FR2346992A1 - Safety helmet with shock-absorbent core between rigid shells - comprises non-resilient core, and permanently deformable honeycomb material with walls of thin metal, plastic or resin, esp. polyester - Google Patents

Safety helmet with shock-absorbent core between rigid shells - comprises non-resilient core, and permanently deformable honeycomb material with walls of thin metal, plastic or resin, esp. polyester

Info

Publication number
FR2346992A1
FR2346992A1 FR7610112A FR7610112A FR2346992A1 FR 2346992 A1 FR2346992 A1 FR 2346992A1 FR 7610112 A FR7610112 A FR 7610112A FR 7610112 A FR7610112 A FR 7610112A FR 2346992 A1 FR2346992 A1 FR 2346992A1
Authority
FR
France
Prior art keywords
plastic
resin
walls
shock
polyester
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.)
Granted
Application number
FR7610112A
Other languages
French (fr)
Other versions
FR2346992B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7610112A priority Critical patent/FR2346992A1/en
Publication of FR2346992A1 publication Critical patent/FR2346992A1/en
Application granted granted Critical
Publication of FR2346992B1 publication Critical patent/FR2346992B1/fr
Granted legal-status Critical Current

Links

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
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A42B3/062—Impact-absorbing shells, e.g. of crash helmets with reinforcing means
    • A42B3/065—Corrugated or ribbed shells
    • 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
    • A42B3/10—Linings
    • A42B3/12—Cushioning devices
    • A42B3/124—Cushioning devices with at least one corrugated or ribbed layer

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

The helmet has rigid inner and outer shells, between which is a shock-absorbing layer composed of tubular cavities running directly across from one rigid shell to the other, the walls of the cavities being made of a permanently-deformable rigid material. A permanently deformable material absorbs more of the force of a blow than a resistant material. The tubular cavities may form a honeycomb, whose walls may be of thin sheet metal, of plastic, of resin-impregnated cloth or card, or of polyester-resin-impregnated cloth. The rigid shells may be of metal or plastic, and may simply rest on the honeycomb core, or be fastened to it, or be fastened to each other.
FR7610112A 1976-04-07 1976-04-07 Safety helmet with shock-absorbent core between rigid shells - comprises non-resilient core, and permanently deformable honeycomb material with walls of thin metal, plastic or resin, esp. polyester Granted FR2346992A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7610112A FR2346992A1 (en) 1976-04-07 1976-04-07 Safety helmet with shock-absorbent core between rigid shells - comprises non-resilient core, and permanently deformable honeycomb material with walls of thin metal, plastic or resin, esp. polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7610112A FR2346992A1 (en) 1976-04-07 1976-04-07 Safety helmet with shock-absorbent core between rigid shells - comprises non-resilient core, and permanently deformable honeycomb material with walls of thin metal, plastic or resin, esp. polyester

Publications (2)

Publication Number Publication Date
FR2346992A1 true FR2346992A1 (en) 1977-11-04
FR2346992B1 FR2346992B1 (en) 1979-05-11

Family

ID=9171499

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7610112A Granted FR2346992A1 (en) 1976-04-07 1976-04-07 Safety helmet with shock-absorbent core between rigid shells - comprises non-resilient core, and permanently deformable honeycomb material with walls of thin metal, plastic or resin, esp. polyester

Country Status (1)

Country Link
FR (1) FR2346992A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3222681A1 (en) * 1982-06-16 1983-12-22 Egon 4830 Gütersloh Busch PROTECTIVE HELMET AND METHOD FOR PRODUCING PROTECTIVE HELMETS
FR2542668A1 (en) * 1983-03-15 1984-09-21 Claude Morin PROCESS FOR PRODUCING A CURVED SURFACE ELEMENT FROM A RIGID BOARD OF A MATERIAL OF THE "HONEYCOMB" TYPE AND PRODUCT OBTAINED
WO1986003383A1 (en) * 1984-12-11 1986-06-19 Airsorb Pty. Ltd. Protective helmet and locking means
WO1994000031A1 (en) * 1992-06-27 1994-01-06 Brine, Christopher, Andrew Safety helmets
WO2014177872A1 (en) * 2013-04-30 2014-11-06 Aldino Albertelli Protective headwear
EP3253243B1 (en) 2015-02-04 2020-04-01 Oxford University Innovation Limited An impact absorbing structure and a helmet comprising such a structure

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3222681A1 (en) * 1982-06-16 1983-12-22 Egon 4830 Gütersloh Busch PROTECTIVE HELMET AND METHOD FOR PRODUCING PROTECTIVE HELMETS
FR2542668A1 (en) * 1983-03-15 1984-09-21 Claude Morin PROCESS FOR PRODUCING A CURVED SURFACE ELEMENT FROM A RIGID BOARD OF A MATERIAL OF THE "HONEYCOMB" TYPE AND PRODUCT OBTAINED
EP0123572A1 (en) * 1983-03-15 1984-10-31 Claude Morin Method for the production of a curved surface element from a rigid panel of honey comb-type material, and the product obtained
US4548665A (en) * 1983-03-15 1985-10-22 Immolding Establishment Method for manufacturing an element having a curved surface from a rigid panel of a material of the "honeycomb" type and the product obtained
WO1986003383A1 (en) * 1984-12-11 1986-06-19 Airsorb Pty. Ltd. Protective helmet and locking means
WO1994000031A1 (en) * 1992-06-27 1994-01-06 Brine, Christopher, Andrew Safety helmets
US5561866A (en) * 1992-06-27 1996-10-08 Leslie Ross Safety Helmets
WO2014177872A1 (en) * 2013-04-30 2014-11-06 Aldino Albertelli Protective headwear
US11122848B2 (en) 2013-04-30 2021-09-21 Aldino Albertelli Protective headwear
EP3253243B1 (en) 2015-02-04 2020-04-01 Oxford University Innovation Limited An impact absorbing structure and a helmet comprising such a structure

Also Published As

Publication number Publication date
FR2346992B1 (en) 1979-05-11

Similar Documents

Publication Publication Date Title
SE8200290L (en) LAMINATE EVERYBODY SET TO MAKE SADANT
ES2084078T3 (en) LAMINATED ADHESIVE TAPE COMPOSED WITH AN ENDLESS COIL IN ROLL SHAPE AND PROCESS TO FORM THE ROLL OF LAMINATED ADHESIVE TAPE.
ES244331Y (en) A HELMET FOR BIKERS AND THE LIKE.
BR7704891A (en) JUNCTION PROCESS WITH HOT-CAST THERMOPLASTIC ADHESIVE FOAM
ES8305621A1 (en) Non-slip plastic film
FR2067586A5 (en) Laminated ski
FR2346992A1 (en) Safety helmet with shock-absorbent core between rigid shells - comprises non-resilient core, and permanently deformable honeycomb material with walls of thin metal, plastic or resin, esp. polyester
FR2340066A1 (en) Protective helmet of foamed polyurethane between two rigid shells - which are connected only by the plastic foam
ES489207A0 (en) PROCEDURE FOR THE MANUFACTURE OF A LAMINATED STRUCTURE OF FINE SKIN REINFORCED WITH POLYMERIC FOAM.
IT7919298A0 (en) FORMING OF HONEYCOMB SHEETS OF THERMOPLASTIC RESINS COUPLED WITH THERMOFORMABLE CROSS-LINKED POLYETHYLENE FOAM.
JPS5329870A (en) Synthetic resin foam composite film bag having transparent portion and cylindrical film extrusion die used for the same bag
GB1043210A (en) Manufacture of plastics material articles
ATE52006T1 (en) CRASH HELMET.
JPS56114498A (en) Plane diaphragm
JPS55166397A (en) Speaker diaphragm
JPS51124179A (en) Synthetic resin laminated products
JPS53132080A (en) Long fiberglass reinforced thermoplastic resin sheet
GB1332492A (en) Protectors for the ends of rolls of pliable sheet material
FR2448992A1 (en) Sun visor for car - is made of expanded polystyrene pad enclosed in plastic foil with plastic mounting pin
FR2148928A5 (en) Water ski - of polyurethane foam with embedded metal reinforcement
KR900016329A (en) Manufacturing method of foamed polyethylene sheet having cold protection and buoyancy function
FR2298432A2 (en) Composite partitions incorporating fibrous layers - with an impermeable film interlayer to prevent excessive wetting
JPS54135877A (en) Production of laminated molded construction
FR2155610A5 (en) Packaging material - provided as thin flexible cellular material formed into a roll
FR2057470A5 (en) Dais of resin reinforced paper

Legal Events

Date Code Title Description
ST Notification of lapse