发明名称 |
Keypad including polyurethane resin, and apparatus and method for fabricating the same |
摘要 |
There is provided an electronic product having a keypad including polyurethane resin. A cellular phone (100) as the electronic product has a keypad (P) including the polyurethane resin as a keypad surface and being positioned on a circuit board (6) of the cellular phone (100). A method for fabricating the keypad (P) includes the steps of: (a) printing numerals and characters on button-key portions of a polyurethane film to produce a printed polyurethane film; (b) inserting the printed polyurethane film between a first die and a second die; (c) pressing the printed polyurethane film by compressed air injected into the first die connected to a compressor; (d) adsorbing the printed polyurethane film on a concave surface of the second die by sucking air between the printed polyurethane film and the second die connected to a vacuum pump, thereby forming a base keypad having protrusions formed on the button-key portions; and (e) injecting silicone into insides of the protrusions. There is an advantage that the keypad (P) including the polyurethane resin as the keypad surface is not slippery and soft. |
申请公布号 |
AU3771601(A) |
申请公布日期 |
2001.08.20 |
申请号 |
AU20010037716 |
申请日期 |
2001.02.14 |
申请人 |
BYUNG KWAN MIN |
发明人 |
BYUNG KWAN MIN |
分类号 |
H04M1/00;B29C35/16;B29C45/14;B29C51/10;B29C51/42;H01H13/702;H04M1/23 |
主分类号 |
H04M1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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