Folding Glasses

Abstract

To provide folding glasses that can be folded into an extremely thin shape. [Solution] The folding eyeglasses 100 have left and right front portions 20L, 20R made of sheet metal to which lenses 10L, 10R are fixed, and are provided with a front 20 to which these portions are connected via a first hinge 22C without a screw, and temples 30L, 30R made of sheet metal connected to the left and right ends of the front 20 via second hinges 40L, 40R without a screw, and the temples 30L, 30R are connected to base portions 31L, 31R. , and terminal portions 32L, 32R, which are connected via screw-free third hinges 33L, 33R, and the terminal portions 32L, 32R are configured to be foldable so as to bend downward and overlap with the base portions 31L, 31R in a plan view, and when the first to third hinges are all folded, a four-layer structure is formed in which the front left and right portions 20L, 20R sandwich the folded temples 30L, 30R at the third hinge.

Description

[Technical field]

[0001] The present invention relates to folding glasses, and more particularly to folding glasses that can be folded extremely thinly. [Background technology]

[0002] Some glasses that are worn only occasionally, such as fashion glasses, sunglasses, senior glasses, etc., can be folded for easy carrying. A typical folding pair of glasses is designed by folding the temples in half toward the inside, folding the front in half again, and sandwiching the folded left and right temples between the left and right parts of the front. Summary of the Invention [Problem to be solved by the invention]

[0003] Although conventional folding glasses can be folded to about half the size of the front, the thickness of the front and temples themselves, as well as the thickness of the folded temples, make the glasses thick when folded. For this reason, the storage case for folding glasses needs to be relatively thick, about several centimeters thick, and is bulky when carried around.

[0004] SUMMARY OF THE DISCLOSURE In view of the above problems, the present invention aims to provide folding glasses that can be folded into an extremely thin shape. [Means for solving the problem]

[0005] According to one aspect of the present invention, folding glasses have a front left portion made of sheet metal to which a left lens is fixed, and a front left portion made of sheet metal to which a right lens is fixed, and these portions are connected via a first hinge without a screw, and left and right temples made of sheet metal connected to the left and right ends of the front via a second hinge without a screw, and the left and right temples have a root portion from the base of the front to approximately the center in the extension direction and an end portion from approximately the center to the end, and these portions are connected via a third hinge without a screw, and the end portion is configured to be foldable so that it bends downward and overlaps with the root portion in a planar view, and when the first to third hinges are all folded, the third hinge sandwiches the folded left and right temples between the front left and front right portions, forming a four-layer structure. Effect of the Invention

[0006] According to the present invention, it is possible to realize folding glasses that can be folded into a very thin shape. Therefore, the case for storing the folding glasses can also be made very thin so as not to be bulky when carried around. [Brief description of the drawings]

[0007] [Figure 1] 1 is a perspective view of a pair of folding glasses according to an embodiment of the present invention; [Diagram 2] 1 is a front view of a pair of folding glasses according to an embodiment of the present invention; [Diagram 3] 2 is a diagram showing the structure of a temple of the folding glasses according to an embodiment of the present invention; FIG. [Figure 4] This is a photo showing the ends of the left and right temples folded up. [Diagram 5] This is a photograph of the state shown in Figure 4, with the left and right temples folded further towards the front. [Figure 6] This is a photograph of the glasses in the state shown in Figure 5, with the front folded further to fold the entire glasses. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, the embodiment of the present invention will be described in detail with reference to the drawings as appropriate. However, more detailed description than necessary may be omitted. For example, detailed description of already well-known matters or duplicate description of substantially the same configuration may be omitted. This is to avoid the following description becoming unnecessarily redundant and to facilitate understanding by those skilled in the art. Note that the inventor provides the attached drawings and the following description to enable those skilled in the art to fully understand the present invention, and does not intend to limit the subject matter described in the claims by them. In addition, the dimensions, thickness, detailed shapes, etc. of each member depicted in the drawings may differ from the actual ones.

[0009] 1 is a perspective view of a folding eyeglasses according to an embodiment of the present invention. In this specification, the sagittal, horizontal, and vertical directions of the head when wearing the eyeglasses are defined as the front-back, left-right, and up-down directions of the eyeglasses, respectively.

[0010] <General configuration of glasses> The folding eyeglasses 100 according to this embodiment include a front 20 that fixes a pair of left and right lenses 10L, 10R, and a pair of left and right temples 30L, 30R. The temples 30L, 30R are connected to the front 20 via hinges 40L, 40R at both the left and right ends of the front 20, respectively, and can be folded toward the front 20. Furthermore, as described later, the front 20 can be folded in half from approximately the center, and the left and right temples 30L, 30R can also be folded in half from approximately the center. The lenses 10L, 10R may be so-called non-prescription lenses, in addition to vision correction lenses and light-shielding lenses.

[0011] <Front configuration example> 2 is a front view of a pair of folding glasses according to an embodiment of the present invention. The front 20 is made up of a front left portion 20L and a front right portion 20R.

[0012] The front left part 20L includes a rim 21L to which the lens 10L can be fixed, a left bridge part 22L provided at the upper right end of the rim 21L, and an end piece 23L provided at the upper left end of the rim 21L. The rim 21L, the left bridge part 22L, and the end piece 23L are integrally formed from sheet metal, and the front left part 20L has an overall thin, flat shape. The sheet metal is made of stainless steel or titanium, and has a thickness of about 0.1 mm (same below).

[0013] The end piece 23L is formed by bending a sheet metal at a substantially right angle. A hole 24L for connecting the temple 30L is formed in the portion bent at a substantially right angle. In addition, a nose pad 25L is provided below the left bridge portion 22L and approximately in the center of the right end of the rim 21L.

[0014] The front right part 20R is symmetrical to the front left part 20L. That is, the front right part 20R includes a rim 21R to which the lens 10R can be fixed, a right bridge part 22R provided at the upper left end of the rim 21R, and an end piece 23R provided at the upper right end of the rim 21R. The rim 21R, the right bridge part 22R, and the end piece 23R are integrally formed from sheet metal, and the front right part 20R has an overall thin, flat shape.

[0015] The end piece 23R is formed by bending a sheet metal at a substantially right angle. A hole 24R for connecting the temple 30R is formed in the portion bent at a substantially right angle. In addition, a nose pad 25R is provided below the right bridge portion 22R and approximately in the center of the left end of the rim 21R.

[0016] The left bridge portion 22L of the front left portion 20L and the right bridge portion 22R of the front right portion 20R are butted together and connected to each other by a connecting part 22C to form a bridge 22 that connects the rim 20L and the rim 20R.

[0017] More specifically, the left bridge part 22L and the right bridge part 22R each have a three-pronged comb-like tip, with the central comb tooth being wider than the comb teeth on either side and its tip being bent into a hook shape. The connecting part 22C is a sheet metal member of a size that can be hidden behind the bridge 22, for example, with a vertical width of about 5 mm, which is the same as the left bridge part 22L and the right bridge part 22R, and a horizontal width of about 5 mm, and holes are formed on both the left and right sides to insert the central comb teeth at the tips of the left bridge part 22L and the right bridge part 22R.

[0018] The left bridge part 22L and the right bridge part 22R each sandwich the connecting part 22C between the central comb tooth and the comb teeth on both sides from the front and back, and the central comb tooth is inserted into the hole in the connecting part 22C and its hook-shaped tip is engaged with the hole. The width of the front left part 20L and the front right part 20R, i.e., the length from the end of the left bridge part 22L and the right bridge part 22R to the folded end of the end piece 23L and the end piece 23R, is approximately 69 mm.

[0019] With this configuration, the connecting part 22C functions as a screw-free hinge that utilizes the elasticity of sheet metal. That is, the front 20 can be folded by folding from the butt joint of the bridge left part 22L and the bridge right part 22R so that the front left part 20L and the front right part 20R overlap each other. In particular, when the front 20 is folded, the bridge left part 22L and the bridge right part 22R do not come into contact with each other, but a gap is formed by the width of the connecting part 22C.

[0020] <Temple configuration example> 3 is a diagram showing the structure of the temples of the folding eyeglasses according to one embodiment of the present invention. The temples 30L, 30R are composed of root parts 31L, 31R extending from the base of the front 20 to the approximate center in the extension direction, and end parts 32L, 32R extending from the approximate center to the end, and these parts are connected to each other by connecting parts 33L, 33R. End pieces made of resin or the like can be attached to the end parts 32L, 32R as necessary.

[0021] The root portions 31L, 31R, the end portions 32L, 32R, and the connecting parts 33L, 33R are all made of sheet metal. The connecting parts 33L, 33R are clip-shaped parts made by folding a sheet metal in half. That is, the clip-shaped connecting parts 33L, 33R clamp both sides of the root portions 31L, 31R and the end portions 32L, 32R from the outside to connect these parts. The connecting parts 33L, 33R shown in the figure are before being folded.

[0022] In this way, the temples 30L, 30R are generally thin and flat, approximately the thickness of a metal sheet.

[0023] The vertical width of the front end of the base portions 31L, 31R is approximately 6 mm, which is the same as the vertical width of the end portions of the end pieces 23L, 23R. The length of the base portions 31L, 31R is approximately 65 mm, which is slightly shorter than the width of the front left portion 20L and the front right portion 20R, which is 69 mm.

[0024] The front end of the base portion 31L, 31R is trident-shaped, with the central comb teeth wider than the other comb teeth and its tip bent into a hook shape. The temples 30L, 30R sandwich the end pieces 23L, 23R from the front and back between the central comb teeth and the other comb teeth, and the central comb is inserted into the holes 24L, 24R and its hook-shaped tip is engaged in the holes 24L, 24R. With this configuration, the hinges 40L, 40R are formed without screws, which connect the front 20 and the temples 30L, 30R only by the engagement configuration between the temples 30L, 30R and the front 20, utilizing the elasticity of the sheet metal.

[0025] The roots 31L and 31R are tapered, and the vertical width of the central tip is approximately 5 mm. The central tips of the roots 31L and 31R are tridentated, with the lower teeth wider than the other teeth, the central teeth protruding longer than the other teeth, and the upper teeth narrower than the other teeth in both width and length. The lower ends of the lower teeth are chamfered.

[0026] The vertical width of the distal end portion 32L, 32R at the approximate center is approximately 5 mm, which is the same as the vertical width of the distal end portion 31L, 31R at the approximate center. The distal end portion 32L, 32R has a protrusion at the approximate center tip portion, the lower portion of which protrudes from the base end portion. The end of the protrusion is chamfered, and is formed into a smooth curve, especially from the end to the lower side.

[0027] The approximately central tip of the root portion 31L, 31R and the approximately central tip of the end portion 32L, 32R are connected to each other by the connecting parts 33L, 33R. More specifically, the connecting parts 33L, 33R are riveted to sandwich the approximately central tip of the root portion 31L, 31R and the approximately central tip of the end portion 32L, 32R from both sides so as not to catch on the base end of the approximately central tip of the end portion 32L, 32R, in a state in which the lower comb teeth of the root portion 31L, 31R and the protruding portion of the end portion 32L, 32R are in close contact with each other and the tip of the central comb tooth of the root portion 31L, 31R contacts the side surface and extends to the base end of the approximately central tip of the end portion 32L, 32R.

[0028] The comb teeth on the lower side of the root portions 31L, 31R are fixed with rivets at two points (points indicated by circles in the figure), so that the root portions 31L, 31R cannot move with respect to the connecting parts 33L, 33R. On the other hand, the protruding parts of the end portions 32L, 32R are fixed with rivets at one point (points indicated by circles in the figure), and further, because the connecting parts 33L, 33R are not hooked on the base end of the tip portion on the approximately central side, the end portions 32L, 32R can rotate with respect to the connecting parts 33L, 33R, i.e., the root portions 31L, 31R, about the rivet as a rotation axis.

[0029] When the end portions 32L, 32R are rotated, the tip of the protrusion pushes up the central comb tooth at the approximately central tip of the base portions 31L, 31R, applying stress to the comb tooth. With this structure, the connecting parts 33L, 33R function as a screw-free hinge that utilizes the elasticity of the sheet metal of the central comb tooth at the approximately central tip of the base portions 31L, 31R. The end portions 32L, 32R are configured to be foldable downward so that they overlap the base portions 31L, 31R in a plan view.

[0030] <Folding example> Figure 4 is a photograph of the state where the ends of the left and right temples are folded. Figure 5 is a photograph of the state where the left and right temples are further folded toward the front from the state of Figure 4. Figure 6 is a photograph of the state where the front is further folded from the state of Figure 5 to fold the entire eyeglasses.

[0031] When folding the folding eyeglasses 100, first, as shown in FIG. 4, the end portions 32L, 32R of the temples 30L, 30R are bent downward to fold the temples 30L, 30R in half.

[0032] Next, as shown in Fig. 5, the temples 30L, 30R folded in half are folded toward the front 20. Since the length of the base portions 31L, 33R is slightly shorter than the width of the front left portion 20L and the front right portion 20R, when the temples 30L, 30R folded in half are folded toward the front 20, a slight gap is secured between the folded portions of the temples 30L, 30R.

[0033] Finally, as shown in Fig. 6, the front 20 is folded in half. At this time, a gap is provided between the opposing front left part 20L and front right part 20R by the width of the connecting part 22C, and the temples 30L, 30R folded in half are accommodated in the gap, forming a four-layer structure in which the temples 30L, 30R folded in half are sandwiched between the front left part 20L and the front right part 20R. Combined with the fact that the front left part 20L, the front right part 20R, and the temples 30L, 30R are made of sheet metal, the folding eyeglasses 100 can be folded to an extremely thin thickness of approximately 10 mm at the thickest part.

[0034] As described above, the embodiment has been described as an example of the technology in the present invention. For this purpose, the attached drawings and detailed description have been provided. Therefore, among the components described in the attached drawings and detailed description, not only the components essential for solving the problem but also components that are not essential for solving the problem in order to illustrate the above technology may be included. Therefore, just because those non-essential components are described in the attached drawings or detailed description, it should not be immediately determined that those non-essential components are essential. In addition, since the above-mentioned embodiment is intended to illustrate the technology in the present invention, various modifications, substitutions, additions, omissions, etc. may be made within the scope of the utility model registration claims or their equivalents. [Explanation of symbols]

[0035] 100 Folding Glasses 10L Left lens 10R Right lens 20 Front 21L Front left part 21R Front right part 22C Connecting part (first hinge) 40L, 40R Hinge (Second hinge) 30L, 30R Temple 31L,31R Root part 32L,32R terminal part 33L, 33R connecting parts (third hinge)

Claims

[Claim 1] A folding pair of glasses, a front having a front left part made of sheet metal to which a left lens is fixed and a front left part made of sheet metal to which a right lens is fixed, the parts being connected via a first hinge without a screw; and left and right temples made of sheet metal connected to the left and right ends of the front via second hinges without screws, The left and right temples have a root portion extending from the base of the front to approximately the center in the extension direction and a terminal portion extending from the approximately center to the end, and these portions are connected via a third hinge without a screw, and the terminal portion is configured to be bent downward and foldable so as to overlap the root portion in a plan view, When the first to third hinges are all folded, the third hinge forms a four-layer structure in which the left and right temples folded are sandwiched between the front left portion and the front right portion. The folding glasses are characterized by:

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