BRIEF DESCRIPTION OF THE DRAWING(S)
Further characteristics and advantages of the pedal crank of the present invention shall become clearer from the following description of some preferred embodiments thereof, made hereafter, for indicating and not limiting purposes, with reference to the attached drawings. In such drawings:
FIG. 1 is a perspective view partially in section of a left pedal crank according to the present invention;
FIG. 2 is a perspective view of a core for manufacturing the pedal crank of FIG. 1;
FIG. 3 is a perspective view that illustrates a preparation step of a preferred embodiment of an intermediate product for manufacturing the pedal crank of FIG. 1;
FIG. 4 is a perspective view of a preferred embodiment of an intermediate product for manufacturing the pedal crank of FIG. 1;
FIG. 5 is a cross section view along the line V-V of the intermediate product of FIG. 4;
FIG. 6 is a cross section view along the line VI-VI of the pedal crank of FIG. 1;
FIGS. 7 and 7
a are perspective views of alternative embodiments of the core of FIG. 2;
FIG. 8 is a perspective view of a core for manufacturing a right pedal crank according to the invention;
FIG. 8
a is a top view of a preferred embodiment of the core of FIG. 8;
FIG. 8
b is a view of a detail of the core of FIG. 8a;
FIG. 9 is a perspective view that illustrates a preparation step of a preferred embodiment of an intermediate product for manufacturing a right pedal crank according to the invention;
FIG. 10 is a longitudinal section view of a right pedal crank manufactured with the core of FIG. 8; and
FIG. 11 is a section view of a mold for manufacturing the pedal crank of FIG. 1, having the intermediate product of FIG. 4 in its cavity.
Patent Application
20070199403
