| 摘要 |
The rail (2), the connecting part (8,9) and the spring component (6,7) are firmly connected with one another. They are all made of plastic and are connected to one another in one piece. The spring component has a lever arm (h) parallel to the running direction of the chain (1), which extends from the locator (10) of the spring component to the connecting part as far as the force introduction point in which a chain force is effectively applied crossways to the running direction of the chain.
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