A seat slide rail universal unlocking structure

Abstract

The invention discloses a seat sliding rail universal unlocking structure. The seat sliding rail universal unlocking structure includes a left sliding rail assembly and a right sliding rail assembly,wherein the structure of the left sliding rail assembly is the same with the structure of the right sliding rail assembly. The left sliding rail assembly comprises a lower rail and upper rails. The lower rail and the upper rails are slidably connected. A locking mechanism is arranged between the lower rail and the upper rails. The locking mechanism further includes an unlocking handle for unlocking the locking mechanism. The unlocking handle comprises a rotating connecting rod and a universal connecting mechanism. The two ends of the rotating connecting rod are connected with the two upper rails through the universal connecting mechanism. The universal connecting mechanism comprises a ball head, a spherical bushing and a maintaining frame. According to the seat sliding rail universal unlocking structure, synchronous unlocking of sliding rails with the inner sides and the outer sides of different heights / different back and forth / different heights and different back and forth is achieved; the spherical bushing extrudes the maintaining frame through a self extruding spring, clearance after the left sliding rail assembly and the right sliding rail assembly are installed can be eliminated through the ball head and the connecting rod, the influence on the sliding rails due to the mounting position deviation of a skeleton can also be reduced, and the internal stress in a system afterthe whole seat is fixed is eliminated; and the seat sliding rail universal unlocking structure is simple in structure, good in synchronization and smooth in unlocking.

Description

technical field [0001] The invention relates to the technical field of car seats, in particular to a universal unlocking structure of a seat slide rail. Background technique [0002] In the current application of external manual slide rails for car seats, in order to ensure the synchronization of the whole seat unlocking, the left and right side slide rails (1', 2') are usually arranged at the same level, but there are also arrangements such as high and low slide rails. . refer to Figure 1-2 As shown, an unlocking handle 3' is connected in the middle of the traditional high and low slide rails, but the rotation centers of the slide rails on both sides are not on the same straight line. When a vertical upward unlocking force is applied to the unlocking handle, it rotates around an inclined rotation center. During the rotation, the other end of the connecting rod 4' squeezes the unlocking parts on the slide rails on both sides. At this time, the upper rail Unlock and adjust...

AI Technical Summary

Problems solved by technology

[0003] However, when this design is unlocked, because the unlocking handle is rigidly connected, but the rotation center is inclined, there is internal stress during the unlocking process, the unlocking is not smooth, and the unlocking is not synchronized

Due to the inclination of the rotation center, there is internal stress, and the horizontal design of the bushings installed on both sides, the bushings are seriously worn, which affects the service life

Images