JP2006258164A - Fastening tool and antenna - Google Patents

Fastening tool and antenna Download PDF

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Publication number
JP2006258164A
JP2006258164A JP2005074916A JP2005074916A JP2006258164A JP 2006258164 A JP2006258164 A JP 2006258164A JP 2005074916 A JP2005074916 A JP 2005074916A JP 2005074916 A JP2005074916 A JP 2005074916A JP 2006258164 A JP2006258164 A JP 2006258164A
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Japan
Prior art keywords
fastening
fastener
fastened
end surface
antenna
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Japanese (ja)
Inventor
Junsuke Miyabayashi
隼介 宮林
Masahiko Ota
雅彦 太田
Hisayoshi Mizugaki
久良 水柿
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Showa Denko Materials Co Ltd
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Hitachi Chemical Co Ltd
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Priority to JP2005074916A priority Critical patent/JP2006258164A/en
Publication of JP2006258164A publication Critical patent/JP2006258164A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fastening tool which suppresses the generation of burr and dregs which is a drawback of a solid rivet, a blind rivet or the like conventionally employed for fastening a plurality of members, and an antenna fastend with it. <P>SOLUTION: A fastening tool is inserted into a hole which a fastened material penetrates, and then deformed to enlarge a diameter, thereby performing fastening. After fastening, no acute projected rising part is produced on the bottom end surface of the barrel part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、締結具、及びそれにより締結されたアンテナに関する。   The present invention relates to a fastener and an antenna fastened thereby.

従来、締結具は、被締結部材全てに貫通する穴を設け、この穴の一方の開口側から穴内に挿入した後、打撃、押圧等の力を加えて変形させ拡径させることによって締結を行う。このように穴の一方から挿入されて部材を締結する締結具としては、例えばソリッドリベットがある。このソリッドリベットは、一部品から構成された単純な構成であり、使用時にはこのリベットを被締結部材の穴に挿入してから、リベット軸下端面へ力を加えることで下端部を拡径させる。この結果、上端部と拡径した下端部との間で被締結部材を締結する。しかし、ソリッドリベットは締結プロセスにおいて、周辺にバリやカスが多数発生する。また、ソリッドリベット以外のブラインドリベットや中空リベット等の締結具においても、同様にバリやカスが発生する。これらバリやカスは様々な不具合を起こすことから問題となっており、問題改善のために種々な締結具が提案されている（例えば、特開平１１−１７９４５１号公報参照）が、十分な解決には至っていない。
特開平１１−１７９４５１号公報 Conventionally, a fastener is provided with a hole penetrating all the members to be fastened, and after being inserted into the hole from one opening side of this hole, a force such as striking or pressing is applied to deform and expand the diameter. . As such a fastener that is inserted from one of the holes and fastens the member, for example, there is a solid rivet. This solid rivet is a simple structure composed of one part, and when used, the rivet is inserted into the hole of the member to be fastened, and then the lower end portion is expanded by applying a force to the lower end surface of the rivet shaft. As a result, the to-be-fastened member is fastened between the upper end portion and the expanded lower end portion. However, a solid rivet generates many burrs and debris in the periphery during the fastening process. In addition, burrs and debris are similarly generated in fasteners such as blind rivets and hollow rivets other than solid rivets. These burrs and debris are problematic because they cause various problems, and various fasteners have been proposed to improve the problem (for example, see JP-A-11-179451). Has not reached.
JP 11-179451 A

本発明は上記に鑑みてなされたものであり、複数の部材を締結するために従来用いられているソリッドリベットやブラインドリベット等の欠点である、バリやカスの発生を抑制する締結具、及びそれにより締結されたアンテナを提供することを目的としている。   The present invention has been made in view of the above, and a fastener that suppresses the generation of burrs and debris, which are disadvantages of solid rivets and blind rivets that are conventionally used for fastening a plurality of members, and the like. It aims at providing the antenna fastened by.

上記目的を達成するため、鋭意検討の結果、従来の締結具では、締結後リベットの下端面に鋭角の凸隆起が形成され、この鋭角凸隆起がバリやカスの発生の原因となっていることを究明し、締結後に胴部下端面に鋭角凸隆起を有さない締結具により上記問題点が解決できることを見出し、本願発明に至った。   In order to achieve the above-mentioned purpose, as a result of intensive studies, in conventional fasteners, an acute convex protrusion is formed on the lower end surface of the rivet after fastening, and this acute convex protrusion causes burrs and debris. As a result, the present inventors have found that the above-mentioned problems can be solved by a fastener that does not have an acute convex protrusion on the lower end surface of the body after fastening.

すなわち、本発明は以下の通りである。
（１）被締結材の貫通する穴に挿入され、その後変形させ拡径させることによって締結を行う締結具において、締結後に胴部下端面に鋭角凸隆起を有さない締結具。
（２）締結後に胴部下端面の中央に凹部が形成される項（１）記載の締結具。
（３）締結前の形状がソリッドリベット形状である項（１）または（２）に記載の締結具。
（４）項（１）〜（３）のいずれかに記載の締結具により締結されたアンテナ。 That is, the present invention is as follows.
(1) A fastener that is inserted into a through-hole of a material to be fastened and then fastened by being deformed and expanded in diameter, and does not have an acute convex protrusion on the lower end surface of the body after fastening.
(2) The fastener according to item (1), wherein a concave portion is formed at the center of the lower end surface of the body portion after fastening.
(3) The fastener according to item (1) or (2), wherein the shape before fastening is a solid rivet shape.
(4) An antenna fastened by the fastener according to any one of items (1) to (3).

本発明による締結具は、締結後にバリやカスの発生を抑制することができるため、締結後のバリ等を除去する作業が不要となり、締結された被締結具の前記バリ等に由来する不具合を抑制することができる。また、ネジ等で締結していた従来品に、本発明の締結具を導入することで締結時間の短縮化を図ることができコストダウンにつながる。また、本発明による締結具は、締結後にバリやカスの発生を抑制することができるため、締結後のバリ等を削り取る作業が不要となり、これにより締結されたアンテナは導通不良等を低減することができ、特性向上が図れる。   Since the fastener according to the present invention can suppress the generation of burrs and debris after fastening, there is no need to remove the burrs after fastening, and there is a problem caused by the burrs etc. of the fastened fasteners to be fastened. Can be suppressed. In addition, the fastening time of the present invention can be shortened by introducing the fastener of the present invention into a conventional product that has been fastened with screws or the like, leading to cost reduction. In addition, since the fastener according to the present invention can suppress the generation of burrs and debris after fastening, it is not necessary to scrape off the burrs after fastening, thereby reducing the conduction failure and the like of the fastened antenna. Can improve the characteristics.

以下、本発明の実施形態について図面を用いて詳細に説明するが、本発明はこれらに限定されるものではない。
本発明の締結具は、被締結材の貫通する穴に挿入され、その後変形させ拡径させることによって締結を行う締結具において、締結後に胴部下端面に鋭角凸隆起を有さないことを特徴としている。図１は、皿部２と円筒状の胴部３とから成り、該胴部３の下端面Ａの中心には軸方向内側へ向けた小凹部４（図２参照）が形成されたソリッドリベット形状の締結具を用いた場合の、被締結材６、７を締結後の締結具１を示す図である。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, but the present invention is not limited thereto.
The fastener according to the present invention is a fastener that is inserted into a through-hole of a material to be fastened, and is then tightened by being deformed and expanded in diameter. Yes. FIG. 1 shows a solid rivet comprising a dish part 2 and a cylindrical body part 3 and having a small recess 4 (see FIG. 2) directed inward in the axial direction at the center of the lower end surface A of the body part 3. It is a figure which shows the fastener 1 after fastening the to-be-fastened materials 6 and 7 at the time of using a shape fastener.

本発明の締結具として、締結後に胴部下端面に鋭角凸隆起を有さないものであれば、締結後の胴部下端面Ａにおける形状は特に限定はないが、略円錐状、平坦面、円形、中心に小円錐を有する異形の形状等が挙げられ、たとえば、図１の３（ａ）、（ｂ）、（ｃ）及び（ｄ）に示す形状が挙げられる。これらの形状は、たとえば、締結具の胴部下端面を圧迫する工具等の形状により、調整することが可能である。   As long as the fastener of the present invention does not have an acute convex ridge on the lower end surface of the body after fastening, the shape of the lower end surface A of the body after fastening is not particularly limited, but is substantially conical, flat, circular, Examples include irregular shapes having a small cone at the center, such as the shapes shown in 3 (a), (b), (c) and (d) of FIG. These shapes can be adjusted by, for example, the shape of a tool or the like that presses the lower end surface of the body portion of the fastener.

また、本発明の締結具は、胴部の形状についても特に限定はなく、図１に示す円筒状に限らず、多角柱、異形の筒体の胴部、或いは円錐、多角錘、異形錘状の胴部を有する締結具であってもよい。   Further, the fastener of the present invention is not particularly limited with respect to the shape of the body portion, and is not limited to the cylindrical shape shown in FIG. 1, but is a polygonal column, a body portion of a deformed cylindrical body, or a cone, a polygonal pyramid, a deformed weight shape. It may be a fastener having a body portion.

図１ではソリッドリベット形状の締結具を用いた一例を示したが、締結具の形状は特に限定はないが、本願発明の構成を形成しやすい観点からは、ソリッドリベット形状及び中空リベット形状が好ましく、ソリッドリベット形状がより好ましい。   FIG. 1 shows an example using a solid rivet-shaped fastener, but the shape of the fastener is not particularly limited. However, from the viewpoint of easily forming the configuration of the present invention, a solid rivet shape and a hollow rivet shape are preferable. A solid rivet shape is more preferable.

本発明の締結具により締結される被締結部材は特に限定はなく、また、締結される部材数も限定はなく、１個（１枚）でも２個（２枚）でもそれ以上であってもよい。   The member to be fastened by the fastener of the present invention is not particularly limited, and the number of members to be fastened is not limited, and may be one (one), two (two), or more. Good.

本発明の締結具はアンテナ用締結具であることが好ましく、これにより締結されたアンテナとしては特に限定はないが、車載用等のレーダー用アンテナであることが好ましい。これらのアンテナは、位置決めして重ねた状態の複数のアンテナ部品に設けた下穴内に、本発明の上記リベットを挿通して締結したものであることが好ましい。   The fastener of the present invention is preferably an antenna fastener, and the antenna fastened thereby is not particularly limited, but is preferably an on-vehicle radar antenna. It is preferable that these antennas are fastened by inserting the rivets of the present invention into pilot holes provided in a plurality of antenna parts positioned and stacked.

（実施例１）
図２は、本発明の一実施形態の締結具の締結前（ａ）、及び締結後（ｂ）の構成を示す断面図である。この締結具１は、皿部２と円筒状の胴部３とから成り、該胴部３の下端面Ａの中心には軸方向内側へ向けた小凹部４が形成されたソリッドリベット形状である。該小凹部４は、例えば中心５を頂部とする略円錐状の形状となる様に設定する。また、中心５における頂角θは６０°〜１８０°の範囲であることが望ましい。この締結具１は、金属材料からなる一体加工品であり、被締結部材６、７をこの締結具１により締結する場合には、図２（ａ）に示す様に各部材６、７に夫々貫通形成した穴６ａ，７ａを連通させた状態で、該穴内に矢印で示す挿着方向から締結具１を挿着する。 Example 1
FIG. 2 is a cross-sectional view illustrating the configuration of the fastener according to an embodiment of the present invention before (a) and after (b). The fastener 1 is composed of a dish portion 2 and a cylindrical barrel portion 3, and has a solid rivet shape in which a small concave portion 4 is formed at the center of the lower end surface A of the barrel portion 3 toward the inside in the axial direction. . The small concave portion 4 is set to have a substantially conical shape with the center 5 as a top portion, for example. Further, the apex angle θ at the center 5 is preferably in the range of 60 ° to 180 °. The fastener 1 is an integrally processed product made of a metal material. When the fastened members 6 and 7 are fastened by the fastener 1, as shown in FIG. With the through holes 6a and 7a communicating, the fastener 1 is inserted into the hole from the insertion direction indicated by the arrow.

続いて、図２（ｂ）に示すように下端面Ａへ矢印で示す作業方向から工具８により打撃、或は押圧力を加えることにより、胴部３を拡径して穴７ａの他端側開口縁部に係止し、皿部２と拡径した外周縁部９との間で被締結部材６、７を締結保持する。締結に関しては、挿着しながら打撃、或は押圧力を加えることで締結保持を行う場合もある。また、図１（ｂ）のように締結後の下端面Ａ’には、工具８径大の凹部１０が形成され、この凹部１０の形状は工具８の上端面１１に即して、例えば中心１２を頂部とする略円錐状の形状となる。このように下端面Ａ’に鋭角の凸隆起が形成されないため、バリやカスの発生を抑制できる。実際にＮ＝１００でバリやカスの発生率を調べた所、発生率が０という結果が得られた。   Subsequently, as shown in FIG. 2 (b), the barrel 3 is expanded in diameter by striking or applying a pressing force to the lower end surface A from the working direction indicated by an arrow to the other end side of the hole 7a. The members to be fastened 6 and 7 are fastened and held between the plate edge 2 and the outer peripheral edge portion 9 whose diameter has been enlarged. As for fastening, there is a case where fastening or holding is performed by hitting or applying a pressing force while being inserted. Further, as shown in FIG. 1B, a concave portion 10 having a large diameter of the tool 8 is formed on the lower end surface A ′ after fastening, and the shape of the concave portion 10 conforms to the upper end surface 11 of the tool 8, for example, at the center. It becomes a substantially conical shape with 12 as the top. As described above, since the convex protrusion having an acute angle is not formed on the lower end surface A ′, the generation of burrs and debris can be suppressed. When the occurrence rate of burrs and debris was actually examined at N = 100, a result of 0 was obtained.

（比較例１）
該胴部３の下端面Ａ’の中心に軸方向内側へ向けた小凹部４が形成されていない締結具１を用いた以外は実施例１と同様に行なった。図３は従来締結具の締結後の構成の一形態例を示す断面図である。図３に示すように、皿部２と拡径した外周縁部９との間で被締結部材６、７を締結保持する点は前記本発明の締結具と同一であるが、従来の締結具では、締結後の下端面Ａ’に鋭角の凸隆起１３が形成され、この凸隆起１３自身及び周辺にバリやカスが多数発生する。実際の発生率は７５％（Ｎ＝１００）であった。 (Comparative Example 1)
The same procedure as in Example 1 was performed except that the fastener 1 in which the small concave portion 4 directed inward in the axial direction was not formed at the center of the lower end surface A ′ of the trunk portion 3 was used. FIG. 3 is a cross-sectional view showing an example of a configuration after fastening of a conventional fastener. As shown in FIG. 3, the fastening members 6 and 7 are fastened and held between the plate portion 2 and the outer peripheral edge portion 9 whose diameter has been enlarged. Then, an acute-angle convex ridge 13 is formed on the lower end surface A ′ after fastening, and a large number of burrs and debris are generated on the convex ridge 13 itself and the periphery. The actual incidence was 75% (N = 100).

以上、本発明の締結具では、締結後にバリやカスがまったく発生せず、締結後のバリ等を削り取る作業が不要となり、これにより締結されたアンテナは導通不良等を低減することができ、特性向上が図れた。   As described above, in the fastener of the present invention, no burrs or debris are generated after fastening, and it is not necessary to scrape off the burrs after fastening, so that the fastened antenna can reduce poor conduction and the like. Improvements were made.

本発明の締結具の一実施形態を示す断面図である。It is sectional drawing which shows one Embodiment of the fastener of this invention. 本発明の締結具の一実施例の締結前（ａ）と締結後（ｂ）を示す断面図である。It is sectional drawing which shows before fastening (a) and after fastening (b) of one Example of the fastener of this invention. 従来の締結具の締結後の状態を示す断面図である。It is sectional drawing which shows the state after the fastening of the conventional fastener.

符号の説明Explanation of symbols

１・・・・・締結具
２・・・・・皿部
３・・・・・胴部
４・・・・・小凹部
５・・・・・中心
６、７・・・被締結部材
８・・・・・工具
９・・・・・外周縁部
１０・・・・凹部
１１・・・・工具の上端面
１２・・・・中心
１３・・・・凸隆起
６ａ，７ａ・穴
Ａ・・・・・下端面
Ａ’・・・・ 下端面
θ・・・・・頂角


DESCRIPTION OF SYMBOLS 1 ... Fastener 2 ... Dish part 3 ... Body part 4 ... Small recessed part 5 ... Center 6, 7 ... Fastened member 8 ··· Tool 9 · · · Outer peripheral edge portion ··································································· ... Lower end face A '... Lower end face θ ... Vertical angle


Claims (4)

被締結材の貫通する穴に挿入され、その後変形させ拡径させることによって締結を行う締結具において、締結後に胴部下端面に鋭角凸隆起を有さない締結具。   A fastener that is inserted into a through-hole of a material to be fastened, and then fastened by being deformed and expanded in diameter, and does not have an acute convex bulge on the lower end surface of the body after fastening. 締結後に胴部下端面の中央に凹部が形成される請求項１記載の締結具。   The fastener according to claim 1, wherein a recess is formed in the center of the lower end surface of the body part after fastening. 締結前の形状がソリッドリベット形状である請求項１または２に記載の締結具。   The fastener according to claim 1 or 2, wherein the shape before fastening is a solid rivet shape. 請求項１〜３のいずれかに記載の締結具により締結されたアンテナ。


An antenna fastened by the fastener according to any one of claims 1 to 3.


JP2005074916A 2005-03-16 2005-03-16 Fastening tool and antenna Pending JP2006258164A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012228942A (en) * 2011-04-26 2012-11-22 Bridgestone Corp Rubber crawler manufacturing method and rubber crawler
CN103398064A (en) * 2013-08-15 2013-11-20 福立旺精密机电(中国)有限公司 Rivet used on through holes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5113467U (en) * 1974-07-17 1976-01-31
JPH11243309A (en) * 1997-12-22 1999-09-07 Toyoda Gosei Co Ltd Roof antenna for vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5113467U (en) * 1974-07-17 1976-01-31
JPH11243309A (en) * 1997-12-22 1999-09-07 Toyoda Gosei Co Ltd Roof antenna for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012228942A (en) * 2011-04-26 2012-11-22 Bridgestone Corp Rubber crawler manufacturing method and rubber crawler
CN103398064A (en) * 2013-08-15 2013-11-20 福立旺精密机电(中国)有限公司 Rivet used on through holes

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