JP4785666B2 - Tea branch and leaf transfer device and tea cutting device having the same - Google Patents

Description

  The present invention relates to a tea branch and leaf transfer device in a tea cutting device that performs tea leaf plucking and branch trunk pruning and the like, and to a tea cutting device including the same, and particularly to an improvement of a transfer device that smoothly transfers tea leaves It is related to.

For example, as a plucking device that plucks tea leaves, there is a relatively large riding-type plucking device. This is one that can accommodate a large amount of tea leaves, such as one that has a large-capacity container mounted as a container for picked tea leaves, or that has a plurality of tea bags attached in a suspended state to form a container. Many.
In such a plucking device, for example, as shown in FIG. 12, a blower pipe with a branch nozzle 50 for transferring tea leaves is arranged on the front side of the cutting blade 22 ′. It was common to transfer tea leaves A by blowing air. Further, the transfer path for transferring the tea leaves A from the cutting blade 22 ′ to the storage portion 4 ′ is connected so as to face the horizontal transfer portion X extending substantially rearward of the cutting blade 22 ′ and thereafter the upper portion of the storage portion 4 ′. In general, the ascending transfer part Y is provided (see, for example, Patent Document 1).

However, in such a transfer mode (blow mode), the horizontal transfer part X is required, so that the length of the transfer device 5 ′ and thus the front and rear of the plucking device becomes long, and the handling property of the plucking device is reduced. .
For this reason, as shown in FIGS. 13 and 14, the applicant of the present invention, in the tea cutting apparatus that involves the ascending transfer of the tea branch leaves A that has been cut, does not provide the horizontal transfer portion X, and the tea immediately after cutting A tea branch and leaf transfer method, a transfer device thereof, and a tea mower equipped with the same, which enables the leaf and leaf A to be moved up and down immediately, shorten the front and rear dimensions of the picking device, and make the picking device compact. It has been developed and patent applications have been filed (see Patent Document 2).

The above-mentioned invention achieves the purpose of shortening the longitudinal dimension of the plucking device from the transfer device and making the plucking device compact, but further considering the smooth blowing up of the cut tea leaves A There was room for improvement.
That is, normally, the cut tea leaves A are smoothly blown up in the transfer duct by the back wind W ′ as shown in FIG. 14 (a), but are relatively long as shown in FIG. 14 (b). When the tea leaves A are cut in length (long buds, etc.), the tea branches A come into contact with the front plate 36 'of the transfer duct 6A' and are cut off, and then the tea branches A are placed in front of the transfer duct 6A '. There was a case where it fell down and could not be smoothly blown up into the transfer duct 6A '. Here, it is conceivable that the front plate 36 'of the transfer duct 6A' is simply shortened and the front receiving port of the transfer duct 6A 'is configured to be large. In the vicinity of ′, there is a problem that the back wind W ′ is disturbed and the blowing force of the tea leaves A that have been cut is reduced.
Further, there are cases where the wind is disturbed in the vicinity of the outlet 38 'of the back wind W' depending on the use situation, such as plucking in a strong wind, and the back wind W 'does not blow up smoothly.
Further, there is room for further improvement in terms of pressure loss during the transfer of the pressure air sent from the blower.
JP 2001-95346 A JP 2006-50963 A

  The present invention has been made from such a background, and in the difficult working situation of cutting tea leaves with a relatively long length (long buds, etc.), the tea leaves are in contact with the front plate of the transfer duct. The tea branch and leaf transfer device that prevents the tea branch and leaves from falling forward of the transfer duct, prevents the turbulence of the wind near the outlet of the rear duct, and reduces the pressure loss of the pressure air of the blower, and It is intended to realize a tea-cutting device having this.

  That is, the transfer device for tea branches and leaves according to claim 1 comprises a transfer duct for transferring the tea leaves after cutting toward a predetermined position above the cutting blades for cutting tea leaves such as tea leaves and trunks. In the device that blows back wind into the transfer duct from the rear position of the cutting blade and transfers the tea leaves after cutting by air blowing toward the predetermined position, the transfer starts facing the cutting blade on the front plate of the transfer duct The portion is provided with a length adjusting plate capable of changing a length of the front plate extending downward.

  Furthermore, in addition to the requirement of the claim 1, the length adjusting plate is provided to be slidable in the vertical direction with respect to the lower end of the front plate of the transfer duct. It is characterized in that the length can be adjusted steplessly.

  Moreover, in addition to the requirement of the said Claim 1 or 2, the transfer apparatus of the tea branch and leaf of Claim 3 has an upward inclination | tilt angle of 40 to the back side inner wall surface of the transfer start part which faced the cutting blade of the said transfer duct. It is characterized by being set to 70 °.

  Moreover, in addition to the requirements of the said Claim 3, the transfer apparatus of the tea branch and leaf of Claim 4 is in setting up the inclination angle of the back side of the transfer start part of the said transfer duct to 40-70 degrees. The transfer promotion plate is installed at an upward inclination angle of 40 to 70 ° from the vicinity of the rear portion of the cutting blade to the back plate of the transfer duct.

  In addition to the requirements of claim 1, 2, 3 or 4, the backside wind sent into the transfer duct is a backside duct installed on the backside of the transfer duct. The rear duct has a substantially trapezoidal shape with a hem spread in the rear view, and the depth dimension is formed so as to decrease in thickness from the upper inlet to the lower outlet. It is characterized by being.

  In addition to the requirement of claim 5, the tea branch and leaf transfer device according to claim 6 has two inlets in the upper part of the rear duct, and two blowers are provided for these two inlets. These air ducts are connected to each other.

  According to a seventh aspect of the present invention, in addition to the requirements of the first, second, third, fourth, fifth or sixth aspect, the transfer duct is installed to be inclined backward. It consists of.

The tea cutting device according to claim 8 is a traveling machine body that travels across a teacup,
A tea-cutting machine attached to the traveling machine and performing a plucking operation or a pruning work,
A storage section provided behind the tea cutter body and capable of storing the picked tea leaves;
A transfer device for transferring tea leaves and leaves such as harvested tea leaves and branch trunks from the tea cutter machine body to the storage unit, and can perform plucking or pruning work according to the purpose,
The transfer device is applied with the transfer structure for tea branch leaves according to claim 1, 2, 3, 4, 5, 6 or 7.

The tea branch and leaf transfer device of the present invention and the tea cutting device provided with the same have the following effects by the means described above.
That is, according to the tea branch and leaf transfer device according to claim 1, since the length adjusting plate that can change the length of the transfer duct extending downward from the front plate is provided, the tea branch and leaf are relatively long. When cutting (long buds or the like), the long buds or the like come into contact with the front plate of the transfer duct and do not fall forward, and the cut tea branch leaves are smoothly blown up at the transfer start portion. In addition, since the state of the transfer duct extending downward from the front plate of the transfer duct can be adjusted according to the length of the tea leaves to be cut, it is possible to prevent a reduction in blowing force due to unnecessary opening of the front plate, It prevents the branches and leaves from scattering from the transfer start part.

  Furthermore, according to the transfer device for tea branch leaves according to claim 2, since the length adjusting plate is slidable in the vertical direction with respect to the lower end of the front plate of the transfer duct, the length adjusting plate is attached and detached. Therefore, the length can be adjusted steplessly, so that the most suitable height can be set according to the size of the tea leaves to be cut.

  Further, according to the tea branch and leaf transfer device according to claim 3, since the upward inclination angle of the rear side inner wall surface in the transfer start portion of the transfer duct is set to 40 to 70 °, in the transfer start portion, Due to the Coanda effect on the rear side inner wall surface, the action of the rear side wind flowing along the upper surface of the rear inner wall surface works, so that the rear side wind is not disturbed and is smoothly fed into the back direction of the transfer duct.

  According to the tea branch and leaf transfer device according to claim 4, when the rear side inner wall surface of the transfer start portion of the transfer duct is set to have an upward inclination angle of 40 to 70 °, the transfer duct starts from the vicinity of the rear portion of the cutting blade. Since the transfer promotion plate is installed at an upward inclination angle of 40 to 70 ° over the back plate, it is easy to finely change the design of the inclination angle of the transfer promotion plate according to the air volume of the blower, etc. It can be carried out. In addition, the inclination angle of the rear side inner wall surface of the transfer start unit can be adjusted on the user side according to the cutting mode (plucking, pruning, etc.).

  According to the apparatus for transferring tea branch leaves according to claim 5, since the rear duct is formed with a thickness that decreases from the upper inlet to the lower outlet, the pressure loss of the pressure air from the blower Is reduced.

  Further, according to the tea branch and leaf transfer device according to claim 6, since the pressure air is sent from the two places of the back duct, a sufficient amount of the pressure wind can be sent relatively uniformly in the width direction of the back duct. .

  According to the tea branch and leaf transfer device of the seventh aspect, since the transfer duct is installed to be inclined backward, the cut tea branch and leaf are not easily spilled forward from the inside of the transfer duct.

According to the tea-cutting device of claim 8, since the length adjusting plate capable of changing the length of the transfer duct projecting downward from the front plate is provided, the tea branch leaves are cut with a relatively long length ( When the long buds, etc.), the long buds come into contact with the front plate of the transfer duct and do not fall forward, and the cut tea leaves are smoothly blown up at the transfer start portion. In addition, since the state of the transfer duct extending downward from the front plate of the transfer duct can be adjusted according to the length of the tea leaves to be cut, it is possible to prevent a reduction in blowing force due to unnecessary opening of the front plate, It prevents the branches and leaves from scattering from the transfer start part.
Furthermore, when the length adjustment plate is slidable in the vertical direction with respect to the lower end of the front plate of the transfer duct, there is no need to remove the length adjustment plate and the length can be adjusted steplessly. The most suitable height can be set according to the size of the tea leaves to be cut.
When the upward inclination angle of the rear inner wall surface at the transfer start portion of the transfer duct is set to 40 to 70 °, the rear surface along the upper surface of the rear inner wall surface is caused by the Coanda effect of the rear inner wall surface at the transfer start portion. The action that the wind tries to flow works, and the rear wind is not disturbed, and the air is smoothly fed to the back of the transfer duct.
Further, when setting the rear side inner wall surface of the transfer start part of the transfer duct to an upward inclination angle of 40 to 70 °, the transfer is promoted to an upward inclination angle of 40 to 70 ° from the rear part of the cutting blade to the back plate of the transfer duct. When it is performed by installing a plate, it is possible to easily change the design of the inclination angle of the transfer promotion plate in accordance with the air volume of the blower and the like. In addition, the inclination angle of the rear side inner wall surface of the transfer start unit can be adjusted on the user side according to the cutting mode (plucking, pruning, etc.).
Further, when the rear duct is formed with a small thickness as it goes from the upper inlet to the lower outlet, the pressure loss of the pressure air from the blower is reduced.
In addition, when the pressure air is sent from two places on the back duct, a sufficient amount of pressure wind can be sent relatively uniformly in the width direction of the back duct.
In addition, when the transfer duct is installed to be inclined backward, the cut tea leaves are not easily spilled forward from the transfer duct.

The best mode of the present invention is as described in the following examples. In the description, first, the whole structure will be schematically described using a plucking device as an example of the tea cutting device of the present invention, and the tea branch and leaf transfer device which is the device of the present invention will also be described. Further, as this plucking device, a so-called large-sized riding type plucking device (teacup straddle-type plucking device 1) that lifts and transfers the cut tea leaves A and accommodates them in the accommodating portion will be described as an example.
Incidentally, the transfer method itself of the present invention can be used not only for plucking the tea buds, but also for pruning work for pruning the trunks in order to prepare the tree shape and restore the state of the tree. The term “tea branch leaf” described in the name of the present invention, claims, etc. is a general term for the picked tea leaf A and the pruned branch trunk (the tea branch leaf is also given the same symbol A as the tea leaf). Moreover, “tea cutting” or “tea cutting device” is a general term for plucking (plucking device) and pruning (pruning device). A specific form of the pruning operation will be described later.

  As shown in FIG. 1 and FIG. 2 as an example, a teacup-stretching type plucking device 1 to which the transfer method of the present invention is applied, and a traveling machine body 2 that travels across the teacup T and a teacup by this traveling machine body 2. The plucking machine body 3 supported so as to be located on the upper surface of the T, the storage unit 4 provided behind the plucking machine body 3 for storing the plucked tea leaves A, and the plucked tea leaves A are transferred from the plucking machine body 3 to the storage unit 4 It comprises a transfer device 5. Hereinafter, each component will be described.

  First, the traveling body 2 will be described. This is one that travels on the ground between the teacups T across the teacup T, and has a frame 11 that is formed in a substantially gate shape when viewed from the running direction. The frame 11 includes a leg frame 11A provided in a standing state between the ridges, a connecting frame 11B that connects the leg frame 11A, and an elevating bracket 11C that is attached to the leg frame 11A so as to be movable up and down. Is. And the traveling body 12 which applied the crawler as an example is provided in the lower end of the leg part frame 11A. Of course, the traveling body 12 is not limited to such a crawler, but a form in which a pneumatic tire that does not excessively press the saddle, or both is applied (for example, a form in which a pneumatic tire is applied to the front side and a crawler is applied to the rear side). Etc. can be taken as appropriate.

  Further, in the upper part of the connecting frame 11B, in order to perform control and operation of the operator seat 13, the control stick 14, and the teacup straddle-type picking device 1 on which an operator who rides on the teacup straddle-type picking device 1 sits. The control box 15 is provided. A motor 16 to which, for example, a diesel engine is applied is mounted on the side of the operator seat 13. As an example, a hydraulic pump (not shown) is driven by the motor 16 and supplied by the hydraulic pump. The traveling oil 12 drives the driving body 12, the cutting blade 22 of the plucking machine body 3 to be described later, and further drives the cylinder (not shown) responsible for the lifting and lowering movement of the lifting bracket 11C.

On the connecting frame 11B, two blowers 17A and 17B for blowing tea leaves A cut by the cutting blade 22 are arranged side by side. The blowers 17A and 17B are directly driven by the prime mover 16. . In the two fans 17A and 17B, the rotation shaft 171 is coaxial, and the rotation shaft 171 is driven by the prime mover 16 via a pulley and a belt.
And from these blowers 17A and 17B, a pressure wind is supplied to the transfer apparatus 5 (plucking machine body 3 side) via the ventilation ducts 18A and 18B. The air ducts 18 </ b> A and 18 </ b> B are partially or entirely configured by the flexible duct 180 and connected to the transfer device 5.

  Next, the plucking machine body 3 will be described. This substantially plucks the tea leaves A, and has the cutting blade 22 as a main member. The cutting blade 22 is, for example, a pair of upper and lower cutting blade bodies 22A, a cutting blade support frame 22B that slidably supports the cutting blade bodies 22A, and a reciprocating sliding of the cutting blade body 22A with an eccentric plate, an eccentric shaft, or the like. 22A, and a pair of upper and lower cutting blade bodies 22A are reciprocated alternately so that the tea leaves A are cut by the clipper action of the blades (teeth) formed on each cutting blade body 22A.

  Thus, the cutting blade 22 takes the form of a so-called cassette-type replacement blade in which the cutting blade body 22A, the cutting blade support frame 22B, the drive unit 22C, and the like are integrally assembled. It is possible to change the specifications from the ridge-crossing plucking device 1 to a pruning device such as a shallow mowing device or an intermediate mowing device. Reference numeral 23 in the figure denotes a side plate portion that detachably holds such a cassette type cutting blade 22, and this side plate portion 23 is supported by the elevating bracket 11C, and the height of the cutting blade 22 is set freely. It can be configured.

  The drive unit 22C of the cutting blade 22 is also preferably driven by hydraulic oil supplied from the hydraulic pump (driven by the prime mover 16 mounted on the traveling machine body 2). The driving of can also be performed by an engine separately.

  Next, the accommodating part 4 that accommodates the tea leaves A cut by the cutting blade 22 will be described. As shown in FIGS. 1 to 3, as an example, the container 4 adopts a container type and directly takes tea leaves A therein. In addition to the container-type storage unit 4, one or two or more tea bags are supported in the storage unit frame, and the mouths of these tea bags are hung on the discharge port 33 of the transfer duct 6 described later. It is also possible to adopt.

  Next, the transfer device 5 for tea branch leaves A which is the device of the present invention will be described. The transfer device 5 is a part that transfers the cut tea leaves A toward a predetermined position. Here, the transfer apparatus 5 relays and transfers the tea leaves A from the plucking machine body 3 to the storage unit 4. Specifically, a mode is adopted in which the tea leaf A immediately after cutting is directed upwardly and directly above the cutting blade 22 toward the housing portion 4. Here, the transfer of the tea leaves A is an air flow, that is, a pressure wind is sent into the duct and is transferred to the accommodating portion 4. Here, the plurality of duct members are used, and these are collectively referred to as a duct unit 5A. To do.

  As shown in FIG. 4 as an example, the duct unit 5A includes a transfer duct 6 and a rear duct 7 as main members. Among these, the transfer duct 6 is formed so as to face the upper part of the accommodating part 4 after being raised slightly diagonally upward from the upper part of the cutting blade 22. Further, the rear duct 7 is a pressure wind (this is referred to as a rear wind W) that flows upward into the transfer duct 6 from the rear side of the cutting blade 22, that is, the rear side of the cutting blade 22 that is rearward with respect to the plucking direction. ). Hereinafter, the transfer duct 6 and the rear duct 7 will be described in more detail.

  First, the transfer duct 6 will be described. As described above, this is set up almost directly above the cutting blade 22 and ascends and transports the tea leaf A immediately after cutting to the accommodating portion 4. Note that the transfer duct 6 is installed at a tilt of about 8 ° from the upright state as a feature of the present embodiment. This is because the cut tea leaves are not easily spilled forward from the inside of the transfer duct and are smoothly blown up, but this rearward tilt angle is 5 ° to 45 °. An appropriate angle can be selected within a range where it is not necessary to increase the overall length of 1. In the transfer duct 6, a part (lower part) where the transfer of tea leaves A is started is a transfer start part 31, and a part (upper part) where the transfer of tea leaves A is finished is a transfer end part 32. Is formed with a discharge port 33 that faces the accommodating portion 4. Further, in this embodiment, the transfer start portion 31 is opened to the lower side and is formed so as to surround the cutting blade 22 when viewed from a plane. On the other hand, the transfer terminal end portion 32 is appropriately curved so that the discharge port 33 faces the accommodating portion 4, and the discharge port 33 is further provided with a hook 32 a for attaching the open end side of the tea bag B.

  In addition, it is preferable that the transfer duct 6 does not change a width dimension, a cross-sectional area, etc. suddenly in the middle of the transfer from the transfer start part 31 to the discharge outlet 33 (transfer end part 32), and this is the damage of the tea leaf A accompanying transfer. Is to reduce as much as possible. Further, as shown in FIGS. 4, 5, and 7, for example, the transfer path is formed with a branch portion 35 in which the middle portion is bifurcated. In addition, since this branch part 35 becomes a site | part which divides | segments the tea leaf A to carry up ascending to right and left, even if the tea leaf A hits the branch part 35, it is a smooth R shape, ie, a transfer path, as much as possible. It is preferable to form a U-shape and smoothly distribute the tea leaves A to the left and right.

Further, such a transfer duct 6 (duct unit 5 </ b> A) is preferably configured such that at least a part thereof is formed in a nested shape or a flexible shape and can move up and down together with the cutting blade 22.
As described above, in the present embodiment, the tea leaves A are not transported to the rear side of the cutting blade when the tea leaves A are transported upward, so that the length of the transport device 5 and thus the front and rear length of the teacup straddle-type plucking device 1 can be shortened. It is.

  In addition, as a feature of the present invention, a length adjusting plate 360 that can change the length of the front plate 36 extending downward is located at the position of the transfer start portion 31 facing the cutting blade 22 on the front plate 36 of the transfer duct 6. It is slidable in the direction. The length adjusting plate 360 has substantially the same dimension as the length of the cutting blade 22 and has a shape in which the center is bent slightly higher in the same manner as the cutting blade 22 in accordance with the upper surface shape of the teacup T. Long holes 361 are drilled at a plurality of intervals in the width direction of the length adjusting plate 360, and are screwed with the thumbscrews 362 at the positions of the screw holes 36 a drilled in the front plate 36. As an example, the front plate 36 has a plurality of screw holes 36a at a plurality of height positions, and the position of the length adjusting plate 360 is longer than the length of the long hole 361 by changing the screwing position of the thumbscrew 362. Adjust the overhang.

Still further, as a feature of the present invention, the transfer start portion 31 of the transfer duct 6 is provided with a transfer promotion plate 34 installed to be inclined upward from the vicinity of the rear portion of the cutting blade 22 with respect to the back plate 37 of the transfer duct 6. . In this embodiment, the inclination angle is set to about 55 ° as shown in the side views of FIGS. This angle is appropriately changed according to the cutting length of the tea leaves A, the air volume of the blowers 17A and 17B, etc., but is set to an upward inclination of about 40 to 70 °.
By this transfer promotion plate 34, the back wind W is not disturbed at the transfer start portion 31 of the transfer duct 6, and the back wind W blows up smoothly.

  Next, the back duct 7 will be described. This is a duct that feeds the back wind W into the transfer duct 6 (transfer start portion 31) from the rear side of the cutting blade 22 as described above, and is provided in close contact with the back side of the transfer duct 6. In this embodiment, the transfer unit 6 and the rear duct 7 having separate structures are stretched to form the duct unit 5A. However, due to the above-described configuration, these can be formed integrally. In this case, the back plate 37 of the transfer duct 6 can be made common with the front plate 36 of the rear duct 7.

Further, the back duct 7 has a substantially trapezoidal shape with an expanded hem when viewed from the back of the teacup straddle-type plucking device 1 (see FIGS. 1 and 7 (a)). As a feature of the present embodiment, as shown in FIGS. 4 and 7 (b), the rear duct 7 is formed with a thin thickness as it goes from the upper inlet 39 to the lower outlet 38 (depth dimension). ing.
Two inlets 39 are opened side by side at the upper part of the rear duct 7, and the air ducts 18 </ b> A and 18 </ b> B connected to the fans 17 </ b> A and 17 </ b> B are connected to the inlets 39, respectively. The rear duct 7 guides the sent pressure air downward, and then sends it as an upward flow from the outlet 38 to the transfer duct 6 (transfer start portion 31). The blowers 17A and 17B can be implemented as a single unit, and when implemented as a single unit, the inlet 39 of the rear duct 7 can be changed to one. It is preferable that the air duct is branched into two on the way and connected to the two inlets 39.

The tea cutting apparatus of the present invention is configured as described above as an example, and this operation mode will be described below.
(1) Overview of Back Wind Formation Process To generate the back wind W, first, the prime mover 16 on the traveling machine body 2 is driven, and the pressure air is generated by the two fans 17A and 17B. The generated pressure air is then taken into the rear duct 7 through the air ducts 18A and 18B (flexible duct 180). The pressure air introduced into the back duct 7 spreads in the width direction within the back duct 7 and is sent into the transfer duct 6 (transfer start portion 31) as the back wind W from the outlet 38 behind the cutting blade. The rear wind W is an upward flow from the rear of the cutting blade 22 toward the upper side, and has a transfer capability of conveying at least the tea leaf A to the discharge port 33 (transfer end portion 32) of the transfer duct 6.

(2) Outline of Transfer Mode of Tea Leaves With such back wind W, tea leaves A are first drawn to the rear side of the cutting blade 22 immediately after cutting. This is because the back wind W is blown from the rear of the cutting blade 22, and a negative pressure is formed near the rear of the cutting blade 22, specifically, near the outlet 38 of the back wind W (the negative pressure of the back wind W). Suction action), it is considered that the tea leaves A are attracted from the cutting blade portion to the outlet 38 side. Then, the tea leaves A attracted to the blower outlet 38 side ride on the back wind W that forms an upward flow, ascend in the transfer duct 6, and are accommodated in the accommodating portion 4 from the discharge port 33.

(3) Operation Mode of Length Adjustment Plate of Transfer Duct Next, an operation mode of the length adjustment plate 360 of the transfer duct 6 which is a feature of the present invention will be described. The length adjustment plate 360 is slid up and down in accordance with the set length of tea leaves A to adjust the length of the front plate 36 of the transfer duct 6. For example, as shown in FIG. 8 (b), when the tea leaves A are plucked with long buds, the length adjustment plate 360 is slid up and plucked, while when the tea leaves A are plucked with short buds. As shown in FIG. 8 (a), the length adjusting plate 360 is slid down and plucked. Thus, by sliding the length adjusting plate 360 upward, for example, when the tea leaves A are plucked as long buds, the tea leaves A come into contact with the front plate 36 of the transfer duct 6 and fall forward and smooth blowing up. Avoid situations that aren't done. Further, when the tea leaves A are plucked with short buds, the front plate 36 of the transfer duct 6 is unnecessarily opened, so that the blowing force is prevented from being unnecessarily reduced, and before the opening is opened. The forward scattering of the tea leaves A from the face plate 36 can be prevented.

(4) Mode of operation of transfer promotion plate The back wind W blown up from the outlet 38 flows along the upper surface of the transfer promotion plate 34 due to the Coanda effect because the transfer promotion plate 34 exists in the flow. Therefore, the back wind W is not disturbed in the transfer start part 31 and tries to blow up smoothly. Furthermore, since the transfer duct 6 is slightly inclined backward, the cut tea leaves A are prevented from falling forward.

(5) Airflow of pressurized air in the rear duct As the pipe diameter of the rear duct 7 is directed from the upper inlet 39 to the lower outlet 38 as shown in FIGS. , The pressure loss when the pressure wind passes through the back duct 7 is reduced, and the back wind W is sent out into the transfer duct 6 with sufficient wind pressure without significantly increasing the performance of the blowers 17A and 17B. be able to.

[Other Examples]
The present invention has the above-described embodiment as one basic technical idea, but the following modifications can be considered. That is, the pressure air introduced into the introduction port 39 of the rear duct 7 is supplied to the inlet 39 in the rear duct 7 in such a manner that the air is spread evenly toward the lower outlet 38 as shown in FIG. A guide tube 40 whose tip is expanded in the width direction of the rear duct 7 as shown in FIG. For the same purpose, an expansion guide 41 may be installed in the rear duct 7 as shown in FIG. As an example, this is configured by using a plurality of brackets having an L-shaped cross section and attaching them in a flared shape or radially from the inlet 39 toward the outlet 38.

  In the basic embodiment, the length adjusting plate 360 is locked at a predetermined height by manual screwing. However, the length adjusting plate 360 is moved up and down by using a rack and pinion mechanism, an electric motor cylinder, or the like. It may be. When such a driving method is adopted, the height of the tea tree may be detected by an infrared sensor or a contact sensor, and the length adjusting plate 360 may be moved up and down by the control device.

  In the previous basic embodiment, the tea leaves A are transferred only by the back wind W acting from the rear of the cutting blade 22, but the present invention is not limited to this. That is, depending on the growth state of tea buds to be plucked, the condition of the transfer path (ascending transfer distance, etc.), the ability of the blowers 17A and 17B to generate the back wind W, for example, in addition to the back wind W as shown in FIG. It is possible to make a transfer wind (this is referred to as a front wind W1) act from the front side of the blade 22 (the front side in the cutting direction).

  Further, in the previous basic example, when setting the rear side inner wall surface of the transfer start portion 31 of the transfer duct 6 to the upward inclination angle 40 to 70 °, it was performed by installing the transfer promotion plate 34. As shown in FIG. 11, it is of course possible to form the back plate 37 itself in the transfer start portion 31 of the transfer duct 6 so as to have an upward inclination angle of 40 to 70 °.

  Further, in the basic embodiment described above, the embodiment of the teacup straddle type plucking device 1 with ascending transfer has been described as an example, but as described above, the transfer device for tea branch leaves according to the present invention is as follows. It can be used not only for plucking devices but also for pruning devices. In this case, for example, the pruned trunk can be transferred to the intercostal space with a chute member provided so as to pass up through the transfer duct 6 and then dropped (for example, the present application). Japanese Patent Application Laid-Open No. 2002-136214 “Transportation structure of a pruned branch trunk in a teacup straddling type tea-cutting device” related to a human application). Of course, the pruned branch trunk does not necessarily have to be guided to the intercostal space through the accommodating portion 4, for example, a duct can be attached from the discharge port 33 of the transfer duct 6 to the intercostal space, and the pruned branch trunk can be dropped into the intercostal space. is there. In addition, when changing the teacup straddle-type plucking device 1 to a pruning device, the plucking machine body 3 can be easily made by changing the cassette type cutting blade 22 described above to that for the pruning machine. The specification can be changed.

In the basic embodiment described above, a plucking device (single-stage plucking device) provided with only one cutting blade 22 has been described as an example. However, the present invention provides a plurality of cutting blades 22 in the vertical direction. The present invention can also be applied to a so-called multi-stage plucking device provided. For example, in the case of a two-stage plucking device, a duct unit is formed for each of the upper and lower cutting blades, and the tea leaves A plucked by these upper cutting blades and the tea leaves plucked by the lower cutting blades A is divided and accommodated in separate tea bags hung on each duct unit.
This is because, when the tea leaves A having different properties are separately picked up by the upper cutting blade and the lower cutting blade, for example, the high quality tea leaves A close to the hand picked food are picked up by the upper cutting blade, and the hand picked food is picked up by the lower cutting blade. Although it is somewhat lower in quality, it is a suitable storage form when plucking good quality tea leaves A, etc., so that in subsequent tea processing, appropriate processing conditions according to the properties of tea leaves A can be obtained. It can be taken as appropriate.

It is a perspective view which shows the use condition of the teacup crossing type plucking apparatus which shows an example of the tea cutting device provided with the transfer device of the tea branch and leaf of this invention. It is a front view same as the above. It is a side view (a) same as the above, and a vertical side view (b) of the duct unit of the transfer device. It is a perspective view which shows a transfer apparatus. It is a front view which shows a transfer duct and a length adjustment board. It is a front view which shows a plucking machine body. It is the rear view (a) which shows a duct unit, and the vertical side view fractured | ruptured by the same line bb. It is a vertical side view which shows the operation | movement aspect (a) (b) of a length adjustment board. It is a rear view which shows two other Examples (a) and (b) of a duct unit. It is a vertical side view which shows the other Example which was made to act on the front wind in addition to the back wind by a duct unit. It is a vertical side view which shows the other Example which set back plate itself of the transfer start part of a transfer duct so that an uphill inclination angle might be set to 55 degrees. It is explanatory drawing which shows typically the transfer path | route of the picking tea leaf of the conventional picking apparatus. It is the disassembled perspective view (a) which shows the structure of the conventional transfer apparatus, and the perspective view (b) which expands and shows the inlet port periphery. It is explanatory drawing which shows the problem of the conventional transfer apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Teacup crossing type plucking device 2 Traveling machine body 3 Plucking machine body 4 Accommodating part 5 Transfer device 5A Duct unit 6 Transfer duct 7 Rear duct 11 Frame 11A Leg frame 11B Connection frame 11C Lifting bracket 12 Traveling body 13 Pilot seat 14 Control rod 15 Control box 16 Motor 17A Blower 17B Blower 171 Rotating shaft 18A Blower duct 18B Blower duct 180 Flexible duct 22 Cutting blade 22A Cutting blade body 22B Cutting blade support frame 22C Drive section 23 Side plate section 31 Transfer start section 32a Hook 33 Discharge port 34 Transfer promoting plate 35 Branch portion 36 Front plate 36a Screw hole 360 Length adjusting plate 361 Long hole 362 Wing screw 37 Back plate 38 Air outlet 39 Inlet port 40 Guide tube 41 Expanding guide body 50 Branch nozzle A Tea leaf (tea Branches and leaves)
T Teacup X Horizontal transfer part Y Ascending transfer part W Back wind

Claims (8)

A transfer duct for transferring the tea branch leaves after cutting toward the predetermined position is provided above the cutting blade for cutting the tea branch leaves such as tea leaves and trunks, and the rear wind is located behind the cutting blade in the transfer duct. In a device that blows the tea branch leaves after cutting by air blowing toward a predetermined position,
The transfer of tea branches and leaves is characterized in that a length adjusting plate is provided at the position of the transfer start portion facing the cutting blade on the front plate of the transfer duct, and a length adjustment plate capable of changing the length of the front plate extending downward is provided. apparatus.   2. The transfer of tea branch leaves according to claim 1, wherein the length adjustment plate is slidable in the vertical direction with respect to the lower end of the front plate of the transfer duct, and the length can be adjusted steplessly. apparatus.   The apparatus for transferring tea branch leaves according to claim 1 or 2, wherein the rear side inner wall surface of the transfer start portion facing the cutting blade of the transfer duct is set to have an upward inclination angle of 40 to 70 °.   When setting the inner wall surface on the rear side of the transfer start portion of the transfer duct to an upward inclination angle of 40 to 70 °, it is transferred to the upward inclination angle of 40 to 70 ° from the vicinity of the rear portion of the cutting blade to the back plate of the transfer duct. The apparatus for transferring tea branch leaves according to claim 3, wherein the transfer is performed by installing an accelerating plate.   The back wind sent into the transfer duct is sent by a back duct installed at the back of the transfer duct, and this back duct has a substantially trapezoidal shape with a hem spread in the rear view, and this depth dimension. 5. The tea branch leaf transfer device according to claim 1, wherein the tea branch leaf transfer device is formed so as to be thinner from the upper inlet to the lower outlet.   6. The tea branch leaf transfer device according to claim 5, wherein there are two inlets at an upper portion of the rear duct, and air ducts from two blowers are connected to the two inlets, respectively.   The tea branch leaf transfer device according to claim 1, wherein the transfer duct is installed to be inclined backward. A traveling aircraft that travels across the bowl,
A tea-cutting machine attached to the traveling machine and performing a plucking operation or a pruning work,
A storage section provided behind the tea cutter body and capable of storing the picked tea leaves;
A transfer device for transferring tea leaves and leaves such as harvested tea leaves and branch trunks from the tea cutter machine body to the storage unit, and can perform plucking or pruning work according to the purpose,
A tea-cutting device, wherein the transfer device according to claim 1, 2, 3, 4, 5, 6 or 7 is applied.

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