The ornamental design for a motorcyclehelmetchin mount for a camera, as shown and described.
FIG. 1 is a front view of a motorcycle helmet chin mount for a camera;
FIG. 2 is a right side view thereof, the left side view being a mirror image;
FIG. 3 is a top side view thereof;
FIG. 4 is a lower side view thereof;
FIG. 5 is a back view thereof;
FIG. 6 is an isometric view thereof; and,
FIG. 7 is an isometric view thereof with a helmet drawn in dash dot lines showing the motorcycle helmet chin mount for a camera in a condition of use.
The features drawn in broken lines in FIGS. 1, 2, 6, and 7 are unclaimed cavities. The features drawing in broken lines in FIGS. 4 and 5 are unclaimed strengthening ribs. The feature drawn in dash dot lines in FIG. 7 is an unclaimed helmet which forms no part of the claimed design. The features drawn in broken lines are for purposes of illustrating environmental structure associated with the claimed design in condition of use, and which forms no part of the claimed design.