JPS6215787Y2 - - Google Patents

Description

[Detailed description of the invention] This invention allows the angle of inclination of the eyeglass frame to be changed by a simple operation while the eyeglass frame is being worn, so that the angle of inclination of the eyeglass frame can be changed when viewing near or far. While constantly changing the angle, make sure that the line of sight and the lens surface are as perpendicular as possible.
This invention relates to an eyeglass frame that provides a comfortable wearing feeling.

Until now, there has been known a device in which the inclination angle of the eyeglass frame can be changed by rotating the frame legs in the vertical direction, such as that described in Japanese Utility Model Application Publication No. 178118/1983. . In this device, the inner sides of a pair of left and right lens frames are connected by a central connecting piece, and a pair of left and right nose pieces are attached to the inner sides of both lens frames while facing each other. A front end side of a support is attached to each outer side of the support body, and a connecting piece is attached to each of the supports by a male screw passed in the horizontal direction, so that the connecting piece can be rotated in the vertical direction around the male screw. The connecting pieces are attached near the front ends of the frame legs by vertical screws, so that the frame legs can be bent inward about the screws.

By the way, in this eyeglass frame, a large number of protrusions are formed radially around the male screw on the surfaces where the support body and the connecting piece contact each other. The purpose of this eyeglass frame is to adjust the lenses to the optimal angle for the wearer. In other words, loosen the male screw, rotate the connecting piece vertically with respect to the support, and adjust the angle of the frame leg relative to the lens to the optimum position for the wearer, and then tighten the male screw. Fix the connecting pieces. In this way, the lens can be placed at an optimal angle for the wearer. The angle can be reliably maintained by a large number of radial protrusions formed on the contact surfaces of the support body and the connecting piece, which fit between each other's protrusions. Once you have made an adjustment, do not change the angle unnecessarily.

As is clear from the above, the inclination angle of this eyeglass frame cannot be changed while it is being worn. Furthermore, no means is provided for regulating the range of rotation of the connecting piece relative to the support.

The purpose of this invention is to provide an eyeglass frame that can be quickly and easily changed to any tilt angle while the eyeglass frame is being worn, and that has a simple mechanism.

Hereinafter, embodiments of this invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a first embodiment in which this invention is applied to an ordinary eyeglass frame. A shows the main body of the eyeglass frame, and main body A includes left and right lenses 1, 1.
It consists of lens frames 2, 2 of the lenses 1, 1, and a central connecting piece 3 that connects the left and right lens frames 2, 2 slightly above the center.

Further, nose pieces 4, 4 are attached to the inner sides of the lens frames 2, 2 so as to face each other. Frame legs 5, 5 are attached to the outside of each of the lens frames 2, 2 so that they can be folded inward and at the same time can be rotated in the vertical direction. This will be explained with reference to the drawings and FIG.

FIG. 2 is an exploded perspective view showing the mounting mechanism. First, the front end of the support 6 is fixed and mounted on the outside of the lens frame 2. The rear end of the support body 6 is shaped like an arc, and a hole 7 is formed near the rear end. A receiving piece 9 having a substantially U-shape as a whole and having two holes 8, 8 is attached to the inner surface of the support 6 by brazing. At this time, the hole 7 of the support body 6 and the holes 8 of the receiving piece 9 are aligned. A separate connecting piece 10 is prepared, and the front end edge of the connecting piece 10 is formed into a U-shape to form an upper abutting surface 11 and a lower abutting surface 12.

A hole 13 is made near the front end, and two ring-shaped bodies 1 are inserted at the rear end with a slight interval in the vertical direction.
4 and 14. Lower ring-shaped body 14
A female thread is cut on the inner surface. Then, after fitting the connecting piece 10 into the receiving piece 9 and aligning the holes 8, 8 of the receiving piece 9 with the hole 13 of the connecting piece 10, insert the receiving screw 15 with a female thread cut on the inner surface into the hole 8 of the receiving piece 9. Insert the male screw 16 from the hole 7 side of the support body 6, screw it into the receiving screw 15, and tighten. Separate rotating piece 17
A ring-shaped body 18 is formed on the front end side of the rotating piece 17. The rotating piece 17 is attached near the front end of the frame leg 5 by brazing.
After fitting the ring-shaped body 18 of the rotating piece 17 between the two ring-shaped bodies 14, 14 of the connecting piece 10, the screw 19 is passed through the upper ring-shaped body 14 and the ring-shaped body 18 of the rotating piece 17, and then the lower ring-shaped body 18 of the rotating piece 17 is inserted. When it is screwed into the ring-shaped body 14 and tightened, the assembly is completed and the state shown in FIG. 3 is obtained. Note that the front edge of the frame leg 5 is recessed in an arc so that it follows the shape of the arc-shaped rear edge of the support 6; The rear end edge of the frame leg 5 and the front end edge of the frame leg 5 fit into each other.

As is clear from FIG.
It is designed to rotate around a screw 19 tightened between the ring-shaped body 18 and fold inward.

When the frame legs 5 are rotated outward, the front edge of the frame legs 5 comes into contact with the rear edge of the support 6 and stops. Further, the frame leg 5 can also be rotated in the vertical direction using a receiving screw 15 and a male screw 16 screwed between the receiving piece 9 and the connecting piece 10 as a fulcrum.

As is clear from FIG. 4, when the frame leg 5 is rotated upward, the upper contact surface 11 of the connecting piece 10 stops against the receiving piece 9, and the frame leg 5 is rotated downward. When this occurs, the lower contact surface 12 of the connecting piece 10 comes into contact with the receiving piece 9 and stops. Note that an appropriate frictional force is required to stably lock the frame legs 5 when they are rotated upward or downward, folded inward, or extended. This frictional force can be obtained by the tightening force of the male thread 16 and the screw 19, but the
The more you tighten it, the smaller the distance between the U-shaped portion of the receiving piece 9 and the ring-shaped bodies 14, 14 of the connecting piece 10 becomes, and the frictional force becomes stronger. Frictional force can be adjusted by adjusting.

The items shown above are used as follows.

First, when viewing a distance in a normal state, the frame legs 5, 5 are rotated upward to straighten the eyelids, and the lens surface is used at an angle where the line of sight and the lens surface are perpendicular to each other when viewing from a distance. At this time, the upper contact surfaces 11, 11 of the connecting pieces 10, 10 are in contact with the receiving pieces 9, 9, preventing further upward rotation of the connecting pieces 10, 10 and the frame legs 5, 5. are doing. When looking at something at hand, such as when reading, the line of sight is directed downward, so while wearing the device, pull the lower part of the main body A toward the face, and move the main body A forward while bending the frame legs 5, 5. Tilt it and use it at an angle that is almost perpendicular to your downward line of sight. At this time, connecting piece 1
The lower contact surfaces 12, 12 of 0, 10 are in contact with the receiving pieces 9, 9, and prevent further downward rotation of the connecting pieces 10, 10 and the frame legs 5, 5 (note that From a medical point of view, the ideal glasses tilt angle is 5 to 10 degrees for distance vision, and around 20 degrees for near vision.)

Although the above embodiment is an application of this invention to a normal single-focal eyeglass frame, this invention becomes more effective when applied to a multifocal eyeglass frame. Next, a second embodiment in which this invention is applied to bifocal glasses will be described with reference to FIGS. 5 to 9.

FIG. 5 is a perspective view showing the second embodiment,
The attachment mechanism of the frame legs 5, 5 is exactly the same as in the first embodiment. The lenses 1, 1 have a far distance lens section 20,
Near point lens portions 21 and 2 are located slightly lower in 20.
This is a bifocal lens that is integrally formed with 1. The nose pieces 4, 4 are not fixed but can be rotated up and down, and their rotation mechanism will be explained with reference to FIGS. 6 and 7.

FIG. 6 is a partial cross-sectional exploded perspective view of the support body 22 and the nose piece 4. A semicircular cut is made in the support body 22 from the tip side, and the tip of the cut is smaller than the cut. Since the semicircular cuts with diameters are made in opposite directions, two steps 23 and 24 are formed between the two cuts. Further, the support body 22 is provided with a horizontal hole 26 for passing the screw 25 therethrough. A leg bar 27 bent in a dogleg shape is attached to the back surface of the nose piece 4, and a rotating piece 28 is attached to the end of the leg bar 27. The rotating piece 28 has a circular shape with a fan-shaped piece integrally attached to the outer periphery.
It has a size and shape that fits into the recess of the support 22. A stepped portion 29 and a stepped portion 30 are formed before and after the fan-shaped portion. A hole 31 through which the screw 25 passes is bored in the center.

Then, the rotating piece 28 is placed in the recess of the support body 22.
After fitting the hole 26 of the support body 22 and the hole 31 of the rotation piece 28, the screw 25 is screwed in and the nose piece piece 4 can be rotated with respect to the support body 22 via the leg rod 27. When installed as shown, the state shown in FIG. 7 will be obtained. When the nose piece 4 is rotated downward, the step 30 of the rotating piece 28 is aligned with the step 2 of the support 22.
4, and when the nose piece 4 is rotated upward, the step 29 of the rotating piece 28 comes into contact with the step 23 of the support 22 and stops.

By the way, as is clear from FIG. 5, the surface of the nose piece 4 shown above has a bent dogleg shape when viewed in the vertical direction, and has an upper surface 32 located above and an upper surface 32 located below. It is provided with a lower temporary surface 33 located thereon.

Note that the nose piece 4 on the right side has a symmetrical shape to the nose piece 4 on the left side. As shown in FIG. 8, when the left and right nose pieces 4, 4 are rotated downward, the distance l between the opposing upper surfaces 32, 32 of both nose pieces 4, 4 is the distance between the two nose pieces 4, 4. It is designed to be equal to or slightly larger than the distance l' between the opposing lower contact surfaces 33, 33 when the two opposing lower contact surfaces 33, 33 are rotated upward.

The second embodiment is used as shown in FIG. The island-shaped part shown with hatching near the root of the nose is the contact surface 34 that the contact surface of the nose piece 4 comes into contact with, and connects approximately the center of each of the left and right contact surfaces 34, 34. The interval between them almost matches the aforementioned interval l. First, distance lens part 2
For normal use using 0,20,
As shown in FIG. 9A, the frame legs 5, 5 are straightened and the nose pieces 4, 4 are rotated upward to be worn. At this time, the rotating piece 2 attached to the nose piece pieces 4, 4
The stepped portions 29, 29 of the supports 22, 22 are stably supported by the stepped portions 23, 23 of the supports 22, 22. In this state, the lower part 33 of the nose piece pieces 4,
33 is in contact with the nose contact surfaces 34, 34, and supports the main body A of the eyeglass frame in a lowered state.

If you want to use the near-point lens parts 21, 21, lift the main body A and lightly press the upper ends of the nose pieces 4, 4 to the edge of the eyebrows.
rotates downward (note that simply lifting the main body A causes the nose pieces 4, 4 to rotate against the edge of the eyebrows, so this operation can be done almost unconsciously.) . At this time, the main body A
If you put it on after tilting it forward, it will be in the state shown in Figure 9 (b). In this worn state, the upper abutment surfaces 32, 32 of the nose pieces 4, 4 abut against the abutment surfaces 34, 34 of the nose, and the main body A is supported while being lifted up and tilted forward. For this reason, the near-point lens parts 21, 21 are also slightly raised, approaching the center of the visual field, and further approaching the eyes. Moreover, when using the near-point lens parts 21, 21, we often look at things at hand, and when we look at things at hand, the field of view is directed downward, so the main body A is tilted slightly forward. The angle of inclination is almost perpendicular to the field of view. Near point lens section 2
1 and 21 are close to the center of the visual field and are almost perpendicular to the line of sight, so the eyes do not get tired. Moreover, since it is close to the eyes, the field of view of the near-point lens parts 21, 21 is widened.

In addition, as is clear from the above, the nose pieces 4, 4
The surface of the main body A is bent in a dogleg shape in the vertical direction, and the upper contact surfaces 32, 32 located above and the lower contact surfaces 33, 33 located below are formed when the main body A is lifted up. This is to support it in a lowered state or to support it in a lowered state.
This is also to correct the contact angle of the nose pieces 4, 4 with the contact surfaces 34, 34 of the nose side surfaces due to the rotation when the main body A is moved up and down.

In addition, when lowering the main body A from the lifted state, simply push down the main body A and press the nose pieces 4, 4 downward against the sides of the nose.
4 upward, and at the same time rotate the lower part of the main body A forward,
6, the frame legs 5, 5 can be immediately extended and worn as is.

Although the second embodiment described above is an embodiment of a bifocal eyeglass frame, the number of parts formed on the nose piece 4 may be three or more to provide a trifocal or more eyeglass frame. Further, although the nose piece 4 is rotated to move up and down, it may also be moved up and down by sliding.

As is clear from the above, the glasses frame according to this invention can be quickly changed to the desired tilt angle while the frame is being worn, and the lens surface can be constantly adjusted to the ideal position for the line of sight according to the usage situation. It can be tilted to a certain angle. In addition, especially when a multifocal lens is used and the nose piece can be moved up and down, it is extremely convenient because it can be used in an ideal state no matter which lens part is used. In the eyeglass frame according to this invention, the supports 6, 6 side and the connecting pieces 10, 1
Since a light frictional force is generated on the contact surface between the eyeglass frame and the zero side, when the eyeglass frame is set at a predetermined angle, that angle can be stably maintained. Moreover, since the rotation range regulating means is provided between the supports 6, 6 and the connecting pieces 10, 10, the frame legs 5, 5 can only rotate within a necessary predetermined range. Therefore, there is no need to be nervous about not rotating too much. Note that in normal cases, it is sufficient to be able to adapt to both far vision and near vision.
Therefore, in most cases, when the frame legs 5, 5 are rotated up and down and the connecting pieces 10, 10 are rotated up and down, the rotation range is set at the optimal position for distance vision and near vision, respectively. All that is needed is to ensure that regulatory measures are in place. In this case, when the frame legs 5, 5 are rotated up and down, the position where the rotation is blocked becomes the optimal tilted position for distance vision or near vision. It is extremely convenient as you don't have to worry about operating it. Furthermore, this eyeglass frame has a simple mechanism and does not require major changes to the mechanism of conventional eyeglass frames, so it is easy to manufacture and can be manufactured at a very low cost.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the first embodiment of this invention, FIG. 2 is an exploded perspective view of main parts of the first embodiment,
Fig. 3 is a perspective view showing the assembled state of the one shown in Fig. 2;
FIG. 4 is a partially sectional front view of the one shown in FIG. 3, FIG. 5 is a perspective view showing a second embodiment of the invention, FIG. 6 is a partially sectional exploded perspective view of the main part of the second embodiment, and FIG. The figure is a perspective view showing the assembled state of the one shown in Fig. 6, Fig. 8 is a front view of main parts explaining the operation of the second embodiment, and Fig. 9 is an explanatory diagram also explaining the operation of the second embodiment. . 2: Lens frame, 3: Central connecting piece, 4: Nose piece,
5: frame leg, 6: support body, 9: receiving piece, 10: connecting piece, 17: rotating piece.

Claims (1)

[Scope of utility model registration request] The inner sides of a pair of left and right lens frames 2, 2 into which the lenses 1, 1 are respectively fitted are connected by a central connecting piece 3, and a pair of left and right nose pieces 4 is attached to each inner side of both lens frames 2, 2. , 4 are mounted facing each other, and the front end sides of supports 6, 6 are respectively mounted on the outside of each lens frame 2, 2, and external screws 16, 16 are installed in these supports 6, 6 in a horizontal direction.
The connecting pieces 10, 10 are attached to each other so that the connecting pieces 10, 10 can be rotated in the vertical direction around the male screws 16, 16, respectively. The screws 19 and 19 are used to secure the frame legs 5 and 5, respectively.
Attach near the front end of the frame legs 5, 5 with screws 19,
The supports 6, 6 can be bent inward around the center 19, respectively.
The surfaces where the side and the connecting pieces 10, 10 side come into contact with each other are both flat, and a light frictional force is generated on the contact surfaces to press them together,
Moreover, there is a rotation mechanism between the supports 6, 6 and the connecting pieces 10, 10 to restrict the rotation of the frame legs 5, 5 between a substantially horizontal position and a slightly downwardly rotated position. An eyeglass frame characterized by having a movement range regulating means.