JPS6157231B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a work equipment mounting device for a vehicle, and it is possible to mount a directly mounted work equipment and a front three-point linkage mechanism as necessary by using mounting frames provided on both sides of the vehicle body. This is how it was done.

BACKGROUND ART In vehicles such as tractors, not only can a front loader or other front loader be mounted directly on the vehicle body, but also a front-mounted work machine such as a grass cutter can be mounted via a front-mounted three-point link mechanism. However, in the past, the mounting frames for the directly mounted work machine and the front mounted three-point linkage machine were each independent, resulting in a very complex structure and complicated handling during attachment and detachment.

The present invention solves these conventional problems, and is characterized by a front-mounted three-point link mechanism, which includes a top link and a pair of left and right lower links, mounted on the front end of the vehicle body. In a vehicle in which a directly mounted working machine equipped with a pair of left and right booms located on both sides of the vehicle body is removably attached to the vehicle body at multiple locations in the longitudinal direction on both sides of the vehicle body. Mounting frames in the direction are attached, and the front ends of the left and right mounting frames are provided with upright frames whose upper ends are connected to each other by a connecting body, and a mounting part is provided to connect the top link in a detachable manner to the connecting body,
At the front ends of the left and right mounting frames, a mounting part is provided to removably mount the pair of left and right lower links, and a front mount part is provided to removably mount the front side of the directly mounted work machine.
A rear attachment part is provided on the rear end side of the left and right attachment frames to detachably attach the rear side of the directly mounted working machine.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. In FIG. 1, 1 is a tractor body, and the structure includes a front wheel bearing stand 2, an engine 3, a flywheel housing 4, a transmission case 5, etc. A front weight 6 is attached to the front axle bearing stand 2, and a front wheel 7 is supported via a front axle or the like. 8 is the bonnet that covers engine 3 etc.
Reference numeral 9 denotes a handle, which is located approximately in the center of the tractor body 1 in the longitudinal direction. Reference numeral 10 denotes a mounting frame arranged on both sides of the front half of the tractor body 1, and a side plate 1 in the longitudinal direction.
1 and an L-shaped mounting arm 12. Each mounting arm 12 has mounting plates 13 and 14 at both ends, respectively, as shown in FIGS. It is fixed to a mounting seat 16. Further, a mounting bracket 17 is fixed to each mounting arm 12 in correspondence with the outer side surface of the front weight 6 in the lateral direction. Each side plate 11 has a front weight 6 at its front end.
The rear end of the mounting bracket 17 is fastened to the outer surface of the mounting bracket 17 with bolts 18 and 19, respectively. Reference numeral 20 designates a front loader as a directly mounted working machine, which includes a pair of left and right booms 21, a pair of left and right boom cylinders 22 for raising and lowering the booms 21, a bucket 23 pivotally attached to the tip of the boom 21, and the boom 21 and boom cylinders 22. It is composed of a support body 24 and the like to be attached. Each support body 24 is removably fitted into a groove-shaped fitting portion formed in a fixed frame 25, and the fixed frame 25 has a mounting plate 26 at the lower end, and the mounting arm 12 is connected to the mounting plate 26 via the mounting plate 26. It is removably attached to the mounting plate 14 with bolts 27. Of course,
The boom 21, boom cylinder 22, fixed frame 25, etc. are arranged on both sides of the tractor body 1 so as to sandwich the bonnet 8. The fixed frame 25 has a reinforcing frame 28 that projects forward, and its front end is connected to the mounting bracket 3 provided at the front end of the side plate 11 by a mounting pin 29.
It is removably attached to 0. The mounting pin 29 and the mounting bracket 30 constitute a front mounting section to which the front loader 20 is attached, and the mounting arm 1
2. The mounting plate 14 constitutes a rear mounting section.

Reference numeral 31 denotes a connecting plate, which is detachably connected between the pair of left and right side plates 11 by bolts 32 as shown in FIGS. 4 and 5, and is detachably fastened to the front surface of the front weight 6 by bolts 33. ing.
As shown in FIG. 6, the connecting plate 31 is provided with a pair of left and right upright frames 34 that protrude forward and upward at positions spaced inward from the side plate 11 at a predetermined distance. A connecting cylinder 35 connecting the left and right sides is attached by a flange 36 and bolts 37. Reference numeral 38 denotes a rotation shaft inserted through the connecting cylinder 35, and lift arms 39 are fixed to both ends of the rotation shaft. Reference numeral 40 denotes a pair of lift cylinders on the left and right sides, one end of which is supported by the lift arm 39 and the other end inserted between the side plate 11 and the upright frame 34 by a mounting pin 41. Reference numeral 42 denotes a front-loading working machine such as a grass cutter, which is detachably attached to the front of the tractor body 1 via a front-loading three-point linkage mechanism 43. The front three-point link mechanism 43 includes one top link 44 and a pair of left and right lower links 45, and the top link 44 is mounted on a top link mounting base 46 fixed to the center of the connecting cylinder 35. It is detachably attached using a mounting pin 47.
Note that the mounting base 46 and the mounting pin 47 constitute a mounting portion for the top link 44. Each lower link 45 is inserted between the side plate 11 and the upright frame 34 below the lift cylinder 40 and is supported by a mounting pin 48, and the lift arm 39 is connected to the lift arm 39 by a mounting pin 50 via a lift rod 49 at an intermediate portion. is connected to. Mounting pin 4
1 and 48 are removably inserted across pin holes formed in the side plate 11 and the upright frame 34, respectively, and a mounting pin 50 is removably inserted into the front end of the lift arm 39. Therefore, the front three-point linkage mechanism 43 is detachable from the mounting frame 10 of the tractor body 1. Note that a notch 51 is formed at the upper end of the upright frame 34. The mounting pin 48 constitutes a mounting portion for the lower link 45.

In the above configuration, when attaching the front loader 20 to the tractor body 1, first the support body 24 is
The fixed frame 25 is separated from the fixed frame 25.
The mounting plate 26 of the mounting arm 12 is placed on the mounting plate 14 of the mounting arm 12 and fastened with bolts 27, and the reinforcing frame 2
Attach the front end of 8 to the mounting bracket 30 with the mounting pin 29.
Fix it by. In this way, the tractor body 1
After attaching the fixed frame 25 to each attachment frame 10,
Next, the boom 21 is supported with the bucket 23 grounded and the support body 24 at an appropriate height, and the tractor body 1 is moved to fit the support body 24 into the fitting part of the fixed frame 25. The support body 24 may be fixed to the fixed frame 25 using a mounting pin or the like. The front loader 20 can now be mounted on the vehicle body 1 using the mounting frame 10 as shown by the solid line in FIG.

At this time, the top link 44, lower link 45, lift rod 49, etc. that make up the front three-point link mechanism 43 have been removed, and the upright frame 43, lift arm 39, top link mounting base 46, etc. are attached to the pair of left and right side plates. 44, and is provided within the width of the bonnet 8, so there is no problem when the boom 21 is raised or lowered, and therefore there is no need to increase the interval between the booms 21, and the work is easy. It's easy.

When using the front loading working machine 42, the front loader 20 is removed and the front loading three-point link mechanism 43 is mounted on the mounting frame 10. In other words, the top link 44 is attached to the top link mounting base 46 by the mounting pin 47.
At the same time, insert the rear end of the lower link 45 between the side plate 11 and the upright frame 34, and connect the mounting pin 48.
Connect by. Further, each lower link 45 is connected to the lift arm 39 via a lift rod 49. When the installation of the front three-point link mechanism 43 is completed in this way, next the front three-point link mechanism 4
It is only necessary to connect the muzzle-loading work machine 42 to the front end of each link of No. 3, and therefore, the muzzle-loading work machine 42 can be raised and lowered via the lift arm 39 etc. by the expansion and contraction movement of the lift cylinder 40. Further, the front mounted working machine 42 can be grounded and backed up by a tractor via the front mounted three-point linkage mechanism 43.

The mounting bracket 30 is shown in FIGS. 7 and 8.
As shown in the figure, the front end of each side plate 11 may be bent slightly outward and formed integrally. Furthermore, as shown by imaginary lines in FIG. 8, if a pin portion 52 for connecting the reinforcing frame 28 is integrally formed with the outer end of the mounting pin 48 for the lower link 45, the mounting bracket 30 can be omitted. Note that the upright frame 34 can be integrally provided in an L-shape at the front end of the side plate 11, and a lift arm 39, a lift cylinder 40, etc. can be provided laterally outward from this side plate 11. In this case, the connecting plate 3
1 may be omitted.

In the present invention, the mounting frames provided on both sides of the vehicle body are used, and the directly mounted working machine and the front-mounted three-point link mechanism can be attached and detached to the mounting frames, so compared to the case where mounting frames are provided individually. The structure is very simple,
It is possible to prevent waste of materials and other materials, and at the same time, it is easy to handle and has a good appearance.

[Brief explanation of the drawing]

Figure 1 is a side view showing one embodiment of the present invention, Figure 2 is a side view showing one embodiment of the present invention;
The figure is an enlarged view in the direction of the arrow in Fig. 1, Fig. 3 is an enlarged view in the direction of the arrow in Fig. 2, Fig. 4 is an enlarged side view of the main part, and Fig. 5 is an enlarged plan view of the main part. , FIG. 6 is a perspective view of the same main part, and FIG. 7 is a side view of the main part of another embodiment.
FIG. 8 is a plan view of the main part. DESCRIPTION OF SYMBOLS 1...Tractor body, 10...Mounting frame, 11...Side plate, 12...Mounting arm, 20...Front loader, 21
...Boom, 25...Fixed frame, 31...Connection plate, 34...
Erecting frame, 35... Connection cylinder, 38... Rotating shaft, 39...
Lift arm, 40...Lift cylinder, 42...Front mounting work equipment, 43...Front mounting three-point link mechanism, 44...Top link, 45...Lower link, 46...Top link mounting base.

Claims (1)

[Claims] 1 Top link 44 and a pair of left and right lower links 4
A front-mounted three-point linkage mechanism 43 equipped with In a vehicle that is configured to be detachably attached at multiple locations in the longitudinal direction on both sides, mounting frames 10 in the longitudinal direction are mounted on both sides of the vehicle body 1, and a connecting body 35 is attached to the front end of the left and right mounting frames 10 on the upper end side. A mutually connected upright frame 34 is provided, a connecting body 35 is provided with mounting portions 46 and 47 for removably connecting the top link 44, and a pair of left and right lower links 45 are provided on the front end sides of the left and right mounting frames 10. A mounting part 48 that is detachably attached and a directly mounted working machine 2
a front mounting part 29 for detachably attaching the front side of 0;
30, on the rear end side of the left and right mounting frames 10,
A working machine mounting device for a vehicle, characterized in that rear mounting parts 12 and 14 are provided to detachably attach the rear side of a directly mounted working machine 20.