Seat rail for vehicles
AssigneeDymos Inc.
InventorsJae Ho Chung, Jin Sik Kim
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a seat rail for vehicles. The seat rail of this invention eliminates gaps between a lower track and an upper track in horizontal and vertical directions, and distributes a load transmitted through the upper track, thus improving overall durability. The invention reduces the number of parts required, thus reducing the cost of a product and the working hours, realizing a light product, reducing fuel consumption, improving operational performance, reducing operational noise, and improving operating sensation. Further, the invention secures strength sufficient to support bending moment of the upper track, which is a concern during a head-on collision or a rear-end collision, thus maximizing the safety of passengers.
Claims4
A seat rail for vehicles, comprising:
- a lower track mounted to a floor panel in a longitudinal direction of a vehicle body, both ends of the lower track being bent in such a way as to have a bilaterally symmetrical structure, thus defining a rail groove in the lower track;
- an upper track comprising an assembly of an inner panel with an outer panel, overlapping first ends of the inner and outer panels being coupled to a seat cushion frame, and second ends of the inner and outer panels being bifurcated from each other and bent to be fitted into both ends of the rail groove;
- a left bearing seat defined by an end of an outer panel located in the rail groove and a portion of the lower track facing the end of the outer panel to have a shape of symmetrical arcs;
- a right bearing seat defined by an end of an inner panel located in the rail groove and a portion of the lower track facing the end of the inner panel to have a shape of symmetrical arcs;
- a plurality of ball bearings seated in the left and right bearing seats, and installed to be in point contact with the lower track and the inner panel, and to be in point contact with the lower track and the outer panel;
- a plurality of roller members interposed between a bottom of the lower track defining the rail groove and a bottom of the inner panel facing the bottom of the lower track, and between the bottom of the lower track and a bottom of the outer panel facing the bottom of the lower track, and coming into point contact with the bottoms.
Dependencies are inferred from the claim text.