MOVABLE CONTACT AND SWITCH USING MOVABLE CONTACT

• Main Authors: KANAZAWA AKIHIRO, ITO TAKESHI, OYAMADA SATORU, AMANO KAORI, OKUMA SATORU
• Format: Patent
• Language: English; Japanese
• Published: 18.06.2020
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

To provide a long-life movable contact in which cracks are unlikely to occur in a metal spring even when the movable contact having a protruding portion provided on the peripheral edge of the metal spring is repeatedly pressed.SOLUTION: A movable contact includes a dome-shaped bulging portion 3 having a reversible central portion, which is a thin metal spring, at least a pair of opposed protruding portions 4 protruding obliquely downward from the outer peripheral edge 2 of the bulging portion 3, and the protruding portion 4 has a straight portion 4a that extends substantially linearly from a connecting portion 8 with the outer peripheral edge 2 of the bulging portion 3 toward the tip of the protruding portion 4.SELECTED DRAWING: Figure 2 【課題】 金属ばねの周縁部に突出部が設けられた可動接点を繰り返し押圧操作しても、金属ばねにクラックが発生しにくい長寿命の可動接点を提供するものである。【解決手段】 薄板状の金属ばねであって、反転可能な中央部分を有するドーム形状の膨出部３と、膨出部３の外周縁２から斜め下方に突出する少なくとも一対の対向する突出部４と、を備え、突出部４は、膨出部３の外周縁２との連結部８から突出部４の先端部に向けてほぼ直線的に延びる直線部４ａを有する。【選択図】 図２