GRILL CLEANER APPARATUS

Abstract

A grill cleaner apparatus for cleaning a grill using rotary power from an external source such as a hand drill, having a drive shaft and cleaning wheels such as wire brush wheels, with a forward cleaning wheel rotating with the drive shaft and cleaning grill bars, and two side cleaning wheels rotating perpendicular to the drive shaft and cleaning grill bars and additionally propelling the grill cleaner forward.

Claims

1. A grill cleaner apparatus for cleaning a grill having grill bars with rotary power from an external source, the grill cleaner comprising: (i) a body unit having a front, back, top, bottom, and sides; (ii) at least two bearing supports mounted in said body unit, each having a mounted bearing; (iii) a drive shaft mounted in said body unit and through said bearing supports with said bearings, and extending from the back of said body unit, adapted for attachment to an external source of rotary power; (iv) at least one transverse shaft mounted in said body unit perpendicular to said drive shaft and extending to the sides of said body unit; (v) two additional said bearings, each mounted on a side of said body unit at said transverse shaft; (vi) at least one driving gear mounted on said drive shaft, adapted to transfer rotary power from said drive shaft; (vii) at least one driven gear mounted on said transverse shaft, adapted to engage said driving gear to transfer rotary power to said transverse shaft; (viii) a forward cleaning wheel having a wheel axle, adapted to clean grill bars; (ix) two side cleaning wheels, each having a wheel axle, adapted to clean grill bars and to propel said grill cleaner forward; (x) three wheel-axle mounts, mounted at the front end of said drive shaft and at the ends of said transverse shaft, adapted to removably couple said wheel axles to said drive shaft and said transverse shaft; (xi) a wheel cover at the top of said body unit, adapted to cover said forward cleaning wheel and said side cleaning wheels; and (xii) a handle at the top of said body unit, adapted for manual movement of said grill cleaner.

2. The grill cleaner apparatus of claim 1, further comprising at least one additional bearing support having a mounted bearing mounted near said transverse shaft.

3. The grill cleaner apparatus of claim 1, where said at least one transverse shaft further comprises one transverse shaft.

4. The grill cleaner apparatus of claim 1, where said at least one driving gear further comprises one driving gear.

5. The grill cleaner apparatus of claim 1, where said at least one driven gear further comprises one driven gear.

6. The grill cleaner apparatus of claim 1, where said driving gear and said driven gear together comprise a worm gear.

7. The grill cleaner apparatus of claim 1, where said forward cleaning wheel and said side cleaning wheels are wire brush wheels.

8. The grill cleaner apparatus of claim 1, where said forward cleaning wheel further comprises being further adapted make contact with the upper half of the grill bars.

9. The grill cleaner apparatus of claim 1, where said side cleaning wheels further comprise being adapted to extend between and below the grill bars.

10. A grill cleaner apparatus for cleaning a grill having grill bars with rotary power from an external source, the grill cleaner comprising: (i) a body unit having a front, back, top, bottom, and sides; (ii) two bearing supports mounted in said body unit at the front and back, each having a mounted bearing; (iii) a drive shaft mounted in said body unit and through said bearing supports with said bearings, and extending from the back of said body unit, adapted for attachment to an external source of rotary power; (iv) a transverse shaft mounted in said body unit perpendicular to said drive shaft and extending to the sides of said body unit; (v) two additional said bearings, each mounted on a side of said body unit at said transverse shaft; (vi) a driving gear mounted on said drive shaft, adapted to transfer rotary power from said drive shaft; (vii) a driven gear mounted on said transverse shaft, adapted to engage said driving gear to transfer rotary power to said transverse shaft; (viii) at least one additional said bearing support having a mounted bearing mounted in said body unit adjacent to said transverse shaft; (ix) a forward cleaning wheel having a wheel axle, adapted to clean grill bars; (x) two side cleaning wheels, each having a wheel axle, adapted to clean grill bars and to propel said grill cleaner forward; (xi) three wheel-axle mounts, mounted at the front end of said drive shaft and at the ends of said transverse shaft, adapted to removably couple said wheel axles to said drive shaft and said transverse shaft; (xii) a wheel cover at the top of said body unit, adapted to cover said forward cleaning wheel and said side cleaning wheels; and (xiii) a handle at the top of said body unit, adapted for manual movement of said grill cleaner.

11. The grill cleaner apparatus of claim 10, where said driving gear and said driven gear together comprise a worm gear.

12. The grill cleaner apparatus of claim 10, where said forward cleaning wheel and said side cleaning wheels are wire brush wheels.

13. The grill cleaner apparatus of claim 10, where said forward cleaning wheel further comprises being further adapted make contact with the upper half of the grill bars.

14. The grill cleaner apparatus of claim 10, where said side cleaning wheels further comprise being adapted to extend between and below the grill bars.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Reference will now be made to the drawings, wherein like parts are designated by like numerals, and wherein:

[0012] FIG. 1 is a perspective view of the grill cleaner apparatus of the invention in use;

[0013] FIG. 2 is a perspective lower view of the grill cleaner apparatus of the invention;

[0014] FIG. 3 is a perspective upper view of the grill cleaner apparatus of the invention;

[0015] FIG. 4 is a top view of the grill cleaner apparatus of the invention;

[0016] FIG. 5 is a bottom view of the grill cleaner apparatus of the invention;

[0017] FIG. 6 is a back view of the grill cleaner apparatus of the invention;

[0018] FIG. 7 is a front view of the grill cleaner apparatus of the invention;

[0019] FIG. 8 is a side view of the grill cleaner apparatus of the invention;

[0020] FIG. 9 is a bottom view of the grill cleaner apparatus of the invention in use with the cleaning wheels detached;

[0021] FIG. 10 is an exploded view of the grill cleaner apparatus of the invention;

[0022] FIG. 11 is a longitudinal section view of the grill cleaner apparatus of the invention; and

[0023] FIG. 12 is a transverse section view of the grill cleaner apparatus of the invention.

DETAILED DESCRIPTION OF THE INVENTION

[0024] Referring to FIG. 1, the grill cleaner 1 is operated by attaching a source of rotary power such as a hand drill to the drive shaft 5, causing the forward cleaning wheel 11 and the side cleaning wheels 12 to rotate and clean the grill. Rotation of the side cleaning wheels 12 also propels the grill cleaner 1 forward along the grill. The grill cleaner 1 has a front to back, forward to rearward orientation with reference to its line of travel along the grill bars, and a top to bottom orientation with reference to its placement on the grill bars in use.

[0025] Referring to FIG. 2, the grill cleaner 1 provides a body unit 2 as a frame upon which to array the other components. In a preferred embodiment the body unit is a metal channel with approximate dimensions of 1.5 inches width and height, and 5.75 inches length. The drive shaft 5 has a 0.25-inch diameter. The forward cleaning wheel 11 has a 2.5-inch diameter and the side cleaning wheels 12 have 3-inch diameters.

[0026] The forward cleaning wheel 11 and side cleaning wheels 12 have abrasive material around the perimeters. In a preferred embodiment the abrasive material is radiating wire bristles forming wire brushes. Such wire brushes are widely available at low expense, and can be readily replaced, as treated below. The forward cleaning wheel 11 and side cleaning wheels 12 can also have other abrasive materials such as plastic bristles or abrasive foams. The bristles of the side cleaning wheels 12 should be flexible enough to allow the wheel perimeter to extend through the bars of the grill to more effectively clean the sides and undersides of the bars and to provide increased traction for propelling the grill cleaner 1 forward.

[0027] Referring to FIG. 3, the grill cleaner 1 provides a wheel cover 13 with an attached handle 14. The wheel cover 13 blocks the ejection of debris loosened by the cleaning wheels. The handle 14 provides a way for the user to move and place the grill cleaner 1 on different rows of grill bars. In a preferred embodiment the wheel cover 13 is made of metal and measures approximately 5.5 inches across its forward edge. The wheel cover 13 can also be made of hard plastic or similar material. In a preferred embodiment the handle is made of plastic or rubber and is approximately 5 inches long with an approximately 1.25-inch diameter.

[0028] Referring to FIG. 4, the grill cleaner 1 provides bearing supports 3 and bearings 4 mounted within the body unit 2. One bearing support 3 and bearing 4 is mounted at the back of the body unit 2, and supports the drive shaft 5.

[0029] Referring to FIG. 5, the forward cleaning wheel 11 and side cleaning wheels 12 each provide a wheel axle 10 which is removably mounted to a wheel-axle mount 9, as treated below.

[0030] Referring to FIGS. 6 and 7, the forward cleaning wheel 11 extends slightly below the body unit 2 so that in use the forward cleaning wheel 11 makes good cleaning contact with the upper half of the grill bars without becoming blocked by the grill bars. The side cleaning wheels 12 extend more below the body unit 2 so that the side cleaning wheels 12 also extend between and below the grill bars. In a preferred embodiment the forward cleaning wheel 11 extends approximately 0.125 inches below the body unit 2 and the side cleaning wheels 12 extend approximately 0.75 inches below the body unit 2.

[0031] Referring to FIG. 8, in use, when rotary power is supplied to the drive shaft, the forward cleaning wheel 11 and the side cleaning wheels 12 will rotate against and clean the grill bars, and the side cleaning wheels 12 will also propel the grill cleaner 1 forward along the grill bars.

[0032] Referring to FIG. 9, the forward cleaning wheel 11 and the side cleaning wheels 12 each have a wheel axle 10. The grill cleaner 1 provides a wheel-axle mount 10 for each wheel, providing an ability to remove the wheels for separate cleaning, for replacement, or for switching among different types of wheels.

[0033] Referring to FIG. 10, exploded view, FIG. 11, longitudinal section view, and FIG. 12, transverse section view, the drive shaft 5 is supported within the body unit 2 by bearing supports 3 with bearings 4. At least two sets of bearing supports 3 and bearings 4 are necessary and are best located at the back and front of the body unit 2. More sets of bearing supports 3 and bearings 4 located between the back and front can provide additional support and stability to prevent displacement of the drive shaft 5 during use, as shown.

[0034] The forward cleaning wheel 11 is driven directly by the drive shaft 5. The side cleaning wheels 12 are driven by one or two transverse shafts 7. In the illustrated embodiment one transverse shaft 7 is provided to drive both side cleaning wheels 12, other configurations providing two separate transverse shafts 7 are possible. The transverse shaft 7 drives the rotation of the side cleaning wheels 12 so that both wheels rotate together and cooperatively to propel the grill cleaner 1 forward. The axis of rotation of the side cleaning wheels 12 is perpendicular to the axis of rotation of the drive shaft 5 and forward cleaning wheel 11.

[0035] A bearing 4 and wheel-axle mount 9 are provided for the forward cleaning wheel 11 and each side cleaning wheel 12, as shown.

[0036] Rotary power is transferred from the drive shaft 5 to the transverse shaft 7 through at least one driving gear 6 mounted on the drive shaft 5 and at least one driven gear 8 mounted on the transverse shaft 7. In the illustrated embodiment with a single transverse shaft 7, a worm gear having one driving gear 6 and one driven gear 8 is shown. Other gear configurations are possible which provide more than one driving gear 6, driven gear 8, or both.

[0037] In the illustrated embodiment two additional sets of bearing supports 3 and bearings 4 are provided in front and in back of the transverse shaft 7 and the driving gear 6 and driven gear 8, to support and stabilize the drive shaft 7 at that point where the operation of the gears would tend to displace the shaft.

[0038] Many other changes and modifications can be made in the system and method of the present invention without departing from the spirit thereof. I therefore pray that my rights to the present invention be limited only by the scope of the appended claims.