Pre-positioned sliding rail structure and pre-positioning structure

Abstract

The present disclosure relates to a pre-positioned sliding rail structure. A support configured to connect a seat component is provided at an upper portion of a sliding rail, and the support is connected to a top plane of the sliding rail by means of a bottom plane. The pre-positioning sliding rail structure is characterized in that a positioner is provided between the sliding rail and the support, and the positioner pre-connects the support to the sliding rail. The positioner is arranged between the sliding rail and the support, such that the sliding rail and the support are basically fixed before welding, thereby reducing the amount of stress released after welding, and simplifying a welding fixture. The present disclosure further relates to a pre-positioning structure for a vehicle seat.

Description

A pre-positioning slide rail structure and a pre-positioning structure Technical Field

[0001] This disclosure relates to the field of vehicle seats, and particularly to a pre-positioning slide rail structure and a pre-positioning structure. Background Technology

[0002] U-shaped rail brackets typically use lap welding, where weld lines are formed on both sides of the workpiece along the extension direction of the slide rail for fixation. Although this fixing method is widely used due to its high strength, it requires high flatness of the workpiece lap surface because the workpieces need to be clamped and fixed during welding. Uneven lap surfaces can cause stress release in the workpiece after the clamps are released, leading to deformation of the parts.

[0003] Chinese invention patent publication number CN116350028A discloses a slide rail connection structure, in which perforated flanges are provided on the mating surface of the slide rail and the bracket, and laser welding is applied between the perforated flanges to fix the bracket on the slide rail. In this solution, the weld bead is arranged on the flange at the bottom of the slide rail and close to the axis. Although this can solve the problem of stress release between the workpieces after welding, the weld bead length depends on the number of perforations and the flange length, resulting in low weld strength.

[0004] Furthermore, in the existing technology, similar problems exist in the welding of workpiece lap surfaces as mentioned above regarding the slide rail in other parts of the vehicle seat, namely, stress release occurs in the workpiece after the fixture is released, causing deformation of the parts. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, the present disclosure aims to provide a pre-positioning slide rail structure to improve the welding quality between the slide rail and the bracket. Furthermore, the present disclosure also aims to provide a pre-positioning structure that can improve the welding quality between two components of a vehicle seat to be welded.

[0006] To achieve the above objectives, one aspect of this disclosure relates to a pre-positioning slide rail structure, wherein a bracket for connecting a seat component is provided on the upper part of the slide rail, the bracket is connected to the top plane of the slide rail via a bottom plane, and a positioning structure is provided between the slide rail and the bracket, the positioning structure causing the bracket to be pre-connected to the slide rail.

[0007] In some embodiments, the positioning structure includes either a recess and a corresponding protrusion that can be fitted into the recess. The recess is disposed on one of the top plane of the slide rail and the bottom plane of the bracket, while the protrusion is disposed on the other of the top plane of the slide rail and the bottom plane of the bracket. It should be noted that in this disclosure, the term "recess" is not limited to a blind hole structure, but can also be understood as a through structure, such as a through hole.

[0008] In some embodiments, the positioning structure comprises a plurality of recesses arranged on the top plane along the extension direction of the slide rail and a protrusion on the bottom plane corresponding to the plurality of recesses, wherein the protrusion is embedded in the recesses to achieve a pre-connection between the bracket and the slide rail.

[0009] In some embodiments, the protrusion is composed of at least a first protrusion and a second protrusion, and the recess is also composed of at least a first recess and a second recess, wherein the first protrusion and the first recess are both elliptical to form a positioning reference when the recess and the protrusion are assembled.

[0010] In some embodiments, the recess is a through hole formed on the top plane.

[0011] In some embodiments, the positioning structure includes an adhesive layer disposed between the top plane and the bottom plane, the adhesive layer bonding the slide rail to the bracket to achieve the pre-connection.

[0012] In some embodiments, the positioning structure is a weld nugget disposed between the top plane and the bottom plane, and the slide rail and the bracket are pre-connected through the weld nugget.

[0013] In some embodiments, the protrusions and the recesses are stamped.

[0014] In some embodiments, at least two recesses and at least two corresponding protrusions are provided, the at least two recesses being spaced apart from each other, and the at least two protrusions being spaced apart from each other. Thus, anti-torsion pre-positioning can be achieved by the spaced-apart recesses and protrusions, thereby ensuring directional pre-positioning.

[0015] In some embodiments, at least a portion of one of the at least two recesses or convexes is constructed differently in shape and / or size from the corresponding remaining recesses or convexes. Thus, by designing different sizes and / or shapes, a foolproof pre-positioning can be achieved, preventing the assembler from incorrectly assembling convexes and recesses of different sizes and / or shapes.

[0016] In some embodiments, the pre-connection structure is a pre-welded, pre-bonded, or pre-clamped connection, wherein the pre-clamped connection is performed without deformation of the slide rail and the bracket.

[0017] In some embodiments, the positioning structure is configured to allow the bracket to be pre-attached to the slide rail, so that the bracket can be finally fixedly attached to the slide rail by a final connection after being substantially fixed by the positioning structure and the pre-attachment.

[0018] In some implementations, the final connection is a weld.

[0019] The beneficial effects of the pre-positioning slide rail structure disclosed herein are as follows:

[0020] In the pre-positioning slide rail structure provided in this disclosure, a positioning structure is arranged between the slide rail and the bracket, which allows for pre-connection, enabling the two to be basically fixed before welding, thereby reducing the stress release after final welding and simplifying the welding fixture. Here, the positioning structure and pre-connection are only used to pre-fix the slide rail and bracket before welding, and not for final fixing. Final fixing, or final connection, is achieved through welding.

[0021] A second aspect of this disclosure relates to a pre-positioning structure for a vehicle seat, the pre-positioning structure being configured to pre-position two components of the vehicle seat, characterized in that a positioning structure is provided between the two components, the positioning structure enabling one of the two components to be pre-connected to the other component, so that the one of the two components can be finally fixedly connected to the other component by a final connection after being substantially fixed by the positioning structure and the pre-connection.

[0022] In some embodiments, the positioning structure includes a recess and a protrusion corresponding to the recess and capable of being fitted into the respective recess. The recess is disposed on one of the mating surfaces of the one component and the other component, while the protrusion is disposed on the other of the mating surfaces of the one component and the other component.

[0023] In some embodiments, the positioning structure comprises a plurality of recesses arranged along the extension direction of the one component on the mating surface of the other component, and a protrusion corresponding to the plurality of recesses on the mating surface of the other component, wherein the protrusion is embedded in the recesses to achieve a pre-connection between the one component and the other component.

[0024] In some embodiments, the protrusion is composed of at least a first protrusion and a second protrusion, and the recess is also composed of at least a first recess and a second recess, wherein the first protrusion and the first recess are both elliptical to form a positioning reference when the recess and the protrusion are assembled.

[0025] In some embodiments, the recess is a through hole provided on the corresponding mating surface.

[0026] In some embodiments, the positioning structure includes an adhesive layer disposed between the mating surfaces of one component and the mating surfaces of the other component, the adhesive layer bonding the one component to the other component to achieve the pre-connection.

[0027] In some embodiments, the positioning structure is a weld nugget disposed between the mating surfaces of one component and the mating surfaces of the other component, and the pre-connection of the one component and the other component is achieved by the weld nugget.

[0028] In some embodiments, the protrusions and the recesses are stamped.

[0029] In some embodiments, at least two recesses and at least two corresponding protrusions are provided, the at least two recesses being spaced apart from each other, and the at least two protrusions being spaced apart from each other. Thus, anti-torsion pre-positioning can be achieved by the spaced-apart recesses and protrusions, thereby ensuring directional pre-positioning.

[0030] In some embodiments, at least a portion of one of the at least two recesses or convexes is constructed differently in shape and / or size from the corresponding remaining recesses or convexes. Thus, by designing different sizes and / or shapes, a foolproof pre-positioning can be achieved, preventing the assembler from incorrectly assembling convexes and recesses of different sizes and / or shapes.

[0031] In some embodiments, the pre-connection configuration is a pre-welded, pre-bonded, or pre-clamped connection, wherein the pre-clamped connection is performed without deformation of the two components.

[0032] In some implementations, the final connection is a weld.

[0033] In some embodiments, the two components of the vehicle seat are two interconnected components of an adjuster.

[0034] The beneficial effects of this pre-positioning structure are as follows:

[0035] In a pre-positioning structure provided in this disclosure, a positioning structure is provided between two components of a vehicle seat, which allows for pre-connection, enabling the two components to be substantially fixed before welding, thereby reducing stress release after final welding and simplifying the welding fixture. Here, the positioning structure and pre-connection are only used to pre-fix the two components before welding, and not for final fixation. Final fixation, or final connection, is achieved through welding. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0037] Figure 1 is a schematic diagram of the rail support connection.

[0038] Figure 2 is a schematic diagram of the structure between the slide rail and the support.

[0039] Figure 3 is a schematic diagram of the structure between the slide rail and the support.

[0040] Figure 4 is a schematic diagram of the overlap welding of this disclosure.

[0041] Figure 5 is a schematic diagram of one embodiment of this disclosure.

[0042] Figure 6 is a schematic diagram of one embodiment of this disclosure.

[0043] Figure 7 is a schematic diagram of one embodiment of this disclosure.

[0044] Figures 8 to 11 are schematic diagrams of different embodiments of the prepositioning structure for the angle adjuster disclosed herein. Detailed Implementation

[0045] In the description of this disclosure, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. The above description is for the purpose of simplifying the description of this disclosure and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this disclosure.

[0046] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature but do not exclude the presence of one or more other features. The term “and / or” used in this specification includes any and all combinations of one or more of the relevant listed items.

[0047] In the specification, when an element is described as being "on," "fixed" to, "connected" to, or "joined" to another element, the element may be directly located on, fixed to, connected to, joined to, or in contact with the other element, or there may be an intermediate element present. In the specification, the description of a feature being arranged "adjacent" to another feature may refer to a feature having a portion that overlaps with the adjacent feature or a portion located above or below the adjacent feature.

[0048] It is understood that although the terms "first," "second," etc., may be used herein to describe different elements, these elements should not be limited by these terms. These terms are merely used to distinguish one element from another. Therefore, a first element may be referred to as a second element without departing from the teachings of this application.

[0049] Exemplary embodiments of this application will now be described with reference to the accompanying drawings. However, it should be understood that this application can be presented in many different ways and is not limited to the embodiments described below. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments. Throughout the drawings, the same reference numerals denote the same or functionally identical elements.

[0050] Figure 1 shows the connection between the slide rail and the bracket. The seat or seat component used to support people is adjusted by the relative sliding between the slide rail 10 and its cooperating component. One or more brackets 20 are provided between the slide rail 10 and the seat or seat component as intermediate parts for transition connection.

[0051] Figures 2 and 3 illustrate the positioning structure between the slide rail and the bracket. This positioning structure allows the slide rail 10 and the bracket 20 to be pre-connected in a manner capable of withstanding a pull-out force of not less than 200 N, so that the adjacent lower surfaces 22 and upper surfaces 13 of the bottom plane 21 and top plane 12 substantially overlap each other. This fixing method restricts the bracket 20 from displacement relative to the extension direction and / or lateral direction of the slide rail 10. Specifically, the positioning structure includes a first recess 14a and several second recesses 14b arranged on the top plane 12 along the extension direction of the slide rail 10, and correspondingly, a first protrusion 23a and several second protrusions 23b protruding downwards on the bottom plane 21. Depending on the size and shape of the bracket 20 or the area of ​​the mating surface between the bottom plane 21 and the top plane 12, and considering the positioning accuracy requirements of the welding process between the slide rail 10 and the bracket 20, one or more sets of matching parts can be provided for the first protrusion 23a, the first concave part 14a or the second protrusion 23b, the second concave part 14b.

[0052] In order to engage the slide rail 10 and the bracket 20 as quickly and accurately as possible during operation, the first protrusion 23a, the first concave portion 14a or the second protrusion 23b, the second concave portion 14b can be positioned by using the cross-sectional shape of the corresponding positioning structure. For example, its cross-section (viewed from the bottom of the slide rail upward) can be designed as an oblong hole, while the others are designed as matching circular holes.

[0053] To simplify the molding and manufacturing of the slide rail 10 and the bracket 20, the second protrusion 23b and the second recess 14b can also be formed as holes on the slide rail 10.

[0054] Figure 4 shows the fixed connection between the slide rail and the bracket. After the slide rail 10 and the bracket 20 are basically fixed by the first protrusion 23a, the first concave part 14a or the second protrusion 23b, the second concave part 14b, the bracket 20 is fixed firmly on the slide rail 10 by laser welding from both sides of the top plane 12 and the bottom plane 21 using the welding gun 2.

[0055] Figure 5 illustrates one embodiment of this disclosure, in which the pre-connection between the slide rail 10 and the bracket 20 is achieved using a pair of concave and convex dies. A concave die 4 and a convex die 3 are applied to the overlapping slide rail 10 and bracket 20, punching out fixed protrusions 23 and concave portions 14 on the bottom plane 21 and top plane 12, so that the lower surface 22 and upper surface 13 substantially overlap. Preferably, the punching process between the protrusions 23 and concave portions 14 employs TOX riveting.

[0056] Figure 6 illustrates another embodiment of this disclosure, in which the pre-connection between the slide rail 10 and the bracket 20 is achieved using resistance welding. A welding torch is applied to the overlapping slide rail 10 and bracket 20, forming a weld nugget 5 between the bottom plane 21 and the top plane 12, thus achieving a substantial overlap between the lower surface 22 and the upper surface 13. Preferably, the resistance welding can be achieved using spot welding or projection welding.

[0057] Figure 7 illustrates another embodiment of this disclosure, in which the pre-connection between the slide rail 10 and the bracket 20 is achieved using adhesive bonding. Adhesive layers 6 are respectively provided on the lower surface 22 and the upper surface 13, and a simple tooling is used for positioning to achieve a basic overlap between the lower surface 22 and the upper surface 13.

[0058] Figure 8 illustrates schematic diagrams of different embodiments of the pre-positioning structure for the angle adjuster according to this disclosure. As shown in Figure 8, in the pre-positioning structure of the two components of the angle adjuster, one recess 23c (and its corresponding protrusion) and another recess 23d (and its corresponding protrusion) are spaced apart from each other and can have substantially the same shape (circle as shown in Figure 8) and size. In contrast, it is also conceivable, as shown in Figure 9, that one recess 23c (and its corresponding protrusion) may be smaller in size than the other recess 23d (and its corresponding protrusion). Furthermore, it is also conceivable, as shown in Figure 10, that one recess 23c (and its corresponding protrusion) may be elliptical while the other recess 23d (and its corresponding protrusion) may be circular; or as shown in Figure 11, that one recess 23c (and its corresponding protrusion) may be rectangular while the other recess 23d (and its corresponding protrusion) may be circular.

[0059] It should be emphasized that in the embodiments shown in Figures 1, 3, and 8, the corresponding recesses and convex parts are constructed substantially identically to each other. However, it is conceivable that the corresponding recesses and convex parts may also be constructed to differ in size and / or shape. As shown in Figures 9 to 11, for example, one convex part and its corresponding recess may be larger in size, while the other convex part and its corresponding recess may be smaller in size; furthermore, for example, one convex part and its corresponding recess may be elliptical, while the other convex part and its corresponding recess may be circular, or one convex part and its corresponding recess may be square, while the other convex part and its corresponding recess may be circular, and so on. This allows for a foolproof design. Furthermore, such structures with different sizes and shapes are unsuitable for possible riveting, as it is unnecessary to adjust parameters such as the riveting force of the riveting tool for different shapes and sizes of positioning structures. The positioning structure of this disclosure enables intuitive and simple pre-positioning and pre-connection.

Claims

1. A pre-positioning slide rail structure, wherein a bracket for connecting a seat component is provided on the upper part of the slide rail, the bracket being connected to the top plane of the slide rail via a bottom plane, characterized in that, A positioning structure is provided between the slide rail and the bracket, the positioning structure allowing the bracket to be pre-connected to the slide rail.

2. The pre-positioning slide rail structure as described in claim 1, characterized in that, The positioning structure includes either a recess and a protrusion corresponding to the recess and capable of being fitted into the corresponding recess. The recess is disposed on one of the top plane of the slide rail and the bottom plane of the bracket, while the protrusion is disposed on the other of the top plane of the slide rail and the bottom plane of the bracket.

3. The pre-positioning slide rail structure as described in claim 2, characterized in that, The positioning structure consists of a plurality of recesses arranged on the top plane along the extension direction of the slide rail and a plurality of protrusions on the bottom plane corresponding to the plurality of recesses. The protrusions are embedded in the recesses to achieve a pre-connection between the bracket and the slide rail.

4. The pre-positioning slide rail structure as described in claim 3, characterized in that, The protrusion is composed of at least one first protrusion and a second protrusion, and the concave part is also composed of at least one first concave part and a second concave part. Both the first protrusion and the first concave part are elliptical to form a positioning reference when the concave part and the protrusion are assembled.

5. A pre-positioning slide rail structure as described in any one of claims 2 to 4, characterized in that, The recess is a through hole formed on the top plane.

6. The pre-positioning slide rail structure as described in claim 1, characterized in that, The positioning structure includes an adhesive layer disposed between the top plane and the bottom plane, the adhesive layer bonding the slide rail and the bracket together to achieve the pre-connection.

7. The pre-positioning slide rail structure as described in claim 1, characterized in that, The positioning structure is a weld nugget disposed between the top plane and the bottom plane, and the slide rail and the bracket are pre-connected through the weld nugget.

8. A pre-positioning slide rail structure as described in any one of claims 2 to 4, characterized in that, The protrusions and the recesses are stamped.

9. A pre-positioning slide rail structure as described in claim 2, characterized in that, The room is provided with at least two recesses and at least two protrusions corresponding to the at least two recesses, the at least two recesses being spaced apart from each other, and the at least two protrusions being spaced apart from each other corresponding to them.

10. A pre-positioning slide rail structure as described in claim 9, characterized in that, At least a portion of one of the at least two recesses or at least two protrusions is constructed differently from the corresponding remaining recesses or protrusions in shape and / or size.

11. The pre-positioning slide rail structure as described in claim 1, characterized in that, The pre-connection structure is a pre-welded, pre-bonded, or pre-clamped connection, wherein the pre-clamped connection is performed without deformation of the slide rail and the bracket.

12. The pre-positioning slide rail structure as described in claim 1, characterized in that, The positioning structure is configured to allow the bracket to be pre-connected to the slide rail, so that the bracket can be finally fixedly connected to the slide rail by a final connection after being substantially fixed by the positioning structure and the pre-connection.

13. A pre-positioning slide rail structure as described in claim 12, characterized in that, The final connection is welding.

14. A pre-positioning structure for a vehicle seat, the pre-positioning structure being configured to pre-position two components of the vehicle seat, characterized in that, A positioning structure is provided between the two components, which allows one of the two components to be pre-connected to the other component, so that the one component can be finally fixedly connected to the other component by a final connection after being substantially fixed by the positioning structure and the pre-connection.

15. The pre-positioning structure according to claim 14, characterized in that, The positioning structure includes either a recess and a protrusion corresponding to the recess and capable of being fitted into the corresponding recess. The recess is disposed on one of the mating surfaces of the one component and the other component, while the protrusion is disposed on the other of the mating surfaces of the one component and the other component.

16. The pre-positioning structure as described in claim 15, characterized in that, The positioning structure consists of a plurality of recesses arranged along the extension direction of the one component on the mating surface of the other component, and a protrusion corresponding to the plurality of recesses on the mating surface of the other component. The protrusion is embedded in the recess to achieve a pre-connection between the one component and the other component.

17. The pre-positioning structure as described in claim 16, characterized in that, The protrusion is composed of at least one first protrusion and a second protrusion, and the concave part is also composed of at least one first concave part and a second concave part. Both the first protrusion and the first concave part are elliptical to form a positioning reference when the concave part and the protrusion are assembled.

18. The prepositioning structure as described in any one of claims 15 to 17, characterized in that, The recess is a through hole provided on the corresponding mating surface.

19. The pre-positioning structure as described in claim 14, characterized in that, The positioning structure includes an adhesive layer disposed between the mating surfaces of one component and the mating surfaces of the other component, the adhesive layer bonding the one component and the other component together to achieve the pre-connection.

20. The pre-positioning structure as described in claim 14, characterized in that, The positioning structure is a weld nugget disposed between the mating surfaces of one component and the other component, and the pre-connection of the one component and the other component is achieved by bonding the two components together through the weld nugget.

21. The prepositioning structure as described in any one of claims 15 to 17, characterized in that, The protrusions and the recesses are stamped.

22. The pre-positioning structure as described in claim 15, characterized in that, The room is provided with at least two recesses and at least two protrusions corresponding to the at least two recesses, the at least two recesses being spaced apart from each other, and the at least two protrusions being spaced apart from each other corresponding to them.

23. The prepositioning structure as described in claim 22, characterized in that, At least a portion of one of the at least two recesses or at least two protrusions is constructed differently from the corresponding remaining recesses or protrusions in shape and / or size.

24. The pre-positioning structure as described in claim 14, characterized in that, The pre-connection structure is a pre-welded, pre-bonded, or pre-clamped connection, wherein the pre-clamped connection is performed without deformation of the two components.

25. The pre-positioning structure as described in claim 14, characterized in that, The final connection is welding.

26. The pre-positioning structure as described in claim 14, characterized in that, The two components of the vehicle seat are two interconnected components of the adjuster.

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