JPH081290Y2 - Pivot bolt - Google Patents
Pivot boltInfo
- Publication number
- JPH081290Y2 JPH081290Y2 JP1992091790U JP9179092U JPH081290Y2 JP H081290 Y2 JPH081290 Y2 JP H081290Y2 JP 1992091790 U JP1992091790 U JP 1992091790U JP 9179092 U JP9179092 U JP 9179092U JP H081290 Y2 JPH081290 Y2 JP H081290Y2
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- nut
- diameter
- lower neck
- press
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0604—Construction of the male part
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Pivots And Pivotal Connections (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、車両用クラッチレリー
ズレバ−等に用いるピボットボルトに関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pivot bolt used for a vehicle clutch release lever or the like.
【０００２】[0002]
【従来の技術】図３に、車両用クラッチレリーズレバー
等に用いられるピボットボルトＡを示す。このピボット
ボルトＡは、半球状の頭部ａの平面側に、首下部ｂと、
ナット部ｃと、ねじ部ｄとを、順に軸方向に形成したも
のである。2. Description of the Related Art FIG. 3 shows a pivot bolt A used for a vehicle clutch release lever or the like. This pivot bolt A has a lower neck portion b on the plane side of a hemispherical head portion a,
The nut portion c and the screw portion d are sequentially formed in the axial direction.
【０００３】[0003]
【考案が解決しようとする課題】従来、ピボットボルト
Ａを製造する場合は、ナット部ｃと等しい断面を有する
角材から、切削加工により切り出して製造していた。そ
のため、切削加工に手間が掛かり、また切削専用機が必
要となること等から、生産性の低下及びコスト高を招い
ていた。Conventionally, when the pivot bolt A is manufactured, it is manufactured by cutting a square bar having a cross section equal to that of the nut portion c by cutting. For this reason, it takes time and labor for cutting, and a dedicated machine for cutting is required, resulting in lower productivity and higher cost.
【０００４】[0004]
【課題を解決するための手段】本考案は、上記のような
問題点を解決するためになされたもので、生産性の向上
及びコストの低減を図ることができるピボットボルトを
提供することを目的とする。即ち、本考案は、半球状の
頭部の平面側に、首下部と、表面にほぼ軸方向のセレー
ションを設けたテーパー部と、前記首下部より小径のね
じ部とを、順に軸方向に形成したボルト部と、前記首下
部の径よりも小径でかつ前記ねじ部の径よりも大径の孔
を軸心部に開設したナット部とよりなり、前記ナット部
の孔内に前記ボルト部のテ−パ−部を圧入して、ボルト
部とナット部を一体に組み付けて構成した、ピボットボ
ルトである。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a pivot bolt capable of improving productivity and reducing cost. And That is, according to the present invention, a lower neck portion, a tapered portion provided with serrations in a substantially axial direction on the surface, and a screw portion having a diameter smaller than the lower neck portion are sequentially formed in the axial direction on the plane side of a hemispherical head. Bolt portion and a nut portion having a hole smaller in diameter than the lower neck portion and larger in diameter than the screw portion in the shaft center portion, and the bolt portion in the hole of the nut portion. The pivot bolt is configured by press-fitting the taper portion and integrally assembling the bolt portion and the nut portion.
【０００５】[0005]
【実施例】以下、図面を参照しながら、本考案の一実施
例について説明する。 ＜イ＞ボルト部 ボルト部１は、図１に示すように、半球状の頭部１１の
平面側に、首下部１２と、表面にほぼ軸方向のセレーシ
ョン１５を設けたテーパー部１３と、前記首下部より小
径のねじ部１４とを、順に軸方向に形成したものであ
る。ボルト部１の製造方法は、先ず、頭部１１を形成し
たボルト素材を用いて、冷間押し出し加工等によりボル
ト部１の原形を形成する。即ち、ボルト素材をコンテナ
内に圧入して、ねじ切り前のねじ部１４と、セレーショ
ン１５の刻設前のテーパ−部１３と、首下部１２とを成
型する。次に、ねじ切り溝とセレーション刻設溝を有す
るダイスを用いて、ねじ部１４とセレーション１５とを
同時に転造するか、あるいは個々のダイスを用いて別工
程で転造する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. <a> Bolt portion As shown in FIG. 1, the bolt portion 1 includes a lower neck portion 12 on a plane side of a hemispherical head portion 11, and a taper portion 13 provided with serrations 15 substantially in the axial direction on the surface thereof. The threaded portion 14 having a diameter smaller than that of the lower part of the neck is sequentially formed in the axial direction. In the method of manufacturing the bolt portion 1, first, the bolt material having the head portion 11 is used to form the original shape of the bolt portion 1 by cold extrusion or the like. That is, the bolt material is press-fitted into the container to mold the threaded portion 14 before thread cutting, the taper portion 13 before engraving the serrations 15, and the lower neck portion 12. Next, the threaded portion 14 and the serration 15 are rolled at the same time using a die having a thread cutting groove and a serration engraving groove, or they are rolled in separate steps using individual dies.
【０００６】＜ロ＞ナット部 ナット部２は、冷間押し出し加工等により、外周面に６
角等の角面２１を形成した板体であり、その軸心部には
圧入孔２２を開設する。この圧入孔２２は、ボルト部１
の首下部１２の径よりも小さく、かつねじ部１４の径よ
りも大きい径の範囲で形成し、圧入孔２２内にテ−パ−
部１３を圧入し、かつ一体に係止できるよう構成する。
なお、圧入孔２２の径は、テ−パ−部１３の傾斜角に対
応させて適宜選択する。 <B> Nut part The nut part 2 is formed on the outer peripheral surface by a cold extrusion process or the like.
It is a plate body having a corner surface 21 such as a corner, and a press-fitting hole 22 is formed in the axial center portion thereof. The press-fitting hole 22 is formed in the bolt portion 1
The taper is formed in the press-fitting hole 22 with a diameter smaller than the diameter of the lower neck portion 12 and larger than the diameter of the screw portion 14.
The portion 13 is configured to be press-fitted and can be locked integrally.
The diameter of the press-fitting hole 22 is appropriately selected according to the inclination angle of the taper portion 13.
【０００７】＜ハ＞ボルト部とナット部の組み付け 上記のように構成したナット部２の圧入孔２２内に、ボ
ルト部１のテ−パ−部１３を圧入する。これにより、セ
レ−ション１５が圧入孔２２の内面に食い込むため、ボ
ルト部１とナット部２を一体に組み付けることができ、
ピボットボルトを製造できる。<C> Assembling of bolt part and nut part The taper part 13 of the bolt part 1 is press-fitted into the press-fitting hole 22 of the nut part 2 configured as described above. As a result, the selection 15 bites into the inner surface of the press-fitting hole 22, so that the bolt portion 1 and the nut portion 2 can be assembled together,
Can manufacture pivot bolts.
【０００８】[0008]
【作用】図２に示すように、ピボットボルトの寸法管理
において重要な項目は、その機能上から、頭部１１の先
端からナット部２の端面までの寸法Ｌの精度である。従
来の切削加工による場合は、この寸法Ｌの精度を確保し
つつ切削することが困難であるとともに、一度切削した
後は、寸法Ｌの変更はできないという欠点がある。それ
に対して本考案のボルトは、ナット部２のテ−パ−部１
３上での取り付け位置を変更し、上記寸法Ｌの微調整を
行うことができる。従って、寸法Ｌの高精度な管理が可
能となる。As shown in FIG. 2, an important item in the dimension control of the pivot bolt is the accuracy of the dimension L from the tip of the head portion 11 to the end face of the nut portion 2 in terms of its function. In the case of the conventional cutting process, it is difficult to perform the cutting while ensuring the accuracy of the dimension L, and the dimension L cannot be changed after cutting once. On the other hand, the bolt of the present invention has the taper portion 1 of the nut portion 2
The mounting position on 3 can be changed and the above-mentioned dimension L can be finely adjusted. Therefore, it is possible to manage the dimension L with high accuracy.
【０００９】[0009]
【本考案の効果】本考案は以上説明したようになるた
め、次のような効果を得ることができる。 ＜イ＞ボルト部とナット部とを別途に作製し、それらを
一体に組み付けることによって、従来のような煩雑な切
削作業が不要となり、冷間押し出し加工等で容易にピボ
ットボルトを製造できる。また、高価な専用切削機が不
要であり、通常のコンテナ及びダイスにより製造が行え
る。従って、生産性の向上及び生産コストの低減を図る
ことができる。[Effects of the Invention] Since the invention is as described above, the following effects can be obtained. <A> By separately manufacturing the bolt portion and the nut portion and assembling them together, the complicated cutting work as in the past is not required, and the pivot bolt can be easily manufactured by cold extrusion or the like. In addition, an expensive dedicated cutting machine is not required, and the production can be performed using ordinary containers and dies. Therefore, it is possible to improve the productivity and reduce the production cost.
【００１０】＜ロ＞ナット部のテ−パ−部上での取り付
け位置を変更し、ボルト頭部先端からナット部端面まで
の寸法の微調整を行うことができる。従って、上記寸法
の高精度な管理が可能となる。また、上記寸法が異なる
部品も、同一部品でナット部の固定位置またはナット部
の厚さを変更するだけで容易に製造することができる。<B> The mounting position of the nut portion on the taper portion can be changed to finely adjust the dimension from the tip of the bolt head to the end surface of the nut portion. Therefore, it is possible to manage the above dimensions with high accuracy. Also, parts having different dimensions can be easily manufactured by changing the fixing position of the nut part or the thickness of the nut part in the same part.
【図１】 ボルト部及びナット部の構造の説明図FIG. 1 is an explanatory view of a structure of a bolt portion and a nut portion.
【図２】 ボルト部とナット部の組み付け状態の説明図FIG. 2 is an explanatory view of an assembled state of a bolt portion and a nut portion.
【図３】 従来技術の説明図FIG. 3 is an explanatory diagram of a conventional technique.
Claims (1)
面にほぼ軸方向のセレーションを設けたテーパー部と、
前記首下部より小径のねじ部とを、順に軸方向に形成し
たボルト部と、 前記首下部の径よりも小径でかつ前記ねじ部の径よりも
大径の孔を軸心部に開設したナット部とよりなり、 前記ナット部の孔内に前記ボルト部のテ−パ−部を圧入
して、ボルト部とナット部を一体に組み付けて構成し
た、 ピボットボルト。1. A hemispherical head portion on a flat surface side, a lower neck portion, and a taper portion provided with serrations in a substantially axial direction on a surface thereof.
A bolt portion in which a threaded portion having a diameter smaller than that of the lower neck portion is sequentially formed in the axial direction, and a nut having a hole having a diameter smaller than the diameter of the lower neck portion and larger than the diameter of the threaded portion is formed in the shaft center portion. And a taper portion of the bolt portion is press-fitted into the hole of the nut portion to integrally assemble the bolt portion and the nut portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992091790U JPH081290Y2 (en) | 1992-12-21 | 1992-12-21 | Pivot bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992091790U JPH081290Y2 (en) | 1992-12-21 | 1992-12-21 | Pivot bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0651526U JPH0651526U (en) | 1994-07-15 |
| JPH081290Y2 true JPH081290Y2 (en) | 1996-01-17 |
Family
ID=14036407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992091790U Expired - Lifetime JPH081290Y2 (en) | 1992-12-21 | 1992-12-21 | Pivot bolt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH081290Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5911180B2 (en) * | 2013-09-02 | 2016-04-27 | 本田技研工業株式会社 | Fastening structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5279794A (en) * | 1975-12-26 | 1977-07-05 | Seiko Instr & Electronics Ltd | Piezo-vibrator unit |
-
1992
- 1992-12-21 JP JP1992091790U patent/JPH081290Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0651526U (en) | 1994-07-15 |
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