Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Temples
Patent
1983-04-11
1985-10-22
Bovernick, Rodney B.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Temples
351119, G02C 514
Patent
active
045484848
DESCRIPTION:
BRIEF SUMMARY
FIELD AND BACKGROUND OF THE INVENTION
In normal eyeglasses, the spectacle temple is designed to ensure a satisfactory seat of the frame, and also to prevent the glasses from becoming a hindrance to the user in any substantial manner. This last requirement cannot be met with a spectacle frame which, even though remaining in wanted position during usual body activities, does not remain in place during abrupt movements, such as during sporting activities. The glasses shift or even get loose and drop to the ground. Vision-handicapped persons are exposed to this inconvenience especially while engaging in a sport.
To avoid these drawbacks, it is known to equip the spectacle frame with special temple embracing the outer ear more than in normal spectacles, and thus making possible a firm seat of the spectacles even during abrupt movements.
What is disadvantageous in these so-called sporting glasses is that in normal use, they are not comfortable. Further known are sporting glasses having a rubber band secured to the frame and forming a loop around the user's head. While the frame is held in position by the pull of the rubber, the bridge of the frame is pressed against the root of the nose. Frequently, this causes headaches or similar problems. Therefore, as a rule, sporting glasses of this shape are kept as second eyeglasses in addition to glasses for regular use, which is an additional expense.
SUMMARY OF THE INVENTION
The invention is directed to making usual spectacles adaptable so that they may be used for purposes of every day life and also for sporting and similar activities, as desired. More particularly, the objective is to be able to modify a conventional spectacle frame to ensure a firm seat thereof even during engagement in sports, without resorting to permanent changes in the frame for ordinary use.
To this end and in accordance with the invention, an attachment is provided which is so designed that it is detachably securable to a spectacle frame and in such a contact with the ear or head of the spectacle user that the spectacles are fixed even during abrupt movements, such as during a sporting activity. In a preferred embodiment, the attachment comprises a leg and a substantially semicircular end portion adjacent thereto, with the leg being equipped with a clamping or snap-action mechanism for connecting to the spectacle temple in a non-positive manner.
While employing the inventive attachment, it suffices to have but one spectacles for both normal use and sporting activities. In a simple way, the normal spectacles will be transformed into sporting spectacles, as needed, by equipping the frame with the inventive attachment.
BRIEF DESCRIPTION OF THE INVENTION
In the following, the essence of the invention is explained in more detail with reference to the drawing in which;
FIG. 1 is a side view of an inventive attachement:
FIG. 2 is a top plan view of the attachment;
FIG. 3 is a sectional view taken along the line CD of FIG. 2;
FIG. 4 is a right-hand side view of the attachment of FIG. 1 taken in the E direction;
FIG. 5 is a sectional view taken along the line AB of FIG. 1; and
FIG. 6 explains the manner of fixing the attachment in position on a temple .
DESCRIPTION OFF THE PREFERRED EMBODIMENT
The attachment of the invention, comprises a leg or leg portion 2 and an adjoining, substantially semicircular part 3, the end portion of the attachment. A slot opening or oblong hole 4 of horizontal extension is provided in leg 2, extending vertically through the leg. Hole 4 is of such shape that the end 12 of a spectacle temple shown in FIG. 6, of a normal spectacle frame, can be passed through from below (FIGS. 1, 2). The oblong hole 4 is followed, at the end portion 3 side, by an upwardly open U-section portion or zone 5, and toward the free end of leg 2, by a downwardly open U-section portion or zone 7. This design of the leg prevents the attachment 1, when put in place, from being exposed to shearing forces relative to the temple. Portion 5 of leg 2 extends further into end portion 3 as a groove 6
REFERENCES:
patent: 1833792 (1931-11-01), Pfaus
patent: 2172959 (1939-09-01), Hirtenstein
patent: 2229568 (1941-01-01), Hodgkins
patent: 3649106 (1972-03-01), Hirschmann, Jr.
patent: 4012130 (1977-03-01), Guillet
Bovernick Rodney B.
Dzierzynski Paul M.
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