JPS627064Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention involves attaching a reaping binding unit, which includes a pulling device, a reaping device, a binding device, and a transmission case that houses the drive mechanism of these devices, to a mounting frame, and connecting the mounting frame and an engine. and a gear transmission case arranged side by side in the lateral direction of the fuselage.
The reaping is carried out by connecting two frames arranged side by side with a space between them on the left and right, and one running wheel attached to a wheel transmission case extending from the gear transmission case is disposed between the two frames. A sensor for detecting the presence or absence of a stem culm in a path for introducing the stem culm into the device is provided in the reaping binding part, and a reaping clutch is provided for automatically controlling power transmission to the reaping binding part on and off based on the rocking force of the sensor. This invention relates to a walking type reaping and binding machine.

In conventional walk-behind reaping and tying machines, power from the engine was transmitted to the drive mechanism of the reaping and tying section through a belt transmission mechanism operated intermittently by a so-called tension clutch (for example,
(See Publication No. 24498). Therefore, the tension clutch used as the reaping clutch needs to be installed behind the drive mechanism of the reaping binding section, and the reaping clutch is automatically operated on and off by the rocking force of the sensor that detects the presence or absence of the stem culm. When turning on and off power transmission to the reaping bundling section, the long distance from the sensor to the reaping clutch complicates the linkage mechanism between the sensor and the reaping clutch, which inevitably reduces the sensitivity of the sensor.

The present invention was developed in view of the above-mentioned circumstances, and it not only improves the sensitivity of the sensor, but also
The purpose is to simplify the structure for this purpose.

The characteristic configuration of the present invention taken to achieve the above object is that one of the frames is a hollow frame, and a transmission rotation shaft extending from the driving part to the transmission case is installed inside the hollow frame. However, the clutch is disposed near the end of the power transmission rotation shaft on the reaping binding section side, and this configuration provides the following effects.

That is, since the reaping clutch is provided near the end of the power transmission rotation shaft on the reaping bundling side and the distance between the sensor and the reaping clutch is shortened, the linkage mechanism between the sensor and the reaping clutch is simplified, and the rocking force of the sensor is reduced. By making it smaller than before, the reaping clutch can be operated intermittently and the sensitivity of the sensor can be improved.

Moreover, since the transmission rotation shaft is internally housed within the frame that connects the driving part and the reaping binding part, the reaping binding part and the driving part, in which the engine and gear transmission case are arranged side by side, are connected with the running wheels in between. Although this is a walk-behind reaping and tying machine with a well-balanced weight arrangement at the front and rear of the machine, we have succeeded in simplifying the transmission structure to the reaping and tying section.

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

A walking-type single-row, single-wheel binder mainly used for wet fields is constructed as shown in FIGS. 1 and 2.

At the rear end of the fuselage, a driving unit 3 is arranged, which is made up of an engine 1 and a gear transmission case 2 that are directly connected in parallel in the lateral direction of the aircraft. These left and right main frames 4 extend with a gap between them.
A reaping binding part 5 is connected to the front parts of the reaping binding parts a and 4b via reaping binding part attachment frames 6 and 6, and the driving part 3, the reaping binding part 5 and the pair of main frames 4a,
4b are connected in a loop.

The wheel transmission case 7 is installed from the lower side of the transmission case 2 and directly below one of the main frames 4b.
is extended up and down so that the swing angle can be changed,
One wide low-pressure tire wheel 8 is mounted on one side of the free end of the case 7 so as to be positioned between the two main frames 4a and 4b, and by changing the swing angle of the transmission case 7, the height of the aircraft from the ground can be adjusted. I am planning to change it.

The reaping binding unit 5 includes a pulling device 9, a clipper type reaping device 10, a binding device 12, these devices 9,
Transmission case 1 housing drive mechanisms 10 and 12
6, cross-feeding guide plate 11 for harvested grain culm, string holder 13,
and a pair of left and right operating handles 14, 14, etc.

The transmission structure to the reaping binding section 5 is constructed as shown in FIG. That is, the driving unit 3
One of the main frames 4a and 4b is connected to the transmission case 1 so as to serve as a connecting member between the main frames 4a and 4b and the reaping binding section 5.
6, and the rear end of the transmission rotation shaft 15 which is housed inside the transmission shaft 15 is interlocked with the gear transmission case 2 by a bevel gear, and the front end thereof is inserted into the transmission case 16 provided in the reaping binding section 5. hand,
The driving part 3 and the reaping binding part 5 are interlocked and connected.
The transmission rotation shaft 15 is interlocked with a vertical drive shaft 18 within a transmission case 16 via a reaping clutch 17 and a bevel gear interlocking mechanism. A crank arm 19 for driving the reaping section is attached to the lower end of this drive shaft 18.
are connected, and a binding device 12 is installed between the top and bottom.
A transmission chain 20 is wound around.

Incidentally, power is transmitted to the pulling device 9 via a binding device 12.

The reaping clutch 17 is disposed near the end of the reaping binding section side of the transmission rotating shaft 15 in order to shorten the transmission system thereto. Further, while the stem culm is being pulled up by the pulling device 9, the cutting unit 10 is
A sensor 22 is provided on the stem culm introduction path 21 to be introduced to the stem culm, and is designed to detect the presence or absence of the stem culm in the path 21 by swinging displacement caused by contact with the stem culm. The sensor 22 and the clutch 17 are interlocked and connected so that they are automatically intermittent operated by the rocking force based on the detection.
When not reaping, the driving of the reaping section 10 and the lifting device 9 is automatically stopped. Further, as described above, the reaping clutch 17 can be switched between a state in which it is automatically engaged and operated and a state in which it is manually operated in and out by the clutch lever 23 provided on one of the handles 14. It is composed of

Incidentally, although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an overall side view, FIG. 2 is an overall plan view, FIG. 3 is a perspective view of a frame structure, and FIG. 4 is a schematic diagram of a reaping part transmission structure. 1... Engine, 2... Mission case, 3
...Motor drive unit, 4a, 4b...Frame, 5...Reaping binding section, 6...Mounting frame, 7...Wheel transmission case, 8...Travelling wheel, 9...Lifting device, 1
0... Reaping device, 12... Binding device, 15... Transmission rotating shaft, 16... Transmission case, 17... Reaping clutch, 21... Path, 22... Sensor.

Claims (1)

[Scope of utility model registration request] A reaping binding unit 5 comprising a pulling device 9, a reaping device 10, a binding device 12, and a transmission case 16 that houses the drive mechanisms of these devices 9, 10, 12 is attached to a mounting frame 6, and the mounting frame 6 and A driving unit 3 consisting of an engine 1 and a gear transmission case 2 arranged side by side in the lateral direction of the aircraft body is connected by two frames 4a and 4b arranged side by side with an interval left and right, and the gear transmission case One running wheel 8 attached to a wheel transmission case 7 extending from 2 is disposed between both frames 4a and 4b, and the presence or absence of a stem culm in the stem culm introduction path 21 to the reaping device 10 is detected. A sensor 22 for detection is provided in the reaping binding part 5, and the swinging force of the sensor 22 causes the reaping binding part 5 to
In a walk-behind reaping and tying machine provided with a reaping clutch 17 that automatically operates on and off the power transmission to one of the frames 4a and 4b, one of the frames 4b
is a hollow frame, and a transmission rotating shaft 15 extending from the driving section 3 to the transmission case 16 is installed inside the hollow frame 4b, and the clutch 17
A walk-behind reaping and tying machine, characterized in that: is disposed near the end of the transmission rotation shaft 15 on the side of the reaping and tying section.