Title:
DECELERATION GEAR AND DIGITAL DOOR LOCK USING SAME
Document Type and Number:
WIPO Patent Application WO/2011/099786
Kind Code:
A2
Abstract:
The present invention relates to a deceleration gear and a digital door lock using the same. The deceleration gear according to the present invention comprises: a drive gear which is rotated about a rotational axis by a motor, and engages a driven gear such that the torque of the motor rotates the driven gear; and a power transmission means which is arranged between the rotational axis and the drive gear for power transmission between the rotational axis and the drive gear, such that the motor and the drive gear can rotate together and a reverse rotating force is transferred to the driven gear while the rotational axis and the drive gear rotate together in one direction in response to an electric signal from the motor, with the reverse rotating force rotating the drive gear in the opposite direction, whereby the rotational axis may keep rotating in one direction without being forced to rotate in the opposite direction in case the drive gear rotates in the opposite direction.
Inventors:
KIM, Sang Min (1 Woojangsan Hyundai Home Town Apt, Naebalsan-dong 657 Gangseo-gu, Seoul 157-834, 157-834, KR)
Application Number:
KR2011/000889
Publication Date:
August 18, 2011
Filing Date:
February 10, 2011
Export Citation:
Assignee:
KIM, Sang Min (1 Woojangsan Hyundai Home Town Apt, Naebalsan-dong 657 Gangseo-gu, Seoul 157-834, 157-834, KR)
International Classes:
E05B47/00; E05B47/06
Attorney, Agent or Firm:
EOM, Myung Yong (4th Fl, Maegang Bldg1503-9, Seocho-dong, Seocho-gu, Seoul 137-070, 137-070, KR)
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Claims: