Compact door closing latching mechanism

摘要

A door mechanism pulling a door closed for latching. A puller tongue is triggered to release when adjacent a strike plate or jamb of a door. The puller tongue pushes the door completely closed resulting in latching. A setting lever is rotated upon turning a door knob setting the puller tongue in a retracted position. A raising lever and pendulum selectively cause the releasing of the puller tongue when the latch contacts a strike plate or jamb of a door and prevents releasing of the puller tongue when a door knob is turned. A door is caused to securely latch even though the door is closing slowly and with little force.

主权项

1. A door closing latching mechanism comprising:
a door handle receiver; puller tongue means, within the door closing latching mechanism, for forcing an ajar door closed; a latch; a setting lever contacting said puller tongue means and latch when rotated; means, coupled to said puller tongue means, for selectively holding said puller tongue means in a retracted position; means, coupled to said latch, for selectively releasing said puller tongue means from the retracted position upon movement of said latch; and means, coupled to said door handle receiver, for decoupling said latch from said means for selectively releasing said puller tongue means from the retracted position when said door handle receiver is rotated, permitting said door handle receiver to be rotated without releasing said puller tongue means, whereby releasing of said puller tongue means is caused by movement of said latch when coupled to said means for selectively releasing said puller tongue means resulting in a door being pulled closed and latched securely.