Patent ID: 8894104
Filing Date: 2014-11-25
Classification: E05B,Y10S,Y10T

Abstract:
1. A door closer device moving a latch from a half-latch position to a full-latch position, the latch being capable of engaging with a striker, the door closer device comprising: a base member; a pivot shaft mounted to the base member; a sun gear pivotally mounted to the base member via the pivot shaft; a planetary gear that meshes with the sun gear to orbit the sun gear while rotating on its own axis; a closing lever pivotally mounted to the base member via the pivot shaft and pivotally connected with the planetary gear; a motor; an output gear driven by the motor; a sector gear pivotally mounted to the base member via the pivot shaft and having an external teeth that meshes with the output gear on an outer circumference and an internal teeth that meshes with the planetary gear on an inner circumference, the output gear driven by the motor rotating to allow the sector gear to turn thereby swinging the closing lever about the pivot shaft to move the latch from the half-latch position to the full-latch position; and a latch lever that turns together with the latch about a latch shaft, the closing lever comprising a closing portion at an end, the closing portion of the closing lever coming in direct contact with the latch lever to move the latch lever together with the latch thereby moving the latch from half-latch position to the full-latch position.