JPS5853519U

JPS5853519U - Obstacle avoidance mechanism in grass cutting equipment

Info

Publication number: JPS5853519U
Application number: JP14893581U
Authority: JP
Inventors: 伸一岩田
Original assignee: 株式会社日本除雪機製作所
Priority date: 1981-10-06
Filing date: 1981-10-06
Publication date: 1983-04-12
Also published as: JPS6129219Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本考案の１実施例を示すもので、第１図は本考案
の正面図、第２図は要部拡大斜視図、第３図は油圧回路
図、第４図はモア装置を中心にした側面図である。１・・・・・・草刈装置における障害物回避機構、６・
・・二・モア装置、７・・・・・・第１油圧シリンダー
、１３゜１３′・・・・・・リリ′−フバルブ、１３Ａ
、１３Ａ’　・・・・・・ダンク、１４．１４’・・・
・・・チェックバルブ、１５．１５’・・・・・・コン
トロールバルブ、１６゜１６′・・・・・・電磁弁、１
７・・・・・・メインリリーフバルブ。The drawings show one embodiment of the present invention; Fig. 1 is a front view of the invention, Fig. 2 is an enlarged perspective view of the main parts, Fig. 3 is a hydraulic circuit diagram, and Fig. 4 mainly shows the mower device. FIG. 1...Obstacle avoidance mechanism in grass cutting device, 6.
2. Mower device, 7... First hydraulic cylinder, 13° 13'... Relief valve, 13A
, 13A'...Dunk, 14.14'...
...Check valve, 15.15'...Control valve, 16゜16'...Solenoid valve, 1
7... Main relief valve.

Claims

[Scope of utility model registration request]

A second arm 3, which swings around the first arm 3, is attached to the upper end of a first arm 3, which is provided on the side of the movable pedestal 2 so as to be able to rise and fall freely in a direction perpendicular to the direction of movement of the pedestal 2.
An arm 4 is pivotally connected to the outer end 4A of the second arm 4, and a third arm 5 that swings around the outer end 4A is pivotally mounted, and the third arm 5 is located at approximately the center position. The upper and lower parts 5A and 5B are in a direction perpendicular to the longitudinal direction of the third arm 5.
The lower part 5B is connected to the upper part 5A so as to be able to bend in a direction opposite to the direction of movement of the pedestal 2,
A mower device 6 is connected to the lower end of the lower portion 5B, and a first hydraulic cylinder 7 is connected to the pedestal 2 and the first arm i-1, and a first hydraulic cylinder 7 is connected between the pedestal 2 and the first arm i-1, and between the 17-, arm 3 and the second arm 4. A second hydraulic cylinder 7A is disposed in the mower, and third and fourth hydraulic cylinders 8.9 are disposed between the second arm 4 and the third arm 5 and between the third arm 5 and the mower device 6. At the same time, a fifth hydraulic cylinder 10 is installed between the upper and lower parts 5A and 5B of the third arm 5, and the first hydraulic cylinder 7 or the second hydraulic cylinder 7A is used to raise the mower device 6 from the ground. When this occurs, the mower device 6 is configured to contract in response to an external load and rise together with the other arms until the load is no longer applied, and the fifth hydraulic cylinder 10 is configured to compress the mower device 6 from the direction of movement. In a grass cutting device characterized in that when a pressing force is generated, the mower device 6 shrinks in response to an external load and rotates backwards together with the lower portion 5B of the third arm 5 until the load is no longer applied. Obstacle habit mechanism.