DE3325250A1 - Integral crash helmet for vehicle drivers - Google Patents

Abstract

In an integral crash helmet for vehicle drivers, especially motor cyclists, having a hard outer shell (2) and a soft inner shell (7), together with a chin strap (6), close contact of the helmet with the contours of the driver's head and interior ventilation which is nonetheless sufficient are achieved in that the chin strap (6) is passed on both sides, starting from the rearward, lower helmet region (8), through two deflection eyelets (9) attached to the lower edge of the outer shell (2) in the region of the driver's chin and can be secured below the chin between the deflection eyelets (9). <IMAGE>

Description

Hein Gericke GmbH & Co. Kommanditgesellschaft, Speditionsstr 4000 Düsseldorf

Full-face helmet for vehicle drivers

The invention relates to an integral crash helmet for vehicle drivers, especially motorcyclists, with a hard outer shell and a soft inner shell and a chin strap.

In such integral crash helmets, the hard outer shell is like this in one piece, mostly made of plastic, that the molded The chin guard forms a visor opening with the actual helmet, through a sight glass hinged to the outer shell (Visor glass) can either be closed or opened. Padding is usually glued into the inside underneath the plastic shell (soft inner shell) attached. Furthermore, a strap is attached to the outer shell, which straps the helmet when it is put on State enables.

A disadvantage of such known integral crash helmets is that the tight, almost immovable seat on the head, which is made of Security reasons is required, is usually not guaranteed. For helmets whose soft inner shell is so close to the head contour that the safety requirement of the immovable seat If this were taken into account, the disadvantage arises that a sufficient Ventilation and thus condensation drainage is not feasible. This results in unreasonable wear over a longer period of time Annoyance for the driver. So far it has not been possible to meet the requirement of a tight fit on the one hand adequate fresh air conditioning inside the

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To reconcile the helmet. A further complicating factor is that inside the helmet due to the external pressure on the one hand and the dynamic pressure from the inside on the other, flow and pressure conditions arise that depend on the position of the head of the driver j, for example on a motorcycle, can lead to an unintentional opening of the visor. Another disadvantage of the known helmet is that, in the event of an accident, the head's lateral swiveling clearance to the collarbone towards is very low and due to the edge effect of the helmet there is a risk of broken collarbones under heavy loads appear.

Proceeding from this, the invention is based on the object while avoiding the disadvantages described to create an improved full-face helmet that is both close to the head contour of the driver and adequate ventilation is guaranteed. Hydraulic conditions should be avoided, which can lead to unintentional lifting of the visor glass; in spite of the required sufficient ventilation on the other hand, the stability of the helmet cannot be reduced for the same weight. After all, the freedom of movement of the Head by the belt guide and the tight fit of the helmet on the head contour of the driver is not hindered and in particular broken collarbones should be avoided in accidents.

The technical solution for a full-face helmet the above * kind suggested that the chin strap on both sides, starting from the rear, lower helmet area, through two on the lower On the edge of the outer shell in the driver's chin area, attached deflection eyes are guided and can be closed between the deflection eyes under the chin is. These deflection eyes are preferably adjustable forwards and backwards.

* mentioned

The invention is based on the basic idea at a Integral crash helmet of the type mentioned above to attack the chin strap in the lower rear helmet area and by means of loops in the chin area, so that the helmet can be seen from behind without any choking effect from the chin strap is pulled forward to the rear head contour.

In a practical embodiment of the invention, the chin strap is the strap all the way through the soft inner shell in the driver's neck area, so that even with non-stretchable chin straps a certain elasticity results in the driver's neck area, which increases the firmness of the seat on the back of the head of the driver without exerting unbearably high forces under the chin of the driver through the chin strap.

An exact guidance of the chin strap is according to the invention by a step of the outer shell protruding back and down on the lower edge of the helmet in the area of the driver's chin joint achieved. As a result, the eyelet can be arranged close to the lower edge of the helmet in the front area of the helmet and the chin strap also at Outer shell pulled deep into the driver's neck without unacceptable frictional forces into the soft inner shell in the neck area of the driver can be brought in and through this ^ /. As a result, the force exerted on the driver's chin by the chin strap is applied when the helmet is in the best possible position the contour of the back of the head of the driver is kept as small as possible. At the same time, despite a protective area pulled deep into the driver's neck, the outer shell is level with the The driver's collarbone ensures greater freedom of movement for lowering the head to the side.

The guide of the chin strap according to the invention has the advantage to pull the full-face helmet close to the back of the driver's head, without the air access to the interior of the helmet being significantly impaired, because by pulling from the back to the front of the full-face helmet without any choking effect

COPY

the chin strap in front of the chin and in the driver's breathing area a sufficiently large air space remains, to which the air can be supplied through ventilation openings provided in the area of the chin guard the outer shell can be increased. Sliders help to change the size of the opening, a certain amount To enable controllability of the ventilation system.

The through the firm concern of the integral helmet according to the invention Impairment of the air flow in the back of the head due to the rear head contour of the driver is in accordance with a development of the invention is reduced by an air duct incorporated in the outer shell. One such, preferred by Air duct leading to the rear allows air to be flushed around the driver's head. Such an air duct is preferred in an according to the invention encompassing the back of the head, preferably relatively wide, bead arranged in the outer shell. This bead also has the advantage of increasing helmet stability, what is preferred in terms of the back of the head of the helmet provided ventilation holes are of particular importance is, as such vent holes are undesirable in themselves Create a predetermined breaking point in the outer shell. Such rear vent holes provide a significant improvement Rinsing of the driver's head with air is guaranteed, as the airflow is caused by negative pressure on the back of the helmet causes an air extraction from the helmet, which among other things improves the hydraulic conditions in the helmet to the effect that the tendency of the visor glass to unwanted openings decreases. Such unintentional opening of the visor glass can under certain circumstances, however, in spite of the new type of air circulation, it may not be completely suppressed, so that, according to a further development the invention recommends providing a flip-up visor glass, which in its hinge area, the visor glass in the airstream Has depressing spoiler surfaces.

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Further details, features and advantages of the subject matter of the invention emerge from the following description of a preferred embodiment based on the accompanying drawing. In the drawing show:

Fig. 1 shows an integral helmet according to the invention in

Side view;

Pig. 2 the same full-face helmet, viewed from below

as

Fig. 3 the same full-face helmet in half view

from the front and to the other half from the back.

The integral crash helmet according to the invention has a hard, one-piece Outer shell 2 preferably made of plastic. The chin guard 3 thus formed in one piece can be folded down by a Visor glass 4 transparently closable opening 5 free.

A chin strap 6 is preferably passed circumferentially through the soft inner shell 7 around the rear, lower helmet area 8 and from there on both sides forwards through an eyelet 9 which is attached to the driver's chin area at the lower edge of the outer shell. The chin strap 6 under the driver's chin can be adjusted and closed in a known manner between these two deflection eyes. Through the eyelets, the pull exerted by the driver's chin downwards on the chin strap is deflected backwards and pulls the outer shell 2 with the soft inner shell 7 fastened inside it forward and close to the driver's rear head contour.

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One in the area of the driver's chin joint on the lower edge of the helmet to the rear, downward projecting step 10 of the outer shell allows the chin strap 6 from the relatively far outside standing deflection eyes 9 to introduce low-friction inwards into the inner shell.

One incorporated into the outer shell 2 inside the helmet The air duct provided is preferably within a relatively wide area surrounding the back of the head area 11 of the driver Bead 12 of the outer shell 2 is arranged.

Air passage openings are preferably located directly below the bead 12 in the back of the head area 11 of the outer shell 2 13 at the end of the air duct provided in the interior of the helmet, the one on the front is supplied with fresh air through ventilation holes 14 in the area of the chin guard 3, which is regulated by a self 15 can be.

The hinged visor glass 4 is in its joint area 16 equipped with laterally protruding spoiler surfaces 17 which press down the visor glass in the airstream and preferably has tactile and visible locking elements 18 on.

Due to the arrangement of the ventilation holes 13 (air passage openings) just below the bead 12 is also achieved that moisture and dirt on the immediate entry into the Vent holes 13 are prevented.

R / Sch / sz

Reference ζ ei Chenli ste ^ 3 ^ 3 ZOU

1 full-face helmet

2 outer shell

3 chin guard

4 visor glass

5 opening

6 chin strap

7 inner shell

8 rear lower helmet area

9 deflection eyelets

Step at the back of the head Beading ventilation holes (air passage openings) Ventilation holes slider joint area spoiler surfaces Locking elements

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Claims (8)

: - ■ -: · - ■: -. 'RATENTANWÄLTE D'PL.-ING. ALEX S TE NG E R Kaiser-Friedrich-Ring 70 'DIPL.-ING. WOLFRAM WATZKE D-4000 DÜSSELDORF 11 DIPL.-ING. H E I N Z J. RING EUROPEAN PATENT ATTORNEYS _______ Our reference: 24 409 Date: 1 ± # July l ^ Qj Hein Gericke GmbH & Co. Kommanditgesellschaft, Speditionsstr. 1-3, Düsseldorf Fat claims: 1. Full-face helmet for vehicle drivers with a hard exterior (2) and a soft inner shell (7) and a chin strap (6), characterized in that the chin strap (6) on both sides, from the rear, lower Starting from the helmet area (8), through two deflection eyelets attached to the lower edge of the outer shell (2) in the driver's chin area (9) and can be closed between the deflection eyes (9) under the chin. 2. Integral crash helmet according to claim 1, characterized in that the chin strap (6) circumferentially through the soft inner shell (7) is guided in the driver's neck area. 3. Full-face helmet according to claim 1 or 2, characterized by one in the area of the driver's chin joint on the lower edge of the helmet step (10) of the outer shell (1) protruding downwards to the rear. 4. Integral crash helmet according to one or more of claims 1 to 3, characterized by ventilation holes (13) provided in the back of the head area (11) of the crash helmet. 5. Integral crash helmet according to claim 4, characterized by an air duct incorporated into the outer shell (2). - 2 Telephone (0211) 57 2131 · Telex: 85 B8429 pale d · Telegram address: Rheinpjlcnl · Postscheckkonto Cologne (M Z 17 (1 mn TOl "7ft in- 6. Full-face helmet according to one or more of the claims 1 to 5j characterized by the back of the head area (11) circumferential bead (12) in the outer shell (2). 7. Full-face helmet according to one or more of the claims 1 to 6 _} characterized by a slide (15) for changing the cross-section of the ventilation holes (l4 _a 13). 8. Integral crash helmet according to one or more of claims 1 to 7 j, characterized in that a flip-up visor glass (4) of the integral crash helmet in its hinge area (16) has the visor glass in the airstream pushing down spoiler surfaces (17). R / Sch / sz