CN110626222A - Electric slide rails for car seats - Google Patents

Abstract

The invention discloses an electric slide rail for a car seat, which includes a slide rail and a cable. In the drag chain, the drag chain is placed in the rail cavity of the outer rail, and the outer rail has a support part that slides and supports the drag chain; one end of the drag chain is connected to the outer rail, and the other end is connected to the outer rail. The inner rail connection described above. The electric slide rail improves the structure of the outer rail so that it also has a space for accommodating cables on the basis of cooperating with the inner rail, avoiding the separate cavity structure for accommodating cables, and has a simple structure and a small footprint.

Description

Electric slide rails for car seats

technical field

The invention relates to the technical field of seat slide rails, in particular to an electric slide rail for a car seat.

Background technique

The car seat slides the seat relative to the car body through the slide rails. Most of the seat slide rails are manual, that is, the front and rear sliding of the seat is realized by the person's own force. For long slide rails (such as greater than 350mm ), if manual sliding is still used, the operability and comfort are not good, so the electric slide rail came into being.

The existing electric slide rails include inner rails and outer rails, the outer rails are connected to the car base or body, the inner rails are connected to the seats, and the electric slide rails also include a drive system, a locking system and a controller, and the drive system is used to control the inner rail. The rail slides relative to the outer rail, the locking system is used to control the locking or unlocking of the inner rail and the outer rail, and the controller is used to communicate and control the driving parts of the driving system and the driving parts of the locking system. Therefore, the electric slide rail also includes cable to realize the communication connection between the vehicle master control and the controller of the electric slide rail. Route the cables. In this way, the structure of the electric slide rail is complex, occupying a large space and costing a lot.

In view of this, it is urgent to optimize the design of the existing electric slide rails, so as to simplify the structure of the electric slide rails on the basis of protecting cables.

Contents of the invention

The object of the present invention is to provide an electric slide rail for a car seat. The electric slide rail has a space for accommodating cables on the basis of cooperating with the inner rail by improving the structure of the outer rail, avoiding the need for a separate accommodating The cavity structure of the cable is simple in structure and takes up little space.

In order to solve the above technical problems, the present invention provides an electric slide rail for a car seat, including a slide rail and a cable, the slide rail includes matching inner rails and outer rails, and a drag chain, and the cable Penetrating in the towline, the towline is placed in the rail cavity of the outer rail, the outer rail has a support part that slides to support the towline; one end of the towline is connected to the outer rail , and the other end is connected to the inner rail.

The electric slide rail of the car seat forms a space to accommodate the drag chain in the outer rail cavity of the slide rail, and the cable passes through the drag chain, wherein one end of the drag chain is connected to the outer rail, and the other end is connected to the inner rail. The connection is arranged in this way, and the cavity for separately accommodating the drag chain and the cable can be eliminated, the structure of the electric slide rail is simplified, the occupied space is small, and the cost is low.

According to the electric slide rail as described above, the outer rail includes a bottom wall, a first side wall, a second side wall and a top wall, and the top wall includes a first top wall part and a second top wall part, between which An opening extending along the length direction of the outer rail is formed, the first top wall part is connected to the bottom wall through the first side wall, and the second top wall part is connected to the bottom wall through the second side wall The bottom wall is connected; the support portion is formed on the bottom wall.

According to the electric slide rail as described above, the middle part of the bottom wall has a downwardly recessed recess, and the bottom wall includes a first bottom wall segment located on one side of the recess and a first bottom wall segment located on the other side of the recess. The second bottom wall segment, the support portion is specifically formed on the first bottom wall segment and the second bottom wall segment; the drag chain includes a first drag chain segment, a second drag chain segment and connecting the first drag chain segment A drag chain segment and a transition drag chain segment of the second drag chain segment, the first bottom wall segment and the second bottom wall segment are respectively used to support the first drag chain segment and the second drag chain segment chain segment.

According to the above electric slide rail, the first towline segment is detachably connected to the first side wall connected to the first bottom wall segment.

According to the above-mentioned electric slide rail, the first side wall has a bayonet socket, and the first drag chain segment is provided with an elastic buckle that is snapped into the bayonet socket.

According to the electric slide rail mentioned above, the end of the second drag chain section is provided with a connecting sleeve, and the second drag chain section is detachably connected to the inner rail through the connecting sleeve.

As for the above-mentioned electric slide rail, one of the connecting sleeve and the inner rail is provided with a convex portion, and the other is provided with a concave portion that fits with the convex portion, and the convex portion and the concave portion interference fit.

As for the above-mentioned electric slide rail, one side wall of the inner rail has an extension plate extending toward the drag chain, a groove is formed on the side of the connecting sleeve corresponding to the extension plate, and the extension plate The convex portion is formed, and the groove portion forms the concave portion.

As for the above-mentioned electric slide rail, the extension plate is provided with a through hole, and the groove wall corresponding to the extension plate is provided with an elastic clip, and the extension plate is inserted into the groove. , the elastic clamping plate is locked against the through hole, so as to prevent the connection sleeve from detaching from the extension plate.

As for the above-mentioned electric slide rail, there are two slide rails, and two drag chains are provided correspondingly to the two slide rails, and the cables are threaded in each drag chain .

Description of drawings

Fig. 1 is the schematic diagram of the assembly relation of electric slide rail in the specific embodiment;

Fig. 2 is the schematic diagram of the assembly relation of outer rail, inner rail and drag chain shown in Fig. 1;

Fig. 3 is the explosion diagram of Fig. 2;

Fig. 4 is the schematic diagram of the structure of the drag chain inside the outer rail cavity in the specific embodiment;

Fig. 5 is the partially enlarged view of drag chain and outer rail connection part in the specific embodiment;

Fig. 6 is a schematic diagram of the assembly relationship between the inner rail and the drag chain in the specific embodiment;

Fig. 7 is a schematic structural view of the inner rail in Fig. 6;

Fig. 8 is a partially enlarged view of part A in Fig. 6 .

Explanation of reference signs:

slide rail 10;

Inner rail 11, extension plate 111, through hole 1111;

Outer rail 12, bottom wall 121, first bottom wall section 1211, second bottom wall section 1212, groove bottom wall 1213, first side wall 122a, bayonet 1221a, second side wall 122b, top wall 123, first top wall portion 1231, second top wall portion 1232;

The first beam 13, the second beam 14;

Drive system 20, first drive motor 21, unlocking system 30, second drive motor 31, controller 40;

Drag chain 50, first drag chain segment 51 (outer rail), elastic buckle 511, second drag chain segment 52 (inner rail), transition drag chain segment 53, connecting sleeve 54, groove part 541, elastic clip 5411 .

Detailed ways

In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to FIG. 1 , which is a schematic diagram of the assembly relationship of the electric slide rail in a specific embodiment.

In this embodiment, the electric slide rail of the car seat includes slide rails 10, each slide rail 10 has a matching inner rail 11 and an outer rail 12, and a first beam 13 is fixedly connected between the two inner rails 11, And the second crossbeam 14, in order to improve the balance of the overall structure and simplify the structure, the first crossbeam 13 and the second crossbeam 14 are preferably perpendicular to the length direction of the slide rail 10, that is, the first crossbeam 13 and the second crossbeam 14 are opposite parallel. Here, the inner rail 11 and the outer rail 12 are defined on the basis of the structural wrapping relationship of the two relative displacement bodies of the slide rail 10. From the perspective of assembly relationship, when applied to a vehicle seat, the inner rail 11 is used to integrate with the seat. The main body (not shown in the figure) is connected, and the outer rail 12 is used for connecting with the vehicle body or base (not shown in the figure).

The electric slide rail also includes a driving system 20 and an unlocking system 30. The main components of the driving system 20 and the unlocking system 30 are installed on the first beam 13; The driving force for sliding the rail 12, the second drive motor 31 of the unlocking system 30 provides the driving force for unlocking the locking slide rail 10, so that the inner rail 11 and the outer rail 12 are in the locked position after the inner rail 11 drives the seat to slide to the designated position. lock state, and release the locked state of the inner rail 11 and the outer rail 12 when the inner rail 11 needs to slide.

In this embodiment, the actions of the first drive motor 21 and the second drive motor 31 are controlled by the controller 40 installed on the fourth crossbeam 14. In practical applications, the controller 40 can be connected with the master control of the car. Obviously, A cable needs to be connected between the controller 40 and the vehicle body.

Please refer to Figure 2 to Figure 8 together, Figure 2 is a schematic diagram of the assembly relationship of the outer rail, inner rail and towline shown in Figure 1; Figure 3 is an exploded schematic diagram of Figure 2; Schematic diagram of the internal structure of the rail cavity; Figure 5 is a partial enlarged view of the connection between the drag chain and the outer rail in the specific embodiment; Figure 6 is a schematic diagram of the assembly relationship between the inner rail and the drag chain in the specific embodiment; Schematic diagram of the structure of the inner rail; Figure 8 is a partial enlarged view of part A in Figure 6.

In this embodiment, the electric slide rail also includes a drag chain 50, and the drag chain 50 is used to provide traction and protection for the cables; The other end can be connected with the controller 40.

Wherein, the drag chain 50 is placed in the rail cavity of the outer rail 12, and the outer rail 12 has a support portion for slidingly supporting the drag chain 50. One end of the drag chain 50 is connected with the outer rail 12, and the other end is connected with the inner rail 11, that is to say, The drag chain 50 can slide back and forth along the inner rail 11 , so that the cables connected to the controller 40 can slide back and forth along the inner rail 11 .

After the above design, the cable components composed of the drag chain 50 and the cables passing therebetween are accommodated in the rail cavity of the outer rail 12, that is to say, the outer rail 12 provides accommodating space for the cable components, and the separate accommodation can be cancelled. The cavity of the drag chain 50 and the cable simplifies the structure of the electric slide rail, making the structure of the electric slide rail more compact, occupying less space, and lowering the cost.

As shown in Figure 2, the outer rail 12 provided by this embodiment includes a bottom wall 121, a first side wall 122a, a second side wall 122b and a top wall 123, wherein the top wall 123 includes a first top wall portion 1231 and a second The top wall part 1232 forms an opening extending along the length direction of the outer rail 12 between the two, so that the inner rail 11 covered by the outer rail 12 can be connected with the seat.

Wherein, the first top wall part 1231 is connected to the bottom wall 121 through the first side wall 122a, and the second top wall part 1232 is connected to the bottom wall 121 through the second side wall 122b. The bottom wall 121 of the outer rail 12 .

In a specific solution, the middle portion of the bottom wall 121 of the outer rail 12 has a downwardly recessed recess, so that the bottom wall 121 includes a first bottom wall segment 1211 corresponding to the first top wall portion 1231 on one side of the recess and The second bottom wall section 1212 corresponding to the second top wall section 1232 located on the other side of the recessed portion, the aforementioned support portion is specifically formed on the first bottom wall section 1211 and the second bottom wall section 1212 .

Wherein, the arrangement of the recessed portion facilitates the connection of the outer rail 12 with the vehicle body or the base, and avoids interference with the sliding parts of the inner rail 11 and the drag chain 50 . It can be understood that, because the groove bottom wall 1213 of the recess is lower than the first bottom wall section 1211 and the second bottom wall section 1212, the connecting piece between the outer rail 12 and the vehicle body or the base can be accommodated in the recess and not higher than the first bottom. The wall section 1211 and the second bottom wall section 1212 will not affect the sliding of the inner rail 11 and the sliding of the drag chain 50 .

During actual setting, the bottom of the inner rail 11 can be provided with rollers or other sliding parts to facilitate the sliding of the inner rail 11 relative to the outer rail 12. The first bottom wall section 1211 and the second bottom wall section 1212 of the outer rail 12 are also used to support the inner rail 12. Rail 11 sliding parts.

Specifically, the parts of the first bottom wall section 1211 and the second bottom wall section 1212 close to the recess form a supporting surface for supporting the sliding part of the inner rail 11 .

In this embodiment, for the balance of the structure of the slide rail 10 and the stability during the sliding process of the drag chain 50, the overall structure of the drag chain 50 is generally J-shaped, including a first drag chain segment 51 and a second drag chain segment 52. And the transition towline section 53 connecting the two, wherein the first towline section 51 is supported by the first bottom wall section 1211 of the outer rail 12, and the second towline section 52 is supported by the second bottom wall section 1212 of the outer rail 12 , it can be understood with reference to FIG. 4 that the transition towline segment 53 is suspended above the recessed portion of the bottom wall 121, and its connection with the second towline segment 52 is obviously supported by the second bottom wall segment 1212. The junction of the segments 51 is obviously supported by the first bottom wall segment 1211 .

Wherein, the first drag chain section 51 is detachably connected to the first side wall 122a of the outer rail 12, so as to facilitate the adjustment of the connection position between the drag chain 50 and the outer rail 12 as required, and the end of the second drag chain section 52 is connected with a connection The sleeve 54 is used for detachably connecting with the inner rail 11 through the connecting sleeve 54 .

It can be understood that, comparatively speaking, the length of the first drag chain segment 51 is smaller than that of the second drag chain segment 52 , and both are substantially parallel.

Specifically, the parts of the first bottom wall section 1211 and the second bottom wall section 1212 close to the side walls are supporting walls supporting the corresponding towline sections.

In actual setting, the specific shape and structure of the connecting sleeve 54 are designed on the basis of being able to suitably connect the second drag chain segment 52 and the inner rail 11 , and are not specifically limited.

In a specific solution, the first towline segment 51 is connected to the first side wall 122a of the outer rail 12 through a buckle connection, the structure is simple and easy to implement, and the assembly is convenient.

Specifically, the first side wall 122a of the outer rail 12 is provided with a bayonet 1221a, and the wall part of the first drag chain segment 51 connected to the first side wall 122a is provided with an elastic buckle 511 that is engaged with the bayonet 1221a. As can be seen from Fig. 5, the elastic buckle 511 can be specifically provided with two elastic clamps, each elastic clamp has an outwardly turned flange, and when assembled, the two elastic clamps can be compressed to pass through the first elastic clamp. The bayonet socket 1221a of the side wall 122a is released, and the two elastic clips are opened under the action of the elastic restoring force, and the step portion formed by the flanging and the elastic clip body is stuck against the opposite wall of the bayonet socket 1221a, so that Realize the snap fit of the two.

Of course, in addition to the above clamping manner, the first drag chain segment 51 and the first side wall 122a of the outer rail 12 can also be detachably connected in other ways.

In a specific scheme, among the connecting sleeve 54 and the inner rail 11 of the towline 50, one is provided with a convex portion, and the other is provided with a concave portion that is inserted and fitted with the convex portion, and the convex portion and the concave portion are interference fit, that is, The connection between the drag chain 50 and the inner rail 11 is realized through the tight insertion of the concave part and the convex part.

In the solution shown in the figure, one side wall of the inner rail 11 has an extension plate 111 extending toward the direction of the towline 50, and a groove portion 541 is formed on the side of the connecting sleeve 54 of the towline 50 corresponding to the extension plate 111. When assembling, the inner The extension plate 111 of the rail 11 is inserted into the groove portion 541 of the connecting sleeve 54 to tightly match it. It can be understood that the extension plate 111 is the aforementioned convex portion, and the groove portion 541 is the aforementioned concave portion.

Further, in order to ensure the reliability of the cooperation between the extension plate 111 and the groove portion 541, the groove wall corresponding to the groove portion 541 and the extension plate 111 can be provided with an elastic clamping plate 5411, and the extension plate 111 is provided with a through hole 1111, and is configured as: When the extension plate 111 is inserted into the groove portion 541 , the elastic clamping plate 5411 can be engaged with the through hole 1111 to prevent the connection sleeve 54 from detaching from the extension plate 111 .

Specifically, the connecting end of the elastic clip 5411 and the groove portion 541 is close to the direction of the inner rail 11, the free end of the elastic clip 5411 is close to the direction of the drag chain 50, and the thickness of the elastic clip 5411 is from the inner rail 11 to the direction of the drag chain 50. The direction gradually increases, and its free end has a stepped structure that engages with the hole wall of the through hole 1111. In this way, when the extension plate 111 is inserted into the groove portion 541, the elastic clamping plate 5411 can be pressed outward, and the insertion Finally, after the elastic clamping plate 5411 recovers, the stepped structure at its free end can just be locked against the hole wall of the through hole 1111 .

In this embodiment, there are two slide rails 10 of the electric slide rail. As shown in Figure 1, the two slide rails 10 are arranged in parallel. Two, that is to say, each slide rail 10 is provided with a towline 50 , and each towline 50 is threaded with a cable.

The cables are connected to the controller 40 or other control components of the seat and the overall control or power supply system of the vehicle body as required, so as to facilitate the setting of the connecting cables for seat-related controls, making the overall structure more compact.

The electric slide rail of the car seat provided by the present invention has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (10)

1. The electric slide rail of the car seat, comprising a slide rail and a cable, the slide rail includes a matching inner rail and an outer rail, and is characterized in that it also includes a drag chain, and the cable is passed through the In the drag chain, the drag chain is placed in the rail cavity of the outer rail, and the outer rail has a support part that slides and supports the drag chain; one end of the drag chain is connected to the outer rail, and the other end is connected to the outer rail. The inner rail connection described above. 2. The electric slide rail according to claim 1, wherein the outer rail comprises a bottom wall, a first side wall, a second side wall and a top wall, and the top wall comprises a first top wall part and a second side wall Two top wall parts, an opening extending along the length direction of the outer rail is formed between them, the first top wall part is connected to the bottom wall through the first side wall, and the second top wall part is connected to the bottom wall through the first side wall The second side wall is connected to the bottom wall; the support portion is formed on the bottom wall. 3. The electric slide rail according to claim 2, wherein the middle part of the bottom wall has a downwardly recessed recess, and the bottom wall includes a first bottom wall section on one side of the recess and a The second bottom wall segment located on the other side of the recess, the support portion is specifically formed on the first bottom wall segment and the second bottom wall segment; the drag chain includes a first drag chain segment, a second drag chain segment Two drag chain segments and a transition drag chain segment connecting the first drag chain segment and the second drag chain segment, the first bottom wall segment and the second bottom wall segment are respectively used to support the first drag chain segment drag chain segment and the second drag chain segment. 4. The electric slide rail according to claim 3, characterized in that, the first drag chain segment is detachably connected to the first side wall connected to the first bottom wall segment. 5 . The electric slide rail according to claim 4 , wherein the first side wall has a bayonet socket, and the first towline segment is provided with an elastic buckle that engages with the bayonet socket. 6 . 6. The electric slide rail according to claim 3, characterized in that, the end of the second drag chain section is provided with a connecting sleeve, and the second drag chain section can be connected to the inner rail through the connecting sleeve. Disconnect the connection. 7. The electric slide rail according to claim 6, characterized in that, one of the connecting sleeve and the inner rail is provided with a convex portion, and the other is provided with a concave portion that fits with the convex portion , the convex part is in interference fit with the concave part. 8. The electric slide rail according to claim 7, characterized in that, one side wall of the inner rail has an extension plate extending toward the towline, and the connecting sleeve forms a side portion corresponding to the extension plate There is a groove portion, the extension plate forms the convex portion, and the groove portion forms the concave portion. 9. The electric slide rail according to claim 8, wherein the extension plate is provided with a through hole, and the groove wall corresponding to the extension plate is provided with an elastic clamping plate, and the extension plate In a state of being inserted into the groove portion, the elastic clamping plate is locked against the through hole, so as to prevent the connecting sleeve from detaching from the extension plate. 10. The electric slide rail according to any one of claims 1-9, characterized in that there are two slide rails, and two drag chains are set corresponding to the two slide rails, each The cables are threaded through each of the towlines.