KR100771416B1 - Assembly of chair seat - Google Patents

Abstract

A chair assembly is provided to perform multi-stage tiling and free tilting by the tilting limiting function, makes its function diversified, and to be used conveniently and comfortably. A chair assembly includes a limit lever(5), an operation tool(62), first, second, third and fourth stopping recesses, an elastic support member(70), a stopper, an arc shaped elongated hole(8,9), a shaft rod(10), a spring support(11), a spring holder(21), a couple of springs(12,13), a shaft rod, a through-hole formed on the operating tool, and first, second, and third inclinations(79,80,81) of the operation tool. The limit lever is shaft-installed on a case. The operation tool is installed at the shaft end of the limit lever. The rear end of the shaft rod(19) is installed on the spring support and the front end protrudes after passing through the spring holder.

Description

Chair assembly {ASSEMBLY OF CHAIR SEAT}

1: A top view of the chair assembly of the present invention.

2 is a plan view of the spring is compressed by the advance of the slider in the present invention

3 is a cross-sectional view of the elastic adjustment means of the present invention.

4 is a block diagram of the lifting means of the present invention.

5: (a) is a top view, (b) is a side view.

6 is a diagram of the present invention, (a) is a sectional view, (b) is a front view.

7 is a noise prevention bushing of the present invention, (a) is a front view, (b) is a sectional view.

8: (a) is a plan view, (b) is a front view, (c) is a side view, (d) is a "A" partial sectional view of (a), and (e) (B) is a partial sectional view of "B", (bar) is a "C" partial sectional view of (A).

9 is a perspective view of the present invention.

10 is a cross-sectional view of the present invention free tilting state.

11 to 13: cross-sectional view of the present invention multi-stage tilting.

Figure 14: A side reference view of the chair assembly of the present invention.

15 is a side view of a state of use of the present invention.

16 is a side view of the tilted state in the present invention.

<Explanation of symbols for main parts of the drawings>

(1)-chair assembly (2)-top case

(3)-lower case (3a)-shaft mounting

(3c)-Indentation groove (4)-Elevation lever

(4a) (5a) (77)-Axle (5)-Limitver

(7)-Elastic Control Lever (8) (9)-Long

(10)-Axle (11)-Support

(12) (13)-Spring (14) (15)-Joint

(16)-Joining Part (17)-Joining Hole

(18)-pin (19)-shaft

(20)-Bushing (20a)-Inserted

(20b)-Extension (20c)-Hanging Part

(21)-spring holder (22) (23)-support

(26)-Extrusion (27) (28) (42) (43)-Slope

(29) (30)-Slider (31) (32)-Joiner

(33) (34) (41)-Joining Groove (35) (36)-Screw

(37)-Screw Rod (38) (39)-Nut

(40)-Moving Body (44) (78)-Public

(45) (46)-Joining Part (47)-Shaft

(48)-First Spur Gears (49)-Second Spur Gears

(50)-Third Spur Gears (51)-Handle

(52)-Knob (53)-Gas Cylinder

(54)-Activation Pin (55)-Rotator

(56)-hole (57)-operating rod

(58)-Bent (59)-Loop

(60)-actuator (61)-pressure part

(62)-actuator (63)-arc

(64)-Soccer (65)-Ground

(66)-First Stop Groove (67)-Second Stop Groove

(68)-third stop groove (69)-fourth stop groove

(70)-Tanji (71)-Stopper

(79)-First Slope (80)-Second Slope

(81)-Third Slope (83)-Frame

(83a)-first protrusion (83b)-second protrusion

(84)-climb (85)-seat

(86)-connection member (L1)-shaft movement section

(L2) to (L4)-separation distance

The present invention relates to a chair assembly in which a seat plate and a back plate are installed, and to achieve multi-stage tilting and free tilting by using a tilting limit function (limit function).

In general, the chair assembly in which the seat plate and the back plate are installed is configured to adjust the height of the seat plate and the inclination of the back plate, respectively, in pursuit of convenience and comfort.

The chair assembly is operated by the opening and closing pins of the gas cylinder with the lifting lever to raise or lower the seat plate to an appropriate height, and to operate the tilting device (tilting device) with the tilting lever to properly adjust the inclination of the back plate.

In addition, the conventional chair assembly pursues the convenience of use by additionally configuring the free tilting function, but can not achieve the multi-stage locking of the desired angle, and the chair falls backward when tilted at the maximum angle when the free tilting function is used. There is a problem that cases often arise and require attention to use.

An object of the present invention is to provide a chair assembly capable of achieving multi-stage tilting and free tilting by a tilting limit function (limit function).

In order to achieve the above object is provided in the upper and lower cases elevating means for elevating the chair assembly, tilting means for adjusting the inclination of the back, tilting limiting means for limiting the inclination of the back in multiple stages, the elastic force of the tilting means Elastic adjustment means for adjusting the, and the lifting lever and the locking lever are respectively installed on both sides of the case, and installed in the case front end to enable multi-stage tilting to achieve free tilting and multi-stage tilting by adjusting the distance to the shaft It is composed of a large operating lever, and the elastic control lever installed on the lifting lever.

The tilting means may include a shaft rod coupled to an arc-shaped hole formed in a lower case, a spring support coupled to the outer circumference of the shaft, a pair of spring coupling portions protruding from both ends of the spring support, and the spring coupling portion. It consists of an axial rod coupled to the support, a support portion for protruding into the case to support the tip of the spring holder, a protrusion piece coupled to the tip of the axial rod, and elastic adjustment means installed in the spring holder and the elastic force is adjusted by the elastic adjustment lever do.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the embodiments of the present invention, the same components in the drawings are denoted by the same reference numerals as much as possible, and detailed descriptions of related known configurations or functions will be omitted so as not to obscure the subject matter of the present invention.

1 and 2 is a plan view showing the chair assembly 1 of the present invention to which the tilting limit function is given, and FIG. 2 is a state in which the spring is somewhat compressed while the pair of sliders for adjusting the tilting pressure is transferred. The tilting pressure is adjusted according to the compression of.

Chair assembly 1 of the present invention is installed in the upper and lower cases (2) and (3) and the upper and lower cases (2) and (3) that are separated by a fastening member such as a bolt or a piece to provide a chair assembly (1). Elevating means for elevating, tilting means for adjusting the inclination of the back, tilting limiting means for limiting the degree of inclination of the backrest in multiple stages, elastic control means for adjusting the elastic force of the tilting means, and both sides of the case (2) (3) The lifting lever 4 and the limit lever 5 which are respectively axially mounted on the lifting lever 4 and the elastic control lever 7 which are axially installed on the lifting lever 4 are largely comprised.

The tilting means of the present invention is as follows.

A pair of long holes 8 and 9 formed in an arc shape on both sides of the rear end of the lower case 3 and coupled to the long holes 8 and 9 so as to move along the long holes 8 and 9. A shaft rod 10 to be coupled, a spring support 11 coupled to the outer circumference of the shaft rod 10, and a pair of springs 12 and 13 coupled to each other protruding from both ends of the spring support 11. (15), the shaft engaging portion 16 is formed between the engaging portions 14, 15 protruding to the tip, the coupling hole 17 is formed open to the tip of the shaft engaging portion 16, and the coupling A shaft rod (19) coupled to the ball (17) and then fixed by a pin (18), a spring holder (21) installed facing the spring support (11), and installed inside the spring holder (21) and the shaft ( 19) The noise preventing bushing 20, in which the outer circumferential end is loosely coupled, the spring holder 21 in which the shaft rod 19 is loosely fitted and opened to the rear end, and the spring holder 21 protrudes into the case 2, 3; Support the tip of the Supporting parts 22 and 23, the protrusions 26 are coupled to the tip of the shaft 19, and the elastic control means is installed in the spring holder 21 and the elastic force is adjusted by the elastic control lever (7) It is composed.

The elastic adjustment means includes a pair of front and rear sliders 29 and 30 having opposite slopes 27 and 28 formed therein, threaded coupling holes 31 and 32 formed in the sliders 29 and 30, and Nut coupling grooves 33 and 34 formed to intersect the coupling holes 31 and 32 and symmetrical screw portions 35 and 36 are fitted into the coupling holes 31 and 32, respectively, and are formed at both ends thereof. And a screw rod 37 protruding through one side of the spring holder 21, and a nut 38 fitted into the coupling grooves 33 and 34 and fastened to the screw portions 35 and 36, respectively. 39, the movable body 40 having the coupling groove 41 formed therein to engage the sliders 29 and 30, and the inclined surfaces 27 and 28 of the sliders 29 and 30 may be in surface contact. Slopes 42 and 43 formed on both sides of the coupling groove 41 so as to be able to pass, through holes 44 formed in the center of the movable body 40 so that the shaft rod 19 can pass therethrough, and the movable body 40. It is built up on a pair of springs 12, 13, engaging portions 45, 46 and a lifting lever 4 which protrude to the rear end. And a first spur gear 48 coupled to the first and second spur gears 48 coupled to the shaft bar 47 of the elastic control lever 7 and the lower case 3. The second spur gear 49 is meshed with the third spur gear 50 fixed to one end of the screw rod 37 and engaged with the second spur gear 49.

The nuts 38 and 39 have a structure or a rectangular shape in which the rotation thereof is prevented even if the screw rod 37 rotates. Therefore, when the threaded rod 37 rotates, the nuts 38 and 39 come closer or further away. At this time, as shown in FIG. 2, when the nuts 38 and 39 are near, the inclined surfaces 27 and 28 of the sliders 29 and 30 that are in surface contact with the inclined surfaces 42 and 43 of the movable body 40 are actuated. As the moving body 40 moves to the rear end and the springs 12 and 13 are compressed, the grip force increases, and conversely, when the screw rod 37 rotates in the opposite direction and the nuts 38 and 39 are far away, FIG. The movable body 40 moves to the tip by the action of the inclined surfaces 27 and 28 of the sliders 29 and 30 and the inclined surfaces 42 and 43 of the movable body 40 which are in surface contact as shown in FIG. Is reduced.

The elastic control lever (7) is a shaft rod 47 is installed on the lifting lever (4), the bent handle 51 is installed at the end of the shaft bar 47, and the knob is installed on the handle 51 end ( 52). The sliders 29 and 30 and the movable body 40 may be formed of hard rubber or synthetic resin to absorb metal or impact well.

The tilting means is supported by springs 13 and 14 of high elastic force. That is, the spring holder 21 supporting the tip of the springs 13 and 14 is supported by the spring holder 21 which protrudes into the case 2 and 3, and the springs 13 and 14 of the spring holder 21 are supported. The shaft rod 10 of the spring support 11 supporting the rear end is coupled to the arc-shaped long holes 8 and 9 formed on both sides of the rear end of the case 3 so as to move along the long holes 8 and 9. It is burnt in composition.

The shaft bar 19 is circular motion along the long hole (8) (9) according to the tilting state, it is located below the screw rod (37) as shown in Figure 1, Figure 2 does not interfere or interfere with each other's operation .

The lifting lever 4 is axially installed on one side of the lower case 3, and opens and lowers the chair assembly 1 by opening and closing the operation pin 54 of the gas cylinder 53.

A rotating body 55 is installed at the shaft portion 4a of the lifting lever 4, and a hole 56 formed at an upper side of the rotating body 55 is formed at one side of the operating rod 57 as shown in FIG. 4. The bent portion 58 is coupled, and the ring portion 59 formed on the other side of the operating rod 57 is caught by the protrusion 61 of the actuator 60 shaft-mounted on the shaft portion 3a of the lower case 3. On one side of the actuator 60, a pressing part 61 for pressing the operating pin 54 is formed.

Therefore, when the lifting lever 4 is rotated to rotate the rotating body 55 in the clockwise direction, the operating rod 57 moves to the right side, and the pressurizing portion 61 descends while the operating pin 54 of the gas cylinder 53 falls. Since press the), the gas cylinder 53 is operated to adjust the height by raising or lowering the chair assembly (1).

When the height of the chair assembly 1 is adjusted, the lifting lever 4 is rotated in the opposite direction, and when the rotating body 55 rotates counterclockwise, the operating rod 57 is moved to the left side, and the pressing portion 61 is pressed. Is raised and the operation pin 54 of the gas cylinder 53 is raised to stop the operation of the gas cylinder 53, the height of the chair assembly 1 is fixed.

Of course, the rotating body 55 is located inside the case (2) (3), the elastic control lever 7 is installed on the lifting lever (4) shaft, but operates separately from the lifting lever (4). Then, the shaft portion 47 of the elastic control lever 7 is configured to penetrate through the rotating body 55 to operate.

The bushing 20 coupled to the spring holder 21 includes an insertion hole 20a in which the shaft rod 19 is loosely fitted, an extension portion 20b in which the insertion hole 20a extends, and a spring holder 21 of the spring holder 21. It is composed of a locking portion (20c) to be fitted into the hole, and absorbs the impact or noise generated when the tilt is to prevent the noise.

The tilting means of the present invention is as follows.

The limiter 5 is installed on the upper and lower cases 2, 3, and the shaft 5a is provided at the end of the shaft 5a of the limiter 5, which protrudes into the case 2,3. Actuator 62 rotates along the lower portion, a pair of shaft support portion 3e formed in the lower case 3 to axially support the shaft portion 5a, and one side arc portion 63 of the actuating aperture 62. The first stop groove 66, the second stop groove 67, the third stop groove 68, and the fourth stop groove 69 formed at predetermined intervals on the tip case recess 3c of the lower case 3. And a stopper 71 and a shaft rod 19 which are mounted on the one side of the stop groove 66 to 69 and protrude in a triangle at an intermediate portion of the stop piece 70. A through hole 78 formed in a direction intersecting the shaft hole 64 so as to freely enter and exit, a multi-stage inclined surface formed on the outer surface of the operating hole 62, and the support portion 3d of the lower case 3 when it is normally or tilted. A circle formed at the tip of the implement so that it can be supported by It consists of type ground 65. Multi-stage tilting is achieved by the multi-stage inclined surface and the shaft 19, and free tilting is achieved by the coincidence of the through hole 78 and the shaft 19.

As shown in FIG. 8, the multi-stage inclined surfaces 79, 80, and 81 have a first stop groove 66, a second stop groove 67, and a third stop groove 68 engaged with the stopper 71. And a first inclined surface 79, a second inclined surface 80, and a third inclined surface 81 that face or contact the protruding piece 26 of the shaft rod 19 according to the stop position of the fourth stop groove 69. As shown in FIGS. 10 to 13, a tilting angle equal to the separation distance L2, L3, and L3 between the protruding piece 26 and the first, second, and third inclined surfaces 79 to 81 is achieved. do.

By varying the distance from the shaft hole 64, the multi-stepped slopes 79, 80 and 81 obtain different tilting angles, i.e., separation distances L2, L3 and L3. For example, the first inclined surface 79 of the operating tool 62 is closest to the shaft hole 64, the third inclined surface 81 is farthest from the shaft hole 64, and the second inclined surface 81 is about the middle thereof.

In addition, the positions of the stop grooves 66 to 69 are determined according to the rotation of the limit lever 5, and when the second stop groove 67 and the stopper 71 are coupled as shown in FIG. 11, the first inclined surface 79 is formed. It faces the protruding piece 26 of the shaft 19, and tilting (3 ° back and forth) by the separation distance L2 of the first inclined surface 79 and the protruding piece 26 is permitted.

In addition, when the third stop groove 68 and the stopper 71 are coupled as shown in FIG. 12, the second inclined surface 79 faces the protruding piece 26 of the shaft 19, and the second inclined surface 79 is formed. And tilting (around 7 °) by the separation distance L2 of the protruding piece 26 is permitted.

In addition, as shown in FIG. 13, when the fourth stop groove 69 and the stopper 71 are coupled to each other, the third inclined surface 79 faces the protruding piece 26 of the shaft 19, and the third inclined surface 79. And tilting (around 11 °) by the separation distance L4 of the protruding piece 26 is permitted.

The protruding piece 26 is limited by tilting since the movement exceeding the separation distance L2, L3, L4 by the first inclined surface 79 to the third inclined surface 81 is suppressed.

When the first stop groove 66 and the stopper 71 are coupled to each other, as shown in FIG. 10, the through hole 78 and the shaft bar 19 are positioned on the same axis line, and the tilting limit due to the inclined surface is eliminated. As it enters and exits through-hole 78, free tilting up to the maximum tilting angle (eg 0 ° to 27 °) is possible.

On the other hand, Figure 15, Figure 16 is a side view of the chair with the chair assembly 1 of the present invention is installed, the back plate 84 is installed on the upper portion of the frame 83, the shaft 10 in the lower portion of the frame 83 ) Is axially installed, and the upper portion of the rear end of the chair assembly 1 is axially installed on the first protrusion 83a protruding to the lower portion of the frame 83, and the second protrusion 83b protrudes to the lower portion of the frame 83. The rear end of the seat plate 85 is axially installed, and the front end of the seat plate 85 is axially installed on the upper portion of the connecting member 86 which is axially installed at both ends of the chair assembly 1.

 In the free tilting state as shown in FIG. 10, the back plate 84 may be inclined as much as shown in FIG. 16, and as long as the section L1 in which the shaft rod 10 can move in the long holes 8 and 9, that is, the maximum Free tilting up to tilting angles (eg 0 ° to 27 °) is possible.

In the drawings, reference numeral 98 denotes a shaft hole, and 99 denotes a piece hole for fastening upper and lower cases.

The present invention as described above is not limited to the present embodiment and the accompanying drawings, various substitutions, modifications and changes are possible within the scope without departing from the technical spirit of the present invention, which is usually in the art It is self-evident for those who have knowledge.

As described above, the present invention can achieve multi-stage tilting and free tilting by a tilting limit function (limit function) of a simple configuration, so that the convenience of use and comfort can be pursued by the diversification of functions. .

In addition, the present invention can achieve multi-stage tilting, free tilting with a simple configuration, the cost is greatly reduced, there is an effect such as to enhance the product.

Claims (4)

First stop grooves formed at predetermined intervals on the limit lever 5 that is axially mounted to the case, an actuating tool 62 provided on the shaft end of the limit lever 5, and an arc of one side of the actuating tool 62. 66 and the second stop groove 67, the third stop groove 68 and the fourth stop groove 69, a finger piece 70 provided in the tip recessed groove 3c of the case, and the finger The stopper 71 which is raised and protruded at an intermediate portion of the piece 70 and is caught by any one of the first to fourth stop grooves 66, 67, 68 and 69, and formed on both sides of the rear end of the case. Arc-shaped long hole (8) (9), the shaft rod (10) coupled to the long hole (8) (9), the spring support (11) coupled to the outer circumference of the shaft rod (10), the spring support A spring holder 21 installed to face the 11, a pair of springs 12 and 13 that support the spring holder 11 and the spring holder 21, and a rear end of the spring holder 11 The front end is passed through the spring holder (21) A shaft bar 19 to be formed, a through hole 78 formed in the operating hole 62 to allow the shaft bar 19 to freely enter, and the first to fourth stop grooves 66, 67 and 68 ( 69, the first inclined surface 79, the second inclined surface 80 and the third inclined surface 81 of the operating tool 62 in contact with the protruding piece 62 of the tip of the shaft 19 according to the stop position Chair assembly. The method according to claim 1; The first inclined surface 79 of the actuating tool 62 is closest to the shaft hole 64, the third inclined surface 81 of the actuating tool 62 is furthest from the shaft hole 64, and the second of the actuating tool 62 is disposed. Chair assembly, characterized in that the inclined surface (80) is the middle distance. The method according to claim 1 or 2; Chair assembly formed by forming an arc-shaped ground (65) at the tip of the operating port (62). The method according to claim 1 or 2; Chair assembly by coupling the bushing 20 through which the tip of the shaft 19 passes through the spring holder (21).

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