KR101504534B1 - Multi fuctional assembly and chair with the same - Google Patents

Abstract

The present invention relates to a multifunctional assembly and a chair with the same. The multifunctional assembly comprises: a body which is formed in the shape of a hexahedron with open top; a first control lever unit rotationally installed on a side of the body; a position control unit rotationally hinged to an upper portion of the body and transferring a seat unit back and forth by rotating operation of the first control lever unit to control a position; and a tilting control unit locking or releasing tilting operation of a backrest and the seat unit by the rotating operation of the first control lever unit. By using the multifunctional assembly, according to a user′s body type or a working environment, a back and forth directional position and height of the seat unit, a tilting angle of the backrest, and an elastic force can be adjusted.

Description

[0001] MULTIFUNCTIONAL ASSEMBLY AND CHAIR WITH THE SAME [0002]

The present invention relates to a multifunctional assembly and a chair having the multifunctional assembly. More particularly, the present invention relates to a multifunctional assembly having a position and height adjustment function of a seat back and a seat according to a user's body shape and a working environment, and a chair having the same.

Generally, the chair includes a seat, a leg, and a backrest.

At the same time, the chair can be equipped with a headrest supporting the head and an armrest supporting the arm comfortably.

In recent years, chairs capable of adjusting the position and height of the seat in the front-rear direction or the angle of the backrest have been developed depending on the user's body shape and work environment.

For example, the following patent documents 1 and 2 disclose a chair assembly configuration.

The following Patent Document 1 discloses a tilting device that is provided in upper and lower cases to raise and lower a chair assembly, a tilting means that adjusts the inclination of the back plate, a tilting limiting means that restricts the degree of inclination of the back plate to multiple stages, A locking lever provided on both sides of the case, a limit lever provided at the tip of the case for multi-tilting, and an elasticity adjusting lever provided on the lifting lever, The structure of the chair assembly is disclosed.

Patent Document 2 discloses a tilting restricting portion for setting a free tilting angle of a back plate, a multistage locking portion for fixing a tilting state of the back plate, an elasticity adjusting portion for adjusting a tilting strength of the back plate, a seat plate tilting portion for tilting the seat back forward, And a lift controller for adjusting the height of the chair assembly.

Korean Patent Registration No. 10-0791454 (Announcement on January 3, 2008) Korean Patent Registration No. 10-1028731 (issued on April 14, 2011)

However, the chair assemblies disclosed in Patent Documents 1 and 2 only provide the tilting function and the height adjustment function of the seat, and the forward / backward movement function of the seat is not applied.

In the case of a chair according to the related art, there is a limitation in providing a sliding function of a seat in the assembly itself by applying a method in which a plurality of plates are provided on a seat portion to perform sliding movement.

SUMMARY OF THE INVENTION An object of the present invention is to provide a multifunctional assembly and a chair having the multifunctional assembly capable of adjusting the position and height of the seat portion in the forward and backward directions according to the user's body shape and work environment.

Another object of the present invention is to provide a multifunctional assembly capable of locking the adjustment function of the seat portion and the backrest together with the position of the seat back and forth and the height adjustment function, and a chair having the same.

In order to achieve the above object, a multifunctional assembly according to the present invention includes a body formed in a hexahedron shape having an open top, a first adjustment lever portion rotatably installed on one side of the body, And a tilt operation of the backrest and the seat portion is locked or unlocked by a rotation operation of the first control lever portion, And a tilting adjusting unit for adjusting the tilting angle.

The multifunctional assembly according to the present invention comprises a second adjusting lever portion rotatably installed on the other side of the body, a height adjusting portion for locking or releasing a stretching movement of the cylinder provided on the leg portion by the rotation operation of the second adjusting lever portion, And an elasticity adjusting unit for adjusting the elasticity of the backrest and the seat during tilting operation of the seat.

The first and second control lever portions may include first and second rotating cylinders each having a hollow space formed at a center thereof and first and second rotating shafts penetratingly coupled to the first and second rotating cylinders, .

The position adjuster includes a cover that is formed in a hexahedron shape having an opened lower surface, a cover that shields the upper portion of the body and the bracket, a moving plate that is slidably disposed on the upper surface of the cover, And a locking member which moves in the forward and backward directions along the installation hole formed in the cover to lock or unlock the rotary member, and a first latching bar is provided between the first control lever portion and the locking member .

A plurality of engaging projections are formed on an outer circumferential surface of the rotating member, and a plurality of engaging grooves are formed on the moving plate at predetermined intervals so that the engaging projections are sequentially engaged with each other.

A first spring for providing an elastic force to the locking member is provided between the cover and the locking member and a second spring is provided between the moving plate and the rear end of the cover to provide a restoring force to the moving plate .

The tilting adjuster is rotatably coupled to a hinge shaft that engages the body and the bracket, and tilts the backrest by the pulling action of the second latching bar. A stopper for locking or releasing the bracket, and an elastic spring for providing a restoring force to the stopper.

The height adjusting portion is rotatably coupled to a hinging shaft for engaging the body and the bracket, and a third latching bar rotatably coupled to the hinging shaft for engaging the body and the bracket, And a pressing member for pressing the pressing member.

Wherein the elastic force restricting portion comprises a spring for providing an elastic force to the tip of the bracket, an adjusting shaft penetratingly connected to the center of the spring for adjusting the length of the spring by rotational motion, And a gear unit.

In order to achieve the above-mentioned object, a chair having a multifunctional assembly according to the present invention includes a multifunctional assembly. The multifunctional assembly is used to adjust the position and height of the seat portion in the fore and aft direction, Thereby controlling the elastic force.

As described above, according to the multifunctional assembly and the chair having the multifunctional assembly according to the present invention, the position and height of the seat portion can be adjusted by operating the first control lever portion of the multifunctional assembly.

Further, according to the present invention, the tilting angle and the elastic force of the backrest can be adjusted by operating the second control lever portion of the multifunctional assembly.

Thus, according to the present invention, the user can comfortably sit by adjusting the position and height of the seat in the front and back direction, the tilting angle of the backrest and the elasticity of the seat according to the user's body shape and work environment by using the multifunctional assembly.

1 is a side view of a chair with a multifunctional assembly according to a preferred embodiment of the present invention;
2 is a perspective view of a multifunctional assembly according to a preferred embodiment of the present invention,
FIG. 3 is a plan view showing a state where the position adjusting unit is removed in FIG. 2,
4 is a bottom view of the position adjusting portion,
FIG. 5 is an operational state diagram illustrating an operation of adjusting a seat front-rear direction position of a chair having a multifunctional assembly according to a preferred embodiment of the present invention; FIG.

Hereinafter, a multifunctional assembly according to a preferred embodiment of the present invention and a chair having the same will be described in detail with reference to the accompanying drawings.

In this specification, the direction in which the backrest is installed around the seat portion is referred to as the rear of the chair, and the opposite direction is referred to as the front of the chair.

1 is a side view of a chair with a multifunctional assembly according to a preferred embodiment of the present invention.

A chair 10 having a multifunctional assembly according to a preferred embodiment of the present invention includes a seat portion 11 on which a user sits, a leg portion 12 provided on a lower portion of the seat portion to which a plurality of wheels are attached, (Hereinafter referred to as " assembly ") which is installed at a lower portion of the seat portion 11 and which is connected to the rear side of the seat portion 11 and adjusts the forward and backward position and height of the seat portion 11 and tilts the backrest 13, Quot;). ≪ / RTI >

An armrest supporting the user's arm is mounted on both sides of the seat portion 11 or the backrest 13 and a headrest supporting the head of the user can be mounted on the upper portion of the backrest 13. [

A cylinder 15 may be provided on the upper portion of the leg portion 12 to adjust the height of the seat portion (see FIG. 3).

The configuration of the assembly will be described in detail with reference to FIGS. 2 and 3. FIG.

FIG. 2 is a perspective view of a multifunctional assembly according to a preferred embodiment of the present invention, FIG. 3 is a plan view showing a state in which the position adjusting unit is removed in FIG. 2, and FIG. 4 is a bottom view of the position adjusting unit.

2 and 3, the assembly 14 includes a body 20 formed in a hexahedron shape having an opened upper surface, first and second control lever portions 30 and 30 disposed on both sides of the body 20, A backrest 13 and a seat portion 11 which are hingedly connected to the upper portion of the body 20 and adjust the position of the seat portion 11 by moving the seat portion 11 back and forth, A tilting adjusting portion 60 for locking or releasing the tilting operation, a height adjusting portion 70 for locking or releasing the stretching operation of the cylinder 15 provided on the leg portion 12, a backrest 13 and a seat portion 11, And an elastic force adjusting unit 80 for adjusting the elastic force in the tilting operation.

The body 20 may be made of a metal material such as iron to have rigidity.

A hinge shaft 21 is provided across the side walls at the center of the body 20 and a bracket 22 can be coupled to the hinge shaft 21 to be rotatable.

The bracket 22 hinges about the hinge shaft 21 and rotates to thereby tilt the back 13.

To this end, a lower end portion of the backrest 13 is coupled to the upper surface of the bracket 22, and both side ends of the position adjusting portion 50 are hinged to both side walls of the bracket 22.

The first control lever unit 30 is connected to the position control unit 50 and the tilting control unit 60 to transmit the operation force of the user to the position control unit 50 and the tilting control unit 60.

The first control lever 30 includes a first rotating cylinder 31 provided with a hollow shaft having a center space and a first rotating shaft 32 penetratingly coupled to the inside of the first rotating cylinder 31 .

The first rotating cylinder 31 is coupled at its inner end with a first locking bar 55 of the position adjusting part 50 to be described below and rotates in accordance with the user's pulling operation to move the first locking bar 55 .

A first control lever (33) may be formed on one side of the first rotating cylinder (31) so that the user can easily operate the first control lever (33).

The first rotating shaft 32 may be formed to have a smaller diameter than the inner diameter of the first rotating cylinder 31 so as to be inserted into the first rotating cylinder 31.

The first rotation shaft 32 is coupled to a second engagement bar 61 of a tilting control unit 60 which will be described later on an inner end thereof and rotates in accordance with a user's rotation operation to rotate the second engagement bar 61 .

The first gripper member 34 may be coupled to the outer end of the first rotating shaft 32 so that the user can rotate the gripper member 34 easily.

The second control lever unit 40 is connected to the height adjusting unit 70 and the elasticity adjusting unit 80 to transmit the user's operation force to the height adjusting unit 70 and the elasticity adjusting unit 80.

The second control lever portion 40 includes a second rotating cylinder 41 provided with a hollow shaft having a space at the center thereof and a second rotating shaft 42 penetratingly coupled to the inside of the second rotating cylinder 41 .

The inner end of the second rotating cylinder 41 is engaged with the third engaging bar 71 of the height adjusting portion 70 to be described below and is rotated in accordance with the user's pulling operation to rotate the third engaging bar 71 .

A second adjusting lever (42) may be formed on one side of the second rotating cylinder (41) so that the user can easily operate the second adjusting lever (42).

The second rotary shaft 42 may be formed to have a smaller diameter than the inner diameter of the second rotary cylinder 41 so as to be able to pass through the inside of the second rotary cylinder 41.

The first gear of the tilting control unit 70, which will be described below, is coupled to the inner end of the second rotation shaft 42, and the second rotation shaft 42 is rotated according to the rotation operation of the user to rotate the first gear .

The second gripper member 44 may be coupled to an outer end of the second rotating shaft 42 so that the user can easily operate the second gripper member 44.

2 and 4, the position adjusting unit 50 includes a cover 51 which is formed in a hexahedron shape having a bottom opened and which covers the body 20 and the upper portion of the bracket 22, a cover 51, A rotary member 53 rotatably installed on the upper surface of the cover 51 and a mounting hole 511 formed on the cover 51 to be slidable in the front and rear direction And a locking member 54 that moves and locks or releases the rotary member 53.

The side walls of the cover 51 are formed with engagement holes into which the hinge shafts 21 are engaged at the front end and the rear end respectively and the upper surface of the cover 51 is provided with a rotary member 53 and a locking member 54 511 may be formed.

On both sides of the upper surface of the cover 51, a guide groove 512 for guiding the movement of the moving plate 52 in the forward and backward directions may be formed.

Here, the guide groove 512 may limit the moving distance of the moving plate 52 in the front-rear direction.

The moving plate 52 is formed in a substantially plate shape and is coupled to the lower end of the seat portion 11. [

A plurality of engaging grooves 521 may be formed on one side of the moving plate 52 at predetermined intervals such that engaging protrusions 531 of the rotating member 53 are sequentially engaged.

On both sides of the rear end of the moving plate 52, a guide member can be coupled through the guide groove 512, respectively.

The rotary member 53 is rotatably shaft-coupled to the cover 51, and a plurality of locking projections 531 may be formed on the outer circumferential surface of the rotary member 53.

The locking member 54 is formed in a substantially rectangular parallelepiped shape, and one end of the first latching bar 55 can be coupled to the lower surface of the locking member 54.

The first latching bar 55 serves to transmit the rotational motion of the first rotating cylinder 31 to the locking member 54.

One end of the first latching bar 55 is coupled to the inner end of the first rotating cylinder 31 and the other end of the first latching bar 55 is coupled to the lower surface of the locking member 54. [

A first spring 56 for providing an elastic force to the locking member 54 may be provided between the tip of the installation hole 511 of the cover 51 and the tip of the locking member 54. [

The locking member 54 is moved backward by the elastic force of the first spring 56 to lock the rotary member 53 so as to prevent the rotation of the rotary member 53 and to prevent the rotation of the first engagement bar 55 Thereby releasing the locking so that the rotating member 53 can rotate.

A fixing protrusion may be formed downward on the lower surface of the moving plate 52 and a second spring 57 may be provided between the fixing protrusion and the rear end of the bottom surface of the cover 51 to provide a restoring force to the moving plate 52 .

Therefore, when the user moves the seat portion forward in the unlocked state of the rotary member 52, the movable plate 52 moves forward while elastically deforming the second spring 57 to increase the length thereof. When the operation force of the user is removed, 2 spring 57. In this way,

3, the tilting adjuster 60 includes a second latching bar 61 having one end coupled to an inner end of the first rotating shaft 32, a second latching bar 61 rotatably coupled to the hinge shaft 21, A stopper 62 for locking or releasing the bracket 22 for tilting operation and an elastic spring 63 for providing a restoring force to the stopper 62. [

The height adjusting portion 70 includes a third locking bar 71 which is coupled at one end to the inner end of the second rotating cylinder 41 and a third locking bar 71 which is rotatably coupled to the hinge shaft 21, And a pressing member 72 for pressing the pressing member.

The elastic force adjusting portion 80 includes a spring 81 that provides an elastic force to the tip of the bracket 22, an adjusting shaft 82 that is inserted through the center of the spring 81 and adjusts the length of the spring 81, And a gear unit 83 for transmitting the rotational motion of the rotating shaft 42 to the adjusting shaft 82. [

The gear unit 83 includes a first gear coupled to the tip of the second rotary shaft 42 and a second gear coupled to the tip of the adjustment shaft 82 to be meshed with each other and configured to transmit a rotational force in a perpendicular direction .

Next, a multifunctional assembly according to a preferred embodiment of the present invention and a method of operating a chair having the same will be described in detail.

First, referring to FIG. 5, a method of adjusting the seat forward-backward position of a chair having a multifunctional assembly according to a preferred embodiment of the present invention will be described.

FIG. 5 is an operational state diagram illustrating an operation of adjusting a seat front-rear direction position of a chair having a multifunctional assembly according to a preferred embodiment of the present invention.

When the first control lever 33 is pulled, the first rotating cylinder 31 connected to the first control lever 33 is rotated (rotated) as shown in Fig. 5 while the user is seated in the seat portion 11, And the locking member 54 is moved forward as the first locking bar 55, which is coupled to the first rotating cylinder 31, is rotated.

Then, the rear end of the first locking bar 55 is separated from any one of the plurality of locking projections 531 formed on the rotary member 53 to release the locking state of the rotary member 53, (11) can be moved in the forward and backward directions to adjust the forward and backward positions.

When the user releases the operation of the first control lever 33, the locking member 54 is moved backward by the restoring force of the first spring 56 and the rear end of the first locking bar 55 is rotated 53), and the rotary member (53) is locked.

At this time, due to the restoring force of the second spring 57 provided between the lower surface of the center of the moving plate 52 and the rear end of the cover 51, the moving plate 52 is moved backward to the original position Can be moved.

As described above, according to the present invention, the locking state of the rotary member and the locking member is released through the pulling operation of the first control lever, and the seat portion is moved in the forward and backward directions to adjust the forward and backward positions of the seat portion according to the user's body shape and work environment .

According to the present invention, by releasing the pulling operation of the first control lever, the rotating member and the locking member can be engaged to return to the locked state.

When the tilting angle of the backrest 13 is adjusted, when the user rotates the first gripper member 34 in one direction, the first rotation shaft 32 rotates while being connected to the first gripper bar 55 The stopper 62 rotates about the hinge shaft 21.

Then, the locking state of the bracket 22 is released, and the backrest 13 becomes in a state capable of tilting operation.

When the user releases the turning operation of the first job member 34 after adjusting the tilting angle of the backrest 13, the stopper 62 is returned to its original position by the restoring force of the elastic spring 63, 22).

Next, when the user adjusts the height of the seat portion 11, when the user rotates the second control lever 43, the second rotating cylinder 41 rotates while the pressure member connected through the third holding bar 71 is rotated, (72) presses the opening / closing pin of the cylinder (15) while rotating around the hinge shaft (21).

Then, the closed state of the cylinder 15 is released, and the height of the cylinder 15 can be adjusted.

On the other hand, when the user releases the rotation operation of the second control lever 43 after adjusting the height of the seat portion 11, the pressing member 72 is returned to its original position by the restoring force of the opening / The retracted state is fixed.

When the user rotates the second job member 44 in one direction when the backrest 13 is tilted, the second rotation shaft 42 rotates while the elastic force of the elastic force adjusting unit 80 The adjustment shaft 82 rotates to one side while the unit 83 rotates.

Then, the elasticity of the spring 81 is adjusted by adjusting the length of the spring 81 coupled to the adjustment shaft 82 by the rotation of the adjustment shaft 82.

Through the above-described process, the present invention can adjust the front-rear direction position, the height, the tilting angle of the backrest, and the elastic force of the seat portion through the operation of the first and second control lever portions of the assembly portion.

Although the invention made by the present inventors has been described concretely with reference to the above embodiments, the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

The present invention is applied to a multifunctional assembly for operating the first and second adjustment lever portions of the assembly portion to adjust the forward and backward positions of the seat portion, the height, the tilting angle and the elasticity of the backrest, and the chair technology therefor.

10: Chair 11: Seat
12: leg portion 13: backrest
14: assembly 15: cylinder
20: Body 21: Hinge shaft
22: brackets 30, 40: first and second control lever portions
31, 41: first and second rotating cylinders 32, 42: first and second rotating axes 32,
33, 43: first and second control levers 34, 44: first and second grip members
50: position adjusting portion 51: cover
511: Installation hole 512: Guide groove
52: moving plate 521: engaging groove
53: rotating member 531:
54: locking member 55: first latching bar
56, 57: first and second springs 60:
61: second stop bar 62: stopper
63: Elastic spring 70:
71: third stop bar 72: pressing member
80: elastic force adjusting part 81: spring
82: adjusting shaft 83: gear unit

Claims (10)

A body formed in a hexahedron shape whose upper surface is opened,
A first adjustment lever portion rotatably installed on one side of the body,
A position adjuster hinged on an upper portion of the body and adjusting a position of the seat by moving the seat in a forward and backward direction by a rotation operation of the first adjust lever,
And a tilting control unit for locking or releasing the tilting operation of the backrest and the seat by the rotation of the first control lever unit,
A hinge shaft is installed at the central portion of the body across both side walls,
A bracket is rotatably coupled to the hinge shaft,
Wherein the position adjusting portion is formed in a hexahedron shape having an opened lower surface and a cover for shielding the upper portion of the body and the bracket,
A moving plate slidably disposed on an upper surface of the cover,
A rotary member rotatably installed on an upper surface of the cover,
And a locking member which moves in the forward and backward directions along the installation hole formed in the cover to lock or unlock the rotary member,
And a first latching bar is installed between the first control lever portion and the locking member. The method according to claim 1,
A second adjusting lever portion rotatably installed on the other side of the body,
A height adjuster for locking or releasing a stretching operation of the cylinder provided on the leg portion by the turning operation of the second adjusting lever portion,
Further comprising an elasticity adjusting unit for adjusting the elasticity of the backrest and the seat in a tilting operation of the seat. 3. The apparatus of claim 2, wherein the first and second control lever portions
A first rotating cylinder and a second rotating cylinder provided with a hollow shaft having a space in the center,
And first and second rotation shafts penetratingly inserted into each of the first and second rotating cylinders. delete 3. The method of claim 2,
A plurality of locking projections are formed on the outer circumferential surface of the rotary member,
Wherein the moving plate is formed with a plurality of engaging grooves at predetermined intervals so that the engaging protrusions sequentially engage with each other. 3. The method of claim 2,
A first spring for providing an elastic force to the locking member is provided between the cover and the locking member,
And a second spring is provided between the moving plate and the rear end of the cover to provide a restoring force to the moving plate. 3. The apparatus of claim 2, wherein the tilting adjuster
A second latching bar having one end coupled to the first control lever portion,
A stopper that is rotatably coupled to a hinge shaft that connects the body and the bracket and that locks or releases a bracket that tilts the backrest due to the pulling action of the second latching bar;
And an elastic spring for providing a restoring force to the stopper. 3. The apparatus of claim 2, wherein the height adjuster
A third latching bar having one end coupled to the second control lever portion,
And a pressing member rotatably coupled to the hinge shaft for engaging the body and the bracket and for pressing the opening / closing pin of the cylinder by the pulling action of the third latching bar. [3] The apparatus of claim 2,
A spring for providing an elastic force to the tip of the bracket,
An adjustment shaft penetratingly connected to the center of the spring and adjusting the length of the spring by rotational movement,
And a gear unit for transmitting the rotational movement of the second control lever portion to the adjustment shaft. A multifunctional assembly as claimed in any one of claims 2, 3 and 5 to 9,
Wherein the multifunctional assembly is used to adjust the forward and backward position and height of the seat portion and adjust the tilting angle and the elastic force of the backrest.

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