Wall anchor
AssigneeLee-Rowan Company
InventorCharles F. Camilleri
Life of this patent
Estimating the term…
Abstract
A wall anchor having a socket and a drive pin. A passage within the socket receives the drive pin. Fingers on the leading end of the socket have walls in the path of the pin. The fingers pivot into contact with the back surface of the wall by a cam action of the drive pin against the fingers and slightly spaced from a web in front of the fingers. Ribs on the inner wall of the passage grip the drive pin in a ready position. A head on the socket and barbs on the outer wall hold the socket in another part. The fingers have generally flat faces that are barbed to make maximum contact with the wall surface. The drive pin has a shank at its lead portion and helical threads at its trailing portion with a head on the trailing end. The drive pin can be driven by a hammer through the socket and can be withdrawn by the use of a screwdriver.
Claims23
A wall anchor comprising a molded plastic socket and a pin, the socket comprising a body section having a lead end and a trailing end, a passage through the body section for receiving the pin, a pair of elongated fingers integral with the body section and extending from the lead end of the body section, the fingers having thin wall portions joining them to the body section, the thin wall portions being bendable to act as hinges allowing the fingers to swing between normally closed positions in which the outer extremes of the fingers allow the fingers to fit within a predetermined hole in a building wall and spread positions in which the fingers are pivoted laterally outwardly relative to the body section and will not fit through the hole, the fingers being sufficiently long to enable them to be pivoted by a person's fingers, the socket being molded to position the fingers in the normally closed positions to allow the socket to be inserted into the hole in the wall without requiring an external force squeezing the fingers together, the fingers having transverse walls extending across transverse portions of the passage in the path of the pin whereby projection of the pin beyond the leading end of the body section presses the lead end of the pin against the transverse walls of the fingers in a cam action to pivot the fingers to the spread positions, and a plurality of radially inwardly extending longitudinal ribs on the wall of the passage to grip the pin, the ribs being shaped to maintain pressure in a radial direction against the pin upon insertion and extension of the pin in the passage whereby the socket will support and retain the pin prior to installation of the wall anchor, the combination of the ribs retaining the pin and the fingers normally occupying closed positions enabling the wall anchor including the socket and the pin to be inserted in the hole in the wall by one hand.
A wall anchor comprising a pin and socket wherein the socket includes a body section with a leading end and a trailing end, a pair of fingers hinged to the trailing end and being pivotable relative to the body section, an annular wall surface defining a passage through the body section for receiving the pin, the fingers having transverse walls extending inwardly from the annular inner wall surface in the path of the pin and cooperable with the pin for pivoting the fingers to laterally extending positions, and a web in the passage between the walls of the fingers and the trailing end, the web being independent of the fingers and joined to the socket and extending inwardly from the inner wall surface for interception by the pin before the pin reaches the transverse walls.
A wall anchor for mounting a part to a wall wherein the part has a hole in it for receiving the wall anchor, comprising a pin and a plastic socket, the socket having a body section and a finger section, a passage through the body section for receiving the pin, the finger section comprising a pair of fingers, short bendable sections for connecting the respective fingers to a first end of the body section and allowing them to pivot about the body section, the fingers having walls in the path of the passage to pivot the fingers laterally relative to the body section upon engagement between the walls and the pin, a head on a second end of the body section, a retainer means projecting outwardly from and located circumferentially about the body section, the retainer means being spaced from the head and cooperating with the head to define a circumferential retainer section therebetween, the diameter of the retainer section being smaller than the diameter of the hole in the part, the diameter of the head and the circumscribed diameter of the retainer means being greater than the diameter of the hole in the part, whereby the socket can be snapped within the hole in the part and the part can be held in place within the retainer section by the head on one side of the part and the retainer means on the other side of the part.
Dependencies are inferred from the claim text.