JP2005299157A - Snow plow - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a snow plow which can effectively perform snow removing work, without deteriorating snow removing performance by crushing a lump of snow and a lump of ice, when snow including the lump of snow and the lump of ice is removed. <P>SOLUTION: This snowblower 10 comprises: a wheel 17 which is equipped with a driving source 18; a vehicle body frame 15 for supporting the driving source 18 and the wheel 17; a rod member 12 which is obliquely provided in the front part of the frame 15; a handle 13 which is attached to an upper end 12b of the rod member 12; and a snow removing plate 11 which is provided at the lower end 12a of the rod member 12 so as to perform the operation of raking the snow on the road. The plate 11 is formed of an elastic member 30 so as to vibrate when abutting on the lump of snow and the lump of ice on a snow removing surface 39. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a snow remover capable of easily crushing snow including hard snow blocks and ice blocks.

Conventionally, scoops and excavators have been widely used as snow scrapers (see, for example, Patent Document 1).
JP-A-9-88028 (FIG. 1)

Patent document 1 is demonstrated based on the following figure.
FIG. 11 is a diagram for explaining a basic configuration of a conventional technique. A snow dumper 200 includes a shovel 201 that scrapes off snow, and a handle handle 203 having a U-shape in a plan view in which a pivot point 202 is attached to the tip of the shovel 201. And an arm 204 spanned between the intermediate point of the handle pattern 203 and the root of the excavator 201.

  The handle handle 203 is rotatably joined to the end of the shovel 201, and the arm 204 is a member added to restrict the angle of the handle handle 203 with respect to the shovel 201 within a certain range.

  Even if the handle pattern 203 fluctuates up and down during snow removal, only the force of the pushing component can be transmitted to the excavator 201, and the attitude of the excavator 201 does not change, and the attitude of the handle pattern 203 can be changed with respect to the excavator 201. Therefore, snow removal work can be performed easily.

However, during the snow removal work, the side 201a of the tip of the excavator 201 and the force of the pushing component only act substantially parallel to the road surface.
Therefore, when the tip of the excavator 201 collides with a snow mass or ice mass, there is a problem that the excavator 201 easily stops and the snow removal performance is impaired.
In the snow removal work, it is preferable to have a snow remover that can effectively perform snow removal work without damaging the snow removal performance by crushing the snow mass or ice mass even if it collides with the snow mass or ice mass.

  An object of the present invention is to provide a snow remover that can effectively perform snow removal work when removing snow including snow blocks and ice blocks.

  According to a first aspect of the present invention, in the snow remover provided with a snow removal plate at the front portion of the body frame that moves forward and backward by the power of the drive source, the snow removal plate vibrates when it comes into contact with a hard snow mass or ice mass on the snow removal surface. Thus, it is formed of an elastic member.

  The snow removal board constituting the snow removal machine travels while contacting the snow removal surface. At that time, since the elastic member forming the snow removal plate collides with a hard snow block or ice block on the snow removal surface, a slight deformation occurs at the tip of the snow removal plate. This slight deformation generates a repulsive force at the tip of the snow removal plate, repels hard snow blocks and ice blocks, and releases the repulsive force to restore the slight deformation of the tip of the snow removal plate.

As the snow remover travels, the collision of the hard snow block or ice block with the snow removal plate and the repulsion of each part of the snow removal plate are repeated without interruption at the tip of the snow removal plate, so that the snow removal plate vibrates.
The action of vibration generated on the snow removal board facilitates the crushing of hard snow blocks and ice blocks.
That is, the snow removal performance can be easily improved with a simple configuration due to the vibration generated in the snow removal plate and the propulsive force applied to the snow removal plate.

In the invention according to claim 1, since the snow removal plate is formed of an elastic member so as to vibrate when it comes into contact with the hard snow mass or ice mass on the snow removal surface, the vibration generated on the snow removal plate is caused by the hard snow mass or ice mass. Easy crushing.
As a result, there is an advantage that the snow removal performance of snow including hard snow blocks and ice blocks can be improved with a simple configuration due to the vibration generated in the snow removal plate and the propulsive force applied to the snow removal plate.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a front view of a snow remover according to the present invention. In a snow remover 10 provided with a snow removal plate 11 at the front of a vehicle body frame 15 that moves forward and backward by the power of a drive source 18, a snow removal plate 11 that scrapes or scratches snow. A saddle member 12 attached to the snow removing plate 11, a vehicle body frame 15 extending from the saddle member 12, a wheel 17 attached to the other end 15 b of the vehicle body frame 15, and driving the wheel 17. The wheel 17 is rotated by the driving force of the driving source 18 and the snow removing plate 11 can be tilted back and forth around the shaft 17a of the wheel 17.

  More specifically, the lower end 12a of the eaves member 12 is attached to the snow removal plate 11, the eaves member 12 is raised obliquely from the front to the rear, and the handle 13 is attached to the upper end 12b of the eaves member 12. Then, one end 15a of the vehicle body frame 15 is attached between the lower end 12a and the upper end 12b of the flange member 12, and the vehicle body frame 15 extends obliquely rearward.

In addition, a shock absorber 21 is interposed between the eaves member 12 and the snow removal plate 11 at a position lower than the support point 19 where the eaves member 12 is attached to the vehicle body frame 15.
The stroke portion 22 of the shock absorber 21 is configured to be covered with the vehicle body frame 15 and is disposed at a position where snow adheres to the stroke portion 22 and does not freeze.

Since the shock absorber 21 is interposed between the gutter member 12 and the snow removal plate 11, the impact received by the snow removal plate due to the undulation, unevenness, foreign matter, etc. of the snow surface can be mitigated.
Since the shock received by the snow removing plate 11 is alleviated by the shock absorber 21, the impact force applied to the handle 13 can be reduced.
Since the impact force applied to the handle 13 is reduced, the load on the operator P who operates the handle can be reduced.

In this embodiment, the buffer device 21 is disposed at a lower position than the support point 19, but may not be at the lower position. For example, it may be disposed in the middle of the flange member 12. In addition, the shock absorber 21 may be omitted and the snow removing plate 11 may be directly attached to the eaves member 12 in view of the type of snow to be used, work conditions, and cost.
In the figure, 23 is an engine as a drive source, 24 is a reduction gear unit, 25 is a rear chain, and 26 is a scraper. The drive source 18 may be an electric motor.

  That is, the snowplow 10 according to the present embodiment includes a wheel 17 having a drive source 18, a body frame 15 that supports the drive source 18 and the wheel 17, and a saddle member that is attached to the front portion of the body frame 15 at an angle. 12, a handle 13 attached to the upper end 12 b of the eaves member 12, and a snow removal plate 11 provided on the lower end 12 a of the eaves member 12 for carrying out the work of scraping snow on the road. And the snow removal board 11 is formed with the elastic member 30 so that it may vibrate when it contacts the hard snow mass and ice mass of the snow removal surface 39, It is characterized by the above-mentioned.

  FIG. 2 is a plan view of the snowplow according to the present invention. From the front to the rear, the snow removal plate 11 and the eaves member 12 are attached to the snow removal plate 11, and the handle 13 is extended to the left and right of the upper end 12b of the eaves member 12. . Further, an aluminum body frame 15 is extended rearward from the flange member 12, and the engine 23 and the reduction gear unit 24 are suspended on the frame 15. This engine 23 employs an engine that does not interfere with performance and the like even if it is tilted forward, backward, left and right.

31 is a brake cable, 32 is a transmission cable, 33 is a throttle cable, and 34 is a chain cover.
A brake lever 35 and a reduction gear unit changeover switch (not shown) are attached to the left end portion of the handle 13. Further, the right end portion of the handle 13 also serves as a throttle lever 36.

  The tire 37 constituting the wheel 17 is preferably a rubber snow tire. In order to increase the grip on the road surface of the tire, it is possible to embed metal pieces in the tire or to add anti-slip means such as a tire chain.

FIG. 3 is a view taken in the direction of arrow 3 in FIG. 1 and is a view of the snowplow of the present invention as viewed from the front.
The snow removal machine 10 includes a snow removal plate 11 disposed so that the lower side 11a contacts the snow removal surface 39, a flange member 12 extending upward from the snow removal plate 11 via a shock absorber 21 (see FIG. 1), A handle 13 that is distributed and extended equally on the upper end 12 b of the member 12, a body frame 15 that extends in the direction of the back of the figure in the middle of the saddle member 12, and an engine 23 that is mounted on the body frame 15 are provided.

  The drive system includes an output gear 42 of the engine output shaft 41, an input gear 44 attached to the input shaft 43 of the reduction gear unit 24, and a front chain 45 spanned between the input gear 44 and the output gear 42. Prepare. And the rear chain 25 spanned between the output of the reduction gear unit 24 and the sprocket 46 of the wheel 17 (refer FIG. 2) is provided.

Since the eaves member 12 is provided in the center of the body frame 15, the engine 23 and the speed reducer unit 24 are disposed on the body frame 15 with a good left / right weight balance, and the handle 13 is distributed equally from the eaves member 12 to the left and right. In the solid object removal work and the transfer work, the worker P operates the left and right handles 13 and easily balances the snowplow 10, so that extremely good operability can be ensured.
As a result, the burden on the operator related to snow removal can be significantly reduced.

  In addition, according to the snow remover of the present embodiment, since it is a lightweight and compact structure, it is excellent in mobility, such as being able to bring it into a narrow passage that cannot be entered by a conventional snow remover or a snow dozer.

  In addition, the shape and material of the snow removal plate can be freely selected, and the force applied to the snow removal plate can be finely adjusted by the throttle lever, so snow removal on rough terrain, which was a major limitation with conventional mechanical snow removal machines, is possible. It is also possible to remove snow without damaging the road surface in which the decorative tiles are embedded. The length of the collar member 12 and the length of the handle can be arbitrarily set.

  4 is an enlarged view of four parts in FIG. 1. In the fitting portion between the vehicle body frame 15 and the eaves member 12, an elongate hole 51 is formed on the eaves member 12 side, and a connecting member 52 is inserted through the elongate hole 51. Fix it. This will be described in more detail in the next figure.

5 is a cross-sectional view taken along line 5-5 in FIG. 4, and a pair of arc-shaped long holes 51, 51 facing the cylindrical portion 54 on the side of the flange member 12 are opened, and connecting members are formed in these long holes 51, 51 52 is inserted. The connecting member 52 is a member having a flange 52a at one end and a split pin insertion hole 52b through which the split pin 55 is inserted at the other end.
The connecting member 52 is inserted into the elongated holes 51, 51, a washer 53 is passed through the other end of the connecting member 52, and a split pin 55 is inserted outside the washer 53 to prevent the collar portion 52 a from coming off.

That is, the eaves member 12 is attached to the vehicle body frame 15 so as to be rotatable within a predetermined angle range.
Since the eaves member 12 is attached to the vehicle body frame 15 so as to be rotatable within a range of a predetermined angle θ, the snow removing plate 11 attached to the eaves member 12 can easily scrape off solid objects such as snow not only forward but also diagonally forward. Can be scraped. In this embodiment, the value of θ is set to 60 °, that is, the handle turning angle is set to 30 ° on the left and right.
As a result, workability can be improved.

  In addition, the range of the predetermined angle in which the eaves member 12 can rotate with respect to the vehicle body frame 15 is arbitrary. That is, the angle θ that is the width in the longitudinal direction of the long hole opened in the cylindrical portion 54 can be arbitrarily set.

FIG. 6 is an enlarged view of 6 parts of FIG. 1 and shows that the snow removing plate 11 is attached to the tip of the eaves member 12. The snow removing plate 11 is configured to be detachable by bolts 57 and nuts 58.
The snow removal plate 11 is formed of an elastic member 30 so as to vibrate when it comes into contact with a hard snow mass or ice mass on the snow removal surface 39.
A jagged mountain portion 59 composed of a number of protrusions is formed at the tip of the snow removing plate 11. Then, a rubber scraper 26 is attached to the back side of the ridge 59 via a plurality of rivets 62 (... indicates a plurality, the same applies hereinafter).

The jagged mountain portion 59 is a portion provided to crush the frozen snow, and the scraper 26 is a member provided to smooth the snow that has passed through the jagged mountain portion 59.
The snow removing plate 11 is formed by an elastic member 30. The elastic member 30 may be made of a metal such as steel or aluminum, or may be made of a resin such as polycarbonate, and there is no restriction on the selection of the elastic member 30 due to the snow quality to be targeted. And

  FIG. 7 is an operation diagram of the snow remover (scraping snow), and the operator P prefers the throttle lever 36 and the gear of the speed reducer unit toward the snow S with the handle 13 and the snow remover 11 loaded thereon. And the drive source 18 is driven to move the snow removal board 11 forward.

  Since the vehicle body frame 15 is attached to the eaves member 12 constituting a part of the work machine 10, the vehicle body frame is provided with wheels 17, and driving force is applied to the work machine 10 by driving the wheels 17 by the drive source 18. A force for scraping or scraping off the snow S is not necessary.

  The snow removal plate 11 is configured to be tiltable back and forth about the shaft 17a of the wheel 17, and a tip portion 63 serving as the lower side 11a of the snow removal plate is disposed on the tangential direction with respect to the tilt of the vehicle body frame 15, so that the snow removal plate The center of the eaves member 12 is disposed along a tangent line passing through the tip portion 63.

  At this time, when the worker P pushes the handle 13 forward by θa, the direction of the front end portion 63 of the snow removal plate through the saddle member 12 with the vehicle body frame 15 as a fulcrum becomes an angle in a direction to dig deeper into the snow removal surface 39. On the contrary, when the operator P pulls the handle 13 backward by θb, the direction of the front end portion 63 of the snow removal plate becomes an angle that does not bite into the snow removal surface 39 as compared to when pushing forward. As described above, the operator P appropriately adjusts the direction of the tip portion 63 of the snow removal plate by pushing and pulling the handle 13 to induce the snow removal plate 11 to vibrate.

The tip portion 63 of the snow removal plate contacts the snow removal surface 39 from a substantially vertical direction, and the vehicle body frame 15 can tilt about the shaft 17a of the wheel 17, so that elastic deformation is likely to occur.
In the snow removal machine 10, vibration is generated in the snow removal board 11 by the balance of the snow removal board 11 in contact with the snow removal surface 39, the handle 13 gripped by the worker P, and the wheels 17 that transmit the driving force.

FIG. 8 is an operational view of the tip of the snow removal board.
In (a), the state just before the front-end | tip part 63 of a snow removal board contact | abuts the hard snow lump and ice lump of the snow removal surface 39 is shown. The snow removal plate 11 constituting the snow removal machine travels while contacting the snow removal surface 39.
In (b), the tip part 63 of a snow removal board shows the state which contact | abuts to the hard snow lump and ice lump of the snow removal surface 39, and deform | transforms. Since the snow removal plate 11 is formed of an elastic member, the tip portion 63 of the snow removal plate is slightly deformed as indicated by an imaginary line in the figure.

In (c), a repulsive force is generated at the tip portion 63 of the snow removal plate that is slightly deformed, repelling a hard snow mass or ice mass, and releasing the repulsive force to cause a slight deformation of the tip portion 63 of the snow removal plate. Return.
As the snow remover travels, the collision of the hard snow block or ice block with the snow removing plate 11 and the repulsion of each part of the snow removing plate 11 are repeated without interruption at the tip portion 63 of the snow removing plate 11, so that the snow removing plate 11 is vibrated. To do.
The action of vibration generated in the snow removal plate 11 facilitates the crushing of hard snow blocks and ice blocks.

That is, the snow removal performance of the snow removal machine can be easily improved with a simple configuration by the vibration generated in the snow removal plate 11 and the propulsive force applied to the snow removal plate 11.
By generating vibration in the snow removing plate 11, it is possible to facilitate the crushing of hard snow blocks and ice blocks and to prevent snow from adhering to the snow removing plate 11 and freezing.

  FIG. 9 is a diagram showing another embodiment of FIG. 1, and a snow removal device 77 constituted by an auger 73, an auger housing 74, a blower portion 75, a shooter 76 and the like is provided at the front portion of a machine body 72 that moves forward and backward by the power of a drive source 71. In the type of snow removal machine 10B, the snow removal plate 11B formed of the elastic member 30 is formed on the snow removal surface 39 so as to vibrate when coming into contact with the hard snow mass or ice mass of the snow removal surface 39 from the auger housing 74 at a position facing the snow removal surface. Indicates that it will be extended.

  The snowplow 10B includes a traveling device 81 at the lower part of the fuselage 72, an engine 82 attached to the upper part of the fuselage 72, a snow removal device 77 driven by the engine 82 at the front of the fuselage 72, and from the upper part of the fuselage 72 to the rear. This is a self-propelled walking type snow removal machine in which an operation handle 83 is extended, an operation panel 84 is attached in the vicinity of the operation handle 83, and an operator takes the operation handle 83 and walks from behind the operation panel 84.

The traveling device 81 includes a left drive wheel 85, a left idler wheel 86 is rotatably provided behind the drive wheel 85, and a left crawler belt 87 is provided on the left drive wheel 85 and the left idler wheel 86. Is wrapped around. Since the right-side traveling device is the same component as the left-side traveling device 81, the same reference numeral is assigned to each component member, and description thereof is omitted.
In this state, the snow removal work is performed by driving the snow removal device 77, that is, the auger 73 and the blower unit 75 with the engine 82.

  FIG. 10 is a view taken in the direction of arrow 10 in FIG. 9 and shows a state where the auger is removed in the snow removal device 77. From the auger housing 74 at a position facing the snow removal surface, a snow removal plate 11B formed of the elastic member 30 is extended from the auger housing 74 toward the snow removal surface 39 so as to vibrate when contacting the hard snow mass or ice mass of the snow removal surface 39.

Since the snow removal plate 11B that constitutes the snow removal machine travels in contact with the snow removal surface 39, the collision and repulsion of a hard snow mass or ice mass to the snow removal plate 11B can be made without interruption at the tip portion 63B of the snow removal plate. It repeats and a vibration generate | occur | produces in the snow removal board 11B.
The action of vibration generated in the snow removal plate 11B facilitates the crushing of hard snow blocks and ice blocks.
As a result, snow removal performance can be easily improved with a simple configuration.

In addition to the embodiment, claim 1 may replace the snow removal board with a snow removal dozer.
Further, it is assumed that there is no restriction on the size of the snowplow having the auger housing.

  The present invention is suitable for a snowplow.

1 is a front view of a snowplow according to the present invention. 1 is a plan view of a snowplow according to the present invention. FIG. 3 is a view taken in the direction of arrow 3 in FIG. 1. FIG. 4 is an enlarged view of part 4 of FIG. 1. FIG. 5 is a sectional view taken along line 5-5 of FIG. FIG. 6 is an enlarged view of 6 parts in FIG. 1. It is an action figure (state which collects snow) of a snowblower. It is an effect | action figure of the front-end | tip part of a snow removal board. It is another Example figure of FIG. FIG. 10 is a view taken in the direction of arrow 10 in FIG. 9. It is a figure explaining the basic composition of the conventional technology.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Snow removal machine, 11 ... Snow removal board, 12 ... Hoe member, 12b ... Lower end of eaves member, 13 ... Handle, 15 ... Body frame, 17 ... Wheel, 18 ... Drive source, 21 ... Shock absorber, 23 ... Engine, 39 ... snow removal surface, 63 ... tip of snow removal board.

Claims (1)

In the snow remover provided with a snow removal plate in the front part of the body frame that moves forward and backward by the power of the drive source,
The snow remover is formed of an elastic member so as to vibrate when coming in contact with a hard snow block or ice block on the snow removal surface.

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