Patent ID: 11971681
Assignee: CANON KABUSHIKI KAISHA
Field: Optics (Instruments)
Classification: CPC G  F  H  B | IPC B  F  G  H

Claim 5:
6. The coupling structure according to claim 5,
wherein the first sheet metal is provided with a first through hole,
wherein the second sheet metal is provided with a second through hole which is the second conductive portion,
wherein the screw member includes a conductive member having a head portion having a seat surface and a screw portion inserted into the first through hole and the second through hole,
wherein a diameter of the first through hole is smaller than a diameter of the head portion,
wherein a diameter of the second through hole is smaller than the diameter of the first through hole,
wherein the first conductive portion is formed around the first through hole of a surface on a side opposite to the second sheet metal and exposes the metal layer at least where the insulative layer is removed, and
wherein the screw portion of the screw member is screwed in the second through hole so that the seat surface comes in contact with the first conductive portion.