JP2020109306A - Screw or bolt fastening structure and screw - Google Patents
Screw or bolt fastening structure and screw Download PDFInfo
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- JP2020109306A JP2020109306A JP2019000489A JP2019000489A JP2020109306A JP 2020109306 A JP2020109306 A JP 2020109306A JP 2019000489 A JP2019000489 A JP 2019000489A JP 2019000489 A JP2019000489 A JP 2019000489A JP 2020109306 A JP2020109306 A JP 2020109306A
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- 239000000463 material Substances 0.000 claims abstract description 28
- 239000010985 leather Substances 0.000 claims abstract description 11
- 239000002649 leather substitute Substances 0.000 claims abstract description 8
- 230000000630 rising effect Effects 0.000 claims abstract description 5
- 239000007769 metal material Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000002657 fibrous material Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Connection Of Plates (AREA)
Abstract
Description
本発明は、被締付部材に対して各種部材を取り付けるときに用いるねじ又はボルトの締付構造及びねじに関する。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw or bolt tightening structure and screw used when attaching various members to a member to be tightened.
特許文献１に記載のボルトの固着構造は、取付板の取付孔周辺に凸条部を突出形成し、ボルト頭部下面には複数の突起を突設し、このボルトを取付孔に挿入し取付孔周縁をボルトネジ部の基部にかしめ付けると共に、ボルトの突起を取付板の凸条部に食い込ませてなる構造を備える。この構成により、ボルトを容易に取付板に固定できると共に、ボルト抜けや回転のおそれのない、ボルトの固着構造を提供することを目的としている。 In the bolt fixing structure described in Patent Document 1, a projecting ridge is formed around the mounting hole of the mounting plate, and a plurality of protrusions are provided on the lower surface of the bolt head. The bolt is inserted into the mounting hole for mounting. A structure is provided in which the periphery of the hole is caulked to the base of the bolt screw portion and the protrusion of the bolt bites into the ridge portion of the mounting plate. With this configuration, it is an object of the present invention to provide a bolt fixing structure in which the bolt can be easily fixed to the mounting plate and there is no risk of the bolt coming off or rotating.
ところで、従来出願人は、ハンドバッグなど皮革材、合成皮革材用の金具の取り扱い業者として、鳩目、錠類などを被締付部材に対して締付部材を用いて取り付ける際、規格品に係るボルトやねじを締付部材として用いてきたところ、経年変化により金具が緩んでしまい、脱落してしまう不具合が生じていた。そうした不具合を解消するために、数多くのねじやボルトの試行錯誤していた、又は、最適なものがなかった。 By the way, the conventional applicant, as a trader of metal fittings for leather materials such as handbags and synthetic leather materials, attaches eyelets, locks, etc. to a member to be tightened by using the tightening member. When screws and screws have been used as tightening members, the metal fittings have loosened due to aging and have fallen off. In order to solve such a problem, many screws and bolts were tried and errored, or there was no optimum one.
また、特許文献１に記載のボルトの固着構造では、取付板に強く固着させるために突起の高さを大きくすると、取付の際に大きな力が必要となり、簡便に固着操作を行うことができないだけでなく、頭部や軸部を損傷させてしまうおそれがある。 Further, in the bolt fixing structure described in Patent Document 1, if the height of the protrusion is increased in order to firmly fix the bolt to the mounting plate, a large force is required for mounting, and the fixing operation cannot be simply performed. Not only that, it may damage the head and shaft.
そこで、本発明は、皮革材、合成皮革材等の被締付部材に対し、容易かつ確実にねじ又はボルトを締め付けることができ、かつ、締め付け後はねじ又はボルトを強く固着させることができるねじ又はボルトの締付構造、及び、ねじを提供することを目的としている。 Therefore, the present invention is a screw capable of easily and surely tightening a screw or a bolt to a member to be tightened such as a leather material or a synthetic leather material, and firmly fixing the screw or the bolt after tightening. Alternatively, it is intended to provide a bolt tightening structure and a screw.
上記課題を解決するために、本発明のねじ又はボルトの締付構造は、頭部と、頭部の座面の中心位置から垂直方向下方に延び、外周面にねじ溝が設けられた軸部とから構成されるねじ又はボルトの締付構造であって、ねじ又はボルトは、軸部を中心とする周方向に沿った回転締付方向に回転することによって、被締付部材に対して締め付けられ、座面において、回転締付方向に沿って少なくとも１つの突条部が突出形成され、突条部は、座面から回転締付方向と対向する方向に下降傾斜するテーパー状部と、テーパー状部の下方端から座面に向け上昇傾斜する崖部とから構成され、座面に対するテーパー状部の下降傾斜角度は、崖部が座面に向けて上昇する傾斜角度よりも小さく設定され、ねじ又はボルトを回転締付方向に締付端まで回転させたときに、突条部を被締付部材に圧入・固定させることを可能としたことを特徴としている。 In order to solve the above problems, a screw or bolt tightening structure of the present invention is a head portion, and a shaft portion that extends vertically downward from a center position of a seating surface of the head portion and has a thread groove on an outer peripheral surface. And a screw or bolt tightening structure, wherein the screw or bolt is tightened with respect to a member to be tightened by rotating in a rotating tightening direction along a circumferential direction around a shaft. At least one projecting ridge is formed on the seat surface along the rotational tightening direction, and the projecting ridge has a taper-like portion that is inclined downward from the seat surface in a direction facing the rotational tightening direction and a taper. It is composed of a cliff part that rises upward from the lower end of the ridge toward the seat surface, and the descending inclination angle of the tapered portion with respect to the seat surface is set to be smaller than the inclination angle at which the cliff rises toward the seat surface. It is characterized in that when the screw or the bolt is rotated in the rotational tightening direction up to the tightening end, the protruding portion can be press-fitted and fixed to the member to be tightened.
本発明のねじ又はボルトの締付構造において、崖部は回転締付方向に上昇傾斜することが好ましい。 In the screw or bolt tightening structure of the present invention, it is preferable that the cliff portion be inclined upward in the rotation tightening direction.
本発明のねじ又はボルトの締付構造において、座面に対するテーパー状部の下降傾斜角度が２０〜４０度の範囲であることが好ましい。 In the screw or bolt tightening structure of the present invention, it is preferable that the descending inclination angle of the tapered portion with respect to the seat surface is in the range of 20 to 40 degrees.
本発明のねじ又はボルトの締付構造において、座面に向けて崖部が上昇する傾斜角度が８０〜９０度の範囲であることが好ましい。 In the screw or bolt tightening structure of the present invention, it is preferable that the inclination angle at which the cliff rises toward the seat surface is in the range of 80 to 90 degrees.
本発明のねじ又はボルトの締付構造において、突条部は、軸部を中心とする周方向において、軸部に関して対称に２以上形成されていることが好ましい。 In the screw or bolt tightening structure of the present invention, it is preferable that two or more ridges are formed symmetrically with respect to the shaft in the circumferential direction centered on the shaft.
本発明のねじ又はボルトの締付構造において、突条部は、軸部を中心とする座面の径方向において、中央の位置に形成されていることが好ましい。 In the screw or bolt tightening structure of the present invention, it is preferable that the protruding portion is formed at a central position in the radial direction of the seat surface centering on the shaft portion.
本発明のねじ又はボルトの締付構造において、被締付部材は、突条部の構成材料よりも軟性を有する材料で構成されることが好ましい。 In the screw or bolt tightening structure of the present invention, the member to be tightened is preferably made of a material that is softer than the material of which the ridges are made.
本発明のねじ又はボルトの締付構造において、ねじ又はボルトは硬質金属材で構成され、被締付部材は、皮革材、合成皮革材、繊維材、プラスチック材、木材、軟質金属材のいずれかで構成されることが好ましい。 In the screw or bolt tightening structure of the present invention, the screw or bolt is made of a hard metal material, and the member to be tightened is any one of a leather material, a synthetic leather material, a fiber material, a plastic material, wood, and a soft metal material. Preferably.
本発明のねじは、頭部と、頭部の座面の中心位置から垂直方向下方に延び、外周面にねじ溝が設けられた軸部とから構成されるねじであって、ねじは、軸部を中心とする周方向に沿った回転締付方向に回転することによって、被締付部材に対して締め付けられるものであり、座面において、回転締付方向に沿って少なくとも１つの突条部が突出形成され、突条部は、座面から回転締付方向と対向する方向に下降傾斜するテーパー状部と、テーパー状部の下方端から座面に向けて、回転締付方向に上昇傾斜する崖部とから構成され、座面に対するテーパー状部の下降傾斜角度が２０〜４０度の範囲であり、座面に向けて崖部が上昇する傾斜角度が８０〜９０度の範囲であることを特徴としている。このねじにはボルトも含まれる。 The screw of the present invention is a screw that is composed of a head portion and a shaft portion that extends vertically downward from the center position of the seat surface of the head portion and that has a thread groove on the outer peripheral surface. By rotating in a rotational tightening direction along the circumferential direction centering on the portion, the member is tightened with respect to the member to be tightened, and at the seat surface, at least one ridge portion along the rotational tightening direction. Is formed in a protruding manner, and the ridge portion is a taper-shaped portion that descends and inclines from the seat surface in a direction facing the rotational tightening direction, and an upward inclination in the rotational tightening direction from the lower end of the taper-shaped portion toward the seat surface. The slope angle of the tapered portion with respect to the seat surface is in the range of 20 to 40 degrees, and the slope angle of the cliff portion toward the seat surface is in the range of 80 to 90 degrees. Is characterized by. The screw also includes a bolt.
本発明に係るねじ又はボルトの締付構造によると、皮革材、合成皮革材等の被締付部材に対し、容易かつ確実にねじ又はボルトを締め付けることができ、かつ、締め付け後はねじ又はボルトを強く固定させることができる。 According to the screw or bolt tightening structure of the present invention, the screw or the bolt can be easily and reliably tightened with respect to the member to be tightened such as the leather material and the synthetic leather material, and after the tightening, the screw or the bolt is tightened. Can be strongly fixed.
以下、本発明の実施形態に係るねじ又はボルトの締付構造について図面を参照しつつ詳しく説明する。
図１は、本実施形態におけるボルト１０の構成を示す側面図、図２は図１に示すボルト１０の底面図、図３は図１に示すボルト１０を下方から見た斜視図である。図４は、本実施形態におけるボルト１０を被締結部材としてのキーホルダ４０に取り付ける前の状態を示す斜視図、図５は、図４に示すキーホルダ４０にボルト１０を取り付ける過程を示す側面図、図６は図４に示すキーホルダにボルトを取り付け終わった状態を拡大して示す側面図であって、図５の状態からボルト１０を回転締付方向に回した状態を示している。
Hereinafter, a screw or bolt tightening structure according to an embodiment of the present invention will be described in detail with reference to the drawings.
1 is a side view showing the structure of the bolt 10 according to the present embodiment, FIG. 2 is a bottom view of the bolt 10 shown in FIG. 1, and FIG. 3 is a perspective view of the bolt 10 shown in FIG. 4 is a perspective view showing a state before the bolt 10 according to the present embodiment is attached to the key holder 40 as a member to be fastened, and FIG. 5 is a side view showing a process of attaching the bolt 10 to the key holder 40 shown in FIG. 6 is an enlarged side view showing a state where the bolt has been attached to the key holder shown in FIG. 4, and shows a state in which the bolt 10 is rotated in the rotational tightening direction from the state of FIG.
以下の説明において、図１の上下を上下方向とし、図１のＤ１方向を上方向、Ｄ２方向を下方向とする。図２に示す頭部２０の座面２１に関して、軸部３０（軸部３０の中心軸）を中心とする周方向のうち、反時計回り方向Ｃ１を回転締付方向、時計回り方向Ｃ２を回転緩め方向とする。図２に示す頭部の座面に関して、軸部を中心として外周へ向かう方向又は外周から軸部へ向かう方向を径方向とする。また、上下方向下方から見た状態を平面視ということがある。 In the following description, the upper and lower sides of FIG. 1 will be referred to as the vertical direction, the D1 direction of FIG. 1 will be referred to as the upward direction, and the D2 direction will be referred to as the downward direction. With respect to the seating surface 21 of the head portion 20 shown in FIG. 2, of the circumferential direction around the shaft portion 30 (the central axis of the shaft portion 30), the counterclockwise direction C1 rotates in the tightening direction and the clockwise direction C2 rotates. Use the loosening direction. Regarding the seating surface of the head shown in FIG. 2, the direction toward the outer periphery with the shaft portion as the center or the direction from the outer periphery toward the shaft portion is defined as the radial direction. Further, a state viewed from below in the vertical direction may be referred to as a plan view.
以下、本実施形態のボルトの締付構造について説明するが、ナットを用いないねじの締付構造についても同様である。
図１〜図３に示すように、本実施形態におけるボルト１０は、平面視円形の略板状の頭部２０と、頭部２０の座面２１から延びる軸部３０とを備える。ボルト１０は、被締付部材の構成材料よりも硬性の材料で形成される。例えば被締付部材として皮革材、合成皮革材、繊維材、プラスチック材、木材等の軟性材料のいずれかが用いられた場合は、これらよりも硬質の各種金属材を用いることができる。また、被締付部材として、アルミニウム、ニッケル、銅、金、銀、白金、これらのいずれかの合金、その他の軟質金属材や、硬質のプラスチック材が用いられた場合は、これらよりも硬質の金属材として、鋼鉄や、ステンレス鋼その他の合金を用いることができる。
Hereinafter, the bolt tightening structure of the present embodiment will be described, but the same applies to a screw tightening structure that does not use a nut.
As shown in FIGS. 1 to 3, the bolt 10 in the present embodiment includes a substantially plate-shaped head 20 having a circular shape in plan view, and a shaft portion 30 extending from a seat surface 21 of the head 20. The bolt 10 is formed of a material that is harder than the constituent material of the tightened member. For example, when one of a soft material such as a leather material, a synthetic leather material, a fiber material, a plastic material, or wood is used as the tightened member, various metal materials harder than these can be used. Further, as the member to be tightened, aluminum, nickel, copper, gold, silver, platinum, alloys of any of these, other soft metal material, when a hard plastic material is used, harder than these Steel, stainless steel, or other alloys can be used as the metal material.
軸部３０は、頭部２０の下面としての座面２１の中心位置から、垂直方向下方に延びており、その外周面には、図２に示す回転締付方向Ｃ１にボルト１０を回転させたときに被締付部材の取付孔内に螺入され、これによってボルト１０が被締付部材に対して締め付けられるようにねじ溝が設けられている。 The shaft portion 30 extends vertically downward from the center position of the seat surface 21 as the lower surface of the head portion 20, and the bolt 10 is rotated on the outer peripheral surface thereof in the rotation tightening direction C1 shown in FIG. A thread groove is provided so that the bolt 10 is sometimes screwed into the mounting hole of the member to be tightened, whereby the bolt 10 is tightened with respect to the member to be tightened.
頭部２０の座面２１には、２つの突条部２２、２３が下方に突出するように形成されている。２つの突条部２２、２３は、互いに同じ形状を備えており、平面視において、軸部３０に関して対称に配置されている。対称に配置することにより、被締付部材に対してボルト１０を回転締付したときに、２つの突条部２２、２３がバランスよく圧入されるため、被締付部材に対する固定強度を高くすることができる。 Two ridges 22 and 23 are formed on the seat surface 21 of the head 20 so as to project downward. The two ridge portions 22 and 23 have the same shape as each other, and are arranged symmetrically with respect to the shaft portion 30 in a plan view. By arranging symmetrically, when the bolt 10 is rotationally tightened with respect to the member to be tightened, the two protruding portions 22 and 23 are press-fitted in a well-balanced manner, so that the fixing strength to the member to be tightened is increased. be able to.
２つの突条部２２、２３は、座面２１において、軸部３０を中心とする周方向に沿って配置され、かつ、軸部３０を中心とする径方向の中央の位置に形成されている。中央の位置に配置することにより、被締付部材に対してボルト１０を回転締付したときに、径方向における座面２１の傾斜の発生を抑えることができるため、２つの突条部２２、２３にかかる外力をバランスよく分散でき、また、座面２１と被締付部材との間への異物の混入を抑えることができることから、ボルト１０の固着強度の維持に資することができる。また、側方から見て突条部２２、２３を視認しづらくなるため、突条部２２、２３のない従来のボルトと同様の外観を呈することが可能となる。 The two protrusions 22 and 23 are arranged on the seat surface 21 along the circumferential direction centered on the shaft portion 30 and formed at the center position in the radial direction centered on the shaft portion 30. .. By arranging at the central position, it is possible to suppress the occurrence of inclination of the seat surface 21 in the radial direction when the bolt 10 is rotationally tightened with respect to the member to be tightened. The external force applied to 23 can be dispersed in a well-balanced manner, and foreign matter can be prevented from entering between the seat surface 21 and the member to be tightened, which contributes to maintaining the fixing strength of the bolt 10. Further, since it becomes difficult to visually recognize the ribs 22 and 23 when viewed from the side, it is possible to exhibit the same appearance as a conventional bolt without the ribs 22 and 23.
突条部２２は、座面２１から回転締付方向Ｃ１と対向するＣ２方向において下降傾斜するテーパー状部２２ａと、テーパー状部２２ａの下方端２２ｃから座面２１に向けて上昇傾斜する崖部２２ｂとから構成される。同様に、突条部２３は、座面２１から回転締付方向Ｃ１と対向するＣ２方向において下降傾斜するテーパー状部２３ａと、テーパー状部２３ａの下方端２３ｃから座面２１に向けて上昇傾斜する崖部２３ｂとから構成される。テーパー状部２２ａ、２３ａと崖部２２ｂ、２３ｂを設けることにより、ボルト１０を回転締付方向Ｃ１に締付端まで回転させたとき、すなわち座面２１が全体として被締付部材の表面に接触するまで回転させたとき、突条部２２、２３は被締付部材の表面から内部に食い込むように圧入される。これにより、被締付部材に対してボルト１０を強く固定・固着させることが可能となる。 The ridge portion 22 has a tapered portion 22a that slopes downward from the seat surface 21 in the C2 direction that faces the rotational tightening direction C1, and a cliff portion that slopes upward from the lower end 22c of the tapered portion 22a toward the seat surface 21. 22b. Similarly, the protruding portion 23 has a tapered portion 23a that descends from the seat surface 21 in the C2 direction that faces the rotational tightening direction C1, and an upward inclination from the lower end 23c of the tapered portion 23a toward the seat surface 21. It is composed of a cliff portion 23b. By providing the tapered portions 22a and 23a and the cliff portions 22b and 23b, when the bolt 10 is rotated to the tightening end in the rotation tightening direction C1, that is, the seat surface 21 contacts the surface of the member to be tightened as a whole. When rotated until, the ridges 22 and 23 are press-fitted so as to bite into the inside of the member to be tightened. As a result, the bolt 10 can be strongly fixed and fixed to the member to be tightened.
座面２１に対するテーパー状部２２ａ、２３ａの下降傾斜角度は、崖部２２ｂ、２３ｂが座面２１に向けて上昇する上昇傾斜角度よりも小さく設定されている。ここで、テーパー状部２２ａ、２３ａの下降傾斜角度、及び、崖部２２ｂ、２３ｂの上昇傾斜角度は、いずれも座面２１に対する角度である。 The descending inclination angle of the tapered portions 22a and 23a with respect to the seat surface 21 is set to be smaller than the ascending inclination angle of the cliff portions 22b and 23b rising toward the seat surface 21. Here, the descending inclination angles of the tapered portions 22a and 23a and the ascending inclination angles of the cliff portions 22b and 23b are both angles with respect to the seat surface 21.
テーパー状部２２ａ、２３ａの下降傾斜角度は、ボルト１０を回転締付方向Ｃ１に回転させたときに、ボルト１０の操作者に強い抵抗力を感じさせないような範囲として４０度以下が好ましく、周方向におけるサイズを考慮すると２０〜４０度の範囲がさらに好ましい。 The descending inclination angle of the tapered portions 22a and 23a is preferably 40 degrees or less so that the operator of the bolt 10 does not feel a strong resistance when the bolt 10 is rotated in the rotation tightening direction C1. Considering the size in the direction, the range of 20 to 40 degrees is more preferable.
崖部２２ｂ、２３ｂが座面２１に向けて上昇する傾斜角度は、回転締付方向Ｃ１に沿って、被締付部材への強い固着が維持されるように８０〜９０度の範囲に設定することが好ましい。なお、崖部２２ｂ、２３ｂの上昇傾斜角度は、回転締付方向Ｃ１と対向するＣ２方向において、８０〜９０度の範囲で設定することもできる。 The inclination angle at which the cliffs 22b and 23b rise toward the seat surface 21 is set in the range of 80 to 90 degrees along the rotational tightening direction C1 so as to maintain strong adhesion to the member to be tightened. It is preferable. The rising inclination angles of the cliffs 22b and 23b can be set in the range of 80 to 90 degrees in the C2 direction opposite to the rotation tightening direction C1.
テーパー状部２２ａ、２３ａと崖部２２ｂ、２３ｂの傾斜角度を以上のように設定することにより、回転締付においては、操作者に強い抵抗力を感じさせることなく容易に、かつ、締付端まで確実にボルト１０を締め付けることができる。さらに、締付後については、崖部２２ｂ、２３ｂの傾斜角度によって回転緩め方向にボルト１０が回転することが効果的に防止できるため、強く固着された状態を長期に渡って維持することができる。 By setting the inclination angles of the tapered portions 22a and 23a and the cliffs 22b and 23b as described above, the rotating tightening can be performed easily and without causing the operator to feel a strong resistance force. The bolt 10 can be securely tightened up to. Further, after tightening, it is possible to effectively prevent the bolt 10 from rotating in the rotation loosening direction depending on the inclination angle of the cliffs 22b and 23b, so that the strongly fixed state can be maintained for a long time. ..
図４〜図６を参照しつつ、被締付部材へのボルト１０の締付について説明する。ここでは、被締付部材として、皮革材で構成されたキーホルダ４０を用いている。図４に示すように、キーホルダ４０は、皮革材で構成された本体部４１と、端部が本体部４１に接続され、鍵を保持可能な環部４２とを備える。楕円板状の本体部４１の底面４１ａには皮革材で構成された飾り板４３が配置される。本体部４１には、その厚み方向に貫通する、２つの取付孔４１ｈが設けられており、飾り板４３にも、本体部４１の取付孔４１ｈに対応する位置に、その厚み方向に貫通する、２つの貫通孔４３ｈが設けられている（図６参照）。 The tightening of the bolt 10 to the member to be tightened will be described with reference to FIGS. 4 to 6. Here, the key holder 40 made of leather is used as the member to be fastened. As shown in FIG. 4, the key holder 40 includes a main body 41 made of a leather material, and an annular portion 42 having an end connected to the main body 41 and capable of holding a key. A decorative plate 43 made of a leather material is arranged on the bottom surface 41a of the elliptical plate-shaped main body 41. The main body portion 41 is provided with two mounting holes 41h penetrating in the thickness direction, and the decorative plate 43 is also penetrating in the thickness direction at a position corresponding to the mounting hole 41h of the main body portion 41. Two through holes 43h are provided (see FIG. 6).
図４〜図６に示すように、本体部４１の２つの取付孔４１ｈには、２つのボルト１０がそれぞれ螺入される。ボルト１０の軸部３０の先端は、飾り板４３の２つの貫通孔４３ｈから外部へ延出し、これにナット１１が螺合される。この構成においてボルト１０を回転させて締め付けることによって、飾り板４３が本体部４１に対して固定される。この回転締付においては、ボルト１０の頭部２０の座面２１に設けた２つの突条部２２、２３が本体部４１の表面４１ｂに食い込み、かつ、それぞれの崖部２２ｂ、２３ｂの構造により、締付状態が維持されるため、ボルト１０が本体部４１に対して強く固着された状態が長期に渡って維持される。 As shown in FIGS. 4 to 6, the two bolts 10 are respectively screwed into the two mounting holes 41h of the main body 41. The tip of the shaft portion 30 of the bolt 10 extends outward from the two through holes 43h of the decorative plate 43, and the nut 11 is screwed into this. In this structure, the decorative plate 43 is fixed to the main body 41 by rotating and tightening the bolt 10. In this rotational tightening, the two ridges 22 and 23 provided on the seat surface 21 of the head 20 of the bolt 10 bite into the surface 41b of the main body 41, and due to the structure of the respective cliffs 22b and 23b. Since the tightened state is maintained, the state in which the bolt 10 is strongly fixed to the body portion 41 is maintained for a long period of time.
以下に変形例について説明する。
上記実施形態においては２つの突条部２２、２３を設けたが、突条部の数は１つ、又は３つ以上であってもよい。突条部の数によって、回転締付時に操作者に与える抵抗力や、締付後の固着強度などを調整することができる。また、抵抗力や固着強度は、突条部の平面形状や傾斜角度を変更することによっても調整することができる。
Modifications will be described below.
Although two ridges 22 and 23 are provided in the above embodiment, the number of ridges may be one or three or more. Depending on the number of protrusions, it is possible to adjust the resistance force applied to the operator at the time of rotational tightening, the adhesion strength after tightening, and the like. Further, the resistance force and the fixing strength can also be adjusted by changing the planar shape and the inclination angle of the ridge portion.
上記実施形態においては、テーパー状部２２ａ、２３ａの下方端２２ｃ、２３ｃから崖部２２ｂ、２３ｂを開始していたが、これに代えて、下方端２２ｃ、２３ｃと崖部２２ｂ、２３ｂとのそれぞれの間に、座面２１と平行な平面や、回転締付方向に対向するＣ２方向に延びる係止部などを設けることもできる。座面２１と平行な平面を設けることにより、締付後に座面２１に当接する面積を増やすことができ、固着強度の維持を図ることができる。また、係止部を設けることで、ボルト１０が緩む方向に回転するのを効果的に抑止することができる。
本発明について上記実施形態を参照しつつ説明したが、本発明は上記実施形態に限定されるものではなく、改良の目的又は本発明の思想の範囲内において改良又は変更が可能である。
In the above embodiment, the cliffs 22b and 23b are started from the lower ends 22c and 23c of the tapered portions 22a and 23a, but instead of this, the lower ends 22c and 23c and the cliffs 22b and 23b are respectively replaced. A flat surface parallel to the seat surface 21, a locking portion extending in the C2 direction facing the rotational tightening direction, and the like may be provided between the two. By providing the flat surface parallel to the seat surface 21, the area of contact with the seat surface 21 after tightening can be increased, and the fixing strength can be maintained. Further, by providing the locking portion, it is possible to effectively prevent the bolt 10 from rotating in the loosening direction.
Although the present invention has been described with reference to the above-described embodiments, the present invention is not limited to the above-described embodiments and can be improved or changed within the scope of the object of improvement or the idea of the present invention.
以上のように、本発明に係るねじ又はボルトの締付構造は、皮革材、合成皮革材等の被締付部材に対し、容易かつ確実にねじ又はボルトを締め付けることができ、かつ、締め付け後はねじ又はボルトを強く固着させることができる点で有用である。 As described above, the screw or bolt tightening structure according to the present invention is capable of easily and reliably tightening the screw or bolt with respect to a member to be tightened such as a leather material and a synthetic leather material, and after tightening. Is useful in that screws or bolts can be firmly fixed.
１０ ボルト
１１ ナット
２０ 頭部
２１ 底面
２２、２３ 突条部
２２ａ、２３ａ テーパー状部
２２ｂ、２３ｂ 崖部
２２ｃ、２３ｃ 下方端
３０ 軸部
４０ キーホルダ
４１ 本体部
４１ａ 底面
４１ｂ 表面
４１ｈ 取付孔
４２ 環部
４３ 飾り板
４３ｈ 貫通孔
10 Bolts 11 Nuts 20 Head 21 Bottom 22 and 23 Projections 22a and 23a Tapered 22b and 23b Cliffs 22c and 23c Lower end 30 Shaft 40 Key holder 41 Body 41a Bottom 41b Surface 41h Mounting hole 42 Ring 43 Decorative plate 43h through hole
Claims (9)
前記ねじ又はボルトは、前記軸部を中心とする周方向に沿った回転締付方向に回転することによって、被締付部材に対して締め付けられ、
前記座面において、前記回転締付方向に沿って少なくとも１つの突条部が突出形成され、
前記突条部は、前記座面から前記回転締付方向と対向する方向に下降傾斜するテーパー状部と、前記テーパー状部の下方端から前記座面に向け上昇傾斜する崖部とから構成され、
前記座面に対する前記テーパー状部の下降傾斜角度は、前記崖部が前記座面に向けて上昇する傾斜角度よりも小さく設定され、
前記ねじ又はボルトを前記回転締付方向に締付端まで回転させたときに、前記突条部を前記被締付部材に圧入・固定させることを可能としたことを特徴とするねじ又はボルトの締付構造。 A tightening structure of a screw or a bolt, which is composed of a head part and a shaft part that extends vertically downward from the center position of the seat surface of the head part and has a thread groove on the outer peripheral surface,
The screw or bolt is tightened with respect to a member to be tightened by rotating in a rotating tightening direction along a circumferential direction with the shaft portion as a center,
On the seat surface, at least one protruding portion is formed to project along the rotation tightening direction,
The ridge portion is composed of a tapered portion that descends and inclines from the seat surface in a direction facing the rotational tightening direction, and a cliff portion that inclines upward from the lower end of the tapered portion toward the seat surface. ,
The descending inclination angle of the tapered portion with respect to the seat surface is set smaller than the inclination angle of the cliff portion rising toward the seat surface,
When the screw or bolt is rotated in the rotational tightening direction up to the tightening end, it is possible to press-fit and fix the protrusion on the member to be tightened. Tightening structure.
前記被締付部材は、皮革材、合成皮革材、繊維材、プラスチック材、木材、軟質金属材のいずれかで構成される請求項７に記載のねじ又はボルトの締付構造。 The screw or bolt is made of a hard metal material,
The screw or bolt tightening structure according to claim 7, wherein the member to be tightened is made of any one of a leather material, a synthetic leather material, a fiber material, a plastic material, wood, and a soft metal material.
前記ねじは、前記軸部を中心とする周方向に沿った回転締付方向に回転することによって、被締付部材に対して締め付けられるものであり、
前記座面において、前記回転締付方向に沿って少なくとも１つの突条部が突出形成され、
前記突条部は、前記座面から前記回転締付方向と対向する方向に下降傾斜するテーパー状部と、前記テーパー状部の下方端から前記座面に向けて、前記回転締付方向に上昇傾斜する崖部とから構成され、
前記座面に対する前記テーパー状部の下降傾斜角度が２０〜４０度の範囲であり、
前記座面に向けて前記崖部が上昇する傾斜角度が８０〜９０度の範囲であることを特徴とするねじ。 A screw comprising a head portion, a shaft portion extending vertically downward from the center position of the seat surface of the head portion, and a shaft portion provided with a thread groove on the outer peripheral surface,
The screw is to be tightened with respect to a member to be tightened by rotating in a rotating tightening direction along a circumferential direction around the shaft portion,
On the seat surface, at least one protruding portion is formed to project along the rotation tightening direction,
The ridge portion is a tapered portion that is inclined downward from the seat surface in a direction facing the rotational tightening direction, and is raised in the rotational tightening direction from a lower end of the tapered portion toward the seat surface. It consists of a sloping cliff,
The descending inclination angle of the tapered portion with respect to the seat surface is in the range of 20 to 40 degrees,
A screw, wherein an inclination angle of the cliff rising toward the seat surface is in a range of 80 to 90 degrees.
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| JP2019000489A JP2020109306A (en) | 2019-01-07 | 2019-01-07 | Screw or bolt fastening structure and screw |
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| JP2019000489A JP2020109306A (en) | 2019-01-07 | 2019-01-07 | Screw or bolt fastening structure and screw |
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|---|---|---|---|---|
| JPS489856U (en) * | 1971-06-16 | 1973-02-03 | ||
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| US5183359A (en) * | 1992-05-12 | 1993-02-02 | Illinois Tool Works Inc. | Rotary fastener with anti-strip-out nibs |
| JP2000205229A (en) * | 1999-01-19 | 2000-07-25 | Morio Tanmachi | Locking nut and locking bolt |
| JP2001234917A (en) * | 2000-02-23 | 2001-08-31 | Iwata Bolt Kk | Self-locking bolt |
| JP2002235723A (en) * | 2001-02-13 | 2002-08-23 | K M Seiko Kk | Structure for preventing corotation of screw |
| JP2004011918A (en) * | 2003-10-06 | 2004-01-15 | Iwata Bolt Kk | Self-locking bolt |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS489856U (en) * | 1971-06-16 | 1973-02-03 | ||
| JPS50148455U (en) * | 1974-05-28 | 1975-12-09 | ||
| US5183359A (en) * | 1992-05-12 | 1993-02-02 | Illinois Tool Works Inc. | Rotary fastener with anti-strip-out nibs |
| JP2000205229A (en) * | 1999-01-19 | 2000-07-25 | Morio Tanmachi | Locking nut and locking bolt |
| JP2001234917A (en) * | 2000-02-23 | 2001-08-31 | Iwata Bolt Kk | Self-locking bolt |
| JP2002235723A (en) * | 2001-02-13 | 2002-08-23 | K M Seiko Kk | Structure for preventing corotation of screw |
| JP2004011918A (en) * | 2003-10-06 | 2004-01-15 | Iwata Bolt Kk | Self-locking bolt |
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