JP2867884B2 - Auxiliary glasses - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to auxiliary spectacles generally used in conjunction with ordinary spectacles,
More specifically, it is suitable for, for example, auxiliary glasses for presbyopia used in combination with myopic glasses or auxiliary glasses for light shielding (sunglasses) used in combination with regular glasses.

[0002]

2. Description of the Related Art Generally, auxiliary eyeglasses have a hook portion on a frame portion, the hook portion is hooked on a normal eyeglass frame, and a lens portion is used by being superimposed on a lens of the eyeglass (for example, an actual lens). JP-A-63-107418, JP-B-5-8581). However, the above-mentioned auxiliary glasses cannot adjust the position of the lens unit of the auxiliary glasses, and cannot adjust the lens unit to the eye line of the user. Was.

On the other hand, a pair of left and right swing arms are pivotally mounted on the bifocal glasses so as to swing up and down by a predetermined angle at a central portion of a frame of the long distance glasses. A proposal has been made in which the base ends of the arms are engaged with each other via a gear portion, and an auxiliary lens for a short distance is formed at the distal end of each swing arm (for example, Japanese Utility Model Laid-Open No. 2-53019, especially No. 4). Figure). In addition, as a similar structure, a connecting portion is formed in a bridge portion of a frame of prescription glasses, and a pair of left and right swing arms similar to the above-described glasses are pivotally attached to this connecting portion, and to the tip of each swing arm. A camera with an auxiliary sunglass lens has been proposed (for example, Japanese Utility Model Publication No. 2-21622).

[0004]

Problems to be Solved by the Invention
Each of the above-mentioned glasses disclosed in Japanese Patent Application Laid-Open Publication No. Hei. 2-21622 and Japanese Utility Model Laid-Open Publication No. Hei 2-21622 has the sole purpose of moving the auxiliary lens upward from the position of the regular eyeglass lens. It is believed that it is also possible to adjust the position of the auxiliary lens within the range of the lens. However, since the swing arm supporting the auxiliary lens cannot be easily detached from the spectacle frame, the auxiliary lens and the auxiliary lens are supported when the auxiliary lens is not required or when the user goes out. There is a problem that the swing arm is in the way and the appearance is bad.

SUMMARY OF THE INVENTION It is an object of the present invention to remove an ordinary lens frame without special processing, and to attach an auxiliary lens portion within a range of the ordinary eyeglass lens in a state of being attached to the ordinary eyeglass frame. An object of the present invention is to provide auxiliary glasses capable of adjusting the position.

[0006]

According to a first aspect of the present invention, there is provided a first auxiliary eyeglass having a lens-like portion and a bridge portion connecting the two lens-like portions. A pair of swing arms that can swing up and down a predetermined angle range in a certain friction braking state are mounted on the shaft,
The distal end of each swing arm is located laterally away from the center of the bridge, and a hook is formed at the distal end for hooking the eyeglass frame. In the auxiliary glasses, it is preferable that the lens-shaped portion and the bridge portion are integrally formed of, for example, a synthetic resin. Further, it is preferable to form a convex portion or a concave portion on the upper part of the one or both swing arms near the tip.

In order to achieve the above-mentioned object, the second auxiliary glasses according to the present invention have a lens-shaped portion, a connecting rod having an upwardly curved elasticity connecting the upper portions of both lens-shaped portions, and a connecting rod having the elasticity. And an arcuate or mountain-shaped bridge portion having elasticity for connecting the two lens-shaped portions to each other below the connecting rod, wherein the connecting rod is separated at a middle portion in a longitudinal direction, and a tip end of one of the connecting rods is provided. A fitting portion comprising a hole or a groove having a predetermined length along the length direction of the one piece is formed, and a fitting portion of a predetermined length to be fitted into the fitting portion is formed at the tip of the other piece of the connecting piece. And a hook portion is formed on an upper portion of each of the connecting rods so as to be hooked to the spectacle frame.

In order to achieve the above-mentioned object, the third auxiliary glasses according to the present invention have a mounting base having a hook portion to be hooked to the eyeglass frame, and a predetermined angle range in a vertical direction with a certain degree of frictional braking applied to a mounting base. A pair of left and right swing arms are pivotally mounted so as to be swingable, and a lens-like portion is formed at the tip of each swing arm. In the auxiliary glasses, it is preferable that the swing arm and the lens-shaped portion formed at the tip end are integrally formed of, for example, synthetic resin.

When each of the above-mentioned auxiliary glasses according to the present invention is made of synthetic resin, the lens-shaped portion is mainly made of a material having high transparency such as polycarbonate or acrylic, and the other portions are made of, for example, nylon. It is preferable to use a material having high moldability and durability as the main material. Further, it is preferable that the hook portion in each of the auxiliary glasses is a hook portion having a hooking structure such that the lens-shaped portion of the auxiliary glasses overlaps the inside of the eyeglass lens.

[0010]

The first auxiliary glasses according to the present invention are used in a state in which the hooks of the swing arms are hooked on the upper part of the ordinary eyeglass frame and mounted on the eyeglasses, and the lens of the eyeglasses and the lens-shaped part are overlapped. . Since each swing arm is pivotally mounted on the bridge portion so as to be able to swing up and down in a certain friction braking state, when the swing arm is swung by a predetermined angle, the lens-shaped portion and the bridge portion stop at that position, They do not descend further due to the weight of the lenticular and bridge portions. Therefore, the "a certain amount of friction braking state" described above means a friction braking state in which the lens-shaped portion and the bridge portion are not lowered by their own weight.

Further, when each swing arm is pulled to both sides in the above-mentioned mounted state, or when the bridge portion is pushed up with the swing arm pressed against the eyeglass frame with a finger, each lens-shaped portion rises, and each swing arm is raised. The lens-shaped portion is lowered when the bridge portion is pulled down in a direction toward the center of the spectacle frame or when the swing arm is pressed against the spectacle frame with a finger. Therefore, the position of each lens-shaped portion can be operated and adjusted in the up-down direction (oblique up-down direction) while the lens is in the mounted state. Further, when storing in a case or the like, both swing arms can be lowered and lowered to the lower limit position.

The first auxiliary glasses described above can be configured so that both swing arms oscillate synchronously by, for example, configuring as follows. The first
Is configured so that the base end of each swing arm is axially mounted in a state of being arranged substantially at the center of the bridge portion, and the base ends are engaged with gears formed on both base ends. is there. That is, since the base ends of the two swing arms are meshed by the gear portion, when one of the swing arms is operated, the other swing arm swings in synchronization with the one swing arm.

Second, the base ends of the respective swing arms are pivotally mounted so as to be substantially aligned with the center of the bridge, and the base ends are connected to each other by a rubber or other arc-shaped member formed at each base end. In such a manner that the contact is made via the high friction member. The above-mentioned high friction member also includes, for example, a synthetic resin having irregularities on the surface. With this configuration, since the base end portions of the two swing arms in contact with each other have a large frictional resistance, when one of the swing arms is operated, the other swing arm swings in synchronization with the one of the swing arms.

Third, the base ends of the swing arms are pivotally mounted at positions symmetrically laterally away from the center of the bridge portion, and the swing arms are connected to each other in their lengthwise directions. At an intermediate position, and in the overlapping portion, a pin protrudes from one swing arm,
The other swing arm is provided with a guide formed of a long hole or a groove for guiding the pin in a movable state when both swing arms swing. With this configuration, when one of the swing arms is operated, the other swing arm swings in synchronization with the one of the swing arms because the pin is guided by the guide in a movable state.

Fourthly, the swing arm is pivotally mounted on a single shaft in a state where both base ends of the swing arms are superimposed on a substantially central portion of the bridge portion. Mover penetrating the overlapping part of the part and the bridge part,
Attached to a state located on a vertical line passing through the axis of the shaft,
In the overlapping portion of the base end portion, a guide hole formed of an elongated hole through which the mover is guided in a movable state when the swing arm swings is formed in an arc shape, and the bridge portion includes the swing A guide hole composed of a long hole through which the movable element is guided in a movable state when the arm swings is formed along the vertical line. A pin-shaped member or a bearing is suitably used for the mover. With this configuration, when one of the swing arms is operated, the mover is pushed along the side wall of the guide hole formed in the swing arm and moves along a predetermined arc trajectory,
By this movement, the mover moves along a vertical guide hole formed in the bridge portion and swings the other swing arm along the guide hole formed in the bridge portion. Is operated, the other swing arm swings in synchronization with the one swing arm.

In the second auxiliary eyeglasses according to the present invention, the hooks of the two pieces of the connecting rod are hooked on the upper part of the eyeglass frame and mounted on the ordinary eyeglasses, and the lens of the eyeglasses and the lens-like part are overlapped. Use in state. With the above-described configuration, the length of the connecting rod is lengthened or shortened by adjusting the overlap length between the length of the fitting portion of one piece of the connecting rod and the length of the fitted part of the other piece. be able to. For example, when the length of the connecting rod is shortened, the bridge portion becomes closer to a straight line due to its elasticity and extends, so that the distance between the lens-like portions increases and each lens-like portion moves obliquely upward. Further, when the length of the connecting rod is increased, the bridge portion is more bent due to its elasticity and the distance between both ends is reduced, so that the distance between the lens-shaped portions is reduced and each lens-shaped portion moves obliquely downward. Therefore, the position of each lenticular portion can be adjusted within the above-described range of movement of each lenticular portion.

In the third auxiliary eyeglasses according to the present invention, the hook portion of the mounting base is hooked to the upper central portion of the eyeglass frame or the bridge portion of the eyeglass frame, and each lens-shaped portion is mounted so as to overlap the eyeglass lens. use. Since a pair of left and right swing arms are pivotally mounted on the mounting base so as to be able to swing up and down in a certain friction braking state, if each swing arm is pushed up and down, the magnitude of the swing angle is increased. Each lens-shaped part moves up and down in accordance with the amount corresponding to. Therefore, the position of each lenticular portion can be adjusted within the above-described range of movement of each lenticular portion.

The third auxiliary glasses described above can be configured, for example, as follows so that both swing arms and the lens-shaped portions formed on them swing in unison. . The first is that the swing arm is axially mounted with the base end thereof aligned with the mounting base, and the base ends are engaged with gears formed on both base ends. is there. That is, since the base ends of the two swing arms are meshed by the gear portion, when one of the swing arms is operated, the other swing arm swings in synchronization with the one swing arm.

Second, the base ends of the swing arms are axially mounted in a state of being aligned with the mounting base, and the base ends are connected to each other by rubber or other arc-shaped high friction formed on each base end. That is, it is configured to make contact through a member. The high friction member also includes, for example, a synthetic resin having irregularities on its surface. With this configuration, since the base end portions of the two swing arms in contact with each other have a large frictional resistance, when one of the swing arms is operated, the other swing arm swings in synchronization with the one of the swing arms.

Third, the swing arm is pivotally mounted on a single shaft in a state where the base end of each swing arm is superimposed on the mounting base, and in the vicinity of the shaft, an overlapping portion of the two base ends is provided. The mover penetrating through the mounting base is mounted in a state where it is positioned on a vertical line passing through the axis of the shaft, and the mover is movable when the swing arm swings at an overlapping portion of the base end. A guide hole formed of an elongated hole guided in a state is formed in an arc shape, and a guide hole formed of an elongated hole in which the movable element is guided in a movable state when the swing arm swings. Is formed along the vertical line. According to this structure, when one of the swing arms is operated, the mover moves along a predetermined arc trajectory along with the swing of the swing arm, whereby the mover is formed on the mounting base. When moving one swing arm to move along the vertical guide and swing the other swing arm along the guide hole formed in the other swing arm, the other swing arm is connected to the one swing arm. Swings in tune.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the auxiliary glasses according to the present invention will be described below with reference to the drawings. FIG.
2 is a partially omitted front view of the auxiliary glasses of the embodiment corresponding to FIG. 2 viewed from the eyepiece direction, FIG. 2 is a plan view of the auxiliary glasses of FIG. 1 with the swing arm lowered to the lowest position, and FIG. FIG. 4 is an enlarged plan sectional view of a shaft attachment portion of each swing arm of the glasses, FIG. 4 is a perspective view of a state in which the auxiliary glasses of FIG. 1 are mounted on ordinary glasses, and FIG. FIG. 6 is a partially omitted front view of the spectacles viewed from the eyepiece direction, FIG. 6 is a front view of the auxiliary spectacles according to the first and fourth embodiments viewed from the eyepiece direction, and FIG.
Is a front view of the auxiliary glasses of the embodiment corresponding to claims 1 and 5 viewed from the eyepiece direction, FIG. 8 is a partially enlarged cross-sectional view of the auxiliary glasses of FIG. 7 along the arrow AA, and FIG. FIG. 10 is a partially cutaway front view of the auxiliary glasses of the corresponding embodiment viewed from the eyepiece direction.
FIG. 11 is a plan view of the auxiliary glasses of FIG. 9, FIG. 11 is a perspective view of the auxiliary glasses of FIG. 9 mounted on ordinary glasses, and FIG.
FIG. 13 is a perspective view of a state in which the auxiliary glasses of the embodiment corresponding to FIG. 7 are mounted on ordinary glasses, and FIG. 13 is a front view of the auxiliary glasses of another embodiment corresponding to claim 7 viewed from the eyepiece direction.

In the auxiliary glasses shown in FIGS. 1 to 4, the lens-shaped parts 1, 1 are convex (for short distance) lenses, and the lens-shaped parts 1, 1 and the upper parts of the lens-shaped parts 1, 1 are connected to each other. The bridge portion 2 is integrally formed by adding a suitable amount of a softening agent to a highly transparent synthetic resin such as polycarbonate or acrylic. Each lens-like part 1 has
It is desirable from the viewpoint of durability that the surface is hard-coated with a hard silicone resin or the like.

A pair of swing arms 3, 3 made of nylon are pivotally mounted on the bridge portion 2 so as to be able to swing up and down within a predetermined angle range in a certain friction braking state. In this embodiment, as shown in FIG. 3, the shafts 20, 20 are integrally formed so as to be arranged in the lateral direction and to protrude toward the eyepiece at substantially the center of the bridge portion 2. The base ends 30, 30 of the swing arms 3, 3 are rotatably penetrated, and the shaft ends of the shafts 20, 20 have oval stopper members 32 (the stopper members 3).
2 is omitted in FIG. ) Is fixed.
When the base ends 30, 30 are slightly pressed against the bridge 2 by the retaining member 32 during the press-fitting, the swing arms 3, 3 are maintained in a certain degree of friction braking state in the swing direction. It is designed to drip.

The distal ends of the swing arms 3, 3 are symmetrically located in a state of being laterally separated from the center of the bridge portion 2, respectively, and the distal end thereof has a spectacle frame 40 (FIG. 4).
Hook portions 31, 31 for hooking the hooks are respectively formed. Further, in the auxiliary glasses of this embodiment, concave portions or convex portions 33, 33 are formed above the positions of the swing arms 3, 3 near the distal end. Further, gear portions 34, 34 are formed at opposing portions of the base ends of the swing arms 3, 3, and the gear portions 34 mesh with each other.

As shown in FIG. 4, the auxiliary spectacles of the above embodiment hook the hook portion 31 on the spectacle frame 40 of the spectacles 4 which are commonly used, and the lens-shaped portions 1, 1 are the lenses 41, 4 of the spectacles 4.
Use it in a state where it overlaps the eyepiece side. Each of the swing arms 3, 3 is pivotally mounted on the bridge portion 2 so as to be able to swing up and down in a certain frictional braking state, and the lens-shaped portion and the bridge portion are extremely lightweight. , 3 are swung by a predetermined angle, the lens-shaped portions 1, 1 and the bridge portion 2 stop at that position, and they do not naturally descend due to the weight of the lens-shaped portions 1, 1 and the bridge portion 2.

In the above-mentioned mounted state, a finger is put on the projections 33 of both swing arms 3 and 3,
3 is pulled to both sides, the base ends 30, 30
4, both swing arms 3,
3 oscillates (rotates) in synchronism with the bridge portion 2, so that each lens-shaped portion 1, 1 moves up with the bridge portion 2 by a predetermined amount. On the other hand, both swing arms 3,
When the lens 3 is pushed toward the center of the spectacle frame 40, the lens-shaped parts 1, 1 are synchronized with each other and descend by the same amount.

Therefore, the positions of the lens-shaped portions 1 and 1 can be simultaneously operated and adjusted in the up-down direction (obliquely up-down direction) in the mounted state. Also, the frame 40 of the glasses 4
Can be used without special processing. Further, when the auxiliary glasses are stored in, for example, a case (not shown), the swing arms 3 and 3 are rotated until the tip ends thereof come into contact with the lenticular portions 1 and 1, and the swing arms 3 and 3 are The whole can be stored in a small size in a state where it is almost overlapped.

Instead of the gear portions 34, 34 in the auxiliary glasses of the embodiment, for example, as shown in FIG. 5, an arc-shaped rubber is formed in a portion opposed to the base ends 30, 30 of the swing arms 3, 3. The same effect can be obtained by forming the high friction members 35 and 35 so that the base ends 30 and 30 come into contact with each other via the members 35 and 35. That is, when one of the swing arms 3 is swung with respect to the bridge portion 2,
The swing (rotation) is transmitted to the other swing arm 3 via each of the high friction members 35, and both swing arms 3, 3
Swings in tune. Other configurations, functions, and effects of the auxiliary glasses of the embodiment of FIG. 5 are substantially the same as those of the embodiment of FIG. 1, and thus description thereof will be omitted.

In order to swing the swing arms 3 and 3 in synchronism, in addition to the above-described embodiments, a structure as shown in FIG. 6 can be used. In the example of FIG. 6, the swing arms 3 and 3 have their base ends 30 and 30 connected to the bridge 2.
The swing arms 3 and 3 are axially mounted at both end positions symmetrically laterally away from the center of the swing arm, and the swing arms 3 and 3 overlap each other at an appropriate intermediate position in their longitudinal direction. Pin 3 on swing arm 3
The other swing arm 3 has a guide 37 formed of a long hole or a groove for guiding the pin 36 in a movable state when the swing arms 3 and 3 swing. According to the auxiliary glasses of the embodiment of FIG. 6, when one of the swing arms 3 is swung, the swing arms 3, 3
Since the pin 36 is movably guided by the guide 37 as described above, the other swing arm 3 also synchronizes and swings by the same amount. Other configurations, operations, and effects of the auxiliary glasses in the example of FIG. 6 are substantially the same as those of the embodiment of FIG. 1, and thus description thereof will be omitted.

In order to swing the swing arms 3 and 3 synchronously, in addition to the above-described embodiments, a structure as shown in FIGS. 7 and 8, for example, can be adopted. In the example of FIG.
Both base ends 30, 30 of the swing arms 3, 3 are overlapped substantially at the center of the bridge portion 2, and these are pivotally attached to the bridge portion 2 by a single shaft 20 formed integrally. In the vicinity of the shaft 20, both base ends 30, 3 are provided.
A mover 38 composed of a pin penetrating the overlapping portion of the shaft 20 and the bridge portion 2 is attached in a state where it is positioned on a vertical line passing through the axis of the shaft 20. When the swing arms 3 and 3 swing, the movable member 38 is formed in a circular arc shape with guide holes 39 and 39 formed in a movable state, and the bridge portion 2 is provided with the swing arms 3 and 3. , 3 are formed along the vertical lines with guide holes 21 (shown only in FIG. 8) formed of long holes for guiding the mover 38 in a movable state. For the mover 38, a bearing (particularly a ball bearing) can be used instead of the pin as described above.

According to the auxiliary glasses shown in FIGS. 7 and 8, when one of the swing arms 3 is swung, the movable member 38 hits the side wall of the guide hole 39 of the one swing arm 3 and follows a predetermined circular orbit. This movement causes the mover 38 to move along the vertical guide holes 21 formed in the bridge portion 2 and to move the other swing arm 3 into the guide holes 39 formed in the swing arm 3. When one of the swing arms 3 is operated in order to swing along, the other swing arm 3 swings by the same amount in synchronization with the one swing arm 3. Other configurations, functions, and effects of the auxiliary glasses in the examples of FIGS. 7 and 8 are substantially the same as those of the auxiliary glasses of the embodiment in FIG. 1, and thus description thereof will be omitted.

Referring to FIGS. 9 to 11, a description will be given of the auxiliary glasses according to still another embodiment. The synthetic resin lens-shaped portions 1 and 1 are convex (for short distance) lenses, each of which is formed by adding a suitable amount of a softening agent to a synthetic resin having high transparency such as polycarbonate or acrylic. . It is preferable that the surface of each lens-shaped portion 1 is hard-coated with a hard silicone resin or the like to make it hard to be damaged.

A connecting rod 5 having an upwardly curved elasticity for connecting the upper parts of the two lens-shaped parts 1 and 1 to each other, and this connecting rod 5
Below, a resilient arc-shaped or mountain-shaped bridge portion 6 for connecting the two lens-shaped portions 1 and 1 to each other;
It is continuous through the connecting portions 60 at both ends, and is integrally formed of semi-rigid synthetic resin (nylon). In this embodiment, the lens-like parts 1 and 1 are connected to the connecting rod 5 and the bridge part 6 at the connection part 60 after molding.
These can be integrally formed as a whole.

The connecting rod 5 has one half 50 in the middle in the longitudinal direction.
And the other piece 51, and a fitting portion 52 formed of a hole or a groove having a predetermined length along the length direction of the one piece 50 is formed at the tip end of the one piece 50. Piece 5
A fitting portion 53 having a predetermined length to be fitted into the fitting portion 52 is formed at the distal end of the fitting 1. Each piece 50, 51 of the connecting rod 5 has an eyeglass frame 40 (FIG.
Hook portions 54 and 55 to be hooked to the bridge 42 of 1) are formed respectively.

The auxiliary glasses of the embodiment shown in FIGS.
Hook portions 54, 5 of both pieces 50, 51 of the connecting rod 5 as shown in FIG.
5 is hung above the bridge 42 of the frame 40 of the spectacles 4, and is used in a state where the lenticular portions 1, 1 overlap the lenses 41, 41 of the spectacles 4 on the eyepiece side. By adjusting the length of the fitting portion 52 of the one piece 50 of the connecting rod 5 and the fitting length of the fitting piece 53 of the other piece 51 by the above-described configuration, the overall length of the connecting rod 5 is adjusted. Can be lengthened or shortened.

When the length of the connecting rod 5 is reduced, for example, the bridge portion 6 extends so as to be closer to a straight line due to its elasticity, so that the distance between the lens-shaped portions 1 and 1 is increased and each lens-shaped portion is increased. 9 moves diagonally upward as indicated by the arrow in FIG. Further, when the length of the connecting rod 5 is increased, the bridge portion 6 is bent by its elasticity, so that the distance between the lens-shaped portions 1, 1 is reduced, and each lens-shaped portion 1, 1 is different from the arrow in the figure. It moves diagonally downward, which is the opposite direction. Therefore, the position of each lenticular portion can be adjusted within the above-described range of movement of each lenticular portion. Further, when storing the auxiliary glasses in a case (not shown) or the like, the pieces 50 and 51 of the connecting rod 5 are removed and the bridge portion 6 is extended, or the fitting portion 52 is connected to the fitting portion 53. By fitting it to the deepest, it is possible to store the whole in a small size.

With reference to FIG. 12, a description will be given of the auxiliary glasses according to still another embodiment. A pair of left and right swing arms 8 and 8 are provided on a mounting base 7 made of a synthetic resin having a hook portion 70 at an upper portion to be hooked to the eyeglass frame 40 so as to be able to swing up and down a predetermined angle range in a certain friction braking state.
Are respectively attached by shafts 20, 20, and lens-like portions 1, 1 are integrally formed at the tip of each swing arm 8, 8. Each lens-shaped part 1 and each swing arm 8 of this embodiment are integrally formed of the same material as in the embodiment of FIG. 1, and the surfaces of the lens-shaped parts 1 and 1 are similarly hard-coated. And it is hard to be damaged. And
High friction members 35, 35 made of an arc-shaped rubber are fixed to arc portions of the swing arms 8, 8 opposite to the base ends 80, 80, respectively.
35 is in contact. Also in this example, the high friction member 35 can be a synthetic resin molded product having a surface with irregularities.

In the auxiliary glasses of the embodiment shown in FIG. 12, the hook 70 of the mounting base 7 is hooked to the center (or bridge) of the eyeglass frame 40 as shown in FIG.
The lens-like parts 1 and 1 are attached to the eyepiece side (inside) of the lenses 1 and 41 so as to be used. When one of the swing arms 8 is swung, the movement is transmitted to the other swing arm 8 via the high friction member layer 35, so that the two swing arms 8, 8 are synchronized and swing by substantially the same amount. Therefore, the position of the lens-shaped portions 1 and 1 can be adjusted by operating one of the swing arms 8. Other configurations, operations, and effects of the auxiliary glasses of this embodiment are almost the same as those of the auxiliary glasses of the embodiment in FIG.

In the auxiliary glasses of FIG. 12, the high-friction member layers 35, 35 have the same effect as described above even if they are replaced with gears, similarly to the auxiliary glasses of the embodiment of FIG.

In order to operate the swing arms 8 in synchronism, the swing arms 8 can be configured as shown in FIG. 13, for example. That is, the base end 80 of each swing arm 8,8,
The shaft 80 is mounted on the mounting base 7 by a single shaft 20 in the state of being overlapped with the mounting base 7.
The mover 38 composed of a pin penetrating the overlapping portion 80 and the mounting base 7 is mounted so as to be positioned on a vertical line passing through the axis of the shaft 20. For the mover 38, a ball bearing can be used. In the overlapping portion of the base ends 80, 80, guide holes 39, 39, which are long holes for guiding the mover 38 in a movable state when the swing arms 8, 8 swing, are formed in an arc shape. In addition, the mounting base 7 has a guide hole (a guide hole 21 which is the same as the guide hole 21 in FIG. 8) formed of a long hole through which the movable element 38 is guided in a movable state when the swing arms 8, 8 swing. , Not shown) along the vertical line.

With the structure described above, when one of the swing arms 8 is operated by the same operation as in the embodiment of FIGS. 7 and 8, the other swing arm 8 is synchronized with the one of the swing arms 8. Rock by the same amount. FIG.
Other configurations, operations, and effects of the third embodiment are almost the same as those of the embodiment of FIG. 8, and therefore, description thereof will be omitted.

Although the auxiliary glasses of each of the above embodiments have been described as being applied to presbyopia auxiliary glasses, they can be implemented as light-shielding auxiliary glasses, that is, auxiliary sunglasses. In this case, the lens-shaped portions 1, 1 are formed into convex lenses with a predetermined color, or are formed by simply adding colors without adding degrees to the lens-shaped portions 1, 1.

[0043]

The auxiliary glasses according to the present invention have the following effects. That is, the auxiliary glasses described in Claims 1, 6 and 7 do not require any special processing for the glasses using them, and furthermore, within a predetermined range of the size of the spectacle lens, the position of the lens-shaped portion is adjusted. It can be adjusted and used according to the user's eyes and place of use. When the auxiliary glasses are stored in the case, the auxiliary glasses can be stored in a smaller size than the use state.

In the auxiliary glasses according to the second to fifth aspects, in addition to the above-described effects, by operating one of the swing arms, the other swing arm can be synchronized with the other. Thereby, the positions of both lens-shaped portions can be adjusted and adjusted.

[Brief description of the drawings]

FIG. 1 is a partially omitted front view of auxiliary glasses of an embodiment corresponding to claims 1 and 2 as viewed from an eyepiece direction.

FIG. 2 is a plan view of the auxiliary glasses of FIG. 1 in a state where a swing arm is lowered to the lowest position.

FIG. 3 is an enlarged plan sectional view of a shaft attachment portion of each swing arm of the auxiliary glasses of FIG. 1;

FIG. 4 is a perspective view showing a state in which the auxiliary glasses of FIG. 1 are mounted on ordinary glasses.

FIG. 5 is a partially omitted front view of the auxiliary spectacles of the embodiment corresponding to the first and third aspects as viewed from the eyepiece direction.

FIG. 6 is a front view of the auxiliary glasses according to the first and fourth embodiments as viewed from the eyepiece direction.

FIG. 7 is a front view of the auxiliary glasses according to the first and fifth embodiments as viewed from the eyepiece direction.

FIG. 8 is a partially enlarged cross-sectional view of the auxiliary glasses of FIG. 7, taken along arrow AA.

FIG. 9 is a partially broken front view of the auxiliary glasses of the embodiment corresponding to claim 6, viewed from the eyepiece direction.

FIG. 10 is a plan view of the auxiliary glasses of FIG. 9;

FIG. 11 is a perspective view showing a state in which the auxiliary glasses of FIG. 9 are mounted on ordinary glasses.

FIG. 12 is a perspective view showing a state in which auxiliary glasses of the embodiment corresponding to claim 7 are mounted on ordinary glasses.

FIG. 13 is a front view of auxiliary glasses according to another embodiment of the present invention, as viewed from the eyepiece direction.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 lens-like portion 2 bridge portion 20 shaft 21 guide hole 3 swing arm 30 base end 31 hook portion 32 retaining member 33 convex or concave portion 34 gear portion 35 high friction member 36 pin 37 guide 38 mover 39 guide hole 4 glasses REFERENCE SIGNS LIST 40 eyeglass frame 41 eyeglass lens 42 eyeglass frame bridge 5 connecting rod 50 one piece 51 the other piece 52 fitting part 53 fitted part 54, 55 hook part 6 bridge part 7 mounting base 70 hook part 8 swing arm 80 base edge

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-21622 (JP, U) JP-A 8-18915 (JP, Y1) JP-A 44-15393 (JP, Y1) (58) Field (Int.Cl. ⁶ , DB name) G02C 7/08-7/16 G02C 9/00-9/04 G02C 1/00-1/08 G02C 5/00-5/12

Claims (7)

(57) [Claims] The present invention comprises a pair of lenticular portions and a bridging portion connecting the lenticular portions, and the bridging portion moves up and down a predetermined angle range in a certain friction braking state. A pair of swing arms 3 and 3 that can swing in the directions are pivotally mounted, and the distal ends of the swing arms 3 and 3 are located laterally away from the center of the bridge portion 2, respectively. 3. A pair of auxiliary glasses, wherein a hook portion 31 for hooking the eyeglass frame 40 is formed at a distal end of the eyeglass frame 3. 2. A base end 30 of the swing arm 3, 3.
The base ends 30 are meshed with each other by gears 34 formed on both base ends 30, 30.
The auxiliary glasses according to claim 1. 3. A base end 30 of the swing arm 3, 3.
The base ends 30 are connected to each other via rubber or other arc-shaped high friction members 35 formed on the base ends 30, 30, respectively. The auxiliary glasses according to claim 1, wherein the auxiliary glasses are in contact with each other. 4. A base end 3 of each of the swing arms 3, 3.
Numerals 0 are pivotally attached to positions symmetrically laterally away from the center of the bridge portion 2, respectively.
The two overlap with each other at an appropriate intermediate position in the longitudinal direction thereof. At the overlapping portion, a pin 36 projects from one of the swing arms 3, and both of the swing arms 3 and 3 from the other swing arm 3. The auxiliary glasses according to claim 1, wherein a guide 37 formed of a long hole or a groove is formed to guide the pin 36 in a movable state when swinging. 5. Both base ends 30 of each of the swing arms 3, 3 are mounted on a single shaft 20 so as to overlap with a substantially central portion of the bridge portion 2, and are provided near the shaft 20. Is mounted such that the mover 38 penetrating the overlapping portion of the base ends 30, 30 and the bridge portion 2 is positioned on a vertical line passing through the axis of the shaft 20,
Guide holes 39 each formed of an elongated hole through which the movable element 38 is guided in a movable state when the swing arms 3 and 3 swing are formed in an arc shape at an overlapping portion of the base end portions 30 and 30, respectively. The bridge portion 2 is formed with a guide hole 21 formed of a long hole along which the movable member 38 is guided in a movable state when the swing arms 3 and 3 swing. The auxiliary glasses according to claim 1. 6. A pair of lenticular parts 1, 1; a connecting rod 5 having an upwardly curved elasticity connecting the upper parts of the two lenticular parts 1, 1; and the two lenses below the connecting rod 5. An elastic or arc-shaped bridge portion 6 for connecting the first and second portions 1, 1 with each other. The connecting rod 5 is separated at the middle in the longitudinal direction, and the tip of one piece 50 of the connecting rod 5 is provided. The connecting portion 5 has a fitting portion 52 formed of a hole or a groove having a predetermined length along the length direction of the piece 50, and a predetermined portion fitted into the fitting portion 52 at the tip of the other piece 51 of the connecting piece 5. Auxiliary spectacles having a fitting portion 53 having a length, and hook portions 54, 55 for hooking to the spectacle frame 40 are formed on upper portions of the pieces 50, 51 of the connecting rod 5, respectively. . 7. A pair of left and right swing arms 8 and 8 are provided on a mounting base 7 having a hook portion 70 at an upper portion for hooking the eyeglass frame 40 so as to be able to swing up and down a predetermined angle range in a certain friction braking state. Auxiliary spectacles, characterized in that a lens-shaped part (1) is formed at the tip of each swing arm (8).