Festo Ag & Co

Dieter Bergemann

Axel Thallemer

Bernd Lorenz

Ansgar Kriwet

A fluid power rotary drive having two head pieces, between which a hose body and a force transmitting structure extend. The head pieces bear against each other via supporting means permitting relative rotatability thereof in Abstract of the Disclosure such a manner that they are prevented from performing an axial relative movement involving mutual motion toward or away from the one another. When the interior space of the hose body is put under pressure a relative rotary movement between the two head pieces is caused.

Fluid operated rotary drive

It is a question of an actuating means adapted to be activated by fluid power, which comprises a hose body ( ) extending between two spaced head pieces ( and ) and whose interior space is able to be subjected to a fluid medium. A strand structure ( ) fixed to both head pieces ( and ) and extending coaxially in relation to the hose body has two strand groups ( and ) in a crossover configuration with bendingly flexible strands ( ) extending adjacent to one another with the same longitudinal alignment within a strand group. An intermediately placed yielding material ( ) between the strand groups ( and ) serves to maintain the strand groups constantly at a distance apart.

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Filderstadt, Germany

Dieter Bergemann