The release member is provided in the base of the assist mechanism and configured to release a force pulling the openably closable unit when {HEAD ~ the openably closable unit} is moved to {TAIL ~ the closed position} 
is moved to
The release member is provided in the base of the assist mechanism and configured to release a force pulling the openably closable unit when { HEAD ~ the openably closable unit } is moved to { TAIL ~ the closed position }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL