(57) A shoe stitching machine includes a needle (7), which passes through the edges to
be stitched arranged vertically and positioned one with respect to the other by a
longitudinal guide (10). The longitudinal guide (10) includes a main body (30) forming
a vertical support surface (33), arranged on a where the needle (7) enters said edges
being stitched, and stop means (40) removably fastened to said main body (30) and
adjustable in height with respect thereto. The stop means (40) define an upper abutment
for the edge of the insole (1) carried by the support surface (33) and for the edge
(3a) of the upper (3), situated beside the edge of the insole (1), on the side where
the needle (7) enters the edge of the upper. A separating baffle (70), joined to the
longitudinal guide (10), when in its working position (O), is introduced between the
edges to be stitched in the part corresponding to the working area of a wrinkling
head (66), carried by a respective wrinkling group and acting on the edge (3a) of
the upper (3). The stop means (40) are of two types, one for IDEAL stitching method,
including a prong (41), and the other, for S. CRISPINO stitching method, including
a pair of teeth (51,52). The two types of stop means are mounted alternately to the
machine according to the required stitching method, in both cases the knotted stitching
is obtained using medium and thick threads.
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