JPH0239643B2 - SERUFUTATSUPINGUNEJIOYOBISONOSEIZOHOHO - Google Patents
SERUFUTATSUPINGUNEJIOYOBISONOSEIZOHOHOInfo
- Publication number
- JPH0239643B2 JPH0239643B2 JP5283A JP5283A JPH0239643B2 JP H0239643 B2 JPH0239643 B2 JP H0239643B2 JP 5283 A JP5283 A JP 5283A JP 5283 A JP5283 A JP 5283A JP H0239643 B2 JPH0239643 B2 JP H0239643B2
- Authority
- JP
- Japan
- Prior art keywords
- screw
- thread
- main body
- tapered part
- 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.)
- Expired - Lifetime
Links
- 238000010079 rubber tapping Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000003973 paint Substances 0.000 description 22
- 125000002091 cationic group Chemical group 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Landscapes
- Forging (AREA)
- Dowels (AREA)
Description
【発明の詳細な説明】
この発明は、セルフタツピングねじとその製造
方法に係り、特に自動車部品を車体に固着するの
に好適で、かつ製造容易なセルフタツピングねじ
とその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a self-tapping screw and a method for manufacturing the same, and more particularly to a self-tapping screw that is suitable for fixing automobile parts to a vehicle body and is easy to manufacture, and a method for manufacturing the same.
周知のように、バンパー部品やサイドミラー等
の自動車部品を車体に固定する手段としては、ボ
ルト固定が一般的である。このため、車体にはボ
ルト挿着用の孔が予じめ穿設され、或いは該孔が
開設された車体部分にナツトを該孔と同心となる
よう予じめ溶着されている。そして、このように
ボルト挿着用の孔域いは該孔とナツトとが設けら
れた車体は、この後塗料槽に浸漬されて電着塗装
されるわけであるが、この時、上記孔及びナツト
孔内周面には塗料が付着して該孔及びナツト孔を
閉塞してしまい易いという問題を有していた。特
に近年においては、塩害対策上の要請及び耐候性
の要請から、上記塗料としてカチオン系の塗料が
多く用いられているのが現状である。このカチオ
ン系塗料は、良く知られているように、乾燥する
と硬くなるという特性を有していることから、孔
及びナツト孔が該カチオン系塗料で閉塞されてい
る状態のままボルトを挿着することは不可能であ
り、無理に挿着しようとするとボルトやナツトの
ねじ山が破損又は傷損するばかりか、車体が傷損
したり塗装が剥離し易いという問題を有してい
た。 As is well known, bolt fixing is a common means for fixing automobile parts such as bumper parts and side mirrors to a vehicle body. For this purpose, a hole for inserting a bolt is pre-drilled in the vehicle body, or a nut is welded to the portion of the vehicle body in which the hole is provided so as to be concentric with the hole. Then, the car body in which the hole area for bolt insertion or the hole and nut are provided is then immersed in a paint bath and electrocoated, and at this time, the hole and nut are There was a problem in that paint adhered to the inner peripheral surface of the hole and tended to clog the hole and the nut hole. Particularly in recent years, cationic paints have been widely used as the paints due to demands for salt damage countermeasures and weather resistance. As is well known, this cationic paint has the property of becoming hard when it dries, so the bolt is inserted while the hole and nut hole are blocked with the cationic paint. It is impossible to do so, and if you try to forcefully insert the bolt or nut, the threads of the bolt or nut will not only be damaged or damaged, but also the vehicle body will be damaged or the paint will easily peel off.
このため、従来では、塗装後、前記孔及びナツ
ト孔に付着したカチオン系塗料を逐一人手により
除去しなければならず、作業が著るしく煩雑とな
るという問題を有していた。 For this reason, conventionally, after painting, the cationic paint adhering to the holes and nut holes had to be manually removed one by one, making the work extremely complicated.
このような問題を解決する手段としては、マス
キングテープで予じめ孔及びナツト孔を閉塞して
おいて塗装するか、タツプ立てして塗料が孔及び
ナツト孔の内周面に流入し付着しないようにし塗
装後該タツプを除去することも考えられるが、こ
のいずれの方法を用いても作業工程が増えてしま
い、作業性が改善されずコスト高となるという問
題を有し、にわかには採用できないという不具合
を有していた。 To solve this problem, either cover the holes and nut holes with masking tape before painting, or tap them so that the paint flows into the inner circumferential surfaces of the holes and nut holes and prevents them from sticking. It is also possible to remove the tap after painting, but either method increases the number of work steps, does not improve workability, and increases costs, so it cannot be adopted suddenly. It had this problem.
この発明は、かかる現状に鑑み為されたもので
あつて、その目的とするところは、自動車部品の
取付用孔及びナツト孔がカチオン系塗料により閉
塞されていても、容易にボルトを挿着して自動車
部品等を取り付けることができ、しかも製造容易
で低廉なセルフタツピングねじ及びその製造方法
を提供しようとするものである。 This invention was made in view of the current situation, and its purpose is to easily insert bolts even if the mounting holes and nut holes of automobile parts are blocked by cationic paint. The present invention aims to provide a self-tapping screw that can be used to attach automobile parts, etc., and that is easy to manufacture and inexpensive, and a method for manufacturing the same.
かかる目的を達成するため、この発明にあつて
は、セルフタツピングねじを、ねじ頭部と、この
ねじ頭部に連続した軸部に所定のリード角及びピ
ツチでねじ山を刻設してなるねじ主体と、このね
じ主体の先端より尖端方向に向け順次細径となる
よう形成されてなるテーパー部と、このテーパー
部にねじ軸線に沿つて凹設されてなるガイド溝と
から構成し、かつ上記ねじ主体とテーパー部との
境界部近傍に位置するねじ山は、ねじ主体のねじ
山の外径より大径に構成したものである。 In order to achieve this object, the present invention provides a self-tapping screw in which a thread is carved at a predetermined lead angle and pitch on a screw head and a shaft portion continuous to the screw head. Consisting of a screw main body, a tapered part formed so that the diameter becomes gradually smaller from the tip of the screw main body toward the tip, and a guide groove recessed in the tapered part along the screw axis, and The thread located near the boundary between the thread main body and the tapered portion is configured to have a larger diameter than the outer diameter of the thread of the thread main body.
また、この発明にあつては、上記セルフタツピ
ングねじを、ねじ頭部に連続した軸部に所定のリ
ード角及びピツチでねじ山を刻設してねじ主体を
形成し、かつこのねじ主体の先端には尖端方向に
向け順次細径となるようテーパー部を連設し、こ
のテーパー部にはねじ軸線に沿つてガイド溝を凹
設するとともに、該ガイド溝の形成時に生じる余
肉を、上記ねじ主体とテーパー部との境界部付近
に肉盛りし、該境界部付近のねじ山をねじ主体の
ねじ山の外径より大径となるよう製造することを
特徴とするものである。 Further, in the present invention, the self-tapping screw has a thread formed on a shaft portion continuous with the screw head at a predetermined lead angle and pitch to form a thread main body, and the thread main body is A tapered part is provided at the tip so that the diameter becomes smaller in sequence toward the tip, and a guide groove is provided in this tapered part along the screw axis, and the excess material generated when forming the guide groove is removed by the above-mentioned method. It is characterized in that the material is built up near the boundary between the thread main body and the tapered portion, and the thread near the border is manufactured to have a larger diameter than the outer diameter of the thread of the thread main body.
以下、添付図面に示す実施例にもとづき、この
発明を詳細に説明する。 Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.
この実施例に係るセルフタツピングねじＢは、
第１図に示すように、ねじ頭部１と、このねじ頭
部１に連続した軸部に所定のリード角及びピツチ
でねじ山２ａを刻設してなるねじ主体２と、この
ねじ主体２の先端より尖端方向に向け順次細径と
なるよう形成されてなる略円錘台状のテーパー部
３とから構成され、該テーパー部３には上記ねじ
主体２のねじ山２ａと同様のリード角とピツチで
形成されたねじ山３ａが上記ねじ山２ａに連続し
て刻設されている。尚、第１図中６は平座金、７
はねじ頭部１と平座金６間に介装された波形ばね
座金である。 The self-tapping screw B according to this embodiment is
As shown in FIG. 1, a screw head 1, a screw main body 2 having a screw thread 2a carved at a predetermined lead angle and pitch on a shaft continuous to the screw head 1, and a screw main body 2 having a screw thread 2a formed at a predetermined lead angle and pitch. The tapered part 3 has a substantially truncated conical shape and has a diameter that gradually becomes smaller from the tip toward the tip, and the tapered part 3 has a lead angle similar to that of the thread 2a of the screw main body 2. A threaded thread 3a formed with a pitch is continuous with the threaded thread 2a. In addition, 6 in Figure 1 is a plain washer, 7
is a wave spring washer interposed between the screw head 1 and the flat washer 6.
また、上記テーパー部３には、特に第２図と第
３図に示すように、ねじ軸線Ｘに沿つて複数条の
ガイド溝４が凹設されているとともに、このガイ
ド溝４間のねじ山３ａは、特に第３図に示すよう
に、ドリル刃状に切削されて切れ刃部３ｂと二番
取り面３ｃで構成されている。 Further, as shown in FIGS. 2 and 3, a plurality of guide grooves 4 are provided in the tapered portion 3 along the screw axis X, and the threads between the guide grooves 4 are recessed. Particularly, as shown in FIG. 3, 3a is cut in the shape of a drill bit and is composed of a cutting edge portion 3b and a second chamfer surface 3c.
またさらに、上記テーパー部３とねじ主体２と
の境界部付近に位置するねじ山２３ａは、ねじ主
体２のねじ山２ａの外径より若干大径となるよう
形成されている（約0.2mm程度大径に形成するの
が好適である）。すなわち、このねじ山２３ａの
外径は、図示しないが車体に開設された自動車部
品取付用の孔径及びナツトの雌ねじにおける谷径
又は有効径と略同径となるよう形成されている。 Furthermore, the thread 23a located near the boundary between the tapered portion 3 and the screw main body 2 is formed to have a slightly larger diameter than the outer diameter of the thread 2a of the thread main body 2 (approximately 0.2 mm). (It is preferable to form it with a large diameter.) That is, the outer diameter of the thread 23a is formed to be approximately the same as the diameter of a hole (not shown) for attaching an automobile part made in the vehicle body and the root diameter or effective diameter of the female thread of the nut.
一方、ねじ主体２の一部には、ねじ軸線方向Ｘ
に対するｌの長さと横方向に対するｈの巾の範囲
内に緩み防止用のロツク部５が形成されている。
このロツク部５の細部形状は、特に第４図に示す
ように、ねじ山２ａの頂部を、ナツトの締付方向
に対し順次所定傾斜角度θで低くした左傾斜状に
押圧変形せしめて各台形ねじ山５ａを形成すると
共に、台形ねじ山５ａの頂部は、ねじのリード角
線に沿つて幅方向に一旦拡張され、その後順次縮
少する態様に構成されている。 On the other hand, a part of the screw main body 2 is
A lock portion 5 for preventing loosening is formed within the range of the length l with respect to the lateral direction and the width h with respect to the lateral direction.
The detailed shape of the lock portion 5 is formed by pressing and deforming the top of the screw thread 2a into a left-inclined shape that is sequentially lowered at a predetermined inclination angle θ with respect to the nut tightening direction, as shown in FIG. While forming the thread 5a, the top of the trapezoidal thread 5a is configured such that it once expands in the width direction along the lead angle line of the screw, and then gradually contracts.
次に、上記実施例に係るセルフタツピングねじ
Ｂを製造する場合について説明すると、セルフタ
ツピングねじＢは、溝形成用チツプT1と押圧チ
ツプT2を装着した固定ダイスD1並びに移動ダイ
スD2との間に、予じめヘツダー等で圧造されて
なるねじ素材（図示せず）を介在させて転造加工
することにより形成することができる。この時、
テーパー部３とねじ主体２の境界部付近に形成さ
れるねじ主体のねじ山２ａ外径より大きい外径を
有するねじ山２３ａは、ガイド溝４の形成時に生
じたねじ素材の余肉を上記境界部付近へ肉盛り
し、この盛上げた余肉を利用して転造加工される
よう、固定ダイスD1側に溝形成用チツプT1が一
体的に装着されている。また同じく固定ダイス
D1側の終端付近に一体的に装着した押圧チツプ
T2によつて、ねじ主体２の略中央部にはロツク
部５が押圧形成されるものである。なおテーパー
部３のねじ山３ａ及び境界部付近のねじ山２３ａ
については滲炭焼入れをすることにより硬度を出
し、切削効果を向上せしめることが好ましい。 Next, to explain the case of manufacturing the self-tapping screw B according to the above embodiment, the self-tapping screw B consists of a fixed die D1 and a movable die D equipped with a groove forming tip T1 and a pressing tip T2 . It can be formed by interposing a thread material (not shown) that has been forged in advance with a header or the like between 2 and 2 and performing rolling processing. At this time,
The thread 23a, which is formed near the boundary between the tapered part 3 and the thread main body 2 and has an outer diameter larger than the outer diameter of the thread 2a of the thread main body, uses the excess thickness of the thread material generated during the formation of the guide groove 4 at the boundary. A groove forming chip T 1 is integrally attached to the fixed die D 1 side so that the material is built up near the part and the extra thickness is used for rolling processing. Also fixed dice
Pressing tip integrally installed near the end of D1 side
A lock portion 5 is press-formed approximately at the center of the screw main body 2 by T 2 . Note that the thread 3a of the tapered part 3 and the thread 23a near the boundary part
It is preferable to apply charcoal quenching to increase hardness and improve the cutting effect.
次に、上記実施例に係るセルフタツピングねじ
Ｂを使用する場合について説明する。乾燥して硬
化したカチオン系塗料により閉塞された孔又はナ
ツト孔に本実施例に係るセルフタツピングねじＢ
を挿入し、閉塞させて締めつけると、孔又はナツ
ト孔に付着したカチオン系塗料はドリル作用を有
するテーパー部３のねじ山３ａ及びねじ山２３ａ
により削られながら孔及びナツト孔より除去さ
れ、この除去された塗料のカスはガイド溝４に導
入されて順次孔又はナツト孔外へと捨てられる。
この時、テーパー部３のガイド溝４間に配設され
ているねじ山３ａは、第３図に示すように、ドリ
ル刃状に形成されているので、切れ刃部３ｂによ
り孔又はナツト孔内を閉塞するカチオン系塗料を
切削し、該切削された塗料は、二番取り面３ｃよ
りガイド溝４内へと導入され孔又はナツト孔外へ
とイドされて捨てられる。また、このようにテー
パー部３でドリル作用により切削された塗料の
他、ナツト孔の雌ねじ間に埋れた塗料等は、ナツ
ト雌ねじ部の谷径又は有効径と略同径に膨出形成
されたねじ山２３ａにより完全に切削除去され
る。 Next, a case will be described in which the self-tapping screw B according to the above embodiment is used. The self-tapping screw B according to this example is inserted into the hole or nut hole that is blocked by the dried and hardened cationic paint.
When the screw is inserted, closed, and tightened, the cationic paint adhering to the hole or nut hole will be removed by the threads 3a and 23a of the tapered part 3, which have a drilling effect.
The paint residue is removed from the hole and nut hole while being scraped by the paint, and the removed paint residue is introduced into the guide groove 4 and sequentially thrown out of the hole or nut hole.
At this time, the thread 3a disposed between the guide grooves 4 of the tapered part 3 is formed in the shape of a drill bit, as shown in FIG. The cut paint is introduced into the guide groove 4 from the second chamfered surface 3c, and is drained out of the hole or nut hole and discarded. In addition to the paint cut off by the drill action at the taper part 3, the paint buried between the female threads of the nut hole is bulged to approximately the same diameter as the root diameter or effective diameter of the female nut thread. It is completely removed by thread 23a.
このようにして塗料が切削され除去された後、
ねじ主体２とナツトとは、通常のボルトナツトと
同様の状態で螺合する。この時、ロツク部５に形
成された各台形ねじ山５ａの頂部が傾斜状に押圧
され拡張される結果、例えば第５図に示すよう
に、台形ねじ山５ａの頂部両側の塑性変形した突
部がナツトＮのねじ山両側面に各々密接し、緩み
止めの作用をなす。 After the paint has been cut and removed in this way,
The screw main body 2 and the nut are screwed together in the same manner as a normal bolt/nut. At this time, the tops of the trapezoidal threads 5a formed on the lock portion 5 are pressed and expanded in an inclined manner, resulting in plastically deformed protrusions on both sides of the tops of the trapezoidal threads 5a, as shown in FIG. are in close contact with both sides of the thread of nut N, and act to prevent loosening.
それ故、この実施例に係るセルフタツピングね
じＢにあつては、ねじ主体２の先端部にテーパー
部３が形成されているので車体に開設された孔又
は車体に固着されたナツトの孔への導入がスムー
ズに行えるばかりでなく、該テーパー部３は、そ
のねじ山３ａがドリル状に形成され、かつ該テー
パー部３とねじ主体２との境界部付近に形成され
たねじ山２３ａは、ねじ主体２のねじ山２ａの外
径より大径に形成されているので、上記孔又はナ
ツト内周面に付着した硬度が高いカチオン系塗料
を小さなねじ込みトルクでかつ完全に切削除去で
きるとともに、この切削除去された塗料はガイド
溝４に沿つて各孔外へと排出されるので切削作業
労力も少なくてすむという効果を奏する。またガ
イド溝４やねじ山２３ａの製造は、所望のチツプ
を装着するのみで通常のねじ転造と何ら変ること
なく容易に行うことができる。 Therefore, in the self-tapping screw B according to this embodiment, since the tapered portion 3 is formed at the tip of the screw main body 2, it can be inserted into a hole opened in the vehicle body or a hole in a nut fixed to the vehicle body. Not only can the introduction be carried out smoothly, but also the thread 3a of the tapered part 3 is formed in the shape of a drill, and the thread 23a formed near the boundary between the tapered part 3 and the screw main body 2 is Since the diameter is larger than the outer diameter of the thread 2a of the screw main body 2, the hard cationic paint attached to the hole or the inner peripheral surface of the nut can be completely removed with a small screw torque. Since the removed paint is discharged out of each hole along the guide groove 4, there is an effect that the labor required for cutting work can be reduced. Further, the guide groove 4 and the thread 23a can be easily manufactured by simply attaching a desired chip, without any difference from ordinary thread rolling.
この発明は、以上の構成を有するので、自動車
部品取付用の孔又はナツト孔がカチオン系塗料に
閉塞されても、容易にこれを切削除去できるので
車体等を傷損する虞れが全く生ぜず、しかも自動
車部品の取付作業が大幅に容易となる他、製造も
極めて容易であるので廉価に提供することもでき
る。 Since the present invention has the above configuration, even if the holes or nut holes for attaching automobile parts are clogged with cationic paint, it can be easily cut and removed, so there is no risk of damaging the car body etc. In addition, it greatly facilitates the installation work of automobile parts, and it is also extremely easy to manufacture, so it can be provided at a low price.
図面はこの発明の一実施例に係るセルフタツピ
ングねじを示すものであつて、第１図は全体正面
図、第２図は要部を拡大して示す説明図、第３図
は第２図−線断面図、第４図はロツク部の構
成を示す説明図、第５図はナツトとの螺合状態を
示す部分断面図、第６図及び第７図は転造加工用
の固定ダイスと移動ダイスを示す説明図、第８図
イは溝形成用チツプの平面図、第８図ロは同側面
図、第８図ハは第８図イのハ−ハ線・縦断面図、
第９図イは押圧チツプの平面図、第９図ロは同正
面図、第９図ハは同側面図である。
符号の説明、Ｂ……セルフタツピングねじ、Ｎ
……ナツト、１……ねじ頭部、２……ねじ主体、
２ａ……ねじ山、３……テーパー部、３ａ……ね
じ山、４……ガイド溝、５……ロツク部、２３ａ
……ねじ山。
The drawings show a self-tapping screw according to an embodiment of the present invention, in which Fig. 1 is an overall front view, Fig. 2 is an explanatory view showing an enlarged main part, and Fig. 3 is an illustration of Fig. 2. - Line sectional view, Figure 4 is an explanatory diagram showing the structure of the lock part, Figure 5 is a partial sectional view showing the state of screwing with a nut, Figures 6 and 7 are a fixed die for rolling processing. An explanatory diagram showing a moving die, FIG. 8A is a plan view of the groove forming chip, FIG. 8B is a side view of the same, FIG.
9A is a plan view of the pressing tip, FIG. 9B is a front view thereof, and FIG. 9C is a side view thereof. Explanation of symbols, B...Self-tapping screw, N
...nut, 1...screw head, 2...screw main body,
2a...Thread thread, 3...Tapered part, 3a...Thread thread, 4...Guide groove, 5...Lock part, 23a
...Screw thread.
Claims (1)
所定のリード角及びピツチでねじ山を刻設してな
るねじ主体と、このねじ主体の先端より尖端方向
に向け順次細径となるよう形成されてなるテーパ
ー部と、このテーパー部にねじ軸線に沿つて凹設
されてなるガイド溝とからなり、上記ねじ主体と
テーパー部との境界部近傍に位置するねじ山は、
ねじ主体のねじ山の外径より大径に形成されてい
ることを特徴とするセルフタツピングねじ。 ２ ねじ頭部に連続した軸部に所定のリード角及
びピツチでねじ山を刻設してねじ主体を形成し、
かつこのねじ主体の先端には尖端方向に向け順次
細径となるようテーパー部を連設し、このテーパ
ー部にはねじ軸線に沿つてガイド溝を凹設すると
ともに、該ガイド溝の形成時に生じる余肉を上記
ねじ主体とテーパー部との境界部付近に肉盛り
し、該境界部付近のねじ山をねじ主体のねじ山の
外径より大径に形成することを特徴とするセルフ
タツピングねじの製造方法。[Scope of Claims] 1. A screw head, a screw main body in which a thread is carved at a predetermined lead angle and pitch on a shaft portion continuous with the screw head, and a screw main body having a screw thread formed at a predetermined lead angle and pitch, and extending from the tip of the screw main body toward the tip. A screw comprising a tapered part formed to have a progressively smaller diameter, and a guide groove recessed in the tapered part along the screw axis, and located near the boundary between the main body of the screw and the tapered part. Mountain,
A self-tapping screw characterized by having a diameter larger than the outer diameter of the main screw thread. 2. Form the main body of the screw by carving a thread with a predetermined lead angle and pitch on the shaft continuous to the screw head,
In addition, a tapered part is provided at the tip of the main body of the screw so that the diameter becomes gradually smaller toward the tip, and a guide groove is provided in this tapered part along the axis of the screw, and a guide groove is formed when forming the guide groove. A self-tapping screw characterized in that extra thickness is built up near the boundary between the screw main body and the tapered part, and the thread near the boundary is formed to have a larger diameter than the outer diameter of the thread of the main screw. manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5283A JPH0239643B2 (en) | 1983-01-05 | 1983-01-05 | SERUFUTATSUPINGUNEJIOYOBISONOSEIZOHOHO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5283A JPH0239643B2 (en) | 1983-01-05 | 1983-01-05 | SERUFUTATSUPINGUNEJIOYOBISONOSEIZOHOHO |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59126108A JPS59126108A (en) | 1984-07-20 |
| JPH0239643B2 true JPH0239643B2 (en) | 1990-09-06 |
Family
ID=11463473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5283A Expired - Lifetime JPH0239643B2 (en) | 1983-01-05 | 1983-01-05 | SERUFUTATSUPINGUNEJIOYOBISONOSEIZOHOHO |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0239643B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH056214U (en) * | 1991-07-05 | 1993-01-29 | 尾張精機株式会社 | Tapping screw |
| JP4590279B2 (en) * | 2004-02-12 | 2010-12-01 | トヤマキカイ株式会社 | Repair method of female thread using a tapping tap |
| JP6263751B2 (en) * | 2013-10-03 | 2018-01-24 | 株式会社青山製作所 | bolt |
-
1983
- 1983-01-05 JP JP5283A patent/JPH0239643B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59126108A (en) | 1984-07-20 |
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