JPH0748025Y2 - Self-propelled tea plant double-sided hemming machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a double-sided hemming machine for tea trees, which trims both skirts between the ridges of a tea tree in a single operation, and in particular, is improved by automatically improving the running part. The present invention relates to a self-propelled double-sided hemming machine for tea plants.

[Conventional technology]

Conventionally, a double-sided hemming machine for tea plants that simultaneously cuts both hem portions sandwiching the furrows of tea trees is disclosed in, for example, JP-A-54-160660, JP-A-55-63617, and JP-A-55-121619. Etc. In these prior arts, a handle is provided on an upper frame having a prime mover, a pair of left and right cutting blade support frames are vertically hung from the upper frame, and a reciprocating cutting blade body driven by the prime mover is provided on both the cutting blade support frames. The wheels supported by the upper frame via the wheel support frame are arranged between the lower parts of the right and left cutting blades, and the operator holds the handle while rolling one wheel. The hem of the tea plant on both sides of the furrow is trimmed.

[Problems to be solved by the device]

By the way, since the operator holds the handle and pushes the aircraft forward, or reverses the direction of the handle and wheels and grasps the handle and pulls the aircraft to run in reverse, he / she drops the tea plant. In addition, there is a problem in that the cutting ability of the tea plant becomes unstable and the desired work cannot be performed if the running performance becomes unstable.

The present invention is intended to solve the above problems.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a handle 12 on an upper frame 3 having a prime mover 1,
A pair of left and right cutting blade support frames 4 are hung vertically, and the reciprocating cutting blade bodies 5 driven by the prime mover 1 are respectively supported on the both cutting blade support frames 4 and the upper frame 3 is provided with a wheel support frame 7 therebetween. In the self-propelled double-sided hemming machine for tea trees, in which the supported wheels 11 are arranged between the lower parts of the right and left cutting blades 5, a generator 16 driven by the prime mover 1 is mounted on the upper frame 3 near the prime mover 1. On the other hand, a height adjusting rod 9 which can be fixed and released by a height adjusting screw 10 is fitted from the lower end of the wheel supporting frame 7, and the wheel 11 is axially supported on the lower end of the height adjusting rod 9. In addition, a motor 18 driven by the electric power generated by the generator 16 is installed near the wheel 11, and a deceleration tension belt transmission system 19 is provided between the wheel 11 and the motor 18 to operate the tension arm 20. Put the clutch lever 21 in the It is characterized by being provided on the dollar 12.

[Action]

With the above-mentioned configuration, the self-propelled double-sided hemming machine for tea plants has an automated traveling of the machine body, which facilitates traveling operation.
Stable trimming of tea trees can be performed.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is a prime mover, which is mounted on the rear side of a transmission case (crank case) 3 also serving as an upper frame via a clutch case 2 having a built-in centrifugal clutch mechanism and mounted on the machine body. In the transmission case 3, the speed is reduced and converted into a crank motion, and the reciprocating cutting blade 5 supported by the cutting blade supporting frame 4 reciprocates. The transmission case 3, the cutting blade support frame 4, and the cutting blade 5 are provided in a pair on the left and right, and rotational power is transmitted from the transmission case 3 to which the prime mover 1 is attached to the other transmission case 3 via a spline transmission shaft having a universal joint. It is being transmitted. The spacing between the transmission cases 3 and 3 can be adjusted by simultaneously moving the left and right transmission cases 3 and 3 by rotating a slider knob 6 provided above them.

A wheel support frame 7 having an upper end fixed to a frame between the transmission cases 3 and extending vertically downward is provided with a cutting blade opening angle adjusting plate 8 and a cutting blade opening angle adjusting screw 8a.
The opening below 5,5 is adjustable. At the lower end of the wheel support frame 7, a height adjusting rod 9 is inserted so as to be movable up and down and flipped forward and backward, and the height is adjusted by a height adjusting screw 10. One wheel 11 is pivotally supported on the lower portion of the height adjusting rod 9. The tip of the handle 12 is attached to the upper left and right sides of the transmission case 3 via fasteners 13, and the fasteners 13 are provided with fastening levers 14. By operating the fastening levers 14, the handle 12 is moved. The height can be adjusted arbitrarily, and it can be flipped almost 180 degrees.

A generator 16 is mounted on one of the transmission cases 3 via a sub transmission case 15, and is driven by the power from the prime mover 1 via a belt transmission system 17 or gears. On the other hand, on the upper side of the wheel 11, a motor 18 driven by the electric power generated by the generator 16 is provided.
Power is transmitted from 18 to the wheels 11 via a deceleration belt transmission system 19 so that the vehicle automatically travels. The deceleration belt transmission system 19 constitutes a belt tension clutch, and the tension pulley 20a of the tension arm 20 connects and disconnects the power. The tension arm 20 is provided on the handle 12. It is operated by the clutch lever 21 via the clutch wire 21a. Incidentally.
A small battery and motor that stores the electricity generated by the generator 16 and stably rotates the motor 18.
The 18 on / off switches may be provided separately.

The self-propelled double-sided hemming machine for tea trees having such a structure is used for cutting off both opposite hem portions of the tea tree rows on both sides sandwiching the ridge of the tea tree in one operation. Tea trees are plucked about 2 to 4 times a year, and during each pruning period, plant surface mowing to prevent mixing of old leaves at the time of pruning and shallow mowing to establish tree vigor are carried out. However, the annual growth of about 5 to 10 cm is observed, and the hem of the tea tree also shows a large spread, which narrows the furrows, making it inconvenient for work such as plucking tea plants, fertilizing tea plants, spraying chemicals, and deep plowing. Since it is given, both sides are trimmed.

In such double-sided hemming work of tea trees, the double-sided hemming machine of the present invention allows the operator to hold the handle 12 to position the wheels 11 in the ridges of the tea tree and operate the tension arm 20 with the clutch lever 21. Wheel by deceleration belt transmission system 19
Rotate 11 and cut the hem of the tea plant on both sides with the right and left cutting blades 5 while running the machine forward. At this time, since the prime mover 1 is mounted in the central portion of both cutting blades 5, that is, the central portion in the lateral direction of the machine body, the lateral balance of the machine body is good and the maneuverability is good. Therefore, the operator only needs to concentrate his / her attention on positioning the cutting blades 5 at the appropriate hem cutting positions of the left and right tea trees, and can perform stable tea tree hem dropping work.

Further, the spacing of the upper part of the cutting blade 5 can be freely adjusted within a predetermined range by rotating the slider knob 6, and the spacing of the lower part of the cutting blade 5 is adjusted by the cutting blade opening angle adjusting plate 8 and the cutting blade opening angle adjusting screw.
The opening is arbitrarily adjusted by 8a.

Furthermore, the height of the cutting blade 5 and the wheel 11 can be adjusted by adjusting the height adjustment screw.
The height adjusting rod 9 can be expanded and contracted by the 10 and the handle 12 can be inverted 180 degrees by the fastener 13 and the fastening lever 14 and the height adjusting screw 10 can be loosened to move the height adjusting rod 9 to the wheel. It is also possible to take out from the support frame 7 and turn the wheels 11 upside down, and an operator can carry out work by holding the handle 12 and running the machine body backward.

[Effect of device]

As described above, since the self-propelled double-sided hemming machine for tea plants of the present invention has the above-mentioned configuration, the following effects can be obtained.

． A generator 16 driven by the prime mover 1 is provided near the upper frame 3, and electric power generated by the generator 16 is used to drive the motor 18
Drive the wheels through the deceleration tension belt transmission system 19
Since it is driven by 11, the whole double-sided hemming machine for self-propelled tea trees can be constructed lightweight, forward and reverse rotation can be easily switched by forward and reverse rotation of the motor 18, and traveling is automated and the operator's Fatigue is reduced, and it is possible to carry out the work of trimming the tea plant with high accuracy.

． Further, the wheel 11 is driven by the motor 18 via the deceleration tension belt transmission system 19, and the height adjusting rod 9 supporting the wheel 11 and the motor 18 is fixed to the wheel supporting frame 7 by the height adjusting screw 10. Since the fixing can be released, the heights of the cutting blade 5 and the wheels 11 can be easily adjusted, and as compared with the case where the wheels are directly driven from the prime mover, traveling between the tea tree ridges can be performed more easily and stable hem dropping work can be performed. it can.

． Further, since the clutch lever 21 for operating the tension arm 20 of the deceleration tension belt transmission system 19 is provided on the handle 12, the operation of traveling and traveling stop can be easily performed, and the traveling forward traveling with the steering wheel at the rear, the steering wheel of the aircraft It is possible to freely select running in the forward direction and perform desired hem cutting work.

[Brief description of drawings]

Fig. 1 is a side view of the entire self-propelled double-sided hemming machine for tea plants, 2
Drawing and Drawing 3 are side views of the important section. 1 ... motor, 2 ... clutch case, 3 ... transmission case, 4
… Cutting blade support frame, 5… Cutting blade, 6… Slider knob,
7 ... Wheel support frame, 8 ... Cutting blade opening angle adjusting plate, 8a ...
Cutting blade opening angle adjusting screw, 9 ... Height adjusting rod, 10 ... Height adjusting screw, 11 ... Wheel, 12 ... Handle, 13 ... Fastener, 14 ... Fastening lever, 15 ... Sub transmission case, 16 ... Generator, 17 ... Belt transmission system, 18 ... Motor, 19 ... Belt transmission system, 20 ... Tension arm, 20a ... Tension pulley, 21 ... Clutch lever, 21a ... Clutch wire.

Claims (1)

[Scope of utility model registration request] 1. A handle (12) is provided on an upper frame (3) having a prime mover (1), and a pair of left and right cutting blade support frames (4) are vertically provided from the upper frame (3). The support frame (4) supports the reciprocating blades (5) driven by the prime mover (1), and the upper frame (3) supports the wheels (11) supported via the wheel support frame (7). A self-propelled double-sided hemming machine for tea plants arranged between the lower parts of the right and left cutting blades (5), wherein a generator driven by the prime mover (1) is mounted on an upper frame (3) near the prime mover (1). (16) is provided, on the other hand, a height adjusting rod (9) which can be fixed and released by a height adjusting screw (10) is inserted from the lower end of the wheel supporting frame (7), and this height adjusting rod ( 9) At the lower end of the wheel (1
A motor (18) that supports 1) and is driven by the electric power generated by the generator (16) is installed in the vicinity of the wheel (11) to reduce the speed between the wheel (11) and the motor (18). A double-sided hemming machine for a self-propelled tea plant, comprising a tension belt transmission system (19) and a clutch lever (21) for operating the tension arm (20) provided on the handle (12).