BRACKET DOOR CLOSER

摘要

A door closer is provided to automatically pull a storm or screen door to a fully closed position without user action. The door closer includes a bracket housing with a cam switch movable along a track as the door opens and closes. The closer cylinder rod is engaged with the cam switch until the door is fully opened. The cam switch biases the closer cylinder and rod as the door approaches the closed position.

主权项

1. A door closer assembly for a storm or screen door movable between opened and closed positions relative to a door frame, comprising:
a bracket assembly: the bracket assembly comprising a housing adapted to be fixed to the door frame, a cam switch mounted to the housing, and a rod attached to the cam switch; the housing having a pair of symmetrical parallel spaced bracket arms, with the cam switch sandwiched between the arms; the cam switch having two springs, and each spring have a first end and a second end, the first end of each spring being attached to the housing, and the second end of each spring being attached to the cam switch; whereby when the cam switch is moved in the housing, the two springs are compressed or extended; the rod being mounted on the housing between the bracket arms for rotation about an axis; the rod having a first end and a second end, and the first end of the rod being connected to the cam switch; a door closer having a first end connected to the second end of the rod and having a second end adapted to be attached to the storm door; whereby when the door is swung open or close, the rod rotates to urge the cam switch to slide between the bracket arms until the cam switch reaches the open position or close position; when the cam switch is in the open position, the two springs are extended; and when the door is closing, the two springs are retracted and apply a force to pull the door closer to rotate and close the door.