KR101588702B1

KR101588702B1 - Tilling Chair

Info

Publication number: KR101588702B1
Application number: KR1020150092472A
Authority: KR
Inventors: 김란순
Original assignee: 김란순
Priority date: 2015-06-29
Filing date: 2015-06-29
Publication date: 2016-01-27

Abstract

The present invention relates to a structure in which a chair backrest is horizontally adjustable and a chair leg and a central rod are provided at a lower portion of the seat and a backrest pedestal is formed behind the seat back, A backrest supporting shaft 4 is formed by a hinge 5b at an upper portion thereof and a normal chair back 3 is formed at the backrest supporting member 4. The backrest supporting shaft 4 is formed by a hinge 5a, And an upper rotating mechanism fixing means of an upper rotating mechanism 200 fastened and fixed to the backrest support 4 is formed on the hinge 5b and the hinge 5a is fastened to the backrest support 6, Is moved in a horizontal position in a desired position by a fixing means of a fixed lower rotating mechanism (400)

Description

Tilling Chair

The present invention relates to a horizontally movable chair back, and more particularly, to a horizontal moving chair back, which is installed along a central portion of a backrest of a chair, To a horizontal movable chair back which can be adapted to suit a preference even if the leg is long or short.

1 and 2, a tilting chair 100 according to the prior art has a backward center of the backrest 130, which can be tilted with respect to the cushion 110, as shown in Japanese Patent No. 10-1179498 A tilting part 140 may be provided on both sides of the frame 132 formed along the rim of the backrest part 130. [

In some cases, the backrest 130 may be provided directly on the frame 132 adjacent to the frame.

Particularly, the tilting part 140 is connected to the cushion part 110 and the other side is connected to the backrest part 130 so that the backrest part 130 can be tilted with respect to the cushion part 110 And includes a branch support 142 and a tilting means 144 that allows the backrest 130 to be tilted with respect to the cushion 110.

One end of the branch support is connected to the lower portion of the cushion 110 and the other end is connected to the backrest 130 through the tilting means 144.

1 and 2, the branched support 142 is formed in an " a "shape, one end formed horizontally is connected to the cushion 110, and the vertically formed portion is connected to the backrest 130, Can connect with

At this time, it is preferable that one end of the vertically formed branch support 142 is branched so as to support both sides of the backrest 130, as shown in FIG.

The tilting means 144 is coupled to the branch support 142 and a portion of the tilting means 144 is coupled to the frame 132 of the backrest 130, So that the backrest 130 can be tilted with respect to the backrest.

Specifically, the tilting means 144 includes a fixing member 146 coupled to both branched ends of the branch support 142, as shown in the figure, And a elastic member 148 provided between the fixing member 146 and the rotary member 147 to provide an elastic restoring force.

The fixing member 146 is formed with a hinge hole 146a so that one end thereof is coupled to the branch support rod 142 and the other end thereof is rotatably coupled to the rotary member 147. [

The rotary member 147 is hingedly coupled to the fixing member 146 through a hinge shaft 145 and is formed in a plate shape so that one side thereof can be coupled to the backrest 130 of the chair, And a hinge hole 147a is formed at the center of the hinge hole so as to be hinged to the fixing member 146. [

The elastic member 148 is formed as a compression spring so as to be installed between the fixing member 146 and the rotary member 147 and to be compressed as the rotary member 147 rotates,

Therefore, the fixing member 146 and the rotary member 147 having the above-described structure can be rotated in the direction of the arrow shown by the solid line in Fig.

The fixing member 146 is formed with a groove 146b between a portion of the fixing member 146 and the hinge hole 146a which is engaged with the branch support rod 142. The rotary member 147 is provided with a groove So that the elastic members 148 having an elastic restoring force are coupled to the respective grooves 146b and 147b.

That is, by providing an elastic member 148 between the fixing member 146 and the rotary member 147 to provide an elastic restoring force, when the user applies a force to the back of the back member, (147) is rotated to press the two elastic members (148).

Accordingly, when the user presses back the back pressure, the pressing member 148 is maintained in a compressed state, and the rotating member 147 is rotated by the elastic restoring force of the elastic member 148, Thereby rotating the part 130.

The end of the elastic member 148 is provided with a guide pin 149 having a guide groove 149a at one side thereof and the groove 146b.147b of the fixing member 146 and the rotary member 147 And guide protrusions 146c and 147c slidably engaged with the guide groove 149a to guide the guide protrusions 146c and 147c along the guide protrusions 146c and 147c when the rotary member 147 is rotated with respect to the stationary member 146. [ By allowing the guide pin 149 to slide, the rotational member 147 can be smoothly rotated in the direction of the arrow shown by the solid line in FIG.

However, the above-mentioned prior art has a problem in that the chair can not be used well because there is no structure that can be easily seated when the key is large or small, that is, when the leg is long or short, There were many.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a structure for solving the technical problem of allowing the chair back to move horizontally by simplifying the structure.

The present invention relates to a structure in which a chair backrest is horizontally adjustable and a chair leg and a central rod are provided at a lower portion of the seat and a backrest pedestal is formed behind the seat back, A backrest supporting shaft 4 is formed by a hinge 5b at an upper portion thereof and a normal chair back 3 is formed at the backrest supporting member 4. The backrest supporting shaft 4 is formed by a hinge 5a, And an upper rotating mechanism fixing means of an upper rotating mechanism 200 fastened and fixed to the backrest support 4 is formed on the hinge 5b and the hinge 5a is fastened to the backrest support 6, And is moved in a horizontal position in a desired position by a fixing means of a fixed lower rotating mechanism (400).

The upper rotating mechanism 200 includes a supporting shaft bolt 250 fixed to the backrest support 4 by a bolt fixedly coupled to the backrest rotating shaft case of the backrest rotating shaft 5, And the upper position fixing hole 337a and the lower position fixing hole 337b of the position fixing bar 330 are aligned with the upper fixing pin fixing hole 212a and the lower fixing pin fixing hole 213a, And a fixing pin 23a (23b) is inserted into the fixing pin 23a, and the chair back support 4 is fixed in place.

The fixing means of the lower turning mechanism 400 according to the present invention can be rotated by a hinge within the cutout groove 270 of the upper turning mechanism 200 and the cutout groove 470 of the lower turning mechanism 400 And the left and right rotation stop bars 300a and 300b are hinged to the upper rotation mechanism 200 by the support shaft bolt fastening holes 332b at one side of the left and right rotation stop bars 300a and 300b, And a position fixing bar 330 hinged to the rotation mechanism 400 by a support shaft bolt fastening hole 332a and a rotation restricting area 335 is provided on one side of the position fixing bar 330, And is rotatably restrained by a detent projection (460) formed on one side of the turning mechanism (400).

In the present invention, bolt fastening holes 210 and 220 are formed at left and right sides of the support shaft coupling bolt hole 250a at a central portion of the upper rotation mechanism 200, Three fixing holes 212a, 212b and 212c are formed and three lower fixing pin fixing holes 213a, 213b and 213c are formed on the opposite side. It is a backrest.

The upper rotating mechanism fixing means 100 of the present invention is configured such that the rotary portion 10 is inserted into the support portion 20 while being elastically shrunk by the elastic member 30, And is fixed by a rotation part fastening bolt (57) formed at the rear end of the rotary part coupling cap part (50) by being caught by the body fitting part (45).

The present invention is characterized in that the rotation part 10 has three rotation guide part protrusions 12a, 12b and 12c at equal intervals on one side of the upper part of the rotation part rotating cylinder 11, The rotation guide portion protrusions 12a, 12b and 12c are formed on both sides of the rotation guide portion recess 14 in such a manner that one side of the rotation guide portion protrusions 12a, 12b and 12c is inclined with respect to the rotation guide inclined portion 13a And a rotation guide straight line portion 13b is formed in a straight line on the opposite side of the rotation guide portion protrusion 12. The rotation guide portion protrusions 12a, 12b, 12c are formed in the rotation guide recessed portion 26 of the support and securing portion 20, And the support base 20 is linearly moved by the rotation guide slope part 13a by rotational movement.

The present invention is characterized in that the supporting and securing portion 20 is formed with a fixing pin forming portion 21 having fixing pins 23a and 23b formed in the front portion thereof and a rotation guide portion protrusion 25a 25b and 25c are equally spaced apart from each other, and a rotation guide recess 26 is formed therebetween. At the same time, the rotation guide recess 26 is inclined at one side in an inclined manner, And a rotary guide straight line portion 26a is formed in a straight line on the opposite side thereof.

Accordingly, the present invention has the effect of simplifying the structure as described above, allowing the chair backrest to move horizontally in a multistage manner, allowing the seat occupant to sit at a desired position and sit comfortably. It is.

1 is a side view of a chair of a conventional tilting chair;
2 is a side view of a chair showing an operating state of a conventional tilting chair
3 is a side view showing the operating state of the present invention
4 is a schematic perspective view showing the constitutional relationship of the main part of the present invention.
Figure 5 is an exploded perspective view of a structure in which the release and locking states of the upper back of the present invention are actuated;
Fig. 6 is a perspective view (a), a front view (b), and a rear view (c) showing the operating state of the rotating part of the present invention;
7 is a perspective view (a), a front view (b), and a rear view (c) showing the operating state of the support and securing portion of the present invention,
FIG. 8 is a perspective view (a), a front view (b), and a rear view (c) showing the operating state of the rotating portion coupling portion of the present invention;
FIG. 9 is a perspective view (a), a front view (b), and a rear view (c) showing an operating state of the rotating portion-
Fig. 10 is a schematic perspective view showing the combination of the upper and lower rotation mechanism and the left and right rotation blocking bars of the present invention
Fig. 11 is a cross-sectional view showing the operating relationship of Fig. 10, showing a position (a) of a support arm fixing member in a state in which the back is moved forward and a sectional view (b)
Fig. 12 is a cross-sectional view of the structure of Fig. 11 in which the position fixing bar is engaged. Fig. 12 is a sectional view showing a position (a) of a support fixture in a state in which the back is moved forward and a position (b) Side view (c)
13 is an exploded perspective view (a) and an assembled perspective view (b) of Fig. 12;
14 is a perspective view of a backrest pivoting portion of the present invention

Hereinafter, embodiments of the present invention will be described in detail.

In order to explain the preferred embodiments of the present invention, the thicknesses of the lines and the sizes of the components shown in the attached drawings may be exaggerated or omitted for clarity and convenience of description, Terms to be given are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator.

FIG. 3 is a side view showing the operating state of the present invention, FIG. 4 is a schematic perspective view showing a constitutional relationship of the main part of the present invention, FIG. 5 is an exploded perspective view (A), a front view (b), and a rear view (c), and FIG. 7 is a perspective view (a) showing an operation state of the support and securing portion of the present invention. 8 is a perspective view (a), a front view (b), and a rear view (c) showing the operating state of the rotating portion coupling portion of the present invention, and FIG. 9 is a cross- (B) and a rear view (c). FIG. 10 is a schematic perspective view showing a coupling relation between the upper and lower rotation mechanism and the left and right rotation blocking bars of the present invention. to be.

Referring to FIG. 3, there is shown a structure in which an operating relationship is shown with respect to a horizontal moving part of a chair back, in which a chair leg and a center rod 2 are provided at the lower part of the seat, and a backrest pedestal 6 is formed at the rear A backrest supporting shaft 4 is formed by a hinge shaft at an upper portion thereof and a normal chair back 3 is formed on the backrest supporting member 4. The backrest supporting shaft 4 is fixed to the backrest supporting shaft 4, And the chair back 3 is moved in the horizontal direction as it is by the upper turning mechanism 200 and the lower turning mechanism 400 to be described later. Here, the seat back 3 is moved to the three positions, that is, the front position A and the middle position B , And can be horizontally moved to the position of the backward point C.

4 shows a state in which the back support pedestal 4 is coupled to the back support pivot shaft 5 and the back support pedestal 6. The back support pedestal 4 and the back support pivot shaft 5, The upper rotation mechanism 200 is fixedly coupled to the backrest support 4 by the support shaft bolt 250. The upper rotation mechanism 200 includes a backrest pivotal part 5, And is fixed together with a position fixing bar 330 bolted to the shaft case 500a and one side left and right rotation stop bars 300a and 300b.

Reference numeral 500b denotes a backrest pivot shaft case formed on the opposite side of the backrest pivot shaft case 500a.

Bolt fastening holes 210 and 220 are formed at left and right sides of the support shaft coupling bolt hole 250a at the central portion of the upper turning mechanism 200. The bolt fastening holes 210 and 220 are formed at right angles to the bolt fastening holes 210 and 220 Two upper fixing pin fixing holes 212a, 212b and 212c are formed on the upper side and three lower fixing pin fixing holes 213a, 213b and 213c are formed on the opposite side, (3) horizontally to the front, rear, and center.

The configuration for fixing the backrest support 4 so as to perform such a function is the fixing pins 23a and 23b and the mechanism for operating the fixing pins 23a and 23b is the upper turning mechanism fixing means 100. This will be described in detail.

5, the rotating portion 10 of the upper rotating mechanism fixing means 100 is inserted into the support base 20 and is elastically deformed by the elastic member 30 And is fixed by a rotating part fastening bolt 57 formed at the rear end of the rotating part engaging cap part 50 by being inserted into the body fitting hole 45 of the rotating part engaging body part 40.

The rotary part 10 of the upper rotating mechanism fixing means 100 is provided with three rotation guide part protrusions 12a, 12b and 12c at equal intervals on one side of the upper part of the rotary part rotary cylinder 11 The rotation guide portion protrusions 12a, 12b and 12c are formed on both sides of the rotation guide portion recess 14 in such a manner that the rotation guide portion protrusions 12a, And the rotation guide straight line portion 13b is formed in a straight line on the opposite side of the rotation guide slanting portion 13a.

The rotation guide portion protrusions 12a, 12b and 12c are engaged with the rotation guide recess portions 26 of the support and securing portion 20 to be described later, And is converted into a rectilinear motion by the inclined portion 13a.

The supporting and securing portion 20 is formed with a fixing pin forming portion 21 having fixing pins 23a and 23b formed at its front portion and a rotation guide portion protruding portion 25a and 25b And the rotation guide recesses 26 are formed at the same intervals so that one side of the rotation guide recesses 26 is inclined with respect to the rotation guide slopes 26a And a rotation guide straight line portion 26b is formed in a straight line on the opposite side.

The rotation guide portion protrusions 12a, 12b and 12c of the rotation portion 10 inserted through the through hole 24 of the support and securing portion 20 are inserted into the rotation guide recess portion 26 The rotation guide inclined portion 13a of the rotation guide portion protrusions 12a, 12b and 12c is engaged with the end of the rotation guide straight portion 26b of the rotation guide recessed portion 26, The supporting and securing portion 20 is pulled toward the inside of the rotating portion engaging body portion 40 by the force so that the fixing pins 23a and 23b are inserted into the upper fixing pin fixing holes 212a, 212b and 212c And the lower fixing pin fixing holes 213a, 213b and 213c, the backrest support 4 can be freely moved back and forth.

When the rotary part 10 is rotated in the opposite direction to the reverse direction, the support part 20 is advanced by the elastic means 30 so that the fixing pins 23a, 212b, 212c and the lower fixing pin fixing holes 213a, 213b, 213c of the pin fixing holes 212a, 212b, 212c, and the backrest supporting base 4 is not rotated after it is fitted.

The rotatable coupling body 40 is coupled to the inner spiral portion of the upper rotary coupling portion 610 formed on the backrest rotary shaft portion 5 to be described later with the case coupling spiral portion 41 formed in front thereof And a case engaging stopper 43 is formed at the rear end thereof and a trunking through hole 45 for engaging the trunk receiving portion 16 of the rotating portion 10 is formed.

The backrest rotating shaft case 500a is divided into an upper rotating shaft coupling part 610 and a lower rotating shaft coupling part 620 and a supporting shaft fixing hole 610a is formed at the center of the upper rotating shaft coupling part 610 And fixing pin fixing holes 615a and 615b are formed at the edges of the fixing pins 23a and 23b.

The lower rotary coupling portion 620 is formed with a support shaft fixing hole 620a and the bolt hole 450a of the lower rotary mechanism 400 and the fastening hole 332a of the position fixing bar 330 are fixed by the long bolt, And the seatback base 6 to be rotated and fixed.

The rotation part-engaging cap part 50 has a rotary part engaging protrusion 51 protruding in a cylindrical shape and a rectangular engaging protrusion 51 formed thereon at a rear end thereof to be engaged with the body engaging part 16 of the rotation part 10 And the rotating portion 10 is also rotated in the same direction when the rotating portion engaging cap portion 50 is rotated.

Unexplained reference numerals 18 and 55 are bolt holes, which are engaged and fixed by the rotating portion fastening bolts 57.

The following describes the operational relationship in which the lower turning mechanism 400 is fixed and not rotated with the backrest pedestal 6 when the upper turning mechanism 200 is stopped.

Fig. 11 is a cross-sectional view showing the operating relationship of Fig. 10, and is a sectional view showing a position (a) of a support arm fixing member and a position of a support arm fixing member (b) (C) is a cross-sectional view of the position fixing bar in a state in which the backrest is moved forward and a position (b) Fig. 13 is an exploded perspective view (a) and an assembled perspective view (b) of Fig. 12, and Fig. 14 is a perspective view of a backrest pivotal shaft portion case of the present invention.

The upper rotation mechanism 200 and the lower rotation mechanism 400 are connected to each other by a left rotation stop bar 300a and a right rotation stop bar 300b which are inserted into the cutout groove 270 and the cutout groove 470 And are rotatable while being fixed by the rotation pins 230a and 230b and the rotation pins 430a and 430b, respectively.

10, when the upper rotating mechanism fixing means 100 is rotated and the backrest is pushed forward, the upper position fixing hole 337a of the position fixing bar 330 and the lower position fixing The holes 337b coincide with the upper fixing pin fixing holes 212a and the lower fixing pin fixing holes 213a so that the fixing pins 23a and 23b are fitted into the fixing holes so that the backrest support 4 is fixed have.

Since the position fixing bar 330 and the left rotation stop bar 300a and the right rotation stop bar 300b are fixed at the same time, the three rotation axes are fixed and do not move, And the chair backrest 6 fixed thereto is also fixed, so that the chair backrest is moved forward by being fixed as a whole.

At this time, a rotation restricting area 335 is formed at one side of the lower end of the position fixing bar 330. In this area, the back rest is formed by the detent projection 460 formed at one side of the lower rotation mechanism 400, And is formed so as not to exceed the step 335a.

Reference numerals 332a and 332b denote supporting shaft bolt fastening holes.

The upper position fixing hole 337a and the lower position fixing hole 337b of the position fixing bar 330 are fixed to the upper fixing pin fixing hole 337a by rotating the upper turning mechanism fixing means 100 in the opposite direction, The fixing pins 23a and 23b are fitted into the lower fixing pin fixing hole 213 and the lower fixing pin fixing hole 213 so that the backrest support 4 is fixed in place.

Since the position fixing bar 330 and the left rotation stop bar 300a and the right rotation stop bar 300b are fixed at the same time, the three rotation axes are fixed and do not move, And the backrest pedestal 6 fixed thereto is also fixed, so that the seat backrest is moved forward by being fixed as a whole.

At this time, a rotation restricting area 335 is formed at one lower side of the position fixing bar 330. In this area, the back rest is formed by a detent projection 460 formed on one side of the lower rotation mechanism 400, (335b).

As described above, since the present invention is improved to a structure capable of horizontally moving, the user's hips can be fully seated on the seat of the chair, and the back can be leaned.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken in conjunction with the scope of the present invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be resorted to without departing from the scope of the appended claims.

3: Chair back
4: Backrest support
5: Backrest pivoting case
10:
12a, 12b, and 12c:
20:
21: Fixing pin forming part
23a, 23b:
30: elastic member
40: rotating part engaging body part
50: backrest pivoting case
200: upper rotating mechanism
212a, 212b, 212c: upper fixing pin fixing hole
213a, 213b, 213c: Lower fixing pin fixing hole
300a: left rotation jersey bar
300b: right rotation jersey bar
330: Position fixing bar
400: Lower rotating mechanism
460: detent projection

Claims

In the structure in which the chair legs and the center bar 2 are provided at the lower portion of the seat so that the seat back can be horizontally adjusted and the backrest pedestal 6 is formed at the rear thereof,
A backrest pivotal shaft 5 is formed by using a hinge 5a at an upper portion of the backrest pedestal 6 and a backrest support 4 is formed by a hinge 5b at an upper portion thereof, And the hinge 5b is formed with an upper turning mechanism fixing means 100 of an upper turning mechanism 200 fastened and fixed to the backrest support 4. The upper turning mechanism fixing means 100 includes a hinge 5a, The upper rotating mechanism 200 is moved in the horizontal direction at a desired position by the fixing means of the lower rotating mechanism 400 fastened and fixed to the backrest support 6, The position fixing bar 330 fixed to the backrest rotating shaft case of the position fixing bar 330 by the bolts is coupled and fixed by the support shaft bolt 250 and the upper position fixing hole 337a and the lower The position fixing holes 337b are formed in the upper fixing pin fixing hole 212a and the lower fixing Fixing hole (213a) is inserted into a matching fixing pin (23a), (23b) Here the horizontal movable chair back characterized in that the backrest support (4) fixed in place

delete

The method according to claim 1,
The fixing means of the lower turning mechanism 400 includes a cutout groove 270 of the upper turning mechanism 200 and a cutout groove 470 of the lower turning mechanism 400, The bar 300a and 300b are hinged to one side of the left and right rotation stop bars 300a and 300b by the support shaft bolt fastening holes 332b in the upper rotation mechanism 200, And a position fixing bar 330 hinged by a support shaft bolt fastening hole 332a and a rotation restricting area 335 is provided on one side of the position fixing bar 330, And is rotatably restrained by a detent projection (460) formed on one side thereof.

The method according to claim 1,
The upper turning mechanism 200 has bolt fastening holes 210 and 220 formed at left and right sides of the support shaft coupling bolt hole 250a at the center thereof and an upper fixing pin fixing hole 212a at an upper right corner thereof, And three lower fixing pin fixing holes 213a, 213b and 213c are formed on the opposite side of the seat back 212b and 212c,

The method according to claim 1,
The upper rotating mechanism fixing means 100 is configured such that the rotating portion 10 is inserted into the supporting and holding portion 20 while being elastically shrunk by the elastic member 30, 45) and is fixed by a rotation part fastening bolt (57) formed at the rear end of the rotation part coupling cap part (50)

6. The method of claim 5,
The rotation part 10 has three rotation guide part protrusions 12a, 12b and 12c formed at equal intervals on one side of the upper part of the rotary part rotating cylinder 11 and the rotation guide part protrusions 12a, 12b and 12c The rotation guide portion protrusions 12a, 12b and 12c are formed on both sides of the rotation guide portion recess 14 so as to form a rotation guide slanting portion 13a with one side inclined, And the rotation guide portion protrusions 12a, 12b and 12c are coupled to the rotation guide recessed portion 26 of the support and securing portion 20, And the support rest portion (20) is converted into a linear movement by the rotation guide slope portion (13a)

6. The method of claim 5,
The supporting and securing portion 20 is formed with a fixing pin forming portion 21 having fixing pins 23a and 23b formed at its front portion and a rotation guide portion protruding portion 25a and 25b The rotation guide recesses 26 are formed at the same intervals so that one side of the rotation guide recesses 26 is inclined in the same direction as the rotation guide inclined portions 26b , And a rotary guide straight line portion (26a) is formed in a straight line on the opposite side thereof.