JP4386600B2 - Bucket wing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bucket wing device that is effective mainly for snow removal work.
[0002]
[Prior art]
Conventionally, in order to perform snow removal work in areas where traffic is hindered due to snowfall, for example, snow removal work is carried out by scraping off snow accumulated on the road surface with a wheel loader and transporting it to a required location. In such snow removal work, snow removal work is often carried out with a small wheel loader, and in order to increase work efficiency, a snow removal bucket larger than a normal earth and sand bucket is often used.
[0003]
[Problems to be solved by the invention]
However, in this mini wheel loader, the width of the bucket mounted due to road traffic regulations is generally set to a size of 1.7 m or less, which is generally limited by a small special vehicle, in other words, a size not exceeding 1.7 m. Yes. However, in the middle wheel loader of the mini wheel loader, the width between the outer sides of the tires approaches 1.7m, so there is no difference between the bucket and the vehicle tire width, and the bucket overflowed when pushing snow with the bucket. The tire will step on the snow. For this reason, since the vehicle body is lifted and shakes, the posture of the bucket also fluctuates together with the vehicle body, so that there is a problem that the scraped road surface cannot be properly cleaned and the road surface after snow removal is not clean.
[0004]
Further, when snow is removed from a road or the like, there is a problem that it is difficult to perform work because the tire of a vehicle (mini wheel loader) approaches the bag. For this reason, in order to solve the above-described problem between the bucket and the width between tires of the vehicle, it is the most preferable solution to widen the width of the bucket. Since the bucket having the above width is used, it becomes out of the regulation range of the small special vehicle to become a large special vehicle, which increases the cost in terms of tax for the user.
[0005]
Further, as a related technique, Japanese Patent Application Laid-Open No. 2000-55754 discloses a technique in which an increase plate is attached to a side surface portion of a bucket made to have a predetermined size so as to increase the volume of an existing bucket. . As disclosed in this publication, as shown in FIG. 7, a plurality of additional plates 101 (only one side is shown) are provided on both sides of an existing excavation bucket 100, and a plurality of lower edges 101a are provided. By fastening with the bolt 103, the opening 102 of the bucket 100 can be widened at the same time as it is increased, and the volume can be increased. The increase plate 101 to be attached is formed so as to be widened at the same time as it spreads outward from the outer surface of the bucket 100, and the excavation claw 106 is added side by side to the attachment side of the excavation claw 105 of the bucket 100. In order to facilitate positioning when attaching to the side surface portion of the bucket 100, the engaging pin 107 is attached to the bucket body side, and the notch portion that engages the engaging pin 107 on the increasing plate 101 side. An attachment plate 109 having 108 is provided so that the engagement pin 107 and the notch 108 can be positioned so as to facilitate the fastening with the bolt 103. In addition, a sand retaining plate 110 is attached to the rear end portion of the weight increasing plate 101 so that the sand that has been squeezed in the space spreading on the side of the bucket 100 can be reliably received.
[0006]
The bucket volume increasing device having such a configuration is effective in that the capacity of the existing bucket 100 can be increased to increase the capacity of taking up soil into the bucket during excavation. However, the volume increasing device is fastened by a bolt 103 because it needs to be in a fixed state in order to add a digging function in use, and has a positioning mechanism that facilitates attachment / detachment. A fixed configuration is required and is only effective in the excavation bucket. Therefore, even if such a technique is disclosed, there is a problem in applying this technique as it is to the bucket for snow removal which is the subject of the present application.
[0007]
The present invention has been made in view of the above-described problems, and provides a bucket wing device configured to function in cooperation with a bucket in an optimum state only during snow removal work and not to operate outside the work. It is intended to provide.
[0008]
[Means for solving the problems and actions / effects]
In order to achieve the aforementioned object, a bucket wing device according to the present invention comprises:
Side wing which is pivotally supported to the base on both sides of the bucket, its Re respectively provided so as to protrude before the cutting edge of the bucket,
The side wing is characterized in that a wing portion is provided at a front portion of an intermediate portion connected to the base portion, and a guide piece that is inclined inward is provided at an upper edge of the intermediate portion from the wing portion. It is.
[0009]
According to the present invention, when performing snow removal work by attaching to a work vehicle such as a mini wheel loader, when the snow is pushed into the snow accumulating portion and snow is squeezed into the bucket, both sides of the bucket are positioned forward of the cutting edge. The side wings on both sides provided so as to protrude into the snow can be cut into the snow accumulating portion, so that the snow on the front surface of the bucket can be scraped into the bucket as it is, and snow can be prevented from spilling to the left and right sides when scraping. Therefore, the state of stepping on snow by the tires of the following vehicles can be eliminated, and conventionally the tires step on the snow spilled on the road surface (ground) and the vehicle body tilts and the bucket posture changes at that time. Thus, the fact that the scraping of the snow is irregular and the remaining snow has been generated can be effectively treated by scraping in a correct posture at all times. Moreover, if the posture is adjusted so that the side wing is along the heel, snow on the heel can be removed, and workability can be improved.
[0010]
Further, according to the present invention, since the guide piece inclined inward is provided from the wing portion to the upper edge of the intermediate portion , when the side wing is projected forward, the upper edge of the side wing By enclosing the section from the edge of the bucket to the edge of the side plate with a guide piece, the cut snow can be guided to the inside of the bucket, and the snow squeezed by the advance of the bucket can be prevented from overflowing from the upper side of the side wing and spilling outside. There is an effect that the phenomenon of stepping on snow spilled by the following tire can be surely prevented.
[0011]
In the first invention, the side wings attached to both side surfaces of the bucket may be pivotally supported in a free state at the base (second invention). In this way, even when working with the bucket cutting edge raised during snow removal work, the side wing is displaced by its own weight toward the road surface (ground), which is the work reference plane, and plays a leading role in snow shoveling. And the above-described scraping function can be exhibited regardless of the posture of the cutting edge. In addition, even if a protrusion or the like is present on the road surface and the side wing comes into contact therewith, there is an advantage that the tip can be prevented from being lifted and damaged because it is pivotally supported at the base.
[0012]
Further, the side wings are good to positioning means can be fixed at a plurality of locations within a range that can be rotated with respect to the pivot portion is provided (third invention). In this way, the side wing can be lifted upward and fixed in the retracted position without protruding forward from the cutting edge when working or when the work vehicle is moving, and it is fixed and interferes with other conditions. You can avoid it. In addition, it becomes possible to change the protruding rotation angle of the side wing to cope with the work situation.
[0013]
Further, the side wing is preferably provided so as to be detachable from the side surface of the bucket at the pivotal support ( fourth invention). Further, the side wing is preferably made add-on by attaching a boss to a side plate surface of an existing bucket ( fifth invention). Since the side wing has a structure that can be independently attached to the left and right sides of the bucket, the side wing does not affect the function at the time of operation even if the structure is detachable at the pivotal portion of the base. Therefore, when moving a work vehicle (such as a mini wheel loader) to the work site, it is possible to run and move the vehicle as before, if it is not attached to the bucket and the side wings are attached to remove snow only at the work site. Can do. Moreover, since it can be an add-on structure, it can be easily modified even with a conventional bucket to enhance the snow removal function.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Next, a specific embodiment of a bucket wing device according to the present invention will be described with reference to the drawings.
[0015]
FIG. 1 shows a perspective view of the overall appearance of a mini wheel loader equipped with a bucket provided with the wing device of the present embodiment. 2 is a plan view of a snow removal bucket with side wings attached, FIG. 3 is a side view of the bucket of FIG. 2, and FIG. 4 is an enlarged front view of one side wing (a). The AA view (b) of the front view and the cross-sectional view (c) of the pivot portion are respectively shown.
[0016]
The bucket wing device 10 of this embodiment is mainly mounted on a snow removal bucket (hereinafter simply referred to as a bucket 5), and the bucket 5 is attached to a lift device 2 of a mini wheel loader 1, for example, as shown in FIG. 1. Thus, the snow scraping and scooping work can be effectively performed for snow removal.
[0017]
In the wing device 10 of the bucket 5, side wings 11 and 11 are provided symmetrically outside the bucket side plates 5a and 5a, and when used, the side wings 11 and 11 are attached to the bucket 5 as shown in FIG. It protrudes ahead of the cutting edge 6 attached to the tip edge 5b, and can be rotated upward and stored when not in use.
[0018]
The side wing 11 is made of a steel plate having an appropriate thickness, and the base portion 12 is fitted with the pivot support hole 12a on the shaft portion 7a protruding outward by the boss portion 7 welded to the side plate 5a of the bucket 5. The wing part 13 is supported so as to be able to rotate by being stopped by the presser disk 14 so as to be cut off, and the wing part 13 that functions to cut snow into the bucket opening and at the same time is connected to the base part 12. The distal end portion is bent from the portion 12 ′ so as to be away from the required dimension outward so that it is inside the extension line L of the bent connecting portion 13 a. In addition, the bending connection part 13a of the wing | blade part 13 and intermediate | middle part 12 'is a bucket opening part in the use state, as shown in Fig.4 (a). The bent portion 13c is bent from the lower side to the upper side so as to be substantially along the side edge, and the connecting bent portion 13c with the wing portion 13 is bent so as to be substantially parallel to the connecting side bent portion 13b with the intermediate portion 12 '. In addition, the snow cut by the wing part 13 serves as a guide for guiding the snow to the bucket opening. Further, the upper and lower end corner portions of the wing portion 13 are rounded so as not to be damaged at the time of cutting. Reference numeral 14a in the drawing is a bolt for fixing the presser disk 14 to the shaft portion 7a.
[0019]
The side wing 11 formed in this way is further provided with a guide piece 15 inclined inward at the upper edge of the section from the wing part 13 to the intermediate part 12 'at the upper edge (in use). The lower half of the lower edge is cut to provide a stepped portion 16, and when the stepped portion 16 engages with the protruding piece 5 c protruding from the lower end side portion of the bucket 5, the side wing 11 is prevented from rotating further. It is set as the engaging part.
[0020]
Further, a positioning pin insertion portion 17 as a positioning means is provided at the end of the base 12 of the side wing 11 so as to protrude in the radial direction. The pin insertion portion 17 is provided in parallel to the axis of the shaft portion 7 a (the pivot support hole 12 a) that pivots the base portion 12, and the positioning fixing portion 18 provided on the side plate 5 a of the bucket 5 from the pin insertion portion 17. The side wing 11 can be fixed by screwing the tip of the positioning pin 20 into the positioning screw hole (see FIG. 5).
[0021]
As shown in FIG. 1, the bucket 5 having the wing device 10 configured as described above is attached by connecting the attachment portions 8, 8, 8 a on the back to the operation link in the lift device 2 of the mini wheel loader 1. And used for snow removal. The attachment portions 8, 8, 8a have a known structure.
[0022]
When performing snow removal at the work site, in order to put the wing devices 10 provided on both sides of the bucket 5 into a working state, the side wings 11 are positioned so that their wings 13 face forward. As a result, the tip of the side wing 11, that is, the wing 13 is positioned in front of the cutting edge 6 of the bucket 5 (see FIG. 3). When the bucket 5 is advanced toward the snow to be removed in this state, the wings 13 of the left and right side wings 11, 11 cut into the snow and move forward, so that the snow is cut wider than the opening of the bucket 5. The snow cut by the side wings 11 and 11 is scooped up by the bent connecting portion 13a connected to the wing portion 13 and simultaneously raked into the bucket 5 by the guide piece 15 located on the upper side. As a result, the snow scooped up by the bucket 5 is scraped to a width within the side wings 11, 11 on both sides and is reliably scooped into the bucket 5, so that the tread surface position of the tires 3, 3 of the subsequent mini wheel loader 1 Snow can be removed without spilling.
[0023]
Therefore, since no snow spills occur during snow removal, the vehicle body does not tilt or shake, and snow can be removed in a normal posture, so that the snow removal surface can be treated cleanly. Further, even when removing snow accumulated on the heel, the mounting position of the wing device 10 protrudes in the width direction from the running position of the tire, so if the snow is removed while maintaining this state, no snow remains. Can be removed. In addition, by providing the wing devices 10 on both sides of the bucket, it is natural that the scraping amount can be increased and the working efficiency can be increased.
[0024]
Further, the side wing 11 in the wing device 10 is supported by the shaft portion 7a in a free state with respect to the side plate 5a of the bucket 5 at the base portion 12 on both the left and right sides. When there is unevenness, for example, when it comes into contact with a projection, the foremost wing portion 13 is lifted upward and can be avoided, thus avoiding damage. Therefore, it can be used for long-term use.
[0025]
Further, when the snow removal work is performed with the cutting edge 6 in an upright state, as shown in FIG. 6, the side wing 11 positions the wing part 13 at the tip thereof in the forward direction, and also cuts in snow accumulation. The posture can be maintained. In addition, when the bucket 5 is lifted by the lift device 2 for loading, the side wing 11 hangs down due to the engagement between the step 16 provided at the lower edge of the side wing 11 and the protruding piece 5c on the bucket 5 side. It is blocked and does not interfere with the next work.
[0026]
When the mini wheel loader is moved and moved, the side wing 11 is rotated upward and moved to the storage position as shown by a two-dot chain line in FIG. 6, and then the positioning fixing portion 18 provided on the bucket side portion is positioned. By screwing the tip screw portion 20a of the positioning pin 20 into the screw hole 18a, the screw hole 18a can be fixed and stored at that position. By doing so, the wing device 10 does not function at all during traveling, and thus it can be treated in the same manner as the normal bucket 5. Note that the side wing 11 can be easily removed by unfastening and disassembling the presser disc 14 by the bolt 14a at the shaft portion pivotally supported as necessary.
[0027]
As described above, the wing device 10 of the present embodiment can be effectively attached to the side plate of the snow removal bucket 5 with a simple structure to perform snow removal work effectively. Therefore, the side wing 11 can be mounted by preparing the boss portion 7 having the above-mentioned pivot shaft portion 7a on the side plate of the existing snow removal bucket and welding it to a predetermined position. Can be utilized as a highly functional snow removal bucket.
[0028]
Further, as a positioning means at the time of storing the side wing 11, as shown by chain lines a and a 'in FIG. 6, a pin insertion portion (17) is arranged at an appropriate middle portion of the side wing 11, and the bucket 5 It can also be fixed by providing a fixing portion (18) by a positioning pin on the upper side of the side plate 5a. Furthermore, if necessary, a plurality of fixings are appropriately made on the side plate 5a of the bucket on the side of the base position side of the side wing 11, as shown in FIG. If the fixing block 19 having the screw holes 19a and 19b is provided, the side wing 11 is fixed by the positioning pin 20 with the fixing screw hole at the predetermined rotation angle position, and the wing portion of the side wing 11 is adjusted according to the snow removal work. It is also possible to use the lower end of 13 which is raised from the ground.
[Brief description of the drawings]
FIG. 1 is an overall external perspective view of a mini wheel loader equipped with a bucket provided with a wing device according to the present embodiment.
FIG. 2 is a plan view of a snow removal bucket provided with side wings.
FIG. 3 is a side view of the bucket of FIG. 2;
FIG. 4 is an enlarged front view (a) showing one side wing, an AA view (b) of the front view, and a sectional view (c) of the pivot portion.
5A and 5B are diagrams showing side wing positioning means, in which FIG. 5A is a front view, and FIG. 5B is a cross-sectional view showing a fixed state by positioning pins;
FIG. 6 is a diagram illustrating a usage state in a state where an edge of a bucket is raised and a state in which a side wing is stored.
FIG. 7 is a diagram illustrating an aspect of increasing the bucket capacity according to the prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Mini wheel loader 2 Lifting device 3 Tire 5 Bucket 5a Bucket side 5b Bucket tip 6 Cutting edge 7 Boss part 10 Wing device 11 Side wing 12 Side wing base 12a Pivot hole 13 Wing part 13a Bending joint part 14 Disc 15 Guide piece 16 Step portion 17 Pin insertion portion 18 Positioning fixing portion 19 Fixing block 20 Positioning pin

Claims (5)

Side wing which is pivotally supported to the base on both sides of the bucket, its Re respectively provided so as to protrude before the cutting edge of the bucket,
The side wing is provided with a wing portion at a front portion of an intermediate portion connected to the base portion, and a guide piece inclined inward is provided at an upper edge of the intermediate portion from the wing portion. Wing device.   The bucket wing apparatus according to claim 1, wherein side wings attached to both side surfaces of the bucket are pivotally supported in a free state at a base portion thereof. Wherein the side wing, pivot portion bucket wing according to claim 1 or 2 positioning means can be fixed are provided at a plurality of locations within a range that can be rotated with respect to the. The said side wing is a bucket wing apparatus in any one of Claims 1-3 provided in a pivotal support part with respect to the side part of a bucket. The bucket wing device according to any one of claims 1 to 3 , wherein the side wing is made add-on by attaching a boss to a side plate surface of an existing bucket.

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