Fabrication last for shoe manufacture on a computer-controlled t

Boot and shoe making – Forms – Lasts

Patent

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Details

12135R, A43D 300

Patent

active

050541471

ABSTRACT:
A fabrication last (10) for shoe manufacture on a computer-controlled transfer line comprises a toe part (11) and a heel part (12) which are displaceable relative to one another. The two last parts (11, 12) are held together by means of a lock (20). The latter comprises a flat metal part (21), which is fixed in one of the last parts (12) by means of screws (29), and an elongated hole (22) which extends between the two last parts (11, 12) substantially parallel to the sectional area (13). A stepped bore hole (14), in which a fork (23) is guided, is provided in the other last part (11). This fork (23) comprises a fork head (23.1) whose two sides overlap the flat metal part (21). A transverse pin (24) which engages through the elongated hole (22) and in this way holds together the two last parts (11, 12) is supported in the fork head (23.1). A two-piece receiving plate (30.1, 30.2) serves to fix the last (10) at the work stations of the transfer system. In order also to ensure a secure and permanent adjustment of the receiving plate (30.1, 30.2) in the last (10) comprising plastic, a bore hole (31.1, 31.2) is inserted in each instance into the last parts (11, 12) below and parallel to the receiving plate (30.1, 30.2). These bore holes (31.1, 31.2) comprise in each instance a metal part (32.1, 32.2) which is provided with threaded bore holes (34). The fastening screws (33.1, 33.2) of the receiving plate (30.1, 30.2) engage in these threaded bore holes (34).

REFERENCES:
patent: 851968 (1907-04-01), Turfant
patent: 909388 (1909-01-01), Fitz
patent: 1192257 (1916-07-01), Alley
patent: 1500106 (1924-07-01), Cavanagh
patent: 2037915 (1936-04-01), Messmer
patent: 2062557 (1936-12-01), Clark
patent: 2111512 (1938-03-01), Naceski
patent: 2684493 (1954-07-01), Clausing
patent: 2806233 (1957-09-01), Hubbard et al.
patent: 3076213 (1963-02-01), Makovski et al.
patent: 4286348 (1981-09-01), White, Sr.

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