Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. WO2020113220 - ÉLÉMENT DE FIXATION DE LIMITATION DE COUPLE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

WHAT IS CLAIMED IS:

1. A torque limiting fastener comprising:

a body defining a first body portion and a second body portion, the first body portion and the second body portion extending from a first end of the body to a second end of the body, the body comprising:

an inner surface extending from the first end of the body to the second end of the body;

an outer surface extending from the first end of the body to the second end of the body;

an inner threadform extending substantially along a length of the inner surface of the second body portion; and

a controlled break region disposed at an intersection of the first body portion and the second body portion, the controlled break region including an outer surface break point formed into the outer surface and an inner surface break point formed into the inner surface, the outer surface break point and the inner surface break point defining a shear plane therebetween.

2. The torque limiting fastener of claim 1, further comprising a torque rating displayed on the outer surface of the second body portion.

3. The torque limiting fastener of claim 1, wherein the torque rating is at least one of stamped into the outer surface of the second body portion and painted onto the outer surface of the second body portion.

4. The torque limiting fastener of claim 1, wherein the second body portion is comprised of a nut disposed within the second body portion and in contact with the inner surface of the second body portion.

5. The torque limiting fastener of claim 3, wherein the nut is removeable from the second body portion.

6 The torque limiting fastener of claim 3, wherein the nut is a hex nut.

7. The torque limiting fastener of claim 3, wherein the nut is formed from one of aluminum, steel, copper, aluminum alloy, stainless steel, brass, and plastic.

8. The torque limiting fastener of claim 1, wherein the first body portion includes a stop ridge extending substantially around a circumference of the first body portion, the stop ridge being proximate to the controller break region.

9. The torque limiting fastener of claim 1, wherein the outer surface of the first body portion is comprised of a hexagonal shape.

10. The torque limiting fastener of claim 1, wherein the outer surface of the second body portion includes a hexagonal shape.

11. The torque limiting fastener of claim 1, wherein the inner surface of the first body portion is substantially a constant diameter from the first end to the controlled break region.

12. The torque limiting fastener of claim 1, further comprising an outer tapered region along the outer surface of the second body portion, the outer tapered region being proximate to the controlled break region, with a narrowest portion of the outer tapered region being proximate to the controlled break region and the outer tapered region widening as the distance from the controlled break region increases.

13. The torque limiting fastener of claim 1 wherein the inner threadform has a substantially uniform diameter between a starting thread and an ending thread.

14. The torque limiting fastener of claim 1 wherein the body is formed from one of aluminum, steel, copper, an alloy, and plastic.

15. The torque limiting fastener of claim 1 wherein the inner threadform extends from a starting thread disposed proximate the first end and an ending thread disposed

proximate the second end.

16. The torque limiting fastener of claim 1 further comprising an inner tapered region disposed along the inner surface proximate the controlled break region, with a narrowest portion of the inner tapered region being proximate to the controlled break region, the inner tapered region widening as the distance from the controlled break region increases.

17. The torque limiting fastener of claim 1 wherein breaking of the fastener along the shear plane does not distort the inner surface break point along the inner surface proximate to the shear plane.

18. The torque limiting fastener of claim 1 wherein the shear plane is one of a substantially flat shear plane, a conical shear plane, and an inverted conical shear plane.

19. The torque limiting fastener of claim 1 wherein the outer surface is a first outer surface, the torque limiting fastener further comprising a nut retainer disposed between a second outer surface of a nut within the second body portion and the inner surface of the second body portion.

20. The torque limiting fastener of claim 1 further comprising an outer tapered portion that tapers toward a nut disposed within the second portion and an inner tapered portion that tapers toward the nut disposed within the second portion.