Vehicle seat, especially for agricultural vehicles

• US 3,326,603 A
• Filed: 10/23/1965
• Issued: 06/20/1967
• Est. Priority Date: 06/15/1965
• Status: Expired due to Term

• Current Assignee: Wilhelm Lehner
• Original Assignee: Wilhelm Lehner
• Inventors: WILHELM LEHNER
• Application Number:
  US04/503,294
• Time in Patent Office: 605 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 2/544 Compression or tension springs B60N2/542 takes precedence

Claims

1. A VEHICLE SEAT STRUCTURE, ESPECIALLY FOR AN AGRICULTURAL VEHICLE, COMPRISING A SEAT HAVING A BACKREST THEREON, A SUBSTANTIALLY L-SHAPED FRAME FOR SUPPORTING SAID SEAT, A SUBSTANTIALLY L-SHAPED FRAME FOR MOUNTING SAID SEAT AND SAID SUPPORTING FRAME ON THE VEHICLE, SAID FRAMES BEING SPACED FROM EACH OTHER SO AS TO FORM THE FRONT AND REAR WALLS OF A HOUSING, AT LEAST ONE PAIR OF GUID ROLLERS ROTATABLY MOUNTED ON SAID SUPPORTING FRAME, GUIDING MEANS FOR SAID ROLLERS MOUNTED ON THE REAR PART OF SAID MOUNTING FRAME WITHIN SAID HOUSING, RESILIENT SUSPENSION MEANS ENCLOSED BY AND EXTENDING SUBSTANTIALLY VERTICALLY WITHIN SAID HOUSING AND COMPRISING ELASTIC ELEMENTS AND A SHOCK ABSORBER EACH BEING SECURED AT ONE END TO THE REAR PART OF SAID SUPPORTING FRAME AND AT THE OTHER END TO THE REAR PART OF SAID MOUNTING FRAME, AN ADJUSTING SPINDLE ROTATABLY MOUNTED IN THE UPPER END WALL OF SAID HOUSING AND EXTENDING IN A SUBSTANTIALLY VERTICAL DIRECTION WITHIN SAID HOUSING, A MEMBER FOR SUSPENDING THE UPPER ENDS OF SAID ELASTIC ELEMENTS, THREADEDLY MOUNTED ON SAID SPINDLE SO AS TO BE LONGITUDINALLY ADJUSTABLE THEREON, AND MEANS ON THE REAR WALL OF SAID HOUSING ENGAGED WITH A PROJECTING PORTION OF SAID SUSPENSION MEMBER FOR PRECLUDING ROTATION OF SAID SUSPENSION MEMBER RELATIVE TO SAID REAR WALL.