The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 07, 1997

Filed:

Mar. 15, 1996
Applicant:
Inventors:

Akira Hayashi, Saitama-ken, JP;

Kunihiko Tanaka, Saitama-ken, JP;

Goroei Wakatsuki, Saitama-ken, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ; F16H / ;
U.S. Cl.
CPC ...
477 44 ; 474 18 ; 475210 ;
Abstract

In a vehicle travelling by use of a travelling drive source such as an engine or a motor, the gear shift ratio of a continuously variable transmission B can be changed by increasing or decreasing the width of a groove in a driving pulley 19 of the continuously variable transmission B by a gear shift ratio changing device 61 using a motor 62 as a drive source. The motor 62 is controlled on the basis of output signals from a throttle opening degree sensor, an engine rotational speed sensor and a vehicle speed sensor, thereby enabling an energy-saving travelling suited to an operational condition of the travelling drive source or a travelling condition of the vehicle. The gear shift ratio changing device 61 is supported in a floating manner within a casing 3, 8 for the continuously variable transmission B. This achieves not only a reduction in size of a power unit, but also ensures that any operational sound of the motor 62 is prevented from leaking out, and any vibration from the engine or a wheel cannot be transmitted to the gear shift ratio changing device 61.


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