JP2009251060A - Flat folding type spectacle frame capable of being stored in thin case, and flat folding type rimless spectacles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To flatten the form when not in use, there is little fear of damage or damage due to shock or vibration in the case, and it is smart and innovative thin deformation type To provide spectacle frames and foldable rimless spectacles.
SOLUTION: A lens rim that forms a substantially flat front frame by being connected side by side in a plane symmetrically by a bridge, a pair of left and right flexible temples made of a tough elastic material, and this temple And a hinge member that is hinged to the rim, and when the temple is rotated in the opposite chord direction on the hinge member side, the left and right temples are arranged on the outer chord side of the lens rim on the hinge connecting side and The opposite string side is surrounded and folded so as to be substantially flush with the front frame.
[Selection] Figure 3

Description

  The present invention is an improvement of a foldable spectacle frame and rimless spectacles, and more specifically, it can be folded compactly in a very flat state when not in use, and is damaged by a shock or vibration in the case when dropped. The present invention also relates to a flat foldable spectacle frame and a flat foldable rimless spectacle that can be stored in a thin case with a novel design.

  As is well known, glasses that are used whenever necessary, such as reading glasses, are required to be carried in a bag or a pocket of clothes, and therefore it is necessary to make them as compact as possible when not in use.

  However, the glasses with a general structure in which the left and right temples are folded behind the front frame inevitably become thicker and bulky because the temples are folded behind the front frame.

  Therefore, in the past, there has been known a technique for thinning a temple by folding it up and down the front frame as described in <Patent Document 1>. However, in a structure in which the temples are attached to both sides of the left and right rims, When the lens is widened, a load in the warp direction is generated on the bridge, and the lens angle with respect to the pupil is slightly changed, so that it is difficult to properly maintain the facing relationship between the lens and both eyes.

  On the other hand, in the prior art, by rotating the wiping part hinged to the upper part of the front frame as described in <Patent Document 2> from the horizontal direction to the vertical direction, the temple is folded at the hinge portion, There has also been proposed a technique for reducing the size of glasses when not in use as a flat form surrounding a temple.

  However, in the prior art according to <Document 2>, since the rigidity of the wisdom part is high, when the temple is pushed outward when worn, the load concentrates on the hinge part that connects the front frame and the wisdom part. Because it is easy to cause, it is necessary to reinforce the wisdom parts by connecting them between the hinges, and it is necessary to make this connection part have a solid structure that does not bend, so the design is crafted and refined The atmosphere was not obtained.

  Moreover, in the above prior art, it was necessary to provide the temple with a refracted modern in order to increase the stability of the mounted state. However, when the temple is folded, the modern protrudes forward of the front frame. The shape could not be achieved.

In addition, in the conventional spectacles according to <Document 2>, since the periphery of the front frame is surrounded by the wisdom part and the temple, when the spectacles are dropped, the inner front frame and the lens are placed by the outer wisdom part and the temple. However, when the glasses are housed in the case, the glasses will rattle and the front frame and hinges There was a problem that it was easily damaged.
JP 2004-163486 A (page 1-5, FIG. 1-2) Japanese Patent Laid-Open No. 48-17728 (page 1-2, FIG. 1-6)

  The present invention has been made in view of the above-described problems, and the object of the present invention is to flatten the form when not in use, and to reduce the impact and vibration in the case when dropped. Another object of the present invention is to provide a thin deformable spectacle frame and foldable rimless spectacles which are less likely to be damaged or damaged due to the above, and which are smart and innovative in design.

  Means employed by the present inventor for solving the above-described problems will be described with reference to the accompanying drawings.

That is, the present invention includes a lens rim 2, 2 that forms a substantially flat front frame F that is connected side by side in a plane symmetrically by a bridge 1; a pair of left and right elongated rims made of a tough elastic material. A flexible temple 3, 3; and a hinge member 4, 4 that hinges the temple 3, 3 to the rim 2, 2;
The hinge members 4 and 4 are arranged near the center of the upper chord 21 or the lower chord 22 of the rims 2 and 2, and the temples 3 and 3 are hinged to the hinge members 4 and 4, respectively. By linking, the hinged rim 2 is rotatably supported in the direction of the string (22 or 21) opposite to the string (21 or 22), and the temples 3 and 3 are supported in the direction of the string on the opposite side ( 22 or 21), the outer string 23 side of the rim 2 on the hinge connection side and the opposite string (22 or 21) are curved so as to be surrounded,
When these temples 3 and 3 are positioned toward the rim upper chord 21 or lower chord 22 on the hinge member 4 side, the left and right lens rims of the front frame F are elastically sandwiched between the wearer's left and right heads. 2 and 2 can be point-supported in a face-to-face parallel state on both eyes of the wearer,
On the contrary, when these temples 3 and 3 are rotated in the direction of the opposite chord (22 or 21) on the hinge member 4 side, the left and right temples 3 and 3 are located on the outer chord 23 side of the lens rim 2 on the hinge connecting side. Further, the present invention is characterized in that it is folded so as to surround the opposite string (22 or 21) side so as to be substantially flush with the front frame F.

Further, in order to solve the above-mentioned problems, the present invention provides lenses 5 and 5 that constitute a substantially flat front frame F by connecting them side by side in a symmetrical manner by a bridge 1 in addition to the above means as necessary. A pair of left and right elongated flexible temples 3 and 3 made of a tough elastic material; and a hinge member 4 and 4 for hinge-connecting the temples 3 and 3 to the rims 2 and 2 ,
The hinge members 4 and 4 are arranged in the vicinity of the center of the upper chord 51 or the lower chord 52 of the lenses 5 and 5, and the temples 3 and 3 are hinged to the hinge members 4 and 4, respectively. By connecting, the lens 5 that is hinged is supported so as to be rotatable in the direction of the string (52 or 51) opposite to the string (51 or 52), and the temples 3 and 3 are supported in the direction of the string on the opposite side ( 52 or 51), the outer string 53 side and the opposite string (52 or 51) of the lens 5 on the hinge connection side are curved and molded so as to surround the lens.
When these temples 3 and 3 are positioned in the direction of the lens upper chord 51 or lower chord 52 on the hinge member 4 side, the left and right heads of the wearer are elastically clamped to the left and right lenses 5 of the front frame F. -The point 1 can be supported by the bridge 1 in a face-to-face parallel state on both eyes of the wearer.
On the contrary, when these temples 3 and 3 are rotated in the direction of the opposite chord (22 or 21) on the hinge member 4 side, the left and right temples 3 and 3 are connected to the outer chord 53 of the lens 5 on the hinge connecting side. It is possible to adopt a technical means that surrounds the side and the opposite string (52 or 51) side so as to be folded so as to be substantially flush with the front frame F.

  Moreover, in order to solve the said subject, in addition to the said means as needed, this invention can employ | adopt the technical means of producing the flexible temple 3 from the engineering plastic which has flexibility and bending elasticity. .

  Further, in order to solve the above-described problems, the present invention forms a cam-shaped convex bent portion 41 for restraining the idle rotation of the flexible temple 3 on the hinge member 4 in addition to the above means as necessary. It is possible to adopt a technical means in which the temple 3 can be rotated by pressing the temple base end portion 31 against the convex bent portion 41 and elastically deforming it through the convex bent portion 41 in the turning operation. it can.

  Further, in order to solve the above-mentioned problems, the present invention forms a contact surface 31a with the hinge member 4 at the base end portion 31 of the flexible temple 3 in a mountain-shaped cross section in addition to the above means as necessary. A technical means for sliding the slope of the contact surface 31a on the convex curved portion 41 of the hinge member 4 to allow the temple base end portion 31 to be gradually pressurized in the outward direction at the time of rotating operation 3; Can be adopted.

  Further, in order to solve the above-mentioned problems, the present invention employs technical means that, in addition to the above-described means, if necessary, the flexible temples 3 and 3 are compressed to form a curved shape that can be accommodated in the case C. be able to.

  In the present invention, a hinge member is provided at the upper chord or lower chord of the left and right rims of the front frame produced in a flat plate shape, and a flexible temple produced by bending an elastic material is hinge-connected to the hinge member, and this temple is further attached. When the hinge member is rotated in the direction of the string on the opposite side of the string connected to the hinge member, the outer string side of the rim on the hinge connection side and the string on the opposite side can be surrounded by a curved temple. It becomes possible to arrange them on the same plane, and this makes it possible to compactly transform the glasses frame when not in use into a very flat state.

  Moreover, since the temple can be elastically clamped to the wearer's left and right heads, the glasses can be stably worn even without a bent modernity. Since the modern does not protrude forward when the frame is surrounded by the temple, the spectacle frame after compact deformation can be made flatter.

  In addition, since the temple mounting position is moved from the end of the rim to the vicinity of the center of the upper chord or lower chord, the warping load applied to the bridge can be greatly reduced. It can be held in an opposed side-by-side state.

  Also, when the temples are expanded outward when wearing glasses, the temples themselves do not bend and the load does not concentrate on the hinge part, so it is not necessary to reinforce the connection between the temples and design freely. It is also possible to improve fashionability as a novel and smart impression design.

  On the other hand, when the glasses are housed in the case, the temple surrounding the front frame also plays a role of absorbing the shock caused by the rattling of the glasses in the case. There is little fear of being damaged, and in particular, if the curved temple is housed in a stretched state, the rattling of the glasses itself can be prevented.

  Therefore, according to the present invention, it is possible to provide a spectacle frame that can be accommodated in a thin case that is not bulky even when it is carried in a non-use state and is put in a pocket or a bag, has high designability, and has few breakdowns. The value is high.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described in more detail with reference to the drawings specifically shown as follows.

“Example 1”
Embodiment 1 of the present invention is shown in FIGS. In the figure, what is indicated by reference numeral 1 is a bridge, and what is indicated by reference numeral 2 is a lens rim. What is indicated by reference numeral 3 is a flexible temple, and what is indicated by reference numeral 4 is a hinge member.

  In the first embodiment, the lens rims 2 and 2 arranged side by side symmetrically by the bridge 1 are connected in a plane to form a substantially flat front frame F, and in the vicinity of the center of the upper chord 21 of the rim 2 and 2. Are provided with hinge members 4, 4 for hinge-connecting a pair of left and right elongated flexible temples 3, 3 made of a tough elastic material (see FIG. 1).

  Then, the base ends 31 and 31 of the flexible temples 3 and 3 are hingedly connected to the hinge members 4 and 4, respectively, so that both the temples 3 and 3 are rotatably supported in the direction of the lower chord 22 of the rim 2 as shown in FIG. The state shown in FIG. 2A can be transformed to the state shown in FIG.

  The flexible temples 3 and 3 are formed in a curved shape capable of surrounding the outer chord 23 side and the lower chord 22 of the upper chord rim 2 when rotated in the lower chord direction 22 (see FIGS. 3 and 4). ).

  Accordingly, the left and right temples 3 and 3 and the front frame F can be arranged on substantially the same plane, so that the glasses frame when not in use can be compactly deformed into a very flat state.

  On the other hand, when the flexible temples 3 and 3 are positioned in the direction of the rim upper chord 21, as shown in FIG. 5, the flexible temples 3 and 3 can be elastically sandwiched between the left and right heads of the wearer. Therefore, even if there is no bent modern, the glasses can be stably attached, and the bent modern can be omitted, and the spectacle frame after compact deformation can be made flatter.

  In addition, when mounting, the position of the temple 3 is not the end of the rim but near the center of the upper chord 21, so that the load in the warping direction on the bridge 1 is greatly reduced and the front frame is placed on the wearer's eyes. Since the left and right lens rims 2 and 2 of F can be point-supported in a face-to-face parallel state, the functionality of the glasses can be exhibited well.

  As for the attachment positions of the hinge members 4 and 4 on the left and right lens rims 2 and 2, if they are too close to the bridge 1, the mounting state becomes unstable, and it is necessary to adjust the position within such a range.

  In addition, after the glasses are removed, the flexible temples 3 and 3 return to their original curved shape due to their own shape recoverability, so that the temple folding operation becomes unnecessary.

  On the other hand, in the state where the front frame F is surrounded by the flexible temples 3 and 3, even when the glasses are dropped, the front frame F is protected from direct impact by both temples 3, so that the lens is not easily damaged. It has become.

  Further, when the glasses are accommodated in the case C as shown in FIG. 6, the temples 3 and 3 surrounding the front frame F absorb the shock caused by the rattling of the glasses in the case C, and the front frame Damage to F and hinge members 4 and 4 can be prevented.

  In addition, if the flexible temples 3 and 3 are pushed and shrunk to have a curved shape that can be stored in the case C, it is possible to prevent the rattling of the glasses itself while the temples 3 and 3 are stretched in the case. It is effective.

  In Example 1, the flexible temple 3 is made of a synthetic resin material having flexibility and bending elasticity (in this example, “polyamide resin (PA)”). When used, there is no fear that the front frame F will be damaged even if it hits the temple 3 strongly.

  Further, in the first embodiment, a cam-shaped convex bent portion 41 that functions as a stopper is formed on the hinge member 4 to prevent the flexible temples 3 and 3 from spinning around, and the temple base end portion in the turning operation of the temple 3. The temples 31 and 3 are elastically deformed by being pressed against the convex bent portion 41 and passed over the convex bent portion 41 so that both the temples 3 and 3 can be rotated up and down (see FIG. 7).

  Then, the contact surface 31a with the hinge member 4 at the base end portion 31 of the flexible temple 3 is formed in a mountain-shaped cross section, and the inclined surface portion of the contact surface 31a is slid on the convex curved portion 41 of the hinge member 4. The base end portion 31 can be gradually pressurized in the outward direction to facilitate the turning operation of the flexible temple 3.

  In addition, regarding the design of the flexible temples 3 and 3, since the temples themselves are not bent when the temples 3 and 3 are expanded to the outside when wearing glasses, the load does not concentrate on the hinge members 4 and 4. The temples 3 and 3 do not need to be connected in a reinforcing manner, and can be designed freely.

“Example 2”
Next, a second embodiment of the present invention will be described with reference to FIG. In the figure, what is indicated by reference numeral 5 is a lens. In the second embodiment, hinge members 4 and 4 are provided in the vicinity of the center of the upper chord 51 of the left and right lenses 5 and 5 connected by the bridge 1, and the proximal ends of the flexible temples 3 and 3 are provided on these hinge members 4 and 4, respectively. A rimless spectacle that can be made compact in a flat form by rotatably attaching the portion 31 to the lower chord 52 side is configured (see FIG. 8).

  In addition, since the rimless glasses can surround the outer chord 53 and the lower chord 52 from the upper chord 51 to which the hinge member 4 is attached by the flexible temples 3 and 3 which are curved, the lenses 4 and 4 are damaged by an impact or the like. It has a difficult structure.

“Example 3”
Next, Embodiment 3 of the present invention will be described with reference to FIGS. In Example 3, a metal material having flexibility and flexural elasticity is used as the material of the flexible temples 3 and 3, so that there is no fear of UV deterioration as in a resin product, and it can be used for a long time. A possible spectacle frame F can be produced.

  It should be noted that the metal material used for the flexible temples 3 and 3 may be a shape memory alloy such as β-titanium or Ni-Ti alloy, which has the property of firmly returning to its original shape even if it is widened outward. preferable.

  In the third embodiment, the flexible temples 3 and 3 are connected by a band-like connecting member 32 so as to integrate them, so that the left and right temples 3 and 3 can be rotated simultaneously.

  Incidentally, since the connecting member 32 that connects the flexible temples 3 and 3 is not for reinforcement, it is not necessary to adopt a robust structure that impairs the design.

  The present invention is generally configured as described above. However, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the claims. For example, The hinge members 4 and 4 are disposed at the lower chords 22 and 22 of the lens rims 2 and 2 and the lower chords 52 and 52 of the lenses 5 and 5 as shown in FIGS. The same effect can be obtained by reversing the moving direction.

  The material of the flexible temple 3 is not limited to polyamide resin as long as it has the necessary flexibility and bending elasticity, but other engineering plastics such as polycarbonate (PC), and composite materials of synthetic resin material and metal material. Etc. can be employed, and any of them is within the technical scope of the present invention.

  In recent years, demand for reading glasses has increased due to the progress of an aging society. Among them, reading glasses are often used for carrying, unlike correction glasses that are always worn, so they are not bulky even when placed in a pocket or bag. A structure that can be made compact to an extent is desired.

  Under such circumstances, the thin deformable spectacle frame and the flat foldable rimless spectacles of the present invention are useful techniques that can not only make the spectacles thinner but also improve the functionality and design. Therefore, the demand in the market is large and its industrial utility value is very high.

It is a whole perspective view showing the spectacles frame in Example 1 of this invention. It is a state explanatory drawing showing the hinge connection structure of the temple in Example 1 of this invention. It is a whole perspective view showing the spectacles frame in Example 1 of this invention. It is a whole front view showing the spectacles frame in Example 1 of this invention. It is a state explanatory drawing showing the wearing state of the spectacles frame in Example 1 of the present invention. It is a whole perspective view showing the spectacles frame accommodated in the case in Example 1 of this invention. It is a state explanatory view seen from the AA 'section showing the hinge connection structure of the temple in Example 1 of the present invention. It is a whole front view showing the rimless spectacles in Example 2 of this invention. It is a whole front view showing the spectacles frame in Example 3 of this invention. It is a whole perspective view showing the spectacles frame in Example 3 of this invention. It is the whole front view showing the spectacles frame in the modification of this invention. It is a whole front view showing the rimless spectacles in the modification of this invention.

Explanation of symbols

1 Bridge 2 Lens rim
21 First quarter
22 Lower string
23 Outer string 3 Flexible temple
31 Base end
31a Contact surface
32 Connecting member 4 Hinge member
41 Convex curve 5 Lens
51 First String
52 Lower string
53 Outer string F Front frame C Case

Claims (6)

A lens rim 2, 2 which forms a substantially flat front frame F connected side by side in a plane symmetrically by a bridge 1; a pair of left and right flexible temples 3, 3 made of a tough elastic material; Comprising hinge members 4, 4 for hinge-connecting the temples 3, 3 to the rims 2, 2;
The hinge members 4, 4 are disposed in the vicinity of the center of the upper chord 21 or the lower chord 22 in the rims 2, 2;
The temples 3 and 3 are respectively connected to the strings (22 or 21) opposite to the strings (21 or 22) in the rim 2 hinged by connecting the base ends 31 and 31 to the hinge members 4 and 4, respectively. The temples 3 and 3 themselves are supported so as to be rotatable in the direction, and when the temples 3 and 3 themselves are rotated in the opposite chord direction (22 or 21), the outer chord 23 side of the rim 2 on the hinge connecting side and the aforementioned Curved so as to surround the opposite string (22 or 21),
When these temples 3 and 3 are positioned in the direction of the rim upper chord 21 or the lower chord 22 on the hinge member 4 side, the left and right heads of the wearer are elastically clamped to the left and right sides of the front frame F. The lens rims 2 and 2 can be point-supported in a face-to-face parallel state on both eyes of the wearer.
On the contrary, when these temples 3 and 3 are rotated in the opposite chord (22 or 21) direction on the hinge member 4 side, the left and right temples 3 and 3 are outside chords 23 of the lens rim 2 on the hinge connecting side. A flat foldable spectacle frame that can be housed in a thin case that surrounds the side and the opposite string (22 or 21) side and can be folded so as to be substantially flush with the front frame F. Lenses 5 and 5 constituting a substantially flat front frame F connected side by side in a plane symmetrically by the bridge 1; a pair of left and right elongated flexible temples 3 and 3 made of a tough elastic material; Comprising hinge members 4, 4 for hinge-connecting the temples 3, 3 to the rims 2, 2;
The hinge members 4, 4 are disposed in the vicinity of the center of the upper chord 51 or the lower chord 52 in the lenses 5, 5.
The temples 3 and 3 have a string (52 or 51) opposite to the string (51 or 52) in the lens 5 that is hinged by connecting the base end portions 31 and 31 to the hinge members 4 and 4, respectively. The temples 3 and 3 themselves are supported so as to be rotatable in the direction, and when the temples 3 and 3 themselves are rotated in the opposite chord direction (52 or 51), the outer chord 53 side of the lens 5 on the hinge connecting side and the aforementioned Curved so as to surround the opposite string (52 or 51),
When these temples 3 and 3 are positioned in the direction of the lens upper chord 51 or lower chord 52 on the hinge member 4 side, the left and right heads of the wearer are elastically clamped to the left and right sides of the front frame F. The lenses 5 and 5 can be point-supported by the bridge 1 in a face-to-face state on both eyes of the wearer,
On the contrary, when these temples 3 and 3 are rotated in the direction of the opposite chord (22 or 21) on the hinge member 4 side, the left and right temples 3 and 3 are connected to the outer chord 53 of the lens 5 on the hinge connecting side. Flat rimless spectacles that can be stored in a thin case that surrounds the side and the opposite string (52 or 51) side and folds so as to be substantially flush with the front frame F.   3. A flat foldable spectacle frame or a flat foldable rimless that can be stored in a thin case according to claim 1 or 2, wherein the flexible temple 3 is made of an engineering plastic having flexibility and bending elasticity. glasses.   On the hinge member 4, a cam-shaped convex bent portion 41 that prevents the flexible temple 3 from rotating freely is formed. On the other hand, when the temple 3 is rotated, the temple base end portion 31 is pressed against the convex bent portion 41 and elastically deformed. The flat folding spectacle frame or flat that can be stored in the thin case according to any one of claims 1 to 3, characterized in that the temple 3 can be rotated by passing it over the convex curved portion 41. Foldable rimless glasses.   A contact surface 31a with the hinge member 4 at the proximal end portion 31 of the flexible temple 3 is formed in a mountain-shaped cross section, and the inclined surface portion of the contact surface 31a on the convex curved portion 41 of the hinge member 4 when the temple 3 is rotated. The flat foldable spectacle frame or the flat foldable rimless that can be accommodated in the thin case according to claim 4, wherein the temple base end portion 31 can be gradually pressed outward in the sliding direction. glasses. 6. The flat foldable glasses that can be stored in a thin case according to any one of claims 1 to 5, wherein the flexible temples 3 and 3 are compressed into a curved shape that can be stored in the case C. Frame or flat foldable rimless glasses.

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