JPH0135135Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a reaping machine in which the direction in which the harvested grain culm is released can be freely selected from both the left and right sides of the machine body.

In this type of left and right discharge type reaping machine, left and right conveying devices are installed behind the reaping device in the left and right direction, and the conveying direction can be freely selected from both the left and right directions. By changing this, the direction of release of the harvested grain culm is changed as appropriate.

The present invention aims to automatically change the above-mentioned conveyance direction by detecting uncut culms in the field.

The present invention provides a switching device for automatically switching the conveying direction of the left and right conveying devices by the operation of a sensor for detecting whether or not uncut culms are present in the field on the opposite side of the grain culm release direction. is installed, and when there are uncut grain culms in the field on the left side (right side) of the machine during reaping work, the harvested grain culms are discharged to the field on the right side (left side) of the machine.

The following will explain the embodiments shown in the drawings.

Figures 1 and 2 are a plan view and a side view showing a part of the reaping machine, and 1 and 1' are the reaping frame;
Reference numerals 2 and 2' denote weeding bodies, 3 and 3' a moving device, 4 a reaping device, 5 a conveying plate, 6 both left and right conveying devices, and 7 a travel drive unit.

The left sensor 11 is pivoted to the left reaping frame 1 8
Then, the right sensor 12 is pivotally supported 9 on the right reaping frame 1'.

FIG. 3 shows a switching device A for both the left and right transport devices 6, in which the drive shafts 13 of the left and right transport devices 6 are mounted on a bevel case 10, and the drive shafts 13 of the left and right transport devices 6 are
The input shaft 14 is mounted perpendicularly to the input shaft 3. Inside the bevel case 10, there is a drive bevel gear 15 fixed to the end of the drive shaft 13, a pair of driven bevel gears 16, 17 loosely fitted to the input shaft 14, and a drive bevel gear located between the driven bevel gears 16, 17. A clutch body 18 that engages with the shaft 13 by spline is installed inside. A fork groove 19 is formed in the center of the clutch body 18, and clutch pawls 18a, 18b are formed on both sides, and when the fork 20 is moved, it moves to either side of the driven bevel gears 16, 17 to engage the clutch pawls. 18a, 18b are driven bevel gears 16, 1
7, and is configured to transmit power between the drive shaft 13 and input shaft 14 in order to rotate the drive shaft 13 in the forward or reverse direction. In FIG. 3, 30 is an input pulley; in FIGS. 1 and 2, 21a is an upper drive sprocket, 21b is a lower drive sprocket, 22a is an upper conveyor belt, and 22b is a lower conveyor belt.

The left sensor 11 is in an operating state with the drive unit 11b in the forward position A at a position where the operating unit 11a contacts two or more standing grain culms (uncut culms) B in the field,
In the case of contact with one plant or no contact (already cut land with no standing grain culms), the presence or absence of uncut culms is detected by setting the rear position B to a non-operating state. Note that the detection operation of the right sensor 12 is similar to that of the left sensor 11 described above.

Next, a transmission mechanism between the sensors 11 and 12 and the fork 20 of the forward/reverse mechanism will be explained.

Pivot 23 the fork 20 in place, and
As shown in FIG.
L arms 25, 25' whose intermediate parts are pivoted at appropriate positions on the fuselage 24, 24', first connecting rods 26, 26', and second
The left sensor 1
In the operating state 1 [the A position of the drive unit 11b], the drive arm 20a of the fork 20 is in the C position, and the left sensor 11 is in the non-operating state [the B position of the drive unit 11b].
Now, the drive arm 20a of the fork 20 is set to the 2 position.

A spring 28 is provided with one end locked at the tip of the drive arm 20a and the other end locked at an appropriate position in the body beyond the pivot point with the pivot point 23 as the base point.

In the second position of the drive arm 20a of the fork 20, the clutch body 18 is set to the α side and the clutch pawl 1 is
8a and the clutch pawl 16a of the driven bevel gear 16 mesh with each other, and the drive shaft 13 passes through the driven bevel gear 16.
to drive. If the rotation direction of the drive shaft 13 in this state is the forward rotation direction, the forward rotation of the drive shaft 13 causes the conveyor belts 22a, 22b to move in the left conveyance direction.

In the C position of the drive arm 20a of the fork 20, contrary to the above-mentioned A position, the clutch body 18 is set to the β side, the clutch pawl 18a and the clutch pawl 17a are engaged, and the drive shaft 13 is moved through the driven bevel gear 17. to drive. In this state, drive shaft 1
3, the conveyor belts 22a and 22b are reversely moved in the right conveyance direction.

Referring to FIG. 4 during the reaping work, when entering the row, first, at the cutting edge of the machine's movement, the left sensor 11 is in the non-operating position B, as shown in FIG. is to the left. In the reaping state in which the grain has entered the row, the left sensor 11 is in the operating position A as shown in Figure b, and the transport direction of both the left and right transport devices 6 is to the right, and the reaped grain culm is discharged to the field on the right side of the machine.

The purpose of the present invention can be achieved by activating the left sensor and setting both the left and right conveyance devices 6 to the right conveyance state during reaping work when there is uncut culm on the left side of the machine. It is sufficient to equip the sensor 11 and have it perform the action shown in FIG. As shown in Figure 4c,
The operating position A is maintained, and both the left and right conveyance devices 6 maintain the right conveyance state.

In addition, in the embodiment, as shown in FIG. 2, the right sensor 1
2 and is linked to the left sensor 11, so
Similar to the operation of the left sensor, when the right sensor 12 is activated and reaches the operating position A, the spring 28 is moved beyond the fulcrum, the clutch body 18 is moved in the α direction, and the drive shaft 13 is rotated in the forward direction, allowing both left and right conveyance. The conveyance direction of the device 6 is switched to the left, and the left sensor 11 is returned to the non-operating position B.

Reference numeral 29 denotes a locking metal fitting attached to an appropriate position on the aircraft, and has a locking portion that can be freely locked with the tips of the sensors 11 and 12 in order to allow the sensors 11 and 12 to be stored as needed. (See Figure 2).

In the above embodiment, the sensors 11 and 12 and the clutch body 18 are mechanically interlocked, but the sensors 11 and 12 are used as electric detection means, and the transmission direction is determined by selective operation of an electromagnetic clutch instead of the clutch body 18. The object of the present invention can also be achieved even if the electromagnetic clutch is configured to be freely selectable and the electromagnetic clutch is controlled by the operation of an electric sensor.

Furthermore, in the above embodiment, the switching device discharges the harvested grain stalks to the field on the right side of the machine body when the left sensor senses it, but the harvested grain stalks may also be discharged to the field on the left side of the machine body by the switching device when the right sensor senses it. Of course, it is only necessary to detect the uncut side with a sensor and operate the switching device for both the left and right conveying devices in order to release the harvested grain culm to the already cut side of the field.

As described above, the present invention is equipped with a sensor for detecting the presence or absence of uncut grain culms on the discharge side of the machine, and uses both left and right conveyance devices to selectively discharge harvested grain culms to the left or right side of the machine. Since the direction is automatically switched to the direction of the harvested field by the operation of the sensor, the carrying direction of both the left and right carrying devices can be automatically switched without the need for manual operation of the switching lever. , has the effect of making reaping work easier.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the main parts of a reaping machine implementing the present invention. FIG. 2 is also a partial plan view.
FIG. 3 is a schematic plan view of the switching device. FIG. 4 is a schematic diagram showing the operation of the present invention, a
The figure shows the grain before it enters the row of the erect grain culm, figure b shows it enters the line and is in the process of reaping, and figure c shows the situation when it has passed through the line. 6...Both left and right transport devices, 11...Left sensor, 1
8...clutch body, 20...fork.

Claims (1)

[Scope of utility model registration request] In a reaping machine that has both left and right conveying devices that face both the left and right directions of the machine body, and which can be selected freely, a part of the machine body can sense whether uncut culms are present on the left or right side of the machine body. The reaping machine is equipped with a sensor for selecting the transport direction of the left and right transport devices, and a switching device for selecting the transport direction of the left and right transport devices is linked to the sensor to release the reaped grain culm to the harvested side. Emission device.