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EP0558175A1 - Dispositif pour monter une visière - Google Patents

Dispositif pour monter une visière Download PDF

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Publication number
EP0558175A1
EP0558175A1 EP93300184A EP93300184A EP0558175A1 EP 0558175 A1 EP0558175 A1 EP 0558175A1 EP 93300184 A EP93300184 A EP 93300184A EP 93300184 A EP93300184 A EP 93300184A EP 0558175 A1 EP0558175 A1 EP 0558175A1
Authority
EP
European Patent Office
Prior art keywords
visor
assembly
cam
wearer
head
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Withdrawn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
EP93300184A
Other languages
German (de)
English (en)
Inventor
David Ayres
Bernard Carl Reilly
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
Publication of EP0558175A1 publication Critical patent/EP0558175A1/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Withdrawn legal-status Critical Current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
    • A42B3/28—Ventilating arrangements
    • A42B3/288—Ventilating arrangements with means for attaching respirators or breathing masks
    • 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
    • A42B3/18—Face protection devices
    • A42B3/22—Visors
    • A42B3/225—Visors with full face protection, e.g. for industrial safety applications

Definitions

  • the present invention relates to a visor assembly embodying a visor and a helmet or other form of head-engaging means.
  • a visor assembly to protect the eyes of an arc-welder for example, is well known.
  • This type of visor assembly consists of an adjustable head band for placing over the welders head to which the visor is pivotally mounted for movement between an operative position in which the welder can view his work through the visor and a raised or inoperative position in which the visor is pivoted out of the welders line of sight.
  • Visors are used also to protect a wearer against dust and vapour such as styrene particles and isocyanate or alcohol-based paints.
  • This type of visor however is normally incorporated into a head shield or face mask and separate protective clothing is worn which includes a hood.
  • a visor assembly comprising head-engaging means to which a visor is removably secured, generally L-shaped cam track means on said visor in which cam follower means on the head-engaging means is received, the visor being movable by a wearer between an operative position in which the visor lies in the wearers line of sight and covers his face and an inoperative position in which the visor is displaced from the wearer's line of sight and uncovers his face, movement of the visor from the operative position being achieved by the wearer first lifting and then tilting the visor relative to the head-engaging means enabling the cam follower means to follow the cam track means.
  • the cam track and cam follower means consist of a pair of cam tracks formed in respective side panels of the visor and a pair of fixed cam followers carried by the head-engaging means with one follower received in each cam track.
  • Each cam follower may be in two parts which are spaced apart.
  • each cam track includes three sections, the first of which is rectilinear to enable the visor to be lifted vertically by a wearer, the second of which is curved to enable the visor to be tilted relative to the head-engaging means and the third of which is also rectilinear to enable the visor to be retained in its lifted and tilted condition.
  • the head-engaging means is a plastics helmet having a chin strap for removable connection below a wearers chin, with two fixed cams secured to the helmet one at each position corresponding approximately to the wearers ears.
  • the visor includes a transparent viewing panel which covers the wearers face, this being secured between two side panels and a top, with a cam track formed or cut in each side panel.
  • the visor is of plastics construction but could be of metal or glass fibre for example. Alternatively again, the visor may be moulded integrally.
  • a seal is provided between the helmet and visor when the visor is in its operative position to prevent dust, vapour or contaminated air from entering the visor assembly from behind, more particularly between the top of the helmet and the inner top of the visor.
  • an air stream is downwardly directed across the inner surface of the visor when the visor is in its operative position so that the air stream passes between the wearers face and the visor.
  • air is delivered to the visor in a flexible plastics pipe which is continuous into the visor assembly with the pipe being secured around the front edge of the helmet.
  • the part of the pipe secured to the helmet includes a plurality of spaced apertures through which air is directed on to the visor.
  • one or more slits or other form of elongate opening may be provided in the flexible pipe at a position within the helmet.
  • Compressed air may be provided from a compressor via a filter and regulator.
  • air supplied to the helmet assembly may be regulated within a given range, 20-30 psi, the preferred pressure being 25 psi.
  • the visor assembly illustrated in the drawings consists of a helmet 10 to which a visor 12 is removably connected.
  • the helmet is of moulded plastics and has fixed cam followers 14 mounted one on either side thereof at a position corresponding approximately to that of a wearers ear.
  • the cam followers illustrated are each in two spaced apart pairs.
  • a flexible plastics pipe 16 supplies air to the visor assembly the pipe terminating in a region having a plurality of apertures 18, the apertured part of the pipe being secured by fasteners 20 to the open margin of the helmet 10.
  • the visor 12 is in four parts which are secured together, the front panel 22 being of transparent plastics and forming a viewing panel which covers the wearers face and perhaps the upper part of his neck.
  • Two side panels 24 are provided each of which is sealingly connected to one side of the front panel 22.
  • a cover 26 bridges the visor and sealingly connects all four component parts together.
  • a foam seal 28 seals the visor viewing panel 22 to the front of the helmet so that dust or vapour cannot enter the rear of the visor assembly between the top of the helmet and the inner side of the visor.
  • the side panels 24 on either side of the visor each include a generally L-shaped cam track which is generally designated 30.
  • the cam track 30 is in three sections, a first straight section 32, a curved section 34 at the bend in the L and a further straight section 36. As can be seen from the drawings the angle between the sections 32 and 36 is slightly less than 90°.
  • the respective cam followers 14 are received within the cam tracks and a snap-on cover 38 covers each fixed cam follower.
  • air from a compressor is introduced in to the plastics pipe 16, conveniently from a fixed position in a workshop for example.
  • the air is filtered and regulated to a pressure of approximately 25 psi.
  • Air issues through each of the orifices 18 to form a downwardly-directed curtain of air between the wearers face and the inner surface of the visor viewing panel 22. In this way, dust or vapour is prevented from coming into contact with the wearers face from the bottom of the visor assembly.

Landscapes

  • Helmets And Other Head Coverings (AREA)
EP93300184A 1992-01-15 1993-01-13 Dispositif pour monter une visière Withdrawn EP0558175A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9200833 1992-01-15
GB929200833A GB9200833D0 (en) 1992-01-15 1992-01-15 Visor assembly

Publications (1)

Publication Number Publication Date
EP0558175A1 true EP0558175A1 (fr) 1993-09-01

Family

ID=10708644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93300184A Withdrawn EP0558175A1 (fr) 1992-01-15 1993-01-13 Dispositif pour monter une visière

Country Status (2)

Country Link
EP (1) EP0558175A1 (fr)
GB (1) GB9200833D0 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320414B (en) * 1995-11-30 2000-02-23 David Winstone Aitken Bennett A safety helmet and method of manufacture
WO2002030227A1 (fr) * 2000-10-11 2002-04-18 The Secretary Of State For Defence Dispositifs de protection oculaire
US6931670B2 (en) * 2002-07-30 2005-08-23 Michio Arai Turning opening or closing member supporting structure of helmet
US7829049B2 (en) 2005-07-18 2010-11-09 Union Engineering A/S Method for recovery of high purity carbon dioxide from a gaseous source comprising nitrogen compounds

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL49498C (fr) * 1900-01-01
US3137295A (en) * 1960-12-27 1964-06-16 Lockheed Aircraft Corp Fresh air face seal
FR2109042A5 (fr) * 1970-06-16 1972-05-26 Silor
US3727235A (en) * 1972-01-13 1973-04-17 Ilc Ind Inc Retractable face protective assembly
GB2002626A (en) * 1977-08-17 1979-02-28 British Steel Corp Safety helmet visor
FR2449418A1 (fr) * 1979-02-26 1980-09-19 Kangol Helmets Ltd Casque a visiere pivotante
FR2541874A1 (fr) * 1983-03-01 1984-09-07 Gallet Fils Ets Jean Mecanisme de liaison entre l'ecran et la calotte d'un casque de protection
EP0147313A2 (fr) * 1983-12-27 1985-07-03 Commissariat A L'energie Atomique Heaume ergonomique
WO1987004323A1 (fr) * 1986-01-21 1987-07-30 Demir, Jocelyne Systeme aerodynamique et antibuee de coque et d'ecran de vision d'un casque de protection

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL49498C (fr) * 1900-01-01
US3137295A (en) * 1960-12-27 1964-06-16 Lockheed Aircraft Corp Fresh air face seal
FR2109042A5 (fr) * 1970-06-16 1972-05-26 Silor
US3727235A (en) * 1972-01-13 1973-04-17 Ilc Ind Inc Retractable face protective assembly
GB2002626A (en) * 1977-08-17 1979-02-28 British Steel Corp Safety helmet visor
FR2449418A1 (fr) * 1979-02-26 1980-09-19 Kangol Helmets Ltd Casque a visiere pivotante
FR2541874A1 (fr) * 1983-03-01 1984-09-07 Gallet Fils Ets Jean Mecanisme de liaison entre l'ecran et la calotte d'un casque de protection
EP0147313A2 (fr) * 1983-12-27 1985-07-03 Commissariat A L'energie Atomique Heaume ergonomique
WO1987004323A1 (fr) * 1986-01-21 1987-07-30 Demir, Jocelyne Systeme aerodynamique et antibuee de coque et d'ecran de vision d'un casque de protection

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320414B (en) * 1995-11-30 2000-02-23 David Winstone Aitken Bennett A safety helmet and method of manufacture
WO2002030227A1 (fr) * 2000-10-11 2002-04-18 The Secretary Of State For Defence Dispositifs de protection oculaire
US6931670B2 (en) * 2002-07-30 2005-08-23 Michio Arai Turning opening or closing member supporting structure of helmet
US7829049B2 (en) 2005-07-18 2010-11-09 Union Engineering A/S Method for recovery of high purity carbon dioxide from a gaseous source comprising nitrogen compounds

Also Published As

Publication number Publication date
GB9200833D0 (en) 1992-03-11

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