Wireworking – Applying wire – Binder tightening and joining implements
Patent
1992-07-13
1993-06-08
Larson, Lowell A.
Wireworking
Applying wire
Binder tightening and joining implements
140 57, B21F 902
Patent
active
052170497
ABSTRACT:
A portable, hand operated power tool for automatically tying intersecting rods, preferably rebar. An electric drive motor system selectively energizes a transmission disposed within a protective casing. A wire feed mechanism and a spindle barrel assembly which twists the wire are controlled by separate positive drive actuators. A jaw assembly projects outwardly from the casing to encircle the crossed rebar sections, and wire is fed around guide channels defined within the jaws. Wire is transported by the installer in a belt mounted reel. The actuators are controlled by retractable levers operated by electromagnets and normally engage suitable slots within the actuators to prevent them from transmitting rotary motion. When the levers are withdrawn, rotary motion will be transmitted to feed or twist wire. The rigid jaw assembly comprises a pair of spaced apart and fixed jaw members integral with a tubular base coaxially surrounding the rotatable spindle. A looping jaw, controlled by a solenoid, is pivoted to the lower fixed jaws. The jaw members and the looping jaw comprise internal guide grooves which are aligned in operation to direct wire in a circular path about the rebar. The spindle barrel assembly includes a pair of cooperating, and aligned shear disks through which wire passes for cutting. A spindle nose cone comprises an adjustable tension control cone, a pair of twist guides on opposite sides of the cone, and wire guide canals are defined in its face.
REFERENCES:
patent: 3026915 (1962-03-01), Jones et al.
patent: 3169559 (1965-02-01), Working
patent: 3211187 (1965-10-01), Paule et al.
patent: 3323558 (1967-06-01), Collins
patent: 3391715 (1968-07-01), Thompson
patent: 3428096 (1969-02-01), Krylov et al.
patent: 3587668 (1971-06-01), Ward
patent: 3590885 (1971-07-01), Ward
patent: 3593759 (1971-07-01), Wooge
patent: 3633633 (1972-01-01), Countryman
patent: 3880204 (1975-04-01), Sarff et al.
patent: 4117872 (1978-10-01), Gott et al.
patent: 4141389 (1979-02-01), Gottel
patent: 4177842 (1979-11-01), Dilley
patent: 4354535 (1982-10-01), Powell et al.
patent: 4362192 (1982-12-01), Furlong et al.
patent: 4498506 (1985-02-01), Moody et al.
patent: 4559977 (1985-12-01), Dilley
patent: 4577554 (1986-03-01), Brouse
patent: 4655264 (1987-04-01), Dilley
patent: 4685493 (1987-08-01), Yuguchi
patent: 4762154 (1988-08-01), Cianciullo
patent: 4834148 (1989-05-01), Muguruma et al.
patent: 4941515 (1990-07-01), Vrenning
patent: 4947902 (1990-08-01), Lehmann et al.
patent: 4953598 (1990-09-01), McCavey
Carver Stephen D.
Gateway Construction Company, Inc.
Larson Lowell A.
Ward Jeffrey S.
LandOfFree
Power rebar typing tool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power rebar typing tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power rebar typing tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1927994