Seat track system for a vehicle and vehicle comprising a seat track system

Abstract

A seat track system for a vehicle. The seat track system comprises an upper track and a fixed lower track attached to a vehicle floor structure. The upper track is configured for attachment to a vehicle seat and is movably arranged relative to the lower track in a vehicle longitudinal direction. The upper track comprises a first side section and a second side section. A cavity is formed in a lower portion between the first side section and the second side section. The lower track comprises a first lateral side element arranged in relation to and in overlapping relation with the first side section and a second lateral side element arranged in relation to and in overlapping relation with the second side section. The seat track system further comprises an elongated load member attached to the lower track, an upper part of the load member extending into the cavity. One or more lower parts of the load member are connected to the floor structure. The first lateral side element and the second lateral side element are respectively configured for blocking lateral movement of the first side section and the second side section when the upper track is deformed in a vehicle crash event.

Description

Technical Field

[0001] This disclosure relates to a seat track system for a vehicle. The seat track system includes an upper track and a fixed lower track attached to the vehicle's floor structure. The upper track is configured to be attached to a vehicle seat and is movably arranged relative to the lower track in the longitudinal direction of the vehicle. This disclosure also relates to a vehicle including a seat track system. Background Technology

[0002] Vehicle seats are typically equipped with seat rail systems that provide a mechanical sliding connection between the seat and the vehicle's floor structure. A conventional seat rail system consists of a pair of interconnected rails that can slide linearly relative to each other, with the lower rail fixedly attached to the floor structure and the upper rail secured to the seat. This system allows the seat to be adjusted longitudinally for convenient positioning. However, conventional seat rail systems often have complex load paths from the floor structure to the seat, which is disadvantageous when the system is subjected to stress during a collision. To achieve the desired performance, these complex load paths result in bulky and expensive seat rail systems. This is particularly important if the vehicle is equipped with an integrated seatbelt system that connects only to the seat, where all impact forces need to be absorbed by the seat structure.

[0003] Therefore, there is a need for an improved seat track system that can efficiently absorb loads in vehicle collision events to improve the safety of vehicle occupants. This seat track system should meet legal requirements, be lightweight in construction, and have a low-cost design. Summary of the Invention

[0004] One object of this disclosure is to provide a seat rail system for vehicles and a vehicle including the aforementioned problems. This object is achieved at least in part by the features in the independent claims. The dependent claims contain further improvements to the seat rail system.

[0005] This disclosure relates to a seat track system for a vehicle. The seat track system includes an upper track and a fixed lower track attached to a vehicle floor structure. The upper track is configured to attach to a vehicle seat and is movably arranged relative to the lower track in the longitudinal direction of the vehicle. The upper track includes a first side segment and a second side segment. A cavity is formed in a lower portion between the first and second side segments. The lower track includes a first lateral side element arranged and overlapping with the first side segment and a second lateral side element arranged and overlapping with the second side segment. The seat track system also includes an elongated load member attached to the lower track, wherein an upper portion of the load member extends into the cavity. One or more lower portions of the load member are connected to the floor structure. In the event of deformation of the upper track during a vehicle collision, the first lateral side element is configured to impede lateral movement of the first side segment, and the second lateral side element is configured to impede lateral movement of the second side segment.

[0006] The advantages of these features are that the load path from the floor structure via the load-bearing member to the upper rail, anchored to the floor structure via the load-bearing member, and prevented from large deformations of the rail by the blocking of lateral movement through the lateral side elements, all contribute to the protection of the seat rail system. This simple and efficient construction of the seat rail system with load-bearing members and lateral side elements provides a straight and symmetrical load path from the floor structure via the upper rail to the vehicle seat, allowing for a compact system with low height, low cost, and light weight. Through the interaction between the floor structure and the upper rail via the load-bearing member, forces are efficiently concentrated in the system during a vehicle collision, resulting in high system stiffness that prevents large deformations. The system's ability to efficiently absorb loads during a vehicle collision enhances the safety of vehicle occupants.

[0007] According to one aspect of this disclosure, one or more lower components of the load-bearing member extend through the floor structure. The load-bearing member is configured to directly engage with the floor structure and the lower portion in the event of a vehicle collision to establish a load path from the floor structure through the load-bearing member to the upper track. Through the connection between the load-bearing member and both the floor structure and the lower portion, the seat track system is able to efficiently absorb loads in the event of a vehicle collision, thereby improving the safety of vehicle occupants.

[0008] According to another aspect of this disclosure, the lower portion of the upper track has a bell-shaped cross-sectional configuration, enabling the formation of a cavity between the first and second side sections. The cavity is configured to surround the upper component. The cavity is arranged around the upper component of the load member for a simple and robust connection between the lower portion and the load member. The cavity also allows for longitudinal displacement of the upper track relative to the lower track under normal operating conditions for positioning the vehicle seat without any interaction between the load member and the lower portion.

[0009] According to one aspect of this disclosure, the upper component of the load-bearing member has a T-shaped cross-section at the top, comprising an upper flange extending in a transverse direction. The upper flange includes a first flange segment and a second flange segment extending in a transverse direction on opposite sides of a web segment. A first side segment includes a first flange projecting inward in a transverse direction, and a second side segment includes a second flange projecting inward in a transverse direction. The first flange is disposed below the first flange segment and configured to engage with the first flange segment in a vehicle collision event. The second flange is disposed below the second flange segment and configured to engage with the second flange segment in a vehicle collision event. The upper flange having the first flange segment and the second flange segment is configured to engage with the first flange and the second flange of the lower portion of the upper rail in a vehicle collision event. The upper flange efficiently engages with the lower portion of the upper rail in a vehicle collision event for a reliable and robust (strong and high-strength) connection between the load-bearing member and the upper rail. A reliable (robust) connection can prevent the upper rail from separating from the lower rail in the event of a vehicle collision.

[0010] According to another aspect of this disclosure, the first flange extends inwardly toward the load-bearing member from the first side section and has an upwardly inclined configuration. The second flange extends inwardly toward the load-bearing member from the second side section and also has an upwardly inclined configuration. The upwardly inclined configuration of the first and second flanges ensures a high-strength (firm) attachment to the load-bearing member.

[0011] According to another aspect of this disclosure, the first flange section extends outward from the web section toward the first side section and has a downwardly inclined configuration. The second flange section extends outward from the web section toward the second side section and also has a downwardly inclined configuration. The downwardly inclined configuration of the first and second flange sections ensures secure attachment to the first and second flanges of the upper track.

[0012] According to one aspect of this disclosure, the first flange section has an extension that is parallel or substantially parallel to the extension of the first flange in the unloaded state. The second flange section has an extension that is parallel or substantially parallel to the extension of the second flange in the unloaded state. When the upper rail shifts from the unloaded state to the loaded state in a vehicle collision event, the parallel extensions ensure a secure and efficient engagement between the components.

[0013] According to another aspect of this disclosure, the lower track includes a lower section. One or more lower components of the load member extend through the lower section. A first lateral side element and a second lateral side element extend upward from the lower section on opposite sides of the load member. In this way, the load member can be connected to the lower track to form a robust configuration. With this configuration, the load member becomes part of the lower track, thereby simplifying system assembly. The extensions of the lateral side elements on opposite sides of the load member make the system configuration compact and robust.

[0014] According to another aspect of this disclosure, the first lateral side element extends from the lower section toward the load-bearing member and has an inwardly inclined configuration. The second lateral side element extends from the lower section toward the load-bearing member and also has an inwardly inclined configuration. The inwardly inclined configuration of the lateral side elements can provide increased system strength.

[0015] According to one aspect of this disclosure, one or more lower components of the load-bearing member extend through corresponding openings in the floor structure. The extensions of the lower components through these openings ensure a tight fit between the load-bearing member and the floor structure in the event of a vehicle collision. These openings further simplify the process of installing the lower rails to the floor structure.

[0016] According to another aspect of this disclosure, one or more lower components of the load-bearing member are configured to engage with the lower surface of the floor structure in the event of a vehicle collision. The lower surface absorbs the forces generated during a vehicle collision, and the floor structure has a robust (high-strength and solid) construction. The engagement between the lower components and the floor structure ensures that the lower track does not detach from the floor structure during a vehicle collision.

[0017] According to another aspect of this disclosure, one or more lower components of the load-bearing member have a T-shaped cross-section at the bottom and a lower flange extending in the lateral direction. The lower flange is configured to engage with the floor structure in a vehicle collision event. The efficient engagement of the lower flange with the floor structure in a vehicle collision event achieves a reliable and robust connection between the load-bearing member and the floor structure. This robust connection via the lower flange prevents the lower rail from separating from the floor structure in a vehicle collision event.

[0018] According to one aspect of this disclosure, the seat track system further includes a bearing structure extending in a lateral direction, wherein the bearing structure is attached to an upper track and extends from the upper track in opposite directions. The bearing structure is configured to movably engage a lower track. The bearing structure is capable of providing a low-friction movable engagement between the upper and lower tracks. The bearing structure includes bearings, and the lower track includes bearing surfaces arranged laterally on opposite sides of the load member. The bearings and bearing surfaces are configured to interact with each other when the upper track is displaced relative to the lower track. The bearings can be, for example, roller bearings, and the roller bearings can be provided with wheel elements or similar structures for rolling interaction with the bearing surfaces when the upper track is longitudinally displaced relative to the lower track. Alternatively, the bearings can be sliding bearings for sliding interaction with the bearing surfaces when the upper track is longitudinally displaced relative to the lower track.

[0019] According to another aspect of this disclosure, the floor structure is an integrated structural component of the vehicle's body-in-white structure. This integrated floor structure enables a robust system structure to efficiently absorb loads during a vehicle collision.

[0020] This disclosure also relates to a vehicle that includes the seat track system. Attached Figure Description

[0021] The present disclosure will now be described in detail with reference to the accompanying drawings, in which:

[0022] Figure 1 A schematic side view of a vehicle having a seat track system according to this disclosure is shown, wherein the seat track system has an upper track attached to the vehicle seat and a lower track attached to the floor structure.

[0023] Figure 2 A top-down perspective view of a seat track system according to this disclosure is schematically shown.

[0024] Figure 3 An exploded perspective view of a seat track system according to this disclosure is schematically shown.

[0025] Figures 4a to 4b The diagram schematically shows front sectional views of a seat track system in an unloaded state and in a loaded state, according to this disclosure.

[0026] Figures 5a to 5b The diagram schematically illustrates front sectional views of a seat track system in an unloaded state and a loaded state, according to an alternative embodiment of the present disclosure.

[0027] Figures 6a to 6cThe diagram schematically illustrates a top-down perspective view of the lower track of a seat track system located at different installation positions relative to the floor structure, according to this disclosure.

[0028] Figure 7 A bottom-up perspective view of the lower track and floor structure of the seat track system according to this disclosure is schematically shown, and

[0029] Figure 8 A top-down perspective view of a seat track system with a drive mechanism according to this disclosure is shown schematically. Detailed Implementation

[0030] The various aspects of this disclosure will now be described in conjunction with the accompanying drawings to illustrate the disclosure and not to limit it, wherein like reference numerals denote like elements (components), and variations of the described aspects are not limited to the embodiments specifically shown, but also apply to other variations of this disclosure.

[0031] Figure 1 A vehicle V with a seat track system S is schematically shown. (As shown) Figures 1 to 3 , Figures 4a to 4b , Figures 5a to 5b and Figure 8 As shown, the seat track system S includes an upper track 1 and a fixed lower track 2, the lower track 2 having a D along the longitudinal direction of the vehicle. LO The extension of the vehicle. The lower rail 2 is attached to the floor structure 3 of the vehicle V, and the upper rail 1 is attached to the vehicle seat 4. Figure 2 As shown by the double arrows, the upper track 1 is relative to the lower track 2 along the longitudinal direction D of the vehicle. LO The seat track system S is movably arranged to facilitate convenient adjustment of the vehicle seat 4 and positioning of the vehicle seat 4 relative to the floor structure 3. The lower bottom surface of the lower track 2 is positioned to connect with the upper surface 3c of the floor structure 3. The seat track system S may be equipped with suitable vehicle seat positioning and locking devices to position the upper track 1 relative to the lower track 2. The floor structure 3 forms part of the seat track system S, as will be further described below. Typically, two parallel seat track systems S are used to hold one vehicle seat 4. Figure 1 In the diagram, the seat track system S is shown connected to the front vehicle seat 4; however, the seat track system S can also be used for other adjustable vehicle seats.

[0032] Vehicle lateral direction D LA Defined as perpendicular to the longitudinal direction of the vehicle, D LO The direction. The terms "upper," "lower," "upward," and "downward" used in this article refer to the location relative to the vehicle V where it is installed. Figure 1The direction of the seat track system S at the indicated location, and refers to the direction perpendicular to the vehicle D. V Position or relative to the vehicle's vertical direction D V position.

[0033] For example Figure 2 As shown, the floor structure 3 is suitably an integrated structural component in the body-in-white structure of the vehicle V, having a length D along the longitudinal direction of the vehicle. LO And the vehicle's lateral direction D LA The extension, or basically along the longitudinal direction of the vehicle D LO And the vehicle's lateral direction D LA The extension of the vehicle body. The body-in-white structure of the vehicle V refers to a vehicle body structure in which the (multiple) metal sheet components of the vehicle body have been welded together, wherein any moving parts, motors or engines, chassis or chassis assemblies, and trim pieces have not yet been added to the vehicle body structure. Reliable attachment of the lower rail 2 can be achieved by attaching it to the floor structure 3 integrated into the body-in-white structure of the vehicle V. Additional fastening brackets or similar devices, not shown, may be used, for example, for the attachment of the lower rail 2 to the floor structure 3, wherein screw fasteners or similar fastening devices can be used for a tight and reliable attachment of the lower rail 2 to the floor structure 3 via the fastening brackets.

[0034] like Figures 4a to 4b and Figures 5a to 5b As shown, the upper track 1 has an elongated shape and includes a first side section 8a and a second side section 8b. The side sections are suitably connected to each other by appropriate fastening means. The first side section 8a and the second side section 8b can be formed as plate-like structures, which are attached to each other, for example, by welding, to form the upper track 1. Thus, the upper track 1 can be made of two connected plate-like structures, and the first side section 8a and the second side section 8b constitute the transverse sides of the upper track 1.

[0035] For example Figures 4a to 4b and Figures 5a to 5b As shown, cavity 7 is formed between a first side section 8a and a second side section 8b in the lower portion 1a of the upper track 1. The lower portion 1a of the upper track 1 suitably has a bell-shaped cross-section. The first side section 8a includes a first flange 9a projecting inward in the transverse direction, and the second side section 8b includes a second flange 9b projecting inward in the transverse direction. The first flange 9a and the second flange 9b form the lower end 11 of the lower portion 1a. The first side section 8a and the second side section 8b, together with the first flange 9a and the second flange 9b, form cavity 7.

[0036] For example Figures 4a to 4b and Figures 5a to 5bAs shown, the upper rail 1 is also provided with an upper fastening portion 18 for attaching the vehicle seat 4 to the upper rail 1. The fastening portion 18 may be arranged to have a threaded opening for receiving a threaded fastening element, thereby attaching the vehicle seat 4 to the upper rail. The vehicle seat 4 may be provided with a bracket or similar structure for attaching to the upper rail 1 and engaging with the fastening element.

[0037] For example Figure 2 As shown, when attached to the floor structure 3 of vehicle V, the fixed lower track 2 has a longitudinal direction D along the vehicle. LO The extension. For example. Figure 3 , Figures 4a to 4b , Figures 5a to 5b and Figure 7 As shown, the seat track system S also includes an elongated load member 5 attached to the lower track 2. The load member 5 includes an upper component 5a and one or more lower components 5b. (As shown in the example...) Figure 3 As can be understood, in the illustrated embodiment, the upper component 5a extends along the length of the load member 5, and a plurality of lower components 5b are arranged in a spaced-apart configuration connected to and grounded with the upper component 5a. Figures 4a to 4b and Figures 5a to 5b As shown, the upper component 5a of the load member 5 has a structure with a T-shaped cross-section at the top, and this structure has an upper flange 6a extending in the lateral direction. Figures 4a to 4b , Figures 5a to 5b and Figure 7 As shown, one or more lower components 5b of the load-bearing member 5 have a T-shaped cross-section at the bottom, which includes a lower flange 6b extending in the transverse direction. The web section 5c of the load-bearing member 5 connects the upper flange 6a and the lower flange 6b. A T-shaped cross-section means that the cross-section is T-shaped, or similar to... Figures 4a to 4b and Figures 5a to 5b The T-shape with a double-hook-like structure is shown. (Example) Figures 4a to 4b and Figures 5a to 5b As shown, the cross-sections of the upper component 5a and the lower component 5b in the load member 5 are constructed in a manner similar to or similar to an I-beam structure.

[0038] like Figure 3 and Figure 7 As shown, the lower section 2a of the lower track 2 is provided with multiple track openings 17, which are arranged to receive multiple lower components 5b. Just like from, for example... Figure 7As can be understood, when the load member 5 is installed onto the lower rail 2, the lower component 5b is suitably positioned through the corresponding rail opening 17, and thereafter, the lower component 5b can be bent into a configuration with a T-shaped cross-section at the bottom. In this way, one or more lower components 5b of the load member 5 extend through the lower section 2a of the lower rail 2. The load member 5 and the lower rail 2 are made of a suitable material with high strength, such as, for example, high-strength steel, polymer, composite material, or other suitable materials or combinations thereof. The load member 5 is attached to the lower rail 2 by suitable fastening means (such as, for example, welding, adhesive bonding, riveting, or screw fasteners).

[0039] In the illustrated embodiment, the load-bearing member 5 includes two connected material sections 5:1 and 5:2, forming a structure with an upper T-shaped cross-section and a lower T-shaped cross-section, with a web section 5c located between the two structures. Figures 4a to 4b and Figures 5a to 5b As shown, each of the material segments 5:1 and 5:2 has at least a partial U-shaped or U-shaped cross-sectional configuration. This configuration with two connected material segments simplifies the installation or assembly of the load member 5 on the lower rail 2, as each segment can be positioned in the rail opening 17, and thereafter the material segments are attached to each other and to the lower rail 2. Furthermore, with this configuration, one or more lower components 5b of the load member 5 extend through the lower segment 2a.

[0040] The cavity 7 of the upper track 1 is configured to surround the upper component 5a with an upper flange 6a of the load member 5. For example... Figures 4a to 4b and Figures 5a to 5b As shown, the first flange 9a and the second flange 9b are arranged below the upper flange 6a, and through this configuration, the first flange 9a and the second flange 9b extend inward toward the load member 5. The first side section 8a and the second side section 8b together with the first flange 9a and the second flange 9b form a cavity 7, which surrounds the upper flange 6a of the load member 5.

[0041] Therefore, in the assembled state of the seat track system S, for example Figures 4a to 4b and Figures 5a to 5b As shown, the upper part 5a of the load member 5 extends into the cavity 7 at the lower part 1a of the upper track 1.

[0042] Just like from, for example Figure 3As can be understood, the lower portion 1a of the upper track 1 can be segmented into more than one structural member to receive the upper part 5a of the load member. In the illustrated embodiment, the upper track 1 is arranged with three segments that together form the lower portion 1a, and the upper part 5a of the load member 5 extends into these three segments forming the lower portion 1a. All three segments forming the lower portion 1a surround the upper flange 6a of the load member 5.

[0043] Load-bearing member 5 is configured to directly engage with floor structure 3 and lower portion 1a in the event of a vehicle collision, establishing a load path from floor structure 3 via load-bearing member 5 to upper track 1. A collision event refers to any situation in which vehicle V is subjected to impact forces, such as when vehicle V collides with an object or an object collides with vehicle V. Typical vehicle collision events are when vehicle V is involved in a crash or (collision) incident, such as a collision with another vehicle, or if vehicle V leaves the road in a crash or similar incident. If the incident involves vehicle V, the impact forces will act on vehicle seat 4 and seat track system S.

[0044] In a head-on collision, or in an accident where the front of vehicle V collides with an object, the front part of the upper track 1 is pushed by force F due to the rotational motion caused by the force acting on the vehicle seat 4. PUSH Push downwards toward the second track 2, and apply force F. PULL Pull the rear part of the upper track 1 in an upward direction away from the second track 2. In a rear-end collision, or in an accident where the rear of vehicle V hits an object, the rotational motion caused by the force acting on the vehicle seat 4 results in the pulling force F. PULL The front part of the upper track 1 is pulled upwards away from the second track 2, and the rear part of the upper track 1 is pushed by force F. PUSH Push downwards towards the second track 2. Thrust F PUSH and tension F PULL exist Figure 2 It is shown schematically in the diagram.

[0045] When the tension F PULL When acting on the upper track 1, such as the tension F in the aforementioned vehicle collision event. PULL When acting on the upper track 1, the strength of the seat track system S is crucial. Tension F PULL exist Figure 4b and Figure 5b The arrow in the middle indicates that a portion of the upper track 1 is pulled upwards away from the second track 2. When the pulling force F... PULLWhen acting on a portion of the seat track system S, the load member 5 functions to directly engage with both the floor structure 3 and the upper track 1. In this manner, the floor structure 3 is connected to the upper track 1 via the load member 5, establishing a load path from the floor structure 3 through the load member 5 to the upper track 1. The load member 5 constructs a robust and sturdy structure for the seat track system S, preventing large and undesirable deformations on the track. Through this system construction, the load member 5 directly engages with both the floor structure 3 and the lower portion 1a in a vehicle collision event. Figure 4b and Figure 5b As shown, the load path established in a vehicle collision event from the floor structure 3 via the load member 5 to the upper track 1 is formed by the connection of the load member 5 along the center line C of the seat track system S from the floor structure 3 to the upper track 1, thus establishing a shorter load path compared to conventional systems.

[0046] like Figures 4a to 4b and Figures 5a to 5b As shown, the upper flange 6a includes a first flange segment 13a and a second flange segment 13b, which extend laterally on opposite sides of the web segment 5c. In the assembled state of the seat track system S, the first flange 9a is positioned below the first flange segment 13a, and the second flange 9b is positioned below the second flange segment 13b. The first flange 9a is configured to engage with the first flange segment 13a in a vehicle collision event, and the second flange 9b is configured to engage with the second flange segment 13b in a vehicle collision event, as will be described below. Figure 4b and Figure 5b Further description. In the illustrated embodiment, a first flange 9a extends inwardly from a first side segment 8a toward the load member 5 and has an upwardly inclined configuration, and a second flange 9b extends inwardly from a second side segment 8b toward the load member 5 and also has an upwardly inclined configuration. A first flange segment 13a extends outwardly from a web segment 5c toward the first side segment 8a and has a downwardly inclined configuration, and a second flange segment 13b extends outwardly from a web segment 5c toward the second side segment 8b and also has a downwardly inclined configuration.

[0047] exist Figure 4a and Figure 5a The image shows S in an unloaded state. U The seat track system S, and under normal operating conditions, the seat track system S in the unloaded state S U This is used, for example, when the user is seated in vehicle seat 4 or when the user adjusts vehicle seat 4. Figure 4b and Figure 5b The image shows S in loading state. LThe seat track system S is below, and this loading state occurs during a vehicle collision event with tension F. PULL When acting on the components of the seat track system S, it will be further described below.

[0048] As in Figure 4a and Figure 5a As shown in the illustrated embodiment, the first flange segment 13a has an unloaded state S U The second flange segment 13b has an extension that is parallel or substantially parallel to the extension of the first flange 9a. In the unloaded state, S... U The extension is parallel or substantially parallel to the extension of the second flange 9b. The parallel extension simplifies the reliable interaction between the corresponding flange segment and the first and second flanges.

[0049] More specifically, the upper flange 6a is configured to engage with the lower portion 1a of the upper rail 1 in the event of a vehicle collision. The first flange 9a engages with the first flange segment 13a in the event of a vehicle collision, and the second flange 9b engages with the second flange segment 13b in the event of a vehicle collision, for a high-strength connection between the upper rail 1 and the load-bearing member 5. In this way, the first flange 9a and the second flange 9b are configured to engage with the upper flange 6a. (As from...) Figure 4b and Figure 5b Understandably, the components involved are arranged as hook-like elements that interact with each other in a vehicle collision, preventing the upper rail 1 from separating from the lower rail 2 due to the connection between the load member 5 and the lower part 1a. In a vehicle collision, due to the minimal gap between the components involved, the upper rail 1 is pulled upwards a short distance away from the lower rail 2. Figure 4a and Figure 5a As shown, under normal operating conditions, there is a small gap between the upper flange 6a and the corresponding first flange 9a and second flange 9b, which allows the upper rail 1 to be positioned relative to the lower rail 2 along the longitudinal direction D of the vehicle. LO Movement is used to position the vehicle seat 4 relative to the floor structure 3.

[0050] In a similar manner, one or more lower components 5b of the load-bearing member 5 are configured to engage with the lower surface 3b of the floor structure 3 in a vehicle collision event. The lower flange 6b engages the lower surface 3b of the floor structure 3 in a vehicle collision event to achieve a robust (high-strength) connection between the floor structure 3 and the load-bearing member 5. Just like from... Figure 4b and Figure 5b As can be understood, the lower flange 6b interacts with the floor structure 3 to prevent the lower track 2 from separating from the floor structure 3. Figures 4a to 4b and Figures 5a to 5bAs shown, the lower flange 6b of the lower component 5b is arranged as a hook-like element that interacts with the floor structure 3 in a vehicle collision event, preventing the lower rail 2 from separating from the floor structure 3 due to the connection between the load member 5 and the floor structure 3. In a vehicle collision event, due to the small gap between the lower flange 6b and the lower surface 3b of the floor structure 3, the lower rail 2 can be pulled upwards a short distance away from the floor structure. As described below, under normal operating conditions, the small gap between the lower flange 6b and the lower surface 3b of the floor structure 3 allows the lower rail 2 to be mounted onto the floor structure 3.

[0051] like Figures 4a to 4b and Figures 5a to 5b As shown, the lower track 2 includes a first lateral side element 2b and a second lateral side element 2c. The first lateral side element 2b and the second lateral side element 2c each extend upwards from the lower portion 2a of the lower track. The first lateral side element 2b and the second lateral side element 2c extend from the lower section 2a on opposite sides of the load member 5. For example... Figure 4a and Figure 5a As shown, the first lateral side element 2b is arranged to connect with the first side section 8a and in the vehicle's vertical direction D V It overlaps with the first side segment 8a. For example... Figure 4a and Figure 5a As shown, the second lateral side element 2c is arranged to connect with the second side section 8b and along the vehicle's vertical direction D. V It overlaps with the second side segment 8b. For example... Figure 4b and 5b As shown, along the vertical direction D between the first lateral side element 2b and the first side segment 8a. V The overlapping structure of the first lateral side element 2b is configured to block the lateral movement of the first side segment 8a when the upper track 1 deforms during a vehicle collision. Figure 4b and 5b As shown, along the vertical direction D between the second lateral side element 2c and the second side segment 8b. V The overlapping structure of the second lateral side element 2c is configured to block the lateral movement of the second side segment 8b when the upper track 1 deforms during a vehicle collision event.

[0052] exist Figures 4a to 4b In the embodiment shown, the first lateral side element 2b extends from the lower section 2a along a direction parallel to or substantially parallel to the vehicle's vertical direction D. V Extending in the direction of, and the second lateral side element 2c extends from the lower section 2a along a direction parallel to or substantially parallel to the vehicle's vertical direction D. V Extending in the direction of. In Figures 5a to 5bIn the alternative embodiment shown, the first lateral side element 2b extends upward from the lower section 2a toward the load member 5 and has an inwardly inclined configuration, and the second lateral side element 2c extends upward from the lower section 2a toward the load member 5 and also has an inwardly inclined configuration. This alternative design can be used to increase system strength. Figures 4a to 4b and Figures 5a to 5b In the illustrated embodiment, the lateral side elements are arranged as sidewalls of the lower track 2. However, it should be understood that the lateral side elements may have other suitable designs and constructions, such as other types of continuous or discrete elements to form part of the lower track 2, and arranged in an overlapping configuration to block lateral movement of the respective side segments.

[0053] like Figures 4a to 4b and Figures 5a to 5b As shown, one or more lower parts 5b of the load-bearing member 5 extend through corresponding openings 3a in the floor structure 3. In this way, one or more lower parts 5b of the load-bearing member 5 are connected to the floor structure 3. Just like from... Figure 3 and Figure 7 As can be understood, the position of opening 3a coincides with the position of the lower part 5b spaced apart along the load member 5. Opening 3a has a narrowing structure, and opening 3a is along the longitudinal direction D of the vehicle. LO Tapering. Suitable narrowing shapes are, for example, like... Figure 3 The keyhole shape is shown. However, any suitable narrowing shape can be used. In the illustrated embodiment, the opening 3a is provided with a narrow section 16a and a wide section 16b.

[0054] The wide section 16b of the opening 3a has suitable dimensions for receiving the lower part 5b, and as... Figure 6a As illustrated, when the lower track 2 and load member 5 are installed onto the floor structure 3, the lower part 5b with the lower flange 6b is inserted into the wide section 16b. Figure 6a As indicated by the arrow, the lower component 5b enters the wide section 16b during the downward movement of the lower track 2. (As shown in the image) Figure 6b As shown, when inserted into the opening 3a, the lower part 5b extends through the floor structure 3, and the lower flange 6b is positioned below the floor structure 3. Figure 6b As indicated by the arrow, to complete the installation of the lower track 2 onto the floor structure 3, the lower track 2 is pushed towards the narrow section 16a after being inserted into the wide section 16b. Figure 6c As shown, by pushing the lower track 2 in the direction toward the narrow section 16a, the lower flange 6b will be positioned below the floor structure 3 into its final installation position. Just like from... Figure 4b and Figure 5bAs can be understood, when the lower flange 6b is positioned below the floor structure 3 within the narrow section 16a, the engagement between the lower flange 6b and the lower surface 3b of the floor structure 3 prevents the lower rail 2 from shifting in the upward direction. As described above, the lower rail 2 can also be attached to the floor structure 3 via a fastening bracket (not shown). When the lower rail 2 is attached to the floor structure 3, the upper rail 1 and the vehicle seat 4 can be mounted on the lower rail 2.

[0055] For example Figure 3 , Figures 4a to 4b and Figures 5a to 5b As shown, the seat track system S also includes a bearing structure 10 extending laterally. The bearing structure 10 is attached to the upper track 1 and extends laterally from the upper track 1 in opposite directions. The bearing structures 10 can be arranged in pairs on opposite sides of the upper track. The bearing structures 10 are configured to movably engage the lower track 2 and to provide a low-friction engagement between the upper track 1 and the lower track 2. The bearing structure 10 includes a bearing 10a, which is suitably connected to the upper track 1 via an extending shaft structure 10b or similar means for lateral positioning of the bearing 10a relative to the lower track 2.

[0056] For example Figures 4a to 4b and Figures 5a to 5b As shown, the lower track 2 includes two bearing surfaces 12 arranged laterally on opposite sides of the load member 5. The bearing 10a and the bearing surfaces 12 are configured to interact with each other when the upper track 1 is displaced relative to the lower track 2. Figure 3 In the illustrated embodiment, the first track 1 includes two pairs of bearing structures 10 arranged to interact with bearing surfaces 12. However, any suitable number of bearing structures 10 can be used. Bearings 10a can be, for example, roller bearings, and roller bearings can be provided with wheel elements or similar structures for rolling interaction with bearing surfaces 12 during longitudinal displacement of the upper track 1 relative to the lower track 2. Alternatively, bearings 10a can be sliding bearings for sliding interaction with bearing surfaces 12 during longitudinal displacement of the upper track 1 relative to the lower track 2. Other types of bearings can also be used depending on the system's construction and design. Figures 4a to 4b and Figures 5a to 5b As shown, the bearing structure 10 is positioned above the lower end 11 of the lower portion 1a of the upper rail 1 to achieve a compact and robust construction of the system.

[0057] like Figure 8As shown, the seat track system S may also be provided with a drive mechanism 19 for positioning the upper track 1 relative to the lower track 2. The drive mechanism may include a motor 19a and be configured as a worm gear drive mechanism. The worm gear drive mechanism may include an elongated screw 19b connected to the lower track 2, which interacts with a worm wheel 19c arranged on the upper track 1. It should be understood that the drive mechanism 19 may have other suitable configurations, such as, for example, a linear actuator or a ball screw mechanism.

[0058] In a vehicle collision, when the pulling force F PULL When acting on at least one component of the upper track 1, such as Figures 4a to 4b and Figures 5a to 5b As shown, the component of the upper track 1 is shifted in the upward direction and is in an unloaded state S. U Movement to loading state S L When the upper track 1 shifts upwards during a vehicle collision, the first flange 9a engages the first flange segment 13a, and the second flange 9b engages the second flange segment 13b, achieving a strong (high-strength) connection between the upper track 1 and the load member 5. The engagement of the first and second flanges with their respective flange segments causes the load member 5 to move upwards, wherein the lower flange 6b engages the lower surface 3b of the floor structure 3 during a vehicle collision, achieving a strong connection between the floor structure 3 and the load member 5. (The last sentence appears to be incomplete and possibly refers to a different context.) Figure 4b and Figure 5b As can be understood, the engagement of the first flange and the second flange with their respective flange segments causes further deformation of the first side segment 8a and the second side segment 8b, and this deformation causes the first side segment 8a and the second side segment 8b to shift laterally outward away from the load member 5. However, through the vertical direction D between the first lateral side element 2b and the first side segment 8a... V The overlapping structure allows the first lateral element 2b to block the lateral movement of the first side segment 8a when it deforms. This is achieved through the vertical direction D between the second lateral element 2c and the second side segment 8b. V The overlapping structure allows the second lateral element 2c to block the lateral movement of the second side segment 8b when it deforms. Therefore, the blocked lateral movement prevents large deformation of the corresponding side segment, thus achieving a secure connection between the upper track 1 and the floor structure 3. Figure 4b and Figure 5b As shown, the first side segment 8a deforms during a vehicle collision and is caused to be in the first contact area A. C1 The middle section contacts the first lateral side element 2b to block its lateral movement, and the second side section 8b is caused to deform in the second contact area A during a vehicle collision event. C2The first side segment 8a contacts the second lateral side element 2c to block lateral movement. Combined with the engagement of the load member 5, the floor structure 3, and the upper rail 1, the blocking of lateral movement of the first side segment 8a and the second side segment 8b ensures a straight and symmetrical load path from the floor structure 3 through the upper rail 1 to the vehicle seat 4. The load path established during a vehicle collision event, from the floor structure 3 through the load member 5 to the upper rail 1, is formed by the engagement of the load member 5 along the centerline C of the seat rail system S from the floor structure 3 to the upper rail 1.

[0059] It should be understood that the above description is merely exemplary in nature and is not intended to limit the scope of this disclosure, its application, or use. Although specific examples have been described in the specification and shown in the drawings, those skilled in the art will understand that various changes can be made and elements can be substituted with equivalents without departing from the scope of this disclosure as defined in the claims. Furthermore, modifications can be made to adapt particular situations or materials to the teachings of this disclosure without departing from its essential scope. Therefore, this disclosure is not intended to be limited to the specific examples shown in the drawings and described in the specification, which are currently contemplated as the best models for carrying out the teachings of this disclosure, and the scope of this disclosure will include any embodiments falling within the scope of the foregoing description and the appended claims. Reference numerals used in the claims should not be considered as limiting the scope of the subject matter protected by the claims; their sole function is to facilitate the understanding of the claims.

[0060] Figure Labels

[0061] 1: On track

[0062] 1a: Lower part

[0063] 2: Lower track

[0064] 2a: Lower section

[0065] 2b: First transverse side element

[0066] 2c: Second lateral side element

[0067] 3: Floor structure

[0068] 3a: Opening

[0069] 3b: Lower surface

[0070] 3c: Top surface

[0071] 4: Vehicle seats

[0072] 5: Load-bearing components

[0073] 5a: Upper component

[0074] 5b: Lower component

[0075] 5c: Web section

[0076] 6a: Upper flange

[0077] 6b: Lower flange

[0078] 7: Cavity

[0079] 8a: First side section

[0080] 8b: Second side section

[0081] 9a: First flange

[0082] 9b: Second flange

[0083] 10: Bearing Structure

[0084] 10a: Bearing

[0085] 10b: Shaft structure

[0086] 11: Lower end

[0087] 12: Bearing surface

[0088] 13a: First flange section

[0089] 13b: Second flange section

[0090] 16a: Narrow section

[0091] 16b: Wide section

[0092] 17: Track opening

[0093] 18: Fastening parts

[0094] 19: Drive mechanism

[0095] 19a: Electric motor

[0096] 19b: Screw

[0097] 19c: Worm Gear

[0098] A c1 First contact area

[0099] A c2 Second contact area

[0100] C: Centerline

[0101] D LA : Vehicle lateral direction

[0102] D LO Longitudinal direction of the vehicle

[0103] D V Vehicle vertical direction

[0104] F PULL :pull

[0105] F PUSH :thrust

[0106] S: Seat Track System

[0107] S L Loading status

[0108] S U Not loaded

[0109] V: Vehicle

Claims

1. A seat track system (S) for a vehicle (V), wherein, The seat track system (S) includes an upper track (1) and a fixed lower track (2), the lower track (2) being attached to the floor structure (3) of the vehicle (V), wherein the upper track (1) is configured to be attached to the vehicle seat (4), wherein the upper track (1) is configurable relative to the lower track (2) in the longitudinal direction (D) of the vehicle. LO The seat track system (S) is arranged in a movable manner, wherein the upper track (1) includes a first side section (8a) and a second side section (8b), wherein a cavity (7) is formed in the lower portion (1a) between the first side section (8a) and the second side section (8b), wherein the lower track (2) includes a first lateral side element (2b) and a second lateral side element (2c), wherein the first lateral side element (2b) is arranged in relation to and overlaps with the first side section (8a), and the second lateral side element (2c) is arranged in relation to and overlaps with the second side section (8b), wherein the seat track system (S) further includes an elongated load member (5) attached to the lower track (2), wherein the upper part (5a) of the load member (5) extends into the cavity (7). The load member (5) is characterized in that one or more lower components (5b) are connected to the floor structure (3), and wherein the first lateral side element (2b) is configured to block the lateral movement of the first side segment (8a) when the upper rail (1) deforms in a vehicle collision event, and the second lateral side element (2c) is configured to block the lateral movement of the second side segment (8b) when the upper rail (1) deforms in a vehicle collision event. One or more lower parts (5b) of the load member (5) extend through the floor structure (3), wherein the load member (5) is configured to directly engage with the floor structure (3) and the lower part (1a) in the event of a vehicle collision to establish a load path from the floor structure (3) through the load member (5) to the upper track (1).

2. The seat track system (S) according to claim 1, characterized in that, The lower portion (1a) of the upper track (1) has a bell-shaped cross-section structure that forms the cavity (7) between the first side section (8a) and the second side section (8b), wherein the cavity (7) is configured to surround the upper component (5a).

3. The seat track system (S) according to claim 1, characterized in that, The upper part (5a) of the load member (5) has a T-shaped cross-section at the top, the T-shaped cross-section having an upper flange (6a) extending in the lateral direction, wherein the upper flange (6a) includes a first flange section (13a) and a second flange section (13b) extending in the lateral direction on opposite sides of the web section (5c), wherein the first side section (8a) includes a first flange (9a) projecting inward in the lateral direction, and the second side section (8b) includes a second flange (9b) projecting inward in the lateral direction, wherein the first flange (9a) is disposed below the first flange section (13a) and is configured to engage with the first flange section (13a) in the vehicle collision event, wherein the second flange (9b) is disposed below the second flange section (13b) and is configured to engage with the second flange section (13b) in the vehicle collision event.

4. The seat track system (S) according to claim 3, characterized in that, The first flange (9a) extends inward from the first side section (8a) toward the load member (5) and has an upwardly inclined configuration, and wherein the second flange (9b) extends inward from the second side section (8b) toward the load member (5) and has an upwardly inclined configuration.

5. The seat track system (S) according to claim 3, characterized in that, The first flange section (13a) extends outward from the web section (5c) toward the first side section (8a) and has a downwardly inclined structure, wherein the second flange section (13b) extends outward from the web section (5c) toward the second side section (8b) and has a downwardly inclined structure.

6. The seat track system (S) according to claim 3, characterized in that, The first flange section (13a) has a state of being unloaded (S U The second flange segment (13b) has an extension parallel or substantially parallel to the extension of the first flange (9a), and wherein the second flange segment (13b) has the extension in the unloaded state (S U The extension is parallel or substantially parallel to the extension of the second flange (9b).

7. The seat track system (S) according to claim 1, characterized in that, The lower track (2) includes a lower section (2a), wherein one or more lower components (5b) of the load member (5) extend through the lower section (2a), wherein the first lateral side element (2b) and the second lateral side element (2c) extend upward from the lower section (2a) on opposite sides of the load member (5).

8. The seat track system (S) according to claim 7, characterized in that, The first lateral side element (2b) extends from the lower section (2a) toward the load member (5) and has an inwardly inclined configuration, and wherein the second lateral side element (2c) extends from the lower section (2a) toward the load member (5) and has an inwardly inclined configuration.

9. The seat track system (S) according to claim 1, characterized in that, The one or more lower components (5b) of the load member (5) extend through the corresponding opening (3a) in the floor structure (3).

10. The seat track system (S) according to claim 1, characterized in that, The one or more lower components (5b) of the load member (5) are configured to engage with the lower surface (3b) of the floor structure (3) in the event of a vehicle collision.

11. The seat track system (S) according to claim 1, characterized in that, The one or more lower components (5b) of the load member (5) have a T-shaped cross-section at the bottom, the T-shaped cross-section having a lower flange (6b) extending in the lateral direction, wherein the lower flange (6b) is configured to engage with the floor structure (3) in the event of a vehicle collision.

12. The seat track system (S) according to any one of claims 1-11, characterized in that, The seat track system (S) further includes a bearing structure (10) extending in a lateral direction, wherein the bearing structure (10) is attached to the upper track (1) and extends from the upper track (1) in two opposite directions, wherein the bearing structure (10) is configured to movably engage the lower track (2).

13. The seat track system (S) according to any one of claims 1-11, characterized in that, The floor structure (3) is an integrated structural component of the body-in-white structure of the vehicle (V).

14. A vehicle (V) comprising a seat track system (S) according to any one of claims 1 to 13.

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