IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0971987
(2004-10-21)
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발명자
/ 주소 |
- Matich,Charles B.
- Schwark,Steven L.
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출원인 / 주소 |
|
대리인 / 주소 |
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인용정보 |
피인용 횟수 :
5 인용 특허 :
15 |
초록
▼
Dual load path fastener systems, and methods for their use, are described herein. In one embodiment, a dual load path fastener system includes first and second fasteners. The first fastener has a first end portion, a second end portion spaced apart from the first end portion, and a hole extending th
Dual load path fastener systems, and methods for their use, are described herein. In one embodiment, a dual load path fastener system includes first and second fasteners. The first fastener has a first end portion, a second end portion spaced apart from the first end portion, and a hole extending through the first and second end portions. The second fastener is configured to extend through the hole in the first fastener with a third end portion of the second fastener protruding beyond the first end portion of the first fastener and a fourth end portion of the second fastener protruding beyond the second end portion of the first fastener. The fastener system of this embodiment further includes a spacer portion configured to support the third end portion of the second fastener in such a way that the third end portion is longitudinally supported independently of the first fastener.
대표청구항
▼
The invention claimed is: 1. An assembly comprising: a first part having a first through-hole; a second part having a second through-hole; a first fastener having a third through-hole, the first fastener extending through the first and second through-holes and pressing the first and second parts to
The invention claimed is: 1. An assembly comprising: a first part having a first through-hole; a second part having a second through-hole; a first fastener having a third through-hole, the first fastener extending through the first and second through-holes and pressing the first and second parts together; a second fastener extending through the third through-hole in the first fastener; and a means for preventing an axial load in the second fastener pressing the first and second parts together from being carried by any portion of the first fastener or by any third part engaged with the first fastener. 2. The assembly of claim 1 wherein the first fastener further includes a head portion toward a first end and an engagement portion toward a second end, and wherein the assembly further comprises a locking element engaging the engagement portion of the first fastener to press the first and second parts together. 3. The assembly of claim 1 wherein the first fastener further includes a head portion toward a first end and a threaded portion toward a second end, and wherein the assembly further comprises a locking element threadably engaging the threaded portion of the first fastener to press the first and second parts together. 4. The assembly of claim 1 wherein the first fastener further includes a first head portion toward a first end and a first engagement portion toward a second end, wherein the second fastener further includes a second head portion toward a third end and a second engagement portion toward a fourth end, and wherein the assembly further comprises: a first locking element engaging the first engagement portion of the first fastener to press the first and second parts together; and a second locking element engaging the second engagement portion of the second fastener to press the first and second parts together independently of the first fastener. 5. The assembly of claim 1 wherein the first fastener further includes a first head portion toward a first end and a first engagement portion toward a second end, wherein the second fastener further includes a second head portion toward a third end and a second engagement portion toward a fourth end, and wherein the assembly further comprises: a first locking element engaging the first engagement portion of the first fastener to press the first and second parts together; and a second locking element at least generally similar in structure and function to the first locking element, wherein the second locking element engages the second engagement portion of the second fastener to press the first and second parts together independently of the first fastener. 6. The assembly of claim 1 wherein the second fastener has a first end portion spaced apart from a second end portion, and wherein the assembly further comprises a spacer portion configured to support the first end portion of the second fastener, whereby the first end portion is longitudinally supported independently of the first fastener. 7. The assembly of claim 1 wherein the second fastener has a head portion toward a first end and an engagement portion toward a second end, and wherein the assembly further comprises a spacer portion supporting the head portion of the second fastener, whereby the head portion is longitudinally supported independently of the first fastener. 8. The assembly of claim 1 wherein the first fastener has a first head portion toward a first end and a first engagement portion toward a second end, wherein the second fastener has a second head portion toward a third end and a second engagement portion toward a fourth end, and wherein the assembly further comprises a spacer portion having a recess receiving one of the first head portion and the first engagement portion, the spacer portion supporting the second head portion of the second fastener so that the second head portion is longitudinally supported independently of the first fastener. 9. The assembly of claim 1 wherein the first part is a first aircraft part and the second part is a second aircraft part. 10. The assembly of claim 1 wherein the first part is a portion of an aircraft flap transmission and the second part is a portion of a flap track. 11. A method for attaching a first part to a second part, the method comprising: inserting a first fastener through a first hole in the first part and a second hole in the second part; placing the first fastener in tension to press the first part against the second part; inserting a second fastener through a third hole in the first fastener; and placing the second fastener in tension to press the first part against the second part independently of the first fastener, by means for preventing an axial load in the second fastener from being carried by any portion of the first fastener or any third part engaged with the first fastener, whereby the tension in the second fastener is carried by the first and second parts. 12. The method of claim 11, further comprising positioning a spacer over a first portion of the first fastener to support a second portion of the second fastener, whereby the second portion of the second fastener is longitudinally supported independently of the first fastener. 13. The method of claim 11, further comprising: positioning a first spacer over a first portion of the first fastener to support a second portion of the second fastener, whereby the second portion of the second fastener is longitudinally supported independently of the first fastener; and positioning a second spacer over a third portion of the first fastener to support a fourth portion of the second fastener, whereby the fourth portion of the second fastener is longitudinally supported independently of the first fastener. 14. A method for attaching a first part to a second part, the method comprising: inserting a first fastener through a first hole in the first part and a second hole in the second part; installing a first locking element on a first engagement portion of the first fastener; tightening the first locking element to clamp the first and second parts together; inserting a second fastener through a third hole in the first fastener; installing a second locking element on a second engagement portion of the second fastener; and tightening the second locking element to further clamp the first and second parts together, by means for preventing an axial load in the second fastener from being carried by any portion of the first fastener or any third part engaged with the first fastener, whereby the tension in the second fastener is carried by the first and second parts. 15. The method of claim 14, further comprising inserting the second fastener through a fourth hole in a spacer, wherein tightening the second locking element includes pressing the spacer against the first part. 16. The method of claim 14, further comprising inserting the second fastener through a fourth hole in a spacer, the spacer having a recess configured to receive the first locking element, wherein tightening the second locking element includes turning a nut against the spacer. 17. The method of claim 14, further comprising: inserting the second fastener through a fourth hole in a first spacer, wherein tightening the second locking element includes pressing the first spacer against the first part; and inserting the second fastener through a fifth hole in a second spacer, wherein tightening the second locking element includes pressing the second spacer against the second part.
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