Joint model

Abstract

It provides a mechanism to improve the mobility of joint models. [Solution] The joint model comprises: a first part having a first opening and a first cavity connected to the first opening; a second part having a rotation axis and a partial cylindrical part formed as at least a part of the outer circumference and centered on the rotation axis, the second part having a first connecting part formed in the partial cylindrical part for connecting to a first external part; and a third part having a second opening, a third opening, and a second cavity connecting the second opening and the third opening, housing the second part so that it can slide within the first cavity and rotate within the second cavity about the rotation axis, and exposing the second part through the first and second openings while housed in the first part.

Description

Technical Field

[0001] The present invention relates to a joint model.

Background Art

[0002] As the background art in this technical field, for example, there is Japanese Patent Application Publication No. 2018-523529 (Patent Document 1). This publication states that "The animated doll includes a body core, a head configured to be frictionally fitted and engaged with the body core to form a head joint therebetween, a pair of legs configured to be frictionally fitted and engaged with the body core to form a pair of leg joints therebetween, and a pair of legs configured to be frictionally fitted and engaged with the body core to form a pair of leg joints therebetween. Each joint includes a pair of joint connecting surfaces. The pair of joint connecting surfaces are frictionally fitted and engaged by applying tension in advance to the joint surface so as to have a friction coefficient greater than the weight of the animated doll, support the weight of the animated doll independently, and at the same time enable one or more independent posing of the head, a pair of arms and / or a pair of hand feet with respect to the body core for stop-motion animation." (See the abstract).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above Patent Document 1, a mechanism that enables highly articulable, independent, and precise posing is described. However, in Patent Document 1, no consideration has been given to a mechanism for improving the mobility of the joint model. Therefore, the present invention provides a mechanism for improving the mobility of the joint model.

Means for Solving the Problems

[0005] To solve the above problems, for example, the configuration described in the claims may be adopted. [Effects of the Invention]

[0006] According to the present invention, a mechanism that improves mobility can be provided. Other issues, configurations, and effects not mentioned above will be clarified by the following description of the embodiments. [Brief explanation of the drawing]

[0007] [Figure 1] Figure 1 shows an example of a toy 100 having a joint model 200. [Figure 2] Figure 2 is an example of an explanatory diagram illustrating the first embodiment of the joint model 200. [Figure 3] Figure 3 is an example of an explanatory diagram illustrating a movable unit 300 according to the first embodiment. [Figure 4] Figure 4 is an example of an explanatory diagram illustrating the first component 210 according to the first embodiment. [Figure 5] Figure 5 is an example of another explanatory diagram illustrating the first component 210 according to the first embodiment. [Figure 6] Figure 6 is an example of a first explanatory diagram illustrating the movable mechanism of the first embodiment of the joint model 200. [Figure 7] Figure 7 is an example of a second explanatory diagram illustrating the movable mechanism of the first embodiment of the joint model 200. [Figure 8] Figure 8 shows an example of a six-view drawing of the first embodiment of the joint model 200. [Figure 9] Figure 9 is an example of a six-view drawing of a movable unit 300 according to the first embodiment. [Figure 10] Figure 10 is an example of a six-view drawing of the second part 220 according to the first embodiment. [Figure 11] Figure 11 is an example of a six-view drawing of the third component 230 according to the first embodiment. [Figure 12]FIG. 12 is an example of an explanatory diagram for explaining a second embodiment of the joint model 200. [Figure 13] FIG. 13 is an example of an explanatory diagram for explaining the relationship between the first component 210 and the fourth component 240 according to the second embodiment. [Figure 14] FIG. 14 is an example of another explanatory diagram for explaining the relationship between the first component 210 and the fourth component 240 according to the second embodiment. [Figure 15] FIG. 15 is an example of a six-sided view of the third component 230 according to the second embodiment. [Figure 16] FIG. 16 is an example of a six-sided view of the fourth component 240 according to the second embodiment. [Figure 17] FIG. 17 is an example of an explanatory diagram for explaining a first modification of the second embodiment of the joint model 200. [Figure 18] FIG. 18 is an example of an explanatory diagram for explaining a first embodiment of the first alternative joint model 1800. [Figure 19] FIG. 19 is an example of an explanatory diagram for explaining the relationship between the seventh component 1810 and the eleventh component 1870. [Figure 20] FIG. 20 is an example of an explanatory diagram for explaining the movable mechanism of the movable unit 1860. [Figure 21] FIG. 21 is an example of an explanatory diagram for explaining the movable range of the movable unit 1860. [Figure 22] FIG. 22 is an example of another explanatory diagram for explaining the movable range of the movable unit 1860. [Figure 23] FIG. 23 is an example of a six-sided view of the first embodiment of the first alternative joint model 1800. [Figure 24] FIG. 24 is an example of an explanatory diagram for explaining a second embodiment of the first alternative joint model 1800. [Figure 25] FIG. 25 is an example of another explanatory diagram for explaining the relationship between the seventh component 1810 and the eleventh component 1870 according to the second embodiment of the first alternative joint model 1800. [Figure 26] FIG. 26 is an example of an explanatory diagram for explaining an embodiment of the second alternative joint model 2600. [Figure 27]FIG. 27 is an example of an explanatory diagram for explaining the 12th component 2610. [Figure 28] FIG. 28 is an example of a six-sided view of the 13th component 2620. [Figure 29] FIG. 29 is an example of an explanatory diagram for explaining the rotation mechanism of the 2nd alternative joint model 2600. [Figure 30] FIG. 30 is an example of an explanatory diagram for explaining the first modification of the first embodiment of the joint model 200. [Figure 31] FIG. 31 is an example of an explanatory diagram for explaining the 1st component 210 according to the first modification of the first embodiment. [Figure 32] FIG. 32 is an example of a six-sided view of a modification of the first embodiment of the 3rd component 230. [Figure 33] FIG. 33 is an example of a first explanatory diagram for explaining the movable mechanism of the first modification of the first embodiment of the joint model 200. [Figure 34] FIG. 34 is an example of a second explanatory diagram for explaining the movable mechanism of the first modification of the first embodiment of the joint model 200. [Figure 35] FIG. 35 is an example of an explanatory diagram for explaining a modification of the second embodiment of the joint model 200. [Figure 36] FIG. 36 is an example of another explanatory diagram for explaining a modification of the second embodiment of the joint model 200. [Figure 37] FIG. 37 is an example of a first explanatory diagram for explaining the movable mechanism of a modification of the second embodiment of the joint model 200. [Figure 38] FIG. 38 is an example of a second explanatory diagram for explaining the movable mechanism of a modification of the second embodiment of the joint model 200. [Figure 39] FIG. 39 is an example of a third explanatory diagram for explaining the movable mechanism of a modification of the second embodiment of the joint model 200. [Figure 40] FIG. 40 is an example of an explanatory diagram for explaining the second modification of the first embodiment of the joint model 200. [Figure 41] FIG. 41 is an example of an explanatory diagram for explaining an embodiment of the 3rd alternative joint model 4100. [Figure 42]Figure 42 is an example of an explanatory diagram illustrating an embodiment of the fourth alternative joint model 4200. [Modes for carrying out the invention]

[0008] Examples are described below with reference to the drawings. Although several embodiments will be described below, the features described for one embodiment and the features illustrated in the drawings for one embodiment can be adopted in other embodiments as long as no technical discrepancies arise. Furthermore, features described for one embodiment, or features illustrated in the drawings for one embodiment, can be simply removed from that embodiment, provided that no technical inconsistencies arise.

[0009] Figure 1 shows an example of a toy 100 having a joint model 130 (200). Figure 1 illustrates an example of applying the joint model as a joint structure to toys, particularly plastic models, figure models (sometimes simply called "figures"), dolls, and the like. The joint model can also be applied as a joint structure in, for example, drive machinery such as (industrial) robots, or mannequins for clothing.

[0010] Each component included in the embodiment can be molded from, for example, various synthetic resins. Each component can be molded from thermoplastic resins such as polypropylene (PP), polyethylene (PE), acrylonitrile butadiene styrene (ABS), acrylic (PMMA), and polyamide (PA). Other materials that can be used to construct each component include metal, wood, fiber-reinforced plastic, and composite materials that combine different materials.

[0011] Each component included in the embodiment can be molded using any molding method, but can be manufactured, for example, by injection molding using a mold. In toys that include articulated models, such as plastic model kits and figure models, the product, including each component, is guided into the mold in the following order: sprue, runner, gate, and then the final product. Molds include fixed molds that are used in a fixed position during molding, and movable molds that are moved as needed during molding.

[0012] In the articulated models described below, and in toys that include articulated models, the posture and state of the articulated model are maintained by fixation based on frictional force between at least two parts. The posture and state of the joint model can also be maintained by fitting or fixing, based on the shape between at least two parts, for example, based on a shape in which the two parts click into place.

[0013] In the articulated models described below, and in toys that include articulated models, the posture and state of the articulated model are adjusted and changed by applying a force that exceeds the holding force based on the frictional force between at least two parts, thereby moving it.

[0014] The posture and state of the joint model can be further adjusted and modified by applying a force that exceeds the holding force based on the shape between at least two parts, thereby deforming, for example, elastically deforming and moving the corresponding parts.

[0015] In the following description, a configuration in which the joint model 200 has a first connecting portion and a second connecting portion 213 will be described, but the joint model 200 does not necessarily have to have a second connecting portion 213.

[0016] The joint model 200 can be used to move in the rotational directions RD (first rotational direction RD1, second rotational direction RD2) as described below, depending on the positional relationship when connected to the first external component 110, either by corresponding to rotation in the direction shown in Figure 1(A) or by corresponding to rotation in the direction shown in Figure 1(B). [Examples]

[0017] Example 1-1 Figure 2 is an example of an explanatory diagram illustrating the first embodiment of the joint model 200. Figure 2(A) is a perspective view of the first embodiment of the joint model 200. The joint model 200 includes a first part 210, a second part 220, and a third part 230. The first part 210, the second part 220, and the third part 230 are each manufactured, for example, by integral molding.

[0018] Figure 2(B) is a perspective view of the first part 210 according to the first embodiment. The first component 210 includes a first opening 211, a first cavity 212, a second connecting portion 213, and a guide slit 260. The first opening 211 is an opening defined by a dashed edge. The first cavity 212 is a cavity that connects to the first opening 211 and continues into the interior of the first component 210.

[0019] The first part 210 houses the third part 230 within the first cavity 212 so that the third part 230 can slide within the first cavity. The third component 230, housed within the first cavity 212, is slidable between a first position and a second position within the first cavity 212. Furthermore, the third component 230 may also house the second component 220 in a slidable manner within the second cavity 232.

[0020] In the joint model 200, the first connection part 223 can perform a combination of two movements: rotational movement based on a rotational movement mechanism and sliding movement based on a sliding movement mechanism. Such a joint model 200 can provide the user with complex mobility.

[0021] The first slide position is the position where the third part 230 moves furthest towards the first opening 211 (outside the joint model 200) in the direction from the third opening 233 to the second opening 231 (first slide direction) within the first cavity 212. The second slide position is the position where the third part 230 moves furthest from the first opening 211 (towards the inside of the joint model 200) in the direction from the second opening 231 to the third opening 233 (second slide direction) within the first cavity 212.

[0022] In the joint model 200, the sliding direction of the third part 230 within the first part 210 coincides with the sliding direction of the second part 220 within the first part 210.

[0023] Figure 2(C) shows a movable unit 300 composed of a combination of a second part 220 and a third part 230 according to the first embodiment. A movable unit 300 according to the first embodiment will be described in detail with reference to Figure 3.

[0024] Figure 2(D) is a perspective view of the second part 220 according to the first embodiment. The second part 220 includes a rotating shaft 221, a partial cylindrical portion 222, and a first connecting portion 223. The partial cylindrical portion 222 is formed as at least a part of the outer circumference of the second component 220 and is a partial cylindrical portion centered on the axis of rotation. The first connecting portion 223 is formed by connecting to the partial cylindrical portion and is a connecting portion for connecting to the first external component, as explained using Figure 1.

[0025] The above-described configuration of the first connection part and the configuration of the second connection part, etc., described later are examples of configurations for connecting to the first external part 110 and the second external part 120. These configurations can be arbitrarily designed, for example, as a ball joint type (ball part and ball receiving part that houses the ball part), a concave / concave type (cylindrical part and cylindrical part that houses the cylindrical part), a slide type (slider part and slit part that houses the slider part), etc.

[0026] The first connecting portion 223 has a first connecting recess 223a and a first connecting protrusion 223b. The first connecting recess 223a is formed as a cylindrical hole. The cylindrical connector of the first external component is inserted into the first connecting recess 223a.

[0027] The first connecting projection 223b can be inserted into the recess provided in the connection portion of the first external component. The first connecting projection 223b can support and hold the cylindrical connecting portion of the first external component inserted into the first connecting recess 223a.

[0028] The first connecting portion 223 has a first connecting projection 223b, which increases the contact area between the first connecting portion 223 and the first external component. This increases the frictional force between the first connecting portion 223 and the first external component, making the connection between them more stable.

[0029] With the first external component connected to the first connecting portion 223, the rotation of the second component 220 within the second cavity portion 232 is as follows: Contact between the edge of the second opening 231 of the third component 230 and the first connecting portion 223 or the first external component, Contact between the edge of the first opening 211 of the first part 210 and the first connecting part 223 or the first external part, It is limited based on at least one of the following.

[0030] The first connecting projection 223b restricts the rotation of the second component 220 in the first rotational direction described later, based on contact with the edge of the first opening 211 of the first component 210 or the edge of the second opening 231 of the third component 230.

[0031] When the joint model 200 is connected to the first external part, the first external part restricts the rotation of the second part 220 in a second rotation direction opposite to the first rotation direction, based on contact between the first external part and the edge of the first opening 211 of the first part 210 or the edge of the third opening 233 of the third part 230.

[0032] Figure 2(E) is a perspective view of the third component 230 according to the first embodiment. The third component 230 includes a second opening 231, a second cavity 232, and a third opening 233 (Figure 3). The second cavity 232 connects the second opening 231 and the third opening 233.

[0033] In the joint model 200, the third part 230 houses the second part 220 so that the second part 220 can slide within the first cavity 212. The third component 230 houses the second component 220 so that it can rotate within the second cavity 232 around the rotation axis 221.

[0034] In the joint model 200, the third part 230 is housed in the first part 210, and the second part 220, which is housed in the second cavity 232 of the third part 230, is exposed to the outside through the first opening 211 and the second opening 231.

[0035] Figure 3 is an example of an explanatory diagram illustrating a movable unit 300 according to the first embodiment. Figures 3(A) and 3(B) are perspective views of the movable unit 300 according to the first embodiment, viewed from different directions. Figures 3(C) and 3(D) are perspective views of the third component 230 according to the first embodiment, viewed from different directions.

[0036] Figures 3(E) and 3(F) are perspective views of the second part 220 according to the first embodiment, viewed from different directions. Figure 3(G) is a cross-sectional view of the movable unit 300 according to the first embodiment. Figure 3(H) is a cross-sectional view of the third component 230 according to the first embodiment.

[0037] The second part 220 is housed in the second cavity 232 through the third opening 233. The third component 230 has a guide projection 234 on at least one side.

[0038] The second part 220 has a maximum height 220H that corresponds to the diameter of the partial cylindrical portion 222 of the second part 220. The third part 230 has a second cavity height 232H that corresponds to the maximum height 220H of the second part 220.

[0039] The third component 230 has a first outer surface 235a (see Figure 2(E)) and a second outer surface 235b (see Figures 3(C) and 3(D)). The first outer surface 235a and the second outer surface 235b are formed parallel to each other, at least in part.

[0040] The third component 230 has an inner wall protrusion 236 on the inner wall portion that forms the second cavity 232. The inner wall protrusion 236 acts as a resistance to the movement of the second part 220 within the third part 230 toward the third opening 233, thereby preventing the second part 220 from moving toward the third opening 233.

[0041] Furthermore, the second part 220 and the third part 230 are elastically deformable, and if a force exceeding the resistance of the inner wall protrusion 236 is applied, they can move beyond the inner wall protrusion 236 in the direction of the second opening 231 or the third opening 233. The height of the inner wall protrusion 236 can be appropriately set according to the physical properties of the second part 220 and the third part 230.

[0042] In the joint model 200, the movable unit 300 has a compact configuration that can be housed within the first cavity 212, while simultaneously achieving movement of the first connection part 223 by combining two types of movement: rotational movement based on a rotational movement mechanism around the rotation axis 221 and sliding movement based on a sliding movement mechanism.

[0043] As the second part 220 rotates within the second cavity 232 of the third part 230, the second part 220, in accordance with its rotation, comes into contact with the inner wall portion forming the second cavity 232 of the third part 230 at different circumferential positions on the circular cross-section of the partial cylindrical portion 222 that forms the outermost surface of the second part 220 when viewed in the direction of the rotation axis 221.

[0044] Figure 4 is an example of an explanatory diagram illustrating the first component 210 according to the first embodiment. Figures 4(A) and 4(B) are perspective views of the first part 210 according to the first embodiment, viewed from different directions. Figures 4(C) and 4(D) are perspective views of the first part 210 according to the first embodiment, viewed from yet different directions.

[0045] Figure 4(E) is a partial perspective view showing the location of the cross-section 400. The cross-section 400 shown in Figure 4(E) is a cross-section that passes through the longitudinal central axis of the cylindrical second connecting portion 213 and is parallel to the sliding direction of the second part 220. Figures 4(F) and 4(G) are cross-sectional views of the first part 210 according to the first embodiment, viewed from different directions with reference to the cross-section 400 of Figure 4(E).

[0046] The first part 210 has a guide slit 260 that extends in the sliding direction of the third part 230. A portion of the inner wall portion forming the first cavity 212 of the first component 210 forms the edges of the guide slits: the first guide slit longitudinal edge 260L1, the second guide slit longitudinal edge 260L2, the first guide slit short edge 260S1, and the second guide slit short edge 260S2.

[0047] The guide projection 234 of the third component 230 moves within the guide slit 260 as the third component 230 slides between a first slide position and a second slide position within the first component 210.

[0048] The first component 210 has a stopper projection 214 within the first cavity 212. The stopper projection 214 is a projection that protrudes in the direction from the second slide position toward the first slide position (hereinafter sometimes referred to as the first slide direction).

[0049] The stopper projection 214 has a concave shape contour portion 214a that is concave in the direction from the first slide position to the second slide position (hereinafter sometimes referred to as the second slide direction), corresponding to the curvature of the partial circle in the cross-section of the partial cylindrical portion 222 of the second part 220.

[0050] The first component 210 further has a fourth opening 216 and a third cavity 217. The fourth opening 216 is an opening defined by the edge shown by the dashed line. Note that the fourth opening 216 is not necessarily required. The third cavity 217 is connected to the fourth opening 216. The third cavity 217 is connected to the first cavity 212 via a guide slit 260.

[0051] The second connecting portion 213 for connecting to the second external component extends from the third cavity portion 217 toward the fourth opening 216 and protrudes outward from the fourth opening 216.

[0052] Figure 5 is an example of another explanatory diagram illustrating the first component 210 according to the first embodiment. Figure 5(A) is a front view of the first part 210, viewed parallel to the sliding direction of the second part 220 and the third part 230. Figure 5(B) shows the first part 210 cut by a cutting line 500 that passes through the center of the stopper projection 214 in the short direction and extends parallel to the longitudinal direction of the stopper projection 214.

[0053] Figures 5(C) and 5(E) are perspective views of the first part 210 according to the first embodiment of Figure 5(B), viewed from different directions, along with a cross-section 510 that passes through the cutting line 500 of Figure 5(B) and is parallel to the sliding direction of the second part 220. Figures 5(D) and 5(F) are cross-sectional views of the first part 210 according to the first embodiment, showing the cut surface 510 from different directions.

[0054] The first cavity 212 is defined by the inner wall 218. In Figure 5, reference numeral 218 is used to indicate the inner wall portions of the second part 220 and the third part 230 that are parallel to the sliding direction.

[0055] The first cavity 212 has a wall surface that extends parallel to the longitudinal direction 260LD of the guide slit 260. The third cavity 217 has a wall surface that extends parallel to the short direction 260SD of the guide slit 260. The longitudinal direction 260LD and the short direction 260SD of the guide slit 260 are perpendicular to each other.

[0056] Figure 6 is an example of a first explanatory diagram illustrating the movable mechanism of the first embodiment of the joint model 200. Figure 6(A) is a front view of the movable unit 300, viewed parallel to the sliding direction. Figure 6(B) is a cross-sectional view of the second part 220. Figure 6(C) is a front view of the first part 210 according to the first embodiment, similar to that shown in Figure 5(A).

[0057] Figure 6(D) is a cross-sectional view of the first component 210 according to the first embodiment, similar to that shown in Figure 5(F). Figure 6(E) is a front view of the joint model 200, viewed parallel to the sliding directions of the second part 220 and the third part 230. Figure 6(F) is a cross-sectional view of the first embodiment of the joint model 200, as seen at the cross-section 510 shown in Figures 5(C) and 5(E).

[0058] The third component 230 has a third component width of 230W. The width 230W of the third component corresponds to the sum of the outer surface width 235W, which is the width between the outer surfaces 235 of the third component 230, and the height 234H of the guide projection 234 (see Figure 9).

[0059] When the third component 230 is viewed parallel to the sliding direction, the width of the second opening 231W is narrower than the width of the second component 220, so the second component 220 will not fall out of the second opening 231.

[0060] When the third component 230 is viewed parallel to the sliding direction, the height 231H of the second opening corresponds to the height 220H of the second component 220. The maximum height 220H of the second part 220 is represented by the diameter of the cross-sectional circle of the cylindrical portion of the second part 220.

[0061] Furthermore, the height 231H of the second opening is equal to the height of the third opening 233 when the third part 230 is viewed parallel to the sliding direction.

[0062] The width of the first opening 211W when the first part 210 is viewed parallel to the sliding direction corresponds to the width of the outer surface 235W of the third part 230. The width of the first opening, 211W, is smaller than the width of the third component, 230W, by the height of the guide projection, 234.

[0063] Figure 6(F) shows the movable unit 300P2 in the second slide position. In the state shown in Figure 6(F), the movable unit 300 can move in the first sliding direction SD1.

[0064] On the other hand, when the movable unit 300 is in the second slide position, the stopper projection 214 contacts the second part 220, restricting the movable unit 300 from moving any further in the second slide direction SD2.

[0065] The stopper projection 214 has a concave contour portion 214a that corresponds to the curvature of the circle in the cross-section of the partial cylindrical portion 222 of the second part 220. The concave contour portion 214a maintains contact with the second part 220 while the movable unit 300 and the third part 230 are in the second sliding position and the second part 220 is rotating.

[0066] Figure 7 is an example of a second explanatory diagram illustrating the movable mechanism of joint model 200. Figure 7(A) shows the movable unit 300 cut along a cutting line 700 that passes through the short-side center of the third component width 230W (the center of the third component width 230W) and extends parallel to the sliding directions SD1 and SD2.

[0067] Figure 7(B) is a perspective view of the first embodiment of the joint model 200, looking at a cross-section 710 that passes through the cutting line 700 in Figure 7(A) and is parallel to the sliding directions SD1 and SD2. Figure 7(C) is a cross-section 710 of Figure 7(B). Note that Figure 7(C) is the same as Figure 6(F).

[0068] Figures 7(D) to 7(F) show the joint model 200 cut at a different position than shown in Figures 7(A) to 7(C). Figure 7(D) shows the movable unit 300 cut along a cutting line 720 that is in contact with the surface of the guide projection 234 and extends parallel to the sliding directions SD1 and SD2.

[0069] Figure 7(E) is a perspective view of the first embodiment of the joint model 200, looking at a cross-section 730 that passes through the cutting line 720 in Figure 7(D) and is parallel to the sliding directions SD1 and SD2. Figure 7(F) is a cross-section 730 of Figure 7(E).

[0070] The guide projection 234 moves within the guide slit 260 as the movable unit 300 (third part 230) within the first part 210 slides in the sliding direction 300SD between the first slide position and the second slide position, and restricts the sliding movement in the direction of the first slide position based on contact between the guide slit 260 and the short edge 260S1 of the first guide slit 260.

[0071] As a result, as shown in Figures 7(C) and 6(F), when the movable unit 300 moves from the second slide position to the first slide position, it is restricted from sliding beyond the first slide position in the first slide direction SD1, making it easier to prevent the movable unit 300 from falling off the first part 210.

[0072] The longitudinal direction 260LD of the guide slit 260 is parallel to the sliding direction 300SD of the movable unit 300. The short direction 260SD of the guide slit 260 is perpendicular to the sliding direction 300SD of the movable unit 300 and the long direction 260LD of the guide slit 260.

[0073] The third cavity 217 has a second inner wall portion 217w that extends parallel to the short direction 260SD of the guide slit 260. In this configuration, when molding using a fixed mold and a movable mold, for example, the first cavity 212 is formed with the fixed mold, the movable mold is moved along the short direction 260SD of the guide slit 260, and the fixed mold and the movable mold are brought into contact at the position of the guide slit 260, thereby forming the first part 210 having the guide slit 260. Similarly, in such a configuration, when molding is performed using a fixed mold and a movable mold, for example, the first movable mold is moved along the longitudinal direction 260LD of the guide slit 260, and the second movable mold is moved along the short direction 260SD of the guide slit 260, and the first movable mold and the second movable mold are brought into contact at the position of the guide slit 260, thereby forming the first part 210 having the guide slit 260.

[0074] Figure 8 shows an example of a six-view drawing of the first embodiment of the joint model 200. Figure 8(A) is a front view of the first embodiment of the joint model 200. Figure 8(B) is a rear view of the first embodiment of the joint model 200. Figure 8(C) is a left side view of the first embodiment of the joint model 200. Figure 8(D) is a right side view of the first embodiment of the joint model 200. Figure 8(E) is a plan view of the first embodiment of the joint model 200. Figure 8(F) is a bottom view of the first embodiment of the joint model 200.

[0075] The external shape of joint model 200 can be designed arbitrarily. Furthermore, the joint model 200 may have multiple types of first parts 210 with different external shapes. In such a joint model 200, the user can easily change the body shape of a figure model, for example, by replacing the first parts 210 to match the desired external shape.

[0076] Figure 9 is an example of a six-view drawing of a movable unit 300 according to the first embodiment. Figure 9(A) is a front view of the movable unit 300 according to the first embodiment. Figure 9(B) is a rear view of the movable unit 300 according to the first embodiment. Figure 9(C) is a left side view of the movable unit 300 according to the first embodiment. Figure 9(D) is a right side view of the movable unit 300 according to the first embodiment. Figure 9(E) is a plan view of the movable unit 300 according to the first embodiment. Figure 9(F) is a bottom view of the movable unit 300 according to the first embodiment. Figure 9(G) is a magnified view of the area indicated by the dashed line in Figure 9(E).

[0077] The movable unit 300 (third part 230) has a guide projection 234 on its second outer surface 235b. The guide projection 234 rises from the second outer surface 235b after passing through the guide projection transition sections 234a and 234b.

[0078] The rounded shape of the guide projection transition sections 234a and 234b makes it easier to insert the movable unit 300 into the first cavity 212 from the first opening width 211W, even though the width 230H of the third component is larger than the width 211W of the first opening (see Figure 6). Alternatively, the guide projection transition sections 234a and 234b may be configured to have a slope that slopes downward towards the ends instead of a rounded shape.

[0079] Figure 10 is an example of a six-view drawing of the second part 220 according to the first embodiment. Figure 10(A) is a front view of the second part 220 according to the first embodiment. Figure 10(B) is a rear view of the second part 220 according to the first embodiment. Figure 10(C) is a left side view of the second part 220 according to the first embodiment. Figure 10(D) is a right side view of the second part 220 according to the first embodiment. Figure 10(E) is a plan view of the second part 220 according to the first embodiment. Figure 10(F) is a bottom view of the second part 220 according to the first embodiment.

[0080] The second component 220 has a maximum height 220H and a maximum width 220W. With the second part 220 housed within the third part 230, when the third part 230 is viewed from the third opening 233 toward the second opening 231 in the sliding direction of the third part 230 within the first part 210, the maximum width 233W of the third opening (see Figure 11) corresponds to the maximum width 220W of the second part, and the maximum height 233H of the third opening (see Figure 11) corresponds to the maximum height 220H of the second part 220. Figure 11 is an example of a six-view drawing of the third component 230 according to the first embodiment. Figure 11(A) is a front view of the third component 230 according to the first embodiment. Figure 11(B) is a rear view of the third component 230 according to the first embodiment. Figure 11(C) is a left side view of the third component 230 according to the first embodiment. Figure 11(D) is a right side view of the third component 230 according to the first embodiment. Figure 11(E) is a plan view of the third component 230 according to the first embodiment. Figure 11(F) is a bottom view of the third component 230 according to the first embodiment.

[0081] As explained using Figure 10, the third opening 233 of the third component 230 has a maximum width 233W corresponding to the maximum width 220W of the second component, and a maximum height 233H corresponding to the maximum height 220H of the second component 220.

[0082] The contour shape of the second component 220 as viewed from the rear (see Figure 10(B)) corresponds to the shape of the third opening 233 of the third component 230 (see Figure 11(B)). As the second part 220 enters the second cavity 232 through the third opening 233, it moves into the second cavity 232 by a force that exceeds the frictional force between the second part 220 and the third part 230, while making contact with the third opening 233 around its periphery.

[0083] Examples 1-2 Figure 30 is an example of an explanatory diagram illustrating a first modification of the first embodiment of the joint model 200. The explanation of components and functions common to the first embodiment of the joint model 200 described using Figures 2 to 11 may be omitted.

[0084] Figure 30(A) is a perspective view of the first modified example of the first embodiment of the joint model 200. Figure 30(B) is a perspective view of the first part 210 according to the first modification of the first embodiment. Figure 30(C) shows a modified example of the first embodiment of the movable unit 300, which is composed of a combination of the second part 220 and the third part 230. Figure 30(D) is a perspective view of a modified example of the first embodiment of the second part 220. Figure 30(E) is a perspective view of a modified example of the first embodiment of the third component 230.

[0085] In the first modified example of the first embodiment of the joint model 200, the third part 230 houses the second part 220 in the second cavity 232 such that the second part 220 can rotate within the second cavity 232 around the rotation axis 221 and can slide within the second cavity 232.

[0086] Figure 31 is an example of an explanatory diagram illustrating a modified example of the first embodiment of the first component 210. Figure 31(A) is a front view of the first part 210, viewed parallel to the sliding direction of the second part 220 and the third part 230. Figure 31(B) shows a modified example of the first embodiment of the first part 210, which is cut by a cutting line 3100 that passes through the center of the stopper projection 214 in the short direction and extends parallel to the longitudinal direction of the stopper projection 214.

[0087] Figure 31(C) is a perspective view showing a modified example of the first embodiment of the first part 210 in Figure 31(B), along with a cross-section parallel to the sliding direction of the second part 220, passing through the cutting line 3100 in Figure 31(B).

[0088] Figure 31(D) is a cross-sectional view of a modified example of the first embodiment of the first part 210, as seen from the cross-section of Figure 31(C). Figure 31(E) is a perspective view showing a modified example of the first embodiment of the first part 210, along with a cross-section perpendicular to the cutting line 3100 and parallel to the sliding direction. Figure 31(F) is a cross-sectional view of a modified example of the first embodiment of the first part 210, as seen from the cross-section of Figure 31(E). In the modified example of the first embodiment of the first component 210, the three-dimensional shape and cross-sectional shape of the first cavity 212 differ from those of the first cavity 212 shown in Figure 5.

[0089] Figure 32 is an example of a six-view drawing of a modified third component 230 according to the first embodiment. Figure 32(A) is a front view of a modified example of the third component 230 according to the first embodiment. Figure 32(B) is a rear view of a modified example of the third component 230 according to the first embodiment. Figure 32(C) is a left side view of a modified example of the third component 230 according to the first embodiment. Figure 32(D) is a right side view of a modified example of the third component 230 according to the first embodiment. Figure 32(E) is a plan view of a modified example of the third component 230 according to the first embodiment. Figure 32(F) is a bottom view of a modified example of the third part 230 according to the first embodiment.

[0090] In the first modified example of the first embodiment of the joint model 200, the end face 3200 of the third part 230 is continuously connected to the first opening 211 of the first part 210. Furthermore, the end face 3200 of the third component 230 and the outer surface of the first component 210 that connects to the first opening 211 are connected to each other, forming a continuous surface. As a result, the structure of the movable unit of the joint model 200 becomes less conspicuous around the first opening 211, providing the user with an external structure that better reflects the design.

[0091] Figure 33 is an example of a second explanatory diagram illustrating the movable mechanism of a first modified example of the first embodiment of the joint model 200. Figure 33(A) is a rear view of a modified example of the third component 230 according to the first embodiment, similar to Figure 32(B). Figure 33(B) is a rear view of the second part according to a modified example of the first embodiment. Figure 33(C) is a rear view of a movable unit 300 according to a modified example of the first embodiment. Figure 33(D) is a front view of a movable unit 300 according to a modified example of the first embodiment. Figure 33(E) is a right-side cross-sectional view of a movable unit 300 according to a modified example of the first embodiment. Figure 33(F) is a right-side cross-sectional view of the first modified example of the first embodiment of the joint model 200.

[0092] In the first modified example of the first embodiment of the joint model 200, the maximum height 223H of the third opening of the third part 230 corresponds to the maximum height 220H of the second part 220. In the first modified example of the first embodiment of the joint model 200, the maximum width 223W of the third opening of the third part 230 corresponds to the maximum width 220W of the second part of the second part 220.

[0093] In the first modification of the first embodiment of the joint model 200, the maximum height of the movable unit, 300 Hm, is greater than the insertion height of the movable unit, 300 Hin. The movable unit insertion height of 300 Hin corresponds to the first component housing height of 210 Hin.

[0094] In the state shown in Figure 33(F), the second part 220 can slide in the first sliding direction SD1 by a sliding range of 3300SR1. In the state shown in Figure 33(F), the second part 220 can slide in the second sliding direction SD2 by a sliding range of 3300SR2.

[0095] Figure 34 is an example of a second explanatory diagram illustrating the movable mechanism of a first modified example of the first embodiment of the joint model 200. Figure 34(A) is an example of an explanatory diagram illustrating the state in which the second part 220 has moved to the lower limit of rotational movement in the first rotational direction at the first slide position. Figure 34(B) is an example of an explanatory diagram illustrating the state in which the second part 220 has moved to the upper limit of rotational movement in the second rotation direction at the first slide position.

[0096] Figure 34(C) is an example of an explanatory diagram illustrating the state in which the second part 220 has moved to the lower limit of rotational movement in the first rotational direction at the second slide position. Figure 34(D) is an example of an explanatory diagram illustrating the state in which the second part 220 has moved to the upper limit of rotational movement in the second rotation direction at the second slide position.

[0097] In Figures 34(A) and 34(B), the second part 220 has moved from the state shown in Figure 33(F) in the first sliding direction by the length of the sliding range 3300SR1 in the first sliding direction.

[0098] In Figures 34(C) and 34(D), the second part 220 has moved from the state shown in Figure 33(F) in the second sliding direction by the length of the sliding range 3300SR2 in the second sliding direction.

[0099] In Figures 34(A) to 34(D), the second part 220 is shown with dashed lines in the state after sliding and rotating from the state shown in Figure 33(F). In Figures 34(A) to 34(D), the center line 220LCL passing through the longitudinal center circle of the cylindrical hole in the first connecting recess 223a of the first connecting portion 223 of the second part 220 is shown by a dashed line, as shown in Figure 33(F). In Figures 34(A) to 34(D), the center line 220LCL passing through the longitudinal center circle of the cylindrical hole in the first connecting recess 223a of the first connecting portion 223 of the second part 220, after sliding and rotating from the state shown in Figure 33(F), is shown as a solid line.

[0100] In Figure 34(A), the second part 220 rotates in the first rotational direction until the first connecting projection 223b of the first connecting part 223 and the lower rotation limit surface 3120 of the third part 230, which forms part of the edge of the second opening 231, come into contact.

[0101] In Figure 34(B), the second component 220 rotates in the second rotational direction until it comes into contact with the first external component (not shown) inserted into the first connecting recess 223a of the first connecting portion 223 and the rotational upper limit surface 3110 of the third component 230, which forms part of the edge of the second opening 231.

[0102] In Figure 34(C), the second part 220 rotates in the first rotational direction until the first connecting projection 223b of the first connecting part 223 and the lower rotation limit surface 3120 of the third part 230, which forms part of the edge of the second opening 231, come into contact.

[0103] In Figure 34(B), the second component 220 rotates in the second rotational direction until it comes into contact with the first external component (not shown) inserted into the first connecting recess 223a of the first connecting portion 223 and the rotational upper limit surface 3110 of the third component 230, which forms part of the edge of the second opening 231.

[0104] The rotation range 3400RR1 at the first slide position shown in Figures 34(A) and 34(B) is the possible rotation range of the second part 220 at the first slide position. The rotation range 3400RR2 at the second slide position shown in Figures 34(C) and 34(D) is the possible rotation range of the second part 220 at the second slide position. The rotation range 3400RR1 in the first slide position is greater than the rotation range 3400RR2 in the second slide position.

[0105] . Example 1-3 *Offset type Figure 40 is an example of an explanatory diagram illustrating a second modification of the first embodiment of the joint model 200. Figure 40(A) is a perspective view of a second modified example of the first embodiment of the joint model 200. Figure 40(B) is a perspective view of the second part 220 according to a second modification of the first embodiment. Figure 40(C) is a perspective view of the third part 230 according to a second modification of the first embodiment. Figure 40(D) ​​is a perspective view of part 14, part 4000. Figure 40(E) is a perspective view of the first part 210 according to a second modification of the first embodiment.

[0106] In the second modification of the first embodiment of the joint model 200, the third part 230 (movable unit 300) housing the second part 220 is inserted into the 14th part 4000 along the sliding direction.

[0107] The 14th part 4000, into which the movable unit 300 is inserted, is housed in the first cavity 212 of the first part 210 along the longitudinal axis direction of the joint model 200, for example, the longitudinal direction of the second connection part 213. The upper surface 4000TS of the housed 14th part 4000 connects to the outer surface of the 1st part 210, forming the outer surface of the continuous joint model 200.

[0108] In a second modification of the first embodiment of the joint model 200, the second part 220 is rotatable within the second cavity 232 of the third part 230, thereby allowing the second part 220 to also be rotatable within the first cavity 212 of the first part 210.

[0109] In a second modification of the first embodiment of the joint model 200, the third part 230 is slidable on the 14th part 4000, thereby allowing the second part 220 to slide within the first cavity 212 of the first part 210. [Examples]

[0110] The following describes a second embodiment of joint model 200 and its variations, particularly the differences from the first embodiment. Descriptions of components common to or similar to those in the first embodiment of joint model 200 may be omitted. Please refer to the description of the first embodiment for details on those components.

[0111] Example 2-1-1 Figure 12 is an example of an explanatory diagram illustrating a second embodiment of the joint model 200. Figure 12(A) is a perspective view of a second embodiment of the joint model 200. The joint model 200 includes a first part 210, a second part 220, and a third part 230 and a fourth part 240.

[0112] Figure 12(B) is a perspective view showing the movable unit 300 and the fourth component 240 assembled together. In the state shown in Figure 12(B), the guide projection 234 of the third component 230 is in contact with the longitudinal edge 260L2 of the second guide slit of the fourth component 240.

[0113] Figure 12(C) is a perspective view of the first part 210 according to the second embodiment. The first part 210 includes a first opening 211, a first cavity 212, the longitudinal edge 260L1 of the first guide slit 260 (see Figure 13), and a fifth opening 215. The first opening 211 and the fifth opening 215 are openings defined by edges shown by dashed lines. The fifth opening 215 is connected to the first cavity 212.

[0114] The first part 210 houses the third part 230 within the first cavity 212 so that the third part 230 can slide within the first cavity. The third component 230, housed within the first cavity 212, is slidable between a first position and a second position within the first cavity 212. Furthermore, the third component 230 may also house the second component 220 in a slidable manner within the second cavity 232.

[0115] Figure 12(D) is a perspective view of the fourth component 240 according to the first embodiment. The fourth component 240 has a bottom portion 244 which is a connecting surface having a second connecting portion 243. The fourth component 240 has a second connecting portion 243 for connecting to the second external component and connects to the first component 210 via a fifth opening 215.

[0116] Two outer wall sections 248 (248a, 248b) are connected to the bottom 244 of the fourth component 240, and the ends of the outer wall sections 248 (248a, 248b) form the longitudinal edge 260L2 of the second guide slit (see Figure 13).

[0117] Figure 12(E) is a perspective view of the movable unit 300 according to the second embodiment. Figure 12(F) is a perspective view of the second part 220 according to the second embodiment. Figure 12(G) is a perspective view of the third component 230 according to the second embodiment. In the second embodiment of the third component 230, the third component 230 has guide projections 234 on each of its two outer surfaces 235.

[0118] Figure 13 is an example of an explanatory diagram illustrating the relationship between the first part 210 and the fourth part 240. Figures 13(A), 13(B), 13(C), and 13(D) are perspective views of a second embodiment of the first component 210, viewed from different directions. Figures 13(E) and 13(F) are perspective views of the fourth component 240 from different directions.

[0119] As shown in Figures 13(A) and 13(B), in the second embodiment of the first component 210, the first guide slit longitudinal edge 260L1 of the guide slit 260 is formed within the first cavity 212 as part of the recess of the inner wall forming the first cavity 212.

[0120] As shown in Figures 13(C) and 13(D), the first part 210 according to the second embodiment has a fifth opening 215 with an asymmetrical shape. Furthermore, the bottom portion 244 of the fourth part 240 has a shape that corresponds to the asymmetrical shape of the fifth opening 215. As a result, the user can only insert the fourth part 240 into the first part 210 in a position where these shapes are compatible, thus reducing the likelihood of assembly errors.

[0121] The first component 210 according to the second embodiment has an engaging projection 219 within the first cavity 212. The engaging projection 219 engages with the engaging recess of the fourth component 240 when the fourth component 240 is connected to the first component 210. Alternatively, the engaging projection 219 and the engaging recess may not engage, and a gap may be provided so that the engaging projection 219 guides (positions) the engaging recess.

[0122] The engaging projection 219, similar to the stopper projection 214 of the joint model 200 according to the first embodiment, contacts the movable unit 300 as it slides from the first slide position to the second slide position (second slide direction), thereby restricting further movement of the movable unit 300 in the second slide direction.

[0123] As described above, each feature described and illustrated in relation to Example 2-1-1 can be replaced, for example, by adopting the corresponding feature of Example 1 described above. For example, the engaging projection 219 of the joint model 200 according to Example 2-1-1 may be replaced with the stopper projection 214 of Example 1-1 or the stopper projection 214 of Example 1-2, etc. In such a configuration, the fourth part 240 of the joint model 200 according to Example 2-1-1 may be formed without the engaging recess 249.

[0124] Figure 14 is an example of another explanatory diagram illustrating the relationship between the first part 210 and the fourth part 240. Figures 14(A) and 14(B) are cross-sectional perspective views of the first part 210 and the fourth part 240 assembled according to the second embodiment, viewed from different directions.

[0125] Figures 14(C) and 14(D) are cross-sectional perspective views of the first component 210 shown in Figures 14(A) and 14(B). Figures 14(E) and 14(F) are cross-sectional perspective views of the fourth component 240 shown in Figures 14(A) and 14(B).

[0126] In a second embodiment of the joint model 200, the guide slit 260 is formed such that the first guide slit longitudinal edge 260L1 is formed by the first part 210, and the second guide slit longitudinal edge 260L2 is formed by the fourth part 240.

[0127] Within the first cavity 212 of the first component 210, the inner wall portion 218 that forms the longitudinal edge 260L1 of the first guide slit has inner wall concave surfaces 218CS1 and 218CS2. The shapes of the inner wall concave surfaces 218CS1 and 218CS2 are matched to the shapes of the outer wall convex surfaces 248CS1 and 248CS2 of the outer wall portion 248 (248a, 248b) of the fourth component 240, and are formed to fit together perfectly.

[0128] Because the inner wall concave surfaces 218CS1, 218CS2 and the outer wall convex surfaces 248CS1, 248CS2 have curved surfaces, the first part 210 and the fourth part 240 according to the second embodiment have a larger contact area. Based on the resulting greater frictional force, the first part 210 and the fourth part 240 are fixedly connected to each other. Figure 15 is an example of a six-view drawing of a third component 230 according to the second embodiment. Figure 15(A) is a front view of the third component 230 according to the second embodiment. Figure 15(B) is a rear view of the third component 230 according to the second embodiment. Figure 15(C) is a left side view of the third component 230 according to the second embodiment. Figure 15(D) is a right side view of the third component 230 according to the second embodiment. Figure 15(E) is a plan view of the third component 230 according to the second embodiment. Figure 15(F) is a bottom view of the third component 230 according to the second embodiment.

[0129] Figure 16 is an example of a six-view drawing of the fourth component 240 according to the second embodiment. Figure 16(A) is a front view of the fourth component 240 according to the second embodiment. Figure 16(B) is a rear view of the fourth component 240 according to the second embodiment. Figure 16(C) is a left side view of the fourth component 240 according to the second embodiment. Figure 16(D) is a right side view of the fourth component 240 according to the second embodiment. Figure 16(E) is a plan view of the fourth component 240 according to the second embodiment. Figure 16(F) is a bottom view of the fourth component 240 according to the second embodiment.

[0130] Example 2-1-2 Figure 17 is an example of an explanatory diagram illustrating the first modified example of the second embodiment of the joint model 200. In the first modified example of the second embodiment of the joint model 200, the first part 210, the second part 220, and the third part 230 have the same configuration as in the second embodiment of the joint model 200, so their description will be omitted.

[0131] Figure 17(A) is a perspective view showing the fourth part 240 and the fifth part 250 stacked together, according to the first modified example of the second embodiment.

[0132] Figures 17(B) and 17(E) are perspective views of the fifth part 250 according to the first modification of the second embodiment, viewed from different directions. Figures 17(C) and 17(D) are perspective views of the fourth part 240 according to the first modification of the second embodiment, viewed from different directions.

[0133] In the first modification of the second embodiment of the joint model 200, the state in which the fourth part 240 and the fifth part 250 shown in Figure 17(A) are stacked results in a shape similar to the fourth part 240 according to the second embodiment of the joint model 200 described using Figure 12, etc.

[0134] In the first modification of the second embodiment of the joint model 200, the user can house the movable unit 300 in the first cavity 212 of the first part 210, and then fix the movable unit 300 in the first cavity 212 using the fifth part 250.

[0135] This allows the user to independently perform the work on the fourth component 240 and the work of housing it into the first cavity 212 of the movable unit 300. Therefore, users can assemble the joint model in a reasonable or easily manageable order each time.

[0136] . Example 2-2 Figure 35 is an example of an explanatory diagram illustrating a second modification of the second embodiment of the joint model 200. Figure 35(A) is a perspective view of a second modified example of the second embodiment of the joint model 200. The joint model 200 includes the first part 210, the second part 220, the third part 230, the fourth part 240, and the fourteenth part.

[0137] The first part 210 houses the third part 230 within the first cavity 212 so that the third part 230 can slide within the first cavity. The third component 230, housed within the first cavity 212, is slidable between a first position and a second position within the first cavity 212. Furthermore, the third component 230 may also house the second component 220 in a slidable manner within the second cavity 232.

[0138] Figure 35(B) is a perspective view showing the movable unit 300 and the fourth component 240 assembled together. In the state shown in Figure 35(B), the movable unit 300 is merely resting on the fourth component 240 and is not fixed in place.

[0139] Figure 35(C) is a perspective view of the first part 210 according to a second modification of the second embodiment. Figure 35(D) is a perspective view showing the assembled movable unit 300 and part 17 3500 according to a second modified example of the second embodiment.

[0140] Figure 35(E) is a perspective view of the fourth component 240 according to a second modification of the second embodiment. The fourth component 240 has a bottom portion 244 which is a connecting surface having a second connecting portion 243. The fourth component 240 has a second connecting portion 243 for connecting to the second external component and connects to the first component 210 via a fifth opening 215.

[0141] Figure 35(F) is a perspective view of the movable unit 300 according to a second modification of the second embodiment. Figure 35(G) is a perspective view of part 17 3500 according to a second modification of the second embodiment. Figure 35(H) is a perspective view of the second part 220 according to a second modification of the second embodiment. Figure 35(I) is a perspective view of the third component 230 according to a second modification of the second embodiment.

[0142] In the second modification of the second embodiment, the third part 230 has a slider projection 237, and the seventeenth part 3500 has a slider recess 3520. The user can attach the movable unit 300 to the 17th part 3500 by fitting the slider protrusion 237 of the third part 230 into the slider recess 3520 of the 17th part 3500 and sliding it.

[0143] Figure 36 is an example of another explanatory diagram illustrating a second modification of the second embodiment of the joint model 200. Figure 36(A) is a perspective view of a second modified example of the second embodiment of the joint model 200, viewed from the bottom 244 side.

[0144] Figure 36(B) is a perspective view showing the first part 210 in which the movable unit 300 and the 17th part 3500 are housed, according to a second modification of the second embodiment. Figure 36(C) is a perspective view of the fourth component 240, according to a second modification of the second embodiment, as seen from the bottom 244 side.

[0145] Figure 36(D) is a perspective view of the first part 210, according to a second modified example of the second embodiment, as seen from the fifth opening 215 side. The fifth opening 215 of the first part 210, according to the second modification of the second embodiment, has a line-symmetric shape with one axis of symmetry. Figure 36(E) is a perspective view of part 17 3500, to which a movable unit 300 according to a second modification of the second embodiment is attached, as seen from the bottom 3530 side.

[0146] In the state in which the first part 210, according to the second modified example of the second embodiment, houses the fourth part 240, the two outer wall portions 248 (248a, 248b) connected to the bottom portion 244 of the fourth part 240 are, Each is inserted into the insertion holes 3600 (3600a, 3600b) in the outer wall portion of the first component 210.

[0147] The outer wall insertion holes 3600 (3600a, 3600b) are in contact with and surround the outer wall portions 248 (248a, 248b) of the fourth component 240. In the second modified example of the second embodiment, the contact area between the outer wall insertion hole 3600 (3600a, 3600b) and the outer wall portion 248 (248a, 248b) of the fourth component 240 can be designed to be larger.

[0148] As a result, a large frictional force is generated between the outer wall insertion holes 3600 (3600a, 3600b) and the outer wall portion 248 (248a, 248b) of the fourth component 240, which makes the fixing between the first component 210 and the fourth component 240 more stable.

[0149] Figure 37 is an example of the first explanatory diagram illustrating the movable mechanism of a second modified example of the second embodiment of the joint model 200. Figure 37(A) is a cross-sectional view of the first part 210 according to a second modified example of the second embodiment. Figure 37(B) is a front view of part 17 3500 with a movable unit 300 attached, according to a second modification of the second embodiment.

[0150] Figure 37(C) is a rear view of the third component 230 according to a second modification of the second embodiment. Figure 37(D) is a cross-sectional view of the third component 230, as seen from the side, according to a second modified example of the second embodiment. Figure 37(E) is a rear cross-sectional view of the third component 230 according to a second modified example of the second embodiment.

[0151] Figure 37(F) is a front view of part 17 3500 according to a second modification of the second embodiment. Figure 37(G) is a side view of part 17 3500 according to a second modified example of the second embodiment. Figure 37(H) is a side cross-sectional view of part 17 3500 according to a second modification of the second embodiment.

[0152] In the second modification of the second embodiment of the joint model 200, the movable unit 300 moves in the sliding direction SD (SD1, SD2) within the 17th part 3500 with the slider protrusion 273 housed in the slider recess 3520.

[0153] The sliding direction SD(SD1,SD2) consists of a first sliding direction SD1 and a second sliding direction SD2 which is in the opposite direction to the first sliding direction SD1. The first sliding direction SD1 is the direction in which the third component 230 moves from the third opening 233 to the second opening 231 within the first cavity 212 (first sliding direction). The second sliding direction SD2 is the direction in which the third component 230 moves from the second opening 231 to the third opening 233 within the first cavity 212 (the second sliding direction).

[0154] Figure 38 is an example of a second explanatory diagram illustrating the movable mechanism of a second modified example of the second embodiment of the joint model 200. Figure 38(A) is a perspective view of a second modified example of the second embodiment of the joint model 200, with the movable unit 300 in the second slide position. Figure 38(B) is a perspective view of a second modified example of the second embodiment of the joint model 200, with the movable unit 300 in the first slide position.

[0155] The first slide position is the position where the third part 230 moves furthest towards the first opening 211 (outside the joint model 200) in the direction from the third opening 233 to the second opening 231 (first slide direction) within the first cavity 212. The second slide position is the position where the third part 230 moves furthest from the first opening 211 (towards the inside of the joint model 200) in the direction from the second opening 231 to the third opening 233 (second slide direction) within the first cavity 212.

[0156] Figure 38(C) is a plan view of a second modified example of the second embodiment of the joint model 200, with the movable unit 300 in the second slide position. Figure 38(D) is a plan view of a second modified example of the second embodiment of the joint model 200, with the movable unit 300 in the first slide position.

[0157] Figure 38(E) is a left side view of a second modified example of the second embodiment of the joint model 200, with the movable unit 300 in the second slide position. Figure 38(F) is a left side view of a second modified example of the second embodiment of the joint model 200, with the movable unit 300 in the first slide position.

[0158] In a second modification of the second embodiment of the joint model 200, a part of the third component 230 constituting the movable unit 300 can protrude from the first opening 211 of the first component 210. This facilitates the design of joint models 200 with a wider range of motion, particularly a wider range of rotation of the second part 220.

[0159] Figure 39 is an example of a third explanatory diagram illustrating the movable mechanism of a second modified example of the second embodiment of the joint model 200. Figure 39(A) is a side view showing the positional relationship between the movable unit 300 and the 17th part 3500 when the movable unit 300, according to a second modification of the second embodiment, is in the second slide position. Figure 39(B) is a side view showing the positional relationship between the movable unit 300 and the 17th part 3500 when the movable unit 300, according to a second modification of the second embodiment, is in the first slide position.

[0160] Figure 39(C) is a cross-sectional view showing the positional relationship between the movable unit 300 and the 17th part 3500 when the movable unit 300, according to a second modification of the second embodiment, is in the second slide position. Figure 39(D) is a cross-sectional view showing the positional relationship between the movable unit 300 and the 17th part 3500 when the movable unit 300, according to a second modification of the second embodiment, is in the first slide position.

[0161] By using the 17th part 3500, the movable unit 300 can achieve a wide range of motion, as explained with reference to Figure 38, without the movable unit 300 falling off the first part 210, particularly a range of motion large enough for a part of the third part 230 to protrude from the first opening 211 of the first part 210. [Examples]

[0162] For example, in a toy 100 having a joint model 200, the joint model 200 is detachable, and it is preferable to have an alternative joint model with a different range of motion than the joint model 200 as a replacement joint model. In such toys 100, users can replace the joint model 200 with an alternative joint model depending on the intended use, thereby providing the toy 100 with a range of motion more suitable for that purpose.

[0163] Example 3-1-1 Figure 18 is an example of an explanatory diagram illustrating a first embodiment of the first alternative joint model 1800. The first alternative joint model 1800 is a joint model that can be attached to the first external component as a replacement for the joint model 200.

[0164] Figure 18(A) is a perspective view of the first embodiment of the first alternative joint model 1800. The first alternative joint model 1800 includes part 7 1810, a movable unit 1860, and part 11 1870.

[0165] The movable unit 1860 consists of part 8 1820, part 9 1830, and part 10 1840.

[0166] The eighth part 1820 has a third connector 1821 which is designed to be common with the first connector of the joint model 200. As a result, even if the movable mechanism of the movable unit 1860 is different, it can be attached to the common first external part 10. Furthermore, the first alternative joint model 1800 can be used independently, in which case the first alternative joint model 1800 does not necessarily need to have a third connector 1821, or does not need to have a third connector 1821 that is designed in common with the first connector.

[0167] In the first embodiment of the first alternative joint model 1800, the third connecting portion 1821 is exemplified as a ball joint type receiving portion (connecting portion) as a modified example of the first connecting portion 223 of the joint model 200.

[0168] The third connecting portion 1821 may be composed of a first connecting recess 223a and a first connecting protrusion 223b, similar to the first connecting portion 223, or conversely, the first connecting portion 223 may have a ball joint type receiving portion (connecting portion) configuration.

[0169] Figure 18(B) shows the movable unit 1860 attached to the 11th part 1870. Figure 18(C) is a perspective view of part number 7. The seventh component 1810 has a sixth opening 1811, a seventh opening 1813 (see Figure 19(B)), and a fourth cavity 1812 connecting the sixth opening 1811 and the seventh opening 1813.

[0170] Figure 18(D) is a perspective view of part 11, 1870. The eleventh component 1870 has a fourth connecting portion 1874 for connecting to the second external component 120. The fourth connecting portion has a structure common to the second connecting portion. The 11th part 1870 has two wall portions: a first wall portion 1871 and a second wall portion 1872. Figure 18(E) is a perspective view of the movable unit 1860. Figure 18(F) shows the combination of part 8 1820 and part 9 1830.

[0171] When the eighth part 1820 and the ninth part 1830 are combined, the eighth part 1820 is rotatably connected to the ninth part 1830 at one end region of the ninth part 1830, and the ninth part 1830 is rotatably connected to the tenth part 1840 at the other end of the ninth part 1830.

[0172] Figure 18(G) is a perspective view of part 10, part 1840. The tenth part 1840 has a second rotating shaft holding portion 1841, a third connecting portion seat portion 1842, and an insertion projection portion 1843.

[0173] The tenth part 1840 has a longitudinal contact surface that extends parallel to the insertion direction of the tenth part (movable unit 1860) into the seventh part 1810 (the longitudinal direction of the tenth part 1840) and contacts the circumferential surface of the inner wall of the seventh part 1810.

[0174] The longitudinal contact surface of the tenth part 1840 has a contour shape that matches the contour shape of a portion of the inner wall circumferential surface of the seventh part 1810. The longitudinal contact surface has a curved shape that is convex toward the inner wall circumferential surface of the seventh part 1810.

[0175] The second rotation axis holding part 1841 holds the second rotation axis 1832 of the ninth part 1830 so that the ninth part 1830 can rotate around the second rotation axis 1832. The third connection part seat part 1842 contacts the third connection part 1821 of the eighth component 1820 and receives the load from the first external component 110 received by the third connection part 1821. The insertion convex part 1843 is inserted into the insertion concave part 1814a formed in the seventh component 1810.

[0176] FIG. 18(H) is a perspective view of the ninth component 1830. The ninth component 1830 has a first rotation axis holding part 1831 at one end and a second rotation axis 1832 at the other end. The first rotation axis holding part 1831 holds the first rotation axis 1822 of the eighth component 1820 so that the eighth component 1820 can rotate around the first rotation axis 1822.

[0177] FIG. 18(I) is a perspective view of the eighth component 1820. The eighth component 1820 has a third connection part 1821 at one end and a first rotation axis 1822 at the other end. The third connection part 1821 has the same configuration as the first connection part 223 and can be connected to the same first external component 110.

[0178] Note that the eighth component 1820 and the ninth component 1830 may be configured to be telescopic. In such a configuration, the mobility of the first alternative joint model 1800 can be further improved.

[0179] As described above, the third connection part 1821 exemplified as the receiving part of the ball joint in FIG. 18 may be composed of a first connection concave part 223a and a first connection convex part 223b like the first connection part 223.

[0180] In the first alternative joint model 1800, the first wall part 1871 and the second wall part 1872 function as contact wall parts that contact the inner wall parts of the fourth cavity part 1812 of the seventh component 1810 on the outer surfaces, respectively.

[0181] Furthermore, the first wall portion 1871 and the second wall portion 1872 each contact the movable unit 1860 on their inner surfaces, and sandwich and hold the movable unit 1860 between the first wall portion 1871 and the second wall portion 1872, so that the eleventh component 1870 holds the movable unit 1860 while suppressing the movement of the movable unit 1860 relative to the seventh component 1810 of the tenth component 1840.

[0182] As described above, each feature described and illustrated in relation to Example 3-1-1 can be adopted and replaced with the corresponding feature of, for example, Example 3-1-2 described later. For example, the shape of the sixth opening 1811 of the first alternative joint model 1800 according to Example 3-1-1 can be replaced with the shape of the sixth opening 1811 of the first alternative joint model 1800 according to Example 3-1-2 described later.

[0183] FIG. 19 is an example of an explanatory diagram for explaining the relationship between the seventh component 1810 and the eleventh component 1870. FIG. 19(A) is a plan view of the seventh component 1810. FIG. 19(B) is a bottom view of the seventh component 1810. FIGS. 19(C) and 19(D) are perspective views of the seventh component 1810 viewed from different directions. FIGS. 19(E) and 19(F) are perspective views of the eleventh component 1870 viewed from different directions.

[0184] The fourth cavity 1812 of the seventh component 1810 connects the sixth opening 1811 and the seventh opening 1813. The seventh opening 1813 has a line-symmetric shape with one axis of symmetry.

[0185] The fourth cavity 1812 has an inner wall portion upper surface 1814 and an inner wall portion peripheral surface 1817. The inner wall portion peripheral surface 1817 is a peripheral surface that extends parallel to the insertion direction of the eleventh component 1870 and the movable unit 1860. An insertion recess 1814a is formed on the inner wall portion upper surface 1814. The insertion projection 1843 of the tenth part 1840 is inserted into the insertion recess 1814a. The insertion of the insertion projection 1843 into the insertion recess 1814a fixes and positions the movable unit 1860.

[0186] The movement of the tenth part 1840 relative to the seventh part 1810 is suppressed based on the frictional force between the outer surfaces 1871a, 1831b of the first wall portion 1871 and the second wall portion 1872 and the seventh part 1810, and the frictional force between the inner surfaces 1872a, 1832b of the first wall portion 1871 and the second wall portion 1872 and the movable unit 1860.

[0187] The length of the gap between the inner surface 1872a of the first wall portion 1871 and the inner surface 1872b of the second wall portion 1872 is smaller than the length of the diameter of the cross-sectional circle of the ball joint receiving portion of the third connecting portion 1821.

[0188] The ends of the first wall portion 1871 and the second wall portion 1872 are formed in a concave shape corresponding to the curvature of the ball joint receiving portion. This allows the third connecting portion 1821 to be compactly housed within the fourth cavity portion 1812 while maintaining the size of the first wall portion 1871 and the second wall portion 1872.

[0189] The bottom portion 1834 of the 11th part 1870 has a shape in which the axis of symmetry of the 7th opening 1813 corresponds to a single line-symmetry shape. This ensures that the positional relationship for inserting the eleventh part 1870 into the seventh part 1810 is uniquely determined. Consequently, it becomes easier for the user to avoid inserting the eleventh part 1870 into the seventh part 1810 in the wrong position.

[0190] Figure 20 is an example of an explanatory diagram illustrating the movable mechanism of the movable unit 1860. Figure 20(A) is a perspective view of the first alternative joint model 1800 in a state where the third connecting portion 1821 is in contact with the third connecting portion seat 1842.

[0191] Figure 20(B) is a perspective view of the movable unit 1860 and the 11th part 1870, with the third connecting portion 1821 in contact with the third connecting portion seat 1842. Figure 20(C) is a perspective view of the movable unit 1860 in a state where the third connecting portion 1821 is in contact with the third connecting portion seat 1842.

[0192] Figure 20(D) is a perspective view of the first alternative joint model 1800, in which the eighth part 1820 rotates around the first rotation axis 1822 and the ninth part 1830 rotates around the second rotation axis 1832.

[0193] Figure 20(E) is a perspective view of the movable unit 1860 and the eleventh part 1870, with the eighth part 1820 rotating around the first rotation axis 1822 and the ninth part 1830 rotating around the second rotation axis 1832.

[0194] Figure 20(F) is a perspective view of the movable unit 1860 in which the eighth part 1820 rotates around the first rotation axis 1822 and the ninth part 1830 rotates around the second rotation axis 1832.

[0195] In the first alternative joint model 1800, the third connection part 1821 can perform a movement that combines two rotational movements: rotational movement based on a rotational movement mechanism around the first rotation axis 1822 and rotational movement based on a rotational movement mechanism around the second rotation axis 1832.

[0196] The third connection part 1821 in the first alternative joint model 1800 can move along a different trajectory and range than the movement of the first connection part 223 in the joint model 200, which is a combination of movement in the rotational direction based on a rotational movement mechanism and movement in the sliding direction based on a sliding movement mechanism.

[0197] Therefore, users can easily achieve their desired poses by swapping out the joint model 200 and the first alternative joint model 1800 according to their intended use, such as when assembling a plastic model or figure model.

[0198] FIG. 21 is an example of an explanatory diagram for explaining the movable range of the movable unit 1860. FIG. 21(A) is a plan view of the first alternative joint model 1800 in a state where the third connection part 1821 is in contact with the third connection part seat part 1842. FIG. 21(B) is a plan view of the first alternative joint model 1800 in a state where the eighth component 1820 rotates about the first rotation axis 1822 and the ninth component 1830 rotates about the second rotation axis 1832.

[0199] FIG. 21(C) is a left side view of the first alternative joint model 1800 in a state where the third connection part 1821 is in contact with the third connection part seat part 1842. FIG. 21(D) is a left side view of the first alternative joint model 1800 in a state where the eighth component 1820 rotates about the first rotation axis 1822 and the ninth component 1830 rotates about the second rotation axis 1832.

[0200] FIG. 21(E) is a partial cross-sectional view of the first alternative joint model 1800 in a state where the third connection part 1821 is in contact with the third connection part seat part 1842. In FIG. 21(E), the eleventh component 1870 and the movable unit 1860 are shown in cross-section.

[0201] FIG. 21(F) is a partial cross-sectional view of the first alternative joint model 1800 in a state where the eighth component 1820 rotates about the first rotation axis 1822 and the ninth component 1830 rotates about the second rotation axis 1832. In FIG. 21(F), the eleventh component 1870 and the movable unit 1860 are shown in cross-section.

[0202] The third connection part 1821 of the first alternative joint model 1800 can move between a state where it is completely accommodated in the fourth cavity 1812 and a state where at least a part thereof protrudes from the sixth opening 1811 as it rotates about the first rotation axis 1822 and rotates about the second rotation axis 1832.

[0203] Figure 22 is an example of another explanatory diagram illustrating the range of motion of the movable unit 1860. Figure 22(A) is a partial cross-sectional view of the first alternative joint model 1800, similar to Figure 21(E), showing the third connecting portion 1821 in contact with the third connecting portion seat 1842.

[0204] Figure 22(B) is a left-side partial cross-sectional view showing the state in which the third connecting portion 1821 is in contact with the third connecting portion seat 1842. Figure 22(C) is a right-hand partial cross-sectional view showing the state in which the third connecting portion 1821 is in contact with the third connecting portion seat 1842. Figures 22(B) and 22(C) show a cross-sectional view of part 11, 1870.

[0205] Figure 22(D) is a partial cross-sectional view of the first alternative joint model 1800, similar to Figure 21(F), in which the eighth part 1820 rotates around the first rotation axis 1822 and the ninth part 1830 rotates around the second rotation axis 1832.

[0206] Figure 22(E) is a left-hand cross-sectional view showing the state in which the eighth part 1820 rotates around the first rotation axis 1822 and the ninth part 1830 rotates around the second rotation axis 1832. Figure 22(F) is a right-hand partial cross-sectional view showing the state in which the eighth part 1820 rotates around the first rotation axis 1822 and the ninth part 1830 rotates around the second rotation axis 1832. Figures 22(E) and 22(F) show a cross-sectional view of part 11, 1870.

[0207] In the first alternative joint model 1800, the movable unit 1860 has a compact configuration that can be housed within the fourth cavity 1812, while simultaneously achieving movement of the third connection part 1821 by combining two rotational movements: rotational movement based on a rotational movement mechanism around the first rotation axis 1822 and rotational movement based on a rotational movement mechanism around the second rotation axis 1832.

[0208] The range of motion of the third connecting portion 1821, which combines the two rotational movements described above, can be limited based on the spatial shape of the fourth cavity portion 1812 of the seventh component 1810 and the shape of the sixth opening 1811.

[0209] For example, in a configuration in which the shape of the sixth opening 1811 of the first alternative joint model 1800 according to Example 3-1-1 is replaced with the shape of the sixth opening 1811 of the first alternative joint model 1800 according to Example 3-1-2 described later, the size of the sixth opening 1811 can be designed such that the third connecting portion 1821 cannot exit the sixth opening 1811, thereby limiting the range of movement of the third connecting portion 1821 to within the fourth cavity portion 1812.

[0210] Figure 23 is an example of a six-view drawing of the first embodiment of the first alternative joint model 1800. Figure 23(A) is a front view of the first embodiment of the first alternative joint model 1800. Figure 23(B) is a rear view of the first embodiment of the first alternative joint model 1800. Figure 23(C) is a left side view of the first embodiment of the first alternative joint model 1800. Figure 23(D) is a right side view of the first embodiment of the first alternative joint model 1800. Figure 23(E) is a plan view of the first embodiment of the first alternative joint model 1800. Figure 23(F) is a bottom view of the first embodiment of the first alternative joint model 1800.

[0211] Example 3-1-2 Figure 24 is an example of an explanatory diagram illustrating a second embodiment of the first alternative joint model 1800. In the following description, structures and features common to the first alternative joint model 1800 according to the first embodiment may be omitted.

[0212] Figure 24(A) is a perspective view of a second embodiment of the first alternative joint model 1800. Figure 24(B) shows the movable unit 1860, according to the second embodiment of the first alternative joint model 1800, attached to the 11th part 1870. Figure 24(C) is a perspective view of the seventh part of the second embodiment of the first alternative joint model 1800. The seventh component 1810 has a sixth opening 1811, a seventh opening 1813 (see Figure 25(B)), and a fourth cavity 1812 connecting the sixth opening 1811 and the seventh opening 1813.

[0213] Figure 24(D) is a perspective view of the 11th part 1870 according to a second embodiment of the first alternative joint model 1800. The eleventh component 1870 has a fourth connecting portion 1874 for connecting to the second external component 120. The fourth connecting portion has a structure common to the second connecting portion. The 11th part 1870 has two wall portions: a first wall portion 1871 and a second wall portion 1872. Figure 24(E) is a perspective view of a movable unit 1860 according to a second embodiment of the first alternative joint model 1800. Figure 24(F) shows the combination of part 8 1820 and part 9 1830 according to the second embodiment of the first alternative joint model 1800.

[0214] When the eighth part 1820 and the ninth part 1830 are combined, the eighth part 1820 is rotatably connected to the ninth part 1830 at one end region of the ninth part 1830, and the ninth part 1830 is rotatably connected to the tenth part 1840 at the other end of the ninth part 1830.

[0215] Figure 24(G) is a perspective view of part 10, part 1840. The second rotation axis holding portion 1841 of the tenth part 1840 holds the second rotation axis 1832 of the ninth part 1830 so that the ninth part 1830 can rotate around the second rotation axis 1832.

[0216] Figure 24(H) is a perspective view of part 9, part 1830. The ninth part 1830 has a first rotating shaft holder 1831 at one end and a second rotating shaft 1832 at the other end. The first rotation axis holding part 1831 holds the first rotation axis 1822 of the eighth part 1820 so that the eighth part 1820 can rotate around the first rotation axis 1822.

[0217] Figure 24(I) is a perspective view of part 8, part 1820. The third connection part 1821 has a configuration common to the first connection part 223 and can be connected to the same first external component 110.

[0218] In the second embodiment of the first alternative joint model 1800, the first wall portion 1871 and the second wall portion 1872 each function as contact walls that contact the inner wall portion of the fourth cavity portion 1812 of the seventh part 1810 on their outer surfaces.

[0219] Furthermore, the first wall portion 1871 and the second wall portion 1872 each contact the seventh part 1810 on their inner surfaces, and the bottom portion 1834 supports and holds the movable unit 1860, thereby the eleventh part 1870 holds the movable unit 1860 while suppressing the movement of the tenth part 840 relative to the seventh part 1810.

[0220] As described above, each feature described and illustrated in relation to Example 3-1-2 can be replaced, for example, by adopting the corresponding feature of Example 3-1-1 described above. For example, one of the first wall portion 1871 and the second wall portion 1872 of the first alternative joint model 1800 according to Example 3-1-2 can be replaced with one of the first wall portion 1871 and the second wall portion 1872 of the first alternative joint model 1800 according to Example 3-1-1 described above. In such a configuration, the first wall portion insertion hole 1815 or the second wall portion insertion hole 1816 is eliminated from the seventh part 1810 of the first alternative joint model 1800 according to Example 3-1-2.

[0221] Figure 25 is an example of another explanatory diagram illustrating the relationship between part 7 1810 and part 11 1870 according to a second embodiment of the first alternative joint model 1800. Figure 25(A) is a plan view of the seventh part 1810 according to the second embodiment, which is based on the second embodiment of the first alternative joint model 1800. Figure 25(B) is a bottom view of the seventh part 1810 according to a second embodiment of the first alternative joint model 1800.

[0222] Figures 25(C) and 25(D) are perspective views of the seventh part 1810 according to the second embodiment of the first alternative joint model 1800, viewed from different directions. Figures 25(E) and 25(F) are perspective views of the 11th part 1870 according to a second embodiment of the first alternative joint model 1800, viewed from different directions.

[0223] The fourth cavity 1812 of the seventh part 1810 connects the sixth opening 1811 and the seventh opening 1813. The seventh opening 1813 has a line-symmetric shape with one axis of symmetry.

[0224] The fourth cavity 1812 has an inner wall upper surface 1814, a first wall insertion hole 1815, a second wall insertion hole 1816, and an inner wall circumferential surface 1817. The first wall portion 1871 of the 11th part 1870 is inserted into the first wall portion insertion hole 1815. The second wall portion 1872 of the 11th part 1870 is inserted into the second wall portion insertion hole 1816.

[0225] In the second embodiment of the first alternative joint model 1800, the outer surface 1871a and inner surface 1872a of the first wall portion 1871 of the eleventh part 1870, and the outer surface 1871b and inner surface 1872b of the second wall portion 1872 of the eleventh part 1870, are in contact with the seventh part at the first wall portion insertion hole 1815 and the second wall portion insertion hole 1816.

[0226] In the second embodiment of the first alternative joint model 1800, the contact area between the seventh part and the eleventh part 1870 can be increased compared to the first embodiment of the first alternative joint model 1800 by using the first wall insertion hole 1815 and the second wall insertion hole 1816.

[0227] In the second embodiment of the first alternative joint model 1800, the increased contact area between the seventh part and the eleventh part 1870 increases the frictional force generated between the seventh part and the eleventh part 1870, thereby improving the stability of the fixed connection between the seventh part and the eleventh part 1870.

[0228] Figure 26 is an example of an explanatory diagram illustrating an embodiment of the second alternative joint model 2600. That is the case. The second alternative joint model 2600 is a joint model that can be attached to the first external component as a replacement for the joint model 200.

[0229] Figure 26(A) is a perspective view of an embodiment of the second alternative joint model 2600. The second alternative joint model 2600 includes the 12th part 2610 and the 13th part 2620. The 13th part 2620 has a fifth connector 2623 that is designed to be common with the first connector of the joint model 200. This allows the second alternative joint model 2600 to be attached to the common first external component 10.

[0230] In the second alternative joint model 2600, the fifth connection part 2623 is exemplified as a ball joint type ball portion (connection part) as a modified example of the first connection part 223 of the joint model 200.

[0231] The fifth connecting portion 2623 may be composed of a first connecting recess 223a and a first connecting protrusion 223b, similar to the first connecting portion 223, or conversely, the first connecting portion 223 may have a ball joint type ball portion (connecting portion) configuration.

[0232] Figure 26(B) is a perspective view of part 12, 2610. The twelfth part 2610 has an eighth opening 2611, a fifth cavity 2612, a sixth connecting portion 2613, and a support slit 2614. The fifth cavity 2612 is connected to the eighth opening. The sixth connection part 2613 is a connection part for connecting to the second external component 120.

[0233] Figures 26(C) and 26(D) are perspective views of part 13 2620 viewed from different directions. The 13th component 2620 has a rotating shaft 2621, a partial cylindrical portion 2622, a fifth connecting portion 2623, and a support projection 2624. The fifth connecting portion 2623 is formed by connecting to the circumferential surface of the partial cylindrical portion 2622. The fifth connection section 2623 is designed in common with the first connection section 223.

[0234] The partial cylindrical portion 2622 is formed on at least a part of the outer circumference of the 13th component 2620, with the rotation axis 2621 as the center. The support projection 2624 has a circular contour shape centered on the rotation axis 2621.

[0235] The support projection 2624 extends in the longitudinal direction of the sixth connecting portion 2613 and enters into the support slit 2614 which connects to the fifth cavity portion 2612. In this state, the 13th part 2620 is rotatable around the rotation axis 2621 and slidable in the longitudinal direction of the support slit 2614. Alternatively, it may be made not slidable in the longitudinal direction of the support slit 2614 and rotatable only at predetermined locations.

[0236] For example, the second external component 120 may have a hole for accommodating the sixth connecting portion 2613 and a protrusion that fits into the support slit 2614. For example, the protrusion that fits into the support slit 2614 may be shaped to enter the 12th component 2610 to a position where it contacts the support projection 2624 and restricts the sliding movement of the support projection 2624.

[0237] Figure 27 is an example of an explanatory diagram illustrating the 12th component 2610. Figure 27(A) is a front view of part 12, 2610. Figure 27(B) is a perspective view of part 12, 2610.

[0238] Figure 27(C) is a cross-sectional perspective view of the 12th part 2610 cut along a cross-section parallel to the longitudinal direction of the support slit 2614 and the width 2614W of the support slit 2614. Figure 27(D) is a cross-sectional perspective view of the 12th part 2610 cut with a cross-section parallel to the longitudinal direction of the support slit 2614 and perpendicular to the width 2614W of the support slit 2614. Figure 27(E) is a cross-sectional perspective view of the 12th part 2610 cut through a plane perpendicular to the longitudinal direction of the support slit 2614.

[0239] Figure 27(F) is a cross-sectional view of the 12th component 2610 as seen from the cross-section shown in Figure 27(C). Figure 27(G) is a cross-sectional view of the 12th part 2610 as seen from the cross-section shown in Figure 27(D). Figure 27(H) is a cross-sectional view of the 12th part 2610 as seen from the cross-section shown in Figure 27(E).

[0240] The portion where the fifth cavity 2612 and the support slit 2614 communicate is formed in a molding method using a mold by bringing two molds into contact, for example, by bringing a fixed mold and a movable mold into contact, or by bringing separate movable molds into contact. Alternatively, the fifth cavity 2612 may be formed by a fixed mold, and the support slit 2614 may be formed by a movable mold. The support slit width 2614W is the sum of the first support slit width 2614W1 and the second support slit width 2614W2.

[0241] The thickness of the 13th part 2620, including the support projection 2624, is such that the thickness 2620T1 (see Figure 28) in the area through which the rotating shaft 2621 passes is greater than the length of the fifth cavity width 2612W of the 12th part 2610, by the height of the support projection 2624.

[0242] The user can push the 13th part 2620 into the 5th cavity 2612 while elastically deforming the 12th part 2610. By designing the thickness 2620T2 (see Figure 28) between the upper and lower circular surfaces of the partial cylindrical portion 2622 to be the same as, or slightly larger than, the width 2612W of the fifth cavity, the 12th part 2610 can apply a predetermined pressing force to the upper and lower circular surfaces of the partial cylindrical portion 2622 of the 13th part 2620.

[0243] The predetermined pressing force is, for example, a force large enough to maintain the state of the second alternative joint model 2600 with the first external part 110 attached to the fifth connection part 2623, and can be set appropriately depending on the weight of the first external part 110, the weight of the toy 100, the center of gravity of the toy 100, etc.

[0244] In another embodiment of the second alternative joint model 2600, the twelfth part 2610 may not have the sixth connector 2613. In another embodiment of the second alternative joint model 2600, the 12th part 2610 may have mounting portions, such as recesses or protrusions, for attaching a separately constructed 6th connector 2613.

[0245] In a configuration where the 12th part 2610 has a mounting portion for attaching the 6th connecting portion 2613, which is manufactured separately, the mounting position of the 6th connecting portion 2613 to the 12th part 2610 can be flexibly adjusted, thereby increasing the freedom of design.

[0246] Figure 28 is an example of a six-view drawing of part 13, 2620. Figure 28(A) is a front view of part 13, 2620. Figure 28(B) is a rear view of part 13, 2620. Figure 28(C) is a left side view of part 13, 2620. Figure 28(D) is a right side view of part 13, 2620. Figure 28(E) is a plan view of part 13, 2620. Figure 28(F) is a bottom view of part 13, 2620.

[0247] The 13th part 2620 has a diameter 2620D of the upper and lower partial circles of the partial cylindrical portion 2622. The partial cylindrical section 2622 is connected to the fifth connecting section 2623 via a transition section.

[0248] The 13th component 2620 has a thickness 2620T1 including the support projection 2624, which is the thickness of the 13th component 2620 in the area through which the rotating shaft 2621 passes. The 13th part 2620 has a thickness 2620T2 between the upper and lower partial circles of the partial cylindrical portion 2622.

[0249] Figure 29 is an example of an explanatory diagram illustrating the rotation mechanism of the second alternative joint model 2600. Figure 29(A) is a cross-sectional perspective view of the second alternative joint model 2600, cut by a cross-section parallel to the longitudinal direction of the support slit 2614 and perpendicular to the rotation axis 2621. Figure 29(B) is a cross-sectional view of the second alternative joint model 2600 as seen from the cross-section of Figure 29(A).

[0250] In the state shown in Figure 29(A), the second alternative joint model 2600 has a rotational direction of the 13th part 2620. It is rotatable around the rotation axis 2621 toward 2620RD. During the rotational movement of the 13th component 2620, the support projection 2624 can slide in the sliding direction 2624SD while being housed within the support slit 2614.

[0251] As a result, the trajectory of the fifth connecting portion 2623 is a combination of rotational and sliding motion, and does not form a perfect circular orbit like the circle 2624C centered on the support projection as illustrated in Figure 29(B). Figure 29(B) shows an example of the trajectory of the rotational sliding movement of the fifth connection part 2623, specifically the trajectory of the movement of the center of the fifth connection part 2623, as illustrated in example 2623RT. Furthermore, in a configuration where the 13th component does not slide within the 12th component, it is also possible to design the movement trajectory of the 5th connecting portion 2623 to be a circular orbit.

[0252] During the rotational movement of the 13th part 2620, the support projection 2624 can slide within the support slit 2614, allowing for a flexible design of the range of motion of the 5th connecting part 2623, thus enabling flexible selection and design of the external shape of the 13th part 2620.

[0253] During the rotational movement of the 13th part 2620, the support projection 2624 can slide within the support slit 2614, allowing for a flexible design of the range of motion of the 5th connecting part 2623, thus enabling flexible selection and design of the external shape of the 13th part 2620.

[0254] In a modified version of the second alternative joint model 2600, the fifth connecting portion 2623 may be formed separately from the main body portion of the thirteenth part 2620. Such a fifth connecting portion 2623 may be formed having a shaft member that is inserted into a hole provided in the thirteenth part 2620. The shape of the portion inserted into the hole provided in the thirteenth part 2620 should be such that relative movement between the thirteenth part 2620 and the fifth connecting portion 2623 is hindered, for example, a polygonal shape, a cross shape, etc.

[0255] As a result, it becomes possible to select and replace the fifth connector 2623, which has a different shape, and attach it to the thirteenth component 2620, making it easier to increase the variations of the first external component 110 that can be connected.

[0256] In further additional or alternative modifications of the second alternative joint model 2600, the support projection 2624 may be formed separately from the main body portion of the 13th part 2620. Such a support projection 2624 may be formed having a shaft member that is inserted into a hole provided in the 13th part 2620. The shape of the portion inserted into the hole provided in the 13th part 2620 may be such that relative movement between the 13th part 2620 and the support projection 2624 is hindered, for example, a polygonal shape, a cross shape, etc.

[0257] As a result, the support projection 2624 can be formed from a different material than the 13th component 2620, such as a material with high wear resistance, making it easier to maintain the rotational movement of the 13th component 2620 stably for a longer period of time.

[0258] Example 3-3 Figure 41 is an example of an explanatory diagram illustrating an embodiment of the third alternative joint model 4100. Figures 41(A) and 41(F) are perspective views of the third alternative joint model 4100 from different directions. The third alternative joint model 4100 has a 15th part 4110, a 16th part 4120, a 17th part 4130, and an 18th part 4140.

[0259] Figure 41(B) is a perspective view of part 18, 4140. Figure 41(C) is a perspective view of part 17, 4130. Figure 41(D) is a perspective view of part 16, 4120. Figure 41(E) is a perspective view of part 15, 4110.

[0260] The 16th part 4120, the 17th part 4130, and the 18th part 4140 form the movable unit 4150. The movable unit 4150 has a rotation mechanism similar to that of the movable unit 1860, as described using Figure 18, etc.

[0261] The movable unit 4150 is housed in the sixth cavity 4112, which communicates with the ninth opening 4111, which is an opening provided in the fifteenth part 4110 along the longitudinal axis direction of the third alternative joint model 4100. The upper surface 4140TS of the housed part 18 4140 connects with the outer surface of part 15, forming the outer surface of the continuous third alternative joint model 4100.

[0262] The movable unit 4150, housed within the sixth cavity 4112 of the 15th part 4110, is held in place within the sixth cavity 4112 by frictional force. The frictional force that holds the movable unit 4150 within the sixth cavity 4112 is the frictional force generated at the contact point between the inner wall of the 15th part 4110, which forms the sixth cavity 4112, and the outer wall of the 18th part 4140, which extends in the longitudinal direction.

[0263] Examples 3-4 Figure 42 is an example of an explanatory diagram illustrating an embodiment of the fourth alternative joint model 4200. Figures 42(A) and 42(F) are perspective views of the fourth alternative joint model 4200 from different directions. The fourth alternative joint model 4200 has part 19 4201, part 20 4202, part 21 4220, and part 22 4230.

[0264] Figure 42(B) is a perspective view of part 19, 4201. Figure 42(C) is a perspective view of part 21, part 4220. Figure 42(D) is a perspective view of part 22, part 4230. Figure 42(E) is a perspective view of part 20, part 4202.

[0265] Part 19 4201 and Part 20 4202 are in contact with each other at the position of the dividing line 4210L, forming an exterior unit. Parts 4201 (No. 19), 4220 (No. 21), and 4230 (No. 22) form the movable unit 4150.

[0266] The second rotating shaft 4231 of the 22nd part 4230 is housed in the second rotating shaft holder 4205 of the 19th part 4201. The movable unit 4150 has a rotation mechanism similar to that of the movable unit 1860, as described using Figure 18, etc.

[0267] With the 21st part 4220 and the 22nd part 4230 housed in them, the 19th part 4201 and the 20th part 4202 house the insertion projection 4204 of the 19th part 4201 within the insertion recess 4203 of the 20th part 4202 to form the 4th alternative joint model 4200.

[0268] It should be noted that the present invention is not limited to the embodiments described above, and various modifications are included. For example, the embodiments described above are described in detail to make the present invention easier to understand, and are not necessarily limited to those having all the configurations described. Furthermore, it is possible to replace parts of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add configurations from other embodiments to the configuration of one embodiment. In addition, it is possible to add, delete, or replace parts of the configuration of each embodiment with other configurations.

[0269] Furthermore, the above-described embodiments disclose at least the configuration described in the claims. [Explanation of Symbols]

[0270] 100...Toy, 110...First external part, 120...Second external part, 130(200)...Joint model, 210...First part, 211...First opening, 212...First cavity, 220...Second part, 221...Rotation axis, 222...Partial cylindrical part, 223...First connection part, 230...Third part, 231...Second opening, 232...Second cavity, 240(300)...Movable unit, RD...Rotation direction, SD...Sliding direction

Claims

1. A first component having a first opening and a first cavity communicating with the first opening, A second part having a rotating shaft and a first connecting portion formed on at least a part of the outer circumference for connecting to a first external part, It has a second opening, a third opening, and a third component having a second cavity connecting the second opening and the third opening, The third part is, The second part is housed such that it is slidable within the first cavity and rotatable within the second cavity about the rotation axis. With the second component housed in the first component, the second component is exposed through the first and second openings. Joint model.

2. The first component is designed to house the third component within the first cavity so that the third component can slide within the first cavity. The third component accommodates the second component within the second cavity so that the second component can slide within the second cavity. Based on at least one of the following, The first component houses the second component so that it can slide within the first cavity. The joint model according to claim 1.

3. The second component, in accordance with its rotation, contacts the inner wall portion forming the second cavity of the third component at different circumferential positions on its outer circumference. The joint model according to claim 2.

4. At least a portion of the inner wall of the third component facing the second cavity maintains contact with the second component during the rotation of the second component. The joint model according to claim 3.

5. With the first external component connected to the first connecting portion, the range of rotation of the second component within the second cavity is, Contact between the edge of the second opening of the third component and the first connecting portion or the first external component, and Contact between the edge of the first opening of the first component and the first connecting portion or the first external component, Restricted based on at least one of the following: The joint model according to claim 4.

6. The first connecting portion of the second component has a protruding portion, The rotation of the second part in the first rotational direction is limited based on the contact between the protrusion and the edge of the first opening of the first part or the edge of the second opening of the third part. The rotation of the second part in a second rotation direction opposite to the first rotation direction is limited based on contact between the first external part and the edge of the first opening of the first part or the edge of the third opening of the third part. The joint model according to claim 5.

7. The third component is slidable between a first sliding position and a second sliding position within the first cavity. The range of rotation of the second part when the third part is in the first slide position is greater than the range of rotation of the second part when the third part is in the second slide position. The joint model according to claim 6.

8. The first component has a stopper projection that protrudes within the first cavity in a first sliding direction from the second sliding position toward the first sliding position, The aforementioned stopper protrusion is, With the third component in the second sliding position, it comes into contact with the second component. The movement of the second and third parts, in which movement in the second sliding direction from the first sliding position toward the second sliding position is restricted, The joint model according to claim 7.

9. The joint model has a guide slit extending in the direction in which the third component can slide, The first component forms at least the longitudinal edge of the first guide slit of the guide slit, The third component has a guide projection that moves within the guide slit as the third component slides between the first slide position and the second slide position within the first cavity, and that restricts the sliding movement in the direction of the first slide position based on contact with the short edge of the first guide slit of the guide slit. The joint model according to claim 8.

10. A toy having an articulated model according to any one of claims 1 to 9.

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