A bending machine for elongated workpieces, comprising a bending tool with a bending head having a bending disc with a bending groove and two slide rails, each having a molding groove and which can be placed laterally against opposing sides of the workpiece. Each slide rail is secured to a support part and laterally supports the workpiece from where the workpiece is fed into the bending groove to a point in front of the bending groove when the slide rail is resting against the workpiece. Each support part is adjustable between a starting position, in which the slide rail does not rest against the workpiece, and a final position, in which the slide rail contacts the workpiece. Upon contacting the workpiece, the other slide rail assumes its starting position. The support parts are attached to a two-arm lever, and a slide piece rests against the workpiece in each lever position.

A bending machine for elongated workpieces, comprising a bending tool with a bending head having a bending disc with a bending groove and two slide rails, each having a molding groove and which can be placed laterally against opposing sides of the workpiece. Each slide rail is secured to a support part and laterally supports the workpiece from where the workpiece is fed into the bending groove to a point in front of the bending groove when the slide rail is resting against the workpiece. Each support part is adjustable between a starting position, in which the slide rail does not rest against the workpiece, and a final position, in which the slide rail contacts the workpiece. Upon contacting the workpiece, the other slide rail assumes its starting position. The support parts are attached to a two-arm lever, and a slide piece rests against the workpiece in each lever position.

Disclosed is a tube bending device which includes at least one bending roller mounted to be rotatably movable relative to a frame and at least one crease erasing member. This device is specific in that it includes a plate designed with: reception surfaces to receive, support and position the crease erasing member which is attached thereto, a unit for fixing to the frame, and guide surfaces pivotably connected for the roller.

A bender tool measuring system includes a conduit bender, a bent piece of conduit, and a measurement apparatus coupled to the conduit. The conduit bender includes a bender head comprising a hook and a handle coupled to and extending from the bender head. The measurement apparatus is configured to project an optical projection onto the handle of the conduit bender, and the location of the optical projection on the length of the handle indicates the position of the bent piece of conduit in relation to the bender head.

A method of bending a conduit is disclosed. An engagement member is displaced via contact with the conduit and engages a switch. A signal is sent to a microprocessor indicative of a characteristic of the conduit to be bent, in response to engagement of the switch. The microprocessor provides a motor control signal to the motor to control a rotation of the shoe, wherein rotation of the shoe bends the conduit.

A method of bending a conduit is disclosed. An engagement member is displaced via contact with the conduit and engages a switch. A signal is sent to a microprocessor indicative of a characteristic of the conduit to be bent, in response to engagement of the switch. The microprocessor provides a motor control signal to the motor to control a rotation of the shoe, wherein rotation of the shoe bends the conduit.

A bender includes a rotatable bending shoe having at least one channel therein configured to receive a workpiece, a seat proximate to the bending shoe which is configured to receive the workpiece thereon, and a sensor provided on the seat which is configured to sense the presence of the workpiece. In some embodiments, the sensor is configured to sense an end of the workpiece.

A bender includes a rotatable bending shoe having at least one channel therein configured to receive a workpiece, a seat proximate to the bending shoe which is configured to receive the workpiece thereon, and a sensor provided on the seat which is configured to sense the presence of the workpiece. In some embodiments, the sensor is configured to sense an end of the workpiece.

A bending wheel of a tube bending apparatus includes a tube-accepting recess, proximal and distal wheel faces, and a rotation recess. The proximal wheel face includes a lever pivot anchor. A cam insert includes a shaft having a tool driving feature. The shaft is configured for selective insertion into the rotation recess. The cam insert includes a camming flange, which includes a lever urging feature. A keeper lever includes a keeper finger rigidly connected to a laterally extending lever arm and extending longitudinally from the proximal wheel face. An anchor end of the lever arm includes an arm pivot feature and a spaced-apart cam following feature configured to interact with the lever urging feature. Rotation of the cam insert causes rotation of the lever urging feature to drive the cam following feature of the keeper lever and pivot the lever arm in the same rotational direction.

A bending wheel of a tube bending apparatus includes a tube-accepting recess, proximal and distal wheel faces, and a rotation recess. The proximal wheel face includes a lever pivot anchor. A cam insert includes a shaft having a tool driving feature. The shaft is configured for selective insertion into the rotation recess. The cam insert includes a camming flange, which includes a lever urging feature. A keeper lever includes a keeper finger rigidly connected to a laterally extending lever arm and extending longitudinally from the proximal wheel face. An anchor end of the lever arm includes an arm pivot feature and a spaced-apart cam following feature configured to interact with the lever urging feature. Rotation of the cam insert causes rotation of the lever urging feature to drive the cam following feature of the keeper lever and pivot the lever arm in the same rotational direction.