Nifco Inc.

Satoshi Kabeya

Takehiro Sato

A hole plug attachment structure includes: a first attachment-target member is formed with a first attachment hole; a second attachment-target member is formed with a second attachment hole; and a hole plug that includes a tube-shaped outer peripheral wall, a blocking portion, a ring shaped flange jutting out toward a radial direction outer side of the outer peripheral wall from an end portion of the outer peripheral wall on an opposite side from an insertion direction so as to cover a location surrounding the second attachment hole, and a hook portion, a location of the flange that abuts an edge of the second attachment hole being thicker than a location of the flange that abuts the edge of the first attachment hole, in a state in which a back face of the flange abuts both the edge of the first attachment hole and the edge of the second attachment hole.

Hole plug attachment structure

A hole plug includes: a tube-shaped outer peripheral wall configured to be inserted into an attachment hole formed in an attachment-target member; a blocking portion-close off the inside of the outer peripheral wall; a ring-shaped flange that juts out toward a radial direction outer side of the outer peripheral wall from an end portion of the outer peripheral wall on an opposite side from an insertion direction so as to cover a location surrounding the attachment hole; a hook portion engage with an edge of the attachment hole; and a plurality of recess portions that are formed at a front face of a base end portion of the flange at intervals around a circumferential direction of the flange, each of the recess portions including a bottom portion with a planar face profile or a curved face profile.

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Kariya, Japan

Satoshi Kabeya