Automobile seat slide rail structure

Abstract

The application discloses a kind of automobile seat slide rail structures, it is related to the technical field of automobile accessories, it includes outer rail, inner rail, rocker mechanism and guiding limiting mechanism;Rocker mechanism includes the rod body being arranged in inner rail, the proximal end of rod body is connected with crank after extending out of inner rail, the distal end of rod body is provided with locking plate and torsion spring;The side of locking plate is connected with rod body, the other side of locking plate is provided with several clamping teeth;The side wall of outer rail is provided with locking hole compatible with clamping tooth;Guiding limiting mechanism includes fixed plate, limiting pin and limiting block;Fixed plate is arranged in inner rail and below rod body, the middle part of fixed plate is provided with guiding slot along the axial direction of inner rail;The lower end of limiting pin is connected with the inner bottom wall of outer rail, the upper end of limiting pin is passed through guiding slot and then abuts on rod body;Limiting block is provided with through hole for rod body to pass through, and the upper end of limiting block is connected with inner rail, the lower end of limiting block is connected with fixed plate;Limiting pin and limiting block are made of rubber material.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically to an automotive seat slide rail structure. Background Technology

[0002] As we all know, car seats can move forward and backward, and left and right, mainly through seat rails. Seat rails are widely used in various types of car seats and are functional devices for adjusting the forward, backward, left and right positions of the seats.

[0003] Most current car seat rails use a rocker-type locking mechanism. Simply press down gently with your finger on one end of the crank. Through the transmission of force, the rocker will overcome the reaction force of the locking torsion spring, rotate around the axis and drive the locking plate to rotate down synchronously with the crank by the corresponding angle, thereby opening the inner and outer rail locking state and realizing the movement of the seat.

[0004] However, with increased use, the joystick is prone to deformation and abnormal noise during rotation, which seriously affects the user experience. Summary of the Invention

[0005] In view of the deficiencies in the existing technology, the purpose of this invention is to provide an automotive seat slide rail structure that can prevent the rocker arm from deforming and making abnormal noises during rotation.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a car seat slide rail structure, including an outer rail and an inner rail fitted inside the outer rail, the inner rail being slidable along the length direction of the outer rail, and further including a rocker mechanism and a guide limiting mechanism; the rocker mechanism includes a rod body disposed within the inner rail, the proximal end of the rod body extending out of the inner rail and connected to a crank, and the distal end of the rod body being provided with a locking plate and a torsion spring; one side of the locking plate is connected to the rod body, and the other side of the locking plate is provided with several locking teeth; the sidewall of the outer rail is provided with... The guide limiting mechanism includes a fixed plate, a limiting pin, and a limiting block. The fixed plate is located inside the inner rail and below the rod body. A guide groove is formed in the middle of the fixed plate along the axial direction of the inner rail. The lower end of the limiting pin is connected to the inner bottom wall of the outer rail, and the upper end of the limiting pin passes through the guide groove and abuts against the rod body. The limiting block has a through hole for the rod body to pass through, and the upper end of the limiting block is connected to the inner rail, and the lower end of the limiting block is connected to the fixed plate. Both the limiting pin and the limiting block are made of rubber material.

[0007] Based on the above technical solution, the lower end of the limiting pin passes through the outer rail and is connected to an adjustment knob, which is used to adjust the supporting force of the limiting pin on the rod.

[0008] Based on the above technical solution, the upper end of the limiting block is provided with a boss, which is embedded in the inner top wall of the inner rail.

[0009] Based on the above technical solution, the guide groove is provided with reinforcing ribs at its edge; the fixing plate is provided with connecting holes for connecting the inner rail.

[0010] Based on the above technical solution, an arc-shaped return part is provided at the connection between the crank and the rod body; a lever is provided at the free end of the crank.

[0011] Based on the above technical solution, a reinforcing block is provided between the locking plate and the rod.

[0012] Based on the above technical solution, mounting screws are provided at both ends of the bottom of the outer rail, and mounting holes are provided at the bottom of the outer rail opposite to the limiting pin.

[0013] Based on the above technical solution, the inner rail sidewall is provided with guide holes and grooves that are compatible with the locking teeth.

[0014] Based on the above technical solution, studs and positioning pins are provided at both ends of the top of the inner rail, and a support is provided at the middle of the top of the inner rail.

[0015] Based on the above technical solution, a plurality of sliding supports are provided between the outer rail and the inner rail; the sliding support includes a vertical plate, the upper end of the vertical plate is inclined inwardly with a first inclined plate, the first inclined plate is rotatably engaged with a first ball bearing; the lower end of the vertical plate is inclined inwardly with a second inclined plate, the second inclined plate is rotatably engaged with a second ball bearing.

[0016] The beneficial effects of this invention are as follows:

[0017] By setting a limiting pin and a limiting block, this invention can effectively prevent the rocker arm from deforming and making abnormal noises during rotation. Attached Figure Description

[0018] Figure 1 This is a perspective view of the car seat slide rail structure in an embodiment of the present invention;

[0019] Figure 2 This is an exploded view of the car seat slide rail structure in an embodiment of the present invention;

[0020] Figure 3 This is a rear view of the car seat slide rail structure in an embodiment of the present invention;

[0021] Figure 4 This is a top view of the car seat slide rail structure in an embodiment of the present invention;

[0022] Figure 5 for Figure 4 Sectional view along the middle AA direction;

[0023] Figure 6 for Figure 4 Sectional view along the BB direction;

[0024] Figure 7 for Figure 4 A cross-sectional view along the CC direction;

[0025] Figure 8 This is a side view of the car seat slide rail structure in an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the outer rail structure in an embodiment of the present invention;

[0027] Figure 10 This is a cross-sectional view of the outer rail in an embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of the inner rail structure in an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram showing the connection between the rocker mechanism and the guide limiting mechanism in an embodiment of the present invention;

[0030] Figure 13 This is a schematic diagram of the rocker mechanism in an embodiment of the present invention;

[0031] Figure 14 This is a schematic diagram of the guide and limiting mechanism in an embodiment of the present invention;

[0032] Figure 15 This is a schematic diagram of the sliding support structure in an embodiment of the present invention;

[0033] Figure label:

[0034] 1-Outer rail; 11-Locking hole; 12-Mounting screw; 13-Mounting hole;

[0035] 2-Inner rail; 21-Guide hole groove; 22-Support; 23-Stud; 24-Positioning pin;

[0036] 3-Rock lever mechanism; 31-Lever body; 32-Crank; 33-Pulley; 34-Return mechanism; 35-Locking plate; 36-Clamping tooth; 37-Reinforcing block; 38-Torsion spring;

[0037] 4-Guide limiting mechanism; 41-Fixing plate; 42-Connecting hole; 43-Guide groove; 44-Reinforcing rib; 45-Limiting pin; 46-Adjusting knob; 47-Limiting block; 48-Through hole; 49-Boss;

[0038] 5-Sliding bracket; 51-Vertical plate; 52-First inclined plate; 53-First ball bearing; 54-Second inclined plate; 55-Second ball bearing. Detailed Implementation

[0039] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0040] In the description of this invention, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this invention, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0042] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and its beneficial effects clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the invention.

[0043] See Figures 1-9 As shown, this embodiment of the invention provides a car seat slide rail structure, including an outer rail 1 and an inner rail 2 fitted inside the outer rail 1. The inner rail 2 can slide along the length direction of the outer rail 1. The car seat slide rail structure also includes a rocker mechanism 3 and a guide limiting mechanism 4.

[0044] See Figure 12 and Figure 13 As shown, the rocker mechanism 3 includes a rod 31 disposed within the inner rail 2. The proximal end of the rod 31 extends out of the inner rail 2 and is connected to a crank 32. The distal end of the rod 31 is provided with a locking plate 35 and a torsion spring 38. One side of the locking plate 35 is connected to the rod 31, and the other side of the locking plate 35 is provided with several locking teeth 36. The side wall of the outer rail 1 is provided with locking holes 11 that are adapted to the locking teeth 36. Specifically, an arc-shaped return part 34 is provided at the connection between the crank 32 and the rod 31. A lever 33 is provided at the free end of the crank 32. A reinforcing block 37 is provided between the locking plate 35 and the rod 31.

[0045] See Figure 12 and Figure 14 As shown, the guide limiting mechanism 4 includes a fixed plate 41, a limiting pin 45, and a limiting block 47. The fixed plate 41 is disposed inside the inner rail 2 and located below the rod 31. A guide groove 43 is formed in the middle of the fixed plate 41 along the axial direction of the inner rail 2. The lower end of the limiting pin 45 is connected to the inner bottom wall of the outer rail 1, and the upper end of the limiting pin 45 passes through the guide groove 43 and abuts against the rod 31. The limiting block 47 has a through hole 48 for the rod 31 to pass through, and the upper end of the limiting block 47 is connected to the inner rail 2, while the lower end of the limiting block 47 is connected to the fixed plate 41. Both the limiting pin 45 and the limiting block 47 are made of rubber. Specifically, the lower end of the limiting pin 45 passes through the outer rail 1 and is connected to an adjusting knob 46, which is used to adjust the holding force of the limiting pin 45 against the rod 31. The upper end of the limiting block 47 is provided with a boss 49, which is embedded in the inner top wall of the inner rail 2. The edge of the guide groove 43 is provided with a reinforcing rib 44; the fixing plate 41 is provided with a connecting hole 42 for connecting the inner rail 2.

[0046] See Figure 9 and Figure 10 As shown, mounting screws 12 are provided at both ends of the bottom of the outer rail 1, and mounting holes 13 are provided at the bottom of the outer rail 1 opposite to the limit pin 45.

[0047] See Figure 11 As shown, the inner rail 2 has guide slots 21 on its sidewalls that are adapted to the locking teeth 36. Specifically, both ends of the top of the inner rail 2 are provided with studs 23 and positioning pins 24, and a support 22 is provided in the middle of the top of the inner rail 2.

[0048] See Figure 15 As shown, a plurality of sliding brackets 5 are provided between the outer rail 1 and the inner rail 2; the sliding brackets 5 include a vertical plate 51, the upper end of the vertical plate 51 is inclined inwardly with a first inclined plate 52, the first inclined plate 52 is rotatably engaged with a first ball bearing 53; the lower end of the vertical plate 51 is inclined inwardly with a second inclined plate 54, the second inclined plate 54 is rotatably engaged with a second ball bearing 55.

[0049] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] This invention is not limited to the embodiments described above. Those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention. Contents not described in detail in this specification are prior art known to those skilled in the art.

Claims

1. An automobile seat slide rail structure comprising an outer rail (1) and an inner rail (2) which is fitted in the outer rail (1) and is slidable in the length direction of the outer rail (1), characterized in that: It also includes a rocker mechanism (3) and a guide limiting mechanism (4); The rocker mechanism (3) includes a rod body (31) arranged in the inner rail (2), the proximal end of the rod body (31) is connected with a crank (32) after extending out of the inner rail (2), the distal end of the rod body (31) is provided with a locking plate (35) and a torsional spring (38); one side of the locking plate (35) is connected with the rod body (31), the other side of the locking plate (35) is provided with a plurality of clamping teeth (36); the side wall of the outer rail (1) is provided with a locking hole (11) matched with the clamping teeth (36); The guide limiting mechanism (4) includes a fixed plate (41), a limiting pin (45) and a limiting block (47); the fixed plate (41) is arranged in the inner rail (2) and below the rod body (31), the middle part of the fixed plate (41) is provided with a guide groove (43) along the axial direction of the inner rail (2); the lower end of the limiting pin (45) is connected with the inner bottom wall of the outer rail (1), the upper end of the limiting pin (45) is abutted against the rod body (31) after passing through the guide groove (43); the limiting block (47) is provided with a through hole (48) for the rod body (31) to pass through, and the upper end of the limiting block (47) is connected with the inner rail (2), and the lower end of the limiting block (47) is connected with the fixed plate (41); The limiting pin (45) and the limiting block (47) are both made of rubber material; The lower end of the limiting pin (45) is connected with an adjusting knob (46) after passing through the outer rail (1), and the adjusting knob (46) is used for adjusting the abutting force of the limiting pin (45) on the rod body (31).

2. The automobile seat slide rail structure according to claim 1, characterized by: The upper end of the limiting block (47) is provided with a boss (49) embedded in the inner top wall of the inner rail (2).

3. The automobile seat slide rail structure according to claim 1, wherein: The edge of the guide groove (43) is provided with a reinforcing rib (44); the fixed plate (41) is provided with a connecting hole (42) for connecting the inner rail (2).

4. The automobile seat slide rail structure according to claim 1, wherein: The connecting part of the crank (32) and the rod body (31) is provided with an arc-shaped return part (34); the free end of the crank (32) is provided with a lever (33).

5. The automobile seat slide rail structure according to claim 1, wherein: The locking plate (35) and the rod body (31) are provided with a reinforcing block (37) therebetween.

6. The automobile seat slide rail structure according to claim 1, wherein: The bottom of the outer rail (1) is provided with mounting screws (12) at both ends, and the bottom of the outer rail (1) is provided with a mounting hole (13) at a position opposite to the limiting pin (45).

7. The automobile seat slide rail structure according to claim 1, wherein: The side wall of the inner rail (2) is provided with a guide hole slot (21) matched with the clamping teeth (36).

8. The automobile seat slide rail structure according to claim 1, wherein: The top of the inner rail (2) is provided with a stud (23) and a positioning pin (24) at both ends, and the top of the inner rail (2) is provided with a support (22) at the middle part.

9. The automobile seat slide rail structure according to claim 1, wherein: A plurality of sliding supports (5) are arranged between the outer rail (1) and the inner rail (2); the sliding support (5) includes a vertical plate (51), the upper end of the vertical plate (51) is inwardly inclined to be provided with a first inclined plate (52), the first inclined plate (52) is rollably connected with a first ball (53); the lower end of the vertical plate (51) is inwardly inclined to be provided with a second inclined plate (54), the second inclined plate (54) is rollably connected with a second ball (55).

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