JPS5818409U

JPS5818409U - Automatic plowing depth control device release device

Info

Publication number: JPS5818409U
Application number: JP11410781U
Authority: JP
Inventors: 田中　幹宏
Original assignee: 三菱農機株式会社
Priority date: 1981-07-31
Filing date: 1981-07-31
Publication date: 1983-02-04
Also published as: JPS6327531Y2

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図は本考案が適用されているトラクタ後部を示す側
面図、第２図はその畦ぎわ作業を示す側面図、第３図は
その自動耕深制御装置の解除装置を示す斜視図、第４図
はその自動耕深制御が作動している状態を示す側面図、
第５図は自動耕深制御が解除された状態を示す側面図、
第６図は自動耕深制御に自動的に復帰する状態を示す側
面図である。１・・・トラクタ、７・・・作業機、１２・・田−タリ
、１３・・・センサー（リヤカバー）、２０・・・リン
ク、２３・・・軸、２５・・・レバー、２６・・・カム
、２６ｂ・・・保持面、２６Ｃ・・・凹部、２７・・・
クレビス、２７ａ・・・長孔、３０・・・油圧制御アー
ム、３１・・・トグルスプリング、３２・・・ピン。１、　　　　　　　第１図第５図Fig. 1 is a side view showing the rear of the tractor to which the present invention is applied, Fig. 2 is a side view showing the ridge work, Fig. 3 is a perspective view showing the release device of the automatic plowing depth control device, Figure 4 is a side view showing the automatic plowing depth control in operation.
Figure 5 is a side view showing a state in which automatic plowing depth control is released;
FIG. 6 is a side view showing a state in which automatic plowing depth control is automatically returned. DESCRIPTION OF SYMBOLS 1...Tractor, 7...Work equipment, 12...Tari, 13...Sensor (rear cover), 20...Link, 23...Shaft, 25...Lever, 26... -Cam, 26b...holding surface, 26C...recess, 27...
Clevis, 27a... Long hole, 30... Hydraulic control arm, 31... Toggle spring, 32... Pin. 1. Figure 1 Figure 5

Claims

[Scope of utility model registration request]

(1) Automatic plowing depth control device that detects the height of the work equipment above the ground using a sensor, transmits the amount of movement of the sensor to the hydraulic control arm via a link, and controls the work equipment to move up and down to maintain a constant plowing depth. The link and the hydraulic control arm are connected via a clevis having an elongated hole, and a holding surface is provided on the shaft that is fitted into the elongated hole and is pivotally supported by the link, and that can hold the shaft at the end of the elongated hole. A lever is fixed to a cam that has a recess that allows the shaft to slide freely along a long hole, and a toggle spring is tensioned between the lever and the link, so that when the sensor rises by a predetermined amount, the cam is held. A release device for an automatic plowing depth control device configured to switch the urging force direction of a toggle spring in a direction in which a pin is held on a surface.

(2) Utility model registration claim 1 in which the sensor is constituted by a rotary roller cover that also serves as a leveler.
A release device for the automatic plowing depth control device described in Section 1.