Pin-retaining structure and method for retaining a pin

Details Pin-retaining structure and method for retaining a pin Pin-retaining structure and method for retaining a pin

1995-04-27

1996-11-26

Johnson, Blair

Joints and connections

Including ancillary means blocking disconnection of joint

Blocker for assembled joint retainer

403 79, 403 97, 403157, 403348, B25G 300, F16D 112, F16D 300, F16C 1100

Patent

active

055778585

ABSTRACT:
An apparatus such as a digging bucket has a clevis device pivotably connected thereto by a pin held in place by a pin-retaining structure. The clevis includes a plurality of arcuate, lip-like, outwardly-radially-projecting first retention members and the structure includes a cap portion having a plurality of arcuate, lip-like, inwardly-radially-projecting second retention members. Each second retention member engages and "locks" to a separate first retention member. The cap portion, which interferes with free axial travel of the pin, is well secured so that the pin is retained in engagement with the clevis without welding the pin. Avoiding pin welding permits using a substantially-harder pin, resulting in significantly better wear characteristics. A new method for retaining a pin is also disclosed.

REFERENCES:
patent: 3606406 (1971-09-01), Walters
patent: 4337614 (1982-07-01), Briscoe

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