JPS6117445B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to improvement of a mower conditioner, and provides an inexpensive and lightweight mower conditioner that allows the conditioner to be easily attached and detached without extensive modification of a conventional mower. .

Accelerating grass drying is a necessity in order to produce good hay under our country's rainy conditions.
For this purpose, a mower conditioner is used. However, conventional mower conditioners generally combine a pair of crushing rollers that span the entire width of the cutting section of the mower, and crush the grass between the crushing rollers, which has the disadvantage of being heavy and expensive. It was hot. In addition, in the feeding of fresh grass, high-moisture silage, and harvesting of whole crops that do not require acceleration of crushing and drying, the former requires wasteful energy consumption, and the latter results in a large loss of nutritious fruit.

The present invention has been developed in view of these conventional problems, and is characterized by a mower that is provided with a safety frame above the reaping section, which is rotatable about a horizontal axis. A conditioner is provided on a supported tine shaft with a large number of tines for applying an adjusting action while raking up the grass cut by the cutting part when the tine shaft rotates.The conditioner is removably positioned behind and diagonally above the cutting part. A conditioner cover for guiding grass raked up by the tines of the conditioner to the rear side is detachably attached to the safety frame.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. In FIGS. 1 to 4, 1 is a tractor, and a mower conditioner is attached to the rear of the tractor 1. The mower conditioner includes a mower 2, a conditioner 3, and a conditioner cover 4. The mower 2 includes a machine frame 6 that is mounted to the rear of the tractor 1 via a three-point linkage mechanism 5 so as to be able to rise and fall freely, and a gear that is pivotally connected to one lateral end of the machine frame 6 via a longitudinal transmission shaft 7. case 8
, a flat transmission case 9 protruding laterally outward from the lower end of the gear case 8, and a plurality of (for example, four) rotating disks arranged on the transmission case 9 at equal intervals in the lateral direction. 10, a cutting blade body 11, etc. attached to the rotary disk 10, and a reaping section 12 is constituted by the transmission case 9, the rotary disk 10, the cutting blade body 11, etc. Multiple rotating disks 10
A truncated conical grass collection drum 13 is provided on the rotary disk 10 at the outer end. Further, each rotary disk 10 is made into a set of two, and each set is driven in opposite directions so that the grass cut by each set gathers in the center. The driving force is the PTO of tractor 1.
The signal is transmitted from the shaft 14 through the universal joint shaft 15 and input shaft 16 to each rotating disk 10 via each transmission system in the belt cover 17, gear case 8, and transmission case 9. A safety frame 18 located above the reaping section 12 is attached to the gear case 8. The safety frame 18 includes an inverted L-shaped support 19 that is cantilever-supported on the gear case 8 and extends laterally along the reaping section 12, and is fixed to the support support 19 and protrudes forward and backward from the reaping section 12. A pair of mounting brackets 21 are fixed to the support column 19 at a predetermined interval in the lateral direction. The conditioner 3 includes a pair of side frames 22 on the left side, a tine shaft 24 rotatably supported by each side frame 22 via a bearing case 23 etc. around a horizontal axis, and a tine shaft 24 that is supported in the circumferential direction and axial direction. It has a large number of tines 25 provided at required intervals, and anti-scattering disks 26 fixed to both ends of the tine shaft 24. Attach the bolts 2 to each mounting bracket 21 of the column 19 so that the shaft 24 is located at the rear and upper side of the reaping section 12.
7 and a nut 28 in a detachable manner. On the grass collecting drum 13 side, the outermost tine 25 is provided so as to be located in front of the inner edge of the grass collecting drum 13. The tine shaft 25 is driven in the direction of arrow a from an output shaft 30 of a gear case 29 via a universal joint shaft 31, and the gear case 29 is attached to the rear side of the belt cover 17 on the axis of the input shaft 16. . As shown in FIG. 7, each tine 25 is made by bending a strip material into an L-shape.
A pair of these are assembled in a Y-shape and are pivotally mounted to a bracket 31 of the tine shaft 24 with a mounting bolt 32. The brackets 31 are a pair as shown in FIGS. 8 and 9, and a U-shaped holder 33 is attached with bolts 32 so as to sandwich the brackets 31.
A cushioning material 34 such as rubber is attached to the holder 33 to absorb the impact of the tines 25.
In addition, the tines 25 and the bracket 3 are attached to the buffer material 34.
A contact plate 35 is provided so as to be in contact with 1. The conditioner cover 4 is intended to prevent grass etc. blown away by the conditioner 3 from scattering, and is attached to each side frame by bolts 37 via the side plate portion 36 so as to cover the conditioner 3 from above. It is detachably attached to 22. Note that each side plate portion 36 is provided with a cutout portion 38 to avoid interference with the rectangular frame 20 of the safety frame 18. A safety cover 39 is made of a flexible sheet material and is attached to the safety frame 18 so as to cover the area above and around the cutting section 12.
However, the conditioner cover 4 is formed in a cutout shape.

Next, the effect will be explained. When attaching the conditioner 3 to the mower 2, align each side frame 22 of the conditioner 3 with the mounting bracket 21, tighten with bolts 27 and nuts 28, and then attach the conditioner 3 so as to cover the upper part of the conditioner 3. Place the cover 4 on each side plate part 3.
6 to the side frame 22 with bolts 37, and since the safety frame 18 is used,
It is extremely easy to install. and,
After mounting, the tine shaft 24 is connected to the output shaft 30 of the gear case 29 via the universal joint shaft 31.

During grass cutting work, each rotary disk 10 rotates in the direction of the arrow.
The grass cut by the cutting blade body 11 is sent to the rear in approximately two rows of grass collecting rows, and since there is a grass collecting drum 13 at the outer end, the cut grass is left uncut. clearly separated from the parts. On the other hand, the reaping section 12
Behind each tine 25 of conditioner 3
are rotating in the direction of arrow a around the tine shaft 24, so the cut grass is sent rearward along the conditioner cover 4 that has been raked up by the rotating tines 25. Therefore, at this time, the stems of the grass, etc. are bent or damaged, and are therefore subjected to a predetermined adjustment action. As mentioned above, the grass collecting drum 13 has a grass collecting function that is clearly distinguishable from the uncut part, and most of the grass is sent to the inside, so the tines 25 in this part are located near the inner side of the grass collecting drum 13. Therefore, the number of tines is reduced accordingly, and the weight can be reduced. The tines 25 are elastically supported by the buffer material 34, and are approximately radial to the tine shaft 24 during normal rotation, but if an overload is applied, the buffer material 34 is compressed via the contact plate 35, and the bolt Run around the area in the direction of arrow b in Figure 8.

When driving on the road, remove the universal joint shaft 31,
The reaping section 12 side is rotated around the transmission shaft 7 and locked in the upright state by appropriate means.

When the conditioner 3 and the conditioner cover 4 are simply to be harvested without requiring adjustment, the conditioner 3 and conditioner cover 4 are removed.

In the above embodiment, the side frame 23 and the conditioner cover 4 are separated, but they can be integrated, or they can be attached to the safety frame 18 separately.

The tines 25 may be a pair of tines 25 that are welded together at the Y-shaped overlapping portion to integrate them, or may be simply rod-shaped. Also, the tine 25 is the buffer material 3
It may also be pivoted by a pivot pin without using any parts such as 4 or the like.

The grass collecting drum 13 may be provided on rotating disks 10 at both inner and outer ends as shown in FIG. The number of rotating disks 10 is not limited to four,
An appropriate number may be provided depending on the cutting width. However, considering the relationship with the grass collection row, it is desirable to have an even number of them and to rotate them two at a time inward.

The present invention utilizes a safety frame located above the reaping section, and the conditioner and conditioner cover are detachably installed on the safety frame, so it is possible to eliminate the need for adjustment without having to make extensive modifications to the conventional mower. Since the conditioner can be attached to the mower and used in conjunction with the conditioner according to the conditions, and there is no need to provide a special mounting frame or the like on the mower side, it is possible to provide an inexpensive and lightweight conditioner. In addition, the conditioner has a tine shaft that is rotatably supported around the horizontal axis and has a large number of tines that apply adjustment effects while raking up the grass as it rotates, so it is also heavy. lightly,
In addition, there is no need for a reel to send the cuttings to the conditioner, it is easy to handle as it can be attached and detached, and it has a simple structure, so even if it is installed using the safety frame of the mower, it is easy to handle. , there is no problem. In addition, the grass cut by the cutting section is raked up by the tines and guided along the conditioner cover to apply a conditioning effect to the grass, so that the range in which the conditioning effect is applied to the grass by the tines is from the lower front side of the conditioner. It spreads over the area from above to the rear side, and therefore, even though it is an adjustment effect with a simple structure of tines, it can apply sufficient adjustment action to the grass, and the grass does not move backward without adjustment. There is no such thing as being released.

[Brief explanation of the drawing]

1 to 9 illustrate one embodiment of the present invention, in which FIG. 1 is a schematic plan view of the whole, FIG. 2 is a cutaway front view of main parts, and FIG. of-
The arrow view, Figure 4 is the − arrow view of Figure 2, Figure 5.
The figure is an enlarged view of the side frame attachment part, Figure 6 is a - arrow view of Figure 5, Figure 7 is a perspective view of the tines,
FIG. 8 is a sectional view of the tine attachment part, FIG. 9 is an enlarged view taken in the direction of the - arrow in FIG. 8, and FIG. 10 is a schematic plan view showing another embodiment. 2...Mower, 3...Conditioner, 4...
... Conditioner cover, 10 ... Rotating disk, 11 ... Grass collection drum, 12 ... Reaping section, 18
... Safety frame, 22 ... Side frame, 2
4...Tine shaft, 25...Tine.

Claims (1)

[Claims] 1. In a mower equipped with a safety frame above the reaping section, in order to apply an adjustment action to the tine shaft, which is rotatably supported around the horizontal axis, while raking up the grass cut by the reaping section when the tine shaft rotates. A conditioner comprising a large number of tines is removably installed so as to be located diagonally above the rear of the cutting section, and a conditioner cover is provided to guide the grass raked up by the tines of this conditioner to the rear side. A mower conditioner characterized by being detachably attached to a safety frame.