JPS6222133B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, each ear hook handle can be freely unfolded and folded with respect to a lens frame of eyeglasses via a ball bearing.

As is well known, most of the ear hook handles in conventional eyeglass frames are made by fitting and combining the concave and convex portions of male and female bearings protruding from the lens frame and the ear hook, respectively, and skewering pins or screws to these combined parts. What is it?

However, as the ear hook handle is repeatedly opened and closed, the thin pin shaft in the bearing part of this type of product wears quickly, causing play in the bearing part, causing the pin shaft to gradually float up and fall off, and the ear handle to come off. I was also feeling sad.

The present invention eliminates the above-mentioned disadvantages and provides an eyeglass frame that can be worn accurately for a long time.

Now, the embodiment will be described in detail below with reference to the drawings. Each arm frame 2 is fixed to both ends of a lens frame 1 made of metal or synthetic resin, and each sphere 3 is protruded from the inner surface of the arm frame 2 through a support rod T. A guide groove H of the support rod T is provided in the outer half of the diagonal half of the support rod T in a bowl shape projecting diagonally inward from the base end of the ear hook handle 4 made of metal or synthetic resin, and along the center of the back surface. At the same time, fit the drilled bearing half 5 into the other diagonal half of each sphere 3, overlap each base with the inner surface of the base of the ear hook handle 4, and tighten the screw P and nut N.
Each holding frame 6 is made of metal or synthetic resin and is fitted with a bowl-shaped bearing half 7 that projects diagonally inward from the end of each presser frame 6 that is fixed to the holding frame 6.

As described above, the present invention consists of a bowl-shaped bearing half provided at the end of the ear hook handle on each sphere protruding from the inner surface of each arm frame at both ends of the lens frame, and a half bowl-shaped bearing attached to the inner side of the base of the ear hook handle. Since the bowl-shaped bearing halves at the end of the presser frame are fitted together in an interlocking manner, the opening and closing of the ear hook handle is performed by the bearing holding the sphere, so the pin will not wear out as it is used like a conventional pin shaft. As a result, there is no need to worry about rattling the ear hook handle, and it always opens and closes smoothly and can be worn accurately, and there is less wear on the bearing, so it does not break or come off like conventional pins. It has the advantage of being able to be used for a long time without any worries, and is also easy to manufacture and assemble, and is a new and useful invention as a ball bearing device for an ear handle in a spectacle frame.

[Brief explanation of the drawing]

The drawings show an embodiment, in which Fig. 1 is a plan view of the main part of a spectacle frame equipped with the device of the present invention with the ear handle opened, and Fig. 2 is a plan view of the main part of the eyeglass frame equipped with the device of the present invention when the ear handle is folded. FIG. 3 is an exploded plan view of the arm frame, ear hook handle and presser frame, and FIG. 4 is an end view of the base of the ear hook handle. 1 is a lens frame, 2 is an arm frame, 3 is a sphere, 4 is an ear handle, 5 and 7 are bowl-shaped halves, 6 is a presser frame, T is a support rod, and H is a guide groove.

Claims (1)

[Claims] 1 Each sphere is provided protruding from the inner surface of each arm frame at both ends of the lens frame via a support rod, and each half of each of these spheres is provided in a bowl shape protruding inward from the base end of each ear hook handle. In addition, each bearing half having a guide groove for each of the above-mentioned support rods is fitted on the back side, and the base is overlapped with the inner surface of the base of the ear hook handle, and the end of each presser frame is inwardly fitted to the other half of each sphere. A ball bearing device for an ear-hook handle in an eyeglass frame, characterized in that each ear-hook handle can be freely unfolded and folded with respect to a lens frame by fitting protruding bowl-shaped bearing halves.