Chain link plate with high strength

Abstract

A chain link plate includes an elliptical plate body having opposite first and second surfaces, and two mounting holes spaced apart from each other in a longitudinal direction of the plate body and extending from the first surface to the second surface. The plate body has a central longitudinal line that passes through centers of the mounting holes, and two transverse lines that pass respectively through the centers of the mounting holes and that are perpendicular to the central longitudinal line. The plate body has an intermediate juncture portion defined between the transverse lines, and opposite end portions integrally and respectively connected to opposite ends of the intermediate juncture portion. The intermediate juncture portion has a largest width greater than that of each of the end portions.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiment with reference to the accompanying drawings, of which:

FIG. 1 is an exploded perspective view of a chain unit illustrating the connection between the preferred embodiment of a chain link plate according to the invention and other elements of the chain unit;

FIG. 2 is a schematic view of the preferred embodiment; and

FIG. 3 is a schematic sectional view of the chain unit of FIG. 1.

Claims

1. A chain link plate comprising: an elliptical plate body having opposite first and second surfaces, and two mounting holes spaced apart from each other in a longitudinal direction of said plate body and extending from said first surface to said second surface, said plate body having a central longitudinal line that passes through centers of said mounting holes, and two transverse lines that pass respectively through said centers of said mounting holes and that are perpendicular to said central longitudinal line, said plate body having an intermediate juncture portion defined between said transverse lines, and opposite end portions integrally and respectively connected to opposite ends of said intermediate juncture portion, said intermediate juncture portion having a largest width greater than that of each of said end portions.

2. The chain link plate as claimed in claim 1, wherein said intermediate juncture portion has two side surfaces opposite to each other in a transverse direction of said plate body and disposed between said transverse lines, each of said side surfaces having two ends and a middle portion, said side surfaces being spaced apart from each other by a transverse distance that increases gradually from said ends to said middle portions.

3. The chain link plate as claimed in claim 1, further comprising an annular surrounding protrusion that is connected integrally to said first surface of said plate body and that is adjacent to a periphery of said plate body such that said first surface of said plate body has an elliptical inner recess area that is defined by said surrounding protrusion and that is formed with said mounting holes.

4. The chain link plate as claimed in claim 3, wherein said second surface of said plate body is generally flat, said chain link plate having a thickness that reduces gradually from an inner periphery of said surrounding protrusion to said periphery of said plate body.

5. The chain link plate as claimed in claim 1, further comprising two circular flanges that extend integrally from said second surface of said plate body and that define respectively peripheries of said mounting holes in said plate body.