COVER SECURED BY CAPTIVE FASTENER
A cover assembly is disclosed. In various embodiments, the cover assembly includes a cover configured to close a passageway through a casing, the cover having a first keyhole slot; and a first captive fastener configured to extend through the first keyhole slot and into the casing.
1 . A cover assembly, comprising:
a cover configured to close a passageway through a casing, the cover having a first keyhole slot; and
a first captive fastener configured to extend through the first keyhole slot and into the casing.
2 . The cover assembly of claim 1 , wherein the casing defines a casing contour and the cover defines a cover contour having the same shape as the casing contour.
3 . The cover assembly of claim 2 , wherein the cover is configured to slide along the casing in a longitudinal direction.
4 . The cover assembly of claim 3 , wherein the first keyhole slot is disposed on a first lateral side of the cover.
5 . The cover assembly of claim 4 , wherein the cover includes a second keyhole slot disposed on a second lateral side of the cover.
6 . The cover assembly of claim 5 , wherein the first keyhole slot and the second keyhole slot are aligned in the longitudinal direction.
7 . The cover assembly of claim 6 , wherein the first captive fastener includes a threaded body configured to extend through the casing.
8 . The cover assembly of claim 7 , wherein the first captive fastener includes a first blocking member disposed on a first distal end of the first captive fastener.
9 . The cover assembly of claim 6 , further comprising a second captive fastener configured to extend through the second keyhole slot and into the casing.
10 . The cover assembly of claim 1 , wherein the first captive fastener includes a first blocking member configured to prevent the first captive fastener from being removed from the casing.
11 . The cover assembly of claim 10 , further comprising a second captive fastener configured to extend through a second keyhole slot and into the casing, the second captive fastener including a second blocking member configured to prevent the second captive fastener from being removed from the casing.
12 . The cover assembly of claim 11 , wherein the first keyhole slot and the second keyhole slot are aligned in a longitudinal direction and disposed, respectively, on a first lateral side and a second lateral side of the cover with respect to the longitudinal direction.
13 . The cover assembly of claim 12 , wherein the first blocking member comprises at least one of a deformed portion, a weld and a pin member disposed on a first distal end of the first captive fastener.
14 . A gas turbine engine, comprising:
a casing;
a cover configured to close a passageway through the casing, the cover having a first keyhole slot and a second keyhole slot, both the first keyhole slot and the second keyhole slot aligned along a longitudinal direction;
a first captive fastener configured to extend through the first keyhole slot and into the casing; and
a second captive fastener configured to extend through the second keyhole slot and into the casing.
15 . The gas turbine engine of claim 14 , wherein the first keyhole slot is disposed on a first lateral side of the cover and the second keyhole slot is disposed on a second lateral side of the cover.
16 . The gas turbine engine of claim 15 , wherein the first captive fastener includes a first blocking member configured to prevent the first captive fastener from being removed from the casing and the second captive fastener includes a second blocking member configured to prevent the second captive fastener from being removed from the casing.
17 . The gas turbine engine of claim 16 , wherein the first blocking member comprises at least one of a first deformed portion, a first weld and a first pin member disposed on a first distal end of the first captive fastener and the second blocking member comprises at least one of a second deformed portion, a second weld and a second pin member disposed on a second distal end of the second captive fastener.
18 . A method for accessing a component housed within a casing, comprising:
releasing a first captive fastener extending through a first keyhole slot of a cover and into the casing;
releasing a second captive fastener extending through a second keyhole slot of the cover and into the casing;
sliding the cover in a longitudinal direction with respect to the first keyhole slot and the second keyhole slot; and
removing the cover from the casing to expose the component.
19 . The method of claim 18 , wherein releasing the first captive fastener includes unthreading the first captive fastener a first distance from the casing and releasing the second captive fastener includes unthreading the second captive fastener a second distance from the casing.
20 . The method of claim 19 , wherein the first captive fastener includes a first blocking member configured to prevent the first captive fastener from being removed from the casing and the second captive fastener includes a second blocking member configured to prevent the second captive fastener from being removed from the casing.