초록 ▼

A releasable connecting pin for a shackle or the like comprises a pin (45) having a cylindrical body (46) with a head (47) at one end and a boss (48) at the other end. The boss comprises a cylindrical neck (49) and spaced radially extending projections (50a, 50b, 50c) in the form of a male coupling

A releasable connecting pin for a shackle or the like comprises a pin (45) having a cylindrical body (46) with a head (47) at one end and a boss (48) at the other end. The boss comprises a cylindrical neck (49) and spaced radially extending projections (50a, 50b, 50c) in the form of a male coupling element. A female coupling element comprises apertured flange plates (51, 52) having apertures (53) of a shape complementary to the cross sectional shape of the boss (48) through the projections (50a, 50b, 50c) to permit the flange plates (51, 52) to slide over the boss (48). One flange plate (51) is rotatable about the neck (49) to misalign the boss projections (50a, 50b, 50c) with corresponding notches in the aperture (53) to engage the flange plate (51) behind the boss (48). Set screws 58 extend through aligned apertures (54, 55) in the flange plates (51, 52) to prevent relative rotation and disengagement from the boss (48).

대표청구항 ▼

A releasable retention system for a clevis pin of a clevissed coupling member of heavy engineering equipment, said retention system comprising: a male coupling element having an end boss with a least one radially extending projection; a female coupling element having a flange member with an axially

A releasable retention system for a clevis pin of a clevissed coupling member of heavy engineering equipment, said retention system comprising: a male coupling element having an end boss with a least one radially extending projection; a female coupling element having a flange member with an axially extending aperture of a shape complementary to a cross sectional shape of said end boss having at least one radially extending projection, said male and female coupling elements in use being slidably and non-rotatably engageable by relative axial movement therebetween whereby said end boss is extendable through the aperture in said female element when the at least one radially extending projection on said end boss is aligned with the complementary axially extending aperture in said female element and thereafter, by relative coaxial rotation between said male and female coupling elements, said one or more radially extending projections engage against a retaining face of said flange member to prevent withdrawal of said boss through said aperture, wherein when said male and female coupling elements are engaged, said end boss is circumferentially surrounded by said female coupling element for protection against physical damage.