Patent US3578188A successfully refreshed from Google Patents.
US3578188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bucket actuated means for excavator
Assignee: CNH Industrial Baumaschinen GmbH
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Filing: 1968-10-22
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Granted: 1971-05-11
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Expires: 1988-10-22
Abstract
Abstract A power transfer mechanism for excavator bucket operation by fluid actuator means effective upon a working point, to which a rocker arm is journaled from a dipper arm pivot located above the turning axis of the bucket and to which a coupling member is journaled from a bucket pivot located below the turning axis of the bucket. A bucket front portion is tiltable during bucket opening and closing with respect to a turning point shaft in radial alignment with semicircular formed guide slot means of a box-formed housing of the bucket back portion. A housing cover provides access to parts including fluid actuator means protected in the box-formed housing and used to effect tiltable movement of the front portion with respect to the back portion of the bucket.
Inventors
- 👤 Gotthardt Drieschner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:15
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/30; E02F3/32; E02F3/308; E02F3/36; E02F3/40; E02F3/402; E02F3/404; E02F3/42; E02F3/425
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
223 words
A bucket-actuating means for an excavating machine having a body relative to which a cantilever beam is journaled to move up nd down and a dipper arm is pivotally connected to said cantilever beam at one end thereof movable to and fro with respect to said body, comprising: a bucket back portion and bucket front portion journaled at an upper pivot permitting opening and closing movement relative to each other, a pivot means interconnecting said bucket back portion and said dipper arm in a location below said upper pivot of said back and front portions, actuating means journaled to said dipper arm and having a force transmitting end point, a rocker arm pivotally journaled above said pivot means to said dipper arm and said end point of said actuating means, a coupling member pivotally joined between said end point and said bucket back portion below both said pivot means and said upper pivot, said actuating means at said force transmitting end point thereof causing arm and coupling member movement for tilting said back portion about said pivot means, said bucket back portion having sidewalls forming side boundary thereof including an inner sidewall, and an outer sidewall and band means interconnecting said inner and outer sidewalls which are box forming for all around protective accommodation of the pivot actuation of said bucket front portion.
Claim 2
Dependent Claim
223 words
A bucket-actuating means for an excavating machine having a body relative to which a cantilever beam is journaled to move up nd down and a dipper arm is pivotally connected to said cantilever beam at one end thereof movable to and fro with respect to said body, comprising: a bucket back portion and bucket front portion journaled at an upper pivot permitting opening and closing movement relative to each other, a pivot means interconnecting said bucket back portion and said dipper arm in a location below said upper pivot of said back and front portions, actuating means journaled to said dipper arm and having a force transmitting end point, a rocker arm pivotally journaled above said pivot means to said dipper arm and said end point of said actuating means, a coupling member pivotally joined between said end point and said bucket back portion below both said pivot means and said upper pivot, said actuating means at said force transmitting end point thereof causing arm and coupling member movement for tilting said back portion about said pivot means, said bucket back portion having sidewalls forming side boundary thereof including an inner sidewall, and an outer sidewall and band means interconnecting said inner and outer sidewalls which are box forming for all around protective accommodation of the pivot actuation of said bucket front portion.
Claim 3
Dependent Claim
38 words
The bucket-actuating means according to claim 1, in which for opening and closing said bucket front portion relative to said bucket back portion an actuator is provided and is enclosed by said box forming sidewalls and band means.
Claim 4
Dependent Claim
27 words
The bucket-actuating means according to claim 1, in which an assembly opening is provided between said box forming sidewalls and a removable lid covers said assembly opening.
Claim 5
Dependent Claim
50 words
The bucket-actuating means according to claim 2, in which a bolt is provided transversely of said actuator and crescent-formed opening means in at least one of said sidewalls receive said bolt which transmits movement to effect opening and closing of said bucket front portion relative to said bucket back portion.
Claim 6
Dependent Claim
30 words
The bucket-actuating means according to claim 4, in which said upper pivot journaling said bucket front portion to said bucket back portion is radially aligned with said crescent-formed opening means.
Claim 7
Dependent Claim
19 words
The bucket-actuating means according to claim 5, in which a bellcrank level interconnects said bolt and said upper pivot.
Claim 8
Dependent Claim
34 words
The bucket-actuating means according to claim 6, in which a pin journals said actuator between said box forming sidewalls and is mounted transversely of said sidewalls below both said bolt and said upper pivot.
Claim 9
Dependent Claim
26 words
The bucket-actuating means according to claim 7, in which said pin is parallel to both said bolt and said upper pivot within said box forming sidewalls.
Claim 10
Dependent Claim
44 words
The bucket-actuating means according to claim 8, in which said arm, said coupling member and said bucket back portion are pivotally movable in a triangular relationship that is over center with respect to said pivot means and always to one side of said pin.
References Cited (Backward Citations)
US3209474A
Cited
US3207340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |