Patent ID: 7540736
Filing Date: 2009-06-02
Classification: B22D,B29C,Y10T

Abstract:
1. A safety door device of an injection molding machine, comprising: a primary safety door provided slidably to be opened/closed on a front side of the injection molding machine and having a first abutting member; a secondary safety door provided slidably to be opened/closed on a rear side of the injection molding machine and having a second abutting member, said first and second abutting members being abutting each other when said secondary safety door is opened so that said primary safety door opens together with said secondary safety door, and said first and second abutting members being abutting each other when said primary safety door is closed so that said secondary safety door closes together with said primary safety door; an engaging portion provided at said primary safety door; and an engaging member provided at said secondary safety door that engages/disengages with said engaging portion of said primary safety door, said engaging member being in a state unable to engage with said engaging portion when said secondary safety door is closed and being in a state able to engage with said engaging portion when said secondary safety door is opened, wherein said primary safety door and said secondary safety door are coupled with each other by engagement of said engaging member and said engaging portion when said first abutting member is brought closer to said second abutting member within a predetermined distance, with said engaging member being in the state able to engage with said engaging portion.