Patent ID: 7788767
Filing Date: 2010-09-07
Classification: E05F,E05Y,Y10T

Abstract:
1. An automatic door shutter comprising: a stationary plate adapted to mount on a door frame, with the stationary plate having a pivotal shaft with an outer periphery, with a sliding notch defined at the outer periphery; a sliding base adapted to mount on a door; a pressing plate engaging the sliding base, with the pressing plate pivotally attached to the stationary plate for movement between an open position and a closed position, and with the pressing plate having a front end with a sliding recess to slidably combine with the sliding base; a resilient body attached between the stationary plate and the pressing plate for resilient restitution therebetween; and a resilient sheet having one end received inside the sliding notch of the stationary plate and another end abutting the pressing plate; wherein the resilient body deforms to provide a restitution force when the pressing plate pivots from the closed position to the open position to shut the door automatically after the door is pushed, with the resilient sheet being S-shaped when the pressing plate is in the closed position and is deformed to a U-shape when the pressing plate is in the open position to push the pressing plate towards the closed position.