JPH0974810A - Stand device of rotary - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to change over for using and not using a stand without using tools or parts and certainly carry out a work in one touch operation by ordinarily installing the stand used for grounding the rotary on the rotary body in the rotary which is removably installed in the rear of a traveling machine body and to house the stand inside a rotary side transmission device when the stand is housed during a tilling work and when using the stand after finishing the work. SOLUTION: This stand device of a rotary is constructed by installing a stand having a grounding part 5 of an L-shaped in side view rotatably supported by a supporting shaft in a rotary cover 9 at far rear portion then a side transmission device arranged on one side of the rotary cover 9, and, to a supporting fitting 6 which supports the supporting shaft, providing a two position stabilizing device which reversely turns the stand around the supporting shaft when the stand is received and stabilizes the stand on the side surface of the rotary cover when the stand is in use and a limiting device which limits the position of the stabilized device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary which is detachably attached to the rear of an agricultural work vehicle through a link device to cultivate an agricultural land, and more particularly to a rotary stand device.

[0002]

2. Description of the Related Art Conventionally, a rotary stand is provided at the rear of the upper part of the rotary, and a tool mounting hole of a tool bar for mounting a tail wheel and a ridge is used to insert and remove a pin to stand. There is already known a rotary stand device in which the stand is detached from the rotary and stored in another position when the stand is not used when cultivating or when installing a working machine.

[0003]

The rotary stand device, which has been known in the prior art, uses the holes for attaching the working machine in the tool bar to attach and detach the stand by attaching and detaching the pins, and the rotary stand apparatus is used for cultivating work or working. Since the stand is removed from the rotary and stored at a different position when the stand is not used when the machine is mounted, problems such as the time and labor required for the mounting and demounting work, the loss of parts, and the storage location of the stand remain.

Therefore, according to the present invention, while the rotary stand device is always provided in the rotary, the stand is not used at the time of plowing work with one touch without using tools and other parts, and the stand is turned and rotated when the work is stopped. And the stand is ready for use.
An object of the present invention is to allow the lateral transmission device to be housed so as to be located inward of the outer end surface thereof and to prevent damage to the peripheral device by abutting against it.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is detachably mounted via a link device of a traveling machine body (1) and the traveling machine body (1).
In the rotary (2) having a rotary cover (9) that covers the cultivating shaft (3a) by driving the cultivating shaft (3a) through a transmission device, one side of the rotary cover (9). A lateral transmission device (3) arranged in
A support shaft (8) provided on the rotary cover (9) at the rear of the lateral transmission (3), and the support shaft (8)
A stand (5) that is rotatably supported in a lateral direction and has an L-shaped ground contact portion, and the stand (5) is turned around the support shaft (8) in an inverted manner, and the side surface of the rotary cover (9) is shown. A two-position stabilizing device (7) for stabilizing the position and a restricting device (6d) for restricting the position of the stabilizing device (7) were provided, and the stand (5) was set to a non-use state when standing on the ground. Also, when the work is stopped, the stand (5) can be stored so as to be located inward of the outer end surface of the lateral transmission (3) at any position when the stand (5) is turned and turned to be in a stand use state. The above problems have been solved.

(Operation) Based on the above construction, when cultivating work from a state in which the work is stopped, the stand (5) is flipped up by hand and turned outward around the support shaft (8). , The rotary cover (9) is housed inward from the outer end face to be in a non-use state, and after the work is completed, the stand (5)
Is manually turned around the support shaft (8) outward to bring the stand (5) into use.

[0007] The reference numerals in parentheses are for comparison with the drawings, but do not limit the configuration of the present invention.

[0008]

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

The rotary 2 is attached by a three-point link attached to the rear of the tractor 1. The power of the tractor 1 passes through the PTO shaft, drives a tiller shaft 3a from a gear case provided at the center of the rotary 2 through a chain case 3 on the left side, and a plurality of tiller shafts 3a are arranged on the tiller shaft 3a. The claw 3b is rotated to cultivate the cultivated land.

On the other hand, a tool bar 4 for mounting a tail wheel and a ridger is rotatably supported by a screw type adjusting device 4a from the gear case toward the rear.

A rotary cover 9 is provided inside the chain case 3 so as to cover the tilling claws 3b, and a side cover 11 is provided on the left and right rear sides of the rotary cover 9 to prevent the tilling soil from scattering laterally. Is provided.

Among the bolts for fixing the chain case 3 to the side surface of the rotary cover 9, the lower rear bolt 1
The bracket 6 is fixed to the side surface of the rotary cover 9 using 0 and a bolt 12 that fixes the side cover 11 to the rear of the rotary cover 9.

The side cover 1 of the bracket 6
As shown in FIGS. 1 and 2, a U-shaped plate 6a is erected on the mounting plate 1 in a slightly oblique manner in a side view, and corresponds to a hole opened in the central portion of the plate 6a and the front thereof. A pin 8 is inserted between the plate 6b and the hole formed in the plate 6b that is erected, and the stand frame 5 sandwiched between the plate 6a and the plate 6b is rotatably supported.

The plate 6a is, as shown in FIG.
In the rear view, the central portion is formed in a mountain-like shape, and the hole for the pin 8 is formed in the central portion formed in the height, and the stand frame 5 is axially supported between the hole and the hole of the plate 6b. A pin 6c is fixed rearward to a central portion of the plate 6a near (on the inside of) the rotary cover 9, and between the fulcrum 5a provided on the lower rear surface of the stand frame 5 and the pin 6c, The tension spring 7 is biased and arranged.

Further, the plate 6a is formed in a U shape having a mountain-shaped central portion, but the bending portions 6d at both upper and lower ends are low, and when the stand frame 5 described later is in use, It is a position regulating device that abuts on the stand frame 5 when it is stored in a non-use state and prevents the stand frame 5 from further falling inward by the urging force of the tension spring 7.

Next, the operation of this embodiment will be described.

When the tractor 1 is mounted with the rotary 2 and the operation is stopped, the rotary 2 is slightly lifted by the link device, and the stand frame 5 is separated from the ground. 5 by flipping it up by hand to make an arc around the pin 8 axis.
It is rotated by 80 degrees and stored outside the rotary cover.

At this time, the tension spring 7 arranged between the fulcrum 5a on the lower rear surface of the stand frame 5 and the pin 6c becomes the longest when it is rotated by approximately 90 degrees, and the urging force becomes the maximum. And exceeds the dead point, and biases the upward rotation of the stand frame 5 in the direction of 90 degrees to 180 degrees.

When the stand frame 5 is rotated 180 degrees, the cross section of the stand frame 5 abuts on the edge of the upper bending portion 6d of the plate 6a so as not to fall further inward against the urging force of the tension spring 7. The position is regulated.

In this state, as shown in FIG. 3, the stand frame 5 is hidden behind the chain case 3 in a front view, and when the tractor 1 moves forward to perform plowing work, the stand frame 5 causes other obstacles. Does not come into contact with objects.

When the tractor 1 is stopped after the plowing work is completed,
Before lowering the rotary 2 to the ground by the link device, contrary to the above operation, the stand frame 5 is manually rotated outward by 180 degrees in an arc shape around the pin 8 axis,
The stand frame 5 is used.

At this time, the tension spring 7 arranged between the fulcrum 5a on the lower rear surface of the stand frame 5 and the pin 6c becomes the longest when it is rotated by approximately 90 degrees, and the urging force becomes the maximum. The dead center is exceeded and the downward rotation of the stand frame 5 is urged in the direction from 90 degrees to 180 degrees.

When the stand frame 5 is rotated 180 degrees, the cross section of the stand frame 5 contacts the edge of the lower bending portion 6d of the plate 6a and resists the urging force of the tension spring 7 so as not to fall further inward. The position is regulated.

When the rotary device 2 is gently lowered onto the ground by the link device as it is, the stand frame 5 comes into contact with the ground and the rotary device 2 can maintain a stable posture. In that state, if the rotary 2 is removed from the link device, the rotary 2
As shown in FIG. 4, it is possible to maintain a stable posture by grounding at the two points of the plowing claw 3b and the stand frame 5.

Further, as shown in FIGS. 5, 6 and 7,
The tool bar device adjusted by the adjusting device 4a includes a first support 16 that is rotatable rearward from a gear case, and a second support 17 that is fitted into the first support 16 and is expandable and contractable. A tool bar 18 is formed by a square pipe orthogonal to the rear end of the support 17, and a stand 20 formed of a two-fold type square pipe is fitted and inserted inside the tool bar 18. You can

When used as a stand, pull out the stand 20 from the tool bar 18 and, as shown in FIG.
0a is bent around the pin 21 so that it stands vertically,
The stand 20 is used.

At this time, as shown in FIGS. 6 and 7, the refracting / rotating portion is connected to the elongated hole 20b by the pin 21, and when it is refracted and rotated, it rotates at the top of the elongated hole 20b and stands up as a stand. And it is designed to be supported at the bottom. Also,
In this state, the inner surface of the top of the tip portion 20a is
It abuts on the refraction side end of c and, together with the pin 21, the tip 20a.
Is held in a vertical position.

At the time of tilling work, as shown in FIG. 7, the tip portion 20a is rotated around the pin 21 to move the horizontal portion 20.
c, and is housed inside the toolbar 18 from the inner end surface of the horizontal portion 20c.
The pin is penetrated to 0d to prevent it from coming off.

In this system, in addition to the above-described stand device, the stand 20 is adjusted by the adjusting device 4a in a stand upright state.
Since the position of the tip end portion 20a of the stand can be finely adjusted, a stable stand-up state can always be obtained according to the hardness of the ground contact surface.

Further, as shown in FIG. 8, FIG. 9, FIG. 10 and FIG. 11, in the stand device, the second support 17 which fits into the inner diameter of the first support 16 is formed by a double-folded pipe. A male joint 22a and a female joint 23a are provided in the bending and rotating portions of the base portion 22 and the distal end portion 23, respectively, and the pin hole 22a of the 22a is provided.
By connecting the L-shaped keyholes 23b provided in b and 23a with the pin 24, and fixing the rectangular pipe orthogonal to the tip of the tip end 23 to the left and right for a long time to form the toolbar 18,
As shown in FIGS. 9 and 10, the base portion 22 and the tip portion 23 are used as a stand at the time of bending, and as a tool bar 18 when extended linearly and housed inside the first support 16, as a stand and a tool bar 18. It will be possible.

The bent portion of the keyhole 23b serves as a stopper for the pin 24 during bending, and the male joint 22a during bending.
The lower surface of the stand and the upper edge of the tip portion 23 come into contact with each other so that the tip portion 23 as a stand can be held substantially vertically.

In this system as well, in addition to the above-described stand device, the position of the tool bar 18 of the tip portion 23 can be finely adjusted by the adjusting device 4a in the stand standing state, so that the stand standing state is always stable depending on the hardness of the ground surface. Is obtained.

[0033]

Industrial Applicability The present invention is a rotary device which is detachably mounted through a link device of a traveling machine body, and which drives power from the traveling machine body through a transmission device to drive a tilling shaft to cover the tilling shaft. In a rotary having a cover, a lateral transmission device disposed on one side of the rotary cover, a support shaft provided on a rotary cover rearward of the lateral transmission device, and rotatably supported by the support shaft. A stand having an L-shaped ground contact portion when viewed from the side, a two-position stabilizer that rotates the stand around the support shaft by an inversion degree, and stabilizes the rotary cover at the side position, and regulates the position of the stabilizer. The stand is provided with a restricting device, and the stand is in a non-use state in which the grounding part of the stand is located above the support shaft during cultivating work, and when the work is stopped, the grounding part of the stand supports the grounding part of the stand. At any position where the stand used state positioned below the axis, since the enable storage to sit inward than the outer end surface of the side gear,
Switching between the use status and storage status of the stand does not require the use of tools or parts and can be done with one touch, and it does not interfere with other operations during use or storage, and is always attached to the rotary body. There is no risk of loss.

[Brief description of drawings]

FIG. 1 is a side view of a stand frame.

FIG. 2 is a rear view of the stand frame.

FIG. 3 is a side view of the rotary when the stand frame is not used during the plowing work.

FIG. 4 is a side view of the rotary when the stand frame is used after the work is completed.

FIG. 5 is a side view of a rotary equipped with a stand frame of another embodiment.

FIG. 6 is a perspective view when using a stand frame of another embodiment.

FIG. 7 is a perspective view for accommodating a stand frame according to another embodiment.

FIG. 8 is a side view of a rotary equipped with a stand frame of another embodiment.

FIG. 9 is a perspective view of the stand frame of FIG. 8 when used.

FIG. 10 is a perspective view of a joint portion of FIG. 8 embodiment.

FIG. 11 is an exploded perspective view of a joint portion of the embodiment of FIG.

[Explanation of symbols]

 1 tractor 2 rotary 3 chain case 4 toolbar 5 stand frame 6 bracket 7 tension spring 11 side cover

Claims (1)

[Claims] 1. A rotary having a rotary cover which is detachably mounted via a link device of a traveling machine body and which drives the cultivating shaft with power from the traveling machine body via a transmission device to cover the cultivating shaft. In a side view L rotatably supported on the support shaft, a side shaft arranged on one side of the rotary cover, a support shaft provided on the rotary cover at a rear portion of the side gear. A stand having a character-shaped grounding portion, a two-position stabilizer that reversely rotates the stand around the support shaft and stabilizes the rotary cover at a side position, and a restricting device that restricts the position of the stabilizer, The stand is in a non-use state in which the grounding part of the stand is located above the support shaft during cultivating work, and when the work is stopped, the grounding part of the stand is below the support shaft. A rotary stand device that can be stored so that it is located inward of the outer end surface of the lateral transmission device at any position in which the stand is in a usable state.