JPH0224726U

JPH0224726U -

Info

Publication number: JPH0224726U
Application number: JP10354988U
Authority: JP
Priority date: 1988-08-03
Filing date: 1988-08-03
Publication date: 1990-02-19
Anticipated expiration: 2003-08-03
Also published as: JPH0617624Y2

Description

[Brief explanation of drawings]

第１図は本発明のエンジン始動安全装置付作業
車の一実施例に係る要部を示す図、第２図は本実
施例の作業車の全体を示す図、第３図は第２図の
操作リンク機構を示す拡大図、第４図は第１図の
方向から見た図、第５図は第１図の方向から
見た図、第６図は第１図のセンサーが組込まれた
牽制機構である電気回路を示す図である。そして
、第７図は他の実施例を示す図である。３１……第１回動部材、３２……リンクバー、
３３……第２回動部材、３４……リンクロツド、
３５……揺動アーム、３８……当接ローラ、３９
……当接アーム（カムアーム）、４１……バネ、
４２……接触センサー、４４……調節手段（偏心
軸）。 FIG. 1 is a diagram showing essential parts of an embodiment of a working vehicle with an engine starting safety device of the present invention, FIG. 2 is a diagram showing the entire working vehicle of this embodiment, and FIG. 3 is a diagram similar to that of FIG. An enlarged view showing the operation link mechanism, Figure 4 is a view seen from the direction of Figure 1, Figure 5 is a view seen from the direction of Figure 1, and Figure 6 is a check with the sensor in Figure 1 incorporated. It is a diagram showing an electric circuit that is a mechanism. FIG. 7 is a diagram showing another embodiment. 31...first rotating member, 32...link bar,
33...Second rotating member, 34...Link rod,
35... Swing arm, 38... Contact roller, 39
...Abutting arm (cam arm), 41...Spring,
42... Contact sensor, 44... Adjustment means (eccentric shaft).

Claims

[Scope of Claim for Utility Model Registration] An operating link mechanism that rotates the operating shaft of a hydraulic continuously variable transmission to create at least forward, neutral, and reverse rotating position states, and a link member constituting the operating link mechanism that is in a neutral position. A working vehicle has a sensor that detects whether the vehicle is in the neutral position, and a check mechanism that allows the engine to start only when the sensor detects the neutral position. , a contact arm that rotates while contacting the swing arm, a contact roller provided on either one of the swing arm and the contact arm, and a contact roller provided on the other hand when the contact roller is in a neutral position; A cam groove that contacts, a spring that biases the contact arm in the contact direction, a contact sensor that is provided near the cam groove as the sensor and detects the neutral position by contacting the contact roller, and rotation of the contact arm. A work vehicle equipped with an engine starting safety device, which is equipped with an adjustment means for adjusting the center of motion.