WO1991008682A1 - Casque protecteur avec tampon gonflable - Google Patents

Casque protecteur avec tampon gonflable Download PDF

Info

Publication number
WO1991008682A1
WO1991008682A1 PCT/EP1990/002162 EP9002162W WO9108682A1 WO 1991008682 A1 WO1991008682 A1 WO 1991008682A1 EP 9002162 W EP9002162 W EP 9002162W WO 9108682 A1 WO9108682 A1 WO 9108682A1
Authority
WO
WIPO (PCT)
Prior art keywords
bladder
helmet
pressure
crash helmet
air
Prior art date
Application number
PCT/EP1990/002162
Other languages
English (en)
Inventor
Claudio Zarotti
Original Assignee
Vela S.R.L.
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 Vela S.R.L. filed Critical Vela S.R.L.
Priority to EP91900219A priority Critical patent/EP0506696B1/fr
Priority to DE69010341T priority patent/DE69010341T2/de
Publication of WO1991008682A1 publication Critical patent/WO1991008682A1/fr

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
    • A42B3/0406—Accessories for helmets
    • A42B3/0486—Airbags
    • 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
    • A42B3/121—Cushioning devices with at least one layer or pad containing a fluid
    • A42B3/122—Cushioning devices with at least one layer or pad containing a fluid inflatable

Definitions

  • Thi s invention re lates to a c rash he lmet of a type whi c h compri ses an i nf latable shockproo ing pad .
  • US Patent 3761959 discloses a crash helmet provided with a pad which can be inflated through a special valve adapted to be coupled to an external inflating arrangement. After putting the helmet on in a fully deflated condition, the helmet is then inflated to a desired pressure to be "felt" directly by the user on inflating.
  • Such a crash helmet performs well in sporting events of relatively short duration; in this instance, the user would adjust the helmet before the start of a race , usually with the assistance of specially appointed personnel.
  • a crash helmet is instead unsatisfactory, both it practically disallows adjustment of the pressure while in use, and because the pressure adjustment procedure becomes .quite complicated each time unless an assistant is available to operate the inflating arrangement.
  • US Patent 4035846 Another inflatable pad crash helmet is disclosed by US Patent 4035846.
  • the inside pressure is maintained at a preset value automatically by a valve, which would bleed air to the outside if the pressure is excessive and, when the pressure is too low, communicate to an external source of pressurized air to which the helmet is permanently connected.
  • This prior helmet has been designed for use by airplane pilots, and meets the (basic in that case) requirement of holding the helmet firmly at a fixed position relatively to the head; different applications would be dependent on the availability of an external source of pressurized air to which the helmet should be kept connected while in use.
  • the underlying problem of this invention is to provide a crash helmet of a type comprising an inflatable pad, which can be readily and advantageously used without requiring connection to any external arrangement.
  • a crash helmet which comprises a rigid sheet and a shockproofing pad including at least one deformable, inflatable bladder, and is characterized by that it comprises a pumping means mounted to the shesl for supplying air to the bladder interior, and a valve means active between said pumping means, said bladder, and the outside environment to selectively and alternatively enable the bladder to be shut off, air to be bled off the bladder to the outside environment or air to be pumped into the bladder by the pumping means.
  • Figure 1 is a side elevation view of a crash helmet according to the invention.
  • Figure 2 is a sectional view, drawn to an enlarged scale, of a detail of the helmet shown in Figure 1.
  • Figure 3 shows diagramatically a circuitry incorporated to the helmet shown in Figure 1.
  • a crash helmet of the so-called wrap-around type, having a rigid shsel 2 which is formed forwardly with an aperture 3 protected by a visor 4.
  • the helmet 1 includes a shockproofing pad 6 which has a deformable bladder 7 made preferably of polythene and traversing the interior of the siieel 2, e.g. into a dendriform pattern having branches 8. Necked-in portions 9 are formed along the branches 8. Air is contained within the bladder 7 together with an air-pervious, sponge-like matrix 12.
  • the helmet 1 also comprises a pressure adjusting means 15, associated with the bladder 7 to vary the air pressure within the bladder.
  • This pressure adjusting means 15 comprises a miniaturized arrangement including a diaphragm pump 16 driven by a permanent magnet, DC electric motor 17.
  • the motor 17 is to drive the pump 16 to force air into the bladder 7.
  • the pump 16 is connected to the bladder 7 via a solenoid type check valve 18, also of miniaturized construction.
  • the solenoid valve 18 will, in the rest condition thereof, ati ⁇ w air t ⁇ "' :ftow _ fr ⁇ rn ⁇ the' ' :p ⁇ mp _ 16?i ⁇ to the bladder 7 but not vice- versa.
  • the solenoid valve 18 When energized, the solenoid valve 18 will communicate the bladder 7 with the outside environment through a -bleed outlet 20.
  • the miniaturized assembly comprising the pump 16 and motor 17 is of a type known per se, e.g. Model NMP 085 (6 Volts DC) by KNF NEUBERGER, a German manufacturer, and known is per se the solenoid valve 18.
  • the bladder 7 is advantageously provided with a relief valve 23 discharging to the helmet outside.
  • the crash helmet 1 further comprises a power supply means 19.
  • This means comprises a line 29 led to a battery 22 housed in a special compartment 24 in the helmet 1.
  • the battery 22 is adapted to power the various components of the helmet 1 via an electrical box 30 secured laterally on the helmet 1.
  • the battery 22 generally comprises a set of batteries which may be of the re-chargeable type; provisions could also be made for connection to a solar battery to be mounted on the outer surface of the helmet 1.
  • the box 30 contains a storage unit 31 powered from the line 29.
  • the storage unit 31 can be input a reference pressure value by means of a pushbutton M. Using additional pushbuttons, marked “+” and “-”, gradual increases or decreases of the reference pressure value can be written in the memory.
  • a pushbutton T By means of a pushbutton T, a minimum pressure value can be stored whereat the bladder 7 would be set to such a condition as to allow the helmet to be taken off comfortably.
  • the air pressure inside the bladder 7 is sensed by a pressure transducer 33 arranged to face the bladder 7.
  • the box 30 also contains a comparator node 34 receiving, on a line 35 from the storage unit 31, the reference pressure value, and on a line 36 from the pressure transducer 33, the actual pressure value sensed, and issuing a difference signal.
  • This signal is supplied to a control means 37 via a line 38.
  • This control means is active between the line 29, on the one side, and the motor 17 and solenoid valve 18 on the other.
  • the control means 37 will cut off both the motor 17 and the solenoid valve 18.
  • the control means 37 wilt turn on the solenoid valve 18 to bleed off air from the bladder 7 to the outside. Should the comparator node 34 detect instead a lower actual pressure than the set pressure, then the control means 37 turn on the motor 17 to cause the pump 16 to force air into the bladder 7.
  • the crash helmet 1 also comprises a microswitch 39 so arranged as to be operated by the user's head on putting on- the helmet 1; the microswitch 39 will put the line 29 under power.
  • the crash helmet operation will be now described with reference to a starting condition whereby the helmet is to be worn and a generic pressure value is stored in the storage unit 31.
  • the pad 6 inside the helmet 1 is at ambient pressure.
  • the microswitch 39 is operated by the user's head to enable ' the power supply 19.
  • the electric current under "control by the control means 37 as driven by the difference between the pressure stored in the storage unit 31 and the actual inside pressure of the bladder 7 being sensed by the transducer 33, will energize the- motor 17 of the pump 16 until the actual pressure within the bladder 7 equals the stored pressure level.
  • the response time i.e. the time lapse from the occurrence of a pressure change within the bladder 7 and its correction
  • the response time is on the order of a few seconds, in actual practice. Consequently, in the event of impact forces acting on the helmet and the bladder 7 undergoing a pressure increase as a result, such a pressure increase would not be corrected because it is a nearly instantaneous one with a duration time on the order of a few m lliseconds, that is far shorter than the response time for correction. Accordingly, the pressure increase from the impact would be maintained in the helmet for a sufficient time to ensure that the desired shockproofing action is developed.
  • the relief valve 23 bleeds air off.
  • the helmet When the user wishes to take the helmet off, he/she depresses the pushbutton T to cause a minimum pressure to be set in the storage unit 31 and, hence, quick deflation of the bladder 7.
  • the helmet can be taken readily off the user's head.
  • a major advantage of a crash helmet according to the invention resides in its unique ability to fit around the user's head in a highly comfortable way.
  • the helmet can fit around the head with optimum pressure -of?choice by the " user.
  • a further advantage is that the comfortable fit can be maintained even with variations in the ambient and climatic conditions under which the helmet is used. In fact, the pressure level is monitored and adjusted continuously to keep it equal to the optimum value.
  • Another advantage of a crash helmet according to this invention is that it is fully self-sustained, it requiring no connections to any external arrangement.
  • a crash helmet according to the invention can be easily made to fit different size heads, thereby it can be put on sale as a single size, with attendant advantages of a practical nature.
  • Still another advantage of the inventive crash helmet is that it can be quickly taken off, either by the user in normal use, or by a possible rescue team with the user in an injured state.

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

Le casque protecteur décrit (1) comprend une pièce de tête rigide (2), un tampon résistant aux chocs (6) avec au moins une poche gonflable et déformable (7), une pompe à diaphragme (16) entraînée par un moteur électrique à pile (17) et montée sur la pièce de tête (2) de façon à forcer l'air à entrer dans la poche (7), ainsi qu'une soupape à solénoïde (18) disposée entre la pompe (16), la poche (7) et l'atmosphère extérieure, de façon à permettre sélectivement et alternativement l'obturation de la poche (7), l'évacuation de l'air contenu dans la poche (7) vers l'atmosphère extérieure ou le pompage de l'air dans la poche (7).
PCT/EP1990/002162 1989-12-19 1990-12-13 Casque protecteur avec tampon gonflable WO1991008682A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP91900219A EP0506696B1 (fr) 1989-12-19 1990-12-13 Casque protecteur avec tampon gonflable
DE69010341T DE69010341T2 (de) 1989-12-19 1990-12-13 Sturzhelm mit aufblasbarem luftkissen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT22735-A/89 1989-12-19
IT02273589A IT1236889B (it) 1989-12-19 1989-12-19 Casco con imbottitura gonfiabile

Publications (1)

Publication Number Publication Date
WO1991008682A1 true WO1991008682A1 (fr) 1991-06-27

Family

ID=11199832

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/002162 WO1991008682A1 (fr) 1989-12-19 1990-12-13 Casque protecteur avec tampon gonflable

Country Status (5)

Country Link
EP (1) EP0506696B1 (fr)
AU (1) AU6899391A (fr)
DE (1) DE69010341T2 (fr)
IT (1) IT1236889B (fr)
WO (1) WO1991008682A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993001732A1 (fr) * 1991-07-19 1993-02-04 Frank Anthony Matich Systeme de fixation pour casque
DE4241951A1 (de) * 1992-12-12 1994-06-16 Erwin Rose Paßpolster für Helme o. dgl.
WO1996002402A1 (fr) * 1994-07-15 1996-02-01 Parrish Milton E Systeme de support conformable multicouche
WO2001084989A1 (fr) * 2000-05-11 2001-11-15 Empa Eidgenoessische Materialpruefungs- Und Forschungsanstalt Dispositif d"isolation thermique en surface, en particulier pour le corps humain
US20130125296A1 (en) * 2011-11-23 2013-05-23 Noam Rabinovitch Protective head gear with moveable members
US20170325533A1 (en) * 2015-03-19 2017-11-16 Elwha Llc Helmet airbag system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19904355A1 (de) * 1999-02-04 2000-08-24 Moeller Gmbh Leistungsschalter und Verfahren zu seiner Herstellung
EP1562459B1 (fr) 2002-11-18 2007-06-06 CHAFFEE, Robert B. Dispositif gonflable
CA2648001C (fr) 2006-04-04 2014-12-09 Robert B. Chaffee Procede et appareil permettant de surveiller et regler la pression dans un dispositif gonflable
CA2718203C (fr) 2008-03-13 2019-04-23 Robert B. Chaffee Procede et appareil pour surveiller et reguler la pression dans un dispositif gonflable
US8127373B1 (en) 2011-07-22 2012-03-06 Troy Allen Fodemski Protective helmet having a microprocessor controlled response to impact
WO2018148753A1 (fr) 2017-02-13 2018-08-16 The Board Of Trustees Of The Leland Stanford Junior University Dispositif de protection contre les chocs à force constante

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7729063U1 (de) * 1977-09-20 1977-12-29 Schuberth-Werk, 3300 Braunschweig Schutzhelm
US4130803A (en) * 1977-05-04 1978-12-19 Thompson Kenneth L Radio equipped protective helmet
GB2046080A (en) * 1979-03-28 1980-11-12 Roberts J A Protective head-gear
EP0088344A2 (fr) * 1982-03-08 1983-09-14 Lino Fantin Dispositif actionné électriquement pour soulever et abaisser la visiére d'un casque de protection
WO1984000480A1 (fr) * 1982-08-05 1984-02-16 Mckool Inc Casque de motocyclette a refroidissement thermo-electrique
EP0332925A1 (fr) * 1988-03-14 1989-09-20 VELA S.r.L. Elément de rembourrage pour la protection contre les chocs, destiné en particulier à un casque anticollision

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130803A (en) * 1977-05-04 1978-12-19 Thompson Kenneth L Radio equipped protective helmet
DE7729063U1 (de) * 1977-09-20 1977-12-29 Schuberth-Werk, 3300 Braunschweig Schutzhelm
GB2046080A (en) * 1979-03-28 1980-11-12 Roberts J A Protective head-gear
EP0088344A2 (fr) * 1982-03-08 1983-09-14 Lino Fantin Dispositif actionné électriquement pour soulever et abaisser la visiére d'un casque de protection
WO1984000480A1 (fr) * 1982-08-05 1984-02-16 Mckool Inc Casque de motocyclette a refroidissement thermo-electrique
EP0332925A1 (fr) * 1988-03-14 1989-09-20 VELA S.r.L. Elément de rembourrage pour la protection contre les chocs, destiné en particulier à un casque anticollision

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993001732A1 (fr) * 1991-07-19 1993-02-04 Frank Anthony Matich Systeme de fixation pour casque
DE4241951A1 (de) * 1992-12-12 1994-06-16 Erwin Rose Paßpolster für Helme o. dgl.
WO1996002402A1 (fr) * 1994-07-15 1996-02-01 Parrish Milton E Systeme de support conformable multicouche
US5556169A (en) * 1994-07-15 1996-09-17 Parrish; Milton E. Multi-layer conformable support system
WO2001084989A1 (fr) * 2000-05-11 2001-11-15 Empa Eidgenoessische Materialpruefungs- Und Forschungsanstalt Dispositif d"isolation thermique en surface, en particulier pour le corps humain
US20130125296A1 (en) * 2011-11-23 2013-05-23 Noam Rabinovitch Protective head gear with moveable members
US9307801B2 (en) * 2011-11-23 2016-04-12 Noam Rabinovitch Protective head gear with moveable members
US10426214B2 (en) 2011-11-23 2019-10-01 Noam Rabinovitch Protective head gear with moveable members
US20170325533A1 (en) * 2015-03-19 2017-11-16 Elwha Llc Helmet airbag system

Also Published As

Publication number Publication date
IT8922735A0 (it) 1989-12-19
IT1236889B (it) 1993-04-26
EP0506696B1 (fr) 1994-06-29
IT8922735A1 (it) 1991-06-19
DE69010341T2 (de) 1994-10-13
AU6899391A (en) 1991-07-18
EP0506696A1 (fr) 1992-10-07
DE69010341D1 (de) 1994-08-04

Similar Documents

Publication Publication Date Title
EP0506696B1 (fr) Casque protecteur avec tampon gonflable
US9731801B2 (en) Airbag rescue system
JP3824640B2 (ja) 空気ベッド用の改良された空気圧制御システム
US5325551A (en) Mattress for retarding development of decubitus ulcers
ZA884621B (en) Central tire inflation system
WO2002040081A3 (fr) Dispositif de type ballonnet intragastrique conçu pour voir varier son volume de façon iterative sans assistance exterieure
US4583305A (en) Ski boot
WO2018166061A1 (fr) Chaussure de ski
US20070093718A1 (en) Modular blood pressure measurement apparatus
CN217238526U (zh) 头戴显示设备
CN216908509U (zh) 一种可充气式压力监测俯卧位头垫
CN111358248A (zh) 一种智能枕头以及其使用方法
CN215458353U (zh) 一种经口腔前庭腔镜甲状腺手术充气下颌托
CN219492516U (zh) 电动充气泵
US20110091850A1 (en) Vision application training device
CN118044943A (zh) 一种眼部加压装置及系统
EP0243265B1 (fr) Sphygmomanomètre électronique
JP3445846B2 (ja) 血行促進器
JP2002065433A (ja) 高さ・形状可変式安眠枕とその使用準備方法
KR200182361Y1 (ko) 타이어 공기압 자동조절장치
JPS62137054A (ja) エア−クツシヨン付振動マツサ−ジ機
JP2004057505A (ja) 枕装置及び寝具装置
US6279947B1 (en) Heater for air bag inflator
CN114983395A (zh) 体征监测器位置调节方法、头戴显示设备及存储介质
WO2022013591A1 (fr) Unité électronique d'actionnement de système de sécurité

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR CA CH DE DK ES FI GB HU JP KP KR LK LU MC MG MW NL NO RO SD SE SU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE BF BJ CF CG CH CM DE DK ES FR GA GB GR IT LU ML MR NL SE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 1991900219

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 1991900219

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: CA

WWG Wipo information: grant in national office

Ref document number: 1991900219

Country of ref document: EP