Seat recliner

Abstract

Abstract THIS INVENTION RELATES TO A SEAT RECLINER FOR CONTROLLING AN ANGLE OF RECLINATION OF A BACK-REST OF A SEAT, WHICH IS CHARACTERIZED, AMONG OTHERS, BY THE FACTS THAT NO CONTROLLING SPRING IS USED AS IN THE CONVENTIONAL DEVICES, AND THAT A SHOCK ABSORBER IS INCORPORATED SO AS TO PREVENT PROPAGATION OF VIBRATIONS PRODUCED IN THE CHASSIS FLOOR TO THE BACK-REST, AND IN WHICH AN INTERNAL GEAR IS CARRIED ON A BASE ARM FIXED TO A SEAT AND SEVERAL ROUND HOLES ARE FORMED IN A BACK ARM FIXED TO THE BACK-REST, WITH A RESILIENT PACKING BEING ROTATABLY FITTED INTO EACH OF SAID HOLES, AND AN EXTERNAL GEAR WITH TEETH LESS IN NUMBER THAN SAID INTERNAL GEAR IS COUPLED TO AND SUPPORTED BY SAID RESILIENT PACKINGS THROUGH SWINGABLE PINS. SAID EXTERNAL GEAR IS MESHED WITH SAID INTERNAL GEAR, AND IN THE CENTER HOLE OF SAID EXTERNAL GEAR IS FITTED A CAM PROVIDED ON A CAM SHAFT, THE LATTER CARRYING AT ITS END A GRIP. IN ACCORDANCE WITH ROTATION OF SAID GRIP, THE EXTERNAL GEAR IS ALSO ROTATED IN MESHED RELATION WITH THE INTERNAL GEAR THROUGH THE CAM, AND IN RESPONSE TO THIS ROTATING MOTION OF THE EXTERNAL GEAR, SAID SWINGABLE PINS ARE SWUNG ALONG A CONSTANT LOCUS WITHIN THE RESPECTIVE ROUND HOLES THROUGH THE RESILIENT PACKINGS TO THEREBY TRANSMIT THE MOVEMENT OF SAID EXTERNAL GEAR TO THE BACK ARM, SO AS TO IMPART AN INCLINATION TO THE BACK ARM CORRESPONDING TO THE GEAR RATIO BETWEEN THE INTERNAL GEAR AND THE EXTERNAL GEAR.

Inventors

• 👤 Hideaki Yasui
• 👤 Sukeo Tsurumi

Bibliographic Details