Foldable chair support

A chair support frame and support frame technology, applied in the field of folding chair support frames, can solve the problems that the connecting piece is easy to pinch the human body, the support frame loses its center of gravity and falls, and achieves the effect of stabilizing the opened state and prolonging the service life

Inactive Publication Date: 2004-06-02
邓鉴荣
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this kind of folding chair support frame is: when it is opened for use, if force is applied to the back of the chair surface, it is easy to make the front of the chair tilt up, the whole support frame loses its center of gravity and falls, and the connecting piece is easy to pinch. Hurt the body

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Foldable chair support
  • Foldable chair support
  • Foldable chair support

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 (Fig. 2~ Figure 7 )

[0029] The structure of the support frame on the left and right sides of this example is: the front leg rod 1 and the rear leg rod 2 are hingedly connected with the chair surface support rod 3 respectively, and the oblique front leg rod 1 is backward from its hinge with the chair surface support rod 3 The top extends to form a back bar 5 , and the upper ends of the telescopic bar bodies 2 a and 2 b on the top of the rear leg bar 2 are hinged to the back bar 5 .

[0030] See image 3 In this example, a locking device 8 is provided between the inner tube 2b and the outer tube 2a of the telescopic rod body. When the support frame is stretched and the outer sleeve and the inner tube are retracted to the closed position, the elastic contact springs into the locking hole to lock the outer sleeve and the inner tube to each other, making the expanded support frame more stable. When it needs to be folded, Press the elastic button to disenga...

Embodiment 2

[0033] Example 2 ( Figure 8 , Figure 9 )

[0034] The structure of the support frames on the left and right sides of this example is the same as that of Embodiment 1, the difference is that the horizontal support components arranged between the left and right sides of the support frames are non-folding structures: hard Chair surface 10, hard chair surface 8 are not only the chair surface, but also the lateral support member, and cross bar is respectively fixed with cross bar to form lateral support member 6,7,9 between the backrest bar of both sides and front and rear leg bar.

[0035] The difference from Example 1 is that when folding in this example, only the support rods of the chair surface can be folded upwards and backwards so that the front and rear leg rods are moved closer together, and the support frames on the left and right sides cannot be moved closer to the middle

Embodiment 3

[0036] Embodiment 3 ( Figure 10 , 11 )

[0037] The structure of the support frame on the left and right sides of this example is: the chair surface support rod 3 is hingedly connected with the front and rear leg rods respectively, and the lower end of the backrest rod 5 is hinged with the position between the seat surface support rod 3 and the hinge point of the front and rear leg rods. , the upper end of the telescopic rod body on the upper part of the rear leg rod 2 is hinged to the backrest rod 5 and the rear end of the armrest rod 11, and the upper end of the front leg rod 1 is hinged to the front part of the armrest rod 11 from the hinge of the front leg rod 1 and the chair support rod 3. connect.

[0038] Horizontal supporting parts 7, 6 are arranged between the supporting frames on both sides, and its structure is the same as that of Embodiment 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The support framework for foldable chair includes front legs and back legs symmetrically set on two sides, chair top supporting rods, back rod and transversely support parts set between the side support frame comprising the front legs, the back legs, the chair top supporting rods and the back rod. It features the upper part of each back leg above the hinge to the chair top supporting rod being telescopic rod comprising inner tube and outer sleeve, and the hinging between the upper part of the telescopic rod and the upper part of the back rod or front leg. The present invention has stable opened state, no damage on body and long service life.

Description

technical field [0001] The invention belongs to a folding chair supporting frame with a backrest. Background technique [0002] The main structure of existing backrest type folding chair bracing frame is (referring to figure 1 ): There are two oblique front leg rods (1) and two rear leg rods (2). Hinge connection, the rear end is hingedly connected with the rear leg bar, and the two ends of the connecting piece (4) are respectively hingedly connected with the front leg bar and the rear leg bar above the support bar of the chair surface. The middle part of the leg bar, when folding, the rear leg bar turns downwards along the hinge point of the hinge piece and the seat support bar and the front leg bar to move closer to the front leg bar. The disadvantage of this kind of folding chair support frame is: when it is opened for use, if force is applied to the back of the chair surface, it is easy to make the front of the chair tilt up, the whole support frame loses its center of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A47C4/00
Inventor 邓鉴荣
Owner 邓鉴荣
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap