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US 4,102,124 AGranted
Locking clevis or the like
OwnerWilliam E. Swagerinventor
Life of this patent
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OwnerWilliam E. Swagerinventor
Estimating the term…
A pin or bolt slidingly supportable in rings at opposite ends, or throughout its body in a sleeve, such as through the eyes of a clevis, is usefully locked against axial displacement by a radially sliding spring-biased detent which fits into a groove of a supporting ring or sleeve, securing it against axial displacement. The supporting ring has a slot extending inward from a support surface and sized to receive a key, such as a disc or a coin, which may be inserted in the slot to engage and depress the detent against its biasing spring, sufficient to displace it from the groove of the ring and thus unlocking and allowing the pin to be displaced in its support by sliding therefrom axially. In a modified form, where the supporting rings of a clevis are dimensioned so small that the radially cut slot would tend to weaken them, the ends of the pin may be secured by extra annular rings or washers mounted adjacent to the main supporting rings of the clevis. In the modified form the extra locking rings are sized to receive the internal groove for retaining the tip of the spring biased detent, as well as the slot cut radially into the additional ring, through which the key-like coin is inserted for radial displacement of the detent and thus releasing a locked pin for axial movement. In a second modification the key may be a small plate resiliently supported in a slot between resilient pads in a keyway groove cut in a clevis ring from which the outer end of the key extends, allowing a finger to be inserted to press against the key plate, pressing it against the tip of the detent for unlocking the pin for axial movement.
The combination of a support comprising a bent bar-like body having ends terminating in eyes provided by bores in each end, the opposed edges of said bores that face each other being chamfered to serve as a guide, and a closure pin or bolt axially slideable and rotatable in said eyes, at least one detent mounted for radial sliding movement in said pin and means radially biasing said detent through the sliding surface of said pin, a retaining area in at least one eye of said support adjacent to said detent and shaped to receive the end of said detent in biased position, locking said pin or bolt against axial movement while allowing rotation in said eyes, a slot cut through an outer surface of at least one of the eyes of said support communicating with the end of said detent in said retaining area and key means insertable in said slot to depress said detent radially releasing said pin for axial movement of said support.
A bent, bar-like body having ends terminating in eyes provided by bores each to receive a closure pin slideable axially and rotatably mounted in each eye, the opposed edges of said bores that face each other being chamfered to serve as a guide, at least one detent mounted for radial sliding movement in a radial bore near a support end of said pin, said detent being resiliently biased against a stop in said bore with the locking tip of said detent extending outward of the sliding surface of said pin, a circumferentially cut groove in at least one of said eyes cut to receive the locking tip of said radially biased detent, retaining said detent tip and pin against axial movement, and a slot cut radially through an outer surface of each eye communicating with said groove and the locking tip of said detent therein to receive a key to depress said detent tip for unlocking and allowing axial movement of said pin in said eye.
A bent, bar-like body having ends terminating in eyes, a ring-mounted adjacent to a face of each eye with both eyes and rings coaxially bored to receive and support a closure pin slidable axially through each eye and ring, at least one detent having a locking tip mounted for radial sliding movement in a radial bore of said pin in the area of support by a ring, said detent being resiliently biased against a stop in said radial bore with the locking tip of said detent extending outward of the sliding surface of said pin, a groove in said ring cut to receive the locking tip of said radially biased detent retaining said detent tip and pin against axial movement, and a slot cut radially through an outer surface of each ring communicating with said groove and locking tip of said detent therein to receive a key inserted to depress said detent locking tip, thereby unlocking and allowing axial movement of said pin in through said ring and eye.
Dependencies are inferred from the claim text.