A device for indicating the loosening of wheel nuts/bolts and for counteracting the loosening of the nuts/bolts comprising two pairs of bodies 2 having a indicator 3 and grooved toothed bore 4 for engaging with the nut/bolt, wherein the bodies are joined by an intermediate link 5. In use the bodies are mounted to two adjacent wheel mounting nuts/bolts. When a nut/bolt loosens, the link is deformed allowing at least one body mounted to the loosening nut/bolt to rotate with the nut/bolt, rotating the indicator 3 until a predefined loosening angle 8 relative to the starting position has been reached. If the nut/bolt is still rotating e.g. unscrewing, the body mounted to the nut/bolt will deform resulting in the nut/bolt slipping/ratcheting or the like inside the body, whilst the loosening torque of the nut/bolt is higher than the counterforce 9 of the link that pulls the body back in an anti-loosening direction 11. The deformation of the body maintains the position indicator 3 at the predefined loosening angle 8 and prevents the link from breaking. Preferably the device is made from polyethylene (PE), low density polyethylene (LDPE) or linear low density polyethylene (LLDPE).
A twin indicator with a pair of deformable bodies connected via a deformable intermediate link
2020-06-17
Patent
Electronic Resource
English
IPC: | F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / B60B VEHICLE WHEELS , Räder für Fahrzeuge |
European Patent Office | 2019
|NTIS | 1968
|The librational dynamics of deformable bodies
NTRS | 1969
|The librational dynamics of deformable bodies
NTRS | 1970
|Deformable chassis with deformable wheels and working method of deformable chassis
European Patent Office | 2023
|