Electric guide rail system, seat assembly, center console box and automobile
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- NINGBO XINTAI MACHINERY
- Filing Date
- 2024-02-04
- Publication Date
- 2026-08-06
Smart Images
Figure 2026526253000001_ABST
Abstract
Description
Technical Field
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[0003]
[0001] The present invention relates to the field of vehicle technology, and specifically to an electric guide rail device, a seat assembly, a center console box, and a motor vehicle.
Background Art
[0002] An electric slide rail device is generally used to realize a movable device in a motor vehicle. For example, an automobile seat is a device that moves in the front-rear or left-right direction of the vehicle with respect to the vehicle body floor of the motor vehicle. Here, the electric slide rail device mainly includes an upper slide rail connected to the bottom of the seat body, a lower slide rail fixed to the vehicle body floor, a drive motor, and a transmission structure. The transmission structure includes an internal thread portion (or gear) provided on the upper slide rail and a feed screw (or rack) provided on the lower slide rail. Thereby, by utilizing the rotation of the drive motor and the transmission between the internal thread portion (or gear) and the feed screw (or rack), the upper slide rail is moved with respect to the lower slide rail.
[0003] However, due to the meshing connection between the components of the metal members such as gears and racks provided on the upper slide rail and the lower slide rail, noise is generated during the process of the seat body moving with respect to the vehicle body floor, and the slide is not smooth due to assembly tolerance factors.
Summary of the Invention
Problems to be Solved by the Invention
[0004] The problem to be solved by the present invention is how to reduce the noise generated during the process of a movable device in a motor vehicle, for example, the seat body moving with respect to the vehicle body floor, and the non-smoothness of the slide caused by assembly tolerance factors.
Means for Solving the Problems
[0005] To solve the above problems, the present invention provides an electric guide rail device comprising a slide rail assembly, a drive unit, and a belt transmission assembly, wherein the slide rail assembly includes a first slide rail provided on the seat body or console box body and a second slide rail provided on the vehicle floor, and the first slide rail and the second slide rail are in a sliding fit, the belt transmission assembly includes a drive wheel, a pulley, and a synchronous belt, at least a portion of the synchronous belt is provided in the second slide rail, the synchronous belt is wrapped around the drive wheel and the pulley, the drive unit is connected to the drive wheel and used to drive and rotate the drive wheel, and the synchronous belt is connected to the first slide rail. The central axes of both the drive wheel and the pulley are positioned vertically.
[0006] Optionally, the second slide rail includes a slide rail body and a pulley fixing member, the pulley fixing member is provided on the side surface of the slide rail body, and at least a portion of the belt transmission assembly is provided on the pulley fixing member.
[0007] Optionally, the pulley fixing member includes a pulley mounting seat and a protective cover, the pulley mounting seat is provided at the end of the protective cover along the extending direction of the second slide rail, the pulley is mounted on the pulley mounting seat, and the drive wheel and the pulley are provided on the protective cover.
[0008] Optionally, the second slide rail includes at least two slide rail bodies, the at least two slide rail bodies are spaced apart along a direction perpendicular to their own extending direction, there is one drive unit and one synchronous belt, the pulley fixing member has a cavity, and at least a portion of the synchronous belt, the drive unit and the drive wheel are provided within the cavity.
[0009] Optionally, the synchronization belt is drilled into the slide rail body, and there are two pulleys, each of which is provided at both ends of the second slide rail.
[0010] Optionally, the belt drive assembly further includes tension pulleys, with two tension pulleys each located at both ends of the second slide rail, and two pulleys each located at both ends of the second slide rail, with the tension pulleys located on one side of the pulleys.
[0011] Optionally, a portion of the synchronization belt may be drilled into the slide rail body, the other portion of the synchronization belt may be drilled into the pulley fixing member, or at least a portion of the synchronization belt may be provided within the pulley fixing member.
[0012] Optionally, the pulley and the drive wheel are provided at both ends of the second slide rail, a portion of the synchronous belt is drilled into the slide rail body, and the synchronous belt is fitted onto the drive wheel and the pulley.
[0013] Optionally, the belt drive assembly further includes tension pulleys and retaining pulleys, with two of the pulleys each provided at one end of two of the second slide rails, and a plurality of the tension pulleys each provided at the other end of two of the second slide rails, and the retaining pulleys and the drive wheels provided in close contact with the outer and inner walls of the synchronous belt and used to press the synchronous belt against the drive wheels, the synchronous belt is wrapped around the pulleys, the tension pulleys and the drive wheels, and different portions of the synchronous belt are drilled into the two slide rail bodies.
[0014] Optionally, the electric guide rail device includes two of the belt drive assemblies, the second slide rail includes at least two of the slide rail bodies, the at least two of the slide rail bodies are spaced apart along a direction perpendicular to its own extending direction, and the synchronous belts of the two belt drive assemblies are each drilled within the two of the slide rail bodies.
[0015] Optionally, the electric guide rail device includes two of the drive units, each drive unit connected to the drive wheel in each of the belt drive assemblies, the belt drive assemblies further including a plurality of retaining pulleys, some of which are provided around the circumferential direction of one of the drive wheels, and other numbers of which are provided around the circumferential direction of the other drive wheel.
[0016] Optionally, the electric guide rail device includes one of the drive units, the synchronous belt of the belt drive assembly is drilled in the corresponding second slide rail, the drive unit is connected to a drive wheel in one of the belt drive assemblies, one of the belt drive assemblies is transmitted to the other belt drive assembly, and is used to move and operate the other belt drive assembly.
[0017] Optionally, the drive wheel includes belt mounting portions and teeth that are sequentially connected along its axial direction, the synchronous belt is fitted onto the belt mounting portions, and the teeth of one belt drive assembly mesh with the teeth of the other belt drive assembly.
[0018] Optionally, the belt drive assembly further includes a retaining pulley and a drive gear, the drive wheel includes belt mounting portions and teeth sequentially connected along its axial direction, the synchronous belt is wrapped around the pulley, the belt mounting portions of the drive wheel and the retaining pulley, and the teeth of one belt drive assembly mesh with the teeth of the other belt drive assembly via the drive gear.
[0019] Optionally, one of the belt drive assemblies further includes a transmission belt, a first drive wheel, and a second drive wheel, and the other belt drive assembly further includes a third drive wheel, the drive unit is connected to the second drive wheel, the second drive wheel is meshed with the first drive wheel, the second drive wheel is transmitted to the third drive wheel via the transmission belt, and the first drive wheel and the third drive wheel are each connected to the synchronous belt of the two belt drive assemblies.
[0020] Optionally, the inner and outer walls of the synchronous belt have internal teeth and external teeth, respectively, the internal teeth of the synchronous belt are fitted onto the pulley and the drive wheel, the synchronous belts in the two belt drive assemblies are meshed and connected via the external teeth, and the drive wheels in the two belt drive assemblies are arranged opposite each other and used to press the meshing portions of the two synchronous belts together.
[0021] Optionally, the belt drive assembly includes a retaining pulley and one drive wheel, the drive wheel includes two belt mounting sections sequentially connected along its axial direction, the synchronous belts of two belt drive assemblies are fitted onto the two belt mounting sections and the pulley, respectively, the retaining pulley and the drive wheel are connected to the outer and inner walls of the synchronous belts and used to press each synchronous belt against each belt mounting section.
[0022] Optionally, the belt drive assembly includes a first retaining pulley, a second retaining pulley, and a third retaining pulley, the synchronous belt having internal and external teeth, the internal teeth of one of the synchronous belts fitted to one of the pulleys and the first retaining pulley, the internal teeth of the other synchronous belt fitted to the other pulley, the second retaining pulley and the drive wheel, the third retaining pulley provided on one side of the drive wheel and connected to the external teeth of the other synchronous belt, used to press the other synchronous belt against the drive wheel, and the two synchronous belts are meshed and connected via the external teeth. The first retaining pulley and the second retaining pulley are provided between the slide rail bodies of the two second slide rails, and the first retaining pulley is provided on one side of the second retaining pulley, and are used to press the meshing points of the two synchronous belts together.
[0023] Optionally, the belt drive assembly further includes an elastic tension member, the elastic tension member being located below the pulley fixing member and on one side of the pulley, and the elastic tension member being connected to one of the pulleys and used during assembly to adjust the position of the pulley and to match the tension of the two synchronous belts.
[0024] Optionally, the first slide rail includes at least two slide rail members, the at least two slide rail members are spaced apart along a direction perpendicular to their own extending direction, the slide rail members include a moving member and a first guide rail section, the first guide rail section is provided on a side of the first slide rail perpendicular to its extending direction, two sets of the moving members are spaced apart along a direction perpendicular to the extending direction of the first slide rail, and each set of the moving members is connected to the first guide rail section, the slide rail body includes a second guide rail section, the first guide rail section is fitted into the second guide rail section, each of the two sets of the moving members is located within the second guide rail section and is used to move relative to the second guide rail section, and the synchronization belt is located between the moving member and the second guide rail section.
[0025] Optionally, the slide rail body further includes a support portion, the support portion is provided between two of the second guide rail portions, and the top surface of the support portion is lower than the bottom surface of the second guide rail portions.
[0026] Optionally, the electric guide rail device further includes a connecting member, the connecting member includes a first connecting seat and a second connecting seat, the first connecting seat is connected to the first guide rail portion of the first slide rail, the first connecting seat is connected to the second connecting seat and a mounting groove is provided in the first connecting seat and / or the second connecting seat, and a part of the synchronous belt is penetrated in the mounting groove, and the first connecting seat is connected to the second connecting seat.
[0027] Compared with the prior art, when the first slide rail in the present invention slides relative to the second slide rail, the driving wheel can be driven to rotate by the operation of the driving part, and the driving wheel and the pulley are connected through a synchronous belt. Thereby, the synchronous belt is moved and transmitted by the rotation of the driving wheel, and the synchronous belt is connected to the first slide rail, whereby the synchronous belt moves the first slide rail and slides it relative to the second slide rail, and realizes the movement of a movable device in the automobile, such as the front-back or left-right movement of the seat body or the console box body relative to the vehicle body floor.
[0028] Here, since the synchronous belt in the belt transmission assembly is wound around the driving wheel and the pulley, and the driving wheel and the pulley are flexibly connected through the synchronous belt, not only the movement noise of the seat body relative to the vehicle body floor is reduced, but also the transmission acting force of the driving wheel is transmitted to the pulley and the first slide rail through the synchronous belt, reducing the assembly tolerance, thereby making the sliding operation of the first slide rail relative to the second slide rail smoother. By providing at least a part of the synchronous belt in the second slide rail, it is possible to avoid the dirt in the automobile from entering other members of the belt transmission assembly through the synchronous belt, not only reducing the possibility of transmission failure of the belt transmission assembly, but also not affecting the assembly work of the second slide rail and the vehicle body floor and the first slide rail and the seat body.
[0029] Because the area of the upper slide rail and the seat body or console box body becomes the legroom for rear-seat occupants, the usable space of the seat body is very limited. In related technologies, the drive motor and transmission structure are usually located below the seat body, thereby reducing the legroom for rear-seat occupants in the seat body. In the present invention, the central axes of both the drive wheel and pulley are provided along the vertical direction, so that the synchronous belt extends and reciprocates in the horizontal plane, and at least a portion of the synchronous belt is provided within the second slide rail. Therefore, the drive unit and the entire belt transmission assembly (including the drive wheel, pulley and synchronous belt) are basically located in an area lower than the horizontal height within the second slide rail. Accordingly, the drive unit for driving the belt transmission assembly is also located in a low position, so as to not occupy the area below the seat body or console box body, the drive motor and transmission structure are not only secured to the rear-seat occupants, but also to provide convenience for the arrangement and assembly of the belt transmission assembly and drive unit.
[0030] Another embodiment of the present invention provides a seat assembly comprising an electric guide rail device as described above, and further comprising a seat body, the seat body being connected to a first slide rail of the electric guide rail device, wherein the extending directions of the first slide rail and the second slide rail are parallel to the direction of movement of the seat body.
[0031] As a result, the seat assembly includes an electric guide rail device, and therefore the seat assembly possesses at least all the technical effects of the electric guide rail device, which will not be explained further here.
[0032] Another embodiment of the present invention provides a center console box, comprising an electric guide rail device as described above, and further comprising a console box body, wherein the console box body is connected to a first slide rail of the electric guide rail device, and the extending directions of the first slide rail and the second slide rail are parallel to the direction of movement of the console box body.
[0033] As a result, the center console box includes an electric guide rail system, and therefore the center console box possesses at least all the technical effects of the electric guide rail system, which will not be explained further here.
[0034] Another embodiment of the present invention provides an automobile, which includes a seat assembly as described above, or a center console box as described above, or an electric guide rail device as described above.
[0035] As a result, since the automobile includes a seat assembly, a center console box, or an electric guide rail device, the automobile has all the technical effects of at least a seat assembly, a center console box, or an electric guide rail device, and further explanation is omitted here. [Brief explanation of the drawing]
[0036] [Figure 1] This is a schematic diagram of the shaft-side structure of an electric guide rail device in an embodiment of the present invention. [Figure 2] Figure 1 shows a schematic diagram of the disassembled structure of an electric guide rail device in an embodiment of the present invention. [Figure 3] This is an embodiment 1 of a schematic diagram of the structure of an electric guide rail device having a single synchronous belt according to the present invention. [Figure 4] This is an embodiment 2 of a schematic diagram of the structure of an electric guide rail device having a single synchronous belt according to the present invention. [Figure 5] This is Embodiment 3 of a schematic diagram of the structure of an electric guide rail device having a single synchronous belt according to the present invention. [Figure 6] This is Embodiment 4 of a schematic diagram of the structure of an electric guide rail device having a single synchronous belt according to the present invention. [Figure 7] This is Embodiment 5 of a schematic diagram of the structure of an electric guide rail device having a single synchronous belt according to the present invention. [Figure 8] This is an embodiment 6 of a schematic diagram of the structure of an electric guide rail device having a single synchronous belt according to the present invention. [Figure 9]This is an embodiment 1 of a schematic diagram of the structure of an electric guide rail device having two synchronous belts according to the present invention. [Figure 10] This is an embodiment 2 of a schematic diagram of the structure of an electric guide rail device having two synchronous belts according to the present invention. [Figure 11] This is Embodiment 3 of the schematic diagram of the structure of an electric guide rail device having two synchronous belts according to the present invention. [Figure 12] This is Embodiment 4 of a schematic diagram of the structure of an electric guide rail device having two synchronous belts according to the present invention. [Figure 13] This is Embodiment 5 of a schematic diagram of the structure of an electric guide rail device having two synchronous belts according to the present invention. [Figure 14] This is Embodiment 6 of a schematic diagram of the structure of an electric guide rail device having two synchronous belts according to the present invention. [Figure 15] This is Embodiment 7 of a schematic diagram of the structure of an electric guide rail device having two synchronous belts according to the present invention. [Figure 16] This is Embodiment 8 of a schematic diagram of the structure of an electric guide rail device having two synchronous belts according to the present invention. [Figure 17] This is Example 1, a schematic diagram of the structure of a belt transmission assembly in an embodiment of the present invention. [Figure 18] This is Example 2 of a schematic diagram of the structure of a belt transmission assembly in an embodiment of the present invention. [Figure 19] This is a schematic diagram of the structure of a seat assembly in an embodiment of the present invention. [Figure 20] Figure 2 shows a schematic diagram of the disassembled structure of the electric guide rail device in an embodiment of the present invention. [Figure 21] This is a schematic diagram of the enlarged structure of location A in Figure 20. [Figure 22] This is a schematic diagram of the structure of the first slide rail and connecting member in an embodiment of the present invention. [Modes for carrying out the invention]
[0037] To make the above-mentioned objectives, features, and advantages of the present invention clearer and easier to understand, specific embodiments of the present invention will be described in detail below with reference to the drawings.
[0038] In the coordinate system XYZ provided herein, the positive X-axis represents backward, the reverse X-axis represents forward, the positive Y-axis represents right, the reverse Y-axis represents left, the positive Z-axis represents upward, and the reverse Z-axis represents downward. Furthermore, terms such as "first," "second," etc., in the specification, claims, and drawings of the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. As should be understood, such terms are interchangeable where appropriate, and the embodiments of the present invention described herein may be carried out in an order other than that illustrated or described herein.
[0039] In describing the present invention, unless otherwise specifically defined and limited, the terms “installation,” “attachment,” “connection,” and “connection” should be understood in a broad sense. For example, these may be fixed connections, removable connections, integral connections, mechanical connections, direct connections, indirect connections via an intermediate medium, or internal communication between two parts. Those skilled in the art will be able to understand the specific meaning of these terms in the present invention depending on the specific circumstances.
[0040] In this specification, any reference to terms such as “Example,” “One Example,” and “One Embodiment” means that the specific features, structures, materials, or properties described in relation to such example or embodiment are included in at least one example or embodiment of the present invention. In this specification, exemplary expressions of the above terms do not necessarily refer to the same example or embodiment. Furthermore, the specific features, structures, materials, or properties described may be combined in an appropriate manner in any one or more examples or embodiments.
[0041] To solve the above technical problems, as shown in conjunction with Figure 1, an embodiment of the present invention provides an electric guide rail device comprising a slide rail assembly 2, a drive unit 1, and a belt transmission assembly 3, wherein the slide rail assembly 2 includes a first slide rail 21 provided on the seat body 5 and a second slide rail 22 provided on the vehicle floor, and the first slide rail 21 and the second slide rail 22 are in a sliding fit, the belt transmission assembly 3 includes a drive wheel 31, a pulley 32, and a synchronous belt 33, at least a portion of the synchronous belt 33 is provided on the second slide rail 22, the synchronous belt 33 is wrapped around the drive wheel 31 and the pulley 32, the drive unit 1 is connected to the drive wheel 31 and used to drive and rotate the drive wheel 31, and the synchronous belt 33 is connected to the first slide rail 21. The central axes of both the drive wheel 31 and the pulley 32 are positioned vertically.
[0042] The first slide rail 21 can be provided at the bottom of the seat body 5, and the second slide rail 22 can be assembled on the vehicle floor. Specifically, the synchronous belt 33 is provided around the drive wheel 31 and the pulley 32, and when the central axes of both the drive wheel 31 and the pulley 32 are aligned vertically, the synchronous belt 33, the drive wheel 31 and the pulley 32 can be considered to be in the same horizontal plane, the synchronous belt extends in this horizontal plane to form a closed loop, and moves back and forth when driven by the drive wheel 31.
[0043] Here, at least a portion of the synchronous belt 33 is provided within the second slide rail 22, so that the drive wheel 31, pulley 32, and drive unit 1 connected to the synchronous belt 33 can be located inside or outside the second slide rail 22, thereby not only not occupying the area space of the seat body 5, but also ensuring sufficient legroom for rear seat occupants. Here, the vertical direction means the Z-axis direction of the coordinate system in Figure 1.
[0044] In this invention, when the first slide rail 21 slides relative to the second slide rail 22, the drive unit 1 drives the drive wheel 31 to rotate. The drive wheel 31 and the pulley 32 are connected via a synchronous belt 33, and the rotation of the drive wheel 31 moves the synchronous belt 33 to transmit power. The synchronous belt 33 is connected to the first slide rail 21, and the synchronous belt 33 moves the first slide rail 21 to slide relative to the second slide rail 22, thereby enabling movement of a movable device inside the automobile, such as a seat body 5 or a console box body, relative to the vehicle floor, for example, forward / backward or left / right movement.
[0045] Here, the synchronous belt 33 in the belt transmission assembly 3 is wrapped around the drive wheel 31 and the pulley 32, and a soft connection is made between the drive wheel 31 and the pulley 32 via the synchronous belt 33. This not only reduces the noise of the seat body 5 moving against the vehicle floor, but also transmits the power transmission force of the drive wheel 31 to the pulley 32 and the first slide rail 21 via the synchronous belt 33, reducing assembly tolerances and thereby making the sliding motion of the first slide rail 21 relative to the second slide rail 22 smoother. By providing at least a portion of the synchronous belt 33 inside the second slide rail 22, it is possible to prevent dirt inside the vehicle from entering other components of the belt transmission assembly 3 via the synchronous belt 33, reducing the possibility of transmission failure in the belt transmission assembly 3, and also not affecting the assembly work between the second slide rail 22 and the vehicle floor, and between the first slide rail 21 and the seat body 5.
[0046] Since the area of the upper slide rail and the seat body 5 or console box body becomes the legroom for rear-seat occupants, the usable space of the seat body 5 is very limited. In related technologies, the drive motor and transmission structure are usually located below the seat body 5, thereby reducing the legroom for rear-seat occupants in the seat body 5. In the present invention, the central axes of the drive wheel 31 and pulley 32 are both provided along the vertical direction, so that the synchronous belt extends and reciprocates in the horizontal plane, and at least a portion of the synchronous belt 33 is provided within the second slide rail 22. Therefore, the entire belt transmission assembly 3 (including the drive wheel 31, pulley 32, and synchronous belt) is basically located in an area lower than the horizontal height of the second slide rail 22. Accordingly, the drive unit for driving the belt transmission assembly 3 is also located in a low position, so as to not occupy the area below the seat body 5 or console box body, the space is not only secured for rear-seat occupants, but the space is also reduced, and the arrangement and assembly of the belt transmission assembly 3 and drive unit 1 are made more convenient.
[0047] In one embodiment of the present invention, as shown in conjunction with Figures 1 and 2, the second slide rail 22 includes a slide rail body 221 and a pulley fixing member 222, the pulley fixing member 222 is provided on the side surface of the slide rail body 221, and at least a portion of the belt drive assembly 3 is provided on the pulley fixing member 222.
[0048] Furthermore, the extension direction of the slide rail body 221 of the second slide rail 22 coincides with the X-axis direction in the coordinate system of Figure 1 and is also the length direction of the slide rail body 221, while the extension direction perpendicular to the slide rail body 221 coincides with the Y-axis direction in the coordinate system of Figure 1 and is also the width direction of the slide rail body 221.
[0049] The upper slide rail and the seat body 5 or console box body area constitute the legroom for rear-seat occupants. In related technologies, the drive motor and transmission structure are usually located below the seat body 5, thereby reducing the legroom for rear-seat occupants in the seat body 5. However, the area surrounding the lower slide rail is usually made of foam or carpet. Therefore, in this embodiment, the pulley fixing member 222 is connected to the slide rail body 221. Here, the pulley fixing member 222 can be provided on the widthwise side of the slide rail body 221, thereby increasing the overall width area of the second slide rail 22. This corresponds to the fact that at least some of the structures in the belt transmission assembly 3 are attached to the pulley fixing member 222, making full use of the internal space of the second slide rail 22, in other words, not occupying the space of the seat body 5 or console box body, securing more legroom for the rear seat occupants of the seat body 5 or console box body, improving the user experience, and the drive unit 1 can be attached to the internal space of the second slide rail 22, and the internal space of the second slide rail 22 provides convenience for the assembly work of the drive unit 1 and the entire belt transmission assembly 3.
[0050] The drive wheel 31 and pulley 32 can be installed in the area below the pulley fixing member 222. In other words, the pulley fixing member 222 provides mounting space for the drive wheel 31 and pulley 32, not only safely protecting the drive wheel 31 and pulley 32, but also reducing the number of foreign objects that can enter the drive wheel 31 and pulley 32, thus avoiding structural failure caused by foreign objects affecting the normal transmission operation of the belt drive assembly 3.
[0051] The statement that the pulley fixing member 222 is provided on the side surface of the slide rail body 221 means that the pulley fixing member 222 may be provided on one side of the slide rail body 221, or it may be provided around the outside of the slide rail body 221, and there may or may not be a direct connection between the pulley fixing member 222 and the slide rail body 221.
[0052] Furthermore, in related technologies, the synchronous belt 33 has an end belt structure, and the body of the synchronous belt is made of a material that softens easily at high temperatures, such as rubber. Therefore, the synchronous belt is less likely to clamp at high temperatures, and there is a possibility that it may come off at the end belt portion during power transmission. In this embodiment, the synchronous belt 33 has a closed-end structure, and the reliability of the closed-end structure synchronous belt 33 is higher than that of the end belt synchronous belt 33, improving the reliability of the synchronous belt, especially at high temperatures.
[0053] In one embodiment of the present invention, as shown in conjunction with Figure 2, the pulley fixing member 222 includes a pulley mounting seat 2221 and a protective cover 2222, the pulley mounting seat 2221 is provided at the end of the protective cover 2222 along the extending direction of the second slide rail 22, the pulley 32 is attached to the pulley mounting seat 2221, and the drive wheel 31 and the pulley 32 are provided on the protective cover 2222.
[0054] The pulley mounting seats 2221 are provided at the ends of the protective cover 2222 along the extending direction (length direction) of the second slide rail 22. There is at least one pulley mounting seat 2221, which is used to mount components of the belt transmission assembly 3, such as pulleys 32 and tension pulleys. Here, the pulleys 32, which are attached to both ends of the pulley fixing member 222 in the extending direction, are located on both sides of the slide rail body 221 in the extending direction. In other words, in this embodiment, the pulleys 32 are directly attached to the pulley mounting seats 2221 and are not attached inside or to the ends of the slide rail body 221. This does not occupy the internal space of the slide rail body 221, which increases the movement stroke of the first slide rail 21 relative to the second slide rail 22, increases the front-to-back or left-to-right adjustment stroke of the seat body 5 relative to the vehicle floor, and can be applied to the needs of customers with different body types. The drive wheel 31 and pulley 32 are located at the bottom of the protective cover 2222, thereby shielding and protecting the drive wheel 31 and pulley 32 from the protective cover 2222.
[0055] Specifically, at least one pulley 32 can be mounted on one pulley mounting seat 2221, and the number of pulleys 32 mounted on the pulley mounting seat 2221 can be flexibly set based on factors such as different vehicle models and different customers, and is not particularly limited here. The protective cover 2222 may be a plate-like structure (flat plate, arc-shaped plate, etc.), in which case the drive unit 1 and the belt transmission assembly 3 may be provided in the lower or upper region of the plate-like structure, or it may be a housing structure, in which case the drive unit 1 and the belt transmission assembly 3 may be provided in the internal space of the housing structure, and therefore the structure or shape of the protective cover 2222 is not particularly limited here either.
[0056] In one embodiment of the present invention, as shown in conjunction with Figures 3 to 8, the second slide rail 22 includes at least two slide rail bodies 221, the at least two slide rail bodies 221 are spaced apart along a direction perpendicular to their own extending direction, there is one drive unit 1 and one synchronous belt 33, the pulley fixing member 222 has a cavity, and at least a portion of the synchronous belt 33, the drive unit 1 and the drive wheel 31 are provided within the cavity.
[0057] Furthermore, there are at least two slide rail bodies 221, and at this time, there are also at least two first slide rails 21 corresponding to the slide rail bodies 221, and the number of slide rail bodies 221 matches the number of first slide rails 21.
[0058] The pulley fixing member 222, for example, the protective cover 2222, has a cavity, and so at least a portion of the synchronous belt 33, the drive unit 1, and the drive wheel 31 are all mounted within the cavity, thereby shielding and protecting the belt transmission assembly 3 via the pulley fixing member 222. In this embodiment, there is one drive unit 1 and one synchronous belt 33, that is, the operation of one drive unit 1 drives and rotates the drive wheel 31, the synchronous belt 33 moves and rotates the multiple pulleys 32, the synchronous belt 33 is connected to the first slide rail 21, thereby moving the first slide rail 21 relative to the second slide rail 22, in other words, one drive unit 1 can realize left-right or front-back movement of the seat body 5 or console box body relative to the vehicle floor, thereby effectively reducing the overall cost of the drive unit 1 and the belt transmission assembly 3, where the drive unit 1 may be a rotating electric machine.
[0059] Here, the X and Y axes of the coordinate system in Figures 3 to 8 indicate that the two slide rail bodies 221 in the embodiment can be arranged with a gap along the Y axis direction, and the extending direction of each second slide rail 22 may be parallel to the X axis direction, allowing the seat body 5 to move back and forth relative to the vehicle floor. However, the two slide rail bodies 221 are not limited to this arrangement only; for example, the two slide rail bodies 221 can be further spaced along the X axis direction, thereby allowing the seat body 5 to move left and right relative to the vehicle floor.
[0060] In one embodiment of the present invention, as shown in conjunction with Figure 3, the synchronization belt 33 is drilled into one of the slide rail bodies 221, and there are two pulleys 32, each of which is provided at both ends of the second slide rail 22.
[0061] The two pulleys 32 may be provided at both ends of the slide rail body 221, or they may be provided within the two pulley mounting seats 2221. The synchronous belt 33 is drilled into the slide rail body 221 and wrapped around the drive wheel 31, the retaining pulley 35, and the two pulleys 32. Here, the drive unit 1 is connected to the drive wheel 31, and by driving and rotating the drive wheel 31, the rotation of the drive wheel 31 moves the synchronous belt 33, which is transmitted on the pulleys 32, moving the first slide rail 21 and moving it linearly relative to the second slide rail 22, thereby adjusting the position of the seat body 5 with respect to the vehicle floor.
[0062] In Figure 3, the belt drive assembly 3 further includes a plurality of retaining pulleys 35, which are arranged around the circumferential direction of the drive wheel 31, and the retaining pulleys 35 and the drive wheel 31 are connected by contacting the outer and inner walls of the synchronous belt 33, respectively. This is used to press the synchronous belt 33 against the drive wheel 31, thereby preventing the synchronous belt 33 from detaching from the drive wheel 31 during transmission, and thereby improving the stability of the transmission of the synchronous belt 33 between the drive wheel 31 and the pulleys 32.
[0063] In one embodiment of the present invention, as shown in conjunction with Figures 4 and 5, the belt drive assembly 3 further includes a tension pulley 34, the two tension pulleys 34 being provided at both ends of the second slide rail, the two pulleys 32 being provided at both ends of the second slide rail 22, and the tension pulley 34 being provided on one side of the pulley 32.
[0064] Furthermore, the two pulleys 32 are each provided at both ends of the second slide rail 22, thereby providing support for the mounting and transmission of the synchronous belt 33 via the two pulleys 32, and the two tension pulleys 34 are each provided at both ends of the second slide rail 22, and the tension pulleys 34 are located on one side of the pulley 32, thereby adjusting the tension of the synchronous belt 33 by the two tension pulleys 34, and ensuring consistency of the tension of the synchronous belt corresponding to the two second slide rails 22 during the assembly stage, thereby ensuring the synchronization and smoothness of the sliding of the first slide rail 21 relative to the second slide rail 22.
[0065] Specifically, the tension pulley 34 may be a ring body with external teeth on its circumferential outer wall and for tensioning the synchronous belt 33, and the pulley may be a ring body with a smooth circumferential outer wall, or a ring body with external teeth on its circumferential outer wall.
[0066] In one embodiment of the present invention, as shown in conjunction with Figures 4 and 6, a portion of the synchronous belt 33 is drilled within the slide rail body 221, the other portion of the synchronous belt 33 is drilled within the pulley fixing member 222, or at least a portion of the synchronous belt 33 is provided within the pulley fixing member 222.
[0067] In Figure 4, the two pulleys 32 are mounted on opposite sides of the slide rail body 221 and are each mounted within the pulley mounting seats 2221 of the pulley fixing member 222. At this time, a portion of the synchronization belt 33 is drilled into the slide rail body 221, and the other portion of the synchronization belt 33 is located outside the slide rail body 221 but inside the pulley fixing member 222. Thus, the synchronization belt 33 and the pulleys 32 are jointly shielded and protected by the slide rail body 221 and the pulley fixing member 222. The synchronization belt 33 may pass through from the center of the slide rail body 221, or from one side of the center of the slide rail body 221, and is not particularly limited here.
[0068] As shown in conjunction with Figure 7, the number of slide rail bodies 221 in the second slide rail 22 may be multiple, and the synchronization belt 33 is drilled into one of the slide rail bodies 221. For example, in Figure 3, there are three slide rail bodies 221, and this allows the synchronization of the first slide rail 21 sliding relative to the second slide rail 22 to be achieved by a single synchronization belt 33.
[0069] In Figure 6, the pulleys 32 and tension pulleys 34 provided on both sides of the second slide rail 22 are both mounted within the corresponding pulley mounting seats 2221, and the synchronous belt 33 can pass through from inside the protective cover 2222 of the pulley fixing member 222. In other words, the synchronous belt 33 does not directly pass through from inside the slide rail body 221, thereby satisfying the requirement that the synchronous belt 33 move the first slide rail 21 and move it relative to the second slide rail 22.
[0070] In one embodiment of the present invention, as shown in conjunction with Figure 5, the pulley 32 and the drive wheel 31 are provided at both ends of the second slide rail 22, a portion of the synchronous belt 33 is drilled into the slide rail body 221, and the synchronous belt 33 is fitted onto the drive wheel 31 and the pulley 32.
[0071] Furthermore, by providing the pulley 32 and drive wheel 31 at opposite ends of the second slide rail 22, the drive wheel 31 acts as a pulley 32, not only supporting the synchronous belt 33 but also moving and transmitting the synchronous belt 33 under the driving action of the drive unit 1. This reduces the number of pulleys 32, thereby lowering the difficulty of assembling the belt transmission assembly 3 and the probability of failure.
[0072] In one embodiment of the present invention, as shown in conjunction with Figure 8, the belt drive assembly 3 further includes tension pulleys 34 and retaining pulleys 35, the two pulleys 32 each provided at one end of the two second slide rails 22, the plurality of tension pulleys 34 each provided at the other end of the two second slide rails 22, the retaining pulleys 35 and the drive wheels 31 provided in close contact with the outer and inner walls of the synchronous belt 33 and used to press the synchronous belt 33 against the drive wheels 31, the synchronous belt 33 is wrapped around the pulleys 32, the tension pulleys 34 and the drive wheels 31, and different portions of the synchronous belt 33 are drilled into the two slide rail bodies 221.
[0073] The two pulleys 32 can be provided at one end, for example, the rear end, of the two slide rail bodies 221, and the multiple tension pulleys 34 are each attached to the other end, for example, the front end, of the two second slide rails 22. In this case, the tension pulleys 34 not only support the pulleys 32 with respect to the synchronization belt 33, but can also tension the synchronization belt 33, and the retaining pulley 35 is used to press the synchronization belt 33 against the drive wheel 31 and prevent the synchronization belt 33 from coming off the drive wheel 31.
[0074] In this embodiment, there is one synchronization belt 33, which is drilled through two slide rail bodies 221 and wrapped around each pulley 32, tension pulley 34 and drive wheel 31. The drive unit 1 operates to drive the drive wheel 31 and rotate it, the drive wheel 31 transmits the synchronization belt 33, and the connecting member 4 is used to connect the synchronization belt 33 and the first slide rail 21. At this time, the one synchronization belt 33 that passes through the two second slide rails 22 simultaneously is connected to the two first slide rails 22 via the two connecting members 4. The first slide rail 21 can be connected to the slide rail 21, thereby moving the first slide rail 21 relative to the second slide rail 22 by the transmission of a single synchronization belt 33, thereby not only enabling positional adjustment of the seat body 5 relative to the vehicle floor, such as forward / backward or left / right movement, but also ensuring that the direction and speed of movement are the same when different parts of the synchronization belt 33 pass through the two second slide rails 22, thereby ensuring the synchronization of the movement of the two first slide rails 21 relative to the second slide rails 22 and making the positional adjustment operation of the seat body 5 more stable.
[0075] In one embodiment of the present invention, as shown in conjunction with Figures 9 to 16, the electric guide rail device includes two belt drive assemblies 3, the second slide rail 22 includes at least two slide rail bodies 221, the at least two slide rail bodies 221 are spaced apart along a direction perpendicular to their own extending direction, and the synchronous belts 33 of the two belt drive assemblies 3 are each drilled into the two slide rail bodies 221.
[0076] Furthermore, there are at least two slide rail bodies 221, and there may be two belt transmission assemblies 3. The synchronous belt 33 is drilled into the corresponding second slide rail 22, thereby driving the drive wheel 31 to rotate via the drive unit 1. The drive wheel 31 moves the two synchronous belts 33 simultaneously, causing the two first slide rails 21 to move synchronously with respect to the two slide rail bodies 221. This not only enables positional adjustment of the seat body 5 relative to the vehicle floor, such as forward / backward or left / right movement, but also stabilizes the positional adjustment operation of the seat body 5.
[0077] In one embodiment of the present invention, as shown in conjunction with Figure 9, the electric guide rail device includes two drive units 1, each drive unit 1 connected to a drive wheel 31 in each belt drive assembly 3, the belt drive assembly 3 further including a plurality of retaining pulleys 35, some of which are provided around the circumferential direction of one drive wheel 31, and the other number of which are provided around the circumferential direction of the other drive wheel 31.
[0078] Furthermore, the two drive units 1 each drive and operate the corresponding belt transmission assemblies 3, thereby moving the two first slide rails 21 connected to the synchronous belt 33 in the belt transmission assemblies 3 relative to the two slide rail bodies 221. This not only enables positional adjustment of the seat body 5 relative to the vehicle floor, such as forward / backward or left / right movement, but also stabilizes the positional adjustment operation of the seat body 5.
[0079] To enable the two drive units 1 to drive their corresponding belt drive assemblies 3 and operate them synchronously, the two drive units 1 can be controlled by a single automotive electronic control unit (ECU), ensuring the synchronization of their operation. Furthermore, retaining pulleys 35 are positioned circumferentially around the drive wheels 31 in each belt drive assembly 3. The retaining pulleys 35 and the drive wheels 31 contact the outer and inner walls of the synchronous belt 33, respectively. This causes the retaining pulleys 35 to tightly press the same synchronous belt 33 against the drive wheels 31, effectively preventing the synchronous belt 33 from detaching from the drive wheels 31.
[0080] In one embodiment of the present invention, as shown in conjunction with Figures 10 to 14, the electric guide rail device includes one drive unit 1, the synchronous belt 33 of the belt drive assembly 3 is drilled in the corresponding second slide rail 22, the drive unit 1 is connected to a drive wheel 31 in one of the belt drive assembly 3, one of the belt drive assembly 3 is transmitted to the other belt drive assembly 3 and is used to move and operate the other belt drive assembly 3.
[0081] Furthermore, one drive unit 1 can simultaneously drive and operate two belt drive assemblies 3, and each synchronous belt 33 is drilled within the corresponding second slide rail 22. Specifically, when the drive unit 1 is operated, it drives and rotates the drive wheel 31 of one of the belt drive assemblies 3, and the two belt drive assemblies 3 are connected in a transmission relationship. As a result, when one belt drive assembly 3 is operating, the other belt drive assembly 3 can be driven and transmitted simultaneously. This allows the drive unit 1 to not only adjust the position of the seat body 5 relative to the vehicle floor, for example, by moving it forward, backward, or left and right, but also to make the position adjustment operation of the seat body 5 more stable.
[0082] In one embodiment of the present invention, as shown in conjunction with Figure 10, the drive wheel 31 includes belt mounting portions and teeth that are sequentially connected along its axial direction, the synchronous belt 33 is fitted onto the belt mounting portions, and the teeth of one belt drive assembly 3 mesh with the teeth of the other belt drive assembly 3.
[0083] There are two drive wheels 31, and both drive wheels 31 include a belt mounting portion and a tooth portion. The belt mounting portion and the tooth portion are integrally molded along the central axis of the drive wheel 31, thereby improving the mechanical strength of the drive wheel 31 and extending its service life accordingly. One synchronous belt 33 is fitted to the belt mounting portion of one drive wheel 31 and a pulley 32 attached to the end of one second slide rail 22. The tooth portion of one drive wheel 31 meshes with the tooth portion of the other drive wheel 31, and the other synchronous belt 33 is connected to the other The belt is fitted to the belt mounting portion of one drive wheel 31 and to the pulley 32 attached to the end of the other second slide rail 22. In other words, the mutual meshing of the drive wheels 31 in the two belt transmission assemblies 3 drives one drive wheel 31 to rotate under the action of the drive unit 1, and synchronously transmits the synchronous belt 33 corresponding to the other drive wheel 31 that meshes with the said drive wheel 31. This not only enables positional adjustment of the seat body 5 relative to the vehicle floor, such as forward / backward or left / right movement, but also stabilizes the positional adjustment operation of the seat body 5.
[0084] In one embodiment of the present invention, as shown in conjunction with Figure 11, the belt drive assembly 3 further includes a retaining pulley 35 and a transmission gear 36, the drive wheel 31 includes belt mounting portions and teeth sequentially connected along its axial direction, the synchronous belt 33 is wrapped around the pulley 32, the belt mounting portions of the drive wheel 31 and the retaining pulley 35, and the teeth of one belt drive assembly 3 mesh with the teeth of the other belt drive assembly 3 via the transmission gear 36.
[0085] Furthermore, there are two drive wheels 31 and at least one transmission gear 36. The teeth of one drive wheel 31 can mesh with the teeth of the other drive wheel 31 via at least one transmission gear 36. This is used to transmit the rotational action of one drive wheel 31 to the other drive wheel 31, thereby not only enabling the first slide rail 21 to move relative to the second slide rail 22, but also stabilizing the positional adjustment operation of the seat body 5 relative to the vehicle floor.
[0086] As shown in conjunction with Figure 11, there is one drive gear 36, and the drive wheels 31 include a fourth drive wheel 314, a fifth drive wheel 315, and a sixth drive wheel 316. Here, the drive unit 1 is connected to the fourth drive wheel 314, and the right side of the fourth drive wheel 314 may be meshed with the sixth drive wheel 316, the sixth drive wheel 316 is driven by the right-side synchronous belt 33, and the left side of the fourth drive wheel 314 may be meshed with the fifth drive wheel 315 via the drive gear 36, the fifth drive wheel 315 is on the left side The drive unit 1 is connected to the synchronous belt 33, thereby driving the fourth drive wheel 314 to rotate. At this time, the fourth drive wheel 314 transmits its rotational force to the right synchronous belt 33 via the sixth drive wheel 316, and the fourth drive wheel 314 transmits its rotational force to the left synchronous belt 33 via the transmission gear 36 and the fifth drive wheel 315, thereby achieving synchronous sliding of the first slide rail relative to the two slide rail bodies of the second slide rail. In this embodiment, the drive unit 1 can be driven to any of the drive wheels or the transmission gear 36.
[0087] As shown in conjunction with Figure 12, the number of transmission gears 36 is even, for example, four, and the drive wheel 31 includes a fourth drive wheel 314 and a sixth drive wheel 316. Here, the drive unit 1 is connected to the fourth drive wheel 314, and the right side of the fourth drive wheel 314 may be meshed with the sixth drive wheel 316 via four transmission gears 36. The sixth drive wheel 316 is transmitted to the right-side synchronous belt 33, and the left side of the fourth drive wheel 314 is transmitted to the left-side synchronous belt 33. Thus, the drive unit 1 drives and rotates the fourth drive wheel 314. At this time, the fourth drive wheel 314 transmits its rotational force to the right-side synchronous belt 33 via the four transmission gears 36 and the sixth drive wheel 316, and the fourth drive wheel 314 transmits its rotational force to the left-side synchronous belt 33, thereby achieving synchronous sliding of the first slide rail relative to the two slide rail bodies of the second slide rail. In this embodiment, the drive unit 1 can be driven and connected to any of the drive wheels or any of the transmission gears 36.
[0088] In one embodiment of the present invention, as shown in conjunction with Figure 13, one of the belt drive assemblies 3 further includes a transmission belt 37, a first drive wheel 311, and a second drive wheel 312, and the other belt drive assemblies 3 further includes a third drive wheel 313, the drive unit 1 is connected to the second drive wheel 312, the second drive wheel 312 is meshed with the first drive wheel 311, the second drive wheel 312 is transmitted to the third drive wheel 313 via the transmission belt 37, and the first drive wheel 311 and the third drive wheel (313) are each connected to the synchronous belt 33 of the two belt drive assemblies 3.
[0089] In one of the belt drive assemblies 3, there are two drive wheels 31, which are designated as the first drive wheel 311 and the second drive wheel 312, respectively, while in the other belt drive assemblies 3, there is one drive wheel 31, which is defined as the third drive wheel 313.
[0090] Specifically, as shown in conjunction with Figure 13, the drive wheel 31 is connected to the second drive wheel 312, the second drive wheel 312 is meshed with the left first drive wheel 311, the left synchronous belt 33 is transmitted to the first drive wheel 311 and the left pulley 32, the second drive wheel 312 is connected to the third drive wheel 313 via the transmission belt 37, and the right synchronous belt 33 is transmitted to the third drive wheel 313 and the right pulley 32. Thus, the second drive wheel 312 can not only move and rotate the first drive wheel 311 under the driving action of the drive unit 1, but also transmit the transmission belt The belt 37 allows the third drive wheel 313 to move and rotate, and the first drive wheel 311 and the third drive wheel 313 move and rotate the corresponding synchronous belt 33, respectively, thereby enabling the first slide rail 21 to move relative to the second slide rail 22. Furthermore, since the second drive wheel 312 and the third drive wheel 313 are connected via the transmission belt 37, the noise of the two belt transmission assemblies 3 during operation can be reduced, and the positional adjustment operation of the seat body 5 relative to the vehicle floor can be made more stable.
[0091] In one embodiment of the present invention, as shown in conjunction with Figure 14, the inner and outer walls of the synchronous belt 33 have internal teeth and external teeth, respectively, the internal teeth of the synchronous belt 33 are fitted onto the pulley 32 and the drive wheel 31, the synchronous belts 33 in the two belt drive assemblies 3 are meshed and connected via the external teeth, and the two drive wheels 31 are arranged opposite each other and used to press the meshing portions of the two synchronous belts 33 together.
[0092] The number of drive wheels 31 and synchronous belts 33 are both two, and the inner and outer walls of the two synchronous belts 33 both have friction surfaces. The inner and outer walls of the synchronous belts 33 are defined as internal teeth and external teeth, respectively. In other words, power is transmitted between the two synchronous belts 33 in the two belt drive assemblies 3 by the meshing of their respective external teeth. The two drive wheels 31 are provided adjacent to each other and are used to make the external tooth meshing of the two synchronous belts 33 tighter. Each synchronous belt 33 is connected to the corresponding first slide rail 21 via a connecting member 4.
[0093] Here, the number of pulley fixing members 222 may be one, that is, one pulley fixing member 222 is connected to each of the two slide rail bodies 221, or the number of pulley fixing members 222 may be two, that is, the pulley fixing members 222 are connected to the corresponding slide rail bodies 221.
[0094] Specifically, the drive unit 1 operates to drive and rotate one of its drive wheels 31. At this time, the drive wheel 31 not only moves the corresponding synchronous belt 33 to transmit power, but also moves the other synchronous belt 33, resulting in synchronous transmission. As a result, the two first slide rails 21 connected to the synchronous belt 33 can move synchronously with respect to the second slide rail 22. This not only enables positional adjustment of the seat body 5 relative to the vehicle floor, such as forward / backward or left / right movement, but also makes the positional adjustment operation of the seat body 5 more stable.
[0095] In one embodiment of the present invention, as shown in conjunction with Figure 15, the belt drive assembly 3 further includes a retaining pulley 35 and one of the drive wheels 31, the drive wheel 31 includes two belt mounting sections sequentially connected along its axial direction, the synchronous belts 33 of the two belt drive assemblies 3 are fitted onto the two belt mounting sections and the pulley 32, respectively, the retaining pulley 35 and the drive wheel 31 are connected to the outer and inner walls of the synchronous belts 33, respectively, and are used to press the two synchronous belts 33 against each of the belt mounting sections.
[0096] The number of drive unit 1 and drive wheel 31 is one, and the number of synchronous belts 33 is two. In this case, the inner walls of the two synchronous belts 33 have internal teeth, and the outer walls of the synchronous belts 33 may be smooth or may have external teeth. The drive wheel 31 has two belt mounting portions, each used to wrap around one synchronous belt 33. There may be at least one retaining pulley 35, which is provided around the circumferential direction of the drive wheel 31 and is used to press the two synchronous belts 33 against each of the belt mounting portions of the drive wheel 31.
[0097] Specifically, the drive unit 1 operates to drive the drive wheel 31 and rotate it, and at this time the drive wheel 31 can move the two synchronous belts 33 and transmit power synchronously. As a result, the two first slide rails 21 connected to the two synchronous belts 33 can move synchronously with respect to the second slide rail 22, which not only enables positional adjustment of the seat body 5 relative to the vehicle floor, such as forward / backward or left / right movement, but also makes the positional adjustment operation of the seat body 5 more stable.
[0098] In one embodiment of the present invention, as shown in conjunction with Figure 16, the belt drive assembly 3 further includes a first retaining pulley 351, a second retaining pulley 352, and a third retaining pulley 353, the synchronous belt 33 having internal and external teeth, the internal teeth of one of the synchronous belts 33 fitted to one of the pulleys 32 and the first retaining pulley 351, the internal teeth of the other synchronous belt 33 fitted to the other pulley 32, the second retaining pulley 352, the third retaining pulley 353 and the drive wheel 31, the third retaining pulley 353 is provided on one side of the drive wheel 31 and connected to the external teeth of the other synchronous belt 33, and is used to press the other synchronous belt 33 against the drive wheel 31, the two synchronous belts 33 are meshed and connected via the external teeth, The first retaining pulley 351 and the second retaining pulley 352 are provided between the slide rail bodies 221 of the two second slide rails 22, and the first retaining pulley 351 is provided on one side of the second retaining pulley 352, and are used to press the meshing points of the two synchronous belts 33 together.
[0099] The number of drive unit 1 and drive wheel 31 is one, and the number of synchronous belts 33 is two, with internal teeth and external teeth provided on the inner and outer walls of the two synchronous belts 33, respectively. The first retaining pulley 351, the second retaining pulley 352, and the third retaining pulley 353 are each mounted in different positions. For example, there is at least one first retaining pulley 351, which may be located to the left of the center position of the two slide rail bodies 221, and there is at least one second retaining pulley 352, which may be located to the right of the center position of the two slide rail bodies 221. The first retaining pulley 351 and the second retaining pulley 352 are located opposite each other and are used to tightly mesh the two synchronous belts 33. The third retaining pulley 353 is located around the drive wheel 31 and is used to press the synchronous belt 33, which is wrapped around the drive wheel 31 and pulley 32, against the drive wheel 31, preventing the synchronous belt 33 from coming off the drive wheel 31.
[0100] Specifically, the drive unit 1 operates to drive the drive wheel 31 and rotate it, and at this time the drive wheel 31 can move one of the synchronous belts 33 and transmit power, and subsequently the synchronous belt 33 moves the other synchronous belt 33 and transmits power. In other words, the transmission speed of the two synchronous belts 33 is the same, and as a result the two first slide rails 21 connected to the two synchronous belts 33 can move synchronously with respect to the second slide rail 22, which not only enables position adjustment of the seat body 5 or console box body relative to the vehicle floor, such as forward / backward or left / right movement, but also makes the position adjustment operation of the seat body 5 or console box body more stable.
[0101] In one embodiment of the present invention, as shown in conjunction with Figures 17 and 18, the belt drive assembly 3 further includes an elastic tension member 38, which is provided below the pulley fixing member 222 and located on one side of the pulley 32, and is connected to one of the pulleys 32 and is used during the assembly stage to adjust the position of the pulley 32 and to match the tension of the two synchronous belts 33.
[0102] Furthermore, the elastic tension member 38 is provided below the pulley fixing member 222 and located on one side of the pulley 32, thereby safely protecting the elastic tension member 38 and the pulley 32 by the pulley fixing member 222. Here, the extending direction of the elastic tension member 38 coincides with the alignment direction of the two pulleys 32, so that when adjusting the tension of the synchronous belt 33 during the assembly stage, the position of the pulleys 32 can be adjusted to a predetermined position effectively and quickly, adjusting the tension of the two synchronous belts 33 to a synchronized state, thereby ensuring the sliding synchronization of the two upper and lower slide rails.
[0103] Normally, mismatches exist in the assembly tolerances between the two pulleys 32 and the tensions of the two synchronous belts 33 during the assembly stage, which can cause the synchronous belt 33 to slip and potentially affect the electric adjustment of the position of the seat body 5 or the console box body. In this embodiment, an elastic tension member 38 is provided on one side of the pulley 32, with one end of the elastic tension member 38 fixed and the other end connected to one of the pulleys 32. This allows the position of the pulley 32 to be adjusted by elastic deformation, the tension of the synchronous belt 33 to be adjusted, and the position of the pulley 32 to be fixed after the synchronous belt 33 has been tensioned. Furthermore, it is ensured that the tensions of the synchronous belts 33 in the two slide rail bodies 221 are the same, thereby making the position adjustment of the seat body 5 or the console box body relative to the vehicle floor more stable.
[0104] In one embodiment of the present invention, as shown in conjunction with Figure 17, when the elastic tension member 38 is a compression spring, the elastic tension member 38 is provided between the two pulleys 32 and adjacent to one of the pulleys 32, and the elasticity is restored by the compression spring, so that the pulley 32 located on one side of the compression spring can be moved away from the other pulley 32 by the operator's operation, in other words, the distance between the two pulleys 32 is increased, thereby effectively adjusting the tension of the synchronous belt 33.
[0105] In Figure 17, the dashed lines on the compression spring and pulley 32 represent the position before adjusting the tension operation of the synchronous belt 33, while the solid lines on the compression spring and pulley 32 represent the position after adjusting the tension operation of the synchronous belt 33.
[0106] As shown in conjunction with Figure 18, when the elastic tension member 38 is a tension spring, the elastic tension member 38 is provided on the side away from the other pulley 32 opposite to one of the pulleys 32. Due to the tensile force of the tension spring, the pulley 32 located on one side of the tension spring can be moved away from the other pulley 32 by the operator's operation. In other words, the distance between the two pulleys 32 is increased, thereby adjusting the tension of the synchronous belt 33.
[0107] In Figure 18, the dashed lines on the compression spring and pulley 32 represent the position before adjusting the tension operation of the synchronous belt 33, while the solid lines on the compression spring and pulley 32 represent the position after adjusting the tension operation of the synchronous belt 33.
[0108] In one embodiment of the present invention, as shown in conjunction with Figures 19, 20, and 21, the first slide rail 21 includes at least two slide rail members, the at least two slide rail members are spaced apart along a direction perpendicular to their own extending direction, the slide rail members include a movable member 212 and a first guide rail portion 211, the first guide rail portion 211 is provided on a side of the first slide rail 21 perpendicular to its extending direction, and the two sets of movable members 212 are provided along a direction perpendicular to the extending direction of the first slide rail 21 The slide rail body 221 includes a second guide rail section 2211, the first guide rail section 211 is fitted into the second guide rail section 2211, each of the two sets of the moving members 212 is located within the second guide rail section 2211 and is used to move relative to the second guide rail section 2211, and the synchronization belt 33 is located between the moving members 212 and the second guide rail section 2211.
[0109] Each slide rail member includes two sets of moving members 212. For example, the left slide rail member includes two sets of moving members 212. If each set of moving members includes two moving members 212, one at the front and one at the rear, the two moving members 212 are attached to both ends of the extending direction of the first guide rail section 211, thereby increasing the support load of the second slide rail 22 on the first slide rail 21. The number of slide rail members in the first slide rail 21 matches the number of slide rail bodies 221 in the second slide rail 22. The synchronous belt 33 is located between the moving members 212 and the second guide rail section 2211. In other words, the synchronous belt 33 is installed inside the slide rail body 221, thereby shielding and protecting the synchronous belt 33 from the slide rail body 221 and preventing foreign matter from entering other members of the belt transmission assembly 3 via the synchronous belt 33 and affecting the transmission operation.
[0110] Since the first guide rail section 211 and the moving member 212 are provided within their respective second guide rail sections 2211, the first guide rail section 211 not only acts as a guide for the movement of the moving member 212 within the second guide rail section 2211, but also prevents the first guide rail section 211 from detaching from the second guide rail section 2211, thereby improving the stability of the movement of the first guide rail section 211 relative to the second guide rail section 2211. The moving member 212 and the first guide rail section 211 can be connected to a single first slide rail 21, thereby providing convenience in the assembly work of the first slide rail 21 and the second slide rail 22.
[0111] Specifically, the moving member 212 may be a roller structure or a slide rail structure, and any moving member 212 that can move stably on the second slide rail 22 is applicable to this technical solution and is not particularly limited here.
[0112] In one embodiment of the present invention, as shown in conjunction with Figure 20, the slide rail body 221 further includes a support portion 2212, the support portion 2212 is provided between two of the second guide rail portions 2211, and the top surface of the support portion 2212 is lower than the bottom surface of the second guide rail portion 2211.
[0113] The slide rail body 221 may include two second guide rail sections 2211, and a support section 2212 is provided between the two second guide rail sections 2211. The two second guide rail sections 2211 are connected to form a single slide rail body 221. Here, the support section 2212 and the two second guide rail sections 2211 may be integrally molded, thereby improving the mechanical strength of the slide rail body 221. The top surface of the support section 2212 is lower than the bottom surface of the second guide rail section 2211, and the bottom of the support section 2212 can be provided on the vehicle floor. The moving member 212 moves within the second guide rail section 2211. In other words, the bottom surface of the moving member 212 is similarly higher than the top surface of the support section 2212. This effectively prevents foreign objects on the vehicle floor from entering the moving member 212 from the end of the slide rail body 221 and causing jams, thereby reducing the failure rate of the electric guide rail device.
[0114] In one embodiment of the present invention, as shown in conjunction with Figures 20 and 21, the electric guide rail device further includes a connecting member 4, the connecting member 4 includes a first connecting seat 41 and a second connecting seat 42, the first connecting seat 41 is connected to the first guide rail portion 211 of the first slide rail 21, the first connecting seat 41 is connected to the second connecting seat 42 and mounting grooves are provided in the first connecting seat 41 and / or the second connecting seat 42, and a portion of the synchronization belt 33 is drilled in the mounting grooves, and the first connecting seat 41 is connected to the second connecting seat 42.
[0115] Furthermore, when the first connecting seat 41 is connected to the first guide rail section 211 and the first connecting seat 41 is connected to the second connecting seat 42, a mounting groove can be provided in the connecting member 4, making it easier for the synchronous belt 33 to pass through from within the mounting groove. Since the first connecting seat 41 is connected to the first guide rail section 211 and the connecting member 4 is connected to the synchronous belt 33, the connecting member 4 connects the local structure of the synchronous belt 33 to the first slide rail 21, and when the synchronous belt 33 is transmitted, the first slide rail 21 can be moved relative to the second slide rail 22.
[0116] As shown in conjunction with Figure 21, the first connecting seat 41 and the second connecting seat 42 can employ a removable connection method, and the connecting member 4 connects the synchronization belt 33 and the first slide rail 21 in an integrated structure, making it easy for the synchronization belt 33 to move the first slide rail 21 relative to the second slide rail 22, as well as providing convenience for repairing the synchronization belt 33. Specifically, the first connecting seat 41 and the second connecting seat 42 can be connected using a bolt system.
[0117] As shown in conjunction with Figure 22, the first connecting seat 41 and the second connecting seat 42 may be integrally molded structures, in which case a mounting groove is provided in the first connecting seat 41, or a mounting groove is provided in the second connecting seat 42, or a mounting groove is provided jointly in the first connecting seat 41 and the second connecting seat 42.
[0118] As shown in conjunction with Figure 19, another embodiment of the present invention provides a seat assembly comprising an electric guide rail device as described above, and further comprising a seat body 5, the seat body 5 being connected to a first slide rail 21 of the electric guide rail device, the extending directions of the first slide rail 21 and the second slide rail 22 being parallel to the direction of movement of the seat body 5.
[0119] Furthermore, the extension direction of the first slide rail 21 and the second slide rail 22 being parallel to the movement direction of the seat body 5 means that if the extension direction of the first slide rail 21 and the second slide rail 22 coincides with the longitudinal direction of the automobile, the seat body 5 can adjust the position of the first slide rail 21 relative to the second slide rail 22 on the vehicle floor in the longitudinal direction (travel direction), and if the extension direction of the first slide rail 21 and the second slide rail 22 coincides with the lateral direction of the automobile, the seat body 5 can adjust the position of the first slide rail 21 relative to the second slide rail 22 on the vehicle floor in the lateral direction. The seat assembly has at least all the technical effects of the electric guide rail device, which will not be explained here.
[0120] Another embodiment of the present invention provides a center console box, comprising an electric guide rail device as described above, and further comprising a console box body, wherein the console box body is connected to a first slide rail 21 of the electric guide rail device, and the extending directions of the first slide rail 21 and the second slide rail 22 are parallel to the direction of movement of the console box body.
[0121] The center console box is a storage device located between the driver's seat and the passenger seat. It is generally situated in the space between the seat and the center console, providing additional storage space for small items such as wallets, mobile phones, and keys. The console box also functions as an armrest, providing additional comfortable support. The statement that the extending directions of the first slide rail 21 and the second slide rail 22 are parallel to the direction of movement of the console box body means that if the extending directions of the first slide rail 21 and the second slide rail 22 coincide with the longitudinal direction of the vehicle, the console box body can adjust the position of the first slide rail 21 relative to the second slide rail 22 on the vehicle floor in the longitudinal direction (travel direction). If the interior space of the vehicle is sufficiently large, the extending directions of the first slide rail 21 and the second slide rail 22 can coincide with the lateral direction of the vehicle, allowing the console box body to adjust the position of the first slide rail 21 relative to the second slide rail 22 on the vehicle floor in the lateral direction. The center console box has at least all the technical effects of an electric guide rail system, which will not be explained here.
[0122] Another embodiment of the present invention provides an automobile, which includes the seat assembly described in the above embodiments, or the center console box described in the above embodiments, or the electric guide rail device described in the above embodiments.
[0123] Furthermore, the automobile includes a vehicle floor, and the second slide rail 22 in the seat assembly may be provided on the vehicle floor. The automobile has at least all the technical effects of a seat assembly, a center console box, or an electric guide rail device, and is not specifically limited thereto.
[0124] Although the present invention has been disclosed as described above, the scope of protection of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and any such changes and modifications will fall within the scope of protection of the present invention. [Explanation of Symbols]
[0125] 1-Drive unit, 2-Slide rail assembly, 21-First slide rail, 211-First guide rail section, 212-Moving member, 22-Second slide rail, 221-Slide rail body, 2211-Second guide rail section, 2212-Support section, 222-Pulley fixing member, 2221-Pulley mounting seat, 2222-Protective cover, 3-Belt transmission assembly, 31-Drive wheel, 311-First drive wheel, 312-Second drive wheel 313-Third drive wheel, 314-Fourth drive wheel, 315-Fifth drive wheel, 316-Sixth drive wheel, 32-Pulley, 33-Synchronization belt, 34-Tension pulley, 35-Retaining pulley, 351-First retaining pulley, 352-Second retaining pulley, 353-Third retaining pulley, 36-Transmission gear, 37-Transmission belt, 38-Elastic tension member, 4-Connecting member, 41-First connecting seat, 42-Second connecting seat, 5-Seat body.
Claims
1. An electric guide rail device comprising a slide rail assembly (2), a drive unit (1), and a belt transmission assembly (3), wherein the slide rail assembly (2) includes a first slide rail (21) provided on a seat body (5) or console box body and a second slide rail (22) provided on the vehicle floor, and the first slide rail (21) and the second slide rail (22) are in a sliding fit, the belt transmission assembly (3) includes a drive wheel (31), a pulley (32), and a synchronous belt (33), at least a portion of the synchronous belt (33) is provided on the second slide rail (22), the synchronous belt (33) is wrapped around the drive wheel (31) and the pulley (32), the drive unit (1) is connected to the drive wheel (31) and used to drive and rotate the drive wheel (31), and the synchronous belt (33) is connected to the first slide rail (21), The central axes of the drive wheel (31) and the pulley (32) are both provided along the vertical direction. An electric guide rail device characterized by the following features.
2. The second slide rail (22) includes a slide rail body (221) and a pulley fixing member (222), the pulley fixing member (222) is provided on the side surface of the slide rail body (221), and at least a portion of the belt drive assembly (3) is provided on the pulley fixing member (222). The electric guide rail device according to feature 1.
3. The pulley fixing member (222) includes a pulley mounting seat (2221) and a protective cover (2222), the pulley mounting seat (2221) is provided at the end of the protective cover (2222) along the extending direction of the second slide rail (22), the pulley (32) is attached to the pulley mounting seat (2221), and the drive wheel (31) and the pulley (32) are provided on the protective cover (2222). The electric guide rail device according to feature 2.
4. The second slide rail (22) includes at least two slide rail bodies (221), the at least two slide rail bodies (221) are spaced apart along a direction perpendicular to their own extending direction, there is one drive unit (1) and one synchronous belt (33), the pulley fixing member (222) has a cavity, and at least a portion of the synchronous belt (33), the drive unit (1) and the drive wheel (31) are provided within the cavity. The electric guide rail device according to feature 2.
5. The synchronization belt (33) is drilled into the slide rail body (221), and there are two pulleys (32), each of which is provided at both ends of the second slide rail (22). The electric guide rail device according to feature 4.
6. The belt drive assembly (3) further includes a tension pulley (34), the two tension pulleys (34) each being provided at both ends of the second slide rail (22), the two pulleys (32) each being provided at both ends of the second slide rail (22), and the tension pulley (34) being provided on one side of the pulleys (32). The electric guide rail device according to feature 4.
7. A portion of the synchronization belt (33) is drilled within the slide rail body (221), and the other portion of the synchronization belt (33) is drilled within the pulley fixing member (222), or at least a portion of the synchronization belt (33) is provided within the pulley fixing member (222). The electric guide rail device according to feature 6.
8. The pulley (32) and the drive wheel (31) are provided at both ends of the second slide rail (22), a portion of the synchronous belt (33) is drilled into the slide rail body (221), and the synchronous belt (33) is fitted onto the drive wheel (31) and the pulley (32). The electric guide rail device according to feature 4.
9. The belt drive assembly (3) further includes a tension pulley (34) and a retaining pulley (35), the two pulleys (32) each being provided at one end of the two second slide rails (22), the multiple tension pulleys (34) each being provided at the other end of the two second slide rails (22), the retaining pulley (35) and the drive wheel (31) being provided in close contact with the outer and inner walls of the synchronous belt (33) and used to press the synchronous belt (33) against the drive wheel (31), the synchronous belt (33) being wrapped around the pulleys (32), the tension pulleys (34) and the drive wheel (31), and different portions of the synchronous belt (33) being drilled into the two slide rail bodies (221). The electric guide rail device according to feature 4.
10. The second slide rail (22) comprises two belt drive assemblies (3), the second slide rail (22) comprising at least two slide rail bodies (221), the at least two slide rail bodies (221) being spaced apart along a direction perpendicular to its own extending direction, and the synchronous belts (33) of the two belt drive assemblies (3) are each drilled within the two slide rail bodies (221). The electric guide rail device according to feature 2.
11. The system includes two drive units (1), each drive unit (1) connected to a drive wheel (31) in each belt drive assembly (3), the belt drive assembly (3) further includes a plurality of retaining pulleys (35), some of which are provided around the circumferential direction of one drive wheel (31), and other numbers of which are provided around the circumferential direction of the other drive wheel (31). The electric guide rail device according to feature 10.
12. Furthermore, the system includes one of the drive units (1), the synchronous belt (33) of the belt drive assembly (3) is drilled in the corresponding second slide rail (22), the drive unit (1) is connected to a drive wheel (31) in one of the belt drive assemblies (3), one of the belt drive assemblies (3) is transmitted to the other belt drive assembly (3), and is used to move and operate the other belt drive assembly (3). The electric guide rail device according to feature 10.
13. The drive wheel (31) includes belt mounting portions and teeth that are sequentially connected along its axial direction, the synchronous belt (33) is fitted onto the belt mounting portions, and the teeth of one belt drive assembly (3) mesh with the teeth of the other belt drive assembly (3). The electric guide rail device according to feature 12.
14. The belt drive assembly (3) further includes a retaining pulley (35) and a drive gear (36), the drive wheel (31) includes belt mounting portions and teeth sequentially connected along its axial direction, the synchronous belt (33) is wrapped around the pulley (32), the belt mounting portion of the drive wheel (31) and the retaining pulley (35), and the teeth of one belt drive assembly (3) mesh with the teeth of the other belt drive assembly (3) via the drive gear (36). The electric guide rail device according to feature 12.
15. One of the belt drive assemblies (3) further includes a transmission belt (37), a first drive wheel (311), and a second drive wheel (312), while the other belt drive assemblies (3) further includes a third drive wheel (313). The drive unit (1) is connected to the second drive wheel (312), the second drive wheel (312) is meshed with the first drive wheel (311), the second drive wheel (312) is transmitted to the third drive wheel (313) via the transmission belt (37), and the first drive wheel (311) and the third drive wheel (313) are each connected to the synchronous belt (33) of the two belt drive assemblies (3). The electric guide rail device according to feature 12.
16. The inner and outer walls of the synchronous belt (33) each have internal teeth and external teeth, respectively, the internal teeth of the synchronous belt (33) are fitted onto the pulley (32) and the drive wheel (31), the synchronous belts (33) in the two belt drive assemblies (3) are meshed and connected via the external teeth, the drive wheels (31) in the two belt drive assemblies (3) are arranged opposite each other and are used to press the meshing portions of the two synchronous belts (33) together. The electric guide rail device according to feature 12.
17. The belt drive assembly (3) further includes a retaining pulley (35) and one of the drive wheels (31), the drive wheel (31) includes two belt mounting sections sequentially connected along its axial direction, the synchronous belts (33) of the two belt drive assemblies (3) are fitted onto the two belt mounting sections and the pulley (32), the retaining pulley (35) and the drive wheel (31) are connected to the outer and inner walls of the synchronous belts (33), respectively, and are used to press each of the synchronous belts (33) against each of the belt mounting sections. The electric guide rail device according to feature 10.
18. The belt drive assembly (3) further includes a first retaining pulley (351), a second retaining pulley (352), and a third retaining pulley (353), wherein the synchronous belt (33) has internal teeth and external teeth, the internal teeth of one of the synchronous belts (33) are fitted onto one of the pulleys (32) and the first retaining pulley (351), the internal teeth of the other synchronous belt (33) are fitted onto the other pulley (32), the second retaining pulley (352), and the drive wheel (31), the third retaining pulley (353) is provided on one side of the drive wheel (31) and is connected to the external teeth of the other synchronous belt (33), and is used to press the other synchronous belt (33) against the drive wheel (31), and the two synchronous belts (33) are meshed and connected via the external teeth. The first retaining pulley (351) and the second retaining pulley (352) are provided between the slide rail bodies (221) of the two second slide rails (22), and the first retaining pulley (351) is provided on one side of the second retaining pulley (352), and are used to press the meshing points of the two synchronous belts (33). The electric guide rail device according to feature 10.
19. The belt drive assembly (3) further includes an elastic tension member (38), which is provided below the pulley fixing member (222) and located on one side of the pulley (32), and is connected to one of the pulleys (32). During the assembly stage, the elastic tension member (38) is used to adjust the position of the pulley (32) and to match the tension of the two synchronous belts (33). The electric guide rail device according to feature 2.
20. The first slide rail (21) includes at least two slide rail members, the at least two slide rail members are spaced apart along a direction perpendicular to its own extending direction, the slide rail members include a moving member (212) and a first guide rail portion (211), the first guide rail portion (211) is provided on a side of the first slide rail (21) perpendicular to its extending direction, the two sets of the moving members (212) are spaced apart along a direction perpendicular to the extending direction of the first slide rail (21), and the two sets of the moving Each moving member (212) is connected to the first guide rail section (211), the slide rail body (221) includes a second guide rail section (2211), the first guide rail section (211) is fitted into the second guide rail section (2211), each of the two sets of moving members (212) is located within the second guide rail section (2211) and used to move relative to the second guide rail section (2211), and the synchronization belt (33) is located between the moving members (212) and the second guide rail section (2211). The electric guide rail device according to feature 2.
21. The slide rail body (221) further includes a support portion (2212), the support portion (2212) is provided between the two second guide rail portions (2211), and the top surface of the support portion (2212) is lower than the bottom surface of the second guide rail portion (2211). The electric guide rail device according to claim 20.
22. Furthermore, it includes a connecting member (4), the connecting member (4) includes a first connecting seat (41) and a second connecting seat (42), the first connecting seat (41) is connected to the first guide rail portion (211) of the first slide rail (21), the first connecting seat (41) is connected to the second connecting seat (42), and mounting grooves are provided in the first connecting seat (41) and / or the second connecting seat (42), and a portion of the synchronization belt (33) is drilled in the mounting groove, and the first connecting seat (41) is connected to the second connecting seat (42). The electric guide rail device according to claim 20.
23. A seat assembly comprising an electric guide rail device according to any one of claims 1 to 22, further comprising a seat body (5), the seat body (5) being connected to a first slide rail (21) of the electric guide rail device, and the extending directions of the first slide rail (21) and the second slide rail (22) being parallel to the direction of movement of the seat body (5), A seat assembly characterized by the following features.
24. A center console box comprising an electric guide rail device according to any one of claims 1 to 22, further comprising a console box body, wherein the console box body is connected to a first slide rail (21) of the electric guide rail device, and the extending directions of the first slide rail (21) and the second slide rail (22) are parallel to the direction of movement of the console box body. A center console box characterized by the following features.
25. An automobile comprising a seat assembly according to claim 23, or a center console box according to claim 24, or an electric guide rail device according to any one of claims 1 to 22, An automobile characterized by the following features.