Knock-on earth working tool securement assembly

An assembly for securement of an earth working tool to an elongated, tapered member complementary with a socket of the tool to secure the tool to an earth working implement attached to said elongated, tapered member by a wedging frictional grip between said elongated, tapered member and said socket, said arrangement comprising, in combination:

• (a) said elongated, tapered member being an elongated tapered adaptor, said elongated tapered adaptor including:
• i) a first end and an opposed second end;
• ii) securement means for fixedly securing the adaptor to said earth working implement;
• iii) opposed side surfaces complementary with inner faces of the socket of said earth working tool for a wedging frictional grip between the adaptor and the socket upon a forced insertion of the socket over and along the adaptor, in a direction from said first end to said second end of the adaptor;
• (b) blocking means adapted to block an additional relative movement between the socket and the adaptor excessively beyond a position providing a firm wedging frictional grip between the socket and the adaptor required for operative securement of the tool to the implement, to allow release of the grip by a hammer blow at a rear edge of said socket even if there has been said additional relative movement due to an excessive impact at the tool,
• (c) said blocking means being adapted to block said relative movement excessively beyond said position providing a firm wedging frictional grip by abutment against a part of said tool by an abutment surface, said surface having a fixed position relative to said adaptor;
• (d) said means for fixedly securing the adaptor being arranged to secure the adaptor to a shank of said earth working implement, the blocking means being an integral part of said adaptor;
• (e) a transverse passage in said adaptor disposed between said first and second ends and open at both sides of the adaptor;
• (f) a transverse recess means in said socket complementary with said transverse passage for alignment therewith when the socket is in said firm wedging frictional grip with the adaptor;
• (g) a securement pin disposed for a sliding engagement with said passage and freely movable through said recess means to prevent undesired longitudinal sliding of the socket off the adaptor when the wedging frictional grip is lost;
• (h) friction increasing means projecting into said transverse passage and disposed to resiliently press said locking pin agianst said passage to provide a frictional engagement between the adaptor and the pin to resiliently impede undesired movement of the pin out of said passage.

An assembly for securement of an earth working tool to an elongated, tapered member complementary with a socket of the tool to secure the tool to an earth working implement attached to said elongated member by a wedging frictional grip between said elongated member and said socket, said arrangement comprising, in combination:

• (a) said elongated member being an elongated tapered adaptor, said elongated tapered adaptor including:
• i) a first end and an opposed second end;
• ii) securement means for fixedly securing the adaptor to said earth working, implement;
• iii) opposed side surfaces complementary with inner surfaces of the socket of an associated earth working tool for a wedging frictional grip between the adaptor and the socket upon a forced insertion of the socket over and along the adaptor, in a direction from said first end to said second end of the adaptor;
• (b) a transverse passage in said adaptor disposed between said first and second ends and open at the sides of the adaptor;
• (c) transverse recess means in said socket complementary with said transverse passage for alignment therewith when the socket is in said wedging frictional grip with the adaptor;
• (d) a securement pin adapted for a sliding engagement with said passage and freely movable through said recess means to prevent undesired longitudinal sliding of the socket off the adaptor when the wedging frictional grip is lost;
• and
• (e) friction increasing means projecting into said transverse passage and adapted to resiliently press said locking pin against said passage to provide a frictional engagement between the adaptor and the pin to resiliently impede undesired movement of the pin out of said passage.

An assembly for securement of an earth working tool to an elongated, tapered member complementary with a socket of the tool to secure the tool to an earth working implement attached to said elongated, tapered member by a wedging frictional grip between said elongated, tapered member and said socket, said arrangement comprising, in combination:

• (a) said elongated, tapered member being an elongated tapered adaptor, said elongated adaptor tapering at an included angle of about 2 degrees to about 3 degrees in the general direction of operative movement of said implement, said adaptor including:
• i) a first end and an opposed second end;
• ii) securement means for fixedly securing the adaptor to said earth working implement,
• iii) opposed surfaces complementary with inner surfaces of the socket of said earth working tool for a wedging ftictional grip between the adaptor and the socket upon a forced insertion of the socket over and along the adaptor, in a direction from said first end to said second end of the adaptor;
• and
• (b) blocking means adapted to block an additional relative movement between the socket and the adaptor excessively beyond a location providing a firm wedging frictional grip between the socket and the adaptor required for operative securement of the tool to the implement while still allowing release of the tool from the implement by a hammer blow at said socket.