Helmet

Claim 2

A helmet comprising: an outer shell a one-piece integral interior element fitted within said shell, said interior element including a front portion, a rear portion, and a top portion, a first space is provided in said interior element for receiving the head of a user, a second space is provided at the front portion of said interior element by a top step and two sides steps in said interior element, a third space is provided at the rear potion of said interior element, said second space and said third space being open respectively to the atmosphere and positioned outwardly from the head outlined of said user, an airpath is provided in said interior element and extends from said second space of said front portion to said third space of said interior element, and the width of said second space is wider than the width of said airpath, whereby front hair of a person wearing the helmet is not disheveled because there is less pressing and less steaming of the front hair.

Claim 3

A helmet according to claim 1, wherein said airpath is at least one groove extending from said front portion of said interior element to said rear potion of said interior element.

Claim 4

A helmet according to claim 1, wherein a mesh type cloth is provided on an interior wall of said interior element adjacent said second space and said third space, whereby the circulation of air in this area is improved.

Claim 5

A helmet according to claim 1, wherein pads are located within said interior element and extend beyond an interior surface of said interior element so that said surface of said interior element is covered and soft contact is provided with the user's head.

Claim 6

A helmet according to claim 1, wherein said top step is located at a maximum thickness of said interior element so that space can be as large as possible.

Claim 7

A helmet according to claim 1, wherein said airpath is two grooves, with one of said grooves being located at each side of said interior element.

Claim 8

A helmet according to claim 2, wherein said groove opens to the atmosphere in said rear potion of said interior element in a location where helmet width is decreasing so that there will be a positive pulling of air rearwardly because of the generation of a vacuum.

Claim 9

A helmet according to claim 2, wherein said groove has a greatest depth located at said top step in said interior element.

Claim 10

A helmet according to claim 1, wherein a mesh type cloth is provided on at least a portion of said interior element.

Claim 11

A helmet according to claim 1, wherein pads are provided on right and left side walls of said interior element along the head outline and said second space is located between right and left front edges of said pads.

Claim 12

A helmet according to claim 1, wherein said interior element is thinner adjacent said second space than adjacent said first space.

Claim 13

A helmet according to claim 1, wherein said second space between said interior element and said head outline is widest at its lowermost extent.

Claim 14

A helmet according to claim 1, wherein said interior element has side walls and the said interior element is thinner adjacent said second space than at said side walls.

Claim 15

A helmet according to claim 1, wherein said airpath is tapered rearwardly and spaced from a center line of said interior element.

Claim 16

A helmet comprising an outer shell an interior element including a front portion, a rear portion and a top portion, a first space is provided in said interior element for receiving the head of a user, a second space is provided at the front portion of said interior element, a third space is provided a the rear portion of said interior element, said second space and said third space being open respectively to the atmosphere and positioned outwardly from the head outline of said user, an airpath is provided in said interior element and extends from said second space of said front potion to said third space of said interior element, the width of said second space is wider than the width of said airpath, and wherein a line formed in a cross-sectional view, at a step portion located at a side of said interior element inclines outwardly relative to a vertical line, whereby a stable support of the helmet on a user's head is provided.

Claim 17

A helmet comprising an outer shell an interior element including a front portion, a rear portion and a top portion, a first space is provided in said interior element for receiving the head of a user, a second space is provided at the front portion of said interior element, a third space is provided a the rear portion of said interior element, said second space and said third space being open respectively to the atmosphere and positioned outwardly from the head outline of said user, an airpath is provided in said interior element and extends from said second space of said front potion to said third space of said interior element, the width of said second space is wider than the width of said airpath, and wherein a line formed in a cross-sectional view, at a step portion located at a side of said interior element inclines outwardly relative to a vertical line, whereby a stable support of the helmet on a user's head is provided.

Claim 18

A helmet comprising an outer shell an interior element fitted within said shell, said interior element including a front portion, a rear potion, and a top portion, a first space is provided in said interior element for receiving the head of a user, a second space is provided at the front portion of said interior element, a third space is provided at the rear portion of said interior element, said second space and said third space being open respectively to the atmosphere and positioned outwardly from the head outline of said user, an airpath is provided in said interior element and extends from said second space of said front portion to said third space of said interior element, the width of said second space is wider than the width of said airpath, and wherein the ratio of the maximum space width to the maximum interior width of said interior element is about 100/179 to 120/179 since this ratio provides both a stable support of the helmet and less disheveled hair.

Claim 19

A helmet comprising an outer shell an interior element fitted within said shell, said interior element including a front portion, a rear potion, and a top portion, a first space is provided in said interior element for receiving the head of a user, a second space is provided at the front portion of said interior element, a third space is provided at the rear portion of said interior element, said second space and said third space being open respectively to the atmosphere and positioned outwardly from the head outline of said user, an airpath is provided in said interior element and extends from said second space of said front portion to said third space of said interior element, the width of said second space is wider than the width of said airpath, and wherein the ratio of the maximum space width to the maximum interior width of said interior element is about 100/179 to 120/179 since this ratio provides both a stable support of the helmet and less disheveled hair.

Claim 20

A helmet comprising: an outer shell a one-piece integral interior element fitted within said shell, said interior element including a front portion, a rear portion, and a top portion, a first space is provided in said interior element for receiving the head of a user, a second space is provided at the front portion of said interior element by a top step and two side steps in said interior element, said second space being open to the atmosphere and positioned outwardly from the head outline of said user, an airpath is provided in said interior element and extends from said second space of said rear portion of said interior element, and the width of said second space is wider then the width of said airpath, whereby front hair of a person wearing the helmet is not disheveled because there is less pressing and less streaming of the front hair.

Claim 21

A helmet comprising: an outer shell a one-piece integral interior element fitted within said shell, said interior element including a front portion, a rear portion, and a top portion, a first space is provided in said interior element for receiving the head of a user, a second space is provided at the front portion of said interior element by a top step and two side steps in said interior element, said second space being open to the atmosphere and positioned outwardly from the head outline of said user, an airpath is provided in said interior element and extends from said second space of said rear portion of said interior element, and the width of said second space is wider then the width of said airpath, whereby front hair of a person wearing the helmet is not disheveled because there is less pressing and less streaming of the front hair.