EP0131929B1 - Casque de protection pour motocyclistes - Google Patents

Casque de protection pour motocyclistes Download PDF

Info

Publication number
EP0131929B1
EP0131929B1 EP84108236A EP84108236A EP0131929B1 EP 0131929 B1 EP0131929 B1 EP 0131929B1 EP 84108236 A EP84108236 A EP 84108236A EP 84108236 A EP84108236 A EP 84108236A EP 0131929 B1 EP0131929 B1 EP 0131929B1
Authority
EP
European Patent Office
Prior art keywords
transverse
helmet
ribs
grooves
transverse ribs
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
Application number
EP84108236A
Other languages
German (de)
English (en)
Other versions
EP0131929A2 (fr
EP0131929A3 (en
Inventor
Siegfried Huber
Wolfgang Seehaus
Bernhard Hofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to AT84108236T priority Critical patent/ATE26908T1/de
Publication of EP0131929A2 publication Critical patent/EP0131929A2/fr
Publication of EP0131929A3 publication Critical patent/EP0131929A3/de
Application granted granted Critical
Publication of EP0131929B1 publication Critical patent/EP0131929B1/fr
Expired legal-status Critical Current

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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
    • A42B3/0493—Aerodynamic helmets; Air guiding means therefor

Definitions

  • the invention relates to a protective helmet for motorcyclists of the type mentioned in the preamble of claim 1 and made known by US-A-4 075 714.
  • the transverse ribs are arranged in sections adjacent to one another at the top thereof, each of which, as shown in FIGS. 3a to 3c, has a sawtooth-shaped cross-sectional profile.
  • the well-known protective helmet serves to protect the head of an aircraft occupant when ejected from the aircraft, whereby a lift is generated by the air layer flowing over the top of the helmet. This is reduced by designing the cross ribs as a sawtooth profile and also arranging holes in it.
  • the transverse ribs present on the known protective helmet serve a different purpose than the transverse ribs or transverse grooves provided on the protective helmet according to the invention.
  • the aerofoil of an aircraft which emerges from US Pat. No. 4,354,648, has on its upper side a plurality of short profiled strips which are arranged in sections next to one another and in two or three rows one behind the other. Air swirls are generated by the profile strips in their area on the surface of the wing.
  • a motorcyclist usually keeps his head tilted more or less deeply at different vehicle speeds for aerodynamic or habitual reasons, whereby of course his protective helmet also takes on correspondingly different inclinations.
  • his protective helmet also takes on correspondingly different inclinations.
  • this results in changed air flow angles on the protective helmet and thus different sized air resistances.
  • the air flow acting on the rear of the helmet tears off considerably below the highest helmet curvature area, as a result of which an air flow flowing over the rear of the helmet towards the lower edge of the helmet has been formed.
  • the object of the invention is to design a protective helmet according to the preamble of claim 1 such that an air stream flowing approximately tangentially along the helmet tip at the highest curvature area of the helmet tip is reliably separated by suitable designs on the latter, and is thereby independent of the respective inclination position of the motorcycle driver's head, so that it cannot flow to the lower edge of the helmet.
  • transverse ribs or transverse grooves designed according to the invention Due to the transverse ribs or transverse grooves designed according to the invention, the air resistance in all riding positions and the resulting different head positions of the motorcyclist, that is to say also in motorcycles with racing handlebars or touring handlebars, is largely the same.
  • the transverse ribs or transverse grooves can also advantageously be provided practically without additional costs when a protective helmet is manufactured.
  • cross ribs on an existing safety helmet can also be retrofitted at low cost.
  • transverse ribs or transverse grooves are expediently each about 1 to 2 mm high or deep and about 4 to 8 mm wide (features of Pa claims 2 and 3).
  • transverse ribs are formed in sections, with one transverse rib section covering a gap in the adjacent row of transverse ribs (feature of patent claim 4).
  • the motorcycle driver's helmet 1 shown in the drawing is designed as an integral helmet and has a viewing opening 2, which can be covered by a lens 3. This is mounted on two bearing bolts 4 engaging in the helmet shell 10 so that they can be swiveled up and down.
  • the protective helmet 1 has in the area of the helmet tip 6 a number of transverse ribs 7 and transverse grooves 8, each of which has a rectangular cross-sectional profile and protrudes beyond the helmet surface 10 'or is set back from it.
  • the transverse rib 7 is located to the right of the break line, while the transverse grooves 8 are shown to the left of the break line.
  • grooves 70 are formed between the transverse ribs 7, while webs 80 each remain between the transverse grooves 8.
  • transverse ribs 7 projecting only slightly beyond the helmet surface 10 ′ can also be provided with transverse grooves 8 set back from it.
  • transverse ribs 7 and / or transverse grooves 8 extend transversely or obliquely to the inflow direction a over the helmet tip 6 to approximately in the region of the upper edge 2 'of the viewing opening 2. It is also conceivable that the transverse ribs 7 and / or transverse grooves 8 each run arrow-shaped, where they converge in plan view of the helmet tip 6 in the area of the home symmetry plane.
  • transverse ribs 7 and transverse grooves 8 which have a rectangular cross-sectional profile, each have a height or tieback b of approximately 1 to 2 mm, while their cross-sectional width c is approximately 4 to 8 mm; the grooves 70 formed between the transverse ribs 7 and the webs 80 remaining between the transverse grooves 8 each have approximately the same cross-sectional profile of the transverse ribs 7 and transverse grooves 8.
  • transverse ribs 7 can also be designed in sections so that the air flow flowing towards the helmet tip 6 is optimally torn off in its area by the provided transverse ribs 7 and transverse grooves 8.
  • One transverse rib section expediently covers a gap in the adjacent row of transverse ribs 7.
  • the air flow acting on the protective helmet 1 in the area of the helmet tip 6 is separated from the area designated by f, if not already in front of it, in the area designated by f and flows behind the protective helmet 1 continues approximately horizontally, as illustrated by the arrows labeled a '.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Telephone Function (AREA)
  • Surgical Instruments (AREA)

Claims (4)

1. Casque de protection (1) pour motocycliste comportant des nervures transversales (7) ou des rainures transversales (8) au niveau de la partie supérieure (6) de la surface supérieure (10') du casque, et qui sont dirigées transversalement ou de manière inclinée par rapport à la direction d'écoulement (a) de l'air, caractérisé en ce que les nervures transversales (7) ou les rainures transversales (8) ont une section rectangulaire.
2. Casque de protection selon la revendication 1, caractérisé en ce que les nervures transversales (7) ou les nervures transversales (8) de forme rectangulaire ont une hauteur ou une profondeur (b) de l'ordre de 1 à 2 mm.
3. Casque de protection selon la revendication 1, caractérisé en ce que les nervures transversales (7) ou les rainures transversales (8) de forme rectangulaire ont une largeur (c) de l'ordre 4 à 8 mm.
4. Casque de protection selon la revendication 1, dont les nervures transversales sont segmentées, caractérisé en ce que chaque fois un segment de nervure transversale recouvre un intervalle de la rangée suivante des nervures transversales (7).
EP84108236A 1983-07-15 1984-07-12 Casque de protection pour motocyclistes Expired EP0131929B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84108236T ATE26908T1 (de) 1983-07-15 1984-07-12 Schutzhelm fuer motorradfahrer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3325601 1983-07-15
DE3325601A DE3325601C2 (de) 1983-07-15 1983-07-15 Schutzhelm für Motorradfahrer

Publications (3)

Publication Number Publication Date
EP0131929A2 EP0131929A2 (fr) 1985-01-23
EP0131929A3 EP0131929A3 (en) 1985-03-06
EP0131929B1 true EP0131929B1 (fr) 1987-05-06

Family

ID=6204088

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108236A Expired EP0131929B1 (fr) 1983-07-15 1984-07-12 Casque de protection pour motocyclistes

Country Status (3)

Country Link
EP (1) EP0131929B1 (fr)
AT (1) ATE26908T1 (fr)
DE (2) DE3325601C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD762925S1 (en) 2015-02-04 2016-08-02 3M Innovative Properties Company Helmet rib

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3444404A1 (de) * 1984-12-05 1986-06-12 Artur 7060 Schorndorf Föhl Schutzhelm fuer motorradfahrer, rennsportler oder dergleichen
US5023958A (en) * 1989-09-01 1991-06-18 Rotzin Stephen A Aerodynamic bicycle helmet
US5097538A (en) * 1990-06-11 1992-03-24 Feuling Engineering, Inc. Helmet
US5271102A (en) * 1990-06-11 1993-12-21 Feuling James J Helmet with fluid flow termination surface
US5165116A (en) * 1990-09-10 1992-11-24 Simpson Elwood J B Anti buffeting safety-racing helmet
US5575018A (en) * 1994-04-26 1996-11-19 Bell Sports, Inc. Open cockpit racing helmet
US6553580B1 (en) * 1998-03-18 2003-04-29 Dale L. Henson Method of protecting a helmet shell and interrupting airflow around the shell with a removable strip
GB2353939A (en) * 1999-09-13 2001-03-14 Rodney Aston Lee An aerodynamic safety helmet
DE20215102U1 (de) * 2002-10-01 2002-11-28 Uvex Sports Gmbh & Co Kg Schutzhelm
IT1397159B1 (it) * 2009-12-29 2013-01-04 Claudi Casco integrale da motociclismo avente protuberanze per la riduzione del runore percepito dovuto a fenomeni aerodinamici.
CN113729340B (zh) * 2021-08-31 2023-09-19 航宇救生装备有限公司 一种降低气动升力的飞行头盔

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE664959C (de) * 1938-09-10 Erich Destner Schutzhelm, insbesondere fuer Bergleute
US2899150A (en) * 1959-08-11 Bound vortex skin
GB487643A (en) * 1936-10-21 1938-06-23 Emil Furler Improvements in or relating to helmets
US3770483A (en) * 1968-02-28 1973-11-06 Komine Auto Center K K Noctilucent reflective helmet
US3548410A (en) * 1969-05-01 1970-12-22 Jerry W Parker Airfoil face shield and helmet
US3927421A (en) * 1974-08-23 1975-12-23 Alan A Simon Helmet visor
DE2526336A1 (de) * 1975-06-12 1976-12-16 Kalman Gyoery Einsatz fuer sicherheitshelme, insbesondere motorradhelme
DE7607301U1 (de) * 1976-03-10 1976-12-09 Fa. Hans Roemer, 7910 Neu-Ulm Motorsporthelm
US4075714A (en) * 1976-11-15 1978-02-28 Sierra Engineering Co. Helmet characterized by negative lift
GB2048056B (en) * 1979-04-25 1982-12-15 Int Helmets Ag Safety helmet
US4354648A (en) * 1980-02-06 1982-10-19 Gates Learjet Corporation Airstream modification device for airfoils
FR2523411A1 (fr) * 1982-03-22 1983-09-23 Renault Casque a structure alveolaire, notamment pour cycliste ou cyclomotoriste
DE8316411U1 (de) * 1983-06-04 1984-04-05 Schuberth-Werk Gmbh & Co Kg, 3300 Braunschweig Sturzhelm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD762925S1 (en) 2015-02-04 2016-08-02 3M Innovative Properties Company Helmet rib

Also Published As

Publication number Publication date
EP0131929A2 (fr) 1985-01-23
DE3325601A1 (de) 1985-01-31
EP0131929A3 (en) 1985-03-06
ATE26908T1 (de) 1987-05-15
DE3463437D1 (en) 1987-06-11
DE3325601C2 (de) 1985-06-27

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