JP2004225315A - Snowplow - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a snowplow which enables an auger to efficiently bite into snow and enables the snow to be efficiently destroyed by the auger. <P>SOLUTION: In this snowplow 10, left and right auger shafts 45 and 46 are elongated leftward and rightward from a center; outside, intermediate and inside auger blades 55, 56 and 57 are provided in the respective auger shafts toward the center from the outside in this order, so as to form left and right augers 50 and 51; and the snow, which is destroyed by the augers, is raked together to the center. In the snowplow 10, almost V-shaped notches 141 are formed on the outer peripheries of the respective auger blades at prescribed intervals, so that a plurality of cutting blades 142 can be formed; a part from an edge 143 of the cutting blade to a center 144 thereof is formed in a curved shape so as to serve as a cutting edge 145; the cutting edge is provided with teeth 146 of a saw; and a part from the center of the cutting blade to an end thereof serves as a chipping blade 148 along an outer periphery. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a snow blower in which snow collected by an auger is flipped up by a blower, and the flipped up snow is thrown to a predetermined position by a shooter.
[0002]
[Prior art]
There is a snowplow equipped with an auger as a snowplow for removing snow on a road surface, a parking lot, or the like (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-3-13731 (pages 3-4, FIG. 7)
[0004]
The above Patent Document 1 will be described in detail with reference to the following drawings.
FIG. 16 is a plan view showing a conventional auger device. In addition, the code has been renumbered.
The auger device 200 attaches left and right augers 203 and 204 to left and right auger shafts 201 and 202, respectively.
[0005]
The left auger 203 includes a first auger blade 205 and a second auger blade 206 whose phase is shifted by 180 ° with respect to the first auger blade 205. Further, similarly to the left auger 203, the right auger 204 includes a first auger blade 205 and a second auger blade 206 whose phase is shifted by 180 ° with respect to the first auger blade 205.
[0006]
By rotating the left and right augers 203 and 204 on the left and right auger shafts 201 and 202 as shown by arrows, the snow is broken by two blades of the first and second auger blades 205 and 206, and two broken snow are removed. Are raked up to the center in the vehicle width direction.
By blowing up the collected snow with a blower 207, the snow is thrown to a desired position through a shooter (not shown).
[0007]
[Problems to be solved by the invention]
Here, in order to easily break snow with the auger device 200, a plurality of saw blades are continuously formed on the outer periphery of the first and second auger blades 205 and 206, for example, and the plurality of saw blades are bent. There are things.
However, when a plurality of saw blades are formed by bending the outer circumferences of the first and second auger blades 205 and 206, the bent saw blades are used when the first and second auger blades 205 and 206 are cut into snow. It is difficult to get into the resistance and penetrate the snow efficiently.
[0008]
Therefore, an object of the present invention is to provide a snow remover that can make an auger bit into snow efficiently and that can efficiently break down the snow with the auger.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, claim 1 is to extend the left and right auger shafts from the center in the vehicle width direction to the left and right directions, and to provide the outer auger blades and the intermediate auger from the outer sides of the respective auger shafts toward the center in the vehicle width direction. A blade and an inner auger blade are sequentially provided to form left and right augers, and the auger is rotated about left and right auger axes to break down snow, and in the snow blower that collects the broken snow at the center, A plurality of cutting blades are formed by forming a substantially V-shaped notch at a predetermined interval on the outer periphery, and the cutting edge from the cutting edge to the center is formed in a curved shape to form a cutting blade. Is characterized in that a saw blade is provided, and a portion from the center of the cutting blade to the end of the cutting blade is formed along the outer periphery to form a shaving blade.
[0010]
A plurality of cutting blades were formed by forming substantially V-shaped notches at predetermined intervals on the outer periphery of each auger blade. A plurality of cutting blades are formed on the outer periphery of each auger blade, and the cutting blades are formed into a curved shape from the cutting edge to the center and cut into the cutting edge, so that the cutting edge can be cut into a snow mass or icy hard snow. You can break the snow mass.
In addition, by providing the cutting blade with a saw blade, snow chunks or ice-like hard snow can be crushed by the saw blade.
[0011]
Furthermore, by making the auger bite into the snow efficiently, it is possible to suppress the impact generated when crushing snow chunks or icy hard snow.
Thus, the reaction force generated by the impact can be reduced, and the lifting of the auger can be suppressed.
[0012]
Here, when the auger rises, foreign substances (for example, stones) in the snow tend to move behind the auger, and there is a possibility that the frequency of the foreign substances biting between the auger and the auger housing increases.
Thus, by suppressing the lifting of the auger, it is possible to reduce the biting of foreign substances by the auger. Thereby, deformation and breakage of each auger blade can be prevented, and in addition, the frequency of interrupting the snow removing operation can be reduced.
[0013]
According to a second aspect of the present invention, the cutting blade is curved outward in the width direction, and the rear end of the cutting blade is bent inward in the width direction to form a folded blade.
[0014]
By turning the cutting blade outward in the width direction, when each auger blade is rotated with the left auger shaft, after cutting the snow with the cutting blade or saw blade, the part of the shaving blade excluding the folded blade Can overlap to break the snow.
This makes it possible to eliminate the stripe-shaped snow removal residue when the snow is broken by the cutting blade or the saw blade.
[0015]
In addition, since the rear end of the shaving blade is bent inward in the width direction, after breaking the snow at the part of the shaving blade other than the folded blade, it is possible to continuously break the snow inside the shaved blade with the folded blade. it can.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the accompanying drawings. Here, “front”, “rear”, “left”, and “right” follow the directions viewed from the worker. The drawings should be viewed in the direction of reference numerals.
FIG. 1 is a side view showing a snow blower according to the present invention.
In the snow blower 10, the body 11 is composed of a transmission case, and a traveling electric motor 12 (only the left transmission motor is shown) is attached to the lower left and right sides of the body 11, and the traveling unit 13 is attached to the left and right electric motors 12. The engine is connected to the upper part of the fuselage 11, and an auger device 30 driven by the engine 14 is mounted on the front part of the fuselage 11, and the rear part of the auger device 30 and the engine 14 are covered with a cover 15, and the fuselage 11 The left and right operation handles 16 (only the left operation handle 16 is shown) are extended from the upper part to the rear upper part, and an operation panel 17 is mounted between the left and right operation handles 16 so that the operator can grip the left and right operation handles 16. (Only the left grip 18 is shown.) This is a self-propelled walking type work machine that walks from behind the operation panel 17 while holding the grip.
[0017]
The traveling section 13 includes a left traveling section 20 outside the left driving motor 12 and a right traveling section (not shown) outside the right driving motor (not shown). Note that the right traveling unit has the same configuration as the left traveling unit, and a description thereof will be omitted.
The left traveling unit 20 includes a left driving wheel 21 connected to the left transmission motor 12, a left idle wheel 22 rotatably provided behind the driving wheel 21, and a left driving wheel 21 and an idle wheel 22. The crawler belt 23 is rotated by driving the drive wheels 21 by the drive motor 12 around the left crawler belt 23.
[0018]
According to the snow remover 10, the left and right electric motors 12 rotate the left and right crawler belts 23 of the traveling unit 13 in a state where the auger device 30 is driven by the engine 14. Work can be done.
Hereinafter, the auger device 30 will be described in detail.
[0019]
The auger device 30 is provided with a blower housing 31 at a front portion 11a of the body 11 and an auger housing 35 at a front portion 32 of the blower housing 31, extends a drive shaft 38 forward from the engine 14, and attaches the drive shaft 38 to the blower housing. A power transmission member 43 in which the housing 31 penetrates and extends into the auger housing 35, and a blower 40 arranged in the blower housing 31 is attached to the middle of the drive shaft 38, and the tip 39 of the drive shaft 38 is arranged at the center in the vehicle width direction. (A so-called auger mission), and extend left and right auger shafts 45 and 46 (see FIG. 2 for the right auger shaft 46) from the power transmission member 43 in the left and right direction, respectively. Left and right augers 50 and 51 (see FIG. 2 for the right auger 51) are provided.
[0020]
When the drive shaft 38 is rotated by the engine 14, the blower 40 is rotated by the drive shaft 38, and the left and right auger shafts 45, 46 are rotated via the power transmission member 43. The left and right augers 50 and 51 are rotated.
[0021]
In this state, the snow blower 10 is advanced to make the left and right augers 50 and 51 bite into the snow and break the snow, and the broken snow is moved into the blower housing 31 at the center in the vehicle width direction by the left and right augers 50 and 51. Rake up.
The snow collected in the blower housing 31 is flipped up by the blower 40, and the flipped-up snow is guided by a shooter 53 provided on an upper portion 33 of the blower housing 31 to throw snow at a desired position.
[0022]
FIG. 2 is a perspective view showing an auger device of the snow blower according to the present invention.
The left auger 50 is provided with an outer auger blade 55, an intermediate auger blade 56, and an inner auger blade 57 in order from the outer side toward the center in the vehicle width direction on the left auger shaft 45, and the outer auger blade 55 and the inner auger blade 57 are shared. The arrangement is such that the intermediate auger blade 56 is arranged along a first spiral locus 60 and along a second spiral locus 61 whose phase is shifted from the first spiral locus 60 by almost 180 °.
[0023]
The right auger 51 is shifted from the left auger 50 by about 180 ° in phase, and the outer auger blade 55, the middle auger blade 56, and the inner auger blade are arranged on the right auger shaft 46 from the outside toward the center in the vehicle width direction. 57 are provided in order.
[0024]
The right auger 51 is the same as the left auger 50, except that the phase is shifted by 180 °, and the other configurations are the same. Omitted.
[0025]
By dividing the left auger 50 into an outer auger blade 55, an intermediate auger blade 56, and an inner auger blade 57, the respective auger blades 55, 56, 57 can be formed compact.
Therefore, each of the auger blades 55, 56, 57 can be attached to the auger shaft 45 at one place.
[0026]
An outer support member 64 is attached to an outer portion 63 of the left auger shaft 45, and an outer auger blade 55 is attached to a blade holder 65 of the outer support member 64 by bolts 66, 66 and nuts 67, 67 (the nut 67 is located outside the right auger shaft 46). The left posture stabilizing claw 70 is disposed near the outer auger blade 55 by attaching the left posture stabilizing claw 70 with the bolt 71 and the nut 72 to the claw holder 68 of the outer support member 64 (see the auger blade 55).
[0027]
The left attitude stabilizing claw 70 is arranged with a phase shifted by about 180 ° with respect to the front end 73 of the outer auger blade 55 (see also FIGS. 3 and 4).
Therefore, the left posture stabilizing claw 70 is arranged in phase with the front end 73 of the outer auger blade 55 provided on the right auger shaft 46.
[0028]
The left posture stabilizing claw 70 has a base end 76 disposed on the claw holder 68 of the outer support member 64, an outer bent portion 77 bent outward from the base end 76, and a radius from the outer bent portion 77. An extension 78 extends outward in the direction, and a claw 79 bent inward from the extension 78.
[0029]
The base end portion 76, the outer bent portion 77, and the extension portion 78 are formed with a constant width, and the claw portion 79 is formed with a width slightly smaller than the base end portion 76, the outer bent portion 77, and the extension portion 78. Then, the outer bent portion 77, the extension portion 78, and the claw portion 79 form a substantially U-shape.
Note that the width of the base end portion 76, the outer bent portion 77, the extension portion 78, and the claw portion 79 is not limited to this, and can be appropriately determined.
[0030]
The base end portion 78 of the left posture stabilizing claw 70 is disposed on the claw holder 68, a bolt 71 is passed through the claw holder 68 and the base end portion 78, and a nut 72 (see the right posture stabilizing claw 80 for the nut 72) is passed through the bolt 71. By tightening, the left posture stable claw 70 is attached to the claw holder 68 of the outer support member 64.
By forming a substantially U-shape with the outer bent portion 77, the extension portion 78, and the claw portion 79, the claw portion 79 is substantially the same as the front end portion 73 of the outer auger blade 55 in the vehicle width direction as shown in FIG. It is arranged at the position P.
[0031]
The right posture stabilizing claw 80 is, like the left posture stabilizing claw 70, arranged so as to be out of phase with the front end 73 of the outer auger blade 55 of the right auger shaft 46 by approximately 180 ° (see also FIG. 3).
Therefore, the right posture stabilizing claw 80 is arranged in phase with the front end 73 of the outer auger blade 55 provided on the left auger shaft 45.
Since the right posture stable claw 80 has the same shape as the left posture stable claw 70, each component of the right posture stable claw 80 is assigned the same reference numeral as the left posture stable claw 70, and description thereof is omitted.
[0032]
Thus, the left posture stabilizing claw 70 is in phase with the front end 73 of the outer auger blade 55 provided on the right auger shaft 46, and the right posture stabilizing claw 80 is provided on the outer auger blade 55 provided on the left auger shaft 45. The reason for arranging the front end 73 in phase will be described with reference to FIG.
[0033]
An intermediate support member 83 is attached to an intermediate portion 82 of the left auger shaft 45, and an intermediate auger blade 56 is attached to a blade holder 84 of the intermediate support member 83 with bolts 85, 85 and nuts 86, 86 (see FIG. 8 for the nut 86). .
[0034]
An inner support member 92 is attached to an inner portion 91 of the left auger shaft 45, and an inner auger blade 57 is attached to a blade holder 93 of the inner support member 92 with bolts 94, 94 and nuts 95, 95 (see FIG. 8 for the nut 95). The left driving nail 100 is disposed near the inner auger blade 57 by providing the left driving nail 100 with the bolt 98 and the nut 99 (see FIG. 8 for the nut 99) in the nail holder 97 of the inner support member 92.
[0035]
The left driving claw 100 is arranged with a phase shifted by about 180 ° with respect to the inner auger blade 57 (see also FIGS. 3 and 6), so that the left driving claw 100 is provided at the front end 107 of the inner auger blade 57 provided on the right auger shaft 46. They face each other (see also FIGS. 6 and 8).
[0036]
The left driving claw 100 has a base end 101 disposed on the claw holder 97 of the inner support member 92, and a curved claw 102 bent inwardly from the base end 101 (see also FIGS. 6 and 8). Consists of
The base 101 is formed with a constant width, and the curved claw 102 is formed with a width slightly smaller than the base 101.
Note that the width of the base end portion 101 and the width of the curved claw portion 102 are not limited thereto, and can be appropriately determined.
[0037]
The base portion 101 of the left driving claw 100 is disposed in the claw holder 97, the bolt 103 is passed through the claw holder 97 and the base end portion 101, and the nut 104 is fastened to the bolt 103, so that the left driving claw 100 is supported by the inner support member 92. Attached to the claw holder 97.
[0038]
Like the left driving claw 100, the right driving claw 106 is provided on the left auger shaft 45 by disposing the phase with respect to the inner auger blade 57 of the right auger shaft 46 by approximately 180 ° (see also FIG. 3). This is opposed to the front end 107 of the inner auger blade 57 (see also FIG. 8).
Since the right driving claw 106 has the same shape as the left driving claw 100, the components of the right driving claw 106 are denoted by the same reference numerals as those of the left posture stable claw 70, and description thereof is omitted.
The reason why the left and right driving claws 100 and 106 are configured as described above will be described in detail with reference to FIG.
[0039]
Here, the outer auger blade 55, the middle auger blade 56, and the inner auger blade 57 are members having the same shape.
The outer support member 64, the intermediate support member 83, and the inner support member 92 are members having the same shape.
[0040]
A support member 109 is attached to the inside of the inner support member 92 of the left auger shaft 45 and near the power transmission member 43, and a left snow removing claw 110 is provided on the support member 109, so that the front end 107 of the inner auger blade 57 is provided. Are shifted from each other by a predetermined angle (for example, approximately 30 ° in a counterclockwise direction) (see also FIG. 3).
The predetermined angle of 30 ° can be set arbitrarily.
[0041]
The left snow removing claw 110 has a support member 109 attached to a portion near the power transmission member 43 inside the inner support member 92 of the left auger shaft 45 and bolted to the claw holder 111 of the support member 109.
That is, the left snow removing claw 110 is provided with a base end portion 112 disposed on the claw holder 111, an inner bent portion 113 bent inward from the base end portion 112, and a radially outward direction from the inner bent portion 113. , And a claw 115 bent outward from the extension 114.
[0042]
The base portion 112, the inner bent portion 113, and the extension portion 114 are formed with a constant width, and the claw portion 115 is formed with a width slightly smaller than the base end portion 112, the inner bent portion 113, and the extension portion 114. Then, a substantially U-shape is formed by the inner bent portion 113, the extending portion 114, and the claw portion 115.
Note that the widths of the base end portion 112, the inner bent portion 113, the extension portion 114, and the claw portion 115 are not limited thereto, and can be determined as appropriate.
[0043]
The base end 112 of the left snow removal claw 110 is disposed on the support member 109, a bolt 116 is passed through the claw holder 111 and the base end 112 of the support member 109, and a nut 117 is passed through the bolt 116 (the nut 117 is a right snow removal claw 120. ) To attach the left snow removal claw 110 to the support member 109.
[0044]
At this time, the base end portion 112 of the left snow removal claw 110 is opposed to the left outer wall portion 47 of the power transmission member 43 in a state of being close to the left outer wall portion 47.
Further, by bending the inner bent portion 113 inward from the base end portion 112, the inner bent portion 113 is formed on the outer peripheral wall portion (upper / lower wall portion and front / rear wall portion) 48 of the power transmission member 43. It is made to face the left outer peripheral wall portion 48a.
[0045]
Similar to the left snow removal claw 110, the right snow removal claw 120 has a support member 109 attached to a portion near the power transmission member 43 inside the inner support member 92 of the right auger shaft 45, and the claw holder 111 of the support member 109. It is bolted to.
Since the right snow removal claw 120 has the same shape as the left snow removal claw 110, the components of the right snow removal claw 120 are denoted by the same reference numerals as the left snow removal claw 110, and description thereof is omitted.
[0046]
As described above, the left posture stable claw 70 is in phase with the front end 73 of the outer auger blade 55 provided on the right auger shaft 46, and the right posture stable claw 80 is provided on the outer auger blade 55 provided on the left auger shaft 45. The reason for arranging the front end 73 in phase will be described with reference to FIG.
[0047]
FIG. 3 is a side view showing the auger device of the snow blower according to the present invention.
The auger device 30 is arranged such that the inner auger blade 57 is shifted rearward by 120 ° around the auger axis with respect to the outer auger blade 55, and the intermediate auger blade 56 is shifted rearward by 120 ° around the auger axis with respect to the inner auger blade 57. It has been shifted.
Further, the outer auger blade 55, the middle auger blade 56, and the inner auger blade 57 are formed such that their outer peripheral angles θ are approximately 150 ° as an example.
[0048]
Further, the auger device 30 is configured such that the front end 107 of the inner auger blade 57 overlaps the rear end of the outer auger blade 55 in a side view, and the front end 122 of the intermediate auger blade 56 overlaps the rear end 108 of the inner auger blade 57. And the front end 73 of the outer auger blade 55 is superimposed on the rear end 123 of the intermediate auger blade 56.
[0049]
Therefore, when the auger device 30 is rotated as shown by the arrow to break the snow in the order of the outer auger blade 55, the inner auger blade 57, and the intermediate auger blade 56, the inner auger blade 55 must be closed before completing the avalanche work by the outer auger blade 55. The avalanche work by the auger blade 57 is started.
[0050]
Further, before the avalanche work by the inner auger blade 57 is completed, the avalanche work by the intermediate auger blade 56 is started.
In addition, before the avalanche work by the intermediate auger blade 56 is completed, the avalanche work by the outer auger blade 55 is started.
In this manner, snow can be continuously broken in the order of the outer auger blade 55, the inner auger blade 57, and the intermediate auger blade 56, thereby improving the snow removing workability.
[0051]
FIG. 4 is a side view showing the outer auger blade and the left posture stabilizing claw which constitute the auger device of the snow blower according to the present invention.
The outer support member 64 includes a blade holder 65 for fitting the through hole 125 into the left auger shaft 45, joining the left auger shaft 45 by welding, and attaching the outer auger blade 55, and a claw holder 68 for attaching the left posture stable claw 70. Prepare at a position shifted by approximately 180 °.
[0052]
The outer auger blade 55 is a curved blade whose outer peripheral angle θ is set to approximately 150 ° as an example, and forms a mounting portion 126 on the inner circumferential side of the front end portion 73. Are attached to the blade holder 65 with bolts 66, 66 and nuts 67, 67 (the nut 67 refers to the outer auger blade 55 of the right auger shaft 46 shown in FIG. 2), and the rear end 74 side is a free end. .
[0053]
By attaching the outer auger blade 55 to the blade holder 65 with only one attachment portion 126, the outer auger blade 55, particularly the outer peripheral side, can be elastically deformed to some extent.
The reason why the outer auger blade 55 is elastically deformed will be described later with reference to FIG.
[0054]
The left posture stabilizing claw 70 is attached to the claw holder 68 of the outer support member 64 by attaching a base end portion 76 with a bolt 71 and a nut 72 (for the nut 72, see the right posture stabilizing claw 80 shown in FIG. 2). The claw portion 79 is disposed near a circular arc along the outer periphery of the outer auger blade 55, while being disposed at a position shifted from the front end portion 73 by approximately 180 °.
[0055]
FIG. 5 is a side view showing an intermediate auger blade constituting the auger device of the snow blower according to the present invention.
The intermediate support member 83 is the same member as the outer support member 64 (see FIG. 4), and is attached to the outer support member 64 (see FIG. 3) in a clockwise direction (backward around the left auger shaft 45) by 240 °. It is a thing.
[0056]
The intermediate auger blade 56 is the same member as the outer auger blade 55 (see FIG. 3), and forms a mounting portion 129 on the inner peripheral side of the front end portion 122, and attaches the mounting portion 129 to the blade holder 84 of the intermediate support member 83. It is mounted with bolts 85, 85 and nuts 86, 86 (see FIG. 8 for nuts 86).
Therefore, the middle auger blade 56 is attached to the outer auger blade 55 (refer to FIG. 3) by being shifted backward by 240 ° around the left auger shaft 45.
[0057]
By attaching the intermediate auger blade 56 to the blade holder 84 with only the attachment portion 129, the intermediate auger blade 56, particularly the outer peripheral side, can be elastically deformed to some extent.
The reason why the intermediate auger blade 56 is elastically deformed will be described later with reference to FIG.
[0058]
FIG. 6 is a side view showing the inner auger blade and the left driving claw that constitute the auger device of the snow blower according to the present invention.
The inner support member 92 is the same member as the outer support member 64 (see FIG. 4), and is attached to the outer support member 64 by being shifted clockwise (backward about the left auger shaft 45) by 120 °.
[0059]
The inner auger blade 57 is the same member as the outer auger blade 55 (see FIG. 3), and forms a mounting portion 131 on the inner peripheral side of the front end 107, and attaches the mounting portion 131 to the blade holder 93 of the inner support member 92. It is attached with bolts 94, 94 and nuts 95, 95 (the nut 95 refers to the inner auger blade 57 of the right auger shaft 46 shown in FIG. 2).
Therefore, the inner auger blade 57 is attached to the outer auger blade 55 by being shifted backward by 120 ° around the left auger shaft 45.
[0060]
By attaching the inner auger blade 57 to the blade holder 93 with only the attachment portion 131, the inner auger blade 57, particularly the outer peripheral side, can be elastically deformed to some extent.
The reason why the inner auger blade 57 is elastically deformed will be described later with reference to FIG.
[0061]
The left driving claw 100 is attached to the claw holder 97 of the inner support member 92 with a bolt 98 and a nut 99 (see FIG. 8 for the nut 98), so that the left driving claw 100 is substantially attached to the front end 107 of the inner auger blade 57. It is arranged at a position shifted by 180 °, and the tip of the curved claw portion 102 is arranged near an arc 132 along the outer periphery of the inner auger blade 57.
The arc 132 has the same radius as the arc 127 along the outer periphery of the outer auger blade 55.
[0062]
Here, the right auger 51 (see FIG. 2) is 180 ° out of phase with the left auger 50. Therefore, the left driving claw 100 is disposed so as to face the front end 107 of the inner auger blade 57 (shown by imaginary lines) of the right auger shaft 46.
Accordingly, the snow mass flowing between the left driving claw 100 and the inner auger blade 57 of the right auger shaft 46 can be grasped by the left driving claw 100 and the inner auger blade 57 of the right auger shaft 46 and sent rearward. it can.
[0063]
FIG. 7 is a side view showing the left snow removing claw of the auger device of the snow blower according to the present invention.
The support member 109 is fitted with the through hole 134 in the left auger shaft 45 in a state where the support member 109 is displaced approximately 30 ° counterclockwise (rearward around the left auger shaft 45) with respect to the inner support member 92 (see FIG. 6). It is joined to the auger shaft 45 by welding, and the pair of claw holders 111, 111 are provided at positions shifted by 180 °.
[0064]
The left snow removal claw 110 has a base end 112 attached to one of the pair of claw holders 111 of the support member 109 (the upper claw holder 111 in FIG. 7) with a bolt 116 and a nut 117 (the nut 117 is shown in FIG. 2). (See right snow removing claw 120 shown in the figure), the phase is shifted from the front end 107 of the inner auger blade 57 by a predetermined angle (for example, approximately 30 °), and the tip of the claw 115 Are disposed in the vicinity of an arc 132 along the outer periphery of the inner auger blade 57.
[0065]
According to the left snow removing claw 110, the base end 112 of the left snow removing claw 110 can be opposed to the left outer wall 47 of the power transmission member 43 in a state of being close to the left outer wall 47. The inner bent portion 113 is opposed to the left outer peripheral wall portion 48a of the outer peripheral wall portion 48 of the power transmission member 43 by bending the inner side 113 (see also FIG. 2).
[0066]
FIG. 8 is a plan view showing an auger device for a snow blower according to the present invention.
The auger device 30 includes a left auger 50 on a left auger shaft 45 and a right auger 51 on a right auger shaft 46. The right auger 51 is 180 ° out of phase with the left auger 50.
[0067]
The left auger 50 includes an outer auger blade 55, a middle auger blade 56, and an inner auger blade 57 in order from the outer side of the left auger shaft 45 toward the center in the vehicle width direction.
Similarly to the left auger 50, the right auger 51 includes an outer auger blade 55, a middle auger blade 56, and an inner auger blade 57 in order from the outer side of the left auger shaft 46 toward the center in the vehicle width direction.
[0068]
The outer auger blade 55 and the inner auger blade 57 are arranged along a common first spiral locus 60, and along a second spiral locus 61 whose phase is shifted by approximately 180 ° with respect to the first spiral locus 60. An intermediate auger blade 56 is arranged.
Thus, the first and second spiral blades whose phases are shifted by 180 ° are constituted only by the three members of the outer auger blade 55, the inner auger blade 57, and the intermediate auger blade 56.
Thus, the weight of the auger device 30 can be reduced, so that the output of the auger drive engine (working engine) 37 (see FIG. 1) for rotating the auger device 30 can be suppressed.
[0069]
In the outer auger blade 55 and the inner auger blade 57 arranged along the first spiral locus 60, the rear end portion 74 of the outer auger blade 55 and the front end portion 107 of the inner auger blade 57 are separated by a predetermined distance L in the width direction. A gap 135 was provided with a gap.
The reason why the rear end portion 74 of the outer auger blade 55 and the front end portion 107 of the inner auger blade 57 are arranged with a gap 135 having a predetermined interval L will be described with reference to FIG.
[0070]
Further, the claw portion 79 of the left posture stabilizing claw 70 is disposed at substantially the same position P as the front end 73 of the outer auger blade 55 of the left auger shaft 45 in the vehicle width direction, and the claw portion 79 of the right posture stabilizing claw 80 is It is arranged at a position P substantially the same as the front end 73 of the outer auger blade 55 of the right auger shaft 46 in the vehicle width direction.
Further, the left driving claw 100 faces the front end 107 of the inner auger blade 57 of the right auger shaft 46, and the right driving claw 106 faces the front end 107 of the inner auger blade 57 of the left auger shaft 45.
[0071]
Further, the base end 112 of the left snow removal claw 110 is opposed to the left outer wall 47 of the power transmission member 43 in a state where the base 112 is close to the left outer wall 47, and the inner bent portion 113 is bent inward from the base end 112 to be bent inward. The portion 113 can be opposed to the left outer peripheral wall 48a of the outer peripheral wall 48 of the power transmission member 43.
[0072]
In addition, the base end 112 (see FIG. 2) of the right snow removal claw 120 is opposed to the power transmission member 43 in a state of being close to the right outer wall, and the inner bent portion 113 is bent inward from the base end 112. Thus, the inner bent portion 113 can be opposed to the right outer peripheral wall 48b of the outer peripheral wall 48 of the power transmission member 43.
[0073]
FIG. 9 is a perspective view showing an outer auger blade constituting the auger device of the snow blower according to the present invention. Although the outer auger blade 55 will be described as an example, the intermediate auger blade 56 and the inner auger blade 57 are similarly formed.
[0074]
The outer auger blade 55 is formed with a plurality of (for example, four) cutting blades 142 by forming a plurality (for example, four) of substantially V-shaped notches 141. Are formed in a curved shape from the cutting edge 143 to the center 144 of the cutting blade 142 to form a cutting blade 145, and the cutting blade 145 is provided with (for example, two) saw blades 146a and 146b. A portion from the center 144 of the cutting blade 142 to the cutting edge 148 is formed along the outer periphery 140 as a shaving blade 148, and the cutting blade 148 is curved outward, for example, with a radius R, and the rear end of the shaving blade 148 is inward in the width direction. To form a folded blade 149.
In order to provide the saw blades 146a and 146b on the cutting blade 145, recesses 153 and 153 are formed in the cutting blade 145.
[0075]
The rear end portion 74 of the outer auger blade 55 includes only a portion 151 on the tip side of the cutting blade 145.
The range from the front end 73 to the rear end 74 of the outer auger blade 55 is referred to as a curved reinforcing portion 152 that protrudes outward in the width direction along the outer periphery 140. The provision of the curved reinforcing portion 152 ensures the strength of the outer auger blade 55.
[0076]
A plurality of cutting blades 142 are formed on the outer circumference 140 of the outer auger blade 55, and the front half of the cutting blade 142 is used as a cutting blade 145. The reason why the saw blades 146a and 146b are formed on the cutting blade 145 is shown in FIG. Will be described.
[0077]
FIG. 10 is a plan view showing the outer auger blade constituting the auger device of the snow blower according to the present invention.
As an example, the cutting blade 142 is bent outward with a radius R in the width direction, and the rear end of the cutting blade 148 is bent inward in the width direction to form a folded blade 149.
By cutting the cutting blade 142 outward in the width direction with the radius R, the width of the cutting blade 145 constituting the front half of the cutting blade 142 is set to W1, and the folded blade of the cutting blade 148 forming the second half of the cutting blade 142. The width of the portion 154 excluding 149 is set to W2, and the width of the folding blade 149 is set to W3.
[0078]
In addition, a portion 154 of the shaving blade 148 excluding the folding blade 149 is overlapped with the cutting blade 145 in the front-rear direction, and the folding blade 149 is arranged continuously from the portion 154 inside.
In this manner, the cutting blade 145 overlaps the portion 154 of the shaving blade 148 excluding the folding blade 149 in the front-rear direction, and furthermore, the rear end of the shaving blade 148 is bent inward in the width direction to form the folding blade 149. The reason for this will be described with reference to FIG.
[0079]
In the present embodiment, an example in which the cutting blade 142 is curved in an arc shape with the radius R outward in the width direction has been described. However, the shape of the curve is not limited to the arc shape, and the cutting blade 142 may be formed in any shape. Is possible.
[0080]
Next, the operation of the snow blower will be described with reference to FIGS.
FIGS. 11A to 11C are first operation explanatory diagrams showing the operation of the snow blower according to the present invention, and schematically show an outer auger blade 55, an intermediate auger blade 56, and an inner auger blade 57.
As shown in (a), the outer auger blade 55 and the inner auger blade 57 are arranged along a common first spiral locus 60, and the phase is shifted by approximately 180 ° with respect to the first spiral locus 60. The intermediate auger blade 56 was arranged along the second spiral locus 61.
[0081]
When the left auger 50 is rotated by the left auger shaft 45 as indicated by the arrow (1), and the snow 155 is broken by the outer auger blade 55, the snow 155 is also broken by the middle auger blade 56 at the same time.
Also, the snow body 156 broken by the outer auger blade 55 is sent along the outer auger blade 55 as shown by an arrow {circle around (2)}.
[0082]
In (b), the left auger 50 is rotated by 90 ° in the direction of arrow (1) with the left auger shaft 45. While the snow 155 is continuously broken by the outer auger blade 55, the snow body 156 sent to the middle of the outer auger blade 55 is moved along the outer auger blade 55 along the rear end of the outer auger blade 55 as shown by an arrow (3). The sheet is continuously sent to a position P1 corresponding to 74.
[0083]
In (c), the left auger 50 is rotated 180 ° in the direction of arrow (1) on the left auger shaft. The operation of breaking the snow 155 with the outer auger blade 55 is completed, and the snow 155 is broken with the inner auger blade 57.
On the other hand, the snow body 156 sent to the position P1 by the outer auger blade 55 is received by the intermediate auger blade 56, and is sent along the intermediate auger blade 56 as shown by an arrow (4).
[0084]
FIGS. 12A to 12C are second operation explanatory views showing the operation of the snow blower according to the present invention, and schematically show an outer auger blade 55, an intermediate auger blade 56, and an inner auger blade 57.
In (a), the left auger 50 is rotated 270 ° in the direction of arrow (1) by the left auger shaft 45. While the inner auger blade 57 continuously breaks the snow 155, the middle auger blade 56 also breaks the snow 155.
On the other hand, the snow body 156 sent to the middle of the middle auger blade 56 is continuously sent along the middle auger blade 56 in the direction of the rear end 123 of the middle auger blade 56 as shown by an arrow (5).
Continuously to the position P2 corresponding to.
[0085]
In (b), the left auger shaft 45 rotates the left auger 50 by 360 ° in the direction of arrow (1). The work of breaking the snow 155 with the inner auger blade 57 is completed, and the snow 155 is broken with the middle auger blade 56.
On the other hand, the snow body 156 sent by the intermediate auger blade 56 reaches the position P2 corresponding to the rear end 123 of the intermediate auger blade 56.
[0086]
In (c), the left auger 50 is rotated by 450 degrees in the direction of arrow (1) with the left auger shaft 45. The work of breaking the snow 155 with the intermediate auger blade 56 is completed, and the snow 155 is broken with the outer auger blade 55.
On the other hand, the snow sent to the position P2 (see (b)) by the intermediate auger blade 56 is received by the inner auger blade 57 and sent along the inner auger blade 57 as shown by an arrow (6).
[0087]
Thus, the snow body 156 broken by the outer auger blade 55 can be sent to the inner auger blade 57 via the intermediate auger blade 56, and can be collected by the inner auger blade 57 to the blower housing 31 at the center in the vehicle width direction.
Further, the outer auger blade 55 and the inner auger blade 57 are arranged along a common first spiral locus 60 (see FIG. 11A), and are arranged along a second spiral locus 61 (see FIG. 11A). Since the middle auger blade 56 is arranged by using the outer auger blade 55 and the inner auger blade 57, the snow 155 can be broken by the middle auger blade 56 at the same time as the snow 155 can be broken by the outer auger blade 55 and the inner auger blade 57. be able to.
[0088]
FIGS. 13A and 13B are third operation explanatory diagrams showing the operation of the snow blower according to the present invention.
The left auger shaft 45 rotates the left auger 50 as indicated by an arrow a, and the right auger shaft 46 rotates the right auger 51 as indicated by an arrow a. The left and right driving claws 100 and 106 are rotated in the direction of the arrow a in the same manner as the left and right augers 50 and 51, and bite into the snow 155.
[0089]
Therefore, the snow clump in the snow 155 can be crushed by the impact force when the left and right driving claws 100 and 106 bite into the snow 155, and the snow 155 can be efficiently broken.
Furthermore, by making the left and right driving claws 100 and 106 bite into the snow 155, the left and right driving claws 100 and 106 serve as anchors, and the left and right augers 50 and 51 can be prevented from floating.
[0090]
In addition, the left driving claw 100 is disposed so as to face the front end 107 of the inner auger blade 57 provided on the right auger shaft 46, and the right driving claw 106 is provided on the inner auger blade 57 provided on the left auger shaft 45. It was arranged to face the front end 107.
Therefore, the left snow claw 100 and the inner auger blade 57 of the right auger shaft 46 grip the snow lump 157 in front of the power transmission member 43 arranged at the center in the vehicle width direction and send it backward as shown by the arrow b. It can be gripped by the driving claw 106 and the inner auger blade 57 of the left auger shaft 45 and fed backward as indicated by an arrow b.
[0091]
In addition, as described with reference to FIGS. 11 to 12, the left and right augers 50 and 51 scrape the snow 158 in front of the power transmitting member 43 (for convenience, the sign of the snow chunk 157 described above is replaced with “scratched snow”). ") And the inner auger blade 57 of the right auger shaft 46 are gripped by the left driving claw 100 and the inner auger blade 57 as shown by the arrow b. And can be sent backward as indicated by arrow b.
[0092]
Here, since the blower 40 (see FIG. 1) is provided at the center in the vehicle width direction behind the left and right augers 50 and 51, the snow lump 157 at the center in the vehicle width direction and the snow 158 collected at the center are efficiently supplied to the blower 40. It can be sent well and the snow removal workability can be improved.
[0093]
Also, the left auger 50 is divided into three parts, an outer auger blade 55, a middle auger blade 56, and an inner auger blade 57, and the right auger 51 is divided into three parts, an outer auger blade 55, a middle auger blade 56, and an inner auger blade 57. did.
Therefore, each of the auger blades 55, 56, 57 can be formed compactly and attached to the auger shaft 45 at only one of the support members 64, 83, 92.
[0094]
Thus, for example, when a foreign substance 160 such as a stone enters the gap 136 between the outer auger blade 55 and the auger housing 35, the outer auger blade 55 can be elastically deformed.
Therefore, the invading foreign matter 160 can escape from between the outer auger blade 55 and the auger housing 35 with the left and right augers 50 and 51 kept rotating.
[0095]
Further, the intermediate auger blade 56 and the inner auger blade 57 can release the foreign matter 160 like the outer auger blade 55.
Therefore, it is possible to prevent the foreign matter 160 from being caught in the gaps 136, 137, 138 between the respective auger blades 55, 56, 57 and the auger housing 35.
[0096]
Also, in the unlikely event that the foreign matter 160 is caught in the gaps 136, 137, 138 between the respective auger blades 55, 56, 57 and the auger housing 35, the worker elastically deforms the auger blades 55, 56, 57. The foreign material 160 that has been bitten can be easily removed.
As a result, it is possible to save the trouble of removing the foreign matter 160 that has been stuck, and to increase the operation rate of the auger device 30 to improve the snow removal workability.
[0097]
In addition, the rear end portion 74 of the outer auger blade 55 and the front end portion 107 of the inner auger blade 57 are arranged with a gap 135 at a predetermined interval L in the width direction.
Therefore, even when the foreign matter 160 enters the gap 136 between the outer auger blade 55 and the auger housing 35 or the gap 137 between the inner auger blade 57 and the auger housing 35, the foreign matter 160 that has entered the outer auger blade 55 is removed. Can be prevented from getting out of the gap 135 between the rear end portion 74 and the front end portion 107 of the inner auger blade 57 and biting the foreign matter 160.
[0098]
FIGS. 14A and 14B are fourth operation explanatory diagrams showing the operation of the snow blower according to the present invention.
A plurality of cutting blades 142... Are formed on the outer periphery 140 of the outer auger blade 55, and the cutting edge 143 to the center 144 of the cutting blade 142 are formed in a curved shape to form a cutting blade 145.
Therefore, by rotating the outer auger blade 55 with the left auger shaft 45 as shown by the arrow a, the cutting blade 145 can be cut into the snow (especially, snow mass) 155 and the snow 155 can be broken.
[0099]
Further, the cutting blade 145 is provided with saw blades 146a and 146b. Therefore, when the cutting blade 145 is cut into the snow 155, the snow (especially snow mass or icy hard snow) 155 can be crushed by the saw blades 146a and 146b.
[0100]
In addition, as an example, the cutting blade 142 is bent outward in the width direction at the radius R, and the folded blade 149 is formed by bending the rear end of the cutting blade 148 inward in the width direction.
Therefore, by rotating the outer auger blade 55 with the left auger shaft 45 as shown by the arrow a, the snow 155 is broken by the cutting blade 145 and the saw blades 146a and 146b as shown by the arrow c.
[0101]
After the snow 155 is cut by the cutting blade 145 and the saw blades 146a and 146b, the portion 154 of the shaving blade 148 excluding the folded blade 149 is overlapped with the broken position to break the snow 155 as indicated by an arrow d.
Thereby, the strip-shaped snow removal residue generated when the snow 155 is broken by the cutting blade 145 or the saw blades 146a and 146b can be broken and removed by the shaving blade 154 excluding the folding blade 149. Therefore, it is possible to improve the snow removal performance by eliminating the stripe-shaped snow removal residue.
[0102]
In addition, the rear end of the shaving blade 148 is bent inward in the width direction to form the folded blade 149, so that the snow 155 is broken at the portion 154 excluding the folded blade 149 as indicated by an arrow d, and the inside of the snow 155 is removed. Is continuously broken by the folding blade 149 as shown by an arrow e.
As described above, by continuously breaking the snow 155, the snow 155 can be efficiently broken by the folded blade 149.
[0103]
In the present embodiment, an example is described in which only the portion 154 of the shaving blade 148 excluding the folded blade 149 is overlapped with the cutting blade 145. However, the present invention is not limited to this. It is also possible to form both the folded blade 149 and the portion 154 of the shaving blade 148 excluding the folded blade 149 so as to overlap.
[0104]
FIG. 15 is a fifth operation explanatory view showing the operation of the snow blower according to the present invention.
The left posture stabilizing claw 70 is in phase with the front end 73 of the outer auger blade 55 provided on the right auger shaft 46, and the right posture stabilizing claw 80 is fitted on the front end 73 of the outer auger blade 55 provided on the left auger shaft 45. They were arranged in phase.
[0105]
Therefore, by rotating the left and right augers 50 and 51 with the left and right auger shafts 45 and 46 as shown by the arrow a, the front end 73 of the outer auger blade 55 of the right auger shaft 46 is cut into the snow 155 to break the snow 155. At the same time, the left posture stable claw 70 can be made to bite into the snow 155 at the same time.
Further, when the front end 73 of the outer auger blade 55 of the left auger shaft 45 is cut into the snow 155 to break the snow 155, the right posture stable claw 80 can be simultaneously cut into the snow 155.
[0106]
As a result, the front end portion 73 of the outer auger blade 55 provided on the left auger shaft 45 causes the right posture stabilizing claw 80 to generate a reaction force having substantially the same magnitude as the reaction force generated when biting into the snow 155.
In addition, the front end portion 73 of the outer auger blade 55 of the right auger shaft 46 causes the left posture stabilizing claw 70 to generate a reaction force having substantially the same magnitude as the reaction force generated when biting into the snow 155.
Therefore, the balance of the reaction force generated between the left and right augers 50 and 51 can be maintained, and the posture of the auger device 30 can be stabilized.
[0107]
Note that the left and right posture stabilizing claws 70, 80 crush the snow chunks in the snow 155 by the impact force when the claws 79, 79 provided at the respective tips bite into the snow 155, and efficiently convert the snow 155. It can serve as a driving claw that breaks down and further prevents the left and right augers 50 and 51 from lifting up.
[0108]
Further, the base end 112 of the left snow removing claw 110 is opposed to the vicinity of the left outer wall 47 of the power transmission member 43, and the inner bent portion 113 is formed on the left outer peripheral wall of the outer peripheral wall 48 of the power transmission member 43. It was made to face the vicinity of the portion 48a.
Further, the base end 112 of the right snow removal claw 120 is opposed to the vicinity of the right outer wall 49 (see also FIG. 8) of the power transmission member 43, and the inner bent portion 113 is connected to the outer peripheral wall 48 of the power transmission member 43. Out of the right outer peripheral wall portion 48b.
[0109]
Therefore, by rotating the left and right augers 50 and 51 with the left and right auger shafts 45 and 46 as indicated by the arrow a, the left snow removing claw 110 causes the left half of the outer wall 44 of the power transmission member 43 (ie, the left wall). The snow accumulated on the left outer peripheral wall portion 48a) of the portion 47 and the outer peripheral wall portion 48 can be removed.
[0110]
Further, the right snow removing claw 120 removes snow accumulated on the right half of the outer wall 44 of the power transmission member 43 (that is, the right outer peripheral wall 48b of the right wall 49 and the outer peripheral wall 48). (The right side wall 49 is shown in FIG. 8).
This prevents snow from accumulating on the outer wall 44 of the power transmission member 43, and collects the snow collected by the left and right augers 50 and 51 in the center in the vehicle width direction and blowers 40 behind the left and right augers 50 and 51 (see FIG. 1). ) Can be sent efficiently to increase snow removal efficiency.
[0111]
Further, by preventing snow from accumulating on the outer wall 44 of the power transmission member 43, it is possible to prevent the accumulated snow from hindering rotation of the left and right augers 50 and 51.
In addition, by preventing snow from accumulating on the outer wall 44 of the power transmission member 43, it is possible to prevent the accumulated snow from hindering the advancement of the auger device 30.
In this way, the rotation of the left and right augers 50 and 51 and the forward movement of the auger device 30 are not hindered, so that the left and right augers 50 and 51 can bite into the snow surface and the snow removal efficiency is increased. be able to.
[0112]
Note that the left and right snow removing claws 110 and 120 crush the snow chunks in the snow 155 by the impact force when the claws 115 and 115 provided at the respective tips bite into the snow 155, and efficiently convert the snow 155. It can also play a role of breaking down, and can also play a role of preventing the left and right augers 50 and 51 from lifting up.
[0113]
In the above-described embodiment, an example in which the left and right posture stabilizing claws 70 and 80 are formed in a substantially U-shape by the outer bent portion 77, the extension portion 78, and the claw portion 79 has been described. Can be formed in an arbitrary shape.
[0114]
Further, in the above-described embodiment, an example in which the left and right driving claws 100 and 106 are formed in a curved shape by the curved claw portions 102 and 102 has been described. However, the present invention is not limited thereto. Can be formed.
[0115]
Further, in the above-described embodiment, the example in which the left and right snow removing claws 110 and 120 are formed in a substantially U-shape by the inner bent portion 113, the extension portion 114, and the claw portion 115 is described. Can be formed in any shape.
[0116]
Further, in the above-described embodiment, a left driving claw 100 is provided near the inner auger blade 57 of the left auger shaft 45 with a phase shift with respect to the inner auger blade 57, and is provided near the inner auger blade 57 of the right auger shaft 46. Although the example in which the right driving claw 106 is provided with the phase shifted from the inner auger blade 57 has been described, the left driving claw 100 is provided at an arbitrary position of the left auger shaft 45, and the optional It is also possible to provide a right driving claw 106 at the position.
[0117]
【The invention's effect】
The present invention has the following effects by the above configuration.
In claim 1, a plurality of cutting blades are formed by forming substantially V-shaped notches at predetermined intervals on the outer periphery of each auger blade. A plurality of cutting blades are formed on the outer periphery of each auger blade, and the cutting blades are formed into a curved shape from the cutting edge to the center and cut into the cutting edge, so that the cutting edge can be cut into a snow mass or icy hard snow. You can break the snow mass.
[0118]
In addition, by providing the cutting blade with a saw blade, snow chunks or ice-like hard snow can be crushed by the saw blade.
Therefore, the auger can be efficiently bitten into the snow, and the auger can efficiently break the snow.
Furthermore, by making the auger bite into the snow efficiently, it is possible to suppress the impact generated when crushing snow chunks or icy hard snow. Thus, the reaction force generated by the impact can be reduced, and the lifting of the auger can be suppressed.
[0119]
Here, when the auger rises, foreign substances (for example, stones) in the snow tend to move behind the auger, and there is a possibility that the frequency of the foreign substances biting between the auger and the auger housing increases.
Thus, by suppressing the lifting of the auger, it is possible to reduce the biting of foreign substances by the auger.
[0120]
Thereby, the deformation and breakage of each auger blade can be prevented, and the durability can be improved.
In addition, by reducing the biting of foreign substances by the auger, the interruption of the snow removing operation can be reduced, and the workability can be improved.
[0121]
According to the second aspect, by bending the cutting blade outward in the width direction, when each auger blade is rotated on the left auger shaft, the snow is broken by the cutting blade or the saw blade, and then the turning of the shaving blade is performed. The parts except the blades can be overlapped to break the snow.
Thereby, when snow has been broken by the cutting blade or the saw blade, the strip-shaped snow removal residue can be eliminated and the snow removal performance can be improved.
[0122]
In addition, since the rear end of the shaving blade is bent inward in the width direction, after breaking the snow at the part of the shaving blade other than the folded blade, it is possible to continuously break the snow inside the shaved blade with the folded blade. it can. As described above, by continuously breaking snow, the folded blade can efficiently break snow.
[Brief description of the drawings]
FIG. 1 is a side view showing a snow blower according to the present invention.
FIG. 2 is a perspective view showing an auger device of the snow blower according to the present invention.
FIG. 3 is a side view showing an auger device of the snow blower according to the present invention.
FIG. 4 is a side view showing an outer auger blade and a left attitude stabilizing claw constituting an auger device of a snow blower according to the present invention.
FIG. 5 is a side view showing an intermediate auger blade constituting the auger device of the snow blower according to the present invention.
FIG. 6 is a side view showing an inner auger blade and a left driving claw constituting an auger device of a snow blower according to the present invention.
FIG. 7 is a side view showing a left snow removing claw of the auger device of the snow blower according to the present invention.
FIG. 8 is a plan view showing an auger device of a snow blower according to the present invention.
FIG. 9 is a perspective view showing an outer auger blade constituting the auger device of the snow blower according to the present invention.
FIG. 10 is a plan view showing an outer auger blade constituting the auger device of the snow blower according to the present invention.
FIG. 11 is a first operation explanatory view showing the operation of the snow blower according to the present invention.
FIG. 12 is a second operation explanatory view showing the operation of the snow blower according to the present invention.
FIG. 13 is a third operation explanatory view showing the operation of the snow blower according to the present invention.
FIG. 14 is a fourth operation explanatory view showing the operation of the snow blower according to the present invention.
FIG. 15 is a fifth operation explanatory view showing the operation of the snow blower according to the present invention.
FIG. 16 is a plan view showing a conventional auger device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Snow blower, 30 ... Auger device, 40 ... Blower, 45 ... Left auger shaft, 46 ... Right auger shaft, 50 ... Left auger, 51 ... Right auger, 55 ... Outer auger blade, 56 ... Middle auger blade, 57: inside auger blade, 141: substantially V-shaped notch, 142: cutting blade, 143: cutting edge of cutting blade, 144: center of cutting blade, 145: cutting blade, 146: saw blade, 147: blade of cutting blade End: 140: outer circumference, 148: shaving blade, 149: folding blade, 155: snow.

Claims (2)

The left and right auger shafts extend from the center in the vehicle width direction to the left and right directions, and outer auger blades, intermediate auger blades, and inner auger blades are sequentially provided on the respective auger shafts from the outside toward the center in the vehicle width direction, and the left and right auger blades are provided. Is formed, and by rotating these augers on the left and right auger axes, the snow is broken, and in the snow removing machine which collects the broken snow in the center,
Forming a plurality of cutting blades by forming substantially V-shaped notches at predetermined intervals on the outer periphery of each of the auger blades,
Along with forming the cutting edge from the cutting edge to the center of the cutting blade into a curved shape, the cutting blade is provided with a saw blade,
A snow removal machine characterized in that a shaving blade is formed along the outer periphery from the center of the cutting blade to the end of the cutting blade. The snow plow according to claim 1, wherein the cutting blade is curved outward in the width direction, and a rear end of the shaving blade is bent inward in the width direction to form a folded blade.

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