Spectacle frame

Abstract

This improves the wearer's safety and the performance of preventing the eyeglass frame from breaking. An eyeglass frame has a pair of lens rings (11R, 11L) for fixing lenses (LR, LL), a bridge (12) connecting the pair of lens rings, and temples (14R, 14L) respectively connected to the lens rings (11R, 11L) via post heads (13R and 13L). The eyeglass frame (1) includes an outer shell portion and an inner shell portion, the inner shell portion being softer than the outer shell portion and being disposed on at least a portion inside the outer shell portion. The inner shell portion includes temple inner shell portions (14RI, 14LI), which are disposed on the inner side of the temples of the outer shell portion.

Description

Technical Field

[0001] This invention relates to eyeglass frames. Background Technology

[0002] There have always been technologies aimed at improving the wearer's safety and preventing eyeglass frames from breaking when subjected to external forces such as impacts from sports (see, for example, Patent Document 1).

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2023-157908 Summary of the Invention

[0006] However, there are further requirements to improve the safety of wearers and prevent eyeglass frames from breaking.

[0007] This invention was made in view of this situation, with the aim of improving the wearer's safety and preventing damage to the eyeglass frames.

[0008] To achieve the above objectives, one embodiment of the eyeglass frame of the present invention includes a pair of lens rims for securing the lenses, a bridge connecting the pair of lens rims, and temples connected to the lens rims via post heads.

[0009] The eyeglass frame includes an outer shell portion and an inner shell portion, the inner shell portion being softer than the outer shell portion, and the inner shell portion being located on at least a portion inside the outer shell portion.

[0010] The inner shell portion includes a temple inner shell portion, which is disposed on the inner side of the temple of the outer shell portion.

[0011] Invention Effects

[0012] This invention improves the wearer's safety and the ability to prevent eyeglass frames from breaking. Attached Figure Description

[0013] Figure 1 A perspective view showing the overall situation of eyeglasses with an eyeglass frame to which an embodiment of the present invention is applied.

[0014] Figure 2 A perspective view showing the overall situation of eyeglasses with an eyeglass frame to which embodiments of the present invention are applied, and from the perspective of... Figure 1 Three-dimensional diagrams shown from different directions.

[0015] Figure 3 for Figure 1 and Figure 2 The front view of the glasses is shown.

[0016] Figure 4 for Figure 1 and Figure 2 The image shows a top view of the glasses.

[0017] Figure 5 In order to be in Figure 4 The top view of the glasses shown further illustrates cross-sections and reference numerals.

[0018] Figure 6 for Figure 1 and Figure 2 The image shown is a bottom view of the glasses.

[0019] Figure 7 for Figure 1 and Figure 2 The left view of the glasses shown.

[0020] Figure 8 for Figure 1 and Figure 2 The rear view of the glasses is shown.

[0021] Figure 9 for Figure 4 The ABCD line combination section view of the glasses is shown.

[0022] Figure 10 for Figure 5 The image shows a cross-sectional view of the glasses along the EE line.

[0023] Figure 11 for Figure 5 The image shows a cross-sectional view of the glasses along the FF line.

[0024] Figure 12 for Figure 7 The image shows a cross-sectional view of the glasses along the GG line. Detailed Implementation

[0025] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0026] First, using Figure 1 and Figure 2 The general situation of eyeglasses with eyeglass frames to which embodiments of the present invention are applied will be described.

[0027] Furthermore, in the description of the eyeglass frame according to embodiments of the present invention, unless otherwise specified, the orientation is as defined below. That is, a three-dimensional orthogonal coordinate system composed of the X-axis, Y-axis, and Z-axis described below is used.

[0028] When the wearer is facing directly and wearing glasses, the left and right directions from the wearer's perspective are defined as the X-axis. Furthermore, the direction that is left from the wearer's perspective is called the "positive X-axis direction," and its opposite direction is called the "negative X-axis direction."

[0029] Additionally, the front-back direction from the wearer's perspective is defined as the Y-axis. Furthermore, the direction that is forward from the wearer's perspective is called the "negative Y-axis direction," and its opposite direction is called the "positive Y-axis direction."

[0030] Furthermore, the vertical direction from the wearer's perspective, i.e., the direction in which gravity acts, is defined as the Z-axis. Additionally, the opposite direction of gravity (the upward direction) is called the "positive Z-axis direction," and its opposite direction (the downward direction) is called the "negative Z-axis direction."

[0031] Additionally, the negative Y-axis direction is appropriately referred to as the "front side," the positive Y-axis direction as the "rear side," the positive Z-axis direction as the "upper side," and the negative Z-axis direction as the "lower side." Furthermore, in the XY plane, the direction away from the wearer's head is appropriately referred to as the "outer side," and the opposite direction as the "inner side."

[0032] Furthermore, the eyeglass frame of this embodiment has a shape that is symmetrical about the YZ plane in the X-axis direction. Hereinafter, the parts constituting the eyeglasses, specifically those on the left and right sides of the wearer, will be labeled with reference numeral L for the left side and reference numeral R for the right side.

[0033] <Overall Situation>

[0034] Figure 1 A perspective view showing the overall situation of eyeglasses with an eyeglass frame to which an embodiment of the present invention is applied.

[0035] Figure 2 A perspective view showing the overall situation of eyeglasses with an eyeglass frame to which embodiments of the present invention are applied, and from the perspective of... Figure 1 Three-dimensional diagrams shown from different directions.

[0036] The eyeglass frame 1 has rims 11R and 11L, bridge 12, temples 13R and 13L, and temples 14R and 14L.

[0037] In this embodiment, the eyeglass frame 1 is integrally molded using thermoplastic elastomer (TPE). That is, the lens rims 11R and 11L, the bridge 12, the temple tips 13R and 13L, and the temples 14R and 14L are integrally formed and inseparable. For ease of explanation, the integrally formed eyeglass frame will be described below by dividing it into the lens rims 11R and 11L, the bridge 12, the temple tips 13R and 13L, and the temples 14R and 14L. Furthermore, in the accompanying drawings, auxiliary lines distinguishing each part are indicated by reference numerals beginning with "S".

[0038] Furthermore, in this embodiment, the eyeglass frame 1 is integrally molded using two thermoplastic resin elastomers of different hardnesses through two-material injection molding. The outer shell of the eyeglass frame 1 is molded from the harder thermoplastic resin elastomer, as will be described later. The inner shell of the eyeglass frame 1 is molded from a softer thermoplastic resin elastomer. In other words, the outer shell and inner shell are integrally molded using two thermoplastic resin elastomers of different hardnesses and are inseparable.

[0039] As such, no metal is used in the material of the eyeglass frame 1. Therefore, the safety of the wearer and others is improved.

[0040] In this embodiment, the outer shell of the eyeglass frame 1 includes lens outer shells 11RO and 11LO, bridge outer shell 12O, temple tips 13R and 13L, and temple outer shells 14RO and 14LO. Additionally, the inner shell of the eyeglass frame 1 includes lens inner shells 11RI and 11LI, bridge inner shell 12I, and temple inner shells 14RI and 14LI.

[0041] Furthermore, the reference numerals for the various parts of the outer shell portion, which is molded from a relatively hard thermoplastic resin elastomer, will be further marked with the numeral 'O', and the reference numerals for the various parts of the inner shell portion, which is molded from a softer thermoplastic resin elastomer, will be further marked with the numeral 'I'.

[0042] The lens rings 11R and 11L are the parts of the eyeglass frame 1 that surround and fix the lenses LR and LL respectively.

[0043] Additionally, the lens ring 11R includes an inner lens ring portion 11RI and an outer lens ring portion 11RO. Furthermore, the lens ring 11L includes an inner lens ring portion 11LI and an outer lens ring portion 11LO. For example... Figure 1 As shown, the inner shell portions 11RI and 11LI of the lens rings have multiple bottomed holes. The specific structure of the inner shell portions 11RI and 11LI of the lens rings 11R and 11L, as well as the outer shell portions 11RO and 11LO of the lens rings, and the advantages enjoyed by having this structure, will be described later.

[0044] Furthermore, unless there is a need to distinguish between lens rings 11R and 11L, they will be referred to as "lens ring 11" below.

[0045] The bridge of the nose 12 connects to a pair of lens rings 11R and 11L.

[0046] The bridge of the nose 12 is connected to the lens ring 11R via the part shown by the auxiliary line S1, and to the lens ring 11L via the part shown by the auxiliary line S4, thereby connecting a pair of lens rings 11R and 11L.

[0047] Additionally, the bridge of the nose 12 includes an inner shell portion 12I and an outer shell portion 12O. For example... Figure 1 As shown, the inner shell portion 12I of the nose bridge has multiple holes or multiple bottomed openings extending in the vertical direction. The specific structure of the inner shell portion 12I and the outer shell portion 12O of the nose bridge 12, and the advantages enjoyed by having this structure, will be described later.

[0048] The lens caps 13R and 13L connect the lens rings 11R and 11L to the temples 14R and 14L, respectively, as described later. The lens cap 13R connects to the lens ring 11R via the portion shown by auxiliary line S2 and to the temple 14R via the portion shown by auxiliary line S3, thus connecting the lens ring 11R and the temple 14R. Similarly, the lens cap 13L connects to the lens ring 11L via the portion shown by auxiliary line S5 and to the temple 14L via the portion shown by auxiliary line S6, thus connecting the lens ring 11L and the temple 14L.

[0049] Furthermore, the temple tips 13R and 13L each have a recess 13R-C and 13L-C that are recessed from the outside of the eyeglass frame toward the inside. Because the temple tips 13R and 13L each have a recess 13R-C and 13L-C, they can be deformed flexibly without breaking, regardless of whether they are deformed in the direction of closing the temple 14 (the direction in which the ends in the positive Y-axis direction approach each other) or opening the temple 14 (the direction in which the ends in the positive Y-axis direction move away from each other).

[0050] Furthermore, unless there is a need to distinguish between pile heads 13R and 13L separately, they will be referred to as "pile head 13" in the following text.

[0051] Temples 14R and 14L are connected to lens rims 11R and 11L via posts 13R and 13L, respectively. Temple 14R is connected to post 13R via the portion shown by auxiliary line S3, and post 13R is connected to lens rim 11R via the portion shown by auxiliary line S2. Temple 14L is connected to post 13L via the portion shown by auxiliary line S6, and post 13L is connected to lens rim 11L via the portion shown by auxiliary line S5.

[0052] Additionally, temple 14R includes an inner temple shell portion 14RI and an outer temple shell portion 14RO. Additionally, temple 14L includes an inner temple shell portion 14LI and an outer temple shell portion 14LO. For example... Figure 1 As shown, the inner temple shells 14RI and 14LI have multiple holes or multiple bottomed openings extending through the vertical direction. The specific construction of the inner temple shells 14RI and 14LI of the temples 14R and 14L, as well as the outer temple shells 14RO and 14LO, and the advantages enjoyed by having such construction will be described later.

[0053] Furthermore, unless there is a need to distinguish between temple 14R and 14L separately, they will be referred to as "temple 14" in the following text.

[0054] The above utilizes Figure 1 and Figure 2 The general situation of the eyeglasses of the eyeglass frame 1 to which the embodiments of the present invention are applied has been described.

[0055] <Detailed Structure>

[0056] Below, in Figure 1 and Figure 2 Based on Figures 3 to 7 The detailed structure of the eyeglasses of the eyeglass frame 1 according to the embodiments of the present invention will be described.

[0057] Figure 3 for Figure 1 and Figure 2 The front view of the glasses is shown.

[0058] Figure 4 for Figure 1 and Figure 2 The image shows a top view of the glasses.

[0059] Figure 5 In order to be in Figure 4 The top view of the glasses shown further illustrates cross-sections and reference numerals.

[0060] Figure 6 for Figure 1 and Figure 2 The image shown is a bottom view of the glasses.

[0061] Figure 7 for Figure 1 and Figure 2 The left view of the glasses shown.

[0062] Figure 8 for Figure 1 and Figure 2 The rear view of the glasses is shown.

[0063] Furthermore, the right view is omitted because it is symmetrical to the left view.

[0064] like Figure 1 and Figure 2 As shown, the inner shell portions 11RI and 11LI of the lens ring 11 have bottomed holes (hereinafter referred to as bottomed holes) that are recessed in the upward or downward direction.

[0065] Specifically, for example, on the upper edge side 11RI-ST of the inner shell portion 11RI of the lens ring 11R, a plurality of bottomed holes are formed along the left-right direction (X direction). Similarly, on the upper edge side 11LI-ST of the inner shell portion 11LI of the lens ring 11L, a plurality of bottomed holes are formed along the left-right direction.

[0066] Among them, the upper edge sides 11RI-ST and 11LI-ST of the inner shell of the lens ring 11RI and 11LI respectively refer to the edge parts on the positive Z-axis direction of the lens ring 11R and 11L.

[0067] In addition, multiple bottomed holes are formed along the left-right direction (X-axis direction) on the lower edge side 11RI-SB of the inner shell portion 11RI of the lens ring 11R, recessed from the lower side to the upper side. Similarly, multiple bottomed holes are formed along the left-right direction on the lower edge side 11LI-SB of the inner shell portion 11LI of the lens ring 11L, recessed from the lower side to the upper side.

[0068] Among them, the lower edge sides 11RI-SB and 11LI-SB of the inner shell of the lens ring 11RI and 11LI respectively refer to the edge portion of the lens ring 11R and 11L on the negative Z-axis direction.

[0069] In addition, multiple holes are formed on the upper surface 12I-ST of the inner shell portion 12I of the nasal bridge 12, extending in the vertical direction.

[0070] Furthermore, a plurality of through holes are formed in the inner shell portion 14RI of the temple 14R along the length of the temple 14R. Similarly, a plurality of through holes are formed in the inner shell portion 14LI of the temple 14L along the length of the temple 14L.

[0071] The length directions of the inner shell portions 14RI and 14LI of the temple refer to the approximate Y-axis directions of the temples 14R and 14L, respectively.

[0072] Here, the structure of the temple 14 having multiple holes running through it in the vertical direction, and the advantages enjoyed by having this structure, will be explained.

[0073] like Figures 1 to 4As shown, the inner shell portion 14RI of the temple 14R has an upper surface 14RI-ST, an inner surface 14RI-SI, and a lower surface 14RI-SB. Furthermore, the upper surface 14RI-ST and the lower surface 14RI-SB are smoothly connected as a single surface at one end (+Y side end) of the temple 14R in the positive Y-axis direction.

[0074] Similarly, the inner shell portion 14LI of the temple 14L has an upper surface 14LI-ST, an inner surface 14LI-SI, and a lower surface 14LI-SB. Furthermore, the upper surface 14LI-ST and the lower surface 14LI-SB are smoothly connected as a single surface at one end (+Y side end) of the temple 14L in the positive Y-axis direction.

[0075] like Figure 1 and Figure 2 As shown, in the inner shell portion 14RI of the temple, a plurality of holes are formed along the length direction of the temple 14R, extending from the upper surface 14RI-ST of the inner shell portion 14RI of the temple to the lower surface 14RI-SB.

[0076] Similarly, in the inner shell portion 14LI of the temple, a plurality of holes are formed along the length direction of the temple 14L, extending from the upper surface 14LI-ST of the inner shell portion 14LI to the lower surface 14LI-SB.

[0077] In addition, such as Figure 5 As shown, the adjacent holes of the inner shell portion 14RI of the temple are formed by wall portions 14RI-W1 to 14RI-W6. The wall portions 14RI-W1 to 14RI-W6 are inclined from the front side (-Y side) to the rear side (+Y side) as they move from the outside to the inside of the eyeglass frame 1. Furthermore, unless it is necessary to distinguish the wall portions 14RI-W1 to 14RI-W6 separately, they will be collectively referred to as "wall portion 14RI-W".

[0078] Similarly, adjacent holes in the inner shell portion 14LI of the temple are formed by wall portions 14LI-W1 to 14LI-W6, respectively. The wall portions 14LI-W1 to 14LI-W6 are inclined from the front (-Y side) to the rear (+Y side) as they move from the outside to the inside of the eyeglass frame 1. Furthermore, unless it is necessary to distinguish the wall portions 14LI-W1 to 14LI-W6 separately, they will be collectively referred to as "wall portion 14LI-W".

[0079] Here, for example, suppose a specified object impacts the temple 14R from the negative X-axis direction toward the positive X-axis direction. In this case, the temple 14R of the eyeglass frame 1 will deform. Specifically, for example, firstly, the inner surface 14RI-SI of the inner shell portion 14RI of the temple will come into contact with the wearer. As mentioned above, the inner shell portion 14R of the temple is formed of a thermoplastic resin rubber elastomer that is softer than the outer shell portion. Therefore, after contacting the wearer, the inner shell portion 14RI of the temple deforms before the outer shell portion 14RO of the temple. In addition, the inner shell portion 14RI of the temple is formed with multiple holes as described above, so the multiple holes will deform (collapse), making it easier to deform.

[0080] Therefore, the presence of the 14RI inner shell of the temple reduces impact and improves the wearer's safety.

[0081] Furthermore, the inner surface 14RI-SI of the inner shell portion 14RI of the temple generates friction against the wearer after contacting the wearer. Based on this, the wall portion 14RI-W, which is inclined from the outside to the inside and from the front to the rear of the eyeglass frame 1, deforms relative to the inner surface 14RI-SI of the inner shell portion 14RI of the temple, thereby moving the temple 14R in the negative Y-axis direction.

[0082] Therefore, the lens rim 11R and lens LR are prevented from contacting the wearer, and in the event of contact, the pressure applied to the wearer is reduced, thereby improving the wearer's safety.

[0083] Furthermore, when the wall portion 14RI-W, which slopes from the front to the rear, deforms, two or more wall portions 14RI-W overlap each other in the X-axis direction. As a result, the thickness of the wall portion 14RI-W in the X-axis direction becomes the sum of the thicknesses of the overlapping wall portions 14R. That is, the inner shell portion 14RI of the temple, which is a thermoplastic resin rubber elastomer that is softer than the outer shell portion, has room for deformation corresponding to the sum of the thicknesses of the overlapping wall portions 14RI-W.

[0084] Throughout the entire area containing multiple holes running vertically, the wall portion 14RI-W is able to have areas that overlap approximately equally evenly in the event of deformation. This enhances the wearer's safety.

[0085] Furthermore, when deformation occurs in the direction of opening the temple 14 (the direction in which the ends in the positive Y-axis direction move away from each other), a restoring force acts in the long side direction of the XY plane of the wall portion 14RI-W. As a result, the eyeglass frame 1 easily returns to its normal shape. That is, it is easier to return to its normal shape, thus improving the wearing comfort, and even with repeated deformation, it easily returns to its normal shape, thereby extending the lifespan of the eyeglass frame 1.

[0086] The same applies when an impact is applied to the temple 14L.

[0087] In addition, multiple holes running vertically through the inner shell of the temple 14RI and 14LI are provided in non-contact areas that do not come into contact with the head of the wearer wearing the eyeglasses.

[0088] Non-contact area refers to the area that does not normally come into contact with the wearer. More specifically, it refers to the area other than the part of the back end (+Y side end) of the temples that comes into contact with the wearer's head and ears when the wearer is wearing the eyeglass frame.

[0089] As described above, the multiple holes extending in the vertical direction are present in such a way that they pass through the upper surface 14RI-ST and the lower surface 14RI-SB of the inner temple shell portion 14RI. Specifically, for example, the multiple holes extending in the vertical direction are not formed in the inner surface 14RI-SI of the inner temple shell portion 14RI that is in contact with the wearer's head.

[0090] Therefore, the wearer will not come into contact with unevenness caused by multiple holes running through the vertical direction, thus achieving the effect of not causing discomfort to the wearer and thus improving the wearing experience.

[0091] Furthermore, near the portion of the inner temple shell 14RI of the temple 14R where multiple holes are provided, the length of the inner surface 14RI-SI in the approximate Y-axis direction is longer than the length of the surface that contacts the outer temple shell 14RO in the approximate Y-axis direction. Therefore, even if deformation occurs in the direction in which the temple 14 is opened (the direction in which the ends in the positive Y-axis direction move away from each other), it can deform flexibly, reducing the risk of breakage.

[0092] The above mainly uses the temple 14R to explain the specific structure of the multiple holes that run through the temple 14 in the vertical direction, and the advantages enjoyed by having this structure.

[0093] like Figure 5 As shown, temple 14L has a structure that is basically the same as temple 14R, and has the advantages that come with having this structure.

[0094] The following explanation will focus on the structure of the multiple bottom holes in the lens ring 11 and the advantages enjoyed by having this structure, using the lens ring 11R as an example.

[0095] Furthermore, each of the adjacent bottom holes of the inner shell portion 11RI of the lens rim is formed by a wall portion 11RI-W, just as the inner shell portion 14RI of the temple is. The multiple wall portions 11RI-W of the inner shell portion 11RI of the lens rim are inclined from the bridge 12 side to the post 13R side as they move from the outside to the inside of the eyeglass frame 1.

[0096] Here, for example, suppose a specified object impacts the inner shell portion 11RI of the lens rim from the negative Y-axis direction toward the positive Y-axis direction. In this case, the lens rim 11R of the eyeglass frame 1 will deform. Specifically, for example, the inner surface of the inner shell portion 11RI will come into contact with the wearer. As mentioned above, the inner shell portion 11RI is formed of a thermoplastic resin rubber elastomer that is softer than the outer shell portion 11RO. Therefore, the inner shell portion 11RI deforms before the outer shell portion 11RO. In addition, the inner shell portion 11RI has multiple bottom holes formed as described above, so these multiple bottom holes will deform (collapse), making it easier to deform.

[0097] Therefore, the presence of the inner shell portion 11RI of the lens ring reduces the impact and improves the wearer's safety.

[0098] Furthermore, the inner surface of the inner shell portion 11RI of the lens rim generates friction against the wearer after contact. Based on this, the wall portion 12O-W, which slopes from the outside of the eyeglass frame 1 towards the inside and from the bridge 12 side towards the headstock 13R side, deforms relative to the inner surface of the inner shell portion 11RI of the lens rim, causing the lens rim 11R to move in the positive X-axis direction. The positive X-axis direction is the direction away from the wearer's right eye at the nose pads and other locations on the lens rim 11R.

[0099] Therefore, the nose pads and other parts of the 11R lens frame are prevented from contacting the wearer (especially the right eyeball), and the pressure applied to the wearer is reduced in the event of contact, thus improving the wearer's safety.

[0100] Furthermore, when the wall portion 11RI-W of the inner shell portion 11RI of the lens ring deforms, two or more wall portions 11RI-W overlap each other in the Y-axis direction. As a result, the thickness of the wall portion in the Y-axis direction becomes the sum of the thicknesses of the overlapping wall portions 11RI-W. That is, the inner shell portion 11RI of the lens ring, which is a thermoplastic resin rubber elastomer that is softer than the outer shell portion, has room for deformation corresponding to the sum of the thicknesses of the overlapping wall portions 11RI-W.

[0101] Throughout the entire area with multiple bottom holes, the wall portion 11RI-W is able to have areas that overlap approximately evenly in the event of deformation. This enhances the wearer's safety.

[0102] Furthermore, as described above, in the case of deformation in the direction of closing the temple 14 (the direction in which the ends in the positive Y-axis direction approach each other) and opening the temple 14 (the direction in which the ends in the positive Y-axis direction move away from each other), due to the presence of the recesses 13R-C and 13L-C of the respective posts 13R and 13L, the frame will deform flexibly without breaking. However, if the lens rim 11 also deforms, a restoring force acts in the long side direction of the wall portion 11RI-W. Accordingly, the eyeglass frame 1 easily returns to its normal shape. That is, it is easier to return to its normal shape, thus improving the wearing comfort, and even with repeated deformation, it easily returns to its normal shape, thus extending the lifespan of the eyeglass frame 1.

[0103] The above describes the specific structure of the multiple bottom holes in the mirror ring 11 and the advantages enjoyed by having this structure, using the mirror ring 11R.

[0104] like Figure 5 As shown, the lens ring 11L has a structure that is basically the same as that of the lens ring 11R, and has the advantages that come with having this structure.

[0105] The following will explain the structure of the hole that runs through the nose bridge 12 in the vertical direction and the advantages enjoyed by having this structure.

[0106] Furthermore, the hole penetrating vertically in the inner shell portion 12I of the nose bridge is formed side by side with the bottomed holes provided in the inner shell portions 11RI and 11LI of the lens ring adjacent to the inner shell portion 12I of the nose bridge, and is separated by the wall portion 12O-W. The wall portion 12O-W forming the hole in the inner shell portion 12I of the nose bridge is inclined from the center of the nose bridge 12 toward the post head 13 as it moves from the outside of the eyeglass frame 1 toward the inside.

[0107] Here, for example, suppose a specified object collides with the inner shell portion 12I of the nose bridge from the negative Y-axis direction toward the positive Y-axis direction. In this case, the nose bridge 12 of the eyeglass frame 1 will deform along with the lens rims 11R, 11L, etc. Specifically, for example, the inner surface of the inner shell portion 12I of the nose bridge will come into contact with the wearer. As described above, the inner shell portion 12I of the nose bridge is formed of a thermoplastic resin elastomer that is softer than the outer shell portion. Therefore, the inner shell portion 12I of the nose bridge deforms before the outer shell portion 12O of the nose bridge. In addition, as described above, the inner shell portion 12I of the nose bridge has a through hole in the vertical direction, so this through hole will deform (collapse), making it easier to deform.

[0108] Accordingly, the presence of the inner shell 12I of the bridge of the nose reduces the impact (especially the impact from the front for the wearer), thus improving the wearer's safety.

[0109] Furthermore, when the wall portion 12O-W of the inner shell portion 12I of the nose bridge is deformed, it will overlap with the multiple wall portions 11RI-W of the adjacent inner shell portion 11RI of the lens ring in the Y-axis direction. As a result, the thickness of the wall portion in the Y-axis direction becomes the sum of the thicknesses of the overlapping wall portions 11RI-W and 12O-W. That is, the inner shell portion 12I of the nose bridge, being a thermoplastic resin rubber elastomer that is softer than the outer shell portion, has room for deformation correspondingly to the sum of the thicknesses of the overlapping wall portions.

[0110] Throughout the area containing the through-hole running vertically, the wall portion can have approximately equally overlapping areas even in the event of deformation. This enhances the wearer's safety.

[0111] The above describes the specific structure of the hole penetrating in the vertical direction of the bridge of the nose 12 and the advantages enjoyed by having this structure.

[0112]

[0113] Below, using Figures 9 to 12 The shape of the hole or bottomed cavity that runs through the vertical direction is described above.

[0114] Figure 9 for Figure 4 The ABCD line combination section view of the glasses is shown.

[0115] like Figure 9 As shown, the hole on the upper edge side 11RI-ST of the inner shell portion 11RI of the lens rim 11R has a bottom 11RI-B. Accordingly, for forces in the XY plane, not only does the wall portion 11RI-W of the upper edge side 11RI-ST of the inner shell portion 11RI of the lens rim 11R hinder deformation, but the bottom 11RI-B also hinders deformation. As a result, for slight forces (such as inertial forces generated by the wearer's movement), the deformation of the inner shell portion 11RI, and thus the lens rim 11R, becomes slight, thereby improving the wearing comfort.

[0116] Furthermore, the hole on the upper edge 11RI-ST (positive Z-axis side) of the inner shell portion 11RI of the lens rim 11R is a recessed hole with a bottom extending from the upper side of the upper edge 11RI-ST towards the lower side, forming a bottom (bottom 11RI-B) on the lower side (negative Z-axis side). Therefore, when worn, multiple bottomed holes can be observed in the positive Z-axis direction. This improves the aesthetic design of the eyeglass frame 1 while also providing the aforementioned advantages of enhanced wearing comfort.

[0117] In addition, the hole on the upper edge 11RI-ST (positive side of the Z-axis) is recessed from the upper side of the upper edge 11RI-ST toward the lower side. Therefore, when the eyeglass frame 1 is made using the upper mold and the lower mold, demolding can be easily carried out, and the manufacturing of the eyeglass frame can be made easier.

[0118] In addition, it enables the lightweighting of the inner shell of the lens ring and reduces the amount of material used in the inner shell, which helps to reduce costs.

[0119] like Figure 9 As shown, the lens ring 11L has a structure that is basically the same as that of the lens ring 11R, and has the advantages that come with having this structure.

[0120] Figure 10 for Figure 5 The image shows a cross-sectional view of the glasses along the EE line.

[0121] like Figure 10 As shown, the hole on the lower edge side 11RI-SB of the inner shell portion 11RI of the lens rim 11R has a bottom 11RI-B. Accordingly, for forces in the XY plane, not only does the wall portion 11RI-W of the lower edge side 11RI-SB of the inner shell portion 11RI of the lens rim 11R hinder deformation, but the bottom 11RI-B also hinders deformation. As a result, for slight forces (such as inertial forces generated by the wearer's movement), the deformation of the inner shell portion 11RI and thus the lens rim 11R becomes slight, thereby improving the wearing comfort.

[0122] Furthermore, the hole on the lower edge 11RI-SB (negative Z-axis side) of the inner shell portion 11RI of the lens rim 11R is a recessed hole with a bottom extending from the lower edge 11RI-SB towards the upper side, forming a bottom (bottom 11RI-B) on the upper side (positive Z-axis side). Therefore, when worn, multiple bottomed holes can be observed from the negative Z-axis direction. This improves the aesthetic design of the eyeglass frame 1 while also providing the aforementioned advantage of enhanced wearing comfort.

[0123] In addition, the hole on the lower edge side 11RI-SB (negative side of the Z-axis) is recessed from the lower side of the lower edge side 11RI-SB toward the upper side. Therefore, when the eyeglass frame 1 is made using the molds of the upper mold and the lower mold, it also has the effect of making demolding easier and making the manufacturing of the eyeglass frame easier.

[0124] In addition, it enables the lightweighting of the inner shell of the lens ring and reduces the amount of material used in the inner shell, which helps to reduce costs.

[0125] like Figure 10 As shown, the lens ring 11L has a structure that is basically the same as that of the lens ring 11R, and has the advantages that come with having this structure.

[0126] Figure 11 for Figure 5 The image shows a cross-sectional view of the glasses along the FF line.

[0127] Figure 12 for Figure 7 The image shows a cross-sectional view of the glasses along the GG line.

[0128] like Figure 11 and Figure 12 As shown, the hole in the inner temple shell 14RI of the temple 14R is a through hole running vertically. This allows for a lighter inner temple shell and reduces the amount of material used, thus lowering costs. Furthermore, since sebum and other dirt tend to accumulate in the hole of the temple 14R, which comes into contact with the wearer's head, it is easier to clean than a hole with a bottom edge.

[0129] In addition, such as Figure 9 As shown, the hole provided on the inner shell portion 12I of the nose bridge 12 is a through hole in the vertical direction. Accordingly, it is possible to achieve a lightweight design of the inner shell portion 12I of the nose bridge and reduce the amount of material used in the inner shell portion 12I of the nose bridge, which helps to reduce costs.

[0130] <Hardness of the outer shell and inner shell>

[0131] Preferably, the Shore A hardness of the outer casing (e.g., the outer casing of the lens rim 11, bridge 12, headstock 13, and temple 14) is 100 to 150. More preferably, the Shore A hardness of the outer casing is 120.

[0132] Here, if the Shore hardness of the outer shell is less than 100, it is difficult to maintain the shape of the eyeglass frame, which is undesirable. Furthermore, if the Shore hardness of the outer shell is greater than 150, the eyeglass frame's deformability decreases, meaning the frame itself becomes difficult to deform and cannot adequately absorb impact, leading to breakage, which is also undesirable. Additionally, when the Shore hardness of the outer shell is greater than 150, it is difficult to remove the molded eyeglass frame 1 from the mold during injection molding, which is also undesirable.

[0133] For example, the thermoplastic resin rubber elastomer used as the outer shell can be of the TED-602 specification (a product of Dongguan Changsheng New Material Co., Ltd.). The TED-602 specification thermoplastic resin rubber elastomer contains styrene-ethylene-butene-styrene, naphthenic oil, polypropylene, calcium carbonate, and antioxidants.

[0134] Furthermore, preferably, the Shore A hardness of the inner shell portion (e.g., the inner shell portion of the lens rim 11, bridge 12, and temple 14) is 30 to 70 degrees. More preferably, the Shore A hardness of the inner shell portion is 55.

[0135] If the Shore hardness of the inner shell is less than 30, it is difficult to maintain the shape of the inner shell of the eyeglass frame, which is not ideal. Conversely, if the Shore hardness of the inner shell is greater than 70, it is difficult to ensure cushioning performance and adequately absorb impact, which is also not ideal.

[0136] Furthermore, if the Shore hardness of the inner shell is less than 30, the inner shell may peel off from the outer shell. That is, as the adhesion between the outer and inner shells decreases, the strength of the inner shell itself also decreases. Consequently, the likelihood of the inner shell breaking during molding, leading to incomplete molding or a decrease in yield, increases.

[0137] For example, the thermoplastic resin rubber elastomer used as the inner shell can be of specification P801-55A32 (a product of Dongguan Changsheng New Material Co., Ltd.). The thermoplastic resin rubber elastomer of specification P801-55A32 contains styrene-ethylene-butene-styrene, naphthenic oil, polypropylene, calcium carbonate, and antioxidants.

[0138] Furthermore, preferably, the friction of the inner shell portion (e.g., the inner shell portion of the lens rim 11, bridge 12, and temple 14) is greater than that of the outer shell portion (e.g., the outer shell portion of the lens rim 11, bridge 12, temple 13, and temple 14). Due to the increased friction of the inner shell portion, the wearing comfort is improved. Additionally, because the friction between the inner shell portion and the wearer is stronger than the friction between the outer shell portion and the specified object, the effect of improving the wearer's safety is enhanced in situations involving impacts such as collisions with the specified object.

[0139] The above describes one embodiment of the present invention. The present invention is not limited to the above embodiment. Modifications and improvements within the scope of achieving the purpose of the present invention are considered to be included in the present invention.

[0140] in addition, Figures 1 to 12 The shape of the eyeglass frame 1 shown is merely an example to achieve the purpose of the present invention and is not particularly limited.

[0141] (Modified Example)

[0142] (1) In the above embodiment, an example is shown in which a plurality of holes through the vertical direction are formed in the inner shell portions 14RI and 14LI of the temple portion 14, but it is not limited thereto. For example, a plurality of bottomed holes may be provided in the inner shell portions 14RI and 14LI of the temple to replace the plurality of holes through the vertical direction. In addition, a plurality of bottomed holes and a plurality of holes through the vertical direction may coexist.

[0143] (2) In the above embodiment, an example is shown in which a hole is formed in the inner shell portion 12I of the nose bridge 12 in the vertical direction, but it is not limited to this. For example, a bottom hole may be provided in the inner shell portion 12I of the nose bridge instead of a hole in the vertical direction.

[0144] (3) In the above embodiment, an example is shown in which multiple bottom holes are formed in the inner shell portions 11RI and 11LI of the lens ring 11, but it is not limited to this. For example, multiple holes that penetrate in the vertical direction can be provided in the inner shell portions 11RI and 11LI of the lens ring instead of multiple bottom holes. In addition, multiple bottom holes and multiple holes that penetrate in the vertical direction can coexist.

[0145] (4) In the above embodiment, the eyeglass frame 1 is integrally molded using two thermoplastic resin elastomers of different hardness through two-color injection molding. The inner shell is molded using a thermoplastic resin elastomer that is softer than the outer shell, but it is not limited to this. For example, the eyeglass frame can also be integrally molded using three or more thermoplastic resin elastomers.

[0146] In summary, the eyeglass frame to which this invention is applicable only needs to have the following configuration, and can be implemented in various ways. (1)

[0148] That is, the eyeglass frame (eyeglass frame 1) to which the present invention is applied has a pair of lens rims (lens LR and LL) for fixing lenses (lens LR and LL), a bridge (bridge 12) connecting the pair of lens rims, and temples (temples 14R and 14L) connected to the lens rims (lens LR and LL) via posts (posts 13R and 13L, respectively). In this eyeglass frame,

[0149] The eyeglass frame includes an outer shell portion and an inner shell portion, the inner shell portion being softer than the outer shell portion, and the inner shell portion being located on at least a portion inside the outer shell portion.

[0150] The inner shell portion includes temple inner shell portions (14RI and 14LI, respectively), which are located on the inner side of the temple of the outer shell portion.

[0151] Therefore, suppose a specified object impacts the temple of the eyeglasses in the left-right direction (X-axis direction). In this case, the temples of the eyeglass frame will deform. The inner shell of the temple is formed of a thermoplastic resin elastomer that is softer than the outer shell. Therefore, after contact with the wearer, the inner shell of the temple deforms before the outer shell.

[0152] In this way, the presence of the inner temple shell reduces impact and improves the wearer's safety. In addition, in normal circumstances other than when an impact is applied, the shape is maintained by the presence of the outer temple shell, which is harder than the inner temple shell, thus improving the wearing comfort. (2)

[0154] Multiple holes or bottomed openings are formed in the inner shell of the temple along the length direction (approximately the Y-axis direction) of the temple, extending in the vertical direction (Z-axis direction).

[0155] Therefore, the temples are more easily deformed due to deformation (collapse) through multiple holes in the inner shell. In other words, the presence of the inner shell reduces impact and improves the wearer's safety. (3)

[0157] Regarding the inner shell portion of the temple, the wall portion (e.g., wall portion 14RI-W) existing between adjacent holes or openings tilts from the front to the rear (towards the positive Y-axis) as it moves from the outside of the eyeglass frame toward the inside (in 14R, toward the positive X-axis direction).

[0158] Accordingly, the inner surface of the temple inner shell generates friction against the wearer after contact. Furthermore, the wall portion, which slopes from the outside of the frame towards the inside and from the front to the back, deforms relative to the inner surface of the temple inner shell in a manner that causes the temple to move in the negative Y-axis direction.

[0159] Therefore, it prevents the lens rim and lens from contacting the wearer, and if contact does occur, it reduces the pressure applied to the wearer, thereby improving the wearer's safety. (4)

[0161] Multiple holes or openings are provided in a non-contact area, which is the area in the inner shell of the temple that does not come into contact with the head of the wearer wearing the eyeglasses frame.

[0162] Therefore, the wearer will not come into contact with the unevenness caused by the multiple holes running through the vertical direction, thus avoiding any discomfort in wearing the garment; in other words, the wearing experience is improved. (5)

[0164] The inner shell portion further includes a nose bridge inner shell portion, which is disposed on the inner side of the nose bridge of the outer shell portion.

[0165] Therefore, due to the presence of the inner shell of the bridge of the nose, the impact (especially the impact from the front for the wearer) is reduced, and the wearer's safety is improved. (6)

[0167] A hole or a bottom hole is formed in the inner shell of the bridge of the nose.

[0168] Therefore, the inner shell of the nose bridge is more prone to deformation due to multiple holes or bottom holes (causing it to collapse). In other words, the presence of the inner shell of the nose bridge reduces impact and improves the wearer's safety. (7)

[0170] The inner shell portion further includes a lens ring inner shell portion, which is disposed inside the upper and lower edges of the lens ring of the outer shell portion.

[0171] Accordingly, for example, suppose an impact is applied to the inner shell of the lens rim from the front, relative to the wearer. In this case, the lens rim and other parts of the eyeglass frame will deform. Specifically, for example, the inner surface of the inner shell of the lens rim will come into contact with the wearer. As mentioned above, the inner shell of the lens rim is formed of a thermoplastic resin elastomer that is softer than the outer shell of the lens rim. Therefore, the inner shell of the lens rim deforms before the outer shell of the lens rim. In addition, as mentioned above, multiple holes or multiple bottomed holes are formed in the inner shell of the lens rim, so these multiple holes or multiple bottomed holes will deform (collapse), thus making it easier to deform.

[0172] Therefore, due to the presence of the inner shell of the lens rim, the impact is reduced, and the wearer's safety is improved. (8)

[0174] Multiple bottomed holes are formed in the inner shell of the lens ring along the left-right direction.

[0175] Therefore, due to the presence of multiple bottom holes, the entire lens rim is deformed, thus improving the wearer's safety. (9)

[0177] The hole on the upper edge (positive Z-axis side) of the inner shell of the lens ring has a bottom (bottom 11RI-B) on the lower side (negative Z-axis side).

[0178] The hole on the lower edge side (negative Z-axis side) of the inner shell of the lens ring has a bottom (bottom 11RI-B) formed on the upper side (positive Z-axis side).

[0179] Accordingly, for slight forces (such as inertial forces generated by the wearer's movement), the deformation of the inner shell of the lens rim and thus the lens rim becomes slight, thereby improving the wearing comfort. (10)

[0181] The Shore hardness (A) of the outer shell is between 100 and 150.

[0182] Therefore, the shape of the eyeglass frame can be maintained. Furthermore, the Shore hardness of the outer shell maintains the frame's flexibility in deformation. That is, it allows for the deformation of the frame itself and the absorption of impact, while also reducing the risk of breakage. (11)

[0184] The Shore hardness (A) of the inner shell is between 30 and 70.

[0185] This allows the shape of the inner shell of the eyeglass frame to be maintained. Furthermore, it ensures cushioning performance; that is, it can effectively absorb impact while maintaining its shape. (12)

[0187] The pile head has a recess that is concave from the outside to the inside.

[0188] Therefore, regardless of whether the deformation is applied in the direction of the closed temple end (the rear end from the wearer's perspective) or the open temple direction, it can be flexibly deformed without breaking.

[0189] Explanation of reference numerals in the attached figures

[0190] 1: Eyeglass frame; 11, 11R, 11L: Lens rim; 11LI, 11RI: Inner shell of lens rim; 11LO, 11RO: Outer shell of bridge; 12: Bridge; 12I: Inner shell of bridge; 12O: Outer shell of bridge; 13, 13R, 13L: Tips; 14, 14R, 14L: Temples; 14RI, 14LI: Inner shell of temples; 14RO, 14LO: Outer shell of temples.

Claims

1. An eyeglass frame, characterized in that, It has: a pair of lens rims for securing the lens; a bridge connecting the pair of lens rims; and temples connected to the lens rims via post heads. The eyeglass frame includes an outer shell portion and an inner shell portion, the inner shell portion being softer than the outer shell portion, and the inner shell portion being located on at least a portion inside the outer shell portion. The inner shell portion includes a temple inner shell portion, which is disposed on the inner side of the temple of the outer shell portion. Multiple holes or bottomed openings are formed in the inner shell of the temple along the length of the temple, extending vertically. These holes or bottomed openings are designed to deform and collapse when the inner shell of the temple comes into contact with the wearer. Regarding the inner shell portion of the temple, the wall portion existing between adjacent holes or openings slopes from the front to the rear as it moves from the outside of the eyeglass frame toward the inside. The wall portion is configured to overlap with the adjacent wall portion when the hole or cavity is deformed and crushed. Near the end of the post head side in the region where the plurality of holes or the plurality of bottomed openings are provided in the inner shell of the temple, the length of the inner surface of the inner shell of the temple in the longitudinal direction is longer than the length of the surface that contacts the outer shell of the temple in the longitudinal direction, and reaches the region of the post head.

2. The eyeglass frame according to claim 1, characterized in that, Multiple holes or openings are provided in a non-contact area, which is the area in the inner shell of the temple that does not come into contact with the head of the wearer wearing the eyeglasses frame.

3. The eyeglass frame according to claim 1, characterized in that, The inner shell portion further includes a lens ring inner shell portion, which is disposed inside the upper and lower edges of the lens ring of the outer shell portion.

4. The eyeglass frame according to claim 3, characterized in that, Multiple bottomed holes are formed in the inner shell of the lens ring along the left-right direction.

5. The eyeglass frame according to claim 4, characterized in that, The hole on the upper edge side of the inner shell of the lens ring has a bottom on the lower side. The hole on the lower edge of the inner shell of the lens ring has a bottom on the upper side.

6. The eyeglass frame according to claim 1, characterized in that, The inner shell portion further includes a nose bridge inner shell portion, which is disposed on the inner side of the nose bridge of the outer shell portion.

7. The eyeglass frame according to claim 6, characterized in that, A hole or a bottomed cavity is formed in the inner shell of the bridge of the nose that runs through the vertical direction.

8. The eyeglass frame according to claim 1, characterized in that, The Shore hardness (A) of the outer shell is between 100 and 150 degrees.

9. The eyeglass frame according to claim 1, characterized in that, The Shore hardness (A) of the inner shell is between 30 and 70.

10. The eyeglass frame according to claim 1, characterized in that, The pile head has a recess that is concave from the outside to the inside.

11. An eyeglass frame, characterized in that, It has: a pair of lens rims for securing the lens; a bridge connecting the pair of lens rims; and temples connected to the lens rims via post heads. The eyeglass frame includes an outer shell portion and an inner shell portion, the inner shell portion being softer than the outer shell portion, and the inner shell portion being located on at least a portion inside the outer shell portion. The inner shell portion includes a temple inner shell portion, which is disposed on the inner side of the temple of the outer shell portion. The inner shell portion further includes a lens ring inner shell portion and a nose bridge inner shell portion. The lens ring inner shell portion is located inside the upper and lower edges of the lens ring in the outer shell portion, and the nose bridge inner shell portion is located inside the nose bridge in the outer shell portion. Multiple bottomed holes are formed in the inner shell of the lens ring along the left-right direction. These multiple bottomed holes are designed to deform and collapse when the inner shell of the lens ring comes into contact with the wearer. The inner shell of the nose bridge has a hole or a bottomed hole that extends vertically and is deformed and crushed when it comes into contact with the wearer. The hole on the upper edge side of the inner shell of the lens ring has a bottom on the lower side. The hole on the lower edge side of the inner shell of the lens ring has a bottom formed on the upper side. The wall portion existing between adjacent holes in the inner shell of the lens ring is configured such that, when the holes in the inner shell of the lens ring are deformed and crushed, it overlaps with the adjacent wall portion. The wall portion separating the hole or the bottomed opening in the inner shell of the nose bridge is configured such that it tilts from the center of the nose bridge toward the head of the eyeglasses as it moves from the outside of the frame toward the inside, and overlaps with the wall portion of the adjacent inner shell of the lens rim when the hole or the bottomed opening in the inner shell of the nose bridge is deformed and crushed. The inner shell of the temple has multiple holes or bottomed openings formed along the length of the temple, which extend vertically and are designed to deform and collapse when the inner shell of the temple comes into contact with the wearer. Regarding the inner shell portion of the temple, the wall portion existing between adjacent holes or openings in the inner shell portion of the temple slopes from the front to the rear as it moves from the outside of the eyeglass frame toward the inside. The wall portion of the inner temple shell is configured such that, when the hole or opening in the inner temple shell is deformed and crushed, it overlaps with the wall portion of the adjacent inner temple shell. Near the end of the post head side in the region where the plurality of holes or the plurality of bottomed openings are provided in the inner shell of the temple, the length of the inner surface of the inner shell of the temple in the longitudinal direction is longer than the length of the surface that contacts the outer shell of the temple in the longitudinal direction, and reaches the region of the post head.

12. The eyeglass frame according to claim 11, characterized in that, The Shore hardness (A) of the outer shell is between 100 and 150 degrees.

13. The eyeglass frame according to claim 11, characterized in that, The Shore hardness (A) of the inner shell is between 30 and 70.

14. The eyeglass frame according to claim 11, characterized in that, The pile head has a recess that is concave from the outside to the inside.

Images