JPH09272016A - Cold forming tap - Google Patents
Cold forming tapInfo
- Publication number
- JPH09272016A JPH09272016A JP8355396A JP8355396A JPH09272016A JP H09272016 A JPH09272016 A JP H09272016A JP 8355396 A JP8355396 A JP 8355396A JP 8355396 A JP8355396 A JP 8355396A JP H09272016 A JPH09272016 A JP H09272016A
- Authority
- JP
- Japan
- Prior art keywords
- tap
- thread
- female thread
- valley
- female screw
- 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.)
- Withdrawn
Links
Landscapes
- Forging (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、被加工素材の下穴
を塑性変形させて雌ねじを形成する盛上げタップに関
し、雌ねじ内径の精度向上を企図したものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a build-up tap in which a prepared hole of a material to be processed is plastically deformed to form an internal thread, and it is intended to improve the accuracy of the internal diameter of the internal thread.
【０００２】[0002]
【従来の技術】雌ねじを形成する工具の一つに盛上げタ
ップがあり、盛上げタップには、その本体外周に、形成
すべき雌ねじに対応するラジアル部がねじ状に配設され
て雄ねじが形成されている。被加工素材には、雌ねじの
有効径に略等しい下穴が設けられ、盛上げタップを被加
工素材の下穴にねじ込むことにより、下穴の内周面を塑
性変形させて雌ねじを形成する。盛上げタップを用いて
雌ねじを形成した場合、切削加工に比べて切屑が発生す
ることがなく、また、雌ねじの拡大代が小さく加工精度
が安定している。2. Description of the Related Art A tool for forming an internal thread is a build-up tap. On the build-up tap, a radial portion corresponding to the internal thread to be formed is threadedly provided on the outer circumference of the main body to form an external thread. ing. The material to be processed is provided with a pilot hole substantially equal to the effective diameter of the internal thread. By screwing the build-up tap into the pilot hole of the material to be processed, the internal peripheral surface of the pilot hole is plastically deformed to form the internal thread. When the internal thread is formed by using the thread forming tap, chips are not generated as compared with the cutting process, and the expansion margin of the internal thread is small and the processing accuracy is stable.
【０００３】[0003]
【発明が解決しようとする課題】盛上げタップは、被加
工素材の内周面にねじ山を盛り上げて雌ねじを形成する
ため、図７(a) に示したように、雌ねじ１の頂部にシー
ム部２が生じていた。シーム部２はばりの原因となり不
良品の対象となったり、雄ねじとの螺合により脱落して
製品に悪影響を与える虞があった。また、雌ねじが形成
された部品を鍍金加工した場合、シーム部２に鍍金液が
残留して錆の発生原因になることがあった。このような
ことから、被加工素材の全数を検査して雌ねじの頂部１
に生じたシーム部２を切除することが実施されている。
シーム部２の切除は、盛上げタップを用いて雌ねじを形
成した後に、リーマ工具によってシーム部２を切削除去
している。しかしこの場合、雌ねじの形成が２工程にな
って作業能率が著しく低下してしまう問題があった。Since the thread forming tap forms a female screw by raising the thread on the inner peripheral surface of the material to be processed, as shown in FIG. 7 (a), the seam portion is formed on the top of the female screw 1. 2 had occurred. There is a possibility that the seam portion 2 may cause burrs and be a target of defective products, or that the seam portions 2 may fall off due to screwing with a male screw and adversely affect the product. Further, when a component having an internal thread is plated, the plating solution may remain on the seam portion 2 and cause rust. Therefore, the total number of materials to be processed is inspected and the top part 1 of the female screw is checked.
The seam portion 2 that has occurred in the above is cut off.
In cutting off the seam portion 2, after forming a female screw using a raised tap, the seam portion 2 is cut and removed by a reamer tool. However, in this case, there is a problem that the work efficiency is remarkably reduced by forming the female screw in two steps.
【０００４】本発明は上記状況に鑑みてなされたもの
で、工程を分けることなく雌ねじを形成する同一工程下
で雌ねじの頂部に生じたシーム部をバニッシングにより
矯正することができ、しかも、工具長が長くなることが
ない盛上げタップを提供することを目的とする。The present invention has been made in view of the above circumstances. It is possible to correct the seam portion formed on the top of the female thread by burnishing in the same step of forming the female thread without dividing the steps, and further, the tool length The purpose is to provide a raised tap that does not become long.
【０００５】[0005]
【課題を解決するための手段】上記目的を解決するため
の本発明の構成は、本体の外周に複数のラジアル部がね
じ状に配設されて雄ねじが形成され、前記本体を一方向
に回転させて素材の内周面を前記ラジアル部によって塑
性変形させることにより雌ねじを形成する盛上げタップ
において、前記ねじ部の先端側に先端に向かって漸次小
径となる食付き部を形成し、該食付き部の谷を隣接する
平行ねじ部の谷より浅く形成して前記雌ねじの内径寸法
と略等しい谷径とし、当該谷部を前記本体が他方向に回
転する際に前記雌ねじの頂部に押し付けて仕上加工し得
るバニッシュ部としたことを特徴とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a plurality of radial portions are arranged in a screw shape on the outer periphery of a main body to form a male screw, and the main body is rotated in one direction. In the build-up tap for forming an internal thread by plastically deforming the inner peripheral surface of the material by the radial portion, a biting portion that gradually decreases in diameter toward the tip is formed on the tip side of the threaded portion, and the biting is performed. To form a valley that is shallower than the valleys of the adjacent parallel threads to make the valley diameter approximately equal to the inner diameter of the female screw, and press the valley to the top of the female screw when the body rotates in the other direction to finish. It is characterized in that it is a vanishable portion that can be processed.
【０００６】［作用］前記構成によれば、本体を一方向
に回転させてラジアル部によって雌ねじを盛上げる過程
では、食付き部のバニッシュ部が雌ねじに当接すること
なくラジアル部によって雌ねじが有効深さまで盛上げら
れ、本体を他方向に回転させた際に前記バニッシュ部に
よって雌ねじの頂部が仕上加工されて本体が雌ねじから
抜ける。[Operation] According to the above construction, in the process of rotating the main body in one direction and raising the female screw by the radial portion, the female screw is effectively depthd by the radial portion without the vanish portion of the bite portion contacting the female screw. When the main body is raised up to the other direction and the main body is rotated in the other direction, the top portion of the female screw is finished by the vanishing portion, and the main body comes out of the female screw.
【０００７】[0007]
【発明の実施の形態】以下、本発明に係る盛上げタップ
を実施例に基づいて詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a thread forming tap according to the present invention will be described in detail based on embodiments.
【０００８】［実施例］図１は本盛上げタップの全体構
成図、図２は図１の要部拡大図、図３は図２中のＡ−Ａ
線及びＢ−Ｂ線断面図である。[Embodiment] FIG. 1 is an overall configuration diagram of a main embossing tap, FIG. 2 is an enlarged view of a main part of FIG. 1, and FIG. 3 is an AA line in FIG.
It is a line and BB sectional drawing.
【０００９】図１に示すように、本体１１の外周部に形
成された雄ねじ１２は、先端側（図中右側）が先端に向
かって漸次小径となる食付き部１３となり、この食付き
部１３の後端側に平行ねじ部１４が連続している。ま
た、本体１１の周方向には本体１１の軸方向に延びる油
溝１５が複数形成され、食付き部１３の隣接する油溝１
５間に雌ねじの頂部に押し付けて仕上加工し得るバニッ
シュ部１６が形成されている。図示の盛上げタップは、
メートル細目ねじＭ１０、ピッチ１ｍｍ、食付き部１３
の長さ２ｍｍのタップである。As shown in FIG. 1, the male screw 12 formed on the outer peripheral portion of the main body 11 forms a bite portion 13 whose tip side (right side in the figure) gradually decreases toward the tip. The parallel thread portion 14 is continuous to the rear end side. Further, a plurality of oil grooves 15 extending in the axial direction of the main body 11 are formed in the circumferential direction of the main body 11, and the oil grooves 1 adjacent to the bite portion 13 are formed.
A vanishing portion 16 that can be pressed against the top of the female screw and finished is formed between the five. The raising tap shown is
Metric fine screw M10, pitch 1 mm, bite part 13
Is a tap having a length of 2 mm.
【００１０】図２及び図３にも示すように、雄ねじ１２
は、ラジアル部１７がねじ状に配設されて形成され、前
記バニッシュ部１６は、このラジアル部１７に一体的に
形成される。即ち、前記雄ねじ１２における食付き部１
３の谷を隣接する平行ねじ部１４の谷より浅く形成して
当該谷部をバニッシュ部１６としている。As shown in FIGS. 2 and 3, the male screw 12
Is formed by arranging a radial portion 17 in a screw shape, and the vanishing portion 16 is formed integrally with the radial portion 17. That is, the biting portion 1 of the male screw 12
The valley 3 is formed shallower than the valleys of the parallel thread portions 14 adjacent to each other, and the valley portion is used as the vanish portion 16.
【００１１】従って、本体１１の一方向の回転によって
ねじ状に配設されたラジアル部１７で雌ねじが形成され
る際には、バニッシュ部１６は雌ねじに干渉することが
ない。また、バニッシュ部１６は食付き部１３の最終の
ラジアル部１７に対応する部位だけが実質的に機能し、
当該部位のバニッシュ部１６の直径は、JIS 規格6H級の
雌ねじ内径引っ掛かり率100%(8.917mm) から78.3%(9.15
3mm)を満足させるために、引っ掛かり率85% （雌ねじの
内径寸法と略等しい）谷径の寸法としている。Therefore, when the internal thread is formed in the radial portion 17 arranged in a screw shape by the rotation of the main body 11 in one direction, the vanish portion 16 does not interfere with the internal thread. Further, in the vanishing portion 16, only the portion corresponding to the final radial portion 17 of the bite-in portion 13 substantially functions,
The diameter of the vanish part 16 at the relevant portion is from JIS standard 6H class female thread inner diameter catch rate 100% (8.917 mm) to 78.3% (9.15
In order to satisfy 3mm), the catching rate is 85% (almost equal to the inner diameter of the internal thread) and the root diameter.
【００１２】図４乃至図６に基づいて、上記構成の盛上
げタップにより止まり穴に雌ねじを形成する場合の作用
を説明する。本実施例では、アルミ合金鋳物に引っ掛か
り率が90% から95% になるように下穴２１を設けた被加
工材を用いて雌ねじ２２を形成する場合について説明す
る。図４は雌ねじを形成している状態の断面図、図５は
盛上げタップを抜いている状態の断面図、図６は盛上げ
タップの各部の寸法を示す説明図である。The operation in the case of forming the female screw in the blind hole by the raising tap having the above construction will be described with reference to FIGS. 4 to 6. In the present embodiment, a case will be described in which the female screw 22 is formed using a work material having a prepared hole 21 so that a catch rate of the aluminum alloy casting becomes 90% to 95%. FIG. 4 is a cross-sectional view showing a state where the internal thread is formed, FIG. 5 is a cross-sectional view showing a state where the build-up tap is removed, and FIG. 6 is an explanatory view showing dimensions of each part of the build-up tap.
【００１３】図示しないタッピングマシン等に盛上げタ
ップを取付け、盛上げタップを一方向（図４中矢印Ａ方
向）に回転させて食付き部１３から下穴２１に進入（図
４中矢印Ｘ方向）させる。被加工材は、ねじ状のラジア
ル部１７による塑性流動によって盛上がり、ねじ山の形
成が始まる。図６に示したように、食付き部１３での盛
上がり内径は、下穴２１の径を引っ掛かり率100%に設定
した時であっても、有効径及び外径共に食付き部１３の
テーパ角度に応じて小さくなるため、食付き部１３では
最大80% しかねじ山は盛り上がらない。従って、バニッ
シュ部１６と盛上がり途中の雌ねじ２２の内径とには隙
間があいて接触することがない。A build-up tap is attached to a tapping machine (not shown), and the build-up tap is rotated in one direction (direction of arrow A in FIG. 4) to enter from the biting portion 13 into the prepared hole 21 (direction of arrow X in FIG. 4). . The material to be processed rises due to plastic flow due to the screw-shaped radial portion 17, and thread formation starts. As shown in FIG. 6, even when the diameter of the prepared hole 21 is set to 100% for the raised inner diameter of the bite portion 13, both the effective diameter and the outer diameter have a taper angle of the bite portion 13 Therefore, in the bite-in portion 13, only 80% of the threads rise up. Therefore, there is a gap between the burnish portion 16 and the inner diameter of the female screw 22 in the middle of rising, and there is no contact.
【００１４】続いて平行ねじ部１４が進入すると、被加
工材のねじ山は更に盛上がり、平行ねじ部１４にはバニ
ッシュ部１６が存在しないので、頂部が仕上加工される
ことなく雌ねじ２２が形成される（図４の状態）。この
時、雌ねじ２２の頂部には深さ約0.15〜0.2mm のシーム
部２３が存在している。Next, when the parallel thread portion 14 enters, the thread of the work material further rises, and since the parallel thread portion 14 does not have the vanish portion 16, the female thread 22 is formed without finishing the top portion. (State of FIG. 4). At this time, a seam portion 23 having a depth of about 0.15 to 0.2 mm is present on the top of the internal thread 22.
【００１５】盛上げタップの先端が下穴２１の底部に達
すると、盛上げタップを他方向（図５中矢印Ｂ方向）に
逆回転させて下穴２１から盛上げタップを抜き始める
（図５中矢印Ｙ方向）。盛上げタップが抜けるにしたが
って、雌ねじ２２の頂部に存在するシーム部２３はバニ
ッシュ部１６によって押し付けられて矯正され、盛上げ
タップが被加工材から抜けて雌ねじ２２の形成が完了す
る。バニッシュ部１６の直径は、引っ掛かり率が85%(9.
078mm)になっているため、加工後の雌ねじ２２の内径
は、9.08〜9.10mmの範囲の一定の内径寸法に仕上げられ
る。また、図７(b)に示したように、雌ねじ２２の頂部
に存在するシーム部２３もほとんど矯正される。When the tip of the build-up tap reaches the bottom of the prepared hole 21, the build-up tap is reversely rotated in the other direction (direction of arrow B in FIG. 5) to start pulling the build-up tap from the prepared hole 21 (arrow Y in FIG. 5). direction). As the build-up tap comes off, the seam portion 23 existing on the top of the internal thread 22 is pressed and corrected by the vanishing section 16, and the build-up tap comes out of the workpiece and the formation of the internal thread 22 is completed. The diameter of the vanish part 16 has a catch rate of 85% (9.
Since it is 078 mm), the inner diameter of the female screw 22 after processing is finished to have a constant inner diameter dimension in the range of 9.08 to 9.10 mm. Further, as shown in FIG. 7B, the seam portion 23 existing on the top portion of the internal thread 22 is also almost corrected.
【００１６】従って、上述した盛上げタップによると、
食付き部１３にバニッシュ部１６を設けたことにより、
雌ねじ２２を形成して盛上げタップを逆回転させること
で、雌ねじ２２の頂部に存在するシーム部２３を矯正す
ることができる。このため、止まり穴であっても雌ねじ
２２の形成とシーム部２３の矯正が一工程で行なえると
共に、雌ねじ２２の形成と雌ねじ２２の内径部の仕上加
工を同一工程で行なうために雌ねじ２２と内径の同芯度
が一致する。また、下穴２１の径が多少ばらついていて
も、雌ねじ２２の内径を一定に加工することができ、し
かも、盛上げタップの工具長が長くなることがない。Therefore, according to the above-mentioned raising tap,
By providing the vanishing part 16 on the bite part 13,
By forming the internal thread 22 and rotating the build-up tap in the reverse direction, the seam portion 23 existing on the top of the internal thread 22 can be corrected. Therefore, even if it is a blind hole, the formation of the internal thread 22 and the correction of the seam portion 23 can be performed in one step, and the internal thread 22 and the internal thread 22 can be finished in the same step in the same step. The concentricity of the inner diameter matches. Further, even if the diameter of the prepared hole 21 varies a little, the inner diameter of the female screw 22 can be processed to be constant, and the tool length of the build-up tap does not become long.
【００１７】上記実施例において、油溝１５を軸方向に
沿って形成したが、渦巻き状に油溝１５を形成すると共
に渦巻き状の油溝１５に対応させてラジアル部１７を配
置することも可能である。また、場合によっては油溝１
５を設けずに、バリの排出手段だけを設けることも可能
である。In the above embodiment, the oil groove 15 is formed along the axial direction, but it is possible to form the oil groove 15 in a spiral shape and dispose the radial portion 17 corresponding to the spiral oil groove 15. Is. In some cases, the oil groove 1
It is also possible to provide only the burr discharging means without providing 5.
【００１８】また、本実施例では、上記除去の際には、
断面山形状のバニッシュ部１６で雌ねじ２２の頂部を拘
束した（密接した）状態で押し付け矯正することになる
ので、バリ等の発生が抑制される。また、バニッシュ部
１６は食付き部１３の最終の谷部のみが実質的に機能す
るので、複数の谷部におけるバニッシュ部１６が機能す
る場合に比べて、矯正するための回転トルクが小さくて
済む。Further, in this embodiment, during the above removal,
Since the varnish portion 16 having a mountain-shaped cross section presses and corrects the top portion of the female screw 22 in a state where the top portion of the female screw 22 is restrained (closely contacted), the occurrence of burrs or the like is suppressed. Further, in the vanishing portion 16, only the final valley portion of the bite portion 13 substantially functions, so that the rotational torque for correction may be smaller than in the case where the vanishing portions 16 in the plurality of valley portions function. .
【００１９】加えて、本実施例の盛上げタップは、食付
き部１３の谷部を浅く、言い換えれば谷部を太く形成し
たので、食付き部１３の強度アップが図れると共に、タ
ップ研削にあたって、研削工数削減や不良品発生低減等
で研削性の向上が図れる。In addition, in the raised tap of the present embodiment, the trough portion of the bite portion 13 is formed shallow, in other words, the trough portion is formed thick, so that the strength of the bite portion 13 can be increased and at the time of tap grinding. Grindability can be improved by reducing man-hours and the occurrence of defective products.
【００２０】[0020]
【発明の効果】本発明の盛上げタップは、本体の外周に
複数のラジアル部がねじ状に配設されて雄ねじが形成さ
れ、前記本体を一方向に回転させて素材の内周面を前記
ラジアル部によって塑性変形させることにより雌ねじを
形成する盛上げタップにおいて、前記雄ねじの先端側に
先端に向かって漸次小径となる食付き部を形成し、該食
付き部の谷を隣接する平行ねじ部の谷より浅く形成して
前記雌ねじの内径寸法と略等しい谷径とし、当該谷部を
前記本体が他方向に回転する際に前記雌ねじの頂部に押
し付けて仕上加工し得るバニッシュ部とし、本体の一方
向回転によりラジアル部で雌ねじを盛上げた後に、本体
の他方向回転によりバニッシュ部で雌ねじの頂部を仕上
加工するようにしたので、止まり穴であっても、工具長
を長くすることなく雌ねじ形成と雌ねじ内径部の矯正加
工とを一工程で実施することができると共に、下穴の径
が多少ばらついていても雌ねじの内径を一定に仕上げら
れる。この結果、雌ねじの頂部の仕上げ加工が効率良く
行なえ、しかも山形状のバニッシュ刃で仕上げるのでバ
リを生じない加工が出来、雌ねじの内径精度は向上す
る。In the tapping tap of the present invention, a plurality of radial portions are arranged in a screw shape on the outer periphery of the main body to form a male screw, and the main body is rotated in one direction so that the inner peripheral surface of the material is the radial portion. In a build-up tap forming a female thread by plastically deforming a portion, a biting portion having a gradually decreasing diameter toward the tip is formed on the tip side of the male thread, and the troughs of the biting portion are adjacent to each other. Formed shallower to have a valley diameter substantially equal to the inner diameter of the female screw, and as a vanish portion that can be finished by pressing the valley portion to the top of the female screw when the body rotates in the other direction, one direction of the body After the internal thread is raised in the radial part by rotation, the top part of the internal thread is finished in the vanish part by rotating the body in the other direction.Therefore, even if it is a blind hole, the tool length should not be lengthened. With the straightening of the internal thread formation and the internal thread bore can be carried out in one step, is finished inside diameter of the internal thread constant be slightly variations in the diameter of the prepared hole. As a result, the top of the female screw can be efficiently finished, and since it is finished with the mountain-shaped vanishing blade, burrs are not produced, and the precision of the inner diameter of the female screw is improved.
【図１】本発明の一実施例を示す盛上げタップの全体構
成図である。FIG. 1 is an overall configuration diagram of a build-up tap showing an embodiment of the present invention.
【図２】図１の要部拡大図である。FIG. 2 is an enlarged view of a main part of FIG.
【図３】図２中のＡ−Ａ線及びＢ−Ｂ線断面図である。3 is a cross-sectional view taken along the line AA and the line BB in FIG.
【図４】雌ねじを形成している状態の断面図である。FIG. 4 is a cross-sectional view of a state in which a female screw is formed.
【図５】盛上げタップを抜いている状態の断面図であ
る。FIG. 5 is a cross-sectional view showing a state where a raising tap is removed.
【図６】盛上げタップの各部の寸法説明図である。FIG. 6 is a dimensional explanatory diagram of each part of the build-up tap.
【図７】雌ねじの形状説明図である。FIG. 7 is an explanatory diagram of the shape of a female screw.
１１ 本体 １２ 雄ねじ １３ 食付き部 １４ 平行ねじ部 １５ 油溝 １６ バニッシュ部 １７ ラジアル部 １８ 逃げ ２１ 下穴 ２２ 雌ねじ ２３ シーム部 11 Main Body 12 Male Thread 13 Corroded Section 14 Parallel Thread Section 15 Oil Groove 16 Vanish Section 17 Radial Section 18 Relief 21 Prepared Hole 22 Female Thread 23 Seam Section
Claims (1)
に配設されて雄ねじが形成され、前記本体を一方向に回
転させて素材の内周面を前記ラジアル部によって塑性変
形させることにより雌ねじを形成する盛上げタップにお
いて、前記ねじ部の先端側に先端に向かって漸次小径と
なる食付き部を形成し、該食付き部の谷を隣接する平行
ねじ部の谷より浅く形成して前記雌ねじの内径寸法と略
等しい谷径とし、当該谷部を前記本体が他方向に回転す
る際に前記雌ねじの頂部に押し付けて仕上加工し得るバ
ニッシュ部としたことを特徴とする盛上げタップ。1. A plurality of radial portions are arranged in a screw shape on the outer periphery of a main body to form a male screw, and the main body is rotated in one direction to plastically deform the inner peripheral surface of the material by the radial portion. In a thread forming tap forming an internal thread, a chamfer having a gradually decreasing diameter toward the tip is formed on the tip side of the threaded portion, and a valley of the chamfer is formed to be shallower than a valley of an adjacent parallel screw portion. A build-up tap having a valley diameter that is substantially equal to the inner diameter of the female screw, and is a vanish portion that can be finished by pressing the valley portion against the top of the female screw when the main body rotates in the other direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8355396A JPH09272016A (en) | 1996-04-05 | 1996-04-05 | Cold forming tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8355396A JPH09272016A (en) | 1996-04-05 | 1996-04-05 | Cold forming tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09272016A true JPH09272016A (en) | 1997-10-21 |
Family
ID=13805712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8355396A Withdrawn JPH09272016A (en) | 1996-04-05 | 1996-04-05 | Cold forming tap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09272016A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343004C (en) * | 2000-03-09 | 2007-10-17 | 株式会社田野井制作所 | Screwtap and threading method |
| WO2012161506A3 (en) * | 2011-05-24 | 2013-01-24 | Kim Young-Jwa | Thread rolling tap |
| WO2018193515A1 (en) | 2017-04-18 | 2018-10-25 | オーエスジー株式会社 | Thread forming tap |
| JP2019529139A (en) * | 2016-09-28 | 2019-10-17 | ヴァルター アーゲー | Thread forming tool |
| JP2020097100A (en) * | 2018-10-29 | 2020-06-25 | エミューゲ ヴェルク リチャード グリンペル ゲーエムベーハー ウント カンパニー ケージー ファブリック ファープレーツィシオンスヴェルクツォイゲ | Thread former having flaring ridges |
-
1996
- 1996-04-05 JP JP8355396A patent/JPH09272016A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343004C (en) * | 2000-03-09 | 2007-10-17 | 株式会社田野井制作所 | Screwtap and threading method |
| WO2012161506A3 (en) * | 2011-05-24 | 2013-01-24 | Kim Young-Jwa | Thread rolling tap |
| JP2019529139A (en) * | 2016-09-28 | 2019-10-17 | ヴァルター アーゲー | Thread forming tool |
| WO2018193515A1 (en) | 2017-04-18 | 2018-10-25 | オーエスジー株式会社 | Thread forming tap |
| KR20190118610A (en) | 2017-04-18 | 2019-10-18 | 오에스지 가부시키가이샤 | Precursor tab |
| US11110531B2 (en) | 2017-04-18 | 2021-09-07 | Osg Corporation | Thread forming tap |
| JP2020097100A (en) * | 2018-10-29 | 2020-06-25 | エミューゲ ヴェルク リチャード グリンペル ゲーエムベーハー ウント カンパニー ケージー ファブリック ファープレーツィシオンスヴェルクツォイゲ | Thread former having flaring ridges |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030701 |