JP2008145535A - Front and method for manufacturing front - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a front which is excellent in quality by reducing the number of components and reducing the number of manufacturing steps, and to provide a method for manufacturing the same. <P>SOLUTION: The front 10 is configured such that the front 10 including a pair of eyewires 11, a bridge section 12 linking the eyewires 11, and endpieces 13 respectively disposed in the pair of the eyewires 11 are obtained by subjecting a sheet of plate material to blanking and bending. As a result, the number of components is reduced and, in addition, the number of the manufacturing steps can be reduced. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a front of glasses and a method of manufacturing the front.

  Generally, the front of a pair of glasses includes a pair of rims that respectively hold a pair of lenses, a bridge that connects the rims, and a pair of wishes provided at each end of the pair of rims and connected to a temple. ing. Since each of these components has different roles and required functions, particularly in the case of a metal frame, each component is generally composed of separate parts, and the parts are fixed by brazing or the like. The

  In this way, when separate parts are fixed by brazing or the like, not only the number of steps for manufacturing the front is increased, but also the quality of the parts such as the parts are brittlely broken and the elasticity is reduced. May decrease.

Patent Document 1 discloses a method of manufacturing a front without welding by combining two linear members. However, even in this method, it is necessary to perform screwing at a plurality of locations in order to fix the two linear members, and the number of parts increases and the number of assembly steps increases, so there is still room for improvement.
JP-A-10-333101

  An object of the present invention is to achieve at least one of a reduction in the number of parts and a reduction in the number of manufacturing processes.

  In particular, it is an object of the present invention to provide a front and a front manufacturing method excellent in quality while reducing the number of parts and the number of manufacturing steps.

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

That is, the front of the present invention is
Front including a pair of rims (a variety of types of rims such as full rims and half rims can be applied (hereinafter the same)), a bridge part connecting the rim parts, and a wisdom part provided on each of the pair of rim parts However, it is comprised from the board | plate material of 1 sheet.

  Here, “Shibe” in the present invention includes a case of constituting a part of Satoshi. The same applies hereinafter.

The front of the present invention
A front part including a pair of rim parts, a bridge part connecting the rim parts, and a wisdom part provided in each of the pair of rim parts is punched into a single plate material (punching process by pressing, NC machine tool ( (Including NC cutting machine) and laser cutting (hereinafter, the same applies)) and a bending process.

According to these inventions, since the rim part, the bridge part, and the wisdom part are composed of a single plate material, the number of parts can be reduced compared to the case where each part is composed of separate parts. . Moreover, since it is not necessary to fix separate parts, the number of manufacturing processes can be reduced. Furthermore, since there is no problem of deterioration of the material due to heating such as brazing, there is no risk of quality deterioration.

  Between the pair of rim portions, it is preferable that a portion that is bent to suppress elastic deformation of the bridge portion is provided.

As a more specific example of realizing this,
Apart from the bridge part, there is a part connecting the pair of rim parts,
Examples of the crossing portion include those in which the rim portion is bent so that the surface including the crossing portion and the surface including the bridge portion do not coincide with each other.

  In other words, if the bridge portion is elastically deformed, the position of the rim portion changes, and the relative positional relationship between the lens held by the rim portion and the eyes changes, so that the original function of the glasses is sufficient. It will not be demonstrated. Therefore, it is essential that the bridge portion is not elastically deformed. On the other hand, if the rim portion and the bridge portion are formed of a single plate material and are configured to exist on the same plane, the portion of the bridge portion is easily elastically deformed. Therefore, by adopting the configuration as described above and suppressing the elastic deformation of the bridge portion, it is possible to prevent the relative positional relationship between the lens and the eyes from changing.

  The wisdom portion may be subjected to a bending process that enables elastic swinging in the opening direction of the temple connected to the wisdom portion.

As a more specific example of realizing this,
Examples of the wisdom portion include those that are bent in a U shape.

  In this way, even if the temple itself is not elastically deformed, the temple can be elastically swung in the opening direction, so that the wearability of the spectacles on the head is improved. be able to.

Moreover, the manufacturing method of the front of the present invention includes:
Manufacturing a front including a pair of rim portions, a bridge portion connecting the rim portions, and a wisdom portion provided on each of the pair of rim portions by performing punching and bending processing on a single plate material. Features.

As a more specific example of realizing this,
By punching a single plate material, a pair of rim parts, a bridge part connecting the rim parts, a wisdom part provided in each of the pair of rim parts, and a pair of Producing a single plate-like intermediate product including a portion that connects the rim portions to each other; and
A step of bending the portion that becomes the crossing portion with respect to the rim portion by forming a bending portion;
Forming a wisdom part by bending the wisdom part into a U shape by bending.

  According to the front manufacturing method of the present invention, the front including the rim portion, the bridge portion, and the wisdom portion can be manufactured with a single plate member, so that the number of parts can be reduced as compared with a case where a plurality of parts are fixed. In addition, the number of manufacturing steps can be reduced. In addition, since there is no problem of deterioration of the material due to heating such as brazing, there is no possibility that the quality is lowered.

  In addition, said each structure can be employ | adopted combining as much as possible.

  As described above, according to the present invention, it is possible to provide a front and a front manufacturing method excellent in quality while reducing the number of parts and the number of manufacturing steps.

  The best mode for carrying out the present invention will be exemplarily described in detail below 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 present invention only to those unless otherwise specified. .

(Example 1)
With reference to FIGS. 1-7, the front and the manufacturing method of a front which concern on Example 1 of this invention are demonstrated.

<Glasses>
With reference to FIGS. 1-3, the spectacles to which the front which concerns on Example 1 of this invention was applied are demonstrated. FIG. 1 is a plan view of eyeglasses to which a front according to Embodiment 1 of the present invention is applied. In FIG. 1, a part of the components is seen through on the right side from the center. In FIG. 1, the pads are omitted. FIG. 2 is a front view of the glasses to which the front according to the first embodiment of the present invention is applied. In FIG. 2, temples and the like are omitted, and only the vicinity of the front is shown. FIG. 3 is a side view of the glasses to which the front according to the first embodiment of the present invention is applied.

  As shown in the figure, the spectacles 100 includes a front 10, a pair of lenses 20, a pair of wisdoms 30 provided at both ends of the front 10, a pair of temples 40 that can be opened and closed with respect to the front 10, and a front A hinge 50 for pivotally connecting the wisdom 30 and the temple 40 to make the temple 40 openable and closable with respect to 10, and a pair of pads (nose pads) 60 for fixing and holding the glasses 100 on the face It has. In addition, the temple 40 in the present embodiment is provided with an internal shin material 41.

  The front 10 according to the present embodiment includes a pair of rim portions 11 that respectively hold the pair of lenses 20, a bridge portion 12 that connects the rim portions 11, and a wiping portion 13 that is provided on each of the pair of rim portions 11. In addition to the bridge portion 12, a rim portion 11 is connected to the rim portion 11. In this embodiment, the wisdom part 13 provided on the front 10 constitutes a part of wisdom. The tip of the wisdom part 13 is fixed by being embedded in the wisdom 30 or screwed, and the wisdom part 13 and the wisdom 30 form one wisdom.

  In the present embodiment, as described above, the front 10 including the pair of rim portions 11, the bridge portion 12, the pair of wisdom portions 13 and the crossing portion 14 is formed from a single elastic plate material. It is configured.

<Front and front manufacturing method>
In particular, the front and the front manufacturing method according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 4 is a plan view showing the intermediate product in the manufacturing process of the front according to the first embodiment of the present invention. FIG. 5 is a front view of the front according to the first embodiment of the present invention. FIG. 6 is a plan view of the front according to the first embodiment of the present invention. FIG. 7 is a perspective view showing a part of the front according to the first embodiment of the present invention.

  In this embodiment, an elastic plate (metal plate) is used as a raw material, and punching (for example, punching by pressing, cutting by an NC machine tool (NC cutting machine), cutting by laser) is performed. By applying, the intermediate product (10) shown in FIG. 4 is manufactured. Since the punching process itself is a known technique, the description thereof is omitted.

  This intermediate product (10) is a plate-shaped (planar) product because a plate material is punched out. The intermediate product (10) includes a pair of rim portions (11), a bridge portion connecting the rim portions (12), and a pair of wisdom portions (13). Part (14) which becomes a part.

  Here, the intermediate product (10) is obtained by punching a plate material having elasticity as described above. Therefore, the strength is high with respect to the bending stress in the plane direction, and it is difficult to deform, but it is elastically deformed with respect to the stress in the direction perpendicular to the plane (the front side and the back side in FIG. 4). It has the property to do.

  Therefore, when the plate-like (planar) shape is used as the front as in the intermediate product (10), the functions required for each component cannot be sufficiently achieved. Therefore, in this embodiment, by applying bending, which is a kind of press working, each component has a shape suitable for each function so that the function of each component is fully exhibited. It is deformed. Since the bending process itself is a known technique, the description thereof is omitted. In addition, when bending each component, bending may be performed independently, or a certain portion and a certain portion may be bent simultaneously. Needless to say, the order of bending can be selected as appropriate.

  First, as shown in FIG. 6, the rim portion 11 is bent so as to be gently curved so as to swell slightly forward. This is in order to follow the shape of the lens 20 held by the rim portion 11. Similarly, the bridge portion 12 is bent so as to bulge forward. This is to prevent the bridge portion 12 from hitting the nose when the glasses 100 are put on.

  And about the wisdom part 13, the bending process is given so that it may become U shape seeing from upper direction. Thereby, in the part of this wisdom part 13, an elastic deformation | transformation is attained. Therefore, when the eyeglasses 100 are assembled, the temple 40 can be elastically swung in the opening direction by the portion of the wisdom portion 13. In the present embodiment, the through hole 15 is provided in the wisdom part 13 so that the elastic deformation is further facilitated.

  The bridging portion 14 is bent so that the rim portion 11 is bent approximately 90 degrees forward. Thereby, since it is comprised so that the surface containing the bridge | crossing part 14 and the surface containing the bridge part 12 may intersect substantially perpendicularly, the elastic deformation of the bridge part 12 is suppressed. Therefore, the positional relationship between the left and right rim portions 11 is prevented from changing.

<Excellent points of this embodiment>
As described above, according to the front 10 according to the present embodiment, the rim part 11, the bridge part 12, the wisdom part 13 and the crossing part 14 are formed of a single plate material, and therefore each part is made up of separate parts. Compared with the case where it comprises, a number of parts can be reduced. Moreover, since it is not necessary to fix separate parts, the number of manufacturing processes can be reduced. Furthermore, since there is no problem of deterioration of the material due to heating such as brazing, there is no risk of quality deterioration.

  And although the front 10 which has a some component part is comprised from one board | plate material, the function of each component part can fully be exhibited by performing each bending process to each component part.

  In particular, by making the bridge portion 12 difficult to elastically deform, it is possible to prevent the positional relationship between the left and right rim portions 11 from changing, and the relative positional relationship between the lens 20 and the eyes changes. Can be prevented.

  Further, since the portion of the wisdom portion 13 can be elastically deformed, even if the temple 40 itself is not elastically deformed, the temple 40 can be elastically swung in the opening direction. In addition, the wearability of the glasses 100 on the head can be improved.

<Others>
As described above, it is desirable that the bridge portion 12 is not easily elastically deformed, and the wisdom portion 13 is elastically deformed. However, methods for realizing these are not limited to those described in the above embodiments. Regarding the former, in short, a bending process may be performed so that a surface that does not coincide with the plane including the rim portion 11 is formed between the rim portion 11 and the rim portion 11. Therefore, for example, it is conceivable to perform a bending process on the bridge 12 itself. For the latter, various modifications are possible, some of which will be described with reference to FIGS.

(Tomobe variant 1)
FIG. 8 is a schematic view showing a modification 1 of Tomobe. FIG. 8A is a plan view showing a part of the intermediate product (near the Tomobe) according to the modification, and FIG. 8B is a part of the front according to the modification (of the Tomobe). FIG.

  In the said Example 1, although the structure in the case where the part used as a wisdom part was provided in the outer side of a rim | limb part in the intermediate product was shown, in the said modification 1, the part used as a wisdom part in the intermediate product (10a) (13a) is configured to be inside the portion (11a) to be the rim portion. Even in such a configuration, the end portion of the rim portion 11a can be formed at the end portion of the rim portion 11a by bending, as in the front 10a shown in FIG. 8B. Also in this modification, a through hole 15a is provided in the wisdom portion 13a.

(Tomobe variant 2)
FIG. 9 is a schematic view showing a modification 2 of Tomobe. In addition, in FIG. 9, a part of front (near the Satoshi part) is shown with the perspective view. In the said Example and the modification 1, the case where a through-hole was provided in the wisdom part was demonstrated so that the wisdom part could be further elastically deformed further. However, depending on the characteristics of the material, it may be sufficiently elastically deformed without providing a through hole, and if the temple itself is easily elastically deformed, it is not necessary to be elastically deformed so much at the wisdom portion.

  Therefore, in a second modification, a configuration in the case where no through hole is provided in the wisdom portion is shown. FIG. 9A shows an example in which no through hole is provided in the wisdom portion in the above embodiment. In the case of the front 10b, as shown in the drawing, the through hole is not provided in the end portion 13b provided at the end of the rim portion 11b. Moreover, what was shown to FIG. 9 (B) is an example made into the structure which does not provide a through-hole with respect to the wisdom part in the said modification 1. FIG. Also in the case of the front 10c, as shown in the drawing, the through hole is not provided in the end portion 13c provided at the end of the rim portion 11c.

(Tomobe modification 3)
FIG. 10 is a schematic diagram showing Modification 3 of the Tomobe. In addition, in FIG. 10, a part of front (near Satoshi part) is shown with the perspective view. In this modification, a case is shown in which a part of the wisdom portion is narrowed so that the elastic deformation is further facilitated.

  Also in the case of the front 10d in this modified example, the end portion of the rim portion 11d is provided with a wisdom portion 13d similar to the case of the above embodiment. As in the case of the above embodiment, the wisdom portion 13d is provided with a through hole 15d. In the case of this modification, a notch 16d is provided in the vicinity of the base of the wisdom portion 13d, and the width of the wisdom portion 13d is partially narrowed so that the elastic deformation is further facilitated. It is configured.

(Example 2)
With reference to FIG. 11, a front according to Embodiment 2 of the present invention will be described. In the first embodiment, the case where the rim which is a part of the front is a full rim configured to cover the entire circumference of the lens has been described as an example. However, the type of the rim portion is not limited to this, and various types can be applied. Therefore, in this embodiment, a case where the rim portion is a half rim will be described. FIG. 11 is a front view of glasses to which a front according to Embodiment 2 of the present invention is applied. However, in FIG. 11, only the front and the lens are shown, and the temples and pads are omitted.

  Also in the present embodiment, the spectacles 100e includes a front 10e and a pair of lenses 20e. As in the case of the first embodiment, the front 10e in the present embodiment also includes a pair of rim portions 11e that respectively hold the pair of lenses 20e, a bridge portion 12e that connects the rim portions 11e, and a pair of rim portions. In addition to the wisdom part 13e provided in each of the 11e and the bridge part 12e, a rim part 11 is connected to each other. Also in this embodiment, the wisdom portion 13e provided on the front 10e constitutes a part of wisdom.

  In the first embodiment, the rim portion 11 of the front 10 is a full rim. In the present embodiment, the rim portion 11e of the front 10e is a half rim configured to cover only the upper half of the lens 20e. Only is different. The other configuration and the manufacturing method of each component are the same as those in the first embodiment, and the description thereof is omitted.

  Needless to say, even when the rim portion 11e is a half rim as in the present embodiment, the same effects as in the first embodiment can be obtained.

  If the lens 20e cannot be sufficiently held by the rim portion 11e alone, a so-called grooved frame in which a groove is dug in the edge of the lens 20e and fixed with nylon thread or the like can be used.

FIG. 1 is a plan view of eyeglasses to which a front according to Embodiment 1 of the present invention is applied. FIG. 2 is a front view of the glasses to which the front according to the first embodiment of the present invention is applied. FIG. 3 is a side view of the glasses to which the front according to the first embodiment of the present invention is applied. FIG. 4 is a plan view showing the intermediate product in the manufacturing process of the front according to the first embodiment of the present invention. FIG. 5 is a front view of the front according to the first embodiment of the present invention. FIG. 6 is a plan view of the front according to the first embodiment of the present invention. FIG. 7 is a perspective view showing a part of the front according to the first embodiment of the present invention. FIG. 8 is a schematic view showing a modification 1 of Tomobe. FIG. 9 is a schematic view showing a modification 2 of Tomobe. FIG. 10 is a schematic diagram showing Modification 3 of the Tomobe. FIG. 11 is a front view of glasses to which a front according to Embodiment 2 of the present invention is applied.

Explanation of symbols

10, 10a, 10b, 10c, 10d, 10e Front 11, 11a, 11b, 11c, 11d, 11e Rim part 12, 12e Bridge part 13, 13a, 13b, 13c, 13d, 13e Intelligent part 14, 14e Cross part 15, 15a, 15d Through-hole 16d Notch 20, 20e Lens 30 Chi 40 Temple 41 Shin 50 50 Hinge 100, 100e Glasses

Claims (8)

  A front comprising a pair of rim parts, a bridge part connecting the rim parts, and a front part including a wisdom part provided on each of the pair of rim parts.   The front including the pair of rim parts, the bridge part connecting the rim parts, and the wisdom part provided on each of the pair of rim parts was obtained by subjecting one plate material to punching and bending. Front characterized by being composed of things.   The front according to claim 1, wherein a portion that is bent to suppress elastic deformation of the bridge portion is provided between the pair of rim portions. Apart from the bridge part, there is a part connecting the pair of rim parts,
The front portion according to claim 3, wherein the crossing portion is bent on the rim portion so that the surface including the crossing portion and the surface including the bridge portion do not coincide with each other.   The wisdom portion is subjected to a bending process that enables elastic swinging in the opening direction of a temple connected to the wisdom portion. Listed in the front.   6. The front according to claim 5, wherein the wisdom portion is bent in a U shape.   Manufacturing a front including a pair of rim portions, a bridge portion connecting the rim portions, and a wisdom portion provided on each of the pair of rim portions by performing punching and bending processing on a single plate material. A manufacturing method for a front. By punching a single plate material, a pair of rim parts, a bridge part connecting the rim parts, a wisdom part provided in each of the pair of rim parts, and a pair of Producing a single plate-like intermediate product including a portion that connects the rim portions to each other; and
A step of bending the portion that becomes the crossing portion with respect to the rim portion by forming a bending portion;
And a step of forming a wisdom part by bending the wisdom part into a U shape by bending.

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