Model toy and movable structure
By employing a movable shaft system with multiple rotatable components to form multiple movable axes within a single joint, the model toy achieves enhanced joint mobility and a wider range of motion, addressing the limitations of existing model toys.
Patent Information
- Application Number
- JP2024230927
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-04-16
AI Technical Summary
Existing model toys face limitations in achieving natural human-like movements due to restricted joint mobility and the need for a large number of joints and members, which complicates the realization of a wide range of motions.
The implementation of a novel structure featuring a movable shaft system with multiple rotatable components, allowing for increased joint mobility by forming multiple movable axes within a single joint, such as the elbow joint, thereby expanding the range of motion.
This solution enhances the range of motion in model toys, allowing for more natural and varied movements with fewer joints and members, thereby improving the realism and versatility of the toy's poses and actions.
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Figure 2025063887000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a model toy and a movable structure. [Background technology]
[0002] In order to realize movements and poses similar to those of humans and animals, doll toys (model toys) include various joints and movable parts. These mechanisms allow for various poses. However, providing a doll toy with the same number of joints as a human or other such body part requires a large number of parts, and even in an elaborate doll toy, the number is limited and it is difficult to realize this. Therefore, in order to realize the movements and poses described above, it is important to expand the range of motion of the joints and the parts connected thereto while configuring the doll with fewer joints and parts. By expanding the range of motion, it is possible to perform movements with a higher degree of freedom and a variety of poses. Patent Document 1 proposes a quadruped animal doll having a joint structure that allows realistic movements similar to those of real animals. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2010-17264 A Summary of the Invention [Problem to be solved by the invention]
[0004] To achieve natural movements like those of human limbs, it is desirable to have the ability to rotate in various directions. On the other hand, by providing joints such as the neck joint, shoulder joint, hip joint, and waist joint inside the body like a human, it is possible to achieve natural movements of the parts connected to those joints, but the range of motion is limited by the adjacent parts. Therefore, in order to expand the range of motion, it is important to secure space between adjacent parts.
[0005] The present invention provides a mechanism for realizing a new structure for expanding the range of motion in, for example, a model toy. [Means for solving the problem]
[0006] The present invention is, for example, a model toy comprising a parts group including a plurality of parts, and a movable shaft provided inside the parts group and connecting at least a portion of the plurality of parts, the movable shaft comprising a first movable shaft connected to a first part of the plurality of parts and rotatable, and a second movable shaft connected to a second part of the plurality of parts and rotatable.
[0007] The present invention is also characterized in that, for example, a movable structure includes a part group including a plurality of parts, and a movable shaft provided inside the part group and connecting at least a portion of the plurality of parts, the movable shaft including a first movable shaft connected to a first part of the plurality of parts and rotatable, and a second movable shaft connected to a second part of the plurality of parts and rotatable. Effect of the Invention
[0008] According to the present invention, a novel structure for expanding the range of motion can be realized. [Brief description of the drawings]
[0009] [Figure 1] 1A and 1B are diagrams showing an example of a front exterior view and a side exterior view of a model toy according to an embodiment. [Diagram 2] 1A is a diagram showing a side view of an external appearance of a model toy according to one embodiment, and FIG. 1B is an exploded perspective view of an arm portion. [Diagram 3] 1 is a diagram showing a configuration of an elbow joint of a model toy according to an embodiment; [Figure 4] 11A to 11C are diagrams illustrating the operation of an elbow joint of a model toy according to an embodiment. [Diagram 5] 1A and 1B are diagrams showing an elbow joint, a portion of an arm, and a connection of the elbow joint to the arm of a model toy according to one embodiment; [Figure 6]FIG. 2 is a side cross-sectional view of an arm of the model toy according to one embodiment. [Figure 7] 11A to 11C are diagrams illustrating an example of the operation of an arm of the model toy according to one embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0010] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the invention according to the claims, and not all combinations of features described in the embodiments are essential to the invention. Two or more features among the multiple features described in the embodiments may be arbitrarily combined. In addition, the same reference numbers are used for the same or similar configurations, and duplicated descriptions are omitted.
[0011] <Appearance of the model toy> A first embodiment of the present invention will be described below. First, an example of the external configuration of a model toy 100 according to this embodiment will be described with reference to Fig. 1. Fig. 1(a) shows the external front view of the model toy 100. Fig. 1(b) shows the external side view of the model toy 100. Note that the up / down, left / right, and front / rear arrows indicate the orientation of the model toy in the figure, and this also applies to other figures.
[0012] The model toy (doll body) 100 includes a head 101, an upper body 102, arms 103a, 103b, and legs 104a, 104b. The model toy 100 is a movable model toy such as a movable figure, and each part can be moved within a limited range caused by its relationship with other members. The head 101, which is a first part, is connected to the upper body 102, which is a second part, by a spherical connecting member (hereinafter, also referred to as a ball joint). The upper body 102 is further connected to arms 103 including a right arm 103a and a left arm 103b by a spherical connecting member. The legs including a right leg 104a and a left leg 104b are connected to the lower part of the upper body 102.
[0013] In the following, a structure of an arm joint including an elbow joint and a wrist joint of an arm will be described as a movable structure (movable structural body) according to this embodiment. However, there is no intention to limit the present invention, and the movable structure described below can be applied not only to an arm joint but also to other joints, for example, leg joints including a knee joint and an ankle joint, a neck joint, a waist joint, and other joints.
[0014] <Arm configuration> Next, the detailed configuration of the arm 103a including the arm joint of the model toy 100 according to this embodiment will be described with reference to Fig. 2. Fig. 2(a) shows a side view of the model toy 100. Fig. 2(b) shows an exploded perspective view of a group of parts including a plurality of parts that make up the arm 103a. Fig. 2(a) is the same as Fig. 1(b), so its explanation will be omitted. The configuration of the arm 103b is the same as that of the arm 103a, so its explanation will be omitted.
[0015] 2(b), the arm 103a is made up of parts 201 to 213, and is rotatably connected to the upper body 102. The parts 201 to 203 form a movable axis that serves as the base of the elbow joint. The part 204 forms a shoulder joint, and the parts 205 and 206 form a wrist joint.
[0016] Parts 201a and 201b are assembled so as to cover parts 201 and 204 from the outside. Part 204 is rotatably connected to parts 201a and 201b. Part 211 has a hollow portion inside, into which parts 201-202 constituting the elbow joint are inserted. Part 212 has a hollow portion inside, into which an insert portion formed at the bottom of part 202 is inserted. The insert portion is further inserted into part 203 forming a part of the movable shaft inside part 212. Furthermore, part 213 is connected to part 212 from the bottom side in the figure. Part 203 has a cylindrical recess formed at the bottom, into which a wrist joint formed by combining parts 205 and 206 is inserted. Parts 207 and 208 are connected to the neck joint.
[0017] The parts 201 and 202 are rotatably connected to each other, forming a first movable axis of the elbow joint. The part 203 is rotatably connected to the part 212, forming a second movable axis of the elbow joint. In this way, according to this embodiment, the elbow joint, which is one joint, is configured by two movable axes. This allows the range of motion to be expanded. Furthermore, according to this embodiment, in order to expand the range of motion, the parts 211 and 212 connected to the movable axes are connected to be movable in a predetermined direction, for example, in the vertical direction. This allows the parts 211 and 212 to be operated so as to provide a gap between them, and rotated by the first and second movable axes, thereby providing a further expanded range of motion. A detailed configuration will be described later.
[0018] <Detailed structure of the elbow joint> Next, the detailed configuration of the elbow joint (arm joint) of the model toy 100 according to this embodiment will be described with reference to Fig. 3. Fig. 3(a) shows an exploded view of the parts that configure the first movable axis of the elbow joint. Fig. 3(b) and (c) show the assembled configuration of each part.
[0019] 3(a), part 201 includes cylindrical connecting part 301. Part 202 includes ring-shaped connecting part 302 that rotatably receives connecting part 301, and rod-shaped insertion part 303. By connecting connecting parts 301 and 302, the first movable axis of the elbow joint can be formed.
[0020] As shown in Fig. 3(b), part 203 has a cylindrical recess 304 and a cylindrical connecting part 305. By inserting insertion part 303 into recess 304, part 203 is connected to parts 201 and 202. Part 203 is rotatably connected to part 211 that constitutes a part of arm 103a at connecting part 305. This forms a second movable axis of the elbow joint.
[0021] 3(c) shows a movable shaft that connects parts 201 to 203. In this movable shaft, connecting parts 301 and 305 function as a first movable shaft and a second movable shaft, respectively. Each movable shaft can rotate in the front-rear direction of the model toy 100.
[0022] <Movement of movable axis> Next, the operation of the movable shaft (elbow joint) according to this embodiment will be described with reference to Fig. 4. Fig. 4(a) shows the movable shaft before operation, Fig. 4(b) shows the state in which the first movable shaft is operated, and Fig. 4(c) shows the state in which the second movable shaft is operated. In Fig. 4(a) to (c), parts 211, 212, and 213 that are assembled to cover the movable shafts are indicated by dotted lines.
[0023] Fig. 4(b) shows a state where the first movable axis is rotated from the movable axis before operation shown in Fig. 4(a). The first rotation axis is performed by rotating part 201 toward the front of the model toy 100 relative to part 202. As shown in Fig. 2(b), part 201 is covered with parts 210a and 210b, and part 204 that functions as a shoulder joint is connected to the end of the parts 210a and 210b. Therefore, the arm 103a can be bent by rotating about the first movable axis.
[0024] Fig. 4(c) shows a state in which the second movable shaft is rotated from the state of the movable shaft shown in Fig. 4(b). The second movable shaft rotates by rotating the connecting part 305 of the part 203 rotatably connected to the part 212. Therefore, the parts 201 and 202 connected to the part 203 also rotate accordingly. Therefore, the arm 103a can be further bent by the rotation about the second movable shaft.
[0025] <Arm movement configuration> The movable configuration of the arm 103a according to this embodiment will be described below with reference to Figures 5 and 6. Figure 5(a) shows a rear view of the movable shaft, Figure 5(b) shows a bottom view of the part 212, and Figure 5(c) shows a bottom view showing the movable shaft connected to the part 212. Figures 6(a) and 6(b) show side cross-sectional views of the arm 103a. Note that the configuration of the arm 103b is similar to that of the arm 103a, so a description thereof will be omitted.
[0026] 5(a), the movable shaft of the arm 103a according to this embodiment is formed with cylindrical coupling parts 501, 502 protruding to the left and right on the first and second movable shafts, and coupling parts 505, 506. The coupling parts 501, 502 are coupled to the part 212, and the coupling parts 505, 506 are coupled to the part 211. The following describes the assembly configuration of the coupling parts 501, 502 to the part 212.
[0027] As shown in FIG. 5(b), cutouts 503 and 504 for receiving connecting portions 501 and 502 are formed inside part 212. Cutouts 503 and 504 are formed to have lengths indicated by the arrows. That is, connecting portions 501 and 502 are connected so as to be movable in the up and down direction within the range indicated by the arrows. Note that the assembly configuration of connecting portions 505 and 506 to part 211 is similar, and therefore description thereof will be omitted. Cutouts 503 and 504 formed in part 212 correspond to the second cutout, and a cutout (not shown) formed in part 211 corresponds to the first cutout.
[0028] 5(c) shows a state in which parts 211 and 212 are assembled to the movable shaft. As shown in the figure, connecting parts 501 and 502 are assembled to cutout parts 503 and 504, respectively, but it can be seen that cutout parts 503 and 504 have extra space. In other words, connecting parts 501 and 502 are not fitted to the innermost parts of cutout parts 503 and 504, and there is space up to the innermost parts. Therefore, by utilizing this space, parts 211 and 212 can move up and down relative to the movable shaft.
[0029] Fig. 6(a) shows a first state in which parts 211 and 212 are in contact with each other. Meanwhile, Fig. 6(b) shows a state in which parts 211 and 212 are moved in the directions of the arrows to transition to a second state in which parts 211 and 211 are separated from each other. In the second state, gaps are provided between parts 210 and 211 and between parts 211 and 212, which has the effect of expanding the range of motion of the first movable axis and the second movable axis.
[0030] In addition, the arm 103a according to this embodiment has a wrist joint formed by a third movable shaft, in addition to an elbow joint having a first movable shaft and a second movable shaft. The wrist joint is formed by connecting parts 205 and 206. Specifically, the wrist joint is formed by rotatably inserting a rod-shaped insertion part of part 206 into a cylindrical recess of part 205. The insertion part serves as a rotation axis, and is formed to be a substantially horizontal rotation axis in the front-rear direction of the model toy 100. This allows the range of motion to be expanded compared to a case in which the insertion part is inserted obliquely at a predetermined angle rather than horizontally.
[0031] <Example of operation> An example of the movement of the arm 103a according to this embodiment will be described with reference to Fig. 7. In Fig. 7, the arm 103a is shown shaded.
[0032] As shown in Fig. 7, in the model toy 100, the arm 103a can be bent largely by moving the first and second movable shafts. Furthermore, the hand can be bent by the third movable shaft at the wrist joint. Therefore, as shown in the figure, the model toy 100 can perform a motion like "resting one's chin on one's hand."
[0033] As described above, the model toy according to this embodiment includes a part group including a plurality of parts, and a movable shaft provided inside the part group and connecting at least a part of the plurality of parts. The movable shaft includes a first movable shaft connected to a first part of the plurality of parts, and a second movable shaft connected to a second part of the plurality of parts. In this way, according to this embodiment, it is possible to provide a mechanism for realizing a new structure for expanding the range of motion in the model toy.
[0034] <Modification> The present invention is not limited to the above-mentioned embodiment, and various modifications and changes are possible within the scope of the gist of the invention. In the above-mentioned embodiment, the movable structure is applied to an arm joint including an elbow joint, but the present invention is not limited to this and may be used in other parts. For example, it may be used in a leg joint including a knee joint, a shoulder joint, a waist joint, or other joints.
[0035] Although an example of a model toy has been described, the shape of the model toy (doll body) is not particularly limited and includes various shapes such as humans, animals, robots, insects, dinosaurs, imaginary life forms, etc. Also, the shape of the model toy is not particularly limited as long as it includes a movable part.
[0036] <Summary of the embodiment> The above embodiments disclose at least the following model toy and movable structure. (1) A model toy, A part group including a plurality of parts; a movable shaft provided inside the group of parts and connecting at least some of the parts; Equipped with The movable shaft is a first movable shaft connected to a first part of the plurality of parts and capable of rotating; a second movable shaft connected to a second part of the plurality of parts and rotatable; A model toy comprising: (2) the first movable shaft is connected to a first cutout portion provided in the first part so as to be movable in a predetermined direction; The model toy described in (1) is characterized in that the second movable axis is connected to a second cutout portion provided in the second part so as to be movable in the specified direction. (3) The model toy described in (2) is characterized in that, by moving in the predetermined direction, the first movable axis and the second movable axis transition from a first state in which the first part and the second part are in contact with each other to a second state in which the first part and the second part are separated from each other. (4) The model toy described in (3) is characterized in that the range of motion of the first movable axis and the range of motion of the second movable axis are expanded in the second state compared to the first state. (5) The model toy described in any one of (1) to (4), characterized in that the first movable axis includes two parts, and the two parts are rotatably connected to each other. (6) The model toy described in any one of (1) to (5), characterized in that the second movable axis includes a connecting portion that is rotatably connected to the second part. (7) the group of parts forms an arm of the model toy, The model toy described in any one of (1) to (6), wherein the first movable axis and the second movable axis form an elbow joint. (8) The model toy described in (7) is characterized in that the movable axis further includes a third movable axis that forms a wrist joint. (9) the third movable shaft includes a third part having a cylindrical recess and a fourth part having a rod-shaped insertion portion, The model toy described in (8), wherein the third part and the fourth part are rotatably connected by inserting the insertion portion into the recess. (10) The model toy described in (9) is characterized in that the insertion part serves as a horizontal rotation axis at the wrist joint. (11) the group of parts forms a leg portion of the model toy, The model toy described in any one of (1) to (6), wherein the first movable axis and the second movable axis form a knee joint. (12) A movable structure, A part group including a plurality of parts; a movable shaft provided inside the group of parts and connecting at least some of the parts; Equipped with The movable shaft is a first movable shaft connected to a first part of the plurality of parts and capable of rotating; a second movable shaft connected to a second part of the plurality of parts and rotatable; A movable structure comprising: [Explanation of symbols]
[0037] 100: Model toy, 101: Head, 102: Upper body, 103a, 103b: Arms, 104a, 104b: Legs
Claims
1. A model toy, A part group including a plurality of parts; a movable shaft provided inside the group of parts and connecting at least some of the parts; Equipped with The movable shaft is a first movable shaft connected to a first part among the plurality of parts and capable of rotating; a second movable shaft connected to a second part of the plurality of parts and rotatable; A model toy comprising:
2. the first movable shaft is connected to a first cutout portion provided in the first part so as to be movable in a predetermined direction; The model toy according to claim 1 , wherein the second movable shaft is connected to a second cutout portion provided in the second part so as to be movable in the predetermined direction.
3. 3. The model toy according to claim 2, characterized in that, by moving in the predetermined direction, the first movable shaft and the second movable shaft transition from a first state in which the first part and the second part are in contact with each other to a second state in which the first part and the second part are separated from each other.
4. 4. The model toy according to claim 3, wherein a movable range of the first movable shaft and a movable range of the second movable shaft are expanded in the second state compared to the first state.
5. The model toy according to claim 1 , wherein the first movable shaft includes two parts, and the two parts are rotatably connected to each other.
6. The model toy according to claim 5 , wherein the second movable shaft includes a connecting portion that is rotatably connected to the second part.
7. the group of parts forms an arm of the model toy, 7. The model toy according to claim 1, wherein the first movable shaft and the second movable shaft form an elbow joint.
8. 8. The model toy according to claim 7, wherein the movable shaft further comprises a third movable shaft forming a wrist joint.
9. the third movable shaft includes a third part having a cylindrical recess and a fourth part having a rod-shaped insertion portion, The model toy according to claim 8 , wherein the third part and the fourth part are rotatably connected to each other by inserting the insertion part into the recess.
10. 10. The model toy according to claim 9, wherein the insertion portion serves as a horizontal rotation axis at the wrist joint.
11. the group of parts forms a leg portion of the model toy, 7. The model toy according to claim 1, wherein the first movable shaft and the second movable shaft form a knee joint.
12. A movable structure, A part group including a plurality of parts; a movable shaft provided inside the group of parts and connecting at least some of the parts; Equipped with The movable shaft is a first movable shaft connected to a first part among the plurality of parts and capable of rotating; a second movable shaft connected to a second part of the plurality of parts and rotatable; A movable structure comprising:
Citation Information
Patent Citations
Four-legged animal doll
JP2010017264A
Cited By
Model parts and model toys
JP7917682B1