Patent ID: 8234725

Claim:
A handle arrangement having a gripping rod ( 12 ), on which at least one suction head ( 14 ) with a suction plate ( 15 ) or a suction piston ( 50 ) and an actuating device ( 17 ) for the suction plate ( 15 ), or respectively suction piston ( 50 ), are arranged on at least one handle end ( 13 a , 13 b ), or between both handle ends ( 13 a , 13 b ), the at least one suction head ( 14 ) can be attached by suction to a porous surface by activating the actuating device ( 17 ) for forming a vacuum acting between the porous surface and the suction plate ( 15 ), or respectively the suction piston ( 50 ), and released therefrom by releasing the vacuum, characterized in that a vacuum loss indicator device ( 22 ), which reacts to the reduction of the vacuum, is provided, the vacuum loss indicator device ( 22 ) has at least one indicator element ( 23 ), in particular mechanically actuable which, by means of a change in the vacuum, can be moved between a position ( 24 ) corresponding to a vacuum for the desired holding force of the handle arrangement ( 11 ), and at least one loss indicator position ( 25 ) signaling a reduction of the vacuum, a bolt is connected at one end with the suction plate ( 15 ) or the suction piston ( 50 ) and on the other end with the indicator element ( 23 ), and a spring element ( 28 , 40 ) is coupled with the indicator element ( 23 ), whose spring force acts counter to the vacuum force exerted by the vacuum in the direction of the flat surface and the indicator element ( 11 ) and the bolt are movable relatively to each other and are held against each other by static friction generated by the vacuum force, so that, when the vacuum is reduced, the static friction can be overcome by means of the resilient force of the spring element ( 40 ) acting perpendicularly to the direction of the vacuum force, so that the indicator element takes up ( 23 ) its loss indicator position ( 25 ).