JPH0173073U - - Google Patents
Info
- Publication number
- JPH0173073U JPH0173073U JP1988057885U JP5788588U JPH0173073U JP H0173073 U JPH0173073 U JP H0173073U JP 1988057885 U JP1988057885 U JP 1988057885U JP 5788588 U JP5788588 U JP 5788588U JP H0173073 U JPH0173073 U JP H0173073U
- Authority
- JP
- Japan
- Prior art keywords
- power piston
- diaphragm
- shell
- folded
- outer peripheral
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Braking Systems And Boosters (AREA)
Description
第１図はブレーキ倍力装置の一例を示す縦断面
図、第２図はダイヤフラムの折り返し部の捲れ込
み変形を示す説明図、第３図は本考案に係るブレ
ーキ倍力装置の第１の実施例を示す要部断面図、
第４図は本考案の第２の実施例のダイヤフラムの
みを拡大して示す要部断面図である。
１……シエル、４……パワーピストン、７……
ダイヤフラム、７ａ……内周部、７ｂ……接触部
、７ｃ……折返し部、１２，１３……厚肉部。
FIG. 1 is a longitudinal cross-sectional view showing an example of a brake booster, FIG. 2 is an explanatory diagram showing rolling deformation of the folded portion of the diaphragm, and FIG. 3 is a first embodiment of the brake booster according to the present invention. A sectional view of main parts showing an example,
FIG. 4 is an enlarged sectional view of a main part of only the diaphragm of the second embodiment of the present invention. 1... Ciel, 4... Power Piston, 7...
Diaphragm, 7a...inner peripheral part, 7b...contact part, 7c...folded part, 12, 13...thick wall part.
Claims (1)
部が上記シエルに、内周部が上記パワーピストン
にそれぞれ取付けられたダイヤフラムとを備え、
このダイヤフラは、上記パワーピストンの非作動
時には、上記外周部と内周部との間にこのパワー
ピストンの背面外周縁より延出して反転折返す折
返し部と、これに引続き上記シエル内壁と接触す
る接触部とを有する倍力装置において、ダイヤフ
ラムの上記接触部に、上記折返し部より肉厚で、
かつ均一な厚さを有する環状厚肉部を形成したこ
とを特徴とする倍力装置。 A power piston that moves forward and backward within the shell, and a diaphragm that has an outer circumference attached to the shell and an inner circumference attached to the power piston,
When the power piston is not in operation, the diaphragm has a folded part that extends from the outer peripheral edge of the back surface of the power piston between the outer peripheral part and the inner peripheral part and is folded back, and subsequently contacts the inner wall of the shell. In the booster having a contact portion, the contact portion of the diaphragm is thicker than the folded portion,
A booster characterized by forming an annular thick-walled portion having a uniform thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988057885U JPH035495Y2 (en) | 1988-04-28 | 1988-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988057885U JPH035495Y2 (en) | 1988-04-28 | 1988-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0173073U true JPH0173073U (en) | 1989-05-17 |
| JPH035495Y2 JPH035495Y2 (en) | 1991-02-13 |
Family
ID=31283725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988057885U Expired JPH035495Y2 (en) | 1988-04-28 | 1988-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH035495Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0418065U (en) * | 1990-06-05 | 1992-02-14 | ||
| JPH0420871U (en) * | 1990-06-12 | 1992-02-21 |
-
1988
- 1988-04-28 JP JP1988057885U patent/JPH035495Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0418065U (en) * | 1990-06-05 | 1992-02-14 | ||
| JPH0420871U (en) * | 1990-06-12 | 1992-02-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH035495Y2 (en) | 1991-02-13 |