Vehicle seat

• US 3,275,277 A
• Filed: 10/08/1964
• Issued: 09/27/1966
• Est. Priority Date: 10/08/1964
• Status: Expired due to Term

• Current Assignee: Alvin A. Rood, William A. Illar
• Original Assignee: Alvin A. Rood, William A. Illar
• Inventors: Illar, William A., Rood, Alvin A.
• Application Number:
  US04/402,497
• Time in Patent Office: 719 Days
• US Class Current: 248/566
• CPC Class Codes: B60N 2/502 attached to the base of the seat B60N2/504 takes precedence
• 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 2/548 Torsion springs, e.g. torsion helicoidal springs

Claims

1. IN COMBINATION WITH A VEHICLE FLOOR, A SEAT, A BASE CYLINDER MEMBER FIXED AT ONE END OF SAID VEHICLE FLOOR, AN UPPER CYLINDER MEMBER HAVING ONE END THEREOF TELESCOPING INTO SAID BASE CYLINDER MEMBER AND THE OTHER END SECURED TO SAID SEAT, A SUSPENSION ASSEMBLY RESILIENTLY SUPPORTING SAID SEAT ON SAID BASE CYLINDER MEMBER FOR OSCILLATING MOVEMENT RELATIVE TO THE LATTER, SAID SUSPENSION ASSEMBLYA COMPRISING A SPRING INTERCONNECTED BETWEEN SAID CYLINDER MEMBERS, A SHOCK ABSORBING DEVICE INTERCONNECTED BETWEEN SAID CYLINDER MEMBERS OF DAMPING SAID OSCILLATING MOVEMENT, SAID SHOCK ABSORBING DEVICE HAVING MEANS FOR MODULATING THE DAMPING EFFECT THEREOF, SAID LAST-MENTIONED MEANS INCLUDING A MOVABLE MEMBER WHICH WHEN DEPRESSED INCREASES THE DAMPING EFFECT OF SAID SHOCK ABSORBING DEVICE AND WHEN RELEASED DECREASES SAID DAMPING EFFECT DURING THE COMPRESSION AND EXPANSION STROKE, AN ACTUATOR PIVOTALLY SUPPORTED ON THE UPPER CYLINDER MEMBER AND OPERATIVELY ASSOCIATED WITH SAID MOVABLE MEMBER FOR NORMALLY MAINTAINING THE LATTER IN A DEPRESSED STATE, A MASS PIVOTALLY CONNECTED TO THE UPPER CYLINDER MEMBER AND OPERATIVELY ASSOCIATED WITH SAID ACTUATOR, SAID MASS BEING RESPONSIVE TO ACCELERATION FORCES TO PROVIDE RELATIVE VERTICAL MOVEMENT BETWEEN SAID MASS AND SAID UPPER CYLINDER MEMBER SO AS TO CONTROL THE POSITION OF THE ACTUATOR AND THE DAMPING EFFECT OF THE SHOCK ABSORBING DEVICE DURING OSCILLATING MOVEMENT OF THE SEAT.