Mechanical link arms

Details Mechanical link arms Mechanical link arms

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 7/02 (2006.01) B29D 22/00 (2006.01) B60K 20/02 (2006.01) B60S 1/24 (2006.01) F16H 51/00 (2006.01) F16H 59/04 (2006.01)

Patent

CA 2166674

A mechanical link arm for connecting together two rotary windscreen wiper shafts comprises a hollow tube of plastics material integrally formed by gas injection moulding with a socket connector at each end. Each socket connector closes off the end of the tube and serves for connection to a complementary ball connector on an associated one of the windscreen wiper shafts. Such a link arm is produced in one piece in a single fabrication step, and is therefore capable of being manufactured at significantly less cost than a conventional link arm. Furthermore the link arm is fabricated from a suitable plastics material so as to be both strong and light, and in addition so as to permit some flexing of the arm in the event of a mechanical overload so that such a mechanical overload will be less likely to cause burning out of the wiper motor.

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