JP2005097973A - Bucket provided with sieve function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bucket provided with a sieve function for efficiently performing sieving working by remarkably enhancing agitating working efficiency. <P>SOLUTION: The bucket (1) is used to be attached to the arm edge of a shovel type excavator such as a back hoe. A bucket body (5) is provided with a pair of cutting edges (6) and (6) for spooning up an object by being provided on both the edge parts of a direction swinging an arm (3) and a netting part (7) arranged between the cutting edges (6) and (6) for dropping the spooned object downward. A sieve (40) is detachably mounted so as to be covered on the netting part (7) from upward. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a bucket having a sieving function that is used by being attached to the tip of an arm of an excavator excavator such as a backhoe.

  In recent years, it has been legally regulated to incinerate cut grass and felled trees, and therefore compost is made from pieces of trees obtained by pulverizing the cut grass and trees. In order to make compost, the mowing grass and wood fragments must be mixed and stirred with microorganisms and moisture, but if there are a large amount of these objects, use a bucket attached to a shovel excavator such as a backhoe. The object is scooped or dropped and stirred.

  As a bucket suitable for such a stirring operation, there is a skeleton bucket. In this type of skeleton bucket, an object is picked up by a blade part, and the object is agitated by dropping the object from a net-like part formed from the bottom surface to the back surface. Such a skeleton bucket is also disclosed in Patent Document 1, for example.

  However, in the conventional skeleton bucket, the blade portion for scooping the object is provided only at one place, and the bucket moving direction when scooping the object is limited to one direction. That is, when the blade is provided on the front side of the bucket as viewed from the excavator excavator, only the object on the front side of the bucket can be scooped, and the blade is provided on the back side of the bucket. In this case, only the object on the far side could be scooped. Therefore, even if the arm of the excavator excavator is swung and the bucket is reciprocated, the bucket only scoops the object in either the forward path or the return path, and the arm must be reciprocated many times. did not become.

  In addition, in the conventional skeleton bucket, only one place where the blade portion is provided is open, and other than that, it is in a state surrounded by the side plate and the net-like portion, so even if the bucket is shaken, There is a problem that it is difficult to smoothly move the scooped object and the object is easily clogged in the mesh portion.

  Therefore, in the Japanese Patent Application No. 2002-257882, the present applicant can scoop the object in the forward and backward paths of the bucket when the arm is swung, and the object scooped by shaking the bucket. We have proposed a bucket that greatly improves the stirring efficiency, which can be dropped while efficiently unraveling things.

JP 2000-192896 A

  However, for example, after making compost by mixing and stirring grass and tree pieces, it may be necessary to screen the compost by size. In such a case, it was necessary to prepare a bucket dedicated to sieving separately from the bucket as described above, and perform compost sieving work.

  Therefore, if it has not only mere stirring but also a sieving function for sieving compost by size, it is not necessary to prepare both a stirring bucket and a sieving bucket, which increases work efficiency. Therefore, a bucket having such a sieving function has been desired.

  Therefore, in view of the above, an object of the present invention is to provide a bucket having a sieving function that can remarkably improve the agitation efficiency and can also efficiently perform the sieving work.

  In order to solve the above problems, a bucket having a sieving function according to the present invention is a bucket that is used by being attached to the tip of an arm of a shovel excavator such as a backhoe, and the bucket body is a direction in which the arm swings. The bucket body includes a pair of scooping blades provided at both end portions of the scissors for scooping the object, and a net-like portion disposed between the scooping blades for dropping the scooped object downward. In addition, the sieve device is detachably mounted so as to cover the mesh portion from above.

  Specifically, the bucket body includes a plurality of brackets that rise from the mesh portion along the arm swinging direction, and the sieve is mounted between the brackets.

  The sieve device includes a pair of side plates and a sieve mesh disposed between the side plates, and the side plates are mounted so as to overlap the bracket of the bucket body.

  Further, one of both ends of the sieve mesh in the arm swinging direction is raised so as to cover one of the open portions for taking in the object opened at both ends of the bucket body in the arm swinging direction. It has been.

  Furthermore, the sieve device is provided with an engaging member that engages with the bucket body and a reinforcing member that reinforces the sieve screen.

  The mesh size of the sieve screen of the sieve device is 10 mm to 20 mm square.

  In the bucket of the present invention, the scooping blades are provided at both tip portions in the arm swinging direction, so that the object can be scooped in the forward path and the return path of the bucket reciprocated by the arm swinging. Since the taken object can be efficiently dropped while diffusing over a wide range, the stirring efficiency can be remarkably increased.

  In addition, since the sieve can be detachably attached, not only the stirring work as described above but also the sieving work of the object can be performed while using a single bucket, and the work efficiency Can be improved.

  In addition, when attaching a sieve between the brackets of the bucket body, the side plates of the sieve are overlapped with the brackets of the bucket body. Can be performed stably.

  In addition, since the open part of the bucket body for taking up one object is covered by the rising part of the sieve screen of the sieve device, the sieving work is efficient while stably holding a large amount of objects such as compost. Can be done well.

  Furthermore, it is possible to prevent the sieve from dropping from the bucket body by engaging the sieve with the bucket body. In addition, by reinforcing the sieve mesh, it is possible to suppress the deflection of the sieve mesh and maintain a horizontal plane particularly in the flat portion. Accordingly, the object sieving operation can be more reliably and efficiently performed.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The bucket (1) having a sieving function according to an embodiment of the present invention is mainly used for agitation of chopped grass and tree pieces as raw materials in compost production, and for sieving compost after production. In addition, it is also suitably used for sieving construction waste such as concrete waste.

  As shown in FIGS. 6 and 10, the bucket (1) is attached to the tip of the arm (3) of an excavator excavator (2) such as a backhoe via, for example, a four-bar link (4). It is attached in a state in which the angle can be changed in the same direction as the swinging direction.

  The bucket body (5) of the bucket (1) is, as shown in FIGS. 7 to 9, a pair of rake blades (6) (6) and a net-like shape arranged between the rake blades (6) (6). A portion (7) and, for example, three brackets (16), (16) and (17) rising from the mesh portion (7) are provided.

  The scooping blades (6) and (6) are used for scooping up the object onto the upper surface of the mesh portion (7), and both end portions of the bucket body (5) in the swinging direction of the arm (3). Is provided.

  These rake blades (6) and (6) are, for example, plate-like long in a direction substantially orthogonal to the arm swinging direction, a plate-like blade portion (13) made of a hard material, and the blade portion ( 13) The thinner plate-like base portion (14) is integrally connected by, for example, welding or the like so that the lower surface of the blade portion (13) and the lower surface of the base portion (14) are substantially flush with each other.

  The net-like part (7) is a part for dropping the scooped object while loosening it. The mesh portion (7) includes, for example, a plurality of main frame members (8) (8) arranged along the direction in which the arm (3) swings, and the main frame members (8) (8). A plurality of sub-frame members (9), (9),.

  Each main frame member (8) has, for example, a belt-like shape, and is formed in a substantially square shape with its central portion bent downward. Each sub-frame member (9) has, for example, a round bar shape and penetrates the side surfaces of the main frame members (8), (8). And so on.

  The shape and size of the gaps surrounded by the main frame members (8), (8), and the sub-frame members (9), (9), that is, the meshes (10), (10) of the mesh portion (7) are as follows: Depending on the type of object, for example, when the object is cut grass or a piece of wood, the object has a rectangular shape that is long in the arm swinging direction. Specifically, the length in the arm swinging direction (L1) Is approximately 180 mm, and the length (L2) in the direction orthogonal to the arm swinging direction is approximately 165 mm.

  The size of the mesh (10) (10) is not limited to the above, but the arm swinging direction is used to scoop the target grass and tree pieces into the bucket (1) and easily drop them. It is desirable to set the length (L1) of about 170 mm to 190 mm and the length (L2) in the direction orthogonal to the arm swinging direction to about 150 mm to 170 mm.

  Further, the shape of the meshes (10), (10)... Is longer in the swing direction of the arm (3), and when the arm (3) is swung to swing the bucket (1), the arm (3) ) Can be easily dropped.

  When the object is construction waste such as concrete waste, the mesh portion (7) of the bucket body (5) is used for screening the construction waste, and the size of the mesh (10) (10)... Is set to about 50 mm square.

  And the both ends of the main frame members (8), (8),... In the arm swinging direction of the mesh portion (7) are connected to the rake blades (6), (6), so that the rake blades (6) (6 ) Between which a mesh part (7) is arranged.

  The bottom of the bucket body (5) constructed by connecting the scooping blades (6), (6) and the mesh portion (7) is recessed in the vicinity of the center in the arm swinging direction, and both ends thereof are formed. It is the highest, and the scooped object is difficult to spill from the cutting edge side, so that many objects can be scooped at a time.

  The brackets (16), (16), and (17) rise from the mesh portion (7) along the arm swinging direction with an interval in a direction orthogonal to the arm swinging direction. These brackets (16), (16), and (17) are formed, for example, in a substantially sector shape having a small width toward the top. In addition, if the intensity | strength of the bucket (1) is fully securable, it is not necessary to provide a center bracket (17).

  Further, the sub-frame members (9), (9),. ) And fixed by welding or the like. In addition, the cutting edges (15) and (15) of the blade portions (13) and (13) of the rake blades (6) and (6) protrude from the edge of the brackets (16), (16) and (17) on the arm swinging direction side. Therefore, the cutting edges (15) and (15) are easy to see.

  The upper ends of the brackets (16), (16), and (17) are connected via a horizontal rod (19) arranged so as to be orthogonal to the arm swinging direction, and the horizontal rod (19) Attachment portions (21) and (21) attached to the tip of the arm (3) via a four-bar link (4) are provided. A pair of substantially L-shaped reinforcing ribs (20) and (20) are attached so as to straddle the outer brackets (16) and (16) and the horizontal rod (19).

  In the bucket body (5) configured in this way, spaces (35) and (35) for taking in objects are formed between the brackets (16), (16) and (17), and are formed at both ends in the arm swinging direction. Opening portions (36) and (36) for taking in objects having rake blades (6) and (6) are formed.

  And in this bucket (1), as shown to FIG. 1 thru | or 3, the sieve device (40) (40) is detachably mounted | worn with respect to said bucket main body (5). .

  As shown in FIG. 4, the sieve device (40) includes a pair of side plates (41) and (41) and a sieve mesh (42) disposed between the side plates (41) and (41).

  The side plates (41) and (41) are formed, for example, in a substantially inverted fan shape, and the upper side thereof is cut out in a substantially L shape so as to avoid the reinforcing rib (20) on the bucket body (5) side. The side plates (41) and (41) are connected to each other by upper L-shaped upper cross members (43) whose upper corners are substantially L-shaped, and are connected by lower Y-shaped cross members (44) whose lower corners are substantially V-shaped. Has been.

  The sieve mesh (42) is, for example, a woven mesh obtained by plain weaving of hard steel wire, and the mesh size is 10 mm to 20 mm square. In addition, as a material of the sieve mesh (42), a galvanized wire, a stainless steel wire, or the like may be used depending on the application. Moreover, not only a woven net but you may make it use the punching metal which formed many holes in the flat plate.

  The sieve mesh (42) includes, for example, a flat part (45) and a curved part (46) rising from one end side of the flat part (45), and is formed in a straight line on the lower side of the side plates (41) (41). A flat portion (45) is attached across the end edges, and a curved portion (46) is attached across the arc-shaped end edges of the side plates (41) (41). The other end side of the flat portion (45) is connected to the lower cross member (44), and the upper end side of the curved portion (46) is connected to the upper cross member (43).

  The sieve device (40) is provided with an engaging member (50) that engages with the bucket body (5) and a reinforcing member (51) that reinforces the sieve mesh (42).

  The engaging member (50) includes a pair of first engaging pieces (52) and (52) protruding downward from the lower linear end edges of the side plates (41) and (41), and the side plates (41) and (41). ) And a pair of second engaging pieces (53) and (53) projecting downward from the lower linear end edge.

  As shown in FIG. 5, the first engagement piece (52) has an inverted U-shaped engagement groove (54) formed at the center of the lower end thereof, and the bucket body (5 The sub-frame material (9) of the net-like part (7) can be inserted. A pair of pin insertion holes (55) and (55) are formed at the lower end of the first engagement piece (52) so as to sandwich the engagement groove (54), and the sub-frame member (9) is connected to the engagement groove. After being inserted into (54), the pin (56) is inserted into these pin insertion holes (55) and (55), thereby closing the engagement groove (54) and the first engagement piece (52) being the sub-frame. It cannot be removed from the material (9).

  The second engagement piece (53) is disposed closer to the curved portion (46) than the first engagement piece (52), and a lateral groove (57) is provided on the opposite side of the first engagement piece (52). The root portion of one scoop blade (6) of the bucket body (5) can be inserted into the lateral groove (57).

  The reinforcing member (51) extends between the side plates (41) and (41), for example, at approximately the center of the flat portion (45) of the sieve mesh (42) and at two locations of the curved portion (46). ... between the bosses (62) (62) protruding from the side plates (41) (41) between the bars (60) (60) ... And a reinforcing shaft (63) that is passed through. By providing such a reinforcing member (51), bending of the sieve mesh (42) can be suppressed, and in particular, a horizontal plane can be maintained in the flat portion (45).

  As shown in FIGS. 1 to 3, the sieves (40) and (40) configured in this way are spaces (35) and (35) between the brackets (16), (16) and (17) of the bucket body (5). Further, the reticulated portion (7) is mounted from above so that the side plates (41) (41) overlap the brackets (16) (16) (17).

  When the sieve (40) is mounted, the first engagement piece is inserted while inserting the root portion of one rake blade (6) of the bucket body (5) into the lateral groove (57) of the second engagement piece (53). The sub-frame member (9) is inserted into the engagement groove (54) so that the engagement groove (54) of (52) covers the sub-frame member (9) of the mesh portion (7). Then, by inserting the pin (56) across the pin insertion hole (55) (55) of the first engagement piece (52) to prevent the sub-frame member (9) from coming off, 40) is engaged with the bucket body (5).

  In addition, as shown in FIG. 1, the side plates (41) and (41) of the sieve device (40) are fixed to the brackets (16) and (17) with fasteners (65) and (65) such as bolts, respectively. (40) The horizontal shakiness is suppressed.

  In this mounted state, the curved portions (46), (46) of the sieve meshes (42), (42) in the sieves (40), (40) are, specifically, one open portion (36) of the bucket body (5). Covers the open part (36) on the far side of the bucket as seen from the excavator excavator.

  Next, using the bucket (1) provided with this sieving function, for example, an operation of stirring an object such as a mowing grass or a piece of wood, which is a raw material of compost, and further sieving the compost by size will be described.

  First, for stirring, the bucket (1) without the sieve (40) is used to scoop off the object and drop the scooped object while loosening it.

  As shown in FIG. 10, the scooping operation is performed using a boom (27) that swings by expansion and contraction of the boom cylinder (26) and an arm (3) that swings by expansion and contraction of the arm cylinder (28). ) Is moved and the angle of the bucket (1) is adjusted by the expansion and contraction of the working cylinder rod (29), and the object (25) is scooped with the scooping blades (6) and (6). . At this time, since the rake blades (6) and (6) are attached to the both ends of the bucket body (5) in the arm swinging direction, the bucket (1) is viewed from the excavator excavator (2). The object (25) on the near side and the object (25) on the far side can be scooped off. Therefore, it is possible to scoop the object (25) in both the forward path and the return path of the bucket (1) that reciprocates by the swing of the arm (3). Therefore, not only the number of times the arm (3) is swung is decreased, but also the movement of the excavator excavator (2) is decreased, and the working time can be shortened.

  Also, because the cutting edge (15) (15) side of the scooping blade (6) (6) is higher than the mesh part (7), the scooped object (25) is difficult to spill out, and a large amount of objects at a time Can be skimmed off.

  The work of dropping the object (25) from the bucket (1) is to loosen the object (25) from the mesh (10), (10), etc. by swinging the bucket (1) by swinging the arm (3). In addition to dropping, it is performed by dropping from the open portions (36) and (36) of the bucket body (5).

  As a result, the object (25) can be moved greatly and smoothly along the arm swinging direction above the mesh part (7), and the object (25) is clogged in the meshes (10), (10). It is difficult, and since the object (25) can be diffused over a wide range, it can be sufficiently stirred. In addition, at the time of this stirring, it is possible to attach a vibration generator (not shown) to the bucket (1) to further improve the working efficiency.

  The upper surface of the object (25) after completion of stirring is leveled using the rake blades (6) and (6) of the bucket (1). At the time of the leveling work, as shown in FIG. 11, the bucket (1) is tilted so that the upper surface of the rake blade (6) (6) faces the shovel excavator (2) side, and the bucket (1) Is moved to the excavator excavator (2) side along the ground (32). At this time, the rake blades (6) and (6) are attached so that the blade tips (15) and (15) protrude from the edge of the brackets (16), (16) and (17) on the arm swinging direction side. Therefore, the cutting edges (15) and (15) of the rake blades (6) and (6) can be easily seen, and the leveling work can be easily performed.

  As shown in FIG. 12, the leveling operation may be performed by tilting the bucket (1) so that the lower surfaces of the scooping blades (6) and (6) face the shovel excavator (2).

  In this way, after finishing agitation and leveling, compost is created, and when composting the compost by size, use the bucket (1) with the sieve (40) attached. First, scrape the compost. This scooping work is different from the scooping work described above, because the open part (36) on the back side is covered with a sieve device (40), so that the bucket (1) as viewed from the excavator excavator (2). The compost on the front side of the front side is scooped from the open part (36) on the front side. At this time, compost spillage from the open side portion (36) on the back side of the bucket body (5) can be prevented, and a large amount of compost can be stably held.

  Then, by shaking the bucket (1), as shown in FIG. 6, the scooped compost (70) is changed from the mesh of the flat part (45) of the sieve mesh (42) to the mesh (10) of the mesh part (7). (10) ... is sifted through, and the compost (70) scooped off from the mesh of the curved part (46) covering one open part (36) of the bucket body (5) is also screened out though it is small. . At the time of sieving, it is also conceivable to attach a vibration generator (not shown) to the bucket (1) to further improve the working efficiency.

  If this bucket (1) is used, it is also effective to screen construction waste materials such as concrete waste materials in addition to agitation of mowing grass and wood fragments as compost raw materials and sieving compost as described above. Can be done. In this case, first, the building waste material is sieved by the mesh part (7) of the bucket body (5), and further, the sieve body (40) is attached to the bucket body (5), and the sieve body (40) is sieved. Finally, get the remaining soil of construction waste.

  The present invention is not limited to the above embodiment, and it is needless to say that many modifications and changes can be made to the above embodiment within the scope of the present invention.

It is a perspective view showing a bucket equipped with a sieve according to an embodiment of the present invention. It is the transverse cross section similarly. It is the longitudinal cross-sectional view similarly. It is a perspective view of a sieve. It is a disassembled perspective view of a 1st engagement piece part. It is a figure for demonstrating sieving work. It is a perspective view of the bucket of the state which is not equipped with the sieve. It is the transverse cross section similarly. It is the longitudinal cross-sectional view similarly. It is a figure explaining the stirring operation similarly. It is a figure explaining the leveling work similarly. It is a figure explaining the leveling work similarly.

Explanation of symbols

(1) Bucket
(2) Excavator excavator
(3) Arm
(5) Bucket body
(6) Drake blade
(7) Mesh
(16) (17) Bracket
(25) Object
(36) Open part
(40) Sieve
(41) Side plate
(42) Sieve
(50) Engagement member
(51) Reinforcing member
(70) Compost

Claims (7)

A bucket used by being attached to the tip of an arm of an excavator excavator such as a backhoe, wherein the bucket body is provided at both ends of the arm in a swinging direction, and a pair of scooping blades for scooping up an object And a net-like portion disposed between the scooping blades for dropping the scooped object downward, and a sieve device is detachably mounted on the bucket body so as to cover the net-like portion from above. A bucket having a sieving function. The bucket having a sieving function according to claim 1, wherein the bucket body includes a plurality of brackets rising from the mesh portion so as to follow the arm swinging direction, and the sieve device is mounted between the brackets. The bucket having a sieve function according to claim 2, wherein the sieve device includes a pair of side plates and a sieve mesh disposed between the side plates, and the side plates are mounted so as to overlap the bracket of the bucket body. . One of the both ends of the mesh screen in the arm swinging direction is raised so as to cover one of the open portions for taking in the object opened at both ends in the arm swinging direction of the bucket body. A bucket having a sieve function according to claim 3. The bucket provided with the sieving function according to any one of claims 1 to 4, wherein the sieving device is provided with an engaging member that engages with the bucket body. The bucket provided with the sieve function according to any one of claims 3 to 5, wherein the sieve device is provided with a reinforcing member that reinforces the sieve screen. The bucket provided with the sieving function according to any one of claims 3 to 6, wherein a mesh size of the sieving screen of the sieving device is 10 mm to 20 mm square.

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