JPH022206Y2 - - Google Patents

Description

[Detailed description of the invention] <Purpose of the invention><Field of industrial application> The present invention relates to a tea leaf pruning machine used for managing tea ridges.

<Background of the invention> Tea plants are harvested in each tea season, such as the first or second tea, in order to encourage the next growth several days later, and also to ensure that the plants grow evenly in clusters so that the picking process can be done more efficiently. In addition, it requires so-called trimming work to prepare the tree surface, and furthermore, pruning work to uniformly cut all the areas where tea leaves grow in order to restore the tree's vigor every few years.

Many of the tea leaf pruning machines used for this kind of work are equipped with clipper-style blades, so it is important not to create excessive friction between the pair of upper and lower cutting blades and disturb the smooth cutting process. A structure that can withstand this is required. Of course, in order to meet this demand, it would be possible to increase the thickness and rigidity of the substrate that supports the cutting blades, but such measures would increase the overall weight of the tea leaf pruning machine, which would impair its workability and usability. The problem is that it has gotten significantly worse. Incidentally, in the past, this type of tea leaf pruning machine was designed without a frame attached to it other than the board in order to make it easier to see the tea stem cutting process, but this resulted in other inconveniences as mentioned above. I was getting used to it.

<Technical matters for which the development was attempted> The present invention was developed in view of this background, and is an attempt to comprehensively solve the problems with this type of tea leaf pruning machine. ,
This was an attempt at comprehensive improvements such as increased rigidity and smoother operation.

《Structure of the invention》 〈Means for achieving the purpose〉 That is, the tea leaf pruning machine according to the present invention has a pair of upper and lower clipper-type cutting blades slidably supported on a substrate whose center is curved upward, and one of them In a pruning machine with an engine attached to the side for driving the cutting blade, above the board there is a blade that extends rearwardly from the cutting blade in a planar projection position, runs almost along the board, and is connected to the board at an end. In addition to disposing a continuous support rod over almost the entire width of the branch, this support rod has a handle that protrudes from the engine side of the pruner and the opposite side, the hem side, so that the mounting angle can be adjusted freely. The handle provided at least on the engine side is characterized by being formed of a single pipe at the connection part with the support rod, and is intended to achieve the above object. be.

<Example> The present invention will be specifically described below based on the illustrated example. Reference numeral 1 is the tea leaf pruning machine of the present invention, which is a so-called clipper type machine for two people.
The base plate 2 in this tea leaf pruning machine 1 has a shape whose center is curved upward because the upper surface of the tea ridge A is trimmed on a curved surface, and is made of a strip-shaped steel plate or the like. be done. A pair of upper and lower cutting blades 3 and 4 are slidably attached to the lower part of the base plate 2. Specifically, the blades are connected to each other by pins 5 implanted in the base plate 2. 3 and 4 are pivoted. An engine E is installed on one side of the tea leaf pruning machine 1, and the rotation of the engine E is transmitted to the cutting blades 3 and 4 via a drive unit 6 mainly consisting of a speed reducer and an eccentric shaft. It acts to cause at least one or both of these to reciprocate. Furthermore, a support rod 7 is provided above the substrate 2 so as to run substantially parallel thereto. The support rod 7 is made of, for example, a light alloy pipe such as an aluminum alloy, and has a continuous shape over almost the entire width, and is connected to the substrate 2 through a bracket 8 at both ends, for example. Connected. The connection structure between the bracket 8 and the support rod 7 is such that a fitting portion 8A of the annular support rod 7 is formed at the upper end of the bracket 8, and the support rod 7 is internally fitted therein, and a fixing rod passing through these is formed. Bolt 8B
It is fixed by In this embodiment, the receiving hole 8C for the fixing bolt 8B in the fitting part 8A of the bracket 8 is formed into an elongated hole along the longitudinal direction of the support rod 7, so that the tightening position of the fixing bolt 8B can be freely selected. This makes it possible to substantially change the fixing position between the support rod 7 and the substrate 2, and to set the curvature of the substrate 2 to match the shape of the brown ridge. Furthermore, in this embodiment, the bracket 8 is tilted slightly backward as shown in FIG. As defined as the requirement, a constant dimension d at the plane projection position from the cutting blades 3 and 4.
It is set so that it is shifted backward by a certain amount. Furthermore, support rod 7
The handles 9 and 10 are provided so as to protrude oppositely from both sides of the support rod 7, that is, the engine E side and the other end, which is the hem side.
In order to be able to freely adjust the setting angle, tightening tools 9A, 1 are used.
Fixed via 0A. And this handle 9, 10
Among them, at least the handle 9 side provided on the engine E side is required to be formed of a single pipe at the connection part with the support rod 7. On the other hand, a guide plate 11 and a stabilizing plate 12 are provided in two layers on the rear side of the base plate 2, that is, on the side opposite to the side where the cutting blades 3 and 4 are provided. The guide plate 11 is formed of a metal plate such as an aluminum plate, and the cutting blade 3,
4 or a curved shape according to the curvature of the substrate 2 that supports it. Furthermore, the stabilizer plate 1 below it
2 has almost the same shape as the guide plate 11, with the rear part slightly projecting out.

The tea leaf pruning machine 1 of the present invention has the specific structure as described above, and operates as follows. First, in use, the curvature of the cutting blades 3 and 4 is adjusted if necessary to match the shape of the teal ridge.
As mentioned above, this is done by changing the mutual fixed position of the support rod 7 and the base plate 2, specifically, the fitting part 8A of the bracket 8 and the end of the support rod 7. This is to change the tightening position of the fixing bolt 8B. In addition, at least the set angles of the handles 9 and 10 and, if necessary, the fixed positions are adjusted so that the work can be performed optimally according to the physique of the worker, the height of the brown furrow, etc. After such preparatory work, the engine E is started and one or both of the cutting blades 3 and 4 is caused to reciprocate in accordance with the conventional method, so that the cutting blades 3 and 4 can shear the tea plant. state. After that, two workers hold the left and right handles 9 and 10 of the tea leaf pruning machine 1, and as shown in FIG. Trim the top surface of A to make it even. The tea leaves and tea stems cut in such an operation climb over the substrate 2 from above the cutting blades 3 and 4, reach the guide plate 11 or the stabilizing plate 12 behind it, and fall to the hem side along the slope. ,
It is dropped as if guided between the tea furrows A. Incidentally, in this type of tea leaf cutting and leveling work, the left and right halves of the tea ridge are trimmed evenly by reciprocating work per tea ridge, but in both cases, engine E is installed. Since the side is aligned with the center of the tea ridge, the side of the guiding plate 11 or the stabilizing plate 12 opposite to the engine E faces downward, so the cut tea leaves and tea stems slide down the upper surface and fall to the hem side. I will do it. Incidentally, during such reciprocating mowing, the handles 9 and 10 can be replaced between forward and backward mowing so that the handles 9 and 10 can be used in a state suitable for each task. Incidentally, during such operation, the engine itself generates a certain amount of vibration, and this vibration is also transmitted to the guiding plate 11 or the stabilizing plate 12, which causes minute vibrations that cause the tea stems etc. This will further promote downhill skiing.

By the way, during such work, in the case of the present invention, if the support of the tea leaf pruning machine 1 by two workers becomes unbalanced and the entire structure is twisted, the torsional stress will be Most of it is absorbed by support rod 7 and has no effect on anything else. The tea leaf pruning machine referred to in the present invention includes not only one that performs pruning work that simply trims the ridge surface, but also one that performs pruning work that further cuts off the tea stems near the root.

<<Effects of the invention>> As described above, according to the present invention, first, the substrate 2
Since one continuous support rod 7 is provided along the support rod 7, even if the board 2 is made of a thin steel plate to reduce its weight, for example, the decrease in strength can be sufficiently compensated for. , it is possible to achieve further weight reduction with no decrease in strength compared to the conventional type. Furthermore, in the present invention, this support rod 7 is the cutting blade 3,
Since the cutter blades are arranged rearward from the position 4, the operator can naturally visually check the condition of the cutter blades 3 and 4, and can accurately cut and align the tea stems.

Furthermore, in the present invention, since the handles 9 and 10 are attached to the support rod 7, the torsional stress transmitted to the handle due to changes in working posture is also transferred to the support rod 7.
Even if the rigidity of the substrate 2 and the like is weak, no adverse effect will occur.

Furthermore, in the present invention, since the angle at which the handles 9 and 10 are attached to the support rod 7 is adjustable, a more appropriate working posture can be obtained.

Furthermore, in the present invention, since the handle 9 on the side of the engine E is constituted by one pipe at least at the connection part with the support rod 7, the presence of the engine E tends to obstruct the view. Even on the stale engine side, the visual condition of the cutting blades 3 and 4 is not further deteriorated, and excellent workability is exhibited in this respect as well.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the tea leaf pruning machine of the present invention, Fig. 2 is a longitudinal cross-sectional side view of the same, Fig. 3 is a front view of the same with the insertion part as the center, and Fig. 4 is the working mode. It is a skeletal front view explaining. 1; Tea leaf pruning machine, 2; Substrate, 3, 4; Cutting blade,
6; Drive unit, 7; Support rod, 9, 10; Handle, 11;
Guide plate, 12; Stabilizer plate, A; Brown ridge, E; Engine, d; Plane projection dimension difference between support rod and cutting blade.

Claims (1)

[Scope of utility model registration request] In a pruning machine, a pair of upper and lower clipper-type cutting blades are slidably supported on a board whose center is curved upward, and an engine for driving the cutting blades is attached to one side of the pruning machine. A support rod is disposed that extends rearward from the cutting blade in a planar projection position and extends almost along the board and is connected to the board at the end. The rod is provided with handles that protrude from the engine side of the pruning machine and the hem side, which is the opposite side, so that the installation angle can be freely adjusted. A tea leaf pruning machine characterized by being formed by a single pipe.