초록 ▼

A helmet (1, 100, 200) for protecting a user's head (90), comprising a cap (2) for protecting the user's cranium (92) and a chin guard (3) for protecting the user's chin (93), wherein the chin guard (3) is adapted to move between a first protecting position (31) and a second protecting position (32)

A helmet (1, 100, 200) for protecting a user's head (90), comprising a cap (2) for protecting the user's cranium (92) and a chin guard (3) for protecting the user's chin (93), wherein the chin guard (3) is adapted to move between a first protecting position (31) and a second protecting position (32) under the action of a force (50) acting in the direction of the chin (93) of a user wearing on said helmet (1), the chin guard (3) in said second protecting position (32) being nearer to the user's chin (93) with respect to the chin guard (3) in said first protecting position (31).

대표청구항 ▼

1. A helmet for protecting a user's head, comprising a cap for protecting the user's cranium comprising a cap side area distinct from a cap back area anda chin guard for protecting the user's chin comprising a chin guard front area distinct from a chin guard side area,wherein the cap comprises at le

1. A helmet for protecting a user's head, comprising a cap for protecting the user's cranium comprising a cap side area distinct from a cap back area anda chin guard for protecting the user's chin comprising a chin guard front area distinct from a chin guard side area,wherein the cap comprises at least one bottom portion positioned, in operation, at the rear of the user's cranium and/or user's nape, and substantially opposite to the chin guard,wherein the chin guard is adapted to move with respect to the cap between a first protecting position and a second protecting position under action of a force acting on the chin guard and having at least one component directed toward said bottom portion of the cap,wherein the chin guard in said second protecting position is at least partially displaced, nearing said bottom portion of the cap with respect to said first protecting position so as to be nearer to the user's chin during operation, andwherein the helmet further comprises a damper member cooperating with the chin guard during motion between the first protecting position and the second protecting position, the damper member being an insert made of a material selected from a plastically deformable material, a honeycomb material or a bellows shaped material, the insert being located on a side of the helmet, substantially all between the chin guard side area and the cap side area, the insert being configured to be subjected to a compressive action during the motion of the chin guard between the first protecting position and the second protecting position. 2. The helmet according to claim 1, wherein said chin guard comprises a substantially C-shaped shell, with a central portion and two side wings, wherein said side wings embrace corresponding side portions of the cap, and wherein said insert located on a side of the helmet is included between a respective side wing and the corresponding side portion of the cap. 3. The helmet according to claim 1, further comprising pivot means pivotable about a determined axis for connecting the chin guard to said cap, said motion between the first protecting position and the second protecting position being an angular displacement about said axis. 4. The helmet according to claim 3, wherein said pivot means is arranged substantially at temporal regions of the cap, said axis passing through both said temporal regions. 5. The helmet according to claim 3, further comprising at least one substantially L-shaped connecting arm connecting said chin guard to said cap, said arm having a first section integrally connected with the chin guard and a second section pivoted on the cap via said pivot means. 6. The helmet according to claim 3, further comprising a visor pivoted to said cap at said axis. 7. The helmet according to claim 1, further comprising guide means associated with said cap and counter-guide means associated with said chin guard, said guide means being adapted to cooperate with said counter-guide means to guide the motion of the chin guard between the first protecting position and the second protecting position. 8. The helmet according to claim 7, wherein said guide and counter-guide means are linear, such that said motion of the chin guard is a translation motion. 9. The helmet according to claim 7, wherein said guide means comprises rails and said counter-guide means comprises teeth adapted to engage said rails. 10. The helmet according to claim 1, wherein said chin guard comprises a substantially C-shaped shell, with a central portion and two side wings,wherein each of said side wings is associated with a corresponding side portion of the cap at a side of the helmet,wherein each of said side wings is connected to a respective side portion of the cap by at least two connecting rods and each of said connecting rods is pivoted on said side wing of the chin guard at a first axis of rotation and is pivoted on the respective side portion of the cap at a second axis of rotation, such that, at each side of the helmet, said connecting rods, said side wing of the chin guard, and said side portion of the cap form an articulated quadrilateral. 11. The helmet according to claim 10, wherein a plane containing said first axis and said second axis of rotation of a first connecting rod and a plane containing said first axis and said second axis of rotation of a second connecting rod converge into a region beyond said cap in a direction opposite to said chin guard. 12. The helmet according to claim 1, further comprising constraint means interposed between the chin guard and the cap for holding the chin guard in said first protecting position, wherein said constraint means can be deactivated, when said force exceeds a threshold value, to allow motion of the chin guard to the second protecting position. 13. The helmet according to claim 12, wherein said constraint means comprises at least one gauged-breaking element. 14. The helmet according to claim 1, further comprising an end-of-stroke member associated to the cap adapted to limit the displacement of the chin guard, keeping the chin guard in said second protecting position. 15. The helmet according to claim 1, wherein the chin guard internally comprises a recess having an arc-shaped transversal contour, adapted to cause, during operation, the user's chin not to be in contact with the chin guard in said second protecting position. 16. The helmet according to claim 1, wherein said chin guard comprises a substantially C-shaped shell having a central portion and two side wings, each side wing embracing a respective side portion of the cap, wherein the insert located on a side of the helmet is housed in a seat made on a respective side portion of the cap, the insert being projecting externally from a surface of the cap, an edge of a respective side wing being configured to exert said compressive action on the insert during the motion of the chin guard between the first protecting position and the second protecting position. 17. The helmet according to claim 1, wherein said chin guard comprises a substantially C-shaped shell having a central portion and two side wings, each side wing embracing a respective side portion of the cap, wherein the insert located on a side of the helmet is included between a respective side portion of the cap and a respective side wing which covers the insert, the insert being positioned between an internal surface of the respective side wing and an external surface of the respective side portion of the cap, wherein the internal surface of the respective side wing comprises a raised contour or shoulder which abuts against the insert, the raised contour or shoulder being configured to exert said compressive action on the insert during the motion of the chin guard between the first protecting position and the second protecting position.