JPH0310491Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an eyeglass frame whose opening angle can be adjusted so that the eyeglass frame fits the wearer when the eyeglass frame is worn.

[Conventional technology]

In this type of conventional eyeglass frame, the lens frame and the temple are connected by a hinge. This hinge is composed of a hinge metal fitting on the ball frame side and a hinge metal fitting on the temple side, and the fixing part at one end of these hinge metal fittings is fixed to the ball frame and the temple, respectively, and the mounting part is provided at the other end of each hinge metal fitting. The connecting holes are rotatably connected by screws or the like, and the fixing part and the mounting part of these hinge fittings are integrally formed.

[Problem that the invention attempts to solve]

However, in the above-mentioned glasses frame, since the opening angle of the temples is constant, the number of people who can fit this glasses frame is limited, and in order for other people to fit it, it is necessary to
It is necessary to manufacture many types of eyeglass frames with different distances between the temples, resulting in a large number of products in small quantities, which increases manufacturing costs. Also, even if we manufacture many types of eyeglass frames,
Since the wearer cannot adjust the fit to the wearer in a stepless manner, there may be cases where the wearer cannot adjust the fit finely.

[Means for solving problems]

In view of the above-mentioned circumstances, this invention allows the interval between the ear hooks of the temples to be adjusted steplessly.The specific means is that the hinge fitting on the ball frame side is located inside the ball frame at right angles to the ball frame. A fixed part fixed to the ball frame having a guide hole in the direction and a female thread formed in a direction perpendicular to the ball frame, an insertion part that can be inserted and removed into the guide hole of the fixed part, and a connecting hole with the temple side hinge fitting. and a mounting portion provided with a machine screw that is screwed into the female thread.

[Effect]

According to the above means, when the machine screw and the female screw are screwed together so that the threading depth is maximum, and the mounting part is coupled and fixed to the fixed part of the hinge metal fitting fixed to the lens frame side, it can be used as a conventional eyeglass frame. Similarly, when the temple is opened and the end surface of the temple is brought into contact with the lens frame, the temple becomes substantially parallel to a plane perpendicular to the straight line passing through the centers of the two lenses. Further, the machine screw and the female screw are screwed together so that the screwing depth thereof becomes the minimum, and the fixed part of the hinge fitting fixed to the ball frame side and the mounting part are combined and fixed, and the mounting part is pushed out to the temple side. Then, when the temple is opened and the end surface of the temple is brought into contact with the lens frame, it will expand outward from the lens frame by an angle made with a plane perpendicular to the straight line connecting the centers of the two lenses, and the ears of the temple will touch each other. The spacing between the frames is wider than that of conventional eyeglass frames. In this way, if you adjust the threading depth between the machine screw and the female screw between the maximum and minimum and push the mounting part toward the temple side, when the temple is opened, the end surface of the temple will come into contact with the ball frame. You can steplessly widen the distance between the ear hooks of each vine.

〔Example〕

An embodiment of this invention will be described below based on the drawings.

As shown in FIG. 1, a spectacle frame 1 according to an embodiment of this invention has a lens frame 3 made of hard plastic that supports two lenses 2; They are connected via a hinge 5, and when the temples 4 are opened outward from the ball frame 3, the end surfaces 6 of the temples 4 come into contact with the ball frame 3, and the ear hooks 7 of each temple 4 contact each other. The interval is determined. As shown in FIG. 2, the hinge 5 is composed of two hinge fittings, namely a ball frame side hinge fitting 8 and a temple side hinge fitting 9. The fixed parts 8a and 9a on one end side each extend to the ball frame 3.
The mounting portions 8b and 9 on the other end are embedded and fixed in the
b are rotatably connected to each other by screws 10 or the like. The temple hinge 9 has a fixed portion 9a and a mounting portion 9b integrally formed, and the fixed portion 9a is embedded and fixed in the temple 4. As shown in FIG. 3, the ball frame side hinge fitting 8 has a fixing part 8a and a mounting part 8b formed separately. This fixed part 8a
is formed in a circular convex portion 12 having a flange 11 on one side, a guide hole 13 penetrating into the circular convex portion 12 on the other side, a guide groove 14 with a U-shaped cross section connected to the guide hole 13, and this. A female thread 15 is formed in the guide groove 14 so as to be parallel to the guide hole 13, and the guide hole 1
3 and a guide groove 14 are opened on the side opposite to the circular convex portion 12. This fixing part 8a is embedded in the lens frame 3 from the circular convex part 12 side so that the center line of the guide hole 13 is perpendicular to the lens frame 3, and is held by the collar 11 of the circular convex part 12. It is designed so that it does not fall out of the ball frame 3. On the other hand, the mounting portion 8b
The fitting part 16 fitted into the guide hole 13 of the fixed part 8a and the protruding part 17 fitted into the guide groove 14 of the fixed part 8a are formed at right angles, and the fitting part 16 and A connecting hole 18 is provided on the side where the protruding portions 17 intersect, and is connected to the mounting portion 9b of the temple hinge fitting 9 using the screw 10 or the like. The protrusion 17 also has a through hole 19 that communicates with the female thread 15 of the fixed portion 8a when the mounting portion 8b is fitted into the fixed portion 8a.
A machine screw 20 is inserted into the through hole 19 from the temple 4 side, and the machine screw 20 and the female thread 15 are screwed together to connect the attachment part 8b to the fixed part 8a. ing. At this time, the guide hole 13 and guide groove 14 of the fixed part 8a are connected to the fitting part 16 and the protruding part 17 of the mounting part 8b, respectively.
By adjusting the depth of screwing of the machine screw 20 into the female thread 15, the temple 4 can be moved away from the ball frame 3, and the temple 4 can be opened and closed while maintaining a constant height with respect to the ball frame 3. can be done.

According to the eyeglass frame 1 described above, when the screwing depth of the machine screw 20 and the female screw 15 is maximized, as shown in FIG. 8b is deeply inserted into the fixed part 8a, and when the machine screw 20 of the mounting part 8b is screwed into the female screw 15 of the fixed part 8a and the temple 4 is opened outward of the ball frame 3, the 2 The lens frame 3 and the end surface 6 of the temple 4 are in contact with each other so that the plane perpendicular to the straight line passing through the centers of the two lenses 2 and the side surface of the temple 4 are almost parallel, and the distance between the ear hooks 7 of the temples 4 is adjusted. The distance is the same as the distance between the side ends of the lens frame 3. In addition, the screwing depth of the machine screw 20 and the female screw 15 is made shallow, so that the mounting part 8
Extrude b to the temple 4 side, as shown in Fig. 5,
The insertion portion 16 and the protruding portion 17 of the mounting portion 8b with the minimum screwing depth are the guide hole 1 of the fixed portion 8a.
3 and the guide groove 14, the distance between the end of the temple 4 and the lens holder 3 increases until the end surface 6 of the temple 4 comes into contact with the lens holder 3. When opened in the outward direction, the distance between the ear hooks 7 of the temples 4 is approximately 2Lsinθ, where L is the length of the temples 4, from the distance between the side ends of the lens frame 3. Can be expanded.
In this way, by adjusting the degree to which the mounting part 8b of the ball frame side hinge metal fitting 8 fits into the fixed part 8a, the interval between the ear hooks 7 of the temples 4 can be adjusted by a distance of 2Lsinθ, and the mounting The eyeglass frame 1 can be made to fit comfortably on the person.

In addition, even if the lens frame 3 and temple 4 of the above eyeglass frame 1 are made of metal, the shape of the fixed side of the fixed parts 8a and 9a of the lens frame side hinge fitting 8 and the temple side hinge fitting 9, respectively. It can be applied by changing it.

[Effect of idea]

As is clear from the above explanation, if the mounting part of the hinge fitting on the ball frame side is pushed out toward the temple side by steplessly adjusting the screw engagement between the small screw on the mounting part side and the female screw on the fixed part side, When the temples are opened toward the outside of the ball frame, the distance between the ear hooks of the temples is adjusted steplessly. For this reason, there is no need to manufacture many types of eyeglass frames, and only a small number of items can be produced, which not only reduces manufacturing costs but also allows fine fitting to suit the wearer.

[Brief explanation of the drawing]

1 to 5 show examples of this invention,
Fig. 1 is an overall perspective view, Fig. 2 is a perspective view of the hinge, Fig. 3 is a perspective view of the hinge fitting on the lens frame side, and Fig. 4 shows the mounting part of the hinge fitting on the lens frame side fitted into the fixed part to the maximum. FIG. 5 is a plan view in which the mounting portion of the ball frame side hinge fitting is pushed out to the maximum extent from the fixed portion. 1... Glasses frame, 3... Ball frame, 4... Vine, 5...
... Hinge, 8... Ball frame side hinge fitting, 9... Vine side hinge fitting, 8a... Fixed part, 8b... Mounting part, 13
... Guide hole, 15 ... Female thread, 16 ... Fitting part, 18 ... Connection hole, 20 ... Machine screw.

Claims (1)

[Scope of claim for utility model registration] Ball frame side hinge fittings fixed to both ends of the ball frame,
In an eyeglass frame comprising a hinge configured by rotatably connecting a temple side hinge fitting fixed to a temple, the lens frame side hinge fitting has a guide hole therein in a direction perpendicular to the lens frame. It also has a fixing part to which the ball frame is fixed, which has a female thread formed in a direction perpendicular to the ball frame, a fitting part that can be inserted into and removed from the guide hole of the fixing part, and a connecting hole for connecting the temple side hinge fitting, and also has a connecting hole for connecting the temple side hinge fitting, An eyeglass frame characterized by comprising a mounting portion equipped with a small screw to be screwed together.