JPH0616932U - Hinge structure of eyeglasses - Google Patents

Abstract

(57) [Summary] [Purpose] Maintaining an appropriate contact pressure on the contact surface of the ear hook of the temple, taking into account the deviation and the weight of the hook, it is possible to have a stable fitting with a good balance at all times. [Structure] The connecting portion provided on the shaft and the connecting portion provided on the temple are rotatably connected by a pivot, and torsion coil springs 8 and 8a are externally fitted to the pivot, and the torsion coil spring 8, Each end of 8a is fixed to each of the connecting portions, and the temple is elastically biased toward the folding side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hinge structure of eyeglasses that maintains a proper contact pressure on the contact surface of the ear hook of the temple, considers the displacement and the weight of the temple, and can always provide a well-balanced and stable fitting.

[0002]

[Prior art]

 In spectacles, the role of the frame is to first hold the lens in place, secondly to stably fix the spectacles in front of the face, and thirdly to move the face. That is, there is little variation in the wearing position.

That is, it is necessary to fit well at the back of the nose and ears, which are the contact parts between the frame and the face, and whether or not the nose pad and ear hook of the frame are well fitted, especially whether or not the vine is fit. Careful attention should be paid to whether or not the contact surface of the ear hook is adjusted to a uniform contact pressure, as this will affect the slippage and the weight of the hook, and for this reason the kinematics of the vine must be considered. If the balance is not good, stable fitting will not be possible.

However, in the conventional eyeglasses, the connection structure with the front frame, which constitutes the frame of the eyeglasses, can be freely opened and closed by the hinge, and the opening angle of the temple can be adjusted by the hinge portion as much as possible. The left and right opening angles are the same, and adjustments are made so that the ears are not pressed hard during wearing, and if the shape is lost due to the passage of the wearing period, it can be fixed in front of the face stably unless it is corrected. There was a drawback in that the wearing position fluctuated and slipped even when the subject was moved or moved even when the face was moved, and the focus was not fixed and the user did not always feel comfortable wearing.

[0005]

[Problems to be solved by the device]

 The present invention does not drop due to the appropriate contact pressure of the contact surface of the ear hook of the temple so that it fits the wearer, and it is possible to maintain a well-balanced and stable fitting even when the wear period elapses. It is intended to provide a hinge structure.

[0006]

[Means for Solving the Problems]

 The present invention is based on the above-mentioned conventional technology, and in view of the problems that it cannot be stably fixed in front of the face and that the wearing position fluctuates and shifts due to movement of the face, the temples of the glasses are elastically attached to the folding side. In order to urge, the connecting portion provided on the tip and the connecting portion provided at the tip of the temple are rotatably connected by a pivot, and a torsion coil spring is externally fitted to the pivot, and each of the torsion coil springs is fitted. By fixing the end parts to each of the connecting parts, the contact pressure of the contact surface of the ear hook part of the temple which is appropriate for the wearer is always maintained, and the above-mentioned deficiency is not solved. is there.

[0007]

[Action]

 In the present invention, since the temple is elastically biased toward the folding side by the torsion coil spring, the eyeglasses can be stably fixed in front of the face, and the wearing position varies even when the face is moved. It does not fall off.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is spectacles made of metal such as titanium alloy or plastic, and the spectacles 1 are a front frame 2 on which a lens is mounted, and the front frame 2 It is composed of temples 5 and 5a, which are connected to hinges 3 and 4a at the left and right ends of the hinge with hinges 4 and 4a.

The hinges 4 and 4a are composed of connecting portions 6, 6a, 7 and 7a provided at the tips of the wisdom 3 and 3a and the temples 5 and 5a, and the connecting portions 6, 6a, 7 and 7a are substantially U-shaped in section. In addition to being formed into a shape, shaft holes are provided at the upper and lower ends thereof, and the ends of the connecting portions 6, 6a, 7 and 7a are assembled in a staggered manner, and the torsion coil springs 8 and 8a are externally fitted. The end portions of the pivots 9 and 9a are inserted and fixed in the shaft holes.

The torsion coil springs 8 and 8a are configured such that one end of the torsion coil springs 8 and 8a is connected to the connecting portions 6 and 6a and the other end thereof is connected to the connecting portion 7 so as to elastically bias the temples 5 and 5a toward the folding side. , 7a.

In this embodiment, the connecting portions 6, 6a, 7, 7a provided at the tips of the wisdom 3, 3a and the temples 5, 5a are assembled by alternately twisting the ends of the connecting portions 6, 6a, 7, 7a. Although the temples 5 and 5a are elastically biased toward the folding side in the above, the invention is not limited to such a method, and the joints 6 and 6a of the wisdom 3 and 3a and the joints 7 and 5a of the temples 5 and 5a are not limited thereto. , 7a are fitted, and one end of the torsion coil springs 8 and 8a is fixed to the connecting portions 6 and 6a, and the other end is fixed to the connecting portions 7 and 7a, and 5 and 5a are elastically biased toward the folding side. You may do so.

Next, the operation of the hinge structure of the eyeglasses according to the present invention will be described. The temples 5 and 5a of the eyeglasses 1 are elastically biased toward the folding side by the torsion coil springs 8 and 8a. It can be fixed stably in front of the face, and even if the face is moved, the wearing position does not change and the gap does not drop.

When the spectacles 1 are removed, the torsion coil springs 8 and 8a elastically urge the temples 5 and 5a toward the folding side, so that the folded state is maintained normally.

[0014]

[Effect of device]

 In short, according to the present invention, the connecting portions 6 and 6a provided on the tips 3 and 3a of the front frame 2 and the connecting portions 7 and 7a provided at the tips of the temples 5 and 5a are rotatably connected by the pivots 9 and 9a. , The ends of the torsion coil springs 8 and 8a are connected to each other so that the torsion coil springs 8 and 8a are fitted onto the pivots 9 and 9a and the temples 5 and 5a are elastically biased toward the folding side. Since it is fixed to each of the parts 6, 6a, 7, 7a, the contact surface of the ear hooks of the vines 5, 5a can maintain a proper contact pressure as if worn by the wearer, and the glasses 1 are placed in front of the face. It can be fixed stably, and even if you move your face, the wearing position does not change and it does not fall off, and you can always have a stable fitting with a good balance even after the wearing period.

When the spectacles 1 are removed, the torsion coil springs 8 and 8a elastically urge the vines 5 and 5a toward the folding side, so that the folds can be maintained in a normal folded state, and Its practical effect is extremely great because it can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view of eyeglasses having a hinge structure for eyeglasses according to the present invention.

FIG. 2 is an enlarged perspective view showing a hinge structure of eyeglasses according to the present invention.

FIG. 3 is a front view of FIG.

[Explanation of symbols]

 2 Front frame 3,3a Wisdom 5,5a Vine 6,6a Connecting part 7,7a Connecting part 8,8a Torsion coil spring 9,9a Pivot

Claims (1)

[Scope of utility model registration request] 1. A connecting part provided at the tip of a front frame and a connecting part provided at the tip of a temple are rotatably connected by a pivot, and a torsion coil spring is externally fitted to the pivot and the temple is folded. A hinge structure for eyeglasses, characterized in that each end of a torsion coil spring is fixed to each of the connecting portions so as to elastically urge the side.