1 Pair Plastic Eyeglass Arms Glasses Replacement Temple Legs, Black

Product Information

For facial comfort, the bridge of your glasses has two main functions. These come from bridge bump and the bridge aperture. This is where the temples locate onto the rear side of the frame front via the hinges. Endpieces vary in size and shape, depending on the style of temples on your glasses. Thread seeking screws are a fantastic design which makes it easier for you to locate the screw into the top tenon of the hinge. They do this via an extended metal “nose” which tapers to a fine point. This nose can then be snapped off once the screw is fully tightened into the hinge as it is no longer required. Due to the vast variety of acetate colours and patterns, Windsor rims introduce colour and vibrancy to a metal wire frame. Furthermore, the acetate sheathe can be replaced if it becomes worn or damaged. Deco rivets are used on full rim frames to mimic the appearance of actual rivets. Instead of passing through the frame, deco rivets are entirely superficial, added to the surface of a frame which uses hidden hinges.

Rimless endpieces are actually part of temple instead of the front. Beyond the hinge is another section of metal called a “lug”, which is usually a bent at an angle of about 96°. The lug is then screwed through the lens to create a firm joint. On the temple half joint, the hinge body conceals a spring which allows the temple to extend beyond it's maximum range of motion. This makes the glasses frame more adaptable for more head sizes as it can "spring" wider than a traditional tenon hinge. Most standard eyeglass hinges are classified as three-, five-, or seven-barrel hinges. This refers to the number of interconnected barrels that comprise the hinge. For conventional hinges, five- and seven-barrel configurations are the most common. While seven-barrel hinges are sturdier, they’re also more difficult to adjust and repair. When choosing between five- and seven-barrel hinges, let your habits inform your decision. If you’re hard on your glasses, for example, five-barrel hinges may be a better option for you. Spring/Flex HingesOnce located, the screws can be tightened to adjust the opening and closing mechanism of your temples. This can be a personal preference as to how tight or loose you want this to be. Standard hinges are more affordable. Thanks to the uncomplicated design and wide use of the barrel hinge, eyeglasses that feature them are often more affordable. Standard Barrel Hinge Cons: Cable temples refer to curly temple tips, which curl behind your ears. Cable temple hold glasses in place better and are a good choice for people in active situations and for children. However, cable temples are not easy to adjust, and if they pinch your ear it is very difficult to adjust the temples as the metal is not designed to be adjusted easily. Hinges An assortment of metal spectacle hinges which can either be riveted, screwed, melted or soldered into a glasses frame. The most common is the skull temple, with the long straight shaft that is bent with an angle at the top of the ear near the end of the temple which is called the temple tip. The shaft is the straight part that extends from the connection point at the eyeglasses frame front to the bend in the temple.

The acetate itself also acts as a protective barrier to the frame as it may be made from precious metals such as gold, silver or titanium. Metal bridges are used for either rimless frame fronts or for acetate “split frames.” For acetate split frames, a conjoining piece of metal is riveted or screwed into the separate acetate rims to join them together.

Also called a saddle bridge, regular bridges are U-shaped and are simple and continuous in their form. Depending on the type of hinge, the amount of rivets can vary between a two-cluster and a three-cluster formation which are used equally for the frame and the temple. Keyhole bridges are a traditional style of bridge which resembles that of a keyhole. This bridge-style is generally more classic, associated with full rim eyewear design from the mid-century. For acetate eyeglasses frames, the eyepiece is heated until it expands, the lens is snapped into position.

Bridge width is the second number in the string (51-22-140) and is important in determining fit. The bridge measurement is the distance between the lenses. If you have a narrow bridge or close set eyes you will want this number to be lower (15mm to 18mm) if you have a wider bridge or wide set eyes this number can be higher (20mm to 24mm).These little screws are what holds your entire glasses frame together and are arguably one of the most important parts of glasses frames. Furthermore, the inner walls of the hinge grave also provide lateral support for riveting which prevent the hinge from moving around as the rivets are peened. Full rim frame fronts cover the entire edge of a lens. Your lenses are held in place using an angled recess in the frame front called a lens groove. A simplified version of the keyhole bridge would be the less intricate "regular bridge" or as it's sometimes called, a "saddle bridge" which resembles a simple "U" shape.

The most common type of hinges you will find are Standard Hinges. Eyeglasses frames' hinges are used to connect the temples to the front of the eyeglasses frames, while allowing the temple to fold flat against the frame. Most frames use external hinges, which are mounted on the inside of the temple shaft. Internal hinges are buried inside the shaft of the temple, hiding the mechanism from view.

Spring/Flex Hinges

The frame front is composed of two eyepieces connected by the bridge, Some glasses frames have single bridge and some have two which generally called aviator frames. In the middle, a metal bridge is screwed onto the innermost edge of each lens. The screws pass right through the lens which make the basic frame front. At the outside edges (the endpieces) the hinges are also screwed through the lenses to complete the frame assembly. From above, you’ll notice that the bridge protrudes slightly from your glasses frame. This is called the “bump” which creates room for the crest (top) of your nose as the glasses rest on your face. If your glasses have a tenon hinges, they will likely be fastened in one of two ways, either via pin rivets or heat-insertion. Pin riveting is the most traditional method of attaching a tenon hinge to a glasses frame as they provide a solid fix between the hinge and the frame front. Nosepads are attached either by a screw (screw-in nosepads), or they are push-in nosepads which require no screw. Most nosepads are designed this way so that the nosepads can be replaced when they wear out.