JPS61187725A - Release apparatus of lock apparatus of discharge gate in roll baler - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a roll baler in which a bale discharge gate, which is provided to be opened when a bale formed into a roll in a bale chamber is taken out from the bale chamber, is held in a closed position. The present invention relates to an improvement in a release device for releasing a lock device for a discharge gate.

During grass harvesting using a roll baler, a pick-up device installed at the front end of the roll baler's body picks up rice straw, etc. that has been dried on the surface of the field, and loads it onto the machine. The bale is fed into a bale chamber and rolled into a bundle by a winding device installed in the bale chamber, so that the bale is formed into a roll of a predetermined thickness. The operator releases the locking device that locks the bale chamber discharge gate in the closed position by knowing the activation of the sensor that detects the pressure caused by the pressure reaching the discharge gate, and the spring urges the discharge gate to the open side. By opening the discharge gate, the bale chamber is opened and the bale is taken out from the bale chamber to the outside of the machine.However, in the case of conventional roll balers, the locking device of this discharge gate can only be released from one machine. This is done by operating a release lever provided on the Therefore, if the operator accidentally operates the release lever and releases the locking device during one operation,
An accident in which the discharge gate is opened by a spring while the operating parts such as the winding device in the bale chamber are operating, causing damage to the operating parts of the aircraft or injuring the operator. There is a problem that causes

The present invention has been made to solve this problem, and the unlocking operation of the locking device of the discharge gate is
This is done only when the work clutch is disengaged and the operation of the operating part is stopped, so that even if the operator accidentally moves the control lever during work, the discharge gate will not open. An object of the present invention is to provide a release device for a lock device of a discharge gate.

To this end, in the present invention, the working clutch lever, which is pivotally supported on the aircraft body so as to freely rotate around a pivot point, is configured to turn on the transmission between the operating shaft of the working part and the output shaft of the engine.
a locking device that connects the operating section of the work clutch to be turned off via a linkage mechanism so that the work clutch is turned on and off by rotation of the work clutch lever, and locks the discharge gate of the bale chamber in a closed position; The working clutch lever is connected via a link mechanism so as to release the locking device by rotating the working clutch lever from a rotational position where the working clutch is turned off in a direction opposite to the direction in which the working clutch is turned on. This working clutch lever provides a means for releasing the locking device.

Next, an example of implementation will be described in detail with reference to the drawings.

In Figure 1, 1 is a machine that can run freely by crawler-type traveling devices 2 and 2 (one is not clearly shown in the drawing) installed on the left and right sides of the bottom, and 3 is mounted on the front end of the machine 1. A pick-up device 4 is a bale chamber arranged on the upper surface of the machine l and arranged behind the pick-up device 3 to receive the grass Φ rice straw that is raised wtS from the surface of the field by the pick-up device 3; 5 is an engine inside; The bale chamber 4, which is a machine housing that houses the message transmission mechanism and is mounted on the rear of the fuselage 1, has inside thereof the bale chamber 4, which is scooped up by the pick-up device 3 as shown in FIG. A winding device 41 is installed to take over the grass fed into the reception port 40 that opens at the front of the bale chamber 4 and wind it into a final roll. It is formed in a discharge gate 4a which rotates upward to open and open as shown by the chain line in FIG. 2 about an opening/closing fulcrum 42 provided at a fixed position. The ejector 4a is urged to rotate toward the opening side by a gas spring 43 provided between the lower half 4b of the bail chamber 4 and a mechanism integrally connected to the body 1. As the gas spring 43 expands,
The direction is opened and rotated to the state position shown by the chain line in FIG. Further, when the gas spring 43 is rotated to the position shown by the solid line in FIG. 2 against the biasing force of the gas spring 43, the locking device 6 locks the gas spring 43 and holds it in the closed position.

Reference numeral 7 designates a working clutch lever whose operating portion protrudes from the upper surface of the machine casing 5 and is pivotally supported on the machine body 1. As shown in FIG. It is pivotally supported by a support shaft 70 provided at the center, and freely rotates about the support shaft 70 in the front-back direction of the fuselage 1. The working clutch lever 71± has a connecting mechanism, in which a connecting pin 71 provided at the lower end below the supporting shaft 70, which is a rotational fulcrum, is formed on a release wire 72 consisting of an inner 72a and an outer 72b. It is connected to the operating part of the working clutch installed in the machine housing 5 mentioned above.

When the working clutch lever 7 is in the upright position as shown in Fig. 5, the working clutch is turned off (neutral).
As shown in FIG. 6, the operating shafts of the pickup device M3 and the retracting device 41, which are the working parts, are held in a state where electrical conduction is cut off from the output shaft of the engine, and tilted forward as shown in FIG. When in the rotated state position, the working clutch is turned on (closed) to maintain a state in which conduction between the operating shaft of the working section and the output shaft of the engine is in contact.

As shown in FIG. 5, the locking device 6 has a locking arm 61 attached to a support shaft 60 fixed to the mechanism on the lower half side 4b of the bail chamber 4 in the longitudinal direction of the body 1. A hook piece 61a is formed at the upper part of the lower half above the support shaft 60 of the lock arm 61 so that it can freely rotate. 61a,
The above-mentioned discharge gate 4 forming the upper half of the bale chamber 4
When the upper half of the lock arm 61 rotates backwards (clockwise rotation in Figure 5), the upper half of the lock arm 61 engages with the lock pin 62 installed in the mechanism of a, and rotates forward (clockwise rotation in Figure 5). It is configured so that it can be detachably engaged so that it can be detached by rotating counterclockwise in FIG. 5. A connecting pin 63 is attached to the lower end of the lower half of the lock arm 61 below the support shaft 60.
is provided, and one end side of a link mechanism consisting of a release wire 64 formed by an inner 64a and an outer 64b is linked to the link bin 63, and the link 4+! Lock arm 6 is activated by operating the operating lever connected to the other end of the structure.
1 is rotated counterclockwise in FIG. 5 around the support shaft 60 to disengage the lock pin 62 and release the lock. As shown in FIG. 5, the other end of the linking mechanism made of the wire 64 is connected to M via a linking tool 65 and a linking pin 66 in the middle of the upper half above the support shaft 70 of the working clutch lever 7. The engagement hole 65a that fits into the connecting pin 66 of the connecting tool 65 is formed into an elongated hole that is long in the rotational direction of the work clutch lever 7 (the front-rear direction of body a). When the clutch lever 7 tilts forward from the upright neutral position shown in FIG. This action causes play in the release wire 64 connected to the lock arm 61, causing the work clutch lever 7 to rotate backward from the neutral position of the upright position to further loosen the release wire 72 connected to the work clutch. The lock arm 61 is rotated counterclockwise by pulling the release wire 64 connected to the lock arm 61.

Furthermore, the engagement hole 73a of the connector 73 of the release wire 72 connected to the connecting pin 71 at the lower end of the working clutch lever 7 is connected to the connecting pin 71 at the lower end of the working clutch lever 7. The working clutch lever 7 is formed into an elongated hole that is long in the rotational direction of the working clutch lever 7 (the front-rear direction of the body 1) so that the operation of tilting and rotating the clutch lever has play with respect to the release wire 72.

Reference numeral 8 denotes a guide groove for regulating the rotational movement of the aforementioned working clutch lever 7, and as shown in FIG. The guide groove 8 is formed in the shape of a long groove in the front-rear direction.
As shown in FIG. 4, engaging portions 80, 81, and 82 for engaging the working clutch lever 7 are formed at both front and rear ends and at the intermediate portion, respectively, and the engaging portion 80 on the front end side is provided with engaging portions 80, 81, and 82 for engaging the working clutch lever 7, respectively. By positioning the clutch lever 7, the state shown in Fig. 6 is achieved and the working clutch is turned on, and by positioning the working clutch lever 7 within the engaging portion 81 of the intermediate portion, the state shown in Fig. 5 is obtained. The working clutch is turned off to become neutral, and by positioning the working clutch lever 7 to the retaining portion 82 on the rear end side, the state shown in Fig. 7 is achieved, and the lock arm 61 is released with the working clutch in the off state. It is designed to be rotated into position.

In the illustrated embodiment, 67 is the lock arm 6.
1 is a spring that urges it to rotate toward the lock side, 90 is a latch lever that runs, 91 and 92 are side clutch levers 1
93 is an accelerator lever of the engine.

The embodiment device constructed as described above operates as follows.

When the working clutch lever 7 is in a neutral state where it is engaged with the retaining portion 81 in the middle of the guide groove 8, the lock arm 61 of the lock device 6 is engaged with the lock pin 62 as shown in FIG. It is held in the engaged and locked state.

Next, from this state, when the working clutch lever 7 is tilted forward and engaged with the engaging portion 80 of the guide groove 8, the release wire 72 connected to the working clutch is pulled as shown in FIG. However, the release wire 64 connected to the locking device 6 has play in the movement of the working clutch lever 7, and the locking device 6 is held in the locked state.

Next, after returning the working clutch lever 7 to the neutral position, the locking device 6 is activated as shown in FIG. The lock arm 61 is now held in the state of being rotated toward the release side.

At this time, the rotation of the 1-work clutch lever 7 becomes loose with respect to the release wire 72 connected to the work clutch, and the work clutch continues to be in an OFF state.

As explained above, the means of the present invention is such that the release operation of the locking device that locks the discharge gate of the bale chamber in the closed position moves the working clutch lever, which controls on/off of the working clutch, from the neutral state position. By rotating the work clutch to the side opposite to the side that turns it on, the continuous firing mechanism is towed and activated, so when the locking device is released to rotate the discharge gate to open, it is necessary to Furthermore, even if the operator accidentally moves the work clutch lever during work, the work clutch will go through the off (neutral) position and then turn off the work clutch. Since the locking device is released while the ejection gate is in the closed state, it is possible to reliably prevent damage to the working part of the machine body and injuries caused by the opening of the ejection gate during work.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a roll baler in which the present invention can be implemented;
The figure is a partially broken side view of the same as the above, Figure 3 is a perspective view of the main parts of the same as the above, Figure 4 is a plan view of the guide groove of the same as the above, and Figure 5 is the locking device of the same as the above and the working clutch lever. A partially broken side view of a connecting part. FIG. 6 and FIG. 7 are explanatory diagrams of the operation of the same portion. Explanation of drawing symbols 1... Airframe 2... Traveling device 3...
Pickup equipment M 4...Bale chamber 4a...Ejection gate) 4b...Lower half side 40...Intake port
41... Winding device 42... Opening/closing fulcrum 4
3... Gas spring 5... Ia housing 50...
Panel 6...Lock device 60...Spindle 61...
Lock arm 61a... Hook piece 62... Lock pin 63-68... Connection pin 64... Release wire 64a... Inner 64b... Outer 65... Connector 65a... Engagement hole
67... Spring 7... Working clutch lever 7
0... Support shaft 71... Connection pin 72... Release wire 72a... Inner 72b... Outer 73... Connector 73a... Engagement hole 8
... Guide groove 80-81-82 ... Engagement part 9
0... Clutch lever 91, 92... Side clutch lever 93... Accelerator lever Fig. 1 Fig. 2 4 115g ゝ\-11'

Claims (1)

[Claims] The operating part of the working clutch, which controls on/off the transmission between the operating shaft of the working part and the output shaft of the engine, is attached to the working clutch lever, which is supported on the aircraft body so that it can freely rotate around a pivot point.
A locking device that connects the work clutch to turn on and off by turning the work clutch lever and locks the discharge gate of the bale chamber in a closed position; A releasing device for a locking device of a discharge gate in a roll baler, which is connected via a linking mechanism so that the locking device is released by rotating in a direction opposite to the direction in which a work clutch is turned on from a rotating position.