Patent ID: 6645580
Filing Date: 2003-11-11
Classification: B44C

Abstract:
A soft-shelled ornament, comprising a soft shell, a hold-down ring, and a seat;said soft shell being a soft plastic film made of a thermoplastic plastics by way of high-pressure injection molding and being expandable with a pressure-filled fluid, said soft shell including a radially outward projected annular flange formed around an opening of said soft shell and having a predetermined width, and said annular flange having a shape corresponding to that of said hold-down ring and said seat to be tightly clamped between said hold-down ring and said seat; said hold-down ring including a contact surface with a first annular heat-sealing line and a first annular recess located at a radially inner side of said first annular heat-sealing line; a leak-proof rubber ring and said first annular recess having a predetermined depth for receiving said leak-proof rubber ring therein; and said seat including a contact surface for contacting said contact surface of said hold-down ring with a second annular heat-sealing line corresponding to said first annular heat-sealing line on said hold-down ring, and a second annular recess located at a radially inner side of said second annular heat-sealing line and corresponding to said first annular recess on said hold-down ring to hold said leak-proof rubber ring between said first and said second annular recesses; said seat also including a fluid inlet, and a fixing bar projected from an inner side of said bottom surface adjacent to said fluid inlet; a flexible rubber plate connected to said fixing bar to bear against and completely cover an inner end of said fluid inlet, such that said flexible rubber plate can be lifted only in an inward direction to allow a fluid to flow into but not out of said soft shell via said fluid inlet; and said soft-shelled ornament being assembled by connecting said flexible rubber plate to said fixing bar to completely cover said inner end of said fluid inlet and positioning said rubber ring in said second annular recess on said seat, putting said soft shell above said seat with said annular flange flatly seated on said rubber ring, putting said hold-down ring from a top of said soft shell onto said seat, heat-sealing said soft shell, said hold-down ring, and said seat into an integral unit by way of supersonic welding along said first and said second heat-sealing lines, and finally, injecting a desired fluid into said soft shell via said fluid inlet under a predetermined pressure to expand said soft shell to a predetermined degree.