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Chair with footrest

A technology for footrests and chairs, applied to chairs, deck chairs, stools, etc., can solve the problems of not being comfortable, increasing costs, non-conformity, etc., and achieve the effects of stable and reliable operation, simple structure, and small rotation angle

Pending Publication Date: 2020-04-28
HENGLIN HOME FURNISHINGS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1) The center of gravity of the human body and the chair is moved backward, and the chair is easy to tip backward;
[0007] 2) The backrest will bear a large force, so it is necessary to improve the material and structural stability of the backrest, thereby increasing the production cost;
[0008] 3) Correspondingly, the chair mainly provides support to the back of the human body through the backrest, while the sitting back only has a role in fixing the position of the buttocks of the human body, which does not conform to the force of the human body when it is usually lying down, so that the human body The overall body is not in a comfortable state. After lying on the back for a long time, the human body will feel more tired;
[0009] 4) The legs of the human body are still in a bent state and cannot be stretched out, so the human body cannot be fully relaxed
[0012] 1) It does not conform to people's usual habit of lying down and getting up; when lying down, the chair lifts the footrest first and then the back of the chair falls down; when it needs to get up, the chair back rises first and the footrest falls Descending, the movement process is opposite to the usual habitual action of people lying down and getting up;
[0013] 2) The base in the chair is often made of high-strength material parts as the main force-bearing part, and other non-main force-bearing parts often use general-strength material parts in order to reduce costs, but in this application, due to its motion mechanism As a result, in addition to the base, the footrest assembly is also the main force-bearing part; therefore, the footrest assembly also needs a material with higher strength, thereby increasing the cost;
[0014] 3) There are many parts and complex structures for lifting and lowering the footrest assembly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Such as Figure 1-5 Shown, a kind of chair comprises foot 11, fixed seat 12, chair back frame 13, seat frame 14, footrest assembly 15, first linkage frame 16 and second linkage frame 17, wherein, fixed seat 12 and bottom The pin 11 is fixedly connected, and the first linkage frame 16 is fixedly connected or integrally formed with the bottom end of the seat back frame 13 and is rotatably installed on the fixed seat 12; the second linkage frame 17 is fixedly connected with the bottom surface of the seat frame 14 or integrally formed and It is movably installed on the fixed seat 12; the footrest assembly 15 is rotatably installed on the second linkage frame 17 or the seat frame 14, and also includes:

[0057] The first driving mechanism includes a first electric push rod 18, a first linkage rod 19, two sets of left and right first linkage mechanisms 22 and two left and right fourth linkage mechanisms 23, and the first linkage mechanism 22 is installed on a fixed On the se...

Embodiment 2

[0081] The difference between this embodiment and the first embodiment is that the first electric push rod is no longer provided.

[0082] In the embodiment of the present application, an air rod and two left and right springs are provided, wherein the installation method of the air rod is the same as the installation method and installation structure of the first electric push rod in Embodiment 1, and both are rotatably installed on the first electric push rod. On the linkage frame and the fixed seat, the front end of the spring is installed on the fixed seat, and the rear end of the spring is installed on the first connecting rod or the first linkage frame; further preferably, the spring is not in a stretched state;

[0083] It is worth noting that, if the fixed seat is large enough, the rear end of the spring can also be installed on the fixed seat, and the front end of the spring can be installed on the first connecting rod or the first linkage frame; further preferably, th...

Embodiment 3

[0086] Such as Figure 8 and Figure 9 As shown, the difference between the present embodiment and the second embodiment is that the second driving mechanism and the footrest assembly are not provided in the embodiment of the present application.

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PUM

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Abstract

The invention discloses a chair which comprises bottom feet, a fixed seat, a chair back frame, a chair seat frame, a footrest assembly, a first linkage frame and a second linkage frame. The fixed seatis fixedly connected with the bottom feet, and the first linkage frame and the bottom end of the chair back frame are fixedly connected or integrally formed and rotatably mounted on the fixed seat. The second linkage frame and the bottom surface of the chair seat frame are fixedly connected or integrally formed and are movably mounted on the fixed seat. The footrest assembly is rotatably mountedon the second linkage frame or the chair seat frame; the device further comprises a first driving mechanism and a second driving mechanism. The first driving mechanism controls the tipping of the chair back frame and the linkage lifting of the chair seat frame. The second driving mechanism controls the lifting, putting down and linkage stretching and retracting of the footrest assembly, and the first driving mechanism and the second driving mechanism are independent of each other, so that people can adjust the footrest and the chair back frame at will according to own requirements, and the human body can be relaxed to a deeper degree.

Description

technical field [0001] The invention relates to the technical field of furniture, in particular to a chair with a footrest. Background technique [0002] The comfort of the chair is directly related to the quality of people's work and life. More and more companies are researching the seat-back linkage mechanism to realize self-adaptive functions and improve seat comfort. [0003] At present, the seat-back linkage mechanism used in seats on the market has a complex structure, high difficulty in production and processing, resulting in high cost; as the Chinese patent document with the publication number CN104223821B discloses a swivel chair chassis, which is composed of a plurality of connecting rods and brackets. The frame and the base constitute a four-bar linkage mechanism. When the rocker connected to the backrest rotates, the bracket connected to the seat moves upwards and backwards as a whole, and according to the weight of the human body, the reclining force of the bac...

Claims

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Application Information

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IPC IPC(8): A47C7/50A47C1/032A47C1/034
CPCA47C1/03211A47C1/03233A47C1/0342A47C7/5068
Inventor 王江林王郑兴鲍家华
Owner HENGLIN HOME FURNISHINGS CO LTD