JP2006220227A - Mechanism of male and female screws, and screwdriver - Google Patents

Mechanism of male and female screws, and screwdriver Download PDF

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JP2006220227A
JP2006220227A JP2005034745A JP2005034745A JP2006220227A JP 2006220227 A JP2006220227 A JP 2006220227A JP 2005034745 A JP2005034745 A JP 2005034745A JP 2005034745 A JP2005034745 A JP 2005034745A JP 2006220227 A JP2006220227 A JP 2006220227A
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screw
male
female
countersunk
female screw
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JP4519672B2 (en
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Hiroshi Kawano
洋 川野
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Nippon Telegraph and Telephone Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a mechanism of male and female screws, and a screwdriver to be used to the mechanism for screwing up a corresponding recessless countersunk-head male-screw in a female-screw hole bored in a workpiece by fastening torque in a short time. <P>SOLUTION: The mechanism α of male and female screws achieves jointing between workpieces by screwing up the corresponding recessless countersunk-head male-screw 2 in the female-screw hole 1 bored in the workpiece A. A plurality of V-grooves 13 for adjusting screw are grooved extendedly to the peripheral edge of the external opening on an opening seal-face 12 forming the female-screw hole 1. The recessless countersunk male-screw 2 comprises a screw head 22 and a screw body 21. In the screw head 22, a smooth top surface 23, a screw-seating face 24 in which a plurality of V-grooves 25 for adjusting screw having more numbers of grooves than those grooved on the opening seat-face 12 are grooved extendedly to the peripheral edge of the top surface. In the screw body 21, screw threads are grooved throughout the length of the outer peripheral surface. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、加工部材接合の用に供される雌雄ネジ機構及びネジ回しに関し、特に、加工部材に空けられた雌ネジ穴に、対応する無刻印皿頭雄ネジを短時間且つ高締結トルクで螺合締結可能とする雌雄ネジ機構及びこれに適用されるネジ回しに関する。   The present invention relates to a male and female screw mechanism and screwdriver used for joining processed members, and in particular, to a female screw hole formed in a processed member, a corresponding unmarked countersunk male screw with a high fastening torque in a short time. The present invention relates to a male and female screw mechanism that can be screwed and fastened and a screwdriver applied thereto.

従来より、ネジは、任意の機器の構造部材を接合する手段として広く利用されている。ネジを締め付けるための手法としては、ネジ頭の頂端面に、プラス（＋）形状の「十字穴」やマイナス（−）形状の「すり割り」などの刻印を形成し、この刻印に、対応する穂先形状をもつネジ回しを当て嵌めることにより、ネジに回転トルクを与えるものが一般的である。   Conventionally, screws have been widely used as means for joining structural members of arbitrary devices. As a method for tightening the screw, a mark such as a plus (+) shaped “cross hole” or a minus (−) shaped “slot” is formed on the top end surface of the screw head, and this marking is supported. It is common to apply rotational torque to a screw by applying a screwdriver having a tip shape.

しかしながら、構造部材に締め付けられたネジは、上記刻印に対応した穂先形状をもつネジ回しがあれば、容易に緩めることが可能である。こうした特質は、一旦、正規の工程で締め付けられたネジが第三者によって緩められると不都合を生じる場合、例えば、ネジの締付け操作が適正に行われていることを機器の動作条件とする場合などにおいては、極めて不適切である。   However, the screw fastened to the structural member can be easily loosened if there is a screwdriver having a tip shape corresponding to the marking. These characteristics are inconvenient if a screw that has been tightened in a regular process is loosened by a third party, for example, when the operation condition of the device is that the screw is properly tightened. Is extremely inappropriate.

このため、従来、十字穴やすり割りなど一般的な形状からなる刻印の使用を避け、ネジ頭の頂部に特殊な形状の刻印を設けたネジも利用されている。しかし、その特殊刻印の形状に対応した穂先形状をもつネジ回しを持つ者がいれば、そのネジが緩められる可能性は依然として存在するため、刻印形状の工夫だけでは、いたずら等によるネジ緩め操作を完全に防止することは不可能といえる。   For this reason, conventionally, a screw having a specially-shaped stamp on the top of the screw head has been used, avoiding the use of a stamp having a general shape such as a cross hole file. However, if there is a person who has a screwdriver with a tip shape corresponding to the shape of the special marking, there is still a possibility that the screw will be loosened. It cannot be completely prevented.

こうした問題に応えるため、例えば、下記の非特許文献１に開示の「無刻印皿頭雄ネジ及び圧電ネジ回し」が提案されている。
Ｈｉｒｏｓｈｉ Ｋａｗａｎｏ，Ｈｉｄｅｙｕｋｉ Ａｎｄｏ，“Ｓｔｕｄｙ ｏｆ ａ Ｒｅｃｅｓｓｌｅｓｓ Ｓｃｒｅｗ ａｎｄ ａ Ｐｉｅｚｏ Ｅｌｅｃｔｒｉｃ Ｓｃｒｅｗｄｒｉｖｅｒ”，Ｐｒｏｃｅｅｄｉｎｇｓ ｏｆ ２００４ ＩＥＥＥ／ＲＳＪ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｃｏｎｆｅｒｅｎｃｅ ｏｎ Ｉｎｔｅｌｌｉｇｅｎｔ Ｒｏｂｏｔｓ ａｎｄ Ｓｙｓｔｅｍｓ，ｐｐ．９０３−９０７，Ｓｅｐｔｅｍｂｅｒ，２００４ In order to respond to such a problem, for example, the “non-engraved countersunk male screw and piezoelectric screwdriver” disclosed in the following Non-Patent Document 1 has been proposed.
Hiroshi Kawano, Hideyuki Ando, “Study of a Less Less Screw and a Piezo Electric Screwdriver”, Proceedings of Combo Int. 903-907, September, 2004

この提案技術によれば、圧電ネジ回しの摩擦力発生層と、雌ネジ穴内にある程度挿入された無刻印皿頭雄ネジのネジ頭とを接触させつつ、圧電ネジ回しの各圧電層を各々所定の方向に振動させると、摩擦力発生層とネジ頭の頂端面との間に摩擦力が誘起され、この摩擦力が、圧電ネジ回し側で生起された回転トルクを締結トルクとしてネジ頭に伝達することにより、無刻印皿頭雄ネジが雌ネジ穴に螺合締結される。   According to this proposed technique, each piezoelectric layer of the piezoelectric screwdriver is set in a predetermined manner while contacting the frictional force generating layer of the piezoelectric screwdriver and the screw head of the unmarked countersunk male screw inserted to some extent in the female screw hole. When a vibration is generated, a frictional force is induced between the frictional force generation layer and the top end surface of the screw head, and this frictional force transmits the rotational torque generated on the piezoelectric screwdriver side to the screw head as a fastening torque. By doing so, the unmarked countersunk male screw is screwed into the female screw hole.

無刻印皿頭雄ネジの雌ネジ穴への螺入が進んで、そのネジ胴体先端部が雌ネジ穴奥部に達するようになると、噛み合うネジ山同士の数が増えてくるため、かかる螺入を更に進めるには、かなりの高締結トルクを必要とする。   As the screw head of the unmarked countersunk head male screw advances into the female screw hole and the tip of the screw body reaches the inner part of the female screw hole, the number of threads that mesh with each other increases. In order to proceed further, a considerably high fastening torque is required.

無刻印皿頭雄ネジは、元来、そのネジ頭が小径であるため回転トルクが伝わり難く、所要の回転トルクが無刻印皿頭雄ネジに確実に伝わるようにするためには、極めて高い予圧にてネジ回しを無刻印皿頭雄ネジのネジ頭に押し当てる必要がある。しかしながら、そのようにすると、加工部材のネジ締結部位や無刻印皿頭雄ネジのネジ頭が高い押圧に耐え切れずに壊れてしまい、また上記提案技術を採用すると、圧電ネジ回しを構成する各圧電層が高い押圧反力を受けることで振動を止めてしまう支障が生じる。そのため、同提案技術を採用して無刻印皿頭雄ネジを雌ネジ穴に螺合締結しようとすると、高い予圧力が掛けられず、無刻印皿頭雄ネジの雌ネジ穴への螺入が進むにつれ、回転トルク伝達が次第に難しくなることに伴い、かかる予圧の低さ等に起因して前記頂端面と圧電ネジ回しの摩擦力発生層との間に「すべり」が発生し、これらの間で強い摩擦力を確保することが困難となってくることから、その螺合締結に適した高締結トルクが得られないことが多い。   The unmarked countersunk male screw originally has a small diameter, so the rotational torque is difficult to be transmitted. To ensure that the required rotational torque is transmitted to the unmarked countersunk male screw, an extremely high preload is required. It is necessary to press the screwdriver against the screw head of the unmarked countersunk male screw. However, in that case, the screw fastening part of the processed member and the screw head of the unmarked countersunk head male screw break without being able to withstand high pressure, and if the above proposed technique is adopted, each of the piezoelectric screwdrivers constituting the screwdriver When the piezoelectric layer receives a high pressing reaction force, a trouble that stops the vibration occurs. For this reason, when the proposed technology is used to screw the unmarked countersunk male screw into the female screw hole, high preload is not applied, and the unmarked countersunk male screw is not screwed into the female screw hole. As it progresses, the transmission of rotational torque becomes increasingly difficult, resulting in a “slip” between the top end surface and the frictional force generation layer of the piezoelectric screwdriver due to the low preload. Therefore, it is difficult to secure a strong frictional force, so that a high fastening torque suitable for the screw fastening is often not obtained.

ところで、本件出願人は、美観や取扱性に優れ、第三者による緩め操作防止を可能とする「ネジ」を、出願番号「特願２００４−１７３０２０」の特許出願にて提案している。   By the way, the present applicant has proposed a “screw” that is excellent in aesthetics and handleability and that can prevent a loosening operation by a third party in a patent application having an application number “Japanese Patent Application No. 2004-173020”.

この特許出願によれば、ネジ本体の頂冠部の頂端面（無刻印の平面）と接着固化層の介層接着にて機構的に連結された基端面を有するトルク印加手段（例えば、刻印付のネジ頭部材）を操作することで、ネジ本体を対応する雌ネジ穴に螺合締結させた後、美観性を得るなどの理由により、所定の熱処理にて接着固化層を頂冠部の頂端面とトルク印加手段の基端面との両面から剥離させてトルク印加手段を除去することで、頂冠部の頂端面を露出させる。   According to this patent application, a torque applying means (for example, engraved with a mark) having a top end surface (a non-marked plane) of the top crown portion of the screw body and a base end surface mechanically coupled by interlaminar bonding of an adhesive solidified layer. The screw head member) is screwed and fastened to the corresponding female screw hole, and then the adhesive solidified layer is applied to the top end of the top crown portion by a predetermined heat treatment for reasons such as obtaining aesthetics. The top end surface of the top crown portion is exposed by removing the torque applying unit by peeling the surface from both surfaces of the surface and the base end surface of the torque applying unit.

しかしながら、上記特許出願によれば、ネジ本体を雌ネジ穴に螺合締結するのに必要な高締結トルクが得られるものの、美観性を得るなどを目的としてネジ本体の頂冠部の頂端面を露出させるのには、トルク印加手段の除去が必須であり、ネジ本体を雌ネジ穴に螺合締結するという本来ならば短時間で済む単純な作業を目的とするにも拘わらず、その作業を終えるまでに長い時間が費やされてしまう。   However, according to the above-mentioned patent application, although the high fastening torque necessary for screwing and fastening the screw body into the female screw hole can be obtained, the top end surface of the top crown portion of the screw body is obtained for the purpose of obtaining aesthetics. In order to expose it, it is essential to remove the torque application means, and the work is performed even though the purpose is a simple work which can be done in a short time if the screw body is screwed and fastened to the female screw hole. It takes a long time to finish.

ここにおいて、本発明の解決すべき主要な目的は、次のとおりである。
即ち、本発明の第１の目的は、加工部材に空けられた雌ネジ穴に、対応する無刻印皿頭雄ネジを短時間且つ高締結トルクで螺合締結可能とする雌雄ネジ機構及びこれに適用されるネジ回しを提供せんとするものである。 Here, the main objects to be solved by the present invention are as follows.
That is, a first object of the present invention is to provide a male and female screw mechanism capable of screwing and fastening a corresponding unmarked countersunk male screw to a female screw hole formed in a machining member in a short time and with a high fastening torque. It is intended to provide an applicable screwdriver.

本発明の第２の目的は、簡単な構成及び操作手順にて、加工部材に空けられた雌ネジ穴に、対応する無刻印皿頭雄ネジを螺合締結可能とする雌雄ネジ機構及びこれに適用されるネジ回しを提供せんとするものである。   A second object of the present invention is a male and female screw mechanism capable of screwing and fastening a corresponding unmarked countersunk male screw into a female screw hole vacated in a processed member with a simple configuration and operation procedure, and to this It is intended to provide an applicable screwdriver.

本発明の第３の目的は、美観性に優れ、第三者による緩め操作防止を可能とする雌雄ネジ機構及びこれに適用されるネジ回しを提供せんとするものである。   The third object of the present invention is to provide a male / female screw mechanism that is excellent in aesthetics and that can prevent a loosening operation by a third party, and a screwdriver applied thereto.

本発明の他の目的は、明細書、図面、特に特許請求の範囲の各請求項の記載から、自ずと明らかとなろう。   Other objects of the present invention will become apparent from the specification, drawings, and particularly the description of each claim.

本発明雌雄ネジ機構においては、加工部材に空けられた雌ネジ穴を形成する開口受座面に複数の溝を設けると共に、無刻印皿頭雄ネジを構成するネジ頭のネジ座面に、当該開口受座面におけるよりも溝数の多い複数の溝を設ける、という特徴的構成手段を講じる。   In the male and female screw mechanism of the present invention, a plurality of grooves are provided in the opening receiving surface that forms the female screw hole formed in the processing member, and the screw seat surface of the screw head that constitutes the unmarked countersunk head male screw includes A characteristic constitution means is provided in which a plurality of grooves having a larger number of grooves than in the opening seating surface are provided.

また、本発明ネジ回しにおいては、把持部材と、雌ネジ穴に螺合締結される無刻印皿頭雄ネジのネジ頭にその接触端面で接触押圧しつつ回転可能なネジ頭接触作用部材と、を含むネジ回しであって、前記雌ネジ穴を形成する開口受座面に複数の溝を設けると共に、前記ネジ頭のネジ座面に、当該開口受座面におけるよりも溝数の多い複数の溝を設ける、という特徴的構成手段を講じる。   Further, in the screwdriver of the present invention, a gripping member, a screw head contact action member that is rotatable while being pressed and contacted at the contact end surface thereof with a screw head of an unmarked countersunk male screw screwed and fastened into the female screw hole, A screwdriver including a plurality of grooves in the opening seating surface forming the female screw hole, and a screw seating surface of the screw head having a plurality of grooves having a larger number of grooves than in the opening seating surface. A characteristic means of providing a groove is taken.

さらに、具体的詳細に述べると、当該課題の解決では、本発明が次に列挙する上位概念から下位概念に亙る新規な特徴的構成手段を採用することにより、前記目的を達成するよう為される。   More specifically, in order to solve the problem, the present invention achieves the above-mentioned object by adopting a new characteristic configuration means ranging from the superordinate concept listed below to the subordinate concept. .

即ち、本発明雌雄ネジ機構の第１の特徴は、加工部材に空けられた雌ネジ穴に、対応する無刻印皿頭雄ネジを螺合締結することで加工部材間の接合を達成する雌雄ネジ機構であって、前記雌ネジ穴を形成する開口受座面に、複数の溝が外口周端縁に向けて延設されており、前記無刻印皿頭雄ネジが、滑らかな頂端面と、前記開口受座面におけるよりも溝数の多い複数の溝が頂端面外周縁に向けて延設されたネジ座面と、を有するネジ頭と、外周面長手方向に亙り螺刻されたネジ胴体と、を具備してなる、雌雄ネジ機構の構成採用にある。   That is, the first feature of the male and female screw mechanism of the present invention is that the male and female screws achieve the joining between the processing members by screwing and fastening the corresponding unmarked countersunk male screws to the female screw holes formed in the processing members. A plurality of grooves extending toward the outer peripheral edge of the opening receiving surface that forms the female screw hole, and the unmarked countersunk male screw has a smooth top end surface; A screw head having a screw seat surface in which a plurality of grooves having a larger number of grooves than in the opening seating surface are extended toward the outer peripheral edge of the top end surface, and a screw screwed in the longitudinal direction of the outer peripheral surface And a body male and female screw mechanism.

本発明雌雄ネジ機構の第２の特徴は、上記本発明雌雄ネジ機構の第１の特徴における前記雌ネジ穴を形成する前記開口受座面及び前記ネジ頭の前記ネジ座面が、それぞれ、前記ネジ胴体の一部が前記雌ネジ穴内に螺入された前記無刻印皿頭雄ネジが、前記ネジ座面の一部を前記開口受座面の一部に接触させつつ前記雌ネジ穴の軸線方向について傾斜回転可能となる、テーパ面を有するように成形されてなる、雌雄ネジ機構の構成採用にある。   The second feature of the male and female screw mechanism of the present invention is that the opening seat surface forming the female screw hole and the screw seat surface of the screw head in the first feature of the female and male screw mechanism of the present invention are The unmarked countersunk male screw, in which a part of the screw body is screwed into the female screw hole, has an axis of the female screw hole while bringing a part of the screw seat surface into contact with a part of the opening seat surface. The configuration employs a male and female screw mechanism that is formed so as to have a tapered surface that can be inclined and rotated in the direction.

本発明雌雄ネジ機構の第３の特徴は、上記本発明雌雄ネジ機構の第１又は第２の特徴における前記ネジ頭の前記ネジ座面における溝数が、前記雌ネジ穴を形成する前記開口受座面における溝数よりも１本多く採られてなる、雌雄ネジ機構の構成採用にある。   The third feature of the male / female screw mechanism of the present invention is that the number of grooves in the screw seat surface of the screw head in the first or second feature of the present invention male / female screw mechanism forms the female screw hole. The configuration employs a male and female screw mechanism, which is one more than the number of grooves on the seating surface.

本発明雌雄ネジ機構の第４の特徴は、上記本発明雌雄ネジ機構の第１、第２又は第３の特徴における前記ネジ頭の前記ネジ座面及び前記雌ネジ穴を形成する前記開口受座面における前記溝が、Ｖ溝である、雌雄ネジ機構の構成採用にある。   The fourth feature of the male and female screw mechanism of the present invention is the opening seat for forming the screw seat surface of the screw head and the female screw hole in the first, second or third feature of the female and male screw mechanism of the present invention. The groove on the surface is a V-groove and has a male and female screw mechanism.

本発明雌雄ネジ機構の第５の特徴は、上記本発明雌雄ネジ機構の第１、第２、第３又は第４の特徴における前記ネジ胴体が、その先端部に向けて漸次細くなるように成形されてなる、雌雄ネジ機構の構成採用にある。   A fifth feature of the male / female screw mechanism of the present invention is that the screw body according to the first, second, third, or fourth feature of the male / female screw mechanism of the present invention is formed so as to become gradually narrower toward the tip. In this configuration, the male and female screw mechanism is employed.

一方、本発明ネジ回しの第１の特徴は、上記本発明雌雄ネジ機構の第１、第２、第３、第４又は第５の特徴における前記開口受座面に複数の前記溝を延設して加工部材に空ける前記雌ネジ穴に、滑らかな前記頂端面と、複数の前記溝を延設した前記ネジ座面とを形成する前記ネジ頭を有する前記無刻印皿頭雄ネジを螺合締結するのに用いるネジ回しであって、把持部材と、前記無刻印皿頭雄ネジの前記ネジ頭頂端面に直接接触押圧する接触端面を形成し且つ当該無刻印皿頭雄ネジをその螺合方向に従動回転可能に作用するネジ頭接触作用部材と、を備えてなる、ネジ回しの構成採用にある。   On the other hand, the first feature of the screwdriver of the present invention is that a plurality of the grooves are extended in the opening seating surface in the first, second, third, fourth, or fifth feature of the male / female screw mechanism of the present invention. Then, the non-engraved countersunk male screw having the screw head that forms the smooth top end surface and the screw seat surface having the plurality of grooves extended therein is screwed into the female screw hole formed in the processed member. A screwdriver used for fastening, wherein a gripping member and a contact end face that directly contacts and presses the screw head top end face of the unmarked countersunk male screw are formed and the unmarked countersunk male screw is screwed in the screwing direction And a screw-head contact acting member acting so as to be driven to rotate.

本発明ネジ回しの第２の特徴は、上記本発明ネジ回しの第１の特徴における前記ネジ頭接触作用部材の前記接触端面が、前記ネジ胴体の一部が前記雌ネジ穴内に螺入された前記無刻印皿頭雄ネジが、前記ネジ頭の前記ネジ座面の一部を当該雌ネジ穴を形成する前記開口受座面の一部に接触させつつ当該雌ネジ穴の軸線方向について傾斜回転するときに、前記ネジ頭の前記頂端面が当該軸線方向に直交する平面となす角度と同程度の傾斜角の傾斜面を、有するように成形されてなる、ネジ回しの構成採用にある。   The second feature of the present invention screwdriver is that the contact end surface of the screw head contact action member in the first feature of the present invention screwdriver is such that a part of the screw body is screwed into the female screw hole. The unmarked countersunk male screw is inclined and rotated in the axial direction of the female screw hole while bringing a part of the screw seat surface of the screw head into contact with a part of the opening seating surface forming the female screw hole. In this case, a screwdriver configuration is adopted in which the top end surface of the screw head is formed so as to have an inclined surface having an inclination angle approximately equal to an angle formed with a plane orthogonal to the axial direction.

本発明ネジ回しの第３の特徴は、上記本発明ネジ回しの第１又は第２の特徴における前記把持部材が、回転トルク発生源としてアクチュエータを内蔵してなる、ネジ回しの構成採用にある。   A third feature of the present invention screwdriver is the adoption of a screwdriver configuration in which the gripping member in the first or second feature of the present invention screwdriver incorporates an actuator as a rotational torque generation source.

本発明によれば、前記無刻印皿頭雄ネジの前記雌ネジ穴への螺入が進んで、前記ネジ頭の前記ネジ座面が当該雌ネジ穴を形成する前記開口受座面に接触するようになると、当該ネジ座面の放射溝数が当該開口受座面の放射溝数よりも多いことから、当該ネジ座面に設けられた複数の前記放射溝のうち、一部が当該開口受座面に設けられた一部の前記放射溝と噛み合う一方、別の一部が当該開口受座面の前記放射溝と噛み合えずに浮く。これにより、前記ネジ頭の前記頂端面が、前記雌ネジ穴の軸線方向に垂直な平面、即ち、加工部材の雌ネジ穴形成面に対して傾くこととなる。   According to the present invention, the unmarked countersunk head male screw is screwed into the female screw hole, and the screw seat surface of the screw head comes into contact with the opening seating surface forming the female screw hole. Then, since the number of radiation grooves on the screw seat surface is larger than the number of radiation grooves on the opening seat surface, a part of the plurality of radiation grooves provided on the screw seat surface is part of the aperture receiver. While one part of the radiating groove provided on the seating surface meshes with the other, the other part floats without meshing with the radiating groove of the opening receiving surface. Thereby, the top end surface of the screw head is inclined with respect to a plane perpendicular to the axial direction of the female screw hole, that is, a female screw hole forming surface of the processing member.

このような状態になると、前記ネジ回しの前記把持部材に所要の荷重を掛けて、前記ネジ頭接触作用部材の前記接触端面を前記ネジ頭の前記頂端面に接触押圧させれば、前記ネジ回し側で生起された回転トルクに由来する回転力が、前記ネジ頭の前記頂端面に沿ってではなく、同面に斜めから直接直角印加されるようになるから、当該頂端面と前記ネジ頭接触作用部材の前記接触端面との間にて「すべり」が発生しても、それに何ら影響されることなく、前記回転トルクが前記ネジ頭へ直ちに伝達される。   In such a state, if a required load is applied to the gripping member of the screwdriver and the contact end surface of the screw head contact acting member is brought into contact with the top end surface of the screw head, the screwdriver The rotational force derived from the rotational torque generated on the side is not applied along the top end surface of the screw head, but is applied directly to the same surface at a right angle from an oblique direction, so that the top end surface contacts the screw head. Even if "slip" occurs between the contact end surfaces of the action member, the rotational torque is immediately transmitted to the screw head without being affected by it.

従って、本発明によれば、前記ネジ回し側にて所望の回転トルクを発生させれば必ず高締結トルクが得られて、前記無刻印皿頭雄ネジを対応する前記雌ネジ穴に短時間で螺合締結することが可能となる。また、それを可能とするには、上述の簡単な構成及び単純な作業手順を採用するだけで良い。   Therefore, according to the present invention, if a desired rotational torque is generated on the screw driver side, a high fastening torque is always obtained, and the unmarked countersunk male screw is inserted into the corresponding female screw hole in a short time. It can be screwed and fastened. Moreover, in order to make it possible, it is only necessary to adopt the above-described simple configuration and simple work procedure.

また、本発明によれば、そもそも前記無刻印皿頭雄ネジを採用していることから、美観性に優れると共に、加工部材の雌ネジ穴形成部位を壊すなどしない限り、前記雌ネジ穴に螺合締結された前記無刻印皿頭雄ネジを緩めたり、取り外したりすることが不可能であり、第三者による緩め操作を確実に防止する。   In addition, according to the present invention, since the unmarked countersunk male screw is originally adopted, it is excellent in aesthetics and is screwed into the female screw hole unless the female screw hole forming portion of the processed member is broken. It is impossible to loosen or remove the unmarked countersunk head male screw that has been fastened together, thereby reliably preventing a loosening operation by a third party.

以下、本発明の実施の形態につき、添付図面を参照しつつ、雌雄ネジ機構例及びこれに適用されるネジ回し例を挙げて詳細に説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings by giving examples of male and female screw mechanisms and screwdrivers applied thereto.

（雌雄ネジ機構例）
図１は、本発明の実施形態に係る雌雄ネジ機構例の構成図であり、特に、同図（ａ）は、同雌雄ネジ機構を構成する無刻印皿頭雄ネジの側面図且つ対応する雌ネジ穴の縦断面図、同図（ｂ）は、同雌ネジ穴をその開口受座面側から見た外観図、同図（ｃ）は、同無刻印皿頭雄ネジの有するネジ頭をその頂端面側から見た外観図、同図（ｄ）は、同ネジ頭をそのネジ座面側から見た外観図、及び同図（ｅ）は、同ネジ座面の一部拡大図である。 (Example of male and female screw mechanism)
FIG. 1 is a configuration diagram of an example of a male and female screw mechanism according to an embodiment of the present invention. In particular, FIG. 1 (a) is a side view of an unmarked countersunk male screw constituting the female and male screw mechanism and a corresponding female. The longitudinal cross-sectional view of the screw hole, the same figure (b), the external view which looked at the female screw hole from the opening seating surface side, the same figure (c), the screw head which the non-marking plate head male screw has. The external view seen from the top end surface side, the same figure (d) is the external view which looked at the screw head from the screw seat surface side, and the same figure (e) is a partially enlarged view of the screw seat surface. is there.

同図に示した本実施形態例に係る雌雄ネジ機構αは、加工部材Ａに空けられた例えば盲内端の雌ネジ穴１に、対応する無刻印皿頭雄ネジ２を螺合締結することで加工部材接合を達成する機構である。   The male / female screw mechanism α according to the present embodiment shown in the figure is configured such that a corresponding unmarked countersunk male screw 2 is screwed and fastened into, for example, the female screw hole 1 at the blind inner end formed in the processed member A. This is a mechanism that achieves workpiece joining.

加工部材Ａに空けられた雌ネジ穴１は、その内周面全長に亙り螺刻されたネジ胴体収容部１１と、ネジ胴体収容部１１とその受皿形開口部にて連接・一体化された開口受座面１２とに囲まれた、無刻印皿頭雄ネジ２と螺合締結するための空間である。   The female screw hole 1 formed in the processed member A is connected and integrated by a screw body housing portion 11 that is threaded over the entire inner circumferential surface, a screw body housing portion 11 and a saucer-shaped opening. A space surrounded by the opening seating surface 12 for screwing and fastening the unmarked countersunk male screw 2.

雌ネジ穴１を形成する開口受座面１２は、その外口周端縁に向けて拡径勾配となる傾斜角を有する側面円錐台状に成形されており、この開口受座面１２に、複数のＶ溝１３（図１（ｂ）では、４７本）がその外口周端縁に向けて放射直線状に延びるように彫り込まれている。   The opening seating surface 12 that forms the female screw hole 1 is formed in a side truncated cone shape having an inclination angle that increases in diameter toward the outer peripheral edge of the outer opening. A plurality of V grooves 13 (47 in FIG. 1B) are engraved so as to extend radially toward the outer peripheral edge of the outer opening.

なお、前述の効果を達成するには、そのようなＶ溝１３の代わりに、開口受座面１２の外口周端縁に向けて延設された（例えば、同外口周端縁に向けて蛇行状に延びる）如何なる溝も採用可能であるものの、製造工程の簡素化等に鑑みると、Ｖ溝１３のような簡単な形状が望ましかろう。以降の説明についても同様である。   In order to achieve the above-described effect, instead of the V-shaped groove 13, it extends toward the outer peripheral edge of the opening seating surface 12 (for example, toward the outer peripheral edge). Any groove (which extends in a meandering manner) can be used, but in view of simplification of the manufacturing process, a simple shape like the V-groove 13 would be desirable. The same applies to the following description.

一方、雌ネジ穴１に螺合締結される無刻印皿頭雄ネジ２は、主に、ネジ胴体収容部１１におけるネジ山の数や間隔等に対応するようにその外周面全長に亙り螺刻されたネジ胴体２１と、ネジ胴体２１一端と連接・一体化された皿状ネジ頭２２とで構成されている。   On the other hand, the unmarked countersunk male screw 2 screwed and fastened to the female screw hole 1 is mainly threaded over the entire outer peripheral surface so as to correspond to the number and interval of the threads in the screw body accommodating portion 11. And a countersunk screw head 22 connected to and integrated with one end of the screw body 21.

無刻印皿頭雄ネジ２を構成する皿状ネジ頭２２は、滑らかな頂端面２３と、雌ネジ穴１を形成する開口受座面１２におけるのと同程度の傾斜角に採られることにより、その頂端面外周縁側に向けて拡径勾配となった側面円錐台皿状のネジ座面２４とを有する。そして、このネジ座面２４に、開口受座面１２におけるよりも溝数が１本多い複数のＶ溝２５（図１（ｄ）では、４８本）をその頂端面外周縁に向けて放射直線状に延びるように彫り込んである。なお、図１（ｅ）は、図１（ｄ）における点線部分内を拡大図示している。   The countersunk screw head 22 constituting the unmarked countersunk male screw 2 has a smooth top end surface 23 and an inclination angle similar to that on the opening seating surface 12 forming the female screw hole 1, It has a screw seat surface 24 in the shape of a side truncated cone that has a diameter expansion gradient toward the outer peripheral edge side of the top end surface. A plurality of V grooves 25 (48 in FIG. 1 (d)) having one groove larger than that in the opening receiving surface 12 are formed on the screw seat surface 24 toward the outer peripheral edge of the top end surface. It is engraved to extend in a shape. In addition, FIG.1 (e) has expanded and shown the inside of the dotted-line part in FIG.1 (d).

ここで、雌ネジ穴１を形成する開口受座面１２と、ネジ頭２２のネジ座面２４との各面における傾斜角は、それぞれ、ネジ胴体２１の一部が雌ネジ穴２内に螺入された無刻印皿頭雄ネジ２が、ネジ座面２４の一部を開口受座面１２の一部に接触させつつ雌ネジ穴１の軸線方向（図２（ｂ）中の一点鎖線）について傾斜回転可能となる、数値に設定されている。雌ネジ穴１のネジ穴径及びネジ胴体１１のネジ径に関する各数値設定についても同様である。   Here, the inclination angle of each surface of the opening receiving surface 12 that forms the female screw hole 1 and the screw seat surface 24 of the screw head 22 is such that a part of the screw body 21 is screwed into the female screw hole 2. The inserted unmarked countersunk male screw 2 has a part of the screw seat surface 24 in contact with a part of the opening seating surface 12, and the axial direction of the female screw hole 1 (a chain line in FIG. 2B). Is set to a numerical value that enables tilt rotation. The same applies to each numerical value setting regarding the screw hole diameter of the female screw hole 1 and the screw diameter of the screw body 11.

なお、ネジ胴体２１の一部が雌ネジ穴２内に螺入された無刻印皿頭雄ネジ２が雌ネジ穴１の軸線方向について円滑に傾斜回転し得るように、ネジ胴体２１をその先端部に向けて漸次細くなるように成形しても良い。   It should be noted that the screw body 21 is connected to the tip thereof so that the unmarked countersunk male screw 2 in which a part of the screw body 21 is screwed into the female screw hole 2 can be smoothly inclined and rotated in the axial direction of the female screw hole 1. You may shape | mold so that it may become thin gradually toward a part.

また、前述の効果を達成するには、ネジ頭２２のネジ座面２４における溝数が、雌ネジ穴１を形成する開口受座面１２における溝数よりも多ければ良いが、製造工程の簡素化等に鑑みると、両者の差がなるべく小さい方（例えば、１本）が望ましかろう。なお、同効果を達成する範囲内において、開口受座面１２及びネジ座面２４の各面における溝数を任意に採れることは言うまでもない。   In order to achieve the above-described effect, the number of grooves in the screw seat surface 24 of the screw head 22 may be larger than the number of grooves in the opening seat surface 12 that forms the female screw hole 1, but the manufacturing process is simplified. In view of conversion, etc., it is desirable that the difference between the two is as small as possible (for example, one). Needless to say, the number of grooves on each surface of the opening seating surface 12 and the screw seating surface 24 can be arbitrarily selected within a range in which the same effect is achieved.

（ネジ回し例）
次に、図２を参照しつつ、以上のように構成された雌雄ネジ機構αに適用されるネジ回しβにつき説明する。
図２（ａ）〜（ｃ）は、同ネジ回しβの概略構成図且つこれを用いるネジ螺合締結作業の手順を示す工程図である。 (Example of screwdriver)
Next, the screwdriver β applied to the male and female screw mechanism α configured as described above will be described with reference to FIG.
2 (a) to 2 (c) are process diagrams showing a schematic configuration diagram of the screw driver β and a procedure of a screw screw fastening operation using the screw driver β.

同図に示したネジ回しβは、加工部材Ａに空けられた雌ネジ穴１に、対応する無刻印皿頭雄ネジ２を螺合締結することで加工部材接合を達成するために、把持部材３と、無刻印皿頭雄ネジ２のネジ頭２２に接触端面４１を接触押圧させつつ無刻印皿頭雄ネジ２をその螺合方向に従動回転可能とするように、回転シャフト５を介して把持部材３に回転可能に一体連結されたネジ頭接触作用部材４とで構成されている。   The screwdriver β shown in FIG. 2 is used to hold the processing member joint by screwing and fastening the corresponding unmarked countersunk male screw 2 into the female screw hole 1 formed in the processing member A. 3 and the rotating shaft 5 so that the unmarked countersunk head male screw 2 can be driven to rotate in the screwing direction while the contact end surface 41 is pressed against the screw head 22 of the unmarked countersunk head male screw 2. The screw head contact action member 4 is integrally connected to the grip member 3 so as to be rotatable.

ネジ回しβを構成する把持部材３内には、無刻印皿頭雄ネジ２を雌ネジ穴１に螺合締結する際に利用する回転トルクの発生源として、一般的な操作（例えば、スイッチ操作等）にて作動・停止の切換を行う汎用のアクチュエータ（不図示）が内蔵されている。   In the gripping member 3 constituting the screwdriver β, a general operation (for example, switch operation) is used as a source of rotational torque used when the unmarked countersunk male screw 2 is screwed into the female screw hole 1. Etc.), a general-purpose actuator (not shown) for switching between operation and stop is incorporated.

なお、把持部材３は、そのような構成を採用する代わりに、利用者の手動操作にて所望の回転トルクを発生させる機構的形態を有することとしてもよい。   Note that the gripping member 3 may have a mechanical form that generates a desired rotational torque by a user's manual operation instead of adopting such a configuration.

ネジ回しβを構成するネジ頭接触作用部材４の接触端面４１は、上述した傾斜回転が行われるときに、ネジ頭２２の頂端面２３が雌ネジ穴１の軸線方向に直交する平面、即ち、加工部材Ａの雌ネジ穴形成面となす角度と同程度の傾斜角を有する傾斜面に成形されている。   The contact end face 41 of the screw head contact acting member 4 constituting the screwdriver β is a plane in which the top end face 23 of the screw head 22 is orthogonal to the axial direction of the female screw hole 1 when the tilt rotation described above is performed, that is, The processed member A is formed into an inclined surface having an inclination angle similar to the angle formed with the female screw hole forming surface.

以上のように構成されたネジ回しβを用いると、雌雄ネジ機構αにおけるネジ螺合締結作業が以下の手順にて行われる。
先ず、図２（ａ）に示す状態にある雌雄ネジ機構αにおいて、ネジ頭２２のネジ座面２４が雌ネジ穴１を形成する開口受座面１２に接触するようになるまで、既存のネジ回し（例えば、非特許文献１に開示の圧電ネジ回し等）を用いて、無刻印皿頭雄ネジ２の雌ネジ穴１への螺入を進める。このようにする方が、ネジ回しβを用いる場合よりも、作業が効率良く進む。 When the screwdriver β configured as described above is used, the screw screw fastening operation in the male and female screw mechanism α is performed according to the following procedure.
First, in the male and female screw mechanism α in the state shown in FIG. 2A, the existing screw until the screw seat surface 24 of the screw head 22 comes into contact with the opening seat surface 12 that forms the female screw hole 1. Using a screwdriver (for example, a piezoelectric screwdriver disclosed in Non-Patent Document 1), the unmarked countersunk male screw 2 is screwed into the female screw hole 1. In this way, the work proceeds more efficiently than when the screwdriver β is used.

なお、互いに異なる傾斜角（「０°」を含む）が付与された接触端面４１を有する複数のネジ頭接触作用部材４を回転シャフト５に取付・取外可能とし、これらを状況に応じて使い分けることとすれば、一連のネジ螺合締結作業が１つのネジ回しで事足りる。   A plurality of screw head contact action members 4 having contact end surfaces 41 with different inclination angles (including “0 °”) can be attached to and detached from the rotary shaft 5, and these are properly used depending on the situation. If this is the case, a single screwdriver is sufficient for a series of screw screw fastening operations.

図２（ｂ）に示すように、無刻印皿頭雄ネジ２の雌ネジ穴１への螺入が進んで、無刻印皿頭雄ネジ２を構成するネジ頭２２のネジ座面２４が雌ネジ穴１を形成する開口受座面１２に接触するようになると、ネジ座面２４の溝数が開口受座面１２の溝数よりも１本多いので、ネジ座面２４に設けられた複数のＶ溝２５のうち、一部が開口受座面１２に設けられた一部のＶ溝１３と噛み合う一方、別の一部が開口受座面１２のＶ溝１３と噛み合えずに浮く。これにより、ネジ頭２２の頂端面２３が、雌ネジ穴１の軸線方向に垂直な平面、即ち、加工部材Ａの雌ネジ穴形成面に対して傾くこととなる。   As shown in FIG. 2 (b), the threaded surface 24 of the screw head 22 constituting the unmarked countersunk head male screw 2 is female. When coming into contact with the opening receiving surface 12 forming the screw hole 1, the number of grooves in the screw receiving surface 24 is one more than the number of grooves in the opening receiving surface 12. Among the V grooves 25, a part of the V groove 25 meshes with a part of the V groove 13 provided on the opening receiving surface 12, while another part floats without engaging with the V groove 13 of the opening receiving surface 12. As a result, the top end surface 23 of the screw head 22 is inclined with respect to a plane perpendicular to the axial direction of the female screw hole 1, that is, the female screw hole forming surface of the processed member A.

このような状態になったら、これまで用いてきた既存のネジ回しをネジ回しβに交換し、その把持部材３に所要の荷重を掛けてネジ頭接触作用部材４の接触端面４１をネジ頭２２の頂端面２３に接触押圧させつつ、ネジ回しβ側にて回転トルクを生起させる。   In such a state, the existing screwdriver used so far is screwed and replaced with β, a required load is applied to the gripping member 3, and the contact end surface 41 of the screw head contact acting member 4 is moved to the screw head 22. Rotating torque is generated on the β side while being pressed against the top end surface 23 of the screw.

このようにすれば、ネジ回しβ側で生起された回転トルクに由来する回転力が、ネジ頭２２の頂端面２３に沿ってではなく、同面２３に斜めから直接直角印加されるようになるから、頂端面２３とネジ頭接触作用部材４の接触端面４１との間にて「すべり」が発生したとしても、それに何ら影響されることなく、その回転トルクがネジ頭２２へ直ちに伝達される。また、このとき、雌ネジ穴１を形成する開口受座面１２における一部のＶ溝１３と、ネジ頭２２のネジ座面２４における一部のＶ溝２５とが互いに噛み合うので、これらが従来の刻印と同等に働くことで、回転トルクをネジ頭２２に伝達する一助となっている。   In this way, the rotational force derived from the rotational torque generated on the screw driver β side is applied directly to the same surface 23 at a right angle, not along the top end surface 23 of the screw head 22. Therefore, even if a “slip” occurs between the top end face 23 and the contact end face 41 of the screw head contact acting member 4, the rotational torque is immediately transmitted to the screw head 22 without being affected by it. . At this time, a part of the V-groove 13 in the opening seating surface 12 that forms the female screw hole 1 and a part of the V-groove 25 in the screw seating surface 24 of the screw head 22 mesh with each other. By working in the same manner as the engraving, the rotation torque is transmitted to the screw head 22.

これにより、ネジ胴体２１の一部が雌ネジ穴２内に螺入された無刻印皿頭雄ネジ２が、ネジ座面２４の一部を開口受座面１２の一部に接触させつつ雌ネジ穴１の軸線方向について傾斜回転することとなり、無刻印皿頭雄ネジ２の雌ネジ穴１への更なる螺入を進めることが可能となる。   Thus, the unmarked countersunk male screw 2 in which a part of the screw body 21 is screwed into the female screw hole 2 has a female part while contacting a part of the screw seat surface 24 with a part of the opening seat surface 12. It will be inclined and rotated about the axial direction of the screw hole 1, and it becomes possible to advance further screwing to the female screw hole 1 of the unmarked disc head male screw 2. FIG.

従って、ネジ回しβ側にて所望の回転トルクを発生させれば必ず高締結トルクが得られ、図２（ｃ）に示すように、無刻印皿頭雄ネジ２を雌ネジ穴１に短時間で螺合締結することが可能となる。また、それを可能とするには、以上説明した簡単な構成及び単純な作業手順を採用するだけで良い。   Therefore, if a desired rotational torque is generated on the side of the screwdriver β, a high fastening torque is always obtained. As shown in FIG. 2 (c), the unmarked countersunk male screw 2 is inserted into the female screw hole 1 for a short time. And can be screwed together. In order to make it possible, it is only necessary to adopt the simple configuration and the simple work procedure described above.

また、そもそも無刻印皿頭雄ネジ２を採用していることから、美観性に優れると共に、加工部材Ａの雌ネジ穴形成部位を壊すなどしない限り、雌ネジ穴１に螺合締結された無刻印皿頭雄ネジ２を緩めたり、取り外したりすることが不可能であることから、第三者による緩め操作を確実に防止する。   In addition, since the unmarked countersunk male screw 2 is used in the first place, it is excellent in aesthetics and is not screwed and fastened to the female screw hole 1 unless the female screw hole forming portion of the processed member A is broken. Since it is impossible to loosen or remove the engraved countersunk male screw 2, a loosening operation by a third party is surely prevented.

以上、本発明の実施の形態について説明したが、本発明は、必ずしも上述した手段にのみ限定されるものではなく、前述した効果を有する範囲内において、適宜、変更実施することが可能なものである。   Although the embodiments of the present invention have been described above, the present invention is not necessarily limited to the above-described means, and can be appropriately modified within the scope of the above-described effects. is there.

本発明の実施形態に係る雌雄ネジ機構例の構成図であり、特に、同図（ａ）は、同雌雄ネジ機構を構成する無刻印皿頭雄ネジの側面図且つ対応する雌ネジ穴の縦断面図、同図（ｂ）は、同雌ネジ穴をその開口受座面側から見た外観図、同図（ｃ）は、同無刻印皿頭雄ネジの有するネジ頭をその頂端面側から見た外観図、同図（ｄ）は、同ネジ頭をそのネジ座面側から見た外観図、及び同図（ｅ）は、同ネジ座面の一部拡大図である。It is a block diagram of the example of the male and female screw mechanism which concerns on embodiment of this invention, and especially the same figure (a) is a side view of the unmarked countersunk male screw which comprises the female and male screw mechanism, and a vertical section of a corresponding female screw hole Fig. 2B is an external view of the female screw hole viewed from the opening seating surface side, and Fig. 3C is a top view of the screw head of the unmarked countersunk male screw. (D) is an external view of the screw head viewed from the screw seat surface side, and FIG. (E) is a partially enlarged view of the screw seat surface. （ａ）〜（ｃ）は、図１の雌雄ネジ機構に適用されるネジ回しの概略構成図且つこれを用いるネジ螺合締結作業の手順を示す工程図である。(A)-(c) is a process block diagram which shows the schematic block diagram of the screwdriver applied to the male-female screw mechanism of FIG. 1, and the procedure of the screwing fastening operation | work using this.

符号の説明Explanation of symbols

α・・・雌雄ネジ機構
β・・・ネジ回し
１・・・雌ネジ穴
１１・・・ネジ胴体収容部
１２・・・開口受座面
１３，２５・・・Ｖ溝
２・・・無刻印皿頭雄ネジ
２１・・・ネジ胴体
２２・・・ネジ頭
２３・・・頂端面
２４・・・ネジ座面
３・・・把持部材
４・・・ネジ頭接触作用部材
４１・・・接触端面
５・・・回転シャフト
Ａ・・・加工部材 α ... Female and male screw mechanism β ... Screwdriver 1 ... Female screw hole 11 ... Screw body housing part 12 ... Opening seating surface 13, 25 ... V-groove 2 ... Unmarked Countersunk male screw 21 ... Screw body 22 ... Screw head 23 ... Top end surface 24 ... Screw seat surface 3 ... Holding member 4 ... Screw head contact acting member 41 ... Contact end surface 5 ... Rotating shaft A ... Working member

Claims (8)

加工部材に空けられた雌ネジ穴に、対応する無刻印皿頭雄ネジを螺合締結することで加工部材間の接合を達成する雌雄ネジ機構であって、
前記雌ネジ穴を形成する開口受座面に、
複数の溝が外口周端縁に向けて延設されており、
前記無刻印皿頭雄ネジは、
滑らかな頂端面と、前記開口受座面におけるよりも溝数の多い複数の溝が頂端面外周縁に向けて延設されたネジ座面と、を有するネジ頭と、
外周面長手方向に亙り螺刻されたネジ胴体と、
を具備する、
ことを特徴とする雌雄ネジ機構。 A male and female screw mechanism that achieves joining between processing members by screwing and fastening a corresponding non-engraved countersunk male screw to a female screw hole formed in the processing member,
On the opening seating surface forming the female screw hole,
A plurality of grooves are extended toward the outer edge edge,
The unmarked countersunk male screw is
A screw head having a smooth top end surface and a screw seat surface in which a plurality of grooves having a larger number of grooves than in the opening seating surface extend toward the outer periphery of the top end surface;
A screw body that is wound in the longitudinal direction of the outer peripheral surface;
Comprising
A male and female screw mechanism characterized by that. 前記雌ネジ穴を形成する前記開口受座面及び前記ネジ頭の前記ネジ座面は、それぞれ、
前記ネジ胴体の一部が前記雌ネジ穴内に螺入された前記無刻印皿頭雄ネジが、前記ネジ座面の一部を前記開口受座面の一部に接触させつつ前記雌ネジ穴の軸線方向について傾斜回転可能となる、
テーパ面を有するように成形されている、
ことを特徴とする請求項１に記載の雌雄ネジ機構。 The opening seating surface that forms the female screw hole and the screw seating surface of the screw head,
The unmarked countersunk male screw, in which a part of the screw body is screwed into the female screw hole, has a part of the screw seat surface in contact with a part of the opening seat surface. It can be tilted and rotated in the axial direction.
Molded with a tapered surface,
The male / female screw mechanism according to claim 1. 前記ネジ頭の前記ネジ座面における溝数は、
前記雌ネジ穴を形成する前記開口受座面における溝数よりも１本多く採られている、
ことを特徴とする請求項１又は２に記載の雌雄ネジ機構。 The number of grooves in the screw seat surface of the screw head is
One more than the number of grooves in the opening seating surface forming the female screw hole is taken,
The male and female screw mechanism according to claim 1 or 2. 前記ネジ頭の前記ネジ座面及び前記雌ネジ穴を形成する前記開口受座面における前記溝は、
Ｖ溝である、
ことを特徴とする請求項１、２又は３に記載の雌雄ネジ機構。 The groove in the opening seat surface forming the screw seat surface of the screw head and the female screw hole,
V groove,
The female and male screw mechanism according to claim 1, 2, or 3. 前記ネジ胴体は、
その先端部に向けて漸次細くなるように成形されている、
ことを特徴とする請求項１、２、３又は４に記載の雌雄ネジ機構。 The screw body is
It is shaped to become gradually thinner toward its tip,
The male / female screw mechanism according to claim 1, 2, 3 or 4. 前記請求項１、２、３、４又は５に記載の雌雄ネジ機構における前記開口受座面に複数の前記溝を延設して加工部材に空ける前記雌ネジ穴に、滑らかな前記頂端面と、複数の前記溝を延設した前記ネジ座面とを形成する前記ネジ頭を有する前記無刻印皿頭雄ネジを螺合締結するのに用いるネジ回しであって、
把持部材と、
前記無刻印皿頭雄ネジの前記ネジ頭頂端面に直接接触押圧する接触端面を形成し且つ当該無刻印皿頭雄ネジをその螺合方向に従動回転可能に作用するネジ頭接触作用部材と、
を備える、
ことを特徴とするネジ回し。 In the female and male screw mechanism according to claim 1, 2, 3, 4, or 5, the plurality of grooves are extended in the opening seating surface, and the female screw hole that is formed in the processing member has a smooth top end surface. A screwdriver used for screwing and fastening the non-engraved countersunk male screw having the screw head that forms the screw seat surface with a plurality of the grooves extending;
A gripping member;
A screw head contact action member that forms a contact end face that directly contacts and presses the screw head top end face of the unmarked countersunk male screw and acts so that the unmarked countersunk male screw is driven to rotate in the screwing direction;
Comprising
A screwdriver characterized by that. 前記ネジ頭接触作用部材の前記接触端面は、
前記ネジ胴体の一部が前記雌ネジ穴内に螺入された前記無刻印皿頭雄ネジが、前記ネジ頭の前記ネジ座面の一部を当該雌ネジ穴を形成する前記開口受座面の一部に接触させつつ当該雌ネジ穴の軸線方向について傾斜回転するときに、前記ネジ頭の前記頂端面が当該軸線方向に直交する平面となす角度と同程度の傾斜角の傾斜面を、
有するように成形されている、
ことを特徴とする請求項６に記載のネジ回し。 The contact end face of the screw head contact acting member is
The unmarked countersunk male screw, in which a part of the screw body is screwed into the female screw hole, has a part of the screw seat surface of the screw head that forms the female screw hole. When tilting and rotating in the axial direction of the female screw hole while being in contact with a part, an inclined surface having an inclination angle similar to the angle formed by the top end surface of the screw head and a plane perpendicular to the axial direction,
Is shaped to have,
The screwdriver according to claim 6. 前記把持部材は、
回転トルク発生源としてアクチュエータを内蔵する、
ことを特徴とする請求項６又は７に記載のネジ回し。 The gripping member is
Built-in actuator as a source of rotational torque
The screwdriver according to claim 6 or 7, characterized in that.
JP2005034745A 2005-02-10 2005-02-10 Male and female screw mechanism and screwdriver Expired - Fee Related JP4519672B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7798757B2 (en) * 2004-01-21 2010-09-21 Nippon Telegraph And Telephone Corporation Screw driving device and screw
CN103277390A (en) * 2013-06-14 2013-09-04 苏州柏德纳科技有限公司 Fastening nut
WO2016063431A1 (en) * 2014-10-22 2016-04-28 株式会社ＮｅｊｉＬａｗ Fastener, fastening structure for fastener, hinge structure, and male fastener
CN111911517A (en) * 2019-05-10 2020-11-10 波音公司 Fastener and method of making and using same

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US7798757B2 (en) * 2004-01-21 2010-09-21 Nippon Telegraph And Telephone Corporation Screw driving device and screw
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CN111911517A (en) * 2019-05-10 2020-11-10 波音公司 Fastener and method of making and using same

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