Improvement of universal hinge spectacles

Abstract

To improve the usability of universal hinge spectacles (Patent No.7194317) while utilizing their characteristics, that is to improve the usability by reducing fastening force of an adjusting screw for regulating frictional torque of a spherical surface, and to facilitate storage by making the thickness as thin as possible in a temple-folded state, and to enable a user him / herself to easily make adjustments for wearing comfort that are conventionally performed in a store.SOLUTION: A spherical hinge structure is obtained by using an adjusting screw to integrate a sphere provided at an end of a frame, and a vertically halved socket, and a joint integrating the connection part of the socket with a temple, and the frictional torque of the spherical hinge is regulated according to the fastening force of the adjusting screw.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a structure of eyeglasses. [Background technology]

[0002] Although regular glasses are made to fit the shape of each person's face, it is nearly impossible to make glasses that fit perfectly. The main reason is that the left and right ears are not perfectly symmetrical with respect to the nose. Also, the elasticity of the glasses themselves decreases over time, and people's faces change, so maintenance is essential. Patent No. 7194317 addressed this problem. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7194317 [Non-patent literature]

[0004] [Non-Patent Document 1] [Development of Comfortable Eyeglass Frames] Journal of the Japan Society of Mechanical Engineers 2009.12 p36~37 Summary of the Invention [Problem to be solved by the invention]

[0005] While taking advantage of the features of the universal hinge eyeglasses (Patent No. 7194317), the tightening force of the adjustment screw that determines the friction torque of the spherical surface of the spherical hinge is reduced, improving ease of use. To make storage easy by making the thickness of the temples as thin as possible when folded. [Means for solving the problem]

[0006] The socket connections and adjustment screws that make up the spherical hinge are arranged front to back around the sphere. one Effect of the Invention

[0007] The spherical hinge of Patent No. 7194317 is configured with the ball, adjustment screw, and pin arranged in that order. When they are equally spaced, the pressure on the ball caused by the tightening force of the adjustment screw is halved, whereas in the present invention it is doubled. As a result, sufficient friction torque of the spherical surface can be obtained with a light tightening force.

[0008] The spherical hinge of Patent No. 7,194,317 is configured with a ball, adjustment screw, and pin arranged in that order, and the thickness of the glasses when the temples are folded is determined by the position of the pin and is inevitably thicker. According to the present invention, the rotation axis of the temple can be made coaxial with the adjustment screw, so the thickness can be reduced. [Brief description of the drawings]

[0009] [Figure 1] Side view of Example 1 [Diagram 2] Plan view of the first embodiment [Diagram 3] Side view of Example 2 [Figure 4] Plan view of Example 3 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. EXAMPLES

[0011] In FIG. 1, 1 denotes a frame, and frame 1 has rod 1a and ball 1b. Ball 1b, socket 2A, socket 2B, connecting bolt 3a, and adjustment screw 5a form a spherical hinge portion. The 3a connecting bolt passes through the 2Aa and 2Ba holes and fastens the upper and lower sockets together to form a connection. The 4a bush is inserted into the 2Ab hole, and the 4b bush is inserted into the 2Bb hole, and the 5a adjustment screw passes through and fastens them. The 6a joint is made of a plate with a U-shaped cross section and has a 6b long hole on the side. The 4a bush fits into the 6c hole, and the 4b bush fits into the 6d hole.

[0012] In Fig. 2, temple 7 is integrated with joint 6 by connecting bolt 8a and nut 8b. The position of temple 7 is adjusted forward and backward by long hole 6b. Rotation of temple 7 in the opening direction is stopped by protrusion 2Ac. The friction torque of the spherical hinge is determined by the tightening force of the 5a adjustment screw. EXAMPLES

[0013] FIG. 3 is intended to show the differences from [Example 1]. In [Example 1], the upper and lower sockets are integrated by the connecting bolt 3a, but the function of the connecting bolt 3a is performed by the hook part of the socket itself. The socket 10a has a hook part 10b of width B in Figure 4, which engages with the socket 11b to form the connecting part. The socket 10a has a boss portion 10c, and the socket 11a has a boss portion 11c, which functions as the bushes 4a and 4b of [Example 1] and into which the holes 13c and 13d of the joint 13a are fitted. In FIG. 4, the temple 14 is integrated with the joint 13a by a connecting bolt 15a and a nut 15b, and is adjusted forward and backward in the same manner as in [Example 1]. The friction torque of the spherical hinge is determined by the tightening force of the adjustment screw 12a. The rotation of the temple in the opening direction is stopped by the protrusion 10c. [Industrial Applicability]

[0014] Used in the eyeglass manufacturing industry. [Explanation of symbols]

[0015] 1 Frame 2A Socket 2B Socket 3a Connecting Bolt 4a Bush 5a Adjustment Screw 6a joint 7 temple 8a connecting bolt 10a socket 11b socket 12a Adjustment screw 13a Joint 14 Temple 15a Connecting bolt

Claims

[Claim 1] These eyeglasses are characterized in that a ball provided at the end of the frame, a joint that integrates the upper and lower halves of the socket, the connecting part of the socket, and the temples are integrated with an adjustment screw to form a spherical hinge structure, and the friction torque of the spherical hinge is determined by the tightening force of the adjustment screw.

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