| 摘要 |
PROBLEM TO BE SOLVED: To easily exchange a written label by constituting a key pad so as to connect a transparent plastic individual key with a protective cover, to provide the protective cover with a means fixing the protective cover and the individual key to a housing and to make a writable label insertable between the housing and the protective cover. SOLUTION: A protective cover 1 has an opening of a shape of a transparent key (individual key) 2 and is used to mount the key 2 on a housing 7 of a device. The protective cover 1 is located on the housing 7. The housing 7 has ribs 8 on left and right sides of the key 2. A label 6 is inserted between these ribs 8. The key 2 is located on the label 6. Under the key 2, a plastic operating point 4 can be seen. In this case, the label 6 is located on the housing 7 itself. The protective cover 1 can be lifted from the housing 7 together with the key 2 and the label 6 can be removed or exchanged.
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