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Trailer frame

a technology for trailers and frames, applied in the direction of vehicle body frame connections, understructures, resilient suspensions, etc., can solve the problems of increasing the amount of stock and stock required, and shipping the completed fram

Inactive Publication Date: 2005-12-15
NORCO INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This design enables efficient assembly and reduces inventory requirements by allowing manufacturers to assemble frames with the appropriate axle units at the time of assembly, optimizing storage space and shipping capacity.

Problems solved by technology

One problem with welded trailer frames is shipping the completed frame.
Another problem is inventory.
If an recreational vehicle manufacturer uses both torsion axle frames and sprung axle frames or uses multiple size frames, the manufacturer must stock all the various combinations as fully assembled trailer frames, which increases required stock and storage space for stock.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0023] The FIGURES show a bolt-together trailer frame 10 that can accept either a torsion axle 40 or a sprung axle 30 without modification of the trailer frame side members. This allows a trailer manufacturer or a recreational vehicle manufacturer to reduce parts inventory. The manufacturer no longer has to stock fully assembled trailer frames with both torsion axles and sprung axles. The appropriate axle unit can be added at the time the frame 10 is assembled.

[0024] The trailer frame 10 shown in FIG. 1 can be used for both torsion axles and sprung axles. Although, the trailer frame 10 shown in FIG. 2 is primarily intended for use with sprung axles, it could be used with torsion axles.

[0025] The bolt-together trailer frame 10 is assembled from a plurality of frame members 11, front cross member 12, rear cross member 13 and A frame or trailer tongue members 14 that are bolt together with a plurality of threaded fasteners. Additional floor supports or outriggers are added as needed ...

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PUM

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Abstract

A bolt-together trailer frame that can have either a torsion axle or a sprung axle attached thereto without modification of the trailer frame side members. The side frame of the trailer includes at least one axle cut-out with an axle cut-out reinforcement plate attached about the cut-out. A torsion axle is welded to the axle cut-out reinforcement plates. A sprung axle is attached to the trailer frame with a plurality of spring hangers to which leaf springs are connected. The axle of the sprung axle is then attached to the spring hangers.

Description

[0001] This application is a continuation of Ser. No. 10 / 045,365, filed Nov. 7, 2001, which claims the benefit of U.S. Provisional application No. 60 / 246,813 filed Nov. 8, 2000, which is hereby incorporated by reference.BACKGROUND OF THE INVENTION [0002] This invention relates generally to trailer frames and more particularly to bolt-together trailer frames. [0003] Typically trailer frames are manufactured by welding frame members together. Typical frame members include flat, L-shaped or U-shaped metal rail sections or tube sections. Frequently, spring hangers are welded directly to the rail or tube sections for sprung axle units. An axle tube of a torsion axle can also be directly welded to the rail or tube sections or can be attached using shackles. These trailer frames are used for boat trailers, recreational vehicles, horse trailers, utility trailers, etc. [0004] One problem with welded trailer frames is shipping the completed frame. Because the entire frame including axles is p...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B60G3/12B60G7/02B60G11/18B60G21/02B60G21/05B62D21/00B62D21/20B62D63/08
CPCB60G3/12B60G7/02B60G11/18B60G21/026B60G21/051B60G21/052B60G2200/22B60G2204/1434B62D21/20
Inventor FEW, JEFFREY P.GARCEAU, BERNARD
Owner NORCO INDS