High-low sliding rail structure of automobile seat

Abstract

Provided is a high-low sliding rail structure of an automobile seat. The high-low sliding rail structure of the automobile seat comprises an upper sliding rail, a lower sliding rail, and a locking structure, wherein the upper sliding rail is connected with the automobile seat, the lower sliding rail is fixed on an automobile body, the upper sliding rail is in sliding fit with the lower sliding rail, and a plurality of locking holes are evenly distributed in the bottom part of the lower sliding rail; the locking structure comprises a pressing spring, a gear plate, a fixed bracket and four groups of retainers, rollers and steel balls; the pressing spring is engaged with the lower sliding rail through the gear plate, so that a locking status is achieved. By means of cooperation between the high-low sliding rails and a roller structure, the adjustable unlocking angle is realized, unlocking space is enlarged, the problem of short travel is solved, the problem of uneven stressing is solved to the maximum extent, safety and stability are improved, and sliding rail loading is more convenient by adopting the side-fixed locking structure.

Description

technical field [0001] The invention belongs to the technical field of vehicle seats, in particular to a high and low slide rail structure for a car seat. Background technique [0002] As one of the key components of the seat, the car seat slide rail is a mechanism for changing the front and rear positions of the seat, and generally consists of an upper slide rail and a lower slide rail. The upper slide rail is connected with the seat, the lower slide rail is fixed on the vehicle body, and the upper and lower slide rails are connected by rollers and slide relative to each other. [0003] Chinese Invention Patent Authorization Announcement No. CN202806443U discloses a "manual longitudinal slide rail for a car seat", which has the advantages of smooth sliding of the slide rail, small clearance, simple overall structure and low cost. However, the following problems are still exposed in the actual use process: [0004] 1. According to the end view of the slide rail, when the s...

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Problems solved by technology

[0006] 3. Because the end face of the slide rail is symmetrically designed, when the seat belt fixed point test is applied forward and inward at the same time, the upper slide rail will produce a large inward deflection deformation;

[0007] 4. Since the unlocking handle is inserted at the front end of the slide rail, the installation space of the fixing bolts in front of some seats is affected

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