| 摘要 |
<p>In a film cassette (1), a spool (5) is supported for rotation in an unwinding direction inside a cassette shell (3), a filmstrip (F) is coiled about the spool to form a roll with an outermost film convolution that is a non-protruding leader (35), and a stripper (68) is located substantially adjacent a passageway to the exterior of the shell for receipt between a leading edge (63) of the leader and a next-inward film convolution (39) of the roll to divert the leading edge into the passageway when the spool is rotated in the unwinding direction. According to the invention, the leading edge (63) of the leader (35) is inclined at one angle rearwardly from its center point (63') on a longitudinal centerline of the filmstrip (F) towards one longitudinal edge of the filmstrip relatively remote from the stripper (68) and is inclined at another angle forwardly from the centerpoint towards another longitudinal edge of the filmstrip relatively close to the stripper. This arrangement facilitates advancement of the leading edge into and through the passageway (25). <IMAGE></p> |
