Patent ID: 9364983
Filing Date: 2016-06-14
CPC Classification: B22D,B29C

Claim Text:
1. An injection apparatus that injects molding material into a mold through an injection cylinder operated by fluid pressure of an incompressible fluid to fill the mold with the molding material, the apparatus comprising: a pressure accumulating portion, which is connected to an operation chamber in the injection cylinder to accumulate the fluid pressure; a speed reduction mechanism for reducing the speed of the injection cylinder; and a passage for selectively supplying and draining the incompressible fluid to and from the injection cylinder, wherein the injection cylinder includes a movable rod, a plunger is connected to the movable rod, the speed reduction mechanism is located outside of the injection cylinder and the plunger, the speed reduction mechanism includes the receiving member includes a supply port connected to the passage and a drain port communicating with the supply port, and the restriction member has a restriction formed to restrict the passage to decrease a flow rate of the incompressible fluid from the supply port to the drain port.