US 2013/0280009 A1 · RETAINING PIN ASSEMBLY FOR A LIFTING SYSTEM

Abstract

A retaining pin assembly for a lifting system which includes a hook prong and a hook cam. The retaining pin assembly includes at least one lock arm assembly having a first end with at least one aperture which aligns with an opening through the hook cam and having an opposed second end with at least one aperture which aligns with an opening through the hook prong. A hook cam retaining pin has a head and has a shaft passing through the hook cam opening and the lock arm first end aperture, wherein the shaft has at least one groove therein parallel to the axis of the shaft. A retaining ring surrounds the hook cam shaft, the retaining ring having at least one inwardly extending tab received in the shaft groove in order to retain the pin in the lock arm. A recess in the lock arm receives the retaining ring therein.

Claims18

Dependent claims

A retaining pin assembly for a lifting system wherein said lifting system includes a hook prong and a hook cam, said retaining pin assembly comprising:

at least one lock arm having a first end with at least one aperture which aligns with an opening through said hook cam and having an opposed second end with at least one aperture which aligns with an opening through said hook prong;
a hook cam retaining pin having a head and having a shaft passing through said hook cam opening and said lock arm first end aperture, wherein said shaft has at least one groove therein parallel to the axis of said shaft;
a retaining ring surrounding said hook cam shaft, said retaining ring having at least one inwardly extending tab received in said at least one shaft groove in order to retain said pin in said lock arm;
and
a recess in said lock arm to receive said retaining ring therein when said retaining pin is retracted.

2 more elements

A retaining pin assembly for a lifting system wherein said lifting system includes a hook prong and a hook cam, said retaining pin assembly comprising:

at least one bail arm having a first end with at least one aperture which aligns with an opening through said hook cam and having an opposed second end with at least one aperture which aligns with an opening through said hook prong;
a hook cam retaining pin having a head and having a shaft passing through said bail arm first end aperture, wherein said shaft has at least one slot therein parallel to the axis of said shaft;
a retaining clip surrounding said shaft, said retaining clip having at least one inwardly extending tab received in said at least one shaft slot in order to retain said pin in said bail arm;
and
a recess in said bail arm to receive said retaining clip therein when said retaining pin is retracted;
a hook prong retaining pin having a head and having a shaft passing through said bail arm second end aperture, wherein said shaft has at least on slot therein parallel to the axis of said shaft;
a retaining clip surrounding said pin shaft, said retaining clip having at least one inwardly extending tab received in said at least one shaft slot in order to retain said pin in said bail arm;
and
a recess in said bail arm to receive said retaining clip therein.

6 more elements

Dependencies are inferred from the claim text.

Retaining pin assembly for a lifting system

Life of this patent

Retaining pin assembly for a lifting system

Life of this patent

Abstract

Claims18