JPS62194309A - Snow throwing chute revolving apparatus of snow removing machine - Google Patents

Abstract

(57) [Summary] 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 rotating device for a snow throwing chute for throwing snow blown away by a snow blower body from a snow accumulation position in a desired direction during snow removal work. .

(Prior Art) Generally, in a snow blower, a snow blower body is provided at the front of the vehicle body in front of an engine supported by the snow blower body, and a snow throwing chute is provided to guide the snow blown away by the snow blower body. . Further, a main handle for operating the snow blower is protruded from the rear end of the vehicle body, and an operator grasps the main handle to perform snow removal work using the snow blower.

Further, in the above configuration, in order to enable the blown snow to be thrown toward a desired location, a snow throwing chute rotation device is provided for rotating the snow throwing chute in a desired direction.

Some of the above devices are configured as follows. That is,
The snow-throwing chute is rotatably supported around a vertical axis, and a rotating operation handle of the snow-throwing chute is attached to the main handle. In this case, since the engine is located between the snow-throwing chute and the operating handle, the snow-throwing chute and the operating handle are interlocked and connected by an interlocking shaft and a universal joint, so that the interlocking shaft bypasses the engine. The universal joint connecting these interlocking shafts is bent.

(Problems to be Solved by the Invention) By the way, among the universal joints described in -1-, the universal joint located at the lowest position is bent to have a valley-like shape. For this reason, snow removal to the universal joint (1) tends to stay there, and the snow accumulation at this universal joint gradually increases. Therefore, due to this snow accumulation, the I-type universal joint is likely to freeze, and as a result, there is a possibility that the rotating operation of the operating handle is obstructed and the snow-throwing chute cannot be smoothly rotated.

(Eleventh object of the invention) This invention was made in view of the situation described in L, and is designed to prevent the turning operation of the operating handle from being damaged by freezing of the universal joint f connecting the interlocking shaft. Objective 1 is to ensure smooth rotation of the snow throwing chute.

(Structure of the Invention) A feature of the present invention for achieving the object No. 18 is that among the plurality of universal joints provided for interlocking and connecting the snow throwing chute and the operating handle, the universal joint located at the outermost position The point is that the universal joint is located below the engine components that protrude outward.

(Example) Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In the figure, l is a snow blower, and an arrow Fr in the figure indicates the front of this snow blower l. This snow blower 1 includes a vehicle body frame 2 as a vehicle body, a traveling section 3 that supports the vehicle body frame 2 and is capable of traveling on a road surface -L, and -1- vehicle body frame 2.
The snow blower main body 4 is provided at the front of the snow blower, and the engine 5 is supported at the rear of the two-body frame 2. Furthermore, a pair of left and right main handles 7.7 are provided at the rear end of the no-body frame 2 to protrude toward the rear -L direction. Snow removal work using the snow blower 1 is performed by the operator grasping the handle 7.7.

To explain the running section 3, the running section 3 has a running section frame 8, a drive shaft 9 is supported at the front part of the running section frame 8, and drive wheels are mounted at both ends of the drive shaft 9, respectively. ], 0, and 10 will be investigated. on the other hand,
A driven shaft 11 is attached to the rear part of the running section frame 8, and driven wheels 12.
12 is supported. In addition, these driving wheels 10 and driven wheels 1
Rubber crawlers 13 and 13 are wrapped around each of 2 and 2, respectively. The drive wheels 10 are driven by the engine 5 via a power transmission device (not shown), thereby causing the crawler 13 to roll on the road surface, and the traveling section 3 to travel on this road surface.

- On the other hand, the snow blower 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, an auger 15 that crushes snow by rotating around an axis extending in the vehicle width direction is supported at the front end of the vehicle body frame 2 indicated by -F. A snow collection cover 16 is provided to cover the rear of this auger 15 and collect snow crushed by this auger 15.
5 and the snow collecting cover 16 constitute a snow collecting mechanism.

Further, a rotary blade 17 is provided for blowing off the snow collected by the snow collection cover 16, and the auger 15 and the rotary blade 17 are connected to and driven by the engine 5, respectively. Furthermore, a casing 18 that covers the rotating blade 17 is provided on the vehicle body frame 2 in front of the engine 5, and a snow chute 20 that guides snow from the rotating blade 17 in a desired direction is provided on the casing 18. . The rotating blade 17, the casing 18, and the snow-throwing chute 20 constitute a snow-throwing mechanism.

- On the other hand, the engine 5 has an air cleaner 21 connected to the intake section at the front left side toward the front Fr and protruding outward.
and an exhaust device 22 that is connected to the left rear exhaust section of the L engine 5 and protrudes outward.
2 is composed of an exhaust pipe and a muffler 23 (not shown). Furthermore, since the exhaust gas from the engine 5 passes through the muffler 23 and the temperature becomes high, the muffler 23 is covered with a muffler force 24 at the muffler 23. 25 is a fuel tank.

Further, the snow blower I is provided with a rotating device 27 for the snow throwing chute 20 so that the snow throwing direction can be arbitrarily selected.

That is, the snow-throwing chute 20 is supported on a casing 18, which is the front part of the vehicle body, so as to be rotatable around a vertical axis. It is supported by 7. A worm gear 29 is provided at the end of the snow throwing chute 20.

This worm gear 29 is coaxial with the rotating shaft of the snow throwing chute 20 -1-, and includes a worm wheel 30 attached to the lower end of the snow throwing chute 20, and a worm 31 supported on the casing 18 side and meshing with the worm wheel 3o.
It consists of

-1- A plurality of first to fourth interlocking shafts 32 to 35 are arranged in a row between the worm 31 and the operating handle 28, and these shafts 32 to 35 are connected by a universal joint 41, 41'. In this case, the front part of the first interlocking shaft 32 also serves as the center axis of the worm 31, and the rear part of the fourth interlocking shaft 35 also serves as the center axis of the operating handle 28. And these interlocking shafts 32 to 3
5 is disposed so as to pass below the air cleaner 21 and the exhaust system W22.

That is, the first stay 36 is attached to the left side of one end of the casing 18.
is provided protrudingly from the first stay 36, and the worm 31 is attached to the first stay 36.
The front end of the first interlocking shaft 32 is pivotally supported so as to sandwich it in the axial direction. On the other hand, below the air cleaner 21, the vehicle body frame 2
A second stay 37 is provided protruding from the left side surface, and this second stay 3
7, the rear end of the first interlocking shaft 32 is pivotally supported. Also,
A third stay 38 is protruded from the left side surface of the rear end of the vehicle body frame 2 below the exhaust device 22, and the rear end of the second interlocking shaft 33 is pivotally supported by the third stay 38. Further, a fourth stay 39 is protruded from the lower part of the left main handle 7, and the lower end of the fourth interlocking shaft 35 is pivotally supported by the fourth stay 39. Of the plurality of universal joints 41 and 41' connecting the interlocking shafts 32 to 35, the universal joint 41 located at the lowest position is located below the air cleaner 21, which is a component of the engine 5, and is located on the lower surface of the air cleaner 21. located nearby.

Then, when the operation handle 28 is rotated a predetermined number of times (
The worm wheel 30 is rotated by the worm 31 (indicated by the symbol R in the figure), and the snow-throwing chute 20 is thereby rotated to a desired angle (indicated by the symbol T in the figure).
.

In addition, in the structure shown in "-", since the operation handle 28 and the worm gear 29 are interlocked and connected by a large number of interlocking shafts 32 to 35, a universal joint 41.
The bending angle at 41' can be made smaller. Therefore, the operability of the operating handle 28 can be maintained well, and the rotating device 27 allows the snow throwing chute 20 to be
can be rotated smoothly.

Furthermore, since the interlocking shafts 32 to 35 do not cross the front surface of the air cleaner 21, these interlocking shafts 32 to 35 are prevented from interfering with the maintenance space of the air cleaner 21. Therefore, the maintainability of this air cleaner 21 can be maintained well.

(Effects of the Invention) According to the present invention, among the plurality of universal joints provided for interlocking the snow-throwing chute and the operating handle, the lowest universal joint is the engine component that protrudes outward. Since it is disposed downward, one side of the universal joint is covered by the engine component, preventing snow from accumulating directly on the universal joint, thereby suppressing snow accumulation on the universal joint. Therefore, freezing at the universal joint is prevented, and as a result, smooth rotation of the snow throwing chute by rotating the operating handle is ensured, and any snow throwing direction can be selected with smooth operation during snow removal work. .

Moreover, since the anti-freezing of the universal joint utilizes engine components, there is an advantage that the above-mentioned operational effects can be obtained with a simple structure.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, with FIG. 1 being an overall side view of the snow remover, and FIG. 2 being an overall front partial sectional view of the snow remover. 1. Snow blower, 2. Body frame (heavy), 5. Takashi engine, 18. e-casing ('JR4 front), 20.
・Snow throwing chute, 21・o air cleaner (engine component), 27・・rotating device, 28−・operation handle, 3
2 to 35-・first to fourth interlocking shafts, 41-・universal joint located at the bottom.

Claims (1)

[Claims] 1. A snow-throwing chute is rotatably supported in front of the engine supported by the vehicle body, and an operation handle for rotating the snow-throwing chute is provided behind the engine, and the snow-throwing chute is operated with the snow-throwing chute. In a snow thrower chute rotating device for a snow blower in which the handle is interlocked and connected to the handle by an interlocking shaft and a universal joint, the engine has a plurality of universal joints, and the lowest universal joint among these universal joints protrudes outward. A snow thrower chute rotating device for a snow blower, characterized in that it is arranged below the parts.