JPH0442965Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a structure for mounting a work machine on a tractor.
More specifically, the present invention relates to a structure for separately attaching and detaching a front loader and an abdominal working machine to a tractor.

(Prior Art) When mounting a front loader on a tractor, there is a technique disclosed in Japanese Utility Model Publication No. 58-25010.

This involves fixing a pair of left and right brackets upright on the abdomen of the tractor, fixing a receiving member to the upper part of the bracket, and fitting the mounting member fixed to the base end of the front loader into the receiving member through a fastener. It can be attached and detached freely.

In addition, the technology for attaching belly-mounted working machines such as mower weeders, cultivators, etc. to tractors was developed by Jikosho.
There is one published in Publication No. 58-1087.

A mounting member having a U-shaped cross section that covers the lower abdomen and side walls of the tractor is attached by bolts along the longitudinal direction of the tractor body, and a mower can be attached to the mounting member.

(Problems to be Solved by the Invention) By the way, in the prior art described above, when the front loader and the mower are mounted separately, the bracket and the mounting member interfere with each other.
When installing a front loader, it is necessary to remove the mounting member in the longitudinal direction of the machine body, and when installing a mower, it is necessary to remove the bracket, and they cannot be attached together.

The present invention allows the front loader and mower attachment parts to be attached separately to the work equipment attachment member attached along the longitudinal direction of the tractor body.
It is an object of the present invention to allow the mounting member to be left attached to the tractor body as it is, thereby simplifying the replacement of the working machine.

(Means for Solving the Problems) The technical means taken by the present invention to achieve the above-mentioned object are characterized by the fact that the front loader 18 and the abdominal work machine 21 can be attached and detached. In one in which the work implement mounting member 12 is attached along the longitudinal direction of the tractor body 7,
A pair of left and right overhanging brackets 16 are provided outwardly protruding from the tractor body 7 in front of the entrance 17 of the tractor 1, and the mast mounting portion 1 of the front loader 18 is mounted on the upper surface side of the overhanging brackets 16.
9 respectively, and the overhang bracket 1
6 and the corresponding pair of right and left rear portions of the tractor body 7 are connected by the work implement mounting member 12, and the A pair of left and right front mounting portions 20 are provided on the rear surface of the overhanging bracket 16 to detachably attach the abdominal working machine 21.
A pair of left and right rear mounting parts 24 are provided on the tractor body 7 or the work equipment mounting member 12 behind the front mounting part 20, and each of the work equipment mounting members 12 is provided with a pair of left and right rear mounting parts 24 to which the abdominal work equipment 21 is detachably mounted. The point is that connecting members 26 are provided to connect each other.

(Function) To install the front loader 18, the loader mounting base 40 can be fitted into the mounting portions 19 provided at the upper part of the pair of right and left overhanging brackets 16, and the front loader 18 can be mounted with bolts or the like. Work machine 21
The mounting part 20 of the mounting member 1 will not be interfered with, even if earthworks etc. are performed using this loader 18.
Since the front end of the vehicle body 2 is connected to the engine 4 side and the rear end thereof is connected to the rear axle bracket 8, bending of the vehicle body can be prevented.

To attach the abdominal work machine 21, use its attachment part 2.
0 and 24 via the elevating link mechanism 22. In this case as well, since the front mounting portion 20 is provided on the rear side of the bracket 16, the loader mounting portion 19 will not be interfered with.

Furthermore, the connecting member 26 prevents the mounting member 12 from expanding outward in the left-right direction.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

In the drawings, particularly in FIGS. 1 and 2, reference numeral 1 designates a tractor, which is wheel-shaped and has a pair of left and right front wheels 2 and a pair of left and right rear wheels 3, with an engine 4 mounted near the front. clutch housing 5
A transmission case 6 is connected to the tractor body 7 via the transmission case 6 to form a tractor body 7, and a rear axle housing 8 is provided on both rear sides of the transmission case 6 in an outwardly projecting manner.

Reference numeral 9 denotes a pair of left and right front axle frames, whose rear ends are connected and fixed to the engine 4 and protrude forward, and a power extraction device 10 is provided between the frames 9 on the front side.

This power take-off device 10 has a PTO shaft 11, and in order to be able to freely change the PTO shaft 11 between a rearward position in FIG. In the figure, the power take-off device 10 can be freely raised and fixed.

Reference numeral 12 denotes a pair of left and right mounting members, the front end of which is attached to the engine 4 side by being attached to the front axle frame 9 via a stay 13, and the rear end thereof is attached to the rear axle housing 8 via a stay 15. It is being

That is, the attachment member 12 is a plate-shaped body attached to the front and back of the tractor body 7 along the longitudinal direction thereof.

Reference numeral 16 denotes a pair of left and right overhanging brackets, which are groove-shaped members fixed in a manner that protrudes outward from the mounting member 12 in front of the entrance/exit door 17, and a mounting portion 19 of the front loader 18 is mounted on the upper surface of each of the brackets. It is provided as a shape.

Note that the projecting brackets 16 may be bridged and fixed to the lower surface of the housing 5 so as to be connected to each other at the lower surface of the clutch housing 5. In this case, the bracket 16 may be attached to the mounting member 12. This constitutes a connecting member that connects each other.

Reference numeral 20 denotes an attachment part on the front side of the abdominal work machine 21, which is provided in a box shape on the rear side of each overhanging bracket 16, and has a pin 23 that can be inserted into and removed from the upper cylinder part of the lifting link mechanism 22 from the direction of movement. It can be attached rotatably by inserting the .

Reference numeral 24 denotes an attachment part on the rear side of the abdominal work machine 21, and the attachment member 1 is attached to the tractor body 7 on the lower side of the entrance/exit 17 or as shown in FIG.
The mounting portion 24 and the mounting portion 20 are both a left and right pair, and their axes in the front and back direction (progressing direction) are aligned with each other, and the upper part of the elevating link mechanism 22 The cylindrical portion can be attached and detached by inserting and removing a pin 25.

Reference numeral 26 denotes a connecting member, which connects the pair of left and right mounting members 12 to each other on the front side as shown in FIG. In some cases, it may be attached via 28.

In addition, as shown in FIG. 3, the overhanging bracket 16 is projected from the mounting member 12 through a bent portion 29 so that the outer side is upward. The lower surface of the mounting member 12 is positioned so as to form a regulating portion 30 .

The elevating link mechanism 22 is a parallel link consisting of an upper link and a lower link, and is used to move the abdominal working machine, in this example, the mower 21, up and down while maintaining a parallel posture. 32 and a lifting lever 33 fitted on the shaft 28 are connected by a linear body 34 such as a wire or rope, and a lifting lever 35 accompanying the lifting lever 33 is connected.
is fitted onto the shaft 28, and the same lever 35 and mower 21 are connected.
are connected by a chain 36.

The mower 21 is located between the front wheel 2 and the rear wheel 3,
The mower 21 has a power receiving part 37 in the upper part, and the receiving part 37 and the above-mentioned PTO shaft 11 can be freely disconnected from each other via a universal joint shaft 38, and the mower 21 is equipped with a cutting blade body 39. .

The front loader 18 has a boom 41 mounted on a pair of left and right mounting bases 40 so as to be rotatable up and down by a cylinder 42, and has a bucket 44 at the tip of the boom 41 that is operated by a cylinder 43. It is fitted into the mounting portion 19 of the bracket 16 and attached with bolts 45 shown in FIG. 3 or the like.

(Effect of the invention) According to the invention, a pair of left and right projecting brackets 1
The work equipment mounting member 12 including the tractor body 7 is provided with a loader mounting part 19 on the upper part and also has mounting parts 20 and 24 for the abdominal work machine 21, so that the loader can be attached to the tractor body 7 while the work equipment mounting member 12 is attached to the tractor body 7. Various working machines such as mowers can be attached.

In addition, the work equipment mounting member 12 connects the overhang bracket 16 that protrudes outward from the tractor body 7 in the left-right direction on the front side of the entrance/exit 17 and the corresponding rear axle housing 8, etc., to each other.
It can resist bending acting on the tractor body 7,
Not only can the shock during loader work be alleviated, but the abdominal work machine 21 can be mounted on a wide part, improving stability.

In addition, since the overhanging bracket 16 is located in front of the entrance/exit 17, the operator is safe even when working with the belly-mounted work machine 21 attached.
It can also be used as an auxiliary step.

Furthermore, mounting portions 20 and 24 for the abdominal work machine 21 are provided on the rear side of the overhanging bracket 16 and on the tractor body 7 or the mounting member 12, and these mounting portions 20 and 24 are different from the loader mounting portion 19. There is no problem when installing the loader, and on the contrary,
The loader mounting portion 19 does not pose an obstacle when attaching the abdominal work machine 21, and the loader and the abdominal work machine 21 can be particularly attached together here.

In particular, since the mounting portion 20 is provided on the rear surface of the bracket 16 between the mast mounting portion 19 and the work equipment mounting member 12 located inside the mast mounting portion 19, the abdominal work equipment 21 can be mounted without being interfered with by the mast mounting portion 19. Mounting and dismounting is convenient and can be quickly replaced, and since the pair of left and right mounting members 12 are connected to each other by a connecting member 26, it is possible to prevent them from expanding each other. It can be made to be physically strong.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is an overall side view, Fig. 2 is a plan view of the main parts, and Figs. 3 and 4 are elevational views showing the main parts of the front and rear parts. . DESCRIPTION OF SYMBOLS 1... Tractor, 4... Engine, 7... Tractor body, 8... Rear axle housing, 12... Mounting member, 16... Overhang bracket, 18... Front loader, 19... Loader mounting part, 20 ,2
4... Attachment portion of the abdominal work machine 25, 26... Connection member.

Claims (1)

[Scope of utility model registration request] A work machine mounting member 12 to which a front loader 18 and a belly-mounted work machine 21 can be attached and detached, respectively.
is attached along the longitudinal direction of the tractor body 7, and a pair of right and left overhanging brackets 16 are provided in front of the entrance 17 of the tractor 1 to protrude outward from the tractor body 7. Mast attachment parts 19 of the front loader 18 are respectively provided on the upper surface side of the front loader 16, and the overhang bracket 16 and the corresponding pair of left and right rear parts of the tractor body 7 are connected by the work equipment attachment members 12, respectively. and the mast attachment part 1
A pair of left and right front mounting portions 20 for removably attaching the abdominal work implement 21 are provided on the rear surface of the overhanging bracket 16 between the work implement mounting member 12 located inside the work implement mounting member 12, and the front mounting portions A pair of left and right rear attachment portions 24 are provided on the tractor body 7 or the work equipment mounting member 12 rearward from the tractor body 7 or the work equipment mounting member 12 to which the abdominal work equipment 21 is detachably mounted, and furthermore, a pair of left and right rear mounting portions 24 are provided to connect the work equipment mounting members 12 to each other. A working machine mounting structure for a tractor, characterized in that a member 26 is provided.