Reinforced plastic yoke
AssigneeEdward W. Daniel Company
InventorsKenneth S. Kupcak, Rudolph F. Piecuch
Life of this patent
Estimating the term…
Abstract
Reinforced plastic yoke includes a collar portion and longitudinally extending leg portions, with a metal strip reinforcing insert having a pair of longitudinally extending legs and a web embedded respectively in the legs and collar of the yoke. The legs of the metal reinforcing strip at their distal ends each include openings concentric with clevis pin openings in the legs of the yoke and the web includes an opening which accommodates a longitudinally extending bore in the collar portion. Additionally, an internally threaded metal insert fitting may be provided in the yoke collar portion extending axially through the web opening in the metal strip reinforcing insert, with mechanical locks to prevent relative movement between the fitting, collar portion, and metal insert.
Claims23
A reinforced plastic yoke comprising a plastic body having a collar portion at one end and a pair of spaced longitudinally extending portions integral with said collar portion, one piece metal insert means embedded in said collar portion and longitudinally extending portions for reinforcing the same, said insert means having two spaced, longitudinally extending legs embedded respectively in said longitudinally extending portions of said body and a web connecting said legs embedded in said collar portion of said body, mechanical lock means for interlocking said insert means within said plastic body, and at least one embossment in said legs thus to provide a mechanical lock between said insert means and said body.
A reinforced plastic yoke comprising a plastic body having a collar portion at one end and a pair of spaced longitudinally extending portions integral with said collar portion, one piece metal insert means embedded in said collar portion and longitudinally extending portions for reinforcing the same, said insert means having two spaced, longitudinally extending legs embedded respectively in said longitudinally extending portions of said body and a web connecting said legs embedded in said collar portion of said body, a longitudinally extending opening in said web, and insert fitting means embedded in said collar portion and extending through said opening in said web.
A reinforced plastic yoke comprising a plastic body having a collar portion at one end and a pair of spaced longitudinally extending portions integral with said collar portion, one piece metal insert means embedded in said collar portion and longitudinally extending portions for reinforcing the same, said insert means having two spaced, longitudinally extending legs embedded respectively in said longitudinally extending portions of said body and a web connecting said legs embedded in said collar portion of said body, and mechanical lock means for interlocking said insert means within said plastic body, said web being noncircular in shape thus mechanically to prevent rotation of the same relative to said collar portion of said body, said legs extending substantially perpendicular from opposite sides of said web, said body being formed by molding the same in a mold, and portions of said web normal to said opposite sides of said web being adapted to contact the walls of the mold cavity to position the web therein when the insert means is placed in the mold cavity prior to molding said plastic body.
A reinforced plastic yoke comprising a plastic body having a collar portion at one end and a pair of spaced longitudinally extending portions integral with said collar portion, and one piece metal insert means embedded in said collar portion and longitudinally extending portions for reinforcing the same, said insert means having two spaced, longitudinally extending legs embedded respectively in said longitudinally extending portions of said body and a web connecting said legs embedded in said collar portion of said body, said body being formed by molding the same in a mold, said insert means including spacer means to facilitate positioning of said insert means in the mold prior to molding said body, said spacer means including a plurality of embossments in said legs adapted to contact the walls of the mold cavity to position the legs therein when the insert means is placed in the mold cavity, and said embossments also providing a mechanical lock between said insert means and said body.
A reinforced plastic yoke comprising a plastic body having a collar portion at one end and a pair of spaced longitudinally extending portions integral with said collar portions, and one piece metal insert means embedded in said collar portion and longitudinally extending portions for reinforcing the same, said insert means including an internally threaded, longitudinally extending insert fitting in said collar portion of said body, and said insert fitting including mechanical lock means for preventing relative longitudinal and rotational movement between said insert means and collar portion of said body.
A reinforced plastic yoke comprising a plastic body having a collar portion at one end and a pair of spaced longitudinally extending portions integral with said collar portion, and one piece metal insert means embedded in said collar portion and longitudinally extending portions for reinforcing the same, said insert means having two spaced, longitudinally extending legs embedded respectively in said longitudinally extending portions of said body and a web connecting said legs embedded in said collar portion of said body, said legs including at least one opening through which extends a portion of said plastic body thus to provide a mechanical lock between said insert means and said body against pull out.
A reinforced plastic yoke comprising a plastic body having a collar portion at one end and a pair of spaced longitudinally extending portions integral with said collar portion, and one piece metal insert means embedded in said collar portion and longitudinally extending portions for reinforcing the same, said insert means having two spaced, longitudinally extending legs embedded respectively in said longitudinally extending portions of said body and a web connecting said legs embedded in said collar portion of said body, said longitudinally extending portions at the distal ends thereof having transversely aligned pin receiving bores therein, and said legs at the distal ends thereof having bores concentric with said pin receiving bores.
A reinforced plastic yoke comprising a plastic body having a collar portion at one end and a pair of spaced longitudinally extending portions integral with said collar portion, and one piece metal insert means embedded in said collar portion and longitudinally extending portions for reinforcing the same, said insert means having two spaced, longitudinally extending legs embedded respectively in said longitudinally extending portions of said body and a web connecting said legs embedded in said collar portion of said body, said collar portion having a longitudinally extending bore, and said web of said insert means having a longitudinally extending opening concentric with said longitudinally extending bore.
A reinforced plastic yoke for coupling opposed load members for transmission of axial tensile loads, said yoke comprising a plastic body having a collar portion at one end and a pair of spaced longitudinally extending portions integral with said collar portion, said collar portion having means for connecting same to one load member and said longitudinally extending portions having means for connecting same to the other load member, and one piece metal insert means embedded in said collar portion and longitudinally extending portions for reinforcing same, said insert means extending between said means for connecting to increase the strength of said plastic body along the effective load bearing length thereof.
Dependencies are inferred from the claim text.