Abstract: There is provided an attachment structure of a frame body relative to a front portion capable of attaching the frame body to the front portion with a simple construction, and also there is provided an attachment structure of a frame body relative to a front portion wherein stress or distortion of the frame body is hardly transmitted to the front portion. The attachment structure of a frame body relative to a front portion comprises a curved hooked portion formed on the frame body at the central position, and a groove portion defined in the front portion at the central position, wherein the curved hooked portion elastically presses the groove portion so as to engage the curved hooked portion in the groove portion. The frame body can be easily attached to or detached from the front portion with one-touch operation, and hence the operation is made with very ease, and further even if the frame body is distorted or deformed, the distortion is hardly transmitted to the front portion.

Abstract: A method of attaching front hook eyeglasses onto an eyeglasses body with safety without producing any play therebetween. The method comprises the steps of rendering a curvature of a front curve of the front hook eyeglasses larger than that of the eyeglasses body, attaching a central portion of the front hook eyeglasses onto a central portion of the eyeglasses body, and bringing both ends of the front hook eyeglasses into elastically contact with the eyeglasses body. Vertical or horizontal motion (vertical and horizontal displacement) of the front hook eyeglasses or back and forth motion of the front hook eyeglasses are controlled or restrained.

Abstract: A bridge of rimless glasses is fixed to lenses in a state where it is prevented from being deformed or varied by deformation prevention members, and a fixing portion between the bridge and lenses is not deformed, and hence the fixation at the fixing portion is ensured, thereby enhancing durability. Superelastic metallic material can be directly used by the bridge as the rimless eyeglasses. The bridge of rimless glasses is formed of a superelastic metallic material, and the bridge is fixed to the lenses by way of deformation prevention members. The deformation prevention members have pad arms and fixing bolts fixed thereto. The bolts are inserted into holes bored in the lenses. The pad arms have fitting portions fitted in recesses defined in the lenses.

Abstract: A turning method and a turning mechanism in eyeglasses capable of turning a temple with respect to a bracket with a simplified mechanism without using joints or bolts. The turning mechanism comprises a bracket having a main trunk and a hook, and a temple being turnable with respect to the bracket, wherein the hook has a first part for supporting an end of the temple so that the temple is turned about the first part, and a second part for stopping turning of the temple. The turning mechanism can be made very light weight and dispense with additional parts such as bolts and nuts.