JPH033143Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention mainly relates to a tea tree trimming and leveling machine that shapes the upper surface of tea tree furrows into a predetermined shape. The present invention relates to a tea tree trimming machine configured as follows.

[Conventional technology]

The tea tree ridges are formed roughly in the shape of an arc in the width direction.
The cutting work has been carried out several times. The machine that performs this work includes a frame that extends along the arc of the upper surface of the tea tree ridge, a clipper-type cutting blade that is installed on the front edge of this frame and reciprocates in the length direction of the frame, and one side of the frame. established in
A two-person machine equipped with a transmission mechanism and a prime mover for driving the cutting blade body, a tea leaf guide plate provided on the rear edge side of the frame, and handles provided on both sides of a frame support rod that supports the frame. Tea plant trimmers are known. When using this leveling machine to perform the work shown in Figure 3, the center of the tea plant, that is, near the prime mover, is almost horizontal, so it is cut by the cutting blade and placed on the tea leaf guide plate. Ivy branches and leaves tend to accumulate instead of falling on the furrow side,
In order to dispose of these branches and leaves, one worker scrapes them off with a stick, etc., or each time there is a buildup, the machine is lifted upwards and tilted toward the furrow to allow the branches and leaves to slide down along the tea leaf guide plate. operating. This made the work unstable, creating unevenness and steps on the top surface of the tea tree ridges, and requiring skill to mow in an orderly manner. In order to solve this problem, a blower is installed on one side of the frame and the tea leaf guide plate, and the branches and leaves placed on the tea leaf guide plate are blown off by pressure air. It is disclosed in Publication No. 114121.

[Problem that the invention attempts to solve]

The above-mentioned prior art has a configuration in which a blower is installed near the prime mover, and power is transmitted from the prime mover to the blower via a transmission mechanism. Therefore, in addition to the prime mover, installation space is required for the blower itself.
In addition, there were other problems, such as the need to separately install a transmission mechanism from the prime mover to the blower, which not only increased the size and weight of the machine, but also increased the number of parts and increased cost.

[Means to solve the problem]

In view of the above circumstances, the present invention has been developed by superimposing the prime mover, the blower, and the transmission case for transmitting power to the cutting blade body above and below, so that the power is coaxially transmitted from the prime mover to the blower and the transmission case. In addition, a centrifugal clutch attached to the output shaft of the prime mover is fitted into a clutch drum formed on the impeller of the blower, thereby integrating the transmission mechanism from the prime mover to the cutting blade and the blower. The aim is to provide a cutting machine.

[Effect]

With this configuration, the tea tree trimming machine of the present invention can
It is lightweight and easy to operate, and allows for orderly and efficient mowing work without creating unevenness or steps in the tea tree ridges.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, numeral 6 indicates the third
It extends along an arc in the width direction of the tea tree ridge T as shown in the figure, has a predetermined width, and has a frame support rod 6.
A clipper-type cutting blade body consisting of an upper blade 4 and a lower blade 5 is disposed on the front edge side of the frame 6. The upper blade 4 and the lower blade 5 receive power from a transmission case 3 fixed to one side of the frame 6, and reciprocate in the length direction of the frame 6. A reduction gear, crank, rod, etc. are installed inside to drive the cutting blade back and forth. Further, a tea leaf guide plate 7 is provided on the rear edge side of the frame 6, and a handle 8 and a handle 9 are attached to the frame support rod 61 via fasteners 10 on both left and right sides thereof. A blower casing 2 is fixed on the transmission case 3 with its air outlet 21 facing the tea leaf guide plate 7, and an impeller 24 is fixed to an input shaft 31 protruding from the transmission case 3 within the casing 2. is provided. A clutch drum 23 is formed on the impeller 24, and a centrifugal clutch 22 attached to the output shaft 11 of the prime mover 1 is coaxially fitted into the clutch drum 23. Therefore, the prime mover 1 and the blower (casing) 2
The transmission case 3 for driving the cutting blade body is installed vertically, and the output shaft 11 of the prime mover 1
and the input shaft 31 of the transmission case 3 are coaxially connected via the centrifugal clutch 22 and the clutch drum 23, and furthermore, the centrifugal clutch 22 and the impeller 23 are connected within the casing 2 of the blower. Since the clutch drum 23 which also serves as the engine is connected to the clutch drum 23, the transmission mechanism that transmits power from the prime mover 1 to the transmission case 3 and the blower are integrally constructed. In the tea tree trimming machine configured as described above, the centrifugal clutch 22 and the clutch drum 23 do not engage when the motor 1 is started and rotates at low speed (idling), so the impeller 24 and the input shaft 3 are not engaged.
1 does not rotate, but when the rotation of the prime mover 1 is increased, the centrifugal clutch 22 frictionally engages with the clutch drum 23 and rotates the impeller 24 and the input side 31, and the pressure air generated by the impeller 24 is , air outlet 2
1 onto the tea leaf guide plate 7, and the upper blade 4 and lower blade 5 of the cutting blade body reciprocate with each other. In this state, two workers hold the handles 8 and 9 from both sides and move the cutting blade forward along the arc of the upper surface of the tea plant, with the tea plant ridges T facing each other, as shown in Figure 3. For example, branches and leaves on the upper surface of the tea tree ridge T are cut off by the cutting blade body. The cut branches and leaves are on the tea leaf guide plate 7
However, since the pressure air from the blower is blown here, the branches and leaves are blown down in the length direction of the tea leaf guide plate 7 and fall into the furrows, making it possible to continue the mowing work. Therefore, the work can be carried out in an orderly manner without creating unevenness or steps on the upper surface of the tea tree ridge T. In addition, in the above embodiment, the frame 6, cutting blade body, tea leaf guide plate 7, etc. were formed in an arc shape along the width direction of the tea tree ridge, but it is also possible to form them directly into an arc shape. The present invention can also be similarly applied to a pruning machine used for trimming, pruning, etc. of tea plants.

[Effect of the idea]

As explained above, according to the tea tree trimming machine of the present invention, the prime mover 1 and the blower (casing)
2 and a transmission case 3 for transmitting power to the cutting blade body are installed above and below to transmit power coaxially, so the installation space for these can be minimized.
It can be made smaller and lighter. Moreover, since the centrifugal clutch 22 attached to the output shaft 11 of the prime mover 1 is fitted into the clutch drum 23 formed on the impeller 24 of the blower, the power from the prime mover can be transmitted to the blower and the cutting blade at the same time. It can be driven, eliminates the need for a transmission mechanism, and is lightweight and inexpensive to manufacture.
In addition, because of its light weight, the machine has good operability and can perform work efficiently and with high precision. Furthermore, in conventional models, the parts that transmit power from the prime mover to the centrifugal clutch and clutch drum are housed in a sealed case, so the heat generated from the prime mover is transferred through the centrifugal clutch and clutch drum. Melts the grease that is transmitted to the side transmission case and is supplied to the bearings, reduction gears, cranks, rods, etc. inside the transmission case.
However, in the present invention, since the clutch drum 23 is formed on the impeller 24, the heat transmitted from the prime mover 1 is forced by the wind generated by the impeller 24. This has the effect of cooling the transmission case 3, almost eliminating heat transfer to the transmission case 3, and having a favorable effect on the transmission case.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the entire trimming machine showing one embodiment of the present invention, Fig. 2 is an exploded perspective view of the main parts, and Fig. 3 is an exploded perspective view of the main parts.
The figure is an explanatory diagram of the work. DESCRIPTION OF SYMBOLS 1... Prime mover, 11... Output shaft, 2... Blower casing, 21... Ventilation port, 22... Centrifugal clutch, 23... Clutch drum, 24... Impeller, 3... Transmission of cutting blade body Case, 31...Input shaft, 4...Upper blade, 5...Lower blade, 6...Frame,
61...Frame support rod, 7...Tea leaf guide plate,
8, 9...handle, 10...fastener, T...tea tree ridge.

Claims (1)

[Claims for Utility Model Registration] A frame extending along the width direction of the tea tree ridge, a clipper-type cutting blade body provided on the front edge side of the frame and reciprocating in the length direction of the frame, and one side of the frame. A transmission mechanism and a prime mover are provided at the rear edge of the frame to drive the cutting blade body, and a blower is provided at the trailing edge of the frame to send pressurized air to a tea leaf guide plate and blow off branches and leaves on the tea leaf guide plate. In a tea tree trimmer equipped with: a prime mover, a blower, and a transmission case that transmits power to the cutting blade body, the prime mover, a blower, and a transmission case that transmits power to the cutting blade body are stacked one above the other so that power is coaxially transmitted from the prime mover to the blower and the transmission case. Also, a tea tree trimming and leveling machine characterized in that a centrifugal clutch attached to the output shaft of the prime mover is fitted into a clutch drum formed on the impeller of the blower, so that the transmission mechanism and the blower are integrally configured. .