Drivable picture frame hanger

A hanger for connection to a wooden frame, comprising a one-piece, stamped metal member having a flat, elongate shank with a longitudinal axis and a head permitting the shank to be driven longitudinally into the wooden frame, said head having a pair of distal shoulders extending laterally of the longitudinal axis of the shank and adapted to engage the surface of the wooden frame when the shank is driven therein, said shank having a proximal tapered tip and edge means providing a series of lands and grooves disposed opposite one another on opposite sides of said axis between the shank tip and said head shoulders, the series of lands and grooves including land surfaces and groove surfaces each disposed parallel to the longitudinal axis of the shank with the land surfaces being at least as long as the groove surfaces, each distally successive land surface being spaced further from said axis than its proximally preceding land surface, each distally successive groove surface being spaced further from the axis of the shank than its proximally preceding groove surface, each groove surface being located about as far inwardly of its proximally preceding land surface as its distally succeeding land surface is located outwardly from said proximally preceding land surface, means providing inclined camming surfaces connecting the distal ends of the groove surfaces and the proximal ends of their succeeding land surfaces, and laterally extending distally facing gripping surfaces located at the distal end of each land surface, whereby the camming surfaces cooperate with the lands and grooves to effect elastic displacement of the wood fibers laterally of the shank as it is driven into the wood for effecting a positive gripping action that enables the hanger to resist disengagement from the wooden frame.

A hanger for connecting an article to a wooden frame, comprising a one-piece, stamped metal member having a flat, elongate shank with a longitudinal axis and a head permitting the shank to be driven longitudinally into the wooden frame, said head having a pair of distal shoulders extending laterally of the longitudinal axis of the shank and adapted to engage the surface of the wooden frame when the shank is driven therein, said shank having a proximal tapered tip and edge means providing a series of lands and grooves disposed opposite one another on opposite sides of said axis between the shank tip and said head shoulders, the series of lands and grooves including land surfaces and groove surfaces each disposed parallel to the longitudinal axis of the shank with the land surfaces being longer than the groove surfaces, each distally successive land surface being spaced further from said axis than its proximally preceding land surface, each distally successive groove surface being spaced further from the axis of the shank than its proximally preceding groove surface, each groove surface being located about as far inwardly of its proximally preceding land surface as its distally succeeding land surface is located outwardly from said proximally preceding land surface, means providing inclined camming surfaces connecting the distal ends of the groove surfaces and the proximal ends of their succeeding land surfaces and disposed at an angle not substantially greater than about 45 degrees with respect to said axis, a distally facing gripping surface located at the distal end of each land surface and disposed substantially perpendicular to its associated land and groove surfaces, whereby the camming surfaces cooperate with the lands and grooves to effect elastic displacement of the wood fibers laterally of the shank as it is driven into the wood for effecting a positive gripping action that enables the hanger to resist disengagement from the wooden frame.