| 摘要 |
The line roller 23 is rotatably supported on the supporting portion 17 of a supporting member 11 through bearings 25, 27. The bearings are interposed between an inner periphery of the line roller and the supporting portion of a supporting member, arranged in parallel in the axial direction, and are separately disposed each other. The opposite ends of the bearings are in contact with stopping portions in the inner periphery of the line roller. The bearing 25 has an outer end being in contact with a stopper 33 of the support member through a first seal member 31, while the bearing 27 has an outer end being in contact with a stopper 37 of the support member through a second seal member 35. The first and second sealing members are supported as being held between the bearings and the stoppers respectively.
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