Boot and shoe making – Lasting machines – Wiper folder
Patent
1990-02-07
1991-03-19
Meyers, Steven N.
Boot and shoe making
Lasting machines
Wiper folder
12 131, A43D 2114, A43D 7500
Patent
active
049998706
ABSTRACT:
A shoe ribbing machine of the present invention is particularly adapted to drive tacks into the insole of a shoe at a predetermined spacing through a ribbing disposed over the edge of the insole. The shoe ribbing machine includes a last over which a shoe upper including the insole can be fitted, a tack driving device confronting the last for driving tacks one after another into the insole of a shoe supported on the last, and a drive connected to one of the last and the tack driving device for moving the last and the tack driving device relative to one another. A measuring and pulse generating device is provided to detect the amount of relative movement between the last and the tack driving device. The measuring and pulse generating device issues pulses based on the detection of relative movement to control the rate at which the tack driving device drives tacks one after another as a function of the amount of relative movement between the last and the tack driving device. In this way, a constant spacing can be provided between the driven-in tacks irrespective of the speed at which the last and the tack driving device are moved relative to one another.
REFERENCES:
patent: 2660740 (1953-12-01), Robinson
patent: 4602398 (1986-07-01), Giebel
patent: 4630325 (1986-12-01), Bender et al.
patent: 4853997 (1989-08-01), Giebel
Meyers Steven N.
Schon & CIE. GmbH
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