EP2802230B1 - Safety helmet, in particular for mountain climbers and tree climbers - Google Patents

Description

The invention relates to a protective helmet, in particular for mountaineers and tree climbers, with a helmet shell, with an interior comprising a head contacting assembly at least from a carrying basket, a headband and a neck band, and means for securing this assembly to the helmet shell.

A hard hat of this kind is from the document DE 87 14 490 U1 known. This known protective helmet is a basic helmet, which can be adapted to different tasks under different operating conditions by changing attachment elements. The helmet consists of a helmet shell and a minimum interior trim. The interior consists of a cruciate ligament, with which the helmet is worn on the head and which ensures an impact-resistant distance between the head and the helmet shell. The helmet has on its outer circumference on the side and the rear part of the helmet comprehensive projection containing four recesses for attachment of the cruciate ligament and other recesses for attachment of additional attachments at the bottom. The basic version of the helmet can be used without any accessories as a simple universal helmet. The additives can be added or removed as needed. At the widest points of the helmet there is a recess on the outside of the projection surrounding most of the helmet. This is the attachment point of a face and ear protection. This protection consists of a visor and two earmuffs, each comprising a wire hanger and a hearing protection capsule. The face and hearing protectors are replaced by a common connector plugged into the tab. attached to the outside of the helmet. The disadvantage of such a helmet equipped so that in the event of obstacles that move past the helmet, get caught behind the temples of the ear defenders and / or the visor and hinder the wearer of the helmet during use or tear him the helmet off his head and the Thereby endanger carriers.

Other documents that describe the attachment of helmet accessories such as face and / or ear protection on the outside of a protective helmet, are DE 28 26 636 C2 . DE 29 07 054 A1 . DE 33 14 595 C2 . DE 35 90 667 C2 . DE 94 10 596 U1 and DE 297 08 134 U1 , In the case of the protective helmets known from these documents, the wearer of the helmet can likewise be hindered or endangered during use if obstacles are caught on the temples of the hearing and / or face protection.

Other documents that deal with the inter-attachment of the trim assembly and helmet shell, but not with the attachment of helmet accessories on the outside of the helmet shell, are listed below.

From the document DE 10 2004 004 044 B4 For example, a protective helmet is known in which the interior equipment, which comprises a head-contacting assembly of a carrying basket, a headband and a neck band, has connecting elements which are inserted into a shield, which in turn is fastened to the lower edge of the helmet shell.

From the document DE 698 11 738 T2 is known a protective helmet in which the interior, which comprises a head-contacting assembly of a carrying basket, a headband and a neck band, is secured by means of anchor tabs which are inserted into slots at the bottom of a double-walled helmet shell in four places. The headband is made of a flexible material that can easily adapt to the size and shape of the wearer's head.

From the document WO 2005/027671 A1 a safety helmet is known, in which a shock absorption unit is arranged in the helmet shell, which the rest Interior surrounding a head-contacting assembly comprising a carrying basket, a headband and a neck band. On the inside of the helmet shell projections are present, to which the shock absorption unit and the interior trim assembly can be fastened by means of screws. In this known safety helmet, the shock absorption unit is formed so thick that it is possible to provide in its outer side opposite the helmet inner side a recess in which a transmitter / receiver can be accommodated with an outwardly leading connection line.

All known protective helmets, which are mentioned above, have in common that a force acting from above on the helmet force on the interior and in particular on a basket formed of a cruciate ligament is substantially fully transferred to the head of the helmet wearer. The cruciate ligament can only fulfill a shock absorption function to a certain extent because it also has the task of holding the helmet firmly on the wearer's head. Accordingly, there is also a need for a protective helmet with improved shock absorption capability.

Furthermore, all the known protective helmets mentioned above have in common that a force acting laterally on the helmet is likewise transmitted substantially fully to the head of the helmet wearer. In all known helmets, the interior extends at least at the bottom of the helmet right up to the helmet shell, so that at most a padded band, which is often present at the bottom of the helmet between the interior and the helmet shell, could provide some shock absorption.

Finally, the problem arises that a protective helmet intended for mountaineers and tree climbers must have a chinstrap. The chinstrap must be attached to the inside of the helmet shell and to the trim assembly. When pulling is applied to the chinstrap, eg during a pull test, which is required for a certification of the safety helmet, the position of the attachment points of the chinstrap to the safety helmet must remain stable. It must therefore not separate during the tensile test, the interior of the helmet shell. When using the helmet, the chinstrap should be ignored from external force or impact on the safety helmet keep this safe on the head.

The object of the invention is to provide a protective helmet of the type mentioned above and known from the first-mentioned document in such a way that it has a substantially improved shock-absorbing capacity both for forces acting on it from above and for forces acting on it laterally.

The shock absorption capacity should also be improved in a protective helmet, the subject of the non-prepublished German patent application no. 10 2010 027 012.1 forms. In this older proposal of the applicant around the interior trim assembly around a free space is available, which provides a distance of up to about 4 cm between the interior and the inside of the helmet shell on all sides. For laterally acting forces, this distance is used for impact energy dissipation by deformation of the helmet shell and trim assembly. Although the standard prescribes a distance between the top of the interior trim assembly and the inside of the helmet shell located above it, but the well-known protective helmets protect only against impact from above, if at all.

The object is inventively achieved in that the fastening means comprise at least three support arms designed as spacers, which protrude from the basket in the temple area laterally downwards or in the back of the head back down that the helmet shell and the support arms are dimensioned so that the interior trim assembly is kept at a constant distance from the helmet shell at its entire outer contour, so that there is a free space between the interior trim assembly and the helmet shell around the interior trim assembly for accommodating helmet accessories comprising at least ear protection capsules together with mounting straps and a tensioning unit for the neckband, as well as fastening devices for ear protection and for other helmet accessories, which comprises at least a face shield and a chin strap, that the support arms are each releasably secured to the helmet shell with its free end and that the releasable attachment of the rear downwardly projecting support arm a longitudinal direction thereof effective latching attachment to a rear attachment point on or in the helmet shell and in addition a suspension of this support arm comprises at an upper above the detent attachment inside the helmet shell upper attachment point.

In the protective helmet according to the invention, there is a neck band tensioning unit and fastening devices for at least ear protection and hearing protection capsules within the helmet shell, so that also support bracket and retaining arms of face and hearing protection are within the outline of the helmet, so that on its outside no possibilities for the hooking of obstacles such as branches and the like offers. In addition, if the ear defenders are not needed, they may be pivoted rearwardly within the outline of the hard hat in the space between the trim assembly and the helmet shell so that the helmet provides even fewer obstacles for hooking. Since the attachment devices for the face protection are also located in the free space, the visor can be designed such that it does not provide hooking possibilities for obstacles such as knots or the like in the folded-up or folded-down state. The arranged as a spacer between the trim assembly and the helmet shell support arms and the space created thereby due to an all-round distance of up to 4 cm between the trim assembly and the inside of the helmet shell offer the possibility of an externally applied to the helmet force by deformation of the To dampen helmet shell and the interior trim assembly, so that the helmet according to the invention has a total of better shock absorption capacity, because less force is transmitted to the head of the wearer. The force can, as already explained above, be exerted on the helmet from above or from the side. In lateral force exercise then the shock absorption is done by pivoting and moving the helmet shell against the interior trim assembly. This is made possible by the invention over the prior art wide space between the interior trim assembly and the helmet shell, in which not only the helmet accessories can accommodate, but also with the help of connected to the helmet shell support arms that not only act as spacers, but under tensile stress from the helmet shell forth when the same from deform the top or side itself and the basket to which they are connected, and thus consume the energy supplied by the impact, thereby protecting the head from shock.

In the case of the protective helmet according to the invention, the wide free space provided between the helmet shell and the interior equipment around the interior equipment makes it possible to receive helmet accessories comprising at least ear protection capsule hearing protection and a neck band tensioning unit. In the protective helmet according to the invention, the support and the shock absorbing function in the basket are made of a stiff, elastically flexible material in combination with the helmet shell, which has a certain elastic deformability at least about its longitudinal axis. In fulfilling the shock-absorbing function of the support basket is therefore supported by the helmet shell, since the laterally projecting down support arms support with their free ends the basket on the helmet shell from such that at an external pressure on the helmet shell from above the support arms through the helmet shell loaded on train and endeavor to deform the helmet shell inward. When lateral force on the helmet, the shock absorption function is additionally supported by the fact that the helmet shell, which is connected only in three attachment points with the interior and has a wide distance from the same, is moved relative to the interior equipment. By this displacement, but also by tensile and compressive forces, which are transmitted via the helmet shell on the laterally projecting downwardly projecting support arms of the interior trim assembly, they are deformed, whereby a force acting on the helmet shell shock pulse is mitigated.

According to the invention, the detachable attachment of the rearwardly projecting downwardly extending support arm comprises a longitudinally effective latching attachment to a rear attachment point on the helmet shell and a transverse in the same effective suspension or support at a distance from the detent attachment inside the helmet shell located additional attachment point. As a result, the support arm projecting downwards is prevented from leaving its latching connection with the helmet shell or leaving the helmet shell with more than one necessary clearance for the displacement. The helmet shell is thus controlled by lateral force application or shifted pivoted, and it is thereby reduced impact energy. The shock absorbing function is effected in the displacement or pivoting mainly by elastic deformation of the carrier basket and attached thereto, laterally projecting downwardly support arms. The additional attachment point can be above or below the catch attachment.

The downwardly projecting support arm and its attachment to and in the helmet shell have an important function, which will be explained in more detail here. The helmet shell has in cross-section substantially the shape of an ellipse. The longitudinal axis of the ellipse extends in the direction from front to back or vice versa. The smaller radius of curvature of the ellipse is thus located at the front and rear end of the helmet shell. If the helmet shell is deformed by external force or from the inside by the twisting interior trim assembly, so where the radius is smaller, ie front and rear, more force is required for the deformation than where the radius of curvature is greater, so on the two long sides of the helmet shell. In the area in which the ellipse has the smaller radius of curvature, eg at the rear, the helmet shell can absorb more traction. If, as a thought experiment, the helmet shell were to exert the same pull force in all areas, ie in the lateral areas as well as in the front and back, then the lateral areas would deform much more inwardly because of the lower tensile forces. The downwardly projecting support arm has a shallower angle with respect to the helmet shell than the laterally projecting downwardly projecting support arms. Therefore, more deformation force is exerted on the rear portion of the helmet shell than on the lateral portions, an estimated 50% at the back and 25% at the lateral portions. This gives a major difference to all known helmets. When a known helmet is subjected to an impact from above, the known helmet is deformed only at the top. In the same impact, however, the helmet shell is deformed in the case of the protective helmet according to the invention, not only in the upper area, but also in the lateral areas. In principle, it is true that in the protective helmet according to the invention, a deformation energy is introduced into the entire helmet shell, but it is such that in the rear attachment point, where the free end of the downwardly projecting support arm is attached to the helmet shell, due to the shallow inclination of the rear down cantilevered support arm and in view of the smaller radius at the rear end of the helmet shell greater force than in the region of the long sides of the helmet shell, so that a total of a stable force is achieved on the entire helmet shell.

The suspension of the downwardly projecting support arm provides additional support to the helmet shell when impact comes from above. In addition, this additional suspension counteracts tensile forces exerted by the chinstrap when it is loaded on the trim assembly.

Finally, the preferred for the protective helmet according to the invention 3-point attachment between interior trim assembly and helmet shell provides the necessary degrees of freedom between the helmet shell and interior trim assembly. Their mutual displacement allows a twisting of at least the two laterally downwardly projecting support arms and thus a corresponding deformation of the helmet shell and the interior trim assembly, so that even with regard to lateral impact of the protective helmet has excellent shock absorption capacity.

The particular advantage offered by the invention with regard to the introduction of force into the helmet shell is also based on the knowledge that three attachment points between the interior trim assembly and the helmet shell are optimal for this purpose. When the helmet shell is hung on the trim assembly at four or more points, as in the prior art, the helmet shell and trim assembly becomes extremely sturdy. They are barely able to pivot or move each other, barely providing the deformation that would contribute to shock absorption.

The support arm projecting downwards is prevented by the additional suspension or support from leaving its detent connection with the helmet shell in the event of an external force acting on the helmet shell, which manifests itself in a tensile load of this support arm, or the helmet shell more than one for the displacement necessary game. The helmet shell is thus controlled shifted or pivoted at lateral force against the interior trim assembly, which reduces impact energy is reduced.

The additional suspension or support of the rearwardly cantilevered support arm on the helmet shell provides additional benefits in the certification-required tensile test that such protective helmets must pass before being approved for sale. This tensile test examines, among other things, whether a chinstrap, which is mandatory for some helmets, eg for mountaineering and tree climbing helmets, is capable of separating the entire helmet from the wearer's head under a prescribed tensile load. The suspension not only leads to a stabilization of the attachment of the rearwardly projecting down cantilever arm on the helmet shell, but also takes in the deduction test a large part of the force and prevents that can be loaded so much by the tensile load of the rear down cantilevered support arm in that he leaves his detent connection with the helmet shell. The angle formed by the downwardly projecting support arm with the longitudinal axis of the helmet shell, is very flat, so that this arm is loaded at a force on the helmet from above higher on train and thus correspondingly strong for shock absorption under load from above can contribute. Due to the stabilization due to the suspension, the tensile load capacity of the rearwardly projecting down cantilever arm is significantly improved. In the above-described prior art, for example according to the document DE 1 797 962 U1 , is the angle that support plates form on the basket with the helmet side, so steep that when force is applied from above the force on the support straps practically in the direction of the helmet shell is introduced into this. Of course, forces introduced into the helmet shell are not able to support the shock absorption function because they do not produce any tendency to deform the helmet shell inwardly in the region of their longitudinal edges. In the prior art, a significant inward deformation of the helmet shell would also be rather counterproductive, because the helmet shell is already in the initial state very close to the head of the helmet wearer, in contrast to the protective helmet according to the invention, where at the level of the lower edge of the helmet shell up to At least about 4 cm wide space between the interior equipment and helmet shell is available. The clearance allows a considerable deformation of the helmet shell inside, without the risk that the helmet shell comes into contact with the head. Rather, it is ensured that the deformation of a substantial part of the impact energy is reduced. The preferred three-point attachment of the helmet shell to the interior trim assembly and the wide clearance therebetween provide the prerequisites for the protective helmet of the invention.

With a lateral load of the helmet shell, the conditions in terms of shock absorption are still much less favorable than in the case of a load from above in the known protective helmets. Usually, in the known helmets, as they are explained above, the interior fixed directly to the helmet edge down. If a side blow affects the helmet shell, this blow is transferred directly to the head. The fact that between helmet shell and interior equipment at the height of the lower shell of the helmet shell sometimes a cushion band is still present, such as the helmet according to the aforementioned document DE 1 797 962 U1 , does not help either, because such a cushioning tape has only a small thickness and can be compressed by the inwardly moving helmet shell fairly resistance.

Advantageous embodiments of the protective helmet according to the invention form the subject of the dependent claims.

In one embodiment of the protective helmet according to the invention, an intermediate part of the rearwardly projecting downwardly projecting support arm can be fixed or fixed to the helmet shell at a support part located at a distance above or below it in order to connect the rearwardly projecting support arm to the additional attachment point. As a result, the support arm projecting downwards at the bottom is prevented from leaving its detent connection with the helmet shell, even under the most adverse conditions of force influence, or leaving the helmet shell with more than one necessary clearance for shifting relative to the interior trim assembly. The additional fixation of the located in the space between the intermediate portion of the rearwardly projecting downwardly support arm at a distance above it located holding part on the helmet shell, for example, by a to the intermediate part formed arm extension, ridge od. Like. Made, which produces a substantially rigid connection between the intermediate part and the holding part located above the same on the helmet shell.

In a further embodiment of the protective helmet according to the invention, the support basket is formed of a stiff, elastically flexible material. In the protective helmet according to the invention, in this embodiment, the support and the shock absorbing function in the basket made of a stiff, elastically flexible material and the cantilever arms of the same or the same material united. In the fulfillment of the shock absorption function of the support basket is supported by the helmet shell, because the obliquely downwardly or rearwardly projecting support arms with their free ends support basket on the helmet shell from such that at an external pressure on the helmet shell from above at least the cantilevered support arms are loaded by the helmet shell to train and strive to deform the helmet shell on its longitudinal sides to the lower edge inwards.

In a further embodiment of the protective helmet according to the invention, the chin strap attachment device has two chin strap attachment points inside the helmet shell to which hangers of the chin strap are susceptible, and a rear chin strap attachment point to the trim assembly. The location of these attachment points for the chin strap ensures the same secure.

In a further embodiment of the protective helmet according to the invention, the rear chin strap attachment point comprises an opening in the rearwardly projecting downwardly support arm, in which a further Einhängelasche the chin strap is suspended. The chin strap can be easily fixed to the interior trim assembly after mounting the interior trim assembly in the helmet shell. The use of Einhängelaschen in the three attachment points of the chin strap allows easy replacement of the same, eg for cleaning purposes.

In a further embodiment of the protective helmet according to the invention, the carrying basket on its lower edge on a circumferentially closed support strip, to which the support arms are integrally formed. In this embodiment, the support arms and the support strip with the remaining part of the carrier basket form an integral component which has the necessary rigidity and nevertheless provides a sufficient shock-absorbing effect. In particular, in the area between this support strip and the helmet shell, this has the same distance of at least about 4 cm from the basket on the entire circumference.

In a further embodiment of the protective helmet according to the invention, the neck band is attached to the carrying basket and has two ends, which are releasably connected in the neck area by a clamping unit, which is added as another helmet accessory in the free space. The neckband is also protected from external influences by obstacles and still easily accessible for operation by the helmet wearer.

In a further embodiment of the protective helmet according to the invention, the clamping unit on a support shell, which is tensioned during tensioning of the neck band with the aid of a latch flap against the back of a head of a helmet. This embodiment ensures a reliable one-hand operation and also allows to fix the interior trim assembly to the head in a simple manner. The use of a chin strap then provides additional security.

In a further embodiment of the protective helmet according to the invention, the chin strap is guided from the two front chin strap attachment points to the rear to the tensioning unit, threaded on both sides through the support shell and finally brought together in the rear chin strap attachment point. In a tensile load of the chin strap pulls the end of which is attached to the projecting downwardly projecting support arm on the basket down. Immediately above or below is the additional attachment point in which the support arm projecting downwards to the rear is suspended or supported on the inside of the helmet shell. The downward pulling force of the chinstrap is absorbed by the helmet shell. The pulling direction down receives the Chin strap by being threaded through the tension unit in its area in front of the rear attachment point.

In a further embodiment of the protective helmet according to the invention, the support arms projecting laterally downwards in the two temples have means for releasably fixing them inside the helmet shell. The interior trim assembly can be easily and detachably attached to the helmet shell.

In a further embodiment of the protective helmet according to the invention, the fixing means are formed on each of the laterally downwardly projecting support arms so that they can be brought into positive engagement with the helmet shell. The attachment point of the interior trim assembly on the inside of the helmet shell can be transmitted in a simple way force.

In a further embodiment of the protective helmet according to the invention, the support arm projecting downwards at the bottom has, for its catch fastening at its free end, a latching device for fixing the support arm to the helmet shell. In this embodiment, the helmet shell may simply have an opening into which the aforementioned support arm is inserted with its free end, so as to be locked to the helmet shell and transmitted through the attachment point force.

In a further embodiment of the protective helmet according to the invention, the fixing means comprise on each of the laterally downwardly projecting support arms through holes which detect rod-like projections on the helmet shell each on a length which is at least as large as the inside diameter of the through holes, so that a through Load of the helmet from above on the laterally downwardly projecting support arms exerted force on these support arms generates a moment which tends to deform the helmet shell inwardly to the lower edge. In this embodiment, the shock absorption function of the interior trim assembly can be supported in a simple manner by elastic deformation of the helmet shell. The passage openings at the free ends of the support arms are adapted to the rod-like projections in order to exert a leverage effect on the rod-like projections when force is applied to the helmet shell to be able to. The support of the shock absorption function is carried out not only when power is applied to the helmet from above, but also when power is applied to the helmet from the side. In the latter case, a controlled shifting or pivoting of the helmet shell relative to the interior trim assembly leads to a tendency that the support arms twist and thus also the support basket is twisted, which significantly contributes to shock absorption. It is helpful in that the support arms are very wide, which facilitates their twisting through the helmet shell during their displacement or pivoting relative to the interior trim assembly.

In a further embodiment of the protective helmet according to the invention, the support basket on two downwardly projecting support arms on which the neck band is fixed in each case at a selectable height. In this way, the fit of the helmet can be easily improved.

In a further embodiment of the protective helmet according to the invention, the support arms and the support arms are additionally stiffened by molded ribs. The power transmission via the attachment point can be secured easily.

In a further embodiment of the protective helmet according to the invention, located in the space intermediate portion of the rearwardly projecting down support arm for additional suspension or support in the additional attachment point on the helmet shell is provided with at least one up or down projecting web. The ridge ensures that a force exerted by the force acting from above the helmet shell on the downwardly projecting support arm force is exerted not only on the free end of this arm, which is locked with the helmet shell, but also on the located in the space intermediate part of this arm , When lateral force on the helmet, the bridge acts as a stabilizer, because it allows for lateral force on the helmet shell while a displacement or pivoting of the helmet shell relative to the interior trim assembly, but prevents the locking connection between the projecting rear support arm and the helmet shell dissolves, loosens or displaces significantly.

In a further embodiment of the protective helmet according to the invention, the web is integrally formed on the support arm projecting downwards. Since the support basket is preferably made of plastic and the rearwardly projecting support arm is integrally formed on the carrier basket, the web can be easily integrally with the basket.

In a further embodiment of the protective helmet according to the invention, the web is formed at its free end so that it can be positively fixed to the holding part on the helmet shell. In this way, the easiest way to ensure that the web attached to the inside of the helmet shell behaves like the helmet shell and that their mutual connection can be easily formed so that it is easily solvable, for. when disassembling the interior equipment assembly from the helmet shell.

In a further embodiment of the protective helmet according to the invention, the downwardly projecting cantilever arm is forked at its free end and locked with two fork ends formed on the helmet shell and provided in its intermediate part with a pair of webs which are aligned parallel to each other and the width of the arm are spaced from each other. This makes it possible to engage the fork-like free end in a simple manner in an opening in the helmet shell and thereby fix the projecting downwardly below the support arm in its entire width on the pair of webs on the inside of the helmet shell.

In a further embodiment of the protective helmet according to the invention, the laterally downwardly projecting support arms form an angle in a range of about 30 ° -50 ° with a straight line extending transversely to the longitudinal axis of the carrier basket and through the free ends of these support arms. In this range, it is possible to choose an optimum value for the force effect with regard to the desired support of the shock absorption function. A preferred value is 45 °.

In a further embodiment of the protective helmet according to the invention, the support arm projecting downwards at the bottom forms an angle with the longitudinal axis of the carrier basket in a range of approximately 15 ° -25 °. A preferred value is 20 °.

In a further embodiment of the protective helmet according to the invention, the laterally downwardly projecting support arms are swept forward and formed in front of a central transverse axis of the carrier basket on the basket. The laterally downwardly projecting support arms do not project in this embodiment, not straight to the side, but obliquely forward. As a result, the forces can be better distributed from the Anlenkungspunkten ago on the helmet shell. The good distribution of forces on the helmet shell ensures that it is completely uniformly deformed all around.

In a further embodiment of the protective helmet according to the invention, the helmet shell has ventilation openings and guide slots for holding elements of a ventilation slide at least in a region which adjoins the latching connection point of the rearwardly projecting support arm in the forward direction. The vents allow for good ventilation of the space between the helmet shell and interior trim assembly. The guide slots allow the vent slide by means of holding elements, which are mounted on its underside, releasably and slidably attach to the helmet shell.

In a further embodiment of the protective helmet according to the invention, the holding elements of the ventilation slide comprise a pair of angular elements in its front region and a pair of resiliently deflectable retaining arms in its rear region which are slidably and releasably halterbar or held in their associated guide slots. A detachable mounting of the ventilation slide on the helmet shell is possible in a simple manner.

In a further embodiment of the protective helmet according to the invention, the ventilation slide is shaped so that it shields the area of the helmet shell, in which the support arm cantilevered out to the rear below, is shielded against impact.

Fig. 1

in perspektivischer Darstellung und in einer Ansicht schräg von unten eine Innenausstattungsbaugruppe eines Schutzhelms nach dem älteren Vorschlag des Anmelders,

Fig. 2

die Innenausstattungsbaugruppe nach Fig. 1 in einer Ansicht schräg von oben,

Fig. 3

in einer Längsschnittansicht die Innenausstattungsbaugruppe nach Fig. 1, eingesetzt in eine ebenfalls im Längsschnitt gezeigte Helmschale des Schutzhelms nach dem älteren Vorschlag des Anmelders,

Fig. 4

die Helmschale nach Fig. 3 ohne die Innenausstattungsbaugruppe in einer Ansicht von unten,

Fig. 5

die Helmschale nach Fig. 4 in perspektivischer Darstellung in einer Ansicht schräg von unten,

Fig. 6

ein Ausführungsbeispiel des Schutzhelms nach dem älteren Vorschlag des Anmelders, bei dem dieser mit Gesichts- und Gehörschutz versehen ist, in auseinandergezogener Darstellung und teilweise im Schnitt,

Fig. 7

den Schutzhelm nach Fig. 6 in einer Unteransicht, in welcher der Gesichtsschutz, eine Spanneinheit und ein Gehörschutz mit Abstand von dem Helm dargestellt sind,

Fig. 8

ein Ausführungsbeispiel des Schutzhelms nach dem älteren Vorschlag des Anmelders, der Erfindung, bei dem dieser einen Gehörschutz aufweist, wobei die Helmschale im Querschnitt und der Gehörschutz weggeklappt von den Ohren gezeigt sind,

Fig. 9

den Schutzhelm nach Fig. 8, wobei aber der Gehörschutz angeklappt an die Ohren gezeigt ist,

Fig. 10

den Schutzhelm nach Fig. 9 in einer Seitenansicht,

Fig. 11

den Schutzhelm nach Fig. 10, wobei aber der Gehörschutz verschwenkt in eine Parkposition und verstaut unter der Helmschale gezeigt ist,

Fig. 12

die Innenausstattungsbaugruppe des Schutzhelms nach dem älteren Vorschlag des Anmelders, wobei zwei Enden eines Nackenbandes im Nackenbereich durch eine Spanneinheit lösbar verbunden sind,

Fig. 13

in einer Seitenansicht des Schutzhelms nach dem älteren Vorschlag des Anmelders die Innenausstattungsbaugruppe nach Fig. 12 eingebaut in die Helmschale,

Fig. 14

den Schutzhelm nach Fig. 13 in einer Ansicht von unten,

Fig. 15

eine Querschnittansicht des Schutzhelms nach Fig. 13 in Blickrichtung nach hinten,

Fig. 16

in einer teilweise aufgebrochenen Darstellung den Schutzhelm nach Fig. 13 bei Blick in Richtung nach vorne,

Fig. 17

den Schutzhelm nach Fig. 13, der zusätzlich mit einem Visier als Gesichtsschutz gezeigt ist, wobei das Visier aufgeklappt ist,

Fig. 18

eine Querschnittansicht des Schutzhelms nach Fig. 17 bei Blick in Richtung nach hinten,

Fig. 19

den Schutzhelm nach Fig. 17 in einer aufgebrochenen Darstellung bei Blick in Richtung nach vorne,

Fig. 20

in einer Seitenansicht ein Ausführungsbeispiel eines Schutzhelms nach dem älteren Vorschlag des Anmelders, der mit einem Gesichtsschutz, einem Gehörschutz und einer im Hinterkopfbereich an einem Nackenband angebrachten Spanneinheit versehen ist,

Fig. 21

als eine Einzelheit in einer Ausführungsform des Schutzhelms nach der Erfindung in vergrößertem Maßstab einen hinteren Teil der Helmschale, der mit einem Halteteil zur zusätzlichen Fixierung des Tragkorbes an der Helmschale versehen ist,

Fig. 22

in einer gleichen Ansicht wie in Fig. 21 die Befestigung des hinteren Teils des Tragkorbes an der Helmschale über eine Rastverbindung eines nach hinten unten auskragenden Tragarms des Tragkorbes und über einen an diesem Tragarm angeformten Steg, der an dem Halteteil eingehängt oder abgestützt ist,

Fig. 23

eine Innenausstattungsbaugruppe eines Schutzhelms nach der Erfindung in einer Ansicht von hinten,

Fig. 24

die Innenausstattungsbaugruppe nach Fig. 23 in einer Längsseitenansicht,

Fig. 25

die Innenausstattungsbaugruppe nach den Fig. 23 und 24 in einer perspektivischen Ansicht schräg von hinten oben,

Fig. 26

eine weitere Ausführungsform des Schutzhelms nach der Erfindung, der hier als Bergsteiger- oder Baumklettererhelm ausgebildet und daher zusätzlich mit einem Kinnriemen versehen ist, in einer Ansicht von vorn,

Fig. 27

den Schutzhelm nach Fig. 26 in einer Ansicht seitlich schräg von unten,

Fig. 28

den Schutzhelm nach Fig. 26 in einer Ansicht von hinten,

Fig. 29

den Schutzhelm nach Fig. 26 in einer Seitenansicht,

Fig. 30

in einer Gesamtdraufsicht die Helmschale des in den Fig. 21 und 22 nur teilweise dargestellten Schutzhelms, und zwar zusammen mit einem Lüftungsschieber,

Fig. 31

als eine Einzelheit in einer Unteransicht den hinteren Teil der Helmschale mit dem Lüftungsschieber,

Fig. 32

als eine Einzelheit den Lüftungsschieber nach Fig. 30 in einer Unteransicht,

Fig. 33

in Draufsicht die Helmschale des Schutzhelms nach der Erfindung bei demontiertem Lüftungsschieber, aber montierter Innenausstattungsbaugruppe nach den Fig. 23 - 25,

Fig. 34

die Helmschale mit montierter Innenausstattungsbaugruppe nach Fig. 33, aber in einer Ansicht von unten, und

Fig. 35

in einer Gesamtunteransicht die Helmschale des in den Fig. 30 und 31 nur teilweise dargestellten Schutzhelms, und zwar wiederum bei montiertem Lüftungsschieber, der hier aber in Lüftungsstellung ist.

Embodiments of the invention will be described in more detail below with reference to the drawings. It shows:

Fig. 1

in a perspective view and in a view obliquely from below an interior trim assembly of a protective helmet according to the earlier proposal of the applicant,

Fig. 2

the interior trim assembly after Fig. 1 in a view diagonally from above,

Fig. 3

in a longitudinal sectional view of the interior trim assembly according to Fig. 1 , used in a helmet shell of the protective helmet, also shown in longitudinal section, according to the earlier proposal of the applicant,

Fig. 4

the helmet shell after Fig. 3 without the trim assembly in a bottom view,

Fig. 5

the helmet shell after Fig. 4 in a perspective view in a view obliquely from below,

Fig. 6

an embodiment of the protective helmet according to the earlier proposal of the applicant, in which this is provided with face and hearing protection, in exploded view and partly in section,

Fig. 7

the hard hat after Fig. 6 in a bottom view, in which the face shield, a clamping unit and a hearing protector are shown at a distance from the helmet,

Fig. 8

an embodiment of the protective helmet according to the earlier proposal of the applicant, the invention in which it has an ear protection, wherein the helmet shell in cross-section and the hearing protection are shown folded away from the ears,

Fig. 9

the hard hat after Fig. 8 but with the ear protection shown hinged to the ears,

Fig. 10

the hard hat after Fig. 9 in a side view,

Fig. 11

the hard hat after Fig. 10 but where the hearing protector is shown pivoted into a parked position and stowed under the helmet shell,

Fig. 12

the interior equipment assembly of the protective helmet according to the earlier proposal of the applicant, wherein two ends of a neck band in the neck area are detachably connected by a tensioning unit,

Fig. 13

in a side view of the helmet after the older proposal of the applicant, the interior trim assembly according to Fig. 12 built into the helmet shell,

Fig. 14

the hard hat after Fig. 13 in a view from below,

Fig. 15

a cross-sectional view of the helmet after Fig. 13 in the direction of the back,

Fig. 16

in a partially broken representation of the protective helmet Fig. 13 looking towards the front,

Fig. 17

the hard hat after Fig. 13 additionally shown with a visor as a face shield, with the visor opened,

Fig. 18

a cross-sectional view of the helmet after Fig. 17 looking towards the rear,

Fig. 19

the hard hat after Fig. 17 in a broken view, looking towards the front,

Fig. 20

in a side view an embodiment of a protective helmet according to the older proposal of the applicant, with a face shield, an ear protection and a tensioning unit attached to a neck band in the occipital area,

Fig. 21

as a detail in an embodiment of the protective helmet according to the invention on an enlarged scale a rear part of the helmet shell, which is provided with a holding part for additional fixation of the carrier basket to the helmet shell,

Fig. 22

in a same view as in Fig. 21 the attachment of the rear part of the carrier basket to the helmet shell via a latching connection of a rearwardly projecting downwardly projecting support arm of the carrier basket and via an integrally formed on this support arm web, which is mounted or supported on the holding part,

Fig. 23

an interior trim assembly of a protective helmet according to the invention in a view from behind,

Fig. 24

the interior trim assembly after Fig. 23 in a longitudinal side view,

Fig. 25

the interior equipment assembly after the Fig. 23 and 24 in a perspective view obliquely from behind top,

Fig. 26

a further embodiment of the protective helmet according to the invention, which is designed here as a mountaineer or Baumklettererhelm and therefore additionally provided with a chin strap, in a view from the front,

Fig. 27

the hard hat after Fig. 26 in a view obliquely from below,

Fig. 28

the hard hat after Fig. 26 in a view from behind,

Fig. 29

the hard hat after Fig. 26 in a side view,

Fig. 30

in a total top view the helmet shell of the Fig. 21 and 22 only partially illustrated protective helmets, together with a ventilation slide,

Fig. 31

as a detail in a lower view the rear part of the helmet shell with the ventilation slide,

Fig. 32

as a detail after the ventilation slide Fig. 30 in a bottom view,

Fig. 33

in plan view, the helmet shell of the protective helmet according to the invention with disassembled ventilation slide, but assembled interior trim assembly according to the Fig. 23 - 25 .

Fig. 34

the helmet shell with mounted interior trim assembly after Fig. 33 but in a view from below, and

Fig. 35

in a general bottom view the helmet shell of the Fig. 30 and 31 only partially illustrated helmets, again with mounted ventilation slide, which is here but in ventilation position.

A generally designated 30 protective helmet according to the earlier proposal of the applicant is in an embodiment that is particularly adapted for use in forestry, in Fig. 20 in a side view and in Fig. 6 in an exploded view and partially shown in section. The protective helmet 30 comprises a total of 32 designated face shield and a total of 34 designated hearing protection. Further, the protective helmet 30 includes a helmet shell 36 and an interior trim assembly, generally designated 40, which includes a carrier basket 42, a headband 44, and a neckband 46. The neckband 46 is equipped with a total of 48 designated clamping unit. The helmet shell 36 is externally provided with a vent slide 50, with which formed in the helmet shell ventilation openings 52 can be opened and closed.

As a means for a preferably used three-point attachment of the interior trim or interior trim assembly 40 to the helmet shell 36 serve as spacers formed support arms 54, 55 and 56, of which the support arm 55 in Fig. 6 is not visible. The helmet shell 36 is dimensioned (that is, its inside width is so long and so wide) and the support arms 54, 55 and 56 are dimensioned and arranged such that there is a free space 60 between the interior trim assembly 40 and the helmet shell 36 for receiving of hearing protection capsules 35a, 35b of hearing protection 34 and other helmet accessories as well as fastening devices for at least face protection 32, hearing protection 34 and chin strap 300 (FIGS. Fig. 26-29 ). To the other helmet accessories include the already mentioned clamping unit 48 of the neck band 46th

In the following, the helmet shell 36, the interior trim assembly 40, its connection with the helmet shell 36 and then the helmet accessories comprising the ear defenders 34, the face shield 32 and its attachment devices and the tensioning unit 48 and the chin strap 300 and its attachment device 380, in detail and described in this order

The helmet shell 36 will be described below with reference to the drawings, in particular Fig. 3-7 and 15 , described in detail.

The helmet shell 36 is formed as a one-piece plastic molded part. A suitable plastic for the helmet shell 36 is eg ABS. In Fig. 3 The helmet shell 36 is shown in a longitudinal sectional view equipped with the trim assembly 40. Fig. 4 shows the helmet shell 36 after Fig. 3 without the trim assembly 40 in a bottom view. Fig. 5 shows the helmet shell after Fig. 4 in a perspective view in a view obliquely from below. Fig. 6 shows in an exploded view and partially in section the protective helmet 30, wherein in this representation above the helmet shell 36 and above the vent slide 50 are visible. Fig. 7 shows the helmet 30 after Fig. 6 in an assembled view, in which the face shield 32, the tensioning unit 48 and the hearing protector 34 are spaced apart from the helmet are. The helmet shell 36 is forward so far forward that it also fulfills the function of a shield above the eyes. The helmet shell 36 has thereby in its front region in the rearward direction a uniformly rising outer surface without any appreciable gradation, so that it does not offer Einhakpunkte obstacles such as branches. On the inner surface of the helmet shell 36 transversely extending reinforcing ribs 62 are integrally formed in the front and middle helmet area. A reinforcing rib 64 extending in the longitudinal direction of the protective helmet 30 is formed transversely to the reinforcing ribs 62 and in the center. The reinforcing ribs 62 and 64 are in the Fig. 3 and 4 best to recognize. In the middle region, the reinforcing ribs 62, 64 adjoin a slightly inwardly recessed area, which has six groups of the ventilation openings 52. In the recessed region of the outer surface of the helmet shell 36 of the ventilation slide 50 is slidably disposed, which engages with downwardly and inwardly projecting retaining cam 68 in two front guide slots 66 and two retaining cams 70 in two rear guide slots 72. The ventilation slide 50 has congruent ventilation openings 53 (FIG. Fig. 6 ), which are located in the ventilation position on the ventilation openings 52 and are arranged offset in the closed position so that the ventilation openings 52 are closed by the vent slide 50. The lower edge of the helmet 30 is pulled laterally in the area of the temples and laterally in the area of the back of the head, as in the Fig. 5 and 11 can be seen. The above-mentioned free space 60 between the interior trim assembly 40 and the helmet shell 36 is thereby increased in these areas downwards. This facilitates the attachment of fasteners to the inside of the helmet shell 36 and the stowage of the earmuffs 35a, 35b in the space 60, which the representation in Fig. 11 clarified and what is described in more detail below.

In the aforementioned temple area on the inside of the helmet shell 36 on each side three rod-like projections 74a and 74b formed on which the interior trim assembly 40 with the support arms 54 and 55 is positively and releasably attachable. The rod-like projections 74a, 74b are in a side view in FIG Fig. 5 , in a plan view in Fig. 4 (right) and in a sectional view in Fig. 15 to recognize. The rod-like projections 74a, 74b are each in cross-section square hollow profile parts, with a foot region on the inside of the helmet shell 36 are formed. In their region opposite the foot region, the rod-like projections 74a, 74b are arranged freely in front of the inner surface of the helmet shell 36. The connection of the rod-like projections 74 to the inside of the helmet shell 36 and its transition to the helmet shell in the area adjacent the junction in a respective triangular gusset is stiffened by additional molded ribs between the rod-like projections 74a, 74b and the helmet shell 36, so that the rod-like projections 74a, 74b are substantially rigidly connected to the helmet shell 36. When a force is applied to the rod-like projections 74a, 74b transversely to their longitudinal direction, which tends to bend the rod-like projections, the rod-like projections 74a, 74b endeavor to deform the helmet shell 36 accordingly. The purpose of this embodiment is further explained below in connection with the description of the attachment of the interior trim assembly 40 to the helmet shell 36.

At the rear end, the helmet shell 36 is provided at the lower edge in the middle with a recess 76 behind which the tensioning unit 48 of the neck band 46 is located when the helmet 30 is fully assembled and thus accessible for manual operation for tensioning or relaxing the neck band 46 ,

For locking the support arm 56 on the helmet shell 36, this is provided in the occiput region with at least one slot 78, in which the correspondingly shaped free end of the support arm 56 (FIG. Fig. 2 ) can snap releasably, as it is in the Fig. 7 and 15 can be seen. When the support arm 56 is engaged, projections 56a, 56b formed on the support arm 56 are located outside the helmet shell 36 and rest on their outer surface, so that the support arm 56 is subjected to tension when the force exerted on the helmet shell 36 from above.

An attachment device 80 for the hearing protection 34 has two hearing protection bearing points 80 a, 80 b on the inside of the helmet shell 36. The hearing protection bearing points 80a, 80b are pivot bearings, which are integrally formed on the helmet shell 36 or, preferably, are non-detachably attached as additional parts. In the hearing protection bearing points 80a, 80b mounting bracket 37a, 37b are pivotally mounted with ear defenders capsules 35a and 35b, which is described in more detail below.

An attachment device 84 for the face protection 32 has inside the helmet shell 36 two face protection bearing points 84a, 84b. In the face protection bearing points 84a, 84b two support arms 132a, 132b of a visor 132 are pivotally mounted. The face protection bearing points 84a, 84b are not formed on the inside of the helmet shell 36, but in each case on a plug 136a and 136b, which are respectively attached to the rod-like projections 74a and 74b, so at the same time the free ends of the support arms 54, 55 determine the rod-like projections. The face protection bearing points 84a, 84b are with their associated plugs 36a and 36b in the assembled state in the free space 60, in an area in which the helmet shell 36 is pulled down at its lower edge, as already explained above.
The interior equipment for the protective helmet 30 will be described below with reference to the drawings, in particular the Fig. 1-3 . 6 and 12 described in detail. The trim assembly 40 is that portion of the protective helmet 30 that contacts the head and consists of the carrier basket 42, the headband 44, and the neckband 46 equipped with the tension unit 48. The assembly 40 is at the in the Fig. 3 and 6 helmet shell 36 shown fixed to support the helmet 30 on the head of a wearer and hold.
Fig. 1 shows in perspective and in a view obliquely from below the interior trim assembly 40 of the protective helmet 30 after the older proposal Fig. 2 shows the interior trim assembly Fig. 1 in a view diagonally from above. Fig. 3 shows in a longitudinal sectional view of the interior trim assembly 40 after Fig. 1 inserted into the helmet shell 36 of the protective helmet 30, likewise shown in longitudinal section. Fig. 6 shows an embodiment of the protective helmet 30, in which it is provided with a face and a hearing protectors 32 and 34, in exploded view and partially in section. Fig. 12 shows the interior trim assembly 40 of the protective helmet 30, wherein two ends of the neck band 46 are detachably connected in the neck area by the clamping unit 48.

The carrier basket 42 is formed of a rigid, elastically flexible material, preferably of a plastic such as polyamide. The support head 42 is provided in two temporal areas and in an occipital area each with a rigid, obliquely downwards or downwardly projecting downwardly support arm 54, 55 and 56 to a three-point attachment of the interior of the helmet shell 36 and to make it possible in the helmet shell 36 continuously around the interior extending clearance 60 for receiving earmuffs 35a, 35b and other helmet accessories and fasteners 80, 84 for the face and ear protectors 32 and 34. The support basket 42 is made in the embodiment described herein as a one-piece plastic molding , The support basket 42 is formed of two pairs of mutually spaced support strips 142, 144, as shown in FIG Fig. 2 cross centrally and pass with their lower ends at four connection points 146a, 146b, 146c, 146d in a single, circumferentially closed support strip 148. In Fig. 1 the support strips 142, 144 are covered by a cross-shaped padding material piece 149.

The support arms 54, 55, 56 project at the connection points 146a, 146b, 146c from the support basket 42 down. Assuming that the support strips 142 and 144 extend between the connection locations 146a, 146b and 146c, 146d, respectively, in an arc, preferably substantially a circular arc, the support arms 54, 55 and 56, respectively, are substantially tangential to the respective one Bow from the basket laterally downwards or backwards downwards, as it is in the Fig. 15 or 2 can be seen. In the embodiment described here, the support arms 54, 55, 56 are integrally formed on the circumferentially closed support strip 148. The headband 44 is formed on the carrier basket 42, as shown in FIG Fig. 2 can be seen. The neckband 46 has two front ends which are releasably connected to rear free ends of the headband 44, for example, by a locking connection, not shown in the figures. The neckband 46 has, as shown in the Fig. 1 to 3 two free ends which are detachably connectable to each other in the neck region, with the aid of the clamping unit 48, as in Fig. 12 can be seen. The neckband 46 may be formed of the same material as the carrier basket 42. The neck band 46 is in each case adjustable in height between its connections to the headband 44 and its free ends Support basket 42 connected, as for example in the Fig. 1 and 2 can be seen. For this, the support basket 42 has two downwardly projecting support arms 47a, 47b, on which the neck band 46 can be fixed in each case to a selectable height. The neck band 46 has on each side three superimposed holes 51, which on a on each support arm 47a, 47b projecting resilient bolt 49 (FIGS. Fig. 6 ) are latched, as it is in the Fig. 1 and 2 can be seen.

In the embodiment described above, the support arms 54, 55, although differently affixed to the helmet shell 36 as the support arm 56, but this is not absolutely necessary. The support arms 54, 55 may also be attached to the helmet shell in the same manner as the support arm 56. It would merely require that the support arms 54, 55 have the same fixing means as the support arm 56, which allow the support arms 54, 55 to be positively engaged with the helmet shell. In this case, then the fixing means of the support arms 54, 55 also locking means, which z. B. are inserted into slots in the helmet shell 36 to fix the support arms 54, 55 as the support arm 56 to the helmet shell by means of a latching connection.

The headband 44 is formed at a distance from the circumferentially closed support strip 148 via connecting strips 150 to the circumferentially closed support strip 148. The support arms 54, 55, 56 and the support arms 47a, 47b are additionally stiffened by molded-on ribs 152 and 154, respectively.

The laterally downwardly projecting downwards in the two temple areas support arms 54, 55 have means for fixing the inside of the helmet shell 36. The fixing means comprise on each of the support arms 54, 55 three through holes 156 and 158, which are positively engageable with the rod-like projections 74a and 74b on the helmet shell 36 in engagement. The support arm 56 of the support basket 42 projecting backwards in the occipital region has the projections 56a, 56b, which, as already explained above, form a latching device for detachably fixing the interior trim assembly 40 to the helmet shell 36.

In industrial and forestry helmets, the attachment of a chin strap is usually on the helmet shell or on the basket. The attachment of the Chinstrap 300 ( Fig. 26-29 ) takes place in the protective helmet 30 'according to the invention for its use in particular as a mountaineer or Baumklettererhelm on the helmet shell 36 and the support basket 42 and is described in more detail below.

The interconnection of the helmet shell 36 and the trim assembly 40, which has been partially described above with reference to FIG Figures 2 . 3 and 15 summarized and supplemented explained. Fig. 2 shows the interior trim assembly 40 in a perspective view and in a view obliquely from above. Fig. 3 shows in a longitudinal sectional view of the interior trim assembly 40 inserted into the also shown in longitudinal section helmet shell 36 of the protective helmet 30, wherein the clamping unit 48 is not shown on the neck band 46.

Fig. 15 shows the protective helmet 30 in a sectional view along the line XV-XV in Fig. 3 wherein the clamping unit 48 is also shown. In Fig. 2 are formed as spacers support arms 55 and 56 can be seen. The second downwardly projecting support arm 55 is in Fig. 2 not visible. The support arm 55 is in Fig. 3 to be seen in an interior view. In Fig. 15 the support arms 54 and 55 are shown in section. For three-point attachment of the interior trim assembly 40 to the helmet shell 36 of the projecting rearwardly downwardly support arm 56 is inserted into the slot 78 in the helmet shell until the projections 56a, 56b engage the outside of the helmet shell. Then, the trim assembly 40 is further moved inwardly toward the inner surface of the helmet shell 36, with the support arms 54 and 55 being slipped over the rod-like projections 74a and 74b, respectively. The through holes 156 and 158 in the support arms 54 and 55, the rod-like projections 74 a and 74 b form-fitting manner, as in Fig. 15 can be seen. When the support arms 54, 55 rest in the gusset between the helmet shell 36 and the rod-like projections 74a, 74b on the helmet inner side, the plugs 136a and 136b (FIGS. Fig. 4 and 5 ) is attached to the rod-like projections 74a and 74b, so as to fix the support arms 54 and 55 in their position. The interior trim assembly 40 and the helmet shell 36 are now firmly connected together in three points. As soon as the protective helmet 30 has been placed on the head and fastened to the head with the aid of the tensioning unit 48, a chinstrap (not shown) may also be tightened under the chin. The passage openings 156, 158 in the support arms 54, 55 detect the rod-like projections 74a and 74b each have a length which is at least as large as the inside width of the through holes 156, 158. If a load on the helmets 30 from above a force on the support arms 54, 55, 56 is applied, the support arms are loaded by the helmet shell 36, which is supported on the ends of the support arms, to train. By acting on the support arms 54, 55, 56 force is generated in each of the three points, a moment which tends to deform the helmet shell 36 to the lower edge inwardly. The helmet shell 36 thus converts a portion of the force acting on it into deformation energy and thus reduces the force on the person wearing the helmet. The transmission of the moment from the support arms 54, 55, 56 to the helmet shell 36 is further enhanced by the fact that the support arms are additionally stiffened by integrally formed ribs 152.

In the following, the hearing protection 34 together with its attachment device 80 with reference to the drawings, in particular the Fig. 4 - 11 , described in more detail. Fig. 4 shows in a view from below the helmet shell 36 without the interior trim assembly 40, wherein in particular the position of the hearing protection bearing points 80a, 80b on the inside of the helmet shell 36 can be seen. Fig. 5 shows the helmet shell 36 after Fig. 4 in a perspective view in a view obliquely from below. Fig. 6 shows the protective helmet 30 in an underngezogener representation and partly in section, wherein the hearing protector 34 can be seen in association with the other helmet accessories. Fig. 7 shows the protective helmet 30 in a bottom view, in which the hearing protector 34 is shown at a distance from the helmet. The mirror image on the opposite side of the helmet 30 existing hearing protection 34 is in Fig. 7 have been omitted for clarity. Fig. 8 shows the protective helmet 30 with the ear protection 34 provided on both sides, wherein the helmet shell 36 in cross-section and the ear protection 34 are shown folded away from the ears. Fig. 9 shows the protective helmet Fig. 8 but with the hearing protector 34 shown hinged to the ears. Fig. 10 shows the protective helmet Fig. 9 in a side view. Fig. 11 shows the protective helmet Fig. 10 but wherein the hearing protection 34 is pivoted to the rear in a parking position and stored stowed under the helmet shell.

The hearing protection 34 comprises two ear protection capsules 35a, 35b, which are each pivotally mounted in a fork-like support bracket 37a and 37b. The helmet shell 36 is provided on its inside with the fixed hearing protection bearing points 80a, 80b, as in Fig. 4 can be seen. In Fig. 6 Although the hearing protection bearing point 80b is shown together with the carrying basket 42, this bearing point, like the ear protection bearing point 80b, is mounted inside the helmet shell 36 and not on the carrying basket 42. The representation in Fig. 6 is merely to illustrate where in the room the ear protection bearing point 80b with respect to the support basket 42 of the interior trim assembly 40 is located. In the bearing points 80a, 80b, the support brackets 37a, 37b, which are provided with the earmuffs 35a and 35b, pivotally mounted, as shown in the Fig. 10 and 11 can be seen. The hearing protection bearing points 80 a, 80 b and the support bracket 37 a, 37 b are arranged and formed so that the support bracket 37 a, 37 b are pivotable in the space 60 between two positions, one in the Fig. 9 and 10 shown operating position in which the earmuffs 35a, 35b cover the ears, and one in Fig. 11 shown parking position in which the earmuffs 35a, 35b are stowed in the free space 60 in the helmet shell 36.

Each support bracket 37a, 37b is formed in a region between its two ends, in which it extends in the free space 60, spring loaded kinked, so that the earmuffs 35a, 35b are folded in non-bent position of each support bracket 37a, 37b respectively from the ear as it is in Fig. 8 is shown, and in the bent position of the support bracket 37a, 37b are each folded to the ear, as in Fig. 9 is shown. When the protective helmet 30 is not placed upside down, the two earmuffs 35a, 35b in the latter part respectively reach a position which is much further inward than the ear to which each earmuff capsule 35a, 35b is intended to rest. In other words, the mutual distance of the earmuffs in this case is much smaller than the mutual distance of the ears. This ensures that when the helmet 30 is attached, the earmuffs 35a, 35b are held pressed against the ears by the spring preload. The spring preload for kinking each support bracket 37a, 37b between two defined positions is effected by an annularly bent bow spring 92a, 92b (the latter is in Fig. 6 to recognize). Each support bracket 37a, 37b can be folded by hand into one and not in one move bent position. In each of these positions causes the bow spring 92a and 92b an end position lock. The end position lock of the support bracket 37a, 37b is not achieved with the helmet, because, as I said, each hearing protection capsule 35a, 35b is to be held pressed against the ear.

In addition, each hearing protection bearing point 80a, 80b and each support bracket 37a, 37b are formed so that the support bracket only from the in Fig. 8 shown position can be pivoted backwards. This ensures that the earmuffs 35a, 35b can be stored in the space behind the ear, without colliding with the ears and the lower edge of the helmet shell 36.

Hereinafter, the face shield 32 will be described with reference to the drawings, in particular, FIGS Fig. 6 . 7 and 17 - 20 , described in more detail. Fig. 6 shows the protective helmet 30 in an exploded view and partially in section, wherein the face shield 32 can be seen in association with the other helmet accessories. Fig. 7 shows the protective helmet 30 in a bottom view, in which a visor 132 of the face shield 32 is shown at a distance from the helmet. Fig. 17 shows the protective helmet 30, wherein the visor 132 is opened. Fig. 18 is a cross-sectional view of the helmet after Fig. 17 looking towards the rear. Fig. 19 shows the protective helmet Fig. 17 in a broken view looking towards the front. Fig. 20 shows in a side view an embodiment of the protective helmet 30, which is provided except with the face shield 32 with the ear protector 34 and an attached in the back of the head area on the neck band 46 clamping unit 48.

The face shield 32 comprises the visor 132 with the two retaining arms 32a, 32b and two plugs 136a, 136b, to which a face protection bearing point 84a or 84b is respectively formed as a fastening device 84 for the face shield 32. The plugs 136 a, 136 b are plugged onto the rod-like projections 74 a and 74 b, whereby the face protection bearing points 84 a, 84 b come to lie in the temple area on the inside of the helmet shell 36. The plug 136b with the face protection bearing point 84b is in Fig. 4 to recognize. The oppositely disposed plug 136a with the face protection bearing point 84a is in Fig. 4 Not shown. Each face protection bearing point 84a, 84b has three axially projecting, elastically flexible cams 85a and 85b, respectively, over which the support arms 132a, 132b are slidable with ring bearing bushes 134a, 134b to releasably and pivotally attach the support arms 132a, 132b in the face shield support points 84a, 84b. The faceguard support points 84a, 84b and the support arms 132a, 132b are arranged and configured such that each support arm 132a, 132b is pivotable in the free space 60 between two positions, an operating position in which the visor 132 is folded down and protects the face ( Fig. 20 ), and a parking position in which the visor 132 is folded up and is arranged snugly on the outer surface of the helmet shell 36 ( Fig. 17 and 19 ). The face shield attachment device 84 includes a self-locking support for each support arm 132a, 132b. For this purpose, each plug 136a, 136b contains a spring-biased bolt, which holds the spring-loaded on the holding arms 132a, 132b bearing bush 134a and 134b resiliently biased in the operating position or in the park position.

The visor 132 forms with each support arm 132a, 132b a fork ( Fig. 6 ), in which with the visor ( Fig. 17 ) the wall of the helmet shell 36 is tightly received. With the visor 132 closed, this rests with its upper edge on the front edge of the helmet shell 36, and the lateral edges of the visor 132 abut against the outer surface of the helmet shell. Therefore, there is no possibility either when the visor is closed or when the helmet is in use, for example in forestry work, that branches can hook on the retaining arms 132a, 132b or on the visor 132 and jeopardize the helmet wearer.

In the following, the clamping unit 48 will be described in more detail. The tensioning unit 48 is in addition to the hearing protection 34 other helmet accessories, which is like the hearing protector 34 always within the outline of the helmet shell 36, so that even in the region of the clamping unit 48 no protruding parts are present, where obstacles could get caught. The clamping unit 48 will with reference to the drawings, in particular the Fig. 12-16 , described. Fig. 12 shows a side view of the interior trim assembly 40 of the protective helmet 30, in which the two ends of the neck band 46 are detachably connected in the neck region by the clamping unit 48. Fig. 13 shows in a side view of the protective helmet 30, the interior trim assembly after Fig. 12 built into the helmet shell 36, where the clamping unit 48 as in Fig. 12 is shown in the tensioned state. Fig. 14 shows the protective helmet Fig. 13 in a view from below. Fig. 15 shows a cross-sectional view of the protective helmet 30 in the direction towards the rear. Fig. 16 shows in a partially broken view of the protective helmet 30 after Fig. 13 looking towards the front.

The clamping unit 48 comprises a holder 168, in which the free ends of the neck band 46 are inserted on both sides. The bracket 168 has square cams, which are engageable with angular openings 176 of the neck band 46 in engagement. In this way, the length of the neck band 46 is roughly adjustable according to the head size. The adjustment is expedient so that the protective helmet 30 can be easily placed when not operated clamping unit. The tensioning of the neck band 46, after the helmet 30 has been placed, then takes place with the aid of the clamping unit 48, as explained below.

As shown in Fig. 14 the support shell 172 and the bracket 168 are pivotally connected together by a transmission lever 169. The transmission lever 169 is according to Fig. 14 at one end by means of a hinge 170 at the in Fig. 12 connected to the lower end of the support shell 172. The transmission lever 169 is at the other end according to Fig. 16 connected by means of a hinge 171 at an upper end of the holder 168 in the representation.

The actuation of the clamping unit 148 is effected by a latch flap 174, which according to Fig. 12 is connected by a hinge 173 to the bracket 168. The latch flap 174 is provided below the hinge 173 on its side adjacent to the transmission lever 169 with a cam not visible in the drawings. When the latch flap 174 is closed as shown in FIG Fig. 12 is shown, is pivoted by the action of the cam on the transmission lever 169, the lower end of the bracket 168 away from the hinge 170 to the rear. This pivoting causes the tensioning of the neck band 46. The tensioning unit 48 is braced in the neck region at the back of the head by the support shell 172. The hinge 171 is associated with a non-visible in the drawings spring, which is arranged between the holder 168 and the transmission lever 169 so that the transmission lever 169 with the latch plate 174 open with its hinge 170 is urged towards the lower end of the bracket 168. In the region of the joint 170 between the support shell 172 and the transmission lever 169 another spring (also not visible) is effective, which endeavors to urge the support shell 172 into a position on a stop in which its upper end from the upper end of Bracket 168 is pivoted away.

The operation of the clamping unit 48 is effected by the latch flap 174. When the latch plate 174 is pivoted clockwise and thus closed, as in Fig. 12 is shown, the bracket 168 is pivoted about the hinge 171, so that the support shell 172 at its in the illustration in Fig. 12 bottom edge of the lower edge of the bracket 168 distance. This is the cocked position of the clamping unit, which in the Fig. 12 - 14 can be seen. When the latch flap 174 is pivoted counterclockwise and thus opened, the clamping unit 48 is opened. As a result, the lower edge of the holder 168 can move in the direction of the hinge 170 on the support shell 172, so that the neckband 46 is relaxed and the protective helmet 30 can be put on and taken off. When the protective helmet 30 has been fitted, only the latch flap 174 needs to be folded down to secure the helmet 30 upside down. This can be done comfortably with one hand and also with glove. The support shell 172 is covered on the front with a padding material piece 180.

With reference to the Fig. 21 - 25 and 33 . 34 Now, an embodiment of the protective helmet 30 'according to the invention will be described, which differs from the embodiment of the protective helmet 30 according to the applicant's earlier proposal mainly by additional stabilization of the attachment point of the rearwardly projecting support arm 55 of the interior trim assembly 40 and the accordingly modified training the attachment of this arm differs on the helmet shell.

Another difference is the provision of the chinstrap 300 and its manner of attachment to the helmet shell 36 and interior trim assembly 40, as shown in FIGS FIGS. 26-29 ,

Yet another difference is finally in the formation of the attachment of the vent slide 50 ', which is adapted to the modified attachment of the support arm 56 to the helmet shell 36, as shown in the Fig. 30 - 32nd and 35 ,

Protective helmet 30 according to the applicant's earlier proposal may be provided with a helmet shell and trim assembly adapted to the differences described above, and then in all embodiments shown here for the older proposal and described above corresponds to a protective helmet 30 'according to the present invention which may then optionally be provided with a face shield, a hearing protection and / or a tensioning unit for the headband. The manner of attachment of this helmet accessory would not differ from the method of attachment to the protective helmet 30 according to the earlier proposal of the applicant, so for simplicity, the drawings and the description of the protective helmet 30 are attached to the older proposal of the applicant to a additional illustration and description of the protective helmet 30 'according to the invention and said helmet accessories and the corresponding repetitions that would be associated with avoid. The protective helmet 30 according to the earlier proposal of the applicant is, supplemented by the differences described above, the protective helmet 30 'and thus part of the present invention.

Fig. 21 shows as a detail in an embodiment of the protective helmet according to the invention generally designated 30 'according to the invention in an enlarged scale, a rear part of the helmet shell 36, which with a in Fig. 21 visible holding part 210 is provided for additional fixation of the carrier basket 42 on the helmet shell 236. The holding part 210 is formed as a protruding cam. The holding part 210 is formed on a wall 220 ( Fig. 31 ), which is formed on the inside of the helmet shell 36. It is understood that in the opposite side of the helmet shell 36, ie at the same distance from a longitudinal center axis of the helmet shell, a corresponding second wall 222 (FIG. Fig. 31 ) is formed, which is provided with a holding part 210 opposite the holding part 211. Between the two walls 220, 222 are two transverse to the central axis of the helmet shell 36, rectangular in cross-section slots 178, 179 for insertion of two Fork ends 157a, 157b ( Fig. 23 A detachable attachment of the rearwardly projecting downwardly projecting support arm 56 takes place with the aid of a locking attachment in the longitudinal direction of a rear attachment point on or in the helmet shell (in the illustrated embodiment in the helmet shell) and in an additional attachment point by a suspension or support of the support arm 56 above (as shown) or below (not shown) of the locking attachment inside the helmet shell 36, by the two mutually on both sides of the central longitudinal axis opposing formed as a cam holding parts 210, 212. To connect the back below cantilevered support arm 56 to the additional attachment point is located in the space 60 intermediate part 200 of the support arm 56 to the shown in the embodiment at a distance above the same located holding parts 210, 212 fixed to the helmet shell 36.

The helmet shell 36 with mounted trim assembly 40 is in its entirety in Fig. 33 in a plan view and in Fig. 34 shown in a bottom view. The trim assembly 40 actually also includes the neckband 46 that fits into the FIGS. 22-25 . 33 and 34 but has not been shown for the sake of simplicity.

For its latching attachment to the helmet shell 36 of the projecting rearwardly below support arm 56 has at its free end a locking device, which is formed by the two fork ends 157 a, 157 b and the slots 178, 179. Each fork end 175a, 177b tapers in the region of its projection 56a or 56b toward its free end, namely from an opening 159a or 159b. In the openings 159a, 159b, the helmet shell 36 is received in a form-fitting manner during assembly of the interior trim assembly 40. The intermediate portion 200 of the support arm 56 is then in the space 60, which is present between the inside of the helmet shell 36 and the support basket 42 as soon as the interior trim assembly 40 is mounted in the helmet shell.

The intermediate part 200 (FIG. Fig. 24 ) of the rearwardly projecting bracket 56 is for the additional suspension or support thereof in the additional attachment point to the helmet shell 36 with two provided upwardly projecting webs 212, 214 ( Fig. 25 ). The webs 212, 214 are integrally formed on the support arm 56. Each of the webs 212, 214 is provided at its free end with an opening 228 or 230 such that it can be positively fixed to the holding part 210 or 212 on the helmet shell 36. The holding parts 210, 212 are, as already mentioned above, designed as cams.

The support arm 56 projecting downwards at the rear is engaged in the slots 178, 179 with its two forked ends 157a, 157b on the helmet shell 36 in the manner described above. The webs 212, 214 are aligned parallel to each other and spaced apart by the width of the support arm 56. The support arm 56 projecting downwards forms, with a longitudinal axis 242 of the support basket 42, an angle β in a range of approximately 15 ° -25 ° (FIG. Fig. 24 ).

For mounting the trim assembly 40 in the helmet shell 36, the trim assembly 40 is attached to the helmet shell 36 with the fixation means on each of the laterally downwardly projecting support arms 54, 55, which include through-holes 156, 158, on the rod-like projections 74a, 74b. Previously, the support arm 56 projecting downwards with its fork ends 157a, 157b is inserted into the slots 178, 179 until the helmet shell 36 is engaged in the slots 178, 179. Subsequently, the laterally downwardly projecting support arms 54, 55 engage the base of the rod-like projections 74a, 75b. During this process, the two webs 212, 214 have been displaced on the walls 220, 222 until openings 228, 230 formed in the webs 212, 214 engage the holding parts 210, 212, as shown in FIG Fig. 22 is shown.

It has already been stated above that the angles of inclination which form the laterally downwardly projecting support arms 54, 55 and the laterally rearwardly projecting support arm 56 with a horizontal plane or an axis located in this plane represent essential embodiments of the invention. Thus, the laterally downwardly projecting support arms 54, 56 with an extending transversely to the longitudinal axis 242 of the support basket 42 and the free ends of these support arms 54, 55 extending straight line 244 an angle α in a range of about 30 ° -50 °. The downwardly projecting support arm 56 forms with the longitudinal axis 242nd the support basket 42 an angle β in a range of about 15 ° - 25 °. These angles are important for the introduction of force into the helmet shell 36, so that it can be deformed so that it optimally contributes to the total damping capacity of the protective helmet 30 'in the case of top and lateral load. In addition, an important embodiment of the protective helmet 30 'according to the invention that the laterally downwardly projecting support arms 54, 55 are swept forward and formed before the longitudinal center of the carrier basket 42 on the basket. The force application points are thereby further displaced forward relative to the points at which the support arms 54, 55 are integrally formed on the support basket 42, whereby the introduction of force into the helmet shell 36 is improved in the sense of easier deformability thereof. The support basket 42 is formed as in the protective helmet 30 described above from a rigid, elastically flexible material. At this basket, the laterally downwardly and rearwardly projecting down support arms 54, 55 and 56 are integrally formed, so consist of the same material. The support basket 42 has at its lower edge to the circumferentially closed support strip 148 on which the support arms 54, 55, 56 are integrally formed. Likewise, also in the support basket 42 after the Fig. 23 - 25 the neckband 46 is attached to the carrier basket 42 and has two ends which are releasably connected in the neck region by a tensioning unit 48, which is received as another helmet accessory in the free space 60. The tensioning unit 48 has a support shell 172, which can be tensioned against the back of a wearer of the helmet 30 'during the tensioning of the neckband 46 with the aid of a latch flap 174.

A chin strap 300 forms part of the helmet accessory of the protective helmet 30 'of the invention. The chin strap 300 must be present on a protective helmet which is used as a mountaineer or tree climber helmet. For the chin strap 300, two chin strap attachment points 310, 311 are present on the inner side of the helmet shell 36 in front of the temporal regions ( Fig. 26 ). The two chinstrap attachment points 310, 311 are part of a fastening device 380 for the chinstrap 300. In the chinstrap attachment points 310, 311, the chinstrap 300 can be suspended with two suspension straps 314, 316. Further, the chin strap 300 attachment device 380 includes a rear chin strap attachment point 312. The rear chin strap attachment point 312 is located on the trim assembly 40. The rear chin strap attachment point 312 includes an opening in the rearwardly projecting downwardly support arm 56, in which a further Einhängelasche 318 of the chin strap 300 can be suspended. The Einhängelaschen 314, 316, 318 each have a protruding pin, which is mushroom-shaped. The opening into which each hanger tab is hung has a keyhole-like shape, ie tapering from one end and then expanding to a circular opening. Between the tapered sides of the keyhole-like opening of the mushroom-shaped pin of the suspension lug is guided until it is finally in the subsequent circular opening.

The chin strap 300 is guided from the two front chin strap attachment points 310, 311 rearwardly to the tensioning unit 48, threaded on both sides by the support shell 172 of the tensioning unit 48 and finally brought together in the rear chin strap attachment point 312. Under each temple area, the chinstrap is guided up to a deflection flaps 320 and 330, respectively. The chinstrap 300 extends from the one diverter tab 320 under the chin to the other diverter pocket 330. In this area under the chin, the chinstrap 300 is additionally provided with a size adjustment tab.

When the chinstrap 300 is loaded in tension, its rear end on the support arm 56, which is threaded through the support shell 174, obliquely pulled forward. This stabilizes the attachment of the helmet on the head. Due to the additional attachment of the support arm 56 via the webs 212, 214 on the inside of the helmet shell 36 above the support arm 56, the tensile force of the chin strap 300 is optimally absorbed at the rear end. This prevents that the support arm 56 is pulled out with its free end from the latching connection with the helmet shell 36. Thus, not only is the latching connection between the support arm 56 and the helmet shell 36 stabilized, but also the position of the rear chin strap attachment point 312. It is thus possible for the support arm 56 to support about 50% of the total load introduced while projecting laterally downwardly Each support arms can absorb about 25%.

The helmet shell 36 of the protective helmet has ventilation openings 53 and guide slots 250 at least in a region which adjoins the latching connection point of the rearwardly projecting support arm 56 in the forward direction. 252, 260, 262 for holding elements or cam of the vent slide 50 'on. The retaining elements of the venting slide 50 'comprise a pair of angular elements 258, 260 in its front region and a pair of resiliently deflectable retaining arms 254, 256 in its rear region. The angle elements 258, 260 and the retaining arms 254, 256 are slidably and releasably held in the associated guide slots 260, 262 and 250, 252, respectively, with mounted ventilation slide 50 ', as shown in the Fig. 31 and 35 can be seen. When mounting the vent slide 50 'from the outside ( Fig. 30 ) is introduced with its angle elements 258, 260 in the guide slots 260, 262. At the same time, the support arms 254, 256 are inserted into their guide slots 250, 252, respectively, with the arms being resiliently pushed away from each other until they have passed their associated guide slot. Then they spring back into their starting position and are supported by cams 270, 272 on walls 280 and 282, respectively. The vent slide 50 'has two important functions in the protective helmet 30' according to the invention. On the one hand, it shields the area of the rear attachment point of the interior trim assembly 40 on the helmet shell 36 against impact from the outside. On the other hand, it can be easily replaced and therefore used as a shuttle. That is, air vents of various colors can be kept in stock to personalize a protective helmet for its wearer. For example, a foreman's hard hat can be fitted with a red vent 50 ', a bulldozer's hard hat with a green vent 50', etc. The vent 50 'of the helmet 30' of the present invention allows it to easily slide against a vent 50 'other color can be replaced.

LIST OF REFERENCE NUMBERS

30, 30 '

helmet

32

face protection

34

ear protection

35a

Earmuff

35b

Earmuff

36

shell

37a

support bracket

37b

support bracket

40

Interior assembly

42

pannier

44

headband

46

neckband

47a

support arm

47b

support arm

48

clamping unit

49

bolt

50, 50 '

ventilation slide

51

hole

52

vent

53

vent

54

Beam

55

Beam

56

Beam

56a

head Start

56b

head Start

60

free space

62

reinforcing rib

64

reinforcing rib

66

guide slot

68

holding cam

70

holding cam

72

guide slot

74a

rod-like projection

74b

rod-like projection

76

recess

78

slot

80

Fastening device Hearing protection

80a

Ear protection supporting point

80b

Ear protection supporting point

84

Fastening device face protection

84a

Face protection supporting point

84b

Face protection supporting point

85a

cam

85b

cam

92a

bow spring

92b

bow spring

132

visor

132a

holding arm

132b

holding arm

134a

Ring bearing bush

134b

Ring bearing bush

136a

plug

136b

plug

142

carrying strips

144

carrying strips

146a

junction

146b

junction

146c

junction

146d

junction

148

carrying strips

149

upholstery

150

connecting strips

152

ribs

154

ribs

156

Through opening

157a

fork end

157b

fork end

158

Through opening

159a

opening

159b

opening

168

Support for support shell

169

transmission lever

170

joint

171

joint

172

support shell

173

joint

174

transom flap

176

openings

178

slot

179

slot

180

Upholstered piece of material

200

intermediate part

210

holding part

211

holding part

212

web

214

web

220

wall

222

wall

228

opening

230

opening

242

longitudinal axis

244

Just

250

guide slot

252

guide slot

254

holding arm

256

holding arm

258

angle element

259

angle element

260

guide slot

262

guide slot

270

cam

272

cam

280

wall

282

wall

300

chinstrap

310

Chin strap attachment point

311

Chin strap attachment point

312

Chin strap attachment point

314

hanger clip

316

hanger clip

318

hanger clip

320

switching loop

330

switching loop

340

opening

380

fastening device

α

angle

β

angle

Claims (25)

1. Safety helmet
   having a helmet shell (36),
   having an interior arrangement which comprises an assembly (40) which is in contact with the head and is made up at least of a carrying frame (42), of a head band (44) and of a neck band (46), and
   having means for fastening said assembly (40) on the helmet shell (36), wherein the fastening means comprise at least three carrying arms (54, 55, 56), which are designed in the form of spacers and project laterally downwards from the carrying frame (42) in the temple region and downwards and to the rear in the back-of-the-head region,
   wherein the helmet shell (36) and the carrying arms (54, 55, 56) are dimensioned such that the interior arrangement assembly (40), over its entire exterior outline, is kept at a distance from the helmet shell, and this provides, between the interior arrangement assembly (40) and the helmet shell (36), a free space (60) which extends all around the interior arrangement assembly (40) and is intended for accommodating helmet accessories, comprising at least ear defenders (35a, 35b), together with carrying brackets (37a, 37b), and a tensioning unit (48) for the neck band (46), and also for accommodating fastening devices (80, 84) for the hearing-protection means (32, 34) and for further helmet accessories, comprising at least one face protector and a chin strap (300) and the fastening device (380) for the same, and
   wherein the carrying arms (54, 55, 56) have their free end in each case fastened in a releasable manner on the helmet shell (36),
   characterized in that
   the releasable fastening of the rearwardly and downwardly projecting carrying arm (56) comprises a latching-action fastening means, active in the longitudinal direction of the carrying arm, at a rear fastening point on the helmet shell and also comprises a suspension or supporting means (212, 214), active in the transverse direction of said carrying arm, at an additional fastening point, which is located on the inside of the helmet shell at a distance from the latching-action fastening means.
2. Safety helmet according to claim 1, characterized in that, for the purpose of connecting the rearwardly and downwardly projecting carrying arm (56) to the additional fastening point, an intermediate part (200), which is located in the free space (60) and belongs to the rearwardly and downwardly projecting carrying arm (56), can be, or is fixed on a retaining part (210) on the helmet shell (36), said retaining part being located at a distance above or beneath said carrying arm.
3. Safety helmet according to claim 1 or 2, characterized in that the carrying frame (42) is formed from a stiff, elastically flexible material.
4. Safety helmet according to one of the preceding claims, characterized in that the fastening device (380) for the chin strap has two chin strap fastening points (310, 311) on the inside of the helmet shell (36), wherein lugs (314, 316) of the chin strap (300) can be fitted into said fastening points, and a rear chin strap fastening point (312) on the interior arrangement assembly (40).
5. Safety helmet according to claim 4, characterized in that the rear chin strap fastening point (312) comprises an opening (340) in the rearwardly and downwardly projecting carrying arm (56), wherein a further lug (318) of the chin strap (300) can be fitted into said opening.
6. Safety helmet according to one of the preceding claims, characterized in that the carrying frame (42), along its lower periphery, has a circumferentially closed carrying strip (142), on which the carrying arms (54, 55, 56) are formed.
7. Safety helmet according to one of the preceding claims, characterized in that the neck band (46) is fitted on the carrying frame (42) and has two ends which are connected in a releasable manner in the neck region by a tensioning unit (48), which is accommodated, in the form of a further helmet accessory, in the free space (60).
8. Safety helmet according to claim 7, characterized in that the tensioning unit (48) has a supporting shell (172) which, when the neck band (46) is being tensioned, can be tensioned, with the aid of a locking flap (174), against the back of the head of a person wearing the helmet (30).
9. Safety helmet according to claim 8, characterized in that the chin strap (300) is guided downwards from the two front chin strap fastening points (310, 311) to the tensioning unit (48), threaded through the supporting shell (172) on either side and, finally, brought together at the rear chin strap fastening point (312).
10. Safety helmet according to one of the preceding claims, characterized in that the carrying arms (54, 55), which project laterally downwards in the two temple regions, have means for releasable fixing purposes on the inside of the helmet shell (36).
11. Safety helmet according to claim 10, characterized in that the fixing means, on each of the laterally downwardly projecting carrying arms (54, 55), are designed such that they can be brought into form-fitting engagement with the helmet shell (36).
12. Safety helmet according to one of the preceding claims, characterized in that the rearwardly and downwardly projecting carrying arm (56), for latching-action fastening at its free end, has a latching device (56a, 56b) for fixing the carrying arm (56) on the helmet shell (36).
13. Safety helmet according to claim 11, characterized in that the fixing means, on each of the laterally downwardly projecting carrying arms (54, 55), comprise through-openings (156, 158), which grip rod-like protrusions (74a, 74b) on the helmet shell (36) in each case at a length which is at least equal to the inside width of the through-openings (156, 158), and therefore, when the laterally downwardly projecting carrying arms (54, 55) are subjected to a force from above as a result of the helmet (30) being subjected to loading, this generates a moment which tries to deform the helmet shell (36) inwards as far as the lower periphery.
14. Safety helmet according to one of the preceding claims, characterized in that the carrying frame (42) has two downwardly projecting supporting arms (47a, 47b), on which the neck band (46) can be fixed at a selectable height in each case.
15. Safety helmet according to claim 14, characterized in that the carrying arms (54, 55, 56) and the supporting arms (47a, 47b) are stiffened in addition by ribs (152) formed thereon.
16. Safety helmet according to claim 2, characterized in that, for additional suspension or support in the additional fastening point on the helmet shell (36), the intermediate part (200), which is located in the free space (60) and belongs to the rearwardly and downwardly projecting carrying arm (56), is provided with at least one upwardly or downwardly protruding crosspiece (212).
17. Safety helmet according to claim 16, characterized in that the crosspiece (212) is formed on the rearwardly and downwardly projecting carrying arm (56).
18. Safety helmet according to claims 2 and 16 or 17, characterized in that the free end of the crosspiece (212) is formed such that the crosspiece can be fixed in a form-fitting manner on the retaining part (210) on the helmet shell (36).
19. Safety helmet according to claim 17 or 18, characterized in that the rearwardly and downwardly projecting carrying arm (56) is forked at its free end and is latched in on the helmet shell (36) by way of the two resulting fork ends (157a, 157b) and, in its intermediate part (200), is provided with a pair of the crosspieces (212, 214), which are oriented parallel to one another and are spaced apart from one another by the width of the rearwardly and downwardly projecting carrying arm (56).
20. Safety helmet according to one of the preceding claims, characterized in that the laterally downwardly projecting carrying arms (54, 55) form an angle (α) ranging from approximately 30°-50° with a straight line (244), which extends transversely to the longitudinal axis (242) of the carrying frame (42) and through the free ends of said carrying arms (54, 55).
21. Safety helmet according to one of the preceding claims, characterized in that the rearwardly and downwardly projecting carrying arm (56) forms an angle (β) ranging from approximately 15°-25° with the longitudinal axis (242) of the carrying frame (42).
22. Safety helmet according to Claim 20 or 21, characterized in that the laterally downwardly projecting carrying arms (54, 55) are tilted forwards and are formed on the carrying frame (42) in front of a central transverse axis of the carrying frame (42).
23. Safety helmet according to one of the preceding claims, characterized in that the helmet shell (36), at least in a region which adjoins the latching-action connecting point of the rearwardly and downwardly projecting carrying arm (56) in the forward direction, has ventilating openings (52, 53) and guide slots (250, 252, 260, 262) for retaining elements (254, 256, 258, 259) of a ventilating slide (50').
24. Safety helmet according to claim 23, characterized in that the retaining elements (254, 256, 258, 259) of the ventilating slide (50') comprise a pair of angled elements (258, 259) in the front region of the ventilating slide and a pair of resiliently deflectable retaining arms (254, 256) in the rear region of the same, and these retaining arms can be, or are, retained in a displaceable and releasable manner in the guide slots (250, 252, 260, 262) assigned to them.
25. Safety helmet according to claim 23 or 24, characterized in that the ventilating slide (50') is formed such that it provides external shielding against the action of impact for that region of the helmet shell (36) in which the rearwardly and downwardly projecting carrying arm (56) can be, or is, fastened.

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