초록 ▼

A wedge clamp activator and circuit card extractor is provided for selective tightening and loosening of a wedge clamp on an electrical apparatus. The actuator includes a shaft for rotating the screw of the wedge clamp. The shaft is provided with pivot pins. A lever mounted to the pivot pins enables

A wedge clamp activator and circuit card extractor is provided for selective tightening and loosening of a wedge clamp on an electrical apparatus. The actuator includes a shaft for rotating the screw of the wedge clamp. The shaft is provided with pivot pins. A lever mounted to the pivot pins enables rotation of the actuator and the wedge clamp screw to which the actuator is attached. The lever includes a fulcrum dimensioned for engagement with a rigid support on the electrical apparatus. The lever may be translated into a position where the fulcrum engages the support. The lever may then be rotated about the fulcrum for extracting the circuit to which the wedge clamp is mounted from the electrical apparatus.

대표청구항 ▼

A wedge clamp activator and circuit card extractor for an electrical apparatus, the apparatus having a circuit board, a chassis mounted to the circuit board, the chassis having opposed card receiving channels, a socket mounted to the circuit board intermediate the channels, a circuit board having si

A wedge clamp activator and circuit card extractor for an electrical apparatus, the apparatus having a circuit board, a chassis mounted to the circuit board, the chassis having opposed card receiving channels, a socket mounted to the circuit board intermediate the channels, a circuit board having sides slidably receivable in the channels and having an edge region selectively engageable with the socket, wedge clamps mounted to the respective sides of the circuit card and being slidably receivable in the respective channel, each of the wedge clamps including a plurality of wedges and elongate threaded means having a first end and an opposed second end which is threadedly engaged with one of the wedges, the threaded means being rotatable about a rotational axis for selectively clamping the wedge clamp and the circuit card in one of the channels of the chassis, said wedge clamp activator and circuit card extractor comprising: a level having an actuator end and an opposed fulcrum end, portions of said lever intermediate said ends being permanently pivotably connected to the first end of the elongate threaded means for rotatably driving the elongate threaded means about the rotational axis and for pivoting movement about a pivot axis orthogonal to the rotational axis of the elongated threaded means, said fulcrum end being spaced from the pivot axis a sufficient distance such that said fulcrum end selectively engages with the chassis when said lever is pivoted about said pivot axis and urges the circuit card from the socket.