Patent ID: 11931968
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 14:
15. The three-dimensionally laminated object modeling apparatus according to claim 1, further comprising:
a check ball arranged between a plasticization chamber and the discharging nozzle, and positioned at an open position at which a flow path of the molten resin that communicates with the plasticization chamber and the discharging nozzle is opened or a closed position at which the flow path is closed;
an elastic member configured to position the check ball at the closed position using an elastic force, wherein
the check ball is configured to:
move, when the piston moves in the direction of approaching the discharging nozzle and a pressure that pressurizes the molten resin in the cylinder exceeds a predetermined pressure, from the closed position to the open position while elastically deforming the elastic member; and
move, when the piston moves in a direction away from the discharging nozzle, from the open position to the closed position using a restoring force by which a shape of the elastic member is returned to a shape before an elastic demonstration.