JPH0610342Y2 - Pat core fastener for eyeglass frame and its fastening structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a structure for fixing a putt core of an eyeglass frame to a putt support box.

(Prior Art) The structure of a nose pad of a general eyeglass frame is as shown in FIG. 7, and the pad core (b) and the pad support box (c) embedded / fixed in the pad (a) are screw (d). ) Is connected. The pad support box (c) is fixed to the end of a pad leg (not shown) brazed to the front frame, and the screw hole of the pad core (b) is machined to be slightly larger than the screw diameter. (A) is given a certain degree of oscillating property.
In this way, in order to fix the pad core (b) to the pad support box (c), it is clear from the figure that the pad core (b) and the pad support box (c) have screw holes and screw tightening. The work must be done, and the manufacturing man-hours are large and the cost is high. When the screw (d) is used, the screw thread may be crushed by strong screw tightening, or the screw once tightened may loosen and the pad (a) may fall off. Such small screws (d) often loosen and fall off due to vibration during transportation and ultrasonic waves when cleaning the eyeglass frame.

Of course, the pad core is not limited to the above-mentioned screw as the fastening means, but the ball head / latch member is attached to the screw hole portion of the pad core, and the elastic member urges the ball head / latch member outward to form the hole in the pad support box. There is also a structure in which the pad core is fixed to the pad support box by using a sandwiching ring. However, it is not easy to attach the ball head / latch member or the sandwiching ring to which the elastic force is applied in the pad support box, and even if the ball head / latch member or the attachment ring is attached once, the frequency of detachment from the pad support box is low. It is very expensive and stable fastening is impossible.

(Purpose of the Invention) As described above, the above-described problems exist in attaching the pad core to the pad support box. Therefore, the present invention is a technology developed for the purpose of solving these problems, and the fastening method is very simple, and there is almost no danger of coming off once it is fastened. Provide a wearing structure.

(Structure of the present invention) The pad core fixing device and the fixing structure of the eyeglass frame according to the present invention have the following features in order to solve the above problems. That is, the basic structure of the pad core and the pad support box in the pad core fixing structure of the present invention is the same as the conventional one, and the pad core must be able to swing a little while the pad core is loosely fitted in the pad support box. I have to. A locking hole for the fastener is provided at a position corresponding to a conventional screw hole, and the locking piece of the fastener is interposed across both the locking holes of the pad core and the pad support box. The locking pieces are formed so as to project to both sides of the fastening piece, and are connected by a U-shaped fastening piece, and the fastening piece bends inward of the pad support box and forms a boundary with the pad core. Intervene. Here, the locking piece of the stopper has a shape that fits into the locking hole, and the pad core can be easily inserted into the pad support box and is not removed.

Embodiments according to the present invention will be described below in detail with reference to the drawings.

(Embodiment) FIG. 8 is a specific example of a general metal eyeglass frame. As shown in FIG. Three
Are connected via a hinge 4. A pad foot 7 extends from a rim 6 that holds the lens 5 at the center of the front frame 1, and a nose pad 8 is attached to the end of the pad foot 7. By the way, FIG. 1 shows a cross section of the nose pad 8, and the pad core 10 embedded in the pad 9 is shown in FIG.
Are fastened in the pad support box 11 via fastening devices 12. The pad core 10 has an embedded plate 13, and the embedded plate 13
Forms a core body 14 which is embedded in the pad 9 at the same time when the pad 9 is molded and is loosely fitted in the pad support box 11, and the core body 14 has a locking hole having an inner diameter of a certain size. 15 penetrates (see FIG. 2). Also, the pad support box 11 is shown in FIG.
As shown in FIG. 3, the pad support box 11 has a recess space 16 sufficient to allow the core body 14 of the pad core 10 to be loosely fitted, and locking holes 18 and 18 penetrating the opposite side walls 17 and 17 are formed. The pad foot 7 extends from the other side surface 19.

Here, the locking holes 15 and 18 do not necessarily have to be in a penetrating state. On the other hand, the fastening tool 12 for fastening the core body 14 to the recessed space 16 of the pad support box 11 is shown in FIG.
It is bent in a letter shape, and the fastening piece 2 is located at the center of both fastening pieces 21, 21.
1 has locking pieces 22, 22 protruding on both sides. The locking piece 22 is a circular protruding member, and has a front surface 23 and a back surface 2.
4 is inclined at a constant angle with respect to the fastening piece 21, and is indicated by AA in FIG.
If it is represented by an enlarged sectional view, it has a shape as shown in FIG. Therefore, the locking piece 22 protruding from the fastening piece 21 has an upper locking surface 25 on the front side and a lower locking surface 26 on the back side. By the way, the pad core 10 shown in FIG.
Is inserted into the recessed space 16 of the pad support box 11, and the fastener 12 is interposed between the pad support box 11 and the pad core 1 from the pad support box 11.
This is to prevent 0 from leaving. The fastener 12 is made of a flexible material such as resin or the like, and may be formed into a shape as shown in FIG. 4, but may be formed into a flat plate and bent as shown in FIG. The pad core 10 is set in the recessed space 16 of the pad support box 11 and in this state.
The core body 14 is inserted. The pad core 10 comes into contact with the back surface 24 of the locking piece 22 protruding to the back side (inside), and the back surface 24 is inclined, so that the locking piece 22 is pressed outward. 22 is fitted in the locking hole 15 of the core body 14. Once fitted, the upper locking surface 25 is in the locking hole 18 of the pad support box 11, and the lower locking surface 26 is in the locking hole 15
The pad core 10 is locked to the pad support box 11
Do not leave.

Although the shape of the locking piece 22 is not limited to the shape shown in FIG. 5, the locking piece 22 must be fitted in both locking holes 15 and 18 to prevent separation, and the core body 14 is inserted. The back surface 24 needs to be inclined or curved so that the back surface 24 can be easily moved. Needless to say, the recessed space 1 with the outer periphery of the core 14
If it is inserted in 6, the surface 23 may be inclined.

As described above, the pad core fixing device and the fixing structure for the eyeglass frame according to the present invention form the locking pieces protruding to both sides of the U-shaped locking pieces, and the locking pieces The following effects can be obtained by engaging the core with the locking holes formed in the pad support box.

(Effect) (1) The fastener of the present invention is equivalent to a conventional screw, but the production cost can be very low compared to the screw. For example, if a flexible resin is used, it can be easily manufactured by injection molding. Further, as shown in FIG. 6, the fastening of the pad core using the fastening device can be done by setting the pad core in the recessed space of the pad support box in advance and inserting the pad core in that state. Of course, conversely, it is also possible to insert it into the recessed space in a state in which the fastener is fitted to the pad core, and in any method, the number of steps is significantly reduced as compared with the screw tightening work.

(2) Then, if it is once fastened through the fastening tool, the locking piece of the fastening tool fits into the locking hole of the core body and the pad support box to remove the pad core. Prevent completely.

[Brief description of drawings]

1 is an embodiment showing a pad core fastening structure according to the present invention, FIG. 2 is a pad core, FIG. 3 is a pad support box, FIG. 4 is a fastening device, and FIG. Is an enlarged view taken along the line AA of FIG. 4, FIG. 6 is a method of inserting a pad core, FIG. 7 is a conventional fastening structure, and FIG. 8 is a general metal eyeglass. There is. 1 ... Front frame, 2 ... Yoroi, 3 ... Crane, 4 ... Hinge, 5 ... Lens, 6 ... Rim, 7 ... Pat foot, 8 ... Nose pad, 9 ... Pat, 10 ...... Pat core, 11 …… Pat support box, 12 …… Fastener, 13 …… Embedded plate, 14 …… Core body, 15, 18 …… Locking hole, 16 …… Recess space, 17 …… Side wall, 19 ... side surface, 21 ... stopping piece, 22 ... locking piece, 23 ... front surface, 24 ... rear surface, 25 ... upper locking surface, 26 ... lower locking surface.

Claims (2)

[Scope of utility model registration request] 1. A dent support space of a pad support box of a nose pad,
A U-shaped fastener for loosely fitting a core of a pad core to prevent the pad core from coming out of the recessed space, which is interposed between the pad support box and the pad core. Of the core body and the locking hole provided on the side wall of the pad support box are projected on both front and back sides of the fastening piece of the fastening device, and at least the front surface or the back surface of the fastening piece is provided. A pad core stopper for an eyeglass frame, characterized in that one of the surfaces is inclined or curved with respect to the stopper piece. 2. A pad core fastening structure in which a core of a pad core is loosely fitted in a recessed space of a pad support box of a nose pad and the pad core is fastened to the pad support box via a fastener. The stopper body is provided with locking holes on the side wall of the pad core and the side wall of the pad support box, is bent in a U shape, and has a locking piece having locking pieces protruding on both front and back sides of both locking pieces as the core body. A pad core fixing structure for an eyeglass frame, characterized in that the locking piece is fitted into the locking hole by being interposed between the pad support boxes.