Chassis for a vehicle and method for forming a chassis for a vehicle
The present invention relates to a chassis ( 10 ) for a vehicle comprising a plurality of sandwich plate elements ( 100 ) and a plurality of connection elements ( 200, 200′, 200 a - c ) for connecting said plurality of sandwich plate elements ( 100 ). Each connection element ( 200, 200′, 200 a - c ) comprises two or more recesses ( 210, 220 ) configured to receive an edge portion ( 160 ) of one of the plurality of sandwich plate elements ( 100 ). The plurality of connection elements ( 200, 200′, 200 a - c ) comprises at least one connection element ( 200′, 200 a - c ) which has at least one external surface ( 202 a - e ) provided with a connection configuration ( 250 a - e ) for a mortise and tenon type joint. A method ( 20 ) for forming a chassis ( 10 ) for a vehicle is also provided.
1. A chassis for a vehicle, the chassis comprising a plurality of sandwich plate elements and a plurality of connection elements for connecting said plurality of sandwich plate elements, wherein,
the sandwich plate elements each comprise a plate core and a first and second plate skin, wherein the first plate skin is arranged to at least partly cover a first major surface of the plate core, thereby forming a first major outer surface of the sandwich plate element, and the second plate skin is arranged to at least partially cover a second major surface of the plate core thereby forming a second major outer surface of the sandwich plate element, said first and second major outer surfaces being opposite to each other,
wherein each connection element comprises two or more recesses, each recess comprising a first and a second inner surface and being configured to receive an edge portion of one of the plurality of sandwich plate elements such that at least a portion of the first major outer surface of the sandwich plate element interacts with the first inner surface of the recess and at least a portion of the second major outer surface of the sandwich plate element interacts with the second inner surface of the recess, and
wherein the plurality of connection elements comprises at least one connection element which has at least one external surface provided with a connection configuration for a mortise and tenon type joint.
2. The chassis according to claim 1 , wherein the connection configuration comprises a slot of mortise type and/or a projection of tenon type.
3. The chassis according to claim 2 , wherein the slot and/or projection has a straight extension along the at least one external surface of said at least one connection element.
4. The chassis according to claim 2 , wherein the connection configuration comprises a plurality of slots of mortise type and/or projections of tenon type extending in parallel.
5. The chassis according to claim 1 , wherein the chassis further comprises at least one auxiliary element which is connectable to the at least one connection element by means of an outer surface which is provided with an auxiliary element connection configuration which is complementary to the connection configuration of the at least one connection element.
6. The chassis according to claim 5 , wherein the connection configuration comprises a slot of mortise type and/or a projection of tenon type and wherein the auxiliary element connection configuration is configured for cooperation with a single slot or projection of the connection configuration of the at least one connection element.
7. The chassis according to claim 5 , wherein the connection configuration comprises a slot of mortise type and/or a projection of tenon type and wherein the auxiliary element connection configuration is configured for cooperation with a plurality of slots and/or projections of the connection configuration of the at least one connection element.
8. The chassis according to claim 5 , wherein the at least one auxiliary element is a coupling element for attachment of an additional element to the chassis.
9. The chassis according to claim 5 , wherein the connection configuration and/or the auxiliary element connection configuration comprises a projection of tenon type which is provided with a groove extending in a longitudinal direction of the projection and configured to receive a locking member.
10. The chassis according to claim 1 , wherein a connection element is made of metal.
11. The chassis according to claim 1 , wherein the first and second plate skin of a sandwich plate element is made from a fibre-reinforced polymer material.
12. The chassis according to claim 1 , wherein the plate core of a sandwich plate element is made from a polymeric foam.
13. The chassis according claim 1 , wherein edge portions received in the recesses are bonded to the first and second inner surfaces of said recesses by an adhesive.
14. The chassis according to claim 1 , wherein the first and second major outer surfaces of the sandwich plate elements are at least partially parallel.
15. A method for forming a chassis for a vehicle, the method comprising:
providing a plurality of sandwich plate elements, each plate element comprising a plate core and a first and second plate skin, wherein the first plate skin is arranged to at least partly cover a first major surface of the plate core, thereby forming a first major outer surface of the sandwich plate element, and the second plate skin is arranged to at least partially cover a second major surface of the plate core thereby forming a second major outer surface of the sandwich plate element, said first and second major outer surfaces being opposite to each other,
providing a plurality of connection elements, each connection element comprising two or more recesses, each recess comprising a first and a second inner surface and being configured to receive an edge portion of one of the plurality of sandwich plate elements such that at least a portion of the first major outer surface of the sandwich plate element interacts with the first inner surface of the recess and at least a portion of the second major outer surface of the sandwich plate element interacts with the second inner surface of the recess, wherein the plurality of connection elements comprises at least one connection element which has at least one external surface provided with a connection configuration for a mortise and tenon type joint,
providing at least one auxiliary element which has an outer surface which is provided with an auxiliary element connection configuration which is complementary to the connection configuration of the at least one connection element,
arranging an edge portion of each of the plurality of sandwich plate elements into a recess of one of the plurality of connection elements, and
connecting the at least one auxiliary element to the at least one connection element by means of the auxiliary element connection configuration and the connection configuration of the at least one connection element.