JPS6210605B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a structure in which one end of the binding space is pivotally connected to the free end of the reciprocating swing link, and the intermediate part thereof is pivotally connected to the eccentric part of the drive rotating body. Connect and
A plurality of stem culm bundle discharge ports from the binding space of a bundling device equipped with a discharge arm capable of forcibly discharging the stem culm bundle in the bundling space by a circulation movement accompanying the driving rotation of the drive rotor. a collecting section capable of collecting and holding stem culm bundles is arranged in series, and an arm for holding a swinging fulcrum shaft of the reciprocating swinging link is configured to be freely rotatable around the rotational axis of the drive rotary body, and
By rotating this arm integrally with the drive rotating body against a mechanism that biases and holds the arm in a fixed position on its rotational path, a plurality of particles collected in the collection section with the discharge arm are The present invention relates to a reaping and tying machine that is equipped with a clutch mechanism that can be switched to a state in which a group of stem and culm bundles is forcibly discharged to the outside. This type of reaping and tying machine operates by engaging and operating the clutch mechanism based on a predetermined amount of stem culm bundles being collected in the collecting section, thereby releasing one discharge arm originally equipped in the tying device. With this, the plurality of stem culms collected in the collecting section can be forcibly discharged to the outside. There is no need to separately provide a dedicated ejector for ejecting and a drive mechanism for moving the ejector in a quasi-circular motion within the collecting section, and there is an advantage that the ejection structure can be simplified and made more compact. SUMMARY OF THE INVENTION An object of the present invention is to improve the reaping and tying machine having the above-mentioned advantages so that the clutch mechanism can be switched reliably and easily. That is, the reaping and tying machine according to the present invention is provided with a device for detecting that a predetermined amount of stem culm bundles have been collected in the collecting section, and based on the detection result of this device, the clutch mechanism Since the clutch mechanism is configured to automatically and reversibly engage and operate, there is no need to forget or forget to operate the clutch mechanism as would be the case when manually engaging or disengaging the clutch mechanism. A state in which the discharging arm is forcibly discharged into a collecting section side a bundle of stem culms in a bundling space and a state in which a plurality of stem culm groups collected in the collecting section are forcibly discharged to the outside without any troublesome operations. It has now been possible to switch between the two reliably and easily. Embodiments of the present invention will be described below based on the drawings. Figure 1 shows a single-row mowing type binder, which pulls planted stem culms rearward and upward in front of a running machine main body A having a pair of left and right running wheels 1 and a walking control handle 2. A hair raising device 3 and a clipper type reaping device 4 for cutting the base of the raised planted stem culm are arranged, and the traveling wheels 1,
1 and the reaping device 4, there is a binding device 5 for tying and discharging the reaped stem culms in a fixed amount at a point near the plant base in an almost upright position. It opens in the front-rear direction at or approximately at the center in the width direction, and is arranged in a gently inclined position facing toward the discharge port 7a of the collecting section 7, which will be described later, with respect to the left-right direction. The binding space 6 of this binding device 5 is connected to the discharge port side, and the binding device 5
A stem culm mounting deck 7A and a stem culm guide rod 7B are provided in a horizontally elongated space having a discharge port 7a that opens on one side through between the running wheels 1 and 1, and a plurality of stem culm bundles are arranged in an almost vertical position. Collection unit 7 that can be collected and held by
and on the discharge port 7a side of the collection part 7, in contact with the base of the collected stem culm group to be discharged,
A stock removal rod 8 is provided which allows the stock to be laid down in a state where it is located on the laterally outer side of these ears. The binding device 5 is constructed as follows. That is, as shown in FIGS. 2 to 4, on one side of the binding space 6, a constantly driven packer 9 for scraping the reaped stem culms into the binding space 6 and a needle 10 for supplying a binding string are installed. The other side is provided with a building 11, a knotting mechanism 13 having a string holder 12, and a release arm 14 that is driven in synchronization with this, and
On the discharge outlet side of the binding space 6, a door 15 for sensing the focused pressure of the cut stem culm is provided. The needle 10 and the knotting mechanism 13 are configured to bind the reaped stem culms collected in the binding space 6 by synchronized driving based on the detection of the focusing pressure of the door 15 above a certain level. One end of the ejection arm 14 is connected to a fulcrum arm 16
It is pivotally connected to the free end of a reciprocating swinging arm 18 which is pivotally mounted via a swinging fulcrum shaft 17, and its intermediate part is pivotally connected to an eccentric part of a timing gear 19 which is a component of the connecting mechanism 13. The bundles of stems and culms in the bundling space 6 are forcibly discharged by the circulation movement caused by the intermittent drive rotation of the timing gear 19. The support arm 16 that supports the swing fulcrum shaft 17 is configured to be rotatable around the axis of the intermittent drive shaft 20 of the timing gear 19, and the fulcrum arm 16 is provided between the fulcrum arm 16 and the fixed part. A spring 21A and a stopper 21B are provided which constitute a mechanism 21 for biasing and holding the arm 16 in a fixed position on its rotational path. Further, the fulcrum arm 16 is rotated against the timing gear 19 against the biasing force of the spring 21A.
By rotating integrally with the release arm 1
A clutch mechanism 22 is provided which can be switched to a state in which a plurality of stem culm bundle groups collected in the collecting section 7 are forcibly discharged laterally and outwardly using a clutch mechanism 22. A device 23 for detecting that a bundle has been collected is provided and, based on the detection result of this device 23, the clutch mechanism 22 is automatically and reversibly engaged and actuated. The clutch mechanism 22 is constructed as follows. That is, a roller 26 is attached to the pivot shaft 24 of the discharge arm 14 and the swing arm 18, and is movable in and out of the timing gear 19, and is biased to move in the direction of separation via a spring 25. A clutch member 27 is pivotally connected to the timing gear 19, and a clutch member 27 is attached to the timing gear 19 so that the timing gear 19 is connected to the timing gear 19. A cam member 28 is provided which can engage the roller 26 of the clutch member 27 only when the clutch member 27 moves to the center,
Further, a clutch is provided beside the rotation path of the timing gear 19, which releases the engagement between the roller 26 of the clutch member 27 and the cam member 28 when the discharge arm 14 moves to the collecting stalk group discharge end position. A cutting member 29 is provided. Based on the detection result of the detection device 23, the clutch member 27 is projected to the engaged position against the biasing force of the spring 25.
As the timing gear 19 rotates, the roller 26 of the clutch member 27 and the cam member 28 on the timing gear 19 side engage with each other, and both of them 26, 2
8 is released by the clutch cutting member 29, the release arm 14 and the swing link 1
8. The fulcrum arm 16 and the timing gear 19 are integrally rotated around the axis of the intermittent drive shaft 20 against the spring 21A, and the circulation movement of the discharge arm 14 from the bundling space 6 to the collecting section 7 causes the bundling space 6 One of the stem culm bundles and the plurality of stem culm bundles collected in the collecting section 7 are forcibly discharged to the lateral outer side of the fuselage. The detection device 23 is configured as follows. That is, a sensing lever 30 made of an elastic material is provided on the discharge port 7a side of the collecting section 7, and the sensing lever 30 is made of an elastic material and swings laterally and outwardly as it comes into contact with the stem culm bundle group. Vertical axis 3 aligned parallel to fulcrum axis 31
2, the clutch member 27 is protruded into the circulation path of the clutch member 27, and the spring 25
A swingable cam member 33 is pivotally mounted between an active state in which the clutch is swung to the engaged position against the urging force of the cam member 33 and a non-active state in which the cam member 33 is retracted from the circulation path. Sensing lever 3
0 through a spring 34, and biases and holds the sensing lever 30 and the cam member 33 in the sensing action position and non-action state, respectively. The clutch member 27 is configured to be switched to the clutch engaged position by swinging the cam member 33 into the operating state in conjunction with a swinging displacement of the sensing lever 30 above a certain level when a bundle is collected. There is.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the reaping and binding machine according to the present invention, and FIG. 1 is an overall plan view of the binder, and FIG.
3 are partially cutaway plan views and side views of the main parts, and FIGS. 4A to 4C are plan views showing the discharge state. 5 ... Binding device, 6... Binding space, 7... Collection section, 14... Release arm, 16... Arm, 18
... Reciprocating swing link, 19 ... Drive rotating body, 21
...Biasing holding mechanism, 22...Clutch mechanism, 23
...Detection device.

Claims (1)

[Scope of Claims] 1. On one side of the bundling space 6, one end thereof is pivotally connected to the free end of the reciprocating link 18, and the intermediate part thereof is pivotally connected to the eccentric part of the drive rotary body 19. hand,
A bundling device 5 equipped with a discharge arm 14 capable of forcibly releasing the stem culm bundle in the bundling space 6 by a circulation movement accompanying the drive rotation of the driving rotary body 19 releases the stem culm bundle from the bundling space 6. A collecting section 7 capable of collecting and holding a plurality of stem culm bundles is connected to the outlet side, and an arm 16 that holds the swinging fulcrum shaft 17 of the reciprocating swinging link 18 is connected to the rotation axis of the driving rotary body 19. By rotating the arm 16 integrally with the drive rotary body 19 against the biasing force of the mechanism 21 and the mechanism 21 that biases and holds the arm 16 at a fixed position on its rotation path, The reaping and tying machine is provided with a clutch mechanism 22 that can be switched to a state in which a plurality of stem culm bundle groups collected in the collecting section 7 are forcibly discharged to the outside with an arm 14, wherein the collecting section 7 is provided with a device 23 for detecting that a predetermined amount of stem culm bundles have been collected, and the clutch mechanism 22 is configured to automatically and reversibly engage and operate based on the detection result of this device 23. A reaping and tying machine characterized by: 2. The reaping and tying machine according to claim 1, wherein the detection device 22 detects the collection pressure of the stem culm bundle group.