US 12,435,747 B2
Break-off bolt with torque-limiting section
Julien Dossmann, Gevrey-Chambertin (FR); Bruno Peltier, Gevrey-Chambertin (FR); and Laurent Petrignet, Gevrey-Chambertin (FR)
Assigned to TYCO ELECTRONICS—SIMEL, Gevrey-Chambertin (FR)
Filed by Tyco Electronics—Simel, Gevrey-Chambertin (FR)
Filed on Jan. 26, 2022, as Appl. No. 17/585,181.
Application 17/585,181 is a continuation of application No. PCT/EP2020/071081, filed on Jul. 27, 2020.
Claims priority of application No. 19305988 (EP), filed on Jul. 30, 2019.
Prior Publication US 2022/0145923 A1, May 12, 2022
Prior Publication US 2024/0418199 A9, Dec. 19, 2024
Int. Cl. F16B 31/02 (2006.01); F16B 35/00 (2006.01); H01R 4/30 (2006.01); H01R 4/36 (2006.01)
CPC F16B 31/021 (2013.01) [F16B 35/005 (2013.01); H01R 4/307 (2013.01); H01R 4/36 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A break-off assembly, comprising:
a break-off bolt, comprising:
(a) a first thread section and a second thread section, the first and the second thread section comprising the same external thread having a minor diameter; and
(b) a torque-limiting section arranged between the first and second thread section and having no thread with an outer diameter larger than the minor diameter of the external thread; and
a nut having internal threads,
wherein a length of the torque-limiting section from the first thread section to the second thread section is less than a thickness of a nut threaded onto the first thread section or the second thread section,
whereby the internal threads of the nut cut into the torque limiting section as the nut travels from the first thread section to the second thread section, a torque for breaking the break-off bolt is lower than a torque for overcoming the torque-limiting section.