Protective helmet; method for reducing or preventing a head injury

Abstract

A protective helmet for a head and a method for reducing or preventing a head injury wherein the protective helmet is equipped with an outer shell made of a hard material and an interior head protection system, which is arranged on the inside of the outer shell and absorbs an impact with the head. The interior head protection system is subdivided into an insert on the shell side and an insert on the head side, and the mutually facing sides of the insert on the head side and the insert on the shell side correspond at least partially to one another. The insert on the shell side can be rotated in at least one direction with respect to the insert on the head side, wherein at least one elevation is provided on the insert on the shell side, such that this elevation engages in a recess which is larger than the elevation and is situated on the insert on the head side and/or at least one elevation is provided on the insert on the head side, engaging in a recess which is larger than the elevation on the insert on the shell side.

1 . A protective helmet for a head, having an outer shell made of a hard material and having an inner supporting device, which is arranged on the inside of the outer shell and absorbs an impact on the head, wherein the inner supporting device is divided into an insert on the shell side and an insert on the head side and the sides of the insert on the head side and of the insert on the shell side which face one another correspond at least partially to one another and the insert on the shell side can be rotated in at least one direction relative to the insert on the head side from a starting position, wherein at least one elevation, which engages in a recess located on the insert on the head side, which is larger than the elevation, is arranged on the insert on the shell side, and/or at least one elevation which engages in a recess located on the insert on the shell side, which is larger than the elevation, is arranged on the insert on the head side. 
     
     
         2 . The protective helmet according to  claim 1 , wherein the starting position, the elevation at least partially comes into contact with at least one limiting means. 
     
     
         3 . The protective helmet according to  claim 2 , wherein the limiting means is arranged on the insert which has the hole. 
     
     
         4 . The protective helmet according to  claim 2 , wherein the limiting means is a web, a disk or a latching arm. 
     
     
         5 . The protective helmet according to  claim 2 , wherein the limiting means is movably arranged on an insert. 
     
     
         6 . The protective helmet according to  claim 2 , wherein the elevation is a pin. 
     
     
         7 . The protective helmet according to  claim 2 , wherein the recess is a hole. 
     
     
         8 . A method for reducing or preventing a head injury, which has been brought about due to a blow which causes a rotational movement, by means of a protective helmet, wherein the protective helmet has an outer shell made of a hard material and an inner supporting device, which is arranged on the inside of the outer shell and absorbs an impact on the head wherein inner supporting device is divided into an insert on the shell side and an insert on the head side, wherein the side of the insert on the head side furthest away from the head has a spherical surface at least in part and the sides of the insert on the head side and of the insert on the shell side which face one another correspond at least partially to one another so that the insert on the shell side is rotated relative to the insert on the head side from a starting position by the impacting blow, wherein at least one elevation, which engages in a recess located on the insert on the head side, which is larger than the elevation, is arranged on the insert on the shell side, and/or at least one elevation, which engages with a recess located on the insert on the shell side, which is larger than the elevation, is arranged on the insert on the head side. 
     
     
         9 . The method according to  claim 8 , wherein the rotation of the insert on the shell side relative to the insert on the head side is restricted by at least one limiting means. 
     
     
         10 . The method according to  claim 8 , wherein the rotation of the insert on the shell side relative to the insert on the head side in the tension direction is restricted or suppressed by at least one limiting means. 
     
     
         11 . The method wherein a protective helmet according to  claim 1  is used.