A skid shoe for a snowthrower is provided that includes a selected dual-faced, dual-angled approach surface, and an elongate footprint as compared to prior skid shoe devices. The skid shoe includes a runner element and a mounting flange element, each of which has dimensions and contours configured t
A skid shoe for a snowthrower is provided that includes a selected dual-faced, dual-angled approach surface, and an elongate footprint as compared to prior skid shoe devices. The skid shoe includes a runner element and a mounting flange element, each of which has dimensions and contours configured to maximize utility when mounted to a snowthrower. In particular, the skid shoe provides for smoothened operation of a snowthrower moving across uneven surfaces and/or abrupt transitions.
대표청구항▼
1. A snowthrower skid shoe configured for use with a snowthrower, the skid shoe comprising: an elongate runner plate with an upper surface and a lower surface, where the lower surface includes: at least five contiguous lower faces configured as a first leading face, a second leading face, and interm
1. A snowthrower skid shoe configured for use with a snowthrower, the skid shoe comprising: an elongate runner plate with an upper surface and a lower surface, where the lower surface includes: at least five contiguous lower faces configured as a first leading face, a second leading face, and intermediate face, a first trailing face, and a second trailing face; where each of the first leading face and the second trailing face is offset by a first angle, where the first angle is about 43°, from a plane continuous with the intermediate face;where each of the second leading face and the first trailing face is vertically offset by a second angle, where the second angle is about 23°, from the plane continuous with the intermediate face;where a longitudinal end terminus of the first leading face is vertically perpendicularly offset from the plane continuous with the intermediate face by about two inches;a first lateral edge defining a longitudinal side of the runner plate, where the first lateral edge is disposed opposite and generally parallel with a second lateral edge; anda mounting flange extending substantially vertically from the upper surface, the mounting flange disposed immediately adjacent one of the first lateral edge or the second lateral edge;where a transition between the first lateral edge and the second lateral edge, including the end terminus includes an asymmetrical filleted radius such that a generally rounded portion of the transition including the end terminus is latitudinally nearer to the mounting flange than to a generally straight portion of the transition. 2. The snowthrower skid shoe of claim 1, where the runner plate includes a linear length of at least 12 inches. 3. The snowthrower skid shoe of claim 1, where the runner plate includes a total length along all five faces of at least 13 inches. 4. The snowthrower skid shoe of claim 1, where the runner plate comprises a substantially uniform thickness between the upper surface and the lower surface. 5. The snowthrower skid shoe of claim 4, where the runner plate comprises steel material and substantially uniform thickness is about one-quarter inch. 6. The snowthrower skid shoe of claim 1, further comprising at least two mounting apertures disposed transversely through the mounting flange plate. 7. The snowthrower skid shoe of claim 1, further comprising more than two mounting apertures disposed transversely through the mounting flange plate, said mounting apertures disposed to correspond to mounting attachment structures of a snowthrower. 8. The snowthrower skid shoe of claim 1, where the mounting flange is permanently affixed to the runner plate. 9. The snowthrower skid shoe of claim 1, where the first leading face is substantially symmetrical in size with and is substantially a mirror image of the second trailing face. 10. The snowthrower skid shoe of claim 1, where the transition's generally straight portion is contiguous with and disposed about 22° offset from one of the first lateral edge and the second lateral edge, and where a curved portion of the filleted radius is contiguous with the other of the first lateral edge and the second lateral edge. 11. The snowthrower skid shoe of claim 1, comprising a corrosion-resistant finish. 12. The snowthrower skid shoe of claim 1, where the runner, the mounting flange, or both comprise a corrosion-resistant metal material. 13. The snowthrower skid shoe of claim 1, where each of the first leading face and the second trailing face is about 1.6 inches long, each of the second leading face and first trailing face is about 1.9 inches long, and the intermediate face is about 6 inches long and about 1⅛ inches wide. 14. The snowthrower skid shoe of claim 1, where the mounting flange comprises a generally octagonal shape that is configured as front-rear symmetrical across a vertical line of symmetry, where six of the shape's apices are configured as lower apices contacting the upper surface of the runner plate, and where the other two of the shape's apices are configured with filleted radii oriented opposite the upper surface of the runner plate. 15. The snowthrower skid shoe of claim 14, where each of a leading mounting flange edge and a trailing flange edge is oriented at about a 34° angle relative to the plane continuous with the intermediate face, and where a top edge of the mounting flange between the two apices configured with filleted radii is substantially parallel with the plane continuous with the intermediate face. 16. A snowthrower comprising a skid shoe according to claim 1.
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이 특허에 인용된 특허 (12)
Schneider Richard J. (20 Malaspina Dr. Eagle River AK 99577), Aircraft ski mounting assembly.
Campbell Norman A. (Box 452 New Liskeard ; Ontario P0J 1P0 CAX) Campbell Donald G. (R.R. #1 Callander ; Ontario P0H 1H0 CAX), Steering skis for snowmobiles and similar vehicles.
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