Rocker arm bushing inserts

Abstract

Harley Davidson motorcycles motors have a gap between the rocker arm shaft and the cam plate bolt, this bolt is supposed to lock the rocker arm shaft but because of the gap the shaft rotates with the rocker arm, hitting the bolt causing an annoying tick. The Rocker arm bushing inserts go between the rocker arm support plate bolt and the rocker arm shaft locking the shaft and preventing it from rotating and hitting the bolt that cause an annoying tick. The bushings are called Rocker arm bushing inserts. Each cylinder head requires two inserts, or four per motor. Inserts can be made from any material and length can vary. Inserts must fit inside a 11 / 32 hole and around a 5 / 16 bolt shank.

Description

CROSS-REFERENCE TO RELATED APPLICATIONSProvisional to Non-Provisional Patent Request[0001]This is a request to convert application 62 / 200,017 to a Non provisional patent. See note below in history.BACKGROUND OF THE INVENTIONHistory[0002]The gap between the shaft and bolt on Harley motors has been a known but little publicized problem, most people used a set screw or Loctite to stop the movement of the shaft to stop it from hitting the bolt.[0003]While studying my rocker arm assembly I realized that a bushing between the bolt and shaft would be a better solution, so I designed and perfected the rocker arm busing inserts.[0004]I then contacted John Lindsay (listed in the original provisional patent) to manufacture and promote the product called Rocker Lockers, and possibly form a business partnership. (That is why his name is on the provisional patent.)[0005]That partnership never developed and we went our separate ways and he started selling a “similar” product.[0006]I have contacted...

AI Technical Summary

Benefits of technology

The patent text describes a solution for a problem with Harley Davidson motorcycles where there is a gap between the rocker arm shaft and the cam plate bolt that holds down the cam plate, causing an annoying tick. The solution is to place a bushing around the cam plate bolts to lock the rocker arm shaft and eliminate the tick. Additionally, the bushing also centers the rocker cam support plate and prevents wear and misalignment of the rocker arm / valve and pushrod. These bushings are called Rocker arm bushing inserts.

Problems solved by technology

The gap between the shaft and bolt on Harley motors has been a known but little publicized problem, most people used a set screw or Loctite to stop the movement of the shaft to stop it from hitting the bolt.

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