MULTI-DRIVING DEVICE OF ELECTRICAL EQUIPMENT FOR VEHICLE

• Main Authors: OTAKI HIROYUKI, NAITO HIROSHI
• Format: Patent
• Language: English
• Published: 13.06.1995
• Edition: 6
• Subjects: PERFORMING OPERATIONS; SEATS SPECIALLY ADAPTED FOR VEHICLES; TRANSPORTING; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR; VEHICLES IN GENERAL

PURPOSE:To minify difference of speed between movements in normal and reverse directions in a multi-driving device in which a nut member is relatively moved to an operation threaded shaft rotationally moving normally and reversely by providing a rotor adjacent to the nut body, and changing frictional resistance to be small at moving in the direction against gravity and to be large at moving in the direction following gravity. CONSTITUTION:A rotor 19 rotationally moving in one body with an operation threaded shaft 7 adjacent to a nut body 21 for elevatably moving a seat of which the upward movement is a movement against gravity and the downward movement is a movement following gravity is arranged on the side for downward moving a seat part, and when the seat part is upward moved in the direction against gravity, the nut 21 is moved in the condition of small frictional resistance against the rotor 19, and when the seat part is downward moved in the direction following gravity, the nut 21 receives frictional resistance from the rotor 19. Consequently magnitude of the frictional resistance is changed, hence difference of moving speed due to moving directions can be minified as small as possible, and the seat can be elevatably moved smoothly, surely, efficiently.