JPH09107767A - Transportation of tea branch and leaf in tea harvester and its mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the sure transportation of tea branches and leaves especially reaped by a reaping blade to a leaf bag, etc., in a tea branch and leaf transportation mechanism which is preferably applied to a tea harvester. SOLUTION: A tea harvester 1 comprises a reaping blade 4 supported by a frame 2 and driven by an appropriate engine 3, a guiding board 5 for guiding tea branches and leaves A reaped by the reaping blade 4 and a blower tube 6 for moving the tea branches and leaves A on the guiding board 5. In the tea harvester 1, which reaps tea branches and leaves A, the guiding board 5 is composed of an upper board 21 and a lower board 22, and the upper board 21 has an air passing structure. An air passing chamber 26 almost closed except the air passing structure is constructed between the upper board 21 and the lower board 22, and this enables the introduction of air flow F1 from the blower tube 6 into the air passing chamber 26 through the part of the upper board 21 where tea branches and leaves A are not remaining. The tea branches and leaves A remaining on the upper board 21 are pushed up from down side by means of the air flow F1 and transported.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method preferably applied to, for example, a tea leaf plucking machine, and in particular, a novel tea leaf pruned by a cutting blade can be reliably moved to a leaf bag or the like. The present invention relates to a method of transferring tea branches and leaves in a tea mower and its mechanism.

[0002]

BACKGROUND OF THE INVENTION A plucking machine for harvesting tea leaves has a prime mover mounted on an appropriate frame, and the cutting blade driven by the prime mover and the tea leaves cut by the cutting blade are, for example, a rear leaf bag. It is equipped with a guide plate for guiding to the collecting bag, and a blower pipe for forcibly moving the tea leaves cut off on the guide plate to the collecting bag, and is blown into the collecting bag by blowing air from each branch nozzle of this blowing pipe. I am trying. However, when the tea leaves are wet at the time of plucking or when the tea leaves are soft sprouts, the tea leaves may stick to the guide plate, and the tea leaves may not be smoothly transferred to the bag. This tendency does not occur so much at the position of the blower tube facing the blowout nozzle due to the sufficient blowing action, but the wind force relatively decreases at the position between the blowout nozzles and the position away from the blowout nozzle. Tended to occur.

Obviously, recognizing such a problem, the guide plate is not configured to be smooth, but, for example, the actual open sho 52-5.
Proposal has been made such as forming a ridge extending along the feeding direction of tea leaves such as No. 0957 "Blower-collecting type portable tea mower" so that the tea leaves and the guide plate do not adhere to each other. However, I could not expect a sufficient effect.

Further, by utilizing the fact that air is blown in order to transfer the cut tea leaves, it is guided into the inside of a partially flat guide plate, and at the Attempts have also been made to form a large number of through holes in the face plate and blow the air flow from there to lift up the tea leaves on the guide plate (Japanese Patent Publication No. 55-47844 "In the machine casing of hair clipper type tea mowers". Cutting leaf adhesion prevention device "). However, in this method, since the air flow is forcibly branched into the hollow portion of the guide plate, first, the air flow that should be directly sprayed on the tea leaves is weakened, and the transfer is not smoothly performed. Secondly, the air flow guided inside the hollow guide plate easily blows out from the portion where the fumarole is open, that is, the portion where the tea leaves are not retained, and does not substantially contribute to pushing up the retained tea leaves. That is, the two phenomena synergistically affect each other, failing to exert a sufficient effect.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of such a background, and provides a novel method of reliably transferring tea leaves to a bag for collecting leaves without stagnation on the guide plate. Development is a technical issue.

[0006]

[Means for Solving the Problems] That is, a method of transferring tea leaves in a tea mower according to claim 1 is a cutting blade supported by a frame and driven by an appropriate prime mover, and a tea branch cut by the cutting blade. Using a tea mower equipped with a guide plate for guiding the tea leaves and a blower tube for moving the tea leaves on the guide plate, when cutting the tea leaves, the guide plate is formed by an upper plate and a lower plate. The upper plate has a ventilation structure, and a ventilation chamber is formed between the upper plate and the lower plate in a substantially sealed state except for the ventilation structure, whereby non-remaining tea leaves of the upper plate remain. The air flow from the blower pipe is introduced into the ventilation chamber from the section, and the air flow is used to push up the tea leaves that remain on the upper plate from below to transfer the tea leaves. In particular, according to the present invention, when an attempt is made to realize the technical idea that the tea leaves on the guide plate are usually lifted up, a method of introducing a guide part separately by a duct or the like as in the above Japanese Patent Publication No. 55-47844 is, so to speak. As is common technical knowledge, a portion where tea leaves do not exist simply by providing air holes as in the present invention, that is, a portion where tea leaves have already been blown away is introduced into the ventilation chamber by pressurized air, which blocks the ventilation structure. That is, the above-mentioned action is performed by the original idea that the pressure wind is eliminated at the staying tea leaves.

In addition to the above requirements, the tea branch transfer method for a tea mower according to a second aspect of the present invention is characterized in that the ventilation structure is formed by applying punching metal to the upper plate. . According to the present invention, since the punching metal standardized as the ventilation structure can be applied, the material itself can be easily obtained, and the tea mower can be configured without increasing the cost.

Furthermore, in addition to the above requirements, the tea branch leaf transfer method in a tea mower according to a third aspect of the present invention is characterized in that the tea mower is a plucking machine for harvesting tea leaves. According to the present invention, when applied to a plucking machine in which tea leaves are most likely to be produced on the guide plate, the plucking operation can be performed smoothly and the quality of plucked tea leaves does not deteriorate.

Further, the tea branch and leaf transfer mechanism in the tea mower according to claim 4 is supported by a frame and is driven by an appropriate prime mover, and a guide for guiding the tea branches and leaves cut by the cutting blade. In a tea mower equipped with a plate and a blower tube for moving tea leaves on the guide plate, the guide plate is formed by an upper plate and a lower plate, and the upper plate has a ventilation structure and an upper plate. A ventilation chamber that is in a substantially sealed state except the ventilation structure is formed between the lower plate and the lower plate. According to this invention, first, the contact area between the guide plate and the tea leaves on the guide plate is reduced by adopting the ventilation structure, so that the retention due to the sticking is prevented, and even if the sticking is strong, the ventilation is prevented. From the top plate of the structured guide plate, the pressure air from the blower tube enters the ventilation chamber on the lower side of the guide plate, and this leaves the tea leaves staying in the part that blocks the ventilation structure from the bottom. It works, and the tea leaves are peeled off from the guide plate in cooperation with the blown air from the blower pipe, and are transferred in a predetermined direction.

Further, in the tea branch leaf transfer mechanism of the tea mower according to a fifth aspect of the present invention, in addition to the requirements of the fourth aspect, the ventilation structure is configured by applying punching metal to the upper plate. It consists of According to the present invention, since the punching metal standardized as the ventilation structure can be applied, the material itself can be easily obtained, and the tea mower can be configured without increasing the cost.

Further, in the method of transferring tea leaves in a tea mower according to claim 6, in addition to the requirements of claim 4 or 5, the tea mower is a plucking machine for harvesting tea leaves. It is characterized by. According to the present invention, when applied to a plucking machine in which tea leaves are most likely to be produced on the guide plate, the plucking operation can be performed smoothly and the quality of plucked tea leaves does not deteriorate.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tea mower 1 to which the present invention is applied will be specifically described below with reference to the drawings. In this description, as an example, among the tea mowers to which the present invention is applied, the tea leaf A
An example in which the plucking machine 1A is applied for the purpose of harvesting will be described. In addition to the plucking machine 1A, the present invention can be applied to a mowing machine used according to each step for mowing and aligning tea ridges for tea garden management.

Reference numeral 2 is a frame on which a prime mover 3 as a drive source is mounted. A cutting blade 4 driven by the motor 3 is provided near the front of the lower surface of the frame 2, and a guide plate 5 for guiding the cut tea leaves A to the rear of the cutting blade 4 is provided behind the cutting blade 4. The tea leaf A to be cut off is defined as the tea leaf A in consideration of the cutting action, but it is also referred to as the tea leaf A when only the plucking operation is performed. Further, a blower pipe 6 is provided obliquely above and above the cutting blade 4, from which tea leaves A are blown into the tea leaves A of the leaf bag 7 held by the frame 2 of the guide plate 5. To take. It should be noted that these basic configurations may be those already known in the conventional plucking machine, or partially applicable to configurations that will be developed in the future.

The above members will be described in detail below.
First, the frame 2 is provided with a cutting blade supporting frame 10 having a relatively thick wall and having sufficient rigidity at the lower side, and this one has a curved shape substantially along a tea ridge, It is configured to extend in almost the entire width direction. An upper frame 11 to which a lightweight member such as an aluminum pipe parallel to the front and rear is appropriately applied is formed in a bridge shape above the upper frame 11, and when viewed from the front, the entire frame 2 has a slightly curved rectangular shape. It becomes the structure which has an opening. Handles are provided on the left and right sides of the frame 2 in consideration of, for example, a portable work. Reference numeral 12 is a hem side handle provided on the so-called hem side opposite to the prime mover 3, and on the prime mover 3 side. An engine side handle 13 is provided. Each of these handle bases is configured so that the set angle can be adjusted with respect to the frame 2.

Next, the prime mover 3 as a drive source will be described. The prime mover 3 is, for example, one to which a two-cycle engine or the like is applied.
Can be anything as long as it can be driven. The prime mover 3 is mounted on the frame 2 and has a drive unit 15 below it. The drive unit 15 uses a so-called eccentric shaft mechanism, and has a mechanism for converting the rotational movement of the output shaft of the prime mover 3 into the linear reciprocating movement of the cutting blade 4. Since this drive mechanism is already known, detailed description thereof will be omitted.

Next, the cutting blade 4 driven by the motor 3 will be described. First, an upper blade 16 and a lower blade 17 are slidably attached to the cutting blade support frame 10 by guide pins 18 so that the upper blade 16 and the lower blade 17 are slidable. Either one or both slide relatively in the opposite direction to cut the tea branch A.

Next, the guide plate 5 attached to the rear of the cutting blade 4 will be described. The guide plate 5 is composed of an upper plate 21 and a lower plate 22, and is composed of, for example, a metal plate such as aluminum. That is, the top plate 2
1 and the bottom plate 22, the front side is the cutting blade support frame 1
It is fixed to this by sandwiching 0 from the top and bottom, and at the rear is, for example, an aluminum square pipe or the like.
The two guide plates 5 are fixed to each other by riveting or the like with the interposition of the closing rod 23 which is curved in the width direction thereof, whereby the guide plate 5 as a whole is constructed in a monocoque structure. Further, a plurality of partition plates 24 are provided between the upper surface plate 21 and the lower surface plate 22 along the front-rear direction, and these partition plates 24 are respectively provided.
It is fixed to the lower surface plate 22 with rivets or the like, constitutes a part of the strength member, and divides a ventilation chamber 26 described later into small units.

As a characteristic structure for carrying out the present invention, the upper plate 21 has a ventilation structure.
Specifically, a punching metal is applied to the upper surface plate 21 so that the opening portion serves as the ventilation hole 25. Therefore, in the ventilation chamber 26 formed between the upper surface plate 21 and the lower surface plate 22 by such a configuration, the portion other than the ventilation hole 25 is configured to be substantially sealed. As described above, the ventilation chamber 26 is substantially divided into small chambers by the partition plate 24. In the case of describing each division, the unit ventilation chamber 2
6a. Of course, in this section, the unit ventilation chambers 26a may be completely independent, or if the partition plate 24 is a short size without reaching the cutting blade support frame 10, each unit ventilation chamber 26a has a cutting blade. The four sides are in communication with each other. Further, a bag hook 27 for providing the leaf bag 7 is provided behind the guide plate 5, and the lower plate 22 is provided so as to project somewhat rearward from the upper plate 21. Plural places are provided on the upper surface and the upper frame 11 located above the upper surface.

Next, description will be given of the blower pipe 6 which is provided diagonally above and in front of the guide plate 5 in a recumbent state over substantially the entire width of the frame 1. First, a fan unit 30 is used as a drive source for blowing air to the blower pipe 6, and the fan unit 30 is built in a fan casing 32 in which a fan 31 driven by the prime mover 3 is built. Further, the main body pipe 33 of the blower pipe 6 is configured to extend in the entire width direction of the upper frame 11 from the fan casing 32, and
A large number of branch nozzles 34 are formed so as to be directed to the guide plate 5 in the middle thereof. Of course, the branch nozzle 34 extends from the main body tube 33, and is also configured to branch from near the protruding end of the fan casing 32.

The plucking machine 1A, which is an example of the tea mowing machine 1 to which the present invention is applied, has the above-described structure, and operates in the following manner so that the tea leaves A can be smoothly transferred. I have to. That is, when the plucking machine 1A, which is an example of the tea mowing machine 1, is used, the mowing blade 4 driven by the prime mover 3 reciprocates according to a conventional method to pluck the tea leaves A. The tea leaves A that have been plucked are branched nozzles 34 in the blower pipe 6.
Is pushed by the air flow F ₁ of multiple systems branched from the guide plate 5
It slides up and is fed into the leaf bag 7 behind it.
At this time, for example, when the tea leaves A are wet, they tend to stick to the upper surface plate 21 of the guide plate 5 and tend to stay, but this is reliably eliminated by the following operation. Go. That is, as shown in FIGS.
Since the contact area between the upper plate 21 and the upper plate 21 is smaller than that of a simple flat plate-shaped upper plate, sticking of the tea leaves A can be avoided by itself.

However, in the case where it still sticks, first the branch nozzle 34 in the blower pipe 6
As for the portion directly exposed by, the wind force of the air flow F ₁ is strong and the tea leaves A are almost blown backward. On the other hand, the portion where the tea leaves A tend to remain is likely to be, for example, between the branch nozzles 34 or a portion near the leaf bag 7 which is separated from the branch nozzle 34. In this case, as shown in FIG.
As shown in FIG. 3, the air flow F ₁ emitted from the branch nozzle 34 enters the ventilation chamber 26 as the inflow air F ₂ from the ventilation hole 25 of the upper surface plate 21 in the portion where the tea leaves A have already been blown and does not exist, and the air flow F ₂ inside the ventilation chamber 26. It increases the pressure of. As a result, the wind that has entered the ventilation chamber 26 again has tea leaves A.
Therefore, there is a tendency that the upward wind F ₃ escapes from the vent hole 25 in the area covered with. At this time, the push-up air F ₃ works to lift the tea leaves A from below by air pressure or to release the close contact with the upper plate 21. After the close contact is released in this way, the air flow F ₁ that normally flows on the upper plate 21 is sent to the rear leaf bag 7. By repeating this operation, it is possible to obtain a state in which the tea leaves A do not substantially stay on the guide plate 5.

[0022]

[Other Embodiments] The above description is based on the plucking machine 1A.
However, it can also be applied to a mower. Of course, the mowing machine has almost no retention due to the sticking of the tea leaves A on the mowing plate when the tea leaves A are relatively stiff buds or because there are many tea stems. Considering the work at the time, it is also an effective measure to provide such a positive function of preventing the attachment of the tea leaves A. In the case of this leveling machine, most of the trimmed tea leaves A are removed to the hem side of the leveling machine, but the same effect can be obtained by providing a similar guide plate 5 with a ventilation structure. To be

Further, in the above description, regarding the plucking machine 1A,
So far, I explained about a portable type that is premised on so-called two-person work, but this one is attached to a so-called self-propelled trolley and is done by one person, or it runs on a ridge and is on a management rail laid between the ridges. The present invention can also be applied to a so-called rail-type plucking machine on which a mobile dolly travels, and further to a riding-type plucking machine that is operated while an operator is on the mobile dolly.
Rather, as a result of labor saving, in the conventional case where two workers are not available, the worker cannot directly remove the stickiness of the tea leaves A, which is a substantially more preferable improvement.

Further, the present invention is basically characterized in that the upper plate 21 of the guide plate 5 is provided with a ventilation structure, and the ventilation hole 25 for forming the ventilation structure is formed of such a punching metal hole. It is not limited to the one used, and any appropriate one can be used. For example, as shown in FIG. 5 (a), a completely slit shape, or as shown in FIG. 5 (b) using a net, etc. a louvered perforated plate as shown in c),
Further, the concave portion may have an appropriate configuration such as an elongated configuration as shown in FIG.

[0025]

The tea mower 1 to which the present invention is applied is configured as described above, and by having such a configuration, various effects as described below are exhibited. That is, according to the invention of claim 1, when attempting to realize the technical idea of raising the tea leaf A on the normal guide plate 5, it is a common general knowledge to separately guide the guide portion by a duct or the like. However, as in the present invention, only the air holes 25 are provided and the tea leaves A do not exist, that is, the parts where the tea leaves A have already been blown off, the pressure air is guided to the ventilation chamber 26, and the parts that block the ventilation structure are closed. That is, the above-mentioned action can be surely performed by the original idea that the compressed air is eliminated at the staying tea leaves A.

Further, according to the invention of claim 2 or 5, since the punching metal standardized as the ventilation structure can be applied, the material itself can be easily obtained, and the tea mower 1 can be produced without increasing the cost. Can be configured.

Further, according to the invention of claim 3 or 6, when applied to the plucking machine 1A in which tea leaves are most likely to be produced on the guide plate, the plucking operation can be carried out smoothly and the quality of the plucked tea leaf A is deteriorated. Does not occur.

Further, according to the invention described in claim 4, the contact area between the guide plate 5 and the tea leaf A on the guide plate 5 is reduced by adopting the ventilation structure, so that the retention due to the sticking is prevented. Even if it firmly sticks, the pressure air from the blower pipes 6 enters from the upper surface plate 21 of the guide plate 5 having the ventilation structure to the ventilation chamber 26 on the lower surface side thereof, which further blocks the ventilation structure. The tea leaves A retained in the open portion are lifted from the bottom, and the tea leaves A are guided by the guide plate 5 in cooperation with the blown air from the blower pipe 6.
It is peeled off from above and transferred in a predetermined direction.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a usage state of an embodiment in which a tea branch leaf transfer mechanism of the present invention is applied to a plucking machine which is an example of a tea cutting machine.

FIG. 2 is a vertical cross-sectional side view showing an enlarged tea branch and leaf transfer mechanism of the present invention.

FIG. 3 is a skeletal longitudinal rear view of the same.

FIG. 4 is a plan view showing an embodiment in which the tea branch / leaf transfer mechanism of the present invention is applied to a plucking machine which is an example of a tea mower.

FIG. 5 is a plan view and a vertical sectional side view of a top plate showing various embodiments of a vent hole.

[Explanation of symbols]

1 Tea mower 1A Plucking machine 2 Frame 3 Motor 4 Cutting blade 5 Guide plate 6 Air duct 7 Leaf bag 10 Cutting blade support frame 11 Upper frame 12 Hem side handle 13 Engine side handle 15 Drive part 16 Upper blade 17 Lower blade 18 Guide pin 21 Top plate 22 Bottom plate 23 Blocking rod 24 Partition plate 25 Vent hole 26 Ventilation chamber 26a Unit ventilation chamber 27 Bag hook 30 Fan unit 31 Fan 32 Fan casing 33 Main body pipe 34 Branch nozzle A Tea leaf, Tea leaf F ₁ Air Flow F ₂ Inflow F ₃ Upwind

Claims (6)

[Claims] 1. A cutting blade supported by a frame and driven by an appropriate prime mover, a guide plate for guiding tea leaves cut by the cutting blade, and a blower pipe for moving the tea leaves on the guide plate. When cutting tea leaves using a tea mower equipped with, the guide plate is formed by an upper plate and a lower plate, and the upper plate has a ventilation structure, and the upper plate and the lower plate. A ventilation chamber that is almost sealed except for the ventilation structure is formed between them, and by this, the air flow from the blower pipe is introduced into the ventilation chamber from the non-remaining portion of the tea leaves on the upper plate, and this air flow is used. Then, the tea branch leaves on the top plate are pushed up from the lower side so as to be transferred, and the tea branch leaves transferring method in the tea mower. 2. The method of transferring tea leaves in a tea mower according to claim 1, wherein the ventilation structure is configured by applying punching metal to an upper surface plate. 3. The method of transferring tea leaves in a tea cutting machine according to claim 1, wherein the tea cutting machine is a plucking machine for harvesting tea leaves. 4. A cutting blade supported by a frame and driven by an appropriate prime mover, a guide plate for guiding the tea leaves cut by the cutting blade, and a blower tube for moving the tea leaves on the guide plate. In the tea mower equipped with the above, the guide plate is formed by an upper plate and a lower plate, and the upper plate has a ventilation structure, and the space between the upper plate and the lower plate is substantially sealed except for the ventilation structure. A tea branch and leaf transfer mechanism in a tea mower, which is characterized by constituting a ventilation chamber in a state. 5. The tea branch leaf transfer mechanism in a tea mower according to claim 4, wherein the ventilation structure is configured by applying punching metal to an upper surface plate. 6. The tea branch and leaf transfer mechanism in the tea trimmer according to claim 4 or 5, wherein the tea trimmer is a plucking machine for harvesting tea leaves.