Laminated glazing

A method of making a laminated glazing for installing in a vehicle at an installation angle θ to the vertical, the laminated glazing having a thickness in millimetres of d and comprising a first sheet of glazing material laminated to a second sheet of glazing material via at least one adhesive sheet,

• the first and second sheets of glazing material each having a major surface with a respective geometric centre;
• the method comprising
• (i) transporting a first sheet of glazing material in a first direction between a complementary pair of moulding members comprising a first shaping member and a second shaping member, the first shaping member having a least one concave portion and being a ring mould or a full surface contact mould and the second shaping member being a full surface contact shaping member having a corresponding complementary convex portion;
• (ii) stopping the first sheet of glazing material such that the first sheet of glazing material is stopped at a first position for bending between the pair of moulding members, wherein the geometric centre of the first sheet of glazing material is aligned with a reference point on the second shaping member;
• (iii) shaping the first sheet of glazing material between the pair of moulding members;
• (iv) transporting the first sheet of glazing material away from between the pair of moulding members;
• (v) transporting a second sheet of glazing material between the pair of moulding members;
• (vi) stopping the second sheet of glazing material such that the second sheet of glazing material is stopped at a second position for bending between the pair of moulding members, wherein the geometric centre of the second sheet of glazing material is offset from the same reference point on the second shaping member,
• (vii) shaping the second sheet of glazing material between the pair of moulding members,
• (viii) transporting the second sheet of glazing material away from between the pair of moulding members;
• and
• (ix) using suitable lamination conditions to laminate the first sheet of glazing material to the second sheet of glazing material via at least one adhesive sheet;
• wherein steps (ii) and (iii) take place before steps (vi) and (vii),
• wherein in step (vi), the geometric centre of the second sheet of glazing material is offset from the same reference point on the second shaping member by a lateral displacement in a direction perpendicular to the first direction and/or by a longitudinal displacement in a direction parallel to the first direction,
• wherein θ is between 20° and 80°, further wherein the lateral displacement and/or the longitudinal displacement is between
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A method of making a laminated glazing for installing in a vehicle at an installation angle θ to the vertical between 20° and 80°, the laminated glazing having a thickness in millimetres of d and comprising a first sheet of glazing material laminated to a second sheet of glazing material via at least one adhesive sheet,

• the first and second sheets of glazing material each having a major surface with a respective geometric centre;
• the method comprising
• (i) transporting a first sheet of glazing material in a first direction between a complementary pair of moulding members comprising a first shaping member and a second shaping member, the first shaping member having a least one concave portion and being a ring mould or a full surface contact mould and the second shaping member being a full surface contact shaping member having a corresponding complementary convex portion;
• (ii) stopping the first sheet of glazing material such that the first sheet of glazing material is stopped at a first position for bending between the pair of moulding members, wherein the geometric centre of the first sheet of glazing material is aligned with a reference point on the second shaping member;
• (iii) shaping the first sheet of glazing material between the pair of shaping members;
• (iv) transporting the first sheet of glazing material away from between the pair of moulding members;
• (v) transporting a second sheet of glazing material between the pair of moulding members;
• (vi) stopping the second sheet of glazing material such that the second sheet of glazing material is stopped at a second position for bending between the pair of moulding members, wherein the geometric centre of the second sheet of glazing material is offset from the same reference point on the second shaping member by a lateral displacement in a direction perpendicular to the first direction and/or by a longitudinal displacement in a direction parallel to the first direction,
• (vii) shaping the second sheet of glazing material between the pair of moulding members,
• (viii) transporting the second sheet of glazing material away from between the pair of moulding members;
• and
• (ix) using suitable lamination conditions to laminate the first sheet of glazing material to the second sheet of glazing material via at least one adhesive sheet;
• wherein steps (ii) and (iii) take place before steps (vi) and (vii);
• wherein in step (ii) stopping of the first sheet of glazing material at the first position for bending is performed with a longitudinal tolerance in a direction parallel to the first direction, such that when the first sheet of glazing material is stopped at the first position for bending, the geometric centre of the first sheet of glazing material is aligned with the reference point on the second shaping member to within the longitudinal tolerance;
• and
• wherein in step (ii) stopping of the first sheet of glazing material at the first position for bending is performed with a lateral tolerance in a direction perpendicular to the first direction, such that the first sheet of glazing material is stopped at the first position for bending, the geometric centre of the first sheet of glazing material is aligned with the reference point on the second shaping member to within the lateral tolerance;
• wherein the lateral displacement is greater than a magnitude of the lateral tolerance and/or the longitudinal displacement is greater than a magnitude of the longitudinal tolerance.