Molded casing, mold assembly and forming method

Patent metadata

Field	Value
Publication number	US-9609772-B2
Application number	US-201615086070-A
Country	US
Kind code	B2
Filing date	Mar 31, 2016
Priority date	Apr 16, 2013
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

A molded casing suitable for a handheld electronic device is provided. The handheld electronic device includes a body and the molded casing, and at least one part of the body is covered with the molded casing. The molded casing is in a uniform thickness and has a continuous mosaic surface. The mosaic surface is composed of a plurality of non-coplanar polygons, wherein an intersection line is formed between any two adjacent polygons. An end of any one of the intersection lines is connected to an end of another intersection line or an edge of the mosaic surface.

First claim

What is claimed is:

1. A molded casing, suitable for a handheld electronic device, wherein the handheld electronic device comprises a body and the molded casing, at least one part of the body is covered with the molded casing,
wherein the molded casing is in a uniform thickness, and has a continuous mosaic surface, the mosaic surface is composed of a plurality of non-coplanar polygons, an intersection line is formed between any two adjacent polygons, and an end of any one of the intersection lines is connected to an end of another intersection line or an edge of the mosaic surface.

2. The molded casing as claimed in claim 1 , wherein each of the polygons comprises triangle or quadrangle.

3. The molded casing as claimed in claim 1 , wherein the molded casing is a back cover of the handheld electronic device.

4. The molded casing as claimed in claim 1 , wherein an equivalence radius of a vertex angle at each intersection line is less than or equal to 0.1 millimeter.

5. The molded casing as claimed in claim 1 , wherein any two adjacent polygons of the mosaic surface are plane and oriented in different directions from each other.

Assignees

• Htc Corp

Inventors

• Hu Chih-Kai
• Liao Yu-Jing
• Chuang I-Cheng

Classifications

• B29L2031/3481

  Housings or casings incorporating or embedding electric or electronic elements · CPC title

• G06F1/1656

  Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203) · CPC title

• B29C2043/022

  having locally depressed lines, e.g. hinges · CPC title

• G06F1/1626

  with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs] · CPC title

• B29C43/02

  of articles of definite length, i.e. discrete articles {(B29C35/0227 takes precedence)} · CPC title