Long slide rail system for vehicle seat

Abstract

The invention provides a long slide rail system for a vehicle seat, and the long slide rail system for the vehicle seat comprises a lower guide rail which is fixedly disposed on a bottom plate of a vehicle and has a length; the upper guide rail is combined with the lower guide rail, so that a seat cushion slides along the lower guide rail; a locking module which is installed on the upper guide rail and enables the upper guide rail to slide when the locking module is released from a locking hole formed in the lower guide rail; a fixed guide coupled to the upper guide rail and spaced apart from each other in the front-rear direction of the lock module; and a moving guide that selectively moves to be connected to the fixed guide as the lock module is locked in the lock hole, and that controls gaps in the left-right and up-down directions with respect to the upper guide rail inside the lower guide rail.

Description

TECHNICAL FIELD

[0001] The present application relates to a long slide rail system for a vehicle seat, and more particularly, to a long slide rail system for a vehicle seat that prevents seat wandering by restraining the up-and-down and left-and-right gaps between a lower rail and an upper rail. BACKGROUND

[0002] Generally, a seat of a vehicle includes a seat back and a seat cushion, and is provided with a seat slide device so that the seat cushion can be slid in the front-and-rear direction of a vehicle body.

[0003] Such a slide device is configured to provide a relatively short front-and-rear moving distance by providing a short slide device as in the case of a front seat, but in an RV vehicle, a van, etc. having a floor that is larger than a sedan, the adjustment range of the front-and-rear moving distance of the seat can be increased by providing a long slide rail system, and thus the legroom of a passenger can be increased, thereby providing a comfortable indoor living space.

[0004] Generally, in the case of a long slide rail system, it is configured to have a relatively long moving distance (about 400mm~1000mm) than the front-and-rear direction moving distance (about 200mm~300mm) of a short slide device, and includes a lower rail that is buried and installed to a floor of a vehicle, and an upper rail that is fastened to the lower rail in a front-and-rear direction and assembled with a seat.

[0005] In such a long slide rail system, as the length of the lower rail becomes long, the sizes of each section can not be uniform, and thus dispersion is inevitably present, which can cause the following problems.

[0006] First, since the upper rail is assembled to the lower rail in which the sizes of each section are dispersed, gap support can be achieved in some sections, but in other sections, gap support can not be properly achieved due to the dispersion, which can cause vibration and chattering, etc. of the upper rail when sliding.

[0007] Second, since the sizes of each section of the lower rail are not uniform, the degree of clamping between the components such as a roller for controlling the gap of the upper rail, an injection molded part, etc. and the lower rail can be different, and thus a difference in operating force can occur when the upper rail slides, and these problems are also related to the operating feeling that a customer feels and the product quality, and thus can adversely affect the product quality and the sense of luxury of the seat.

[0008] [Related Art Document]

[0009] [Patent Document]

[0010] (Patent Document 0001) Patent Document 1: Korean Patent Laid-Open Publication No. 10-2019-0069705 (2019.06.20). SUMMARY

[0011] Technical problem to be solved

[0012] The present application aims to provide a long slide rail system for a vehicle seat in which, as a locking module is caught in a lower rail, a rotation bracket is rotated by an elastic force, so a movement guide connected to the rotation bracket slides to a fixed bracket to be installed, and a gap in an up-down and left-right direction of the lower rail is controlled according to an inclined shape of the fixed bracket, so that a movement in the up-down and left-right direction can be prevented in a fixed state of the seat.

[0013] Technical solution

[0014] The long slide rail system for a vehicle seat according to the present application is characterized by comprising: a lower rail fixedly provided on a floor of a vehicle and having a length; an upper rail combined with the lower rail so that a seat cushion slides along the lower rail; a locking module installed on the upper rail and allowing the upper rail to be slidable when caught in a locking hole formed in the lower rail; a pair of fixed guides provided apart from each other in a front-rear direction of the locking module on the upper rail and combined with the upper rail; and a movement guide selectively moved to be connected to the fixed guides and controlling a gap in a left-right and up-down direction of the upper rail inside the lower rail as the locking module is caught in the locking hole.

[0015] The fixed guide includes: a main body fixedly combined to the upper rail; a pair of first support parts formed upright opposite to each other on the main body; and a second support part extended from the first support parts in a manner of forming a step.

[0016] The first support parts are gradually increased in distance in a direction in which the movement guide moves.

[0017] In addition, the second support parts are integrally formed with and extended from the first support parts and provided side by side to each other, and an upper surface of the second support parts is inclined upward in the direction in which the movement guide moves.

[0018] In addition, the movement guide includes: a pair of rotation brackets rotatably combined to the locking module in opposite directions to the fixed guide, respectively; and a guide bracket rotatably combined to the rotation brackets and selectively moved to be connected to the first support parts and the second support parts as the rotation brackets are rotated.

[0019] In addition, the rotation support is connected to each other by an elastic member, and as the locking module is rotated to be released from the locking hole, the rotation support is rotated together, thereby instantaneously elastically moving the guide support in a direction of being released from the first and second support members.

[0020] In addition, the rotation support includes a protruding member which is protruded to the locking module.

[0021] In addition, the guide support includes a body part connected to the main body and capable of moving in a front and back direction, a first mounting part extended in a left and right direction of the body part and selectively connected to the first support member, and a second mounting part extended to an upper side of the first mounting part and selectively connected to the second support member.

[0022] In addition, the first mounting part includes a rubber member combined to an outer side surface of the first mounting part to contact a side surface of the lower rail.

[0023] In addition, the second mounting part includes a connection member formed in a "U" shape to accommodate the second support member therein, and a roller member combined to an outer side surface of the connection member to contact an upper surface of the lower rail.

[0024] In addition, the body part includes an elastic member provided in front of a portion where the body part is connected to the main body, thereby selectively providing an elastic restoring force in a compressed state as the fixed guide is moved.

[0025] (Three) Advantageous Effects

[0026] In the present application, as the locking module is caught in the lower rail, the rotation support is rotated by an elastic force, and thus the movement guide connected to the rotation support is slid to the fixed support to be installed, and the gap in the up and down and left and right directions of the lower rail is controlled according to the inclined shape of the fixed support, thereby having an effect of preventing the up and down and left and right directions from being moved in a fixed state of the seat.

[0027] Therefore, in the present application, since the upper rail can be prevented from being vibrated and shaken, etc. in advance, an effect of improving the product quality of the seat can be obtained.

[0028] In addition, in the present application, as the locking module is released from the lower rail, the rotation support is rotated by the locking module, and thus the movement guide is released from the fixed support, so that the upper rail can be slid, thereby having an effect of preventing the generation of a difference in operating force caused by the sliding of the upper rail in advance. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 and Figure 2 is a view showing a long slide rail system for a vehicle seat according to an embodiment of the present application.

[0030] Figure 3 is a view showing clearance control of the left and right and up and down directions of a moving guide in a long slide rail system for a vehicle seat according to an embodiment of the present application.

[0031] Figure 4 is a view showing a separated state of a moving guide in a long slide rail system for a vehicle seat according to an embodiment of the present application.

[0032] Figure 5 is a view showing a combined state of a moving guide and a fixed guide in a long slide rail system for a vehicle seat according to an embodiment of the present application.

[0033] Figure 6 and Figure 7 is a view showing an operating state of a rotating guide in a long slide rail system for a vehicle seat according to an embodiment of the present application.

[0034] Figure 8a and Figure 8b is a view showing a first support member and a second support member in a long slide rail system for a vehicle seat according to an embodiment of the present application.

[0035] Figures 9 to 12 is a view showing an operating state of a moving guide in a long slide rail system for a vehicle seat according to an embodiment of the present application.

[0036] BRIEF DESCRIPTION OF DRAWINGS

[0037] 100: lower rail 200: upper rail

[0038] 202: roller 300: locking module

[0039] 302: locking fork 400: fixed guide

[0040] 410: main body 412: connecting member

[0041] 412a: fixing member 420: first support member

[0042] 430: second support member 440, 512: elastic member

[0043] 500: moving guide 510: rotating bracket

[0044] 514: protruding member 520: guide bracket

[0045] 522: main body portion 524: first mounting portion

[0046] 525: rubber member 526: second mounting portion

[0047] 526a: connecting member 526b: roller member

[0048] H: lock hole DETAILED DESCRIPTION

[0049] Hereinafter, preferred embodiments according to the present application will be described in detail with reference to the accompanying drawings.

[0050] Advantages and features of the present application and a method of achieving them will become apparent by referring to the accompanying drawings and the following detailed description.

[0051] However, the present application is not limited to the embodiments disclosed below, but can take various forms, and the embodiments are provided only to make the disclosure of the present application complete and to completely explain the scope of the invention to those skilled in the art to which the present application pertains, and the present application is defined by the scope of claims.

[0052] In addition, in explaining the present application, if it is judged that the relevant known art or the like can obscure the gist of the present application, detailed description thereof will be omitted.

[0053] Figure 1 and Figure 2 is a view showing a long slide rail system for a vehicle seat according to an embodiment of the present application, Figure 3 is a view showing gap control of the left and right and up and down directions of a moving guide in a long slide rail system for a vehicle seat according to an embodiment of the present application.

[0054] In addition, Figure 4 is a view showing a separated state of a moving guide in a long slide rail system for a vehicle seat according to an embodiment of the present application, Figure 5 is a view showing a combined state of a moving guide and a fixed guide in a long slide rail system for a vehicle seat according to an embodiment of the present application, Figure 6 and Figure 7 is a view showing an operating state of a rotating guide in a long slide rail system for a vehicle seat according to an embodiment of the present application.

[0055] Further, Figure 8a and Figure 8b is a view showing a first support member and a second support member in a long slide rail system for a vehicle seat according to an embodiment of the present application, Figures 9 to 12 is a view showing an operating state of a moving guide in a long slide rail system for a vehicle seat according to an embodiment of the present application.

[0056] As Figure 1 and Figure 2As shown, the long slide rail system for a vehicle seat according to the present embodiment includes a lower rail 100, an upper rail 200, a locking module 300, a fixed guide 400, and a moving guide 500.

[0057] The lower rail 100 is fixedly disposed on a floor of a vehicle, and has a length.

[0058] The upper rail 200 is disposed in combination with the lower rail 100, and in combination with a seat cushion constituting a vehicle seat, to slide along the lower rail 100.

[0059] To this end, the upper rail 200 can be provided with a plurality of rollers 202, and the upper rail 200 can slide along the front and rear directions of the lower rail 100 by the rollers 202.

[0060] In addition, the locking module 300 is provided with a locking fork 302 rotatably installed on the upper rail 200 in an up and down direction, and as the locking fork 302 rotates to be released from the locking hole H formed in the lower rail 100, the upper rail 200 can be slidable.

[0061] In more detail, in the locking module 300, in a locking mode of the vehicle seat, the locking fork 302 is caught in the locking hole H to restrict the sliding of the upper rail 200, and in a moving mode, the locking fork 302 is released from the locking hole H by rotating on the shaft on the upper rail 200, so that the upper rail 200 can be slidable.

[0062] The fixed guide 400 is provided in a pair, respectively disposed apart in the front and rear directions of the locking module 300 on the upper rail 200, and accommodates the lower portion of the upper rail 200 inside, and is fixedly combined by welding or the like.

[0063] As shown in Figure 8a and Figure 8b , such a fixed guide 400 includes a main body 410, a first support member 420, and a second support member 430.

[0064] The main body 410 is formed in a straight up shape for a connection member 412 connecting the moving guide 500, and is fixedly combined on the upper rail 200.

[0065] Among them, as shown in Figure 5 , the connection member 412 can be protrudingly formed with a fixing member 412a for fixing an elastic member 440, and since such a fixing member 412a can fix the position of the elastic member 440 accommodated inside the main body 510 of the moving guide 500, it can selectively provide an elastic force to the moving guide 500 moving based on the moving mode or the locking mode.

[0066] A pair of first support members 420 are formed opposite each other and upright on the side of the main body 410.

[0067] Preferably, the first support member 420 can be inclinedly arranged on the side of the main body 410 in a direction that opens to each other; more preferably, the spacing between the first support members 420 can gradually increase along the direction of movement of the moving guide 500 (see reference). Figure 8a ).

[0068] In addition, the second support member 430 is formed to form a step with each of the first support members 420 and stand upright, and are arranged side by side with each other.

[0069] Furthermore, the second support member 430 can be integrally formed with the first support member 420 and extend upward. Preferably, it can be formed such that its upper surface gradually slopes upward along the direction of movement of the movable guide 500 (see reference). Figure 8b ).

[0070] On the other hand, as the locking fork 302 engages in the locking hole H, the moving guide 500 selectively moves to connect with the first support member 420 and the second support member 430, through the connection described above, such as... Figure 3 As shown, the moving guide 500 controls the clearance of the upper guide rail 200 in the left-right and up-down directions within the lower guide rail 100.

[0071] Therefore, such as Figure 4 As shown, the movable guide 500 may include a rotating bracket 510 and a guide bracket 520.

[0072] A pair of rotating brackets 510 are rotatably coupled to the locking module 300 in a direction opposite to the fixed guide 400.

[0073] The upper parts of each of the rotating brackets 510 can be connected to each other via elastic members 512 (see reference). Figure 1 and Figure 2 Therefore, in the moving mode, as the locking fork 302 rotates to release itself from the locking hole H, the rotating bracket 510 rotates, thereby allowing the guide bracket 520 to move instantaneously and elastically in the direction of disengaging from the first support member 420 and the second support member 430.

[0074] In other words, such as Figure 6 As shown, due to the elastic restoring force acting on the rotating bracket 510 through the elastic member 512, in the locked mode, the rotating bracket 510 rotates so that its upper parts face each other, thereby allowing the guide bracket 520 to connect with the fixed guide 400. In the movable mode, as... Figure 7As shown, the rotation bracket 510 rotates such that the respective upper portions are distanced from each other due to the locking module 300, so that the guide bracket 520 can be released from the fixed guide 400.

[0075] As shown, the rotation bracket 510 is provided with a protruding member 514 protruding from the locking module 300, respectively, and when the locking fork 302 rotates to switch from the locking mode to the moving mode, the rotating locking fork 302 presses the protruding member 514, so that the rotation bracket 510 for moving the guide bracket 520 can be rotated and moved.

[0076] In addition, as shown in Figure 4 and Figure 5 , one side of the guide bracket 520 is rotatably coupled to the rotation bracket 510, and the other side is connected to the connecting member 412, and for the locking mode, the guide bracket 520 is selectively moved as the rotation bracket 510 rotates in the locking module 300, and is connected to the first support member 420 and the second support member 430.

[0077] The guide bracket 520 includes a main body portion 522, a first mounting portion 524, and a second mounting portion 526.

[0078] The main body portion 522 is connected to the connecting member 412 of the main body 410 in a front and rear direction.

[0079] The main body portion 522 accommodates the elastic member 440 mounted on the fixed member 412a in the front, so as to be connected to the connecting member 412 (see Figure 5 ).

[0080] The first mounting portion 524 is formed to extend in the left and right directions of the main body portion 522, and is selectively connected to the first support member 420.

[0081] Preferably, the first mounting portion 524 can be formed of a material having elasticity, so as to be able to bend a predetermined range in correspondence with the shape of the first support member 420 when connected to the first support member 420 (see Figure 8a ).

[0082] The first mounting portion 524 can be provided with a rubber member 525 coupled to the outer side surface to be coupled to the side surface of the lower rail 100 (see Figure 3 ), and in the locking mode, when the first mounting portion 524 is connected to the first support member 420, the rubber member 525 controls the left and right direction gap of the moving guide 500 with respect to the fixed guide 400, and finally controls the left and right direction gap of the upper rail 200.

[0083] The second mounting portion 526 is formed to extend to the upper side of the first mounting portion 524 and selectively connected with the second support member 430.

[0084] The second mounting portion 526 includes a connecting member 526a and a roller member 526b.

[0085] As shown in Figure 9 and Figure 10 , the connecting member 526a is formed in a "U" shape to accommodate the second support member 430 inside thereof.

[0086] Since the upper surface of the second support member 430 is gradually inclined upward (refer to Figure 8b , when the main body portion 522 moves based on switching to the locking mode, the connecting member 526a moves along the inclined surface in a state of accommodating the upper surface of the second support member 430 inside, and thus the roller member 526b can be brought into contact with the upper surface of the lower guide rail 100.

[0087] That is, the roller member 526b is combined to the outer side surface of the connecting member 526a to be in contact with the upper surface of the lower guide rail 100, and as shown in Figure 11 , when the connecting member 526a moves along the upper surface of the second support member 430 in the locking mode, the roller member 526b controls the gap of the moving guide 500 with respect to the up-and-down direction of the fixed guide 400 together with the roller 202 (refer to Figure 3 ), and finally controls the gap of the upper guide rail 200 with respect to the up-and-down direction.

[0088] Finally, in the present embodiment, by the rubber member 525 combined to the first mounting portion 524 and the roller member 526b combined to the connecting member 526a of the second mounting portion 526, in the locking mode, the gap of the guide bracket 520 with respect to the left-and-right and up-and-down directions of the fixed guide 400 can be controlled, and thus the up-and-down and left-and-right movements of the upper guide rail 200 can be prevented, and thus the vibration and the shaking of the upper guide rail 200 can be prevented in advance, and thus the product quality can be improved.

[0089] Meanwhile, in the present embodiment, as shown in Figure 12 , when the locking module 300 is rotated when switching from the locking mode to the moving mode, the guide bracket 520 is selectively disconnected from the fixed guide 400 according to the movement thereof, to secure the space for the movement of the upper guide rail 200 on the lower guide rail 100, and thus the easy movement of the upper guide rail 200 can be achieved, and thus the difference in the operation force of the upper guide rail 200 during the movement can be prevented in advance.

[0090] In the present application, as the locking module is caught in the lower rail, the rotating bracket is rotated by elastic force, so the movement guide connected with the rotating bracket slides to the fixed bracket to be installed, and the gap of the upper and lower and left and right directions of the lower rail is controlled according to the inclined shape of the fixed bracket, thereby having the effect that the upper and lower and left and right directions of the seat can be prevented from moving in the fixed state.

[0091] Therefore, in the present application, as the upper rail can be prevented from vibrating and shaking, etc. in advance, the effect that the product quality of the seat can be improved is achieved.

[0092] In addition, in the present application, as the locking module is released from the lower rail, the rotating bracket is rotated by the locking module, so the movement guide is released from the fixed bracket to be installed, so that the upper rail can slide, thereby having the effect that the generation of the difference in operating force caused by the sliding of the upper rail can be prevented in advance.

[0093] The above, the present application is described with reference to the embodiments shown in the accompanying drawings, but this is only an example, those skilled in the art should be able to understand that various modifications can be made therefrom, and all or part of the above-mentioned embodiments can be selectively combined to constitute. Therefore, the true technical protection scope of the present application should be defined by the technical idea of the appended claims.

Claims

1. A long slide rail system for a vehicle seat, characterized by, Comprising: a lower rail fixedly provided on a floor of a vehicle and having a length; an upper rail combined with the lower rail so that a seat cushion slides along the lower rail; a locking module installed on the upper rail, enabling the upper rail to slide when unblocked from a locking hole formed in the lower rail; a pair of fixed guides provided apart from each other on the upper rail in a front and rear direction of the locking module and combined with the upper rail; and a moving guide selectively moved to be connected to the fixed guides as the locking module is blocked in the locking hole and controls a gap in left and right and up and down directions of the upper rail inside the lower rail.

2. The long rail system for a vehicle seat according to claim 1, wherein the fixed guide includes: a main body fixedly combined to the upper rail; a pair of first support parts formed upright opposite to each other on the main body; and a second support part extended from the first support parts in a stepped manner.

3. The long rail system for a vehicle seat according to claim 2, wherein a distance between the first support parts gradually increases in a direction in which the moving guide moves.

4. The long rail system for a vehicle seat according to claim 2, wherein the second support part is integrally formed and extended with the first support parts and disposed side by side to each other, an upper surface of the second support part being inclined upward in a direction in which the moving guide moves.

5. The long rail system for a vehicle seat according to claim 2, wherein the moving guide includes: a pair of rotation brackets rotatably combined to the locking module in opposite directions to the fixed guide; and a guide bracket rotatably combined to the rotation brackets and selectively moved to be connected to the first support parts and the second support parts as the rotation brackets rotate.

6. The long rail system for a vehicle seat according to claim 5, wherein the rotation brackets are connected to each other by an elastic part, the rotation brackets being rotated together as the locking module rotates to be unblocked from the locking hole, thereby instantaneously elastically moving the guide bracket in a direction in which the guide bracket is unconnected from the first support parts and the second support parts.

7. The long rail system for a vehicle seat according to claim 6, wherein the rotation bracket includes a protruding part protruding to the locking module.

8. The long rail system for a vehicle seat according to claim 5, wherein the guide bracket includes: a main body part connected to the main body and movable in a front and rear direction; a first mounting part extended in a left and right direction of the main body part and selectively connected to the first support parts; and a second mounting part extended upward of the first mounting part and selectively connected to the second support parts. 9.The long slide rail system for a vehicle seat according to claim 8, wherein the first mounting portion includes a rubber member coupled to an outer side surface of the first mounting portion to contact a side surface of the lower rail. 10.The long slide rail system for a vehicle seat according to claim 8, wherein the second mounting portion includes: a connecting member formed in a "U" shape to accommodate the second support member therein; and a roller member coupled to an outer side surface of the connecting member to contact an upper surface of the lower rail. 11.The long slide rail system for a vehicle seat according to claim 8, wherein the main body portion includes an elastic member disposed in front of the main body portion at the main body connection to selectively provide an elastic restoring force in a compressed state as moving toward the fixed guide.

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