KR100598428B1 - A easy chair at basic a mechanism of revolution by moving on weight center. - Google Patents

Abstract

In particular, the present invention relates to an armchair, and more particularly, to an armchair, in which, when a person is sitting on a chair, the position of the center of gravity of the chair changes according to the tilted direction of the upper body without contacting the hands and feet with the wall or the floor, The present invention relates to an armchair using a center-of-gravity moving and rotating device having a tilting function for resting the user and capable of performing continuous rotation.

The main constitution of the present invention is roughly divided into an upper portion, a central shaft portion and a lower portion of a chair, the upper portion including a seat portion 1 and an under seat portion 3, the central shaft portion including a gas rod 4, A bearing case 5 for accommodating a rotating means of the present invention and a cylinder 9 and a spring fixing shaft 6 and a spherical bearing 7 for controlling the inclination of the seat 1, A spring case 8 accommodating the buffer means of the present invention including a spring 14-1 and a spring bottom plate 8-4 and a spring 8-2 attached to the spring case 8, (8-1), and it is very convenient for the general user as well as the elderly or the patient. Especially, it is possible to provide a convenience for the spinal cord person to easily carry out a change of direction in a sitting state It is an armchair using the center movement rotating device.

Armchair, top, center shaft, bottom, center of gravity movement rotating device, rotating means, buffering means, tilt operation.

Description

A reclining chair using a center-of-gravity moving device. {A simple chair at a mechanism of revolution by moving on a weight center.}

1 is a configuration diagram of an armchair according to the present invention. (Side view, front view)

2 is a plan view and a cross-sectional view of the bearing case 5 of the present invention.

3 is a plan view and a cross-sectional view of the spring fixing shaft 6 of the present invention.

4 is a cross-sectional view of the spring 14 of the present invention.

5 is a sectional view of the gas rod cylinder 9 of the present invention.

6 is a plan view and a sectional view of the spring bottom plate 8-4 of the present invention.

7 is a plan view and a cross-sectional view of the spring case 8 and the spherical bearing 7 of the present invention.

Fig. 8 is a configuration diagram of a central shaft portion and a lower portion of the present invention.

Description of the Related Art

1. Not available. 3. Not supported.

4. Gas rod. 5. Bearing case.

6. Spring retaining shaft. 7. Spherical bearing.

8. Spring case. 9. Gas rod cylinder.

10. Ball bearings. 11. Thrust bearings.

12.13. Snap ring. 14. Spring.

The present invention relates to a recliner (hereinafter referred to as "recliner according to the present invention") using a center-of-gravity moving and rotating device and is disclosed in Utility Model Registration No. 131987 (registered on September 22, 1998) (Hereinafter referred to as " conventional design ") as a matter related to the invention of the Utility Model Registration No. 131987

The first aspect of the difference between the conventional design and the first embodiment of the present invention is that the conventional design can be used only for resting chairs, so that the present invention can be easily applied to existing conventional chairs. Second, As an invention realizing the reduction of parts cost and production cost,

It is an armchair that can change the position of the center of gravity of the chair according to the inclination of the body while the person is sitting on the chair, and can change the direction of the body to the desired position and can continuously rotate.

As an example of the conventional reclining chair, the lower surface of the chair is formed in an arcuate shape so that it can swing only back and forth. Therefore, when the user wants to change the position of the body in the left and right direction, the armchair itself must be turned to the left and right, which is inconvenient for the general user, especially for the elderly and patients. The former design was designed to solve the above problems, but in the process of commercialization, the production cost was excessive and the product range was not out of the range of the reclining chair.

Accordingly, the present invention has been made in view of the disadvantages of the above-mentioned conventional reclining chair and is designed to be easily applicable to general chairs including office use, so that general users, especially spinal patients or elderly people with uncomfortable body, It is also possible to turn the chair to the left or right by turning the chair to the left or right and changing the direction without help of the other person. Also, the students who are studying and the office workers who are sitting in the chair for a long time, rotate or tilt the chair from time to time, And an object of the present invention is to provide an armchair using a center-of-gravity moving and rotating apparatus having a function of solving the problem.

In order to achieve the above object, the reclining chair according to the present invention is generally divided into an upper portion, a central axis portion and a lower portion of the chair, the upper portion being composed of the seat portion 1 and the seat support 3, A gas rod cylinder 9 for receiving and supporting the gas rod 4 and a gas rod cylinder 9 for supporting and supporting the gas rod cylinder 1; And a bearing case 5 for accommodating the ball bearing 10 and the thrust bearing 11. The ball bearing 10 and the thrust bearing 11 are fixed to the outer circumference of the gas rod cylinder 9, And a lower portion is formed integrally with a spring fixing shaft 6, a spring 14 and a spring bottom plate 8-4 which are screwed to the bearing case 5, (8-4) are integrally mounted and accommodated, and the spring fixing shaft (6) A tilting means formed of the spherical bearing 7 for guiding and supporting the upper and lower operation and tilting operation through the center of the spherical bearing 7 fixed to the upper end of the flange case 8, And a supporting means composed of a chair foot 8-1 with a wheel 8-2 integrally attached to a spring case 8 serving as a main body. A lock lever 3-2 for restricting the inclination of the seat 1 and an elasticity adjusting device for adjusting the elasticity of the seat 1 when the seat 1 is tilted backward The gas rod 4-1 and the valve button 4-3 are provided in the gas rod 4 and the spring fixing shaft 6 is screwed to the bearing case 5 And the spring case 8 connects the center shaft portion and the lower portion to facilitate disassembly and assembly when the chair is carried, And is also integrally mounted with the chair leg 8-1 with the wheel 8-2 so as to receive the load of the entire chair so as to receive the top plate 6-1, the spring 14 and the spring bottom plate 8-4, .

In order to simply manufacture the reclining chair according to the present invention, the ball bearing 10, the thrust bearing 11, the snap ring 12 (13) and the bearing case 5 of the rotating means and the spring- The gas rod cylinder 9 is attached to the spring fixing plate 6-1 and the gas rod cylinder 9 is passed through the center of the spherical bearing 7 so that the spring- Up / down operation and tilt operation, which are the roles of the controller 6, can be performed. At this time, the gas rod 4 received in the gas rod cylinder 9 is rotated by the rotational force of the seat portion 1 and slides with the inner wall of the gas rod cylinder 9.

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BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described with reference to the accompanying drawings.

2 is a sectional view and a plan view of a bearing case 5 accommodating a rotating means of the present invention, and Fig. 3 is a plan view of a spring seat according to the present invention. Fig. 5 is a sectional view of the gas rod cylinder 9 of the present invention, and Fig. 6 is a sectional view of the gas rod cylinder 9 of the present invention. Fig. 6 is a plan view and a sectional view of the shaft 6 and the spring fixing plate 6-1, 7 is a plan view and a cross-sectional view of the spring case 8 and the spherical bearing 7 of the present invention, and Fig. 8 is a plan view and a sectional view of the chair center 8-4 according to the present invention, Fig. 3 is a structural cross-sectional view of the shaft portion and the lower portion of the chair; Fig.

1, the present invention is characterized in that, in a chair having a safety seat, an in-seat support, a center shaft and a lower portion, regardless of any form such as a general chair or an armchair, a bearing case 5, And a spring case 8 integrally fastened to the lower portion of the chair foot 8-1 with a wheel 8-2 is provided. In this case, a known product is used for the inner lug 1, the inner lug bracket 3 and the gas rod 4, and the gas rod 4 can be replaced by a known screw rod. When the screw rod is used, a known underslung pedestal without the height adjusting lever 3-3 shown in FIG. 1 can be used. Here, a detailed explanation on the use of the above known components is excluded.

8, components and operation principles of the present invention will be described in detail.

1 is fastened by a bolt to a notch retainer 3 and a gas bar 4 is inserted into a notched retainer 3. The gas rod 4 is a main part for arbitrarily adjusting the height of the chair and a valve button 4-3 is provided on the upper end and a valve button 4-3 is provided on the upper portion of the height adjusting lever 3-3 Thereby opening and closing the opening / closing operation. A piston rod 4-1 integrally fastened to the piston accommodated in the gas rod 4 is provided at the lower end of the gas rod 4 and the end of the piston rod 4-1 is fastened to the gas rod cylinder 9 Thereby supporting the gas rod 4. The piston rod 4-1 moves up and down according to the magnitude of the load by the opening and closing operation of the valve button 4-3, but actually the height of the chair is adjusted while the gas rod 4 itself operates up and down. Therefore, the gas rod 4 is inserted into the gas rod cylinder 9 and reciprocates vertically. The ball bearing 10 and the thrust bearing 11 are fastened to the outside of the gas rod cylinder 9 by the snap ring 13 and the rotating means is housed in the bearing case 5, . The bearing case 5, which is the main body of the rotating means, is fastened with a spring fixing shaft 6, which is a lower end portion of the center shaft portion, to facilitate assembly and disassembly of the chair. The spring fixing shaft 6 is integrally fastened to the spring fixing plate 6-1 to serve as a waist for transmitting the load of the entire chair to the buffering means. The tilting operation and the vertical movement of the spring fixing shaft 6 are performed by a spherical bearing 7, and the spherical bearing 7 is integrally fastened to the spring case 8. The spring case 8 accommodates a spring fixing plate 6-1, a spring 14 and a spring bottom plate 8-4 as buffer means of the present invention and is provided with a chair foot 8- 1 are integrally attached to constitute the lower portion of the chair. Here, the spring 14 is provided so as to perform a buffering action on one side or vertically according to the tilting operation and the up-and-down operation of the spring fixing shaft 6.

Therefore, the tilting of the total weight of the chair and the operation of the rotating means make it possible to move the center of gravity of the seat 1 and when the seat moves to the center of gravity as intended by the person sitting on the seat, . In addition, the role of the spring 14 prevents sudden tilting or rotation of the seat portion 1 when the user sits on the chair, and at the same time provides elasticity in the swinging motion.

The inventor of the present invention has found that the self-rotation of the reclining chair according to the present invention during the production of the present invention requires that the person sitting on the chair should change the direction of the body slightly when changing the direction slightly, And explained.

When the user first seated on the chair, the center of gravity is mostly rearward. If you want to change the direction to 90 degrees or less, when you tilt your left or right side, the seat (1) tilts to the left or right The spring fixing shaft 6 is also inclined to the left or right. Then, the back of the seat portion 1 is rotated in a tilting direction by the force that the center of gravity is to be placed in pursuit of the position of the inclined spring fixing shaft 6. That is, the rotation of the retention portion 1 is centered on the spring fixing shaft 6, and the ball bearing 10 and the thrust bearing 11 provided in the bearing case 5 assist rotation thereof. However, a single body tilt does not cause continuous rotation. When you want to perform the rotation continuously, you realize that the person sitting on the chair should slowly turn the upper body in one direction to the left or right. It can be seen that the position of the center of gravity which has been formed previously is continuously moved only when the center of gravity of the backrest (1) is continuously changed by the human body. In this case, Which is opposite to the direction in which the body is whirled. That is, the cause of the rotation is that there is a characteristic that the position of the new center of gravity, which changes from time to time, always tries to flow to the initial center of gravity position.

On the other hand, the locking lever 3-2 is provided on the undersurface support 3 so that when the user sits down and rests on the chair, the backward inclination of the first stage is performed in the buffering means according to the present invention However, since the tilting angle is only about 5 to 10 degrees and the user does not have sufficient resting effect, it is possible to perform the two-step tilting by utilizing the known tilting device installed in the known tilting bracket 3 At this time, the lock lever 3-2 is operated and executed.

As described in detail above, according to the reclining chair according to the present invention, the user can rotate or position the chair in a desired direction according to the tilt of his / her body without touching the floor or the wall, It is very convenient for the elderly and the patient. In particular, the inventor of the present invention has made it possible to easily change the orientation of the vertebrae in the sitting state, which is the initial point of the present invention. In addition, when the user sitting on the chair rests, It increases the feeling of relaxation, so it also provides the effect of reducing the stress. It is easier to commercialize than the previous design, and the production cost is low.

Claims (3)

A chair in which an unsupported pedestal 3 is fastened to an unsupported portion 1 and an upper end of the gas rod 4 is inserted and fixed to the unsupported pedestal 3, The gas rod cylinder 9 is inserted and fastened to the ball bearing ring 10 and the thrust bearing 11 and is fixed by the snap ring 12 and the ball bearing 10 and the thrust A spring fixing shaft 6 is screwed to the bearing case 5 and a spring fixing plate 6-1 is fixed to the lower end of the spring fixing shaft 6, The spring bottom plate 8-4 is attached to the lower end of the spring 14 and the spring bottom plate 8-4 is fixed to the spring case 8-1. The spring bottom plate 8-4, the spring 14, and the spring fixing plate 6-1 are integrally received in the spring case 8, And an outer side of the spherical bearing 7 is fixed to the upper center of the spring case 8 and the spring fixing shaft 6 is passed through the center of the spherical bearing 7, A tilting means composed of a spherical bearing 7 for guiding the spring fixing shaft 6 to tilt as the spring fixing shaft 6 is moved up or down or the tilting of the seat 1 and the spring case 8 And a supporting means for supporting the entire chair by being integrally attached to the outer side of the chair foot 8-1 with a wheel 8-2. The central axis of the chair is inclined according to the inclination of the user's body, And the center of gravity is moved to rotate the secured part (1) when the direction in which the user tilts is continuously changed. A chair in which an unsupported pedestal base (3) is fastened to a pedestal (1) and an upper end of the pedestal (4) is inserted and fixed to the pedestal base (3) The upper end of the spring 14 is attached to the spring fixing plate 6-1 while the cylinder 9 is passed through the center of the spherical bearing 7 and attached to the spring fixing plate 6-1, The spring bottom plate 8-4 and the spring bottom plate 8-4 are mounted inside the spring case 8 so that the spring bottom plate 8-4 and the spring 14 and the spring fixing plate 6-1 And an outer side of the spherical bearing 7 is fixed to an upper center of the spring case 8 and fixed to the center of the spherical bearing 7, As the cylinder 9 is pierced and the gas rod cylinder 9 is operated up and down by the buffer means or the tilt of the seat 1, A tilting means composed of a spherical bearing 7 for controlling the tilting of the cylinder 9 and a chair foot 8-1 with a wheel 8-2 are integrally attached to the outside of the spring case 8, The central axis of the chair is inclined according to the inclination of the body of the user and the center of gravity is shifted when the direction in which the user tilts is continuously changed, So that the gas rod (4) slides and rotates with the inner wall of the gas rod cylinder (9). delete

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