Wireworking – Implements – Stretchers
Patent
1991-04-05
1992-05-12
Larson, Lowell A.
Wireworking
Implements
Stretchers
140 932, 140150, B21F 0902
Patent
active
051118530
ABSTRACT:
A banding tool for tightening a band about a woven metal braid portion of an electrical cable about a tubular termination sleeve portion of an electrical connector. The tool comprises a band tension limit which can be adjusted while the tool is coupled to a test device, such as a strain gauge. The tool includes a shuttle mechanism for incrementally advancing the band through the tool during a forward stroke. The shuttle mechanism is mechanically coupled to a pivotally mounted handle by way of an overcenter toggle mechanism. The overcenter toggle mechanism is coupled to a spring tensioning assembly, which includes a plurality of spring members, such as Belleville washers, disposed near the rear of the tool. An adjustment screw on the rear cover portion of the tool allows the spring tension of the spring members to be adjusted. Once the band tension limit is reached, the overcenter toggle mechanism locks the handle in its closed position, thereby preventing further movement of the shuttle mechanism. A lever mechanism on the tool is actuated to bend the band at approximately a 90.degree. angle with respect to the buckle to maintain the tension in the band. The lever is operated in a reverse direction to shear the extra band at the termination.
REFERENCES:
patent: 4410019 (1983-10-01), Suzuki
patent: 4696327 (1987-09-01), Wolcott
patent: 4928738 (1990-05-01), Marelin et al.
patent: 5000232 (1991-03-01), Wolcott
Beusse James H.
Daniels Manufacturing Corporation
Larson Lowell A.
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