E - Fixed Constructions – 02 – F
Patent
E - Fixed Constructions
02
F
144/78, 37/9
E02F 9/28 (2006.01) E02D 5/36 (2006.01)
Patent
CA 1097066
ABSTRACT OF THE DISCLOSURE A tool is provided herein which is intended for use in conjunc- tion with carrier machinery, primarily a rockbreaker, for example, a dig- ging machine. The tool includes two axially aligned substantially elon- gate members. One of such elongate members may have one end introduced into the carrier machinery with its other end projecting out of such machine. The other, protecting end may be disposed in a central recess in the second elongate ground engagement member. The second elongate ground engagement member has an external abutment at that upper end. A third member includes a body having an aperture mating with the external circum- ference of the second elongate ground engagement member. The third mem- ber is secured relative to the rockbreaker unit by means enabling the third member to slide relative to the length of the second elongate ground engagement member between an upper limit position wherein it engages the external abutment on the second elongate ground engagement member, and a lower limit position, the third member surrounding the second substantially elongate member, the third member being so slidable by relative displace- ment of the rockbreaker unit with regard to the second substantially elon- gate ground engagement member. When the carrier machinery is in operation, it impacts the engaging end of the first member, thereby impacting the second member, which may operate as a plunger for producing holes in the ground. The second elongate ground engagement member is driven into the Abstract (cont'd) ground in consequence of a series of short impacts of the carrier machinery on the first member. Because of the interconnectors, the second elongate ground engagement member is pulled out of the ground when the hole has the required depth. The engagement or lower portion of the second elongate ground engagement member may comprise different tools for different pur- poses. The structure of this invention therefore provides a tool whose services life and speed of operation are substantially greater than has been possible heretofore.
304139
Andreasson Lars I.
Marcus & Associates
LandOfFree
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