Power-door opening and closing device and automobile provided with opening and closing device
First Claim
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1. A clutchless power door opening device comprising:
- a casing;
a motor mounted to the casing;
a planetary gear unit housed in the casing to reduce rotation speed of the motor; and
an output mechanism that transmits reduced rotation from the planetary gear to the door to open and close the door,wherein the planetary gear unit comprises a sun gear that rotates with a rotary shaft of the motor, a planetary carrier fixed in the casing, a planetary gear that is rototably supported to the planetary carrier and meshes with the sun gear, and a ring gear that is rotatably supported in the casing and meshes with the planetary gear,wherein one end of the sun gear fits in the rotary shaft of the motor so that the sun gear rotates together with the rotary shaft of the motor and the other end is supported to rotate in the planetary carrier whereby the sun gear is supported at both ends.
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Abstract
A power door opening device comprises a casing; a motor mounted to the casing; a planetary gear unit housed in the casing to reduce rotation speed of the motor; and an output mechanism that transmits reduced rotation from the planetary gear unit to a door to open and close the door. The planetary gear unit comprises a sun gear that rotates with a rotary shaft of the motor; a planetary carrier fixed in the casing; a planetary gear that is rotatably supported to the planetary carrier and meshes with the sun gear; and a ring gear that is rotatably supported in the casing and meshes with the planetary gear. Both ends of the sun gear are supported.
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Citations
4 Claims
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1. A clutchless power door opening device comprising:
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a casing; a motor mounted to the casing; a planetary gear unit housed in the casing to reduce rotation speed of the motor; and an output mechanism that transmits reduced rotation from the planetary gear to the door to open and close the door, wherein the planetary gear unit comprises a sun gear that rotates with a rotary shaft of the motor, a planetary carrier fixed in the casing, a planetary gear that is rototably supported to the planetary carrier and meshes with the sun gear, and a ring gear that is rotatably supported in the casing and meshes with the planetary gear, wherein one end of the sun gear fits in the rotary shaft of the motor so that the sun gear rotates together with the rotary shaft of the motor and the other end is supported to rotate in the planetary carrier whereby the sun gear is supported at both ends. - View Dependent Claims (2, 3, 4)
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Specification