JPH074115B2 - Pruning height setting device of pruning machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a pruning height setting device of a pruning machine capable of setting a desired pruning height for pruning work before and during work. It is a thing.

(B) Prior art Recent pruning machines have drive wheels and idler wheels that are pressed against the trunk of a tree and are arranged so as to be able to support the machine body, and a transmitter of the transmitter is installed in the power transmission path to the drive wheels. A shift mechanism is provided for switching between forward and reverse shifts by a shift servo motor that is operated via a receiver and a controller in response to respective operation signals of the up switch and the down switch, and the drive wheels are driven in the forward and reverse directions through this shift mechanism. There is a radio control type that can raise and lower the body with respect to the trunk.

(C) Problems to be solved by the invention By the way, according to this type of pruning machine, the drive wheel is normally driven by the operation of the ascending switch of the transmitter through the receiver, the controller, the speed changing servomotor, and the speed changing mechanism. Then, when it was determined that the aircraft was spirally raised with respect to the trunk, and it was determined that the desired pruning height had been reached, since the aircraft was lowered by operating the transmitter's down switch, attention should be paid to the timing of that operation. If the timing is off, there is a risk that the pruning work will be performed to a height higher than necessary.

(D) Means for Solving the Problem Therefore, the present invention has a drive wheel and an idler wheel which are arranged in pressure contact with the periphery of a tree so as to be able to support the machine body, and in a power transmission path to the drive wheel, A transmission mechanism is provided for switching between forward and reverse shifts by a shift servomotor that is operated via a receiver and a controller in response to a signal from a transmitter, and the drive wheels are driven forward and reverse through this transmission mechanism to the trunk. In a radio-controlled pruning machine capable of raising and lowering a machine body, a pruning height setting device for setting a desired pruning height is provided on each of the transmitter and the machine side, and the transmitter among the both pruning height setting devices is provided. The transmitter is provided with a priority operation switch for preferentially selecting the side pruning height setting device.

(E) Operation With the above configuration, the pruning height can be set by the pruning height setting device on the machine side before work, and the worker must change the pruning height setting during work. Even if it occurs, the pruning height can be set by the pruning height setting device on the transmitter side, and the latter pruning height setting can be preferentially selected by operating the priority operation switch of the transmitter.

(F) Embodiment Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings.

First, as shown in FIG. 1 and FIG. 3, the schematic configuration of the pruning machine is a transmission case (4) in which an engine (1), a chain saw (2) and an appropriate number of drive wheels (3) are arranged. )When,
The idler wheels (5) and the like are disposed on the main frame (6) side, and the appropriate number of idler wheels (5) ... Are disposed on the winding frame (7) side, and the main frame (6) is disposed.
On the other hand, the winding frame (7) is pivotally attached to the pivot pin (8) so as to be openable and closable, and both frames (6) and (7) are engaged and disengaged by the engagement and disengagement spring (9). The drive wheels (3) and the idler wheels (5) are elastically biased with a predetermined rising lead angle and are pressed against the circumference of the tree trunk (10) by the engagement and disengagement springs (9). It is supposed to be done.

The power of the engine (1) is transmitted from the output shaft (1a) projecting in the transmission case (4) to the reduction gear group (11) and the transmission mechanism (1).
2), each pair of deceleration bevel gears (13) ... Is transmitted to the drive wheels (3) via the power transmission path (14), and also to the chain saw (2), the output shaft (1a). Has been transmitted through. Switching between the forward rotation position (U) and the reverse rotation position (D) of the forward / reverse clutch body (15) of the speed change mechanism (12) is performed outside the machine body (A) as shown in FIGS. 1 and 2. By selectively operating the ascending switch (17) or the descending switch (18) of the transmitter (16), each operation signal is sent to the receiver (19) on the machine body (A) side, and this receiver (19) ) Through the command data identification circuit (21), the command determination circuit (22) and the output circuit (23) in the controller (20), and the corresponding forward rotation signal or reverse rotation signal from this output circuit (23) is used for shifting. It is configured to be sent to a servo motor (24) and remotely operated by corresponding operation. In addition, the engine (1) is set to the start switch (2
5) When it is started by operation, this signal goes through the command data identification circuit (21), the command judgment circuit (22) and the output circuit (23) in the controller (20), and the neutral signal from this output circuit (23). Is sent to the shifting servomotor (24), and this operation causes the forward / reverse clutch body (15) to move to the neutral position (N).
It is designed to automatically switch to. With this, after the engine (1) is started, when the transmitter (16) rise switch (17) is turned on on the ground, the forward / reverse clutch body (15) is switched from the neutral position (N) to the normal position (U). Drive wheels (3) are driven to rotate normally, the machine body (A) spirally rises with respect to the trunk (10), and the branch in the middle of the climb is cut by the chain saw (2) until the desired pruning height is reached. Around the time when the striking work was performed, the lower switch (18) of the transmitter (16) was turned on to switch the forward / reverse clutch body (15) to the reverse position (D) to drive the drive wheels (3) ... A) can be lowered.

By the way, according to the present invention, a transmitter (16) and an airframe (A)
A pruning height setting device (26) (27) that can set the desired pruning height is provided on each side, and when the machine body (A) spirals up to the set pruning height with respect to the trunk (10), it automatically Receiver (19), controller (20), servomotor for shifting (2
4) The drive wheels (3) are switched from forward rotation drive to reverse rotation drive via a speed change mechanism (12) and the like so that they can be automatically moved up and down.

That is, the pruning height is set by the transmitter side pruning height setting device (26) such as a dial built into the transmitter (16), and the dial side body side branch, which is also provided at a proper place on the body (A) side. It is designed to be performed with the hammering height setting device (27), of which the transmitter side branching hammering height setting device (26) is prioritized, and the priority operation switch (28) for preferential selection is transmitted. It is provided in the vessel (16). As a result, when the priority operation switch (28) is not operated, the pruning work is carried out to the set height before the work by the machine side pruning height setting device (27), and then it automatically descends. When the operation switch (28) is operated, the pruning height setting device (27) on the machine side
The pruning work is carried out up to the set height by the pruning height setting device (26) on the transmitter side, and then automatically descends. Therefore, when the aircraft (A) is mounted on the trunk (10), the height is set by the aircraft side pruning height setting device (27), the engine (1) is started, and then the lift switch (17) is operated. As described above, the aircraft (A) is spirally lifted, and the height is set by the pruning height setting device (26) on the transmitter side while the work is rising to this set height, and the priority operation switch (28) is operated. Then, it is possible to change the set height. At this time, for the actual pruning height, a rotation detection sensor (29) for detecting the rotation speed of the one idler wheel (5) (in the embodiment, the idler wheel on the side of the main frame (6)) is provided at an appropriate position, and this rotation is detected. Detection sensor (2
The detection signals sent from the controller 9) are sent to the controller (2
The counting circuit (30) in (0) adjusts the calculation and converts it into a rising height for measurement, and the measured height is sent to the comparison circuit (31) as a signal, and the comparison circuit (31) This measured height is the height set by the pruning height setting device (26) (27) (The height set by the pruning height setting device (26) on the transmitter side is the receiver (19), command data identification circuit After going through (21), the comparison circuit (3
1) is reached, the speed changing servomotor (24) is operated via the output circuit (23) to move the forward / reverse clutch body (15) from the forward rotation position (U). It is switched to the reverse rotation position (D) and the aforementioned automatic lowering is performed.

Use the lowering switch (18) of the transmitter (16) when you want to make an emergency lowering, such as when the transmitter side pruning height setting device (26) incorrectly sets the height and raises the aircraft (A). To be done. Further, the transmitter (16) is provided with an engine throttle height change switch (32), and by switching the changeover switch (32) to the high speed side or the low speed side, a high speed signal or a low speed signal is sent to the receiver (19). After inputting, through the command data identification circuit (21), the command judgment circuit (22), and the output circuit (23) in the controller (20), the corresponding high speed operation signal or low speed operation signal is output from this output circuit (23). To the engine throttle height switching servomotor (33) and correspondingly actuate the engine (1) so that it can rotate at high speed or at low speed. This makes the pruning work section low speed and other sections. Then you can speed up and increase work efficiency.

In the figure, (34) is the forward / reverse clutch body (15) in the forward rotation position (U).
When it comes to the
(5) is a sprocket for reverse rotation, in which mutual engagement and disengagement claws engage when the forward / reverse clutch body (15) reaches the reverse rotation position (D), (36)
Is a universal joint.

(G) Effects of the Invention As is clear from the above description, the present invention provides a radio-controlled pruning machine, wherein the transmitter (16) and the machine body (A) are provided.
A pruning height setting device (26) (27) for setting a desired pruning height is provided on each side, and the transmitter-side pruning height setting device of the both pruning height setting devices (26) (27) is provided. Since the transmitter (16) is provided with the priority operation switch (28) for preferentially selecting (26), the pruning height can be set by the machine side pruning height setting device (27), Further, during the work, the pruning height setting device (26) on the transmitter side can set the pruning height on the ground so that the pruning height can be surely set at any one of them. Also, after setting the height by the pruning height setting device (27) on the machine side, pruning work is performed, and during this work, the height is set by the pruning height setting device (26) on the transmitter side and the priority operation switch ( If you operate step 28), you can easily change the settings even if you make a mistake at startup, and work accuracy and work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a power transmission path of a pruning machine embodying the present invention, and FIG. 2 is a block diagram showing the same power transmission path.
FIG. 3 is a plan view of the same pruning machine. (Code) (3) …… Drive wheel, (5) …… Idle wheel (10) …… Stem, (12) …… Transmission mechanism (14) …… Power transmission path, (19) …… Receiver (20 ) …… Controller (24) …… Servo motor for speed change (26) …… (Transmitter side) Pruning height setting device (27) …… (Airframe side) Pruning height setting device (28) …… Priority Operation switch, (A) ... Aircraft

Claims (1)

[Claims] Claims: 1. Drive wheels (3) ... and idler wheels (5) arranged in pressure contact with the periphery of a tree trunk (10) so as to be able to support the machine body (A).
And has a power transmission path (14) to the drive wheels (3).
A transmission mechanism (12) for switching between forward and reverse shifts by a shift servomotor (24) operated via a receiver (19) and a controller (20) by a signal from a transmitter (16) is provided therein. In the radio-controlled pruning machine capable of moving the drive wheels (3) ... Forward and reverse through a speed change mechanism (12) to move the body (A) up and down with respect to the trunk (10), the transmitter (1
6) and a pruning height setting device (26) (27) for setting a desired pruning height on the machine (A) side respectively, and the transmission of both pruning height setting devices (26) (27) is performed. Priority operation switch (28) for preferentially selecting the pruning height setting device (26)
The pruning height setting device of the pruning machine, characterized in that the transmitter (16) is provided.