JP2009287642A - Band for fixing boot - Google Patents

Band for fixing boot Download PDF

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JP2009287642A
JP2009287642A JP2008139721A JP2008139721A JP2009287642A JP 2009287642 A JP2009287642 A JP 2009287642A JP 2008139721 A JP2008139721 A JP 2008139721A JP 2008139721 A JP2008139721 A JP 2008139721A JP 2009287642 A JP2009287642 A JP 2009287642A
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boot
fixing
circumferential direction
fixing member
end portions
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Japanese (ja)
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Masato Nagahisa
正登 長久
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NTN Corp
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NTN Corp
NTN Toyo Bearing Co Ltd
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Priority to JP2008139721A priority Critical patent/JP2009287642A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To shorten a time for a fixing work of a boot for a universal joint, and to suppress deterioration in durability of the boot or a boot fixing band. <P>SOLUTION: The boot fixing band for the boot for a universal joint is constituted of a fixing member 1 and a fastening member 2. The fixing member 1 is disposed along a circumferential direction of a boot cylinder part 4 to press an outer circumferential surface of a boot cylinder part 4. The fastening member 2 is disposed separately from the fixing member 1, and connects both end parts 1a, 1c in the circumferential direction of the cylinder part 4 of the fixing member 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、例えば、自動車の等速自在継手用ブーツを固定するために使用されるブーツ固定用バンドに関する。   The present invention relates to a boot fixing band used for fixing, for example, a boot for a constant velocity universal joint of an automobile.

周知のように、自動車のドライブシャフトなどに使用される等速自在継手には、継手内部に封入されたグリースの漏れ出し防止や継手内部への異物侵入防止を目的として蛇腹状のブーツが装着される。この種のブーツは、その両端の円筒部が等速自在継手の外側継手部材及びシャフトにそれぞれ嵌合されると共に、その円筒部の周囲がバンドで締め付けられて固定される。   As is well known, constant velocity universal joints used in automobile drive shafts are fitted with bellows-shaped boots for the purpose of preventing leakage of grease sealed inside the joint and preventing foreign matter from entering the joint. The In this type of boot, the cylindrical portions at both ends thereof are respectively fitted to the outer joint member and the shaft of the constant velocity universal joint, and the periphery of the cylindrical portion is fastened and fixed with a band.

このブーツ固定用バンドは、一般的には特許文献１に示すように、帯状であり、両端部に互いに係合可能な爪と孔と、該爪と孔との間にいわゆる耳部と呼ばれる張出部が形成されている。ブーツの固定を行なう場合、ブーツ円筒部を囲むように屈曲させ両端の爪と孔を係合させて環状に連結させた後、耳部を加締めることによりバンドを縮径させブーツ円筒部を締め付ける。
特開２００５−６１５８６号公報 This boot fixing band is generally in the form of a band as shown in Patent Document 1, and a so-called ear portion between a nail and a hole that can be engaged with each other at both ends and the nail and the hole. A protruding portion is formed. When fixing the boot, bend it so that it surrounds the boot cylindrical part, engage the claws and holes on both ends and connect them in an annular shape, then tighten the ear by tightening the ear and tighten the boot cylindrical part .
JP 2005-61586 A

しかし、このブーツ固定用バンドは、ブーツの固定を行なうために環状とする場合に、ブーツ円筒部外周面に対して隙間が少ない状態で、バンドの一端を他端に対しブーツの円筒部を一周余りさせるため、作業が難しく時間を要していた。また、環状にする際の連結部分が一箇所であるため、１箇所の連結部分周辺に応力が集中する等してブーツ円筒部又はブーツ固定用バンドにおいて周方向で応力が不均一になる。これがブーツ円筒部又はブーツ固定用バンド自体の劣化の原因になり耐久性低下の可能性があった。これらの問題は、等速自在継手用ブーツに限らず、自在継手用ブーツの固定に使用されるブーツ固定用バンドに共通のものである。   However, when the boot fixing band is formed in an annular shape for fixing the boot, the boot cylindrical portion makes one round with respect to the other end of the band with respect to the outer peripheral surface of the boot cylindrical portion. It was difficult and time consuming because of the excess. Further, since there is only one connecting portion when the ring is formed, the stress becomes non-uniform in the circumferential direction in the boot cylindrical portion or the boot fixing band because stress concentrates around one connecting portion. This may cause deterioration of the boot cylindrical portion or the boot fixing band itself, which may reduce durability. These problems are not limited to constant velocity universal joint boots, but are common to boot fixing bands used for fixing universal joint boots.

本発明は、上記事情に鑑み、自在継手用ブーツの固定作業時間を短縮化することとブーツ又はブーツ固定用バンドの耐久性低下を抑制することを課題とする。   In view of the above circumstances, an object of the present invention is to shorten the fixing work time of a universal joint boot and to suppress a decrease in durability of a boot or a boot fixing band.

前記課題を解決するため、請求項１の発明は、自在継手用ブーツの円筒部の周方向に沿って配置され前記円筒部の周面を押圧する固定部材と、該固定部材と別体であって前記固定部材の前記周方向の両端部を連結可能な留め部材とを備えたものである。   In order to solve the above problems, the invention of claim 1 is a fixing member that is arranged along the circumferential direction of the cylindrical portion of the universal joint boot and presses the peripheral surface of the cylindrical portion, and is separate from the fixing member. And a fastening member that can connect both ends of the fixing member in the circumferential direction.

請求項１の発明によれば、ブーツの固定を行なう場合に、固定部材の一端を他端に対しブーツの円筒部を一周させる必要がないため、作業が容易となり作業時間を短縮可能である。また、ブーツの固定を行なう場合の連結部分が固定部材の両端部の２箇所であるため、連結部分が１箇所の場合のように１箇所の連結部分周辺に応力が集中すること等がない。従って、ブーツ円筒部又はブーツ固定用バンドにおいて周方向で応力が不均一になることが抑制される。これにより、ブーツ円筒部又はブーツ固定用バンド自体の耐久性低下が抑制される。また、異なる径のブーツ円筒部を固定する場合に、固定部材のサイズのみ変更し、留め部材を共用化することができるので、ブーツ固定用バンドの製造コストを削減することができる。   According to the first aspect of the present invention, when the boot is fixed, it is not necessary to make one round of the cylindrical portion of the boot with respect to the other end of the fixing member, so that the work is facilitated and the working time can be shortened. Further, since there are two connecting portions at both ends of the fixing member when fixing the boot, there is no concentration of stress around one connecting portion as in the case of one connecting portion. Therefore, it is possible to suppress uneven stress in the circumferential direction in the boot cylindrical portion or the boot fixing band. Thereby, the durability fall of the boot cylindrical part or the boot fixing band itself is suppressed. In addition, when fixing boot cylindrical portions having different diameters, only the size of the fixing member can be changed and the fastening member can be shared, so that the manufacturing cost of the boot fixing band can be reduced.

請求項２の発明は、請求項１の発明において、前記固定部材における前記周方向の両端部の外面に、前記留め部材における前記周方向の両端部の内面を係合可能にしたものである。   According to a second aspect of the present invention, in the first aspect of the present invention, the outer surfaces of both end portions in the circumferential direction of the fixing member can be engaged with inner surfaces of both end portions in the circumferential direction of the fastening member.

請求項２の発明によれば、留め部材の周方向両端部がブーツ円筒部の外周面を押圧することがないので、ブーツ円筒部の応力の不均一化を抑制できる。   According to the invention of claim 2, since both end portions in the circumferential direction of the fastening member do not press the outer peripheral surface of the boot cylindrical portion, it is possible to suppress uneven stress in the boot cylindrical portion.

請求項３の発明は、請求項１又は２の発明において、前記留め部材の前記周方向の中間部に、前記円筒部の径方向外方にＵ字状に屈曲して突出した塑性変形可能な張出部を設け、該張出部の一対の基部を前記周方向に互いに接近するように加圧して塑性変形させることにより前記固定部材の前記周方向の両端部を互いに引き合わせるようにしたものである。   According to a third aspect of the present invention, in the first or second aspect of the present invention, the plastic member can be plastically deformed at the intermediate portion in the circumferential direction of the fastening member and bent and protruded in a U shape radially outward of the cylindrical portion. A projecting portion is provided, and a pair of base portions of the projecting portion are pressed and plastically deformed so as to approach each other in the circumferential direction so that both end portions in the circumferential direction of the fixing member are pulled together. It is.

請求項３の発明によれば、張出部を設けていない場合より、固定部材の両端部を留め部材により連結する際の固定部材とブーツ円筒部との隙間を大きくすることができる。これにより連結作業が容易になり、連結作業の時間が短縮可能である。   According to the third aspect of the present invention, the gap between the fixing member and the boot cylindrical portion when the both end portions of the fixing member are connected by the fastening member can be made larger than when no overhanging portion is provided. As a result, the connecting operation becomes easy, and the time for the connecting operation can be shortened.

請求項４の発明は、請求項１〜３の何れか一の発明において、前記固定部材における前記周方向の両端部の外面と前記留め部材における前記周方向の両端部の内面の一方に爪部を設けると共に、他方に前記爪部を係合可能な孔部を設けたものである。   According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the claw portion is provided on one of the outer surface of the circumferential end portions of the fixing member and the inner surface of the circumferential end portions of the fastening member. And a hole that can be engaged with the claw portion is provided on the other side.

請求項４の発明によれば、爪部と孔部の係合により固定部材と留め部材とを容易に連結することができる。   According to invention of Claim 4, a fixing member and a fastening member can be easily connected by engagement of a nail | claw part and a hole.

請求項５の発明は、請求項４の発明において、前記爪部を前記一方の部材における前記周方向の両端部のそれぞれで複数設け、前記孔部を前記他方の部材における前記周方向の両端部のそれぞれで複数設けたものである。   According to a fifth aspect of the present invention, in the fourth aspect of the invention, a plurality of the claw portions are provided at each of both end portions in the circumferential direction of the one member, and the hole portions are both end portions in the circumferential direction of the other member. A plurality of each is provided.

請求項５の発明によれば、固定部材と留め部材とをより強力に連結することができる。また、固定部材と留め部材の両端部のそれぞれにおいて係合力が分散されるので、固定部材の両端及びその周辺のブーツ円筒部における応力も分散される。すなわち、固定部材とブーツ円筒部の応力の不均一化が抑制される。   According to invention of Claim 5, a fixing member and a fastening member can be connected more strongly. In addition, since the engaging force is dispersed at each of the both ends of the fixing member and the fastening member, the stress in the boot cylindrical portion at both ends of the fixing member and its periphery is also dispersed. That is, non-uniform stress in the fixing member and the boot cylindrical portion is suppressed.

請求項６の発明は、請求項４又は５の発明において、前記固定部材における前記周方向の両端部間を通る対称軸線に関し、前記爪部、孔部及び張出部を対称に設けたものである。   The invention of claim 6 is the invention according to claim 4 or 5, wherein the claw portion, the hole portion and the overhang portion are provided symmetrically with respect to a symmetrical axis line passing between both ends of the fixing member in the circumferential direction. is there.

請求項６の発明によれば、ブーツ円筒部又はブーツ固定用バンドにおいて周方向で応力が不均一になることを効果的に抑制することが可能である。   According to the sixth aspect of the present invention, it is possible to effectively suppress uneven stress in the circumferential direction in the boot cylindrical portion or the boot fixing band.

本発明によれば、自在継手用ブーツの固定作業時間を短縮化することとブーツ又はブーツ固定用バンドの耐久性低下を抑制することができる。   According to the present invention, it is possible to shorten the fixing work time of the universal joint boot and to suppress the decrease in the durability of the boot or the boot fixing band.

以下、本発明を実施するための最良の形態について説明する。   Hereinafter, the best mode for carrying out the present invention will be described.

図１は、本発明の実施形態のブーツ固定用バンドを示す。このブーツ固定用バンドは、固定部材１と留め部材２を主な構成要素とする。固定部材１と留め部材２の材料は、例えば、ステンレス鋼である。   FIG. 1 shows a boot fixing band according to an embodiment of the present invention. The boot fixing band includes a fixing member 1 and a fastening member 2 as main components. The material of the fixing member 1 and the fastening member 2 is, for example, stainless steel.

固定部材１は一定の厚さと一定の幅を有するバンド状であり、図２は固定部材１を直線状に展開した状態を示す図である。固定部材１における長さ方向の一方の端部１ａはバンド長さ方向に突出する凸部１ｂを有し、長さ方向の他方の端部１ｃは長さ方向に凹んでいる凹部１ｄを有する。凸部１ｂと凹部１ｄは、端部１ａ，１ｃを対向させた場合に、互いに嵌合可能な形状であり、本実施形態では平面視で矩形状を成す。端部１ａ，１ｃはそれぞれ、１個の大爪部１ｅと２個の互いに同形状の小爪部１ｆを有する。これらの爪部１ｅ，１ｆは固定部材１を切り起こして形成されている。固定部材１の長さ方向の中央側から大爪部１ｅ、小爪部１ｆの順に形成されている。   The fixing member 1 has a band shape having a certain thickness and a certain width, and FIG. 2 is a diagram showing a state in which the fixing member 1 is developed linearly. One end 1a in the length direction of the fixing member 1 has a protrusion 1b protruding in the band length direction, and the other end 1c in the length direction has a recess 1d recessed in the length direction. The convex portion 1b and the concave portion 1d have shapes that can be fitted to each other when the end portions 1a and 1c are opposed to each other. In the present embodiment, the convex portion 1b and the concave portion 1d have a rectangular shape in plan view. Each of the end portions 1a and 1c has one large claw portion 1e and two small claw portions 1f having the same shape. These claw portions 1 e and 1 f are formed by cutting and raising the fixing member 1. A large claw portion 1e and a small claw portion 1f are formed in this order from the center side in the length direction of the fixing member 1.

図２（Ｂ）に示すように、大爪部１ｅは、バンド面１ｈから垂直に突出する基部と、その先端から固定部材１の長さ方向中央側に延出すると共に中央側に移行するに従ってバンド面１ｈから離隔する先端部とを有する。大爪部１ｅの基部は、中央側にバンド面１ｈに垂直な面１ｅ１を有する。また、小爪部１ｆは、固定部材１の長さ方向中央側に移行するに従って漸次バンド面１ｈから突出し、中央側にバンド面１ｈに垂直な面１ｆ１を有する。端部１ａ，１ｃのそれぞれにおいて、大爪部１ｅの垂直面１ｅ１と、２つの小爪部１ｆの垂直面１ｆ１は、固定部材１長さ方向に等間隔である。爪部１ｅ，１ｆは全て、幅方向中央の位置である。端部１ａ，１ｃの爪部１ｅ，１ｆは、固定部材１の長さ方向の端面１ｇ，１ｉを基準として長さ方向で中央の面に関して、対称の位置かつ対称の形状である。   As shown in FIG. 2 (B), the large claw portion 1e has a base portion that protrudes perpendicularly from the band surface 1h, and extends from the tip to the center in the length direction of the fixing member 1 and moves toward the center. And a tip portion spaced from the band surface 1h. The base portion of the large claw portion 1e has a surface 1e1 perpendicular to the band surface 1h on the center side. Further, the small claw portion 1f gradually protrudes from the band surface 1h as it moves to the center side in the length direction of the fixing member 1, and has a surface 1f1 perpendicular to the band surface 1h on the center side. In each of the ends 1a and 1c, the vertical surface 1e1 of the large claw portion 1e and the vertical surfaces 1f1 of the two small claw portions 1f are equally spaced in the length direction of the fixing member 1. The claw portions 1e and 1f are all at the center in the width direction. The claw portions 1e and 1f of the end portions 1a and 1c have a symmetrical position and a symmetrical shape with respect to the central surface in the length direction with reference to the end surfaces 1g and 1i in the length direction of the fixing member 1.

留め部材２は、図３に示すように略一定の幅と一定の厚さの短冊状である。留め部材２の幅は、固定部材１の幅と略同一である。留め部材２における長さ方向の両方の端部２ａ，２ｂは留め部材２の長さ方向中央部に対し同じ側に湾曲しており、側面視で互いに同一の曲率の部分円弧状を成す。端部２ａ，２ｂは、６個の互いに同形状の孔部２ｃを有する。孔部２ｃは、側面視で端部２ａ，２ｂにおいてそれぞれの円弧形状に対し垂直に貫通する貫通孔である。孔部２ｃは、その各辺が留め部材２の短冊形状の各辺に平行な矩形状を成し、その大きさは孔部２ｃの貫通方向で同じである。端部２ａ，２ｂのそれぞれにおいて、端部２ａ，２ｂの円弧形状の周方向に孔部２ｃは等間隔であり、この間隔は、端部２ａ，２ｂの両方で同一である。端部２ａ，２ｂのそれぞれにおいて、孔部２ｃにおける端部２ａ，２ｂの円弧形状径方向外方側の開口端のうち、留め部材２の長さ方向中央部とは反対側の稜線２ｃ１は、端部２ａ，２ｂの円弧形状周方向で等間隔である。この間隔は端部２ａ，２ｂの両方で同一である。   As shown in FIG. 3, the fastening member 2 has a strip shape having a substantially constant width and a constant thickness. The width of the fastening member 2 is substantially the same as the width of the fixing member 1. Both end portions 2a, 2b in the length direction of the fastening member 2 are curved to the same side with respect to the central portion in the length direction of the fastening member 2, and form partial arcs having the same curvature in a side view. The end portions 2a and 2b have six holes 2c having the same shape. The hole 2c is a through-hole penetrating perpendicularly to each arc shape at the ends 2a and 2b in a side view. The hole portion 2c has a rectangular shape in which each side is parallel to each strip-shaped side of the fastening member 2, and the size thereof is the same in the penetration direction of the hole portion 2c. In each of the end portions 2a and 2b, the hole portions 2c are equally spaced in the circumferential direction of the arc shape of the end portions 2a and 2b, and this interval is the same in both the end portions 2a and 2b. In each of the end portions 2a and 2b, among the opening ends of the end portions 2a and 2b in the hole portion 2c on the outer side in the arc shape radial direction, the ridge line 2c1 opposite to the central portion in the length direction of the fastening member 2 is The ends 2a and 2b are equally spaced in the circumferential direction of the arc shape. This spacing is the same at both ends 2a, 2b.

留め部材２の長さ方向の中央には、端部２ａ，２ｂが湾曲している側とは反対側にＵ字状に屈曲して突出している張出部２ｄが設けられている。張出部２ｄにおける留め部材２の長さ方向中央には、端部２ａ，２ｂが湾曲している側に凹むと共に平面視で略矩形状の凹部２ｅが形成されている。留め部材２の形状は、平面視及び側面視で左右対称である。   At the center of the fastening member 2 in the length direction, an overhanging portion 2d that is bent and protrudes in a U shape is provided on the side opposite to the side where the end portions 2a and 2b are curved. At the center in the length direction of the fastening member 2 in the overhang portion 2d, a concave portion 2e having a substantially rectangular shape in plan view is formed while the end portions 2a and 2b are recessed on the curved side. The shape of the fastening member 2 is bilaterally symmetric in plan view and side view.

上記構成のブーツ固定用バンドによるブーツの固定作業は、以下のように行なわれる。まず、図１に示すように、固定部材１を等速自在継手の外側継手部材３に嵌合させたブーツの円筒部４における外周面の周囲に配置する。この場合、バンドの長さ方向を円筒部４の周方向に合わせ、爪部１ｅ，１ｆが形成されているバンド面１ｈとは反対側のバンド面１ｊをブーツ円筒部４の外周面に対向させる。   The boot fixing operation by the boot fixing band having the above-described configuration is performed as follows. First, as shown in FIG. 1, the fixing member 1 is arranged around the outer peripheral surface of the cylindrical portion 4 of the boot fitted with the outer joint member 3 of the constant velocity universal joint. In this case, the band length direction is aligned with the circumferential direction of the cylindrical portion 4, and the band surface 1 j opposite to the band surface 1 h on which the claw portions 1 e and 1 f are formed is opposed to the outer peripheral surface of the boot cylindrical portion 4. .

この状態から、手作業により、端部１ａ，１ｃを接近させる（矢印Ａ）と同時に、留め部材２を円筒部４径方向外方から端部１ａ，１ｃに接近させ（矢印Ｂ）て、爪部１ｅ，１ｆと孔部２ｃを嵌合させる。詳述すれば、最初に、固定部材１の大爪部１ｅの先端部を止め部材２の孔部２ｃに嵌合させる。固定部材１の弾性力により、大爪部１ｅの先端部の形状に沿って嵌合は略自動的に進行していく。すると、大爪部１ｅの基部が嵌合開始後、小爪部１ｆの嵌合が開始し、爪部１ｅ，１ｆの嵌合が略同時に終了する。これにより留め部材２の孔部２ｃが、固定部材１の爪部１ｅ，１ｆと係合する（図４参照）。これにより、留め部材２は固定部材１の両端部１ａ，１ｃを連結する。この時、凸部１ｂと凹部１ｄは一部嵌合する。   From this state, the end portions 1a and 1c are moved closer to each other by hand (arrow A), and at the same time, the fastening member 2 is moved closer to the ends 1a and 1c from the outer side of the cylindrical portion 4 in the radial direction (arrow B). The parts 1e and 1f and the hole 2c are fitted. More specifically, first, the tip end portion of the large claw portion 1 e of the fixing member 1 is fitted into the hole portion 2 c of the stop member 2. Due to the elastic force of the fixing member 1, the fitting proceeds substantially automatically along the shape of the tip of the large claw portion 1e. Then, after the base portion of the large claw portion 1e is started to be fitted, the fitting of the small claw portion 1f is started, and the fitting of the claw portions 1e and 1f is finished almost simultaneously. Thereby, the hole 2c of the fastening member 2 engages with the claw portions 1e and 1f of the fixing member 1 (see FIG. 4). Thereby, the fastening member 2 connects the both ends 1a and 1c of the fixing member 1. At this time, the convex portion 1b and the concave portion 1d are partially fitted.

この状態で、端部２ａ、２ｂにおける孔部２ｃは、端部１ａ，１ｃにおける大爪部１ｅの基部の垂直面１ｅ１と２個の小爪部１ｆの垂直面１ｆ１を係止している。固定部材１の端面１ｇ，１ｉ間の円筒部４の周方向中央位置と円筒部４の軸Ｏとを通る面Ｐに関し、爪部１ｅ，１ｆ、孔部２ｃ及び張出部２ｄは、対称の位置かつ対称の形状である。換言すれば、固定部材１における端部１ａ，１ｃは対称であり、その両端部１ａ，１ｃの対称軸線に関し、爪部１ｅ，１ｆ、孔部２ｃ及び張出部２ｄは、対称に設けられている。また、固定部材１における端部１ａ，１ｃが、留め部材２における端部２ａ，２ｂより円筒部４の径方向内方になっている。   In this state, the hole 2c in the end portions 2a and 2b engages the vertical surface 1e1 of the base portion of the large claw portion 1e and the vertical surfaces 1f1 of the two small claw portions 1f in the end portions 1a and 1c. The claw portions 1e, 1f, the hole portion 2c, and the overhang portion 2d are symmetrical with respect to the surface P passing through the circumferential center position of the cylindrical portion 4 between the end faces 1g, 1i of the fixing member 1 and the axis O of the cylindrical portion 4. It is a position and symmetrical shape. In other words, the end portions 1a and 1c of the fixing member 1 are symmetrical, and the claw portions 1e and 1f, the hole portion 2c and the overhang portion 2d are provided symmetrically with respect to the symmetry axis of the both end portions 1a and 1c. Yes. Further, the end portions 1 a and 1 c in the fixing member 1 are inward in the radial direction of the cylindrical portion 4 from the end portions 2 a and 2 b in the fastening member 2.

このように、固定部材１において長さ方向中央側に大爪部１ｅが形成されているため、孔部２ｃと爪部１ｅ，１ｆの嵌合作業は、孔部２ｃと大爪部１ｅの先端が嵌合すれば略自動的に終了する。すなわち、孔部２ｃと爪部１ｅ，１ｆの嵌合作業が容易化される。   Thus, since the large claw portion 1e is formed on the center side in the length direction in the fixing member 1, the fitting operation of the hole portion 2c and the claw portions 1e and 1f is performed at the tip of the hole portion 2c and the large claw portion 1e. If it fits, it will be complete | finished substantially automatically. That is, the fitting operation between the hole 2c and the claw portions 1e and 1f is facilitated.

図４の状態から、治具（図示省略）等により、張出部２ｄの一対の基部を、円筒部４の周方向に互いに接近するように加圧して塑性変形させる（矢印Ｃ）。これにより、固定部材１の端部１ａ、１ｃは互いに更に接近する。凸部１ｂと凹部１ｄが互いに全体が嵌合し、端面１ｇと端面１ｉがそれぞれ対向する面と当接した時点で、ブーツの固定作業は終了する（図５）。この状態で固定部材１のバンド面１ｊは、円筒部４の外周面を押圧している。   From the state shown in FIG. 4, the pair of base portions of the projecting portion 2 d are pressed and plastically deformed by a jig (not shown) or the like so as to approach each other in the circumferential direction of the cylindrical portion 4 (arrow C). As a result, the end portions 1a and 1c of the fixing member 1 further approach each other. When the convex portion 1b and the concave portion 1d are fitted to each other and the end surface 1g and the end surface 1i come into contact with the opposing surfaces, the fixing operation of the boot is finished (FIG. 5). In this state, the band surface 1 j of the fixing member 1 presses the outer peripheral surface of the cylindrical portion 4.

この状態で、端部２ａ、２ｂにおける孔部２ｃは、端部１ａ，１ｃにおける大爪部１ｅの基部の垂直面１ｅ１と小爪部１ｆの垂直面１ｆ１を係止している。詳述すると、大爪部１ｅの基部の垂直面１ｅ１が、孔部２ｃの開口端の稜線２ｃ１で係止されている。小爪部１ｆの垂直面１ｆ１における円筒部４径方向外方端が、孔部２ｃの側面に係止されている。このようになるように、固定部材１単体で直線状に展開した状態（図２参照）での垂直面１ｅ１，垂直面１ｆ１間の長さ方向間隔は設定されている。また、このようになるように、留め部材２単体の状態（図３参照）での孔部２ｃ（稜線２ｃ１）間の端部２ａ，２ｂの円弧形状周方向の間隔は設定されている。   In this state, the hole 2c in the ends 2a and 2b engages the vertical surface 1e1 of the base of the large claw 1e and the vertical surface 1f1 of the small claw 1f in the ends 1a and 1c. More specifically, the vertical surface 1e1 of the base of the large claw portion 1e is locked by the ridgeline 2c1 at the opening end of the hole 2c. An outer end of the cylindrical portion 4 in the radial direction on the vertical surface 1f1 of the small claw portion 1f is engaged with a side surface of the hole 2c. As described above, the distance in the length direction between the vertical surfaces 1e1 and 1f1 in a state where the fixing member 1 is developed in a straight line (see FIG. 2) is set. Moreover, the space | interval of the circular arc shape circumferential direction of the edge parts 2a and 2b between the hole parts 2c (ridgeline 2c1) in the state (refer FIG. 3) of the fastening member 2 single-piece | unit is set so that it may become like this.

このように孔部２ｃが、垂直面１ｅ１，１ｆ１を係止することにより、この状態での留め部材２の固定部材１を係合する力が端部２ａ，２ｂのそれぞれで、３箇所に略均等に分散される。従って、留め部材２の固定部材１を係合する力が固定部材１の端部１ａ，１ｃのそれぞれで、３箇所に略均等に分散される。これにより、固定部材１の端部１ａ，１ｃが円筒部４を固定する力も、端部１ａ，１ｃのそれぞれで３箇所に略均等に分散される。よって、固定部材１の端部１ａ，１ｃと端部１ａ，１ｃの周辺の円筒部４における応力の不均一化が抑制され、応力の不均一化による劣化が抑制される。   In this way, the hole 2c locks the vertical surfaces 1e1 and 1f1, so that the force for engaging the fixing member 1 of the fastening member 2 in this state is approximately at three positions in each of the end portions 2a and 2b. Evenly distributed. Accordingly, the force for engaging the fixing member 1 of the fastening member 2 is distributed substantially evenly at three locations at each of the end portions 1 a and 1 c of the fixing member 1. As a result, the forces at which the end portions 1a and 1c of the fixing member 1 fix the cylindrical portion 4 are also distributed substantially evenly at three locations in each of the end portions 1a and 1c. Therefore, nonuniform stress is suppressed in the end portions 1a and 1c of the fixing member 1 and the cylindrical portion 4 around the end portions 1a and 1c, and deterioration due to the nonuniform stress is suppressed.

また、この状態で、小爪部１ｆの先端は孔部２ｃの内部である。すなわち、端部２ａ，２ｂの円筒部４の径方向外周面から突出していない。これにより、端部２ａ，２ｂに接近するものに小爪部１ｆが干渉することが抑制される。   In this state, the tip of the small claw portion 1f is inside the hole 2c. That is, it does not protrude from the radially outer peripheral surface of the cylindrical portion 4 of the end portions 2a and 2b. Thereby, it is suppressed that the small nail | claw part 1f interferes with what approaches the edge parts 2a and 2b.

また、この状態で、留め部材２の端部２ａ，２ｂにおける円筒部４の径方向内方の面は、固定部材１のバンド面１ｈに全体が接触している。このようになるように、留め部材２単体の状態（図３参照）での側面視での端部２ａ，２ｂの部分円弧形状の曲率は設定されている。   Further, in this state, the radially inner surface of the cylindrical portion 4 at the ends 2 a and 2 b of the fastening member 2 is entirely in contact with the band surface 1 h of the fixing member 1. In this way, the curvature of the partial arc shape of the end portions 2a and 2b in the side view in the state of the fastening member 2 alone (see FIG. 3) is set.

留め部材２の張出部２ｄにおける凹部２ｅは、張出部２ｄの基部を塑性変形させる際に、張出部２ｄの先端側の変形を抑制する機能を有する。この機能により、張出部２ｄの基部を塑性変形させた後に、張出部２ｄの先端側が円筒部４径方向外方に突出することを抑制する。   The concave portion 2e in the projecting portion 2d of the fastening member 2 has a function of suppressing deformation of the distal end side of the projecting portion 2d when the base portion of the projecting portion 2d is plastically deformed. With this function, after the base portion of the overhang portion 2d is plastically deformed, the distal end side of the overhang portion 2d is prevented from protruding outward in the cylindrical portion 4 radial direction.

上記のように、ブーツの固定を行なう場合に、固定部材１の一方の端部１ａを他方の端部１ｃに対しブーツの円筒部４を一周させる必要がないため、作業が容易となり作業時間を短縮可能である。また、ブーツの固定を行なう場合の連結部分が固定部材１の両端部１ａ，１ｃの２箇所であるため、連結部分が１箇所の場合のように１箇所の連結部分周辺に応力が集中すること等がない。従って、ブーツ円筒部４又はブーツ固定用バンドにおいて周方向で応力が不均一になることが抑制される。これにより、ブーツ円筒部４又はブーツ固定用バンド自体の耐久性低下が抑制される。また、異なる径のブーツ円筒部４を固定する場合に、固定部材１のサイズのみ変更し、留め部材２を共用化することができるので、ブーツ固定用バンドの製造コストを削減することができる。   As described above, when the boot is fixed, it is not necessary to make one end 1a of the fixing member 1 round the cylindrical portion 4 of the boot with respect to the other end 1c. It can be shortened. In addition, since there are two connecting portions 1a and 1c on both ends 1a and 1c of the fixing member 1 when the boot is fixed, stress is concentrated around one connecting portion as in the case of one connecting portion. There is no etc. Accordingly, it is possible to suppress uneven stress in the circumferential direction in the boot cylindrical portion 4 or the boot fixing band. Thereby, the durability fall of the boot cylindrical part 4 or the boot fixing band itself is suppressed. Moreover, when fixing the boot cylindrical part 4 of a different diameter, since only the size of the fixing member 1 can be changed and the fastening member 2 can be shared, the manufacturing cost of the boot fixing band can be reduced.

上記実施形態では、固定部材１の爪部として端部１ａ，１ｃのそれぞれに１個の大爪部１ｅ，２個の小爪部１ｆを設けたが、本発明はこれに限定されるものではない。例えば、３個とも大爪部１ｅにしてもよい。この場合には、上記実施形態よりも、固定部材１と留め部材２との係合がより安定する。しかし、固定部材１と留め部材２との連結作業時に、３個の大爪部１ｅをほぼ同時に嵌合させるため、上記実施形態より作業が困難化し作業の長時間化する可能性がある。また、大爪部１ｅが増加したことにより大爪部１ｅが周囲に接近するものに干渉する可能性が増加する。   In the above embodiment, one large claw portion 1e and two small claw portions 1f are provided on the end portions 1a and 1c as the claw portions of the fixing member 1, but the present invention is not limited to this. Absent. For example, all three may be the large claw portions 1e. In this case, the engagement between the fixing member 1 and the fastening member 2 is more stable than in the above embodiment. However, since the three large claws 1e are fitted almost simultaneously at the time of connecting the fixing member 1 and the fastening member 2, the operation becomes more difficult than the above embodiment, and the operation may take a long time. In addition, since the large claws 1e are increased, the possibility that the large claws 1e interfere with an object that approaches the surroundings increases.

また、固定部材１の爪部は、大爪部１ｅ，２個の小爪部１ｆの形状に限定されない。例えばバンド面１ｈに垂直に突出する基部とその先端から基部に垂直に延出する先端部を有する形状でもよい。   Further, the claw portion of the fixing member 1 is not limited to the shape of the large claw portion 1e and the two small claw portions 1f. For example, it may have a shape having a base projecting perpendicularly to the band surface 1h and a tip extending perpendicularly from the tip to the base.

上記実施形態では、固定部材１と留め部材２の材料として、ステンレス鋼を例示したが、例えば、その他合金、鉄、等の金属としてもよい。   In the above-described embodiment, stainless steel is exemplified as the material of the fixing member 1 and the fastening member 2. However, for example, other materials such as an alloy and iron may be used.

上記実施形態では、爪部１ｅ，１ｆは、固定部材１を切り起こして形成したが、本発明は、これに限定されるものではなく、例えば、固定部材１とは、別体かつ別の材料で形成したものを、固定部材に取り付けてもよい。また、上記実施形態では、張出部２ｄは、留め部材２と一体に形成しているが、本発明は、これに限定されるものではなく、例えば、留め部材２とは、別体かつ別の材料で形成したものを、留め部材２の端部２ａ，２ｂに取り付けてもよい。   In the above embodiment, the claw portions 1e and 1f are formed by cutting and raising the fixing member 1. However, the present invention is not limited to this. For example, the fixing member 1 is a separate and different material. You may attach what was formed by to a fixing member. Moreover, in the said embodiment, although the overhang | projection part 2d is formed integrally with the fastening member 2, this invention is not limited to this, For example, it is separate and separate from the fastening member 2. Those formed of the above material may be attached to the end portions 2 a and 2 b of the fastening member 2.

上記実施形態では、凸部１ｂと凹部１ｄは平面視で矩形状を成すが、本発明はこれに限定されるものではなく、端部１ａ，１ｃを対向させた場合に、互いに嵌合可能な形状であればよい。例えば、半円形状、三角形状、台形状などでもよい。   In the said embodiment, although the convex part 1b and the recessed part 1d comprise rectangular shape by planar view, this invention is not limited to this, When the edge parts 1a and 1c are made to oppose, it can fit mutually Any shape is acceptable. For example, a semicircular shape, a triangular shape, a trapezoidal shape, or the like may be used.

上記実施形態では、留め部材２の孔部２ｃを、矩形状としたが、本発明はこれに限定されるものではなく、例えば、円形状、三角形状、台形状などでもよい。   In the said embodiment, although the hole 2c of the fastening member 2 was made into the rectangular shape, this invention is not limited to this, For example, circular shape, triangular shape, trapezoid shape, etc. may be sufficient.

上記実施形態では、留め部材２に係合した状態で、固定部材１における端部１ａ，１ｃは対称であり、その両端部１ａ，１ｃの対称軸線に関し、爪部１ｅ，１ｆ、孔部２ｃ及び張出部２ｄは、対称に設けられている。しかし、本発明は、これに限定されるものではなく、例えば、両端部１ａ，１ｃの対称軸線に関し、爪部１ｅ，１ｆ、孔部２ｃ及び張出部２ｄは、非対称に設けられてもよい。   In the above-described embodiment, the end portions 1a and 1c of the fixing member 1 are symmetric while being engaged with the fastening member 2, and the claw portions 1e and 1f, the hole portion 2c, The overhang portion 2d is provided symmetrically. However, the present invention is not limited to this. For example, the claw portions 1e and 1f, the hole portion 2c, and the overhang portion 2d may be provided asymmetrically with respect to the symmetry axis of the both end portions 1a and 1c. .

上記実施形態では、爪部１ｅ，１ｆを固定部材１の両端部１ａ，１ｃのそれぞれで複数設け、孔部２ｃを留め部材２における両端部２ａ，２ｂのそれぞれで複数設けたが、本発明はこれに限定されるものではない。例えば、大爪部１ｅを固定部材１の両端部１ａ，１ｃのそれぞれで単数設け、孔部２ｃを留め部材２における両端部２ａ，２ｂのそれぞれで単数設けてもよい。   In the above embodiment, a plurality of claw portions 1e and 1f are provided at each of both end portions 1a and 1c of the fixing member 1, and a plurality of hole portions 2c are provided at each of the both end portions 2a and 2b of the fastening member 2. It is not limited to this. For example, a single large claw portion 1 e may be provided at each of the both end portions 1 a and 1 c of the fixing member 1, and a single hole portion 2 c may be provided at each of the both end portions 2 a and 2 b of the fastening member 2.

上記実施形態は、本発明を自動車の等速自在継手用ブーツを締結するためのブーツ固定用バンドに適用したものであるが、本発明はこれに限定されない。即ち、本発明は自在継手用ブーツを固定するブーツ固定用バンド全てに適用可能である。   In the above embodiment, the present invention is applied to a boot fixing band for fastening a boot for a constant velocity universal joint of an automobile, but the present invention is not limited to this. That is, the present invention is applicable to all boot fixing bands for fixing universal joint boots.

本発明は、上記実施形態に限定されるものでは無く、その技術的思想の範囲内であれば、様々な変形が可能である。   The present invention is not limited to the above embodiment, and various modifications are possible within the scope of the technical idea.

本発明の実施形態に係るブーツ固定用バンドを示す図である。It is a figure which shows the band for boot fixing which concerns on embodiment of this invention. 本発明の実施形態に係るブーツ固定用バンドの固定部材を直線状に展開した状態を示す図であり、（Ａ）が平面図、（Ｂ）が側面図である。It is a figure which shows the state which expand | deployed linearly the fixing member of the band for boot fixing which concerns on embodiment of this invention, (A) is a top view, (B) is a side view. 本発明の実施形態に係るブーツ固定用バンドの留め部材を示す図であり、（Ａ）が平面図、（Ｂ）が側面図である。It is a figure which shows the fastening member of the band for boot fixing which concerns on embodiment of this invention, (A) is a top view, (B) is a side view. 本発明の実施形態に係るブーツ固定用バンドの固定部材と留め部材が連結した状態を示す図である。It is a figure which shows the state which the fixing member and fastening member of the band for boot fixing which concern on embodiment of this invention connected. 本発明の実施形態に係るブーツ固定用バンドによりブーツ円筒部が等速自在継手の外側継手部材に固定された状態を示す図である。It is a figure which shows the state by which the boot cylindrical part was being fixed to the outer joint member of the constant velocity universal joint by the boot fixing band which concerns on embodiment of this invention.

符号の説明Explanation of symbols

１ 固定部材
１ａ 固定部材の端部
１ｃ 固定部材の端部
１ｅ 大爪部
１ｆ 小爪部
１ｇ 固定部材の端面
１ｈ バンド面
１ｉ 固定部材の端面
２ 留め部材
２ａ 留め部材の端部
２ｂ 留め部材の端部
２ｃ 孔部
２ｄ 張出部
４ ブーツ円筒部 DESCRIPTION OF SYMBOLS 1 Fixed member 1a End part 1c of fixed member End part 1e of fixed member Large claw part 1f Small claw part 1g End surface 1h of fixed member Band surface 1i End surface 2 of fixed member 2clamp member 2a End part 2b of clamp member Part 2c Hole part 2d Overhang part 4 Boot cylindrical part

Claims (6)

自在継手用ブーツの円筒部の周方向に沿って配置され前記円筒部の周面を押圧する固定部材と、該固定部材と別体であって前記固定部材の前記周方向の両端部を連結可能な留め部材とを備えたブーツ固定用バンド。   A fixing member that is arranged along the circumferential direction of the cylindrical portion of the universal joint boot and presses the circumferential surface of the cylindrical portion, and can be connected to both ends in the circumferential direction of the fixing member, which are separate from the fixing member. A boot fixing band provided with a fastening member. 前記固定部材における前記周方向の両端部の外面に、前記留め部材における前記周方向の両端部の内面を係合可能にした請求項１に記載のブーツ固定用バンド。   2. The boot fixing band according to claim 1, wherein inner surfaces of both end portions in the circumferential direction of the fastening member can be engaged with outer surfaces of both end portions in the circumferential direction of the fixing member. 前記留め部材の前記周方向の中間部に、前記円筒部の径方向外方にＵ字状に屈曲して突出した塑性変形可能な張出部を設け、該張出部の一対の基部を前記周方向に互いに接近するように加圧して塑性変形させることにより前記固定部材の前記周方向の両端部を互いに引き合わせるようにした請求項１又は２に記載のブーツ固定用バンド。   A plastically deformable overhanging portion that is bent and protruded in a U shape radially outwardly of the cylindrical portion is provided at an intermediate portion in the circumferential direction of the fastening member, and a pair of base portions of the overhanging portion 3. The boot fixing band according to claim 1, wherein both ends of the fixing member in the circumferential direction are pulled together by applying pressure and plastic deformation so as to approach each other in the circumferential direction. 前記固定部材における前記周方向の両端部の外面と前記留め部材における前記周方向の両端部の内面の一方に爪部を設けると共に、他方に前記爪部を係合可能な孔部を設けた請求項１〜３の何れか一に記載のブーツ固定用バンド。   A claw portion is provided on one of the outer surface of both end portions in the circumferential direction of the fixing member and the inner surface of both end portions in the circumferential direction of the fastening member, and a hole portion capable of engaging the claw portion is provided on the other side. Item 4. A boot fixing band according to any one of Items 1 to 3. 前記爪部を前記一方の部材における前記周方向の両端部のそれぞれで複数設け、前記孔部を前記他方の部材における前記周方向の両端部のそれぞれで複数設けた請求項４に記載のブーツ固定用バンド。   The boot fixing according to claim 4, wherein a plurality of the claw portions are provided at each of both end portions in the circumferential direction of the one member, and a plurality of the hole portions are provided at each of both end portions in the circumferential direction of the other member. For band. 前記固定部材における前記周方向の両端部間を通る対称軸線に関し、前記爪部、孔部及び張出部を対称に設けた請求項４又は５に記載のブーツ固定用バンド。   6. The boot fixing band according to claim 4, wherein the claw portion, the hole portion, and the overhang portion are provided symmetrically with respect to an axis of symmetry passing between both ends of the fixing member in the circumferential direction.
JP2008139721A 2008-05-28 2008-05-28 Band for fixing boot Withdrawn JP2009287642A (en)

Priority Applications (1)

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JP2008139721A JP2009287642A (en) 2008-05-28 2008-05-28 Band for fixing boot

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101378683B1 (en) 2012-01-10 2014-03-27 현대위아 주식회사 clamping band for constant velocity joint
JP2014121220A (en) * 2012-12-19 2014-06-30 Sanwa Tekki Corp Attachment band for abnormal heating detection device at electric wire connection part, and abnormal heating detection device using the same
JP2019138437A (en) * 2018-02-15 2019-08-22 株式会社ジェイテクト Boot band

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101378683B1 (en) 2012-01-10 2014-03-27 현대위아 주식회사 clamping band for constant velocity joint
JP2014121220A (en) * 2012-12-19 2014-06-30 Sanwa Tekki Corp Attachment band for abnormal heating detection device at electric wire connection part, and abnormal heating detection device using the same
JP2019138437A (en) * 2018-02-15 2019-08-22 株式会社ジェイテクト Boot band
JP7003717B2 (en) 2018-02-15 2022-01-21 株式会社ジェイテクト Boot band

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