JPH08317703A - Receiving device for tail wheel of rotary - Google Patents

Abstract

PURPOSE: To enable to carry out a tilling work with mounting a tail wheel on a rotary and bring the tail wheel in an operating state when traveling on a road after the tilling work is over in a tiling device having the integrated rotary in a machine body and installed with the tail wheel for traveling on a road or a resistant rod for adjusting a tilling depth. CONSTITUTION: A supporting device for supporting a tail wheel 16 and a resistant rod 14 and a receiving device are installed on the upper rear part of a rotary cover, the resistant rod 14 is received in the receiving device and the tail wheel 16 is supported on the supporting device when traveling on a road, the tail wheel 16 is extended and received in the receiving device and the resistant rod 14 is supported by the supporting device during tilling work. Further, the support of the supporting device of the tail wheel 16 is supported to be swingable around a swing shaft and fixed and capable of being received over the rotary cover in the received state by swinging around the swing shaft.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cultivator in which a rotary is integrally incorporated in a machine body, and more specifically, when a tail wheel for traveling on the road or a tail sled for adjusting the working depth is not used when mounted behind the rotary. Regarding storage device.

[0002]

2. Description of the Related Art Conventionally, a cultivator of a simple type in which a rotary is integrally incorporated in a machine body is known, in particular, a cultivator without a tail wheel for road traveling. Further, even a cultivator equipped with a road traveling tail wheel as special equipment is already known, in which a tail depth adjusting tail sled is removed and a road traveling tail wheel is mounted at the position.

[0003]

Conventionally known cultivators that do not have a tail wheel for road traveling when traveling on a road as already known are operated so that the cultivating blade does not always contact the ground during traveling on the road. Since the driver runs while supporting the steering wheel, the driver is often tired. In addition, even if a road running tail wheel is prepared as special equipment, when removing the plowing depth adjusting tail sled and replacing it with the road running tail wheel, take the road running tail wheel to another place each time. It was often inconvenient because the tail sled, which had been moved or removed and was necessary for plowing work, had to be transported to another place.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and includes a rotary body (4) attached to a body (8).
In the cultivator (1), which is integrally incorporated with and includes a tail wheel (16) for traveling on the road or a tail sled (15) for adjusting the working depth, a tail wheel (16) that can extend downward when traveling on the road, Tail sled (1 that can be adjusted vertically by expanding and contracting during plowing work)
5) and a support device (1) for supporting the tail wheel (16) and the tail sled (15) at the upper rear of the rotary cover (18).
7), the tail wheel (16) and the tail sled (15) to the support device (17), the tail wheel (16) and the tail sled (1)
5) The storage device (17) for fixing the support device (17) to the support device (17).
b) and, and when traveling on the road, the tail sled (15)
Is fixed to the storage device (17b) and the tail wheel (16) is supported by the support device (17) to serve as a traveling tail wheel, and the tail wheel (16) is used as the storage device (17b) during the plowing work. The tail wheel (16) or the tail sled (15) is fixed to the rear portion of the rotary cover (18) so that the tail sled (15) is fixed and supported by the supporting device (17) to be a tail sled for adjusting the working depth. It becomes storable, and the tail wheel (16) support of another support device (19) is rotatably supported and fixed around a rotation shaft (26), and at the time of storage, the rotation shaft (16) is fixed. Rotating around (26) and sliding forward, rotary cover (18)
Can be stored in the upper part of the
Support the tail wheel (16) of 9) to the oblique axis (2
8) is rotatably supported and fixed to the rotary cover (18) so that it can be housed in the upper portion of the rotary cover (18) by being rotated around the oblique shaft (28) during storage. Solved.

[0005]

Based on the above structure, the tail sled (1
5) is fixed to the storage device (17b) and the tail wheel (16)
Is supported by the supporting device (17) to form a traveling tail wheel,
At the time of tilling work, the tail wheel (16) is stored in the storage device (17b).
The tail sled (15) is fixed to the support sled (15) by the supporting device (17) to serve as a tail sled for adjusting the working depth.

At this time, the unused tail wheel (16) or tail sled (15) is fixed to the storage device (17b) provided at the upper rear of the rotary cover (18).
It is always with the cultivator (1), and it is not necessary to go to another place or put in place each time the work is switched, and the tail wheel (16) or the tail sled (15) can be easily replaced. .

Further, since the tail wheel shaft is rotatably supported and fixed about the turning shaft (26) provided on another supporting device (19), the tail wheel ( 16)
Of the tail wheel shaft to reduce the tail wheel shaft to raise the tail wheel (16) upward, and then rotate around the rotation shaft (26),
It can be slid forward and fixed to the storage position provided on the upper part of the rotary cover (18). Further, the tail wheel support of another support device (29) is rotatably supported and fixed to the oblique shaft (28) with respect to the horizontal direction,
At the time of storage, it is also possible to rotate around the oblique shaft (28) and store it in the upper part of the rotary cover (18) with the space with the upper handle (12) as a locus.

The reference numerals in parentheses are for the purpose of contrasting with the drawings, but do not limit the structure of the present invention.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

The cultivator 1 transmits the power of the engine 2 to the traveling wheels 3 on the one hand and drives the cultivating shaft 5 of the rear rotary 4 on the other hand to drive the plurality of cultivating pawls 6 mounted on the cultivating shaft 5. It is a cultivator that rotates to perform light work such as maintenance work.

The cultivator 1 is shown in FIG. As shown in (b), the body 8 and the rotary 4 are integrally formed, and a handle 12 having a gear shift operation lever 9 for changing the traveling speed, a main clutch lever 10, and a side clutch lever 11 is provided at the rear portion of the body 8. , Are arranged so as to extend diagonally rearward.

As shown in FIG. 1 (a), the handle 12 is fixed to the machine body 8 by a single pipe 8a, but is divided into left and right parts at an intermediate part and is rotated around a rotating shaft 8b. It is rotatably fixed in several stages, and the height of the rear end can be adjusted according to the posture of the operator.

The handle 12 is composed of a single loop-shaped pipe that widens rearward. An arch-type retractable main clutch lever 10 is provided immediately before the rear end 12a, and the rear end is provided. When the main clutch lever 10 is tilted in the direction of the portion 12a and grasped, the main clutch is engaged.

With the above structure, the cultivator 1 of this type has sufficient space below the handle 12, above the rotary 4, and at the feet of the operator, as shown in FIG. 1 (b). .

Since the rotary 4 of this type is mainly intended for field management work, it is different from the tiller for paddy fields.
A resistance rod 14 having a resistance plate 14a at the tip is mounted vertically adjustable immediately after the tiller 6 so that the tiller 1 does not fly forward due to the tilling reaction force of the tiller 6. In order to prevent the resistance plate 14a at the tip of the tool from biting into the soil and stabilize the plowing depth, a tail sled 15 having a stabilizer plate 15a at the tip is mounted immediately after the resistance rod 14 so as to be adjustable up and down. Perform plowing work.

On the other hand, when traveling on the road before and after the plowing work, the resistance rod 14 and the plowing claw 6 cannot be directly grounded on the road, so that the operator holds the handle 12 high and holds the rotary 4 in place. Although it floated in the air and moved, instead of the resistance rod 14, it moves backward as shown in FIG.
As shown in (b) and (c), the tail wheel 16 equipped with the tire 16a is mounted, and the traveling wheels 3 of the vehicle body 8 during traveling on the road.
When the tire 16a is grounded and the vehicle travels, driving becomes easy.

Since the support shafts of the resistance rod 14 and the tail wheel 16 are formed to have the same sectional shape, when they are not used, they are shown in FIG.
As shown in (c) and FIG. 2 (b), the resistance rod 14 or the tail wheel 16 has a shape as shown in FIGS. 3 (a) and 3 (b), which is provided on the rear portion of the upper cover 18 of the rotary 4. The bracket 17 is horizontally inserted into the rear hole 17b and is fixed by the rear fixing knob 17a. Therefore, it is always with the cultivator 1, and when the work is switched, it is taken to another place each time or placed. The resistance rod 14 and the tail wheel 16 can be easily exchanged without having to go to each other.

Further, the support shaft of the tail wheel 16 is formed in a pipe structure, and is provided on the rear portion of the upper cover 18 of the rotary 4 and has a support bracket having a shape as shown in FIGS. 4 (a) and 4 (b). A support pipe 20 sandwiched at the rear portion of 19 is fitted and supported, and a pin 21 is penetrated from the side to maintain an appropriate height.

As shown in FIG. 5, the support pipe 20 is provided with a bracket 20a toward the front, and the pipe 20b provided at the front portion of the bracket 20a is penetrated by a bolt 26 together with the support bracket 19. The ends are fixed by lock nuts 26a. Therefore, when the support pipe 20 loosens the lock nut 26a, the bolt 26
The support bracket 19 is extended rearward, and as described above, the support bracket 19 and the support pipe 20 are passed through the support bracket 19 and the pin 21 is inserted from the side to rotate the support bracket 19. Is prevented and fixed.

Further, in the middle portion of the support bracket 19,
The tail sled 15 is vertically adjustable in the central portion and is a guide portion 19a.
Is provided, and as shown in FIG. 4 (b) behind it,
An inverted L-shaped hole 22 is opened in a side view, and a pin 23 is penetrated to engage with a notch 15b formed on the back surface of the tail sled 15 to hold the tail sled 15 at an appropriate height.

The pin 22 is always urged by the spring 24 in the direction in which it is in close contact with the notch 15b of the tail sled 15 at the horizontal portion of the hole 22, and when the height of the tail sled 15 is adjusted,
The pin 22 is moved rearward against the urging force of the spring 24, and is held in the vertical portion of the hole 22 to hold the pin 22 and the notch 15b.
When the pin 22 is moved to the horizontal portion of the hole 22 after the tail sled 15 is disengaged and the tail sled 15 is moved to the required position, another notch 15b at the required position is generated by the urging force of the spring 24.
Is engaged with.

When the roadside is finished and the field is cultivated, the tail wheel 16 is not used. Therefore, the pin 21 penetrating from the side surface is removed, and the tail wheel 16 is moved to the uppermost position in the support pipe 20. Slide the pin 21 through the lower pin hole 25, loosen the lock nut 26a, and
When it is rotated forward about 0 around the bolt 26 provided on the support bracket 19, it is stored in the space just below the upper cover 18 of the rotary 4 and the handle 12 without any trouble in the tilling work. The Rukoto.

In this way, since the cultivating work can be performed while the tail wheel 16 is mounted on the upper part of the upper cover 18 of the rotary 4, the tail wheel 16 can be installed at another place even when traveling on the road after the cultivating work is completed. It is possible to easily set the tail wheel 16 in the attached state by performing the reverse operation to the above without going to.

Further, an inclined shaft 28 with respect to the horizontal is provided at the rear portion of another support bracket 29 having a shape as shown in FIGS. 7A and 7B, and the upper end of the tail wheel 16 is attached to the inclined shaft 28. It is fitted and supported, and the lower part is penetrated by the support plate 30, and the pin 2
When the tail wheel 16 is housed in the upper part of the upper cover 18 of the rotary 4 by being locked with 1, the pin 21 is pulled out and the tail wheel 16 is swiveled around the tilt axis 28.
As shown in (a), (b) and (c), it can be moved as a locus in the space below the handle 12 and stored in the upper part of the upper cover 18.

If the main clutch lever 10 is formed in a simple arched shape, the rear end portion 1 of the handlebar is held by both hands.
When the main clutch lever 10 is tilted with the right hand while gripping 2a and squeezing together with the rear end 12a of the handle, the left hand may be jammed. Therefore, as shown in FIG. If the turning radius is made smaller and offset is formed, when the main clutch lever 10 is tilted with the right hand, the left hand can be protected as shown in FIG. 9B.

[0026]

INDUSTRIAL APPLICABILITY The present invention relates to a cultivator having a rotary body integrally integrated with a vehicle body and provided with a tail wheel for traveling on the road or a tail sled for adjusting the plowing depth, and a tail wheel capable of extending downward when traveling on the road, A tail sled which can be vertically expanded and contracted during plowing work to adjust the working depth, a support device for supporting the tail wheel and the tail sled behind the upper part of the rotary cover, and a storage device for fixing the tail wheel and the tail sled to the support device. When the vehicle is traveling on the road, the tail sled is fixed to the storage device and the tail wheel is supported by the supporting device to form a traveling tail wheel, and the tail wheel is fixed to the storage device when cultivating. Since the tail sled is supported by the supporting device and becomes a tail sled for adjusting the working depth, the tail wheel or the tail sled can be housed behind the upper part of the rotary cover, so that the tail wheel is covered by the upper cover of the rotary. Plowing work can be done with the top of the Kill as now, after tilling the end,
Even when traveling on the road, the tail wheel can be easily attached without having to go to another place to get the tail wheel.

[Brief description of drawings]

FIG. 1 is a plan view of (a) a cultivator during traveling on a road.
(B) It is a side view of a cultivator. (C) It is a rear view of the rotary.

FIG. 2 is a side view of (a) rotary at the time of plowing work.
(B) It is a rear view of a rotary.

FIG. 3A is a plan view of a support bracket. (B)
It is a side view of a support bracket.

FIG. 4A is a plan view of a support bracket. (B)
It is a side view of a support bracket.

FIG. 5 is a side view of a support pipe.

FIG. 6 is an assembly plan view of a support bracket support pipe.

FIG. 7 (a) is a plan view of a support bracket. (B)
It is a side view of a support bracket.

FIG. 8 is a plan view of (a) a cultivator during traveling on a road using a support bracket having an inclined axis. (B) It is a side view of a cultivator. (C) It is a rear view of a tail wheel.

FIG. 9A is a perspective view of a main clutch lever.
(B) It is a perspective view when the main clutch lever is tilted.

[Explanation of symbols]

 1 Tiller 4 Rotary 10 Main Clutch Lever 12 Handle 14 Resistance Rod 15 Tail 16 Tailor 17 Bracket 19 Support Bracket 20 Support Pipe 26 Bolt 28 Tilt Shaft 29 Support Bracket

Claims (3)

[Claims] 1. A cultivator having a rotary body integrally integrated with a vehicle body and provided with a tail wheel for traveling on the road or a tail sled for adjusting a plowing depth, wherein a tail wheel that can be extended downward when traveling on the road and a vertical wheel for plowing work. A tail sled that can be expanded and contracted to adjust the working depth, a support device that supports the tail wheel and the tail sled behind the upper part of the rotary cover, and a storage device that fixes the tail wheel and the tail sled to the support device. When traveling on the road, the tail sled is fixed to the storage device and the tail wheel is supported by the supporting device to form a traveling tail wheel.When the plowing work is performed, the tail wheel is fixed to the storage device and the tail sled is set as described above. A rotary tail wheel storage device that allows a tail wheel or tail sled to be stored in the upper rear part of a rotary cover so that the tail wheel can be supported by a support device to serve as a tail sled for adjusting the working depth. 2. A tail wheel support of the support device is rotatably supported and fixed around a rotation shaft, and when stored, the tail wheel support is rotated around the rotation shaft and slid forward to rotate. The rotary tail wheel storage device according to claim 1, which can be stored in an upper portion of the cover. 3. The tail wheel support of the support device is rotatably supported and fixed on an oblique shaft with respect to the horizontal direction, and when stored,
2. The rotary tail wheel storage device according to claim 1, wherein the tail wheel storage device is rotatable around an oblique axis and can be stored in an upper portion of the rotary cover.