Apparel – Guard or protector – For wearer's head
Reexamination Certificate
2000-11-07
2001-10-23
Lindsey, Rodney M. (Department: 3765)
Apparel
Guard or protector
For wearer's head
Reexamination Certificate
active
06305030
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a crash helmet for sports. In particular, the present invention relates to a crash helmet which can be used by cyclists.
BACKGROUND ART
Conventional crash helmets for cyclists usually consist of a cap designed to be worn on the top of the head and having a plurality of holes designed to allow air to pass through the wearer's hair. Said air flow is intended to cool the top of the wearer's head, promoting the evaporation of sweat.
It has been noticed that, in the conventional crash helmets of this type, air flows through the hair at a relatively low speed and so does not always guarantee achievement of the above-mentioned arm.
Moreover, the presence of said plurality of holes in the surface of the cap means that the crash helmet does not have optimum aerodynamic characteristics, and so is not ideal for use in competitions.
U.S. Pat. No. 4,653,123 discloses A crash helmet for sports, comprising a supporting cap, being designed to be worn on the top of the head, and an outer cap, designed to fit on top of the supporting cap and be connected to the latter; said supporting cap having a plurality of first through holes in a surface substantially opposite an inner surface of the outer cap, and the outer cap having, at a zone being at the front when in use, at least one second hole for the entering of the air; the rear zones and each other opposed zones of the caps together defining at least one first passage for the exiting of the air at the rear zone of the crash helmet.
DISCLOSURE OF THE INVENTION
The aim of the present invention is, therefore, to overcome the above-mentioned disadvantages and provide a crash helmet for sports which, as well as being very strong and aerodynamic, guarantees optimum ventilation for the top of the wearer's head.
The idea on which the crash helmet disclosed by the present invention is based, as described in the claims herein, envisages the structure of the crash helmet consisting of a supporting cap, designed to be worn on the top of the head, and an outer cap, designed to be worn on top of the supporting cap and presently connected to the latter. To allow optimum ventilation for the crash helmet wearer's head, the supporting cap has a plurality of first through holes in hollows or channels in the outer surface of the supporting cap, facing the inner surface of the outer cap. The front of the outer cap has at least second through holes, each communicating with a relative channel in the supporting cap, and each also communicating with a relative first hole in the supporting cap. The rear zones of the supporting and outer caps together define, at the hollows or channels in the supporting cap, an equal number of matching passages which are open at a rear zone of the crash helmet, so that between the supporting and outer caps with said first and second holes and the channels in the supporting cap, there is a system of channels with Venturi effect, communicating with the internal environment defined by the supporting cap and, therefore, with the crash helmet wearer's head.
REFERENCES:
patent: 3925821 (1975-12-01), Lewicki
patent: 4555816 (1985-12-01), Broersma
patent: 4599752 (1986-07-01), Mitchell
patent: 4653123 (1987-03-01), Broersma
patent: 4903350 (1990-02-01), Gentes et al.
patent: 5272773 (1993-12-01), Kamata
patent: 5450631 (1995-09-01), Egger
patent: 5619756 (1997-04-01), Garneau
patent: 5833796 (1998-11-01), Matich
patent: 8525295.6 (1985-09-01), None
patent: 5-44102 (1993-02-01), None
patent: WO 91/05489 (1991-05-01), None
patent: WO 98/46095 (1998-10-01), None
Brico s.r.l.
Browdy and Neimark
Lindsey Rodney M.
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