Bender Shoe Ratchet

An apparatus comprising:

• a mounting plate;
• a bender shoe pivot mounted on the mounting plate;
• a bender shoe mounted on the bender shoe pivot, the bender shoe comprising;
• a ratcheting gear disposed in a ratcheting gear opening in the bender shoe,
• a first channel formed in the bender shoe, and
• a second channel formed in the bender shoe;
• a handle pivot;
• and
• a handle assembly mounted on the handle pivot, the handle assembly comprising;
• a handle,
• a lever attachment attached to the handle,
• a lever disposed in the lever attachment, and
• a ratchet pawl mounted to ratchet pawl pivot and having a ratchet pawl tip, the ratchet pawl configured to engage a plurality of ratchet teeth on the ratcheting gear, wherein a distance between the handle pivot and the ratchet pawl pivot and a distance between the bender shoe pivot and the ratchet pawl tip, for a given length of the lever, provide an overall mechanical advantage for the apparatus of greater than 4:1.

An apparatus comprising:

• a mounting plate;
• a bender shoe pivot mounted on the mounting plate;
• a bender shoe mounted on the bender shoe pivot, the bender shoe comprising,
• a plurality of bender shoe plates, wherein the plurality of bender shoe plates comprise a first bender shoe plate, a second bender shoe plate, and a third bender shoe plate wherein a first side of the first bender shoe plate is adjacent to a first side of the second bender shoe plate and the third bender shoe plate is adjacent to a second side of the second bender shoe plate,
• a ratcheting gear disposed in a ratcheting gear opening in a second side of the first bender shoe plate,
• a first channel formed by a first surface on the first bender shoe plate and a second surface on the second bender shoe plate, and
• a second channel formed by a third surface on the second bender shoe plate and a fourth surface on the third bender shoe plate;
• a first bender shoe plate opening disposed in the first bender shoe plate;
• a second bender shoe plate opening disposed in the second bender shoe plate;
• a third bender shoe plate opening disposed in the third bender shoe plate, wherein the first bender shoe plate opening, the second bender shoe plate opening, and the third bender shoe plate opening are concentric wherein a bender shoe axis passing through the centers of the first bender shoe plate opening, the second bender shoe plate opening, and the third bender shoe plate opening;
• a first radius measured from the bottom of the first channel to the bender shoe axis;
• a second radius measured from a bottom of the second channel to the bender shoe axis;
• a third radius, wherein the ratcheting gear opening comprises an arc-shaped interior surface adjacent to the ratcheting gear, the third radius measured from the arc-shaped interior surface to the bender shoe axis, wherein the first radius is greater than the second radius and the third radius is less than the first radius and greater than the second radius;
• a handle pivot;
• and
• a handle assembly mounted on the handle pivot.