| 摘要 |
The bush trimmer is designed for decorative trimming of bushes in the maintenance of parks and gardens. It consists of a common housing (1) having an electric motor (2) fitted in it. Under a breaker (3) a locking pin (5) is fitted which has the facility of entering a split of a fixing plate (25) fitted in the upper part of a revolving body (7). On it a gear (8) is fitted in the cut-out of its upper side of which a disc spring (21) and upper pulley (22) are fitted. In body (7), a lower cylindrical section (11) and upper conical section (12) are machined. In the latter a truncated cone (13) is fitted on the base of which upper unilaterally inclined teeth (14) are machined which are meshed to lower unilaterally inclined teeth (15), machined on the upper front surface of a cylindrical body (16), also housed in body (7). Inside the truncated cone (13) and the cylindrical body (16) a pressing spring (19) is fitted housed in coaxial cylindrical cavities (18). Under the revolving body (7) an eccentric group (9) is fitted, fixed to body (16) by means of a pin (10). 2 claims, 2 figures
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