Helmet and method for manufacturing thereof

1. A helmet comprising a first protective layer, the first protective layer comprising at least one accessory mount portion for receiving an accessory mount, the at least one accessory mount portion being arranged integrally as a part of the first protective layer and configured to disintegrate from the rest of the first protective layer in response to a mechanical impact to the at least one accessory mount portion, wherein the first protective layer comprises at least one weakening portion configured to break in response to the mechanical impact to the at least one accessory mount portion for disintegrating the at least one accessory mount portion from the rest of the first protective layer, and wherein the at least one weakening portion comprises one of the following:

a groove configured to break in response to the mechanical impact to the at least one accessory mount portion for disintegrating the at least one accessory mount portion from the rest of the first protective layer, or

a perforation configured to break in response to the mechanical impact to the at least one accessory mount portion for disintegrating the at least one accessory mount portion from the rest of the first protective layer, or

a plurality of holes, at least one of the plurality of holes having a depth in the direction of the thickness of the first protective layer less than the thickness of the first protective layer, the plurality of holes configured to break in response to the mechanical impact to the at least one accessory mount portion for disintegrating the at least one accessory mount portion from the rest of the first protective layer.

2. The helmet according to claim 1 , wherein the accessory mount portion comprises an accessory mount base for receiving the accessory mount or an accessory.

3. The helmet according to claim 1 , wherein the accessory mount portion comprises an inner surface and an outer surface, wherein the inner surface faces an inside volume of the helmet and the outer surface facing outer side of the helmet, wherein the outer surface faces an opposite direction with respect to the inner surface, and wherein the outer surface is larger than the inner surface.

4. The helmet according to claim 1 , comprising at least one protective element arranged substantially in a corresponding position relative to the at least one accessory mount portion for preventing the at least one accessory mount portion from penetrating through the helmet.

5. The helmet according to claim 4 , comprising a volume between the at least one accessory mount portion and the corresponding protective element to provide space for the at least one accessory mount portion to move in response to the mechanical impact to the at least one accessory mount portion.

6. The helmet according to claim 1 , wherein the at least one accessory mount portion consists of material withstanding without breaking a lower mechanical impact to the at least one accessory mount portion with respect to the material of the first protective layer.

7. The helmet according to claim 1 , wherein the at least one weakening portion consists of material withstanding without breaking a lower mechanical impact to the at least one accessory mount portion with respect to the material of the first protective layer.

8. The helmet according to claim 1 , wherein the at least one weakening portion is arranged around the at least one accessory mount portion defining a portion of the first protective layer with an unsymmetrical shape for disintegrateing the at least one accessory mount portion in response to a lower mechanical impact from a first direction with respect to a mechanical impact from a second direction perpendicular to the first direction.

9. A method for manufacturing a helmet comprising:

obtaining a first protective layer, and

arranging at least one accessory mount portion integrally to the first protective layer by molding, such as by injection plastic molding, at least one weakening portion to the first protective layer, wherein the weakening portion is configured to disintegrate the at least one accessory mount portion from the rest of the first protective layer in response to a mechanical impact to the at least one accessory mount portion, and wherein the at least one weakening portion comprises one of the following:

a groove configured to break in response to the mechanical impact to the at least one accessory mount portion for disintegrating the at least one accessory mount portion from the rest of the first protective layer, or

a perforation configured to break in response to the mechanical impact to the at least one accessory mount portion for disintegrating the at least one accessory mount portion from the rest of the first protective layer, or

a plurality of holes, at least one of the plurality of holes having a depth in the direction of the thickness of the first protective layer less than the thickness of the first protective layer, the plurality of holes configured to break in response to the mechanical impact to the at least one accessory mount portion for disintegrating the at least one accessory mount portion from the rest of the first protective layer.

10. A helmet comprising a first protective layer, the first protective layer comprising at least one accessory mount portion for receiving an accessory mount, the at least one accessory mount portion being arranged integrally as a part of the first protective layer and configured to disintegrate from the rest of the first protective layer in response to a mechanical impact to the at least one accessory mount portion, wherein the accessory mount portion comprises an inner surface and an outer surface, wherein the inner surface faces an inside volume of the helmet and the outer surface facing outer side of the helmet, wherein the outer surface faces an opposite direction with respect to the inner surface, and wherein the outer surface is larger than the inner surface.

11. A helmet comprising a first protective layer, the first protective layer comprising at least one accessory mount portion for receiving an accessory mount, the at least one accessory mount portion being arranged integrally as a part of the first protective layer and configured to disintegrate from the rest of the first protective layer in response to a mechanical impact to the at least one accessory mount portion, wherein the helmet comprises at least one protective element arranged substantially in a corresponding position relative to the at least one accessory mount portion for preventing the at least one accessory mount portion from penetrating through the helmet, and a volume between the at least one accessory mount portion and the corresponding protective element to provide space for the at least one accessory mount portion to move in response to the mechanical impact to the at least one accessory mount portion.

12. A helmet comprising a first protective layer, the first protective layer comprising at least one accessory mount portion for receiving an accessory mount, the at least one accessory mount portion being arranged integrally as a part of the first protective layer and configured to disintegrate from the rest of the first protective layer in response to a mechanical impact to the at least one accessory mount portion, wherein the first protective layer comprises at least one weakening portion configured to break in response to the mechanical impact to the at least one accessory mount portion for disintegrating the at least one accessory mount portion from the rest of the first protective layer, and wherein the at least one weakening portion is arranged around the at least one accessory mount portion defining a portion of the first protective layer with an un symmetrical shape for disintegrating the at least one accessory mount portion in response to a lower mechanical impact from a first direction with respect to a mechanical impact from a second direction perpendicular to the first direction.