JPH0620335Y2 - Frame structure of harvester - Google Patents

Description

Detailed Description of the Invention A. Purpose of device a. Industrial application This proposal relates to the improvement of the frame structure of the harvester.

b. 2. Description of the Related Art Conventional Techniques and Problems Therefor, for example, Japanese Patent Publication No. 60-6162, No. 61-37749, and No. 53-58109 are known. In Japanese Examined Patent Publication No. 60-6162, various agricultural equipment such as a cone harvester and a flare type harvester can be attached and detached by one touch with the first lock pin and the second lock pin on the right side of the connecting frame to be attached to the tractor. is there. However, the Japanese Patent Publication Sho-60-
No. 6162 can only attach various agricultural equipment to the right side of the connecting frame in a detachable manner. For example, since the harvester cannot be connected to the back of the connecting frame in a rearward posture, the split work cannot be performed. There was a flaw.

Further, in Japanese Utility Model Laid-Open No. 61-37749, a connecting tool 4 is provided on a horizontal rod of a connecting frame to a tractor and the like, and a connecting piece 7 for engaging and disengaging the connecting tool 4 is provided on a horizontal rod 6D of an agricultural machine frame 6.
Is provided, and the connecting tool and the connecting piece are connected by the pin 9. However, when connecting the connecting tool and the connecting piece with the pin 9 in Japanese Utility Model Publication No. 61-37749, the horizontal rod of the connecting frame and the horizontal rod of the agricultural machine frame are positioned parallel to each other in a direction orthogonal to the traveling direction, and In the side view, the agricultural machine frame cannot be locked to the connecting frame unless the connecting parts of the connecting member and the pin 9 provided on the connecting piece are aligned with each other. Furthermore, the actual exploitation 53
In No. 58109, a connecting rod 9 and a lower rotating rod 10 are pivotally attached to an agricultural tractor 14, and an upper engaging rod 4 and a lower rotating rod 10 are engaged with and disengage from the connecting rod 9 of a working machine 1. Reverse U
With a structure provided with an engaging body 6 having a groove 20 opened in a V shape, in order to connect a working machine to an agricultural tractor, the lower rotating rod 10 is raised and placed horizontally on the rear end face portion of the lower rotating rod 10. When the horizontal shaft 7 is inserted into the groove 20, the horizontal shaft 7 is locked in the groove 20 due to the ups and downs of the lock pieces 26, and then the connecting rod 9 and the upper engaging rod 4 are connected by the engaging pin 8. After the horizontal shaft 7 is locked in the groove 20, the work of engaging the connecting rod 9 and the upper engaging rod 4 remains, and the upper engaging rod 4 and the lower rotating rod 10 that engage and disengage from the connecting rod 9 are left. Since the working machine 1 is provided with the left and right engaging bodies 6 in which the grooves 20 that engage with and disengage from the left and right of the horizontal shaft 7 that is laterally installed in the working machine 1 are provided, the structure is complicated and the cost is high.

B. Configuration of device a. Means for Solving the Problems The present application intends to solve the above-mentioned problems by the following configurations. That is, in the case of the present application, the first horizontal rod 1A and the first vertical rod 1B are fixed in a substantially inverted L shape in a plane, and the first engaging portion 10 is provided at the tip end side of the first vertical rod 1B. A second engaging portion 11 is provided on a substantially middle side portion of the vertical rod 1B, and an upper engaging portion 14 and left and right lower engaging portions 15 which are engaged with and disengaged from the lifting device of the towing vehicle T are provided on the first horizontal rod 1A. Further, the pair of guide positioning plates 4 and 4 and the locking plates 4A and 4A are fixed to the first horizontal rod 1A to form the connecting frame 1, while the second horizontal rod 6D and the second vertical rod 6C are substantially flat. A third engaging portion 12 which is fixed to the L-shape and which engages and disengages with the first engaging portion 10 is provided on the tip side of the second vertical rod 6C, and the second engaging rod is provided at a substantially intermediate portion of the second vertical rod 6C. A fourth engaging portion 13 that engages and disengages with the mating portion 11 is provided, and an inverted U-shaped connecting piece 7, 7 that engages and disengages the first horizontal rod 1A is provided on the second horizontal rod 6D. 2 Yokomo 6D
The rotation restricting plate 7 ″, which comes into contact with the locking plates 4A, 4A,
7 ″ is provided to form the agricultural machine frame 6, and the connecting frame 1 and the agricultural machine frame 6 are used to solve the above-mentioned problem.

b. BEST MODE FOR CARRYING OUT THE INVENTION The harvester of the present application comprises a connecting frame 1 for engaging and disengaging the lifting device of a towing vehicle T and an agricultural machine frame 6 for fixing the harvester. The connecting frame 1 includes a first horizontal rod 1A and a first vertical rod 1
B is formed in a substantially inverted L shape in a plane, and the first
Guide positioning plates 4 and 4 are erected on the horizontal rod 1A, and locking plates 4A and 4A are suspended.

In addition, the agricultural machine frame 6 includes a second vertical rod 6C and a second horizontal rod 6
D is formed in a substantially L shape in a plane, and is connected to the second horizontal rod 6D in an inverted U shape to be disengaged from the first horizontal rod 1A on the side portion of the guide positioning plates 4 and 4. Rotation regulating plates 7 ″, 7 ″ are provided which come into contact with the pieces 7, 7 and the locking plates 4A, 4A. The guide positioning plates 4, 4 and the connecting pieces 7, 7
Insertion ports 4 ', 4', 7 ', 7'of the pin 9 are bored therethrough.

Reference numerals 4A 'and 4A' indicate rear portions of the locking plates 4A and 4A.

Each component will be described in detail below in order.

A lower link pin 1C and a bevel gear transmission 1D are provided on the first horizontal rod 1A of the connecting frame 1, and a first lock pin 2A which is a first engaging portion 10 is advanced and retracted at the tip of the first vertical rod 1B. A cylindrical body 2C is provided at a substantially central portion of the right side surface of the first vertical rod 1B so as to project freely, and a second lock pin 2B serving as a second engaging portion 11 is provided on the cylindrical body 2C. It is provided so that it can move back and forth in the direction of the horizontal rod 18. The second lock pin 2B has a sliding surface 2B 'formed by inclining the rear end surface thereof to the right, and also has a compression coil spring 2B ".
Is urged backwards.

On the other hand, at the tip of the left side surface of the second vertical rod 6C in the agricultural machine frame 6 to be engaged with and disengaged from the connecting frame 1, the connecting member 6A that is the conical third opening 12 that is open only downward is projected. A connection hole 6A 'into which the first lock pin 2A of the connection frame 1 is inserted and removed is formed on the front surface of the connection member 6A, and a second lock pin of the connection frame 1 is provided behind the connection member 6A. A planar L-shaped engaging piece 6B, which is the fourth engaging portion 13 to be engaged with and disengaged from 2B, is provided in a protruding manner.

A top mast 1E having a top link pin hole 1E 'for inserting and removing a top link pin of a top link pivotally attached to a tractor which is a towing vehicle T is fixed to the connection frame 1, and the input shaft is attached to the top mast. 1D ', a bevel gear transmission 1D having a side output shaft 1D "to the harvester, and a rear output shaft 1D are detachably fixed.

Further, the first lock pin 2A arranged at the tip of the first vertical rod 1B is biased forward by a compression coil spring 2A '. The first lock pin 2A is connected to one arm of the rotatable bell crank 2 via a rope 2A ″.

c. Action Next, the action of the present invention will be described. For example, when a crop is to be mowed in the field where dent cones are raised (cutting work), the harvester H is connected to the connection frame 1 rearward as shown in FIG.

That is, the tractor, which is a towing vehicle equipped with the connecting frame 1, is moved backward toward the second horizontal rod 6D of the agricultural machine frame 6,
The first horizontal rod 1A of the connecting frame 1 is lifted by a tractor lifting device from below the connecting pieces 7, 7 having an inverted U shape provided on the second horizontal rod 6D, and is installed on the second horizontal rod of the agricultural machine frame 6. Inverted U-shaped connecting piece 7, 7 and first horizontal rod 1A
The pins 9 and 9 to the insertion openings 4 ', 4', 7'and 7 '.
Insert and lock. At this time, the rear portions 4A ', 4A' of the locking plates 4A, 4A provided on the first horizontal rod 1A are constructed integrally with the second U-shaped connecting pieces 7, 7 of the second horizontal rod 6D in this embodiment. The rotation regulating plates 7 ″, 7 ″ come into contact with the front surfaces of the rotation regulating plates 7 ″, and the rotation of the harvester H around the first horizontal rod 1A is regulated.

As a result, the tractor is moved backward (in the direction B) to enter the field in which the crops are napped, and the crop is cut while the vehicle is moving backward to create a passage through which the tractor can freely move (division work).

After this passage is formed, the posture of the harvester H is switched to the side-mounted type which is normally practiced as shown in FIG. 3, and the tractor is moved forward to harvest crops.

That is, the pins 9 and 9 are connected to the guide positioning plates 4 and 4 and the connecting pieces 7 and 7.
The harvester H is detached from the connecting frame 1 by lowering the connecting frame 1 from the connecting frame 1 by changing the direction of the tractor 180 degrees and inserting the first lock pin 2A at the tip of the connecting frame 1 into the connecting member 6A of the agricultural machine frame 6. , Connecting frame 1
When is slightly rotated to the right, the second lock pin 2B slides backward due to the contact of the sliding surface 2B 'with the engaging piece 6B and engages with the engaging piece 6B. Thereby, the harvester H is connected to the right side portion of the connecting frame 1.

Then, the trailer TR is connected to the rear of the connecting frame 1 and is moved forward (in the F direction) to perform the harvesting work, and the harvested product is stored in the trailer TR. Further, when removing the harvester H from the connection frame 1, the bell crank 2A is rotated in the direction a, and the first lock pin 2A is inserted through the cable 3A.
Back, the first lock pin 2A and the agricultural machine frame 6
Since the engagement of the connecting member 6A fixed to the second vertical rod with the connecting hole 6A 'is released, the tractor is moved forward after operating the elevating device of the tractor to slightly lower the connecting frame 1. Then, the connecting frame 1 and the agricultural machine frame 6 are separated from each other.

As a result, it is possible to connect an agricultural machine frame to which another harvester (for example, a flail harvester) is fixed to the connection frame 1.

Alternatively, a trailer for loading harvested feed can be connected to the connection frame 1.

C. Effects of the Invention Since the present invention is configured as described above, it has the following effects.

That is, when attaching or detaching the agricultural machine frame equipped with the harvester on the back surface of the connecting frame, the simple operation of raising and lowering the first horizontal rod of the connecting frame at the lower position of the connecting piece provided on the second horizontal rod of the agricultural machine frame is performed. Since it can be attached and detached, the connecting time can be shortened, and moreover, the locking plate is provided on the first horizontal rod of the connecting frame, and the rotation restricting plate is provided on the second horizontal rod of the agricultural machine frame. Since the rotation of the agricultural machine frame around the first horizontal rod of the connecting frame can be prevented by a simple structure in which the regulation plates are brought into contact with each other, it is possible to provide the consumer with a cheaper harvester frame than before.

[Brief description of drawings]

Fig. 1 is a plan view with a part cut away when mowing the aisle, Fig. 2 is a side view when connecting, Fig. 3 is a plan view with a part cut away during harvesting work, and Fig. 4 is a trailer. FIG. 5 is a plan view in which a part of the connecting frame is cut away when only the tow is pulled. 1 ... Connection frame 4 ... Guide positioning plate 4A ... Locking plate 6 ... Agricultural machine frame 7 ... Connection piece

Claims (1)

[Scope of utility model registration request] 1. A first horizontal rod 1A and a first vertical rod 1B are substantially inverted L in a plane.
The first vertical rod 1B is provided with a first engaging portion 10 at the tip end side thereof, and the first vertical rod 1B is provided with a second engaging portion 11 at a substantially middle side portion thereof. The rod 1A is provided with an upper engaging portion 14 and left and right lower engaging portions 15 which are engaged with and disengaged from the lifting device of the towing vehicle T. Further, the first horizontal rod 1A is provided with a pair of guide positioning plates 4, 4.
4 and the locking plates 4A, 4A are fixed to form the connecting frame 1, while the second horizontal rod 6D and the second vertical rod 6C are fixed in a substantially L-shaped plane, and the second vertical rod 6C has a tip end side. First engaging portion 10
A third engaging portion 12 for engaging and disengaging with is provided, a fourth engaging portion 13 for engaging and disengaging with the second engaging portion 11 is provided at a substantially middle portion of the second vertical rod 6C, and the second horizontal rod 6D is provided. Is provided with inverted U-shaped connecting pieces 7, 7 with which the first horizontal rod 1A is engaged and disengaged, and further the second
The horizontal rod 6D is provided with rotation restricting plates 7 ″, 7 ″ that come into contact with the locking plates 4A, 4A to form an agricultural machine frame 6, and the connecting frame 1 and the agricultural machine frame 6 are used for harvesting. Frame structure of the machine.