MODEL TOY

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This patent application claims priority to Japanese Patent Application JP 2024-134442 filed Aug. 9, 2024, which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present invention relates to a model toy.

BACKGROUND

Japanese Patent Publication No. 2012-105859 (JP 2012-105859 A) discloses a doll toy in which a skeleton body is covered with an outer skin.

BRIEF SUMMARY

In the toy disclosed in JP 2012-105859 A, the outer skin is configured to cover the skeleton body, and the outer skin cannot be assembled by itself as a toy.

Under such circumstances, the present invention provides a model toy configured to enable an outer skin covering a skeleton body to be assembled and to enable the outer skin to be assembled independently of the skeleton body.

An aspect to solve the above problem is a model toy that includes a plurality of first toy components constituting the model toy, and a plurality of second toy components constituting the model toy, wherein the plurality of first toy components constitute a first structure having a first appearance of the model toy by being connected without the second toy component interposed therebetween, wherein the plurality of second toy components constitute a second structure having a second appearance, different from the first appearance, of the model toy by being connected without the first toy component interposed therebetween, and wherein the model toy is configured to be capable of housing the second structure in the first structure.

According to the present invention, it is possible to provide a toy configured to enable an outer skin covering a skeleton body to be assembled and to enable the outer skin to be assembled independently of the skeleton body.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1A to 1B illustrate a mode of an outer skin structure 101 of a model toy 100 according to an embodiment, in which FIG. 1A is a view illustrating an example of an appearance front face of the outer skin structure 101, and FIG. 1B is a view illustrating an example of an appearance side face thereof;

FIGS. 2A to 2B illustrate a skeleton structure 201 of the model toy 100 according to the embodiment, in which FIG. 2A is a view illustrating an example of an appearance front face of the skeleton structure 201, and FIG. 2B is a view illustrating an example of an appearance side face thereof;

FIG. 3 is a view illustrating an example of a state in which the skeleton structure 201 is housed in the outer skin structure 101 of the model toy 100 according to the embodiment;

FIGS. 4A to 4D are views illustrating an example of an outer skin structure and a skeleton structure of a head portion of the model toy 100 according to the embodiment;

FIGS. 5A to 5C are views illustrating an example of an outer skin structure and a skeleton structure of a neck portion of the model toy 100 according to the embodiment;

FIGS. 6AA to 6AC are views illustrating an example of an outer skin structure and a skeleton structure of a right arm portion of the model toy 100 according to the embodiment;

FIGS. 6BA to 6BB are views for explaining the relationship between the outer skin structure and the skeleton structure of the right arm portion of the model toy 100 according to the embodiment;

FIGS. 6CA to 6CB are views illustrating an example of the outer skin structure of the right arm portion of the model toy 100 according to the embodiment; and

FIGS. 6DA to 6DD are views illustrating an example of the skeleton structure of the right arm portion of the model toy 100 according to the embodiment.

DETAILED DESCRIPTION

Hereinafter, an embodiment will be described in detail with reference to the accompanying drawings. Note that the following embodiment does not limit the invention according to the claims, and all combinations of features described in the embodiment are not necessarily essential to the invention. Two or more features of a plurality of features described in the embodiment may be freely combined. Furthermore, the same or similar components are denoted by the same reference signs, and redundant description will be omitted.

First, an example of a first appearance configuration of a model toy 100 according to the present embodiment will be described with reference to FIGS. 1A to 1B. FIG. 1A illustrates an example of an appearance front face of an outer skin structure 101 constituting a first appearance of the model toy 100, and FIG. 1B illustrates an example of an appearance side face of the outer skin structure 101. In the present embodiment, the outer skin is a word representing a surface of the model toy 100 exposed to the outside. For example, the model toy 100 illustrated in FIG. 1A is a dinosaur-shaped toy, and the outer skin indicates a portion that can be visually recognized from the outside, such as the skin, nails, teeth, and eyes of the dinosaur.

In the first appearance, the model toy 100 has the outer skin structure 101 including a plurality of first toy components surrounded by the dotted lines in FIGS. 1A to 1B. The plurality of first toy components constituting the outer skin structure 101 include a head portion 101a, a neck portion 101b, a left arm portion 101c, a right arm portion 101d, a body portion 101e, a left leg portion 101f, a right leg portion 101g, and a tail portion 101h. Each toy component can be configured by combining a plurality of component parts. A support portion 102 supports the tail portion 101h. In the present embodiment, the dinosaur toy will be described as an example of the model toy, but there is no intention to limit the present invention, and the present invention can be applied to various models such as a person, an animal, a robot, an insect, a weapon, and a decoration.

The head portion 101a is connected to the body portion 101e via the neck portion 101b. The left arm portion 101c and the right arm portion 101d are connected to the body portion 101e on the upper sides of the side portions via connecting mechanisms of the left arm portion 101c and the right arm portion 101d, respectively. In addition, the left leg portion 101f and the right leg portion 101g are connected to the body portion 101e on the lower sides of the side portions via connecting mechanisms of the left leg portion 101f and the right leg portion 101g, respectively. Further, the tail portion 101h is connected to the lower side of the body portion 101e via a connecting mechanism. The connecting mechanism for connecting the first toy components may be achieved by, for example, engaging a protrusion portion with a recess portion. In addition, in the present embodiment, since the outer skin structure 101 is not assembled via a component part of a skeleton structure 201 described later, the outer skin structure 101 can be assembled and installed independently of the skeleton structure 201.

Next, an example of a second appearance configuration of the model toy 100 according to the present embodiment will be described with reference to FIGS. 2A to 2B. FIG. 2A illustrates an example of an appearance front face of the skeleton structure 201 constituting a second appearance of the model toy 100, and FIG. 2B illustrates an example of an appearance side face of the skeleton structure 201. In the present embodiment, the skeleton is a word representing a framework existing inside the outer skin of the model toy 100. For example, the model toy 100 illustrated in FIG. 2A is a dinosaur-shaped toy, and the skeleton indicates a framework of each of the portions constituting the main body of the dinosaur.

In the second appearance, the model toy 100 has the skeleton structure 201 including a plurality of second toy components surrounded by the dotted lines in FIGS. 2A to 2B. The plurality of second toy components constituting the skeleton structure 201 correspond to the plurality of first toy components constituting the outer skin structure 101, and are configured to be capable of being housed (or “stored”, the same applies hereinafter) in the corresponding toy components of the outer skin structure 101. The skeleton structure 201 includes a head portion 201a, a neck portion 201b, a left arm portion 201c, a right arm portion 201d, a body portion 201c, a left leg portion 201f, a right leg portion 201g, and a tail portion 201h as the second toy components.

The head portion 201a is connected to the body portion 201e via the neck portion 201b. The left arm portion 201c and the right arm portion 201d are connected to the body portion 201e on the upper sides of the side portions via connecting mechanisms of the left arm portion 201c and the right arm portion 201d, respectively. In addition, the left leg portion 201f and the right leg portion 201g are connected to the body portion 201e on the lower sides of the side portions via connecting mechanisms of the left leg portion 201f and the right leg portion 201g, respectively. Further, the tail portion 201h is connected to the lower side of the body portion 201e via a connecting mechanism. The connecting mechanism for connecting the second toy components may also be achieved by, for example, engaging a protrusion portion with a recess portion.

In a case where the skeleton structure 201 is housed in the outer skin structure 101, the head portion 201a is housed in the head portion 101a, the neck portion 201b is housed in the neck portion 101b, the left arm portion 201c is housed in the left arm portion 101c, the right arm portion 201d is housed in the right arm portion 101d, the body portion 201e is housed in the body portion 101c, the left leg portion 201f is housed in the left leg portion 101f, the right leg portion 201g is housed in the right leg portion 101g, and the tail portion 201h is housed in the tail portion 101h.

In addition, in the present embodiment, since the skeleton structure 201 is not assembled via the component part of the outer skin structure 101, the skeleton structure 201 can be assembled and installed independently of the outer skin structure 101. Accordingly, the model toy 100 can have the second appearance due to the skeleton structure by itself, which is different from the first appearance due to the outer skin structure illustrated in FIGS. 1A to 1B. In addition, the outer skin structure 101 is also configured to be able to be assembled only from parts constituting the outer skin structure 101 without housing the skeleton structure 201 inside, and can be installed by itself without housing the skeleton structure 201. The outer skin structure 101 can have the first appearance regardless of whether it is assembled by itself or houses the skeleton structure 201.

In a case where the skeleton structure 201 is housed in the outer skin structure 101, the presence thereof cannot be confirmed from the outside. However, the presence of the skeleton structure inside can be confirmed by removing some of the model parts constituting the outer skin structure 101. In addition, a tooth portion of the head portion 201a of the skeleton structure 201 is configured to be exposed to the outside from the outer skin structure 101. Therefore, when the head portion 101a is assembled, the head portion 101a may be assembled in a form of housing the head portion 201a. Alternatively, the tooth portion may be incorporated in the head portion 101a of the outer skin structure 101. A similar configuration may be adopted for portions other than the tooth portion. For example, the similar configuration described above may be adopted for the claws, tusks, and other portions in which a part of the skeleton structure is exposed to the outside as a part of the outer skin structure.

FIG. 3 is a view illustrating an example of a state in which the skeleton structure 201 is housed in the outer skin structure 101. As illustrated in FIG. 3, the second toy components (for example, the arm portions 201c and 201d, the body portion 201e, and the like) constituting the skeleton structure 201 are each housed in the corresponding first toy components (for example, the arm portions 101c and 101d, the body portion 101e, and the like) constituting the outer skin structure 101.

Next, configurations of the head portion 101a and the head portion 201a of the outer skin structure 101 and the skeleton structure 201 will be described with reference to FIGS. 4A to 4D.

FIGS. 4A to 4B illustrate an example of an appearance configuration of the head portion 101a of the outer skin structure 101. FIGS. 4C to 4D illustrate an example of an appearance configuration of the head portion 201a of the skeleton structure 201. Although the head portion 101a and the head portion 201a are each illustrated in an integrated state in FIGS. 4A to 4D, each of the head portions may be configured to be assembled by connecting a plurality of component parts. As illustrated in FIGS. 4A to 4D, the head portion 201a of the skeleton structure 201 is housed in the head portion 101a of the outer skin structure 101. The reason for this is that, as described above, the teeth are exposed to the outside from the head portion 101a, and the teeth are common to the head portion 201a of the skeleton structure 201.

The head portions 101a and 201a are connected to the neck portions 101b and 201b. Therefore, the head portions 101a and 201a have a connecting mechanism for connecting to the neck portions 101b and 201b. As illustrated in FIG. 4B, the head portion 101a includes protrusion portions 401a, 401b, and 401c. The head portions 101a and 201a have a housing portion 402a. By using the connecting mechanism, the head portions 101a and 201a can be connected to the neck portions 101b and 201b.

Note that the head portion 101a needs to have a form in which the head portion 201a is housed inside for the structure of “teeth” to constitute the first appearance, but the other first toy components do not need to house the other second toy components than the head portion 201a inside to constitute the first appearance. In addition, by preparing the head portion 101a incorporating the head portion 201a as well as the head portion 201a, it is possible to simultaneously achieve both the first appearance due to the outer skin structure 101 and the second appearance due to the skeleton structure 201.

Next, configurations of the neck portion 101b and the neck portion 201b of the outer skin structure 101 and the skeleton structure 201 will be described with reference to FIGS. 5A to 5C. FIG. 5A illustrates a state in which the neck portion 201b of the skeleton structure 201 is housed in the neck portion 101b of the outer skin structure 101. FIG. 5B illustrates an example of an appearance configuration of the neck portion 101b of the outer skin structure 101. FIG. 5C illustrates an example of an appearance configuration of the neck portion 201b of the skeleton structure 201.

As illustrated in FIG. 5B, the neck portion 101b of the outer skin structure 101 includes housing portions 501a, 501b, and 501c. The housing portion 501a is engaged with the protrusion portion 401a of the head portion 101a, the housing portion 501b is engaged with the protrusion portion 401b of the head portion 101a, and the housing portion 501c is engaged with the protrusion portion 401c of the head portion 101a. The head portion 101a and the neck portion 101b can be connected by engaging the protrusion portions of the head portion 101a with the corresponding housing portions of the neck portion 101b. As illustrated in FIG. 5C, the neck portion 201b of the skeleton structure 201 includes a protrusion portion 502a. The protrusion portion 502a is engaged with the housing portion 402a of the head portion 201a. Accordingly, the head portion 201a and the neck portion 201b can be connected. Here, the connection between the head portion 201a and the neck portion 201b is performed in both a case where the model toy 100 is configured only by the skeleton structure 201 and a case where the model toy 100 is configured in a state where the skeleton structure 201 is housed in the outer skin structure 101.

In this manner, the connecting mechanism for connecting the first toy components of the outer skin structure 101 and the connecting mechanism for connecting the second toy components of the skeleton structure 201 function independently of each other. Therefore, there is no need to interpose the second toy component to connect the first toy components, and there is no need to interpose the first toy component to connect the second toy components. Therefore, the connecting mechanism of the outer skin structure 101 can have a connecting function without being affected by the connecting mechanism of the skeleton structure 201, and the connecting mechanism of the skeleton structure 201 can have a connecting function without being affected by the connecting mechanism of the outer skin structure 101.

Next, configurations of the right arm portion 101d and the right arm portion 201d of the outer skin structure 101 and the skeleton structure 201 will be described with reference to FIGS. 6AA to 6DD. FIG. 6AA illustrates a state in which the right arm portion 201d of the skeleton structure 201 is housed in the right arm portion 101d of the outer skin structure 101. FIG. 6AB illustrates an example of an appearance configuration of the right arm portion 101d of the outer skin structure 101. FIG. 6AC illustrates an example of an appearance configuration of the right arm portion 201d of the skeleton structure 201.

As illustrated in FIG. 6AA, even in a state where the right arm portion 201d is housed in the right arm portion 101d, a part of the right arm portion 201d is exposed to the outside of the right arm portion 101d to ensure the connection between the right arm portion 201d and another second toy component.

As illustrated in FIG. 6AB, the right arm portion 101d of the outer skin structure 101 includes protrusion portions 601a, 601b, and 601c. As illustrated in FIG. 6AC, the right arm portion 201d of the skeleton structure 201 includes a protrusion portion 602a. The protrusion portion 602a includes three protrusions. As can be seen with reference to FIG. 6AA, even in a state where the right arm portion 201d is housed in the right arm portion 101d, the protrusion portions 601a to 601c are not shielded by the right arm portion 201d. Therefore, the right arm portion 101d can be engaged with a not-illustrated housing portion provided in the body portion 101c without being disturbed by the presence of the right arm portion 201d and can be connected to the body portion 101c. In addition, even in a state where the right arm portion 201d is housed in the right arm portion 101d, the protrusion portion 602a is exposed from the right arm portion 101d. Therefore, the right arm portion 201d can be engaged with a not-illustrated housing portion provided in the body portion 201c without being disturbed by the right arm portion 101d and can be connected to the body portion 201c.

In this manner, in a case where the second toy component of the skeleton structure 201 is housed in the first toy component of the outer skin structure 101, an engaging mechanism of the first toy component can have an engaging function without being affected by the second toy component of the skeleton structure 201 and the component part thereof, and an engaging mechanism of the second toy component can have an engaging function without being affected by the first toy component of the outer skin structure 101 and the component part thereof.

Next, an internal structure of the right arm portion 101d for housing the right arm portion 201d of the skeleton structure 201 in the right arm portion 101d of the outer skin structure 101 will be described with reference to FIGS. 6BA to 6BB. FIG. 6BA illustrates a state in which a part (part 604) on one side of the right arm portion 101d of the outer skin structure 101 is removed. FIG. 6BB illustrates a state in which a part (part 603) on the other side of the right arm portion 101d of the outer skin structure 101 is removed.

As illustrated in FIG. 6BA, a plurality of support portions for positioning the right arm portion 201d of the skeleton structure 201 are provided inside the part 603 of the right arm portion 101d. Support portions 601d and 601e are mechanisms for supporting the upper arm portion of the right arm portion 201d. A support portion 601f is a mechanism for supporting the inside of the elbow of the right arm portion 201d. A support portion 601g is a mechanism for supporting the forearm portion of the right arm portion 201d. A support portion 601h is a mechanism for supporting the fingers of the hand of the right arm portion 201d.

As illustrated in FIG. 6BB, a plurality of support portions for positioning the right arm portion 201d of the skeleton structure 201 are provided inside the part 604 of the right arm portion 101d as well. Support portions 601i, 601j, and 601k are mechanisms for supporting the upper arm portion of the right arm portion 201d. Here, the support portions 601i and 601k of the part 604 are configured to be engaged with the support portions 601d and 601e of the part 603. A support portion 601l is a mechanism for supporting the inside of the elbow of the right arm portion 201d. Here, the support portion 601l of the part 604 is configured to be engaged with the support portion 601f of the part 603. A support portion 601m is a mechanism for supporting the forearm portion of the right arm portion 201d. Here, the support portion 601m of the part 604 is configured to be engaged with the support portion 601g of the part 603. A support portion 601n is a mechanism for supporting the fingers of the hand of the right arm portion 201d. Here, the support portion 601n of the part 604 is configured to be engaged with the support portion 601h of the part 603.

In this manner, the support portions 601d to 601h illustrated in FIG. 6BA and the support portions 601i to 601n illustrated in FIG. 6BB are engaged with each other, whereby the part 603 and the part 604 constituting the right arm portion 101d can be connected, and the right arm portion 201d of the skeleton structure 201 can be sandwiched and fixed inside.

Next, a configuration example of the part 603 and the part 604 of the right arm portion 101d of the outer skin structure 101 will be described with reference to FIGS. 6CA to 6CB. FIG. 6CA illustrates an example of a configuration of the part 603 of the right arm portion 101d of the outer skin structure 101. FIG. 6CB illustrates an example of a configuration of the part 604 of the right arm portion 101d of the outer skin structure 101.

As illustrated in FIG. 6CA, the part 603 can be separated into a part 603a and a part 603b. The plurality of support portions 601d to 601g for positioning the right arm portion 201d of the skeleton structure 201 are provided inside the part 603a. The part 603a is provided with a protrusion portion 6010 for ensuring the connection to the part 603b. The support portion 601h serving as a mechanism for supporting the fingers of the hand of the right arm portion 201d is provided inside the part 603b. In addition, the part 603b is provided with a housing portion 601p for being engaged with the protrusion portion 6010 of the part 603a to connect the part 603a to the part 603b.

As illustrated in FIG. 6CB, the part 604 can also be separated into a part 604a and a part 604b. The plurality of support portions 601i to 601m for positioning the right arm portion 201d of the skeleton structure 201 are provided inside the part 604a. The part 604a is provided with a protrusion portion 601q for ensuring the connection to the part 604b. The support portion 601n serving as a mechanism for supporting the fingers of the hand of the right arm portion 201d is provided inside the part 604b. In addition, the part 604b is provided with a housing portion 601r for being engaged with the protrusion portion 601q of the part 604a to connect the part 604a to the part 604b.

In the above configuration, the engagement between the protrusion portion 6010 and the housing portion 601p and the engagement between the protrusion portion 601q and the housing portion 601r are not affected by the presence of the right arm portion 201d. In addition, the structure of the toy component of the outer skin structure 101 has been described above by using the configuration of the right arm portion 101d as an example with reference to FIGS. 6CA to 6CB, but the other toy components of the outer skin structure 101 can be similarly assembled by connecting (combining) a plurality of component parts.

Next, a configuration of the right arm portion 201d of the skeleton structure 201 will be described with reference to FIGS. 6DA to 6DD. FIG. 6DA illustrates an example of an appearance configuration of the right arm portion 201d of the outer skin structure 101 after assembly. The right arm portion 201d can be assembled by connecting parts 605, 606, and 607. FIG. 6 DB illustrates an example of a configuration of the part 605. FIG. 6DC illustrates an example of a configuration of the part 606. FIG. 6DD illustrates an example of a configuration of the part 607.

As illustrated in FIG. 6DB, the part 605 includes recess portions 605a and 605b and a protrusion portion 605c. As illustrated in FIG. 6DC, the part 606 includes protrusion portions 606a and 606b. The part 605 and the part 606 are connected by engagement between the recess portion 605a and the protrusion portion 606a and engagement between the recess portion 605b and the protrusion portion 606b. As illustrated in FIG. 6DD, the part 607 includes a recess portion 607a. The part 605 and the part 607 are connected by engagement between the protrusion portion 605c and the recess portion 607a.

The structure of the toy component of the skeleton structure 201 has been described above by using the configuration of the right arm portion 201d as an example with reference to FIGS. 6DA to 6DD, but the other toy components of the skeleton structure 201 can be similarly assembled by connecting (combining) a plurality of component parts.

In the above manner, the plurality of first toy components constituting the outer skin structure 101 and the plurality of component parts constituting each toy component are configured to ensure connection between the first toy components constituting the outer skin structure 101 and between the component parts thereof so that the outer skin structure 101 can be assembled and installed by itself. In addition, each component part included in the toy component of the outer skin structure 101 has a support portion for supporting the toy component of the skeleton structure 201 inside the component part, and by being supported by the support portion, each toy component of the skeleton structure 201 is positioned and housed inside each toy component of the outer skin structure 101.

In addition, the plurality of second toy components constituting the skeleton structure 201 and the plurality of component parts constituting each toy component are configured to ensure connection between the second toy components constituting the skeleton structure 201 and between the component parts thereof so that the skeleton structure 201 can be assembled and installed by itself.

Accordingly, the model toy 100 can have a form of the outer skin structure 101 itself, the skeleton structure 201 itself, and in which the skeleton structure 201 is housed in the outer skin structure 101.

Note that, in the above-described embodiment, some parts included in the model toy have been described, but the other parts not described in the embodiment can be similarly configured.

The embodiment of the invention is not limited to the above-described embodiment, and various modifications and changes can be made within the scope of the gist of the invention. For example, the shape of the model toy is not limited to a particular one, and includes various shapes such as a person, an animal, a robot, an insect, and a dinosaur.

SUMMARY OF EMBODIMENT

The above-described embodiment discloses at least the following model toy.

(1) A model toy, including

• • a plurality of first toy components constituting the model toy, and
  • a plurality of second toy components constituting the model toy,
  • wherein the plurality of first toy components constitute a first structure having a first appearance of the model toy by being connected without the second toy component interposed therebetween,
  • wherein the plurality of second toy components constitute a second structure having a second appearance, different from the first appearance, of the model toy by being connected without the first toy component interposed therebetween, and
  • wherein the model toy is configured to be capable of housing the second structure in the first structure.

(2) The model toy according to (1), wherein the first structure is configured to be capable of having the first appearance without housing at least a part of the second structure.

(3) The model toy according to (1) or (2), wherein the second structure is configured to be capable of having the second appearance of the model toy independently without being housed in the first structure.

(4) The model toy according to any one of (1) to (3), wherein each of the plurality of first toy components includes a first plurality of component parts, and wherein the first plurality of component parts include a support portion for supporting the second toy component to be housed.

(5) The model toy according to (4), wherein a first component part and a second component part out of the first plurality of component parts are configured to sandwich and support the second toy component to be housed by engaging a first support portion, included in the first component part, that supports the second toy component to be housed with a second support portion, included in the second component part, that supports the second toy component to be housed.

(6) The model toy according to (5), wherein the second toy component to be housed has a portion exposed from the first component part and the second component part at a position not constituting the first appearance in a state of being sandwiched and supported by the first component part and the second component part.

(7) The model toy according to (5) or (6), wherein each of the first plurality of component parts further includes a first engaging mechanism for engaging with a different component part out of the first plurality of component parts.

(8) The model toy according to (7), wherein each of the plurality of second toy components includes a second plurality of component parts, and

• • wherein each of the second plurality of component parts has a second engaging mechanism for engaging with a different component part out of the second plurality of component parts.

(9) The model toy according to (8), wherein, in a case where the second structure is housed in the first structure, the first engaging mechanism has an engaging function without being affected by the second plurality of component parts, and the second engaging mechanism has an engaging function without being affected by the first plurality of component parts.

(10) The model toy according to any one of (1) to (9), wherein the plurality of second toy components include a third component part constituting both the first appearance and the second appearance of the model toy, and wherein the first structure includes the third component part, so that the third component part constitutes a part of the first appearance of the model toy.

(11) The model toy according to (10), wherein the first structure houses the second toy component including the third component part out of the plurality of second toy components, and

• • wherein, in a state where the second toy component including the third component part is housed in the first structure, the second toy component is not connected to the component part of the plurality of first toy components constituting the first structure.

(12) The model toy according to any one of (1) to (11), wherein the first structure forms an outer skin structure of the model toy, and

• • wherein the second structure forms a skeleton structure of the model toy.

The invention is not limited to the above-described embodiment, and various modifications and changes can be made within the scope of the gist of the invention.