JP3178078U - Eyeglass frames - Google Patents

Abstract

A durable spectacle frame is provided.
In a spectacle frame, a connecting member that is fixed to a temple 20 at one end side and is rotatably provided at a front end 10 at the other end side so that the temple 20 is rotatably connected to the front 10. Since the connecting member 30 is made of polyetherimide, the temple 20 can be widened to the outside to some extent without overloading the temple 20, and the durability is improved without being broken.
[Selection] Figure 1

Description

  The present invention relates to a spectacle frame.

  Generally, the temples in the spectacle frame are provided so as to be rotatable with respect to the front. Therefore, by folding the temple, the glasses can be made compact and stored in a glasses case or the like.

  Here, when the user tries to attach or detach the glasses, the free end side of the temple inevitably tends to be unreasonably widened, and this causes a heavy load on the base end portion of the temple, causing a failure of the spectacle frame. And there is a problem that deformation easily occurs.

  In order to solve such a problem, a spectacle frame using a so-called spring hinge in which a spring such as a coil spring is provided at the base end portion of the temple as a hinge that rotatably connects the front and the temple is disclosed (for example, (See Patent Documents 1 and 2).

  By using the spring hinge, the free end side of the temple can be expanded to the side opposite to the folding direction to some extent without applying a large load to the base end portion of the temple. Further, when the spring hinge is used, when the user puts on the glasses, the face is tightened with an appropriate pressure by the temple, and the comfort is good.

  However, the spring of the spring hinge is composed of metal parts, and when the glasses are used for many years, the spring does not work and the turning operation of the temple may not be performed smoothly. This is because the spring of the spring hinge may deteriorate or corrode due to sweat or the like.

JP 2001-290108 A JP 11-326844 A

  Therefore, an object of the present invention is to provide a durable spectacle frame.

  The present invention employs the following means in order to solve the above problems.

That is, the spectacle frame of the present invention is
It has a connecting member that is fixed to the temple on one end side and is pivotally provided on the front end on the other end side so that the temple is pivotally connected to the front,
The connecting member is made of polyetherimide.

  According to the present invention, since the front and the temple are connected by the connecting member made of flexible polyetherimide, the temple can be expanded outward to some extent without overloading the temple. In this way, since the temple is hardly loaded, it is hard to break and durable.

  Further, since the elastic force does not act on the temple by the spring, the temple can be opened and closed more smoothly than the one using the spring hinge. In addition, since the structure is simple compared to the one using a spring hinge, processing and assembly in the manufacturing stage are easy, and cost reduction can be realized. In addition, since the metal portion is reduced, there is an allergy resistance effect.

  The connecting member may be provided with a groove portion parallel to the axial direction of the rotation center of the connecting member.

  As a result, the temple can be greatly widened to the outside, and is less likely to break, further improving durability.

In addition, the groove is
It is good to provide in each of the inner surface and outer surface of the said connection member.

Furthermore, the groove portion is
One may be provided on the inner surface, and two may be provided on the outer surface across the inner surface.

  By providing the groove portions on both sides of the connecting member in this manner, the temple can be greatly expanded on the outside as compared with the case where the groove portions are provided only on one side, which makes it difficult to break and further improves durability.

  The connecting member may be curved so as to be recessed inward.

  The connecting member may be curved so as to swell outward on the front side and curved so as to be recessed inward on the temple side.

  Since the connecting member is curved in this way, the temple can be expanded more widely on the outside, and it is difficult to break, and the durability is further improved.

  Further, the temple and the front are separated from each other when the temple is open, and the connecting member includes a restricting portion that restricts an outward rotation operation when the temple is open. Features.

  With such a configuration, when a force that further spreads outward is applied in a state where the temple is open, the load is applied to the connecting member. Since the connecting member to which the load is applied is bent, the temple can be further spread outward from the position where the rotation operation is restricted.

  As described above, according to the present invention, the durability of the spectacle frame can be improved.

FIG. 1 is a top view of a spectacle frame with a temple in a deployed position. FIG. 2 is a view of the eyeglass frame as viewed from the inside. FIG. 3 is a view for explaining a method of fixing the connecting member. FIG. 4 is a view of the connecting member and the wisdom as viewed from above. FIG. 5 is a view of the connecting member of Example 2 as viewed from above. FIG. 6 is a view of the connecting member of Example 3 as viewed from above. FIG. 7 is a view of the connecting member of Example 4 as viewed from above.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be exemplarily described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the invention to those unless otherwise specified. .

(Structure of eyeglass frame)
With reference to FIGS. 1 and 2, the configuration of the eyeglass frame according to the first embodiment will be described. Here, hereinafter, a position where the temple is folded is defined as a folding position, and a position when the user wears glasses is defined as a development position. FIG. 1 is a view of a spectacle frame with a temple in the unfolded position as viewed from above a user wearing spectacles (hereinafter simply referred to as “upper”). FIG. 2 is a view of an eyeglass frame on the left side of a user wearing glasses (hereinafter, simply referred to as the left side, and the opposite side as the right side) as viewed from the inside.

  As shown in FIGS. 1 and 2, the spectacle frame according to the first embodiment includes a front 10, a temple 20, and a connecting member 30 that constitute a front portion of the spectacle frame.

  The front 10 includes a pair of left and right rim portions (lens frame bodies) 11, a bridge 12 that connects the pair of rim portions 11, a pair of pads 13 that contact the nose to support glasses, and an end portion of the rim portion 11. It is a frame provided with a pair of wisdoms 14 provided. The material of the front 10 is made of titanium, carbon, acetate, alloy or the like.

  The temple 20 is provided so as to be rotatable with respect to the front 10 between a folded position where the temple 20 is folded and a deployed position when wearing glasses. Similar to the front 10, the material of the temple 20 is made of titanium, carbon, acetate, alloy, or the like.

  As shown in FIGS. 1 and 2, the connecting member 30 connects the front 10 and the temple 20. Specifically, the connecting member 30 is fixed to the temple 20 at one end side, and is provided rotatably at the end 14 of the front 10 at the other end side, thereby connecting the temple 20 and the front 10 to each other. 20 is rotatable between the folding position and the unfolded position.

(Details of configuration of connecting member)
Furthermore, with reference to FIG. 3, FIG. 4, the connection member which is the characteristic structure of this invention is demonstrated in detail. FIG. 3 is a view for explaining a method of fixing the left connecting member. FIG. 4 is a view of the left connecting member and wisdom from above, and is a view before screw fastening. 3 and 4 is a perspective view of the screw hole.

  In Example 1, the connecting member 30 is made of polyetherimide (PEI), which is an amorphous thermoplastic resin. Therefore, the connecting member 30 is flexible and can be bent flexibly to some extent.

  Here, a method of fixing the connecting member 30 and the temple 20 in the first embodiment will be described. In order to fix the connecting member 30 to the temple 20, a fixing member 31 shown in FIG. 4 is used. The fixing member 31 is a metal part such as an alloy.

As shown in FIG. 4, two screw holes 30 a in which female threads are cut are provided on one end side of the connecting member 30. The fixing member 31 includes a main body portion 31a and two cylindrical portions 31b in which female screws provided to protrude from the main body portion 31a are cut on the inner peripheral surface. Temple 2
0 is provided with two through holes 20a into which the cylindrical portion 31b can be inserted. Then, the cylindrical portion 31 b of the fixing member 31 is inserted into the through hole 20 a of the temple 20, the temple 20 is sandwiched between the one end side of the connecting member 30 and the main body portion 31 a of the fixing member 31, and the screw from the inside direction of the connecting member 30. The connecting member 30 and the temple 20 are fixed by fastening 31c.

  Next, a method for providing the connecting member 30 in the first embodiment so as to be rotatable with respect to the front 10 will be described. As shown in FIG. 3, the connecting portion 14a of the wisdom 14 includes plate-like portions 14b and 14c that face each other in the axial direction of the rotation center, and the plate-like portions 14b and 14c have the same axial center. Screw holes 14b1 and 14c1 are provided, respectively. And the connection member 30 is provided with the fitting part 30c fitted between the two plate-like parts 14b and 14c with which the connection part 14a is equipped, and when this is fitted, screw hole 14b1, 14c1 and an axial center Have the same screw hole 30c1. And the fitting part 30c is fitted into the plate-like parts 14b and 14c, and the connecting member 30 is fastened to the front 10 by fastening the screw 14d from above with the screw hole 30c1 and the screw holes 14b1 and 14c1 being overlapped. It can provide so that rotation is possible.

  Next, regulation of the rotation operation of the connecting member 30 in the first embodiment will be described. As described above, the connecting member 30 is provided so as to be rotatable with respect to the wisdom 14 of the front 10. Then, the rotation operation of the temple 20, that is, the rotation operation of the connecting member 30 is restricted by a restricting portion 30 b provided on the connecting member 30. Here, as shown in FIG. 4, the restricting portion 30 b refers to a portion of the connecting member 30 that is not fitted into the plate-like portions 14 b 1 and 14 c 1 and protrudes outward. The restricting portion 30b restricts the rotation of the connecting member 30 to the outside by contacting the receiving portion 14e that is the side surface of the connecting portion 14 with the connecting member 30 open.

  In the eyeglass frame according to the first embodiment, when the temple 20 is opened, the temple 20 and the wisdom 14 of the front 10 are not in contact with each other and are separated from each other. Therefore, when a force is further applied to the outer side from the state in which the temple 20 is opened, the front 10 does not restrict the rotation of the temple 20, and the front 10 and the temple 20 do not directly exert loads.

  As described above, the outward rotation of the temple 20 is restricted by the restricting portion 30b of the connecting member 30. When a force is applied to the outside, the load is applied to the connecting member 30. And since the flexible connection member 30 bends, the temple 20 can be spread outward to some extent without overloading the temple 20 and the front 10. Further, since the connecting member 30 is made of a resin softer than metal, it does not overload the wisdom 14 of the front 10. As described above, the eyeglass frame according to the first embodiment is less likely to be broken and durable because the temple 20 and the front 10 are hardly loaded.

(Linking member groove)
Furthermore, in Example 1, as shown in FIGS. 3 and 4, the connecting member 30 is more easily bent by providing the connecting member 30 with the groove 32. That is, by providing the groove 32, the durability can be further improved. The groove portion 32 is provided so as to communicate an upper surface and a lower surface that are parallel to the axial direction of the rotation center of the connecting member 30 and perpendicular to the axial direction.

  In the first embodiment, one groove is provided on the inner surface of the side surfaces of the connecting member 30, and two groove portions are provided on the outer surface. The number of the groove portions is not limited to this, but if the grooves are provided on both the inner and outer surfaces of the connecting member 30 as in the first embodiment, the temples can be further expanded outward.

Hereinafter, the example from which the shape of a connection member differs is demonstrated. The connecting members shown in the following examples are
The connecting member shown in the first embodiment can be applied as it is.

(Example 2)
FIG. 5 is a view of the connecting member of Example 2 as viewed from above. As shown in FIG. 5, the connecting member 30 of the second embodiment is not provided with a groove unlike the first embodiment.

(Example 3)
FIG. 6 is a view of the connecting member of Example 3 as viewed from above. As shown in FIG. 6, the connecting member 30 of the third embodiment is curved so as to be recessed inward in the vicinity of the front 10. In this way, the temple 20 can be expanded to the outside more greatly because the connecting member 30 is curved so as to be recessed inward.

Example 4
FIG. 7 is a view of the connecting member of Example 4 as viewed from above. As shown in FIG. 7, the connecting member 30 of the fourth embodiment is curved so as to bulge outward on the front 10 side, and is curved so as to be recessed inward on the temple 20 side. That is, the connecting member of Example 4 is S-shaped when viewed from above. Thus, since the connecting member 30 is S-shaped when viewed from above, the temple 20 can be further expanded outward.

10 front 11 rim 12 bridge 13 pad 14 wi 20 temple 30 connecting member 32 groove

Claims (7)

It has a connecting member that is fixed to the temple on one end side and is pivotally provided on the front end on the other end side so that the temple is pivotally connected to the front,
The eyeglass frame, wherein the connecting member is made of polyetherimide.   The spectacle frame according to claim 1, wherein the connecting member is provided with a groove portion parallel to an axial direction of a rotation center of the connecting member. The groove is
The spectacle frame according to claim 2, wherein the spectacle frame is provided on each of an inner surface and an outer surface of the connecting member. The groove is
The eyeglass frame according to claim 3, wherein one eyeglass frame is provided on the inner side surface and two are provided on the outer side surface across the inner side surface.   The spectacle frame according to claim 1, wherein the connecting member is curved so as to be recessed inward.   The spectacle frame according to claim 1, wherein the connecting member is curved so as to swell outward on the front side, and is curved so as to be recessed inward on the temple side. In a state where the temple is open, the temple and the front are separated from each other,
The spectacle frame according to any one of claims 1 to 6, wherein the connecting member includes a restricting portion that restricts an outward rotation operation when the temple is open.

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