JP2957553B1 - Hair clipper tea pruning machine - Google Patents

Abstract

A reciprocating drive mechanism does not protrude from the left and right widths of a clipper blade that is concavely curved downward, and a load is applied to the clipper blade substantially evenly, causing breakage or wear of the clipper blade. To provide a hair clipper-type tea pruning machine that does not cause harm. A reciprocating drive mechanism (8) is disposed above a longitudinal center of a clipper blade assembly (7) that is concavely curved downward. This reciprocating drive mechanism 8 is connected to the center of the clipper blade assembly 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair clipper type tea picking machine.

[0002]

2. Description of the Related Art Conventionally, a hair clipper-type tea picking machine is provided with a pair of clipper blades which are concavely curved downward on a main body frame, and a reciprocating drive mechanism is connected to the left or right end of the clipper blade. By doing so, the downwardly curved hair clipper blade is reciprocated to the left and right to pick out fresh tea leaves.

[0003]

However, in the above-mentioned conventional hair clipper-type tea picking machine, a reciprocating drive mechanism is connected to the left or right end of the clipper blade. In this case, there is a problem in that it protrudes from the body frame, protrudes left and right from the body frame to hinder the running, and damages the tea leaves.

[0004] Further, the above-mentioned conventional hair clipper-type tea plucking machine,
Since the entire clipper blade is reciprocatingly driven by the left or right end of the curved long clipper blade, the load applied to one end near the drive source of the clipper blade and the other end farthest to the drive source is reduced. There is a problem that an imbalance is caused, and in particular, an overload is applied in the vicinity of one end near the drive source, and troubles such as breakage and wear occur.

[0005] Therefore, an object of the present invention is to provide a reciprocating drive mechanism that fits within the left and right widths of the clipper blade and that erodes the main body frame or protrudes left and right from the main body frame.
An object of the present invention is to provide a hair clipper-type tea pruning machine that does not hinder running or damage fresh tea leaves.

Another object of the present invention is to provide a hair clipper-type tea picking machine in which a load is applied substantially evenly to the hair clipper blade and the hair clipper blade is not damaged or worn.

[0007]

In order to achieve the above object, a hair clipper-type tea picking machine according to the first aspect of the present invention comprises a body frame, a traveling device, and a pair of hair clippers concavely curved downward. In a hair clipper-type tea picking machine having a blade, a reciprocating drive mechanism is disposed above a central portion in the longitudinal direction of the clipper blade, and the reciprocating drive mechanism is connected to a central portion in the longitudinal direction of the clipper blade. Features.

According to the clipper-type tea picking machine of the first aspect of the present invention, since the reciprocating drive mechanism is disposed above the central portion in the longitudinal direction of the clipper blade, the reciprocating drive mechanism fits within the left and right widths of the clipper blade. Therefore, the reciprocating drive mechanism does not come into contact with the main body frame and does not protrude left and right from the main body frame, so that it does not hinder the running or damage the fresh tea leaves.

The inventor of the present invention has discovered that a portion of the end of the clipper blade that is concavely curved to the lower side near the drive source is overloaded, causing breakage and wear. And the reason is that the hair clipper blade is curved,
It is discovered that the bending moment of the tangential cutting reaction force acting on each part of the curved hair clipper blade is accumulated, and the roots of the pair of hair clipper blades (ends near the driving source) are pressed strongly against each other. did.

In the first aspect of the present invention, since the reciprocating drive mechanism is connected to the longitudinal center of the clipper blade, the reciprocating drive mechanism is connected to the longitudinal end of the clipper blade. As compared with the above, the amount of accumulation of the bending moment of the tangential cutting reaction force in each part of the curved clipper blade at the central part is small, and the central part of the clipper blade to which the reciprocating drive mechanism is connected is locally overloaded. Is not taken. Therefore, breakage and wear of the hair clipper blade are prevented.

According to the clipper-type tea picking machine of the first aspect of the present invention, the reciprocating drive mechanism drives the clipper blade by applying a force to the central portion in the longitudinal direction of the clipper blade. Therefore, the distance from the central portion to which the driving force of the clipper blade is applied to the left and right end portions is short and substantially equal, so that the clipper blade is smoothly driven in a well-balanced manner without being locally overloaded. . Therefore, breakage and wear of the hair clipper blade are prevented.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

As shown in FIG. 1, the clipper-type tea pruning machine includes a portal-shaped main body frame 1, a crawler 2 as a traveling device attached to a lower portion of the main body frame 1, and mounted on the main body frame 1. Engine 3 and an operation handle 5 are provided. A clipper blade assembly 7 which is concavely curved downward in accordance with the shape of the tea tree ridge is attached to the lower front part of the main body frame 1, and a reciprocating drive mechanism 8 is mounted on the longitudinal center of the clipper blade assembly 7. Has been arranged. Further, the clipper blade assembly 7
A reciprocating drive mechanism 8 is connected to the central portion in the longitudinal direction of. The fresh tea leaves cut with the clipper blade assembly 7 are
Suction is performed by the suction cylinders 9 and 9.

The clipper blade assembly 7 and the reciprocating drive mechanism 8 are configured as shown in FIGS. That is, the clipper blade assembly 7 includes an upper clipper blade 71 and a lower clipper blade 72 that are concavely curved downward and slide in the longitudinal direction with respect to each other. The reciprocating drive mechanism 8 includes a crankshaft 1 driven to rotate by a motor 11.
2 and connecting rods 15 and 16 whose center portions are swingably attached to a fulcrum 17. The crankshaft 12 has journals 121 and 122 concentric with the output shaft of the motor 11.
And a crank pin 12 having a phase angle of 180 degrees with each other.
3, 124 and the crank arms 125, 126, 127
Consists of The connecting rod 16 is connected to the crank pin 123.
Of the crank pin 12
4, a long hole 15a of one end of another connecting rod 15 is fitted. Further, the elongated hole 15 at the other end of the connecting rod 15
b is fitted to the pin 18 attached to the metal fitting 20 fixed to the upper clipper blade 71, and
6b is fitted to the pin 19 attached to the metal fitting 21 fixed to the lower clipper blade 72. Therefore, the motor 11
Rotates, the crankshaft 12 rotates, and the crankpins 123 and 124 having a phase angle of 180 degrees
a, 16b, the crank pins 123, 1
24 allows the connecting rods 15, 16 to swing in opposite directions about the fulcrum 17. The pins 18 and 19 which slide relatively in the long holes 15b and 16b of the other ends of the connecting rods 15 and 16 allow the upper clipper blade 7 to move.
The first and lower clipper blades 72 reciprocate in opposite directions in the longitudinal direction.

[0015] In the hair clipper-type tea picking machine of the above configuration,
When the motor 11 rotates, the above-described reciprocating drive mechanism 8 causes the upper clipper blade 71 and the lower clipper blade 72, which are concavely curved downward, to reciprocate in directions opposite to each other, thereby cutting green tea leaves and causing the suction cylinder 9 to rotate. , 9.

At this time, the connecting rod 1 of the reciprocating drive mechanism 8
2 and 3, the lower ends of the clippers 5 and 16 are provided with metal fittings 20 and 21 and pins 18 and 19 at the longitudinal center of the clipper blade assembly 7 between the upper clipper blade 71 and the lower clipper blade 72. Are connected via a point, the driving force of the upper clipper blade 71 and the lower clipper blade 72 is applied (the metal fitting 2
0 and 21) and upper and lower clippers 7
The left and right distances to the left and right ends of each of the 1,72 are short,
Further, the upper and lower clippers blades 71 and 72 are substantially equal to each other, and a compressive force and a tensile force act on each of the left and right sides of the center where the driving force is applied. Therefore, the curved upper and lower clipper blades 7
Above the bending moment of the tangential cutting reaction force acting on each part of the upper and lower clippers blades 71 and 72, the amount of accumulation at the central part is small, and the central parts of the upper and lower clipper blades 71 and 72 are pressed against each other. There is no overload locally. Therefore, breakage and wear of the upper and lower clippers blades 71 and 72 can be prevented, and the durability is improved. Further, since the upper and lower clippers blades 71 and 72 can be smoothly driven in a well-balanced manner, the efficiency is improved. Further, since the overload of the reciprocating drive mechanism 8 can be prevented, the components of the reciprocating drive mechanism 8 can be prevented from being damaged, and the components and the like can be reduced in size. The size and weight can be reduced.

Further, the clipper-type tea picking machine is shown in FIG.
As is apparent from FIG. 3, the reciprocating drive mechanism 8 is disposed above the central portion of the clipper blade assembly 7 by utilizing the space above the central portion in the longitudinal direction of the clipper blade assembly 7. It does not protrude from the left and right widths. In addition, since the reciprocating drive mechanism 8 is disposed above the central portion in the longitudinal direction of the clipper blade assembly 7, the reciprocating drive mechanism 8 does not come into contact with the main body frame 1 and can protrude left and right from the main body frame 1. Without
It does not disturb driving and does not damage fresh tea leaves.

FIG. 4 shows a reciprocating drive mechanism 35 according to another embodiment.
Is shown. The reciprocating drive mechanism 35 is concavely curved downward and is connected to the longitudinal center of the lower hair clipper blades 31 and 32. The reciprocating drive mechanism 35 includes a table 33 fixed to the center of the lower clipper blade 32 and the upper clipper blade 3
6 is provided with a rocking plate 36 fixed to the center of the wheel 6 and guided by the table 33 to rock left and right. The rocking plate 36 is provided with a rectangular cam groove 37, and the slider 3
8 is slidably provided. A circular eccentric cam 41 is rotatably fitted in a circular hole in the slider 38. The shaft 41 is fixed at a position eccentric with respect to the center of the eccentric cam 41.

In the above configuration, as shown in FIG. 4A, when the shaft 41 rotates in the direction of arrow X, the eccentric cam 41
Is rotated, the slider 38 moves along the cam groove 37, moves in the longitudinal direction of the upper and lower clippers blades 31, 32, and moves the upper clipper blade 31 rightward via the swing plate 36. Let it. And the reciprocating drive mechanism 35 is shown in FIG.
The state shown in is shown. Further, when the eccentric cam 41 rotates 90 degrees from the state shown in FIG. 4B, the reciprocating drive mechanism 35 enters the state shown in FIG. 4C. Thus, the upper clipper blade 31 makes one reciprocation by one rotation of the eccentric cam 41.

Also in this embodiment, the reciprocating drive mechanism 35 is connected to the center of the upper and lower clippers blades 31 and 32, and therefore has the same operation and effect as the previous embodiment.

In the above-described embodiment, two types of reciprocating drive mechanisms have been described. However, the structure of the reciprocal drive mechanism is not limited to the above-described example, and various structures are of course possible. In short,
Instead of the structure of the reciprocating drive mechanism itself, the reciprocating drive mechanism is disposed above a portion other than the longitudinal end of the clipper blade that is concavely curved downward, and the reciprocating drive mechanism is connected to that portion. .

[0022]

As is clear from the above, according to the clipper-type tea picking machine of the first aspect of the present invention, the reciprocating drive mechanism is disposed above the central portion in the longitudinal direction of the clipper blade.
The reciprocating drive mechanism fits within the left and right widths of the hair clipper blade, does not touch the main body frame, and does not protrude left and right from the main body frame, hinders traveling,
It does not damage the tea leaves.

According to the clipper-type tea picking machine of the first aspect of the present invention, the reciprocating drive mechanism is connected to the longitudinal center of the clipper blade that is concavely curved downward. Is connected to the longitudinal end of the clipper blade, the amount of accumulation at the longitudinal center of the clipper blade of the bending moment of the tangential cutting reaction force acting on each part of the curved clipper blade There is no overload locally at the longitudinal center of the clipper blade to which the reciprocating drive mechanism is connected, so that breakage and wear of the clipper blade can be prevented, durability can be improved, and The load on the reciprocating drive mechanism and the like can be reduced, and the reciprocating drive mechanism and the like can be reduced in size and weight.

According to the clipper-type tea picking machine of the first aspect of the present invention, since the reciprocating drive mechanism is connected to the longitudinally central portion of the clipper blade concavely curved downward, the clipper blade is driven. The distance from the central part where the force is applied to the left and right ends is short and almost equal, so that the central part in the longitudinal direction of the clipper blade is not locally overloaded,
The clipper blade can be driven smoothly and efficiently in a well-balanced manner, and the breaker blade can be prevented from being damaged or worn.

[Brief description of the drawings]

FIG. 1 is a front view of a hair clipper-type tea picking machine according to an embodiment of the present invention.

FIG. 2 is a perspective view of a reciprocating drive mechanism and a clipper blade of the embodiment.

FIG. 3 is an arrangement diagram of the reciprocating drive mechanism and the clipper blade.

FIG. 4 is an explanatory view of another example of the reciprocating drive mechanism.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main body frame 8, 35 ... Reciprocating drive mechanism 7 ... Hair clipper blade assembly 11 ... Motor 12 ... Crank shaft 31, 32, 7
1,72… Clipper blade

Claims (1)

(57) [Claims] 1. A hair clipper-type tea picking machine including a main body frame, a traveling device, and a pair of clipper blades that are concavely curved downward, wherein the clipper blade is above a central portion in the longitudinal direction of the clipper blade. A clipper-type tea picking machine, wherein a reciprocating drive mechanism is disposed, and the reciprocating drive mechanism is connected to a central portion in a longitudinal direction of the clipper blade.