JPH0132801Y2 - - Google Patents

Description

[Detailed explanation of the invention] Conventionally, various methods have been used to attach various working machines such as soil cultivation plates and leveling plates, but many of them are complicated, and for example, from rotary tillage to soil cultivation work. It was not easy to switch. The present invention is an improvement on this, and aims to provide a mechanism that allows a work machine to be attached to a work machine rod such as a soil plate, and at the same time, the work machine rod can be attached to and detached from a work machine hit with a single touch. It is. Hereinafter, based on the drawings, a detailed explanation will be given of a case where a soil plate is attached to an embodiment of the present invention as a working machine.

FIG. 1 shows a situation in which a riding type agricultural tractor 1 having a general structure is connected to a rotary tiller 5 via a three-point hitch 3 at the rear. The upper end front part of the transmission case 7 containing the transmission device is connected to the prime mover 11 of the agricultural tractor 1 via universal joints 9, 9a, and the lower end part is connected to the tilling shaft 13 extending from side to side with tilling claws 15. The tilling section 17 is constructed by arranging them appropriately. Mounting bolts 19, 19a are provided at the rear of the upper end of the transmission case 7.
Attach a tail wheel (not shown) or install the soil plate device 21.
It is designed to be able to tow various types of work equipment. Cultivating soil plate 23 attached to the cultivating soil plate device 21
is attached to a connecting member separate from the connecting member 25, and this connecting member is connected to the left and right horizontal rods 27.
It is provided so that it can be slid on the top and fixed at an appropriate position with a fastener other than the fastener 29, such as a tightening bolt. The hitch 31 extends toward the rear of the tilling section 17, and is provided at its rear end with a joining section 32 that can be joined to the rod 27. This joint portion 32 is sandwiched between the connecting member 25 and the rod 27, and is provided so that it can be fixed to the hitch 31 at the same time as the connecting member 25 is fixed. The hitch 31 is attached to the transmission case 7 with attachment bolts 19, 19a, and is provided so as to be able to pull the soil plate device 21.

With the above configuration, when towing the soil plate device 21, the right and left soil plates 23 are attached to the rod 27.
After arranging the hitch 31 and sliding the U-shaped groove of the hitch 31 along the rod 27 between the connecting member 25 and the rod 27 of the soil plate 23 and pushing it into the gap between the connecting member 25 and the rod 27. , the hitch 3 is simultaneously attached to the soil plate 23 and the connecting member 25 by the fastener 29.
Since the hitch 31 can be fixed to the rod 27, the hitch 31 can be attached to the transmission case 7 of the rotary tiller 5.
By attaching it to the rear part of the soil using mounting bolts 19, 19a, it is possible to till and cultivate the soil at the same time.
The above is how to attach and detach the hitch 31 and the soil plate rod 27.
This is made possible by one-touch operation by moving the connecting member 25 along the soil plate rod 27.

As described above, since the present invention has the structure described in the claims for utility model registration, when removing the work machine, the fixing of the connecting member by the fastening member is released, and the connecting member is moved in the axial direction of the work machine rod. By uncoupling the connection between the joint of the work machine hit and the work machine rod, the work machine can be detached by simply moving the machine body to which the work machine is attached forward. When installing the work equipment, contrary to the above, move the machine body to join the work equipment hitch and the work equipment rod, and then connect the joint part of the work equipment hitch and the work equipment rod. It is sufficient to connect the members by moving them in the axial direction and fix them using a fastening member. Therefore, attachment and detachment of working equipment such as soil plate devices, which was conventionally complicated, can be done with a single touch by moving the connecting member, and it can be easily towed by an agricultural tractor, etc., for example, after rotary tillage. It has become possible to perform soil cultivation work easily. In addition, since the connecting member fits around the joint between the joint and the working machine rod, the joint is protected and the joint is prevented from deforming due to collisions with stones, etc. during tillage work, etc. Maintains ease of attachment and detachment for a long time.

This invention is not limited to the above-mentioned embodiments, and the invention can be implemented in modes other than the above-mentioned embodiments. For example, various types of work equipment such as a leveling plate and a ridge forming machine can be attached.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a side view showing the whole of an agricultural tractor with a rotary tiller and a soil plate device attached to the rear;
The figure is a side view illustrating details of the soil plate mounting device, and FIG. 3 is a rear view. Explanation of symbols representing main parts of the drawings, 23...
... soil plate, 25 ... fixing member, 27 ... rod,
31...Hitsuchi.

Claims (1)

[Scope of utility model registration request] A work equipment hitch to which a work equipment is attached, a joint portion having a bag-shaped cross section that is provided at the rear end of the work equipment hitch and can be fitted to a work equipment rod, and a connection between this joint portion and the work equipment rod. A connecting member that can be fitted and connected and disconnected by moving the working machine rod in the axial direction so as to cover the fitting periphery, and a state in which this connecting member is connected to the joint portion and the working machine rod. A work equipment mounting device characterized by comprising a fastening member that is fixed with.