Apparatus for automatic control of the clearance between gears
AssigneeTRW Inc.
InventorHenry C. Sangret
Life of this patent
Estimating the term…
Abstract
An apparatus (10) includes first (20) and second (40) meshing gears, a rotatable eccentric (50), a torsion spring (70), and a rotation blocking member (80). The first gear (20) is rotatable about a first axis (22) and the second gear (40) is rotatable about a second axis (42). The rotatable eccentric (50) supports the first gear (20) for rotation about the first axis (22). Rotation of the eccentric (50) in a first direction (54) causes the first axis (22) and the first gear (20) to move toward the second axis (42). The torsion spring (70) biases the eccentric (50) for rotation in the first direction (54). The rotation blocking member (80) prevents rotation of the eccentric (50) in a second direction (56) opposite the first direction (54).
Claims9
An apparatus comprising:
- first and second meshing gears, said first gear being rotatable about a first axis and said second gear being rotatable about a second axis;
- a rotatable eccentric supporting said first gear for rotation about said first axis, rotation of said eccentric in a first direction causing said first axis and said first gear to move toward said second axis;
- a torsion spring biasing said eccentric for rotation in said first direction;
- and
- a member for blocking rotation of said eccentric in a second direction opposite said first direction.
An apparatus comprising:
- first and second meshing gears, said first gear being rotatable about a first axis and said second gear being rotatable about a second axis;
- a rotatable eccentric supporting said first gear for rotation about said first axis, rotation of said eccentric in a first direction causing said first axis and said first gear to move toward said second axis;
- a torsion spring biasing said eccentric for rotation in said first direction;
- and
- a member for blocking rotation of said eccentric in a second direction opposite said first direction, said first gear being a worm gear and said second gear being a worm wheel, said worm gear having projecting shaft portions at its opposite ends, said eccentric supporting one of said projecting shaft portions.
Dependencies are inferred from the claim text.