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.
Patent No.:
Date of Patent:
Oct. 03, 1989
Filed:
Apr. 29, 1988
Torao Hattori, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A belt-and-pulley continuously variable transmission comprises a driver pulley mounted on an input shaft and comprising a fixed conical member and a movable conical member, a driven pulley mounted on an output shaft and comprising a fixed conical member and a movable conical member, and a V-belt trained around the driver and driven pulleys. The movable conical members are axially movable to vary the effective diameters of the driver and driven pulleys for controlling the transmission ratio. The movable conical members are disposed on opposite sides of the V-belt. The transmission further includes a main servomechanism operatively coupled to the movable conical members for controlling axial movement of the movable conical members. As a feature of the servomechanism control, the transmission includes a first servomechanism for producing a prescribed amount of movement in a prescribed direction based on a prescribed signal, and a second servomechanism operatively connected to the first servomechanism and one of the driver and driven pulleys for applying the prescribed amount of movement produced by the first servomechanism to said one pulley.