JP2015187340A - Snow remover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a snow remover with high performance that can properly secure the strength of a snow clearing board and can efficiently perform snowplow work of throwing away snow with the use of a blower, and work using the snow clearing board.SOLUTION: In the snow remover, when a snow clearing board 6 is positioned over an auger housing in a state of work covered by the snow clearing board, an edge part 600 facing a front side of right and left rotational arms 60 is located in front of front ends of right and left side plates of the auger housing, and has an inclined plane 601 that is inclined from the outside of an edge of the rotational arm 60 toward the inside of the auger housing and the rear side in a travel direction.

Description

  TECHNICAL FIELD The present invention relates to a snowplow that has a snow auger auger and a snow removal part that projects the snow that has been squeezed by a blower at the front of the machine body, and a snow removal plate can be disposed further forward of the snow removal part. .

  2. Description of the Related Art Conventionally, a snow remover provided with a snow scraping auger and provided with a snow removal portion for projecting snow by a blower is known. A snow remover that can further dispose a snow drain plate in front of the snow removal portion is also known. For example, “Snowplow” disclosed in Japanese Patent Application Laid-Open No. 2007-126860 and “Self-propelled small snowplow” disclosed in Japanese Utility Model Publication No. 3-46519 are known. These snow blowers can efficiently perform snow removal work by using a blower in the snow removal part for work in places where snowfall places etc. can be sufficiently secured. If the amount of snow accumulation is small, switching to the work of pushing out snow with a snow drainage board has the advantage that snow removal work can be performed efficiently.

JP 2007-126860 A Japanese Utility Model Publication No. 3-46519

As described above, it is possible to efficiently work with a snow remover that can further dispose a snow removal plate in front of the snow removal portion that is snowed by a blower. However, in order to push out snow by the snow removal plate, a large weight of snow is applied to the snow removal plate. Therefore, it is necessary to ensure sufficient strength of the arm that supports the blade portion on the side of the snowplow body, including the blade portion that is the snow receiving surface of the snow plate. For this reason, the arm that supports the blade is configured to have a certain strength and shape, but when performing snow removal work with a blower, it is located above the auger housing where the auger auger is installed. When the snow drainage plate is positioned, the arm that supports the blade part protrudes from the left and right sides of the auger housing, so that the resistance in the direction of travel acts by the snow that has not been removed by the protruding part. There has been a problem that an extra load acts on the engine or the like during snow removal work by which snow is thrown by.
Therefore, an object of the present invention is to provide a snow remover with good performance that can sufficiently ensure the strength of the snow drainage plate and can efficiently perform snow removal work for snow throwing snow with a blower and work with the snow drainage plate. .

  In order to solve the above-mentioned problem, the snowplow according to claim 1 is provided with an auger housing that opens toward the front, and the snow collected in the center by the rotating auger in the auger housing is driven to rotate behind the auger housing. In the snow remover provided with a snow removal unit that projects snow with a blower, a snow removal snow plate can be placed in front of the snow removal unit, and the snow removal plate is located in front of the snow removal unit It is possible to switch between the snowplow working state and the snowplow working state located above the auger housing. It is a structure that can be rotated and switched by a movably mounted pivot arm, and when the snow drain plate is in the working state of the snow drain plate located above the auger housing, it is the front end of the left and right pivot arms The portion is positioned in front of the front end portions of the left and right side plates of the auger housing, and has an inclined surface that is inclined from the outer edge of the rotating arm toward the inner side of the auger housing and the rear side in the traveling direction. Snow remover.

  In the snow remover according to claim 2, the edge of the left and right pivoting arm when the snow drainage plate is in operation is inclined forward from the outside toward the inner side of the auger housing and the rear side. The snow remover is characterized in that the position in the left-right direction is substantially the same as or inward of the front edge of the side plate of the auger housing.

  According to the present invention, even if the rotating arm is located on the outer side of the left and right side plates of the auger housing and supports the blade part having a sufficiently strong structure, the front edges of the left and right rotating arms have an auger from the outside. Due to the structure having an inclined surface inclined inward and rearward of the housing, the snow that abuts the rotating arm in the traveling direction is guided into the auger housing by the inclined surface, reducing the resistance in the traveling direction and reducing the load on the engine etc. A snowblower with good performance that can be reduced and work efficiently can be provided.

It is a left view at the time of the snow-removal board working state of the walk type blade snow remover which shows an example of this invention. It is a left view at the time of the snow-removal board working state of the walk type blade snow remover which shows an example of this invention. It is a front view at the time of the operation | work seen from the advancing direction at the time of the snowboard working state of the walk type blade snow remover which shows an example of this invention. It is sectional drawing of the rotation arm of the walk type blade snow remover of this invention. It is a perspective view of the snow drainage board of an example of this invention. It is the side view which carried out the cross section of the snow-removal board of an example of this invention.

  One embodiment will be described with reference to FIGS.

  The snowplow 1 showing an example of the present invention is provided with traveling crawler belts 4 on the left and right sides of the machine for traveling, and drives this to travel back and forth. A snow removal part 5 is provided in the front part of the machine body, an operation part 3 for operating the machine body is provided in the rear part of the machine body, and an engine part 2 that houses an engine that is a power source of the traveling part and the snow removal part 5 is provided in the center part of the machine body.

  The operation unit 3 is provided with a handle 30 that is gripped and operated by an operator on the left and right, and is provided with operation levers and switches for operating each part of the airframe at the center thereof. Operate and remove snow.

  The snow removal part 5 provided in the front part of the machine body collects snow at the center part by an auger 51 provided on a horizontal rotation shaft that is orthogonal to the traveling direction, and throws snow from a shooter 52 directed upward by a blower provided at the rear part of the center part. Snow. The direction of snow throwing can be changed by horizontally rotating the shooter 52. Further, the snow throwing angle can be changed by changing the angle of the deflector 520 at the upper end of the shooter 52. The auger 51 is covered with an auger housing 50 whose front portion is open, and is provided for safety such as prevention of entanglement while guiding the auger 51 to scrape snow.

  In front of the snow removal unit 5, a snow removal plate 6 that pushes out snow by advancing the machine body can be disposed, and the snow removal plate 6 is in a snow removal plate working state shown in FIG. It is possible to switch to the working state of the snow drain plate shown in FIG. 1 located above the auger housing 50. The switching extends from the snow drain plate 6 to the left and right, respectively, and the auger housing side plate at the left and right ends of the auger housing 50 It is structured to be turned and switched by a turning arm 60 attached to the outer side portion of the 500 so as to be rotatable up and down. In the snow-removal plate work state in which the snow-removal plate 6 is positioned above the auger housing 50, the snow removal operation of driving the snow-removal unit 5 and projecting snow is possible.

  Snow removal work can be performed by using the blower of the snow removal part 5 for work in a place where snowfall places can be secured sufficiently, and when the snowfall place etc. cannot be secured sufficiently or the amount of snow accumulation is small The snow removal work can be efficiently performed by switching to the work of extruding snow with the snow discharge plate 6. When working with the snow removal plate 6, the driving of the snow removal unit 5 is stopped.

  The snow drain plate 6 is wider than the auger housing 50 and has a bow-shaped blade 61 whose section for pushing snow swells backward, and a scraper that is provided at the lower end of the blade 61 and scrapes the snow. 62, a blade side plate 63 provided so that snow does not leak from the side end of the blade 61, a rotating arm 60 that connects the snow removing plate 6 to the snow removing portion 5 so as to be rotatable up and down, and a rotating arm 60 Is formed by a support arm 64 for holding the auger housing 50 on the auger housing 50.

  The rotating arm 60 extends from the rear surface of the blade 61 to the outer side of the auger housing side plate 500 on the left and right sides of the auger housing 50, and is rotatably attached to the outer side of the auger housing side plate 500 via the support arm 64. . FIG. 6 shows a cross-sectional view of the working state of the snow drain plate with the blade 61 positioned in the front, and the rotating arm 60 in this example is made of sheet metal and has a substantially unequal triangular shape having a corner portion in the side view. Thus, the rear surface portion of the blade 61 is fixed to the front corner portion, and a part of the upper side and the rear side extending upward from the front is bent inward in an L shape to give rigidity. The lower side is in a state where the end face of the plate is cut downward. When the snow drainage plate 6 is in the snow drainage plate working state, the lower side portion is turned upward and faces forward in the traveling direction, and is forward of the front edge of the auger housing side plate 500 of the auger housing 50. To position.

  A reinforcing member 602 having a cross-sectional shape shown in FIG. 4 is fixed to the inner side surface near the lower side by welding or the like, and the reinforcing member 602 rotates when the snow drainage plate 6 is in the snow drainage plate working state. The arm 60 has an inclined surface 601 that is inclined from the vicinity of the edge 600 that is the end of the arm 60 toward the inside of the auger housing 50 and the rear side in the traveling direction. The inclined surface 601 is inclined and extended from the inner surface of the rotating arm 60 toward the front end edge of the auger housing side plate 500 of the auger housing 50 when the snow removing plate 6 is in the working state. Alternatively, the end portion is located in the vicinity thereof or inside the auger housing side plate 500. In this example, since the auger housing side plate 500 has a step, the top of the inclined surface 601 is provided in two steps in a shape along the edge. The reinforcing member 602 is made of an iron plate, and its cross section has a V-shaped cross section bent from the top of the inclined surface 601 to the rotating arm 60 side.

  When the snow removing work is performed by the snow removing portion 5 in the snow removing plate working state, the rotating arms 60 project from the left and right auger housing side plates 500 of the auger housing 50 respectively, and the hatched portion A shown in FIG. This projecting portion abuts against the snow S of the non-snow-removing portion and becomes resistance in the traveling direction. However, since the reinforcing member 602 provided at the edge 600 portion of the rotating arm 60 in the traveling direction of the present example has the inclined surface 601, the abutted snow is guided into the auger housing 50 by the inclined surface, Resistance in the direction of travel is reduced.

  The rotating arm 60 is provided in the vicinity of an upper corner of a substantially unequal triangular shape in a side view of the rotating arm 60, and is moved up and down by a rotating arm rotation fulcrum 65 that is a horizontal rotation axis perpendicular to the traveling direction. It is held rotatably. The rotation arm rotation fulcrum 65 is provided on the outer side of the auger housing side plate 500 on the left and right sides of the auger housing 50 and is held together with the bearing holding portion of the auger 51 rotation shaft. It is provided and connected at a position offset to the upper rear side from the center.

  The support arm 64 has an egg shape in which a circular mounting seat 641 having a bolt hole for fastening with a bearing holding portion of the rotating shaft of the auger 51 and an arc-shaped outer periphery of the rotating arm rotation fulcrum 65 are connected by a tangent line. A plate-like stopper 640 is attached to a part of the upper surface so that the bent portion of the upper surface of the rotating arm 60 comes into contact with the blade 61 when it is in the snow-removing plate working state, and the rotation is controlled downward. Thus, the amount of biting below the snow discharge plate 6 is kept constant.

  When the snow discharge plate 6 is in a snow discharge plate working state, a stopper pin 66 provided upward facing the bent portion on the upper surface of the rotating arm 60 is formed in the engagement hole of the stopper bracket 53 provided on the auger housing 50 side. The retaining pin (not shown) is inserted and held in the pin hole provided in the stopper pin 66. The snowboard 6 is turned up and down by gripping the handle 630 provided at the upper part of the left and right blade side plates 63.

  The snow extruding part located at the front part does not allow the main blade 61 for extruding snow, the scraper 62 located at the lower end part thereof, and the snow pushed out by the blade 61 located on the left and right side parts not to escape sideways. Blade side plate 63. The blade 61 has an arcuate shape with an opening facing forward, and is provided with a width equal to or wider than the outer end of the auger housing 50. A scraper 62 is attached to the lower end of the blade 61 over almost the entire width of the blade 61. The scraper 62 is inclined at an acute angle from the front end toward the rear, and pushes the blade 61 against the snow surface so that the blade 61 moves forward to guide the snow along the concave surface on the front surface of the blade 61. It is raised and collected sequentially from the upper part curved forward to the front.

  In order to perform snow removal work by the snow remover 1 of this example, when the amount of snow is relatively large, the snow removal unit 5 is driven to snow and snow is removed. In this case, the snow-removing plate 6 is rotated above the auger housing 50, and the stopper pin 66 of the rotating arm 60 is fitted into the engaging hole of the stopper bracket 53 and the retaining pin is inserted and held. Since the reinforcing member 602 having the inclined surface 601 is provided at the front end portion of the rotating arm 60 provided so as to protrude from the outer side of the auger housing side plate 500, the abutting snow is caused by the inclined surface by the auger housing. The snow is guided by the snow removal unit 5 and is snowed. As a result, the resistance in the traveling direction is reduced, so the load on the engine and the like is reduced, and the work can be performed efficiently.

  When there is a relatively small amount of snow or when there is no snow throwing place, the snow removal unit 5 is not driven and snow is pushed out by the snow discharge plate 6 to remove snow. When using the snow removal plate 6, the handle portion 630 of the blade side plate 63 is held to release the engagement of the stopper pin 66 and is rotated from above the auger housing 50 to be positioned in front of the snow removal portion 5. When the traveling unit is driven to move forward, the snow scraped by the scraper 62 of the snow plate 6 rises along the blade 61, is dropped forward from the upper portion, and the snow is sequentially raised in front of the blade 61 portion to perform snow removal. be able to.

  The present invention has a traveling part made up of a crawler belt, tires, etc., and a snow removing auger or a snow removing part for projecting the snow thus snowed by a blower is provided at the front part of the machine body, and the snow is removed further forward of the snow removing part. It can be applied to snowplows that can arrange boards.

DESCRIPTION OF SYMBOLS 1 Snow remover 2 Engine part 3 Operation part 30 Handle 4 Traveling crawler belt 5 Snow removal part 50 Auger housing 500 Auger housing side plate 51 Auger 52 Shooter 520 Deflector 53 Stopper bracket 6 Snow removal board 60 Rotating arm 600 Edge 601 Inclined surface 602 Reinforcement Material 61 Blade 62 Scraper 63 Blade side plate 630 Handle 64 Support arm 640 Stopper 641 Mounting seat 65 Rotating arm rotation fulcrum 66 Stopper pin S Snow

Claims (2)

  An auger housing that opens toward the front, and a snow removal part that projects snow collected in the center by a rotating auger in the auger housing and then blows snow with a blower that is driven to the rear of the auger housing. In the machine, a snow removing plate can be arranged in front of the snow removing portion, and the snow removing plate is operated in the snow removing plate located in front of the snow removing portion and the snow removing plate located in the upper portion of the auger housing. It can be switched to the plate work state, and the switching is structured such that it is rotated by a rotating arm that is extended from the snow drain plate on the left and right sides and attached to the outer side of the left and right side plates of the auger housing so as to be rotatable up and down. Yes, when the snow drainage plate is in the working state where the snow drainage plate is located above the auger housing, the front edge of the left and right pivot arms is forward of the front end of the left and right side plates of the auger housing. Position, and snowplow which is characterized in that the end edge outside of the pivot arm has an inclined surface which is inclined toward the auger housing interior and the traveling direction rear side.   The lateral position of the top or end of the inner side of the auger housing where the edge facing forward of the left and right pivoting arm inclines from the outside toward the inner side of the auger housing and the rear side is the front edge of the side plate of the auger housing 2. The snow removal machine according to claim 1, wherein the snow removal machine is located at substantially the same position or inside thereof.

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