LOCK WASHER WITH TWO RINGS OF TEETH

• Main Author: DELCHER, CHRISTOPHE
• Format: Patent
• Language: English; French; German
• Published: 23.07.2014
• Subjects: BLASTING; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention relates to a locking washer (39) comprising two washer crowns (10, 26) having each an engagement face (11, 11′), the engagement face having a plurality of asymmetrical, radial teeth (16, 16′), each of the asymmetrical, radial teeth having, on the one hand, a crest (20, 20′) and a tooth bottom (18, 18′) separated angularly from the crest; and, on the other, a sliding side (22, 22′) which inclines and extends angularly between the crest (20,20′) and the tooth bottom (18, 18′), wherein the engagement faces (11, 11′) of the washer crowns are suitable for being applied against each other, whereas the sliding sides (22, 22′) come into contact with each other, respectively, along a contact surface. The engagement face (11′) of at least one of the washer crowns (26) has a recess (28) in order to reduce the contact surface of the sliding sides (22, 22′).