JPS5921952Y2 - mobile agricultural machinery - Google Patents

Description

[Detailed Description of the Invention] In general, in a mobile agricultural machine, it is necessary to put the braking device in the braking state when the latch is engaged for running, and to put the braking device in the braking state when the latch is off for running.

If the operation of the latch for running and the operation of the braking device are performed independently using separate operating tools, not only will the operations be troublesome, but the user may forget the required operations and remain in the braking state. There is a risk that if the latch that allows the vehicle to run is in the engaged state, causing the engine to stop, or if the latch that allows the vehicle to run without applying braking is disconnected, the aircraft may start moving unexpectedly, such as when stopping on a slope.

For this reason, a so-called clutch-brake structure has been devised, in which the latch for running is cut off by the first stage operation of a single operating tool, and the braking device is operated by the subsequent second stage operation, but even in this structure, In order to reliably stop the aircraft, it is necessary to perform the second stage operation manually, so if the second stage operation is delayed, such as on a slope, there is a problem that the aircraft will unexpectedly shift its own weight significantly.

As described above, the present invention allows operating the traveling device and the braking device with one operating tool by improving the mounting structure of the operating tool and improving the linkage structure between this operating tool and the running latch and the braking device. This is intended to enable the necessary linked operations to be carried out more reliably.

Hereinafter, embodiments of the present invention will be described based on drawings.

The figure shows a harvester that handles and threshes manually fed stem culms while pinching and conveying them with the feed chain 2 of the threshing device 1 mounted on the front of the machine. A bagging section is provided for storing treated and threshed grains sent through a conveying tube 3 into a storage bag 4.

Further, this harvester 1 has rollers 5, 5 that run downward.
As shown in FIG. 2, the output of the mounted engine 6 is transmitted to the transmission case 8 for driving via the transmission belt 7, and the required speed change is performed within the transmission case 8. The output power is transmitted from the lower axle 9 to the running rollers 5.5.

A tension pulley 10b pivotally supported at the free end of a swinging arm 10a is provided opposite the transmission belt 7, and the movement of the tension pulley 10b toward and away from the swing arm 10b applies power to the running rollers 5, 5. A running latch 10 of a belt tension type is provided to intermittent transmission.

Inside the traveling mission case 8 is a so-called shoe brake type braking device 1 that brakes the progress of the aircraft by bringing a sliding contact piece into contact with a rotating drum that is interlocked with the axle 9.
1 is installed inside, and the operating arm 11 of this braking device
a is pivotally attached to the upper part of the mission case 8.

Next, the operation structure of the latch 10 and the braking device 11 for running will be explained.

That is, a bifurcated control handle 12 extends rearward from the intermediate portion of the fuselage (see FIG. 3), and a movable shaft 13 is pivotally supported on this control handle 12.

An arm 14 is fixed to the middle part of this rotation shaft 13,
This arm 14 and the swinging arm 10a are connected to the rod 1
They are interlocked and connected via 5.

Further, another arm 16 is fixed to one end of the rotating shaft 13, and this arm 16 and the operating arm 11a are interlocked and connected via a rod 17.

Furthermore, a pair of left and right operating tools 18 a and 18 b are fixedly provided at both ends of the rotation shaft 13 .

Then, in the first state in which these operating tools 18a or 18b are swung forward of the aircraft, the running latch 10 is operated to the engaged state, and the braking device 11 is operated to the brake release state. At the same time, the operating tool 1
In the second operating state in which the motors 8 a and 18 b are swung backwards, the running latch 10 is operated to the OFF state, and the braking device 11 is operated to the braking state.

Further, another arm 19 is fixed to one end of the rotation shaft 13, and a spring 20 is interposed between this arm 19 and the control handle 12.

Then, the operating tool 1 is
8 a and 18 b are configured to be stably switched and maintained between a first operating state and a second operating state, and the biasing force of the spring 20 presses the tension pulley 10 b against the belt 7 in the first operating state. The spring 2 is used as an operating force, and in the second operating state, the spring 2
The structure is such that a biasing force of 0 is used as an operating force for the braking device 11.

In the embodiment, two operating tools 18 are provided on the rotation shaft 13.
A and 18 b are fixedly installed to operate the latch 10 and the braking device 11 running from both sides of the fuselage. Good too.

In addition, in the embodiment, a belt tension type latch 10 is illustrated as the running latch 10, and the belt 7 of this clutch 10 is
Although the biasing force of the spring 20 is used as the biasing force of the tension pulley 10b that presses the It is only necessary to maintain the operating tools 18a and 18b in the first operating state.

5. It goes without saying that the braking device 11 is not limited to a shoe brake type, but can also be applied to a multi-plate type.

In summary, the mobile agricultural machine according to the present invention includes the operating tool 18a,
18b is configured to be stably switched and maintained between the first operation state and the second operation state by the biasing force of the spring 20, and the operating tools 18a and 18b include a latch 10 that moves and a device that brakes the progress of the aircraft. are configured to operate the running latch 10 in the applied state and the braking device to the brake release state in the first operating state, and to operate the running latch 10 in the off state in the second operating state. and arranging to operate the braking device to a braking state,
Moreover, in this second operation state, the spring 20
The biasing force is also used as the operating force of the braking device.

That is, by switching the operating tools 18 a and 18 b between the first operating state and the second operating state, the important operation of the latch 10 for running and the switching operation of the braking device 11 to the brake release state and the braking state are performed. This can be done all at once, and all that is required is to operate the operating tools 18a, 18b to a position beyond the dead center of unstable switching, and the latch 10 and braking device 11 can be quickly activated with a simple operation. The spring 20 can be operated reliably and in the second operating state.
The biasing force is also used as the operating force of the braking device 11, resulting in an inexpensive structure due to the dual use of the members.

[Brief explanation of the drawing]

The drawings show an embodiment of the mobile agricultural machine according to the present invention, in which Fig. 1 is a side view of the harvester, Fig. 2 is a side view showing the connection between the running latch, the braking device, and the operating tool, and Fig. 3 is the operation tool. FIG. 3 is a perspective view showing a tool mounting section. 10...Latch for running, 18a, 18b...
...Operation tool, 20...Spring.

Claims (1)

[Scope of utility model registration request] The operating tools 18a, 18b are configured to be stably switched and held between the first operating state and the second operating state by the biasing force of a spring 20, and the operating tools 18a, 18b are provided with a latch 10 that moves and a mechanism that controls the movement of the aircraft. Simultaneously linked with the braking device,
In the first operation state, the latch 10 for running is turned on and the control device is put in a brake release state, and in the second operation state, the latch 10 for running is turned off and the brake is released. A mobile agricultural machine characterized in that the device is configured to be operated in a braking state, and in this second operating state, the biasing force of the spring 20 is used also as the operating force of the braking device.