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Chair

A technology of chairs and chair seats, which is applied to chairs, deck chairs, household appliances, etc., can solve problems such as difficult to improve the appearance and lack of self-adaptive gravity, and achieve the effects of overcoming discomfort, good comfort, and flexible settings

Inactive Publication Date: 2019-07-26
UE FURNITURE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this linkage chair does not have the effect of self-adaptive gravity of DUPART patent; moreover, the hinge point of the backrest and the armrest is set on the armrest, so the armrest must ensure sufficient strength and support, which makes the armrest must exist, and it is difficult to improve its appearance

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1: first define the reference orientation of each part of the present invention, the present invention is when the chair is installed and used normally, the front of the chair is the front end and the front, and the rear of the chair includes the position of the back of the chair and the seesaw. Rear end, rear.

[0065] The chair of the present embodiment, such as Figure 1 to Figure 17 As shown, it includes a base 1, a bracket 2 for connecting the seat, a rocker 3 for connecting the seat back, and a first connecting rod 5, a second connecting rod 6 and two symmetrically arranged on both sides of the base 1. A crank 4, two cranks 4 symmetrically arranged on both sides of the base 1; 6. The upper part is hinged by the fourth pin shaft 8; the seesaw 3 and the crank 4 are connected as a whole or the two are integrally formed; the first connecting rod 5 and the second connecting rod 6 are both tilted backward, 1. The second connecting rods 5 and 6 are arranged ...

Embodiment 2

[0075] Embodiment 2: In this embodiment, as Figure 18 As shown, the guide avoidance mechanism includes a guide hole 23 and a guide shaft 11, the diameter of the guide hole 23 is larger than the diameter of the guide shaft 11, the guide hole is arranged on the wing plate 19 of the bracket 2, and the corresponding The above-mentioned guide shaft 11 is arranged on the second connecting rod 6 , and the guide shaft 11 passes through the guide hole 23 .

Embodiment 3

[0076] Embodiment 3: This embodiment embodies the subject matter to be protected by the claims of the present invention, and the difference between this embodiment and Embodiments 1 and 2 is that: Figure 19 , 20 , 21, 22, 23, and 24, the first connecting rod 5 is at the front of the base 1, and the second connecting rod 6 is a straight connecting rod; the first connecting rod 5 and the bracket 2 pass through the fifth pin 12 hinged, between the rear of the bracket 2 and the base 1, a chute guide mechanism for lifting and lowering the bracket 2 is provided; the second connecting rod 6 and the chute guide mechanism are located in the rear area of ​​the base; this embodiment The chute guide mechanism is similar to the guide avoidance mechanism mentioned in Embodiment 1, 2, but different from it:

[0077] The chute guiding mechanism described in this embodiment includes a waist groove 27 and a guide shaft 11, the waist groove 27 is arranged on the wing plate 19 of the bracket 2,...

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Abstract

The invention discloses a chair. The chair comprises a base, a warping plate used for connecting a chair back, a bracket used for connecting a seat, and a first connecting rod, a second connecting rodand cranks which are symmetrically arranged on the two sides of the base left and right, the two ends of the cranks are hinged to the upper portions of the first connecting rod and the upper portionof the second connecting rod respectively, and the warping plate and the cranks are connected into a whole; the lower portion of the first connecting rod and the lower portion of the second connectingrod are hinged to the base separately; one of the first connecting rod and the second connecting rod is hinged to the bracket, and a sliding groove guide mechanism performing lifting guiding on the bracket is arranged between the rear portion of the bracket and the base; the warping plate is driven through stress to rotate anticlockwise and moves forwards at the same time, and the front portion and the rear portion of the bracket rise simultaneously. When the chair is applied, a rotating shaft of the chair back is mobile, and reviously, the rotating shaft is fixed to a handrail relative to the ground, in this way, the rotating shaft can be transferred to a base area to make arrangement of the handrail more flexible, and meanwhile the waist-lifting effect can be achieved; in addition, thehypsokinesis angle of the warping plate and the chair back is larger, and the zero gravity effect is achieved.

Description

technical field [0001] The invention relates to the technical field of swivel chairs and office chairs, in particular to a chair. Background technique [0002] In the prior art, there is a linkage device for synchronizing the seat and the back of the chair. When the back of the chair is tilted back, the seat moves. Rod linkage and a lever to synchronize the tilt of the seat frame and back frame. The four-bar connection mechanism only includes two cranks, and the cranks are hinged between the base and the seat frame. The lever has two arms and has a fulcrum on the base. Wherein said one arm is integral with said seatback frame. Instead, the other arm acts on the rear of the seat frame and lifts or pulls the rear up or down depending on the angle and direction of inclination of the seat back. [0003] This approach makes the driving force of the back assembly opposed to the restoring force of the seat frame, so people who are lighter or heavier can easily recline and retur...

Claims

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Application Information

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IPC IPC(8): A47C7/00A47C7/46A47C1/032
CPCA47C1/03255A47C7/00A47C7/004A47C7/006A47C7/462
Inventor 何基蒋小兵
Owner UE FURNITURE CO LTD
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