JPH0333202Y2 - - Google Patents

Description

[Detailed description of the invention] Purpose of the invention A: Industrial application field This invention relates to an improvement of the frame structure of a harvester.

B. Conventional technology and its problems As a conventional technology, for example, Japanese Patent Application Laid-open No. 56-39711
is publicly known.

This allows various types of agricultural equipment, such as a corn harvester or a flail harvester, to be attached or detached with a single touch from the right side of a connecting frame attached to a tractor using a first lock pin and a second lock pin.

However, with conventional systems, various agricultural equipment can only be attached to the right side of the connecting frame, and, for example, a harvester cannot be connected to the back of the connecting frame in a backward-facing position, making it impossible to perform in-between work. There were flaws.

Structure A of the invention Means for solving the problem The present invention further includes a connecting device on the rear side of the connecting frame, connects a harvesting machine such as a corn harvester to the connecting device in a rearward facing position, and causes the tractor to travel backwards. This is an attempt to solve the above-mentioned problem by configuring the tractor to cut the path (so-called cutting work) using the tractor.

B. Embodiment of the invention The harvesting machine of the present application consists of a connecting frame 1 to a tractor or the like and an agricultural machine frame 6 to the harvesting machine or the like.

The connecting frame 1 has a horizontal rod 1A and a vertical rod 1B.
is configured to have an L-shape in plane, and connectors 4, 4 are provided on the back surface of the horizontal rod 1A.

Further, the agricultural machine frame 6 has a vertical rod 6C and a horizontal rod 6D having a planar L-shape, and the vertical rod 6C is provided with connecting pieces 7, 7 to be connected to and detached from the connecting tools 4, 4.

Each component will be explained in detail below.

A lower link pin 1C and a bevel gear transmission device 1D are provided on the horizontal rod 1A of the connecting frame 1, and a vertical rod 1B is provided with a lower link pin 1C and a bevel gear transmission device 1D.
A first lock pin 2A is provided at the tip of the vertical rod 1B so that it can move forward and backward, and a cylindrical body 2 is provided at the center of the right side of the vertical rod 1B.
A second lock pin 2B is provided on the cylindrical body so as to be movable forward and backward in the direction of the horizontal rod.

The second lock pin 2B has a rear end surface inclined to the right to form a sliding surface 2B', and is configured to act rearward by a compression coil spring 2B''.

On the other hand, a connecting member 6A having a conical shape and opening only downward is protruded from the tip of the left side of the vertical rod in the agricultural machine frame 6 to be connected to the connecting frame 1. A connecting hole 6A' that engages and disengages from the first lock pin 2A is formed, and a plane L that engages and disengages from the second lock pin 2B of the connection frame is formed at the rear of the connection member.
A shaped engagement piece 6B is provided in a protruding manner.

1D′ is the input shaft, 1D″ is the output shaft to the harvester, 1
D is an output shaft to an elevator (not shown).

1E is a top mast, this top mast 1E
A top link hole 1E' is formed in the top link hole 1E' for connection with the top link of a tractor.

A compression coil spring 2A' is attached to the first lock pin 2A, and is connected to one arm of a rotatable bell crank 2A via a rope 2A''.

C Operation Next, we will describe the operation of the present invention. For example, when starting to cut a crop in a field where dent corn is standing (splitting work), the harvester H is connected backward to the connecting frame 1 as shown in Figure 1. do.

That is, the connecting piece 7 on the back side of the harvester H is connected to the connecting tool 4 of the connecting frame 1 with a dowel pin 9.

As a result, the tractor T is driven backwards (in direction B), enters the field where crops are standing, and while traveling backwards, the crops are harvested to create a path through which the tractor can move freely (splitting work).

After this path is created, the attitude of the harvester H is changed to the commonly used side-mounted attitude as shown in FIG. 2, and the tractor is driven forward to harvest the crops.

That is, the dowel pin 9 of the coupling tool 4 is removed to separate the harvester H from the coupling frame 1, the direction of the tractor is changed 180 degrees, and the first lock pin 2A at the tip of the coupling frame 1 is attached to the coupling member 6A of the agricultural machine frame 6. When the connecting frame 1 is slightly rotated to the right, the inclined surface of the second lock pin 2B comes into contact with the engagement piece 6B and the second lock pin 2B slides.
B engages with the engagement piece 6B.

Thereby, the harvester H is connected to the right side of the connection frame 1.

Then, the trailer TR is placed behind the connecting frame 1.
The harvesting work is carried out by connecting the trailers and moving forward (direction F), and the harvested products are stored in the trailer TR.

Further, when removing the harvester H from the connection frame 1, the bell crank is rotated in the A direction, the cable 3A is pulled, and the first lock pin 2A is moved backward, and the harvester H is removed.

Thereby, it is also possible to connect another harvester (for example a flail harvester) to this connecting frame 1, or it is also possible to tow only a trailer full of harvested forage to the connecting frame 1.

Effects of the invention As described above, in this invention, by providing a connector on the back of the connecting frame, it is possible to connect the harvester facing backwards and with the center of the tractor etc. and the center of the harvester being almost the same. This makes it possible to move the tractor backwards to mow the path (splitting work), and the width of the machine is narrower, which is advantageous when moving. It is also possible to carry out the commonly practiced harvesting work, which is carried out by attaching the device and moving the tractor forward.

[Brief explanation of the drawing]

Figure 1 is a plan view showing intermediate splitting work, Figure 2 is a plan view showing side reaping, Figure 3 is a plan view showing transport work by trailer, and Figure 4 is a plan view with a part of the connecting frame cut away. It is a diagram. 1... Connecting frame, 4... Connecting tool, 6... Agricultural machinery frame, 7... Connecting piece.

Claims (1)

[Claims for Utility Model Registration] A frame structure for a harvester, characterized by comprising a frame 1 for connecting to a tractor, etc., and an agricultural machine frame 6, for connecting to a harvester, etc., having the following conditions. B. The above-mentioned connecting frame 1 has a horizontal rod 1A and a vertical rod 1B arranged in a planar L shape, and a first lock pin 2A is provided at the tip of the vertical rod 1B, and a second lock pin 2A is provided at the approximately center portion of the right side of the vertical rod 1B. A lock pin 2B is provided, and the horizontal rod 1A is provided with an upper engaging portion and a lower engaging portion for engaging and disengaging from a lifting device such as a tractor, and dowel pins 9, 9 are provided on the back surface of the horizontal rod 1A. Connectors 4, 4 are provided. (b) The agricultural machine frame 6 has a horizontal rod 6D and a vertical rod 6C that are fixed to the rear of the harvesting machine, and has a horizontal L-shape, and a connecting member 6A that is to be engaged and disengaged from the first lock pin 2A is provided near the tip of the vertical rod 6C. , vertical rod 6
A flat L-shaped locking bracket 6B is provided on the side surface of C to be engaged and disengaged from the second lock pin 2B, while connecting pieces 7, 7 to be engaged and disengaged from the couplings 4, 4 of the connection frame 1 are provided on the horizontal rod 6D. being given.