Rail structure for vehicle, seat and vehicle

Abstract

The utility model relates to a track structure for a vehicle, a seat and the vehicle, and the track structure (1) comprises slide rails (400) which are arranged in parallel and comprise a movable rail (410) and a fixed rail (420); the two ends of the support (100) are fixed to the movable rails (410) of the sliding rails (400) respectively; the driving device (200) is arranged on the bracket (100); a transmission device (500), which is designed to convert a drive movement of the drive device (200) into a linear movement of a movable rail (410) of the slide rail (400), and which has a first transmission part (510) and a second transmission part (520), the first transmission part (510) being mounted at an end of the support (100) and the second transmission part (520) being mounted on the movable rail (410), the first transmission part (510) being mounted at an end of the support (100) and the second transmission part (520) being mounted on the movable rail (410) and the second transmission part (520) being mounted on the movable rail (410). The first transmission part (510) and the second transmission part (520) are assembled together in the assembling direction perpendicular to the mounting plane of the sliding rail (400).

Description

TECHNICAL FIELD

[0001] The utility model relates to a track structure for a vehicle, a seat and a vehicle, the seat and the vehicle can have the track structure. BACKGROUND

[0002] Referring to Figures 1 to 6 At present in the electric sliding rail field, the gear box 50 is installed on the upper rail 21 of the sliding rail 20, and the upper rail 21 moves on the lower rail 22 by the driving of the gear box 50. The motor support 10 is difficult to assemble at the client end, and the soft shaft hole 51 on the gear box 50 and the motor 30 need to be manually aligned, which adversely affects the assembly rhythm and reduces the work efficiency. In addition, permanent deformation of the soft shaft 40 occurs during the manual assembly process, and there is a risk of abnormal sound at the product end. SUMMARY

[0003] The utility model aims at providing a track structure for a vehicle and a seat and a vehicle with the track structure, which can realize simple assembly and improve assembly efficiency.

[0004] The object is achieved by a track structure for a vehicle according to the utility model, comprising: sliding rails arranged parallel to each other, comprising a movable rail and a fixed rail; a support, both ends of which are fixed at the movable rail of the sliding rail; a drive device arranged on the support; a transmission device designed to convert the driving movement of the drive device into the linear movement of the movable rail of the sliding rail, and having a first transmission part and a second transmission part, the first transmission part being installed at the end of the support, and the second transmission part being installed on the movable rail, wherein the first transmission part and the second transmission part are assembled together in the assembly direction perpendicular to the installation plane of the sliding rail.

[0005] According to the embodiment of the utility model, the transmission device is a worm gear transmission device, wherein one of the first transmission part and the second transmission part comprises a worm wheel, and the other comprises a worm.

[0006] According to the embodiment of the utility model, the first transmission part comprises a first housing having a first cavity for accommodating one of the worm wheel or the worm, and the second transmission part comprises a second housing having a second cavity for accommodating the other of the worm wheel or the worm, wherein, with reference to the assembly direction, the first cavity and the second cavity have windows facing each other, at least one of the worm wheel and the worm can extend out of the window, so that the worm wheel and the worm can engage with each other.

[0007] According to the embodiment of the utility model, the first housing is assembled at the end of the support in a shape-fitting manner, and / or the second housing is assembled on the movable rail in an interference fit, a latching, welding, bonding or threaded connection.

[0008] According to the embodiment of the present application, the second shell is provided with a positioning protrusion on the outer side.

[0009] According to the embodiment of the present application, the first shell is provided with a dovetail part on the side away from the window, and the end part of the bracket is provided with a dovetail groove, and the dovetail part can be inserted into the dovetail groove.

[0010] According to the embodiment of the present application, the dovetail part is provided with a recess for accommodating the lubricating grease.

[0011] According to the embodiment of the present application, the first shell and the second shell are designed in a split type, preferably in a two-piece type.

[0012] According to the embodiment of the present application, the bracket is arranged perpendicular to the slide rail.

[0013] According to the embodiment of the present application, the transmission device is arranged at at least one end part of the bracket.

[0014] According to the embodiment of the present application, the driving device and the transmission device are connected via a flexible shaft transmission, wherein the flexible shaft is connected with the first transmission part of the transmission device.

[0015] According to another aspect of the present application, a seat is provided with the above track structure, wherein the body of the seat is connected with the movable rail.

[0016] According to still another aspect of the present application, a vehicle is provided with the above track structure for the vehicle or the seat, wherein the fixed rail is mounted on the body of the vehicle, and the movable rail is connected with the seat of the vehicle.

[0017] By the technical scheme provided in the present application, the transmission device is divided into the first transmission part and the second transmission part, and the worm wheel and the worm are respectively allocated to the first transmission part and the second transmission part. When assembling, after the first transmission part and the second transmission part are respectively mounted on the bracket and the slide rail, the first transmission part and the second transmission part can be assembled together in the assembly direction perpendicular to the mounting plane of the slide rail, and are fixed by fastening measures, thereby simplifying the assembly, especially realizing automatic installation, reducing the installation cost, improving the production rate, and preventing permanent deformation of the flexible shaft (if any). BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be described below with the aid of the accompanying schematic drawings, in which:

[0019] Figure 1 Fig. 1 is a schematic view of a vehicle electric track structure according to the prior art;

[0020] Figure 2 Fig. 2 is a schematic view of a vehicle electric track structure according to the present application;

[0021] Figure 3Fig. 6 is a schematic view of an electric track structure for a vehicle according to the prior art;

[0022] Figure 4 Fig. 7 is a schematic view of an electric track structure for a vehicle according to the prior art;

[0023] Figure 5 Fig. 8 is a schematic view of an electric track structure for a vehicle according to the prior art;

[0024] Figure 6 Fig. 9 is a schematic view of an electric track structure for a vehicle according to the prior art;

[0025] Figure 7 Fig. 10 is a side view of the track structure according to the utility model;

[0026] Figure 8 Fig. 11 is an exploded view of the transmission device of the track structure according to the utility model;

[0027] Figure 9 Fig. 12 is an exploded view of the first transmission part of the transmission device according to the utility model;

[0028] Figure 10 Fig. 13 is an exploded view of the second transmission part of the transmission device according to the utility model;

[0029] Figure 11 Fig. 14 is an exploded view of the transmission device of the track structure according to the utility model before assembly along the assembly direction; and

[0030] Figure 12 Fig. 15 is a schematic view of the second transmission part before installation on the slide rail according to the utility model;

[0031] Figure 13 Fig. 16 is a schematic view of the second transmission part after installation on the slide rail according to the utility model;

[0032] Figure 14 Fig. 17 is a schematic view of the bracket and the first transmission part before assembly according to the utility model;

[0033] Figure 15 Fig. 18 is a schematic view of the bracket and the first transmission part after assembly according to the utility model;

[0034] Figure 16 Fig. 19 is an exploded view of the track structure according to the utility model before final assembly along the assembly direction; and

[0035] Figure 17 Fig. 20 is a top view of the track structure according to the utility model. DETAILED DESCRIPTION

[0036] The utility model will be further explained in detail in combination with the drawings of the specification. The following explanation is exemplary and not a limitation of the utility model. Those skilled in the art can think of other ways to realize the utility model on the basis of the preferred embodiment, and other ways also fall within the scope of the utility model.

[0037] In addition, the first, second and the like terms used in the specification are only used to distinguish objects for the purpose of clear description, and do not limit the size, quantity or other order of the objects described. The direction of the orientation or position relationship indicated by the directional term is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application, and does not indicate or imply that the object indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0038] Figure 7 And Figure 17 The side view and top view of the track structure 1 according to the embodiment of the utility model are shown respectively. It can be seen that the track structure 1 comprises: slide rails 400 arranged parallel to each other, comprising movable rails 410 and fixed rails 420; a bracket 100, both ends of which are fixed at the movable rails 410 of the slide rails 400 respectively; a driving device 200 arranged on the bracket 100; a transmission device 500 designed to convert the driving movement of the driving device 200 into the linear movement of the movable rails 410 of the slide rails 400, and having a first transmission part 510 and a second transmission part 520, wherein the first transmission part 510 is mounted at the end of the bracket 100, and the second transmission part 520 is mounted on the movable rails 410, wherein the first transmission part 510 and the second transmission part 520 are assembled together in the assembly direction perpendicular to the mounting plane of the slide rails 400.

[0039] It should be noted that, for the sake of clarity, only the movable rails 410 and the fixed rails 420 are shown in the drawings for the slide rails 400, and the slide rails can also include other components that are not important to the utility model and are not shown. Preferably, the movable rails 410 and the fixed rails 420 can be arranged in one plane.

[0040] In the example shown, the movable rails 410 and the fixed rails 420 extend linearly, and the movable rails 410 are arranged to be at least partially surrounded by the fixed rails 420. The movable rails 410 and the fixed rails 420 can be composed of metal profiles, such as U-shaped profiles.

[0041] The drive device 200 is, for example, an electric motor, such as a small-volume, high-power permanent-magnet single-output-shaft electric motor or a double-output-shaft electric motor, wherein the output shafts can be rotated in different directions. The drive device 200 can be directly or indirectly in driving connection with a transmission device 500 arranged on one or both sides thereof, i.e. the transmission device 500 can be arranged at one or both ends of the support 100 in order to transmit the driving movement of the drive device 200 via the transmission device 500 to the movable rail 410 of the slide rail 400, so that the movable rail 410 is moved relative to the fixed rail 420. To this end, the output shaft of the drive device 200 can be in driving connection with a first transmission part 510 of the drive device 200, which is preferably achieved by means of an intermediate shaft. Exemplarily, the intermediate shaft can be embodied as a flexible shaft.

[0042] Both ends of the support 100, which is equipped with the drive device 200, are preferably detachably fixed on the movable rail 410 of the slide rail 400, respectively. The support 100 can be linearly extended and has a predetermined structural strength and rigidity. Preferably, the support 100 can be arranged perpendicularly between a pair of slide rails 400 arranged parallel to each other, as shown in Figure 17

[0043] The transmission device 500 is designed as a worm gear transmission device, wherein one of the first transmission part 510 and the second transmission part 520 comprises a worm wheel and the other comprises a worm. In the following, it is described by way of example that the first transmission part 510 comprises a worm 610 and the second transmission part 520 comprises a worm wheel 620. Of course, depending on the actual circumstances, the first transmission part 510 can comprise a worm wheel 620 and the second transmission part 520 can comprise a worm 610.

[0044] Exemplarily, the axial end of the worm 610 is provided with an inner hole 611 in order to insert the output shaft or the flexible shaft of the drive device 200, so as to establish a force-transmitting form-fit connection. As shown in Figure 8 the inner hole 611 can have a square cross section, in which case the output shaft or the flexible shaft correspondingly has an end portion with a square cross section. Of course, the worm 610 can also be in driving connection with the output shaft or the flexible shaft of the drive device 200 in other suitable ways.

[0045] The first transmission part 510 comprises a first housing 601 having a first cavity 540 for rotatably accommodating the worm 610. In addition, the first housing 601 can also have a through hole for the output shaft or the flexible shaft of the drive device 200 or the worm, so that the connection of the output shaft or the flexible shaft with an axial end of the worm 610 can be achieved through the through hole.

[0046] ​Exemplarily, the first housing 601 of the first transmission part 510 can have an "Ω"-like shape, i.e. the first housing 601 has a protruding structure in the middle, in which the first cavity 540 is configured, and two extensions at the sides, which can be used for the fixation of the first transmission part 510 with the second transmission part 520.

[0047] The second transmission part 520 comprises a second housing 602 for a second cavity 640 in which a worm wheel 620 is rotatably accommodated. The worm wheel 620 can have a central threaded hole 621 for cooperating with a not shown lead screw. In this regard, the second housing 602 can have a not explicitly shown through hole for the lead screw.

[0048] With reference to the assembly direction (in the Figure 8 vertical direction), the first cavity 540 and the second cavity 640 have windows 511, 521 facing each other, from which at least one of the worm wheel 620 and the worm 610 can protrude, so that the worm wheel 620 and the worm 610 can engage with each other. Exemplarily, Figure 11 The worm wheel 620 is shown protruding from the second cavity of the second housing 602 of the second transmission part 520.

[0049] The facing abutment faces of the first housing 601 and the second housing 602 are preferably designed as flat surfaces.

[0050] According to an embodiment of the present application, the first housing 601 and the second housing 602 can be configured in a split manner, i.e. composed of multiple parts. Exemplarily, Figure 9 and Figure 10 The first housing 601 and the second housing 602 are respectively shown configured in a two-piece manner, i.e. the first housing 601 is split into two sub-housings 510a, 510b and the second housing 602 is split into two sub-housings 520a, 520b. Exemplarily, it can be seen from Figure 8 with reference to the axis direction of the worm 610 accommodated by the first housing 601, the abutment faces of the respective sub-housings of the first housing 601 and the second housing 602 can be parallel to each other. The respective sub-housings of the first housing 601 and the second housing 602 can be connected together by means of a threaded connection, adhesion, welding or other suitable means.

[0051] Figure 14 and Figure 15 A possible assembly solution of the bracket 100 with the first transmission part 510 is schematically shown. Here, the first housing 601 of the first transmission part 510 is form-fittingly assembled at the end of the bracket 100. For this purpose, with reference to the assembly direction, the side of the first housing 601 facing away from the window 511 has a dovetail 530 (see Figure 8 , Figure 9 and Figure 11), the end of the support 100 has a dovetail groove 110, the dovetail 530 and the dovetail groove 110 are shaped to match each other, so that the dovetail 530 can be inserted into the dovetail groove 110.

[0052] Preferably, the dovetail 530 is provided with a recess for accommodating lubricating grease. The dovetail 530 can be more easily inserted into the dovetail groove 110 by the lubricating grease.

[0053] In the case of the two-piece construction of the first housing 601 of the first transmission part 510, the dovetail 530 can be divided into a first dovetail part 530a and a second dovetail part 530b, whose top surfaces are in a plane in the mounted state, but the middle part of the first dovetail part 530a is designed concavely to form the above-mentioned recess.

[0054] Figure 12 and Figure 13 A possible assembly of the movable rail 410 with the second transmission part 520 is shown schematically. Here, the second housing 602 of the second transmission part 520 can be assembled on the movable rail 410 with an interference fit. For this purpose, the movable rail 410 is provided with a recess 411 for accommodating the second housing 602, the cross-sectional shape of which at least substantially matches, but is slightly smaller than the cross-sectional shape of the second housing 602, so that the second housing 602 can be held in the recess 411 without additional securing measures. From Figure 13 It can be seen from Fig. 6 that the top surface of the mounted second transmission part 520 is slightly lower than the top surface of the movable rail 410, which is advantageous for reducing the height of the rail structure 1 in the assembly direction.

[0055] In order to further prevent movement of the second housing 602 relative to the movable rail 410 in the direction of extension of the movable rail, the outer side of the second housing is provided with at least one positioning protrusion 522 (see Fig. 6), which can engage into a corresponding recess, not shown, of the movable rail 410. The positioning protrusion 522 can also serve as a foolproof structure to better identify the mounting position of the second transmission part 520 and prevent incorrect assembly direction. Figure 8

[0056] Alternatively, the second transmission part 520 can be assembled on the movable rail 410 by means of a snap-in connection, a welding, an adhesive connection or a threaded connection.

[0057] In order to achieve the positioning of the first transmission part 510 relative to the second transmission part 520, the first housing 601 of the first transmission part 510 and the second housing 602 of the second transmission part 520 can be provided with a positioning pin and a positioning hole, respectively, on the side facing each other in the assembly direction. For example, it can be seen from Fig. 6 that the second housing 602 has a positioning hole 604 and the first housing is provided with a positioning pin 603, which can be inserted into the positioning hole 604. Figure 8 ​​

[0058] When the rail structure 1 is used for a vehicle seat, for example, when the rail structure is used to mount a vehicle seat on a vehicle body of a vehicle, the fixed rail 420 can be mounted on the vehicle body of the vehicle, and the movable rail 410 can be connected with a body of the vehicle seat.

[0059] Therefore, according to the utility model, the electric sliding rail gear box structure of the automobile or vehicle fixed in Z direction is provided, which comprises a motor support, a motor, a flexible shaft and a gear box, namely, a transmission device, the motor drives the gear box to work through the flexible shaft, the motor is installed on the motor support, the gear box and the motor support are installed on the sliding rail, wherein the gear box is divided into a first gear box (namely, a first transmission part) for installing a worm and a second gear box (namely, a second transmission part) for installing a worm wheel, the first gear box is clamped with the motor support, the flexible shaft is combined with the worm to drive the worm to rotate, the second gear box is installed on the sliding rail, the first gear box is installed on the second gear box in Z direction, so that the worm is engaged with the worm wheel, and the rotating worm drives the worm wheel to rotate. The flexible shaft can be inserted into the inner hole of the worm in advance and combined with the worm. The bottom surface of the first gear box and the top surface of the second gear box are installed together in Z direction. A worm exposure window is arranged on the bottom surface of the first gear box, and at least a part of the worm is exposed through the worm exposure window; a worm wheel exposure window is arranged on the top surface of the second gear box, and at least a part of the worm wheel is exposed through the worm wheel exposure window. A dovetail is arranged on the top surface of the first gear box, and a dovetail groove matched with the dovetail is arranged on the motor support. The dovetail is inserted into the dovetail groove. The first gear box and the first gear box are both in left-right half structure.

[0060] The gear box and the motor support are installed on the upper rail, namely, the movable rail of the sliding rail.

[0061] The worm can be arranged in the first gear box, and the worm wheel can be arranged in the second gear box.

[0062] The second gear box is installed in the gap of the upper rail of the sliding rail and fixedly connected with the upper rail.

[0063] After the bottom surface of the first gear box is installed on the top surface of the second gear box in Z direction, the worm is engaged with the worm wheel, and the rotating worm drives the worm wheel to rotate. Therefore, under the driving of the motor, the flexible shaft, the worm and the worm wheel, the second gear box drives the upper rail of the sliding rail to move in the lower rail.

[0064] The first gear box and the first gear box can both be in left-right half structure, namely, a first left gear box, a first right gear box, a second left gear box and a second right gear box. The material of the gear box can be plastic or metal, and the left-right half structure can be connected through screwing, various welding, riveting, clamping, gluing and the like.

[0065] It is to be explained that the features or feature combinations of the device according to the utility model explained above and the features and feature combinations mentioned in and / or only shown in the drawings can not only be used in the combinations given accordingly, but also in other combinations or alone, without departing from the scope of the utility model.

[0066] The utility model has been explained through the above implementation, but it should be understood that the above implementation is only for the purpose of example and illustration, and is not intended to limit the utility model to the scope of the illustrated implementation. Those skilled in the art should understand that more kinds of variations and modifications can be made according to the teaching of the utility model, and these variations and modifications all fall within the protection scope of the utility model.

Claims

1. A track structure (1) for a vehicle, comprising: - slide rails (400) arranged parallel to each other, comprising a movable rail (410) and a fixed rail (420); - a bracket (100) fixed at both ends to the movable rail (410) of the slide rails (400); - a drive device (200) arranged on the bracket (100); - a transmission device (500) designed to convert a drive movement of the drive device (200) into a linear movement of the movable rail (410) of the slide rails (400) and having a first transmission part (510) and a second transmission part (520), characterized in that - the first transmission part (510) is mounted at the end of the bracket (100) and the second transmission part (520) is mounted on the movable rail (410), wherein the first transmission part (510) and the second transmission part (520) are assembled together in an assembly direction perpendicular to the mounting plane of the slide rails (400).

2. Rail structure (1) according to claim 1, characterized in that - the transmission device (500) is a worm gear transmission device, wherein one of the first transmission part (510) and the second transmission part (520) comprises a worm wheel and the other comprises a worm.

3. The track structure (1) according to claim 2, characterized in that - the first transmission part (510) comprises a first housing (601) having a first cavity (540) for accommodating one of the worm wheel or the worm, - the second transmission part (520) comprises a second housing (602) having a second cavity (640) for accommodating the other of the worm wheel or the worm, - wherein, with reference to the assembly direction, the first cavity (540) and the second cavity (640) have windows facing each other from which at least one of the worm wheel and the worm can protrude so that the worm wheel and the worm can engage with each other.

4. The track structure (1) according to claim 3, characterized in that - the first housing is assembled at the end of the bracket (100) in a form-fit and / or the second housing is assembled on the movable rail (410) in an interference-fit, a latching, a welding, a gluing or a screw connection.

5. The track structure (1) according to claim 4, characterized in that - the second housing is provided on the outside with a positioning protrusion (522).

6. The track structure (1) according to claim 4, characterized in that - the side of the first housing facing away from the window has a dovetail (530) and the end of the bracket (100) has a dovetail groove (110) into which the dovetail (530) can be inserted.

7. The track structure (1) according to claim 6, characterized in that - the dovetail (530) is provided with a recess for accommodating a lubricating grease.

8. The track structure (1) according to claim 3, characterized in that - the first housing and the second housing are designed in two parts.

9. The track structure (1) according to claim 8, characterized in that - the first housing and the second housing are each designed in two pieces.

10. The track structure (1) according to any one of claims 1 to 9, characterized in that - the bracket (100) is arranged perpendicular to the slide rails (400).

11. The track structure (1) according to any one of claims 1 to 9, characterized in that - the transmission device (500) is arranged at at least one end of the bracket (100).

12. The track structure (1) according to any one of claims 1 to 9, characterized in that - the drive device (200) and the transmission device (500) are drivingly connected via a flexible shaft (300), wherein the flexible shaft (300) is connected to the first transmission part (510) of the transmission device (500).

13. A seat, characterized by The seat has a track structure (1) for a vehicle according to any one of claims 1 to 12, wherein the body of the seat is connected with the movable rail (410).

14. Vehicle, characterized in that The vehicle has a track structure (1) for a vehicle according to any one of claims 1 to 12 or a seat according to claim 13, wherein the fixed rail (420) is mounted on a vehicle body of the vehicle, and the movable rail (410) is connected with a seat of the vehicle.

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