Anchoring and support climbing device

Abstract

An anchoring and support climbing device may include a central body suitable for being connected at one end to a wire, and at least one cam rotatably arranged with respect to said body by means of a rotation pin which can be positioned or dislocated with respect to said body between a minimum overall dimensions position and a maximum overall dimensions position of said rotation pin, by movement means, and by and locking means of the same rotation pin. The movement means may include at least two rockers opposed to each other. The locking means may also include a ratchet locking mechanism suitable for allowing single direction rotation with respect to the second rotation pin, so as to prevent the rotational movement of the rockers.

1 . An Anchoring and support climbing device comprising:
 a central body suitable for being connected at one end to a wire;   at least one cam rotatably arranged with respect to said body by means of a;   rotation pin and suitable for anchoring to a rock wall, said cam being suitable for being arranged between a dosed limit position on said body and an open limit position projecting and protruding from said central body;   wherein at least one portion of said rotation pin of the cam can be positioned or dislocated with respect to said body, between a minimum overall dimensions position and a maximum overall dimensions position of said rotation pin by;
 movement means and; 
 locking means of the same rotation pin, so as to increase the extension or opening distance of the cam; 
 characterized in that said movement means comprise at least two rockers opposed to each other, rotatably stabilized and hinged to the body by means of a second rotation pin and in that said locking means comprise a ratchet locking mechanism suitable for allowing the single direction rotation with respect to the second rotation pin, so as to prevent the rotational movement of the rockers. 
   
     
     
         2 . The anchoring and support device according to  claim 1 , where on one end of said rocker said rotation pin to which the cam is rotatably stabilized is housed, so that as the rotation of said rocker varies, the position of the same rotation pin varies. 
     
     
         3 . The anchoring and support device according to  claim 1 , wherein said locking means comprise a rack element rotatably hinged at one end thereof to a rocker by means of a hinge, said rack element being provided on one side with a plurality of recesses and inclined teeth formed on the same rack element, said recesses and inclined teeth being able to cooperatively engage a second pawl stabilized on a rocker opposite to the hinging one of the rack element. 
     
     
         4 . The anchoring and support device according to  claim 3 , wherein said locking means comprise an elastic element such as a torsion spring coaxially arranged on said hinge and suitable for maintaining the rack element in contact with said second pawl during the relative translation movement between them. 
     
     
         5 . The anchoring and support device according to  claim 1 , wherein said locking means comprise a plurality of recesses and inclined teeth arranged according to a crown with a circular radial development formed on the facing surfaces of the respective rockers, said crown being centred at the housing hole of the second rotation pin. 
     
     
         6 . The anchoring and support device according to  claim 5 , wherein said crown formed on the rocker is suitable for engaging in rotational cooperation at least one conjugated crown of the rocker. 
     
     
         7 . The anchoring and support device according to  claim 5 , wherein said rockers are held in contact with the respective crowns by means of at least one elastic contrast element, such as for example a spiral spring coaxially arranged on said second rotation pin. 
     
     
         8 . The anchoring and support device according to  claim 5 , wherein said locking means comprise a movable bracket provided with two slotted ends suitable for sliding radially with respect to the second rotation pin and with at least one inclined surface formed on said slotted ends such as to axially engage at least one rocker to prevent the axial translation thereof with consequent crowns disengagement.