WO2021224932A1 - Système de montage de visière sur des casques balistiques - Google Patents

Système de montage de visière sur des casques balistiques Download PDF

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Publication number
WO2021224932A1
WO2021224932A1 PCT/IN2020/050537 IN2020050537W WO2021224932A1 WO 2021224932 A1 WO2021224932 A1 WO 2021224932A1 IN 2020050537 W IN2020050537 W IN 2020050537W WO 2021224932 A1 WO2021224932 A1 WO 2021224932A1
Authority
WO
WIPO (PCT)
Prior art keywords
visor
closed position
open position
frame
arms
Prior art date
Application number
PCT/IN2020/050537
Other languages
English (en)
Inventor
Manish Khandelwal
Kusumesh MISHRA
Original Assignee
Mku Limited
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 Mku Limited filed Critical Mku Limited
Publication of WO2021224932A1 publication Critical patent/WO2021224932A1/fr

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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
    • A42B3/18—Face protection devices
    • A42B3/22—Visors
    • A42B3/221—Attaching visors to helmet shells, e.g. on motorcycle helmets
    • A42B3/222—Attaching visors to helmet shells, e.g. on motorcycle helmets in an articulated manner, e.g. hinge devices
    • A42B3/223—Attaching visors to helmet shells, e.g. on motorcycle helmets in an articulated manner, e.g. hinge devices with means for locking the visor in a fully open, intermediate or closed position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H1/00—Personal protection gear
    • F41H1/04—Protection helmets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H1/00—Personal protection gear
    • F41H1/04—Protection helmets
    • F41H1/08—Protection helmets of plastics; Plastic head-shields

Definitions

  • the embodiments of the present invention generally relate to the field of ballistic helmets, and, more particularly, the embodiments of the present invention relate to a system for moving a visor mounted on a ballistic helmet from a closed position to an open position, and vice versa.
  • Ballistic helmets with visors are quite commonly known in the art. These visors are provided to protect the face of a military and law enforcement personnel during riots and combat situations.
  • the conventional helmets include visors that are pivotally mounted on opposite lateral sides of the helmet, and can be pivoted upward away from the wearer's face and downward in front of the wearer’s face.
  • helmet assemblies disclosed in the prior art, that incorporates a visor and a single, canter top helmet mount.
  • the visor is operatively mounted to the helmet mount.
  • the visor can be raised and brought down about a pivot axis offered in the mounting procedure between a tilted up, non-use position and a lowered, deployed position.
  • An aspect of the present invention is to provide a system for moving a visor mounted on a front portion of a ballistic helmet.
  • Another aspect of the present invention is to provide a system for moving a visor that enables the visor to move from a closed position to an open position and vice versa.
  • Another aspect of the present invention is to provide a system for moving a visor that enables the visor to move from a closed position to an open position and vice versa via a four bar planar mechanism.
  • Another aspect of the present invention is to provide a system for moving a visor that enables the visor to move in a substantially vertical motion in an upward direction and a downward direction.
  • Another aspect of the present invention is to provide a system for moving a visor that locks the visor at the closed position and the open position.
  • Another aspect of the present invention is to provide a system for moving a visor that unlocks the visor while moving from the closed position to the open position and vice versa.
  • a system for moving a visor from a closed position to an open position and vice versa is disclosed.
  • the system is configured to mount on a multipurpose mount positioned on a front central portion of a ballistic helmet.
  • the system includes a frame configured to detachably mount on the multipurpose mount.
  • the frame includes at least one cavity for locking the visor at the closed position, and at least one cavity for locking the visor at the open position.
  • the system further includes an element having a first end and a second end. The element is pivotally connected to the frame at the first end, and has a projection laterally extending from the first end to engage and disengage the respective cavity.
  • the system further includes a pair of arms having a first end and a second end, where one arm is arranged at each side of the element, and is pivotally connected to the first frame at the first ends.
  • the system further includes a visor holder configured to hold the visor.
  • the visor holder is connected to the second ends of the element and the pair of arms.
  • the frame, the element, the pair of arms and the visor holder are arranged in such a manner that they move the visor from the closed position to the open position and vice versa via a four bar planar mechanism.
  • the projection is engaged to the respective cavity to lock the visor at the closed position and the open position, and disengaged from the respective cavity to unlock the visor from the closed position and the open position.
  • Fig. 1 and Fig. 2 illustrates a front view and a side view respectively of a system for moving a visor, mounted on a ballistic helmet, in a closed position, in accordance with an exemplary embodiment of the present invention
  • Fig. 3 and Fig. 4 illustrates a front view and a side view respectively of the system for moving the visor, mounted on the ballistic helmet, in an open position, in accordance with an exemplary embodiment of the present invention
  • Fig. 5 and Fig. 6 illustrates an isometric view of the system for moving the visor in the closed position and the open position respectively, in accordance with an exemplary embodiment of the present invention
  • Fig. 7 and Fig. 8 illustrates a side view of the system for moving the visor in the closed position and the open position respectively, in accordance with an exemplary embodiment of the present invention
  • Fig. 9 illustrates an exploded view of the system for moving the visor, in accordance with an exemplary embodiment of the present invention.
  • Fig. 10 and Fig. 11 illustrates an isometric view of the system for moving the visor along with the visor in the closed position and the open position respectively, in accordance with an exemplary embodiment of the present invention
  • Fig. 12 illustrates an isometric partial view of the system for moving the visor showing a control knob and a projection and cavity, in accordance with an exemplary embodiment of the present invention
  • Fig. 13 illustrates an isometric view of a helmet with the system for moving the visor holding a metallic visor, in accordance with an exemplary embodiment of the present invention.
  • compositions or an element or a group of elements are preceded with the transitional phrase “comprising”, it is understood that we also contemplate the same composition, element or group of elements with transitional phrases “consisting of’, “consisting”, “selected from the group of consisting of, “including”, or “is” preceding the recitation of the composition, element or group of elements and vice versa.
  • the embodiments of the present invention relate to a combat helmet or a ballistic helmet. These types of helmets are designed to protect the head of the helmet wearer from various harmful objects such as, but not limited to, ammunitions, splinters, fragments, shock waves, and several other ballistic and non-ballistic impacts.
  • the embodiments of the present invention are aimed at situations, for example, riots, where special law enforcement forces need protection of their face from pelted stones, chemical splashes, and various other flying objects and fragments.
  • the ballistic helmets include a visor arranged in front of the face of the wearer.
  • the visor is provided with the purpose of protecting the face of the wearer. Further, during combat situations, those kind of ballistic helmets are preferred that allows the wearer to quickly switch the visor from an open position to a closed position in order to protect the face of the wearer from the harmful objects.
  • the embodiments of the present invention may facilitate the operation of moving the visor from a closed position to an open position and vice versa.
  • the closed position of the visor is referred to as the position where the visor is in a deployed state covering the face of the wearer
  • the open position is referred to as the position where the visor is in a stowed state uncovering the face of the wearer.
  • a front view and a side view respectively of a system 100 for moving a visor 102 (hereinafter referred to as ‘the system’), mounted on a ballistic helmet 104 (hereinafter referred to as ‘helmet’), in a closed position is illustrated, in accordance with an exemplary embodiment of the present invention.
  • the system 100 may be mounted on the helmet 104 via a multipurpose mount 106.
  • the multipurpose mount 106 may be attached to an outer surface 108 of the helmet 104, and positioned on a front central portion of the outer surface 108 of the helmet 104. In some embodiments, the multipurpose mount 106 may be attached to the outer surface 108 of the helmet 104 via nut and bolt, screw etc. A person skilled in the art will appreciate that in such kind of attachments, one or more holes is drilled on the helmet 104 to fasten the multipurpose mount 106. A person skilled in the art will also appreciate that drilling holes on the helmet 104 may reduce the ballistic strength of the helmet 104.
  • the multipurpose mount 106 may be attached to the outer surface 108 of the helmet 104 without drilling a hole on the helmet 104.
  • the multipurpose mount 106 may be attached via a protrusion (not shown in figures) having a thread insert.
  • the protrusion may be in any shape such as, but not limited to, a circle, an oval, a polygon etc. Further, the size and thickness of the protrusion may vary depending on the various parameters such as, size of the helmet 104, type of the accessories to be mounted on the helmet 104, weight of the accessories to be mounted on the helmet 104 etc.
  • the protrusion may be positioned on the front central portion of the outer surface 108 of the helmet 104.
  • the protrusion may form an integrated part of the helmet 104.
  • the protrusion may be attached to the outer surface 108 of the helmet 104 by means of adhesives or any hole-free attachment means.
  • the protrusion may be made of the same material as that of the helmet 104.
  • the protrusion may be made of a ballistic material. It will be apparent to a person skilled in the art that the protrusion made of a ballistic material will increase the ballistic strength of the helmet 104.
  • the multipurpose mount 106 may have a slot (not shown in figures).
  • the slot may be so arranged that when the multipurpose mount 106 is positioned on the helmet 104, the slot may align with the hole of the helmet 104, or the thread insert of the protrusion.
  • a fastening member may engage the hole while passing through the slot of the multipurpose mount 106.
  • a fastening member may engage the thread insert while passing through the slot of the multipurpose mount 106.
  • the multipurpose mount 106 may be positioned on the front central portion of the outer surface 108 of the helmet 104. It should be noted that the ways of attaching the multipurpose mount 106 on the outer surface 108 of the helmet 104 may not be limited to the above embodiments, and other ways known in the art may also be employed. It should be further noted that in alternative embodiments, the multipurpose mount 106 may be capable of mounting various accessories to the helmet 104 and may not be restricted to mount only the visor 102 as shown in the Fig. 1 to Fig. 4. The various accessories that may be mounted on the multipurpose mount 106 may include, but may not be limited to Night Vision Device, Night Vision Goggle, metallic visor (shown in Fig. 13) etc.
  • FIG. 5 and Fig. 6 an isometric view of the system 100, in the closed position and the open position respectively is illustrated, in accordance with an exemplary embodiment of the present invention.
  • Fig. 7 and Fig. 8 a side view of the system 100, in the closed position and the open position respectively is illustrated, in accordance with an exemplary embodiment of the present invention.
  • the system 100 may be configured to detachably mount on the multipurpose mount 106 positioned on the front central portion of the outer surface 108 of the helmet 104.
  • the system 100 may be configured to mount the visor 102 on the front portion of the helmet 104 in order to enhance the ballistic protection and non -ballistic facial protection.
  • the system 100 may enable movement of the visor 102 from the closed position to the open position and vice versa. It may be understood that during the closed position, the system 100 may cover the face of the wearer, and during the open position, the system 100 may uncover the face of the wearer. Moreover, the system 100 may be configured to move the visor 102 in a substantially vertical motion in an upward direction and a downward direction. For example, when switching from the open position to the closed position, the visor 102 may be moved in the downward direction to accommodate the visor 102 the open position, the visor 102 may be moved in in front of the face of the wearer, and when switching from the closed position to the upward direction away from the face of the wearer to the front of the helmet 104.
  • the system 100 for moving the visor 102 may include a frame 110.
  • the frame 110 may be configured to detachably connect to the multipurpose mount 106. It will be apparent to a person skilled in the art that the system 100 may connect to the multipurpose mount 106 via the frame 110.
  • the frame 110 may include a mounting surface. The mounting surface may be designed in such a manner that the frame 110 may be detachably connected to the multipurpose mount 106 via the mounting surface.
  • the frame 110 may have an integrated mount plate 112.
  • the mount plate 112 may be designed in such a manner that the frame 110 may be detachably mounted to the multipurpose plate 106 via the mount plate 112.
  • the frame 110 and the mount plate 112 may be different components that may be fastened to each other.
  • the mount plate 112 may act as an intermediate member that enables the frame 110 to be detachably connected to the multipurpose mount 106.
  • the means for mounting the frame 110 to the multipurpose mount 106 may not be limited to the above embodiments, and other means known in the art may also be employed.
  • the frame 110 may include at least one cavity 114a for locking the visor 102 at the closed position, and at least one cavity 114b for locking the visor 102 at the open position.
  • the frame 110 may include more than one cavity for locking the visor 102 at the closed position, and more than one cavity for locking the visor 102 at the open position. It will be apparent to a person skilled in the art that the purpose of more than one cavity may be to improve the locking protection of the visor 102 at the closed position and the open position.
  • the frame may have a first side 116 and a second side 118.
  • the at least one cavity 114a for locking the visor 102 at the closed position, and the at least one cavity 114b for locking the visor at the open position may be arranged on an internal surface of the first side 116.
  • the at least one cavity 114a for locking the visor 102 at the closed position, and the at least one cavity 114b for locking the visor at the open position may be disposed on the internal surface of the first side 116 via a first attachment 120.
  • the first attachment 120 may be attached to the internal surface of the first side 116 via one or more fastening members.
  • the cavity on the internal surface of the first side or the first attachment may be in the form of a slit.
  • the second side 118 of the frame 110 may be parallel to the first side 116.
  • the internal surface of the second side 118 of the frame 110 may include means to connect an element 122.
  • the internal surface of the second side 118 may be disposed with a second attachment 124 having the means to connect the element 122.
  • the element 122 of the system 100 may be an elongated structure.
  • the element 122 may be a load bearing structure configured to bear the load of the visor 102.
  • the element 122 may have a first end 126 and a second end 128, and may be pivotally connected to the frame 110 via the first end 126.
  • the element 122 may be pivotally connected between the first side 116 and the second side 118 of the frame 110. More specifically, the element 122 may be pivotally connected between the internal surface of the first side 116 and the internal surface of the second side 118.
  • the element 122 may be pivotally connected between the internal surface of the first attachment 120 and the internal surface of the second attachment 124.
  • the element 122 may be rotatable with respect to the first end 126. It will be further understood that the movement of the element 122 may be restricted between the closed position and the open position, in front of the helmet 104.
  • the element 122 may further include a projection 130 laterally extending from the first end 126 of the element 122.
  • the projection 130 may be configured to engage and disengage the cavity 114a at the closed position, and the cavity 114b at the open position.
  • the projection 130 may engage the cavity 114a for locking the visor 102 at the closed position, and at the open position, the projection 130 may engage the cavity 114b for locking the visor 102 at the open position.
  • the system 100 may further include an elastic element (not shown in the figures) arranged at the first end 126 of the element 122.
  • the elastic element may be configured to engage the projection 130 to the respective cavity 114a, 114b for locking the visor 102 at the closed position and the open position.
  • the elastic element may be configured to force the projection 130 to the respective cavity 114a, 114b.
  • the elastic element may be a compression spring.
  • the elastic element may be a solid state material. It will be apparent to a person skilled in the art that in a default state, the elastic element may keep the projection 130 engaged to the respective cavity 114a, 114b.
  • the system 100 may further include a control knob 132 to selectively disengage the projection 130 from the respective cavity 114a, 114b at the closed position and the open position.
  • the control knob 132 may be arranged at the first end 126 of the element 122.
  • the control knob 132 may be arranged in such a manner that the control knob 132 extends external to the frame 110.
  • the design of the control knob 132 may be such that the user may be able to operate the control knob 132 with gloved hands.
  • the control knob 132 In order to disengage the projection 130 from the respective cavity 114a, 114b, the control knob 132 may be manually pressed by the user. It will be apparent to a person skilled in the art that the control knob 132 may be arranged to exert force opposite to the force of the elastic element. In other words, the control knob 132 may exert a compression force on the elastic element.
  • the system 100 may further include a pair of arms 134 having a first end 136 and a second end 138.
  • the pair of arms 136 is provided to govern the movement of the visor 102 from the closed position to the open position and vice versa.
  • each of the arms 134 may be arranged at each side of the element 122.
  • each of the arms 134 may be pivotally connected to the frame 110 at the respective first ends 136.
  • the arms 134 may be connected at the external surfaces of the first side 116 and the second side 118 of the frame 110.
  • each of the external surfaces of the frame 110 may include an extension 140 for connecting the first ends 136 of the arms 134.
  • the movement of the pair of arms 134 may be also limited between the closed position and the open position, in the front of the helmet 104.
  • the path of the pair of arms 134 may be predefined so as to move the visor 102 in a constrained motion.
  • the locus of the path of the pair of arms 134 may be predefined to move the visor 102 in the constrained motion. This constrained motion may define the movement of the visor 102 while moving from the closed position to the open position and vice versa.
  • the system 100 for moving the visor 102 may further include a visor holder 142.
  • the visor holder 142 may be configured to hold the visor 102.
  • the visor holder 142 may be configured to detachably hold the visor 102 via fastening members.
  • the visor holder 142 may be configured to permanently hold the visor 102.
  • the visor holder 142 may act as an intermediate member for connecting the visor 102 to the system 100. It will be apparent to a person skilled in the art that the shape and size of the visor holder 142 may vary depending on the shape and size of the visor 102 to be held.
  • the visor holder 142 may be connected to the second end 128 of the element 122 and the second ends 138 of each of the arms 134. Further, the visor holder 142 may be hinged to the second end 128 of the element and the second ends 138 of the pair of arms 134. In an embodiment, the second end 128 of the element 122 may be hinged to the visor holder 142 via a shaft 144 that allows the visor holder 142 to move with respect to the second end 128. Similarly, the second ends 140 of the pair of arms 134 may be also hinged to the visor holder 142 via a shaft 144 that allows the visor holder 142 to move with respect to the second ends 138.
  • the frame 110, the element 122, the pair of arms 134 and the visor holder 142 may be arranged in such a manner that the system 100 forms a four bar planar mechanism. Accordingly, the frame 110, the element 122, the pair of arms 134 and the visor holder 142 when connected, may move the visor 102 from the closed position to the open position and vice versa via the four bar planar mechanism. It may be further understood from Fig. 5 to Fig. 8 that the system 100 for moving the visor 102 is a foldable mechanism. The foldable mechanism may enable a user to conveniently carry the helmet 104 having the system 100.
  • the helmet 104 having the system 100 may be easily stored in a compact places.
  • the frame 110, the element 122, the pair of arms 134 and the visor holder 142 may be made of materials including one or more of metals, alloys, polymers and composite materials.
  • the visor 102 may be a transparent anti-fog and anti-scratch visor sheet. Such visor sheets are highly resistant to high velocity impacts such as, but not limited to, hand gun ammunition, fragments, splinters, flying objects and chemical splashes.
  • the visor 102 may be a full face visor or a half face visor.
  • the visor 102 may further include a replaceable rubber edging 146 arranged along an upper edge of the visor 102.
  • the rubber edging 146 may be arranged to seal the gap between the upper edge of the visor 102 and the helmet 104 during the closed position of the visor 102. It will be understood by a person skilled in the art that the rubber edging 146 may prevent any sort of liquid splash to reach the wearer’s face thereby further enhancing the safety of the wearer. It will be further appreciated by a person skilled in the art that the shape and size of the rubber edging 146 may vary depending on the upper edge of the visor 102 and the shape of the helmet 104. The rubber edging 146 may be manually incorporated on the visor 102 when required by the user.
  • the visor 102 may further include two visor rest supports 148, one arranged at each edge of the visor 102.
  • the visor rest supports 148 may be arranged to rest on the edge of the helmet 104 during the closed position to prevent further movement of the visor 102 towards the face of the wearer in case of sudden impact.
  • the visor rest support 148 may be provided to increase the gap between the wearer’s face and the visor 102. It may be understood from the description that the visor rest supports 148 may protect the face of the wearer from hitting the internal surface of the visor 102 during sudden impact on the external surface of the visor 102.
  • the system 100 may be compatible to mount visors 102 of variable length and thickness. Further, the system 100 may be configured to mount transparent visor along with a metallic visor 150. The length of the visor 102 that may be mounted on the system 100 may vary from 90 - 200 mm. Further, the system 100 may also be configured to mount visors 102 having different designs. In accordance with an embodiment, the system 100 may be configured to position the visor 102 on an angular projection. It will be apparent to a person skilled in the art that in positioning the visor 102 in such a way may protect the wearer’s face from direct sun light while in the open position, with the incorporation of sun shade insert.
  • FIG. 12 an isometric partial view of the system 100 showing a control knob 132, the projection 130 and cavity 114a, 114b, is illustrated in accordance with an exemplary embodiment of the present invention.
  • the visor 102 may be in a locked state at the closed position or the open position. It will be apparent to a person skilled in the art that the locked state of the visor 102 may be essential during combat situations so as to protect the face of the wearer. Further, the locked state of the visor 102 during such combat situations may prevent an accidental movement of the visor 102 from the closed position.
  • the wearer may disengage the projection 130 from the cavity 114a, 114b by manually pressing the control knob 132, and may hold the control knob 132 in the pressed state till the visor 102 is manually moved from the closed position to the open position or vice versa.
  • the design of the control knob 132 may be such that the wearer may be able to operate the control knob 132 with gloved hands. Further, when the control knob 132 moves to the closed position or the open position, the control knob 132 may be released. The elastic element may then engage the projection 130 in the respective cavity 114a, 114b for locking the visor 102 at the closed position or the open position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Helmets And Other Head Coverings (AREA)

Abstract

La présente divulgation concerne un système (100) pour déplacer une visière (102) d'une position fermée à une position ouverte et vice versa. Le système (100) comprend un cadre (110) ayant au moins une cavité (114a, 114b) pour verrouiller la visière (102) en position fermée et en position ouverte. Le système (100) comprend en outre un élément (122) relié de façon pivotante au cadre (110), et comporte une saillie (130) pour venir en prise avec la cavité respective (114a, 114b) et pour dégager celle-ci. Le système (100) comprend en outre une paire de bras (134) reliés de façon pivotante au cadre (110). Le système (100) comprend en outre un support de visière (142) configuré pour maintenir la visière (102) et est relié à l'élément (122) et à la paire de bras (134). Le cadre (110), l'élément (122), la paire de bras (134) et le support de visière (142) déplacent la visière (102) par l'intermédiaire d'un mécanisme plan à quatre barres.
PCT/IN2020/050537 2020-05-04 2020-06-19 Système de montage de visière sur des casques balistiques WO2021224932A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202011018911 2020-05-04
IN202011018911 2020-05-04

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WO2021224932A1 true WO2021224932A1 (fr) 2021-11-11

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050206186A1 (en) * 2002-06-02 2005-09-22 Christian Delus Sun visor for the interior of a motor vehicle
US9032548B2 (en) * 2011-07-28 2015-05-19 Shoei Co., Ltd. Visor attachment mechanism in helmet
EP3190913A1 (fr) * 2014-09-10 2017-07-19 Bayerische Motoren Werke Aktiengesellschaft Casque de protection, notamment casque de moto, comprenant une mentonnière pivotante et amovible
US20170356723A1 (en) * 2011-03-14 2017-12-14 Revision Military S.A.R.L. Ballistic and impact protective military helmet assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050206186A1 (en) * 2002-06-02 2005-09-22 Christian Delus Sun visor for the interior of a motor vehicle
US20170356723A1 (en) * 2011-03-14 2017-12-14 Revision Military S.A.R.L. Ballistic and impact protective military helmet assembly
US9032548B2 (en) * 2011-07-28 2015-05-19 Shoei Co., Ltd. Visor attachment mechanism in helmet
EP3190913A1 (fr) * 2014-09-10 2017-07-19 Bayerische Motoren Werke Aktiengesellschaft Casque de protection, notamment casque de moto, comprenant une mentonnière pivotante et amovible

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