Automobile seat electric sliding rail with anti-stripping function

Abstract

The invention discloses an automobile seat electric sliding rail with an anti-stripping function, and belongs to the technical field of automobile seat components. Which comprises a lower sliding rail, an upper sliding rail which forms a sliding pair with a lower sliding rail through an anti-backlash sliding guide mechanism, a screw rod arranged in a lower sliding rail cavity of the lower sliding rail, and an upper sliding rail driving mechanism which is matched with the screw rod, moves along the screw rod and is fixed with the upper sliding rail, and is characterized by further comprising an anti-stripping mechanism, the bottom of the lower sliding rail in the length direction and the upper portion of one end of the upper sliding rail in the length direction are matched with the anti-stripping mechanism. The system has the advantages that the safety and the overall reliability of the seat system are improved; the rigidity can be improved, and the anti-overturning moment capability can be enhanced, so that the sliding rail can well resist the overturning moment of sliding in a zero-gravity posture, the excellent smoothness can be embodied, the abrasion can be reduced, and the noise can be reduced; good and uniform distribution of loads can be guaranteed, and sliding clamping stagnation or unsmooth feeling caused by lateral deviation can be avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobile seat components, and particularly relates to an automobile seat electric slide rail with anti-peeling function. BACKGROUND

[0002] The aforementioned automobile seat electric slide rail comprises a lower slide rail, an upper slide rail and a middle ball or roller cage. The ideal state of the upper and lower slide rails is that the upper slide rail forms a stable sliding pair with the lower slide rail by means of the ball or roller cage. However, in actual use, the load is relatively complex, for example, there are lateral forces and overturning moments. Specifically, when the automobile turns, the body of the occupant will generate a lateral thrust on the seat; when the occupant leans or the seat bears an asymmetric load, a moment that attempts to "turn over" the upper slide rail will also be generated. Therefore, under the load conditions not limited to the aforementioned examples, the upper slide rail is no longer simply in translation, but has a tendency to side deviation and even side overturning. Side deviation is that the contact force between the guide surface of the upper slide rail and the guide surface of the lower slide rail becomes uneven, for example, one side is pressed tightly, and the other side has a gap. Side overturning or separation is an extreme case, under the action of the overturning moment, the upper slide rail is like a crowbar, and the edge of one side is pried up, resulting in that the rolling body or sliding surface on this side loses contact with the track, which is the aforementioned peeling. Peeling is essentially a destructive physical separation of the mating surfaces.

[0003] As can be known from the above description, the advantages and disadvantages of the anti-peeling strength are causally related to the ability of the entire slide rail sliding pair to resist the tendency of side overturning and separation. Low anti-peeling strength is a fatal defect of the automobile seat electric slide rail, because it will lead to: jamming and abnormal noise, local separation leading to load concentration, accelerated wear, unsmooth sliding and noise; in extreme cases, the side overturning of the upper slide rail out of the track will cause the slide rail to be completely jammed or fail; in extreme working conditions such as collision, the separated slide rail cannot effectively transmit the load, thereby affecting the safety performance of the seat system.

[0004] In addition, for the zero-gravity seat in the car (which is designed on the basis of ergonomics, and realizes a special stretching posture through a precise electromechanical structure, aiming to provide a floating feeling and an extreme comfortable experience), the anti-peeling strength is particularly important, because the zero-gravity seat bears a large overturning moment and an emergency reset impact load, and essentially requires it to resist the large overturning moment brought by the special posture, and to ensure that in the event of a collision, the seat can perform an emergency safety reset action as a solid and reliable whole, so as to play a role in protecting the occupant.

[0005] The applicant has conducted a patent and non-patent literature search, but has not found any technical inspiration that can make the slide rail have good rigidity and excellent anti-peeling strength under the aforementioned extreme conditions, so as to ensure that the upper and lower slide rails form a stable sliding pair. The technical solution to be introduced below is generated against this background. SUMMARY

[0006] The present application has the task to provide an automotive seat electric slide rail with anti-peeling function, which helps to prevent the slide rail assembly from peeling in extreme situations such as impact, collision, torsional deformation, vibration load and accidental unlocking, thereby significantly improving the safety and overall reliability of the seat system, helps to enhance the anti-overturning torque capacity, thereby enabling the slide rail to well resist the overturning torque generated by sliding in the zero-gravity posture and embody excellent smoothness, reduced wear and noise, and facilitates to ensure good uniform distribution of the load, thereby avoiding the sliding jam or harsh feeling caused by lateral deviation.

[0007] The present application is accomplished in such a way that an automotive seat electric slide rail with anti-peeling function comprises a lower slide rail, an upper slide rail constituting a sliding pair with the lower slide rail through an anti-backlash guide mechanism, a screw arranged in a lower slide rail cavity of the lower slide rail, and an upper slide rail driving mechanism cooperating with the screw to move along the screw and being fixed with the upper slide rail, characterized in that it further comprises an anti-peeling mechanism, the bottom of the length direction of the lower slide rail and the upper end of the length direction of the upper slide rail are matched with the anti-peeling mechanism.

[0008] In a specific embodiment of the present application, the anti-peeling mechanism comprises a lower slide rail fixed backing plate located at the bottom of the length direction of the lower slide rail and an anti-peeling clasp plate located at the upper end of the right end of the upper slide rail, and the anti-peeling clasp plate and the lower slide rail fixed backing plate constitute a buckling pair with each other.

[0009] In another specific embodiment of the present application, an n-shaped lower slide rail fixed backing plate front folding edge is folded forward on the upper front side of the lower slide rail fixed backing plate, and an n-shaped lower slide rail fixed backing plate rear folding edge is folded backward on the upper rear side of the lower slide rail fixed backing plate, the lower slide rail fixed backing plate front and rear folding edges each extend from the middle of the length direction of the lower slide rail fixed backing plate to the right end and the folding directions of each other are opposite, a U-shaped anti-peeling clasp plate front folding edge is folded backward on the lower front side of the length direction of the anti-peeling clasp plate, and a U-shaped anti-peeling clasp plate rear folding edge is folded forward on the lower rear side of the length direction of the anti-peeling clasp plate, the anti-peeling clasp plate front folding edge and the lower slide rail fixed backing plate front folding edge constitute a buckling pair with each other, and the anti-peeling clasp plate rear folding edge and the lower slide rail fixed backing plate rear folding edge constitute a buckling pair with each other.

[0010] In another embodiment of the present application, the lower slide rail fixing plate is formed with a lower slide rail fixing plate cavity extending from the left end to the right end of the lower slide rail fixing plate, the cavity opening of the lower slide rail fixing plate cavity faces upward, the bottom of the length direction of the lower slide rail is fixed with the lower slide rail fixing plate cavity bottom wall of the lower slide rail fixing plate cavity, and the front upper portion of the length direction of the lower slide rail is folded toward the direction of the lower slide rail cavity with a lower slide rail front folding edge with an n-shaped cross section, while the rear upper portion of the length direction of the lower slide rail is folded toward the direction of the lower slide rail cavity with a lower slide rail rear folding edge with an n-shaped cross section; the lower portion of the front wall body of the length direction of the upper slide rail is folded upward with an upper slide rail front folding edge with a u-shaped cross section, while the lower portion of the rear wall body of the length direction of the upper slide rail is folded upward with an upper slide rail rear folding edge with a u-shaped cross section, the upper slide rail front folding edge and the lower slide rail front folding edge form a buckling pair with each other, and the upper slide rail rear folding edge and the lower slide rail rear folding edge form a buckling pair with each other; the anti-backlash guide mechanism comprises a front roller holder, front rollers, a rear roller holder, and rear rollers, the front rollers are two groups and are respectively arranged at the left and right ends of the front roller holder, the front roller holder and the front rollers are arranged between the opposite sides of the upper slide rail front folding edge and the lower slide rail front folding edge, the rear rollers are two groups and are respectively arranged at the left and right ends of the rear roller holder, the rear roller holder and the rear rollers are arranged between the opposite sides of the upper slide rail rear folding edge and the lower slide rail rear folding edge; the front rollers and the rear rollers are balls or rollers; an upper slide rail left running limit front limiting foot is formed at the left end of the upper slide rail front folding edge, an upper slide rail right running limit front limiting foot is formed at the right end of the upper slide rail front folding edge, an upper slide rail left running limit rear limiting foot is formed at the left end of the upper slide rail rear folding edge, and an upper slide rail right running limit rear limiting foot is formed at the right end of the upper slide rail rear folding edge, a lower slide rail left blocking foot bulging toward the direction of the lower slide rail cavity is formed at the left end front side and the left end rear side of the lower slide rail and at the left side of the upper slide rail left running limit front and rear limiting feet respectively, and a lower slide rail right blocking foot bulging toward the direction of the lower slide rail cavity is formed at the right end front side and the right end rear side of the lower slide rail and at the right side of the upper slide rail right running limit front and rear limiting feet respectively.

[0011] In another specific embodiment of the present application, a lower slide rail fixed lining cavity is formed in the lower slide rail fixed lining cavity bottom wall of the lower slide rail fixed lining cavity, and a lower slide rail fixed lining cavity fixed hole is formed in the left end and the right end of the lower slide rail fixed lining cavity bottom wall. In use, the lower slide rail fixed lining cavity is fixed to the bottom plate of the vehicle or to the frame laid on the bottom plate of the vehicle by a lower slide rail fixed lining cavity fixed screw at a position corresponding to the lower slide rail fixed lining cavity fixed hole. A lower slide rail riveting hole is formed in the left end, the middle, and the right end of the lower slide rail cavity bottom wall, and the lower slide rail cavity bottom wall of the lower slide rail cavity is riveted to the lower slide rail fixed lining cavity bottom wall by a rivet at a position corresponding to the lower slide rail riveting hole. A lower slide rail positioning column is further provided at the left end of the lower slide rail cavity bottom wall, and a lower slide rail positioning column hole is formed in the left end of the lower slide rail fixed lining cavity bottom wall and at a position corresponding to the lower slide rail positioning column. The lower slide rail positioning column is inserted into the lower slide rail positioning column hole.

[0012] In another specific embodiment of the present application, a screw fixed seat embedding hole is formed in the lower slide rail cavity bottom wall and at a position corresponding to the left end of the screw. A foot accommodating hole is formed in the left end of the lower slide rail fixed lining cavity bottom wall and at a position corresponding to the screw fixed seat embedding hole. The left end of the screw is fixed to the upper part of a screw fixed seat, and the lower part of the screw fixed seat forms a screw fixed seat foot. The screw fixed seat foot is embedded in the screw fixed seat embedding hole, and the bottom of the screw fixed seat foot is inserted into the foot accommodating hole. The right end of the screw is threadedly connected to a screw fixed nut seat. The bottom of the screw fixed nut seat is fixed to the lower slide rail cavity bottom wall by a screw fixed nut seat screw at a position corresponding to a screw fixed nut seat screw hole formed in the lower slide rail cavity bottom wall, and the base of the screw fixed nut seat screw is inserted into a screw fixed nut seat screw base accommodating hole formed in the lower slide rail fixed lining cavity bottom wall.

[0013] In a further specific embodiment of the present invention, a left sliding rail sleeve is provided at the left end of the sliding rail. On the front and rear walls of the left sliding rail sleeve cavity, at corresponding positions, are formed a left sliding rail sleeve elastic locking foot protruding towards the left sliding rail sleeve cavity. On the front and rear side walls of the left end of the sliding rail cavity, at corresponding positions, are formed a left sliding rail sleeve elastic locking foot fitting hole. After the left end of the sliding rail is inserted into the left sliding rail sleeve cavity, the left sliding rail sleeve elastic locking foot engages with the fitting hole. A right sliding rail sleeve is provided at the right end of the sliding rail. On the top wall of the right sliding rail sleeve cavity, a pair of right sliding rail sleeve cavity top wall positioning flanges are formed. A pair of positioning feet extend to the left on the bottom wall of the sheath cavity. A pair of positioning foot holes are provided at the right end of the bottom wall of the lower slide rail fixing liner cavity. A front folded edge positioning flange insertion hole is provided at the top right end of the front folded edge of the lower slide rail fixing liner, corresponding to the position of the front lower slide rail right sheath cavity top wall positioning flange of the pair of lower slide rail right sheath cavity top wall positioning flanges. A rear folded edge positioning flange insertion hole is provided at the top right end of the rear folded edge of the lower slide rail fixing liner, corresponding to the position of the rear lower slide rail right sheath cavity top wall positioning flange of the pair of lower slide rail right sheath cavity top wall positioning flanges. The right end of the lower slide rail is inserted into the sheath cavity of the lower slide rail right sheath. The pair of lower slide rail right sheath cavity top wall positioning flanges are respectively fitted with the front folded edge positioning flange insertion hole and the rear folded edge positioning flange insertion hole, and the pair of positioning feet are fitted with the pair of positioning foot insertion holes.

[0014] In a further specific embodiment of the present invention, a left connecting stud of the upper slide rail seat frame is fixed on the top wall of the upper slide rail and at the left end, while at least a pair of spaced-apart right connecting studs of the upper slide rail seat frame are fixed on the right end. The anti-peeling clamp plate has anti-peeling clamp plate limiting holes in a number equal to the number of right connecting studs of the upper slide rail seat frame at the positions corresponding to the anti-peeling clamp plate limiting holes. The right connecting studs of the upper slide rail seat frame extend above the anti-peeling clamp plate through the anti-peeling clamp plate limiting holes.

[0015] In yet another specific embodiment of the present invention, an upper slide rail drive mechanism fixing cavity is formed at the middle of the upper slide rail along its length and on the top wall, which communicates with the upper slide rail cavity of the upper slide rail. The upper slide rail drive mechanism is fixed to the upper slide rail at a position corresponding to the upper slide rail drive mechanism fixing cavity.

[0016] In yet another specific embodiment of the present invention, the upper slide rail drive mechanism includes a worm gear box holder and a worm gear box. The lower part of the worm gear box holder is inserted into the fixing cavity of the upper slide rail drive mechanism and corresponds to the screw. The upper two sides of the worm gear box holder each have a horizontal fixed wing folded out in opposite directions. These horizontal fixed wings are fixed to horizontal fixed wing fixing screw holes opened on the upper slide rail. The worm gear box is mounted on the worm gear box holder and is driven by the screw. The screw passes through screw clearance holes opened on corresponding positions on both sides of the worm gear box holder. The upper slide rail is mounted on the front wall and rear wall of the upper slide rail. In the region corresponding to the fixed cavity of the upper slide rail drive mechanism, a pair of worm gear box retainer elastic positioning feet are formed at intervals, with corresponding positions and bulging towards the upper slide rail cavity. The pair of worm gear box retainer elastic positioning feet formed on the front wall of the upper slide rail are in contact with the longitudinal front side of the pair of retainers of the worm gear box retainer, while the pair of worm gear box retainer elastic positioning feet formed on the rear wall of the upper slide rail are in contact with the longitudinal rear side of the pair of retainers of the worm gear box retainer. Welding holes are formed on the horizontal fixed wing, and welding material is used to weld the horizontal fixed wing to the top wall of the upper slide rail at the position corresponding to the welding holes. A motor shaft seat fixing foot extends from the front side of the horizontal fixed wing.

[0017] The technical solution provided by this invention employs an anti-peeling mechanism, and by cooperating with the bottom of the lower slide rail along its length and the upper part of one end of the upper slide rail along its length with the anti-peeling mechanism, it helps to prevent the slide rail assembly composed of the upper and lower slide rails from peeling off under extreme conditions such as impact, collision, torsional deformation, vibration, load, and accidental unlocking, thus significantly improving the safety and overall reliability of the seat system; it also helps to improve rigidity and enhance the anti-overturning moment capability, enabling the slide rail to effectively resist the overturning moment of sliding in a zero-gravity posture, and exhibiting excellent smoothness, reducing wear and noise; and it facilitates a good and uniform distribution of load, thus avoiding sliding jamming or stiffness caused by lateral deviation. Attached Figure Description

[0018] Figure 1 This is an assembly structure diagram of the present invention; Figure 2 for Figure 1 A schematic diagram of the anti-peeling mechanism structure system after assembly, showing the lower rail fixing liner and the anti-peeling clamp plate forming a fastening pair. Figure 3 This is a schematic diagram illustrating an application example of the present invention; Figure 4 for Figure 3 The diagram shows the bottom of the motor frame.

[0019] In the diagram: 1. Lower slide rail; 11. Lower slide rail cavity; 111. Lower slide rail rivet hole; 1111. Rivet; 112. Lower slide rail positioning post; 113. Screw fixing seat hole; 114. Screw fixing nut seat screw hole; 115. Lower slide rail left sheath elastic retainer hole; 12. Lower slide rail front fold; 13. Lower slide rail rear fold; 14. Lower slide rail left sheath; 141. Lower slide rail left sheath cavity; 1411. Lower slide rail left sheath elastic retainer; 15. Lower slide rail right sheath; 151. Lower slide rail right sheath cavity; 1511. Lower slide rail right sheath cavity top wall positioning flange; 1512. Positioning retainer; 16. Lower slide rail left stop; 17. Lower slide rail right stop; 2. Upper slide rail; 21. Upper slide rail front fold; 211. 212. Upper slide rail leftward limit front foot, 22. Upper slide rail rightward limit front foot, 23. Upper slide rail rear folded edge, 23. Upper slide rail leftward limit rear foot, 23a. Upper slide rail seat frame left connecting stud, 23b. Upper slide rail seat frame right connecting stud, 24. Upper slide rail drive mechanism fixing cavity, 25. Horizontal fixed wing fixing screw hole, 26. Upper slide rail cavity, 27. Worm gear box retainer elastic positioning foot; 3. Backlash elimination guide mechanism, 31. Front rolling element retainer, 32. Front rolling element, 33. Rear rolling element retainer, 34. Rear rolling element; 4. Screw, 41. Screw fixing seat, 411. Screw fixing seat insert, 4111. Neck, 42. Screw fixing nut seat, 421. Screw fixing nut seat screw, 43. Screw locking nut; 5. 51. Upper slide rail drive mechanism; 511. Worm gear box retainer; 5111. Horizontal fixed wing; 5111. Welding hole; 5112. Motor shaft seat fixing foot; 512. Screw clearance hole; 513. Longitudinal front side of retainer; 514. Longitudinal rear side of retainer; 52. Worm gear box; 521. Worm gear box motor shaft head insertion hole; 6. Anti-peeling mechanism; 61. Lower slide rail fixing liner; 611. Front folded edge of lower slide rail fixing liner; 6111. Front folded edge positioning flange embedded hole; 612. Rear folded edge of lower slide rail fixing liner; 6121. Rear folded edge positioning flange embedded hole; 613. Lower slide rail fixing liner cavity; 614. Bottom wall of lower slide rail fixing liner cavity; 6141. Lower slide rail fixing liner fixing hole; 6142. Lower slide rail positioning post hole; 6143. 6144. Relief hole for foot insertion; 6145. Relief hole for base of screw fixing screw; 62. Anti-peeling clamp plate; 621. Front folded edge of anti-peeling clamp plate; 622. Rear folded edge of anti-peeling clamp plate; 623. Limiting hole of anti-peeling clamp plate; 7. Motor frame; 71. Motor frame connecting plate; 711. Motor frame fixing insertion hole; 72. Motor mounting cavity; 8. Motor; 81. Motor shaft; 811. Motor shaft head. Detailed Implementation

[0020] In order to better understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the present invention. Any formal but not substantive equivalent transformations made based on the concept of the present invention should be considered within the scope of the present invention.

[0021] In the following description, all directional or orientational concepts involving up, down, left, right, front, and back are based on the current direction. Figure 1 The location and state of the object are examples, and therefore should not be construed as a special limitation on the technical solution provided by the present invention.

[0022] Please see Figure 1 The diagram shows a lower slide rail 1, an upper slide rail 2 that forms a sliding pair with the lower slide rail 1 through a backlash-eliminating guide mechanism 3, a screw 4 disposed in the lower slide rail cavity 11 of the lower slide rail 1, and an upper slide rail drive mechanism 5 that cooperates with the screw 4 and moves to the left or right along the screw 4 and is fixed to the upper slide rail 2.

[0023] The key technical point of the technical solution provided by the present invention is that the aforementioned automotive seat electric slide rail with anti-peeling function also includes an anti-peeling mechanism 6, and the bottom of the aforementioned lower slide rail 1 in the length direction and the upper part of one end of the aforementioned upper slide rail 2 in the length direction cooperate with the aforementioned anti-peeling mechanism 6.

[0024] The aforementioned anti-peeling mechanism 6 includes a lower slide rail fixing liner 61 and an anti-peeling clamp plate 62. The lower slide rail fixing liner 61 is located at the bottom of the aforementioned lower slide rail 1 in the length direction, while the anti-peeling clamp plate 62 is located at the upper right end of the aforementioned upper slide rail 2, and the anti-peeling clamp plate 62 and the lower slide rail fixing liner 61 form a fastening pair with each other.

[0025] Please stay tuned. Figure 1A front flange 611 with an n-shaped cross-section is folded forward on the upper front side of the aforementioned lower rail fixing liner 61. A rear flange 612 with the same n-shaped cross-section is folded backward on the upper rear side of the lower rail fixing liner 61. The front and rear flanges 611 and 612 extend from the middle of the lower rail fixing liner 61 along its length to the right end, and their folding directions are opposite. This is further explained by the aforementioned anti-peeling clamp plate 62. A U-shaped front folded edge 621 of an anti-peeling clamp plate is folded backward on the lower front side in the degree direction, and a U-shaped rear folded edge 622 of an anti-peeling clamp plate is folded forward on the lower rear side in the length direction. The aforementioned front folded edge 621 of the anti-peeling clamp plate and the aforementioned front folded edge 611 of the lower slide rail fixing liner form a fastening pair, and the aforementioned rear folded edge 622 of the anti-peeling clamp plate and the aforementioned rear folded edge 612 of the lower slide rail fixing liner form a fastening pair.

[0026] Please see Figure 2 And combined Figure 1 The aforementioned lower rail fixing plate 61 has a lower rail fixing plate cavity 613 extending from the left end to the right end of the lower rail fixing plate 61. The cavity opening of the lower rail fixing plate cavity 613 faces upward. The bottom of the lower rail 1 in the longitudinal direction is fixed to the bottom wall 614 of the lower rail fixing plate cavity 613 within the lower rail fixing plate cavity 613. Furthermore, a lower rail front flange 12 with an n-shaped cross-section is folded out on the upper front side of the lower rail 1 in the longitudinal direction toward the lower rail cavity 11. A rear folded edge 13 of the lower slide rail, with an n-shaped cross-section, is folded upwards on the upper rear side of the upper slide rail 2 along the length direction toward the lower slide rail cavity 11. A front folded edge 21 of the upper slide rail, with a U-shaped cross-section, is folded upwards on the lower part of the front wall of the upper slide rail 2 along the length direction. A rear folded edge 22 of the upper slide rail, with a U-shaped cross-section, is folded upwards on the lower part of the rear wall of the upper slide rail 2 along the length direction. The front folded edge 21 of the upper slide rail and the front folded edge 12 of the lower slide rail form a fastening pair with each other, while the rear folded edge 22 of the upper slide rail and the rear folded edge 13 of the lower slide rail form a fastening pair with each other.

[0027] The aforementioned backlash elimination guide mechanism 3 includes a front rolling element holder 31, a front rolling element 32, a rear rolling element holder 33, and a rear rolling element 34. There are two sets of front rolling elements 32 (each set has multiple elements, such as four to six) and they are respectively disposed at the left and right ends of the front rolling element holder 31. The front rolling element holder 31 and the front rolling elements 32 are disposed together between the front folded edge 21 of the upper slide rail and the front folded edge 12 of the lower slide rail. There are two sets of rear rolling elements 34 (each set has multiple elements, such as four to six) and they are respectively disposed at the left and right ends of the rear rolling element holder 33. The rear rolling element holder 33 and the rear rolling elements 34 are disposed together between the rear folded edge 22 of the upper slide rail and the rear folded edge 13 of the lower slide rail.

[0028] In this embodiment, the aforementioned front rolling element 32 and rear rolling element 34 are balls, but rollers may also be used.

[0029] Depend on Figure 1 As shown, a left limit foot 211 for the leftward movement of the upper slide rail is formed at the left end of the aforementioned front folded edge 21, and a right limit foot 212 for the rightward movement of the upper slide rail is formed at the right end of the front folded edge 21. A left limit foot 221 for the leftward movement of the upper slide rail is formed at the left end of the aforementioned rear folded edge 22, and a right limit foot 221 for the rightward movement of the upper slide rail is formed at the right end of the aforementioned rear folded edge 22 (not shown in the figure). The left front and left rear sides of the aforementioned lower slide rail 1 are also shown in the figure. A left stop foot 16 for the lower slide rail is formed at the left side of the aforementioned upper slide rail front and rear limit feet 211 and 221, respectively, bulging toward the aforementioned lower slide rail cavity 11. A right stop foot 17 for the lower slide rail is formed at the right side of the lower slide rail 1, at the right side of the right front and right rear ends, respectively, corresponding to the right side of the aforementioned upper slide rail front limit foot 212 and upper slide rail rear limit foot (not shown in the figure), respectively, bulging toward the aforementioned lower slide rail cavity 11.

[0030] Undoubtedly, when the upper slide rail 2 moves to the left, and its left and right limit feet 211 and 221 are simultaneously blocked by the left stop foot 16 of the lower slide rail, the upper slide rail 2 cannot move further to the left. Similarly, when the upper slide rail 2 moves to the right, and its right and right limit feet 212 and 221 are simultaneously blocked by the right stop foot 17 of the lower slide rail, the upper slide rail 2 cannot move further to the right. This controls the travel distance of the upper slide rail 2. Specifically, in a vehicle, this controls the forward or backward movement of the car seat.

[0031] Please pay close attention. Figure 1 And combined Figure 2The lower rail fixing liner cavity 613 has lower rail fixing liner fixing holes 6141 at its left and right ends on the bottom wall 614. In use, the lower rail fixing liner 61 is fixed to the vehicle floor (i.e., the car floor) or to the frame laid on the vehicle floor by lower rail fixing liner fixing screws at the positions corresponding to the lower rail fixing liner fixing holes 6141. The lower rail fixing liner 61 is provided at its left, middle and right ends on the bottom wall of the lower rail cavity 11. There is a lower rail rivet hole 111, and the lower rail cavity bottom wall of the lower rail cavity 11 is riveted to the lower rail fixing liner cavity bottom wall 614 by rivets 1111 at the position corresponding to the lower rail rivet hole 111; a lower rail positioning post 112 is also provided at the left end of the lower rail cavity bottom wall, and a lower rail positioning post hole 6142 is opened at the left end of the lower rail fixing liner cavity bottom wall 614 at the position corresponding to the lower rail positioning post 112, and the lower rail positioning post 112 extends into the lower rail positioning post hole 6142.

[0032] A screw fixing seat recess 113 is formed on the bottom wall of the aforementioned lower slide rail cavity 11 at a position corresponding to the left end of the aforementioned screw 4. A foot clearance hole 6143 is formed on the left end of the bottom wall 614 of the aforementioned lower slide rail fixing liner cavity at a position corresponding to the screw fixing seat recess 113. The left end of the aforementioned screw 4 is fixed to the upper part of a screw fixing seat 41 and locked by a screw locking nut 43. The lower part of the screw fixing seat 41 is configured as a screw fixing seat foot 411. The screw fixing seat foot 411 is connected to the front through a neck 4111 formed thereon. The screw fixing seat is fitted into the recess 113 and the bottom of the screw fixing seat recess 411 extends into the recess clearance hole 6143. The right end of the screw 4 is threadedly connected to the screw fixing nut seat 42. The bottom of the screw fixing nut seat 42 is fixed to the bottom wall of the lower slide rail cavity by the screw fixing nut seat screw 421 at the position corresponding to the screw fixing nut seat screw hole 114 opened on the bottom wall of the lower slide rail cavity. The base (also called the tail) of the screw fixing nut seat screw 421 extends into the screw fixing screw base clearance hole 6144 opened on the bottom wall 614 of the lower slide rail fixing liner cavity.

[0033] Please see you again. Figure 1A left sliding rail sleeve 14 is provided at the left end of the aforementioned sliding rail 1. On the front and rear walls of the left sliding rail sleeve cavity 141 of the sliding rail sleeve 14, at corresponding positions, there are corresponding elastic retaining feet 1411 of the left sliding rail sleeve 141 that bulge towards the left sliding rail sleeve cavity 141. On the left side wall of the left end of the sliding rail cavity 11 of the sliding rail 1, at corresponding positions, there are corresponding left sliding rail sleeves. After the left end of the lower slide rail 1 is inserted into the aforementioned left slide rail sleeve cavity 141, the elastic locking foot 1411 of the lower slide rail sleeve engages with the elastic locking foot 115 of the lower slide rail sleeve. A right slide rail sleeve 15 is provided at the right end of the lower slide rail 1. A pair of positioning flanges 1511 are formed on the top wall of the right slide rail sleeve cavity 151 of the right slide rail sleeve 15. A pair of positioning clips extend to the left from the bottom wall of the right slide rail sleeve cavity. Foot 1512, a pair of positioning foot holes 6145 are provided at the right end of the bottom wall 614 of the aforementioned lower slide rail fixing liner cavity. A front folded edge positioning flange insertion hole 6111 is provided at the top right end of the aforementioned lower slide rail fixing liner front folded edge 611 and at the position corresponding to the front lower slide rail right sheath cavity top wall positioning flange 1511 of the aforementioned pair of lower slide rail right sheath cavity top wall positioning flanges. And at the top right end of the aforementioned lower slide rail fixing liner rear folded edge 612 and at the position corresponding to the top wall of the pair of lower slide rail right sheath cavity top wall... A rear-folded positioning flange insertion hole 6121 is provided at the position of the positioning flange on the top wall of the right sleeve cavity of the lower slide rail in the positioning flange 1511. The right end of the aforementioned lower slide rail 1 is inserted into the right sleeve cavity 151 of the right sleeve of the lower slide rail 15. The aforementioned pair of positioning flanges 1511 on the top wall of the right sleeve cavity of the lower slide rail are respectively fitted with the aforementioned front-folded positioning flange insertion hole 6111 and rear-folded positioning flange insertion hole 6121, and the aforementioned pair of positioning feet 1512 are fitted with the aforementioned pair of positioning foot insertion holes 6145.

[0034] On the top wall of the aforementioned upper slide rail 2, at the left end, there is a left connecting stud 23a of the upper slide rail seat frame, and at the right end, there is a pair of spaced-apart right connecting studs 23b of the upper slide rail seat frame. On the aforementioned anti-peeling clamp plate 62, at the position corresponding to the right connecting studs 23b of the upper slide rail seat frame, there are anti-peeling clamp plate limiting holes 623 (in this embodiment, there is a pair) equal in number to the number of right connecting studs 23b of the upper slide rail seat frame. The right connecting studs 23b of the upper slide rail seat frame extend above the anti-peeling clamp plate 62 through the anti-peeling clamp plate limiting holes 623.

[0035] Based on professional knowledge, when setting up a car seat, the car seat frame, such as the seat basin, is fixed to the left connecting studs 23a and 23b of the aforementioned upper sliding rail seat frame.

[0036] Depend on Figure 1 As shown, an upper slide rail drive mechanism fixing cavity 24 is formed in the middle of the length direction of the aforementioned upper slide rail 2 and on the top wall, which communicates with the upper slide rail cavity 2b of the upper slide rail 2. The aforementioned upper slide rail drive mechanism 5 is fixed to the upper slide rail 2 at the position corresponding to the upper slide rail drive mechanism fixing cavity 24.

[0037] The aforementioned upper slide rail drive mechanism 5 includes a worm gear box holder 51 and a worm gear box 52. The lower part of the worm gear box holder 51 is inserted into the aforementioned upper slide rail drive mechanism fixing cavity 24 and corresponds to the aforementioned screw 4. The upper two sides (left and right sides) of the worm gear box holder 51 each have a horizontal fixed wing 511 folded out in opposite directions. The horizontal fixed wing 511 is fixed to the horizontal fixed wing fixing screw hole 25 opened on the upper slide rail 2. The worm gear box 52 is mounted on the worm gear box holder 51 and is driven by the screw 4. The screw 4 passes through screw clearance holes 512 opened on both sides of the worm gear box holder 51 at corresponding positions. The upper slide rail 2 has a front wall and a rear wall, and the upper slide rail is also connected to the aforementioned upper slide rail drive mechanism. Each region of the fixed cavity 24 of the moving mechanism is provided with a pair of worm gear box retainer elastic positioning feet 27 that are bulging towards the upper slide rail cavity 26 and are positioned in a spaced manner. The pair of worm gear box retainer elastic positioning feet 27 formed on the front wall of the upper slide rail contacts the pair of longitudinal front sides 513 of the worm gear box retainer 51, while the pair of worm gear box retainer elastic positioning feet 27 formed on the rear wall of the upper slide rail contacts the pair of longitudinal rear sides 514 of the worm gear box retainer 51. A welding hole 5111 is formed on the aforementioned horizontal fixed wing 511. The horizontal fixed wing 511 is welded to the top wall of the aforementioned upper slide rail 2 by welding material at the position corresponding to the welding hole 5111. A motor shaft seat fixing foot 5112 extends from the front side of the horizontal fixed wing 511.

[0038] Please see Figure 3 and Figure 4 Based on professional knowledge, for every car seat, a pair of seats should be provided. Figure 1The present invention, as shown, features an anti-peeling electric slide rail for automotive seats, and the motor frame 7 connects the components to each other. At each end of the motor frame 7, a motor frame connecting plate 71 is formed. A pair of motor frame fixing insertion holes 711 are formed on the motor frame connecting plate 71. The aforementioned motor shaft mounting feet 5112, acting like the forklift arm of a forklift, are inserted into the motor frame fixing insertion holes 711, thereby fixing the motor frame connecting plate 71 to the worm gear box retainer 51 of the aforementioned upper slide rail drive mechanism 5. A motor 8, serving as a power source and having forward and reverse rotation functions, is horizontally mounted in a motor mounting cavity 72 formed on the motor frame 7. The motor shaft heads 811 of the pair of motor shafts 81 of the motor 8 (… Figure 4 (Shown) The worm gearbox motor shaft head extends into hole 521 from the worm gearbox 52. Figure 1 (See diagram) The worm wheel is inserted into the worm gear box 52 and connected to the worm gear inside the worm gear box 52 (transmission engagement). Since the worm wheel in the worm gear box 52 is engaged with the aforementioned worm gear, and the worm gear drives the worm wheel, and since the aforementioned worm wheel is engaged with the screw 4, the worm wheel can move to the left or right along the screw 4.

[0039] Since the mechanism of the movement of the upper slide rail 2 relative to the lower slide rail 1 is a conventional technology and is frequently seen in published Chinese and foreign patent documents, the applicant will only provide a brief description below. When the motor 8 operates, for example, clockwise, the motor shaft head 811 of the motor shaft 81 drives the aforementioned worm gear, which in turn drives the worm wheel, causing the worm wheel to move to the right along the screw 4. This, in turn, moves the upper slide rail 2 to the right via the worm gear box retainer 51. Conversely, when the motor 8 operates in the opposite direction, such as counterclockwise, the worm wheel moves to the left along the screw 4, which, in turn, moves the upper slide rail 2 to the left via the worm gear box retainer 51. The clockwise / counterclockwise operation of the aforementioned motor 8 ultimately enables the car seat, which is fixedly connected to the upper slide rail 2 in use, to be adjusted forward or backward (based on the occupant's seating position). The electrical switch controlling whether the motor 8 operates is usually located on the car seat armrest.

[0040] When the vehicle is in motion and encounters the many extreme situations mentioned by the applicant in the background technology section above, the anti-peeling mechanism 6 enables the slide rail to perform excellent anti-peeling function.

[0041] In summary, the technical solution provided by this invention makes up for the shortcomings of the prior art, successfully completes the invention task, and accurately realizes the technical effects described by the applicant in the above technical effects column.

Claims

1. An electric sliding rail for a car seat with anti-peeling function, comprising a lower rail (1), an upper rail (2) forming a sliding pair with the lower rail (1) via a backlash-eliminating guide mechanism (3), a screw (4) disposed in the lower rail cavity (11) of the lower rail (1), and an upper rail drive mechanism (5) cooperating with the screw (4) and moving along the screw (4) and fixed to the upper rail (2), characterized in that: It also includes an anti-peeling mechanism (6), the bottom of the lower slide rail (1) in the length direction and the upper part of one end of the upper slide rail (2) in the length direction cooperate with the anti-peeling mechanism (6).

2. The electric slide rail for automotive seats with anti-peeling function according to claim 1, characterized in that: The anti-peeling mechanism (6) includes a lower slide rail fixing liner (61) and an anti-peeling clamp plate (62). The lower slide rail fixing liner (61) is located at the bottom of the lower slide rail (1) along its length, while the anti-peeling clamp plate (62) is located at the upper right end of the upper slide rail (2). The anti-peeling clamp plate (62) and the lower slide rail fixing liner (61) form a fastening pair.

3. The electric slide rail for automotive seats with anti-peeling function according to claim 2, characterized in that: A front flange (611) with an n-shaped cross-section is folded forward on the upper front side of the sliding rail fixing liner (61), and a rear flange (612) with the same n-shaped cross-section is folded backward on the upper rear side of the sliding rail fixing liner (61). The front and rear flanges (611, 612) extend from the middle of the length direction of the sliding rail fixing liner (61) to the right end, and their folding directions are opposite to each other. A U-shaped front fold (621) of an anti-peeling clamp plate is folded back on the lower front side in the degree direction, and a U-shaped rear fold (622) of the anti-peeling clamp plate is folded forward on the lower rear side in the length direction. The front fold (621) of the anti-peeling clamp plate and the front fold (611) of the lower slide rail fixing liner form a fastening pair, and the rear fold (622) of the anti-peeling clamp plate and the rear fold (612) of the lower slide rail fixing liner form a fastening pair.

4. The electric slide rail for automotive seats with anti-peeling function according to claim 2, characterized in that: The lower rail fixing liner (61) comprises a lower rail fixing liner cavity (613) extending from the left end to the right end of the lower rail fixing liner (61). The cavity opening of the lower rail fixing liner cavity (613) faces upward. The bottom of the lower rail (1) in the longitudinal direction is fixed to the bottom wall (614) of the lower rail fixing liner cavity (613) within the lower rail fixing liner cavity (613), and the upper front part of the lower rail (1) in the longitudinal direction faces the lower rail cavity (614). 1) A sliding rail front fold (12) with an n-shaped cross-section is folded out in the direction of the sliding rail (1), and a sliding rail rear fold (13) with the same n-shaped cross-section is folded out on the upper rear side of the sliding rail (1) towards the sliding rail cavity (11) in the direction of the length of the sliding rail (1); the upper sliding rail front fold (21) with a U-shaped cross-section is folded out on the lower part of the front wall of the upper sliding rail (2) in the direction of the length of the sliding rail (2), and a sliding rail rear fold (13) with the same n-shaped cross-section is folded out on the lower part of the rear wall of the upper sliding rail (2) in the direction of the length of the ... The upper slide rail has a U-shaped rear folded edge (22), and the upper slide rail has a front folded edge (21) that forms a fastening pair with the lower slide rail's front folded edge (12). The upper slide rail has a rear folded edge (22) that forms a fastening pair with the lower slide rail's rear folded edge (13). The backlash-eliminating guide mechanism (3) includes a front rolling element holder (31), a front rolling element (32), a rear rolling element holder (33), and a rear rolling element (34). There are two sets of front rolling elements (32), which are respectively located at the left and right ends of the front rolling element holder (31). The front rolling elements are controlled by the front rolling elements. The component retainer (31) together with the front rolling element (32) is disposed between the front fold (21) of the upper slide rail and the front fold (12) of the lower slide rail on opposite sides. There are two sets of rear rolling elements (34) and they are respectively disposed at the left and right ends of the rear rolling element retainer (33). The rear rolling element retainer (33) together with the rear rolling elements (34) is disposed between the rear fold (22) of the upper slide rail and the rear fold (13) of the lower slide rail on opposite sides. The front rolling element (32) and the rear rolling element (34) are balls or rollers.A left limit foot (211) for the leftward movement of the upper slide rail is formed at the left end of the front fold (21) of the upper slide rail, and a right limit foot (212) for the rightward movement of the upper slide rail is formed at the right end of the front fold (21) of the upper slide rail. A left limit foot (221) for the leftward movement of the upper slide rail is formed at the left end of the rear fold (22) of the upper slide rail, and a right limit foot (22) for the rightward movement of the upper slide rail is formed at the right end of the rear fold (22) of the upper slide rail. The left front and left rear sides of the lower slide rail (1) are also provided with this feature. A left stop (16) for the lower slide rail is formed at a position to the left of the front and rear limiting feet (211, 221) of the upper slide rail, respectively, protruding towards the lower slide rail cavity (11). A right stop (17) for the lower slide rail is formed at a position to the right of the front limiting foot (212) and the rear limiting foot (212) of the upper slide rail, respectively, protruding towards the lower slide rail cavity (11).

5. The electric slide rail for automotive seats with anti-peeling function according to claim 4, characterized in that: A sliding rail fixing plate fixing hole (6141) is provided at the left and right ends of the bottom wall (614) of the sliding rail fixing plate cavity (613). In use, the sliding rail fixing plate (61) is fixed to the vehicle floor or the frame laid on the vehicle floor by the sliding rail fixing plate fixing screw at the position corresponding to the sliding rail fixing plate fixing hole (6141). A sliding rail riveting hole (1) is provided at the left, middle and right ends of the bottom wall of the sliding rail cavity (11). 11) The bottom wall of the lower slide rail cavity (11) is riveted to the bottom wall of the lower slide rail fixing liner cavity (614) by rivets (1111) at the position corresponding to the lower slide rail fixing hole (111); a lower slide rail positioning post (112) is also provided at the left end of the bottom wall of the lower slide rail cavity, and a lower slide rail positioning post hole (6142) is opened at the left end of the bottom wall of the lower slide rail fixing liner cavity (614) at the position corresponding to the lower slide rail positioning post (112), and the lower slide rail positioning post (112) is inserted into the lower slide rail positioning post hole (6142).

6. The electric slide rail for automotive seats with anti-peeling function according to claim 4, characterized in that: A screw fixing seat recess (113) is provided on the bottom wall of the lower slide rail cavity (11) at a position corresponding to the left end of the screw (4). A foot clearance hole (6143) is provided on the left end of the bottom wall (614) of the lower slide rail fixing liner cavity at a position corresponding to the screw fixing seat recess (113). The left end of the screw (4) is fixed to the upper part of a screw fixing seat (41), and the lower part of the screw fixing seat (41) is configured as a screw fixing seat foot (411). The screw fixing seat foot (411) and the screw fixing seat recess (113) are connected. 13) The bottom of the screw fixing seat insert (411) is inserted into the insert clearance hole (6143), the right end of the screw (4) is threadedly connected to the screw fixing nut seat (42), the bottom of the screw fixing nut seat (42) is fixed to the bottom wall of the lower slide rail cavity by the screw fixing nut seat screw (421) at the position corresponding to the screw fixing nut seat screw hole (114) opened on the bottom wall of the lower slide rail cavity, and the base of the screw fixing nut seat screw (421) is inserted into the screw fixing screw base clearance hole (6144) opened on the bottom wall (614) of the lower slide rail fixing liner cavity.

7. The electric slide rail for automotive seats with anti-peeling function according to claim 4, characterized in that: A left sliding rail sleeve (14) is provided at the left end of the sliding rail (1). On the front cavity wall and the rear cavity wall of the left sliding rail sleeve cavity (141) of the left sliding rail sleeve (14), a left sliding rail sleeve elastic locking foot (1411) bulging towards the left sliding rail sleeve cavity (141) is formed at a corresponding position. On the front side wall and the rear side wall of the left end of the sliding rail cavity (11) of the sliding rail (1), a left sliding rail sleeve is formed at a corresponding position. The elastic locking foot (115) is inserted into the left sleeve cavity (141) of the lower slide rail (1) at the left end, and the elastic locking foot (1411) of the lower slide rail (1) fits into the elastic locking foot (115) of the lower slide rail (1); a right sleeve (15) of the lower slide rail (1) is provided at the right end, and a pair of positioning flanges (1511) are formed on the top wall of the right sleeve cavity (151) of the lower slide rail (15), and a pair of positioning flanges (1511) extend to the left on the bottom wall of the right sleeve cavity. A pair of positioning locking feet (6145) are provided at the right end of the bottom wall (614) of the lower slide rail fixing liner cavity. A front folded edge positioning flange embedding hole (6111) is provided at the top right end of the front folded edge (611) of the lower slide rail fixing liner cavity, corresponding to the position of the front lower slide rail right sheath cavity top wall positioning flange (1511) of the pair of lower slide rail right sheath cavity top wall positioning flanges. A front folded edge positioning flange embedding hole (6111) is provided at the top right end of the rear folded edge (612) of the lower slide rail fixing liner cavity, corresponding to the position of the front lower slide rail right sheath cavity top wall positioning flange. A rear folded edge positioning flange insertion hole (6121) is provided at the position of the rear right sheath cavity positioning flange of the lower slide rail (1). The right end of the lower slide rail (1) is inserted into the sheath cavity (151) of the right sheath of the lower slide rail (15). The pair of right sheath cavity top wall positioning flanges (1511) of the lower slide rail are respectively fitted with the front folded edge positioning flange insertion hole (6111) and the rear folded edge positioning flange insertion hole (6121), and the pair of positioning feet (1512) are fitted with the pair of positioning foot insertion holes (6145).

8. The electric slide rail for automotive seats with anti-peeling function according to claim 2, characterized in that: On the top wall of the upper slide rail (2) and at the left end, there is a left connecting stud (23a) of the upper slide rail seat frame, and at the right end, there is at least one pair of right connecting studs (23b) of the upper slide rail seat frame that are spaced apart from each other. On the anti-peeling clamp plate (62), at the position corresponding to the right connecting stud (23b) of the upper slide rail seat frame, there are anti-peeling clamp plate limiting holes (623) in the same number as the number of right connecting studs (23b) of the upper slide rail seat frame. The right connecting studs (23b) of the upper slide rail seat frame extend above the anti-peeling clamp plate (62) through the anti-peeling clamp plate limiting holes (623).

9. The electric slide rail for automotive seats with anti-peeling function according to claim 2, characterized in that: An upper slide rail drive mechanism fixing cavity (24) is provided at the middle of the length direction of the upper slide rail (2) and on the top wall, which communicates with the upper slide rail cavity (2b) of the upper slide rail (2). The upper slide rail drive mechanism (5) is fixed to the upper slide rail (2) at a position corresponding to the upper slide rail drive mechanism fixing cavity (24).

10. The electric slide rail for automotive seats with anti-peeling function according to claim 9, characterized in that: The upper slide rail drive mechanism (5) includes a worm gear box holder (51) and a worm gear box (52). The lower part of the worm gear box holder (51) is inserted into the upper slide rail drive mechanism fixing cavity (24) and corresponds to the screw (4). The upper part of the worm gear box holder (51) has a horizontal fixed wing (511) folded on both sides in opposite directions. The horizontal fixed wing (511) is fixed with the horizontal fixed wing fixing screw hole (25) opened on the upper slide rail (2). The worm gear box (52) is set on the worm gear box holder (51) and the worm gear box (52) is driven by the screw (4). The screw (4) passes through the screw clearance hole (512) opened on both sides of the worm gear box holder (51). On the upper slide rail front wall and upper slide rail rear wall of the upper slide rail (2) and corresponding to the upper slide rail Each region of the drive mechanism fixed cavity (24) is provided with a pair of worm gear box retainer elastic positioning feet (27) that are positioned opposite each other and bulge toward the upper slide rail cavity (26). The pair of worm gear box retainer elastic positioning feet (27) formed on the front wall of the upper slide rail contacts the pair of longitudinal front sides (513) of the worm gear box retainer (51), while the pair of worm gear box retainer elastic positioning feet (27) formed on the rear wall of the upper slide rail contacts the pair of longitudinal rear sides (514) of the worm gear box retainer (51). A welding hole (5111) is formed on the horizontal fixed wing (511), and the horizontal fixed wing (511) is welded to the top wall of the upper slide rail (2) by welding material at the position corresponding to the welding hole (5111). A motor shaft seat fixing foot (5112) extends from the front side of the horizontal fixed wing (511).

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