Patent Application
20110274512
Axles and attached chain drive sprockets found in all terrain vehicles or the like are constantly enduring heavy reversing loads making it difficult to keep the chain link drive sprocket hubs fixed firmly to the axle. Traditional keys and setscrews used in this application are almost impossible to keep tight and are difficult to remove when they become loose, burred, corroded or damaged. Shaft and drive hub splines are expensive and sensitive to corrosion. Taper lock hubs are also expensive, require extra space, add weight and are difficult to disassemble.
The object of my invention as described is compact, lightweight, economical and also reduces the time and effort in assembly and disassembly of attaching a chain drive sprocket hub to and locking it to an axle.
Although the characteristic features of the invention will be particularly pointed out in the claims, the invention itself and the manner in which it may be made and used may be better understood by referring to the following description and accompanying drawings, where like reference numerals refer to like parts throughout the several view of the drawings, in which
The accompanying drawings, as described above, illustrate a preferred embodiment of an assembly for an axle/chain drive sprocket hub. The following disclosure, describes a preferred embodiment of an axle/chain drive sprocket Hub Lock assembly rotatable along a transverse axle rotation axis and comprises the following assembly of component parts Reference from FIGS. 1,2 and 3 an axle flange/bearing 2, is bolted to an outer body panel (shown in dotted lines) of all terrain vehicles. A similar flange/bearing 3 bolted to an inner body panel (shown in dotted lines) found in all terrain vehicles. Axle 4 is installed from the outside of an outer body panel of all terrain vehicle through the chain drive sprocket hub 5. The chain drive sprocket hub 5 has a cross hole 11 aligned with a similar sized threaded cross hole through the axle 4. A bolt 6 passes through cross hole 11 of the chain drive sprocket hub 5 and threaded through the diametrically aligned cross hole 11 of the axle 4 and extends through and beyond the opposite side of the chain drive sprocket hub 5. Wherein a locknut with a serrated flange 9 is threaded on to bolt 6, securing the chain drive sprocket hub 5 to the axle 4.
The inside end of the axle 4, extends partially through the axle flange/bearing 3. The inner end of the axle, from the threaded cross hole 11 to where the end of axle threads begin, is less than the distance from the threaded crosshole to the inner end of the axle flange/bearing 3. (see arrow 10)
A top-lock type flange nut 8 is installed on the threaded end 7 of the axle 4. The flange of the top-lock type nut 8 has a flange with a larger outside diameter than the inside diameter of the bearing founded in the flange/bearing 3.
Tightening the bolt 6, flange nut 9 and top-lock type flange nut 8 creates a ridged, secure assembly and will prevent both lateral and rotational forces from loosening the chain drive sprocket drive hub 5 on the axle 4.
The accompanying drawings as described above,
The end of the axle 4 extends partially through the sprocket hub 5. The end of the axle 4 from the threaded hole 11 to where the end of the axle threads 7 begins, is less than the distance from the threaded cross hole 11 to the outer end of the sprocket hub 5. A top-lock type flange nut 8 has a flange with a larger outside diameter than the inside diameter of the sprocket hub 5.
Tightening the bolt 6, flange nut 9 and top-lock type flange nut 8 creates a ridged, secure assembly and will prevent both lateral and rotational forces from loosening the chain drive sprocket drive hub 5 on the axle 4.
The accompanying drawings as described above,
A portion of the threaded end 7 of the axle 4 extends through and just beyond the sprocket hub 5 (
