RU2732787C1 - Connecting loop-lock for spectacle frame and temple - Google Patents

Abstract

FIELD: optics.

SUBSTANCE: invention relates to spectacle optics, specifically to screwless joints of arches and spectacle holder. Connecting loop lock for the spectacle holder and the shackles is formed by the end element of the holder, made of two detachable parts, in each of which there are rectangular holes, end element of the arch, brace made in form of rectangular plate with two holes, having identical shape with holes of end element of holder, two crossbars, made in form of flat elements of complex shape, lock, made in form of plate, one of which ends is made shaped, at that, endings of the end element of the holder are shaped and form a cross-shaped cut on the edge of the end element of the holder, on the end part of the end element of the arch there is a cross-shaped projection, in the central part of the brace between the holes there is a resilient element formed by U-shaped cutout in the brace, in the body of the lock a through slot of the complex shape is made, which forms an elastic element.

EFFECT: technical result consists in obtaining a simple in assembly-disassembly structure without using an additional tool.

1 cl, 6 dwg

Description

The invention relates to spectacle optics, in particular to screwless connections of the temples and spectacle frames.

The known design of glasses (US 20130229613 A1, publ. 5.09.2013), containing a frame, temples located on the left and right sides of the frame, and a connecting element on each side. The ends of the bows facing the frame are separated by several tongues, and each of the outer tongues is provided with a hinge part with which the bow is pivotally attached to the shoulder of the connecting element, so that at least one central bow tongue is slidable along the surface of the free end of the connecting element during pivoting, characterized in that at least one tongue has a protrusion that prevents continuous sliding movement of the central tongue. The disadvantages of this solution are: the lack of the function of the lens lock for the connecting lock, the inability to use materials with a high coefficient of friction, a large number of structural elements from the view side of the glasses.

Known screwless connecting structure of the frame and temples of glasses (US 8827444 B1, publ. 09.09.2014), containing a frame with an open slot provided, respectively, between the connecting ends on the left and right ends of the frame, and the hole at the front edge of the connecting end is provided respectively with two latches that face each other, the upper and lower ends of the two connecting ends of the open slots are respectively provided with a latch hole, and the inner side of each connecting end is respectively provided with a wall, the connecting ends being linear when viewed from above; and containing two connecting blocks, wherein the middle of the connecting block is provided with a latch with a slot for fixing in the connecting ends that are closed together, and the two sides of the two T-shaped cylinders at the upper and lower ends of the latch of the slot are respectively provided with a locking slot providing fixation in the latches of the pins positioning frames; also comprising two resilient elements provided with two resilient blocks that snap into the two latch holes of the frame connecting ends; and also two bows, wherein the front end of each bow has the shape of three forks, an elastic sheet is provided in the middle of the bow, and the upper and lower ends of the bow are provided, respectively, with an arcuate hook element. The hook element is engaged in two cylinders above and below the connecting block, and the front edge of the hook element is provided with a baffle that is mounted on the wall of the connecting end of the frame. The disadvantages of this solution include a large number of parts, including small ones that are easy to lose during disassembly of glasses, large geometric dimensions of the frame corner for the implementation of this design, the need for an additional tool to remove the staple, the great complexity of manufacturing parts, a large number of structural elements on the view surface of the glasses.

The object of the present invention is to provide a resilient screwless connection between the frame and the temples with a lens lock function.

The technical result of the claimed invention consists in obtaining a structure that combines a lens lock and a spring-loaded hinge connecting the bow and the frame. At the same time, this design is easy to assemble and disassemble without the use of additional tools, is implemented in a compact size of the frame corner, allows the use of materials with a high coefficient of friction for the manufacture of frames and temples, and has good aesthetics from the viewpoint of the glasses.

The technical result is achieved due to the fact that the connecting loop-lock for the frame and temples of glasses is formed by an end element of the frame made of two detachable parts, each of which has rectangular holes, an end element of the bow, a tie made in the form of a rectangular plate with two holes, having an identical shape with the holes of the end element of the frame, two crossbars made in the form of flat elements of complex shape, a lock made in the form of a plate, one of the ends of which is figured, while the ends of the parts of the end element of the frame are shaped and form a cruciform cut on the edge of the end element of the frame, a cruciform projection is made on the end part of the end element of the bow, in the central part of the tie between the holes there is an elastic element formed by a U-shaped cut in the tie, in the body of the lock there is a through slot of a complex shape that forms an elastic element.

A hole can be made in the end piece of the bow. In this case, the connecting loop-lock is provided with an eccentric made in the form of a hook-shaped element for fixing the end element of the bow in the hole.

The invention is illustrated by drawings, which show: Fig. 1 - General view of the connecting hinge-lock in a disassembled state, Fig. 2 - view of the connecting hinge-lock in the assembled state with the unfolded state of the frame, Fig. 3 - view of the connecting loop-lock in the assembled state in the folded state of the frame, Fig. 4 is a top view of the connecting loop-lock in the assembled state, Fig. 5 is a view of the connecting loop-lock in the assembled state from the inside of the frame, Fig. 6 is an embodiment with an eccentric in the form of a separate part.

Positions in the drawings indicate:

1 - bow,

2 - frame,

3 - eyelet,

4 - screed,

5 - lock,

6 - eccentric.

The connecting loop of the lock is formed from the end element of the frame 2, the end element of the bow 1, two cross members 3, the tie 4 and the lock 5.

The end element of the frame 2 is made of two detachable parts, each of which has rectangular holes. The ends of the detachable parts are shaped and form a cruciform cutout on the edge of the frame end element 2.

On the end part of the end element of the bow 1, a cruciform projection is made, the central part of which plays the role of an eccentric in the structure. An embodiment of the eccentric in the form of a separate part is possible, in which case the end element of the bow contains an opening (Fig. 6).

The brace 4 is made in the form of a rectangular plate with two holes having an identical shape with the holes of the end element of the frame. In the central part of the tie between the holes there is an elastic element formed by a U-shaped cut in the tie. The elastic element acts as a spring in the structure.

The crossbars 3 are flat elements of complex shape and have protrusions and grooves for fastening in the holes of the tie 4, the end element of the frame 2, and on the protrusions of the end element of the bow 1.

Lock 5 is a plate. One of the ends of the plate is shaped. In the body of the lock there is a through slot of complex shape, which forms an elastic element.

The structure can be additionally equipped with an eccentric 6 made in the form of a hook-shaped element for fixing the end element of the bow 1 in the hole.

When assembling the goggles, the crossbars are installed in the tie holes and form a non-separable "bracket" connection. After installing the lens in the frame, the bracket is mounted in the holes of the frame end element by placing crossbars in the holes of the frame end element and pulling it together. Position the end piece of the bow into the cutout on the end piece of the frame. On the inner side of the end element of the frame, a lock is placed, which fixes the bracket in the frame, ensuring the retention of the bow in the assembled state when using glasses in the future.

Such a structure, containing a spring, the role of which is played by the elastic element of the tie, and the eccentric, made in the form of a separate part or in the form of a protrusion of the end element of the bow, allows the bow to be fine-tuned when folding and unfolding the glasses.

Few parts and no tools are required when assembling and disassembling glasses make it quick and easy to change lenses or repair frames.

Claims (2)

1. Connecting loop-lock for the frame and temples of glasses, formed by the end element of the frame made of two detachable parts, each of which has rectangular holes, the end element of the bow, a tie made in the form of a rectangular plate with two holes having an identical shape with holes of the end element of the frame, two cross-pieces made in the form of flat elements of complex shape, a lock made in the form of a plate, one of the ends of which is figured, while the ends of the parts of the end element of the frame are shaped and form a cruciform cut on the edge of the end element of the frame, on the end part of the end element of the bow is made with a cruciform protrusion, in the central part of the tie between the holes there is an elastic element formed by a U-shaped cut in the tie, in the body of the lock there is a through slot of a complex shape forming an elastic element. 2. The connecting loop-lock according to claim 1, characterized in that a hole is made in the end element of the bow and the connecting loop-lock is equipped with an eccentric made in the form of a hook-shaped element for fixing the end element of the bow in the hole.

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