| 摘要 |
1. Borer head with mechanical bore protrusion adjustment comprising of a body connected with a replaceable grip and a saddle to which a borer head is attached, characterised in that it has a screw lever gear for adjusting bore protrusion, which is comprised of a lever (14) seated in the body (1) along its axis, its one end being put through a self-aligning nut (13) on the lead screw (12) of the ratchet-wheel (11) cooperating with the peg (10) of the control ring (9), and the other end rotating on a pin (15), that end being equipped with a spherical pivot (16) placed in the socket of the nut (17) cooperating with the screw (18) seated in the saddle (5).<IMAGE>
|
