Method of attaching heels to shoes

Details Method of attaching heels to shoes Method of attaching heels to shoes

1977-09-20

1978-12-05

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

29432, 227131, 227156, 264244, 264248, 264249, 264273, B29D 300, B29F 500

Patent

active

041286090

ABSTRACT:
A plastic heel is attached by inserting through an insole of a shoe a fastener, and vibrating the fastener at ultrasonic frequency to cause its shank to melt the plastic and become embedded in the heel. The fastener may be a staple with wide legs having holes therein. The shank of the shoe may be bridged by the staple for added attachment strength. Since less work penetration is needed than in nail-attaching of heels, advantage is gained especially in securing sharply tapering or so-called "stiletto" heels.

REFERENCES:
patent: 2261734 (1941-11-01), Ricks et al.
patent: 3184353 (1965-05-01), Balamuth et al.
patent: 3251146 (1966-05-01), Slosberg

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