Temporary fastener with projecting tool-guide bushing

• US 6,196,779 B1
• Filed: 02/11/1999
• Issued: 03/06/2001
• Est. Priority Date: 02/11/1999
• Status: Expired due to Fees

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Falk, Randall G.
• Primary Examiner(s): Saether, Flemming
• Application Number:
  US09/248,413
• Time in Patent Office: 754 Days
• Field of Search: 411/57.1, 411/54, 411/397, 411/60.1, 408/79, 408/72.B, 408/97, 408/115.R, 408/103, 269/48-48
• US Class Current: 411/54.1
• CPC Class Codes: B25B 31/005 for temporarily connecting sheets before or during assembly operations
• CPC Class Codes: Y10T 408/557 Frictionally engaging sides of opening in work
• CPC Class Codes: Y10T 408/56245 including tool-guide [or bushing]

Abstract

A fastener for temporarily securing together at least one part and a tool includes a body having a longitudinal axis, a part-engaging surface for bearing against the at least one part, and an outer surface that defines a guide bushing. A fastening mechanism projects axially from the body and is adapted to extend through the at least one part for securing the at least one part against the part-engaging surface. The fastener further includes an engaging member on the body and having a tool-engaging surface that is engageable with the tool for securing the tool to the at least one part.

Claims

1. A fastener for temporarily securing together at least one part and a tool, the fastener comprising:

a body having a longitudinal axis, a part-engaging surface for bearing against the at least one part, and an outer surface that defines a guide bushing adapted to guide the tool;

a fastening mechanism projecting axially from the body and adapted to extend through the at least one part, the fastening mechanism being axially moveable with respect to the body for clamping the at least one part between the part-engaging surface and the fastening mechanism; and

an engaging member on the body, wherein the engaging member has a tool-engaging surface adapted to engage the tool for clamping the tool between the engaging member and the at least one part.

2. The fastener of claim 1, wherein the body includes a first portion and a radial projection extending radially beyond the first portion and wherein the radial projection defines the guide bushing.

3. The fastener of claim 2, wherein the radial projection further has a threaded portion, and the engaging member is a threaded nut engageable with the threaded portion.

4. The fastener of claim 2, wherein the first portion and the projection are integrally formed as a single piece.

5. The fastener of claim 1, wherein the engaging member is detachable from the body.

6. The fastener of claim 1, wherein the tool-engaging surface is non-coplanar with the part-engaging surface when the part-engaging surface is bearing against the at least one part and when the engaging member is engaged with the tool.

7. The fastener of claim 1, wherein the tool-engaging surface is disposed radially outwardly relative to the part-engaging surface when the engaging member is engaged with the tool.

8. The fastener of claim 1, wherein the tool-engaging surface is annular.

9. The fastener of claim 8, wherein the engaging member includes an annular insert that defines at least a portion of the tool-engaging surface.

10. The fastener of claim 1, wherein the engaging member includes a spacer that defines at least a portion of the tool-engaging surface.

11. The fastener of claim 1, wherein the body has a threaded portion, and the engaging member is a threaded nut engageable with the threaded portion.

12. The fastener of claim 11, wherein the nut has a knurled exterior surface.

13. A fastener for releasably securing together at least two parts and a tool, one of the at least two parts having a first surface, the fastener comprising:

a body having a longitudinal axis, a part-engaging surface for bearing against the first surface, a threaded portion, and a bushing portion adapted to guide the tool;

at least one tang projecting axially from the body, the at least one tang being adapted to extend through the at least two parts and being axially moveable with respect to the body for clamping the at least two parts between the part-engaging surface and the at least one tang; and

a threaded nut engageable with the threaded portion and having a tool-engaging surface adapted to engage the tool for clamping the tool between the nut and the first surface such that the tool may be removed from the at least two parts by disengaging the nut from the threaded portion, without removing the body and the at least one tang from the at least two parts.

14. A fastener for temporarily securing together a part and a tool, the part having a first surface, the tool having a hole, the fastener comprising:

a body having a longitudinal axis, a radially extending part-engaging surface for bearing against the first surface, a threaded portion and a guide bushing adapted to mate with the hole of the tool;

at least one tang projecting axially from the body, the at least one tang being adapted to extend through the part and being axially moveable with respect to the body for clamping the part between the radially extending part-engaging surface and the at least one tang; and

a threaded nut engageable with the threaded portion and having a radially extending tool-engaging surface adapted to engage the tool for clamping the tool between the nut and the first surface such that the tool may be removed from the part by disengaging the nut from the threaded portion, without removing the body and the at least one tang from the part.

15. The fastener of claim 14 wherein the body includes a first portion and a radial projection extending radially beyond the first portion, the first portion including the radially extending part engaging surface, and the radial projection including the threaded portion and the guide bushing.