Glasses

Eyeglasses with upward convex end pieces and zygomatic arch contact protrusions provide a secure, comfortable fit and prevent slipping, addressing fit and appearance issues of conventional designs.

JP7759033B2Active Publication Date: 2025-10-23RAIN IND
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Patent Information

Application Number
JP2021100457
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-06-16
Publication Date
2025-10-23
Estimated Expiration
2041-06-16

AI Technical Summary

Technical Problem

Conventional eyeglasses with temple pads for supporting the front portion cause discomfort, pain, slipping, and poor appearance due to inadequate fit and temple pad design.

Method used

Eyeglasses with end pieces bent in an upward convex shape and inward protrusions on the temples that contact the zygomatic arch, providing secure fit and support without nose pads, adjustable to fit various head shapes.

Benefits of technology

The eyeglasses offer a comfortable, secure fit that prevents slipping and maintains lens alignment, even during exercise, with a good appearance due to hidden protrusions.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a pair of spectacles that gives superior wearing feeling and fitting feeling, neither let a wearer feel pain nor have a front part shifted in a position even when the wearer wears the spectacles for a long time or exercises, and has excellent outward appearance when the wearer wears the spectacles.SOLUTION: A frame 1 of spectacles G is characterized in that: respective ear bend parts 4a, 4b are bent upward convexly to abut on parts from rear sides to front sides of roots of helices of a wearer; connection parts of the respective ear bend parts 4a, 4b and respective temple parts 3a, 3b are bent downward convexly to arrange the respective temple parts 3a, 3b along upper edges of zygomatic arches of the wearer. In addition, press projections 13 for pressing upper parts nearby rear ends of the zygomatic arches of the wearer are provided on base end sides of the respective ear bend parts 4a, 4b, respectively.SELECTED DRAWING: Figure 2
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Description

[Technical Field]

[0001] The present invention relates to eyeglasses that are used not only for correcting eyesight and blocking sunlight, but also as a fashion item. [Background technology]

[0002] Typical eyeglasses have a front section (also known as the thigh section) for holding a pair of lenses, temple sections extending from both ends of the front section, and end pieces that are continuous with the temple sections. To prevent the front section from slipping off when worn, nose pads (or nose bridges) are provided in the center of the front section to rest against the base of the nose. However, eyeglasses with nose pads like these can cause discomfort to the wearer when worn for long periods of time, as the weight of the front section continues to be applied to the base of the nose. Furthermore, when the glasses are removed, the nose pads can leave marks at the base of the nose, creating a cosmetic problem.

[0003] In view of such problems, eyeglasses have been developed that do not have nose pads on the front part, but have protruding temple pads on the inside of the temple part that come into contact with the wearer's temples, and are configured so that the weight of the front part is supported by these temple pads (Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2020-95243 Summary of the Invention [Problem to be solved by the invention]

[0005] However, because the temples are an area where muscles move significantly when the wearer opens their mouth, eyeglasses like those in Patent Document 1, which support the weight of the front portion with temple pads that abut against the temples, are not particularly comfortable to wear. Furthermore, the glasses tend to slip off whenever the wearer repeatedly opens their mouth. Furthermore, eyeglasses like those in Patent Document 1 can cause pain to the wearer, depending on the degree to which the temple pads protrude inward or their characteristics (e.g., elasticity), or, conversely, can cause the glasses to slip off due to insufficient wearing strength. Additionally, eyeglasses like those in Patent Document 1 require large temple pads to stably support the weight of the front portion with the temple pads, but such large temple pads result in a poor appearance when worn.

[0006] The object of the present invention is to solve the problems of conventional eyeglasses such as those of Patent Document 1, and to provide practical eyeglasses that, despite not having nose pads, are comfortable to wear and have a good fit, do not cause pain to the wearer, are highly securely attached to the head (are less likely to slip off), do not cause the front part to shift position even when worn for long periods of time or when the wearer exercises, and have a good appearance when worn. [Means for solving the problem]

[0007] The invention described in claim 1 of the present invention is a pair of eyeglasses having a lens holding part for holding a pair of left and right lenses, temple parts extending rearward from both the left and right ends of the lens holding part, and end pieces provided at the ends of the temple parts, wherein each end piece is bent in an upward convex shape so as to abut against the part from the rear to the front of the base of the wearer's earlobe, and the connecting part between each end piece and each temple part is bent in a downward convex shape (i.e., the base end (front end) of each end piece is bent upward with respect to the linear part of each temple part) in order to position each temple part along the upper edge of the wearer's zygomatic arch, and At the base end (the edge in front of the upwardly convex bent part) on the downward slopeA pressing protrusion for pressing the upper part of the rear end of the wearer's zygomatic arch (i.e., the front of the upper side of the tragus) is provided. The pressing protrusions are formed so that the base end portions of the left and right end pieces bulge inward by a predetermined length relative to the core body at the tip of the temple piece, more than the other portions; and Abutment portions are formed on the inside of each temple portion to abut against the outside of the front end of the wearer's zygomatic arch, and the amount of inward protrusion of these abutment portions is adjustable. It is characterized by:

[0008] The bending shape (downward convex bending shape) at the connection between each end piece and each temple varies depending on the shape and size of the wearer's head, but it is preferable to adjust the height difference between the bending point (center of bending) and the highest point of each end piece (i.e., the vertical difference between the inflection points) so that it is 15 mm or more and 40 mm or less. Bending the connection between each end piece and each temple in this way allows each temple to be positioned more accurately along the upper edge of the wearer's zygomatic arch. It is more preferable to adjust the height difference between the bending point at the connection between each end piece and each temple and the highest point of each end piece so that it is 20 mm or more and 30 mm or less.

[0009] Claim 3 The invention described in claim 1 is characterized in that, in the invention described in claim 1, the pressing protrusion is an approximately semi-cylindrical body that protrudes inward along the longitudinal direction of each of the end pieces.

[0010] Claim 2 The invention described in claim 1 is as follows: The abutment portion is fixed to the inside of the temple portion using a bolt and a nut, and the amount of inward protrusion can be adjusted by adjusting the degree of screwing of the bolt and the nut. It is characterized by: [Effects of the Invention]

[0011] The eyeglasses described in claim 1 have each end piece that is convex upward so as to contact the portion from the rear to the front of the base of the wearer's ear helix, and each end piece has a pressing protrusion at its base that presses against the upper portion near the rear end of the wearer's zygomatic arch. Therefore, even though the eyeglasses do not have nose pads, they provide a very good fit, are comfortable to wear even when the wearer repeatedly opens their eyes, and are unlikely to slip off. Furthermore, even when worn for long periods of time or during exercise, the eyeglasses do not cause pain to the wearer or cause the front piece to shift position.

[0012] Furthermore, in the eyeglasses described in claim 1, the connection portions between the end pieces and the temples are bent in a downward convex shape, and when worn, the temples are positioned along the upper edge of the wearer's zygomatic arch, so that by providing protrusions on the inner surface of each temple so that they protrude horizontally inward (i.e., so that they protrude inward within a horizontal plane including the left and right temples) and by configuring the tips of these protrusions to press against the upper edge of the wearer's zygomatic arch, the fit can be easily improved. Moreover, by providing protrusions on the inner surface of each temple so that they protrude inward and press against the upper edge of the wearer's zygomatic arch, these protrusions are less likely to deform, making it possible to maintain a high fit over a long period of time without maintenance. Furthermore, when the eyeglasses described in claim 1 are worn, the contact portion is in contact with the outer side of the front end of the wearer's zygomatic arch, so that the eyeglasses have excellent function of holding the left and right lenses, and can hold the left and right lenses at the correct eyepoint (usually a position where the inner surface of the lens is 12 mm from the surface of the eyeball) without misalignment.

[0013] Claim 3 The eyeglasses described in the above have pressure projections that are roughly semi-cylindrical and protrude inward along the longitudinal direction of each end piece, and press against the upper part of the rear end of the wearer's zygomatic arch over a wide area, so that the base end (front end) of each end piece that is engaged around the base of the wearer's ear helix is ​​positioned with high binding force, resulting in an extremely high fit and making the eyeglasses very difficult to slip off. Despite this, the pressure projections are not visible from the outside, resulting in an excellent design. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 2 is an explanatory diagram (front view) showing eyeglasses. [Figure 2] FIG. 2 is an explanatory diagram (rear view) showing the glasses. [Figure 3] FIG. 2 is an explanatory diagram (plan view) showing glasses. [Figure 4] FIG. 2 is an explanatory diagram (right side view) showing the glasses. [Figure 5] 10A and 10B are explanatory views showing the installation positions of the connecting members of the temple portions (FIG. 10A is a plan view, and FIG. 10B is a right side view). [Figure 6] FIG. 1 is an explanatory diagram (side view) showing an overview of the bone structure of the head. [Figure 7] 1A and 1B are explanatory views (vertical cross-sectional views) showing a pressing protrusion (a is an end view taken along line AA in FIG. 1, and b is an end view taken along line BB in FIG. 1). [Figure 8] 1A to 1C are explanatory views showing the contact portion (a is a front view, b is a plan view, and c is a right side view). [Figure 9] FIG. 1 is an explanatory diagram (plan view) showing a state in which a wearer wears the eyeglasses. [Figure 10] FIG. 2 is an explanatory diagram (right side view) showing a state in which a wearer is wearing the eyeglasses. [Figure 11] 10A and 10B are explanatory diagrams showing a modified example of eyeglasses (FIG. 10A is a plan view of the contact portion installation area, and FIG. 10B is a side view of the contact portion installation area viewed from the inside of the temple portion). [Figure 12] 1A and 1B are explanatory diagrams showing modified examples of the contact portion (a is a side view of the contact portion installation area seen from the inside (side view seen from the direction of arrow C in FIG. 1), and b is a plan view of the contact portion installation area). [Figure 13] FIG. 10 is an explanatory diagram (right side view of the end cap) showing a modified example of the eyeglasses. DETAILED DESCRIPTION OF THE INVENTION

[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of eyeglasses according to the present invention will be described in detail below with reference to the accompanying drawings. <Glasses structure> 1 to 4 respectively show the front, back, top, and right side of the eyeglasses, and the eyeglasses G are composed of a pair of left and right lenses L1, L2 and a frame 1 for holding them. The frame 1 is composed of a lens holder 2 for holding the lenses L1, L2, temples 3a, 3b extending rearward from both left and right ends of the lens holder 2, and end pieces 4a, 4b connected to the rear ends of the temples 3a, 3b.

[0017] The lens holder 2 functions as a so-called thigh and is made of metal (titanium). It is composed of a connecting arm 5, holding frames 6a and 6b which are rims for holding the left and right lenses L1 and L2, end pieces 7a and 7b for connecting the left and right temple pieces 3a and 3b, and hinges 8 and 8 for holding the left and right temple pieces 3a and 3b in a foldable manner.

[0018] The connecting arm 5 is formed in a curved rod shape with a central portion bulging forward. The holding frames 6a and 6b are formed in a generally rectangular shape to fit the outer edges (top, bottom, left, and right edges) of the lenses L1 and L2, and are fixed to the left and right sides of the connecting arm 5. The lenses L1 and L2 are held by the holding frames 6a and 6b. Furthermore, approximately V-shaped end pieces 7a and 7b are connected to the outside of the holding frames 6a and 6b, with their tips protruding rearward. Hinges 8 and 8 are fixed to the inside of the end pieces 7a and 7b.

[0019] Meanwhile, the left and right temples 3a, 3b are both made of metal (titanium) and are generally linear, and are provided with a length adjustment mechanism for adjusting the front-to-rear length. That is, the right temple 3b has a vertically wide, band-shaped front member 31b, to the rear end of which a band-shaped connecting member 33b slightly wider than the front member 31b is fixed, and a vertically narrow, generally rod-shaped rear member 32b is connected by the connecting member 33b so as to be slidable forward and backward.

[0020] 5 shows the installation portion of the left connecting member 33b. The connecting member 33b has an insertion hole 34 drilled along the longitudinal direction at its rear end, and a screw hole 35 drilled in its underside that leads to the insertion hole 34, with a retaining bolt 36 screwed into the screw hole 35. In the right temple portion 3b, the front edge of the rear member 32b can be fixed to the connecting member 33b by inserting the front edge of the rear member 32b into the insertion hole 34 of the connecting member 33b by a desired length and then screwing the retaining bolt 36 from the underside of the connecting member 33b to hold down the front edge of the rear member 32b. The left temple portion 3a is also provided with a length adjustment mechanism similar to that of the right temple portion 3b, symmetrically.

[0021] Furthermore, hinge pieces 9, 9 are fixed to the inside of the front end of the front member 32b of each temple portion 3a, 3b for rotatably connecting with the hinges 8, 8 provided on the left and right end pieces 7a, 7b of the lens holding portion 2. In addition, the rear end portions of the rear members 32a, 32b of each temple portion 3a, 3b are bent upward to form the core bodies 11 of the end pieces 4a, 4b.

[0022] Meanwhile, the left and right end pieces 4a, 4b are formed by coating the outside of the core 11, which extends integrally from the rear ends of the left and right temples 3a, 3b, with synthetic resin (polyamide resin), and are curved in an upwardly convex arc shape in side view (see FIG. 4). The base ends of the left and right end pieces 4a, 4b (i.e., the connection portions with the temples 3a, 3b) are each curved downwardly in a convex shape forming an angle of approximately 150° (bending point P). On the left and right sides of the eyeglasses G, the height difference D between each bending point P at the connection portion between the end piece 4a (4b) and the temples 3a (3b) and the top position S of the end piece 4a (4b) is approximately 25 mm.

[0023] Figure 6 is a schematic diagram of the structure of the human skull, in which the zygomatic arch C is an arch-shaped bone (bony portion) extending laterally and consisting of the temporal process of the zygomatic bone A and the zygomatic process of the temporal bone B, and is located near the lower end of the temporal bone B. The left and right temple portions 3a and 3b of the eyeglasses G are intended to be positioned along the upper edge of the zygomatic arch C, as shown by the dashed line in Figure 6.

[0024] As described above, the left and right temple sections 4a, 4b are bent in a large upward convex shape, so that when worn, they fit around the base of the wearer's earlobe (i.e., the roughly arc-shaped section extending from the rear part of the earlobe (slightly recessed part) through the top of the earlobe to the front part of the earlobe (the upper part near the rear end of the zygomatic arch C)).

[0025] The base end portions of the right and left end pieces 4a, 4b are formed with semi-cylindrical pressure protrusions 13 for pressing the upper part of the rear end of the wearer's zygomatic arch at the front end, respectively. Fig. 7(a) shows a vertical cross section (vertical cross section perpendicular to the longitudinal direction) of the part of the right end piece 4b where the pressure protrusion 13 is installed, and Fig. 7(b) shows a vertical cross section of the part of the end piece 4b other than the part where the pressure protrusion 13 is installed. The base end portions of the right and left end pieces 4a, 4b are each spaced apart from the core body 11 at the tip of the temples 3a, 3b by a predetermined length ( Figure 7 In order to fit the shape of the back of the head of the wearer, the left and right end portions 4a, 4b are slightly curved inward from the front end (base end) to the rear end in a plan view.

[0026] 3, contact portions 14a, 14b are fixed to the inside of the connecting members 33a, 33b of the left and right temple portions 3a, 3b, respectively, for contacting the outside of the front end of the wearer's zygomatic arch C (portion α in FIG. 6). These contact portions 14a, 14b function to position the surfaces of the lenses L1, L2 at an appropriate eyepoint with respect to the position of the eyeball when worn (usually a position where the inner surface of the lens is 12 mm from the surface of the eyeball), and to support the weight of the lenses L1, L2 at a position as close to the eyeball as possible.

[0027] Figure 8 shows the right-side contact portion 14b, which is integrally formed from translucent, flexible (elastic) silicone rubber in a rectangular parallelepiped shape (front-to-back length x left-to-right width x height = 15.0 mm x 5.0 mm x 5.0 mm) with rounded corners. A metal nut 16 with a threaded groove is fixed to the front of a main body 15 of the contact portion 14b with its axial direction perpendicular to the inner surface of the main body 15. A cylindrical engagement hole 17 with a larger diameter at its tip is drilled perpendicular to the inner surface of the main body 15 at the rear of the main body 15. Meanwhile, as shown in Figure 5, a bolt 18 is installed on the front side of the inner surface of the right-side connecting member 33b so as to protrude inward, and a cylindrical engagement body 19 with a larger diameter at its tip is installed on the rear side of the inner surface of the connecting member 33b so as to protrude inward.

[0028] The abutment portion 14b is fixed to the inner surface of the connecting member 33b by threading the bolt 18 of the connecting member 33b onto the front nut 16 and inserting and engaging (removably engaging) the engagement body 19 of the connecting member 33b of the temple portion 3b into the rear engagement hole 17 using elasticity. Therefore, by adjusting the degree of engagement between the nut 16 and the bolt 18, the amount of inward protrusion (the amount of protrusion in the direction of the arrow in FIG. 5(a)) can be adjusted. The left abutment portion 14a is also fixed symmetrically to the left temple portion 3a with a structure similar to that of the right abutment portion 14b described above, and the amount of inward protrusion can be adjusted.

[0029] <How to use and function of glasses> 9 and 10 show the eyeglasses G worn by a user. The eyeglasses G are worn by placing the left and right end pieces 4a and 4b, which are arc-shaped, along the back of the wearer's ear and the front portion of the upper side of the tragus (i.e., abutting the portion from the rear to the front of the base of the wearer's helix). When the eyeglasses G are worn in this manner, the rear ends of the left and right end pieces 4a and 4b fit into the bone recesses behind the ear, and the pressing protrusions 13 on the front ends (base ends) of the left and right end pieces 4a and 4b press against the upper portion near the rear end of the wearer's zygomatic arch C (i.e., the front portion above the tragus), fixing (positioning) the eyeglasses G. This prevents the left and right end pieces 4a and 4b from moving around the wearer's ear.

[0030] When the eyeglasses G are worn in this manner, the left and right temple portions 3a, 3b are positioned approximately horizontally along the upper edge of the wearer's zygomatic arch C (see Figure 6), and the tip ends (rear ends, i.e., the right sides in Figures 4 and 10) of the left and right temple portions 3a, 3b are restrained so as not to move on the wearer's temporal region.

[0031] In addition, the abutment portions 14a, 14b protruding inward from approximately the center (approximately the center in the front-to-back direction) of the left and right temple portions 3a, 3b abut against the outer side of the front end of the wearer's zygomatic arch C. As a result, the base end sides (front end sides, i.e., the left side in FIGS. 4 and 10) of the left and right temple portions 3a, 3b are restrained from moving on the wearer's temporal region, and the lens holder 2 is also restrained from moving. Furthermore, because the eyeglasses G do not have pads on the lens holder 2 for abutting against the nose, the bottom ends of the left and right lenses are held without coming into contact with the wearer's skin.

[0032] As described above, the eyeglasses G are worn with the entire left and right end pieces 4a, 4b and the contact pieces 14a, 14b in contact with the skin of the wearer's head, thereby achieving high wearing strength (fixing strength when worn).

[0033] <Effect of glasses> As described above, the eyeglasses G have each end piece 4a, 4b bent in an upward convex shape (an upward convex arc) so as to abut against the wearer's earlobe from the rear to the front, and each end piece 4a, 4b has a pressing protrusion 13 at the base for pressing against the upper portion near the rear end of the wearer's zygomatic arch C. Therefore, even though the eyeglasses G do not have nose pads, they fit very well, providing a comfortable fit even when the wearer repeatedly opens their eyes, and they are unlikely to slip off. Furthermore, even when worn for long periods of time or during exercise, the eyeglasses do not cause pain to the wearer or cause the front piece to shift position.

[0034] Furthermore, the eyeglasses G have downwardly convex connections between the end pieces 4a, 4b and the temples 3a, 3b, so that when worn, the temples 3a, 3b are positioned along the upper edge of the wearer's zygomatic arch C. Furthermore, abutment portions 14a, 14b are formed on the inside of the temples 3a, 3b, so that when worn, the abutment portions 14a, 14b abut against the outside of the anterior end of the wearer's zygomatic arch C (portion α in FIG. 6). This provides excellent support for maintaining the positions of the left and right lenses L1, L2, and keeping the left and right lenses L1, L2 at the correct eyepoint (usually a position where the inner surfaces of the lenses are 12 mm from the surface of the eyeball). Furthermore, the eyeglasses can maintain their fit for a long period of time without any maintenance.

[0035] Furthermore, the eyeglasses G have pressure projections 13, 13 that are approximately semi-cylindrical and protrude inward along the longitudinal direction of each end piece 4a, 4b, and press against the upper portion of the posterior end of the wearer's zygomatic arch over a wide area. This allows the base end (front end) of each end piece 4a, 4b, which is engaged around the base of the wearer's earlobe, to be positioned with high restraint force. As a result, the eyeglasses G fit extremely well and are very unlikely to slip off. Despite this, the pressure projections 13, 13 are not visible from the outside, resulting in an excellent design.

[0036] In addition, the eyeglasses G have each end piece 4a, 4b formed in an upwardly convex arc shape, and the left and right temple pieces 3a, 3b are positioned to connect the base ends of the left and right end pieces 4a, 4b to the upper side of the outer center of the retaining frames 6a, 6b that hold the left and right lenses L1, L2, and the abutment parts 14a, 14b are positioned at the same height as the temple pieces 3a, 3b so as not to be noticeable from the outside, resulting in an extremely good appearance when worn.

[0037] Furthermore, in the eyeglasses G, the left and right contact portions 14a, 14b are provided so that the amount of inward protrusion can be adjusted, so the wearer can easily adjust the pressure strength of the contact portions 14a, 14b on the temporal region (i.e., fit).In addition, in the eyeglasses G, the left and right temple portions 3a, 3b are adjustable in length in the front-to-back direction, so the wearer can easily adjust the contact positions of the contact portions 14a, 14b to fit the shape of their head.

[0038] <Example of changing glasses> The eyeglasses according to the present invention are not limited to the aspects of the above-described embodiments, and the shape, structure, material, and other configurations of the lenses, lens holding portions (connecting arms, holding frames), temple portions, abutment portions, end pieces, pressure projections, etc. can be appropriately modified as needed within the scope of the present invention.

[0039] For example, the eyeglasses according to the present invention are not limited to eyeglasses in which the lens holding portions and temple portions are made of metal as in the above embodiment, but may be eyeglasses in which the lens holding portions are made of metal and the temple portions are made of synthetic resin, eyeglasses in which the lens holding portions and temple portions are made of synthetic resin, etc. Furthermore, the eyeglasses according to the present invention are not limited to eyeglasses in which the end pieces are formed continuously behind the temple portions as in the above embodiment (in which the end pieces are formed by covering the outside of a core body formed integrally with the rear ends of the left and right temple portions with synthetic resin), but may be eyeglasses in which the end pieces and temple portions are provided separately, etc.

[0040] Furthermore, the eyeglasses according to the present invention are not limited to those in which the contact portions are made of silicone rubber as in the above-described embodiment, and the material of the contact portions can be appropriately changed as necessary. Furthermore, the contact portions are not limited to those formed in a rectangular parallelepiped shape elongated from front to back as in the above-described embodiment, but may be formed in a conical shape (with a rounded tip), a truncated cone shape, an elliptical cylinder shape, a triangular prism shape (with the height direction orthogonal to the longitudinal direction of the temples), or a tapered tongue shape protruding inward. Note that, when the contact portions are formed in a rectangular parallelepiped shape elongated from front to back as in the above-described embodiment, there is an advantage in that the contact portions can be easily and firmly fixed (to prevent inadvertent movement) by abutting the elongated region of the contact portions against the outer side of the front end of the wearer's zygomatic arch.

[0041] Furthermore, the eyeglasses according to the present invention are not limited to those in which the contact surfaces of the contact portions that come into contact with the wearer's temporal region (the outer sides of the anterior ends of the zygomatic arches) are approximately parallel to the inner surfaces of the temple portions, as in the above-described embodiment, but may be modified so that the contact surfaces are inclined (for example, inclined so that the front side protrudes more inward than the rear side).In addition, the eyeglasses according to the present invention are not limited to those in which the left and right temple portions are provided with a pair of contact portions on the left and right sides for contacting the outer sides of the anterior ends of the wearer's zygomatic arches, as in the above-described embodiment, but may be provided with two or more pairs of contact portions on the left and right sides that perform the same function.

[0042] Furthermore, the abutment parts are not limited to those fixed to the temple parts by screwing with bolts and nuts (including those fixed in a detachable manner) as in the above embodiment, but may be those fixed to the temple parts (including those fixed in a detachable manner) by utilizing the elasticity of synthetic resin (resilience after deformation). Note that if the abutment parts are fixed in a detachable manner, there is an advantage in that if the size of the abutment part does not match the wearer's size, it can be easily replaced with one of a different size.

[0043] Furthermore, the eyeglasses according to the present invention are not limited to those in which the contact portions are directly fixed to the inside of the left and right temples as in the above-described embodiment, but may instead be those in which the contact portions are indirectly fixed to the inside of the left and right temples using metal arms such as wire. Fig. 11 shows an example in which the contact portions are indirectly fixed to the inside of the left and right temples, in which the contact portions 14b' are screwed to the inside of the temples 3b via metal fixing members 21. The fixing member 21 has an oval ring body 22 at its tip and an oval plate-like base portion 23 connected by a wire-like arm 24 bent into a U-shape, and the base portion 23 is screwed to the inside of the temples 3b. Abutment portion 14b' formed in a flattened ellipse and made of an elastic material (such as silicone rubber) is fitted into ring body 22 at the tip of fixing member 21, and the inner surface (abutment surface) of abutment portion 14b' is inclined so that the front side protrudes more inward than the rear side (note that a symmetrical abutment portion 14a' is similarly fixed to left temple 3a). Adopting such a configuration has the advantage that the pressing force of abutment portion 14b' on the temporal region can be easily adjusted by changing the bending angle of arm 24 of fixing member 21.

[0044] Furthermore, the eyeglasses according to the present invention are not limited to those in which the abutment parts have an adjustable amount of inward protrusion, as in the above embodiment, but may have an inward protrusion amount that does not change. In addition, the abutment parts are not limited to those that are fixed (engaged) to the inside of the temple parts by engaging engagement holes provided on the rear side with engagement bodies provided on the inner surfaces of the temple parts, but may be fixed to the inside of the temple parts by other engagement mechanisms.

[0045] 12 shows an example of an abutment portion secured to the inside of the temple portion by a fastening mechanism different from that of the above embodiment. A bolt 41 is installed in the temple portion 3b (3a) so as to protrude inward, and a bifurcated engaging body 42 with an open rear side is secured to the inner surface of the temple portion 3b with a gap formed between it and the temple portion 3b. The abutment portion 14b" (14a") is integrally formed from silicone rubber or the like in a flat, approximately elliptical cylindrical shape, and a flat, plate-like engaging portion 43 is attached to the front of the abutment portion 14b" (14a") via a connecting portion 44 with a gap formed between it and the inner surface of the main body 45. A nut 46 with a threaded groove is secured to the inner surface of the rear of the main body 45. As with the abutment portion of the above embodiment, the abutment portion 14b" (14a") configured as described above can also adjust the amount of inward protrusion (the amount of protrusion in the direction of the arrow in Figure 12(b)) by adjusting the degree to which the nut 46 and bolt 41 are threaded together, and at the desired amount of protrusion, the front end of the engagement portion 43 can be engaged with an engagement body 42 fixed to the inner surface of the temple portion 3b, thereby fixing the abutment portion 14b" (14a") to the inside of the temple portion 3b. Even when such a configuration is adopted, as with the eyeglasses of the above embodiment, it becomes possible for the wearer to easily adjust (by themselves) the pressure strength of the abutment portion 14b" (14a") against the temporal region.

[0046] In addition, the eyeglasses according to the present invention are not limited to those in which the connection portions between the left and right end pieces and the left and right temple pieces are bent downwardly convexly at an angle of 150° as in the above embodiment, but the bending angle at the connection portions between the left and right end pieces and the left and right temple pieces can be appropriately changed as needed. Note that adjusting the bending angle to a range of approximately 100° to 165° is preferable because it enables each temple piece to be positioned along the upper edge of the wearer's zygomatic arch with a length that can exert sufficient pressure (without misalignment), and adjusting it to a range of 120° to 155° is more preferable.

[0047] Furthermore, the left and right temple ends may be arc-shaped (arc-shaped with an upward convexity when viewed from the side), and are not limited to being bent into an upward convex, approximately semicircular arc (approximately an inverted U-shape) as in the above embodiment. They may also be bent into an upward convex, approximately 1 / 4 arc (U-shape) as shown in Figure 13, with a small inclination angle at the tip relative to the horizontal line (an inclination angle of approximately 0° to 20°), for example.

[0048] Furthermore, the eyeglasses according to the present invention are not limited to those provided with pressure protrusions at the base ends of the left and right end pieces for pressing the upper portions near the posterior ends of the wearer's zygomatic arches, as in the above-described embodiment, but may also have no pressure protrusions. Furthermore, when pressure protrusions are formed at the base ends of the left and right end pieces, as in the above-described embodiment, the pressure protrusions are not limited to those formed integrally with the left and right end pieces, but may be formed separately from the left and right end pieces and attached to the base ends of the left and right end pieces. In addition, the pressure protrusions are not limited to those having a bulging shape that is wider (larger in diameter) than the remaining portions (i.e., approximately semi-cylindrical), as in the above-described embodiment, but may also be conical (with a rounded tip) or truncated conical. Furthermore, although there are no particular limitations on the height of the pressure protrusions (the amount of inward protrusion), it is preferable to adjust it to within the range of 3.0 to 6.0 mm, as this will provide a good degree of pressure on the wearer's temples and extremely strong binding force of the left and right temple tips against the wearer's ears. [Industrial Applicability]

[0049] The eyeglasses according to the present invention have the excellent effects as described above, and therefore can be suitably used for correcting eyesight, blocking sunlight, and as a fashion item. [Explanation of symbols]

[0050] G...glasses 1 frame 2. Lens holder 3a, 3b Temple section 4a, 4b, 4b' Modern section 13. Pressing protrusion 14a, 14b, 14b', 14b"...Contact part P: Downward convex bend

Claims

1. A pair of eyeglasses having a lens holder for holding a pair of left and right lenses, temples extending rearward from both left and right ends of the lens holder, and ear tips provided near the ends of the temples, Each of the earpiece ends is bent upward in a convex shape so as to contact a portion of the base of the wearer's earlobe from the rear side to the front side, In order to position each of the temples along the upper edge of the zygomatic arch of the wearer, the connection portion between each of the end pieces and each of the temples is bent in a downward convex shape, A pressing protrusion is provided at the forward downward inclined portion at the base end of each of the end pieces for pressing the upper portion at the rear end of the wearer's zygomatic arch, and these pressing protrusions are formed so that the base end portions of the left and right end pieces bulge inward by a predetermined length relative to the core body at the tip of the temple pieces more than other portions, The eyeglasses are characterized in that a contact portion is formed on the inside of each temple portion to contact the outside of the front end of the wearer's zygomatic arch, and the amount of inward protrusion of these contact portions is adjustable.

2. Eyeglasses as described in Claim 1, characterized in that the abutment portion is fixed to the inside of the temple portion using a bolt and a nut, and the amount of inward protrusion can be adjusted by adjusting the degree to which the bolt and nut are screwed together.

3. 2. The eyeglasses according to claim 1, wherein the pressing protrusions are substantially semi-cylindrical bodies protruding inward along the longitudinal direction of each of the end pieces.

Citation Information

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