| 摘要 |
<p>The purpose of the present invention is to provide a holder, of which a gradient is automatically adjusted and disassembled, improving user convenience. To achieve the purpose, a support leg adjusting a gradient angle of the holder is configured to automatically be installed at the angle desired by a user when the user takes down the support leg by the desired angle when the user uses the holder, and the holder is automatically folded when the user takes down the support leg by the maximum angle when the user does not use the holder.</p> |
