Lock assembly for earthworking apparatus

Details Lock assembly for earthworking apparatus Lock assembly for earthworking apparatus

1980-05-08

1982-04-13

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Floor-working

172386, 1724452, 212229, 292201, 292DIG40, 299 70, 173 39, A01B 1520

Patent

active

043244351

ABSTRACT:
A pivotal lock member (27) is secured to an earthworking apparatus (10) and a plurality of lock stations (28,29,30) are connected to a mounting assembly (21) which supports the earthworking apparatus (10) for rotation. The apparatus (10) can be rotated to a plurailty of angular positions and must be held against rotation in each position. The lock member (27) pivots in and out of engagement with the lock stations (28,29,30) to allow rotation or locking of the earthworking apparatus (10). The lock assembly (26) holds the earthworking apparatus (10) securely against rotary motion but allows some limited radial motion of the apparatus in a plane co-incident with a line of axial force generated by the operation of the earthworking tool (19).

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