EP0861606A2 - Dispositif mécanique de sécurité pour casque de protection - Google Patents

Dispositif mécanique de sécurité pour casque de protection Download PDF

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Publication number
EP0861606A2
EP0861606A2 EP97120841A EP97120841A EP0861606A2 EP 0861606 A2 EP0861606 A2 EP 0861606A2 EP 97120841 A EP97120841 A EP 97120841A EP 97120841 A EP97120841 A EP 97120841A EP 0861606 A2 EP0861606 A2 EP 0861606A2
Authority
EP
European Patent Office
Prior art keywords
appendages
helmet
crash
rotation
safety device
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.)
Withdrawn
Application number
EP97120841A
Other languages
German (de)
English (en)
Other versions
EP0861606A3 (fr
Inventor
Gianfranco Mozzati
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.)
GFM Srl
Original Assignee
GFM Srl
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 GFM Srl filed Critical GFM Srl
Publication of EP0861606A2 publication Critical patent/EP0861606A2/fr
Publication of EP0861606A3 publication Critical patent/EP0861606A3/fr
Withdrawn legal-status Critical Current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
    • A42B3/0406—Accessories for helmets
    • A42B3/0473—Neck restraints

Definitions

  • the present invention relates to a safety device for crash helmets for the purpose of preventing irregular movements, compression and rotation of the neck caused by accident trauma.
  • the present invention concerns a safety device for crash helmets for the purpose of preventing irregular movements, compression and rotation of the neck caused by accident trauma.
  • the present invention further concerns a safety device that can be integrated into already existing crash helmets or directly inserted into newly manufactured crash helmets.
  • the present invention seeks to provide a mechanical safety device for crash helmets for the purpose of preventing irregular movements, compression and rotation of the neck caused by accident trauma.
  • This device can be integrated into already existing crash helmets by means of a hook or directly inserted into newly manufactured crash helmets.
  • the device is a streamlined structure, essentially characterized by two mobile appendages, rigorously attached to the lateral surface of a helmet and in perfect symmetry with the helmet's longitudinal axis. Movement of the appendages is triggered by inertial sensors.
  • the device is equipped with a robust hooking system for attachment to a crash helmet.
  • the appendages operatively connected to two rings of ball bearings, are hinged to a support at the base of the helmet. Because of their particular shape, when the appendages are completely expanded, as well as pressing on the shoulders of the person wearing the helmet, they prevent compression to the neck by completely blocking the rotation of the head.
  • a robust, coaxially hinged spring rotates the appendages by simultaneously turning them in opposite directions.
  • the two ball bearing rings work in accordance with the spring and are interfered with by means of a pin that is used to block the rotation of the appendages at a particular point.
  • One of the inertial sensors having an oscillating mass, is sensitive to inclinations and violent accelerations.
  • Another sensor having a centrifugal mass, is activated by a cord that is sensitive to abrupt, sharp movements linked to the main frame of the motorcycle.
  • the activation of the movement of the protective appendages starts when the motorcyclist assumes an abnormal position or a violent acceleration.
  • the sensors detect the abnormal movements and activate rotation of the appendages.
  • the activation of the two highly sensitive inertial sensors is inhibited by a manually operated safety device.
  • the integration of the device with crash helmets makes the helmets safer than conventional helmets and more suitable to reduce the severity of traumas caused by the violent impacts of the spinal column and irregular movements, compression and rotation of the neck, which motorcyclists involved in road accidents often undergo.
  • Figures 1 and 2 illustrates a safety device for crash helmets, characterized by a set of appendages 2 and 3 securely fastened to the external surface of a helmet 1 in perfect symmetry about a longitudinal dividing line of the helmet 1.
  • the appendages 2 and 3 are expanded by means of inertial sensors 22 and 27 in accordance with a preferred embodiment of the present invention.
  • the appendages 2 and 3, attached to two rings of ball bearings 7 and 8, are hinged on a support 4 and are suspended by a large, coaxial spring 9 that allows the appendages to turn simultaneously in opposite directions.
  • a self-blocking pin 16 is used to block contra-rotation of the rings by maintaining their open position.
  • the release system 17 is necessary to reset the closing of the appendages 2 and 3; the eventual reopening click is blocked by a safety device 14 that inhibits the decoupling of hooks 10 and 11 suspended by springs 12 and 13 attached to the sensors 22 and 27.
  • the decoupling of the hooks 10 and 11 is activated by the sensors 22 and 27 and starts the rotation of the protective appendages 2 and 3.
  • the oscillating mass sensor 27, which is sensitive to dangerous inclinations and violent accelerations, is comprised of a rotating part having a ball bearing ring 25 and a pivot pin 20 that supports two diametrically opposed masses 18 and 19.
  • the centrifugal mass sensor 22, comprised of two masses 21, is sensitive to pulls induced by a cord 24 connected by a hook 26 to the chassis of a motorcycle.
  • the centrifugal mass sensor 22 has a pivot pin 29 in a central position, around which a hook 10, suspended by a spring 13, can rotate in a limited fashion, insomuch as it is blocked by a blocking pin 28. Due to violent turns induced by pulls to the cord 24, the masses 21 interfere with an expansion 23 that works in accord with the hook 10, causing the hook to turn for release. When release occurs, an instant expansion of the appendages 2 and 3 blocks the repeated and violent movements of the body.

Landscapes

  • Helmets And Other Head Coverings (AREA)
  • Scissors And Nippers (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Basic Packing Technique (AREA)
EP97120841A 1996-11-28 1997-11-27 Dispositif mécanique de sécurité pour casque de protection Withdrawn EP0861606A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96MI002481A IT1286413B1 (it) 1996-11-28 1996-11-28 Dispositivo di sicurezza per caschi applicabile o direttamente integrato caratterizzato da una struttura carenata con precipue
ITMI962481 1996-11-28

Publications (2)

Publication Number Publication Date
EP0861606A2 true EP0861606A2 (fr) 1998-09-02
EP0861606A3 EP0861606A3 (fr) 1998-11-18

Family

ID=11375293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97120841A Withdrawn EP0861606A3 (fr) 1996-11-28 1997-11-27 Dispositif mécanique de sécurité pour casque de protection

Country Status (2)

Country Link
EP (1) EP0861606A3 (fr)
IT (1) IT1286413B1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993007772A2 (fr) * 1991-09-06 1993-04-29 Shreve Mclaren Archer, Iii Systeme de protection des vertebres cervicales
US5272770A (en) * 1992-11-16 1993-12-28 Allen Richard K Head restraining system
FR2700746B1 (fr) * 1993-01-28 1995-12-29 Robert Schegerin Systeme ameliorant la mobilite de la tete protegee par un casque et soumise a des accelerations.
US5517699A (en) * 1993-09-14 1996-05-21 Abraham, Ii; George E. Devices for preventing cervical spine injuries in contact sports
US5444870A (en) * 1994-02-07 1995-08-29 Pinsen; David Football helmet and shoulder pad combination
DE4416847A1 (de) * 1994-05-13 1995-11-16 Temic Bayern Chem Airbag Gmbh Sicherheitsschutzhelm für Motorradfahrer

Also Published As

Publication number Publication date
ITMI962481A1 (it) 1998-05-28
EP0861606A3 (fr) 1998-11-18
IT1286413B1 (it) 1998-07-08
ITMI962481A0 (it) 1996-11-28

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