MOLD AND METHOD FOR MOLDING RESIN FOAMED MOLDING
First Claim
1. A mold characterized in having a cavity enclosed by at least an upper mold and a lower mold, the mold designed for resin foam moldings including the cavity comprising:
- a cavity main portion to be supplied with foam resin material; and
a cavity end portion to be filled with expanding resin which starts foaming in the cavity main portion, whereinthe cavity end portion is provided at a vertical surface thereof with a vent hole.
2 Assignments
0 Petitions
Accused Products
Abstract
Provided is a mold which can be configured to be able to properly exhaust gas from a cavity and to prevent resin from entering into a vent hole, and a method for molding resin foamed molding using the mold. The mold 1 includes a lower mold 2, an upper mold 4, and a core mold 3 mounted directly under the upper mold 4. The core mold 3 is provided at wall portions 3b, 3c thereof with respective vent holes 6. Annexed members 7 are detachably attached to the outer surface sides of the wall portions 3b, 3c. Each of the annexed members 7 has a tubular shape having an air passage with a shape of a small passage which is in communication with the vent hole, and the sectional dimension of the passage of at least a part of the air passage is smaller than that of the vent hole 6. A nonwoven cloth 10 is attached to the core mold 3 so as to cover each surface thereof facing the cavity. The end portions of the nonwoven cloth 10 also cover the wall portions 3b, 3c, thereby covering the vent hole 6 from the cavity side.
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Citations
9 Claims
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1. A mold characterized in having a cavity enclosed by at least an upper mold and a lower mold, the mold designed for resin foam moldings including the cavity comprising:
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a cavity main portion to be supplied with foam resin material; and a cavity end portion to be filled with expanding resin which starts foaming in the cavity main portion, wherein the cavity end portion is provided at a vertical surface thereof with a vent hole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification