DE1963838A1 - head protection - Google Patents

Description

19 December 1969 JFS-7341

GENTEX CORPORATION
Carbondale, Pennsylvania, V.St.A.

head protection

The invention relates to a head protection for · shielding the Against fire conditions that can cause injury.

Various forms of head protection devices have been used Built for use by firefighters and others who calibrate in their work in the vicinity There are conflagrations or similar conditions in which flames, heat, sparks and the like occur. Usually are such devices more or less flexible Anbesthauben, the head, face and quirks of the Completely enclose the support with the exception of a slot or window for visibility. Such hoods, with or without; a rigid screen that extends over the

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Face and the front part of the head extending, give a Protection against heat and flames, but shield your head (especially the top of the head and its back parts) do not fall off against flying or falling objects, as in Fires and explosions are common. On the other hand will the face or neck are not shielded from flames and heat by conventional fire helmets, though they also protect the head against impacting objects.

A headgear that provides protection against impacting objects as well as against flames, sparks and heat not only desirable for use in fire fighting or in conditions where there is a risk of fire or an explosion, but also in industrial professions, such as melting and welding under conditions among which persons flames or sparks and heat as well as the possibility of blows to the head, whether they are now directly with the flame and heat generating process related or not, are exposed.

The object of the invention is to create a head apron, which shields the head, face and neck of the wearer from flames, sparks and heat and at the same time his Head (including the crown of the head and the back of it) against impacts, e.g. from flying or falling Objects, protects. Furthermore, a head protection of the type mentioned should be created by the invention, which is comfortable is portable and easy to assemble and disassemble, e.g. to facilitate cleaning. The invention is also intended to provide a head protection which has an unobstructed view of the wearer permitted, but protects the eyes and is an eye protection element that is easily in and out of line of sight of the carrier can be relocated to, if desired, a allow normal unshielded view.

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For this purpose, the head protection according to the invention has a rigid helmet shell, which is dimensioned to accommodate the head of a wearer and extends over the top of the head to protect it against impacts, and a flexible, fire-resistant hood that extends fully over the helmet shell and a portion thereof directed downwardly which surrounds the face and neck of the wearer. According to the invention, the downwardly directed hood part can be tubular and of sufficient length so that it extends downward to the shoulders of the wearer. The hood, which has a horizontally extending opening for viewing in front of the wearer's eyes, is made of a non-flammable textile material with a heat-reflecting surface coating. In this combination of elements, the shell serves to protect substantially the entire head of the wearer from flying or falling objects, while the hood shields his head, face and neck from flames, sparks and heat.

Furthermore, an eye shield is provided according to the invention, which is attached to the front part of the helmet shell and to the hood in the upper deck with the aforementioned. Hood opener is attached to the right. Diener Augenschirm has a Rahr.en, which has mutually facing parallel mutes cc: er guides, eic (preferably horizontally) -lUr.js car opposite cant, the ilauber.öf fr.unn. Extend, and a partially translucent Eler.ent , which is slidably arranged in the hats of the frame, so about l »it is movable between a position in which it extends over the hood opening and a position in which it is located on one side of the hood opening.

Preferably the eyeshield and hood are detachable to each other by means of interacting complementary,

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pressure-actuated surface contact fasteners (e.g. of the hook rail type), those facing each other Surfaces of the frame and the hood are supported. The frame and the shell are similarly releasable from one another fastened by the same fasteners and, moreover, the hood and the jacket can be attached directly to one another be attached (e.g. at a point behind the wearer's head) by another pair of these Fasteners. The eye shield, which is only partially translucent, serves to protect the wearer's eyes against strong lighting as well as against flames and heat and .is slidable out of the line of sight, so that the wearer a Can have normal vision not dimmed if desired. The attachment of the hood, the eyeshade frame and the Shell ensures that the visor (and also the hood opening) is in the correct position in front of the eyes of the Wearer is held so that the view of the wearer is not obstructed, which may be the case when the hood and / or the screen is inadvertently displaced with respect to the shell. The additional attachment of the hood to the shell contributes to this desired fixed position of the visor and the hood opening to the eyes of the wearer at. At the same time facilitates the use of the releasable surface contact fasteners for the mutual Combination of the hood, the visor and the shell, the dismantling of the head protection for cleaning or To enable repairs if necessary.

The head protection according to the invention can take the form of a relatively light and comfortable headgear, the hood being made of an incombustible textile material, the reflective coating of which serves to increase its heat-shielding effect. Ventilation of the shell can be provided for additional comfort for the wearer * ^5, for example, by the use of a

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or more openings of larger size in the Shell covered with a number of smaller * openings in the hood.

In the accompanying drawing show:

1 shows a diagrammatic view of a head protection according to the invention in a special form;

FIG. 2 is a sectional side view of that shown in FIG Head protection, which shows the position of the helmet shell and the visor frame within the hood shows;

Figure 3 is a partial view of the inner front part of the hood "~ of the head protection shown in Fig. 1, which the fastening element carried by the hood for connection to a cooperating one from the visor frame shows worn fastener;

Fig. 1 is an exploded perspective view of the Helmet and the visor of the head protection according to Fig. 1, which the cooperating fastening elements on the shell and 'on the visor frame; and

Fig. 5 is a side elevation and section of the The eye shield along the line 5-5 in FIG. 4.

The embodiment of the invention shown in the drawing Head protection 10 is intended to be worn on a human head and includes the head and the Neck or neck of the wearer. The head protection 10 has a helmet 12 and a hood IU, the latter being

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extends fully over the outside of the Heines, as well as, after down over the lower edge of the helmet, so that this surrounds and protects the wearer's face and neck. The hood, which is detachable on the helmet, described in more detail below Means is attached is with an elongated in the horizontal direction opening IS in its front Part provided that is arranged so that it is in front of the eyes of the carrier can be brought when the hood and the Helmet are placed on the wearer's head. At the front Parts of the helmet 12 and the hood-it is a rigid one Eye shield frame 16 in overlap with the hood opening attached. Within the frame 16 there is a partially translucent eye shield element 18 which is used for Protection of the wearer's eyes serves but is effective for him Enables a view of its surroundings.

The helmet 12 has a rigid shell 20 that is sized is that it can pick up the head of a wearer and itself over the top of the head and over the back of the head and its lateral parts extending with the leading edge extending the shell is above the wearer's eyes so as not to obstruct his vision. The shell can made of any suitable material (e.g., compression molded plastic impregnated fiberglass fabric) that is of adequate strength so that it can withstand stronger blows, and one sufficiently has a high softening temperature to give it its rigidity and maintains integrity under elevated temperature conditions that exist in the vicinity of a fire.

Inside the shell 20 is a bracing (not shown) arranged, which carries the shell at a distance from the head of the wearer, so that blows or bumps on the shell not be transferred to the head. Such a bracing can be of any suitable form, as it has been for

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the same purpose was used in rigid protective helmets. An example of a suitable form of bracing is given in U.S. Patent Application Ser. 614.246 of February 6, 1967 described. The * helmet is used for such training to protect the head including the parting and its rear parts against flying or falling objects, since the impact of these objects is effective due to the tension is dampened.

In addition to the configuration described above, the helmet can also be provided with two auricles 22, which (in such a position that they cover the ears of the Wearer) worn by a neck visor 2 3 be, the (for example by not shown tapes od. The like.) Can be suspended from the interior of the shell 20. A suitable conventional chin strap can be used with the screen 2 3 (also not shown) which can be placed around the wearer's chin to secure the helmet in its position upside down. If desired, the helmet can also be equipped with elements (not shown) such as double headphones are provided, which within the mussels 22 are arranged, as well as with a microphone, which from the helmet is worn and is arranged in front of the customer of the wearer, however, within the hood 14 to allow two-way communication to allow with the carrier.

The hood 14 is made of a tin combustible and flexible textile material and can essentially be tubular, is closed at its upper end and has a transverse diameter of sufficient size that the helmet 12 can be received by the hood. if the helmet in the position shown in Fig. 2 at the top Located at the end of the hood, the lower tubular part hangs the hood down to below the bottom edge of the helmet by an amount sufficient to cover the face and neck

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or neck of the wearer completely surround 2u, and extends down to the wearer's shoulders and covered preferably the upper part of his body up to the neck, the hood shields the head, face and neck resp. Neck of the wearer against flames, sparks and heat from and their entire outer surface has a heat-reflecting metallic (e.g. aluminum) coating to make them more effective as a heat shield to boost. In general, the material from which the hood is made can be of any suitable flexible heat protective or heat reflective Material, e.g. made of a reflective coated fabric made of asbestos, fiberglass, rayon or Cotton. Another particular example of a satisfactory hood material is a fabric made from nylon yarn, that is commercially available under the trademark "Nomex" and has a reflective (e.g. »aluminum) coating on its outer surface.

The visor frame 16 is made up of two layers one rigid Material (e.g. from a suitable heat-resistant plastic) j of which the inner layer with 24 and the outer layer is denoted by 25, which layers about a vertical axis in adaptation to the curvature the essentially horizontal front edge of the helmet shell 20 is curved. The middle parts of the two layers are cut out so that they have a parallel-sided and in limit the horizontal direction elongated opening 26, the dimensions of which correspond to those of the opening 15 in the hood 14 coincide. As shown, the two layers 24 and 25 are attached to one another by a plurality of rivets 27;

Above the horizontal upper edge of the opening 26 ist.die outer frame layer 25 outwards and then downwards bent to form a flange 28 which joins the inner frame layer 24 to form a downwardly open groove

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cooperates over the full length of the top edge the opening 26 extends. In a similar way, the outer layer 25 is on the outside at the lower edge of the opening 28 and bent at the top to form a flange 30, which with the inner layer 24 cooperates to form an upwardly open groove 31 (which faces the groove 29), which extends over the full length of the lower edge of the opening 26 extends. Along the vertical sides of the opening 26 Other outwardly flanged parts of the outer ones have an effect Frame layer 25 together with the inner layer to form vertical grooves facing the opening, and on the left side of the opening is a vertical slot '33, the one with the left vertical groove in frame 16 in " Connection is formed in the outer layer 25.

The upper and lower grooves 29 and 31 and the corresponding side grooves are designed to accommodate the edges of the translucent Eye shield element 18 dimensioned. This element 18 is a rigid field made of transparent material, such as Glass, and is around a vertical axis in adjustments the Curvature of the frame 16 curved as well as for inclusion within dimension of the frame, with it at its upper edge and is held at its lower edge in grooves 29 and 31, and its opposite side edges in the two vertical grooves of the frame. The above-described grooves in the frame practically form a pocket for receiving the eyeshade element 18, which is in the pocket is inserted through the vertical slot 40. The element 18 is laterally through the slot 33 in and out of the opening 26 slidable as indicated in Fig. 4-.

On its outer surface, the eyeshade element 18 has a Coating to reduce its light transmission, thereby protecting the wearer's eyes from illumination high intensity as well as protection against heat, but the same

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to enable the view through the screen 18 in good time. A suitable form of such a coating is a layer of gold 35 applied by vacuum vapor deposition, by means of which the light transmission of the element 18 is reduced to about 20-25 % for light of visible wavelengths and about 15-20% for infrared energy.

The slot 33 is sufficiently wide to accommodate the thickness of the element 18 with little play, so that when the element 18 laterally through the slot in and out of his Position in the frame 16 slides, its outer surface not through the edge of the slot is scratched or rubbed. Further finds that the element 18 is held by the frame only along its edges during the sliding movement of the element 18 no scratching or rubbing touch (by which the coating 35 could be damaged) between the frame 16 and the central part of the element 18, i.e. that part of the element 18 through which the wearer is looking instead.

Two cooperating complementary pressure actuated surface contact fasteners 37 and 38 are on the outer surface of the shell 20 along its front edge and on attached to the facing inner surface of the frame 16 immediately above the opening 26 in such a position, that they interlock and thereby releasably secure the frame 16 to the shell in such a position that, if the shell is in its position on the head des.Trägers, the frame opening 26 in front of the wearer's eyes in its line of sight · is arranged. These fasteners strips of hook and eye fabric may be of the type commercially available under the trademark "Velcro" is available, the one strip being a continuous Number of small flexible eyes and the other carries a continuous number of small flexible hooks, which can be brought into engagement with the eyelets and

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This allows elements of this type to be attached to one another that they are pressed against each other by hand, and can be detached from each other by pulling them apart by hand will.

On the outer surfaces of the upper and lower flange or 30 and on the outer surfaces of the corresponding side flanges of the outer frame layer 25, strips of fastening material are attached which together form a fastening element 40 in the form of a coherent edge, which opens the opening 26 on the outer surface of the frame 16 surrounds. A cooperating complementary fastening element 41, which is adapted to the shape of the element 40, and is also formed by strips of fastening material, is attached to the inner surface of the hood 14 so that it surrounds the opening 15. The fastening elements 40 and U1, like the elements 37 and 38 described above, are of the pressure-actuatable surface contact type, e.g. made ^lt Velcro "-Haterial, wherein the one continuous plurality of flexible eyelets and the other a continuous plurality of flexible hooks which can be brought into engagement with the former,

Two other cooperating complementary - pressure-actuatable surface contact fastening elements 44 and 4 5 are arranged opposite one another on dev rear outer face of the helmet shell 20 and to the rear inner surface of the hood 18 for engagement with each other. These last-mentioned elements can also expediently be of the hook-and-eye type and made, for example, of "Velcro" material otherwise adhesively attached *

For the convenience of the wearer, a felt pad 48

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on the inner surface of the frame 16 at a central point be attached adjacent the lower edge of the frame to the nose of the wearer against contact with the frame to protect. Furthermore, one or more relatively large ventilation openings 50 in the shell 20 and a cooperating arrangement of a Number of small vents 51 on hood 14 in be provided in such a position that they are each in overlap with the shell ventilation openings SO. As a result of this arrangement of ventilation openings, the Inside of the helmet shell are ventilated, making the holes in · the hood are sufficiently small to prevent the wearer's head exposed to fire or heat is exposed, however (due to the relatively large size of the shell opening) an overburden is easy the shell and hood vents can be.

When assembling the head protection according to the invention, the visor frame 16 (which carries the visor element 18> is pressed against the front of the helmet shell 20 in such a position that the fastening elements 37 and 38 engage with one another - in order to secure the visor frame to the shell The hood 14 is then brought over the shell in such a way that the hood opening 15 is in alignment with the opening -2 6 of the eye screen frame, and the fastening elements 40 and 41 are pressed against one another for engagement in order to thereby pass through the hood Furthermore, the interlocking fasteners 44 and 45 on the rear of the helmet would be pressed against each other to secure the hood to the shell, thus holding the visor in a fixed position with respect to the shell the hood in a fixed position, with respect to the visor and the bowl _s whereby a

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Right-hand overlap of the hood and eyeshade openings as well as the hood and shell ventilation openings, i.e. prevent the fastening elements an undesired displacement of the hood during use, which can impair the wearer's sidvt (due to a Relocation of the opening 15 from his line of sight) to Cause or prevent proper ventilation of the interior of the bowl. At the same time, the cooperating Complementary pairs of fasteners can be easily pulled apart by hand to make the Disassembly of the head protection for cleaning or repair easier, and the head protection can thereby be reassembled so that the pairs of fasteners are pressed against each other by hand, as before.

In use, the assembled head protection is placed on the head of the wearer in such a way that the eye shield is attached is in front of his eyes. The hood, that of the helmet shell hangs down, rests and rests comfortably on his shoulders. When the eyeshade element 18 is in the closed Position, i.e. extends over the opening 26, are the head, face, eyes and neck or neck all fully protected. When heat, flames and Light are not present to a dangerous extent, the eyeshade element 18 can slide by hand according to the one side can be moved to an unshielded view to enable. When the element 18 moves out of its shielding position, it extends through the slot 40 in the hood 14 and its curved shape facilitates sideways sliding of the visor element out of the wearer's line of sight and to the side of the Helms.

The lower end of the hood 14 can be so as shown be shaped "that it is essentially the shoulders of the

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The carrier adapts, with the front and rear parts Extend up below the shoulders to the upper part shield of the wearer's body. The lower edge of the dome is bordered by an incombustible seam 5 5, which is attached to the Hood fabric is hardened and preferably a heat reflective one metallic coating, an endless loop of elastic wire 56, for example steel wire, the length of which is equal to the length of the lower edge of the hood, is attached below the seam 55, so that he the Fully surrounds opening at the bottom of the hood. This wire, which is more or less spring-like, is used to the downward part of the hood against the wearer's body to keep, to prevent the downward facing Hood part is bent upwards, and further folds in the hood to minimize that this Channels for the entry of gas, smoke and vapors into the Can form hood.

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Claims (1)

1983838 ΑΪ P at en ta ns ρ odor : 1. Head protection, characterized by. (A) a rigid helmet shell (20,) which is used to accommodate the The head of a wearer is benessen and extends over the crown of the head in order to protect against impact or - to protect impacts, and Cb) a flexible refractory hood (14) that extends entirely extends over the germination tray (20) and one of this hanging part has, so there.! she the face and neck or heel of the wearer surrounds » 2 * head protection according to claim 1, characterized in that the downwardly hanging hood part tubular and in front. is of sufficient length so that it can fall down, up to extends the school text of the wearer. 3, head protection according to claim 1 or 2, characterized in that there:? the hood (1 * 0 made of a non-combustible textile Material: with a heat-reflecting surface boresu is made. Head protection according to claims 1 - ^, characterized in that Gc3:> the shell (20) has at least one ventilation opening (50) and the hood (IU) has a number of ventilation openings (51), which is r.with the mentioned one, 00 98 29/0107. _BA0 JFS-7341 Shell opening are in overlap . 5. Head protection according to claims 1-4, characterized in that the hood ClM) is releasably attached to the shell (20) in a fixed position with respect to this. 6. Head protection according to claim 5, characterized by at least one pair of cooperating complementary, pressure-actuatable Surface contact fasteners (44, 4-5), which are carried by the opposing surfaces of the shell and the hood in engagement with one another to to releasably attach the hood to the shell, the one fastener has a surface with a continuous number of hooks and the other a continuous number of loops engageable with the hooks. A head protector according to claims 1-6, characterized in that the hood (14) has an opening (15) which is provided so _s to be arranged in front of the eyes of the wearer when the shell and the hood on the head of the The wearer is located, and an eyeshade (18) is also provided which is attached to the hood in overlap with the dome opening. 8. Head protection according to claim G, characterized by a second pair of cooperating, complementary push-button actuators Surface contact fasteners (37, 38) attached to the opposing surfaces of the - IC
009829/0 107 .ORIGINAL JFS-73M Screen element frame (16) and the »shell (20) for the Engaging with each other are arranged around the umbrella frame releasably secure to the shell with one of the second pair of fasteners having a surface having, which is provided with a continuous plurality of hooks, while the other fastening element of the second pair has a surface which is with a continuous plurality of ears is provided which can be brought into engagement with the hooks. - 17 - 009829/0107 L e r s e i t e