Classifications

• • A—HUMAN NECESSITIES
  • A42—HEADWEAR
  • A42B—HATS; HEAD COVERINGS
  • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
  • A42B3/32—Collapsible helmets; Helmets made of separable parts ; Helmets with movable parts, e.g. adjustable
  • A42B3/328—Collapsible helmets; Helmets made of separable parts ; Helmets with movable parts, e.g. adjustable with means to facilitate removal, e.g. after an accident
• • A—HUMAN NECESSITIES
  • A42—HEADWEAR
  • A42B—HATS; HEAD COVERINGS
  • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
  • A42B3/04—Parts, details or accessories of helmets
  • A42B3/28—Ventilating arrangements

Definitions

• the present invention relates to a protective helmet comprising a front shell and an articulated rear shell.
• the articulation of the two shells makes it possible to define an open position and a closed position of the helmet.
• This helmet will find its application particularly, although it is not limiting, for the realization of helmets for motorcyclists.
• the helmet If we want the helmet to meet the criteria of holding on the head, comfort and silence, it must be provided in its internal lower part with large, flexible cushions making it very difficult to secure, wearing glasses prohibited during this operation.
• the chin strap In addition, in the event of an accident, the chin strap must be cut off and the helmet removed from the head, which is very difficult and can cause increased stress in the spine which can be affected during the accident. . The slowness of operations also often delays the application of an oxygen mask.
• helmets which consist of several shell parts articulated by a pivot.
• helmets described in patent application FR-A-2-546-
• the 381 includes an articulated front part and a rear part.
• the front part has a rigid chin strap and the rear part is movable between an open position in which it releases a sufficient opening to allow the front passage of the head of a user and a closed position in which it delimits with the rear edge of said chin strap a passage just sufficient for the user's neck.
• the object of the invention is to remedy the drawbacks of protective helmets known hitherto.
• a first advantage of the invention is to make it very easy and comfortable to put on and take off the helmet, even for a spectacle wearer.
• the handling is simplified due to the fact that the mechanism causes a servo guiding the entire movement.
• the mechanism causes a servo guiding the entire movement.
• the helmet Given the configuration of the helmet, it is possible to perfectly adapt its internal walls in contact with the head of the user to improve comfort and position retention. In particular, the part of the head located at the level of the chin is perfectly maintained. From a security point of view, the helmet according to the invention also has the advantage, in a preferred embodiment, of making it impossible to use if it is not locked.
• the helmet offered here offers great speed and simplicity of removal, without having to move the injured person who can lie on his back.
• the helmet proposed here has suitable means for quick disassembly.
• the closing operation makes it possible to tighten the base of the helmet at the level of the neck.
• air intake and noise are limited.
• ventilation means are further provided, particularly at the junction between the two front and rear shell parts.
• the present invention relates to a protective helmet comprising a front shell and a rear shell articulated to be movable between an open position and a closed position.
• the articulation of the two shells comprises at least one link pivotally mounted between the two shells.
• this helmet is such that:
• the side panels are articulated by pivot on the rear shell, It has two levers, each articulated between the side wall of the front shell and a side panel, each lever being capable of be folded down or deployed respectively to close or open the helmet,
• each side panel and the corresponding lever is removable, for an emergency opening, - It comprises locking means between each side panel and the side wall of the corresponding front shell,
• the locking means are located at the front end of the side panels,
• the locking means are removable for emergency opening,
• a connecting body mounted integrally with locking means on the lateral panel and on which the articulation is formed between the lateral panel and the corresponding lever, - It comprises means for ventilating the internal volume the helmet located at the junction between the two shells,
• the ventilation means present:
• Figure 1 is a perspective view of an embodiment of the invention.
• Figure 2 is a side view of a helmet according to the invention, and Figure 3 is a sectional view, in the closed position.
• Figure 4 is a side view in the open position, and
• Figure 5 is a sectional view.
• Figure 6 illustrates a more advanced opening phase and Figure 8 is a sectional view.
• Figure 7 shows a detail of articulation of the invention.
• Fig. 7 bis is another embodiment.
• Figures 9 to 12 illustrate a possibility of removing the helmet, in particular in an emergency, if the user is injured and lying on the ground.
• the helmet of the invention comprises a front shell 1 and a rear shell 2, able to substantially cover the head of the user.
• a visor 3 is advantageously provided in the front part.
• the articulation between the front shell 1 and the rear shell 2 comprises at least one connecting rod 6 pivotally mounted on each of the two shells 1, 2, by means of pivot connections identified 12 and 13.
• Figure 2 shows a closed position in which the rear shell 2 is applied to the front shell 1.
• Figure 6 shows a situation of complete opening of the helmet, where it is clearly seen that the rear shell 2 is largely retracted so as to provide sufficient opening for the passage of the head. To reach this position, an intermediate position is shown in Figure 4.
• the helmet comprises two lateral panels 4a, 4b, articulated on either side of the rear shell 2 in particular by an articulation 11a,
• the side panels 4a, 4b are separated from the application surfaces 8a, 8b, of the front shell 1, and allow the combined movement of recoil and rotation of the rear shell 2.
• levers 7a, 7b articulated on the one hand to the side wall of the front shell 1, for example by a pivot link 9a, 9b, and on the other leaves at a side panel 4a, 4b at a joint 10a, 10b.
• the lever 7a, 7b is adapted to be folded down on the application surface 8a, 8b in the closed position of the helmet, while in open position it is deployed until it gradually tilts towards the rear of the helmet in Figures 5 and 8.
• FIG. 7 shows an example purely indicative of a possibility of forming the connection between each lever 7a, 7b and the corresponding side panel 4a, 4b.
• two freedom of movement in rotation along axes 17, 18 perpendicular are preserved in order to form the joint 10a.
• the joint 10a here has a double freedom of movement (two rotations).
• the freedoms of movement are achieved in a very distinct manner without this being limiting by means of hinge systems.
• the fixing of the lever 7a on the side panel 4a is further preserved by means of a screw 20.
• Figure 7a illustrates another possibility of making the connection between each lever 7a, 7b and the corresponding side panel.
• the articulation 10a, 10b is here formed on a connecting body secured to the side panel 4a, 4b.
• the mounting of the connecting body on the side panel 4a, 4b is ensured by means common to the locking means 5a, 5b which will be explained below in more detail.
• a screw 20 secures both the locking means 5a, 5b and the connecting bodies 21.
• locking means 5a, 5b are present on the side walls to removably secure the front shell 1 and the movable part formed here of the rear shell 2 and side panels 4a assembly, 4b. More particularly, the locking means 5a, 5b may be formed at the front end of the side panels 4a, 4b, for example in the form of mechanical press button systems.
• the joints between the different parts which have been mentioned above can be produced in different ways and by any common means. In particular, the joints can be made mechanically by hinged systems or exploit the elastic properties of the materials used to form the link 6 and the levers 7a, 7b, and the side panels 4a, 4b. In addition, greater freedom of movement can be granted than a simple pivot connection at the joints, and in particular, ball joints can be formed.
• ventilation means are present at the junction 16 between the front shell 1 and the rear shell 2, so as to create communication between the internal volume of the helmet and the ambient air.
• the formation of a helmet in two shell parts 1, 2 and on this point advantageous since it makes it possible to take advantage of the existing junction 16 to achieve this communication with the internal volume of the helmet, without any other need for drilling the shell .
• a system exploiting the Venturi effect is implemented for ventilation.
• one or more reliefs 14 are formed on the front shell 1, for example according to the case of FIG. 1.
• recesses 15 are produced on the rear shell at level of said junction 16. An air movement is therefore produced at this level by the application of a vacuum.
• the rotational movement of the link 6 around the articulation axis 12 will transform the translational movement backwards caused by the levers 7a, 7b into a translation and rotation movement combined upwards of the assembly thus formed by the rear shell 2 and the side panels 4a, 4b, so as to ensure maximum ascent.
• the helmet is released from the head forward by tilting it around the chin.
• the front shell 1, the rear shell 2 and the side walls 4a, 4b have a base adapted to be applied on the periphery of the neck of the user to maintain and seal .
• These four elements therefore participate in combination, in the correct positioning of the helmet and in the comfort of the user.
• the part of the front shell 1 returning under the chin of the user which here provides most of the retention effect of the helmet, is lined inside a self-forming material of gel type, allowing all users, whatever the morphology of their chin, to make room for their personal shape without the need to intervene to exchange a part.
• a self-forming material of gel type allowing all users, whatever the morphology of their chin, to make room for their personal shape without the need to intervene to exchange a part.
• connection between the levers 7a, 7b and the side walls 4a, 4b are designed to be removable from the outside, for example by means of screws 20 as shown in FIG. 7.
• the tilting of the front shell 1 is possible upwards by eliminating any movement and enslavement effect caused by the levers 7a, 7b in normal use.
• the front shell 1 rotates freely around the axis 12 and the link 6 continues to produce its effect giving great ease in the deployment of the front shell 1 around the head.
• FIGS. 10 to 12 a complete release of the face and the head of the user is achieved, the front shell 1 resting on the ground after its opening movement, thus facilitating access to the tracks. respiratory and transport, the helmet remaining naturally on the ground.

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• Helmets And Other Head Coverings (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=31502994

Family Applications (1)

Country Status (6)

Cited By (1)

Families Citing this family (6)

Family Cites Families (8)

• 2002
  • 2002-08-30 FR FR0210744A patent/FR2843855B1/fr not_active Expired - Fee Related
• 2003
  • 2003-08-04 DE DE60327859T patent/DE60327859D1/de not_active Expired - Lifetime
  • 2003-08-04 EP EP03773824A patent/EP1536709B1/de not_active Expired - Lifetime
  • 2003-08-04 WO PCT/FR2003/050026 patent/WO2004019717A2/fr not_active Ceased
  • 2003-08-04 AU AU2003282204A patent/AU2003282204A1/en not_active Abandoned
  • 2003-08-04 AT AT03773824T patent/ATE432628T1/de not_active IP Right Cessation

Non-Patent Citations (1)

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