Plastic hinge for spectacles

Claim 2

A readily assembled hinge formed between a first hinge member and a second molded plastic hinge member which comprises: a. a first boss and second boss, each boss extending from a surface of the first hinge member, a first socket formed in the first boss and a second socket formed in the second boss, the second socket being coaxial with and located opposite to the first socket; b. a first pin arm and a second pin arm forming a part of the second molded plastic hinge member, the first pin arm and the second pin arm defining a slot therebetween, the first pin arm including a first pin means projecting therefrom, the second pin arm including a second pin means projecting therefrom, the first pin means being located in the first socket and the second pin means being located in the second socket; c. a pin arm locking bar integrally formed as a part of the second molded plastic hinge member, the pin arm locking bar being located within the slot defined by the pin arms and being attached to the second molded plastic hinge member by a flexible web; and, d. cooperative locking means locking the pin arm locking bar between the first and the second pin arms.

Claim 3

A readily assembled hinge formed between a first hinge member and a second molded plastic hinge member as defined in claim 1 wherein the cooperative locking means includes first means formed on the pin arms and second means formed on the pin arm locking bar.

Claim 4

In a spectacle comprising a frame and aT least one temple piece wherein the frame includes at least one frame hinge portion and the temple piece includes a molded plastic hinge end, the improvement which comprises: a. the hinge portion of the frame comprising a first hinge boss and a second hinge boss the first hinge boss having a first socket formed therein and the second hinge boss having a second socket formed therein, the second socket being coaxial with and located opposite to the first socket; b. the hinge end of the temple piece comprising a first pin arm, and a second pin arm, the first pin arm and the second pin arm defining a slot therebetween, the first pin arm including a first pin means projecting therefrom and extending into the first socket, the second pin arm including a second pin means projecting therefrom and extending into the second socket; c. a pin arm locking bar forming a part of the temple piece, the pin arm locking bar being located within the slot defined by the first pin arm and the second pin arm and being attached to the temple piece by a flexible web; and d. cooperative locking means formed on the first pin arm, the second pin arm and the pin arm locking bar.

Claim 5

In a spectacle comprising a frame and aT least one temple piece wherein the frame includes at least one frame hinge portion and the temple piece includes a molded plastic hinge end, the improvement which comprises: a. the hinge portion of the frame comprising a first hinge boss and a second hinge boss the first hinge boss having a first socket formed therein and the second hinge boss having a second socket formed therein, the second socket being coaxial with and located opposite to the first socket; b. the hinge end of the temple piece comprising a first pin arm, and a second pin arm, the first pin arm and the second pin arm defining a slot therebetween, the first pin arm including a first pin means projecting therefrom and extending into the first socket, the second pin arm including a second pin means projecting therefrom and extending into the second socket; c. a pin arm locking bar forming a part of the temple piece, the pin arm locking bar being located within the slot defined by the first pin arm and the second pin arm and being attached to the temple piece by a flexible web; and d. cooperative locking means formed on the first pin arm, the second pin arm and the pin arm locking bar.

Claim 6

A spectacle as defined in claim 3 wherein a web connects the first boss and the second boss; the web serving to restrict the angular motion of the temple piece with respect to the frame.

Claim 7

A spectacle as defined in claim 3 wherein the pin arms are formed in a flared position with respect to the first and second hinge bosses, such that when the first and second pin means are located within their respective sockets there is frictional engagement between contacting surfaces of the pin arms and the first and second hinge bosses.

Claim 8

A spectacle as defined in claim 3 wherein the cooperative locking means includes first locking means formed on the pin arms and second locking means formed on the pin arm locking bar.

Claim 9

A spectacle as defined in claim 6 wherein the first locking means formed on the pin arms comprises protuberances thereon and the second locking means comprises depressions formed on the pin arm locking bar.

Claim 10

A spectacle which comprises: a. a frame including a hinge portion, the hinge portion comprising a first hinge boss extending in an approximate perpendicular direction from the surface of the frame, a second hinge boss approximately parallel to the first hinge boss, the first boss having a socket facing the second boss, the second boss having a socket coaxial with and facing the first boss; b. a temple piece including a hinge end, the hinge end comprising a first pin arm and a second pin arm, the first pin arm and the second pin arm defining a slot therebetween, the first pin arm including hinge pin means extending outwardly therefrom and engaged in the socket in the first hinge boss, the second pin arm including hinge pin means extending outwardly therefrom and engaged in the socket in the second hinge boss; c. a pin arm locking bar forming a part of the temple piece, the pin arm locking bar being located within the slot defined by the first pin arm and the second pin arm, and being attached to the temple by a web of the material from which the temple bar and the pin arm locking bar is made, the web being thin enough to be flexible; and d. cooperative locking means locking the pin arm locking bar between the pin arms, the locking means comprising interlocking protuberances formed on the pin arms and depressions formed on the pin arm locking bar.

Claim 11

A spectacle which comprises: a. a frame including a hinge portion, the hinge portion comprising a first hinge boss extending in an approximate perpendicular direction from the surface of the frame, a second hinge boss approximately parallel to the first hinge boss, the first boss having a socket facing the second boss, the second boss having a socket coaxial with and facing the first boss; b. a temple piece including a hinge end, the hinge end comprising a first pin arm and a second pin arm, the first pin arm and the second pin arm defining a slot therebetween, the first pin arm including hinge pin means extending outwardly therefrom and engaged in the socket in the first hinge boss, the second pin arm including hinge pin means extending outwardly therefrom and engaged in the socket in the second hinge boss; c. a pin arm locking bar forming a part of the temple piece, the pin arm locking bar being located within the slot defined by the first pin arm and the second pin arm, and being attached to the temple by a web of the material from which the temple bar and the pin arm locking bar is made, the web being thin enough to be flexible; and d. cooperative locking means locking the pin arm locking bar between the pin arms, the locking means comprising interlocking protuberances formed on the pin arms and depressions formed on the pin arm locking bar.