Adjustable load lifting spreader frame
First Claim
1. In a spreader frame assembly for handling shipping containers and the like, the combination comprising:
- a supporting member;
a horizontal spreader frame having load engaging means on its lower side;
a vertically adjustable reaction member swivelly connected to the upper side of said frame at a position medial of the frame ends which is restrained from rotation;
means movably mounting the reaction member on the supporting member;
a rotate cylinder connected between said frame and said reaction member to rotate said frame about a vertically extending axis;
a tilt cylinder connected between said frame and said reaction member to rotate said frame about a horizontal axis;
lifting means connected to said frame at positions on opposite sides of said positioning column for raising and lowering the frame ends thereby causing vertical adjustment of said reaction member; and
translating operating means connected to said supporting member and reaction member for tilting the reaction member to effect a translation of said frame.
2 Assignments
0 Petitions
Accused Products
Abstract
A spreader frame assembly for connecting onto large, elongate loads such as shipping containers and trailer vans for lifting and moving such loads. The assembly includes a trolley mounted on a straddle carrier with a spreader frame supported beneath the trolley. A positioning column descends from the trolley and makes a swivel connection at the middle of the spreader frame, and a pair of load lifting hydraulic cylinders mounted on the trolley connect at widely spaced points with the spreader frame. A rotate cylinder between the spreader frame and positioning column rotates the frame around a vertical axis, a tilt cylinder also between the spreader frame and column tilts the frame around a horizontal axis, and a translating cylinder between the trolley and column pivots the column to translate the spreader frame.
33 Citations
12 Claims
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1. In a spreader frame assembly for handling shipping containers and the like, the combination comprising:
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a supporting member; a horizontal spreader frame having load engaging means on its lower side; a vertically adjustable reaction member swivelly connected to the upper side of said frame at a position medial of the frame ends which is restrained from rotation; means movably mounting the reaction member on the supporting member; a rotate cylinder connected between said frame and said reaction member to rotate said frame about a vertically extending axis; a tilt cylinder connected between said frame and said reaction member to rotate said frame about a horizontal axis; lifting means connected to said frame at positions on opposite sides of said positioning column for raising and lowering the frame ends thereby causing vertical adjustment of said reaction member; and translating operating means connected to said supporting member and reaction member for tilting the reaction member to effect a translation of said frame. - View Dependent Claims (2, 3, 4)
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5. In a spreader frame assembly for handling shipping containers and the like, the combination comprising:
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a supporting member; a frame disposed beneath said supporting member; a reaction member depending from said supporting member downwardly to a connection with said frame that is vertically adjustable to accommodate raising and lowering said frame; rotate operating means connected between said frame and said reaction member to rotate said frame about a vertically extending axis; tilt operating means connected between said frame and said reaction member to rotate said frame about a horizontal axis; lifting means depending from said supporting member and connected to said frame at positions on opposite sides of said reaction member; and translating operating means connected between said supporting member and said reaction member for tilting the reaction member to effect a translation of said frame. - View Dependent Claims (6)
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7. In a spreader frame assembly for handling shipping containers and the like, the combination comprising:
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an elongate supporting trolley that is movable transversely of itself; an elongate spreader frame disposed beneath said trolley that is alignable with said trolley; a vertically adjustable position orientating reaction member depending from said trolley downwardly to a swivel connection with said spreader frame; a rotate cylinder connected between said spreader frame and said reaction member to rotate said spreader frame about a vertically extending axis; a tilt cylinder connected between said spreader frame and said reaction member to rotate said spreader frame about a horizontal axis; a translating cylinder connected between said trolley and said reaction member to shift said reaction member and said spreader frame with respect to said trolley; and lifting cylinders depending from said trolley and connected to said spreader frame at positions on opposite sides of said swivel connection. - View Dependent Claims (8)
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9. In a spreader frame assembly for handling shipping containers and the like, the combination comprising:
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a supporting member; a central frame disposed beneath said supporting member, said central frame having telescopically mounted end frames that are extendible and retractable with respect thereto; a position orientating column depending from said supporting member downwardly to a connection with said central frame; an extendible-retractable rotate operating member connected between said central frame and said positioning column to rotate said central frame about a vertically extending axis; an extendible-retractable tilt operating member connected between said central frame and said positioning column to rotate said central frame about a horizontal axis; lifting means depending from said support member and connected to said central frame at positions on opposite sides of said connection with said positioning column; and an extendible-retractable translating member connected between said supporting member and said positioning column to tilt the column and thereby translate said central frame. - View Dependent Claims (10)
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11. In a spreader assembly for handling shipping containers and the like, the combination comprising:
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an overhead carrier bridge; a horizontally disposed, elongate, rectangular central frame positioned beneath said bridge; a positioning column carried by said bridge and held from rotation that extends downwardly from the bridge to a universal, swivel connection with said central frame; a sideward extension on said positioning column that is disposed above said central frame; a rotate cylinder that extends and retracts in a horizontal direction connected between said central frame and said sideward extension to rotate said central frame about the vertical; an obliquely positioned tilt cylinder oriented in a plane transverse to said rotate cylinder and connected between said central frame and said positioning column to tilt said central frame about a horizontal line; a translating cylinder connected between said carrier bridge and said column adapted to pivot said column with respect to said carrier bridge to longitudinally translate said central frame; a pair of lifting cylinders pivotally mounted on said carrier bridge that extend downward to pivoted connections with said central frame at points on opposite sides of said positioning column; an extendible end frame projecting from each end of said central frame; cylinder means carried by said central frame for extending and retracting said end frames; and load engaging means mounted on said end frames.
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12. In a spreader assembly for handling shipping containers and the like, the combination comprising:
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an overhead carrier; a horizontally disposed, elongate frame positioned beneath said carrier; a vertically adjustable reaction member, supported from said carrier and held from rotation that extends downwardly from the carrier to a universal connection with said frame; a sideward extension on said reaction member that is disposed above said frame; a rotate operating member that extends and retracts in a horizontal direction connected between said frame and said sideward extension to rotate said frame about the vertical; an obliquely positioned tilt operating member oriented in a plane transverse to said rotate cylinder and connected between said frame and said reaction member to tilt said frame about a horizontal line; a translating operating member connected between said carrier and said reaction member adapted to pivot said reaction member with respect to said carrier to longitudinally translate said frame; a pair of load lifting members pivotally mounted on said carrier that extend downward to pivoted connections with said frame at points on opposite sides of said reaction member; and load engaging means mounted on said frame.
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Specification