KR200422122Y1 - Backplate for chair - Google Patents

Abstract

The present invention relates to a chair back structure, wherein the two backrest outer plates 101 are laterally separated from each other and at the same time two lumbar supports 201 supporting the lumbar spine for comfort under the outer plate 101 are left and right. Is formed in, the backrest outer plate 101 is coupled to the middle rail 103 to the elastic element 102 by the bolt 108, the structure and shape of the two backrest outer plates 101 is the waist of the human body It is a shape that surrounds the back of both sides of the shaft, and is rounded like an oval when viewed as a whole so that the entire structure of the two backrest outer plates 101 can support the back in a line when viewed in the axial direction (X axis) perpendicular to the seat surface. When looking in the horizontal axis direction (Y-axis), which is a horizontal plane on the surface of the seat, the backrest outer plate 101 has a needle-shaped (b) shape, and the curved portions 111 protrude from the left and right sides thereof, and each shape of the backrest outer plate 101 is formed. In contact with the spinal column The portion is formed in a straight line, the elastic element 102 is a trapezoidal shape for fixing the chair back, the upper end is fixed at the center of the chair back by bolts, and in order to prevent sagging of the chair back at the lower center of the chair back The bottom is fixed and fixed by the horizontal movement fixing hole of the middle side stand 103 and the bolt can adjust the width.

Chair, backrest, outer plate, backrest, lumbar support, spine support, curve

Description

Backrest for chair {Backplate for chair}

Figure 1a is a schematic perspective view of a first embodiment of the dual back type to which the lumbar support structure of the present invention is applied

1B is a schematic plan view of a first embodiment of the present invention

Figure 2a is a schematic perspective view of a second embodiment of the dual back type to which the lumbar support structure of the present invention is applied

2b is a schematic side view of a second embodiment of the present invention;

Figure 2c is a schematic perspective view of the back of the chair back of the second embodiment to which the lumbar support structure of the present invention is applied

Figure 3a is a schematic perspective view of the modification of the lumbar backrest of the second embodiment of the present invention

Figure 3b is a schematic side view of the modification of the lumbar backrest of the second embodiment of the present invention

Figure 4a is a schematic front view of a third embodiment to which the lumbar support structure of the present invention is applied

Figure 4b is a schematic front view of a fourth embodiment to which the lumbar support structure of the present invention is applied

Figure 5 is a perspective view of the rubber elastomer coupled to the chair back and lumbar support and the middle side of the subject innovation of the present invention

Figure 6a is a schematic perspective view showing a second embodiment of the chair back of the subject innovation of the present invention

Figure 6b is a schematic perspective view showing a third embodiment of the chair back of the subject innovation of the present invention

7A is a plan view showing the arrangement of the chair back at the time of initial seating according to the second and third embodiments of the chair back of the present invention;

7B is a plan view showing the arrangement of the chair back after being seated according to the second and third embodiments of the chair back of the present invention

8 is a schematic view showing the structure of a conventional chair back

9 is a real photograph showing the lumbar support structure of another conventional embodiment

Explanation of symbols on the main parts of the drawings

100, 100 ', 101: chair back 102: elastic element

103: middle side stand 108: bolt

201: Lumbar support 202: Small elastic element

203: small middle side stand 204: connecting rod

207: elastic connector 400: support

401, 402: support

The present invention relates to a chair backrest for lumbar spine, and more particularly, the left and right backboards are adapted to the seater's body shape when the seated person sits on a chair to support the spine and lumbar spine. And it relates to a chair back for tightening the fastening means.

In general, the chair back is composed of the contact surface of the horse saddle, so that the face of the back is uniformly formed when sitting, and there are many difficulties in satisfying people with various physical characteristics.

In addition, office chairs and home chairs that are commonly used are formed by integrally forming a cushion to support the buttocks of the seat and the backrest supporting the back portion, or after separating the cushion and the backrest, the backrest can be adjusted at an angle to the rear of the cushion. It is intended to give users convenience.

However, in such a case, the user's back and the back part are easily fatigued and correct because the back part of the user is not completely in close contact and the back part only touches the center position. It has the disadvantage of not being able to maintain posture.

In order to solve this problem, the backrest in the recent years is composed of a dual pack type so that a pair of backrests comfortably wrap both sides of the back when seated on a chair to maintain a stable and correct posture.

Looking at the backrest 1 of the conventional dual pack type as described above with reference to FIG.

In a chair back comprising two backrest shells (1), the two backrests (A, B) are separated from each other in an axial direction and concave when viewed in an axial direction perpendicular to the seat surface and the seat surface. It is formed convexly in the form of contact surface of the horse saddle when viewed in the transverse horizontal axis direction disposed above, the ends of the elastic element 2 on the upper and lower ends of each of the backrest shell 1, the intermediate crossbar and the support shaft 4 And the chair back, which is firmly connected by the elastic means 6, has already been disclosed.

Therefore, when viewed from the structure of the conventional chair back, when the seated person is in close contact with the back for a long time or strongly, there is a problem that not only gives a feeling of pressure on the back and waist of the body but also may cause the spine to bend.

Among these, as shown in FIG. 9, an improved chair capable of supporting the lumbar spine was being released.

However, the structure of the lumbar support supporting the lumbar spine as above only supports the lumbar spine with only one, so there is no sense of safety, comfort, and the connection part can be fastened with a spring to give elasticity to the support, and the configuration is also fastened. Because the connection part of the lumbar spine is combined with steel wire and plastic, there was a problem of easily breaking according to the composition of the plastic material (stiffness: rigidity).

Therefore, the present invention has been devised to solve the above problems, the present invention relates to a backrest chair for lumbar spine, more specifically, a pair of backrests provided in pairs to surround the seat left and right of the seated person. Improving the backrest of the chair, constituting the backrest of the chair around the spine, and forming a lumbar support in the lower part thereof, the lumbar support is improved to support both hips, and formed to facilitate coupling and elasticity, further It is to improve the structure of the chair back to maintain the spine straight while the chair back is in direct contact with the spine so that the spine can be corrected.

The present invention is provided with a seat back and a chair back, and the back of the chair back for lumbar support provided with a lumbar support at the lower end of the chair back, the lumbar support is formed by two on both sides, but small by a small elastic element 202 It is coupled by a bolt at the side of the middle stand 203, and is coupled to the seat plate by the connecting means at the middle of the small middle stand 203, the shape of the lumbar support concave in the horizontal direction from above, the side The backrest chair backrest is characterized in that it has a straight line shape in the vertical direction, and the chairback has two backrest outer plates 101 laterally separated from each other and at the same time the backrest outer plate 101 has a middle side stand ( It is coupled to the elastic element 102 by the bolt 108 to the 103, the structure and shape of the two backrest outer plate 101 is both sides of the waist axis of the human body It is a shape that surrounds the back of the back, and when viewed in the axial direction (X axis) perpendicular to the surface of the sheet, the entire structure of the two backrest outer plates 101 is rounded like an oval as a whole so as to support the back in a line. In the horizontal axis direction (Y-axis), which is a horizontal surface on the seat surface, the backrest outer plate 101 has a needle-shaped (b) shape, and the curved portion 111 protrudes from the left and right sides thereof. The part in contact with the site relates to a backrest for backrest, characterized in that formed in a straight line.

And, the connecting means is a lumbar support chair, characterized in that coupled to the chair support 400 by the bolt support (204a) (204b) by the back support 204 in the middle portion of the small intermediate frame (203) It is a backrest, and the lumbar support relates to a chair backrest for lumbar support, characterized in that the lower end has a needle-shaped recess 211 formed therein.

In addition, the connecting means is a backrest chair backrest, characterized in that coupled to the chair support 401 in the middle portion of the small middle side stand 203, the lumbar support is a needle-shaped recess at the lower end ( 211) relates to a chair backrest for lumbar support characterized in that it is formed.

In addition, the connecting means is fastened by bolts by the fastening hole 207a with the support member 400 by elastic connecting members 207 each having a declination shape on the chair back 201 formed on two sides except for the middle side stand. And, lumbar backrest 202 and the lumbar support chair backrest, characterized in that is fastened with a bolt by a fastening hole (207b), the connecting means is a chair backrest 20 formed on two sides on both sides except the middle stand. Each of them is fastened by bolts by the support 402 and the fastening hole 217a by the elastic connecting rod 217 that is in the shape of a citron, and the lumbar backrest 202 is fastened by a bolt by the fastening holes 217b. It relates to a backrest chair for lumbar support.

In addition, the chair back has a spinal column 12 on one side of the chair back (100, 100 ') is formed in a vertical linear shape relative to the back of the back portion 13, the middle portion is viewed in a plane, etc. The grooves are dug into a round shape to support the, and the groove is a backrest for backrest, characterized in that the groove is formed vertically from the side, the upper and lower ends of the chair backrest 100, 100 ' It relates to a lumbar support chair back, characterized in that the bent portions (12a) (12b) are formed.

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the present invention for achieving the above object.

Figure 1a is a schematic perspective view of a first embodiment of the dual back type to which the lumbar support structure of the present invention is applied, Figure 1b is a schematic plan view of a first embodiment of the present invention.

Figure 2a is a schematic perspective view of a second embodiment of the dual back type to which the lumbar support structure of the present invention is applied, Figure 2b is a schematic side view of a second embodiment of the present invention, Figure 2c is a second application of the lumbar support structure of the present invention It is a schematic perspective view in which the chair back of 2nd Example was formed integrally.

Figure 3a is a schematic perspective view of the modification of the lumbar backrest of the second embodiment of the present invention, Figure 3b is a schematic side view of the modification of the lumbar backrest of the second embodiment of the present invention.

Figure 4a is a schematic front view of a third embodiment to which the lumbar support structure of the present invention is applied, Figure 4b is a schematic front view of a fourth embodiment to which the lumbar support structure of the present invention is applied.

Figure 5 is a perspective view of the rubber elastomer coupled to the chair back and lumbar support and the middle side of the subject innovation of the present invention.

The present invention relates to a chair back structure, wherein the two backrest outer plates 101 are laterally separated from each other and at the same time two lumbar supports 201 supporting the lumbar spine for comfort under the outer plate 101 are left and right. Is formed in, the backrest outer plate 101 is coupled to the middle rail 103 to the elastic element 102 by the bolt 108, the structure and shape of the two backrest outer plates 101 is the waist of the human body It is a shape that surrounds the back of both sides of the shaft, and is rounded like an oval when viewed as a whole so that the entire structure of the two backrest outer plates 101 can support the back in a line when viewed in the axial direction (X axis) perpendicular to the seat surface. When looking in the horizontal axis direction (Y-axis), which is a horizontal plane on the surface of the seat, the backrest outer plate 101 has a needle-shaped (b) shape, and the curved portions 111 protrude from the left and right sides thereof, and each shape of the backrest outer plate 101 is formed. In contact with the spinal column The portion is formed in a straight line, the elastic element 102 is a trapezoidal shape for fixing the chair back, the top is fixed at the center of the chair back by bolts, and the lower back of the chair back to prevent the chair back from sagging. At the bottom is fixed and fixed by the horizontal movement fixing holes and bolts of the middle side stand 103, the width can be adjusted.

The reference numeral 301 is a connection portion of the support connected to the seat plate, it is possible to adjust the height of the middle side stand 103 coupled by the bolt 303 is fastened at the same time to form a long hole 302 formed vertically.

In addition, the two lumbar support 201 is coupled by a bolt at the side of the small intermediate frame 203 by the small elastic element 202, the back support 204 in the middle of the small intermediate frame 203 ) Is coupled by bolts 204a and 204b at the bottom and front and rear of the chair support 400 or the middle side stand 103.

Here, the elastic element 102 is referred to as a rubber elastic body, as shown in Figure 5, 101a and 101a 'of the unexplained rubber elastomer (7) is a back binding portion, 102a is a back support binding portion, 103a and 103a' The elastic portions 107 and 107 'are reinforcing force rib portions.

The rubber elastic body 7 has been registered by the present inventors in advance.

In addition, the small elastic element 202 attached to the lumbar support 201 takes the same shape as the rubber elastic body 107, but is connected in a small size.

In addition, the shape of the two lumbar support 201 respectively surrounds both sides of the hip of the human body, and is concave when viewed in the axial direction (X axis) perpendicular to the seat surface, and the horizontal axis direction (Y axis) which is horizontal to the seat surface. As shown in FIG. 3, the parts contacting the hip and lumbar region are formed in a straight line, and the small elastic element 202 is trapezoidal by a conventional fixing means to fix the lumbar support by the bolt to the small middle cross member 203. It is connected.

Next, as a second embodiment, as shown in FIGS. 2A and 2B, the lumbar support 202 at the lower end of the chair back 101 as shown in the first embodiment is respectively formed by the small elastic elements 202. It is formed in, but is formed on the small middle side stand 203 to form a support 401 connected to the seat plate of the chair separately and fastened with bolts by the fastening bolt hole (203a).

In addition, the shape of the two lumbar support 201 respectively surrounds both sides of the hip of the human body, and is concave when viewed in the axial direction (X axis) perpendicular to the seat surface, and the horizontal axis direction (Y axis) which is horizontal to the seat surface. As shown in FIG. 3, the parts contacting the hip and lumbar region are formed in a straight line, and the small elastic element 202 is trapezoidal by a conventional fixing means to fix the lumbar support by the bolt to the small middle cross member 203. It is connected.

Accordingly, when the lumbar support 202 is subjected to the back force, the support 401 has elasticity, so that the support 401 is operated separately from the chair back 101 so as to feel a separate comfort.

As shown in Figure 2c, the chair back 121 of the second embodiment to which the lumbar support structure of the present invention is applied is a schematic perspective view, the lower space that can accommodate the lumbar support in the lower part of the chair back 121 It is preferable to have, and the other structure can take the same structure as in Example 2.

In addition to the second embodiment as described above, the chair back structure may be applicable to the following embodiments 3 and 4 by design.

The following is a design for the modification of the lumbar backrest of the second embodiment of the present invention, Figure 3a is a schematic perspective view of the deformation of the lumbar backrest of the second embodiment of the present invention, Figure 3b is a lumbar backrest of the second embodiment of the present invention A schematic side view of the variation of.

3A and 3B, the lower end of the lumbar backrest 201 has a needle-shaped recess 211 formed thereon to support both hips up when the body is back, and the comfort is further increased. will be.

Since other structures are the same, the description is omitted.

Next, as a third embodiment, as shown in FIG. 4A, the lumbar support 202 at the lower end of the chair back 101 as shown in FIG. 4A is supported by an elastic connector 207 each having a deflected shape. ) Is fastened by bolts by fastening holes 207a, and lumbar backrest 202 is fastened by bolts by fastening holes 207b.

In addition, the shape of the two lumbar support 201 respectively surrounds both sides of the hip of the human body, and is concave when viewed in the axial direction (X axis) perpendicular to the seat surface, and the horizontal axis direction (Y axis) which is horizontal to the seat surface. ), The parts in contact with the hip and lumbar region are formed in a straight line, and are directly connected to the connecting rod and the lumbar support or the support by bolts, etc., to fix the lumbar support.

Accordingly, when the lumbar support 202 is forced back, the support 400 has elasticity and thus feels comfortable.

Here, although not shown, the two lumbar support 201 may be configured by fitting the small elastic element 202 between the elastic connecting rod 207 and the lumbar support in a zigzag shape at the time of fastening.

Next, as a fourth embodiment, as shown in FIG. 4B, the lumbar support 202 at the lower end of the chair back 101 as shown in the first embodiment is respectively provided in the elastic connecting rod 217 having a U shape. It is fastened by the bolt by the support 402 and the fastening hole 217a formed separately from the support 400, and the lumbar backrest 202 is fastened by the bolt by the fastening hole 217b.

In addition, the shape of the two lumbar support 201 respectively surrounds both sides of the hip of the human body, and is concave when viewed in the axial direction (X axis) perpendicular to the seat surface, and the horizontal axis direction (Y axis) which is horizontal to the seat surface. ), The parts in contact with the hip and lumbar region are formed in a straight line, and are directly connected to the connecting rod and the lumbar support or the support by bolts, etc., to fix the lumbar support.

Accordingly, when the lumbar support 202 is subjected to the back force, the support 400 has elasticity, so that the supporter 400 is acted separately from the chair back 101 to feel a separate comfort.

Here, although not shown, the two lumbar support 201 may be configured by fitting the small elastic element 202 between the elastic connecting rod 217 and the lumbar support in the form of a U-shape at the time of fastening.

The lumbar support as described above is not applicable only to the back of the dual back style shown as an embodiment, it will be appreciated by those skilled in the art that it is also applied to the backrest structure formed of one.

Moreover, since this action is connected to a separate connection so as to contact the hip area, the elasticity of the connection is felt when the lumbar support is forced backward.

Next, the structure of the backrest 1 may be formed in the following structure to straighten the spine.

That is, Figure 6a is a schematic perspective view showing two embodiments of the chair back of the present invention, Figure 6b is a schematic perspective view showing three embodiments of the chair back of the present invention.

Figure 7a is a plan view showing the arrangement of the chair back at the time of initial seating according to the second and third embodiments of the chair back of the subject innovation of the present invention, Figure 7b is a seat after the seat according to the second and third embodiments of the backrest of the subject innovation of the present invention It is a top view which shows the arrangement state of a chair back.

Here, as shown in FIGS. 6A and 6B, the structure of the chair backs 100 and 100 ′ of the second and third embodiments of the back of the chair revolves relatively to the back of the back 12 than the back 13. The groove is formed in a round shape that can support the back in the middle, and the groove is formed in a vertical line when viewed from the side to accommodate the left and right parts, and the chair back 100 The upper and lower ends of the 100 'are formed with gentle curved portions 12a and 12b.

Referring to the effects of the second and third embodiments of the chair back of the subject innovation configured as described above are as follows.

As shown in FIG. 7A, the back of the seated person first touches the inside of the left and right backrests 100 and 100 ′ protruding when the seated person is seated on the chair.

As described above, while the seated person's back touches the inner side of the left and right backrests 100 and 100 ', the inner side of the left and right backrests 100 and 100' is pushed backward and the left and right backrests 100 and 100 '. The outer side of the) is pushed forward to support the vertebrae and back of the seat by moving the left and right back (100, 100 ') to fit the body of the seat.

Figure 7b is a plan view showing an embodiment when seating according to the present invention, as described above of the left and right backrest (100, 100 ') protruding when the seated person is in close contact with the back to the left and right backrest (100, 100') The inner side is pushed to the rear, and the outer side of the left and right backrest 100, 100 'protrudes to the front part so that the left and right backrest 100, 100' is moved to fit the body structure of the seated person. It can also protect the spine.

Reference numeral 20, 20 'is a protective carbide of a rubber elastic piece that the left and right backrest 100, 100' shown in the patent 2005-1974 developed by the applicant is connected to the fastening support.

Therefore, the present invention is to improve the chair back to the back seat is provided in a pair to surround the seat, left, right part of the seat, and to form a chair back around the spine, and to form a lumbar support in the lower part, the lumbar spine The backrest is formed in two to support the hip part of the human body to seek comfort, and the support or elastic element is formed to have elasticity to provide comfort, and furthermore, the chair back is straight to the spine so that the spine can be corrected. In contact with the movement and at the same time the effect of maintaining the spine straight.

Moreover, the existing lumbar support is formed in a structure that pushes the lumbar region, but the present invention is also effective to push the lumbar region while wrapping like the back of the chair.

Claims (8)

In the back of the chair for back lumbar having a seat back and a chair back, and having a lumbar support at the lower end of the chair back, the lumbar support is formed in two on both sides, but is made of a small intermediate frame stand by the small elastic element 202 ( 203 is coupled by a bolt on the side, and in the middle of the small middle rail 203 is coupled to the seat plate by connecting means, the shape of the lumbar support concave in the horizontal direction from above, and vertical in the side Backrest for backrest, characterized in that it has a straight shape According to claim 1, the chair backrest has two backrest outer plates (101) laterally separated from each other while the backrest outer plates (101) are supported by bolts (108) with elastic elements (102) on the intermediate crosspiece (103). Combined, the structure and shape of the two backrest outer plate 101 is a shape that surrounds the back of both sides of the waist axis of the human body, when viewed in the axial direction (X axis) perpendicular to the seat surface two backrest outer plate 101 ) The whole structure of the) is rounded like an oval shape as a whole so as to support the back in a line, and when viewed in the horizontal axis direction (Y axis), which is a horizontal plane on the sheet surface, the back plate 101 is in the shape of a needle The curved portion 111 protrudes from the left and right sides, and the portions of the backrest outer plate 101 that contact the spinal column are formed in a straight line, and the backrest chair for backrest, characterized in that it is formed in a straight line. 3. The connecting means according to claim 1 or 2, wherein the connecting means is coupled to the chair support 400 by bolts 204a and 204b by a backrest connecting rod 204 at the middle of the small middle rail stand 203. Backrest for backrest, characterized in that The lumbar support chair back according to claim 1 or 2, wherein the lumbar support has a needle-shaped recess 211 formed at a lower end thereof. The backrest chair according to claim 1 or 2, wherein the connecting means is coupled by a chair support 401 at a middle portion of the small middle bench 203. The lumbar support chair backrest according to claim 5, wherein the lumbar support has a needle-shaped recess 211 formed at a lower end thereof. According to claim 1 or claim 2, The connecting means is fastened with the support 400 by the elastic connecting rod 207 each of the chair back (201) formed in two chairs 201 formed on both sides in place of the middle rail (207a) is fastened with bolts, lumbar support chair backrest, characterized in that the back and the backrest 202 is fastened with bolts by fastening holes (207b) According to claim 1 or claim 2, The connecting means is supported by the support 402 and the fastening hole (217) by the elastic connecting rod 217 respectively in the chair back 201 formed in two sides in place of the middle side stand 217a) is fastened by bolts, lumbar backrest 202 and lumbar support chair backrest, characterized in that is fastened by bolts by fastening holes (217b)

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