| 摘要 |
A dual mode tape rule blade arrestor structure that provides for an effective increase in tape rule rewind buffering to prevent excessive blade retrieval speeds that generate high impact sheering forces. The arrestor button of the present invention is pressed upward to temporarily halt tape rule rewinding, but can at the same time also be pressed downward and locked into the full constraint position. As such, the improved structure of the invention herein enhances tape rule service life as well as operating safety.
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