Temple bar assembly for eyeglasses
View Patent ↗A temple bar assembly for eyeglasses is provided having several adjustable members wherein all of the joints are formed by utilizing in-mold-assembly techniques to reduce the assembly steps required to form such a temple bar assembly. The temple bar assembly includes at least one of the following adjustment points: temple length, inclination angle and/or hinge attachment all formed using IMA while further resulting in a temple bar that has increased adjustability and utility. Also, the materials selected may include either hard or soft plastics to form either component.
1. A method of manufacturing a temple bar assembly for eyeglasses comprising the steps of:
providing a mold cavity having a first profile;
filling said mold cavity with a first polymer to form a ratchet body having a first end and a second end opposite said first end, said first end configured to be received and retained by said eyeglasses, said second end configured as a first half of a hinge;
removing a first portion of said mold cavity with said ratchet body remaining within said mold cavity, said portion being adjacent said second end of said ratchet body;
replacing said removed first portion of said mold cavity with a second mold cavity having a second profile;
filling said second mold cavity with a second polymer to form a hinge body having a first end and a second end opposite said first end, said first end being formed in engaged relation with said second end of said ratchet body and configured as a second half of said hinge, said second end of said hinge body extending rearwardly from said first end defining a neck portion;
removing a third portion of said mold cavity with said ratchet body and said hinge body remaining within said mold cavity, said portion being adjacent said neck portion of said hinge body;
replacing said removed third portion of said mold cavity with a fourth mold cavity having a fourth profile; and
filling said fourth mold cavity with a third polymer to form a cable member in engagement with said neck portion, wherein said temple bar assembly is a completed assembly upon removal from the mold cavity, wherein said hinge body is pivotable around a vertical axis relative to said ratchet body and said cable member is slidable in a linear manner relative to said hinge body.
2. The method of forming a temple bar assembly of claim 1 , wherein said first and second polymers are a hard polymer and said third polymer is an elastomer.
3. The method of forming a temple bar assembly of claim 1 , wherein said first, second and third polymers are all a hard polymer.
4. The method of forming a temple bar assembly of claim 1 , further comprising the steps of:
removing said completed assembly from said mold cavity; and
articulating said hinge body relative to said ratchet body and articulating said cable member relative to said hinge body to ensure that said hinge body, said ratchet body and said cable member are not bonded to one another.
5. A method of manufacturing a temple bar assembly for eyeglasses comprising the steps of:
providing a mold cavity having a first profile;
filling said mold cavity with a first polymer to form a first member having a first end and a second end opposite said first end;
removing a first portion of said mold cavity with said first member remaining within said mold cavity, said portion being adjacent said second end of said first member;
replacing said removed first portion of said mold cavity with a second mold cavity having a second profile;
filling said second mold cavity with a second polymer to form a second member having a first end and a second end opposite said first end, said first end being formed in engaged relation with said second end of said first member;
removing a third portion of said mold cavity with said first and second members remaining within said mold cavity, said portion being adjacent said second end of said second member;
replacing said removed third portion of said mold cavity with a fourth mold cavity having a fourth profile; and
filling said forth mold cavity with a third polymer to form a third member in engagement with said second end of said second member, wherein said temple bar assembly is a completed assembly upon removal from the mold cavity.
6. The method of manufacturing a temple bar assembly of claim 5 , wherein said first member is a hinge body, said second member is a ratchet body and said third member is a cable member, said ratchet body being pivotable around a horizontal axis relative to said hinge body to a plurality of predetermined positions, wherein the angle of inclination between said ratchet body and said hinge body can be adjusted, said cable member being slidable in a linear manner relative to said ratchet body, wherein the overall length of said temple bar can be adjusted.
7. The method of manufacturing a temple bar assembly of claim 6 , wherein said first end of said hinge body is received and retained in an eyeglass assembly wherein said temple bar is pivotable around a vertical axis relative to said eyeglass assembly.
8. The method of manufacturing a temple bar assembly of claim 5 , wherein said first member is a ratchet body, said second member is a hinge body and said third member is a cable member, said hinge body being pivotable around a vertical axis relative to said ratchet body, said cable member being slidable in a linear manner relative to said hinge body, wherein the overall length of said temple bar can be adjusted.
9. The method of manufacturing a temple bar assembly of claim 8 , wherein said first end of said ratchet body is received and retained in an eyeglass assembly wherein said temple bar is pivotable around a horizontal axis relative to said eyeglass assembly to a plurality of predetermined positions, wherein the angle of inclination between said temple bar and said eyeglass assembly can be adjusted.