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Machine translation
1. (WO1980001402) STEPLESS TRANSMISSION FOR HEAVY LOADS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001402    International Application No.:    PCT/JP1979/000159
Publication Date: 10.07.1980 International Filing Date: 20.06.1979
IPC:
F16H 3/72 (2006.01)
Applicants:
Inventors:
Priority Data:
78/181107 28.12.1978 JP
Title (EN) STEPLESS TRANSMISSION FOR HEAVY LOADS
(FR) TRANSMISSION CONTINUE POUR CHARGES LOURDES
Abstract: front page image
(EN)A stepless transmission adapted for less wear and capable of stepless shifting from stop to maximum speed by a simple operation even under heavy loads, but which is also capable of variable high speeds even under a loaded condition. In a planetary gear arrangement in which a planetary gear (3) meshing with the periphery of a sun gear (2) fixed to an input shaft (1) meshes with a sun gear (5) fixed to an output shaft (4), a hydraulic oil discharge control valve (11) is provided at the discharge port of a hydraulic pump (10) driven by a gear (8) located on the outer periphery of the retaining frame (7) of the gear (3). This control valve (11) controls the amount of hydraulic oil discharge to thereby control the pump (10) and accordingly the rotation of the frame (7) so as to steplessly shift the speed of the output shaft (4) via the gear (3). Accordingly this transmission is useful for steplessly shifting the speed of a transportation equipment, machine tools, winches, conveyors and the like.
(FR)Une transmission continue adaptee pour une usure moindre est capable de passer de facon continue de l"arret a une vitesse maximum par une seule operation meme dans des conditions de charge lourde, mais egalement capable de vitesses elevees variables meme sous charge. Dans un dispositif a pignons planetaires, un pignon planetaire (3) s"engrenant avec la peripherie d"un pignon central (2) fixe a un arbre d"entree (1) s"engrene avec un pignon central (5) fixe a un arbre secondaire (4), une soupape de commande de decharge d"huile hydraulique (11) est prevue a l"orifice de decharge d"une pompe hydraulique (10) entrainee par un pignon (8) situe sur la peripherie exterieure du chassis de retenue (7) du pignon (3). Cette soupape de commande (11) commande la decharge d"huile hydraulique commandant ainsi la pompe (10) et par consequent la rotation du corps (7) de maniere a changer de facon continue la vitesse de l"arbre de sortie ou secondaire (4) via le pignon (3). Par consequent, cette transmission est utile pour changer la vitesse de facon continue d"un materiel de transport, de machines-outils, de treuils, de transporteurs et autres.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)