TILLING CLAW MOUNTING STRUCTURE

Japanese Patent JP2016093152

A

PROBLEM TO BE SOLVED: To provide a tilling claw mounting structure in which the mounting and dismounting of a tilling claw are made easy, and a fastener for mounting the tilling claw to a flange is hard to be loosened.SOLUTION: A tilling claw mounting structure is configured as follows: a bolt insertion hole is provided substantially in the center of a base part being a portion opposed to the flange of a tilling claw; at least three protrusions are provided toward the flange in the base part; at least one protrusion is provided in a position spaced apart by 2.5 d or more from the bolt insertion hole center of the tilling claw when a bolt shaft radial size of the bolt to be used is assumed d, and in each of n-equally divided areas (n is an integer of 3 or more) centering on the center of the bolt insertion hole of the tilling claw; the bolts are inserted into a flange bolt insertion hole provided in the flange and the bolt insertion hole of the tilling claw, and nuts are threadedly attached; and thereby the tilling claw is mounted to the flange by a pair of bolts and nuts, while having two or more contact surfaces with two or more protrusions coming into contact with the flange.SELECTED DRAWING: Figure 2

YAMADA TORU

JP2014232338A

May 26, 2016

November 17, 2014

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YAMADA TORU

A01B33/14

Kazuyoshi Tsujimoto
Nozomi Tsujimoto
Minako Kanazawa

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