Supports – Stand – Adjustable vertically
Patent
1998-03-31
1999-09-14
Berger, Derek J.
Supports
Stand
Adjustable vertically
108145, 24734417, F16M 1300
Patent
active
059509775
ABSTRACT:
In the operation of a construction machine, various forces are exerted on a seat which are dampened by a shock absorber. A seat suspension mechanism is provided between the seat and the shock absorber for coordinating the movement of the seat. The seat suspension system has first and second pairs of link arms arranged on opposite sides of the seat. The first and second pairs of link arms each have a controller and follower arm which are pivotally joined substantially at a midpoint therealong. A first end of the controller arms are fixedly mounted for pivotally movement to the front portion of the base with a second end fixedly mounted for pivotally movement to the rear portion of the seat to provide movement along an arcuate path in response to the plurality of forces exerted during operation of the machine. A first end of the follower arms are operatively associated with the front portion of the bottom surface of the seat with a second end operatively associated with the rear portion of the base to provide movement along a second predetermined path. The second predetermined path allows for corrective motion to compensate the arcuate path of the controller arms which provides a substantially constant distance between the seat and a foot-operated control pedal throughout the movement of the seat.
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Proksch Frederick D.
York Lyle E.
Berger Derek J.
Charlton Diana L.
Wood Kimberly
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