JPS6015611U

JPS6015611U - horizontal sensor

Info

Publication number: JPS6015611U
Application number: JP10702383U
Authority: JP
Inventors: 吉藤　博章
Original assignee: ヤンマー農機株式会社
Priority date: 1983-07-08
Filing date: 1983-07-08
Publication date: 1985-02-02

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 the drawing]

第１図は本考案に係る水平センサを取付けたロータリを
、後部に装置したトラクターの一部破断左側面図、第２
図はその要部平面図、第３図は本考案に係る水平センサ
の内部の模式図、第４図は水平センサの傾倒角度と受光
素子の受光量との関係を示すグラフ、第５図ロータリの
角度制御装置の電気回路を油圧回路と共に示す模式図で
ある。１・・・・・・トラクタ本体、２０−タリ、１０・・・
・・・油圧リフト、１１・・・・・・リフトアーム、２
０・・・・・・トップリンク、２１・・・・・・ロワリ
ンク、２６・・・・・・油圧シリンダ、２８・・・・・
・ピストンロッド、４０・・・・・・光センサ、４１・
・・・・・発光素子、４２・・・・・・受光素子、４３
・・・・・・遮光板、４３ａ・・・・・・スリット、５
７゜５８・・・・・・比較器、６３．６４・・・・・・
ソレノイド、６５・・・・・・電磁弁。Figure 1 is a partially cutaway left side view of a tractor with a rotary equipped with a horizontal sensor according to the present invention installed at the rear;
Figure 3 is a schematic diagram of the interior of the horizontal sensor according to the present invention; Figure 4 is a graph showing the relationship between the tilt angle of the horizontal sensor and the amount of light received by the light receiving element; Figure 5 FIG. 2 is a schematic diagram showing an electric circuit of the angle control device together with a hydraulic circuit. 1...Tractor body, 20-tally, 10...
... Hydraulic lift, 11 ... Lift arm, 2
0...Top link, 21...Lower link, 26...Hydraulic cylinder, 28...
・Piston rod, 40... Optical sensor, 41.
... Light emitting element, 42 ... Light receiving element, 43
... Light shielding plate, 43a ... Slit, 5
7゜58... Comparator, 63.64...
Solenoid, 65... Solenoid valve.

Claims

[Scope of utility model registration request]

A light-shielding plate with a slit whose upper end is pivoted so that it can swing freely so that it is always vertical, and whose opening area changes according to the direction of the swinging force, and a light-shielding plate that is placed oppositely at the height of the slit with the light-shielding plate in between. The light receiving element captures the amount of light from the light emitting element passing through the slit, and the tilt angle of the light emitting element and the light receiving element with respect to the vertical line is detected based on the amount of light. A horizontal sensor characterized by: