JP2023058817A - Synthetic resin eyeball for doll - Google Patents

Abstract

To provide a synthetic resin eyeball for a doll with a smooth boundary between the iris part and the white part of the eye, provided with a bright iris part and the outer peripheral surface of the glossy white part of the eye, and excellent in realism. An eyeball for a doll to be held by an eyeball holding part of a doll, comprising a top surface portion 5 formed in a concave shape and a skirt portion 7 which is continuous with the top surface portion 5 and gradually widens in diameter. an iris portion 21 arranged on the top surface portion 5; 21 and a cover portion 23 made of transparent synthetic resin arranged in a dome shape. From the inner bottom surface to the skirt portion 7, it is formed in an R shape with no step. [Selection drawing] Fig. 4

Description

The present invention relates to eyeballs for dolls, and more specifically, for example, eyeballs are exposed from the inside to eyeball exposure holes (eyeholes) drilled in a hollow head body, and partly faces outward from the eyeholes. The present invention relates to synthetic resin eyeballs for dolls arranged in such a manner.

In the present specification, the term "doll" refers to any doll that imitates a human being with a torso, legs, arms, and head. A doll other than a human-like doll may be used as long as it is arranged so as to face either side, and a doll without a head that is clearly separated from the body may be used. In other words, it is a concept that targets all things that are generally called dolls, and includes dolls that imitate animals, imaginary creatures, robots, and the like.

As one of the parts that make up the doll, the eyeball occupies a fairly important weight. In other words, the more lustrous and vivid the iris, like the eyeballs of a living creature, the more beautiful the doll's expression.
Therefore, there are many complete dolls that have the main parts such as the head, legs, arms, and torso from the beginning, but do not have only the eyeballs. After the consumer purchases the doll, he or she separately purchases eyeballs that suit his/her taste and attaches them later.
In addition, a consumer places such an eyeball in contact with the eyehole of the head body from the inside, thereby exposing part of the white of the eyeball and the iris to the outside of the head body. This enhances the realism of the doll's expression.

Eyeballs for dolls include eyeballs called glass eyes that are made of glass, and these eyeballs are made of glass material and have a dome shape. It is suitable for expressing a sense of depth in the pupil by its effect, and is highly in demand because it can provide beautiful pupils.
However, since glass eyes are expensive regardless of whether they are handmade or machine-made, it has been desired to provide eyeballs for dolls that provide a similar sense of depth at a low price.
Therefore, eyeballs made of synthetic resin, called acrylic eyes, which are inexpensive, have attracted attention.

For example, in Patent Document 1, a cylindrical concave portion is provided on the top surface of an eyeball body (white part of the eye) formed of acrylic material or the like in a dome shape, and an iris portion printed on a circular paper sheet is placed in the concave portion. It is disclosed that a transparent convex synthetic resin cover (cornea) is attached to the inner bottom surface and fitted in the recess so as to be in close contact with the iris (see FIG. 9).
With such a configuration, it is possible to increase the distance between the iris portion and the outer surface of the corneal portion (cover portion), and efforts are being made to meet the needs of consumers by obtaining a sense of depth in the pupil.

JP 2009-247798 A

Eyeballs include those with circular iris and pupil, those with circular iris and narrow cat's-eye pupil, and those with vertically elongated substantially oval iris.
In particular, oval irises with vertically elongated irises are called so-called animetic eyes or character eyes because they look like the eyes of characters in anime, and are in high demand among consumers. is.

Here, it is assumed that the configuration of Patent Document 1 is adopted and an iris portion having such a vertically long elliptical shape is provided to form an animated eye.

First, a printed paper iris portion having a diameter that fits the inner bottom surface of a cylindrical recess provided on the top surface of the eyeball body (white part of the eye) is formed.
For this paper iris, for example, a vertically elongated cat's-eye pupil is printed in the central region of a white circular paper sheet, so there are white sheets (ground color) on the left and right of the pupil. state (see FIG. 9). Then, the paper-made iris portion is attached to the inner bottom surface of the cylindrical portion, and then the lens body is fitted into the concave portion to complete.
However, such a configuration may cause the following problems.
Due to the difference in physical properties between the white part of the eyeball body made of synthetic resin and the white part of the iris part made of paper, there is a possibility that the appearance of white will be different, which may cause discomfort (see Fig. 9). .).

Even if the iris is printed on the same acrylic board as the eyeball body, since there is an edge on the upper edge of the concave part of the eyeball body, the edge will create a shadow, resulting in the concave part. and the iris portion.

Alternatively, it may be conceivable to form a sheet on which only the cat's-eye-shaped pupil portion is printed, and attach this sheet to the inner bottom surface of the concave portion. According to this, it can be said that the above-described problems are less likely to occur.
However, it is difficult to affix such a cat's-eye-shaped pupil at a fixed position without shifting to the inner bottom surface of the concave portion. In addition, there is also the problem that it is very difficult to attach to the inner bottom surface of a sharp-edged cylindrical recess because it takes time and effort.
Furthermore, attaching the printed iris portion to the inner bottom surface of the concave portion creates at least a space between the concave portion and the iris portion. Each line appears clearly, and the effect of the lens body causes the space (gap) to appear to stand out. That is, in an actual human eyeball or an eyeball of a character in the world of comics or animation, there is no space (gap) or the like at the boundary between the iris portion and the white portion of the eye, and the boundary is smoothly continuous. For this reason, with conventional synthetic resin eyeballs, such unnatural spaces (gaps) impair the realism of the eyeballs, and there is a limit to the realism of the doll's facial expressions. there were.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-described inconveniences, and to provide an image that has a smooth and continuous boundary between the iris and the white part of the eye, has a bright iris part and the outer peripheral surface of the glossy white part of the eye, and is excellent in realism. To provide a synthetic resin eyeball for a doll.

In order to achieve the above problems, the first technical means of the present invention is a doll eyeball held in an eyeball holding part of a doll,
a main body made of synthetic resin, which is composed of a top surface portion formed in a concave shape and a bottom portion which is continuous with the top surface portion and gradually widens in diameter;
an iris portion arranged on the top surface portion;
A transparent cover made of synthetic resin that covers the outer peripheral surface of the main body and the iris in close contact with the iris and is arranged in a dome shape on the iris,
The top surface portion has a concave surface that is spherically recessed,
The synthetic resin eyeball for a doll is characterized in that the upper edge of the top surface is formed in an R shape without a step from the inner bottom surface of the concave surface to the hem.

In a second aspect of the present invention based on the first aspect of the present invention, the cover portion includes a first region that thinly covers a skirt portion region of the main body portion;
and a second region that covers the iris portion in a dome shape.

The third aspect of the present invention is the synthetic resin eyeball for a doll according to the first aspect or the second aspect of the present invention, wherein the cover portion is made of an ultraviolet curable resin.

The fourth aspect of the present invention is the aspect of any one of the first aspect to the third aspect of the present invention, wherein R1>R2 when the R of the inner bottom surface of the top surface portion is R1 and the R of the upper edge portion is R2. The synthetic resin eyeballs for dolls are characterized by having the following relationship.

In a fifth aspect of the present invention, in any one of the first aspect to the fourth aspect of the present invention, an eyeball orientation adjustment assisting portion is provided on the bottom portion of the main body portion,
The synthetic resin eyeball for a doll is characterized in that the eyeball orientation adjustment assisting part is provided with a jig insertion groove formed between two protruding parts projecting from the bottom part. .

ADVANTAGE OF THE INVENTION According to the present invention, a synthetic resin eyeball for a doll having a smooth and continuous boundary between the iris portion and the white portion of the eye, and having a vivid iris portion and the outer peripheral surface of the glossy white portion of the eye, and having excellent realism is provided. can provide.

1 is a schematic front view showing an embodiment of a synthetic resin eyeball for a doll of the present invention; FIG. 2 is a schematic bottom view of the synthetic resin eyeball for a doll shown in FIG. 1. FIG. 2 is a cross-sectional view taken along line III-III of FIG. 1; FIG. FIG. 2 is a cross-sectional view taken along line IV-IV of FIG. 1; FIG. 5 is a partially enlarged view of a region surrounded by a dashed line in FIG. 4; It is an image diagram showing a tracking (tracking eye) state. FIG. 10 is a schematic cross-sectional plan view showing a state in which a jig is inserted into the eyeball direction adjustment assisting part to adjust the direction of the eyeball. 1 is a schematic cross-sectional view showing a state in which a synthetic resin eyeball for a doll of the present invention is held in an eyehole (eyeball holding portion) of a doll's head; FIG. FIG. 2 is a cross-sectional view of a conventional synthetic resin eyeball for a doll;

BEST MODE FOR CARRYING OUT THE INVENTION A synthetic resin eyeball for a doll according to one embodiment of the present invention will be described below with reference to the accompanying drawings. It should be noted that this embodiment is merely one embodiment of the present invention and should not be construed as being limited to these, and design changes are possible within the scope of the present invention.

The eyeball 1 in this embodiment has a substantially bowl-shaped appearance, as shown in the figure.
The eyeball 1 is held by, for example, the outer peripheral surface 1b of the convex side (surface side) 1a being brought into contact with the eyehole (eyeball holding portion) G of the head H of the doll from the inner side of the head H. (See FIG. 9).
In this embodiment, it is assumed to be slidably fitted in the eyehole G. As shown in FIG.
At this time, a part of the eyeball 1 faces the front of the face from the eyehole G to form the facial expression of the doll.

The eyeball 1 is composed of a main body portion 3 serving as the white of the eye, an iris portion 21 disposed on the top surface portion 5 of the main body portion 3, and a cover portion 23 covering the iris portion 21 and the main body portion 3.

As shown in the figure, the main body portion 3 has a top surface portion 5 having a spherical concave surface 5a, and a hollow bowl-shaped hem extending from an upper edge portion 5b of the top surface portion 5 and gradually widening in diameter. The portion 7 forms a hollow, substantially hemispherical shape as a whole. That is, the bottom surface portion 9 of the main body portion 3 is located inward of the end portion 11 of the skirt portion 7 and formed to face the top surface portion 5 back-to-back (see FIG. 3).

The concave surface 5a of the top surface portion 5 is recessed in a perfect circle in plan view, and its radius of curvature R1 is, for example, 20 mm in diameter of the end portion 11 of the skirt portion 7 of the main body portion 3 in the present embodiment. Assuming a height of about 7 mm, the radius of curvature is preferably about 10 mm (R10). This is because the penetration depth D of the ultraviolet ray curable resin constituting the cover portion 23, which will be described later, is about 2 mm.
The curvature radius R1 of the concave surface 5a is not particularly limited and can be changed within the scope of the present invention. Also, the curved surface shape of the skirt portion 7 is not particularly limited and can be changed within the scope of the present invention.

The upper edge portion 5b of the top surface portion 5 continues from the inner bottom surface of the concave surface 5a of the top surface portion 5, and is formed in a gentle R shape without steps over the skirt portion 7 (see FIGS. 3 to 5).

The curvature radius R2 of the upper edge portion 5b and the curvature radius R1 of the concave surface 5a of the top surface portion 5 have a relationship of R1>R2 (see FIG. 5).
In the present embodiment, the radius of curvature R1 of the concave surface 5a of the top surface portion 5 is about 10 mm, while the radius of curvature R2 of the upper edge portion 5b is about 2.5 mm (R2.5).

Further, in the present embodiment, the upper edge portion 5b is formed with the same curvature radius R2 in the circumferential direction, but it is within the scope of the present invention even if the curvature radius is partially changed.
If the upper edge portion 5b continues from the inner bottom surface of the concave surface 5a of the top surface portion 5 and is formed in a gentle R shape without steps over the skirt portion 7, as in the present embodiment, the above-described It is not bound by the relationship of R1>R2. However, if the radius of curvature is extremely small, there is a risk that the edge will stand out, so this point should be taken into consideration.

According to the present embodiment, the main body portion 3 employs a configuration in which the thickness of the top surface portion 5 and the thickness of the bottom portion 7 are different (see FIGS. 3 and 4), but the interpretation is limited to this. However, it is also possible to adopt a configuration in which they are formed with the same thickness. Further, the thickness of the skirt portion 7 may be formed to be gradually thinned from the end portion 11 of the skirt portion 7 toward the top surface portion 5, or may be formed to be gradually thickened. often optional.

The material of the main body part 3 is not particularly limited as long as it can maintain a certain degree of strength because it becomes the main body of the eyeball 1. For example, a synthetic resin such as polycarbonate can be arbitrarily selected.
In the present embodiment, the body portion 3 is the white part of the eyeball 1, so it is preferable that a white material is selected or that the outer peripheral surface of the body portion 3 is colored white, but this is not a limited interpretation. However, it is within the scope of the present invention that the material is transparent, has a color other than white, or is appropriately selected. It is also possible to employ materials other than polycarbonate.

In this embodiment, an eyeball orientation adjustment assisting portion 13 is provided on the bottom portion 9 of the main body portion 3 (see FIGS. 2 to 5 and 7).

The eyeball direction adjustment assisting unit 13 is used when the consumer wants to change the direction of the eyeball 1, i.e., change the direction of the eyeball 1, i.e., the pupil in any direction up, down, left, or right to change the facial expression after attaching the eyeball 1 to the eyehole G of the head H. It is an auxiliary part that can be easily performed using the jig J when desired.
The eyeball direction assisting part 13 constituting the present invention is provided on the bottom part 9 of the main body part 3, and it is sufficient if a jig can be inserted to move the eyeball 1 in any direction up, down, left, or right. Design changes are possible within the scope of the present invention.
Further, the eyeball direction adjustment assisting portion 13 is configured so as not to protrude from the end portion 11 of the hem portion 7 of the main body portion 3 . If the eyeball orientation adjustment assisting portion 13 is provided so as to protrude from the end portion 11 of the hem portion 7 of the main body portion 3, a protrusion portion will be present in the head portion H, and in particular, a small head portion with a narrow internal space will be affected. This is because, in the case of a doll with a head, it may occupy the space inside the head and become a hindrance.

In the present embodiment, the eyeball orientation adjustment assisting portion 13 is a jig formed between two pieces of rectangular projecting portions 15, 15 integrally projecting from the bottom surface 9 of the main body 3 with a predetermined interval. An insertion groove 17 is provided. The two protruding portions 15, 15 are arranged side by side in the same longitudinal direction Y1 as the iris portion in accordance with the vertically elongated iris portion 21 provided on the top surface portion 5 of the main body portion 3 (FIGS. 2 to 4). 5 and Figure 7).
The reason for this configuration is as follows.
In the case of having the vertically elongated iris portion 21 as in the present embodiment, the orientation of the iris portion 21 is important. That is, the vertically long iris portion 21 needs to be arranged in a vertically long shape. For example, if the vertically elongated iris portion 21 is displaced by 90 degrees and arranged horizontally, the iris portion 21 has no meaning and poses a problem in the expression of the doll.
Therefore, by providing two protrusions 15, 15 extending in the same direction (longitudinal direction Y1) as the longitudinal direction of the iris portion 21, when attaching the eyeball 1 to the eyehole G from the inner space side of the head H, Since the direction of the eyeball (the position of the iris portion 21) can be grasped easily and accurately, it is very easy to handle. The illustrated jig J is an embodiment and should not be construed as limited.

The two protruding portions 15, 15 are formed to have such a protruding height as to be accommodated in the internal space of the main body portion 3 so as not to protrude from the end portion 11 (see FIG. 3).
Furthermore, although the top surface portion 5 (concave surface 5a) of the main body portion 3 is formed thin, two projecting pieces 15, 15 are integrally formed on the back side of the top surface portion 5 (concave surface 5a). Therefore, the projecting pieces 15, 15 function as reinforcing members.

The eyeball orientation adjustment assisting unit 13 is not limited to the present embodiment, and other forms may be adopted as long as the orientation of the eyeball 1 can be finely adjusted via the jig J. It is possible, and the design can be changed as appropriate within the scope of the present invention.
For example, although illustration is omitted, the main body portion is arranged such that two protruding portions extending in the lateral direction X1 at a predetermined interval are orthogonal to the two protruding portions 15, 15 extending in the longitudinal direction Y1 of the present embodiment. It is also possible to further project from the bottom surface portion 9 of 3 to form a cross-shaped jig insertion groove.

In this embodiment, the iris portion 21 is provided on the concave surface 5a of the top surface portion 5 of the body portion 3 by direct printing. In addition, in this embodiment, in order to provide an animated eye, a longitudinally elongated substantially elliptical iris portion having a longitudinal Y1 portion longer than a lateral X1 portion is employed (see FIG. 1).
The iris portion 21 is printed in the vertical direction Y1 over the entire R-shaped slope 19a of the concave surface 5a, and printed in the horizontal direction X1 up to the middle of the R-shaped slope 19b (see FIGS. 3 and 4).
It should be noted that the iris portion 21 may be printed only on the central region of the concave surface 5a that does not overlap the R-shaped slopes 19a and 19b of the concave surface 5a, and this is within the scope of the present invention.

The iris portion 21 can be designed to be circular in plan view or have other shapes within the scope of the present invention. A highlight pattern is printed in any color.
Any shape may be selected according to the size and shape of the pattern on the surface of the iris portion 21. For example, an ellipse, a perfect circle, or a star may be selected. In addition, it is possible to freely select an iris portion in which only coloring is printed without printing a pattern.
Also, an iris portion printed three-dimensionally may be employed. For example, it may have a convex shape at the center, a concave shape at the center, or a shape such as a crown or a star shape.

The cover portion 23 is arranged so as to cover the outer peripheral surface of the skirt portion 7 of the main body portion 3 and the iris portion 21 in close contact with a transparent resin, and thinly covers the area of the skirt portion 7 of the main body portion 3. The first region 23a and the second region 23b covering the top surface portion 5 of the body portion 3 in a dome shape thicker than the first region 23a are formed smoothly and continuously. , the peripheral surface of the skirt portion 7 of the main body portion 3 and the iris portion 21 are integrally formed by molding using a predetermined mold.
That is, when the thickness of the first region 23a is t1 and the thickness of the second region 23b is t2, there is a relationship of t1<t2.
In the present embodiment, the thickness t1 of the first region 23a and the thickness t2 of the second region 23b can be made different by molding the cover portion 23. Therefore, the thickness of the second region 23b is It is possible to form the thickness t1 of the first region 23a to be thin while enhancing the lens effect by making the thickness t2 a thick dome shape. Therefore, when the eyeball 1 is brought into contact with the eyehole G of the doll's head H from the inside, the eyeball 1 can be projected from the eyehole G by an appropriate amount (see FIG. 9).

The material of the resin that forms the cover part 23 can be appropriately selected according to demand from a material that is highly transparent and capable of forming a glossy surface and that can be sufficiently hardened to maintain the outer shape of the eyeball 1. . For example, an ultraviolet curable (UV) resin is employed in this embodiment. By adopting an ultraviolet curable (UV) resin, the curing progresses quickly, so the production time can be shortened. If a two-liquid mixed type resin (for example, epoxy resin) is used, the time required for curing will be longer, but the gloss of the surface will be improved, and deterioration over time will be relatively mild. Note that the resin is not limited to these examples, and other transparent resins may be used.

When the eyeball 1 is formed in this way, the distance between the iris portion 21 printed on the concave surface 5a of the top surface portion 5 of the main body portion 3 and the thick dome-shaped second region 23b of the cover portion 23 is increased. As a result, the lens effect provides a sense of depth, and the iris portion 21 appears three-dimensional and large.
In addition, since a sense of depth is obtained, a follow-up (following eye) effect is also obtained by the lens effect (see FIG. 6). That is, even when the user views the eyeball 1 from a direction (diagonal lateral direction) deviating from the center of the eyeball 1 (the region where the second region 23b protrudes most), the lens-like protrusion of the cover portion 23 Since the iris portion 21 can be seen on the surface of the second area 23b, the consumer and the doll can be made to feel as if they are always looking at each other, and the doll's expression becomes richer.

The top surface portion 5 of the main body portion 3 is recessed to form the concave surface 5a, and the upper edge portion 5b of the top surface portion 5 is continuous from the concave surface 5a and is formed in a gentle R shape without steps over the skirt portion 7. Due to the lens effect of the thick dome-shaped second region 23b of the cover portion 23, the boundary region between the body portion 3 and the iris portion 21, which is the white of the eye, becomes difficult to see. That is, since the space (gap, boundary line, step, etc.) at the boundary between the main body 3 and the iris 21, which was clearly visible in the prior art, is less visible, a beautiful appearance is provided.

Furthermore, the outer diameter of the cover portion 23 (outer diameter of the eyeball 1) is formed to match the outer diameter dimension of the eyeball 1 set in the eyehole G of the head H of the doll. As a result, when the eyeball 1 is brought into contact with the eyehole G of the doll's head H from the inside, the eyeball 1 protrudes from the eyehole G with an appropriate amount of protrusion, thereby producing a well-proportioned expression of the doll. It becomes possible to

In this embodiment, the body portion 3 is formed in a hollow hemispherical shape, but the inner shape of the body portion 3 may be freely changed in design according to the specifications. For example, the inside of the body portion 3 may be formed solid. However, it is preferable to prevent the eyeball orientation adjustment assisting portion 13 from protruding outward.

Since the cover part 23 can be molded integrally with a transparent resin material by molding, for example, it is possible to place predetermined ornaments such as jewels and glass beads (glass pieces) on the cover part 23, thereby enhancing the decorative effect. It is also possible to increase the interest of the consumer by increasing it.
The iris portion 21 is not directly printed on the concave surface 5a of the main body 3, but is printed on a flexible thin sheet on the concave surface 5a of the main body 3. However, the design can be appropriately changed within the scope of the present invention.

The present invention is applicable to all dolls, regardless of the size of the overall height of the doll.

1 Eyeball 3 Main Body 5 Top Surface 5a Concave Surface 5b Upper Edge 7 Bottom 13 Eyeball Orientation Adjustment Auxiliary Part 15 Projection 21 Iris 23 Cover 23a First Region 23b Second Region

Claims (5)

A doll eyeball held in an eyeball holding part of a doll,
a main body made of synthetic resin, which is composed of a top surface portion formed in a concave shape and a bottom portion which is continuous with the top surface portion and gradually widens in diameter;
an iris portion arranged on the top surface portion;
A transparent cover made of synthetic resin that covers the outer peripheral surface of the main body and the iris in close contact with the iris and is arranged in a dome shape on the iris,
The top surface portion has a concave surface that is spherically recessed,
A synthetic resin eyeball for a doll, wherein an upper edge portion of the top surface portion is formed in an R shape without a step from the inner bottom surface of the top surface portion to the skirt portion. The cover portion includes a first region that thinly covers a bottom region of the main body portion;
2. The synthetic resin eyeball for a doll according to claim 1, further comprising a second area that covers the iris part in a dome shape. 3. The synthetic resin eyeball for a doll according to claim 1, wherein the cover portion is made of an ultraviolet curable resin. 4. The composite for a doll according to any one of claims 1 to 3, wherein R1 is the radius of the inner bottom surface of the concave portion, and R2 is the radius of the upper edge portion, wherein a relationship of R1>R2 is established. Resin eyeball. An eyeball direction adjustment assistance part is provided on the bottom part of the main body part,
5. The eyeball orientation adjustment assisting portion according to claim 1, wherein the jig insertion groove is formed between two protrusions protruding from the bottom portion. Eyeballs for dolls.

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