| 摘要 |
A panel, rotatably attached to a body of a telephone set, is provided with a rib having the first and second convex parts. A slide member, slidably held by a panel receiving portion of the body, is provided with a leaf spring which is in contact with a rib supporting portion and the panel receiving portion. When the panel rotates from the panel receiving portion to a position at a desired angle, the first or second convex part of the rib pushes the rib supporting portion, and the slide member then slides relative to the panel receiving portion while causing elastic deformation of the leaf spring. Once the first or second convex part of the rib passes through the rib supporting portion, the slide member is returned to an original position by the leaf spring, and the rib supporting portion supports the rib. Once the slide member slides, the panel rotates from the position at the desired angle to the panel receiving portion, and the slide member is returned to the original position by the leaf spring.
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