AU2001100621A4 - Motorcycle wheel nut tool - Google Patents

Description

AUSTRALIA

Patents act 1990 COMPLETE SPECIFICATION INNOVATION PATENT MOTORCYCLE WHEEL NUT TOOL The following statement is a full description of this invention, including the best method of performing it known to me.

MOTORCYCLE WHEEL NUT TOOL This invention relates to improvements in devices carrying to undo wheel nuts on offroad or road going motorcycles.

From a motorcycle point of view especially an offroad motorcycle it is necessary to carry tools to fix any problems and avoid getting stranded. Probably the most important tools to carry would be lyre levers an a puncture repair U Io L a possible flat lyre, Ls lien makes it necessary to carry some kind of spanner or socket to undo the wheel nuts in order to remove the wheel. The size and tightness of these nuts make the tool needed to be of a heavy duty construction and of reasonable size to create leverage. This in turn makes the tools big and heavy and not suited to be carried on the bike in a tool pouch or bt. bi g 6rhyRIk I iAim.

Some examples of what would commonly be carried are as follows- 1 .Bike manufacturer supplied tools. Most of These are heavy andraty up to the task.

2. A large adjustable spanner. Extremely heavy and bulky. A 3. A socket to fit the nuts and a large ratchet or similar. Again heavy and bulky.

To add to the problems of size and weight the rider still has to carry the tyre levers as tll.

Thcs problems are overcome by the present invention, This 4device is designed to fit to the end of a tyre lover to create leverage, thereby making it extremely small and light.

The head of the tool acccpts differcnt size inserts making it work like a socket and driver without the weight etc..

i This device with the proper insert will undo large tight nuts with ease in its present form- The device consists of a mild, hi tensile steel or spring steel body with a small hexagon machined out of one end and a larger one at the other. To this body is bolted a backing plate of the same shape but in thinncr material and with circles instead of hexagons.

The hexagons in the main plate accept the inserts that reduce the hex size and the backing plates slightly smaller cutouts stop the inserts being pushed through.

The inserts are then held in place by a small grub screw.

The tyre lever then bolts (through a hole in the lever) to the body and the four bolts that hold the two pieces of the body together locate the lever in one of four positions.

The steel used for the body and or inserts can be of mild steel, hi tensile steels or spring steel.

I To assist with understanding the invention, reference win now nec mace to mce acconmpanying drawings:- In the drawings: Fig I shows the main plate and a selection of inserts, the holes in the body are all threaded, the ~econd platc bolts to this one with the four small holes and the tyre lever is bolted using the centre hole. The thickness of plate and inserts is 5mm in this case but any thickness may be used.

Fig 2 shows the second plate that bolts to the main plate. The thickness of this plate is 2mm but any thickness may be used.

Fig 3 Shows the unit assembled and a tyre lever attached forming a usable tool.

Please note the four different positions the lever can be attached in- The parts on the drawing are numbered and their description is as follows:, 1. Main plate, mild steel, hi tensile or spring steel thickness variable.

2. Selection of inserts not restricted to hexagon centers, mild steel, hi tensile or spring steel thickness variable.

3. Second plate,mild steel, hi tensile or spring steel thickness variable.

4. Socket head cap screws bolt plates together.

Bolt to hold tyre lever can be hex or other.

6. Grub screws to hold inserts in place.

7. Tyre lever variable brands.

In operation Insert required insert into tool body and tighten grubscrew to hold in place.

Fix tyre lever to tool body in required position.

Use as conventional ring spanner on nuts or bolts.

VARIATION:

This device can be used solely using tyre levers that we also make as they have hexagon holes in them that fit over the center bolt When using our levers the center bolt is fixed (welded) to the main plate and the four locating bolts are not required- This makes the tool very quick to use as the lever is just slipped over the hex on the tool body.

The tool can be used with or without the 2mm baekplate as required as this can save additional weight and the inserts will still be held in place by the grub screws.

It will be realized that the motorcycle wheel nut tool according to this invention is not restricted to the type of insert that can be used or thickness or grade of the material used.

Claims (3)

1.A motorcycle wheel nut spanner comprising a steel body that accepts different size steel inserts to fit different sized nuts or bolts. Is operated by using a tyre lever for leverage thereby forming a small lightweight tool that can undo or do up very large tight nuts or bolts.

2.Thc wheel nut device of claim one where the steel body or its inserts are made instead of: hi tensile steel, spring steel or aluminium alloy.

3.The wheel nut device of claim one where the leverage tool used is something other than a tyre lever. KEITH GRANGE 5 th December 2001