Kit of parts for simplified assembly of a heavy vehicle and assembly method

An assembly, comprising:

• a first part including an alignment member pivotable around a pivot axis, a circumference of the alignment member around the pivot axis having a first portion with a first surface profile and a second portion with a convex second surface profile;
• and
• a second part including an alignment structure having a first portion with a first surface profile being complementary to the first surface profile of the alignment member of the first part, and a second portion with a convex second surface profile;
• the first portion of the alignment structure of the second part being aligned with the first portion of the alignment member of the first part, and the second portion of the alignment structure of the second part making point contact with the second portion of the alignment member of the first part.

An assembly method, comprising:

• providing a first part including an alignment member pivotable around a pivot axis, a circumference of the alignment member around the pivot axis having a first portion with a first surface profile and a second portion with a convex second surface profile;
• providing a second part including an alignment structure having a first portion with a first surface profile being complementary to the first surface profile of the alignment member of the first part, and a second portion with a convex second surface profile being arranged and configured to make point contact with the second portion of the alignment member of the first part, when the first portion of the alignment structure is aligned with the first portion of the alignment member of the first part;
• reducing a distance between the first part and the second part in such a way that the alignment member of the first part and the alignment structure of the second part make initial contact;
• and
• pushing the first part and the second part together until the first portion of the alignment structure of the second part becomes aligned with the first portion of the alignment member of the first part, and the second portion of the alignment structure of the second part makes point contact with the second portion of the alignment member of the first part.