KR100839770B1 - A supporting plate for utilizing in lumbar support - Google Patents

Abstract

A supporting plate for a lumber support is provided to distribute pressure concentrated on a back of an occupant by increasing an area of a bending portion formed on a supporting member. A supporting plate(21) for a lumber support comprises a support member formed at two sides of a body frame, a traction member, a rotating bracket installed on an upper flange of the body frame, a wire sliding block fixed to a lower part of the body frame, a guide bar fixed to the rotating bracket and, a traction block. The traction block includes a body fixed to the guide bar, a wire supporting part and a wire member. A bending portion(32) is fixed to the support member at upper and lower parts. The bending portion includes an upper bending part(33), a lower bending part(34) and a flat part(35).

Description

Reinforcement plate for lumber support {a supporting plate for utilizing in lumbar support}

1 is a view schematically showing a conventional lumber support reinforcement plate, Figure 1a is a front view of the reinforcement plate, Figure 1b is a side view of the reinforcement plate is bent in an arc shape toward the back of the seat occupant of the vehicle seat occupant,

Figure 2 is a perspective view schematically showing the installation structure of the lumber support provided with a lumber support reinforcing plate according to the present invention,

Figure 3 shows a lumber support reinforcement plate according to the first embodiment of the present invention, Figure 3a is a front view of the reinforcement plate, Figure 3b is a side view of the reinforcement plate showing a state in which the flat portion is bent when the towing means is operated,

Figure 4 shows a lumber support reinforcement plate according to a second embodiment of the present invention, Figure 4a is a front view of the reinforcement plate, Figure 4b is a side view of the reinforcement plate showing a state in which the flat portion is bent when the towing means is operated,

Figure 5 shows a lumber support reinforcement plate according to a third embodiment of the present invention, Figure 5a is a front view of the reinforcement plate, Figure 5b is a side view of the reinforcement plate showing a state that the flat portion is bent when the towing means is operated,

Figure 6 shows a lumber support reinforcement plate according to a fourth embodiment of the present invention, Figure 6a is a front view of the reinforcement plate, Figure 6b is a side view of the reinforcement plate showing a state in which the flat portion is bent when the towing means is operated.

Explanation of symbols used in the main part of the drawing

11: support member 12: body frame

13: side wing 14: towing block

16: wire sliding block 17: guide bar

18: actuator 19: wire means

23: wire fixing portion 24: guide bar guide hole

30: reinforcement plate 32: reinforcement plate bending

33: upper bend 34: lower bend

35: flat part

The present invention relates to a reinforcement plate for the lumber support, and specifically, by increasing the cross-sectional area of the bent portion, when the support member and the reinforcement plate protrude in an arc shape on the vehicle seat back, the pressure applied to the back of the seat occupant is concentrated through the surface contact. It relates to a reinforcement plate for lumber support that can be dispersed.

In general, the lumber support is installed inside the vehicle seat back, and the support plate protrudes in an arc shape according to the operation of the towing means, so that the lumbar support on the body of the seat occupant of the vehicle seat includes the lumbar region or the whitish portion, etc. However, the seated person should be able to comfortably maintain his back posture even if he is sitting on the vehicle seat for a long time.

The present applicant has applied for an improved lumber support support structure in which the lower part of the support member is slid to the upper side based on the traction means mounting block disposed at the center of the support member for stably bending the support member on the vehicle seat back. (Korean Patent Application No. 2006-133319 dated 26 December 2006).

The above-described lumber support jaw includes a side frame 13 in which a plurality of side wings 13a, 13b, and 13c extend to both sides of the body frame 12, and the spine of the occupant based on approximately the center of the body frame 12. A support member 11 that is bent to form an arc or arc shape projecting toward the portion and the back portion;

A pull means (20) having a wire means (19) drawn in or drawn out by an actuator (18), said pull means (20) pulling upward of a lower portion (12b) of said body frame (12);

A pivot bracket 15 pivotally mounted to the upper flange 26 of the body frame 12;

A wire sliding block (16) having a wire fixing part (23) and a guide bar guide hole (24) and fixed to a lower portion (12b) of the body frame (12);

An upper portion is fixed to the pivot bracket 15, and a lower portion of the guide bar 17 is slidably coupled to the guide bar guide hole 24;

A body 27 having both sides fixed to the guide bar 17 and a wire support 25 formed at an upper portion of the center of the body 27, and a wire drawn in or drawn out when the traction means 20 is operated. And a traction block 14 for supporting the wire means 19 such that the means 19 pull the wire sliding block 16 upward based on the wire support 25.

The reinforcement plate 21 applied to the lumber support has a predetermined adhesive means such as fusion or welding on the back side of the support member 11 to provide an appropriate support pressure to the back part L of the seated person when protruding in an arc shape. It is fixed through.

As shown in FIGS. 1A and 1B, since the reinforcing plate 21 is typically made of a flexible elastic member having elasticity itself, the support member 11 when viewed in the side view when the towing means 20 is operated. ) And bent in the form of an arc to provide direct pressure to the back (L), including the seat of the seated person.

By the way, the conventional lumber support reinforcement plate 21 is a point in contact with the back portion (L) when bending in an arc shape as shown in Figure 1b adjacent to the vertex P as shown in FIG. Is achieved.

That is, in the process of protruding the support member 11 and the reinforcement plate 21 for supporting the back portion L, the support member 11 and the reinforcement plate 21 have an arc shape or a small arc with a diameter approximately based on the vertex P. In the initial stage of the protruding process, a pressure concentration phenomenon occurs with the line contact between the vertex P portion and the dorsal portion (L).

Therefore, from the beginning of the protruding process of the support member and the reinforcing plate, the seated person feels a local pressure on the back part L, and is continuously subjected to intensive pressure at the vertex site even after the protrusion is completed.

Therefore, in case of long-term use, the local extreme pressure is continuously increased on the back of the seated person who contacts the protruding reinforcement plate, which forms a vertex, which causes pain, as well as twisting or unstable back posture for pain avoidance. There is a disadvantage of losing.

The object of the present invention for solving the above problems,

An object of the present invention is to provide a lumber support reinforcement plate capable of dispersing pressure generated by the support member of the lumber support applied to the seat of the seat and the protrusion of the reinforcement plate.

It is another object of the present invention to provide a lumber support reinforcement plate which can comfortably support the back part of the seated person through the surface contact due to the deformation of the back part of the seated person and the bent portion of the reinforcement plate.

In order to achieve the above object, the present invention

A support member having a side frame having a plurality of side wings extending to both sides of the body frame, the support member being bent to form an arc or arc shape projecting toward the vertebral part and the back part of the occupant based on an approximately center of the body frame;

A pull means having a wire means drawn in or drawn out by an actuator, said pull means for pulling a lower portion of said body frame upward;

A pivot bracket pivotally mounted to an upper flange of the body frame;

A wire sliding block having a wire fixing portion and a guide bar guide hole and fixed to the lower portion of the body frame;

An upper portion is fixed to the pivot bracket, and a lower portion of the guide bars is slidably coupled to the guide bar guide holes;

A body having both sides fixed to the guide bar and a wire support formed at an upper portion of the center of the body, wherein a wire means drawn in or drawn out during operation of the towing means moves upward from the wire sliding block based on the wire support; In the lumber support reinforcement plate installed in the lumber support comprising a; traction block for supporting the wire means to pull,

The upper portion is fixed to the upper support member, the lower portion is fixed to the lower portion of the support member, characterized in that the reinforcement plate for the lumber support formed by forming a bent portion in flat contact with the back portion of the seating body on one side of the reinforcement plate body do.

In addition, the present invention is characterized in that a plurality of bent portions formed on the lower side from the center of the longitudinal direction of the reinforcing plate body.

In addition, the present invention is characterized in that the width W1 of the bent portion is formed by forming a top bent portion and a bottom bent portion smaller than the width W2 of the reinforcing plate body, and constitutes a flat portion between the top bent portion and the bottom bent portion.

In addition, the present invention is characterized in that it is formed by forming a long hole in the bent portion, the width D2 of the upper end and the lower end of the long hole than the width D1 of the central long hole so that the long hole has a substantially dumbbell shape.

In addition, according to another embodiment of the present invention, the width D2 of the upper end and the lower end of the long hole is characterized by being formed smaller than the width D1 of the central long hole.

In addition, the present invention is characterized in that the long hole formed in the bending portion formed by forming a diamond.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the reinforcement plate for lumber support according to the present invention.

FIG. 2 is a perspective view schematically illustrating an installation structure of a lumber support provided with a lumber support reinforcing plate according to the present invention, and FIG. 3 is a view showing a lumber support reinforcing plate according to a first embodiment of the present invention. 3A is a front view of the reinforcement plate, and FIG. 3B is a side view showing a state where the flat portion of the reinforcement plate is bent when the traction means is operated. FIG. 4 is a lumber support reinforcement plate according to the second embodiment of the present invention. Figure 4b is a front view of the reinforcement plate, Figure 4b is a side view showing a state in which the flat portion is bent when the traction means, Figure 5 shows a lumber support reinforcement plate according to a third embodiment of the present invention, Figure 5a 5B is a side view showing a state where the flat portion is bent when the traction means is operated, and FIG. 6 is a lumber support reinforcement plate according to a fourth embodiment of the present invention, and FIG. 6A is a front view of the reinforcement plate. 6b the dog It means a side view showing the state in which a flat portion bent during operation.

The reinforcement plate for the lumber support according to the present invention is formed so as to apply pressure in a flat state at the contact point to the back part L of the seated person when protruding integrally with the support member of the lumber support. Reinforcement plate, 32 is a bend, 33 is a bend at the top, 34 is a bottom bend, 35 is a flat portion, 36 is a long hole, 37 is an upper end of the long hole, and 38 is a lower end of the long hole. .

The reinforcing plate for lumber support according to the present invention is easily fixed to the back side of the support member 11 constituting the lumber support.

According to a preferred embodiment, the present invention has a side frame 13 extending a plurality of side wings (13a, 13b, 13c) on both sides of the body frame 12, the reference to the approximately center of the body frame 12 A support member 11 that is bent to form an arc or arc shape that protrudes toward the vertebral and back portions of the occupant;

A pull means (20) having a wire means (19) drawn in or drawn out by an actuator (18), said pull means (20) pulling upward of a lower portion (12b) of said body frame (12);

A pivot bracket 15 pivotally mounted to the upper flange 26 of the body frame 12;

A wire sliding block 16 having a wire fixing part 23 and a guide bar guide hole 24 and fixed to the lower part 12b of the body frame 12;

An upper portion is fixed to the pivot bracket 15, and a lower portion of the guide bar 17 is slidably coupled to the guide bar guide hole 24;

A body 27 having both sides fixed to the guide bar 17 and a wire support 25 formed at an upper portion of the center of the body 27, and a wire drawn in or drawn out when the traction means 20 is operated. A reinforcement plate for lumber support comprising a traction block 14 for supporting the wire means 19 such that the means 19 pull the wire sliding block 16 upward based on the wire support 25. To 30,

The upper part is fixed to the upper part of the support member 11, the lower part is fixed to the lower part of the support member 11, and is formed by forming the bent portion 32 on one side of the reinforcing plate body 31.

According to a preferred embodiment of the present invention, as shown in Figures 3 to 6, the reinforcement plate 30 with respect to the back portion (L) of the seated person from the center of the longitudinal direction of the reinforcement plate body 31 It is made by forming the bent portion 32 in flat contact with the surface

The bent portion 32 is formed such that its width W1 is smaller than the width W2 of the reinforcing plate body 31. Preferably, the bend 32 has an upper bent portion 33 and a lower bent portion 34, the width W1 of which is smaller than the width W1 of the reinforcing plate body 31, and the upper bent portion 33 and the lower portion. The flat part 35 is comprised between the bending parts 34.

When the reinforcement plate 30 receives an external force by the upward traction of the wire sliding block 16, the upper bent portion 33 and the lower bent portion 34, even if the reinforcement plate body 31 is in an arc shape, the upper bend It forms an obtuse angle based on the part 33 and the lower bent part 34 to perform the function of bending the flat part 35. Therefore, the back portion L of the seated person is subjected to the supporting pressure through the cross-sectional area of the flat portion 35.

The bent portion 32 is preferably formed in the lower side based on the longitudinal center of the reinforcing plate body 31 in consideration of the position of the back portion (L) including the lumbar spine or waist of the seated person, the body shape of the seated person In some cases, it may be modified by the upper side, the center side, or the like.

On the other hand, according to another embodiment of the present invention, the bent portion 32 can form a plurality of bent portions 32 in the lower side from the center in the longitudinal direction of the reinforcing plate body 31, in this case, The cross-sectional area of the part flatly contacting the back part L of the seated person is further increased.

According to another embodiment of the present invention, as shown in FIG. 4, the long hole 36 is formed in the bend 32, and the long hole upper part 37 and the lower end 38 are formed such that the long hole 36 has a substantially dumbbell shape. ) Diameter D2 is formed larger than the width D1 of the long hole center portion.

In this case, abrupt bending occurs so that the reinforcing plate 30 becomes an obtuse angle from the reinforcing plate body 31 based on the long hole upper hole 37 and the lower hole 38, and the flat portion 35 is the long hole 36. It is to be understood that it is flat as the size corresponding to the length of) as described above.

In the description of the present invention, although the top hole 37 and the bottom hole 38 are shown in the shape of the through hole, the upper end of another geometric shape having a width D2 relatively larger than the width D1 of the center hole and Of course, it can be deformed to the lower end.

Meanwhile, according to another embodiment of the present invention, as shown in FIG. 5, the width D1 of the central portion of the long hole 36 is formed to be smaller than the upper and lower portions D2 of the long hole 36 (see FIG. 5A). .

In this case, each of the upper and lower ends of the reinforcing plate 30 fixed to the support member 11 and the support member 11 by the operation of the traction means 20 is formed in a size smaller than the width of the central portion of the long hole 36. ) Is projected toward the seat L of the seated person, and as shown in FIG. 5B, the bending function is performed based on the upper end and the lower end of the long hole.

In the above embodiment, the support member 11 and the reinforcing plate 30 may make instantaneous line contact similarly to the prior art in the initial contact with the back part L of the first seated person. When the operation is sufficiently performed so that the support member 11 and the reinforcement plate 30 are completely protruded, a flat portion 35 for making surface contact is formed between the upper end and the lower end of the long hole. In this case, it is preferable to form the long hole 36 formed in the said bending part 35 in diamond shape.

Reference numerals 21a and 21b denote upper and lower portions of the reinforcement plate, respectively, 21c denotes a fastening hole, 22 a pivot pin, and 28 a fastening member for integrally fixing the support member and the reinforcement plate and the wire sliding block.

Hereinafter, the effect of the reinforcement plate for lumber support by this invention is demonstrated.

The seated person sitting on the vehicle seat operates the traction means 20 of the lumber support by adjusting a predetermined switch (not shown) for comfortable support of the back part L.

The actuator 18 is rotated by the operation of the traction means 20, whereby the wire means 19 are drawn in, so that the body frame 12 and the reinforcement plate 30 of the support member 11 and the wire sliding block 16 are rotated. ) Is towed upwards.

At this time, the upper bent portion 33 provided in the bending portion 32 in the initial process of the support member 11 and the reinforcement plate 30 fixed to the back of the support member 11 elastically protrudes toward the seat of the seated person. And the reinforcing plate 30 is bent based on the lower bent portion 34.

The stress that deforms the reinforcement plate body 31 by the traction force generated from the traction means 20 is concentrated on the upper bent portion 33 and the lower bent portion 34 to induce bending deformation of the flat portion 32. Because.

As such, the stress concentration of the reinforcing plate body 31 formed by the traction force and the bending deformation of the flat portion 32 are the upper end portions 37 of the long holes 36 according to the second, third and fourth embodiments. The same applies to the lower end portion 38).

Ultimately, the flat portion 32 is deformed and protrudes so that the bent portion 32 is approximately obtuse angle with respect to the reinforcing plate body 31 and the surface of the flat portion 32 is approximately perpendicular from the horizontal plane.

Therefore, the flat portion 35 formed between the upper bent portion 33 and the lower bent portion 34 provided in the bent portion 32 at the initial protruding timing of the reinforcement plate 30 by the traction means 20 is seated. Surface contact is made with the back of the ruler.

The pressure acting on the dorsal part of the seated person through the bent part 32 is distributed in proportion to the surface cross-sectional area of the flat part 35. This avoids a phenomenon in which pressure is concentrated in the vicinity of the apex of the reinforcing plate 15 and the support member 11 contacting the back portion L while the conventional lumber support reinforcing plate 15 is bent in an arc shape. .

That is, the reinforcing plate 30 according to the present invention in the initial protrusion process forms a predetermined planar structure and applies pressure to the back part L of the seated person. Accordingly, the seated person can maintain a comfortable posture without local pressure.

On the other hand, since the reinforcing plate 30 is fixed to the back surface of the support member 11, the bent portion 32 and the flat portion 35 of the reinforcing plate 30 is the reinforcing plate body ( The deformation forming the acute angle on the basis of 31) is prevented. Therefore, the bent portion 32 and the flat portion 35 of the reinforcing plate 30 exert pressure while maintaining a constant surface contact with the back part L of the seated person not only at the initial protruding time but also at the fully protruding time.

Therefore, the initial pressure of the reinforcing plate 30 which elastically protrudes by the flat portion 35 according to the present invention is dispersed and acts on the back part L of the seated person, as well as the support member 11 and the reinforcing plate 30. The surface pressure of the bent part 32 acts on the back part L of the seated person even after the protrusion of) is completed.

On the other hand, according to the second embodiment, the third embodiment, the fourth embodiment, and the like according to the present invention, the reinforcement plate 30 has a bent portion 32 formed in the long hole 36 and the upper end 37 and the lower end 38 of the long hole. According to another embodiment, even if the reinforcing plate bending portion that makes surface contact with the back portion of the seated occupant according to the technical idea of the present invention is configured above the support member or the reinforcing plate, the operation is the same as described above. Detailed description will be omitted.

Description of the above-described reinforcement plate for lumber support according to the present invention is intended to describe in detail enough to be able to easily carry out the invention of those skilled in the art to which the present invention pertains, and therefore the technical of the present invention The idea and scope are not limited.

As described above, the lumber support reinforcement plate according to the present invention can disperse local pressure concentrated at the back of the seat by the support member of the lumber support and the reinforcement plate, and even after the protrusion is completed, the bending portion of the reinforcement plate is approximately flat. By comfortably supporting the back of the seated person through the surface contact, the effect is very excellent, such as to maintain a comfortable posture even when sitting on the vehicle seat for a long time.

Claims (6)

A support member having a side frame having a plurality of side wings extending on both sides of the body frame, the support member being bent to form an arc or arc shape protruding toward the vertebral part and the back part of the occupant based on an approximately center of the body frame; A pull means having a wire means drawn in or drawn out by an actuator, said pull means for pulling a lower portion of said body frame upward; A pivot bracket pivotally mounted to an upper flange of the body frame; A wire sliding block having a wire fixing portion and a guide bar guide hole and fixed to the lower portion of the body frame; An upper portion is fixed to the pivot bracket, and a lower portion of the guide bars is slidably coupled to the guide bar guide holes; A body having both sides fixed to the guide bar and a wire support formed at an upper portion of the center of the body, wherein a wire means drawn in or drawn out during operation of the towing means moves upward from the wire sliding block based on the wire support; In the lumber support reinforcement plate installed in the lumber support comprising a; traction block for supporting the wire means to pull, The upper part is fixed to the upper support member, the lower part is fixed to the lower portion of the support member, and formed on the one side of the reinforcement plate body of the upper bent portion and the lower bent formed smaller than the width of the reinforcement plate body, the upper bent portion And a flat part formed between the lower bent portions to form at least one bent portion that is in flat contact with the back of the seated person. delete delete The method according to claim 1, A lengthwise long hole is formed in the bending portion, and the width D2 of the upper end and the lower end of the long hole is formed to be larger than the width D1 of the central long hole so that the long hole has a substantially dumbbell shape. The method according to claim 1, A lumber support reinforcement plate is formed by forming a long hole in the bending portion, and forming a width D2 of the upper end portion and the lower end portion of the long hole smaller than the width D1 of the central portion of the long hole. The method according to claim 1, Lumber support reinforcing plate, characterized in that formed by forming a long hole formed in the bending portion of the diamond.

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