EP0720497B1 - Protective helmet with a gas-mask attachment device - Google Patents

Description

The invention relates to a protective helmet with a connecting device for detachable Attachment of a strapless respirator, as in the preamble of Claim 1 is described.

It is already a combination of a protective helmet and a tapeless respirator known from DE 37 21 662 A1, in which the respirator mask by two Connection device can be attached to the hard hat. Any connection device has two coupling parts, each in the area of one of the both flank areas of the protective helmet facing the ears of a user and is attached in one of the two side areas of the respirator. The helmet-side coupling parts are arranged in a recess in the protective helmet shell. The coupling part on the mask side is limited by a swivel axis rotatably arranged on the respirator and has a plug part, which in a connector receiving part of the helmet-side coupling part can be snapped. The two Coupling parts are adjustable and lockable relative to each other and by Relative adjustment of the coupling parts to each other are the breathing mask and the Safety helmet can be fixed at different distances from each other. The disadvantage here is that by the arrangement of the helmet-side coupling parts in a recess the hard hat shell through the over the inner surface of the hard hat shell protruding components in case of lateral impact stresses to injuries in the face area of the wearer can come.

DE 40 37 034 A1 describes a combination of a protective helmet with a breathing mask known in which the connection of the protective helmet with the respirator via two detachable coupling parts. The helmet-side coupling part is over a pivot axis on the support frame or in the inner helmet of the protective helmet stored that he is between the outer shell of the hard hat and the inner helmet or the support frame. There is a mushroom-shaped on the helmet-side coupling part Bolts arranged. The further coupling part of the breathing mask is with a buttonhole-like opening with a large diameter and a narrow elongated Provide attachment. The helmet-side coupling part can be from its rest position be pivoted out so that the coupling part of the respirator with the Opening can be hung in the mushroom-shaped bolt. Then the helmet-side coupling part pivoted in the direction of its rest position, around the respirator to approach the face of the fireman and thus an airtight one Reaching the face of the firefighter's face mask. The disadvantage here is that the adaptation of the respirator to the face of the Firefighter is unsatisfactory.

It is a protective helmet for the detachable attachment of a respirator with a Connection device known - according to DE 26 40 701 C3, in which both locking element the connecting device, which can be releasably engaged with one another, are arranged within the outer boundary of the protective helmet. This connection device consists, for example, of a locking bell, which has a holding element a recess of the protective helmet is held in the one on the respirator fastened locking element can snap, with a corresponding adjustment sufficient tension between the respirator and the face of the user and the support of the counterforce can be achieved via the protective helmet. Disadvantageous is that the determination or adjustment of the contact pressure and the release the fastening device through the bearing device penetrating the protective helmet the connecting device and accordingly the protective helmet with relative large openings and recesses must be provided.

Another known protective helmet - according to EP 0 105 813 B1 - has a rigid cap and an inner hood made of supple transverse bands, the side parts of which in symmetrical to the central longitudinal plane of the protective helmet and approximately at the level of the ears points of the user converge, with the protective helmet on the removable Respirator mask adjustable by at least one side mounting arm Length is articulated. The helmet's cap is on the outside of each of them Sides at the user's ears with hooking notches or slits for Attach two side mounting arms. These are on both sides the breathing mask connected to it. Each of the side mounting arms has two telescopic elements which are connected to one another by resilient elements and are so biased that they try to penetrate each other. A with the associated hooking notch of the calotte is a cooperating hook pivotally mounted on the rear telescopic member of the mounting arm. On the front telescopic element of the mounting arm and on an extension of the hook are provided through which the two elements in extended position can be temporarily locked. Also unlocking means for this sling means provided by the support of the mounting arms the outer surface of the protective helmet can be triggered when the respirator mask is put on. With such a protective helmet and a breathing mask connected to it could not provide sufficient security for the user in all cases achieved such a combination of protective helmet and respirator will.

However, there are also other connecting devices known from the prior art between protective helmets and breathing masks known - according to DE 33 00 646 C1 -, which are constructed such that actuators on the respirator the prestress or the contact pressure of the respiratory mask on the face of the User can be determined. The operation of the connection devices proves to be especially difficult when wearing gloves.

Furthermore, a protective helmet with a detachably attached to it is already Respiratory protection mask known - according to DE 25 49 979 C3, in which the connecting device is arranged in a recess of the calotte of the protective helmet and in the Hard hat surrounding interior has protruding locking parts that directly engage in corresponding locking elements of the respiratory mask. Snap in the connecting device arranged perpendicular to the protective helmet wall adjustable Locking parts or pins in the locking elements on the respirator can from outside the protective helmet as well as the release of the locking. Due to the lack of a tensile connection between the two locking parts the connection device in the protective helmet and the locking elements on the respirator can rotate relative to the helmet if it is twisted or slipped Respirator the two locking elements come out of engagement.

Similar designs of connectors and combinations of one Protective helmets with a breathing mask are also from DE 41 33 653 A1, the DE 38 41 832 A1, DE 33 02 004 A1, DE 22 13 972 B1, DE 88 00 172 U1, DE 82 25 081 U1, EP 0 471 264 A2, EP 0 357 838 A1, EP 0 336 834 B1, EP 0 236 240 B1, US 4,817,596 A, US 4,734,940 A, US 4,555,815 A and US 4,136,403 A known.

The present invention is based on the object of a protective helmet with a connecting device for the detachable attachment of a strapless respirator to create, in which the protective helmet-side components of the connecting device do not complicate the use of the protective helmet without a respirator, a good fit, a tight fit of the respirator and a enable easy operation of the connecting device.

This object is achieved by the features in the characterizing part of claim 1. The advantage here is that the articulated arrangement of the coupling elements a good fit and a tight seal between the respirator and the face of the user can be reached because the distance between the Hard hat and face is adjustable in wide ranges. Through the rotatable, helmet-side coupling parts also become decoupling-proof Connection when tightening and pressing the respirator on the Face reached without the coupling parts on the hard hat and on the respirator disengage. By being sunk inside the safety helmet and / or adjustable or foldable arrangement of the helmet-side Coupling part, the safety function of the safety helmet is also when used not adversely affected without a breathing mask and simple operation and more precise anchoring of the respiratory mask when using Hard hat and respirator reached. Another advantage is that a structure is possible in which no breakthroughs in the protective helmet are necessary are to hold corresponding device parts.

A training according to claim 2 is also advantageous since it is achieved in that the safety function if the respirator mask is not used in conjunction with the protective helmet the protective helmet even when used without a respirator is adversely affected and the field of vision of the hard hat wearer from out Helmet protruding or loosely hanging parts are not restricted and also curling is prevented.

A training according to claims 3 and 4 is also advantageous because due to the fasteners used a tight fit of the face mask on the face of the user with support over the protective helmet is achieved, with relative movements the elasticity and preload of the respirator in the Edge areas relative to the face is used to maintain the sealing finish.

According to a further embodiment according to claim 5 it is achieved that despite the tensile Connection due to the limp training an optimal adaptation of the Coupling parts to the different face shapes is achieved. In addition, that the elements can dodge more easily when subjected to lateral pressure and above all injuries to the user due to sharp-edged parts can be avoided.

An embodiment according to claim 6 is also possible, as a result of which simple adaptation is possible the coupling parts in their course on different face widths is possible.

Another development of the protective helmet is characterized in claim 7, because due to the shear-resistant arrangement of the coupling parts, avoiding a coupling part in the respiratory direction of the respirator during the relative movement the coupling parts to fix the respirator on the face of the user is prevented. However, this enables one-hand operation in a particularly advantageous manner when putting on the respirator or is achieved in that the Users of such a combination of protective helmet and respirator with a Hand press the mask and thereby the coupling parts in their desired Relative to the generation of a sufficient contact force can adjust while he has the other hand free to position the safety helmet during the Fix the locking movement of the respiratory mask with the protective helmet. In order to is the amount of time that a user will have this combination of a hard hat and respirator needed to be ready for use, significantly shortened.

However, an embodiment variant according to claim 8 is also possible, since an unforeseen one Uncoupling of the coupling parts by determining them above all is definitely avoided while using the respirator, whereby due to the need for solvability, a conscious dissolving process is necessary and therefore the risk of accidents when using this protective helmet is reduced.

The advantage of the development according to claim 9 lies in the fact that the sealing contact one-hand operation is possible on the face mask and by pressing the face mask onto the face Adjustment and locking of the coupling parts is made possible.

In another embodiment according to claim 10, the fastening forces spread over a larger area, which also results in a high tensile strength of the connection is ensured in the different positions.

The further embodiment according to claim 11 ensures that the coupling part for attaching the respirator while using the protective helmet without a respirator, do not adversely affect the user's visual field can and also prevents jamming.

In a further embodiment according to claim 12 it is possible that despite only one Connection device on each side of the respirator mask a multi-point support is achieved on the respiratory mask, which means over the circumferential area a tighter fit can be achieved.

The further development according to claim 13 is also advantageous since it has two connecting devices between safety helmet and respirator Four point support is achieved.

Due to the further embodiment according to claim 14, a loosening of the respiratory mask can also from the face of the fireman or user from above onto the Respiratory tract acting tensile loads are prevented and in connection with the connection devices arranged in the flank area of the protective helmet a simple five-point support similar to the conventional respirator can be achieved with elastic fastening straps.

The is an even better adaptation to different face lengths Design according to claim 15 achieved.

A protected arrangement and the avoidance of incorrect operation is ensured by the Design of the latch clasp according to claim 16 enables.

Through the development according to claim 17 can also in the case of an unintentional Apply pressure, for example when hitting a component with a protective helmet an accidental unlocking of the connecting device on a wall or a door between the protective helmet and respiratory mask.

The design of the locking element according to claim 18 enables, if necessary easier operation by the user when wearing gloves.

Improved mounting and adaptation of the respiratory mask to the face of the User can also be achieved through the training according to claim 19, because the stiffened zones of the respirator mask to exert pressure in Direction of the user's face can be used and accessibility to operate the snap clasp even with a protective helmet and respirator on is better.

By arranging the latch on the holding frame according to claim 20 is also ensures that the latch clasp is held out in a tear-free manner, with a large area Force transmission preferably through the connection between the locking clasp and the mounting frame is possible through a molding process.

An arrangement according to claim 21 is also advantageous, since it makes it accessible to the clasp can still be improved.

A breathing mask holder that is completely decoupled from the movements of the helmet on the user's head is surprisingly simple by the further Training according to claim 22 achieved. The fact that the connecting elements directly are motionally connected to the neck pad or its holder, can move the hard hat relative to these without changing the location of the respirator is changed relative to the face of the user.

Such a decoupling of motion can be achieved through the further development according to claim 23 can be improved as this not only strikes the rear of the user occur on the safety helmet, but also those coming diagonally from above Impacts cannot adversely affect the fit of the breathing mask.

An advantageous further development is also possible through claim 24, whereby the advantages of rigid connection with the protective helmet and possibly simplified Operation of the connection device especially with a gloved Be combined by hand, this latching clasp or Clasp and the band-shaped connecting element in a recessed area the protective helmet shell are arranged.

The invention is described below with reference to the exemplary embodiments shown in the drawings explained in more detail.

Fig. 1

einen Feuerwehrmann mit einer erfindungsgemäßen Kombination aus einem Schutzhelm und einer Atemschutzmaske in vereinfachter, schematischer Darstellung;

Fig. 2

den Schutzhelm mit der zugehörigen Verbindungsvorrichtung zur lösbaren Befestigung der bänderlosen Atemschutzmaske an diesem in ihrer Relativlage vor der Befestigung der Atemschutzmaske am Schutzhelm in Seitenansicht und vereinfachter, schematischer Darstellung;

Fig. 3

den Schutzhelm und die Atemschutzmaske nach Fig. 2 in Gebrauchslage bei am Kopf eines Benutzers angelegter Atemschutzmaske in Seitenansicht, teilweise geschnitten und vereinfachter, schematischer Darstellung;

Fig. 4

den Helm nach Fig. 2 oder 3 in Seitenansicht, geschnitten;

Fig. 5

die Verbindungsvorrichtung zwischen dem Schutzhelm und der Atemschutzmaske in Seitenansicht, geschnitten, gemäß den Linien V - V in Fig. 3;

Fig. 6

eine andere Ausführungsvariante einer Kombination aus einem Schutzhelm und einer Atemschutzmaske mit drei Verbindungsvorrichtungen zwischen diesen in Seitenansicht, teilweise geschnitten und stark vereinfachter, schematischer Darstellung;

Fig. 7

eine andere Ausführungsvariante der Halterung des Kupplungsteils im Schutzhelm mit einer Lagefixierung der Atemschutzmaske gegenüber dem Kopf eines Benutzers in Seitenansicht, geschnitten;

Fig. 8

eine andere Ausbildung des Schutzhelms mit einer zugehörigen Verbindungsvorrichtung zur lösbaren Befestigung der bänderlosen Atemschutzmaske an diesem in ihrer Relativlage vor der Befestigung der Atemschutzmaske am Schutzhelm in Seitenansicht und vereinfachter, schematischer Darstellung;

Fig. 9

eine andere Ausführungsvariante einer Verbindungsvorrichtung zwischen einem Schutzhelm und einer Atemschutzmaske mit einem auf der Außenfläche des Schutzhelms angeordneten Kupplungsteil zum Einhängen eines an der Atemschutzmaske befestigten, bevorzugt gegen Federvorspannung längenveränderbaren Kupplungsteils in Seitenansicht und vereinfachter, schematischer Darstellung;

Fig. 10

einen Teil des Schutzhelms nach Fig. 9 in Stirnsicht, geschnitten, gemäß den Linien XII-XII in Fig. 9.

Show it:

Fig. 1

a fireman with a combination of a protective helmet and a respirator according to the invention in a simplified, schematic representation;

Fig. 2

the protective helmet with the associated connecting device for releasably attaching the tapeless respirator mask to it in its relative position before attaching the respirator mask to the protective helmet in a side view and a simplified, schematic representation;

Fig. 3

the protective helmet and the respirator mask according to FIG. 2 in the use position with a respirator mask applied to the head of a user, in a side view, partly in section and a simplified, schematic representation;

Fig. 4

the helmet of Figure 2 or 3 in side view, cut.

Fig. 5

the connection device between the protective helmet and the respirator in side view, cut, along the lines V - V in Fig. 3;

Fig. 6

another embodiment variant of a combination of a protective helmet and a respiratory mask with three connecting devices between them in side view, partially sectioned and greatly simplified, schematic representation;

Fig. 7

another embodiment variant of the mounting of the coupling part in the protective helmet with a positional fixation of the respiratory mask relative to the head of a user in a side view, cut;

Fig. 8

another embodiment of the protective helmet with an associated connecting device for releasably attaching the tapeless respirator to this in its relative position before attaching the respirator to the protective helmet in a side view and a simplified, schematic representation;

Fig. 9

another embodiment variant of a connecting device between a protective helmet and a respiratory mask with a coupling part arranged on the outer surface of the protective helmet for hanging a coupling part fastened to the respiratory mask, preferably variable in length against spring preload, in a side view and a simplified, schematic representation;

Fig. 10

9 a part of the protective helmet according to FIG. 9 in frontal view, cut, according to lines XII-XII in FIG. 9.

In Fig. 1, a fireman 1 is shown, the one as personal protective equipment Helmet 2 and a respirator 3 wearing a respirator 4, to which also the bottles 5, in which the breathing air is stored under high pressure, belong. The firefighter's personal protective equipment 1 is used to help him to make independent of the ambient air, so that, as in the present embodiment shown fighting a fire with a jet pipe 6 also in a Poison gas-enriched and possibly also oxygen-poor atmosphere possible becomes.

The tapeless respiratory mask 3 is connected to a via a connecting device 7 Flank area 8 connected in the area of the ears of the fireman 1 and exists from two coupling parts 9 and 10, one of which on the protective helmet 2 and the another is attached to the respirator 3. The respiratory mask 3 also includes a viewing window 11, a mounting frame 12 for this viewing window 11 and a sealing edge 13 with which a sealing closure between the respirator 3 and a face 14 of the fireman 1 is made. The The breathing air from the bottles 5 is metered via an automatic lung regulator 15. The supply of the lung regulator 15 with compressed air from the bottles 5 can can be controlled via a control valve 16.

Of course, it is possible for the fireman 1 to have only one bottle Breathing air or several bottles of breathing air with him. Furthermore, it is also possible that instead of the container devices used regeneration or circulation devices will. It is also irrelevant to the present invention whether normal pressure breathing apparatus can be used with a regulator or overpressure systems.

2 to 5, the protective helmet 2 and the connection device 7 with this associated respirator 3 shown in detail.

The protective helmet 2 comprises a protective helmet shell 17, in which a support frame 18 for adaptation is arranged to the different head dimensions of the user. A Head width of the support frame 18 can be adjusted by means of an adjusting device 19 will. A support plate is on the support frame 18 in the flank area 8 of the protective helmet 2 20, for example fastened via rivets 21 which, as can be seen better from FIG. 3 is, a pivot axis 22 of a joint assembly 23 for holding a coupling part 24 which is formed in the present case by a locking band 25, and an axis of rotation 26, around which a chin strap 27 is rotatable, is supported.

Around this pivot axis 22 there is also a visor 28 made of one in FIGS 3 shown in full lines, rest position within an interior 29 by the protective helmet shell 17 is enclosed in one shown in dashed lines Swing out working position.

This visor 28 is predominantly used without the one at a distance from the protective helmet 2 shown respirator 3 thought. However, it is also possible with appropriate Design of the visor 28 and the respirator 3 at the same time to use with each other.

The respiratory mask 3 comprises the viewing window 11, which is in the mounting frame 12 is supported. At the support frame 12, the sealing edge 13 connects to the sealing end of the respiratory mask 3 between this and the face 14 of a User serves. A holding bracket 30 is arranged on this sealing edge 13, the at two fastening points 31, 32 of the respiratory mask 3 on the sealing edge 13 intervenes. Via a protruding over the bracket 30 in the direction of the viewing window 11 Cantilever arm 33 is a further coupling part 34, in the present case for example, a latch clasp 35 is arranged. This latch clasp 35 consists of best seen in Fig. 5, from a U-shaped housing part 36 which consists of a Base 37 and two legs 38 and 39 arranged perpendicular thereto are formed. In the area of an end 40, the two legs are in the area of their upper edge 41 connected by a crossbar 42. Between the two Legs 38 and 39, a push button 43 is used, which has a torsion spring 44 is biased towards the base 37 of the housing part 36.

This push button is about an axis of rotation 45 against the action of the torsion spring 44 biased or pivotable to the base 37 in the region of the crossbar 42. A locking lug 46 is on the opposite of a push button 47 from the crossbar 42 facing away from the end of the push button 43.

In order to optimally adapt the respiratory mask 3 to the respective user reach, the coupling part 34 is also about a pivot axis 22 'of a joint arrangement 23 with the bracket 30 and the cantilever 33 articulated and thus rotatably connected.

The opposite coupling part 24 assigned to this coupling part 34 consists of This case consists of a locking band 25, which is tensile, but flexible. By doing The end portion facing the coupling part 34 has this locking band 25 in a small amount Provide spacing 48 arranged consecutively. These point in the direction the pivot axis 22 'has an obliquely rising flank 49, while that of the protective helmet shell 17 facing locking flank 50 substantially perpendicular to a surface 51 of the locking band 25 is aligned.

As can be seen better from FIG. 5, the push button 43 ratchets when the Locking band 25 between this and the base 37 of the coupling part 34 via the sloping flanks 49 upwards and snaps behind the locking flank 50. The breathing mask 3 can thus correspond to the respective shape of the face 14 are pressed against the face 14 with sufficient pressure, so that after completion that of the face mask 14 in the direction of the face 14 Pressure to adjust the mask supported by the support frame 18 of the Protective helmet 2 firmly and thus with its sealing edge 13 sealing on the face 14 of the Firefighter 1 is present, because of the snapping of the latch 46 behind one Locking flank 50, the breathing mask 3 in the opposite to the protective helmet 2 Direction cannot move away from this. Does Firefighter 1 do that Feeling that the mask is too loose, he only needs the mask even more press against protective helmet 2 to achieve a sufficiently firm fit.

Likewise, it is also possible to quickly remove the respiratory mask 3 from the face 14 to remove the fireman 1 because only by simultaneously pressing the Push button arranged on both sides in the flank areas 8 of the protective helmet 2 Coupling parts or locking clasps 35, which also with a gloved Finger can be easily executed, the snap connection between the snap clasp 35 and the locking band 25 lifted and the breathing mask 3 in the direction of Hard hat 2 can be pulled off.

The use of the bracket 30 ensures that despite the use only one connecting device 7 in the area of each of the two flank areas 8 of the protective helmet 2 due to its support at two fastening points 31 and 32 on the sealing edge 13 of the breathing mask 3 essentially a 4-point support is achieved.

By mounting the coupling part 24 or locking part on the pivot axis 22 can the position of the respirator 3 to the length of the face 14 of the fireman 1 can be adjusted without causing unwanted tension between the Chin of the user and the protective helmet 2 comes.

As can further be seen from the illustration, in particular in FIG. 3, the respirator mask 3 so arranged on the face 14 of the fireman 1 that the Sealing edge 13 between the face 14 and a helmet band 52 of the support frame 18 comes to rest.

Before the respirator 3 is put on, the setting device 19 can be used Diameter of the support frame 18 are increased so that the sealing edge 13 between the helmet band 52 can be inserted, whereupon the tight fit of the Hard hat 2 the diameter of the support frame 18 with the adjusting device 19th can be tightened again as far as this ensures that the protective helmet 2 is firmly seated on the head of the fireman 1 is necessary.

From Fig. 4 it can also be seen that the interior of the protective helmet 2 is a support net 53 comprises, which by means of adjusting straps 54 in height compared to the Helmet band 52 can be fixed.

The coupling part 24, namely the locking band, is on the helmet band 52 via the support plate 20 25 rotatably mounted about the pivot axis 22.

Furthermore, a neck pad 55 is arranged on the helmet band 52 of the support frame 18, the should allow a firm fit of the protective helmet 2 and at the same time the effect of injury should turn off in the event of blows to the protective helmet 2.

In the protective helmet shell 17, a reinforcing element faces in the apex area 56 arranged, which also, for example, a structure-borne microphone 57 of a radio system can record.

As can be seen better from FIG. 5, the holding bracket 30, which the coupling part 34, which, for example, stores the latch clasp 35, via adapter bracket 58, e.g. made of stainless steel or plastic connected to the sealing edge 13 of the respirator 3. This also allows the straps to be attached to such a respirator 3 usually provided anchoring elements 59 of the respiratory mask 3 be used relative to the safety helmet 2.

It is essential in this type of connection device that the helmet-side coupling part 9, 24 and the coupling part 10, 34 assigned to the respiratory mask 3 attached to the protective helmet 2 or the support frame 18 and the breathing mask 3 in a thrust-resistant manner are. The advantage of this shear-resistant attachment is that during the Inserting the coupling part 9 or 24 into the coupling part 10 or 34 also at strong pressure exerted a relative movement between the two coupling parts is secured without the two coupling parts coming out of engagement, since except for setting the distance of the respiratory mask 3 from the protective helmet 2 required relative movement between the two coupling parts no relative movement the same with respect to the protective helmet 2 or the respiratory mask 3 is possible, as is the case for example with known protective helmets, in which the against each other adjustable holding elements of the coupling part in an opening or Deepening of the protective helmet shell 17 or protective helmet 2 for absorbing tensile forces are attached in the direction of the respiratory mask 3, but with compressive forces or Thrust forces acting from the respiratory mask 3 in the direction of the protective helmet 2, can unhook from these recesses or openings.

In addition to the tensile strength, in particular the coupling part 24, that is to say the locking band 25 in this case it is also advantageous if this coupling part 24 is designed to be pressure-resistant is to push and ratchet this locking band 25 through the To enable locking clasp 35 with one-hand operation.

Especially when using the combination of a locking band with a locking clasp it is possible that after the breathing mask 3 has been hooked in with the locking clasps 35 the breathing mask on the locking straps 25 of the two connecting elements can be pressed with one hand towards the face of the user, where necessary alternating in the left and right half of the face the necessary Preload pressure for tightly fitting the respiratory mask 3 on the face of the User is built, which can be used to turn on the second hand to build up the protective helmet 2 in the direction of the breathing mask 3, so that a firm pushing together and thus a secure and tight fit the respirator 3 is reached on the face of the user.

However, this also makes it possible to keep the respirator mask loose not tight, on the face 14 of the user, but with those already engaged Coupling parts 24 and 34 to hold, which means the set-up time for the tight fitting the respiratory mask 3 can also be reduced.

It can also prove to be advantageous if the coupling parts 24, 34, in particular if one of these coupling parts is designed as a locking band 25, over a certain total length preset so that even with large differences in dimensions of the face a rapid adaptation of the respiratory mask 3 to the face 14 of the User is possible.

Furthermore, it is particularly advantageous that the coupling parts 9, 10 and 24, 34 the coupling parts are locked in their engaged position and only when necessary, i.e. can be solved by a conscious activity of the user. This will both put on the respirator 3 facilitates, as well as an accidental loosening of the Respiratory mask 3 safely switched off from protective helmet 2.

6 shows a further embodiment variant of a connecting device 7 between the protective helmet 2 and the respiratory mask 3 shown.

In addition to the respective opposite flank areas 8 of the Protective helmet 2 arranged connecting elements 60, 61, of which in Fig. 1st to 3 and 5 only the connecting element 61 and in FIG. 4 only the connecting element 60 can be seen, is a further connection element in the protective helmet 2 according to FIG. 6 62 provided. This connecting element 62 consists of a tether 63, in which an opening 64 in an anchoring element 65, e.g. a hook that is attached or molded on the sealing edge 13 of the respiratory mask 3 is.

The anchoring element 65 is here, for example, in the plane of symmetry Respiratory mask 3 is arranged on the sealing edge 13.

The holding strap 63 is inside the protective helmet 2, for example by means of tabs 66 guided and at its end facing away from the opening 64 with a cable pull 67 connected, which is fixed on a coil 68. The coil 68 is in an opening 69 the protective helmet shell 17 mounted on a drive shaft 70. On this drive shaft is also in the interior 29 of the helmet, the coil 68 and on the outside, so above the outer surface of the protective helmet 2, an actuator 71, for example a rocker arm is provided.

This actuator is about a pivot axis passing through the drive shaft 70 72 from a locked on the surface of the protective helmet 2 Resting position in the clamping position drawn in full lines in FIG. 6, in which e.g. by rotating the actuator 71 or the drive shaft 70 in the sense of an arrow 73 by turning the retaining strap counterclockwise 63 extended in the direction of the respiratory mask 3 from the interior 29 of the protective helmet 2 and by turning clockwise into the interior 29 can be moved.

This arrangement opens up the possibility of the respiratory mask 3 not to hold only in the two flank areas 8 of the protective helmet 2, but additionally also in the forehead area of the firefighter 1. This allows a closer fit of the Sealing edge 13 of the respirator 3 can be achieved or the risk that due to a slight shift of the protective helmet 2 relative to the head of the fireman 1 a leak can occur, which is particularly Normal pressure respirators pose a danger to fireman 1 when inhaled the breathing air and through the leak in the interior of the Respirator 3 can lead to penetrated toxins.

If the respirator is not used, you can wind it up accordingly Cable 67 on the coil 68, the tether 63 in the interior 29 of the protective helmet 2 spent or, if necessary, between the visor 28 and the inner surface the helmet shell 17 are held.

The details of the connecting elements 60 and 61 between the protective helmet 2 and the Respiratory mask 3 correspond to those described with reference to FIGS. 1 to 5 are, so that here also the same reference numerals for the same parts, such as for the coupling part 24 and 34 and the bracket 30 and for the by the Locking buckle 35 formed coupling part 34 can be used.

In Fig. 7 a protective helmet 2 is shown, which is a direct attachment of the respirator 3 enables via the connecting device 7.

The formation of the protective helmet 2 or respiratory mask 3 and the connecting device 7 corresponds, for example, to that previously shown in FIGS. 2 to 5 described embodiment, with any other embodiment of the helmet can be used.

The support plate 20 for mounting the coupling part 24, namely the locking band 25, in The inside of the protective helmet 2 is corresponding via an axis 78, for example one trained rivets on a crossbar 79, which the helmet band 52 in the two flank areas 8 of the protective helmet 2 connects to each other, rotatably mounted.

On this support plate 20, as already described above, next to the coupling part 24 also the chin strap 27 is articulated adjustable.

Since the protective helmet 2 from the drawn in full lines in the in dashed lines Line drawn position, for example, can move in the event of impact, there is now a risk that the respirator mask via the coupling parts 24 or 34 3 from the face 14 of the fireman 1 in the opposite direction is moved away and leaks between the sealing edge 13 and the face 14 of the fireman 1 arise.

To prevent this, the pivotable support plate 20 is tensile Spacer 80 with the neck pad 55 connected in motion, which in turn is fixedly connected to the helmet band 52.

This causes that despite the movement of the support plate 20 from the in full lines in Direction of position 81 drawn in dashed lines in the event of impact on the protective helmet 2 in the direction of an arrow 82 a distance 83 between the Neck pad 55 and the attachment point of the spacer 80 on the support plate 20 remains constant, i.e. the support plate 20 is in one of the impact Distance 83 pivoted in the opposite direction, and therefore the relative position remains the pivot axis 22 and thus also the coupling part 24 relative to the Face 14 of fireman 1 unchanged.

This can due to the pivotable mounting of this support plate 20 the protective helmet 2, for example in the direction of arrow 82, impacts or pulling or pushing movements that lead to a relative displacement of the protective helmet shell 17 lead to face 14 of fireman 1, none Leaks between the face 14 and the respirator 3 lead.

8 shows a further embodiment variant in which a connecting element 84 is provided, in which the coupling part 34, for example the latch clasp 35 outside, for example in a recess of the protective helmet shell 17, on the protective helmet 2 is arranged.

In addition to the recess for receiving the coupling part 34, another can also Depression 85 may be provided, in which the formed by the locking band 25, articulated on the bracket 30 connecting element 84 from the edge of the protective helmet shell 17 extends to the latch clasp 35.

To adapt the respiratory mask 3 to different face shapes or face lengths to be able to carry it out easily, it is advantageous if the recess 85 from the coupling part 34, which is articulated about the pivot axis 22 on the protective helmet shell 17 is mounted in the direction of the helmet rim or the respirator mask 3 is designed to expand conically. This makes it possible for that in the snap clasp 35 held locking band 25 in relation to the protective helmet 2 different angular positions can take.

Furthermore, FIG. 8 shows another embodiment variant for the formation of locking elements 86 on narrow side edges 87 of the connecting element 84 of the Coupling part 24 for the locking band 25 shown in dashed lines. The shape of the Seen in cross section, latching elements 86 correspond to the shape of the latches 48 with their Flank 49 and latching flank 50. The strength of the latching elements 86 corresponds to one Thickness of the locking band 25. That only on the narrow side edges 87 with locking elements 86 Executed locking band 25 acts with a locking clasp 35 specially designed for this purpose together, the drive connection between the hollow cuboid Locking clasp and the locking elements by in the direction of the locking band 25th prestressed spring arms. The preloaded spring arms can be unlocked preferably by a pressure movement applied in the direction of the locking band 25, the spring arms swinging out and thus a free movement of the Locking band 25 is given in the locking clasp 35 in the direction of the locking band. A Locking takes place only when the pressure on the spring arms is removed. To be safe To achieve connection between the two coupling parts, it is advisable to form the locking elements and spring arms on both sides. However, it is also possible to provide only a one-sided catch arrangement.

To a corresponding lateral tensile load or radial tensile load on the To prevent breathing mask 3, it is also possible, for example with the mounting frame Inject 12 metal parts or plastic holding parts, the side protrude beyond the limitation of the respiratory mask 3 and at which the pivot axis 22 is stored for the locking band 25. In this case, the holding bracket 30 can omitted.

9 and 10 is another embodiment of the connecting device 7 between the protective helmet 2 and the respiratory mask 3 shown.

A connecting element 88 of the connecting device 7 consists of a coupling part 89 on the protective helmet 2 and a coupling part 90, which with the Respirator 3 is connected to movement.

The coupling part 89 is, as can also be seen better in particular from FIG. 10, on an outer side of the protective helmet shell 17 arranged in a recess and exists from a pivotable folding arm 91 which is approximately parallel to the outer surface of the protective helmet 2 aligned axis 92 from a drawn in full lines, within a recess 93 of the surface of the protective helmet shell 17 Rest position adjustable in the swung out position drawn in dashed lines is. The axis 92 is in turn supported in a support member 94 which over a Fastening element 95, the longitudinal axis 96 of which is approximately perpendicular to the protective helmet shell 17 is aligned and around which the support part 94 with the folding arm 91 also can be pivoted, but does not have to be attached to the protective helmet 2.

By a different distance 97 and 98 of a contact surface 99 of the folding arm 91 and the axis 92 as well as the axis 92 and a projection 100 can be exploited the spring travel of a spring element 101, e.g. a leaf spring or one Helical compression spring, between an attachment of the fastener 95 and one Inside 102 of the protective helmet shell 17 a relative movement of the folding arm 91 from the rest position lying within the recess 93 in the hook position for hanging a hook 103, for example against the spring action of the telescopically adjustable coupling part 90, which is rigid on the breathing mask 3 or is pivotally attached.

In the rest position of the folding arm 91, it is located within the recess 93, so that the safety helmet 2 snags or hangs on protruding parts is prevented.

If, on the other hand, the respiratory mask 3 is to be connected to the protective helmet 2, the Folding arm 91 from the full lines to the position shown in dashed lines pivoted outwards and the hook 103 of the coupling part 90 into an opening 104 mounted. The coupling part 90 can, for example, be any one from the state correspond to the known design. So it can be made from two telescopic, counter a spring action in the longitudinally movable parts. The firm Fit of the breathing mask 3 on the face of the user is achieved in that the Respirator mask provided on the coupling part 90, relative to the two mutually adjustable parts arranged catches can be anchored so that the Telescopic effect of the coupling part 90 after the respiratory mask has been firmly pressed on 3 is lifted on the user's face and a rigid connection between the protective helmet 2 and the respiratory mask 3.

The remaining parts of the protective helmet 2 or the respiratory mask 3 can be used with the Embodiment according to FIGS. 11 and 12 corresponding to those previously described Embodiments are formed, which is why the same for the same parts Reference numerals have been entered and for a more detailed explanation and description these parts are omitted in this embodiment.

The advantage of this solution is that when the connection device is not in use 7 between the protective helmet 2 and the respiratory mask 3 an almost smooth or flat outer surface of the protective helmet shell 17 achieved without protruding parts and when the folding arm 91 forming the coupling part 89 swings out with the appropriate design of lateral, for example bead-shaped Projections 105 are also still substantially within the outer perimeter of the Protective helmet shell 17 is located, however, by the rotatable mounting of the folding arm 91 around the axis 92 an independent of height movements of the protective helmet Holding the breathing mask 3 achieved and a more precise adaptation to different Face lengths of the user between protective helmet 2 and respiratory mask 3 is achievable.

Finally, it should be mentioned that in part for a better understanding of the invention Solution of individual parts purely schematically or to scale or are disproportionately enlarged or reduced.

List of reference symbols

1

Firefighter

2nd

Hard hat

3rd

Respirator

4th

Breathing apparatus

5

bottle

6

Steel tube

7

Connecting device

8th

Flank area

9

Coupling part

10th

Coupling part

11

Viewing window

12th

Mounting frame

13

Sealing edge

14

face

15

Regulator

16

Control valve

17th

Hard hat shell

18th

Support frame

19th

Adjusting device

20th

Support plate

21

rivet

22

Swivel axis

23

Joint arrangement

24th

Coupling part

25th

Locking band

26

Axis of rotation

27

Chin strap

28

Visor

29

inner space

30th

Bracket

31

Attachment point

32

Attachment point

33

Cantilever

34

Coupling part

35

Latch clasp

36

Housing part

37

Base

38

leg

39

leg

40

The End

41

edge

42

Crossbar

43

Push button

44

Torsion spring

45

Axis of rotation

46

Latch

47

Push button

48

Rested

49

Flank

50

Latching flank

51

surface

52

Helmet band

53

Support net

54

Adjusting strap

55

Neck padding

56

Reinforcing element

57

Structure-borne sound microphone

58

Adapter bracket

59

Anchoring element

60

Fastener

61

Fastener

62

Fastener

63

Tether

64

opening

65

Anchoring element

66

Tab

67

Cable

68

Kitchen sink

69

opening

70

drive shaft

71

Actuator

72

Swivel axis

73

arrow

74

75

76

77

78

axis

79

Crossbar

80

Spacers

81

position

82

arrow

83

distance

84

Fastener

85

deepening

86

Locking element

87

Narrow side edge

88

Fastener

89

Coupling part

90

Coupling part

91

Folding arm

92

axis

93

deepening

94

Support part

95

Fastener

96

Longitudinal axis

97

distance

98

distance

99

Contact surface

100

head Start

101

Spring element

102

inside

103

hook

104

opening

105

head Start

Claims (24)

1. Combination of a protective helmet and of a strapless breathing mask, which is releasably attachable to the protective helmet by a connection device, and has two connection elements, each of which is secured in the region of one of the two flank areas of the protective helmet respectively facing the ears of a user, and is further secured in one of the side areas of the breathing mask, and each connecting element is formed by two interlocking coupling parts which are releasable from one another, of which one coupling part is attached to the protective helmet and the other coupling part of the connection device is attached to the breathing mask, and the coupling part (10, 34) on the protective mask side is mounted to pivot via a pivoting axis (22') on the breathing mask (3), and both coupling parts (2, 10, 34, 82, 20) are adjustable and securable relative to one another and the breathing mask (3), and the protective helmet (2) may be secured at a varying distance from one another by the displacement of the coupling parts (2, 10, 34, 82, 90) relative to one another, characterised in that the coupling part (9, 24) on the helmet side is connected to the protective helmet via a pivotal axis (22) aligned roughly perpendicular to the flank areas (8) of the shell (17) of the protective helmet, and is arranged in the inner space (29) of the protective helmet (2) or relative to an outer side of the protective helmet shell (17) in a countersunk manner and/or adjustably for height in the direction of the pivotal axis (22) relative to the outer side, the pivotal axis (22) being mounted on the protective helmet shell (17) and/or on the support frame (18) and/or an inner helmet.
2. Combination of a protective helmet and a strapless breathing mask according to claim 1, characterised in that the coupling part (9, 24) on the helmet side is movable in an outward direction from an inoperative position lying within a defining line of the protective helmet (2).
3. Combination of a protective helmet and of a strapless breathing mask according to claim 1 or 2, characterised in that the coupling part (9, 24) on the helmet side is formed by a locking strap (25), and the coupling part (10, 34) on the protective mask side is formed by a latching closure (35) mounted to pivot via the pivotal axis (22') on the breathing mask (3).
4. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 3, characterised in that the two coupling parts (9 10, 34, 89, 90) are adjustable and/or securable telescopically relative to one another.
5. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 4, characterised in that at least one of the coupling parts (9, 24) having tensile strength, also has bending looseness.
6. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 5, characterised in that at least one of the coupling parts (9, 24) is designed to be deformable about axes extending transversely to its longitudinal extension.
7. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 6, characterised in that each of the coupling parts (9, 10; 24, 34; 89, 90) is supported to resist sliding in the longitudinal direction of the connection element on the breathing mask (3) and/or the protective helmet (2) or the support frame (18) or the inner helmet.
8. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 7, characterised in that the two coupling parts (9, 10; 24, 34; 89, 90) are if necessary fixed releasably in their engagement position.
9. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 8, characterised in that one coupling part (9, 24) is formed by a locking strap (25), and the other coupling part (10, 34) of the connection device (7) is formed by a latching closure (35).
10. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 9, characterised in that the latches (48) of the locking strap (25) are aligned perpendicularly to the longitudinal extension of the coupling part (9, 24), and face the protective helmets (2) in locking flanks (50) of the latches (48) which are aligned roughly perpendicularly to a longitudinal axis of the coupling part (9, 24).
11. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 10, characterised in that the coupling part (9, 24) mounted on the protective helmet (2) has an inoperative position lying within a defining line of the protective helmet (2).
12. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 11, characterised in that the coupling part (10, 34) particularly formed by the latching closure (35) is secured on a retaining strap (30) extending in the longitudinal direction of the lateral seal (13) of the breathing mask (3).
13. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 12, characterised in that the retaining strap (30) is connected to the breathing mask (3) by two attachment points (31, 32) spaced apart in the longitudinal direction of the lateral seal.
14. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 13, characterised in that a further connection element (62) is located between a portion of the breathing mask (3) facing the forehead region of the user and the protective helmet (2), preferably in a plane of symmetry located symmetrically between the flank areas (8) of the protective helmet (2) and extending perpendicularly to the pivotal axis (22) of the coupling parts (9, 24) (Figure 6).
15. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 14, characterised in that the coupling part (10, 34) associated with the protective breathing mask (3) is attached to the protective breathing mask (3) via at least one joint arrangement (23) having a pivotal axis (22) located substantially parallel to the pivotal axis (22')of the coupling part (9, 24).
16. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 15, characterised in that the latching closure (35) has a casing part (36) connected to the retaining strap (30) and has a roughly U-shaped cross-section, the two projecting legs (38, 39) of the casing portion (36), at least at one end (40) along the medial longitudinal plane of the same, connecting the two edges (41) of the two legs (38, 39), spaced from the base (37) transversely to the longitudinal axis of the profiled casing portion (36).
17. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 16, characterised in that the casing portion (36) supports a push-button (43), which, in its latched position engaging in the latches (48) of the locking strap (25), is flush with the upper edge (41) of the legs (38, 39) and/or of the cross-web (42).
18. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 17, characterised in that the locking elements (86) are located on the edges of the narrow sides (87) of a strap with tensile strength, and the latching closures (35), in the form of hollow cuboids, are provided in the wall areas facing the edges of the narrow sides (87) with elastically deformable resilient arms initially biased in the direction of the locking strap (25).
19. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 18, characterised in that the retaining strap (30), or a retaining element of the latching closure (35), is located in the transitional area between the securing frame (12) and a viewing window of the protective breathing mask.
20. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 19, characterised in that the latching closure (35) is secured on a securing frame (12) of a viewing window (11) of the protective breathing mask (3), e.g. by a shaping procedure.
21. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 20, characterised in that the latching closure (35) is located on a gibbet (33) secured to project forwards from the retaining strap (36).
22. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 21, characterised in that the pivotal axis (22) of the coupling part (24) is located on a support plate (20), which is pivotal on the support frame (18) and/or an inner helmet and/or the shell (17) of the protective helmet, about an axis (78) located at a spacing from the pivotal axis (22), and in that this support plate is kinetically connected to an extensionally rigid spacer (80) with the neck padding (55) or its securing means.
23. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 22, characterised in that the support plate (20) is connected via tensionally rigid spacers (80) to head supports in a plurality of distances extending radially to the axis (78).
24. Combination of a protective helmet and of a strapless breathing mask according to one or more of claims 1 to 23, characterised in that a coupling part (10, 34), particularly a latching closure (35) or a clamping closure for a strap-like connection element (60, 61) is located or mounted via a joint arrangement (23) having at least one pivotal axis (22) on the outer side of the protective helmet (2) in the flank area (8).

Images