FR2539011A1 - Chin strap fastener for crash helmets - Google Patents

Abstract

The chin strap clasp comprises a part attached to the chin strap and a corresponding recess part (4) on the outer shell of the helmet. The part on the strap is shaped as a moulded hook (3) which engages in the recess and acts against any tensile force bearing on the strap. Both the fastening parts (3,4) are designed as magnetic closing members.

Description

CLOSURE FOR THE CHIN OF PROTECTIVE HELMETS.
The present invention relates to a closure for the chin guard of protective helmets, in particular for motorcyclists, part of the closure being provided on the chin guard, the corresponding part being on the outside of the outer shell of the protective helmet.

As is known, the known means for attaching the chin strap to the protective helmet require a great deal of experience, in particular, an inexperienced person must use both hands to close and open this device. This is all the more true for known loop and insertion connection devices. A very important drawback is that it is difficult to open the connection device quickly and surely in the case of a seriously injured person. Inexperienced handling of the chinstrap closure on the protective helmet may present a subsequent risk factor, for example in the case of head and neck injuries. This problem is not sufficiently considered in known closure devices for protective helmets.

The object of the present invention is to provide a closure for the chin guard of protective helmets which can be opened quickly and securely, and which at the same time ensures an easy and secure connection. According to the present invention, this object is achieved by making the part provided on the chin rest as a shaped part with hook / which can engage by the pulling force in a corresponding recess formed in the outside of the outer shell of the helmet. protection, the two parts forming a magnetic loop. According to the present invention, an elastic padding for the chin is provided on the chin guard in order to ensure sufficient traction of the ribbon.

The closure according to the present invention gives the possibility of connecting, by means of the hook part or the recess, the protective helmet to a corresponding part of the motorcycle. In order to protect the helmet against possible theft, a closure of the above type can be made lockable.

The magnetic closure for protective helmets according to the present invention gives the possibility of obtaining a quick, easy and secure connection of the chin strap. The elastic chin padding, designed to provide sufficient traction, prevents the generation of painful pressure loads, without the need to adjust the chin guard, either during fixation or during opening.

The present invention will be better understood with reference to the detailed description below and to the accompanying drawings, in which:
FIG. 1 represents the closure for the chin guard of protective helmets according to the present invention, mounted on a helmet,
FIG. 2 is a cross-sectional view of the closure according to the present invention,
FIG. 3 is a top view of the closure according to the present invention,
FIG. 4 represents the shaped part with a hook for fixing to the motorcycle, against the theft of the protective helmet, and
FIG. 5 represents another embodiment, in which the attachment of the protective helmet to the motorcycle is obtained by the recess formed in the outer shell of the protective helmet.

According to the present invention, the chin guard 1 of a protective helmet 2 is provided with a hook part 3. This hook part 3 is engaged in a corresponding recess 4, formed in the outside of the outer shell of the helmet. protection. The hook part is fixed by the pulling force acting on the chin rest. These two parts form a magnetic loop. In order to ensure a precise adaptation of the protective helmet and sufficient traction of the chin rest, the latter is provided with an elastic padding 5 molded from a plastic material. In this way one can obtain the necessary traction of the chin strap, without having to adjust said strip.

To form a magnetic closure by means of the hook part 3 and the corresponding recess 4, in the embodiment of FIG. 2, it is possible to provide suitable magnets indicated by 5 and 6 The hook part 3 and the recess 4 must have at least one face capable of ensuring magnetic adhesion.

The hook part 3 is preferably provided with a manual gripping portion 7, as shown in FIG. 3. To open the loop, the hook part 3 is pushed upwards in the recess 4, in the direction of the arrow For this purpose, the length of the void will preferably be slightly greater than the length of the hook part.

A chin strap closure of this type also gives the possibility of connecting the protective helmet to the motorcycle, in order to prevent theft of the helmet. For this purpose, the helmet can be fixed by means of the hook part 3 engaging in a recess provided on motorcycle 9, this recess corresponding to the recess in the outer shell of the helmet, and can thus be blocked. This embodiment is shown in FIG. 4.

According to a preferred embodiment, the helmet is not fixed to the motorcycle by means of the hook part provided at the end of the chin guard, but a hook part 10 is provided on the motorcycle to engage in levi-dement 4 provided in the protective helmet This embodiment is illustrated in Figure 5.

Claims (4)

Claims 1. Closure for the chin guard of protective helmets, in particular for motorcyclists, part of this closure being provided on the chin guard and a corresponding part being provided in the outer shell of the protective helmet, characterized in that the part on the chin strap (1) is shaped like a hook part (3) which can engage by the pulling force in a corresponding recess (4) formed in the outside of the outer shell of the protective helmet, the two parts forming a magnetic loop. 2. Closure according to claim I, characterized in that an elastic padding (5) for the chin is provided on the chin strap (1) to ensure sufficient traction.  3 Closure according to claim 1 or 22 characterized in that the protective helmet can be fixed by means of the hook part (3 '10) or by means of the recess (8, 4) to a corresponding part provided on the motorcycle. 4. Closure according to claim 3, characterized in that the closures can be blocked.