| 主权项 |
1. A plurality of mass-produced identical multi-component housings, each of the housings comprising:
at least a first component comprising a first plastic material and having a first end and a second end opposite to the first end, a second component comprising a second plastic material, and a third component comprising a third plastic material, the at least first, second, and third components being joined together to form a substantially tubular structure having a longitudinal axis, a top end and a bottom end opposite to the top end, a length L parallel to the longitudinal axis and extending between the top end and the bottom end, and a maximal orthogonal dimension Dmax extending perpendicular to the longitudinal axis, wherein the length L of the housing is at least three times greater than the maximal orthogonal dimension Dmax extending perpendicular to the longitudinal axis; wherein each of the housings includes at least one tolerance-elimination element made of the second plastic material and attached to one of the first and second ends of the first component along the longitudinal axis, the tolerance-elimination element having a proximal end and a distal end opposite thereto, the proximal end being adjacent to at least one of the first and second ends of the first component, wherein the tolerance-elimination element has an average length H extending between the proximal end and the distal end parallel to the longitudinal axis, wherein the average length H is at least ten times less than the length L of the housing; wherein the third component at least partially forms an outer surface of the housing, so that the tolerance-elimination element is at least partially overmolded by the third plastic material; and wherein the tolerance-elimination elements of the plurality of multi-component housings are structured to cause lengthwise maximal dimension variations of the length L among the individual multi-component housings to be not greater than 0.1 mm. |
