Sealed contact device and operating mechanism

A sealed contact device comprising;

• a sealed container defining therein a gas-tight space together with a bellows for housing therein contacts and sealing therein a gas mainly consisting at least of hydrogen;
• a pair of fixed electrodes respectively provided with a fixed contact;
• a movable contactor provided with a pair of movable contacts respectively engaging with and separating from each of said fixed contacts;
• a contact pressure spring biasing said movable contactor in a direction of engaging said movable contacts with said fixed contacts;
• a resetting spring biasing said movable contactor in a direction of separating said movable contacts from said fixed contacts;
• a receptacle provided on one side surface with a recess for receiving said resetting spring and disposed between said pair of fixed electrodes;
• and
• a movable shaft projected at an end out of said sealed container for being driven and coupled to said movable contactor;
• wherein gaps are provided between said fixed electrodes and said receptacle.

A sealed contact device comprising;

• a sealed container defining therein a gas-tight space together with a bellows for housing therein contacts and sealing therein a gas mainly consisting at least of hydrogen;
• a pair of fixed electrodes respectively provided with a fixed contact;
• a movable contactor provided on one side surface with a pair of movable contacts respectively engaging with and separating from each of said fixed contacts;
• a contact pressure spring biasing said movable contactor in a direction of engaging said movable contacts with said fixed contacts;
• a resetting spring biasing said movable contactor in a direction of separating said movable contacts from said fixed contacts;
• a movable shaft projected at one end out of said sealed container for being driven and coupled to said movable contactor;
• and
• a regulating member fixed to said movable shaft for regulating the position of the movable contactor in said direction of engaging said movable contacts with said fixed contacts when both contacts are separated;
• wherein said movable contactor is provided on one side surface with a recess for receiving said regulating member at least in substantially flush relationship to said surface.

A sealed contact device comprising;

• a sealed contact section including a sealed container defining therein a gas-tight space together with a bellows for housing therein contacts and sealing therein a gas mainly consisting at least of hydrogen, a fixed electrode provided at one end with a fixed contact and having at the other end a terminal part integrally formed, a movable contactor provided with a movable contact engaged with and separated from said fixed contact, a contact pressure spring biasing said movable contactor in a direction of engaging said movable contact with said fixed contact, a resetting spring biasing said movable contactor in a direction of separating said movable contact from said fixed contact and a movable shaft projected at an end out of said sealed container and coupled to said movable contactor;
• a driving member for driving said projected one end of said movable shaft to open and close said contacts;
• and
• a housing for housing therein said sealed contact section and driving member and provided with an adhering part for pouring therein said adhering element;
• wherein said housing is provided with a circumferential projection externally enclosing said adhering part, and with an engaging part having an elasticity and engaged with said projection when said sealed contact section is housed in the housing.

A sealed contact device comprising:

• a sealed container defining therein a gas-tight space together with a bellows for housing therein contacts and sealing therein a gas mainly consisting at least of hydrogen;
• a pair of fixed electrodes respectively provided with a fixed contact;
• a movable contactor provided with a pair of movable contacts respectively engaged with and separated from each of said fixed contacts;
• a contact pressure spring biasing said movable contactor in a direction of engaging said movable contacts with said fixed contacts;
• a resetting spring biasing said movable contacts in a direction of separating said movable contacts from said fixed contacts;
• a movable shaft projected at one end out of said sealed container for being driven and coupled to said movable contactor;
• and
• a housing for housing therein at least said pair of fixed electrodes, said movable contactor, said contact pressure spring, said resetting spring and said movable shaft;
• wherein the device further comprises a locking means to be locked to said housing in a state of occupying a movable space defined for said movable shaft when displaced in a direction by a predetermined extent and including a resetting means for biasing said locking means to reset the locking means in a direction reverse to said displaced direction.