JPS5930663Y2 - Vertical adjustment device for tea leaf cutting body in semi-self-propelled tea picking machine - Google Patents

Description

[Detailed description of the invention] In conventional semi-self-propelled tea picking machines, etc., fine vertical adjustment of the tea leaf cutting body with respect to the tea plant is performed using a compression spring installed in the front wheel depending on the magnitude of the downward pressure of the running wheel by the operator. There is a method in which the front part of the aircraft moves up and down by expanding and contracting, and the aircraft rotates up and down using the rear wheels as a fulcrum.

However, with this method, the tea leaf reaping body is located near the center of the machine in the longitudinal direction, so the vertical movement of the tea leaf reaping body is small compared to the up and down movement of the traveling knob, and the tea leaf reaping body can be moved to the uneven upper surface of the tea ridge. In addition, since the rear wheel is the fulcrum and the travel handle located ahead of the front wheel moves the aircraft up and down using the elasticity of the compression spring installed on the front wheel, there is always pressure on the ground contact area of the front wheel. In addition to this, the rolling and maneuverability of the front wheels are poor, and it is difficult for the front wheels to adapt to the unevenness of the ground, making it difficult to align the tea leaf cutting body with the top surface of the tea ridges.

Furthermore, the ground pressure of the rear drive wheels that perform the driving action is poor, making them prone to slipping, especially when the ground is covered with grass, etc., and the progress is often poor. As an adjustment method, an adjustment knob is provided directly connected to the tea leaf reaping body, and the operator grasps the traveling handle with one hand and the adjustment handle of the tea leaf reaping body with the other hand, and operates them separately. Although there is a way,
This is technically difficult to operate smoothly, and with any of the above methods, when cutting new shoots, old sweets may be mixed in or the cutting may be too shallow.
The quality of the tea often deteriorated, resulting in poor productivity.

Therefore, in order to eliminate the above-mentioned defects, the present invention has been developed by attaching the lower end of the travel handle to the front part of the aircraft, which has a front wheel at the front and a drive wheel at the rear, so that it can rotate freely back and forth, and tensioning it rearward with a spring. At the same time, a support is installed and a lifting guide with a tea leaf reaping body is fitted to it. The wheel on the upper end of the support is connected to the lifting guide, and the tea leaf reaping body is suspended by the rope so that it can be raised and lowered freely. The distance between the wheel and the wheel at the front of the machine changes, and the rope operates to move the tea leaf harvesting body up and down.In addition to being able to move the tea leaf harvesting body up and down with light operation using eugenic power, it is also easy to use when the ground is uneven. Even if the front wheel falls into a recess or runs over a protrusion, the machine operates using the grip of the handle as a fulcrum, so there is little vertical movement of the tea leaf cutting body, and the front wheel and drive wheel roll smoothly. This invention relates to a vertical adjustment device for a tea leaf harvesting body in a semi-self-propelled tea picking machine which has good performance and can harvest tea confectionery well.

To explain the structure of one embodiment of the present invention shown in the drawings, 1 is a body whose front end is curved upward and the curved part is fitted into the rear mounting tube 3 of the vertical tube 2 so as to be rotatable left and right. A gear housing 4 is attached to the rear end, and a driving wheel 5 is pivotally supported thereon, and a lower end of a support column 6 is rotatably fitted into the vertical tube 2 to support the vertical tube 2.
A front wheel 7 is rotatably supported below the vertical tube 2, an L-shaped support 1 with a lock pin 8 is fixed to the upper part of the front surface of the vertical tube 2, and a wheel 10 is pivotally attached to the lower part.

Reference numeral 11 denotes a fan-shaped adjustment piece fitted into the support metal 9, whose lower end is pivoted to the support metal 9 by a shaft rod 12, and several pin holes 13 are arranged in parallel at eugenic intervals in the arcuate upper wall. do.

Reference numeral 14 denotes a T-shaped running handle, the lower end of the vertical rod of which is bent rearward and the tip fixed to the lower end of the adjustment ring 11; A lock lever 16 is attached to the rear surface so that it can be raised and lowered, a stopper rod 17 is fixed to the intermediate portion, and a rolling wheel 18 is pivoted to the lower front of the curved portion.

Reference numerals 19 and 20 are a handle and a hoist wheel of the hoist 15.

Therefore, the service rod 2 fixed to the stop rod 17 and the support metal 9
A spring 22 is stretched between the spring 22 and the spring 22.
The running handle 14 is supported by zero elasticity, while the lock lever 16 and the lock pin 8 are connected by a wire 23, and the lock pin 8 is raised by raising the lock lever 16 as shown in FIG. When the lock lever 16 is lowered, the lock pin 8 is pulled out onto the pin hole 13.
so that it descends and enters the pin hole 13.

Reference numeral 24 denotes an arm that is rotatably fitted to the upper end of the support column 6, and a wheel 25 is pivotally supported thereon.

26 is a lifting guide, and upper and lower guide wheels 2 are provided before and after it.
The support 6 is held by 7 and fitted onto the support 6 so as to be able to move up and down.
After the rope 28 of the hoisting wheel 20 is passed around the rolling wheels 18, 10, 25, its tip is attached to the lifting guide metal 26, and the lifting guide metal 26 is suspended.

Reference numeral 29 denotes an L-shaped support rod, the middle part of its vertical piece is pivotally connected to the lifting guide 26 with a pin 30, the upper part is supported by a locking metal 31, and a tightening lever 32 is attached to the upper end of the support rod 29. Attach the clamp 33.

34 denotes a tea leaf reaping body attached to the support rod 29, and 34 is a machine housing of the tea leaf reaping body a, which is shaped like an oblong rectangular cylinder with openings at the front and back, and has a bottom plate shaped like a concave arc to fit the upper surface of the tea ridges. form,
The one-side cylinder 35 is rotatably fitted to the horizontal piece of the support rod 29 in the front-rear direction, and an operating knob 36 is attached to the other side of the upper surface so that it can be moved horizontally and vertically. .

37 is an arc-shaped clipper blade installed along the front end of the bottom plate of the machine casing 34; 38 is an arc-shaped exhaust pipe horizontally installed diagonally above and in front of the clipper blade 37, and the other side end is closed and several exhaust ports 39 are arranged in parallel at appropriate intervals along the entire length diagonally at the rear and lower side.

40. 41 is a blower and a prime mover installed in series on one side of the machine housing 34, 42 is a gear housing attached to the outside of one side of the machine housing 34, and although not shown, the blower is attached to the driving shaft of the prime mover 41. A 400° wind turbine shaft is connected, and the downward protrusion of the wind turbine shaft and the clipper blade 37 are connected by a deceleration transmission mechanism to drive the clipper blade 37 from side to side. The input shaft is connected to the belt transmission mechanism 43, the power output shaft of the gear housing 42 and the power intake shaft of the gear housing 4 are connected to each other by the flexible shaft 44, and the power input shaft and the axle of the drive wheel 5 are connected to the worm gear mechanism. 45, respectively.

Reference numeral 46 denotes a fixing rod whose base end is pivoted to the side of the intermediate 1 on the machine casing 34, and is inserted into the clamp 33.

Reference numeral 47 indicates a leaf collection bag attached to the rear end outlet of the machine case 34, and reference numeral 48 indicates a brown furrow.

Next, its effect will be explained.

The lock lever 16 is raised as shown in FIG. 2, the lock pin 8 is pulled out from the pin hole 13, and the lever 32 is loosened.

Then, the worker on one side holds the nodule 14, and the worker on the other side holds the nodle 36 to support the machine body 1 and the reaping body a, and then harvest the tea leaves as shown in Fig. 3. The machine body 1 is placed in the l-side sleeping space of the brown furrow 48, and the worker on the other side is placed in the space on the other side.

At that time, the operator on the first side uses the handle 19 to lift the hoist 15.
The rope 28 is let out by operating the hoisting guide 26 along the support column 6, raising and lowering one side of the reaping body a attached to it via the support rod 29, and at the same time starting work on the other side. The operator moves the handle 36 horizontally or vertically according to the width, height, etc. of the brown furrow 48, and the operator on the other side supports the handle 36 in a comfortable position and moves the machine housing of the reaping body a. The bottom plate 34 is made to fit one narrow part of the upper surface of the brown ridge 48.

When the prime mover 41 starts operating, the wind turbine shaft rotates together with the driving shaft to create wind in the blower 40. The wind is sent into the exhaust pipe 29 and sent through several exhaust ports 30 to the wind turbine shaft. Box 3
The hair is sprayed uniformly onto the clipper blade 37 over the entire width of the clipper blade 37, passes through the machine housing 34, and reaches the collection bag 47.

At the same time, the clipper blade 37 is driven left and right from the wind turbine shaft through the transmission mechanism at a low speed that is optimal for harvesting sweets, and the transmission mechanism 43 and the gear mechanism in the gear case 42 and the transmission mechanism 44
The drive wheels 5 rotate at a low speed through the angle 45, and the machine runs slowly.

Therefore, the tea confections on one side half of the upper surface of the tea ridge 48 are cut from the petiole base of new tea leaves by the clipper blade 37 along its shape, and at the same time, the cut tea confections are removed by the wind blown from the exhaust port 30 by the clipper blade. 37, passes through the inside of the machine casing 34, reaches inside the collection bag 47, and is stored therein.

In the middle of the work, when finely adjusting the reaping body a up and down according to the unevenness of the upper surface of the brown furrow 48, the worker on the first side pushes the nodule 14 diagonally forward and downward, and the handle 14 springs up. 220, resisting the elasticity and moving the second shaft around the shaft 12.
As the wheel 18 rotates counterclockwise in the figure, the wheel 18 approaches the wheel 10 and the distance between them becomes shorter, so the guide bar 26 with the reaping body a moves downward due to the shortened length. When the handle 14 is raised, one side of the reaping body a is lowered, and on the other hand, when the handle 14 is lifted up, the handle 14 moves to the second position around the shaft 12.
As it rotates clockwise in the figure, the wheel 18 separates from the wheel 10 and the distance between them becomes longer, so the guide bar 26 with the reaping body a moves upward due to the increased length, and the reaping body a One side of rises.

In addition, when the operator on the other side moves the handle 36 up and down, the reaping body a moves up and down using the horizontal piece of the support rod 29 as a fulcrum, and the bottom plate of the machine casing 34 of the reaping body a is moved by the operation of both operators. It can be adapted to the unevenness of the upper surface of the brown ridges 48.

If the ground is uneven and the front wheel 7 falls into a depression or rides on a convex part, the worker on the first side is holding the handle 14, so that grip becomes a fulcrum, and the front wheel 7 When it falls, the handle 14 rotates clockwise in FIG. The fulcrum is the second
Rotating counterclockwise in the figure, the l side of the cutting body a descends,
The work can be continued because there is little change in the ground height of one side of the cutting body a due to unevenness of the ground.

Furthermore, when the worker on the other side operates the handle 46 back and forth,
The reaping body a rotates back and forth using the support 6 as a fulcrum, and the machine casing 34
The arc of the bottom plate can be matched to the shape of the upper surface of the brown ridges 48.

When the handle 14 is operated to the left or right according to the curve of the brown ridge 48, the front wheels 7 turn left and right using the bent portion of the front end of the machine body 1 as a fulcrum, and the machine changes its traveling direction and runs along the brown ridge 48. At the end of the brown furrow 48, the direction of the machine can be changed in a small turn by changing the angle of the front wheel 7 by more than 90 degrees.

Furthermore, when transporting or storing the machine, if the handle 14 is rotated back and forth as appropriate and the lock lever 16 is lowered, the lock pin 8 enters the pin hole 13 and the handle 14 is adjusted as described above. Fix it to Aircraft 1 in this state.

When the lever 32 is tightened and the fixing rod 46 is clamped by the clamp 33, the reaping body a is fixed to the machine body 1 via the fixing rod 46.

Note that the same effect can be achieved even if a rotary rotary blade type or horizontal rotary blade type tea leaf reaping body is attached in place of the clipper blade type tea leaf reaping body.

In the present invention, the vertical adjustment device of the tea leaf reaping body in the semi-self-propelled tea plucking machine is constructed as described above, so that by operating the travel handle back and forth, the travel nodle rotates using its lower end pivot point as a fulcrum. The wheels attached to the lower part of the running nozzle move closer to or move away from the wheels installed on the aircraft body, and the distance between them changes, and the rope moves by the changed length, thereby suspending the rope. The height of the cutting body above the ground changes as it moves up and down.

Therefore, by moving the traveling handle lightly and appropriately back and forth using eugenic power according to the unevenness of the upper surface of the tea ridge, the reaping body can be moved up and down arbitrarily finely, and the reaping body can appropriately advance along the unevenness of the upper surface of the tea ridge. In addition to reaping new tea leaves on the top surface and preventing old leaves from getting into the new shoots, improving the quality of the tea, the reaping body is suspended and supported by the rope fed out from the winder of the running handle. The body moves up and down in a manner similar to the back and forth movement of the running body.

Furthermore, if the front wheel falls into an uneven ground or rides on a convex part during work, the travel handle should be rotated at the bottom pivot point using the part the worker is holding as a fulcrum. The aircraft operates by rotating backwards or forwards, and the wheels of the travel handle automatically move away from or approach the wheels of the aircraft, changing the distance between them, and changing the length of the wheels. The rope moves by the amount of change, and the reaping body moves up and down, and the change in the height Q of the reaping body above the ground due to unevenness of the ground is small, so that reaping of tea leaves can be continued smoothly and satisfactorily.

In addition, since the running handle is pulled rearward by a spring and supported, there is less force pressing the front wheels against the ground when the steering wheel moves back and forth, and the front wheels and drive wheels roll easily, resulting in good running performance. Moreover, by easily operating the hoist installed at the hand of the travel handle, the reaping body can be moved up and down arbitrarily and moved to the desired position according to the height of the tea ridge, and the operation is simple even while traveling. It has a simple structure, can be manufactured easily and inexpensively, and its operation is smooth and accurate.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a semi-self-propelled tea peeling machine according to an embodiment of the present invention, and FIG. 2 is a side view of the same, with the working part cut away. FIG. 3 is a partially cutaway front view of the main part showing the working state. 1... Aircraft, 5... Drive wheels, 6...
...Strut, T...Front wheel, 9...Support, 10,18,25...Rotary wheel, 14...
・・Travel handle, 15・・Hoist, 22・
... Spring, 26 ... Lifting guide metal,
28...Rope, 29...Support rod, a
・・・・・・Tea leaf reaping body.

Claims (1)

[Scope of utility model registration request] A support and a strut are installed in the front part of the aircraft body, which has a front wheel in front and a drive wheel in the rear. The hoist rope is attached to the above-mentioned running wheel, and the rope of the hoist attached to the handle is run in sequence. Harvesting tea leaves with a semi-self-propelled tea picking machine, which is constructed by extending the wheels over the upper end and connecting the tip to an elevating guide, and attaching one side of the tea leaf reaping body to a support rod attached to the elevating guide. Body vertical adjustment device.