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US 4,939,945 AGranted
Gearbox drive system with plastic output gear
AssigneesRyder International Corporation, Textron Inc.
InventorsFrancis E. Ryder, Stephen P. Lisak
Life of this patent
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AssigneesRyder International Corporation, Textron Inc.
InventorsFrancis E. Ryder, Stephen P. Lisak
Estimating the term…
An adjustment gear mechanism utilizing a plastic adjustment gear and integrally formed structures which securely retain a drive member. The plastic gear is formed to provide both a gear tooth arrangement which cooperatively meshes with a drive gear and an integrally formed adjustment member bore which provides prevailing torque for an adjustment member. The gear tooth arrangement on the plastic gear is formed to cooperatively mesh with a metal drive gear and withstand the tooth load and deflection applied by the metal drive gear. The drive member is non-adhesively retained by the integrally formed structures which maintain operative engagement between the drive member and the drive gear which it rotates. The structure and materials of the mechanism also provide adjustment-retaining purchase such that when a desired adjustment is achieved using the adjustment mechanism the adjustment resists disturbance by accidental, vibrational or other forces exerted upon either the drive member or the adjustment member.
An adjustment mechanism for a headlamp or the like, said adjustment mechanism having a pair of bevel gears with intermeshing teeth for transforming rotational force exerted on a drive member operatively attached to a drive gear of said pair of bevel gears to rotate an adjustment gear of said pair of bevel gears which generally linearly moves a threaded adjustment member operatively coupled with said adjustment gear, said adjustment mechanism comprising;
An improvement in an adjustment mechanism for a headlamp or the like operatively mounted thereto which uses a pair of bevel gears with intermeshing teeth to transform rotational force exerted on a drive member associated with a drive gear of said pair of bevel gears to rotate an adjustment gear of said pair of bevel gears creating generally linear motion in a threaded adjustment member which is operatively coupled with said adjustment gear, said improvement comprising:
An improvement in an adjustment mechanism for a headlamp or the like operatively mounted thereto employing a pair of bevel gears with intermeshing teeth for transforming rotational forces exerted on a drive member associated with a drive gear of said pair of bevel gears to rotate an adjustment gear of said pair of bevel gears creating generally linear motion in a threaded adjustment member which is operatively coupled with said adjustment gear, said mechanism including a housing member, said housing member being formed with first and second gear receiving chambers, said drive gear being operatively disposed in said first gear bore and said adjustment gear being operatively disposed in second gear receiving chamber, said first and second gear receiving chambers being formed to intersect in said housing member for engaging said drive gear and said adjustment gear disposed therein, said improvement comprising:
An adjustment mechanism for a headlamp or the like employing a pair of bevel gears for transforming a rotational force applied thereto to produce a generally linear force to adjust said headlamp, said adjustment mechanism retaining a desired adjustment against unintentional adjustment of said headlamp due to the impact, vibration and the like, said adjustment mechanism comprising:
Dependencies are inferred from the claim text.