JPH07291015A - Bucket - Google Patents

Abstract

PURPOSE:To obtain a bucket used for carrying farm products or the like, which can conduct efficient inverting operation. CONSTITUTION:A bucket 1 comprising right and left side plates 16, a back plate 17 and a bottom plate is connected at the discharge port 19 side of the bucket 1 to a support frame 4 provided with erect rods 11,11 having brackets 7, 8 for installation and support rods 13, 13 by a support shaft to be inverted. A cylinder tube 30 of a hydraulic cylinder 25 is connected to a horizontal rod 14 provided on the forward end part of the support frame 4 through a link 34 controlled by stoppers 41, 42. and a piston rod 26 of the hydraulic cylinder 25 is connected to the lower surface of the bottom plate of the back plate 17 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bucket mounted on a tractor or the like and used for transporting agricultural products and the like, and more particularly to a bucket having a high workability which enables an efficient reversing operation.

[0002]

2. Description of the Related Art Buckets are used for transporting agricultural products, loading them on trucks, moving earth and sand, and removing snow. Conventionally, this type of bucket has a tractor
It is generally mounted on a point support device or on a forklift. In any of these mountings, the bucket needs to have a structure in which it is inverted with the support shaft as a fulcrum, so the bucket is inverted by two hydraulic cylinders arranged outside the left and right side plates.

As described above, the conventional bucket requires a minimum of two hydraulic cylinders, and there is a structure in which four hydraulic cylinders are arranged.
This is a cause of high costs. In addition, an additional device is required for disposing the plurality of hydraulic cylinders, which complicates the structure and increases the cost.

[0004]

SUMMARY OF THE INVENTION The present invention was created in view of the problems of the prior art as described above, and an object thereof is to enable an efficient reversing operation with a single cylinder. It is intended to provide a bucket having a simple structure and low cost and high workability.

[0005]

In order to achieve the above object, a bucket according to the present invention is a standing rod having a bracket formed of left and right side plates, a back plate and a bottom plate and having brackets for mounting at both ends of a main rod. A support frame provided with a support rod extending parallel to the front and a support rod provided in parallel to the front, in a bucket in which the discharge port side of the bucket is connected by a support shaft so as to be reversible, the cylinder tube of the hydraulic cylinder has a tip portion between the support frames. It is characterized in that the upper and lower sides of the horizontal rod are connected to each other through a link controlled by a stopper, and the piston rod of the hydraulic cylinder is connected to the lower surface of the bottom plate on the back plate side.

The bucket and the support frame have a cylindrical body with a support tool extending from the discharge port side of the bucket to the back plate side and a support tool arranged between the support frames at both ends of the bottom surface of the bottom plate forming the bucket. Are connected with pins.

Further, the upper and lower stoppers have a flat plate shape, the lower stopper has a curved portion at the tip thereof, and the hydraulic cylinder has a double-acting or single-acting structure.

[0008]

According to the present invention, a bucket is mounted on a three-point supporting device of a tractor or a forklift, and agricultural products are stored in the bucket for transportation or loading on a truck. When the hydraulic cylinder is extended by operating the lever near the driver's seat, the bucket can be inverted via the spindle,
You can release the stored crops from the outlet of the bucket.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side view of the bucket of the present invention used for a tractor, FIG. 2 is a side view of the bucket, and FIG.
FIG. 4 is a bottom view of the bucket as seen from the lower surface, and FIG. 4 is a perspective view of the support frame on which the bucket is placed as seen from the tractor side.

In this embodiment, an example in which the bucket 1 is used for the tractor 2 as shown in FIG. 1 will be described. The bucket 1 is placed on a support frame 4 mounted via a three-point support device 3 of the tractor 2. That is, this support frame 4
Is attached to the three-point device 3 composed of the upper link 5 and the left and right lower links 6 via the brackets 7 and 8 with the mounting pins 9.

As shown in FIG. 4, the support frame 4 is formed with standing rods 11 and 11 facing each other at both ends of the main rod 10. The leading ends of the standing rods 11 and 11 are bent inward. The inclined portion 12 thus formed is formed, and the pair of brackets 7 and 8 described above are formed at the distal end portion and the proximal end portion, respectively. In addition, support rods 13, 13 extending in parallel from the front ends of the main rod 10 are formed.

A U-shaped horizontal rod 14 is provided at a tip portion between the support rods 13 and 13, and the support 1 is provided at both end portions of the horizontal rod 14.
5 and 15 are provided respectively.

The bucket 1 to be placed on the support frame 4 has the same structure as a conventional bucket, and has left and right side plates 16 and a back plate 1.
7 and the bottom plate 18 are assembled, and the discharge port 19 is provided on the tip side.
Is formed, and the upper surface has an opening 20 to form a box shape, in which agricultural products, earth and sand, snow, and the like can be stored. A flat blade 21 is provided at the lower end of the discharge port 19.

Further, at both ends of the bottom surface of the bottom plate 18 of the bucket 1, support tools 22, 22 extending from the lower surface position of the flat blade 21 to the rear plate 17 side are provided in parallel.

In the bucket 1 having such a structure, the back plate 17 side is positioned on the upright rods 11 and 11 side of the support frame 4 and arranged on the support rods 13 and 13, and a pipe is provided between the support members 15 and 22. A body 23 is interposed, and a support shaft 24 such as a pin is connected to the support tools 15 and 22 and the pipe body 23. Therefore, the bucket 1 is configured to be rotatable about the support shaft 24 in the reverse direction with respect to the support frame 4.

In order to rotate the bucket 1, a hydraulic cylinder 25 is provided at the center of the bottom surface of the bottom plate 18. That is, the piston rod 2 of the hydraulic cylinder 25
A terminal 27 provided at the tip of 6 is connected to brackets 28, 28 provided on the lower surface of the bottom plate 18 on the side of the back plate 17 via a pin 29. The terminal 31 of the cylinder tube 30 of the hydraulic cylinder 25 is connected to the links 34, 34 connected to the pin 33 of the bracket 32 provided on the horizontal rod 14 with the pin 35 interposed therebetween.

Further, the brackets 32, 32 of the horizontal rod 14
A flat plate-like stopper 41 having an end projecting from the brackets 32, 32 and having a slight curved portion 40a is provided above the, and as will be described later, the piston rod 26 of the hydraulic cylinder 25 has a link 34, 34 of The stopper 40 abuts on the upper surface. Also, the bracket 3
A flat plate-shaped stopper 42 having a curved portion 40b is also provided below the reference numerals 2, 32, and the stopper 42 abuts the lower surfaces of the links 34, 34 when the piston rod 26 extends. It is preferable that the stoppers 41 and 42 have the base end portions attached to the horizontal rod 14, but the bracket 3
It may be attached to the upper surface of 2, 32. One stopper 41
Can also be attached directly to the bottom plate 18. The stoppers 41 and 42 have a flat plate shape, but have a curved portion 4 at the tip.
0a and 40b are preferably provided, but the curved portion 40a
It does not have to be.

In the illustrated example, the hydraulic cylinder 25 uses a double-acting cylinder that applies acting force in both directions, and has two front and rear ports, which are connected via hydraulic hoses 43, 43, respectively. A single acting cylinder may be used. Although not shown, the hydraulic hoses 43, 43
Is connected to the directional control valve on the tractor 2 side, for example, through the inside of the horizontal rod 14 so that the bucket 1 can be operated by the lever of the directional control valve in the driver's seat.

The operating state of the bucket 1 will be described with reference to FIGS. FIG. 5 is a schematic side cross-sectional view showing a state in which a conveyed product such as agricultural products is stored in the bucket 1 and conveyed and moved. In the state of this transportation movement, the upper surfaces of the links 34, 34 are in contact with the stopper 40. Also, as shown in the figure, the terminal 27 of the piston rod 26 of the hydraulic cylinder 25 is
And the position of the terminal 35 of the tube cylinder 30 is lower than the line connecting the pins 34 of the links 34, 34,
The initial operation of the hydraulic cylinder 25 is simple.

FIG. 6 is a schematic side sectional view showing a state in which the initial operation of the hydraulic cylinder 25 is started to discharge the transported object. The hydraulic cylinder 25 is operated by operating a lever (not shown).
When the link is activated, the links 34, 34 move the lower stopper 42
Abut. Then, when the piston rod 26 is further extended, the bucket 1 starts reversing. That is, the back plate 17 side of the bucket 1 is pushed up with the pin 24 as a fulcrum, and the bucket 1 starts to invert.

FIG. 7 is a schematic side cross-sectional view showing a state in which the bucket 1 is tilted to the maximum extent to discharge a conveyed product from the discharge port 19. In this discharge state, the piston rod 26 of the hydraulic cylinder 25 is in the most extended state, the bucket 1 is in the maximum inclined state, and the links 34, 34 are brought into contact with the lower stopper 42. By maintaining the abutting state by the links 34, 34 and keeping the piston rod in the most extended state, the bucket 1 can maintain the maximum inclined state and the transported object can be discharged from the discharge port 19.

[0022]

The present invention has the above-described structure, and the link of the cylinder tube of the hydraulic cylinder for reversing the bucket is connected to the terminal of the hydraulic cylinder via the stoppers so that the vertical movement of the link is controlled. The driving force effectively works without loss, and the bucket can be efficiently inverted.

Further, since only one hydraulic cylinder is used for the bottom plate of the bucket, its structure can be simplified, the manufacturing cost can be reduced, and the number of failures can be reduced accordingly.

[Brief description of drawings]

FIG. 1 is a schematic side view in which the bucket of the present invention is used for a tractor.

FIG. 2 is a side view of the bucket.

FIG. 3 is a bottom view of the bucket as viewed from below.

FIG. 4 is a perspective view of a support frame on which a bucket is mounted as seen from the tractor side.

FIG. 5 is a schematic side sectional view showing an operating state when the bucket is transported.

FIG. 6 is a schematic side cross-sectional view showing an operating state at the start of inversion of the bucket.

FIG. 7 is a schematic side sectional view showing an operating state when the bucket is discharged.

[Explanation of symbols]

 1 Bucket 4 Support Frame 7 and 8 Bracket 11 Standing Rod 13 Supporting Rod 14 Side Rod 16 Side Plate 17 Back Plate 18 Bottom Plate 19 Discharge Port 24 Spindle 25 Hydraulic Cylinder 26 Viston Rod 30 Cylinder Tube 34 Link 41, 42 Stopper

Claims (4)

[Claims] 1. A bucket comprising a left and right side plate, a back plate and a bottom plate, and a support frame provided with a standing rod having mounting brackets at both ends of a main rod and a supporting rod extending parallel to the front, respectively. In a bucket in which the discharge port side of is connected to a support shaft so as to be reversible, the cylinder tube of the hydraulic cylinder is provided with a horizontal rod provided at the tip end portion between the support frames and a link whose upper and lower sides are controlled by a stopper. And a piston rod of a hydraulic cylinder is connected to the lower surface of the bottom plate on the back plate side. 2. The bucket and the support frame have a cylindrical body in which a support tool extending from the discharge port side of the bucket to the back plate side and a support tool arranged between the support frames are provided at both end portions of the bottom surface of the bottom plate forming the bucket. The bucket according to claim 1, wherein the buckets are connected by a pin. 3. The upper and lower stoppers are flat plates,
The bucket according to claim 1, wherein the lower stopper has a curved portion at its tip. 4. The bucket according to claim 1, wherein the hydraulic cylinder has a double-acting or single-acting configuration.