Screw-less rim lock and hinge eyewear and assembly method therefor

An eyeglass frame comprising:

• (a) a pair of glass-holding rims (1), each said rim (1) is characterized with:
• an inner region and
• an outer region;
• said rims (1) are joined with each other through the inner regions thereof;
• each said rim (1) has a rim slit (5) in the outer region thereof;
• (b) a pair of endpieces (2) made of a predeterminedly flexible material and angularly coupled to each said rim (1) in the outer region thereof;
• said endpiece (2) each includes:
• (b1) an essentially flat body characterized with:
• longitudinal edges,
• a proximal section adjacent to the rim (1),
• a distal section remote from the rim (1), and
• a middle section, located between said proximal section and said distal section;
• said flat body includes a solid part (9) in the distal section;
• said flat body is longitudinally split:
• within the proximal section, by forming an essentially straight line slit connected to said rim slit (5), and
• within the middle section, by forming a curvilined slit (7) and a window (8);
• wherein said straight line slit, the curvilined slit (7), and the window (8) are sequentially connected making a common split through the proximal and middle sections;
• and
• (b2) an upper hinge loop (6) and a lower hinge loop (6) angularly coupled to the opposite longitudinal edges of said flat body in the proximal section thereof;
• (c) a pair of joint clamps (3) each having a longitudinal axis, a proximal end being proximate to said rim (1), and a distal end being remote from said rim (1);
• said joint clamp (3) includes:
• a window (11) and a groove (19);
• said joint clamp (3) is capable of operatively externally sliding along the longitudinal edges of said endpiece (2) until said joint clamp (3) is stopped by the hinge loops (6), and the window (11) essentially coincides with the window (8);
• (d) a pair of temples (4) each made of a predeterminedly flexible material, and characterized with a proximal portion being proximate to said rim (1);
• the proximal portion of said temple (4) includes:
• an upper prong (13.1) with a strip-like shape,
• a middle prong (13.2), and
• a lower prong (13.3) with a strip-like shape;
• wherein:
• the upper prong (13.1) and the lower prong (13.3) have an equal length and are furnished with outer protrusions (14) coupled thereto;
• the upper prong (13.1) and the lower prong (13.3) side-wise diverge from the upper prong (13.1) and the lower prong (13.3) in the direction toward said rim (1), thereby forming a widening V-shape with a predetermined diverging angle;
• said outer protrusions (14) are configured to operatively engage with the upper hinge loop (6) and the lower hinge loop (6) during the assembling of said eyeglass frame;
• the upper prong (13.1) and the lower prong (13.3) are spaced from the middle prong (13.2) by recessions (18);
• the middle prong (13.2) is longer than the upper prong (13.1) and the lower prong (13.3);
• the middle prong (13.2) includes:
• a strip-shaped portion most remote from said rim (1), the strip-shaped portion is situated between the upper prong (13.1) and the lower prong (13.3);
• a Z-shaped bent portion (17) connected to said strip-shaped portion, said Z-shaped bent portion (17) provides for a step-up forward bend;
• a tongue portion (16) having a first end connected to the Z-shaped bent portion (17) and a second end;
• and
• a tip (15) connected to the second end of said tongue portion (16);
• said joint clamp (3) is capable of operatively sliding between the recessions (18);
• and
• the tongue portion (16) and the tip (15) are configured to operatively engage with the window (11), the window (8);
• and the groove (19) is configured to receive a fraction of the middle prong (13.2).