Prefabricated cabin, method for building cabin and support leg of cabin

1 . A prefabricated cabin for being transported to an installation site, the prefabricated cabin comprising:

a cabin box comprising walls surrounding an interior of the cabin box; and

support legs below corners of the cabin box configured for supporting the cabin box on top of the support legs, wherein the support legs are fixed to the cabin box, the cabin box being liftable and lowerable as one unit to stand on the support legs in a desired place;

wherein one or more of said support legs comprises:

a first horizontal metal plate placed below the cabin box and supporting the cabin box on top of the first horizontal metal plate; and

a second horizontal metal plate configured for being placed against a supporting base, the second horizontal metal plate being at a distance below the first horizontal metal plate; and

one or more metal pillars between said first and second horizontal metal plates and connecting said first and second horizontal metal plates fixedly to each other,

wherein the one or more metal pillars include two metal pillars between said first and second horizontal metal plates connecting the first and second horizontal metal plates fixedly to each other, and

wherein the two metal pillars are spaced apart, an opening extending horizontally through each support leg of the support legs between the two metal pillars.

2 . The prefabricated cabin according to claim 1 , wherein the first horizontal metal plate of the one or more of said support legs is fixed to a first log end of a first horizontal log of the cabin box and to a second log end of a second horizontal log of the cabin box, wherein the first and second horizontal logs are at an angle relative to each other.

3 . The prefabricated cabin according to claim 1 , wherein a first log end of a first horizontal log rests on a first upper support face portion of the first horizontal metal plate and a second log end of a second horizontal log rests on a second upper support face portion of the first horizontal metal plate.

4 . The prefabricated cabin according to claim 1 , wherein the one or more of said support legs comprises a first lateral support and positioning member for a first log end to be fixed on the first horizontal metal plate, and a second lateral support and positioning member for a second log end to be fixed on the first horizontal metal plate, wherein the first and second lateral support and positioning members protrude upwards from the first horizontal metal plate.

5 . The prefabricated cabin according to claim 4 , wherein the first lateral support and positioning member is fixed to the first log end and the second lateral support and positioning member is fixed to the second log end, the first and second lateral support and positioning members being in an inner corner formed between the first log end and the second log end.

6 . The prefabricated cabin according to claim 1 , wherein the two metal pillars are vertical metal plates.

7 . The prefabricated cabin according to claim 1 , wherein the two metal pillars are vertical metal plates at an angle relative to each other.

8 . The prefabricated cabin according to claim 1 , wherein vertical projections of the two metal pillars are within vertical projections of the adjacent walls, such that the vertical projection of one of the two metal pillars is within the vertical projection of a first log end, and the vertical projection of the other of the two metal pillars is within the vertical projection of a second log end.

9 . The prefabricated cabin according to claim 1 , wherein each of the one or more of said support legs is below only one respective corner of the cabin box.

10 . A method of building a cabin, comprising:

providing a prefabricated cabin according to claim 1 ; and

placing the prefabricated cabin to stand on the support legs on top of a supporting base of a transport platform or of a transport container; and

moving the transport platform or the transport container to proximity of an installation site; and

placing the prefabricated cabin to stand on a supporting base of the installation site.

11 . The method according to claim 10 , wherein the providing a prefabricated cabin comprises:

providing logs;

placing support legs on a base of a factory; and

placing the logs on the support legs, such that they rest on the first horizontal metal plates of the legs; and

fixing the logs on the support legs; and

piling further logs on the logs fixed to the support legs.

12 . The method according to claim 11 , wherein said placing logs on the support legs is performed such that:

a first log end of a first log rests on a first upper support face portion of the first horizontal metal plate and a second log end of a second log rests on a second upper support face portion of the first horizontal metal plate; and/or

the first log end of the first log rests beside a first support and positioning member and a second log end of a second log rests beside a second support and positioning member of the support leg.