What is described is a hinge device for connecting the sides (2) to the fronts of spectacle frames (4), comprising a first and a second hinge element (6, 7) pivoting about a hinge axis (X), the first element (6) comprising a substantially fork-shaped body (8) with a first and a second arm (9, 10) opposed to one another, between which the second hinge element (7) is interposed, and a screw means (16) forming a hinge pin, passing through respective holes formed coaxially in the first and the second hinge element (6, 7), so as to be, respectively, locked by a screw engagement in the first hinge element (6) and housed rotatably in the second hinge element (7). The device further comprises at least a first anti-seizing sleeve (18) provided in the hole (13) of the second hinge element (7) and capable of being engaged by the hinge screw (16) in a rotatable coupling, the sleeve (18) comprising at least a first surface (20) extending in a contact area and capable of relative sliding between the hinge elements (6, 7), at least one ring (22) of elastically flexible material, fitted on the hinge screw (16) and capable of being deformed elastically as a result of the tightening of the screw so as to exert a relative pressure between the first and the second hinge element (6, 7), thereby increasing the friction provided between the hinge elements, and at least one bush (23) mounted in a seat of the first hinge element (6), coaxially with the hinge screw (16), and capable of accommodating the ring (22), the bush (23) including at one of its axial ends a bearing shoulder (24) for the ring (22), and being capable of making contact with the first surface of the anti-seizing sleeve (18), so that the bush (23) is biased axially against the sleeve (18) by the elastic action generated by the friction ring (22) as a result of the tightening of the hinge screw (16).

The eyeglasses frame includes a first hinge barrel provided on a lens holding portion, a second hinge barrel provided on a temple, a first screw that pivotably couples the first hinge barrel and the second hinge barrel, and a second screw provided in the second hinge barrel and contactable with the first hinge barrel. A tip portion of the first hinge barrel is a cam that includes a first depression where the second screw comes to rest when the eyeglasses frame is completely open, a second depression where the second screw comes to rest when the eyeglasses frame is completely closed, substantially straight portions that join the first and second depressions, and a corner portion where the substantially straight portions change direction at a point therebetween.

The present disclosure provides a glasses. The glasses may include a glasses frame and two speakers. The glasses frame may include a glasses rim and two glasses temples. The two glasses temples may be rotatably connected to the glasses rim, respectively. For each of the two speakers, the speaker may include an earphone core and a core housing. The speaker may be connected to one of the two glasses temples via a hinge component connected thereto. The hinge component may be rotatable to change a position of the speaker relative to the glasses temple. The core housing may include a contact surface. The contact surface may include a gradient structure for causing an uneven distribution of pressure on the contact surface when in contact with a user. The glasses temple connected to the speaker may include at least one of a control circuit or a battery. The at least one of the control circuit or the battery may drive the earphone core of the speaker to vibrate to generate sound. The glasses of the present disclosure may meet various requirements of people when wearing glasses, and a hinge state of the glasses may be switched easily, thereby providing convenience for users.

The present disclosure embodiment may disclose eyeglasses. The eyeglasses may include an eyeglass frame and two speakers. The eyeglass frame may include an eyeglass rim and two eyeglass temples. The two eyeglass temples may be rotatably connected to the eyeglass rim, respectively. The two speakers may include an earphone core. The two speakers may be connected to the two eyeglass temples via hinge components of the two eyeglass temples, respectively. Each hinge components may be rotatable to change a position of its connected speakers relative to one of the two eyeglass temples. The eyeglasses of the present disclosure may satisfy various requirements when a user wears the eyeglasses, and the hinge state may be switched easily, thereby providing convenience for the user.

A pair of foldable spectacles has a two-lens front piece (30) to which two side pieces (20a, 20b) are pivotally connected by means of resilient corner hinges (25). The front piece (30) has a central hinge assembly (40) by means of which the front piece can be folded to a position where its lenses (31, 32) are held between and protected by the side pieces (20a, 20b). Each side piece (20a, 20b) has a first portion (21) which is connected to the front lens piece (30) by a resilient corner hinge (25), a second portion (22) which forms a free end portion of the side piece, and a resilient transition portion (23) between the first and second portions (21, 22). Thanks to the resilient corner hinges (25) and the resilient transition portion (23) of the two side pieces (20a, 20b), the spectacles (10) in use are held in place in a reliable manner since the side pieces (20a, 20b) are pressed against the side of the user's head.

The present invention relates to a glasses leg spring hinge structure, comprising a glasses leg, plurality of metal rings, a rotating shaft, a leaf spring and a mounting head, wherein the metal rings are fixedly connected to a head of the glasses leg, wherein the rotating shaft is arranged in the metal rings, wherein the leaf spring is arranged at the head of the glasses leg, wherein the leaf spring is located below the rotating shaft, wherein a rotating shaft groove is formed in a side surface of the rotating shaft, wherein the mounting head is T-shaped and wherein a head of the mounting head is inserted into the rotating shaft groove.

Eyewear having a frame, a hinge, and a hyperextendable temple having a flexible printed circuit (FPC) including service loops. An extender is coupled to the hinge and the temple, and the extender extends with respect to the hinge allowing hyperextension of the temple with respect to the frame. A first service loop allows extension of the FPC when the temple rotates about the hinge, and a second service loop allows the temple to be radially extended away from the hinge.

The present invention relates to a glasses leg spring hinge structure, comprising a glasses leg, plurality of metal rings, a rotating shaft, a leaf spring and a mounting head, wherein the metal rings are fixedly connected to a head of the glasses leg, wherein the rotating shaft is arranged in the metal rings, wherein the leaf spring is arranged at the head of the glasses leg, wherein the leaf spring is located below the rotating shaft, wherein a rotating shaft groove is formed in a side surface of the rotating shaft, wherein the mounting head is T-shaped and wherein a head of the mounting head is inserted into the rotating shaft groove.

A pair of eyeglasses with interchangeable parts is described herein. The pair of eyeglasses have a bridge that optionally includes a front piece that detaches from a rear piece without the need for any tools. The bridge is located between the left and right rims of the eyeglasses and connects the left rim and right rim. Optionally, the front piece and rear piece of the bridge sandwich the left and right rims. Optionally, the pair of eyeglasses also includes left and right temples that connect and disconnect from the left and right rims, respectively, using a spring-loaded locking mechanism. Methods of wearing the eyeglasses and changing parts are also described.

Eyeglasses includes an eyeglass frame, an eyeglass temple, and a connecting member. The eyeglass temple is mounted on the eyeglass frame. The eyeglass temple is rotatably connected to the eyeglass frame. The eyeglass temple is provided with a connecting member and is rotatably connected to the eyeglass frame by the connecting member. A slot is provided in a position of the eyeglass frame corresponding to the connecting member. A notch is provided in a first side of the slot for the connecting member to rotate in and out of the slot. The connecting member is configured to insert into the slot to form a rotatable connection with the eyeglass frame. The slot is provided with an elastic member. The connecting member is provided with a first groove and a second groove corresponding to positions where the eyeglass temple is opened or closed, respectively.