Excavating – Railway graders – Side former
Patent
1980-04-10
1981-10-20
Eickholt, E. H.
Excavating
Railway graders
Side former
414723, 403316, 403321, 37118R, E02F 370
Patent
active
042952875
ABSTRACT:
A quick coupling bucket mounting mechanism is disclosed for coupling a material handling bucket, blade, compactor, impact hammer or other attachment to the free end of a scoop arm extending from a loader or backhoe. A quick coupler is provided which is pivotally mounted to the loader scoop arm for readily receiving various types and sizes of attachments. The quick coupler has a three-leg configuration including a pair of bucket mounting legs adaptable for engagement with a bucket mounting pin. One end of each bucket mounting leg has a hook portion which cooperatively locks around lateral projections of the bucket mounting pin. A releasable latch mechanism is pivotally mounted on the third leg of the quick coupler for engagement with a complementary latch pin on the bucket. The latch mechanism is selectively rotatable to two positions. In a first position, it is aligned with and forms an opening which permits the quick coupler to be seated on the bucket latch pin. The latch mechanism is then rotated to a second position which closes the opening thereby providing a bearing mounting for the bucket latch pin in the latch mechanism. In the latched position of the quick coupler, a quick and reliable coupled connection is formed between the bucket and loader scoop arm.
REFERENCES:
patent: 3556323 (1971-01-01), Helmmermann
patent: 3672521 (1972-06-01), Bauer et al.
patent: 4056250 (1977-11-01), Uchiyama
patent: 4133121 (1979-01-01), Hemphill
patent: 4187050 (1980-02-01), Barbee
patent: 4213731 (1980-07-01), Verachtert
patent: 4214840 (1980-07-01), Beales
patent: 4225283 (1980-09-01), Baker et al.
patent: 4243356 (1981-01-01), Takojima
patent: 4253793 (1981-03-01), Brami
Brown Thomas R.
Natzke Ronald C.
Eickholt E. H.
J. I. Case Company
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