Yieldable vehicle seat

• US 3,139,304 A
• Filed: 10/19/1961
• Issued: 06/30/1964
• Est. Priority Date: 10/26/1960
• Status: Expired due to Term

• Current Assignee: Alfred Kinshofer, Wilhelm Lehner
• Original Assignee: Alfred Kinshofer, Wilhelm Lehner
• Inventors: WILHELM LEHNER, ALFRED KINSHOFER
• Application Number:
  US04/146,143
• Time in Patent Office: 985 Days
• US Class Current: 297/308
• CPC Class Codes: B60N 2/504 attached to the base and the backrest
• CPC Class Codes: B60N 2/505 Adjustable suspension including height adjustment
• CPC Class Codes: B60N 2/506 Seat guided by rods
• CPC Class Codes: B60N 2/509 Seat guided by slides or the like
• CPC Class Codes: B60N 2/548 Torsion springs, e.g. torsion helicoidal springs

Claims

1. A YIELDABLE VEHICLE SEAT COMPRISING, IN COMBINATION, A LOWER SEAT PORTION AND A BACK PORTION FIXED TO THE REAR OF AND EXTENDING UPWARDLY FROM SAID LOWER SEAT PORTION;

GUIDE MEANS LOCATED TO THE REAR OF AND ADJACENT TO SAID BACK PORTION FOR GUIDING SAID SEAT AND BACK PORTIONS FOR UP AND DOWN MOVEMENT, SAID GUIDE MEANS INCLUDING AN ELONGATED GUIDE MEMBER EXTENDING IN A SUBSTANTIALLY VERTICAL DIRECTION;

ELASTIC MEANS YIELDABLY RESISTING DOWNWARD MOVEMENT OF SAID BACK AND SEAT PORTIONS, SAID ELASTIC MEANS INCLUDING AT LEAST ONE ELASTIC MEMBER LOCATED ON ONE SIDE OF SAID GUIDE MEMBER AND AT LEAST ONE OTHER ELASTIC MEMBER LOCATED ON THE OTHER SIDE OF SAID GUIDE MEMBER, SAID ELASTIC MEMBERS BEING CONNECTED TO SAID BACK PORTION AND EXTENDING THEREFROM IN A PREDETERMINED DIRECTION WHEN SAID BACK AND SEAT PORTIONS ARE NOT LOADED;

A SCREW MEMBER FIXED TO SAID GUIDE MEMBER AT THE ELEVATION OF SAID ELASTIC MEANS AND EXTENDING FROM THE REAR OF SAID GUIDE MEMBER AWAY FROM SAID BACK PORTION APPROXIMATELY IN THE SAME DIRECTION THAT SAID ELASTIC MEANS EXTENDS WHEN SAID SEAT AND BACK PORTIONS ARE NOT LOADED;

A NUT THREADEDLY CARRIED BY SAID SCREW MEMBER, SO THAT BY TURNING SAID NUT THE POSITION THEREOF ALONG SAID SCREW MEMBER CAN BE ADJUSTED;

A SUBSTANTIALLY U-SHAPED MEMBER TURNABLY CARRIED BY SAID NUT, SAID GUIDE MEMBER BEING RECEIVED AT LEAST IN PART IN SAID U-SHAPED MEMBER, AND SAID ELASTIC MEMBERS OF SAID ELASTIC MEANS BEING CONNECTED TO SAID U-SHAPED MEMBER SO THAT BY TURNING SAID NUT THE PRETENSION OF THE ELASTIC MEMBERS OF SAID ELASTIC MEANS MAY BE ADJUSTED.