Air intake device in helmet

Details Air intake device in helmet Air intake device in helmet

1994-01-06

1995-02-14

Crowder, Clifford D.

Apparel

Guard or protector

For wearer's head

2424, 21713, A42B 108

Patent

active

053882776

ABSTRACT:
In an air intake device in a helmet, a recess is defined in a front wall of a shell of a cap body so as to be recessed inwardly of the shell, and has an opening defined in an upper surface of the recess to communicate with the inside of the cap body. A shutter plate is inserted into the opening for opening and closing the recess. A guide rod is projectingly disposed on a back surface of the shutter plate, so that it comes into sliding contact with an innermost wall of the recess and is slidably received in a guide hole provided in a lower wall of the recess. The shell of the cap body is provided with a function of a shutter housing, thereby eliminating the need for an exclusive shutter housing and simplifying the air intake device.

REFERENCES:
patent: 5093938 (1992-03-01), Kamata
patent: 5212843 (1993-05-01), Kamata

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