GB2179542A - Protective helmet equipment - Google Patents

Protective helmet equipment Download PDF

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Publication number
GB2179542A
GB2179542A GB08512080A GB8512080A GB2179542A GB 2179542 A GB2179542 A GB 2179542A GB 08512080 A GB08512080 A GB 08512080A GB 8512080 A GB8512080 A GB 8512080A GB 2179542 A GB2179542 A GB 2179542A
Authority
GB
United Kingdom
Prior art keywords
equipment
helmet
cable
optical
away
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
GB08512080A
Other versions
GB2179542B (en
GB8512080D0 (en
Inventor
Warren Kenneth Copp
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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
Priority claimed from GB848412587A external-priority patent/GB8412587D0/en
Priority claimed from GB848412591A external-priority patent/GB8412591D0/en
Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Publication of GB8512080D0 publication Critical patent/GB8512080D0/en
Publication of GB2179542A publication Critical patent/GB2179542A/en
Application granted granted Critical
Publication of GB2179542B publication Critical patent/GB2179542B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D10/00—Flight suits
    • 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
    • A42B3/042—Optical devices
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/12—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification
    • G02B23/125—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification head-mounted
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0176—Head mounted characterised by mechanical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0138—Head-up displays characterised by optical features comprising image capture systems, e.g. camera
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
    • G02B2027/0156—Head-up displays characterised by mechanical features with movable elements with optionally usable elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Astronomy & Astrophysics (AREA)
  • Helmets And Other Head Coverings (AREA)

Abstract

The forward part of an aircrew protective helmet has a mounting assembly for releasably attaching a carrier with optical equipment, for example, right vision goggles, which carrier and equipment may be jettisoned away from the protective helmet during ejection escape from the aircraft. The jettisoned equipment may be cord-linked to an anchorage in the aircraft or to the ejector seat. <IMAGE>

Description

SPECIFICATION Improvements in or relating to aircrew headgear The present invention relates to aircrew headgear. It is particularly concerned with equipment mounted on a protective helmet such as optical equipment, and the detachmentthereoffrom the helmet upon initiation of an ejection seat.
When optical equipment is mounted on aircrew protective headgear, it is usually to the fore thereof. If it were to remain attached to the protective helmet during ejection ofthe aircrewfrom an aircraft loads are, consequently, likely to be imposed upon the aircrewman which could be fatally unacceptable.
Howeverit is also important that the equipment be not jettisoned so freely that a risk arises of injury to the aircrewman or any colleague and thattheirvital equipment is not damaged.
The present invention provides meansforattaching and detaching optical equipment mounted on aircrew protective headgear and also for controlledjettisoning ofthe equipment therefrom and yet restraining the equipment after detachment from the headgear so as to minimise the risk of injury or damage to essentiat personal equipment.
According to the present inventionthere is provided a protective helmet mounting assembly for mounting optical equipment on the forward part of a protective helmet having meansforattaching and detaching optical equipment from the protective helmet and characterised by means forjettisoning and projecting the optical equipment away from the helmet. An advantage ofthe present invention is the provision of a means of jettisoning the equipment in an emergency.In the event that it is necessary for an aircrewman to exit an aircraft in an emergency he will often have very little time to carry outthe evacuation and also have several tasks to complete, thus automatic and safe removal of any ancitlialry helmet mounted equipment is particularly advantageous.
According to a further aspect of the present invention there is provided a protective helmet equipment mounting assemblyfor mounting optical equipment on the forward part of a protective helmet having means for manually attaching and detaching the optical equipment to thehelmet and characterised by means to enable the jettisoning of the optical equipment and its projection away from the helmet in the event of an emergency evacuation of aircraft.
It is advantageous for an aircrewman to be able to manually attach and detatch the helmet mounted optical equipment so avoiding the need to either have two helmets or always have the equipment mounted on a helmet.
According to a further aspect ofthe present invention there is provided a protective helmet equipment mounting assembly for mounting optical equipment on a protective helmet having a manually operable clip means for attaching and detataching the equipment to the helmet. A cable release device arranged to detach the optical equipment from the helmet at the initiation of the aircrew ejection sequence and pull it away from a wearer and optical equipment retaining means arranged to retain the optical equipment against collision with the ejecting aircrewman.
An advange ofthe present invention is the provision of a cable release device to detach the optical equipmentfromtheaircrewmans helmet and means for retaining the optical equipment once ejected to prevent it casing injuryto the ejecting aircrewman or damage to his vital equipment.
According to a further aspect of the present invention there is provided a protective helmet equipment mounting assembly having an equipment anchorage point on the forward position ofthe helmet, a carrier means attached to the optical equipment, means for enabling the carrier to be manually attached to and detatched from the helmet anchorage point, cable means for detaching the equipment carrier from the helmet and meansfor reeling the optical equipment and carrier away from the helmet.
An advantage ofthe present invention is the provision of cable means for reeling the optical equipment away from the helmet and thus away from the aircrewman so reducing the level of risk to him and his personal equipment.
According to afurtherfeature ofthe present invention there is provided a protective helmet equipment mounting assembly characterised by cable operating means for reeling the equipment away from the helmet and means for deploying a safety visor after ejection ofthe equipmentfromthe helmet.
An advantage ofthe present invention is thatthe sequential ejection ofthe optical equipment and the deployment of a safety visor provides the aircrewman with facial protection against flying debris and against air blast resulting from his entry into a fast moving airstream.
According to a feature of the present invention there is a helmet equipment mounting assembly having a first cable means operating the detatchment and ejection of the equipment away from the helmet, and the cable means connected to a second cable means adapted to deploy a safetyvisor after ejection of the equipment.
An advantage of a cable operated safety deploy ment means is that the control ofthe ejection ofthe equipment and deployment ofthe visor may both be effected by cable means connected by simple meachnical linkagewithoutthe need for other forms of operating our control system coupling.
According to the present invention there is provided a protective helmet equipment mounting assembly characterised inthatthemeansfordeployingthe safety visor after ejection ofthe optical equipment is assisted by spring means urging the visor to a deployed position.
An advantage ofthe present invention is the provision of a secondary means for assisting the deployment of a safety visor, which is beneficial in ensuring protection ofthe aircrew in a hostile environment.
The optical equipment holder may consist of a snubber block which may be mounted on the cockpit wall or ejector seat. It may include an arm, perhaps deployable, mounted on the cockpit wall. It may comprise a stowage grip for retaining the equipment when not in use before and during flight. The cable may be so associated with an ejection seat that movementofthe latter pulls the cable. However an independant motor is much preferred.
In one embodiment of the present invention the mount mayincludea visordeploymentfacility adapted for deploying a visor across the aircrewman's face during an ejection sequence. Th is facility, which would be arranged to ensure blast protection for the aircrewman's face, may comprise a cable extending between a connector attachable to the optical equipment when the latter is attached to the helmet and a visor operator associated with thedesignated visor.
The visor operator may be an anchorage on the visor itself, but preferably it comprises a driver normally attached the helmet above the visor so thatthe cable is unaffected by manual deployment of the visor. The yisor deployment facility may include a snubberfor retaining the visor deployed until overridden. Cable cutting means may also be included, downstream ofthe snubber. A positive cutter is preferred to notching the cable.
The cables may be wire or a suitable plastics filament of cord.
In orderthatthe present invention may be more easily understood Optical Equipment release apparatus in accordance with the present invention will now be described by way of example with reference to the accompanying drawings, of which: Figure 1 is an isometric view ofthe apparatus, Figure 1 a is an isometric view of a helmet mount, Figure 2 is a part exploded view of a helmet mount, Figure 3 is a side view illustrating a visor lower facility, and Figure 4 is a plan view of an aircraft cockpit.
As shown in the drawings, optical equipment 10 is carried on a carrier 11 arranged for detachable attachment to a helmet mount 12 on the brow of an aircrewman's helmet 13. The helmet 13 3 also carries a birdstrike visor 14 and an outer visor 15. An optical equipment release apparatus includes a release cable 16 a fast reel-in arm 17.
The carrier 11 has a gripper lever 20 pivotally attached thereto and incorporating an engagement jaw20a,and grip pin guide holes 1 1a.The lever 20 is urged closedto gripthe helmet mount by springs 21.
Figure 2 shows the carrier with lever 20 removed.
Beneaththe lever20, aresprings 21 for urging the lever closed. The carrier 11 holds a slider block 22 which incorporates lever lifting cams 22a and caliper closure cam surfaces 22b, a spring caliper 23 attached via an adjustable link 24to a spring loaded throwover link25, anda caliperwedge26.The release cable 16 passes th rough a director eye 27 on the carrier 11 and is enclosed in the link 25.
The helmet mount 12 is recessed to receive snugly the carrier 11 and carries notched pins 30 arranged for centering the guide holdes 11 a and being engaged by the leverjaw 20a, a visor lowering pin 31 having a groove31 a, a cutting edge32 and a snubber 33.
Mounted on the helmet 13 abovethe visors 14,15 in their stowed configuration, is a visor operator com- prising an anchorage 35, a bracket36 and a cable 37.
The anchorage 35 is attached to the helmet and the bracket36 is retained ontheanchorage35during normal operation ofthevisors 14,15. The cable 17 extends between the bracket 36 and the pin 31 via the snubber 33 and past the cutting edge 32.
Figure 4 shows the apparatus in an aircraft cockpit.
Afast reet-in arm 17 is mounted on a hinge on the cockpit wall, alongside a motor and optical equipment stowager box 40. Thus the arm 17 normally lies along the wall and is arranged for deployment on tensioning the cable 16. The box 40 carries a retainerfor the optical equipment similarto that shown in Figure 1 a.
The cable 16therefore passes from the motor box 40, via the arm 17 and a clip 41 to the director eye 27 and the link 25. The clip 41 is attachedto the cockpit wall.
As shown in Figure 1 the inner, bird strike visor 14 is recessed, at 14a,to accommodate the helmet mount 12.
During normal flying activities the optical equipment may be stowed in the box 40. When the aircrewman wishes two use the optical equipment he unclips itfrom the box 40, and clips it into his mount 12, using the lever 20. As the carrier 11 enters the recess in the mount 12 the notched pins 30 enter the carrier holes 11 aand the visor lowering pin 31 enters the wedge 26. When these are fully engaged thejaw 20a of the lever 20 catches in the notches ofthe pins 30, and the groove 31 a in the visor lowering pin 31 protrudes beyond the wedge 26.Theclip 41 isso positioned with respect to the box 40 and the arm 17 that the cable 16 has no slack when the equipment is stowed, but also so that the cable 16 passes over the aircrewman's shoulder with just sufficient slack for head and body movement when the equipment is mounted on his helmet 13.
When the aircrewman wishes to restow the optical equipment he gripsthe carrier 11, depressingthe lever 20 so thatthe jaw 20a is lifted and he is able to withdraw the equipment from the mount 12. The slider 20 and the caliper 23 remain in the stowed configuration.
In the event of ejection being initiated while the optical equipment is mounted on the helmet 13, the motor commences winding in the cable 16. As it is being tensioned the cable 16 leaves the clip 41 and deploys the arm 17. Then the cable 16 will be pulling from ahead ofthe aircrewman's head, and will pull backthethrowover link 25 and hence the link 24 and the caliper 23. As the caliper 23 leaves the wege 26 it springs closed onto the visor lowering pin 31 and into the groove 31 a thereof. Atthe sametimethe caliper23 engages the cam surfaces 22b ofthe spider 22a and begins two draw the slider back while being held closed by the cam surfaces 22b. The lifting cam surfaces 22a liftthe jaw 20a ofthe lever 20, releasing the carrier 11 from the mount 12. As the cable 16 continues to haul the optical equipment on to the arm 17the caliper23 draws the visor lowering pin 31 and hencethe cable 37. The bracket 36 is pulled awayfrom the anchorage 35 and engages and lowers the visor 15. When the visor is fully down the cable 31 is cut by the cutter 32, the visor being held down by virtue of the snubber 33 gripping the cable 31. Asthe optical equipment completes its journey to the arm 17, ejection ofthe aircrewman continues, so that the optical equipment avoids his person.
The optical visor may also be spring loaded and have spring means which will tend to urge the visors into the deployed position. The spring means may assist the deployment and be retained by catch means, the catch means being releasable upon deployment ofthe optical equipment ejection system.
It is to be appreciated that the optical equipment for which this invention may be used is not limited to binocular type apparatus illustrated inthefigures but may be any form of desired helmet mounted equipment.

Claims (8)

1. Amounting assemblyformounting optica I equipment on theforward part of a protective helmet having means for attachingand detatching optical equipment from the helmet and characterized by means forjettisoning and projecting the optical equipment away from the helmet.
2. A protective helmet equipment mounting assem biy for mounting optical equipment on the forward part of a protective helmet having means for manually attaching and detaching the opticalequip- mentto the helmet and characterised by means for jettisoning the optical equipment and projecting it away from the helmet in the event of an emergency.
3. A protective helmet equipment mounting assembly according to claims ? or 2 having a manually operable clip rneansforattaching and-detaching the equipmenttothe helmet and characterised bye cable release device arranged to detach the optical equip mentfrom the helmet and pull it away from thewearer in the event of an emergency.
4. A protective helmet equipment mounting assembly according to any one of claims 1-3 having an equipment anchorage point onthe forward part ofthe helmet, a carrier means attached to the optical equipment, meansforenablingthecarrierto be manually attached to and detached from the helmet anchorage point, cable means for detaching the equipment carrierfrom the helmet and meansfor reeling the optical eq ui equipment and carrier away from the helmet.
5. A protective helmet mounting assembly according to any preceeding claim characterised by a cable operated means for detaching and ejecting the carrier away from the helmet and cable means for deploying a safetyvisor after ejection ofthe equipment from the helmet.
6. A protective helmet equipment mounting assembly according to any preceeding claim and characterised by a first cable means operates the detatchment and ejection ofthe equipment and the cable means is attached to a remotely mounted winding means for reeling the equipment away from the helmet and the cable means is connected to a second cable means adapted to deploy a safety visor after ejection of the equipment
7. A protective helmet equipment mounting assemblyaccording to any preceeding claim char acterised by the equipment m oving in aforward direction when ejected from the helmet, and reeled away from the wearer and is stowable in a stowage compartment remote from the wearer.
8. A protective helmet equipment mounting assemblyaccording to any preceeding claim and characterised by the means for deploying the safety visor after ejection of the optical equipment the visor deployment means being assisted byspring means urging the visorto a deployed position.
GB8512080A 1984-05-17 1985-05-13 Improvements in or relating to aircrew headgear Expired GB2179542B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848412587A GB8412587D0 (en) 1984-05-17 1984-05-17 Aircrew headgear
GB848412591A GB8412591D0 (en) 1984-05-17 1984-05-17 Aircrew headgear

Publications (3)

Publication Number Publication Date
GB8512080D0 GB8512080D0 (en) 1986-12-17
GB2179542A true GB2179542A (en) 1987-03-11
GB2179542B GB2179542B (en) 1989-05-17

Family

ID=26287756

Family Applications (2)

Application Number Title Priority Date Filing Date
GB08512083A Withdrawn GB2179543A (en) 1984-05-17 1985-05-13 Protective helmet equipment
GB8512080A Expired GB2179542B (en) 1984-05-17 1985-05-13 Improvements in or relating to aircrew headgear

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB08512083A Withdrawn GB2179543A (en) 1984-05-17 1985-05-13 Protective helmet equipment

Country Status (1)

Country Link
GB (2) GB2179543A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755770A1 (en) * 1996-11-12 1998-05-15 Sextant Avionique HELMET WITH NIGHT VISION SYSTEM AND SUBSTITUTE OPTICS FOR DAY VISION
GB2412837A (en) * 2004-04-07 2005-10-12 Norotos Inc Shroud plate attachment for a helmet

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219927B (en) * 1988-06-01 1992-07-08 Shin Un Shik An item of headwear with binoculars
US4987608A (en) * 1988-06-30 1991-01-29 The United States Of America As Represented By The Secretary Of The Army Mounting means for use of ground system type goggles as aviators goggle
US4969714A (en) * 1989-02-21 1990-11-13 United Technologies Corporation Helmet mounted display having dual interchangeable optical eyepieces
GB2247822B (en) * 1990-09-14 1994-02-16 Gec Ferranti Defence Syst Pilot's helmet
FR2677604B1 (en) * 1991-06-12 1997-01-03 Sextant Avionique DEVICE FOR FIXING A HEAD EQUIPMENT ON A PILOT HELMET.
US5176342A (en) * 1991-12-30 1993-01-05 The United States Of America As Represented By The Secretary Of The Navy Goggles emergency release apparatus
GB9213603D0 (en) * 1992-06-26 1992-10-07 Marconi Gec Ltd Helmet mounted display systems
US5367402A (en) * 1992-12-14 1994-11-22 Itt Corporation Helmet mounted night vision apparatus and method of separation
US5542627A (en) * 1994-02-17 1996-08-06 Itt Corporation Quick release coupling apparatus and method for a helmet mounted night vision goggle arrangement
FR2717272B1 (en) * 1994-03-08 1996-05-31 Sextant Avionique Mechanical attachment device for a display system on a helmet.
US5991085A (en) 1995-04-21 1999-11-23 I-O Display Systems Llc Head-mounted personal visual display apparatus with image generator and holder
US6369952B1 (en) 1995-07-14 2002-04-09 I-O Display Systems Llc Head-mounted personal visual display apparatus with image generator and holder
FR2772242B1 (en) * 1997-12-12 2000-03-03 Sextant Avionique HELMET COMPRISING A WIDTHABLE PART BY AN INFLATABLE CUSHION
CN109805486B (en) * 2019-01-30 2021-05-11 中国人民解放军陆军军医大学第二附属医院 Protection device for head and neck of patient

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167644B (en) * 1984-02-15 1988-01-27 Ms Instr Limited Night vision goggle arrangement with automatic release

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755770A1 (en) * 1996-11-12 1998-05-15 Sextant Avionique HELMET WITH NIGHT VISION SYSTEM AND SUBSTITUTE OPTICS FOR DAY VISION
WO1998021618A1 (en) * 1996-11-12 1998-05-22 Sextant Avionique Helmet with night vision system and optic capable of being substituted for day vision
GB2412837A (en) * 2004-04-07 2005-10-12 Norotos Inc Shroud plate attachment for a helmet
GB2412837B (en) * 2004-04-07 2006-09-13 Norotos Inc Shroud plate attachment for headgear
AU2005201067B2 (en) * 2004-04-07 2009-07-16 Norotos, Inc. Shroud plate attachment

Also Published As

Publication number Publication date
GB2179543A (en) 1987-03-11
GB8512083D0 (en) 1986-12-17
GB2179542B (en) 1989-05-17
GB8512080D0 (en) 1986-12-17

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Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930513