| 摘要 |
PURPOSE: To provide the min. parts, simple attachment and good reliability by constituting a reinforcing material of long parts of a pulling arm, a spoke and a handle and an element formed from single blocks connected by joint tabs directly formed during casting of a mutually integrated bendable element. CONSTITUTION: Each element 1 has a shape of a single casting having several parts corresponding to a pulling arm 2, a spoke 3 and the long part 4 on a handle. These different parts are mutually connected by bendable bonded tubs 5, 6 provided between one end part of the pulling arm 2 and the spoke 3 within an almost central region and between one end part of the spoke and one end part of the long part 4 of the handle. The reinforcing material elements 1 are held to a state assembled by strongly connecting handle parts in a long direction but this strong connection is obtained by bonding, welding or hooping. |
