Molded body and production method thereof
AssigneeDenso Corporation
InventorRentarou Akimoto
Life of this patent
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Abstract
The molded body according to one aspect of the present disclosure is a molded body obtained by molding resin and used by allowing light to pass through the resin. This molded body includes: a plurality of gate marks each being as a mark of a gate through which the resin was injected during the molding; and a weld part disposed in such a manner as to avoid a position where the light passes through the resin.
Claims6
A molded body formed by molding a resin and configured to allow light to pass through the resin, the molded body comprising:
- a plurality of gate marks corresponding to a plurality of gates, each of the plurality of gate marks comprising a mark of a gate through which the resin was injected during the molding;
- and
- a weld part comprised of the resin that is injected through the plurality of gates, the weld part formed from a plurality of flows of resin that flow through the plurality of gates and join together, the weld part positioned away from a position where the light passes through the resin,
- wherein
- the weld part extends in a linear direction,
- the molded body further includes an insert component molded independently of the molded body, and
- the gate marks are disposed in each area divided by the insert component and the weld part.
A molded body formed by molding a resin, in which stress is added to the resin after molding, the molded body comprising:
- a plurality of gate marks corresponding to a plurality of gates, each of the plurality of gate marks comprising a mark of a gate through which the resin was injected during the molding;
- and
- a weld part comprised of the resin that is injected through the plurality of gates, the weld part formed from a plurality of flows of resin that flow through the plurality of gates and join together, the weld part disposed at positions where stress is lower relative to other positions in the resin,
- wherein
- the weld part extends in a linear direction,
- the molded body further includes an insert component molded independently of the molded body, and
- the gate marks are disposed in each area divided by the insert component and the weld part.
A molded body obtained by molding a resin, the resin after molding being partially visible externally, the molded body comprising:
- a plurality of gate marks corresponding to a plurality of gates, each of the plurality of gate marks comprising a mark of a gate through which the resin was injected during the molding;
- and
- a weld part comprised of injecting the resin that is injected through the plurality of gates, the weld part formed from a plurality of flows of resin that flow through the plurality of gates and join together, the weld part disposed at a position that is not externally visible,
- wherein
- the weld part extends in a linear direction,
- the molded body further includes an insert component molded independently of the molded body, and
- the gate marks are disposed in each area divided by the insert component and the weld part.
A production method of forming a molded body by injecting a resin into a mold through a plurality of gates to produce the molded body through which light passes through, the method comprising:
- injecting the resin through the plurality of gates;
- and
- joining the resin together at a weld part,
- wherein
- the weld part formed from a plurality of flows of resin that flow through the plurality of gates and join together,
- the weld part is positioned away from a position at which the light passes through the resin, and
- the weld part extends in a linear direction,
- the molded body further includes an insert component molded independently of the molded body, and
- the gate marks are disposed in each area divided by the insert component and the weld part.
Dependencies are inferred from the claim text.