Abstract: A seat for a vehicle, that includes a headrest with a headstall for supporting the head of a passenger in the seat, wherein the occupant may or may not wear a protection helmet depending on the circumstances. The headstall can assume at least three stable positions: a first position for the cervical support of the head of the seat passenger in which the headrest provides a cervical support function with or without wearing a helmet; a second position for the occipital support of the head of the seat passenger in which the headrest provides an occipital support function without wearing a helmet; a third position for the occipital support of the head of the seat passenger in which the headrest provides an occipital support function while wearing a helmet.

Abstract: A device to support a headset along a wall of a vehicle, that includes a hook that has a base to receive a headband of the headset, with this base being intended to be fastened transversally to the wall by its back and being integral at the opposite front with an external element for holding the headband on the base. The hook has on opening between the back and the external element with a width I at least equal to the width of the headband, permitting the passage of the headband toward the base or during removal from the base. The aforementioned device has an anti-release element blocking the opening over a width at least large enough to prevent the passage of the headband through the opening. This anti-release element can be displaced by manual action directly on the anti-release element or through the headset into a release position to allow the passage of the headband.

Abstract: The invention relates to a seat for a vehicle, that includes a headrest with a headstall for supporting the head of a passenger in the seat, wherein the occupant may or may not wear a protection helmet depending on the circumstances. The headstall can assume at least three stable positions: a first position for the cervical support of the head of the seat passenger in which the headrest provides a cervical support function with or without wearing a helmet; a second position for the occipital support of the head of the seat passenger in which the headrest provides an occipital support function without wearing a helmet; a third position for the occipital support of the head of the seat passenger in which the headrest provides an occipital support function while wearing a helmet.

Abstract: A device to support a headset along a wall of a vehicle, that includes a hook that has a base to receive a headband of the headset, with this base being intended to be fastened transversally to the wall by its back and being integral at the opposite front with an external element for holding the headband on the base. The hook has on opening between the back and the external element with a width I at least equal to the width of the headband, permitting the passage of the headband toward the base or during removal from the base. The aforementioned device has an anti-release element blocking the opening over a width at least large enough to prevent the passage of the headband through the opening. This anti-release element can be displaced by manual action directly on the anti-release element or through the headset into a release position to allow the passage of the headband.

Abstract: A visual aid is used by a pilot in an aircraft to position himself in the cockpit by an axial movement, called movement along the X axis, in an aircraft reference coordinate system, and by a vertical movement, called movement along the Z axis, in the aircraft reference system. The visual aid comprises two geometric shapes (3, 4), separated in space and designed to be visually aligned by the pilot; these shapes have the characteristic that each has a visual reference (31, 41) on its surface, approximately in the same horizontal plane perpendicular to the vertical XZ plane.

Abstract: A visual aid is used by a pilot in an aircraft to position himself in the cockpit by an axial movement, called movement along the X axis, in an aircraft reference coordinate system, and by a vertical movement, called movement along the Z axis, in the aircraft reference system. The visual aid comprises two geometric shapes (3, 4), separated in space and designed to be visually aligned by the pilot; these shapes have the characteristic that each has a visual reference (31, 41) on its surface, approximately in the same horizontal plane perpendicular to the vertical XZ plane.