Method for manufacturing a resilient hinge device for spectacles, device obtained by the method, and spectacles comprising said device

A method for manufacturing a resilient hinge device for connecting the arms to a front frame of a mounting for spectacles, the device including a first and a second hinge member which are pivotable about a hinge axis (X), and resilient return means between said hinge members, the method comprising the steps of:

• providing a box-like body open at a first and a second end thereof, axially opposed to one another,
• providing a slider member having a part formed with an eye or hinge pin,
• providing at least one resilient member and retaining same in a seat provided on the slider,
• inserting the slider into the box-like body from the opening of said first end of the box-like body, with the part of the slider having the eye protruding outside said body through the opening provided in the second, opposed end of said body, said resilient member being located by the box-like body at the second end,
• providing auxiliary retaining means that are active between the slider and the body for retaining the slider part equipped with said resilient member in a position completely inserted into the body, counter to the resilient action exerted by said resilient member,
• housing said box-like body in a respective blind cavity provided in the front frame of the mounting,
• firmly connecting the box-like body to the frame such that said body is rigidly fixed in position, at least partially embedded in the front frame of the mounting, the part of the slider having the eye constituting one of said hinge members of the device, and disengaging said auxiliary retaining means.

A resilient hinge device for connecting arms to a front frame of a mounting for spectacles, the device comprising:

• first and second hinge members pivotable about a hinge axis (X), and resilient return means between said hinge members,
• a box-like body open at first and second ends which are axially opposed to one another,
• a slider member having a part formed with an eye or hinge pin,
• at least one resilient member in a seat in the slider,
• the slider being in the box-like body and extending from the opening of said first end of the box-like body, with the part of the slider having the eye protruding outside said body and through the opening provided in the second, opposed end of said body, said resilient member being located by the box-like body at the second end,
• a closure member for the box-like body and disposed at said first end such that the slider is retained so as to be slidably guided in the box-like body and is also displaceable relative to the box-like body counter to the resilient action exerted by said resilient member, and
• the part of the slider having the eye being one of said hinge members of the device.

Spectacles comprising:

• a front mounting frame, respective arms, and at least one resilient hinge device for connecting the arms to the front frame in an articulated manner, the resilient hinge device including:
• first and second hinge members which are pivotable about a hinge axis (X), and resilient return means between said hinge members,
• a box-like body open at first and second ends which are axially opposed to one another,
• a slider member having a part formed with any eye or hinge pin,
• at least one resilient member in a seat provided in the slider,
• the slider being in the box-like body and extending from the opening of said first end of the box-like body, with the part of the slider having the eye protruding outside said body and through the opening provide in the second, opposed end of said body, said resilient member being located by the box-like body at the second end,
• a closure member for the box-like body and disposed at said first end, such that the slider is retained so as to be slidably guided in the box-like body and is also displaceable relative to the box-like body counter to the resilient action exerted by said resilient member,
• said box-like body being housed in a respective blind cavity in the front mounting frame, with said closure member facing a bottom of the cavity, and
• the box-like body connected to the frame such that said body is rigidly fixed in position, at least partially embedded in the front mounting frame, the part of the slider having the eye being one of said hinge members of the resilient hinge device.