Arrangement for securing a hearing protector to a helmet and a helmet with such an arrangement

Abstract

Arrangement for securing a hearing protector to a helmet, which arrangement comprises a cap holder piece ( 102 ) and a helmet piece ( 101 ). The cap holder piece contains a rotary plate ( 103 ), a bistable element ( 104 ) and a cap holder element ( 105 ), which is secured by means of the bistable element to the rotary plate to allow a hearing protection, secured to the cap holder element, to take up a tilted out and a tilted in position relative to the rotary plate. The helmet piece comprises means ( 112, 112 ′) of attachment to a helmet and a receiving piece ( 111 ), in which the rotary plate is secured, able to turn about an axis of rotation, which receiving piece includes a resilient tongue ( 113 ) essentially parallel to the axis of rotation and a first stop piece ( 116 ) which, under the action of the resilient tongue and in cooperation with a second stop piece ( 132 ) arranged on the rotary plate, releasably maintains the rotary plate in a first rotational position relative to the receiving piece. To prevent the cap holder piece from accidentally leaving the first rotational position, the arrangement includes a first projection ( 119 ) extending from the receiving piece essentially parallel to the axis of rotation, which in the first rotational position limits the motion of the rotary plate toward the resilient tongue by thrusting against the cap holder piece.

1 . Arrangement for securing a hearing protector to a helmet, which arrangement comprises a cap holder piece ( 102 ) and a helmet piece ( 101 ), wherein 
 the cap holder piece contains a rotary plate ( 103 ), a bistable element ( 104 ) and a cap holder element ( 105 ), which is secured by means of the bistable element to the rotary plate to allow a hearing protection, secured to the cap holder element, to take up a tilted out and a tilted in position relative to the rotary plate, and    the helmet piece comprises means ( 112 ,  112 ′) for the attachment to a helmet and a receiving piece ( 111 ), in which the rotary plate is secured, pivotal about an axis of rotation, which receiving piece includes a tongue ( 113 ) which is resilient in a direction essentially parallel to the axis of rotation and a first stop piece ( 116 ) which, under the action of the resilient tongue and in cooperation with a second stop piece ( 132 ) arranged on the rotary plate, releasably maintains the rotary plate in a first rotational position relative to the receiving piece, characterized by    a first projection ( 119 ) extending from the receiving piece essentially parallel to the axis of rotation, which in the first rotational position limits the motion of the rotary plate toward the resilient tongue by bearing against the cap holder piece.    
   
   
       2 . Arrangement according to  claim 1 , wherein the first projection ( 119 ) is arranged so that in the first rotational position it limits the motion of the rotary plate ( 103 ) by bearing against the bistable element ( 104 ).  
   
   
       3 . Arrangement according to  claim 1 , containing a third stop piece arranged on the rotary plate ( 103 ) which, under the action of the resilient tongue ( 113 ) and engaging with the first stop piece ( 116 ), releasably maintains the rotary plate in a second rotational position relative to the receiving piece, wherein the arrangement contains a second projection ( 118 ) which, in the second rotational position, limits the motion of the rotary plate toward the resilient tongue by bearing against the cap holder piece.  
   
   
       4 . Arrangement according to  claim 3 , wherein the second projection ( 118 ) is arranged so as to limit the motion of the rotary plate by bearing against the bistable element in the second rotational position.  
   
   
       5 . Arrangement according to  claim 3 , wherein the first and second projection are formed as a continuous projection.  
   
   
       6 . Arrangement according to  claim 1 , wherein the rotary plate ( 103 ) is secured releasably in the receiving piece ( 111 ) by snap action under the influence of the resilient tongue ( 113 ).  
   
   
       7 . Arrangement according to  claim 1 , wherein the means for attachment of the helmet piece to a helmet include at least one flexible male part ( 112   c ) for separable snap fastening to a corresponding female part on the helmet.  
   
   
       8 . Arrangement according to  claim 1 , further including a helmet.