Abstract: A belt tension detecting apparatus and a child seat provided with the belt tension detecting apparatus. A tension indicator includes a roller arranged on a belt at a midsection in the direction of extension thereof, a case accommodating the roller so as to be capable of rotating in the belt retracting direction and in the belt withdrawing direction, and a spring which urges the roller in the belt retracting direction. The roller includes a slit through which the belt passes. When a tension equal to or larger than a predetermined value is applied to the belt, a different color portion is seen through a window to indicate that the roller is rotated in the belt withdrawing direction.

Abstract: A power supply device for a sliding door includes an extra-length absorbing unit, a door side fixing unit fixed to a sliding door, a flexible tube extending from the extra-length absorbing unit to the door side fixing unit, and a wire harness wired from a vehicle body through the extra-length absorbing unit, the flexible tube and the door side fixing unit to the sliding door. The extra-length absorbing unit includes a case having a gate for the flexible tube, a rotating drum for winding the flexible tube in the case, and a torsion spring for providing a turning force with the rotating drum in a winding direction of the flexible tube.

Abstract: A power supply device for a sliding door comprising an extra-length absorbing unit, a door side fixing unit fixed to a sliding door, a flexible tube extending from said extra-length absorbing unit to said door side fixing unit, and a wire harness wired from a vehicle body through said extra-length absorbing unit, said flexible tube and said door side fixing unit to the sliding door, wherein said extra-length absorbing unit includes a case having a gate for said flexible tube, a rotating drum for winding said flexible tube in the case, and a torsion spring for providing a turning force with said rotating drum in a winding direction of said flexible tube, an end portion at the vehicle body of said flexible tube being fixed on the rotating drum, a portion at the vehicle side of said wire harness being fixed to the rotating drum in a vicinity of the end portion of said flexible tube, said flexible tube being wound in spiral within the rotating drum, a spiral inner peripheral portion thereof being fixed to a cente