WO2022257853A1

WO2022257853A1 - Seat leg support extension wire harness

Info

Publication number: WO2022257853A1
Application number: PCT/CN2022/096861
Authority: WO
Inventors: 徐超; 崔琦; 李芳琴
Original assignee: 延锋国际汽车技术有限公司
Priority date: 2021-06-07
Filing date: 2022-06-02
Publication date: 2022-12-15
Also published as: CN214929502U

Abstract

A seat leg support extension wire harness. A leg support (2) is telescopically connected to a connecting structure (3) of a seat (1) by means of an extension mechanism. The extension wire harness comprises: a tank chain (4), a first end of the tank chain (4) being connected to the connecting structure (3), and a second end of the tank chain (4) being connected to the leg support (2); and a wire (5) provided on the tank chain (4) in a penetrating mode, a first end of the wire (5) penetrating out of the tank chain (4) and being in butt joint with a wire harness (6) of the seat (1), and a second end of the wire (5) penetrating out of the tank chain (4) and being connected to an electric appliance (7) of the leg support (2). The seat leg support extension wire harness is compact in structure, small in occupied space and capable of effectively avoiding the problems that the extension wire harness is exposed and prone to being damaged, etc, and is therefore appliable to a multifunctional leg support structure.

Description

Seat leg rest extension harness

technical field

The invention relates to a car seat, in particular to a seat leg support extension wire harness.

Background technique

Because when the passenger sits on the car seat, the calf part is in a suspended state, which cannot meet the comfort requirements of the passenger. In order to solve the above problems, electric leg rests are usually set on the existing car seat, so that when the passenger sits on the seat , the calf is not hanging in the air, allowing passengers to relax naturally on the body, thus meeting the comfort requirements of passengers.

However, as passengers continue to pursue comfort, the functional parts of the electric leg rest continue to increase, and its internal structure space becomes more and more compact, while the layout space for the extension harness of the leg rest becomes narrower and harsher. There are often problems such as the leg support extension wire harness is exposed and easily damaged.

Contents of the invention

In order to solve the above problems, the present invention provides a seat leg support extension wire harness, which has a compact structure, takes up little space, and effectively avoids the problems of the extension wire harness being exposed and easily damaged, so it is suitable for multifunctional leg rest structures.

The present invention is realized through the following scheme: a seat leg support extension wire harness, the leg support is telescopically connected to the connecting structure of the seat through an extension mechanism, and the extension wire harness includes:

a tank chain, the first end of the tank chain is connected to the connection structure, and the second end of the tank chain is connected to the leg support;

The wire that passes through the tank chain, the first end of the wire passes through the tank chain and docks with the harness of the seat, the second end of the wire passes through the tank chain and connects with the Electrical connections for leg rests.

A further improvement of the seat leg support extension wire harness of the present invention lies in that the length of the tank chain is not less than the maximum extension length of the leg support.

The further improvement of the seat leg support extension wiring harness of the present invention lies in that the first sheet metal part for the first end of the tank chain is fixed on the connecting structure, and the leg support is fixed with the first sheet metal part for the tank chain. The second sheet metal part that the second end connects to.

The further improvement of the seat leg support extension wire harness of the present invention is that a first connector is detachably connected between the first end of the tank chain and the first sheet metal part, and the second end of the tank chain is connected to the first sheet metal part. A second connector is detachably connected between the second sheet metal parts.

The further improvement of the seat leg support extension wire harness of the present invention is that the first connector is connected between the first end of the tank chain and the first sheet metal part by bolts, and the second connector is connected by bolts It is connected between the second end of the tank chain and the second sheet metal part.

A further improvement of the extension wire harness of the seat leg rest of the present invention is that the first sheet metal part is provided with a fixing buckle for connecting the wire harness of the seat with the first end of the wire.

A further improvement of the seat leg support extension wire harness of the present invention is that the wires are bound with cable ties at both ends of the tank chain.

The present invention is also achieved through the following scheme: a seat leg support extension wire harness, the leg support is telescopically connected to the connecting structure of the seat through an extension mechanism, characterized in that the extension wire harness includes:

The wire harness of the seat of the tank chain is passed through, and the first end of the wire harness of the seat passes through the tank chain and leads to the seat, and the second end of the wire harness of the seat passes through The tank chain is also connected with the electrical appliances of the leg rests.

A further improvement of the seat leg support extension wire harness of the present invention is that the seat wire harness is bound with cable ties at both ends of the tank chain.

A further improvement of the seat leg support extension wire harness of the present invention is that the imaginary connecting line of the first end and the second end of the tank chain and the extending direction of the leg support are at an angle to each other or transverse to the extending direction.

The further improvement of the seat leg support extension wire harness of the present invention is that the tank chain has a plurality of successively arranged sections, the adjacent sections are hinged to each other, and each section encloses a receiving through hole, which can be used for the seat. The harness goes through.

The present invention includes but not limited to the following beneficial effects:

1. Through the setting of the tank chain and the connection method of passing the tank chain through the wire or the harness of the seat, it avoids the problems of the wire or the harness of the seat being exposed and easily damaged during the stretching process of the leg support, and occupies a small space. Suitable for multifunctional leg rest structures with limited internal structure space.

2. By limiting the length of the tank chain, the normal expansion and contraction of the leg support is guaranteed.

3. Through the setting of the first sheet metal part and the second sheet metal part, it is convenient to fix the two ends of the tank chain and ensure the bending direction of the tank chain.

4. The detachable connection structure of the first connector and the second connector facilitates disassembly, maintenance and turnover of the tank chain.

Description of drawings

Fig. 1 shows a schematic structural diagram of a seat assembly including a leg rest.

Fig. 2 shows a schematic structural view of the contracted state of the leg rest of the present invention.

Fig. 3 shows a schematic diagram of the structure of the extended state of the leg support of the present invention.

FIG. 4 shows an enlarged schematic view of part A of FIG. 3 .

Fig. 5 shows a schematic diagram of the connection structure of the tank chain, sheet metal parts and connectors in the present invention.

Fig. 6 shows a schematic diagram of the connection structure between the tank chain and the wire or the harness of the seat in the present invention.

FIG. 7 shows a B-B sectional view of FIG. 6 .

Detailed ways

In order to solve the problems of the existing multifunctional electric leg rests, such as the exposed and easily damaged leg rest extension wire harness due to the narrow internal structure space, the present invention provides a seat leg rest extension wire harness, which has a compact structure, takes up little space, and It effectively avoids the problems of the extension wire harness being exposed and easily damaged, so it is suitable for multi-functional leg rest structures.

The seat leg rest extension wire harness will be further described below with specific embodiments in conjunction with the accompanying drawings.

Referring to Figures 1 to 3, Figure 1 shows a schematic structural view of the seat assembly including the leg rest 2, Figure 2 shows a schematic structural view of the leg rest of the present invention in a retracted state, and Figure 3 shows a structure of the leg rest in an extended state of the present invention schematic diagram.

The drawing exemplarily shows the extension harness of the seat leg rest. The leg rest 2 is telescopically connected to the connection structure 3 of the seat 1 through the extension mechanism. The extension harness includes:

A tank chain 4, the first end 14 of the tank chain 4 is connected to the connecting structure 3, and the second end 15 of the tank chain 4 is connected to the leg support 2;

The wire 5 passing through the tank chain 4, the first end of the wire 5 passes through the tank chain 4 and docks with the harness 6 of the seat, the second end of the wire 5 passes through the tank chain 4 and connects with the The electrical consumer 7 of leg support is connected. In some embodiments, the independent wire 5 can be discarded, but the wire harness 6 of the seat is directly passed through the tank chain 4 . That is to say, the cable harness 6 of the seat can pass through the tank chain 4 from the first end 14 of the tank chain 4 with its part close to the leg rest 2 and pass out from the second end 15 of the tank chain 4 . This is advantageous because it is not necessary to additionally add a separate wire 5 separate from the harness 6 of the seat, thereby reducing the number of components and saving costs, and thus reducing the complexity of installation because the separate wire 5 and the seat harness 6 are omitted. 6 of the wire harnesses are connected to each other.

Specifically, the length of the tank chain 4 is not less than the maximum extension length of the leg support 2, and the first end 14 and the second end 15 of the tank chain 4 are fixed in a misplaced position, that is, the imaginary connecting line of the two can be connected with the legs. The stretching directions of the support 2 are at an angle to each other or can be transverse to the stretching direction, so as to meet the turning radius of the tank chain 4 , thereby ensuring that the tank chain 4 can move with the expansion and contraction of the leg support 2 . Through the setting of the tank chain 4 and the connection mode that the wire harness 6 of the wire 5 or the seat passes through the tank chain 4, the wire harness 6 of the wire 5 or the seat is prevented from being exposed and easily exposed during the stretching process of the leg rest 2. In order to solve problems such as being damaged, the seat leg rest extension wire harness of this embodiment has a compact structure and takes up little space, and is suitable for a multi-functional leg rest structure with a narrow internal structural space.

Referring to FIGS. 4 to 7 , the tank chain 4 may have a plurality of successively arranged sections, and adjacent sections may be hinged to each other, thereby allowing arbitrary bending of the tank chain 4 . Each section can surround a receiving through hole 16, which can be used for the lead wire 5 or the harness 6 of the seat to pass through (see FIG. 7).

As a preferred embodiment, referring to Fig. 4 to Fig. 7, the first sheet metal part 8 for the first end 14 of the tank chain 4 is fixed on the connecting structure 3, and the first sheet metal part 8 for connecting the first end 14 of the tank chain 4 is fixed on the leg rest 2. The second end 15 of the tank chain 4 is connected to the second sheet metal part 9 .

Specifically, the first sheet metal part 8 is welded and fixed on the connection structure 3 , and the second sheet metal part 9 is welded and fixed on the leg support 2 . Through the setting of the first sheet metal part 8 and the second sheet metal part 9, it is convenient to fix the first end 14 and the second end 15 of the tank chain 4, ensuring the bending direction of the tank chain 4, making it It can move with the expansion and contraction of the leg support 2 .

As a preferred embodiment, referring to Fig. 4 and Fig. 5, Fig. 4 shows an enlarged schematic view of part A of Fig. 3, and Fig. 5 shows a tank chain 4,

sheet metal parts

8, 9,

connector

10, 11. Schematic diagram of the connection structure. A first connector 10 is detachably connected between the first end 14 of the tank chain 4 and the first sheet metal part 8, and between the second end 15 of the tank chain 4 and the second sheet metal part 9 A second connector 11 is detachably connected therebetween.

Specifically, the first connector 10 is connected between the first end 14 of the tank chain 4 and the first sheet metal part 8 by bolts, and the second connector 11 is connected to the first end 14 of the tank chain 4 by bolts. Between the two ends 15 and the second sheet metal part 9 . That is to say, the first joint of the tank chain 4 is connected with the first connector 10 by bolts, and the first connector 10 is connected with the first sheet metal part 8 by the same or another bolt; the last joint of the tank chain 4 is connected with The second connector 11 is connected by bolts, and the second connector 11 is connected with the second sheet metal part 9 by the same or another bolt. Of course, other detachable connection methods may also be used, such as buckle connection, clamping and fixing by a clamping piece, and the like. The detachable connection structure of the first connector 10 and the second connector 11 facilitates disassembly, maintenance and turnover of the tank chain 4 .

As a preferred embodiment, refer to Fig. 6 and Fig. 7, Fig. 6 shows a schematic diagram of the connection structure between the tank chain 4 and the wire 5 or the harness 6 of the seat in the present invention, and Fig. 7 shows a B-B sectional view of Fig. 6 . On the first sheet metal part 8, there is a fixing buckle 12 for docking the first end of the wire harness 6 of the seat and the lead 5. Through the setting of the fixing buckle 12, the connection between the wire 5 and the harness 6 of the seat can be quickly realized. In the above embodiment where no independent wire 5 is provided, the wire harness 6 of the seat can pass through the fixing buckle 12 and be fixed on the first sheet metal part 8 by it. Of course, it is also conceivable to use a cable tie 13 or the like instead of the fastening buckle 12 to fix the cable harness 6 of the seat on the first sheet metal part 8 here. Alternatively, the wire harness 6 of the seat may not be fixed here, so that the fixing buckle 12 or the cable tie 13 etc. are omitted here.

As a preferred embodiment, as shown in FIG. 5 and FIG. 6 , the wire 5 or the harness 6 of the seat is located at both ends of the tank chain 4 and is bound with cable ties 13 .

Specifically, the first sheet metal part 8 and the second sheet metal part 9 are provided with fixing holes for fixing the corresponding straps 13, through the setting of the straps 13 and the fixing holes, the wire 5 or the seat The wire harness 6 of the chair can be stably attached to the first sheet metal part 8 and the second sheet metal part 9, constraining the winding direction of the wire 5 or the seat wire harness 6, ensuring that the wire 5 or the seat The wiring harness 6 will not swing arbitrarily along with the movement of the tank chain 4, avoiding the exposure of the wire harness 6 of the wire 5 or the seat. Preferably, a limiting baffle for preventing the wire 5 or the harness 6 of the seat from moving in the radial direction can also be provided on the first sheet metal part 8 and/or the second sheet metal part 9 .

The present invention has been described in detail above with reference to the embodiments of the accompanying drawings, and those skilled in the art can make various changes to the present invention according to the above description. Therefore, some details in the embodiments should not be construed as limiting the present invention, and the present invention will take the scope defined by the appended claims as the protection scope of the present invention.

Claims

A seat leg support extension wire harness, the leg support is telescopically connected to the connecting structure of the seat through an extension mechanism, characterized in that the extension wire harness includes:

a tank chain, the first end of the tank chain is connected to the connection structure, and the second end of the tank chain is connected to the leg support;

The wire that passes through the tank chain, the first end of the wire passes through the tank chain and docks with the harness of the seat, the second end of the wire passes through the tank chain and connects with the Electrical connections for leg rests.
The seat leg support extension wire harness according to claim 1, wherein the length of the tank chain is not less than the maximum extension length of the leg support.
The seat leg support extension wiring harness according to claim 1, wherein a first sheet metal part for connecting the first end of the tank chain is fixed on the connecting structure, and a first sheet metal part for connecting the first end of the tank chain is fixed on the leg support. The second end of the tank chain is connected to a second sheet metal piece.
The seat leg rest extension wire harness according to claim 3, wherein a first connector is detachably connected between the first end of the tank chain and the first sheet metal part, and the tank chain A second connector is detachably connected between the second end of the second sheet metal part.
The seat leg rest extension wire harness according to claim 4, wherein the first connector is connected between the first end of the tank chain and the first sheet metal part through bolts, and the first The second connector is connected between the second end of the tank chain and the second sheet metal part through bolts.
The seat leg support extension wire harness according to claim 3, wherein the first sheet metal part is provided with a fixing buckle for connecting the seat wire harness with the first end of the wire.
The seat leg rest extension wire harness according to claim 1, wherein the wires are bound with cable ties at both ends of the tank chain.
The seat leg support extension wire harness according to claim 1, characterized in that, the imaginary connecting line of the first end and the second end of the tank chain and the extending direction of the leg support are at an angle to each other or transverse to the extending direction.
The seat leg rest extension wire harness according to claim 1, wherein the tank chain has a plurality of successively arranged sections, adjacent sections are hinged to each other, and each section encloses a receiving through hole, and the receiving through hole Allows wires to pass through.
A seat leg support extension wire harness, the leg support is telescopically connected to the connecting structure of the seat through an extension mechanism, characterized in that the extension wire harness includes:

a tank chain, the first end of the tank chain is connected to the connection structure, and the second end of the tank chain is connected to the leg support;

The wire harness of the seat of the tank chain is passed through, and the first end of the wire harness of the seat passes through the tank chain and leads to the seat, and the second end of the wire harness of the seat passes through The tank chain is also connected with the electrical appliances of the leg rests.
The seat leg support extension wire harness according to claim 10, wherein the length of the tank chain is not less than the maximum extension length of the leg support.
The seat leg support extension wiring harness according to claim 10, wherein a first sheet metal part for connecting the first end of the tank chain is fixed on the connecting structure, and a first sheet metal part for connecting the first end of the tank chain is fixed on the leg support. The second end of the tank chain is connected to a second sheet metal piece.
The seat leg support extension wire harness according to claim 12, wherein a first connector is detachably connected between the first end of the tank chain and the first sheet metal part, and the tank chain A second connector is detachably connected between the second end of the second sheet metal part.
The seat leg rest extension wire harness according to claim 13, wherein the first connector is connected between the first end of the tank chain and the first sheet metal part through bolts, and the first The second connector is connected between the second end of the tank chain and the second sheet metal part through bolts.
The seat leg rest extension wire harness according to claim 10, wherein the wire harness of the seat is bound with cable ties at both ends of the tank chain.
The seat leg support extension wire harness according to claim 10, characterized in that, the imaginary connection line of the first end and the second end of the tank chain and the extending direction of the leg rest are at an angle to each other or transverse to the extending direction.
The seat leg rest extension wire harness according to claim 10, wherein the tank chain has a plurality of successively arranged sections, adjacent sections are hinged to each other, and each section encloses a receiving through hole, and the receiving through hole The harness for the seat can be threaded through.