Method of an apparatus for bend-shaping a glass plate and bending mold used for them

An apparatus for bend-shaping a glass plate into a predetermined shape wherein a side portion of the glass plate is deeply bent, which comprises:

• a bending mold comprising a fixed split mold portion having a bend-shaping surface which corresponds to an intermediate curved portion of the glass plate, and at least one movable split mold portion which has a bend-shaping surface corresponding to the side portion of the glass plate, said at least one movable split mold portion having a predetermined shape and being plated at a side of said fixed split mold portion with said bend-shaping surface being movable around a pivotal shaft for movement into alignment with the bend-shaping surface of said fixed split mold portion, wherein said pivotal shaft of the bending mold is positioned further from said fixed split mold portion than is said bend-shaping surface of said movable split mold portion, such that a moment of force at the pivotal shaft which acts on the movable split mold portion at the time of press-shaping prevents the bending mold from moving out of alignment during press-shaping, and
• an auxiliary pressing member positioned vertically movable above the portion of said bending mold where the glass plate to be deeply bent is placed.

A bending mold to receive thereon a glass plate and to bend-shape by heating the glass plate into a predetermined shape, which comprises:

• a fixed split mold portion having a bend-shaping surface which corresponds to an intermediate curved portion of the glass plate and at least one movable split mold portion which has a bend-shaping surface corresponding to the side portion of the glass plate, said at least one movable split mold portion having a predetermined shape and being placed aside of said fixed split mold portion with said bend-shaping surface being movable around a pivotal shaft for movement into alignment with the bend-shaping surface of said fixed split mold portion, wherein said pivotal shaft is positioned further from said fixed split mold portion than is said bend-shaping surface of said movable split mold portion when the bending mold is viewed from above.