JP2012068469A - Clip-on spectacles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide clip-on spectacles in which auxiliary spectacles can be attached simply and securely to base spectacles by magnetic attraction without disfeaturing the base spectacles.SOLUTION: Clip-on spectacles include base spectacles 2 formed by coupling right and left lens portions 5 with each other at a first coupling portion 6, and auxiliary spectacles 3 formed by coupling right and left auxiliary lens portions 37 with each other at a second coupling portion 39. The second coupling portion 39 is detachably attached to an under surface of the first coupling portion 6 in a magnetically attracted state. A first magnet 22 is housed in a housing concave portion 21 provided on the under surface of the first coupling portion 6 and adhesively fixed therein. A second magnet 43 is provided on a top surface of the second coupling portion 39. An under surface of the first magnet 22 is formed flat to provide a first magnetic surface 32, and a top surface of the second magnet 43 is formed flat to provide a second magnetic surface 46, which are magnetically attracted to each other in a planar manner.

Description

  The present invention relates to front-mounted glasses. More specifically, the present invention relates to a front-mounted spectacle that allows auxiliary spectacles to be attached to the main spectacles in a simple and reliable manner by magnetic adsorption without impairing the appearance of the main spectacles.

  FIG. 5 of Utility Model Registration No. 3059988 shows an example of a front-type spectacle that is configured to detachably attach auxiliary spectacles such as light-shielding spectacles or polarized spectacles to the main spectacles in a magnetically attracted state. Proposed. As shown in FIG. 19, the front spectacles a includes a main body glasses d formed by connecting left and right lens portions b and b with a first connecting portion c, and front surfaces e and left and right of the left and right lens portions b and b. The left and right auxiliary lens parts f and f which can cover e on the front side thereof are provided with auxiliary glasses h formed by connecting each other with a second connecting part g, and the second connecting part g is the first connecting part c. It was configured to be detachably attached to the lower surface j of the magnet in a magnetic adsorption state. As shown in FIG. 19, the configuration in which the magnets are detachably attached has a round button-shaped first magnet k, k on the left and right ends of the lower surface j of the first connecting portion c. The second magnets m and m having a round button shape are substantially flush with the upper surface n on the left and right ends of the upper surface n of the second connecting portion g. It was buried in an exposed state. The first and second magnets k and m are arranged such that the upper surface n of the second connection part g of the auxiliary glasses h is superimposed on the lower surface j of the first connection part c of the main body glasses d. , K, m are magnetically attracted so that the auxiliary glasses h can be detachably attached to the main body glasses d.

  When using the front-mounted glasses a having such a configuration, the first magnets k, k are disposed on the lower surface j of the first connecting portion c of the main body glasses d, and the first magnets k, k are The first magnets k and k are conspicuous and impair the appearance of the main body glasses d because they are not exposed on the upper surface p and the side surface q of the first connecting part c and do not appear on the visible surface of the main body glasses d. Had no advantage.

  However, there is a problem that the auxiliary eyeglass h is attached to the main body glasses d in an unstable state and the auxiliary eyeglasses easily fall off. The reason for this is that, as described above, the two first magnets k, k are independently embedded on the left and right ends of the lower surface j of the first connecting portion c constituting the main body glasses d, while the auxiliary glasses are provided. The configuration is such that two second magnets m, m are embedded independently on the left and right end sides of the upper surface n of the second connecting portion g constituting h, and these magnets are small. Therefore, the processing error when forming the recesses for embedding the magnets corresponding to the respective magnets greatly affects the accuracy of embedding the magnets, and these four magnets k, k, m This is because it was difficult to position and embed m accurately as designed.

  If these four magnets k, k, m, m cannot be positioned and embedded with high accuracy, any of the upper and lower first and second magnets k, m set arranged on the left and right end sides On the other hand, even if the magnets are reliably attracted to each other by contact between the magnets, on the other hand, the magnet attracting state between the magnets tends to be incomplete point contact, and the magnetic attracting state tends to become unstable as a whole. As a result, there arises a problem that the auxiliary glasses h easily fall off the main body glasses d.

  Furthermore, if the problem is pointed out, the magnet surface is usually plated with nickel for rust prevention, but when the auxiliary spectacles are attached / detached, the magnet surfaces hit each other shockingly. There was a problem that the plating was peeled off and the magnet was rusted. In order to avoid such a corrosion problem, as shown in FIG. 20, a means for increasing the rust prevention effect by applying an epoxy resin s to the magnet surface r has been considered. However, in this case, the application surface t is raised and rounded due to the surface tension of the resin, for example, as shown in FIG. 20, so that the upper and lower first and second magnets k and m are point contact magnets. The problem was that the magnetic adsorption state became unstable due to the adsorption state.

Utility Model Registration No. 3059988

  The present invention has been developed in view of the above-mentioned conventional problems, and it is possible not only to improve the appearance of the main spectacles but also to easily attach the auxiliary spectacles to the main spectacles in a magnetically attracted state. However, an object of the present invention is to provide a front-mounted spectacle that allows the auxiliary spectacles to be attached to the main spectacles in a stable magnetic adsorption state.

  Another object of the present invention is to provide a front-type spectacle that enables stable magnetic attraction while being able to prevent rust on the magnet surface.

  It is another object of the present invention to provide a front-type spectacle that can improve the manufacturing efficiency and reduce the manufacturing cost while ensuring such high quality.

In order to solve the above problems, the present invention employs the following means.
That is, the first aspect of the front-mounted spectacles according to the present invention is the main spectacles in which the left and right lens parts are connected to each other by the first connecting part, and the left and right that can cover the front surfaces of the left and right lens parts on the front side. Auxiliary glasses formed by connecting the auxiliary lens portions to each other with a second connecting portion, and the second connecting portion can be detachably attached to the lower surface of the first connecting portion in a magnetically attracted state. And at least a central portion of the lower surface of the first connecting portion in the left-right direction is provided with one receiving recess that opens only at the lower end, and one of the first magnets is fixed to the receiving recess. Yes. The first magnet is housed in the housing recess with the lower surface thereof being horizontal, and an adhesive is present in the gap between the side surface of the first magnet and the inner surface of the housing recess. The first magnet is fixed to the receiving recess by being filled, and the first magnetic surface exhibited by the lower surface of the first magnet is flush with the lower surface of the first connecting portion, In addition, at least a central portion in the left-right direction of the upper surface of the second connecting portion is provided with one second magnet whose upper surface is horizontal, and a second magnet that the upper surface of the second magnet exhibits. The magnetic surface is magnetically attracted to the first magnetic surface in a planar shape.

  According to a second aspect of the front-mounted glasses according to the present invention, there are provided main body glasses in which left and right lens parts are connected to each other by a first connecting part, and left and right auxiliary members that can cover the front surfaces of the left and right lens parts on the front side. Auxiliary glasses formed by connecting the lens portions to each other with a second connecting portion, and the second connecting portion can be detachably attached to the lower surface of the first connecting portion in a magnetically attracted state. In addition, at least a central portion of the lower surface of the first connecting portion in the left-right direction is provided with one receiving recess that is opened only at the lower end, and one of the first magnets is fixed to the receiving recess. And the lower surface of this 1st magnet is exhibiting the horizontal, and the overhang | projection part before and behind the resin-made protective tape affixed on this lower surface is bend | folded so that the whole this lower surface may be covered, and this 1st magnet The lower surface of the protective tape adhered to the lower surface forms a first magnetic surface, and the first protective tape is adhered in this manner. The magnet is housed in the housing recess with the lower surface of the protective tape being horizontal, and an adhesive is filled in the gap between the side surface of the first magnet and the inner surface of the housing recess. Accordingly, the first magnet is fixed to the housing recess, and the first magnetic surface is flush with the lower surface of the first connecting portion. In addition, at least a central portion in the left-right direction of the upper surface of the second connecting portion is provided with one second magnet whose upper surface is horizontal, and a second magnet that the upper surface of the second magnet exhibits. The magnetic surface is magnetically attracted to the first magnetic surface in a planar shape.

  According to a third aspect of the front-mounted spectacles according to the present invention, the main spectacles in which the left and right lens parts are connected to each other by the first connecting part, and the left and right auxiliary that can cover the front surface of the left and right lens parts on the front side. Auxiliary glasses formed by connecting the lens portions to each other with a second connecting portion, and the second connecting portion can be detachably attached to the lower surface of the first connecting portion in a magnetically attracted state. And at least a central portion of the lower surface of the first connecting portion in the left-right direction is provided with one receiving recess that opens only at the lower end, and one of the first magnets is fixed to the receiving recess, The first magnet is provided with end portions whose end surfaces are semicircular arc-shaped projecting surfaces on the left and right sides of a central portion that is rectangular or square in plan view, and the lower surface of the first magnet is horizontal. It is made of resin and is attached so as to cover only the lower surface of the central portion. Overhang of the front and rear of the tape is bent and is adhered to the side of the front and rear of the first magnet, the lower surface of the protective tape adhered to the lower surface forms a first magnetic surface. Then, the first magnet to which the protective tape is adhered in this manner is accommodated in the accommodating recess with the lower surface of the protective tape being horizontal, and the side surface of the first magnet and the first magnet The first magnet is fixed to the receiving recess by filling the gap between the receiving recess and the inner surface with the adhesive, and the first magnetic surface is connected to the lower surface of the first connecting portion. It is in the same state. In addition, at least a central portion in the left-right direction of the upper surface of the second connecting portion is provided with one second magnet whose upper surface is horizontal, and a second magnet that the upper surface of the second magnet exhibits. The magnetic surface is magnetically attracted to the first magnetic surface in a planar shape.

  In the first aspect, the first magnetic surface exhibited by the lower surface of the first magnet is configured as the lower surface itself of the first magnet, and the covering portion covering the lower surface is horizontal. It may be configured as a lower surface.

  In the first aspect, the second magnetic surface exhibited by the upper surface of the second magnet is configured as the upper surface itself of the second magnet, and the horizontal surface of the covering portion covering the upper surface is also provided. It may be configured as the top surface.

  In each of the above aspects, the first connecting portion is curved to protrude forward, and the receiving recess is curved along the edge of the first connecting portion. In some cases, the curved first magnet is accommodated in the accommodating recess.

The present invention has the following excellent effects.
(1) The first magnet is exposed only on the lower surface of the first connecting portion in order to fix the first magnet to the receiving recess provided on the lower surface of the first connecting portion constituting the main body glasses. It is not exposed on the top or side. Therefore, according to the present invention, it is possible to provide front-mounted glasses in which the first magnet does not impair the appearance of the main body glasses.

(2) Since the number of magnets provided in the first connecting portion is one, unlike the case where two magnets are attached as in the prior art, it is only necessary to form an accommodation recess for fixing the magnets in one place. For this reason, it is possible to reduce the processing labor for forming the housing recess. In addition, since there is one magnet to be accommodated in the accommodating recess, it is easy to attach the magnet to the accommodating recess with high accuracy, with the first magnetic surface exhibited by the lower surface thereof being horizontal. Therefore, according to the present invention, the production efficiency of the main body glasses can be improved and the production cost can be reduced.

(3) Since the first magnet provided in the first connecting portion and the second magnet provided in the second connecting portion are each one, the first magnetism exhibited by the lower surface of the first magnet The surface and the second magnetic surface exhibited by the upper surface of the second magnet can be easily formed horizontally with high accuracy, whereby both horizontal magnetic surfaces can be brought into a surface-contact magnetic attracting state. Therefore, according to the present invention, the auxiliary glasses can be attached to the main body glasses in a stable magnetic adsorption state by effectively utilizing the magnetic force of the first magnet and the second magnet.

(4) Since the first magnet is provided in the first connecting portion and the second magnet is provided in the second connecting portion, the positional state of magnetic attraction between the first magnet and the second magnet is It is uniquely determined. Therefore, according to the present invention, it is possible to attach the auxiliary glasses in a state where they are properly positioned with respect to the main body glasses, if both magnets are in the attracted state.

(5) Also, since there is only one first magnet provided in the first connecting portion, the size of the magnet provided in the receiving recess can be increased according to the left and right length of the receiving recess. The adsorption area can be increased. Therefore, according to the present invention, the required magnetic attraction force can be exhibited according to the weight and size of the auxiliary glasses, and the auxiliary glasses can be attached to the main body glasses in a stable magnetic adsorption state.

(6) A protective tape is attached so as to cover the entire lower surface (magnet surface) of the first magnet, and the protruding portions of the front and rear of the protective tape are folded and attached to the front and rear sides of the magnet. The magnet to which the protective tape is adhered in this way is accommodated in the accommodating recess with the lower surface of the protective tape being horizontal, and between the side surface of the magnet and the inner surface of the accommodating recess. When filling the formed gap with an adhesive such as an epoxy resin, the lower surface of the protective tape attached to the lower surface of the magnet forms a horizontal magnetic surface (first magnetic surface). When applying epoxy resin to the magnet surface as in the past, the magnetic surface could be rounded, so the magnetic force of the magnet could not be used effectively. Thus, a horizontal magnetic surface that improves the magnetic attractive force can be formed easily and reliably. Then, the protective tape attached in this way is in a state where the front and rear projecting portions are attached to the front and back side surfaces of the magnet, and the attached portion on the side surface is embedded in the adhesive. There is no risk of the tape peeling off the magnet. Thereby, the magnetic surface formed by sticking of this protective tape is maintained in a stable state.

  Further, the magnet can be rustproofed by the protective tape, and the protective tape is adhered to the lower surface of the magnet, so that the impact of the magnetic part upon magnetic attraction to the magnet is reduced. Accordingly, the lower surface (magnet surface) of the magnet can be protected even when the auxiliary glasses are repeatedly attached and detached.

  Further, in the state where the front and rear projecting portions of the protective tape are stuck to the front and rear side surfaces of the magnet, the magnet is housed in the housing recess and bonded and fixed. You can expect a buffering action by the protective tape. For this reason, the impact applied to the cured product of the adhesive such as epoxy resin filled in the gap can be reduced, and the adhesion and fixing state of the magnet can be stably maintained.

It is a perspective view which shows the main body spectacles and auxiliary spectacles which comprise the front-hanging spectacles concerning this invention. It is a perspective view which shows the state which attached auxiliary spectacles to main body spectacles. It is the perspective view and sectional drawing explaining the fixation structure of the 1st magnet with respect to the accommodation recessed part of the 1st connection part of main body spectacles. It is the perspective view and sectional drawing explaining the fixation structure of the 2nd magnet with respect to the 2nd connection part of auxiliary glasses. It is sectional drawing explaining the magnetic attraction | suction state of the 1st magnetic surface of a 1st connection part, and the 2nd magnetic surface of a 2nd connection part. It is a fragmentary perspective view which shows the other aspect of the front spectacles concerning this invention. It is a perspective view explaining the process of fixing the 1st magnet by which the lower surface was coat | covered with the protective tape to the accommodation recessed part of the 1st connection part of main body spectacles. It is the perspective view and sectional drawing which show the state which fixed the 1st magnet to the accommodation recessed part of the 1st connection part. It is the perspective view and sectional drawing which show the process of fixing a 2nd magnet to the 2nd connection part of auxiliary glasses with a fixed state. It is sectional drawing explaining the magnetic attraction | suction state of the 1st magnetic surface of a 1st connection part, and the 2nd magnetic surface of a 2nd connection part. It is a perspective view which shows the apron-type spectacles which comprise auxiliary spectacles as a repellent type spectacles. It is sectional drawing which shows the raising state of the auxiliary spectacles in the spectacles. It is sectional drawing which shows the state which fixed the 2nd magnet coat | covered with the protective tape to the 2nd connection part in the magnetic adsorption state of a 1st magnet and a 2nd magnet. It is sectional drawing which shows the other aspect of a horizontal 1st magnetic surface and a horizontal 2nd magnetic surface. It is the perspective view which shows the other aspect of the 1st magnet coat | covered with the protective tape, a bottom view, and sectional drawing which shows the state which fixed this 1st magnet to the accommodation recessed part. It is the perspective view which shows the other aspect of the 1st magnet coat | covered with the protective tape, a bottom view, and sectional drawing which shows the state which fixed the 1st magnet to the accommodation recessed part. It is the perspective view and bottom view which show the other aspect of the form of an accommodation recessed part and the form of a 1st magnet. It is sectional drawing which shows the state which stuck the 1st magnet to the bottom face of the accommodation recessed part via the double-sided adhesive tape. It is a perspective view which shows an example of the conventional eyeglasses. It is sectional drawing explaining the problem at the time of apply | coating an epoxy resin to a magnet surface.

  1-2, the front spectacles 1 according to the present invention is configured such that the auxiliary spectacles 3 can be detachably attached to the main spectacles 2 in a magnetically attracted state.

  As shown in FIGS. 1 to 3, the main body glasses 2 are configured as edgeless glasses with the lower side of the rim missing, and the left and right lens portions 5, 5 are connected to each other by the first connecting portion 6. The lens portions 5, 5 are connected to both end portions 11, 11 of the rim 10 attached to the upper edge portion 9 of the lens 7, and the cord ends of the cord 13 attached to the lower edge portion 12 of the lens 7. The parts 15 and 15 are fixed. As shown in FIG. 3, at least the central portion 14 in the left-right direction of the horizontal lower surface 16 of the first connecting portion 6 (in the present embodiment, the central portion 14 and the left and right side portions continuous to the central portion 14). The bottom surface (top surface) 17 is formed in a horizontal plane, is opened only at the lower end 19 and extends in the left-right direction, and the left and right end portions are semi-circular concave ones 20 and 20. Two receiving recesses 21 are provided, and one of the first magnets 22 is fitted into the receiving recess 21 and fixed by adhesion.

  For example, as shown in FIG. 3 (A), the first magnet 22 has end faces substantially in contact with the semicircular arc-shaped concave surfaces 20 and 20 on the left and right sides of a central portion 22a that is rectangular in a plan view. End portions 22b and 22b having semicircular arc-shaped projecting surfaces 23 and 23 that can contact each other are provided. The lower surface 25 and the upper surface 26 of the first magnet 22 are formed as flat surfaces.

  For example, the dimension of each part of the accommodating recess 21 and the dimension of each part of the first magnet 22 are 2.0 mm, the long side length is 8.8 mm, and the depth thereof is The first magnet 22 has a short side length of 1.8 mm, a long side length of 8.6 mm, and a thickness of 1.5 mm.

  The first magnet 22 is housed in the housing recess 21 with the lower surface 25 thereof being horizontal, and between the side surface 27 of the first magnet 22 and the inner surface 29 of the housing recess 21. An adhesive (for example, epoxy resin) 31 is filled in the gap 30.

  In the present embodiment, the lower surface 25 itself of the first magnet 22 housed in the housing recess 21 and bonded and fixed in this way is the horizontal first magnetic surface 32, and the first magnetic surface 32. The surface 32 is slightly flush with the lower surface 16 of the first connecting portion 6 and slightly protrudes from the lower surface 16. Depending on the manufacturing error of the first magnet 22 and the processing error of the housing recess 21, it may protrude by about 0.1 mm to 0.2 mm. That is, the first magnetic surface 32 is flush with the lower surface 16 of the first connecting portion 6. Therefore, the first magnet 22 provided on the lower surface 16 of the first connecting portion 6 is exposed only on the lower surface 16 of the first connecting portion 6, as shown in FIG. Since the upper surface 28 and the side surface 34 are not exposed, the first magnet 22 does not impair the appearance of the main body glasses 2.

  The auxiliary glasses 3 can be configured to have a light shielding function, a polarization function, a vision correction function, a 3D display function, and the like. In this embodiment, it is configured as sunglasses, and the left and right auxiliary lens portions 37 and 37 that can cover the front surfaces 36 and 36 of the left and right lens portions 5 and 5 from the front side are connected by a second connecting portion 39. Configured. The second connecting portion 39 is configured such that the central portion 40 of the upper surface 45 in the left-right direction overlaps the central portion 14 of the lower surface 16 of the first connecting portion 6, and at least at the central portion 40. (In this embodiment, the central portion 40 and the left and right side portions connected to the central portion 40) As shown in FIG. 4A, the left and right end portions have semicircular arc-shaped concave surfaces 41 and 41 as shown in FIG. A rectangular through hole 42 is provided, and, for example, one second magnet 43 having the same configuration as the first magnet 22 is press-fitted into the through hole 42, and the upper surface 38 of the second magnet 43 The second magnetic surface 46 itself is horizontal.

  However, when the second connecting portion 39 of the auxiliary glasses 3 is overlapped on the first connecting portion 6 of the main body glasses 2 from the lower side as shown in FIGS. The first magnetic surface 32 and the second magnetic surface 46 are stably in a magnetic attracting state in a horizontal surface contact state, whereby the auxiliary glasses 3 are attached to and detached from the main body glasses 2 in a magnetic attracting state. Can be attached as possible.

  And since the 1st magnet 22 attached to the 1st connection part 6 is one as mentioned above, unlike the case where a several magnet is attached like before, the accommodation for fixing a magnet is carried out. The formation of the recess 21 is only required at one place, and the processing labor can be reduced. Further, it is easy to attach the first magnet 22 to the receiving recess 21 with high accuracy, with the lower surface 25 (first magnetic surface 32) being horizontal. Therefore, the production efficiency can be improved. Further, since one magnet is used in this way, it is possible to increase the adsorption area according to the left and right lengths of the housing recess 21, and the first magnetic surface according to the weight and form of the auxiliary glasses 3. It is possible to increase the magnetic attraction force between the second magnetic surface 46 and the second magnetic surface 46 to improve the stability of the magnetic attraction state.

  Further, the first magnet 22 of the first connecting portion 6 and the second magnet 43 of the second connecting portion 39 can be strongly magnetically attracted, and the left and right directions of the lower surface 16 of the first connecting portion 6 can be One of the first magnets 22 is provided at least in the central portion 14 and one of the second magnets 43 is provided in at least the central portion of the upper surface 45 of the second connecting portion 39 in the left-right direction. The position of magnetic attraction between the first magnet 22 and the second magnet 43 is uniquely determined, and the auxiliary glasses 3 can be attached to the main body glasses 2 in a required position. If a magnetic part made of an iron piece other than the magnet is provided in the second connecting part 39, the magnetic part of the second connecting part 39 and the first magnet 22 of the first connecting part 6 are magnetically attracted. Even if it is in a state, since it is a magnetic adsorption state at an arbitrary position in the left-right direction of the magnetic part, it is not always possible to attach the auxiliary glasses 3 in a state of being positioned with respect to the main body glasses 2 as desired. However, in the present invention, since the magnets are magnetically attracted as described above, the positional state of the magnetic attraction between the first magnet 22 and the second magnet 43 is unambiguous. It will be determined.

  FIGS. 6 to 9 show another embodiment of the front spectacles 1 according to the present invention, and are configured so that the auxiliary spectacles 3 can be detachably attached to the main spectacles 2 in a magnetically attracted state. Has been. Since the main body glasses 2 are configured in the same manner as in the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

  The first magnet 22 fixed to the first connecting portion 6 is formed in a rectangular parallelepiped shape that is long in the left-right direction and the left and right end portions have vertical planes 44, 44, for example, as shown in FIG. The lower surface 25 and the upper surface 26 are formed as flat surfaces. Then, as shown in FIGS. 7A and 7B, a resin protective tape 47 is attached so as to cover the entire lower surface 25, and the overhanging portions 49, 49 before and after the protective tape 47 are bent. The first magnet 22 is attached to, for example, the lower portions 52 and 53 of the front and rear side surfaces 50 and 51. The overhanging portions 49 and 49 may be attached to the entire front and rear side surfaces 50 and 51.

  For example, the dimension of each part of the receiving recess 21 and the dimension of each part of the first magnet 22 are 2.0 mm, the long side length is 8.6 mm, and the depth thereof is The first magnet 22 has a short side length of 1.8 mm, a long side length of 6.6 mm, and a thickness of 1.5 mm. The protective tape 47 is made of, for example, a transparent polyester tape, has a thin thickness of, for example, about 30 to 50 μm, is soft and elastic, and is strong.

  As shown in FIGS. 8A and 8B, the first magnet 22 to which the protective tape 47 is attached in this manner is arranged so that the receiving recess 21 is in a state where the lower surface 55 of the protective tape 47 has a horizontal surface. And an adhesive (for example, epoxy resin) 31 is filled in a gap 30 formed between the side surfaces 50 and 51 of the first magnet 22 and the inner surface 29 of the housing recess 21. In this embodiment, the lower surface 55 of the protective tape 47 is flush with the lower surface 16 of the first connecting portion 6.

  Thus, in order to fix the first magnet 22 to the receiving recess 21 provided on the lower surface 16 of the first connecting portion 6, the lower surface of the first magnet 22 housed in the receiving recess 21 and bonded and fixed. The lower surface 45 (the lower surface of the covering portion 48) of the protective tape 47 attached to 25 forms a horizontal first magnetic surface 32, and the first magnetic surface 32 is the first connecting portion 6. The lower surface 16 is flush with or slightly protrudes from the lower surface 16. In this embodiment, the protective tape 47 protrudes about the thickness (about 30 to 50 μm). That is, the first magnetic surface 32 is flush with the lower surface 16 of the first connecting portion 6. Therefore, the first magnet 22 provided on the lower surface 16 of the first connecting portion 6 is exposed only on the lower surface 16 of the first connecting portion 6, and is exposed on the upper surface 28 and the side surfaces 34 and 34 thereof. Is not exposed, the first magnet 22 does not impair the appearance of the main body glasses 2.

  Further, the protective tape 47 can prevent damage to the magnet, such as peeling off the plating on the lower surface 25 of the first magnet 22 or rusting the magnet.

  When the protective tape 47 is attached only to the lower surface 25 of the first magnet 22, there is a possibility that the protective tape 47 may come off from the edge portion 57. On the other hand, in the present invention, the overhanging portions 49, 49 on the front and rear sides of the protective tape 47 are bent and attached to, for example, the lower portions 52, 53 of the front and back side surfaces 50, 51 of the first magnet 22. In this way, the first magnet 22 with the protective tape 47 attached is fitted into the receiving recess 21. Then, an adhesive (for example, epoxy resin) 31 is filled in the gap between the side surfaces 50, 51, 54, 54 of the first magnet 22 and the inner surface 29 of the housing recess 21, and the first magnet 22 is filled. Is fixed to the receiving recess 21 by adhesion. As a result, as shown in FIG. 8B, the pasted portions (projected portions) 49, 49 before and after the protective tape 47 are embedded in the adhesive 31, so that the protective tape 47 is the first magnet. Therefore, the first magnetic surface 32 formed by adhering the protective tape 47 can be held in a stable state.

  The first magnet 22 is small because it is fixed to the first connecting portion 6 that is a small component, and the surface area of the lower surface 25 is small. Accordingly, the protective tape 47 can be easily peeled off only by attaching the protective tape 47 only to the lower surface 25 of this small area. However, the protective tape 47 attached to the lower surface 25 can be peeled off by configuring as described above. It can be prevented.

  Further, the auxiliary glasses 3 can be configured to have a light shielding function, a polarization function, a vision correction function, a 3D display function, and the like in the same manner as described in the first embodiment. In the present embodiment, it is configured as sunglasses. As shown in FIG. 9, the left and right auxiliary lens portions 37 and 37 that can cover the front surfaces 36 and 36 of the left and right lens portions 5 and 5 from the front side are secondly connected. The connecting portion 39 is connected. The second connecting portion 39 is configured such that the central portion 40 in the left-right direction of the upper surface 45 overlaps the lower surface 16 of the first connecting portion 6 as shown in FIG. 6, and at least the central portion. 40 (in the present embodiment, the central portion 40 and the left and right side portions that are continuous with the central portion 40) are provided with a rectangular through hole 42 that is long in the left-right direction. As shown in (C), for example, one of the second magnets 43 having a rectangular parallelepiped shape similar to that of the first magnet 22 is press-fitted, and the upper surface 45 of the second connecting portion 39 itself is horizontal. The second magnetic surface 46 is used.

  However, when the second connecting portion 39 of the auxiliary glasses 3 is overlapped with the first connecting portion 6 of the main body glasses 2 as shown in FIG. The first magnetic surface 32 and the second magnetic surface 46 are stably in a magnetic attracting state in a horizontal surface contact state, whereby the auxiliary glasses 3 are detachably attached to the main body glasses 2 in a magnetic attracting state. be able to. Since the first magnet 22 has the protective tape 47 attached to the lower surface 25 thereof, the impact during the magnetic adsorption of the second magnet 43 to the first magnet 22 is mitigated, and the auxiliary glasses 3 can be attached and detached. Even if is repeated, the lower surface (magnet surface) 25 of the first magnet 22 can be protected.

  And since the 1st magnet 22 attached to the 1st connection part 6 is one as mentioned above, unlike the case where a several magnet is attached like before, the accommodation for fixing a magnet is carried out. The formation of the recess 21 is only required at one place, and the processing labor can be reduced. Further, it is easy to attach the first magnet 22 to the housing recess 21 with the lower surface 25 being horizontal. Therefore, the production efficiency can be improved. Further, since one magnet is used in this way, it is possible to increase the adsorption area according to the left and right lengths of the housing recess 21, and the first magnetic surface according to the weight and form of the auxiliary glasses 3. It is possible to increase the magnetic attraction force between the second magnetic surface 46 and the second magnetic surface 46 to improve the stability of the magnetic attraction state.

  Further, the first magnet 22 of the first connecting portion 6 and the second magnet 43 of the second connecting portion 39 can be strongly magnetically attracted, and the left and right directions of the lower surface 16 of the first connecting portion 6 can be One of the first magnets 22 is provided at least in the central portion, and one of the second magnets 43 is provided in at least the central portion of the upper surface 45 of the second connecting portion 39 in the left-right direction. 1, the position of the magnetic attraction of the first magnet 22 and the second magnet 43 is uniquely determined, and the auxiliary glasses 3 are properly positioned with respect to the main body glasses 2. It can be attached.

  Further, the first magnet 22 is accommodated in the accommodating recess 21 in the state where the front and rear projecting portions 49, 49 of the protective tape 47 are adhered to the front and rear side surfaces 50, 51 of the first magnet 22. Since it is bonded and fixed, it is possible to expect a buffer action by the protective tape 47 attached to the front and rear side surfaces 50 and 51. For this reason, the impact applied to the cured product 59 of an adhesive such as an epoxy resin filled in the gap 30 can be reduced, and the adhesion and fixing state of the magnet can be stably maintained.

  The present invention is by no means limited to those shown in the above-described embodiments, and it goes without saying that various design changes can be made within the scope of the claims. One example is as follows.

(1) FIGS. 11 to 12 show a case where the front spectacles 1 according to the present invention are configured as repellent spectacles, and the first spectacles 2 configured in the same manner as in the above embodiment. At least in the center portion 14 in the left-right direction of the lower surface 16 of the connecting portion 6 (in the present embodiment, the center portion 14 and a series of left and right side portions connected to it), the lower end is opened and An accommodation recess 21 extending in the direction is provided, and the first magnet 22 is fixed to the accommodation recess 21 in the same manner as described above. As shown in FIG. 12, the auxiliary glasses 3 have a state in which the left and right auxiliary lens portions 37 and 37 cover the front surfaces 36 and 36 of the left and right lens portions 5 and 5 on the front side, and the left and right auxiliary lens portions. The auxiliary glasses 3 are configured to be held in a desired repelled state.

  More specifically, as shown in FIG. 11A, the auxiliary glasses 3 are provided on both sides in the left-right direction of the upper portion of the second connecting portion 39 that connects the left and right auxiliary lens portions 37, 37 to each other. Bearing projections 60 and 60 are provided, and an insertion recess 61 is provided between the bearing projections 60 and 60, while an insertion projection 63 provided on the holder portion 62 is fitted into the insertion recess 61. Has been made. Upper and lower gripping pieces 65 and 66 are provided on the upper and lower sides of the rear portion of the holder portion 62 so as to face each other. Between the upper and lower gripping pieces 65 and 66, the first glasses 2 of the main body glasses 2 are provided. An accommodating groove 67 for fitting the connecting portion 6 is formed. Then, the second magnet 43 is fixed to the upper surface 69 of the lower holding piece 66 by, for example, adhesion, so that at least the central portion 40 in the left-right direction of the upper surface 45 of the second connecting portion 39 (this embodiment). In this case, one of the second magnets 43 is provided on the central portion 40 and the left and right side portions connected to the central portion 40 in series.

  However, by inserting the first connecting portion 6 into the receiving groove 67, as shown in FIG. 12, the first portion provided in the central portion in the left-right direction of the lower surface 16 of the first connecting portion 6 is provided. A horizontal first magnetic surface 32 as the lower surface 25 of the magnet 22 and a horizontal second magnetic surface 46 as the upper surface 38 of the second magnet 43 provided in the second connecting portion 39. By setting the magnetic adsorption state, the second connecting portion 39 is detachably attached to the first connecting portion 6 in the magnetic attractive state. In this state, the auxiliary eyeglasses 3 include a state in which the left and right auxiliary lens portions 37 and 37 cover the front surfaces 36 and 36 of the left and right lens portions 5 and 5 on the front side, and the left and right auxiliary lens portions 37 and 37. It can be rotated in an angle range with respect to the state where 37 is repelled.

(2) In the front-mounted spectacles 1 according to the present invention, the first magnetic surface 32 exhibited by the lower surface 25 of the first magnet 22 is the lower surface 25 itself, and also covers the lower surface 25. It may be configured as a horizontal lower surface of the portion 44. Further, the second magnetic surface 46 exhibited by the upper surface 38 of the second magnet 43 is not only the upper surface 38 itself but also a horizontal upper surface of the covering portion 74 covering the upper surface 38. There is also.
And the said coating | coated parts 44 and 74 can be comprised by sticking of a coating piece, baking painting of spraying resin, etc. other than being comprised by sticking the protective tape 47 as mentioned above.

(3) The lens portions 5 and 5 constituting the main body glasses 2 and the auxiliary lens portions 37 and 37 constituting the auxiliary glasses 3 are of a full rim type in which the entire circumference of the lens 7 is held by a rim. It may be a half rim type in which a rim is attached only to an upper part, a lower part, an inner part, and an outer part of the lens, or may be a single lens having no rim.

(4) The first connecting portion 6 and the second connecting portion 39 may be made of metal or resin.

(5) The receiving recess 21 provided in at least the center portion 14 in the left-right direction of the lower surface 16 of the first connecting portion 6 is, for example, a square shape in addition to the one extending in the left-right direction as described above. It may be provided only in the portion 14. Then, the first magnet 22 having a square plate shape or a cubic shape is accommodated in the accommodation recess 21 having a square shape and is fixed by adhesion.

(6) FIG. 13A shows that an accommodation recess 68 is provided in at least a central portion in the left-right direction of the upper surface 45 of the second connection portion 39 in the same manner as in the first connection portion 6. 68 shows a state in which the second magnet 43 is bonded and fixed. In this case, for example, as shown in FIG. 13, the front and rear projecting portions of the same protective mask 47 made of resin, which is attached to the upper surface 38 so as to cover the entire upper surface 38 of the second magnet 43. 70 and 70 are bent and attached to the front and back side surfaces 71 and 72 of the second magnet 43, and the second magnet 43 thus attached with the protective tape 47 is attached to the upper surface 73 of the protective tape 47. (The upper surface of the covering portion 74) is accommodated in the accommodating recess 68 in a state where the second magnetic surface 46 is horizontal, and between the side surface 75 of the second magnet 43 and the inner surface 76 of the accommodating recess 68. An adhesive 31 such as an epoxy resin is filled in the gap 77 formed in the above, and the second magnet 43 is adhered and fixed to the housing recess 68. FIG. 13B shows a state in which the first magnetic surface 32 and the second magnetic surface 46 are magnetically attracted.

(7) In the present invention, the horizontal first magnetic surface 32 and the second magnetic surface 46 provided on the first connecting portion 6 are inclined slightly as shown in FIG. It may be configured as (included in a horizontal surface).

(8) As shown in FIGS. 15A, 15B, 16A, and 16B, for example, the first magnet 22 has a central portion 82a that is rectangular in plan view and a square shape in plan view. In the case where end portions 85 and 85 having an end surface 83 exhibiting a semicircular arc-shaped projecting surface are provided on the left and right of the central portion 82b, and the lower surface 25 of the first magnet 22 is configured to be horizontal, the lower surface 25 The protective tape 47 may be attached so as to cover the entire surface, and may be attached so as to cover only the lower surfaces 25a and 25b of the central portions 82a and 82b of the lower surface 25. In this case, the overhanging portions 49, 49 of the protective tape 47 are bent and attached to the front and back side surfaces 50, 51 of the first magnet 22 and attached to the lower surface 25 in the same manner as described above. The lower surface 45 of the protective tape 47 (the lower surface of the covering portion 44) forms the first magnetic surface 32. FIGS. 15C and 16C show a state in which the first magnet 22 is housed in the housing recess 21 configured in the same manner as shown in FIG. 3A and fixed by adhesion. .

(9) In the present invention, the accommodating recess 21 and the first magnet 22 accommodated in the accommodating recess 21 are curved along the outer edge of the first connecting portion 6 in addition to those extending linearly in the left-right direction. It may be configured to be bent or bent. For example, as shown in FIG. 17, the first connecting portion 6 is curved so as to protrude forward, and the receiving recess 21 is curved along the edge 89 of the first connecting portion 6. In some cases, the curved first concave portion 22 may be accommodated in the curved accommodating recess 21 in a substantially intimate state.

(10) The protective tape 47 may be a transparent tape or a colored tape.

(11) In FIG. 18, a double-sided adhesive tape 86 (for example, having a thickness of about 0.2 to 0.25 mm) 86 is adhered to the upper surface 26 of the first magnet 22 and the upper adhesive surface 87 is provided. The case where it sticks to the bottom face (top face) 17 of the said accommodation recessed part 21 (FIG.15 (B)) is shown. In this way, the fixing strength of the first magnet 22 in the housing recess 21 can be further improved.

DESCRIPTION OF SYMBOLS 1 Front-mounted spectacles 2 Main body spectacles 3 Auxiliary spectacles 5 Lens part 6 1st connection part 21 Accommodation recessed part 22 1st magnet 25 The lower surface of the 1st magnet 25a The lower surface of the center part 25b The lower surface of the center part 27 The side surface 29 of a magnet Recessed inner surface 30 Gap 31 Adhesive 32 First magnetic surface 37 Auxiliary lens portion 39 Second connecting portion 43 Second magnet 44 Covering portion 46 Second magnet surface 47 Protective tape 49 Overhang portion 50 Side surface 51 Side surface 55 Protection Lower surface of tape 74 Covering portion 82a Central portion 82b Central portion 83 End surface 85 End portion 89 Edge portion

Claims (8)

The main spectacles formed by connecting the left and right lens parts with a first connecting part, and the left and right auxiliary lens parts capable of covering the front surfaces of the left and right lens parts with the front side are connected with a second connecting part. Auxiliary glasses are provided, and the second connecting part can be detachably attached to the lower surface of the first connecting part in a magnetic adsorption state.
At least a central portion in the left-right direction of the lower surface of the first connecting portion is provided with one housing recess that opens only at the lower end, and one of the first magnets is fixed to the housing recess,
The first magnet is housed in the housing recess with the lower surface thereof being horizontal, and an adhesive is filled in a gap between the side surface of the first magnet and the inner surface of the housing recess. The first magnet is fixed to the receiving recess, and the first magnetic surface exhibited by the lower surface of the first magnet is flush with the lower surface of the first connecting portion,
In addition, at least a central portion in the left-right direction of the upper surface of the second connecting portion is provided with one second magnet whose upper surface is horizontal, and a second magnet that the upper surface of the second magnet exhibits. A front spectacle having a magnetic surface magnetically adsorbed on the first magnetic surface in a planar shape. The main spectacles formed by connecting the left and right lens parts with a first connecting part, and the left and right auxiliary lens parts capable of covering the front surfaces of the left and right lens parts with the front side are connected with a second connecting part. Auxiliary glasses are provided, and the second connecting part can be detachably attached to the lower surface of the first connecting part in a magnetic adsorption state.
At least a central portion in the left-right direction of the lower surface of the first connecting portion is provided with one housing recess that opens only at the lower end, and one of the first magnets is fixed to the housing recess,
The lower surface of the first magnet is horizontal, and the front and rear projecting portions of the resin protective tape attached to the lower surface are folded so as to cover the entire lower surface, so that the front and rear of the first magnet The lower surface of the protective tape attached to the lower surface forms a first magnetic surface, and the first magnet to which the protective tape is attached in this manner is provided. The adhesive tape is housed in the housing recess with the lower surface of the protective tape being horizontal, and the gap is filled with an adhesive between the side surface of the first magnet and the inner surface of the housing recess. The first magnet is fixed to the receiving recess, and the first magnetic surface is flush with the lower surface of the first connecting portion;
In addition, at least a central portion in the left-right direction of the upper surface of the second connecting portion is provided with one second magnet whose upper surface is horizontal, and a second magnet that the upper surface of the second magnet exhibits. A front spectacle having a magnetic surface magnetically adsorbed on the first magnetic surface in a planar shape. The main spectacles formed by connecting the left and right lens parts with a first connecting part, and the left and right auxiliary lens parts capable of covering the front surfaces of the left and right lens parts with the front side are connected with a second connecting part. Auxiliary glasses are provided, and the second connecting part can be detachably attached to the lower surface of the first connecting part in a magnetic adsorption state.
At least a central portion of the lower surface of the first connecting portion in the left-right direction is provided with one receiving recess that opens only at the lower end, and one of the first magnets is fixed to the receiving recess, One magnet is provided with end portions whose end surfaces are semicircular arc-shaped projecting surfaces on the left and right sides of a central portion that is rectangular or square in plan view, and the lower surface of the first magnet is horizontal. The front and rear projecting portions of the resin protective tape that is attached so as to cover only the lower surface of the central portion are bent and attached to the front and rear sides of the first magnet, and are attached to the lower surface. The lower surface of the attached protective tape forms a first magnetic surface, and the first magnet to which the protective tape is attached in this manner is in a state where the lower surface of the protective tape is horizontal. The side of the first magnet and the inside of the housing recess are housed in the housing recess The first magnet is fixed to the accommodating recess by filling the gap between the first magnet and the lower surface of the first connecting portion. ,
In addition, at least a central portion in the left-right direction of the upper surface of the second connecting portion is provided with one second magnet whose upper surface is horizontal, and a second magnet that the upper surface of the second magnet exhibits. A front spectacle having a magnetic surface magnetically adsorbed on the first magnetic surface in a planar shape.   The front spectacles according to claim 1, wherein the first magnetic surface exhibited by the lower surface of the first magnet is the lower surface of the first magnet itself.   The front spectacles according to claim 1, wherein the first magnetic surface exhibited by the lower surface of the first magnet is a horizontal lower surface of a covering portion covering the lower surface.   The front spectacles according to claim 1, wherein the second magnetic surface exhibited by the upper surface of the second magnet is the upper surface of the second magnet itself.   The front spectacles according to claim 1, wherein the second magnetic surface exhibited by the upper surface of the second magnet is a horizontal upper surface of a covering portion covering the upper surface.   The first connecting portion is curved to protrude forward, and the receiving recess is curved along the edge of the first connecting portion, and the first receiving portion is bent into the curved receiving recess. The front spectacles according to claim 1, wherein one magnet is accommodated in a substantially close state.

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