ROTARY LOCK MECHANISM OF ANGLE VARIABLE TURNING FENCE, ANGLE VARIABLE TURNING FENCE AND BED

摘要

PROBLEM TO BE SOLVED: To prevent a turning fence from carelessly turning by being pulled up, even if turning fence pulling-up force acts by mistake.;SOLUTION: This rotary lock mechanism has a fitting receiving member 5 fixed in a receiving cylinder 2, and a fitting member 9 fixed to the turning fence 6. The turning fence 6 is supported by the receiving cylinder 2 by inserting and installing the fitting member 9 in an upper end part of the receiving cylinder 2. The turning fence 6 cannot be horizontally turned in a state of being fitted to the fitting receiving member 5 by downwardly moving the fitting member 9. The rotary fence 6 can be freely horizontally turned in a state of removing fitting with the fitting receiving member 5 by upwardly moving the fitting member 9. An engaging tool 10 is arranged for vertically moving in the receiving cylinder 2 in response to the fitting member 9, and an engaging hole 11 is arranged in the receiving cylinder 2. An engaging claw 13 is protruded to be taken in and out of the receiving cylinder 2 from the engaging hole 11 by operation of an operation lever 12. A tip part of the engaging claw 13 inserted into the receiving cylinder 2, is positioned on the engaging tool 10 of a downwardly moving position for fitting the fitting member 9 to the fitting receiving member 5.;COPYRIGHT: (C)2006,JPO&NCIPI