End hose for discharge of thick substances
AssigneePutzmeister Engineering GmbH
InventorAustin Quier
Life of this patent
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Abstract
The invention relates to an end hose for discharge of thick substances, particularly of liquid concrete. The end hose (12) can be connected with its entry-side end to a pressure feed line (14) of a mobile thick-matter pump, and has a discharge opening (16) for the thick substances at its exit-side end, and consists of a flexible material. In order to prevent the end hose (12) from kicking out when blockages are loosened, it has at least two hose parts (26, 28) having different bending rigidity, connected with one another at a transition point (30).
Claims16
Distributor mast of a concrete pump, having a plurality of mast arms connected with one another at bending joints, and having a pressure feed line composed of several segments, guided by way of the plurality of mast arms, to which liquid concrete is applied by way of a pump, having a mast tip at an end of the pressure feed line, and having an end hose that hangs down vertically and is connected to the end of the pressure feed line, the end hose comprising flexible material and having an entry-side hose part, the end hose having a discharge opening for the liquid concrete at its exit-side hose part, whereby the entry-side hose part and the exit-side hose part are connected with one another at a transition point, whereby the bending rigidity of the exit-side hose part, starting from the transition point, is greater than that of the entry-side hose part, whereby the entry-side hose part has a first elastomer hose material having a first material hardness, whereby the exit-side hose part has a second elastomer hose material having a second material hardness, and whereby the first material hardness is different from the second material hardness.
Dependencies are inferred from the claim text.