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US 6,672,467 B2Granted
Articulating truss boom
AssigneeNone recorded
InventorsJoseph J. Merkel, Albert Jubeck, H. Peter Huttelmaier, Michael W. Wallschlaeger
Life of this patent
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AssigneeNone recorded
InventorsJoseph J. Merkel, Albert Jubeck, H. Peter Huttelmaier, Michael W. Wallschlaeger
Estimating the term…
An articulating truss boom for use with a lifting machine is described. The articulating truss boom assembly includes an articulating truss boom frame, a stationary support member attachable to a lifting machine, and an internal pivot assembly having a vertical pivot axis interposed between and providing the connection between the stationary support member and the articulating truss boom frame. The articulating truss boom frame is capable of pivoting with respect to the stationary support member about the vertical pivot axis in a horizontal plane transverse to the vertical pivot axis. The articulating truss boom assembly includes a hydraulic assembly which includes a metering valve having a removable restrictor inserted therein. The removable restrictor has a constricted channel therethrough to limit the hydraulic fluid channeled to the hydraulic assembly. Rubber shock absorbing pads may be attached to at least one of the stationary support member and the articulating truss boom frame to prevent direct contact therebetween and minimize vibrational swaying.
A device for setting building sections comprising:
An articulating truss boom assembly for use with an all-terrain lift having a telescopic boom comprising;
A rotating arm for use with a lifting machine comprising:
A telescopic handler having a front and a rear comprising:
An articulating truss boom assembly comprising:
An articulating truss boom assembly comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Movable, with their loads, on wheels or the like, e.g. fork-lift trucks: characterised by having a lifting jib
Hoisting, lifting, hauling or pushing, not otherwise provided for
Term ended 14 Dec 2018 (estimated)
The present invention relates generally to material handling attachments. In particular, the invention relates to an articulating truss boom that is securely attached to the end of a lifting machine. The articulating truss boom has an internal pivot joint that permits secure horizontal movement and usage of the articulating truss boom.
In the construction industry it is common to utilize attachments on material handling or other lofting machines in order to increase both the height and reach of the lifting machines. In addition, it is often necessary to refine the placement of such attachments as truss booms for carrying housing trusses. For example, after a material handling machine with an associated telescoping boom or other lifting machine has positioned a truss boom as close to its intended location as is practical in the vertical direction, it may be necessary to refine the orientation of the attachment in the horizontal direction. Previously, changing the horizontal orientation of the attachment involved moving the entire material handling or lifting machine and repositioning the entire apparatus for another attempt, which would not guarantee optimal orientation of the attachment. This procedure is time-consuming and potentially dangerous, moving the entire material handling machine may involve removing stabilizers and leveling equipment, backing up and repositioning the material handling machine with relatively heavy loads. Additionally, it may not always be possible to move the material handling machine closer to the desired location, as is the case when the machine would be parallel to a wall.
It would be advantageous to be able to place the truss boom into its final horizontal position by simply pivoting the truss boom while the truss boom was still securely attached to the telescoping boom or other implement of the material handling or lifting machine.
A clear conception of the advantages and features constituting the present invention, and of the construction and operation of typical mechanisms provided with the present invention, will become more readily apparent by referring to the exemplary, and therefore non-limiting, embodiments illustrated in the drawings accompanying and forming a part of this specification, wherein like reference numerals designate the same elements in the several views, and in which:
FIG. 1 is a perspective view of a lifting machine utilizing an articulating truss boom in accordance with the present invention;
FIG. 2 is top plan view of the lifting machine showing the relative pivoting motion of the articulating truss boom in accordance with the present invention;
In describing the preferred embodiment of the invention which is illustrated in the drawings, specific terminology will be resorted to for the sake of clarity. However, it is not intended that the invention be limited to the specific terms so selected and it is to be understood that each specific term includes all technical equivalents which operate in a similar manner to accomplish a similar purpose. For example, the word connected or terms similar thereto are often used. They are not limited to direct connection but include connection through other elements where such connection is recognized as being equivalent by those skilled in the art.
The present invention and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments described in detail in the following description.
Referring to in general to the drawings and more specifically to FIG. 1, an articulating truss boom assembly is shown and is designated generally by the numeral 10. The articulating truss boom assembly 10 is shown carrying a load 12 and is shown attached to the attachment coupler 14 of the lifting machine 16. The lifting machine 16 is shown utilizing a telescoping boom 18. The lifting machine 16 is of the conventional type and may include such machines as telescopic handlers, all-terrain fork lifts, or any other machine that may require increased height and/or reach of the implements attached thereto. The lifting device or handler 16 includes a front 16a, a rear 16b and cab 17. Preferably, the boom 18 diagonally extends over the cab 17 toward the front 16a of the handler 16 and rotates as a single arm 19 about a vertical axis.