Conductive structural body and conduction method
A conductive structural body is a conductive structural body that forms a conductive path in an annular gap. The conductive structural body includes a closure member that is annular around an axis line x and closes a gap, and a conductive path member that is annular around the axis line x and forms a conductive path. The conductive path member penetrates the closure member in a radial direction.
1 . A conductive structural body, comprising:
a conductive path member that is annular around an axis line and is configured to form-forms a conductive path in an annular gap, the conductive path member includes a conductive member that is annular around the axis line and formed of resin rendered conductive, wherein the resin comprises PTFE and is configured to form the conductive path; and
a closure member that is annular around the axis line and includes a first body portion that is a sealing device configured to seal lubricants, wherein
the conductive path member is located next to the first body portion,
the first body portion includes an elastic body portion that is an annular member around the axis line and is formed of an elastic material, and
the elastic body portion includes a gasket portion that is an annular portion around the axis line and is configured to seal an outer periphery side of the conductive structural body.
2 . The conductive structural body according to claim 1 , wherein the closure member and the conductive path member are integrated.
3 . The conductive structural body according to claim 1 , wherein
the closure member includes a second body portion, and
the first body portion and the second body portion are configured to be able to be attached to each other in a direction of the axis line with the conductive path member sandwiched in between.
4 . The conductive structural body according to claim 3 , wherein
the first body portion includes a reinforcement ring that is an annular member around the axis line,
the second body portion includes a support ring that is an annular member around the axis line,
the elastic body portion of the first body portion is attached to the reinforcement ring and includes a seal lip that is annular and is configured to contact the output shaft, and
the support ring covers the first body portion from an outer peripheral side through the conductive path member.
5 . The conductive structural body according to claim 3 , wherein
the elastic body portion includes a support portion that is an annular portion around the axis line and is formed adjacent to the gasket portion in the axis line direction, and
the second body portion is press-fitted into the support portion.
6 . The conductive structural body according to claim 1 , wherein
the conductive member includes an inner periphery end portion that is an annular portion around the axis line, and
the inner periphery end portion is configured to contact an output shaft.
7 . The conductive structural body according to claim 1 , wherein
the gasket portion is exposed on the outer periphery side of the conductive structural body.
8 . The conductive structural body according to claim 1 , wherein
the conductive path member includes a conductive metal ring that has a disk-shaped portion that contacts a disk-shaped portion of the conductive member, and
the elastic body portion includes a support portion that is an annular portion around the axis line and is formed adjacent to the gasket portion in the axis line direction, and
the conductive metal ring is press-fitted into the support portion.
9 . A differential device, comprising:
an output shaft having an axis line;
a conductive path member that is annular around the axis line and forms a conductive path in an annular gap around the output shaft, the conductive path member includes a conductive member that is annular around the axis line and formed of resin rendered conductive, wherein the resin comprises PTFE and forms the conductive path in the annular gap, and
a closure member that is annular around the axis line and includes a first body portion that is a sealing device for sealing lubricants, the first body portion being located next to the conductive path member, wherein
the first body portion includes an elastic body portion that is an annular member around the axis line and is formed of an elastic material, and
the elastic body portion includes a gasket portion that is an annular portion around the axis line and is configured to seal an outer periphery side of the conductive structural body.