Attachment system for a helmet

In combination:

• a helmet;
• a stud connected to a part of the helmet and comprising an engaging portion;
• and
• a buckle comprising first and second slots for receiving a strap, an axis of the buckle extending from the first slot to the second slot, a length of the strap being adjustable relative to the buckle, the buckle comprising a rim defining a housing having an opening for receiving the engaging portion of the stud, the opening of the housing transversally to the axis of the buckle, the rim comprising a first material having a first rigidity and the engaging portion of the stud comprising a second material having a second rigidity, the first rigidity being less than the second rigidity, the rim being configured to allow sliding engagement with the engaging portion transversally to the axis of the buckle between a first position wherein a section of the rim retains the engaging portion of the stud in the housing for locking the buckle onto the stud and a second position wherein the engaging portion of the stud is no longer retained in the housing for releasing the buckle from the stud, wherein the section is configured to elastically deform for allowing sliding movement of the buckle between the first and second positions.

In combination:

• a helmet;
• a stud connected to a part of the helmet and comprising an engaging portion having a head and a groove located below the head, the head having a head diameter and a head thickness and the groove having a groove diameter and a groove thickness;
• and
• a buckle comprising first and second slots for receiving a strap, an axis of the buckle extending from the first slot to the second slot, a length of the strap being adjustable relative to the buckle, the buckle comprising a rim defining a housing having an opening for receiving the engaging portion of the stud, the opening of the housing extending transversally to the axis of the buckle, the rim comprising a biasing section with first and second restricting points being spaced apart of a distance taken along the axis of the buckle, the rim being configured to allow sliding engagement with the engaging portion of the stud transversally to the axis of the buckle between first and second positions, wherein, in the first position, the distance between the first and second restricting points is slightly smaller than the groove diameter such that the engaging portion of the stud is retained in the housing for locking the buckle onto the stud, and in the second position, the engaging portion of the stud is no longer retained in the housing for releasing the buckle from the stud.

A helmet for receiving a head of a wearer, the helmet comprising:

• a) an outer shell;
• b) padding disposed on an inner side of the outer shell for providing impact absorption;
• and
• c) an attachment system comprising a buckle and a buckle-retaining projection, the buckle being retainable onto the buckle-retaining projection without urging the buckle onto the buckle-retaining projection along a direction of projection of the buckle-retaining projection, the buckle being configured to slideably engage the buckle-retaining projection transversally to the direction of projection of the buckle-retaining projection to retain the buckle onto the buckle-retaining projection, the buckle having a section that is configured to elastically deform when the buckle-retaining projection is urged against it transversally to the direction of projection of the buckle-retaining projection.

A helmet for receiving a head of a wearer, the helmet comprising:

• a) an outer shell;
• b) padding disposed on an inner side of the outer shell for providing impact absorption;
• and
• c) an attachment system comprising a buckle and a buckle-retaining projection, the buckle receiving a strap along an axis of the buckle, the buckle being configured to allow sliding engagement with the buckle-retaining projection in a direction that is (i) generally tangential to an outer surface of the outer shell at a location where the buckle-retaining projection projects relative to the outer surface of the outer shell and (ii) transversal to the axis of the buckle, the buckle having a section that is configured to elastically deform when the buckle-retaining projection is urged against it transversally to the direction of projection of the buckle-retaining projection.