EP 1077852 A1 20010228 - VACUUM BRAKE BOOSTER HAVING AN ELECTRIC SIGNAL GENERATING DEVICE
Title (en)
VACUUM BRAKE BOOSTER HAVING AN ELECTRIC SIGNAL GENERATING DEVICE
Title (de)
UNTERDRUCKBREMSKRAFTVERSTÄRKER MIT ELEKTRISCHER SIGNALERZEUGUNGSEINRICHTUNG
Title (fr)
SERVOFREIN A DEPRESSION COMPORTANT UN SYSTEME DE PRODUCTION DE SIGNAL ELECTRIQUE
Publication
Application
Priority
- DE 19822010 A 19980515
- EP 9903042 W 19990504
Abstract (en)
[origin: DE19822010C1] The invention relates to a vacuum brake booster (10) comprising a housing (12) and a wall (14) which can move in an axial manner and which is arranged in said housing. The wall divides the housing (12) into a first chamber (18) and into a second chamber (20) which is separated therefrom. In order to detect the actuating state of the vacuum brake booster (10), the vacuum brake booster is provided with a device (34) for generating an electric signal which indicates the actuation of said booster. The device (34) comprises a tube (38) which is guided into the housing (12) through a wall (36) thereof and which is sealed from outside. An axially displaceable tappet (40) is arranged in the tube (38). Said tappet (40) interacts with an electric switching mechanism (44) and is spring-loaded in a direction toward the spring element (46). The spring element (46) is supported on the moveable wall (14) when said wall is in the rest position, and thus does not transmit force to the tappet (40) which leads to the displacement of the same. After the moveable wall (14) is displaced from the rest position, the spring element (46) acts upon the tappet head (42) of the tappet (40) and provokes an axial displacement of the same which actuates the electric switching mechanism (44).
IPC 1-7
IPC 8 full level
B60T 13/52 (2006.01); B60T 13/563 (2006.01); B60T 13/567 (2006.01); B60T 17/22 (2006.01)
CPC (source: EP)
B60T 13/52 (2013.01); B60T 13/563 (2013.01); B60T 13/5675 (2013.01); B60T 17/22 (2013.01)
Citation (search report)
See references of WO 9959855A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 19822010 C1 19990602; EP 1077852 A1 20010228; WO 9959855 A1 19991125
DOCDB simple family (application)
DE 19822010 A 19980515; EP 9903042 W 19990504; EP 99923519 A 19990504