JPS6033792Y2 - semi-self-propelled tea mower - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a semi-self-propelled tea leaf harvester used by tea farmers to collect tea sweets.

Conventionally, a blade frame with a bottom that blends in with the tea plant is suspended from the lower side of the beam of a machine frame formed in a gate shape that straddles the tea ridges, a fixed blade is attached to the front edge of the bottom, and a drive is mounted on the fixed blade. A semi-self-propelled tea mower with a movable blade driven by a mechanism, a diversion wheel on one of the two legs of the machine frame, and wheels for propulsion and stability on the other was developed in 1973. This tea cutting machine is known from Japanese Patent No. 150756, and has a gate-shaped machine frame fixed to the side of legs equipped with wheels for propulsion and stability, so the turning radius when changing the direction of the machine is large. There was a problem in that it was impossible to change directions in narrow passageways or in corner spaces due to the obstruction of tea plants.

The present invention was made to solve the above-mentioned conventional problems.The portal machine frame is rotatably attached to the supporting legs, and when harvesting tea, it is positioned on the side of the supporting legs, so that the inside of the machine can be sufficiently spaced. It is a semi-self-propelled tea harvester that is spread out for stability, but when changing direction, it is positioned behind the supporting legs to narrow the inside of the machine, allowing it to change direction freely without being obstructed by tea plants, even in narrow aisles or in the corners of fields. The purpose is to provide an opportunity.

Next, an example of implementation of a semi-self-propelled tea cutter according to the present invention will be explained based on the drawings.

In the figure, numeral 1 is a knife frame whose base a is curved to match the shape of a little more than half of the cutting surface of a tea tree.

Reference numeral 2 denotes a reaping body provided at the front of the cutter frame 1, which is composed of a receiving blade attached to the front edge of the base a and a rotating twisting blade pivotally supported above the receiving blade.

Reference numeral 3 denotes a storage bag for harvested tea leaves attached to the rear end of the cutter frame 1, into which the tea confectionery harvested by the reaping body 2 is fed by a feeding member 4, such as a wind type, provided in front of the bag.

In addition, the cutting body installed in the cutter frame 1 can also be a clipper type, and in this case, the wind-type feeding member is attached to the cutter frame 1.
Provided above the opening.

Reference numeral 5 denotes two rod-shaped supporting legs that support one end of the knife frame 1, and the circumferential surface thereof serves as a vertical guide b on which a lifting piece (to be described later) slides;
A lifting piece 8 with a set screw 7 attached to a bundle 6 is fitted onto this vertical guide b, an elbow rod 9 is extended behind it, and a vertical bearing 10 is attached to the tip of the elbow rod 9. The vertical shaft 12 of the mounting piece 1 provided at one end of the cutter frame 1 is removably fitted into this vertical bearing 10, so that one end of the cutter frame 1 is supported by the supporting leg 5, and the vertical shaft 12 of the mounting piece 1 provided at one end of the cutter frame 1 is supported by the supporting leg 5. A book slant pipe 13 is attached,
The handle rod 15 of the steering bundle 14 is detachably attached to this oblique pipe 13.
are fitted and fixed with the screw 17 attached to the bundle 16, and two left and right wheels 18, 18 are attached to the lower end of the support leg 5 at the rear in the direction of movement, and are rotatable to the support leg 5 by means of a support shaft 19. It is supported by a swing bearing 21 which is mounted and engaged with a balance spring 20, and one free wheel 22 is provided in front in the direction of travel.
is supported by a swing arm 24 to which a balance spring 23 is engaged.

25 is a balance spring linked to the lifting piece 8, one end of which is tied to the lifting piece 8, and the other end of which is a groove wheel 26 provided on the upper part of the support leg 5.
is bypassed, guided to the lower part of the support leg 5 and fixed to the protrusion 27,
By balancing the elasticity with a part of the weight of the cutter frame 1, the cutter frame 1 can be easily adjusted up and down.

Reference numeral 28 denotes a prime mover mounted on the cutter frame 1 on the supporting leg 5 side, which directly drives the blower 29 that blows air to the wind-type feeding member 44, and also connects a belt 31 from the shaft 30 of the blower 29 to the driving wheel 18. The rotation transmitted to the intermediate shaft 32 via the gear is reduced by a reduction gear 33, and then transmitted to the reduction gear 33 by a detachable flexible shaft 34 for reaping.

The rotation transmitted from the intermediate shaft 32 to the flexible shaft 35 is transmitted to the body 2 by a belt 36.

Reference numeral 37 indicates an adjustment fitting 3 at the end of the blade frame 1 opposite to the support leg 5.
The operator guides one end of the cutter frame 1 by holding the operating bundle with 8 so that the mounting angle can be freely adjusted.

Reference numeral 39 is a gate-shaped frame that straddles the tea tree, and a vertical piece 40 at one end is rotatably fitted to the upper end of an upright rod 41 attached to the supporting leg 5, and a flexible wheel 43 is attached to the lower end of the vertical piece 42 at the other end. At the same time, a spring 45 that balances the weight with a part of the cutter frame 1 is suspended using a height-adjustable hanging tool 44 in the middle, and the other end of the cutter frame 1 is connected to this spring 45. It is.

Reference numeral 46 designates a stopper for the portal frame 39, which is attached to a shaft 48 on an arm 47 extending forward from an upright rod 41, and is normally drawn between clamps 50 attached to a vertical piece 40 by the force of a spring 49. The portal frame 39 is prevented from rotating, and when the portal frame 39 is to be rotated, it is removed from the clamp 50 by a lever 51 against the force of the spring 49, thereby allowing the portal frame 39 to rotate freely. .

Since one embodiment of the semi-self-propelled tea cutter according to the present invention is constructed as described above, when moving or changing the direction of the machine, the stopper 46 must be held against the force of the spring 49. When removed from the metal plate 50, the portal frame 39 becomes freely rotatable and turns to the rear of the support leg 5 together with the cutter frame 1, and its vertical piece 42 is positioned behind the support leg 5 to support the cutter frame 1 in the front and back. Because of its long and slender shape, it can be easily moved through narrow passages and corner spaces without damaging the tea plants, and it can also be turned around easily in a small space without damaging the tea plants. be.

Furthermore, when reaping tea cakes after moving or changing the direction of the machine, if the portal frame 39 is turned from the rear of the supporting leg 5 to the side, the knife frame 1 is also turned to the side of the supporting leg 5. , the cutting state corresponds to the cutting surface of the tea plant. At this time, if the stopper 46 is hooked to the clamp 50 and the gate frame 39 is fixed, the machine can cut the length of the gate frame 39 that straddles the tea plant. Piece 42
The blade frame 1 is stable because the left and right ends are supported by the support legs 5 and 5, and the blade frame 1 maintains its position in relation to the cutting surface of the tea plant almost uniformly without any sideways movement even if the ground in the tea garden is uneven. The operator does not have to move the control bundle 14 with the control bundle 37 because the mowing depth does not become deep due to lateral vibration and the right leaves and twigs are cut, or the mowing depth becomes shallow and only the tips of the buds are cut. If you hold the machine and guide it without having to bear the weight of the machine, and simply correct this movement only when the knife frame 1 moves up and down due to uneven ground, you can easily cut tea with good quality and a good finish. be.

In the semi-self-propelled tea cutting machine according to the above purlin design, one end of the vertical piece of the portal frame that straddles the tea tree is rotatably supported on the upper part of the support leg that supports one end of the blade frame, and the other vertical piece is rotatably supported. Since the wheels are attached to the lower end, when harvesting tea, the portal frame can be rotated to the side of the support leg, and the blade frame can be moved at both left and right ends by the vertical piece of the portal frame that straddles the tea plant and the support leg. Even if the ground in the tea garden is uneven, the blade frame will not oscillate sideways, so the blade frame will maintain its position in relation to the cutting surface of the tea plant almost uniformly, allowing it to be cut at a depth. There is no mowing or shallow cutting, and therefore, the harvested tea leaves are of good quality, with no right leaves or twigs being pruned, or only the tips of the buds being harvested, and the yield is high.

In addition, when moving or changing the direction of the machine, this tea cutter rotates the portal frame to the rear of the support legs, and the blade frame moves to the rear of the support legs, supporting the front and rear of the blade frame and creating a narrow space. The machine is stable, can be easily moved through narrow passages and corner spaces in tea gardens without being obstructed by tea plants, and can freely change direction in such places, which greatly improves the machine's maneuverability and operability. This makes tea harvesting work easier and more efficient.

In particular, this tea cutting machine has a portal frame that straddles the tea plant attached to a support leg that supports one end of the blade frame, and the portal frame and the support legs support the blade frame at both ends on the left and right sides, thereby stabilizing the machine. By using springs to suspend the knife frame from the portal frame, the worker is not burdened with the weight of the knife frame, so the worker can maintain a stable position in relation to the cutting surface of the tea plant, regardless of the unevenness of the tea garden. Since it is sufficient to simply guide the cutter frame holding the bundle by holding the bundle and modifying the cutting depth, it is extremely easy to perform cutting under optimum conditions, and the operator is characterized by less fatigue.

[Brief explanation of the drawing]

The drawings show an embodiment of the semi-self-propelled tea cutter according to the present invention, and FIG. 1 is a front view. Figure 2 is a side view. FIG. 3 is a plan view showing the state of use. In the figure, 1 is the knife frame, a is the bottom, 2 is the cutting body, 3 is the storage bag, 5 is the support leg, 1
8. 20 is the wheel, 14 is the steering bundle, 28 is the prime mover,
37 is an operating bundle, 39 is a portal frame, 40.42 is a vertical piece, 43 is a wheel, and 45 is a spring.

Claims (1)

[Scope of utility model registration request] A cutter frame is formed so that its bottom piece matches the shape of the cutting surface of the tea plant, a tea confectionery cutting body is provided on the front side of the cutter frame, a storage bag for the harvested tea leaves is attached to the rear part, and one side of the cutter frame runs at the bottom. The machine is equipped with wheels for use in cutting tools, and is supported by a support leg with a control bundle in the front.A prime mover for driving the reaping body and wheels is mounted on the upper part of this support leg side, and the mounting angle can be varied on the other side of the cutter frame. In a semi-self-propelled tea cutter equipped with an operation bundle, the blade frame is formed in a gate shape that straddles the tea ridge, and the lower end of one vertical piece is rotatably attached to the upper part of the support leg, and the other A portal frame with wheels attached to the lower end of the vertical piece is arranged.The other end of the knife frame is suspended from this portal frame using a spring that balances the weight of the knife frame, and the portal frame is attached to the knife frame. A semi-self-propelled tea cutter characterized by the support legs being able to turn from the side to the rear.