[특허]Low friction bearing assembly and link apparatus

Low friction bearing assembly and link apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16C-007/00 F16C-007/02 F16C-009/04 F16C-011/06 F16C-033/20 F16C-023/04 F16C-043/02
출원번호	US-0230512 (2014-03-31)
등록번호	US-9261132 (2016-02-16)
발명자 / 주소	McNeil, Scott
출원인 / 주소	Roller Bearing Company of America, Inc.
대리인 / 주소	MKG LLC
인용정보	피인용 횟수 : 0 인용 특허 : 57

초록 ▼

A link apparatus includes a tubular member that retains 90% of ultimate tensile strength at a temperature of up to 329.44° Celsius (625° Fahrenheit). Two conical adapters are joined to ends of the tubular member. One threaded shank of a rod end is threaded into a right hand threaded base of one conical adapter, and a threaded shank of another rod end is threaded into a left hand threaded base of the other conical adapter. Each rod end has a bearing assembly disposed therein including an outer race, a ball disposed therein, and a low-friction liner disposed between the outer race and ball for mitigating moment loading on the tubular member. The cross-sectional area of the tubular member is at least as great as the cross sectional area of the rod ends. The tubular member is tensionable by rotation relative to the rod ends.

대표청구항 ▼

1. A link apparatus comprising: a tubular member manufactured from a material having at least a 90% retention of ultimate tensile strength at a temperature of up to 329.44° Celsius (625° Fahrenheit), the tubular member having a first diameter and a first lateral cross-sectional area;a first conical adapter having a first base and a first conical flare, the first conical flare being mechanically joined to a first end of the tubular member, the first conical flare defining a second diameter defined by an inner diameter of the first conical flare and having a magnitude configured to engagingly receive the first diameter, the first base member having a right hand threaded end defined by a third diameter which is less than the second diameter;a second conical adapter having a second base and a second conical flare, the second conical flare being mechanically joined to a second end of the tubular member, the second conical flare defining a fourth diameter equal to the second diameter, the second base member having a left hand threaded end defined by a fifth diameter equal to the third diameter;a first rod end having a first threaded shank and a first socket, the first threaded shank removably threaded into the right hand threaded first base of the first conical adapter, the first socket having a first bearing assembly disposed therein;a second rod end having a second threaded shank and a second socket, the second threaded shank removably threaded into the left hand threaded second base of the second conical adapter, the second socket having a second bearing assembly disposed therein; andeach of the first bearing assembly and the second bearing assembly comprising, an outer race having an inner engagement surface,a ball having an outer surface and a bore extending therethrough, the ball disposed at least partially in the outer race, the outer race being misalignable and rotatable in relation to the ball,an area of engagement defined by an interface of the inner engagement surface of the outer member and the outer surface of ball, anda liner configured to reduce friction disposed within the area of engagement;the liner mitigating moment loading on the tubular member;the first rod end and the second rod end each having a second lateral cross-sectional area;the first cross-sectional area of the tubular member is at least as great as the second cross sectional area of the first and second rod ends; andthe tubular member being tensionable by rotation relative to the first and second rod ends. 2. The link apparatus of claim 1, wherein the first and second cross-sectional areas are approximately 3.81 mm2 (0.15 in2). 3. The link apparatus of claim 1, wherein: the tubular member is rotatable about a longitudinal axis;such rotation causing the first conical flare of the first conical adapter to threadedly engage the first threaded shank of the first rod end, and the second conical flare of the second conical adapter to threadedly engage the second threaded shank of the second rod end; andthereby applying tension to the tubular member and the first and second bearing assemblies. 4. The link apparatus of claim 1, wherein the first outer diameter of the tubular member is about 25.4 mm (1.00 inch) and a thickness t of the tubular member is about 1.27 mm (0.05 inch). 5. The link apparatus of claim 1, wherein the first outer diameter of the tubular member is 25.4 mm (1.00 inch) and a thickness t of the tubular member is 1.27 mm (0.049 inch). 6. The link apparatus of claim 5, wherein the tubular member is fabricated from alloy A-286. 7. The link apparatus of claim 1, wherein the tubular member is fabricated from alloy A-286. 8. The link apparatus of claim 1, wherein the outer race of the first bearing assembly is integral with the first socket of the first rod end, and the outer race of the second bearing assembly is integral with the second socket of the second rod end. 9. The link apparatus of claim 1, wherein the mechanical joining comprises at least one weld. 10. The link apparatus of claim 1, wherein the mechanical joining comprises at least one swaged end of the tubular member. 11. The link apparatus of claim 1, wherein the liner comprises polytetrafluoroethylene. 12. The link apparatus of claim 1, wherein the liner comprises perfluorooctanoic acid polytetrafluoroethylene. 13. The link apparatus of claim 1, wherein the liner comprises perfluorooctanoic acid free polytetrafluoroethylene. 14. The link apparatus of claim 1, wherein at least one of the first and second bearing assemblies comprise a load slot bearing assembly.

이 특허에 인용된 특허 (57)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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