Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent
1989-04-13
1990-07-10
Herrmann, Allan D.
Machine element or mechanism
Mechanical movements
Reciprocating or oscillating to or from alternating rotary
74 8915, 74417, 744248R, 74DIG10, 362 66, 362427, 403375, B60Q 106, F16H 2524, F16H 114
Patent
active
049399454
ABSTRACT:
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.
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Lisak Stephen P.
Ryder Francis E.
Herrmann Allan D.
Ryder International Corp.
Textron Inc.
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