JPS59118004A - Cultivator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tiller for tilling and furrowing soil.

1 ~ Italian Patent No. 1.787.434 (U.S. Patent No.

3.773,112), a manual operation having a pair of parallel shafts arranged one behind the other perpendicular to the tilling direction, driven by a motor mounted above, and supporting a howing implement. The intermediate tiller used is known. A transmission gear is interposed between these shafts and the motor. However, such known tillers have several drawbacks, as explained below. The diameter of the tiller that it can support is limited, which precludes its use on soils of various conditions and properties. Furthermore, the plowing depth was limited by the contact of the large transmission gear with the soil.

Therefore, the purpose of this invention is to deeply understand various soils.
To provide a tiller capable of cultivating crops using a large-diameter tiller.

The above objectives are, on the one hand, to connect each drive shaft to a transmission block (transmission gear) operatively connected to the motor;
These transmission blocks are rotatably provided so that the distance between the drive shafts can be adjusted when viewed from the tilling direction. By being able to adjust the spacing between the drive shafts in this way, it is possible to use tillers of various diameters to suit the respective soil conditions. If the soil to be cultivated is hard, e.g. contains stones or wood chips, 1
The distance between the drive shafts should be made relatively large to prevent these hard objects from becoming blocked between the drive shafts, between the hair rings, and between the tillers, and to prevent disruption of cultivation work due to blockage. It has become. In addition, highly mixed, fine, and friable soils are sometimes unfavorable from a pedological standpoint, and in such cases, the spacing between the drive shafts is also set relatively wide. On the other hand, if the soil to be cultivated is covered with weeds, 1. By narrowing the distance between the drive shirt and the drive shirt, these weeds can be prevented from getting entangled with the tiller, and the weeds can be crushed and mixed with the soil. In this way, there is no need to remove weeds from between the tillers, making it possible to cultivate efficiently.

Furthermore, the above object can be achieved in that the hair ring of the drive shaft, and thus the drive shaft, is made transversely displaceable relative to each other when viewed from the tilling direction. Thus,
In the region of the transmission gear corresponding to one drive shaft, the other transmission gear acts on the uncultivated soil area, so that the depth of cultivation is not limited by the transmission gear that falls on the uncultivated soil area below the transmission gear. Thus, the entire area under the tiller is plowed in one plowing operation and there is no need to plow this area repeatedly. As a result, it is convenient when forming ridges. By making the drive shaft transversely movable as previously described, multiple tillers can be mounted to rub against each other, allowing larger diameter tillers to be used without changing their respective hair rings.

The tiller according to the invention makes it possible to use mutually symmetrical low-cost components and is adaptable to different soil conditions and tillers.

Furthermore, the tiller of the embodiment has the following superior effects. That is, the transmission block can be connected to a drive motor and to one or two drive shafts, and the drive shafts 1 to 1 can be arranged parallel to each other, making it particularly suitable for large, high-power tillers. . while a pair of driving shirts [~ may be provided on a common straight line;
In this case, it is lightweight, suitable for small-sized tillers, and is inexpensive.

An extension member may extend from the end of the drive shaft,
The spacing between the hair rings of the drive shaft can easily be set to half or an integral multiple of the length of the extension member. This result 1
．． Even when the distance between the drive shirts l~ is narrow, a plurality of tillers can be arranged alternately without coming into contact with or interfering with each other. If the drive shafts are rotated in opposite directions, the driving force can be varied to control plowing depth, plowing speed as well as plowing intensity. Since the drive wheel requires only a small amount of propulsive force to advance the tiller in the direction of tillage, manual tillers are designed so that the propulsive force, or movement force, of the tiller acting in the direction of tillage cancels each other out. obtain. In this way, it is possible to obtain a tiller that is lightweight, inexpensive, and has good operability.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A tiller according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

The tiller 1 shown in FIG. 1 is designed as a motor hoe, cutter, vertical tiller, etc. The tiller 1 comprises a pair of parallel first drive shafts 2.3 on which a tiller 8 is mounted. This tiller 8 consists of a star-shaped or circular chopper, a cutter, or a roll. Said drive shaft 2.3 is connected to a transmission block (gear train) 4.5 which, via a second drive shaft 10,
1 drive motor 7. This motor is mounted in a housing 12 above the drive shaft 2.3.
is installed on. The transmission block 4.5 has a pulley,
It can also be constructed by a V-belt with sprockets or gears. A cover plate 13 is provided above the tiller 8 in order to protect the farmer and the drive motor from protruding rocks and lumps of soil. The tiller 1 is steered by a steering rod (handlebar) 14 connected to the housing 12, and the drive motor 7 as well as the transmission block 4.5 are controlled by control means (not shown), such as a brake, a throttle lever, a clutch, etc. , controlled. This tiller 1 can be moved back and forth as shown by arrows.

FIG. 2 shows the tiller with drive motor 1, cover plate 13 and handle bar 14 removed. The first drive shafts 2, 3, which are arranged parallel to each other, each support a plurality of tillers 8, and each of the drive shafts 2, 3 has an extension member arranged to connect the ends thereof by a lever. 1
1, each extending laterally, and as a result, it is set so that the number of tilling implements that can be used can be increased. The first drive shaft 2.3 is connected to the transmission block 4
．． 5, and the spacing C of the respective hair rings of the transmission blocks 4, 5 as well as the first drive shaft 2.3 can be displaced laterally with respect to each other. If the tiller 8 has a larger diameter than that shown in FIG.
In order to provide the tiller 8 mounted on one drive shaft 3 to be located between the tillers 8 mounted on the other drive shaft 2, the distance C is determined by the length of the extension member. It is necessary to set it to half or an integral multiple of .

Both drive shafts 2°3 are connected via a transmission block 4.5.
1 drive shafts 10 are shown in the hatched area in the center. FIG.
FIG. 4 is a side view of one or two second drive shafts 10 with transmission blocks 4 and 5 attached thereto. drive shaft 10
[Thus, in order to make the transmission block rotatable around a defined axis of rotation, the distance A between the two drive shafts 2.3 and thus the distance between the two brackets 8 can be adjusted. In this way, the spacing of the drive shafts 2.3 can be adapted to the dimensions of the tiller 8 and to the condition and quality of the soil to be tilled. Adjustment of the transmission blocks 4, 5, and thus between one drive shaft 2.3, can be effected by positive or frictional engagement, such as a screw connection, a spring member, a rubber member. The range of rotation of at least one transmission block 4.5 for adjusting the distance A around the drive shaft 10 defining said axis of rotation is indicated by the arrow 9.

The tiller shown in FIG. 4 is similar to the cultivator shown in FIG. 4 except that each transmission block 4.5 is rotatably mounted on one of a pair of drive shafts 10 arranged parallel to each other at a distance B. This is the same as shown in Figure 3.

Adjustment of the distance A between the drive shafts 2 and 3 is achieved by rotating the drive shafts 4 and 5, similar to that shown in FIG. However, in this case the distance B also needs to be taken into account during the adjustment.

The tiller shown in FIG. 5 is manually operated like the one shown in FIG. 1 and has one or more wheels 15 driven by a motor 7. The tiller shown in FIG. The distance ME from a straight line passing through the centers of the drive shafts 2, 3 to the center of the wheel 15 can be varied in the same way as shown in FIGS. 3 and 4. Thus, the depth of tillage by this tiller is adjustable.

According to the tiller according to the invention described above, the first
The direction of rotation of the drive shaft 2.3 can be varied as desired. For example, both drive shafts 2.3 can be rotated in the same direction or in different directions. , when the drive shafts are rotated in opposite directions, the driving forces of the tiller in the soil are centered on each other. Therefore, the tiller can be advanced in the tilling direction by applying a relatively small propulsion force to the wheels. Therefore, the tiller can be made lighter and less expensive without compromising functionality and operability.

As shown in Figures 1 and 5, this tiller can be driven manually, and can also be driven with one or two axes.
Can also be used as an attachment for an axle tractor.

[Brief explanation of the drawing]

Fig. 1 is a side view of a manually operated tiller according to an embodiment of the present invention, Fig. 2 is a side view of a tiller in which hair rings are displaceable with respect to each other in the lateral direction, and Fig. 3 is a side view of a tiller according to an embodiment of the present invention. FIG. 4 is a partial view showing a modified example of the transmission block, and FIG. 5 is a partial view showing a pair of transmission blocks and one driving shaft of the machine, and FIG. It is a side view showing a tiller. 1... Tiller, 2.3... First drive shaft,
4゜5 Transmission block, 7...Motor, 8...Tilling implement, 15...Wheel, Patent Attorney Takehiko Tsuzue

Claims (1)

[Claims] 1. A pair of first members extending in a direction perpendicular to the tilling direction, driven by a motor, and supporting a tiller;
In a tiller having drive shafts, each drive shaft is rotatably coupled by a transmission block operatively connected to the motor, the transmission blocks being able to vary the spacing between the two drive shafts when viewed from the tilling direction. A tiller characterized by being able to rotate relative to each other. 2. The tiller according to claim 1, wherein the transmission block has a hair ring that supports the first drive shaft and is spaced apart from each other in the tilling direction. 3. The first drive shaft is driven by one or two second drive shafts connected by a motor through a transmission block, and the number of the second drive shafts is two. Claims 1 or 2 are arranged in a straight line with each other.
In the tiller 4 described in Section 1, the first drive shaft is connected to one or two second drive shafts connected by a motor via a transmission block. driven by a drive shaft, said second
3. The April pooping machine according to claim 1 or 2, wherein when there are two driving shirts 1 to 1, they are arranged so as to be spaced apart from each other at a constant interval. 5. The first six drive shafts are provided with extension members, and the spacing between the hair rings for the first drive shafts is set to half or 4° to 5 times the length of the extension member. A tiller according to any one of claims 2 to 4, characterized in that: 6. The tiller according to any one of claims 1 to 5, wherein the rotation direction of at least one of the first driving shafts can be changed. 7. 7. A tiller according to any one of claims 1 to 6, characterized in that at least one drive wheel is driven by the motor. 8. Claim 7, characterized in that the distance between the center of said one drive wheel and a straight line passing through the centers of said first drive shafts is set to be variable. The tiller described in. 9. The tiller 10 according to any one of claims 1 to 7, wherein the two drive shafts are rotated in opposite directions (in the tilling direction). In a tiller having a pair of first drive shafts extending in one orthogonal direction, driven by a motor, and supporting a tiller shell, the hair rings of the two drive shafts are spaced apart from each other in the tilling direction. 11. A tiller, characterized in that the hair rings are provided in respective transmission blocks, and both transmission blocks are provided so as to be rotatable with respect to each other. The tiller according to claim 10. 12. The first drive shaft is connected to one or two second drive shafts connected by a motor via a transmission block.
12. A tiller according to claim 11, characterized in that said second drive shafts are arranged in a straight line with each other if there are two drive shafts. 13. The first drive shaft is driven by one or two second drive shafts connected by a motor through a transmission block, and when there are two second drive shafts, the two drive shafts are fixed to each other. 12. The tiller according to claim 11, wherein the tiller is arranged at intervals. 14. The first drive shaft is provided with an extension member, and the distance between the hair rings for the first drive shaft is half or 4.5 times the length of the extension member. A tiller according to any one of claims 11 to 13, characterized in that: 15. The tiller according to any one of claims 10 to 14, characterized in that the direction of rotation of at least one of the first drive shafts can be changed. 16. A tiller according to any one of claims 10 to 15, characterized in that at least one drive wheel is driven once by the motor. 17. The distance between the center of the drive wheel and a straight line passing through the centers of the first drive shafts is set to be variable. 18. A tiller according to claims 10 to 17, characterized in that the two drive shafts of the tiller 18 are rotated in opposite directions.