JPH0454730Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application This invention relates to a rotary part working machine attachment device for attaching a working machine to a mobile agricultural machine to which a rotary working machine is connected.

Conventional technology Conventionally, a rotary work machine and a work machine such as a tiller are connected to the rear of the body of a mobile agricultural machine as shown in Figs. 3 and 4, and the rotary work machine is used to plow the field and the work machine is used to perform soil cultivation work. It is common practice to perform these steps one after another.

Here, a frame 3 extending rearward of a rotary work machine 2 is connected to the body 1 of the mobile agricultural machine, and a through hole 4 penetrating vertically in the rear end of the frame 3 is connected to the body 1 of the mobile agricultural machine.
A mounting bracket 5 having a diameter is fixed. and,
A support rod 7 of a soil cultivator 6 is inserted into the through hole 4, and the support rod 7 is fastened to the mounting bracket 5 with bolts 8.

Problems to be Solved by the Invention First, the horizontal cross-sectional area of the through hole 4 is set to be only slightly larger than the horizontal cross-sectional area of the support rod 7. Therefore, when inserting the support rod 7 into the through hole 4, the soil cultivator 6 must be rocked back and forth, which is very time-consuming.

In addition, the soil cultivator 6 is used by adjusting its position in the vertical direction depending on the working conditions, etc., and for this adjustment, the total length Y of the support rod 7 and the support rod 7 from the ground are adjusted.
The dimension Y' to the upper end is generally set larger than the dimension X from the ground to the lower end of the through hole 4 when the rotary work machine 2 is grounded. Therefore, the support rod 7 is inserted into the through hole 4.
When inserting the rotary work machine 2 into the machine, the handle 9 of the mobile agricultural machine must be pushed upward, the machine body 1 must be rotated forward about the axle 10, and the rotary work machine 2 must be moved away from the ground. However, when the machine body 1 and the rotary work machine 2 are connected, the center of gravity is at the axle 10.
If the operator is located farther back, if the operator releases the handle 9, the machine body 1 will rotate around the axle 10 in a backward position, and the rotary work machine 2 will return to the grounded state. Therefore, when installing the soil cultivator 6, an assistant is required to support the machine body 1 in a forward tilted state, and it is difficult for one person to attach the cultivator 6.

On the other hand, even if the center of gravity is located in front of the axle 10 when the machine body 1 and the rotary work machine 2 are connected, the center of gravity may be moved to the rear of the axle 10 by connecting the soil cultivator 6. In that case, the machine body 1 rotates backward around the axle 10, causing the rotary working machine 2 and the soil reclamation machine 6 to suddenly fall, which is dangerous.

Means for Solving the Problem A support part that extends to the rear of the rotary work machine is provided at the rear of the body of a mobile agricultural machine to which a rotary work machine is connected, and the rear end of the support part extends approximately in the left-right direction toward the rear. A receiving portion is provided that expands into a dogleg shape and abuts at least two locations on the side surface of the support rod of the work machine. A first support that comes into contact with another part of the side surface of the support rod is rotatably connected to one end of the receiving part in the front and rear direction, and is removably engaged with the first support at the other end of the receiving part. Connect the second support.

Effect: The engagement state between the first support body and the second support body is released, the work machine is moved horizontally from the rear to the front, and the work machine is supported in the receiving part that is opened rearward. Touch the sides of the rod. Then, the first support is rotated so as to come into contact with the other side of the support rod, and the second support and the first support are further engaged,
The support rod is clamped and fixed by these receiving portions, the first support body, and the second support body.

Embodiment An embodiment of this invention will be described based on FIGS. 1 and 2. Note that the same parts as those described in FIGS. 3 and 4 are indicated by the same reference numerals, and the description thereof will be omitted. A frame 3, which is a supporting part extending rearward of the rotary work machine 2, is connected to the rear of the body 1 of the mobile agricultural machine, and the rear end of the frame 3 has a frame 3 that extends rearward in the left and right direction. A front support plate 11, which is a letter-shaped receiving part, is fixed. A rear support plate 12, which is a first support body, is connected to one end of the front support plate 11 by a support shaft 13 so as to be rotatable in the front and rear directions. Further, a fixing metal fitting 14 having a substantially U-shaped cross section and serving as a second support is rotatably connected to the other end of the front support plate 11 by a support shaft 15 . Furthermore, a set bolt 16 is attached to the fixing metal fitting 14, which presses the tip of the rear support plate 12 to lock the engaged state when the fixing metal fitting 14 and the rear support plate 12 are engaged. There is.

Next, a tiller 17, which is a working machine, is provided.
The soil cultivator 17 is composed of a soil plate 18 and a hexagonal cylindrical support rod 19.

In such a configuration, the tiller 1 to the fuselage 1
The installation procedure in step 7 will be explained. First, release the engagement between the rear support plate 12 and the fixing metal fittings 14,
The rear side of the front support plate 11 is opened by rotating it around the support shafts 13 and 15, respectively, to the state shown by the two-dot chain line (FIG. 1). Next, the soil cultivator 17 is moved from the rear to the front in the horizontal direction, and the two front sides of the support rod 19 are brought into contact with the front support plate 11. After the side surface of the support rod 19 is brought into contact with the front support plate 11, the rear support plate 12 is rotated to the position shown by the solid line so as to come into contact with the rear side surface of the support rod 19, and the fixing metal fitting 14 is shown in the solid line. Rotate it to the position to engage the tip of the rear support plate 12, and then tighten the set bolt 1.
6, the support rod 19 is clamped and fixed by the front support plate 11, the rear support plate 12, and the fixing fittings 14.

When removing the soil cultivator 17, loosen the set bolt 16 to release the engagement between the rear support plate 12 and the fixture 14, and rotate it to the position shown by the two-dot chain line.
Then, the soil cultivator 17 can be simply moved backwards in the horizontal direction, and the soil cultivator 17 can be easily removed.

Therefore, the soil cultivator 17 can be easily and safely attached to and removed from the machine body 1 while the rotary work machine 2 is grounded, and moreover, it can be done without the need for an assistant.

In addition, in this embodiment, an explanation has been given of a work machine that uses the soil cultivator 17, but the same applies to other work machines that are located behind the rotary work machine 2 and are towed, such as a ridge shaper. Easy to put on and take off.

Further, in this embodiment, a hexagonal pipe is illustrated and described as the support rod 19, but an elliptical pipe or the like may also be used.

Effects of the invention Since this invention is configured as described above, the attachment and detachment of the work equipment located at the rear of the rotary work equipment to and from the body of the rotary work equipment can be performed by connecting and disengaging the first support and the second support. It can be easily and safely carried out by horizontally moving the working machine in the front and back directions, and it has the advantage that it can be carried out without the need of an assistant.

[Brief explanation of the drawing]

Fig. 1 is an enlarged plan view showing the attachment part of the working machine in an embodiment of this invention, Fig. 2 is a side view showing how the working machine is attached to a mobile agricultural machine, and Fig. 3 is a side view showing a conventional example. , FIG. 4 is an enlarged plan view showing the work machine mounting portion. DESCRIPTION OF SYMBOLS 1... Body, 2... Rotary work machine, 3... Frame (support part), 11... Front support plate (receiving part), 12... Rear support plate (first support body), 14
. . . Fixing metal fittings (second support), 17 . . . Cultivator (work equipment), 19 .

Claims (1)

[Scope of utility model registration request] In a mobile agricultural machine in which a rotary work machine is connected to the rear of the machine body, a support part is provided on the machine body that extends to the rear of the rotary work machine, and the support part expands in the left and right direction toward the rear, and the support part extends to the left and right of the work machine. A receiving part that contacts at least two places on the side surface of the support rod is provided at the rear end of the support part, and the first support that contacts the other part of the side surface of the support rod can be freely rotated in the front and rear direction. A rotary section working machine mounting device, characterized in that a second support body is connected to one end and removably engaged with the first support body, and is connected to the other end of the receiving portion.