Cargo securement, cargo shift stop
A pallet or piece of freight on a surface such as the floor of a dry van or flat bed trailer, will shift or move while in transit. The cargo shift stops will prevent the movement of the pallet or freight much like a door stop that holds open an opened door.
This invention relates to moving freight by all modes of transportation. This invention will prevent movement or shifting of freight or cargo, in or on a vessel, while in transit, and thus prevent damage to the freight and equipment being used to move the freight from one point to another.
II BACKGROUND OF THE INVENTIONSince freight has been moved by containers in trucks, trains, boats and aircraft, there has been a problem of freight moving or shifting while the freight is in transport. This movement is due to the surface on which the freight is being transported on, in combination with the movement of the vehicle in which the freight is being transported. With the stopping, starting, turning, and yawing of the vehicle, the freight being transported will slide or tip when a change in direction of the vehicle takes place.
Depending on the severity of the event, this dynamic will cause the freight to come in contact with other freight on the same vessel, or with the waklls of the container, or will cause the freight to leave the vessel. This constitutes a great danger to people and equipment in it's proximity.
Current methods of restraint for cargo require the use of straps to hold the cargo into place, or blocking material nailed to the floor to stop the pallet or piece of freight from moving. Other forms of restraint include the placement of horizontal retaining bars from one side of the trailer to the other that prevents the forward movement of the freight. This movement can damage the flooring of freight vessel over time
III SUMMARY OF THE INVENTIONA: Objects of the Invention
One object of this invention is to limit the travel of freight or cargo to a point where it does not move beyond specified points. The will prevent damage to the freight when it comes into contact with other freight on the floor or platform on which it is transported.
Another object of the invention is to prevent a catastrophic outcome of heavy freight shifting on the floor or platform. Whether this be over the road transport or air transport, these extreme weight shifts can cause the operator to loose control of the vehicle.
Another object of the invention is to prevent the overloading of an axle of a dry van or flat bed trailer. State and Federal laws allow certain maximum weights on the axles of these trailers which can be exceeded when the cargo shifts forward due to a hard braking event.
Another object of the invention is to substantially reduce the amount of labor required to utilize existing methods cargo restraint. This includes the nailing or blocking of wood or other material to the floor or platform.
Another object of this invention is to reduce or eliminate the need to carry or stock materials and supplies to secure the cargo.
B. Summary of the Invention
In one embodiment this invention may be installed in the floor of a cargo vessel, such as a dry van or flat bed trailer pulled by a semi truck. When installed in the floor of trailer, be it metal or wood, it may be a retractable, floor protruding assembly, when installed as a system, will stop the movement of the freight as it tries to move across the floor of the cargo vessel. When not needed, the plunger or the entire device may be retracted and secured inside the floor.
This invention is not limited to the installation in a dry van or flat bed trailer. Other application areas include rail cars, cargo ships, airplanes, cargo transport platforms, and barges. This device will work on any surface upon which it can be installed.
This device can also be used on surfaces that are not part of a cargo vessel. This device can be installed on any surface in which movement from some outside force is not desired. This includes warehouse buildings, floors, and dock areas.
Other objects will be apparent from the following SUMMARY, DESCRIPTION OF PREFERRED EMBODIMENTS, DRAWINGS AND CLAIMS.
B: Summary
In accordance with one embodiment of the invention, a collar or plunger is recessed into an existing floor or platform. The collar or plunger version can be installed as new equipment, or be retrofitted to older floors and platforms.
In accordance with another embodiment of the invention, the plunger is part of a strip of metal or composite material recessed into the flooring material. It can be installed as new OEM equipment or can be retrofitted to older floors or platforms.
IV THE DRAWINGS
Several factors come into play when the size of a particular embodiment is determined. The material used to produce the embodiment may be steel, aluminum alloy or any of the known composite materials. The size of the embodiment will depend highly on the strength of the material used and or the application in which it is used.
When the plunger 10 is rotated in the opposite direction, the key 50 on the side of the plunger 10 will move into the primary keyed slot 40 in the side of the collar 5 and will lock in the active position shown in
In
They are then secured to the trailer or frame of the trailer in a way engineered for that particular trailer or flooring platform. For example, the stop strips 100 are set longitudinally or parallel to the floorboards and secured into place. This version allows for ease of replacement of the stop strips or removal of the device if they are no longer needed in the application.
In another embodiment shown in
In another embodiment shown in
However, in another embodiment 280 the stop strips 100 and/or 200 are installed between all of the floorboards to produce a better effect.
In another embodiment 290,
In another embodiment
In another embodiment
Claims
1. A cargo shift stop assembly comprising:
- a stop having an outside collar;
- a plunger located inside said collar; and
- fastening means located in said collar to secure the stop to a structural support.
2. A cargo shift stop assembly according to claim 1 wherein said fastening means comprise screw holes.
3. A cargo shift stop assembly according to claim 1 wherein slots in the top of the plunger are used to rotate said plunger.
4. A cargo shift stop assembly according to claim 1 wherein said device is made without screw holes in said collar.
5. A cargo shift stop assembly according to claim 1 wherein said device is adapted to be inserted directly into a hole in the floor surface.
6. A cargo shift stop assembly according to claim 1 wherein at least one spring is recessed into the bottom of said plunger.
7. A cargo shift stop assembly according to claim 6 wherein said spring is mounted in the flooring of a typical flatbed or dry van trailer
8. A cargo shift stop assembly according to claim 7 wherein said spring is mounted on top of one of the cross members in siad flatbed or dry van trailer.
9. A cargo shift stop assembly according to claim 8 wherein at least one key slot is provided in said collar.
10. A cargo shift stop assembly according to claim 9 wherein a pair of key slots are provided in said collar for a pair of cooperating keys.
11. A cargo shift stop assembly according to claim 1 wherein a tapered bottom is provided in said plunger.
12. A cargo shift stop assembly according to claim 11 wherein said tapered bottom in operation stops said plunger at a pre-determined height.
13. A cargo shift stop assembly comprising:
- a plurality of cargo shift stops mounted in a strip of solid material adapted to be recessed into a preexisting floor.
14. A cargo shift stop assembly according to claim 11 wherein said strip is made of a material selected from steel, aliminum alloy, and composite material and combinations thereof.
15. A cargo shift stop assembly according to claim 14 wherein said strips are mounted in a transportation vehicle.
16. A cargo shift stop assembly according to claim 15 wherein said strips are mounted continuous from the front to the rear,
17. A cargo shift stop assembly according to claim 15 wherein said strips are mounted continuous longitudinally from the front to the rear,
18. A cargo shift stop assembly according to claim 15 wherein said strips are mounted continuous transversely from the front to the rear.
- typical dry van trailer, or other floor, the floorboards are continuous from the front to the rear, or are longitudinal from the front to the rear.
19. A cargo shift stop assembly according to claim 15 wherein said strips are laid side by side next to each over cross-members of the floor.
20. A cargo shift stop assembly according to claim 15 wherein said strips are laid in a way engineered for that particular trailer or flooring platform.
21. A cargo shift stop assembly according to claim 20 wherein said strips are laid longitudinally or parallel to the floorboards and secured into place.
22. A cargo shift stop assembly according to claim 21 wherein said strips recessed into said stop strip.
23. A cargo shift stop assembly according to claim 22 wherein said strips are formed with keyed slots in the wall of the hole the stop strip.
24. A cargo shift assembly comprising:
- a sliding stop strip having tabs on said sliding strip; whereby as said sliding stop strip is moved forward or backward, said tabs on said stop strip activate and deactivate a plunger into active and passive positions.
25. A cargo shift stop assembly according to claim 24 wherein said sliding stop strip is made of a material selected from lightweight metal and composite material and is
26. A cargo shift stop assembly according to claim 25 wherein said sliding stop strip material is durable enough to last the normal life of the transport vessel.
Type: Application
Filed: Jun 10, 2005
Publication Date: Dec 14, 2006
Inventor: Greg Becker (Foristell, MO)
Application Number: 11/149,559
International Classification: B61D 3/16 (20060101);