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An interchangeable platform that encompasses side beams at the sides and at least one support structure, with what the side beams are fastened to each other. Side beams are into sideways direction, perpendicular to the longitudinal direction, at least partially open and closed from up and down and t

An interchangeable platform that encompasses side beams at the sides and at least one support structure, with what the side beams are fastened to each other. Side beams are into sideways direction, perpendicular to the longitudinal direction, at least partially open and closed from up and down and they have an upside-down G-profile. An interchangeable platform encompasses at least one longitudinal guide. The interchangeable platform can be guided by the guide to the transport device, can be locked by side beams to the transport device and load fastening equipment can be fastened to side beams. Additionally a transport device that encompasses side guides.

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1. A transport device, that is arranged to be moveable in a first direction forward, and which transport device comprises: a chassis, anda loading device to pull an interchangeable platform to the transport device in another direction that forms a sharp angle with the first direction, and which tran

1. A transport device, that is arranged to be moveable in a first direction forward, and which transport device comprises: a chassis, anda loading device to pull an interchangeable platform to the transport device in another direction that forms a sharp angle with the first direction, and which transport device is arranged to target a gravity support force to the interchangeable platform,wherein the transport device comprises an unloading device that is arranged to target in addition to the gravity support force to the interchangeable platform a force, of which direction forms an obtuse angle or straight angle with the first direction; in which case the transport device is arranged to unload the interchangeable platform from the transport device backwards along the transport device with the aid of the unloading device, the transport device further comprising an arm that is directed or can be directed into such direction that it belongs to a vertical plane encompassing a longitudinal direction of the transport device,a vertical hinge, by which the arm is arranged to pivot with reference to the chassis, so that a first end of the arm is arranged to be movable in relation to the chassis in a horizontal direction when the transport device is on a horizontal surface; in which case the interchangeable platform can be moved to the transport device and/or from the transport device in a direction that is not parallel with the first direction or opposite to the first direction,a tilt hinge, by which the arm is connected to the chassis, so that the first end of the arm is arranged to be movable in a vertical direction in relation to the chassis when the transport device is on the horizontal surface,a carrier movably attached to the arm,an arm latch configured to lock the carrier to the arm,an apparatus configured to couple the interchangeable platform to the carrier,fastening equipment to fasten the interchangeable platform to one or more of the loading device, an unloading device or a combined loading and unloading device,at least one winch to move the fastening equipment in a direction of the arm forward and backward,a loading reel, a loading cable, an unloading reel, and an unloading cable wherein reeling the loading cable on to the loading reel is configured to pull the interchangeable platform on to the transport device and reeling the unloading cable to the unloading reel is configured to pull the interchangeable platform from the transport device,at least one roll to guide the interchangeable platform and/or the cable; in which case the transport device is arranged to pull the interchangeable platform to the transport device and unload the interchangeable platform from the transport device backwards by a turning arm and winch, wherein the at least one roll is disposed behind the tilt hinge and attached to the arm,the interchangeable platform is configured to be lowered to the ground supported by the loading cable, andthe arm is configured to turn, while loading of the interchangeable platform, so that a distance between the interchangeable platform from a vertical plane including a longitudinal direction of the arm gets smaller. 2. A transport device according to claim 1, wherein the transport device comprises one common loading and unloading device, in which case the count of the summed loading and unloading device is one, which loading and unloading device is arranged to pull the interchangeable platform to the transport device and unload the interchangeable platform from the transport device. 3. A transport device according to claim 1, wherein the transport device comprises: equipment to fasten the interchangeable platform to the transport device andwherein the equipment comprises a ball;in which case the interchangeable platform, that can be connected to the transport device, can also be connected to other transport devices equipped with a ball. 4. A transport device according to claim 1, wherein the transport device comprises: a balance spring, like a gas spring, by which the arm is arranged at an angle in reference to the chassis, when the arm is affected by vertical force momentum that is less than the limit set by the balance spring. 5. A transport device according to claim 1, wherein the carrier includesa pusher, that is arranged to push the interchangeable platform off the roll. 6. A transport device according to claim 1, wherein the transport device comprises: equipment to control the winch andthe winch is arranged to be controlled by information about at least one of the following: an angle between the arm and the chassis,mass of the load anda momentum caused by the load and/or interchangeable platform and/or arm. 7. A transport device according to claim 1, wherein the loading reel and the unloading reel are arranged to rotate together into the same direction around the rotation axle,an unloading point of the loading cable at the loading reel is arranged to the first side of the rotation axle, andan unloading point of the unloading cable at the unloading reel is arranged to the another side, opposite, in reference to the rotation axle;in which case when the loading reel and the unloading reel are rotating, the first reel winds the cable to the first reel and the second reel unwinds the cable from the second reel. 8. A transport device according to claim 1, wherein the transport device encompasses a one way clutch, that allows the loading reel to rotate freely in reference to the unloading reel only to a certain first direction, but when the loading reel rotates into another opposite direction, it transmits the loading reel momentum to the unloading reel,which one way clutch is arranged in such a way, that while loading and while the loading reel is rotating, the momentum of the loading reel is not transmitted to the unloading reel;in which case all of the winch momentum can be used to pull the interchangeable platform when loading. 9. A transport device according to claim 1, wherein the transport device comprises: a friction clutch to slow down or to stop the rotation of the unloading reel, wherein the friction clutch is configured to affect the tension of the loading cable and the unloading cable. 10. A transport device according to claim 1, wherein the transport device is one of the following: a trailer intended to be used behind a vehicle,a trailer with fixed load carrying section intended to be used behind a vehicle,a trailer with a load carrying section that can be tilted intended to be used behind a vehicle,a vehicle with a fixed load carrying section, anda vehicle with a load carrying section that can be tilted. 11. A transport device according to claim 1, wherein the arm is directable such that, while unloading, the interchangeable platform is movable in the direction of the arm, wherein the direction forms an angle of at least 135 degrees with the first direction of the transport device. 12. A transport device according to claim 1, wherein the roll is arranged behind the tilt hinge. 13. A transport device according to claim 1, comprising a cross joint including the tilt hinge and the vertical hinge. 14. A transport device according to claim 1, wherein the apparatus configured to couple the interchangeable platform to the carrier comprises a latch and a limiter. 15. A transport device according to claim 1, wherein the apparatus configured to couple the interchangeable platform to the carrier is configured to lock the carrier to the arm to a location where a beam load to the transport device is matching. 16. A transport device according to claim 15, wherein the apparatus configured to couple the interchangeable platform to the carrier comprises a latch and a limiter.