JP4316244B2 - snowblower - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a snow remover that jumps up snow collected by an auger with a blower and throws the jumped snow up to a predetermined position with a shooter.
[0002]
[Prior art]
There is a snow remover equipped with an auger as a means for removing snow on a road surface or a parking lot (see, for example, Patent Document 1).
In addition, there is an auger divided (for example, see Patent Document 2).
[0003]
[Patent Document 1]
JP-A-3-137311 (page 3-4, FIG. 7)
[Patent Document 2]
JP-A-63-513 (page 3, Fig. 2)
[0004]
The above Patent Document 1 will be described in detail with reference to the following figure.
FIG. 16 is a plan view showing a conventional auger apparatus. The code was reassigned.
The auger apparatus 200 attaches the left and right augers 203 and 204 to the 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, like 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 with the left and right auger shafts 201 and 202 as shown by the arrows, the two blades of the first and second auger blades 205 and 206 break down the snow, and two pieces of the broken snow are removed. The blades 205 and 206 are scraped to the center in the vehicle width direction.
The scraped snow is spun up by the blower 207, so that it is thrown into a desired position through a shooter (not shown).
[0007]
In the auger device disclosed in Patent Document 1, the first auger blade 205 is a long object in which a spiral is continued for one pitch, and the second auger blade 206 is also a long object in which a spiral is continued for one pitch. Therefore, it is necessary to firmly fix the first and second auger blades 205 and 206 to the left and right auger shafts 201 and 202 at a plurality of locations.
[0008]
Therefore, when a foreign object such as a stone has entered the snow, the frequency of the foreign object 208 biting into the gap 210 between the first and second auger blades 205 and 206 and the auger housing 209 is high.
When the foreign object 208 is bitten in the gap 210, it is necessary to remove the bited foreign substance 208 from the gap 210, which places a burden on the operator.
[0009]
Therefore, in the above-mentioned Patent Document 2, the auger blade is divided into three parts, and each auger blade is attached to the auger shaft at one place, so that the auger blade can be elastically deformed to some extent.
As a result, in the unlikely event that foreign matter is caught between the auger blade and the auger housing, the auger blade is elastically deformed and the caught foreign matter can be removed from the gap.
[0010]
[Problems to be solved by the invention]
However, the auger blade of Patent Document 2 is attached to the left and right auger shafts with a phase shifted by 180 °.
Therefore, for example, when the outermost portion of the left auger is bitten into snow, the outermost portion of the right auger is not bitten into snow, which may affect the straightness of the auger.
[0011]
Accordingly, an object of the present invention is to provide a snowplow that can keep the straightness of the auger good.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, the left and right auger shafts are extended from the center in the vehicle width direction to the left and right directions, respectively, and the outer auger blades and intermediate augers are extended from the outside toward the center in the vehicle width direction. In a snow remover that forms blades and inner auger blades in order to form left and right augers, breaks snow by rotating these augers on the left and right auger shafts, and scrapes the broken snow into the center. The phase is shifted by approximately 180 °, the outer auger blade of the left auger shaft is formed in a curved shape in side view, the front end portion of the outer auger blade is attached to the left auger shaft and the rear end portion is a free end, By shifting the phase by 180 ° with respect to the front end portion of the outer auger blade in the vicinity of the outer auger blade of the left auger shaft, A left posture stabilizing claw is provided in phase with the front end of the blade , the outer auger blade of the right auger shaft is formed in a curved shape in side view, and the front end of the outer auger blade is attached to the right auger shaft and the rear end The phase is adjusted to the front end of the outer auger blade of the left auger shaft by shifting the phase by 180 ° with respect to the front end of the outer auger blade in the vicinity of the outer auger blade of the right auger shaft. by providing a right posture stabilization nail causes bite into the snow the right posture stabilization nail when breaking the snow at the front end of the outer auger blade in the left auger shaft, when breaking the snow at the front end of the outer auger blade in the right auger shaft The left posture stabilizing claw is inserted into the snow to stabilize the posture of the left and right augers.
[0013]
In the vicinity of the outer auger blade of the left auger shaft, a left posture stabilizing claw is provided in phase with the outer auger blade of the right auger shaft, and the phase of the outer auger blade of the left auger shaft is adjusted in the vicinity of the outer auger blade of the right auger shaft. In addition, a right posture stabilizing claw was provided.
Therefore, when the outer auger blade of the right auger shaft is sunk into the snow, the left posture stabilizing claw is sunk into the snow, and when the outer auger blade of the left auger shaft is sunk into the snow, the right posture stabilizing claw is sunk into the snow. Can be bitten.
[0014]
As a result, a reaction force that is approximately the same as the reaction force generated when the outer auger blade of the left auger shaft bites into the snow is generated in the right posture stabilizing claw, and the outer auger blade of the right auger shaft bites into the snow. The balance of reaction forces generated in the left and right augers can be maintained by generating a reaction force of substantially the same magnitude as the reaction force generated in the left posture stabilizing claw.
According to a second aspect of the present invention, the left posture stabilizing claw is provided with a claw portion that digs into snow at the tip, and the claw portion is disposed at substantially the same position as the front end portion of the outer auger blade of the left auger shaft in the vehicle width direction. The right posture stabilizing claw is provided with a claw portion that penetrates into snow at the tip, and the claw portion is arranged at substantially the same position as the front end portion of the outer auger blade of the right auger shaft in the vehicle width direction. To do.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, “front”, “back”, “left”, and “right” follow the direction as viewed from the operator. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a side view showing a snowplow according to the present invention.
In the snowplow 10, the machine body 11 is constituted by a transmission case, a traveling electric motor 12 (only the left transmission motor is shown) is attached to the lower left and right sides of the machine body 11, and the traveling unit 13 is attached to the left and right electric motors 12. The snow removing engine 14 is attached to the upper part of the machine body 11, the auger device 30 driven by the engine 14 is attached to the front part of the machine body 11, and the rear part of the auger apparatus 30 and the engine 14 are covered with the cover 15. 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 attached between the left and right operation handles 16 so that the operator can grip 18 of the left and right operation handles 16. This is a self-propelled walking type working machine that is taken from behind the operation panel 17 while holding the grip (only the left grip 18 is shown).
[0016]
The travel unit 13 includes a left travel unit 20 outside the left drive motor 12 and a right travel unit (not shown) outside the right drive motor (not shown). In addition, since the right side traveling unit has the same configuration as the left side traveling unit, the description thereof is omitted.
The left traveling unit 20 includes a left drive wheel 21 connected to the left transmission motor 12, and a left idler wheel 22 is rotatably provided behind the drive wheel 21, and the left drive wheel 21 and idler wheel 22 are connected to each other. The crawler belt 23 is rotated by winding the left crawler belt 23 and driving the drive wheels 21 by the drive motor 12.
[0017]
According to the snow remover 10, the left and right crawler belts 23 of the running unit 13 are rotated by the left and right electric motors 12 while the auger device 30 is driven by the engine 14, thereby removing the snow while the snow remover 10 is running. You can do the work.
Hereinafter, the auger device 30 will be described in detail.
[0018]
The auger device 30 is provided with a blower housing 31 at the front portion 11a of the airframe 11 and an auger housing 35 at the front portion 32 of the blower housing 31. The drive shaft 38 extends forward from the engine 14, and the drive shaft 38 is connected to the blower. A power transmission member 43 that extends through the auger housing 35 through the housing 31, attaches a blower 40 disposed in the blower housing 31 in the middle of the drive shaft 38, and disposes the tip 39 of the drive shaft 38 in the center in the vehicle width direction. The left and right auger shafts 45 and 46 (see FIG. 2 for the right auger shaft 46) are extended from the power transmission member 43 in the left-right direction, and are connected to the auger shafts 45 and 46, respectively. Left and right augers 50 and 51 (see FIG. 2 for the right auger 51) are provided.
[0019]
By rotating the drive shaft 38 by the engine 14, the blower 40 is rotated by the drive shaft 38, and the left and right auger shafts 45 and 46 are rotated via the power transmission member 43, and the left and right auger shafts 45 and 46 are respectively rotated. The left and right augers 50 and 51 are rotated.
[0020]
In this state, the snow remover 10 is moved forward to cause the left and right augers 50 and 51 to bite into the snow to 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 scraped up in the blower housing 31 is spun up by the blower 40, and the snow that has been spun up is guided by a shooter 53 provided on the upper portion 33 of the blower housing 31 and thrown into a desired position.
[0021]
FIG. 2 is a perspective view showing an auger device of a snowplow 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 this order from the outside toward the center in the vehicle width direction on the left auger shaft 45. The intermediate auger blade 56 is arranged along a second spiral locus 61 which is arranged along the first spiral locus 60 and whose phase is shifted by approximately 180 ° with respect to the first spiral locus 60.
[0022]
The right auger 51 has a phase shifted by approximately 180 ° with respect to the left auger 50, and the outer auger blade 55, the intermediate auger blade 56, and the inner auger blade are directed to the right auger shaft 46 from the outside toward the center in the vehicle width direction. 57 are provided in order.
[0023]
Note that the right auger 51 is only 180 ° out of phase with the left auger 50 and the other configurations are the same. Omitted.
[0024]
By dividing the left auger 50 into an outer auger blade 55, an intermediate auger blade 56, and an inner auger blade 57, each auger blade 55, 56, 57 can be formed compactly.
Therefore, each auger blade 55, 56, 57 can be attached to the auger shaft 45 at one place.
[0025]
An outer support member 64 is attached to the outer portion 63 of the left auger shaft 45, and the outer auger blade 55 is attached to the blade holder 65 of the outer support member 64 with bolts 66, 66 and nuts 67, 67 (the nut 67 is outside the right auger shaft 46. The left posture stabilizing claw 70 is disposed in the vicinity of the outer auger blade 55 by attaching the left posture stabilizing claw 70 to the claw holder 68 of the outer support member 64 with bolts 71 and nuts 72.
[0026]
The left posture stabilizing claw 70 is arranged with a phase shifted by approximately 180 ° with respect to the front end portion 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 portion 73 of the outer auger blade 55 provided on the right auger shaft 46.
[0027]
The left posture stabilizing claw 70 includes a base end portion 76 disposed on the claw holder 68 of the outer support member 64, an outer bent portion 77 bent outward from the base end portion 76, and a radius from the outer bent portion 77. It consists of an extension part 78 extending outward in the direction and a claw part 79 bent inward from the extension part 78.
[0028]
The base end portion 76, the outer bent portion 77, and the extended portion 78 are formed with a constant width, and the claw portion 79 is formed with a slightly narrower width than the base end portion 76, the outer bent portion 77, and the extended portion 78. The outer bent portion 77, the extended portion 78, and the claw portion 79 form a substantially U shape.
In addition, the width | variety of the base end part 76, the outer bending part 77, the extension part 78, and the nail | claw part 79 is not limited to this, It can determine suitably.
[0029]
The base end portion 78 of the left posture stabilizing claw 70 is disposed in the claw holder 68, the bolt 71 is passed through the claw holder 68 and the base end portion 78, and a nut 72 (refer to the right posture stabilizing claw 80 for the nut 72). The left posture stabilizing claw 70 is attached to the claw holder 68 of the outer support member 64 by tightening.
By forming a substantially U-shape with the outer bent portion 77, the extended 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. Arrange at position P.
[0030]
Similarly to the left posture stabilizing claw 70, the right posture stabilizing claw 80 is arranged with a phase shifted by approximately 180 ° with respect to the front end portion 73 of the outer auger blade 55 of the right auger shaft 46 (see also FIG. 3).
Therefore, the right posture stabilizing claw 80 is arranged in phase with the front end portion 73 of the outer auger blade 55 provided on the left auger shaft 45.
Since the right posture stabilizing claw 80 has the same shape as the left posture stabilizing claw 70, the same reference numerals as those of the left posture stabilizing claw 70 are attached to the respective components of the right posture stabilizing claw 80, and description thereof is omitted.
[0031]
In this way, the left posture stabilizing claw 70 is phase-matched to 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 left auger shaft 45. The reason why the phase is aligned with the front end portion 73 will be described with reference to FIG.
[0032]
An intermediate support member 83 is attached to the intermediate portion 82 of the left auger shaft 45, and the intermediate auger blade 56 is attached to the blade holder 84 of the intermediate support member 83 with bolts 85 and 85 and nuts 86 and 86 (see FIG. 8 for the nut 86). .
[0033]
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 claw 100 is provided in the vicinity of the inner auger blade 57 by providing the left driving claw 100 with a bolt 98 and a nut 99 (see FIG. 8 for the nut 99) on the claw holder 97 of the inner support member 92.
[0034]
The left driving claw 100 is arranged at a phase shifted by about 180 ° with respect to the inner auger blade 57 (see also FIG. 3 and FIG. 6), so that the front driving portion 107 of the inner auger blade 57 provided on the right auger shaft 46 is arranged. They are opposed to each other (see also FIGS. 6 and 8).
[0035]
The left driving claw 100 includes a base end portion 101 disposed on the claw holder 97 of the inner support member 92 and a curved claw portion 102 bent inward from the base end portion 101 (see also FIGS. 6 and 8). It consists of.
The base end portion 101 is formed with a constant width, and the curved claw portion 102 is formed with a slightly narrower width than the base end portion 101.
In addition, the width | variety of the base end part 101 and the curved nail | claw part 102 is not limited to this, It can determine suitably.
[0036]
The base end portion 101 of the left driving claw 100 is disposed on 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, whereby the left driving claw 100 is attached to the inner support member 92. It attaches to the nail holder 97 of the.
[0037]
Like the left driving claw 100, the right driving claw 106 is provided on the left auger shaft 45 by being arranged with a phase shifted by approximately 180 ° with respect to the inner auger blade 57 of the right auger shaft 46 (see also FIG. 3). The inner auger blade 57 is opposed to the front end portion 107 (see also FIG. 8).
Since the right driving claw 106 has the same shape as the left driving claw 100, the same reference numerals as those of the left posture stabilizing claw 70 are attached to the components of the right driving claw 106, and description thereof is omitted.
The reason why the left and right driving nails 100 and 106 are configured as described above will be described in detail with reference to FIG.
[0038]
Here, the outer auger blade 55, the intermediate auger blade 56, and the inner auger blade 57 are members of 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.
[0039]
A support member 109 is attached to the inside of the inner support member 92 of the left auger shaft 45 and in the vicinity of the power transmission member 43, and a left snow removing claw 110 is provided on the support member 109, whereby the front end 107 of the inner auger blade 57 is provided. The phase is shifted by a predetermined angle (as an example, approximately 30 ° in the counterclockwise direction) (see also FIG. 3).
The predetermined angle of 30 ° can be set arbitrarily.
[0040]
The left snow removing claw 110 is formed by attaching a support member 109 to a portion in the vicinity of the power transmission member 43 inside the inner support member 92 of the left auger shaft 45 and bolting the claw holder 111 of the support member 109.
That is, the left snow removing claw 110 includes 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 an extension part 114 extended to the outside and a claw part 115 bent outward from the extension part 114.
[0041]
The base end 112, the inner bent portion 113, and the extended portion 114 are formed with a constant width, and the claw portion 115 is formed with a slightly narrower width than the base end portion 112, the inner bent portion 113, and the extended portion 114. The inner bent portion 113, the extending portion 114, and the claw portion 115 form a substantially U shape.
In addition, the width | variety of the base end part 112, the internal bending part 113, the extension part 114, and the nail | claw part 115 is not limited to this, It can determine suitably.
[0042]
The base end portion 112 of the left snow removing claw 110 is disposed on the support member 109, the bolt 116 is passed through the claw holder 111 and the base end portion 112 of the support member 109, and the nut 116 (the nut 117 is the right snow removing claw 120. The left snow removing claw 110 is attached to the support member 109 by tightening.
[0043]
At this time, the base end portion 112 of the left snow removing claw 110 is opposed to the left outer wall portion 47 of the power transmission member 43 in a close state.
Further, the inner bent portion 113 is bent inward from the base end portion 112, so that 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 oppose the left outer peripheral wall part 48a of them.
[0044]
Like 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 a 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 same reference numerals as those of the left snow removal claw 110 are assigned to the components of the right snow removal claw 120, and description thereof is omitted.
[0045]
As described above, 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 left auger shaft 45. The reason why the phase is aligned with the front end portion 73 will be described with reference to FIG.
[0046]
FIG. 3 is a side view showing an auger device of a snowplow according to the present invention.
The auger device 30 is arranged such that the inner auger blade 57 is shifted 120 ° rearward around the auger shaft with respect to the outer auger blade 55, and the intermediate auger blade 56 is rearward 120 ° around the auger shaft with respect to the inner auger blade 57. It is a staggered arrangement.
Further, the outer auger blade 55, the intermediate auger blade 56, and the inner auger blade 57 are formed so that the outer peripheral angle θ is approximately 150 ° as an example.
[0047]
The auger device 30 also has the front end portion 107 of the inner auger blade 57 superimposed on the rear end portion of the outer auger blade 55 in a side view, and the front end portion 122 of the intermediate auger blade 56 on the rear end portion 108 of the inner auger blade 57. And the front end portion 73 of the outer auger blade 55 is overlapped with the rear end portion 123 of the intermediate auger blade 56.
[0048]
Therefore, when the auger device 30 is rotated as shown by the arrow and snow is broken in the order of the outer auger blade 55, the inner auger blade 57, and the intermediate auger blade 56, The avalanche work with the auger blade 57 is started.
[0049]
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.
As described above, 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 snow removal workability.
[0050]
FIG. 4 is a side view showing the outer auger blade and the left posture stabilizing claw constituting the auger device of the snowplow according to the present invention.
The outer support member 64 includes a blade holder 65 in which a through-hole 125 is fitted into the left auger shaft 45 and joined to the left auger shaft 45 by welding, and an outer auger blade 55 is attached, and a claw holder 68 to which a left posture stabilizing claw 70 is attached. Provided at a position shifted by approximately 180 °.
[0051]
The outer auger blade 55 is a curved blade whose outer peripheral angle θ is set to approximately 150 ° as an example, and a mounting portion 126 is formed on the inner peripheral side of the front end portion 73, and this mounting portion 126 is used as the outer support member 64. The blade holder 65 is attached with bolts 66 and 66 and nuts 67 and 67 (see the outer auger blade 55 of the right auger shaft 46 shown in FIG. 2 for the nut 67), and the rear end 74 side is a free end. .
[0052]
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 for elastically deforming the outer auger blade 55 will be described later with reference to FIG.
[0053]
The left posture stabilizing claw 70 is attached to the claw holder 68 of the outer support member 64 with 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 tip of the claw portion 79 is disposed in the vicinity of an arc along the outer periphery of the outer auger blade 55.
[0054]
FIG. 5 is a side view showing an intermediate auger blade constituting the auger device of the snowplow 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) while being shifted by 240 ° in the clockwise direction (backward about the left auger shaft 45). It is a thing.
[0055]
The intermediate auger blade 56 is the same member as the outer auger blade 55 (see FIG. 3), and an attachment portion 129 is formed on the inner peripheral side of the front end portion 122, and this attachment portion 129 is attached to the blade holder 84 of the intermediate support member 83. The bolts 85 and 85 and nuts 86 and 86 (see FIG. 8 for the nut 86) are attached.
Accordingly, the intermediate auger blade 56 is attached to the outer auger blade 55 (see FIG. 3) while being shifted by 240 ° around the left auger shaft 45.
[0056]
By attaching the intermediate auger blade 56 to the blade holder 84 using only the attachment portion 129, the intermediate auger blade 56, particularly the outer peripheral side, can be elastically deformed to some extent.
The reason for elastically deforming the intermediate auger blade 56 will be described later with reference to FIG.
[0057]
FIG. 6 is a side view showing the inner auger blade and the left driving claw constituting the auger device of the snowplow 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 while being shifted by 120 ° in the clockwise direction (backward about the left auger shaft 45).
[0058]
The inner auger blade 57 is the same member as the outer auger blade 55 (see FIG. 3), and an attachment portion 131 is formed on the inner peripheral side of the front end portion 107, and this attachment portion 131 is attached to the blade holder 93 of the inner support member 92. 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) are attached.
Therefore, the inner auger blade 57 is attached to the outer auger blade 55 so as to be shifted 120 ° behind the left auger shaft 45.
[0059]
By attaching the inner auger blade 57 to the blade holder 93 using only the attachment portion 131, the inner auger blade 57, particularly the outer peripheral side, can be elastically deformed to some extent.
The reason for elastically deforming the inner auger blade 57 will be described later with reference to FIG.
[0060]
The left driving claw 100 is substantially the same as the front end 107 of the inner auger blade 57 by attaching the base end 101 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). In addition to being disposed at a position shifted by 180 °, the tip of the curved claw portion 102 is disposed in the vicinity of the 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.
[0061]
Here, the phase of 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 in a state of facing the front end portion 107 of the inner auger blade 57 (shown by an imaginary line) of the right auger shaft 46.
As a result, the snow mass that flows between the left driving claw 100 and the inner auger blade 57 of the right auger shaft 46 is grasped by the left driving claw 100 and the inner auger blade 57 of the right auger shaft 46 and sent backward. it can.
[0062]
FIG. 7 is a side view showing the left snow removing claw of the auger device of the snowplow according to the present invention.
The support member 109 is fitted with a through hole 134 in the left auger shaft 45 in a state of being shifted by approximately 30 ° counterclockwise (backward about the left auger shaft 45) with respect to the inner support member 92 (see FIG. 6). The auger shaft 45 is joined by welding, and the pair of claw holders 111, 111 are provided at positions shifted by 180 °.
[0063]
The left snow removing claw 110 has a base end portion 112 on one of the pair of claw holders 111, 111 of the support member 109 (upper claw holder 111 in FIG. 7) and a bolt 116 and a nut 117 (the nut 117 is shown in FIG. 2). Are attached to the front end 107 of the inner auger blade 57 by a predetermined angle (approximately 30 ° as an example), and the tip of the claw 115 is attached. Is arranged in the vicinity of the arc 132 along the outer periphery of the inner auger blade 57.
[0064]
According to the left snow removing claw 110, the base end portion 112 of the left snow removing claw 110 can be opposed to the left outer wall 47 of the power transmission member 43, and the inner bent portion is further extended from the base end portion 112. 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 113 inward (see also FIG. 2).
[0065]
FIG. 8 is a plan view showing an auger device for a snowplow 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 has a phase shifted by 180 ° with respect to the left auger 50.
[0066]
The left auger 50 includes an outer auger blade 55, an intermediate auger blade 56, and an inner auger blade 57 in this order from the outside toward the center in the vehicle width direction on the left auger shaft 45.
Similar to the left auger 50, the right auger 51 includes an outer auger blade 55, an intermediate auger blade 56, and an inner auger blade 57 on the left auger shaft 46 from the outside toward the center in the vehicle width direction.
[0067]
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 disposed.
Thus, the first and second spiral blades whose phases are shifted by 180 ° are constituted by only the three members of the outer auger blade 55, the inner auger blade 57, and the intermediate auger blade 56.
Thereby, since the weight reduction of the auger apparatus 30 can be achieved, the output of the auger drive engine (work engine) 37 (see FIG. 1) for rotating the auger apparatus 30 can be suppressed.
[0068]
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 spaced at a predetermined interval L in the width direction. The gap 135 was opened.
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 disposed with a gap 135 of a predetermined distance L will be described with reference to FIG.
[0069]
Further, the claw portion 79 of the left posture stabilizing claw 70 is disposed at substantially the same position P as the front end portion 73 of the outer auger blade 55 of the left auger shaft 45 in the vehicle width direction. In the vehicle width direction, it is disposed at a position P that is substantially the same as the front end 73 of the outer auger blade 55 of the right auger shaft 46.
Further, the left driving claw 100 is opposed to the front end portion 107 of the inner auger blade 57 of the right auger shaft 46, and the right driving claw 106 is opposed to the front end portion 107 of the inner auger blade 57 of the left auger shaft 45.
[0070]
Further, the base end portion 112 of the left snow removing claw 110 is opposed to the left outer wall portion 47 of the power transmission member 43 and the inner bent portion 113 is bent inward from the base end portion 112 so that the inner bent portion 113 is bent. The portion 113 can be opposed to the left outer peripheral wall portion 48 a of the outer peripheral wall portion 48 of the power transmission member 43.
[0071]
In addition, the base end portion 112 (see FIG. 2) of the right snow removing claw 120 is opposed to the right outer wall portion of the power transmission member 43 and the inner bent portion 113 is bent inward from the base end portion 112. Thus, the inner bent portion 113 can be made to face the right outer peripheral wall portion 48 b of the outer peripheral wall portion 48 of the power transmission member 43.
[0072]
FIG. 9 is a perspective view showing an outer auger blade constituting the auger device of the snowplow 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 formed in the same manner.
[0073]
The outer auger blade 55 is formed with a plurality of (for example, four) cutting blades 142 by forming a plurality of (for example, four) 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 two saw blades 146a and 146b (for example), A cutting blade 148 is formed along the outer periphery 140 from the center 144 to the blade edge 148 of the cutting blade 142, and the cutting blade 148 is curved outward in the width direction, for example, with a radius R, and the rear end portion of the cutting blade 148 is set inward in the width direction. The folded blade 149 is bent.
In order to provide the cutting blade 145 with saw blades 146a and 146b, recesses 153 and 153 are formed in the cutting blade 145.
[0074]
The rear end portion 74 of the outer auger blade 55 includes only a portion 151 on the front end side of the cutting blade 145.
The range from the front end portion 73 to the rear end portion 74 of the outer auger blade 55 is defined as a curved reinforcement portion 152 that protrudes in a curved shape outward in the width direction along the outer periphery 140. By providing the curved reinforcement portion 152, the strength of the outer auger blade 55 is ensured.
[0075]
A plurality of cutting blades 142... Are formed on the outer periphery 140 of the outer auger blade 55, the front half of the cutting blade 142 is a cutting blade 145, and the reason why the saw blades 146a and 146b are formed on the cutting blade 145 is shown in FIG. I will explain it.
[0076]
FIG. 10 is a plan view showing an outer auger blade constituting the auger device of the snowplow according to the present invention.
As an example, the cutting blade 142 is bent outward in the width direction with a radius R, and a folded blade 149 is formed by bending the rear end portion of the cutting blade 148 inward in the width direction.
By curving the cutting blade 142 outward in the width direction with a radius R, the width of the cutting blade 145 constituting the front half of the cutting blade 142 is W1, and the turning blade of the cutting blades 148 constituting the latter half of the cutting blade 142 The width | variety of the site | part 154 except 149 is set to W2, and the width | variety of the folding blade 149 is set to W3.
[0077]
In addition, a portion 154 of the cutting 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 continuously arranged from the portion 154 and arranged inside.
In this way, the cutting blade 145 is overlapped in the front-rear direction with the portion 154 of the cutting blade 148 excluding the folding blade 149, and the rear end portion of the cutting blade 148 is further bent inward in the width direction. The reason for this will be explained in head 14.
[0078]
In the present embodiment, the example in which the cutting blade 142 is curved in the arc shape outward in the width direction with the radius R has been described. However, the shape of the curve is not limited to the arc shape, and may be curved in an arbitrary shape. Is possible.
[0079]
Next, the operation of the snowplow will be described with reference to FIGS.
11A to 11C are first operation explanatory views showing the operation of the snowplow according to the present invention, and schematically show the outer auger blade 55, the intermediate auger blade 56, and the 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 is disposed along the second spiral locus 61.
[0080]
When the left auger shaft 45 rotates the left auger 50 as shown by the arrow (1) and the outer auger blade 55 breaks the snow 155, the intermediate auger blade 56 also breaks the snow 155.
Further, the snow body 156 broken by the outer auger blade 55 is sent along the outer auger blade 55 as indicated by the arrow (2).
[0081]
In (b), the left auger shaft 45 rotates the left auger 50 by 90 ° in the direction of arrow (1). The snow 155 is crushed continuously by the outer auger blade 55 and the snow body 156 sent halfway along the outer auger blade 55 is moved along the outer auger blade 55 along the rear end of the outer auger blade 55 as indicated by the arrow (3). Continue to the position P1 corresponding to 74.
[0082]
In (c), the left auger 50 is rotated 180 ° in the direction of arrow (1) by 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 sent along the intermediate auger blade 56 as indicated by the arrow (4).
[0083]
FIGS. 12A to 12C are second operation explanatory views showing the operation of the snowplow according to the present invention, and schematically show the outer auger blade 55, the intermediate auger blade 56 and the inner auger blade 57.
In (a), the left auger 50 is rotated 270 ° in the direction of the arrow (1) by the left auger shaft 45. The snow 155 is continuously broken by the inner auger blade 57, and the snow 155 is broken by the intermediate auger blade 56.
On the other hand, the snow body 156 sent halfway along the intermediate auger blade 56 is continuously sent along the intermediate auger blade 56 in the direction of the rear end portion 123 of the intermediate auger blade 56 as indicated by the arrow (5).
Continue to send to the corresponding position P2.
[0084]
In (b), the left auger shaft 45 is rotated 360 ° in the direction of arrow (1) by the left auger shaft 45. The work of breaking the snow 155 with the inner auger blade 57 is completed, and the snow 155 is broken with the intermediate auger blade 56.
On the other hand, the snow body 156 sent by the intermediate auger blade 56 reaches a position P <b> 2 corresponding to the rear end portion 123 of the intermediate auger blade 56.
[0085]
In (c), the left auger shaft 45 rotates the left auger 50 in the direction of arrow (1) by 450 °. The operation 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 indicated by the arrow (6).
[0086]
As a result, 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 scraped to the blower housing 31 at the center in the vehicle width direction by the inner auger blade 57.
Further, the outer auger blade 55 and the inner auger blade 57 are arranged along the common first spiral locus 60 (see FIG. 11A), and along the second spiral locus 61 (see FIG. 11A). Since the intermediate auger blade 56 is disposed, when the snow 155 is broken by the outer auger blade 55 or the inner auger blade 57, the snow 155 can be broken by the intermediate auger blade 56 at the same time, and the snow 155 is efficiently broken. be able to.
[0087]
FIGS. 13A and 13B are third operation explanatory views showing the operation of the snowplow according to the present invention.
The left auger shaft 45 rotates the left auger 50 as indicated by arrow a, and the right auger shaft 46 rotates the right auger 51 as indicated by 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 are digged into the snow 155.
[0088]
Therefore, the snow 155 can be efficiently destroyed by crushing the snow mass in the snow 155 by the impact force when the left and right driving claws 100 and 106 are digged into the snow 155.
Further, by causing the left and right driving claws 100 and 106 to 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.
[0089]
In addition, the left driving claw 100 is disposed so as to face the front end portion 107 of the inner auger blade 57 provided on the right auger shaft 46, and the right driving claw 106 is disposed on the inner auger blade 57 provided on the left auger shaft 45. It arrange | positioned so that the front-end part 107 might be opposed.
Therefore, the snow mass 157 in front of the power transmission member 43 arranged at the center in the vehicle width direction is grasped by the left driving claw 100 and the inner auger blade 57 of the right auger shaft 46 and sent backward as indicated 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 sent backward as indicated by the arrow b.
[0090]
In addition, as described with reference to FIGS. 11 to 12, the snow 158 scraped to the front of the power transmission member 43 by the left and right augers 50 and 51 (for convenience, the sign of the snow mass 157 is changed, Are gripped as indicated by the arrow b between the left driving claw 100 and the inner auger blade 57 of the right auger shaft 46 and sent rearward, or the right driving claw 106 and the inner auger blade 57 of the left auger shaft 45 And can be sent backward as shown by arrow b.
[0091]
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, 51, the snow block 157 at the center in the vehicle width direction and the snow 158 collected in the center are efficiently used for the blower 40. It can feed well and improve snow removal workability.
[0092]
Further, the left auger 50 is divided into three parts: an outer auger blade 55, an intermediate auger blade 56 and an inner auger blade 57, and the right auger 51 is divided into three parts: an outer auger blade 55, an intermediate auger blade 56 and an inner auger blade 57. did.
Therefore, each auger blade 55, 56, 57 can be formed compactly and can be attached to the auger shaft 45 only at one location of each support member 64, 83, 92.
[0093]
Thereby, for example, when a foreign object 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 foreign matter 160 that has entered can be released from between the outer auger blade 55 and the auger housing 35 with the left and right augers 50 and 51 being rotated.
[0094]
Further, the intermediate auger blade 56 and the inner auger blade 57 can escape the foreign matter 160 in the same manner as the outer auger blade 55.
Accordingly, it is possible to prevent the foreign matter 160 from being caught in the gaps 136, 137, 138 between the auger blades 55, 56, 57 and the auger housing 35.
[0095]
Even if the foreign object 160 is caught in the gaps 136, 137, 138 between the auger blades 55, 56, 57 and the auger housing 35, the operator elastically deforms the auger blades 55, 56, 57. The bitten foreign object 160 can be easily removed.
As a result, the trouble of removing the bitten foreign matter 160 can be saved, and the operating rate of the auger device 30 can be increased to improve snow removal workability.
[0096]
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 of a predetermined interval L in the width direction.
Therefore, even if the foreign matter 160 enters the gap 136 between the outer auger blade 55 and the auger housing 35 and 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 It is possible to prevent the foreign matter 160 from getting caught through the gap 135 between the rear end portion 74 and the front end portion 107 of the inner auger blade 57.
[0097]
FIGS. 14A and 14B are fourth operation explanatory views showing the operation of the snowplow 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 blade 142 is formed in a curved shape from the cutting edge 143 to the center 144 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 a snow lump) 155 and the snow 155 can be broken.
[0098]
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 lump or ice-like hard snow) 155 can be crushed by the saw blades 146a and 146b.
[0099]
In addition, as an example, the cutting blade 142 is bent outward in the width direction with a radius R, and a folded blade 149 is formed by bending the rear end portion 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.
[0100]
After the snow 155 is made with the cutting blade 145 and the saw blades 146a and 146b, the portion 154 of the cutting blade 148 excluding the folding blade 149 is overlapped at the broken position, and the snow 155 is broken as shown by an arrow d.
As a result, the streaky snow removal residue generated when the snow 155 is crushed by the cutting blade 145 or the saw blades 146a and 146b can be crushed and removed by the shaving blade 154 excluding the folding blade 149. Therefore, it is possible to improve snow removal performance by eliminating streaky snow removal residue.
[0101]
In addition, by folding the rear end portion of the shaving blade 148 inward in the width direction to form the folding blade 149, the snow 155 is broken as indicated by the arrow d at the portion 154 excluding the folding blade 149, and then the snow 155 inside the snow 155 Is continuously broken by the folding blade 149 as shown by an arrow e.
Thus, by continuously breaking the snow 155, the snow 155 can be efficiently broken by the folding blade 149.
[0102]
In the present embodiment, the example in which only the portion 154 of the cutting blade 148 excluding the turning blade 149 is overlapped with the cutting blade 145 is not limited to this, but the cutting blade 145 It is also possible to form the cutting blade 148 so as to overlap both the portion 154 excluding the folding blade 149 and the folding blade 149.
[0103]
FIG. 15 is a fifth operation explanatory view showing the operation of the snowplow according to the present invention.
The left posture stabilizing claw 70 is phase-matched to 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 aligned with the front end 73 of the outer auger blade 55 provided on the left auger shaft 45. Arranged in phase.
[0104]
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 front end portion 73 of the outer auger blade 55 of the right auger shaft 46 bites into the snow 155 and the snow 155 is destroyed. At the same time, the left posture stabilization claw 70 can be caused to bite into the snow 155.
Further, when the front end 73 of the outer auger blade 55 of the left auger shaft 45 is caused to bite into the snow 155 and the snow 155 is broken, the right posture stabilizing claw 80 can be caused to bite into the snow 155 at the same time.
[0105]
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 that is substantially the same magnitude as the reaction force that is generated when it bites 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 that is approximately the same magnitude as the reaction force that occurs when the snow 155 bites into the snow 155.
Therefore, the balance of reaction force generated in the left and right augers 50 and 51 can be maintained, and the posture of the auger device 30 can be stabilized.
[0106]
The left and right posture stabilizing claws 70, 80 crush the snow mass in the snow 155 with an impact force when the claw portions 79, 79 provided at the respective tips bite into the snow 155, thereby efficiently removing the snow 155. Further, it can function as a driving nail that prevents the left and right augers 50 and 51 from floating.
[0107]
Further, the base end portion 112 of the left snow removing claw 110 is opposed to the vicinity of the left outer wall portion 47 of the power transmission member 43, and the inner bent portion 113 is disposed on the left outer peripheral wall of the outer peripheral wall portion 48 of the power transmission member 43. It was made to oppose the part 48a vicinity.
Further, the base end portion 112 of the right snow removing claw 120 is opposed to the vicinity of the right outer wall portion 49 (see also FIG. 8) of the power transmission member 43, and the inner bent portion 113 is disposed on the outer peripheral wall portion 48 of the power transmission member 43. It was made to oppose the right outer peripheral wall part 48b vicinity.
[0108]
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 left snow removing claw 110 causes the left half of the outer wall 44 of the power transmission member 43 (that is, the left wall). Snow accumulated on the left outer peripheral wall portion 48a) of the portion 47 and the outer peripheral wall portion 48 can be removed.
[0109]
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 portion 48b of the right wall portion 49 and the outer peripheral wall portion 48). (See FIG. 8 for the right side wall 49).
This prevents snow from accumulating on the outer wall 44 of the power transmission member 43, and the snow collected in the center in the vehicle width direction by the left and right augers 50 and 51 is blower 40 behind the left and right augers 50 and 51 (see FIG. 1). ) To improve snow removal efficiency.
[0110]
Furthermore, by preventing snow from accumulating on the outer wall 44 of the power transmission member 43, it is possible to prevent rotation of the left and right augers 50 and 51 from being prevented by the accumulated snow.
In addition, by preventing snow from accumulating on the outer wall 44 of the power transmission member 43, it is possible to prevent the auger device 30 from moving forward with the accumulated snow.
In this way, by preventing the rotation of the left and right augers 50 and 51 and the advance of the auger device 30 from being disturbed, the left and right augers 50 and 51 are secured to the snow surface and the snow removal efficiency is improved. be able to.
[0111]
The left and right snow-removing claws 110 and 120 crush the snow mass in the snow 155 with an impact force when the claw portions 115 and 115 provided at the respective tips bite into the snow 155 to efficiently remove the snow 155. The function of breaking can also be achieved, and further, the role of preventing the left and right augers 50 and 51 from floating can be achieved.
[0112]
In the above-described embodiment, the left and right posture stabilizing claws 70 and 80 are described as having an approximately U-shape formed by the outer bent portion 77, the extending portion 78, and the claw portion 79. The posture stabilizing claws 70 and 80 can be formed in an arbitrary shape.
[0113]
Moreover, although the said embodiment demonstrated the example which formed the right and left driving nails 100 and 106 in the curved shape by the curved nail | claw parts 102 and 102, it is not restricted to this, The left and right driving nails 100 and 106 are made into arbitrary shapes. Can be formed.
[0114]
Furthermore, in the above-described embodiment, an example in which the left and right snow removing claws 110 and 120 are formed in a substantially U-shape with the inner bent portion 113, the extending portion 114, and the claw portion 115 has been described. The snow removing claws 110 and 120 can be formed in an arbitrary shape.
[0115]
In the above-described embodiment, the left auger claw 100 is provided in the vicinity of the inner auger blade 57 of the left auger shaft 45 with a phase shifted from the inner auger blade 57 in the vicinity of the inner auger blade 57 of the right auger shaft 46. Further, the example in which the right driving claw 106 is provided with the phase shifted with respect to the inner auger blade 57 has been described, but the left driving claw 100 is provided at an arbitrary position of the left auger shaft 45 and the right auger shaft 46 is arbitrarily set. It is also possible to provide the right driving claw 106 at the position.
[0116]
【The invention's effect】
The present invention exhibits the following effects by the above configuration.
According to the first aspect of the present invention, a left posture stabilizing claw is provided in the vicinity of the outer auger blade of the left auger shaft in phase with the outer auger blade of the right auger shaft, and the outer side of the left auger shaft is disposed in the vicinity of the outer auger blade of the right auger shaft. A right posture stabilizing claw was provided in phase with the auger blade.
[0117]
Therefore, when the outer auger blade of the right auger shaft is sunk into the snow, the left posture stabilizing claw is sunk into the snow, and when the outer auger blade of the left auger shaft is sunk into the snow, the right posture stabilizing claw is sunk into the snow. Can be bitten.
[0118]
As a result, a reaction force that is approximately the same as the reaction force generated when the outer auger blade of the left auger shaft bites into the snow is generated in the right posture stabilizing claw, and the outer auger blade of the right auger shaft bites into the snow. A reaction force having substantially the same magnitude as the generated reaction force can be generated in the left posture stabilizing claw.
Therefore, the balance of the reaction force generated in the left and right augers can be maintained and the posture of the auger device can be stabilized.
According to a second aspect of the present invention, a claw portion for allowing snow to bite into the tip of the left posture stabilizing claw is provided, and the claw portion is disposed at substantially the same position as the front end portion of the outer auger blade of the left auger shaft in the vehicle width direction.
Further, a claw portion for causing snow to penetrate into the tip of the right posture stabilizing claw is provided, and this claw portion is disposed at substantially the same position as the front end portion of the outer auger blade of the right auger shaft in the vehicle width direction.
[Brief description of the drawings]
FIG. 1 is a side view showing a snowplow according to the present invention. FIG. 2 is a perspective view showing an auger device of the snowplow according to the present invention. 4 is a side view showing an outer auger blade and a left posture stabilizing claw constituting an auger device of a snowplow according to the present invention. FIG. 5 is a side view showing an intermediate auger blade constituting an auger device of a snowplow according to the present invention. 6 is a side view showing an inner auger blade and a left driving claw constituting an auger device of a snowplow according to the present invention. FIG. 7 is a side view showing a left snow removing claw of an auger device of a snowplow according to the present invention. 8 is a plan view showing an auger device of a snowplow according to the present invention. FIG. 9 is a perspective view showing an outer auger blade constituting the auger device of the snowplow according to the present invention. FIG. 10 is an auger of the snowplow according to the present invention. The outer auger blades that make up the device FIG. 11 is a first action explanatory view showing the action of the snowplow according to the present invention. FIG. 12 is a second action explanatory view showing the action of the snow remover according to the invention. FIG. 14 is a fourth action explanatory view showing the action of the snowplow according to the present invention. FIG. 15 is a fifth action explanatory view showing the action of the snow remover according to the invention. 16] Plan view showing a conventional auger device [Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Snowblower, 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: inner auger blade, 70: left posture stabilizing claw , 73: front end portion, 74 ... rear end portion, 79 ... claw portion , 80 ... right posture stabilizing claw, 155 ... snow.

Claims (2)

The left and right auger shafts are extended from the center in the vehicle width direction to the left and right, respectively, and the outer auger blade, the intermediate auger blade, and the inner auger blade are sequentially provided on the respective auger shafts from the outside toward the center in the vehicle width direction. In a snow remover that breaks snow by rotating these augers on the left and right auger shafts and scrapes the broken snow in the center,
The phase of the left and right augers is shifted by approximately 180 °,
The outer auger blade of the left auger shaft is formed in a curved shape in a side view, the front end portion of the outer auger blade is attached to the left auger shaft and the rear end portion is a free end,
In the vicinity of the outer auger blade of the left auger shaft, a left posture stabilizing claw is provided by adjusting the phase to the front end of the outer auger blade of the right auger shaft by shifting the phase by 180 ° with respect to the front end of the outer auger blade. ,
The outer auger blade of the right auger shaft is formed in a curved shape in a side view, the front end portion of the outer auger blade is attached to the right auger shaft and the rear end portion is a free end,
In the vicinity of the outer auger blade of the right auger shaft, a right posture stabilizing claw is provided in phase with the front end portion of the outer auger blade of the left auger shaft by shifting the phase by 180 ° with respect to the front end portion of the outer auger blade. By
When the snow breaks at the front end of the outer auger blade of the left auger shaft, the right posture stabilization claw bites into the snow. When the snow breaks at the front end of the outer auger blade of the right auger shaft, the left posture stabilization claw bites into the snow. The snowplow is configured to stabilize the posture of the left and right augers. The left posture stabilization nail is
Provided with a claw portion that penetrates into the snow at the tip, this claw portion is arranged at substantially the same position as the front end portion of the outer auger blade of the left auger shaft in the vehicle width direction,
The right posture stabilization nail
2. A snow remover according to claim 1, further comprising a claw portion that penetrates into snow at a tip thereof, and the claw portion is disposed at substantially the same position as a front end portion of the outer auger blade of the right auger shaft in the vehicle width direction.

Images