JPS5751555A - Negative pressure type doubler device - Google Patents
Negative pressure type doubler deviceInfo
- Publication number
- JPS5751555A JPS5751555A JP55125742A JP12574280A JPS5751555A JP S5751555 A JPS5751555 A JP S5751555A JP 55125742 A JP55125742 A JP 55125742A JP 12574280 A JP12574280 A JP 12574280A JP S5751555 A JPS5751555 A JP S5751555A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- diaphragm
- piston
- front surface
- chambers
- 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
Landscapes
- Braking Systems And Boosters (AREA)
Abstract
PURPOSE: To prevent unnecessary application of pressure to a diaphragm by putting the working chambers in communication to each other with a through hole provided in the diaphragm for penetration of tie rod when the pressure in one of the working chambers is higher than the other, and thereby balancing the two chambers in terms of pressure.
CONSTITUTION: A through hole 32, for penetration of a tie rod 30 connecting the front and rear walls of the shell 1, shall be open at the front surface 3C of a piston diaphragm 3, which is separable from a booster piston 2. The part surrounding the through hole 32 at the front surface 3C of piston diaphragm shall be set close to, but separable from, the rear end 46C of an expansion boot 46 enclosing the periphery of the tie rod 30. If the pressure in No.1 working chamber A is higher than that in No.2 working chamber B, part of the residual air in N0.1 working chamber A intrudes between the rear surface of the booster piston 2 and the front surface 3C of piston diaphragm to press said part surrounding the through hole 32 at the front surface 3C of piston diaphragm in the direction to separate from the rear end 46C of expansion boot 46, so that a gap is produced between these two and the chamber A and B are put in communication to each other. Thus the two chambers are balanced in terms of pressure.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55125742A JPS5751555A (en) | 1980-09-10 | 1980-09-10 | Negative pressure type doubler device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55125742A JPS5751555A (en) | 1980-09-10 | 1980-09-10 | Negative pressure type doubler device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56156020A Division JPS5790251A (en) | 1981-09-30 | 1981-09-30 | Negative pressure activated toggle joint and connector for master cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5751555A true JPS5751555A (en) | 1982-03-26 |
| JPS627018B2 JPS627018B2 (en) | 1987-02-14 |
Family
ID=14917661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55125742A Granted JPS5751555A (en) | 1980-09-10 | 1980-09-10 | Negative pressure type doubler device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5751555A (en) |
-
1980
- 1980-09-10 JP JP55125742A patent/JPS5751555A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS627018B2 (en) | 1987-02-14 |
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