Wedge arrangement for removably affixing a work tool or work tool holder to a base member on mining, road working or earth moving machinery, and the like

A work tool holder of the type to be removably affixed to a base member of a mining, road working or earth moving machine by means of a wedging arrangement, said work tool holder comprising:

• a body having top and bottom walls, front and back walls, and a pair of side walls;
• and a body extension adjacent said top wall and extending outwardly beyond one of said front and back walls.

A work tool holder of the type to be removably affixed to a base member of a mining, road working or earth moving machine by means of a wedging arrangement, said work tool holder comprising:

• a body having top and bottom walls, front and back walls, and a pair of side walls, said bottom wall having a slot adapted to receive a portion of said base member and a wedging element.

A work tool holder of the type to be removably affixed to a base member of a mining, road working or earth moving machine by means of a wedging arrangement, said work tool holder comprising:

• a body having top and bottom walls, front and back walls, and a pair of side walls;
• and a body portion adjacent said bottom wall and extending outwardly beyond one of said front and back walls.

The work tool holder of claim 49 including a body protrusion adjacent said bottom wall and extending outwardly from the other of said front and back walls.

A base member of the type to removably receive a work tool holder of a mining, road working or earth moving machine by means of a wedging arrangement, said base member comprising:

• a block having top and bottom walls, front and back walls, and a pair of side walls, said block having a slot therein extending from said top wall towards and spaced from said bottom wall and adapted to receive a portion of a said work tool holder and a portion at least of said wedging arrangement, a portion of said slot being undercut so as to extend beneath said top wall.

A base member of the type to removably receive a work tool holder of a mining, road working or earth moving machine by means of a wedging arrangement, said base member comprising:

• a cylindrical drum, and a plurality of parallel dove tailed groves in the outer surface of said drum, said groves being adapted to receive a portion of said work tool holder and a portion at least of said wedging arrangement.

A base member of the type to removably receive a work tool holder of a mining, road working or earth moving machine by means of a wedging arrangement, said base member comprising:

• a cylindrical drum;
• and a plurality of blocks affixed to said drum, each said block having top and bottom walls, front and back walls, and a pair of side walls, said block having a slot therein extending from said top wall towards and spaced from said bottom wall and adapted to receive a portion of a said work tool holder and a portion at least of said wedging arrangement, a portion of said slot being undercut so as to extend beneath said top wall.

A base member of the type to removably receive a work tool holder of a mining, road working or earth moving machine by means of a wedging arrangement, said base member comprising:

• a block having top and bottom walls, front and back walls, and a pair of side walls;
• and a male element extending from said top wall and adapted to be received within an aperture provided in a said work tool holder, said male element having an undercut portion to receive a portion at least of said wedging arrangement.

A wedge member for effecting a connection between a work tool holder and a base member of a mining, road working or earth moving machine, said wedge member comprising:

• a body adapted to be located between an extension on one of said work tool holder and said base member and the other of said work tool holder and said base member, and means on said body for wedging it between said extension and the other of said work tool holder and said base member.