Seat sliding rail structure, seat and vehicle

Abstract

The utility model relates to the technical field of vehicle seats, in particular to a seat sliding rail structure, a seat and a vehicle. The seat sliding rail structure comprises a first sliding rail, a second sliding rail and an elastic supporting piece, the elastic supporting piece is arranged at the rear end of the second sliding rail and fixedly connected with the second sliding rail, and the first sliding rail is matched with the second sliding rail in a sliding mode. The elastic supporting piece abuts against the first sliding rail when the first sliding rail slides to the rear end of the second sliding rail. When the first sliding rail slides to the rear end of the second sliding rail from front to back, the first sliding rail abuts against the elastic supporting piece, the elastic supporting piece elastically deforms, and meanwhile upward acting force is applied to the first sliding rail and counteracts pretightening force between the first sliding rail and the second sliding rail, so that it is guaranteed that the first sliding rail and the second sliding rail can move relatively; in other words, the rigidity of the sliding rail structure is improved, the stability of the seat sliding rail structure is improved, and the risk of abnormal sound caused by seat shaking is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle seats, and in particular to a seat slide rail structure, a seat and a vehicle. Background Art

[0002] The existing seat slide rail structure is mainly composed of a first slide rail, a second slide rail, a steel ball (roller) and a locking mechanism. The second slide rail is fixed to the vehicle body by bolts, and the first slide rail moves back and forth on the second slide rail through the rolling of the steel ball. Since the first slide rail and the second slide rail are in rolling fit, when the seat slide rail structure is at the limit of its travel, that is, when the first slide rail moves to the rear end of the second slide rail, the amount of steel ball hanging out from the end of the first slide rail is the largest, and it is also the position where the slide rail rigidity is the weakest. Considering the trend of lightweight and long travel of seat slide rails, the rigidity of the seat slide rail in the last position will become weaker and weaker, which will lead to a reduction in the seat modal and increase the risk of seat vibration and abnormal noise. Utility Model Content

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a seat slide rail structure, a seat and a vehicle.

[0004] The first aspect of the present application provides a seat slide rail structure, including a first slide rail, a second slide rail and an elastic support member, the elastic support member is arranged at the rear end of the second slide rail and is fixedly connected to the second slide rail, the first slide rail can be slidably matched with the second slide rail, and the elastic support member abuts against the first slide rail when the first slide rail slides to the rear end of the second slide rail.

[0005] Optionally, the elastic support member includes an elastic member and a support member, the lower end of the elastic member is connected to the second slide rail, the upper end of the elastic member is connected to the support member, and the upper surface of the support member is provided with a first inclined surface inclined downward from the center to the edge.

[0006] Optionally, the elastic support member further includes a guide rod, which is arranged in a direction perpendicular to the bottom surface of the second slide rail, and the elastic member and the support member are both sleeved on the guide rod.

[0007] Optionally, the elastic member is a spring, and the supporting member is made of a hard material.

[0008] Optionally, a mounting hole is provided on the support member, and the support member is sleeved on the guide hole through the mounting hole. A baffle is provided at the upper end of the guide rod, and the area of ​​the baffle is larger than the area of ​​the mounting hole.

[0009] Optionally, the first slide rail includes a first slide rail body and an abutment plate, the abutment plate is fixedly connected to the first slide rail body, and the lower end of the abutment plate is arranged lower than the upper surface of the support member.

[0010] Optionally, the first slide rail includes a first slide rail body and an abutment plate, the abutment plate is fixedly connected to the first slide rail body, and the abutment plate is located on the side of the first slide rail body facing the elastic support member, and the lower end of the abutment plate is provided with a second inclined surface parallel to the first inclined surface, and the second inclined surface is arranged toward the elastic support member.

[0011] Optionally, the first slide rail body includes two first plate bodies and a second plate body connected between the two first plate bodies, the first plate body and the two second plate bodies together form a "J"-shaped structure, the abutment plate is located on the inner side of one of the first plate bodies and is in contact with the inner side surface of the first plate body, one end of the abutment plate extends from the inner side surface of the first plate body to the second plate body and then extends to the first plate body on the other side, and is in contact with the inner side wall of the second plate body and the inner side wall of the other first plate body, the other end of the abutment plate extends downward along a side wall of the first slide rail body and bends outward, and the second inclined surface is formed on the bending section of the abutment plate.

[0012] Optionally, the lower end of the abutment plate is arranged to be gradually inclined upward from front to rear.

[0013] A second aspect of the present application provides a seat, comprising a seat body and a seat slide rail structure as described in any one of the above items.

[0014] A third aspect of the present application provides a vehicle comprising the above-mentioned seat.

[0015] Compared with the prior art, the technical solution provided by the embodiments of the present application has the following advantages:

[0016] The seat slide rail structure provided in the embodiment of the present application has an elastic support member at the rear end of the second slide rail. When the first slide rail slides from front to back to the rear end of the second slide rail, it abuts against the elastic support member, and the elastic support member is elastically deformed while applying an upward force to the first slide rail. The elastic support member then applies an upward supporting force to the first slide rail. The second slide rail, the first slide rail and the second slide rail increase the rigidity of the slide rail structure, thereby increasing the stability of the seat slide rail structure and reducing the risk of seat shaking and abnormal noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 It is a schematic diagram of the seat slide rail structure according to an embodiment of the present application;

[0020] Figure 2 This is a state diagram of the embodiment of the present application when the first slide rail moves to the rear end of the second slide rail;

[0021] Figure 3 This is a state diagram of the first slide rail when it hangs out of the rear end of the second slide rail in the embodiment of the present application;

[0022] Figure 4 A rear view of the seat slide rail structure according to an embodiment of the present application;

[0023] Figure 5 It is a schematic diagram of the force analysis of the seat slide rail structure described in the embodiment of the present application.

[0024] Among them, 1. the first slide rail; 2. the second slide rail; 3. the elastic support member; 11. the first slide rail body; 12. the abutment plate; 21. the second slide rail body; 22. the first bending portion; 31. the elastic member; 32. the support member; 33. the guide rod; 34. the baffle; 121. the main body; 122. the reinforcement portion; 123. the second inclined surface; 321. the first inclined surface. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present application, rather than all of the embodiments.

[0027] The first slide rail of the existing seat moves forward and backward in the second slide rail through the rolling of the steel ball, thereby driving the seat to move forward and backward. In order to ensure the stability of the matching structure of the first slide rail and the second slide rail, it is necessary to set a preload between the first slide rail and the second slide rail in advance. When the slide rail structure is subjected to forces in the up and down directions and the left and right directions, the preload needs to be overcome so that the second slide rail and the first slide rail can move relative to each other, that is, the rigidity of the slide rail is improved. Due to the rolling fit, when the first slide rail moves to the travel limit position of the second slide rail, the amount of steel balls hanging out from the end of the first slide rail is the largest, which is also the position where the rigidity of the slide rail is the weakest.

[0028] like Figures 1 to 5 As shown, in order to solve the above-mentioned technical problems, an embodiment of the present application provides a seat slide rail structure, including a first slide rail 1, a second slide rail 2 and an elastic support member 3, the elastic support member 3 is arranged at the rear end of the second slide rail 2 and is fixedly connected to the second slide rail 2, the first slide rail 1 can be slidably matched with the second slide rail 2, and the elastic support member 3 abuts against the first slide rail 1 when the first slide rail 1 slides to the rear end of the second slide rail 2.

[0029] For example, the second slide rail 2 includes a second slide rail body 21 with a U-shaped cross-section and first bent portions 22 respectively located on both sides of the second slide rail body 21 and bent inwardly, and a downwardly opening limiting groove is formed between the first bent portion 22 and the second slide rail body 21; the first slide rail 1 is arranged in the second slide rail body 21, and the first slide rail 1 is slidably matched with the limiting groove through a roller; the elastic support member 3 is arranged on the bottom wall of the second slide rail body 21, and the elastic support member 3 is located at the rear end of the second slide rail 2. When the first slide rail 1 moves from front to back to the elastic support member 3, the first slide rail 1 and the elastic support member 3 interfere with each other. The elastic support member 3 is prone to elastic deformation when subjected to force. Therefore, when the first slide rail 1 and the elastic support member 3 interfere with each other, the first slide rail 1 squeezes the elastic support member 3 to cause it to elastically deform. At the same time, the elastic support member 3 applies a reaction force to the first slide rail 1 due to the elastic deformation. The reaction force and the preload force of the second slide rail 2 acting on the first slide rail 1 offset each other, ensuring that the first slide rail 1 can still slide freely when moving to the rear end of the second slide rail 2, thereby improving the rigidity of the slide rail structure, improving the stability of the slide rail structure, thereby avoiding the reduction of the seat mode and reducing the risk of seat shaking and abnormal noise.

[0030] Further, in some embodiments of the present application, the elastic support member 3 includes an elastic member 31 and a support member 32, wherein the lower end of the elastic member 31 is fixedly connected to the bottom wall of the second slide rail body 21, the upper end of the elastic member 31 is connected to the support member 32, and the upper surface of the support member 32 is set as a first inclined surface 321 that is inclined downward from the center to the edge. Specifically, the entire upper surface of the support member 32 can be set as the first inclined surface 321, or the first inclined surface 321 can be set only at the position where the upper surface of the support member 32 cooperates with the first slide rail 1.

[0031] When the first slide rail 1 moves to the position of the elastic support member 3, the first slide rail 1 and the support member 32 are squeezed against each other, and the elastic member 31 is elastically deformed downward under the action of the squeezing force, and at the same time drives the support member 32 to move downward; at the same time, the elastic force of the elastic member 31 acts on the first slide rail 1 through the support member 32. Since the first slide rail 1 and the first inclined surface 321 on the support member 32 abut against each other, the force of the support member 32 on the first slide rail 1 is in a direction perpendicular to the first inclined surface 321, that is, in an upward direction. In this way, the force can be decomposed into a component force outward in the horizontal direction and a component force upward in the vertical direction, which is offset by the preload force of the second slide rail 2 on the first slide rail 1. The magnitude of the component force outward in the horizontal direction and the component force upward in the vertical direction is related to the deformation of the elastic member 31 and the inclination angle of the first inclined surface 321.

[0032] Furthermore, in some embodiments of the present application, the elastic support member 3 also includes a guide rod 33 , which is arranged in a direction perpendicular to the bottom wall of the second slide rail body 21 , and the elastic member 31 and the support member 32 are both sleeved on the guide rod 33 .

[0033] Specifically, in some embodiments of the present application, the guide rod 33 is arranged at the rear end of the second slide rail 2, and the elastic member 31 and the support member 32 are sleeved on the guide rod 33. The guide rod 33 guides and limits the movement trajectory of the elastic member 31 and the support member 32, ensuring that the elastic member 31 can only undergo downward elastic deformation when squeezed by the first slide rail 1, and the support member 32 can only move downward, thereby avoiding the elastic member 31 and the support member 32 from tilting when squeezed, affecting the use effect of the elastic support member 3.

[0034] Furthermore, in some embodiments of the present application, the elastic member 31 can be an elastic sleeve made of rubber, silicone or other materials, or a spring, and the support member 32 can be made of a hard material, so that the contact between the elastic support member 3 and the first slide rail 1 is a hard contact, so that when the elastic support member 3 and the first slide rail 1 abut against each other, the elastic support member 3 can apply a force to the first slide rail 1.

[0035] Specifically, in some embodiments of the present application, the support member 32 is made of plastic or metal material, and the elastic member 31 is a wave spring. The wave spring is referred to as a wave spring, which is an elastic element with several peaks and valleys on a thin metal ring. It is usually used in situations where the load and deformation are not large, and the spring stiffness is required to be small and an axial preload is required. The wave spring is used as the elastic element of the slide rail structure. Under the same stiffness parameters, the installation space is small, the buffering and vibration absorption capacity is strong, and the deformation energy per unit volume of material is large.

[0036] Further, in some embodiments of the present application, a mounting hole is provided on the support member 32, and the support member 32 is sleeved on the guide hole through the mounting hole, and a baffle 34 is provided on the upper end of the guide rod 33. The mounting hole is arranged along the axial direction of the support member 32 and is arranged in the middle of the support member 32, so that the structure of the support member 32 formed is a symmetrical structure, so that the first slide rail 1 and the support member 32 are abutted at any position. The baffle 34 provided on the upper end of the guide rod 33 is to prevent the support member 32 from upwardly detaching from the guide rod 33 under the elastic force of the elastic member 31. When the support member 32 and the elastic member 31 are installed on the guide rod 33, the elastic member 31 can have a certain amount of compression, so that the elastic member 31 has a certain initial elastic force. Once the first slide rail 1 starts to abut against the support member 32, the elastic force of the elastic member 31 will act on the first slide rail 1.

[0037] Specifically, the baffle 34 is disposed on the outer circumferential surface of the guide rod 33, and the baffle 34 may be a piece continuously disposed around the circumference of the guide rod 33, or may be a plurality of pieces disposed at intervals around the circumference of the guide rod 33. The baffle 34 should not be extended too long to avoid interference with the first slide rail 1 and affect the normal contact between the first slide rail 1 and the support member 32. Therefore, the baffle 34 should be able to prevent the support member 32 from upwardly separating from the guide rod 33 and avoid covering the first inclined surface 321.

[0038] Furthermore, in some embodiments of the present application, the first slide rail 1 includes a first slide rail body 11 and an abutment plate 12 , the abutment plate 12 is fixedly connected to the first slide rail body 11 , and the lower end of the abutment plate 12 is arranged below the upper surface of the support member 32 .

[0039] Specifically, the cross-section of the first slide rail body 11 is in the shape of a "ji" character. The first slide rail body 11 includes two first plate bodies and a second plate body connected between the two first plate bodies. The second plate body is connected to the upper ends of the two first plate bodies. The lower end of the first plate body is bent outward to form a second bent portion. The second plate body and the two first plate bodies together form a "ji" character structure. During installation, the opening of the first slide rail body 11 faces downward and is located within the second slide rail 2. The two second bent portions are respectively located within the two first bent portions 22, and the first bent portion 22 and the second bent portion are connected by rollers, enabling the second bent portion to slide along the length direction of the first bent portion 22, thereby driving the first slide rail 1 to slide in the front-back direction of the second slide rail 2.

[0040] The abutting plate 12 is fixedly attached to the inner side surface of one of the first plate bodies, and the lower end of the abutting plate 12 is arranged lower than the upper surface of the support member 32. Specifically, the abutting plate 12 is located on the left or right side of the elastic support member 3. When the first slide rail 1 moves to the rear end of the second slide rail 2, the lower end of the abutting plate 12 interferes with the upper surface of the support member 32, squeezing the support member 32 and the elastic member 31 to move downward. The elastic force generated by the deformation of the elastic member 31 acts on the abutting plate 12, providing a horizontal outward component force and a vertical upward component force to the abutting plate 12, thereby canceling out the pre-tightening force received by the first slide rail 1.

[0041] Exemplarily, as Figure 5 shown, in some embodiments of the present application, the abutting plate 12 is located on the right side of the elastic support member 3. When the first slide rail 1 slides from the front to the right along the second slide rail 2 to the rear end of the second slide rail 2, the lower end of the abutting plate 12 continuously contacts and squeezes the support member 32 and the elastic member 31 with the first inclined surface 321. The elastic force generated by the deformation of the elastic member 31 acts on the abutting plate 12 through the first inclined surface 321 on the support member 32. The direction of this elastic force F is upward and to the right, so a vertical upward component force FY and a vertical rightward component force FX will be generated. When the first slide rail 1 moves to the rear end of the second slide rail 2, since the supporting force between the second slide rail 2 and the first slide rail 1 becomes smaller, due to the weight of the seat back, the first slide rail 1 is at the position with the weakest rigidity. However, in the embodiments of the present application, through the action of the elastic support member 3 and the abutting plate 12, the pre-tightening force on the first slide rail 1 is canceled, thereby improving the rigidity of the slide rail structure.

[0042] Furthermore, in some embodiments of the present application, a second inclined surface 123 parallel to the first inclined surface 321 is provided at the lower end of the abutting plate 12, and the second inclined surface 123 faces the elastic support member 3. When the first slide rail 1 slides to the rear end of the second slide rail 2, the second inclined surface 123 at the lower end of the abutting plate 12 abuts against the first inclined surface 321 on the support member 32. By using surface-to-surface abutment, the contact area between the abutting plate 12 and the support member 32 is increased, thereby increasing the force-bearing area of the first slide rail 1.

[0043] Furthermore, in some embodiments of the present application, the abutment plate 12 is located on the inner side of the first slide rail body 11 and is fitted with the inner side surface of a first plate body. One end of the abutment plate 12 extends from the inner side surface of the first plate body to the second plate body and then extends to the first plate body on the other side, and is fitted with the inner side surface of the second plate body and the inner side surface of another first plate body. The other end of the abutment plate 12 extends downward along a side wall of the first slide rail body 11 and bends outward to form a second inclined surface 123 on the bent section of the abutment plate.

[0044] Exemplarily, in some embodiments of the present application, the abutment plate 12 includes a main body 121 and a reinforcement portion 122, the main body 121 is located on the right side of the elastic support member 3, and is arranged in close contact with the right side wall of the first slide rail body 11, the lower end of the main body 121 is bent outward, and a second inclined surface 123 is formed on the bent section, the upper end of the main body 121 extends upward to the top wall of the first slide rail 1, the reinforcement portion 122 is L-shaped, and the right end of the reinforcement portion 122 is connected to the upper end of the main body 121, and the left end of the reinforcement portion 122 extends to the left end of the top wall and then bends downward and is fixed in close contact with the left side wall of the first slide rail body 11. The reinforcement portion 122 can not only improve the overall strength of the abutment plate 12, but also support the first slide rail 1 to shrink inward when subjected to force, thereby improving the peeling strength of the slide rail structure.

[0045] Furthermore, in some embodiments of the present application, the lower end of the abutment plate 12 is gradually tilted upward from front to back. When the first slide rail 1 moves from front to back, the rear end of the abutment plate 12 first abuts against the support member 32. As the first slide rail 1 continues to move backward, the front end of the abutment plate 12 begins to abut against the support member 32. Since the lower end of the abutment plate 12 is gradually tilted upward from front to back, the greater the compression of the elastic member 31 during the continuous backward movement of the first slide rail 1, that is, when the rigidity of the slide rail structure itself continues to decrease, the greater the rigidity enhancement applied by the elastic member 31 on the first slide rail 1. At the same time, the sudden change of force between the first slide rail 1 and the second slide rail 2 during the relative movement is avoided, and the discomfort during the slide rail adjustment process is reduced.

[0046] Furthermore, in some embodiments of the present application, a seat is also provided, including a seat body and a seat slide rail structure as in any of the above embodiments, wherein the second slide rail 2 is fixed on the vehicle body, the first slide rail 1 is slidably arranged in the second slide rail 2, the seat body is located above the first slide rail 1, the bottom of the seat body is fixedly connected to the bottom wall of the first slide rail body 11, and each seat is configured with two seat slide rail structures.

[0047] Furthermore, an embodiment of the present application also provides a vehicle, comprising the above-mentioned seat.

[0048] To summarize, in the seat slide rail structure provided in the embodiment of the present application, an elastic support member 3 is arranged at the rear end of the second slide rail 2. When the first slide rail 1 slides from front to back to the rear end of the second slide rail 2, it abuts against the elastic support member 3, and the elastic support member 3 is elastically deformed. At the same time, an oblique upward force is applied to the first slide rail 1, which offsets the pre-tightening force between the second slide rail 2 to ensure relative movement between the first slide rail 1 and the second slide rail 2, thereby improving the rigidity of the slide rail structure, thereby improving the stability of the seat slide rail structure and reducing the risk of seat shaking and abnormal noise.

[0049] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A seat slide rail structure, characterized in that: It includes a first slide rail, a second slide rail and an elastic support member, the elastic support member is arranged at the rear end of the second slide rail and is fixedly connected to the second slide rail, the first slide rail can be slidably matched with the second slide rail, and the elastic support member abuts against the first slide rail when the first slide rail slides to the rear end of the second slide rail.

2. The seat slide rail structure according to claim 1, characterized in that: The elastic support member includes an elastic member and a support member, the lower end of the elastic member is connected to the second slide rail, the upper end of the elastic member is connected to the support member, and the upper surface of the support member is provided with a first inclined surface inclined downward from the center to the edge.

3. The seat slide rail structure according to claim 2, characterized in that: The elastic support member further comprises a guide rod, which is arranged in a direction perpendicular to the bottom surface of the second slide rail, and the elastic member and the support member are both sleeved on the guide rod.

4. The seat slide rail structure according to claim 2, characterized in that: The elastic member is a spring, and the supporting member is made of a hard material.

5. The seat slide rail structure according to claim 3, characterized in that: The support member is provided with a mounting hole, and the support member is sleeved on the guide rod through the mounting hole. A baffle is provided at the upper end of the guide rod.

6. The seat slide rail structure according to claim 2, characterized in that: The first slide rail includes a first slide rail body and an abutment plate, wherein the abutment plate is fixedly connected to the first slide rail body and is located on the side of the first slide rail body facing the elastic support member, and the lower end of the abutment plate is provided with a second inclined surface parallel to the first inclined surface, and the second inclined surface is arranged toward the elastic support member.

7. The seat slide rail structure according to claim 6, characterized in that: The first slide rail body includes two first plate bodies and a second plate body connected between the two first plate bodies, the first plate body and the two second plate bodies together form a "J"-shaped structure, the abutment plate is located on the inner side of one of the first plate bodies and is in contact with the inner side surface of the first plate body, one end of the abutment plate extends from the inner side surface of the first plate body to the second plate body and then extends to the first plate body on the other side, and is in contact with the inner side wall of the second plate body and the inner side wall of the other first plate body, the other end of the abutment plate extends downward along a side wall of the first slide rail body and bends outward, and the second inclined surface is formed on the bending section of the abutment plate.

8. The seat slide rail structure according to claim 6, characterized in that: The lower end of the abutment plate is gradually inclined upward from front to rear.

9. A seat, characterized in that: The invention comprises a seat body and a seat slide rail structure as claimed in any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising the seat as claimed in claim 9.

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