JP2005273702A - Fastening structure for screw - Google Patents

Fastening structure for screw Download PDF

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JP2005273702A
JP2005273702A JP2004084688A JP2004084688A JP2005273702A JP 2005273702 A JP2005273702 A JP 2005273702A JP 2004084688 A JP2004084688 A JP 2004084688A JP 2004084688 A JP2004084688 A JP 2004084688A JP 2005273702 A JP2005273702 A JP 2005273702A
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screw
mounting member
protrusion
fastening structure
fitting portion
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Yoshiiku Negishi
良育 根岸
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Hitachi Ltd
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Hitachi Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fastening structure for a screw capable of preventing a screw from loosening without damaging a surface of the attachment member irrespective of material of the attachment member. <P>SOLUTION: This fastening structure for the screw 1 is for threadedly engaging a shank part 1b having spiral cut formed of the screw 1 with the attachment members 2, 3. A head part 1a of the screw 1 is provided with a projection part 12 and the attachment part 2 is provided with a dented engagement part 4 in which the projection part enters. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、ネジの緩みを防止できる手段を備えたネジの締結構造に関する。   The present invention relates to a screw fastening structure including means capable of preventing loosening of a screw.

この種のネジの締結構造として、ワッシャ、ダブルナット、ネジロック液等を使用するものがあるが、部品点数が増加したり、組み付け工数が増加したりする。このような不都合を有さない従来のネジの締結構造として、特許文献１に開示されたものがある。   As a fastening structure of this type of screw, there is one using a washer, a double nut, a screw lock liquid, etc., but the number of parts increases and the number of assembling steps increases. As a conventional screw fastening structure that does not have such inconvenience, there is one disclosed in Patent Document 1.

上記文献のネジの締結構造は、図５に示すように、ネジ１００と、このネジ１００により組み付けられる２つの取付部材１０１，１０２とから構成されている。ネジ１００は、ドライバーからの回転力を受ける頭部１００ａと、この頭部１００ａに一体に形成され、外周面に螺旋切り込みが形成されたシャンク部（軸部）１００ｂとから成り、頭部１００ａの座面１００ｃに突起部１０３が設けられている。   As shown in FIG. 5, the screw fastening structure of the above document is composed of a screw 100 and two attachment members 101 and 102 assembled by the screw 100. The screw 100 includes a head portion 100a that receives rotational force from a driver, and a shank portion (shaft portion) 100b that is integrally formed with the head portion 100a and that has a spiral cut formed on the outer peripheral surface thereof. A protrusion 103 is provided on the seating surface 100c.

積層された２つの取付部材１０１，１０２の上方の取付部材１０１にはネジ挿通孔１０１ａが形成され、このネジ挿通孔１０１ａにネジ１００のシャンク部１００ｂが挿通されている。上方の取付部材１０１の表面にはネジ１００の頭部１００ａの座面１００ｃが当接されている。下方に積層配置された取付部材１０２にはネジ孔１０２ａが形成され、このネジ孔１０２ａにネジ１００のシャンク部１００ｂが螺合されている。   A screw insertion hole 101a is formed in the attachment member 101 above the two stacked attachment members 101, 102, and a shank portion 100b of the screw 100 is inserted into the screw insertion hole 101a. The seating surface 100c of the head 100a of the screw 100 is in contact with the surface of the upper mounting member 101. A screw hole 102a is formed in the mounting member 102 arranged in a lower layer, and a shank portion 100b of the screw 100 is screwed into the screw hole 102a.

次に、ネジ１００の締結作業を説明する。ネジ１００のシャンク部１００ｂを上方の取付部材１０１のネジ挿通孔１０１ａ内に挿入し、ネジ１００を締め付け方向に回転すると、ネジ１００のシャンク部１００ｂが徐々に下方の取付部材１０２のネジ孔１０２ａ内に螺合し、ネジ１００の突起部１０３が上方の取付部材１０１の表面に当接する。この位置よりも更にネジ１００を締め付け方向に回転すると、シャンク部１００ｂが更に下方の取付部材１０２内に螺合し、突起部１０３が上方の取付部材１０１の表面に食い込む。   Next, the fastening operation of the screw 100 will be described. When the shank portion 100b of the screw 100 is inserted into the screw insertion hole 101a of the upper mounting member 101 and the screw 100 is rotated in the tightening direction, the shank portion 100b of the screw 100 gradually moves into the screw hole 102a of the lower mounting member 102. And the protruding portion 103 of the screw 100 comes into contact with the surface of the upper mounting member 101. When the screw 100 is further rotated in the tightening direction from this position, the shank portion 100b is further screwed into the lower mounting member 102, and the protrusion 103 bites into the surface of the upper mounting member 101.

このようにネジ１００の突起部１０３が上方の取付部材１０１に食い込むことにより、何らかの理由によってネジ１００に緩み方向（締め付け方向の逆方向）の回転力が作用してもネジ１００が容易に緩むことがない。
特開平８−８２３１６号公報 Thus, when the protrusion 103 of the screw 100 bites into the upper mounting member 101, the screw 100 is easily loosened even if a rotational force in the loosening direction (reverse direction of the tightening direction) acts on the screw 100 for some reason. There is no.
JP-A-8-82316

しかしながら、前記従来のネジ１００の締結構造では、ネジ１００の突起部１０３によって取付部材１０１に対する摩擦抵抗を増大させたものであるため、上方の取付部材１０１の材質によって緩み防止力が左右される。つまり、上方の取付部材１０１の材質が軟らかい場合にはネジ１００の突起部１０３が取付部材１０１に大きく食い込むが、取付部材１０１の材質が硬い場合には、ネジ１００の突起部１０３が取付部材１０１にほとんど食い込まないため、摩擦抵抗を大きくすることが出来ず、緩み防止効果があまり期待できないという問題があった。   However, in the conventional fastening structure of the screw 100, the friction resistance against the mounting member 101 is increased by the protrusion 103 of the screw 100, and therefore the loosening prevention force depends on the material of the upper mounting member 101. That is, when the material of the upper mounting member 101 is soft, the protrusion 103 of the screw 100 greatly bites into the mounting member 101, but when the material of the mounting member 101 is hard, the protrusion 103 of the screw 100 is fixed to the mounting member 101. However, the frictional resistance cannot be increased, and the effect of preventing loosening cannot be expected.

また、上方の取付部材１０１の材質が軟らかい場合には、突起部１０３によって取付部材１０１の表面を容易に損傷する可能性があった。上方の取付部材１０１の表面にコーティング層１０１ｂがある場合には、コーティング層１０１ｂが剥がれる等の不具合が発生した。   Further, when the material of the upper mounting member 101 is soft, the protrusion 103 may easily damage the surface of the mounting member 101. When the coating layer 101b is present on the surface of the upper mounting member 101, problems such as peeling off of the coating layer 101b occurred.

本発明は前述した事情に鑑みてなされたものであり、本発明の目的は、取付部材の材質に係わらず、しかも、取付部材の表面を損傷することなくネジの緩みを防止できるネジの締結構造を提供することにある。   The present invention has been made in view of the circumstances described above, and an object of the present invention is a screw fastening structure that can prevent loosening of the screw without damaging the surface of the mounting member, regardless of the material of the mounting member. Is to provide.

上記の目的を達成するために、請求項１に記載の発明は、ネジの螺旋切り込みが形成されたシャンク部を取付部材に螺合するネジの締結構造であって、前記ネジの頭部と前記取付部材とのいずれか一方に凸状の突起部を、他方に前記突起部が入り込む凹状の嵌合部を、それぞれ設けたことを趣旨とする。   In order to achieve the above object, the invention according to claim 1 is a screw fastening structure in which a shank portion in which a screw thread is formed is screwed to an attachment member, the screw head and the screw The purpose is to provide a convex protrusion on one of the attachment members, and a concave fitting part into which the protrusion enters the other.

また、請求項２に記載の発明は、請求項１に記載のネジの締結構造において、前記突起部と前記嵌合部は、互いに同一形状で、且つ、ネジの締め付け方向の後端面がほぼ垂直な面に形成された構成としている。   According to a second aspect of the present invention, in the screw fastening structure according to the first aspect, the protrusion and the fitting portion have the same shape, and the rear end surface of the screw tightening direction is substantially vertical. The structure is formed on a flat surface.

請求項１の発明によれば、ネジの締結状態では凸状の突起部が凹状の嵌合部に入り込むため、凸状の突起部が凹状の嵌合部を抜け出る以上の大きなネジ緩み方向の回転力が作用しない限りネジが緩むことがない。また、凸状の突起部が取付部材の表面に食い込まないため、取付部材の表面を損傷することもない。   According to the first aspect of the present invention, since the convex protrusion enters the concave fitting portion in the tightened state of the screw, the rotation in the direction of loosening the screw is larger than the convex protrusion protrudes from the concave fitting portion. The screw will not loosen unless force is applied. Further, since the convex protrusion does not bite into the surface of the mounting member, the surface of the mounting member is not damaged.

請求項２の発明によれば、ネジ緩み方向の回転力が作用すると、突起部と嵌合部の互いのほぼ垂直な後端面同士が当接して当該回転力に対向するため、非常に大きな回転力が作用しない限りネジが緩むことがない。   According to the invention of claim 2, when a rotational force in the screw loosening direction acts, the substantially vertical rear end surfaces of the protrusion and the fitting portion come into contact with each other and face the rotational force. The screw will not loosen unless force is applied.

以下、本発明を具現化した一実施形態について図面を参照して説明する。   Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings.

図１〜図４は本発明のネジの締結構造の一実施形態を示し、図１はネジを締結する前の断面図、図２はネジの正面図、図３は取付部材の平面図、図４はネジを締結した状態の断面図である。   1 to 4 show an embodiment of a screw fastening structure according to the present invention, FIG. 1 is a sectional view before fastening the screw, FIG. 2 is a front view of the screw, FIG. 3 is a plan view of a mounting member, and FIG. 4 is a cross-sectional view of a state in which a screw is fastened.

図１〜図４において、ネジの締結構造は、ネジ１と、このネジ１により組み付けされる２つの取付部材２，３とから構成されている。ネジ１は、略半球状の頭部１ａと、この頭部１ａの座面１０の中心部より一体形成されたシャンク部（軸部）１ｂとから構成されている。頭部１ａにはドライバー等の締結工具が係合する十字状の係合溝１１が形成されている。シャンク部１ｂの円周面には螺旋切り込みが形成されている。また、頭部１ａの座面１０には１８０度対向位置に凸状の突起部１２がそれぞれ設けられている。この各突起部１２は、ネジ１の締め付け方向Ｔの先端から後端に向かって徐々に高さが高くなる傾斜面１２ａを有すると共にネジ１の締め付け方向Ｔの後端面１２ｂがほぼ垂直な面に形成されている。   1 to 4, the screw fastening structure includes a screw 1 and two attachment members 2 and 3 assembled by the screw 1. The screw 1 is composed of a substantially hemispherical head 1a and a shank (shaft) 1b integrally formed from the center of the seating surface 10 of the head 1a. A cross-shaped engaging groove 11 with which a fastening tool such as a screwdriver is engaged is formed in the head 1a. A spiral cut is formed on the circumferential surface of the shank portion 1b. Moreover, the convex part 12 is provided in the seat surface 10 of the head 1a at the 180 degree | times opposing position, respectively. Each protrusion 12 has an inclined surface 12a whose height gradually increases from the front end to the rear end in the tightening direction T of the screw 1 and the rear end surface 12b in the tightening direction T of the screw 1 is substantially vertical. Is formed.

一方、２つの積層された取付部材２，３には、同じ位置にネジ孔２ａ，３ａがそれぞれ形成されている。上方の取付部材２のネジ孔２ａの周囲には、上記突起部１２の回転軌跡上に沿って多数の凹状の嵌合部４が等間隔に形成されている。各嵌合部４は、突起部１２と同一形状を有し、ネジ１の締め付け方向Ｔの先端から後端に向かって徐々に深さが深くなる傾斜面４ａを有すると共に、ネジ１の締め付け方向Ｔの後端面４ｂがほぼ垂直な面に形成されている。   On the other hand, screw holes 2a and 3a are formed at the same position in the two stacked mounting members 2 and 3, respectively. Around the screw hole 2 a of the upper mounting member 2, a large number of concave fitting portions 4 are formed at equal intervals along the rotation locus of the protruding portion 12. Each fitting portion 4 has the same shape as the protruding portion 12, has an inclined surface 4 a that gradually increases in depth from the front end to the rear end in the tightening direction T of the screw 1, and the tightening direction of the screw 1. The rear end surface 4b of T is formed in a substantially vertical surface.

次に、ネジ１の締結作業を説明する。ネジ１のシャンク部１ｂを積層した２つの取付部材２，３のネジ孔２ａ，３ａの位置に合わせ、ネジ１を締め付け方向Ｔに回転すると、ネジ１のシャンク部１ｂが徐々に取付部材２，３のネジ孔２ａ，３ａに螺合し、ネジ１の凸状の突起部１２が取付部材２の表面に当接する。この位置よりも更にネジ１を締め付け方向Ｔに回転すると、シャンク部１ｂが更に取付部材２，３内に螺合し、凸状の突起部１２が凹状の嵌合部４に入り込む。ネジ１を更に締め付け方向Ｔに回転すると、凸状の突起部１２が凹状の嵌合部４を抜け出してネジ締め付け方向Ｔの前方の嵌合部４に順次入り込む。そして、ネジ１の締め付け方向Ｔの回転を停止すると、凸状の突起部１２が最後に入り込んだ凹状の嵌合部４内に位置する。   Next, the fastening operation of the screw 1 will be described. When the screw 1 is rotated in the tightening direction T in accordance with the positions of the screw holes 2a and 3a of the two mounting members 2 and 3 in which the shank portions 1b of the screw 1 are stacked, the shank portion 1b of the screw 1 gradually becomes the mounting member 2 and 2a. 3, and the protruding protrusion 12 of the screw 1 comes into contact with the surface of the mounting member 2. When the screw 1 is further rotated in the tightening direction T from this position, the shank portion 1b is further screwed into the mounting members 2 and 3, and the convex protrusion 12 enters the concave fitting portion 4. When the screw 1 is further rotated in the tightening direction T, the convex protrusion 12 exits the concave fitting portion 4 and sequentially enters the front fitting portion 4 in the screw tightening direction T. Then, when the rotation of the screw 1 in the tightening direction T is stopped, the convex protrusion 12 is located in the concave fitting portion 4 that has entered last.

以上、上記したネジ１の締結構造では、ネジ１の凸状の突起部１２が取付部材２の凹状の嵌合部４に入り込んでいる。そのため、何らかの理由によりネジ緩み方向（締め付け方向Ｔの逆方向）に回転力が作用すると、凸状の突起部１２と凹状の嵌合部４の互いの面同士が当接することによって当該回転力を受けるため、突起部１２が嵌合部４を抜け出す以上の大きな回転力が作用しない限りネジ１が緩むことがない。また、突起部１２が上方の取付部材２の表面に食い込まないため、上方の取付部材２の表面を損傷することもない。つまり、上方の取付部材２の表面がコーティングされている場合には、そのコーティング層が剥がれるという不都合もない。以上より、取付部材２の材質に係わらず、しかも、取付部材２の表面を損傷することなくネジ１の緩みを防止できる。   As described above, in the fastening structure of the screw 1 described above, the convex protrusion 12 of the screw 1 enters the concave fitting portion 4 of the mounting member 2. Therefore, when a rotational force acts in the screw loosening direction (the reverse direction of the tightening direction T) for some reason, the rotational force is reduced by the contact between the surfaces of the convex protrusion 12 and the concave fitting portion 4. Therefore, the screw 1 is not loosened unless a large rotational force larger than the protrusion 12 exits the fitting portion 4 is applied. Further, since the protrusion 12 does not bite into the surface of the upper mounting member 2, the surface of the upper mounting member 2 is not damaged. That is, when the surface of the upper mounting member 2 is coated, there is no inconvenience that the coating layer is peeled off. As described above, the looseness of the screw 1 can be prevented regardless of the material of the mounting member 2 and without damaging the surface of the mounting member 2.

特に、上記実施形態では、凸状の突起部１２と凹状の嵌合部４は、互いに同一形状で、且つ、ネジ１の締め付け方向Ｔの後端面１２ｂ，４ｂがほぼ垂直な面に形成されているので、ネジ緩み方向の回転力が作用すると、凸状の突起部１２と凹状の嵌合部４の互いのほぼ垂直な後端面１２ｂ，４ｂ同士が当接して当該回転力に対向するため、非常に大きな回転力が作用しない限りネジ１が緩むことがない。   In particular, in the above embodiment, the convex protrusion 12 and the concave fitting portion 4 have the same shape as each other, and the rear end surfaces 12b and 4b of the tightening direction T of the screw 1 are formed on substantially vertical surfaces. Therefore, when a rotational force in the screw loosening direction acts, the substantially vertical rear end surfaces 12b, 4b of the convex protrusion 12 and the concave fitting portion 4 come into contact with each other and face the rotational force. The screw 1 is not loosened unless a very large rotational force is applied.

上記実施形態では、凸状の突起部１２はネジ１の頭部１ａに、凹状の嵌合部４は取付部材２に、それぞれ設けた。この構成によれば、凸状の突起部１２を取付部材２に、凹状の嵌合部４をネジ１の頭部１ａに、それぞれ形成する場合に比べて製造作業が容易である。   In the above embodiment, the convex protrusion 12 is provided on the head 1 a of the screw 1, and the concave fitting portion 4 is provided on the attachment member 2. According to this configuration, the manufacturing operation is easier than in the case where the convex protrusion 12 is formed on the mounting member 2 and the concave fitting portion 4 is formed on the head 1 a of the screw 1.

上記実施形態では、突起部１２と嵌合部４は、ネジ１の締め付け方向Ｔの先端から後端に向かって徐々に高さが高くなる傾斜面１２ａ，４ａに形成されているので、ネジ１の締め付け時におけるネジ１と取付部材２間の回転阻止力が弱く、締め付け作業が容易である。   In the above embodiment, the protrusion 12 and the fitting portion 4 are formed on the inclined surfaces 12 a and 4 a that gradually increase in height from the front end to the rear end in the tightening direction T of the screw 1. The rotation prevention force between the screw 1 and the mounting member 2 during tightening is weak, and the tightening operation is easy.

上記実施形態では、凹状の嵌合部４は、凸状の突起部１２の回転軌跡上に沿って多数配置されているので、締め付け力の微細な調整が可能である。尚、微細な調整が必要性ない場合には、嵌合部４は突起部１２と同じ数を同じ配置位置で取付部材２に設ければ良い。   In the above-described embodiment, a large number of the concave fitting portions 4 are arranged along the rotation trajectory of the convex protrusion 12, so that the tightening force can be finely adjusted. If fine adjustment is not necessary, the fitting portion 4 may be provided on the mounting member 2 in the same arrangement position as the projection portion 12.

尚、この発明は、次のような別の実施形態に具現化することができる。以下の別の実施形態において上記実施形態と同様な作用及び効果を得ることができる。   The present invention can be embodied in another embodiment as follows. In the following other embodiments, the same operations and effects as those of the above embodiment can be obtained.

（１）上記実施形態において、ネジ１の頭部１ａに凸状の突起部１２を、取付部材２に凹状の嵌合部４を、それぞれ設ける構成とした。この構成とは逆に、取付部材２に凸状の突起部１２を、ネジ１の頭部１ａに凹状の嵌合部４を、それぞれ設ける構成としても良い。このような構成とすることにより、上記実施形態と同様な効果が得られる。   (1) In the said embodiment, it was set as the structure which provides the convex projection part 12 in the head 1a of the screw 1, and the concave fitting part 4 in the attachment member 2, respectively. Contrary to this configuration, a convex protrusion 12 may be provided on the mounting member 2, and a concave fitting portion 4 may be provided on the head 1 a of the screw 1. By adopting such a configuration, the same effect as the above embodiment can be obtained.

（２）上記実施形態において、凸状の突起部１２及び凹状の嵌合部４は略台形の形状を有する構成とした。これに対し、突起部１２及び嵌合部４は半球状、長球状、四角形等の形状に構成しても良い。このような構成とすることにより、上記実施形態と同様な効果が得られる。   (2) In the above embodiment, the convex protrusion 12 and the concave fitting portion 4 have a substantially trapezoidal shape. On the other hand, the projecting portion 12 and the fitting portion 4 may be configured in a hemispherical shape, an oval shape, a quadrangular shape, or the like. By adopting such a configuration, the same effect as the above embodiment can be obtained.

（３）上記実施形態において、凸状の突起部１２はネジ１の頭部１ａの座面１０に設けた。これに対し、凸状の突起部１２を頭部１ａの座面１０以外の面から延設して設けても良い。このような構成とすることにより、上記実施形態と同様な効果が得られる。   (3) In the above embodiment, the convex protrusion 12 is provided on the seat surface 10 of the head 1 a of the screw 1. On the other hand, you may provide the convex-shaped projection part 12 extending from surfaces other than the seat surface 10 of the head 1a. By adopting such a configuration, the same effect as the above embodiment can be obtained.

（４）上記実施形態において、凸状の突起部１２は、１８０度対向位置の２箇所に設ける構成とした。これに対し、凸状の突起部１２は１箇所でも、３箇所以上でも良い。   (4) In the said embodiment, it was set as the structure which provided the convex-shaped projection part 12 in two places of a 180 degree | times opposing position. On the other hand, the convex protrusion 12 may be one place or three places or more.

（５）上記実施形態において、ネジ１は袋ネジであるが、貫通ネジであっても良いことは勿論である。   (5) In the above embodiment, the screw 1 is a cap screw, but it goes without saying that it may be a through screw.

さらに、上記実施形態から把握し得る請求項以外の技術思想について、以下にその効果と共に記載する。   Further, technical ideas other than the claims that can be grasped from the above embodiment will be described together with the effects thereof.

（イ）請求項１又は請求項２に記載のネジの締結構造において、前記突起部はネジの頭部に、前記嵌合部は取付部材に、それぞれ設けたことを特徴とするネジの締結構造。   (A) The screw fastening structure according to claim 1 or 2, wherein the protrusion is provided on a screw head and the fitting portion is provided on an attachment member. .

この構成によれば、突起部を取付部材に、嵌合部をネジの頭部に、それぞれ形成する場合に比べて製造作業が容易である。   According to this configuration, the manufacturing operation is easier than in the case where the protrusion is formed on the mounting member and the fitting portion is formed on the screw head.

（ロ）請求項１又は請求項２又は上記（イ）項に記載のネジの締結構造において、前記突起部と前記嵌合部は、ネジの締め付け方向の先端から後端に向かって徐々に高さが高くなる傾斜面に形成されたことを特徴とするネジの締結構造。   (B) In the screw fastening structure according to claim 1, claim 2, or (a), the protrusion and the fitting portion are gradually increased from the front end to the rear end in the screw tightening direction. A screw fastening structure, characterized in that the screw fastening structure is formed on an inclined surface with increased height.

この構成によれば、ネジの締め付け時におけるネジと取付部材間の回転抵抗が減り、締め付け作業が容易になる。   According to this configuration, the rotational resistance between the screw and the mounting member at the time of tightening the screw is reduced, and the tightening operation is facilitated.

（ハ）請求項１又は請求項２又は上記（イ）又は上記（ロ）項に記載のネジの締結構造において、凹状の嵌合部は、凸状の突起部の回転軌跡上に沿って多数配置されたことを特徴とするネジの締結構造。   (C) In the screw fastening structure according to claim 1, claim 2, or (i) or (b) above, a large number of concave fitting portions are provided along the rotation trajectory of the convex protrusions. A screw fastening structure characterized by being arranged.

この構成によれば、締め付け力の微細な調整が可能である。   According to this configuration, fine adjustment of the tightening force is possible.

本発明の一実施形態を示し、ネジを締結する前の断面図である。It is sectional drawing which shows one Embodiment of this invention and fastens a screw | thread. 本発明の一実施形態を示し、ネジの正面図である。1 shows an embodiment of the present invention and is a front view of a screw. FIG. 本発明の一実施形態を示し、取付部材の平面図である。1 is a plan view of an attachment member according to an embodiment of the present invention. 本発明の一実施形態を示し、ネジを締結した状態の断面図である。It is sectional drawing of the state which showed one Embodiment of this invention and fastened the screw | thread. 従来例のネジの締結構造の断面図である。It is sectional drawing of the fastening structure of the screw of a prior art example.

符号の説明Explanation of symbols

１ ネジ
１ａ 頭部
１ｂ シャンク部
２，３ 取付部材
４ 凹状の嵌合部
４ａ 傾斜面
４ｂ 後端面
１２ 凸状の突起部
１２ａ 傾斜面
１２ｂ 後端面
Ｔ ネジ締め付け方向 DESCRIPTION OF SYMBOLS 1 Screw 1a Head 1b Shank part 2,3 Mounting member 4 Concave fitting part 4a Inclined surface 4b Rear end surface 12 Convex protrusion 12a Inclined surface 12b Rear end surface T Screw tightening direction

Claims (2)

ネジの螺旋切り込みが形成されたシャンク部を取付部材に螺合するネジの締結構造であって、
前記ネジの頭部と前記取付部材とのいずれか一方に凸状の突起部を、他方に前記突起部が入り込む凹状の嵌合部を、それぞれ設けたことを特徴とするネジの締結構造。 A screw fastening structure for screwing a shank portion formed with a screw notch into a mounting member,
A screw fastening structure, wherein a convex protrusion is provided on one of the head of the screw and the mounting member, and a concave fitting part into which the protrusion is inserted is provided on the other. 前記突起部と前記嵌合部は、互いに同一形状で、且つ、ネジの締め付け方向の後端面がほぼ垂直な面に形成されたことを特徴とする請求項１に記載のネジの締結構造。
2. The screw fastening structure according to claim 1, wherein the protrusion and the fitting portion have the same shape, and the rear end surface of the screw tightening direction is formed on a substantially vertical surface.
JP2004084688A 2004-03-23 2004-03-23 Fastening structure for screw Pending JP2005273702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Publication Number Publication Date
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Country Link
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1975420A1 (en) * 2007-03-29 2008-10-01 Sotralu Device for screw assembly of at least one rigid part on a support and opening equipped with such a device
JP2009168118A (en) * 2008-01-15 2009-07-30 Kurashiki Kako Co Ltd Anti-vibration device, and method for manufacturing the same
KR200449371Y1 (en) * 2009-09-16 2010-07-06 주충열 Combined Structure of Farm Equipment Bag
JP2019090492A (en) * 2017-11-15 2019-06-13 株式会社川本製作所 Sealing structure and pump device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1975420A1 (en) * 2007-03-29 2008-10-01 Sotralu Device for screw assembly of at least one rigid part on a support and opening equipped with such a device
FR2914379A1 (en) * 2007-03-29 2008-10-03 Sotralu Soc Par Actions Simpli DEVICE FOR ASSEMBLING A SCREW OF AT LEAST ONE WORKPIECE ON A SUPPORT AND OPENING EQUIPPED WITH SUCH A DEVICE.
JP2009168118A (en) * 2008-01-15 2009-07-30 Kurashiki Kako Co Ltd Anti-vibration device, and method for manufacturing the same
KR200449371Y1 (en) * 2009-09-16 2010-07-06 주충열 Combined Structure of Farm Equipment Bag
JP2019090492A (en) * 2017-11-15 2019-06-13 株式会社川本製作所 Sealing structure and pump device
JP7019385B2 (en) 2017-11-15 2022-02-15 株式会社川本製作所 Sealed structure and pumping equipment

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