JPS6235300Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, a combine harvester in which the starting end of the pincer rail is tilted upward to separate it from the feed chain, and the grain culm harvested by hand on a headland, etc., is manually fed to the separated part. After finishing the handling work, the reaping operation may be restarted without remembering to reset the pinch rail, and in such a case, the transported grain culms may fall or become clogged.

The purpose of the present invention is to improve the above-mentioned drawbacks, and the present invention is to install a feed chain along the handling opening of the threshing device, to set a pinch rail on the upper surface of the feed chain, and to connect the starting end of the feed chain to the top surface of the feed chain. In a combine harvester in which the section is separated from the feed chain so as to be in a handling position, a preprocessing switch that detects the operation of the preprocessing part is installed in the alarm circuit, and a starting end of the pinching rail is placed in the handling position. This feature is characterized by the fact that a manually operated switch is inserted in series.

The embodiment shown in the drawings will be explained below.1
is a threshing device mounted on one side of a machine base having a traveling device, and in front of it are a reaping device 2, an ear conveyor 3, and a grain head that tilts toward the culm of the grain to be conveyed. A pre-processing section is provided, which consists of a grain conveying device which is also equipped with a handling depth adjuster 4 that clamps and conveys the grain. A section 7 and an engine 8 are provided, and a cutter 9 and a dropper 10 are attached to the rear part.

Further, a pinching rail 12 is provided opposite to the upper surface of the feed chain 11 stretched along the handling opening of the threshing device 1, and the pinching rail 12 is constructed by connecting a large number of rail pieces with pins 13. The vertical support pins 13' supporting these pins 13 are inserted through the support frame 14 and suspended.

The suspension pin 13a on which the rail piece 12a at the front end is suspended is attached to a rotatable collar 15 on the support frame 14.
When the harvested grain culm is continuously conveyed and threshed, the upper retaining pin 16 of the hanging pin 13a is loosely fitted into the long groove 15a of the collar 15, and the rail piece 12a is inserted into the rail piece 12a.
is placed in a lowered position as shown by the solid line in FIG. When placed on the recess 15b of the rail piece 12a
is in an elevated handling position as shown by the chain line.

At this time, the manually operated switch 18 attached to the stay 17 on the support frame 14 is turned ON because its contact piece 18a is pushed up by the upper end of the hanging pin 13a as shown in FIG. 5b.

Furthermore, if a grain culm is held in the chain holding frame 4a of the handling depth adjustment body 4, it will be pushed by the grain culm and turn OFF.
A normally closed handling depth main switch 19 is attached to the transmission case 20 which tiltably supports the handling depth adjustment body 4. When the handling depth adjustment body 4 reaches the shallow handling adjustment limit position, the holding frame is closed. A handling depth lower limit switch 21 is installed, which is turned on when 4a comes into contact with it.

Reference numeral 22 denotes a reaping clutch lever provided on the side of the driver's seat 6, and the reaping clutch lever 22 is located on the lower surface of the guide panel 23 when the reaping clutch lever 22 is set to the engaged position.
A pretreatment switch 24 that is turned on is installed.

Next, to explain the operation, the grain culm harvested by the reaping device 2 is supplied to the starting end of the feed chain 11 and the pinching rail 12 by the grain culm conveying device, and is threshed. At this time, the rail piece 12a is The handling depth adjustment body 4 of the grain culm conveying device is tilted centering on the front part by an automatic control device to adjust the handling depth.

In addition, when handling grain culms that have been harvested by hand on a headland etc. in a fixed position, set the rail piece 12a by pushing it up (handling switch 18 ON) as shown by the chain line in Fig. 4, and set the handling depth adjuster. 4 all the way down (handling depth lower limit switch ON) to move the rear end away from the feed chain 11, and manually feed the grain culm between the rail piece 12a and the feed chain 11 and thresh it.

And an alarm device 2 consisting of a buzzer or lamp, etc.
The circuit No. 5 includes a handling depth lower limit switch 21 and a manual handling switch 18 which are connected in parallel as shown in FIG.
, the handling depth main switch 19 and the pretreatment switch 24 are inserted in series, so when reaping and threshing work is resumed after manual handling work, the rail piece 1
If the user forgets the reset operation of lowering the reaping clutch lever 22 and operates the reaping clutch lever 22, the pretreatment switch 24 is turned on and the alarm 25 issues an alarm.

Further, even if the rail piece 12a is reset but the user forgets to return the handling depth adjuster 4, an alarm is issued.

Furthermore, during normal reaping and threshing work, even if the reaped grain culm is a significantly long culm and the handling depth adjuster 4 adjusts shallow handling and the handling depth lower limit switch 21 is turned ON, the handling depth main switch 19 does not reach the grain culm. Since it detects and turns off, it does not issue an alarm.

As mentioned above, the present invention is such that a feed chain is stretched along the handling opening of the threshing device, a pinching rail is placed opposite to the upper surface of the feed chain, and the starting end of the pinching rail is separated from the feed chain to take a handling position. In such a combine harvester, a pre-processing switch that senses the operation of the pre-processing section and a hand-handling switch that senses that the starting end of the pinching rail is in the hand-handling position are connected in series to the alarm circuit. After inserting the grain, if the pre-processing device is operated with the nipping rail set in the handling position after the handling work is completed, the alarm will sound an alarm and the grain will be transferred from the grain culm conveying device to the feed chain and the starting end of the nipping rail. It is possible to prevent the grain culms from falling off or becoming clogged.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Fig. 1 is a plan view of the combine harvester, Fig. 2 is a perspective view of the grain culm joint, Fig. 3 is a perspective view of the handling depth adjuster, Fig. 4 is a side view of the main parts, Fig. 5 a, b 6 is a perspective view of the handling detection section, FIG. 6 is a perspective view of the reaping clutch lever section, and FIG. 7 is a circuit diagram of the alarm. DESCRIPTION OF SYMBOLS 11...Feed chain, 12...Pinching rail, 12a...Rail piece, 18...Handling switch, 21...Handling depth lower limit switch, 24...Pretreatment switch.

Claims (1)

[Scope of utility model registration request] In a combine harvester in which a feed chain is stretched along the handling opening of the threshing device, a pinching rail is provided opposite to the upper surface of the feed chain, and the starting end of the pinching rail is separated from the feed chain so as to be in a handling position, an alarm is issued. A pre-processing switch that senses the operation of the pre-processing section and a hand-handling switch that senses that the starting end of the pinching rail is in a hand-handling position are inserted in series in the circuit of the device. Handling equipment in combines.