Pivoting conduit bender
AssigneeGreenlee Textron Inc.
InventorsJeffrey J. Plummer, Sean A. Daugherty
Life of this patent
Estimating the term…
Abstract
A conduit bender having a unitary frame is mounted to a wheeled base which provides for transportation of the bender. A braking assembly provides for simplified locking of the wheels to secure the bender in a location. The bender is mounted to the base through a pivoting assembly which allows for bending of conduit in either a horizontal or vertical plane. A circuit is provided for controlling the bending operation. An auto-sensing portion of the circuit receives information regarding the characteristics of the conduit to be bent upon placement of the conduit in the bender. A feed back portion of the circuit is used to provide a precise bending operation.
Claims19
A conduit bender for bending a conduit comprising:
- a frame having a first side and a second side;
- wherein said shoe shaft extends outwardly from said first side;
- a shoe mounted on said shoe shaft, said shoe capable of receiving the conduit to be bent;
- a roller assembly support shaft mounted to said frame, said roller assembly support shaft extending outwardly from said first side of said frame;
- a roller assembly mounted on said roller assembly support shaft, said roller assembly supporting said conduit to be bent;
- a positioning sleeve having first and second opposite ends, said positioning sleeve having a first portion mounted within said roller assembly support shaft and a second portion extending therefrom outwardly, said second portion of said positioning sleeve further extending outwardly from the second side of the frame;
- a positioning ring mounted to said positioning sleeve such that said positioning ring is proximate to said second side of the frame, and wherein a rotational position of said positioning sleeve is fixed relative to said positioning ring;
- an eccentric bushing mounted on said positioning sleeve;
- and
- wherein rotation of said positioning ring and said positioning sleeve alters a dimension between said positioning sleeve and said shoe shaft.
A conduit bender for bending a conduit comprising:
- a frame;
- a shoe shaft mounted on said frame;
- a shoe mounted on said shoe shaft, said shoe capable of receiving the conduit to be bent, said shoe having a plurality of channels provided thereon;
- a roller assembly support shaft mounted to said frame;
- a roller assembly mounted on said roller assembly support shaft, said roller assembly supporting said conduit to be bent;
- said roller assembly support shaft and said shoe shaft are spaced apart from each other by a dimension which is fixed;
- a lever support shaft extending from said frame;
- a plurality of levers rotatable mounted to said lever support shaft and associated with predetermined ones of said channels, and wherein an associated conduit contacts and rotates one of said levers relative to said lever support shaft when the associated conduit is seated in one of the channels.
Dependencies are inferred from the claim text.