JPH03112148U - - Google Patents
Info
- Publication number
- JPH03112148U JPH03112148U JP2087590U JP2087590U JPH03112148U JP H03112148 U JPH03112148 U JP H03112148U JP 2087590 U JP2087590 U JP 2087590U JP 2087590 U JP2087590 U JP 2087590U JP H03112148 U JPH03112148 U JP H03112148U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- annular groove
- cylindrical portion
- cylindrical
- bottom side
- 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.)
- Pending
Links
- 239000000428 dust Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Description
第１図は本考案が適用されたピストンを備えた
デイスクブレーキの要部を示す図であつて、断面
にして示す図である。第２図ａ乃至ｃは第１図に
おけるピストンの製造方法を説明するための図で
ある。
１０……キヤリパ、１６……シリンダボア、２
２……ピストン、２６……環状溝、２８……ダス
トブーツ、５２……円筒部、５４……底部、６１
……環状段付部、６４……小径厚肉部、６８……
側壁。
FIG. 1 is a cross-sectional view showing the main parts of a disc brake equipped with a piston to which the present invention is applied. FIGS. 2a to 2c are diagrams for explaining a method of manufacturing the piston shown in FIG. 1. 10... Caliper, 16... Cylinder bore, 2
2... Piston, 26... Annular groove, 28... Dust boot, 52... Cylindrical portion, 54... Bottom, 61
...Annular stepped part, 64...Small diameter thick part, 68...
side wall.
Claims (1)
を有する有底円筒状に成形され、デイスクブレー
キ用キヤリパのシリンダボアに該円筒部の開口側
端部が該シリンダボア外へ突き出した状態で摺動
可能に嵌合されるとともに、該円筒部の開口側端
部の外周面にダストブーツを嵌め着けるための環
状溝が形成されるピストンにおいて、 前記円筒部の開口側端部を、内周側へ絞つた後
前記底部側へ圧縮して該円筒部の該開口側端部よ
り該底部側に位置する部分よりも小径かつ厚肉の
小径厚肉部とし、該小径厚肉部の外周面に前記環
状溝を形成するとともに、該環状溝の前記底部側
に位置する一方の側壁を、該小径厚肉部の基端に
形成された環状段付部に設けたことを特徴とする
デイスクブレーキ用キヤリパのピストン。[Claim for Utility Model Registration] A relatively thin sheet metal material is formed into a bottomed cylindrical shape having a cylindrical portion and a bottom portion, and the open end of the cylindrical portion is formed into a cylinder bore of a caliper for a disc brake. A piston that is slidably fitted in an outwardly protruding state and has an annular groove formed on the outer circumferential surface of the opening side end of the cylindrical part for fitting a dust boot, the piston comprising the following: The end portion is narrowed toward the inner circumference and then compressed toward the bottom side to form a small-diameter thick portion having a smaller diameter and thicker wall than a portion of the cylindrical portion located closer to the bottom side than the opening-side end portion of the cylindrical portion; The annular groove is formed on the outer circumferential surface of the thick wall part, and one side wall of the annular groove located on the bottom side is provided in the annular stepped part formed at the base end of the small diameter thick wall part. A caliper piston for disc brakes featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2087590U JPH03112148U (en) | 1990-03-01 | 1990-03-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2087590U JPH03112148U (en) | 1990-03-01 | 1990-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03112148U true JPH03112148U (en) | 1991-11-15 |
Family
ID=31523958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2087590U Pending JPH03112148U (en) | 1990-03-01 | 1990-03-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03112148U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5146670A (en) * | 1974-10-21 | 1976-04-21 | Akebono Brake Ind | DEISUKUBUREEKYOEKIATSUSADOSOCHINO KINTONIKUATSUOJUSURUCHUKUPISUTONNO SEIZOHOHO |
| JPS5395158A (en) * | 1977-02-01 | 1978-08-19 | Toyota Motor Corp | Rotary swaging method for hollow piston for brake |
-
1990
- 1990-03-01 JP JP2087590U patent/JPH03112148U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5146670A (en) * | 1974-10-21 | 1976-04-21 | Akebono Brake Ind | DEISUKUBUREEKYOEKIATSUSADOSOCHINO KINTONIKUATSUOJUSURUCHUKUPISUTONNO SEIZOHOHO |
| JPS5395158A (en) * | 1977-02-01 | 1978-08-19 | Toyota Motor Corp | Rotary swaging method for hollow piston for brake |