COIL SPRING FOR FRICTION-LOCK MECHANISMS

A mechanical lock having a housing and a rod axially slidable through the housing. A coil spring is arranged about the rod to engage the rod surface and thereby lock the rod against movement through the housing. The coil spring can be unwound to an unlocking condition of enlarged internal diameter s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	PORTER, CLYDE R
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACCESSORIES THEREFOR BEDS BLASTING BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS ORWINDOWS CHAIRS COFFEE MILLS DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING DOMESTIC ARTICLES OR APPLIANCES ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS FURNITURE GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HANDCUFFS HEATING HUMAN NECESSITIES KEYS LIGHTING LOCKS MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING SAFES SHOCK-ABSORBERS SOFAS SPICE MILLS SPRINGS SUCTION CLEANERS IN GENERAL THERMAL INSULATION IN GENERAL WEAPONS WINDOW OR DOOR FITTINGS
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Beschreibung
Zusammenfassung:	A mechanical lock having a housing and a rod axially slidable through the housing. A coil spring is arranged about the rod to engage the rod surface and thereby lock the rod against movement through the housing. The coil spring can be unwound to an unlocking condition of enlarged internal diameter sufficient to allow sliding movement of the rod. The rod surface is scored in a direction generally transverse to the rod axis and the coil spring has coil surfaces scored in a direction generally parallel to the scoring on the rod surface. Interlocking occurs between the rod and coil scored surfaces in the locking condition to enhance locking of the rod against axial movement through the coil spring.