JPS5923812Y2 - Front loader mounting device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a mounting device for a front loader.

Conventionally, there is a model in which the rear surface of the float loader side and the tractor side are provided with protrusions and recesses that engage with each other by relative movement in the longitudinal direction of the two to determine the mounting position of the front loader. Since the front loader is heavy, directional alignment is extremely troublesome.

This invention relates to a mounting device for a front loader that can overcome the above-mentioned drawbacks.

This invention provides a front loader in which a loader arm and rod that hold attachments such as packets and a hydraulic cylinder that drives these loader arms and rods are attached to a frame, and the front and rear parts of the frame are attached to the body of the tractor. A mounting base is provided to support the frame, a sloped surface whose upper surface slopes backwardly downward is formed at the rear of the frame, and the rear mounting base is connected to the upper surface of the sloped surface to guide the mounting position of the frame. a locking member that forms a guide and a flat support surface that supports the lower surface of the frame, and applies force to at least one of the mounts in a direction in which the frame engages with the mount with a wedge action to lock the movement thereof; It has been established.

Therefore, by simply joining the frame of the front loader to the supporting surface of the mounting base at the rear of the tractor and moving the tractor and front loader relatively back and forth in this state, the inclined surface and the guide can be secured like a wedge. This allows the front loader to be easily aligned, and in this state, the frame of the front loader is fixed by the locking member.

An embodiment of this invention will be explained based on the drawings.

1 is a body of a tractor, and on both sides of this body 1, a mounting base 2 located on the front side and a mounting base 3 located on the rear side are provided.

Next, a frame 6 with side plates 5 attached is provided on both rear sides of the U-shaped frame body 4 which is open at the rear.

A loader arm 7 is attached to each side plate 5 of this frame 6.
and hydraulic cylinders 8 and 9 are rotatably mounted, and a link 11 is attached to a mounting plate 10 fixed in the middle of the loader arm 7.
A docking plate 13 is rotatably attached to the tip of the rod 12 and the loader arm 7, which are rotatably connected to the tip of the link 11. An attachment 14 such as a packet is detachably attached to the holder, one end of the hydraulic cylinder 8 is rotatably connected to the link 11, and one end of the hydraulic cylinder 9 is rotatably connected to the mounting plate 10. ing.

This constitutes a front loader 15.

A rear downward slope 16 is formed at the upper rear end of the frame body 4 of the frame 6, and a nut 1 is mounted on the inside of the rear surface.
7 is fixed.

The upper part of the rear mounting base 3 is provided with a flat support surface 18 that supports the lower surface of the frame 4, and the inclined surface 16.
An inclined guide 19 that is joined to the frame 6 and a plate 20 that suppresses movement of the frame 6 in the left-right direction are formed.

Further, a screw 23 which is a locking member and is screwed into the nut 17 is provided on the rear surface of the mounting base 3.

Furthermore, a U-shaped locking frame 24 that opens forward is fixed to the upper part of the front mounting base 2.

A cylindrical boss 22 into which a stand 21 is inserted is welded to the lower surface of the frame 4.

In such a configuration, although a portion is not shown in FIG. 3, the attachment 14 is pushed into the soil and the stand 21 is inserted into the boss 22 to support the front loader 15.

In this state, move the aircraft 1 and attach the mounting bases 2 and 3 to the frame 6.
If the frame 6 is rotated backward and downward about the boss 22 using the shortening movement of the hydraulic cylinder 9, the rear part of the frame 6 will abut against the support surface 18, and the front part of the frame 6 will be engaged. The height corresponds to the height of the stop frame 24.

Then, when the body 1 is moved forward a little, the rear part of the frame body 4 slides under the guide 19 due to the guiding action of the guide 19 and the inclined surface 16, and the front part of the frame body 4 engages with the locking frame 24.

In this state, by screwing the screw 23 into the nut 17, the front loader 15 is fixed to the body 1.

In this way, when installing the front loader 15, the positions can be extremely easily aligned by first supporting the frame 6 on the support surface 18 and moving the front loader 15 and the fuselage 1 relatively back and forth. .

Furthermore, the tightening force of the screw 23 increases the wedge-like engagement force between the guide 19 and the inclined surface 16, so that the mounting strength becomes stronger.

The work involves removing the stand 21, extending and retracting the hydraulic cylinder 9 to raise and lower the loader arm 7, and
The attachment 14 is rotated by expanding and contracting the rod 1''2 to rotate the attachment 14.

When removing the front loader 15 from the body 1, the attachment 14 is lowered and joined to the ground surface, the stand 21 is inserted into the boss 22, the screw 23 is loosened, and the body 1 is moved backward.

Although the screws 23 are used as locking members, these screws 23 may be screwed into the side surface of the frame 6.

Alternatively, a pin or the like may be used as the locking member. Furthermore, locking members such as screws 23 and pins may be inserted into the mounting base 2 at the front.

Further, when the front loader 15 is removed from the fuselage, no component of the front loader 15 remains in the fuselage 1, so visibility is not obstructed and operation is easy.

As mentioned above, this idea forms a backward downward slope at the rear of the front loader frame, and by providing a support surface that supports the frame and a guide that connects to the slope on the mount on the tractor side, the support surface The mounting position of the front loader can be determined very easily by simply supporting the frame of the front loader and moving the front loader and the tractor in the longitudinal direction relative to each other. Since a force is applied to the front loader to lock it, even if the front loader is slightly misaligned, the position can be corrected so that each joint surface is brought into close contact with the front loader, and the front loader can be firmly attached.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, with FIG. 1 being a side view, FIG. 2 being a plan view, and FIG. 3 being a partially enlarged side view. 1... Airframe, 2-3... Mounting stand, 6.
...Frame, 7...Loader arm, 8
~9...Hydraulic cylinder, 12...Lot, 14...Attachment, 15...
・Front loader, 16... Inclined surface, 18...
...Supporting surface, 19...Guide, 23...
...screw (locking member).

Claims (1)

[Scope of utility model registration request] A front loader is provided in which a loader arm and rod for holding attachments such as packets and a hydraulic cylinder for driving these loader arms and rods are attached to a frame, and the front and rear parts of the frame are supported on the body of the tractor. A stand is provided at the rear of the frame, the upper surface of which slopes downwardly to the rear, and a guide attached to the upper surface of the slope to guide the installation position of the frame; a flat support surface that supports the lower surface of the frame, and a locking member is provided on at least one of the mounts to apply a force in a direction in which the frame engages with the mount with a wedge effect to lock the movement of the frame. A front loader mounting device characterized by: