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Mechanism used for adjusting chair back curve degree

A curved and adjustable technology, applied to chairs, other seating furniture, stools, etc., can solve the problems of inability to adjust the local curvature of the back of the chair, inability to perform multi-dimensional flexible adjustments, and expensive prices, and achieve good practical value , Improve labor efficiency, reduce the effect of harm to the human body

Inactive Publication Date: 2013-07-24
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Only the overall adjustment of the seat back can be realized, but the local curvature adjustment on the seat back cannot be realized, that is, multi-dimensional flexible adjustment cannot be performed;
[0005] 2. Some foreign similar products use many sensors, which are very costly and expensive

Method used

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  • Mechanism used for adjusting chair back curve degree
  • Mechanism used for adjusting chair back curve degree
  • Mechanism used for adjusting chair back curve degree

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] Such as figure 1 shown. A mechanism for adjusting the curvature of the back of a seat, including a seat back frame 1, vertical slide grooves 2 are respectively arranged on the inner walls of the two sides of the seat back frame 1, and horizontal sliding grooves are connected between the two sides of the seat back frame 1 The supporting beam 15, the upper bevel gear screw rod 11 is vertically slidably installed on the supporting beam 15 near the two ends, the upper part of the upper bevel gear screw rod 11 is set as a threaded section, the lower part is set as a smooth rod and the lower part is slidably installed on the supporting beam 15 A horizontal bevel gear shaft 12 is installed between the two sides of the frame of the chair back frame 15 below the support beam, and a horizontal bevel gear 14 is installed on both sides of the horizontal bevel gear shaft 12 in an interference fit near the shaft end. The bottom ends of the screw rods 11 pass through the support beam...

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Abstract

The invention discloses a mechanism used for adjusting chair back curve degree. The mechanism comprises a chair back frame, a supporting rack, a double-reversed-thread-pair screw, two sets of isosceles triangle curve supporting mechanisms, an arc-shaped roof plate, two upper bevel gear screws, a horizontal bevel gear shaft, two upper bevel gears, two horizontal bevel gears, four sets of spring patches, and the like. The horizontal bevel gear shaft rotates, and drives the roof plate to move up and down, such that vertical chair back curve adjustment is realized. The double-reversed-thread-pair screw rotates, and drives the roof plate to move front and back, such that horizontal chair back curve adjustment is realized. When the roof plate is stressed, the spring patches deform, such that the roof plate is provided with certain flexibility. The mechanism provided by the invention satisfies requirements of ergonomics, and assists in reducing the harm caused by sedentariness to human bodies.

Description

technical field [0001] The invention relates to the field of seat adjustment mechanisms, in particular to a mechanism capable of adjusting the curvature of the seat back. Background technique [0002] In order to meet the different needs of various groups of people, in recent years, the seat has been improved and developed very rapidly, and some seats have been designed with the concept of ergonomics to a certain extent, but they all have certain limitations. It is only suitable for specific use occasions, and most of the seat products on the market currently have a fixed shape of the seat back, ignoring the elements of health. For example, massage chairs are only suitable for middle-aged and elderly people, and the back of the chair is not adjustable; another example is the Multi-Layer bionic seat used in the new generation of Dongfeng Nissan Teana. The hardness and shape of the seat cushion adopt human bionics The design maximizes the body contact area and force-bearing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47C7/40A47C7/00
Inventor 张利刘征宇郁俊泉秦海春陈思睿张帅
Owner HEFEI UNIV OF TECH
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