| 摘要 |
The invention relates to a traction transmitting securing device comprising a bolt element and a safety element which surrounds said bolt element. A number of projections and recesses distanced from each other in the direction of the axis engage with each other in a positive fit inside a contact zone E. The projections and the recesses are pressed against each other and a certain amount of axial slack arises. The aim of the invention is to reduce maximum tension points in the bolt element, when traction reaches a maximum high, whereby the first two or three projections and recesses as seen in the direction of traction engage with each other in the contact zone E. In order to solve this problem, the amount of axial slack along the length of the contact zone E increases in the axial direction corresponding to the traction load of the bolt element.
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