Wire harness routing apparatus

Patent metadata

Field	Value
Publication number	US-11325547-B2
Application number	US-201917054732-A
Country	US
Kind code	B2
Filing date	May 14, 2019
Priority date	May 25, 2018
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

A wire harness routing apparatus disclosed by the present specification is a wire harness routing apparatus (10) that is to be attached to a rotation platform (80) that allows a seat (S) to be rotated with respect to a base portion (90) provided in a vehicle, the wire harness routing apparatus (10) including a wire harness (20) that is arranged between the seat (S) and the base portion (90), and a case (40) that rotates accompanying the rotation of the seat (S) in a state of accommodating the wire harness (20), wherein the case (40) is arranged on the inner side in the radial direction of the rotation platform (80) using the rotation axis of the rotation platform (80) as a reference.

First claim

What is claimed is:

1. A wire harness routing apparatus configured to be attached to a rotation mechanism that allows a seat to be rotated with respect to a base portion provided in a vehicle, the wire harness routing apparatus comprising:
a wire harness that is arranged between the seat and the base portion; and
a case configured to rotate accompanying rotation of the seat in a state of accommodating the wire harness,
wherein the rotation mechanism includes a ring-shaped base-side pedestal that is fixed to the base portion, and a ring-shaped seat-side pedestal that is smaller than the base-side pedestal, is fixed to the seat, and allows the seat to be rotated due to being rotatably attached to an inner side of the base-side pedestal, and
the case is arranged on an inner side in a radial direction of the seat-side pedestal using a rotational axis of the rotation mechanism as a reference.

2. The wire harness routing apparatus according to claim 1 , wherein the case is formed into a circular shape so as to extend along an inner peripheral surface of the seat-side pedestal.

3. The wire harness routing apparatus according to claim 2 , comprising
a base-side fixing member that is fixed to the base portion in a state of holding an end portion on the base portion side of the wire harness pulled out from the case toward the base portion, and that is configured to rotate relative to the case accompanying rotation of the seat,
wherein the case includes a gap that is formed along a side wall of the case, and through which the base-side fixing member is inserted, and
a side wall of the case is provided with a harness reception portion that is provided protruding inward in a radial direction and receives the wire harness when the wire harness is arranged along the side wall.

4. The wire harness routing apparatus according to claim 1 , comprising
a base-side fixing member that is fixed to the base portion in a state of holding an end portion on the base portion side of the wire harness pulled out from the case toward the base portion, and that is configured to rotate relative to the case accompanying rotation of the seat,
wherein the case includes a seat-side fixing portion that fixes an end portion on the seat side of the wire harness to a vicinity of a rotational center of the case, and
the wire harness from the base-side fixing member to the seat-side fixing portion is wrapped by the seat-side fixing portion due to the case being rotated in one direction, and the wrapped wire harness is unwrapped and surrounds the seat-side fixing portion once due to the case being rotated in another direction, which is a direction opposite to the one direction.

5. The wire harness routing apparatus according to claim 4 , wherein the seat-side fixing portion includes a rounded overhang portion at which the wire harness is arranged loosely along a wrapping center side of the wire harness when the wire harness is wrapped.

6. The wire harness routing apparatus according to claim 3 , wherein the wire harness is constituted by including an outer covering body that can elastically deform, a wire that is inserted through the outer covering body, and an elastic wire material that is inserted through the outer covering body together with the wire and causes the outer covering body to loosely curve.

7. The wire harness routing apparatus according to claim 3 , wherein the wire harness is constituted by including an outer covering body that restricts bending in a direction different from a wrapping direction, and a wire that is inserted through the outer covering body and moves in the case together with the outer covering body.

Assignees

• Autonetworks Technologies Ltd
• Sumitomo Wiring Systems
• Sumitomo Electric Industries

Inventors

• Yamamoto Satoshi
• Ohara Kazuyoshi

Classifications

• H02G11/02 Primary

  using take-up reel or drum · CPC title

• H02G3/06

  Joints for connecting lengths of protective tubing {or channels}, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint · CPC title

• B60N2/14

  rotatable, e.g. to permit easy access (B60N2/10 {, B60N2/2869} take precedence) · CPC title

• H02G11/00

  Arrangements of electric cables or lines between relatively-movable parts · CPC title

• B60R16/0215

  Protecting, fastening and routing means therefor · CPC title