Apparatus and method for securing an exit device to a door

A securing mechanism coupling an exit device to a midrail in a door, the securing mechanism comprising:

• a shaft having a first end and a second end and defining a longitudinal axis;
• a bracket coupled to the exit device, the bracket defining a first aperture and a second aperture, the first end of the shaft extending through the first aperture and the second end of the shaft extending through the second aperture;
• a first anchor slideably coupled to the shaft and being moveable along the longitudinal axis between a first locked position and a first unlocked position, the first anchor frictionally engaging the midrail in the first locked position and being disengageable from the midrail in the first unlocked position;
• and
• a second anchor slideably coupled to the shaft and being moveable along the longitudinal axis between a second locked position and a second unlocked position, the second anchor frictionally engaging the midrail in the second locked position;
• wherein the bracket matingly engages the first and second anchors, substantially preventing the first anchor and the second anchor from rotating about the longitudinal axis with respect to the door.

A securing mechanism coupling an exit device to a midrail in a door, the securing mechanism comprising:

• a shaft having a first end and a second end and defining a longitudinal axis;
• a bracket coupled to the exit device, the bracket defining a first aperture and a second aperture, the first end of the shaft extending through the first aperture and the second end of the shaft extending through the second aperture;
• a first anchor slideably coupled to the shaft and being moveable along the longitudinal axis between a first locked position and a first unlocked position, the first anchor frictionally engaging the midrail in the first locked position and being disengageable from the midrail in the first unlocked position;
• and
• a second anchor slideably coupled to the shaft and being moveable along the longitudinal axis between a second locked position and a second unlocked position, the second anchor frictionally engaging the midrail in the second locked position;
• wherein the first anchor includes a first plurality of axially extending protrusions, the first plurality of axially extending protrusions inatingly engaging the midrail when the first anchor is in the first locked position.

A securing mechanism coupling an exit device to a midrail in a door, the securing mechanism comprising:

• a threaded shaft having a first end and a second end and defining a longitudinal axis;
• a bracket coupled to the exit device, the bracket defining a first aperture and a second aperture, the first end extending through the first aperture and the second end extending through the second aperture;
• a first anchor threadably coupled to the shaft and being moveable along the longitudinal axis;
• and
• a second anchor threadably coupled to the shaft and being moveable along the longitudinal axis, the securing mechanism having a locked condition and an unlocked condition, the first and second anchors frictionally engaging the midrail in the locked condition and being positioned toward the first and second ends respectively when the securing mechanism is in the locked condition, the first and second anchors being disengageable from the midrail in the unlocked condition.

A securing mechanism coupling an exit device to a midrail in a door, the securing mechanism comprising:

• a threaded shaft having a first end and a second end and defining a longitudinal axis;
• a bracket coupled to the exit device, the bracket defining a first aperture and a second aperture, the first end extending through the first aperture and the second end extending through the second aperture;
• a first anchor threadably coupled to the shaft and being moveable along the longitudinal axis;
• and
• a second anchor threadably coupled to the shaft and being moveable along the longitudinal axis, the securing mechanism having a locked condition and an unlocked condition, the first and second anchors frictionally engaging the midrail in the locked condition and being positioned toward the first and second ends respectively when the securing mechanism is in the locked condition, the first and second anchors being disengageable from the midrail in the unlocked condition;
• wherein the first anchor includes a first plurality of axially extending protrusions, the first plurality of axially extending protrusions matingly engaging the midrail when the securing mechanism is in the locked condition.

A method of coupling an exit device to a midrail in a door with a securing mechanism, the securing mechanism including a bracket defining a first aperture and a second aperture, a threaded shaft having a first end and a second end and defining a longitudinal axis, the first end extending through the first aperture and the second end extending through the second aperture, a first anchor slideably coupled to the shaft, and a second anchor slideably coupled to the shaft, the method comprising:

• coupling the bracket to the exit device;
• rotating the shaft in a first direction about the longitudinal axis;
• moving the first anchor along the shaft toward the first end;
• moving the second anchor along the shaft toward the second end;
• and
• applying a compressive force against at least a portion of the midrail with the first and second anchors to secure the exit device and the securing mechanism to the midrail.

A method of coupling an exit device to a midrail in a door with a securing mechanism, the securing mechanism including a bracket defining a first aperture and a second aperture, a threaded shaft having a first end and a second end and defining a longitudinal axis, the first end extending through the first aperture and the second end extending through the second aperture, a first anchor slideably coupled to the shaft, and a second anchor slideably coupled to the shaft, the method comprising:

• coupling the bracket to the exit device;
• rotating the shaft in a first direction about the longitudinal axis;
• moving the first anchor along the shaft toward the first end;
• moving the second anchor along the shaft toward the second end;
• and
• applying a compressive force against at least a portion of the midrail with the first and second anchors to secure the exit device and the securing mechanism to the midrail;
• wherein the first anchor includes a first plurality of axially extending projections and the second anchor includes a second plurality of axially extending projections and the method further comprises engaging the midrail with the first plurality of axially extending projections and the second plurality of axially extending projections.

A securing mechanism coupling an exit device to a midrail in a door, the securing mechanism comprising:

• a shaft having a first end and a second end;
• a bracket coupled to the exit device, the bracket defining an aperture, the shaft extending through the aperture;
• an anchor slideably coupled to the shaft and being moveable along the longitudinal axis between a locked position and an unlocked position, the anchor frictionally engaging the midrail in the locked position to secure the exit device to the midrail;
• and
• a lock moveable along the shaft and being engageable with the anchor to secure the anchor in the locked position.