Safety helmet with adjustment of the device for securing it on t

Details Safety helmet with adjustment of the device for securing it on t Safety helmet with adjustment of the device for securing it on t

1993-02-18

1994-12-20

Crowder, Clifford D.

Apparel

Guard or protector

For wearer's head

A42B 122

Patent

active

053735889

ABSTRACT:
A safety helmet with a crown comprises a head-band with a strip adjustable by means of a first mechanism with inverter pinion cooperating with a first crown-wheel and a second crown-wheel located at the two opposite ends of the strip. An operating ring is accessible from outside to perform adjustment with one hand when the helmet is on the user's head. The double crown-wheel is arranged on the side of the crown and enables perfect centering to be achieved regardless of the size of the head-band.
Application: potholing, mountaineering, construction sites, etc.

REFERENCES:
patent: 2205741 (1940-06-01), Bowers
patent: 2205742 (1940-06-01), Bowers
patent: 2926406 (1960-03-01), Edwards et al.
patent: 3137859 (1964-06-01), Zbikowski
patent: 3214809 (1965-11-01), Edwards
patent: 3329968 (1967-07-01), Gordon
patent: 3387304 (1968-06-01), Simpson et al.
patent: 3500474 (1970-03-01), Austin
patent: 4000520 (1977-01-01), Svendsen et al.
patent: 4263679 (1981-04-01), Erlendson
patent: 4292692 (1981-10-01), Moretti et al.
patent: 4888831 (1989-12-01), Oleson
patent: 4999846 (1991-03-01), Ball et al.

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