JP2007041427A - Spectacle frame - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spectacle frame which can be folded and stored compactly and is easily adjusted to a shape fit to the outline of the face of a user while making good use of characteristics of a lightweight raw material and hingeless constitution. <P>SOLUTION: The spectacle frames comprises wire type thin temples with elasticity and nose pads which have inverted U-shape structures and come into contact with the nose. Each nose pad is in a hooked structure having a gap with a bridge and elastic raw materials such as superelastic alloy are used for the temples. Then the temples are hooked to hooked structures of the nose pads when folded, so that the spectacle frame can be stored compactly. One metal material having plasticity is used for the nose pad and then vertical positions and angles of lenses and distances to the face can easily be adjusted in accordance with the user. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a spectacle frame provided with a temple using a superelastic alloy and a nail-shaped nose pad that can be stored when the temple is folded.

  The frame of the glasses is the rim that supports the lens, the bridge that connects the left and right lenses, the nose pad to keep the distance and height between the lens and the nose properly, and the part that hangs on the ear that extends backward from both ends of the lens It is composed of temples. In order to be able to fold the eyeglasses when they are not in use, an opening / closing mechanism called a hinge is usually provided at the joint between the rim and the temple. The following problems are often pointed out for commonly used spectacle frames.

  First, a hinge that allows the rim and temple to be opened and closed, but there is a problem that aging deterioration such as wear and looseness is likely to occur while the glasses are used. There is also a problem that the hinge part is easily damaged when exercising or sleeping while wearing glasses. As means for solving such a problem, inventions relating to hingeless eyeglass temples using an elastic metal or the like at the joint between the rim and the temple are disclosed (for example, see Patent Document 1 and Patent Document 2).

  In addition, materials such as metal and resin are usually used for temples, but if these temples are used to form durable temples, they will always have a certain weight, so glasses will be worn for a long time. There is a problem that the weight is a burden when doing so. Since these materials do not have elasticity and do not easily have a structure that fits the face and head, there is also a problem that they easily come off during exercise and cause damage. In order to solve such a problem, an invention has been disclosed in which a shape memory alloy, a carbon fiber material, or the like that is lightweight and has a certain elasticity is employed as a temple material (for example, Patent Document 3, Patent Reference 4).

Japanese Patent Laid-Open No. 10-39261 JP 2003-255275 A JP-A-6-118348 JP 2001-305490 A

  Although the hingeless eyeglass temples shown in the examples of Patent Document 1 and Patent Document 2 can solve the problems related to hinges that are likely to cause deterioration over time or breakage, the problem of repulsive force such as elastic metal used in the joints Therefore, since it is difficult to fold in a compact manner and thickness often occurs when folded, there is a problem that it is inconvenient for storage when carrying around. Further, when the temple is folded inward even during normal time as in Patent Document 2, there may be a problem that the head is likely to be pressed when worn.

  On the other hand, according to Patent Document 3 and Patent Document 4 in which a shape memory alloy, a carbon fiber material, or the like is used as a temple material, the weight of the spectacle frame can be reduced, but the compactness of the eyeglass frame can be realized due to the characteristics of the elastic material similar to the above. Since it is difficult to fold it in, it is easy to cause the problem of inconvenient storage. In addition, when a lightweight material is used, stability at the time of wearing tends to be inferior, so it becomes a problem to fit the face and head at the time of wearing. However, in Patent Document 4, for example, the shape of a support member for a bridge or temple Since the lens is fixed, it seems that it is not easy to adjust the lens and the frame to fit the contour of the user's face.

  The present invention has been made to address these problems, and can be folded and stored compactly while taking advantage of the characteristics of lightweight materials and hingelessness, and fits the contours of the user's face. It is an object of the present invention to provide a spectacle frame that can be easily adjusted to the shape.

  The present invention for solving such a problem is a spectacle frame including a temple using a superelastic alloy and a saddle-shaped nose pad that can be stored when the temple is folded. From the joint part to the ear hook part, it forms a curve that curves inward after being curved outward with respect to a line perpendicular to the line connecting both ends of the rim. An eyeglass frame characterized by having an upward hook structure that is formed in a connected shape without being separated and has a U-shape when viewed from the side.

  Further, the present invention may be characterized in that a NT superelastic alloy having a diameter of 0.6 to 1.0 mm is used for the temple.

  Further, according to the present invention, a portion of the nose pad attached to the nose is a single wire formed in a metal reverse U shape that does not have superelasticity, or two pieces of metal that do not have superelasticity. A member formed by connecting the above wire rods with other materials into an inverted U-shape may be used.

  As described above, the spectacle frame according to the present invention is configured so that a temple having elasticity in the nose pad portion can be accommodated by forming the nose pad in a bowl shape having an upward hook structure. ing.

  As for the shape of the temple, a hingeless structure is realized by bending outward from the joint with the rim. Further, by curving inward from the portion proceeding toward the ear, the temple can be folded and stored compactly by hooking the concave portion due to the inward curving to the nose-shaped hook structure.

  As for the shape of the nose pad, in addition to being formed into a bowl shape having an upward hook structure and used for hooking and storing a temple, it is formed in a metal inverted U shape having no super elasticity. It is configured so that it can be adjusted to the shape along the nose using a member formed by connecting two or more wires made of metal or non-super-elastic metal with other materials to form an inverted U-shape. By this, it becomes possible to adjust and fix to a shape that fits the shape of the user's nose.

  According to the present invention, there is provided a spectacle frame that can be folded and stored in a compact manner while taking advantage of the characteristics of a lightweight material and hingeless, and that can be easily adjusted to a shape that fits the contour of the user's face. This eyeglass frame is not only easy to fold and carry, but also excellent in terms of comfort and stability. . In particular, it is suitable for a spectacle frame for children where safety is important.

  Embodiments of the present invention will be described below with reference to the drawings. The shape of the spectacle frame described below is an example of the embodiment of the present invention, and the present invention is not limited to the shape of the spectacle frame shown in the drawings.

  FIG. 1 is a perspective view of spectacles using a spectacle frame according to the present invention. 2 to 11 are six views (including supplementary explanatory drawings) showing a normal state of the glasses using the spectacle frame according to the present invention. 12 and 13 are a perspective view and a side view, respectively, when wearing spectacles using the spectacle frame according to the present invention. FIG. 14 is a view showing a state in which the temple is stored in the nose pad portion of the spectacle frame according to the present invention. 15 to 20 are six-side views of the spectacles using the spectacle frame according to the present invention when the temple is stored. FIG. 21 shows an example of an under rim type of eyeglasses using the eyeglass frame according to the present invention. 22 to 24 are diagrams showing a method for adjusting the vertical position of the lens, the angle of the lens, and the distance between the lens and the face at the nose pad portion of the spectacle frame according to the present invention.

  As shown in the perspective view of FIG. 1, the spectacle frame according to the present invention is characterized by comprising a wire-like thin temple having elasticity and a nose pad that contacts the nose with an inverted U-shaped structure. The nose padding has a saddle type structure with a gap between it and the bridge. By using a super elastic alloy for the temple, when the temple is folded, it is hooked on the nose padding type structure and is compact. It becomes possible to store in.

  2 and 3 are front views of the spectacle frame, and FIG. 4 is a rear view. As shown in FIG. 3, the rim 40 that supports the lens 50 is superelasticity at both ends without providing hinges. An alloy temple 10 is joined at the joint 11. The wire-shaped temple 10 is curved from the face to the outside along the temporal region and then to the inside, and then extends downward in the ear hook 13 so as to be curved three-dimensionally as a whole. The nose pad 20 is composed of a single wire rod formed in a reverse U-shape made of metal that does not have superelasticity, which is connected to the lens 50 on the left and right sides, or two or more metal wires that do not have superelasticity. It is composed of members that are connected to each other by covering the wire with other materials such as vinyl and formed in an inverted U-shaped shape, and are in an inverted U-shaped shape that contacts the nose.

  5 to 7 are top views of the spectacle frame, and FIG. 8 is a bottom view. The shape of the temple will be described with reference to FIGS. 6 and 7. Although the temple 10 shown in FIG. 6 is joined to the rim 40 at the joint portion 11, the temple 10 has a structure that curves outward from the extension line of the rim 40 toward the curved portion 12. It is possible to join to the rim 40 without providing the rim. Further, by bending inward toward the bending portion 13, the temple 10 can be attached in a state of being fitted along the temporal region from the upper part of the cheekbone. The ear hook 14 has a shape such that the wire-shaped temple 10 is wrapped around the ear. The ear hook 14 generates an appropriate fit at the time of wearing, and can maintain stability that is difficult to come off.

  FIG. 7 shows the positional relationship between the temple 10 and the rim 40, and the temple 10 has a shape that curves outward at the joint 11 with respect to a line orthogonal to the line connecting both ends of the rim 40. Yes. When viewed from the side of the rim 40, the temple 10 has a structure that is incident on the joint portion 11 at an incident angle of 0 to 90 ° with respect to the rim 40. Since the temple 10 is joined to the rim 40 with such a structure, it is not necessary to provide a special mechanism such as a hinge at the joint 11.

  Further, the temple 10 curved outwardly forms a shape gently curved inward from the upper part of the cheekbone to the part along the temporal region. This inward bending fits from the upper part of the cheekbone to the temporal region at the time of wearing, so that an appropriate fit and stability are produced, and the temple 10 is folded to the nose pad 20 having a bowl-shaped structure. This has the advantage of being easy to hook.

  FIG. 12 is a perspective view of a state in which the spectacle frame is worn, but the inner curved portion fits from the upper part of the cheekbone along the temporal region and is shaped so as to wrap around the ear, When worn, it is more stable than conventional eyeglass frames, and has a structure that can prevent displacement and detachment during exercise.

  A structure for folding and storing the temple 10 will be described with reference to FIG. In the upper part of the spectacle frame, a gap is formed between the nose pad 20 and the bridge 30. When the temple 10 is folded, the temple 10 can be stored compactly by hooking the recessed portion of the curved portion 13 into the gap as in the example of FIG.

  15 to 20 are six views showing an example of a state in which the temple 10 is stored in the nose pad 20. By using the nose pad 20 as an upward saddle structure and using a wire-like superelastic alloy for the temple 10, the temple 10 can be stored compactly as shown in these drawings. As shown in FIGS. 17 and 18, when folded, the shape is almost flat when viewed from above and below, and the thickness can be reduced to about ½ of a general spectacle frame. When the temple 10 can be stored in a flat state in this way, it is convenient to carry and damage to the joint between the temple 10 and the rim 40 is less likely to occur.

  The wire-like temple 10 used in the present invention is made of an NT-based superelastic alloy having a diameter of 0.6 to 1.0 mm in consideration of lightness, appropriate fit, relation to storage structure, and the like. Is preferred. By processing such a material into a wire shape and subjecting it to a heat processing treatment, the shape required in the present invention can be stabilized. It is preferable to use an alloy having a N: T ratio of about 49:51. Or it is good also as using the resin-made wires provided with the elasticity equivalent to such a superelastic alloy.

  The material of the rim 40 is not particularly limited, but for example, a stainless steel or titanium plate having a thickness of about 0.5 to 1.0 mm can be used by laser cutting and bending. In this case, the temple 10 can be joined at the joint 11 by brazing.

  The shape of the rim 40 is not particularly limited as long as the rim 40 has a function of fixing the lens 50. For example, as shown in FIG. 21, the rim 40 is an under rim type that supports the lens 50 from below. It is also possible.

  9 and 10 are left side views of the spectacle frame, and FIG. 11 is a right side view. As shown in each drawing, the temple 10 has a shape that wraps around the back of the ear, and by adjusting the height and position of the nose pad 20, an appropriate fit and stability are produced. be able to. Further, the portion attached to the nose shown as the nose pad 20 in FIG. 10 is curved so as to approach the lens 50 side from the central portion toward the upper portion, so that the temple 10 can be easily stored when folded.

  A method for adjusting the nose pad 20 will be described with reference to FIG. The material used for the nose pad 20 is not particularly limited, but the nose pad 20 is adjusted according to the face and head of the user when purchasing the glasses, and the shape suitable for the use state is fixed. Therefore, it is preferable to use a metal material that can be deformed and does not have superelasticity.

  When viewed from the back, the shape of the nose pad 20 is an inverted U shape as shown in FIG. 4, but when viewed from the side, the U shape has a gap upward as shown in FIG. It is the shape of. The right portion of the U-shaped shape shown in FIG. 10 has a structure in which about 2 cm in the vertical direction fits the nose. On the other hand, the left part of the U-shape is joined to the lens 50 to support the space between the lens and the face. The vertical adjustment unit 21 in FIG. 10 is a portion that is deformed for adjusting the vertical position of the lens 50. The angle adjusting unit 22 is a part that is deformed for adjusting the angle of the lens 50. Further, the distance adjusting unit 23 shown in FIG. 6 is a portion that is deformed for adjusting the distance between the lens 50 and the face.

  FIG. 13 is a side view of the state in which the spectacle frame is mounted. In such a state, the angle at which the nose pad 20 is bent is deformed using a dedicated tool so as to fit the shape of the nose. The vertical position of the lens 50, the angle, and the distance from the face are adjusted. While adjusting these at the nose portion, the position and angle of the nose are adjusted so that when the temple 10 is put on the ear, the temple 10 fits properly to the cheekbones and the temporal region. These adjustments are usually made in accordance with the shape of the user's face when the eyeglasses are purchased, and the adjusted shape of the nose is fixed as it is.

  A method for adjusting the vertical position of the lens 50, the angle of the lens 50, and the distance between the lens 50 and the face of the nose pad 20 will be described with reference to FIGS.

  FIG. 22 is a diagram illustrating a method of deforming the nose pad 20 to adjust the vertical position of the lens. About the up-and-down adjustment part 21 of the nose pad 20, it can adjust so that the lens 50 may be in the up-and-down position suitable for the position of a user's nose and eyes by bending appropriately.

  FIG. 23 is a diagram illustrating a method of deforming the nose pad 20 to adjust the angle of the lens. By appropriately bending the angle adjusting unit 22 of the nose pad 20, the angle of the lens 50 can be adjusted so that the angle is easy to see when the user wears the angle adjusting unit 22.

  FIG. 24 is a diagram illustrating a method of deforming the nosepiece 20 to adjust the distance between the lens and the face. About the distance adjustment part 23 of the nose pad 20, it can adjust so that the distance of the lens 50 and a user's nose and eyes may become an appropriate space | interval by bending appropriately.

It is a perspective view of the spectacles using the spectacles frame concerning the present invention. It is the 1st front view of the spectacles using the spectacles frame concerning the present invention. It is a 2nd front view of the spectacles using the spectacles frame concerning the present invention. It is a rear view of the spectacles using the spectacles frame concerning the present invention. It is the 1st top view of the spectacles using the spectacles frame concerning the present invention. It is a 2nd top view of the spectacles using the spectacles frame concerning the present invention. It is a 3rd top view of the spectacles using the spectacles frame concerning the present invention. It is a bottom view of the spectacles using the spectacles frame concerning the present invention. It is the 1st left view of the spectacles using the spectacles frame concerning the present invention. It is the 2nd left view of the spectacles using the spectacles frame concerning the present invention. It is a right view of the spectacles using the spectacles frame concerning the present invention. It is a perspective view at the time of mounting | wearing of the spectacles using the spectacles frame concerning this invention. It is a side view at the time of wearing of spectacles using a spectacles frame concerning the present invention. It is a figure which shows the state which accommodates a temple in the nose pad part of the spectacles frame concerning this invention. It is a front view at the time of temple accommodation of the spectacles using the spectacles frame concerning the present invention. It is a rear view at the time of temple accommodation of the spectacles using the spectacles frame concerning the present invention. It is a top view at the time of temple accommodation of the spectacles using the spectacles frame concerning the present invention. It is a bottom view at the time of temple accommodation of the spectacles using the spectacles frame concerning the present invention. It is a left view at the time of temple accommodation of the spectacles using the spectacles frame concerning the present invention. It is a right view at the time of temple accommodation of the spectacles using the spectacles frame concerning the present invention. It is an example of the under rim type of the spectacles using the spectacles frame concerning the present invention. It is a figure which shows the method to adjust the up-and-down position of a lens in the nose pad part of the spectacles frame concerning this invention. It is a figure which shows the method of adjusting the angle of a lens in the nose pad part of the spectacles frame concerning this invention. It is a figure which shows the method of adjusting the distance of the lens of the nose pad part of the spectacles frame concerning this invention, and a face.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Temple 11 Joint part 12 Curved part 13 Curved part 14 Ear hook part 20 Nose pad 21 Vertical adjustment part 22 Angle adjustment part 23 Distance adjustment part 30 Bridge 40 Rim 50 Lens

Claims (3)

A spectacle frame with a temple using a super elastic alloy and a saddle-shaped nose pad that can be stored when the temple is folded,
The temple forms a curve that curves inward after being curved outward with respect to a line orthogonal to a line connecting both ends of the rim from the joint with the rim toward the ear hook part,
An eyeglass frame characterized in that the nose pad is formed in a shape in which left and right side portions to be joined to a lens are connected without being separated, and has a U-shaped upward hook structure when viewed from the side.   2. An eyeglass frame according to claim 1, wherein an NT-based superelastic alloy having a diameter of 0.6 to 1.0 mm is used for the temple. In the part attached to the nose of the nose pad, a single wire formed in a metal reverse U-shape that does not have superelasticity, or two or more metal wires that do not have superelasticity are attached to other parts. 3. The spectacle frame according to claim 1 or 2, wherein a member connected with a material and formed into an inverted U shape is used.