BOLT CONNECTING SPLICE PLATE

• Main Authors: TEFUN MAKOTO, WATABE YOSHIYUKI
• Format: Patent
• Language: English
• Published: 12.07.1996
• Edition: 6
• 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

PURPOSE: To improve connection resistance by applying a steel mesh having strength higher than that of a connected mother steel plate to a plate surface, and thereby attaining a high sliding coefficient on a frictional connection surface of a high power bolt. CONSTITUTION: The stronger steel wire is, the higher the frictional resistance is. The steel wire necessarily has hardness higher than that of a lowermost connected steel plate 1 and a splice plate 2. The hardness ranges between twice of the steel plate 1 and eight times of the steel plate 1, only by improving friction as biting anchor effect of the steal wire due to bolt fastening. A diameter of the steel wire may be not less than 0.2mm in order to secure surface roughness through blasting treatment. A sliding coefficient is dependent on roughness and hardness of a frictional connection surface. The frictional coefficient is saturated or lowered in the case of excessive wire diameter and roughness, so that the wire diameter is not more than 1.0mm. The roughness of the frictional connection surface is influenced by mesh, which is preferably not more than 100 mesh. Connection strength of the steel mesh must be a value which is only enough not to escape. It is thus possible to easily obtain a high and stable sliding coefficient.