JP3807346B2 - Tea cutter with detachable cutting blade unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a tea cutter, and in particular, a novel attachment and detachment capable of easily and quickly removing a cutting blade body from a tea cutter and attaching a cutting blade body to a tea cutter. The present invention relates to a tea cutter with a possible cutting blade unit.
[0002]
BACKGROUND OF THE INVENTION
  A tea-cutting machine used in a tea garden has a drive source mounted on an appropriate frame, and a cutting blade body reciprocated by the drive source and a tea leaf cut by teeth formed on the cutting blade body, for example, rearward And a guide plate for guiding to the leaf bag.
  And of course, the sharpness of the teeth decreases with use, so sharpening is achieved by sharpening the blade, and after a few more sharpenings, a new cutting blade is eventually formed. Replacement is required.
[0003]
  When removing the cutting blade body from the tea mower during such sharpening or replacement, the structure of the conventional tea cutting machine is such that the cutting blade body 10 'has a cutting blade support guide plate 11 as shown in FIG. Since the guide pin 13 'is attached to the ′, the guide pin 13 ′ is released, and the reciprocating drive portion 12 ′ is disassembled to release the connection portion between the drive mechanism and the cutting blade body 10 ′. Work is required.
[0004]
  However, since the tooth 102 'formed on the cutting blade body 10' is a sharp blade, the operator is required to be cautious, and two or more workers must perform the above operation while maintaining the left and right balance. Goodbye. Such a work form is very troublesome and takes a long time as a work performed by a tea farmer who is a user in the tea garden.
  In particular, when attaching the sharpened blade body 10 'to the tea cutter C', it is necessary to adjust the gap between the pair of upper and lower cutting blade bodies 10 ', and this gap adjustment work can be performed accurately. Is limited to skilled workers.
[0005]
  For this reason, at present, the manufacturer's service staff who has received a request from a tea farmer visits the user to perform the above-mentioned troublesome attachment / detachment work. I try to plan.
  On the other hand, the removed cutting blade body is brought back to the work place, the teeth are polished, and the work is carried out again under the user and reattached.
  Of course, in the case of a portable and small-sized and inexpensive tea cutter, there is room for avoiding a substantial decline in the operating rate using a spare tea farmer, but the self-propelled type that has become the mainstream recently. It is not appropriate to prepare a spare for the entire apparatus only for the maintenance of the cutting blade body because the tea cutters such as the rail type and the rail traveling type are expensive.
[0006]
  On the other hand, the cutting blade body of a tea cutter has the following unique problems in terms of technical aspects on the manufacturing side. In other words, the specifications of the tea mower have many common parts in that this is a device that causes teeth to act on tea trees, but there are a plucking machine, a mower, a shallow mower, a light pruner, and a middle mower. It is different for each device having a different cutting form such as a machine and a mowing machine, and a dedicated part corresponding to each specification is required.
[0007]
  Therefore, the manufacturer prepares several specifications for the prime mover, the main body including the motor, the cutting blade body, and the reciprocating drive, and selects the optimal combination for each. Thus, a plucking machine, a mowing machine, a shallow mowing machine, a light pruning machine, a middle mowing machine, a mowing machine, and the like are configured.
  Nonetheless, the combination pattern of the cutting blade body and the reciprocating drive unit is substantially fixed in accordance with the load for each cutting mode, and is rationalized in terms of manufacturing the above-described tea cutters of different specifications. There is still room for further improvement when trying to achieve this.
[0008]
  Therefore, as a result of further investigating the problems related to the maintenance of the cutting blade body by the user and the problems in manufacturing by the manufacturer that are not related to each other at the same time, the present inventor has achieved both purposes simultaneously. Based on the idea that this could be achieved, we tried to develop a new mechanism.
  In other words, if the cutting blade body and the reciprocating drive unit can be replaced with each other in an integrated state, the main body portion and the cutting blade peripheral member can be modularized. It has become possible to rationally manufacture, and furthermore, it has come to a specific idea that the user can easily replace the cutting blade body by replacing the unit.
[0009]
[Technical issues for which development was attempted]
  The present invention has been made on the basis of such background and idea, and it is possible to easily and quickly remove the cutting blade body from the tea cutter and attach the cutting blade body to the tea cutter. At the same time, it is a technical subject to develop a tea cutter with a new detachable cutting blade unit that can share the main body between different types of tea cutters.
[0010]
[Means for Solving the Problems]
  That is, the tea cutter with the detachable cutting blade unit according to claim 1 comprises a cutting blade unit comprising a cutting blade body reciprocally driven by an appropriate drive source, and a main body portion supporting the cutting blade unit. In the tea cutter or the like, the cutting blade unit includes a cutting blade support guide plate that supports the cutting blade body, and a reciprocating motion for converting the power transmitted from the drive source into the reciprocating motion of the cutting blade body. The drive unit is configured as one assembly.On the other hand, the drive source is supported with respect to the main body, and the cutting blade unit is attached to the main body with the distal end portion of the output shaft of the drive source. By connecting the formed coupling element and the coupling element formed at the distal end portion of the input shaft of the reciprocating drive unit, the cutting blade unit is detachably attached to the main body unit. Is composed of,The cutting blade support guide plate in the cutting blade unit and the guide plate provided in the main body part for guiding the tea branch leaf cut by the cutting blade body are configured to be detachable. is there.
  According to the present invention, since it is possible to attach and detach the cutting blade body, which has conventionally been a troublesome work, by unit replacement, it is possible to easily and quickly perform it even if it is not a maker who is familiar with the handling of equipment.
  In addition, each of the main body and the cutting blade peripheral member can be modularized, so that different specifications can be manufactured more rationally.
  Furthermore, the cutting blade body can be attached and detached easily and quickly.
  Furthermore, since the transmission path of the power supplied from the drive source to the cutting blade body can be simply performed in a series of operations for mounting the cutting blade unit to the main body, The time required for the attachment / detachment work can be remarkably shortened.
[0011]
  And claims2The tea-cutting machine provided with the detachable cutting blade unit described above includes a cutting blade unit including a cutting blade body that is reciprocally driven by an appropriate driving source, and a main body portion that supports the cutting blade unit. In the tea cutter and the like, the cutting blade unit includes a cutting blade support guide plate that supports the cutting blade body, and a reciprocating drive unit for converting the power transmitted from the drive source into the reciprocating motion of the cutting blade body. Configured as one assemblyOn the other hand, the drive source is supported with respect to the main body, and the cutting blade unit is attached to the main body with the distal end portion of the output shaft of the drive source. By connecting the formed coupling element and the coupling element formed at the distal end portion of the input shaft of the reciprocating drive unit, the cutting blade unit is detachably attached to the main body unit. Is composed of,The cutting blade unit includes a guide plate for guiding the tea leaves cut by the cutting blade body, and the guide plate and the frame member of the main body can be divided freely.
  According to this invention,The cutting blade body, which has been a troublesome work in the past, can be attached and detached by exchanging the unit, so that it can be easily and quickly performed even by a manufacturer who is not familiar with the handling of equipment.
  In addition, each of the main body and the cutting blade peripheral member can be modularized, so that different specifications can be manufactured more rationally.
  Furthermore, the cutting blade body can be attached and detached easily and quickly.
  Furthermore, since the transmission path of the power supplied from the drive source to the cutting blade body can be simply performed in a series of operations for mounting the cutting blade unit to the main body, The time required for the attachment / detachment work can be remarkably shortened.
[0012]
  Further claims3In addition to the above requirements, the tea cutter provided with the detachable cutting blade unit described above is a pair capable of positioning both of the main body and the cutting blade unit by engaging each other. This is characterized in that a locking mechanism is provided.
  According to this invention, the attachment / detachment operation of the cutting blade body can be performed accurately without requiring a particularly delicate operation.
[0013]
  MoreAnd claims4In addition to the above requirements, the tea cutter provided with the detachable cutting blade unit described above has a plurality of types of cutting blades having different cutting blade configurations depending on the work mode. It is characterized by being appropriately selected from the units.
  According to the present invention, a single main body can be used for picking, for shallow mowing and for intermediate mowing, etc., so that it is possible for a manufacturer to rationally manufacture a tea cutter with different specifications, For the user, the initial cost and running cost can be significantly reduced as compared with the case of purchasing individual tea machines as dedicated machines.
  The above problems can be solved by using the configuration of the invention described in each of the claims as a means.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, a tea-cutting machine provided with a detachable cutting blade unit according to the present invention will be described in detail with reference to the drawings. In addition, in this specification, a pruning machine for the purpose of harvesting tea leaves and a trimming machine, a shallow mower, a light pruning machine, which are used according to each stage for trimming the teacups for tea garden management, A mower, a trimming machine, a skirt trimming machine, and the like are collectively referred to as a tea mower. In addition, the tea mower may basically be a portable type, but in accordance with the recent trend of labor saving, etc., by combining this with an appropriate traveling mechanism, a self-propelled type, a rail type, a passenger type, etc. It is also possible to adopt various progress forms.
  It should be noted that the basic configuration of the tea-cutting machine is a configuration already known in the conventional apparatus, and a configuration that will be developed in the future can be applied in part.
[0015]
  In this embodiment, description will be made using a riding type plucking machine C as a tea cutter. As shown in FIG. 1, the riding type plucking machine C is configured to detachably attach a tea cutter unit U to a traveling carriage B, and the tea cutter unit U is attached to a tea leaf A. The cutting blade unit 1 that directly acts on the main body 2 is configured to be detachably attached to the main body 2.
[0016]
  Here, referring to the definitions of the cutting blade unit 1 and the main body 2, first, the cutting blade unit 1 directly acts on the tea leaves A, and as defined in claim 1, The cutting blade body 10, the cutting blade support guide plate 11 that supports the cutting blade body 10, and the reciprocating drive unit 12 for converting the power transmitted from the drive source 5 into the reciprocating motion of the cutting blade body 10 are combined. It is configured as an assembly.
  The main body 2 is a strength member that supports the cutting blade unit 1, and is configured by a member obtained by excluding various members included in the cutting blade unit 1 from the tea cutter unit U. In this embodiment, it is comprised by members, such as the air_pipe pipe | tube 3 and the drive source 5, and the frame member which supports these.
[0017]
  The main body 2 will be described in detail. As an example, the frame member of the main body 2 includes side plates 21 and 22 at both ends of the upper frame 20 to which lightweight members such as aluminum pipes parallel to the front and rear are appropriately applied. In addition, the guide plate 23 is provided below the side plates 21 and 22 so as to have a rectangular opening that is somewhat curved in front view.
[0018]
  And the outer side of the said side plate 22 is provided with the pin 22a engaged with the slit 16a in the cutting blade unit 1 mentioned later as shown in FIG.
  The guide plate 23 is located behind the cutting blade body 10, which will be described later. For example, a metal plate such as aluminum is bent to the arch side, and female screw holes 23a are formed at a plurality of locations along the longitudinal direction. To do.
[0019]
  Next, various members held by such a frame member will be described.
  The air duct 3 is provided in a recumbent state over the entire width of the upper frame 20 at a diagonally upper front side of the guide plate 23, and a large number of them are directed to the guide plate 23. Air supplied from a fan unit 30 driven by a drive source 5 described later is ejected from a branch nozzle 3a formed by branching.
[0020]
  Further, the drive source 5 is mounted so as to be held between the upper frames 20, and in this embodiment, a two-cycle engine or the like is applied as an example. In short, any electric motor, oil motor, or the like may be used as long as it can drive the cutting blade body 10 described later.
  An output shaft 50 projects from the lower surface of the drive source 5 and penetrates the fan unit 30, and a recess 50 </ b> A serving as a coupling element is formed at the lower end portion of the output shaft 50. The shape of the concave portion 50A corresponds to the shape of the convex portion 15A, which will be described later, and a portion defined by two straight lines separated from each other by the same dimension from the center line in the circular cross section is defined as an output shaft. It is set as the shape cut out over the fixed range upward from the lower end surface of 50.
[0021]
  The side plates 21 and 22 positioned on the left and right of the upper frame 20 are provided with an assembly 6 to which a metal pipe, which is an example of an assembly means for the traveling carriage B, is applied.
[0022]
  Next, the cutting blade unit 1 that constitutes the tea cutter unit U together with the main body 2 will be described in detail.
  This is a modularization of the peripheral members of the cutting blade body 10, and includes a pair of upper and lower cutting blade bodies 10, a cutting blade support guide plate 11 that slidably supports the cutting blade bodies 10, The reciprocating drive unit 12 for converting the power transmitted from the drive source 5 into the reciprocating motion of the cutting blade body 10 is configured as one assembly. The pair of upper and lower cutting blade bodies 10 are reciprocated alternately so that the tea leaves A are plucked by the clipper action of the teeth 102 formed on each cutting blade body 10.
[0023]
  Hereinafter, 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 material into an L shape in plan view as an example, and the longitudinal direction with respect to the sliding portion 101 that is a long side portion thereof. The teeth 102 are formed at an appropriate interval along a short side portion, and a rectangular eccentric plate receiving portion 103 with rounded corners is formed on the short side portion.
[0024]
  The cutting blade support guide plate 11 is a relatively thick metal member having sufficient rigidity, has a curved shape substantially along the teacup, and is substantially the same as the width of the main body 2. It has a width dimension. Then, a pair of upper and lower cutting blade bodies 10 are slidably attached to the cutting blade support guide plate 11 using guide pins 13. The cutting blade support guide plate 11 is formed with holes 11a at a plurality of locations along the longitudinal direction thereof.
[0025]
  The reciprocating drive unit 12 is assembled to one end of the cutting blade support guide plate 11, and the reciprocating drive unit 12 uses a so-called eccentric shaft mechanism, and the output shaft of the drive source 5 A mechanism for converting 50 rotational motion into linear reciprocating motion of the cutting blade body 10 is provided.
[0026]
  As shown in FIG. 4, the reciprocating drive unit 12 has a specific structure in which an eccentric plate 14 is provided on one end of the input shaft 15 so as to substantially overlap each other. . The two eccentric plates 14 are configured to have a phase difference of 180 °, and a needle bearing 14 a with a cage is fitted on each eccentric plate 14. Then, the eccentric plate 14 in which the needle bearing 14a is externally fitted is positioned in the eccentric plate receiving portion 103 of the pair of upper and lower cutting blade bodies 10. Further, the periphery of the eccentric plate receiving portion 103 of the cutting blade body 10 is accommodated in the casing 12A by inserting the input shaft 15 into the bearing 14b fixed to the casing 12A.
[0027]
  At this time, in this embodiment, the upper end portion of the input shaft 15 protrudes from the upper surface of the casing 12 </ b> A, and a convex portion 15 </ b> A serving as a coupling element is formed on the upper end portion of the input shaft 15. The shape of the convex portion 15A is made to correspond to the shape of the concave portion 50A, and the outside of the portion defined by two straight lines separated by the same dimension from the center line on both sides of the circular cross section is input. The shape is cut from the upper end surface of the shaft 15 downward over a certain range.
[0028]
  Further, as shown in FIG. 2, a U-shaped side plate 16 is erected on the side surface of the casing 12A on the cutting blade support guide plate 11 side. A slit 16a that engages with a pin 22a provided on the side plate 22 is formed.
[0029]
  The cutting blade unit 1 has the above-described structure as an example. When the eccentric plate 14 performs an eccentric motion by the rotation of the input shaft 15, the pair of upper and lower cutting blade bodies 10 reciprocate in a crossing direction. Thus, the tooth 102 moves like a clipper.
  In addition to the reciprocating drive unit 12 described above, the drive structure of the cutting blade body 10 is of a type that drives only one of the cutting blade bodies 10 or a combination of a bevel gear and a universal joint. Various configurations such as those can be adopted.
[0030]
  Thus, the said cutting blade unit 1 and the main-body part 2 have the structure mentioned above as an example, The tea-brushing machine unit U is comprised by assembling these mutually. Specifically, as shown in FIG. 3, the cutting blade support guide plate 11 is placed on the guide plate 23, and the slits 16 a formed in the side plate 16 are engaged with the pins 22 a provided on the side plate 22. Sometimes, the convex portion 15A and the concave portion 50A, which are coupling elements, are coupled to each other. Details of the work procedure at this time will be described later.
[0031]
  And the riding type plucking machine C which is an example of a tea-making machine is comprised by assembling | attaching the tea-making machine unit U comprised in this way with respect to the driving | running | working carriage B. As shown in FIG. Here, the traveling carriage B will be briefly described. This traveling carriage B is provided with an endless track 40 as a traveling body, a leaf container 41 and a duct 45 with respect to an appropriate frame F as shown in FIG. It consists of. Further, two rods R serving as connection elements with the tea cutter unit U are provided inside the frame F.
[0032]
  Then, after the rod R provided in the traveling carriage B is inserted into the two assemblies 6 provided in the main body 2 in the tea cutter unit U, the riding is performed by appropriately fixing. The type plucking machine C is configured.
[0033]
  The riding type plucking machine C, which is an example of a tea mower, has the configuration as described above as an example, and is shipped with an appropriate protective cover attached to the cutting blade body 10. In the tea garden, the attachment / detachment of the cutting blade unit 1 and the main body 2, that is, the substantial attachment / detachment operation of the cutting blade body 10 from the riding type plucking machine C is performed quickly and safely by the following procedure. .
[0034]
(1) Removing the blade unit
  When maintenance or polishing of the cutting blade body 10 of the tea cutter unit U in the riding type plucking machine C in use at the tea garden occurs, the operator stops the drive source 5 and stops the cutting blade body. After the protective cover is attached to 10, the cutting blade unit 1 is further removed by the following procedure.
[0035]
[Setting of coupling element]
  First, the operator rotates the input shaft 15 and the output shaft 50 having the convex portions 15A and the concave portions 50A, which are coupling elements in a coupled state, so that the longitudinal directions of both the side plate 16 and the output shaft 50 as shown in FIG. It is made to be parallel to the side plate 22.
  It should be noted that such an operation can be easily performed by appropriately marking the reciprocating drive unit 12 or the drive source 5 with positioning markings.
[0036]
[Release of locking mechanism and coupling element]
  And after removing the screw | thread 17, while holding | maintaining the cutting blade unit 1 as shown to Fig.3 (a) and releasing this, the coupling | bonding of the convex part 15A and the recessed part 50A which are the said coupling elements is cancelled | released, The engagement between the slit 16a, which is a 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 type picking machine C can be substantially used without performing a delicate operation such as maintaining the right and left balance. The body 10 can be removed easily and safely by one person.
[0037]
(2) Installation of new cutting blade unit
  Next, a separately prepared maintenance and polished cutting blade unit 10 having a cutting blade body 10 is attached to the main body 2 in the following procedure.
[0038]
[Setting of coupling element]
  First, as shown in FIG. 3A, the operator rotates the input shaft 15 and the output shaft 50 having the convex portions 15A and the concave portions 50A as coupling elements so that the longitudinal directions thereof are changed to the side plate 16 and the side plate 22, respectively. Make them parallel to each other.
[0039]
[Connection of locking mechanism and coupling element]
  Next, the cutting blade unit 1 is held and the cutting blade support guide plate 11 is placed on the guide plate 23. At this time, as shown in FIG. Then, with the slit 16a formed in the side plate 16 engaged, the cutting blade unit 1 is pushed into the main body 2 side, and the pin 22a is positioned at the terminal portion of the slit 16a.
  By such a series of operations, the convex portion 15A and the concave portion 50A, which are the coupling elements, are coupled to each other, and the centers of the input shaft 15 and the output shaft 50 overlap.
  At this time, if the cutting blade unit 1 is suspended from the main body 2 by using a suspension spring, such work can be easily performed.
[0040]
  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 to fix them.
  Thus, the cutting blade unit 10 having the cutting blade body 10 is assembled to the main body 2 fixed to the riding type plucking machine C, so that the cutting blade body 10 is substantially attached to the riding type plucking machine C. The work can be easily performed, and in the tea garden, a decrease in the operating rate of the riding type plucking machine C is minimized, and the tea leaves A can be plucked efficiently.
[0041]
(3) Regeneration of cutting blade unit and attachment to the main unit
  On the other hand, with respect to the cutting blade unit 1 having the cutting blade body 10 which has already been removed, the cutting blade unit 1 is appropriately brought into the work place, the guide pin 13 is released, the reciprocating drive unit 12 is disassembled and the cutting blade is removed. The body 10 is removed from the cutting blade support guide plate 11 and the teeth 102 are sharpened. Then, the cutting blade body 10 that has been sharpened is assembled again to the cutting blade support guide plate 11 and the reciprocating drive unit 12 is assembled to constitute the usable cutting blade unit 1 and wait for the next use.
  When the cutting blade body 10 becomes dull, the regenerated cutting blade unit 1 is attached to the main body 2 fixed to the riding type plucking machine C in the same manner as described above.
[0042]
[Other embodiments]
  Although the present invention is based on the above-described embodiment, the following embodiment can also be adopted based on the technical idea of the present invention.
[0043]
[Embodiment in which the form of the main body is different]
  First, in the basic embodiment, the tea cutter unit U including the cutting blade unit 1 and the main body 2 is detachably attached to the traveling carriage B. The two forms can be different as follows. That is, the form of the main body 2 in the previous basic embodiment is such that members such as the air pipe 3 and the drive source 5 are held with respect to the frame member of the main body 2. Can be removed from the traveling carriage B as a whole, but in this embodiment, the main body 2 is formed as a part of the duct 45 provided in the traveling carriage B, and the wind feed pipe 3 is driven. The members such as the source 5 are held on the traveling carriage B side.
  Specifically, as shown in FIG. 7, the introduction portion in the duct 45 of the traveling carriage B is used as a strength member that can be grasped as a monocoque frame, and members such as the air pipe 3 and the drive source 5 are supported on this portion. Is. A tea cutter unit U is configured by attaching the cutting blade support guide plate 11 in the cutting blade unit 1 to the duct 45. That is, in this embodiment, the main body 2 is configured integrally with the traveling carriage B, and when the cutting blade unit 1 is attached to the traveling carriage B, the tea cutter unit U is It will be composed.
[0044]
[Embodiment for selecting plural types of cutting blade units according to work mode]
  In addition, the basic embodiment described above is an application of the present invention to a plucking machine that is an example of a tea mower, but a mowing machine, a shallow mower, a light pruning machine, which are used for the management of tea plants, The present invention can also be applied to trimmers used for purposes other than tea harvester or tea garden management, such as intermediate and mowers.
[0045]
  When the present invention is applied to such various types of tea cutters, a plurality of types of cutting blade units 1 with different cutting blade configurations are prepared according to the working mode. By doing so, it is possible to use the single main body 2 for picking, for shallow mowing and for middle mowing, etc., so that the initial cost and Running costs can be significantly reduced.
[0046]
  Further, in the previous basic embodiment, the explanation was given by taking as an example the riding type plucking machine C configured by combining the plucking machine unit U with the traveling carriage B for the tea cutting machine. Is a portable type with a handle attached to the plucking machine unit U, a self-propelled carriage attached to the plucking machine unit U, or a rail running with a carriage that moves on the management rail attached to the plucking machine unit U. A form such as a formula can be adopted.
[0047]
[Embodiment having a drive source for the cutting blade unit]
  In addition, in the previous basic embodiment, the drive source 5 is provided for the main body 2, and this is a module in which peripheral members of the cutting blade body 10 separated from the main body 2 are modularized. This is to make the cut blade unit 1 lightweight. Therefore, 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 provided above the reciprocating drive unit 12 in the cutting blade unit 1 as shown in FIG. You can also
[0048]
  When an oil motor is used as the drive source 5, the cutting blade unit 1 and the main body 2 can be separated by appropriately detaching the middle of the hydraulic path with a one-touch coupling. By installing a hydraulic pump for driving on the traveling carriage B or the like to be fixed, the tea cutter unit U can be reduced in weight.
  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 by appropriately detaching the power supply wiring with a single touch using a jack, a plug, or the like. Furthermore, by installing a driving generator on the traveling carriage B or the like to which the main body 2 is fixed, the tea cutter unit U can be reduced in weight.
[0049]
[Other Embodiments of Locking Mechanism]
  In addition, the locking mechanism is constituted by a linear slit 16a formed in the side plate 16 and a pin 22a provided in the side plate 22 in the basic embodiment described above. Since the unit 1 and the main body 2 can be easily positioned and any structure can be used so that coupling elements can be coupled to each other at this time, the following embodiment can be employed.
[0050]
  The locking mechanism shown in FIG. 7 is configured such that the slit 16a and the pin 22a are engaged in a bayonet manner by making the shape of the slit 16a L-shaped. With such a structure, when the cutting blade unit 1 is assembled to the main body 2, the guide plate 23 and the cutting blade support guide plate when the pin 22 a is positioned at the terminal end of the horizontal portion of the slit 16 a. 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 vertically positioned. .
[0051]
  When the locking mechanism has such a structure, as shown in FIGS. 7B and 7C, the cutting blade support guide plate 11 has a horizontal portion with a different cross-sectional shape. When the guide plate 23 is placed on the horizontal portion of the position, the upper surface of the horizontal portion at the high position is located above the upper surface of the guide plate 23, so that the tea leaves A are transferred to the guide plate 23 side. There is no hindrance.
[0052]
[Other Embodiments of Coupling Element]
  Further, in the above-described basic embodiment, the coupling element is configured such that the convex portion 15A and the concave portion 50A can be coupled by approaching each other in the horizontal direction. Any structure that can be easily and reliably coupled to the output shaft 50 may be used, and the following embodiment can be employed.
[0053]
  First, the coupling element shown in FIG. 8A has a configuration in which the convex portions 15A and the concave portions 50A have a rectangular shape and can be coupled only when they approach each other in the vertical direction.
[0054]
  Further, 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 upper end portion of the input shaft 15 is formed. Is configured not to protrude from the upper surface of the casing 12A.
[0055]
  When adopting the structure of the coupling element as in the above-described two forms, the convex portion 15A and the concave portion 50A are formed by using the above-described bayonet-type locking mechanism (slit 16a and pin 22a shown in FIG. 7). Can be coupled close to each other in the vertical direction. By adopting such a coupling element structure, when the input shaft 15 and the output shaft 50 are displaced in the front-rear direction, they cannot be coupled to each other. Can be combined.
[0056]
  Further, the coupling element shown in FIG. 8C has the input shaft 15 and the output shaft 50 themselves as coupling elements, and the shapes of the input shaft 15 and the output shaft 50 are rectangular as an example. . The sleeve S is externally fitted to the output shaft 50 and the input shaft 15 so as to be coupled to each other.
[0057]
  In addition to the above-described coupling elements, although not shown, a flexible shaft may be used to connect the output shaft 50 and the input shaft 15. In this case, the cutting blade unit 1 Assembling between the main body 2 and the main body 2 requires only the positional relationship between the guide plate 23 and the cutting blade support guide plate 11 to be accurately matched, so that the assembling work can be further simplified.
[0058]
[Embodiments with different types of cutting blade units]
  In the basic embodiment described above, the frame member of the main body 2 is a guide plate 23 positioned facing the lower side of the upper frame 20 as shown in FIGS. 9 is used as a part of the strength member. As shown in FIG. 9, the strength member of this part uses a lower frame 24 to which a square steel pipe is applied as an example, and the guide plate 23 is rather a cutting blade. A part of the unit 1 may be used.
[0059]
  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 is detachably attached to the main body 2. And Of course, when another member is provided between the guide plate 23 and the duct 45, the member up to that member may be used as a constituent member of the cutting blade unit 1.
[0060]
  The cutting blade unit 1 according to this embodiment is mounted on the main body 2 by providing a lower surface plate 25 so as to face the lower side of the guide plate 23 as shown in FIG. It is assumed that the lower frame 24 is held between the lower plate 25 and the lower plate 25 and the guide plate 23 is fixed to the lower frame 24 using screws 17 or the like. The lower surface plate 25 also functions as a part of the strength member of the cutting blade unit 1.
[0061]
  Further, as shown in FIG. 9B, the lower surface plate 25 is bent to form a positioning portion 25 a that is a surface perpendicular to the guide plate 23, and the positioning portion 25 a and the lower surface of the guide plate 23 lower the lower portion. It is also possible to adopt a structure that can reliably position the frame 24.
  Further, as shown in FIG. 9 (c), by providing the positioning auxiliary plate 25b so as to face the positioning portion 25a as described above, the lower frame 24 is fitted between the positioning portion 25a and the positioning auxiliary plate 25b. It is also possible to have a structure in which the lower frame 24 can be positioned more reliably by being stuck.
[0062]
  Further, as shown in FIG. 10, the lower frame 24 can be configured to be removable from the side plate 21 and the side plate 22, and mounting brackets 24a are formed at both ends of the lower frame 24, and a buckle 26 or The mounting bracket 24a is connected to the side plate 21 and the side plate 22 using bolts 27 and the like. In this case, the lower frame 24 is a constituent member of the cutting blade unit 1 and is fixed to the guide plate 23 by the means shown in FIG.
  The mounting bracket 24a is raised as high as possible. On the other hand, the side plate 21 and the side plate 22 to which the mounting bracket 24a is assembled are used as short members as if the mounting bracket 24a forms the side plate of the main body 2. Even if it takes a form, there is no problem.
[0063]
【The invention's effect】
  According to the present invention, the cutting blade body 10 and the cutting blade support guide plate that supports the cutting blade body 10 are attached to the tea cutter to remove the cutting blade body 10 and attach the cutting blade body 10 to the tea cutter. 11 and a reciprocating drive unit 12 for converting the power transmitted from the drive source 5 into the reciprocating motion of the cutting blade body 10, the cutting blade unit 1 is configured. Can be easily and quickly performed by detachably configuring the main body 2 of the tea cutter. In addition, the main body 2 and the cutting blade body 10 peripheral members can be modularized, and a tea cutter with different specifications can be manufactured more rationally.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a tea cutter 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 cutting blade unit, a part of a main body, a coupling element, and a locking mechanism.
FIG. 3 is a side view showing a cutting blade unit, a main body, and a tea cutter 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 in which a driving source is provided 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 a coupling element.
FIG. 9 is a side view showing three types of embodiments in which a guide plate is a constituent member of a 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 side view and a plan view showing a support structure of a cutting blade body in a conventional tea cutter.
[Explanation of symbols]
  1 Cutting blade unit
  2 Body
  3 Air pipe
  3a Branch nozzle
  5 Drive source
  6 Assemblies
  10 Cutting blade
  11 Cutting blade support guide plate
  11a hole
  12 Reciprocating drive
  12A casing
  13 Guide pin
  14 eccentric plate
  14a Needle bearing
  14b Bearing
  15 Input shaft
  15A Convex
  16 Side plate
  16a slit
  17 screw
  20 Upper frame
  21 Side plate
  22 Side plate
  22a pin
  23 Information board
  23a Female screw hole
  24 Lower frame
  24a Mounting bracket
  25 Bottom plate
  25a Positioning part
  25b Positioning auxiliary plate
  26 buckle
  27 volts
  30 fan units
  40 endless orbit
  41 Leaf container
  45 Duct
  50 output shaft
  50A recess
  101 Sliding part
  102 teeth
  103 eccentric plate receiving part
  A tea leaves
  B Traveling cart
  C Ride type picking machine (tea mower)
  F frame
  R rod
  S sleeve
  U Tea Crusher Unit

Claims (4)

In a tea cutter or the like that includes a cutting blade unit that includes a cutting blade body that is reciprocally driven by an appropriate drive source, and a main body that supports the cutting blade unit, the cutting blade unit includes: supporting the blade guide guide plate, which power transmitted from a drive source configured and reciprocating drive unit for converting the reciprocating motion of the cutting blade body as a set solid, whereas, the drive source Is supported with respect to the main body, and the coupling element formed at the tip of the output shaft of the drive source in a state where the cutting blade unit is attached to the main body, and the reciprocating drive The cutting blade unit is configured to be detachably attached to the main body by coupling with a coupling element formed at a tip portion of the input shaft of the portion, and the cutting blade Cutting blade support in unit Tea with a detachable cutting blade unit, characterized in that the guide plate and the guide plate provided in the main body part for guiding the tea leaves cut by the cutting blade body can be divided. Mower. In a tea cutter or the like that includes a cutting blade unit that includes a cutting blade body that is reciprocally driven by an appropriate drive source, and a main body that supports the cutting blade unit, the cutting blade unit includes: supporting the blade guide guide plate, which power transmitted from a drive source configured and reciprocating drive unit for converting the reciprocating motion of the cutting blade body as a set solid, whereas, the drive source Is supported with respect to the main body, and the coupling element formed at the tip of the output shaft of the drive source in a state where the cutting blade unit is attached to the main body, and the reciprocating drive The cutting blade unit is configured to be detachably attached to the main body by coupling with a coupling element formed at a tip portion of the input shaft of the portion, and the cutting blade The unit is a cutting blade body. Comprises a guide plate for guiding the tea leaves that are mowed Te, the guide plate and brown mower which comprises a detachable cutting blade unit, characterized in that the freely divided between the frame member of the main body portion. The said main-body part and the said cutting-blade unit are provided with a pair of latching mechanism which can position both by engaging mutually, The 1 or 2 characterized by the above-mentioned. A tea cutter with a detachable cutting blade unit. Claim 1, 2 mowing blade unit attached to said body portion, characterized in that one which is appropriately selected from among a plurality of kinds of cutting blade unit with different cutting blade forms depending on the working mode Or a tea-cutting machine comprising the detachable cutting blade unit according to 3 ;

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