KR200295381Y1 - A chair of controling angle of inclination - Google Patents

Abstract

The present invention relates to a chair capable of adjusting the inclination, conventionally, a chair capable of adjusting the inclination angle of the backrest, or a chair capable of separately adjusting the inclination angle of the backrest and the seat plate is provided, and the inclination angle of the backrest and the seat plate is provided. At the same time, there are rocking chairs whose arcs touch the bottom of the chair's legs, but these rocking chairs could not be used as passenger chairs in offices or vehicles, except for rest. The chair that adjusts the angle of inclination of the chair separately does not fit well with the angle of inclination of the chair while sitting, and in some cases, the waist is stretched and the legs are bent down. In the inclined holding means that the backrest and the seat plate can be kept inclined at a predetermined angle at the same time It is provided with a leg support means that can put the legs on the front end of the seat plate, to improve the comfort by applying a uniform load on the backrest and the seat plate, legs in a straight line with the seat plate in the inclined backrest and seat plate state By spreading the supporting plate to support the legs, the legs are bent to prevent strain on the waist, it is a useful design to relax in a more stable, comfortable posture.

Description

Tilt-Adjustable Chair {A CHAIR OF CONTROLING ANGLE OF INCLINATION}

The present invention relates to a device that can adjust the angle of inclination of the chair, and more particularly, to maximize the comfort by uniformly distributing the load of the body to the backrest and the seat plate while maintaining the sitting posture when you want to rest in the chair The present invention relates to a chair capable of adjusting tilt.

Generally, the chair that can adjust the inclination angle is provided with a chair that can adjust only the inclination angle of the backrest, or a chair that can separately adjust the inclination angle of the backrest and the seat plate, and simultaneously adjusts the inclination angle of the backrest and the seat plate. The chair had a rocking chair in the shape of an arc that touched the bottom of the chair's leg, but the rocking chair could not be used as a passenger chair because it was mounted on an office or a vehicle other than for rest. Separately, the chair has a problem in that it is not suitable to take a rest, such as the waist portion does not fit well with the angle of inclination of the chair while sitting, and in some cases the waist is extended and the legs are bent down.

Especially in the case of office workers who spend a long time in the chair, keeping the back of the chair back and sitting on the seat and keeping the legs straight in line and high will help to recover from fatigue and put the legs on the desk. there is a problem.

The object of the present invention devised in view of the above problems is to incline the backrest and the seat of the chair at the same time as the angle of sitting, and to keep the seat and the seat inclined so that the seated person can rest in a stable position. will be.

Another object of the present invention is to improve the fatigue recovery by providing a leg rest means that can put the legs of the seated in the inclined backrest and seat plate.

1 is a side view of an embodiment of the present invention applied to a rotary chair.

Figure 2 is an enlarged view of the main portion of the inclination holding means of Figure 1;

3 is a cross-sectional view of the cylinder of FIG.

4 is an enlarged view of the legrest means of FIG.

Figure 5 is a side view of the chair tilted by an embodiment of the present invention.

Figure 6 is a side view of an embodiment of the present invention applied to a stationary chair.

Figure 7 is a side view of a state in which another embodiment of the present invention is applied to a swivel chair.

8 is an exploded perspective view of the inclination holding means of FIG.

Figure 9 is a side view of the chair tilted by another embodiment of the present invention.

10 is a side view of a state in which another embodiment of the present invention is applied to a stationary chair.

<Description of the symbols for the main parts of the drawings>

One ; chair

2 ; Backrest 3; Seat

4 ; Armrest 5; Chair support

5a; Hinge portion 5b; crossbar

6; Swivel chair legs 7; Lifting control

8 ; Stationary chair legs

10; Warp

11; Cylinder 12; Cylinder rod

13; Piston 14; spring

15,16; Oil or gas transportation line

17; Operation button

20; Legrest

21; First base plate 21a; Hinge

21b, 22b; Cushion pad

22; Second support plate 22a; Anti-rotation part

23; Intermediate connector 23a; Anti-rotation part

24; Cylinder 25; Cylinder rod

26; Operating buttons 27,28; Oil or gas transportation line

30; Warp

31; Brake drum 32; Pinion gear

33; Center of rotation 34; Rack gear

34a; Stopper 35; brake

36; Brake lever 37; Brake spring

38; Brake handle 39; Return spring

The present invention for achieving the above object is a chair having a backrest, a seat plate interlocked with the backrest, and a backrest and a seat plate hanger, a chair support having a hinge portion which is a rotation center with respect to the backrest and the seat plate; A backrest and seat plate hanger secured to a seat plate or backrest having a hinge portion connected to the hinge portion of the chair support so as to allow the backrest and the seat plate to rotate together; And inclined holding means installed between the chair support and the seat plate to keep the backrest and the seat plate fixed at an rotated angle.

One embodiment of the inclined holding means is a cylinder in which one end of the rod is hinged to the upper surface of the chair support and the other end of the rod is hinged to the lower surface of the seat plate, and the cylinder is mounted on the cylinder rod to reciprocate the inside of the cylinder. A spring is installed on one side of the piston, and oil or gas is filled in the cylinder, and an oil or gas traffic line is installed to supply or discharge oil or gas to the left and right pistons of the cylinder. It is preferable.

In addition, another embodiment of the inclination holding means is a brake drum and pinion gear is installed on the coaxial upper surface of the chair support, a rack gear engaged with the pinion gear on the lower surface of the seat plate, and a brake for holding the brake drum; A brake spring installed at a lower side of a chair support and a brake spring for engaging and separating the brake with the brake drum and a brake spring for pressing the brake onto the brake drum, and being connected to the rear end of the rack gear. It is preferable that the backrest and the seat plate consist of a return spring for returning to the original home position.

On the other hand, the front end of the seat plate is composed of a first support plate hinged to the lower end of the seat plate, a second support plate rotated with respect to the first support plate, and the intermediate connector connecting the first support plate and the second support plate, One end hinged to the seat plate in the first support plate is a hinge portion is bent, one end of the intermediate connector is coupled to the other end of the first support plate is formed with a rotation preventing extension, the second pedestal coupled to the other end of the intermediate connector At one end of the anti-rotation portion is preferably formed is further provided with a leg rest means. The support plate may be utilized as the first support plate only if necessary.

In this case, the means for driving the leg support means is a cylinder of which one end of the rod is hinged to the lower surface of the seat plate and the other end of the rod is hinged to the bent portion of the first support plate, and connected to the cylinder by an oil or gas traffic line It is preferable that the operation button is configured to be installed.

Hereinafter, preferred embodiments of the present invention as described above will be described in more detail based on the accompanying drawings.

Figure 1 shows an example in which the inclination maintaining means according to an embodiment of the present invention is applied to the rotatable chair.

The backrest 2 and the seat plate 3 of the chair 1 are connected to the armrest 4, and the backrest and the seat plate hanger are provided at predetermined portions of the armrest 4, and the chair rest 5 is hinged there. It is fixed by (5a), and the rotary leg 6 supports the chair support 5 so that lifting and lowering is possible. One side of the rotary leg (6) is provided with a lifting control (7).

2, one end of the cylinder rod 12 is hinged to the upper surface of the chair support 5, and the other end of the cylinder rod 12 is hinged to the lower surface of the seat plate 3, as shown in FIG. As the fixed cylinder 11, the configuration of such a cylinder, as shown in Figure 3, one side of the piston 13 around the piston 13 mounted on the cylinder rod 12 reciprocating the inside of the cylinder 11 The spring 14 is provided, and the oil or gas is filled in the cylinder 11. Reference numeral 13a denotes an O-ring or a V-packing.

In addition, oil or gas traffic lines 15 and 16 are connected to the operation button 17 to allow oil or gas to communicate with each other on both sides of the piston 13 of the cylinder 11.

4 shows the configuration of the leg rest means 20 which can put the leg of the seated person in a state in which the backrest 2 and the seat plate 3 of the chair are inclined, and hinged to the lower surface of the front end of the seat plate 3. The first supporting plate 21, the second supporting plate 22 rotated with respect to the first supporting plate 21, and the intermediate connector 23 connecting the first supporting plate 21 and the second supporting plate 22. Consists of.

One end that is hinged to the seat plate 3 in the first support plate 21 has a hinge portion is bent, one end of the intermediate connector 23 coupled to the other end of the first support plate 21 is an anti-rotation part ( 23a) is extended and the rotation preventing portion 22a is also extended to one end of the second pedestal 22 which is coupled to the other end of the intermediate connector 23. Reference numerals 21b and 22b denote cushion pads.

One end of the cylinder rod 25 is fixed to the hinge 3a of the lower surface of the seat plate as a means for driving the leg support means 20, and the other end of the cylinder rod 25 is a hinge portion of the first support plate 21. 21c) is provided with a cylinder 24 hinged to the cylinder 24, the operation button 26 is installed in the cylinder 24 is connected to the oil or gas traffic lines (27, 28).

The operation of the chair to which the embodiment of the inclination holding means configured as described above is applied will be described with reference to FIG. 5.

When the chair is inclined, pressing the operation button 17 allows oil or gas on both sides of the piston 13 to communicate with each other in the cylinder 11 so that the piston 13 is not affected by hydraulic or gas pressure when the piston 13 moves. Therefore, when the body is tilted backward while sitting on the chair, the cylinder rod 12 is drawn out by this folding force, and the piston 13 of the cylinder 11 is pulled out, and the piston 13 moves to overcome the spring force. As shown in FIG. 5, the backrest 2 and the seat plate 3 are inclined rearward about the hinge 5a.

If the backrest 2 and the seat plate 3 of the chair are inclined by the desired inclination angle, the operator releases the button 17 so that oil or gas on both sides of the piston 13 inside the cylinder 11 cannot communicate with each other. When the piston 13 tries to move, hydraulic or gas pressure is generated, so that the piston 13 does not move and the cylinder rod 12 is drawn out, and the backrest 2 and the seat plate 3 have a cylinder rod. The state inclined by (12) is maintained.

When the legrest means 20 is extended while the backrest 2 and the seat plate 3 of the chair are inclined, pressing the operation button 26 may allow oil or gas on both sides of the piston in the cylinder 24 to communicate with each other. Therefore, since the piston is not affected by hydraulic or gas pressure when the piston moves, the piston inside the cylinder is moved to the right by the force of a spring (not shown) installed on the left side, and the cylinder rod 25 connected to the piston is pulled out and thus the first The hinge 21c of the support plate 21 is rotated counterclockwise around the hinge 21a so that the first support plate 21 is in line with the seat plate 3, and the force used to press the operation button 26 is applied. If it is removed, oil or gas on both sides of the piston in the cylinder 24 will not be able to communicate with each other. When the piston is about to move, hydraulic or gas pressure will be generated. Therefore, the piston is stopped by the hydraulic or gas pressure and the cylinder rod ( 25) will remain stopped. In this state, when the intermediate connector 23 is rotated in the clockwise direction, the anti-rotation part 23a of the intermediate connector 23 is supported by the lower surface of the first support plate 21, and then the second support plate 22 is clockwise. Rotating to the second supporting plate 22 is supported by the anti-rotation portion 22a of the lower surface of the intermediate connector 23 while the first supporting plate 21, the intermediate connector 23 and the second supporting plate 22 is in a horizontal state. do.

To fold the leg support means 20, rotate the second support plate 22 and the intermediate connector 23 in the counterclockwise direction and then rotate the first support plate 21 clockwise while pressing the operation button 26. When the piston in the cylinder 24 moves, it is not affected by hydraulic or gas pressure, so the spring (not shown) of the cylinder 24 is compressed by a force that rotates the first support plate 21 in a clockwise direction. (25) is drawn into the cylinder (24), the release of the operation button 26 in this state, the oil or gas on both sides of the piston in the cylinder 24 is not able to communicate with each other, so that the hydraulic or The gas pressure is generated, and the piston of the cylinder is unable to move due to the hydraulic pressure or the gas pressure, so that the state in which the leg support means 20 is folded is maintained. In this case, in order to prevent the second support plate 22 from being folded forward, a spring is installed between the first support plate 21 and the second support plate 22, or the angle of the first support plate 21 is folded. The bottom of the base plate is slightly forward, that is, the top of the base plate in a state of being slightly folded back so that the second base plate 22 is not folded forward in the folded state.

On the other hand, when the operation button 17 is pressed to return the inclined backrest 2 and the seat plate 3 to their original positions, the oil or gas traffic lines 15 and 16 of the inclination holding means 10 are pressed. Since oil or gas communicate with each other to the left and right sides of the piston 13 of the cylinder 11, hydraulic or gas pressure is not applied when the piston 13 moves, so that the spring 14 is elastically supported on one side of the piston 13. The piston 13 moves by the elastic force, and the cylinder rod 12 is pulled in by the piston 13 movement to pull the seat plate 3.

Figure 6 shows an example in which the inclination holding means 10 and the leg rest means 20 according to the present invention is applied to a fixed chair, reference numeral 8 shows a fixed leg. In such a fixed chair, the operation of inclining the backrest 2 and the seat plate 3 and the operation of extending and folding the legrest means 20 are the same as the above-described rotating chair, and thus will be omitted.

7 and 8 show another embodiment of the inclination holding means according to the present invention applied to the rotary chair, another embodiment of the inclination holding means 30 is a brake drum 31 on the upper surface of the chair support (3) And a pinion gear 32 is provided on the coaxial 33, and a rack gear 34 meshing with the pinion gear 32 is provided on the lower surface of the seat plate 3, and holds the brake drum 31. A brake 35 and a brake lever 36 for engaging and separating the brake 35 with the brake drum 31 are rotatably provided on the lower surface of the crosspiece 5b of the chair support 5. Reference numeral 34a denotes a stopper for restricting the rotation range of the rack gear 34.

At the tip of the brake lever 36, a brake spring 37 is provided between the crosspiece 5b of the chair support 5 so that the brake 35 is elastically supported toward the brake drum 31 side. At the rear end of 36, a brake operation knob 38 is provided.

In addition, the rear of the chair support 5 is connected to the rear end of the rack gear 34 to elastically support the rack gear 34 to the rear to return the backrest 2 and the seat plate 3 to their original positions. A spring 39 is provided.

An inclined holding operation of the chair according to another embodiment of the present invention configured as described above will be described with reference to FIG. 9.

To incline the backrest 2 and the seat plate 3, pressing the brake operating knob 38 causes the front end of the brake lever 36 to be lifted and lifted against the elastic force of the brake spring 37 so that the brake 35 is brake drum 31. Are separated). In this state, the backrest 2 of the chair and the seat plate 3 interlocked with the backrest are rolled back so that the rack gear 34 is guided by the pinion gear 32 while the backrest 2 and the seat plate 3 are hinged portions ( It is inclined about 5a). At this time, the stopper 34a is formed in the rack gear 34 to restrict the chair from being inclined excessively.

When the backrest 2 and the seat plate 3 interlocked with the backrest are inclined by a desired inclination, when the brake operating knob 38 is released, the brake lever 36 is rotated by the elastic force of the brake spring 37 and the brake 35 Presses the brake drum 31, and the brake drum 31 is held at the position by the frictional force between the brake 35 and the circumferential surface of the brake drum 31 to regulate the rotation of the pinion gear 32. Then, the rack gear 34 meshed with the pinion gear 32 is no longer rotated to maintain the inclined state of the backrest 2 and the seat plate 3.

To return the seated chair to its original position, press the brake operating knob 38 so that the brake 35 is spaced apart from the brake drum 31, and the rack is pulled by the force of the return spring 39. The gear 34 is guided to the pinion gear 32 and moved to the left in the drawing while the backrest 2 and the seat plate 3 are returned to their proper positions. At this time, the stop position is determined by the stopper 34a on the opposite side.

Since the operation of the legrest means 20 in the chair to which the inclination holding means 30 is applied is the same as described above it will be omitted.

On the other hand, Figure 10 shows a state in which another embodiment of the present invention inclined holding means is applied to the fixed chair, the operation of the inclined holding and folding and folding of the leg support means is the same as the above-described embodiments are omitted.

As described above, the chair capable of adjusting the inclination according to the present invention has an effect of improving the comfort by applying a uniform load to the backrest and the seatboard by maintaining the inclined state while the backrest and the seatboard are inclined at the same angle. .

In addition, the backrest and the seat plate in the inclined state to extend the footrest plate close to the straight line with the seat plate to sit on the chair to extend the legs upwards, there is an advantage to relax in a more comfortable posture.

Claims (5)

In a chair having a backrest, a seat plate interlocked with the backrest, and a backrest and a seatplate hanger, A chair support having a hinge portion which is a center of rotation with respect to the backrest and the seat plate; A backrest and seat plate hanger secured to a backrest or a seat plate having a hinge portion connected to the hinge portion of the chair support so that the backrest and the seat plate can rotate in association with each other; And an inclination holding means installed between the chair support and the seat plate to maintain a fixed state at an angle at which the backrest and the seat plate are rotated. The method of claim 1, The inclination holding means One end of the cylinder rod is a cylinder hinged to the upper surface of the chair support and the other end of the cylinder rod is hinged to the lower surface of the seat plate, the cylinder is mounted on the cylinder rod and one side of the piston around the piston reciprocating inside the cylinder Spring is installed, the cylinder is filled with oil or gas, the oil or gas traffic line is installed to allow the oil or gas in the cylinder to be communicated to both sides of the piston is inclined, characterized in that connected to the operation button Adjustable chair. The method of claim 1, The inclination holding means A brake drum and pinion gear coaxially installed on the upper surface of the chair support, a rack gear installed on the lower surface of the seat plate and engaged with the pinion gear, a brake holding the brake drum, and a lower surface of the chair support horizontal A brake lever for coupling and separating the brake to and from the brake drum, a brake spring installed at the front end of the brake lever to compress the brake to the brake drum, and a rear end of the rack gear connected to the rear end of the rack gear to return the backrest and the seat plate to their original positions. Adjustable tilt chair characterized in that consisting of a return spring to return to. The method according to any one of claims 1 to 3, The front end of the seat plate comprises a first support plate hinged to the lower end of the seat plate, a second support plate rotated with respect to the first support plate, and an intermediate connector connecting the first support plate and the second support plate, One end of the support plate hinged to the seat plate is formed by the hinge portion is bent, one end of the intermediate connector coupled to the other end of the first support plate is formed by the rotation preventing portion is extended, one end of the second pedestal coupled to the other end of the intermediate connector The chair is tiltable adjustable, characterized in that the anti-rotation portion is formed by extending the leg rest means. The method of claim 4, wherein Means for driving the leg support means is a cylinder in which one end of the cylinder rod is fixed to the lower surface of the seat plate and the other end of the cylinder rod is hinged to the hinge portion of the first support plate, oil or gas in the cylinder is both sides of the piston The chair is adjustable tilt characterized in that the traffic line of oil or gas is installed to be connected to the operation button is connected to.