JP4891588B2 - Tea leaf picking device - Google Patents

Description

  The present invention relates to a tea leaf plucking device, and more particularly to a tea leaf plucking device mounted on a tea leaf management machine.

  For example, in Patent Document 1, a rotating brush is disposed so as to be rotatable along the longitudinal direction of the cutting blade above the two upper and lower cutting blades that reciprocate in the width direction of the teacup. A blower nozzle that blows out airflow toward the entrance of the transport duct connected to the container that houses the tea leaves and branches (hereinafter referred to as “plucked tea leaf branches”) cut by the cutting blades from the tea tree is arranged behind the brush. There has been proposed a tea leaf plucking device configured to transfer a tea leaf branch backward by a rotating operation of a rotating brush and then send the tea leaf branch into a transport duct by an air flow ejected from an air blowing nozzle.

However, in the above-described conventional tea leaf plucking device, the rotating brush has a brush portion (yarn portion) planted with no gap along the tip of two blades integrally formed along the longitudinal direction of the rotating shaft. It is installed. For this reason, there is a problem that the picked tea leaf branch and the rotating brush are not separated from each other, and it is difficult to smoothly transfer the picked tea leaf branch into the transport duct behind the rotating brush. In particular, when the plucking condition is long shoots (plucked buds are about 300 to 400 mm or more in the autumn season), the tea leaves branch is easily entangled with the brush part and the rotating shaft, and the brush part and the rotating shaft are picked. If the tea leaves are tangled, not only smooth cutting and transfer to the transport duct are performed, but also the picked tea leaf branch entangled with the brush part and the rotating shaft may be thrown out toward the front of the cutting blade.
Furthermore, when it is raining, there is a problem that wet plucked tea leaves tend to accumulate on the support frame of the cutting blade, and the plucking operation cannot be performed smoothly.

Japanese Patent Laying-Open No. 2003-284418 (FIG. 4)

  Accordingly, the present invention has been made to solve the above-described problems of the prior art, and provides a tea leaf plucking device capable of smoothly cutting a plucked tea leaf branch and transferring it to the container side. The purpose is to do.

In order to achieve the above object, the first invention is mounted on a traveling machine that travels across a teacup and extends in the width direction of the teacup so as to pluck tea leaves and branches from the teacup. A tea leaf plucking apparatus comprising a cutting blade and a rotating body and a blower nozzle for transferring the plucked tea leaf branch plucked by the cutting blade toward the container,
The rotating body is provided above the cutting blade so as to be rotatable along the longitudinal direction of the cutting blade, and the air blowing nozzle is disposed in front of the rotating body toward the substantially lower side of the rotating body. is provided so as to eject said rotating body, said space capable of passing an air flow toward the container-side is formed is formed on Rutotomoni front view crank type, wherein the rotation of said rotary member The pruned tea leaf branch plucked from the teacup by the cutting blade is transferred toward the container side in cooperation with the air flow ejected from the blower nozzle.

According to the first invention, the picked tea leaf branch plucked from the tea tree by the cutting blade is rotated and allows the air flow ejected from the blowing nozzle to pass toward the container side in any state. And the air flow from the blower nozzle ejected from the front of the rotating body toward the rotating body, it is easily separated from the cutting blade and attached to the cutting blade support frame. Is immediately beaten by the rotating body and then transferred toward the container by the air flow. Thereby, the tea leaf plucking apparatus which can carry out the smooth cutting of the plucked tea leaf branch and the container side can be provided. In addition, since the rotating body is formed in the front-view crank shape, when the rotating body formed in the front-view crank shape rotates, the rotating body is separated from the cutting blade to the maximum extent, that is, the rotating body In a state of being positioned almost immediately above the virtual rotation center axis, a larger space is formed between the rotating body and the cutting blade. Further, even when the rotating body is closest to the cutting blade, a space is formed between the rotating body and the virtual rotation center axis. As a result, in addition to the operational effects of the first or second invention, it can be more smoothly and efficiently transferred toward the container without entangled with the picked tea leaf branch on the rotating body or the rotating shaft. The plucking speed can be improved compared to the conventional case. In addition, many plucking conditions can be handled.

  In order to achieve the above object, according to a second invention, in the first invention, the rotating body is provided in one direction from a rotation center axis of the rotating body.

  According to the second invention, when the rotating body provided in one direction from the rotation center axis rotates, the rotation body is maximally separated from the cutting blade, that is, approximately the rotation center axis of the rotation body. In the state located immediately above, a large space is formed between the rotating body and the cutting blade. Thereby, even if it is a plucking condition which makes a plucked tea leaf branch into a long bud, it can be smoothly conveyed toward the container side, without making a plucked tea leaf branch entangled with a rotary body or a rotating shaft. Further, it is possible to prevent the plucked tea leaf branch from being thrown out toward the front of the cutting blade.

In order to achieve the above object, according to a third invention, in the first or second invention, the rotating body is a rotating brush.

According to the third invention, the rotating brush is used as the rotating body. Thereby, in addition to the effect of 1st or 2nd invention, the plucking tea leaf apparatus can be comprised at low cost.

In order to achieve the above object, according to a fourth invention, in the third invention, the rotating brush has a plurality of brush portions forming a part of the space portion with a predetermined interval set in advance. It is characterized by being.

According to 4th invention, even if it hits a rotating brush, the airflow injected from a ventilation nozzle flows toward the container side from the space part between mutually adjacent brush parts. Thereby, in addition to the effect of 3rd invention, a picked tea leaf branch can be reliably and stably transferred toward the container side, and the accommodation efficiency of a picked tea leaf branch can be improved significantly.

  Plucking is performed by the rotating operation of the rotating body provided above the cutting blade so as to rotate along the longitudinal direction of the cutting blade and the air flow of the blowing nozzle ejected from the front of the rotating body toward the rotating body. The tea leaf branch can be smoothly cut and transferred to the container without the tea leaf branch being entangled with the cutting blade or the rotating shaft or collecting on the support frame of the cutting blade.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
1 is a front view of a tea leaf management machine equipped with the tea leaf plucking device of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a front view of a tea leaf plucking device in which the air duct is omitted in the same example, FIG. 4 is a front view of the tea leaf plucking device in a state where the rotating brush is located above in the same example, FIG. 5A is a side view of the tea leaf plucking device in a state where the rotating brush is located below, (B) is a side view of the tea leaf plucking device in a state where the rotating brush is located on the container side, (c) is a side view of the tea leaf plucking device in a state where the rotating brush is located above, and FIG. The side view which showed the drive part of the rotating brush in the example, FIG. 7 (a) is a front view of a rotating brush, (b) is a side view of a rotating brush.

A tea leaf management machine equipped with the tea leaf picking apparatus of the present invention will be described.
As shown in FIGS. 1 and 2, the tea leaf management machine 10 uses a riding-type aspect, and is located at a position facing the teacup of the traveling machine body 11 that runs while straddling the teacup (on the lower side of the center). , A cutting blade 41 for plucking tea leaves (including branches and stems) from the teacup, and a container (for example, tea bag, container) side for containing plucked tea leaves plucked from the teacup by the cutting blade 41 A tea leaf plucking device 40 including a rotating brush 42 and a blower nozzle 43 as a flexible rotating body for transferring toward the water is provided.
Instead of the configuration of the rotating brush 42, for example, a rotating rubber plate can be used, but is not limited thereto.

  First, the traveling machine body 11 will be described. The traveling machine body 11 has a front frame 12 and a rear frame 13 that are formed in a frontal gait type to travel while straddling a teacup, and a pair of left and right upper and lower connections that connect the front and rear frames 12 and 13. Frames 14 and 15 (however, only the right side is shown in FIG. 2 and so on) are configured. The front and rear frames 12 and 13 are opposed to each other in a state of being separated from each other in the longitudinal direction of the machine body, and a right and left split structure is used so that the gauge can be expanded and contracted in the lateral direction of the machine body. And the hydraulic type gauge expansion-contraction cylinder 16 which makes these front side and rear side frames 12 and 13 synchronize and extend between gauges is provided in the front side of the front side and the rear side frames 12 and 13, respectively.

  A pair of left and right lower connecting frames 15 extending in the longitudinal direction of the machine body are integrally coupled to the lower ends of the left and right legs of the front frame 12 and the lower ends of the left and right legs of the rear frame 13, respectively. It is fixed. These lower connection frames 15 are provided with a hydraulic traveling device 20 in which a crawler 19 is wound between a driving wheel 17 and a driven wheel 18. Above each traveling device 20, a hydraulic tank 21 for supplying hydraulic pressure to the hydraulic actuator and a fuel tank 22 for supplying fuel to a drive source described later are attached and fixed. In addition, the traveling apparatus 20 is not limited to the one using the crawler 19, and may be one using a wheel, a rail type, or the like, for example.

  In addition, a pair of left and right upper connecting frames 14 that are inclined in the front-rear direction of the fuselage are integrally coupled and fixed to the left and right bent portions (shoulders) of the front frame 12 and the left and right bent portions of the rear frame. ing. Further, a horizontal frame (not shown) that does not follow the trajectory expansion / contraction operation of the traveling machine body 11 is installed between the upper connection frames 14, and the horizontal frame and the front frame 12 are connected to each other. A plate-like floor member 23 is stretched between them.

  The floor member 23 is disposed in the right front part of the machine body, and a control unit 24 is disposed in front of the floor member 23. Adjacent to the control unit 24, an engine unit 25 is disposed on the left front portion of the body, and a blower unit 26 is disposed on the front center of the body. In addition, on the upper part of the rear frame 13 behind the steering unit 24, the engine unit 25, and the blower unit 26, upper and lower two-stage load receiving members 27, 28 formed by pipe members are respectively provided via arm members 29, 30. It is mounted and supported so as to be horizontally rotatable so that it can be manually and individually projected to the rear.

  The control unit 24 is a touch panel type (for example, cutting height, gauge expansion / contraction amount, etc. as input numerical values) in which a control unit as a control means for performing machine operation and tea leaf plucking work is incorporated, An ignition switch, an operation changeover switch (not shown) for preventing an error between the display height of the input operation display unit and the actual cutting height are provided according to the work mode. Further, the control unit of the control unit 24 performs various controls of the cutting blade 41 based on detection values, travel history information, input information, and the like from various on-vehicle detection means, such as fine height control and cutting blade drive control. It is possible to store and display travel history information by GPS (Global Positioning System, navigation system), such as travel distance information and travel speed information, and send it via a communication line. The function is provided.

  Instead of the GPS configuration, travel distance information, travel speed information and work contents (for example, information data such as date / time / work time / weather / work place / work type / work conditions) sent from the control unit ) Can be automatically stored and stored in a control device (for example, PCL: programmable logic controller) (not shown) mounted on the tea leaf picking machine 10. Then, by connecting the control device and the personal computer, the information data stored and stored in the control device is extracted from the personal computer. Thereby, it becomes possible to easily manage the contents of work without using GPS, and the price increase of the tea garden plucking machine 10 can be suppressed.

  Behind the control unit 24, there are provided a control seat 31, on which an operator sits and performs machine operation and tea leaf picking work, a T-shaped operation handle 32 in front view, and various machine operation levers (not shown). . At the feet of the cockpit 31, a hydraulic pump 33 for cutting blade driving, traveling driving, raising / lowering driving, and extension / contraction between gauges is disposed.

  In the engine unit 25, an engine (not shown) as a power source of the traveling machine body 11 is housed and disposed in a box-type engine cover 34 having a vent hole. A hydraulic pump 33 is integrated with this engine, and the hydraulic pump 33 is driven by engine power.

  In the blower section 26, a turbofan blower 35 that is belt-driven by an engine is disposed behind a protective cover 36 having a vent hole. The blower 35 is switched on and off by a switching lever (not shown) disposed on the control unit 24 side, and the blower 35 guides the generated wind (air flow) to the tea leaf pruning device 40. A telescopic air duct 37 is connected.

  Next, the tea leaf plucking device 40 will be described. As shown in FIGS. 1 to 7, the tea leaf plucking device 40 is attached to the traveling machine body 11 so as to be easily detachable and adjustable using a knob bolt, a detachable pin, and the like. A cutting blade 41, a rotating brush 42, a blower nozzle 43, and a plucking machine frame 44 are provided.

  The plucking machine frame 44 extends in the bowl width direction of the teacup and is provided with two square pipes 45 that are spaced apart from each other so as not to interfere with the rotating brush 42 that rotates (see FIG. 6). The left and right ends of the upper frame 46 and the cutting blade support frame 47 as a plate-like lower frame extended in the bowl width direction so as to form the bottom surface of the plucking machine frame 44, By being connected by a pair of left and right plate-like side portions 48, the front and rear are opened. Further, a cylindrical mounting stay 49 (see FIGS. 3 and 6) for attaching and fixing the plucking machine frame 44 to the traveling machine body 11 is integrally formed at both left and right ends of the upper frame 46 so as to extend in the longitudinal direction of the machine body. Provided.

  Insertion portions (not shown) inserted into and removed from these attachment stays 49 are respectively provided on left and right lifting members 50 (shown in FIG. 2) that move up and down along the left and right leg portions of the rear frame of the traveling machine body 11. Yes. Also, between these elevating members 50, an automatic center mechanism (not shown), which performs accurate alignment of the center of the cutting blade 41 with the center of the gauge of the left and right traveling devices 20 (Japanese Patent Application No. 2003-362170 “tea garden” by the present applicant). Ride-on-type work machine ") is assembled. Further, the automatic center mechanism is provided with lower ends of a pair of left and right chains that are attached to the upper portion of the rear frame 13 and fed out synchronously from a hydraulic winding device (not shown) that is driven and controlled by a control unit. The left and right elevating members 50 can be moved up and down synchronously by feeding or winding the chain.

  The cutting blade 41 is formed in a front view arc shape (or horizontal) in accordance with a tree shape made for the purpose of plucking, and can reciprocate in the width direction of the teacup at the lower surface side front portion of the cutting blade support frame 47. And two reciprocating blades (clippers blades) attached to the top and bottom. A hydraulic motor 51 for driving the cutting blade 41 is attached to the right end of the upper frame 46 (see FIGS. 2 and 3). Further, a priority valve (not shown) as a flow rate priority extraction valve is interposed in the oil passage connecting the hydraulic motor 51 and the hydraulic pump 33. This priority valve is a valve that can always give priority to taking out a constant hydraulic pressure (flow rate) regardless of the hydraulic pressure (pump flow rate) discharged from the hydraulic pump 33. The hydraulic pressure is always supplied to the hydraulic motor 51 so that the driving speed of the cutting blade 41 can be obtained. Therefore, when the engine speed is increased, the air flow generated by the blower 35 increases, but the driving speed of the cutting blade 41 is not increased, and the driving speed of the cutting blade 41 corresponding to the cutting operation is always maintained. It is supposed to be.

  The cutting blade 41 is positioned by, for example, a cutting unit preset by the control unit via the input operation display unit based on a detection value from a potentiometer as a detecting means for detecting a rotation angle of a sprocket that winds up the chain. This is done by driving and controlling the winding device so that the cutting blade is positioned at a height. The height position of the cutting blade 41 is not limited to the potentiometer, and for example, other mechanical or optical detection means can be used.

  Above the cutting blade 41, a pair of left and right rotating brushes 42 are attached so as to be rotatable along the longitudinal direction of the cutting blade 41. The rotating brush 42 is formed in a crank shape when viewed from the front. The rotating brushes 42a and 42b are spaced apart in the left-right direction, the mounting frame 42c is connected to the rotating shafts 42a and 42b, and the mounting frame 42c. And a plurality of brush units 42d that are slidably contactable with the upper front portion of the cutting blade support frame 47 in a state where they are detachably attached to the blade support frame 47. The rotating brush 42 is not limited to the front-view crank type, and a non-crank type rotating brush may be used.

  The rotary shaft 42 a inside each rotary brush 42 is connected to the shaft end portion of the connecting rod 53 via a universal joint 52. The connecting rod 53 is pivotally supported by a pair of left and right support stays 54 that are suspended from a substantially central portion of the upper frame 46. Further, the rotation shafts 42b on the outer side (between the ribs) of each rotary brush 42 are rotatably supported by the side surface portions 48, respectively.

  A drive unit 55 for rotating the rotary brush 42 is attached to the left end of the upper frame 46, and as shown in FIG. 6, an output shaft 57 of an electric motor 56 (shown in FIG. 3) as a drive source. A drive chain 60 is wound between the fixed sprocket 58 and the sprocket 59 fixed to the rotating shaft 42b of the rotating brush 42 on the left side of the machine body, and an operation unit (not shown) provided in the control unit 24 The left and right rotating brushes 42 can be varied and rotated at high speed (for example, 200 rotations per minute or more).

  As shown in FIGS. 7A and 7B, the brush unit 42d includes a plurality of brush portions (threads, bunch of hairs) 42d1 and a brush base 42d2 in which the plurality of brush portions 42d1 are planted. It is configured. The brush portion 42d1 is preferably a bundle of a plurality of synthetic resin threads having a wire diameter of about 1 mm or less. If the wire diameter is too narrow, the waist becomes too weak and the picked tea leaves cannot be smoothly conveyed to the container. In addition, if it is thicker than this wire diameter, the waist becomes too strong and not only hurts the picked tea leaves, but also when the rotating brush is rotated, the load on the tea leaf picking device is large and the device itself may be damaged. is there.

  The brush table 42d2 has a rectangular front portion having a total length of about 100 mm in the longitudinal direction, and fixing screws for fixing the brush table 42d2 to the mounting frame 42c are screwed to both left and right ends thereof. A screw hole 42d3 is provided. A screw hole (not shown) into which a fixing screw is inserted is provided on the front side of the mounting frame 42c. In the brush base 42d2, there are 1 flocked holes having a diameter of about 3 mm at a pitch of about 10 mm so that the airflow hitting the brush portion 42d1 smoothly flows between the adjacent brush portions 42d1 and 42d1. A plurality of holes are formed in the row, and the brush portions 42d1 adjacent to each other are planted with a predetermined gap therebetween, thereby forming a space portion S3. The bristle portion 42d1 planted on the brush base 42d2 has a bristle length of about 50 mm.

Then, the brush base 42d2 on which the brush portion 42d1 is planted extends along the attachment frame 42c so that the brush portion 42d1 extends from the virtual rotation center axis Z (illustrated in FIG. 3) of the rotating brush 42 substantially in one direction. The rotating brush 42 is formed by mounting in a row. Thereby, the flow of the air flow passing through the brush part 42d of the rotating brush 42 becomes smooth, and when a part of the brush part 42d1 hurts, the brush part 42d2 of the damaged part is replaced with a new brush pedestal. As a result, running cost and maintainability are improved.
In addition, numerical values, such as a thread diameter and a flock hole diameter, are not limited to these, It can change suitably. Further, the left and right rotating brushes 42 are not limited to a configuration that extends from the virtual rotation center axis Z substantially in one direction, and the phases of the left and right rotating brushes 42 are shifted (for example, about 180 degrees). )Is possible. Thereby, when the left and right rotary brushes 42 are rotated, the impact applied to the cutting blade support frame 47 with which the brush portion 42d1 is in sliding contact is dispersed, and the load on the cutting blade support frame 47 can be reduced.

Also, as shown in FIGS. 3 and 4, between the left and right rotating brushes 42, the rotating shaft 61 provided at substantially the center position of the upper frame 46 is used as a rotation fulcrum, and the drawing is directed toward the heel width direction. A plate-shaped dew plate 62 that moves like a pendulum like a middle one-dot chain line is attached, and plucked tea leaves that are transferred toward the container are distributed in the left-right direction by the deburring plate 62. The displacing plate 62 is connected to a cam fixed to an output shaft of an electric motor (not shown) provided at a substantially central position of the upper frame 46 via an arm, and the arm accompanying the rotational operation of the cam. As a result of the reciprocating motion, the depressing plate 62 is operated as a pendulum. Further, a rectifying plate 63 having a V-shape in plan view for rectifying the airflow flowing from the front to the rear is erected on the rear side of the wiping plate 62.

Further, in front of these rotating brushes 42, air blowing nozzles 43 are arranged in a row to blow an air flow toward a rotating region below the virtual rotation center axis Z of the rotating brush 42. The upper part of the blower nozzle 43 extends in the width direction of the bowl, and is integrally connected to a bifurcated intermediate duct 64 that is detachably connected to the lower part of the blower duct 37. Thereby, the airflow generated by the blower 35 is ejected from the blower nozzle 43 toward the front surface of the rotary brush 42 via the blower duct 37 and the intermediate duct 64.
As shown in FIG. 6, the blowing angle of the blower nozzle 43 is drilled in the intermediate duct support plate 65 attached to the left and right side portions 48 of the plucking machine frame 44 in order to support the intermediate duct 64 from the left and right sides. Adjustment is possible by two adjusting bolts 67 and 68 screwed into the angle adjusting long hole 66.

  In addition, as shown in FIG. 2, a loading platform 69 on which a tea bag (not shown) as a container for housing the harvested tea leaves is mounted on the rear side of the cutting blade 41 is projected toward the rear of the machine body. Is arranged. A flange portion 70 is attached to the lower portion of the elevating member 50 to support the front portion of the loading platform 69 from the left and right sides and to turn the loading platform rear portion 69B in a flip-up manner toward the front side of the machine body.

  Between the left and right flange portions 70 and the fixed horizontal frame of the automatic center mechanism portion, the pair of left and right pipe members 71 avoid interference with other airframe parts when assembled to the traveling airframe 11, and For the purpose of enhancing the support rigidity when mounting 69 and supporting the telescopic cylinder 72 described later, it is erected in an appropriately meandering form, and extends in the middle of these pipe members 71 above the fuselage. The joint member 73 is firmly connected and fixed by welding in a state where the lower end portion is joined. On the side surface (outer surface) of the upper portion of the joint member 73, an upper portion of a hydraulic telescopic cylinder 72 for rotating the back of the loading platform 69B toward the front side of the fuselage rotates in the longitudinal direction of the fuselage. It is attached as possible.

  A hinge member 74 is interposed between the lower portion of each telescopic cylinder 72 and the flange portion 70. The hinge member 74 includes a vertical vertical surface portion 74A and a projecting surface portion (not shown) that extends horizontally from the vertical surface portion 74A toward the inside of the machine body. The lower part is attached so as to be rotatable in the front-rear direction of the machine body by a knob bolt (not shown; the same applies hereinafter) with the central part of the vertical surface part 74A sandwiched from above. Further, the front portion of the vertical surface portion 74A of the hinge member 74 is attached via a knob bolt so as to be rotatable in the front-rear direction of the body while being joined to the flange portion 70 from the side of the body. It is set as the rotation fulcrum of the loading platform rear part 69B. In addition, although it is preferable that a rotation fulcrum is located ahead of the rear-end part of the traveling apparatus 20, it is not limited to this.

  Further, the projecting surface portion of the hinge member 74 is coupled and fixed in a state where it is joined to the upper surface side of a support frame (not shown) of the cargo bed rear portion 69B as a part of the airframe extending in the left-right direction of the airframe. Accordingly, when the telescopic cylinder 72 is shortened, the cargo bed rear portion 69B protruding rearward of the machine body is rotated in a flip-up manner toward the front side of the machine body. Further, when the telescopic cylinder 72 is extended, it rotates so that the cargo bed rear portion 69B that is inverted at the rear portion of the fuselage is projected toward the rear of the fuselage.

  Next, the case where a plucking operation is performed using the tea garden management machine 10 to which the tea leaf plucking device 40 is attached will be described.

  First, the operator operates the traveling machine body 11 so as to straddle the teacup, and also operates the input operation display unit so that the height of the cutting blade 41 becomes a desired cutting height, so that the tea leaf plucking device 40 and the tea bag are removed. The loading platform 69 is moved up and down. When those raising / lowering movements are completed, the cutting blade 41, the rotating brush 42 and the blower 35 are driven to start the cutting operation. When the rotary brush 42 formed in a crank shape in front view rotates and the rotary brush 42 is closest to the cutting blade 41, as shown in FIGS. And a virtual rotation center axis Z, a space portion S1 is formed, and an air flow ejected from the air blowing nozzle 43 from the space portion S1 smoothly flows toward the rear of the machine body, and the brush portion 42d1 and the brush portion 42d1. An air flow smoothly flows from the space S3 between and toward the rear of the machine body. Of course, a space portion is also formed between the virtual rotation center axis Z and the upper frame 46, and it goes without saying that an air flow also flows from this space portion. As shown in FIG. 5B, the smoothness and stability of the airflow are not changed even when the rotary brush 42 is rotated appropriately and is positioned so as to extend toward the rear of the machine body.

  Further, as shown in FIGS. 4 and 5C, the brush portion 42d1 of the rotating brush 42 is in a state of being maximally separated from the cutting blade 41, that is, in a state of being positioned almost immediately above the virtual rotation center axis Z. As a result, a large space S <b> 2 is formed between the rotating brush 42 and the cutting blade 41 without any member blocking the airflow. And the airflow which blows off from the ventilation nozzle 43 through this space part S2 flows smoothly toward an aircraft body back. As described above, regardless of the position of the brush portion 42d1 of the rotating brush 42 in accordance with the rotating operation of the rotating brush 42, the air flow ejected from the blow nozzle 43 is always stable and smoothly behind the fuselage. To flow into. As a result, the picked tea leaf branch is not entangled with the cutting blade 41 or the rotation shaft or collected on the cutting blade support frame 47 by the cooperation of the rotation operation of the rotating brush 42 and the air flow ejected from the blower nozzle 43, After being smoothly transported toward the rear of the machine, it is sent to and stored in a tea bag opened toward the front of the machine.

  Eventually, when reaching the teacup end and finishing the cutting operation, the operator stops the cutting blade 41, the rotating brush 42 and the blower 35 and operates the input operation display unit to raise the cutting blade 41. When the position of the cutting blade 41 becomes high, the direction is changed in the headland to move to the next teacup. In this case, by retracting the telescopic cylinder 72, the loading platform rear portion 69B is turned upside down by turning up toward the front side of the machine body. As a result, the amount of overhang to the rear of the fuselage is reduced and the overall length of the fuselage is shortened. Therefore, even if the headland is a narrow headland, the operator does not cause the carrier 69 to interfere with the teacup and is very stable. 11 can be turned. Then, the operator who has finished turning the traveling machine body 11 extends the telescopic cylinder 72 and extends the rear part 69B of the loading platform to the rear of the machine body, and then starts the operation of cutting the adjacent teacup in the same manner as described above. .

The cutting blade 41, the rotating brush 42, and the blower 35 are driven and stopped by the operator, but the present invention is not limited to this. For example, the rotary brush 42 and the blower 35 can be driven in conjunction with the cutting blade 41 moving to the desired cutting height position. Moreover, it is also possible to configure the rotary brush 42 and the blower 35 to stop driving when the cutting blade 41 is moved from the desired cutting height position.
In addition, a container can be used instead of the tea bag, and a conveyance duct connected to the container can be configured to open behind the plucking machine frame 40.

  As described above, according to the present invention, the pruned tea leaf branch plucked from the tea tree by the cutting blade 41 is rotated, and the air flow ejected from the blowing nozzle 43 in any state is transferred to the tea bag side, that is, the rear of the machine body. From the cutting blade 41 by the cooperation of the rotation operation of the rotary brush 42 that allows passage toward the side and the air flow from the blower nozzle 43 ejected from the front of the rotary brush 42 toward the rotary brush 42 side. As soon as it comes apart easily, even after adhering to the cutting blade support frame 47, it is immediately beaten by the rotating brush 42 and then transferred toward the rear of the machine body by the air flow. Thereby, the tea leaf picking apparatus 40 which can carry out the smooth cutting of the picked tea leaf branch and the transfer to the tea bag side can be provided.

  Further, according to the present invention, when the rotary brush 42 formed in the front view crank shape rotates, the rotary brush 42 is separated from the cutting blade 41 to the maximum extent, that is, the rotary brush 42 is in the virtual rotation center axis Z. In a state of being positioned almost immediately above, a larger space portion S2 is formed between the rotary brush 42 and the cutting blade 41, and an air flow ejected from the air blowing nozzle 43 from the space portion S2 is the airframe. It flows smoothly toward the tea bag behind. Further, when the rotary brush 42 is closest to the cutting blade 41, a space S1 is formed between the rotary brush 42 and the virtual rotation center axis Z, and the space nozzle S1 ejects from the air blowing nozzle 43. The air flow smoothly flows toward the tea bag at the rear of the machine body, and the air flow also smoothly flows toward the rear of the machine body from the space part S3 between the brush part 42d1 and the brush part 42d1 adjacent to each other. As a result, the air flow ejected from the blow nozzle 43 is always stable and smoothly flows toward the tea bag side behind the machine body, so that the pruned tea leaf branch is directed more smoothly, reliably and stably toward the tea bag side. It can be transferred and the accommodation efficiency of the picked tea leaf branch can be greatly improved. In addition, even under plucking conditions such that the pruned tea leaf branch is a long sprout, the plucked tea leaf branch can be smoothly transferred toward the tea bag side without being entangled with the rotating brush 42 or the rotary shaft, Compared with this, the plucking speed can be improved. Further, it is possible to prevent the plucked tea leaf branch from being thrown out toward the front of the cutting blade.

It is a front view of the tea leaf management machine with which the tea leaf picking apparatus of this invention was mounted | worn. It is a side view of FIG. It is a front view of the tea leaf picking apparatus which abbreviate | omitted the ventilation duct in the example. Front view of tea leaf plucking device in a state where the rotating brush in the same example is located above (A) is a side view of the tea leaf plucking device in a state where the rotating brush is located below, (b) is a side view of the tea leaf plucking device in a state where the rotating brush is located on the container side, (c). These are side views of the tea leaf plucking device in a state where the rotating brush is positioned above. It is the side view which showed the drive part of the rotating brush in the example. (A) is a front view of a rotating brush, (b) is a side view of a rotating brush.

DESCRIPTION OF SYMBOLS 10 Tea leaf management machine 11 Traveling machine body 40 Tea leaf picking apparatus 41 Cutting blade 42 Rotating brush (rotating body)
42d1 Brush part 43 Blower nozzles S1, S2, S3 Space Z Virtual center axis of rotation

Claims (4)

A cutting blade that is mounted on a traveling machine that travels across a teacup and extends in the width direction of the teacup so as to pluck tea leaves and branches from the teacup, and a plucking that the cutting blade plucks A tea leaf plucking device comprising a rotating body and a blower nozzle for transferring a tea leaf branch toward the container,
The rotating body is provided above the cutting blade so as to be rotatable along the longitudinal direction of the cutting blade, and the air blowing nozzle is disposed in front of the rotating body toward the substantially lower side of the rotating body. is provided so as to eject said rotary body, said space capable of passing an air flow toward the container-side is formed is formed on Rutotomoni front view crank type, the blower and the rotational operation of the rotating body A tea leaf plucking device, wherein the tea leaf branch picked from the teacup by the cutting blade is moved toward the container side in cooperation with an air flow ejected from a nozzle.   The tea leaf plucking apparatus according to claim 1, wherein the rotating body is provided in one direction from a rotation center axis of the rotating body. The tea leaf plucking apparatus according to claim 1 or 2 , wherein the rotating body is a rotating brush. The tea leaf plucking apparatus according to claim 3 , wherein the rotating brush has a plurality of brush portions that form a part of the space portion at predetermined intervals.

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