| 摘要 |
The present invention is related to an automatic tensioning device for parking brakes comprising a support (20,40), a first regulating element (11), and a second regulating element (30) movable with respect to the support (20,40) between a rest position and a block position. The second regulating element (30) comprises an inner thread (34), a first stop surface (37) for contacting the support (20,40), and at least one stop (38) for contacting the support (20,40) and/or the first regulating element (11). In the rest position, the first regulating element (11) is moved with respect to the second regulating element (30) by means of rotation of the second regulating element (30) when the first stop surface (37) contacts a first stop surface (42) of the support (20,40). In the block position, the stop (38) blocks the rotation with respect to the first regulating element (11). The present invention is also related to a parking brake with the automatic tensioning device.
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