The present invention relates to a tie-down assembly of the type used to secure tie-down ropes or straps in place, for example, inside an automobile such as a truck.
Tie-down assemblies have been used for some time to secure freight transported in vehicles. Tie-down assemblies are firmly mounted inside a vehicle, such as a truck, ship, or container. As needed, straps, ropes, or lines are then fastened to the tie-down assemblies to hold freight in a desired location or position.
In the past, several types of tie-down assemblies have reached widespread acceptance. A first approach uses a D-ring formed of circular cross-section, heavy gauge wire. The D-ring is pivotably mounted within a U-channel that is in turn welded in place. This tie-down assembly does not allow the channel to rotate in use, and welding operations are required to mount the assembly in place. Two examples of this approach are identified as lashing rings B40 and B50 as distributed by the Buyers Products Company.
A second approach is to provide a sheet metal bracket that surrounds a D-ring at least partially. The bracket is in turn secured in place, as for example with threaded fasteners. This approach provides a light weight, low cost design. Examples of this type of tie-down assembly are shown in U.S. Pat. No. 4,907,921, assigned to the assignee of the present invention, and cargo tie-down models 39F and 300F of the A. L. Hansen Mfg. Co.
A third approach is to provide a metal cup that defines a recess in which a cross-bar is pivotably mounted with a threaded fastener that defines a pivot axis. The cross-bar defines a stud at each end, and a rectangular section bail is mounted onto these studs. An example of this approach is shown as model 10-40 of A. L. Hansen Mfg. Co. This approach requires a threaded fastener to secure the cross-bar in place.
A fourth approach utilizes a ring to which is secured an axle that passes through a mounting post. An example of this approach is shown as model CAT-340 of Austin Hardware.
A fifth approach utilizes a mounting plate and a cross-bar. The cross-bar defines an integral post and two opposed recesses that receive ends of a tie-down bail. The integral post passes through a bearing washer and a central opening in the central panel and defines an enlarged head that secures the tie-down assembly together. This approach is described in U.S. Pat. No. 5,052,869, which is incorporated by reference herein, is titled “Tie Down Assembly,” and is assigned to A.L. Hansen Mfg. Co.
The various preferred embodiments provide significant improvements and advantages over previously known tie-down assemblies. According to a first aspect of the invention, a tie-down assembly is provided. The tie-down assembly includes a housing configured to receive a pair of bails. A cross-bar and post are used to rotatably connect the bails to the housing. The pair of bails can be identical or have different geometries. Exemplary geometries include an archoidal or D-shape, and a trapezoidal shape.
The foregoing paragraph has been provided by way of general introduction, and is not intended to limit the scope of the following claims. The presently preferred embodiments, together with further advantages will be best understood by reference to the following detailed description taken in conjunction with the accompanying drawings.
Embodiments of the present invention will now be described by way of example with reference to the accompanying drawings, in which:
The invention is described with reference to the drawings in which like elements are referred to by like numerals. The relationship and functioning of the various elements of this invention are better understood by the following detailed description. However, the embodiments of this invention as described below are by way of example only, and the invention is not limited to the embodiments illustrated in the drawings. It should also be understood that the drawings are not to scale and in certain instances details have been omitted, which are not necessary for an understanding of the present invention, such as conventional details of fabrication and assembly.
Referring to the drawings,
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Cross bar 18 is secured to housing 14 by post 30. Post 30 can be formed integrally with cross-bar 18, as shown in
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The embodiments described above and shown herein are illustrative and not restrictive. The scope of the invention is indicated by the claims rather than by the foregoing description and attached drawings. The invention may be embodied in other specific forms without departing from the spirit of the invention. For example, the bails can be forged or cast in any number of materials, shapes and sizes. The bails can be provided with a round cross-section, or a cross-section of any suitable shape. Alternatively, three or more bails can be provided with the tie-down assembly, depending on the overall size of the housing, the cross-bar, and the post. The shape and structure of the housing can also be changed as necessary for various applications. For example, a square housing can alternatively be provided so as to fit within a square opening. Additionally, the mounting openings can be formed on the flange rather than the bottom plate. Accordingly, these and other changes which come within the scope of the claims are intended to be embraced herein.
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Number | Date | Country | |
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20060133907 A1 | Jun 2006 | US |