| 摘要 |
A blind fastener device for fastening at least two workpieces, including a sleeve, an expander having a tensioning section, a locking section, and an expansion section, and a nut. A portion of the expander passes through the sleeve to cooperate with the nut so that relative rotation of the expander and nut draws the expander's distal end toward the sleeve's proximal end thereby drawing a portion of the expansion section of the expander into a structural region located on the sleeve and expanding at least a portion of the sleeve's structural region, and drawing a portion of the locking section past the sleeve's distal end toward the sleeve's proximal end and deforming at least a portion of the sleeve's distal end to a locked state. The sleeve may be configured as a multi-section sleeve having a sleeve retainer to locate the sections in a predetermined relationship. |
| 主权项 |
1. A blind fastener, comprising:
a sleeve (100) having a sleeve proximal end (120), a sleeve distal end (130), a sleeve length (155), a sleeve outer diameter (140), a sleeve inner diameter (150) and a structural region (170); an expander (400) having an expander proximal end (410), an expander distal end (420), a tensioning section (450), a locking section (430), and an expansion section (440) between the tensioning section (450) and the locking section (430), wherein the expansion section (440) has an expansion section diameter (442) and an expansion section transition (444), and a portion of the sleeve (100) has the sleeve inner diameter (150), in an initial state, less than the maximum expansion section diameter (442); and a nut (500); wherein a portion of the expander (400) passes through the sleeve (100) to cooperate with the nut (500) so that relative rotation of the expander (400) and nut (500):
(i) draws the expander distal end (420) toward the sleeve proximal end (120);(ii) thereby drawing a portion of the expansion section (440) of the expander (400) into the structural region (170) of the sleeve (100) and expanding at least a portion of the structural region (170) of the sleeve (100) from the initial state to an expanded state; and(iii) thereby drawing a portion of the locking section (430) past the sleeve distal end (130) toward the sleeve proximal end (120) and deforming at least a portion of the sleeve distal end (130) to a locked state. |
