する、いわゆる目玉ピンは、とが
った先端部分のある柄部と、目玉が横断方向に貫通して
いる頭部とを有している。BACKGROUND OF THE INVENTION So-called eye pins used in explosive-actuated tools have a handle with a pointed tip and a head through which the eye passes transversely.
使用に際しては、ピンの柄部は前述の工具によって、例
えば石造の構造部又は鋼のビームなどに打ち込まれ、頭
部は外方に突出したま瓦桟９、目玉の部分にケーブルや
コードを挿し通すことができるようになっている。In use, the handle of the pin is driven into, for example, a masonry structure or a steel beam, with the aforementioned tool, and a cable or cord is inserted into the center of the tile beam 9, with the head projecting outward. It is now possible to pass.
爆発作動工具の中、一般的に使用されている形式のもの
は、爆発力によって駆動されてピンと接触してピンを駆
動するピストンを有しておジ、この種の工具は一般に間
接作動工具として知られている。A commonly used type of explosive-actuated tool has a piston that is driven by the explosive force to contact and drive the pin, and this type of tool is generally used as an indirect-actuated tool. Are known.
間接作動工具に使用されるようになっている目玉ピンは
、ピストンの衝撃力に耐えるだけの十分な強度を有する
ものでなければならない。Eye pins intended for use in indirectly actuated tools must have sufficient strength to withstand the impact forces of the piston.
このようにするには、柄部と頭部を一体の実体、構造と
し、ピストンは実体の頭部の後端部に衝突するようにな
っている。In order to do this, the handle and the head are made into one entity and structure, and the piston collides with the rear end of the entity's head.
発明が解決しようとする問題点
しかしながら、このような構造では、頭部の強度が過度
に低下するのを避けるためには、頭部を貫通して形成さ
れる目玉の直径を制限しなければならないことになる。Problems to be Solved by the Invention However, in such a structure, in order to avoid excessively reducing the strength of the head, it is necessary to limit the diameter of the eyeball formed through the head. It turns out.
よシ大きな直径の目玉とするには、頭部を、後端で開口
した中空弾丸（シェル）形とし、ピストンは頭部を通り
抜けて柄部の後端部に直接衝突するように形成するよう
提案された。To obtain a larger diameter eyepiece, the head should be shaped like a hollow bullet (shell) with an opening at the rear end, and the piston should be formed so that it passes through the head and impinges directly on the rear end of the handle. was suggested.
この中空シェル形構造によれば、頭部はピストンの衝撃
力に対抗する必要がなくな９１頭部にはよジ直径の大き
い目玉を形成することができる。According to this hollow shell structure, the head does not need to resist the impact force of the piston, and an eye with a large twist diameter can be formed in the head.
今日までのところ、このようなシェル形目玉ビンは、頭
部が柄部とは別体になった二部構造となっていて実質的
に生産コストの上昇を招来していた。To date, such shell-shaped eyelid bottles have been of two-part construction, with the head separate from the handle, which has resulted in a substantial increase in production costs.
発明の構成
問題点を解決するための手段
本発明によって提供しようとするのは、爆発力によって
駆動される工具によって基体中に打込まれるようになっ
ているピンを形成する方法であって、その方法は冷間成
形によって金属のスラグ（棒状素材）を成形して柄部と
、後端が開口になっている頭部とを形成し、柄部の先端
をとがらせ、所望の硬さと延性を与えるように熱処理す
る諸工程を含んでいる。SUMMARY OF THE INVENTION What the present invention seeks to provide is a method for forming a pin intended to be driven into a base body by a tool driven by explosive force, the method comprising: The method involves forming a metal slug (rod-shaped material) by cold forming to form a handle and a head with an opening at the rear end, and then sharpening the tip of the handle to achieve the desired hardness and ductility. It includes steps of heat treatment to give.
前記のスラグは、スラグ本体から押出しによって柄部金
形成し、スラグ本体をヘッディングダイ（頭部成形ダイ
）中で成形して実体の頭部とし、さらに頭部を、押出し
マンドレルに対し後方に押圧して、所望の深さと直径を
有する中空頭部にする。The slag described above is formed by extruding the slag body into a handle metal, molding the slag body in a heading die (head forming die) to form an actual head, and then pressing the head backward against an extrusion mandrel. to form a hollow head with the desired depth and diameter.
た棒をねじ通すことが出来るようなねじ孔を設けてもよ
い。A screw hole may be provided through which a rod can be screwed.
上記の方法によって製作した場合、本発明は１個づつの
ピンをも提供する。The invention also provides single pins when manufactured by the above method.
実施例
本発明の実施態様を、単なる実施例として、添々
の茨φ←（連続した工程を図示するものであシ、第６図
は完成した状態のピンを示す斜視図である。Embodiment The embodiment of the present invention is merely an embodiment of the present invention, and FIG. 6 is a perspective view showing a pin in a completed state.
本発明の好適実施例によるシェル形ビ／は、以下詳細に
説明するように、多段冷間成形法によつて基本的形状に
成形される一体構造物である。A shell-shaped bicycle according to a preferred embodiment of the present invention is a one-piece structure formed into a basic shape by a multi-stage cold forming process, as will be described in detail below.
このビンは、冷開成形法によって所定の形状にまで成形
が可能な程度に十分軟質なワイヤから取ったスラグから
成形され、その化学成分は、冷間成形後にビンを爆発力
によって打ち込むことができるだけの硬さと展性を有す
るように熱処理することができる成分になっている。冷
間成形工程を可能にするために、材料の引張強さは４５
〜６５ｋｇ／ｒｒｒｒｒ？の範囲内に設定されている。The bottle is formed from a slag taken from a wire that is soft enough to be formed into the desired shape by cold-open forming, and whose chemical composition is soft enough to allow the bottle to be driven with explosive force after cold forming. It is a component that can be heat treated to have hardness and malleability. To enable the cold forming process, the tensile strength of the material is 45
~65kg/rrrrrr? is set within the range.
スラグ（第１図）を第１のダイス内に入れ、第１冷開成
形工程では、第２図に示すように、柄部２を形成するた
めに前方に向けて押出される。スラグの後部は当初の直
径を保ったま一１図に示すような大径部を構成する。押
出されたスラグは、次に頭部成形ダイに送られ、そこで
第２冷開成形工程においてスラグの後部４が所定の呼称
直径の頭部６になるように頭部成形加工を受ける（第６
図）。頭部成形ダイ内にある間に、頭部６は、所定の深
さと直径を有し、後端が開口になっているシェル（弾丸
）形の中空円筒形の頭部８（第４図）を得るために、押
出しマンドレルに対して後向き押出し加工を受ける。The slug (FIG. 1) is placed in a first die, and in a first cold-opening process, it is extruded forward to form a handle 2, as shown in FIG. The rear part of the slug maintains its original diameter and forms a large diameter section as shown in Figure 1. The extruded slag is then sent to a head forming die, where it undergoes a head forming process in a second cold-open forming step so that the rear part 4 of the slug becomes a head 6 with a predetermined nominal diameter.
figure). While in the head forming die, the head 6 is formed into a shell-shaped hollow cylindrical head 8 (FIG. 4) with a predetermined depth and diameter and an open rear end. It undergoes backward extrusion against an extrusion mandrel to obtain .
冷開成形による基本的成形加工後に、成形済ブランクを
ダイスから外し、柄部２を尖頭加工（ポインティング）
にかける。好適には、柄部の先端を一対のダイスで挾ん
で行なう挾みポインティングによって行なう。前に行な
った冷開成形工程は、前記のブラ／りに有効な挾みポイ
ンティングを可能にするに十分な程度に加工硬化してい
ることに注意すべきである。挾みポインティングに代る
方法として、柄部は、例えば、すえ込み又は研削ポイン
ティングによることができる。弾丸型の頭部８は、所定
直径の目玉部１０（第５図）を設けるために、横断方向
に孔明けされる、外側にパリが形成されるのを避けるた
め、孔明けは頭部８の両側から行なうのがよい。After the basic forming process by cold-open forming, the formed blank is removed from the die and the handle 2 is processed into a sharp point (pointing).
Put it on. Preferably, this is carried out by pinch pointing, which is performed by pinching the tip of the handle between a pair of dies. It should be noted that the previous cold-open forming process is sufficient to work harden the bra/ri to enable effective pinch pointing. As an alternative to pinch pointing, the handle may be swaged or ground pointed, for example. The bullet-shaped head 8 is perforated in the transverse direction to provide an eyepiece 10 (FIG. 5) of a predetermined diameter. It is best to do this from both sides.
孔明は後、所望の硬度と展性を与えるため、ビンを熱処
理する、この熱処理はオーステナイト化処理とそれに絖
くオーステンパー処理である。Kongming then heat-treats the bottle to give it the desired hardness and malleability; this heat treatment involves austenitizing and austempering.
必要に応じ、ビンにメッキ、電気亜鉛メッキ又はその他
の耐食処理′ｆ：施して仕上げる、仕上げ後のビンを第
６図に示す。If necessary, the bottle is finished by plating, electrogalvanizing or other anti-corrosion treatment. The finished bottle is shown in FIG.
最後に、爆薬作動工具の胴体にビンを取り出し可能に収
容するために、慣用のシラスナックキャンプなどの付属
品を、柄部のとがった端部に装着する。Finally, an attachment, such as a conventional cilla snack camp, is attached to the pointed end of the handle for removably housing the bottle in the body of the explosive-actuated tool.
前記の方法を用いビンを製造する材料となる線材の好適
な化学成分を下記実施例を参照して示す。Suitable chemical compositions of the wire material from which bottles are manufactured using the method described above are illustrated with reference to the following examples.
実施例゛Ｉ
重量パーセントで下記のとりべ分析値を有する完全脱酸
鋼であって：
炭素 ０．６０１０．６５
けい素 ０．１０１０１０．３０
マンガン ０．９５／１．２０
ジ／ｖ Ｏ，０３以下
いおう ０．０６以下
この線材は十分に球状化熱処理を受けた軟質線引き状態
で供給され、冷開成形後には８４０°〜８６０ ’Ｃの
オーステナイト化処理と溶融塩中で２５０〜２８０ ’
Ｃで６０分のオーステンパー処理を受ける。Example I A fully deoxidized steel having the following ladle analysis values in weight percent: Carbon 0.6010.65 Silicon 0.101010.30 Manganese 0.95/1.20 di/v O,03 Below 0.06 This wire is supplied in a soft drawn state that has undergone sufficient spheroidization heat treatment, and after cold-open forming, it is austenitized at 840° to 860'C and heated to 250 to 280' in molten salt.
It undergoes austempering treatment at C for 60 minutes.
実施例■
アルミラムで結晶粒微細化されて完全脱酸化され、好ま
しくは、真空脱ガスされた鋼。Example ■ Steel grain refined with aluminum ram and completely deoxidized, preferably vacuum degassed.
この鋼のとシベ分析値は、重量パーセントで下記のもの
である：
炭素 ０．４９１０．５４％
マンガン ０．７０１０．９０％
けい素 ０．７０７１．００％
クロム ０．６０１０．８５％
りん ０．０３０以下
いおう ０．０２５以下
発明の効果
前述の方法によって、間接作動工具用のビンとして従来
のシェル形ピンを製造するコストよりはるかに低コスト
でビンを製造できる。The analytical values for this steel are as follows in weight percent: Carbon 0.4910.54% Manganese 0.7010.90% Silicon 0.7071.00% Chromium 0.6010.85% Phosphorus 0. 0.030 or less 0.025 or less Effects of the Invention By the method described above, a bottle can be manufactured at a much lower cost than the cost of manufacturing conventional shell pins for use in indirectly actuated tools.
目玉ビンを形成するため、頭部１ｏに孔明はする代ジに
、頭部１ｏを内部に雌ねじを切ったスタンドとし、その
中にねじを切った棒をねじ込むようにしてもよい。In order to form an eyeball bottle, instead of drilling a hole in the head 1o, the head 1o may be made into a stand with an internal thread cut into it, and a threaded rod may be screwed into the stand.
本発明の実施態様は、単に実施例を示すものとして記載
したもので、本発明の範囲内で種々の変更修正が可能で
あり、それらは開示した新規な特徴の全て又はそれらの
結合を含むものである。The embodiments of the present invention have been described by way of example only, and various changes and modifications may be made within the scope of the invention, including all or combinations of the disclosed novel features. .
第１図から第５図までは本発明の工程ごとの形状を示す
略図で、第６図は完成したビンの斜視図である。
代理人 浅 村 晧1 to 5 are schematic diagrams showing the shape of each step of the present invention, and FIG. 6 is a perspective view of a completed bottle. Agent Akira Asamura
Claims (4)
； ビンの頂部に頂部と一体に形成され、頂部側が開口にな
っていて横断方向に貫通する通孔（目玉）を有する管状
頭部を有し、それによって駆動棒を前記頭部を通過させ
て前記ビンの頭部に衝撃力を与えることによジ目玉ビン
が打ち込まれるようになっている一体型目玉ビン。(1) In an integral eyelet bottle for an indirect action fastener tool; The bottle has a tubular head formed integrally with the top and having a through hole (eyelet) that is open on the top side and passes through in the transverse direction. , whereby an integrated eyeball bottle is driven in by passing a drive rod through the head and applying an impact force to the head of the bottle.
において； 先端が尖ったピン部と； 前記ビン部と同心で前記ピン部の後方端と一体に後方に
向って拡がっている拡径部と；前記拡径部の後方に形成
され前記ピン部の軸を横断する方向に整列している二つ
の通孔を有する管状頭部とを有することを特徴とする一
体型目玉ピン。(2) In an integrated metal eyeball pin for an indirect action fastener drive tool; a pin portion with a sharp tip; and an enlarged diameter portion that is concentric with the pin portion and expands rearward integrally with the rear end of the pin portion. an integrated eye pin, characterized in that it has a tubular head having two through holes formed at the rear of the enlarged diameter part and aligned in a direction transverse to the axis of the pin part;
記方法が； （ａ） 円柱形金属スラグの前部を前方に押出して縮径
された柄部を形成する冷間押出し工程と；（ｂ）所定の
最終直径の仮頭部を形成するために前記スラグの残りの
後方部を冷開成形する工程と； （ｃ）弾丸形の中空円筒形で後方端が開放端になってい
る最終頭部を形成するために、前記仮頭部を押出しマン
ドレルに対して後方に冷間押出しを行なう工程と； （ｄ） 前記柄部の前部をとがらせる工程と：さらに （ｅ） 所定直径の目玉部を形成するために前記最終頭
部に横断方向に開孔する工程とを有することを特徴とす
るシェル型ビンの製造方法。(3) A method of manufacturing a shell-shaped eyeball bottle, the method comprising: (a) a cold extrusion step of extruding the front part of a cylindrical metal slug forward to form a diameter-reduced handle; b) cold-open forming the remaining rear portion of said slug to form a false head of a predetermined final diameter; (c) a final molding of a bullet-shaped hollow cylinder with an open rear end; cold extruding the false head backwards against an extrusion mandrel to form a head; (d) sharpening the front part of the handle; and (e) sharpening a predetermined diameter. A method of manufacturing a shell-type bottle, comprising the step of: opening a hole in the final head in a transverse direction to form an eye.
前記スラグが約４５〜６５ｋｇＩ／［ＩＴｒ１２の範囲
の引張り強さを有する材料であることを特徴とする特許
（５）特許請求の範囲第６項に記載の方法において；前
記前終頭部に生ずるパリが最終頭部の内側だけに在るよ
うに、前記最終頭部の横断方向に外側から内側に向って
孔明けする工程を有することを特徴とするシェル型目玉
ピンを製造する方法。(4) In the method described in claim 6,
A method according to claim 6, characterized in that said slug is a material having a tensile strength in the range of about 45 to 65 kgI/[ITr12; A method for producing a shell-type eyepiece pin, comprising the step of drilling holes in the transverse direction of the final head from the outside to the inside so that the hole is located only on the inside of the final head.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPG256283 | 1983-11-25 | ||
| AU2562/83 | 1983-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60113812A true JPS60113812A (en) | 1985-06-20 |
Family
ID=3770425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16919384A Pending JPS60113812A (en) | 1983-11-25 | 1984-08-13 | Integral type eyelet pin and its procuction |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS60113812A (en) |
| CA (1) | CA1245405A (en) |
| GB (1) | GB2150054B (en) |
| HK (1) | HK97587A (en) |
| SG (1) | SG68987G (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006224112A (en) * | 2005-02-15 | 2006-08-31 | Hoden Seimitsu Kako Kenkyusho Ltd | Press forming method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10119799A1 (en) * | 2001-04-23 | 2002-10-24 | Hilti Ag | Nail-like fixing element comprises a shaft having a second section that is shorter than a first section with a point |
| DE10328197B3 (en) * | 2003-06-24 | 2004-04-08 | Hilti Ag | Nail or screw has a core made from hard, carbon-containing steel and ferritic outer layer of softer steel whose thickness reduces from end of shaft to tip, where it is zero |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3191204A (en) * | 1962-09-17 | 1965-06-29 | Nat Machinery Co | Method and apparatus for forming socket-head cap-screw blanks |
| GB1332237A (en) * | 1971-01-19 | 1973-10-03 | Tokai Cold Forming Co Ltd | Method of making ball studs |
| GB1584661A (en) * | 1978-05-25 | 1981-02-18 | Supra Automative Ltd | Ball pins |
-
1984
- 1984-08-13 JP JP16919384A patent/JPS60113812A/en active Pending
- 1984-10-30 GB GB08427426A patent/GB2150054B/en not_active Expired
- 1984-11-07 CA CA000467238A patent/CA1245405A/en not_active Expired
-
1987
- 1987-08-24 SG SG68987A patent/SG68987G/en unknown
- 1987-12-24 HK HK97587A patent/HK97587A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006224112A (en) * | 2005-02-15 | 2006-08-31 | Hoden Seimitsu Kako Kenkyusho Ltd | Press forming method |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2150054A (en) | 1985-06-26 |
| SG68987G (en) | 1988-02-19 |
| CA1245405A (en) | 1988-11-29 |
| GB2150054B (en) | 1987-06-17 |
| GB8427426D0 (en) | 1984-12-05 |
| HK97587A (en) | 1987-12-31 |
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