KR101558413B1 - Titing device of chair - Google Patents

Abstract

According to the present invention, a tilting device for a chair comprises: a base unit; a seating unit rotating with respect to an upper portion of the base unit by a seesaw method or of which one side is rotated based on the other side; and a back rest unit supported by the base unit to be linked with the seating unit to be rotated forward and downward. The present invention performs a seesaw motion, wherein one side and the other side of the seating unit are rotated in an opposite direction to each other through a rotating means mutually hinged with a center of the base unit and the seating unit or rotates one side based on the other side. The seating unit and one side of the back rest unit come in contact with each other to be linked with each other to perform descending movement through the descending means where the lower portion of the seating unit and the upper portion of the back rest unit are installed. Moreover, the present invention performs the forward movement while the back rest unit is guided by the base unit through the advancing means connecting the base unit and the back rest unit, and the seesaw motion and rotation and the descending movement and the advancing movement are simultaneously and continuously performed.

Description

Titing device of chair

The present invention relates to a chair tilting apparatus, and more particularly, to a chair tilting apparatus which is capable of stabilizing a spinal column by supporting a lumbar vertebrae in a posture deformation by rotating the back plate toward the center of a hip joint of a seated person, The present invention relates to a tilting apparatus for a chair.

Generally, the chair includes a seat plate for supporting the user's buttocks, a back plate for supporting the back of the user, and a base for supporting the seat plate and the back plate.

In addition, a number of techniques have been developed to tilt the back plate so that the back plate is tilted backward when the back of the back is tilted by the user, and techniques for tilting the back plate and the back plate together so as not to give a load to the user's spine have been developed at various angles State. Further, when the inclination angle of the back plate and the seat plate are made the same, the inclination angle of the seat plate becomes larger as the inclination angle of the back plate becomes larger. Therefore, there is a problem that the user's foot falls from the ground. This is also being developed.

Among them, the technique of tilting the back plate and the seat plate together can reduce the load on the user's spine, and the usability thereof is increasing.

The conventional tilting devices for tilting the back plate and the seat plate will be described as follows.

First, the tilting apparatus of the first prior art has a feature that the center of rotation of the back plate is positioned below the seat or behind the seat instead of the hip of the user. However, during the rotation of the back plate, the user's back moves, and the user's hip moves forward. This causes the user's lumbar backward retraction. If this phenomenon persists, lumbar spine may be induced.

In addition, the tilting device of the second prior art is characterized in that a separate lumbar support is further provided in the first prior art.

That is, in the second conventional technique, the lumbar support is not rotated while the back plate is rotated, or the rotation amount of the lumbar support is made smaller than the rotation amount of the back plate.

However, during the rotation of the back plate, the lumbar support causes the lumbar spine to bulge forward, and if this phenomenon continues, the lumbar spine may be induced.

Further, since a separate lumbar support is required, the configuration can be troublesome, and a cost due to the lumbar support is additionally generated.

In addition, the tilting device of the third prior art has a feature that a separate joint structure is provided on the seat (in particular, provided on the arm support) together with tilting structures mounted on the base, to match the user's hip joint. However, since the joint structure is exposed to the outside, the appearance of the chair may be bad, and there may be a disadvantage that the joint structure can be installed only when the arm support is provided.

Further, since the joint structure is installed on the arm support, the tilting apparatus can not be directly applied to the existing chair (i.e., the arm support can not be directly applied to the chair without the arm support, (Or can not be applied directly to the chair because it requires a separate coupling part on the arm support), and if the device fails, the joint configuration mounted on the arm support, rather than just the base, must be replaced, This can be troublesome. Therefore, the necessity of modularization based on the base is required.

Korean Patent Publication No. 20-2011-0000141 (2011.01.06) Korean Patent Publication No. 10-2008-0104784 (December 3, 2008)

In the chair tilting apparatus of the present invention as described above, the center of rotation of the back plate can be operated on the basis of the hip joint of the seated person, and the back plate can be supported by the back plate, So that it is possible to stabilize the structure.

In the tilting apparatus of the present invention, the seating portion that rotates in conjunction with the back plate portion is rotated by the seesaw operation so that the rotation range of the seating portion is reduced and the back plate portion is rotated downward at the best range angle to minimize the variation of the height position of the seated person. To stabilize the gaze of the person.

In addition, the chair tilting apparatus of the present invention simplifies the coupling of the back plate to improve the ease of assembly while minimizing the parts of the chair tilting apparatus.

According to an aspect of the present invention, there is provided a chair tilting apparatus including a base, a seating portion rotatably mounted on the base portion in a seesaw manner, And a lowering means provided on the lower portion of the seatback portion and on the upper portion of the backboard portion to perform a seesaw operation in which one side and the other side of the seating portion are rotated in mutually opposite directions through a rotating means formed by hinge- And the back plate is guided by the base portion through the advancing means for connecting the base portion and the back plate portion to perform the forward operation, and the seesaw portion and the back plate portion are moved forward and backward, The operation and the advancing operation are performed simultaneously and continuously.

 The tilting apparatus of the present invention includes a base portion, a seating portion connected to the upper hinge portion of the base portion to rotate the other side relative to the one side, a back plate supported by the base portion, And the other side rotates with respect to one side of the seat based on the base and the pivoting means hinged to one side of the seat, and the lower part of the seating part and the lower part provided on the upper part of the back plate, And the back plate is guided by the base portion through the forward means connecting the base portion and the back plate portion to perform the advancing operation while the pivoting operation, And is performed continuously at the same time.

According to the present invention, the pivoting means is coupled by pivoting a center shaft after superimposing a bracket provided at the center of the facing surface of the seating portion and the base portion.

According to the present invention, the pivoting means is coupled by pivoting a center shaft after superimposing brackets provided on one side of the facing surface of the seating portion and the base portion.

According to the present invention, the lowering means comprises a first curved surface having a curvature provided on the lower portion of the seating portion, and a second curved surface provided on the upper surface of the backing plate so as to have a curvature and in surface contact with the first curved surface, And the lowering operation of the seating portion and the back plate is performed.

According to the present invention, the lowering means comprises a first curved surface having a curvature provided on the lower portion of the seating portion, and a second curved surface provided on the upper surface of the backing plate so as to have a curvature and in surface contact with the first curved surface, And the lowering operation of the back plate portion is performed.

According to the present invention, the advancing means comprises a first advancing means and a second advancing means for guiding the movement of the back plate from the base, wherein the first advancing means is provided with a first guide member on the base portion, And the second advancing means is provided with a second guide member at the rear of the first guide member of the base so that the second guide member can be guided by the first guide member, And the second guide hole is guided to the second guide member by being engaged with the second guide hole formed to have a curvature behind the first guide hole.

According to the present invention, the advancing means comprises a first advancing means and a second advancing means for guiding the movement of the back plate from the base, wherein the first advancing means is provided with a first guide member on the base portion, And the second advancing means is provided with a second guide member at the rear of the first guide member of the base so that the second guide member can be guided by the first guide member, And the second guide hole is guided to the second guide member by being engaged with the second guide hole formed to have a curvature behind the first guide hole.

According to the present invention, a moving hole is formed on the first curved surface of the descending means, and the holding pin formed on the second curved surface is engaged with the holding pin, so that the holding pin is inserted through the moving hole.

According to the present invention, the back plate portion is composed of a connecting member, a pair of fixing members respectively coupled to both side surfaces of the connection member, and a back plate member which is coupled to the pair of fixing members so as to face each other, Thereby forming the second curved surface.

According to the present invention, the back plate portion comprises a connecting member, a pair of fixing members respectively coupled to both side surfaces of the connection member, and a back plate member which is coupled to the pair of fixing members so as to face each other, The first guide hole and the second guide hole are formed on the side surface.

The chair tilting apparatus of the present invention as described above has a base portion, a seating portion on the upper side of the base portion in which the other side rotates with respect to a seesaw system or one side, and a seat portion supported by the base portion, The base and the seating portion are hingedly connected to each other by means of a hinge means connected to the center of the seating portion to perform a seesaw operation in which one side and the other side of the seating portion are rotated in opposite directions or the other side is rotated on the basis of one side, The lower portion and the upper portion of the backing plate are connected to each other by the lowering means and the backing plate and the backing plate are in surface contact with each other to perform the lowering operation and the backing plate is guided by the base portion through the advancing means for connecting the base and the backing plate The seesaw operation, the turning operation, the descending operation and the advancing operation are performed simultaneously at the same time To the back panel and the rotation center portion can be positioned on the hip of the seated person, as additional rotation starts through the addition it starts operation to move downwardly to allow the spine to batchyeojul posture modification has the effect sought to stabilize the spine.

In the tilting apparatus of the present invention, the seating portion that rotates in conjunction with the back plate portion is rotated by the seesaw operation so that the rotation range of the seating portion is reduced and the back plate portion is rotated downward at the best range angle to minimize the variation of the height position of the seated person. So that it is possible to stabilize the gaze of the person.

In addition, the chair tilting apparatus of the present invention has an effect of improving the ease of assembly while minimizing the parts of the chair tilting apparatus by simplifying the coupling of the back plate.

1 is an exploded perspective view showing a first embodiment of a chair tilting apparatus of the present invention.
2 is an exploded front view showing a first embodiment of a chair tilting apparatus of the present invention.
Fig. 3 is a front view showing the first embodiment of the chair tilting apparatus of the present invention. Fig.
Fig. 4 is a front view showing a state before the operation of the first embodiment of the chair tilting apparatus of the present invention. Fig.
Fig. 5 is a front view showing the state after the operation of the first embodiment of the chair tilting apparatus of the present invention. Fig.
FIG. 6 is an exploded perspective view showing a first embodiment of a tilting apparatus according to the present invention; FIG.
7 is an exploded perspective view showing a second embodiment of a chair tilting apparatus of the present invention.
8 is an exploded front view showing a second embodiment of a chair tilting apparatus of the present invention.
Fig. 9 is a front view showing the second embodiment of the chair tilting apparatus of the present invention. Fig.
Fig. 10 is a front view showing the use state of the second embodiment of the chair tilting apparatus of the present invention. Fig.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, in the drawings, it is noted that the same components or parts are denoted by the same reference numerals as possible. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

FIG. 1 is an exploded perspective view of a chair tilting apparatus according to the present invention, FIG. 2 is an exploded front view showing a chair tilting apparatus of the present invention, FIG. 3 is a front elevational view showing a chair tilting apparatus of the present invention, FIG. 5 is a front view showing a state after the operation of the chair's tilting apparatus according to the present invention, and FIG. 6 is a view showing the back plate of the chair's tilting apparatus according to the present invention FIG. 7 is an exploded perspective view showing a second embodiment of a chair tilting apparatus of the present invention, FIG. 8 is an exploded front view showing a second embodiment of a chair tilting apparatus of the present invention, Fig. 6 is a front view showing the second embodiment of the tilting apparatus of the chair of the present invention.

1 to 9, the first and second embodiments of the chair tilting apparatus 10 of the present invention include a base unit 100, a seating unit 200, and a back plate unit 300.

The first embodiment includes a base portion 100, a seating portion 200 that rotates in a seesaw manner on the upper portion of the base portion 100, and a backrest portion 300 supported by the base portion 100 and moving forward and downward in cooperation with the seating portion 200 And one side and the other side of the seating unit 200 perform a seesearch operation in opposite directions through the rotation unit 400 that is hinged to the base of the seating unit 200 by mutual hinging, and the lower part of the seating unit 200 and the upper side of the back plate unit 300 The backboard 300 is connected to the base 100 through the advancing means 600 connecting the base 100 and the backboard 300. [ The descent operation and the advancing operation are performed simultaneously at the same time.

The second embodiment includes a base part 100, a seating part 200 coupled to the upper part of the base part 100 to rotate on the other side of the base part 100, and a seat part 200 supported by the base part 100, And a back plate 300. The other side of the base 200 rotates with respect to one side of the seating unit 200 through a rotating unit 400 hinged to one side of the seating unit 200. The lower portion of the seating unit 200 and the back plate 300 And the back plate 300 is connected to the back plate 300 through the advancing means 600 connecting the base 100 and the back plate 300. [ The swinging operation, the descending operation and the advancing operation are simultaneously performed continuously under the guidance of the base unit 100. [

That is, in the first embodiment, the base unit 100 is provided with the rotation unit 400 at the center of the seating unit 200, and one side and the other side of the seating unit 200 perform a seesection operation in the opposite direction with respect to the rotation unit 400.

In the second embodiment, the turning unit 400 is provided on one side of the seating unit 200 and the base unit 100, and the other side of the seating unit 200 is rotated on the basis of the turning unit 400.

The base 100 is fixed to the upper portion of the supporting means 101 provided with a leg leg (not shown) at the bottom.

The base 100 is provided with an elastic member (not shown) for imparting a tension in accordance with a backrest angle change of the back plate 300 and an apparatus (not shown) for controlling the tension of the elastic member and the rotation angle of the back plate 300.

The seating unit 200 has a function of allowing the seat of the seated person to sit. The seating unit 200 of the first embodiment performs a seesait operation, and the seating unit 200 of the second embodiment performs a rotation operation.

The specific composition is as follows.

The chair's tilting apparatus 10 is operated by interlocking the backboard 300 and the seating unit 200 with respect to the base 100.

That is, the seating unit 200 is supported by the base unit 100 to perform a seesaw operation or a rotation operation, and the backboard unit 300 interlocks with the downward and forward operation.

The structure for enabling the interlocking operation of the seating unit 200, the back plate unit 300, and the base unit 100 can be implemented through the rotation unit 400, the lowering unit 500, and the advancing unit 600.

The pivoting means 400 of the first embodiment is hinged to the center of the base and the seating unit 200 to perform a seesaw operation in which one side and the other side of the seating unit 200 are rotated in opposite directions.

The turning unit 400 of the second embodiment is hinged to the upper portion of the base unit 100 to perform a turning operation in which the other side rotates with respect to one side of the seating unit 200. [

In the descending unit 500, the upper and lower faces of the seating unit 200 and the back plate 300 face each other, and the other side of the seating unit 200 performs a lowering operation while the seating unit 200 slides on the back plate 300.

In addition, the advancing means 600 performs the advancing operation to the front side of the base 100 with the back plate 300 being guided by the base 100.

The seesawing operation or the turning operation and the descending operation of the seating unit 200 and the advancing operation of the backing plate unit 300 are continuously performed through the rotating unit 400, the descending unit 500 and the advancing unit 600 as described above to perform the tilting operation of the chair.

Accordingly, the rotation of the back plate 300 can be positioned at the center of the hip joint of the seated person, so that the back plate 300 can be moved downward to be supported by the back plate 300 while stabilizing the vertebrae .

Specifically, the pivoting means 400 of the first embodiment superposes the bracket 410 installed at the center of the upper and lower sides facing the seating portion 200 and the base portion 100, passes through the central shaft 420, 200 and one side and the other side are operated in a reverse direction with respect to the center.

When the seat occupant sits at the seat back 200 and moves the center of gravity by leaning against the back, the seating unit 200 performs a turning operation in which the other side of the seating unit 200 rotates downward with respect to the turning unit 400, I think.

Alternatively, the rotating unit 400 of the second embodiment overlaps the bracket 410 installed on the upper and lower sides of the seating unit 200 facing the base unit 100, passes through the center shaft 420, rotates the base unit 100 through the rotation unit 400, So that the other side rotates relative to the other side.

When the seat occupant sits on the chair and performs a tilting operation, the seating portion 200 is rotated in the opposite direction to the back portion 300 with the best range angle, So as to stabilize the gaze of the seated person by minimizing the height change of the seated person.

In addition, the lowering means 500 forms a first curved surface 510 having a curved downward curvature on the lower surface of the seating portion 200, and on the upper surface of the backboard 300, concave So that the second curved surface 520 is slidable in surface contact with the first curved surface 510.

That is, the center of rotation of the curvature of the contact surface between the first curved surface 510 and the second curved surface 520 is centered on the hip joint.

Particularly, a moving hole 511 having the same curvature is formed on the upper portion of the first curved surface 510, and the releasing preventing member 521 provided on the upper portion of the second curved surface 520 is engaged with the engaging pin 522, 200 and the back plate 300 are maintained.

In addition, the advancing means 600 is provided with a first advancing means 600a and a second advancing means 600b for guiding the back plate 300 forward in the base portion 100. [

That is, the first advancing means 600a includes a first guide member 630 on both sides of the central portion of the base portion 100. [

The first guide member 630 is coupled to the first guide hole 610 formed in the back plate 300.

The second advancing means 600b includes a second guide member 640 disposed behind the first guide member 630 and a second guide hole 620 disposed behind the first guide hole 610 of the back plate 300, The second guide member 640 is engaged with the second guide member 610.

Here, the first guide member 630 and the second guide member 640 can be applied as rolling rollers or bushes that are frictionally slid in point contact.

Here, the specific coupling structure of the back plate 300 for coupling the first advancing means 600a and the second advancing means 600b is as follows.

The back plate 300 includes a connecting member 310, a fixing member 320, and a back plate member 330.

The connecting member 310 is connected to a back (not shown) that supports the back of the seated person.

The fixing member 320 is installed on both sides of the connecting member 310.

In addition, a backboard member 330 is connected to the fixing member 320 in the same direction so that a pair of backboard members 330 can be installed facing each other

Here, a coupling groove 321 is formed on the outer surface of the back plate member 330 so that the fixing member 320 is first coupled to the coupling groove 321, and then fixed through the coupling means 322.

The backboard part 300 can be easily coupled to the base part 100 through the backboard part 300 having the above-described configuration, thereby improving the ease of assembly.

Here, a second curved surface 520 of the lowering means 500 is formed on the upper surface of the backing plate 330, and a first guide hole 610 and a second guide hole 620 of the advancing means 600 are formed on the inner surface of the facing backing plate 330, The first curved surface 510 of the part 200 and the first guide member 630 of the base part 100 and the second guide member 640 are engaged with each other.

As a means for maintaining the engaged state of the seating part 200 and the back plate 300 mentioned above, a moving hole 511 having the same curvature is formed on the first curved surface 510, The release preventing member 521 is engaged with the engaging pin 522 so as to pass through the moving hole 511 to maintain the engaged state of the seating portion 200 and the back plate portion 300.

The center of rotation of the back plate 300 can be positioned at the hip joint of the seated person through the tilting apparatus 10 having the above-described structure, and the back plate 300 is rotated through the backward advancing movement of the back plate 300, It is effective to stabilize the vertebrae in deformation.

In addition, the seating portion 200, which rotates in conjunction with the back plate 300, is rotated by a seesaw operation so that the rotation range of the seating portion 200 is reduced and the back plate 300 is rotated downward at the best range angle to minimize the variation of the height of the seated person. So that it is possible to stabilize the gaze of the person.

Further, the coupling of the back plate 300 is simplified, and the ease of assembly is improved while minimizing the parts of the chair tilting apparatus 10. [

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be clear to those who have knowledge of.

10: Chair's tilting device 100: Base
101: Support means 200:
300: back plate 310: connecting member
320: fixing member 321: engaging groove
322: fastening means 330: back plate member
400: rotating means 410: bracket
420: center shaft 500: descending means
510: 1st curved surface 511: Moving ball
520: 2nd curved surface 521:
522: latching pin 600: forwarding means
600a: first advancing means 600b: second advancing means
610: first guide ball 620: second guide ball
630: first guide member 640: second guide member

Claims (11)

A base portion,
A seating portion for pivotally rotating the base portion in a seesaw manner,
And a back plate portion supported by the base portion and rotating forward and downward in cooperation with the seating portion
Wherein one side and the other side of the seating portion perform a seesaw operation in mutually opposite directions through a rotating means which is hingedly connected to the center of the base and the seating portion,
The lower portion of the seating portion and the lowering means provided on the upper portion of the backing plate interlock with one side of the seating portion and the backing plate to perform a lowering operation,
The back plate is guided by the base portion through the advancing means connecting the base portion and the back plate portion,
The seesearch operation, the descending operation and the forward operation are performed simultaneously and continuously,
Wherein the advancing means comprises a first advancing means and a second advancing means for guiding the movement of the back plate from the base and the first advancing means is provided with a first guiding member on the base portion, The first guide member is coupled to the first guide hole so that the first guide hole of the back plate is guided by the first guide member and the second advancing means is provided with a second guide member behind the first guide member of the base, And the second guide hole is coupled to a second guide hole formed to have a curvature in the rear direction so that the second guide hole is guided by the second guide member.
A base portion,
A seating part connected to the upper hinge part of the base part and rotated on the other side with respect to one side,
And a back plate portion supported by the base portion and rotating forward and downward in cooperation with the seating portion
The other side performs a turning operation with respect to one side of the seating portion through a rotating means which is hingedly connected to one side of the base and the seating portion,
The lower portion of the seating portion and the lowering means provided on the upper portion of the backing plate interlock with one side of the seating portion and the backing plate to perform a lowering operation,
The back plate is guided by the base portion through the advancing means connecting the base portion and the back plate portion,
The rotating operation, the descending operation and the advancing operation are simultaneously and continuously performed,
Wherein the advancing means comprises a first advancing means and a second advancing means for guiding the movement of the back plate from the base and the first advancing means is provided with a first guiding member on the base portion, The first guide member is coupled to the first guide hole so that the first guide hole of the back plate is guided by the first guide member and the second advancing means is provided with a second guide member behind the first guide member of the base, And the second guide hole is coupled to a second guide hole formed to have a curvature in the rear direction so that the second guide hole is guided by the second guide member.
The method according to claim 1,
Wherein the pivoting means is coupled to the chair by pivoting a bracket provided at the center of the facing surface of the seating portion and the base portion, and then passing the bracket through the central shaft.
3. The method of claim 2,
Wherein the pivoting means is coupled to the chair by pivoting a bracket provided on one side of the facing surface of the seating portion and the base portion, respectively, and then passing the bracket through the central shaft.
The method according to claim 1,
Wherein the lowering means comprises:
A first curved surface having a curvature provided at a lower portion of the seating portion,
And a second curved surface provided on the upper portion of the back plate to have a curvature and in surface contact with the first curved surface
And a lowering operation of the seating portion and the back plate is performed.
3. The method of claim 2,
Wherein the lowering means comprises:
A first curved surface having a curvature provided at a lower portion of the seating portion,
And a second curved surface provided on the upper portion of the back plate to have a curvature and in surface contact with the first curved surface
And a lowering operation of the seating portion and the back plate is performed.
delete delete The method according to claim 5 or 6,
A moving hole is formed on the first curved surface of the lowering means,
And the locking pin is coupled to the release preventing member formed on the second curved surface so that the locking pin is inserted through the moving hole.
The method according to claim 5 or 6,
The back-
A connecting member,
A pair of fixing members respectively coupled to both side surfaces of the connecting member,
And a back plate member coupled to the pair of fixing members so as to face each other,
And a second curved surface is formed on an upper surface of the backing plate member.
3. The method according to claim 1 or 2,
The back-
A connecting member,
A pair of fixing members respectively coupled to both side surfaces of the connecting member,
And a back plate member coupled to the pair of fixing members so as to face each other,
Wherein a first guide hole and a second guide hole are formed on an inner surface of the back plate member.

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