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    • 5. 发明授权
    • Safety switch
    • 安全开关
    • US09064656B2
    • 2015-06-23
    • US13497030
    • 2010-06-16
    • Norifumi ObataEtsurou KomoriTakeo Yasui
    • Norifumi ObataEtsurou KomoriTakeo Yasui
    • H01H9/20H01H27/00H01H3/42H01H9/28H01H13/60
    • H01H27/002H01H3/42H01H9/286H01H13/60
    • A safety switch is improved by the feature of staying in an open position in the event of breakage of a working rod or breakage or dropout of an operation portion and having a simple structure facilitating size reduction. Even if a rotary shaft is released from a supported state in an operation portion because an operating force of an operation or the number of operations of extracting an actuator from the operation portion exceeds a breakage tolerance, a working rod is permitted to move in an urging direction of a coil spring and is assuredly moved to the operation portion. Therefore, a switch can be assuredly set to an open position and, hence, the safety switch can achieve the safety improvement.
    • 通过在工作棒断裂或操作部分断裂或脱落的情况下保持在打开位置并且具有便于尺寸减小的简单结构的特征来改进安全开关。 即使旋转轴从操作部的支撑状态被释放,因为操作的操作力或从操作部提取致动器的操作次数超过了断裂公差,所以允许工作杆以推动力移动 螺旋弹簧的方向被确定地移动到操作部。 因此,可以将开关确定地设定为打开位置,因此安全开关可以实现安全性的改善。
    • 6. 发明申请
    • Safety Switch
    • 安全开关
    • US20080121499A1
    • 2008-05-29
    • US11886169
    • 2006-03-03
    • Etsurou KomoriTakao FukuiNorifumi ObataTakeo Yasui
    • Etsurou KomoriTakao FukuiNorifumi ObataTakeo Yasui
    • H01H9/28
    • H01H9/24H01H27/002
    • A safety switch capable of detecting withdrawal of an actuator from a switch main unit in a sure and reliable manner even when the safety switch, including a lock mechanism, is in a locked condition and an attempt is made to forcibly withdraw the actuator from the switch main unit. Even when a drive cam becomes capable of rotation since not less than one of a notch cut-out section and a lock member is broken by forcibly extracting an actuator with rotation of the drive cam locked, a cam curve section of the drive cam and an operating rod are in a normal condition and free of breakage. Accordingly, if the drive cam rotates in a counter-clockwise direction, normally-closed contacts of a contact section adopt an open condition normally, and even in situations where the actuator is withdrawn from the switch main unit with a force equal to or greater than the fracture strength of the safety switch, withdrawal of the actuator from the switch main unit can be detected in a sure and reliable manner.
    • 一种安全开关,即使当包括锁定机构的安全开关处于锁定状态并且试图从开关强制地撤回致动器时,能够以可靠的方式检测致动器从开关主单元的拔出 主机 即使当驱动凸轮变得能够旋转时,由于通过驱动凸轮被锁定的旋转强制地抽出致动器,因此在凹口切口部和锁定部件中的一个不小于其中一个,驱动凸轮的凸轮曲线部分和 操作杆处于正常状态,无破损。 因此,如果驱动凸轮沿逆时针方向旋转,则接触部的常闭触点通常采用打开状态,并且即使在致动器从开关主单元以等于或大于 安全开关的断裂强度,致动器从开关主机的取出可以确定可靠地检测。
    • 7. 发明申请
    • SAFETY SWITCH
    • 安全开关
    • US20120175228A1
    • 2012-07-12
    • US13497030
    • 2010-06-16
    • Norifumi ObataEtsurou KomoriTakeo Yasui
    • Norifumi ObataEtsurou KomoriTakeo Yasui
    • H01H9/20
    • H01H27/002H01H3/42H01H9/286H01H13/60
    • A safety switch is improved by the feature of staying in an open position in the event of breakage of a working rod or breakage or dropout of an operation portion and having a simple structure facilitating size reduction. Even if a rotary shaft is released from a supported state in an operation portion because an operating force of an operation or the number of operations of extracting an actuator from the operation portion exceeds a breakage tolerance, a working rod is permitted to move in an urging direction of a coil spring and is assuredly moved to the operation portion. Therefore, a switch can be assuredly set to an open position and, hence, the safety switch can achieve the safety improvement.
    • 通过在工作棒断裂或操作部分断裂或脱落的情况下保持在打开位置并且具有便于尺寸减小的简单结构的特征来改进安全开关。 即使旋转轴从操作部的支撑状态被释放,因为操作的操作力或从操作部提取致动器的操作次数超过了断裂公差,所以允许工作杆以推动力移动 螺旋弹簧的方向被确定地移动到操作部。 因此,可以将开关确定地设定为打开位置,因此安全开关可以实现安全性的改善。
    • 8. 发明授权
    • Safety switch
    • 安全开关
    • US07633029B2
    • 2009-12-15
    • US11886169
    • 2006-03-03
    • Etsurou KomoriTakao FukuiNorifumi ObataTakeo Yasui
    • Etsurou KomoriTakao FukuiNorifumi ObataTakeo Yasui
    • H01H9/20
    • H01H9/24H01H27/002
    • A safety switch capable of detecting withdrawal of an actuator from a switch main unit in a sure and reliable manner even when the safely switch, including a lock mechanism, is in a locked condition and an attempt is made to forcibly withdraw the actuator from the switch main unit. Even when a drive cam becomes capable of rotation since not less than one of a notch cut-out section and a lock member is broken by forcibly extracting an actuator with rotation of the drive cam locked, a cam curve section of the drive cam and an operating rod are in a normal condition and free of breakage. Accordingly, if the drive cam rotates in a counter-clockwise direction, normally-closed contacts of a contact section adopt an open condition normally, and even in situations where the actuator is withdrawn from the switch main unit with a force equal to or greater than the fracture strength of the safety switch, withdrawal of the actuator from the switch main unit can be detected in a sure and reliable manner.
    • 一种安全开关,即使在包括锁定机构的安全开关处于锁定状态并且试图强制地从开关中撤出致动器的情况下,能够以可靠的方式检测致动器从开关主单元的拔出 主机 即使当驱动凸轮变得能够旋转时,由于通过驱动凸轮被锁定的旋转强制地抽出致动器,因此在凹口切口部和锁定部件中的一个不小于其中一个,驱动凸轮的凸轮曲线部分和 操作杆处于正常状态,无破损。 因此,如果驱动凸轮沿逆时针方向旋转,则接触部的常闭触点通常采用打开状态,并且即使在致动器从开关主单元以等于或大于 安全开关的断裂强度,致动器从开关主机的取出可以确定可靠地检测。