| 摘要 |
A tensioning and winding device for lashing straps comprises a drive motor, and a wind-up spindle driven by the motor for winding up a lashing strap. The lashing strap has a flat side, and the device includes a measurement sensor means for measuring tension in the lashing strap. The sensor means comprises a sensor tongue abutting against the flat side of said lashing strap, and two projections which between them guide and laterally flank the sensor tongue. The projections include end faces which abut against the flat side of the lashing strap and together with the sensor tongue define a three-point measuring element. That measuring element bends the lashing strap through a slope angle as defined by three points of tangency where the lashing strap makes contact with the end faces and the sensor tongue disposed therebetween, whereby the sensor tongue abuts against the lashing strap and exerts a deflection pressure against it; the sensor means measuring the deflection pressure exerted by the sensor tongue on the lashing strap as a measured value of the tension in the lashing strap. Means are provided for transmitting the measured value as an actual value to a control circuit for turning on the drive motor of the wind-up spindle so as to maintain a desired lashing tension.
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