EP 0343191 B1 19930804 - POSITIVE KEEPER MEANS FOR PINS OF EARTHWORKING TIPS
Title (en)
POSITIVE KEEPER MEANS FOR PINS OF EARTHWORKING TIPS
Publication
Application
Priority
- US 451587 A 19870120
- US 451687 A 19870120
Abstract (en)
[origin: WO8805483A1] Pin retainer assembly having a keeper means for retaining earthworking tips on adapters. Positive retention of earthworking tips on their adapters by their retaining pins during its work cycle is extremely important from an operational as well as a cost standpoint. The loss of the tips materially affect productions in addition to the time consuming expense of replacement of repair of the components. Not only must the tips be adequately retained, they must be capable of quick removal for replacement purposes. Keeper means (44) for the pin (17) is captured in a recess (28) between a nose (16) of the adapter (12) and a sidewall (36) of the tips (14) and includes a washer (46) slidably disposed on the pin (17) and a resilient retaining ring (68, 78) having a predetermined radial thickness disposed in locking engagement in a groove (21) on the pin (17) and a groove (50) of the washer (46). One of the grooves (21, 50) in the pin (17) and the washer has a depth equal to or greater than the predetermined radial thickness of the retaining ring (68, 78) and the other one of the grooves (21, 50) has a depth sufficient to prevent camming of the ring (68, 78) out of the groove (21, 50) and to provide substantially the maximum cross-section width of the ring (68, 78) in shear. In order to disassemble the pin (18), the ring (68, 78) must be sheared or the washer (46) fractured.
IPC 1-7
IPC 8 full level
CPC (source: EP)
E02F 9/2841 (2013.01)
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
WO 8805483 A1 19880728; AU 1396488 A 19880810; AU 605268 B2 19910110; CA 1283939 C 19910507; DE 3786929 D1 19930909; DE 3786929 T2 19940310; EP 0343191 A1 19891129; EP 0343191 B1 19930804; ES 2006269 A6 19890416; JP 2614910 B2 19970528; JP H02502033 A 19900705
DOCDB simple family (application)
US 8703157 W 19871130; AU 1396488 A 19871130; CA 555963 A 19880106; DE 3786929 T 19871130; EP 88902349 A 19871130; ES 8800113 A 19880119; JP 50236088 A 19871130