FIELD: items for personal use.
SUBSTANCE: strap comprises a tensioning device and a portion including marks arranged along at least part of its length. During use, the area containing the signs passes through the tensioner. The tensioning device comprises a frame forming a window in which at least one of said symbols is visible in the portion of the strap. The sign represents for the owner/user the amount of tension in the strap, so as to ensure reproduction of the specified tension. There is also a version of the strap and glasses or a swimming mask containing a strap.
EFFECT: head strap is correctly adjusted by reliably and accurately measuring the tension of the strap.
31 cl, 14 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| STRAP | 2012 |
|
RU2601939C2 |
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|
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|
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| SAFETY GOGGLES | 2012 |
|
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|
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| WRIST WATCH | 2017 |
|
RU2664742C1 |
| LASHING STRAP FOR ATTACHMENT TO LOOP OF PROTECTIVE CLOTHES MADE OF GRID CONSISTING OF METAL RINGS AND PROTECTIVE CLOTHES | 2012 |
|
RU2603125C2 |
| HARDHAT | 2013 |
|
RU2594556C1 |
| WRIST WATCH | 2017 |
|
RU2664741C1 |
| PROTECTIVE GLASSES, SYSTEM AND METHOD FOR PROVIDING FEEDBACK | 2011 |
|
RU2584132C2 |
