FIELD: transport.
SUBSTANCE: invention relates to automotive chain tension variators. Proposed method consists in the chain is varied by rod (2) arranged in tensioner case (1). Rod (2) is driven by working spring (4) via slider (3). Slider (3) is equipped with wear indicator to define chain stretching degree. Rod (2) with lengthwise recess (12) and slider (3) are fitted in central bore (6) of chain tensioner. Said recess has multiple teeth (13). Turn pawl (5) is arranged in case (1) to interact with rod (2) teeth (13). One of case (1) ends has ledge (7) to decrease central bore diameter. Slider (3) interacts with central bore (6) via circular ledge (8). Working spring (4) is arranged at slider (3) between case (1) ledge (7), circular ledge (8) of slider (3) to displace slider therein. Slider (3) is equipped with wear indicator (9) shaped to slider (3) end extending beyond said case (1).
EFFECT: possibility to determine the chain tension.
7 cl, 2 dwg
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