Powered clamp application tool
View Patent ↗A portable electrically powered clamp application tool has a bench mounting kit with a foot pedal control for bench work. The tool has two grippers which enable a powered clamp cutting operation, wherein the only manual step is bending the tightened clamp prior to triggering the cutter arm. A gripper element is non-rotational and has teeth. It locates the material being gripped in a repeatable manner in spite of oil or other lubricants on the clamp. After the cutting operation an automatic release assembly releases the clamp. A manual lever(s) can also release a tail of a clamp.
1. A clamp applicator comprising:
a housing having a motor with an ON/OFF and a FORWARD/REVERSE switch;
a stationary first gripper located near a band entry port in the housing;
a second gripper having a linkage to the motor to move forward by means of a mobile gripper housing toward the entry port and backward;
a cutter in the housing for cutting a tightened clamp;
wherein a clamp tightening mode of operation powers the second gripper backward while gripping a segment of a clamp, thereby tightening the clamp;
wherein a clamp cutting mode of operation powers the second gripper forward, thereby releasing its grip on the clamp segment and activating the cutter to cut the clamp segment;
wherein the cutter further comprises a pivot mount in the housing, and the second gripper has a mechanical interface with one end of the cutter to pivot a cutting end of the cutter into contact with the segment of the clamp during the cutting mode of operation; and
wherein the mobile gripper housing further comprises a release lever actuator which in the clamp cutting mode contacts a pivotable stationary gripper release lever, thereby releasing the stationary first gripper from the segment of the clamp after the cutting mode operation.
2. The apparatus of claim 1 , wherein the first gripper has a jaw that prevents the clamp segment from moving forward during the cutting mode of operation.
3. The apparatus of claim 2 , wherein the first gripper jaw travels in an angled slot so as to allow a proper slack in the clamp segment during the cutting mode of operation.
4. The apparatus of claim 1 , wherein the linkage further comprises a gear assembly and a torque adjustment assembly for the second gripper, thereby providing a variable tensioning capability to the clamp applicator for accommodating a plurality of clamp widths.
5. The apparatus of claim 4 , wherein the housing further comprises a screw drive for the second gripper.
6. The apparatus of claim 1 , wherein the motor is a DC type, the housing has a battery pack, and the housing has a DC input receptacle.
7. The apparatus of claim 6 , further comprising a detachable bench mounting base for the housing.
8. The apparatus of claim 7 further comprising and AC/DC converter and a foot pedal controller for the motor, wherein both speed and direction are controlled by the foot.
9. The apparatus of claim 1 further comprising a free end clamp adapter having a free end port on the housing and located forward of the entry port.
10. The apparatus of claim 1 , further comprising a manual release lever for each of the first and second gripper.