Fastener assembly having marginal end portion of body deformed about captured nut
This invention provides a fastener ( 20 ) that is adapted to be mounted in a hole provided in a wall (not shown). The improved fastener comprises: an elongated tubular body ( 21 ) having a first end ( 23 ) and a second end ( 24 ), having an outwardly-extending flange ( 25 ) adjacent the first end, having an intermediate portion ( 27 ), and having a distal marginal end portion ( 37 ) adjacent the second end, the body also having an abutment surface ( 32 ) facing toward the second end; and a member ( 22 ) adapted to be inserted into the body through the second end, the member having an abutment surface ( 40 ) adapted to bear against the body abutment surface, and having an outer polygonal surface ( 41 ); and wherein the body marginal end portion ( 37 ) is adapted to be plastically deformed about the member to hold the member within the body.
1. A fastener adapted to be mounted in a hole provided in a wall, comprising:
an elongated tubular body having a first end and a second end, having an outwardly-extending flange adjacent said first end, having an intermediate portion, and having a thin-walled portion extending from said intermediate portion to said second end, said thin-walled portion being partially defined between concentric inwardly- and outwardly-facing cylindrical surfaces such that said thin-walled portion has an annular cross-section in any plane transverse to the axis of elongation of said body, said body also having an abutment surface facing toward said second end; and
a member inserted into said body through said second end, said member having an abutment surface adapted to bear against said body abutment surface, and having an outer polygonal surface; and
wherein the distal marginal end portion of said thin-walled portion adjacent said second end is plastically deformed inwardly about said member to hold said member within said body.
2. A fastener as set forth in claim 1 wherein said inwardly-facing cylindrical surface extends between said body abutment surface and said body second end.
3. A fastener as set forth in claim 2 wherein said member has an axially-extending collar.
4. A fastener as set forth in claim 3 wherein said collar is arranged within an inwardly-facing cylindrical surface on said body.
5. A fastener as set forth in claim 1 wherein said member is held firmly within such deformed marginal end portion.
6. A fastener as set forth in claim 1 wherein said member is held loosely within such deformed marginal end portion such that said member may move relative to said body.
7. A fastener as set forth in claim 1 wherein said body has an outer surface, and wherein said body is provided with a plurality of circumferentially-spaced longitudinally-extending flutes extending into said body from said outer surface in the vicinity of said intermediate portion.
8. A fastener as set forth in claim 1 wherein said body has an inner surface, and wherein said body inner surface is provided with a plurality of circularly-spaced flat surfaces that are adapted to be deformed into facing engagement with said member polygonal surface to increase the resistance to relative rotation between said member and body.
9. A fastener as set forth in claim 1 wherein said member is a nut having an internally-threaded through-bore.