| 摘要 |
<p>Sleeve (110) for holding a strip of material has a first opening (116), a spool (120) rotatably mounted about the sleeve axis and having one end (122) protruding out of the sleeve, a flat spiral spring (124) made of metal and fixed with its inner end to the spool, a strip of material having an inner end fixed to the flat spiral spring and surrounding the flat spiral spring so that it can be rotated with the spool, and a base plate connected to the bottom of the sleeve and having an opening for positioning the lower end of the spool. Preferred Features: The strip of material consists of paper, a self-adhesive paper, an aluminum foil, or a plastic.</p> |
