Protective helmet with removable protective lining for cushioning radio circuitry
First Claim
1. A protective helmet, comprising:
- (a) an impact-resistant outer helmet shell (16),(b) a protective padding arranged on the inner side of the outer helmet shell (16) and consisting of a plurality of separate pieces, the padding having an outer side adapted to adjoin the outer helmet shell, the padding having an inner side adapted to adjoin a user'"'"'s head, the protective padding being formed as a separate inner helmet shell which is inserted removably into the outer helmet shell (16),(c) a plurality of recesses integrally formed in the outer side of the protective padding, the recesses extending only through part of the thickness of the protective padding, wherein there remains a layer of protective padding between each recess and the inner side of the padding,(d) a radio-telephone system (30) having components including at least an electronic receiving section, a loudspeaker and a power supply battery, the components of the radio-telephone system being located within said recesses in said protective padding, the radio-telephone system also including a radio antenna provided on the outer surface of the protective padding, the loudspeaker, battery, and antenna being operatively connected to the electronic receiving section,(e) wherein all the recesses (32a, 32b, 36-46) containing the components of the radiotelephone equipment (30) are located towards the rear of the protective padding, and at the lower peripheral edge (15) thereof, wherein the recess which contains the loudspeaker is disposed at a level below that of the user'"'"'s ear, and(f) wherein the loudspeaker recess (36,
46) is connected via an acoustic passage (52) defined by the protective padding to an acoustic cavity (54, 54'"'"') which is provided for the ear and which is also defined by the protective padding.
0 Assignments
0 Petitions
Accused Products
Abstract
Described is a protective helmet comprising an impact-resistant outer helmet shell into which a head padding (10) is removably inserted as separate inner helmet shell. The protective helmet is provided with radiotelephone equipment. With the exception of a microphone and possibly an on/off switch and a battery charge check indicator all the parts of the radiotelephone equipment are provided in recesses (32a 32b, 36-46) provided for them in the head padding (10) at the back at the rear side and at the lower peripheral edge thereof. The two recesses (36, 46) for the two loudspeakers are connected via acoustic passages formed in the head padding (10) to an acoustic cavity provided at ear level. As a result, in the temple and ear region the protective helmet is free from any metal or plastic parts which might cause injury in the event of an impact. In addition, the position of the radiotelephone equipment is chosen so that the equilibrium of the protective helmet is practically not impaired.
52 Citations
17 Claims
-
1. A protective helmet, comprising:
-
(a) an impact-resistant outer helmet shell (16), (b) a protective padding arranged on the inner side of the outer helmet shell (16) and consisting of a plurality of separate pieces, the padding having an outer side adapted to adjoin the outer helmet shell, the padding having an inner side adapted to adjoin a user'"'"'s head, the protective padding being formed as a separate inner helmet shell which is inserted removably into the outer helmet shell (16), (c) a plurality of recesses integrally formed in the outer side of the protective padding, the recesses extending only through part of the thickness of the protective padding, wherein there remains a layer of protective padding between each recess and the inner side of the padding, (d) a radio-telephone system (30) having components including at least an electronic receiving section, a loudspeaker and a power supply battery, the components of the radio-telephone system being located within said recesses in said protective padding, the radio-telephone system also including a radio antenna provided on the outer surface of the protective padding, the loudspeaker, battery, and antenna being operatively connected to the electronic receiving section, (e) wherein all the recesses (32a, 32b, 36-46) containing the components of the radiotelephone equipment (30) are located towards the rear of the protective padding, and at the lower peripheral edge (15) thereof, wherein the recess which contains the loudspeaker is disposed at a level below that of the user'"'"'s ear, and (f) wherein the loudspeaker recess (36,
46) is connected via an acoustic passage (52) defined by the protective padding to an acoustic cavity (54, 54'"'"') which is provided for the ear and which is also defined by the protective padding. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification