When the wedge lever 54 turns further from the state shown in FIG 8B, the wedge lever 54 moves in an inclined direction along {TAIL ~ the tapered surface} of the wedge lever 54, and is inserted into {HEAD ~ the space} between the two movable stockers 
When the wedge lever 54 turns further from the state shown in FIG 8B , the wedge lever 54 moves in an inclined direction along { TAIL ~ the tapered surface } of the wedge lever 54 , and is inserted into { HEAD ~ the space } between the two movable stockers
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH