IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0082389
(2002-02-25)
|
|
발명자
/ 주소 |
- Bielefeld, Eric
- Ferguson, Mark
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| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
13 인용 특허 :
20 |
초록
▼
A protective helmet includes: a shell, a headband with an absorbent brow pad, and a suspension. A key is secured to each end of each of the straps of the suspension for insertion into respective key sockets spaced about the periphery of the shell of the protective helmet along its lower edge. Of par
A protective helmet includes: a shell, a headband with an absorbent brow pad, and a suspension. A key is secured to each end of each of the straps of the suspension for insertion into respective key sockets spaced about the periphery of the shell of the protective helmet along its lower edge. Of particular importance to the protective helmet of the present invention, many (if not all) of the keys are molded directly to and around a strap, rather than sewn to the strap. In the method of the present invention, lengths of strap material are positioned in a mold, and plastic is injected into the mold cavity to encapsulate the straps and form the plastic component, e.g., a key for the suspension of the protective helmet. A trimming die is used to trim any webbing scrap between parts or other extraneous materials resulting from the molding of the plastic component to the straps.
대표청구항
▼
1. A protect helmet adapted to receive and protect a wearer's head, comprising: a substantially rigid shell shaped to protect the wearer's head, said shell defining a bottom opening and an internal cavity far receiving the wearer's head, and said shell including a plurality of integral sockets ne
1. A protect helmet adapted to receive and protect a wearer's head, comprising: a substantially rigid shell shaped to protect the wearer's head, said shell defining a bottom opening and an internal cavity far receiving the wearer's head, and said shell including a plurality of integral sockets near said bottom opening; a headband adjacent the bottom opening of said shell; and a suspension comprised of at least two straps intersecting one another within the internal cavity of said shell near an apex of said shell, a key being molded to and around each end of each strap, each key being adapted to be inserted into one of the integral sockets of said shell, and one or more of said keys being adapted for attachment to the headband, wherein said headband said suspension cooperate to separate the wearer's head from said shell by maintaining air gap between said shell and the wearer's head that provides for some attenuation of a force of an impact to said shell. 2. A protective helmet as recited in claim 1, wherein the suspension is comprised of two intersecting straps, said shell defining at least four integral sockets for receiving the four keys molded to around the ends of the respective straps. 3. A protective helmet as recited in claim 2, and further comprising a third strap intersecting said first and second straps and having a key secured to each end thereof, said shell also defining two additional integral sockets for receiving the keys secured to the ends of said third strap. 4. A protective helmet as recited in claim 1, wherein said straps extend from the bottoms of the respective keys, such that, when the protective helmet is worn, said straps are forced into a sharp U-turn toward the top of the shell of said protective helmet. 5. A protective helmet as recited in claim 1, in which the straps are nylon. 6. A protective helmet as recited in claim 1, in which the straps have a fluted surface texture. 7. A protective helmet as recited in claim 5, in which each strap has a width of approximately 0.75 inches. 8. A protective helmet as recited in claim 5, in which each strap has a thickness of approximately 0.015-0.030 inches. 9. A protective helmet as recited in claim 1, in which the keys are molded from a compound selected from the group consisting of: high density polyethylene (HOPE), nylon, low density polyethylene (LDPE), polypropylene, and acrylonitrile butadiene styrene (ABS). 10. A protective helmet as recited in claim 9, in which the keys are molded from high density polyethylene PE). 11. A protective helmet as recited in claim 1, in which said head band includes a plurality of upwardly extending appendages, each such appendage corresponding with and adapted for attachment to a respective key of said suspension. 12. A protective helmet as recited in claim 11, in which each key defines a substantially rectangular opening near the distal end thereof which is adapted to receive a T-shaped protrusion integral with an extending from a corresponding appendage of said head band.
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