JPS5825010Y2 - Front loader mounting device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a mounting device for a front loader.

To install a front loader on the front of a vehicle such as a tractor,
The longitudinal midpoints of the pair of left and right lift arms are supported by stand members set up on the ground, and the mounting members on the front loader side are set at a height corresponding to the receiving members provided on both sides of the vehicle. It is well known that this was done by moving the mounting member forward toward the loader, fitting the mounting member into the receiving member, and inserting an insertion tool such as a pin into the insertion hole of both.
Conventionally, by the time the lift arm is supported by the stand member and the mounting member is fitted into the receiving member, the stand member sinks due to the weight of the lift arm, and the mounting member deviates from the height corresponding to the receiving member. However, if no measures have been taken to prevent this, it will be extremely difficult and labor-intensive to align the two insertion holes and insert the insertion tool. Often, the insertion tool is forcefully inserted into the insertion holes of the two, which do not match.
The actual situation was that the insertion tool, mounting member, and receiving member were damaged.

In view of the above circumstances, and as a result of intensive research, the present invention has been developed to allow a front loader to be easily installed on a vehicle, and to avoid damage to the insertion tool, mounting member, and receiving member when installing the front loader. The purpose of the present invention is to provide a mounting device, and in order to further achieve this purpose, a mounting member pivotally connected to the base end of a lift arm is fitted into a receiving member that opens forward and is provided on a vehicle such as a tractor. , the front loader is mounted on a vehicle by inserting an insertion tool such as a pin into both of these parts, and the mounting member is provided with at least one ball joint main body, and the insertion tool provided on the main body is The insertion tool is inserted into the hole, and the insertion tool and the ball joint body form a ball joint.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings, where 1 is a tractor body, 2 is a front wheel, and 3 is a rear wheel.

Reference numeral 4 denotes a pair of left and right frames that are attached to both sides of the vehicle body 1 via brackets 5 and the like, and a receiving member 8 to which a mounting member 7 of the front loader 6 is attached is provided on the rear end side.

This receiving member 8 has a groove shape that opens forward, and is provided with a sloped wall 9 that rises at a steep slope on the rear side. The part extending from the upper part of the front side of the side plate 13 on the side of the vehicle body 1 to the vicinity of the lower part serves as the vehicle body side guide part 14 and is bent toward the vehicle body 1 side at an angle of approximately 45 degrees. A portion of the side plate 13 extending from the upper part on the front side to the midway point in the height direction serves as an outer side guide portion 15, and is bent outward at an angle of approximately 45°.

Note that upper and lower insertion holes 16.1 are provided on both side plates 13 of the upper chamber part 11.
7 are opened, and cylinder pivot holes 18 are opened in both side plates 13 of the lower chamber part 12.

On the other hand, the front loader 6 includes a pair of left and right lift arms 20 having packets 19 at their tips, and each of these arms 20.
a mounting member 7 which is pivotally connected to the base end of the lift arm 20; a lift cylinder 22 whose rod side end is pivotally connected to the middle part of the lift arm 20 in the longitudinal direction via a bracket 21;
1, the lift arm 20 is pivotably supported around a horizontal axis.
It consists of a stand member 23 installed alongside the lift cylinder 22, a hydraulic hose (not shown) of the lift cylinder 22, and the like.

Each of the mounting members 7 includes an upper arm pivot portion 24 and a mounting portion 25 integrally extending below the upper arm pivot portion 24 . The end is pivotally supported by a support shaft 26, and is rotatable around the support shaft 26.

The mounting portion 25 is mainly composed of a pair of left and right side plates 27, and upper insertion holes 28 are provided at the upper portions of the mounting portions 25 and 28. Bushes are inserted through and fixed to the side plates 27, and upper insertion holes 28 are opened on both sides. Corresponding to the upper insertion hole 16 of the portion 11, a ball joint main body portion 29 is provided at a lower portion thereof with a narrowed interval between side plates 27.

The ball joint main body 29 is equipped with a ball body 30 having twenty parallel faces, and is slidable while making spherical contact with the both side plates 27. The ball body 30 has an opening on the two parallel faces. A lower insertion hole 31 is provided in the upper chamber part 1 of the receiving member 8.
These lower insertion holes 1 correspond to the lower insertion holes 17 of 1.
A ball joint is constituted by an insertion tool 32 such as a pin inserted into the ball joint 7.31 and the ball joint body 29.

A reinforcing rib 33 is fixed to a portion between the upper insertion hole 28 of the both side plates 27 and the ball joint body 29.

In order to attach the above-mentioned 70 loader 6 to a vehicle, the pair of left and right lift arms 20 are supported by each stand member 23 erected on the ground, and the mounting portion 25 of each mounting member 7 is attached to the upper chamber of each receiving member 8. 11, the vehicle is moved forward toward the front loader 6 in the direction of the arrow in FIG. 1, and the mounting portion 25 is fitted into the upper chamber portion 11.

At this time, each guide portion 14.15 of the receiving member 8 is attached to the mounting portion 25.
The attachment part 25 is guided to the upper chamber part 11 while correcting the deviation in the left and right direction with respect to the upper chamber part 11.

As a result, each stand member 23 sinks due to the weight of the lift arm 20, and the mounting portion 25 of the mounting member 7 becomes lower than the height corresponding to the upper chamber portion 11 of the receiving member 8. are fitted with a slight deviation in the height direction from the height corresponding to the upper chamber part 11, and the upper and lower insertion holes 16, 17, 28 of both are fitted.
．． 31 do not correspond to each other, the mounting member 7 is swung around the support shaft 26, and the ball joint main body 2 of the mounting portion 25 is
The royal part 1 of the lower insertion hole 31 of the ball body 30 provided in 9
The insertion tool 32 is inserted into one of the lower insertion holes 17 of the upper chamber part 11 so as to roughly correspond to the lower insertion hole 17 of the upper chamber part 11, and the insertion tool 32 is slightly shifted from the lower insertion hole 17 of the upper chamber part 11. ball body 3
0 into the lower insertion hole 31 of 0, move the mounting member 7, and at the same time slide the ball body 30 against the side plates 27 of the mounting part 25 with the insertion tool 32.
2 is further inserted into the lower insertion hole 31 of the ball body 30, and the lower insertion hole 31 of the ball body 30 is matched with the lower insertion hole 17 of the upper chamber part 11, and the insertion tool 32 is inserted under the ball body 30. It is inserted into the insertion hole 31 and the other lower insertion hole 17 of the upper chamber part 11, thereby positioning the attachment part 25 with respect to the upper chamber part 11. Next, the upper insertion hole 16 of the upper chamber part 11 and the attachment part are inserted. By inserting the insertion tool 32 into the upper insertion hole 28 of 25, each mounting member 7 can be easily attached to each receiving member 8, and at the time of installation, the insertion tool 32 can be inserted between the two that do not match. Since there is no need to forcefully insert the insert into the insertion holes 16.17, 28.31, there is no risk of damaging the insertion tool 32, the mounting member 7, and the receiving member 8.

Then, insert the cylinder tube side end of the lift cylinder 22 into the lower chamber 12 of the receiving member 8, and insert the pin 35 into the pivot hole 34 provided at the tube side end and the cylinder pivot hole 18 of the lower chamber 12. By inserting the cylinders 22 into the lower chamber 12, connecting hydraulic hoses to each cylinder 22, and installing each stand member 23 along each lift arm 20, the front loader 6 can be easily attached to the vehicle. Can be installed on.

Further, when removing the front loader 6 from the vehicle, the above-mentioned procedure can be easily reversed.

Note that the mounting part 2'5 of the mounting member 7 is connected to the royal part 1 of the receiving member 8.
1, the lower surface of the arm pivot 24 is attached to the royal part 11.
The rear surfaces of both side plates 27 of the mounting part 25 are on the front surface of the slope wall 9 of the upper chamber part 11, and a part of the lower end of the both side plates 27 of the mounting part 25 is on the upper surface of the partition wall 10 of the upper chamber part 11. If the attachment part 25 is in contact with the upper chamber part 11, it will be easier to position the attachment part 25 in the upper chamber part 11, and the load applied to the attachment member 7 of the front loader 6 will be transferred to the receiving member 8 instead of the insertion tool 32. It is more preferable because it is received by the entire upper chamber part 11.

Further, in the embodiment, the number of ball joint body parts 29 provided in the mounting portion 25 of the mounting member 7 is one, but a plurality of ball joint body parts 29 may be provided.

The present invention is as described above, and even if the mounting member deviates slightly in the height direction from the height corresponding to the receiving member when the front loader is mounted on the vehicle, it can be coped with and the front loader can be easily mounted on the vehicle. At the time of installation,
This has the advantage that there is no risk of damaging the insertion tool, the mounting member, and the receiving member.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the present invention, Fig. 2 is a side view of the front loader attached to a tractor, and Fig. 3 is a side view showing an embodiment of the present invention.
4 is an enlarged sectional view of the main part of FIG. 2, and FIG. 5 is a front view of FIG. 4 showing the installed state. DESCRIPTION OF SYMBOLS 1... Tractor body, 4... Frame, 6... Front loader, 7... Mounting member, 8... Receiving member, 17 ... Lower insertion hole of receiving member, 20 ... Lift arm, 23 ...
... Stand member, 29 ... Ball joint body, 30 ... Ball body, 31 ... Lower insertion hole of ball body, 32 ... Insertion tool.

Claims (1)

[Scope of utility model registration request] A mounting member pivotally connected to the base end of the lift arm is fitted into a receiving member that opens forward and is provided on a vehicle such as a tractor,
The front loader is mounted on a vehicle by inserting an insertion tool such as a pin into both of these parts, and the mounting member is provided with at least one ball joint main body, and an insertion hole is provided in the main body. A mounting device for a front loader, characterized in that the insertion tool is inserted into the front loader, and the insertion tool and the ball joint body form a ball joint.