Automatic adjusting sliding rail of automobile seat and automobile seat with automatic adjusting sliding rail

Abstract

The invention discloses an automobile seat automatic adjusting sliding rail and an automobile seat thereof, and belongs to the technical field of automobile parts. Comprising a static sliding rail, and the static sliding rail comprises a static sliding rail fixing bottom plate, a static sliding rail front side wall and a static sliding rail rear side wall; a movable sliding rail front edge folding groove and a movable sliding rail rear edge folding groove are formed in the movable sliding rail, and the bottoms of the left end and the right end of the movable sliding rail are each provided with a pair of Z-direction gap eliminating idler wheels; the seat basin connecting plate is connected to the upper part of the movable sliding rail; the screw rod is arranged in the static slide rail cavity; the movable sliding rail automatic displacement driving mechanism is matched with the seat basin connecting plate, the movable sliding rail and the screw rod; the device is characterized in that front clearance eliminating mechanisms are arranged at the left end and the right end of the building wall corresponding to the front edge folding groove of the movable sliding rail respectively, and rear clearance eliminating mechanisms are arranged at the left end and the right end of the building wall corresponding to the rear edge folding groove of the movable sliding rail respectively; a pair of movable sliding rail guide mechanisms is arranged on the downward side of the middle of the movable sliding rail. The device has the advantages of simplifying the overall structure and facilitating manufacturing and assembling; the all-around excellent anti-backlash effect is embodied; the service life is long.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts, and in particular relates to an automatic adjustment slide rail for an automobile seat, and also relates to an automobile seat thereof. Background Art

[0002] The car seat slide rail is an indispensable and important part of the structural system of the car seat. It not only fixes the car seat, but also adjusts the car seat forward or backward as needed, and it also affects factors such as the safety of passengers.

[0003] There are two main ways to adjust the slide rails of car seats: manual adjustment and automatic adjustment (also known as "electric adjustment"). As for the former, manual adjustment is usually achieved by operating the control lever or handle under the seat. The driver or passenger needs to pull out or press the control lever and move the seat forward or backward until it reaches the desired position; as for the latter, automatic adjustment is usually achieved by operating the electric control button on the side of the seat. The driver or passenger only needs to press the corresponding button, and the seat will automatically move forward or backward until it reaches the desired position.

[0004] Compared with the aforementioned manual adjustment, automatic adjustment has the following advantages which are not limited to the following: improving the convenience of getting on and off the vehicle; enhancing the comfort of passengers, especially the driver; reflecting good memory function; adapting to different riding scenarios, etc.

[0005] In the public patent documents, there is no shortage of technical information on automatic seat adjustment slides, such as: CN215204537U (a high-strength independent electric slide), CN116022040B (an electric slide drive mechanism for vehicle seats), CN113320450A (an electric slide for car seats) and CN118082637A (a new type of horizontal adjustment transmission vehicle seat slide assembly), etc.

[0006] As is known in the industry, the structural system of the slide rails of the car seat includes a movable slide rail and a static slide rail. The movable slide rail is also called the inner slide rail or the upper slide rail, and the static slide rail is also called the outer slide rail or the lower slide rail. In use, the movable slide rail and the static slide rail form a sliding pair. The seat of the car seat is connected to the movable slide rail through the seat basin, and the static slide rail is fixed to the vehicle's compartment floor. Under the operation of the driving mechanism, the driving mechanism drives the movable slide rail connected to it to move, so that the movable slide rail drives the aforementioned seat basin connected to it to move forward or backward, so as to achieve the purpose of adjusting the position of the car seat.

[0007] As is known in the industry, since there is a gap between the sliding surfaces or mating surfaces of the aforementioned moving and static slide rails, and in order to ensure the smoothness of the sliding of the moving slide rail relative to the static slide rail, it is necessary to technically process the aforementioned gap through relatively reasonable and feasible technical means. The relevant technical information can also be found in the disclosed patent documents, such as: "A gap elimination structure for a long slide rail of a vehicle seat" recommended by CN115593282A. This patent is intended to eliminate the gap between the moving slide rail (referred to as "upper slide rail" in the patent) through a gap elimination mechanism composed of a main body, a gap adjustment plate, an adjustment wheel and an elastic member. ) and the static slide rail (referred to as "lower rail" in the patent). Specifically, the gap between the movable slide rail and the static slide rail is eliminated by the adjustment roller arranged obliquely in the structural system of the aforementioned gap elimination mechanism. However, since there are more than ten components constituting the entire gap elimination mechanism, the structure is relatively complex, which brings certain troubles to the manufacturing and assembly. In particular, although the gap elimination mechanism of the patent can eliminate the Z-direction gap of the slide rail through the sliding roller of the structural system of the sliding seat, the aforementioned adjustment roller arranged obliquely cannot show the desired effect of eliminating the Y-direction gap between the movable and static slide rails. Specifically, the upper parts of both sides of the movable slide rail in the longitudinal direction are folded downwards to form a pair of movable slide rail cavities with a U-shaped cross-section, and the upper parts of both sides of the static slide rail in the longitudinal direction are folded to form a pair of static slide rail cavities with an N-shaped cross-section. When the movable and static slide rails are matched with each other in the positions of the aforementioned movable and static slide rail cavities, a pair of gaps are actually formed between the two in the longitudinal direction, and the pair of gaps cannot meet the desired gap elimination effect by only relying on an adjustment roller inclined at the corner of the gap. In addition, the inclined setting of the adjustment roller also has at least the following shortcomings: increased complexity of the structure, increased cost, increased wear of the roller, easy wear of the slide rail due to uneven pressure distribution generated by the slide rail, increased resistance during adjustment, and the presence of stagnation or jamming, etc.

[0008] A more typical example is CN220842279U which provides "a roller clearance elimination mechanism for a car seat slide rail". Compared with the aforementioned CN115593282A, this patent has the advantage of a significantly simpler structure and can objectively deliver on the three technical effects summarized in the technical effect column of its specification. However, the following drawbacks still exist: since a roller mounting seat together with the roller embedded thereon is directly embedded in a mounting seat fitting groove provided on a movable slide rail (referred to in the patent as a "sliding bracket"), during actual use, i.e. when the movable slide rail is adjusted, the roller mounting seat is simultaneously subjected to the dual effects of the force exerted on it by the roller and the reaction force of the embedded edge of the mounting seat fitting groove formed on the movable slide rail (referred to in the patent as a "sliding bracket") for the roller mounting seat, which can easily damage the roller mounting seat having a monotonous structure and relatively weak strength. Once the roller mounting seat is damaged, the roller loses its support and may get stuck in the gap between the movable and static slide rails, which ultimately causes the movable slide rail to lose its ability to adjust the seat pan of the car seat, i.e., the adjustment function of the car seat is lost.

[0009] In view of the shortcomings of the above-mentioned existing technologies, it is necessary to make reasonable improvements. To this end, the applicant has made beneficial and persistent explorations and designs and carried out a non-limited number of simulation tests under confidentiality measures, and finally formed the technical solution to be introduced below. Summary of the invention

[0010] The task of the present invention is to provide an automatic adjustment slide rail for a car seat which helps to significantly simplify the overall structure so as to facilitate manufacturing and assembly and embody economy, is conducive to completely eliminating the Y-direction and Z-direction clearances of the moving and static slide rails to embody excellent clearance elimination effect, is beneficial to improving the rationality of the structure of the clearance elimination mechanism to avoid damage to the components for setting rollers, is conducive to improving the coordination effect between the moving slide rail and the transmission mechanism to improve the stability of the moving slide rail movement and has good reliability.

[0011] Another task of the present invention is to provide a car seat that can fully demonstrate the technical effect of the automatic adjustment slide rail of the car seat.

[0012] The task of the present invention is accomplished in this way: an automatic adjustment slide rail for a car seat comprises a static slide rail, the static slide rail comprises a static slide rail fixed bottom plate, a static slide rail front side wall formed by folding upwardly from the front side of the static slide rail fixed bottom plate in the length direction, and a static slide rail rear side wall formed by folding upwardly from the rear side of the static slide rail fixed bottom plate in the length direction and parallel to the static slide rail front side wall, the space between the static slide rail front and rear side walls constitutes a static slide rail cavity with an open top, and the upper edge of the static slide rail front side wall in the length direction is folded toward the direction of the static slide rail cavity to form a movable slide rail front folding mating groove with an N-shaped cross section. The upper edge of the rear side wall of the static slide rail in the length direction is also folded toward the direction of the static slide rail cavity to form a movable slide rail rear folding edge matching groove with a cross-sectional shape corresponding to the movable slide rail front folding edge matching groove and the same N-shaped; a movable slide rail, which is folded upward at the front side in the length direction of the movable slide rail to form a movable slide rail front folding edge matching groove with a cross-sectional shape of U-shaped and matching with the movable slide rail front folding edge matching groove, and a movable slide rail rear folding edge matching groove is folded upward at the rear side in the length direction of the movable slide rail, and a movable slide rail rear folding edge matching groove with a cross-sectional shape of U-shaped and matching with the movable slide rail rear folding edge matching groove is formed at the bottom of the left end and the right end of the movable slide rail. The bottom is rotatably provided with a pair of Z-direction gap eliminating rollers for eliminating the Z-direction gap between the dynamic and static slide rails and forming a rolling pair with the fixed bottom plate of the static slide rail; a seat seat basin connecting plate, which is connected to the upper part of the dynamic slide rail; a screw rod, which is arranged in the static slide rail cavity; an automatic displacement driving mechanism for the dynamic slide rail for driving the dynamic slide rail together with the seat seat basin connecting plate to move left or right, the automatic displacement driving mechanism for the dynamic slide rail cooperates with the seat seat basin connecting plate, the dynamic slide rail and the screw rod in sequence from top to bottom; the characteristic is that: at the dynamic slide corresponding to the front folding groove of the dynamic slide rail The left and right ends of the construction wall of the front folding groove of the rail are respectively embedded with a front gap eliminating mechanism for eliminating the gap between the groove wall on the opposite side of the front folding matching groove of the movable slide rail and the construction wall of the front folding groove of the movable slide rail, and the left and right ends of the construction wall of the rear folding groove of the movable slide rail corresponding to the rear folding groove of the movable slide rail are respectively embedded with a rear gap eliminating mechanism for eliminating the gap between the groove wall on the opposite side of the rear folding matching groove of the movable slide rail and the construction wall of the rear folding groove of the movable slide rail; a pair of movable slide rail guide mechanisms spaced from each other are arranged on the side facing downward in the middle part of the movable slide rail, and the pair of movable slide rail guide mechanisms and the screw rod form a sliding pair.

[0013] In a specific embodiment of the present invention, a roller retainer support block front left embedded groove and a roller retainer support block front right embedded groove are respectively formed on the upper left end and the upper right end of the front folding groove construction wall of the movable slide rail, and the front anti-backlash mechanism is inserted and arranged on the front folding groove construction wall of the movable slide rail at a position corresponding to the front left embedded groove of the roller retainer support block and the front right embedded groove of the roller retainer support block; a roller retainer support block rear left embedded groove and a roller retainer support block rear right embedded groove are respectively formed on the upper left end and the upper right end of the rear folding groove construction wall of the movable slide rail, and the rear anti-backlash mechanism is inserted and arranged on the rear folding groove construction wall of the movable slide rail at a position corresponding to the rear left embedded groove of the roller retainer support block and the rear right embedded groove of the roller retainer support block, and the structure of the rear anti-backlash mechanism is the same as that of the front anti-backlash mechanism.

[0014] In another specific embodiment of the present invention, the front left embedding groove of the roller cage support block and the front right embedding groove of the roller cage support block are separated by the front limiting flange of the cage, and the rear left embedding groove of the roller cage support block and the rear right embedding groove of the roller cage support block are separated by the rear limiting flange of the cage; the front anti-backlash mechanism includes a roller cage support block, a roller cage and a roller, the hollow cavity in the middle of the roller cage support block is inserted and matched with the front limiting flange of the cage, the left end of the roller cage support block is inserted and matched with the front folding groove construction wall of the movable slide rail at a position corresponding to the front left embedding groove of the roller cage support block, and the right end of the roller cage support block is inserted and matched with the front right embedding groove of the roller cage support block. The position is inserted and matched with the wall constructed by the front folding groove of the movable slide rail, and a roller supporting pillow is formed on the upper right end of the roller retainer support block, the roller retainer is inserted into the outside of the roller retainer support block, and the left end of the roller retainer is supported by the retainer reinforcement block formed at the left end of the roller retainer support block, the roller supporting pillow corresponds to the roller retainer cavity formed in the middle part of the roller retainer and is flush with the upper surface of the roller retainer cavity, the right end face of the roller retainer is in contact with the right groove wall of the front right embedded groove of the roller retainer support block, the roller is arranged on the roller supporting pillow in a lying state, and the left end face and the right end face of the roller are respectively protected by the surfaces of the left flange of the roller retainer and the right flange of the retainer facing each other.

[0015] In another specific embodiment of the present invention, a roller support pillow peak is formed in the middle area of ​​the upper surface of the roller support pillow, and a roller valley is formed in the middle of the length direction of the roller and around the circumferential direction of the roller, and the roller valley cooperates with the roller support pillow peak.

[0016] In another specific embodiment of the present invention, pad fixing holes are provided at intervals in the length direction of the static slide rail fixing base plate of the static slide rail, and a pad is provided at a position corresponding to the pad fixing hole and below the static slide rail fixing base plate. In a state of use, the static slide rail fixing base plate together with the pad is fixed to the vehicle's compartment floor plate by pad fixing screws at a position corresponding to the pad fixing hole, and the static slide rail fixing base plate also cooperates with the positioning column holes preset on the vehicle's compartment floor plate through positioning columns distributed at intervals.

[0017] In another specific embodiment of the present invention, a screw support seat fixing screw clearance hole is provided on the static slide rail fixed base plate and at positions corresponding to the left end and the right end of the screw respectively, the left end and the right end of the screw are respectively arranged on the screw support seat, and the left end of the screw is threadedly matched with the screw support seat located at the left end, while the right end of the screw extends to the right side of the screw support seat at the right end and is locked by the locking nut at the right end of the screw, and the bottom of the screw support seat is screwed upward into the bottom of the screw support seat from the bottom of the static slide rail fixed base plate toward the direction of the static slide rail cavity at the position corresponding to the screw support seat screw clearance hole, thereby fixing the screw support seat in the static slide rail cavity and the static slide rail fixed base plate.

[0018] In a more specific embodiment of the present invention, a motor yielding cavity is formed in the middle part of the chair seat basin connecting plate in the longitudinal direction, a motor seat fixing plate is fixed at a position corresponding to the lower part of the motor yielding cavity, a motor shaft sleeve matching hole is provided in the middle part of the motor seat fixing plate, and a chair seat basin connecting nut seat is fixed at the left end and the right end of the chair seat basin connecting plate respectively; a worm gear box embedding cavity is provided in the middle part of the length direction of the movable slide rail and at a position corresponding to the motor shaft sleeve matching hole, and an embedded protrusion is formed at an interval at the lower part of the chair seat basin connecting plate, and the embedded protrusion is inserted and fixed with the embedded block cavity provided on the movable slide rail; the movable slide rail automatic displacement driving mechanism is matched with the motor seat fixing plate, the worm gear box embedding cavity and the middle part of the screw in sequence from top to bottom.

[0019] In a further specific embodiment of the present invention, a motor shaft clearance cavity is provided at a position on one side of the middle part of the worm gear box embedding cavity; the movable slide rail automatic displacement drive mechanism comprises a motor, a motor shaft sleeve and a worm gear box, the motor is fixed on the upward side of the motor seat with its motor shaft facing downward, and the motor shaft of the motor extends to the bottom of the motor seat, and the motor seat is fixed to the upward side of the motor seat fixing plate by a motor seat fixing screw, the motor shaft sleeve is embedded with the motor seat fixing plate at a position corresponding to the motor shaft sleeve matching hole, and the motor shaft extends to the bottom of the motor shaft sleeve hole at a position corresponding to the motor shaft sleeve hole provided in the middle of the motor shaft sleeve and at the corresponding The worm hole on the worm gear box is inserted into the worm gear box and connected with the worm in the worm gear box, and the worm gear drives the worm in the worm gear box to move on the screw, and the worm gear box is embedded in the worm gear box cavity; wherein a motor sleeve tensioning wing embedding cavity is formed on the hole walls on the left and right sides of the motor sleeve matching hole and at corresponding positions, and a pair of motor sleeve tensioning wings corresponding to each other and separated by a tensioning wing groove are formed at the left and right ends of the motor sleeve, the pair of motor sleeve tensioning wings are embedded in the motor sleeve tensioning wing embedding cavity, and the tensioning wing groove is embedded in the embedded protrusion; the motor is a DC brushless motor with forward and reverse rotation functions.

[0020] In yet another specific embodiment of the present invention, the pair of movable slide rail guide mechanisms each include a sleeve seat fixing plate and a sleeve seat, the sleeve seat fixing plate is welded to the downward side of the movable slide rail, the sleeve seat is fixed to the left side of the sleeve seat fixing plate by a sleeve seat fixing screw, and a sleeve seat screw sliding matching hole is formed on the sleeve seat, the sleeve seat screw sliding matching hole corresponds to the sleeve seat fixing plate screw sliding matching hole opened on the sleeve seat fixing plate, the sleeve seat screw sliding matching hole and the sleeve seat fixing plate screw sliding matching hole are jointly sleeved on the screw and form a sliding pair with the screw.

[0021] Another object of the present invention is achieved by providing a vehicle seat having the vehicle seat automatically adjustable slide rail.

[0022] One of the technical effects of the technical solution provided by the present invention is that the number of parts is significantly reduced compared with the prior art, thereby simplifying the overall structure, which is not only convenient for manufacturing and assembly, but also can reflect good and economical efficiency; secondly, since the left and right ends of the movable slide rail front folding groove construction wall corresponding to the movable slide rail front folding groove are each inserted with a front gap eliminating mechanism for eliminating the gap between the groove wall on the opposite side of the movable slide rail front folding groove and the movable slide rail front folding groove construction wall, and the left and right ends of the movable slide rail rear folding groove construction wall corresponding to the movable slide rail rear folding groove are each inserted with a groove wall on the opposite side of the movable slide rail rear folding groove and the movable slide The rear folding groove at the rear of the rail forms a rear gap eliminating mechanism for the gap between the walls, so the front and rear gap eliminating mechanisms of the movable slide rail can eliminate the gap in the Y direction, and the Z direction gap eliminating roller that forms a rolling pair with the fixed bottom plate of the static slide rail can eliminate the gap in the Z direction, thereby reflecting an all-round excellent gap eliminating effect; thirdly, due to the reasonable structure of the front and rear gap eliminating mechanisms, damage to the components for setting the rollers can be avoided, thereby ensuring a long service life; fourthly, since a pair of movable slide rail guide mechanisms and a screw can form a sliding pair, the stability of the movement of the movable slide rail can be improved and the reliability is good; fifthly, the provided car seat can fully realize the above-mentioned technical effect of the automatic adjustment slide rail of the car seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of left side view; Figure 3 for Figure 1 Enlarged view of part A. DETAILED DESCRIPTION

[0024] In order to more clearly understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description in the form of embodiments below. However, the description of the embodiments is not a limitation of the present invention. Any equivalent changes made based on the concept of the present invention that are merely formal and not substantial should be regarded as within the scope of the technical solution of the present invention.

[0025] In the following description, all concepts related to up, down, left, right, front and back directions or orientations are based on the current Figure 1 The position state is taken as a reference, and thus it cannot be understood as a special limitation on the technical solution provided by the present invention.

[0026] See also Figure 1 and Figure 2, shows a static slide rail 1, which includes a static slide rail fixed bottom plate 11, a static slide rail front side wall 12 formed by folding upward from the front side of the static slide rail fixed bottom plate 11 in the length direction, and a static slide rail rear side wall 13 formed by folding upward from the rear side of the static slide rail fixed bottom plate 11 in the length direction and parallel to the static slide rail front side wall 12, the space between the static slide rail front and rear side walls 12, 13 constitutes a static slide rail cavity 14 with an upper opening, and in the length direction of the static slide rail front side wall 12 The upper edge of the movable rail 2 is extended toward the static rail cavity 14 to form a movable rail front folding matching groove 121 with an N-shaped cross-section shape. The upper edge of the static rail rear side wall 13 in the length direction is also extended toward the static rail cavity 14 to form a movable rail rear folding matching groove 131 with a cross-section shape corresponding to the movable rail front folding matching groove 121 and also with an N-shaped cross-section shape. A movable rail 2 is shown, and the lower front side of the movable rail 2 in the length direction is folded upward to form a movable rail rear folding matching groove 131 with a U-shaped cross-section shape. The movable rail front folding groove 21 is in the shape of a letter U and matches with the aforementioned movable rail front folding matching groove 121. A movable rail rear folding groove 22 with a U-shaped cross section and matching with the aforementioned movable rail rear folding matching groove 131 is folded upward at the lower rear part in the longitudinal direction of the movable rail 2. A pair of movable rails for eliminating the Z-direction gap between the movable and static rails 1 and 2 and forming a rolling pair with the aforementioned static rail fixed bottom plate 11 are rotatably arranged at the left and right bottom ends of the movable rail 2. A roller 23 is shown to eliminate the Z-direction gap; a seat basin connecting plate 3 is shown, which is connected to the upper part of the aforementioned movable slide rail 2; a screw rod 4 is shown, which is arranged in the aforementioned static slide rail cavity 14; a movable slide rail automatic displacement driving mechanism 5 is shown for driving the aforementioned movable slide rail 2 together with the aforementioned seat basin connecting plate 3 to move to the left or right, and the movable slide rail automatic displacement driving mechanism 5 cooperates with the aforementioned seat basin connecting plate 3, the movable slide rail 2 and the screw rod 4 in sequence from top to bottom.

[0027] According to common sense and the literal meaning, the static slide rail 1 mentioned above can be called a lower slide rail or an outer slide rail, and correspondingly, the movable slide rail 2 can be called an upper slide rail or an inner slide rail. Therefore, the technical essence of the present invention cannot be limited by the different definitions of the terms. Figure 1 and Figure 2 The Z-direction clearance eliminating roller 23 shown in the figure is rotatably supported on a roller shaft support plate 25 via a roller shaft 231. The roller shaft support plate 25 is formed by punching the movable slide rail 2 through a stamping process, that is, by transferring the stamped material.

[0028] The technical highlights of the technical solution provided by the present invention are as follows: a front gap eliminating mechanism 6 is inserted at the left end and the right end of the movable slide rail front folding groove construction wall 211 corresponding to the movable slide rail front folding groove 21, and a rear gap eliminating mechanism 7 is inserted at the left end and the right end of the movable slide rail rear folding groove construction wall 221 corresponding to the movable slide rail rear folding groove 22, and a pair of movable slide rail guide mechanisms 8 are spaced apart from each other on the lower side of the middle part of the movable slide rail 2, and the pair of movable slide rail guide mechanisms 8 and the aforementioned screw rod 4 form a sliding pair.

[0029] See you next time Figure 1 and Figure 2 A roller cage support block front left embedded groove 2111 and a roller cage support block front right embedded groove 2112 are respectively formed at the upper left end and the upper right end of the aforementioned movable slide rail front folding groove construction wall 211, and the aforementioned front clearance elimination mechanism 6 is inserted and embedded in the aforementioned movable slide rail front folding groove construction wall 211 at the position corresponding to the roller cage support block front left embedded groove 2111 and the roller cage support block front right embedded groove 2112; The upper left end and the upper right end of 221 are respectively formed with a roller retainer support block rear left embedded groove 2211 and a roller retainer support block rear right embedded groove 2212, and the aforementioned rear anti-backlash mechanism 7 is inserted and embedded on the aforementioned movable slide rail rear folding groove construction wall 221 at a position corresponding to the roller retainer support block rear left embedded groove 2211 and the roller retainer support block rear right embedded groove 2212, and the aforementioned rear anti-backlash mechanism 7 has the same structure as the aforementioned front anti-backlash mechanism 6.

[0030] See also Figure 3 And combined with Figure 1The aforementioned roller cage support block front left embedded groove 2111 and the roller cage support block front right embedded groove 2112 are separated by the cage front limiting flange 2113, and the aforementioned roller cage support block rear left embedded groove 2211 and the roller cage support block rear right embedded groove 2212 are separated by the cage rear limiting flange 2213; the aforementioned front anti-backlash mechanism 6 includes a roller cage support block 61, a roller cage 62 and a roller 63, the hollow cavity 612 in the middle of the roller cage support block 61 is inserted and matched with the aforementioned cage front limiting flange 2113, the left end of the roller cage support block 61 is inserted and matched with the aforementioned movable slide rail front folding groove construction wall 211 at a position corresponding to the aforementioned roller cage support block front left embedded groove 2111, and the right end of the roller cage support block 61, which is preferably made of rubber but not absolutely limited to rubber, is inserted and matched with the aforementioned movable slide rail front folding groove construction wall 211 at a position corresponding to the aforementioned roller cage support block front right embedded groove 2112 The position is inserted and matched with the wall 211 of the front folding groove of the movable slide rail, and a roller support pillow 611 is formed on the upper right end of the roller cage support block 61. The roller cage 62 is inserted outside the roller cage support block 61, and the left end of the roller cage 62 is supported by the cage reinforcement block 613 formed at the left end of the roller cage support block 61. The aforementioned roller support pillow 611 and the roller cage cavity formed in the middle of the roller cage 62 621 corresponds to and is flush with the upper surface of the roller cage cavity 621, the right end face of the roller cage 62 is in contact with the right groove wall 21121 of the front right embedded groove 2112 of the aforementioned roller cage support block, the roller 63 is arranged in a horizontal state on the roller support pillow 611, and the left end face and the right end face of the roller 63 are respectively protected by the surfaces of the opposite sides of the cage left flange 622 and the cage right flange 623 of the roller cage 62.

[0031] See you next time Figure 1 and Figure 3 A roller support pillow peak 6111 is formed in the middle area of ​​the upper surface of the aforementioned roller support pillow 611, and a roller valley 631 is formed in the middle of the length direction of the aforementioned roller 63 and in the circumferential direction around the roller 63. The roller valley 631 cooperates with the aforementioned roller support pillow peak 6111. This structural design can extremely reduce the movement resistance of the roller 63.

[0032] Depend on Figure 1 As shown, pad fixing holes 111 are provided at intervals in the length direction of the static slide rail fixing base plate 11 of the aforementioned static slide rail 1, and a pad 1111 is provided at a position corresponding to the pad fixing hole 111 and below the static slide rail fixing base plate 11. In the use state, the static slide rail fixing base plate 11 together with the pad 1111 is fixed to the vehicle's compartment floor at a position corresponding to the pad fixing hole 111 by pad fixing screws, and the static slide rail fixing base plate 11 is also matched with the positioning column holes preset on the vehicle's compartment floor through the spacing distributed positioning columns 112.

[0033] On the aforementioned static slide rail fixed base plate 11 and at the positions corresponding to the left and right ends of the aforementioned screw rod 4, a screw support seat fixing screw clearance hole 113 is respectively provided. The left and right ends of the aforementioned screw rod 4 are respectively arranged on the screw support seat 41, and the left end of the screw rod 4 is threadedly matched with the screw support seat 41 located at the left end, and the right end of the screw rod 4 extends to the right side of the screw support seat 41 at the right end and is locked by the screw right end locking nut 42. This is because the left end of the screw rod 4 is threadedly matched with the screw support seat 41 at the left end, and the right end is matched with the corresponding position of the screw support seat 41 at the right end. The bottom of the screw support seat 41 is screwed into the bottom of the screw support seat 41 upward from the bottom of the static slide rail fixed base plate 11 toward the direction of the aforementioned static slide rail cavity 14 through the screw support seat fixing screw 411 at the position corresponding to the aforementioned screw support seat screw clearance hole 113, so that the screw support seat 41 is fixed to the static slide rail fixed base plate 11 in the aforementioned static slide rail cavity 14.

[0034] A motor clearance cavity 31 is formed in the middle part of the aforementioned seat seat basin connecting plate 3 in the longitudinal direction, and a motor seat fixing plate 311 is fixed at a position corresponding to the lower part of the motor clearance cavity 31, and a motor shaft sleeve matching hole 3111 is provided in the middle part of the motor seat fixing plate 311, and a seat seat basin connecting nut seat 32 is fixed to the left and right ends of the seat seat basin connecting plate 3; a worm gear box embedding cavity 24 is provided in the middle part of the aforementioned movable slide rail 2 in the longitudinal direction and at a position corresponding to the aforementioned motor shaft sleeve matching hole 3111, and an embedded protrusion 33 is formed at the lower part of the aforementioned seat seat basin connecting plate 3, and the embedded protrusion 33 is inserted and fixed with the embedded block cavity 26 provided on the aforementioned movable slide rail 2; the aforementioned movable slide rail automatic displacement driving mechanism 5 is matched with the aforementioned motor seat fixing plate 311, the worm gear box embedding cavity 24 and the middle part of the aforementioned screw 4 from top to bottom in sequence.

[0035] Since the manner in which the seat pan of the car seat is connected to the seat pan connecting nut seat 32 during use is a known technique, the applicant will not elaborate on it any further.

[0036] Still see Figure 1 and Figure 2, a motor shaft clearance cavity 241 is provided at a position on one side of the middle part of the aforementioned worm gear box embedding cavity 24; the aforementioned movable slide rail automatic displacement driving mechanism 5 includes a motor 51, a motor shaft sleeve 52 and a worm gear box 53, the motor 51 is fixed on the upper side of the motor seat 512 with its motor shaft 511 facing downward, and the motor shaft 511 of the motor 51 extends to the bottom of the motor seat 512, and the motor seat 512 is fixed to the upper side of the aforementioned motor seat fixing plate 311 by a motor seat fixing screw 5121, the motor shaft sleeve 52 is embedded with the motor seat fixing plate 311 at a position corresponding to the aforementioned motor shaft sleeve matching hole 3111, and the aforementioned motor shaft 511 extends to the motor shaft sleeve hole 521 at a position corresponding to the motor shaft sleeve hole 521 provided in the middle of the motor shaft sleeve 52 The worm gear box 53 is inserted into the worm gear box 53 at the position corresponding to the worm hole 531 on the worm gear box 53 and connected with the worm in the worm gear box 53, and the worm in the worm gear box 53 is driven by the worm to move on the aforementioned screw 4, and the worm gear box 53 is embedded with the aforementioned worm gear box embedding cavity 24; wherein a motor sleeve expansion wing embedding cavity 31111 is formed on the hole walls on the left and right sides of the aforementioned motor sleeve matching hole 3111 and at the corresponding positions, and a pair of motor sleeve expansion wings 522 corresponding to each other and separated by a expansion wing groove 5221 are formed at the left and right ends of the aforementioned motor sleeve 52, and the pair of motor sleeve expansion wings 522 are embedded with the aforementioned motor sleeve expansion wing embedding cavity 31111, and the expansion wing groove 5221 is embedded with the aforementioned embedding protrusion 33. In this embodiment, the aforementioned motor 51 is a DC brushless motor with forward and reverse functions.

[0037] Please continue to see Figure 1 The pair of movable slide rail guide mechanisms 8 mentioned above each include a sleeve seat fixing plate 81 and a sleeve seat 82. The sleeve seat fixing plate 81 is welded to the side of the movable slide rail 2 facing downward. The sleeve seat 82 is fixed to the left side of the sleeve seat fixing plate 81 by a sleeve seat fixing screw 822. A sleeve seat screw rod sliding hole 821 is formed on the sleeve seat 82. The sleeve seat screw rod sliding hole 821 corresponds to the sleeve seat fixing plate screw rod sliding hole provided on the sleeve seat fixing plate 81. The sleeve seat screw rod sliding hole 821 and the sleeve seat fixing plate screw rod sliding hole are jointly sleeved on the aforementioned screw rod 4 and form a sliding pair with the screw rod 4. This structural setting can make the movement (left-right displacement) of the upper slide rail 2 more stable.

[0038] According to professional common sense, as a car seat, it is necessary to be equipped with two car seat automatic adjustment slide rails of the structure of the present invention, and the motors 51 of the movable slide rail automatic displacement drive mechanism 5 in the structural system of the two, i.e. a pair of car seat automatic adjustment slide rails, are both controlled by the ECU (electronic control unit) to ensure that the two motors work synchronously and in the same direction.

[0039] by Figure 1 As an example, when the passenger operates a button located on the side or bottom of the seat or other reasonable position of the car seat, the seat automatically moves forward or backward ( Figure 1 The displayed state is moving left or right).

[0040] Now Figure 1 Taking the state shown as moving to the right as an example, under the operation of the motor 51, the motor shaft 511 drives the worm of the worm gear box 53, and the worm drives the worm wheel. Since the worm wheel cooperates with the screw 4, the worm gear box 53 moves to the right along the screw 4. Since the worm gear box 53 is embedded and connected with the movable slide rail 2 at the position corresponding to the worm gear box embedding cavity 24 opened on the movable slide rail 2, and since the aforementioned seat seat basin connecting plate 3 is embedded with the embedding convex block cavity 26 formed on the movable slide rail 2 through the embedding convex block 33 formed at its lower end, when the worm gear box 53 moves to the right along the screw 4, the movable slide rail 2 together with the seat seat basin connecting plate 3 and the motor 51 set with the seat seat basin connecting plate 3 as a carrier also move synchronously accordingly, thereby driving the seat basin of the seat of the car seat to move together with the seat. Since the process of displacement to the left is similar to the above, only the motor works in the reverse direction, the applicant will not repeat it.

[0041] When the movable slide rail 2 moves to the right or left, the two front clearance eliminating mechanisms 6 and the two rear clearance eliminating mechanisms 7 eliminate the clearance mentioned above, that is, eliminate the clearance in the Y direction. At the same time, the clearance in the Z direction is eliminated by the clearance eliminating roller 23 in the Z direction. It should be noted that the Z direction and the Y direction mentioned in this application are based on the directions on the vehicle in actual use.

[0042] The invention also relates to a car seat, which is provided with the above-mentioned car seat automatic adjustment slide rail.

[0043] In summary, the technical solution provided by the present invention makes up for the shortcomings of the existing technology, successfully completes the invention task, and faithfully realizes the technical effects stated by the applicant in the technical effect column above.

Claims

1. An automatic adjustment slide rail for a car seat, comprising a static slide rail (1), the static slide rail (1) comprising a static slide rail fixing base plate (11), a static slide rail front side wall (12) formed by folding upwardly the front side of the static slide rail fixing base plate (11) in the length direction, and a static slide rail rear side wall (13) formed by folding upwardly the rear side of the static slide rail fixing base plate (11) in the length direction and parallel to the static slide rail front side wall (12), the space between the static slide rail front and rear side walls (12, 13) forming a static slide rail cavity (14) with an upper opening, and The upper edge of the front side wall (12) of the rail in the length direction is folded and expanded toward the direction of the static rail cavity (14) to form a front folding edge matching groove (121) of the movable rail with a cross-sectional shape of the letter N, and the upper edge of the rear side wall (13) of the static rail in the length direction is also folded and expanded toward the direction of the static rail cavity (14) to form a rear folding edge matching groove (131) of the movable rail corresponding to the front folding edge matching groove (121) of the movable rail and with a cross-sectional shape of the letter N; a movable rail (2) is folded and expanded upward on the front side in the length direction of the movable rail (2) to form a cross-sectional shape of the movable rail A front folding groove (21) of the movable slide rail is in a U-shape and matches with the front folding groove (121) of the movable slide rail. A rear folding groove (22) of the movable slide rail is folded upward on the rear side in the longitudinal direction of the movable slide rail (2). The rear folding groove (22) of the movable slide rail also has a U-shape in cross section and matches with the rear folding groove (131) of the movable slide rail. A pair of Z-direction guide rails for eliminating the Z-direction gap between the movable and static slide rails (1, 2) and forming a rolling pair with the fixed bottom plate (11) of the static slide rail are rotatably arranged at the bottom of the left end and the bottom of the right end of the movable slide rail (2). A gap eliminating roller (23); a seat basin connecting plate (3), the seat basin connecting plate (3) being connected to the upper part of the movable slide rail (2); a screw rod (4), the screw rod (4) being arranged in the static slide rail cavity (14); a movable slide rail automatic displacement driving mechanism (5) for driving the movable slide rail (2) together with the seat basin connecting plate (3) to move to the left or right, the movable slide rail automatic displacement driving mechanism (5) being matched with the seat basin connecting plate (3), the movable slide rail (2) and the screw rod (4) in sequence from top to bottom; characterized in that: A front gap eliminating mechanism (6) for eliminating the gap between the groove wall on the opposite side of the movable rail front folding groove (121) and the movable rail front folding groove constructing wall (211) is inserted at the left end and the right end of the movable rail rear folding groove constructing wall (221) corresponding to the movable rail rear folding groove (22), and a rear gap eliminating mechanism (7) for eliminating the gap between the groove wall on the opposite side of the movable rail rear folding groove (131) and the movable rail rear folding groove constructing wall (221) is inserted at the left end and the right end of the movable rail rear folding groove constructing wall (221) corresponding to the movable rail rear folding groove (22); a pair of movable rail guide mechanisms (8) spaced apart from each other are provided on the downward side of the middle part of the movable rail (2), and the pair of movable rail guide mechanisms (8) and the screw rod (4) form a sliding pair.

2. The automatic adjustment slide rail for a car seat according to claim 1, characterized in that: A roller cage support block front left embedded groove (2111) and a roller cage support block front right embedded groove (2112) are respectively formed at the upper left end and the upper right end of the movable slide rail front folding groove construction wall (211), and the front clearance elimination mechanism (6) is inserted and arranged on the movable slide rail front folding groove construction wall (211) at a position corresponding to the roller cage support block front left embedded groove (2111) and the roller cage support block front right embedded groove (2112); 1), the upper left end and the upper right end of each of which are formed with a roller retainer support block rear left embedded groove (2211) and a roller retainer support block rear right embedded groove (2212), the rear anti-backlash mechanism (7) is inserted and arranged on the movable slide rail rear folding groove construction wall (221) at a position corresponding to the roller retainer support block rear left embedded groove (2211) and the roller retainer support block rear right embedded groove (2212), and the rear anti-backlash mechanism (7) has the same structure as the front anti-backlash mechanism (6).

3. The automatic adjustment slide rail for a car seat according to claim 2, characterized in that: The front left groove (2111) of the roller cage support block and the front right groove (2112) of the roller cage support block are separated by a front limiting flange (2113) of the cage, and the rear left groove (2211) of the roller cage support block and the rear right groove (2212) of the roller cage support block are separated by a rear limiting flange (2213) of the cage; the front clearance elimination mechanism (6) comprises a roller cage support block (61), a roller cage (62) and a roller (6 3), the hollow cavity (612) in the middle of the roller cage support block (61) is inserted and matched with the front limiting flange (2113) of the cage, the left end of the roller cage support block (61) is inserted and matched with the front folding groove construction wall (211) of the movable slide rail at a position corresponding to the front left embedded groove (2111) of the roller cage support block, and the right end of the roller cage support block (61) is inserted and matched with the front folding groove construction wall (211) of the movable slide rail at a position corresponding to the front right embedded groove (2112) of the roller cage support block. The roller retainer (62) is inserted into and fitted with a wall (211), and a roller support pillow (611) is formed on the upper right end of the roller retainer support block (61). The roller retainer (62) is inserted outside the roller retainer support block (61), and the left end of the roller retainer (62) is supported by a retainer reinforcement block (613) formed on the left end of the roller retainer support block (61). The roller support pillow (611) is opposite to a roller retainer cavity (621) formed in the middle of the roller retainer (62). The roller (63) is arranged on the roller support pillow (611) in a horizontal position, and the left end face and the right end face of the roller (63) are respectively protected by the surfaces of the roller retainer left flange (622) and the roller retainer right flange (623) on the opposite sides of the roller retainer (62).

4. The automatic adjustment slide rail for a car seat according to claim 3, characterized in that: A roller support pillow peak (6111) is formed in the middle area of ​​the upper surface of the roller support pillow (611), and a roller valley (631) is formed in the middle of the length direction of the roller (63) and around the circumferential direction of the roller (63), and the roller valley (631) cooperates with the roller support pillow peak (6111).

5. The automatic adjustment slide rail for a car seat according to claim 1, characterized in that: Pad fixing holes (111) are provided at intervals in the length direction of the static slide rail fixing base plate (11) of the static slide rail (1); a pad (1111) is provided at a position corresponding to the pad fixing hole (111) and below the static slide rail fixing base plate (11); in a state of use, the static slide rail fixing base plate (11) together with the pad (1111) is fixed to the vehicle compartment floor plate at a position corresponding to the pad fixing hole (111) by pad fixing screws; and the static slide rail fixing base plate (11) is also matched with positioning column holes preset on the vehicle compartment floor plate through positioning columns (112) distributed at intervals.

6. The automatic adjustment slide rail for a car seat according to claim 1, characterized in that: A screw support seat fixing screw clearance hole (113) is provided on the static slide rail fixed base plate (11) and at positions corresponding to the left end and the right end of the screw rod (4), respectively. The left end and the right end of the screw rod (4) are respectively arranged on the screw support seat (41), and the left end of the screw rod (4) is threadedly matched with the screw support seat (41) located at the left end, while the right end of the screw rod (4) extends to the right side of the screw support seat (41) at the right end and is locked by the locking nut (42) at the right end of the screw rod. The bottom of the screw support seat (41) is screwed upwardly into the bottom of the screw support seat (41) from the bottom of the static slide rail fixed base plate (11) toward the direction of the static slide rail cavity (14) at the position corresponding to the screw support seat screw clearance hole (113) by the screw support seat fixing screw (411), thereby fixing the screw support seat (41) in the static slide rail cavity (14) and the static slide rail fixed base plate (11).

7. The automatic adjustment slide rail for a car seat according to claim 1, characterized in that: A motor clearance cavity (31) is formed in the middle of the length direction of the seat seat basin connecting plate (3), a motor seat fixing plate (311) is fixed at a position corresponding to the lower part of the motor clearance cavity (31), a motor shaft sleeve matching hole (3111) is provided in the middle of the motor seat fixing plate (311), and a seat seat basin connecting nut seat (32) is fixed at the left and right ends of the seat seat basin connecting plate (3); in the middle of the length direction of the movable slide rail (2) and at the corresponding A worm gear box embedding cavity (24) is provided at the position of the motor shaft sleeve matching hole (3111), and an embedded protrusion (33) is formed at the lower interval of the seat base connecting plate (3), and the embedded protrusion (33) is inserted and fixed with the embedded block cavity (26) provided on the movable slide rail (2); the movable slide rail automatic displacement driving mechanism (5) is matched with the motor seat fixing plate (311), the worm gear box embedding cavity (24) and the middle part of the screw rod (4) in sequence from top to bottom.

8. The automatic adjustment slide rail for a car seat according to claim 7, characterized in that: A motor shaft clearance cavity (241) is provided at a position on one side of the middle part of the worm gear box embedding cavity (24); the movable slide rail automatic displacement driving mechanism (5) comprises a motor (51), a motor shaft sleeve (52) and a worm gear box (53); the motor (51) is fixed to the upward side of the motor seat (512) with its motor shaft (511) facing downward, and the motor shaft (511) of the motor (51) extends to the bottom of the motor seat (512); the motor seat (512) is fixed to the upward side of the motor seat fixing plate (311) by means of a motor seat fixing screw (5121); the motor shaft sleeve (52) is fitted with the motor seat fixing plate (311) at a position corresponding to the motor shaft sleeve matching hole (3111); the motor shaft (511) extends to the bottom of the motor shaft sleeve hole (521) at a position corresponding to the motor shaft sleeve matching hole (521) provided in the middle part of the motor shaft sleeve (52) and is provided at a position corresponding to the motor shaft sleeve hole (521) provided in the middle part of the motor shaft sleeve (52) and is provided at a position corresponding to the motor shaft sleeve hole (521) provided in the middle part of the motor shaft sleeve (52). The worm hole (531) on the worm gear box (53) is inserted into the worm gear box (53) and connected with the worm in the worm gear box (53), and the worm in the worm gear box (53) is driven by the worm to move on the screw (4), and the worm gear box (53) is embedded with the worm gear box cavity (24); wherein a motor shaft sleeve tensioner is formed on the hole walls on the left and right sides of the motor shaft sleeve matching hole (3111) and at mutually corresponding positions. A wing embedding cavity (31111), and a pair of motor sleeve expansion wings (522) corresponding to each other and separated by a expansion wing groove (5221) are respectively formed at the left end and the right end of the motor sleeve (52), the pair of motor sleeve expansion wings (522) are embedded with the motor sleeve expansion wing embedding cavity (31111), and the expansion wing groove (5221) is embedded with the embedded protrusion (33); the motor (51) is a brushless DC motor with forward and reverse rotation functions.

9. The automatic adjustment slide rail for a car seat according to claim 1, characterized in that: The pair of movable slide rail guide mechanisms (8) each comprises a sleeve seat fixing plate (81) and a sleeve seat (82); the sleeve seat fixing plate (81) is welded to the downward side of the movable slide rail (2); the sleeve seat (82) is fixed to the left side of the sleeve seat fixing plate (81) by means of a sleeve seat fixing screw (822); a sleeve seat screw sliding hole (821) is formed on the sleeve seat (82); the sleeve seat screw sliding hole (821) corresponds to the sleeve seat fixing plate screw sliding hole provided on the sleeve seat fixing plate (81); the sleeve seat screw sliding hole (821) and the sleeve seat fixing plate screw sliding hole are jointly sleeved on the screw rod (4) and form a sliding pair with the screw rod (4).

10. A car seat, characterized in that: The invention provides an automatically adjustable slide rail for a car seat as claimed in claim 1.

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