| 摘要 |
The present invention relates to a tensioner for endless driving elements, such as chains, belts etc., comprising a tensioning piston provided with locking means, and a locking piston which is implemented such that it is adapted to be engaged with and disengaged from said locking means so as to arrest or release the movement of said tensioning piston, said locking piston comprising an operating section causing said locking piston to move to the arresting position and to the release position, and a locking area used for engagement with said locking means of the tensioning piston and arranged separately from said operating section.
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