EP0859560B1 - An article of headgear - Google Patents
An article of headgear Download PDFInfo
- Publication number
- EP0859560B1 EP0859560B1 EP96931181A EP96931181A EP0859560B1 EP 0859560 B1 EP0859560 B1 EP 0859560B1 EP 96931181 A EP96931181 A EP 96931181A EP 96931181 A EP96931181 A EP 96931181A EP 0859560 B1 EP0859560 B1 EP 0859560B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- helmet
- mounting
- channel
- shell
- mirror
- 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
- A42B3/04—Parts, details or accessories of helmets
- A42B3/0406—Accessories for helmets
- A42B3/042—Optical devices
- A42B3/0426—Rear view devices or the like
Definitions
- the invention relates to an article of headgear.
- a helmet having a protective shell and padding inside the shell, the padding having a channel formed therethrough, the channel having a base, side walls and an open top, and a separate one piece mounting inside the shell, the mounting carrying or comprising a plurality of mirrors, the mounting being arranged to be located across the open top of the channel so as to be carried by the padding on either side of the channel with the mirrors facing from the mounting into the channel, the mirrors and channel thus defining or forming part of a system enabling a person wearing the article to see rearwards through the channel.
- the viewing system is provided within rather than outside the shell of the helmet greatly improves the safety of the helmet.
- the fact that the mirror or mirrors are carried by or formed on a one piece mounting simplifies manufacture of the mounting and also enables the mounting together with the mirrors to be easily assembled within the helmet.
- the fact that the mounting is provided within the helmet also means that it can be made lightweight and the helmet of the invention can be very significantly lighter than the prior known helmet.
- At least a portion of the mounting may extend from one side of the inner surface of the shell to the other, in a direction transverse to the fore and aft direction of the helmet. In this way, the mounting is readily located for fixing and can, if desired reinforce the strength of the shell.
- Sideways locating means may be provided between the shell and the mounting.
- the sideways locating means may comprise a rib on one of the shell and the mounting and means defining a groove to receive the rib on the other of the shell and the mounting.
- the mounting may include portions which engage in rebates at the top of the walls of the channel.
- the upper surface of the mounting preferably follows the general contour of the shell.
- the mounting can thus be fitted closely and snugly against the inside of the shell.
- the lower surface of the mounting which faces into the channel preferably follows the general contour of the shell.
- the mounting will also in this way follow the contour of a wearer's head to improve safety.
- the channel may be open at either or both ends but preferably the shell includes a transparent window element opposite the end of the channel.
- the transparent window element may be a separate part or alternatively may be integral with the shell.
- the mounting may be substantially constant thickness. This reduces the material required and hence the weight of the mounting while making moulding from plastics easier.
- the mounting may conveniently comprise a plurality of substantially planar sections.
- the channel is defined in a padding material such as foam within the helmet and the padding material may have increased resilience locally alongside the channel.
- Each mirror may take any suitable form and may be electrodeposited onto a surface of the mounting.
- the mounting may suitably be made of plastics material such as ABS or an alloy of ABS and polycarbonate while the electrodeposited material may be metal and may for example be chromium.
- the channel may be divided at least at the front of the article by further padding material. This provides greater energy absorption.
- An aperture may be provided in the padding material adjacent at least one mirror such as to allow pressurized air to be directed against the mirror to clean it.
- the optical elements constituted by the mirrors may be of any desired shape but preferably at least one of the optical elements constituted by the mirrors is parabolically curved.
- the mirror into which a wearer will look is preferably parabolically concave.
- the first optical element into which a wearer looks, in use is parabolically concave and focused at the wearer's eye. This will reduce the spread of rays in the light path and hence enable the channel to be reduced in size.
- the final optical element may be a parabolically convex mirror. This will increase the spread of rays to compensate for a parabolically concave first mirror and/or to increase the field of view.
- the helmet 10 of the embodiment comprises an outer shell 12 made of strong plastics material and a soft inner foam layer 14 within the shell 12.
- a liner 16 which may be made of cloth is shown over the inner surface of the foam 14.
- a one piece mounting 18 is provided in the roof of the shell 12 and may be made of ABS or a plastics alloy of ABS and polycarbonate.
- the mounting 18 comprises four planar sections and one slightly convex section serially connected edge to edge.
- the first planar section 20 lies flat against a planar extension 21 of the outer shell 12 which extends into the upper field of view of the wearer.
- the inwardly facing surface of the first section 20 is electrodeposited with chromium to form a mirror surface 23.
- the second planar section 22 extends across the curved part of the shell 12 and is connected at its edge to a third planar section 24, the lower surface of which is metallised with electrodeposited chromium to form a mirror surface 26.
- a rib 28 extends upwardly to the shell 12 from the junction between the third planar section 24 and the fourth planar section 30 which is relatively short and a further rib 32 extends from the other edge of the fourth planar section 30 where it is connected to the convex section 34 which leads to the rear of the helmet.
- a single lateral rib 36 parallel to the ribs 28 and 32 extends centrally from the convex section 34.
- the convex section 34 is also metallised on its lower surface to provide a mirror surface 40.
- a flange 42 extends from the inner surface of the helmet 12 and the rear edge of the convex section 34 lies against the lower surface of the flange 42. The extension 21 and flange 42 assist in locating the mounting 18 longitudinally in the shell 12.
- rib 36 Behind the rib 36 are provided three further ribs 44,46 which lie in a longitudinal plane, as shown in Fig. 2.
- the central rib 44 extends to the inner surface of the shell 12 while the two outer ribs 46 extend from bosses 48 provided on the convex section 34 and are received in grooves 50 defined in bosses 52 depending from the inner surface of the shell 12.
- a rectangular cross-section channel 54 is defined between the mounting 18 and the foam 14 and leads to a transparent window section 56 of the shell 12.
- a further flange 58 is provided from the shell 12 extending over the floor of the channel 54 to a position on a radial plane of the helmet 10 intersecting the upper edge of the window 56.
- the mounting 18 can be injection moulded and the electrodeposited areas can be connected by thin lines so that all three mirror surfaces 23,26,40 can be electrodeposited together for ease of manufacture.
- the mounting 18 complete with mirrored surfaces is simply slid into the channel until the first section 20 lies against the extension 21 of the helmet shell 12 and the convex section 34 of the mounting 18 lies against the flange 42 with the ribs 44,46 in the boss grooves 50 for sideways location and can be glued into place.
- the mounting 18 as shown is very lightweight.
- the mounting 18 can be strengthened e.g. of greater thickness or stronger material to reinforce the helmet. Clearly compromises between strength and weight can be struck as desired.
- the flange 58 of the foam 14 adjacent the channel 56 may have additional resilience to compensate for the gap constituted by the channel.
- the ribs 28,32,36 are not provided.
- the channel 54 is sealed and may be filled with dry gas or may be evacuated in order to protect the mirror surfaces 23,26,40.
- the foam 14 at the floor of the channel 54 would be covered and the front of the channel 54 would be sealed with a further transparent window 56.
- the one-piece mounting 18 provides a fourth mirror surface and a fifth mirror surface is provided at the base of the rear of the helmet 10 on the floor of the channel 54 which will extend over the entire longitudinal circumference of the helmet so that the final mirror surface faces outwardly under the lower edge of the shell 12.
- a screen such as an LCD screen may be provided in the channel 54 to provide information to the wearer.
- the mounting 18 of the second embodiment comprises five sections 20,22,24,30,34 like the mounting 18 of the first embodiment, but the first section 20 is a separate part which includes outwardly extending hemispherical projections 60 which are snap-fitted into hemispherical recesses 62 in two arms 64 which depend from the front edge of the second section 22.
- the angle of the first section 20 can be adjusted by pivoting it, the friction between the parts 20,64 holding the first section 20 at the desired angle after adjustment.
- the mirror surface 23 of the first section 20 is in the shape of the surface of a paraboloid and is concave.
- the mirror surface 26 on the third section 24 is planar.
- the mirror surface 40 on the fifth section 34 is in the shape of a surface of a paraboloid, this time being convex.
- the mounting ribs 28,32,36,42,44,46 and bosses 48,52 are not provided so that the entire mounting 18 is substantially circumferential to a wearer's head.
- the channel 54 can be much smaller both in depth and width.
- the mounting 18 is wider than the channel 54 and is received in rebates 66 in the upper edges of the channel 54 and then taped onto the foam 14 with adhesive tape (not shown).
- An addition is the use of a black cloth lining 68 for the channel 54 to reduce extraneous reflections.
- the window 56 is made of a very strong transparent material such as polycarbonate and includes a wide mounting flange 70 all around it which overlaps the inner surface of the shell 12 enabling the window 56 to be glued to the shell 12.
- the window 56 may be made from about 3mm thick polycarbonate.
- a person wearing the helmet 10 can look into the first mirror surface 23 and reflections from the first, second and third mirror surfaces 26,40 enable the wearer to see what is behind him.
- the angle of the first section 20 which bears the first mirror surface 23 can be adjusted manually to suit the eye position of different wearers and also to suit different riding stances.
- first and last mirror surfaces 23,40 are parabolically curved means that the size of the channel 54 and also the size of the window 56 can be reduced significantly in comparison with arrangements using planar mirrors. Indeed, it has been calculated that, for the same field of view, the width of the final mirror surface 40 and the window 56 can be reduced by 29% using the parabolic mirrors of the invention. This large improvement has a correspondingly large improvement in safety as a greater thickness of foam can be used inside a helmet of the same outer dimensions resulting in better energy absorption. There are also cosmetic advantages in that the size of the helmet can be made closer to that of a normal helmet i.e. one without a rear viewing system.
- the method of mounting the mounting 18 is very simple and as the mounting 18 only comprises two pans, which comprise plate-like sections in series. They can be very readily manufactured for example by injection moulding from a suitable plastics material such as ABS, a combination of ABS and polycarbonate, or a composite material such as glass reinforced plastic, in particular, glass filled reinforced nylon.
- a suitable plastics material such as ABS, a combination of ABS and polycarbonate, or a composite material such as glass reinforced plastic, in particular, glass filled reinforced nylon.
- the entire outer shell 12 may be made from transparent polycarbonate. This does away with the need for affixing the window 56 which would then merely be an integral part of the transparent shell 12.
- the shell 12 could be left transparent, or could be painted except for the area for the window 56.
- the channel 54 may not be a single open channel at the front of the helmet, but instead the foam 14 may extend up to the mounting 18 to form a dividing wall at the front of the channel 54. This will not affect the view for the wearer as it will not impinge upon the light paths.
- the dividing wall may be triangular being wider at the front to provide optimum strength by maximum size of the dividing wall.
- the central dividing wall may have a different density foam to increase strength and/or absorption of energy upon impact in that region.
- Apertures may be provided through the foam 14 and the lining cloth into the channel 54 opposite each of the mirror surfaces 23, 26, 40. This enables the mirrors to be cleaned by using an aerosol can of compressed air. The air is directed onto each mirror in turn through its respective aperture.
- the adjustable mirror of the second embodiment could be replaced by a fixed mirror as in the first embodiment, if desired.
- the position of the mirrors could be varied to provide dedicated helmets for different types of riding style.
- a helmet is envisaged with a mirror position specifically for riders of racing style motorcycles who lean forwards in prone position.
- Helmets could also be produced dedicated to the riders of custom motorcycles who lie recumbent.
- the mounting 18 may be movable within the helmet to allow for rider position changes.
- Air vents may be provided in the foam leading to the channel 54 to provide cooling air to the head, or alternatively to provide de-misting for the mirror surfaces 23, 26, 40 to eliminate condensation.
- helmets are described as intended for use by motorcyclists, the same helmet or helmets with the same viewing system could be used as cyclist's helmets, driving helmets, motor racing helmets, police helmets, fireman's helmets, military helmets, pilot's helmets, space helmets, safety helmets or security guard helmets, amongst others.
Landscapes
- Helmets And Other Head Coverings (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9519377 | 1995-09-22 | ||
GBGB9519377.7A GB9519377D0 (en) | 1995-09-22 | 1995-09-22 | A helmet |
PCT/GB1996/002349 WO1997010731A1 (en) | 1995-09-22 | 1996-09-23 | An article of headgear |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0859560A1 EP0859560A1 (en) | 1998-08-26 |
EP0859560B1 true EP0859560B1 (en) | 2003-01-15 |
Family
ID=10781110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96931181A Expired - Lifetime EP0859560B1 (en) | 1995-09-22 | 1996-09-23 | An article of headgear |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0859560B1 (xx) |
JP (1) | JP3795081B2 (xx) |
AU (1) | AU709102B2 (xx) |
BR (1) | BR9610482A (xx) |
CA (1) | CA2232265C (xx) |
DE (1) | DE69625824T2 (xx) |
ES (1) | ES2191765T3 (xx) |
GB (1) | GB9519377D0 (xx) |
MX (1) | MX9802239A (xx) |
NZ (1) | NZ318486A (xx) |
WO (1) | WO1997010731A1 (xx) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007054733A1 (en) * | 2005-11-14 | 2007-05-18 | Reevu Limited | Mirror position adjuster |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9815614D0 (en) * | 1998-07-18 | 1998-09-16 | Hoodco 446 Limited | A mirror arrangement for a rear view mirror system in an article of headgear |
ATE237964T1 (de) * | 1999-07-02 | 2003-05-15 | Ceo Ct Di Eccellenza Optronica | Schutzhelm mit rückblickspiegeleinrichtung |
JP4489753B2 (ja) * | 2006-12-27 | 2010-06-23 | 株式会社シマノ | 自転車用ヘルメット |
US8156575B2 (en) | 2009-09-01 | 2012-04-17 | Tronvig William J | Headwear comprising rearview mirrors |
JP5906446B2 (ja) * | 2010-11-15 | 2016-04-20 | 株式会社マルセイ | 鏡製品、つば(又はひさし)、ヘルメット、帽子又はバイザー |
GB201312424D0 (en) * | 2013-07-11 | 2013-08-28 | Steele Mark | Article of headgear |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE864521A (nl) * | 1978-03-03 | 1978-09-04 | Jansen Jacobus L P | Achteruitkijkhelm |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3059519A (en) * | 1956-09-05 | 1962-10-23 | Austin N Stanton | Headgear mounted cathode ray tube and binocular viewing device |
FR1291711A (fr) * | 1961-03-16 | 1962-04-27 | Casque rétroviseur | |
DE2730635A1 (de) * | 1977-07-07 | 1979-01-25 | Gelhard | Rueckspiegel, der am kopf des benutzers getragen wird |
FR2430206A1 (fr) * | 1978-07-06 | 1980-02-01 | Cuvillier Roger | Casque de protection a retroviseur incorpore |
BE888108R (nl) * | 1981-03-25 | 1981-09-25 | Jansen Jacobus L P | Achteruitkijkhelm |
FR2631789A1 (fr) * | 1988-05-26 | 1989-12-01 | Mesure Arthur | Casque ou couvre-chef analogue a retroviseur incorpore |
GB9306798D0 (en) * | 1993-04-01 | 1993-05-26 | Steele Mark | An article of head wear |
-
1995
- 1995-09-22 GB GBGB9519377.7A patent/GB9519377D0/en active Pending
-
1996
- 1996-09-23 BR BR9610482-1A patent/BR9610482A/pt not_active IP Right Cessation
- 1996-09-23 ES ES96931181T patent/ES2191765T3/es not_active Expired - Lifetime
- 1996-09-23 DE DE69625824T patent/DE69625824T2/de not_active Expired - Fee Related
- 1996-09-23 JP JP51250097A patent/JP3795081B2/ja not_active Expired - Fee Related
- 1996-09-23 EP EP96931181A patent/EP0859560B1/en not_active Expired - Lifetime
- 1996-09-23 NZ NZ318486A patent/NZ318486A/xx unknown
- 1996-09-23 AU AU69973/96A patent/AU709102B2/en not_active Ceased
- 1996-09-23 CA CA002232265A patent/CA2232265C/en not_active Expired - Fee Related
- 1996-09-23 WO PCT/GB1996/002349 patent/WO1997010731A1/en active IP Right Grant
-
1998
- 1998-03-20 MX MX9802239A patent/MX9802239A/es not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE864521A (nl) * | 1978-03-03 | 1978-09-04 | Jansen Jacobus L P | Achteruitkijkhelm |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007054733A1 (en) * | 2005-11-14 | 2007-05-18 | Reevu Limited | Mirror position adjuster |
Also Published As
Publication number | Publication date |
---|---|
NZ318486A (en) | 1999-06-29 |
ES2191765T3 (es) | 2003-09-16 |
MX9802239A (es) | 1998-11-29 |
BR9610482A (pt) | 1999-12-21 |
AU709102B2 (en) | 1999-08-19 |
EP0859560A1 (en) | 1998-08-26 |
GB9519377D0 (en) | 1995-11-22 |
JPH11512496A (ja) | 1999-10-26 |
AU6997396A (en) | 1997-04-09 |
DE69625824T2 (de) | 2003-11-13 |
WO1997010731A1 (en) | 1997-03-27 |
CA2232265C (en) | 2007-11-20 |
JP3795081B2 (ja) | 2006-07-12 |
DE69625824D1 (de) | 2003-02-20 |
CA2232265A1 (en) | 1997-03-27 |
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