US 12,279,664 B2
Protective helmet
Antonio Locatelli, Almenno San Salvatore (IT)
Assigned to Locatelli S.p.A., Almenno San Bartolomeo (IT)
Filed by Locatelli S.p.A., Almenno San Bartolomeo (IT)
Filed on Sep. 25, 2018, as Appl. No. 16/140,588.
Claims priority of application No. 102017000126486 (IT), filed on Nov. 7, 2017.
Prior Publication US 2019/0133233 A1, May 9, 2019
Int. Cl. A42B 3/06 (2006.01); A42B 3/12 (2006.01)
CPC A42B 3/063 (2013.01) [A42B 3/064 (2013.01); A42B 3/066 (2013.01); A42B 3/069 (2013.01); A42B 3/12 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A protective helmet, comprising:
an outer protective cap;
a first outer protective shell positioned inside and coupled to said outer protective cap;
a second inner protective shell positioned inside and coupled to said first outer protective shell; and
coupling means between said first outer protective shell and said second inner protective shell, said coupling means comprising a first damping means and a plurality of second mechanical retaining means, the coupling means spaced apart from each other and positioned in corresponding seats of said first outer protective shell and second inner protective shell;
said first damping means positioned at a top portion of the helmet and comprising at least one ring-shaped damping element made of elastomeric material, the at least one ring-shaped damping element defining a rotational axis through an open center of, and substantially orthogonal to a longitudinal axis of the at least one ring-shaped damping element, the at least one ring-shaped damping element fixed on a first side to the first outer protective shell and fixed on a second side to the second inner protective shell;
said plurality of second mechanical retaining means for allowing partial rotation or roto-translation of said second inner protective shell with respect to said first outer protective shell and further with respect to the rotational axis through the open center of the at least one ring-shaped damping element;
each of said plurality of second mechanical retaining means comprising a male element provided with snap-locking means positioned in a corresponding seat of one of said first outer protective shell or second inner protective shell and extending through the first outer protective shell and the second inner protective shell, and a female element suitable for engaging said snap-locking means of said male element and positioned in a corresponding seat of the other between said first outer protective shell or second inner protective shell;
the male element of each of the plurality of second mechanical retaining means defining a longitudinal axis, wherein the longitudinal axis of the male element of each of the plurality of second mechanical retaining means is substantially parallel to the rotational axis.