Device for footwear upper assembling on respective lasts or shoe

Details Device for footwear upper assembling on respective lasts or shoe Device for footwear upper assembling on respective lasts or shoe

1977-10-20

1980-06-24

Lawson, Patrick D.

Boot and shoe making

Lasting machines

Nipper stretcher

A43D 2100

Patent

active

042087511

ABSTRACT:
The device according to the invention employs a known clamping assembly to clamp the upper edge to stretch and fold up the edge against the sole. Complementary clamping clips hold the upper edge at the last or to a shoe tree hollow. Also present is a right set and left set of members for upper edge adherence at the last or shoe tree hollow. The aforementioned members are divided into two or more sections independently oscillating about axes approximately parallel to the direction of approaching movement to the last or shoe tree, and independently oscillating about an axis which is approximately horizontal and perpendicular to said direction. The oscillation being controlled by motors that are independent for each individual section. Moreover, each of the right and left sets, is adjustable in height and orientable about an axis parallel to the last or shoe tree approach direction.

REFERENCES:
patent: 3168752 (1965-02-01), Quarmby
patent: 3222703 (1965-12-01), Broughton et al.
patent: 3258799 (1966-07-01), Weinschenk

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