To enable opening or closing of this opening-closing hanger device at a single action by forming a holding means crossing a vertical shaft between the body and the vertical shaft while an elastic means is made to work on the vertical shaft.

A vertical path-shaped mounting part 20 is fitted in a body 10 to move a vertical rod 13 vertically and when the vertical rod 13 is pushed down on the body 10 by an interlocking mechanism 21, catch rods 11 and 12 are opened and with the vertical rod 13 pushed up, catch rods 11 and 12 are closed. A resilience means 14 is fitted to energize a vertical shaft 13 in the direction of keeping the pair of left and right catch rods 11 and 12 opened and is mounted compressed in a chamber 25 with the lower end part of the vertical shaft 13 moving vertically to be energized upward. To keep the opening of the catch rods, a holding means 15 is interposed between the body 10 and the vertical shaft 13 and the left and right catch rods 11 and 12 kept opened are closed by locking the fixing of the vertical shaft 13 by the holding means 15. Thus, the opening or closing action is possible at a signal action by pushing a manipulation member 18 with a manually or automatically pressing element.