JPS6332007A - Thrown snow guide apparatus of snow removing machine - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a snow guide device for a snow blower.

(Prior Art) Conventionally, snow blowers are provided with a snow throwing chute that guides snow blown up by a blower from a snow accumulation position in a predetermined direction in order to be able to throw accumulated snow toward a desired location. ing. Some snow throwing chutes are made of sheet metal to maintain a certain level of strength, and the inner surface of the chute serves as a guide surface for guiding snow.

(Problems to be Solved by the Invention) By the way, in the conventional configuration described above, since the snow throwing chute is made of sheet metal, the coefficient of friction of the snow against the guide surface is large. For this reason, it is difficult to throw snow sufficiently far from the snow blower, and the range in which snow can be thrown is limited. However, this is not preferable for snow removal work.

Also, when snow is thrown, stones, ice, etc. may be mixed into the snow, but in this case, since the snow throwing chute is made of sheet metal,
When the stones and the like collide with this snow chute, the impact is large. Therefore.

For example, there is a risk that the paint on this snow-throwing chute may peel off.

(Objective of the Invention) This invention was made in view of the above-mentioned circumstances, and is designed to allow a sufficiently wide range of snow to be thrown, and to reduce the impact caused when stones, etc. collide with the snow throwing chute. The purpose is to buffer and protect this.

(Structure of the Invention) The present invention for achieving the above object is characterized by providing a snow throwing chute that guides snow blown up from a snow removal position in a predetermined direction; The reason is that the surface is lined with resin.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

1 is a snow blower, and an arrow Fr in FIG. 1 indicates the front of the snow blower 1. Reference numeral 2 denotes a vehicle body frame, and this vehicle body frame 2 is supported by a traveling section 3, and this traveling section 3 is capable of traveling on a snow removal work surface.

Further, a snow blower main body 4 is supported at the front part of the vehicle body frame 2, and an engine 5 supported by the vehicle body frame 2 drives the traveling section 3 and the snow remover main body 4. A pair of left and right handles 6.6 are provided at the rear end of the vehicle body frame 2.
is provided in a protruding manner, and snow removal work by the snow blower 1 is performed by the operator grasping the /% handle 6.6.

The running section 3 includes a drive wheel 8 driven by an engine 5, a driven wheel 9 located behind the drive wheel 8, and both wheels 8.
．． It has a crawler 10 that is wound around the roller 9. When the drive wheels 8 are driven by the engine 5, the crawler lO rolls on the work surface, and thereby the traveling section 3 travels on the work surface.

The snow remover main body 4 is a two-stage type having a snow collecting mechanism and a snow throwing mechanism, each of which is configured as follows.

That is, in the snow collecting mechanism, a snow-crushing auger 11 that rotates around an axis extending in the vehicle width direction is provided at the front end of the vehicle body frame 2.
I support this. On the other hand, a drive shaft 12 is provided that extends forward from within the vehicle body frame 2.
The rear end of the vehicle is driven by the engine 5 via a reduction gear (not shown).

The auger 11 is interlocked with the front end of the drive shaft 12, and the auger 11 is driven to crush accumulated snow. Further, a snow collecting cover 13 is provided to cover the rear of the auger 11, and this snow collecting cover 13 collects the snow crushed by the auger 11 to the central part in the vehicle width direction as the running section 3 moves forward.

On the other hand, in the snow throwing mechanism, snow is crushed by the auger 11,
A snow-throwing chute 14 throws the snow collected by the snow-collecting cover 13.
A blower 15 is provided to send air together with the air.

The snow-throwing chute 14 guides the snow in a predetermined direction and releases it.

To explain the blower 15, the blower 15 has a cylindrical box-shaped casing 16 whose axis extends in the front-rear direction. This casing 16 is connected to the rear surface of the center part in the vehicle width direction of the snow collecting cover 13.
The front end of the snow collecting cover 13 is opened toward the auger 11 inside the snow collecting cover 13. Further, a discharge pipe 17 having a circular cross section is provided on the outer peripheral surface of the casing 16, and the inside of this discharge pipe 17 serves as a discharge port 18. This discharge pipe 17 is connected to the casing 16
It extends upward in the tangential direction and is provided on the left side of the casing 16. The snow throwing chute 14 is this discharge pipe 17.
The lower part of this snow-throwing chute 14 and the outlet 1
8 is in communication.

A rotary blade 19 is provided within the casing 16 coaxially with the casing 16 . The rotary blade 19 includes a boss portion 21 fitted onto the drive shaft 12, and a boss portion 21 that is fitted onto the drive shaft 12.
The rotary plate 22 is supported by a rotary plate 22, and three blade base bodies 23 extend over and protrude from the boss portion 21 and the rotary plate 22, and the blade base bodies 23 are arranged at equal intervals in the circumferential direction.

When the auger 11 is driven by the drive shaft 12, the rotary blades 19 rotate along with the drive shaft 12. At this time, the rotating blade 19 rotates counterclockwise when viewed from the front, blows up the snow collected by the snow collecting cover 13 together with air, and blows it up through the discharge port 18 to the snow throwing chute 14.
send to.

The snow throwing chute 14 is supported on a discharge pipe 17 so as to be rotatable about a vertical axis. This snow-throwing shoe) 14 is connected to the handle 6 via a worm gear 28 and a universal joint shaft 29.
The operating lever 8-30 is supported by the 8-30. By rotating this operating lever 30 (arrow R in Fig. 1.2), the snow-throwing chute 14 can be rotated in the desired direction (arrow T in Fig. 1.2), thereby throwing snow. The direction can be selected arbitrarily.

The snow throwing chute 14 is formed into a U-shaped cross section by sheet metal processing of a steel plate, and its inner surface serves as a guide surface 14a for guiding snow blown up from the blower 15.

Then, a resin lining material 31 such as ultra-high density polyethylene is coated on this guide surface 14a. Therefore, the coefficient of friction of the snow when guided to the snow throwing chute 14 is reduced, so that the snow can be thrown a sufficiently long distance.

Furthermore, even if stones or the like are mixed into the snow during snow throwing, when the stones are about to collide with the snow throwing chute 14, the elasticity of the lining material 31 buffers this impact.
Therefore, the snow throwing chute 14 is protected from impacts caused by these stones and the like.

In the above case, the lining material 31 may be an anti-icing agent, and this composition is, for example, a combination of organopolysiloxane as a pace polymer and a special organic and inorganic composite compound, and the coating film is has a structure in which a hydrophilic portion is contained within a hydrophobic matrix of silicone resin. In this case, this coating film acts to absorb a certain amount of water from its surface, so even if snowflakes try to attach to the coating surface, the hydrogen bonding force between them is weak, thus preventing icing. be done. For this reason, snow throwing shoes)
Since the surface of the lining material 31 on the guide surface 14a of the guide surface 14 is kept smooth even at low temperatures, the coefficient of friction of snow can be reduced.

Further, a guide surface 14 at the base of the snow throwing chute 14
A cover unit 32 is provided to close the opening of a. This integral cover 32 prevents foreign matter from outside the machine from getting into the casing 16 through the snow throwing chute 14 and the discharge port 18. This cover unit 32 is formed by folding an elastic wire up and down. The cover unit 32 is supported by the snow-throwing chute 14 by elastically fitting the locking protrusion 33 into the locking hole 34 formed in the snow-throwing chute 14. By elastically deforming the cover unit 32 so as to reduce it in its width direction, the engagement of the locking protrusion 33 into the locking hole 34 can be released, thereby removing the cover unit 32 from the snow throwing shoe 14. be able to.

(Effects of the Invention) According to the present invention, since the guide surface of the snow-throwing chute is coated with a resin lining, the coefficient of friction of snow guided by the snow-throwing chute is lower than that of the prior art. Therefore, since snow can be thrown far enough away with the same power, the range in which snow can be thrown can be made sufficiently wide, which is beneficial for snow removal work.

In addition, even if stones or the like are mixed into the snow during snow throwing, if the stones are about to collide with the snow throwing chute, the lining material applied to the guide surface of the snow throwing chute will buffer this impact, e.g. The snow-throwing chute is protected by preventing the paint on the snow-throwing chute from peeling off. As a result,
Improved durability of the snow chute is achieved.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, and FIG. 1 is a side partial cross-sectional view of the snow blower, FIG. 2 is a front partial cross-sectional view of the same snow blower, and FIG.
The figure is a cross-sectional view taken along the line ■-m in FIG. 1. 1. Snow blower, 14. Snow throwing chute, 14a. Guide surface, 31. Φ lining material. Patent applicant Yamaha Motor Co., Ltd. Figure 3

Claims (1)

[Claims] 1. A snow blower characterized by having a metal snow throwing chute that guides snow blown up from a snowfall position in a predetermined direction, and having a resin lining on the guide surface for guiding the snow. Snow guiding device.