| 摘要 |
A cushion includes a cylinder, a base, an elastic element, a first bushing and a second bushing. The cylinder is made of a composite material and formed with a lug. The base is made of a composite material and formed with a lug at an end and a threaded bolt at another end. The threaded bolt is inserted into the cylinder. The elastic element is compressed between the cylinder and the base. The first bushing is disposed in the lug of the cylinder. The first bushing is made of another material than the composite material of the cylinder. The second bushing is disposed in the lug of the base. The second bushing is made of another material than the composite material of the base.
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