Driving mechanism, moving device, and recording device
AssigneeSeiko Epson Corporation
InventorTakuto Tanaka
Life of this patent
Estimating the term…
Abstract
A driving mechanism moves a moving unit in a predetermined direction and an opposite direction that is opposite to the predetermined direction. The driving mechanism includes a worm that is coupled to a driving source and rotates to move the moving unit, a worm wheel that is meshed with the worm, and a holding portion that holds the worm. The holding portion includes a highly-regulating portion that contacts with the worm when the moving unit moves in the predetermined direction, and a weakly-regulating portion that contacts with the worm when the moving unit moves in the opposite direction. A friction coefficient between the highly-regulating portion and the worm is greater than a friction coefficient between the weak regulation portion and the worm.
Claims13
A driving mechanism configured to move a moving unit in a predetermined direction and an opposite direction that is opposite to the predetermined direction, the driving mechanism comprising:
- a worm configured to be coupled to a driving source and to rotate to move the moving unit;
- a worm wheel configured to mesh with the worm;
- and
- a holding portion configured to hold the worm, wherein
- the holding portion includes:
- a first regulating portion configured to come into contact with the worm when the moving unit moves in the predetermined direction;
- and
- a second regulating portion configured to come into contact with the worm when the moving unit moves in the opposite direction, and
- a friction coefficient between the first regulating portion and the worm is greater than a friction coefficient between the second regulating portion and the worm.
A recording device, comprising:
- a recording unit configured to eject a liquid onto a medium to perform recording;
- a maintenance unit configured to perform maintenance for the recording unit;
- a first driving mechanism configured to move the recording unit in a first predetermined direction and a first opposite direction that is opposite to the first predetermined direction;
- and
- a second driving mechanism configured to move the maintenance unit in a second predetermined direction and a second opposite direction that is opposite to the second predetermined direction, wherein
- the second predetermined direction is a direction that is different from the first predetermined direction and the first opposite direction,
- the first driving mechanism includes:
- a first worm coupled to a first driving source and configured to rotate to move the recording unit;
- a first worm wheel configured to mesh with the first worm;
- and
- a first holding portion configured to hold the first worm,
- the first holding portion includes:
- a first regulating portion configured to come into contact with the first worm when the recording unit moves in the first predetermined direction;
- and
- a second regulating portion configured to come into contact with the first worm when the recording unit moves in the first opposite direction,
- the second driving mechanism includes:
- a second worm coupled to a second driving source and configured to rotate to move the maintenance unit;
- a second worm wheel configured to mesh with the second worm;
- and
- a second holding portion configured to hold the second worm,
- the second holding portion includes:
- a third regulating portion configured to come into contact with the second worm when the maintenance unit moves in the second predetermined direction;
- and
- a fourth regulating portion configured to come into contact with the second worm when the maintenance unit moves in the second opposite direction,
- a friction coefficient between the first regulating portion and the first worm is greater than a friction coefficient between the second regulating portion and the first worm, and
- a friction coefficient between the third regulating portion and the second worm is greater than a friction coefficient between the fourth regulating portion and the second worm.
Dependencies are inferred from the claim text.