US4668154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment apparatus for crane or the like
Assignee: Kongo Co Ltd
•
Filing: 1985-07-05
•
Granted: 1987-05-26
•
Expires: 2005-07-05
Abstract
Abstract An attachment apparatus is arranged to be suspended from an overhead travelling crane or other similar means and is employed for a cargo handling operation, for example, unloading an article placed on a shelf or rack. The attachment apparatus includes a frame section adapted to be suspended from a hook attached to a crane, a fork section movably mounted on the frame section and adapted to scoope up an article, and a driving section for driving the fork section. The frame section has a ceiling member equipped with a suspension member, the mounting position of the suspension member being adjustable. The fork section has a pair of fork members, the distance therebetween being adjustable.
Inventors
- 👤 Yutaka Ueno
- 👤 Toyohiko Tsuchida
- 👤 Akira Matsuoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:00
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/12; B66C13/14; B66C13/18; B66C13/22; B66C13/30; B66F; B66F9/00; B66F9/06; B66F9/07; B66F9/075; B66F9/12; B66F9/14; B66F9/142
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
162 words
An attachment apparatus adapted to be suspended from a crane, comprising: a frame section adapted to be suspended from a hook attached to said crane; a fork section vertically movably mounted on said frame section and adapted to scoop up an article; a driving section for vertically driving said fork section; a first driving means for moving said fork section relative to said frame section in a lateral direction perpendicular to a direction in which said fork section scoops up the article; a counter weight provided on said frame section; a hanging means provided on said frame section for engaging with said hook of the crane; and a second driving means for simultaneously moving said hanging means and said counter weight relative to said frame section in opposite directions parallel to the direction in which said fork section scoops up the article; at least one of said first and second driving means being actuated to control a position of said attachment apparatus.
Claim 2
Dependent Claim
162 words
An attachment apparatus adapted to be suspended from a crane, comprising: a frame section adapted to be suspended from a hook attached to said crane; a fork section vertically movably mounted on said frame section and adapted to scoop up an article; a driving section for vertically driving said fork section; a first driving means for moving said fork section relative to said frame section in a lateral direction perpendicular to a direction in which said fork section scoops up the article; a counter weight provided on said frame section; a hanging means provided on said frame section for engaging with said hook of the crane; and a second driving means for simultaneously moving said hanging means and said counter weight relative to said frame section in opposite directions parallel to the direction in which said fork section scoops up the article; at least one of said first and second driving means being actuated to control a position of said attachment apparatus.
Claim 3
Dependent Claim
32 words
An attachment apparatus as set forth in claim 1, wherein said driving means moves said counter weight by a distance twice as great as the distance of movement of said hanging means.
Claim 4
Dependent Claim
29 words
An attachment apparatus as set forth in claim 1, further comprising a sensor means for automatically sensing the tilting of said attachment apparatus in forward, backward and sideward directions.
Claim 5
Dependent Claim
17 words
An attachment apparatus as set forth in claim 3, wherein said sensor senses eight possible tilting directions.
Claim 6
Dependent Claim
48 words
An attachment apparatus as set forth in claim 3, further comprising means for sensing swinging movements of said attachment apparatus and wherein positional control of said attachment apparatus is possible only after said swinging movement sensing means signals that a swinging movement of said attachment apparatus has ceased.
Claim 7
Dependent Claim
29 words
An attachment apparatus as set forth in claim 1, wherein said frame section comprises a mast which can be increased in its overall length by means of an extension.
Claim 8
Dependent Claim
106 words
An attachment apparatus as set forth in claim 1, wherein said first driving means comprises a guide rod provided on said frame section, motors respectively mounted on opposite ends of said guide rod, a pair of screw bolts, each of said screw bolts having one end connected to an output shaft of one of said motors and another end journaled by a block secured to said guide rod, movable blocks each secured to one end of said fork and adapted to be threadedly engaged by the respective screw bolts; and bearing members mounted on each end of said fork to be slidable on said guide rod.
Claim 9
Dependent Claim
29 words
An attachment apparatus as set forth in claim 1, wherein said frame section comprises a pair of handles and a switch box provided adjacent to said handles for control.
Claim 10
Dependent Claim
30 words
An attachment apparatus as set forth in claim 1, wherein said fork section comprises two prongs, and said first driving means acts to move said prongs independently of each other.
References Cited (Backward Citations)
US2644593A
Cited
US2772794A
Cited
US2822101A
Cited
US3341243A
Cited
US2998278A
Cited
US3174634A
Cited
US3232455A
Cited
US3389814A
Cited
US3516559A
Cited
US3606955A
Cited
US3762755A
Cited
US3810551A
Cited
US3865265A
Cited
US3974927A
Cited
US3998488A
Cited
US4138824A
Cited
US4251098A
Cited
US4256337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-25 | 1990-11-24 | 1991-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-25 | 1994-11-24 | 1995-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-25 | 1998-11-24 | 1999-05-26 | $7700.00 | Window Closed / Lapsed |