Vehicle seat mounting system and method of manufacturing
By designing chamfering and welding methods for filling materials in the vehicle seat installation system, the problem of weak welding of safety components was solved, and reliable connection of seat belt fasteners or anchor points was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-25
- Publication Date
- 2026-03-10
AI Technical Summary
In the existing technology, the welding of safety components of vehicle seats, such as seat belt fasteners or anchor points, is not strong and reliable enough to meet the needs of long-term use.
Design an installation system in which a slider includes first and second sliding elements, the component being connected to the first sliding element by a welded fastening portion, the fastening edge being chamfered, and the weld forming a wide entry area between the chamfer and the fastening area, the weld being performed using filler material to ensure weld strength.
It enables robust and reliable welding of safety components, especially seat belt fasteners or anchor points, improving the reliability and strength of the welds.
Smart Images
Figure CN121625902A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present invention relates to the field of vehicle seat mounting systems, in particular for motor vehicles allowing the sliding of a seat relative to the vehicle. BACKGROUND
[0002] A motor vehicle seat can be mounted in a motor vehicle via a mounting system comprising one or more sliders to allow the sliding of the seat relative to the motor vehicle chassis. The sliding of the seat allows the driver or passenger to adjust the position of the seat, for example to adapt to the height of the driver or passenger.
[0003] Each slider comprises a first sliding element and a second sliding element slidably mounted one on top of the other, one being fixed to the vehicle and the other being fixed to the seat.
[0004] A component associated with the seat can be fastened to the first sliding element or to the second sliding element by welding, so that this component moves with the seat. One example of such a component is a seat belt fastener or anchorage point. SUMMARY
[0005] One of the objectives of the present invention is to provide a mounting system that makes it possible to fasten a component to a sliding element by welding, which is robust and reliable.
[0006] To this end, the present invention relates to a system for mounting a vehicle seat, in particular an automotive seat, comprising a slider and a component, in which:
[0007] - the slider comprises a first sliding element and a second sliding element slidably mounted one on top of the other in a longitudinal direction,
[0008] - the component comprises a fastening portion having a fastening edge fastened to a fastening area of the first sliding element via a weld, the component being provided with a chamfer along the fastening edge.
[0009] The weld formed between the first sliding element and the fastening edge of the chamfer of the component produces a weld having a wide access area between the chamfer and the fastening area, which facilitates welding, and a reduced distance between the fastening edge and the fastening area, which is beneficial to the strength of the weld.
[0010] The result is a robust and reliable weld, in particular for safety components such as seat belt fasteners or anchorage points.
[0011] According to other advantageous aspects of the invention, the mounting system comprises one or more of the following features, taken separately or in any technically feasible combination:
[0012] - the fastening portion has a first face and an opposite second face, wherein the fastening edge extends between the first face and the second face.
[0013] - the chamfer extends between the fastening edge and the first face of the fastening portion.
[0014] - the chamfer extends obliquely with respect to the fastening edge and with respect to the first face of the fastening portion.
[0015] - the component comprises a fastening tab comprising a distal portion defining the fastening portion and a proximal portion, the proximal portion and the fastening portion being oblique with respect to each other, for example connected by a fold.
[0016] - the fastening region is convex.
[0017] - the fastening portion extends at the location of the weld between the fastening edge and the fastening region in an extension direction parallel to a normal of the fastening region.
[0018] - the fastening region is circular, for example arc-shaped around a central axis.
[0019] - the fastening portion extends at the location of the weld between the fastening edge and the fastening region in a radial direction with respect to the central axis.
[0020] - the fastening region is shaped in the longitudinal direction and / or the fastening edge extends in the longitudinal direction and / or the chamfer extends in the longitudinal direction.
[0021] - the weld is performed using a filler material, in particular using a weld filler metal.
[0022] - the component is a fastener, for example a seat belt anchor point.
[0023] - the first and second sliding elements are shaped in the longitudinal direction.
[0024] - the second sliding element is designed to be fixed to the vehicle chassis and the first sliding element is configured to be fixed to the seat, in particular to a seat cushion.
[0025] The invention also relates to an assembly comprising a vehicle seat and a mounting system as described above, the vehicle seat being fixed to the first sliding element of the sliding member of the mounting system.
[0026] The invention also relates to a method for manufacturing a mounting system for a vehicle seat, in particular a car seat, the method comprising the following steps:
[0027] - a first sliding element of a slide, said slide comprising said first sliding element and a second sliding element, said first sliding element and said second sliding element being configured to be slidably mounted on each other along a longitudinal direction,
[0028] - a component comprising a fastening portion intended to fasten said component to said first sliding element,
[0029] - fastening said fastening portion to said first sliding element by welding a fastening edge of said fastening portion to a fastening area of said first sliding element, said component being provided with a chamfer along said fastening edge, said welding being preferably performed with a filler material, in particular by applying said filler material between said fastening edge and said fastening area via an access area defined between said chamfer and said fastening area.
[0030] According to other advantageous aspects of the invention, the mounting method comprises one or more of the following features, taken separately or in any technically feasible combination:
[0031] - said fastening area is convex, and / or said fastening portion extends along a direction parallel to a normal to said fastening area at the location of the weld between said fastening edge and said fastening area.
[0032] - said component comprises a fastening tab comprising a distal portion defining said fastening portion and a proximal portion, said proximal portion and said fastening portion being inclined relative to each other, for example connected by a fold.
[0033] - said manufacturing process comprises, prior to welding, abutting an abutment portion of said component against a first sliding element abutment area, in particular with a planar abutment between said abutment portion of said component and said first sliding element abutment area, to position said component relative to said first sliding element during welding. BRIEF DESCRIPTION OF DRAWINGS
[0034] The invention and its advantages will become clearer upon reading the following description, given only as non-limiting example and in reference to the attached drawings wherein:
[0035] Figure 1 is a front view of a vehicle seat mounted in a vehicle;
[0036] Figure 2 is a sectional view of a vehicle seat mounting system comprising a first sliding element, a second sliding element and a component fastened to the first sliding element;
[0037] Figure 3 is an exploded perspective view of the first sliding element and the component;
[0038] Figure 4 is a cross-sectional view of the first sliding element and the component during an operation of welding the component to the first sliding element. DETAILED DESCRIPTION
[0039] As Figure 1 illustrated, the assembly comprises a seat 10 mounted in the vehicle 12, in particular on a chassis 14 of the vehicle 12, via a mounting system 16.
[0040] The seat 10 comprises a seat bottom 18 and a backrest 20. The seat 10 advantageously comprises a headrest 22 located at an upper end of the backrest 20. The mounting system 16 is preferably arranged between the seat bottom 18 and the chassis 16 of the vehicle 12.
[0041] The mounting system 16 is configured to allow the seat 10 to slide in a longitudinal direction X, as illustrated by an arrow F in Figure 1 . In particular, the seat bottom 18 is slidably mounted on the frame 14 via the mounting system 16 along the longitudinal direction X.
[0042] The mounting system 16 comprises one or more sliders 24, each slider 24 having a first sliding element 26 and a second sliding element 28 that slide with respect to each other along the longitudinal direction X.
[0043] For example, the first sliding element 26 is fixed to the seat 10, in particular to the seat bottom 18, while the second sliding element 28 is fixed to the vehicle 12, in particular to the chassis 14. Alternatively, the configuration is reversed.
[0044] The mounting system 16 comprises, for example, two parallel sliders 24, i.e. allowing the seat 10 to slide in the same longitudinal direction X with respect to the vehicle.
[0045] The sliders 24 are similar - a single slider will be described in more detail with reference to Figures 2 to 4 .
[0046] As Figure 2 illustrated, the first sliding element 26 of the slider 24 is, for example, a first profile.
[0047] The first sliding element 26 comprises, for example, a first web 30 and two first flanges 32. The first web 30 extends between the two first flanges 32. Each of the first flanges 32 extends from the first web 30 on a respective side. For example, the first flanges 32 have a folded free edge. The first sliding element 26 has a generally U-shaped profile.
[0048] The first sliding element 26 is, for example, made of metal.
[0049] The second sliding element 28 is, for example, a second profile.
[0050] The second sliding element 28 includes, for example, a second web 34 and two second flanges 36. The second web 34 extends between the two second flanges 36. Each of the second flanges 36 extends from the second web 34 on a corresponding side. The second flange 32 has, for example, a folded free edge.
[0051] The second sliding element 28 is made of metal, for example.
[0052] like Figure 2 As shown, the mounting system 16 includes a component 40 that is fixed to the fastening area 42 of the first sliding element 26 via a welding portion 44.
[0053] Component 40 is made of metal, for example.
[0054] The component 40 includes a fastening portion 46 having a fastening edge 48, a weld portion 44 formed between the fastening edge 48 and the fastening area 42, and the component 40 is provided with a chamfer 50 along the edge 48.
[0055] The fastening edge 48 and chamfer 50 extend, for example, parallel to the longitudinal direction X.
[0056] The fastening part 46, for example, has a flat, elongated shape.
[0057] The fastening portion 46 has a first surface 46A and an opposing second surface 46B. The first surface 46A and the second surface 46B extend, for example, parallel to each other.
[0058] The fastening edge 48 extends between the first surface 46A and the second surface 46B, preferably perpendicular to the first surface 46A and the second surface 46B.
[0059] The chamfer 50 extends at an angle to the fastening edge 48 and the first face 46A, for example, between the fastening edge 48 and the first face 46A.
[0060] In a cross-section in a plane perpendicular to the longitudinal direction X, such as Figure 2 As shown, the fastening edge 48 and the chamfer 50 are inclined to each other at a non-zero angle.
[0061] The fastening region 42 extends in the longitudinal direction X. The fastening region 42 of the first sliding element 26 is shaped in the longitudinal direction X. For example, the fastening region 42 is circular and raised.
[0062] The fastening region 42 is, for example, the surface of the circular joint 52 between one of the first web 30 and the first flange 32.
[0063] Preferably, when viewed in a cross-section in a plane perpendicular to the longitudinal direction X, the circular fastening region 42 extends in an arc shape around a central axis A parallel to the longitudinal direction X, for example at an angle of approximately 90°.
[0064] The joint 52 is preferably circular around the central axis A in an arc, for example, at an angle of about 90°.
[0065] The joint 52 is, for example, a fold formed between the first web 30 and the first flange 32 connected to the first web 30 via the joint 52.
[0066] Preferably, when viewed in a cross-section in a plane perpendicular to the longitudinal direction X, the fastening portion 46 extends in a direction E that is substantially parallel to the extension direction of the normal of the fastening region 42 at the location of the weld portion 44.
[0067] When the fastening region 42 is rounded with an arc, the extension direction E extends radially relative to the central axis A, and the fastening region 42 extends in an arc around the central axis.
[0068] Edge 48 is preferably substantially perpendicular to the extension direction E, and chamfer 50 extends obliquely relative to the extension direction E, i.e. neither perpendicular to nor parallel to the extension direction E.
[0069] In some examples, component 40 includes a fastening tab 54, wherein a fastening portion 46 forms part of the fastening tab 54.
[0070] The fastening tab 54 includes, for example, a proximal portion 56 and a distal portion defined by the fastening portion 46. The proximal portion 56 is preferably connected to the remainder of the component 40. The fastening portion 46 is free before being welded to the fastening region 42.
[0071] In particular, when viewed in the longitudinal direction X, the proximal portion 56 and the fastening portion 46 are, for example, inclined relative to each other. For example, the component 40 has an intermediate fold 58 between the proximal portion 56 and the fastening portion 46.
[0072] When the mounting system 16 is fixed in the vehicle, the proximal portion 56 extends horizontally, for example, while the fastening portion 46 extends obliquely, neither horizontally nor vertically.
[0073] like Figure 2 As shown, viewed in a cross-section in a plane perpendicular to the longitudinal direction X, the proximal portion 54 and the attachment portion 46 form a non-zero angle with each other. For example, component 40 includes an attachment portion 60 configured to attach a comfort element or safety element, such as a seat belt, to component 40. For example, attachment portion 60 is provided with attachment holes 62 for attaching safety elements or comfort elements.
[0074] The first bridging element 60 is, for example, bent.
[0075] For example, when the mounting system 16 is fixed in the vehicle, the attachment portion 60 extends vertically.
[0076] The fastening tab 54, including the attachment portion 46, and the attachment portion 60 are formed, for example, from a single piece of material, such as from a single piece of metal, such as from a metal sheet (especially formed by machining, drilling and / or bending).
[0077] When the fastening tab 54 has a proximal portion 56, the attachment portion 46 extends from the proximal portion, for example, from the attachment portion 60, is inclined relative to the attachment portion 60, and is particularly perpendicular to the attachment portion 60.
[0078] Optionally, component 40 includes a support portion 64, which is configured to be preferably supported in a planar manner on the support region 66 of the first sliding element 26.
[0079] The support region 66 is, for example, the surface of the first web 30 of the first sliding element 26.
[0080] Component 40 is fixed to the first sliding element 16 only via weld 44. In this case, component 40 is not fixed to the first sliding element 26 by any other weld or fastener (such as rivets or screws).
[0081] Alternatively, component 40 may be secured to the first sliding element 26 by one or more additional welds and / or one or more other fasteners (such as rivets or screws). For example, support portion 64 may be secured to the first sliding element using one or more welds and / or one or more other fasteners (such as rivets or screws).
[0082] like Figure 4 As shown, welded part 44 (in Figure 4 (shown in dashed lines) is preferably produced by welding with a filler material, such as CMT (Cold Metal Transition), MIG (Metal Inert Gas), or MAG (Metal Active Gas).
[0083] Figure 4 A welding head 68 and a welding wire 70 are shown for depositing material and forming a weld portion 44 in the form of a weld between the fastening edge 48 and the fastening area 42.
[0084] To create the welded portion 44, the component 40 is placed against the first sliding element 26. Positioning (position and orientation) is facilitated by providing a support portion 64, which enables precise positioning of the component 40 relative to the first sliding element 26 and, in particular, relative to the fastening region 42.
[0085] Then, preferably, a weld 44 is formed on the side where the chamfer 50 of the fastening portion 42 is located, in particular, the material supplied by the weld is introduced between the fastening edge 48 and the fastening region 42 through the inlet area defined between the chamfer 50 and the fastening region 42.
[0086] The chamfer 50 is designed to form a wide entry area between the chamfer 50 and the fastening area 42, which facilitates the penetration of the weld 44 between the fastening edge 48 and the fastening area 42, while providing a reduced distance D between the fastening edge 48 and the fastening area 42 to minimize the size of the weld 44 between the fastening edge 48 and the fastening area 42.
[0087] Using a circular, especially convex, and particularly arc-shaped fastening region 42 helps to create a wide access area between the chamfer 50 and the fastening region 42, while reducing the distance between the fastening edge 48 and the fastening region 42.
[0088] The basic radial positioning of the fastening part 46 relative to the arc-shaped fastening area 42 enables the welded part 44 to work with limited stress, thereby making the welded part 44 more reliable.
[0089] Component 40 is, for example, a fastener or anchor point for a seat belt.
[0090] When the installation system 16 includes two sliders 24, only one slider 24 is provided with a component 40, such as a component defining an anchor point, or each slider is provided with a component defining an anchor point, one for permanent attachment of one end of the seat belt and the other for attachment of the seat belt locking device.
Claims
1. A mounting system (16) for a vehicle seat (10), particularly an automobile seat, the mounting system comprising a slider (24) and a component (40), wherein: -The slider (24) includes a first sliding element (26) and a second sliding element (28) slidably mounted on each other in the longitudinal direction (X). - The component (40) includes a fastening portion (46) having a fastening edge (48) which is fixed to the fastening area (42) of the first sliding element (26) via a weld (44), and the component (40) is provided with a chamfer (50) along the fastening edge (48).
2. The mounting system of claim 1, wherein, The fastening portion (42) has a first face (46A) and a second face (46B) opposite to each other, and the fastening edge (48) extends between the first face (46A) and the second face (46B).
3. The mounting system of claim 2, wherein, The chamfer (50) extends between the fastening edge (48) and the first surface (46A) of the fastening portion (46).
4. The mounting system of claim 3, wherein, The chamfer (50) extends obliquely relative to the fastening edge (48) and relative to the first surface (46A) of the fastening portion (46).
5. The mounting system of any of the preceding claims, wherein, The component (40) includes a fastening tab (54) comprising a distal portion and a proximal portion (56) defining the fastening portion (46), the proximal portion (56) and the fastening portion (46) being inclined relative to each other, for example connected by a fold (58).
6. The mounting system of any of the preceding claims, wherein, The fastening area (42) is convex.
7. The mounting system of claim 6, wherein, The fastening portion (44) extends in a direction (E) parallel to the normal of the fastening region (42) at the location of the weld (44) between the fastening edge (48) and the fastening region (42).
8. The mounting system of any of the preceding claims, wherein, The fastening area (42) is shaped in the longitudinal direction (X), and / or the fastening edge (48) extends in the longitudinal direction (X), and / or the chamfer (50) extends in the longitudinal direction (X).
9. An assembly comprising a vehicle seat (10) and an installation system (16) according to any of the preceding claims, the vehicle seat being fixed to the first sliding element (26) of the slider (24) of the installation system (16).
10. A method for manufacturing an installation system (16) for a vehicle seat (10), particularly an automobile seat, the method comprising the steps of: - Obtain a first sliding element (26) of a slider (24), the slider including the first sliding element (26) and a second sliding element (28), the first sliding element and the second sliding element being configured to be slidably mounted on each other along the longitudinal direction (X). - Acquiring component (40), said component including a fastening portion (46) intended to secure said component to the first sliding element (26), - the fastening of the fastening portion (46) to the first sliding element (26) by welding of the fastening edge (48) of the fastening portion (46) to a fastening area (42) of the first sliding element (26), the component (40) being provided with a chamfer (50) along the fastening edge (48), the welding being preferably performed by a filler material, in particular by application of the filler material between the fastening edge (48) and the fastening area (42) via an inlet area defined between the chamfer (50) and the fastening area (42).