Double wedgelock clamp

A device for retaining a tab, formed to extend from a module or a circuit board, within an elongate slot formed in a wall structure of a chassis, the device comprising:

• at least a pair of first wedge elements each having an angled first wedge surface;
• elongate wedge means comprising a pair of inner segments and a pair of lower segments, each of said inner segments having a first angled complementary wedge surface formed on one end for cooperating with a corresponding one of said first wedge surfaces, a second angled complementary wedge surface formed on the opposite end of said inner segment and a third angled complementary wedge surface formed on an end of each of said lower segments for cooperating with said second angled complementary wedge surface of said inner segment;
• a yoke attached to each upper segment end opposite said wedge surface for coupling said wedge means together;
• an activating screw disposed on said yoke for producing downward movement on said wedge means for effecting movement of said upper and inner segments relative to one another and to said first wedge elements;
• and
• elastomeric means disposed to couple said inner segments and said lower segments to one another.

A lock for fastening a circuit board in position within an elongate slot formed in a wall member of a chassis, the lock comprising:

• first and second clamps dimensioned to be adapted to be received by said slot, said first and second clamps each including at least a pair of spaced apart, elongate segments configured to move in a direction transverse said elongate dimension of each;
• a yoke for coupling said first and second clamps together at one end of said clamps;
• and
• an activating means coupled to the yoke for imposing a force to cause each of the segments of said first and second clamps to move in opposite directions, transverse said elongate dimension of each elongate segment, to thereby reduce the spaced apart relation of the elongate segments.

A device for retaining a circuit board in a rectangular slot defining a pair of spaced, confronting slot wall surfaces, the device comprising:

• a first pair of wedge elements, each having a wedge surface;
• a second pair of elongate wedge elements, each having a complementary wedge surface at one end for cooperating with a corresponding one of the wedge surface of the first pair of wedge elements;
• yoke means for holding the first and second pair of wedge elements together with the first wedge elements spaced and generally parallel to the second wedge elements;
• and
• actuation means coupled to the yoke means for moving said complementary wedge surfaces with respect to the wedge surfaces.

A device for retaining a circuit board in a rectangular slot, the device comprising:

• a first plurality of elongate elements oriented end-to-end and having confronting and complementary wedge surfaces for cooperating with corresponding confronting wedge surfaces, a second plurality of elongate elements oriented end-to-end and having confronting and complementary wedge surfaces for cooperating with corresponding confronting wedge surfaces, the first and second pluralities of elongate members being spaced to define a circuit board-receiving space therebetween of a first dimension;
• means coupling an end one of the first and the second pluralities of elongate elements to the other;
• and
• actuation means mounted to the coupling means for moving said complementary wedge surfaces to change the first dimension to a second dimension.