Tethered vehicle operator's seat having wide range of fore and aft adjustment

• US 4,593,875 A
• Filed: 12/24/1984
• Issued: 06/10/1986
• Est. Priority Date: 09/26/1983
• Status: Expired due to Fees

• Current Assignee: Milsco Manufacturing Company Milwaukee Wisconsin
• Original Assignee: Milsco Manufacturing Company (Jason Industries, Inc.)
• Inventors: Hill, Kevin E.
• Primary Examiner(s): Foss, J. Franklin
• Assistant Examiner(s): Olson, Robert A.
• Application Number:
  US06/685,393
• Time in Patent Office: 533 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, 248/598, 248/658, 248/429, 248/424, 248/430, 297/347, 297/344, 297/353-355
• US Class Current: 248/429
• 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 tethered vehicle operator'"'"'s seat assembly which includes a sub-frame slidably mounted on a pedestal, a seat support frame supporting an operator'"'"'s seat, an operator'"'"'s seat belt for the seat, and a tether belt is connected between the seat and the slidable sub-frame for absorbing the load on the seat belt when the operator lunges forward during a sudden stop, for example, and regardless of the position of the slidable sub-frame relative to the pedestal. Tubular guides are located between the sub-frame and the pedestal, and are dimensioned so as to provide a wide range of fore and aft movement for said seat assembly.

Claims

1. A tethered vehicle operator'"'"'s seat assembly comprising a seat assembly supporting pedestal, said pedestal having fore and aft extending tubular guide means for fore and aft slidable seat assembly movement, a seat assembly mounted on said pedestal and comprising:

a slidable sub-frame having fore and aft extending tubes slidably mounted in said tubular guide means, said fore and aft extending tubes of said slidable sub-frame being about twice as long as said fore and aft adjustment of said sub-frame over a wide range of movement, a fore and aft hook shaped safety stop means operative between said pedestal and said slidable sub-frame, said stop means including flat steel bar stops welded along the side of said tubular guide means, and also including upwardly facing hooks welded to said slidable sub-frame, said hooks engaging said bar stops to limit relative forward tipping movement of said sub-frame relative to said pedestal when said tether belt means is tensioned excessively and regardless of the position of the slidable sub-frame relative to said pedestal, a seat support frame having an operator'"'"'s seat, a seat belt for an operator on said seat, and tether belt means connected between said seat and said slidable sub-frame for absorbing the load imposed on said seat belt when a sudden stop occurs and said operator lunges forwardly.