JPH0144027Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a binder that can bind and release harvested grain culms in fixed amounts at a time, and is a two-bundle discharge device for a binder that can discharge two bundles of bound grain culm bundles to one side of the machine body. Regarding.

As is well known, the binder moves while reaping a group of grain culms that are planted in multiple rows in the field, binds the harvested grain culms in a fixed amount, and releases the bundles one by one at appropriate intervals to one side of the machine. For some reason, the post-work to collect the emitted bundles became a labor-intensive task.

Therefore, this invention takes out a PTO shaft that is decelerated by 1/2 from the knot shaft that drives the discharge arm, and uses this PTO shaft to discharge two bundles of bound grain culm bundles one by one. A release device is provided to address the above-mentioned problems.

In other words, with the above reduction ratio, the PTO shaft rotates once for every two rotations of the knotting shaft, and as a result, the grain culm is bound twice during two rotations of the knotting shaft.
On the other hand, the shutter linked to the PTO shaft opens and closes once during one revolution of the PTO shaft, and returns to the closed state after opening.

Of the two bundles of bundled grain culm bundles accompanying the two rotations of the knotting shaft, the first one is held in a held state by the shutter, and the timing of the release of the next bundle is matched with the above. This enables the release of two bundles at a time in conjunction with one opening/closing operation of the shutter in conjunction with one rotation of the PTO shaft.

Hereinafter, specific embodiments of this invention will be described with reference to the drawings.

The binder includes a transmission box 2 that pivotally supports the wheels 1, 1;
It is formed by attaching a reaping binding section B to the front part of a drive section A that is composed of an engine, a control handle 4, a speed change operation device 5, and the like.

The reaping bundling section B includes a grain culm pulling device 7 tilted upwardly from the front of the reaping frame 6, and a reaping device 10 at an appropriate position in the lower space communicating with the moving path 9 formed by this device 7. Along with installing horizontally,
A cross-feeding passage 11 and a grain culm support guide plate 12 tilting backwards are installed on the rear side, and a binding case 13 having a generally L-shape in plan view is disposed at the end of the cross-feeding passage 11. A lateral feed passage 11 is connected to a lateral bundle discharging passage 14 provided in the lateral direction, and a binding device 15 supported and driven by a binding case 13 is installed so as to sandwich this bundle discharging passage 14.

The tying device 15 has a tying part 17 consisting of a knotter bill, a string holder, a discharging arm 16, a knot cover, etc. located at the front of the machine across the tying release passage 14, and a tying part 17 including a knotter bill, a string holder, a discharging arm 16, a knot cover, etc., on the rear side of this passage 14. position.

By the way, in the two-bundle discharge device according to this invention, the PTO shaft 23 is projected upward from the extension bundling case 13a by reducing the speed to 1/2 by the gears 21 and 22 from the middle part of the joint shaft 20 that drives the discharge arm 16 intermittently. ,
A traction body 24 having a traction pin 25 fixed to its upper surface is fixed to the protrusion, and one end of a crank 26 is rotatably supported above where it can come into contact with the pin 25.

Further, the inner 28 end of the operating tool 27 is pivotally connected to the other end of the crank 26 by a connecting pin 26a.
The outer 29- is fixed to the extension binding case 23a, etc., at a position where the axis position of the PTO shaft 23 is shifted upward by a required distance l from the line of action S of the operating tool 27 of the fastening part 30. Attach.

Then, move the tow pin 25 position to the PTO shaft 23.
The position where the crank 26 tensioned by the force of the spring 31 contacts the crank 26 under no load (see Fig. 2) or the direction of movement in which the crank 26 does not contact the end distance state between the shaft center and the fastening portion 30. The operation and timing of the discharge arm 16 are adjusted by setting the discharge arm 16 at a position appropriately shifted in the opposite direction.

On the other hand, the outer 29 end of the extended end of the operating tool 27 is fixed to the extension binding case 13a, etc., the inner 28 end is attached with a spring 31 on the extension, and the other end of the spring 31 is also extended and tied. Case 13
Fix it by pulling it to something like a.

As a result, the crank 26 is always urged toward the fastening portion 30.

Next, a shutter 32 formed in an appropriate shape to receive the emitted bundle on the lower surface of the extension bundling case 13a near the attachment part of the inner 28 and the spring 31 is placed outside so as to block the bundling release passageway 14. The base is pivoted 33 to the upper surface of the extension binding case 13a so as to be openable and closable.In this case, the inner 28 and the spring 31 are arranged in relation to each other so that the vicinity of the attachment part of the spring 31 is located at an appropriate position on the base side, and the inner The shutter 32 can be opened and closed by the movement of the inner 28, and the shutter 32 can be opened and closed by appropriate means, such as means for slidably fitting a fitting pin fixed to the inner 28 into a long hole of the shutter 32 as shown in the embodiment. .

This causes the crank 26 to move to the tow pin 25.
When it is forcibly towed and rotated, it can change between the receiving position and the emitting position of the emitted bundle.

In the embodiment, a shutter arm 32a having a roughly Z-shape in side view is pivoted at the base side 33, and a bundle receiving plate 32b is fixed to the bundle release passage 14 side of the shutter arm 32a.

Therefore, in Fig. 2, the towing pin 25 is now rotated from the solid line position in the direction A and
When the crank 26 is forcibly rotated half a turn to the position opposite to the shaft 23 as shown by the chain line, the timing of the operation of the crank 26 and that of the ejection arm 16 is adjusted as described above, so that the ejection arm At the same time when one discharge bundle is sent from 16 to the shutter 32 side, the spring 31 is pulled through the inner 28, and the shutter 32, which had been closed until then at the solid line position, is opened in the A' direction to the chain line position.
Together with the previously received single bundle, the new bundle is immediately released to one side of the aircraft, creating what is called a two-bundle release.

Next, when the towing pin 25 rotates in the direction B from the chain line position to the solid line position and forcibly rotates the crank 26 by half a turn, the crank 26 crosses over the fulcrum in the middle of the rotation and is pushed through the inner 28 by the force of the spring 31. As the shutter 32 quickly rotates and returns to the position shown by the solid line, the shutter 32, which had been open, also quickly closes in the ``ro'' direction. The discharge to the outside of the aircraft is blocked and a bundle is received by the shutter 32.

Then, the traction pin 25 again moves half a turn in the A direction from the solid line position to the chain line position, and the two bundles are released as described above.

As is clear from the above explanation, according to this invention, the first emitted bundle is received while the shutter 32 is promptly closed, and the second emitted bundle is then released by the previously received emitted bundle. Since it is released to the field together with the bundle of emitted bundles, the
Since the released bundles can be collected two bundles at a time, the number of steps required for collection work can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a partially omitted side view showing a binder embodying this invention, and FIG. 2 is a configuration diagram showing the configuration of a two-bundle discharge device. Code, 13... Bundling case, 25... Towing pin, 14... Bundling discharge passage, 15... Binding device, 16... Discharging arm, 23... PTO shaft, 2
6...Crank, 27...Operation tool, 32...Shutter.

Claims (1)

[Claims for Utility Model Registration] A binding device 15 that binds the harvested grain culms conveyed to the bundling release path 14 and a discharge arm 16 that discharges the bundled grain culm bundles to one side of the machine body are supported and driven. In a binder having a binding case 13 that
A shutter 32 that can be opened and closed to receive the bundled grain culm bundle from the discharge arm 16 is provided on the side of the machine, and a PTO shaft 23 is installed to reduce the speed of the discharge arm 16 to 1/2 of the nodal shaft 20 that moves intermittently. A towing body 24 having a towing pin 25 on the upper surface is fixed to this PTO shaft 23, and
Further, one end of a crank 26 is rotatably supported on the upper part of the PTO shaft 23 so as to be in contact with the towing pin 25, and the other end of the crank 26 is connected to the upper part of the PTO shaft 23 through an operating tool 27. Connecting the end portion of the inner 28 which is constantly tensioned, and further, when the crank 26 is half-rotated by the traction pin 25,
The inner 28 is arranged so as not to go beyond the fulcrum with respect to the PTO shaft 23, which is the rotational fulcrum of the crank 26, and the inner 28 is
2 of the binder configured such that the vicinity of the other end of the binder 8 is connected in conjunction with the opening/closing operation of the shutter 32;
Bundle release device.