STRAP ROLLER
A device for supplying heavy duty strapping for use in a cargo area. The device includes a housing, a two-way motor supported within the housing having a shaft for paying out, winding and storing the heavy duty strapping and a magnet affixed to the housing and sized to releaseably affix the device to a magnetically attractable support.
The present application relies upon U.S. Provisional Application Ser. No. 61/029,525 filed on Feb. 18, 2008.
TECHNICAL FIELDThe present invention involves a device for supplying heavy duty strapping for use in retaining cargo in such environments such as the cargo area of a vehicle. The device is powered by a two-way motor for paying out and withdrawing the strapping and is releaseably affixed to the cargo area by affixing the device to a magnetically attractable surface thereof.
BACKGROUND OF THE INVENTIONHeavy duty straps are commonly used in manufacturing, transporting and storing a variety of products. Equipment such as trailers or containers may be equipped with these straps to stabilize the loads being carried. To be effective, there must often be several straps that reach across the entire length of the load at different locations. The straps must be sturdy enough to withstand the loads they bare. The straps must also be long enough to span the entire length of the load. As a result, these straps are often long and heavy, and may often become intertwined with other straps.
The process of coiling these lengthy and heavy straps after usage may take considerable time and effort. There is therefore a need for products that may simplify and expedite the process of coiling the straps. These products must be powerful and convenient. These products must also be portable enough to handle the wide variety of strap arrangements needed to handle a diversity of load configurations.
Several prior art approaches have addressed the consumers' desire for strap rollers. For example, some prior art strap rollers use manual cranks as coiling devices. One end of the strap is attached to a roller. The user then turns a hand crank to turn the roller, coiling the strap as the crank and roller turn. These devices provide an alternative to coiling straps by hand, but may be inconvenient, laborious and time consuming. Examples of these strap rollers appear in the following U.S. Pat. Nos., which are incorporated herein by reference for their supporting teaching: U.S. Pat. No. 6,729,604 to Claycomb; U.S. Pat. No. 6,206,317 to Harverstine; U.S. Pat. No. 5,975,454 to Potter; and U.S. Pat. No. 5,603,589 to Regal.
Another approach uses a cranking system that utilizes an external power source. These devices use a cranking system similar to the manual cranks. These devices, however, offer the option of using an external motor as a power source. The user attaches one end of the strap to the coiling device. The user then attaches the device to an external motor and the motor turns the roller and coils the strap. The use of motors makes these devices less laborious and time consuming than manual cranks. However, the need for an external power source still makes these devices inconvenient and limits their portability This approach appears in U.S. Pat. No. 7,059,588 to Goulet and U.S. Pat. No. 6,467,755 to Reilly, which are incorporated herein by reference to for their supporting teachings.
Yet another approach uses a handheld, powered coiler. This approach appears in U.S. Pat. No. 4,588,167 to Finzel, which is incorporated herein by reference for its supporting teachings. This product combines a small motor with a crank to make one unified coiling device. The user attaches one end of the strap to the spool. The user then holds the device as the motor turns the spool and coils the strap. This device is more portable and convenient than coilers that use an external power source. This device is also more expedient and convenient than manual cranks. However, the coiling process may still be laborious and time consuming because of the need for the user to hold the device while it coils. This device also lacks the ideal stability and convenience needed for working with heavy straps.
Traditionally, devices of this nature have been affixed to key locations within or approximate a cargo area for retaining and stabilizing cargo therein. In doing so, mounting plates are provided for the passage of carriage bolts and the like resulting in permanently established fixed locations for these coilers. Although a permanent anchoring system provides a secure framework for paying out, winding and storing heavy strapping, such an arrangement is not without its drawbacks. For example, holes must be crafted within or proximate to the cargo area thus defacing such support structure. Further, although a fixed location for a coiler may be ideal in some situations, when loads change, it may be preferable to have such devices in different locations. Fixing the devices permanently, such as at a fixed location within the side wall of a vehicle reduces flexibility and thus utility of such coilers.
It is thus an object of the present invention to provide a device capable of paying out, withdrawing and supporting heavy strapping that can be repositioned at will while retaining the utilitarian benefits of the prior art.
These objects will be more readily apparent when considering the following disclosure and appended claims.
SUMMARY OF THE INVENTIONA device for supplying heavy duty strapping for use in a cargo area. The device includes a housing, a two-way motor supported within the housing having a shaft for paying out, winding and storing the heavy duty strapping and a magnet affixed to the housing and sized to releaseably affix the device to a magnetically attractable support.
As noted, the present invention involves a device for supplying heavy duty strapping for use in retaining cargo
Turning to
Emanating through axle hole 13 (
When motor within motor housing 15 is employed to cause axle 22 to rotate in one direction, heavy duty strapping winds upon spool 23. When switch 12 is set in an opposite orientation, motor within housing 15 causes axle 22 to spin in an opposite direction thus enabling spool 23 to pay out heavy duty strapping as needed.
As noted previously, devices of this type generally include, within their mounting plates, various holes for permanently retaining the device to a side wall or similar support positioned proximate the cargo area. This not only defaces the cargo area but also limits the flexibility of the device as its repositioning is either cumbersome or impossible carry out.
The present invention solves this impediment by providing magnet 25 (
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It is further noted that a motor contained within housing 15 can be powered by running lines 9 (
Claims
1. A device for supplying heavy duty strapping for use in retaining cargo, said device comprising a housing, a two-way motor supported within said housing having a shaft for paying out, winding and storing said heavy duty strapping and a magnet affixed to said housing and sized to releaseably affix said device to a magnetically attractable support.
2. The device of claim 1 wherein said housing is releaseably affixed to said magnetically attractable support by said magnet proximate a cargo area for selectively paying out said heavy duty strapping for selectively retaining said cargo therein.
3. In the combination of a vehicle having a cargo area and a device for supplying heavy duty strapping whereby said device comprises a housing, two-way motor supported within said housing and a shaft for paying out, winding and storing said heavy duty strapping for selectively retaining cargo within said cargo area, the improvement comprising a magnet affixed to said housing and sized to releaseably affix said device to a magnetically attractable surface of said vehicle.
4. The combination of claim 3 wherein said motor is powered by said vehicle.
Type: Application
Filed: Feb 17, 2009
Publication Date: Aug 20, 2009
Inventor: Tom Donovan (Petaluma, CA)
Application Number: 12/372,551
International Classification: B61D 45/00 (20060101);