Device for attaching a pair of spectacles to headgear

Apparel – Guard or protector – For wearer's head

Patent

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2452, A61F 902

Patent

active

057200408

DESCRIPTION:

BRIEF SUMMARY
The present invention relates to a device for attaching a pair of spectacles or another eye protection screen to headgear such as a hat, cap, helmet or even to a sufficiently rigid head band. Headgear equipped with a pair of spectacles, for example sunglasses, is specially useful for distracted persons who often forget where they left their pair of glasses the last time, but always know where their cap is because of its greater visibility.
U.S. Pat. No. 1,473,013 shows, in FIGS. 9 and 10, a cap fitted on the underneath of its peak with a pair of spectacles pivotable between a vertical use position and a stored position underneath the peak. In the use position, each lens can also be turned by 90.degree. to lie parallel to the nose so that, if needed, only the right or left lens can be used. In this arrangement, there is thus only one degree of freedom:rotation about a horizontal axis parallel to the wearer's forehead to adjust the position of these spectacles relative to the face, which is quite insufficient bearing in mind the diversity of morphologies and the many different ways of wearing a hat.
EP 0 412 737 discloses a head band fitted with a peak underneath which is fitted a notched slide with dove-tailed lateral edges for receiving a support piece for a pair of spectacles. More specifically, this support piece is in the form of a downwardly-facing clip in which clips the bridge of a pair of spectacles. In this arrangement, there is only a single degree of freedom:moving the spectacles forwards or backwards to adjust the spectacles relative to the face. Moreover, if the wearer only wants to use the peak momentarily, it is necessary to remove the spectacles from the clip which, upon repeated removal, loses its gripping efficiency and eventually becomes useless.
EP 0 321 617 discloses a cap provided with a peak whose underneath is also fitted with a slide in which is slidably mounted for rearward sliding movement a support piece for a horizontal bar 23 parallel to the middle of the bridge of a pair of spectacles. By means of this arrangement, this pair of spectacles can be lifted up under the peak and additionally can be adjusted forwardly and rearwardly relative to the face. However, maintaining the desired more-or-less vertical position depends solely on simple friction between the horizontal bar and its housing in the support piece. In other words, when the dimensions of this housing increase as a result of use, this pair of spectacles rapidly becomes shaky.
Above all, in these three described arrangements, there is no provision for heightwise adjustment between the pair of spectacles and the headgear, which is disadvantageous for persons whose forehead is higher or lower than average. This absence of heightwise adjustment is also a drawback for those who desire to be able to permanently modify how far forward or back they wear their peak while at the same time wishing to keep their pair of spectacles close to their eyes.
FR-E-66 810 discloses a peakless helmet having a vertical mount formed by a slide, an upright with a braking device for limiting sliding, and a rotule on which the forks of a telescopic rod grip. The opposite end of the rod supports a second rotule on which a pair of spectacles is articulated. It is thus possible to set the spectacles to the eyes' height by adjusting the support along the slide and/or along the telescopic rod.
However, a rotule is an articulation formed from a spherical part able to turn in a hollow housing within a cone at the summit, usually by an angle of the order of 150.degree.. So, in this case, there is one degree of freedom too much, namely a possible lateral movement with the pair of spectacles no longer centered relative to the nose. Moreover, the telescopic rod does not have any rotation prevention means, which in practice necessitates the use of two lateral mounts which is expensive to make and is less easy to adjust.
DE 2 030 546 shows a pair of spectacles attached to the peak of a building-site helmet by two lateral uprights each upper end of which is c

REFERENCES:
patent: 1725340 (1929-08-01), Castriotis
patent: 2004701 (1935-06-01), Livengood
patent: 2445203 (1948-07-01), Bowers
patent: 2761145 (1956-09-01), Malcom, Jr.
patent: 4152051 (1979-05-01), VanTiem et al.
patent: 4406040 (1983-09-01), Cannone
patent: 4541125 (1985-09-01), Phillips
patent: 4636048 (1987-01-01), Jones
patent: 5181139 (1993-01-01), Benitez
patent: 5278999 (1994-01-01), Brown et al.
patent: 5289592 (1994-03-01), Paivarinta
patent: 5412812 (1995-05-01), Gatchalian

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