The ornamental design for a spikepin for automobiletire, as shown and described.
FIG. 1 is a perspective view of a spike pin for an automobile tire showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a cross sectional view taken along lines 6-6 shown in FIG. 2; and,
FIG. 7 is a cross sectional view taken along lines 7-7 shown in FIG. 3.
The dash-dot-dashed styled broken lines in FIGS. 6 and 7 represent the internal portion of the spike pin and form no part of the claimed design. The even length broken lines depict environmental subject matter only and form no part of the claimed design. The dot and dashed lines represents a boundary between the claimed portion and the non-claimed portion.
A rear view appears to be identical to the front view and is omitted. A left side view appears to be identical to the right side view and is omitted. The thin lines shown in the views are for clarifying the shape of the three-dimensional surface.