WO2011162452A1 - Lumber support assembly - Google Patents

Abstract

The present invention relates to a lumber support assembly, more specifically, an embodiment of the present invention, which is a lumber support assembly that is installed on the back of a car seat, thereby supporting the spine and the back parts of a passenger, and comprises: a support member that is installed inside the back of a seat; a guide bar that is mounted length-wise on the back of the support member, and couples with the upper portion of the support member so as to enable the upper end thereof to pivot; a spring panel, in which the upper end thereof is coupled via hinge to a hinge bracket provided on one side of the guide bar, and the lower end thereof is coupled so as to enable sliding motion thereof along the guide bar, and which is curved towards the direction of the support member; and an operating means having one end thereof coupled to one side of the hinge bracket and the other end thereof coupled to one side of the lower end of the spring panel, so as to provide a compressive force to curve the spring panel, and thus the lumber support assembly of the present invention improves the price competitiveness by enabling modularization, and absorbs the impact being applied to the back of a passenger while driving.

Description

Lumber Support Assembly

The present invention relates to a lumber support, and more particularly, to a lumber support assembly installed inside a seat back of a vehicle to support a spine and a back part of a passenger.

Seats are installed inside the vehicle to allow passengers to sit.These seats are seat cushions that support the hips of the passengers, seatbacks that support the back, armrests that can put the arms of the passengers, and headrests that support the heads. Is made of.

Looking in detail the seatback associated with the present invention, a seatback frame serving as a skeleton of the seatback is installed inside the seatback, a lumber support assembly for supporting the back of the passenger is installed inside the seatback frame.

At this time, the lumber support assembly has a variable structure so as to fit the spine shape of the occupant in order to reduce the fatigue of the occupant during vehicle operation.

Looking at the conventional variable lumber support assembly, after forming a protrusion on the rotating rod is coupled to the seat back frame, the support rod for supporting the waist of the occupant is installed on the protrusion, the rotating rod is rotated according to the position of the occupant sitting on the seat The support member is moved forward and backward of the seat back frame to support the occupant's waist.

However, such a conventional lumber support structure is assembled and manufactured by a large number of parts, resulting in high failure rate, high production cost and time, and vibration and shock caused by road conditions or traffic conditions while driving. As it is transmitted to the waist of the occupant through the protrusion, the occupant easily feels tired or there is a risk of injury.

The present invention is to solve the problems as described above, an embodiment of the present invention is a lumber support assembly that is installed in the seat back of the vehicle to support the spine and back of the occupant, the support member is installed inside the seat back And, it is installed in the longitudinal direction at the rear of the support member, the guide bar is coupled to the upper end of the support member pivotally, the upper end is hinged to the hinge bracket provided on one side of the guide bar, the bottom slides along the guide bar A lumber which is movably coupled and includes a spring panel that is bent in a direction of the support member, and one end is coupled to one side of the hinge bracket, and the other end is coupled to one lower end of the spring panel to provide a compressive force to bend the spring panel. Related to the support assembly.

According to one embodiment of the present invention, in the lumber support assembly installed on the seatback of the vehicle to support the spine and the back of the occupant, the support member is installed in the seatback and is installed in the longitudinal direction at the rear of the support member. The guide bar is pivotally coupled to the upper end of the upper support member, and the upper hinge is coupled to the hinge bracket provided at one side of the guide bar, and the lower end is slidably coupled along the guide bar, and is curved in the direction of the support member. A lumber support assembly is provided that includes a spring panel and driving means having one end coupled to one side of the hinge bracket and the other end coupled to one bottom side of the spring panel to provide a compressive force to bend the spring panel.

Here, the fitting portions are formed on both upper sides of the support member, respectively, and the guide bar has a 'U' shape, and both upper ends thereof are bent to face each other and pivotally coupled to the fitting portions.

In this case, the fitting portion includes a protrusion formed to protrude from the support member to support the upper end of the guide bar, and an elastic wing portion extending from the upper side of the protrusion to elastically support the upper end of the guide bar in the direction of the protrusion.

At this time, the spring panel, the fixing member which is hinged to one side of the hinge bracket, the moving member coupled to be slidably movable along the guide bar on the lower side of the guide bar, and interposed between the fixing member and the moving member, the elastic force to the moving member It comprises at least one leaf spring to provide.

In this case, the fixing member or the moving member may be insert injection molded integrally with the leaf spring.

In addition, the fixing member includes a hinge coupling portion coupled to the hinge bracket, and a leaf spring coupling portion extending from one side of the hinge coupling portion and coupled to the upper end of the leaf spring.

At this time, the hinge coupling portion is hinged to the hinge bracket by the hinge pin, one side of the outer peripheral surface of the hinge pin is knurled to prevent separation.

In addition, it is preferable that an incision portion having a predetermined length in the longitudinal direction is formed on one side of the leaf spring.

In addition, the driving means may include at least one coil spring having an upper end fixed to one side of the hinge bracket, an actuator cable fixed to a locking groove coupled to a distal end of the coil spring, and having a core wire provided at one side of the moving member; It may include an actuator for pulling the core wire to slide the moving member toward the fixed member.

In addition, the driving means, both ends are fixed to both sides of the moving member, the middle portion may further include a traction wire bent upward to form a locking portion, wherein the core wire of the actuator cable is coupled to the locking portion of the traction wire.

At this time, the coil spring, the upper end is fixed to each other on both sides of the hinge bracket, the lower end is preferably coupled to the front end of the actuator cable, it is preferably composed of a pair arranged to form a '∨' shape as a whole. In the space between the pair of coil springs, an air flow opening for vehicle air conditioning is disposed.

On the other hand, the drive means, both ends of the hinge bracket is fixed to the both ends and the middle portion is bent downward to form the engaging portion, the coil spring to the upper end is fixed to the engaging portion of the towing wire, the tip portion is coupled to the lower end of the coil spring It is possible to include an actuator cable is fixed to the locking groove is provided on one side of the moving member and the actuator to pull the core wire to slide the moving member toward the fixed member.

At this time, the air flow opening for the vehicle air conditioning may be disposed in the space consisting of the traction wire and the hinge bracket.

On the other hand, the locking groove is such that the through hole into which the core wire is inserted through, the guide hole extending to one side of the through hole, the fixing hole extending in the direction perpendicular to the guide hole, and the locking hole provided at the tip of the core wire are supported. It includes a depression formed in the rim of the fixing hole.

In addition, it is preferable that the support member has a pair of separation prevention jaws for preventing the left and right separation of the spring panel in the longitudinal direction to be spaced apart from each other, and at least one pair of bundling ring corresponding to the leaf spring is formed on both sides of the leaf spring It is preferable to protrude to support the.

According to the lumber support assembly according to an embodiment of the present invention, it is possible to appropriately adjust the degree of protrusion of the lumber support according to the physical condition of the occupant, it is possible to modularize as a simple structure to reduce the production cost and time to improve the price competitiveness The lumber support assembly is provided, which absorbs vibrations and shocks applied to the lumber support while driving the vehicle, thereby providing a comfortable driving environment and providing a comfortable driving environment.

1 is a perspective view of a lumber support assembly according to a first embodiment of the present invention.

Figure 2 is an exploded perspective view of the lumber support assembly according to the first embodiment of the present invention.

3 is a rear view of the lumber support assembly according to the first embodiment of the present invention.

Figure 4 is an operating state of the lumber support assembly according to the first embodiment of the present invention.

5 is a state in which the lumber support assembly according to the first embodiment of the present invention is assembled to the seat back frame.

6 is a schematic view of a lumber support assembly according to a second embodiment of the present invention.

7 is a schematic view of a lumber support assembly according to a third embodiment of the invention.

8 is a schematic view of a lumber support assembly according to a fourth embodiment of the invention.

Hereinafter, a lumber support assembly according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

In addition, the following examples are not intended to limit the scope of the present invention but merely illustrative of the components set forth in the claims of the present invention, which are included in the technical spirit throughout the specification of the present invention and constitute the claims Embodiments that include a substitutable component as an equivalent in the element may be included in the scope of the present invention.

First embodiment

1 is a perspective view of a lumber support assembly according to a first embodiment of the present invention, Figure 2 is an exploded perspective view of a lumber support assembly according to a first embodiment of the present invention, Figure 3 is a lumber according to a first embodiment of the present invention 4 is a rear view of the support assembly, FIG. 4 is an operation state diagram of the lumber support assembly according to the first embodiment of the present invention, and FIG. 5 is a view showing a state in which the lumber support assembly according to the first embodiment of the present invention is assembled to the seat back frame. State diagram.

The present invention relates to a lumber support assembly installed inside the seat back of the vehicle and supporting the spine and the back of the occupant while being deformed according to the physical condition of the occupant. The lumber support assembly will be described below with reference to FIGS. .

As shown in Figures 1 to 3, the lumber support assembly 100 according to the first embodiment of the present invention, the support member is installed in the seat back frame 10 to support the spine and back of the occupant ( 200 and a guide bar 300 installed in the longitudinal direction at the rear of the support member 200 and having an upper end pivotably coupled to an upper portion of the support member 200, and a hinge provided at one side of the guide bar 300. The upper end is hinged to the bracket 330 and the lower end is coupled to the slide bar along the guide bar 300 and the spring panel 400, which is curved in the direction of the support member 200, and one end of the hinge bracket 330 The other end is coupled to the other end of the spring panel 400 is made to include a drive means 500 for providing a compressive force so that the spring panel 400 is curved.

Here, the seatback frame 10 (refer to FIG. 5) is installed inside the seatback to maintain the shape of the seatback, and is connected to the seat cushion to support the load of the occupant, and is formed in a shape corresponding to the outer shape of the seatback.

In addition, the support member 200 supports the spine and the back of the vehicle occupant, and may be made of a synthetic resin material or a thin metal material, and are formed to be symmetrically about the center and have a plurality of side wings 210 on both sides. ) Is formed to be spaced apart from each other in the longitudinal direction of the support member 200, in which the central portion is slightly concave in the longitudinal direction in response to the shape of the vertebra of the occupant, and each side wing 210 is slightly inclined forward It is preferable that it is formed in the form of surrounding the back portion, the front end portion is preferably slightly bent in the opposite direction in order to prevent injury of the occupant or damage of the side wing 210.

In addition, the upper and both sides of the support member 200, the fitting portion 220 is formed so that both upper ends of the guide bar 300 to be described later can be pivotally coupled, respectively, the lower both sides of the spring panel 400 to be described later The separation prevention jaw 240 is formed to protrude in the longitudinal direction of the support member 200 in order to prevent the left and right separation, and the pair of ring springs 250 are described later on one side of the separation prevention jaw 240. It is formed spaced apart from each other to correspond to the width of).

Guide bar 300 is made of a 'U' shape of the wire is bent of a predetermined thickness as a whole, the top is opened, and is assembled to the seat back frame 10 by the clip 11, the guide bar 300 The upper ends of both sides are bent inwardly so that the ends thereof face each other, and a bent portion 310 is formed, and the closed lower end of the guide bar 300 is rearward to prevent the moving member 420 of the spring panel 400 described later from being separated. It is bent and acts as a stopper.

Here, the bent portion 310 of the guide bar 300 is pivotally coupled to the fitting portion 220 of the support member 200 described above, the fitting portion 220 of the support member 200 from the support member 200. A protrusion 221 is formed to protrude to support the bent portion 310 of the guide bar 300, and is formed to extend downward from the upper side of the protrusion 221 to protrude the bent portion 310 of the guide bar 300. It comprises an elastic wing 222 elastically pressurized in the direction of), guides the insertion direction when assembling the bent portion 310 on the outside of the protrusion 221, while leaving the guide bar 300 It is preferable that the rib 224 for prevention protrudes.

At this time, the bent portion 310 of the guide bar 300 is pivotally fitted between the protrusion 221 and the elastic wing 222 of the support member 200, the protrusion 221 to minimize the frictional force when the coupling It is preferable that the opening 221a cut into a predetermined width and length is formed, and the elastic wing portion 222 is a protrusion portion so that the bent portion 310 of the fitted guide bar 300 is not easily separated. It is preferable that the gap with the protrusion 221 becomes narrower toward the lower side of the 221, and the lower end of the elastic wing 222 is slightly bent in the opposite direction to the protrusion 221 to facilitate insertion of the bent portion 310. It is preferably formed.

In addition, one side of the elastic wing 222 is cut in a '∩' shape, the locking wing 223 extending upward from the lower end of the elastic wing 222 is formed bent, the locking wing 223 is the upper side As the distance from the protrusion 221 is formed narrower, the tip end of the locking blade 223 is supported by the bent portion 310 of the guide bar 300, the guide bar 300 is separated from the support member 200 To prevent this from happening.

That is, the bent portion 310 of the guide bar 300 is sandwiched between the elastic wing portion 222 and the protrusion 221, while being supported by the locking blade 223, the guide bar 300 is bent portion ( It is pivotally coupled to the front and rear rotation around the 310.

On the other hand, on both sides of the guide bar 300, stepped portions 320 are each bent to be convex rearwardly at heights opposed to each other, the stepped portion 320 is hinge bracket 330 across the guide bar 300 Is coupled, both sides of the hinge bracket 330 is fixed to the step portion 320 of the guide bar 300, respectively, the upper end of the hinge bracket 330 is provided with a through sleeve 331, a spring panel to be described later It is hinged by the fixing member 410 and the hinge pin (411b) of (400).

The spring panel 400 is installed between the support member 200 and the guide bar 300, and is curved in an arc shape along the guide bar 300 to support the support member 200 by pushing forward. The degree of curvature of the 400 is adjusted by the drive means 500 to be described later.

Here, the spring panel 400 is capable of sliding up and down along the guide bar 300 on the fixing member 410 hinged to the hinge bracket 330 of the guide bar 300 and the lower side of the guide bar 300. And a moving member 420 coupled to each other, and at least one leaf spring 430 interposed between the fixing member 410 and the moving member 420 to bend and provide elastic force to the moving member 420. Is done.

At this time, the fixing member 410 and the moving member 420 is made of a synthetic resin material, the leaf spring 430 is made of a metal material, it is also possible to be separately manufactured and combined, among the fixing member 410 and the moving member 420 Either one and the leaf spring 430 may be integrally inserted into the injection molding, and both the fixing member 410, the movable member 420, and the leaf spring 430 may be integrally inserted into the injection molding.

On the other hand, the upper end of the fixing member 410 is provided with a hinge portion 411 having a shaft hole (411a) to correspond to the sleeve 331 of the hinge bracket 330 described above, the hinge bracket (411) by the hinge pin (411b) 330 and the hinge coupling, wherein both outer peripheral surfaces of the hinge pin 411b inserted into the hinge portion 411 is preferably knurled to prevent the hinge pin 411b from being separated.

In addition, the lower ends of the fixing member 410, respectively, the leaf spring coupling portion 412 is formed to extend in the direction of the moving member 420, the upper end of the leaf spring 430 is coupled to the leaf spring coupling portion 412 .

In addition, the movable member 420 includes a vertical portion 421 to which the lower end of the leaf spring 430 is coupled to both sides, and a horizontal portion 422 bent backward from the lower end of the vertical portion 421. On both sides of the horizontal portion 422, insertion holes 423 are formed so that both sides of the guide bar 300 can be inserted, respectively, and one side of the insertion hole 423 extends to the rear edge of the horizontal portion 422. The assembling groove 424 is cut and formed, and both sides of the guide bar 300 are fitted into the assembling groove 424 when the guide bar 300 and the movable member 420 are assembled, and then are supported by the insertion hole 423. .

At this time, the first fastening hole 425 and the second fastening hole 426 are formed on both sides of the horizontal part 422 for assembling the traction wire 520 which will be described later, and the center of the horizontal part 422 is formed. The hook groove 427 is formed so that the core wire 532 of the actuator cable 530 to be described later is caught and fixed, which will be described later.

In addition, the lower portion of the leaf spring 430 is preferably formed in the cut portion 431 of a predetermined length in the longitudinal direction of the leaf spring 430, which is the degree of elastic deformation according to the height of the leaf spring 430 For different purposes, the degree of deformation of the portion where the cutout portion 431 is formed is greater than that of other portions, and the width and length of the cutout portion 431 may be appropriately selected according to design conditions.

The drive means 500, the leaf spring 430 interposed between the fixing member 410 and the moving member 420 by sliding the moving member 420 of the spring panel 400 in the direction of the fixed member 410 is The elastically deformed to be curved to receive the compressive force, the leaf spring 430 is pushed back to the support member 200 to deform the seat back close to the back and back of the occupant.

Here, the driving means 500, at least one coil spring 510, the upper end of which is fixed to one side of the hinge bracket 330, both ends are fixed to both sides of the moving member 420, the middle portion is bent upwardly to the engaging portion Towing wire 520 forming the 521, the actuator 531 is coupled to the lower end of the coil spring 510 and the core cable 532 is caught by the locking portion 521 of the towing wire 520 is fixed 530 and an actuator 540 for pulling the core wire 532 to slide the movable member 420 in the direction of the fixing member 410 to bend the leaf spring 430.

At this time, both sides of the hinge bracket 330 is provided with a coupling hole 332, the pair of coil springs 510 are spaced apart from each other in the coupling hole 332 is fixed to the upper end, respectively, the lower end of the actuator cable ( 530 is coupled to the front end portion 531, it is preferable to be arranged so as to form a '∨' as a whole, a pair of coil springs 510 is also possible to be made separately after being combined, it is also formed integrally Of course it is possible.

In this case, when the air conditioner or heater of the vehicle is operated, the vehicle air conditioning air flow opening 230 for supplying cool or hot air to the seatback for the occupant may be disposed between the pair of coil springs 510 and thus, lumber It is possible to cut out and form the air-conditioning opening 230 for the vehicle air conditioner in the center of the support member 200 so as to correspond to the center of the width direction of the seat back, without having to be disposed to one side of the seat back to avoid interference with the support assembly parts, and effectively The seat back can be cooled / heated.

In addition, the actuator cable 530 is installed on one side of the seat back and extends from the actuator 540 operable by the occupant, the core wire 532 wound by the actuator 540 is protected by the actuator cable 530, It is connected to the traction wire 520 to be described later.

At this time, the traction wire 520 is a '∧' shape, both ends of the moving member 420 are spaced apart from each other and the middle portion is bent upwardly to form a locking portion 521, both ends are hook (hook) shape After being bent to each other and inserted through the first fastening hole 425 of the above-described moving member 420, the tip part is fitted into the second fastening hole 426 in the opposite direction and fixed.

Therefore, the first fastening hole 425 is formed slightly longer in the shape of a groove so that both ends bent in the hook shape of the towing wire 520 can be inserted, and the second fastening hole 426 is the front end of the towing wire 520. It is preferable that it is formed in a circular or oblong elliptic shape along the cross-sectional shape.

At this time, the core wire 532 of the actuator cable 530 described above is coupled to the holding ring 521 of the towing wire 520 is fitted to the fixing ring 533 provided at the tip.

Accordingly, when the actuator 540 is operated, the core wire 532 is wound to pull the towing wire 520 upward, and the movable member 420 having the lower end of the towing wire 520 coupled thereto is a fixed member 410. It is to elastically deform by applying a compressive force to the leaf spring 430 while moving in the) direction.

At this time, since the pair of coil springs 510 is disposed between the traction wire 520 and the fixing member 410 in a '∨' shape, it is possible to absorb vibration or shock while driving the vehicle.

On the other hand, when the elastic deformation of the spring panel 400, the leaf spring 430 is deformed while the curved portion is in contact with the support member 200, wherein the support member 200 or the spring panel 400 and the guide bar 300 torsion In order to prevent the occurrence of the leaf spring 430 is separated from the support member 200, the separation prevention jaw 240 is protruded in the longitudinal direction on both sides of the support member 200 has been described above.

In addition, in transporting and storing the lumber support assembly 100 assembled as a single module component, in order to prevent the flow of the guide bar 300 and the support member 200, a pair of release prevention jaw 240 on one side The bundle ring 250 is formed to be spaced apart from each other to correspond to the width of the leaf spring 430, when carrying and storing the support member 200 and the spring panel with the wire or string 20 through the bundle ring 250 The 400 or the guide bar 300 can be tied together and conveniently carried and stored.

In addition, the bundle loop 250 serves to prevent both the left and right flow by supporting both sides of the leaf spring 430 together with the above-described separation preventing jaw 240, so that some twist can be absorbed in the tolerance range, The spacing between the pair of loops 250 is preferably set slightly wider than the width of the spring panel 400.

Looking at the operation of the lumber support assembly 100 according to an embodiment of the present invention.

As shown in FIG. 4 (a), when the occupant pulls the core wire 532 toward the actuator 540 by operating the mechanical or electronic actuator 540, the fixing member 410 is moved in the fixed state. The 420 is moved in the direction of the fixing member 410, and thus, as shown in FIG. 4 (b), the leaf spring 430 is compressed to push the support member 200 to rotate in the back direction of the occupant.

In this case, vibration or shock generated while driving the vehicle may be absorbed by the coil spring 510.

Thereafter, when the operation of the actuator 540 is stopped, the support member 200 continues to be rotated, and the leaf spring 430 is subjected to elastic restoring force. Therefore, when the actuator 540 is released to release the core wire 532 again, the movable member 420 moves to its original position by the elastic restoring force of the leaf spring 430, and the support member 200 rotates backward. It is in place.

Second embodiment

6 is a schematic view showing that only one coil spring 510 is disposed according to the second embodiment of the present invention. Hereinafter, the support member 200 and the actuator cable 530 and the actuator 540 will be described. The same configuration as the configuration is omitted for convenience of description.

Since the second embodiment of the present invention shown in FIG. 6 is substantially the same as the first embodiment, a description of overlapping portions will be omitted. However, in the case of the second embodiment, a pair of coil springs 510 are ' Unlike in the case of the first embodiment, which is arranged in a ∨ 'shape, there is a difference in that only one coil spring 510 is disposed.

At this time, the upper end of the coil spring 510 is coupled to the coupling hole 332 provided in the center of the hinge bracket 330.

Third embodiment

7 is a schematic view showing a state in which a core wire of an actuator cable is directly connected to a moving member according to a third embodiment of the present invention.

Since the third embodiment of the present invention shown in FIG. 7 is substantially the same as the first embodiment, description of overlapping portions will be omitted. However, in the case of the third embodiment, there is no traction wire 520, and the actuator cable There is a difference in that the core wire 532 of 530 is directly connected to the moving member 420, which will be described in detail with reference to FIGS. 1 and 7.

According to the third embodiment of the present invention, the locking groove 427 is formed in the center of the horizontal portion 422 of the moving member 420, the locking groove 427 is a through hole through which the core wire 532 is inserted through 427a, a guide hole 427b extending to one side of the through hole 427a, a fixing hole 427c extending in a direction perpendicular to the end of the guide hole 427b, and a tip of the core wire 532. It includes a depression 427d is formed in the rim of the fixing hole (427c) in the bottom surface of the movable member 420 so that the fastener (not shown) provided is caught.

Accordingly, the core wire 532 of the actuator cable 530 penetrates the through hole 427a, and a tip thereof is inserted, moves to the fixing hole 427c along the guide hole 427b, and then the bottom surface of the moving member 420. The fastener (not shown) is fixed to the depression 427d to be directly connected to the moving member 420, and the moving member 420 is fixed by the core 532 when the actuator 540 is operated. It will slide upward in the direction.

Fourth embodiment

8 is a schematic view showing a coil spring integrally formed on one side of a traction wire according to a fourth embodiment of the present invention, and the traction wires are coupled to the hinge bracket and the moving member to face each other.

Since the fourth embodiment of the present invention shown in FIG. 8 is substantially the same as the first embodiment, a description of overlapping portions will be omitted as described above, except in the case of the fourth embodiment, on one side of the traction wire 520 '. The coil spring 510 'is integrally formed and there is a difference in that a pair of towing wires 520' are disposed on both sides of the spring panel 400 so as to face each other. do.

That is, one end of the traction wire 520 'is coupled to the coupling hole 332 on both sides of the hinge bracket 330 in a' ∨ 'shape, the other end of the traction wire 520' both ends of the moving member 420 After each of the first fastening hole 425 is inserted through, the front end portion is inserted into the second fastening hole 426 in the opposite direction is coupled in a '∧' shape.

At this time, the middle portion of the towing wire 520 'coupled to the hinge bracket 330 is bent to form an annular hook portion 521', and the tip portion of the actuator cable 530 is formed on the hook portion 521 '. 531 is coupled, the core wire 532 of the actuator cable 530 is fixed to the engaging portion 521 of the towing wire 520 'coupled to the moving member 420.

In addition, the vehicle air conditioning air flow opening 230 for supplying cool or hot air to the seat back for the occupant during the operation of the air conditioner or heater of the vehicle, is divided by the towing wire 520 'and the hinge bracket 330 of the upper end May be placed in the space.

According to the lumber support assembly according to an embodiment of the present invention, it is possible to appropriately adjust the degree of protrusion of the lumber support according to the physical condition of the occupant, it is possible to modularize as a simple structure to reduce the production cost and time to improve the price competitiveness The lumber support assembly is provided, which absorbs vibrations and shocks applied to the lumber support while driving the vehicle, thereby providing a comfortable driving environment and providing a comfortable driving environment.

Claims (16)

In the lumber support assembly is installed in the seat back of the vehicle to support the spine and back of the occupant, A support member installed inside the seat back; A guide bar installed in the longitudinal direction at the rear of the support member and having an upper end pivotably coupled to an upper portion of the support member; An upper end hinged to a hinge bracket provided at one side of the guide bar, and a lower end coupled to the hinge bar so as to be slidably movable along the guide bar, the spring panel being curved toward the support member; And Lum support assembly comprising a; one end is coupled to one side of the hinge bracket and the other end is coupled to one side of the lower end of the spring panel to provide a compressive force to bend the spring panel. The method according to claim 1, Lumber support assembly, characterized in that the fitting portion is formed on each of the upper sides of the support member, the guide bar is a 'U' shape, both upper ends are bent to face each other and pivotally coupled to the fitting portion. The method according to claim 2, The fitting portion, A protrusion formed to protrude from the support member to support the upper end of the guide bar, and an elastic wing part formed to extend from an upper side of the protrusion to elastically support the upper end of the guide bar toward the protrusion. Lumber support assembly. The method according to claim 1, wherein the spring panel, A fixing member hinged to one side of the hinge bracket, a movable member slidably coupled along the guide bar to a lower side of the guide bar, and interposed between the fixing member and the movable member to provide elastic force to the movable member. Lumber support assembly comprising at least one leaf spring to provide. The method according to claim 4, The fixed member or the movable member, the lumber support assembly, characterized in that the insert injection molding integrally with the leaf spring. The method of claim 4, wherein the fixing member, And a hinge coupling portion coupled to the hinge bracket, and a leaf spring coupling portion extending from one side of the hinge coupling portion and coupled to an upper end of the leaf spring. The method according to claim 6, The hinge coupling part is hinged to the hinge bracket by a hinge pin, one side of the outer peripheral surface of the hinge pin is lumber support assembly, characterized in that the separation is prevented. The method according to claim 4, Lumber support assembly, characterized in that the incision portion of the predetermined length in the longitudinal direction is formed on one side of the leaf spring. The method of claim 4, wherein the driving means, At least one coil spring having an upper end fixed to one side of the hinge bracket, an actuator cable coupled to a lower end of the hinge spring, and caught by a locking groove provided at one side of the moving member, and the core wire And an actuator for pulling to slide the movable member toward the fixed member. The method of claim 9, wherein the drive means, Both ends are fixed to both sides of the movable member, the middle portion further includes a towing wire which is bent upward to form a locking portion, wherein the core wire of the actuator cable is coupled to the locking portion of the towing wire lumber support assembly. The method of claim 9, wherein the coil spring, The upper ends of the hinge brackets are spaced apart from each other, and the upper ends of the hinge brackets are fixed to each other, and the lower ends of the hinge brackets are coupled together to form a '∨' shape as a whole. A lumber support assembly, characterized in that the air flow opening for vehicle air conditioning is arranged. The method of claim 4, wherein the driving means, A pair of towing wires coupled to the hinge bracket and the movable member so as to face each other, and a tip portion is coupled to any one of the pair of towing wires, and a core wire is fixed to the other of the pair of towing wires. And an actuator cable configured to pull the core wire and slide the moving member toward the fixing member. The method of claim 12, wherein the towing wire, The middle portion is bent to form a locking portion, one side of the lumber support assembly, characterized in that the coil spring is formed integrally. The method of claim 9, wherein the locking groove, The through hole through which the core wire is inserted through, the guide hole extending to one side of the through hole, the fixing hole extending in the perpendicular direction of the guide hole, and the locking hole provided at the tip of the core wire is fixed to the hanging A lumber support assembly comprising a recess formed in the rim of the hole. The method according to claim 1, The support member is a lumber support assembly, characterized in that the pair of separation prevention jaw for preventing the left and right separation of the spring panel protrudes in the longitudinal direction spaced apart from each other. The method according to claim 4, Lumber support assembly is characterized in that the support member is formed to protrude so as to support both sides of the leaf spring in at least a pair of bundle ring corresponding to the leaf spring.

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