| 摘要 |
A spring apparatus comprises a substantially linear first segment and a substantially linear center segment, rotatably connected to the first segment by a first bend. A substantially linear second segment is rotatably connected to the center segment by a second bend and has a terminal end spaced apart from the second bend. The terminal end contacts the first segment in a slidable manner as at least one of the second segment and the center segment rotates relative to the first segment to release stored energy.
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