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US 2017/0087752 A1Published application
Injection mold, mold component, method for manufacturing molded article, and method for manufacturing dome-type cover
AssigneeCanon Kabushiki Kaisha
InventorShusuke Tobita
Life of this patent
Estimating the term…
Abstract
An injection mold includes a cavity formed by a plurality of members including at least a convex surface member and a concave surface member, and a gate formed by a plurality of members including at least a flash formation preventing member. One of the members forming the gate is disposed so as to be adjacent to one of the members forming the cavity, and is pressed against the adjacent member forming the cavity by a pressure of injected resin.
Claims12
An injection mold comprising:
- a cavity formed by a plurality of members including at least a convex surface member and a concave surface member;
- and
- a gate formed by a plurality of members including at least a flash formation preventing member,
- wherein one of the members forming the gate is disposed so as to be adjacent to one of the members forming the cavity, and is pressed against the adjacent member forming the cavity by a pressure of injected resin.
1 more element
A method for manufacturing a molded article, the method comprising:
- injecting resin into a gate formed by a plurality of members, including at least a flash formation preventing member, and a cavity formed by a plurality of members, including at least a convex surface member and a concave surface member,
- wherein one of the members forming the gate is disposed so as to be adjacent to one of the members forming the cavity, and
- wherein the resin is injected while pressing the one of the members forming the gate against the adjacent member forming the cavity by a pressure of the injected resin.
A mold component for forming a part of a gate, comprising:
- a resin channel formed by a groove portion;
- and
- a resin receiving portion having a surface formed in a direction intersecting with a longitudinal direction of the groove portion.
Dependencies are inferred from the claim text.