EP1101419B1 - Crash-helmet for motorcyclists - Google Patents
Crash-helmet for motorcyclists Download PDFInfo
- Publication number
- EP1101419B1 EP1101419B1 EP19990830711 EP99830711A EP1101419B1 EP 1101419 B1 EP1101419 B1 EP 1101419B1 EP 19990830711 EP19990830711 EP 19990830711 EP 99830711 A EP99830711 A EP 99830711A EP 1101419 B1 EP1101419 B1 EP 1101419B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guard
- mouth
- visor
- helmet
- crash
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/32—Collapsible helmets; Helmets made of separable parts ; Helmets with movable parts, e.g. adjustable
- A42B3/326—Helmets with movable or separable chin or jaw guard
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/04—Parts, details or accessories of helmets
- A42B3/18—Face protection devices
- A42B3/22—Visors
- A42B3/221—Attaching visors to helmet shells, e.g. on motorcycle helmets
- A42B3/222—Attaching visors to helmet shells, e.g. on motorcycle helmets in an articulated manner, e.g. hinge devices
Definitions
- the present invention relates to a crash-helmet for motorcyclists.
- a crash-helmet comprising a shell, a visor and a mouth-guard.
- the visor is pivotally mounted on the shell and is able to rotate between a lowered (closed) position and a raised (open) position.
- the mouth-guard is also pivotally mounted on the shell and is able to rotate between a lowered (closed) position and a raised (swung-back) position.
- the mouth-guard and the visor have a common axis of rotation and travel along circular trajectories having either the same radius or different radii.
- the movement of the visor depends on that of the mouth-guard and therefore it is not possible to lower the visor while keeping the mouth-guard raised.
- the movements of the mouth-guard and the visor are independent, but between mouth-guard and visor there remains a slit which requires the use of seals. With the passing of time, these seals deteriorate, resulting in the infiltration of air and water.
- the present invention relates to a crash-helmet for motorcyclists, comprising a shell, a visor and a mouth-guard, said visor and said mouth-guard being rotatably supported on said shell so as to rotate about respective rotational pins having axes which are suitably spaced apart, said visor and mouth-guard travelling along circular trajectories which intersect so as to superimpose a bottom edge of said visor and a top edge of said mouth-guard in a position where both are simultaneously lowered, characterized in that said visor is provided with first engagement means and said mouth-guard is provided with second engagement means, said first and second engagement means being designed to co-operate, over a predetermined circumference arc of said circular trajectories, so that said mouth-guard causes partial raising of said visor when said mouth-guard is lowered.
- said first engagement means are formed by at least. one relief integral with said visor and said second engagement means are formed by at least one projection integral with said mouth-guard.
- said relief is positioned on said visor so as to be situated at a predetermined distance from said axis of said rotation pin of said mouth-guard along said predetermined circumference arc, said predetermined distance being approximately equal to the distance at which the furthest portion of said projection is situated from the axis of said pin for rotation of said mouth-guard such that said portion of said projection is in contact with said relief along said circumference arc.
- said relief on said visor has a curved shape.
- said relief on said visor has a substantially rectilinear shape.
- said projection on said mouth-guard has an oblong shape.
- said projection on said mouth-guard has a circular shape.
- said mouth-guard has a top edge on which a bottom edge of said visor rests.
- said mouth-guard also has an edge substantially perpendicular to said top edge and designed to improve the seal in the zone where said visor and said mouth-guard are joined together.
- the helmet according to the invention When the helmet according to the invention is worn by a motorcyclist with the visor lowered and the mouth-guard raised, in order to lower the mouth-guard it is sufficient for the motorcyclist to rotate it downwards.
- the mouth-guard during the lowering operation, causes partial raising of the visor, by means of the cooperation of the first and second engagement means, thus preventing the visor from interfering with the mouth-guard and hindering complete lowering thereof.
- lowering of the mouth-guard is so simple, rapid and safe that it can also be performed by the rider using only one hand while the motorcycle is moving.
- Figs. 1-9 show a left-hand side view, in the condition when worn, of a crash-helmet 1 for motorcyclists.
- the right-hand side view of the helmet 1 is a mirror-image.
- the helmet 1 comprises a jet-type (or "open-face") shell 2, a visor 3 and a mouth-guard 4.
- the shell 2 is provided with an internal padding, not shown.
- the visor 3 is rotatably supported on the shell 2 by means of two opposite rotational pins 5 which are located respectively on the left-hand side and on the right-hand side of the shell 2.
- Fig. 9 shows, in broken lines, the circular trajectory 8 of a point 17 situated on a bottom edge 7 of the visor 3.
- the circular trajectory 8 has its centre on the axis of the rotational pin 5 and has, for example, a radius of about 182 mm.
- the visor 3 has, integral with it, two reliefs 6 which have a curved shape and are located respectively on its left-hand and right-hand outer sides (Fig. 10) and the function of which will be illustrated further below.
- the mouth-guard 4 is rotatably supported on the shell 2 by means of two opposite rotational pins 10 which are located respectively on the left-hand side and on the right-hand side of the shell 2.
- Fig. 9 shows, in the form of a dot-dash line, the circular trajectory 15 of a point 14 situated on a top edge 13 of the mouth-guard 4.
- the circular trajectory 15 is concentric with the axis of the pin 10 and has, for example, a radius of about 168 mm.
- the circular trajectory 8 of the point 17 of the visor and the trajectory 15 of the point 14 of the mouth-guard intersect at two points A and B, which are spaced at an angle of about 53° (Fig. 9).
- the axis of the pin 5 of the visor 3 is located at a predetermined distance from the axis of the pin 10 of the mouth-guard 4.
- the distance between the centers of the two pins 10 and 5 is about 16 mm.
- the bottom edge 7 of the visor 3 rests on the top edge 13 of the mouth-guard 4 when visor and mouth-guard are completely lowered in the closed position (defined by the points C and D of the trajectories 8 and 15 in Fig. 9).
- a stop means designed to retain firmly, also during ride at high speed, the mouth-guard 4 in the completely lowered position is not shown.
- the profiles of the visor 3 and the mouth-guard 4 are substantially flush.
- the mouth-guard 4 also has an edge 25 which is substantially perpendicular to the edge 13 and which serves to improve the seal in the zone where visor and mouth-guard are joined together.
- the mouth-guard 4 has, integral with it, two projections 11 which are oblong-shaped and located respectively on its left-hand and right-hand inner sides (Fig. 10) and the function of which will be illustrated further below.
- Each projection 11 extends radially with respect to the rotational pin 10. Its portion closest to the axis of the pin 10 is indicated by 27, while its portion furthest away from the axis of the pin 10 is indicated by 12. For example, the point of the portion 12 which is furthest away from the axis of the pin 10 is situated at a maximum distance of about 13 mm.
- Each curved relief 6 is positioned on the visor 3 so that its edge 26 is situated at a predetermined distance from the axis of the pin 10 along a predetermined circumference arc of the circular trajectories 8 and 15.
- the value of this predetermined distance is chosen so that the portion 12 of the oblong projection 11 comes into contact with the edge 26 of the curved relief 6 along said circumference arc, as will be illustrated further below.
- this predetermined distance is approximately equal to the distance at which the furthest point of the portion 12 of the projection 11 is situated with respect to the axis of the pin 10.
- said predetermined distance is about 13 mm.
- a disc 20 provided with a curved slot 21 concentric with the pin 5 is fastened to the shell 2 (Figs. 10 and 11).
- a stud 22 integral with the visor 3 engages with the curved slot 21.
- the slot 21 has two end sides 23 and 24 which act as a stop for rotation of the visor 3 between a completely lowered, closed, position (Fig. 1) and a completely raised, open, position (Fig. 6).
- the arc of rotation of the visor 3 subtends an angle of about 50°.
- the visor 3 and the mouth-guard 4 may assume both the completely lowered, closed, position (Figs. 1 and 9) and may be raised independently of one another, causing them to rotate in a clockwise direction about the respective pin 5 or 10.
- the mouth-guard 4 When the mouth-guard 4 is raised, initially, over a small circumference arc, which subtends an angle of about 17°, it draws with it the visor 3 and raises it slightly until its edge 13 is separated from the edge 7 of the visor (Fig. 2 and point A of Fig. 9). Then the mouth-guard 4 continues its raising movement, moving outside the visor 3 (Figs. 3 and 4), and continues to rotate in a clockwise direction over an angle of about 240° until it reaches the completely open position (Fig. 5). The mouth-guard 4 is kept in the completely raised position, where it is swung back, by the edge 13 which rests on the shell 2 and acts as a stop.
- the mouth-guard 4 rotates independently of the visor 3 also during the first part of its raising movement (Figs. 3 and 4) because the portion 12 of each projection 11 remains slightly spaced from the relief 6 on the visor or rather from an edge 26 of the relief 6 directed towards the pin 10.
- the edge 26 of each relief 6 is located at a distance from the axis of the pin 10 of the mouth-guard which is slightly greater than the abovementioned predetermined distance (about 13 mm) at which the portion 12 of the projection 11 comes into contact with the edge 26 of the relief 6.
- the visor 3 is able to rotate independently of the mouth-guard 4. It may be raised so as to be completely open, by causing it to rotate through an angle of about 50° about the pin 5 up to the upper stop (Fig. 6) or may be lowered completely (Fig. 7), while the mouth-guard 4 remains completely raised.
- Fig. 12 shows a variation of the helmet 1, in which a relief 36 with a substantially rectilinear shape is integral with the visor 3 and a projection 111 with a circular shape is integral with the mouth-guard 4.
- the projection 111 has a portion 112 which is located at a predetermined maximum distance from the axis of the pin 10.
- the relief 36 and the projection 111 operate in a manner similar to the relief 6 and to the projection 11 described further above.
- the portion 112 of the projection 111 comes into contact with an edge 46 of the relief 36, when the distance between the edge 36 and the axis of the pin 10 becomes practically equal to the distance between the portion 112 and the axis of the pin 10. And this occurs along the abovementioned circumference arc which is located on either side of the point B (Fig. 9).
- the shell 2 and the mouth-guard 4 are made, for example, of polycarbonate or a composite material and the visor 3 is made of polycarbonate.
- said material is also subjected to an anti-scratch treatment.
Description
- Fig. 1 is a left-hand side view, in the condition when worn, of a crash-helmet with a visor and a mouth-guard according to the invention;
- Figs. 2-8 show different positions assumed by the visor and the mouth-guard of the helmet of Fig. 1;
- Fig. 9 is a view, on a smaller scale, of the helmet of Fig. 1, in which circular trajectories of the visor and the mouth-guard are shown;
- Fig. 10 is a partial cross-sectional view taken along the plane X-X of Fig. 1;
- Fig. 11 is a partial cross-sectional view taken along the plane XI-XI of Fig. 10;
- Fig. 12 shows a variation of engagement means of the helmet of Figs. 1-11.
Claims (9)
- Crash-helmet (1) for motorcyclists, comprising a shell (2), a visor (3) and a mouth-guard (4), said visor (3) and said mouth-guard (4) being rotatably supported on said shell (2) so as to rotate about respective rotational pins (5, 10) having axes which are suitably spaced apart, said visor (3) and mouth-guard (4) travelling along circular trajectories (8, 15) which intersect (A,B) for superimposing a bottom edge (7) of said visor (3) and a top edge (13) of said mouth-guard (4) in a position where both are simultaneously lowered, characterized in that said visor (3) is provided with first engagement means (6; 36) and said mouth-guard (4) is provided with second engagement means (11; 111), said first and second engagement means (6; 36, 11; 111) being designed to co-operate, over a predetermined circumference arc of said circular trajectories (8, 15), so that said mouth-guard (4) causes partial raising of said visor (3) when said mouth-guard (4) is lowered.
- Crash-helmet (1) according to Claim 1, characterized in that said first engagement means (6; 36) are formed by at least one relief (6; 36) integral with said visor (3) and said second engagement means (11; 111) are formed by at least one projection (11; 111) integral with said mouth-guard (4).
- Crash-helmet (1) according to Claim 2, characterized in that said relief (6; 36) is positioned on said visor (3) so as to be at a predetermined distance from said axis of said rotation pin (10) of said mouth-guard (4) along said predetermined circumference arc, said predetermined distance being approximately equal to the distance at which the furthest portion (12; 112) of said projection (11; 111) is located from the axis of said pin (10) for rotation of said mouth-guard (4) such that said portion (12; 112) of said projection (11; 111 ) is in contact with said relief (6; 36) along said circumference arc.
- Crash-helmet (1) according to Claim 2, characterized in that said relief (6) on said visor (3) has a curved shape.
- Crash-helmet (1) according to Claim 2, characterized in that said relief (36) on said visor (3) has a substantially rectilinear shape.
- Crash-helmet (1) according to Claims 2 and 4, characterized in that said projection (11) on said mouth-guard (4) has an oblong shape.
- Crash-helmet (1 ) according to Claims 2 and 5, characterized in that said projection (111) on said mouth-guard (4) has a circular shape.
- Crash-helmet (1) according to Claim 1, characterized in that said mouth-guard (4) has a top edge (13) on which a bottom edge (7) of said visor (3) rests.
- Crash-helmet (1) according to Claim 8, characterized in that said mouth-guard (4) also has an edge (25) substantially perpendicular to said top edge (13) and designed to improve the seal in the zone where said visor (3) and said mouth-guard (4) are joined together.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69914768T DE69914768T2 (en) | 1999-11-16 | 1999-11-16 | Helmet for motorcyclists |
EP19990830711 EP1101419B1 (en) | 1999-11-16 | 1999-11-16 | Crash-helmet for motorcyclists |
ES99830711T ES2215371T3 (en) | 1999-11-16 | 1999-11-16 | PROTECTIVE HELMET FOR MOTORCYCLES. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19990830711 EP1101419B1 (en) | 1999-11-16 | 1999-11-16 | Crash-helmet for motorcyclists |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1101419A1 EP1101419A1 (en) | 2001-05-23 |
EP1101419B1 true EP1101419B1 (en) | 2004-02-11 |
Family
ID=8243668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19990830711 Expired - Lifetime EP1101419B1 (en) | 1999-11-16 | 1999-11-16 | Crash-helmet for motorcyclists |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1101419B1 (en) |
DE (1) | DE69914768T2 (en) |
ES (1) | ES2215371T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008542564A (en) * | 2005-06-03 | 2008-11-27 | シイビイエム ディストリビューション | Protective helmet with movable visor |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2876882B1 (en) * | 2004-10-27 | 2007-03-02 | Shark Sa Sa | PROTECTIVE HELMET WITH MOBILE CHIN, ESPECIALLY FOR MOTORCYCLISM |
EP1806986B1 (en) * | 2004-10-27 | 2009-07-22 | Shark SA | Protective helmet with movable chin guard, which is particularly suitable for motorcycling |
ITFI20110045U1 (en) * | 2011-08-10 | 2013-02-11 | Antonio Ceccotti | MODULAR PROTECTION HELMET |
ES2527554B1 (en) * | 2013-07-25 | 2015-11-10 | Shiro Helmets, S.A. | Protective helmet for cyclists and skiers |
FR3023681B1 (en) * | 2014-07-21 | 2016-08-19 | Shark | MOBILE CHAIN PROTECTION HELMET WITH AUTOMATIC SCREEN LIFTING MECHANISM |
EP3001919B1 (en) * | 2014-09-30 | 2018-03-14 | Locatelli S.p.A. | Helmet for motorcycling |
IT202100006068A1 (en) * | 2021-03-15 | 2022-09-15 | Locatelli S P A | PROTECTIVE HELMET |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT206876Z2 (en) * | 1985-11-05 | 1987-10-12 | Vitaloni Spa | MOTORCYCLE HELMET AND ANALOGUE ACTIVITY WITH MOBILE VISOR AND CHIN GUARD |
DE69604379T2 (en) * | 1996-03-18 | 2000-01-05 | E D C Sarl | Full face helmet for motorcyclists or the like with device for opening / closing the chin guard |
-
1999
- 1999-11-16 EP EP19990830711 patent/EP1101419B1/en not_active Expired - Lifetime
- 1999-11-16 DE DE69914768T patent/DE69914768T2/en not_active Expired - Fee Related
- 1999-11-16 ES ES99830711T patent/ES2215371T3/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008542564A (en) * | 2005-06-03 | 2008-11-27 | シイビイエム ディストリビューション | Protective helmet with movable visor |
CN100559985C (en) * | 2005-06-03 | 2009-11-18 | Cbm分配公司 | The protection skullcap of the movable face shield spare of band |
JP4792080B2 (en) * | 2005-06-03 | 2011-10-12 | シイビイエム ディストリビューション | Protective helmet with movable visor |
Also Published As
Publication number | Publication date |
---|---|
DE69914768D1 (en) | 2004-03-18 |
DE69914768T2 (en) | 2004-12-09 |
ES2215371T3 (en) | 2004-10-01 |
EP1101419A1 (en) | 2001-05-23 |
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