EP3827683A1 - Système de protection de la tête - Google Patents

Système de protection de la tête Download PDF

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Publication number
EP3827683A1
EP3827683A1 EP20207685.7A EP20207685A EP3827683A1 EP 3827683 A1 EP3827683 A1 EP 3827683A1 EP 20207685 A EP20207685 A EP 20207685A EP 3827683 A1 EP3827683 A1 EP 3827683A1
Authority
EP
European Patent Office
Prior art keywords
fastening
head
protective helmet
openings
helmet
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
EP20207685.7A
Other languages
German (de)
English (en)
Other versions
EP3827683B1 (fr
Inventor
Steffen Pracht
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.)
Draeger Safety AG and Co KGaA
Original Assignee
Draeger Safety AG and Co KGaA
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 Draeger Safety AG and Co KGaA filed Critical Draeger Safety AG and Co KGaA
Publication of EP3827683A1 publication Critical patent/EP3827683A1/fr
Application granted granted Critical
Publication of EP3827683B1 publication Critical patent/EP3827683B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A42B3/10—Linings
    • A42B3/105—Linings with additional protection for the neck
    • 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
    • A42B3/14—Suspension devices
    • A42B3/142—Suspension devices with restraining or stabilizing means, e.g. nape straps
    • 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
    • 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
    • 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
    • A42B3/281—Air ducting systems
    • A42B3/283—Air inlets or outlets, with or without closure shutters
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B7/00—Fastening means for head coverings; Elastic cords; Ladies' hat fasteners
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
    • A62B17/003—Fire-resistant or fire-fighters' clothes

Definitions

  • the invention relates to a head protection system with a protective helmet and a fire protection cloth.
  • a fire protection cloth in the area of the neck in addition to a fire helmet to protect against hot materials, radiant heat and flames.
  • a special form of such a fire protection cloth also called Dutch cloth or integral cloth, also protects sensitive areas such as the forehead, parts of the face and the front and side neck. In combination with a respirator, this can provide a fully encompassing head protection for a firefighter.
  • EP 1 885 209 B1 describes an integral cloth that can be connected to a safety helmet by means of two brackets made of elastically deformable material via hooking means.
  • the object of the present invention is to enable an improved head protection system, in particular a head protection system with a high level of comfort and a high degree of safety for the wearer of the head protection system.
  • a head protection system with a protective helmet and a fire protection cloth is proposed to achieve this object.
  • the protective helmet has a helmet shell and a holding device for ensuring a distance between an inside of the helmet shell and a head of a wearer of the protective helmet in the worn state of the protective helmet. Due to the distance between the inside of the helmet shell and the head of the wearer, there is an airway between the protective helmet and head, the airway being partially formed by a plurality of openings in a fastening ring, and the fastening ring in the worn state of the protective helmet at least in the area of the forehead of the carrier is arranged.
  • the fire protection cloth has a fastening tape, the fastening tape having a plurality of rigid fastening elements which are each designed to engage in a respective opening in the fastening ring and thereby releasably fasten the fire protection cloth to the protective helmet.
  • the plurality of rigid fastening elements in the fastened state fills the plurality of openings in such a way that the airway is closed by the plurality of openings.
  • the fire protection cloth in addition to the known protective functions for the head, can close openings for ventilation on the helmet shell.
  • the head protection system according to the invention thus advantageously enables particularly good ventilation of the head of a wearer of the protective helmet via the airway provided as long as no fire protection cloth is attached to the protective helmet. Furthermore, the head protection system according to the invention enables the head to be reliably protected from hot ambient air by means of a protective helmet and fire protection cloth due to the closure of the plurality of openings and the at least partial closure of the airway made possible thereby.
  • the head protection system according to the invention advantageously has coordinated components, namely the fastening ring of the Protective helmet and the fastening tape of the fire protection cloth. According to the invention, these two components interact in that fastening the fire protection cloth to the fastening ring via the fastening tape results in the airway being closed through the plurality of openings.
  • closing the openings means that these openings are essentially closed to the airway.
  • the air path can also be formed via other paths on the inside of the helmet shell, so that the closing of the plurality of openings leads to an at least partial reduction of air within the air path.
  • the protective helmet according to the invention is in particular a fire helmet.
  • the advantages of the invention are particularly relevant for the use of the head protection system in areas with hot ambient air, that is, in particular for use in the context of fire-fighting activities.
  • the airway is formed, inter alia, by the plurality of openings in the fastening ring.
  • the airway preferably consists of a plurality of airway areas, each opening being assigned an airway area.
  • the plurality of airway areas can be designed to be contiguous or non-contiguous.
  • further components of the fastening tape and / or the fastening ring can be provided in order to enable the fastening tape to be reliably fastened to the fastening ring.
  • a rigid fastening element is a fastening means which, due to its rigid structure, is suitable for closing a respective opening while it is fastened in the region of the openings.
  • the rigid fastening element can, when the fire protection cloth is fastened to the protective helmet, directly in front of a respective opening be arranged and contribute to the fastening of the fastening tape to the protective helmet due to a tension force acting on the fastening tape.
  • the rigid fastening elements are typically supplemented by further components of the fastening tape and / or the fastening ring, which also contribute to a reliable fastening of the fastening tape to the fastening ring.
  • the fastening ring can also be formed exclusively in the area of the wearer's forehead, in which case a further fastening part is typically provided on the protective helmet in the area of the back of the wearer's head in order to ensure stable attachment of the fire protection cloth to the protective helmet.
  • the fastening ring can be designed in several parts.
  • the holding device within the protective helmet according to the invention is typically formed by a hair net and / or a suitable strap on the inside of the helmet shell.
  • Corresponding holding devices have been known for many types of helmets for a long time and are therefore not explained in detail below.
  • Filling an opening with a fastening element can be achieved, for example, by covering the opening with the fastening element or by passing the fastening element through the opening.
  • the fastening tape is made from a plastic.
  • a plastic is typically easy to process.
  • the fastening tape can be produced particularly inexpensively in this embodiment.
  • the fastening tape is preferably a non-stretchable fastening tape, in particular a substantially rigid fastening tape.
  • the essentially rigid fastening strap can indeed be bent when the fire protection cloth is being folded up However, it cannot be stretched in the lateral direction, that is to say in the direction of extent of the fastening tape.
  • the protective helmet also has a damping element arranged on the inside of the helmet shell.
  • the fastening ring is arranged on the damping element. Due to the structure proposed in this variant, the openings of the fastening ring advantageously lead under the damping element and thus into the airway between the inside of the helmet shell and the head of the wearer.
  • the fastening ring has at least 4 openings, in particular at least 6 openings. This enables particularly good ventilation of the head in the event that the fire protection cloth is not attached.
  • the fastening strap of the fire protection cloth is to be fastened to the fastening ring of the protective helmet via a latching mechanism.
  • a latching mechanism is an at least positive connection, preferably a positive and non-positive connection.
  • the latching mechanism is formed by the rigid fastening elements of the fastening tape and by the fastening ring to which the fastening tape is to be detachably fastened.
  • the fastening band is additionally fastened to the fastening ring via a further fastening mechanism.
  • the further fastening mechanism is, for example, a push-button mechanism, an at least non-positive locking mechanism and / or a click connection.
  • the fastening elements form teeth on the fastening band.
  • a particularly stable fastening of the fastening band to the fastening ring can be made possible via such a toothing.
  • enables such a Teeth a particularly uniform fastening of the fastening tape to the fastening ring and therefore also a uniform force distribution when a tensile force acting on the fire protection cloth.
  • the fastening elements of the fastening tape are essentially rectangular.
  • the fastening elements are oval, triangular and / or semicircular.
  • the opening assigned to a respective fastening element from the plurality of openings is also advantageously designed to be essentially rectangular, oval, triangular and / or semicircular. In this way, the respective fastening element can reliably close the respective opening from the plurality of openings.
  • the shapes of the openings according to this embodiment allow large openings compared to concave shapes, so that particularly good ventilation of the head is possible in the event of a fire protection cloth not attached to the protective helmet.
  • the fastening elements and / or the openings have different shapes from one another. In this way, depending on the shape of the protective helmet, a particularly effective airway, in particular an airway with particularly good ventilation of the head, can be provided.
  • the fire protection cloth is a Dutch cloth.
  • the head of the wearer of the head protection system can be protected particularly effectively from flames and hot ambient air.
  • the protective helmet is designed in such a way that the airway between the protective helmet and the head is completely closed when the fire protection cloth is attached. In this way, it can be ensured in a particularly reliable manner that in the case of a fire protection cloth attached to the protective helmet, almost no hot ambient air can penetrate through the openings to the inside of the helmet shell.
  • the protective helmet is a fire helmet.
  • the fastening tape comprises, in addition to the plurality of rigid fastening elements, a plurality of fastening parts which are designed to detachably fasten the fire protection cloth to the protective helmet.
  • the plurality of fastening parts preferably forms a robust, reliable fastening, which is merely supplemented by the plurality of rigid fastening elements.
  • the plurality of fastening parts is preferably not formed in the immediate vicinity of the plurality of openings. As a result, fastening via the fastening parts can be particularly reliable.
  • the fastening via the fastening parts requires corresponding fastening areas on the fastening ring.
  • a corresponding fastening part and a corresponding fastening area are matched to one another in such a way that a form-fitting connection, preferably a form-fitting and / or force-fitting connection, is possible between the fastening part and the fastening area.
  • the plurality of rigid fastening elements enables a particularly simple and suitable arrangement of the fire protection cloth on the protective helmet, but only the majority of fastening parts effectively fasten the fire protection cloth to the protective helmet when tensile forces occur.
  • the plurality of rigid fastening elements preferably allows the position of the fire protection cloth to be secured relative to the protective helmet when transverse forces occur. Lateral forces are forces with a component in the direction of the lateral extension of the fastening tape.
  • the fastening strap is preferably made in one piece, in particular made in one piece from a plastic.
  • the fastening strap is made in two parts, in particular made in two parts from a plastic. Providing two parts advantageously enables the fire protection cloth to be adapted to different head sizes.
  • Fig. 1 shows a schematic representation of a protective helmet 100 according to a first embodiment of a head protection system according to the invention.
  • the protective helmet 100 has a helmet shell 105 and a holding device 108 for ensuring a distance between an inner side 106 of the helmet shell 105 and a head 102 of a wearer of the protective helmet 100 when the protective helmet 100 is worn.
  • the outer side 107 of the helmet shell 105 is designed without any openings, to ensure a protective function against hot materials, hot ambient air and flames. Due to the distance A between the inside 106 of the helmet shell 105 and the head 102 of the wearer, an airway 110 results between the protective helmet 100 and the head 102.
  • This airway 110 is partially formed by a plurality of openings 120 in a fastening ring 125 can be designed differently depending on the thermal environmental conditions.
  • the airway 110 leads through the holding device 108 formed by a suitable strap and is only partially delimited by the plurality of openings 120.
  • the air path in the area of the forehead of the head 102 is not limited exclusively by the fastening ring 125, so that the air can freely exit from the air path 110 on the forehead.
  • the fastening ring 125 is arranged at least in the region of the forehead of the wearer.
  • the fastening ring 125 is formed only in the area of the forehead and is arranged on a damping element 112 which is fastened to the inside 106 of the helmet shell 105.
  • the fastening ring 125 is glued to the damping element 112.
  • the fastening ring is fastened to the damping element or directly to the helmet shell in a force-fitting and / or form-fitting manner.
  • the openings 120 from the plurality of openings are rectangular in shape in the exemplary embodiment shown.
  • a respective opening has a width B1 of at least 0.3 cm, in particular at least 0.5 cm, particularly preferably at least 1 cm.
  • a respective opening has a height H1 of at least 0.3 cm, in particular at least 0.5 cm, particularly preferably at least 1 cm.
  • a spacer element 114 is arranged on the helmet shell 105 in the area of the back of the head, which ensures that the helmet shell 105 does not strike the head 102 of the wearer of the protective helmet 100 in this area.
  • the illustrated distance A is the smallest distance between the inside 106 of the helmet shell 105 and the head 102. In the illustrated embodiment, the distance A is at least 0.3 cm, in particular at least 0.7 cm, particularly preferably at least 1.3 cm.
  • the head protection system in the state shown is worn without a fire protection cloth if the wearer currently does not want to protect himself from hot ambient air and is therefore interested in an air flow through the airway 110.
  • Such an air flow can, for example, carry away heat accumulating on the inside 106 of the helmet shell 105 away from the wearer.
  • the air flow can cause cooling of the head 102 of the wearer.
  • Fig. 2 shows a schematic representation of a fire protection cloth 200 according to the first embodiment of the head protection system according to the invention.
  • the fire protection cloth 200 has a fastening tape 230.
  • the fastening strap 230 is rigid.
  • the fastening tape 230 is rigid in that it cannot be stretched in the lateral direction, that is to say in the direction of the extension of the fastening tape 230.
  • the fastening strap 230 is made of a plastic and can be bent in the transverse direction. Such a bending is advantageous in order not to take up too much space when the fire protection cloth 200 is stored and nevertheless to be attachable to a protective helmet.
  • the fastening strap 230 has a plurality of rigid fastening elements 235, each of which is designed to engage in a respective opening 120 of the fastening ring 125 and thereby detachably fasten the fire protection cloth 200 to the protective helmet 100.
  • the fastening elements 235 have a respective projection 237, via which a respective fastening element 235 can be fastened to a respective opening 120.
  • the fastening band 230 in the illustrated embodiment is made in one piece, the two ends being arranged in the area of the forehead of the head 120.
  • recesses 240 are arranged in the fire protection cloth 200 for the face of the wearer in opposite edge regions of the actual textile part 250 of the fire protection cloth 200.
  • the fastening tape 230 is sewn onto the textile part 250.
  • the fastening tape is connected to the textile part by means of an adhesive.
  • the plurality of rigid fastening elements 235 is matched to the structure of the protective helmet 100 in such a way that, in the fastened state, the plurality of openings 120 are filled by the fastening elements 235 in such a way that the airway is closed by the plurality of openings.
  • the fastening strap 230 comprises exactly four rigid fastening elements 235.
  • the head protection system comprises more than four openings, in particular at least six openings and a corresponding number of rigid fastening elements.
  • the rigid fastening elements 235 in the exemplary embodiment shown are essentially rectangular and are therefore particularly suitable for filling the corresponding, essentially rectangular openings 120 on the fastening ring 125.
  • a filling takes place by passing a respective fastening element 235 through an opening 120 provided for this purpose and correspondingly engaging the fastening element 235 in this opening 120 through the corresponding projection 237 a width B2 of at least 0.3 cm, in particular at least 0.5 cm, particularly preferably at least 1 cm.
  • the respective essentially rectangular rigid fastening element 235 has a height H2 of at least 0.3 cm, in particular at least 0.5 cm, particularly preferably at least 1 cm.
  • the fastening tape 230 is at least 1 mm, in particular at least 1.5 mm thick.
  • the hard hat 100 and the fire protection cloth 200 off Fig. 1 and Fig. 2 are matched to one another and form a common head protection system according to the invention.
  • the illustrated embodiments show the protective helmet and fire protection cloth in a mutually attached state, with a front area of the corresponding helmet shell of the protective helmet being shown foreshortened in order to be able to represent the attachment of the respective fire protection cloth to the respective protective helmet and the position of the plurality of openings.
  • Fig. 3 shows a schematic representation of a second exemplary embodiment of the head protection system 300 according to the invention.
  • the head protection system 300 differs from that in Fig. 1 and Fig. 2 Head protection system shown in that the textile part 350 of the fire protection cloth 360 is closed in the form of a hose around the head and the fastening strap 330 is therefore a closed ring.
  • the fastening tape is an open tape which can be connected to a ring shape via a connecting piece, for example by a Velcro connection, a clamp connection, a zipper or another suitable form-fitting and / or force-fitting connection.
  • Fig. 4 shows a schematic representation of a third exemplary embodiment of the head protection system 400 according to the invention.
  • the head protection system 400 differs from that in Fig. 3 head protection system 300 shown, the rigid fastening elements 435 are round, in particular semicircular. Furthermore, the fire protection cloth 460 has exactly three rigid fastening elements 435. The plurality of openings 420 are semicircular in shape corresponding to the rigid fastening elements 435.
  • the fastening strap 430 of the fire protection cloth 460 is fastened to the fastening ring 425 of the protective helmet 470 via a snap-in mechanism.
  • the locking mechanism is formed by the combination of rigid fasteners 435 and the corresponding openings 420.
  • the latching takes place via the projections (not shown) which are respectively arranged on the three rigid fastening elements 435. This creates a form-fitting connection and, at the same time, a force-fitting connection between the fire protection cloth 460 and the protective helmet 470.
  • the head protection system 400 differs from that in Fig. 3 head protection system 300 shown in that, in addition to the fastening via the rigid fastening elements, a plurality of fastening parts 480 are arranged on the fire protection cloth 460, via which the fire protection cloth 460 is also detachably connected to the protective helmet 470.
  • the plurality of fastening parts 480 comprises two fastening parts which are pressed from the inside 406 of the helmet shell 405 against the fastening ring 425 in order to form a detachable connection between the fire protection cloth 460 and the protective helmet 470 with correspondingly designed counter parts 485 of the fastening ring 425.
  • the fire protection cloth 460 is connected to the protective helmet 470 in a particularly reliable and safe manner.
  • Fig. 5 shows a schematic representation of a fourth exemplary embodiment of the head protection system 500 according to the invention.
  • the head protection system 500 differs from that in Fig. 3 head protection system 300 shown in that the fire protection cloth 560 is fastened in the fastened state on the side of the fastening ring 525 facing away from the head of the wearer.
  • the rigid fastening elements 535 of the fastening band 530 are not pushed through a respective opening of the fastening ring 525, as in the previous exemplary embodiments.
  • the rigid fastening elements 535 are held on the fastening ring 525 via a respective rail 590.
  • corresponding fastening parts 580 have projections which are pressed and / or inserted in the direction of the head by corresponding counter parts (not shown) of the fastening ring 525.
  • Other known plug-in connections, clamping connections or connections implemented by means of a snap-in connection can also be used as an additional connection for attaching the fire protection cloth 560 to the protective helmet 570.
  • the plurality of openings 520 are completely closed in the fastened state of the fire protection cloth 560.
  • the closing of the plurality of openings 520 according to the invention completely closes the airway between the protective helmet 570 and the head. This is also achieved by the textile part 550 of the fire protection cloth 560, which lies against the head of the wearer in the area of the forehead.
  • the openings were also completely closed by the fastening elements.
  • a respective opening of the fastening ring is only partially closed by the corresponding fastening element.
  • the shape of the plurality of openings 520 and the shape of the rigid fastening elements 535 do not match.
  • the rigid fasteners 535 are rectangular in shape and the plurality of openings 520 are oval in shape. In this way, in the exemplary embodiment shown, a particularly secure closing of the openings 520 by the rigid fastening elements 535 can be made possible.

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  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Helmets And Other Head Coverings (AREA)
EP20207685.7A 2019-11-20 2020-11-16 Système de protection de la tête Active EP3827683B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019008043.2A DE102019008043A1 (de) 2019-11-20 2019-11-20 Kopfschutzsystem

Publications (2)

Publication Number Publication Date
EP3827683A1 true EP3827683A1 (fr) 2021-06-02
EP3827683B1 EP3827683B1 (fr) 2023-08-30

Family

ID=73452007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20207685.7A Active EP3827683B1 (fr) 2019-11-20 2020-11-16 Système de protection de la tête

Country Status (5)

Country Link
US (1) US11666111B2 (fr)
EP (1) EP3827683B1 (fr)
CN (1) CN112823685B (fr)
AU (1) AU2020264328B2 (fr)
DE (1) DE102019008043A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8714490U1 (de) * 1987-10-30 1988-09-22 Allit-Plastic-Werk Kimnach GmbH & Co, 55545 Bad Kreuznach Schutzhelm
EP1885209B1 (fr) 2005-06-03 2010-09-01 MSA Gallet Casque de protection comprenant un dispositif de fixation d'un element de protection
KR100989524B1 (ko) * 2010-03-19 2010-10-25 주식회사 산청 보호용 헬멧

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755085A1 (de) * 1997-12-11 1999-06-24 Klaus O Dr Ing Paulus Kopfbedeckung
US6766534B2 (en) * 2002-05-01 2004-07-27 Morning Pride Manufacturing, L.L.C. Protective hood, such as firefighter's hood, which has sections made from comparatively heavier and comparatively lighter materials
DE202005013635U1 (de) * 2005-08-30 2005-12-22 Peter Schmitt Gmbh Flammschutztuch für Feuerwehrhelme
FR2996424B1 (fr) * 2012-10-08 2015-01-09 Salomon Sas Casque a ventilation amelioree
MX2019003154A (es) * 2016-09-23 2019-07-04 Clark Johnnie Gorra de enfriamiento.
US10595580B1 (en) * 2017-01-13 2020-03-24 The United States Of America As Represented By The Secretary Of The Army Helmet mounted protective shroud
CN207054938U (zh) * 2017-08-23 2018-03-02 陈萧何 一种消防安全防护头盔
FR3109275B1 (fr) * 2020-04-15 2022-05-13 Zedel Casque de protection a reglage perfectionne
DE102021110196A1 (de) * 2020-04-30 2021-11-04 Dräger Safety AG & Co. KGaA Schutzhelm mit einem ummantelten Tragelement, Verfahren zum Entnehmen der Ummantelung aus dem Schutzhelm und Verfahren zum Herstellen eines solchen Schutzhelms

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8714490U1 (de) * 1987-10-30 1988-09-22 Allit-Plastic-Werk Kimnach GmbH & Co, 55545 Bad Kreuznach Schutzhelm
EP1885209B1 (fr) 2005-06-03 2010-09-01 MSA Gallet Casque de protection comprenant un dispositif de fixation d'un element de protection
KR100989524B1 (ko) * 2010-03-19 2010-10-25 주식회사 산청 보호용 헬멧

Also Published As

Publication number Publication date
US20210145107A1 (en) 2021-05-20
EP3827683B1 (fr) 2023-08-30
US11666111B2 (en) 2023-06-06
CN112823685B (zh) 2024-03-08
DE102019008043A1 (de) 2021-05-20
AU2020264328B2 (en) 2021-11-04
AU2020264328A1 (en) 2021-06-03
CN112823685A (zh) 2021-05-21

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