JPH0234570B2 - JISOGATACHATSUMIKINIOKERUKAJITORISOCHI - Google Patents

Description

[Detailed Description of the Invention] Since a self-propelled tea plucking machine must run along the tea ridges, its steering plays a very important role in the progress of the machine.

However, in the conventional self-propelled tea picking machine of this type, two workers are located on both sides of the tea furrow, and the operator on one side holds the steering wheel of the machine and the one on the reaping machine. Operate the operation handle on the side,
The worker on the other side, the assistant, is operating the operating handle on the other side of the reaper.

Therefore, the operator on the driving side is responsible for steering the machine and
The reaper must be moved up and down to match the tea plants.

By the way, to steer the machine, use the left hand to operate the steering wheel by prying the entire vehicle body to the left or right along the tea ridges, and to adjust the reaper up and down, use the right hand to adjust it to the height of the tea plants. The operator is lifting or lowering the operating handle.

As a result, the operator has to perform different movements with his left and right hands, which requires a great deal of effort and nerves, resulting in great fatigue. Since the attachment does not move laterally, if the machine is not steered properly, the reaping machine and the vehicle body will deviate from the tea furrow, causing the tea leaves to be picked too shallowly or too deeply, resulting in a decline in the quality of the fresh leaves. There were some drawbacks, such as causing problems.

Therefore, the present invention has been developed to improve the above-mentioned defects by eliminating the need for manual steering of the machine and using a structure in which the steering handle of the machine is always held in contact with the worker's body using the action of a spring. ,
The steering handle operates in response to the worker's body movements, and the machine is steered to determine the direction of travel, allowing the machine to be steered as desired. on the other hand,
Therefore, the worker's hands can be used only for adjusting the harvester up and down on the tea plant, simplifying the manual operation of the worker, improving operability, and allowing the worker to perform the picking work by himself. The present invention relates to a steering device for a self-propelled tea picker, which is characterized by the following.

To explain the structure of one embodiment of the present invention shown in the drawings, 1 is a gate-shaped vehicle body that straddles brown ridges;
A bearing 2 is installed at the lower front part of one side, and a support column 3 is installed at the middle part.
A driving wheel 4 is rotatably mounted on the rear portion of the vehicle, and a side wheel 5 is rotatably supported on the other side. 6 is a front wheel, and a frame 8 supports the front wheel so that it can rotate freely.
The upper vertical shaft 9 is rotatably fitted into the bearing 2, and one end of the spring 10 fitted into the bearing 2 is connected to the vehicle body 1.
Then, the other end is attached to the vertical shaft 9, and the spring 10 presses the vertical shaft 9 so that the front wheel 6 is tilted forward on the other side with respect to the driving wheel 4. Reference numeral 11 denotes a steering handle, the lower end of which is fixed to the upper part of the outer surface of the frame 8, and the upper part bent forward to form a support piece 12 that touches the waist area of the worker's body.

Reference numerals 13 and 14 denote a prime mover and a blower mounted on one side of the vehicle body 1, and the driving shaft of the prime mover 13 and the windmill shaft of the blower 14 are connected, and the windmill shaft of the blower 14 and the axle of the drive wheel 4 are connected to a speed reducer. They are linked by a transmission mechanism with 15 interposed therebetween. Reference numeral 16 denotes a lifting platform attached to the column 3 so as to be movable up and down, and a horizontal shaft 17 facing forward is provided at the lower end of the platform.

Reference numeral 18 denotes a support rod that is rotatably fitted into a vertical tube 19 in the middle of the vehicle body 1, and a hoist 20 is attached to the tip of the support rod. 21 is the handle, 22 is a hanging spring, and a hanging metal 23 is attached to the tip thereof.

1 indicates a rotary type reaper located approximately in the first half of the vehicle body 1, and 24 is an oblong machine casing with its front open, and the bottom surface is formed into a concave arc shape to match the upper surface of the brown furrow. A takeout gutter 25 is provided protruding from the rear side,
The rotary blades 26 on both sides are mounted on shafts in the front part of the machine casing 24, and a conveyance chain 27 is installed in the rear part. 28,2
Reference numeral 9 designates operation handles on both sides that are attached to the center and one side of the machine casing 24 so as to be adjustable in vertical movement, and 30 is a reaper stabilizing plate that is connected to the rear of the bottom plate of the machine casing 24. Thus, a longitudinal mounting tube 31 provided on the side of the bottom surface 1 of the machine casing 24 is rotatably fitted to the horizontal shaft 17, and a lateral adjustment shaft is mounted horizontally over the center of the machine casing 24. A hanger 23 is attached to 32 so as to be adjustable in left and right movement, and the center part of the machine casing 24 is elastically suspended by the spring 22, and the blower 14, the windmill shaft, the rotary blade 26, and the power intake shaft of the conveyance chain 27 are connected to each other. Connected by a transmission mechanism.

33 is a pressure-feeding duct that communicates the outlet of the blower 14 with the inlet of the take-out gutter 25; 34 is a blow-up duct whose base end is connected to the outlet of the take-out gutter 25; I will have it come within 35 days. 36 indicates a worker.

Next, its effect will be explained. The vehicle body 1 is placed over the tea ridges, and wheels 4, 6, and 5 are arranged between the tea ridges on both sides.

Therefore, depending on the height of the tea plants in the tea ridge, the winder 2
The height of the reaper a relative to the upper surface of the brown furrow is adjusted by rotating the handle 21 of the handle 21 to raise or lower the reaper a via the spring 22.

Next, depending on the shape of the upper surface of the brown ridge, move the hanger 32 to the left or right as appropriate along the adjustment shaft 32, and the center of gravity of the reaper a will shift accordingly, and the reaper will automatically move up and down. While the stand 16 ascends or descends along the support 3, the reaping machine a rotates around the horizontal shaft 17, and the inclination angle of the reaping machine a changes to the side to suit the plucking angle that matches the upper surface of the brown furrow. adjusted to.

Therefore, the prime mover 13 is started, and then, as shown in FIG. Its front wheel 6
After rotating the steering handle 11 integrally with the vertical shaft 9 against the elasticity of the spring 10 in the clockwise direction in FIG. 4 using it as a fulcrum, as shown in FIG.
When the operator 36 enters the other side of the abutment piece 12 of the steering handle 11 and releases the abutment piece 12, the elasticity of the spring 10 causes the abutment piece 12 to move toward the operator 3.
It is held in contact with the waist of 6.

Next, the operator 36 presses the operating handle 2 with both hands.
8 and 29 and start operating the machine, the machine moves forward at an appropriate low speed due to the driving action of the wheels 4, so that the operator 36 can move the machine according to the shape and unevenness of the upper surface of the tea ridge. By operating the operating handles 28 and 29 as appropriate, the lifting platform 16 is moved along the support 3 to raise and lower the reaper a, or
Rotate the reaping machine a using the horizontal shaft 17 as a fulcrum to adjust the sideward inclination angle of the reaping machine a, and align the bottom surface of the machine housing 24 with the stabilizer plate 30 with the top surface of the brown ridge, and use the bottom surface to adjust the top surface of the brown ridge. As the tea leaves are stroked, the tea leaves on one side of the upper surface of the tea ridge are picked by the rotary blade 26 according to the shape and unevenness of the upper surface, and the picked fresh leaves are pushed into the machine casing 24. It is transferred to the first side by the conveyance chain 27 and enters the take-out gutter 25, and is blown into the storage bag 35 by the blowing air from the blower 14 through the blow-up duct 34 and stored therein.

On the other hand, if the worker 36 moves to the first side or the other side while driving, the steering handle 11 with the front wheel 6 follows the worker 36 with its contact piece 12 in contact with the worker 36, and the vertical axis 9 The front wheel 6 rotates around the fulcrum, and the machine runs in the direction that the front wheel 6 points. That is, as shown in FIG. 6, when the operator 36 is located at the front center of one side of the vehicle body 1 and operates the steering wheel 11 so that the front wheels 6 face in the same direction as the drive wheels 4. , the machine moves straight.

As shown in FIG. 7, when the operator 36 approaches the other side, the front wheels 6 as well as the steering handle 11 move diagonally forward to the other side, so that the machine runs while turning to the other side.

As shown in FIG.
Since the machine is moving toward the front side, the machine runs while turning toward the first side.

Therefore, by the operator 36 moving to one side or the other side as appropriate depending on the curve of the tea ridge, the machine moves along the tea ridge and always aligns the bottom surface of the reaper a with the top surface of the tea ridge. Able to perform work.

Note that even if a clipper-type reaper is installed in place of the rotary-type reaper a, the same effect as described above will occur.

In the present invention, since the steering device in the self-propelled tea picking machine is configured as described above, if the operator moves to the side appropriately according to the curve of the tea ridges during work, the steering device automatically moves accordingly. The front wheels are turned integrally with the steering handle from the worker's body through the steering handle, changing the direction of movement of the machine, and the machine runs smoothly and precisely along the tea ridge.

Therefore, the operator does not have to use his hands at all to change the direction of movement of the machine. on the other hand,
Therefore, the operator's hands can be used only to adjust the reaping machine up and down relative to the tea plants, which not only simplifies the operator's manual operation but also improves operability. As the process progresses, fresh leaves can be picked accurately, improving work efficiency.

Furthermore, the machine can be easily operated by a single worker, saves manpower and is convenient for work, is simple in structure, can be manufactured easily and inexpensively, and has light and smooth operation. effective.

[Brief explanation of drawings]

FIG. 1 is a side view of a self-propelled tea picker showing one embodiment of the present invention, with one part cut away. Fig. 2 is a front view of the same as above, Fig. 3 is an enlarged side sectional view of the main steering part, Fig. 4 is a plan view of the same as above, Figs. 5 to 8 are plan views explaining the steering of the machine, and Fig. 5 is a The state when it is free, Figure 6 is the state when the machine moves straight,
FIG. 7 shows a state when the direction of movement of the machine is changed to the other side, and FIG. 8 shows a state when the direction of movement of the machine is changed to one side. DESCRIPTION OF SYMBOLS 1... Gate type vehicle body, 2... Bearing, 4... Drive wheel, 5... Side wheel, 6... Front wheel, 8... Frame, 9... Vertical shaft, 10... Spring, 11...
Steering handle, 12...guard piece, a...reaper, 28, 29...operation handle, 36...operator.

Claims (1)

[Claims] 1 On one side of a gate-shaped vehicle body, a drive wheel is pivoted at the rear, a front wheel is pivotably supported at the front part, and a side wheel is pivotably supported at the other side, and the inside of the vehicle body is pivoted. In a self-propelled tea picker that supports a reaper with an operating handle on one side so that its tilt angle can be adjusted vertically and sideways, the vertical axis on the frame of the front wheel is connected to the lower front part of one side of the vehicle body. The steering handle is rotatably attached to a bearing, the lower end of the steering handle is fixed to the frame, and the upper part of the steering handle is formed with a piece that touches the waist area of the worker's body, and the vertical shaft with the steering handle is fixed to the frame. A steering device characterized in that a spring presses a front wheel in a direction of inclination with respect to a driving wheel.