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Patent Searching and Data


Title:
草刈機
Document Type and Number:
Japanese Patent JP6687971
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a grass mower of an arm connection type having a configuration hardly damaging a tractor or the grass mower when a grass mowing work part or a boom collides with an obstacle in grass mowing work.SOLUTION: A main frame 2 including a mounting part 20 to be mounted to a tractor includes a mast frame 22 being rotatable in a front/rear direction with respect to the main frame 2. The mast frame 22 includes: a first boom 30; a second boom 32; and a grass mowing work part 4 arranged on a rotation end side of the second boom 32. The grass mower includes stopper means 6 fixing rotation of the mast frame 22 with respect to the main frame 2. The stopper means 6 releases fixing when rotation force equal to or larger than a predetermined value acts in the rotation direction of the mast frame 22.SELECTED DRAWING: Figure 5

Inventors:
Tomoyuki Nagahata
Application Number:
JP2015159277A
Publication Date:
April 28, 2020
Filing Date:
August 12, 2015
Export Citation:
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Assignee:
Sasaki Corporation
International Classes:
A01D34/43; A01D34/64; A01D34/86
Domestic Patent References:
JP54117725U
JP5023805U
JP57183816U
JP3806465B2
Foreign References:
US20020174638