Air ride seat pedestal with independent height adjustment
First Claim
1. A seat pedestal for a vehicle to cushion the ride of an occupant, said seat pedestal comprising:
- a base;
a top carrier, adapted for having a seat mounted thereon;
a first linkage having a lower end and an upper end, said lower end of said first linkage being pivotally connected to said base, said upper end of said first linkage slidably connected to said top carrier;
a second linkage having a lower end and an upper end, said second linkage having a pivotal connection to said first linkage, said pivotal connection being intermediate to said upper and lower ends of said first linkage and intermediate to said upper and lower ends of said second linkage;
said upper end of said second linkage pivotally connected to said top carrier;
a third linkage having an upper end and a lower end, said upper end of said third linkage pivotally connected to said lower end of said second linkage, said lower end of said third linkage pivotally connected to said base;
a stop being retained within said top carrier and located inwardly of said upper end of said first linkage said stop restricting inward sliding movement of said upper end of said first linkage; and
a spring urging said top carrier upward relative to said base and biasing said upper end of said first linkage inwardly.
14 Assignments
0 Petitions
Accused Products
Abstract
An adjustable seat pedestal that allows a user to adjust the height of the seat without sacrificing ride quality. The seat pedestal has a top carrier onto which a seat is mounted and a base that is mounted to the floor of a vehicle. A scissor linkage is employed to allow movement of the carrier toward the base when force is applied through the seat to the carrier when the vehicle hits bumps and forces the user downward. An air bag biases the top carrier upward away from the base. As the upper ends of the scissor linkage move closer together by being pushed upward, a sliding end of the scissor linkage is restrained from movement inward and therefore, limits the maximum height of the pedestal. The pressure in the air bag may be varied which will not change the height above the maximum, but will change the ride quality.
125 Citations
7 Claims
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1. A seat pedestal for a vehicle to cushion the ride of an occupant, said seat pedestal comprising:
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a base; a top carrier, adapted for having a seat mounted thereon; a first linkage having a lower end and an upper end, said lower end of said first linkage being pivotally connected to said base, said upper end of said first linkage slidably connected to said top carrier; a second linkage having a lower end and an upper end, said second linkage having a pivotal connection to said first linkage, said pivotal connection being intermediate to said upper and lower ends of said first linkage and intermediate to said upper and lower ends of said second linkage;
said upper end of said second linkage pivotally connected to said top carrier;a third linkage having an upper end and a lower end, said upper end of said third linkage pivotally connected to said lower end of said second linkage, said lower end of said third linkage pivotally connected to said base; a stop being retained within said top carrier and located inwardly of said upper end of said first linkage said stop restricting inward sliding movement of said upper end of said first linkage; and a spring urging said top carrier upward relative to said base and biasing said upper end of said first linkage inwardly. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification