JPH04109723U - After the glasses frame - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the position of eyeglass frames in which the position of the frame can be adjusted steplessly, the adjustment can be made simply by loosening the adjustment screw, and shear stress is not concentrated on the adjustment screw. provide. [Structure] Fixing tubes 4 and 7 having through-holes 3 are provided on the rim 2 and temple 5, respectively, and a pair of tapered holding surfaces 8 are provided on the inner peripheral surfaces of the fixing tubes 4 and 7 with diameters increasing toward the opening direction. A pair of connecting members 9 and 10 are provided which have two tapered clamping pieces 11 in close contact with the holding surface 8. The adjustment screws 14 inserted into the through holes 3 of 4 and 7 were screwed into the screw holes 13 of the clamping pieces 11 of the other connecting member 10 and fixed.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an eyeglass frame whose angle and position relative to the rim can be adjusted.

0002

[Conventional technology]

Figures 3(A) and 3(B) show 100 conventional models of this type. No. 050). 100 is a protrusion 102 provided on the rim 101 and a protrusion 102 on the temple 103 side. A supporting portion 104 is provided. The protrusion 102 is connected to the adjustment hole 105 of the support part 104. The dimensions are set so that it can be slid inward. Further, the protrusion 102 has an adjustment screw 10. 6 screw holes 107 are provided. Furthermore, a plurality of shaft holes 108 are provided in the support portion 104. It is written.

0003 In the device 100 configured in this way, the protrusion 102 is inserted into the adjustment hole 105. At the same time, screw the adjustment screw 106 inserted into the shaft hole 108 into the screw hole 107. and tighten it to connect and fix the protrusion 102 and the support part 104. Also, the adjustment screw Loosen and pull out 106, slide the protrusion 102, and insert it into another shaft hole 108. 100 is its entire length, that is, the protrusion from the rim 101. The amount is adjusted, and fitting suitable for the user of the glasses 109 can be performed.

0004 FIG. 4(A) shows another conventional example (Utility Model Publication No. 56-5053). rim 20 An adjustment hole 201 is provided on the side surface of the 0, and a shaft hole 2 that communicates with the adjustment hole 201 is provided. 03 is provided. Also, the part 204 is slidably inserted into the adjustment hole 201. A plurality of screw holes 205 are provided in parallel.

[0005] Insert the shaft 204 configured in this way into the adjustment hole 201, and then into the shaft hole 203. Screw the adjusted screw 207 into the screw hole 205 and tighten it, and then tighten the rim 200 and 04 is fixed. Also, once loosen and remove the adjustment screw 207, then remove the adjustment screw 204. If you slide the adjustment screw 207 into the different screw hole 205, the protrusion of 204 will be removed. You can adjust the amount.

[0006]

[Problem that the idea aims to solve]

However, the above conventional example has the following problems. The shaft holes 108, 203 and the screw holes 107, 205 are made to correspond to each other. Since the amount of protrusion and position of 4 is adjusted, adjustment can only be made in stages. follow Therefore, it is insufficient to provide an optimal fitting condition for the user. Since the screw holes 107 and 205 are provided in the screw holes 102 and 204 themselves, the adjustment screws 106, 207 must be completely removed from the screw holes 107, 205 before adjustment can be made. However, the work is troublesome. Adjustment screws 106, 207 are screwed perpendicularly to the sliding direction of holes 102, 204. Since the adjustment screws 106 and 207 are screwed in, when an external force is applied to the adjustment screws 102 and 204, Shear stress is concentrated at As a result, adjustment screws 106 and 207 may become fatigued and damaged. There is a risk.

[0007] On the other hand, with conventional general eyeglass frames, one type of glasses comes in several ready-made sizes. was prepared. However, there are individual differences in the shape of the user's head and face, so conventionally Techniques for bending the temples and adjusting the angle of inclination of the temples relative to the front We have been pursuing better fitting through techniques.

[0008] Originally, the size of eyeglass frames was determined by the distance between both ears (bending points), and the distance between both temples. It is calculated based on three points: the distance between the two eyes, and the distance between the centers of each eye when looking at a long distance. It will be done. The shape of the human head is such that the distance between the temples is shorter than the distance between both ears. is normal. However, for example, people whose temples are extremely protruding to the side, etc. Fitting (because eyeglass frames are made to fit the shape of a normal human head) ) Conventional fitting technology had its limitations. If you are a user like the one above, When the distance between the temples of the eyeglass frame is increased, the focal position of the lens and The center of the eye is misaligned, making it impossible for the user to properly correct his or her vision. In other words We do not offer eyeglass frames that fit every user's face width without even a slight error. I can say that it wasn't. We dare to offer a wider range of smaller size variations. If we try to meet consumer needs by offering a wide variety of new eyeglass frames, Manufacturers are required to design, manufacture, and manage the inventory of many parts for the It was a huge burden.

[0009] Next, let's talk about glasses for severe nearsightedness, which have thicker lenses. The cross section is concave, with the center of the lens being thinner and the edges of the lens being extremely thick. this lens If you use a The glasses frame has an undesirable shape in terms of appearance, such as causing a complex due to myopia. .

0010 To overcome this condition, a thin line is carved on the outer surface of the rim parallel to the rim. A method that uses the illusion of making the lens appear thinner, and a method that uses the illusion of making the lens appear thinner. By cutting the lens 300 along line B in Fig. 4, the thickness of the rim can be actually reduced. methods have been implemented. Furthermore, the wall thickness of the lens shown in line A in Figure 4 is relatively thin. The drastic method of cutting at the lowest point was also implemented, and the result of this last method was a strong A situation has arisen in which lenses for myopia are smaller than regular glasses, and this In order to connect two smaller lenses and connect the lenses and temples, It also required a wide chiya bridge that protruded to the sides.

[0011] Finally, glasses for children need to be tailored to the characteristics of the child's facial shape. It was. In general, children's eyes tend to be closer to the center of the face compared to the width of the face, such as between the temples. There is. The lens position is adjusted to the eyes that are close to the center, so Just like glasses for severe nearsightedness, a wide gap is required to connect the lenses and temples. It was said that

0012 In addition, as children grow up, the width of their faces, such as the distance between their temples, increases. Glasses frames that have a larger face width to match the growth of children during their developmental period. Purchasing multiple copies of the product placed an economic burden on consumers.

[0013] This idea is to solve the above problem, and it is possible to adjust the position steplessly. In addition to being able to make adjustments simply by loosening the adjustment screw, the The purpose of this product is to provide an eyeglass frame that does not concentrate shear stress. Ru.

[0014]

[Means to solve the problem]

In order to achieve the above purpose, this invention connects a fixed tube with a through hole to the rim and temple. A pair of tapered holes are provided on the inner circumferential surface of the fixed tube, each with a diameter increasing toward the opening direction. and two tapered clamping pieces that are in close contact with the holding surface. A pair of connecting members are provided, and the fixed cylinder is connected through the shaft hole of the clamping piece of one of the connecting members. Screw the adjustment screw inserted into the through hole into the screw hole of the clamping piece of the other connecting member to secure it. Ta.

[0015] In addition, a fixed tube made of a shape memory material with a circular adjustment hole is attached to the rim and temple. A connecting member having two pins that are respectively provided and fitted into the adjustment holes is provided.

[0016]

[Effect]

The function of this device based on the above configuration is that when the adjustment screw is tightened, The clamping piece is in close contact with the holding surface of the fixed cylinder with a predetermined pressure, and the frictional resistance between the two is It is therefore held in place relative to the rim.

[0017] In addition, by simply loosening the adjustment screw to a certain extent, the above frictional resistance is eliminated and the fixed cylinder and The holding piece can rotate freely around the adjustment screw. External force is applied to the fixed tube. Then, this external force is transmitted to the clamping piece, but the adjustment screw is inserted into the shaft hole of the clamping piece of the connecting member. Because it is inserted into the screw hole, it moves together with the clamping piece, reducing shear stress. Concentration does not occur.

[0018] Furthermore, another effect based on the above structure is that the fixed cylinder is usually in pressure contact with the pin, and its Positioning with respect to the other rim is done by frictional resistance. Also, change the fixed tube. The diameter expands due to its shape memory property just by heating to the normal temperature, and the pin of the connecting member and the fixed tube The frictional resistance between the pin and the fixed tube is eliminated, and the pin and the fixed cylinder can freely rotate relative to each other. Further more Additionally, since there are no adjustment screws, there is no concentration of shear stress.

[0019]

【Example】

Next, the present invention will be explained based on FIGS. 1 and 2. Figures 1 (A), (B), and (C) are An example is shown. (A) is an exploded perspective view showing the main parts of the eyeglass frame to which the present invention is applied. It is a diagram. A side end of the rim 2 holding the lens 1 has a vertical through hole 3. The fixed tube 4 on the other side is fixed by brazing, while the tip of the temple 5 is connected through a hinge 6. The other fixed cylinder 7 is provided. A vertical through hole 3 is also formed in this fixed cylinder 7. There is. The inner circumferential surface of the fixed cylinder 4 is provided in the opening direction of the through hole 3, that is, in the vertical direction. A pair of tapered holding surfaces 8 are formed with diameters increasing toward. In addition, the fixed cylinder 7 A pair of holding surfaces 8 similar to this are also formed on the inner peripheral surface.

[0020] Reference numerals 9 and 10 denote a pair of connecting members, and these connecting members 9 and 10 are tightly attached to the holding surface 8. A tapered clamping piece 11 is provided at both ends of the arm 12a. Ru. The clamping piece 11 of the upper connecting member 9 is provided with a shaft hole 12, while the lower connecting member 9 is provided with a shaft hole 12. A screw hole 13 is provided in the clamping piece 11 of the member 10. Then, the adjustment screw 14 is It is inserted from the shaft hole 12 of the connecting member 10 on the other side, and the lower part is inserted through the through hole 3. The connecting members 9 and 10 and the fixed cylinder 4 are screwed into the screw hole 13 of the connecting member 10. 7 is tightened and fixed. In this way, part 15 of the present invention is constructed. .

[0021] Next, the operation of the first embodiment will be explained. First, if the adjustment screw 14 has been tightened, In this case, the clamping pieces 11 of the connecting members 9 and 10 are held in a predetermined position with respect to the holding surfaces 8 of the fixed cylinders 4 and 7. They are stuck together under pressure. Therefore, there is frictional resistance on the contact surface between the holding surface 8 and the clamping piece 11. For example, as shown in FIG. 1(B), the connecting members 9 and 10 are It is held and fixed at a position at a predetermined angle E. Also, the side of the temple 5 relative to the through hole 3 The amount of protrusion in the direction is set to D.

[0022] Then, by slightly loosening the adjustment screw 14, the frictional resistance between the holding surface 8 and the clamping piece 11 is eliminated. As a result, the clamping piece 11 and the fixed cylinders 4 and 7 are in a relatively rotatable state. Therefore, the association For example, when the connecting members 9 and 10 are rotated by a predetermined angle in the direction of the arrow as shown in FIG. 1(B), If both adjustment screws 14 are tightened again, the connecting members 9, 10 and and temple 5 are retained. In this case, the angle G between the connecting members 9, 10 and the rim 2 is It is larger than the angle E in Fig. 1(B), and the protrusion amount H is smaller than the protrusion amount D. It has become. Therefore, the distance from the other temple (not shown) is narrower than in (B). In addition to being adjusted closely, temple 5 is moved back away from rim 2. This means that it has been adjusted to the correct position.

[0023] In this way, in the present invention, the adjustment screw 14 is slightly loosened and the position 15 is set. The adjustment is completed by a simple operation of just adjusting and then tightening the adjusting screw 14. Ma In addition, since both the clamping piece 11 and the holding surface 8 are formed in a tapered shape, the fixed cylinder 4 , 7 and the clamping piece 11 can be set arbitrarily. Therefore, for rim 2 The position of the grip 15 can be adjusted steplessly, making it ideal for all facial shapes of the user. fitting. Furthermore, the adjustment screw 14 connects the pair of connecting members 9, 1 Since it is incorporated in the clamping piece 11 of 0, external force in the radial direction is applied to the fixed cylinders 4 and 7. However, this external force is absorbed by the connecting members 9, 10 themselves and the adjusting screw 14 integrally in the radial direction. , that is, it is absorbed by moving in the horizontal direction in the figure, so the shear is applied to the adjustment screw 14. There is no concentration of stress and it has excellent durability.

[0024] 2(A) and 2(B) show the second embodiment. In FIG. 2(B), the rim 2 and the tension For the pull 5, fixed cylinders 21 and 22 each having a circular adjustment hole 20 are provided. It is fixed by brazing. These fixed cylinders 21 and 22 are adjusted when heated to the transformation temperature. A shape memory member subjected to shape memory treatment such that the hole 20 expands in diameter, that is, a shape memory composite. Made of gold (nickel-titanium, copper, etc.), shape memory resin, etc. Fixed cylinder 21, 2 The second adjustment hole 20 is set to have a uniform inner diameter.

[0025] The fixed cylinder 22 has a notch 23 formed on the side surface, and the notch 23 has a temple. 5 is rotatably connected. In addition, 24 connects the fixed cylinders 21 and 22. This connecting member 24 connects an arm 25 and an end of the arm 25. It consists of planar circular pins 26 and 27 provided in the. And one pin 26 is fixed The other pin 27 is fitted into the adjustment hole 20 of the tube 21, but the other pin 27 is fitted into the adjustment hole 20 of the fixed tube 21. 20 into the shaft hole 28 of the temple 5. Here, the inside of the shaft hole 28 is The diameter is set larger than the outer diameter of the pin 27. Chi29 is configured as above has been done.

[0026] Next, the operation of the second embodiment will be explained. Normally, the pins 26 and 27 fit into the adjustment hole 20. In addition, the dovetail 29 is fixedly held at a predetermined position relative to the rim 2. and, When the fixed tubes 21 and 22 are heated to the transformation temperature, they expand in diameter due to the shape memory effect and are fixed. Since the cylinders 21 and 22 and the pins 26 and 27 are in a relatively rotatable state, the connecting member 2 After adjusting the position of 4, the adjustment work is completed by reducing the diameter of the fixed cylinders 21 and 22 again. Ru. Therefore, the position adjustment work (25) is easy.

[0027] Moreover, since both the adjustment hole 20 and the pins 26 and 27 have a circular planar shape, the above-mentioned adjustment Adjustment work can be performed steplessly. Furthermore, since there is no adjustment screw, there is no stress due to external force. There is no concentration of power.

[0028] Note that the fixed tubes 21 and 22 are made of a nickel-titanium alloy with excellent corrosion resistance. If you keep it in place, it will not rust due to sweat, etc., and its durability will be further improved.

[0029]

[Effect of the idea]

Since this invention is constructed as described above, the position adjustment can be done easily. It can be performed steplessly, and the optimal fitting can be performed according to the user's facial shape. . In addition, even when external force is applied, there is no concentration of shear stress on the adjustment screw, making it durable. Improves durability.

[Brief explanation of drawings]

FIG. 1 (A) is an exploded perspective view showing the main parts of the first embodiment;
(B) and (C) are schematic plan views showing later adjustment positions of the same embodiment.

FIG. 2 (A) is an exploded perspective view showing the main parts of the second embodiment;
(B) is a perspective view of the same embodiment in an assembled state.

FIG. 3A is a perspective view of a first conventional example, and FIG. 3B is an exploded perspective view of the same conventional example.

FIG. 4(A) is an exploded perspective view of a second conventional example, and FIG. 4(B) is a plan view showing a conventional general lens shape.

[Explanation of symbols]

2 rim 3 Through hole 4, 7, 21, 22 Fixed cylinder 5 Temple 8 Holding surface 9.10,24 Connecting member 11 Clamping piece 12 Shaft hole 13 Screw hole 14 Adjustment screw 20 Adjustment hole 26, 27 pin

Claims (2)

[Scope of utility model registration request] 1. A fixed cylinder having a through hole is provided in each of the rim and the temple, and a pair of tapered holding surfaces whose diameter increases toward the opening is formed on the inner peripheral surface of the fixed cylinder, and
A pair of connecting members each having two tapered clamping pieces that come into close contact with the holding surface is provided, and an adjustment screw inserted into a through hole of the fixed tube through the shaft hole of the clamping piece of one connecting member is connected to the other connecting member. After fixing the glasses frame by screwing it into the screw hole of the clamping piece. 2. An eyeglass frame in which fixing tubes made of a shape memory material having circular adjustment holes are provided on the rim and temples, respectively, and a connecting member having two pins fitted into the adjustment holes is provided.