On-vehicle display apparatus
AssigneeAlpine Electronics, Inc.
InventorKazunari Kato
Life of this patent
Estimating the term…
Abstract
An on-vehicle display apparatus includes a motor, a gear train, a threaded rod, a slider screwed to the threaded rod, and a display main body rotatably connected to the slider. The lead angle of the threaded rod is set greater than the friction angle thereof. The gear train includes first and second gears facing each other. Protrusions provided on one of the first and second gears are fitted in recesses provided in the other. A spring member elastically urges the first gear toward the second gear. A detection sensor detects the size of an external force on the basis of the displacement of the first gear against the spring member in the axial direction. The motor is controlled on the basis of the detection result of the detection sensor such that the display main body is moved away from the external force.
Claims11
An on-vehicle display apparatus comprising:
- a motor;
- a threaded rod provided with a helically extending thread groove;
- a gear train transmitting the drive force of the motor to the threaded rod;
- a slider screwed to the thread groove and moving back and forth with the rotation of the threaded rod;
- a case in which the motor, the threaded rod, the gear train, and the slider are disposed;
- and
- a display main body rotatably connected to the slider and capable of being moved by the drive force of the motor between a state where the display main body is retracted in the case and a state where the display main body is raised in the front part of the case,
- wherein the lead angle of the threaded rod is set greater than the friction angle thereof so that the threaded rod is rotated by an external force applied to the slider through the display main body, the gear train includes a first gear on the relatively input side and a second gear on the relatively output side, the first and second gears face each other, protrusions provided on one of the first and second gears are fitted in recesses provided in the other so that the gears rotate coaxially and integrally, the on-vehicle display apparatus further comprises a spring member elastically urging the first gear toward the second gear, and a detection sensor detecting the size of the external force on the basis of the displacement of the first gear against the spring member in the axial direction, and the motor is controlled on the basis of the detection result of the detection sensor such that the display main body is moved away from the external force.
An on-vehicle display apparatus comprising:
- a motor;
- a threaded rod provided with a helically extending thread groove;
- a gear train transmitting the drive force of the motor to the threaded rod;
- a slider screwed to the thread groove and moving back and forth with the rotation of the threaded rod;
- a case in which the motor, the threaded rod, the gear train, and the slider are disposed;
- and
- a display main body rotatably connected to the slider and capable of being moved by the drive force of the motor between a state where the display main body is retracted in the case and a state where the display main body is raised in the front part of the case,
- wherein the lead angle of the threaded rod is set greater than the friction angle thereof so that the threaded rod is rotated by an external force applied to the slider through the display main body, the gear train includes a first gear on the relatively input side and a second gear on the relatively output side, the first and second gears face each other, protrusions provided on one of the first and second gears are fitted in recesses provided in the other so that the gears rotate coaxially and integrally, the on-vehicle display apparatus further comprises a spring member elastically urging the first gear toward the second gear, and a force sensor that detects the size of the external force on the basis of the displacement of the first gear against the spring member in the axial direction and outputs a detection signal in proportion to the size of the external force, and the motor is controlled on the basis of the detection result of the force sensor such that the display main body is moved away from the external force.
Dependencies are inferred from the claim text.