System for controlling the opening and closing of shield plate o

Details System for controlling the opening and closing of shield plate o System for controlling the opening and closing of shield plate o

1991-05-23

1992-11-24

Nerbun, Peter

Apparel

Guard or protector

For wearer's head

A42B 302

Patent

active

051651173

ABSTRACT:
An elongated hole is provided in a shield plate to extend in a direction to open and close the shield plate, and a stopper pin is fixedly mounted on a cap body and adapted to be fitted into the elongated hole, so that the shield plate is restrained from opening more than a predetermined opening degree by abutment of the stopper pin against one end wall of the elongated hole. In addition, a cam member is mounted on the cap body for pushing up an end edge of the shield plate to permit the slipping of the stopper pin out of the elongated hole. These ensure that the shield plate can be restrained to a position corresponding to the predetermined opening degree, thereby preventing any clouding of an inner surface of the shield plate, while preventing the opening of the shield plate by a wind pressure.

REFERENCES:
patent: 4581775 (1986-04-01), Nava
patent: 4748696 (1988-06-01), Fohl
patent: 4807305 (1989-02-01), Sundahl
patent: 5073990 (1991-12-01), Kamata

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