Device For Connecting Two Parts of a Female Form For Producing Bottom Parts of a Shaft From Concrete

Abstract

The present invention provides a device ( 34 ) for connecting two parts ( 18, 24 ) of a negative mould for producing shaft bottom parts ( 12 ) from concrete, comprising: a positioning element ( 46 ) comprising a holding portion ( 58 ) for holding the first part ( 18 ) of the negative mould on the positioning element ( 46 ) and with a positioning projection ( 50 ) that can be pressed into a second part ( 24 ) of the negative mould, such that the positioning element ( 46 ) and the first part ( 18 ) of the negative mould are provisionally held on the second part ( 24 ) of the negative mould, and a fixing screw ( 38 ) that engages with the first part ( 18 ) of the negative mould and can be screwed into the second part ( 24 ) of the negative mould, in order to press the first part ( 18 ) against the second part ( 24 ) and to fix it thereto.

1 - 14 . (canceled) 
     
     
         15 . A device ( 34 ) for connecting two parts ( 18 ,  24 ) of a negative mould for producing shaft bottom parts ( 12 ) from concrete, comprising:
 a positioning element ( 46 ) comprising a holding portion ( 58 ) for holding the first part ( 18 ) of the negative mould on the positioning element ( 46 ) and with a positioning projection ( 50 ) that can be pressed into a second part ( 24 ) of the negative mould, such that the positioning element ( 46 ) and the first part ( 18 ) of the negative mould are provisionally held on the second part ( 24 ) of the negative mould,   a fixing screw ( 38 ) that engages with the first part ( 18 ) of the negative mould and can be screwed into the second part ( 24 ) of the negative mould, in order to press the first part ( 18 ) against the second part ( 24 ) and to fix it thereto.   
     
     
         16 . The device ( 34 ) of  claim 15 , wherein the positioning element ( 48 ) is held displaceably on the first part ( 18 ) of the negative mould and so that it can be moved towards or away from the second part ( 24 ) of the negative mould. 
     
     
         17 . The device ( 34 ) of  claim 15 , wherein the fixing screw ( 38 ) is connected to the positioning element ( 46 ) directly or indirectly so as to transmit forces. 
     
     
         18 . The device ( 34 ) of  claim 15 , wherein the fixing screw ( 38 ) is passed through a sleeve ( 62 ) and is engaged or able to engage with the sleeve ( 62 ), and in that the sleeve ( 62 ) is engaged or able to engage with the positioning element ( 46 ). 
     
     
         19 . The device ( 34 ) of  claim 18 , wherein the fixing screw ( 38 ) comprises a stop ( 42 ) to come to rest on a stop ( 78 ) of the sleeve ( 62 ), in order to carry along the sleeve ( 62 ) when moving towards the second part ( 24 ) of the negative mould. 
     
     
         20 . The device ( 34 ) of  claim 18 , wherein the sleeve ( 62 ) comprises a stop ( 66 ), in particular in the form of an outer flange, to come to rest on a stop ( 68 ) of the first part ( 18 ) of the negative mould in order to carry along the first part ( 18 ) the negative mould when moving towards the second part ( 24 ) of the negative mould. 
     
     
         21 . The device ( 34 ) of  claim 18 , wherein the sleeve ( 62 ) comprises a stop ( 70 ) to come to rest on a stop ( 48 ) of the positioning element ( 46 ), in order to carry along the positioning element ( 46 ) when moving towards the second part ( 24 ) of the negative mould. 
     
     
         22 . The device ( 34 ) of  claim 18 , wherein the positioning element ( 46 ) comprises a stop ( 58 ) to come to rest on a stop ( 60 ) of the first part ( 18 ) of the negative mould, in order to remove the first part ( 18 ) of the negative mould from the second part ( 24 ) of the negative mould or from a shaft bottom part ( 12 ). 
     
     
         23 . The device ( 34 ) of  claim 22 , wherein the positioning element ( 46 ) comprises a coupling means ( 48 ) for coupling with a pulling tool ( 82 ), in order to pull the positioning element ( 46 ) in a direction away from the second part ( 24 ) of the negative mould. 
     
     
         24 . The device ( 34 ) of  claim 23 , wherein the coupling means ( 48 ) is a bayonet coupling means. 
     
     
         25 . The device ( 34 ) of  claim 15 , wherein the positioning element ( 46 ) is substantially formed by a plate equipped with a positioning projection ( 50 ). 
     
     
         26 . A negative mould for producing shaft bottom parts ( 12 ) from concrete, comprising a first part ( 18 ), a second part ( 24 ) and the device ( 34 ) of  claim 15  for connecting the first part ( 18 ) to the second part ( 24 ), the first part ( 18 ) comprising a passage opening ( 36 ), through which the fixing screw ( 38 ) is or can be passed. 
     
     
         27 . The negative mould of  claim 26 , wherein the passage opening ( 36 ) on one end ( 54 ) facing the second part ( 24 ) is widened radially, the positioning element ( 46 ) being inserted accordingly into the radially widened end ( 54 ) so that it cannot pass right through the passage opening ( 36 ). 
     
     
         28 . The negative mould of  claim 26 , wherein the first part ( 18 ) is a recess core which reproduces an inlet or outlet opening of the shaft bottom part ( 12 ), and the second part ( 24 ) is a negative channel mould which reproduces a channel structure on the shaft bottom part ( 12 ).