KR102415251B1 - Lumber support for vehicle seat with push type avtuating block - Google Patents

Abstract

A lumbar support installed on a vehicle seat and used to support a user's lumbar region is provided. According to the present invention, a support panel made of an elastic material for supporting the lumbar region of the user; a first guide rod supporting the support panel; a second link bracket fastened to the first guide rod to be movable up and down; a first link bracket disposed under the second link bracket, formed to be movable up and down with respect to the second link bracket, and having an operation block that provides support to the lumbar region; a first rotating screw extending up and down to be screwed to the first link bracket and rotating about the longitudinal direction to vertically move the first link bracket; and a second rotation screw extending vertically to be screwed to the second link bracket and rotated in the longitudinal direction to move the second link bracket up and down.

Description

Lumber support for vehicles with push-type actuation block {LUMBER SUPPORT FOR VEHICLE SEAT WITH PUSH TYPE AVTUATING BLOCK}

The present invention relates to a lumber support installed on a vehicle seat and used to support a user's lumbar spine.

The seat of the vehicle is configured to be able to appropriately adjust the position, angle, posture, etc. according to the user's physical condition. As one of them, the vehicle seat is provided with a lumbar support for supporting the lumbar region of the user. Lumber support provides adequate support for the lumbar region, which can provide effects such as improved seating comfort and reduction of fatigue caused by riding for a long time.

Lumber support is known and used in various ways. In addition, some lumbar supports are configured so that the position or the amount of protrusion can be adjusted according to the user's physical condition and posture. For example, Patent Registration No. 10-1372957 uses a lumbar plate that is elastically deformed back and forth, and Patent Registration No. 10-0636402 is implemented so that the amount of protrusion of the support plate can be adjusted through a kind of rack and pinion structure.

Despite the various known methods, the development of the lumbar support continues for better seating and operation. For example, the present applicant has applied for and registered a belt extension type lumber support using a rack-and-pinion structure through Patent Registration No. 10-1986536, and through Registration Patent No. 10-2102950, more precision using a traction wheel and a wire It has applied for and has been registered for Lumber Support, which can realize a smooth operation feeling.

Registered Patent No. 10-1372957 (Registered on March 10, 2014) Registered Patent No. 10-0636402 (Registered on October 12, 2006) Registered Patent No. 10-1986536 (Registered on May 31, 2019) Registered Patent No. 10-2102950 (Registered on April 14, 2020)

Embodiments of the present invention are installed on the seat of the vehicle to provide a lumbar support for a vehicle that can properly support the lumbar region of the user.

In addition, embodiments of the present invention are intended to provide a lumbar support for a vehicle that can further improve the operating feeling compared to the prior art and can perform more various motions.

In addition, embodiments of the present invention have a stable load support structure to provide a vehicle lumbar support that can minimize damage or deformation due to long-term use.

However, the technical problems to be achieved by the embodiments of the present invention are not necessarily limited to the technical problems mentioned above. Other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which embodiments of the present invention belong from other descriptions of the specification, such as detailed description.

According to an aspect of the present invention, a support panel made of an elastic material for supporting the lumbar region of the user; a first guide rod supporting the support panel; a second link bracket fastened to the first guide rod to be movable up and down; a first link bracket disposed below the second link bracket to be movable up and down with respect to the second link bracket, the first link bracket having an operation block for providing support to the lumbar region; a first rotating screw extending up and down to be screwed to the first link bracket and rotating about the longitudinal direction to vertically move the first link bracket; and a second rotating screw extending vertically to be screwed to the second link bracket, and rotating about the longitudinal direction to vertically move the second link bracket; a lumber support for a vehicle including a.

The lumbar support for a vehicle according to embodiments of the present invention may be installed on a seat of a vehicle to provide adequate support for a user's lumbar region.

In addition, the lumbar support for a vehicle according to the embodiments of the present invention can contribute to improving the sitting feeling and convenience of use by appropriately adjusting the protrusion amount or the vertical position of the support part according to the user's body type, posture, and the like.

In addition, in the lumber support for a vehicle according to embodiments of the present invention, the first link bracket is guided by the second guide rods on the left and right, and is configured to receive an operating force through the first rotating screw in the center, while the second link bracket is positioned on the left and right It is guided by a second guide rod of Accordingly, it is possible to maintain a stable support state and to adjust the protrusion amount or the vertical position, and to realize a smoother operating feeling by reducing vibration or rattle noise during operation.

In addition, in the vehicle lumbar support according to the embodiments of the present invention, the amount of protrusion or the vertical position adjustment can be made in a state where a pair of left and right operation blocks are supported while avoiding the central lumbar region. can be implemented.

The technical effects obtainable through the embodiments of the present invention are not necessarily limited to the above-mentioned effects. Other technical effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from other descriptions of the specification such as the detailed description.

1 is a schematic perspective view of a lumber support for a vehicle in accordance with an embodiment of the present invention as viewed from the front.
FIG. 2 is a schematic perspective view of the lumber support for the vehicle of FIG. 1 as viewed from the rear.
FIG. 3 is a schematic perspective view of the lumber support for a vehicle of FIG. 1 , with the support panel omitted.
4 is a schematic perspective view of the first link bracket shown in FIG. 1 .
5 is a schematic perspective view of the second link bracket shown in FIG. 1 .
FIG. 6 is a first operation view showing control of the protrusion amount of the operation block in the lumber support for a vehicle shown in FIG. 3 .
FIG. 7 is a second operation diagram illustrating vertical movement of the operation block in the lumber support for a vehicle illustrated in FIG. 3 .

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following examples may be provided to more completely explain the present invention to those of ordinary skill in the art. However, the following examples are provided to help the understanding of the present invention, and the technical spirit of the present invention is not necessarily limited to the following examples. In addition, detailed descriptions of known components or unclear the technical gist of the present invention will be omitted.

1 is a schematic perspective view of a lumber support for a vehicle viewed from the front according to an embodiment of the present invention. FIG. 2 is a schematic perspective view of the lumber support for a vehicle of FIG. 1 as viewed from the rear. FIG. 3 is a schematic perspective view illustrating a lumber support for a vehicle in FIG. 1 with a support panel omitted.

1 to 3 , the lumber support 100 for a vehicle of the present embodiment may include a support panel 110 .

The support panel 110 may provide a support structure for supporting the user's lumbar region or back region. The support panel 110 may be extended to have a predetermined support surface to correspond to the user's lumbar region or back region. In this embodiment, the support panel 110 is exemplified in the shape of a square plate having a predetermined vertical height and left and right width. The support panel 110 may be formed to extend vertically and horizontally so as to contact and support the user's lumbar spine or back in a sufficiently large area. This is so that variable motions to be described later can be performed while the lumbar region has a large contact area and is stably supported.

If necessary, a panel hole 111 may be formed in the support panel 110 . The panel hole 111 may be formed to penetrate the support panel 110 in the thickness direction. A plurality of panel holes 111 may be formed, and the plurality of panel holes 111 may be appropriately disposed vertically or horizontally spaced apart on the plane of the support panel 110 . Preferably, the panel hole 111 may have a position, size, shape, etc. capable of inducing an appropriate deformation of the support panel 110 in response to elastic deformation of the support panel 110 by an operation block 131 to be described later. have. However, the number, position, size, shape, etc. of the panel holes 111 may be appropriately varied as needed, and are not necessarily limited to the illustrated ones. Alternatively, in some cases, the panel hole 111 may be replaced with a shape, material, structure, etc. capable of inducing deformation of the support panel 110 .

Part or all of the support panel 110 may be made of a deformable elastic material. Preferably, the entire support panel 110 may be made of a single elastic material. The support panel 110 made of an elastic material may be elastically deformed by an operation block 131 to be described later. The support panel 110 entirely made of a single elastic material can contribute to realizing a softer feeling of use by alleviating the sense of heterogeneity caused by the movement of the operation block 131 .

The support panel 110 may be supported in contact with a rear portion thereof by an operation block 131 to be described later. Accordingly, the support panel 110 is elastically protrudingly deformed at a position supported by the operation block 131 to provide support for the user's lumbar region. In addition, as the operation block 131 moves, the support panel 110 changes its protruding and deformed position and may have a different support portion.

Meanwhile, the lumber support 100 for a vehicle of the present embodiment may include a first guide rod 120 .

The first guide rod 120 may be disposed at the rear of the support panel 110 to provide a support structure for the support panel 110 or the user's load. The first guide rod 120 may be formed in the form of a rod or a frame extending in a predetermined shape. In the case of the present embodiment, the first guide rod 120 is illustrated such that a pair of rods extending a predetermined length up and down are arranged spaced apart from side to side, and the lower ends of the pair of rods are connected again from side to side to form an approximately “U” shape, have. However, the structure, shape, etc. of the first guide rod 120 is not necessarily limited to the illustrated bar, and as long as it can properly perform the function of the first guide rod 120 to be described later, various structures, shapes, etc. can be transformed into Also, in some cases, the first guide rod 120 may be replaced in the form of a frame, a bracket, or the like.

An upper frame 121 and a lower frame 122 may be provided on the upper and lower portions of the first guide rod 120 , respectively. The upper frame 121 has a predetermined height and is formed to extend left and right to be fastened to an upper portion of the first guide rod 120 . The lower frame 122 may be spaced apart from the lower side of the upper frame 121 by a predetermined interval to be fastened to the lower portion of the first guide rod 120 . The upper and lower frames 121 and 122 may provide a support structure in which components such as a rotating screw and a driving motor to be described later may be properly mounted and supported. The structure, shape, etc. of the upper and lower frames 121 and 122 are not necessarily limited to the illustrated ones, and in some cases, the upper and lower frames 121 and 122 are partially or entirely integrated with the first guide rod 120 . may be provided in the form.

Meanwhile, the lumber support 100 for a vehicle of the present embodiment may include a first link bracket 130 .

The first link bracket 130 may be disposed on a lower portion of the first guide rod 120 adjacent to the lower frame 122 . The first link bracket 130 can be supported on the first guide rod 120 via a second link bracket 140 to be described later, and can be moved up and down according to the operation of the first rotating screw 162 to be described later. have. The first link bracket 130 may be moved up and down with respect to the second link bracket 140 to adjust the amount of protrusion of the lumbar support portion.

4 is a schematic perspective view of the first link bracket shown in FIG.

4, the first link bracket 130 may be formed to extend a predetermined length left and right. A second guide rod 150 to be described later may be fastened to the left and right sides of the first link bracket 130 , respectively. The second guide rod 150 may be fastened to penetrate the first link bracket 130 up and down to guide the vertical movement of the first link bracket 130 .

The first link bracket 130 may include an operation block 131 . The lower end of the operation block 131 is hinged to the first link bracket 130 so that it can be rotated about the left and right axes. In addition, the operation block 131 may be formed to extend upward by a predetermined degree from the hinge axis as a starting point. At the upper end of the operation block 131 , the front portion may contact and support the rear surface of the support panel 110 , and the rear portion may be contact-supported by a push protrusion 145 to be described later. The rear portion may be formed as an inclined surface inclined downward toward the rear so that the operation block 131 can protrude forward by the push protrusion 145 .

The operation block 131 may be provided in a pair spaced apart from the left and right. Preferably, the pair of operation blocks 131 may be arranged to be spaced apart from each other by a predetermined distance left and right centering on the left and right centers of the first link bracket 130 . Such an arrangement places the user's spine in the center and a pair of operation blocks 131 are spaced apart from each other to support each part, thereby reducing a sense of heterogeneity and realizing a more comfortable feeling of use.

Referring back to FIGS. 1 to 3 , the lumbar support 100 for a vehicle of the present embodiment may include a second link bracket 140 .

The second link bracket 140 may be disposed on the upper side of the first link bracket 130 to support the first link bracket 130 via the second guide rod 150 . In addition, the left and right ends of the second link bracket 140 may be respectively fastened to the first guide rod 120 so that vertical movement may be guided by the first guide rod 120 . The second link bracket 140 is moved up and down together with the first link bracket 130 to appropriately adjust the vertical position of the lumbar support portion.

5 is a schematic perspective view of the second link bracket shown in FIG.

Referring to FIG. 5 , the second link bracket 140 may include an upper link bracket 141 , a connection bracket 142 , and a lower link bracket 143 . The upper and lower link brackets 141 and 143 may be vertically spaced apart from each other by a predetermined interval, and the connection bracket 142 extends vertically between the upper and lower link brackets 141 and 143 to form the upper and lower link brackets 141 , 143) can be connected. The connection bracket 142 may be formed to extend vertically with a predetermined left and right width in the left and right central portions of the upper and lower link brackets 141 and 143 . However, the detailed shape of the second link bracket 140 may be appropriately deformed into various shapes other than those illustrated if it meets the functional requirements to be described later, and is not necessarily limited to the illustrated ones.

The upper link bracket 141 may have left and right ends respectively fastened to the first guide rod 120 . The first guide rod 120 is fastened to penetrate the upper link bracket 141 up and down, thereby guiding the vertical movement of the upper link bracket 141 . Also, similarly, the lower link bracket 143 may be coupled to the first guide rod 120 at left and right ends at a position spaced apart from the lower side of the upper link bracket 141 by a predetermined interval. Accordingly, the second link bracket 140 can be moved up and down in a state in which the left and right ends are supported by the first guide rod 120 at each location up and down. Such a structure allows a support part such as the lumbar spine to move while securing a stable support force in a larger area, thereby realizing a smooth and stable feeling of operation.

A screw fastening bracket 144 may be vertically extended on the rear surface of the second link bracket 140 (refer to FIG. 2 ). The screw fastening bracket 144 may be formed to extend vertically along the connection bracket 142 in the left and right central portions of the second link bracket 140 . In addition, a second rotating screw 172, which will be described later, passes vertically through the center of the screw fastening bracket 144 and may be screwed. Accordingly, the screw fastening bracket 144 to the second link bracket 140 may be properly moved up and down by the operation of the second rotating screw 172 .

In the above, the screw fastening bracket 144 is extended vertically to receive an operating force while securing a sufficient supporting area with the second rotating screw 172 . This is in consideration of the fact that the second link bracket 140 supports the user's lumbar region or back in a relatively large area and receives a relatively large load. That is, the vehicle lumber support 100 of this embodiment can implement a smoother and more stable operating feeling by moving the push protrusion 145 in a state in which the user's load is sufficiently stably supported by the screw fastening bracket 144 as described above. .

Meanwhile, a push protrusion 145 may be provided on the front surface of the lower link bracket 143 . A pair of push protrusions 145 may be provided on the left and right to correspond to the pair of operation blocks 131 . The push protrusion 145 may contact and support the rear surface of the operation block 131 , and may be formed to be inclined downwardly toward the front to correspond to the inclination of the rear surface of the operation block 131 . Such a push protrusion 145 may be slid in contact with the rear surface of the operation block 131 to adjust the amount of protrusion of the operation block 131 . This is amplified in relation to the operation of the present embodiment.

Referring back to FIGS. 1 to 3 , the lumber support 100 for a vehicle according to the present embodiment may include a second guide rod 150 .

The second guide rod 150 may be formed in the form of a rod extending vertically. The upper end of the second guide rod 150 may be fastened to the upper link bracket 141 , and may be spaced apart from the lower side by a predetermined interval to be fastened to the lower link bracket 143 again. The second guide rod 150 may be fixedly supported by being fastened to the upper and lower link brackets 141 and 143 .

In addition, the first link bracket 130 may be fastened to the lower end of the second guide rod 150 . The second guide rod 150 may be fastened to penetrate the first link bracket 130 up and down, and the first link bracket 130 may be guided by the second guide rod 150 to move up and down. . That is, the second guide rod 150 may guide the vertical movement of the first link bracket 130 .

A pair of second guide rods 150 may be provided and spaced apart from one another to the left and right. Accordingly, the first link bracket 130 is supported and guided by the second guide rod 150 at both left and right sides, and can be moved up and down. Therefore, the first link bracket 130 to the operation block 131 can be moved more stably and smoothly in a state in which the user's load is applied.

Meanwhile, the lumber support 100 for a vehicle of the present embodiment may include a first driving motor 161 and a first rotating screw 162 .

The first driving motor 161 may be disposed below the first link bracket 130 to be mounted and supported on the second link bracket 140 . The first driving motor 161 may move up and down together with the vertical movement of the second link bracket 140 . The first driving motor 161 may be link-coupled to the first rotating screw 162 to rotate the first rotating screw 162 . The first rotating screw 162 may be rotated in a forward direction or a reverse direction with respect to the longitudinal direction by the first driving motor 161 .

If necessary, the first driving motor 161 may be provided with an appropriate deceleration means on the rotation shaft to transmit the driving force to the first rotation screw 162 through the deceleration means. As an example, the first driving motor 161 may have a rotation shaft in a left and right direction, and a worm may be provided at an end of the rotation shaft to be meshed with the first rotation screw 162 to transmit a driving force. Such an arrangement makes it easier to arrange the first driving motor 161 and to implement a sufficient reduction ratio through the worm.

However, if the first driving motor 161 is of a form capable of transmitting an appropriate rotational driving force to the first rotating screw 162, it may be formed to have various positions and power transmission structures other than those exemplified above, It is not limited to an arrangement or a power transmission structure.

On the other hand, the first rotation screw 162 may be fastened to penetrate the first link bracket 130 up and down at approximately the left and right central portions of the first link bracket 130 . Here, the first rotating screw 162 may be screw-coupled to the first link bracket 130 . Accordingly, when the first rotation screw 162 rotates in the forward or reverse direction, the first link bracket 130 may move up and down and adjust its position. Meanwhile, the first link bracket 130 receives a driving force from the first rotating screw 162 in the left and right central regions, and is guided up and down by the second guide rod 150 on the left and right sides to maintain a stable support structure. It can be moved up and down.

The first rotating screw 162 may be formed to extend a predetermined length vertically, and the lower end thereof may be connected to the first driving motor 161 to receive rotational driving force. As described above, between the lower end of the first rotating screw 162 and the first driving motor 161, an appropriate deceleration means may be provided as needed. The first rotating screw 162 extends upward from the lower end and can be screw-coupled through the first link bracket 130 , and again from the upper side of the first link bracket 130 to the second link bracket 140 . can be contracted with The first rotating screw 162 may be rotatably supported by the second link bracket 140 so as to be properly rotationally driven by the first driving motor 161 .

If necessary, the first rotating screw 162 is fastened to penetrate the upper and lower link brackets 141 and 143 spaced up and down, and may be mounted and supported through a predetermined rotation support means such as a bearing. In this case, the first rotating screw 162 is supported by the lower first link bracket 130 , the upper link bracket 141 , and the lower link bracket 143 at the middle of the first link in a more stable supported state. Up and down movement of the bracket 130 may be made.

Meanwhile, the lumber support 100 for a vehicle of the present embodiment may include a second driving motor 171 and a second rotating screw 172 .

The second driving motor 171 may be disposed on the lower frame 122 . Alternatively, the second driving motor 171 may be disposed at a predetermined position separated from the first and second link brackets 130 and 140 . As an example, the second driving motor 171 may be disposed on the upper frame 121 unlike the drawing, or may be disposed on one side in the longitudinal direction of the second rotating screw 172 through a predetermined support structure. Similar to the above-described first driving motor 161, the second driving motor 171 is capable of properly transmitting rotational driving force to the second rotating screw at a predetermined position separated from the first and second link brackets 130 and 140. it is free if In addition, if necessary, an appropriate deceleration means may be provided on the rotation shaft of the second driving motor 171 .

The second rotating screw 172 may be fastened to penetrate the second link bracket 140 up and down at approximately the left and right central portions of the second link bracket 140 . As described above, if necessary, a screw fastening bracket 144 may be provided on the rear surface of the second link bracket 140 , and the second rotating screw 172 may be fastened to penetrate the screw fastening bracket 144 up and down. can In addition, the second rotating screw 172 may be screwed through the screw fastening bracket 144 up and down.

The second rotating screw 172 may be formed to extend a predetermined length vertically, and the lower end thereof may be connected to the second driving motor 171 to receive rotational driving force. For reference, as shown, the first rotating screw 162 has a relatively short length and is disposed in front of the second rotating screw 172 , and the second rotating screw 172 is greater than the first rotating screw 162 . It has a long length and is disposed behind the first rotating screw 162 . In addition, the upper end of the second rotating screw 172 may be rotatably fastened to the center of the upper frame 121 , and the lower end may be rotatably fastened to the center of the lower frame 122 . Accordingly, the second rotating screw 172 may be rotationally driven while being properly supported at each of the upper and lower support points and the middle portion fastened to the screw fastening bracket 144 .

FIG. 6 is a first operation view showing adjustment of the amount of protrusion of the operation block in the lumber support for a vehicle shown in FIG. 3 .

Referring to FIG. 6 , the lumber support 100 for a vehicle according to the present embodiment may adjust the amount of protrusion of the operation block 131 through the operation of the first driving motor 161 . The operation block 131 may protrude more forward to strengthen the support force for the lumbar region, or may retreat back to weaken the support force.

Specifically, when the first driving motor 161 is driven in the forward direction, the first rotating screw 162 may be rotated in the forward direction with respect to the longitudinal axis. When the first rotating screw 162 is rotated in the forward direction, the first link bracket 130 screwed thereto may be moved upward. Here, the second link bracket 140 is in a state in which the vertical position is maintained, and only the first link bracket 130 can be moved upward.

When the first link bracket 130 is moved upward, the rear side of the operation block 131 is pushed by the push protrusion 145 and can be rotated forward by a predetermined degree about the hinge axis. That is, the operation block 131 may protrude forward to strengthen the supporting force for the lumbar region. The contact surface between the operation block 131 and the push protrusion 145 is formed as an inclined surface as described above, and as the first link bracket 130 moves upward, the operation block 131 may protrude more forward. have. Accordingly, the user can adjust the upper and lower positions of the first link bracket 130 to appropriately change the protrusion amount or support force.

A pair of operation blocks 131 are provided on the left and right to avoid the central lumbar region and support the user's waist from left to right, and move up and down in this arrangement and support state to realize a more comfortable feeling of use.

Meanwhile, when the first driving motor 161 is driven in the reverse direction, the first rotating screw 162 may be rotated in the reverse direction, and the first link bracket 130 may be moved downward in association therewith. In addition, the push protrusion 145 may be rotated backward to a predetermined degree, and as the amount of protrusion toward the front decreases, the supporting force for the lumbar region may be weakened. The user can properly adjust the support force for the lumbar region by driving the first driving motor 161 in the forward or reverse direction in this way.

FIG. 7 is a second operation diagram illustrating vertical movement of the operation block in the lumber support for a vehicle illustrated in FIG. 3 .

Referring to FIG. 7 , the lumber support 100 for a vehicle according to the present embodiment can adjust the support position up and down through the operation of the second driving motor 171 . The operation block 131 may be moved up and down by the second driving motor 171 to adjust its position while maintaining a predetermined amount of protrusion. Accordingly, it is possible to adjust the support position according to the user's body type and the like.

Specifically, when the second driving motor 171 is rotated in the forward direction, the second rotating screw 172 may rotate in the forward direction about the longitudinal direction. When the second rotating screw 172 is rotated in the forward direction, the screw fastening bracket 144 to the second link bracket 140 screwed thereto may be moved upward. Here, the first link bracket 130 may be moved upward along with the second link bracket 140 according to the first rotating screw 162 , and accordingly, the protrusion amount of the operation block 131 may be maintained as it is. .

As the first link bracket 130 to the operation block 131 are moved upward, the support position may be moved upward as a whole. Similar to the above-mentioned adjustment of the amount of protrusion, a pair of operation blocks 131 are provided on the left and right to support the waist from the left and right, so that a more comfortable feeling of use can be realized when moving up and down.

On the other hand, when the second driving motor 171 is driven in the reverse direction, the second rotating screw 172 may be rotated in the reverse direction, and in conjunction with this, the second link bracket 140 to the operation block 131 may be moved downward as a whole. have. Accordingly, the support position may be moved downward to be adjusted to an appropriate support position according to the user.

As described above, the lumbar support 100 for a vehicle according to embodiments of the present invention may be installed on a seat of a vehicle to provide adequate support for a user's lumbar region.

In addition, the lumbar support 100 for a vehicle according to embodiments of the present invention can appropriately adjust the protrusion amount or vertical position of the support portion according to the user's body type, posture, etc., thereby contributing to improving seating comfort and ease of use.

In addition, in the lumber support 100 for a vehicle according to embodiments of the present invention, the first link bracket 130 is guided by the second guide rod 150 on the left and right, and the operating force through the first rotation screw 162 in the center On the other hand, the second link bracket 140 is guided by the left and right second guide rods 150, and is configured to receive an operating force through the second rotating screw 172 in the center. Accordingly, it is possible to maintain a stable support state and to adjust the protrusion amount or vertical position, and to realize a smoother operating feeling by reducing vibration or rattle noise during operation.

In addition, in the lumber support 100 for a vehicle according to the embodiments of the present invention, the amount of protrusion or the vertical position adjustment can be made in a state in which a pair of left and right operation blocks 131 are supported while avoiding the central lumbar region. It can reduce the sense of heterogeneity and realize a more comfortable feeling of use.

Although the embodiments of the present invention have been described above, those of ordinary skill in the art can add, change, delete or add components within the scope that does not depart from the technical spirit of the present invention described in the claims. It will be possible to variously modify or change the present invention by this, which will also be included in the scope of the present invention.

100: vehicle lumbar support 110: support panel
120: first guide rod 130: first link bracket
140: second link bracket 150: second guide rod
161: first driving motor 162: first rotating screw
171: second driving motor 172: second rotating screw

Claims (7)

Support panel 110 made of an elastic material for supporting the user's lumbar region;
a first guide rod 120 for supporting the support panel 110;
a second link bracket (140) fastened to the first guide rod (120) to be movable up and down;
A first link bracket ( 130);
a first rotating screw 162 extending up and down and screwed to the first link bracket 130 and rotating about the longitudinal direction to move the first link bracket 130 up and down; and
A second rotation screw 172 that extends up and down and is screwed to the second link bracket 140 and rotates about the longitudinal direction to move the second link bracket 140 up and down; includes;
The second link bracket 140,
an upper link bracket 141 whose left and right sides are respectively fastened to the first guide rod 120 to be movable up and down;
a lower link bracket 143 spaced apart from the lower side of the upper link bracket 141 by a predetermined interval, and the left and right sides are respectively fastened to the first guide rod 120 to be movable up and down; and
Lumber support for a vehicle including; a connection bracket (142) extending between the upper link bracket (141) and the lower link bracket (143). delete The method according to claim 1,
The second link bracket 140,
A screw fastening bracket that is formed to extend up and down to correspond to the longitudinal direction of the second rotation screw 172 in the left and right central portions of the second link bracket 140, and to which the second rotation screw 172 is screwed into the interior. (144) Lumber support for vehicles including. The method according to claim 1,
The operation block 131 is,
The lower end is hinged to the first link bracket 130 so as to be rotatable about the left and right axes, and the push protrusion 145 provided on the second link bracket 140 according to the vertical movement of the first link bracket 130 . ) and is formed to adjust the amount of protrusion forward, and a pair of lumbar supports for vehicles are provided and are spaced apart from one another to the left and right. 5. The method according to claim 4,
The operation block 131 is,
A lumbar support for a vehicle that forms a contact surface inclined downward toward the rear and is formed to come into contact with the push protrusion (145). The method according to claim 1,
A pair of left and right side of the second link bracket 140 is provided, and the second guide rod 150 is slidably fastened to the left and right of the operation block 131 to guide the vertical movement of the operation block 131 . ) further comprising,
The first rotating screw 162 is,
A lumbar support for a vehicle formed to be screwed to the left and right central portions of the first link bracket (130) between the pair of second guide rods (150). The method according to claim 1,
an upper frame 121 fastened to an upper portion of the first guide rod 120 and rotatably supporting an upper end of the second rotating screw 172;
a lower frame 122 spaced apart from the lower side of the upper frame 121 and fastened to the lower portion of the first guide rod 120 and rotatably supporting the lower end of the second rotating screw 172;
a first driving motor 161 having a rotational shaft in a left and right direction, supported under the second link bracket 140, and providing a rotational driving force to the first rotational screw 162 through a deceleration means; and
Lumber support for a vehicle comprising a; a second drive motor (171) having a rotation shaft in the left and right direction, supported by the lower frame (122), and providing rotational driving force to the second rotation screw (172) through a deceleration means.

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