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1. (WO1992009838) SWITCH FOR DETECTING THE OPERATION OF CONTROL VALVE SPOOL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009838 International Application No.: PCT/JP1991/001618
Publication Date: 11.06.1992 International Filing Date: 26.11.1991
Chapter 2 Demand Filed: 12.05.1992
IPC:
F16H 59/68 (2006.01) ,F16H 61/02 (2006.01) ,F16K 37/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
59
Control inputs to change-speed- or reversing-gearings for conveying rotary motion
68
Inputs being a function of gearing status
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
61
Control functions within change-speed- or reversing-gearings for conveying rotary motion
02
characterised by the signals used
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
K
VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
37
Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
Applicants:
KABUSHIKI KAISHA KOMATSU SEISAKUSHO [JP/JP]; 3-6, Akasaka 2-chome Minato-ku Tokyo 107, JP (AllExceptUS)
KUMA, Masaaki [JP/JP]; JP (UsOnly)
Inventors:
KUMA, Masaaki; JP
Agent:
HASHIZUME, Yoshihiko; Komatsu Bldg. 3-6, Akasaka 2-chome Minato-ku Tokyo 107, JP
Priority Data:
2/130436 U30.11.1990JP
Title (EN) SWITCH FOR DETECTING THE OPERATION OF CONTROL VALVE SPOOL
(FR) COMMUTATEUR DESTINE A DETECTER LE FONCTIONNEMENT D'UNE BOBINE DE VANNE DE COMMANDE
Abstract:
(EN) A detector switch is provided to confirm that an electric signal from the controller to the electromagnetic valve is transformed into the operation of a control valve spool when the speed of an automobile or a construction machine is changed through a transmission. Therefore, the control valves (11, 12, 13) are provided with the detector switch (7) that is capable of transmitting a signal to the controller (5) when a valve spool (3) has come in contact therewith in a transmission that has the spool (3) for switching the electromagnetic valves (21, 22, 23) connected to the controller (5) to change the clutch hydraulic pressure to change the speed.
(FR) Un commutateur de détection est utilisé pour confirmer qu'un signal électrique allant d'un régulateur à une vanne électromagnétique fait fonctionner la bobine d'une vanne électromagnétique lorsque la vitesse d'une automobile ou d'un engin de construction est modifiée par l'intermédiaire d'un dispositif de transmission. Pour cela, les vannes de commande (11, 12, 13) sont pourvues d'un commutateur de détection (7) qui peut envoyer un signal au régulateur (5) lorsqu'une bobine de vanne (3) est entrée en contact avec ledit commutateur, dans un dispositif de transmission qui possède ladite bobine (3) pour faire commuter les vannes électromagnétiques (21, 22, 23) reliées au régulateur (5) afin de modifier la pression hydraulique de l'embrayage et ainsi faire changer la vitesse.
Designated States: KR, US
European Patent Office (DE, FR, GB, IT)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
US5484352