KR101656003B1 - Titing device of chair - Google Patents

Titing device of chair Download PDF

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Publication number
KR101656003B1
KR101656003B1 KR1020150020689A KR20150020689A KR101656003B1 KR 101656003 B1 KR101656003 B1 KR 101656003B1 KR 1020150020689 A KR1020150020689 A KR 1020150020689A KR 20150020689 A KR20150020689 A KR 20150020689A KR 101656003 B1 KR101656003 B1 KR 101656003B1
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KR
South Korea
Prior art keywords
back plate
base portion
downward
guide
guide member
Prior art date
Application number
KR1020150020689A
Other languages
Korean (ko)
Other versions
KR20160099134A (en
Inventor
김사엽
정경렬
형준호
노종련
Original Assignee
한국생산기술연구원
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Application filed by 한국생산기술연구원 filed Critical 한국생산기술연구원
Priority to KR1020150020689A priority Critical patent/KR101656003B1/en
Priority to PCT/KR2015/004223 priority patent/WO2015167205A1/en
Publication of KR20160099134A publication Critical patent/KR20160099134A/en
Application granted granted Critical
Publication of KR101656003B1 publication Critical patent/KR101656003B1/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

The chair tilting apparatus of the present invention comprises a base portion, a seating portion hingedly connected to the base portion and pivoting rearward with respect to the front side, and a back plate portion guided by the base portion and rotating downwardly in association with the seating portion The back portion performs a backward movement based on the front of the seating portion through the rotating means hinged to the front of the base portion and the seating portion and receives the guide of the base portion through the downward turning means connecting the base portion and the back plate portion When the downward tilting operation is performed by interlocking the seating portion and the back plate in the base portion through the linear movement means provided between the seating portion and the back plate, the linear movement means is supported on the back plate, And the downward turning operation and the linear movement operation are performed at the same time in succession Is performed.

Description

Titing device for chair

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilting apparatus for a chair, and more particularly, to a chair tilting apparatus in which a back plate rotates around a center of a hip of a seated person to support a lumbar vertebrae in pursuit of stabilization of a vertebra.

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.

Accordingly, a number of techniques have been developed for tilting the back plate so that the back plate is tilted backward when the back of the back is tilted by the user. Techniques for tilting the back plate and the back plate together so that the user does not place the back of the back is also developed at various angles .

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

First, the tilting device of the prior art is characterized in that the center of rotation of the back plate is located below the seat or behind the seat, rather than 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.

The above-described phenomenon has a problem in that the user's lumbar vertebrae can cause lumbar laxity when being retracted backward.

Alternatively, in the prior art tilting apparatus, the lumbar support is prevented from rotating while the back plate is rotated, or the rotation amount of the lumbar support is smaller than the rotation amount of the back plate.

In this case, while the back plate is rotated, the lumbar support causes the user's lumbar spine to bulge and cause a problem of lumbar vertebrae.

A separate lumbar support is required to solve the problems of the related art, which leads to a complicated structure and increases manufacturing cost.

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

In the tilting apparatus for a chair according to 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 for a chair according to the present invention, the seated part rotating in conjunction with the back plate is rotated by the seesaw operation so that the rotation range of the seating part is reduced and the back plate is rotated downward at the best range angle, To stabilize the gaze of the person.

In addition, according to the tilting apparatus of the present invention, the structure for realizing the mechanical interlocking operation between the seating portion and the back plate can be simplified as much as possible according to the moving distance and the turning angle of the back plate moving downward in the base through the linear moving means .

The tilting device for a chair according to the present invention is configured to minimize the frictional force during the interlocking operation between the backboard and the seatback portion so that the interlocking operation of the seatback portion operated by the backboarding portion is driven to the minimum operating range, So that the interlocking operation of the seating part is not interfered or an error of the mechanical operation is not caused.

According to another aspect of the present invention, there is provided a chair tilting apparatus comprising: a base; a seating unit hinged to the base and rotated rearward with respect to the front; The base and the backrest are connected to each other by a hinge connected to the front of the base and the backrest, and a downward turning means is provided for connecting the base and the backrest When the downward tilting operation is performed in conjunction with the seating portion and the back plate in the base through the linear movement means provided between the seating portion and the back plate, And is supported by the back plate so as to linearly move forward in the seating part to perform the turning operation and the downward turning operation, Line movement operation is performed in a row at the same time.

According to the present invention, the pivoting means forms a through hole in front of the base and the seating portion, respectively, and then engages the central shaft with the through-hole communicated by the engagement of the base and the seating portion.

According to the present invention, the downward turning means comprises a first downward turning means and a second downward turning means for guiding the downward turning operation of the back plate portion in the base, wherein the first downward turning means includes: 1 guide member is coupled to the first guide hole having a curvature in the base portion and the second downward turning means is provided with a second guide member behind the first guide member of the back plate portion, And the first guide member and the second guide member of the back plate are guided to the first guide hole and the second guide hole of the base so as to be rotated downward.

According to the present invention, the downward turning means is provided with a first downward turning means and a second downward turning means for guiding downward turning operation of the back plate in the base, 1 guide member is coupled to the first guide hole having a curvature in the back plate portion and the second downward turning means is provided with a second guide member at the rear of the first guide member of the base, And the first guide member and the second guide member of the base portion are guided and rotated downward in the first guide hole and the second guide hole of the back plate portion.

According to the present invention, the linear movement means includes a base block coupled to a fixed shaft provided on a back plate provided on a base, and a base block coupled to a bracket having a movement passage at a lower portion of the seating portion, It is installed movably in the passage.

According to the present invention, the back plate has a pair of opposing fixing surfaces formed by vertically bending both sides of a joining member disposed horizontally and extending frontward to form a pair of first Thereby forming a guide member and a second guide member, respectively.

According to the present invention, the base is formed with a pair of support walls vertically bent at both sides of the horizontally disposed bottom surface, and a pair of first guide holes and second guide holes are formed on both sides of the support wall .

According to the present invention, the back plate has a pair of opposing fixing surfaces formed by vertically bending both sides of a joining member disposed horizontally and extending frontward to form a pair of first Thereby forming a guide hole and a second guide hole, respectively.

According to the present invention, the base includes a pair of support walls vertically bent at both sides of the horizontally disposed bottom surface, and a pair of first guide members and second guide members are formed on both sides of the support wall do.

According to the present invention, the rectilinear block is provided with a fixing hole at the rear, and the fixing shaft is coupled to the fixing block so that the rectilinear block can be interlocked with the backing plate.

According to the present invention, the straight block is formed with a fixing hole whose one side is open at the rear, and the fixing shaft is coupled to the fixing hole, and an elastic member is provided inside the moving passage so that the straight block is elastically contacted So that the fixed shaft can be prevented from departing from the opened fixed hole.

The chair tilting apparatus of the present invention as described above has a base portion, a seating portion hingedly connected to the base portion and rotated rearward with respect to the front, and a lower portion which is guided by the base portion, The backrest is pivotally moved rearward relative to the front of the seating unit through the pivotal means hinged to the front of the seating unit by the base and the downward pivoting means connecting the base unit and the backrest unit, When the downward tilting operation is performed by interlocking the seating portion and the back plate in the base through the linear movement means provided between the seating portion and the back plate, the linear movement means is supported on the back plate So that the turning operation and the downward turning operation and the linear movement operation are performed in the same direction So that the center of rotation of the back plate can be positioned at the hip joint of the seated person and the back plate can be supported by rotating the back plate through the downward advancing movement of the back plate to stabilize the vertebrae against posture deformation have.

In the chair tilting apparatus according to the present invention, the rear portion of the seating portion interlocked with the backboard portion is rotated so that the backrest portion is rotated forward downward at the best range angle while minimizing the variation in height of the seated person, It is possible to stabilize the operation of the apparatus.

In addition, according to the tilting apparatus of the present invention, the structure for realizing the mechanical interlocking operation between the seating portion and the back plate can be simplified as much as possible according to the moving distance and the turning angle of the back plate moving downward in the base through the linear moving means have.

The tilting device for a chair according to the present invention is configured to minimize the frictional force during the interlocking operation between the backboard and the seatback portion so that the interlocking operation of the seatback portion operated by the backboarding portion is driven to the minimum operating range, There is an effect that the interlocking operation of the seating part is not interfered or an error of the mechanical operation is not caused.

1 is an exploded perspective view showing a chair tilting apparatus of the present invention.
2 is an exploded bottom perspective view showing a chair tilting apparatus according to the present invention;
3 is an exploded front view showing the chair tilting apparatus of the present invention.
Fig. 4 is a front view showing the tilting apparatus for a chair according to the present invention
5 is an exploded front view showing another embodiment of the chair tilting apparatus of the present invention
6 is a state diagram schematically showing a state before driving of the chair tilting apparatus of the present invention.
7 is a state diagram schematically showing a post-driving state of a chair tilting apparatus according to the present invention.
8A and 8B are front views showing a driving state of the chair tilting apparatus according to the present invention in a seating state.
9 is a cross-sectional view taken along line AA of the tilting apparatus for a chair according to the present invention.
10 is an exploded perspective view showing another embodiment of the downward turning means of the chair tilting apparatus of the present invention.

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 showing a chair tilting apparatus according to the present invention, FIG. 2 is an exploded bottom perspective view showing a chair tilting apparatus according to the present invention, FIG. 3 is an exploded front view showing a chair tilting apparatus according to the present invention, 5 is an exploded front view showing another embodiment of the chair tilting apparatus of the present invention, and FIG. 6 is a front view of the chair prior to the chair tilting apparatus according to the present invention, 7A and 7B are schematic diagrams showing a post-driving state of the chair tilting apparatus according to the present invention, and Figs. 8A and 8B are diagrams showing driving states of the chair tilting apparatus according to the present invention in a seating state Fig. 9 is a cross-sectional view taken along line AA of the tilting apparatus for a chair according to the present invention.

1 to 10, a chair tilting apparatus 10 according to the present invention includes a base unit 100, a seating unit 200, and a back plate unit 300.

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

The seating portion 200 is hinged to the base portion 100 to perform a rearward rotation operation with respect to the front.

The backboard part 300 is guided by the base part 100 and performs a downward turning operation in conjunction with the seating part 200.

The base unit 100 and the seating unit 200 configured as described above are coupled to each other by the rotation unit 400. [

That is, the backward movement is performed based on the front of the seating unit 200 through the rotation unit 400, which is hingedly connected to the front of the base unit 100 and the seating unit 200.

Further, the base 100 and the back plate 300 are coupled to each other by the downward turning means 500.

That is, the back plate 300 is guided by the base 100 through the downward turning means 500 connecting the base 100 and the back plate 300, and performs a downward turning operation forward.

The seating portion 200 and the back plate portion 300 are coupled to each other by the linear moving means 600.

That is, when the seating portion 200 and the backboard 300 are interlocked and the downward turning operation is performed in the base portion 100 through the linear moving means 600 provided between the seating portion 200 and the backboard portion 300, And performs a linear movement operation in a forward direction in the seating unit 200. [

Here, the above-mentioned distinction between the front and rear is defined by the position where the backrest is installed with respect to the backboard 300, and the opposite direction is defined as the front.

In other words, when the user tilts back against the backrest while the user is seated in the chair, the backing plate 300 and the seating unit 200 are rotated and moved downward with respect to the base 100, Are simultaneously and continuously performed so as to perform the tilting operation of the chair.

Thus, 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 rotated downward to forwardly support the back plate 300 while the back plate 300 is rotated to stabilize the vertebrae .

The specific configuration of the chair tilting apparatus 10 of the present invention is as follows.

The pivoting means 400 has a through hole formed in front of the base portion 100 and the seating portion 200, and then a center shaft is coupled to the through hole communicated by the coupling of the base portion 100 and the seating portion 200, The backward movement is performed based on the reference.

Here, the base part 100 is formed with supporting walls 110 standing upright on both sides, and the front of the bracket 610 formed at the lower part of the seating part 200 is coupled to the front of the inner surface of the supporting wall 110.

A through hole is formed at one side of the support wall 110 and the bracket 610 so that the through hole is communicated with the base part 100 and the seating part 200, and the center shaft is coupled therethrough.

When the seat occupant sits at the seat back 200 and moves the center of gravity while leaning against the back, the sitting part 200 performs a turning operation of rotating the seat back 200 downward with respect to the turning unit 400, do.

The downward turning means 500 includes a first downward turning means 510 and a second downward turning means 500 for guiding the downward turning operation of the back plate 300 in the base portion 100.

The first downward turning means 510 couples the first guide member 511 provided in the back plate 300 to the first guide hole 512 having a curvature in the base portion 100.

The second downward rotation unit 500 includes a second guide member 521 disposed behind the first guide member 511 of the back plate unit 300, and a second guide member 521 disposed on the rear side of the first guide hole 512 of the base unit 100, And is coupled to the guide ball 522.

The first guide member 511 and the second guide member 521 of the back plate 300 are guided to the first guide hole 512 and the second guide hole 522 of the base unit 100 so as to be rotated downward.

That is, the back plate 300 is formed by vertically bending both sides of the joint member 310 disposed horizontally and forming a pair of opposing fixing surfaces 320 extending forward from each other, The first guide member 511 and the second guide member 521 are formed.

The base part 100 includes a pair of support walls 110 formed by vertically bending both sides of a bottom surface 120 disposed horizontally so that a pair of first guide holes 512 and second guide holes Respectively.

In other words, the back plate 300 is vertically erected on both sides of the joining member 310 disposed horizontally, and a fixing surface 320 is formed facing the pair of joining members 300.

The pair of first guiding members 511 and the second guiding members 521 are installed on the inner surface of the fixing surface 320, respectively.

The base portion 100 is formed with a pair of first guide holes 512 and second guide holes 52 on the outer surface of the support wall 110 formed on both sides of the bottom surface 120 in a groove shape.

Particularly, the first guide member 511 is formed on the inner side of the fixing surface 320 of the back plate 300, and the second guide member 521 is formed on the inner center of the fixing surface 320 of the back plate 300.

In addition, the first guide hole 512 is formed at the center of the support wall 110 of the base part 100, and the second guide hole 522 is formed at the rear of the base part 100 support wall 110.

Here, the first guide member 511 and the second guide member 521 may be applied as a roller or a roller or a bush or a bearing that slides and rubs in point contact.

When the seat occupant sits down on the backrest and moves the center of gravity through the downward turning means 500 configured as described above, the first guide member 511 and the second guide member 521 of the back plate 300 coupled with the backrest And is guided by the first guide hole 512 and the second guide hole 522 having a curvature, respectively, and is rotated downward toward the front of the chair.

At this time, the back plate 300 is rotated downward toward the front of the chair while being in alignment with the center of the hip joint of the seated person, so that the backrest interlocked with the back plate 300 can support the lumbar spine.

10, another embodiment of the downward turning means 500 is as follows.

The downward turning means 500 includes a first downward turning means 510 and a second downward turning means 520 for guiding downward turning operation of the back plate 300 in the base portion 100.

The first downward turning unit 510 couples the first guide member 511 provided in the base unit 100 to the first guide hole 512 having a curvature in the back plate unit 300.

The second downward rotation means 520 includes a second guide member 521 disposed behind the first guide member 511 of the base unit 100 and a second guide member 521 formed to have a curvature behind the first guide hole 512 of the back plate unit 300, 522 < / RTI >

The first guide member 511 and the second guide member 521 of the base unit 100 are guided and rotated downward to the first guide hole 512 and the second guide hole 522 of the back plate 300.

In other words, the back plate 300 is formed by vertically bending both sides of the joint member 310 disposed horizontally and forming a pair of opposing fixing surfaces 320 extending forward from the fixing plate 320, The first guide hole 512 and the second guide hole 522 are formed.

In addition, the base portion 100 may include a pair of support walls 110 formed by vertically bending both sides of a bottom surface 120 disposed horizontally, so that a pair of first guide members 511 and second guide members 511, Respectively.

The downward turning means 500 of the other embodiment having the above-described structure has the same operation and effect as the downward turning means 500 described above.

That is, when the seat occupant sits down on the backrest and moves the center of gravity through the downward turning means 500 of the other embodiment, the first guide member 511 and the second guide member 521 of the base unit 100 connected to the backrest are moved to the back plate 300 And is guided to the first guide hole 512 and the second guide hole 522 having a curvature in the shape of a curved line, respectively.

At this time, the back plate 300 is rotated downward toward the front of the chair while being in alignment with the center of the hip joint of the seated person, so that the backrest interlocked with the back plate 300 can support the lumbar spine.

Further, when the backboard 300 performs a downward turning operation toward the front of the chair, the seating unit 200 and the backboard 300 are interlocked with each other through the linear moving means 600. [

That is, in the linear movement means 600, when the seating portion 200 and the backboard 300 are interlocked and the downward turning operation is performed in the base portion 100, the linear moving means 600 is supported by the backboard 300 to perform a linear movement .

The linear moving means 600 is provided with a bracket 610 having a moving path 611 at a lower portion of the seating portion 200 and is coupled to a straight block 620 are provided so as to be movable in the moving path 611 by the downward turning operation of the base portion 100 and the back plate portion 300.

Here, the straight block 620 is formed with a fixing hole 621 whose one side is open at the rear, the fixing shaft 623 is coupled to the fixing hole 621, and the elastic member 622 is installed in the moving passage 611, 620 can be elastically brought into close contact with each other, thereby preventing the fixed shaft 623 from separating from the opened fixed hole 621.

Alternatively, the rectilinear block 620 may include a fixing hole 621 formed at the rear of the rectilinear block 620 so that the rectilinear block 620 may be inserted into the rectilinear block 620 so that the rectilinear block 620 can be interlocked therewith.

The seating part 200 and the backboard part 300 can be maintained in a connected state in accordance with the moving distance and the rotation angle of the backboard part 300 rotating downward in the base part 100 through the linear moving device 600 configured as described above.

In accordance with the movement distance and turning angle of the back plate 300 in the base unit 100, the linear movement unit 600 simultaneously performs a linear movement operation in the movement path of the seating unit while the linear block is rotating in the fixed axis do.

As a result, the interlocking operation of the seating part 200, which is operated by the backing part 300, is driven to the minimum operation range, thereby minimizing the frictional force during the interlocking operation of the backing part 300 and the seating part 200, So that the interlocking operation of the seating unit 200 is not interfered or an error of the mechanical operation is not caused.

In addition, the structure for realizing the mechanical interlocking operation of the seating portion 200 and the back plate 300 according to the movement distance and the rotation angle of the back plate 300 to rotate downward in the forward direction through the linear moving means 600 can be simplified as much as possible .

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 tilting apparatus 100: base unit
101: Support means 110: Support wall
120: bottom surface 200:
210: Bracket 300:
310: coupling member 320: fixing face
400: rotation means 420: center axis
430: through hole 500: downward turning means
510: first downward turning means 511: first guide member
512: first guide hole 520: second downward turning means
521: second guide member 522: second guide ball
600: linear moving means 610: bracket
611: moving path 620: straight block
621: Fixing hole 622: Elastic member

Claims (11)

A base portion,
A seating part hinged to the base part and rotating rearward with respect to the front side,
And a back plate portion guided by the base portion and rotating downward in association with the seating portion
A backward rotation operation is performed on the basis of the front of the seating portion through the rotation means hinged to each other in front of the base portion and the seating portion,
The back plate is guided by the base portion through the downward turning means connecting the base portion and the back plate portion to perform a downward turning operation forward,
When the downward tilting operation is performed by interlocking the seating portion and the back plate to the base portion through the linear movement means provided between the seating portion and the back plate, the linear movement means is supported on the back plate to perform a linear movement operation forward So
The turning operation, the downward turning operation, and the linear movement operation are simultaneously performed continuously,
Wherein the linear movement means comprises:
A bracket having a movement passage is coupled to a lower portion of the seating portion,
A fixed shaft is coupled to a back plate provided to be downwardly pivoted on the base,
A linear block movably installed in the moving path is coupled with the fixed shaft
Wherein the straight block moves linearly in the moving passage when the seating portion and the back plate are interlocked with each other in the downward tilting operation in the base portion.
The method according to claim 1,
Wherein the pivoting means comprises a through hole formed in front of the base portion and the seating portion, respectively, and a center shaft is coupled to the through hole communicated by the engagement of the base portion and the seating portion.
The method according to claim 1,
Wherein the downward-
A first downward turning means and a second downward turning means for guiding the downward turning operation of the back plate in the base portion,
Wherein the first downward turning means includes a first guide member provided on the back plate and coupled to the first guide hole having a curvature in the base portion,
The second downward turning means is provided with a second guide member on the rear side of the first guide member of the back plate portion and coupled to a second guide hole formed to have a curvature behind the first guide hole of the base portion
Wherein the first guide member and the second guide member of the back plate are guided and rotated downward in the first guide hole and the second guide hole of the base portion.
The method according to claim 1,
Wherein the downward-
A first downward turning means and a second downward turning means for guiding the downward turning operation of the back plate in the base portion are provided,
Wherein the first downward turning means includes a first guide member provided on the base portion and a second guide member provided on the base portion,
The second downward turning means is provided with a second guide member at the rear of the first guide member of the base portion and coupled to a second guide hole formed to have a curvature behind the first guide hole of the back plate portion
Wherein the first guide member and the second guide member of the base portion are guided and rotated downward in the first guide hole and the second guide hole of the back plate portion.
delete The method of claim 3,
The back plate has a pair of opposing fixing surfaces formed by vertically bending both sides of the joint member horizontally and extending forward to form a pair of first guide members and second pair of guide members on both sides of the fixing surface, And a guide member for guiding the tilting of the chair.
The method of claim 3,
Wherein the base includes a pair of support walls vertically bent at both sides of a horizontally disposed bottom surface, and a pair of first guide holes and second guide holes are formed on both sides of the support wall, respectively Tilting device.
5. The method of claim 4,
The back plate has a pair of opposing fixing surfaces formed by vertically bending at both sides of the joint member horizontally and extending forward to form a pair of first guide holes and a second guide And a plurality of holes are formed in the tilting apparatus.
5. The method of claim 4,
Wherein the base portion is formed with a pair of support walls vertically bent at both sides of a horizontally disposed bottom surface, and a pair of first guide members and second guide members are formed on both sides of the support wall, respectively Chair tilting device.
The method according to claim 1,
Wherein the rectilinear block is formed with a fixing hole at the rear, and the fixing shaft is coupled with the fixing shaft so that the rectilinear block can be interlocked with the backing plate.
The method according to claim 1,
Wherein the linear block has a fixing hole having one side opened at the rear, the fixing shaft is coupled to the fixing hole,
Wherein an elastic member is provided in the moving passage so that the linear block can be elastically brought into close contact with the fixed axis direction, thereby preventing the fixed shaft from deviating from the opened fixed hole.


KR1020150020689A 2014-04-30 2015-02-11 Titing device of chair KR101656003B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150020689A KR101656003B1 (en) 2015-02-11 2015-02-11 Titing device of chair
PCT/KR2015/004223 WO2015167205A1 (en) 2014-04-30 2015-04-28 Chair tilting device

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Application Number Priority Date Filing Date Title
KR1020150020689A KR101656003B1 (en) 2015-02-11 2015-02-11 Titing device of chair

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KR20160099134A KR20160099134A (en) 2016-08-22
KR101656003B1 true KR101656003B1 (en) 2016-09-12

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