CN212604679U - Automobile seat slide rail mechanism - Google Patents

Abstract

The utility model provides a car seat slide rail mechanism, it includes the lower slide rail, and with the lower slide rail match the setting and the gliding last slide rail of slide rail down relatively, be equipped with the locking subassembly with locking relative position between the two between lower slide rail and last slide rail, and be equipped with the unblock handle that can unblock locking subassembly on last slide rail, car seat slide rail mechanism is still including the fixed memory slide rail of locating down on the slide rail, slidable locates the lower memory subassembly in the memory slide rail, the fixed last memory subassembly of locating on the slide rail, and the external drive subassembly that links to each other with locking subassembly and driving piece transmission respectively. The utility model discloses a car seat slide rail mechanism can simplify the structure of external drive subassembly, can eliminate and the external drive subassembly between the fit clearance, can have the tolerance volume of great degree, can avoid the asynchronous problem of unblock, improves mechanism stability in use, also can reduce simultaneously to the occupation of slide rail outer space to be favorable to the holistic lightweight of mechanism.

Description

Automobile seat slide rail mechanism

Technical Field

The utility model relates to a car seat technical field, in particular to car seat slide rail mechanism with position memory function.

Background

At present, most of mainstream automobile seat slide rail mechanisms with memories in the market realize the functions of starting, position memory, sliding, resetting and the like through the matching of a locking module, a memory module, a driving structure, a handle and an upper slide rail and a lower slide rail. Although the automobile seat slide rail structure with the position memory function can realize the memory of the seat position, the automobile seat slide rail structure also has the defects of a plurality of aspects, for example, the existing slide rail structure with the position memory function has the defects of more complex structure, high cost, heavy weight, more matched parts, high requirements on manufacturing precision and matching precision, poor product stability, larger occupation of the space outside the rail and no contribution to popularization and application.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a seat slide mechanism for a vehicle, so as to enable a seat slide to have a position memory function and overcome at least some of the disadvantages of the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a car seat slide rail mechanism, including lower slide rail, and with lower slide rail matches the setting and can be relative the gliding last slide rail of lower slide rail, in lower slide rail with go up and be equipped with the locking subassembly in order to lock relative position between the two between the slide rail, and in it can unblock to go up to be equipped with on the slide rail the unblock handle of locking subassembly, car seat slide rail mechanism still includes:

the memory sliding rail is fixedly arranged in the lower sliding rail, and a plurality of memory gear units which are arranged at intervals along the sliding direction of the upper sliding rail are arranged on the memory sliding rail;

the lower memory component is arranged in the memory slide rail in a sliding manner, and is provided with a locking pin arranged in a sliding manner, a linkage piece arranged in linkage with the locking pin and a first elastic piece capable of driving the locking pin to slide;

the upper memory component is fixedly arranged in the upper sliding rail and is provided with an abutting part positioned at one end, and a driving part and a second elastic part which are positioned at the other end relative to the abutting part, so that the abutting part can be abutted against one side of the lower memory component because the upper memory component slides along the upper sliding rail, and the driving part can form the external force applied to the linkage part under the driving of the second elastic part;

the external driving assembly is respectively in transmission connection with the locking assembly and the driving piece, and the external driving assembly is set to synchronously drive the locking assembly and the driving piece so as to unlock the locking assembly and remove the external force exerted on the linkage piece by the driving piece.

Further, in lower slide rail with it is equipped with a plurality of locking holes to correspond on the last slide rail, the locking hole is followed the slip direction interval of going up the slide rail is arranged, just the locking subassembly is including locating locking piece on the last slide rail, and with the third elastic component that the locking piece linkage set up, the locking piece have with the unblock handle reaches the unblock end that the transmission of external drive subassembly links to each other, and in go up the slide rail with its a pair of on the lower slide rail locking hole is right time, because of what the third elastic component ordered about and can pass locate this pair the downthehole locking end of locking.

Furthermore, the locking piece is rotatably arranged on the upper sliding rail, and the locking end is a plurality of pawls formed on the locking piece.

Furthermore, an installation support is fixedly embedded on the upper sliding rail, the locking piece is rotatably arranged on the installation support, and the third elastic piece is a torsion spring arranged between the locking piece and the installation support.

Furthermore, the memory gear unit is a gear hole arranged on the memory slide rail, and one end of the locking pin can be arranged in the gear hole in a penetrating manner so as to form locking matching; the lower memory assembly is provided with a lower memory support, the lower memory support is arranged in the memory sliding rail in a sliding mode, the locking pin is arranged on the lower memory support in a sliding mode, the linkage piece is arranged on the lower memory support in a lever-shaped rotating mode, and one end of the linkage piece is in transmission connection with the locking pin.

Furthermore, the first elastic piece is a pressure spring sleeved on the locking pin, and two ends of the first elastic piece are respectively abutted against the locking pin and the lower memory support.

Furthermore, the upper memory assembly is provided with an upper memory support, the abutting part is integrally constructed on an abutting protrusion extending out of one end of the upper memory support, the driving part is rotatably arranged on the upper memory support, the second elastic part is arranged between the driving part and the upper memory support, an abutting protrusion capable of abutting against the linkage part to apply the external force is constructed at one end of the driving part, and a connecting part connected with the external driving assembly is arranged at the other end of the driving part relative to the abutting protrusion.

Furthermore, the second elastic piece is arranged on the upper memory support and a torsion spring between the driving pieces, and the connecting portion is arranged on the connecting hole of the driving pieces.

Furthermore, the external driving assembly is provided with an external driving support fixedly arranged on the upper sliding rail, and is provided with an end guide frame arranged on the first wire harness cable and the second wire harness cable arranged on the external driving support, one end of the first wire harness cable is connected with the locking assembly, and one end of the second wire harness cable is connected with the driving piece.

Furthermore, the other ends of the first wire harness cable and the second wire harness cable are in transmission connection with a backrest of an automobile seat, so that the first wire harness cable and the second wire harness cable can be synchronously pulled by overturning the backrest.

Compared with the prior art, the utility model discloses following advantage has:

the utility model discloses a car seat slide rail mechanism can synchronous drive locking subassembly and driving piece through the external drive subassembly, can simplify the structure of external drive subassembly, through the setting of first elastic component and second elastic component, can eliminate and the external drive subassembly between the fit clearance, can have the tolerance volume of great degree, and can avoid the asynchronous problem of unblock, improvement mechanism stability in use. In addition, the lower memory component is positioned in the memory sliding rail, and the corresponding upper memory component is positioned in the upper sliding rail, so that the occupation of the outer space of the sliding rail can be reduced, and a locking pin structure is adopted, so that the memory locking structure is simple and reliable, and the whole light weight of the mechanism is facilitated.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a slide rail mechanism according to an embodiment of the present invention;

fig. 2 is a structural diagram of a slide rail mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a lower slide rail according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an upper slide rail according to an embodiment of the present invention;

FIG. 5 is a partial enlarged view of portion A of FIG. 4;

fig. 6 is a schematic structural view of a memory slide rail according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a lower memory module according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an upper memory assembly according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an external driving assembly according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a handle connector according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a connecting member for a support rod according to an embodiment of the present invention;

fig. 12 is a schematic view of a partial structure of a slide rail mechanism according to an embodiment of the present invention;

fig. 13 is a partial enlarged view of portion B of fig. 12;

description of reference numerals:

1-lower slide rail, 2-upper slide rail, 3-unlocking handle, 4-support bar, 5-support bar connecting piece, 6-mounting bracket, 7-locking piece, 8-memory slide rail, 9-external driving bracket, 10-upper memory bracket, 11-driving piece, 12-lower memory bracket, 13-linkage piece, 14-first wiring harness cable, 15-second wiring harness cable, 16-second elastic piece, 17-locking pin;

301-handle connecting piece, 302-unlocking end connecting hole, 303-inhaul cable connecting hole, 501-fixed support, 502-mounting hole, 601-locking piece rotating shaft, 701-unlocking end, 702-locking end, 801-gear hole, 802-rivet, 901-through hole, 902-first support arm, 903-second support arm, 1001-riveting bulge, 1002-abutting bulge, 1003-driving piece rotating shaft, 1101-connecting hole, 1102-abutting bulge, 1201-flange and 1301-linkage piece rotating shaft.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that the terms "upper", "lower", "left", "right", "inner", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present embodiment, and do not indicate or imply that the referred devices or elements must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present embodiment. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment relates to a car seat slide rail mechanism, generally be provided with three rows of seats in the car of using this slide rail mechanism, just slide rail mechanism specifically is used for well row seat department, can be convenient for the removal of well row seat on the one hand from this, realizes the easy entering of back row seat, and on the other hand also can realize the position memory function of well row seat when removing to the trouble of well row seat position adjustment is saved.

Of course, besides the above-mentioned middle row seats used in the car with three rows of seats, the slide rail mechanism of the embodiment can also be used in other rows of seats or the car with other number of rows of seats (such as two rows or one row) according to the actual layout and specific functional design requirements of the seats in the car. The structure of the track mechanism and its particular use, when used in other seating arrangements, can then be seen in the following description herein.

As shown in fig. 1 and 2, only one side of the upper and lower slide rails is shown in fig. 2, and the slide rail mechanism of the automobile seat of the present embodiment specifically includes a lower slide rail 1 and an upper slide rail 2 that is disposed in a matching manner with the lower slide rail 1 and can slide relative to the lower slide rail 1, a locking assembly that locks the relative position between the lower slide rail 1 and the upper slide rail 2 is disposed between the lower slide rail 1 and the upper slide rail 2, an unlocking handle 3 that can unlock the locking assembly is also disposed on the upper slide rail 2, and a support rod 4 for supporting the unlocking handle 3 is also generally disposed below the unlocking handle.

In addition, the car seat slide rail mechanism of this embodiment further includes a memory slide rail 8 fixedly disposed on the lower slide rail 1, a lower memory component slidably disposed in the memory slide rail 8, an upper memory component fixedly disposed on the upper slide rail 2, and an external driving component respectively connected to the locking component and the upper memory component in a transmission manner.

Specifically, the structures of the lower sliding rail 1 and the upper sliding rail 2 are as shown in fig. 3 to fig. 5, the lower sliding rail 1 is generally fixed on the floor of the automobile, and the sliding fit structure between the lower sliding rail 1 and the upper sliding rail 2 in this embodiment can be directly referred to the related structures widely applied in the existing automobile seats, and will not be described again here.

This embodiment corresponds on lower slide rail 1 and last slide rail 2 and is provided with a plurality of locking holes, and each locking hole on lower slide rail 1 and the last slide rail 2 all arranges along the slip direction interval of last slide rail 2, and aforementioned locking subassembly is then including setting up locking piece 7 on last slide rail 2 to and the third elastic component that is not shown in the figure that sets up with this locking piece 7 linkage. The locking member 7 has an unlocking end 701 capable of being in transmission connection with the unlocking handle 3 and the external driving component, and a locking end 702 capable of being penetrated in a pair of locking holes due to the driving of the third elastic member when the pair of locking holes on the upper slide rail 2 and the lower slide rail 1 are aligned.

It should be noted that, the distance between the adjacent locking holes on the lower slide rail 1 and the upper slide rail 2 should be the same, and as a specific implementation form, the number of the locking holes on the upper slide rail 2 and the lower slide rail 1 in this embodiment may be unequal, and the number of the locking holes on the lower slide rail 1 is greater than that of the upper slide rail 2. At this time, the locking member 7 of the present embodiment is also specifically disposed on the upper sliding rail 2 in a rotating manner, and the locking ends 702 are a plurality of pawls formed on the locking member 7. The plurality of pawls correspond to the locking holes on the upper slide rail 2 one by one, and can be inserted into the corresponding locking holes on the upper slide rail 2 along with the rotation of the locking piece 7.

Therefore, along with the sliding of the upper slide rail 2, when the locking holes on the upper slide rail 2 are aligned with the locking holes at different positions on the lower slide rail 1, the locking ends 702 on the locking pieces 7 are enabled to penetrate through the aligned locking holes together by the rotation of the locking pieces 7, so that the locking of the relative positions between the lower slide rail 1 and the upper slide rail 2 can be realized. When the locking member 7 is rotated in the reverse direction so that the locking end 702 is drawn out from the aligned locking hole, the above locking of the relative positions of the two can be released.

The locking holes on the upper sliding rail 2 are arranged in a plurality of ways, the locking end 702 of the locking piece 7 is provided with a plurality of pawls, and the reliability of locking the relative position between the upper sliding rail and the lower sliding rail can be well guaranteed. However, since there are a plurality of locking holes on the upper slide rail 2, in order to avoid the problem of being unable to lock, when the upper slide rail 2 slides to adjust the position, it is necessary to constantly satisfy that each locking hole on the upper slide rail 2 can be aligned with the corresponding locking hole on the lower slide rail 1. At this time, the sliding stroke of the upper sliding rail 2 can be limited generally, so that the locking holes on the upper and lower sliding rails can be aligned at two sliding limit positions of the upper sliding rail 2.

Of course, besides designing the plurality of locking holes on the upper slide rail 2, in this embodiment, only one or a small number (e.g., two) of locking holes may be provided on the upper slide rail 2, and at this time, the locking end 702 of the locking member 7 may also be adjusted accordingly. The arrangement of the upper slide rail 2 with a smaller number of locking holes generally enables the upper slide rail 2 to obtain a larger sliding adjustment stroke, but may result in a reduction in locking reliability between the upper and lower slide rails compared to the above-described arrangement of the plurality of locking holes.

In the present embodiment, the locking member 7 can be directly disposed on the upper slide rail 2, but as a preferred embodiment, the present embodiment specifically includes that the mounting bracket 6 is embedded and fixed on the upper slide rail 2, and the locking member 7 is rotatably disposed on the mounting bracket 6 through the locking member rotating shaft 601. Meanwhile, the third elastic member may also be a torsion spring disposed between the locking member 7 and the mounting bracket 6, and the arrangement of the torsion spring between the locking member 7 and the mounting bracket 6 may be implemented by a conventional torsion spring arrangement.

This embodiment will be described later with respect to the transmission connection between the locking member 7 and the release handle 3 and the external drive assembly. Fig. 6 shows the structure of the memory slide rail 8 of the present embodiment, which is specifically fixed in the lower slide rail 1 by rivets 802 at both ends, and a plurality of memory shift units arranged at intervals along the sliding direction of the upper slide rail 2 are also provided on the memory slide rail 8. The memory gear unit of the present embodiment is specifically the gear hole 801 formed on the memory slide rail 8, and one end of the locking pin 17 in the lower memory assembly described below can be inserted into the gear hole 801, so as to form a locking engagement therebetween, thereby realizing the locking of the lower memory assembly at the position of the gear hole 801.

The structure of the lower memory assembly is specifically shown in fig. 7, and the lower memory assembly of the present embodiment has a lower memory support 12, a locking pin 17 slidably disposed on the lower memory support 12, a first elastic member capable of driving the locking pin 17 to slide, and a linkage member 13 rotatably disposed on the lower memory support 12 in a lever shape, and the linkage member 13 and the locking pin 17 are linked.

Wherein, two sides of the bottom of the lower memory support 12 are formed with convex flanges 1201, and the lower memory support 12 is slidably arranged in the memory slide rail 8 through the flanges 1201 at the two sides. The link 13 is rotatably disposed on the lower memory support 12 through a link rotating shaft 1301, one end of the link 13 is in transmission connection with the locking pin 17 to realize the linkage therebetween, and the other end of the link 13 is a free end extending out of the lower memory support 12 and also used for receiving the pressing drive of the drive plate 11 in the upper memory assembly described below.

In this embodiment, in the design of the lower memory component, the first elastic member inside the lower memory component is driven to lock the locking pin 17 and one of the memory gear units, namely, the gear hole 801, so as to lock the lower memory component at the position of the gear hole 801. When the link 13 receives an external force applied by the driving plate 11, the lock pin 17 can be driven to slide, so as to overcome the driving force of the first elastic member, and release the locking of the lower memory component.

In this case, as an exemplary embodiment, the first elastic member may be, for example, a compression spring sleeved on the locking pin 17, the compression spring is disposed inside the lower memory support 12, and both ends of the compression spring abut against the locking pin 17 and an inner wall of the lower memory support 12, respectively. In this way, with the orientation shown in fig. 7 as a reference, the locking pin 17 can be driven to slide downward under the elastic force of the compression spring, so that the bottom end of the locking pin 17 extends into the shift position hole 801, and the position locking function is achieved.

When the free end of the lever-shaped linkage member 13 is pressed by the driving member 11 in the upper memory assembly to drive an external force, the other end of the linkage member 13, which is in transmission connection with the locking pin 17, can drive the locking pin 17 to slide upwards. This makes it possible to disengage the bottom end of the lock pin 17 from the shift position hole 801, i.e., to release the position lock, against the urging force of the compression spring, i.e., the first elastic member.

Of course, as another feasible implementation manner, for example, the first elastic member may be a torsion spring disposed at the linkage member 13, and at this time, the elastic driving force of the first elastic member is transmitted to the locking pin 17 through the linkage between the linkage member 13 and the locking pin 17, and when the linkage member 13 does not receive the pressing external force of the driving member 11 in the memory assembly, the first elastic member adopting the torsion spring structure may also extend the bottom end of the locking pin 17, so as to achieve the locking engagement with the one blocking hole 801 on the memory slide rail 8.

The upper memory component of this embodiment is structured as shown in fig. 8, and has an upper memory support 10, an abutting portion at one end, and a driving member 11 and a second elastic member 16 at the other end with respect to the abutting portion. The second elastic element 16 has an elastic force greater than the first elastic element, and the abutting portion can be abutted against one side of the lower memory component due to the sliding of the upper slide rail 2, and the driving element 11 can be driven by the second elastic element 16 to form the external force applied to the linkage element 13.

In a preferred embodiment, the upper abutting portion is an outwardly extending abutting protrusion 1002 integrally formed at one end of the upper memory support 10, and the abutting protrusion 1002 can abut against one side of the lower memory support 12 in the lower memory assembly along with the sliding of the upper slide rail 2. The driving member 11 of the present embodiment is specifically rotatably disposed on the upper memory support 10 through the driving member rotating shaft 1003, the second elastic member 16 is disposed between the driving member 11 and the upper memory support 10, and the second elastic member 16 specifically adopts a torsion spring disposed between the upper memory support 10 and the driving member 11.

In order to facilitate the pressing of the free end of the link 13 in the lower memory component, a pressing protrusion 1102 for pressing the link 13 to apply the external force is also configured at one end of the driving component 11, and meanwhile, for facilitating the connection with the external driving component, a connecting portion connected with the external driving component is disposed at the other end of the driving component 11 opposite to the pressing protrusion 1102. The connecting portion may be a connecting hole 1101 provided in the driving member 11.

Of course, instead of having the second elastic member 16 adopt the torsion spring structure shown in the drawings, it is of course possible to adopt, for example, a plate spring. It is also possible to arrange the driving member 11 to be slidably mounted on the upper memory support 10, and correspondingly to arrange the second elastic member 16 to be a compression spring structure sleeved on the driving member 11 in a sliding arrangement, instead of arranging the driving member 11 to be rotatable.

In this embodiment, unlike the slidable arrangement of the lower memory component in the memory slide rail 8, the upper memory component is fixed on the upper slide rail 2, and in order to fix the upper memory component, the riveting protrusion 1001 is also configured on the top of the upper memory support 10. The riveting projection 1001 is a boss structure integrally formed on the upper memory bracket 10, and fig. 8 shows a shape in which the riveting projection 1001 becomes a rivet head. When assembling, the riveting protrusion 1001 penetrates through the through hole on the upper slide rail 2, and then becomes a riveting head through the riveting tool, so that the upper memory support 10, that is, the upper memory component is integrally fixed on the upper slide rail 2.

It should be noted that, in order to ensure the reliable fixing of the upper memory component, the riveting protrusion 1001 may be two spaced apart, and in the present embodiment, in order to simplify the structure, the fixing of the upper memory component is performed, and at the same time, the fixing of the external driving bracket 9 in the external driving component described below is also performed by the riveting protrusion 1001. At this time, only the through holes 901 corresponding to the through holes on the upper slide rail 2 one by one need to be formed in the external driving bracket 9, and the riveting protrusion 1001 is allowed to collectively penetrate through the through holes and the through holes 901 during assembly and fixation, and then riveting is performed.

The external driving assembly of this embodiment is configured to synchronously drive the locking assembly and the driving member 11, so as to unlock the locking assembly and release the pressing external force applied to the linkage member 13 by the driving member 11. And, as shown in fig. 9, an exemplary structure of the external drive assembly has the above-mentioned external drive bracket 9 fixedly installed on the upper slide rail 2, and the first wire harness cable 14 and the second wire harness cable 15 both having one end guided to be installed on the external drive bracket 9.

The first harness cable 14 is guided and supported by a first arm 902 formed on the external drive bracket 9, and one end thereof is connected to the locking member, and the second harness cable 15 is guided and supported by a second arm 903, and one end thereof is connected to the driving member 11. In addition, in the present embodiment, corresponding to the arrangement of the slide rail mechanism at the middle row seat, the other ends of the first harness cable 14 and the second harness cable 15 are both connected to the backrest of the middle row vehicle seat in a transmission manner, so that the backrest of the middle row seat can be turned over, and the first harness cable 14 and the second harness cable 15 can be pulled synchronously.

In this embodiment, the second harness cable 15 is connected to the driver 11 in the connection hole 1101, and the connection between the first harness cable 14 and the locking assembly is established. Referring to fig. 10, a handle link 301 is fixedly mounted on an end portion of the release handle 3, and the handle link 301 is configured with a release end connection hole 302 and a cable connection hole 303, wherein the release end 701 of the locking member 7 is inserted through the release end connection hole 302, and the first harness cable 14 is connected to the cable connection hole 303, so as to realize transmission connection between the locking member and the release handle 3 and the external driving member, respectively.

The aforementioned support rod 4 of this embodiment is specifically fixed on the upper slide rail 2 through the support rod connecting piece 5, and as shown in fig. 11, the support rod connecting piece 5 includes a fixing bracket 501 for being fixedly connected with the upper slide rail 2, and is provided with a mounting hole 502 on the fixing bracket 501, and the support rod 4 is fixed in the mounting hole 502 in a penetrating manner.

Fig. 12 and 13 are schematic views of the locking assembly, the memory slide rail 8, the upper memory assembly, the lower memory assembly and the external driving assembly of the present embodiment after being assembled on the upper and lower slide rails, in which the memory slide rail 8 and the lower memory assembly are not visible inside. As shown in fig. 1, in the integrated slide rail mechanism for the vehicle seat, the memory slide rail 8, the upper memory component, the lower memory component and the external driving component are generally disposed only between the upper and lower slide rails on one side, and only the same locking component is disposed between the upper and lower slide rails on the other side.

In use, in a general state, under the action of the third elastic element, the locking end 702 of the locking element 7 is inserted into the locking hole aligned with the upper and lower slide rails, the upper and lower slide rails are locked, and the seat is not movable.

When the backrest needs to be turned over and the seat position needs to be adjusted forwards and backwards, the unlocking handle 3 can be pulled upwards, the unlocking handle 3 drives the locking piece 7 to rotate, the locking end 702 is separated from the aligned locking hole, and the locking assembly can be unlocked. At the same time, the driving member 11 presses the link member 13 under the action of the second elastic member 16, so that the locking pin 17 cannot be inserted into the shift position hole 801. In this way, the lower memory component is not locked in the memory slide rail 8, and can slide with the upper slide rail 2, so that the upper slide rail 2, i.e. the car seat, can be moved forward and backward to adjust the position thereof.

After the seat position is moved and adjusted in place, the unlocking handle 3 is loosened, the locking piece 7 is reset, so that the locking end 702 is arranged in the newly aligned locking hole again in a penetrating manner, and the seat can be locked.

When the middle-row seat backrest needs to be turned over and the middle-row seat is moved to enter a rear-row seat in an automobile, the turned backrest pulls the first wire harness cable 14 and the second wire harness cable 15, and the two wire harness cables 15 synchronously drive the locking piece 7 and the driving piece 11. At this time, the locking member 7 rotates to unlock the locking assembly, and the driving member 11 is driven to release the pressing external force on the link member 13, so that the bottom end of the locking pin 17 can extend into the gear hole 801 under the action of the first elastic member, thereby locking the lower memory assembly in the memory slide rail 8.

Through the unblock of locking subassembly, just can the antedisplacement well row seat to make way the space and do benefit to personnel and get into back row seat position, after personnel get into back row seat, will well row seat backward the removal reset. At this time, since the bottom end of the locking pin 17 is inserted into the shift hole 801, the position thereof is locked, and when the middle row seat moves backward to the abutment protrusion 1002 of the upper memory assembly to abut against the lower memory bracket 12, the middle row seat moves backward to a position which is the initial position when the middle row seat moves forward. Therefore, the embodiment can realize the memory of the position of the middle row seat before moving, and the middle row seat can return to the position before moving when moving and resetting.

After the middle-row seat returns to the previous position again, the backrest is turned over again to reset, at the moment, the first harness cord 14 and the second harness cord 15 reset, and under the reset action of the elastic pieces, the locking assembly enters the locking state again, the driving piece 11 presses the linkage piece 13 again, so that the locking pin 17 is separated from the locking fit with the gear hole 801, and the whole middle-row seat can return to the previous use state again.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a car seat slide rail mechanism, including lower slide rail (1), and with slide rail (1) matches the setting down and can be relative slide rail (1) gliding last slide rail (2) down, in slide rail (1) down with go up and be equipped with the locking subassembly in order to lock relative position between the two between slide rail (2), and in it can unblock to be equipped with on slide rail (2) unblock handle (3) of locking subassembly, its characterized in that: the car seat slide rail mechanism still includes:

the memory sliding rail (8) is fixedly arranged in the lower sliding rail (1), and a plurality of memory gear units which are arranged at intervals along the sliding direction of the upper sliding rail (2) are arranged on the memory sliding rail (8);

the lower memory component is arranged in the memory sliding rail (8) in a sliding manner, and is provided with a locking pin (17) which is arranged in a sliding manner, a linkage piece (13) which is arranged in a linkage manner with the locking pin (17), and a first elastic piece which can drive the locking pin (17) to slide, so that the locking pin (17) can be in locking fit with one memory gear unit under the driving of the first elastic piece so as to lock the lower memory component at the position of the memory gear unit, and the linkage piece (13) can drive the locking pin (17) to slide under the action of external force so as to release the locking of the lower memory component;

the upper memory component is fixedly arranged in the upper sliding rail (2), the upper memory component is provided with a butting part positioned at one end, and a driving part (11) and a second elastic part (16) which are positioned at the other end relative to the butting part, the butting part can be butted against one side of the lower memory component because the upper memory component slides along with the upper sliding rail (2), and the driving part (11) can form the external force applied to the linkage part (13) under the driving of the second elastic part (16);

the external driving assembly is in transmission connection with the locking assembly and the driving piece (11) respectively, and the external driving assembly is set to synchronously drive the locking assembly and the driving piece (11) so as to unlock the locking assembly and release the external force applied to the linkage piece (13) by the driving piece (11).

2. The automotive seat track mechanism according to claim 1, characterized in that: the lower sliding rail (1) and the upper sliding rail (2) are correspondingly provided with a plurality of locking holes, the locking holes are arranged at intervals along the sliding direction of the upper sliding rail (2), the locking assembly comprises a locking piece (7) arranged on the upper sliding rail (2) and a third elastic piece arranged in a linkage mode with the locking piece (7), the locking piece (7) is provided with an unlocking end (701) connected with an unlocking handle (3) and an external driving assembly in a transmission mode, one of the upper sliding rail (2) and the lower sliding rail (1) is right when the locking holes are aligned, and the third elastic piece can be driven to penetrate and arranged in the locking end (702) in the locking holes.

3. The automobile seat slide rail mechanism according to claim 2, wherein: the locking piece (7) is rotatably arranged on the upper sliding rail (2), and the locking end (702) is a plurality of pawls formed on the locking piece (7).

4. The automobile seat slide rail mechanism according to claim 3, wherein: the upper sliding rail (2) is embedded with mounting brackets (6), the locking piece (7) is rotatably arranged on the mounting brackets (6), and the third elastic piece is a torsion spring arranged between the locking piece (7) and the mounting brackets (6).

5. The automotive seat track mechanism according to claim 1, characterized in that: the memory gear unit is a gear hole (801) formed in the memory slide rail (8), and one end of the locking pin (17) can penetrate through the gear hole (801) to form locking matching; the lower memory component is provided with a lower memory support (12), the lower memory support (12) is arranged in the memory sliding rail (8) in a sliding mode, the locking pin (17) is arranged on the lower memory support (12) in a sliding mode, the linkage piece (13) is arranged on the lower memory support (12) in a lever-shaped rotating mode, and one end of the linkage piece (13) is in transmission connection with the locking pin (17).

6. The automotive seat track mechanism according to claim 5, characterized in that: the first elastic piece is a pressure spring sleeved on the locking pin (17), and two ends of the first elastic piece are respectively abutted against the locking pin (17) and the lower memory support (12).

7. The automotive seat track mechanism according to claim 1, characterized in that: the upper memory component is provided with an upper memory support (10), the abutting part is integrally constructed on an abutting protrusion (1002) which extends outwards and is arranged at one end of the upper memory support (10), the driving part (11) is rotatably arranged on the upper memory support (10), the second elastic part (16) is arranged between the driving part (11) and the upper memory support (10), one end of the driving part (11) is constructed with a pressing protrusion (1102) which can press the linkage part (13) to apply the external force, and relative to the pressing protrusion (1102), the other end of the driving part (11) is provided with a connecting part connected with the external driving component.

8. The automotive seat track mechanism according to claim 7, characterized in that: the second elastic piece (16) is a torsion spring arranged between the upper memory support (10) and the driving piece (11), and the connecting part is a connecting hole (1101) arranged on the driving piece (11).

9. The automobile seat slide rail mechanism according to any one of claims 1 to 8, wherein: the external driving assembly is provided with an external driving support (9) fixedly arranged on the upper sliding rail (2) and is provided with a first wire harness cable (14) and a second wire harness cable (15) which are arranged on the external driving support (9) in a guiding mode, one end of the first wire harness cable (14) is connected with the locking assembly, and one end of the second wire harness cable (15) is connected with the driving piece (11).

10. The automotive seat track mechanism according to claim 9, characterized in that: the other ends of the first wire harness cable (14) and the second wire harness cable (15) are in transmission connection with a backrest of an automobile seat, and the first wire harness cable (14) and the second wire harness cable (15) are synchronously pulled by overturning the backrest.

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