JP2002360035A - Tea pruning machine provided with detachable pruning blade unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tea pruning machine provided with a new detachable pruning blade unit to enable easy and quick removal of the pruning blade unit from the tea pruning machine and attaching of the unit to the machine and the common use of the main body among various tea pruning machines having different specifications. SOLUTION: The pruning blade unit 1 is produced by integrating a pruning blade guide plate 11 for supporting a pruning blade 10 and a reciprocating driving part 12 and is detachably attachable to a main body 2. The attaching and detaching work of the pruning blade 10 can be easily and quickly performed without necessitating a staff of the manufacturer of the machine skilled in the handling of the machine because the work can be carried out simply by exchanging the unit. The main body 2 and the peripheral member of the pruning blade 10, etc., can be separately modularized to enable the rational manufacture of machines having different specifications.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tea cutting machine, and more particularly to a method for easily and quickly removing a cutting blade from a tea cutting machine and attaching the cutting blade to the tea cutting machine. The present invention relates to a tea cutter equipped with a new detachable cutting blade unit.

[0002]

BACKGROUND OF THE INVENTION A tea cutter used in a tea garden has a drive source mounted on an appropriate frame, and is cut by a cutting blade body reciprocally driven by the drive source and teeth formed on the cutting blade body. And a guide plate for guiding the tea leaves to, for example, a rear leaf collecting bag. And of course, the sharpness of the teeth decreases with use, so that the sharpness is restored by performing blade sharpening, and after performing several more blade sharpenings, a new cutting blade body is eventually formed. Replacement is required.

[0003] When the blade is removed from the tea cutter during such blade sharpening or replacement, the structure of the conventional tea cutter is as shown in FIG. Since the guide pin 13 'is attached to the guide plate 11' by using the guide pin 13 ', the guide pin 13' is released and the reciprocating drive unit 12 'is disassembled to connect the drive mechanism to the cutting blade body 10'. An operation to release the part is required.

However, since the teeth 102 'formed on the cutting blade body 10' are sharp blades, the workers are required to be careful, and two or more workers are required to carry out the above-mentioned work while maintaining the right and left balance. Must do. Such a work form is very troublesome and takes a long time as work performed by a tea farmer who is a user in a tea garden. In particular, when the blade 10 'having been sharpened is attached to the tea cutter C', the gap between the pair of upper and lower blades 10 'needs to be adjusted, and this gap adjusting operation can be performed accurately. Is limited to skilled workers.

[0005] For this reason, at present, a service staff of a maker side requested by a tea farmer goes under the user to perform the cumbersome attachment / detachment work described above. I try to continue my work. On the other hand, a working mode is adopted in which the removed cutting blade body is brought back to the work place to grind the teeth, and then goes under the user again to perform the mounting work again. Of course, in the case of a small and inexpensive tea-cutter such as a portable type, there is still room for a tea farmer to avoid a substantial decrease in the operating rate by using a spare one, but the self-propelled type has recently become mainstream. Since the tea-cutters of the traveling type and the rail-running type are expensive, it is not practical to provide a spare for the entire apparatus only for maintenance of the cutting blade body.

[0006] On the other hand, the cutting blade in the tea cutter has the following unique problems in terms of technical aspects on the manufacturing side. That is, although the specifications of the tea mower have many common parts in that it is a device that applies teeth to the tea tree, the pruning machine, the mowing machine, the shallow mower, the light pruning machine, the medium mowing machine Each type of mowing machine, such as a mowing machine and a pruning machine, is different for each device, and requires dedicated parts corresponding to the specifications of each device.

Therefore, the manufacturer prepares several types of specifications for the prime mover, the main body including the prime mover, the cutting blade body, the reciprocating drive unit, and the like, and selects an optimal combination. By selecting, plucking machine, mowing machine,
It constitutes a shallow mower, a light pruning machine, a medium mower, a mowing machine and the like. Nevertheless, the combination pattern of the cutting blade body and the reciprocating drive unit is almost fixed according to the load of each cutting mode, and the above-described rationalization of the manufacturing of the tea mowers of different specifications. If we try to achieve this, there is still room for further improvement.

The present inventor has further clarified the above-mentioned problems related to the maintenance of the cutting blade by the user and the problems in the production by the manufacturer, which are seemingly unrelated to each other. Based on the idea that the objectives could be achieved at the same time, we tried to develop a new mechanism based on this idea. That is, if the cutting blade body and the reciprocating drive unit can be exchanged in an integrated state, it is possible to modularize the main body and the cutting blade body peripheral members, etc. This makes it possible to manufacture the blades rationally, and furthermore, the user has a specific idea that the cutting blade can be easily replaced by unit replacement for maintenance.

[0009]

SUMMARY OF THE INVENTION The present invention has been made based on such a background and idea, and it is easy to remove a cutting blade from a tea cutter and to attach the cutting blade to the tea cutter. Technical issue to develop a tea cutter equipped with a new detachable cutting blade unit that can be performed quickly and quickly and that allows the main body to be shared between tea cutters of different specifications It is what it was.

[0010]

According to a first aspect of the present invention, there is provided a tea cutter comprising a detachable cutting blade unit, comprising a cutting blade unit reciprocally driven by an appropriate drive source; In a tea cutting machine or the like comprising a main body portion supporting the cutting blade unit, the cutting blade unit includes a cutting blade support guide plate for supporting the cutting blade body, and a cutting blade body for transmitting power transmitted from a driving source. And a reciprocating drive unit for converting the reciprocating motion into a reciprocating motion is configured as one assembly, and the cutting blade unit is configured to be detachably attached to the main body. According to the invention,
Since the mounting and dismounting of the cutting blade body, which has been a troublesome task in the past, can be performed by replacing the unit, it can be easily and quickly performed even by a person who is not a maker familiar with the handling of the equipment. In addition, it is possible to modularize the main body, the cutting blade peripheral members, and the like, and it is possible to more rationally manufacture products with different specifications.

According to a second aspect of the present invention, in addition to the above requirements, a tea cutter having a detachable cutting blade unit further includes a cutting blade support guide plate in the cutting blade unit and a tea branch leaf cut by the cutting blade body. It is characterized in that the space between the guide plate and the guide plate provided on the main body is configured to be separable for guiding. ADVANTAGE OF THE INVENTION According to this invention, the attachment and detachment operation of a cutting blade body can be performed easily and quickly.

According to a third aspect of the present invention, there is provided a tea cutter comprising the detachable cutting blade unit.
The cutting blade unit includes a guide plate for guiding tea leaves cut by the cutting blade body, and the guide plate and the frame member of the main body can be separated. ADVANTAGE OF THE INVENTION According to this invention, the attachment and detachment operation of a cutting blade body can be performed easily and quickly.

[0013] In addition to the above requirements, the tea mower having the detachable cutting blade unit according to claim 4, wherein the driving source is supported by the main body, and the cutting blade unit is provided. The coupling element formed at the distal end of the output shaft of the drive source and the coupling element formed at the distal end of the input shaft of the reciprocating drive unit are coupled in a state where is mounted on the main body. It is characterized by the following.
According to the present invention, the transmission path of the power supplied from the driving source to the cutting blade body can be simply formed in a series of operations for mounting the cutting blade unit to the main body,
The time required for attaching and detaching the cutting blade body can be significantly reduced.

According to a fifth aspect of the present invention, in addition to the above requirements, the tea mower having the detachable cutting blade unit further comprises a main body and the cutting blade unit which are engaged with each other so as to engage with each other. And a pair of locking mechanisms capable of performing the positioning described above. ADVANTAGE OF THE INVENTION According to this invention, attachment / detachment work of a cutting blade body can be performed accurately, without requiring special delicate work.

According to a sixth aspect of the present invention, in addition to the above requirements, the cutting blade unit mounted on the main body portion has a cutting blade configuration according to a working mode. The cutting blade unit is appropriately selected from a plurality of different types of cutting blade units. According to the present invention, since a single main body can be used for pinching, for shallow mowing, for medium mowing, and the like, it is possible for a manufacturer to rationally manufacture tea mowers of different specifications. For the user, the initial cost and running cost can be significantly reduced as compared with a case where each tea cutter is purchased as a dedicated machine. The problem is solved by using the configuration of the invention described in each of the claims.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a tea cutter equipped with a detachable cutting blade unit according to the present invention. In the present specification, a plucking machine for harvesting tea leaves and a trimming machine, a shallow mower, a light pruning machine, and a medium used according to each stage for trimming tea ridges for tea garden management. A mower, a mowing machine, a foot mower and the like are collectively referred to as a tea mower. Further, the tea-cutter may be basically a portable type, but according to recent trends in labor saving and the like, by combining this with an appropriate traveling mechanism, a self-propelled type, a rail traveling type, a riding type, etc. Various modes of progress may be adopted. It should be noted that the basic configuration of the tea cutter can be a configuration that is already known in a conventional apparatus, and it is possible to partially apply a configuration that will be developed in the future.

In this embodiment, a description will be given using a riding plucking machine C as a tea mower. As shown in FIG. 1, the riding plucking machine C is configured to detachably attach a tea mower unit U to a traveling cart B, and the tea mower unit U is attached to the tea leaves A. The cutting blade unit 1 acting directly on the main unit 2 is configured to be detachably attached to the main body 2.

Here, the definitions of the cutting blade unit 1 and the main body 2 will be mentioned. First, the cutting blade unit 1 acts directly on the tea leaves A.
As defined in claim 1, the cutting blade body 10, the cutting blade support guide plate 11 supporting the cutting blade body 10, and the power transmitted from the drive source 5 are converted into the reciprocating motion of the cutting blade body 10. And a reciprocating drive unit 12 are configured as one assembly. The main body 2 serves as a strength member for supporting the cutting blade unit 1, and is configured by a member obtained by removing various members included in the cutting blade unit 1 from the tea cutter unit U. In this embodiment, members such as the air pipe 3 and the drive source 5 and a frame member for supporting these members are provided.

The main body 2 will be described in detail.
The frame member of the main body 2 includes side plates 21 and 22 at both ends of an upper frame 20 to which a lightweight member such as an aluminum pipe parallel to the front and rear is appropriately applied, as an example. By providing the guide plate 23 at the lower part, it is configured to have a rectangular opening somewhat curved in a front view.

The outside of the side plate 22 is provided with a pin 22a which engages with a slit 16a of the cutting blade unit 1 described later, as shown in FIG. The guide plate 23 is located behind the cutting blade body 10 to be described later. For example, a metal plate such as aluminum is curved toward the arch side, and female screw holes 23a are formed at a plurality of positions along the longitudinal direction. I do.

Next, various members held by such a frame member will be described. The blower pipe 3 is provided obliquely above and in front of the guide plate 23 over substantially the entire width of the upper frame 20 in a reclined state. The air supplied from the fan unit 30 driven by the drive source 5 described later is jetted from the branched nozzle 3a.

Further, the driving source 5 is connected to the upper frame 2.
In this embodiment, a two-stroke engine or the like is applied as an example. Of course, other electric motors, oil motors, and the like will be described later. Any device that can drive the cutting blade body 10 may be used. The output shaft 50 protrudes from the lower surface of the drive source 5 and penetrates through the fan unit 30.
A concave portion 50A as a coupling element is formed at a lower end portion of the output shaft 50. The shape of the concave portion 50A corresponds to the shape of a convex portion 15A, which will be described later. In the circular cross section, a portion defined by two straight lines separated by the same distance from the center line on both sides thereof is defined as an output shaft. The shape is cut off from the lower end surface of the upper part 50 over a certain range.

The side plates 21 and 22 located on the left and right sides of the upper frame 20 are provided with an assembling body 6 to which a metal pipe as an example of an assembling means to the traveling carriage B is applied.

Next, the cutting blade unit 1 which constitutes the tea mower unit U together with the main body 2 will be described in detail.
This is a modularization of peripheral members of the cutting blade body 10, a pair of upper and lower cutting blade bodies 10, a cutting blade support guide plate 11 that slidably supports these cutting blade bodies 10,
The reciprocating drive unit 12 for converting the power transmitted from the driving source 5 into the reciprocating motion of the cutting blade body 10 is configured as one assembly. And the pair of upper and lower cutting blades 10
Are alternately reciprocated, so that the tea leaves A are plucked by the clipper action of the teeth 102 formed on each cutting blade body 10.

In the following, various members constituting the cutting blade unit 1 will be described. First, as shown in the perspective view of FIG. 4, the cutting blade body 10 is formed by processing a stainless steel material into an L-shape in a plan view as an example, and a sliding portion 10 which is a long side thereof.
1 at appropriate intervals along the longitudinal direction.
And an eccentric plate receiving portion 103 having a rectangular shape with rounded corners is formed on the short side portion.

The cutting blade support guide plate 11 is a relatively thick metal member having sufficient rigidity, and has a curved shape substantially along a tea ridge. It has approximately the same width dimension as. A pair of upper and lower cutting blades 10 are slidably attached to the cutting blade support guide plate 11 using guide pins 13. Holes 11a are formed in the cutting blade support guide plate 11 at a plurality of positions along the longitudinal direction.

The reciprocating drive unit 12 is attached to one end of the cutting blade support guide plate 11, and the reciprocating drive unit 12 uses a so-called eccentric shaft mechanism. The mechanism for converting the rotational movement of the output shaft 50 into a linear reciprocating movement of the cutting blade body 10 is provided.

The specific structure of the reciprocating drive unit 12 is shown in FIG.
As shown in (1), an eccentric plate 14 is provided on one end of an input shaft 15 so as to substantially perform an eccentric motion. The two eccentric plates 14 are configured so that their phases are different from each other by 180 °, and the needle bearings 14 a with cages are fitted to the respective eccentric plates 14. Then, the eccentric plates 14 on which the needle bearings 14a are externally fitted are positioned in the eccentric plate receiving portions 103 of the pair of upper and lower cutting blades 10, respectively.
Further, the input shaft 15 is inserted through a bearing 14b fixed to the casing 12A so that the periphery of the eccentric plate receiving portion 103 of the cutting blade body 10 is covered with the casing 12b.
A is housed in A.

At this time, in this embodiment, the input shaft 15
The upper end of the input shaft 15 protrudes from the upper surface of the casing 12A, and a protrusion 15A serving as a coupling element is formed on the upper end of the input shaft 15. The shape of the convex portion 15A corresponds to the shape of the concave portion 50A,
In the circular cross section, the outside of a portion defined by two straight lines separated by the same distance on both sides from the center line is cut away from the upper end surface of the input shaft 15 over a certain range.

Further, on the side surface of the casing 12A on the cutting blade supporting guide plate 11 side, as shown in FIG. Pin 22 provided on side plate 22 in part 2
Form a slit 16a that engages with a.

The cutting blade unit 1 has the above-described structure as an example. When the eccentric plate 14 makes an eccentric movement due to the rotation of the input shaft 15, the pair of upper and lower cutting blades 10 move in the mutually crossing directions. The teeth 102 make a clipper-like movement by reciprocating movement. The driving structure of the cutting blade body 10 includes the reciprocating drive unit 1 described above.
In addition to the above, various configurations can be adopted, such as a type in which only one of the cutting blade bodies 10 is driven and a type in which power is transmitted by using a combination of a bevel gear and a universal joint.

As described above, the cutting blade unit 1 and the main body 2 have the above-mentioned structure as an example, and the tea cutter unit U is constituted by assembling them together. Specifically, as shown in FIG. 3, the cutting blade support guide plate 11 is placed on the guide plate 23, and the slits 1 formed in the side plate 16 are formed with respect to the pins 22 a provided on the side plate 22.
6a is engaged, and at this time, the convex portion 1 which is a coupling element
5A and the recess 50A are mutually connected. The details of the work procedure at this time will be described later.

The tea picking unit C, which is an example of a tea picking machine, is constructed by assembling the thus-configured tea cutting machine unit U with the traveling carriage B.
Here, the traveling cart B will be briefly described. As shown in FIG. 1, the traveling cart B includes an endless track 40 as a traveling body, a leaf container 41 and a duct 45 with respect to an appropriate frame F. It consists of Further, two rods R are provided inside the frame F to serve as connection elements for connecting the tea mower unit U.

Then, the traveling bogie B is attached to the two assembled bodies 6 provided in the main body 2 of the tea mower unit U.
After the rod R provided in the above is inserted and fixed appropriately, the riding plucking machine C is constituted.

The riding plucking machine C, which is an example of a tea mower, has the above-described configuration as an example, and is shipped with an appropriate protective cover attached to the cutting blade body 10. In the tea garden, the attachment and detachment of the cutting blade unit 1 and the main body 2, that is, the attachment and detachment of the cutting blade body 10 from the riding plucking machine C are performed quickly and safely in the following procedure. .

(1) Removal of the Cutting Blade Unit When it is necessary to maintain, grind, etc. the cutting blade body 10 of the tea cutting machine unit U in the riding plucking machine C in use in the tea garden, the operator drives the cutting machine. With the source 5 stopped, the blade 1
After attaching the protective cover to the blade 0, the cutting blade unit 1 is further removed in the following procedure.

[Setting of Coupling Element] First, the operator rotates the input shaft 15 and the output shaft 50 provided with the convex portion 15A and the concave portion 50A, which are the coupling elements in the connected state, as shown in FIG. 3B. As shown in FIG.
And parallel to the side plate 22. Such an operation can be easily performed if markings for positioning are appropriately attached to the reciprocating drive unit 12 or the drive source 5.

[Release of locking mechanism and coupling element]
After the screws 17 are removed, the cutting blade unit 1 is held and pulled out as shown in FIG.
A is released, and the engagement between the slit 16a, which is the locking mechanism, and the pin 22a is released. At this time, since the operator handles the cutting blade unit 1 configured as one assembly, the cutting blade from the riding plucking machine C can be substantially used without performing a delicate operation such as maintaining a right-left balance. Body 1
0 can be easily and safely performed by one person.

(2) Installation of a New Cutting Blade Unit Next, a maintenance and polished cutting blade body 10 prepared separately.
The cutting blade unit 1 provided with the above is mounted on the main body 2 in the following procedure.

[Setting of Coupling Element] First, as shown in FIG.
Input shaft 15 and output shaft 50 with 5A and recess 50A
Is rotated so that these longitudinal directions are parallel to the side plates 16 and 22 respectively.

[Connection of locking mechanism and coupling element]
Next, the cutting blade unit 1 is held, and the cutting blade support guide plate 1 is held.
1 is placed on the guide plate 23. In this case, FIG.
As shown in (b), the cutting blade unit 1 is pushed into the main body 2 in a state where the slit 16a formed in the side plate 16 is engaged with the pin 22a provided on the side plate 22, and the end of the slit 16a. The pin 22a is located at the portion. By such a series of operations, the convex portion 15A and the concave portion 50A, which are the coupling elements, are mutually coupled, and the centers of the input shaft 15 and the output shaft 50 are overlapped. At this time, if the cutting blade unit 1 is suspended from the main body 2 by using a suspension spring or the like, such work can be easily performed.

Subsequently, the screw 17 is screwed into the hole 11a formed in the cutting blade support guide plate 11 and the female screw hole 23a formed in the guide plate 23, thereby fixing both. By attaching the cutting blade unit 1 having the cutting blade body 10 to the main body 2 fixed to the riding plucking machine C in this manner, the cutting blade body 10 is substantially mounted on the riding plucking machine C. The operation can be easily performed, and in the tea garden, the decrease in the operating rate of the riding plucking machine C is minimized, and the plucking of the tea leaves A can be performed efficiently.

(3) Reproduction of cutting blade unit and mounting on main body portion On the other hand, with respect to the cutting blade unit 1 provided with the dull cutting blade body 10 which has already been removed, the cutting unit is appropriately brought to a work place. Release the guide pin 13 and move the reciprocating drive 1
2 and disassemble the cutting blade body 10 and the cutting blade support guide plate 1
1 and the teeth 102 are sharpened. Then, the blade body 10 after the completion of the blade sharpening is again put into the blade supporting guide plate 1.
1 and assembling the reciprocating drive unit 12 to form a usable cutting blade unit 1 and wait for the next use. Then, when the sharpness of the cutting blade body 10 becomes dull, the regenerated cutting blade unit 1 is mounted on the main body 2 fixed to the riding plucking machine C in the same manner as described above.

[0044]

Other Embodiments The present invention is based on the above-described embodiments, but the following embodiments can be adopted based on the technical idea of the present invention.

[Embodiment in which the form of main body portion is changed]
First, in the basic embodiment described above, the traveling vehicle B
On the other hand, the tea mower unit U including the cutting blade unit 1 and the main body 2 is detachably attached.
The form of the main body 2 may be varied as follows. In other words, the form of the main body 2 in the basic embodiment described above is such that the frame member of the main body 2 holds members such as the air supply pipe 3 and the drive source 5. Are collectively removable from the traveling vehicle B, but in this embodiment, the main body 2 is configured as a part of a duct 45 provided on the traveling vehicle B, The members such as the source 5 are held on the traveling carriage B side. Specifically, as shown in FIG. 7, members such as the air supply pipe 3 and the drive source 5 are supported on this portion as a strength member that can be grasped as a monocoque frame at an introduction portion in the duct 45 of the traveling vehicle B. Things. By attaching the blade support guide plate 11 of the blade unit 1 to the duct 45, the tea mower unit U
Is constituted. That is, in this embodiment,
The main body 2 is integrally formed with the traveling vehicle B, and when the cutting blade unit 1 is attached to the traveling vehicle B, the tea cutter unit U is configured.

[Embodiment for Selecting a Plural Kind of Cutting Blade Units According to Work Form] In the basic embodiment described above, the present invention is applied to a plucking machine which is an example of a tea mower. However, it can also be applied to other tea mowers such as mowers, shallow mowers, light pruners, medium mowers and pruners used for tea plant management, or to trimmers used for non-tea plantation management. It is.

When the present invention is applied to such various types of tea mowers, the cutting blade unit 1 mounted on the main body 2 may be replaced by a blade having a different cutting blade form depending on the working mode. By preparing a plurality of types, a single main body 2 is adopted,
Since it can be used for shallow cutting, medium cutting, etc., the initial cost and running cost can be remarkably reduced as compared with a case where each tea cutter is purchased as a dedicated machine.

In the above-described basic embodiment, the rider-type pruning machine C constituted by combining the pruning machine unit U with the traveling carriage B has been described as an example of the tea pruning machine. As a form, a portable type having a handle attached to the plucking unit U, a self-propelled trolley attached to the plucking unit U, or a trolley moving on the management rail is assembled to the plucking unit U. It can take a form such as a rail running type.

[Embodiment in which a Driving Source is Provided for the Cutting Blade Unit] In the basic embodiment described above, the driving source 5 is provided in the main body 2. This is to reduce the weight of the cutting blade unit 1 in which the peripheral members of the cutting blade body 10 separated from the main body 2 are modularized. Accordingly, when a light source such as an oil motor or an electric motor is used as the drive source 5, the drive source 5 is connected to the reciprocating drive unit 1 in the cutting blade unit 1 as shown in FIG.
2 can be provided above.

When an oil motor is used as the drive source 5, the cutting blade unit 1 and the main body 2 can be separated from each other by appropriately detaching the middle of the hydraulic path with a one-touch coupling. By mounting the driving hydraulic pump on the traveling cart B or the like to which the unit 2 is fixed, the weight of the tea mower unit U can be reduced. Further, when an electric motor is used as the drive source 5, the cutting blade unit 1 and the main body 2 can be separated from each other by using a jack, a plug or the like so that the cutting blade unit 1 and the main body 2 can be freely attached and detached by using a jack, a plug, or the like. Further, by mounting a driving generator on the traveling carriage B or the like to which the main body 2 is fixed, the weight of the tea mower unit U can be reduced.

[Another Embodiment of the Locking Mechanism] In the basic embodiment described above, the locking mechanism is provided with a linear slit 16a formed in the side plate 16;
Although it was constituted by the pin 22a provided on the side plate 22,
The point is that any structure that can easily position the cutting blade unit 1 and the main body 2 and can couple the coupling elements at this time may be used. Can also.

The locking mechanism shown in FIG. 7 is such that the shape of the slit 16a is L-shaped so that the slit 16a and the pin 22a engage in a bayonet manner. With such a structure, when assembling the cutting blade unit 1 to the main body 2, when the pin 22a is located at the terminal end of the horizontal portion of the slit 16a, the guide plate 23 and the cutting blade support guide plate are provided. When the pin 22a is positioned at the lower end of the vertical portion of the slit 16a, the guide plate 23 and the cutting blade support guide plate 11 are positioned vertically. .

When the locking mechanism has such a structure, the cutting blade supporting guide plate 11 has a stepped horizontal portion as shown in FIGS. 7 (b) and 7 (c). When the guide plate 23 is placed on the lower horizontal portion, the upper surface of the higher horizontal portion is located above the upper surface of the guide plate 23. Does not hinder the transfer of

[Other Embodiments of Coupling Element] In the above-described basic embodiment, the projection 15A and the recess 50A are connected to each other by approaching each other in the horizontal direction. Although the configuration is such that the connection between the input shaft 15 and the output shaft 50 can be easily and reliably performed, the following embodiment can be adopted.

First, the coupling element shown in FIG. 8A has a configuration in which the convex portion 15A and the concave portion 50A are formed in a square shape so that they can be connected only when they approach each other in the vertical direction. .

The coupling element shown in FIG. 8B has a concave portion 50A formed on the input shaft 15 and a convex portion 15A formed on the output shaft 50. Further, in this embodiment, the input shaft 15 is formed. Is prevented from protruding from the upper surface of the casing 12A.

In the case of adopting the structure of the coupling element as in the above two embodiments, the protrusion 15A is formed by using the bayonet-type locking mechanism (slit 16a and pin 22a shown in FIG. 7). And the concave portion 50A can be coupled close to each other in the vertical direction. By adopting such a structure of the coupling element, when the input shaft 15 and the output shaft 50 are displaced in the front-rear direction, they cannot be connected to each other. Can be combined.

The coupling element shown in FIG. 8C uses the input shaft 15 and the output shaft 50 as coupling elements, and the shapes of the input shaft 15 and the output shaft 50 are rectangular as an example. Things. Then, the sleeve S is externally fitted to the output shaft 50 and the input shaft 15 so that both are connected.

Further, in addition to the above-described coupling elements, a flexible shaft (not shown) may be used to connect the output shaft 50 and the input shaft 15. The assembly of the blade unit 1 and the main body 2 is performed by the guide plate 23 and the cutting blade support guide plate 1.
Since only the positional relationship with 1 needs to be exactly adjusted, the assembling work can be further simplified.

[Embodiment with Different Shapes of Cutting Blade Unit] In the above-described basic embodiment, the frame member of the main body 2 is formed as shown in FIGS. To
Guide plate 2 located opposite and below lower frame 20
3 was used as part of the strength members,
As shown in FIG. 9, as an example of the strength member of this portion, a lower frame 24 to which a square steel pipe is applied may be used, and the guide plate 23 may be a part of the cutting blade unit 1.

That is, the configuration of the cutting blade unit 1 includes the guide plate 23 by integrally fixing the cutting blade support guide plate 11 and the guide plate 23, and this is detachably attached to the main body 2. Shall be attached to Guide plate 2
When another member is provided between 3 and the duct 45, even the other member may be a constituent member of the cutting blade unit 1.

In this embodiment, the cutting blade unit 1 is mounted on the main body 2 as shown in FIG.
3 is provided below the lower frame 24 so as to face the lower frame 24.
And the guide plate 23 is fixed to the lower frame 24 using screws 17 or the like. The lower plate 25 also functions as a part of the strength member of the cutting blade unit 1.

As shown in FIG. 9B, the lower surface plate 25 is bent to form a positioning portion 25a which is perpendicular to the guide plate 23, and the positioning portion 25a and the lower surface of the guide plate 23 are formed. Thus, the lower frame 24 can be reliably positioned. Further, as shown in FIG. 9C, the positioning portion 25 as described above is used.
By providing the positioning auxiliary plate 25b in opposition to a,
The lower frame 24 may be fitted between the positioning portion 25a and the positioning auxiliary plate 25b so that the lower frame 24 can be positioned more reliably.

As shown in FIG. 10, the lower frame 24 can be detached from the side plates 21 and 22. The mounting brackets 24a are formed at both ends of the lower frame 24. Mounting bracket 24a using buckle 26, bolt 27, etc.
And the side plates 21 and 22 are connected. In this case, the lower frame 24 is a component of the cutting blade unit 1 and is fixed to the guide plate 23 by means shown in FIG. The mounting bracket 24a is raised as high as possible, while the side plates 21 and 22 on which the mounting bracket 24a is assembled are formed as short members as infinitely as if the mounting bracket 24a was mounted.
May form a side plate of the main body 2.

[0065]

According to the present invention, the cutting blade 1 from the tea mower is provided.
0 and attachment of the cutting blade body 10 to the tea mower,
The cutting blade body 10, a cutting blade support guide plate 11 for supporting the cutting blade body 10, and the power transmitted from the drive source 5
And a reciprocating drive unit 12 for converting the reciprocating motion into a reciprocating motion. The reshaping blade unit 1 is integrally formed with the reciprocating motion. This makes it easy and quick. In addition, it is possible to modularize the main body 2 and the peripheral members of the cutting blade body 10 and the like, and it is possible to more rationally manufacture a tea cutter of different specifications.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a tea cutter equipped with a detachable cutting blade unit of the present invention, and an enlarged perspective view showing the tea cutter unit.

FIG. 2 is an enlarged perspective view showing a part of a cutting blade unit and a main body, a coupling element, and a locking mechanism.

FIG. 3 is a side view showing a cutting blade unit, a main body part, and a tea mower unit constituted by these;

FIG. 4 is an exploded perspective view showing a reciprocating drive unit.

FIG. 5 is a perspective view showing an embodiment in which the form of the main body is different.

FIG. 6 is a side view showing an embodiment including a driving source for the cutting blade unit.

FIG. 7 is a side view showing another embodiment of the locking mechanism.

FIG. 8 is a perspective view and a side view showing another embodiment of the coupling element.

FIG. 9 is a side view showing three embodiments in which a guide plate is a constituent member of the cutting blade unit, and how the cutting blade unit is attached to and detached from the main body.

FIG. 10 is a front view showing an embodiment in which the lower frame is a constituent member of the cutting blade unit.

FIG. 11 is a longitudinal sectional side view and a plan view showing a support structure of a cutting blade body in a conventional tea mower.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cutting blade unit 2 Main body part 3 Air blow pipe 3a Branch nozzle 5 Drive source 6 Assembled body 10 Cutting blade body 11 Cutting blade support guide plate 11a Hole 12 Reciprocating drive unit 12A Casing 13 Guide pin 14 Ecsen plate 14a Needle bearing 14b Bearing 15 Input shaft 15A Convex part 16 Side plate 16a Slit 17 Screw 20 Upper frame 21 Side plate 22 Side plate 22a Pin 23 Guide plate 23a Female screw hole 24 Lower frame 24a Mounting bracket 25 Lower plate 25a Positioning part 25b Positioning auxiliary plate 26 Buckle 27 Bolt 30 Fan unit Reference Signs List 40 endless track 41 leaf collecting container 45 duct 50 output shaft 50A recess 101 sliding part 102 tooth 103 eccentric plate receiving part A tea leaf B traveling cart C riding picking machine (tea cutting machine) F frame R rod SS Over Breakfast U tea mower unit

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Susumu Masuda 44-1 Sagara, Sagara-cho, Haibara-gun, Shizuoka F-term (reference) 2B075 HA09 HB03 HC01 HC11 HD03

Claims (6)

[Claims] 1. A tea cutting machine comprising a cutting blade unit having a cutting blade body reciprocally driven by an appropriate driving source and a main body supporting the cutting blade unit. The cutting blade support guide plate for supporting the cutting blade body, and a reciprocating drive unit for converting the power transmitted from the driving source into reciprocating motion of the cutting blade body, are configured as one assembly. A tea cutter comprising a detachable cutting blade unit, wherein the blade unit is detachably attached to a main body. 2. A cutting blade supporting guide plate in the cutting blade unit and a guide plate provided on a main body portion for guiding tea leaves cut by a cutting blade body are configured to be separable. A tea cutter comprising a detachable cutting blade unit according to claim 1. 3. The cutting blade unit includes a guide plate for guiding tea leaves cut by the cutting blade body, and the guide plate and the frame member of the main body can be separated. A tea cutter comprising the detachable cutting blade unit according to claim 1. 4. The driving source is supported by a main body, and is formed at a tip end of an output shaft of the driving source in a state where the cutting blade unit is mounted on the main body. 4. A tea cutter comprising a detachable cutting blade unit according to claim 1, wherein the coupling element is coupled to a coupling element formed at a distal end portion of an input shaft of the reciprocating drive unit. Machine. 5. The apparatus according to claim 1, wherein the main body and the cutting blade unit are provided with a pair of locking mechanisms capable of engaging with each other to perform positioning of both. A tea cutter comprising the detachable cutting blade unit according to 1, 2, 3, or 4. 6. The cutting blade unit mounted on the main body portion is appropriately selected from a plurality of types of cutting blade units having different cutting blade forms according to a work form. A tea cutter comprising the detachable cutting blade unit according to claim 1, 2, 3, 4, or 5.