Retracting mechanism of vehicular outer mirror device
First Claim
1. A retracting mechanism of a vehicular outer mirror device, the retracting mechanism comprising:
- a case member that is pivotably supported on a support shaft of a vehicle body and to which a vehicular outer mirror is coupled;
a motor disposed in the case member including an output shaft that rotates around an axis of rotation;
a motor gear that is disposed in the case member, and that has first and second opposing ends including first and second end openings, respectively, said first end opening being coupled to said output shaft of the motor, such that said shaft is rotated by the driving of the motor, and said second end opening being coupled to a gear support shaft;
a gear plate attached to the vehicle body support shaft such that its rotation with respect to the vehicle body support shaft can be prevented; and
intermediate gears that are disposed in the case member and mesh with the motor gear and the gear plate to couple the motor gear and the gear plate together, with the intermediate gears rotating while meshing the periphery of the gear plate in a state where the rotation of the gear plate with respect to the vehicle body support shaft is prevented, whereby the outer mirror is pivoted together with the case member around the vehicle body support shaft,wherein a coupled portion is formed between the output shaft of the motor and the opening in the first end of the motor gear that includescoupling retaining portions that are fitted together, and that retain the coupled state of the output shaft of the motor and the motor gear collinear with the axis of rotation, and deter slanting of the motor gear, including a cylindrical surface of said output shaft that slidably interfits with a cylindrical surface of said motor gear, said cylindrical surfaces being rotatably slidable with respect to one another, androtational force transmitting portions that oppose each other in a state where a predetermined gap is present between the output shaft of the motor and the motor gear, and transmit only the rotational force of the motor to the motor gear, including a first pair of opposing surfaces on said output shaft that opposes a second pair of opposing surfaces on said motor gear, wherein each pair of opposing surfaces is symmetrical with respect to said axis of rotation.
1 Assignment
0 Petitions
Accused Products
Abstract
A retracting mechanism for storing or erecting a mirror includes, at a coupled portion of an output shaft of a drive motor and a worm gear, coupling retaining portions fitted together in a press-fitted state and rotational force transmitting portions opposing each other in a state where a predetermined gap is present between them. The coupling retaining portions are configured by a circular shaft portion and a circular fitting hole, and the rotational force transmitting portions are configured by a double D-cut portion and double D-protruding portions. The rotational force of the output shaft is transmitted by the rotational force transmitting portions, and the coupled state of the output shaft and the worm gear is retained on the same axial line and the slanting of the worm gear is prevented by the coupling retaining portions.
40 Citations
14 Claims
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1. A retracting mechanism of a vehicular outer mirror device, the retracting mechanism comprising:
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a case member that is pivotably supported on a support shaft of a vehicle body and to which a vehicular outer mirror is coupled; a motor disposed in the case member including an output shaft that rotates around an axis of rotation; a motor gear that is disposed in the case member, and that has first and second opposing ends including first and second end openings, respectively, said first end opening being coupled to said output shaft of the motor, such that said shaft is rotated by the driving of the motor, and said second end opening being coupled to a gear support shaft; a gear plate attached to the vehicle body support shaft such that its rotation with respect to the vehicle body support shaft can be prevented; and intermediate gears that are disposed in the case member and mesh with the motor gear and the gear plate to couple the motor gear and the gear plate together, with the intermediate gears rotating while meshing the periphery of the gear plate in a state where the rotation of the gear plate with respect to the vehicle body support shaft is prevented, whereby the outer mirror is pivoted together with the case member around the vehicle body support shaft, wherein a coupled portion is formed between the output shaft of the motor and the opening in the first end of the motor gear that includes coupling retaining portions that are fitted together, and that retain the coupled state of the output shaft of the motor and the motor gear collinear with the axis of rotation, and deter slanting of the motor gear, including a cylindrical surface of said output shaft that slidably interfits with a cylindrical surface of said motor gear, said cylindrical surfaces being rotatably slidable with respect to one another, and rotational force transmitting portions that oppose each other in a state where a predetermined gap is present between the output shaft of the motor and the motor gear, and transmit only the rotational force of the motor to the motor gear, including a first pair of opposing surfaces on said output shaft that opposes a second pair of opposing surfaces on said motor gear, wherein each pair of opposing surfaces is symmetrical with respect to said axis of rotation. - View Dependent Claims (2, 3, 4)
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5. A retracting mechanism of a vehicular outer mirror device, the retracting mechanism comprising:
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a support shaft fixed to a vehicle body; a case member that is pivotably supported on the fixed support shaft and that retains a vehicular outer mirror; a motor disposed in the case member having an output shaft that rotates around an axis of rotation; a motor gear having first and second opposing ends including first and second end openings, respectively, that is disposed in the case member, said first end opening being coupled to said output shaft of the motor, such that said output shaft is rotated by the driving of the motor, and said second end opening being coupled to a gear support shaft; and a rotation transmitting mechanism that transmits the rotation of the motor gear to the fixed support shaft to thereby cause the case member to rotate around the fixed support shaft, wherein a portion where the output shaft of the motor and the first end of the motor gear are coupled together, includes coupling retaining portions where the output shaft and the motor gear are fitted together and which retain their axial centers collinear with the axis of rotation, including a cylindrical surface of said output shaft that slidably interfits with a cylindrical surface of said motor gear, said cylindrical surfaces being rotatably slidable with respect to one another, and rotational force transmitting portions where the output shaft and motor gear include mutually opposing surfaces separated by a gap and where rotational force is transmitted between the output shaft and the motor gear via the opposing surfaces, including a first pair of opposing surfaces on said output shaft that opposes a second pair of opposing surfaces on said motor gear, wherein each pair of opposing surfaces is symmetrical with respect to said axis of rotation. - View Dependent Claims (6, 7, 8, 9)
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10. A retracting mechanism of a vehicular outer mirror device, the retracting mechanism comprising:
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a support shaft fixed to a vehicle body; a case member that is pivotably supported on the fixed support shaft and that retains a vehicular outer mirror; a motor disposed in the case member including an output shaft that rotates around an axis of rotation; a motor gear having first and second opposing ends including first and second end openings, respectively, that is disposed in the case member, said first end opening being coupled to the output shaft of the motor, such that said shaft is rotated by the driving of the motor, and said second end opening being coupled to a gear support shaft; and a rotation transmitting mechanism that transmits the rotation of the motor gear to the fixed support shaft to thereby cause the case member to rotate around the fixed support shaft, wherein a portion where the output shaft of the motor and the first end of the motor gear are coupled together, includes coupling retaining portions where the output shaft and the motor gear are fitted together and which retain their axial centers collinear with the axis of rotation, including a cylindrical surface of said output shaft that slidably interfits with a cylindrical surface of said motor gear, said cylindrical surfaces being rotatably slidable with respect to one another, and rotational force transmitting portions where the output shaft and the motor gear include planar surfaces that oppose each other in a state where they include a predetermined gap and where rotational force is transmitted between the output shaft and the motor gear via the planar surfaces, including a first pair of mutually parallel opposing surfaces on said output shaft that opposes a second pair of mutually parallel opposing surfaces on said motor gear, wherein each pair of opposing surfaces is symmetrical with respect to said axis of rotation. - View Dependent Claims (11, 12, 13, 14)
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Specification