Processing

Please wait...

Settings

Settings

Goto Application

1. WO2013012033 - NEGATIVE PRESSURE SERVO DEVICE

Publication Number WO/2013/012033
Publication Date 24.01.2013
International Application No. PCT/JP2012/068320
International Filing Date 19.07.2012
IPC
B60T 13/56 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
13Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
10with fluid assistance, drive, or release
24the fluid being gaseous
46Vacuum systems
52indirect, i.e. vacuum booster units
56with two-chamber booster units
CPC
B60T 13/565
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
13Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
10with fluid assistance, drive, or release
24the fluid being gaseous
46Vacuum systems
52indirect, i.e. vacuum booster units
565characterised by being associated with master cylinders, e.g. integrally formed
B60T 13/57
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
13Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
10with fluid assistance, drive, or release
24the fluid being gaseous
46Vacuum systems
52indirect, i.e. vacuum booster units
57characterised by constructional features of control valves
Applicants
  • 株式会社アドヴィックス ADVICS CO., LTD. [JP]/[JP] (AllExceptUS)
  • 寺崎 陽一 TERASAKI Yoichi [JP]/[JP] (UsOnly)
  • 酒井 智康 SAKAI Tomoyasu [JP]/[JP] (UsOnly)
  • 仲川 雅樹 NAKAGAWA Masaki [JP]/[JP] (UsOnly)
Inventors
  • 寺崎 陽一 TERASAKI Yoichi
  • 酒井 智康 SAKAI Tomoyasu
  • 仲川 雅樹 NAKAGAWA Masaki
Agents
  • 特許業務法人プロスペック特許事務所 PROSPEC PATENT FIRM
Priority Data
2011-15985721.07.2011JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) NEGATIVE PRESSURE SERVO DEVICE
(FR) DISPOSITIF D'ASSERVISSEMENT À PRESSION NÉGATIVE
(JA) 負圧式倍力装置
Abstract
(EN)
A holding means for holding a slide valve (60) at a predetermined front position includes a locking member (64) assembled to a power piston (30) so as to be capable of moving linearly in the radial direction, and a gutter spring (65) that impels the locking member (64) inward in the radial direction. The locking member (64) is provided with a hook (64a) that can be engaged to and disengaged from a hook (60b) provided to the slide valve (60) and forms the holding means with the gutter spring (65) or the like. When a plunger (41) advances with respect to the power piston (30) to an extent greater than a predetermined value, a pressed slope surface (64c) of the locking member (64) is pressed outward in the radial direction by a pressing slope surface (41d) of the plunger (41), and the hook (64a) of the locking member (64) is detached from the hook (60b) of the slide valve (60). A relief part (30m) is provided in the power piston (30), corresponding to the key member (63). Thereby, it is possible to solve the problems associated with defects due to bending deformation of the key member without causing new problems (increase in costs, increase in axial dimensions or the like).
(FR)
Un moyen de maintien destiné à maintenir une vanne à tiroir (60) dans une position avant prédéfinie comprend un élément de verrouillage (64) assemblé à un piston récupérateur (30) de manière à pouvoir se déplacer linéairement dans la direction radiale, et un ressort (65) de gouttière qui pousse l'élément de verrouillage (64) vers l'intérieur dans la direction radiale. L'élément de verrouillage (64) est doté d'un crochet (64a) qui peut venir en prise avec un crochet (60b) situé sur la vanne à tiroir (60) et s'en désolidariser et qui forme le moyen de maintien avec le ressort (65) de gouttière ou similaire. Lorsqu'un piston-plongeur (41) avance par rapport au piston récupérateur (30) dans une mesure supérieure à une valeur prédéfinie, une surface d'inclinaison pressée (64c) de l'élément de verrouillage (64) est pressée vers l'extérieur dans la direction radiale par une surface d'inclinaison de pressage (41d) du piston-plongeur (41), et le crochet (64a) de l'élément de verrouillage (64) se détache du crochet (60b) de la vanne à tiroir (60). Un élément de décharge (30m) se situe dans le piston récupérateur (30), correspondant à l'élément clavette (63). Ainsi, il est possible de résoudre les problèmes associés aux défauts dus à la déformation par flexion de l'élément clavette sans entraîner de nouveaux problèmes (augmentation des coûts, augmentation des dimensions axiales ou similaires).
(JA)
 スライドバルブ60を前方所定位置に保持する保持手段は、パワーピストン30に径方向にて直線的に移動可能に組付けられた係止部材64と、この係止部材64を径内方に向けて付勢するガータースプリング65を備えている。係止部材64には、スライドバルブ60に設けたフック60bと係合離脱可能でガータースプリング65等とにより前記保持手段を構成するフック64aが設けられている。プランジャ41がパワーピストン30に対して所定値より大きく前進すると、プランジャ41の押動斜面41dによって係止部材64の受動斜面64cが径外方に押動されて、係止部材64のフック64aがスライドバルブ60のフック60bから離脱する。キー部材63に対応してパワーピストン30に逃がし部30mが設けられている。これにより、キー部材の湾曲変形に起因する不具合を、新たな課題(コストアップ・軸方向寸法増加等)を生じさせることなく解決することが可能である。
Also published as
IDIDP00201400969
Latest bibliographic data on file with the International Bureau