Snowblower

• US 5,438,770 A
• Filed: 08/20/1993
• Issued: 08/08/1995
• Est. Priority Date: 08/20/1993
• Status: Expired due to Fees

• Current Assignee: Miller, Donald L.
• Original Assignee: Miller, Donald L.
• Inventors: Miller, Donald L.
• Primary Examiner(s): Reese, Randolph A.
• Assistant Examiner(s): BATSON, VICTOR D
• Application Number:
  US08/109,836
• Time in Patent Office: 718 Days
• Field of Search: 74/89.22, 37/232, 37/233, 37/243, 37/244, 37/253, 37/254, 37/256, 37/257, 37/258, 37/247, 37/248, 37/249, 37/250, 37/251, 180/9.21, 180/9.26, 180/9.28, 180/9.3
• US Class Current: 37/227
• CPC Class Codes: E01H 5/04 Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged materialE01H5/10, E01H5/12 take precedence
• CPC Class Codes: E01H 5/045 Means per se for conveying or discharging the dislodged material, e.g. rotary impellers, discharge chutes dislodging apparatus provided therewith E01H5/07, E01H5/08, E01H5/104, E01H5/12

Abstract

An apparatus for improving the steering of a wheeled or track-driven machine, such as a snowblower, the apparatus having a levered wheel mounted to the frame of the snowblower and actuated using an idler wheel connected to the levered wheel via a cable and pulley system; when actuated the levered wheel raises one side of the snowblower and provides a pivot point about which the other side of the snowblower can be pivoted. An apparatus for deflecting the hot exhaust of the snowblower'"'"'s engine into the base of the snow exhaust chute to prevent and clear clogs therein and an adjustable apparatus for partially covering the opening of the auger housing to effect the force applied to the snow to be collected and cleared through the snow exhaust chute are also provided.

Claims

1. An apparatus for the steering of a wheeled or a track-driven machine having a frame, said machine adapted to be operated on a ground surface, said machine having a handling bar, a first side, and an oppositely disposed second side, said first side of said machine having a first mobilizing means and said second side of said machine having a second mobilizing means, said apparatus comprising:

at least one levered wheel attached to said first side of said machine; and

means for moving said at least one levered wheel between a first position in which said first mobilizing means does not engage said ground surface and a second position in which said at least one levered wheel engages said ground surface such that said first side of said machine is elevated from said ground, said first mobilizing means does not contact said ground surface, and said second side of said machine is substantially pivoted about said at least one levered wheel.

2. The apparatus of claim 1 further comprising:

a first levered wheel of said at least one levered wheel located on said first side of said machine;

a second levered wheel of said at least one levered wheel located on said second side of said machine; and

wherein said means for moving said at least one levered wheel between said first and said second positions comprises;

means for selectively operating each said first and said second levered wheels between respective first positions and second positions, said operating means independently connected to said first and said second levered wheels.

3. The apparatus of claim 2 wherein said first and said second mobilizing means each comprises a wheel attached to said machine;

wherein said first levered wheel is positioned between said first mobilizing means and said frame and said second levered wheel is positioned between said second mobilizing means and said frame, said apparatus further comprising;

means for attaching said operating means to said first and said second levered wheels;

first means for locking said first levered wheel in said first position; and

second means for locking said second levered wheel in said first position.

4. The apparatus of claim 3 wherein said operating means comprises:

a rod having a first end connected to said handling bar and a second end;

a first spool disposed on said rod;

a second spool disposed on said rod;

a disc having a center point, said second end of said rod connected to said disc at said center point; and

a handle member mounted to said disc;

said means for attaching said operating means to said first and said second levered wheels comprising;

a first cable having a first end attached to said first spool and a second end attached to said first levered wheel;

a second cable having a first end attached to said second spool and a second end attached to said second levered wheel;

a first pulley attached to said handling bar, said first cable passing over said first pulley; and

a second pulley attached to said handling bar, said second cable passing over said second pulley.

5. The apparatus of claim 1 further comprising:

a frame assembly;

an auger housing having a top, a side, and an opening, said auger housing connected to said frame assembly;

a chute comprising a first end connected to said top of said auger housing and a second end extending in a direction away from said auger housing, said chute having an inlet port located therein proximate said first end of said chute;

an auger adapted to push snow into said auger housing, said auger being disposed in and connected to said auger housing;

an engine mounted on said frame assembly between said first and said second mobilizing means and adapted to operate said auger;

an exhaust muffler mounted to said engine; and

an exhaust hose having a first end connected to said exhaust muffler and a second end connected to said inlet port located in said first end of said chute, whereby when said engine is started the hot exhaust gases of said engine are directed into said chute and any snow clogging said chute is melted by said hot exhaust gases.

6. The apparatus of claim 5 further comprising an exhaust deflector valve having a first side connected to said exhaust muffler of said engine and a second side connected to said exhaust hose.

7. The apparatus of claim 5 further comprising:

a cover plate covering a portion of said opening of said auger housing; and

an adjustable clamp assembly connecting said cover plate to said auger housing, whereby said cover plate can be adjusted to create a variable size frontal opening on the front of said auger housing, thereby increasing or decreasing the force acting on the snow brought into said auger housing.

8. The apparatus of claim 7 wherein said cover plate is larger than said frontal opening of said auger housing.

9. The apparatus of claim 5 wherein said auger housing has a frontal opening, said apparatus further comprising:

a cover plate having a top edge, a first side edge, and a second side edge, said cover plate juxtaposed said frontal opening of said auger housing and wherein said auger housing further comprises;

a top wall connected to said cover plate at said top edge;

a first side wall connected to said cover plate at said first side edge;

a second side wall connected to said cover plate at said second side edge; and

means for adjusting the position of said cover plate relative to said frontal opening of said auger housing, whereby said adjusting means permits movement of said cover plate to permit the size of said frontal opening of said auger housing to be varied, thereby affecting the force acting on the snow brought into said auger housing.

10. The apparatus of claim 9 wherein said cover plate is larger than said frontal opening of said auger housing.

11. An improved snowblower having a handling bar, a frame having a first side and a second side, said first side of said snowblower having a first mobilizing means and said second side of said snowblower having a second mobilizing means, wherein the improvement comprises:

a levered wheel having a fulcrum point, said levered wheel attached to said first side of said frame at said fulcrum point; and

means for moving said levered wheel between a first position in which said levered wheel does not contact the ground and a second position in which said levered wheel contacts the ground and said first mobilizing means does not contact said ground, said moving means being attached to said snowblower and said levered wheel.

12. The snowblower of claim 11 further comprising:

a first levered wheel located on said first side of said snowblower; and

a second levered wheel located on said second side of said snowblower; and

wherein said means for moving said levered wheel between said first and said second positions comprises;

means for selectively operating each said first and said second levered wheels between their respective first position and second position, said operating means being independently connected to said first and said second levered wheels.

13. The snowblower of claim 12 wherein said first and said second mobilizing means each comprise a track-drive assembly attached to said snowblower, said snowblower further comprising:

means for independently attaching said operating means to said first and second levered wheels.

14. The snowblower of claim 13 wherein said operating means comprises:

a rod having a first end connected to said handling bar and a second end;

a first spool disposed on said rod;

a second spool disposed on said rod;

a disc having a center point, said second end of said rod being connected to said disc at said center point; and

a handle member mounted to said disc at a point juxtaposed said center point of said disc;

said means for attaching said operating means to said first and second levered wheels comprising;

a first cable having a first end attached to said first spool and a second end attached to said first levered wheel;

a second cable having a first end attached to said second spool and a second end attached to said second levered wheel;

a first pulley attached to said handling bar, said first cable passing over said first pulley; and

a second pulley attached to said handling bar, said second cable passing over said second pulley.

15. An apparatus for covering an opening of an auger housing of a snowblower adapted to be operated on a ground surface, said snowblower having a handling bar, a first side, and an oppositely disposed second side, said first side of said snowblower having a first mobilizing means and said second side of said snowblower having a second mobilizing means, said apparatus comprising:

a cover plate covering a portion of said opening of said auger housing; and

an adjustable clamp assembly connecting said cover plate to said auger housing, whereby said cover plate can be adjusted to create a variable size frontal opening on the front of said auger housing, thereby increasing or decreasing the force acting on the snow brought into said auger housing.