Automobile seat slide rail capable of being manually controlled and adjusted and automobile seat thereof

Abstract

An automobile seat sliding rail capable of being manually controlled and adjusted and an automobile seat with the automobile seat sliding rail comprise a lower sliding rail, a lower sliding rail groove is formed in the lower sliding rail, lower sliding rail locking teeth are formed on the groove walls of the lower sliding rail groove on the opposite sides of the lower sliding rail groove respectively, and a locking tooth plate locking groove is formed between every two adjacent lower sliding rail locking teeth. The upper sliding rail and the lower sliding rail form a sliding pair; the upper and lower slide rail locking and releasing mechanism is fixed with the middle part of the upper slide rail and is locked with or unlocked from the locking groove of the lock tooth plate; the anti-abnormal triggering device is characterized in that an anti-abnormal triggering distance is kept between the lock tooth plate actuating shaft manual operation mechanism and the top of the upper and lower sliding rail locking and releasing mechanism, and the lock tooth plate actuating shaft manual operation mechanism is unlocked only after the anti-abnormal triggering distance disappears. And the locking tooth plate actuating shaft manual operation mechanism can trigger the upper and lower slide rail locking and releasing mechanism. The automatic unlocking device has the advantages that abnormal unlocking under the condition of autonomous operation of non-seated passengers is avoided, safety is guaranteed, the universality of various vehicles is expanded, and the requirements of required working conditions are met.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to a manually adjustable car seat slide rail, and also to a car seat thereof. Background Technology

[0002] Car seat rails are an important, even indispensable, component of the car seat structure system. They are crucial for securing the car seat, adjusting it as needed, and ensuring passenger safety. For example, adjusting the rails provides passengers with the desired comfortable space, allows for smoother seat movement, and reduces the impact of sudden movements. Because the rails (especially the lower rails, i.e., static rails) ensure the strength and rigidity of the connection with the car floor, they maintain the seating posture in the event of a collision, enhancing safety. Furthermore, the rails provide excellent cushioning, reducing wear and extending the seat's lifespan.

[0003] As is known in the industry, apart from the more advanced adjustment methods of long-rail seats, conventional car seat rail adjustment methods mainly include electric and manual adjustment. Since technical information on electric car seat rail adjustment is abundant in domestic and foreign patent literature, the applicant will not elaborate further. In a sense, electric car seat rail adjustment evolved from manual adjustment. Although electric car seat rail adjustment currently dominates in vehicles, manual car seat rail adjustment still holds a place in the market due to its unique advantages. Specifically, electric car seat rail adjustment has high maintenance costs, consumes electricity, and has a relatively short lifespan; manual car seat rail adjustment has a simpler structure, lower cost, higher adjustment precision, and better emergency safety. Especially for some mid-to-low-end economy vehicles, the option of manual seat rail adjustment is more suitable in terms of cost-effectiveness. Furthermore, some vehicle designs can meet specific spatial layout or mechanical structure requirements with manual adjustment, such as SUVs and trucks. Since they do not require complex electronic control systems, manually controlled car seat rail adjustment is more practical.

[0004] Technical information related to manually adjustable car seat slide rails can be found in publicly available Chinese patent documents. For example, CN205130976U recommends "a manual slide rail for a car seat." The key design feature of this patent is that a pair of ball bearing assemblies are set on each side of the upper guide rail. Each ball bearing assembly consists of a ball bearing, a steel column, and two balls. A steel column slot is provided at the top center of the ball bearing, and two ball bearing slots are provided at the bottom. The steel column and balls are respectively placed in the steel column slot and the ball bearing slot. Another example is CN209600320U, which provides "an externally unlockable manual sliding car seat slide rail." By reading paragraphs 0015 to 0017 of the specification of this patent, it can be seen that it has a large number of parts and a relatively complex structure. For example, the control lever support plate needs to be provided with hole one, hole two, bolt clearance holes, and fixing holes. For example, CN107627909A describes "an automobile seat slide rail," which addresses the problem of asynchronous locking of a pair of slide rails in prior art. See paragraph 0028 of the patent specification for details. Furthermore, CN1085560C discloses "a slider for an automobile seat," which addresses a deficiency in US patents such as US4964608 (an automobile seat adjuster) and German patents such as DE3935359 (a device). The deficiency is that, in an accident, the lock may move to an unlocked position under the impact of the collision, and the seat may slide. In other words, CN1085560C has a positive significance in preventing abnormal sliding of the seat under vehicle impact.

[0005] The structure and working mechanism of the manually adjustable car seat slide rail, not limited to the examples mentioned above, are as follows: The locking teeth on both sides of the locking tooth plate mesh with the lower slide rail groove teeth on the opposite side of the groove wall of the lower slide rail (i.e., the stationary slide rail) in the longitudinal direction. The vertical displacement of the locking tooth plate is controlled by the locking tooth plate actuating shaft set on the upper slide rail (i.e., the moving slide rail), and the vertical displacement of the locking tooth plate actuating shaft is controlled by the manual operating mechanism of the locking tooth plate actuating shaft, which is also set on the upper slide rail. Therefore, when the manual operating mechanism of the locking tooth plate actuating shaft forces the locking tooth plate actuating shaft to move downward, the locking tooth plate fixed to its lower end is driven by the locking tooth plate actuating shaft to move downward accordingly, so that the locking teeth on the locking tooth plate separate from the lower slide rail groove teeth, thereby allowing adjustment of the upper slide rail and the car seat fixed to it. Conversely, it locks. This structural form has the following common drawbacks: In theory, as long as there is no external force acting on the manual operation mechanism of the locking tooth plate actuating shaft, the reaction spring sleeved on the locking tooth plate actuating shaft can ensure that the locking tooth plate actuating shaft is in the upper position and will not move downward abnormally due to its downward movement, causing the locking teeth on both sides of the locking tooth plate to separate from the lower rail groove teeth. However, because components of the aforementioned manual operating mechanism for the locking gear plate actuating shaft, such as the locking gear plate actuating shaft unlocking pressure plate, are always in close contact with the upper end face of the locking gear plate actuating shaft without any gap, if a passenger accidentally touches the U-shaped manual unlocking handle of the aforementioned manual operating mechanism, causing it to move upwards, the locking gear plate actuating shaft along with the aforementioned locking plate will be triggered, resulting in abnormal unlocking. This will ultimately cause the upper slide rail and seat to slide abnormally. At best, this will cause unnecessary psychological panic for the passenger; at worst, if the upper slide rail slides suddenly and with a large amplitude, it will pose a safety hazard. Especially during vehicle operation, due to severe bumps, sudden braking, impacts, or accidental collisions, the manual operating mechanism for the locking gear plate actuating shaft may be abnormally triggered beyond the passenger's control, ultimately leading to the uncontrolled displacement of the seat. This situation will not only frighten the passenger but also cause disturbance among the occupants of the vehicle.

[0006] As can be seen from the above description, the technical measures that ensure a good, stable and reliable locking state between the upper and lower slide rails even if the passengers accidentally touch the manual operation mechanism of the locking plate actuation shaft when the vehicle is in normal operation, or even when encountering situations such as severe bumps or impacts, are undoubtedly of great positive significance. The technical solution to be introduced below was developed in this context. Utility Model Content

[0007] The purpose of this invention is to provide a manually adjustable car seat slide rail that helps to prevent abnormal unlocking between the upper and lower slide rails caused by vehicle bumps, emergency braking, impacts, etc., when the passenger is not operating the vehicle independently, thereby ensuring safety, expanding its versatility for various vehicles, and meeting the required working conditions.

[0008] The present invention also aims to provide a car seat that can accurately reflect the technical effect of the manually controlled adjustable car seat slide rail.

[0009] The present invention achieves its objective as follows: a manually adjustable car seat slide rail includes a lower slide rail fixed to the car floor in use. The lower slide rail has a groove with an open upper section along its length. On opposite sides of the groove wall, a lower slide rail locking tooth is formed at intervals, and the space between two adjacent locking teeth forms a locking tooth plate locking groove. An upper slide rail cooperates with the lower slide rail to form a sliding pair. An upper and lower slide rail locking release mechanism is provided. The upper slide rail is fixed to the middle and locked or unlocked with the locking groove of the locking tooth plate; a manual operating mechanism for the locking tooth plate actuating shaft for controlling the action of the upper and lower slide rail locking release mechanism is connected to the upper slide rail at a position corresponding to the upper and lower slide rail locking release mechanism, characterized in that an anti-abnormal triggering gap is maintained between the top of the manual operating mechanism for the locking tooth plate actuating shaft and the upper and lower slide rail locking release mechanism, and the upper and lower slide rail locking release mechanism can only be triggered by the manual operating mechanism for the locking tooth plate actuating shaft after the anti-abnormal triggering gap disappears.

[0010] In a specific embodiment of this utility model, the space between the lower slide rail groove wall and the opposite side of the outer wall of the lower slide rail forms an upper slide rail folded edge sliding fit cavity. An upper slide rail fold is folded upwards on each of the two lower outer sides of the upper slide rail along its length direction. The upper slide rail fold extends into the upper slide rail fold sliding fit cavity, and a ball bearing clearance elimination mechanism is provided in the space between the upper slide rail fold and the opposite side of the outer wall of the lower slide rail to form a sliding pair between the upper slide rail fold and the opposite side of the outer wall of the lower slide rail. The upper part of the upper slide rail extends out of the upper opening of the lower slide rail groove along its length direction.

[0011] In another specific embodiment of this utility model, the upper slide rail has an upper slide rail cavity with a lower opening along its length. A locking tooth plate actuating shaft seat hole is formed on the top wall of the upper slide rail cavity and at the middle of the upper slide rail along its length. The upper slide rail locking release mechanism, which locks or unlocks the locking tooth plate locking groove, is set in the upper slide rail cavity at a position corresponding to the locking tooth plate actuating shaft seat hole and is fixed to the upper slide rail.

[0012] In another specific embodiment of this utility model, the upper and lower slide rail locking and releasing mechanism includes a locking tooth plate actuating shaft, an actuating shaft return spring, a locking tooth plate actuating block, and a locking tooth plate. The locking tooth plate actuating block is disposed in the upper slide rail cavity at a position corresponding to the middle of the length direction of the upper slide rail, and is fixed to the upper slide rail by one locking tooth plate actuating block fixing screw located on the left and right sides of the locking tooth plate actuating shaft seat hole, respectively, at positions corresponding to the locking tooth plate actuating block fixing screw holes opened at the left and right ends of the locking tooth plate actuating block. The locking tooth plate actuating block is located at the middle position in the length direction of the upper slide rail. The system comprises a locking plate actuating shaft seat, the upper part of which engages with the upper slide rail at a position corresponding to the locking plate actuating shaft seat hole. A locking plate actuating shaft is movably mounted on the locking plate actuating block at a position corresponding to the locking plate actuating shaft seat. The upper end of the locking plate actuating shaft protrudes from the locking plate actuating shaft seat and then from the upper surface of the upper slide rail. A return spring support stepped ring with a diameter larger than the diameter of the locking plate actuating shaft is formed on the locking plate actuating shaft at a position corresponding to the upper surface of the locking plate actuating shaft seat. A return spring support stepped ring is formed in the middle of the locking plate. Furthermore, a locking plate fixing hole is provided at the lower end of the locking plate actuation shaft, which is fixed to the lower end of the locking plate actuation shaft. A locking plate guide groove is provided at both the left and right ends of the locking plate, and these guide grooves slide in cooperation with guide rails on guide legs extending downwards at the left and right ends of the locking plate actuation block, respectively. Locking teeth, positioned at intervals on the front and rear sides of the locking plate along its length, are corresponding to the locking grooves of the locking plate and are used for locking or unlocking the locking grooves. A return spring for the actuation shaft is sleeved on the... On the locking tooth plate actuating shaft, the upper end of the actuating shaft return spring is supported on the return spring support step ring, while the lower end is supported on the upward-facing side of the locking tooth plate. On the cavity wall of the opposite side of the upper slide rail cavity, and at intervals corresponding to the position of the locking tooth plate, a set of upper slide rail locking tooth grooves are formed, with the number equal to the number of locking teeth and the positions corresponding to the locking tooth plate. The locking teeth move up and down to cooperate with the upper slide rail locking tooth grooves. The manual operation mechanism of the locking tooth plate actuating shaft connected to the upper slide rail maintains the abnormal triggering distance between itself and the top surface of the locking tooth plate actuating shaft.

[0013] In another specific embodiment of this utility model, the manual operation mechanism of the locking plate actuating shaft includes a manual unlocking handle pivot connecting seat fixing plate, a locking plate actuating shaft pressure plate, a manual unlocking handle tube shaft, and a locking plate actuating shaft anti-misfire torsion spring. The upper end of the manual unlocking handle pivot connecting seat fixing plate is fixed to the upper slide rail at a position to the left of the locking plate actuating block fixing screw. The lower end of the manual unlocking handle pivot connecting seat fixing plate corresponds to the front side of the upper slide rail and is provided with a handle tube shaft end pivot sleeve. The upper end of the locking plate actuating shaft pressure plate corresponds to the upper part of the locking plate actuating shaft and maintains the anti-abnormal triggering distance between it and the upper end face of the locking plate actuating shaft. The lower end of the actuation shaft pressure plate corresponds to the lower front side of the manual unlocking handle pivot connection seat fixing plate and is sleeved on the end of the manual unlocking handle tube shaft. The end of the manual unlocking handle tube shaft is pivotally engaged with the handle tube shaft end pivot sleeve. The locking tooth plate actuation shaft anti-misfire torsion spring is sleeved on the manual unlocking handle tube shaft at a position corresponding to the front side of the locking tooth plate actuation shaft pressure plate. The first torsion spring foot of the locking tooth plate actuation shaft anti-misfire torsion spring abuts against the manual unlocking handle pivot connection seat fixing plate at a position corresponding to the lower side of the handle tube shaft end pivot sleeve, while the second torsion spring foot abuts against the lower end of the locking tooth plate actuation shaft pressure plate.

[0014] In another specific embodiment of this utility model, a pair of rivet holes are provided on the upper slide rail at the position corresponding to the left side of the locking tooth plate actuating block fixing screw; the upper end of the manual unlocking handle pivot connecting seat fixing plate is riveted to the upper slide rail at the position corresponding to the pair of rivet holes by a pair of manual unlocking handle pivot connecting seat fixing plate rivets; a torsion spring foot abutment flange is formed at the lower end of the manual unlocking handle pivot connecting seat fixing plate at the position below the front side of the pivot bushing at the end of the handle tube shaft; the first torsion spring foot abuts against the right side of the torsion spring foot abutment flange; a torsion spring foot abutment groove is formed on the right side of the lower end of the locking tooth plate actuating shaft pressure plate; the second torsion spring foot abuts against the torsion spring foot abutment groove; a pressure plate limiting claw extends downward from the lower left side of the locking tooth plate actuating shaft pressure plate; the right side of the pressure plate limiting claw abuts against the left side of the torsion spring foot abutment flange.

[0015] In a more specific embodiment of this utility model, the anti-abnormal triggering spacing is less than 3mm.

[0016] In a further specific embodiment of this utility model, a left stop flange and a right stop flange of the lower slide rail are formed at intervals at the lower end of the lower slide rail groove wall. The area between the left and right stop flanges of the lower slide rail constitutes the effective sliding area of ​​the upper slide rail. A sliding stroke limiting foot of the upper slide rail is formed on both sides below the middle part of the upper slide rail in the length direction and at corresponding positions. When the sliding stroke limiting foot of the upper slide rail contacts the right side of the left stop flange of the lower slide rail, the upper slide rail moves to the left to its limit. When the sliding stroke limiting foot of the upper slide rail contacts the left side of the right stop flange of the lower slide rail, the upper slide rail moves to the right to its limit.

[0017] In yet another specific embodiment of this utility model, the ball backlash elimination mechanism includes a ball retainer and balls. The ball retainer is disposed in the space between the upper slide rail flange and the opposite side of the outer wall of the lower slide rail. A plurality of balls are distributed at the left and right ends of the ball retainer, and the balls cause the upper slide rail and the lower slide rail to form a sliding pair with each other.

[0018] Another objective of this invention is to provide a car seat characterized by having a manually adjustable car seat slide rail.

[0019] The technical effect of the solution provided by this utility model is as follows: Since there is an anti-abnormal triggering gap between the top of the manual operation mechanism of the locking tooth plate actuating shaft and the upper and lower rail locking release mechanism, and the manual operation mechanism of the locking tooth plate actuating shaft can only trigger the upper and lower rail locking release mechanism after the anti-abnormal triggering gap disappears, it helps to avoid abnormal unlocking between the upper and lower rails caused by vehicle bumps, emergency braking, impacts, etc. when the non-occupant operates the mechanism independently. This helps to ensure safety, expand the versatility for various vehicles, and meet the required working conditions. Attached Figure Description

[0020] Figure 1 This is a structural diagram of an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 The diagram shows the anti-abnormal triggering distance maintained between the locking plate actuating shaft pressure plate of the manual operation mechanism of the locking plate actuating shaft and the upper end face of the locking plate actuating shaft of the upper and lower slide rail locking and release mechanism.

[0022] Figure 3 for Figure 1 The diagram shows the sliding engagement of the upper and lower rails.

[0023] Figure 4 for Figure 1 and Figure 2A detailed structural diagram of the ball backlash elimination mechanism is shown.

[0024] Figure 5 This is a schematic diagram illustrating an application example of this utility model. Detailed Implementation

[0025] In order to better understand the technical essence and beneficial effects of this utility model, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the solution of this utility model. Any formal but not substantive equivalent transformations made based on the concept of this utility model should be considered within the scope of the technical solution of this utility model.

[0026] 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 are taken as a reference, and therefore should not be construed as a special limitation on the technical solution provided by this utility model.

[0027] Please see Figure 1 and Figure 2 The diagram shows a sliding rail 1 fixed to the floor of a car body in use. The sliding rail 1 has a sliding rail groove 11 with an open upper part along its length. On the opposite side of the sliding rail groove 111 along its length, there are sliding rail locking teeth 1111 at intervals. The space between two adjacent sliding rail locking teeth 1111 forms a locking tooth plate locking groove 1112. An upper sliding rail 2 is shown, which cooperates with the aforementioned sliding rail 1 to form a sliding pair. An upper and lower sliding rail locking release mechanism 3 is shown, which is fixed above the middle part of the aforementioned upper sliding rail 2 along its length and locks or unlocks with the aforementioned locking tooth plate locking groove 1112. A locking tooth plate actuating shaft manual operating mechanism 4 for controlling the operation of the aforementioned upper and lower sliding rail locking release mechanism 3 is shown. The locking tooth plate actuating shaft manual operating mechanism 4 is connected to the aforementioned upper sliding rail 2 at a position corresponding to the aforementioned upper and lower sliding rail locking release mechanism 3.

[0028] Depend on Figure 1 As shown, the aforementioned lower slide rail groove wall 111 is essentially formed by bending the upper parts of the two side walls of the lower slide rail 1 inwards in opposite directions along its length. Furthermore, the aforementioned lower slide rail locking teeth 1111 formed on the opposing lower slide rail groove walls 111 are mutually corresponding, and the aforementioned locking tooth plate locking grooves 1112 are also mutually corresponding. Figure 1The diagram also shows a sliding rail plug 12 fixed to the left and right ends of the sliding rail 1 in an envelope state, and a sliding rail floor fixing bolt 13 for fixing the left and right ends (front and rear ends in the use state) of the sliding rail 1 to the vehicle's floor. Furthermore, the aforementioned sliding rail plug 12 also enhances the overall strength of the sliding rail 1. The seat fixing bolt 25, shown on the aforementioned upper sliding rail 2, is used to fix the seat to the upper sliding rail 2 so that during adjustment, the upper sliding rail 2 moves the seat along with it.

[0029] The key technical point of the technical solution provided by this utility model is that there is an anti-abnormal triggering gap S between the top of the aforementioned locking tooth plate actuating shaft manual operation mechanism 4 and the aforementioned upper and lower slide rail locking release mechanism 3, and only after the anti-abnormal triggering gap S disappears can the aforementioned locking tooth plate actuating shaft manual operation mechanism 4 trigger the aforementioned upper and lower slide rail locking release mechanism 3.

[0030] Due to the unpredictable and sometimes difficult-to-determine nature of road conditions, such as the need for timely interventions (e.g., emergency braking, rapid acceleration, sudden deceleration), the vehicle may experience bumps and impacts. The inertia generated by these impacts could potentially unlock the upper sliding rail 2, causing psychological stress and even panic among passengers. Furthermore, in the event of a collision, if the upper sliding rail 2 remains securely locked, it is also highly beneficial to the safety of the passengers.

[0031] Please see Figure 3 And combined Figure 1 and Figure 2 The space between the lower slide rail groove 11 wall 111 of the aforementioned lower slide rail 1 and the opposite side of the outer wall (inner side of the outer wall) of the lower slide rail 1 forms an upper slide rail folded edge sliding fit cavity 112. An upper slide rail folded edge 21 is folded upward on each of the two lower outer sides of the aforementioned upper slide rail 2 along its length. The upper slide rail folded edge 21 extends into the aforementioned upper slide rail folded edge sliding fit cavity 112 and a ball backlash elimination mechanism 5 (also referred to as "backlash elimination mechanism", hereinafter the same) is provided in the space between the upper slide rail folded edge 21 and the opposite side of the outer wall (inner side of the outer wall) of the aforementioned lower slide rail 1 to form a sliding pair between the upper slide rail folded edge 21 of the upper slide rail 2 and the opposite side of the outer wall of the lower slide rail 1. The upper part of the aforementioned upper slide rail 2 extends out of the upper opening of the aforementioned lower slide rail groove 11 along its length.

[0032] The aforementioned upper slide rail 2 forms an upper slide rail cavity 22 with a lower opening along its length. Figure 1 and Figure 3As shown), a locking tooth plate actuating shaft seat hole 221 is provided on the top wall of the upper slide rail cavity 22 and at the middle of the length direction of the upper slide rail 2. Figure 1 (Illustrated), the aforementioned upper and lower slide rail locking release mechanism 3, which locks or unlocks the aforementioned locking tooth plate locking groove 1112, is provided in the aforementioned upper slide rail cavity 22 at the position corresponding to the locking tooth plate actuation shaft seat hole 221 and is fixed to the upper slide rail 2.

[0033] Please pay attention. Figure 1The aforementioned upper and lower slide rail locking and release mechanism 3 includes a locking tooth plate actuating shaft 31, an actuating shaft return spring 32, a locking tooth plate actuating block 33, and a locking tooth plate 34. The locking tooth plate actuating block 33 is disposed in the upper slide rail cavity 22 at a position corresponding to the middle of the length direction of the aforementioned upper slide rail 2, and is fixed to the upper slide rail 2 by one locking tooth plate actuating block fixing screw 3311 located on the left and right sides of the locking tooth plate actuating shaft seat hole 221, respectively, at positions corresponding to the locking tooth plate actuating block fixing screw holes 331 opened at the left and right ends of the locking tooth plate actuating block 33. A locking tooth plate actuating shaft seat 332 is formed at the center of the length direction of the locking tooth plate actuating block 33. The upper part of the actuation shaft seat 332 engages with the upper slide rail 2 at a position corresponding to the aforementioned locking plate actuation shaft seat hole 221. The locking plate actuation shaft 31 is movably mounted on the aforementioned locking plate actuation block 33 at a position corresponding to the aforementioned locking plate actuation shaft seat 332. The upper end of the locking plate actuation shaft 31 protrudes from the aforementioned locking plate actuation shaft seat 332 and then from the upper surface of the aforementioned upper slide rail 2. A return spring support step ring 311 with a diameter larger than the diameter of the locking plate actuation shaft 31 is formed on the locking plate actuation shaft 31 at a position corresponding to the aforementioned locking plate actuation shaft seat 332. At the middle of the locking plate 34 and corresponding to the aforementioned locking plate actuation shaft 31... A locking tooth plate fixing hole 341 is provided at the lower end of the locking tooth plate 34, which is fixed to the lower end of the locking tooth plate actuating shaft 31. A locking tooth plate guide groove 342 is provided at the left and right ends of the locking tooth plate 34, which slides with the guide rail 3331 (also called "guide protrusion") on the guide leg 333 that is respectively provided at the left and right ends of the locking tooth plate actuating block 33 and extends downward. On the front and rear sides of the locking tooth plate 34 along its length direction, there are locking teeth 343 at intervals, which are positioned corresponding to the aforementioned locking tooth plate locking groove 1112 and are used to lock or unlock the locking tooth plate locking groove 1112. An actuating shaft return spring 32 is provided. The aforementioned locking tooth plate actuation shaft 31 is placed on the aforementioned locking tooth plate actuation shaft 31. The upper end of the actuation shaft return spring 32 is supported on the aforementioned return spring support step ring 311, while the lower end is supported on the upward-facing side of the aforementioned locking tooth plate 34. On the cavity wall of the aforementioned upper slide rail cavity 22 on the opposite side, and at a position corresponding to the aforementioned locking tooth plate 34, a set of upper slide rail locking tooth grooves 26 are formed at intervals, with the number equal to the number of the aforementioned locking teeth 343 and the positions corresponding to the aforementioned locking tooth plate 343. The aforementioned locking teeth 343 move up and down to cooperate with the upper slide rail locking tooth grooves 26. The aforementioned locking tooth plate actuation shaft manual operation mechanism 4 connected to the aforementioned upper slide rail 2 and the top surface of the aforementioned locking tooth plate actuation shaft 31 maintain the aforementioned abnormal triggering distance S.

[0034] See you later Figure 1The aforementioned manual operation mechanism 4 for the locking plate actuating shaft includes a manual unlocking handle pivot connecting seat fixing plate 41, a locking plate actuating shaft pressure plate 42, a manual unlocking handle tube shaft 43, and a locking plate actuating shaft anti-misfire torsion spring 44. The upper end of the manual unlocking handle pivot connecting seat fixing plate 41 is fixed to the aforementioned upper slide rail 2 at a position located to the left of the aforementioned locking plate actuating block fixing screw 3311. The lower end of the manual unlocking handle pivot connecting seat fixing plate 41 is folded to correspond to the front side of the upper slide rail 2 and is provided with a handle tube shaft end pivot sleeve 411. Figure 1 As shown, the entire manual unlocking handle pivot connection seat fixing plate 41 is U-shaped. The upper end of the locking tooth plate actuation shaft pressure plate 42 corresponds to the upper part of the aforementioned locking tooth plate actuation shaft 31 and maintains the aforementioned anti-abnormal triggering distance S between it and the upper end face of the locking tooth plate actuation shaft 31. The lower end of the locking tooth plate actuation shaft pressure plate 42 corresponds to the lower front side of the aforementioned manual unlocking handle pivot connection seat fixing plate 41 and is sleeved on the tube shaft end 431 of the manual unlocking handle tube shaft 43. The tube shaft end 431 of the manual unlocking handle tube shaft 43 pivotally engages with the aforementioned handle tube shaft end pivot sleeve 411, locking... The toothed plate actuation shaft anti-misoperation torsion spring 44 is sleeved on the aforementioned manual unlocking handle tube shaft 43 at a position corresponding to the front side of the aforementioned toothed plate actuation shaft pressure plate 42. The first torsion spring foot 441 of the toothed plate actuation shaft anti-misoperation torsion spring 44 abuts against the aforementioned manual unlocking handle pivot connecting seat fixing plate 41 at a position below the aforementioned handle tube shaft end pivot sleeve 411, while the second torsion spring foot 442 of the toothed plate abuts against the lower end of the aforementioned toothed plate actuation shaft pressure plate 42. Figure 2 and Figure 5 The image shows a U-shaped manual unlocking handle 45 located at the midpoint of the length of the aforementioned manual unlocking handle shaft 43.

[0035] Depend on Figure 1As shown, a pair of rivet holes 23 are provided on the aforementioned upper slide rail 2 at the position corresponding to the left side of the locking tooth plate actuating block fixing screw 3311; the upper end of the aforementioned manual unlocking handle pivot connecting seat fixing plate 41 is riveted to the aforementioned upper slide rail 2 at the position corresponding to the pair of rivet holes 23 by a pair of manual unlocking handle pivot connecting seat fixing plate rivets 412; and a position is formed at the lower end of the manual unlocking handle pivot connecting seat fixing plate 41 at the position below the front side of the aforementioned handle tube shaft end pivot sleeve 411. The torsion spring foot abuts against the flange 413. The aforementioned first torsion spring foot 441 abuts against the right side of the torsion spring foot abutting flange 413. A torsion spring foot abutting groove 421 is formed on the lower right side of the aforementioned locking tooth plate actuating shaft pressure plate 42. The aforementioned second torsion spring foot 442 abuts against the torsion spring foot abutting groove 421. A pressure plate limiting claw 422 extends downward from the lower left side of the aforementioned locking tooth plate actuating shaft pressure plate 42. The right side of the pressure plate limiting claw 422 abuts against the left side of the aforementioned torsion spring foot abutting flange 413.

[0036] The aforementioned anti-abnormal triggering distance S is preferably less than 3mm, more preferably less than 2mm, more preferably less than 1.5mm, and most preferably 1mm. In this embodiment, 1mm is selected. The applicant should note that if the aforementioned anti-abnormal triggering distance S is selected to be slightly greater than 3mm for avoidance purposes, it should be considered equivalent and still fall within the scope of the technical content disclosed in this utility model.

[0037] The manually adjustable car seat slide rail provided by this utility model has a large unlocking angle or unlocking margin due to the aforementioned anti-abnormal triggering distance S, and can expand its versatility. Simply put, it can meet the needs of various working conditions. Specifically, when the manual unlocking handle 45 of the manual operating mechanism 4 of the locking tooth plate actuation shaft is lifted manually, Figure 5 When the locking plate actuating shaft 31 is subjected to a downward displacement force, the locking plate 34 separates from the aforementioned lower slide rail locking teeth 1111. At this point, the seat position can be easily moved and adjusted. Because this unlocking method is manually controlled, the driver or passenger can unlock and adjust the seat position within a wider angle range according to actual needs, thus meeting different seating and driving requirements. Furthermore, the manual operation control slide rail has relatively strong versatility and adaptability to various working conditions because it is not limited by power supply or electronic control systems, thus playing a stable role in various environments. Whether in extreme weather conditions or during vehicle power failure, passengers can manually adjust the seat position to ensure their desired comfort and safety.

[0038] Depend on Figure 1As shown, a left stop flange 1113 and a right stop flange 1114 are formed at the lower end of the groove wall 111 of the lower slide rail 1. The area between the left and right stop flanges 1113 and 1114 constitutes the effective sliding area of ​​the upper slide rail. On both sides below the middle of the upper slide rail 2 along its length, and at corresponding positions, there is an upper slide rail sliding stroke limiting foot 24. When the upper slide rail sliding stroke limiting foot 24 contacts the right side of the left stop flange 1113, the upper slide rail 2 moves to the left to its limit. When the upper slide rail sliding stroke limiting foot 24 contacts the left side of the right stop flange 1114, the upper slide rail 2 moves to the right to its limit.

[0039] Please see Figure 4 And combined Figure 1 and Figure 3 The aforementioned ball backlash elimination mechanism 5 (i.e. backlash elimination mechanism) includes a ball retainer 51 and balls 52. The ball retainer 51 is disposed in the space between the upper slide rail flange 21 of the upper slide rail 2 and the opposite side of the outer wall of the lower slide rail 1. A plurality of balls 52 are distributed at the left and right ends of the ball retainer 51, and the balls 52 make the upper slide rail 2 and the lower slide rail 1 form a sliding pair with each other.

[0040] Please see Figure 5 And combined Figures 1 to 4 Based on professional knowledge, in actual use, besides one manual unlocking handle 45 and one manual unlocking handle shaft 43, other components such as the upper and lower slide rails 2 and 1, and related parts each have [missing information]. Figure 5The pair shown. The applicant briefly describes the adjustment process of this utility model. Taking the adjustment of the seat position by the passenger as an example, the passenger lifts the aforementioned manual unlocking handle 45, which drives the aforementioned manual unlocking handle tube shaft 43. Under the action of the manual unlocking handle tube shaft 43 overcoming the reaction force of the anti-mis-trigger torsion spring 44 of the locking tooth plate actuating shaft, the locking tooth plate actuating shaft pressure plate 42 fixed thereto is driven, thereby the locking tooth plate actuating shaft pressure plate 42 applies a downward pressing force to the locking tooth plate actuating shaft 31, causing the locking tooth plate actuating shaft 31 to move downward under the reaction force of the aforementioned actuating shaft return spring 32. At this time, the actuating shaft return spring 32 is compressed and stores energy. Simultaneously, as the locking plate actuating shaft 31 moves downward, it drives the locking plate 34 to move downward accordingly, causing the locking teeth 343 on the locking plate 34 to disengage downward from the locking plate locking groove 1112. At this time, the upper slide rail 2 is in an unlocked state with the lower slide rail 1, and the passenger can adjust the seat to their desired position as needed. After adjustment, as long as the hand is removed from the manual unlocking handle 45, the restoring force of the aforementioned locking plate actuating shaft anti-misfire torsion spring 44 causes the manual unlocking handle tube shaft 43 to rotate in the opposite direction by an angle. At the same time, the manual unlocking handle tube shaft 43 drives the aforementioned locking plate actuating shaft pressure plate 42 to rotate by an angle accordingly, releasing the control of the aforementioned locking plate actuating shaft 31. Simultaneously, under the restoring force of the actuation shaft return spring 32, the locking tooth plate actuation shaft 31 moves upward, and the locking tooth plate 34 is also moved upward accordingly by the locking tooth plate actuation shaft 31. The locking teeth 343 on the locking tooth plate 34 return to the locked state that cooperates with the locking tooth plate locking groove 1112, and the upper slide rail 2 and the seat are also in the locked position. In this locked state, the upper end of the aforementioned locking tooth plate actuation shaft pressure plate 42 facing downward and the upper end face of the locking tooth plate actuation shaft 31 are restored to a distance S of less than 3mm to prevent abnormal triggering. That is to say, as long as this distance S is not confiscated (i.e., not eliminated), abnormal unlocking is impossible, thus fully demonstrating the technical effects mentioned by the applicant in the above technical effects section.

[0041] This utility model also provides a car seat, not shown in the figure but which can be fully understood based on professional common sense, which is equipped with a car seat slide rail for manual control and adjustment.

[0042] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the above technical effect column.

Claims

1. A manually adjustable car seat slide rail, comprising a lower slide rail (1) fixed to the floor of a car body in use, the lower slide rail (1) having a lower slide rail groove (11) with an open upper part along its length direction, a lower slide rail locking tooth (1111) being formed at intervals on the groove wall (111) on opposite sides of the lower slide rail groove (11) along its length direction, the space between two adjacent lower slide rail locking teeth (1111) forming a locking tooth plate locking groove (1112); and an upper slide rail (2), the upper slide rail (2) being connected to the lower slide rail... The upper slide rail (2) is fitted with the upper slide rail (1) and forms a sliding pair; an upper and lower slide rail locking and releasing mechanism (3) is fixed to the middle part of the upper slide rail (2) in the length direction and is locked or unlocked with the locking groove (1112) of the locking tooth plate; a locking tooth plate actuating shaft manual operating mechanism (4) for controlling the action of the upper and lower slide rail locking and releasing mechanism (3) is connected to the upper slide rail (2) at a position corresponding to the upper and lower slide rail locking and releasing mechanism (3), characterized in that: An anti-abnormal triggering gap (S) is maintained between the top of the manual operation mechanism (4) of the locking tooth plate actuating shaft and the upper and lower slide rail locking release mechanism (3), and the manual operation mechanism (4) of the locking tooth plate actuating shaft can only trigger the upper and lower slide rail locking release mechanism (3) after the anti-abnormal triggering gap (S) disappears.

2. The manually adjustable car seat slide rail according to claim 1, characterized in that: The space between the lower slide rail groove (111) wall (111) of the lower slide rail (1) and the opposite side of the outer wall of the lower slide rail (1) forms an upper slide rail folded edge sliding fit cavity (112). Each of the two lower outer sides of the upper slide rail (2) is folded upwards with an upper slide rail fold (21). The upper slide rail fold (21) extends into the upper slide rail folded edge sliding fit cavity (112). A ball ball backlash elimination mechanism (5) is provided in the space between the upper slide rail fold (21) and the opposite side of the outer wall of the lower slide rail (1) to form a sliding pair between the upper slide rail fold (21) of the upper slide rail (2) and the opposite side of the outer wall of the lower slide rail (1). The upper part of the upper slide rail (2) extends out of the upper opening of the lower slide rail groove (11) in the length direction.

3. The manually adjustable car seat slide rail according to claim 1, characterized in that: The upper slide rail (2) has an upper slide rail cavity (22) with an open lower part along its length. A locking tooth plate actuating shaft seat hole (221) is provided on the top wall of the upper slide rail cavity (22) and at the middle of the upper slide rail (2) along its length. The upper slide rail locking release mechanism (3), which locks or unlocks the locking tooth plate locking groove (1112), is located in the upper slide rail cavity (22) at a position corresponding to the locking tooth plate actuating shaft seat hole (221) and is fixed to the upper slide rail (2).

4. The manually adjustable car seat slide rail according to claim 3, characterized in that: The upper and lower slide rail locking and release mechanism (3) includes a locking tooth plate actuating shaft (31), an actuating shaft return spring (32), a locking tooth plate actuating block (33), and a locking tooth plate (34). The locking tooth plate actuating block (33) is located in the upper slide rail cavity (22) at a position corresponding to the middle of the length direction of the upper slide rail (2). It is fixed to the upper slide rail (2) by a locking tooth plate actuating block fixing screw (3311) located on the left and right sides of the locking tooth plate actuating shaft seat hole (221) at positions corresponding to the locking tooth plate actuating block fixing screw holes (331) opened at the left and right ends of the locking tooth plate actuating block (33). The locking tooth plate actuating block (33) is located at the middle position in the length direction of the upper slide rail cavity (22). A locking plate actuating shaft seat (332) is provided. The upper part of the locking plate actuating shaft seat (332) engages with the upper slide rail (2) at a position corresponding to the locking plate actuating shaft seat hole (221). A locking plate actuating shaft (31) is movably mounted on the locking plate actuating block (33) at a position corresponding to the locking plate actuating shaft seat (332). The upper end of the locking plate actuating shaft (31) protrudes from the locking plate actuating shaft seat (332) and then from the upper surface of the upper slide rail (2). A return spring with a diameter larger than the diameter of the locking plate actuating shaft (31) is formed on the locking plate actuating shaft (31) at a position corresponding to the upper surface of the locking plate actuating shaft seat (332). The support step ring (311) has a locking plate fixing hole (341) in the middle of the locking plate (34) and at the lower end corresponding to the locking plate actuation shaft (31). The locking plate fixing hole (341) is fixed to the lower end of the locking plate actuation shaft (31). A locking plate guide groove (342) is provided at the left and right ends of the locking plate (34). The locking plate guide groove (342) slides with the guide rail (3331) on the guide leg (333) which is respectively provided at the left and right ends of the locking plate actuation block (33) and extends downward. The front and rear sides of the locking plate (34) in the length direction are respectively provided with locking grooves (111) at intervals. 2) Corresponding locking teeth (343) for locking or unlocking with locking groove (1112) of locking tooth plate, actuation shaft return spring (32) is sleeved on the locking tooth plate actuation shaft (31), the upper end of the actuation shaft return spring (32) is supported on the return spring support step ring (311), and the lower end is supported on the side of the locking tooth plate (34) facing upward. On the cavity wall of the upper slide rail cavity (22) on the opposite side and at a position corresponding to the locking tooth plate (34), a set of upper slide rail locking tooth grooves (26) with the same number and position as the locking teeth (343) are formed at intervals. The locking teeth (343) are displaced up and down to cooperate with the upper slide rail locking tooth grooves (26).The manual operation mechanism (4) of the locking tooth plate actuation shaft connected to the upper slide rail (2) and the top surface of the locking tooth plate actuation shaft (31) maintain the anti-abnormal triggering gap (S).

5. The manually adjustable car seat slide rail according to claim 4, characterized in that: The manual operation mechanism (4) of the locking plate actuating shaft includes a manual unlocking handle pivot connecting seat fixing plate (41), a locking plate actuating shaft pressure plate (42), a manual unlocking handle tube shaft (43), and a locking plate actuating shaft anti-misfire torsion spring (44). The upper end of the manual unlocking handle pivot connecting seat fixing plate (41) is fixed to the upper slide rail (2) at the position to the left of the locking plate actuating block fixing screw (3311). The lower end of the manual unlocking handle pivot connecting seat fixing plate (41) corresponds to the front side of the upper slide rail (2) and is provided with a handle tube shaft end pivot sleeve (411). The upper end of the locking plate actuating shaft pressure plate (42) corresponds to the upper side of the locking plate actuating shaft (31) and maintains the anti-abnormal triggering distance (S) between it and the upper end face of the locking plate actuating shaft (31). The lower end of the locking plate actuating shaft pressure plate (42) corresponds to the upper side of the locking plate actuating shaft (31) and maintains the anti-abnormal triggering distance (S) between it and the upper end face of the locking plate actuating shaft (31). The manual unlocking handle is pivotally mounted on the front side of the lower end of the connecting seat fixing plate (41) and is sleeved on the end of the manual unlocking handle tube shaft (431). The end of the manual unlocking handle tube shaft (431) is pivotally engaged with the handle tube shaft end pivot sleeve (411). The locking tooth plate actuation shaft anti-misfire torsion spring (44) is sleeved on the manual unlocking handle tube shaft (43) at a position corresponding to the front side of the locking tooth plate actuation shaft pressure plate (42). The first torsion spring foot (441) of the locking tooth plate actuation shaft anti-misfire torsion spring (44) abuts against the manual unlocking handle pivot connecting seat fixing plate (411) at a position corresponding to the lower side of the handle tube shaft end pivot sleeve (411), while the second torsion spring foot (442) of the locking tooth plate actuation shaft anti-misfire torsion spring (44) abuts against the lower end of the locking tooth plate actuation shaft pressure plate (42).

6. The manually adjustable car seat slide rail according to claim 5, characterized in that: A pair of rivet holes (23) are provided on the upper slide rail (2) and at the position corresponding to the left of the locking tooth plate actuating block fixing screw (3311); the upper end of the manual unlocking handle pivot connecting seat fixing plate (41) is riveted to the upper slide rail (2) by a pair of manual unlocking handle pivot connecting seat fixing plate rivets (412) at the position corresponding to the pair of rivet holes (23); a torsion spring foot is formed at the lower end of the manual unlocking handle pivot connecting seat fixing plate (41) and at the position below the front side of the pivot bushing (411) at the end of the handle tube shaft. The first torsion spring foot (441) abuts against the right side of the torsion spring foot abutting flange (413). A torsion spring foot abutting groove (421) is formed on the lower right side of the locking tooth plate actuating shaft pressure plate (42). The second torsion spring foot (442) abuts against the torsion spring foot abutting groove (421). A pressure plate limiting claw (422) extends downward from the lower left side of the locking tooth plate actuating shaft pressure plate (42). The right side of the pressure plate limiting claw (422) abuts against the left side of the torsion spring foot abutting flange (413).

7. The manually adjustable car seat slide rail according to claim 1, 4, or 5, characterized in that: The spacing (S) for preventing abnormal triggering is less than 3mm.

8. The manually adjustable car seat slide rail according to claim 1, characterized in that: At the lower end of the groove wall (111) of the lower slide rail groove (11) of the lower slide rail (1), there are a left stop flange (1113) and a right stop flange (1114) of the lower slide rail. The area between the left and right stop flanges (1113, 1114) of the lower slide rail constitutes the effective sliding area of ​​the upper slide rail. On both sides below the middle part of the upper slide rail (2) in the length direction, there is an upper slide rail sliding stroke limiting foot (24) at a corresponding position. When the upper slide rail sliding stroke limiting foot (24) contacts the right side of the left stop flange (1113) of the lower slide rail, the upper slide rail (2) moves to the left to the limit. When the upper slide rail sliding stroke limiting foot (24) contacts the left side of the right stop flange (1114) of the lower slide rail, the upper slide rail (2) moves to the right to the limit.

9. The manually adjustable car seat slide rail according to claim 2, characterized in that: The ball backlash elimination mechanism (5) includes a ball retainer (51) and balls (52). The ball retainer (51) is disposed in the space between the upper slide rail flange (21) of the upper slide rail (2) and the opposite side of the outer wall of the lower slide rail (1). A plurality of balls (52) are distributed at the left and right ends of the ball retainer (51). The balls (52) make the upper slide rail (2) and the lower slide rail (1) form a sliding pair with each other.

10. A car seat, characterized in that: The car seat slide rail is equipped with the manually adjustable control as described in claim 1.

Images