CN110626227A - Sliding rail of automobile seat - Google Patents
Sliding rail of automobile seat Download PDFInfo
- Publication number
- CN110626227A CN110626227A CN201911054124.7A CN201911054124A CN110626227A CN 110626227 A CN110626227 A CN 110626227A CN 201911054124 A CN201911054124 A CN 201911054124A CN 110626227 A CN110626227 A CN 110626227A
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- China
- Prior art keywords
- slide rail
- locking
- tooth
- locking claw
- strip
- Prior art date
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- 210000000078 claw Anatomy 0.000 claims abstract description 99
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000009471 action Effects 0.000 claims abstract description 22
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000033001 locomotion Effects 0.000 description 8
- 239000011295 pitch Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/08—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable characterised by the locking device
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention relates to a slide rail of an automobile seat, which comprises two groups of slide rail assemblies, wherein each slide rail assembly comprises an inner slide rail, an outer slide rail and a locking part, and each locking part comprises a locking mechanism and an unlocking mechanism; the locking mechanism comprises a locking claw and a locking spring, the outer slide rail is provided with strip-shaped teeth along the length direction, the strip-shaped teeth comprise tooth structures with different heights arranged in a staggered mode at intervals, the top of the locking claw penetrates through the top wall of the inner slide rail, the bottom of the locking claw is bent and provided with locking teeth matched with the tooth structures, and the locking teeth penetrate through the side wall of the inner slide rail and can move towards the strip-shaped teeth under the action of the locking spring to be meshed with the tooth structures; the unlocking mechanism comprises an adjusting piece and a return spring, the adjusting piece can act on the top end of the locking claw to enable the locking tooth to move towards one side far away from the strip-shaped tooth and to be separated from the tooth structure, and the return spring can act on the adjusting piece to be separated from the locking claw. When the front position and the rear position of the seat are manually adjusted, the slide rail can be quickly locked when the slide rail is instantly impacted in an unlocking state, and safety of passengers is protected.
Description
Technical Field
The invention relates to the technical field of accessories for automobile seats, in particular to a sliding rail for an automobile seat.
Background
When the automobile seat is used, the front position and the rear position of the automobile seat are often required to be adjusted through the slide rail according to the requirements of different passengers, specifically, when the automobile seat is adjusted, the passenger forgets to lock the slide rail, or when the automobile is in an unlocking state, the passenger adjusts the front position and the rear position of the seat, and the slide rail is in an unlocking state, the seat is impacted instantaneously due to the fact that the automobile is subjected to emergency braking and the like, the slide rail cannot be locked, the seat moves forwards for a large distance, and the passenger can be injured.
Therefore, how to solve the technical problem that the technical personnel in the field need to solve when the front and back positions of the seat are manually adjusted and the slide rail is instantly impacted in an unlocking state, the slide rail can be quickly locked to protect the safety of passengers.
Disclosure of Invention
The invention aims to provide a slide rail of an automobile seat, which can be quickly locked when the front and rear positions of the seat are manually adjusted and the slide rail is subjected to instant impact in an unlocking state, so that the safety of passengers is protected.
In order to solve the technical problems, the invention provides a slide rail of an automobile seat, which comprises two groups of slide rail assemblies which are arranged in parallel, wherein each slide rail assembly comprises an inner slide rail, an outer slide rail and a locking part arranged between the inner slide rail and the outer slide rail, each locking part comprises a locking mechanism and an unlocking mechanism, and the inner slide rail can slide relative to the outer slide rail; the locking mechanism comprises a locking claw and a locking spring, the outer slide rail is provided with strip-shaped teeth along the length direction, the strip-shaped teeth comprise tooth structures with different heights arranged in a staggered mode at intervals, the top of the locking claw penetrates through the top wall of the inner slide rail, the bottom of the locking claw is bent and provided with locking teeth matched with the tooth structures, and the locking teeth penetrate through the side wall of the inner slide rail and can move towards the strip-shaped teeth under the action of the locking spring to be meshed with the tooth structures; the unlocking mechanism comprises an adjusting piece and a return spring, the adjusting piece can act on the top end of the locking claw to enable the locking tooth to move towards one side far away from the strip-shaped tooth and be separated from the tooth structure, and the return spring can act on the adjusting piece and be separated from the locking claw.
When the passenger does not operate the adjusting piece, the locking claw can keep the locking teeth meshed with the tooth structure under the action of the locking spring, at the moment, the locking mechanism is in a locking state, and the seat cannot move forwards and backwards. When the passenger acts on the adjusting part, the passenger can act on the locking claw from the top end to enable the locking tooth of the locking claw to be separated from the tooth structure, at the moment, the inner sliding rail and the outer sliding rail are in an unlocking state, the passenger can move the seat back and forth to change the position of the inner sliding rail relative to the outer sliding rail, after the seat is adjusted to a proper position, the passenger can withdraw from the action on the adjusting part, at the moment, the reset spring can act on the adjusting part to enable the adjusting part not to be separated from the locking claw any more, and the locking claw can move towards one side of the strip-shaped tooth under the action of the locking spring and is meshed with the tooth structure, so that the inner sliding rail and the outer.
Wherein, locking spring and reset spring's setting, the regulation of this seat of being more convenient for, when the front and back position of seat is adjusted to needs, passenger's manual operation regulating part, and adjust to suitable position after, only need withdraw from the effect to the regulating part, can realize the locking through locking spring and reset spring's restoring force, it is comparatively convenient to operate.
Specifically, the strip-shaped teeth comprise tooth structures which are arranged at intervals in a staggered mode and have different heights, and the strip-shaped teeth comprise first teeth and second teeth which are sequentially arranged at intervals, wherein the heights of the first teeth are higher than those of the second teeth; that is to say, the heights of the bar-shaped teeth are different, when the outer slide rail and the inner slide rail are in an unlocking state, the locking teeth of the locking claw are separated from the bar-shaped teeth, after the external force action is removed, the locking claw can be abutted against the end surface of the tooth structure to enable the tooth structure and the inner slide rail to be in a critical state (the inner slide rail and the outer slide rail are in a critical unlocking state and can slide relatively), at the moment, if the seat moves forwards and backwards and does not move rapidly, the locking teeth of the locking claw can fall into two adjacent tooth structures (the bar-shaped teeth comprise a plurality of tooth structures meshed with the locking teeth) under the action of the locking spring to be meshed with the tooth structures in the process that the inner slide rail moves relative; if the seat receives impact (for example, external force or inertia acting force during emergency braking of a vehicle) in the front-back direction, the front-back position of the seat is changed rapidly, between the tooth pitches of two adjacent tooth structures, the lock tooth can not be engaged with the tooth structures when moving upwards under the action of the locking spring, but because the first tooth and the second tooth at different heights are arranged at intervals, the lock tooth needs to move two tooth pitches between one first tooth and the next first tooth, and then more time can be provided for the locking spring so as to drive the lock claw to move enough distance and abut against the side wall of the next first tooth, namely, the front-back movement of the lock claw is blocked, at the moment, the lock claw can continue to move under the action of the locking spring to be engaged with the tooth structures, and the locking of the positions of the inner slide rail and the outer slide rail is realized. So set up, can avoid the seat to take place great front and back displacement, guarantee passenger's safety.
Optionally, the unlocking mechanism further comprises a fixed plate fixedly connected with the inner sliding rail and a rotating shaft arranged on the fixed plate, the adjusting piece can wind around the rotating shaft relative to the fixed plate, one end of the adjusting piece is connected with the operating rod, the other end of the adjusting piece can act on the top end of the locking claw, and the operating rod can drive the adjusting piece to wind around the rotating shaft and drive the locking claw to move towards one side far away from the bar-shaped teeth.
Optionally, a baffle is arranged at the top end of the fixing plate, and the baffle is used for limiting the rotation of the adjusting piece.
Optionally, the lower end face of the baffle is also provided with a cushion pad.
Optionally, the locking portion further includes a plastic head, a top end of the locking claw penetrates through a top wall of the inner slide rail and is fixedly inserted into the plastic head, and the adjusting member can act on the plastic head to disengage the locking tooth from the tooth structure.
Optionally, the plastic head is further provided with an observation hole for observing the position of the top end of the locking claw inserted into the plastic head.
Optionally, the return spring is a torsion spring sleeved outside the rotating shaft, and the torsion arms at the two ends of the torsion spring are fixed to the fixing plate and the adjusting piece respectively.
Optionally, the side wall of the inner slide rail is also provided with a strip-shaped mounting hole, and the inner wall of the locking claw is also provided with a clamping piece; the locking spring is a clamp spring with bending sections at two ends, the two bending sections correspondingly penetrate through the two strip-shaped mounting holes, and the middle portion of the clamp spring is abutted to the clamping piece and can push the clamping piece to push the locking claw to move towards one side far away from the strip-shaped teeth.
Optionally, the number of the locking parts is two, and the two locking parts are symmetrically arranged about an axis of the inner slide rail in the length direction.
Optionally, the locking portion further includes a limiting piece fixed to an inner wall of the inner slide rail, and the limiting piece can abut against the locking claw to prevent the locking claw from rotating.
Optionally, the outer slide rail is further provided with two limiting parts along the length direction, and a sliding space of the limiting piece is formed between the two limiting parts.
Drawings
Fig. 1 is a schematic structural view of a slide rail of a vehicle seat provided in an embodiment of the present invention;
FIG. 2 is a schematic structural view of the slide rail assembly of FIG. 1;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is a top view of FIG. 2;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
FIG. 6 is a schematic view of a portion of the structure of FIG. 2;
FIG. 7 is a schematic structural view of the locking tooth and tooth arrangement with the inner and outer tracks in a locked condition;
FIG. 8 is a schematic structural view of the locking teeth and tooth arrangement with the inner and outer slide rails in a critical unlocked state;
FIG. 9 is a side view of FIG. 2;
FIG. 10 is a schematic view of the internal structure of FIG. 2;
FIG. 11 is a partial schematic structural view of the inner slide rail;
FIG. 12 is a schematic view of the structure of the locking pawl;
FIG. 13 is a schematic structural view of a plastic head;
fig. 14 is a schematic structural view of the spacing piece.
In the accompanying fig. 1-14, the reference numerals are illustrated as follows:
100-a slide rail assembly; 200-a lever;
1-inner slide rail, 11-strip-shaped mounting hole, 12-perforation;
2-outer slide rail, 21-bar tooth, 211-tooth structure, 212-first tooth, 213-second tooth, 22-limit piece;
3-locking mechanism, 31-locking claw, 311-locking tooth, 312-clamping piece and 32-locking spring;
4-an unlocking mechanism, 41-an adjusting piece, 42-a return spring, 43-a fixing plate, 431-a baffle, 44-a cushion pad and 45-a rotating shaft;
5-plastic head, 51-jack, 52-observation hole;
6-limiting sheet, 61-limiting plate;
7-sliding part.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the slide rail of the vehicle seat includes two sets of slide rail assemblies 100 arranged in parallel, the two sets of slide rail assemblies 100 are correspondingly arranged between the bottom end of the seat and the vehicle body, and a passenger can simultaneously act on the two sets of slide rail assemblies 100 through an operating rod 200 to adjust the front and rear positions of the seat.
Specifically, as shown in fig. 2 to 6, the slide rail assembly 100 includes an inner slide rail 1, an outer slide rail 2, and a locking portion disposed between the inner slide rail 1 and the outer slide rail 2, where the locking portion includes an unlocking mechanism 4 and a locking mechanism 3, the inner slide rail 1 can slide relative to the outer slide rail 2, the inner slide rail 1 is fixed to the bottom end of the seat, the outer slide rail 2 is fixed to the vehicle body, the locking mechanism 3 is used to lock the relative positions of the inner slide rail 1 and the outer slide rail 2, the unlocking mechanism 4 is used to unlock the locking function of the locking mechanism 3, so that the inner slide rail 1 can slide relative to the outer slide rail 2, and the passenger can adjust the front and rear positions of.
The locking mechanism 3 comprises a locking claw 31 and a locking spring 32, the outer slide rail 2 is provided with a bar-shaped tooth 21 along the length direction, the bar-shaped tooth 21 comprises tooth structures 211 which are arranged at intervals in a staggered mode and are different in height, the top wall of the inner slide rail 1 is penetrated through the top of the locking claw 31, the bottom of the locking claw is bent and provided with a locking tooth 311 matched with the tooth structures 211, and the axis of the locking tooth 311 is perpendicular to the axis of the tooth structures 211, so that the locking tooth 311 can move up and down and is meshed with and separated from the tooth structures 211. The side wall of the inner slide rail 1 is provided with a through hole 12, and the locking tooth 311 passes through the through hole 12 of the inner slide rail 1 and can move to one side of the strip-shaped tooth 21 under the action of the locking spring 32 to be engaged with the tooth structure 211, so as to limit the relative position of the inner slide rail 1 and the outer slide rail 2 in the front-back direction (the length direction of the inner slide rail 1 and the outer slide rail 2). The unlocking mechanism 4 comprises an adjusting piece 41 and a return spring 42, wherein the adjusting piece 41 can act on the top end of the locking claw 31 to enable the locking tooth 311 to move to the side far away from the strip-shaped tooth 21 and be separated from the tooth structure 211, and the return spring 42 can act on the adjusting piece 41 to be separated from the locking claw 31.
That is, when the occupant does not operate the adjuster 41, the locking pawl 31 can keep the locking tooth 311 engaged with the tooth structure 211 under the action of the locking spring 32, and the locking mechanism 3 is in the locked state, so that the seat cannot move forward and backward. When the passenger acts on the adjusting part 41 to enable the passenger to act on the locking claw 31 from the top end, the locking tooth 311 of the locking claw 31 is separated from the tooth structure 211, at the moment, the inner slide rail 1 and the outer slide rail 2 are in an unlocked state, the passenger can move the seat back and forth to change the position of the inner slide rail 1 relative to the outer slide rail 2, after the seat is adjusted to a proper position, the action on the adjusting part 41 can be removed, at the moment, the return spring 42 can act on the adjusting part 41 to enable the adjusting part 41 not to be separated from the locking claw 31, and the locking claw 31 can move to one side of the strip-shaped tooth 21 under the action of the locking spring 32 and is meshed with the tooth structure 211, so that the inner slide rail 1 and the outer slide rail 2 are.
Wherein, locking spring 32 and reset spring 42's setting, the regulation of this seat of being more convenient for, when the front and back position of seat was adjusted to needs, passenger's manual operation regulating part 41, and adjust to suitable position after, only need withdraw from the effect to regulating part 41, can realize the locking through locking spring 32 and reset spring 42's restoring force, it is comparatively convenient to operate.
Specifically, the bar-shaped teeth 21 include tooth structures 211 arranged at different heights in a staggered manner, as shown in fig. 7 and 8, the bar-shaped teeth 21 in the present embodiment include a first tooth 212 and a second tooth 213 arranged at intervals in sequence, wherein the height of the first tooth 212 is higher than that of the second tooth 213; that is, the heights of the bar-shaped teeth 21 are different, when the outer slide rail 2 and the inner slide rail 1 are in the unlocked state, the locking tooth 311 of the locking claw 31 is disengaged from the bar-shaped teeth 21, and after the external force is removed, the locking claw 31 may abut against the end surface of the tooth structure 211 to enable the tooth structure 211 to be in a critical state (as shown in fig. 8, the inner slide rail 1 and the outer slide rail 2 are in a critical unlocked state, and the inner slide rail 1 and the outer slide rail 2 can slide relatively), at this time, if the seat moves forward and backward and does not move abruptly, during the movement of the inner slide rail 1 relative to the outer slide rail 2, the locking tooth 311 of the locking claw 31 can fall into between two adjacent tooth structures 211 (the bar-shaped teeth 21 include a plurality of tooth structures 211 engaged with the locking tooth 311) under the action of; if the seat receives impact in the front-back direction (such as external force or inertia force during emergency braking of the vehicle) and the like, the front-back position of the seat is rapidly changed, between the pitches of two adjacent tooth structures 211, the locking tooth 311 may have to move upwards under the action of the locking spring 32 to get out of engagement with the tooth structure 211, however, since the first teeth 212 and the second teeth 213 with different heights are spaced, the locking tooth 311 needs to move two pitches from one first tooth 212 to the next first tooth 212, thereby providing more time for the locking spring 32 to move the locking pawl 31 a sufficient distance and abut the side wall of the next first tooth 212, namely, the front and back movement of the locking claw 31 is hindered, at this time, the locking claw 31 can continue to move under the action of the locking spring 32 until the tooth structures 211 are engaged, so as to lock the positions of the inner slide rail 1 and the outer slide rail 2. So set up, can avoid the seat to take place great front and back displacement, guarantee passenger's safety.
Certainly, in this embodiment, the first teeth 212 and the second teeth 213 may be sequentially arranged at intervals in a staggered manner, that is, one second tooth 213 is arranged between two adjacent first teeth 212, and one first tooth 212 is arranged between two adjacent second teeth 213, so that in a critical state, when the seat is impacted in the front-back direction, the inner slide rail 1 and the outer slide rail 2 may lock the relative position in two tooth spaces, or two second teeth 213 may be arranged between two adjacent first teeth 212, at this time, in a critical state, when the seat is impacted in the front-back direction, the inner slide rail 1 and the outer slide rail 2 may lock the relative position in at most three tooth spaces. Alternatively, in the present embodiment, three or more second teeth 213 may be disposed between two first teeth 212, or the bar-shaped teeth 21 may be disposed to include three or more tooth structures 211 with different heights, which is not limited in particular.
In the present embodiment, the movement of the locking claw 31 is in the up-down direction (i.e. the height direction of the seat), and specifically, the locking claw 31 may move from the down direction to the locking tooth 311 engaged with the tooth structure 211 as shown in fig. 7 and 8, and when the upward movement of the locking claw 31 is directed toward the bar-shaped tooth 21, the downward movement of the locking claw 31 is directed away from the bar-shaped tooth 21; it is also possible that the locking claw 31 is moved downwards from above until the locking tooth 311 engages with the tooth structure 211, and that the locking claw 31 is moved upwards when the locking claw 31 is moved downwards in a direction towards the bar tooth 21, and is moved upwards in a direction away from the bar tooth 21. For convenience of description, the following description will be given by taking the case where the locking claw 31 moves from the lower direction to the case where the locking tooth 311 engages with the tooth structure 211 as an example, and at this time, the adjusting member 41 can press the locking claw 31 from the tip to move the locking claw 31 downward (to the side away from the bar-shaped tooth 21) until the locking tooth 311 disengages from the tooth structure 211, and the locking spring 32 can act on the locking claw 31 to move it upward (to the side of the bar-shaped tooth 21) until the locking tooth 311 engages with the tooth structure 211. In the above embodiment, the unlocking mechanism 4 further includes a fixed plate 43 and a rotating shaft 45 disposed on the fixed plate 43, wherein the fixed plate 43 is fixedly connected to the inner slide rail 1, the adjusting member 41 can rotate around the rotating shaft 45 relative to the fixed plate 43, one end of the adjusting member 41 is connected to the operating rod 200, the other end of the adjusting member 41 can act on the top end of the locking claw 31, and the operating rod 200 can drive the adjusting member 41 to rotate and press down the locking claw 31. That is to say, the adjusting part 41 is equivalent to the structure of a rocker, the pivot of the rocker is formed at the rotating shaft 45, when the passenger needs to adjust the front and back position of the seat, only the operating rod 200 needs to be manually operated to lift the adjusting part 41 towards one end of the operating rod 200, the operating rod 200 moves downwards towards one end of the locking claw 31 and presses the locking claw 31 downwards from the top end to separate the locking tooth 311 from the tooth structure 211, and then the unlocking between the inner slide rail 1 and the outer slide rail 2 is realized, so that the structure is simple, and the unlocking operation of the passenger can be simplified.
Specifically, the rotating shaft 45 may be formed by a rotating rivet disposed on the fixing plate 43, the rotating rivet includes a step structure, the fulcrum of the adjusting member 41 is sleeved outside the step structure, and the rotating rivet is riveted on the fixing plate 43, so that the adjusting member 41 and the fixing plate 43 can flexibly rotate. The adjusting member 41 may be a rod-like structure or a sheet-like structure, and is not particularly limited herein.
Further, a stopper 431 is provided at the top end of the fixed plate 43, the stopper 431 is used for limiting the rotation of the adjuster 41, when the occupant manually operates the operating lever 200 to make the adjuster 41 rotate around the rotating shaft 45 to abut against the stopper 431, namely, the front and rear positions of the seat can be adjusted, the stopper 431 can be provided for prompting the operation of the occupant, and can also be used for displaying the rotation angle of the adjuster 41, so that the situation that the adjuster 41 cannot return due to an excessively large rotation angle can be avoided. Specifically, in the present embodiment, the specific structure of the fixing plate 43 is not limited, and may be a structure having a shape like a Chinese character 'ji' as shown in fig. 5, or a structure having two bent portions.
Furthermore, the lower end surface of the baffle 431 is further provided with a cushion pad 44, when the adjusting piece 41 rotates and drives the locking claw 31 to move upwards, one end of the adjusting piece 41 facing the locking claw 31 can be abutted against the cushion pad 44, so that noise generated by rigid collision between the adjusting piece 41 and the baffle 431 is avoided, and the comfort is good.
In the above embodiment, the reset spring 42 is a torsion spring sleeved outside the rotating shaft 45, two ends of the torsion spring are respectively provided with a torsion arm, the two torsion arms are respectively fixed with the fixing plate 43 and the adjusting part 41, when the adjusting part 41 rotates, the torsion spring can be twisted, and after withdrawing from the action on the adjusting part 41, the restoring force of the torsion spring can drive the adjusting part 41 to rotate, so that the installation setting of the reset spring 42 can be simplified, and the whole structure is further simplified. Moreover, the two torsion arms are respectively provided with a bending structure, so that the return spring 42 can be prevented from being pulled out after being installed, and after the action of external force is removed, the return spring 42 can keep one end of the adjusting piece 41 facing the locking claw 31 to be abutted against the cushion pad 44, so that the adjusting piece 41 is prevented from pressing the locking claw 31 under the action of gravity.
In the above embodiment, the locking portion further includes the plastic head 5, the adjusting member 41 can press the plastic head 5 downward to separate the locking teeth 311 from the tooth structure 211, and the top end of the locking claw 31 passes through the top wall of the inner slide rail 1 and is fixed to the plastic head 5 in an inserting manner, that is, in this embodiment, the adjusting member 41 moves downward toward one end of the locking claw 31 to abut against the plastic head 5, and moves upward to abut against the rubber pad, so that noise caused by rigid collision is avoided, comfort is good, wear caused by rigid collision can be avoided, and service life is further ensured. Simultaneously, this plastic head 5 can also be spacing from the top to the pawl 31, and when adjusting part 41 pushed down plastic head 5 and made the lower terminal surface of plastic head 5 and the up end butt of interior slide rail 1, the lock tooth 311 of pawl 31 breaks away from with tooth structure 211 in order to reach the unblock state, avoids pawl 31 and interior slide rail 1 to break away from.
Further, as shown in fig. 13, the plastic head 5 is further provided with an observation hole 52 for observing the position where the top end of the locking claw 31 is inserted into the plastic head 5, the lower end surface of the plastic head 5 is provided with a jack 51 for inserting the top end of the locking claw 31, the observation hole 52 is communicated with the jack 51, the top end of the locking claw 31 penetrates through the top wall of the inner slide rail 1 to be inserted into the jack 51 of the plastic head 5, whether the insertion is in place can be observed through the observation hole 52, and the situation that the locking cannot be achieved due to the fact that the insertion is not in place can be avoided.
In the above embodiment, as shown in fig. 10-12, the side wall of the inner rail 1 is further provided with a strip-shaped mounting hole 11, and the inner wall of the locking claw 31 is further provided with a clamping piece 312; the two ends of the locking spring 32 are respectively provided with a snap spring with bent sections, the two bent sections correspondingly penetrate through the two strip-shaped mounting holes 11, the middle of the snap spring abuts against the bottom end of the snap piece 312 to jack up the locking claw 31 from the bottom upwards, when the adjusting piece 41 rotates to press the locking claw 31 downwards to enable the locking tooth 311 to be separated from the tooth structure 211, the snap spring deforms and enables the locking claw 31 to have a trend of moving upwards, and when the adjusting piece 41 rotates under the action of the reset spring 42, the locking claw 31 will move upwards under the action of the snap spring and enable the locking tooth 311 to be meshed with the tooth structure 211. Specifically, in this embodiment, the specific structure of the clip piece 312 is not limited, and may be a protrusion fixed on the inner side of the locking claw 31 or a flanging structure arranged on the inner side of the locking claw 31.
Of course, in this embodiment, the specific structure of the locking spring 32 is not limited, and if it is a coil spring, one end of the coil spring is fixedly connected to the top end of the inner wall of the inner slide rail 1, and the other end of the coil spring is fixedly connected to the top end of the locking claw 31, when the adjusting member 41 presses the locking claw 31 to make the coil spring in a stretching state, and when the adjusting member 41 rotates, the restoring force of the coil spring in the stretching state will act on the locking claw 31 to make it move upward. The locking spring 32 is a circlip, so that the whole structure can be simplified, sufficient elastic force can be ensured to act on the locking claw 31 to enable the locking claw 31 to move upwards until the locking teeth 311 are meshed with the tooth structure 211, and the locking claw is convenient to mount and good in stability.
In the above embodiment, as shown in fig. 6 and 9, the number of the locking portions is two, and the two locking portions are symmetrically arranged about the longitudinal axis of the inner slide rail 1, that is, one locking claw 31 is correspondingly arranged on each of the inner walls of the two sides of the inner slide rail 1, and one strip-shaped tooth 21 is correspondingly arranged on each of the inner walls of the two sides of the outer slide rail 2, so that the requirement for the acting force of a single locking portion can be reduced, and the two locking portions are symmetrically arranged in the inner slide rail 1, so that the overall structural stability can be better.
In the above embodiment, the locking portion further includes a limiting piece 6 fixed to the inner wall of the inner slide rail 1, the limiting piece 6 and the inner wall of the inner slide rail 1 may be fixed by welding or bolt connection, and the limiting piece 6 can abut against the locking claw 31 to prevent the locking claw 31 from rotating around the position where the top end of the locking claw 31 passes through the inner slide rail 1, so that it is ensured that the locking claw 31 can only move up and down to separate and cooperate the locking tooth 311 with the tooth structure 211, and it is avoided that the locking claw 31 rotates to make the locking tooth 311 unable to cooperate with the tooth structure 211, and stability is good.
Further, the outer slide rail 2 is further provided with two limiting members 22 along the length direction, and a space for the limiting sheet 6 to slide is formed between the two limiting members 22, that is, the limiting sheet 6 can slide between the two limiting members 22, so as to limit the moving position of the inner slide rail 1 relative to the outer slide rail 2. Specifically, the limiting member 22 may be a protrusion disposed on the inner wall of the outer slide rail 2, or may be a limiting screw or a limiting rivet, and the limiting member 22 can abut against the end of the limiting piece 6 to limit the movement of the limiting piece 6. In this embodiment, do not restrict the concrete structure of spacing piece 6, as shown in fig. 14, set up spacing piece 6 into the structure that both ends are equipped with limiting plate 61 respectively, the limiting plate 61 parallel arrangement at both ends sets up along the relative direction of outer slide rail 2 both sides wall, and the limiting plate 61 of the spacing piece 6 of two sets of lockouts portion cup joints, and two limiting plates 61 of a spacing piece 6 are located between two limiting plates 61 of another spacing piece 6 promptly for the two can the synchronous motion. In this way, the longitudinal direction of the stopper plate 61 serves to restrict the rotation of the pawl 31, and the side surface of the stopper plate 61 serves to abut against the stopper 22. The spacing pieces 6 of the two locking parts can be sleeved so as to be convenient to install.
In this embodiment, the outer slide rail 2 and the inner slide rail 1 are connected to the inner slide rail 1 in a matching manner through the sliding member 7 provided with the steel ball, specifically, the locking assembly is installed when the inner slide rail 1 is connected to the outer slide rail 2, and the unlocking assembly may be installed on the inner slide rail 1 before the inner slide rail 1 is connected to the outer slide rail 2, or may be installed on the inner slide rail 1 after the inner slide rail 1 is connected to the outer slide rail 2.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (11)
1. The slide rail of the automobile seat is characterized by comprising two groups of slide rail assemblies (100) which are arranged in parallel, wherein each slide rail assembly (100) comprises an inner slide rail (1), an outer slide rail (2) and a locking part arranged between the inner slide rail (1) and the outer slide rail (2), each locking part comprises a locking mechanism (3) and an unlocking mechanism (4), and the inner slide rail (1) can slide relative to the outer slide rail (2);
the locking mechanism (3) comprises a locking claw (31) and a locking spring (32), the outer slide rail (2) is provided with strip-shaped teeth (21) along the length direction, the strip-shaped teeth (21) comprise tooth structures (211) which are arranged at intervals in a staggered mode and have different heights, the top of the locking claw (31) penetrates through the top wall of the inner slide rail (1), the bottom of the locking claw is bent and provided with a locking tooth (311) matched with the tooth structures (211), and the locking tooth (311) penetrates through the side wall of the inner slide rail (1) and can move towards the strip-shaped teeth (21) under the action of the locking spring (32) to be meshed with the tooth structures (211);
the unlocking mechanism (4) comprises an adjusting piece (41) and a return spring (42), the adjusting piece (41) can act on the top end of the locking claw (31) to enable the locking tooth (311) to move towards one side far away from the strip-shaped tooth (21) and be separated from the tooth structure (211), and the return spring (42) can act on the adjusting piece (41) and be separated from the locking claw (31).
2. The slide rail of the car seat according to claim 1, wherein the unlocking mechanism (4) further comprises a fixing plate (43) fixedly connected to the inner slide rail (1) and a rotating shaft (45) arranged on the fixing plate (43), the adjusting member (41) can rotate around the rotating shaft (45) relative to the fixing plate (43), one end of the adjusting member (41) is connected with the operating rod (200), the other end of the adjusting member can act on the top end of the locking claw (31), and the operating rod (200) can drive the adjusting member (41) to rotate around the rotating shaft (45) and drive the locking claw (31) to move to the side far away from the strip-shaped teeth (21).
3. The slide rail of car seat according to claim 2, characterized in that the top end of the fixed plate (43) is provided with a stop plate (431), and the stop plate (431) is used for limiting the rotation of the adjusting member (41).
4. The slide rail for a car seat according to claim 3, wherein the lower end surface of the baffle plate (431) is further provided with a cushion pad (44).
5. Slide for a car seat according to claim 2, characterised in that the locking portion also comprises a plastic head (5), the tip of the locking pawl (31) passing through the top wall of the inner slide (1) and being fixed by plugging with the plastic head (5), the adjustment element (41) being able to act on the plastic head (5) to disengage the locking tooth (311) from the tooth formation (211).
6. The sliding track of the car seat according to claim 5, wherein the plastic head (5) is further provided with a viewing hole (52) for viewing the position of the top end of the locking claw (31) inserted into the plastic head (5).
7. The slide rail of the car seat according to any one of claims 2 to 6, wherein the return spring (42) is a torsion spring sleeved outside the rotating shaft (45), and the torsion arms at two ends of the torsion spring are respectively fixed with the fixing plate (43) and the adjusting member (41).
8. The sliding track of the automobile seat according to any one of claims 1-6, wherein the side wall of the inner sliding track (1) is further provided with a strip-shaped mounting hole (11), and the inner wall of the locking claw (31) is further provided with a clamping piece (312);
the locking spring (32) is a clamp spring with bending sections at two ends, the two bending sections correspondingly penetrate through the two strip-shaped mounting holes (11), the middle portion of the clamp spring abuts against the clamping piece (312) and can push the clamping piece (312) to push the locking claw (31) to move towards one side far away from the strip-shaped teeth (21).
9. The slide rail for an automobile seat according to any one of claims 1 to 6, wherein the number of the locking portions is two, and the two locking portions are provided symmetrically with respect to an axis in a length direction of the inner slide rail (1).
10. The slide rail of an automobile seat according to any one of claims 1 to 6, wherein the locking portion further comprises a stopper piece (6) fixed to an inner wall of the inner slide rail (1), the stopper piece (6) being capable of abutting against the locking claw (31) to prevent the locking claw (31) from rotating.
11. The slide rail of the car seat according to claim 10, wherein the outer slide rail (2) is further provided with two limiting members (22) along the length direction, and a sliding space of the limiting piece (6) is formed between the two limiting members (22).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911054124.7A CN110626227B (en) | 2019-10-31 | 2019-10-31 | Slide rail of automobile seat |
| PCT/CN2020/099078 WO2021082490A1 (en) | 2019-10-31 | 2020-06-30 | Sliding rail of vehicle seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911054124.7A CN110626227B (en) | 2019-10-31 | 2019-10-31 | Slide rail of automobile seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110626227A true CN110626227A (en) | 2019-12-31 |
| CN110626227B CN110626227B (en) | 2024-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911054124.7A Active CN110626227B (en) | 2019-10-31 | 2019-10-31 | Slide rail of automobile seat |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110626227B (en) |
| WO (1) | WO2021082490A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021082490A1 (en) * | 2019-10-31 | 2021-05-06 | 湖北航嘉麦格纳座椅系统有限公司 | Sliding rail of vehicle seat |
| CN116084743A (en) * | 2023-04-11 | 2023-05-09 | 北京城建集团有限责任公司 | Light hyperbolic thin-shell steel structure supporting system and use method |
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Also Published As
| Publication number | Publication date |
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| WO2021082490A1 (en) | 2021-05-06 |
| CN110626227B (en) | 2024-05-07 |
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