JP3115134U - Front frame for front glasses - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a front frame that can be detachably attached to the front part of the front part of a front type glasses through a magnet so that magnets attached to arms provided on both sides do not fall off. .
SOLUTION: Arms 11 and 11 having rings 14 and 14 formed at the tips are provided on both sides of the front frame 2, a groove 15 is formed on the outer periphery of a disk-shaped magnet 12, and the ring 14 is fitted into the groove 15. Are installed.
[Selection] Figure 2

Description

  The present invention relates to a front frame provided with the magnet in order to stably attach the front frame to the front part of the front part of the glasses.

  Conventionally, glasses with a front frame attached to the front part of the glasses are often used. As is well known, there are many cases in which near-sighted people need sunglasses or they are both presbyopia and near-sighted. In such cases, the front frame of sunglasses is attached to glasses for near-sightedness. For example, a front frame in which a presbyopia lens is placed in glasses for myopia is used.

  By the way, there are several types of conventional type front frames, but the most typical front frames are a type having a magnet and a type having a key. However, although the magnet type is a tributary today, the magnet is attached to the front frame side and is fixed to the front portion using the magnetic force of the magnet.

  4A and 4B show general front-mounted glasses that have been widely used in the past, in which FIG. 4A shows glasses, and FIG. 4B shows a front frame (b) attached to the front portion (c) of the glasses (A). . Magnets (e) and (e) are attached to the Yoroi (d) and (d) provided on both sides of the front part (c), and Yoroi (f) provided on both sides of the front frame (b), (F) also has magnets (g) and (g).

  Therefore, the front frame (b) is superimposed on the front of the front part (c), and the magnet (g) is attracted to the magnet (e) and attached. Of course, some contrivance is made so that the front frame attached via the magnets (e) and (g) is not misaligned. “Glasses” according to Utility Model Registration No. 3081271 corresponds to this front-type eyeglass frame.

  In addition, the “detachable spectacle mounting device” according to Japanese Patent No. 2997418 has a structure in which a receiving portion is provided at the end portion of the front frame, a magnet is attached to the receiving portion, and a front frame is placed on the receiving portion and is attracted by the magnet. It consists of. In recent years, small and powerful magnets have been developed, and the front frame (b) is attached via the magnets (e) and (e) provided on both arms (d) and (d) of the front part (c). The front frame (b) attached to the front part (c) can be removed by pulling it apart, but the front frame (b) is deformed by being pulled by a strong magnet (e), (e), and at the same time The front part (c) is also deformed.

  FIG. 5 shows a magnet mounting structure in a conventional front frame corresponding to the “detachable spectacle mounting device” according to Japanese Patent No. 2997418. As shown in FIG. 5A, an arm (chi) is provided on both sides of the front frame (b), and a holding tool (re) is provided at the tip of the arm (chi). A magnet (g) is fitted and attached to the holder (re), but the magnet (g) may come off from the holder (re) when the front frame (b) is attached or detached.

FIG. 5B shows a cross section when the magnet (g) is attached to the holder (re). The magnet (g) is fixed via an adhesive applied to the inner surface of the holder (re), but the adhesive decreases with time and the magnet (g) falls off as time passes. End up. In particular, a strong magnet (g) is strongly attracted to the front part (c), so that it is detached from the holder (re) with a force when pulled away from the front part (c). The holder (re) shown in (b) is provided with a hole in the upper part, and an adhesive is applied to the hole to fix the magnet (g). In this case as well, the adhesive deteriorates over time. The magnet falls off.
“Glasses” related to Utility Model Registration No. 3081271 "Removable glasses mounting device" according to Japanese Patent No. 2997418

  Thus, the magnet mounting structure of the front frame of the conventional front glasses has the above-mentioned problems. The problems to be solved by the present invention are these problems, and provide a front frame that can be stably mounted without the magnets coming off.

  The front frame according to the present invention has a structure that can be attached to the front part of the glasses via a magnet, and the basic form is the same as the conventional one. The magnet used is a disk (column) and has a groove on its outer periphery. And it has the structure which attached the magnet to the ring of the arm tip extended on both sides of a front frame via this slot. For example, when the arm on both sides of the front frame is made of a metal wire, the tip of the arm is bent to form a ring. And a disk-shaped magnet is attached by fitting this ring in a groove | channel.

  On the other hand, when the front frame is made of resin, the arm is also made of resin, and a ring is also provided at the end of the arm. The magnet is fitted and attached to this ring. When the rib protrudes on the inner peripheral surface of the ring and this rib is inserted into the magnet outer peripheral groove, or conversely, the rib is provided on the outer periphery of the magnet, and this rib is attached to the inner peripheral surface of the ring It may fit into a groove provided on the surface. In either case, the magnet can be fitted with the resin ring heated. On the other hand, it is also possible to embed magnets simultaneously when forming the arm and the ring.

  The magnet of the front frame of the present invention has a groove on its disk-shaped outer periphery, and a ring formed of a metal wire fits into this groove, and in the resin front frame, the rib on the inner peripheral surface of the ring fits into the groove. Mounted. Therefore, the magnet does not fall off the ring, and the magnet is attracted to the front portion by hanging the front frame on the front portion of the glasses. And even if a magnet is pulled to the front part side when removing the front frame, it does not come off from the ring. Since no adhesive is used as in the prior art, there is no deterioration due to the passage of time, and there is no fear of falling off even if a strong magnet is used.

FIG. 1 is an embodiment showing a front-mounted glasses according to the present invention, (a) is a plan view of the front-mounted glasses, (b) is a front view of the front-mounted glasses, (c) is a front view of the front frame, d) represents a side view of the front glasses. In the figure, reference numeral 1 denotes a front part of the glasses, 2 denotes a front frame, and the front part 1 has both rims 3 and 3 connected by a connecting member 4, and outer rims 3 and 3 are braided on the outer side of the rims 3 and 3. The cranes 7 and 7 are attached to the endors 5 and 5 via joints 6 and 6 so that they can be folded. In addition, nose pads 8 are attached to the lower side of the connecting member 4 of the front portion 1.

  On the other hand, the sunglass lens 9, 9 is connected to the front frame 2 by a connecting member 10, and arms 11, 11 are attached to the outside of the sunglasses lens 9, 9. This front-type eyeglass is configured such that the front-end frame 2 is sunglasses, and the sunglasses lenses 9 and 9 are directly connected by the connecting member 10 without being fitted to the rim, and the arms 11 and 11 are also directly connected to the sunglasses lenses 9 and 9. doing.

  The front frame 2 having no rim is configured as frameless glasses, and there are various connection structures between the connecting member 4 and the sunglasses lenses 9 and 9. In the front frame 2 shown in FIG. The outer periphery of the sunglasses lenses 9 and 9 is sandwiched by being inserted and folded. Similarly, the connecting structure between the sunglasses lens 9 and the arm 11 also inserts the tip of the arm into the hole and turns it back to sandwich the outer periphery. Here, on the lens surface, a groove is formed in which the connecting member 4 and the wire of the arm 11 are partially engaged. Therefore, both the sunglasses lenses 9 and 9 are arranged symmetrically without changing the orientation, Similarly, the arms 11 and 11 can be positioned symmetrically.

  And the magnets 12 and 12 are attached to the tips of the arms 11 and 11, and magnetic forces attracting each other on the other magnets 13 and 13 provided on the braids 5 and 5 brazed on both sides of the front portion 1 are attracted. It is generated and stopped. Here, any one of the magnets 12 and 13 attached to the arm 11 and the armor 5 may be a magnetic body attracted by the magnet.

  FIG. 2 shows a case where a magnet 12 is attached to the tip of the arm 11. A ring 14 is formed by bending the tip of an arm 11 made of a thin metal wire, and a magnet 12 is attached to the ring 14. The magnet 12 has a substantially disk shape, and a groove 15 is provided on the outer periphery thereof, and a ring 14 is fitted in the groove 15. The ring 14 fits into the groove 15 and tightens the magnet 12, and the magnet 12 is attached to the ring 14 without rattling.

  The ring 14 shown in FIG. 2A has a partial opening, but the ring 16 in FIG. 2B is closed without an opening. In any ring form, the magnet 12 is held by being fitted into the outer peripheral groove 15 of the magnet 12. Here, the attachment method of the magnet 12 is not particularly limited. In the case of (a), the opening of the ring 14 can be opened to fit the magnet 12 in the ring 14, and in the case of (b), the ring 16 is attached to the magnet. 12 outer circumferential grooves 15 can be wound.

  FIG. 3 shows an embodiment in which the arm 11 is made of resin, and a resin ring 17 is formed at the tip of the arm. A rib 18 protrudes from the inner peripheral surface of the ring 17, and this rib 18 can be fitted into the outer peripheral groove 15 of the magnet 12. FIG. 3B shows a cross-sectional view of the state in which the magnet 12 is fitted to the ring 17, but the magnet 12 is connected to the groove 17 by fitting a rib 18 formed so as to protrude from the inner peripheral surface of the ring 15. Fixed to.

  The method of fitting the magnet 12 to the ring 17 is performed in a state in which the ring 17 is heated. If the ring 17 is cooled to room temperature, the rib 18 is tightened in a state in which the rib 18 is fitted in the groove 15. Moreover, the ring 17 with a magnet is completed by setting the magnet 12 in a metal mold | die and carrying out injection molding.

Front glasses with a front frame. A specific example of an arm with a magnet attached. A specific example of an arm with a magnet attached. Conventional magnet mounting structure. Conventional magnet mounting structure via adhesive.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front part 2 Front frame 3 Rim 4 Connecting member 5 Yoroi 6 Joint 7 Tsuru 8 Nose pad 9 Sunglasses lens
10 Connecting member
11 Arm
12 magnets
13 Magnet
14 rings
15 groove
16 rings
17 rings
18 ribs

Claims (6)

In the front frame that can be detachably attached to the front part of the front of the front spectacles via a magnet, an arm with a ring formed at the tip is provided on both sides of the front frame, and a groove is formed on the outer periphery of the disk-shaped magnet. A front frame comprising a ring fitted into the groove. In a front frame that can be detachably attached to the front of the front of the front glasses via a magnet, an arm having a ring formed at the tip is provided on both sides of the front frame, and a groove is formed on the outer periphery of the disk-shaped magnetic body. A front frame comprising a ring fitted in the groove. 3. The front frame according to claim 1, wherein the arm is made of a thin metal wire, and the ring is formed by bending the tip of the arm. 3. The front frame according to claim 1, wherein the arm is made of resin, and the ring is formed simultaneously with the arm. A plastic front frame that can be detachably attached to the front of the front glasses via a magnet. Arms with rings formed at the ends are provided on both sides of the front frame, and ribs are provided on the outer periphery of the disk-shaped magnet. A front frame characterized by protruding and forming a rib into a groove formed on the inner peripheral surface of the ring. A plastic front frame that can be detachably attached to the front of the front glasses via a magnet. Arms with rings on the ends are provided on both sides of the front frame. A front frame characterized in that a rib is formed so as to protrude and fitted into a groove formed on an inner peripheral surface of the ring.

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