JPS645847B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a reaping transport section equipped with a reaping device and a reaped grain culm lateral transport device at the front of the machine, and an engine, a propulsion wheel, and a control handle at the rear of the machine. This invention relates to a walk-behind reaper configured such that a driver operates the machine from the rear and reaps planted grain culms using a reaping and transporting section at the front of the machine, transports them laterally, and discharges them to the outside of the machine.

This reaper is designed to continuously release the harvested grain culm without tying it, so there is no restriction on the amount of lateral transportation of the harvested grain culm, and after the harvested grain culm is transported horizontally, it is tied up. It has become common to have a structure that enables efficient reaping and harvesting with a wider cutting width than a reaping and binding machine (binder), which releases a binder.

However, conventional reapers of this type were constructed by attaching wide reaping conveyance sections as attachments to the front and rear of the traveling vehicle body of a walk-behind cultivator, so they were quite heavy and difficult to handle. It was hot.

In configuring a dedicated reaper for reaping in a continuous reaping/discharging mode, this invention aims to simplify the frame structure of the machine body, use common parts, and simplify the transmission structure, making it lightweight, easy to handle, and inexpensive. The purpose is to provide a reaping and harvesting machine that can be manufactured in the following manner.

The characteristic configuration of the invention for achieving the above object is that a pair of left and right main frames made of pipe material are arranged with an appropriate distance between the left and right, and the rear end of this main frame is
The main frame is connected via a transmission case connected to the engine, and the front end of the main frame is connected via a frame having a rectangular shape in front view, in which a horizontal conveying frame and a cutting blade frame are connected via a vertical frame. A plurality of rods for forming a planting grain culm introduction route each having a grass dividing plate at the tip are connected to the front part of the cutting blade frame at a predetermined interval in the width direction of the machine body, and a projection is provided on the horizontal conveyance frame. A harvested grain culm lateral conveyance device consisting of a chain with a chain is provided, and further,
A star wheel-shaped rotary pucker for raking grain culms is provided below the rear of the grass dividing plate, and a reaping device is provided below the rotary pucker and in front of the cutting blade frame, and a reaping conveyance unit is provided. A control handle 3 extends rearward from the main frames 5a, 5b, and wheels driven by power from the transmission case are disposed between the engine and the reaping conveyance section. , a transmission mechanism from the transmission case to the reaping conveyance unit is provided in one of the pair of left and right main frames, and a transmission mechanism protruding from the tip of the frame is connected to the reaping device and the horizontal conveyance unit. The rotary packer is further configured to be engaged with the lateral conveying device to drive the rotary packer.

In other words, the front parts of a pair of left and right main frames made of pipes are connected by the reaping conveyance section, and the rear parts of the main frames are connected by the engine and transmission case, and the overall shape is a rectangular frame with a space in the center in plan view. Because of this aircraft configuration, combined with the use of lightweight pipe material for the main frame, the overall structure was relatively lightweight yet sufficiently strong. Moreover, since the front and rear ends of the pair of left and right main frames are connected using the transverse transport frame, engine, and transmission case of the reaping transport section, costs can be reduced due to the dual use of members.

Furthermore, since the frame supporting the reaping conveyance section has a rectangular shape when viewed from the front, it is lightweight but strong. frame,
By making it as light as possible, costs can be reduced.

In order to transmit power from the transmission case to the reaping conveyance section, the power is passed through one of the pair of left and right main frames, and the power is branched to the reaping device and the horizontal conveyance device at its tip. ,
For example, compared to the case where the power is branched and transmitted directly from the transmission case to the reaping device and the horizontal conveyance device, a transmission mechanism installed inside one of the main frames is used to transmit the power to the reaping device and the horizontal conveyance device. It can be used as a dual-purpose transmission mechanism, simplifying the transmission structure.

In addition, since one of the pipe main frames is also used as a transmission case between the transmission case and the reaping conveyance section, a dedicated transmission case can be omitted and the parts can be used in common, resulting in weight and cost reductions. It is valid.

Since the picker for raking grain culms is engaged and driven by the horizontal conveyance device, a dedicated drive mechanism for the picker is not required, thereby simplifying the transmission structure of the reaping conveyance unit, reducing weight and cost. was completed. In addition, since the weight of the reaping transport section can be reduced in this way, the reaping transport section can be configured to have a wide cutting width but not be very heavy, making it easy to handle and perform efficient harvesting. It has become easier to configure the reaper.

Embodiments of the present invention will be described below based on the drawings.

This reaper is equipped with a reaping transport section 1 having four rows of grain culm introduction paths L at the front of the machine, an engine 2 and a control handle 3 at the rear of the machine, and propulsion wheels 4 at the middle of the front and rear of the machine. It has a basic configuration with .

A pair of left and right main frames 5a and 5b made of round pipes are arranged at an appropriate distance from each other in the front and rear intermediate parts of the machine body, and the reaping and conveying section 1 is connected to the front parts of both main frames 5a and 5b. An engine 2 is connected to the rear end of one main frame 5b, and a transmission case 6 directly connected to the side of the engine 2 is connected to the rear end of the other main frame 5a.
As a result, the fuselage frame structure has a large vertical through space between the left and right main frames 5a and 5b.

The reaping conveyance section 1 is constructed as follows. That is, a clipper-type reaping device 9 is installed along the front surface of the horizontally long frame 8 supported by the main frames 5a, 5b and the stays 7 extending from the main frames 5a, 5b.
is provided above the horizontally long frame 8, and conveying protrusions 10 are provided on the chains 10a, 10a.
Two sets of horizontal conveyance devices 10, 10 provided with b, 10b
are arranged in two stages, upper and lower, and are configured to transport the harvested grain culms in the right-lateral direction along an upright transport guide cover 11 and discharge them out of the machine.

The horizontally long frame 8 is formed into a rectangular frame when viewed from the front, in which a horizontal conveying frame 8a and a cutting blade frame 8b are connected via a vertical frame 8c. The main frames 5a, 5b are connected, and the stay 7,
7 are connected, and furthermore, the vertical frames 8c, 8
The upper part of the main frame 5a and the upper part of the pair of left and right main frames 5a and 5b are connected to each other via the frame 3A of the operating handle 3 that extends rearward. The handle frame 3A includes a pair of left and right main frames 5a and 5b.
a pair of frames 3a', 3a' connected to the upper part of the frame, a connecting frame 3b' connecting the pair of frames 3a', 3a', and the vertical frame extending forward from the connecting frame 3b'. 8c,
It is composed of frames 3c' and 3c' for connection to 8c.

The drive sprockets 12, 12 of both chains 10a, 10a are attached to a common drive shaft 13, and this drive shaft 13 is attached to the left main frame 5.
It is interlockingly connected via a chain 16 to an output shaft 15 of a bevel gear transmission case 14 connected to the front end of the transmission case 14a. Further, the end sprockets 17 and 18 of each chain 10a and 10a can be moved independently to adjust the tension.

The left main frame 5a is also used as a transmission case for the reaping conveyance section 1, and a transmission shaft 19 interlockingly connected to a gear transmission mechanism in the mission case 6 is inserted into the inside thereof. Then, the power supplied by the transmission shaft 19 is transmitted to the meshing clutch 20 in the bevel gear transmission case 14.
and is transmitted to the vertical output shaft 15 via a bevel gear transmission mechanism 21.
Further, a crank arm 22 for reciprocating the reaping device 9 left and right is connected to the lower end of the output shaft 15. Note that the clutch 20 is connected to the control handle 3.
The reaping clutch lever 23 is connected by wire to a reaping clutch lever 23 provided below the left hand grip 3a.

The horizontally long frame 8 has five arms 24 as rods extending forward in a cantilevered manner at appropriate intervals on the left and right sides.
The grain culm introduction path L is formed between....... The four arms 24 other than the leftmost arm 24 are bent upward in the middle, and a star wheel molded from plastic is attached to a bracket 25 attached to this upwardly bent portion 24a. A rotary packer 26 . . . is supported via a fixed support shaft 27 so as to freely rotate. A support shaft 27 is installed obliquely so that this pack car 26 rotates in a slightly forward-leaning position, and the rotation locus of each pack car 26 and the upper lateral conveyance device 10 are
The conveying protrusions 10b are configured so that their lateral movement trajectories interfere with each other, and by sequentially locking the pawls 26a of the packer 26 with the group of conveying protrusions 10b, the packer 26 is continuously driven to rotate. , the planted grain culm led to the introduction route L is sent to Patsucar 26...
The lower part is cut by the reaping device 9, and then the patch car 26...
The reaped grain culm is laterally conveyed by the upper and lower conveying devices 10, 10. In addition, a tapered grass divider plate 28 is installed in a downwardly inclined position in front of the front extending end of each arm 24 and the upper part of the pack car 26, and the planted grain culm is divided into these parts. Grass board 28...
The structure is such that the grass is smoothly separated and guided to the introduction route L. Further, below each packer 26, spring wires 29 for pressing the harvested grain culm against the front surface of the conveyance guide cover 11 are arranged in two stages, upper and lower.

Further, a grounding sled body 30 made of a round pipe is connected to the tip of the arm 24 at the center of the left and right sides so as to be able to swing up and down, and a connecting plate 31 extends upward from the sled body 30.
The height above the ground of the reaping conveyance section 1 can be adjusted as desired by changing the bolt connection position between the mower and the mounting bracket 32 provided on the arm 24 side.

The engine 2 is a horizontal shaft type air-cooled gasoline engine, and a starter pulley 33 around which an engine starting rope is wound is provided on the right outer side of the engine 2.
The transmission case 6 is connected to the left outer side which is the output side. Also, a fuel tank 34 is installed at the top of this engine 2, and an air cleaner 3 is installed at the rear.
5. A muffler 36 is provided on the left side, and an accelerator lever 37 of the engine 2 is provided near the left grip 3a of the control handle 3. The operating handle 3 extends rearward from the front portions of the main frames 5a and 5b in a bifurcated manner, and its intermediate stay 38 is supported by the upper portion of the engine 2.

The transmission case 6 and the left main frame 5a
A wheel transmission case 39 is connected to the left side of the transmission case below the connection point with the transmission case 6, and the output from the transmission case 6 is transmitted to the left side of the transmission case 39 through a chain transmission mechanism inside the case. The signal is transmitted to the axles 40 and 41 which are arranged in the same direction. In other words, the engine output is transmission case 6
The transmission system is branched into two systems, one transmission system driving the reaping and conveying section 1 via the left main frame 5a, and the other transmission system serving as a travel transmission system.
A main clutch lever 42 is provided near the right hand grip 3b of the operating handle 3 to connect and disconnect power at the upper ends of both transmission systems, and a gear shift lever that switches only the travel transmission system between forward and reverse directions to switch between forward and backward travel. 43 is provided at the rear of the mission case 6.

The wheel transmission case 39 is attached to the left main frame 5
The main support arm 45 is attached below a to be able to swing up and down about the traveling system output shaft center P of the transmission case 6, and has a circular arc elongated hole 44 extending upward from the transmission case 39. By tightening and fixing the frame 5a to the frame 5a with bolts 46, it can be fixed at any desired swing position.

The axles 40 and 41 protruding from the left and right ends of the wheel transmission case 39 are configured to rotate integrally, and the axle 41 protruding inward from the body (rightward in the figure) is supported by the transmission case 39. Main axle 4
1a, and an extension axle 41b pin-connected to the tip via a relay cylinder shaft 47. Specifically, the left axle 40 and the main axle 41a are constructed as an integral shaft. The relay cylinder shaft 47 is rotatably supported via a bearing 49 at the lower end of a bearing arm 48 attached to the right main frame 5b. Further, this bearing arm 48 is attached to the main frame 5b through an elongated hole 50 and a bolt 51 so that its mounting height can be freely changed and adjusted, and the position of the bearing 49 can be adjusted in accordance with the swing adjustment of the wheel transmission case 39. is configured so that it can be changed.

A pair of rubber tire wheels 4, 4 are connected by pins to the left axle 40 and the extension axle 41b of the right axle 41, respectively, so that the left and right main frames 5a, 5
A two-wheeled running mode is constructed in which a pair of wheels 4, 4 are positioned on the outside of b.

Although this reaping and harvesting machine mainly uses the two-wheeled mode as described above, as shown in FIG.
It is also possible to use it in a one-wheeled mode with two wheels 4 attached. Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the invention is not limited to the structure of the accompanying drawings by such entry.

[Brief explanation of drawings]

The drawings show an embodiment of a walk-behind reaping machine according to the invention, in which FIG. 1 is an overall side view, FIG. 2 is an overall plan view,
Fig. 3 is a perspective view showing the structure of the machine frame, Fig. 4 is an enlarged side view of the reaping transport section, Fig. 5 is a perspective view showing the transmission structure to the reaping transport section, and Fig. 6 is a cross-sectional plane of the wheel attachment section. 7 are cross-sectional plan views showing the wheel mounting portion in another usage mode. DESCRIPTION OF SYMBOLS 1... Reaping transport section, 2... Engine, 3... Operating handle, 4... Wheels, 5a, 5b... Main frame, 6... Mission case, 8a... Horizontal transport frame, 8b... Cutting blade Frame, 8c... Vertical frame, 8... Rectangular frame, 9... Reaping device,
DESCRIPTION OF SYMBOLS 10... Reaped grain culm lateral conveyance device, 10a... Chain, 10b... Conveyance protrusion, 19... Transmission mechanism, 2
4...Rod for forming planted grain culm introduction route, 26...
Rotating packer, 28... Grass dividing board, L... Planted grain culm introduction route.

Claims (1)

[Claims] 1 A pair of left and right main frames 5 made of pipe material
a, 5b are arranged with an appropriate left and right interval, and the rear ends of the main frames 5a, 5b are connected to the engine 2 via the transmission case 6 connected thereto, and the front ends of the main frames 5a, 5b are connected to each other via the engine 2 and the transmission case 6 connected thereto. of,
A horizontal transport frame 8a and a cutting blade frame 8b are connected via a frame 8 which is rectangular in front view and is connected via a vertical frame 8c, and a grass dividing plate 28 is provided at the front end of the cutting blade frame 8b. A plurality of rods 24 for forming the planted grain culm introduction path L are connected at predetermined intervals in the width direction of the machine body, and cut grain culm lateral transport devices 10, 10 consisting of chains with protrusions are attached to the lateral transport frame 8a. Further, a star wheel-shaped rotary pucker 26 for raking grain culms is provided below the rear of the grass dividing plate 28, and further, a rotary pucker 26 for raking grain culms in the shape of a star wheel is provided below the rotary pucker 26 and in front of the cutting blade frame 8b. A reaping device 9 is provided to form a reaping transport section 1, a control handle 3 extends rearward from the main frames 5a and 5b, and a reaping case 6 is provided between the engine 2 and the reaping transport section 1. A transmission mechanism 19 from the transmission case 6 to the reaping conveyance section 1 is placed in one frame 5a of the pair of left and right main frames 5a and 5b. While deploying, the transmission mechanism 19 protruding from the tip of the frame 5a is branched and transmitted to the reaping device 9 and the horizontal conveying device 10, and furthermore, the rotary packer 26 is engaged with the horizontal conveying device 10, A walk-behind reaping machine, characterized in that it is configured to drive the rotary raker 26.