JPH0239397Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a piping and wiring structure for a seat, and more specifically, a seat back is rotatably hinged to a seat cushion, and a member housed within the seat back; The present invention relates to a piping and wiring structure for a seat that communicates components housed in the seat cushion with communication members such as tubes and cords.

Generally, in a vehicle seat, etc., as shown in FIG.
For example, an air pump as a seat cushion 2 and various air support mats as a member 4 housed in the seat cushion 2 are connected by an air tube or the like as a connecting member 5.

However, conventionally, no consideration has been given to troubles of the connecting member 5 caused by tensile or compressive loads due to bending, etc. applied to the connecting member 5, and therefore, when reclining the seat bag 1 or during durability tests, the tubes, cords, etc. There is a risk that the communication member 5 such as the like may be damaged or damaged, and there is a problem that it will not be able to perform its intended function. Further, when the seat back 1 is tilted backward, the connecting member 5 becomes loose, and there is a risk that the feet of the person seated in the rear seat may get caught in the loosened connecting member 5.

The purpose of this invention is to reduce troubles such as loss or damage to connecting members such as tubes and cords, and to prevent the connecting members from loosening when the seat back is tilted backwards, so that the feet of rear seat occupants will not get caught. The purpose of the present invention is to provide a piping and wiring structure for a seat that is safe and has no risk of damage, and that can improve the appearance, and will be described in detail below with reference to the drawings.

FIG. 2 schematically shows an embodiment of the piping and wiring structure of a seat according to the present invention, in which a seat back 1 is rotatably hinged to a seat cushion 2. The seat back 1 can be freely adjusted in rotation angle by a reclining mechanism (not shown) provided on one side. A hinge bracket 7 is fixed to the seat cushion claim 6, a hinge arm 9 of a seat bag frame 8 is disposed on one side of the bracket 7, and the hinge bracket 7 and the hinge arm 9 are connected to the hinge bolt 1.
1, and is rotatably hinged.

As shown in FIGS. 3 and 4, the hinge bolt 11 is formed with two steps, and has a hexagonal head 12 and a cylindrical portion 13, and a threaded portion at the tip of the cylindrical portion 13. 14 is formed. Further, the hinge bolt 11 has a through hole 5 bored in the direction of the central axis extending from the head 12 to the threaded portion 14 .

By inserting the threaded portion 14 of the hinge bolt 11 into the pivot hole 9a of the hinge arm 9 and the pivot hole 7a of the hinge bracket 7, respectively, and screwing it into the nut 17 disposed inside the hinge bracket 7, the hinge arm 9 is rotatably supported on the hinge bracket 7. In the above embodiment, the hinge arm 9 is located outside the hinge bracket 7, but the opposite position may be used.

A connecting member 5 such as a tube or cord that connects the member 3 housed in the seat bag 1 and the member 4 housed in the seat cushion 2 is led out from one side of the seat bag 1 and connected to the hinge bolt 11. is inserted from the head 12 side of the through hole 15,
It is introduced into the seat cushion 2 from the tip of the threaded portion 14.

Therefore, in the piping and wiring structure described above, since the connecting member 5 is penetrated through the center of the hinge bolt 11, even if the seat bag 1 is reclined or a durability test is performed, the connecting member 5 will not be unreasonably bent. Since no tensile or compressive load is applied to the connecting member 5, troubles such as breakage and damage to the connecting member 5 can be significantly reduced.
It is possible to obtain a seat piping and wiring structure that does not come loose, eliminates the risk of the feet of rear seat occupants getting caught, is excellent in safety, and further improves the appearance.

In the above-mentioned embodiment, an air tube for an air support mat was explained as the communication member 5, but in the case of an electric seat, various cords can be inserted through the through hole 15 of the hinge bolt 11.
It is also possible to insert both an air tube and a cord. Furthermore, the present invention has a simple structure and can be applied to all seats having the hinge arm 9 of the seat back 1.

[Brief explanation of the drawing]

Fig. 1 is a side view of a conventional seat, Figs. 2 to 4 schematically show an embodiment of the piping and wiring structure of the seat according to the present invention, and Fig. 2 is a perspective view of the seat. , FIG. 3 is a longitudinal sectional view, and FIG. 4 is an exploded perspective view. In the figure, 1... Seat bag, 2... Seat cushion, 3... Member housed in the seat bag, 4... Member housed in the seat cushion, 5... Connection member, 6... Seat cushion frame, 7... Hinge bracket, 8... Seat back frame, 9... Hinge arm, 11
...Hinge bolt, 15...Through hole.

Claims (1)

[Scope of utility model registration request] In the seat piping and wiring structure, a hinge bracket is formed at the rear end of the seat cushion frame, and a hinge arm formed at the lower end of the seat back frame is hingedly connected to the hinge bracket by a hinge bolt. A pivot hole for inserting a hinge bolt is formed in each of the hinge arms, and a cylindrical portion is formed in the hinge bolt to be rotatably supported in the pivot hole formed in the hinge arm, and a tube having a through hole formed therethrough in the direction of the central axis and communicating between a member housed in the seat bag and a member housed in the seat cushion;
A piping and wiring structure for a seat, characterized in that a communication member such as a cord is inserted through a through hole of the hinge bolt.