| 摘要 |
<p>A cam operated clamp (18) comprising first and second clamp parts (22 and 26) and a pivot pin. (40) attached to the first part (22). The said second part (26) is located between portions of the said first part (22) and the pivot pin (40). A cam (48) is pivotable about the pivot pin (40) such that the thickness of that part of the cam (48) which for the time being is between the said pivot pin (40) and the said second part (26) can be varied by pivoting the cam (48) about the pivot pin (40). As a result the said second part (26) is moveable towards and away from the said portions of the said first part (22) for at least one position of the cam (48). The clamp (18) is adjustable to adjust the distance between the said portions of the said first part (22) and the pivot pin (40).</p> |
