Handle operating mechanism for an electric circuit breaker
AssigneeTokyo Shibaura Denki Kabushiki Kaisha
InventorsMasatomi Takagi, Takanori Hagawa, Seietsu Takamatsu, Isao Ookoshi
Life of this patent
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Abstract
A handle operating mechanism is provided to actuate an electric circuit breaker having a release lever and to interlock the electric circuit breaker and the door of a casing accommodating the circuit breaker. A manually operable handle is rotatably mounted on a case and is integrally coupled with a cam, disposed within the case, having a pin and a trapped portion. An actuating member which is engaged with the pin of the cam is linearly moved along a guide rod in response to rotation of the handle. One end of the guide rod contacts and slides along the circumference of the cam, the other end of the guide rod extending from the case to interlock with the door of the casing.
Claims14
A handle operating mechanism in combination with an electric circuit breaker having an operating lever which interlocks the electric circuit breaker and a door of a casing accommodating the circuit breaker, said combination comprising:
- a case disposed within the casing;
- a release lever for the circuit breaker mounted within the case;
- a manually operable handle rotatably mounted on a surface of the case for predetermined operating positions including an ON position and TRIP position;
- means connected to the operable handle for actuating the release lever for the circuit breaker upon movement of the operable handle;
- and
- means for engaging the case with the door of the casing so as to interlock the case and the door when the operable handle is placed at the ON and TRIP positions;
- said actuating means further comprising a sliding member engaging the engaging means so as to slide along the engaging means in response to movement of the operable handle.
A handle operating mechanism in combination with an electric circuit breaker having an operating lever which interlocks the electric circuit breaker and a door of a casing accommodating the circuit breaker, said combination comprising:
- a case disposed within the casing;
- a release lever for the circuit breaker mounted case;
- a manually operable handle rotatably mounted on a surface of the case for predetermined operating positions including an ON position and TRIP position;
- means connected to the operable handle for actuating the release lever for the circuit breaker upon movement of the operable handle;
- and
- means for engaging the case with the door of the casing so as to interlock the case and the door when the handle is placed at the ON or TRIP positions, said actuating means lockably engaging the engaging means when the door of the casing is opened,
- said actuating means further comprising a sliding member engaging the engaging means so as to slide along the engaging means in response to movement of the operable handle.
A handle operating mechanism which actuates an electric circuit breaker having an operating lever which interlocks the electric circuit breaker and a door of a casing accommodating the circuit breaker, said mechanism comprising:
- a case for disposition within the casing;
- a release lever for the circuit breaker mounted within the case;
- a manually operable handle rotatably mounted on a surface of the case for predetermined operating positions including an ON position and TRIP position;
- means connected to the operable handle for actuating the release lever for the circuit breaker upon movement of the operable handle;
- and
- means for engaging the case with the door of the casing so as to interlock the case and the door when the operable handle is placed at the ON and TRIP positions,
- said actuating means comprising an operating axle integrally coupled with the manually operable handle, a cam having a trapped portion integrally coupled with the operating axle, and a sliding member for operating the release lever for the circuit breaker in response to movement of the cam.
A handle operating mehcanism in combination with an electric circuit breaker having an operating lever which interlocks the electric circuit breaker and a door of a casing accommodating the circuit breaker, said combination comprising:
- a case disposed within the casing;
- a release lever for the circuit breaker mounted within the case;
- a manualy operable handle rotatably mounted on a surface of the case for predetermined operating positions including an ON position and TRIP position;
- means connected to the operable handle for actuating the release lever for the circuit breaker upon movement of the operable handle;
- and
- means for engaging the case with the door of the casing so as to interlock the case and the door when the handle is placed at the ON or TRIP positions, said actuating means lockably engaging the engaging means when the door of the casing is opened,
- said actuating means comprising an operating axle integrally coupled with the manually operable handle, a cam having a trapped portion integrally coupled with the operating axle, and a sliding member for operating the release lever for the circuit breaker in response to movement of the cam.
Dependencies are inferred from the claim text.