US3585638A - Safety helmet with releasable eyeshield - Google Patents

Safety helmet with releasable eyeshield Download PDF

Info

Publication number
US3585638A
US3585638A US357A US3585638DA US3585638A US 3585638 A US3585638 A US 3585638A US 357 A US357 A US 357A US 3585638D A US3585638D A US 3585638DA US 3585638 A US3585638 A US 3585638A
Authority
US
United States
Prior art keywords
shell
helmet
eyeshield
shield
housing
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.)
Expired - Lifetime
Application number
US357A
Other languages
English (en)
Inventor
Jackson Anthony Aileo
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.)
Gentex Corp
Original Assignee
Gentex Corp
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 Gentex Corp filed Critical Gentex Corp
Application granted granted Critical
Publication of US3585638A publication Critical patent/US3585638A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A42B3/228—Visors for military or aviation applications

Definitions

  • a safety helmet having an eyeshield assembly including at least one movable eyeshield, a cover for the eyeshield, and a housing for a movable handle connected to the eyeshield, secured to the helmet in such manner as to be detachable therefrom when subjected to lifting forces exerted by unusual conditions of air flow or pneumatic pressure that might otherwise tend to twist the wearers head or displace the helmet.
  • the cover and housing have open-ended slots and are secured to the helmet by screws disposed in the slots, which are so oriented that the aforementioned lifting forces can slide the cover and housing out of engagement with the screws, releasing the eyeshield assembly from the helmet.
  • the present invention relates to safety helmets having mavable eyeshields, and more particularly to new and improved arrangements for releasably mounting an eyeshield assembly on a helmet.
  • An eyeshield assembly of this type should ordinarily be securely fixed to the shell. Under some exceptional circumstances, however, it may be desirable to provide for release of the shield and other assembly elements from the helmet. For example, a high rate of air flow over the helmet may produce increased pressure beneath the shield, cover and housing (which are necessarily somewhat spaced from the shell) and/ or decreased pressure above these elements, such pneumatic pressure conditions may exert strong lifting forces on the eyeshield assembly, tending to lift or twist the wearers head or to displace the helmet. Release of the assembly in response to the lifting forces would minimize these hazards.
  • an eyeshield assembly is secured to a helmet shell by screws, rivets, snap fasteners or the like, in such manner as to require deliberate manipulation operations (with or without the use of tools) for detachment of the shield and other assembly elements from the shell.
  • These fastening arrangements are satisfactory from the standpoint of affording secure attachment of the assembly to the shell, but they do not enable detachment of the assembly elements by the aforementioned lifting forces, and hence the present some degree of hazard to the wearer when the helmet is worn under conditions that may produce such lifting forces.
  • An object of the present invention is to provide a safety helmet having a new and improved eyeshield assembly 3,585,638 Patented June 22., 1971 ice wherein elements that may be subjected to strong lifting forces exerted by unusual air how and pneumatic pressure conditions are detachable from the helmet by such lifting forces so as to prevent undesired transmission of the lifting forces to the helmet shell and the wearers head.
  • the invention may be embodied in a safety helmet including a helmet shell, an eyeshield, and means for mounting the shield on the shell for movement between shielding and retracted positions, wherein the mounting means includes a member (subject to the aforementioned lifting forces) for retaining the shield on the shell and means fastened to the shell and engaging a portion of the retaining member for securing that member to the shell.
  • the invention contemplates provision of a retaining member and securing means therefor, mutually adapted to be disengaged, for release of the member and the shield from the shell, by a finite force exerted in the direction in which the lifting forces act on the portion of the member engaged by the securing means.
  • the retaining member is frictionally engaged by the securing means and is slidable relative thereto (against the force of frictional engagement), for disengagement from the securing means, by a finite force exerted in the direction in which the lifting forces act.
  • the securing means may comprise screws
  • the retaining member may have open-ended slots so oriented that they open in a direction opposite to the direction of the lifting forces. The screws, received in the slots with their heads overlying the retaining member adjacent to the slots, positively retain the engaged portion of the retaining member against movement normal to the helmet shell, and frictionally hold the member on the shell.
  • the retaining member is slidable (in a direction generally tangential to the shell) out of engagement with the screws, when subjected to a lifting force of sufiicient strength.
  • an eyeshield assembly including a cover for the shield and/ or a housing for a handle for the shield, with securing means therefor, mutually adapted for disengagement (in the manner just described, with reference to the retaining member) by lifting forces as mentioned above.
  • the cover and/or the housing structure may constitute a retaining member for the eyeshield in such assembly.
  • One especially advantageous application of the invention is in eyeshield assemblies that incorporate two separately movable shields, e.g. one tinted and the other clear, for use under different conditions of illumination.
  • one shield is disposed outwardly of the other, and a cover is commonly provided for protection of both shields in the retracted position.
  • the outer one of the shields, and also the cover must be substantially spaced from the helmet shell to accommodate the inner shield; this spacing renders the cover and outer shield particularly vulnerable to lifting forces, e.g., as created by high rates of air flow over the helmet.
  • the present invention may be embodied in such assemblies to provide for release of the cover and outer shield, and in some cases the inner shield as well, in response to these lifting forces.
  • FIG. 1 is a side view of a safety helmet equipped with an eyeshield assembly embodying the present invention in a particular form;
  • FIG. 2 is a top view of the helmet of FIG. 1;
  • FIG. 3 is a side view as in FIG. 1, illustrating the sgpalration of eyeshield assembly elements from the helmet 5 el
  • FIG. 4 is an enlarged fragmentary sectional view taken along the line 44 of FIG. 1;
  • FIG. 5 is an enlarged fragmentary sectional view taken along the line 5-5 of FIG. 2;
  • FIG. 6 is an end view of part of the eyeshield assembly of the helmet of FIGS. 1-5, taken along the line 6-6 of FIG. 5;
  • FIG. 7 is a side view of a safety helmet equipped with an eyeshield assembly incorporating a modified embodiment of the present invention.
  • FIG. 8 is an enlarged fragmentary sectional view taken along the line 8-8 of FIG. 7;
  • FIG. 9 is a perspective view of one element of the assembly of FIGS. 7-8.
  • FIG. 1 shows a safety helmet 1 of a type generally as disclosed in the aforementioned copending application, Ser. No. 609,827, and incorporating an embodiment of the present invention.
  • the helmet 1 includes a rigid molded protective shell 2, fitted with internal rigging (not shown) of conventional form, which accommodates the head of a wearer and which is suitable for mounting associated equipment required by the wearer during its use.
  • the helmet 1 is fitted with an eye shield assembly 3, including two eyeshields 4 and 5 and a substantiallv rigid protective cover plate 6, all of which are held on the front of the helmet 1 by a mounting arrangement in accordance with the present invention, as hereinafter described.
  • the two eyeshields and the cover plate are curved to conform generally to the curvature of the helmet shell front portion and are disposed outwardly of that front portion, in forwardly spaced relation thereto.
  • a chin strap 211 may be provided for securing the shell 2 on a wearers head.
  • the eyeshields 4 and 5 are translatably mounted with shield 5 spaced outwardly of shield 4, i.e., with respect to the shell 2.
  • Each of these shields is adapted to move independently between an extended, eye-shielding position wherein it is located in the wearers field of vision, and a retracted position wherein it is located above the forward part of the shell 2 within a space defined between the shell and the forwardly spaced cover plate 6.
  • Eyeshield 5 is moved between the extended and retracted positions by a rigid link 7 attached on one end by an eyelet 8 to the upper corner of the eyeshield 5.
  • a similar link 10 (FIG. 2) moves eyeshield 4.
  • the two links 7 and 10 are connected at their opposite ends to respective knob-shaped actuating handles 11 and 12.
  • the handles 11 and 12 are adapted to ride in accommodating slots 13 and 14, respectively, provided in matching housings 15 and 16 which are attached to the shell 2.
  • the eyeshields 4 and 5 in their movement on the helmet 1 are slidably supported at their side edges in grooves formed in a pair of tracks 17 and 18, attached to the shell 2 on opposite sides of the fore-and-aft center line of the shell. As shown most clearly in FIGS.
  • the track 17 positioned on the left-hand side of the shell 2 comprises a curved spacer plate 17a positioned on the outer surface of the shell, a curved inner track member 17b defining an outwardly-opening groove 17c for receiving the left-hand side edge 4a of the inner eyeshield 4, and a curved outer track member 17a' (identical to member 17b) defining a second outwardly-opening groove 172 for receiving the left-hand side edge 5a of the outer eyeshield 5.
  • Member 1712 overlies spacer plate 17a, while member 17d overlies member 17b and the inner groove 170 so as to retain the eyeshield edge 4a within the last-mentioned groove against outward movement away from the shell; both grooves 170 and 17s are open at their extremities to permit the eyeshields to be slidably withdrawn from the grooves.
  • Track 18, on the right-hand side of the shell 2 (and not shown in FIGS. 3 and 4) is identical to track 17 except that is arranged to receive the right-hand side edges of the two eyeshields.
  • the cover plate 6 is so dimensioned that its opposite side edge portions 6a respectively bear against the outer surfaces of the two tracks 17 and 18, overlying the outer groove 17e of track 17 and the corresponding outer groove of track 18 so as to retain the side edges of the outer shield 5 in these grooves against outward movement away from the helmet shell.
  • Track 17 is secured to the shell 2 by fastening elements shown as three screws 19, spaced longitudinally along the track.
  • the shank of each of these screws projects inwardly through aligned holes in the members 17d, 17b and spacer plate 17a and through a hole in the shell 2, where it is threadedly engaged by a nut 20 disposed at the inner surface of the shell.
  • Track 18 is secured to the shell in like manner by three similar screws 19. As hereinafter further explained, certain of the screws 19 also serve to secure the cover plate 6 to the shell 2, in a particular arrangement in accordance with the present invention.
  • the two eyeshields 5 and 4 are moved slidably along the tracks 17 and 18, between their shielding and retracted positions, by manipulation of their respective handles 11 and 12.
  • Handle 11 and its associated housing 15 are mutually adapted (e.g. in known manner) for releasable interengagement at any of various positions along the slot 13, for selectively holding the eyeshield 5 in the shielding, retracted, or other position.
  • Handle 12 and housing 16 are similarly mutually adapted for releasable interengagement to selectively hold the shield 4 in any desired position.
  • one suitable form of means for effecting such interengagement of eyeshield handles and housings is disclosed in applicants aforementioned copending US. application Ser. No. 609,827, to which reference may be made for a fuller description thereof.
  • the eyeshield assembly 3 on the front of the helmet 1 is more or less streamlined and not particularly cumbersome, it may still be subjected to strong lifting forces created by unusually high rates of air flow over the forward portion of the shell, such as may be encountered on occasion, especially in use of the hel met by aviators.
  • the outer eye shield 5- which must be substantially spaced from the shell 2 to accommodate the inner shield 4, and the cover plate 6, which must be even further spaced from the shell to accommodate both eye shields, are particularly vulnerable to such lifting forces.
  • rapid rearwadlydirected air flow over the eye shield assembly may locally increase the pressure beneath shield 5 and plate 6, and/or may decrease the pressure above the curved upper surfaces of these structures, in accordance with well-known aerodynamic principles.
  • 1-6 provide a special arrangement for mounting the eye shield assembly elements subject to these lifting forces, in such manner that the last mentioned elements are ordinarily firmly secured to the helmet, but become separated or released therefrom (without need for any action on the part of the wrearer) in response to lifting forces of predetermined magnitude. Such release substantially prevents transmission of the lifting forces to the shell, and hence minimizes the hazard of discomfort or injury to the wearer.
  • the left-hand side edge portion 6a of the cover plate 6 has two open-ended slots 22, both opening through the adjacent side edge of the cover plate (i.e. to the left, in the direction away from the fore and aft center line of the helmet shell) and respectively positioned, adjacent to the upper and lower edges of the cover plate, for register with the upper and lower screws 19 that secure the track 17 to the shell.
  • right-hand side edge portion of the cover plate similarly has two open-ended slots 22 opening to the right (away from the helmet center line) through the adjacent plate side edge and respectively positioned for register with the upper and lower screws 19 that secure the track 18 to the shell.
  • Each of the track-securing screws has a head 23- at its outer extremity.
  • the head of the middle screw is flush with the outer track member 17d, but te heads of the upper and lower screws are both disposed outwardly of the outer track member, and the cover plate slots 22 respective receive the shanks of these screws.
  • the heads of the last-mentioned screws are tightened against the cover plate, so that these screw heads frictionally engage the outer surface of the cover plate adjacent to the slots 22.
  • the screw heads 23 positively secure the cover plate side edges against movement in a direction normal to the subjacent shell surface, and the engagement of the sides and closed ends of the slots 22 with the screw shanks positively prevents downward or rearward movement of the cover plate side edge portions relative to the shell 2.
  • the frictional engagement of the screw heads 23 with the cover plate 6 ordinarily restrains that plate against movement in any direction relative to the shell.
  • each side edge portion of the cover plate is slidably movable toward the fore and aft center line of the helmet, in a generally forward and upward direction tangential to the helmet shell, if a force acting in such direction, and sufiicient to overcome the frictional grip of the screw heads, is applied to the cover plate side edge portion.
  • the cover plate side edges can become fully disengaged from the screws 22, the open ends of the slots permitting such disengagement; and in this Way the cover plate 6 may be completely released from attachment to the shell 2.
  • the outer walls of the housings 15 and 16 are spaced from the outer surface of the helmet shell.
  • the housing 15 (which supports handle 11, connected to the outer eye shield 5) bears a pair of tabs 26, positioned on opposite sides of the forward portion of the housing in contiguous relation to the shell outer surface, and a further tab 27 extending from the rear of the housing, also in contiguous relation to the shell.
  • Each of these tabs has an open-ended slot 2 8, all three of the slots 28 being similarly oriented and opening forwardly.
  • Three screws 30 are respectively disposed in the slots 28, having shanks extending inwardly through the slots 28 and through holes in the helmet shell 2, where they are threadedly engaged by nuts 31 disposed at the inner surface of the shell (FIGS. 5 and 6).
  • the screws have heads 32 which are tightened against the tabs, so as to frictionally engage the outer surfaces of the tabs adjacent to the slots 28.
  • the screw heads positively restrain the tabs of the housing 15 against movement normal to the subjacent shell surface, and the engagement of the sides and closed ends of the slots 28 with the screw shanks positively restrains the housing 15 against forward or sideward movement relative to the shell.
  • the housing 15 is held against rearward movement (in a direction tangential to the shell) only by the frictional engagement of the screw heads 32 with the tabs 26, 27; the forwardly-opening slots 28 are shaped and dimensioned to permit sliding movement of the housing in such rearward direction relative to the screws, enabling the tabs 26, 27 to be fully disengaged from the screws 30 by a rearwardly directed force of suflicient magnitude to overcome the frictional grip of the screws.
  • the housing 16 (carrying the handle 12, connected to the inner eye shield 4) may be similarly secured to the shell 2 by screws 30 positioned in forwardlyopening slots 28 in tab portions 26, 27 of the housing 16.
  • the shell 2 In use of the described helmet, the shell 2 is placed on the wearers head and secured thereto by the chinstrap 2a. When the helmet is in place, the eyeshields 4 and/or 5 are manipulated as desired by means of the handles 11, 12. Under ordinary conditions, the eye shield assembly, including the shields 4 and 5 as well as the cover plate 6 and housings 15 and 16, is secured and fixedly held on the helmet shell by means of the screws 19 and 30.
  • the release of the cover plate 6 from the shell opens the outer grooves of the tracks 17 and 18, and thus frees the side edges of the outer eyeshield 5 (which may also be subject to lifting forces in the described circumstances) for outward movement away from the tracks and the shell.
  • the eye shield 5 is additionally connected to the shell through the link 7, handle 11 and housing 15.
  • the conditions that produce the described lifting forces on the cover plate 6 and eyeshield 5 also tend to produce a generally rearwardly directed lifting force on the housing 15.
  • This force if of sufficient magnitude, causes the housing 15 to slide rearwardly over the helmet shell, against the frictional grip of the screws 30, and ultimately disengages the housing tabs 26, 27 from those screws, owing to the configuration and orientation of the open-ended slots 28.
  • the housing 15, like the cover plate 6, is thus released from the shell. If the cover plate separates from the shell while the housing 15 is still attached, the outer shield 5 (lifting out of the track grooves) may be subjected to rearwardly directed aerodynamic forces which are transmitted to the housing 15 through the link 7 and exert an additional rearward force on the housing, tending to promote its separation from the shell.
  • the eye shield 5 is no longer connected to the shell in any way.
  • the eyeshield 5 is completely separated from the shell concomitantly with separation of the cover plate and the housing 15. In consequence, the shell is no longer subjected to lifting forces from the last-mentioned shield, housing and cover plate.
  • aerodynamic lifting forces exerted on the cover plate 6 act on the cover plate side edge portions in directions that tend to pull those side edge portions out of engagement with the screws 19, while the lifting forces exerted on the housing 15 act on its tab portions in a direction that tends to pull the tab portions out of engagement with the screws 30.
  • lifting forces of sufiicient magnitude will effect complete release of the cover and housing 15, and also the shield 5, from the shell.
  • the magnitude of lifting force required to effect such release is determined by the degree of frictional engagement of the screws 19 and 30 with the cover plate and housing. Accordingly, that force may be selected by appropriate (tightening or loosening) adjustment of the screws.
  • the rearward movement of the housing 16 tends to pull the inner eye shield 4 out of the tracks through the open upper ends of the inner track grooves, thereby releasing the inner shield as well as the outer shield from the helmet. Since the heads of the upper and lower screws 19 securing each track to the shell are spaced outwardly from the tracks to accommodate the cover plate '6, release of the cover plate from the shell permits some degree of relative movement of the inner and outer track members, especially near their ends; this play of the track members may facilitate release of the inner eyeshield.
  • FIGS. 7-9 One suitable form of supplemental cover-securing means in accordance with the invention is shown in FIGS. 7-9 as incorporated in a helmet otherwise identical to that of FIGS. 1-6.
  • two elongated gripping elements 34 and 35 forming clips are provided on each of the tracks 17 and 18.
  • Each pair of gripping elements is secured to the subjacent track by the screws 19, with the two elements 34 and 35 superposed to define a slit that opens toward the shell fore-and-aft centerline to receive one side edge portion 6a of the cover 6.
  • element 34 is fitted between the cover edge portion 6a and the outer track member 17d and element 35 is positioned outside the cover edge portion 611 and is held in gripping relationship therewith by means of the screw heads 23.
  • the two elements 34 and 35 are contoured appropriately to conform to the contour 6b in the cover 6 near its edge, and the inner clip piece 34 in engaging the contour 6b acts to resist movement of the cover edge 6a out of engagement with the screws 19.
  • the elements 34 and 35 are resiliently flexible so as to permit sliding movement of the cover edge portion 6a toward the fore-and-aft center line of the shell 2 and thus to release the cover when sufficient force acts on the cover 6 to free the edge portion 6a from the grip of the screws 19.
  • a safety helmet including (a) a shell adapted to receive the head of a wearer;
  • said portion of said member and said securing means being mutually adapted to be disengaged, for release of said member and said shield from said shell, by a predetermined force exerted in the direction in which said lifting forces act on said portion of said member.
  • a helmet as defined in claim 2, wherein said securing means comprises means for preselecting the force of frictional engagement between said portion of said member and said securing means.
  • said portion of said member includes an edge of said member having at least one slot opening through said edges in a direction opposite to that in which said lifting forces act on said portion of said member
  • said securing means includes at least one rigid fastening element having a shank extending through said slot and fixed to said shell, and a head overlying and frictionally engaging an outer surface of said portion of said member adjacent to said slot.
  • a safety helmet including (a) a shell adapted to receive the head of a wearer;
  • said portion of said plate and said securing means being mutually adapted to be disengaged, for release of said cover plate from said shell, by a predetermined force exerted in the direction in which said lifting forces act on said portion of said plate.
  • said securing means comprises means frictionally engaging opposite side edge portions of said plate, and wherein said plate side edge portions are slidable forwardly toward the fore-and-aft center line of said shell for disengagement from said securing means.
  • a helmet as defined in claim 6 comprising means for fixing said shank to said shell and cooperating with said shank to permit the preselection of the force of frictional engagement between said head and said outer surface of said plate.
  • said securing means comprises two pairs of elongated gripping elements respectively extending along opposite side edges of said cover plate, each pair of said gripping elements being fixedly connected to said shell in superposed relation to each other to define a slit between them opening toward said shell for-and-aft center line for receiving one side edge of said cover plate, each pair of said gripping elements frictionally gripping the plate side edge received between them.
  • said mounting means comprises a pair of tracks respectively secured to opposite sides of said shell fore-and-aft center line, each of said tracks defining an outwardly opening groove for receiving one side edge of said shield, and wherein said cover plate side edge portions respectively extend over said tracks to retain the side edges of the shield within the respective track grooves for guided sliding movement of the shield between said shielding and retracted positions, said plate and tracks being so arranged that release of said plate from said securing means effects release of said shield from said tracks.
  • a helmet as defined in claim 10 further including (a) housing structure extending rearwardly over said shell from said cover plate and defining an elongated slot;
  • said portion of said housing structure and said housing structure securing means being mutually adapted to be disengaged, for release of said housing structure from said shell, by a rearwardly directed predetermined force exerted by air flow and pneumatic pressure acting on said housing structure.
  • a safety helmet including (a) a shell adapted to receive the head of a wearer;
  • (0) guide means fixed on the shell and receiving the edges of both eye shields for guided movement of each eye shield between a shielding position in front of the wearers eyes and a retracted position above the forward portion of the shell;
  • each said handle being releasably engageable with its associated housing structure in each of plural positions along the slot of the housing structure for selectively retaining the shield to which it is connected in each of a corresponding plurality of positions;
  • said portion of said plate and said plate-securing means being mutually adapted to be disengaged, for release of said cover plate from said shell, by a predetermined force exerted in the direction in which said lifting forces act on said portion of said plate;
  • said portions of said housing structures and said housing structure securing means being mutually adapted to be disengaged, for release of said housing structures from said shell, by a rearwardly directed predetermined force exerted by air flow and pneumatic pressure acting on said housing structures.
  • said guide means comprises a pair of tracks respectively secured to opposite sides of said shell fore-and-aft center line, each of said tracks defining an inner groove for receiving one side edge of said first eye shield, and an outwardly opening outer groove for receiving one side edge of said second eye shield, and wherein said cover plate has side edge portions respectively extending over said tracks to retain the side edges of said second eye shield within the outer grooves of the respective tracks, said plate and tracks being so arranged that release of said plate from said securing means effects release of said shield from said tracks.
  • a safety helmet including (a) a shell adapted to receive the head of a wearer;
  • (h) means fastened to said shell and engaging a portion of said housing structure for securing said housing structure to said shell;
  • said portion of said housing structure and said housing structure securing means being mutually adapted to be disengaged, for release of said housing structure from said shell, by a rearwardly directed to the shell surface adjacent to said securing means, and only frictionally holding said portion of said member against movement in a direction, substantially tangential to said shell surface adjacent to said securing means, in which said lifting forces act on said portion of said member, to permit disengagepredetermined force exerted by air flow and pneumatic pressure acting on said housing structure.
  • a safety helmet including: (a) a shell adapted to receive the head of a wearer; (b) an eyeshield; and 5 (c) means for mounting said shield on said shell for guided movement between a shielding position in front of the wearers eyes and a retracted position above the forward portion of said shell, said means ment of said member from said securing means upon application of a predetermined lifting force to said member.
  • references Cited including a member for retaining said shield on said 10 shell, said member being separate from said shell and subject to lifting forces exerted by air flow and UNITED STATES PATENTS pneumatic pressure at said shell forward portion, and 2,619,640 12/ 1952 Weissberg 2-10 means fastened to said shell and engaging a portion 2,986,739 6/1961 Rozzi, Sr 29 of said member for securing said member to said 15 3,189,918 6/1965 Hiatt et a1. 2-9 shell; 3,237,203 3/1966 Nielsen 21() wherein the improvement comprises: 3,283,336 11/1966 Critser 29 (d) said portion of said member and said securing 3,315,272 4/1967 011; et al. 2.6

Landscapes

  • Helmets And Other Head Coverings (AREA)
US357A 1970-01-02 1970-01-02 Safety helmet with releasable eyeshield Expired - Lifetime US3585638A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35770A 1970-01-02 1970-01-02

Publications (1)

Publication Number Publication Date
US3585638A true US3585638A (en) 1971-06-22

Family

ID=21691172

Family Applications (1)

Application Number Title Priority Date Filing Date
US357A Expired - Lifetime US3585638A (en) 1970-01-02 1970-01-02 Safety helmet with releasable eyeshield

Country Status (3)

Country Link
US (1) US3585638A (enrdf_load_stackoverflow)
DE (1) DE2064510A1 (enrdf_load_stackoverflow)
GB (1) GB1305617A (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581775A (en) * 1983-10-07 1986-04-15 Nava Pier Luigi Tilting vizor for helmets particularly for sports use
US5265276A (en) * 1993-02-25 1993-11-30 The United States Of America As Represented By The Secretary Of The Army Helmet visor adaptor assembly
US5467480A (en) * 1992-12-08 1995-11-21 Sextant Avionique Support system for at least one visor on a helmet
WO1997019606A1 (en) * 1995-11-30 1997-06-05 David Winstone Aitken Bennett A safety helmet and method of manufacture
US5890233A (en) * 1996-11-06 1999-04-06 Kaffka; Michael G. Visor system for light sports helmets
US20020148032A1 (en) * 2000-05-22 2002-10-17 Gilles Basson Protective helmet and means for connection of an accessory
GB2398725A (en) * 2003-02-27 2004-09-01 Bob Heath Visors Ltd Visor film
US7398562B2 (en) 2004-03-10 2008-07-15 Easy Rhino Designs, Inc. Article with 3-dimensional secondary element
US20090064397A1 (en) * 2007-09-11 2009-03-12 Ching-Fu Chuang Safety helmet
US20100229288A1 (en) * 2009-03-16 2010-09-16 Danny Higgins Helmet having a guiding mechanism for a compatible visor
CN107635425A (zh) * 2015-05-19 2018-01-26 毛里西奥·帕兰赫斯·托雷斯 头颅保护单元中引入的改进
US11641903B2 (en) * 2017-11-13 2023-05-09 Barend Hendrik De Harde Helmet
US20250000195A1 (en) * 2023-04-27 2025-01-02 Final Forge, LLC Helmet having visor pivoting and locking mechanism and associated system and methods

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1170108B (it) * 1983-02-14 1987-06-03 Pier Luigi Nava Casco con visiera ribaltabile, particolarmente per usi sportivi
DE3517411A1 (de) * 1985-05-14 1986-11-20 Bayerische Motoren Werke AG, 8000 München Schutzhelmvisier

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581775A (en) * 1983-10-07 1986-04-15 Nava Pier Luigi Tilting vizor for helmets particularly for sports use
US5467480A (en) * 1992-12-08 1995-11-21 Sextant Avionique Support system for at least one visor on a helmet
US5265276A (en) * 1993-02-25 1993-11-30 The United States Of America As Represented By The Secretary Of The Army Helmet visor adaptor assembly
WO1997019606A1 (en) * 1995-11-30 1997-06-05 David Winstone Aitken Bennett A safety helmet and method of manufacture
GB2320414A (en) * 1995-11-30 1998-06-24 David Winstone Aitken Bennett A safety helmet and method of manufacture
GB2320414B (en) * 1995-11-30 2000-02-23 David Winstone Aitken Bennett A safety helmet and method of manufacture
US5890233A (en) * 1996-11-06 1999-04-06 Kaffka; Michael G. Visor system for light sports helmets
US6795977B2 (en) * 2000-05-22 2004-09-28 Gilles Basson Protective helmet and means for connection of an accessory
US20020148032A1 (en) * 2000-05-22 2002-10-17 Gilles Basson Protective helmet and means for connection of an accessory
GB2398725A (en) * 2003-02-27 2004-09-01 Bob Heath Visors Ltd Visor film
US7398562B2 (en) 2004-03-10 2008-07-15 Easy Rhino Designs, Inc. Article with 3-dimensional secondary element
US20090064397A1 (en) * 2007-09-11 2009-03-12 Ching-Fu Chuang Safety helmet
US20100229288A1 (en) * 2009-03-16 2010-09-16 Danny Higgins Helmet having a guiding mechanism for a compatible visor
US8286270B2 (en) * 2009-03-16 2012-10-16 Danastem Sports Enr. Helmet having a guiding mechanism for a compatible visor
CN107635425A (zh) * 2015-05-19 2018-01-26 毛里西奥·帕兰赫斯·托雷斯 头颅保护单元中引入的改进
US20180132557A1 (en) * 2015-05-19 2018-05-17 Maurício Paranhos Torres Improvements to Skull Protection Cell
US11419381B2 (en) * 2015-05-19 2022-08-23 Maurício Paranhos Torres Cranial protection cell
US11641903B2 (en) * 2017-11-13 2023-05-09 Barend Hendrik De Harde Helmet
US20250000195A1 (en) * 2023-04-27 2025-01-02 Final Forge, LLC Helmet having visor pivoting and locking mechanism and associated system and methods

Also Published As

Publication number Publication date
DE2064510A1 (de) 1971-07-08
GB1305617A (enrdf_load_stackoverflow) 1973-02-07

Similar Documents

Publication Publication Date Title
US3585638A (en) Safety helmet with releasable eyeshield
EP2007237B1 (en) Head suspension system and headgear having an adjustable visor and method of adjusting same
EP0321934B1 (en) Improved protective helmet assembly
US4075714A (en) Helmet characterized by negative lift
US2802212A (en) Headgear supporting structure
US5581819A (en) Protective headgear and abutment plate thereof
US6711751B1 (en) Mounting system for helmets
RU2390289C1 (ru) Система головного крепления и шлем со сменной бандажной дужкой, а также способ их регулировки
US4028739A (en) Ventilated helmet with selected weight distribution
US4075715A (en) Helmet having anti-lift device
US20200163401A1 (en) Helmet with pads removable in emergency
US4847920A (en) Dual-visor assembly for helmet
US3729745A (en) Protective device for the head
US3418657A (en) Retention device for protective helmet
EP3384794B1 (en) Detachable pad fastening structure of helmet and helmet including same
US3237202A (en) Visor detent device
US3262125A (en) Protective headgear
US3579637A (en) Protective helmet of adjustable size
US3110034A (en) Helmet with vent in visor cover
US3016541A (en) Safety hat
US3577564A (en) Face shield
US3613113A (en) Protective helmet
US2926355A (en) Headband rigging for safety helmets
PT9181U (pt) Capacete de proteccao
US2451140A (en) Headwear