JPS63191119U - - Google Patents

Description

[Brief explanation of the drawing]

The drawings show an embodiment of the device of the present invention, and FIG. 1 is an assembled perspective view of the hydraulic valve operating system showing the main parts of the device;
Fig. 2 is a perspective view showing how the device of the present invention is assembled to a combine harvester, Fig. 3 is an overall side view of the pre-processing section lowering setting device, and Fig. 4 is an overall side view showing the oil drainage structure of the gear case of the combine. 5 and 5 are partially enlarged sectional views showing the oil drainage structure, and FIGS. 6 and 7 are front views of essential parts showing other examples of the oil drainage structure. 1: Airframe, 2: Pre-processing section, 9: Operation lever, 1
2: Rotating arm, 21: Spring.

Claims (1)

[Scope of utility model registration request] The swinging of the operating lever 9 interlocks the swinging arm 12 for valve operation to swing the preprocessing section 2 up and down with respect to the machine body 1, and the swinging of the preprocessing section 2 is controlled by the swinging arm 25. 12, the preprocessing section 2 is stopped at the lowered setting position, and when the operating lever 9 is operated in the direction of "lowering" the preprocessing section, a biasing effect is provided between the operating lever 9 and the rotating arm 12. A pre-processing section operating device for a combine harvester, which is provided with a spring 21 for operating a rotating arm 12.