Latching mechanism for access door

摘要

Disclosed is a latching mechanism for a access door. More specifically, the disclosure relates to an access door that can be pivoted between opened and closed orientations and secured in the open position with the aid of a hold open arm. A latching lever, in turn, pivotally engages the hold open arm to selectively secure the access door in an opened orientation. A grip upon the hold open arm can thereafter be used in conjunction with the latching lever to release the access door and permit it to be closed.

主权项

1. A latching mechanism for an access door comprising:
a frame defining a rectangular opening, the frame having rearward and forward walls and upper and lower mounting flanges; an access door pivotally connected to the rearward wall of the frame, the access door having first and second opposing faces, a recessed inner edge upon the first face, a handle slidably positioned within the access door, a slotted track formed within the recessed inner edge and including a latching recess; a hold open arm having first and second ends and an intermediate extent therebetween, the first end pivotally secured to the frame, a positioning pin secured to the second end, a grip positioned along the intermediate extent, the positioning pin having a cylindrical body and a head, the cylindrical body being slidably received within the slotted track; a latching lever having first and second ends, a handle positioned upon the first end of the latching lever and an arcuate opening formed in the second end of the latching lever, the arcuate opening having first and second extents and a centrally formed cam, a pivot pin formed upon the centrally formed cam, the pivot pin being slidably received within the slotted track; the access door having a closed orientation wherein the access door covers the frame, the access door having an opened orientation wherein the access door is positioned at approximately a 90 degree angle to the frame, the access door being secured into the opened orientation by rotating the first end of the latching lever towards rearward wall of the frame and whereby rotation of the cam urges the positioning pin into the latching recess.