Universal seat suspension system
First Claim
1. A seat suspension system for supporting a seat of an industrial vehicle, said seat suspension system comprising:
- a seat cradle;
a seat mounted in said seat cradle, said seat having a sitting portion and a backrest portion;
an anchor body having means for attachment to a frame of said industrial vehicle;
two pairs of spaced-apart parallel bars;
each of said bars having spaced-apart first and second ends, said first ends being movably connected to said anchor body and said second ends being movable connected to said seat cradle for allowing a movement of said seat cradle relative to said anchor body;
an air bellows having a first end connected to said seat cradle and a second end connected to said anchor body for cushioning said movement of said seat cradle;
said anchor body having a hollow shape disposed behind said backrest portion of said seat, and said means for attachment to a frame of said industrial vehicle comprising a pair of spaced-apart parallel anchor plates on said anchor body;
such that said anchor body is adaptable for use with various mounting kits for securement thereof to a variety of different models of industrial vehicles.
1 Assignment
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Accused Products
Abstract
A seat suspension system having a seat cradle, a seat mounted in the seat cradle and an anchor body having a plain rectangular box-like shape disposed behind the backrest portion of the seat. A pair of spaced-apart plain parallel anchor plates encloses the anchor body. There are also provided two pairs of spaced-apart parallel bars each having spaced-apart first and second ends, the first ends being movably connected to the anchor body and the second ends being movable connected to the seat cradle for allowing a movement of the seat cradle relative to the anchor body. An air bellows is mounted inside the anchor body. The air bellows has an upper end connected to the seat cradle and a lower end connected to the anchor body. A variety of attachment kits may be affixed to the anchor plates for mounting the seat suspension system to different models of industrial vehicles.
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Citations
19 Claims
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1. A seat suspension system for supporting a seat of an industrial vehicle, said seat suspension system comprising:
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a seat cradle;
a seat mounted in said seat cradle, said seat having a sitting portion and a backrest portion;
an anchor body having means for attachment to a frame of said industrial vehicle;
two pairs of spaced-apart parallel bars;
each of said bars having spaced-apart first and second ends, said first ends being movably connected to said anchor body and said second ends being movable connected to said seat cradle for allowing a movement of said seat cradle relative to said anchor body;
an air bellows having a first end connected to said seat cradle and a second end connected to said anchor body for cushioning said movement of said seat cradle;
said anchor body having a hollow shape disposed behind said backrest portion of said seat, and said means for attachment to a frame of said industrial vehicle comprising a pair of spaced-apart parallel anchor plates on said anchor body;
such that said anchor body is adaptable for use with various mounting kits for securement thereof to a variety of different models of industrial vehicles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A seat suspension system for supporting a seat of an industrial vehicle, said suspension system comprising:
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a seat cradle;
a seat mounted in said seat cradle, said seat having a sitting portion and a backrest portion;
an anchor body having a hollow shape and a pair of parallel spaced-apart anchor plates enclosing said hollow shape, said anchor body being disposed behind said backrest portion of said seat;
said anchor body also having two pairs of spaced-apart parallel bars;
each of said bars having spaced-apart first and second ends, said first ends being movably connected to said anchor body and said second ends being movable connected to said seat cradle for allowing a movement of said seat cradle relative to said anchor body;
an air bellows having an upper end connected to said seat cradle and a lower end connected to said anchor body for cushioning said movement of said seat cradle;
said two pairs of parallel bars comprising an upper pair of parallel bars and a lower pair of parallel bars;
said bars in said upper pair being rigidly connected to one-another by a torsion rod for preventing movement of said parallel bars in said upper pair relative to one-another;
said torsion rod being mounted in a pair of bearing blocks having adjustable connection means retaining said bearing blocks to said anchor body; and
connection means affixed to said anchor plates for attachment to a frame of said industrial vehicle, said connection means comprising a swing-out attachment kit comprising a hinged connection having an axis of rotation aligned substantially perpendicular to a sitting plane of said sitting portion for allowing said seat cradle and said anchor body to move from a vehicle-driving position to a vehicle-servicing position different from said vehicle-driving position when said swing-out attachment kit is adapted to be mounted to said frame of said industrial vehicle;
such that a position of said torsion rod relative to said anchor body, and a levelling of said seat cradle are adjustable by working said adjustable connection means, and said seat cradle and said anchor body being simultaneously movable about said axis of rotation. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification