An elastic hinge for eyeglasses includes: a box-shaped housing with an inlet aperture; a fork carriage, slidably mounted in a guiding cavity inside the box-shaped housing opposing an elastic element; and an elastic holding clip, snap-engageable with a retaining structure of the housing cavity, against which one end of the elastic element abuts. The elastic holding clip is generally C-shaped, providing a resting arm and a flexible arm joined by a connecting portion, the flexible arm having an engaging unit to snap-engage with the retaining structure, the resting arm and flexible arm elastically biased one towards the other by inner walls of the housing. The flexible arm is integral with at least one bias element, accessible from an inlet aperture of the housing, defining bias planes to be engaged with a tool, introduced via the inlet, for imparting a disengaging bias, bending the flexing arm towards the resting arm.

Provided herein is a flexible hinge comprising a tension spring (1), a sliding element (2), a sliding element guide (3), a spring tensioner (4), a stop (5) for stopping the longitudinal movement of the sliding element (2), a fastener (6), and a bearing shield (7). The flexible hinge disclosed herein can be installed in a pair of eyeglasses comprising a pair of temples and a frame front so as to connect the temples to the frame front. The flexible hinge can be fixed to the temple with the stop (5) at one end and to the frame front with the fastener (6) at another end. The fastener (6) is used to engage sliding element (2) with the bearing shield (7). The sliding element guide (3) enables longitudinal movement of the sliding element (2) along the x-axis and prevents its movement along other axes.

Elastic hinge for the plastic frame of eyeglasses, which comprises a first articulation element and a second articulation element, wherein the first articulation element comprises a box-like body provided with a seat and a carriage provided with a rod-like element inserted in the seat and with a head externally projecting from the seat and coupled with the second articulation element. A bush is slidably mounted on the rod-like element, and a spring thrustingly acts on such bush. A fork-shaped body is inserted from the outside into a hole of the box-like body and is engaged with the bush in a straddling manner in order to retain the latter with respect to sliding along the longitudinal axis of the rod-like element.

A hinge assembly comprising a guide body, a first connection element, a second connection element, a first spring and a second spring; the guide body comprising a first end surface and a second end surface provided at opposite sides respectively, wherein the first end surface is provided with a first guide slot, the second end surface is provided with a second guide slot, and the first guide slot and the second guide slot intersect orthogonally, the first connection element is provided with first connection end extending beyond an end surface of the endpiece, the second connection element is provided with a second connection end extending beyond an end surface of the temple end, the first connection end and the second connection end are hingedly connected and pivoted with each other within the guide body; A glasses frame comprising an endpiece, a temple, and a hinge assembly.

A combined glasses structure, including a lens component, two temples, a frame component and a nose pad component is provided. The lens component comprises two lens and a bridge, two temples are respectively detachably connected to the lens component; the frame component includes an upper frame and a lower frame, the upper frame and lower frame are respectively detachably arranged on an upper and a lower edge of the lens component; the nose pad component and the bridge are detachably connected to each other, and can restrict and fix the upper frame and/or lower frame arranged on the upper edge, lower edge, upper and lower edges of the two lens. By the detachable connection between the frame component and the lens, the frameless, half-frame (upper frame or lower frame) and full-frame functions of the combined glasses can be achieved.

Provided is smart glasses including a spectacle frame having a lens frame to which a pair of lenses or a display is coupled and a pair of spectacle temples which extends from both ends of the lens frame in one direction; a cartridge detachably mounted on the spectacle frame and in which a functional material contained; a spray nozzle which is provided at a nose pad portion of the lens frame and discharges the functional material contained in the cartridge to an outside; and a supply path formed inside the spectacle frame to supply the functional material from the cartridge to the spray nozzle.

Elastic hinge for eyeglass frames, which comprises an articulation screw engaged in the holes of two articulation elements. The articulation screw comprises a shank provided with a narrow portion, which is engaged in the hole of a first tab of an articulation element, and with an enlarged annular portion, which forms a step and is engaged in the hole of a head portion of the other articulation element. The articulation screw assumes an end stop position, in which it is tightened and aligned with the hinging axis, and a blocking position, in which it is loosened and is tilted with respect to the hinging axis in response to the elastic force exerted by an elastic device, such that the step of the articulation screw interferes with the edge of the hole of the first tab of the articulation element, preventing a further unscrewing of the articulation screw.

Disclosed are spectacles with replaceable pins, and belongs to the technical field of spectacles. The spectacles with the replaceable pins may include a spectacle frame and the pins, an edge of the spectacle frame being pivoted with a bolt, the bolt being inserted into an inserting hole of the pin, an elastic piece pushing a stopping block to enter into an opening on a side of the pin, and the spectacle frame being connected with the pins in a buckling manner. When a pressure is applied to the stopping block, the stopping block withdraws from the opening on the side of the pin when elastic force of the elastic piece is overcome and retracts into the accommodation cavity, in this way the buckling connection of the spectacle frame with the pins is removed, the pins and the spectacle frame are demountable, and it is convenient to replace the pins.

Process for assembling an elastic hinge for eyeglass frames comprising a first articulation provided with a head with a first hole, a second articulation having two shoulders provided with second holes, and a pin having a stem provided with a thinned final portion. The process provides for inserting the head of the first articulation between the two shoulders of the second articulation with the first hole of the first articulation non-aligned with respect to the second holes of the second articulation, an opening thus remaining between such holes. A step for inserting the pin is provided, during which the thinned portion of the pin is wedged in the aforesaid opening between the holes and is screwed into one of the second holes of the shoulders of the second articulation.

An elastic hinge that can make the earpiece extend outwards includes a slingshot case secured to an earpiece and slingshot core secured to a frame. The slingshot case has an installation hole, into which the slingshot core is inserted and fixed. The slingshot core has an installation base and central spindle which is fixed onto the installation base and extends inside the installation hole. A fixed tube and a spring are provided on the spindle, and a stopper is provided to stop the spring and fixed tube from coming apart. A pair of barbs, which are elastic and able to retract or dilate, are provided on the fixed tube, and which interact with a ring inside the installation hole. When the fixed tube passes through the ring, the barbs retract and then extend outwards to thereby connect the slingshot core and slingshot case.