JP2530348Y2 - Glasses hinge connector - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to parts for eyeglasses, and more particularly to a connector for connecting hinges of eyeglasses.

(Prior Art) A screw has conventionally been used to connect a hinge interposed between a front portion of a pair of glasses and a temple.

(Problem to be solved) However, the hinges of the glasses are frequently opened and closed,
The connecting screws are easy to loosen and often fall off during use. To prevent this, the screws must be continually re-tightened to prevent the loosening, but since the hinge screws are extremely small, it was impossible for the spectacles user to constantly pay attention to this. The purpose of this invention is to solve the above-mentioned conventional problems related to the connection mechanism of the eyeglass butterfly scheme, and it is possible to extremely easily connect the hinges of the eyeglasses, and it is possible to frequently open and close the case by using screws. It is an object of the present invention to provide a novel eyeglass hinge connecting device that has no possibility of loosening.

(Means for Solving the Problems) In the present invention, the hinges 1a and 1b have an outer diameter that is substantially the same as the inner diameter of the pivotal support hole 3 and one edge thereof is formed as a projecting piece 6 that projects laterally. A metal cylinder 4 having a spring property and provided with a slit 5 in the longitudinal direction and having a length substantially equal to the thickness of the overlapping portion 2 of the hinges 1a and 1b;
A round bar split pin 8 having an outer diameter that can be inserted into the inside of the cylinder, a flange 9 that protrudes laterally at one end, and a locking projection 11 that can engage with the inner wall edge of the cylindrical body 4 at the other end. The above problem is to be solved by forming a pair of eyeglass hinges.

(Operation) First, the cylindrical body 4 is inserted into the pivot holes 3 of the eyeglass hinges 1a and 1b, and the overhanging pieces 6 are brought into contact with the hinge side walls. Thereafter, the round bar split pin 8 is inserted into the cylindrical body 4 from the end of the cylindrical body 4 on which the overhanging piece 6 is not provided, and the locking projection 11 is engaged with the inner wall edge of the cylindrical body 4. To stop. Since the round bar split pin 8 has a spring property and is urged to expand to the side, it is elastically engaged with the cylindrical body 4 by its locking projection 11, and the round bar split pin 8 The hinges 1a and 1b are surely pivotally supported by the flange portion 9 and the overhanging piece 6 of the cylindrical body 4.

 This operation does not require any tools such as a screwdriver.

In addition, since no thread groove or the like is used at all, loosening during use cannot occur mechanically, and removal can be performed easily.

(Embodiment) FIG. 1 is an enlarged cross-sectional view of an embodiment of the connecting device for eyeglass hinges according to the present invention, and FIG. 2 is an enlarged perspective view of a main part thereof exploded.

In the drawing, reference numerals 1a and 1b denote eyeglass hinges, and a pivot hole 3 is formed in the overlapping portion 2 thereof.

On the other hand, reference numeral 4 denotes a metal cylindrical body provided with a slit 5 in the longitudinal direction and provided with a spring property.
It has substantially the same length as the thicknesses a and 1b, and one edge protrudes laterally to form a protruding piece 6. The width of the slit 5 is about 0.2 mm to 0.3 mm in this embodiment. The inner wall end on the side of the projecting piece 6 is chamfered obliquely to form a tapered portion 7.

Next, reference numeral 8 denotes a round bar split pin which is inserted into the cylindrical body 4, a flange 9 is provided at one end, and a main body is provided with a slit.
It is divided into two parts by 10 and is provided with a spring property so as to expand outward, and a pair of locking projections 1 is provided at the other end.
The locking projections 11, 11 have an outer diameter enough to pass through the inner wall of the cylindrical body 4 when the locking projections 11, 11 are pressed inward.

In this embodiment, the round bar split pin 8 is formed of synthetic resin, but may be formed of metal. In the figure, reference numeral 12 denotes a packing which is bent around the outer periphery of the cylindrical body 4 to give an appropriate resistance to the rotation of the hinge and to prevent the temple from flapping at the time of attaching / detaching the glasses or during storage. is there.

(Effects of the Invention) This invention has the configuration as described above, can easily connect the hinges of the glasses, there is no possibility of loosening during use, and there is no possibility that the hinges come off unexpectedly while wearing the glasses. Is extremely practical. In addition, the structure is simple, suitable for mass production, and has an effect that can contribute to cost reduction of eyeglass manufacturing.

[Brief description of the drawings]

FIG. 1 is an enlarged vertical sectional view of an embodiment of the connecting device for eyeglass hinges according to the present invention, and FIG. 2 is an enlarged perspective view showing an exploded main part thereof. 1a, 1b… Glasses hinge 2… Overlapping part 3… Pivot hole 4… Cylindrical body 5… Slit 6… Overhanging piece 7… Tapered part 8… Round bar split pin 9 …… Flange part 10 …… Slit, 11 …… Locking projection 12 …… Packing

Claims (3)

(57) [Scope of request for utility model registration] 1. An eyeglass hinge 1a, 1b having substantially the same outer diameter as the inner diameter of the pivot hole 3, one end of which is formed as a projecting piece 6 extending laterally, and a slit 5 is provided in the longitudinal direction. And
A metal cylinder 4 having a spring property and having substantially the same length as the thickness of the overlapping portion 2 of the hinges 1a and 1b; having an outer diameter that can be inserted inside the cylinder 4, A connecting member for eyeglass hinges, comprising: a protruding collar portion (9); and a round bar split pin (8) having a locking projection (11) at the other end capable of engaging with an inner wall edge of said cylindrical body (4). 2. The eyeglass hinge connecting device according to claim 1, wherein the packing 12 is bent around the outer periphery of the cylindrical body 4. 3. The connector according to claim 2, wherein the round bar split pin is made of metal.