JPS595606Y2 - reaper - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a reaper whose body is supported on the ground by a uniaxial running section.

This type of reaper has come into widespread use in recent years due to its simple mechanical structure and ease of steering, but when running wheels of the same diameter are used, the amount of subsidence of these wheels into the field changes due to the hardness and softness of the field. The slope of the machine changes back and forth, making it difficult to mow at an appropriate cutting height, and the reaction force from the ground to the forward rotation of the wheels pushes the reaping device at the front of the machine upward. There was a risk that the reaping device would vibrate up and down due to the reaction force, making the cutting height unstable.

In view of these circumstances, it is an object of the present invention to provide a structure that allows reaping operations to be carried out stably and well even in fields with different hardness, such as wet rice fields.

In the reaping machine of the present invention, a reaping device is attached to the front part of the main transmission case, and the auxiliary transmission case is fixed to the main transmission case so as to be able to swing freely around a horizontal pivot shaft provided at the bottom of the main transmission case. A uniaxial axle is provided on the free end side of the auxiliary transmission case, extending rearward and downward from the lower part of the transmission case, and supporting the running wheels in a detachable manner, thereby supporting the lateral pivot shaft. The present invention is characterized in that a large-diameter wheel can be pivotally supported on the axle by rearward rocking displacement of the auxiliary transmission case, which serves as a front fulcrum.

In other words, in wet fields where the ground is soft, the secondary transmission case is swung backwards to support the large-diameter wheels on the axle, and conversely, in hard dry fields, the secondary mission case is moved forward compared to the wet field condition. It is possible to make the wheels oscillate as much as possible, and to support small-diameter wheels on the axle.

By using it in this way, the large-diameter wheels can be used in soft fields such as wet fields to reduce subsidence.In addition to eliminating the backward tilt of the machine, the wheels can be moved further back than in dry fields. We were able to eliminate the lifting of the reaping device due to ground resistance due to the weight of the machine.

Conversely, when working on hard fields such as dry fields, the diameter of the wheels is reduced and the axle is moved forward to reduce the contact area of the wheels and to prevent the excessive weight of the reaping device from pressing against the ground. By doing so, it has become possible to reduce these ground resistances and run smoothly.

In addition, as mentioned above, not only has the axle been displaced due to the replacement of large and small diameter wheels, allowing the vehicle to run in a well-balanced state between the front and rear, but the sub-transmission case itself has been made to function as an arm to support the axle. Because of this, it was possible to achieve the deceleration effect by using the auxiliary transmission case and the omission of the arm member at the same time, making it even more advantageous in practice.

Next, embodiments of the present invention will be described.

A reaping device 6 composed of a pulling device 2, a cutting blade 3, a horizontal conveying device 4, and a binding device 5 is attached and fixed to the front of the vertically long traveling main transmission case 1. Deck 1 is installed at the rear, and this deck 7
Engine 8 is mounted on top.

An operating handle 9 is extended rearward and upward from the upper part of the main transmission case 1.

An auxiliary transmission case 10 is connected to the lower part of the main transmission case 1 facing rearward and downward, and a uniaxial axle 11. 11
is provided, and running wheels 12, 12 are removably supported on this axle 11.11.

G is located directly in front of main mission case 1 at the center of gravity of the aircraft.

The structure of the sub-mission case 10 will now be described in detail.

(See Figures 2 and 3) Pivot shafts 13, 13 are protruded from both sides of the lower part of the main mission case 1.
3. One end of the sub-mission case 10, which is divided into two parts, is rotatably fitted into the sub-mission case 13 to connect the sub-mission case 1o to the main mission case 1.

In this sub-mission case 10, the left and right output shafts 14, 14 provided in the main mission case 1 and the left and right axles 11. Left and right chain interlocking device 1 that interlocks 11
5. 15 are provided.

The wheel shaft support of the axle 11 projects to both sides of the other end of the auxiliary transmission case 10 and is shaped like a hexagonal column, and the hexagonal hole boss portion of the wheel 12 is externally connected to the wheel shaft support. It is designed so that the wheel 12 can be easily attached and detached using the pins 1B and 1B.

A screw shaft 1B is provided on the auxiliary transmission case 10, one end of which is pivotally supported so as to be swingable, and the middle portion of which is screwed into the screw hole 17 of the deck 7, and this screw shaft 1B is rotated by an adjustment handle 19. Accordingly, the auxiliary mission case 10 is configured to be able to be adjusted by swinging around the pivot shaft 13 as a front fulcrum.

With this structure, as shown in FIG.
The work is carried out by holding the large diameter wheels 12a, 12a, which are slightly shorter than the distance between the axle 11 and the reaping device 6, supported by the axles 11, 11, in a rearward and downwardly inclined position where the axle is nearly horizontal.

Furthermore, as shown in Figure 4, during reaping work in hard fields such as dry fields, the sub-transmission case 10 is tilted rearward and downward, nearly perpendicular to the ground, and the axle 1j,
Wheels 12b, 12b with a small diameter slightly shorter than the distance between the axle 11 and the reaping device 6 are attached to the axle 11. 11 to support the work.

It should be noted that the diameters of the wheels 12, 12 and the inclined posture of the sub-transmission case 10 can be used even in an intermediate state as shown in FIG. 4A above.

[Brief explanation of drawings]

The drawings show an embodiment of the reaper according to the present invention, in which FIG. 1 is an overall plan view, FIG. 2 is an overall side view, and FIG. 3 is an overall side view.
-III line sectional view, FIG. 4A, the opening is a side view showing the state of use. 1... Main mission case, 6... Reaping device, 10... Sub mission case, 11.
...Axle, 12...Wheel, 12 a...
...Large diameter wheel, 13...Pivot shaft.

Claims (1)

[Scope of utility model registration request] A reaping device 6 is attached to the front part of the main mission case 1, and the sub mission case 10 is attached to the main mission case 1 so as to be swingable and fixed around a lateral pivot shaft 13 provided at the bottom of the main mission case 1. The sub-mission case 1 extends rearward and downward from the bottom of the sub-mission case 1.
A uniaxial axle 11.11 for removably supporting a running wheel 12.12 is provided on the free end side of the auxiliary transmission case 10 with the lateral pivot shaft 13 as a front fulcrum.
, the larger diameter wheel 12a is moved to the axle 11. 11.