KR100562337B1 - Titling device of chair - Google Patents

Abstract

The present invention relates to a chair tilting device for adjusting the inclination of the back of the chair, the tilting lever (5) which is operated up and down, the operating member (9) provided at the end of the tilting lever (5), and the tilting lever (5) A spring 28 which is hardened, a rotating member 15 which rotates about the shaft pin 24 according to the movement state of the operating member 9, a supporting member 17 on which the rotating member 15 is axially installed, Slider intermittent movement of the stopper (tilting rack) 47 while being driven in accordance with the rotation state of the interlocking member 30 and the interlocking member 30 by the rotating member 15, 36) can be operated up and down the conventional tilting lever used to push or pull back and forth to make it easier and easier to tilt.

Chair, seat, back, tilting, lever, operating member, rotating member, interlocking member, slider

Description

Chair tilting device {TITLING DEVICE OF CHAIR}

1: a side view of a chair in a state in which the back plate is tilted in the present invention.

Figure 2 is a side view of a chair in a seat plate lifted state in the present invention.

3 is a plan view of the state in which the slider is immersed in the present invention.

4 is a plan view of the state in which the slider protrudes in the present invention.

5 is a plan view of a state in which the slider is tilted to the stopper in the present invention.

6 is a side view of a state in which the rotating member is moved by the operating rod in the present invention.

7 is a side view of the rotation member is retracted by the operating rod in the present invention.

8 is a front view of a state in which the rotating member moved to the lowering of the tilting lever in the present invention.

9 is a front view of a state in which the rotating member is moved by the lifting of the tilting lever in the present invention.

10 is a plan view of a part of the support member of the present invention.

11 is a partial cross-sectional view of the present invention slider.

12 is a sectional view of another embodiment of the present invention slider portion.

13 is a plan view of another embodiment of the present invention.

14, 15: reference view of the present invention tilting state.

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

(1)-Chair (2)-Chair tilting device

(3)-seat (4)-base

(4a)-vertical groove (5)-tilting lever

(5a)-insertion (6)-back

(7)-Bracket (8) (56)-Handle

(9)-Operating member (10)-Joining groove

(11) (20)-Body (12)-Protrusion Rod

(13) (14) (36b)-Inclined surface (15)-Rotating member

(16) (18a)-ground plane (17)-support member

(18)-Ground (19) (43)-Vertical

(21) (22) (23)-Axes (24) (45) (53) (58)-Axes pin

(25)-sitting groove (26)-Vertical Engineer

(27)-Corner (28)-Spring

(28a) (30b) (57b)-hook (28b)-bend

(28c) (57c)-Support (29)-Hanging Rods

(30)-Interlocking member (30a) (57a)-Shaft

(31)-engagement groove (32)-ring

(33)-support rod (35)-guide

(36)-Slider (36a) (44)-Nagon

(37)-Senior (38)-Sign

(39)-Piece (40)-Guide

(40a)-Head (41)-With Guidance

(42)-Open Groove (47)-Stopper

(47a)-Jagged Groove (47b)-Jagged

(55)-lift lever (57)-cartage member

The present invention relates to a chair tilting device for adjusting the inclination of the back of the chair, it can be easily tilted without a great effort by configuring the conventional tilting lever that was operated by the method of pushing or pulling back and forth by pushing or pulling up and down. It would be.

The tilting device for adjusting the chair's back tilt is operated by the tilting lever. The tilting lever is generally located on the left side of the chair, and the lifting lever for operating the gas cylinder to raise or lower the seat plate is located on the right side of the chair. Of course, the positions of the tilting lever and the lifting lever may be installed together at one side, or may be installed by changing the front and rear positions or the left and right positions.

The lifting lever installed on the chair is configured to be operated up and down, so that the height of the seat can be easily manipulated without great effort, but the conventional tilting lever is configured to be able to be operated back and forth, which is very inconvenient to operate.

For example, a chair (back comfort chair, beauty chair, etc.) that is fully reclined to the back or the horizontal back, the tilting lever away from the user when the back is flipped, and the ergonomics of the hands and arms In consideration of the movement, it is preferable to configure the tilting lever to operate the back and forth to generate a climbing.

However, the tilting lever is preferably operated vertically in consideration of the fact that the upper body of the user is maintained vertically when the back is tilted at a predetermined angle, for example, in a range of 10 ° to 30 °, such as an office chair. Since the tilt angle of the chair is adjusted by operating the tilting lever back and forth in a state where the upper body is kept vertical, a large amount of force is required, which causes inconvenience in use.

In other words, when the tilting lever is pushed forward or pulled back (front and rear operation), the user's arm and hand are rotated around the shoulders, which requires a lot of force, but when the tilting lever is operated up and down, the hand Or use your fingers to lightly pull up or push down on the lever, so you can easily operate it without too much effort.

Therefore, the present invention is configured to be able to operate the conventional tilting lever up and down considering the ergonomic movement form when operating the tilting lever up and down, so that the chair back angle (tilting) can be easily and conveniently operated without great force. It is an object to provide a chair tilting device.

In addition, an object of the present invention is to provide a chair tilting device that prevents damage and breakage of the tilting part and the back by imparting an elastic force to the interlocking member to prevent a quick release of the slider and the stopper.

In order to achieve the above object, the chair tilting device of the present invention includes a tilting lever which is axially installed on the seat base portion and is operated up and down, an actuating member provided at the end of the tilting lever, a spring which supports the tilting lever, and is vertically operated A rotating member pivoting about the shaft by a tilting lever, a supporting member on which the pivoting member is axially installed, an interlocking member having an elastic force and rotating about the shaft by the rotating member, and a stopper It is composed of a slider or the like that is caught or released (tilting rack), characterized in that the chair back is tilted by the vertical operation of the tilting lever.

In addition, the linkage member for directly projecting the slider is characterized in that to prevent the rapid movement of the back plate by using an elastic member such as a spring to prevent damage and breakage of the tilting part back plate.

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 elements 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 that the gist of the present invention is not obscure.

The chair 1 tilting device 2 of the present invention is mounted on a portion of the base 4 fixed to the bottom of the seat plate 3, and the back plate 6 is tilted by operating the tilting lever 5 up and down. 3 to 5 are plan views of the chair tilting apparatus 2 of the present invention, and FIGS. 6 and 7 are sectional views and an exploded perspective view thereof.

The tilting lever 5 is installed on the base portion 4 as a bracket 7 so as to be able to move up and down about the rotating shaft, and both ends thereof are provided with a handle 8 and an operating member 9, respectively.

The tilting lever 5 has a generally "a" shape, and a handle 8 and an operating member 9 are coupled to both ends, respectively, and one side is axially installed as a bracket 7 on a seat plate base 4 portion, and is vertically up and down. The lifting lever 55 having a handle 56 is also axially mounted to the base 4 part by the bracket 7.

The tilting lever 5 is bent in a "b" shape so that the up and down movement with the handle 8 protruding out of the base 4 causes the operating member 9 located inside the base 4 to be clockwise or counterclockwise. Rotational direction.

In addition, the vertical movement portion of the tilting lever 5 is loosely coupled to the vertical groove 4a formed on one side of the base 4 so that even if an excessive external pressure is applied to the tilting lever 5, the breakage (damage) of each part or the positional deviation, etc. This is avoided.

The operating member 9 provided at the end of the tilting lever 5 may be integrally processed with the same material as the tilting lever 5, or may be injection molding of a release material, such as a metal tilting lever and a resin working member integrally. Alternatively, the separately manufactured tilting lever 5 and the operating member 9 may be forcibly combined.

When the tilting lever 5 and the actuating member 9 are forcibly coupled as shown in the example of the present invention, a thin insert portion 5a is formed at the end of the tilting lever 5 and the actuating member 9 is formed. A rectangular coupling groove 10 to which the insertion portion 5a is forcibly coupled is formed at the side portion thereof.

The body 11 of the operating member 9 may be configured in a quadrangle or polygon, or a deformation shape thereof, but a circular structure is preferable in view of the rotation by the tilting lever 5.

On one side of the outer circumferential surface of the body 11 is formed a downward protrusion bar 12 for pushing the ground surface 16 of the rotating member 15, the inclined surface (13, 14) on the upper and lower portions of the other outer peripheral surface of the body 11, respectively Is formed.

When the chair user excessively pulls up the tilting lever 5 upward or pushes the tilting lever 5 excessively downward, the chair user transmits the tilting lever 5 to the ground plane 18a through the inclined surfaces 13 and 14. However, since it is buffered by the vertical through hole 26 as shown in FIG. 10, damage or malfunction of the support member 17 is prevented. The ground plane 18a is elastically provided by the vertical hole 26 and the material.

The support member 17 has a rectangular block shape having a through hole 19 formed therein so that the rotating member 15 can be coupled thereto, and then loosely couples the rotating member 15 to the through hole 19. When the shaft pin 24 is coupled to the shaft hole 21 formed in the upper portion of the shaft hole 23 and the shaft hole 22 of the support member 17, the rotation member 15 is centered on the shaft pin 24. It can be rotated clockwise or counterclockwise. When the shaft pin 24 is fastened to the base 4, the support member 17 is coupled to the base 4 seating groove 25 to be firmly fixed to prevent the flow thereof.

Ground portion 18 formed integrally on one side of the support member 17 is composed of a synthetic resin having some elasticity or other materials having some elasticity, vertical holes (26) opened up and down in the center portion 26 ) Is formed.

Therefore, when the inclined surface 13 or the other inclined surface 14 of the operating member 9, or the edge portion 27 formed between the inclined surface 13 and the inclined surface 14 is in surface contact or line contact, as shown in FIG. It is buffered in the direction of the vertical hole 26. That is, since the inclined surfaces 13 and 14 are held in close contact with the ground surface 18a of the ground portion 18, unnecessary flow of the tilting lever 5 is prevented.

The inclined surfaces 13 and 14 formed on the operating member 9 are in surface contact with the ground surface 18a formed on the support member 17, respectively, and the rotation angle θ and the handle 8 of the operating member 9 are adjusted . ) The lifting stroke is determined, and the rising or falling state of the tilting lever is maintained.

That is, even if a force (rotation moment) for rotating the member 15 to rotate in the clockwise direction is applied by the holding force of the spring 28 to be described later, the inclined surface 13 or the other inclined surface 14 is larger than the rotational force by the spring. The force comes into contact with the ground plane 18a, so that the rising or falling state of the tilting lever 5 is continuously maintained.

Therefore, when the tilting lock is released by the lowering of the tilting lever 5 (when the coupling state between the slider 36 and the stopper 47 is released), the rotation member 15 is driven by the holding force of the spring 28. Is rotated clockwise, the interlocking member 30 is rotated counterclockwise, so the slider 36 enters the guide groove 35, and the slope of the back plate 6 can be adjusted. When the tilting lever 5 is lowered after the tilt of the wheel is adjusted, the rotating member 15 rotates counterclockwise regardless of the holding force of the spring 28, and the interlocking member 30 rotates clockwise. While the slider 36 protrudes and is locked, the inclination of the back plate 6 is fixed.

The rotation member 15 has a ground surface 16 is formed on the front end side, the engaging rod 29 is protruded upward on one side of the upper surface, the hook portion 32 of the interlocking member 30 is fitted to the outer side Losing coupling groove 31 is formed in the center hole 23 is formed.

The spring 28 holding the pivot member 15 has hook portions 28a and support portions 28c formed on both sides of the bent portion 28b, respectively, and the hook portions 28a are inserted into the through holes 19. Then, the locking rod 29 of the rotating member 15 is engaged, and the bent portion 28b is engaged with the shaft pin 24 located inside the through hole 19, and the supporting portion 28c is the supporting member 17. By contacting the corner portion of the rotating member 15 is a gripping force acting to rotate in a clockwise direction around the shaft pin (24) is applied.

On the other hand, the slider 36 is coupled to the guide groove 35 formed at the front end of the base 4 so that the slide movement, the guide plate 38 having a long hole 37 on the upper portion of the guide groove 35 is a plurality of pieces (39) It is fixed, the guide rod 40 is loosely coupled to the long hole 37 in the center portion of the slider 36 is fixed or fastened so that the slider 36 can slide along the long hole 37.

An inclined surface 36b is formed at the bottom end of the slider 36 to be easily coupled to the locking groove 47a of the stopper 47, and the guide plate 38 includes a plurality of holes 43 into which the piece 39 is fitted. The holes 44 to which the shaft pins 45 are fastened are formed, respectively.

The guide rod 40 protruding to the upper portion of the slider 36 may be fixed by welding or screwing into the hole 36a. However, as shown in FIG. 11, the head 40a of the guide rod 40 is a slider. (36) When protruding downward to the bottom, the guide 36 is formed in the base 4 so that the head 40a can pass so that the slider 36 does not interfere with the slide movement.

The guide groove 35 has a structure that is open to the tip of the base 4 so that the slider 36 can stand, and the engaging protrusion 47b of the stopper 47 may be located at the front end of the guide plate 38. The opening groove 42 is formed.

FIG. 14 is a state in which the slider 36 is engaged with the locking groove 47a located at the lowermost part, and FIG. 15 is a state in which the slider 36 is locked in the locking groove 47a located at the uppermost part, and thus the back plate 6 The tilting angle of) becomes the section (section between the lower locking groove and the upper locking groove).

According to the rotation state of the rotation member 15, the linkage member 30, which projects the slider 36, is provided with a hook portion 32 at one end, a hook portion 30b is formed at the other end, and the hook portion. A shaft hole 30a is formed between the 32 and the hook portion 30b.

The shaft hole 30b is installed in the guide member 38 by the shaft pin 45 so as to be free to rotate, the ring portion 32 is coupled to the insertion hole 31 of the rotation member 15, hook portion 30b ) Is hooked to the slider (36) guide rod (40).

The interlocking member 30 is preferably a spring structure that can expect some buffer, thereby preventing damage or damage when the slider 36 malfunctions or is not tilted correctly.

12 and 13 are cross-sectional views and a plan view of another embodiment of the present invention, by installing the support member 57 on the opposite side of the interlocking member 30 so that the slider 36 enters the guide groove 35 more easily. It is configured to release the jam.

The elasticity of the finger member 57 is configured to be weaker than the elasticity of the interlocking member 30 so that the slider 36 can protrude without difficulty when locked.

The finger member 57 has a hook portion 57 and a support portion 57 on both sides of the shaft portion 57, such as the interlocking member 30, the hook portion 57b is caught by the guide rod 40, the shaft portion (57a) is coupled to the shaft pin 58 is fastened to the guide member 38, the support portion (57c) is caught in the corner portion of the base (4) so that the slider 36 can easily enter the guide groove (36) It will be hard.

In the present invention, the slider 36 is brought out while sliding the horizontal by the guide rod 40 and the long hole 37. In this case, as shown in FIG. 4, when the slider 36 protrudes, the tip of the slider 36 is inserted into the locking groove 47a of the stopper 47, and thus the movement of the stopper 47 is prevented. Alternatively, the slope is maintained in the current state as shown in FIG. 15. An inclined surface 36a is formed at the tip of the slider 36 to be easily coupled to the locking groove 47a.

That is, when the user wants to release the locking state (stopping state: the state in which the slider and the stopper are coupled) in order to adjust the tilting angle of the back plate 6, the user slightly lifts the back plate 6 with his back (or hand). Push or pull slightly to move the slider 36 and the stopper 47 so that they can be disengaged, and then push the tilting lever 5 downward by using the handle 8 to bring the tilting lever ( The operating member 9 coupled to 5 is rotated, so that the protruding rod 12 of the operating member 9 rotates clockwise about an axis as shown in FIG. 9, and by the holding force of the spring 28. The ground plane 16 of the rotating member 15 is moved to the left side, the rotating member 15 is rotated clockwise around the shaft pin 24 as shown in Figure 3, the interlocking member 30 is the shaft pin ( 45 is rotated in the counterclockwise direction so that the slider 36 as shown in Figure 3 guide groove (35) The lock state is released as it enters the inside, and the stopper 47 located in the opening groove 42 is in a state capable of moving upward or downward.

In this state, when the user properly adjusts the inclination of the back plate 6 with the back (or hand) and then pulls up the tilting lever 5, the operating member 9 coupled to the tilting lever 5 as shown in FIG. By rotating counterclockwise, the protruding rod 12 of the operating member 9 pushes the ground plane 16 of the rotating member 15 to the right, and the rotating member 15 moves the shaft pin 24 as shown in FIG. 4. Rotation in the counterclockwise direction to the center, and the interlocking member 30 is rotated in the clockwise direction around the shaft pin 45, so the slider 36 is protruding and the locking groove 47a of the stopper 47 maintained at an appropriate inclination. As shown in FIGS. 14 and 15, the tilting state of the back plate 6 is maintained since the movement of the stopper 47 is prevented.

On the other hand, the back plate 6 is in a state in which a significant holding force is applied by a spring not shown so as to tilt in the direction of the seat plate 3 when the tilting is released.

Therefore, when the locking state of the slider 36 and the stopper 47 is released immediately as the tilting state is released, the back plate 6 moves rapidly in the direction of the seat plate 3 by the elastic force of the spring (not shown), and the tilting part and the back plate ( 6) as well as fear of damage and breakage, as the user may be injured in severe cases, in the present invention, the linkage member 30, which hangs directly to the slider 36, by using an elastic member such as a spring to quickly the back plate (6) The rotation can be prevented.

That is, even if the tilting lever 5 is lifted to release the tilting state, the coupling force between the slider 36 and the stopper 47 is more superior than the tilting release force by the tilting lever 5, so that the slider 36 and the stopper 47 ) The stopping state is maintained and the rotation member 15 is rotated in the clockwise direction, as shown in FIG. 5, the angle θ1 of the interlocking member 30, for example, the hook portion 30b and the ring portion 32. Only the angle between them will open.

When the tilting lever 5 is raised and the angle of the interlocking member 30 is opened, the user of the chair 1 moves the back plate 6 forward or backward using the back or the hand or moves the slider back 36. ) And the stopper 47 are momentarily or temporarily released, and in this state, the rotation member 15 is rotated clockwise by the spring 28, and the shaft pin 45 is rotated by the rotation member 15. 5) the engagement of the slider 36 and the stopper 47 is released by the interlocking member 30 in which the rotation moment is applied in the counterclockwise direction as shown in FIG. Since it is a state supported by, the rapid rotation of the back plate 6 is suppressed.

That is, even if the pivoting member 15 is rotated clockwise by lowering the tilting lever 5 to release the tilting state, the back plate 6 is not moved so that the coupling force between the slider 36 and the stopper 47 is released. Since the tilting state is not released unless the tilting part and the back plate are damaged (or broken).

In addition, when the tilting lock is released by the lowering of the tilting lever 5 (when the coupling state between the slider 36 and the stopper 47 is released), the rotation member 15 is driven by the holding force of the spring 28. The clockwise rotation, the interlocking member 30 is rotated in the counterclockwise direction so that the slider 36 enters the guide groove 35, and the tilt of the back plate 6 is adjusted, and the back plate 6 When the tilting lever is adjusted and the tilting lever 5 is lowered, the rotating member 15 rotates counterclockwise regardless of the holding force of the spring 28, and the interlocking member 30 rotates clockwise. The slider 36 protrudes and is coupled to the locking groove 47b of the stopper 47 as shown in FIGS. 14 and 15 to fix the inclination of the back plate 6.

Of course, since the lower inclined surface 14 and the ground surface 18a are in surface contact with a pressure stronger than the holding force of the spring 28, the lock state is maintained, so that the inclination of the back plate 6 is continuously maintained, and the tilting lever 5 The fall of) is also prevented.

In the present invention, the linkage member 30 satisfies the extent that the elastic force (buffer force) is applied while the slider 36 can be raised and received sufficiently.

In the present invention, the operating member 9, the support member 17, and the rotating member 15 may be made of metal, and when made of a synthetic resin material, such as nylon glass (or epoxy), wear resistance is strong and friction It is preferable to perform injection molding with a low coefficient of resin material to achieve smooth operation while improving strength.

Reference numeral 34 is a coupling portion to which the chair support rod or gas cylinder is coupled, 48 is a support member fixed to the seat plate 3, 49 is a support member 48 and the base 4 A coupling pin for coupling, 50 is a handle for adjusting the tilting angle of the seat plate, 51 is a member for supporting the stopper 47, 52 is a bracket to which the back plate 6 is fixed, (53) Is a shaft pin, and 54 is a rotating member.

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, in the present invention, the tilting lever is installed to be operated vertically, so that the tilting angle of the chair back can be conveniently manipulated without great effort, and the configuration is simple and the manufacturing is easy and the cost is low.

In addition, it is a very useful invention having the effect of preventing damage or breakage of the tilting part and the back plate by the elastic force of the interlocking member.

Claims (7)

A chair tilting device configured to adjust a backrest angle of a chair by a slider which is settled by a tilting lever mounted to a seat plate base, and a stopper interrupted by the slider; A tilting lever operated up and down, an actuating member provided at the end of the tilting lever, a spring holding the tilting lever, a rotating member rotating around an axis according to the movement state of the actuating member, and the rotating member It is composed of a support member that is installed axially, the interlocking member for rotational movement about the axis by the rotating member, and the slider to go out according to the rotational movement of the interlocking member to tilt the chair back angle according to the vertical operation of the tilting lever Chair tilting device characterized in that. The method according to claim 1; The operating member is a chair tilting device characterized in that the inclined surface is formed on one side of the upper and lower sides of the body, the downward protrusion rod for moving the rotating member is formed on one side of the body. The method according to claim 1 or 2; The support member includes a through hole through which the rotating member is rotatably coupled, an axial pin for axially installing the rotating member to rotate, a spring coupled to the shaft pin to hold the rotating member, and a vertically inclined surface of the operating member. Chair tilting device consisting of a grounding portion and a vertical hole formed in the grounding portion. The method according to claim 1 or 2; Rotating member is a chair tilting device consisting of a ground surface in contact with the protruding rod, the shaft hole is coupled to the shaft pin, the engaging rod is coupled to the spring hook portion, and the insertion groove into which the ring portion of the interlocking member is fitted. In claim 1; The interlocking member is a chair tilting device, characterized in that the spring structure is configured by each of the hook portion coupled to the rotation member insertion groove and the hook portion to be engaged with the slider guide bar at both ends extending from the shaft hole. The method according to claim 1 or 2; The slider is a chair tilting device consisting of a slope formed in the tip portion, a hollow formed in the center portion, and a guide rod fastened to the hollow. The method according to claim 1 or 2; Chair interlocking device characterized in that it has an elastic force.

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