Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Molded article and method for producing same

A manufacturing method and molding technology, which can be applied in the direction of coating, etc., can solve the problems of increased manufacturing cost, decreased optical properties of the molded body, and inappropriateness.

Pending Publication Date: 2022-07-22
DENSO CORP
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, if the light reaches the gate mark that is not completely smoothed, the light may be reflected in an unexpected direction by the gate mark and escape from the molded body, causing the molded body such as an optical component to be damaged. Reduced optical properties
In addition, it is not appropriate to perform grinding to completely smooth the gate mark, which increases the manufacturing cost.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Molded article and method for producing same
  • Molded article and method for producing same
  • Molded article and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

no. 2 Embodiment approach

[0068] [2-1. Differences from the first embodiment]

[0069] Since the second embodiment has the same basic configuration as the first embodiment, the differences will be described below. In addition, the same reference numerals as those in the first embodiment denote the same structures, and refer to the previous description.

[0070] The cover portion 3 in the first embodiment is molded by injecting the first resin from a total of two gates G provided at positions corresponding to the center in the ±Y direction among the sides on the ±Z side of the base portion 3B. In contrast to this, as Figure 7 As shown, the cover portion 53 in the second embodiment is molded by injecting the first resin from a total of two gates G provided at positions corresponding to the +Y side of the base portion 53B separated in the ±Z direction. different. More specifically, the two gates G are arranged so as to sandwich the XY plane passing through the light shielding member 9 from the ±Z dire...

no. 3 Embodiment approach

[0076] [3-1. Differences from the first embodiment]

[0077] Since the basic structure of the third embodiment is the same as that of the first embodiment, the differences will be described below. In addition, the same reference numerals as those in the first embodiment denote the same structures, and refer to the previous description.

[0078] The cover portion 3 in the first embodiment is molded by injecting the first resin from a total of two gates G provided at positions corresponding to the center in the ±Y direction among the sides on the ±Z side of the base portion 3B. In contrast to this, as Figure 9 As shown, it differs in that the cover portion 63 in the third embodiment is molded by injecting the first resin from a gate G provided at a position corresponding to the center in the ±Y direction among the sides on the +Z side of the base portion 63B. When the cover portion 63 is molded using the first mold M1, the first resin such as Figure 9 flow as indicated by t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A molded body (3) according to one aspect of the present disclosure is a molded body (3) which is formed by molding a resin and which is used by transmitting light through the resin. A gate mark (3C) of the molded body (3), which is a mark of a gate into which resin is injected during molding, is provided on a bonding surface (3D) of the molded body (3), which is a bonding surface (3D) of the molded body (3) that is bonded to another member (21) that does not have translucency.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This international application claims priority based on Japanese Patent Application No. 2019-208127 filed with the Japan Patent Office on November 18, 2019, and the entire contents of Japanese Patent Application No. 2019-208127 are incorporated herein by reference. technical field [0003] The present disclosure relates to a molded body obtained by molding a resin, and a method for producing the molded body. Background technique [0004] Conventionally, there has been proposed a molded body in which molten resin is injected into a mold from a gate, and the resin is molded (eg, injection molded) into a shape corresponding to a gap of the mold. In addition, as shown in Patent Document 1 below, for example, it is proposed to cut a gate mark made of a resin cured by a gate in a mold, and to grind the cut surface. [0005] Patent Document 1: Japanese Patent Laid-Open No. 2014-195921 [0006] As a result of detailed studies...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/14B29C45/16B29C45/27
CPCB29C45/0025B29C45/1615B29C45/2708B29C2045/0027B29K2995/0026
Inventor 秋本廉太郎
Owner DENSO CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com