JPH0526444B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a cutting blade attachment mechanism in a clipper-type tea plucking machine for two-person operation.

[Conventional technology]

The conventional cutting blade attachment mechanism as described above will be explained with reference to FIGS. 3 to 5 together with a hair clipper-type tea picker.

As shown in Fig. 3, the conventional clipper-type tea plucking machine has an arc-shaped machine housing 1, side plates 1a, 1b, and a bottom plate 1c.
and an upper frame 1d, openings are provided at the front and rear, and a prime mover 2 and a blower 3 driven by the prime mover 2 are integrally mounted on one side upper part of the machine casing 1. As shown in FIG. 4, along the front edge of the bottom plate 1c below the blower 3, an arc-shaped cutting blade mounting plate 4 made of a cut and ground steel plate is removably fixed. Arc-shaped top, in front of
Lower clipper-type cutting blades 5 and 6 are held by set screws 7, round nuts 8, etc. so as to be able to reciprocate with a predetermined stroke. Although the cutting blades 5 and 6 are not shown,
Through a transmission pulley fixed to the main shaft of the prime mover 2, a speed reducer, and a crankshaft, it is configured to be reciprocated along the cutting blade mounting plate 4 by the rotation of the main shaft, and the rotary blades of the blower 3 are attached to the main shaft. (not shown) are also fitted and fixed. A blower pipe 9 communicating with the blower outlet of the blower 3 is disposed diagonally above and in front of the cutting blades 5 and 6, and the blower pipe 9 requires a plurality of air exhaust ports 10 facing toward the cutting blades 5 and 6. arranged in parallel at intervals,
The end of the blower pipe 9 is closed by a side plate 1b on the other side of the machine casing 1. A tea leaf storage bag 11 is removably attached to the periphery of the rear opening of the machine case 1, and handles 12 are attached to both sides of the machine case 1, respectively.

In the conventional hair clipper-type tea plucking machine constructed as described above, as shown in FIG. As a result, the blower 3 and the cutting blades 5 and 6 are operated, and in this state, the cutting blades are advanced over the brown furrow 18 in its longitudinal direction. By doing this, the tea leaves are cut by the cutting blades 5 and 6 that reciprocate. The cut tea leaves are stored in a tea leaf storage bag 11 at the rear by blowing out pressurized air from the blower 3 through the air pipe 9 and from the air outlet 10.

[Problem to be solved by the invention]

The clipper-type tea plucking machine for two-person work, as mentioned above, was created in the 1970s and 1970s, when this type of tea plucking machine was first developed.
Around 1999, the machine used to be heavy, weighing around 20kg, but today it is lighter, weighing around 13kg, but it still makes it easier for workers to hold it in their hands and harvest tea leaves for 6 to 8 hours a day. It is hard work, and as tea industry workers are getting older, it is hoped that the work will be made lighter and heavier.

In addition, in the conventional hair clipper-type tea picker as mentioned above, the cutting blade mounting plate is a processed product made by cutting and grinding steel plates, so it is expensive, and due to wear of the sliding surface etc. The blade mounting plate also had to be removed from the bottom plate of the machine casing and replaced, leading to the problem of increased maintenance costs.

In response to the above-mentioned demands, the present invention makes the tea picker lighter and cheaper as a whole by reducing the weight and cost of the cutting blade attachment part, and also by eliminating the need to replace the cutting blade attachment plate. It is an object of the present invention to provide a cutting blade attachment mechanism for a clipper-type tea picker that can also reduce maintenance costs.

[Means to solve the problem]

To achieve this purpose, the present invention has an arc-shaped clipper-type cutting blade along the front edge of the bottom plate of an arc-shaped machine housing with openings at the front and rear, and a prime mover and a blower installed at the top of one side of the machine housing. A blower pipe that communicates with the blower outlet of the blower is arranged diagonally above the front of the cutting blade, and a plurality of air outlet openings facing the cutting blade are arranged in parallel on the blower pipe. A clipper-type tea plucking machine for two-person operation, in which a tea leaf storage bag is removably attached to the periphery of the rear opening of the machine, and handles are attached to both sides of the machine case. A cutting blade mounting plate is fixed over almost the entire length of the cutting blade, the cutting blade is held on the mounting plate in a reciprocating manner, and a thickness of The present invention is characterized in that an arc-shaped cutting blade sliding contact plate made of a very thin steel plate is slidably attached to the cutting blade and removably fixed to the cutting blade mounting plate over almost the entire length of the cutting blade.

[Effect]

The mower blade mounting mechanism according to the present invention reduces the weight of the mounting plate by constructing the mower blade mounting plate, which was conventionally made of steel, from a light metal such as aluminum or aluminum alloy. One by one cutting, flat processing and angle processing of steel plates, etc.
Instead of grinding, which requires a lot of man-hours, by making light metal, for example, extrusion molded products, it becomes possible to make products uniform and mass-produce them at low cost.

In addition, if the cutting blade and the light metal mounting plate come into direct contact, the mounting plate will be worn out due to sliding on the cutting blade and become unusable in a short period of time. By removably fixing the cutting blade sliding contact plate made of a thin steel plate to the mounting plate, wear of the mounting plate can be prevented. Since the plate and cutting blade will wear out due to sliding, it is only necessary to replace them when they wear out.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 and 2.

The cutting blade attachment mechanism of the clipper-type tea picker according to this embodiment is made of an extruded or machined product of light metal such as aluminum or aluminum alloy along the front edge of the bottom plate 1c of the arcuate machine housing 1. An arc-shaped cutting blade mounting plate 13 is fixed with screws, and an arc-shaped cutting blade sliding plate 14 made of a very thin steel plate is attached to the front part of the mounting plate 13 protruding from the bottom plate 1c.
is removably fixed, and the sliding contact portion of the cutting blade 5 is held so as to be reciprocally movable.

That is, from the outside up, the long holes 5 of the lower cutting blades 5, 6
The set screw 7 is inserted through the sliding piece 15 through the sliding piece 15, and the part of the set screw 7 that protrudes above the upper cutting blade 5 is inserted into the round hole 14a of the cutting blade sliding contact plate 14. 13 and protrudes onto the mounting plate 13, and a nut such as a round nut 8 is tightened to this protrusion.

In FIG. 2, reference numeral 16 is a sliding round washer inserted between the head of the set screw 7 and the lower cutting blade 6, and 17 is a crank for transmitting driving force from the prime mover side to the cutting blades 5 and 6. It is the axis. The construction, basic operation, and use of this embodiment other than those described above are the same as those of the conventional system shown in FIGS. 3 to 5.

In the mower blade mounting mechanism of this practical example configured as described above, when the mower blades 5 and 6 are reciprocated by the prime mover of the clipper-type tea picker during use, the mower blade sliding plate 14 is moved from the mounting plate. Therefore, the mounting plate 3 does not wear out even if it is made of light metal. Moreover, when the cutting blade sliding plate 14 becomes worn, it can be replaced by just replacing it, improving the durability of the entire machine body.

〔Effect of the invention〕

As explained above, according to the present invention, in a clipper-type tea pruning machine for two-person operation, the sliding contact portion between the arc-shaped cutting blade mounting plate made of a light metal that spans almost the entire length of the cutting blade and the clipper-type cutting blade. An arc-shaped cutting blade sliding contact plate made of a very thin steel plate is removably fixed to the mounting plate so that it can slide freely on the cutting blade, making the entire tea picker lighter and cheaper. It is easy to manufacture and maintain.

In addition, the overall weight and cost of the tea plucking machine is reduced, while its durability is improved and it is economical.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view showing a cutting blade attachment mechanism in a clipper-type tea picker according to an embodiment of the present invention, and FIG.
The figure is an exploded perspective view of the same side, Figure 3 is a perspective view showing the entire conventional hair clipper-type tea plucking machine, and Figure 4 is an exploded perspective view of the same side.
A partial vertical sectional view of the cutting blade attachment mechanism of the tea picker shown in the figure.
FIG. 5 is a schematic side view of the tea plucking machine shown in FIG. 3 in use. 1...Machine housing, 1a, 1b...Side plate, 1c...Bottom plate, 1d...Upper frame, 2...Motor, 3...
Blower, 4...Mowing blade mounting plate, 5, 6... Clipper type cutting blade, 5a, 6a... Long hole, 7... Set screw,
8...Round nut, 9...Air pipe, 10...Exhaust port, 11...Tea leaf storage bag, 12...Handle, 13...
...Mower blade mounting plate, 13a...Screw hole, 14...Mower blade sliding contact plate made of steel plate, 14a...Round hole, 15...
Sliding piece, 16... Sliding round washer, 17... Crankshaft, 18... Brown ridge.

Claims (1)

[Scope of Claims] 1. An arc-shaped clipper-type cutting blade is installed along the front edge of the bottom plate of an arc-shaped machine casing with openings at the front and rear, and a prime mover and a blower are mounted on the upper side of the machine casing, A blower pipe that communicates with the blower outlet of the blower is arranged diagonally above the front of the cutting blade, and a plurality of air exhaust ports facing the cutting blade are arranged in parallel on the blower pipe, and the rear opening of the machine housing is A clipper-type tea plucking machine for two-person operation, with a tea leaf storage bag removably attached to the periphery and handles attached to both sides of the machine case, in which an arc-shaped cutting blade made of light metal is mounted on the arc-shaped bottom plate. A mounting plate is fixed over almost the entire length of the cutting blade, the cutting blade is held on the mounting plate in a reciprocating manner, and the thickness is very thin between the mounting plate and the sliding contact portion of the cutting blade. A clipper-type tea picker characterized in that an arc-shaped cutting blade sliding contact plate made of a steel plate is slidably attached to the cutting blade and removably fixed to the cutting blade mounting plate over almost the entire length of the cutting blade. mower blade attachment mechanism.