JP5143296B2 - Lens connector for spectacles, interchangeable spectacles and lens forming substrate - Google Patents

Description

  The present invention relates to a lens connector for eyeglasses that allows lens exchange, and also relates to eyeglasses that can be exchanged using the same. Furthermore, the present invention relates to a lens forming substrate using the lens connector for eyeglasses.

  There are several types of glasses depending on the purpose of use. As one of them, there is a front-type spectacle that is configured to be attached to the main spectacles in a detachable manner so as to obtain a state in which sunglasses are put on.

  As an example of the front-type glasses, as disclosed in Japanese Utility Model Laid-Open No. 58-91721 (Patent Document 1), Japanese Patent Application Laid-Open No. 50-120461 (Patent Document 2), etc. Engaging with the outer edge portion and inner edge portion of the left and right lenses of the main spectacles as disclosed in Japanese Patent Application Laid-Open No. 2003-241149 (Patent Document 3), as disclosed in Japanese Patent Application Laid-Open No. 2003-241149. There is a front-type spectacle that is detachably attached to the main body spectacles via an elastic bending engagement piece that can be repelled. Alternatively, the left and right auxiliary lenses that can cover the left and right lens portions of the main body glasses from the front side as disclosed in Utility Model Registration No. 3117580 (Patent Document 4) and Utility Model Registration No. 3125901 (Patent Document 5). There is a front-type spectacle that is detachable from the lens frame of the main spectacles and that is not a splash-up type spectacle.

  Of these front-mounted spectacles, when the spectacles that can be repelled are attached to the main body spectacles, they can be used as sunglasses when the front-mounted spectacles are lowered, while entering a tunnel while driving a car, etc. When entering a dark place, by repelling it, it was possible to secure the field of view with the main body glasses and to ensure the safety of driving.

  In addition, as disclosed in Japanese Utility Model Publication No. 58-1000031 (patent document 6), the lower part of the left and right upper chord parts of the spectacles front frame (the eye and There has also been proposed a flip-up type spectacles in which the lens is attached to the upper chord part so that the lens can cover the opposing part). When the repellent glasses are, for example, far-sighted spectacles including reading glasses, while the repellent glasses can be lowered, an object located at a distant place such as a landscape can be viewed, while newspapers and books When I saw something close to me, such as reading, I could see it easily with the naked eye by repelling it. In addition, when the repellent glasses are sunglasses, they can be used as sunglasses when they are lowered, while they are repelled when entering a dark place such as when entering a tunnel while driving a car. As a result, it was possible to see the field of view with the naked eye, and to ensure driving safety.

  In such front-wearing glasses or repellent glasses, as an aspect of the configuration in which the lenses are attached to the left and right connecting pieces of the lens connecting member, for example, the lens is fitted to the left and right rims. As shown in FIG. 2, FIG. 1 of Patent Document 2, FIG. 6 of Patent Document 3, FIG. 2 of Patent Document 4, FIG. 3 of Patent Document 5, FIG. There is also provided a simple mounting structure in which a lens is fixed to the connecting piece using a rivet or a screw.

  In addition to the front-type spectacles and repellent spectacles that have a lens attached to the rim, the lens can be attached by riveting or screwing, even in such simple-type front spectacles or repellent spectacles. Since it was fixed to the mounting piece, the replacement of the lens was not originally planned.

  By the way, glasses may be properly used according to TPO (time, place, place). For example, in the case of outdoor activities such as fishing, golf, winter sports, and driving, light-shielding sunglasses, particularly polarized lens sunglasses are suitable. In such a case, normal glasses or sunglasses are worn until the destination is reached, and polarized lens sunglasses are worn at the destination. In daily life, different colors of sunglasses are also used to enjoy fashion.

  Conventionally, there has been a demand for using glasses according to TPO as described above, but since conventional glasses were not scheduled for replacement as described above, a plurality of glasses must be prepared. There was an economy.

Japanese Utility Model Publication No. 58-91721 Japanese Patent Laid-Open No. 50-120642 JP 2003-241149 A Utility Model Registration No. 3117580 Utility Model Registration No. 3125901 Japanese Utility Model Publication No.58-1000031

  The present invention has been developed in view of the above-described conventional problems. If a plurality of types of lenses are prepared, glasses suitable for the purpose of use can be easily and economically configured by properly using them. An object of the present invention is to provide a lens connector for use. It is another object of the present invention to provide eyeglasses with a simple configuration and interchangeable lenses. It is another object of the present invention to provide a lens forming base material that uses the lens connector for eyeglasses and can easily and accurately cut the lens form.

In order to solve the above problems, the present invention employs the following means.
In other words, the lens connector for glasses according to the present invention (hereinafter referred to as a lens connector) is a lens connector for glasses connected to the insertion piece of the lens connecting member, and is entirely made of plastic. A connector main body fixed to the surface is provided, and the connector main body is provided with an insertion hole as a blind hole with a closed bottom for allowing the insertion piece to be detachably inserted, and a lens at the open end of the insertion hole. On the side edge, a bottom guide piece for guiding the insertion piece toward the opening end is projected. A fixing pin that protrudes from one end to the other end of a fixing hole penetrating the lens is projected from a fixed surface portion fixed to the surface of the lens of the connector main body. In the state where the fastening pin is inserted into the fastening hole, the protruding portion protruding at the other end is crushed to form a retaining protrusion that engages with the peripheral portion of the other end. It is characterized by being made to.

  In the lens connector, it is preferable that side guide pieces protrude from both side edges of the opening end.

  In the lens connector, side guide pieces are provided on both side edges of the opening end so as to project on the bottom guide piece, and opposing inner surfaces of the both side guide pieces are directed from the opening end toward the opening end. It is preferable that the guide surface inclined outward and the distance between the guide surfaces be increased toward the opening end side.

In the lens connector, an engagement recess or an engagement hole may be provided on the inner surface of the insertion hole so that the engagement protrusion and the fixed surface portion can be engaged in a fitted state.
In the lens connector, in the engagement surface portion facing the fixed surface portion, the insertion piece is fully inserted into the insertion hole, and is engaged with the engagement protrusion provided on the insertion piece. An engagement hole that can be engaged is preferably provided.

  In the lens connector, it is preferable that the fastening pin protrudes with the bottom guide piece.

  In the lens connector, the fixing surface of the fixing surface portion with respect to the lens may be formed as a curved surface capable of contacting the surface of the lens.

  In the lens connector, an engagement groove that opens at the opening end and extends toward the bottom of the insertion hole is provided in the engagement surface that faces the fixed surface, and the insertion groove is inserted into the engagement groove. The engagement protrusion provided on the piece can be fitted, and the predetermined insertion state of the insertion piece with respect to the insertion hole is determined in a state where the front end of the engagement protrusion is in contact with the front end of the engagement split groove. It is preferable to configure as obtained.

  In the lens connector, an engagement recess is provided on a groove side surface of the engagement split groove, and the engagement recess is in a state in which the tip of the engagement protrusion is in contact with the groove tip of the engagement split groove. It is preferable that the engagement protrusion provided on the engagement protrusion is engaged in a fitted state.

  The fastening pin projecting from the fixed surface portion is one, and the fastening pin has a non-circular cross section, and the fastening pin is provided on the lens. The fastening hole is inserted into a non-circular fastening hole that matches the cross-sectional shape, and in this state, the protruding portion protruding at the other end of the fastening hole is crushed. It is preferable that a retaining protrusion that engages with the peripheral edge of the other end is formed.

  The interchangeable lens glasses (hereinafter referred to as eyeglasses) according to the present invention include a lens coupling member provided with left and right insertion pieces protruding in the opposite direction in the horizontal direction, and the above-described lens coupling tool fixed to the lens. A lens with a connector, and the lens connector for spectacles is fixed to the upper edge portion of the lens surface with the insertion hole in a horizontal state, and the insertion hole is inserted into the insertion hole. A piece is removably inserted. A fastening pin projecting from the fixed surface portion is inserted into a fastening hole penetrating the upper edge portion from one end to the other end, and the projecting portion projecting from the other end is crushed. Thus, a retaining protrusion that engages with the peripheral edge of the other end is formed.

  The glasses include a lens coupling member provided with left and right insertion pieces protruding downward, and a lens with a coupling device in which the lens coupling device for the glasses is fixed to the lens, and the lens for the glasses The connector is fixed to the inner edge of the lens surface (side closer to the nose) with the insertion hole fixed in the vertical direction, and the insertion piece is removably inserted into the insertion hole. A fastening pin protruding from the fixed surface portion is inserted into a fastening hole penetrating the edge portion on the inner side (side closer to the nose) from one end to the other end, and the other end It is preferable that the protruding portion that protrudes at the end is crushed to form a retaining protrusion that engages with the peripheral edge of the other end.

  The lens forming substrate according to the present invention is characterized in that the above-described lens connector for spectacles is fixed to a plastic lens forming plate capable of forming a lens in a required form by cutting.

The present invention has the following excellent effects.
(1) Since the lens connector according to the present invention is entirely made of plastic and has a fastening pin, the fastening pin is inserted into a fastening hole provided in the lens, and the protruding portion is crushed. It can be fixed to the lens easily and reliably.
And since this lens coupling tool has an insertion hole into which the insertion piece of the lens coupling member can be detachably inserted, the lens can be exchanged. Therefore, the spectacles suitable for the purpose of use can be configured economically.
Further, since the lens coupling tool is provided with a bottom guide piece protruding, the insertion piece can be inserted into the insertion hole without difficulty by the guide action of the bottom guide piece without damaging the lens.

(2) Moreover, since the spectacles according to the present invention include a lens with a coupling tool in which the lens coupling tool is fixed to the lens via a fastening pin, the lens with the coupling tool is inserted into the lens coupling member. By detachably attaching to the lens, it is possible to easily construct a front-hanging environment (a repelling type and a non-repelling type) capable of exchanging lenses and a repelling spectacle.
Therefore, according to the present invention, the glasses suitable for the purpose of use can be easily configured by simply exchanging the lens while using the lens connecting member as it is. is there.

(3) The lens forming substrate according to the present invention is formed by fixing the lens connector to a plastic lens forming plate capable of forming a lens in a required form by cutting. Therefore, when the lens forming substrate is used, the lens forming plate is attached with a required lens contour line in a state where the lens forming plate is connected to the insertion piece of the lens connecting member via the lens connecting tool, and then the lens forming is performed. By removing the base material from the insertion piece, even the end user can easily and accurately cut the lens forming plate into a desired lens form, and can constitute individual glasses.

(4) While providing an engagement recess or engagement hole on the inner surface of the insertion hole, and providing an insertion protrusion on the insertion piece that can engage with the engagement recess or engagement hole, By engaging, it can be confirmed that the insertion piece has been fully inserted into the insertion hole, and the insertion piece can be reliably prevented from coming off.

(5) When projecting side guide pieces on both side edges of the opening end, the tip of the insertion piece is guided by the side guide pieces without causing lateral displacement of the insertion hole. It is possible to guide more smoothly toward the open end. In this case, the opposing inner surfaces of the both side guide pieces are guide surfaces that are inclined outward from the opening end toward the opening end, and the distance between the two guide surfaces is increased toward the opening end. When doing so, the space between the tips of the side guide pieces can be expanded further. Therefore, the distal end portion of the insertion piece can be inserted between the expanded distal ends, and the insertion piece can be guided more smoothly.

(6) When the fastening pin projects from the bottom guide piece, the bottom guide piece can be fixed to the lens surface in a more stable fixed state.

(7) When the fixed surface of the fixed surface portion with respect to the lens is formed into a curved surface that can come into surface contact with the surface of the lens, the stability of the fixed state of the lens connector with respect to the lens can be improved.

It is a disassembled perspective view which shows the lens connector based on this invention. It is a perspective view which shows a lens coupling tool. FIG. It is sectional drawing explaining the process of fixing a lens coupling tool to a lens. It is a perspective view which shows the process of attaching a lens with a connection tool to a lens connection member. It is sectional drawing explaining the process of inserting the insertion piece of a lens connection member in the insertion hole of the lens connection tool fixed to the lens. FIG. 6 is a front view showing a repellent type front spectacles in which lenses are connected to left and right insertion pieces of a lens connecting member. It is a side view which shows the state which mounted | worn the spectacles with the main body spectacles in the state which lowered | hung the auxiliary lens. It is a side view which shows the state which lifted up the auxiliary lens. It is a perspective view which shows a lens connection member. It is a perspective view which shows the state which attached the lens with a connection tool to the insertion piece of a lens connection member. It is a front view which shows the spectacles which attached the lens which connects the left and right auxiliary lens part in series to the lens connecting member. It is a front view which shows the lens connection member. It is a front view which shows the lens. It is sectional drawing explaining the process of fixing a lens coupling tool to the lens. It is sectional drawing which shows the state which fixed the lens coupling tool to the lens. It is a front view explaining the process of attaching the lens which a left and right auxiliary lens part continues to a series to a lens connection member. It is a front view which shows the flip-up type spectacles which attached the lens with a connection tool to the lens connection member. FIG. It is a disassembled perspective view explaining the process of forming the lens with a connector which comprises the repelling type spectacles. It is a perspective view which shows the state which connected the lens with a connection tool to the lens connection member. It is a side view which shows the repellent type spectacles. It is a front view which shows the other Example of the repellent type spectacles which attached the lens with a connection tool using the lens in which the lens on either side was connected in series to the lens connection member. It is a front view which shows the lens connection member used for the repellent type spectacles. It is sectional drawing which shows the state which connected the lens with the connection tool to the insertion piece of the connection member. It is a perspective view which shows a lens formation base material. It is a perspective view which shows a lens formation board and a lens coupling tool. It is sectional drawing which shows the state which connected the lens with a connection tool formed by fixing the lens connection tool to a lens with the insertion piece of the connection member. It is a perspective view which shows the lens with a connector formed by cutting a lens formation board. It is a perspective view which shows the state which connected the lens with the connection tool to the insertion piece of the lens connection member. It is the perspective view which shows the other Example of a lens coupling tool, and sectional drawing which shows the fixed state with respect to a lens with the insertion procedure of an insertion piece. It is a perspective view which shows the other Example of a lens coupling tool with an insertion piece. It is a perspective view which shows the other Example of a lens coupling tool with an insertion piece. It is sectional drawing which shows the other aspect of the engagement state of an insertion piece and an insertion hole. It is sectional drawing which shows the other aspect of the engagement state of an engagement piece and an insertion hole. It is sectional drawing which shows the other aspect of the engagement state of an engagement piece and an insertion hole. It is sectional drawing which shows the other aspect which fixed the lens coupling tool to the lens using the fastening pin. It is sectional drawing which shows the other aspect which fixed the lens coupling tool to the lens using the fastening pin. It is the perspective view and sectional drawing explaining the process of fixing the lens coupling tool by which one fastening pin protrudes to a lens. It is sectional drawing which shows the state which fixed to the lens the lens coupling tool by which a fixation pin is protrudingly provided by the bottom part guide piece. It is sectional drawing explaining the process of connecting a lens with a connection tool to a lens connection member by inserting the insertion piece formed in the taper in the insertion hole formed in the taper. It is sectional drawing which shows the other aspect which connected the lens with a connection tool to the lens connection member by inserting the insertion piece formed in the taper in the insertion hole formed in the taper. It is sectional drawing which shows the other fixed state of the lens connection member with respect to a lens. It is the front view and sectional drawing which show the spectacles comprised by connecting the lens with a connection tool which fixes a lens connection tool to the inner edge part of a lens with the insertion piece of a lens connection member.

  1 to 3, the lens connector 1 according to the present invention is connected to the insertion piece 3 of the lens connecting member 2, and is entirely made of plastic, and includes a connector main body 6 fixed to the lens 5. It has. The insertion piece 3 has, for example, a rectangular plate shape, and a spherical engagement protrusion 9 projects from a central portion of one surface 7 thereof.

  The lens connector 1 can be formed using a plastic such as polyacetal, nylon, polycarbonate, ABS resin.

  As shown in FIGS. 1 to 4, the lens connector 1 is provided with an insertion hole 10 as a blind hole in which the bottom portion 17 is closed, into which the insertion piece 3 can be detachably inserted, and the lens 5. It is fixed to the lens 5 by a fixed surface portion 12 as a front surface portion 12a facing the front surface 8 (for example, the rear surface 11). A bottom guide piece 16 projects from the lens-side edge 15 of the opening end 13 of the insertion hole 10.

  1-4, the connector main body 6 has a flat rectangular parallelepiped box shape that is relatively long in the insertion direction of the insertion piece 3, and the insertion piece 3 is detachably inserted. The insertion hole 10 as a blind hole with the bottom 17 (FIG. 3 (B)) closed and one end opened is formed long in the axial direction of the connector body 6. The insertion hole 10 has a rectangular cross-sectional shape.

  The bottom guide piece 16 that guides the distal end portion 20 (FIG. 4C) of the insertion piece 3 toward the opening end 13 projects in a series on the lens-side edge 15 of the opening end 13. The fixed surface 21 on the lens side of the fixed surface portion 12 and the insertion surface 22 facing the fixed surface 21 are both formed in a series of flat surfaces without steps. The connector body 6 is fixed to the surface 8 (rear surface 11 or front surface 23) of the lens 5 by the fixing surface 21. In FIG. 1 and FIG. 4 (C), the state fixed to the rear surface 11 of the lens 5 is shown.

  In this embodiment, as shown in FIGS. 2 and 3B, side guide pieces 26 and 26 are provided on the opposite side edges 25 and 25 of the opening end 13 so as to protrude on the bottom guide piece 16. ing. As shown in FIG. 3B, the inner surfaces of the both side guide pieces 26 and 26 are guide surfaces 27 and 27 that are inclined outward from the opening end 13 toward the opening end tip side. The space | interval between 27 and 27 is expanded toward the opening end side.

  Further, two fastening holes 29 and 29 (FIGS. 1 and 4 (FIG. 1 and FIG. 4 (B)) provided on the both sides in the length direction of the fixing surface 21 of the connector main body 6 and provided at a small interval in the lens 5. A)) is provided with two fastening pins 32, 32 which are inserted from one end 30 toward the other end 31. In the present embodiment, the fastening pin 32a on the opening end 13 side protrudes from the fixed surface 21 in a state where a part of the bottom guide piece 16 exists, and therefore, as shown in FIG. In addition, the bottom guide piece 16 can be stably fixed to the lens 5.

  As shown in FIG. 4 (B), the fixing pins 32 and 32 protrude from the other end 31 of the fixing hole 29 in a state of being inserted into the fixing holes 29 and 29 from one end 30 thereof. Portion 33 is crushed. It does not matter whether the protruding portion 33 is heated and crushed or is not heated and is mechanically crushed using the deformability of plastic. By being crushed in this way, as shown in FIG. 5C, a retaining projection 36 that engages with the peripheral edge 35 of the other end 31 is formed. By this caulking, as shown in FIGS. 4C and 5A, the lens connector 1 is prevented from rotating and is securely fixed to the lens 5.

  Further, as shown in FIGS. 2 (A) and 6 (C), the engagement surface portion 37 as a rear surface portion (face portion on the face side) 37a facing the fixed surface portion 12 of the connector main body 6 An engagement hole 39 that can be engaged with the engagement protrusion 9 in a fitted state when the insertion piece 3 is fully inserted into the insertion hole 10 is provided. In the present embodiment, the engagement hole 39 is provided at a central portion in the length direction of the engagement surface portion 37.

  If the dimension of the main part of the lens coupling tool 1 which has this structure is illustrated, as shown to FIG. 3 (A) (B), the length L1 of the axial direction of the said coupling tool main body 6 will be 9 mm, and its width | variety L2 Is set to 3 mm, the thickness L3 is set to 1.8 mm, the length L4 of the insertion hole 10 is set to 7 mm, and the hole width L5 is set substantially equal to the width of the insertion piece 3. . Further, the diameter L6 of the engagement hole 39 is set to 2 mm, the protruding length L7 of the bottom guide piece 16 from the opening end 13 is set to 1.5 mm, and the side guide pieces 26 and 26 have the above-mentioned length L7. The protruding length L8 from the open end 13 is set to 0.9 mm. The diameter L9 of the fastening pin 32 is set to 1.25 mm, and the protruding length L10 of the fastening pin 32 is set to be relatively long so as to be able to cope with different lens thicknesses, for example, 2.6 mm. . The distance between the centers of the fastening pins 32, 32 is set to 6 mm.

  Therefore, the distal end portion 20 of the insertion piece 3 is, as shown in FIGS. 4 (C) and 6 (A), a guide groove portion 41 (see FIG. 4) formed by the bottom guide piece 16 and the side guide pieces 26 and 26. When inserted in 2), the distal end portion 20 is smoothly guided toward the opening end 13 of the insertion hole 10. When the insertion piece 3 is pushed toward the insertion hole 10 in such a guided state, the insertion surface 22 is formed in a series of flat surfaces having no steps. As shown in FIG. 5 (B), the lens 8 can be inserted into the insertion hole 10 without damaging the surface 8 (the rear surface 11 of the lens). With this insertion, the engaging surface portion 37 is pressed against the engaging protrusion 9 and elastically deforms. Finally, as shown in FIG. The lens 46 with a connector shown in FIG.

  As shown in FIG. 3B, the insertion hole 10 is configured as a blind hole with the bottom 17 closed and one end opened, and is not a through hole. If it is formed as a through hole, the tip of the insertion piece 3 may protrude from the end of the through hole, and it may be difficult to accurately determine the lens attachment position with respect to the lens connecting member 2. Since the insertion hole 10 is a blind hole, such a problem does not occur, and if the insertion piece 3 is fully inserted into the insertion hole 10 as shown in FIG. The mounting position of the lens 5 with respect to 2 can be accurately determined. In addition, it is possible to avoid the possibility that the protruding portion may damage the lens or injure the protruding portion.

  The lens connector 1 is preferably colored in the same color as the lens 5 so as to be inconspicuous when fixed to the lens 5. For example, it is colored brown or gray.

  FIGS. 7 to 9, FIG. 12, FIG. 18, and FIG. 23 show an example of eyeglasses 42 with interchangeable lenses (hereinafter referred to as eyeglasses) 42 configured using the lens connector 1 having such a configuration. Hereinafter, the first glasses 42a, the second glasses 42b, the third glasses 42c, and the fourth glasses 42d are distinguished.

[Configuration of first glasses]
The first spectacles 42a shown in FIGS. 7 to 9 are splash-up type front spectacles that are detachably attached to the main body spectacles 43, and are reversed in the horizontal direction as shown in FIGS. A lens coupling member 2 provided with protruding left and right insertion pieces 3 and 3, and a lens 46 with a coupling tool in which the lens coupling tool 1 is fixed to an edge portion 45 on the rear surface 11 of the auxiliary lens 5a. It is a thing. The auxiliary lens 5a is formed as, for example, a plastic light blocking polarizing lens.

  The lens connecting member 2 is made of metal in this embodiment, and as shown in FIGS. 7 and 10, a rotating shaft 49 is inserted through a pipe-like support shaft 47 extending in the horizontal direction, The rotating shaft 49 can rotate in the forward and reverse directions around its axis, and both end portions 50, 50 of the rotating shaft 49 protrude from both ends 48, 48 of the pipe-like support shaft 47. The portions are formed as insertion pieces 3 and 3 having a required width in the vertical direction and a rectangular plate shape that is long in the horizontal direction. As shown in FIG. 1, a spherical engagement protrusion 9 protrudes from the central portion of the inner surface (face on the face) 7 a of the insertion piece 3. In addition, at both end portions 51, 51 of the pipe-shaped support shaft 47, elastic curved engagement pieces 55, 55 provided along the inner edge portions of the left and right main body lenses 52, 52 of the main body glasses 43 are provided. Yes.

  When the lens 46 with a connector is constructed, first, as shown in FIG. 1, the two fastening pins 32, 32 are arranged on the edge portions 45, 45 on the auxiliary lenses 5a, 5a. The left and right fixing holes 29, 29 are provided so as to correspond to each other. And when fixing the said lens coupling tool 1 to the edge part 45 on the rear surface 11 of the said auxiliary lens 5a, as shown in FIG.4 (B), the hole center of the said insertion hole 10 is made into a horizontal state, The fastening pins 32, 32 are inserted into the fastening holes 29, 29 from one end 30 toward the other end 31. In the state where the fastening pins 32, 32 are inserted through the fastening holes 29, 29 as shown in FIG. 4 (B), the projection protruding at the other end 31 as shown in FIG. 5 (C). The parts 33 and 33 are crushed. The protruding portions 33 and 33 may be crushed by heating, or may be crushed without heating. By crushing in this manner, a retaining protrusion 36 that engages with the peripheral portion 35 of the other end 31 is formed. By such caulking, as shown in FIG. 6C and FIG. 11, a lens 46 with a connecting tool in which the lens connecting tool 1 is fixed to the edge portion 45 on the rear surface 11 of the auxiliary lens 5a is formed. .

  However, when attaching the pair of lenses 46, 46 having the above-described configuration to the left and right insertion pieces 3, 3 of the lens coupling member 2, the distal end portion 20 of the insertion piece 3 is shown in FIG. As shown, when inserted into a guide groove 41 (FIG. 2, FIG. 6A) formed by the bottom guide piece 16 and the side guide pieces 26, 26, the tip portion 20 opens the insertion hole 10. It will be smoothly guided toward the end 13. 6B, when the insertion piece 3 is pushed toward the insertion hole 10, the insertion surface 22 is formed in a series of flat surfaces without steps. Therefore, the insertion piece 3 is inserted into the insertion hole 10 without difficulty as shown in FIGS. With this insertion, the engaging surface portion 37 is pressed against the engaging protrusion 9 and elastically deforms, and finally the engaging protrusion 9 fits into the engaging hole 39. The fitted state is a state where the insertion piece 3 is fully inserted into the insertion hole 10 in FIG.

  By fitting in this way, it can be confirmed that the insertion piece 3 has been fully inserted into the insertion hole 10, and the engagement between the engagement protrusion 9 and the engagement hole 39 allows the insertion piece 3 is achieved, and the right-and-left auxiliary lenses 5a and 5a are attached to the lens connecting member 2 to form a splash-up type front spectacles 42a shown in FIG.

  FIG. 8 shows that the elastic curved engagement pieces 55 and 55 are engaged with the inner edge portions 54 of the left and right main body lenses 52 and 52 of the main body glasses 43, so that the repellent front spectacles 42 a are connected to the main body glasses. The state attached to 43 is shown. FIG. 8 shows a state in which the left and right auxiliary lenses 5a, 5a are rotated downward. This lowered state is stably held by an engaging action involving a spring action. In this state, the left and right auxiliary lenses 5a and 5a cover the left and right main body lenses 52 and 52 of the main body glasses 43 on the front side. For example, in the case of outdoor activities such as fishing, golf, winter sports, and driving, the sunglasses of the polarizing lens can be configured by lowering the auxiliary lenses 5a and 5a in this way. FIG. 9 shows a state in which the left and right auxiliary lenses 5a, 5a are repelled. This repelled state is stably held by an engaging action with a spring action. For example, when you are in a room that does not require sunglasses, or when you enter a tunnel while driving a car, you can see with the main body glasses 43 while seeing it, so It will be possible to ensure safety.

  Further, since the insertion piece 3 can be detachably inserted into the insertion hole 10, the lenses 46, 46 with the coupling tool can be detached from the lens coupling member 2. For this reason, the lens connecting member 2 is used as it is, and a lens 46 with a connecting tool using a lens having a different function is selected as needed and attached to the lens connecting member 2 to meet the purpose of use. Can be configured. For example, by preparing two types of lenses, a first lens with a coupler using a normal light-shielding lens of light color and a lens with a second coupler using a dark polarization-shielding lens, fishing or golf In outdoor activities such as winter sports and driving, you can enjoy wearing fashionable sunglasses by attaching the lens with the first connector to the lens connecting member 2 until you reach your destination. . Then, after arriving at the destination, the lens with the first connector is removed from the lens connector 2, and the lens with the second connector is attached to the lens connector 2 instead. Sunglasses can be constructed and worn to operate. In daily life, you can enjoy fashion by using different shades of light-colored light-shielding lenses. Also, if the lens is damaged, it can be easily replaced.

[Configuration of second glasses]
The second spectacles 42b shown in FIG. 12 relate to another embodiment of a splash-up type front spectacles that is detachably attached to the main body spectacles 43, and protrudes downward (in this embodiment, obliquely downward). The lens connecting member 2 is provided with left and right insertion pieces 3 and 3, and the lens connecting tool 1 is inserted into the edge portion 57 on the inner side (side closer to the nose) of the rear surface 11 of the auxiliary lens 5 a. The hole 10 is provided with a lens 46 with a connector that is fixed so that the hole center is in the vertical direction (in the present embodiment, in an oblique vertical direction). In the present embodiment, the auxiliary lens 5a is a single lens in which left and right auxiliary lens portions 5a1 and 5a1 are connected in series by a connecting portion 38, and is configured as a plastic polarizing lens, for example.

  The lens connecting member 2 is made of metal in this embodiment, and as shown in FIG. 13, a rotating shaft 49 is inserted into a pipe-shaped support shaft 47 extending in the horizontal direction, and the rotating shaft 49 can be rotated in the forward and reverse directions around its axis, and both end portions 50 and 50 of the rotating shaft 49 can protrude from both ends 48 and 48 of the pipe-like support shaft 47 and extend downward to be elastically deformed. The left and right arms 59, 59 are connected to the lower ends of the left and right arms 59, 59 and extend obliquely downward, and are formed as elongated rectangular plate-like insert pieces 3, 3. A spherical engaging projection 9 projects from the central portion of the inner surface (face on the face side) 7a of the insertion piece 3. Further, as shown in FIG. 12, elastic curved engagement pieces 55, 55 provided along the inner edge portions of the left and right main body lenses of the main body glasses are provided at both end portions 51, 51 of the pipe-shaped support shaft 47, respectively. Is provided.

  In constructing the lens 46 with the connecting tool, first, as shown in FIG. 14, the two fastening pins 32, 32 are formed on the inner edge portions 57, 57 of the auxiliary lens portions 5a1, 5a1. According to the arrangement, two upper and lower fastening holes 29 are formed. Then, when fixing the lens connector 1 to the inner edge portion 57 of the rear surface 11 of the auxiliary lens portion 5a1, as shown in FIG. The fastening pins 32, 32 are inserted into the fastening holes 29, 29 from one end 30 toward the other end 31. In a state where the fastening pins 32, 32 are inserted through the fastening holes 29, 29, the projecting portions 33, 33 projecting at the other end 31 are crushed as shown in FIG. The protruding portion may be crushed by heating, or may be crushed mechanically without heating. By crushing in this manner, a retaining protrusion 36 that engages with the peripheral portion 35 of the other end 31 is formed. By such caulking, as shown in FIG. 17, a lens 46 with a connector is formed in which the lens connector 1 is fixed to the inner edge portion 57 of the rear surface 11 of the auxiliary lens portions 5a1 and 5a1.

  However, when attaching the connector-equipped lens 46 having such a configuration to the left and right insert pieces 3 and 3 of the lens connecting member 2, the distal end portion 20 of the insert piece 3 is as shown in FIG. When inserted into the guide groove 41 (FIGS. 2 and 6) formed by the bottom guide piece 16 and the side guide pieces 26, 26, the tip portion 20 is guided toward the opening end 13 of the insertion hole 10. The Rukoto. 6B, when the insertion piece 3 is pushed toward the insertion hole 10, the insertion surface 22 is formed in a series of flat surfaces without steps. Therefore, as shown in FIGS. 6 (B), (C) and FIG. 17, the insertion piece 3 is smoothly guided by the guide groove 41 while being accompanied by the required elastic deformation of the arms 59, 59. It will be inserted into the insertion hole 10 without difficulty. With this insertion, the engaging surface portion 37 is pressed against the engaging protrusion 9 and elastically deforms, and finally the engaging protrusion 9 fits into the engaging hole 39. The state of fitting in this way is a state where the insertion piece 3 is fully inserted into the insertion hole 10 in FIG.

  By fitting in this way, it can be confirmed that the insertion piece 3 has been fully inserted into the insertion hole 10, and the engagement between the engagement protrusion 9 and the engagement hole 39 allows the insertion piece 3 is achieved, and the splash-up type front spectacles 42b shown in FIG. 12 in which the left and right auxiliary lenses 5a are attached to the lens connecting member 2 is configured.

  The front-type spectacles 42b having such a configuration is obtained by engaging the elastic bending engagement pieces 55 and 55 with the inner edge portions 54 of the left and right main body lenses 52 of the main body spectacles 43 in the same manner as shown in FIGS. Thus, a state in which the auxiliary lens 5a is attached to the main body glasses 43 and rotated downward and a state in which the auxiliary lens 5a is repelled can be obtained.

  Further, in the same manner as described above, a lens 46 with a coupler using a lens having a different function is selected as needed and attached to the lens coupling member 2, so that the same as described with respect to the first glasses 42 a. Thus, it is possible to configure glasses that match the purpose of use.

[Configuration of third glasses]
18 to 19 are, for example, repellent glasses formed as sunglasses, and when the repellent glasses 42c are pivoted downward and put down, the sunglasses are put on. In addition, in a state where the repellent glasses 42c are repelled, a state where the glasses are not put on (viewed with naked eyes) is obtained.

  More specifically, the repellent spectacles 42c will be described. The lens connecting member 2 is provided with left and right insertion pieces 3 and 3 protruding in the opposite direction in the horizontal direction, and the lens connecting tool 1 is light-shielding. And a lens 46 with a connecting member fixed to an edge portion 45 on the rear surface 11 of the lens 5.

  The lens connecting member 2 is made of metal in this embodiment, and as shown in FIGS. 18 and 20, a rotating shaft 49 is inserted into a pipe-like support shaft 47 extending in the horizontal direction. The pivot shaft 49 can pivot in the forward and reverse directions around the axis, both end portions 50, 50 of the pivot shaft 49 protrude from the pipe-shaped support shaft 47, and both tip side portions thereof are vertically movable. It is formed as insertion pieces 3 and 3 having a required width in the direction and a rectangular plate shape that is long in the left-right direction. A spherical engaging projection 9 is projected from the central portion of the inner surface (face on the face side) 7a of the insertion piece 3.

  Further, as shown in FIG. 19, the inner ends 61, 61 of the left and right upper chord portions 60, 60 are fixed to both sides of the central portion of the pipe-shaped support shaft 47 by brazing, as shown in FIG. Pad arms 63 and 63 having nose pad pads 62 and 62 at their lower ends are formed at the inner ends 61 and 61 in a bent manner. Further, as shown in FIG. 19, temple connecting pieces 66 and 66 are bent rearwardly at the outer ends 65 and 65 of the left and right upper chord portions 60 and 60, and the temple connecting pieces 66 and 66 are Temples 67 are attached to be openable and closable.

  As shown in FIGS. 20 to 21, the lens 46 with a connector is configured in the same manner as in the first glasses 42 a, and has an edge on the rear surface 11 of the lenses (for example, plastic ones) 5, 5. The lens connector 1 is fixed to the portion 45 by crushing and caulking the protruding portions 33, 33 of the fastening pins 32, 32 in the same manner as described above.

  Then, by pushing the insertion piece 3 into the insertion hole 10 so that the engagement protrusion 9 is fitted in the engagement hole 39, the left and right lenses 5, 5 are connected to the lens coupling member 2. The repellent type eyeglasses 42c shown in FIGS. 18 to 19 can be configured.

  FIG. 22 shows a state in which the left and right lenses 5 and 5 are rotated downward. This lowered state is stably held by an engaging action involving a spring action, and the sunglasses are configured in this state. Further, the left and right lenses 5 and 5 can be repelled as shown by a one-dot chain line in FIG. This repelled state is stably held by an engaging action with a spring action. For example, when you are in a room that does not require sunglasses, or when you enter a tunnel while driving a car, you can see with the naked eye by repelling in this way, and you can ensure safety of driving etc. .

  Further, since the insertion piece 3 can be detachably inserted into the insertion hole 10, the lenses 46, 46 with the coupling tool can be detached from the lens coupling member 2. For this reason, the lens 46 with a coupler using a lens having a different function is selected as needed and attached to the lens coupling member 2 to meet the purpose of use in the same manner as described for the first glasses 42a. It will be possible to configure the glasses.

[Configuration of 4th glasses]
The fourth eyeglasses 42d shown in FIG. 23 is, for example, according to another embodiment of the splash-up type eyeglasses formed as ordinary sunglasses, and protrudes downward (in this embodiment, protrudes obliquely downward). The lens connecting member 2 provided with the left and right insertion pieces 3 and 3, and the edge portions 57 and 57 inside the rear surfaces 11 and 11 of the light-shielding lenses 5 and 5 (sides close to the nose). Further, the insertion hole 10 is provided with a lens 46 with a connecting member which is fixed so that the center of the hole is in an up-and-down direction (in the present embodiment, in an inclined up-and-down direction). In the embodiment, as shown in FIG. 23, the lens 5 is a single lens in which left and right lens portions 5a2 and 5a2 are integrally connected by a connecting portion 58. For example, the lens 5 is configured as a light shielding lens made of plastic or the like. ing.

  The lens connecting member 2 is made of metal in this embodiment, and as shown in FIG. 24, a rotating shaft 49 is inserted into a pipe-like support shaft 47 extending in the horizontal direction, and the rotating shaft 49 can be rotated in the forward and reverse directions around its axis, and both end portions 50 and 50 of the rotating shaft 49 can protrude from both ends 48 and 48 of the pipe-like support shaft 47 and extend downward to be elastically deformed. The left and right arms 59, 59 are connected to the lower ends of the left and right arms 59, 59 and extend obliquely downward, and are formed as elongated rectangular plate-like insert pieces 3, 3. A spherical engaging projection 9 projects from the central portion of the inner surface (face on the face side) 7a of the insertion piece 3. Further, inner ends 61, 61 of left and right upper chord portions 60, 60 are fixed to both end portions 51, 51 of the pipe-shaped support shaft 47 by brazing, and the inner ends 61, 61 are attached to the inner ends 61, 61 in FIG. In the same manner as shown, pad arms 63 and 63 having nose pad pads 62 and 62 at the lower end are bent and formed in series. In the same manner as shown in FIG. 19, temple connecting pieces 66, 66 are formed in the outer ends 65, 65 of the left and right upper chords 60, 60 so as to bend in the rearward direction. In addition, temples 67 are attached to be openable and closable.

  The connector-equipped lens 46 is configured in the same manner as in the second spectacles 42b. As shown in FIG. 25, the light-shielding lenses (for example, plastic ones) 5 and 5 are arranged on the inner side of the rear surface 11. The lens connector 1 is fixed to the edge portion 57 by crushing and crimping the protruding portions of the fastening pins 32 and 32.

  Then, as shown in FIG. 25, the insertion piece 3 is pushed into the insertion hole 10, and the engagement protrusion 9 is fitted in the engagement hole 39. The repellent glasses 42d shown in FIG. 23 in which the lenses 5 and 5 are attached to the lens connecting member 2 can be configured.

  In the same manner as shown in FIG. 22, the flip-up type eyeglasses 42d having such a configuration constitutes sunglasses in a state of being rotated downward and lowered. And by being repelled, it can be seen with the naked eye.

  Further, in the same manner as described above, a lens 46 with a coupler using a lens having a different function is selected as needed and attached to the lens coupling member 2, so that the same as described with respect to the first glasses 42 a. Thus, it is possible to configure glasses that match the purpose of use.

  26 to 27 show an embodiment of the lens forming substrate 69 according to the present invention. The lens connector 1 is fixed to a plastic lens forming plate 70 that can form a lens of a required form by cutting. It has been made.

  The lens forming plate 70 is formed, for example, in the shape of a rectangular plate provided with a lens curve, and one side edge portion of the rear surface (the portion that becomes the upper edge portion of the rear surface of the lens formed by cutting). 71, the lens connector 1 is fixed with the hole center of the insertion hole 10 (FIG. 27) along the one side edge portion 71.

  As shown in FIGS. 27 to 28, the fixing is performed in the two fastening pins 32, 32 in the two fastening holes 29, 29 penetrating the side edge portion 71 at a required interval. Is inserted into the fixing holes 29, 29 from one end 30 toward the other end 31 thereof. In a state where the fastening pins 32, 32 are inserted into the fastening holes 29, 29, the protruding portion protruding at the other end 31 is crushed. The protruding portion may be crushed by heating, or may be crushed without heating. By crushing in this manner, a retaining protrusion 72 that engages with the peripheral portion 35 of the other end 31 is formed. Such caulking constitutes a lens forming substrate 69 shown in FIG.

  Therefore, when forming the lens 46 with the coupling tool to which the lens coupling tool 1 is fixed using the lens forming substrate 69 having such a configuration, first, as shown in FIGS. In a state where the insertion piece 3 of the member 2 is inserted into the insertion hole 10 of the lens connector 1 and the engagement protrusion 9 and the engagement hole 39 are fitted and engaged, the lens forming plate For example, as shown by a one-dot chain line in FIG. 26, a required lens outline 75 is attached to the surface 73 of 70 so that a desired lens form can be cut. This lens outline 75 is set as required in consideration of the relationship with the shape of the main body lens 52 of the main body glasses 43.

  After attaching the lens outline 75 in this way, the lens forming substrate 69 is removed from the lens connecting member 2, and in this state, cut with a scissors or the like along the lens outline 75. polish. For example, the lens 46 with a connector having a required shape is formed by cutting into a desired lens shape such as an oval shape with a part missing as shown in FIG. 29, a heart shape or a diamond shape. Such a cutting operation can be performed with the lens forming plate 70 separated from the lens connecting member 2, so that the cutting operation can be performed easily and accurately. If the lens forming plate 70 is fastened to the lens connecting member 2 in a rivet shape as in the prior art, the cutting process must be performed with the lens forming plate 70 fixed to the lens connecting member 2. In this case, there is a limitation in the cutting process, and there arises a problem that it is difficult to cut easily and accurately.

  FIG. 30 shows a state in which the lens 46 with a coupler formed in this way is coupled to the lens coupling member 2, and individual glasses can be configured.

  For example, when forming the connector-equipped lens 46 constituting the third spectacles 42c and the connector-equipped lens 46 constituting the fourth spectacles 42d, the lens forming substrate 69 is used as the lens connecting member. The lens outline 75 is set as required in consideration of the positional relationship with the eyes, the size of the face, and the like while being fixed to the second insertion piece 3. A lens having a desired shape can be formed by cutting along the lens outline 75 set in this way, and by fixing the lens 46 with a connector having such a lens to the lens connecting member 2, individual lenses can be formed. Glasses can be configured.

  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) FIG. 31 shows another embodiment of the lens connector 1. The difference from the lens connector 1 in the embodiment is that the side guide pieces 26, 26 are omitted. is there.
Even in the case of the lens connector 1 having such a configuration, the bottom guide piece 16 is provided. Therefore, when the insertion piece 3 is inserted into the insertion hole 10, the distal end portion 20 of the insertion piece 3 is moved to the bottom guide piece 16. The tip portion 20 can be guided toward the insertion hole 10 by sliding toward the opening end 13 while being placed on the surface (insertion surface 22).

(2) The engaging protrusion 9 provided on the insertion piece 3 preferably has a spherical shape as described above. However, the engaging protrusion 9 is engaged with an engaging recess or an engaging hole provided in the connector main body 6. As long as they can be combined, for example, those having a truncated cone shape may be used, and those having a spherical shape are not specified.

(3) FIGS. 32 and 33 show another embodiment of the lens connector 1 according to the present invention, and an engagement surface portion (face side surface) as the rear surface portion (face portion on the face side) 37a. 37 is not provided with the engagement hole 39. Accordingly, the engagement protrusion 9 is not provided on the insertion piece 3 of the lens connecting member 2. In the lens connector 1 according to FIG. 32, side guide pieces 26 and 26 are provided. However, in the lens connector 1 according to FIG. 33, the side guide pieces 26 and 26 are omitted. Only the bottom guide piece 16 is provided.
FIG. 34 shows another embodiment of the lens connector 1, and an engagement recess 78 or an engagement hole is provided on an insertion hole inner surface 77 such as both side surface portions 76, 76 of the insertion hole 10 ( In FIG. 34, an engagement recess 78 is provided), and an engagement protrusion 79 provided on the insertion piece 3 is engaged with the engagement recess 78. Alternatively, as shown in FIG. 35, the engagement protrusions 80 provided on the inner surface 77 of the insertion hole such as the both side surface portions 76, 76 of the insertion hole 10 are connected to the engagement recess 81 provided on the insertion piece 3 or the engagement. You may comprise so that it may engage with a joint hole.

(4) FIG. 36 shows another embodiment of the lens connector 1, which extends to the engaging surface portion 37 of the connector body 6 from the opening end 13 toward the bottom 17 side. A split groove 83 is provided, and an engaging recess 86 is provided, for example, at a central portion in the length direction of the groove side surfaces 85, 85 facing the engaging split groove 83. In addition to being provided on both groove side surfaces 85, 85, the engaging recess 86 may be provided only on one groove side surface.
The insertion piece 3 is provided with an engaging protrusion 87 that fits into the engaging split groove 83, and the engaging recess 86, An engaging protrusion 90 is provided that can be engaged with the engaging member 86 in a state of being engaged with the engaging member 86.
However, when the insertion piece 3 having such a configuration is inserted into the insertion hole 10, the insertion protrusion 87 is inserted into the engagement split groove 83. The insertion piece 3 is inserted into the insertion hole 10 by visually observing that the tip 81 of the engagement protrusion 87 abuts against the groove tip 92 of the engagement split groove 83 by being inserted in this manner. Can be confirmed. Then, the engagement protrusion 90 is engaged with the engagement recess 86 in a state of corresponding contact.

(5) In the embodiment, the two fastening pins 32, 32 projecting from the fixing surface 21 of the connector body 6 are inserted into the fastening holes 29, 29 provided in the lens 5. Thus, the protrusions 33, 33 are crushed to form the retaining protrusions 36, 36. For example, as shown in FIGS. Although the locking projection 36 is formed, the other locking pin 32b may be configured to be simply inserted into the locking hole 29 so as to exhibit the function of preventing the lens connector 1 from rotating. . In this case, it is preferable to set the length of the distal end 93 of the locking pin 32 b for preventing rotation so as not to protrude from the surface of the lens 5. In addition, it is preferable that the one fixing pin 32a protrudes from the bottom guide piece 16 because the stability of fixing the bottom guide piece 16 can be improved.
FIG. 39 shows a case where the number of fastening pins 32 projecting from the fixed surface 21 is one, and the fastening pins 32 are inserted into the fastening holes 29 in the same manner as described above. The projecting portion is crushed to form a retaining projection 36. As shown in FIG. 39 (B), the fixing pin 32 is formed in a non-circular shape such as a square shape, a rectangular shape, or an elliptical shape, and a fixing hole 29 provided in the lens 5 is provided on the fixing pin 32. The pins 32 are provided so as to match the cross-sectional shape of the pins 32. Therefore, the fastening pin 32 is closely inserted into the fastening hole 29, so that the fastening pin 32 and the fastening hole 29 can be reliably prevented from rotating.

(6) In the present invention, projecting the fastening pin 32 with the bottom guide piece 16 means that the bottom guide piece 16 is partly projecting as described above, as shown in FIG. As shown in FIG. 4, the bottom guide piece 16 is provided so as to protrude entirely.

(7) The cross-sectional shape of the insertion hole 10 can be set to various shapes such as a circular shape, a hexagonal shape, a rectangular shape, a square shape, and an elliptical shape, and the cross-sectional shape of the insertion piece 3 is set according to this cross-sectional shape. Is done.

(8) The lens connector 1 according to the present invention is fixed to the rear surface (lens surface on the face side) of the lens in the above embodiment, but may be fixed to the front surface of the lens.

(9) FIGS. 41 and 42 show a case where the front side portion of the insertion hole 10 is formed as a front pore portion 95, and accordingly, the front side portion of the insertion piece 3 is a tapered piece 96. It is formed as. When the taper 96 is configured as described above, for example, as shown in FIG. 41 (A), by inserting the front end 97 of the taper 96 into the insertion hole 10 and inserting the insert 3. The insertion piece 3 can be easily and accurately inserted into the insertion hole 10. Then, as shown in FIG. 41 (B), when the tapered piece 96 is press-fitted into the tapered portion 95, the inserted piece 3 can be stably connected to the lens connector 1.

(10) The connector main body 6 is not specified to be in the shape of a rectangular parallelepiped box as described above, and has a cross section other than a rectangle as long as it has a surface portion for projecting the fastening pin 32. It may be configured to exhibit a shape.

(11) The fixing surface 21 of the connector body 6 with respect to the lens 5 is formed in a curved surface that can surely come into surface contact with the surface 8 (the rear surface 11 or the front surface 22) of the lens 5, as shown in FIG. Sometimes.

(12) The lens connecting member 2 may be made of plastic or the like as long as the lens connecting member 2 is made of metal and can form glasses by connecting left and right lenses.

(13) When the eyeglasses 42 are configured using the lens connecting member 2 provided with the left and right insertion pieces 3 and 3 projecting downward, the lens connecting tool 1 is perpendicular to the inner edge portion 57 of the lens 5. It may be fixed in a vertical direction close to the direction.

(14) When the left and right lenses 5 and 5 are independent, the lens connector 1 may be fixed to the inner edge portion 57 of the lens 5 as shown in FIG.

(15) As the lens 5 constituting the repellent spectacles, a polarizing lens or a correction lens can be used.

(16) The glasses configured by inserting the insertion piece 3 into the insertion hole 10 may be configured not to be lifted up.

DESCRIPTION OF SYMBOLS 1 Lens coupling tool 2 Lens coupling member 3 Insertion piece 5 Lens 6 Connecting tool main body 8 Lens surface 9 Engaging protrusion 10 Insertion hole 11 Lens rear surface 12 Fixed surface portion 13 Open end 16 Bottom portion guide piece 21 Fixed surface 22 Insertion surface 26 Side guide piece 27 Guide surface 29 Fastening hole 30 One end 31 Lower end 32 Fastening pin 33 Projection part 36 Retaining protrusion 37 Engagement surface part 39 Engagement hole 42 Glasses 43 Main body spectacles 45 Upper edge part 46 Lens with connector 52 Main lens 57 Inner edge portion 60 Upper chord portion 69 Lens forming base material 70 Lens forming plate 75 Lens contour line 83 Engagement groove 87 Engagement protrusion

Claims (13)

A lens coupling tool for spectacles connected to an insertion piece of a lens coupling member, the whole being made of plastic, comprising a coupling body fixed to the surface of the lens, the coupling body having the insertion piece An insertion hole as a blind hole with a closed bottom that is detachably inserted is provided, and a bottom guide piece that guides the insertion piece toward the opening end at the lens side edge of the opening end of the insertion hole Is protruding,
A fixing pin that protrudes from one end to the other end of a fixing hole penetrating the lens is projected from a fixed surface portion fixed to the surface of the lens of the connector main body. In the state where the fastening pin is inserted into the fastening hole, the protruding portion protruding at the other end is crushed to form a retaining protrusion that engages with the peripheral portion of the other end. A lens connector for spectacles, characterized in that it is made of   2. The lens connector for spectacles according to claim 1, wherein side guide pieces project from both side edges of the opening end.   Side guide pieces are provided on both side edges of the opening end so as to protrude on the bottom guide piece, and opposing inner surfaces of the side guide pieces are inclined outwardly from the opening end toward the opening end. The lens coupling tool for spectacles according to claim 1, wherein a guide surface is provided, and an interval between the guide surfaces is enlarged toward the opening end side.   An engagement recess or an engagement hole is provided on the inner surface of the insertion hole, while an engagement protrusion that can be engaged with the engagement recess or the engagement hole is provided on the insertion piece. 2. The lens coupling tool for spectacles according to claim 1, wherein the engaging protrusion and the engaging recess can be engaged in a fitted state.   2. The lens coupling tool for spectacles according to claim 1, wherein the fastening pin projects from the bottom guide piece.   2. The lens coupling tool for spectacles according to claim 1, wherein a fixing surface of the fixing surface portion with respect to the lens is formed as a curved surface capable of contacting the surface of the lens.   There is one fastening pin protruding from the fixed surface portion, the fastening pin has a non-circular cross section, and the fastening pin is provided on the lens. The lens connector for spectacles according to claim 1, characterized in that it can be inserted into a non-circular fastening hole that matches the cross-sectional shape of the wearing pin. A lens coupling member provided with left and right insertion pieces projecting in opposite directions in the horizontal direction, and a lens with a coupling tool, wherein the lens coupling tool for spectacles according to any one of claims 1 to 7 is fixed to the lens The lens connector for spectacles is fixed to the upper edge of the lens surface with the insertion hole in a horizontal state and the insertion piece is detachable from the insertion hole. Inserted in the
A fastening pin projecting from the fixed surface portion is inserted into a fastening hole penetrating the upper edge portion from one end to the other end, and the projecting portion projecting from the other end is crushed. The lens-replaceable glasses are characterized in that a retaining protrusion is formed to engage with the peripheral edge of the other end. A lens coupling member provided with left and right insertion pieces projecting downward; and a lens with a coupling device in which the lens coupling device for spectacles according to claim 1 is fixed to the lens, In the lens connector for spectacles, the insertion hole is fixed to the inner edge (side closer to the nose) of the lens surface with the hole center in the vertical direction, and the insertion piece is inserted into the insertion hole. It is inserted detachably,
A fastening pin projecting from the fixed surface portion is inserted from one end to the other end of a fastening hole penetrating the edge portion on the inner side (side closer to the nose) and protrudes from the other end. A lens-replaceable spectacle, wherein a protruding protrusion is crushed to form a retaining protrusion that engages with the peripheral edge of the other end.   A lens forming base material, wherein the lens connector for spectacles according to any one of claims 1 to 7 is fixed to a plastic lens forming plate capable of forming a lens of a required form by cutting. A lens coupling member for flip-up glasses,
The lens connecting member includes a pipe-shaped support shaft and a rotation shaft inserted through the pipe-shaped support shaft.
The rotating shaft is provided with insertion pieces that can be inserted into the insertion holes of the spectacle lens connector according to claim 1 at both ends, and the lens connecting member is detachable from the spectacle lens connector. A lens connecting member of a flip-up type spectacle. 12. The flip-up type spectacles according to claim 11, wherein both ends of the pipe-shaped support shaft are provided with elastic curved engagement pieces provided along the inner edge portions of the left and right main body lenses. Lens connecting member. In the lens connecting member of the flip-up type spectacles according to claim 11,
The inner ends of the upper chords are fixed to both sides of the central part of the pipe-shaped support shaft,
A pad arm having a nose pad at the lower end is bent from the inner end of the upper chord part, and a temple connecting piece is bent backward at the outer end of the upper chord part. A flip-up type spectacle frame characterized in that can be opened and closed.

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