JP2021037037A - Shoehorn - Google Patents

Abstract

To provide a shoehorn that is easy to carry (convenient to carry), that is highly durable, and that can be used with superior convenience in each of a plurality of purposes.SOLUTION: The shoehorn 1 of the present invention, at least on one surface in the front and reverse two surfaces of a flat planar or filmy substrate 11 for a printed circuit board, a desired pattern 20 or desired information 40 is formed at least by a metallic layer 30 among the metallic layer 30, a solder resist layer 60, and a printing ink layer 50. More suitably, a part that functions as a clip piece 2 is formed in one end of the shoehorn 1.SELECTED DRAWING: Figure 6

Description

The present invention relates to a shoehorn.

Patent Document 1 discloses a shoehorn made of a metal plate that can also be used as a bottle opener.
Further, Patent Document 2 discloses a shoehorn made of plastic, which has a long handle and is easy to use.

Jitsuzensho 50-072442 JP-A-2018-51272

The shoehorn made of a metal plate described in Patent Document 1 is superior in terms of mechanical strength and durability as a bottle opener, but it is inconvenient as an original shoehorn because it is heavy or too hard to use. There is.
Further, the shoehorn is generally formed so as to have a curved shape that follows the curved shape of the heel of the foot to be put into the shoe or a curved shape that follows the movement of the heel of the foot when entering the shoe.
For this reason, when the conventional general shoehorn as described above is put in a chest pocket for carrying around, the pocket swells and becomes awkward.
Also, it is practically impossible to store such a shoehorn in a wallet or business card holder.
In this way, the conventional general shoehorn, whose overall shape is formed into a three-dimensional curved shape, can smooth the movement of the foot to be put in the shoe, but on the other hand, it is difficult to carry. Therefore, it cannot be carried and used everywhere.
Further, some conventional shoehorns are designed to impart a second function other than the shoehorn as described in Patent Document 1, but in the end, the first function, that is, the original shoe. Whether it is a function as a shoehorn or a function as a second dual-purpose item, it is actually used only for one of the functions, or even if it is used, both can only exert half-finished convenience. It is easy to fall into the result.

The plastic shoehorn described in Patent Document 2 has a long handle, which is advantageous in terms of ease of use, but the long handle itself makes it bulky. It tends to be difficult to put it in place, and it is difficult or practically extremely difficult or impossible to carry it around.
In addition, so-called plastic shoehorns can be finished relatively lightweight, which contributes to ease of carrying, but on the other hand, they generally tend to have low mechanical strength, durability, and weather resistance. Due to the fact that it is made of plastic, for example, if it is bent significantly and used, it will be damaged immediately, or it will deteriorate over the years, causing small cracks and the surface. There are inconveniences such as the appearance becoming unsightly due to roughening, the overall flexibility being lowered, making it difficult to use, and being easily cracked.
In addition, the surface of conventional general plastic shoehorns deteriorates as they are used due to the above-mentioned aging and fragility of the material, and the smoothness of the shoehorn is impaired. There is a tendency for the foot to slip poorly when it is put into shoes.
In addition, the shoehorn that has become so slippery may damage the fibers of the sock worn by the user and eventually puncture the sock.

As described above, the conventional shoehorn is inconvenient to carry around, tends to have insufficient durability, and it is difficult to combine it for multiple purposes.
An object of the present invention is to provide a shoehorn that is easy to carry (convenient to carry), has high durability, and can be used with good convenience in each of a plurality of uses.

(1) In the shoehorn of the present invention, a metal layer and a solder resist have a desired pattern or desired information on at least one of the front and back surfaces of a flat plate-shaped or film-shaped substrate for a printed wiring board. A shoehorn having a basically flat outer shape formed by at least the metal layer of the layers and the printing ink layer.
When used as a shoehorn, it is mainly a substrate for a printed wiring board, which is a forming material, and is flat due to its suitable flexibility due to its overall material properties including the metal layer and solder resist layer on its surface. Even if it is in the shape, it is easy for the user to use as a shoehorn, has excellent durability, and can be manufactured using a general printed wiring board manufacturing process without preparing a dedicated manufacturing process. The shoehorn.
(2) Preferably, a portion that functions as a clip piece is formed at one end of the shoehorn, and the shoehorn as a whole is configured to function as a clip.
(3) Further, the clip piece may be formed by the substrate itself constituting the shoehorn.
(4) Further, the clip piece is a portion formed on the substrate and separated from the outer portion by a notch continuous in three of four directions of front, back, left and right, such as a U shape as an example. Is a portion corresponding to the open portion in the remaining one direction other than the three directions, that is, a portion not cut out, which is continuous with the outer portion, and at least the clip piece is continuous with the outer portion. Due to the elasticity of the portion, the portion separated from the outside by the notch in the three directions may be formed so as to function as the clip piece.
In this case, the entire outer portion of the clip piece, that is, the entire outer portion of the clip piece separated from the notch, functions as the shoehorn body in the shoehorn.
(5) Further, the clip piece is provided on a portion held by a finger when the user uses the shoehorn, and when the user puts his / her foot in the shoe using the shoehorn, the shoehorn is provided. It is preferable that the reaction force applied to the finger is relaxed by the elastic deflection of the clip piece and the outer portion adjacent thereto, so as to function as a part of the suspension.
(6) Further, when the user puts his / her foot into the shoe using the shoehorn, the sliding surface for improving the sliding of the foot is the metal layer, the solder resist layer, and the printing ink. It may be formed by at least one of the layers.
(7) Further, the metal layer is a copper foil or a copper plate provided on the surface of a substrate for the printed wiring board, the copper foil or the copper plate and a nickel plating layer provided on the copper foil, or the copper foil or the said. It is assumed that the copper plate is composed of at least one of the nickel plating layer, the gold plating layer provided on the copper plate, the copper foil or the copper plate and the solder layer provided on the copper plate. Good.
(8) Further, it is preferable to have a reinforcing pattern made of the metal layer provided as a material mechanical reinforcing material in at least a desired part of the shoehorn. The configuration provided with such a reinforcing material is particularly suitable in the case of a shoehorn using a thin film substrate such as a polyimide film as the substrate.
(9) Further, it may have a pattern made of the metal layer that can be used as an electric path for discharging static electricity that charges the user of the shoehorn.
(10) In addition, a ring or connecting metal fitting for connecting with an item (for example, a key for a hotel guest room, various keys for automobiles and motorcycles, a smartphone, a mobile phone, etc.) different from the shoehorn. Alternatively, it may have at least one through hole formed through which a connecting string is passed, and the shoehorn may also be used as a key chain, a mascot, or the like by the through hole, or , The shoehorn may be used in combination with an article separate from the shoehorn.
(11) Further, when the clip is provided on a portion held by the user with a finger when using the shoehorn, or when the shoehorn can also be used as a bookmark, the clip is used. The surface may be intentionally roughened to the desired roughness to provide a rough surface to prevent the fingers from slipping or to prevent slipping on the paper surface as the bookmark.
Alternatively, the desired pattern or the desired information is formed on the surface of the clip by the metal layer, and the unevenness of the metal layer forming the pattern or the information is used as a rough surface for preventing slipping. May be good.
(12) Further, the substrate may be any one of a glass epoxy substrate, a glass composite substrate, a paper epoxy substrate, a paper phenol substrate, a glass polyimide substrate, and a polyimide film.
Among them, the most suitable shoehorn is a glass epoxy substrate (glass cloth substrate epoxy resin substrate).
Further, it is preferable to use a copper-clad substrate to which a copper foil or a copper plate is previously attached to one side or both sides of the glass epoxy substrate, and to use the copper foil or the copper plate as the metal layer itself or a part thereof. Alternatively, for example, a material such as a prepreg may be used to form a multi-layer structure such as a multi-layer printed wiring board.
When the shoehorn is configured to be used as a bookmark, the most suitable substrate is a polyimide film for a flexible printed wiring board.
(13) Further, in manufacturing the shoe spatula, a copper-clad substrate having a copper foil or a copper plate attached to at least one of the two surfaces of the front and back surfaces of the substrate for the printed wiring board is used, and the copper is used. The copper foil layer or the copper plate layer of the upholstered substrate is patterned by a printed wiring board manufacturing process to form the desired pattern or the desired information, and the desired pattern or the desired information is applied to the solder resist. When it is composed of a layer or the printing ink layer, by a manufacturing method for a printed wiring board including a process of forming the pattern or the information by the solder resist layer or the printing ink layer by the printed wiring board manufacturing process. It is advisable to manufacture the shoe spatula.
(14) Further, in manufacturing the shoehorn, the clip as described in (4) above was separated from the outer portion thereof by, for example, a U-shaped notch formed in the substrate. When it is formed as a U-shaped portion, the notch may be manufactured by a manufacturing method including a process of processing using a router for processing a printed wiring board.
(15) Further, in manufacturing the shoehorn, when the surface of the clip is intentionally roughened to a desired roughness as described in (11) above, the roughened surface is used. Is preferably formed by a manufacturing method that includes a process of intentionally roughening the surface of the clip to a desired roughness using a roughening process in a printed wiring board manufacturing process.
(16) In short, (13)-(15) above, the shoe spatula according to the present invention is a copper-clad substrate in which a copper foil or a copper plate is attached to one or both sides of a substrate for a printed wiring board as a starting material thereof. By using (copper-clad laminated board) and performing various processing on the substrate and the copper-clad substrate by a process for manufacturing a printed wiring board that can be carried out on a general printed wiring board manufacturing line, other than that. It is also possible to manufacture by using only the existing printed wiring board manufacturing line without preparing a special manufacturing line or process (specialized only for manufacturing the shoe spatula). ..

According to the present invention, it is easy to carry (convenient to carry), has high durability, and when the shoehorn is used for a plurality of purposes, it can be used with high convenience in each of the plurality of uses. , Shoehorn is provided.

It is a figure which shows the structure of one side of the front and back sides of the shoehorn which concerns on 1st Embodiment of this invention. It is a figure which shows the structure of the other side of the shoehorn which concerns on 1st Embodiment shown in FIG. It is a figure which shows the structure of the modification of the shoehorn which concerns on 1st Embodiment shown in FIG. It is a figure which shows each main manufacturing process for forming a shoehorn by this invention along the flow from the process shown in (a) to the process shown in (g). It is a figure which shows an example of the usage method which applied the shoehorn of the modified example which concerns on 1st Embodiment. It is a figure which shows the structure of one of the front and back two surfaces of the shoehorn which concerns on 2nd Embodiment of this invention. It is a figure which shows the structure of the other side of the shoehorn which concerns on 2nd Embodiment shown in FIG. It is a figure which shows the structure of the modification of the shoehorn which concerns on 2nd Embodiment shown in FIG. It is a figure which shows the overall structure of the shoehorn which concerns on 3rd Embodiment of this invention. It is a figure which shows the overall structure of the shoehorn which concerns on 4th Embodiment of this invention. It is a figure which shows the structure of the modification of the shoehorn which concerns on 4th Embodiment shown in FIG. It is a figure which shows an example of the case where the shoehorn of the modified example which concerns on 4th Embodiment shown in FIG. 10 is damaged. It is a figure which shows typically the action and effect mainly with the clip piece in the shoehorn which has the clip piece which concerns on this invention.

<First Embodiment>

FIG. 1 is a diagram showing the configuration of one of the front and back surfaces of the shoehorn according to the first embodiment of the present invention.
Further, FIG. 2 is a diagram showing a configuration of the other surface of the shoehorn according to the first embodiment shown in FIG.

The shoehorn 1 is basically a flat shoehorn formed by using a glass epoxy board (glass cloth substrate epoxy resin substrate) 11 which is a flat plate-shaped substrate for a printed wiring board as a main structural material. Is.
As shown in FIG. 1, a pattern pattern 20 (21, 22, 23, 24) desired by the orderer of the shoehorn 1 is formed by the metal layer 30 on one of the front and back surfaces. There is.
A solder resist layer 60 is formed in a portion other than the portion where the metal layer 30 is formed.
Then, on the other surface, as shown in FIG. 2, the pattern pattern 20 (21, 22, 23, 24) desired by the manufacturer of the shoehorn 1 is similar to that on the one surface. Is formed by a similar metal layer 30.
In addition, as the information 40 desired by the orderer of the shoehorn 1, the character information 41 of the orderer's own company name "△△ Denko Co., Ltd." and the pattern 42 of the scale in 1 mm increments as a measuring rod are printed. The ink layer 50 is printed on the surface of the solder resist layer 60.

As shown in FIGS. 1 and 2, the shoehorn 1 is basically a shoehorn having a flat outer shape, but has appropriate flexibility and mechanical strength of the glass epoxy substrate 11 which is the main structural material thereof. Therefore, when used as a shoehorn, suitable bending can be generated. Therefore, even if it is flat as described above when not in use, it is moderately bent when used as a shoehorn and is easy to use, and its main structure. Since the glass epoxy substrate 11 which is a material is basically an FRP material (Fiber Reinforced Plastics), the shoehorn 1 as a whole has extremely excellent durability and mechanical strength.
Moreover, as will be described later, the shoehorn can be manufactured using only a general printed wiring board manufacturing device without preparing a special manufacturing device or the like dedicated to the shoehorn.

Explaining one surface shown in FIG. 1 in more detail, the symbol patterns 21, 22, 23, and 24 are formed as the symbol pattern 20 composed of the metal layer 30. These are mainly provided with the design meaning in the shoehorn 1, but can also be given a more functional meaning.
The design pattern 21 is provided to improve the slipperiness of the shoehorn 1 with respect to the heel of the user's foot when the shoehorn 1 is used as the shoehorn itself, that is, a sliding surface. Among the symbol patterns 20 formed on one of the surfaces, the symbol pattern occupies the largest area.
The symbol pattern 22 does not have a great meaning in terms of the function of the shoehorn 1 as the shoehorn itself, but from the viewpoint of the symbol, it is a teardrop-shaped pattern similar to the above symbol pattern 21 and is a symbol pattern. Since it is smaller than 21 and is formed in a direction opposite to the design pattern 21, it has the meaning of expressing a sense of balance and rhythm of the design of the design in the entire shoehorn 1.
The symbol pattern 23 has the meaning of expressing a sense of balance and a sense of rhythm in terms of design, as in the case of the symbol pattern 22 described above.
At the same time, by providing the pattern pattern 23 at a position where the user can easily grasp the shoehorn 1 with his / her fingers, the shoehorn 1 has a meaning related to the function of the shoehorn itself. May be. That is, by intentionally roughening the surface to a desired roughness by, for example, roughening the surface of the pattern 23, the user can prevent the finger from slipping when using the shoehorn. It may be possible to use it as a rough surface for the purpose.
The design pattern 24 is formed mainly based on a design requirement, and is formed by connecting a large number of patterns on small dots having a diameter of about 1 mm, for example.
Alternatively, functionally, for example, when the user uses the shoehorn by intentionally roughening the surface of the individual dots of the symbol pattern 24 to a desired roughness, as in the case of the symbol pattern 23 described above. It may be used as a rough surface to prevent the finger from slipping. Alternatively, by forming the thickness of these dots thicker than the thickness of the surrounding portion, that is, the solder resist 60, the unevenness formed by the dots may be used as the above-mentioned rough surface.
As shown in FIG. 4 (g), the metal layer 30 constituting these pattern patterns 20 is a copper foil 31 having a pattern formed on the glass epoxy substrate 11 and a nickel plating layer 32 provided on the copper foil 31. And a gold plating layer 33 provided on the metal plating layer 33.
Therefore, all the design patterns 20 (21, 22, 23, 24) composed of the metal layer 30 have a luxurious, elegant, and luxurious feeling whose surface (that is, the appearance) looks like gold on the surface of the gold-plated layer 33. It is a so-called good-looking one that can be visually recognized as a design.

As shown in FIG. 1, on one surface of the shoehorn 1, the solder resist layer 60 is formed in all the portions other than the portion where the metal layer 30 is formed.
As the solder resist layer 60, various solder resists for printed wiring boards can be used.
In this first embodiment, the solder resist layer 60 is made of a black solder resist.
By making the solder resist layer 60 black in this way, in combination with the surface of the metal layer 30, that is, the calm gold color of the gold plating layer 33, the overall appearance of the shoe spatula 1 can be made, for example, black lacquered. It is possible to create a high-class feeling like a classic Japanese-style lacquer ware or an inro with a gold leaf pattern on the surface, or a dignified and elegant image as seen in classic Western inscriptions, for example. it can.
Further, by effectively using the characteristic that the gold color, which is the surface color of the metal layer 30, is close to the yellow color, which is the warning color, it is combined with the black color, which is the color of the solder resist layer 60. It is also possible to make the overall design of the shoehorn 1 more noticeable.
Here, the solder resist for printed wiring boards has traditionally been mainly green, but in recent years, other colors such as blue, black, red, and white have been developed and marketed. It is becoming available in the market. In addition, various variations in the material characteristics have come to be prepared. From among such various solder resists, the one most suitable for the desired image may be selected and used.
Alternatively, for example, a red solder resist thermocurable resin, a white solder resist thermocurable resin, and a yellow solder resist thermocurable resin are mixed to form a light pink solder resist. By mixing solder resists of a plurality of different colors, the color of the solder resist layer 60 used in the shoe wrasse 1 of the present invention is so-called customized, and the shoe wrasse having the color most suitable for the desired image is obtained. You may try to create the design of 1.

Explaining the other surface shown in FIG. 2 in more detail, the pattern pattern 20 (21, 22, 23, 24) desired by the manufacturer of the shoehorn 1 is similar to that on the one surface described above. As a pattern, it is formed by a metal layer 30. The symbol pattern 20 has already been described in detail.
Further, as the information 40 desired by the manufacturer of the shoehorn 1, the character information 41 of the company name "△△ Denko Co., Ltd." is provided on the surface of the solder resist layer 60 by the printing ink layer 50 made of white ink. It is printed on. Similarly, the printing ink layer 50 made of white ink prints and forms a pattern 42 on a scale of 1 mm as a measure on the surface of the solder resist layer 60. The information 40 composed of these printing ink layers 50 can be printed and formed by, for example, a silk printing method or a tampo (pad) printing method. Alternatively, printing can be performed by other printing methods.
The color of the information 40 composed of the printing ink layer 50 can be selected and used from various colors of the printing ink for the printed wiring board. Alternatively, any printing ink having any color and material can be used as long as it is a printing ink that does not hinder printing on the surface of the solder resist layer 60.
In this first embodiment, white printing ink is used for the printing ink layer 50 in order to display the information 40 in a color that is intentionally different from the gold color that is the color of the pattern 20 composed of the metal layer 30. There is. By doing so, it becomes possible to make the character information 41 and the scale pattern 42 as a measure clearly and clearly visible in contrast with the black color of the underlying solder resist 60, as well as other factors. It can be recognized as information of a type clearly different from the information 40 and the like composed of the metal layer 30 of the above.

A through hole 70 having a diameter of about 3-4 mm is provided at one end of the shoehorn 1 in the direction opposite to one end (hereinafter, this is also simply referred to as “tip”) that is inserted toward the inside of the shoe during use. ing.
Through the through hole 70, the shoehorn 1 can also be used as a key holder, a mascot, or the like, or can be used in connection with an article separate from the shoehorn 1.
That is, in order to connect an article different from the shoehorn 1, for example, a key for a hotel guest room, various keys for automobiles and motorcycles, a smartphone, a mobile phone, and the like to the through hole 70. By connecting the shoehorn 1 to these separate articles via the ring, connecting metal fittings, connecting string, etc., the shoehorn 1 can also be used as a key chain, mascot, etc. Is also possible.
Alternatively, the through hole 70 may be used as a hole for hanging the shoehorn 1 on, for example, a hook arranged at a fixed position at the entrance.
The external dimensions of the shoehorn 1 may be 10 cm-20 cm in length, more preferably about 13 cm-17 cm, and width 2 cm-4 cm, more preferably about 3.0 cm-3.5 cm.
If it is longer than the above, it will be inconvenient to carry, if it is shorter than the above, it will be difficult to use, and if it is wider than the above, it will be slightly bent in the width direction, but basically. This is because a flat plate makes it difficult to use due to a disaster, and conversely, if it is narrowed, the function as a shoe spatula becomes insufficient and it becomes difficult to use, and there is a risk that mechanical strength and durability may be insufficient. Further, there is a demerit that it becomes difficult or impossible to provide the clip piece 2 as shown in FIG.

FIG. 3 is a diagram showing a configuration of a modified example of the shoehorn according to the first embodiment shown in FIG.

The shoehorn 1 has an electrostatic discharge path pattern 34 made of a metal layer 30, which can be used as an electric path for discharging static electricity charged on the body and clothes of the user of the shoehorn 1. Since the other configurations are the same as the configurations of the shoehorn 1 shown in FIGS. 1 and 2, detailed description thereof will be omitted. The same parts as those shown in FIGS. 1 and 2 are designated by the same reference numerals as those used in FIGS. 1 and 2.
The static electricity discharge path pattern 34 is a conductor pattern made of a metal layer 30 provided for enabling static electricity to be discharged by contacting with, for example, a metal doorknob (not shown).
The static electricity release path pattern 34 includes a contact end portion 341 provided at the tip of the shoehorn 1, a teardrop-shaped main path portion 342 similar to the pattern pattern 21 shown in FIGS. 1 and 2, and a user's main path portion 342. It is composed of a finger contact surface 343 provided so as to come into contact with a finger and obtain electrical continuity, and a finger contact surface 343 connected to a main path portion 342 via a bottleneck-shaped bridging portion 344. Has been done.
The contact end portion 341 is a conductive layer made of a metal layer 30 provided on the end surface of the semicircular tip portion of the shoehorn 1. The contact end portion 341 is formed as a conductor pattern electrically connected to a main path portion 342 having a shape similar to the pattern pattern 21 shown in FIGS. 1 and 2. For the contact end portion 341, for example, a step of first forming an electroless copper plating layer on the end surface of the semicircular tip portion of the shoe spatula 1 and then forming a copper layer on the electroless copper plating layer by an electrolytic plating method is performed. Can be formed through.
The main path portion 342 has a teardrop shape similar to the pattern 21 shown in FIGS. 1 and 2, but the semicircular tip portion thereof is electrically connected to the contact end portion 341 and the rear end portion thereof. The portion is electrically connected to the finger contact surface 343 via a bottleneck-shaped bridging portion 344.
That is, the static electricity discharge path pattern 34 is a pattern that electrically conducts without interruption from the contact end portion 341 that contacts the metal doorknob to the finger contact surface 343 via the main path portion 342 and the bridge portion 344. Is formed as.

A shoehorn 1 having such a static electricity discharge path pattern 34 can be used as a device for static electricity discharge.
That is, for example, when an electrostatic user opens the door and goes out of the room, the user first puts his or her finger on the doorknob before touching the doorknob directly in order to turn the doorknob. While contacting the finger contact surface 343 of the shoehorn 1, the contact end 341 at the tip of the shoehorn 1 is brought into contact with the doorknob. In this way, the static electricity charged on the user's body and clothes can be released indirectly through the static electricity release path pattern 34 of the shoehorn 1 with moderate slowness. it can.
The static electricity discharge path pattern 34 may be provided on both the front and back surfaces of the shoehorn 1, or may be provided on only one surface, and various information 40 and FIG. 1 as shown in FIG. 2 may be provided on the other surface. Various symbol patterns 20 as shown in the above may be provided.
Further, as a means for releasing static electricity more slowly, instead of making the bridge portion 344 made of a metal portion 30, a printing resistance element having an appropriate electric resistance, for example, used in a hybrid wiring board or the like. It may consist of.

FIG. 4 is a diagram showing an example of each of the main manufacturing processes for forming the shoehorn according to the present invention along the flow from the process shown in (a) to the process shown in (g).

As shown in FIG. 4A, first, a copper-clad substrate 10 to which copper foils 12 and 13 are previously attached to both sides of the glass epoxy substrate 11 is prepared.
As the copper-clad substrate 10, the glass epoxy copper plate substrate is the most suitable from the viewpoint of its durability, mechanical strength, and flexibility. However, in addition to this, it is also possible to use any one of a glass composite substrate, a paper epoxy substrate, a paper phenol substrate, a glass polyimide substrate, and a polyimide film.
The suitable thickness of the glass epoxy substrate 11 is in the range of 0.6 mm to 2 mm. For example, the most frequently used one with a thickness of 1.2 mm may be used.
More specifically, among the substrates having a thickness conforming to the JPCA or IPC standard, FR- with a thickness of 0.6 mm, 0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm, and 2.0 mm. 4 (glass cloth epoxy resin copper-clad laminate) is suitable. More preferably, FR-4 having a thickness of 1.0 mm-1.2 mm may be used.
However, it goes without saying that it is not limited to the above. It is desirable to select and use a substrate having an appropriate thickness corresponding to various conditions such as the overall size (particularly the vertical and horizontal external dimensions) and shape of the shoehorn 1.
Further, when the shoehorn 1 is configured to be used as a bookmark, the most suitable substrate 11 is a polyimide film for a flexible printed wiring board.
However, it goes without saying that it is not limited to this.
The specific thicknesses of the copper foils 12 and 13 are, for example, 18 μm, 35 μm, 70 μm, and the like, and it is considered that basically, the thickness is preferably in the range of 10 to 100 μm.
However, it goes without saying that it is not limited to this. If necessary, for example, when it is desired to further thicken the entire metal layer 30 in order to reinforce the overall mechanical strength of the shoehorn 1, a copper plate thicker than the above, for example, a thickness exceeding 100 μm is adopted. On the contrary, when it is desired to form, for example, an extremely fine pattern pattern 20 or information 40, a copper foil thinner than the above may be adopted.

Subsequently, as shown in FIG. 4B, an etching resist layer 14 made of a photocurable resin for manufacturing a printed wiring board is placed on the surface of the copper foil 12 bonded to one surface of the copper-clad substrate 10. To form. This step can be performed using an etching resist film forming apparatus (not shown) for manufacturing a printed wiring board or the like.
Then, the exposure mask film 15 formed with the desired mask pattern 17 formed on the transparent film 16 is aligned and superposed on the etching resist layer 14, and an etching resist exposure machine for manufacturing a printed wiring board (not shown). ), The etching resist layer 14 is exposed.

Subsequently, the etching resist layer 14 is developed using an etching resist developing apparatus (not shown) for manufacturing a printed wiring board, whereby an etching resist pattern 18 as shown in FIG. 4C is formed.

Subsequently, as shown in FIG. 4D, the copper foil 12 in the portion not covered with the etching resist pattern 18 is etched and removed by the subtractive method using an etching apparatus (not shown) for manufacturing a printed wiring board. By doing so, the desired copper foil pattern 31 is formed.

Subsequently, using a solder resist forming apparatus (not shown) for manufacturing a printed wiring board, as shown in FIG. 4 (e), the solder resist layer 60 is formed on a portion other than the portion where the copper foil pattern 31 is formed. To form.
As the solder resist forming apparatus used at this time, different types of apparatus are required depending on the type of the solder resist 60 itself, but in general, a screen printing type apparatus or an exposure patterning type apparatus can be used.

Subsequently, as shown in FIG. 4 (f), a nickel plating layer 32 is first used as a base plating for nickel (Ni) on the copper foil pattern 31 using a plating apparatus for manufacturing a printed wiring board (not shown). To form. Then, the gold plating layer 33 is further formed on the gold plating layer 33 by, for example, an electroless plating method.
The metal layer 30 is formed by the copper foil pattern 31, the nickel plating layer 32 and the gold plating layer 33 laminated on the copper foil pattern 31.
The specific thickness of the nickel plating layer 32 is preferably 0.1-3 μm, for example.
The specific thickness of the gold plating layer 33 is preferably 0.1-3 μm, for example.
However, it goes without saying that it is not limited to these.
Further, as the material for forming the gold plating layer 33, pure gold plating may be used, but for cost reduction, for example, gold alloy plating containing other metals such as nickel, cobalt, and silver may be adopted. Alternatively, the color and brilliance of the finished gold-plated layer 33 may be adjusted by variously changing the content of other metals such as nickel, cobalt, and silver.

Then, as shown in FIG. 4 (g), the printing ink layer 50 having the information 4040 is printed and formed at a desired position on the solder resist layer 60 by, for example, a screen printing method or a tampo (pad) printing method.
Then, although not shown, if necessary, for example, a protective layer 19 made of a synthetic resin made of a material having high transparency and surface slipperiness is provided on the entire surface, and this is used as an overall surface protective layer of the shoehorn 1. It may be used as a sliding surface as a shoehorn.

As described above, the shoe spatula 1 according to the present embodiment is a copper-clad substrate (copper-clad laminated substrate) in which copper foils 12, 13 or copper plates are previously attached to both sides of the substrate 11 for a printed wiring board as a starting material. By using 10 and applying various processing to the copper-clad substrate 10 by a process for manufacturing a printed wiring board that can be performed on a general printed wiring board manufacturing line, other special (for manufacturing shoe spatula) It is possible to manufacture using only a general printed wiring board manufacturing line without requiring a manufacturing line or process (specialized only for).

In the first embodiment, the information 40 such as the character information 41 is composed of the white printing ink layer 50, but the information 40 is composed of the metal layer 30, that is, the gold plating layer on the uppermost layer thereof. It may exhibit 33 gold colors.
By making the information 40 composed of the metal layer 30 in this way, various information 40 including the character information 41 as well as the pattern pattern 20 can be contrasted with the black solder resist 60 as the base color. It can be easily noticed (or well noticeable) and can bring out a more luxurious feeling.

Further, in the first embodiment, only the symbol pattern 20 is formed on one surface of the shoehorn 1, and the same symbol pattern 20 formed on the one surface is formed on the other surface, and in addition to the symbol pattern 20. The case where the information 40 is formed has been described above, but it goes without saying that the case is not limited to this.
In addition, only the pattern pattern 20 may be formed on both the front and back surfaces of the shoehorn 1, or only the information 40 may be formed. Alternatively, both the design pattern 20 and the information 40 may be formed on both the front and back surfaces of the shoehorn 1.
Alternatively, the pattern pattern 20 or the information 40 different from each other may be formed on one surface and the other surface of the front and back surfaces of the shoehorn 1.

Further, in the first embodiment, the metal layer 30 is formed by laminating the nickel plating layer 32 and the gold plating layer 33 on the copper foil pattern 31 in this order, but the present invention is not limited to this. ..
The metal layer 30 may be composed of only the copper foil pattern 31, or may be composed of the copper foil pattern 31 and the nickel plating layer 32 provided on the copper foil pattern 31, or the copper foil pattern 31 and its addition. It may be composed of a solder plating layer (not shown) provided above. Alternatively, of course, a layer made of a metal other than the above, such as silver plating, or other than that, for example, a non-metal may be formed on the copper foil pattern 31.

Further, in the first embodiment, the case where the solder resist layer 60 is formed on all the portions where the metal layer 30 is not formed on both the front and back surfaces of the shoehorn 1 has been described, but the solder resist layer 60 is arbitrary. It may be formed only in a portion, and the remaining portion may expose the surface of the substrate 11 itself.

Further, in the first embodiment, the case where the sliding surface of the shoehorn 1 is formed by the uppermost surface of the metal layer 30, that is, the surface of the gold plating layer 33 has been described. The solder resist layer 60 may be formed by using a solder resist material having a good slipperiness on the finished surface, and the slip surface may be formed by the surface of the solder resist layer 60. Alternatively, similarly, it can be formed by a printing ink layer 50 made of a printing ink made of a material having good slipperiness on the finished surface.

FIG. 5 shows, as an example of how to use the shoehorn of the modified example according to the first embodiment shown in FIG. 3, the shoehorn is also used as a key chain for a guest room key of an accommodation facility and sales promotion goods of the accommodation facility. It is a figure which shows an example of the case where it is used as a shoehorn.

A connecting ring 82 at one end of the chain 81 for connecting to the key 80 of the hotel guest room is passed through a through hole 70 provided at the rear end of the shoehorn 1. The connecting ring 83 at the other end of the chain 81 is passed through the through hole 84 of the key 80. In this way, the shoehorn 1 is connected to the key 80 of the hotel guest room via the chain 81.
The hotel name and room number of the key 80 are written on the head portion 85 of the key 80, for example, "Hotel PWB N451", and the guest room number of the hotel where the guest stays by looking at this notation. (For example, N451 / T, that is, North Building Room 451 / Takanawa Building) can be confirmed.

An electrostatic discharge path pattern 34 as described above with reference to FIG. 3 is formed on both the front and back surfaces of the shoehorn 1.
Further, the information 40 of the hotel name "HOTEL PWB TAKANAWA" is formed by the metal layer 30 as described with reference to FIG.
That is, the hotel name "HOTEL PWB TAKANAWA" drawn in gold on the surface of the gold plating layer 33 looks beautiful and luxurious due to the contrast with the black color of the solder resist layer 60 as the background. In addition, the design of this shoe Bella 1 is designed.

Upon arriving at the hotel where the guest is planning to stay, the guest is handed a key 80 to which the shoehorn 1 is connected via a chain 81 as a so-called guest room key at the front desk of the hotel. Then, the guest opens the door of the guest room with the guest room number indicated on the head of the key 80, enters the room, takes off the shoes he has been wearing, and changes to slippers to start the accommodation. ..
Then, when the guest goes out, the slippers are changed to shoes. At that time, the shoehorn 1 connected to the key 80 can be used to smoothly put the foot into the shoes.
At this time, since the guest is going out, he / she must inevitably hold or carry the key 80 and the shoehorn 1 connected to the key 80.
Therefore, when the guest goes out, by using the key 80 to which the shoehorn 1 is connected, the guest is placed on the side surface of a shoe box provided in the guest room, for example, like a conventional general shoehorn. I took the trouble to pick up the shoehorn, put on the shoes using the shoehorn, put the shoehorn back in place, and then take the guest room key separate from the shoehorn and go out of the room. It is possible to quickly put on shoes and go out of the guest room with only extremely simple movements as described above, with almost no complicated movements such as going out.

In addition, carpets and flooring materials made of materials that easily generate static electricity are often used for the floors of hotel rooms and corridors, so the moment the guest touches the doorknob of the room to go out, There is a tendency for unpleasant situations such as the sudden discharge of static electricity to occur.
However, since the shoehorn 1 is provided with the static electricity discharge path pattern 34 and is provided with the static electricity discharge function, the guest can use the shoehorn 1 before touching the doorknob of the guest room when going out. Since it is possible to release static electricity by using the static electricity release function of the above and then touch the doorknob to open the door, it is possible to avoid the occurrence of an unpleasant situation such as the sudden discharge of static electricity as described above. it can.
Even when such a guest touches the doorknob of the guest room to go out, the guest must inevitably hold the key 80 and the shoehorn 1 connected to the key 80 at hand. Therefore, the guest does not need to make any complicated preparations such as separately preparing a device specializing in static electricity removal, and inevitably holds the shoehorn 1 together with the key 80 in his / her hand. After removing static electricity easily and surely, you can open the door by touching the doorknob and go out.

The shoehorn 1 can be used as a sales promotion goods for an accommodation facility such as a hotel after being used as described above.
Specifically, for example, when the guest checks out, the connecting ring 82 at one end of the chain 82 can be removed from the through hole 70 to release the connection with the key 80 main body, and the shoehorn 1 can be used as a single unit. The shoehorn 1 can be used as so-called promotional goods for the hotel by presenting the shoehorn 1 to the guest as a souvenir of staying at the hotel after making it in a state. It is possible.
Alternatively, for a so-called superior customer such as a guest who has stayed more than a predetermined number of times as a repeater or a regular customer for many years, the guest's name or nickname is the shoehorn 1 A shoehorn 1 formed as golden information 40 composed of a gold-plated layer 33 of a metal layer 30 may be presented on at least one surface of the shoehorn.

In addition to the hotel guest room keys as described above, the items connected to the shoehorn include, for example, various keys for automobiles and motorcycles, smartphones and mobile phones, pendant holders, wallets, and various other items. Various items such as bags, brooches, pendants and other ornaments are possible.

Further, as a commercial field suitable for using the shoehorn 1 as a promotional item, various fields other than the above-mentioned accommodation facilities are possible.
Considering the case of using it as a sales promotion tool for banks as an example, advertisements and advertisements in the banking industry are generally regulated by the Banking Act in addition to the regulations by the Fair Trade Law in other fields. Point Further attention is required, but for example, on one side, a logo, service mark, trademark, etc. used or registered as a trademark of the bank is plated with gold on the uppermost layer of the metal layer 30. It is formed as a pattern 20 that is visually recognized in gold by the layer 33. Then, on the other surface, a logo, a service mark, a trademark, or the like similar to that formed on one surface is formed as a pattern pattern 20 having a smaller external dimension than that of one surface. Then, the information 40 is formed in the portion where the symbol pattern 20 is not formed. In that case, the information 40 includes various information 40 about the bank, such as information on each branch and each location of the ATM located in the predetermined area of the bank, on the top surface of the metal layer 30, that is, gold. The gold color on the surface of the plating layer 33 may be formed so that it can be visually recognized as a clear and dignified image.
Regardless of the field and method of use, the shoehorn 1 according to the present invention is basically flat and has a thin shape of about 1.2 mm (up to 2 mm or less). Because it is formed, it can be smoothly stored and taken out without being bulky, for example, in the pocket or wallet of the user's clothes, and therefore it can be easily carried and carried anywhere and used anywhere. It is possible to do.
Further, since the copper-clad substrate 10 for manufacturing a flat-plate printed wiring board can be used as a starting material and manufactured by a manufacturing process (manufacturing line, etc.) for manufacturing a printed wiring board, a design can be produced on one or both sides of the copper-clad substrate 10. The pattern 20 and the information 40 can be formed with a high degree of freedom and, if desired, with a considerably high degree of definition, in a good-looking manner. Therefore, the sales promotion effect of the symbol pattern 20 and the information 40 can be made higher.
Further, since it is possible to manufacture the shoehorn 1 using only a general existing printed wiring board manufacturing line without separately preparing a dedicated production line or the like for manufacturing the shoehorn 1. There is also an advantage that the cost of the manufacturing process can be reduced.

<Second embodiment>

FIG. 6 is a diagram showing the overall configuration of the shoehorn according to the second embodiment of the present invention.
In addition, the same reference numerals as those used in the first embodiment are given to the constituent parts that are basically the same as the constituent parts described with reference to FIGS. 1 to 5 in the first embodiment. There is. This also applies to the description based on FIGS. 7 to 13 below.

In the shoehorn 1 of the second embodiment, a U-shaped clip piece 2 is provided on a portion held by a finger when the user uses the shoehorn 1.
By providing the clip piece 2, the shoehorn 1 can be used not only as the shoehorn 1 itself, but also as a clip for bundling shiori and documents used in books. There is.
Explaining the clip piece 2 in more detail, the clip piece 2 which is a U-shaped portion separated from the outer portion thereof is formed by the U-shaped notch (so-called slit) 3 formed in the substrate 11. Has been done. The clip piece 2 is continuous with the outer part in the portion corresponding to the upper open portion of the U-shape of the notch 3, that is, the continuous portion that is not notched (that is, the portion at the base of the clip piece 2) 4. doing.
In this case, the entire portion other than the U-shaped clip piece 2, that is, the entire outer portion separated from the U-shaped clip piece 2 by the U-shaped notch 3, is the shoehorn 1. It functions as the main body of the shoehorn in.
Due to the elastic deflection of the outer portions 5a and 5b adjacent to the U-shaped clip piece 2, those portions 5a and 5b are provided with the outer lower portion of the clip piece 2, that is, the clip piece 2. It is formed so as to function as a part that bends more than the part that slides the user's foot into the shoe as a shoehorn, which is wider by that amount.
That is, since the clip piece 2 is provided on the portion held by the user when using the shoehorn 1 with his / her finger, when the user puts his / her foot into the shoe using the shoehorn 1. The reaction force applied to the user's finger by the shoehorn 1 is applied to the shoehorn 1 main body centering on the U-shaped clip piece 2 itself, the portion 4 continuous with the outside thereof, and the outer portions 5a and 5b adjacent thereto. It is formed to function as a suspension, which is relieved by the deflection due to the elasticity of the part (this action and effect will be described later).

The symbol pattern 20 and the information 40 formed on the two front and back surfaces of the shoehorn 1 will be described in detail. As shown in FIG. 6, one surface of the shoehorn 1 has a symbol pattern 20 as a symbol pattern 20. The symbol pattern 21 provided as a substantially sliding surface and the symbol pattern 25 marked with a star are formed by the metal layer 30. Further, as the information 40, the character information 44 of "money luck UP" is formed by the metal layer 30. In both of the metal layers 30, a gold-plated layer 33 is formed as the uppermost layer thereof, as described in the first embodiment above, and the metal layer 30 is visually recognized as a pattern or characters drawn in gold on the surface thereof. It is supposed to be done.
Then, on one of the surfaces, particularly on the surface of the clip piece 2, the logo of the △ □ × bank, which is the orderer of the shoehorn 1, is also the symbol pattern 20 and the information 40. The logo pattern 90 is formed in gold by the gold plating layer 33 provided on the uppermost layer of the metal layer 30 similar to the above pattern pattern 20.
Since the portion of the clip piece 2 is provided at a position where the user can easily pick it up with his / her fingers when using the shoehorn 1, it is in the most conspicuous position in that sense. Therefore, the sales promotion effect can be further enhanced by displaying the logo of the company such as "△ □ × bank" to be promoted, the service mark, or the like at this position.
Further, since the shoehorn 1 has a flat shape and a thin shape, it can also be used as a shiori by using the original function of the clip for the paper piece of the clip piece 2.
In that case, for example, when the shoehorn 1 is sandwiched between the reading pages of a book using the clip piece 2, or when a plurality of documents are bundled and held by the shoehorn 1, the surface of the clip piece 2 becomes. It will remain visible above the foreground of the bundle of documents, that is, in the most prominent position. As described above, even when the shoehorn 1 is used as a bookmark or a clip for a document bundle, the clip piece 2 can be visually recognized at the most conspicuous position. Therefore, the logo printed on the surface of the clip piece 2 is visible. The pattern 90, the service mark, and the like become conspicuous, and the sales promotion effect can be further enhanced.

FIG. 7 is a diagram showing the configuration of the other surface of the shoehorn according to the second embodiment shown in FIG.

On the other surface of the shoehorn 1, a plurality of polka dot pattern patterns 26 as shown in FIG. 7, a star pattern pattern 25 similar to that provided on one surface, and "money luck". The character information 44 "UP" is formed so as to be visually recognized in gold by the gold plating layer 33 provided on the uppermost layer of the metal layer 30.
Then, on the other surface, particularly on the surface of the clip piece 2, the "△ □ × bank" of the △ □ × bank, which is the orderer of the shoehorn 1, is the same as in the case of the above one surface. As the logo pattern 90, which is one type of the design pattern 20, the logo is formed in gold by the gold plating layer 33 provided on the uppermost layer of the metal layer 30 as in the case of one of the above surfaces.
A solder resist layer 60 is formed on all the remaining parts other than the symbol patterns 25 and 26, the character information 44, and the logo pattern 90.
The solder resist layer 60 is, for example, when it is desired that the overall design of this surface be the special sky blue color currently used by the ordering party's △ □ × bank as its own so-called corporate color or corporate image color. The above-mentioned special sky blue color solder resist is prepared by mixing blue and white solder resist, and the solder resist 60 is formed by using the same. It is advisable to adjust or select and use a solder resist having a different color.

As a method for manufacturing the shoehorn 1 according to the second embodiment, except for the U-shaped clip piece 2, the shoehorn 1 is manufactured by a manufacturing method using the process for manufacturing a printed wiring board described with reference to FIG. Is possible.
The clip piece 2 can be formed by forming the above-mentioned U-shaped notch 3 in the substrate 11 using a router for processing a printed wiring board (not shown).
However, in addition to this, the clip piece 2 may be formed by punching out the portion of the U-shaped notch 3 described above by, for example, a so-called punching method using a press die.

In the second embodiment, the case where the logo pattern 90 is formed on both the front and back surfaces of the clip piece 2 has been described, but the present invention is not limited to this. In addition, for example, a logo pattern 90 may be formed on one surface, and information 40 other than a logo or a service mark may be formed on the other surface.
Alternatively, a logo pattern 90 is formed on one surface of the clip piece 2, and the surface of the pattern pattern 23 is roughened on the other surface as described with reference to FIG. A rough surface for non-slip may be formed. Alternatively, such a rough surface may be formed on the front and back utilization surfaces of the clip piece 2. Further, such a rough surface may be formed so as to function as a non-slip to the paper or the document when used as a bookmark.
Alternatively, a logo pattern 90 made of the metal layer 30 as described above is formed on one surface or both sides of the clip piece 2 so as to be significantly thicker than the thickness of the solder resist layer 60 around the logo pattern 90, and the thickness thereof is increased. The unevenness generated by the logo pattern 90 may function as a substitute for the rough surface for preventing the finger from slipping as described above.

FIG. 8 is a diagram showing a configuration of a modified example of the shoehorn according to the second embodiment shown in FIG.

In the modified example of the shoehorn according to the second embodiment, when the printed wiring board manufacturing company that manufactures the shoehorn 1 manufactures the shoehorn 1 with the intention of using it for its own sales promotion. Is assumed.

On one side of the shoehorn 1, as information 40, the character information 44 of "money luck UP" as explained based on FIG. 6 above and the character information "YKK for PWB!" The character information 45 for sales promotion including the company name of the shoehorn manufacturing company itself and the character information 46 "A good luck many charm" as a catch phrase related to the above character information 44 "money luck UP" are metal. The layer 30 is formed in gold, and the character information 47 such as the location of the head office of the shoehorn manufacturing company itself, the telephone number, and the company name in English is formed by the white printing ink layer 50.
Further, as the symbol pattern 20, the star-marked symbol pattern 25 as described based on FIG. 6 and the logo mark 91 currently used by the manufacturer of the shoehorn 1 are made golden by the metal layer 30. It is formed.
A solder resist layer 60 is formed in a portion other than the portion where the metal layer 30 is formed.
The character information 46 composed of the metal layer 30 is formed on both the front and back surfaces of the clip piece 2.
Further, the character information 47 composed of the printing ink layer 50 is printed and formed on the surface of the printing ink layer 50.
A protective layer 19 is provided on both the front and back surfaces of the shoehorn 1 in order to improve its slipperiness.

The configuration of the other surface of the shoehorn 1 may be the same as the configuration of the other surface as described above with reference to FIG. 8, but in addition, for example, slip as described with reference to FIG. The design pattern 21 as a surface may be formed instead of the character information 47, or may be a highly designed configuration mainly composed of the polka dot pattern pattern 26 as described with reference to FIG. 7.

Here, in the shoehorn 1 according to the second embodiment, the action mainly of the clip piece 2 and the effect due to the clip piece 2 will be described.
13 (a)-(d) show the actions and effects mainly of the clip piece when the user puts his / her foot into the shoe by using the shoehorn having the clip piece according to the present invention ((a) and (a) and (b)), as an example of the shoehorn according to the prior art, is a diagram schematically showing while comparing with the case of a metal shoehorn ((c) and (d)).

First, as a comparative example, based on FIGS. 13 (c) and 13 (d), the shoehorn is made of metal according to the prior art, and the external dimensions (particularly the length) are about the dimensions of the shoehorn 1 described in each of the above embodiments. Consider the case of a shoehorn 1001 having a size (that is, a length suitable for a portable shoehorn).
In this case, since the shoehorn 1001 is made of metal, it has sufficient durability and strength, but in exchange for that, almost no bending occurs.
Therefore, as shown in FIGS. 13 (c) and 13 (d), when the user puts the foot 1002 into the shoe 1003 using the shoehorn 1001, it is first shown on the left side of FIG. 13 (c). In addition, the shoehorn 1001 is attached to the heel portion 1004 of the shoe 1003 in an oblique posture. Generally, a long shoehorn with a length of 30 cm or more can be used by attaching it to the shoe in a posture close to vertical from the beginning, but a short shoehorn with a length of about 15 cm at most like a portable shoehorn can be used. In the case of, as you can see by actually trying it, it is very difficult to use it if you attach it to your shoes in a posture close to vertical from the beginning.
At this time, the user's hand 1007 is grasping the vicinity of the rear end portion 1006 of the shoehorn 1001 in a state as shown on the right side of FIG. 13C.
Then, as the user deeply inserts the foot 1002 into the shoe 1003, as shown in FIG. 13 (d), the tip 10008 of the shoe spatula 1001 is pushed backward by the heel 1005 of the foot 1002. Is added.
Then, the force Fkb is transmitted to the rear end portion 1006 of the shoehorn 1001 as a moment force Fkbm with the heel portion 1004 as a fulcrum. That is, the moment force Fkbm is applied to the user's finger 1009 from the rear end portion 1006 of the shoehorn 1001 as a strong reaction force when the foot 1002 is put into the shoe 1003. In most cases, the reaction force Fkbm is a force that presses the edge portion of the rear end portion 1006 of the shoehorn 1001 so strongly that it bites into the vicinity of the joint of the user's finger 1009. There is a risk of unpleasant pain in the hand 1007.

In contrast, in the case of the shoehorn 1 according to the present invention, it is sufficient because it is most preferably formed by using a substrate for a printed wiring board such as a glass epoxy substrate 11 as its main structural material. It has durability and mechanical strength, good workability, and flexibility suitable for a shoehorn. Moreover, it has a clip piece 2 that can bend (or move) independently of the portion of the shoehorn 1 that functions as the shoehorn itself, and the clip piece 2 is provided by the user to the shoehorn 1. It is provided in a position that is easy to grasp with your hands (fingers) when using.
Therefore, the shoehorn 1 according to the present invention has a reaction force Fkbm as in the case of the shoehorn 1001 according to the above-mentioned prior art when the user puts the foot 1002 into the shoe 1003 by using the shoehorn 1. As a result, it is possible to avoid the inconvenience that the user suffers unpleasant pain from his / her finger 1009 or hand 1007.

More specifically, when the user puts the foot 1002 into the shoe 1003 using the shoehorn 1 according to the present invention, the shoehorn 1 is initially in an oblique posture as shown on the left side of FIG. 13A. It is attached to the heel part 1004 of the shoe 1003. As shown on the right side of FIG. 13A, the posture of the entire shoehorn 1 at this time is an oblique posture forming an angle θ0 with respect to the vertical direction, and no bending (bending) has yet occurred. It is an almost straight flat plate. That is, both the front end 108 and the rear end 106 are in an oblique posture with an angle θ0 with respect to the vertical direction. This posture itself is the same as in the case of the metal shoehorn 1001 according to the above-mentioned prior art.
Then, as the user deeply inserts the foot 1002 into the shoe 1003, a force Fkb that is pushed backward by the heel 1005 of the foot 1002 is applied to the tip 108 of the shoehorn 1.
The force Fkb acts as a force for bending the shoehorn 1 in the upper portion as a whole, with the portion applied to the heel portion 1004 as the starting point of bending. Therefore, at this time, as shown on the left side of FIG. 13B, the shoehorn 1 is in a state in which the portion above the heel portion 1004 is bent. Then, due to this bending, the reaction force Fkb acting on the tip 108 of the shoehorn 1 when the foot 1002 is put into the shoe 1003 is directly transmitted as a moment of force to the rear end 106 as a force Fkbm, which is alleviated. It becomes.
Further, as the shoehorn 1 bends in this way, as shown on the right side of FIG. 13B, the angle θr of the rear end portion 106 of the shoehorn 1 with respect to the vertical direction changes only slightly from the initial angle θ0. It will not be done. That is, the shoehorn 1 according to the present invention is easy to use due to the good flexibility of the shoehorn 1 body even if the clip piece 2 is not provided.

Moreover, at this time, it is advantageous that the clip piece 2 is provided, and the shoehorn 1 has a larger bending width than when the clip piece 2 is not provided. Therefore, the force Fkbm applied to the finger 1009 is increased. It is even more advantageous for mitigation.
This is because, for example, as already described with reference to FIG. 6, the outer portions 5a and 5b adjacent to the clip piece 2 are not provided with the outer lower portion of the clip piece 2, that is, the clip piece 2 is not provided, and the shoehorn main body. This is because the width is narrower than the portion where the user's foot is slid into the shoe, so that it is possible to flex more with respect to a bending moment of the same magnitude.
At this time, the clip piece 2 can move independently from the outer portion of the notch 3 that surrounds the clip piece 2 from three directions, that is, the portion that functions as the shoehorn body of the shoehorn 1. Therefore, FIG. 13B. As shown on the right side of, the angle θk of the clip piece 2 with respect to the vertical direction at this time can be maintained at the initial angle θ0 before the foot is put into the shoe. That is, even if the posture of the portion where the user's foot 1002 is slid into the shoe 1003 as the shoehorn body changes significantly, the clip piece 2 can move independently of it, and the clip piece 2 is originally Since it has an appropriate elasticity as a clip, the elasticity works in an advantageous manner to more effectively alleviate the reaction force Fkbm being directly transmitted to the user's finger 1009 or hand 1007. Can be done.

As described above, according to the shoehorn 1 of the present invention, the shoehorn 1 itself can be significantly bent, and the clip piece 2 is an outer portion thereof (that is, a portion that functions as the shoehorn body). By being able to move and bend independently of the shoehorn, the reaction force Fkb that the shoehorn gives to the finger 1009 and the hand 1007 when the user puts the foot 1002 into the shoe 1003 using the shoehorn 1 is clipped. It can be alleviated by the elastic deflection of the piece 2 and the outer portions 5a and 5b adjacent to the piece 2.
In the above description of the action, the case of a metal shoehorn was considered as a comparative example, but other materials of the conventional shoehorn to be compared with the present invention include, for example, acrylic and styrene. An example is one made of a type of plastic. They are significantly inferior in both flexibility and mechanical strength and flexibility to the substrate for the printed wiring board, which is the main structural material of the shoehorn 1 of the present invention. Therefore, it is difficult or impossible for the conventional plastic shoehorn to achieve the above-mentioned actions and effects that can be achieved by the shoehorn according to the present invention.

<Third embodiment>

FIG. 9 is a diagram showing the overall configuration of the shoehorn according to the third embodiment.

The shoehorn 1 is configured by using a film substrate 111 made of polyimide as its main structural material instead of the glass epoxy substrate, unlike the configuration of the shoehorn 1 according to the first to third embodiments described above. It is one of the main features.

The shoehorn 1 has a maximum length x width of less than or equal to the dimensions of a so-called commuter pass (pass) holder or wallet card holder, and can be stored in the commuter pass (pass) holder or wallet card holder. ..
However, it goes without saying that the external dimensions may be larger than that.
In particular, the width in the lateral direction can be made wider than that of the shoehorn 1 using the glass epoxy substrate 11 described in the first and second embodiments described above.
This is because, in general, the film substrate 111 made of polyimide is extremely thin and more flexible than the glass epoxy substrate 11, so that the width direction as shown by the arrow W in FIG. 9 is larger than that of the glass epoxy substrate 11. This is because even if the size is wide, it will bend in the width direction along the roundness (curved surface) of the user's foot with extremely good followability.

As shown in FIG. 9, a plurality of striped patterns 27 made of a metal layer 30 are arranged and formed as a pattern pattern 20 on one surface of the shoehorn 1. The striped pattern 27 is set to substantially function as a sliding surface.
Further, as a design pattern 20 for design decoration, a hexagonal pattern 28 made of a metal layer 30 is formed.
A solder resist layer 60 is formed in a portion other than the metal layer 30.

The other surface of the shoehorn 1 may have the same configuration as that of FIG. 9, but other than that, as shown in FIG. 8, for example, character information 44, character information 45, character information 46, character information 47, and design By forming the pattern 25, the logo mark 91, and the like, the shoehorn 1 may be configured to be used as a sales promotion tool.
Alternatively, by forming a polka dot pattern pattern 26 or the like as shown in FIG. 7, a configuration having a high design property may be obtained.
Alternatively, various symbol patterns 20 and information 40 described based on FIGS. 1 to 7 may be appropriately selected and combined.

Here, the film substrate 111 made of polyimide used as the main structural material in the shoehorn 1 according to the third embodiment generally has a thickness of about 12-50 μm. A copper-clad film substrate in which a copper foil having a thickness of about 12-50 μm is laminated on one side or both sides of such a thin film substrate 111 may be used as a substantial starting material for manufacturing a flexible printed wiring board. There are many.
The shoehorn 1 according to the third embodiment, which uses such a thin film substrate 111 as a main structural material, is used as a substitute for a business card or, for example, as a sales promotion tool for distribution to customers, prospects, and the like. It is suitable for. Alternatively, it is also suitable for being used as a bookmark.

As described above, the film substrate 111 itself is extremely thin and highly flexible, and has sufficient durability and mechanical strength, but the metal layer 30 is relative to the thickness of the film substrate 111. If it is too thick, the flexibility of the original film substrate 111 may be impaired due to the low flexibility of the metal layer 30.
Therefore, in such a case, the overall thickness of the metal layer 30 may be made thinner than the thickness when the metal layer 30 is formed on the glass epoxy substrate, or the copper foils 12 and 13 may be formed. It is desirable not to impair the flexibility of the shoehorn 1 as a whole, such as by changing to a shoehorn made of only a single layer.

<Fourth Embodiment>

FIG. 10 is a diagram showing an overall configuration of a shoehorn according to a fourth embodiment of the present invention.

The shoehorn 1 uses the film substrate 111 as its main structural material as in the case of the shoehorn according to the third embodiment, but is narrower than the shoehorn of the third embodiment. And it is formed to have a long external dimension.
On both the front and back sides of the shoehorn 1, a scale 42 in 1 mm increments that can be used as a measure, a design pattern 29 that imitates a printed circuit, and the manufacturer of this shoehorn 1 called "YKK JPN". Company name logo pattern 90 and logo mark 91, and character (number) information 48 indicating the phone number of the shoehorn manufacturer's own phone number, the location of the shoehorn manufacturer's own head office, the location of each branch office, and the product lineup handled. A large amount of information 40 is formed, such as character information 47 such as a company name written in English (the specific expressions of characters and numbers are omitted in FIG. 10 and shown as "...").
A through hole 70 is formed at one end of the shoehorn.
The shoehorn 1 is provided with a clip piece 2, and the film substrate 111 is thin, so that the shoehorn 1 is suitable for being used as a bookmark.

In connection with the fact that the company "YKK JPN", which is the manufacturer of this shoehorn 1, is a printed wiring board manufacturing company, it is formed on both the front and back sides of the printed wiring board as an image of its own product. The design pattern 29, which is a model of the circuit pattern and the circuit pattern of the inner layer, the company name logo pattern 90 and logo mark 91 of the manufacturer of this shoehorn 1 "YKK JPN", and this shoe. The character (number) information 48 indicating the telephone number of the manufacturer of the shoehorn 1 needs to be conspicuous and to bring out a sense of luxury in order to meet the purpose of sales promotion of the manufacturer of the shoehorn 1. is there. Therefore, it is desirable that the pattern pattern 29, the character information 48, the logo pattern 90, and the logo mark 91 are formed by a metal layer 30 having a gold plating layer 33 on the uppermost layer.
Then, it is preferable to form, for example, black or other solder resist layer 60 having a desired color in the portion other than the portion where the metal layer 30 is formed, as described in other embodiments. The same is true.
The scale 42 in 1 mm increments, which can be used as a measure, does not need to stand out and create a sense of quality by itself, and therefore the need to use the gold plating layer 33 is low, so that, for example, a white or yellow printing ink It may be composed of the layer 50.
In addition, a large amount of specific and practical detailed information such as the location of the head office of the shoehorn manufacturer itself, the location of each branch office, the lineup of products handled, and the character information 47 such as the company name written in English is the metal layer. Although it may be formed by 30, it may be formed by a printing ink layer 50 which can be formed easily and at low cost by a general printing machine.

The design pattern 20, information 40, logo pattern 90, etc. as described above may be provided on both the front and back surfaces of the shoehorn 1, but they are provided on only one surface and on the other surface. For example, it is possible to provide only the symbol pattern 21 that can be used as the sliding surface of the foot as shown in FIG. In addition, as in the case of each of the above-described embodiments, it goes without saying that various changes and variations can be made.
Further, when the shoehorn 1 is arranged and used by all the employees belonging to one company, the name of the company to which the shoehorn 1 belongs is written on the surface of the clip piece 2. Then, when some kind of meeting or party is held, each person carries this shoehorn 1 in the chest pocket with a clip, and the name of the company to which the shoehorn is written on the surface of the clip piece 2 is displayed on the chest. Since it will be displayed conspicuously on the front of the pocket, it is possible to use this shoehorn 1 as a name tag.

FIG. 11 is a diagram showing a configuration of a modified example of the shoehorn according to the fourth embodiment shown in FIG.

Further, FIG. 12 is a diagram showing an example of a case where damage occurs in the vicinity of the base portion of the clip piece in the shoehorn according to the fourth embodiment shown in FIG.

In the shoehorn 1 according to the fourth embodiment, a film substrate 111 made of polyimide having sufficient mechanical strength and durability is basically used, but it is exposed to harsh usage conditions for a long period of time. If the film continues to be formed or if an excessive bending force is frequently applied, cracks 1201, 1202, rupture 1203, and the like as shown in FIG. 12 will penetrate or near the base portion 4 of the clip piece 2. It may occur around the hole 70.
Therefore, in order to prevent such an inconvenient situation from occurring, as shown in FIG. 11, the strength of materials is adjusted in the vicinity of the base of the U-shaped clip piece 2 and around the through hole 70. In order to reinforce, it is preferable to form the reinforcement pattern 101 made of the metal layer 30.
When the metal layer 30 constituting the reinforcing pattern 101 is too thick and the elasticity of the portion is impaired, or the rigidity is too high and the metal layer 30 is bent at the boundary (end) portion of the reinforcing pattern 101. There is a risk that the stress will be concentrated and new cracks or tears will occur in that part.
Therefore, in order to avoid the occurrence of such an inconvenient situation, the total thickness of the metal layer 30 composed of a plurality of layers should not be too thick, or the one composed of a single layer of the copper foil pattern 31. By taking measures such as setting the above, the reinforcing pattern 101 can be prevented from becoming too rigid, and the film substrate 111 can be moved to 1204 near the base of the clip piece 2 or the periphery of the through hole 70. It is desirable to be able to achieve the appropriate strength reinforcement of.
Alternatively, the reinforcing pattern 101 may be composed of the solder resist layer 60 in addition to the metal layer 30.
Further, when the reinforcing pattern 101 is formed as a so-called solid pattern, neither the symbol pattern 20 nor the information 40 is formed in this portion, so that the area of this portion is wasted.
Therefore, in order to reduce such waste as much as possible, the reinforcing pattern 101 is processed by an etching method or a half etching method within a range that does not impair the original reinforcing function, and some desired symbol pattern 20 or information 40 is obtained. It may be formed.

Although not shown, a substrate 11 made of glass epoxy was used instead of the film substrate 111, although the shape, the pattern pattern 20 formed on the front and back, the information 40, and the like were the same as those of the shoehorn 1 shown in FIG. It is also possible to use a shoehorn 1. Further, in that case, a transparent solder resist, a protective film, or the like may be used so that the translucent substrate 11 can be seen through to the back surface thereof.
Alternatively, a semi-transparent shoehorn may be obtained by using a material for a multilayer substrate such as a prepreg and providing a symbol pattern 20 or the like in the intermediate layer so that the symbol pattern 20 or the like can be seen through.
Such a shoehorn 1 can also be used as a bookmark, although it is a little thick. However, the present invention is not limited to this, and the clip piece 2 may be used as a means for preventing deviation from the chest pocket when it is stored in the chest pocket.

As described above, the shoehorn according to the present invention is easy to carry (convenient to carry), has high durability, has good convenience as the shoehorn itself, and has a plurality of uses. It is a shoehorn that can be used with good convenience.
Also, from the viewpoint of manufacturing, it is possible to adapt to various various needs by using a commercially available copper-clad substrate for printed wiring boards as a starting material without preparing a dedicated production line. There is a great advantage that a pattern or information can be formed on the surface with a high degree of freedom.

1 Shoe spatula 2 Clip piece 3 Notch 4 Continuous part 5 Outer part adjacent to clip piece 2 10 Copper-clad board 11 Glass epoxy board 12 Copper foil 13 Copper foil 19 Protective layer 20 Design pattern 30 Metal layer 31 Copper foil pattern 32 Nickel plating layer 33 Gold plating layer 34 Electrostatic discharge path pattern 40 Information 50 Printing ink layer 60 Solder resist layer 70 Through hole 90 Logo pattern 91 Logo mark 101 Reinforcement pattern 111 Film substrate

Claims (10)

At least one of the two front and back surfaces of a flat plate-like or film-like substrate for a printed wiring board has a desired pattern or desired information on a metal layer and at least the solder resist layer and a printing ink layer. A shoehorn formed by a metal layer. In the shoehorn according to claim 1.
A shoehorn having a portion that functions as a clip piece formed at one end of the shoehorn. In the shoehorn according to claim 2.
The clip piece is a shoehorn formed by the substrate itself constituting the shoehorn. In the shoehorn according to claim 3,
In the clip piece, a portion separated from the outer portion by a notch formed on the substrate and continuous in three directions out of four directions of front, back, left and right is opened in the remaining one direction other than the three directions. Due to the elasticity of the portion corresponding to the portion, that is, the portion not notched, which is continuous with the outer portion and at least the portion where the clip piece is continuous with the outer portion, the notch allows the clip piece to be viewed from the outside. A shoehorn in which the separated portion is formed to function as the clip piece. In the shoehorn according to claim 4.
The clip piece is provided on a portion held by the user with his / her finger when using the shoehorn, and the shoehorn gives the shoehorn to the finger when the user puts his / her foot in the shoe using the shoehorn. A shoehorn formed so that the reaction force is alleviated by the elastic deflection of the clip piece and the outer portion adjacent thereto. In the shoehorn according to any one of claims 1 to 5,
When the user puts his / her foot into the shoe using the shoehorn, the sliding surface for improving the sliding of the foot is the metal layer, the solder resist layer, and the printing ink layer. A shoehorn formed by at least one. In the shoehorn according to any one of claims 1 to 6,
The metal layer is a copper foil layer or a copper plate layer provided on the surface of a substrate for a printed wiring board, the copper foil layer or the copper plate layer and a nickel plating layer provided on the copper foil layer, or the copper foil layer or the said. It is composed of at least one of a copper plate layer, the nickel plating layer, a gold plating layer provided on the copper plate layer, the copper foil layer or the copper plate layer and a solder layer provided on the copper plate layer. Shoe Bella. In the shoehorn according to any one of claims 1 to 7.
A shoehorn having a reinforcing pattern made of the metal layer, which is provided as a strength of materials reinforcing material in at least a desired part of the shoehorn. In the shoehorn according to any one of claims 1 to 8,
A shoehorn having a pattern made of the metal layer, which can be used as an electrical path for discharging static electricity charged to the user. In the shoehorn according to any one of claims 1 to 9,
It has at least one through hole formed through which a ring or a connecting metal fitting or a connecting string for connecting to an article different from the shoehorn is passed, and the through hole A shoehorn formed so that the shoehorn can be connected to the separate article.