JPH0163312U - - Google Patents

Description

[Brief explanation of the drawing]

The drawings show an embodiment of the elevating and lowering control device for the working part of the rice paddy work machine according to the present invention, in which Fig. 1 is an overall side view of the walking rice transplanter with the bonnet removed, and Fig. 2 is an overall side view of the walking rice transplanter with the bonnet removed. 3 is a side view of the elevation control cylinder section, FIG. 4 is a plan view of the elevation control cylinder section, FIG. 5 is a side view of the elevation control mechanism, FIG. 6 is an explanatory diagram of the operation of the transmission clutch lever, and FIG. The figure is a connection diagram of the transmission clutch lever, Figures 8 J and K are a front view and sectional view of the first cam arm on the traveling side, and Figures 9 J and K are a front view, sectional view, and sectional view of the second cam arm on the traveling side. Figures 10 J and K are a front view and sectional view of the first cam arm on the planting side, and Figures 11 J and K are a front view and sectional view of the second cam arm on the planting side, and the first cam arm.
2. Figures J and K are the front view and cross-sectional view of the third cam arm, and the first
3 is a front view of the operating handle, FIG. 14 is a partially cutaway side view of the front, FIG. 15 is a plan sectional view of the main part of the front, and FIG. 16 is a bottom sectional view of the main part of the front. Figure 17 is a rear view of the rice transplanter, Figure 18 is an explanatory diagram showing the movement of the cam arm when the traveling clutch lever is operated, and Figure 19 is a diagram showing the movement of the cam arm when switching to the reverse mode. FIG. 20 is an explanatory diagram showing the movement of the cam arm when the planting clutch lever is operated, and FIG. 21 is an explanatory diagram showing the operation positions of the traveling clutch lever and the planting clutch lever. . In the figure, 1 is a traveling aircraft body, 5 is a traveling wheel, 9 is a sensing float, 13 is a lift control valve, 16 is an operating plate, 17 and 18 are connecting links, 24 is a gear shift clutch lever, 30 is a traveling clutch lever, and 31 is a Planting clutch lever, 32, 33 are first cam arms, 3
6 and 37 are hydraulic wires, 38 and 39 are first cam arms, and 42 is a third cam arm.

Claims (1)

[Scope of utility model registration request] In a paddy field working machine in which the vertical movement of the machine body is performed by automatic switching of a vertical movement control valve linked to the vertical movement of a sensing float, the operating tool means for restricting the automatic switching of the vertical movement control valve includes: , a check means is provided which is connected to a speed change clutch switching means for switching the aircraft forward and backward, and which restrains the elevation control valve from switching to the aircraft raised state when the speed change clutch switching means is switched to the reverse state; The check means is provided with a holding release mechanism that releases the operating position of the operating tool means upon switching to the reverse state and displaces the operating tool means to a position that limits switching of the valve to the aircraft raised state. A lifting control device for a working part of a paddy field working machine, characterized in that: