FIELD: household goods and personal effects.
SUBSTANCE: helmet contains the first part and the second part, adjacent to the first one. The helmet parts are connected to each other with a capability of sliding relative to each other along the first axis in order to define the variable volume pocket. The helmet stipulates for fastening element, installed in the first part. The fastening element is made with a capability of sliding between open and closed positions, and with a capability to slide along the second axis in the plane, which is parallel to the one of the position. The first and second axes are not parallel to each other. The second part of the helmet is equipped with delimiter, which is an answering part for the fastening element. The fastening element and delimiter interact in order to prevent movement of the helmet's first part relative to the second part, when the fastening element is in the closed position.
EFFECT: convenience of helmet adjustment for head size of the user without additional instruments.
36 cl, 12 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2319265C2 |
