Manual seat rail

Abstract

The present invention relates to the technical field of seat rails, and discloses a manual seat rail comprising an outer rail and an inner rail slidably arranged inside the outer rail, wherein the outer rail is provided with a plurality of locking grooves distributed along the length direction of the outer rail, and the inner rail is provided with notches on both sides, and the inner rail is provided with an unlocking rod, a return spring 1 and a return spring 2, and locking claws on both sides of which pass through the notches and contact the unlocking rod. The present invention has the following advantages and effects: the hook on the operating rod is hooked on the rod of the return spring 2, thereby preventing the operating rod from falling off during use. Support shafts are formed at both ends of the return spring 1, and the support shafts pass through the through-hole on the unlocking rod and the through-hole on the inner rail to realize the hinged connection between the unlocking rod and the inner rail. The manual seat rail comprises an outer rail, an inner rail, an unlocking rod, a locking claw, a return spring 1, a return spring 2, and an operating rod, wherein the return spring 1 and the return spring 2 are respectively formed by bending an elastic steel wire, with few parts and a sophisticated structural design, which facilitates assembly in the production and manufacturing process.

Description

Technical Field

[0001] The present invention relates to the technical field of seat guide rails, in particular to a manual seat guide rail. Background Art

[0002] The vehicle seat rail is installed between the seat and the vehicle floor and is used to adjust the position of the seat in the vehicle. The Chinese invention patent with authorization publication number CN101244704B discloses a seat rail and its device and a seat rail comprising the seat rail or its device. The Chinese invention application with application publication number CN103587436A discloses a seat rail assembly, a method for manufacturing the same and a vehicle seat assembly. The Chinese invention application with application publication number CN109715438A discloses a rail and a vehicle seat. The above-mentioned prior arts all disclose seat rail structures, but because their rail structures involve many small parts, manual assembly is used in the production and manufacturing process, which requires a lot of manpower and energy during assembly. Summary of the Invention

[0003] The object of the present invention is to provide a manual seat guide rail which has the effects of fewer parts and convenient assembly.

[0004] The above-mentioned technical objectives of the present invention are achieved through the following technical solutions: a manual seat guide rail, comprising an outer rail and an inner rail slidably arranged in the outer rail, the outer rail being provided with a plurality of locking grooves distributed along the length direction of the outer rail, and notches being provided on both sides of the inner rail, an unlocking rod hinged in the middle part of the inner rail, a return spring 1 and a return spring 2 at one end connected to the unlocking rod and the other end resting on the inner rail, a locking claw with claws on both sides passing through the notch and contacting the unlocking rod, the elastic force of the return spring 1 driving the unlocking rod to rest on the inner rail, the middle part of the return spring 1 pressing on the locking claw so that the locking claw claw is embedded in the locking groove, the unlocking rod is provided with a mounting position and an operating lever inserted into the mounting position, the operating lever is used to drive the unlocking rod to rotate and then drive the locking claw to move to disengage from the locking groove.

[0005] By employing this technical solution, the elastic force of return spring 1 drives the claw of the locking pawl out of the notch in the inner rail and into the locking groove in the outer rail, securing the inner and outer rails in place. To unlock, after inserting the operating lever into its mounting position, the operating lever is toggled to cause the unlocking lever to pivot about the hinge point. The unlocking lever then moves the locking pawl out of the locking groove in the outer rail, unlocking the seat and allowing the inner and outer rails to slide relative to each other. When the manual seat rail is in use, the outer rail is mounted on the vehicle floor, while the inner rail is fixed to the seat.

[0006] The present invention is further configured as follows: the return spring is an elastic steel wire bent into a "U" shape and the two ends are bent outward to form a support shaft, through holes are provided on both sides of the unlocking rod, and through holes are provided on both sides of the inner rail, and each of the support shafts passes through the through hole and the through hole in turn.

[0007] By adopting this technical solution, the first return spring is formed from a single elastic steel wire, making it easy to assemble with other parts. Support shafts are formed at both ends of the first return spring. The support shafts pass through the through-holes of the release lever and the through-holes of the inner rail, achieving an articulated connection between the release lever and the inner rail. No additional parts are required to achieve this articulated connection between the release lever and the inner rail.

[0008] The present invention is further configured as follows: two clamping seats are fixed on the locking claw, the clamping seats are provided with clamping slots, and the return spring is embedded in the clamping slots.

[0009] By adopting the above technical solution, the reset spring 1 is embedded in the card slot, which fixes the position of the reset spring 1 and avoids the reset spring 1 and the locking claw from being misaligned or separated during use.

[0010] The present invention is further configured as follows: a limiting portion is formed on the inner wall of the inner rail, a limiting groove is provided on the limiting portion, and a portion of the return spring away from the unlocking rod is stuck in the limiting groove.

[0011] The present invention is further configured as follows: the second reset spring is formed by bending an elastic steel wire multiple times; a plurality of mounting grooves are provided in the unlocking rod; and the second reset spring is embedded in the mounting grooves.

[0012] By adopting the above technical solution, the second return spring is also formed by bending a steel wire, which is convenient for assembly with other parts.

[0013] The present invention is further configured as follows: a mounting hole is provided on one side of the unlocking lever, and a mounting groove 1 is provided on the other side; one end of the return spring 2 is inserted into the mounting hole; and the return spring 2 is formed with a first bending portion embedded in the mounting groove 1.

[0014] The present invention is further configured as follows: the unlocking lever is formed with a second mounting groove on one side of the mounting hole, and the second return spring is formed with a second bent portion embedded in the second mounting groove.

[0015] The present invention is further configured as follows: side panels and pressure plates formed on the side panels are formed on both sides of the unlocking lever, and the mounting position is formed between the side panels and the pressure plates.

[0016] The present invention is further configured as follows: a hook portion is provided on the operating lever, and the second return spring is located in the installation position and is formed with a rod portion for the hook portion to hook onto.

[0017] By adopting the above technical solution, after the joystick is inserted into the installation position, the rod portion is hooked to prevent the joystick from being separated from the installation position.

[0018] The present invention is further configured as follows: the unlocking rod is formed with an unlocking end that abuts against the end surface of the locking claw, and the claw portions of the locking claw are located on both sides and are multiple in number.

[0019] The present invention has the following beneficial effects: the hook on the operating lever hooks onto the rod of the second return spring, preventing the operating lever from falling off during use. Support shafts are formed at both ends of the first return spring, which pass through a perforation in the unlocking lever and a through-hole in the inner rail, achieving an articulated connection between the unlocking lever and the inner rail. The manual seat rail comprises an outer rail, an inner rail, an unlocking lever, a locking claw, a first return spring, a second return spring, and an operating lever. Each of the first and second return springs is formed by bending a single elastic steel wire, resulting in a minimal number of parts and a sophisticated structural design, facilitating assembly during manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a structural diagram of an embodiment.

[0022] Figure 2 It is a schematic structural diagram of the outer rail, inner rail and unlocking lever of the embodiment.

[0023] Figure 3 Schematic diagram of the positional relationship among the inner rail, locking claw, unlocking lever, return spring 1, and return spring 2 of the embodiment.

[0024] Figure 4 Schematic diagram of the structural relationship between the unlocking lever, the second return spring, and the operating lever in the embodiment.

[0025] In the figure, 1. outer rail; 11. locking slot; 2. inner rail; 21. notch; 22. through hole; 23. limit portion; 231. limit slot; 3. unlocking lever; 31. rod body; 32. side panel; 321. mounting hole; 322. mounting slot 1; 323. mounting slot 2; 324. through hole; 33. mounting position; 34. pressure plate; 4. locking claw; 41. claw body; 42. claw portion; 43. holder; 431. slot; 5. return spring 1; 51. support shaft; 6. return spring 2; 61. first bending portion; 62. second bending portion; 63. rod portion; 7. operating lever; 71. hook portion. DETAILED DESCRIPTION

[0026] The technical solutions of the present invention will be described clearly and completely below with reference to specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0027] Example: Manual seat rails, such as Figures 1 to 4 As shown, it includes an outer rail 1 and an inner rail 2 that is slidably arranged in the outer rail 1. The outer rail 1 has multiple locking grooves 11 distributed along the length direction, and notches 21 are provided on both sides of the inner rail 2. An unlocking rod 3, a return spring 1 5, a return spring 2 6, and a locking claw 4 are installed in the inner rail 2. The locking claw 4 includes a claw body 41 and multiple claws 42 fixed on both sides of the claw body 41. The return spring 1 5 is a steel wire bent into a "U" shape, and the two ends are bent and extended outward to form a support shaft 51. The unlocking rod 3 includes a rod body 31 and side plates 32 on both sides of the rod body 31. The side plates 32 on both sides of the unlocking rod 3 are provided with through holes 324. The inner rail 2 has through holes 22 on both sides. The support shaft 51 passes through the through holes 324 and the through holes 22 in sequence to realize the hinged connection between the unlocking rod 3 and the inner rail 2.

[0028] like Figure 3 、 Figure 4 As shown, the inner rail 2 has an integrally formed inner wall with a limit portion 23, which defines a limit slot 231. The portion of the return spring 5, away from the unlocking lever 3, is embedded in the limit slot 231. One end of the unlocking lever 3 serves as the unlocking end, which abuts against the locking pawl 4. The locking pawl 4 is secured with two retaining blocks 43, each of which defines a retaining slot 431. The return spring 5 is embedded in the two retaining slots 431, so that the center of the return spring 5 exerts elastic force on the locking pawl 4, causing the claw portion 42 of the locking pawl 4 to pass through the notch 21 and then embed within the locking slot 11.

[0029] like Figure 4 As shown, the return spring 2 6 is also formed by bending a steel wire multiple times. The return spring 2 6 is formed with a first bending portion 61, a second bending portion 62, and a rod portion 63. One side plate 32 of the unlocking rod 3 is provided with a mounting hole 321 and a second mounting groove 323, and the other side plate 32 is provided with a first mounting groove 322. One end of the return spring 2 6 passes through the mounting hole 321, the first bending portion 61 is embedded in the first mounting groove 322, and the second bending portion 62 is embedded in the second mounting groove 323.

[0030] like Figure 4As shown, the end of the unlocking lever 3, away from the unlocking end, is the operating end. This end has a mounting position 33, into which the operating lever 7 is inserted. The side panels 32 of the unlocking lever 3 are formed with pressure plates 34, forming the mounting position 33 between the side panels 32 and the pressure plates 34. The rod 63 of the return spring 6 is located within the mounting position 33. The operating lever 7 has a hook 71 formed on it, which is used to hook onto the rod 63 to prevent the operating lever 7 from falling off.

[0031] Working Principle: When using manual seat rails, the outer rail 1 is mounted on the vehicle's interior floor, and the inner rail 2 is connected to the seat. To adjust the seat position, the joystick 7 is toggled to flip the unlocking lever 3. The unlocking lever 3 then moves the locking pawl 4, causing its claw portion 42 to disengage from the locking groove 11 on the outer rail 1. This allows the inner rail 2 and outer rail 1 to slide relative to each other, adjusting the seat position. When the seat is adjusted to the desired position, the joystick 7 is released. The return spring 2 6 resets the joystick 7, which in turn resets the lock pawl 4 5, causing its claw portion 42 to reengage the locking groove 11 on the outer rail 1. The inner rail 2 and outer rail 1 are now fixed relative to each other, and the seat is also fixed relative to the vehicle's interior floor.

Claims

1. A manual seat guide rail comprising an outer rail (1) and an inner rail (2) slidably arranged within the outer rail (1), characterized in that: The outer rail (1) is provided with a plurality of locking grooves (11) distributed along the length direction of the outer rail (1), and notches (21) are provided on both sides of the inner rail (2). The inner rail (2) is provided with an unlocking rod (3) whose middle part is hinged to the inner rail (2), a return spring (5) and a return spring (6) whose one end is connected to the unlocking rod (3) and the other end is against the inner rail (2), and a locking claw (4) which is in contact with the unlocking rod (3) and whose claws (42) on both sides pass through the notches (21). The elastic force of the return spring (5) drives the unlocking rod (3) to be against the inner rail (2), and the middle part of the return spring (5) presses on the locking claw (4) so that the claw (42) of the locking claw (4) is embedded in the locking groove (11). ) is provided with a mounting position (33) and an operating rod (7) inserted into the mounting position (33), the operating rod (7) is used to drive the unlocking rod (3) to rotate and then drive the locking claw (4) to move to disengage from the locking groove (11); the reset spring (5) is an elastic steel wire bent into a "U" shape and the two ends are bent and extended outward to form a support shaft (51), the unlocking rod (3) is provided with a through hole (324) on both sides, the inner rail (2) is provided with a through hole (22) on both sides, and each of the support shafts (51) passes through the through hole (324) and the through hole (22) in sequence; the operating rod (7) is provided with a hook portion (71), and the reset spring (6) is located in the mounting position (33) and forms a rod portion (63) for the hook portion (71) to hook.

2. The manual seat rail according to claim 1, characterized in that: Two clamping seats (43) are fixed on the locking claw (4), and a clamping slot (431) is provided on the clamping seat (43), and the return spring (5) is embedded in the clamping slot (431).

3. The manual seat guide rail according to claim 1 or 2, characterized in that: A limiting portion (23) is formed on the inner wall of the inner rail (2), and a limiting groove (231) is provided in the limiting portion (23). The portion of the return spring (5) away from the unlocking rod (3) is stuck in the limiting groove (231).

4. The manual seat rail according to claim 1, characterized in that: The return spring 2 (6) is formed by bending an elastic steel wire multiple times.

5. The manual seat rail according to claim 4, characterized in that: The unlocking rod (3) is provided with a mounting hole (321) on one side and a mounting groove (322) on the other side. One end of the return spring (6) is inserted into the mounting hole (321). The return spring (6) is formed with a first bending portion (61) embedded in the mounting groove (322).

6. The manual seat rail according to claim 5, characterized in that: The unlocking rod (3) is formed with a second mounting groove (323) on one side of the mounting hole (321), and the second return spring (6) is formed with a second bent portion (62) embedded in the second mounting groove (323).

7. The manual seat rail according to claim 1, characterized in that: Side plates (32) and pressure plates (34) formed on the side plates (32) are formed on both sides of the unlocking rod (3), and the mounting position (33) is formed between the side plates (32) and the pressure plates (34).

8. The manual seat rail according to claim 1, characterized in that: The unlocking rod (3) is formed with an unlocking end that abuts against the end surface of the locking claw (4), and the claw portions (42) of the locking claw (4) are located on both sides and are multiple in number.

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