Back to results
US 4,403,497 AGranted
Bead bending tool
OwnerFelix V. Matteucciinventor
Life of this patent
Estimating the term…
Abstract
A tool for bending articles having a bead or rolled edge is provided with levers defining handles and arms. Removably mounted on the arms are a male jaw member and a female jaw member having substantially complementary arcuate workfaces and grooves to receive the bead. The workface of the female jaw member preferably has a radius of curvature that gradually increases along the width of the female jaw member. Each jaw member is provided with a ledge which engages with an outobard surface of a slot in each arm to add rigidity to the jaw member to prevent warpage during use.
Claims17
A tool for bending articles having a rolled edge or bead comprising:
- (a) a pair of levers joined by a pivot pin, the levers being adapted for movement in a pivot plane and defining handles on one side of the pivot pin and arms having forward ends on the other side of the pivot pin, the forward end of each arm defining a slot having a bottom, an inboard surface and an outboard surface such that when the tool is placed in a closed position the two outboard surfaces are substantially parallel;
- (b) a male jaw member removably mounted on the forward end of one of the arms and having an arcuate male workface provided with a groove adapted to receive the bead or rolled edge of the article, the male jaw member also being provided with a ledge to be received in the slot and adapted to engage the outboard surface of the slot of the arm the male jaw member is removably mounted on;
- and
- (c) a female jaw member removably mounted on the forward end of the other arm and having an arcuate female workface substantially complementary to the male workface and provided with the groove adapted to receive the bead of the article, the female jaw member being of greater width than the male jaw member, the female jaw member also being provided with a ledge to be received in the slot and to engage the outboard surface of the slot of the arm the female jaw member is removably mounted on;
- said jaw members being retained on their respective arms by screws set substantially perpendicular to the slots and extending generally in the direction of the handles.
2 more elements
A tool for bending articles having a rolled edge or bead comprising:
- (a) a pair of levers joined by a pivot pin, the levers being adapted for movement in a pivot plane and defining handles on one side of the pivot pin and arms having forward ends on other side of the pivot pin, the forward end of each arm defining a jaw member receiving surface having a slot substantially parallel to the jaw member receiving surface, each slot having a bottom, inboard surface and an outboard surface such that when the tool is placed in a closed position the two outboard surfaces are substantially parallel;
- (b) a male jaw member removably mounted on the forward end of one of the arms and having an arcuate male workface provided with a groove adapted to receive the bead or rolled edge of the article, the male jaw member also having a ledge to be received in the slot and engage the outboard surface of the slot of the arm the male jaw member is removably mounted on;
- and
- (c) a female jaw member removably mounted on the forward end of the other arm and having an arcuate female workface with a radius of curvature that increases monotonically along the width of the female jaw member and at least a portion thereof being substantially complementary to the male workface, the female jaw member being of greater width than the male jaw member, the female jaw member also provided with a groove adapted to receive the bead of the article and a ledge to be received in the slot and engage the outboard surface of the slot of the arm the female jaw member is removably mounted on;
- said jaw members being retained on their respective arms by screws set substantially perpendicular to the jaw member engagement surface and extending generally in the direction of the handles.
2 more elements
Dependencies are inferred from the claim text.