Patent ID: 8308115

Claim:
An in-vehicle holder support device for freely and detachably supporting an in-vehicle holder unit at an arbitrary attaching position in a vehicle interior portion, comprising: a substantially circular base portion arranged in said attaching position; and a holding portion arranged coaxially with said base portion at a given distance from said base portion via a connecting portion of a smaller diameter than that of said base portion, said holding portion having substantially the same circular shape and substantially the same size as said base portion, wherein in a peripheral edge of an opposed surface to said holding portion, said base portion is formed with a sloping surface which slopes toward said vehicle interior portion for attaching the in-vehicle holder unit thereto while an opposed surface of said holding portion to said base portion is formed flat, and besides said opposed surface of said holding portion is arranged substantially perpendicularly to an axial direction of said connecting portion, wherein a width of a gap between said base portion and said holding portion is wider at an outer edge of said base portion and said holding portion compared to a gap between said base portion and said holding portion located at said connecting portion so as to fit an attaching portion of said in-vehicle holder unit into said gap by only inserting the attaching portion into said gap, wherein an external surface of the holding portion is formed with a columnar depression coaxially with the holding portion, a through-hole is bored at the bottom of the depression so as to vertically penetrate the base portion, the base portion is fixed to the attaching position by a fastening member penetrating the through-hole from the depression of the holding portion, and then a cap is fitted into the depression, so that the cap comes to cover over the fastening member, wherein an exterior side of said base portion, opposite to an interior side of said base portion facing the holding portion, is configured to press against the vehicle interior portion.