Walker device

1. A device in a wheeled walker or rollator, comprising at least one frame member ( 2 ) having a lower end ( 3 ), at least one handle support rod ( 4 ) having an upper end ( 5 ),

a brake-control means ( 6 ) arranged essentially at the upper end ( 5 ) of the handle support rod, said brake-control means ( 6 ) being movable between a neutral position and a brake-application position,

a wheel ( 7 ) located essentially at the lower end ( 3 ) of the frame member, the distance between said wheel ( 7 ) and the brake-control means ( 6 ) being changeable,

a brake element ( 8 ) located adjacent the wheel ( 7 ),

an upper force-transmission member ( 9 ) connected to said brake-control means ( 6 ),

a lower force-transmission member ( 10 ) connected to said brake element ( 8 ), and

a coupling means ( 11 ) for coupling-together said upper and said lower force-transmission members ( 9 , 10 ),

characterised in

that the upper force-transmission member ( 9 ) and the lower force-transmission member ( 10 ) are arranged to move freely relative to one another, when the brake-control means ( 6 ) assumes its neutral position and

that the upper force-transmission member ( 9 ) and the lower force-transmission member ( 10 ) are arranged to be interconnected by means of said coupling means ( 11 ), when the brake-control means ( 6 ) leaves the neutral position,

in response to which braking force is transferred to the brake element ( 8 ).

2. A device as claimed in claim 1 , characterised in that the upper force-transmission member ( 9 ) and the lower force-transmission member ( 10 ) are adjustable relative to one another vertically.

3. A device as claimed in claim 1 , characterised in that the upper force-transmission member ( 9 ) and the lower force-transmission member ( 10 ) are adjustable relative to one another in the vertical direction, automatically and in synchrony upon any change of the distance between the wheel ( 7 ) and the brake-control means ( 6 ).

4. A device as claimed in claim 1 , characterised in that the upper force-transmission member ( 9 ) and the lower force-transmission member ( 10 ) are adjustable relative to one another in the vertical direction in a stepless fashion.

5. A device as claimed in claim 1 , characterised in that the transmission of force between the upper and lower force-transmission members ( 9 , 10 ) is achieved by friction.

6. A device as claimed in claim 1 , characterised in that the coupling means ( 11 ) is a plate allowing free passage therethrough of the lower force-transmission member ( 10 ), said coupling means ( 11 ) arranged to be frictionally locked to the lower force-transmission member ( 10 ) or, inversely, as a result of said plate assuming an oblique position relative to said latter member, when the brake-control means ( 6 ) leaves its neutral position.

7. A device as claimed in claim 6 , characterised in that said plate ( 11 ) is arranged in abutment against the handle support rod ( 4 ) and in that said upper force-transmission member ( 9 ) is coupled to the plate ( 11 ) in a force-transmission fashion.

8. A device as claimed in claim 1 , characterised in that the coupling means ( 11 ) is spring-biased towards its neutral position.

9. A device as claimed in claim 1 , characterised in that the coupling means ( 11 ), the upper force-transmission member ( 9 ), and the lower force-transmission member ( 10 ) are at least partly accommodated inside the frame member ( 2 ) and the handle support rod ( 4 ).

10. A device as claimed in claim 1 , characterised in that the lower force-transmission member ( 10 ) is in the shape of a rigid rod, at least in the area of its coupling part ( 15 ).

11. A device as claimed in claim 1 , characterised in that the shape of the coupling means ( 11 ) causes it to be locked to the lower force-transmission member ( 10 ), when the brake-control means ( 6 ) leaves its neutral position.