Seat height adjusting device and seat

Abstract

The invention discloses a seat height adjusting device and a seat. The height adjusting device includes a height adjuster and a four-bar linkage mechanism for adjusting the height of the seat. The height adjuster is provided with a driving gear. The height adjusting device further comprises a connecting rod portion which includes a tooth portion capable of being meshed with the driving gear, and one end of the connecting rod portion is hinged to the four-bar linkage mechanism, to drive the four-bar linkage mechanism to lift. According to the scheme, on the one hand, the number of rotational joints is reduced, only one rotational joint exists, a production assembly process is simpler, the efficiency can be improved, and the operation reliability can be improved. In addition, due to the reduction in the number of the rotational joints, when the connecting rod portion drives the four-bar linkage mechanism to move, the operation is achieved more easily, and excessive Z-direction (verticaldirection) slip is not required.

Description

technical field [0001] The invention relates to the technical field of seats, in particular to a seat height adjusting device and a seat. Background technique [0002] The car seat can be adjusted in height by a height adjustment device according to the needs of the driver. [0003] Please refer to figure 1 , figure 1 is an assembly diagram of a seat height adjustment mechanism; figure 2 for figure 1 Partial enlarged view of the middle I part. [0004] The main body of the seat adjustment mechanism is a four-link mechanism, which is the cushion skeleton of the seat, and the cushion of the seat is located above the four-link mechanism. The four-bar linkage mechanism includes the seat frame side plate 04 arranged up and down, the slide rail connecting plate, and the rear transmission rod 07 on the left and right sides, and the front transmission rod (up, down, left, and right). figure 1 for the perspective). Viewed from the driving direction, the above-mentioned four-b...

AI Technical Summary

Problems solved by technology

[0012] The number of rotating joints is large, such as image 3 As shown, the four-bar linkage mechanism driven by the high-profile device includes three rotating joints (G, F, and E), so that there are too many process control points, and the processing and assembly are more difficult;

[0013] Moreover, when the number of rotating joints is large, there will be a certain gap at each rotating joint. In this way, the more rotating joints, the larger the gap that the entire linkage mechanism can release, resulting in a larger Z-direction clearance of the cushion skeleton. Affect ride comfort

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