Apparel – Guard or protector – For wearer's head
Patent
1999-05-24
2000-11-28
Neas, Michael A.
Apparel
Guard or protector
For wearer's head
21713, 21845, 2DIG5, A42B 328
Patent
active
061517186
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a structure of a safety cap worn for protection of a head in construction works, engineering works, and other works.
BACKGROUND TECHNOLOGY
At various working sites or plants, a worker wears a safety cap on the worker's head for protection against a flying or dropping object or against injuries when the worker falls from a high portion. But if the safety cap is worn for a long time especially in summer or during a work with hard physical labor, the worker's head is heated with moisture by perspiration. As a result, it becomes uncomfortable to the worker, and in addition the work efficiency becomes lower.
To provide a safety cap with air ventilating ability, there has been disclosed a safety cap made from a net or a meshed and porous material formed into a multi-layered structure with void portions arranged alternately in Japanese Utility Model Laid-Open Publication No.143736/1985. Also the model described in Japanese Utility Model Laid-Open Publication No.7832/1983 has a feature to provide a safety cap with air ventilating ability, and further Japanese Utility Model Laid-Open Publication No.94430/1989 discloses an air ventilating device to be set inside a safety and protective tool, such as a working helmet, a vehicle helmet, safety shoes or the like.
However, these safety caps do not have a waterproof feature in rainy weather when worn outdoors.
Japanese Utility Model Publication No.20108/1967 discloses a helmet having air ventilating ability and a waterproof feature in rainy weather, but in this model, small holes are provided in a side section of a cap body, so that a flying or dropping object may come into an inside of the cap body through the hole and also the strength is not sufficient, and for the reasons the model can not achieve the essential object of a helmet to protect a wearer's head. Further, when a worker wearing the cap works in a slouching posture, rain water comes into the helmet, so that the helmet can not be worn in rainy weather.
Before, the inventor of the present invention proposed a safety cap comprising a dual structural cap body as a safety cap having air ventilating ability and waterproofness in International Publication No. W095/28101. However, the safety cap can not avoid the increase of weight as a result of the dual structure.
DISCLOSURE OF THE INVENTION
It is an object of the present invention to provide a safety cap which is lightweight and excellent in air ventilating ability and waterproofness in rainy weather or the like.
The safety cap according to the present invention comprises an air hole penetrating inner and outer walls of a cap body, a drainage channel provided along the inner wall of the cap body for discharging water coming into an inside of the cap body through the air hole to an outside of the cap body, and a vent hole in an upper side of the drainage channel perpendicular to the drainage direction. Preferably, a drainage hole of the drainage channel is opened in an outer surface of the cap body. Further preferably the shape of a cross section of the drainage channel perpendicular to the drainage direction is U-shaped.
Also, the safety cap according to the present invention comprises a drainage groove formed in the outer surface of a cap body and having a plurality of vent holes formed in the side walls thereof, wherein the drainage groove is covered with a cover body having air holes and also an edge section of the drainage channel groove is opened to outside of the cap body as a drainage hole. Preferably, the vent holes in the side walls and the air holes in the cover body are provided so that the holes do not overlap at the location of the drainage direction.
Also, the safety cap according to the present invention is provided with a recessed portion on a surface of the cap body, wherein the recessed portion has vent holes respectively penetrating the inner and outer walls thereof, and the recessed portion is covered with a cover body having air holes and drainage holes provided at positions where
REFERENCES:
patent: 1170052 (1916-02-01), Diener et al.
patent: 1991829 (1935-02-01), Uriwal
patent: 3026522 (1962-03-01), Di Julio
patent: 5533500 (1996-07-01), Her-Mou
patent: 5819318 (1998-10-01), Tse
patent: 5937446 (1999-08-01), Fallert
patent: 5940889 (1999-08-01), Shirai
Builmatel Co., Ltd.
Neas Michael A.
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