Glasses loss prevention / drop prevention during activities

Abstract

Eyeglass loss prevention device comprising a neck cord (1) which can be opened by a simple pull and an eyeglass temple connecting cord (2) attached thereto under a connection to the eyeglass temples, characterized in that a.) the tear-resistant plastic cord of the neck cord (1) contains a predetermined breaking point to prevent strangulation (1a), ensured by separating the cord and reconnecting it by means of a self-adhesive plastic sleeve. b.) The tear-resistant plastic cord of the neck cord is covered with a sheath of soft tubular material (1d). The ends each have an end loop (1c) and a binding eyelet (1b) for attaching the eyeglass temple connecting cord (2). c.) the tear-resistant thin eyeglass temple connecting cord between the eyelets is connected to the neck cord via several protective deflections (2e) via the attachment eyelets, thus allowing the circumference of the neck cord to be comfortably extended and closed without further assembly. d.) the connection to the temples of the glasses by means of slide-on highly flexible chloroprene tubes (2a), which can be releasably pushed onto conical connecting pins (2b) and are secured against unintentional slippage by an O-ring (2c) and are thus connected to the safety cord. e.) For eyeglass temples with a cutout, a reversible knot with the eyeglass temple connecting cord is made possible by temporarily disassembling the connecting tubes (Fig. 3b). This is achieved with the aid of the connecting pin (2b) at the end of the connecting cord and the sliding rubber discs (2d) to prevent the knot from unintentionally opening. f.) the specially redirected integration of the spectacle temple connecting cord (2e), where by simply pulling on the neck cord ends the existing cord length of the spectacle temple cord is used to extend the circumference of the neck cord, and after tightening the neck cord into the end position the cord length now allows flexible use of the glasses in a loss-proof state.

Description

[0001] The invention is a safety device for preventing the loss of all types of glasses during activities. The temples are permanently connected to a cord around the neck by a cord. The connection to the neck cord protects the glasses from loss and impact on hard surfaces in all fall situations. The neck cord has a strangulation protection feature, implemented through a predetermined breaking point. Easy donning is achieved by a sophisticated routing of the temple cord through the connecting eyelets. State of the art and its disadvantages

[0002] All known glasses straps consist of a simple connection between the two temples using cords, silicone bands, or wire frames. These are all intended to provide a better hold on the head and make it more difficult to drop the glasses, but cannot guarantee that the glasses will be lost. If the glasses fall from the head in an unfavorable direction, the simple connection between the temples using a cord or silicone strip at the back of the head will break the structure's ability to hold them in place, and the glasses will be lost. Floatable versions of common glasses straps may also protect against loss during water sports, but not during many other activities such as climbing. Furthermore, many versions designed for sports are thick and heavy, which greatly impairs freedom of movement and the wearing comfort of the glasses.

[0003] Many well-known variants use the elastic effect of the material in tightly enclosing areas at the back of the head to create a certain tensile stress for attaching the glasses, with the disadvantage that the glasses are permanently pulled backwards under the corresponding tension and thus exert pressure in the area of ​​the bridge of the nose and the surrounding eye area.

[0004] When connecting eyeglass straps to the temples, only inflexible standard grommets or simple rubber connectors are used and pushed onto the temples. These connectors cannot guarantee the extensive model variations of the temple ends or a secure fit. Furthermore, many of these models are very bulky and impair wearing comfort. Object of the invention

[0005] The task is to develop a device that prevents sports glasses or prescription glasses from being lost or damaged by them hitting hard surfaces in all situations and during all activities, while still allowing the glasses to be used normally without any restrictions on comfort. Furthermore, despite the safety device being in place, it should be possible to remove the glasses and wear them hanging in front of the body or on the top of the head near the hair, and different temple connections should be available for different models. Furthermore, the safety device should be easy, quick, and comfortable to put on and take off thanks to a clever way of integrating the temple connection cord into the neck cord. The many different temple ends on sports glasses and prescription glasses require a secure and flexible connection to the safety device. Solution to the task

[0006] The glasses loss protection ( Fig. 1) essentially consists of two movably connected elements: the neck cord (1), which is worn movably around the neck in the closed position and is equipped with a strangulation protection device (1a), and the temple connecting cord (2), which is attached to the ends of the temples using various systems and is connected to the ends of the neck cord by a protective, multiply deflected path (2e) of the temple connecting cord through two attachment eyelets (1b). This ensures easy expansion or reduction of the circumference of the neck cord for easy application over the head.

[0007] The neck cord (1) consists of a thick, tear-resistant cord whose ends are formed and fixed into two loops (1c), and into which the connecting eyelets (1b) for the eyeglass temple cord are incorporated. For reasons of comfort, the neck cord is covered with a flexible tube nozzle made of soft plastic (1d) to reduce friction on the neck. As a safety feature, the neck cord is split at one point and held together with a self-adhesive plastic tube, which tears at the predetermined breaking point (1a) in the event of a strangulation situation. When worn and closed, the neck cord can only be closed up to the point where the ends touch, thus always sitting loosely and comfortably around the neck. How it works

[0008] The eyeglass temple connecting cord can be removed again by attaching a chloroprene hose nozzle ( Fig. 3a-2a) or by a detachable knot with the connecting pins attached to the ends of the cord ( Fig. 3b-2b) are attached to the temples (3a+3b), depending on the type of glasses. In this position, the circumference of the neck cord can be increased by wrapping the temple connecting cord several times through the connecting eyelets, and the neck cord by simply pulling its ends apart. Using the integrated temple securing cord, the circumference of the neck cord can be increased so that the cord can be easily placed over the head.Once the cord has reached the desired position around the neck, simply pull on the temple cord to close the circumference of the neck cord until the end position (cord ends touching) of the loose neck fit is reached (from this point on, the loss protection is guaranteed). At the same time, the entire length of the temple connecting cord is released again. This creates flexibility for different wearing options and comfortably protects the glasses against loss, whether hanging in front of the body or in various positions on the head. Taking them off is done in the reverse order in the same easy way by pulling the neck cord apart. For optimal freedom of movement and wearing comfort, the cord opening can be worn at the back of the neck.

[0009] The variable temple connection ( Fig. 2) is achieved on the one hand by highly flexible chloroprene tube sleeves (2a), which are pushed onto the connecting pin (2b) and secured with an O-ring (2c) to prevent them from slipping back. The other opening of the sleeve is adjusted to the different types of temples ( Fig. 3a) with a slight twisting motion. The chloroprene sleeves have the property of tapering their cross-section under tension, thus preventing safe and accidental removal. By unwinding them, the chloroprene tubes can be removed from the temples without damage. The tube sleeves can also be disassembled by removing the O-rings ( Fig. 3b) and expose the connecting pin (2b) to create a secure connection by means of a detachable safety cord attachment (2) for appropriately prepared temples with a recess (3b) or hole at the end. This fastening option is often found in modern sports glasses, where the tube nozzles can be difficult to slide on due to very wide temple ends. Small, movable rubber discs (2d) are incorporated into the temple connecting cord, which prevent accidental loosening of the connecting knot on the temples with the help of the connecting pins (2b). To do this, the rubber discs are pushed up to the closed knot ( Fig. 3b) and the returning knotted cord is kept taut. The temporarily removed hose nozzles can be easily reattached to the connecting pin, secured with the O-ring, and used for the corresponding temple types.

[0010] Since the connecting cord between the temples cannot be pulled through the eyelets, the glasses remain secure even if, in the worst case scenario, one of the two connections to the temples should come loose, the second cord secures the glasses on its own. If accidentally dropped, the glasses can fall down from the neck by a maximum of the length of the connecting cord, thus protecting them from damage upon impact with the ground. Advantages of the invention

[0011] In addition to the most important aspect, a genuine and fully functional anti-loss device (and not just support for holding while wearing) for sports and prescription glasses in all activity areas, the comfortable use of the glasses while secured is certainly worth mentioning. The thin safety cord and the coated, lightweight neck strap remain almost unnoticeable, allowing for completely natural wearing comfort. The fact that the safety device, including the glasses, can be put on and taken off in seconds demonstrates a high level of willingness to put on and use the anti-loss device. Furthermore, if the glasses are accidentally dropped, they also prevent damage to the glasses upon impact.Thanks to the flexible and universally designed temple connection, almost all temple variants are securely and detachably connected to the anti-loss device, which makes a sensible and broad use of the anti-loss device possible. List of reference symbols: 1 neck cord 1a strangulation protection 1b Binding eyelets 1c End loops 1d hose nozzle 2 eyeglass temple connecting cords 2a Chloroprene hose nozzle 2b connecting pin c O-ring 2d rubber plate 2e Deflection of the connecting cord 3 temples 3a standard temples 3b Temples with recess

Claims

[1] Glasses loss prevention device with a neck cord (1) that can be opened by a simple pull and a spectacle temple connecting cord (2) tied to it under a connection to the spectacle temples, the characterized by is that a.) the tear-resistant plastic cord of the neck cord (1) contains a predetermined breaking point against strangulation (1a), ensured by separating the cord and reconnecting it with a self-adhesive plastic grommet. b.) The tear-resistant plastic cord of the neck cord is covered with a sheath of soft tubular material (1d). The ends each have an end loop (1c) and a connection eyelet (1b) for the eyeglass temple connecting cord (2). c.) the tear-resistant thin connecting cord for the temples is connected to the neck cord between the eyelets via several deflections worthy of protection (2e) via the connection eyelets, so that the circumference of the neck cord can be extended and tightened comfortably and without further assembly. d.) the connection to the temples by means of highly flexible chloroprene tubes (2a) which can be pushed onto conical connecting pins (2b) and are secured against accidental slipping out by an O-ring (2c) and are thus connected to the safety cord. e.) for temples with a recess, by temporarily dismantling the connecting tubes ( Fig. 3b), which allows for a releasable knotting with the eyeglass temple connecting cord. This is accomplished with the aid of the connecting pin (2b) at the end of the connecting cord and the movable rubber disc (2d) to prevent accidental opening of the knot. f.) the specially redirected integration of the eyeglass temple connecting cord (2e), where by simply pulling on the neck cord ends the existing length of the eyeglass temple cord is used to extend the circumference of the neck cord, and after pulling the neck cord to the final position the length of the cord now allows flexible use of the glasses in a loss-proof state.

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