Resiliently suspended, tiltable and tethered vehicle operator's seat having fore and aft adjustment

• US 4,533,110 A
• Filed: 09/26/1983
• Issued: 08/06/1985
• Est. Priority Date: 09/26/1983
• Status: Expired due to Term

• Current Assignee: Jason Incorporated (Jason Industries, Inc.)
• Original Assignee: Milsco Manufacturing Company (Jason Industries, Inc.)
• Inventors: Hill, Kevin E.
• Primary Examiner(s): Schultz, William H.
• Assistant Examiner(s): OLSON, ROBERT
• Application Number:
  US06/535,728
• Time in Patent Office: 680 Days
• Field of Search: 248/573, 248/371, 248/393, 248/397, 248/398, 248/157, 248/419, 248/421, 248/423, 248/580, 248/581, 248/592, 248/658, 297/347, 297/353, 297/354, 297/355
• US Class Current: 248/573
• CPC Class Codes: B60N 2/06 slidable B60N2/12 , B60N2/2209 take precedence
• CPC Class Codes: B60N 2/14 rotatable, e.g. to permit easy access B60N2/10 , B60N2/2869 take precedence
• CPC Class Codes: B60N 2/1839 pivoting about an axis located in an intermediate position
• CPC Class Codes: B60N 2/24 for particular purposes or particular vehicles
• 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 2/544 Compression or tension springs B60N2/542 takes precedence
• CPC Class Codes: B60N 2/62 Thigh-rests B60N2/914 takes precedence

Abstract

A resiliently suspended, tiltable and tethered vehicle operator'"'"'s seat assembly which includes a sub-frame slidably mounted on a pedestal, a seat support frame resiliently supporting an operator'"'"'s seat, the seat support frame being pivotally mounted about a transverse horizontal axis to the slidable sub-frame to permit the seat support frame and its resiliently mounted seat to tilt as a unit about the transverse axis; and a tether belt is connected between the seat and the slidable sub-frame for limiting the tilting movement of the seat support frame, the seat and the resilient support regardless of the position of the slidable sub-frame relative to the pedestal.

Claims

1. A resiliently suspended, tiltable and tethered vehicle operator'"'"'s seat assembly for an earth-working vehicle such as a backhoe wherein an earth-working bucket or the like is operative to form an excavation in the ground and at the rear end of the vehicle and the operator is positioned on a vehicle seat located adjacent said rear end of said vehicle whereby the operator must visually observe the excavation being done, said seat assembly comprising:

a seat assembly supporting pedestal secured to said vehicle adjacent one end thereof, said pedestal having a pair of laterally spaced seat assembly guide tubes, a slidable sub-frame slidably mounted on said guide tubes, a seat support frame supporting an operator'"'"'s seat and also supporting resilient means for supporting said seat on said seat support frame, pivot means for pivotally connecting said support frame about a transverse horizontal axis to said sub-frame to permit said seat support frame, said seat and said resilient support means to tilt as a unit about said axis; and

tether belt means connected between said seat and said slidable sub-frame for limiting the tilting movement of said seat support frame, said seat and said resilient means regardless of the position of the slidable sub-frame relative to said pedestal, safety stop means located between said pedestal and said slidable sub-frame to limit relative movement therebetween when said tether belt means is tensioned excessively, said safety stop means including flat steel bar stops welded along the side of said guide tubes, and also includes upwardly facing hooks welded to said slidable sub-frame, said hooks engaging said bar stops when said tether belt means is tensioned excessively.