CN103156419B

CN103156419B - Self-adaptation elastic chair composed of steel ring springs and hinge four-bar mechanism

Info

Publication number: CN103156419B
Application number: CN201210464273.2A
Authority: CN
Inventors: 张东赋
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-16
Filing date: 2012-11-16
Publication date: 2015-07-08
Anticipated expiration: 2032-11-16
Also published as: CN103156419A

Abstract

The invention discloses a self-adaptation elastic chair composed of steel ring springs and a hinge four-bar mechanism. A chair seat frame comprises a seat frame, a back frame and handrails. The seat frame, the back frame and the handrails are supported on the two steel ring springs. The hinge four-bar mechanism in a mechanical principle is formed by connection of the chair seat frame, the back frame, the handrails and connecting bars through four hinges. When the center of mass of a human body on the chair is displaced or a sitting position of the human body is changed, the springs deform, the hinge four-bar mechanism deforms, so that self-adaptation elastic floating of the seat frame is generated, a self-adaptation automatic inclined angle of the back frame is generated, and the chair is called as the self-adaptation elastic seat. The main body structure of an existing chair is rigid. The self-adaptation elastic chair creates a pioneer for the chair in an elastic main body structure. The back frame inclined angle of the existing chair needs to be manually adjusted. The self-adaptation elastic chair creates a pioneer of self-adaptation automatic adjustment of the back frame inclined angle. People sitting on the self-adaptation elastic chair feel quite soft, comfortable and convenient. The self-adaptation elastic chair is widely applicable to living at home, relaxation, working and studying.

Description

The self adaptation elastic chair that a kind of steel loop spring and four-bar linkage form

Art

The present invention relates to widely used chair in a kind of people's daily life, it is a kind of household leisure tools, is also a kind of office accommodation and schooling apparatus.

Background technology

Chair is widely used leisure, office and schooling apparatus in people's daily life.Analyze the agent structure of current chair, it can be divided into backrest, seat, foot rest three part, be fixing being rigidly connected between this three part of current chair, and this is current chair softness, reason comfortable not.The chair that some backrest angles of inclination are variable at present needs manual adjustments to change angle of inclination, and this is convenient not.

Summary of the invention

In order to improve flexibility and the comfortableness of chair, the invention provides a solution, at the seat of chair to install a firm ring spring between upper part and foot rest, being fixedly rigidly connected at present between them being changed into elasticity and connects.In theory of mechanics, have a kind of alleged four-bar linkage, when wherein arbitrary bar is subjected to displacement, other three bar can corresponding displacement.We are by the backrest of chair, seat, handrail, separately add a connecting rod, are designed to hinge four-bar structure alleged in theory of mechanics.When the barycenter being sitting in the people on chair is subjected to displacement or the sitting posture of people changes, this four-bar linkage can adapt to change in shape occurs automatically, is called adaptive motion.The result of such design is when the barycenter being sitting in the people on chair is subjected to displacement or the sitting posture of people changes, spring deforms, four-bar linkage deforms, can self-adapting float be there is in seat, self adaptation angle of inclination can be there is in backrest, because the seat of chair is be bearing on steel loop spring with upper part (comprising seat, backrest, handrail, connecting rod), thus achieve adaptive seat elastic floating and adaptive backrest automatic inclination angle, be referred to as self adaptation elastic chair.

The invention has the beneficial effects as follows, the agent structure of existing chair is all rigidity, is referred to as rigid body structure chair, and the present invention is then that to have started a kind of agent structure be flexible, is referred to as the beginning of elastic body structure chair.Existing some can change the chair at backrest angle of inclination, all need manual adjustments to change backrest angle of inclination, the present invention starts the beginning that a kind of self adaptation regulates backrest angle of inclination automatically.When people are sitting on this chair, seat has adaptive elastic floating, and backrest has adaptive angle wing drop, and people can feel very soft, very comfortable, very convenient.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the present invention is further described

Fig. 1 is structure diagram of the present invention

1. armrests 2. chair backrest 3. chair seat 4. connecting rod 5. steel loop spring 6. chair foot rests in figure

In FIG, armrests (1) is fixedly connected with the upper installation foot of steel loop spring (5), chair foot rest (6) is fixedly connected with the lower installation foot of steel loop spring (5), steel loop spring (5) is formed around a circle with steel wire, this circle is the elastomer of spring, and such connected mode makes the seat of chair all be in elastic bearing with upper part (comprising armrests (1), chair backrest (2), chair seat (3), connecting rod (4)).By four chain connections between armrests (1), chair backrest (2), chair seat (3), connecting rod (4), form four-bar linkage alleged in theory of mechanics thus.

Each self adaptation elastic chair has two steel loop springs, is arranged on the left and right both sides of chair respectively, and shown in Fig. 1 is the steel loop spring shape on the chair left side and the connected mode with four-bar linkage thereof, identical on the right of chair.

Claims

1. the self adaptation elastic chair that forms of a steel loop spring and four-bar linkage, by armrests (1), chair backrest (2), chair seat (3), connecting rod (4), steel loop spring (5), chair foot rest (6) is formed, armrests (1) is fixedly connected with the upper installation foot of steel loop spring (5), chair foot rest (6) is fixedly connected with the lower installation foot of steel loop spring (5), steel loop spring (5) is formed around a circle by steel wire, armrests (1), chair backrest (2), chair seat (3), by four chain connections between connecting rod (4), form four-bar linkage alleged in theory of mechanics thus.

2. self adaptation elastic chair according to claim 1, is characterized in that: each chair has two steel loop springs, is arranged on the left and right both sides of chair respectively.