Seat adjustment structure

Abstract

The present invention discloses a seat adjustment structure, comprising an angle adjustment handle, a linkage shaft, and an angle adjuster installed at both ends of the linkage shaft, the angle adjustment handle is fixedly connected to the linkage shaft, the linkage shaft is fixedly connected to the axis of the angle adjuster, the seat adjustment structure also comprises a vortex spring fixing plate, an angle adjustment vortex spring, a torsion bar spring and a limiting plate, the vortex spring fixing plate is installed on the linkage shaft, the limiting plate is fixedly connected to the linkage shaft, the two ends of the angle adjustment vortex spring are respectively buckled with the angle adjustment handle and the vortex spring fixing plate, the two ends of the torsion bar spring are respectively buckled with the vortex spring fixing plate and the limiting plate, and the torsion bar spring and the limiting plate are effectively prevented from slightly shaking after the seat back angle is adjusted through the torsion bar spring and the limiting plate.

Description

Technical Field

[0001] The invention relates to the field of automobiles, and in particular to a seat adjustment structure. Background Art

[0002] In order to adjust the backrest angle of the front manual car seat, a manual recliner is generally used as an unlocking and self-locking device to ensure that the seat provides sufficient strength when impacted. The recliner handle is installed on the outside of the seat, so the recliners on both sides of the seat need to be unlocked by the recliner handle at the same time to achieve the adjustable function of the backrest. In order to unlock the recliners on both sides at the same time, the linkage shaft and the recliner core shaft need to be welded on the seat frame to keep the recliners on both sides synchronized.

[0003] The existing seat adjustment structure has the following defects:

[0004] This seat adjustment structure will make it difficult to keep the angle adjuster spindles on both sides unlocked synchronously when rotating, resulting in the angle adjustment handle being unable to return to the initial position after actuation, making the front manual seat back unstable and causing slight shaking. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, an object of the present invention is to provide a seat adjustment structure capable of preventing a slight shaking of a seat back after adjusting the angle of the seat back.

[0006] The purpose of the present invention is achieved by the following technical solutions:

[0007] A seat adjustment structure comprises an angle adjustment handle, a linkage shaft, and an angle adjuster installed at both ends of the linkage shaft, the angle adjustment handle is fixedly connected to the linkage shaft, the linkage shaft is fixedly connected to the axis of the angle adjuster, the seat adjustment structure also comprises a vortex spring fixing plate, an angle adjustment vortex spring, a torsion bar spring and a limit plate, the vortex spring fixing plate is installed on the linkage shaft, the limit plate is fixedly connected to the linkage shaft, the two ends of the angle adjustment vortex spring are respectively buckled with the angle adjustment handle and the vortex spring fixing plate, and the two ends of the torsion bar spring are respectively buckled with the vortex spring fixing plate and the limit plate.

[0008] Furthermore, the limiting plate is welded and fixed to the linkage shaft.

[0009] Furthermore, the torsion bar spring and the limiting plate are matched without clearance.

[0010] Furthermore, the vortex spring fixing plate is provided with a fixing protrusion, and the angle-adjustable vortex spring and the torsion bar spring are buckled on one side of the fixing protrusion.

[0011] Furthermore, an end portion of the limiting piece is located on the other side of the fixing protrusion.

[0012] Furthermore, the torsion bar spring is sleeved on the linkage shaft.

[0013] Furthermore, the torsion bar spring is located inside the angle-adjusting vortex spring.

[0014] Furthermore, the limiting plate is located between the torsion bar spring and the angle adjuster.

[0015] Compared with the prior art, the seat adjustment structure of the present invention also includes a vortex spring fixing plate, an angle adjustment vortex spring, a torsion bar spring and a limit plate. The vortex spring fixing plate is installed on the linkage shaft, the limit plate is fixedly connected to the linkage shaft, the two ends of the angle adjustment vortex spring are respectively snapped with the angle adjustment handle and the vortex spring fixing plate, and the two ends of the torsion bar spring are respectively snapped with the vortex spring fixing plate and the limit plate. Through the torsion bar spring and the limit plate, slight shaking of the seat back can be effectively prevented after the seat back angle is adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of the seat adjustment structure of the present invention;

[0017] Figure 2 for Figure 1 An enlarged view of the seat adjustment structure A;

[0018] Figure 3 for Figure 1 A schematic diagram of the internal structure of a seat adjustment structure;

[0019] Figure 4 for Figure 1 Schematic diagram of the partial structure of the seat adjustment structure.

[0020] In the figure: 100, seat adjustment structure; 10, angle adjustment handle; 11, baffle; 20, linkage shaft; 30, vortex spring fixing plate; 32, fixing protrusion; 40, angle adjustment vortex spring; 50, torsion bar spring; 60, limit plate; 70, angle adjuster. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] See also Figures 1 to 4 The seat adjustment structure 100 of the present invention includes two angle adjustment handles 10, a linkage shaft 20, a vortex spring fixing plate 30, an angle adjustment vortex spring 40, a torsion bar spring 50, a limit plate 60 and two angle adjusters 70.

[0025] Each angle adjustment handle 10 includes a baffle 11. The baffle 11 is provided with a buckle groove. The spiral spring fixing plate 30 includes a fixing protrusion 32, and one side of the fixing protrusion 32 is provided with two buckle grooves.

[0026] When assembling the seat adjustment structure 100, an angle adjustment handle 10 is welded and fixed to each end of the linkage shaft 20. The recliner 70 is installed at the end of the linkage shaft 20. The linkage shaft 20 and the core shaft of the recliner 70 are welded and fixed. The vortex spring fixing plate 30 is installed at the end of the linkage shaft 20, and the limiting plate 60 is welded and fixed to the linkage shaft 20 and one end is located on the other side of the fixed protrusion 32. The torsion bar spring 50 is sleeved on the linkage shaft 20 and the two ends are respectively buckled with the buckle grooves of the limiting plate 60 and the fixed protrusion 32. The torsion bar spring 50 and the limiting plate 60 are matched without clearance. The two ends of the angle adjustment vortex spring 40 are respectively buckled with the buckle groove of the baffle 11 and the other buckle groove of the fixed protrusion 32. At this time, the limiting plate 60 is located between the recliner 70 and the torsion bar spring 50. The torsion bar spring 50 is located in the angle adjustment vortex spring 40.

[0027] When using the seat adjustment structure 100, the passenger adjusts the angle adjustment handle 10 to rotate the linkage shaft 20, thereby unlocking the angle adjuster 70. Since the two angle adjusters 70 are fixedly installed at both ends of the linkage shaft 20, when the linkage shaft 20 rotates, the two angle adjusters 70 are unlocked synchronously, so that the seat back angle can be adjusted. When the angle adjustment handle 10 is adjusted, the blocking piece 11 rotates with the angle adjustment handle 10, causing the angle adjustment spiral spring 40 to deform. And when the linkage shaft 20 rotates, the limiting piece 60 rotates with the linkage shaft 20 and causes the torsion bar spring 50 to deform. When the seat back angle is adjusted to a suitable position, the passenger releases his hand, and due to the existence of the limiting piece 60 and the torsion bar spring 50, the seat back will not shake.

[0028] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims

1. A seat adjustment structure, comprising an angle adjustment handle, a linkage shaft, and an angle adjuster installed at both ends of the linkage shaft, wherein the angle adjustment handle is fixedly connected to the linkage shaft, and the linkage shaft is fixedly connected to the axis of the angle adjuster, characterized in that: The seat adjustment structure also includes a vortex spring fixing plate, an angle adjustment vortex spring, a torsion bar spring and a limit plate, wherein the vortex spring fixing plate is installed on the linkage shaft, the limit plate is fixedly connected to the linkage shaft, the two ends of the angle adjustment vortex spring are respectively buckled with the angle adjustment handle and the vortex spring fixing plate, and the two ends of the torsion bar spring are respectively buckled with the vortex spring fixing plate and the limit plate; The limiting piece is welded and fixed to the linkage shaft; There is no clearance between the torsion bar spring and the limiting plate; The vortex spring fixing plate is provided with a fixing protrusion, and the angle-adjusting vortex spring and the torsion bar spring are buckled on one side of the fixing protrusion; The end of the limiting piece is located on the other side of the fixing protrusion; The torsion bar spring is sleeved on the linkage shaft; The torsion bar spring is located inside the angle-adjusting vortex spring; The limiting plate is located between the torsion bar spring and the angle adjuster.

Images