Electrical wire routing device

1. An electrical wire routing device for routing an electric wire across between a car body and a seat disposed slidably with respect to the car body, comprising:

a case including a movement section, to which a slider is slidably attached along a sliding direction of the seat, and a housing section accommodating an extra length of the electric wire,

wherein the electric wire is attached to the slider and is guided into the seat, wherein the movement section and the housing section are placed in a direction perpendicular to the sliding direction and fixed to the car body, and wherein the case is fixed to the car body and wherein the movement section is provided aside from a support rail for the seat; and

a partition wall separating the movement section and the housing section and being disposed between the movement section and the housing section along a whole length of the movement and the housing;

wherein the electric wire is extracted from one end portion of the movement section and drawn into the housing section through one end portion of the housing section, wherein the end portion is positioned near the one end portion of the movement section, and wherein the extra length of the electric wire is accommodated in the housing section while being bent in a U-shape.

2. The electrical wire routing device as claimed in claim 1 , further comprising:

a tube made of elastic and deformable material, the tube accommodating the electric wire; and

a guide member provided with a guide section, the guide section bending the tube extracted from the one of the movement section in a U-shape so as to guide the tube into the one end of the housing section, and guiding the tube so as to abut an inner side surface of the housing section away from the movement section,

wherein the tube is bent in a U-shape in the housing section, and wherein a portion following the U-shape abuts the inner side surface of the housing section near the movement section by force of elastic restitution of the tube.

3. The electrical wire routing device as claimed in claim 2 , further comprising a derivation section disposed in the guide member, the derivation section crossing the electric wire, which is extracted from the tube bent in the housing section, at a vertically different height from a height of the guide section for extracting the electric wire out of the housing section.

4. The electrical wire routing device as claimed in claim 1 , wherein the movement section and the housing section are provided as separated parts, and wherein each of the movement section and housing section includes a side wall as the partition wall.

5. The electrical wire routing device as claimed in claim 4 , wherein each of the movement section and the housing section is formed in a uniform cross-sectional shape along the sliding direction.

6. The electrical wire routing device as claimed in claim 2 , wherein the movement section and the housing section are provided as separated parts, and wherein each of the movement section and housing section includes a side wall as the partition wall.

7. The electrical wire routing device as claimed in claim 3 , wherein the movement section and the housing section are provided as separated parts, and wherein each of the movement section and housing section includes a side wall as the partition wall.

8. The electrical wire routing device as claimed in claim 6 , wherein each of the movement section and the housing section is formed in a uniform cross-sectional shape along the sliding direction.

9. The electrical wire routing device as claimed in claim 7 , wherein each of the movement section and the housing section is formed in a uniform cross-sectional shape along the sliding direction.