JP3153150U

JP3153150U - Anchor pin

Info

Publication number: JP3153150U
Application number: JP2009004152U
Authority: JP
Inventors: 豊司南田
Original assignee: 株式会社ミナミダ
Priority date: 2009-05-27
Filing date: 2009-05-27
Publication date: 2009-08-27
Anticipated expiration: 2019-05-27

Abstract

【課題】取付部分と軸部分との二部材により構成して、大型鍛造機又は熱間鍛造により一体成形する必要をなくし、安価で製作容易なアンカーピンを提供する。【解決手段】両端部に通孔２ａ，２ｂを有し、かつ中央部に平面視において後方にコ字状に凹む中央凹部２ｃと該中央凹部２ｃの中心部に貫通孔２ｄが形成された板状の取付体２と、前後両端に小径軸部３ａ，３ｂを有し、中間部に貫通孔２ｄに嵌入される支持軸部３ｃと、支持軸部３ｃの前端と小径軸部３ａとの間に外径が中央凹部２ｃの底幅よりも小径で厚みが中央凹部２ｃの深さとほぼ同一の鍔部３ｄとが形成された軸体３とにより構成する。軸体３の支持軸部３ｃを取付体２の貫通孔２ｄにその前面側から嵌入して鍔部３ｄを中央凹部２ｃに当接した状態で軸体３と取付体２とを熔接固定した。【選択図】図１To provide an anchor pin which is constituted by two members of an attachment portion and a shaft portion, eliminates the need for integral molding by a large forging machine or hot forging, and is easy to manufacture. A plate having through holes 2a and 2b at both ends, and a central recess 2c that is recessed backward in a U shape in plan view in the center and a through hole 2d formed in the center of the center recess 2c. Between the front end of the support shaft portion 3c and the small-diameter shaft portion 3a, the support shaft portion 3c having small-diameter shaft portions 3a and 3b at both front and rear ends, The shaft 3 is formed with a flange 3d having an outer diameter smaller than the bottom width of the central recess 2c and a thickness substantially the same as the depth of the central recess 2c. The shaft body 3 and the attachment body 2 were welded and fixed in a state where the support shaft portion 3c of the shaft body 3 was fitted into the through hole 2d of the attachment body 2 from the front side and the flange portion 3d was in contact with the central recess 2c. [Selection] Figure 1

Description

本考案はドラムブレーキのアンカーピンに関するものである。 The present invention relates to an anchor pin for a drum brake.

従来、ドラムブレーキのアンカーピンとしては、例えば図８の平面図及び図９の背面図に示すように、両端部に貫通孔１１ａ，１１ｂを有する取付部１１と、取付部１１の中間部から前方に突出する小径軸部１２と、取付部１１の中間部から後方に膨出する膨出部１３と、膨出部１３中央部からさらに後方に突出する大径軸部１４と小径軸部１５とが一体に成形された構成となっている。 Conventionally, as an anchor pin of a drum brake, for example, as shown in a plan view of FIG. 8 and a rear view of FIG. 9, a mounting portion 11 having through holes 11 a and 11 b at both ends, and a front portion from an intermediate portion of the mounting portion 11. A small-diameter shaft portion 12 protruding to the rear, a bulging portion 13 bulging rearward from the middle portion of the mounting portion 11, a large-diameter shaft portion 14 and a small-diameter shaft portion 15 projecting further rearward from the central portion of the bulging portion 13. Has a structure formed integrally.

そして、このアンカーピン１０の製造方法としては、金型を用いて一体成形により形成するようにしている。 And as a manufacturing method of this anchor pin 10, it is made to form by integral molding using a metal mold | die.

ところが、上記した従来のアンカーピン１０にあっては、その形状が非常に複雑であることから、金型により一体成形する場合、大型の鍛造機又は熱間鍛造により成形する必要があった。また、その形状が非常に複雑であることから、寸法精度が悪く、そのため仕上げ用の切削加工を別に必要としていた。その上、金型が高価で寿命も短く、そのため全体として不経済でコスト高となる問題を有していた。 However, since the above-described conventional anchor pin 10 has a very complicated shape, it has been necessary to form it by a large forging machine or hot forging when integrally forming it with a mold. In addition, since the shape is very complicated, the dimensional accuracy is poor, and therefore a cutting process for finishing is required separately. In addition, the mold is expensive and has a short lifespan, so that there is a problem that it is uneconomical and costly as a whole.

そこで、本考案は、取付部分と軸部分との二部材により構成することにより、高価な金型をもつ大型の鍛造機又は熱間鍛造により成形する必要をなくし、安価で製作容易なアンカーピンの提供を課題とする。 Therefore, the present invention eliminates the need for forming by a large forging machine having an expensive metal mold or hot forging by using two members of an attachment portion and a shaft portion. Offering is an issue.

上記した課題を解決するために、本願の請求項１記載の考案は、両端部に通孔２ａ，２ｂを有し、かつ中央部に貫通孔２ｄが形成された板状の取付体２と、上記貫通孔２ｄに嵌入される支持軸部３ｃと鍔部３ｄとを備えた軸体３とからなり、軸体３の支持軸部３ｃが取付体２の貫通孔２ｄにその前面側から嵌入されて鍔部３ｄが取付体２の中央部２ｃに当接した状態で軸体３と取付体２とが固定されていることを特徴とする。 In order to solve the above-described problem, the device according to claim 1 of the present application includes a plate-like mounting body 2 having through holes 2a and 2b at both ends and a through hole 2d formed at the center, The shaft 3 is provided with a support shaft portion 3c fitted into the through hole 2d and a flange portion 3d. The support shaft portion 3c of the shaft body 3 is fitted into the through hole 2d of the mounting body 2 from the front side. Thus, the shaft body 3 and the attachment body 2 are fixed in a state in which the flange portion 3d is in contact with the central portion 2c of the attachment body 2.

また、本願の請求項２記載の考案は、両端部に通孔２ａ，２ｂを有し、かつ中央部に平面視において後方にコ字状に凹む中央凹部２ｃと該中央凹部２ｃの中心部に貫通孔２ｄが形成された板状の取付体２と、上記貫通孔２ｄに嵌入される支持軸部３ｃと外径が中央凹部２ｃの底幅よりも小径で厚みが中央凹部２ｃの深さとほぼ同一の鍔部３ｄとを備えた軸体３とからなり、軸体３の支持軸部３ｃが取付体２の貫通孔２ｄにその前面側から嵌入されて鍔部３ｄが中央凹部２ｃに当接した状態で軸体３と取付体２とが熔接又は圧入固定又はカシメ止めされていることを特徴とする。 Further, the invention according to claim 2 of the present application has a through hole 2a, 2b at both ends, and a central recess 2c that is recessed backward in a U shape in plan view at the center and a central portion of the center recess 2c. The plate-like mounting body 2 in which the through-hole 2d is formed, the support shaft portion 3c fitted into the through-hole 2d, the outer diameter is smaller than the bottom width of the central recess 2c, and the thickness is substantially the same as the depth of the central recess 2c. The shaft body 3 is provided with the same flange portion 3d, and the support shaft portion 3c of the shaft body 3 is fitted into the through hole 2d of the mounting body 2 from the front surface side so that the flange portion 3d contacts the central recess portion 2c. In this state, the shaft body 3 and the mounting body 2 are welded, press-fitted, or crimped.

また、本願の請求項３記載の考案は、請求項１又は２における軸体３の取付体２への圧入固定に際して、軸体３の支持軸部３ｃの圧入基部に取付体２の貫通孔２ｄ部分の厚みとほぼ同寸法のスプライン部３ｅが設けられ、このスプライン部３ｅが上記貫通孔２ｄに圧入嵌合されていることを特徴とする。 Further, according to the invention described in claim 3 of the present application, when the shaft body 3 is press-fitted and fixed to the mounting body 2 in claim 1 or 2, the through hole 2d of the mounting body 2 is formed in the press-fit base portion of the support shaft portion 3c of the shaft body 3. A spline portion 3e having substantially the same size as the thickness of the portion is provided, and the spline portion 3e is press-fitted into the through hole 2d.

さらに、本願の請求項４記載の考案は、請求項１又は２における軸体３の取付体２への圧入固定に際して、取付体２の貫通孔２ｄが多角孔形状に形成されている一方、軸体３の支持軸部３ｃおける圧入基部に取付体２の貫通孔２ｄ部分の厚みとほぼ同寸法の多角形状の嵌合部３ｆが設けられ、この多角嵌合部３ｆが上記多角貫通孔２ｄに圧入嵌合されていることを特徴とする。 Further, in the invention according to claim 4 of the present application, when the shaft body 3 is press-fitted and fixed to the mounting body 2 in claim 1 or 2, the through hole 2d of the mounting body 2 is formed in a polygonal hole shape, The press-fit base portion of the support shaft portion 3c of the body 3 is provided with a polygonal fitting portion 3f having substantially the same size as the thickness of the through hole 2d portion of the mounting body 2, and this polygon fitting portion 3f is formed in the polygonal through hole 2d. It is characterized by being press-fitted.

本考案によれば、上記したようにアンカーピンが取付体２と軸体３との二部材から構成され、取付体２と軸体３とが熔接又は圧入固定又はカシメ止めなどにより固定されて一体化されているから、取付体２と軸体３との成形や加工が容易で、精度よく形成できる。また、金型を用いて取付体２と軸体３を形成する場合にも従来のように特別に大型の鍛造機を用いたり或いは熱間鍛造により成形したりする必要がなく、その上、複雑な形状で高価な金型も必要としないので安価であるし、長期にわたって使用することができるので経済的である。 According to the present invention, as described above, the anchor pin is composed of the two members of the mounting body 2 and the shaft body 3, and the mounting body 2 and the shaft body 3 are fixed integrally by welding, press-fitting fixing, caulking, or the like. Therefore, the mounting body 2 and the shaft body 3 can be easily molded and processed, and can be formed with high accuracy. Further, when the mounting body 2 and the shaft body 3 are formed using a mold, it is not necessary to use a specially large forging machine or to form by hot forging as in the prior art, and moreover, it is complicated. Since an expensive metal mold is not required, it is inexpensive and can be used over a long period of time, which is economical.

また、軸体３の取付体２への圧入固定手段として、軸体３の支持軸部３ｃの圧入基部にスプライン部３ｅを設けるようにすれば、スプライン部３ｅの貫通孔２ｄへの食い込みにより、単なる圧入固定のみに較べて回転方向に対しより強固に固定できるのでこのましい。 If the spline portion 3e is provided at the press-fit base portion of the support shaft portion 3c of the shaft body 3 as a press-fit fixing means of the shaft body 3 to the mounting body 2, the spline portion 3e bites into the through-hole 2d, This is preferable because it can be fixed more firmly in the direction of rotation than just press-fitting.

さらに、軸体３の取付体２への圧入固定手段として、取付体２の貫通孔２ｄを多角孔形状に形成する一方、軸体３の支持軸部３ｃおける圧入基部に多角形状の嵌合部３ｆを設けるようにした場合にも、単なる圧入固定のみに較べて回転方向に対しより強固に固定できるのでこのましい。 Further, as a means for press-fitting and fixing the shaft body 3 to the mounting body 2, the through-hole 2 d of the mounting body 2 is formed in a polygonal hole shape, while a polygonal fitting portion is formed on the press-fit base portion in the support shaft portion 3 c of the shaft body 3. Even if 3f is provided, it is preferable because it can be more firmly fixed in the rotational direction than in the case of simple press-fitting.

以下本考案の実施の形態を図面に基づいて説明する。 Embodiments of the present invention will be described below with reference to the drawings.

図１及び図２は、本考案に係るドラムブレーキのアンカーピンを示し、このアンカーピン１は円弧状で両端部に通孔２ａ，２ｂを有し、かつ中央部に平面視において後方にコ字状に凹む中央凹部２ｃと該中央凹部２ｃの中心部に貫通孔２ｄが形成された板状で鋼材などの金属製の取付体２と、前後に小径軸部３ａ，３ｂを有し、中間部に貫通孔２ｄに嵌入される支持軸部３ｃと、支持軸部３ｃの前端と小径軸部３ａとの間に外径が中央凹部２２ｃの底幅よりも小径で厚みが中央凹部２２ｃの深さとほぼ同一の鍔部３ｄとが形成された鋼材などの金属製の軸体３とからなる。そして、軸体３の支持軸部３ｃが取付体２の貫通孔２ｄにその前面側から嵌入されて鍔部３ｄが中央凹部２ｃに当接した状態で軸体３と取付体２とが熔接により固定されている。 1 and 2 show an anchor pin of a drum brake according to the present invention. This anchor pin 1 has an arc shape, has through holes 2a and 2b at both ends, and has a U-shape rearward in plan view in the center. A central concave portion 2c that is recessed in a plate shape, a plate-like metal attachment body 2 such as a steel material in which a through hole 2d is formed in the central portion of the central concave portion 2c, and small-diameter shaft portions 3a and 3b on the front and rear sides. The support shaft portion 3c inserted into the through-hole 2d, the outer diameter between the front end of the support shaft portion 3c and the small-diameter shaft portion 3a is smaller than the bottom width of the central recess 22c, and the thickness is the depth of the center recess 22c. It consists of a shaft 3 made of metal such as a steel material in which substantially the same flange 3d is formed. The shaft body 3 and the mounting body 2 are welded in a state in which the support shaft portion 3c of the shaft body 3 is fitted into the through hole 2d of the mounting body 2 from the front side and the flange portion 3d is in contact with the central concave portion 2c. It is fixed.

製造に際し、取付体２は、圧造成形機やプレス機などにより高精度に成形されて量産される。その場合、中央の貫通孔２ｄのみを形成し、両端部の通孔２ａ，２ｂは明けずに残しておく。また、軸体３は、多段式圧造成形機により高精度に成形されて量産される。そして、軸体３と取付体２とが熔接により固定される。その際、取付体２の前面と軸体３の鍔部３ｄの前面とが面一となり、前方側小径軸部３ａが取付体２の前面から前方に突出するように固定される。その後、固定された軸体３を基準にして取付体２の両端部に通孔２ａ，２ｂの孔加工が施される。これにより通孔２ａ，２ｂの軸体３に対する加工を高精度に行うことができる。なお、取付体２及び軸体３としては鋼材に限定されるものではなく、他の金属製部材を用いてもよいこと勿論である。 At the time of manufacture, the attachment body 2 is mass-produced by being molded with high accuracy by a forging machine or a press machine. In that case, only the central through hole 2d is formed, and the through holes 2a and 2b at both ends are left unclear. The shaft body 3 is molded with high accuracy by a multistage forging machine and mass-produced. The shaft body 3 and the attachment body 2 are fixed by welding. At that time, the front surface of the mounting body 2 and the front surface of the flange portion 3d of the shaft body 3 are flush with each other, and the front small-diameter shaft portion 3a is fixed so as to protrude forward from the front surface of the mounting body 2. Thereafter, the holes 2a and 2b are drilled at both ends of the mounting body 2 with the fixed shaft body 3 as a reference. Thereby, the process with respect to the shaft 3 of the through-holes 2a and 2b can be performed with high accuracy. The attachment body 2 and the shaft body 3 are not limited to steel materials, and other metal members may of course be used.

以上のように本考案のアンカーピンによれば、取付体２と軸体３との二部材から構成され、取付体２と軸体３とが熔接により固定されて一体化されるから、取付体２と軸体３との成形や加工が容易で、高精度に形成できる。また、圧造成形機により金型を用いて取付体２と軸体３を形成する場合にも、従来のように複雑な形状で高価な金型を必要としないので安価であるし、長期にわたって使用することができるので経済的である。 As described above, according to the anchor pin of the present invention, it is composed of two members, the attachment body 2 and the shaft body 3, and the attachment body 2 and the shaft body 3 are fixed and integrated by welding. The molding and processing of the shaft 2 and the shaft body 3 are easy and can be formed with high accuracy. In addition, when the mounting body 2 and the shaft body 3 are formed using a mold by a forging machine, it is inexpensive because it does not require an expensive mold with a complicated shape as in the conventional case, and it is used for a long time. It is economical because it can be done.

上記した実施の形態では、軸体３と取付体２との固定手段として、軸体３を取付体２に嵌入した後、熔接固定するようにしたけれども、図４に示すように軸体３の支持軸部３ｃの圧入基部に取付体２の貫通孔２ｄ部分の厚みとほぼ同寸法のスプライン部３ｅを設け、支持軸部３ｃのスプライン部３ｅを取付体２の貫通孔２ｄにスプライン嵌合するようにしてもよい。その場合、スプライン部３ｅを支持軸部３ｃよりもやや大きく形成すると共に、貫通孔２ｄに対しても離脱不能に嵌合できるようやや大きく形成しておく。斯く構成すれば、スプライン部３ｅの貫通孔２ｄへの食い込みにより、圧入のみに較べて回転方向に対しより強固に固定できる。 In the above-described embodiment, the shaft body 3 is fitted into the mounting body 2 and then fixed by welding as a fixing means for the shaft body 3 and the mounting body 2. However, as shown in FIG. A spline portion 3e having substantially the same size as the thickness of the through hole 2d portion of the mounting body 2 is provided at the press-fit base portion of the support shaft portion 3c, and the spline portion 3e of the support shaft portion 3c is spline-fitted into the through hole 2d of the mounting body 2. You may do it. In this case, the spline portion 3e is formed to be slightly larger than the support shaft portion 3c, and is also formed to be slightly larger so that it can be fitted to the through hole 2d so as not to be detached. If comprised in this way, it can fix more firmly with respect to a rotation direction by biting into the through-hole 2d of the spline part 3e compared with only press fit.

また、軸体３と取付体２との固定手段として、図５に示すように取付体２の貫通孔２ｄを六角孔などの多角孔形状に形成する一方、軸体３の支持軸部３ｃおける圧入基部に取付体２の貫通孔２ｄ部分の厚みとほぼ同寸法の六角孔などの多角孔形状の嵌合部３ｆを設け、支持軸部３ｃの六角嵌合部３ｆを取付体２の六角貫通孔２ｄに嵌合するようにしてもよい。その場合、六角嵌合部３ｆを支持軸部３ｃよりもやや大きく形成すると共に、六角貫通孔２ｄに対しても離脱不能に嵌合できるようやや大きく形成しておく。斯く構成すれば、六角嵌合部３ｆの六角貫通孔２ｄへの圧入による嵌め合いにより、単なる圧入固定のみに較べて回転方向に対しより強固に固定できる。なお、圧入固定とは冷間における無理嵌めや焼き嵌めは勿論、貫通孔と圧入部部分をスプライン、セレ−ション、多角断面形状或いは異形断面形状に形成して嵌合する場合のすべてを含む概念である。 Further, as a means for fixing the shaft body 3 and the mounting body 2, the through hole 2 d of the mounting body 2 is formed in a polygonal hole shape such as a hexagonal hole as shown in FIG. A fitting portion 3f having a polygonal hole shape such as a hexagonal hole having substantially the same size as the thickness of the through hole 2d portion of the mounting body 2 is provided in the press-fit base portion, and the hexagonal fitting portion 3f of the support shaft portion 3c is inserted into the hexagonal hole of the mounting body 2. You may make it fit in the hole 2d. In that case, the hexagonal fitting portion 3f is formed to be slightly larger than the support shaft portion 3c, and is also formed to be slightly larger so that it can be fitted to the hexagonal through hole 2d so as not to be detached. If comprised in this way, it can fix more firmly with respect to a rotation direction compared with only a mere press-fit fixation by the fitting by the press fit in the hexagon through-hole 2d of the hexagon fitting part 3f. Note that press-fit fixing includes not only forced fitting and shrink fitting in the cold, but also includes all cases where the through-hole and the press-fitted portion are fitted with splines, selections, polygonal cross sections or irregular cross sections. It is.

さらに、軸体３と取付体２との固定手段としては、上記したように熔接、圧入固定による他、軸体３と取付体２とをカシメにより固定するようにしてもよい。 Furthermore, as a fixing means for the shaft body 3 and the mounting body 2, as described above, the shaft body 3 and the mounting body 2 may be fixed by caulking in addition to welding and press-fitting fixing.

また、上記した実施の形態では、軸体３として、軸体３の両端部に小径軸部３ａ，３ｂを設けたものについて説明したけれども、何ら斯かる形状に限定されるものではなく、例えば図６に示すように、支持軸部３ｃに小径軸部３ａ，３ｂを有しない形状の軸体３であってもよい。 In the above-described embodiment, the shaft body 3 has been described in which the small-diameter shaft portions 3a and 3b are provided at both ends of the shaft body 3. However, the present invention is not limited to such a shape. As shown in FIG. 6, the shaft body 3 may have a shape that does not include the small-diameter shaft portions 3a and 3b in the support shaft portion 3c.

さらに、上記した実施の形態では、取付体２として、円弧状で両端部に通孔２ａ，２ｂを有し、かつ中央部に平面視において後方にコ字状に凹む中央凹部２ｃと該中央凹部２ｃの中心部に貫通孔２ｄが形成された板状のものについて説明したけれども、何ら斯かる形状に限定されるものではなく、例えば図７に示すように、コ字状に凹む中央凹部２ｃをもたないフラットで正面視長方形状やへの字形状など各種形状の取付体２であってもよい。 Further, in the above-described embodiment, the mounting body 2 has a central concave portion 2c that has an arc shape and has through holes 2a and 2b at both ends, and is recessed backward in a U shape in plan view in the central portion, and the central concave portion. Although the plate-like one in which the through-hole 2d is formed in the central portion of 2c has been described, the shape is not limited to such a shape. For example, as shown in FIG. The mounting body 2 may be a flat and flat shape with various shapes such as a rectangular shape when viewed from the front or a U-shape.

本考案に係るアンカーピンの平面図である。 It is a top view of an anchor pin concerning the present invention. 同アンカーピンの正面図である。 It is a front view of the anchor pin. 同アンカーピンの分解説明図である。 It is decomposition | disassembly explanatory drawing of the anchor pin. 別の固定手段に用いた軸体の平面図である。 It is a top view of the shaft used for another fixing means. さらに別の固定手段を用いたアンカーピンの分解説明図である。 It is an exploded explanatory view of an anchor pin using another fixing means. 別の軸体の平面図である。 It is a top view of another shaft body. 別の取付体の平面図である。 It is a top view of another attachment body. 従来の説明図である。 It is conventional explanatory drawing. 同背面図である。 It is the same rear view.

１アンカーピン
２取付体
２ａ通孔
２ｂ通孔
２ｃ中央凹部
２ｄ貫通孔
３軸体
３ａ小径軸部
３ｂ小径軸部
３ｃ支持軸部３ｃ
３ｄ鍔部
３ｅスプライン部
３ｆ六角嵌合部DESCRIPTION OF SYMBOLS 1 Anchor pin 2 Attachment body 2a Through-hole 2b Through-hole 2c Central recessed part 2d Through-hole 3 Shaft body 3a Small diameter shaft part 3b Small diameter shaft part 3c Support shaft part 3c
3d collar 3e spline 3f hexagonal fitting

Claims

両端部に通孔２ａ，２ｂを有し、かつ中央部に貫通孔２ｄが形成された板状の取付体２と、上記貫通孔２ｄに嵌入される支持軸部３ｃと鍔部３ｄとを備えた軸体３とからなり、軸体３の支持軸部３ｃが取付体２の貫通孔２ｄにその前面側から嵌入されて鍔部３ｄが取付体２の中央部２ｃに当接した状態で軸体３と取付体２とが固定されていることを特徴とするアンカーピン。 A plate-like mounting body 2 having through holes 2a and 2b at both ends and a through hole 2d formed at the center, and a support shaft portion 3c and a flange portion 3d fitted into the through hole 2d. The shaft 3 in the state in which the support shaft portion 3c of the shaft body 3 is fitted into the through hole 2d of the mounting body 2 from the front side and the flange portion 3d is in contact with the central portion 2c of the mounting body 2. An anchor pin, wherein the body 3 and the mounting body 2 are fixed.

両端部に通孔２ａ，２ｂを有し、かつ中央部に平面視において後方にコ字状に凹む中央凹部２ｃと該中央凹部２ｃの中心部に貫通孔２ｄが形成された板状の取付体２と、上記貫通孔２ｄに嵌入される支持軸部３ｃと外径が中央凹部２ｃの底幅よりも小径で厚みが中央凹部２ｃの深さとほぼ同一の鍔部３ｄとを備えた軸体３とからなり、軸体３の支持軸部３ｃが取付体２の貫通孔２ｄにその前面側から嵌入されて鍔部３ｄが中央凹部２ｃに当接した状態で軸体３と取付体２とが熔接又は圧入固定又はカシメ止めされていることを特徴とするアンカーピン。 A plate-like mounting body having through-holes 2a and 2b at both ends and a central recess 2c recessed rearward in a U shape in plan view in the center and a through-hole 2d formed in the center of the center recess 2c 2 and a shaft 3 having a support shaft 3c fitted into the through hole 2d and a flange 3d having an outer diameter smaller than the bottom width of the central recess 2c and a thickness substantially the same as the depth of the central recess 2c. The shaft body 3 and the mounting body 2 are in a state in which the support shaft portion 3c of the shaft body 3 is fitted into the through hole 2d of the mounting body 2 from the front side and the flange portion 3d is in contact with the central recess 2c. An anchor pin characterized by being welded, press-fitted, or crimped.

軸体３の取付体２への圧入固定に際して、軸体３の支持軸部３ｃの圧入基部に取付体２の貫通孔２ｄ部分の厚みとほぼ同寸法のスプライン部３ｅが設けられ、このスプライン部３ｅが上記貫通孔２ｄにスプライン嵌合されることを特徴とする請求項１又は２記載のアンカーピン。 When the shaft body 3 is press-fitted and fixed to the mounting body 2, a spline portion 3 e having substantially the same size as the thickness of the through hole 2 d portion of the mounting body 2 is provided at the press-fit base portion of the support shaft portion 3 c of the shaft body 3. The anchor pin according to claim 1 or 2, wherein 3e is spline-fitted into the through hole 2d.

軸体３の取付体２への圧入固定に際して、取付体２の貫通孔２ｄが多角孔形状に形成されている一方、軸体３の支持軸部３ｃおける圧入基部に取付体２の貫通孔２ｄ部分の厚みとほぼ同寸法の多角形状の嵌合部３ｆが設けられ、この多角嵌合部３ｆが上記多角貫通孔２ｄに圧入嵌合されることを特徴とする請求項１又は２記載のアンカーピン。 When the shaft body 3 is press-fitted and fixed to the mounting body 2, the through-hole 2d of the mounting body 2 is formed in a polygonal hole shape, while the through-hole 2d of the mounting body 2 is formed in the press-fit base portion of the support shaft portion 3c of the shaft body 3. The anchor according to claim 1 or 2, wherein a polygonal fitting portion 3f having substantially the same size as the thickness of the portion is provided, and the polygonal fitting portion 3f is press-fitted into the polygonal through hole 2d. pin.