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An Improved Chair Tray

A technology for trays and chairs, applied in chairs, reclining chairs, stools, etc., can solve problems such as the inability to automatically adjust the angle, and achieve the effects of improving stability and safety, improving comfort, and high safety factor

Active Publication Date: 2018-03-23
ZHEJIANG ANJI XIANGTAI FURNITURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that this chair tray can only receive and adjust the angle of the seat cushion, but cannot automatically adjust the angle with different sitting postures

Method used

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  • An Improved Chair Tray
  • An Improved Chair Tray
  • An Improved Chair Tray

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: as Figure 1 to Figure 3 As shown, an improved chair tray includes a base frame 1 fixed at the bottom of the seat, a seat back fixing seat 2 for fixing the chair back, and a lifting rod mounting seat 3 connecting the chair feet, and the seat back fixing seat 2 is hinged on the base frame 1, the base frame 1 is rotatably connected with an adjustment handle 5, and a telescopic rod 6 is arranged between the base frame 1 and the seat back fixing seat 2, and the adjusting handle 5 adjusts the base frame 1 and the seat back fixing seat by controlling the length of the telescopic rod 6 The angle between 2. The elevating rod mounting base 3 and the base frame 1 are of split structure, and the elevating rod mounting base 3 is hinged on the base frame 1 . The elevating rod mounting base 3 is provided with a elevating handle 4 for controlling the elevating of the seat base, and the elevating handle 4 is provided with a plectrum 41, which is used to stir the air spri...

Embodiment 2

[0031]Embodiment 2: as Image 6 As shown, the difference from Embodiment 1 is that the buffer device 9 is an elastic member whose two ends are respectively connected to the movable ends of the base frame 1 and the lifting rod mounting seat 3, and the elastic member is a compression spring.

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PUM

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Abstract

The invention relates to the technical field of chairs, in particular to an improved chair tray. The improved chair tray structurally comprises a base frame, a backrest fixing seat and a lifting rod mounting seat. The backrest fixing seat is hinged to the base frame, an adjustment handle is rotatably connected with the base frame, a lifting handle used for controlling a seat to move up and down is arranged on the lifting rod mounting seat, the lifting rod mounting seat is hinged to the base frame through a hinge shaft, the lifting handle is in linkage connection with the adjustment handle, and the lifting handle and the adjustment handle can both move axially relative to the base frame. When the adjustment handle moves to enable two ends of the lifting handle to be penetratingly positioned in positioning holes, the lifting rod mounting seat and the base frame are kept fixed relatively. The improved chair tray has the advantages that both the seat and the backrest can be adjusted angularly to adapt to different sitting postures of a user, so that chair comfort is improved; in addition, high stability and high safety coefficient are achieved, angular adjustment of the backrest enables fixation of the position of the seat, and accordingly tipping caused by change of the center of gravity of the user due to an overlarge backrest angle can be prevented.

Description

technical field [0001] The invention relates to the technical field of chairs, in particular to an improved chair tray. Background technique [0002] There are various chair structures on the market, among which the seat with adjustable back angle is favored by more and more consumers because of its comfortable posture. This kind of reclining seat mainly relies on the tray to fix the chair base The rotating connection structure and the locking mechanism between the chair back fixing frame and the chair back fixing frame can realize the functions of lying down the seat back and adjusting the inclination angle of the chair back, and a torsion spring is usually installed on the rotating shaft of the chair back fixing frame , the torsion spring generates a certain rebound torque during the rotation, so that the back of the chair can provide a certain amount of back support when the user is lying down, and after the locking mechanism is released, the torsion spring can also allow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47C7/00A47C1/024
CPCA47C1/024A47C7/00
Inventor 杨余东
Owner ZHEJIANG ANJI XIANGTAI FURNITURE