JP3188380U

JP3188380U - screw

Info

Publication number: JP3188380U
Application number: JP2013006268U
Authority: JP
Inventors: 諭青山
Original assignee: 尾張精機株式会社
Priority date: 2013-10-31
Filing date: 2013-10-31
Publication date: 2014-01-16
Anticipated expiration: 2023-10-31

Abstract

【課題】雄ねじ部の雌ねじ部に対する干渉力を大きくし、緩みを防止するねじを提供する。【解決手段】ねじ１０は、少なくとも軸部１１の一部における雄ねじ部１３の谷部の径寸法が、当該軸部１１の他部における雄ねじ部１３の谷部の径寸法よりも長く、軸部１１の一部における雄ねじ部１３の谷部が当該軸部１１の他部における雄ねじ部１３の谷部よりも太くなっている。つまり、ねじ１０は、少なくとも軸部１１の一部における雄ねじ部１３の谷底が、当該軸部１１の他部における雄ねじ部１３の谷底よりも底上げされた構成となる。雄ねじ部１３の山部の径寸法は、軸部１１の軸方向の全長にわたって全て同一の寸法で、雄ねじ部１３の山部のねじ山の角度なども、軸部１１の軸方向の全長にわたって全て同一となっている。【選択図】図１PROBLEM TO BE SOLVED: To provide a screw which increases the interference force of a male screw portion with a female screw portion and prevents loosening. SOLUTION: A screw 10 has a shaft portion in which the diameter dimension of a valley portion of a male screw portion 13 in at least a part of a shaft portion 11 is longer than the diameter dimension of a valley portion of a male screw portion 13 in another portion of the shaft portion 11. The valley portion of the male screw portion 13 in a part of 11 is thicker than the valley portion of the male screw portion 13 in the other portion of the shaft portion 11. That is, the screw 10 has a configuration in which the valley bottom of the male screw portion 13 in at least a part of the shaft portion 11 is raised above the valley bottom of the male screw portion 13 in the other portion of the shaft portion 11. The diameter of the ridge of the male screw portion 13 is the same over the entire length of the shaft portion 11 in the axial direction, and the angle of the thread of the ridge of the male screw portion 13 is also the same over the entire length of the shaft portion 11 in the axial direction. It is the same. [Selection diagram] Fig. 1

Description

本考案は、ねじに関する。 The present invention relates to a screw.

例えば特許文献１に開示されているように、従来のねじは、軸部に形成された雄ねじ部の谷部の径寸法が、当該軸部の基端部から先端部にかけて全て同一の寸法で設定されている。 For example, as disclosed in Patent Document 1, in the conventional screw, the diameter dimension of the valley portion of the male screw portion formed in the shaft portion is set to the same size from the base end portion to the tip end portion of the shaft portion. Has been.

特開２００３−２０６９１８号公報JP 2003-206918 A

しかしながら、上述したような従来のねじでは、雄ねじ部が雌ねじ部に接触する力、即ち、雄ねじ部の雌ねじ部に対する干渉力が不足して、例えば振動などの外力によってねじが緩んでしまうおそれがある。
そこで、本考案は、雄ねじ部の雌ねじ部に対する干渉力を大きくすることができ、緩みを防止できるねじを提供する。 However, in the conventional screw as described above, the force that the male screw portion contacts the female screw portion, that is, the interference force of the male screw portion with the female screw portion is insufficient, and the screw may be loosened by an external force such as vibration. .
Therefore, the present invention provides a screw that can increase the interference force of the male screw portion with the female screw portion and prevent loosening.

本考案に係るねじは、雄ねじ部が形成された軸部と、この軸部の一端部に設けられた頭部と、を備える。そして、軸部の一部における雄ねじ部の谷部の径寸法が、当該軸部の他部における雄ねじ部の谷部の径寸法よりも長くなっている。
この構成のねじによれば、軸部のうち谷部の径寸法が他部よりも長くなっている部分において、雄ねじ部が雌ねじ部に接触する力、即ち、干渉力が大きくなり、これにより、例えば振動などの外力によってねじが緩んでしまうことを防止することができる。 The screw which concerns on this invention is provided with the axial part in which the external thread part was formed, and the head provided in the one end part of this axial part. And the diameter dimension of the trough part of the external thread part in a part of axial part is longer than the radial dimension of the trough part of the external thread part in the other part of the said axial part.
According to the screw of this configuration, in the portion where the diameter dimension of the valley portion is longer than the other portion of the shaft portion, the force that the male screw portion contacts the female screw portion, that is, the interference force is increased. For example, it is possible to prevent the screw from being loosened by an external force such as vibration.

一実施形態に係るねじの側面図Side view of screw according to one embodiment 変形例に係る図１相当図（その１）FIG. 1 equivalent view (No. 1) according to the modification 変形例に係る図１相当図（その２）FIG. 1 equivalent view (No. 2) according to the modification 変形例に係る図１相当図（その３）FIG. 1 equivalent view (No. 3) according to the modification

以下、本考案の一実施形態について図面を参照しながら説明する。例えば図１に示すように、ねじ１０は、その全体が金属材料で形成されており、軸部１１と頭部１２とを備える。軸部１１の外周部には、その軸方向の全長にわたって、谷部および山部を有する雄ねじ部１３が形成されている。頭部１２は、軸部１１の一端部に当該軸部１１と一体的に設けられている。この頭部１２には、例えばドライバなどの締め付け用の工具を係合させるための係合部１４が形成されている。係合部１４は、例えば、プラスドライバに対応して十字状に形成されたり、マイナスドライバに対応して一文字状つまりすり割り状に形成されたり、レンチに対応して多角形状に形成されたりするなど、種々の形状の溝あるいは穴として形成される。また、頭部１２には鍔部１５が形成されている。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. For example, as shown in FIG. 1, the screw 10 is entirely formed of a metal material and includes a shaft portion 11 and a head portion 12. A male screw portion 13 having a valley portion and a mountain portion is formed on the outer peripheral portion of the shaft portion 11 over the entire length in the axial direction. The head portion 12 is provided integrally with the shaft portion 11 at one end portion of the shaft portion 11. The head 12 is formed with an engaging portion 14 for engaging a tightening tool such as a driver. For example, the engaging portion 14 is formed in a cross shape corresponding to the plus driver, is formed in a single letter shape, that is, a slit shape, corresponding to the minus driver, or is formed in a polygon shape corresponding to the wrench. Etc., such as grooves or holes having various shapes. In addition, a collar portion 15 is formed on the head portion 12.

このねじ１０は、少なくとも軸部１１の一部における雄ねじ部１３の谷部の径寸法が、当該軸部１１の他部における雄ねじ部１３の谷部の径寸法よりも長くなっており、従って、軸部１１の一部における雄ねじ部１３の谷部が当該軸部１１の他部における雄ねじ部１３の谷部よりも太くなっている。つまり、ねじ１０は、少なくとも軸部１１の一部における雄ねじ部１３の谷底が、当該軸部１１の他部における雄ねじ部１３の谷底よりも底上げされた構成となっている。次に、この雄ねじ部１３の構成例について説明する。なお、雄ねじ部１３の山部の径寸法は、軸部１１の軸方向の全長にわたって全て同一の寸法となっている。また、雄ねじ部１３の山部のねじ山の角度なども、軸部１１の軸方向の全長にわたって全て同一となっている。 In this screw 10, the diameter dimension of the valley part of the male screw part 13 in at least a part of the shaft part 11 is longer than the diameter dimension of the valley part of the male screw part 13 in the other part of the shaft part 11, and therefore A valley portion of the male screw portion 13 in a part of the shaft portion 11 is thicker than a valley portion of the male screw portion 13 in the other portion of the shaft portion 11. That is, the screw 10 has a configuration in which at least a valley bottom of the male screw portion 13 in a part of the shaft portion 11 is raised higher than a valley bottom of the male screw portion 13 in the other portion of the shaft portion 11. Next, a configuration example of the male screw portion 13 will be described. In addition, the diameter dimension of the peak part of the external thread part 13 is the same dimension over the full length of the axial direction of the axial part 11. FIG. Further, the angle of the thread of the threaded portion of the male threaded portion 13 and the like are all the same over the entire length of the shaft portion 11 in the axial direction.

この場合、ねじ１０は、軸部１１のうち頭部１２側の部分１１ａにおける雄ねじ部１３の谷部の径寸法Ｄ１が、当該軸部１１の他部１１ｂ、つまり、頭部１２側の部分１１ａを除く先端側の部分における雄ねじ部１３の谷部の径寸法Ｄ２よりも長くなっている。即ち、ねじ１０は、軸部１１のうち頭部１２から所定範囲Ｌ内の部分における雄ねじ部１３の谷部の径寸法Ｄ１が当該軸部１１の他部における雄ねじ部１３の谷部の径寸法Ｄ２よりも大きくなるように構成されている。 In this case, in the screw 10, the diameter D1 of the trough portion of the male screw portion 13 in the portion 11 a on the head portion 12 side of the shaft portion 11 is the other portion 11 b of the shaft portion 11, that is, the portion 11 a on the head portion 12 side. It is longer than the diameter dimension D2 of the trough part of the external thread part 13 in the part on the front end side excluding. That is, in the screw 10, the diameter D1 of the valley of the male screw 13 in the portion within the predetermined range L from the head 12 of the shaft 11 is the diameter of the valley of the male screw 13 in the other part of the shaft 11. It is configured to be larger than D2.

なお、この所定範囲Ｌ、つまり、軸部１１が有する雄ねじ部１３のうち谷部の径寸法を他部よりも長くする範囲は、適宜変更して設定することができる。例えば図１に示す例では、この所定範囲Ｌとして、軸部１１の全長の概ね１／３ほどの長さが設定されている。なお、所定範囲Ｌを、厳密に軸部１１の全長の１／３の長さに設定してもよい。 Note that the predetermined range L, that is, the range in which the diameter dimension of the valley portion of the male screw portion 13 of the shaft portion 11 is longer than that of the other portion, can be appropriately changed and set. For example, in the example illustrated in FIG. 1, the predetermined range L is set to a length that is approximately 1/3 of the entire length of the shaft portion 11. Note that the predetermined range L may be set to exactly one third of the entire length of the shaft portion 11.

また、この所定範囲Ｌ内の部分における雄ねじ部１３の谷部の径寸法Ｄ１は、軸部１１の他部における雄ねじ部１３の谷部の径寸法Ｄ２よりも所定パーセントだけ長くなっている。この場合、この所定パーセントとして概ね５パーセントほどが設定されている。従って、所定範囲Ｌ内の部分における雄ねじ部１３の谷部の径寸法Ｄ１は、軸部１１の他部における雄ねじ部１３の谷部の径寸法Ｄ２の概ね１０５パーセントほどの大きさとなっている。なお、所定パーセントとして厳密に５パーセントを設定してもよい。 Further, the diameter dimension D1 of the valley portion of the male screw portion 13 in the portion within the predetermined range L is longer than the diameter dimension D2 of the valley portion of the male screw portion 13 in the other portion of the shaft portion 11 by a predetermined percentage. In this case, approximately 5% is set as the predetermined percentage. Therefore, the diameter D1 of the valley portion of the male screw portion 13 in the portion within the predetermined range L is approximately 105% of the diameter D2 of the valley portion of the male screw portion 13 in the other portion of the shaft portion 11. In addition, you may set exactly 5 percent as a predetermined percentage.

本実施形態に係るねじ１０によれば、軸部１１の一部である部分１１ａにおける雄ねじ部１３の谷部の径寸法Ｄ１が当該軸部１１の他部１１ｂにおける雄ねじ部１３の谷部の径寸法Ｄ２よりも長く設定されており、従って、雄ねじ部１３の一部の谷部が他部の谷部よりも太くなっている。そのため、このねじ１０が図示しない雌ねじ部にねじ込まれる際には、谷部の径寸法が長くなっている部分、即ち、部分１１ａにおいて、雄ねじ部１３の谷部が雌ねじ部の山部に接触する力、即ち、雄ねじ部１３の雌ねじ部に対する干渉力が増大する。これにより、例えば振動などの外力によってねじ１０が緩んでしまうことを防止することができる。 According to the screw 10 according to the present embodiment, the diameter D1 of the valley portion of the male screw portion 13 in the portion 11a that is a part of the shaft portion 11 is the diameter of the valley portion of the male screw portion 13 in the other portion 11b of the shaft portion 11. It is set longer than the dimension D2, and accordingly, a part of the valley portion of the male screw portion 13 is thicker than the other valley portion. Therefore, when the screw 10 is screwed into a female screw portion (not shown), the valley portion of the male screw portion 13 contacts the peak portion of the female screw portion in the portion where the diameter of the valley portion is long, that is, the portion 11a. The force, that is, the interference force of the male screw portion 13 with the female screw portion increases. Thereby, it is possible to prevent the screw 10 from being loosened by an external force such as vibration.

また、ねじ１０によれば、特に軸部１１の基端部となる頭部１２側の部分１１ａにおいて谷部の径が他部１１ｂよりも長くなるように設定されている。従って、ねじ１０が雌ねじ部に完全にねじ込まれた状態となったときに軸部１１の根本部分でねじ１０が雌ねじ部に対してロックされるようになり、ねじ１０が雌ねじ部に完全にねじ込まれた状態を緩みなく維持することができる。また、軸部１１の先端側における谷部の径は長く設定されていないことから、雌ねじ部に対する軸部１１のねじ込みをスムーズに進めることができる。
また、ねじ１０によれば、雄ねじ部１３の谷部の径寸法のみを変更すればよく、雄ねじ部１３の山部の形状や角度を変える必要がない。 Moreover, according to the screw 10, the diameter of the trough is set to be longer than that of the other portion 11b, particularly in the portion 11a on the head 12 side that is the base end portion of the shaft portion 11. Accordingly, when the screw 10 is completely screwed into the female screw portion, the screw 10 is locked to the female screw portion at the root portion of the shaft portion 11, and the screw 10 is completely screwed into the female screw portion. Can be maintained without loosening. Moreover, since the diameter of the trough part in the front end side of the axial part 11 is not set long, the screwing of the axial part 11 with respect to an internal thread part can be advanced smoothly.
Further, according to the screw 10, it is only necessary to change the diameter dimension of the valley portion of the male screw portion 13, and it is not necessary to change the shape or angle of the mountain portion of the male screw portion 13.

なお、本考案は、上述した一実施形態に限定されるものではなく、その要旨を逸脱しない範囲で変形あるいは拡張することができる。
例えば図２に示すように、ねじ１０は、所定範囲Ｌとして、軸部１１の全長の概ね半分ほどの長さを設定してもよい。また、ねじ１０は、所定範囲Ｌとして、厳密に軸部１１の全長の半分の長さを設定してもよい。また、例えば図３に示すように、ねじ１０は、所定範囲Ｌとして軸部１１の全長の概ね１／４ほどの長さを設定してもよい。また、ねじ１０は、所定範囲Ｌとして、厳密に軸部１１の全長の１／４の長さを設定してもよい。また、例えば図４に示すように、ねじ１０は、所定範囲Ｌとして軸部１１の全長の概ね１／５ほどの長さを設定してもよい。また、ねじ１０は、所定範囲Ｌとして、厳密に軸部１１の全長の１／５の長さを設定してもよい。 In addition, this invention is not limited to one Embodiment mentioned above, It can change or expand in the range which does not deviate from the summary.
For example, as shown in FIG. 2, the screw 10 may have a predetermined range L and a length that is approximately half of the entire length of the shaft portion 11. Further, the screw 10 may be set to have a predetermined range L and a length that is exactly half the total length of the shaft portion 11. For example, as shown in FIG. 3, the screw 10 may have a predetermined range L and a length that is approximately ¼ of the entire length of the shaft portion 11. Further, the screw 10 may be set to a predetermined range L and a length that is exactly ¼ of the entire length of the shaft portion 11. For example, as shown in FIG. 4, the screw 10 may have a predetermined range L and a length that is approximately 1/5 of the entire length of the shaft portion 11. Further, the screw 10 may be set to a predetermined range L and a length that is exactly 1/5 of the entire length of the shaft portion 11.

なお、所定範囲Ｌは、図１〜図４に示した長さに限られるものではなく、適宜変更して実施することができる。また、所定範囲Ｌが大き過ぎると雄ねじ部１３の雌ねじ部に対する干渉力が強くなり過ぎてしまい、一方、所定範囲Ｌが小さ過ぎると雄ねじ部１３の雌ねじ部に対する干渉力が弱くなり過ぎてしまうおそれがある。そのため、所定範囲Ｌとしては、軸部１１の全長の概ね１／３ほどの長さ、あるいは、厳密に１／３の長さを設定することが好ましい。 The predetermined range L is not limited to the length shown in FIGS. 1 to 4, and can be implemented with appropriate changes. On the other hand, if the predetermined range L is too large, the interference force of the male screw portion 13 with respect to the female screw portion becomes too strong. On the other hand, if the predetermined range L is too small, the interference force of the male screw portion 13 with respect to the female screw portion may become too weak. There is. Therefore, as the predetermined range L, it is preferable to set a length of about 1/3 of the entire length of the shaft portion 11 or a length of exactly 1/3.

また、所定範囲Ｌ内の部分１１ａにおける雄ねじ部１３の谷部の径寸法Ｄ１は、軸部１１の他部１１ｂにおける雄ねじ部１３の谷部の径寸法Ｄ２よりも例えば概ね１０パーセントほど長く設定してもよい。また、所定範囲Ｌ内の部分１１ａにおける雄ねじ部１３の谷部の径寸法Ｄ１は、軸部１１の他部１１ｂにおける雄ねじ部１３の谷部の径寸法Ｄ２よりも厳密に１０パーセント長く設定してもよい。 Further, the diameter D1 of the valley of the male thread 13 in the portion 11a within the predetermined range L is set to be, for example, approximately 10% longer than the diameter D2 of the valley of the male thread 13 in the other part 11b of the shaft 11. May be. Further, the diameter D1 of the valley portion of the male screw portion 13 in the portion 11a within the predetermined range L is set to be strictly 10% longer than the diameter D2 of the valley portion of the male screw portion 13 in the other portion 11b of the shaft portion 11. Also good.

また、所定範囲Ｌ内の部分１１ａにおける雄ねじ部１３の谷部の径寸法Ｄ１は、軸部１１の他部１１ｂにおける雄ねじ部１３の谷部の径寸法Ｄ２よりも例えば概ね３パーセントほど長く設定してもよい。また、所定範囲Ｌ内の部分１１ａにおける雄ねじ部１３の谷部の径寸法Ｄ１は、軸部１１の他部１１ｂにおける雄ねじ部１３の谷部の径寸法Ｄ２よりも厳密に３パーセント長く設定してもよい。即ち、上記の所定パーセントは適宜変更して設定することができる。 Further, the diameter D1 of the valley of the male thread 13 in the portion 11a within the predetermined range L is set to be, for example, approximately 3% longer than the diameter D2 of the valley of the male thread 13 in the other part 11b of the shaft 11. May be. Further, the diameter D1 of the valley portion of the male screw portion 13 in the portion 11a within the predetermined range L is set to be strictly 3% longer than the diameter D2 of the valley portion of the male screw portion 13 in the other portion 11b of the shaft portion 11. Also good. That is, the predetermined percentage can be changed and set as appropriate.

なお、所定範囲Ｌ内の部分１１ａにおける雄ねじ部１３の谷部の径寸法Ｄ１が大き過ぎると雄ねじ部１３の雌ねじ部に対する干渉力が強くなり過ぎてしまい、一方、所定範囲Ｌ内の部分１１ａにおける雄ねじ部１３の谷部の径寸法Ｄ１が小さ過ぎると雄ねじ部１３の雌ねじ部に対する干渉力が弱くなり過ぎてしまうおそれがある。そのため、所定範囲Ｌ内の部分における雄ねじ部１３の谷部の径寸法Ｄ１としては、軸部１１の他部における雄ねじ部１３の谷部の径寸法Ｄ２よりも概ね５パーセントほど長く、あるいは、厳密に５パーセント長く設定することが好ましい。 If the diameter D1 of the valley portion of the male screw portion 13 in the portion 11a within the predetermined range L is too large, the interference force of the male screw portion 13 with respect to the female screw portion becomes too strong. If the diameter D1 of the valley portion of the male screw portion 13 is too small, the interference force of the male screw portion 13 with respect to the female screw portion may be too weak. Therefore, the diameter D1 of the valley portion of the male screw portion 13 in the portion within the predetermined range L is approximately 5% longer than the diameter D2 of the valley portion of the male screw portion 13 in the other portion of the shaft portion 11, or strictly It is preferable to set 5% longer.

また、軸部１１の長さは適宜変更して実施することができる。そして、例えば軸部１１の長さに応じて、上記の所定範囲Ｌの長さや所定パーセントを適宜調整するとよい。また、軸部１１の先端部は、平坦な形状であってもよいし、尖った形状であってもよい。また、頭部１２の形状や大きさは適宜変更して実施することができ、例えば、丸みをおびたほぼ半球状あるいは半楕円球状であってもよいし、例えば六角柱状などの多角柱形状などであってもよい。また、ねじ１０を構成する金属材料は、例えば、鉄、アルミニウム、チタン、ステンレス、銅、あるいは、これらの合金など、種々の金属材料を採用することができる。また、ねじ１０は、金属製のねじに限られるものではなく、例えば、木製のねじや樹脂材料製のねじなどであってもよい。また、本考案は、いわゆるボルトやタッピンねじなど種々のねじ類にも適用することができる。 Further, the length of the shaft portion 11 can be changed as appropriate. Then, for example, the length and the predetermined percentage of the predetermined range L may be appropriately adjusted according to the length of the shaft portion 11. Further, the tip portion of the shaft portion 11 may have a flat shape or a pointed shape. Further, the shape and size of the head 12 can be changed as appropriate. For example, the head 12 may have a rounded substantially hemispherical or semi-elliptical spherical shape, for example, a hexagonal prism shape or the like. It may be. Moreover, various metal materials, such as iron, aluminum, titanium, stainless steel, copper, or these alloys, are employable as the metal material which comprises the screw 10, for example. Further, the screw 10 is not limited to a metal screw, and may be, for example, a wooden screw or a resin material screw. The present invention can also be applied to various screws such as so-called bolts and tapping screws.

図面中、１０はねじ、１１は軸部、１２は頭部、１３は雄ねじ部を示す。 In the drawings, 10 is a screw, 11 is a shaft portion, 12 is a head portion, and 13 is a male screw portion.

Claims

A shaft portion formed with a male screw portion;
A screw provided with a head provided at one end of the shaft,
A screw in which a diameter dimension of a valley portion of the male screw portion in a part of the shaft portion is longer than a diameter size of a valley portion of the male screw portion in the other portion of the shaft portion.

The diameter dimension of the trough part of the said external thread part in the part by the side of the said head part among the said axial parts is longer than the radial dimension of the trough part of the said external thread part in the other part of the said axial part. screw.

The diameter dimension of the trough part of the said external thread part in the part within the predetermined range from the said head part among the said axial parts is longer than the radial dimension of the trough part of the said external thread part in the other part of the said axial part. Or the screw according to 2.

The screw according to claim 3, wherein the predetermined range is set to a length that is approximately half of the entire length of the shaft portion.

The screw according to claim 3, wherein the predetermined range is set to a length of about 1/3 of the total length of the shaft portion.

The screw according to claim 3, wherein the predetermined range is set to approximately ¼ of the total length of the shaft portion.

The screw according to claim 3, wherein the predetermined range is set to approximately 1/5 of the total length of the shaft portion.

The diameter dimension of the valley part of the external thread part in a part of the shaft part is longer by a predetermined percentage than the diameter dimension of the valley part of the external thread part in the other part of the shaft part. The screw according to claim 1.

The screw according to claim 8, wherein approximately 5 percent is set as the predetermined percent.