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Seat back height adjusting device

A technology for height adjustment devices and chair backs, which is applied to chairs, stools, and other seating furniture. It can solve problems such as the jagged adjustment structure is easy to get stuck, the height cannot be adjusted, and the backrest is inconvenient to place. It achieves light weight, Simple structure, not easy to deform and misplace

Active Publication Date: 2013-12-18
ANJI SHENGXIN OFFICE FURNITURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the device is simple to operate, the number of components is not reduced. The seat back connector sleeved on the seat connector and a comfortable backrest need to be placed on the seat connector. The parts are large in size and unattractive in shape. It is inconvenient to place the backrest; at the same time, the sawtooth adjustment structure is easy to get stuck, and the height adjustment function cannot be used for a long time after it is put into use. The service life is short, and this popular structure is not suitable for the structure of modern office seats. , less suitable chairs, single function

Method used

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  • Seat back height adjusting device
  • Seat back height adjusting device
  • Seat back height adjusting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] as attached figure 1 As shown in -5, a chair back height adjustment device includes two support rods 1 fixedly connected to the seat seat and a chair back frame 2 arranged on the support rods 1; the chair back frame 2 communicates with the The support rod 1 is connected; the adjustment assembly includes an adjustment box 3 and a sleeve 4 fixed on both sides of the adjustment box 3; the sleeve 4 is sleeved on the support rod 1; the two support rods 1 A number of height selection jacks 11 are symmetrically arranged on the opposite surface; fastening inserts 31 cooperating with the height selection jacks 11 are pierced on both sides of the adjustment box 3; The adjustment button 32 at the bottom of the box 3.

[0044] The clamping inserts 31 are two that are arranged on both sides of the adjustment box 3; the clamping inserts 31 are provided with pull-back holes 311; The pulling hole 311 pulls back the pulling back inserting strip 321 of the clamping inserting strip 31 ....

Embodiment 2

[0052] as attached figure 1 As shown in -6, the difference from the first embodiment is that the height selection jack 11 is a straight hole, and the support rod 1 is provided with a reinforcing rib 12; the inner wall of the sleeve 4 corresponds to the reinforcing rib 12 Rib grooves 41 are provided. The reinforcing ribs 12 can be set on only one supporting rod 1 , or the reinforcing ribs 12 can be arranged on both supporting rods 1 .

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Abstract

The invention belongs to the field of seats, in particular to a seat back height adjusting device with convenient adjusting, long life and difficult deformation, which comprises two support rods and a seat back frame, wherein the two support rods are fixedly connected on the seat, the seat back frame is arranged on the support rods, and the seat back frame is connected with the support rods through an adjusting component. The adjusting component comprises an adjusting box and sleeves arranged on the two sides of the adjusting box, wherein the sleeves are sleeved on the support rods, a relative surface of the two support rods is symmetrically provided with a plurality of height selecting jacks, the two sides of the adjusting box are penetrated with clamping inserting strips which are matched with the height selecting jacks, and adjusting buttons which pass through the bottom portion of the adjusting box are arranged in the adjusting box. Main function parts of the seat back height adjusting device are integrated in the adjusting box which is connected with the seat back frame, and the seat back height adjusting device can be adjusted just by lightly pressing the adjusting buttons. The seat back height adjusting device is beautiful in whole, simple in structure, extremely convenient to operate and excellent in safety, is suitable for various modern seat backs, and is extremely convenient to mount the seat back.

Description

[0001] A chair back height adjustment device technical field [0002] The invention belongs to the field of seats, and in particular relates to a seat back height adjusting device which is convenient to adjust, has a long service life and is not easily deformed. Background technique [0003] Most of the existing height-adjustable chair backs are regulated by the cooperation of the adjusting rod and the saw-toothed adjusting groove. For example, the "chair back height adjustment device" of application number 201020217501.2 includes a chair back connecting piece and a seat connecting piece. There is an installation jack and a fastening hole connected with the installation jack, a height adjustment piece is inserted between the height selection jack and the installation jack, one end of the height adjustment piece is buckled on the back connector, and the other end is The buckle is set on the seat connecting piece. Although the device is simple to operate, the number of compo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47C7/00A47C7/40
CPCA47C7/402
Inventor 朱强国任凯峰闵忠明张涛军马士飞刘星王竞
Owner ANJI SHENGXIN OFFICE FURNITURE
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