Stake clips and concrete forming systems incorporating the same

A stake clip comprising:

• a form board insertion plate comprising a form facing face, an opposite stake facing face, and a locking arm stop that protrudes from the stake facing face;
• a compression arm comprising a handling face, an opposite stake anchoring face, and a locking slot extending through the compression arm at a distal portion of the compression arm, wherein the stake anchoring face comprises a plurality of stake anchoring positions (522/524/526) extending into the stake anchoring face and a plurality of protrusions corresponding to the plurality of stake anchoring positions, each of the plurality of stake anchoring positions comprising a distinct radius of curvature;
• a compression arm joint connecting a proximal portion of the compression arm to the form board insertion plate, the compression arm configured to pivot about the compression arm joint through a locking slot travel arc, and wherein the radius of curvature of the stake anchoring positions increases as a function of distance from the compression arm joint measured along the compression arm;
• a locking arm comprising a locking face, an opposite bumper face, a bumper protruding from the bumper face, a locking tip, and a plurality of locking projections (542) extending from the locking face;
• and
• a locking arm joint connecting a proximal portion of the locking arm to the form board insertion plate, the locking arm configured to pivot about the locking arm joint through a locking tip travel arc, the locking arm stop defining a maximum pivot angle of the locking arm through the locking tip travel arc, and wherein:
• the locking arm joint and the compression arm joint are spaced apart from each other along a longitudinal dimension of the form board insertion plate,
• the locking slot travel arc of the compression arm and the locking tip travel arc of the locking arm overlap at a clip engagement point to enable the locking tip and a portion of the locking arm comprising the locking projections to pass through the locking slot of the compression arm,
• the locking arm is spring-biased in a direction of the locking projections along a portion of the locking tip travel arc that comprises the clip engagement point, such that the locking slot is configured to catch on the plurality of locking projections as the compression arm passes through the locking slot,
• the bumper is configured to contact the locking arm stop at the maximum pivot angle of the locking arm, and
• the bumper is configured to provide an additional bias on the locking arm in the direction of the locking projections when the locking arm stop contacts the bumper.

A stake clip comprising:

• a form board insertion plate;
• a compression arm comprising at least one stake anchoring position and a locking slot extending through the compression arm;
• a compression arm joint connecting the compression arm to the form board insertion plate, the compression arm configured to pivot about the compression arm joint through a locking slot travel arc;
• a locking arm comprising a locking tip and a plurality of locking projections;
• and
• a locking arm joint connecting the locking arm to the form board insertion plate, the locking arm configured to pivot about the locking arm joint through a locking tip travel arc, and wherein:
• the locking slot travel arc of the compression arm and the locking tip travel arc of the locking arm overlap at a clip engagement point, and
• the locking arm is spring-biased in a direction of the locking projections, such that the locking slot is configured to catch on the plurality of locking projections as the locking arm passes through the locking slot.