| 摘要 |
<p>A coupling between the piston and cylinder controlling and actuating member and the bending head of a portable pipe bending machine comprising a collar (5) made up of two half collars (5', 5'') with concavities complementary with the side wall of the cylinder (3), which are removably jointed (6, 6') to each other to clamp the cylinder, one of them (5') being rigidly joined (6, 6') to the bending head (1), a coupling which eventually further comprises means for avoiding axial displacement of the collar (5) upon the cylinder (3), particularly a groove (9', 9'') on the collar and a complementary ridge (9) on the cylinder (3). <IMAGE></p> |
