JPH0163311U - - 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, FIG. 5 is a side view of the elevation control mechanism, FIG. 6 is an explanatory diagram of the operation of the main transmission clutch lever, Figure 7 is a connection diagram of the main 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 Figure 9 J and K are a front view and sectional view of the second cam arm. , Figure 10J,
K is a front view and a sectional view of the first cam arm on the planting side;
Figures J and K are front views and cross-sectional views of the second cam arm,
Figures 12 J and K are front views and cross-sectional views of the third cam arm;
Fig. 13 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. , Fig. 17 is a rear view of the rice transplanter, Fig. 18 is an explanatory diagram showing the movement of the cam arm when the travel clutch lever is operated, and Fig. 19 is a diagram showing the movement of the cam arm when switching to the reverse mode. Action explanatory diagram shown, No. 20
FIG. 21 is an explanatory view showing the movement of the cam arm when the planting clutch lever is operated, and FIG. 21 is an explanatory view 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 main transmission clutch lever, 30 is a traveling clutch lever, 31 is the planting clutch lever, 32 and 33 are the first cam arms,
36 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 lifting control valve linked to the vertical movement of a sensing float, operating tool means operated to limit the automatic switching of the lifting control valve is provided. , the operating position of the operating tool means is changed by swinging the first cam arm connected to the elevation control valve side in a direction opposite to the direction in which the operating force for automatically switching the elevation control valve acts on the first cam arm. By operating the operating tool means to the valve switching restriction position, the locking body provided on one cam arm is applied to the locking receiver provided on the other cam arm with the said operating force. 1. An elevation control device for a paddy field working machine, characterized in that the device is configured to abut and lock in the direction of action of the operating tool to prevent the operating tool means from being removed from the valve switching restriction position due to the operating force.