JP3814722B2 - Eyeglass frame and eyeglass hinge - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spectacle frame characterized by a folding structure of a vine and a spectacle hinge for the same.
[0002]
In the description of the present specification, a portion supporting a pair of lenses and a portion connecting them are referred to as a frame, and a portion extending from both ends of the frame and hooked to an ear is referred to. In addition, the left / right, top / bottom and front / rear directions of the spectacle frame are displayed based on the person wearing the spectacles on the face.
[0003]
[Prior art and its problems]
The eyeglass frame generally has a structure that shifts downward along the frame surface so that the left and right vines do not overlap in the front-rear direction when the vine is folded toward the frame. For this purpose, one hinge is arranged with an inclined axis so that the vine is folded slightly diagonally downward.
[0004]
By the way, the hinge for folding a vine has a case where a vine is divided in the middle and provided over both, and a case where it is provided over a frame and a vine. When the eyeglass frame is tilted with the hinge axis inclined, the former does not affect the appearance, but the latter causes the following problems in appearance.
[0005]
In other words, if the vine is not shifted downward when folding, the vine 200 folded later as shown in FIG. 18 hits the vine 200 folded first and cannot be folded completely. 19 and 20 show the back and front in a state where the vine 200 overlaps the front and rear. In order to completely fold the vine to be folded later, the hinge axis may be inclined as described above. However, in the resin spectacle frame, the cored bar extends backward from one of the pair of butterfly pieces constituting the hinge 300, and the vine 200 is manufactured so as to surround the cored bar with resin. The core bar is generally flattened at a portion close to the butterfly piece and thinned at a portion far from the butterfly piece into a wire shape. The vine 200 has a flat cross-sectional shape along the flat portion of the cored bar.
[0006]
The core of the hinge 300 is manufactured to extend perpendicular to the hinge axis and parallel to the plane containing the axis. Therefore, when the axis of the hinge 300 is inclined as described above, the flat portion of the core metal is also inclined, and as a result, the major axis in the flat cross-sectional shape of the vine 200 is also inclined. In general, the left and right edges 100R and 100L of the frame are often designed to coincide with the outer surface of the temple 200. Therefore, in that case, the edge of the frame is inclined as the flat cross section of the vine 200 is inclined.
[0007]
As shown by the alternate long and short dash line X in FIG. In general, the spectacle frame looks better when it is tilted so that the width of the frame is narrowed downward at the vine attachment portion, and tilting in the opposite direction is not desirable. This undesired inclination in addition to the inclination of the flat cross section of the vine needs to be strengthened as the width of the vine 200 increases, which is a design problem.
[0008]
Therefore, when giving priority to the design of a wide vine spectacle frame, the vine folding direction is generally horizontal on both the left and right sides, and products are often produced without eliminating the overlap in the front-rear direction during folding. However, during the distribution process and user storage, the incomplete folding state of the vine due to the overlap in the front-rear direction may be forced to be completely folded and placed for a long time. Then, as a result of excessive force acting for a long time, the frame and the vine remain distorted, and when the vine is opened, it is supported that it cannot be opened symmetrically.
[0009]
[Problems to be solved by the invention]
The present invention solves the above-mentioned problems of the prior art, and provides a spectacle frame that prevents the vines from overlapping each other when the vine is folded, and that does not impair the design of the vine attachment portion. With the goal.
[0010]
[Means for Solving the Problems]
To achieve the above object, the present invention provides a frame for holding a spectacle lens, a pair of vines extending from both ends of the frame, and a hinge for rotatably coupling the vine to the frame. The hinge comprises: a wing-side hinge piece embedded and fixed at a base end portion of the vine; a frame-side embedded portion embedded and fixed at both ends of the frame; and the frame-side embedded portion A frame-side butterfly piece attached to the frame, a fixing screw for fixing the frame-side butterfly piece to the vine-side butterfly piece, and the vine-side member and the frame-side member, when the vine is completely opened The frame side butterfly piece and the frame side embedded portion are provided with a positioning pin and a positioning recess for tightly receiving the positioning pin. One and the other are provided so that they can be closely fitted to each other, and the frame-side embedded portion has the above-mentioned A female screw hole is formed to be screwed into a female screw, and the frame-side butterfly piece is a threading hole for loosely receiving the mounting screw so that the frame-side butterfly piece can be rotated around the positioning pin with respect to the frame-side embedded portion. The present invention provides a spectacle frame characterized in that a hole is formed.
[0011]
In order to achieve the above object, the present invention also provides a vine side butterfly piece that is embedded and fixed in the temple of the spectacles, a frame side embedded portion that is embedded and fixed in the frame of the spectacles, and a frame side that is attached to the frame side embedded section. By using the butterfly piece, the fixing screw for fixing the frame-side butterfly piece to the vine-side butterfly piece, and being fixed to one of the vine-side member and the frame-side member, when the vine is completely opened, And a frame-side butterfly piece and a frame-side embedded portion are provided with one of the positioning pin and the positioning recess that closely receives the positioning pin, and a frame-side butterfly piece and a frame-side embedded portion. The frame-side embedded portion is formed with a female screw hole that engages with the mounting screw, and the frame-side butterfly piece includes the frame-side butterfly piece. Loosen the mounting screw so that it can be rotated around the positioning pin with respect to the side buried part. It is intended to provide a spectacle hinges, characterized in that through hole for receiving are formed.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The same or similar parts in the drawings used for description may be denoted by the same reference numerals and description thereof may be omitted.
[0013]
1 and 2 show a bottom view of a spectacle frame according to an embodiment of the present invention as viewed from below and a rear view as viewed from the side of a folded vine, respectively. The spectacle frame includes a frame 1 for holding a spectacle lens, a pair of vines 2 extending from both ends of the frame, and hinges 3 and 3 ′ for rotatably coupling the vines to the frame. It has. Normally, the left vine is folded first, so in this embodiment, the left hinge 3 is the eyeglass hinge according to the present invention, and the right hinge 3 'is a conventional hinge. However, the right hinge can be the one according to the present invention, the left hinge can be the conventional one, and the left and right eyeglass hinges can be used.
[0014]
Details of the vicinity of the attachment portion of the hinge 3 according to the embodiment of the present invention are shown in FIGS. FIG. 3 shows a state before the frame-side butterfly piece 50 and the frame-side embedded portion 40 are combined, and FIG. 4 is a view of each horizontal cross-section viewed from below after the combination. 5 is a cross-sectional view taken along the line VV in FIG. 4, and FIG. 6 is a view in which the wing side butterfly piece 30, the frame side wing piece 50, and the frame side embedded portion 40 are taken out and viewed from the direction of the arrow VI in FIG. is there. FIG. 7 is a view of the vine 2 and the vine side butterfly 30 embedded in the vine 2 as seen from the direction of the arrow VII in FIG. 5.
[0015]
As shown in the figure, the hinge 3 includes a vine side butterfly piece 30 embedded and fixed at the base end portion of the vine 2, a frame side embedded portion 40 embedded and fixed at both ends of the frame, and the vine side hinge piece 30. And a frame-side butterfly piece 50 attached to the frame-side embedded portion.
[0016]
The wing-side butterfly piece 30 is partially embedded in the resin of the vine 2, and the other part protrudes inward of the vine 2, and the bearing extends in a forked manner from the front end of the support piece 31 to the front. And a bearing portion 32 having a hole 33. The resin buried portion of the vine side butterfly piece 30 is brazed to a core metal 21 that is surrounded by the vine resin and extends.
[0017]
The frame-side butterfly piece 50 includes a bearing plate 52 having a bearing hole 53 that is inserted between the forked portions of the bearing portion 33 of the temple-side butterfly piece 30, and a support plate 51 that extends in the vertical and horizontal directions at the front end of the bearing plate 52. , And a positioning pin 54 protruding forward from the front end surface of the support plate 51. A through hole 55 through which a mounting screw 60 described later is passed is formed at a position near the slip of the support plate 51. As will be described in detail later, the through hole 55 is a long hole that loosely fits the screw portion of the mounting screw 60 so as to be movable in the vertical direction.
[0018]
The frame-side embedded portion 40 includes a plate-like support portion 41 extending in the up / down / left / right direction, and an anchor portion 42 extending in a bifurcated manner forward from the support portion and extending in the left / right direction at the front end. The support portion 41 is formed with a positioning recess 43 that closely receives the positioning pin 54 of the frame-side butterfly piece 50 and a female screw hole 44 that is screwed into the mounting screw 60.
[0019]
The frame-side butterfly piece 50 is coupled by inserting the bearing plate 52 between the bifurcated portions of the bearing portion 33 of the hanging butterfly piece 30 and screwing it into the bearing holes 33 and 53 through the shaft screw 65. The frame-side butterfly piece 50 also has the positioning pin 54 inserted into the positioning recess 43 so that the support plate 51 is applied to the support portion 41 of the frame-side embedded portion 40, and the mounting screw 60 is passed through the through hole 55 to the female screw hole 44. By screwing, the frame side embedded portion 40 is fixed.
[0020]
In the temple 2, a recess 22 that receives the head of the mounting screw 60 and a part of the support plate 51 is formed on the end surface in contact with the frame 1. The recess 22 is sized to closely receive the head of the mounting screw 60 and the end of the support plate 51 that is close to the sill, and the receiving end edge is rounded to facilitate introduction of these portions. When the temple 2 is fully opened, the recess 22 closely receives the head of the mounting screw 60 and the end of the support plate 51 near the temple, and restrains the shake of the temple 2. Therefore, in this embodiment, the head portion of the mounting screw 60 and the end portion of the support plate 51 that are close to each other serve as a steady-state convex portion 70 that fits into the concave portion 22.
[0021]
This spectacle frame functions as follows. In the state in which the vine 2 is folded, as shown in FIG. 2, the left vine 2 is slightly lowered from the horizontal folding position. Thereby, the right vine 2 can be completely folded without being obstructed by the left vine 2. That is, the left vine 2 moves from the horizontal folding position indicated by the one-dot chain line in FIG. 2 to the lower position indicated by the solid line, so that the right vine 2 is indicated by the solid line from the position indicated by the one-dot chain line in FIG. Folding to the complete folding position is possible. This is because the vine 2 is slightly movable up and down in the folded state. On the other hand, when the vine 2 is fully opened, the vine 2 is firmly held so as not to move up and down with respect to the frame 1.
[0022]
This is due to the following action of the eyeglass hinge 3. The temple 2 is attached to the frame 1 with an attachment screw 60 by inserting the positioning convex portion 54 of the frame-side butterfly piece 50 into the positioning concave portion 43 of the frame-side embedded portion 40. The attachment screw 60 passes through the through hole 55 of the frame side butterfly piece 50 and is screwed into the female screw hole 44 of the frame side embedded portion 40. The through hole 55 is a long hole that is long in the vertical direction. Therefore, the temple 2 can move up and down over the range of the through hole 55 around the positioning convex portion 54. 8 and 9 show the frame-side embedded portion 40, the frame-side butterfly piece 50, and the mounting screw 60 taken out from the portion shown in FIG. 5, and FIG. 8 shows that the temple 2 is generally horizontal. FIG. 9 shows a state where the vine 2 is rotated downward at an angle θ. If this rotation range is set appropriately, the vines folded after folding the vines can be prevented from overlapping in the front-rear direction. The rotation angle θ is about 5 degrees in this example, but an appropriate value is determined depending on the width of the vine.
[0023]
On the other hand, when the vine is completely opened, the head of the mounting screw 60 and the end of the support plate 51 close to the sill (the anti-rest protrusion 70) are closely attached to the recess 22 formed at the end of the frame 2 on the frame side. Insert. As a result, the vine that has been movable in the range of the vertically long through hole 55 is prevented from moving in the vertical direction, and the open posture is kept constant.
[0024]
Therefore, when the vine 2 is opened, the vine 2 is firmly held in the frame 1 and can be used in the same manner as normal glasses. When the vine 2 is folded, the pair of vines 2 do not overlap in the front-rear direction, so that the vine can be completely folded. In this case, since it is not necessary to incline the rotation axis of the hinge, the design of the vine attachment portion is not impaired.
[0025]
10 to 13 show another embodiment of the eyeglass hinge according to the present invention. In this example, the steady rest convex portion 70 a is provided separately from the mounting screw 60. That is, the steady rest convex part 70a is directly attached with the lower part buried in the frame 1 instead of the frame side buried part 40. On the temple 2, a concave portion 22a having a shape corresponding to the steady-state convex portion 70a is formed. In relation to these, the mounting screw 60 is passed through the through hole 55a provided on the opposite side of the positioning projection 54 from the steady projection 70a in the frame-side butterfly piece 50a. The frame side buried portion 40a is provided with a female screw hole 44a at a position corresponding to the through hole 55a. Other structures are the same as in the previous embodiment.
[0026]
This spectacle hinge also functions in the same manner as the previous embodiment. That is, at the position where the temple 2 is tilted to the frame side, the temple 2 can move up and down over the range of the through hole 55 which is a long hole with the positioning convex portion 54 as the center. On the other hand, when the vine is completely opened, the steady rest convex portion 70a is closely fitted into the concave portion 22a formed at the frame side end portion of the vine 2. As a result, the vine 2 is prevented from moving in the vertical direction, and the open posture is held constant. Therefore, when the vine 2 is opened, the vine 2 is firmly held on the frame 1, and when the vine 2 is folded, the pair of vines 2 do not overlap in the front-rear direction, so that the vine can be completely folded.
[0027]
14 to 17 show still another embodiment of the eyeglass hinge according to the present invention. In this example, the formation positions of the steady rest convex portion 70b and the concave portion 45 are opposite to those in the embodiment shown in FIGS. That is, the steady rest convex part 70b protrudes from the end surface facing the frame 1 of the vine 2, and the concave part 45 is provided in the frame 1 in a position and shape corresponding to this. Other structures are the same as in the previous embodiment.
[0028]
This eyeglass hinge also has the same positional relationship with the steady-state convex concave portion, and thus functions in the same manner as in the previous embodiment. When the temple 2 is opened, the temple 2 is firmly attached to the frame 1. There is no overlap in the front-rear direction when folding the vine 2 so that the vine can be folded completely.
[0029]
The present invention can be modified in various ways without being constrained by the embodiment described above. For example, the positioning pins 54 and the positioning recesses 43 can be provided in the frame-side embedded portion 40 and the frame-side butterfly piece 50 in reverse positions. The through-holes 55 and 55a of the frame-side butterfly piece 50 through which the attachment screw 60 is passed can have various shapes such as a circular shape and a rectangular shape in addition to a long hole as long as the vertical movement necessary for the attachment screw 60 can be given. In addition, the shape of the structural members such as the frame-side butterfly piece, the vine-side butterfly piece, the frame-side embedded portion, the positioning pin, the steady-state convex portion, and the mounting screw may be various other shapes as long as they have the necessary functions. it can. Furthermore, if the frame and the vine are made of resin, the processing is easy, but the present invention is not limited to this and may be made of metal.
[0030]
【The invention's effect】
As described above, according to the present invention, a spectacle hinge having the following effects can be provided.
[0031]
The member on the frame side with respect to the hinge axis is composed of the frame-side butterfly piece and the frame-side embedded portion, which are closely fitted with a positioning pin in the positioning recess, and are connected by a mounting screw. The mounting screw is screwed into the female screw hole of the frame side embedded portion through the through hole of the frame side butterfly piece. The through hole is formed to loosely receive the mounting screw. Therefore, the frame-side butterfly piece can rotate around the positioning pin together with the vine-side butterfly piece. As a result, when the frame and the vine are respectively attached to the frame-side butterfly piece and the vine-side butterfly piece, the vine can be rotated in the vertical direction with respect to the frame.
[0032]
Further, an anti-swaying convex portion that can closely fit into a concave portion provided on the other of these members when the vine is completely opened is fixed to one of the vine side member and the frame side member. Therefore, when the vine is completely opened, the above-mentioned vertical movement of the vine is restrained by tightly fitting the steady-state convex portion into the concave portion. As a result, the vine is prevented from moving in the vertical direction, and the open posture is kept constant.
[0033]
Thus, when the vine 2 is opened, the vine 2 is firmly held on the frame, and when the vine is folded, the pair of vines do not overlap in the front-rear direction, so that the vine can be completely folded. And since this function can be obtained without tilting the rotation shaft of the hinge, the design of the vine attachment portion is not impaired.
[0034]
The spectacle frame according to the present invention is such that a frame and a vine are attached to the spectacle hinge and a concave portion for tightly receiving the steady rest convex portion is provided on the frame or the vine. Therefore, a spectacle frame that achieves the above-described effects described for the spectacle hinge is realized.
[Brief description of the drawings]
FIG. 1 is a bottom view of an embodiment of an eyeglass frame according to the present invention as viewed from below.
2 is a rear view of the eyeglass frame shown in FIG. 1. FIG.
3 is an exploded view of the vicinity of a hinge mounting portion in the spectacle frame shown in FIG. 1, and a horizontal section thereof seen from below. FIG.
4 is a view seen from the same direction as FIG. 3 in a state where the spectacle frame shown in FIG. 3 is assembled.
5 is a view showing the eyeglass frame shown in FIG. 4 in a cross section taken along the line VV in FIG. 4;
6 is a view of the main part of the eyeglass hinge shown in FIG. 4 as viewed from the direction of the arrow VI in FIG. 4;
7 is a view of the vine side portion of the eyeglass frame shown in FIG. 5 as viewed from the direction of arrow VII in FIG.
8 is an explanatory diagram of a main part when the vine is folded horizontally in the eyeglass frame shown in FIG. 5. FIG.
FIG. 9 is an explanatory diagram of a main part when the vine is folded slightly lower than the horizontal in the eyeglass frame shown in FIG. 5;
FIG. 10 is an exploded view of a vicinity of a hinge mounting portion in a spectacle frame according to another embodiment of the present invention, and a horizontal section thereof viewed from below.
11 is a view seen from the same direction as FIG. 10 in a state where the spectacle frame shown in FIG. 10 is assembled.
12 is a view showing the eyeglass frame shown in FIG. 10 in a cross section taken along line XII-XII in FIG.
13 is a view of the vine side portion of the eyeglass frame shown in FIG. 12 as viewed from the direction of arrow XIII in FIG.
FIG. 14 is an exploded view of the vicinity of a hinge mounting portion in a spectacle frame according to still another embodiment of the present invention, and shows a horizontal cross section viewed from below.
15 is a view seen from the same direction as FIG. 14 in a state where the spectacle frame shown in FIG. 14 is assembled.
16 is a view showing the eyeglass frame shown in FIG. 15 in a cross section taken along line XVI-XVI in FIG. 15;
17 is a view of the vine side portion of the eyeglass frame shown in FIG. 16 as viewed from the direction of arrow XVII in FIG.
FIG. 18 is a bottom view showing a conventional spectacle frame as viewed from below.
19 is a rear view of the eyeglass frame shown in FIG.
20 is a front view of the eyeglass frame shown in FIG. 18. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Frame 2 Vine 3, 3a Hinge 30 Vine side butterfly piece 40 Frame side embedded part 43 Positioning recessed part 44 Female screw hole 50 Frame side butterfly piece 51 Support plate 52 Bearing plate 54 Positioning pin 60 Mounting screw 70 Stabilizing convex part

Claims (2)

A spectacle frame comprising a frame for holding a spectacle lens, a pair of vines extending from both ends of the frame, and a hinge for pivotally coupling the vine to the frame,
The hinge includes a vine side butterfly piece embedded and fixed at a base end portion of the vine, a frame side embedded portion embedded and fixed at both ends of the frame, and a frame side butterfly piece attached to the frame side embedded portion. A fixing screw for fixing the frame-side butterfly piece to the vine-side butterfly piece, and a fixing screw fixed to one of the vine-side member and the frame-side member, and provided on the other of these members when the vine is fully opened. And a steady-state convex portion that can be closely fitted into the concave portion,
The frame-side butterfly piece and the frame-side embedded portion are provided so that one and the other of the positioning pin and the positioning recess for tightly receiving the positioning pin can be closely fitted to each other,
The frame-side embedded portion is formed with a female screw hole that is screwed to the mounting screw,
The frame-side butterfly piece has a through hole for loosely receiving the mounting screw so that the frame-side butterfly piece can be rotated around the positioning pin with respect to the frame-side embedded portion. flame. A vine side butterfly piece embedded and fixed in a spectacles vine, a frame side embedment portion embedded and fixed in a spectacle frame, a frame side butterfly piece attached to the frame side embedment portion, and the frame side butterfly piece The fixing screw used for fixing to the side butterfly piece and the fixing member to one of the vine side member and the frame side member are used so that when the vine is fully opened, the concave portion provided on the other of these members is tightly closed. With a steady rest that can be fitted to
The frame-side butterfly piece and the frame-side embedded portion are provided so that one and the other of the positioning pin and the positioning recess for tightly receiving the positioning pin can be closely fitted to each other,
The frame-side embedded portion is formed with a female screw hole that is screwed into the mounting screw,
The frame-side butterfly piece has a through hole for loosely receiving the mounting screw so that the frame-side butterfly piece can be rotated around the positioning pin with respect to the frame-side embedded portion. hinge.

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