Title:
NEGATIVE PRESSURE TYPE BOOSTER
Document Type and Number:
WIPO Patent Application WO/2018/159667
Kind Code:
A1
Abstract:
The negative pressure type booster 10 is provided with a check valve 100 having: a body part 110 which is air-tightly mounted on a negative pressure introduction port 15 via a grommet 150 tightly attached to a booster shell 11; and a communication part 112d which is connected to a connection pipe 21 at an angle with respect to the direction of an axial line L1 of the body part 110. In addition, the negative pressure type booster 10 is provided with: a first engagement mechanism K1 which is configured from a protrusion part 113 disposed on the body part 110 and an engagement recessed part 154 disposed on the grommet 150 and engaging with and accommodating the protrusion part 113; and a second engagement mechanism K2 which is configured from an engagement convex part 155 disposed on the grommet 150 and a through-hole 11a1 disposed in the booster shell 11 and engaging with and accommodating the engagement convex part 155.
Inventors:
KURODA MASARU (JP)
WATANABE MINORU (JP)
WATANABE MINORU (JP)
Application Number:
PCT/JP2018/007478
Publication Date:
September 07, 2018
Filing Date:
February 28, 2018
Export Citation:
Assignee:
ADVICS CO LTD (JP)
International Classes:
B60T13/52; B60T13/567; B60T17/00
Foreign References:
| JP2004529804A | 2004-09-30 | |||
| JPH09202229A | 1997-08-05 | |||
| DE10351314A1 | 2004-05-27 | |||
| FR2939865A1 | 2010-06-18 | |||
| JPS6259159A | 1987-03-14 | |||
| DE3212142C1 | 1983-07-07 |
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