Patent Application
20090293321
The subject matter described herein relates generally to motor-driven gear assemblies. More particularly, the subject matter disclosed herein relates to motor-driven gear assemblies used to control the rotation of a snowblower chute.
When using a snowblower to remove snow, a user will often move in a first linear direction until reaching the end of some real or imaginary boundary. By doing so, the user throws snow in a consistent direction, usually to the side of the directional movement. After reaching the boundary, the user will generally turn the snowblower 180° and continue to remove snow by moving in a direction opposite of the first linear direction. During this return, the snow is thrown in a direction opposite that of when the user was moving in the first linear direction. As such, snow is thrown in areas that may have already been passed over by the snowblower and were clear of snow. To prevent such problems, snowblowers often include means for rotating a snowblower chute so that snow can be thrown in a consistent direction no matter which direction the snowblower is being directed.
Typically, snowblower chute controls can be mechanical or electrical mechanisms. Mechanical controls can have a gear system in which a control handle is connected to the gear system for rotating the snowblower chute. A crank shaft, for example, can be used to transfer rotational motion from a shaft to a gear system that is directly configured to the snowblower chute for rotational movement. Electrical controls can typically include a joystick-type control handle that is mechanically linked to a gear system configured directly to the snowblower chute. Thus, movement of the joystick-type control handle elicits movement on the snowblower chute.
Electrical chute controls provide an obvious advantage over purely mechanical systems in that the user need only trigger an electrical input to drive the rotation of the snowblower chute. Electrical controls can often be complex systems, however, having a variety of interlinking electrical, mechanical, hydraulic, and/or structural components. As a result, the complexity of these systems can contribute to costly and time-consuming assembly. Thus, it would be advantageous to have an electrical snowblower chute control system that minimizes the number of separate components to reduce time spent—and thus help reduce the cost—of assembling the snowblower chute control mechanism.
Therefore, improved snowblower chute controls are provided for electrically controlling the rotation of a snowblower chute with an easy-to-assemble control mechanism.
In accordance with this disclosure, novel motorized snowblower chute assemblies and methods are provided.
It is therefore an object of the present disclosure to provide novel motorized snowblower chute assemblies and methods that facilitate rotational control of a snowblower chute but that provide for easy assembly of the snowblower chute control system. This and other objects as may become apparent from the present disclosure are achieved, at least in whole or in part, by the subject matter described herein.
A full and enabling disclosure of the present subject matter including the best mode thereof to one of ordinary skill in the art is set forth more particularly in the remainder of the specification, including reference to the accompanying figures, in which:
Reference will now be made in detail to the description of the present subject matter, one or more examples of which are shown in the figures. Each example is provided to explain the subject matter and not as a limitation. Features illustrated or described as part of one embodiment can be used in another embodiment to yield still a further embodiment. It is intended that the present subject matter cover such modifications and variations.
Chute control assembly 20 according to the present subject matter is shown in more detail in
Chute control assembly 20 can further include a flange 24 that can extend outwardly and upwardly from chute-holding bracket 22, and can create a recess between flange 24 and housing H of snowblower 10. A motor M can be secured to flange 24 between flange 24 and housing H of snowblower 10. Motor M can then be coupled to a ring gear RG secured at or near the base of discharge chute 12. Specifically, a drive gear 26 driven by motor M can be meshingly engaged with the teeth of ring gear RG. Any known design capable of providing driving engagement of ring gear RG by motor M can be used, such as, for example, a worm or a pinion. Drive gear 26 is illustrated in
As is illustrated in
The particular configuration of chute control assembly 20 as described hereinabove and illustrated in the figures enables chute control assembly 20 to be quickly and easily assembled and attached to housing H of snowblower 10. Specifically, chute control assembly 20 can be assembled independently from the rest of snowblower 10 and then coupled to snowblower 10 with minimal difficulty. For example, motor M can first be attached to chute-holding bracket 22. This attachment can be accomplished, for example, by securing motor M to flange 24 that extends from chute-holding bracket 22. For instance, motor M can be secured to flange 24 using mounting screws 28.
Separately, discharge chute 12 can be rotatably positioned on housing H. Pre-assembled chute control assembly 20 can then be positioned about discharge chute 12, for example by slipping ring-shaped chute-holding bracket 22 over discharge chute 12. Ring gear RG can thus be restrained between chute-holding bracket 22 and housing H, thereby restraining discharge chute 12 against housing H and rotatably coupling discharge chute 12 to snowblower 10. Chute-holding bracket 22 can include a plurality of indents 30 that can be positioned over ring gear RG about the perimeter of chute-holding bracket 22. Indents 30 can help to stabilize discharge chute 12 as it rotates against housing H. Chute control assembly 20 can include a window 32 in flange 24 positioned generally above drive gear 26, allowing the user to observe the coupling of drive gear 26 to ring gear RG to ensure meshing engagement. Alternatively, chute control assembly 20 can be coupled to discharge chute 12 before it is positioned on housing H of snowblower 10.
Once chute control assembly 20 is positioned about discharge chute 12 with drive gear 26 meshingly engaged with ring gear RG, chute control assembly 20 can be secured to housing H by any suitable fasteners such as fasteners 34 to secure discharge chute 12 in place against housing H. For example, one or more weld nuts can be used to secure chute-holding bracket 20 to housing H. Motor M can be electrically connected to chute control 14 on control panel 16 using cable 18.
Embodiments of the present disclosure shown in the drawings and described above are exemplary of numerous embodiments that can be made within the scope of the appending claims. It is contemplated that the configurations described herein can comprise numerous configurations other than those specifically disclosed. The scope of a patent issuing from this disclosure will be defined by these appending claims.
