ATTACHMENT STRUCTURE OF DEEP PLOWING WORKING MACHINE AND CRUSHING SOIL AND LEVELLING ROLLER DEVICE, IN CULTIVATOR UNIT AND ATTACHMENT DEVICE USED FOR THIS STRUCTURE

摘要

PPROBLEM TO BE SOLVED: To provide a cultivator unit with a structure in which a crushing soil and levelling roller device located in the back undergoes no impact when a safety bolt of a deep plowing working machine is broken. PSOLUTION: In the cultivator unit 3 having a middle bone beam 5 where a shank 10 of the deep plowing working machine 8 is attached and the crushing soil and levelling roller device 9 attached in the back of an attachment part of the deep plowing working machine 8, the shank 10 of the deep plowing working machine in the front or a chuck member 11 supporting the shank 10 is supported by the middle bone beam 5 via a pivot supporting bolt 12 and the safety bolt 13. A base bracket which supports the crushing soil and levelling roller device 9 toward the back via an integrally coupling means is pivotally attached to the middle bone beam 5 via the pivot supporting bolt 12 in a manner to rotate. A linkage member which is integrally displaced by engaging the shank 10 of the deep plowing working machine or the chuck member 11 attached by the pivot supporting bolt 12 and the safety bolt 13 is coupled to the base bracket integrally or in a manner to interlock. PCOPYRIGHT: (C)2011,JPO&INPIT