JPH0535157Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a snow throwing type snow blower equipped with a snow throwing chute.

[Conventional technology]

This type of snow blower generally has a snow collection auger and a snow blower installed at the front of the traveling machine, and a snow throw chute that protrudes upward from the rear upper part of the housing that covers the back of the auger and blower. ing.

The snow-throwing chute is generally formed in a gutter-like cross section that is open towards the snow-throwing direction, and a cylindrical body is provided at the bottom of the chute, either integrally or separately, to prevent the thrown snow from directly hitting the housing or its vicinity. I'm here.

However, especially in the case of wet snow, snow tends to accumulate on the inner surface of the cylinder, and the snow may accumulate and clog the chute. Conventionally, it has been known to always have a shovel or protrusion in the aircraft to break up the packed snow (for example, in the 1980s
(Refer to Publication No.-51820 and Japanese Utility Model Application Publication No. 59-61321).

[The problem that the idea aims to solve]

However, since the cylindrical body is located at the rear upper part of the housing that covers the back of the snow collecting auger and the snow throwing blower, there are problems such as difficulty in clearing the snow inside the cylindrical body.

The present invention was proposed in view of the above-mentioned problems, and an object of the present invention is to provide a snow blower that can easily remove snow stuck in a cylinder at the bottom of a snow throwing chute.

[Means to solve the problem]

In order to achieve the above object, the present invention has the following configuration. That is, in the snow throwing type snow blower equipped with the snow throwing chute 5, the snow throwing chute 5 is
A cylindrical body 8 is detachably provided on the lower inner surface of the cylindrical body 8, and a substantially U-shaped handle 10 for attaching and detaching the cylindrical body 8 is provided at both ends thereof with bent portions 10a, 10a formed outward in opposite directions as fulcrums. It is attached to the cylinder body 8 so that it can be raised up and down, and the above-mentioned bent portions 10 at both ends are attached.
The snow throwing chute 5 is provided with a locking hole 14a into which the tubes 10a and 10a can be freely inserted and removed to lock the cylindrical body 8 in a manner that prevents it from coming off. , 10a to the locking hole 14a, 1
4a is characterized in that it is configured to allow the system to escape.

[Function] During normal times, the cylinder 8 is attached to a predetermined position on the inner surface of the lower part of the snow throwing chute, and when the handle 10 is tilted downward, the bent portions 10a and 10a at both ends are engaged with the snow throwing chute 5. By engaging with the holes 14a, 14a, the cylindrical body 8 is fixed to the snow throwing chute 5 so as not to come off.

When the cylindrical body 8 is clogged with snow, the handle 10
By raising the handle 10 upward, the engagement between the bent portions 10a, 10a at both ends and the locking holes 14a, 14a is released, and while holding the handle 10, the cylinder 8 is released.
By removing the snow from the snow throwing chute 5, the snow stuck inside the cylinder 8 can be taken out and removed together with the cylinder 8.

〔Example〕

Hereinafter, the present invention will be specifically explained based on the embodiments shown in the drawings.

The illustrated example includes a covering belt 1A at the bottom of the traveling body 1,
This is applied to a walking type snow blower having a handle 1B at the rear of the machine. However, it can also be applied to riding-type and other snow removal machines.

A snow-collecting auger 2 and a snow-throwing blower 3 are arranged at the front of the traveling body 1, and a snow-throwing chute 5 projecting upward is provided at the rear upper part of a housing 4 that covers the back of the auger 2 and the blower 3. It is being

The auger 2 and the blower 3 are rotationally driven by the engine E, and the snow scraped by the auger 2 is discharged upward from the snow chute 5 by the blower 3.

The snow throwing chute 5 is formed in the shape of a gutter with a substantially U-shaped cross section, and is rotatably attached to the rear upper part of the housing 4. A gear 6 is integrally provided in the shape of a flange at the lower end of the snow throwing chute 5, and by rotating a worm 7 that meshes with the gear 6,
The opening direction of the chute 5 can be changed via the gear 6.

At the lower part of the snow throwing chute 5, a cylindrical body 8 that is in close contact with the inner surface of the chute 5 above the gear 6 is attached so as to be removable in the lateral direction. Reference numeral 9 denotes a positioning protrusion for the cylindrical body 8.

At the upper part of the front side of the cylinder body 8, there is a substantially U-shaped handle 10 for attaching and detaching the cylinder body 8 to a support member 11.
It is installed so that it can be raised and lowered via the As shown in FIG.
Both end portions 10a, 10a of the support member 11 are bent outward and inserted into annular end plates 11a, 11a integrally provided at both end portions of the support member 11 so as to be rotatable and freely move forward and backward. 13 is a stopper for lowering the handle 10.

Also, the bent portions 10a at both ends of the U-shaped handle 10,
On the outside of 10a, there are bent portions 10a, 10 at both ends.
A locking member 14 having an engaging hole 14a into which the handle 10 can be freely pulled out and fitted is integrally provided on the side surface of the chute 5, and the locking member 14 is connected to the up and down movement of the handle 10 by the cam grooves 12, 12. The bent portions 10a, 10a at both ends of the letter-shaped handle 10 move forward and backward into the engagement hole 1.
4a, 14a.
Note that the engagement hole 14a can also be formed on the side surface of the chute.

In the above configuration, in normal times, the cylinder body 8 is attached to the lower inner surface of the snow throwing chute 5 as shown by the solid line in FIG.
Positioning protrusion 9 with its lower end in contact with the upper surface of gear 6
to fix the position. Then, the U-shaped handle 10 is tilted downward as shown in the figure, and the bent portions 10a, 10a at both ends of the U-shaped handle 10 are advanced outward by the cam groove 12, and engaged with the locking hole 14a of the locking member 14. As a result, the cylindrical body 8 is fixed to a predetermined position on the inner surface of the lower part of the chute 5 so as not to come off.

In particular, the cylinder 8 in the illustrated example is formed to have a slightly larger diameter than the inner diameter of the chute 5 before installation, and when the cylinder 8 is reduced in diameter by the vertical slit 8a provided on the back side. By being fitted into the chute 5, it is configured to elastically adhere to the inner surface of the chute, whereby snow enters between the cylindrical body 8 and the chute 5 and freezes and solidifies, causing the cylindrical body 8
prevents it from becoming unremovable.

When the cylindrical body 8 becomes clogged with snow, when the handle 10 is pulled upward, the bent portions 10a, 10a at both ends move toward each other due to the cam grooves 12, 12, and the snow is removed from the locking holes 14a, 14a. The engagement is released by moving backward. In this state, by pulling out the cylinder 8 from the chute 5 while holding the handle 10,
The clogged snow is taken out together with the cylinder 8 and can be easily removed.

In particular, the cylinder 8 in the illustrated example is loaded into the chute 5 with its diameter contracted when installed as described above, so when it is taken out from the chute 5, the cylinder 8 expands a little, and the cylinder 8 slightly expands. Since it is formed to spread downward, it is easy to remove packed snow.

Incidentally, snow adhering to the top and bottom of the cylindrical body mounting position in the snow throwing chute 5 can be easily removed with a stick or the like by removing the cylindrical body 8.

In this case, if you carelessly remove the clogged snow while the engine is running, you may accidentally touch the blower or the remaining snow may suddenly be ejected, so when the cylinder body 8 is removed, the It is desirable to stop engine E.

In a diesel engine, the means for stopping the engine is to stop fuel injection into the combustion chamber using, for example, a solenoid valve. In the case of a gasoline engine, for example, the ignition circuit is cut off to stop the engine.

This embodiment is applied to a diesel engine, and an open/close switch 15 of a solenoid valve (not shown) for stopping fuel injection is attached via a bracket 16 to the side of the chute above the cylinder pair 8, and the switch 15 is operated. An operating member 17 is integrally provided on the upper part of the cylindrical body 8. Reference numeral 18 denotes a switch operator provided on the switch 15 so as to be freely retractable, and as shown in FIG. 7, it is always urged by a compression spring 19 in the direction of protruding outward. The operator 18 is integrally provided with a conductor 20 and an insulator 21. 22a and 22b are a pair of switch terminals that selectively contact the conductor 20 and the insulator 21, and lead wires 23a and 23b from the power supply circuit of the solenoid valve are connected to both terminals 22a and 22b. .

When the cylindrical body 8 is attached to the predetermined position at the bottom of the chute, the operating member 17 is moved to the operating element 18 as shown in FIG.
is pressed against the spring 19, and an insulator 21 is interposed between both switch terminals 22a and 22b, cutting off current to the solenoid valve, and the solenoid valve is in an open state. This allows fuel injection into the combustion chamber and the engine is ready for operation.

When the cylinder 8 is removed with the engine running, the operating member 17 separates from the operator 18, and the operator 18 moves forward to the left in FIG. is located, the solenoid valve is energized, the solenoid valve is closed, fuel injection into the combustion chamber is cut off, and the engine E is stopped. In the figure, 24 is a switch cover that covers the upper part of the switch 15. In addition, in the case of a gasoline engine, when the cylinder body 8 is removed, the switch 1
5, the engine is configured to be stopped by, for example, cutting off the ignition circuit.

[Effect of idea]

As explained above, in the present invention, a U-shaped handle 10 for attaching and detaching the cylinder body 8 is provided on the cylinder body 8 so that it can be raised and lowered, and in conjunction with the raising and lowering operation of the handle 10, the bent portions 10a at both ends, 10a is adapted to be engaged and disengaged from the locking hole 14a of the snow throwing chute 5, so that when snow becomes clogged in the cylinder 8, the bent portions 10a at both ends can be unlatched by pulling up the handle 10. By releasing the engagement with the stop hole 14a and pulling out the cylinder 8 from the chute 5 while holding the handle 10,
The cylindrical body 8 can be removed with one touch, which has the effect of allowing clogged snow to be removed easily and quickly.

[Brief explanation of the drawing]

Fig. 1 is a side view of a snow throwing type snow blower showing an embodiment of the present invention, Fig. 2 is a perspective view of its main parts, Fig. 3 is a cross-sectional plan view thereof, and Fig. 4 is an enlarged view of the handle attachment part. figure,
FIG. 5 is a cross-sectional bottom view, FIG. 6 is a side view of the main parts, and FIG. 7 is an enlarged side view of the engine stop switch arrangement section. 1 is a traveling body, 2 is a snow collecting auger, 3 is a snow blower, 4 is a housing, 5 is a snow throwing chute, 8 is a cylinder body, 10 is a handle, 10a, 10a are bent portions at both ends,
11 is a support member, 12 is a cam groove (long hole), 14 is a locking member, and 14a is a locking hole.

Claims (1)

[Scope of utility model registration request] In a snow blower equipped with a snow throw chute,
A cylindrical body is removably installed on the inner surface of the lower part of the snow throwing chute, and a substantially U-shaped handle for attaching and detaching the cylindrical body is used as a fulcrum at bent portions formed outward in opposite directions at both ends of the handle. In addition to being attached to the cylindrical body so that it can be raised and lowered up and down, the snow throwing chute is provided with a locking hole that locks the cylindrical body by fitting the above-mentioned bent portions at both ends so that the cylindrical body can be inserted and removed, and the above-mentioned handle can be raised and lowered. A snow throwing type snow blower characterized in that the bent portions at both ends of the snow blower are configured to be engaged with and disengaged from a locking hole in conjunction with a locking hole.