21-06-2017 дата публикации
Номер: KR1020170069860A
Принадлежит:
The present invention relates to a calculator keyskin in which a conventional computer keyboard keyskin is applied to a calculator. Typing noise of a calculator of the present invention, which has been conventionally a problem, can be reduced, so the calculator can be conveniently typed in any quiet place. Adhesion of foreign materials in a keyboard caused by a frequent use of the calculator can be prevented. Removal of letters on the keyboard on the top surface of the calculator and stickiness of the keyboard caused due to sweat when a person having a sweating hand or having dermatorrhea uses a calculator can be prevented. The calculator keyskin of the present invention, as shown in FIG. 4, includes three layers. The top layer is polyurethane (10), the middle layer is silicone (20), and the bottom layer is produced by wrapping treatment (30). According to the structure of the keyskin of the present invention, 50% silicone (20) and 50% polyurethane (10) are formed. Sound absorption is maintained ...
Подробнее