JPS6340529Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is mainly adopted for excavators of the type that can be equipped with either a shovel or a backhoe attachment, and in addition to the normal digging function, it also has the function of dredging side ditches. This invention relates to a bucket device with a new structure.

Conventional buckets, which are attachments for shovels or backhoes, have a fairly large dimension from the cutting edge to the deepest part of the bottom plate in order to enhance the effect of scooping up dirt. As seen in the side view, when trying to use it for cutting and dredging water ditches around 40 cm wide around fields, the bottom plate angle p could not be held at a sufficient angle to scoop up dirt, etc. I had no choice but to reattach it to a small, dedicated attachment, or rely on manual labor.
However, if the method is to reattach it to a dedicated attachment, the main work is excavating and leveling the field, such as during field foundation maintenance work, and the work can be carried out using a large bucket, which is highly efficient. As a result, not only does changing to a special attachment become complicated and reduce work efficiency, but additional costs are required for the special attachment. The reality is that most of the work is done manually. As a result, the workers engaged in this work are forced to perform extremely demanding work, which poses not only a problem in terms of work efficiency but also a big problem in terms of safety management.

In view of these circumstances, this invention has succeeded in developing and completing a completely new structure of a bucket dot device for excavators by making improvements to the commonly used large bucket dot. Hereinafter, details of the configuration will be shown together with drawings based on typical embodiments.

The bucket main body of this invention is basically formed by a top plate 2, a bottom plate 1, and a bone plate 3 that integrally connects the two. The bottom plate 1 is integrally connected to the top plate 2 via bone plates 3, 3, . . . at a lower position separated from the top plate 2 by a predetermined distance. Further, an excavation blade plate 5 is attached and formed at the tip of the bottom plate 1, and the bottom plate 1
At the back of the blade, there is a soil-receiving back plate that closes or partially closes the area between the top plate 2 and the top plate 2 to prevent soil taken in from the blade plate 5 directions from leaking out backwards, or a soil-receiving back plate as shown in the diagram. As usual, a soil receiving grid 7 is formed. In addition, the bottom plate 1
The figure is shown as a flat shape in order to make it suitable for field infrastructure maintenance such as excavation, leveling, trenching, edging, slope formation, etc. However, depending on the purpose, it may be curved as appropriate. Of course, it is also possible to adopt something.

A predetermined portion of the bottom plate 1 of the bucket main body thus formed, in this embodiment, the bottom plate portion following the digging blade plate 5 is rotated by a predetermined angle toward the back surface of the bottom plate 1 with the blade plate 5 side as the pivot joint 12. Bottom plate 1 as if it were flexible
It is formed to be regulated within the whole and is used as the rotating bottom plate 11.

The width of the rotating bottom plate 11 is approximately equal to the width of the tip of the bucket body, and the depth is determined from the width of the side gutter that requires dredging, and a width of about 30 cm is usually effective. And, as shown in the example,
Forming a direct pivot portion 12 following the excavation blade plate 5,
The earth and sand excavated and scooped in by the blade plate 5 can be made to reach the rotary bottom plate 11 immediately, or, although not shown, the pivot portion 12 is formed at a slight distance from the blade plate 5. , it is also possible to reach the rotating bottom plate 11 after the bottom plate 1 is raised slightly.

Furthermore, this rotating bottom plate 11 has a rotating angle q.
Angle regulating member 1 for regulating the angle within a predetermined range
3, 13... are formed. In the illustrated example, three standing plates are formed in the area sandwiched between the bone plates 3, 3,
A hook portion 13a is formed on a standing plate at the center thereof, and the hook portion 13a is locked to the bottom plate 1, thereby regulating the rotation angle q of the rotating bottom plate 11. In addition, although not shown in the drawings, standing plates are formed only at locations close to the bone plates 3, 3 (therefore, in this example, there is no standing plate at the center of the rotating bottom plate 11, etc.). , it is possible to adopt appropriate means, such as defining the rotation angle q of the rotation bottom plate 11 by the relationship between the pin protruding from the bone plate 3 and the "hole" of the standing plate that engages with the pin. be.

In addition, in this embodiment, soil retaining rods 14,
14 is removably inserted through the horizontal structure, and the rotary bottom plate 11 is equipped with these soil retaining rods 14, 14 during trench dredging work or ditch cutting work to receive earth and sand, and otherwise functions as a normal bucket. In such a case, remove the soil retaining rods 14, 14, and tighten the bolts or wedge between the retaining plate 15 formed on the bottom plate 1 corresponding to the position where the erected plate for the angle regulating member 13 is formed and the erected plate. A flat ordinary bottom plate 1 including the rotating bottom plate 11 is realized by connecting and fixing the rotating bottom plate 11 by means of a stop or the like to prevent the rotating bottom plate 11 from rotating. In this state, if the angle regulating member 13 is used as in the embodiment, the standing plate for the angle regulating member 13 and other standing plates will naturally remain protruding into the bucket main body.
Since the upright plate is arranged so as to face perpendicularly to the earth and sand raking direction, there is almost no problem with the bucket function.

In the embodiment, guide rollers 6, 6 are formed at the tips of the bone plates 3, 3 located on both sides of the bucket, and the guide rollers 6, 6 are formed at the tips of the bone plates 3, 3 located on both sides of the bucket. This is an example in which care has been taken not to damage the inner wall surface of the gutter or damage the gutter itself, but the guide rollers 6, 6
Adoption may be determined as appropriate depending on the situation.

As mentioned above, when the bucket tote device of this invention having the above-mentioned configuration is used as a normal bucket tote, such as during field excavation, land leveling work, ridge slope forming work, etc., the rotary bottom plate 11 is The rotary bottom plate 11 is connected and fixed to the bottom plate 1 when the rotation is prevented and the whole is made into a regular single-plate flat bottom plate bucket. The location (in the embodiment, the connection and fixation location between the upright plate for the angle regulating member 13 and the retaining plate 15) is released, the rotating bottom plate 11 is rotated toward the back surface of the bottom plate 1, and the rotating bottom plate 11 is By simply inserting the soil retaining rods 14, 14 horizontally in a state in which the soil retaining rods 14 and 14 are horizontally inserted in a state in which the soil retaining rods are projected obliquely to the back side of the bottom plate 1, the bucket becomes a dedicated bucket device, and there is no need to detach the bucket main body from the bucket arm A of the excavator.

The operations during this trench cutting or trench dredging work are shown over time in Figures 3A to 3C. That is, after the rotary bottom plate 11 is made rotatable as described above, the bucket arm A is operated to cut the back side of the bottom plate 1 of the bucket main body into the side groove U (or, although not shown, groove cutting work is performed). If so, slide it down toward the bottom of the side gutter along one rising inner wall surface of the groove cut section). In this process, as shown in FIG. Then, the excavation blade plate 5 of the bucket main body digs into the accumulated earth and sand E in the side ditch U. Next, as shown in Figure B, the excavator's hydraulic cylinder (not shown) is operated to change the bottom plate angle p' of the bucket body and operate it to scoop up the accumulated earth and sand E.
In this process, the rotating bottom plate 11, which had been restricted by the rising inner wall surface of the gutter U, is gradually released and gradually begins to tilt toward the back surface of the bottom plate 1, so that the bottom plate 1 of the bucket main body is the most inside the gutter U. With respect to the bottom plate angle p in the rotated state, this rotating bottom plate 11
The angle r from the horizontal plane of Then, it will be placed on this rotating bottom plate 11, and in that position, the operation process as shown in Figure C (in this process, the guide roller 6,
6 functions effectively), trench dredging work (same as trench cutting work) can be carried out.

As mentioned above, the excavator bucket device of this invention is equipped with a rotating bottom plate that rotates at a predetermined angle only toward the back of the bottom plate at a predetermined location on the bottom plate of the bucket main body. The work range of the bucket tot for excavation and land leveling work has been expanded, making the bucket tot extremely flexible. As a result, not only work efficiency has been doubled, but trench cutting and trench dredging work, which had previously been a demanding task for workers, has been completely mechanized, making it easier to manage labor safety. It will be extremely excellent. Moreover, since the configuration is extremely simple, it is possible to realize a durable device that is less likely to break down at a low cost, so it can be used not only for field maintenance work but also as a bucket device for general civil engineering work. It can be widely adopted.

As shown in the illustrated embodiment, when this bucket device is attached to an excavator and operated as a shovel type bucket, the innermost part of the bucket main body should be used as a soil-receiving grid 6 instead of a soil-receiving back plate. As a result, the excavating blade plate 5 or the working area at its tip can be seen through from the same location, which is convenient.

[Brief explanation of the drawing]

The drawings are of a representative embodiment of this invention; FIG. 1 is a perspective view of the whole, FIG. 2 is a cross-sectional view from X to X in FIG. 1, and FIG. 3 is a cross-sectional view showing the operation process. 4 are side views corresponding to FIG. 2 of a conventional product. 1...Bottom plate, 2...Top plate, 3...Bone plate, 4...
Connection part, 5... Excavation blade plate, 6... Soil receiving grid, 11... Rotating bottom plate, 12... Pivotal joint part, 13
...Angle regulating member, 14...Soil stopper bar, A...
Bucket arm, E...accumulated earth, U...side ditch.

Claims (1)

[Scope of utility model registration request] A top plate on which a connection part to the excavator bucket arm is formed and a bottom plate with an excavation blade plate placed a predetermined distance below the top plate are connected and integrated by a bone plate or the like. A predetermined portion of the bottom plate of the excavation bucket main body is formed into a rotary bottom plate, with the excavation blade plate side of the bottom plate being a pivot joint, and the deep side of the bottom plate being able to freely rotate by a predetermined angle in the direction of the back surface of the bottom plate. Bucket device for excavator.