WO2013118162A1 - Eyeglasses with forefront hanging glasses - Google Patents

Eyeglasses with forefront hanging glasses Download PDF

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Publication number
WO2013118162A1
WO2013118162A1 PCT/JP2012/000782 JP2012000782W WO2013118162A1 WO 2013118162 A1 WO2013118162 A1 WO 2013118162A1 JP 2012000782 W JP2012000782 W JP 2012000782W WO 2013118162 A1 WO2013118162 A1 WO 2013118162A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
magnetic piece
connection portion
glasses
recessed portion
Prior art date
Application number
PCT/JP2012/000782
Other languages
French (fr)
Inventor
Eizo Onami
Original Assignee
Aoyama Optical Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aoyama Optical Co., Ltd. filed Critical Aoyama Optical Co., Ltd.
Priority to PCT/JP2012/000782 priority Critical patent/WO2013118162A1/en
Publication of WO2013118162A1 publication Critical patent/WO2013118162A1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C9/00—Attaching auxiliary optical parts
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2200/00—Generic mechanical aspects applicable to one or more of the groups G02C1/00 - G02C5/00 and G02C9/00 - G02C13/00 and their subgroups
    • G02C2200/02—Magnetic means

Definitions

  • the present invention relates to eyeglasses with forefront hanging glasses, in more details, pertaining to such eyeglasses as the auxiliary glasses being able to be detachably mounted through magnetic force on the principal glasses in an easy and secure manner and without damaging on the appearance of the principal glasses.
  • Such auxiliary glasses acting as light shielding or polarizing glasses are disclosed in Japanese Utility Model Registration Laid-open No.3059988 and especially shown in Figure 5 thereof as arranged such that such auxiliary glasses being detachably mounted through magnetic force on the principal glasses.
  • This pair of eyeglasses with forefront hanging glasses'a' comprises principal glasses'd' whose right and left lenses'b and b' are connected with a first connection portion'c'; auxiliary glasses'h' whose right and left lenses'f and f' to cover frontal surfaces'e and e' of the lenses'b and b' are connected with a second connection portion'g', which second connection portion'g' is detachably mounted through magnetic force on a lower surface'j' of the first connection portion'c'.
  • the arrangement by which the auxiliary glasses are detachably mounted through magnetic force on the principal glasses is as follows: as shown in Figure 21, first magnetic buttons of round shape'k and k' being embedded substantially flush with the lower surface'j' of the first connection portion'c' on the right and left ends thereof while second magnetic buttons of round shape'm and m' being embedded substantially flush with the upper surface'n' of the second connection portion'g' on the right and left ends thereof; the first magnetic buttons'k and k' being attached onto the second magnetic buttons 'm and m' with the upper surface'n' overlapped over the lower surface'j', thereby, the auxiliary glasses'h' being detachably mounted on the principal glasses'd'.
  • the resinous surface tension causes a central portion of the coated surfaces 't' to be roundly bulged out, so that the first upper and second lower magnetic buttons 'k' and 'm' result in making into a point contact so as to make the condition of magnetic attachment between the auxiliary glasses and the principal ones unstable.
  • the present invention is to provide eyeglasses with forefront hanging glasses that not only make the principal glasses look better, but also allow the auxiliary glasses to be magnetically mounted onto the principal ones in an easy and stable manner.
  • the present invention is to provide such eyeglasses that prevent the magnetic surfaces from being rusted and allow the auxiliary and principal glasses to be magnetically attached on each other in a stable manner.
  • the present invention is to provide such eyeglasses that allow production efficiency to improve and production cost to reduce with such high-quality features as mentioned above maintained.
  • the present invention is characterized in comprising a pair of principal glasses whose right and left lenses are connected with a first connection portion; and a pair of auxiliary glasses whose right and left auxiliary lenses are connected with a second connection portion to cover frontal surfaces of the right and left lenses of the principal glasses with, wherein the second connection portion is magnetically and detachably mounted onto a lower surface of the first connection portion and one recessed portion opened only at a lower end thereof is provided at least in a longitudinal middle part of the lower surface of the first connection portion, into which recessed portion a first magnetic piece is fixed, wherein the first magnetic piece is received in the recessed portion with a lower surface thereof flat and an adhesive is filled into a gap between side surfaces of the first magnetic piece and inner side surfaces of the recessed portion, thereby, the first magnetic piece being fixed in the recessed portion, wherein the lower surface of the first magnetic piece forms a first magnetic surface and a second magnetic piece whose upper
  • the present invention Viewed from the second aspect of eyeglasses with forefront hanging glasses according to the present invention, it is characterized in comprising a pair of principal glasses whose right and left lenses are connected with a first connection portion; and a pair of auxiliary glasses whose right and left auxiliary lenses are connected with a second connection portion to cover frontal surfaces of the right and left lenses of the principal glasses with, wherein the second connection portion is magnetically and detachably mounted onto a lower surface of the first connection portion and one recessed portion opened only at a lower end thereof is provided at least in a longitudinal middle part of the lower surface of the first connection portion, into which recessed portion a first magnetic piece is fixed, wherein a lower surface of the first magnetic piece is formed flat and frontal and rear salient portions of a resinous protective tape attached on the lower surface of the first magnetic piece such that it covers the lower surface as a whole are folded so as to be attached onto the frontal and rear side surfaces of the first magnetic piece, wherein a lower surface of the protective tape attached onto the lower surface of the first
  • the present invention Viewed from the third aspect of eyeglasses with forefront hanging glasses according to the present invention, it is characterized in comprising a pair of principal glasses whose right and left lenses are connected with a first connection portion; and a pair of auxiliary glasses whose right and left auxiliary lenses are connected with a second connection portion to cover frontal surfaces of the right and left lenses of the principal glasses with, wherein the second connection portion is magnetically and detachably mounted onto a lower surface of the first connection portion and one recessed portion opened only at a lower end thereof is provided at least in a longitudinal middle part of the lower surface of the first connection portion, into which recessed portion a first magnetic piece is fixed, wherein the first magnetic piece is provided with end portions having a semi-circularly protrusive surface on right and left sides of a middle part thereof having a rectangular or square shape in plan view, wherein a lower surface of the first magnetic piece is formed flat and frontal and rear salient portions of a resinous protective tape attached on the lower surface of the first magnetic piece such that it covers
  • the first magnetic surface corresponding to the lower surface of the first magnetic piece comprises one of the lower surface itself and a flat lower surface of a coat member covering the lower surface.
  • the second magnetic surface corresponding to the upper surface of the second magnetic piece comprises one of the upper surface itself and a flat upper surface of a coat member covering the upper surface.
  • the first connection portion is curved forwardly while the recessed portion is curved along a fringe portion of the first connection portion, into which recessed portion a curved first magnetic piece is received substantially in a tight manner.
  • the first magnetic piece may be mounted into the recessed portion of the principal glasses with the former hidden in the latter so that there arises a space between the lower surface of the first connection portion and the first magnetic surface while the second magnetic piece may be mounted into the second connection portion of the auxiliary glasses with the former protruded upwards by a height corresponding to such space from the second connection portion.
  • the second magnetic surface may be magnetically attached onto the first magnetic surface with the salient portion of the second magnetic piece mounted into such space.
  • the invention brings the following favorable effects.
  • (1) The first magnetic piece is fixed in the recessed portion provided in the lower surface of the first connection portion comprising the principal glasses, so that such magnetic piece is exposed only on the lower surface of the first connection portion. Accordingly, such pair of forefront hanging glasses as to make the principal glasses look better is provided.
  • the fact that the first magnetic piece provided on the first connection portion and the second magnetic piece provided on the second connection portion are both single in number facilitates the first magnetic surface corresponding to the lower surface of the first magnetic piece and the second magnetic surface corresponding to the upper surface of the second magnetic piece to be flatly formed with precision, which allows such flat surfaces to be made into a magnetic face to face contact.
  • the present invention permits the pair of auxiliary glasses to be mounted into the principal glasses in a stable manner with magnetic force of the first and second magnetic pieces made the most of.
  • the fact that the first magnetic piece is provided on the first connection portion and the second magnetic piece is provided on the second connection portion defines the only one positional relationship between the first and second magnetic pieces when they are magnetically attached on each other. According to the present invention, just with the magnetic pieces magnetically attached on each other, it allows the auxiliary glasses to be mounted onto the principal glasses with the former positioned with regard to the latter as required.
  • the fact that there is provided only one first magnetic piece on the first connection portion allows the size of the magnetic piece embedded in the recessed portion to be enlarged according to the length of such portion, which increases a magnetic area of such piece.
  • the present invention makes a magnetic force as required according to the weight, largeness and so forth of the auxiliary glasses adjusted, which allows the auxiliary glasses to be mounted onto the principal glasses in a stable manner.
  • a protective tape is attached on the lower surface (magnetic surface) of the first magnetic piece with such surface as a whole covered therewith; frontal and rear salient portions of such tape are folded so as to be attached onto the side surfaces of the magnetic piece; the magnetic piece on which such tape is attached is received in the recessed portion with the lower surface of such tape flatly embedded therein; an adhesive made from epoxy resin and so forth is filled in a gap between the side surfaces of the magnetic piece and the inner surfaces of the recessed portion, the lower surface of the protective tape attached on the lower surface of the magnetic piece forms a flat magnetic surface (the first magnetic surface).
  • such tape prevents the magnetic pieces from being rusted and the fact that such tape is attached on the lower surface of the magnetic piece mitigates impact upon such pieces being magnetically attached onto each other, thereby, the lower surface of the magnetic piece (magnetic surface) being protected even when a pair of the auxiliary glasses is repetitively attached or detached.
  • the fact that the magnetic piece is received and adhesively fixed in the recessed portion with the frontal and rear salient portions of the protective tape attached onto the frontal and rear sides surfaces of the magnetic piece arises a buffer effect brought by such tape. That is to say, such tape mitigates impact applied to the cured adhesive made from epoxy resin etc. filled in the gap between the side surfaces of the magnetic piece and the inner surfaces of the recessed portion, which results in stably maintaining the fixed state of the magnetic piece.
  • Fig.1 is a perspective view to show eyeglasses with forefront hanging glasses comprising the principal glasses and the auxiliary glasses according to the invention.
  • Fig.2 is a perspective view to show the state where the auxiliary glasses are mounted onto the principal glasses.
  • Fig.3 shows perspective and cross-sectional views to explain the structure by which the first magnetic piece is fixed in the first connection portion.
  • Fig.4 show perspective and cross-sectional views to explain the structure by which the second magnetic piece is fixed in the second connection portion.
  • Fig.5 is a cross-sectional view to explain the state where the first magnetic surface of the first connection portion and the second magnetic surface of the second connection portion are magnetically attached on each other.
  • Fig.6 is a partly perspective view to show another example of eyeglasses with forefront hanging glasses according to the invention.
  • Fig.7 is a perspective view to explain the process in which the first magnetic piece whose lower surface is covered with the protective tape is fixed in the recessed portion of the first connection portion of the principal glasses.
  • Fig. 8 shows perspective and cross-sectional views to show the state where the first magnetic piece is fixed in the recessed portion of the first connection portion.
  • Fig. 9 shows perspective and cross-sectional views to show the process in which the second magnetic piece is fixed in the second connection portion of the auxiliary glasses.
  • Fig.10 is a cross-sectional view to explain the state where the first magnetic surface of the first connection portion and the second magnetic surface of the second connection portion are magnetically attached on each other.
  • Fig.11 is a perspective view to show eyeglasses with forefront hanging glasses with a flip up means.
  • Fig.12 is a cross-sectional view showing the state where the auxiliary glasses are flipped up.
  • Fig.13 is a cross-sectional view showing the state where the second magnetic piece coated with the protective tape is fixed in the second connection portion with the first magnetic piece magnetically attached onto the second magnetic piece.
  • Fig.14 is a cross-sectional view showing another example of the flat first and second magnetic surfaces.
  • Fig. 15 shows perspective and bottom surface views of another example of the first magnetic piece coated with the protective tape and a cross-sectional view showing the state where the first magnetic piece is fixed in the recessed portion.
  • Fig.16 shows perspective and bottom surface views of another example of the first magnetic piece coated with the protective tape and a cross-sectional view showing the state where the first magnetic piece is fixed in the recessed portion.
  • Fig.17 shows perspective and bottom surface views of another example of the recessed portion and the first magnetic piece.
  • Fig.18 is a cross-sectional view showing the state where the first magnetic piece is attached through a double-coated adhesive tape on the bottom surface of the recessed portion.
  • Fig.19 is a cross-sectional view showing the structure in which the first magnetic surface is magnetically attached onto the second magnetic surface.
  • Fig.20 is a cross-sectional view showing another structure in which the first magnetic surface is magnetically attached onto the second magnetic surface.
  • Fig.21 is a perspective view showing one example of the prior eyeglasses with forefront hanging glasses.
  • Fig.22 is a cross-sectional view to explain the problem caused when epoxy resin is coated on the magnetic surface.
  • the principal glasses 2 as shown in Figures 1 to 3, comprise a pair of rimless spectacles whose lower rim is missing.
  • the right and left lenses 5 and 5 are interconnected with the first connection portion 6, which lenses are held in place with the end portions 15 and 15 of the cord 13 mounted on the lower rim portion 12 of the lens 7 clamped in respective ends 11 and 11 of the rim 10 mounted on the lens 7.
  • one comparatively large and longitudinally extending rectangular recessed portion 21 provided with semi-circular recessed surfaces 20 and 20 on the right and left sides thereof is formed at least in the longitudinal middle portion 14 of the flat lower surface 16 of the first connection portion 6 (in the middle portion and the longitudinally extending right and left side portions thereof in the present example), the bottom surface (top surface) 17 of which is flatly formed and only the lower side 19 of which opens.
  • One first magnetic piece 22 is mounted into the recessed portion 21 and adhesively fixed therein.
  • the first magnetic piece 22 as shown in Figure 3(A), comprises a middle portion 22a having a rectangular shape in plan view and end portions 22b and 22b provided on both ends of the middle portion 22a, the end portions respectively having a semi-circular protrusive surface 23 that substantially abuts to the semi-circular recessed surface 20.
  • the lower surface 25 and the upper surface 26 of the first magnetic piece 22 are flatly formed.
  • the length of a shorter side of the recessed portion 21 is 2.0mm and that of a longer side thereof is 8.8mm as well as the depth thereof is 1.5mm while the length of a shorter side of the first magnetic piece 22 is 1.8mm and that of a longer side thereof is 8.6mm as well as the thickness thereof is 1.5mm.
  • the first magnetic piece 22 is received in the recessed portion 21 with the lower surface 25 thereof flat.
  • An adhesive (e.g. made from epoxy resin) 31 is filled in a gap 30 between the side surfaces 27 of the first magnetic piece 22 and the inner side surfaces 29 of the recessed portion 21.
  • the lower surface 25 itself of the first magnetic piece 22 received in the recessed portion 21 and adhesively fixed therein defines a first flat magnetic surface 32, which surface is flush with or slightly protrudes from the lower surface 16 of the first connection portion 6.
  • the first magnetic surface may protrude in the order of 0.1mm to 0.2mm. That is to say, the first magnetic surface 32 is flush with the lower surface 16 of the first connection portion 6.
  • the first magnetic piece 22 provided on the lower surface 16 of the first connection portion 16, as shown in Figure 1(B), does not expose from the upper surface 28 or the side surface 34 of the first connection portion 6, but exposes only from the lower surface 16 of the first connection portion 6, so that there is no case where the first magnetic piece 22 does damage on the appearances of the principal glasses 2.
  • the auxiliary glasses 3 may be provided with light-shielding, polarization, vision correction or 3D display functions and as such.
  • they are a pair of sunglasses whose right and left auxiliary lenses 37 and 37 covering the frontal surfaces 36 and 36 of the right and left lenses 5 and 5 of the principal glasses are connected with the second connection portion 39.
  • the middle portion 40 of the upper surface 45 of the second connection portion 39 is arranged such that it overlaps over the middle portion 14 of the lower surface 16 of the first connection portion 6, at least in which middle portion 40 (in the middle portion thereof and the right and left portions successively continuing therefrom) a substantially elliptical get-through hole 42 provided with the semi-circular recessed surfaces 41 and 41 on the right and left ends thereof is disposed.
  • one second magnetic piece 43 having the same configuration as the first magnetic piece 22 is pressed into the get-through hole 42 and the upper surface 38 itself of the second magnetic piece 43 defines the second flat magnetic surface 46 (see Figure 4 (B) and (C)).
  • the first magnetic surface 32 and the second magnetic surface 46 having opposite polarity are magnetically attached face to face on and flush with each other in a stable manner, thereby, the auxiliary glasses 3 being magnetically and detachably mounted onto the principal glasses 2.
  • the first magnetic piece 22 mounted on the first connection portion 6 is one, so that differently from the prior art where a plurality of magnetic pieces are mounted thereon, only one recessed portion 21 to fix such piece therein is required, which lightens production labor. Further, the first magnetic piece 22 is mounted in the recessed portion 21 with precision and ease with the lower surface 25 thereof (the first magnetic surface 32) flat, which improves on production efficiency. Using only one magnetic piece allows a magnetic area to be increased according to the length of the recessed portion 21, which in turn permits magnetically attracted force between the first and second magnetic surfaces 32 and 46 to be enhanced according to the weight, shape and so forth of the auxiliary glasses 3, which improves on the stability of the auxiliary glasses on the principal glasses.
  • the fact that one first magnetic piece 22 is provided at least in the longitudinal middle portion 14 of the lower surface 16 of the first connection portion 6 and one second magnetic piece 43 is provided at least in the longitudinal middle portion of the upper surface 45 of the second connection portion 39 defines the only one positional relationship between the first and second magnetic pieces 22 and 43, which allows the auxiliary glasses 3 to be mounted onto the principal glasses 2 with the former positioned to the latter as required.
  • a magnetic section comprising an iron piece other than magnetic pieces is provided on the second connection portion 39, even when the magnetic section of such portion might be magnetically attached onto the first magnetic piece 22, the latter is magnetically attracted to the former in its longitudinal arbitrary positions, which is not necessarily the case where they are in the only one positional relationship as mentioned before, so that fine tuning of the mounting condition is required.
  • the magnetic pieces are mutually attracted to each other, so that the first magnetic piece 22 and the second magnetic piece 43 are magnetically attached on each other in the only one positional relationship between them.
  • Figures 6 to 9 show another example of eyeglasses with forefront hanging glasses 1 according to the invention, in which the auxiliary glasses 3 are magnetically and detachably mounted onto the principal glasses 2.
  • the principal glasses 2 have the same constitution as that explained in Example 1, so that the same reference numerals are used for the same structural components, the explanation of which is omitted to avoid redundancy.
  • the first magnetic piece 22 fixed on the first connection portion 6 is, as shown in Figure 7, takes the shape of a rectangular parallelepiped longitudinally extending and provided with vertically flat surfaces 44 and 44 on the right and left ends thereof, by way of one example.
  • the lower surface and upper surfaces 25 and 26 of the first magnetic piece 22 are flatly formed.
  • the protective tape 47 made from resin is attached on the lower surface 25 with such surface covered as a whole, and the frontal and rear salient marginal portions 49 and 49 of the tape 47 are folded so as to be attached on e.g. the lower side portions 52 and 53 of the frontal and rear side surfaces 50 and 51 of the first magnetic piece 22.
  • the salient portions they may well be attached on the frontal and rear side surfaces 50 and 51 as a whole.
  • the length of a shorter side of the former is 2.0mm and that of a longer side thereof is 8.6mm as well as the depth thereof is 1.5mm while that of a shorter side of the latter is 1.8mm and that of a longer side thereof is 6.6mm as well as the thickness thereof is 1.5mm.
  • the protective tape 47 for example, is made of a transparent polyester tape and e.g. in the order of 30 to 50 micrometer in thickness as well as soft, elastic and strong.
  • the first magnetic piece 22 on which the protective tape 47 is coated is received in the recessed portion 21 with the lower surface 55 of the protective tape 47 flat, and an adhesive 31 (e.g. made from epoxy resin) is filled in a gap 30 between the side surfaces 50 and 51 of the first magnetic piece 22 and the inner surfaces 29 of the recessed portion 21.
  • an adhesive 31 e.g. made from epoxy resin
  • the lower surface 55 of the tape 47 is flush with the lower surface 16 of the first connection portion 6.
  • the lower surface 55 (the lower surface of the coat member 48) of the protective tape 47 attached on the lower surface 25 of the first magnetic piece 22 received in and adhesively fixed in the recessed portion 21 provided on the lower surface 16 of the first connection portion 6 defines a flat first magnetic surface 32, which surface is flush with or slightly protrudes from the lower surface 16 of the first connection portion 6.
  • such surface protrudes in the order of the thickness of the tape 47 (30 to 50 micrometer). That is to say, the first magnetic surface 32 is flush with the lower surface 16 of the first connection portion 6.
  • the first magnetic piece 22 provided on the lower surface 16 of the first connection portion 6 does not expose from the upper surface 28 or the side surfaces 34 and 34 of the first connection portion 6, but exposes only from the lower surface 16 thereof, so that there is no case where the first magnetic piece does damage on the appearances of the principal glasses 2.
  • the protective tape 47 prevents the plating of the lower surface 25 of the first magnetic piece 22 from being peeled off and the magnetic piece from being rusted.
  • the tape 47 is attached only on the lower surface 25 of the first magnetic piece 22, there is likelihood that such tape might be detached from the fringe portion 57 thereof.
  • the frontal and rear salient marginal portions 49 and 49 of the tape 47 are folded, which folded portions are attached onto the frontal and rear side surfaces 50 and 51 of the first magnetic piece 22, e.g. the lower side portions 52 and 53 thereof.
  • the first magnetic piece 22 on which the tape 47 is attached is mounted into the recessed portion 21.
  • an adhesive 31 (made from epoxy resin, for instance) is filled in the gap between the side surfaces 50, 51, 54 and 54 of the first magnetic piece 22 and the inner surfaces 29 of the recessed portion 21 such that the first magnetic piece 22 is adhesively fixed into the recessed portion 21.
  • the first magnetic piece 22 is so small that it can be fixed in the first connection portion 6 small in size, so that an area of the lower surface 25 thereof is small. Accordingly, the tape is vulnerable to being peeled off just with the same attached only on the lower surface 25. However, arranging the salient portions of the tape 47 as mentioned above prevents that attached on the lower surface 25 from being peeled off.
  • auxiliary glasses 3 may be provided with light shielding, polarization, vision correction and 3D display functions in the same way as explained in Example 1.
  • they are a pair of sunglasses, the right and left auxiliary lenses 37 and 37 of which covering the frontal surfaces 36 and 36 of the right and left lenses 5 and 5 are connected with the second connection portion 39, as shown in Figures 1 and 9.
  • the longitudinal middle portion 40 of the upper surface 45 of the second connection portion 39 is arranged such that it overlaps over the lower surface 16 of the first connection portion 6, at least in which middle portion 40 (in the middle portion 40 and the right and left sides portions extending from such portion, in the present example) a rectangular get-through hole 42 is provided, into which hole one second magnetic piece 43 taking the same shape of a rectangular parallelepiped as the first magnetic piece 22, is pressed, as shown in Figure 9(B) and (C), so that the upper surface 39 itself of the second connection portion 39 forms the second flat magnetic surface 46.
  • the first magnetic surface 32 and the second magnetic surface 46 having opposite polarity are magnetically attached face to face on each other in a stable manner, which allows the auxiliary glasses 3 to be magnetically and detachably mounted onto the principal glasses 2.
  • the protective tape 47 is attached on the lower surface 25 of the first magnetic piece 22, so that impact applied on the first magnetic piece 22 when the second magnetic piece 43 is magnetically attached on the same is mitigated, which results in protecting the lower surface (magnetic surface) 25 of the first magnetic piece 22 even when the auxiliary glasses 3 might be repetitively attached or detached.
  • the first magnetic piece 22 mounted into the first connection portion 6 is one, differently from the prior art where a plurality of magnetic pieces are mounted, only one recessed portion 21 is required for fixing the magnetic piece, which lightens production labor and facilitates the magnetic piece 22 to be mounted into the recessed portion 21 with precision and ease with the lower surface 25 thereof flat, with the result that production efficiency improves.
  • Using only one magnetic piece allows an area of magnetic attachment to be increased according to the length of the recessed portion 21, which in turn permits the magnetic attachment force between the first and second magnetic surfaces 32 and 46 to be enhanced according to the weight, shape and so forth of the auxiliary glasses 3, which leads to favorably stabilizing the magnetically attached condition between those surfaces.
  • first magnetic piece 22 of the first connection portion 6 and the second magnetic piece 43 of the second connection portion 39 are magnetically strongly attached on each other as well as one first magnetic piece 22 is provided at least in the longitudinal middle portion of the lower surface 16 of the first connection portion 6 and one second magnetic piece 43 is provided at least in the longitudinal middle portion of the upper surface 45 of the second connection portion 39, in the same way as explained in Example 1, makes the first magnetic piece 22 and the second magnetic piece 43 magnetically attached on each other in the only one positional relationship between them, which permits the auxiliary glasses 3 to be stably positioned with regard to the principal glasses 2 as required.
  • the first magnetic piece 22 is received in the recessed portion 21 and adhesively fixed therein with the salient portions 49 and 49 of the tape 47 attached on the frontal and rear side surfaces 50 and 51 of the first magnetic piece 22, so that buffer effect brought by the tape 47 attached on the side surfaces 50 and 51 is effective to mitigate impact applied on the cured matter 59 made from an epoxy resin adhesive and as such filled in the gap 30, which leads to stably maintaining the adhesively fixed condition of the magnetic piece.
  • Figures 11 and 12 show the case where a pair of eyeglasses with forefront hanging glasses according to the invention are provided with a flip-up means.
  • the longitudinally extending recessed portion 21, the lower end of which opens, is provided at least in the longitudinal middle portion 14 (in the middle portion and the right and left sides portions extending from that portion) of the lower surface 16 of the first connection portion 6 of the principal glasses 2 arranged in the same way as the previous embodiments.
  • the first magnetic piece 22, in the same way as the previous examples, is fixed into the recessed portion 21.
  • auxiliary glasses 3 as shown in Figure 12, are arranged such that their right and left auxiliary lenses 37 and 37 rotate within an angle range from where they cover the frontal surfaces 36 and 36 of the right and left lenses 5 and 5 to where they are flipped up, so that those glasses 3 are held with a flip- up angle as desired.
  • auxiliary glasses 3 With the auxiliary glasses 3, as shown in Figure 11 (A), axially receiving protrusive portions 60 and 60 are provided on the right and left ends of the upper side portion of the second connection portion 39 interconnecting the right and left auxiliary lenses 37 and 37, between which portions 60 the mount-insert recessed portion 61 is provided while the mount-insert convex portion 63 provided with the holder 62 is mounted into the recessed portion 61.
  • the upper and lower interposing pieces 65 and 66 are oppositely provided in a protrusive manner on the upper and lower portions of the rear side of the holder 62, between which interposing pieces 65 and 66 the receiving groove 67 to receive the first connection portion 6 of the principal glasses 2 is provided.
  • one second magnetic piece 43 is provided at least in the longitudinal middle portion 40 (in the middle portion 40 and the right and left sides interposing such portion in the present embodiment) of the upper surface 45 of the second connection portion 39 in such a manner that the second magnetic piece 43 is, for instance, adhesively fixed on the upper surface 69 of the lower interposing piece 66.
  • the auxiliary glasses 3 may be rotatable within an angle range from the state where the auxiliary lenses 37 and 37 cover the frontal surfaces 36 and 36 of the lenses 5 and 5 to that where the auxiliary lenses 37 and 37 are flipped up.
  • first magnetic surface 32 which is in turn the lower surface 25 of the first magnetic piece 22 being the lower surface itself, as shown in Figure 3
  • it may be formed as the flat lower surface of the coat member 44 covering the lower surface 25, as shown in Figure 7.
  • second magnetic surface 46 which is turn the upper surface 38 of the second magnetic piece 43 being the upper surface itself, as shown in Figure 4
  • it may be formed as the flat upper surface of the coat member 74 covering the upper surface 38, as shown in Figure 13.
  • coat members 44 and 47 being formed of the attached protective tape 47 as mentioned above, they may be formed with coat pieces attached or baking finish of a sprayed resin.
  • the first connection portion 6 and the second connection portion 39 may be made from metal or resin.
  • recessed portion 21 provided at least in the longitudinal middle portion 14 of the lower surface 16 of the first connection portion 6 extending right to left as mentioned above, it may be formed into a square shape and provided only in the middle portion 14, in which recessed portion 21 having such square shape the first magnetic piece 22 having a square or cubic shape is substantially tightly received so as to be adhesively fixed therein.
  • Figure 13 (A) shows the recessed portion 68 provided at least in the longitudinal middle portion of the upper surface 45 of the second connection portion 39 in the same way as the first connection portion 6 and the second magnetic piece 43 adhesively fixed into the recessed portion 68.
  • the frontal and rear salient portions 70 and 70 of the same protective tape 47 made from a resin as mentioned above that is attached on the upper surface 38 of the second magnetic piece 43 such that it covers the surface 38 as a whole are folded so as to be attached on the frontal and rear side surfaces 71 and 72 of the second magnetic piece 43.
  • the flat first magnetic surface 32 of the first connection portion 6 and the second magnetic surface 46 may be formed with slight inclination (also included in the flat surface defined by this invention) by way of example.
  • the first magnetic piece 22 as shown in Figures 15 (A) and (B) as well as Figures 16 (A) and (B), is provided with end portions 85 and 85 respectively having a semi-circular salient surface on the right and left edge surfaces 83 thereof extending from the middle portion 82a having a rectangular shape in plan view or from that 82b having a square shape in plan view with the lower surface 25 of the first magnetic piece 22 presenting flatly, in which case besides the protective tape 47 being attached on the lower surface 25 such that it covers the surface 25 as a whole, the tape 47 may cover the lower surfaces 25a and 25b of the middle portions 82a and 82b only.
  • the salient portions 49 and 49 of the tape 47 are folded so as to be attached on the frontal and rear side surfaces 50 and 51 of the first magnetic piece 22, in which the lower surface 45 (the lower surface of the coat member 44) of the tape 47 that is attached on the lower surface 25 forms the first magnetic surface 32.
  • Figures 15(C) and 16(C) shows the first magnetic piece 22 received in the same recessed portion 21 as shown in Figure 3(A) so as to be adhesively fixed therein.
  • first magnetic piece 22 may curve or bend along the outer circumference of the first connection portion 6.
  • first connection portion 6 convexly curves forwards in the meantime the recessed portion 21 curves along the fringe portion 89 of the first connection portion 6, thereby, a curved first magnetic piece 22 being substantially tightly received in the curved recessed portion 21.
  • the protective tape 47 may be transparent or colored.
  • Figure 18 shows a double-coated adhesive tape 86 (e.g., having a thickness in the order of 0.2 to 0.25mm) attached on the upper surface 26 of the first magnetic piece 22 and the upper adhesive surface 87 thereof attached on the bottom surface (top surface) 17 of the recessed portion 21 (see Figure 18(B)), which further improves on the strength with which the first magnetic piece 22 is fixed into the recessed portion 21.
  • a double-coated adhesive tape 86 e.g., having a thickness in the order of 0.2 to 0.25mm
  • Figure 19 (A) shows the first magnetic piece 22 mounted into the recessed portion 21 of the principal glasses 2 with the former hidden in the latter so that there arises a space (e.g. in the order of 0.5mm) between the lower surface of the first connection portion 6 and the first magnetic surface 32 while the second magnetic piece 43 mounted into the second connection portion 39 of the auxiliary glasses 3 with the former protruded upwards by a height corresponding to such space from the second connection portion 39.
  • a space e.g. in the order of 0.5mm
  • the second magnetic surface 46 may be magnetically attached onto the first magnetic surface 32 with the salient portion of the second magnetic piece 43 mounted into such space of the recessed portion 21, which prevents the second connection portion 39 from being displaced right and left as well as back and forth with regard to the first connection portion 6 so as to result in hampering the auxiliary glasses 3 to which external force might be applied from being detached from the principal glasses.
  • the mount-inserting structure of the second magnetic piece 43 as mentioned above may be applied to the second connection portion 39 provided with the holder 62, in which case the second connection portion 39 is stably fixed into place without fluctuation, even when the height of the first connection portion 6 might be smaller than an interval between the upper and lower interposing pieces 65 and 66 as shown in Figure 20 (B).

Abstract

Such a pair of eyeglasses with forefront hanging glasses is provided as the auxiliary glasses being able to be detachably mounted through magnetic force on the principal glasses in an easy and secure manner and without damaging on the appearance of the principal glasses. The eyeglasses with forefront hanging glasses comprise the principal glasses 2 whose lenses 5 and 5 are interconnected with the first connection portion 6; and the auxiliary glasses 3 whose lenses 37 and 37 are interconnected with the second connection portion 39. The second connection portion 39 is magnetically and detachably mounted into the lower surface of the first connection portion 6. The sole first magnetic piece 22 is received into the sole recessed portion 21 provided on the lower surface of the first connection portion 6 so as to be adhesively fixed therein. The sole second magnetic piece 43 is provided on the upper surface of the second connection portion 39. The flat first magnetic surface 32 corresponding to the lower surface of the first magnetic piece 22 is magnetically attached into the flat second magnetic surface 46 cor- responding to the upper surface of the second magnetic piece 43.

Description

EYEGLASSES WITH FOREFRONT HANGING GLASSES
The present invention relates to eyeglasses with forefront hanging glasses, in more details, pertaining to such eyeglasses as the auxiliary glasses being able to be detachably mounted through magnetic force on the principal glasses in an easy and secure manner and without damaging on the appearance of the principal glasses.
Such auxiliary glasses acting as light shielding or polarizing glasses are disclosed in Japanese Utility Model Registration Laid-open No.3059988 and especially shown in Figure 5 thereof as arranged such that such auxiliary glasses being detachably mounted through magnetic force on the principal glasses. This pair of eyeglasses with forefront hanging glasses'a', as shown in Figure 21, comprises principal glasses'd' whose right and left lenses'b and b' are connected with a first connection portion'c'; auxiliary glasses'h' whose right and left lenses'f and f' to cover frontal surfaces'e and e' of the lenses'b and b' are connected with a second connection portion'g', which second connection portion'g' is detachably mounted through magnetic force on a lower surface'j' of the first connection portion'c'. The arrangement by which the auxiliary glasses are detachably mounted through magnetic force on the principal glasses is as follows: as shown in Figure 21, first magnetic buttons of round shape'k and k' being embedded substantially flush with the lower surface'j' of the first connection portion'c' on the right and left ends thereof while second magnetic buttons of round shape'm and m' being embedded substantially flush with the upper surface'n' of the second connection portion'g' on the right and left ends thereof; the first magnetic buttons'k and k' being attached onto the second magnetic buttons 'm and m' with the upper surface'n' overlapped over the lower surface'j', thereby, the auxiliary glasses'h' being detachably mounted on the principal glasses'd'.
With such eyeglasses with forefront hanging glasses as mentioned above, the fact that the first magnetic buttons'k and k' are disposed neither in the upper surface'p' nor in the side surface'q' of the connection portion 'c' of the principal glasses 'd', but in the lower surface 'j' thereof results in such magnetic buttons being not visibly shown, which advantageously prevents such buttons from doing damage on the appearance of the principal glasses 'd'.
However, the problem with such eyeglasses with forefront hanging glasses as above lies in that the state in which such auxiliary glasses are mounted on the principal glasses is not so firm as expected, so that the auxiliary glasses are prone to be inadvertently detached from the principal glasses. This is derived from the fact that the first magnetic buttons 'k and k' are independently embedded on the right and left ends of the lower surface 'j' while the second magnetic buttons 'm and m' are independently embedded on the right and left ends of the upper surface 'n' and such magnetic buttons are so small that working error to form recessed portions in which they are embedded affects badly the precision with which they are embedded, which results in failing in such buttons 'k and k' as well as 'm and m' being embedded with precision as required.
Unless such four magnetic buttons are embedded with precision, even when one of the pair of the first and second buttons 'k and m' might be securely attached onto each other, the other pair is prone to making into a point contact so as to be placed into an unstable condition, which results in making the auxiliary glasses 'h' inadvertently detached from the principal glasses 'd'.
The other problem with the prior art is caused by the fact that the magnetic surfaces on which nickel is normally plated to prevent them from being rusted are prone to be rusted because such nickel plating is peeled off according as the auxiliary glasses are repetitively attached on and detached from the principal glasses or on account that such surfaces collide with each other with impact. To prevent corrosion, such means as shown in Figure 22 has been thought up as an epoxy resin 's' being coated on the magnetic surfaces 'r' so as to enhance anti-corrosion. However, in this case, the resinous surface tension causes a central portion of the coated surfaces 't' to be roundly bulged out, so that the first upper and second lower magnetic buttons 'k' and 'm' result in making into a point contact so as to make the condition of magnetic attachment between the auxiliary glasses and the principal ones unstable.
Japanese Utility Model Registration Laid-open No.3059988.
In view of the above-mentioned inconveniences accompanied with the prior art, the present invention is to provide eyeglasses with forefront hanging glasses that not only make the principal glasses look better, but also allow the auxiliary glasses to be magnetically mounted onto the principal ones in an easy and stable manner.
Further, the present invention is to provide such eyeglasses that prevent the magnetic surfaces from being rusted and allow the auxiliary and principal glasses to be magnetically attached on each other in a stable manner.
Furthermore, the present invention is to provide such eyeglasses that allow production efficiency to improve and production cost to reduce with such high-quality features as mentioned above maintained.
In order to solve such issues, viewed from the first aspect of eyeglasses with forefront hanging glasses according to the present invention, it is characterized in comprising a pair of principal glasses whose right and left lenses are connected with a first connection portion; and a pair of auxiliary glasses whose right and left auxiliary lenses are connected with a second connection portion to cover frontal surfaces of the right and left lenses of the principal glasses with, wherein the second connection portion is magnetically and detachably mounted onto a lower surface of the first connection portion and one recessed portion opened only at a lower end thereof is provided at least in a longitudinal middle part of the lower surface of the first connection portion, into which recessed portion a first magnetic piece is fixed, wherein the first magnetic piece is received in the recessed portion with a lower surface thereof flat and an adhesive is filled into a gap between side surfaces of the first magnetic piece and inner side surfaces of the recessed portion, thereby, the first magnetic piece being fixed in the recessed portion, wherein the lower surface of the first magnetic piece forms a first magnetic surface and a second magnetic piece whose upper surface is flat is provided at least in a longitudinal middle part of an upper surface of the second connection portion, wherein a second magnetic surface corresponding to the upper surface of the second magnetic piece is magnetically attached face to face onto the first magnetic surface.
Viewed from the second aspect of eyeglasses with forefront hanging glasses according to the present invention, it is characterized in comprising a pair of principal glasses whose right and left lenses are connected with a first connection portion; and a pair of auxiliary glasses whose right and left auxiliary lenses are connected with a second connection portion to cover frontal surfaces of the right and left lenses of the principal glasses with, wherein the second connection portion is magnetically and detachably mounted onto a lower surface of the first connection portion and one recessed portion opened only at a lower end thereof is provided at least in a longitudinal middle part of the lower surface of the first connection portion, into which recessed portion a first magnetic piece is fixed, wherein a lower surface of the first magnetic piece is formed flat and frontal and rear salient portions of a resinous protective tape attached on the lower surface of the first magnetic piece such that it covers the lower surface as a whole are folded so as to be attached onto the frontal and rear side surfaces of the first magnetic piece, wherein a lower surface of the protective tape attached onto the lower surface of the first magnetic piece forms a first magnetic surface, wherein the first magnetic piece on which the protective tape is attached is received in the recessed portion with the lower surface of the protective tape flat and an adhesive is filled into a gap between side surfaces of the first magnetic piece and inner side surfaces of the recessed portion, thereby, the first magnetic piece being fixed in the recessed portion, wherein a second magnetic piece with an upper surface thereof flat is provided at least in a longitudinal middle part of an upper surface of the second connection portion, wherein a second magnetic surface corresponding to the upper surface of the second magnetic piece is magnetically attached face to face on the first magnetic surface.
Viewed from the third aspect of eyeglasses with forefront hanging glasses according to the present invention, it is characterized in comprising a pair of principal glasses whose right and left lenses are connected with a first connection portion; and a pair of auxiliary glasses whose right and left auxiliary lenses are connected with a second connection portion to cover frontal surfaces of the right and left lenses of the principal glasses with, wherein the second connection portion is magnetically and detachably mounted onto a lower surface of the first connection portion and one recessed portion opened only at a lower end thereof is provided at least in a longitudinal middle part of the lower surface of the first connection portion, into which recessed portion a first magnetic piece is fixed, wherein the first magnetic piece is provided with end portions having a semi-circularly protrusive surface on right and left sides of a middle part thereof having a rectangular or square shape in plan view, wherein a lower surface of the first magnetic piece is formed flat and frontal and rear salient portions of a resinous protective tape attached on the lower surface of the first magnetic piece such that it covers the middle part of the lower surface only are folded so as to be attached on frontal and rear side surfaces of the first magnetic piece, thereby, a lower surface of the protective tape attached on the lower surface of the first magnetic piece forming a first magnetic surface, wherein the first magnetic piece on which the protective tape is attached is received in the recessed portion with a lower surface of the tape flat and an adhesive is filled in a gap between side surfaces of the first magnetic piece and the inner side surfaces of the recessed portion, thereby, the first magnetic piece being fixed in the recessed portion, wherein a second magnetic piece with an upper surface thereof flat is provided at least in a longitudinal middle part of an upper surface of the second connection portion, thereby, a second magnetic surface corresponding to the upper surface of the second magnetic piece being magnetically attached face to face onto the first magnetic surface.
In the first aspect of eyeglasses with forefront hanging glasses according to the invention, the first magnetic surface corresponding to the lower surface of the first magnetic piece comprises one of the lower surface itself and a flat lower surface of a coat member covering the lower surface.
In the first aspect of eyeglasses with forefront hanging glasses according to the invention, the second magnetic surface corresponding to the upper surface of the second magnetic piece comprises one of the upper surface itself and a flat upper surface of a coat member covering the upper surface.
In the respective aspects mentioned above, the first connection portion is curved forwardly while the recessed portion is curved along a fringe portion of the first connection portion, into which recessed portion a curved first magnetic piece is received substantially in a tight manner.
In the respective aspects mentioned above, the first magnetic piece may be mounted into the recessed portion of the principal glasses with the former hidden in the latter so that there arises a space between the lower surface of the first connection portion and the first magnetic surface while the second magnetic piece may be mounted into the second connection portion of the auxiliary glasses with the former protruded upwards by a height corresponding to such space from the second connection portion. Thus, the second magnetic surface may be magnetically attached onto the first magnetic surface with the salient portion of the second magnetic piece mounted into such space.
The invention brings the following favorable effects.
(1) The first magnetic piece is fixed in the recessed portion provided in the lower surface of the first connection portion comprising the principal glasses, so that such magnetic piece is exposed only on the lower surface of the first connection portion. Accordingly, such pair of forefront hanging glasses as to make the principal glasses look better is provided.
(2) Because there is provided only one magnetic piece on the first connection portion, only one recessed portion to fix the piece in is needed, differently from the prior art in which two magnetic pieces are mounted. Accordingly, labor required for working such recessed portion is lightened. Additionally, the fact that there is only one magnetic piece facilitates the same to be mounted into the recessed portion with precision with the first magnetic surface thereof corresponding to the lower surface thereof flatly embedded therein. Accordingly, the present invention enhances the efficiency with which the pair of principal glasses is produced and reduces the production cost.
(3) Then, the fact that the first magnetic piece provided on the first connection portion and the second magnetic piece provided on the second connection portion are both single in number facilitates the first magnetic surface corresponding to the lower surface of the first magnetic piece and the second magnetic surface corresponding to the upper surface of the second magnetic piece to be flatly formed with precision, which allows such flat surfaces to be made into a magnetic face to face contact. Thus, the present invention permits the pair of auxiliary glasses to be mounted into the principal glasses in a stable manner with magnetic force of the first and second magnetic pieces made the most of.
(4)Further, the fact that the first magnetic piece is provided on the first connection portion and the second magnetic piece is provided on the second connection portion defines the only one positional relationship between the first and second magnetic pieces when they are magnetically attached on each other. According to the present invention, just with the magnetic pieces magnetically attached on each other, it allows the auxiliary glasses to be mounted onto the principal glasses with the former positioned with regard to the latter as required.
(5)Furthermore, the fact that there is provided only one first magnetic piece on the first connection portion allows the size of the magnetic piece embedded in the recessed portion to be enlarged according to the length of such portion, which increases a magnetic area of such piece. Thus, the present invention makes a magnetic force as required according to the weight, largeness and so forth of the auxiliary glasses adjusted, which allows the auxiliary glasses to be mounted onto the principal glasses in a stable manner.
(6)Where a protective tape is attached on the lower surface (magnetic surface) of the first magnetic piece with such surface as a whole covered therewith; frontal and rear salient portions of such tape are folded so as to be attached onto the side surfaces of the magnetic piece; the magnetic piece on which such tape is attached is received in the recessed portion with the lower surface of such tape flatly embedded therein; an adhesive made from epoxy resin and so forth is filled in a gap between the side surfaces of the magnetic piece and the inner surfaces of the recessed portion, the lower surface of the protective tape attached on the lower surface of the magnetic piece forms a flat magnetic surface (the first magnetic surface). Where epoxy resin is coated on the surface of the magnetic piece as in the prior art, such surface results in being inflated round, which leads to failing to effectively use the magnetic force of the magnetic pieces. On the other hand, where such tape is attached on the magnetic piece as disclosed herein, it allows such flat magnetic surfaces enhancing magnetic force to be formed in a readily and secure manner. Then, as for such protective tape whose frontal and rear salient portions are attached onto the frontal and rear side surfaces of the magnetic piece, such side surfaces are embedded with an adhesive, so that there is no likelihood that the tape might be peeled off from the magnetic piece. Thus, the magnetic surfaces on which the protective tape is attached are maintained in a stable manner.
Further, such tape prevents the magnetic pieces from being rusted and the fact that such tape is attached on the lower surface of the magnetic piece mitigates impact upon such pieces being magnetically attached onto each other, thereby, the lower surface of the magnetic piece (magnetic surface) being protected even when a pair of the auxiliary glasses is repetitively attached or detached.
Moreover, the fact that the magnetic piece is received and adhesively fixed in the recessed portion with the frontal and rear salient portions of the protective tape attached onto the frontal and rear sides surfaces of the magnetic piece arises a buffer effect brought by such tape. That is to say, such tape mitigates impact applied to the cured adhesive made from epoxy resin etc. filled in the gap between the side surfaces of the magnetic piece and the inner surfaces of the recessed portion, which results in stably maintaining the fixed state of the magnetic piece.
Fig.1 is a perspective view to show eyeglasses with forefront hanging glasses comprising the principal glasses and the auxiliary glasses according to the invention. Fig.2 is a perspective view to show the state where the auxiliary glasses are mounted onto the principal glasses. Fig.3 shows perspective and cross-sectional views to explain the structure by which the first magnetic piece is fixed in the first connection portion. Fig.4 show perspective and cross-sectional views to explain the structure by which the second magnetic piece is fixed in the second connection portion. Fig.5 is a cross-sectional view to explain the state where the first magnetic surface of the first connection portion and the second magnetic surface of the second connection portion are magnetically attached on each other. Fig.6 is a partly perspective view to show another example of eyeglasses with forefront hanging glasses according to the invention. Fig.7 is a perspective view to explain the process in which the first magnetic piece whose lower surface is covered with the protective tape is fixed in the recessed portion of the first connection portion of the principal glasses. Fig. 8 shows perspective and cross-sectional views to show the state where the first magnetic piece is fixed in the recessed portion of the first connection portion. Fig. 9 shows perspective and cross-sectional views to show the process in which the second magnetic piece is fixed in the second connection portion of the auxiliary glasses. Fig.10 is a cross-sectional view to explain the state where the first magnetic surface of the first connection portion and the second magnetic surface of the second connection portion are magnetically attached on each other. Fig.11 is a perspective view to show eyeglasses with forefront hanging glasses with a flip up means. Fig.12 is a cross-sectional view showing the state where the auxiliary glasses are flipped up. Fig.13 is a cross-sectional view showing the state where the second magnetic piece coated with the protective tape is fixed in the second connection portion with the first magnetic piece magnetically attached onto the second magnetic piece. Fig.14 is a cross-sectional view showing another example of the flat first and second magnetic surfaces. Fig. 15 shows perspective and bottom surface views of another example of the first magnetic piece coated with the protective tape and a cross-sectional view showing the state where the first magnetic piece is fixed in the recessed portion. Fig.16 shows perspective and bottom surface views of another example of the first magnetic piece coated with the protective tape and a cross-sectional view showing the state where the first magnetic piece is fixed in the recessed portion. Fig.17 shows perspective and bottom surface views of another example of the recessed portion and the first magnetic piece. Fig.18 is a cross-sectional view showing the state where the first magnetic piece is attached through a double-coated adhesive tape on the bottom surface of the recessed portion. Fig.19 is a cross-sectional view showing the structure in which the first magnetic surface is magnetically attached onto the second magnetic surface. Fig.20 is a cross-sectional view showing another structure in which the first magnetic surface is magnetically attached onto the second magnetic surface. Fig.21 is a perspective view showing one example of the prior eyeglasses with forefront hanging glasses. Fig.22 is a cross-sectional view to explain the problem caused when epoxy resin is coated on the magnetic surface.
With a pair of eyeglasses with forefront hanging glasses 1 according to the invention as shown in Figures 1 and 2, it is arranged such that the auxiliary glasses 3 are magnetically and detachably mounted onto the principal glasses 2.
The principal glasses 2, as shown in Figures 1 to 3, comprise a pair of rimless spectacles whose lower rim is missing. The right and left lenses 5 and 5 are interconnected with the first connection portion 6, which lenses are held in place with the end portions 15 and 15 of the cord 13 mounted on the lower rim portion 12 of the lens 7 clamped in respective ends 11 and 11 of the rim 10 mounted on the lens 7. As shown in Figure 3, one comparatively large and longitudinally extending rectangular recessed portion 21 provided with semi-circular recessed surfaces 20 and 20 on the right and left sides thereof is formed at least in the longitudinal middle portion 14 of the flat lower surface 16 of the first connection portion 6 (in the middle portion and the longitudinally extending right and left side portions thereof in the present example), the bottom surface (top surface) 17 of which is flatly formed and only the lower side 19 of which opens. One first magnetic piece 22 is mounted into the recessed portion 21 and adhesively fixed therein.
In the present embodiment, the first magnetic piece 22, as shown in Figure 3(A), comprises a middle portion 22a having a rectangular shape in plan view and end portions 22b and 22b provided on both ends of the middle portion 22a, the end portions respectively having a semi-circular protrusive surface 23 that substantially abuts to the semi-circular recessed surface 20. The lower surface 25 and the upper surface 26 of the first magnetic piece 22 are flatly formed.
Exemplifying the size of the recessed portion 21 and that of the first magnetic piece 22, the length of a shorter side of the recessed portion 21 is 2.0mm and that of a longer side thereof is 8.8mm as well as the depth thereof is 1.5mm while the length of a shorter side of the first magnetic piece 22 is 1.8mm and that of a longer side thereof is 8.6mm as well as the thickness thereof is 1.5mm.
The first magnetic piece 22 is received in the recessed portion 21 with the lower surface 25 thereof flat. An adhesive (e.g. made from epoxy resin) 31 is filled in a gap 30 between the side surfaces 27 of the first magnetic piece 22 and the inner side surfaces 29 of the recessed portion 21.
In the present example, the lower surface 25 itself of the first magnetic piece 22 received in the recessed portion 21 and adhesively fixed therein defines a first flat magnetic surface 32, which surface is flush with or slightly protrudes from the lower surface 16 of the first connection portion 6. According to the production error of the first magnetic piece 22 and working error of the recessed portion 21, the first magnetic surface may protrude in the order of 0.1mm to 0.2mm. That is to say, the first magnetic surface 32 is flush with the lower surface 16 of the first connection portion 6. Thus, the first magnetic piece 22 provided on the lower surface 16 of the first connection portion 16, as shown in Figure 1(B), does not expose from the upper surface 28 or the side surface 34 of the first connection portion 6, but exposes only from the lower surface 16 of the first connection portion 6, so that there is no case where the first magnetic piece 22 does damage on the appearances of the principal glasses 2.
The auxiliary glasses 3 may be provided with light-shielding, polarization, vision correction or 3D display functions and as such. In the present example, they are a pair of sunglasses whose right and left auxiliary lenses 37 and 37 covering the frontal surfaces 36 and 36 of the right and left lenses 5 and 5 of the principal glasses are connected with the second connection portion 39. The middle portion 40 of the upper surface 45 of the second connection portion 39 is arranged such that it overlaps over the middle portion 14 of the lower surface 16 of the first connection portion 6, at least in which middle portion 40 (in the middle portion thereof and the right and left portions successively continuing therefrom) a substantially elliptical get-through hole 42 provided with the semi-circular recessed surfaces 41 and 41 on the right and left ends thereof is disposed. Then, one second magnetic piece 43 having the same configuration as the first magnetic piece 22 is pressed into the get-through hole 42 and the upper surface 38 itself of the second magnetic piece 43 defines the second flat magnetic surface 46 (see Figure 4 (B) and (C)).
Upon the second connection portion 39 of the auxiliary glasses 3 overlapped from below over the first connection portion 6 of the principal glasses 2 as shown in Figures 2 and 5(B), the first magnetic surface 32 and the second magnetic surface 46 having opposite polarity are magnetically attached face to face on and flush with each other in a stable manner, thereby, the auxiliary glasses 3 being magnetically and detachably mounted onto the principal glasses 2.
As mentioned above, the first magnetic piece 22 mounted on the first connection portion 6 is one, so that differently from the prior art where a plurality of magnetic pieces are mounted thereon, only one recessed portion 21 to fix such piece therein is required, which lightens production labor. Further, the first magnetic piece 22 is mounted in the recessed portion 21 with precision and ease with the lower surface 25 thereof (the first magnetic surface 32) flat, which improves on production efficiency. Using only one magnetic piece allows a magnetic area to be increased according to the length of the recessed portion 21, which in turn permits magnetically attracted force between the first and second magnetic surfaces 32 and 46 to be enhanced according to the weight, shape and so forth of the auxiliary glasses 3, which improves on the stability of the auxiliary glasses on the principal glasses.
As regards with the first magnetic piece 22 of the first connection portion 6 and the second magnetic piece 43 of the second connection portion 43 being magnetically strongly attracted to each other, the fact that one first magnetic piece 22 is provided at least in the longitudinal middle portion 14 of the lower surface 16 of the first connection portion 6 and one second magnetic piece 43 is provided at least in the longitudinal middle portion of the upper surface 45 of the second connection portion 39 defines the only one positional relationship between the first and second magnetic pieces 22 and 43, which allows the auxiliary glasses 3 to be mounted onto the principal glasses 2 with the former positioned to the latter as required. Provided that a magnetic section comprising an iron piece other than magnetic pieces is provided on the second connection portion 39, even when the magnetic section of such portion might be magnetically attached onto the first magnetic piece 22, the latter is magnetically attracted to the former in its longitudinal arbitrary positions, which is not necessarily the case where they are in the only one positional relationship as mentioned before, so that fine tuning of the mounting condition is required. On the other hand, according to the invention, as described earlier, the magnetic pieces are mutually attracted to each other, so that the first magnetic piece 22 and the second magnetic piece 43 are magnetically attached on each other in the only one positional relationship between them.
Figures 6 to 9 show another example of eyeglasses with forefront hanging glasses 1 according to the invention, in which the auxiliary glasses 3 are magnetically and detachably mounted onto the principal glasses 2. The principal glasses 2 have the same constitution as that explained in Example 1, so that the same reference numerals are used for the same structural components, the explanation of which is omitted to avoid redundancy.
The first magnetic piece 22 fixed on the first connection portion 6 is, as shown in Figure 7, takes the shape of a rectangular parallelepiped longitudinally extending and provided with vertically flat surfaces 44 and 44 on the right and left ends thereof, by way of one example. The lower surface and upper surfaces 25 and 26 of the first magnetic piece 22 are flatly formed. As shown in Figure 7(A) and (B), the protective tape 47 made from resin is attached on the lower surface 25 with such surface covered as a whole, and the frontal and rear salient marginal portions 49 and 49 of the tape 47 are folded so as to be attached on e.g. the lower side portions 52 and 53 of the frontal and rear side surfaces 50 and 51 of the first magnetic piece 22. As for the salient portions, they may well be attached on the frontal and rear side surfaces 50 and 51 as a whole.
Exemplifying the size of the recessed portion 21 and that of the first magnetic piece 22, the length of a shorter side of the former is 2.0mm and that of a longer side thereof is 8.6mm as well as the depth thereof is 1.5mm while that of a shorter side of the latter is 1.8mm and that of a longer side thereof is 6.6mm as well as the thickness thereof is 1.5mm. The protective tape 47, for example, is made of a transparent polyester tape and e.g. in the order of 30 to 50 micrometer in thickness as well as soft, elastic and strong.
The first magnetic piece 22 on which the protective tape 47 is coated, as shown in Figure 8(A) and (B), is received in the recessed portion 21 with the lower surface 55 of the protective tape 47 flat, and an adhesive 31 (e.g. made from epoxy resin) is filled in a gap 30 between the side surfaces 50 and 51 of the first magnetic piece 22 and the inner surfaces 29 of the recessed portion 21. In the present example, the lower surface 55 of the tape 47 is flush with the lower surface 16 of the first connection portion 6.
The lower surface 55 (the lower surface of the coat member 48) of the protective tape 47 attached on the lower surface 25 of the first magnetic piece 22 received in and adhesively fixed in the recessed portion 21 provided on the lower surface 16 of the first connection portion 6 defines a flat first magnetic surface 32, which surface is flush with or slightly protrudes from the lower surface 16 of the first connection portion 6. In the present example, such surface protrudes in the order of the thickness of the tape 47 (30 to 50 micrometer). That is to say, the first magnetic surface 32 is flush with the lower surface 16 of the first connection portion 6. Thus, the first magnetic piece 22 provided on the lower surface 16 of the first connection portion 6 does not expose from the upper surface 28 or the side surfaces 34 and 34 of the first connection portion 6, but exposes only from the lower surface 16 thereof, so that there is no case where the first magnetic piece does damage on the appearances of the principal glasses 2.
The protective tape 47 prevents the plating of the lower surface 25 of the first magnetic piece 22 from being peeled off and the magnetic piece from being rusted.
To note, where the tape 47 is attached only on the lower surface 25 of the first magnetic piece 22, there is likelihood that such tape might be detached from the fringe portion 57 thereof. On the other hand, the frontal and rear salient marginal portions 49 and 49 of the tape 47 are folded, which folded portions are attached onto the frontal and rear side surfaces 50 and 51 of the first magnetic piece 22, e.g. the lower side portions 52 and 53 thereof. The first magnetic piece 22 on which the tape 47 is attached is mounted into the recessed portion 21. Then, an adhesive 31 (made from epoxy resin, for instance) is filled in the gap between the side surfaces 50, 51, 54 and 54 of the first magnetic piece 22 and the inner surfaces 29 of the recessed portion 21 such that the first magnetic piece 22 is adhesively fixed into the recessed portion 21. As a result of it, as shown in Figure 8(B), the frontal and rear salient marginal portions 49 and 49 of the tape 47 are embedded with the adhesive 31, so that there is no likelihood that the tape might be peeled off from the lower surface 25 of the first magnetic piece 22, thereby, the first magnetic surface 32 formed by the attached tape 47 being kept intact in a stable manner.
The first magnetic piece 22 is so small that it can be fixed in the first connection portion 6 small in size, so that an area of the lower surface 25 thereof is small. Accordingly, the tape is vulnerable to being peeled off just with the same attached only on the lower surface 25. However, arranging the salient portions of the tape 47 as mentioned above prevents that attached on the lower surface 25 from being peeled off.
Further, the auxiliary glasses 3 may be provided with light shielding, polarization, vision correction and 3D display functions in the same way as explained in Example 1. In the present example, they are a pair of sunglasses, the right and left auxiliary lenses 37 and 37 of which covering the frontal surfaces 36 and 36 of the right and left lenses 5 and 5 are connected with the second connection portion 39, as shown in Figures 1 and 9. The longitudinal middle portion 40 of the upper surface 45 of the second connection portion 39, as shown in Figure 6, is arranged such that it overlaps over the lower surface 16 of the first connection portion 6, at least in which middle portion 40 (in the middle portion 40 and the right and left sides portions extending from such portion, in the present example) a rectangular get-through hole 42 is provided, into which hole one second magnetic piece 43 taking the same shape of a rectangular parallelepiped as the first magnetic piece 22, is pressed, as shown in Figure 9(B) and (C), so that the upper surface 39 itself of the second connection portion 39 forms the second flat magnetic surface 46.
Upon the second connection portion 39 of the auxiliary glasses 3 being overlapped from below over the first connection portion 6 of the principal glasses 2 as shown in Figure 10(B), the first magnetic surface 32 and the second magnetic surface 46 having opposite polarity are magnetically attached face to face on each other in a stable manner, which allows the auxiliary glasses 3 to be magnetically and detachably mounted onto the principal glasses 2. Then, the protective tape 47 is attached on the lower surface 25 of the first magnetic piece 22, so that impact applied on the first magnetic piece 22 when the second magnetic piece 43 is magnetically attached on the same is mitigated, which results in protecting the lower surface (magnetic surface) 25 of the first magnetic piece 22 even when the auxiliary glasses 3 might be repetitively attached or detached.
As mentioned above, because the first magnetic piece 22 mounted into the first connection portion 6 is one, differently from the prior art where a plurality of magnetic pieces are mounted, only one recessed portion 21 is required for fixing the magnetic piece, which lightens production labor and facilitates the magnetic piece 22 to be mounted into the recessed portion 21 with precision and ease with the lower surface 25 thereof flat, with the result that production efficiency improves. Using only one magnetic piece allows an area of magnetic attachment to be increased according to the length of the recessed portion 21, which in turn permits the magnetic attachment force between the first and second magnetic surfaces 32 and 46 to be enhanced according to the weight, shape and so forth of the auxiliary glasses 3, which leads to favorably stabilizing the magnetically attached condition between those surfaces.
The fact that the first magnetic piece 22 of the first connection portion 6 and the second magnetic piece 43 of the second connection portion 39 are magnetically strongly attached on each other as well as one first magnetic piece 22 is provided at least in the longitudinal middle portion of the lower surface 16 of the first connection portion 6 and one second magnetic piece 43 is provided at least in the longitudinal middle portion of the upper surface 45 of the second connection portion 39, in the same way as explained in Example 1, makes the first magnetic piece 22 and the second magnetic piece 43 magnetically attached on each other in the only one positional relationship between them, which permits the auxiliary glasses 3 to be stably positioned with regard to the principal glasses 2 as required.
Furthermore, the first magnetic piece 22 is received in the recessed portion 21 and adhesively fixed therein with the salient portions 49 and 49 of the tape 47 attached on the frontal and rear side surfaces 50 and 51 of the first magnetic piece 22, so that buffer effect brought by the tape 47 attached on the side surfaces 50 and 51 is effective to mitigate impact applied on the cured matter 59 made from an epoxy resin adhesive and as such filled in the gap 30, which leads to stably maintaining the adhesively fixed condition of the magnetic piece.
The present invention is not limited to what has been exemplified in the previous embodiments, but may be modified into various manners within the scope of the accompanying patent claims. Such modified examples are exemplified below.
(1)Figures 11 and 12 show the case where a pair of eyeglasses with forefront hanging glasses according to the invention are provided with a flip-up means. The longitudinally extending recessed portion 21, the lower end of which opens, is provided at least in the longitudinal middle portion 14 (in the middle portion and the right and left sides portions extending from that portion) of the lower surface 16 of the first connection portion 6 of the principal glasses 2 arranged in the same way as the previous embodiments. The first magnetic piece 22, in the same way as the previous examples, is fixed into the recessed portion 21. Then, the auxiliary glasses 3, as shown in Figure 12, are arranged such that their right and left auxiliary lenses 37 and 37 rotate within an angle range from where they cover the frontal surfaces 36 and 36 of the right and left lenses 5 and 5 to where they are flipped up, so that those glasses 3 are held with a flip- up angle as desired.
With the auxiliary glasses 3, as shown in Figure 11 (A), axially receiving protrusive portions 60 and 60 are provided on the right and left ends of the upper side portion of the second connection portion 39 interconnecting the right and left auxiliary lenses 37 and 37, between which portions 60 the mount-insert recessed portion 61 is provided while the mount-insert convex portion 63 provided with the holder 62 is mounted into the recessed portion 61. The upper and lower interposing pieces 65 and 66 are oppositely provided in a protrusive manner on the upper and lower portions of the rear side of the holder 62, between which interposing pieces 65 and 66 the receiving groove 67 to receive the first connection portion 6 of the principal glasses 2 is provided. Then, one second magnetic piece 43 is provided at least in the longitudinal middle portion 40 (in the middle portion 40 and the right and left sides interposing such portion in the present embodiment) of the upper surface 45 of the second connection portion 39 in such a manner that the second magnetic piece 43 is, for instance, adhesively fixed on the upper surface 69 of the lower interposing piece 66.
Mount-inserting the first connection portion 6 into the receiving groove 67, as shown in Figure 12, allows the flat first magnetic surface 32 which is in turn the lower surface 25 of the first magnetic piece 22 provided in the longitudinal middle portion of the lower surface 16 of the first connection portion 6 to be magnetically attached with the flat second magnetic surface 46 which is in turn the upper surface 38 of the second magnetic piece 43 provided on the second connection portion 39, thereby, the second connection portion 39 resulting in being detachably attached onto the first connection portion 6. In this state, the auxiliary glasses 3 may be rotatable within an angle range from the state where the auxiliary lenses 37 and 37 cover the frontal surfaces 36 and 36 of the lenses 5 and 5 to that where the auxiliary lenses 37 and 37 are flipped up.
(2)With the eyeglasses with forefront hanging glasses according to the invention, besides the first magnetic surface 32 which is in turn the lower surface 25 of the first magnetic piece 22 being the lower surface itself, as shown in Figure 3, it may be formed as the flat lower surface of the coat member 44 covering the lower surface 25, as shown in Figure 7. Likewise, besides the second magnetic surface 46 which is turn the upper surface 38 of the second magnetic piece 43 being the upper surface itself, as shown in Figure 4, it may be formed as the flat upper surface of the coat member 74 covering the upper surface 38, as shown in Figure 13. Then, besides the coat members 44 and 47 being formed of the attached protective tape 47 as mentioned above, they may be formed with coat pieces attached or baking finish of a sprayed resin.
(3)With the lenses 5 and 5 of the principal glasses 2 and the lenses 37 and 37 of the auxiliary glasses 3, a full-rim type by which the whole circumference of the lenses is surrounded with the rim, a half-rim type by which the upper, lower, inner or outer portions of the lenses is surrounded with the rim or a rimless type by which the lenses are not surrounded with the rim are adoptable.
(4)The first connection portion 6 and the second connection portion 39 may be made from metal or resin.
(5)Besides the recessed portion 21 provided at least in the longitudinal middle portion 14 of the lower surface 16 of the first connection portion 6 extending right to left as mentioned above, it may be formed into a square shape and provided only in the middle portion 14, in which recessed portion 21 having such square shape the first magnetic piece 22 having a square or cubic shape is substantially tightly received so as to be adhesively fixed therein.
(6)Figure 13 (A) shows the recessed portion 68 provided at least in the longitudinal middle portion of the upper surface 45 of the second connection portion 39 in the same way as the first connection portion 6 and the second magnetic piece 43 adhesively fixed into the recessed portion 68. In this case, as shown in Figure 13, the frontal and rear salient portions 70 and 70 of the same protective tape 47 made from a resin as mentioned above that is attached on the upper surface 38 of the second magnetic piece 43 such that it covers the surface 38 as a whole are folded so as to be attached on the frontal and rear side surfaces 71 and 72 of the second magnetic piece 43. The second magnetic piece 43 on which the tape 47 is attached is received in the recessed portion 68 with the upper surface 73 (the upper surface of the coat member 74) of the tape 47 presenting the flat second magnetic surface 46. Then, an adhesive made from epoxy resin and as such is filled into the gap 77 formed between the side surface 75 of the second magnetic piece 43 and the inner surface 76 of the recessed portion 68 so as to make the second magnetic piece 43 adhesively fixed into the recessed portion 68. Figure 13 (B) shows the state where the first magnetic surface 32 magnetically attached onto the second magnetic surface 46.
(7)In this invention, the flat first magnetic surface 32 of the first connection portion 6 and the second magnetic surface 46, as shown in Figure 14, may be formed with slight inclination (also included in the flat surface defined by this invention) by way of example.
(8)The first magnetic piece 22, as shown in Figures 15 (A) and (B) as well as Figures 16 (A) and (B), is provided with end portions 85 and 85 respectively having a semi-circular salient surface on the right and left edge surfaces 83 thereof extending from the middle portion 82a having a rectangular shape in plan view or from that 82b having a square shape in plan view with the lower surface 25 of the first magnetic piece 22 presenting flatly, in which case besides the protective tape 47 being attached on the lower surface 25 such that it covers the surface 25 as a whole, the tape 47 may cover the lower surfaces 25a and 25b of the middle portions 82a and 82b only. In this case, in the same way as mentioned above, the salient portions 49 and 49 of the tape 47 are folded so as to be attached on the frontal and rear side surfaces 50 and 51 of the first magnetic piece 22, in which the lower surface 45 (the lower surface of the coat member 44) of the tape 47 that is attached on the lower surface 25 forms the first magnetic surface 32. Figures 15(C) and 16(C) shows the first magnetic piece 22 received in the same recessed portion 21 as shown in Figure 3(A) so as to be adhesively fixed therein.
(9)Besides the first magnetic piece 22 to be received in the recessed portion 21 longitudinally and linearly extending, it may curve or bend along the outer circumference of the first connection portion 6. For instance, as shown in Figure 17, there is a case where the first connection portion 6 convexly curves forwards in the meantime the recessed portion 21 curves along the fringe portion 89 of the first connection portion 6, thereby, a curved first magnetic piece 22 being substantially tightly received in the curved recessed portion 21.
(10)The protective tape 47 may be transparent or colored.
(11) Figure 18 shows a double-coated adhesive tape 86 (e.g., having a thickness in the order of 0.2 to 0.25mm) attached on the upper surface 26 of the first magnetic piece 22 and the upper adhesive surface 87 thereof attached on the bottom surface (top surface) 17 of the recessed portion 21 (see Figure 18(B)), which further improves on the strength with which the first magnetic piece 22 is fixed into the recessed portion 21.
(12)Figure 19 (A) shows the first magnetic piece 22 mounted into the recessed portion 21 of the principal glasses 2 with the former hidden in the latter so that there arises a space (e.g. in the order of 0.5mm) between the lower surface of the first connection portion 6 and the first magnetic surface 32 while the second magnetic piece 43 mounted into the second connection portion 39 of the auxiliary glasses 3 with the former protruded upwards by a height corresponding to such space from the second connection portion 39.
Thereby, as shown in Figure 19 (B), the second magnetic surface 46 may be magnetically attached onto the first magnetic surface 32 with the salient portion of the second magnetic piece 43 mounted into such space of the recessed portion 21, which prevents the second connection portion 39 from being displaced right and left as well as back and forth with regard to the first connection portion 6 so as to result in hampering the auxiliary glasses 3 to which external force might be applied from being detached from the principal glasses.
(13)Furthermore, as shown in Figure 20 (A), the mount-inserting structure of the second magnetic piece 43 as mentioned above may be applied to the second connection portion 39 provided with the holder 62, in which case the second connection portion 39 is stably fixed into place without fluctuation, even when the height of the first connection portion 6 might be smaller than an interval between the upper and lower interposing pieces 65 and 66 as shown in Figure 20 (B).
1 eyeglasses with forefront hanging glasses
2 principal glasses
3 auxiliary glasses
5 lens
6 first connection portion
21 recessed portion
22 first magnetic piece
25 lower surface of first magnetic piece
25a lower surface of the middle portion
25b lower surface of the middle portion
27 side surface of the magnetic piece
29 inner surface of the recessed portion
30 gap
31 adhesive
32 first magnetic surface
37 auxiliary lens
39 second connection portion
43 second magnetic piece
44 coat member
46 second magnetic surface
47 protective tape
49 salient marginal portion
50 side surface
51 side surface
55 lower surface of the protective tape
74 coat member
82a middle portion
82b middle portion
83 edge surface
85 end portion
89 fringe portion

Claims (13)

  1. Eyeglasses with forefront hanging glasses comprising a pair of principal glasses whose right and left lenses are connected with a first connection portion; and a pair of auxiliary glasses whose right and left auxiliary lenses are connected with a second connection portion to cover frontal surfaces of the right and left lenses of the principal glasses with, wherein the second connection portion is magnetically and detachably mounted onto a lower surface of the first connection portion and one recessed portion opened only at a lower end thereof is provided at least in a longitudinal middle part of the lower surface of the first connection portion, into which recessed portion a first magnetic piece is fixed, wherein the first magnetic piece is received in the recessed portion with a lower surface thereof flat and an adhesive is filled into a gap between side surfaces of the first magnetic piece and inner side surfaces of the recessed portion, thereby, the first magnetic piece being fixed in the recessed portion, wherein the lower surface of the first magnetic piece forms a first magnetic surface and a second magnetic piece whose upper surface is flat is provided at least in a longitudinal middle part of an upper surface of the second connection portion, wherein a second magnetic surface corresponding to the upper surface of the second magnetic piece is magnetically attached face to face onto the first magnetic surface.
  2. Eyeglasses with forefront hanging glasses comprising a pair of principal glasses whose right and left lenses are connected with a first connection portion; and a pair of auxiliary glasses whose right and left auxiliary lenses are connected with a second connection portion to cover frontal surfaces of the right and left lenses of the principal glasses with, wherein the second connection portion is magnetically and detachably mounted onto a lower surface of the first connection portion and one recessed portion opened only at a lower end thereof is provided at least in a longitudinal middle part of the lower surface of the first connection portion, into which recessed portion a first magnetic piece is fixed, wherein a lower surface of the first magnetic piece is formed flat and frontal and rear salient portions of a resinous protective tape attached on the lower surface of the first magnetic piece such that it covers the lower surface as a whole are folded so as to be attached onto the frontal and rear side surfaces of the first magnetic piece, wherein a lower surface of the protective tape attached onto the lower surface of the first magnetic piece forms a first magnetic surface, wherein the first magnetic piece on which the protective tape is attached is received in the recessed portion with the lower surface of the protective tape flat and an adhesive is filled into a gap between side surfaces of the first magnetic piece and inner side surfaces of the recessed portion, thereby, the first magnetic piece being fixed in the recessed portion, wherein a second magnetic piece with an upper surface thereof flat is provided at least in a longitudinal middle part of an upper surface of the second connection portion, wherein a second magnetic surface corresponding to the upper surface of the second magnetic piece is magnetically attached face to face on the first magnetic surface.
  3. Eyeglasses with forefront hanging glasses comprising a pair of principal glasses whose right and left lenses are connected with a first connection portion; and a pair of auxiliary glasses whose right and left auxiliary lenses are connected with a second connection portion to cover frontal surfaces of the right and left lenses of the principal glasses with, wherein the second connection portion is magnetically and detachably mounted onto a lower surface of the first connection portion and one recessed portion opened only at a lower end thereof is provided at least in a longitudinal middle part of the lower surface of the first connection portion, into which recessed portion a first magnetic piece is fixed, wherein the first magnetic piece is provided with right and left end portions having a semi-circularly protrusive surface extending from a middle part thereof having a rectangular or square shape in plan view, wherein a lower surface of the first magnetic piece is formed flat and frontal and rear salient portions of a resinous protective tape attached on the lower surface of the first magnetic piece such that it covers the middle part of the lower surface only are folded so as to be attached on frontal and rear side surfaces of the first magnetic piece, thereby, a lower surface of the protective tape attached on the lower surface of the first magnetic piece forming a first magnetic surface, wherein the first magnetic piece on which the protective tape is attached is received in the recessed portion with a lower surface of the tape flat and an adhesive is filled in a gap between side surfaces of the first magnetic piece and the inner side surfaces of the recessed portion, thereby, the first magnetic piece being fixed in the recessed portion, wherein a second magnetic piece with an upper surface thereof flat is provided at least in a longitudinal middle part of an upper surface of the second connection portion, thereby, a second magnetic surface corresponding to the upper surface of the second magnetic piece being magnetically attached face to face onto the first magnetic surface.
  4. Eyeglasses with forefront hanging glasses according to Claim 1, wherein the first magnetic surface corresponding to the lower surface of the first magnetic piece comprises the lower surface itself.
  5. Eyeglasses with forefront hanging glasses according to Claim 1, wherein the first magnetic surface corresponding to the lower surface of the first magnetic piece comprises a flat lower surface of a coat member covering the lower surface.
  6. Eyeglasses with forefront hanging glasses according to Claim 1, wherein the second magnetic surface corresponding to the upper surface of the second magnetic piece comprises the upper surface itself.
  7. Eyeglasses with forefront hanging glasses according to Claim 1, wherein the second magnetic surface corresponding to the upper surface of the second magnetic piece comprises a flat upper surface of a coat member covering the upper surface.
  8. Eyeglasses with forefront hanging glasses according to Claim 1, wherein the first connection portion is curved forwardly while the recessed portion is curved along a fringe portion of the first connection portion, into which recessed portion a curved first magnetic piece is received substantially in a tight manner.
  9. Eyeglasses with forefront hanging glasses according to Claim 2, wherein the first connection portion is curved forwardly while the recessed portion is curved along a fringe portion of the first connection portion, into which recessed portion a curved first magnetic piece is received substantially in a tight manner.
  10. Eyeglasses with forefront hanging glasses according to Claim 3, wherein the first connection portion is curved forwardly while the recessed portion is curved along a fringe portion of the first connection portion, into which recessed portion a curved first magnetic piece is received substantially in a tight manner.
  11. Eyeglasses with forefront hanging glasses according to Claim 1, wherein the first magnetic piece is mounted into the recessed portion of the principal glasses with the former hidden in the latter so that there arises a space between the lower surface of the first connection portion and the first magnetic surface while the second magnetic piece is mounted into the second connection portion of the auxiliary glasses with the former protruded upwards by a height corresponding to the space from the second connection portion, wherein the second magnetic surface is magnetically attached onto the first magnetic surface with a salient portion of the second magnetic piece mounted into the space.
  12. Eyeglasses with forefront hanging glasses according to Claim 2, wherein the first magnetic piece is mounted into the recessed portion of the principal glasses with the former hidden in the latter so that there arises a space between the lower surface of the first connection portion and the first magnetic surface while the second magnetic piece is mounted into the second connection portion of the auxiliary glasses with the former protruded upwards by a height corresponding to the space from the second connection portion, wherein the second magnetic surface is magnetically attached onto the first magnetic surface with a salient portion of the second magnetic piece mounted into the space.
  13. Eyeglasses with forefront hanging glasses according to Claim 3, wherein the first magnetic piece is mounted into the recessed portion of the principal glasses with the former hidden in the latter so that there arises a space between the lower surface of the first connection portion and the first magnetic surface while the second magnetic piece is mounted into the second connection portion of the auxiliary glasses with the former protruded upwards by a height corresponding to the space from the second connection portion, wherein the second magnetic surface is magnetically attached onto the first magnetic surface with a salient portion of the second magnetic piece mounted into the space.
PCT/JP2012/000782 2012-02-06 2012-02-06 Eyeglasses with forefront hanging glasses WO2013118162A1 (en)

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US10887516B2 (en) 2014-12-23 2021-01-05 PogoTec, Inc. Wearable camera system
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US11300857B2 (en) 2018-11-13 2022-04-12 Opkix, Inc. Wearable mounts for portable camera

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