JP2010099005A - Tea leaf plucker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tea leaf plucker capable of eliminating a troublesome switching work associated with smoothing work, and shortening working hours for the smoothing work. <P>SOLUTION: On the reverse side of a cutting blade 22a relative to its mowing direction, a second cutting blade 22b for smooth cutting is provided which is driven in combination with the cutting blade 22a. In one trip (one-way) of a tea ridge, plucking work is done by the cutting blade 22a simultaneously as the smoothing work is done by the second cutting blade 22b, thereby eliminating the troublesome switching work associated with the smoothing work, and shortening the working hours for the smoothing work. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a tea leaf plucking machine, and more particularly to a tea leaf plucking machine equipped with a plowing device that performs plucking work and pruning work so as to be movable up and down.

2. Description of the Related Art Conventionally, there is known a tea leaf plucking machine equipped with a plowing device that performs plucking work and pruning work so as to be movable up and down.
For example, in the tea leaf plucking machine described in Patent Document 1, the cutting device includes a cutting blade and a duct that ejects a pressure wind that moves the tea leaf branch cut by the cutting blade backward in the cutting direction. The lower end of the pair of left and right chains that are rolled up synchronously by a lifting and lowering device that is supported by the machine body frame and that is driven and controlled in accordance with the switch operation of the lifting switch is locked.
As the lift switch, an (ON) -OFF- (ON) type toggle switch ((ON) is turned on only while being pressed) is used. "When the lifting device extends the chain, the mowing device moves from the high position (the maximum height of the machine) to the middle position (the height when turning or reversing). Move from the middle position to the lower position (height for cutting).
In addition, when the lift switch is turned “ON” once (upward), the lifting device winds up the chain, and the cutting device moves from the low position (the height at which the cutting operation is performed) to the middle position (the height when turning or retreating). ), And further “ON” once on the ascending side, the reaping device moves from the middle position to the high position (machine maximum height).

JP 2007-44003 A

When the cutting device moves up and down by the “ON” operation of the lifting switch as described above, the operator cuts with various operation switches (cutting blade switch, blower switch) different from the lifting switch according to the lifting movement of the cutting device. It is necessary to drive and control the blade and the blower that generates the pressure air.
Specifically, the operator moves the cutting device from the middle position to the low position using the lift switch, and then drives the cutting blade and the blower using various operation switches. In addition, the operator stops the cutting blade and the blower with various operation switches, and then moves the cutting device from the low position to the middle position with the lift switch. For this reason, at the time of plucking work, forgetting to turn on the cutting blade switch or the blower switch occurs at the end of turning to move the cutting device from the middle position to the low position or at the time of resuming the cutting. Further, a complicated switch operation must be performed at the time of turning or moving backward to move the cutting device from the low position to the middle position.

  In addition, in the pruning work to prepare the cutting surface of the tea tree, before pruning and before bud elongation, a pruning device having a cutting blade for cutting pear is attached to the body instead of the pruning device, and the above plucking work Naraashi work is performed according to the same work procedure.

Therefore, even during the pruning operation, as with the plucking operation, the cutting blade switch or the blower switch may be forgotten to be turned at the end of turning to move the cutting prying device from the middle position to the low position or at the resumption of cutting. Further, a complicated switch operation must be performed at the time of turning or reversing to move the cutting apparatus from the low position to the middle position.
In addition, since the teacup operation is performed again on the teacup that has been plucked, the troublesome switch operation must be performed again for the amount of the teacup operation, and the amount of time required for one step of the teacup (the teacup operation) Min), extra work time and labor.

  The present invention proposes a tea leaf plucking machine that can eliminate troublesome switch operations associated with pear work and can reduce the work time required for pear work.

The tea leaf plucking machine according to claim 1 has a cutting blade that plucks tea leaves from a tea bowl, and a blower duct that blows out pressure air that transfers tea leaves plucked by the cutting blades to the rear side in the cutting direction. In the tea leaf plucking machine with a reaping device arranged to be raised and lowered in the machine frame,
It has the 2nd cutting blade for cutting pears driven in conjunction with the cutting blade behind the cutting direction of the cutting blade as a constituent feature.

  The tea leaf plucking machine refers to a riding type plucking machine that performs plucking work while traveling across a teacup, a riding type middle mower that performs pruning work, and a riding type middle cutting machine. The cutting blades are used for picking tea leaves from teacups (plucking work), and for adjusting the plucking surface (peeling work), when vertical moving blades (a pair of upper and lower hair clipper blades) are used, and rotating blades (畝A set of four rotary blades in the width direction may be used.

The fact that the second cutting blade for cutting pears driven in conjunction with the cutting blade is provided on the rear side in the cutting direction of the cutting blade means that the second cutting blade is at a position lower than the cutting height position of the cutting blade. Indicates that the second cutting blade is driven in conjunction with the driving of the cutting blade. In addition, moving the mowing device from the high position to the low position means moving the mowing blade that adopts the knob from the high position (the height when turning or retreating) to the low position (the height at which the mowing operation is performed). In the state where the cutting blade is positioned at the low position, the second cutting blade is positioned deeper (lower) than the plucking surface by the cutting blade.
Accordingly, when the cutting blade is driven, the second cutting blade is also driven in conjunction with it, so that there is no switch operation for driving the second cutting blade. Further, if the cutting blade is driven at a low position, the second cutting blade performs a cutting operation at a position lower than the cutting blade, that is, a plowing operation. The work is performed at the same time, and the work time can be reduced to about half compared to the conventional cutting work time in which the plucking work and the pruning work are individually performed.

The cutting blade and the second cutting blade are driven and stopped in conjunction with the lifting operation of the cutting device (Claim 2), thereby preventing the cutting blade switch from being forgotten to be turned on.
Specifically, the cutting blade and the second cutting blade are driven at any timing between the cutting device from the high position to the low position and the cutting device from the low position to the high position. (Claim 3).

  That is, the cutting blade and the second cutting blade are driven before the cutting device starts to descend from the high position to the low position, and when the cutting device is descending from the high position to the low position. There are cases where it is driven and cases where the reaping device is driven after reaching a low position. Further, the cutting blade and the second cutting blade stop when the cutting device starts to rise from the low position to the high position, and when the cutting device rises from the low position to the high position. There is a case where the cutting blade stops and a case where the cutting blade stops after the cutting device reaches a high position.

  Further, the driving and stopping of the cutting blade and the second cutting blade are linked to the blowing and stopping of the pressure wind (Claim 4), and the pressure is linked to the driving of the cutting blade and the second cutting blade. It refers to the start of the blowing of wind and the stop of blowing of pressure wind in conjunction with the stop of the cutting blade. That is, the cutting blade and the second cutting blade are driven, and the blowing of pressure air is started. Further, the cutting blade and the second cutting blade are stopped, and the blowing of the pressure air is stopped. When the blowing of pressure air is started and stopped, it is performed by driving and stopping the blower that generates the pressure wind, and when the blower remains driven, the pressure wind is released in the middle of the air duct ( Stop), air blowing may be started by opening the air intake port of the blower, and air blowing may be stopped by closing. This prevents forgetting to turn on the blower switch.

  By providing a second cutting blade driven in conjunction with the cutting blade on the rear side in the cutting direction of the cutting blade, the plucking operation with the cutting blade in one stroke of the teacup (one way) and the rustling with the second cutting blade Since the work is performed at the same time, troublesome switch operation associated with the tearing work is eliminated, and the work time required for the tearing work is greatly reduced.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

FIGS. 1A and 1B show a cutting blade 22a for picking tea leaves from a teacup, and a rear duct 22c as a blower duct for blowing out a pressure wind that transfers the tea leaves picked by the cutting blade 22a to the rear side in the cutting direction. The reaping device 22 is arranged so as to be movable up and down on the body frame 10 and moves from a low position to a high position by an ascending operation of the elevating switch 17c and moves from a high position to a low position by a descending operation of the elevating switch 17c. In the tea leaf picking machine 1 having
It is the perspective view and top view which showed the outline | summary which provided the 2nd cutting blade 22b driven in response to the cutting blade 22a in the cutting direction rear side of the cutting blade 22a.

  First, the entire tea leaf picking machine will be explained. As shown in FIGS. 2 to 3, the tea leaf plucking machine 1 includes a body frame 10, a traveling device 15, an engine 20, a blower 21, a cutting device 22, a tea leaf separation frame 70, and a container 71.

  The body frame 10 has a pair of left and right upper connection frames 13 connected between the front and rear shoulders of a front frame 11 and a rear frame 12 formed in a frontal gait type to straddle a teacup, and the front frame 11 and the rear frame 12 are connected by a pair of left and right lower connecting frames 14.

  The horizontal frame portion of the front frame 11 extending in the machine width direction includes a central fixed frame 11a and movable frames 11b and 11c supported so as to be movable forward and backward in the machine width direction at both ends in the width direction of the fixed frame 11a. . Further, the lateral frame portion of the rear frame 12 extending in the machine width direction is also provided with a fixed frame 12a at the center and movable frames 12b and 12c supported at both ends in the width direction of the fixed frame 12a so as to be movable back and forth in the machine width direction. (See FIG. 5). A rack-and-pinion type gauge expansion / contraction mechanism (hydraulic) having both ends in the width direction connected to the movable frame 11b and the movable frame 11c is fixed inside the center of the fixed frame 11a. The body frame 10 expands and contracts between the gauges according to the direction expansion and contraction operation.

A traveling device 15 is integrally assembled to the lower connection frame 14. The traveling device 15 is wound around a hydraulic motor type driving wheel 15a disposed at the front portion of the lower connecting frame 14, a driven wheel 15b disposed at the rear portion of the connecting frame 14, and the driving wheel 15a and the driven wheel 15b. Crawler 15c.
The crawler 15c may be made of rubber or iron. Moreover, you may use a wheel and a rail type instead of a crawler.

  A hydraulic oil tank 16 that stores hydraulic oil for operating various hydraulic actuators (hydraulic motor, hydraulic cylinder, etc.) mounted on the airframe is disposed between the front and rear legs of the airframe frame 10 above the traveling device 15. A fuel tank for storing fuel of the engine 20 is disposed between the front and rear legs of the body frame 10 above the other traveling device 15.

  An upper deck on which workers and heavy objects are mounted is formed on the upper surface of the body frame 10. The upper deck includes an cab 17, an operation handle 18, a cockpit 19, a hydraulic pump integrated engine 20, and a blower. 21 is arranged.

  The top panel of the cab 17 that is arranged close to one side in the width direction of the upper deck is input from various operation switches (to be described later) for controlling tea plant management work (plucking work) such as machine operation and moving up and down of the cutting device. A touch panel type (for example, an input numerical value) in which a control unit 17a1 (see FIG. 7) for outputting a control signal is incorporated into an electromagnetic valve 40 (see FIG. 7) that supplies hydraulic oil to various hydraulic actuators based on a switch signal that is generated. As such, an input operation display unit 17a for the cutting height of the cutting device 22 and the amount of expansion and contraction between the gauges is arranged (see FIG. 4).

  The control unit 17a1 is set in advance to perform posture control of the reaping device 22, such as fine reaping height control, based on detection values from various on-vehicle detection means, travel history information, input information, and the like. In addition, it has a function of storing, displaying, and transmitting via a communication line travel history information by GPS (Global Positioning System), such as travel distance information and travel speed information.

  Instead of the GPS configuration, travel distance information, travel speed information, and work contents (for example, information such as date / time / work time / weather / work location / work type / work conditions) sent from the control unit 17a1. Data) is automatically stored and stored in a control device (for example, PCL: programmable logic controller) mounted on the tea leaf picking machine 1, and stored in the control device from a personal computer connected to the control device. Sometimes data is retrieved. Thereby, it becomes possible to manage the contents of work easily without using GPS, and the cost of the tea leaf plucking machine 1 can be suppressed.

As shown in FIG. 4, the cab 17 automatically drives and stops the cutting blade 22 a, the second cutting blade 22 b (described later) and the blower 21 in conjunction with the up and down movement of the cutting device 22. The automatic mowing switch 17b to be performed, the raising / lowering switch 17c for selecting whether to raise or lower the mowing device 22, and the operation to select whether to drive or stop the mowing blade 22a and the second mowing blade 22b are selected. The cutting blade switch 17d, the blower switch 17e for selecting whether or not to drive and stop the blower 21, the ignition switch 17f for starting and stopping the engine, and the plucking operation and the pruning operation are selected. An operation changeover switch 17g and the like are arranged. The operation changeover switch 17g is provided so as not to cause an error between the display height of the input operation display unit 17a and the actual pruning height according to the work mode.
The automatic cutting switch 17b, the cutting blade switch 17d, the blower switch 17e, and the work changeover switch 17f are ON-OFF type toggle switches, and the elevating switch 17c is an (ON) -OFF- (ON) type toggle switch.

  Behind the cab 17 are disposed a T-shaped operation handle 18 in a plan view for operating the airframe and a cockpit 19 on which an operator is seated.

  The engine 20 is arranged close to the other width direction one side of the upper deck together with an engine cover provided with a plurality of ventilation holes. The engine 20 is started, driven (operated), and stopped by key operations “START”, “ON”, and “OFF” of the ignition switch 17f. Hydraulic oil is supplied to various hydraulic actuators through a solenoid valve 40 from a hydraulic pump integrated with the engine 20. The hydraulic oil sent to each hydraulic actuator is cooled by a fan-type oil cooler and then returned to the hydraulic oil tank 16.

  The blower 21 is arranged at the center in the width direction of the upper deck together with a fan cover provided with a plurality of ventilation holes. The blower 21 has a hydraulic tension clutch under the control of the control unit 17a1 using the engine 20 as a drive source. The driving (running) and stopping of the blower 21 are automatically performed when the automatic reaping switch is “ON”, and are performed by the switch operations “ON” and “OFF” of the blower switch 17e during manual operation. . When the blower 21 is driven, a pressure wind is generated that moves the tea leaves picked by the cutting device 22 toward the rear side in the cutting direction (container 71 side). The pressure air generated by the blower 21 is transferred by a flexible duct 23 connected to the blower 21.

A cutting device 22 is provided between the front frame 11 and the rear frame 12 so as to be movable up and down along the legs of the rear frame 12.
The mowing device 22 is disposed on the rear side of the mowing blade 22a in the mowing direction, and is driven in conjunction with the mowing blade 22a. Second cutting blade 22b (a hair clipper blade for cutting pears that adjusts the plucking surface) and a rear duct 22c that ejects a pressure wind that transfers the tea leaf branch plucked by the cutting blade 22a to the rear side in the cutting direction. And a transfer duct 22d for transferring the picked tea leaves to the rear side in the cutting direction (container 71 side) by upwardly pressurized air blown from the lower end opening of the rear duct 22c, and the cutting blade 22a and the second cutting blade 22b described above. And a cutting support frame 22e (see FIG. 5) extending in the width direction of the machine body.

The cutting height of the cutting device 22 is the cutting height of the cutting blade 22a, which is a cutting blade employed, and the cutting height of the cutting blade 22a is shallow and the cutting height of the second cutting blade 22b is deep. (The difference is about 30 mm).
In addition, it is arbitrary whether any of a clipper blade and a rotary blade is used for the cutting blade 22a and the second cutting blade 22b.

The cutting blade 22a is disposed on the lower side of the rear duct 22c in which the pressure air generated by the blower 21 flows from the upper side to the lower side, and on the lower side of the transfer duct 22d in which the pressure air flows from the lower side to the upper side. The cutting blade 22a is reciprocated in the body width direction by a hydraulic motor 22a1 projecting outside the body. In addition, the second cutting blade 22b for cutting pear is also reciprocated in the body width direction by a hydraulic motor 22b1 projecting outside the body. When the hydraulic motor 22b1 is driven in conjunction with the hydraulic motor 22a1, the second cutting blade 22b is driven in conjunction with the cutting blade 22a. By projecting these hydraulic motors 22a1 and 22b1 to the outside of the machine body, a cutting blade (for example, 1900 mm) wider than the tea tree width (for example, 1800 mm) can be used, and uncutting is prevented.
Further, the hydraulic motors 22a1 and 22b1 may be protected by a guard disposed outside each motor.

  A priority valve as a flow rate priority take-off valve is interposed in an oil passage connecting the hydraulic motors 22a1, 22a2 and the hydraulic pump of the engine 20. The priority valve is a valve that can always give priority to the constant hydraulic pressure (flow rate) regardless of the hydraulic pressure (pump flow rate) discharged by the hydraulic pump. The hydraulic pressure at which the cutting blade speed is always obtained is supplied to the hydraulic motors 22a1 and 22b1. For this reason, when the engine speed is increased, the pressure wind generated by the blower 21 is increased, but the cutting blade speed is not increased, and the cutting blade speed corresponding to the cutting operation is always maintained.

  The rear duct 22c is provided along the rear surface portion of the transfer duct 22d on the rear side in the cutting direction of the cutting blade 22a. The rear duct 22c has a turning member 22c1 using an angle or the like for sending downward pressure air taken into the rear duct 22c into the transfer duct 22d as upward pressure air at its lower end opening. . The upper surface of the rear duct 22 c is connected to a flexible duct 23 connected to the blower 21, and the pressure air generated by the blower 21 is ejected toward the first cutting blade 22.

  The center part 22d1 of the transfer duct 22d can be expanded and contracted in the vertical direction by a double pipe structure. Further, when the container 71 is pivoted forward toward the rear of the fuselage, the duct upper portion 22d2 is separated from the central portion 22d1, and the container 71 is returned to the original state, the duct 71 The upper part 22d2 is joined to the central part 22d1.

As shown in FIG. 5, the cutting support frame 22e includes a central fixed frame 22e1, and movable frames 22e2 and 22e3 supported so as to be movable forward and backward in the width direction of the vehicle body at both ends in the width direction of the fixed frame 22e1. The outer end portions of the movable frame 22e2 and the movable frame 22e3 are connected to a pair of left and right first elevating bodies 24 provided so as to be movable up and down along the leg portions of the rear frame 12. Between the left and right first elevating bodies 24, there is disposed an automatic center mechanism unit 25 that accurately aligns the center in the width direction of the cutting blade 22a and the like with the center of the gauge of the left and right traveling devices 15.
The first elevating body 24 supports the container 71 so as to be detachable from the lower side, and the tea leaf separating frame 70 and the container 71 are moved up and down together with the reaping device 22 in accordance with the elevating operation of the first elevating body 24. To do.

  As shown in FIG. 5, the cutting support frame 22e has lower ends of a pair of left and right chains 26a and 26b that are fed out synchronously from an elevating device 26 that is driven and controlled by a control unit 17a1 according to the switch operation of the elevating switch 17c. Are respectively locked, and the cutting device 22 is lowered by feeding the chains 26a and 26b, and the cutting device 22 is raised by winding the chains 26a and 26b.

  The lifting device 26 has a hydraulic cylinder 26c. The hydraulic cylinder 26c is fixed to the fixed frame 12a of the rear frame 12, and the sprocket 26f around which the chains 26a and 26b are wound is rotated around the cylinder end 26e at the tip of the telescopic rod 26d of the hydraulic cylinder 26c. It is supported freely.

  One end of the chain 26a is fixed to the fixed frame 12a, an intermediate portion is wound around a sprocket 26f and a sprocket 26g rotatably supported by the fixed frame 12a, and the other end (lower end) is supported by cutting. The frame 22e is locked to the fixed frame 22e1.

  One end of the chain 26b is fixed to the fixed frame 12a (shown in FIG. 5 in a state where it is overlapped with the chain 26a), an intermediate portion is sprocket 26f, a sprocket 26h rotatably supported by the fixed frame 12a, and It is wound around the sprocket 26i, and the other end (lower end) is locked to the fixed frame 22e1 of the cutting support frame 22e.

  Accordingly, when the cylinder head 26e is moved to the cylinder side by the hydraulic cylinder 26c, the chains 26a and 26b are wound up and the cutting support frame 22e (the cutting device 22) is raised. Further, when the cylinder head 26e moves to the non-cylinder side, the chains 26a and 26b are drawn out, and the cutting blade support frame 22e (the cutting device 22) is lowered.

  Further, one end portion of a chain 26k wound around a potentiometer (sprocket) 26j for detecting a cutting height supported rotatably on the fixed frame 12a is fixed to the cylinder head 26e. The other end of the chain 26k is fixed to the fixed frame 12a via a spring 26m that urges the other end of the chain 26k toward the non-cylinder side. Thereby, the moving amount of the cylinder head 26e, that is, the cutting height of the cutting device 22 (cutting blade 22a) is accurately detected by the potentiometer 26j. The detection value detected by the potentiometer 26j is input to the control unit 17a1 (which may be a sequencer) and used for driving control of the lifting device 26.

  Further, between the fixed frame 12a and the movable frame 12c, there is a gauge width detecting potentiometer (sprocket) 26n supported rotatably on the fixed frame 12a and a chain 26q wound around the sprocket 26p in an s-shape. Arranged. One end of the chain 26q is fixed to the movable frame 12c, and the other end is fixed to the fixed frame 12a via a spring 26r that urges one end of the chain 26q toward the non-cylinder side. As a result, the amount of movement of the movable frame 12c, that is, the amount of expansion / contraction between the gauges is accurately detected by the potentiometer 26n, and the detected value is input to the control unit 17a1 (which may be a sequencer) to be used for drive control of the gauge expansion / contraction mechanism. The

  As described above, the mowing device 22 (the cutting blade 22a) is positioned by the control unit 17a1 based on the detected value (rotation angle) detected by the potentiometer (sprocket) 26j around which the chain 26k is wound. This is performed by driving and controlling the lifting device 26 so that the cutting device 22 (cutting blade 22a) is positioned at a cutting height set in advance via the display unit 17a. In addition to the above-described potentiometer 26j, mechanical and optical detection means may be used to detect the cutting height position of the cutting device 22 (cutting blade 22a).

Here, the cutting height setting will be described.
The high position is a height that is used when the mowing device 22 is separated from the mowing surface, and is generally a height setting for passing the teacup that is used when turning or retreating. The low position is the final finish, ie the cutting height in each operation. The height setting value here is automatically stored and stored in the memory of the control unit 17a1.

  When the ignition switch 17f is turned on, the work changeover switch 17g is plucked (upper side) when plucking work is performed, and the work changeover switch 17g is pruned (lower side) when pruning work is performed. Then, the input operation display part 17a switches to the cutting height display and gauge width display screen of the cutting device 22, as shown to Fig.6 (a). When the numerical value portion of the cutting height display is pressed on this display screen, the screen is switched to the first setting screen shown in (b). When the numerical value portion of the cutting height display on this screen is pressed, the screen changes to the second setting screen shown in (c).

  Move the cursor to the digit you want to change with the cursor movement keys “>” and “<”, and change the set value with the lower limit keys “+” and “-”. When the change is completed, press the “OK” key. Repeat this operation to set the high and low cut heights. When all the settings are completed and the screen (b) is displayed, the “ESC” key in the upper right of the screen is pressed to return to the screen (a).

The position of the reaping device 22 is confirmed by the reaping position display lamps 17h and 17i arranged close to the input operation display unit 17a. Specifically, when the reaping device 22 is at a position higher than the high position setting, the high lamp 17h blinks, and when it is at the high position setting value, the high lamp 17h is lit. When the reaping device 22 is located between the high position and the low position, the high and low lamps 17h and 17i blink, and when the reaping device 22 is at the set value for the low position, the low lamp 17i is lit and the low position When the position is lower than the setting, the low lamp 17i blinks.
The cutting height setting has been described above.

The tea leaf separation frame 70 separates the tea leaf transferred from the transfer duct 22d from the pressure wind and drops it into the container 71 on the lower side.
The both sides of the container 71 in the width direction are connected to a pair of left and right second lifting bodies 27 provided so as to be movable up and down along a pair of left and right extension frames 12 c extending upward from the legs of the rear frame 12. The tea leaf separation frame 70 and the container 71 are moved up and down integrally in accordance with the lifting operation of the second lifting body 27.

  The second elevating body 27 is moved up and down by a pair of left and right hydraulic cylinders 28 that are driven and controlled by the control unit 17a1. The hydraulic cylinders 28 are arranged vertically on both sides of the container 71 in the width direction, and an idler is rotatably supported by an intermediate frame 29 connected to the rod. A chain 33 having one end connected to the container 71 and the other end fixed to the body frame 10 is wound around the idler. As a result, when the intermediate frame 29 rises as the hydraulic cylinder 28 extends, the tea leaf separation frame 70 and the container 71 rise integrally, and when the intermediate frame 29 descends as the hydraulic cylinder 28 shortens, the tea leaf separation frame 70 and The container 71 is lowered integrally.

  Below the container 71, an inclined link mechanism 30 having a hydraulic cylinder 30a that rotates the container 71 in a forward-tilting manner toward the rear side in the cutting direction is disposed.

  The rear surface of the container 71 is a flip-up type discharge door 71a. The discharge door 71a is opened and closed by an open / close interlock mechanism 32 that operates in conjunction with the container 71 rotating toward the rear side in the cutting direction. The open / close interlock mechanism 32 includes a gas spring that constantly urges the discharge door 71a in the opening direction, a plurality of sprockets 32a and 32b that are rotatably supported by the bottom of the container 71 and the container support frame 72, and the like. A chain 32c stretched between the container support frame 72 and the discharge door 71a in a state of being engaged with the sprockets 32a, 32b and the like.

Next, the cutting control of the control unit 17a1 will be described.
In the control unit 17a1, the central control unit (control unit) performs cutting control by executing various application programs that are firmwareized by the ROM. As shown in FIG. 7A, the control unit 17a1 receives a switch signal from the automatic reaping switch 17b, and determines whether the automatic reaping switch 17b is “ON” or “OFF”. The control unit a1 receives switch signals from the lifting switch 17c, the cutting blade switch 17d, and the blower switch 17e, and determines whether the lifting switch 17c is "up", "down", or "cut". Whether the switch 17d is “ON” or “OFF” is determined, and whether the blower switch 17e is “ON” or “OFF”.

  The control unit 17a1 determines the height position of the cutting device 22, the driving state of the cutting blade 22 and the operating state of the blower 21 based on the input switch signal from the automatic cutting switch 17b, and according to the determination result. Control signals for controlling the driving (operation) and stop of various actuators are output to the electromagnetic valve 40, the hydraulic motor 22a1 of the cutting blade 22a, the hydraulic motor 22b1 of the second cutting blade 22b, and the cylinder of the lifting device 26 26c is driven (run) and stopped.

Specifically, in the control unit 17a1, the automatic reaping switch 17b is in the “on” state, the reaping device 22 is positioned at a high position, the cutting blade 22a and the like are in a stopped state, and the blower 21 is in an operation stopped state. For example, the mowing device 22 may be lowered, and the mowing blade 22a, the second mowing blade 22b, and the blower 21 may be driven after the mowing device 22 reaches a low position.
Further, the control unit 17a1 is configured to cut the mowing device 22 while the mowing device 22 is being lowered when the automatic mowing switch 17b is in the “ON” state, the mowing blade 22a is stopped, and the blower 21 is in the operation stopped state. The blade 22a, the second cutting blade 22b, and the blower 21 may be driven.
Further, the control unit 17a1 first drives the cutting blade 22a and the second cutting blade 22b when the automatic cutting switch 17b is in the “ON” state, the cutting blade 22a and the like are in a stopped state, and the blower 21 is in an operation stopped state. In some cases, the blower 21 is driven, and then the reaping device 22 is moved down to place the reaping device 22 in a low position.

Further, the control unit 17a1 cuts the cutting if the automatic cutting switch 17b is in the “cut” state, the cutting device 22 is in the low position, the cutting blade 22a and the like are in the driving state, and the blower 21 is in the operating state. The device 22 is moved up, and the cutting blade 22a, the second cutting blade 22b, and the blower 21 may be stopped after the cutting device 22 reaches the high position.
In addition, the control unit 17a1 determines that the automatic mowing switch 17b is in the “cut” state, the mowing device 22 is in the low position, the mowing blade 22a and the like are in the driving state, and the blower 21 is in the operating state. In some cases, the drive of the cutting blade 22a, the second cutting blade 22b, and the blower 21 may be stopped while the 22 is being lifted.
In addition, the control unit 17a1 has a cutting blade if the automatic cutting switch 17b is in the “cut” state, the cutting device 22 is in the low position, the cutting blade 22a and the like are in the driving state, and the blower 21 is in the operating state. In some cases, the cutting device 22 is lifted after the driving of the second cutting blade 22b, the second cutting blade 22b, and the blower 21 is stopped.

That is, the cutting blade 22a, the second cutting blade 22b, and the blower 21 are driven in conjunction with the downward movement of the cutting device 22, and the cutting blade 22a, the second cutting blade 22b, and the blower 21 are stopped in conjunction with the upward movement. By doing so, the cutting blade switch 17d and the blower switch 17e are moved at the end of turning or when the cutting is resumed to move the cutting device 22 from the high position (the height at the time of turning or retreating) to the low position (the height at which the cutting operation is performed). The “ON” operation is no longer performed, and forgetting to turn on the cutting blade switch 17d or the blower switch 17e does not occur. Further, the cutting blade switch 17d and the blower switch 17e are “cut” during turning and when the cutting device 22 is moved from a low position (height for cutting work) to a high position (height during turning and backward movement). Since there is no operation, there is no complicated switch operation when turning or reversing.
The order of driving (running) and stopping of the cutting blade 22a, the second cutting blade 22b, and the blower 21 is arbitrary.

An example of cutting control (automatic cutting and manual cutting) in the control unit 17a1 will be described with reference to the flowchart shown in FIG.
In addition, the drive of the air blower 21 refers to generation | occurrence | production of the pressure wind by the air blower 21. FIG.

  In step 10, it is determined whether or not the automatic reaping switch 17b has been operated. If it is determined that the automatic reaping switch 17b has been operated “ON”, the process proceeds to step 30;

[Automatic cutting control]
In step 30, it is determined whether or not the reaping device 22 is located at a high position (the height when turning or retreating). If it is determined that the reaping device 22 is located at a high position, the process proceeds to step 31 and the reaping device 22 is reached. If it is determined that is not located at the high position, that is, located at the low position, the process returns to step 10.

In step 31, it is determined whether or not the cutting blade 22a and the second cutting blade 22b are stopped. If it is determined that the cutting blade 22a is stopped, the process proceeds to step 32, and it is determined that the cutting blade 22a and the second cutting blade 22b are not driven. Then, the process returns to step 10.
In step 32, it is determined whether or not the blower 21 is stopped. If it is determined that the blower 21 is stopped, the process proceeds to step 33. If it is determined that it is not stopped, that is, is driven (running), the process returns to step 10. To do.
In addition, the order of the determination content in step 30 to step 33 is arbitrary.

In step 33, the elevating device 26 is driven to move (lower) the reaping device 22 from the high position (the height when turning or retreating) to the low position (the height at which the reaping operation is performed). In the next step 34, it is determined whether or not the reaping device 22 is located at the low position. If it is determined that the reaping device 22 is not located at the low position, the process returns to step 33. 35.
In step 35, the cutting blade 22a and the second cutting blade 22b are driven, and the process proceeds to the next step 36 to drive the blower 21. Thereafter, the process returns to step 10.

Steps 33 to 36 are cases where the cutting blade 22a, the second cutting blade 22b, and the blower 21 are driven after the cutting device 22 reaches the low position. The order of the control contents in Step 33 to Step 36 is as follows. Arbitrary (however, step 33 precedes step 34). Specifically, step 33, step 35, step 36, and step 34 may be set. In this case, the cutting blade 22a, the second cutting blade 22b, and the blower 21 are driven when the cutting device 22 is descending from the high position toward the low position.
In some cases, Step 35, Step 36, Step 33, and Step 34 are used. In this case, the cutting blade 22a, the second cutting blade 22b, and the blower 21 are driven before the cutting device 22 starts to descend from the high position toward the low position.
Further, the order of step 35 and step 36 may be interchanged.

  If it is determined in step 10 that the automatic reaping switch 17b has been “cut”, it is determined in step 20 whether or not the reaping device 22 is located at a low position (the height at which the reaping operation is performed). If it is determined that the position is in the low position, the process proceeds to step 21, and if it is determined that the reaping device 22 is not positioned in the low position, the process proceeds to step 40 where the manual reaping control flow is started.

In Step 21, it is determined whether or not the cutting blade 22a and the second cutting blade 22b are driven. If it is determined that the cutting blade 22a and the second cutting blade 22b are driven, the process proceeds to Step 22, and the cutting is performed. When it is determined that the blade 22a and the second cutting blade 22b are not driven, the routine proceeds to step 40.
In step 22, it is determined whether or not the blower 21 is driven (running). If it is determined that the blower 21 is driven, the process proceeds to step 23. If it is determined that the blower 21 is not driven, the process proceeds to step 40. Transition.
In addition, the procedure of the determination content of step 20-step 22 is arbitrary.

In step 23, the elevating device 26 is driven to move (lift) the reaping device 22 from the low position (the height at which the reaping operation is performed) to the high position (the height when turning or retreating).
In step 24, it is determined whether or not the reaping device 22 is located at a high position. If it is determined that the reaping device 22 is not located, the process returns to step 23. If it is determined that the reaping device 22 is located at a high position, the process proceeds to step 25.

  In step 25, the cutting blade 22a and the second cutting blade 22b are stopped, the process proceeds to the next step 26, and the blower 21 is stopped. Thereafter, the process returns to step 10.

Steps 23 to 26 are cases where the cutting blade 22a, the second cutting blade 22b, and the blower 21 are stopped after the cutting device 22 reaches the high position. The order of the control contents in Step 23 to Step 26 is as follows. It is optional (however, step 23 precedes step 24). Specifically, step 23, step 25, step 26, and step 24 may be set. In this case, the cutting blade 22a, the second cutting blade 22b, and the blower 21 are stopped when the cutting device 22 is rising from the low position toward the high position.
In some cases, Step 25, Step 26, Step 23, and Step 24 are used. In this case, the cutting blade 22a, the second cutting blade 22b, and the blower 21 are stopped before the cutting device 22 starts to rise from the low position toward the high position.
Further, the order of step 25 and step 26 may be interchanged.

In addition, if the automatic reaping switch 17b is turned “on” and the automatic reaping switch is once turned “cut” while the reaping device 22 is moving from the high position to the low position, the raising of the reaping device 22 stops. . Moreover, even if it is "entered" again, the cutting device 22 does not rise. In this case, the reaping device 22 is once manually returned to the high position and then automatically reaped.
Further, when the automatic cutting switch 17b is in the “on” state, after the cutting blade 22a, the second cutting blade 22b, and the blower 21 are driven, the lift switch 17c, the cutting blade switch 17d, and the blow switch 17c are driven. Is moved up or down, the cutting blade 22a, the second cutting blade 22b, and the blower 21 are stopped. Further, the cutting blade 22a, the second cutting blade 22b, and the blower 21 do not operate even when the automatic cutting switch 17b is turned “on” again. In this case, the cutting blade 22a, the second cutting blade 22b, and the blower 21 are not driven unless the cutting device 22 is once manually returned to the high position.

[Manual cutting control]
A case where the process proceeds from step 20 to step 23 to step 40 will be described. In step 40, it is determined whether or not the up / down switch 17c has been operated "up" or "down". If it is determined that the up / down switch 17c has been operated “up”, the process proceeds to step 41. If it is determined that the up / down switch 17c has been operated “down”, the process proceeds to step 50. If neither “up” operation nor “down” operation is performed, the process returns to step 10.

  In step 41, it is determined whether or not the reaping device 22 is located at a low position (the height at which the reaping operation is performed). If it is determined that the reaping device 22 is located at a low position, the process proceeds to step 42, and the reaping is performed. If it is determined that the device 22 is not located at the low position, that is, located at the high position (the height when turning or retreating), the routine proceeds to step 44.

In step 42, the elevating device 26 is driven to move (lift) the reaping device 22 from the low position (the height at which the reaping operation is performed) to the high position (the height when turning or retreating).
In step 43, it is determined whether or not the reaping device 22 is located at the high position. If it is determined that the reaping device 22 is not located at the high position, the process returns to step 43. If it is determined that the reaping device 22 is located at a high position, the process proceeds to step 44.

  In step 44, it is determined whether or not the cutting blade switch 17d has been “entered”. If it is determined that the cutting blade switch 17d has been “entered”, the process proceeds to step 45, where the cutting blade 22a and the second cutting blade are operated. 22b is driven. When it is determined that the cutting blade switch 17d has been “cut”, the routine proceeds to step 46, where the cutting blade 22a and the second cutting blade 22b are stopped.

In step 47, it is determined whether or not the blower switch 17e has been operated. If it is determined that the blower switch 17e has been operated, the process proceeds to step 48 and the blower 21 is driven. Thereafter, the process returns to step 10.
On the other hand, if it is determined that the blower switch 17e has been “turned off”, the process proceeds to step 49 and the blower 21 is stopped. Thereafter, the process returns to step 10.

  If it is determined in step 40 that the elevating switch 17c has been operated to "down" and the process proceeds to step 50, in step 50, is the reaping device 22 positioned at a high position (the height when turning or retreating)? If it is determined that the cutting device 22 is not positioned at the high position, that is, if it is determined that the cutting device 22 is positioned at the low position, the process proceeds to step 44.

In step 51, the elevating device 26 is driven to move (lower) the reaping device 22 from the high position (the height when turning or retreating) to the low position (the height at which the reaping operation is performed). In the next step 52, it is determined whether or not the reaping device 22 is in the low position. If it is determined that the reaping device 22 is not in the low position, the process returns to step 51. 44.
The manual cutting control has been described above.

  Note that the flowchart shown in FIG. 7 is an example, and the increase / decrease of the step and the addition of the subroutine are arbitrary.

(A) is the perspective view which showed the outline | summary in which the 2nd cutting blade was provided in the cutting direction rear side of the cutting blade, (b) is the top view of (a). It is a front view of a tea leaf picking machine. FIG. 3 is a side view of FIG. 2. It is a figure for demonstrating the upper surface panel of a driver's cab. It is a figure for demonstrating the outline | summary of a raising / lowering apparatus. (A) is a cutting height display and gauge width display screen of the cutting device, (b) is a first setting screen, and (c) is a second setting screen of the input operation display unit. (A) is the block diagram which showed the outline | summary of the cutting control by a control unit, (b) is the flowchart which showed the procedure of the automatic cutting control and manual cutting control performed by a control unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Tea leaf picking machine 10 ... Airframe frame 17 ... Driver's cab, 17a ... Input operation display part, 17a1 ... Control unit, 17b ... Automatic cutting switch, 17c ... Lifting switch, 17d ... Cutting blade switch, 17e ... Blower switch 21 ... Blower DESCRIPTION OF SYMBOLS 22 ... Cutting device, 22a ... Cutting blade, 22b ... 2nd cutting blade, 22c ... Back surface duct (blower duct), 22d ... Transfer duct, 22e ... Cutting support frame 26 ... Lifting device

Claims (4)

A cutting device arranged to be movable up and down on the body frame in a state having a cutting blade for picking tea leaves from a teacup and a blower duct for blowing out a pressure wind for transferring the tea leaves picked by the cutting blade to the rear side in the cutting direction In the tea leaf picking machine with
A tea leaf plucking machine having a second cutting blade for cutting pear that is driven in conjunction with the cutting blade on the rear side in the cutting direction of the cutting blade.   2. The tea leaf plucking machine according to claim 1, wherein the cutting blade and the second cutting blade are driven and stopped in conjunction with a lifting operation of the cutting device.   The cutting blade and the second cutting blade are driven at any timing between the cutting device reaching from the high position to the low position, and the cutting blade from the low position to the high position. The tea leaf picking machine according to claim 2, wherein the tea leaf picking machine stops at any timing. 2. The tea leaf plucking machine according to claim 1, wherein the driving and stopping of the cutting blade and the second cutting blade are linked to the blowing and stopping of the pressure air.

Images