HK1088265A - Morpholoidally deforming toy - Google Patents

Description

Form-changing toy

Technical Field

The present invention relates to a form-changing toy which changes from a robot toy of a certain form to a robot toy of another form.

Background

Japanese patent laid-open No. 9-10442 and Japanese patent laid-open No. 9-28933 disclose form-transforming toys transformed from the form of vehicles and animals into the existing structure of humanoid robot toys. In addition, various transformable toys are also being sold in the market. In these conventional transformable toys, various joint structures are used to change the form.

Patent document 1 Japanese patent laid-open No. Hei 9-10442

Patent document 2 Japanese patent laid-open No. Hei 9-28933

However, in the configuration of the conventional form-changing toy, when the humanoid robot toy is changed into a robot toy of another form, there is a problem that it is difficult to make the overall shape and size compact. In particular, when the deformed form is completely different, most of the humanoid robot toy needs to be housed inside the deformed armor (exterior) case. In this case, the humanoid robot toy needs to be more compact and housed inside the armor case.

Disclosure of Invention

The present invention aims to provide a shape-changing toy which can change a humanoid robot toy into a compact shape.

Another object of the present invention is to provide a transformable toy which can be transformed between a marine nursing-type robot toy and a humanoid robot toy.

It is still another object of the present invention to provide a transformable toy in which the number of parts constituting the outer package of the marine nursing-type robot toy can be reduced.

It is still another object of the present invention to provide a transformable toy which can use a part of an armor of a marine mammal-like robot toy as a part of a humanoid robot toy, or as a shield, or as a weapon.

Another object of the present invention is to provide a transformable toy capable of transforming the tail of the marine nursing-type robot toy into a compact form.

Another object of the present invention is to provide a transformable toy which can be transformed between a bird robot toy such as a bird and a humanoid robot toy.

The present invention is directed to a transformable toy which is transformed between a humanoid robot toy and other robot toys. In the present invention, a pair of legs of a humanoid robot toy has: a knee joint position connecting mechanism respectively connected between the thigh part and the shank part; an ankle joint position connecting mechanism connecting the lower leg portion and the foot portion. The knee joint position connecting mechanism is configured to enable the calf of the lower leg part to be adjacent to the rear side of the upper leg part, and the ankle joint position connecting mechanism is configured to enable the sole of the foot part to be adjacent to the back surface of the body part of the humanoid robot toy. Thus, the part below the knee of the leg can be bent along the rear side of the thigh and the back side of the trunk of the humanoid robot toy. Therefore, when the humanoid robot toy is transformed into another robot toy, the long legs of the humanoid robot toy do not become a great obstacle to the transformation, and the transformed robot toy can be made compact in form. In particular, when the form of the deformed robot toy has a sheath and at least a part of the robot toy needs to be housed in the sheath, the form of the deformed robot toy can be made more compact.

The knee joint position connecting mechanism may include links (rotatably connected about axes) connected to the thigh and the lower leg by revolute pairs. In this case, the length of the link is determined to be such that the calf can abut the rear side of the thigh. By using such a link and revolute pair, the lower leg portion can be made to abut (including contact and approach) the rear side of the thigh portion with certainty.

The ankle joint position connecting mechanism may be configured to connect the lower leg portion and the foot portion via a revolute pair, and may be configured to substantially linearly align the lower leg portion and the foot portion. With this configuration, the feet can be reliably brought into contact with (including contact with and proximity to) the back surface of the body of the humanoid robot toy.

The present invention can be applied to a transformable toy which changes the form between a marine mammal robot toy such as whales and a humanoid robot toy. The marine mammal robot toy has a head, a trunk, and a tail. And the humanoid robot toy has a head portion, a trunk portion, a pair of arm portions, and a pair of leg portions. A pair of legs of a humanoid robot toy comprises: a knee joint position connecting mechanism respectively connected between the thigh part and the shank part; an ankle joint position connecting mechanism connecting the lower leg portion and the foot portion. The knee joint position connecting mechanism is configured to enable the calf of the lower leg part to be adjacent to the rear side of the upper leg part, and the ankle joint position connecting mechanism is configured to enable the sole of the foot part to be adjacent to the back side of the trunk part of the humanoid robot toy. The pair of legs of the humanoid robot toy are housed in the head of the marine nursing type robot toy in a state where the calf is adjacent to the rear side of the thigh and the sole of the foot is adjacent to the back surface of the trunk of the humanoid robot toy. In addition, the head of the humanoid robot toy is accommodated in the trunk of the marine mammal robot toy. The head and at least a part of the trunk of the marine mammal robot toy can be divided when the marine mammal robot toy is transformed into a humanoid robot toy, so that the pair of legs and the head of the humanoid robot toy stored inside are exposed to the outside. The tail of the marine mammal robot toy is configured to be attached to the back of the body of the humanoid robot toy in a foldable manner.

With this configuration, the leg portion having a large shape can be easily housed inside the marine nursing robot toy. Further, if the head and a part of the body of the marine nursing robot toy are configured to be separable, not only the legs of the human robot toy can be easily housed, but also the operation of taking out the legs can be easily performed. In addition, by forming the tail portion of the marine nursing-type robot toy in a foldable structure, the tail portion can be used as a part constituting a part of the human-shaped robot toy without detaching the tail portion.

Further, if a part of the body section and a part of the arm section of the humanoid robot toy are configured as a part of the body section of the marine mammal type robot toy, the number of parts required for forming the armor of the marine mammal type robot toy can be reduced.

Further, a part of the trunk of the marine mammal type robot toy may be constituted by a pair of trunk constituting housing members which are separated from each other in a state where the robot toy is viewed from the front side after being divided, and a housing member connecting mechanism which connects the pair of trunk constituting housing members to the trunk of the robot toy so as to be displaceable in the left and right directions by approaching to each other to constitute a part of the trunk. Thus, if a configuration is adopted in which the pair of body part constituting outer jacket members are connected to the body part of the humanoid robot toy by the outer jacket member connecting mechanism, the pair of body part constituting outer jacket members can be used as a protection device (shield, helmet, etc.) of the humanoid robot toy.

In addition, the head of the marine nursing-type robot toy may include a pair of head constituting housing members that are separated from each other in a left-right direction in a state where the humanoid robot toy is viewed from the front, and that constitute a part of the head of the marine nursing-type robot toy by being brought close to each other, and a housing member connecting mechanism that connects the pair of head constituting housing members to the trunk of the humanoid robot toy so as to be displaceable left and right. Thus, if the pair of head configuration casing members are connected to the trunk of the humanoid robot toy by the casing member connecting mechanism, the pair of head configuration casing members can be used as a protection device (shield, armor, etc.) of the humanoid robot toy.

The pair of head portion-constituting case members may have a shape in which an opening portion for exposing a part of the pair of completely folded leg portions is formed. In this case, the head of the marine nursing robot toy needs to further include a closing member for closing the opening. The closing element is preferably designed as an element which can be used as a weapon or shield of a humanoid robot toy. By configuring the pair of head portion-constituting housing members so as to form such an opening, the pair of leg portions can be moved in and out through the opening, and the deformation work can be made more smooth. By using the closing member for closing the opening as a weapon or a shield, the member necessary for constituting the marine mammal type robot toy can be used as an ornament of the humanoid robot toy. Also, in the case where the marine nursing type robot toy has a detachable pair of pectoral fins, the pair of pectoral fins can also be used as a weapon of the human robot toy. Thus, the utilization rate of the components can be improved.

The present invention can be applied to a transformable toy which changes its form between a bird robot toy such as a bird and a humanoid robot toy, and can achieve a compacting effect. In this case, the bird robot toy has a head portion, a trunk portion, a tail portion, and wing portions, and the humanoid robot toy has a head portion, a trunk portion, a pair of arm portions, and a pair of leg portions. In this case, the pair of legs of the humanoid robot toy has: a knee joint position connecting mechanism respectively connected between the thigh part and the shank part; an ankle joint position connecting mechanism for connecting the lower leg part and the foot part, wherein the knee joint position connecting mechanism is configured to enable the lower leg belly of the lower leg part to be adjacent to the rear side of the upper leg part, and the ankle joint position connecting mechanism is configured to enable the sole of the foot part to be adjacent to the back side of the trunk part of the humanoid robot toy. In addition, the pair of legs of the humanoid robot toy constitute the tail of the bird robot toy in a state where the calf is adjacent to the rear side of the thigh and the sole of the foot is adjacent to the back surface of the trunk of the humanoid robot toy. The head of the humanoid robot toy constitutes an attachment structure of the head of the humanoid robot toy that can be housed in the body of the bird robot toy. In addition, the wing part of the bird robot toy is configured to be foldable and is installed on the back of the body part of the human robot toy.

Drawings

Fig. 1 is a front view of the transformable toy of the present embodiment in the case where it is a humanoid robot toy.

Fig. 2 is a rear view of the transformable toy of the present embodiment in the case where it is a humanoid robot toy.

Fig. 3 is a partially omitted right side view of the transformable toy of the present embodiment when it is a humanoid robot toy.

Fig. 4 is a schematic plan view of the transformable toy according to the embodiment in the case where it is a marine mammal robot toy.

Fig. 5 is a schematic bottom view of the transformable toy according to the embodiment in the case where the transformable toy is a marine mammal robot toy.

Fig. 6 is a schematic right side view of the transformable toy according to the embodiment in the case where it is a marine mammal robot toy.

Fig. 7 is a diagram showing an initial stage when the marine mammal robot toy is transformed into a humanoid robot toy.

Fig. 8 is a diagram showing one of the processes of transforming the marine mammal robot toy into the humanoid robot toy.

Fig. 9 is a diagram showing one of the processes of transforming the marine mammal robot toy into the humanoid robot toy.

Fig. 10 is a diagram showing one of the processes of transforming the marine mammal robot toy into the humanoid robot toy.

Fig. 11 is a diagram showing one of the processes of transforming the marine mammal robot toy into the humanoid robot toy.

Fig. 12(a) to (F) are views showing the state of deformation of the leg members in the process of the leg being put in the marine mammal robot toy to the state of the leg being the human robot toy, respectively.

Fig. 13 is a diagram showing one of the processes of transforming the marine mammal robot toy into the humanoid robot toy.

Fig. 14 is a diagram showing one of the processes of transforming the marine mammalian robot toy into the humanoid robot toy.

Fig. 15 is a front view of the humanoid robot toy of embodiment 2 of the present invention.

Fig. 16 is a right side view of the humanoid robot toy of embodiment 2 of the present invention.

Fig. 17 is a plan view of the human robot toy according to embodiment 2 of the present invention transformed into a bird robot toy.

Fig. 18 is a side view of the humanoid robot toy of embodiment 2 of the present invention transformed into a bird robot toy.

Fig. 19(a) to (D) are views each showing a head deformation process when the human robot toy is transformed into the bird robot toy.

Fig. 20 is a schematic perspective view showing a state in which the head is accommodated in the trunk portion.

Fig. 21 is a view showing a state of the head accommodated in the trunk portion.

Fig. 22(a) to (D) are diagrams each showing a leg portion deforming process.

Detailed Description

Hereinafter, an example of an embodiment of the form-changing toy of the present invention will be described in detail with reference to the drawings. Fig. 1, 2, and 3 are front, rear, and partially omitted right side views of the transformable toy of the present embodiment when it is a humanoid robot toy 1. In fig. 3, components that affect the illustration are removed for easier understanding. Fig. 4, 5, and 6 are a schematic plan view, a schematic bottom view, and a schematic right side view of the marine mammal robot toy 2 as the shape-changing toy according to the present embodiment. In this form-changing toy, the main part of the humanoid robot toy 1 is housed inside the marine mammal robot toy 2.

The humanoid robot toy 1 shown in fig. 1 to 3 has a head portion 3, a trunk portion 5, a pair of arm portions 7 and 9, and a pair of leg portions 11 and 13. The head 3 of the humanoid robot toy 1 is connected to the trunk 5. The tail 4 of the marine nursing robot toy 2 is attached in a folded state to the rear (back) of the trunk 5.

The pair of arm portions 7 and 9 of the humanoid robot toy 1 are attached to both shoulders of the trunk portion 5 by joint structures, not shown, respectively. The pair of arm portions 7 and 9 have upper arm portions 7a and 9a, lower arm portions 7b and 9b, and hand portions 7c and 9c, respectively. The joint structure not shown has a known structure that allows the upper arm portions 7a and 9a to move forward and backward and leftward and rightward. The joint structure, not shown, between the upper arm portions 7a and 9a and the lower arm portions 7b and 9b has a known structure as follows: the small arm portions 7b and 9b may be moved in the front-rear direction with respect to the upper arm portions 7a and 9a, or the small arm portions 7b and 9b may be rotated in the front-rear direction within a predetermined angular range around the lower end portions of the upper arm portions 7a and 9 a. Further, the joint structure has a known structure as follows: the small arm portions 7b and 9b are made rotatable within a prescribed angular range with respect to the upper arm portions 7a and 9a, centering on a center line passing through the centers of the upper arm portions 7a and 9 a. On the outer sides of the small arm portions 7b and 9b, guard arms 15 and 17 are provided, respectively. The armguards 15 and 17 are provided with attachment portions 14 and 16, and the attachment portions 14 and 16 are used for detachably attaching the pectoral fins 10 and 12 of the marine mammal type robot toy 2.

Furthermore, shoulders 19 and 21 are rotatably attached to both shoulders of the trunk 5 of the humanoid robot toy 1. When the shoulder pads 19 and 21 are transformed from the humanoid robot toy 1 to the marine mammal type robot toy 2 around the rotation axis not shown, they are rotated along the upper arm portions 7a and 9a of both arm portions from the state shown in fig. 1. In addition, the armrests 15 and 17, the shoulders 19 and 21, and a part of the pair of arm portions 7 and 9 constitute a part of the armor of the trunk of the marine nursing-type robot toy 2.

The pair of leg portions 11 and 13 has: thigh portions 11a and 13a, lower leg portions 11b and 13b, and foot portions 11c and 13c attached to the trunk portion 5 by joint structures not shown. The pair of leg portions 11 and 13 has: knee joint position connecting mechanisms 23, 25 respectively connected between the thigh part and the shank part; ankle joint position connecting mechanisms 27, 29 connecting the lower leg portion 11b and the foot portion 11 c. Since the pair of leg portions 11 and 13 have the same structure, the structure of one leg portion 11 will be described below with reference to fig. 3. The knee joint position connecting mechanism 23 includes a link 23c connected to the thigh portion 11a and the lower leg portion 11b via revolute pairs 23a and 23b, respectively. The revolute pairs 23a and 23b connect both end portions of the link 23c to the thigh portion 11a and the lower leg portion 11b so as to be rotatable about the axis, respectively. The length and shape of the link 23c of the knee joint position connecting mechanism 23 are determined to be a length at which the calf of the calf portion 11b can abut (including a case where both are in contact and a case where both are close to each other) the rear side of the thigh portion 11 a. By using such a link 23c and the revolute pairs 23a and 23b, the lower leg portion 11b can be reliably brought into abutment with the rear side of the thigh portion 11 a.

The ankle joint position connecting mechanism 27 is configured to connect the lower leg portion 11b and the foot portion 11c via the revolute pair 31. Therefore, the leg 11c rotates within a predetermined angular range around the revolute pair 31. The ankle position connecting mechanism 27 is configured to be able to substantially linearly align the lower leg portion 11b and the foot portion 11 c. Specifically, as shown in fig. 2, the shafts constituting the revolute pairs 31 and 33 are fixed to angle bars 35 and 37 in the shape of "コ", and plate-like portions 11e and 13e provided integrally with the foot main bodies 11d and 13d are attached to these shafts so as to be rotatable at a predetermined angle, wherein the angle bars 35 and 37 are rotatable with respect to the lower leg portions 11b and 13b centering on a center line extending in the extending direction of the lower leg portions 11b and 13 b. The predetermined angle is an angle at which the lower leg portion 11b and the foot portion 11c can be substantially linearly arranged.

In the body portion 5 of the humanoid robot toy 1, a pair of head constituting casing members 20 and 22 which can be displaced left and right are attached by revolute pairs 24 and 26 constituting a casing member connecting mechanism, the pair of head constituting casing members 20 and 22 constituting the lower half portion 18 of the head 8 of the marine mammal type robot toy 2. In a state where the humanoid robot toy 1 is viewed from the front, the pair of head constituting case members 20 and 22 are separated from each other in the left-right direction, and constitute a part (lower half 18) of the head 8 of the marine mammal type robot toy 2 by approaching each other. As shown in fig. 7, an upper half 38 of a head 8, which will be described later, of the marine mammalian robot toy 2 is detachably configured. The upper half 38 of the head 8 is configured to cover the opening 40 of the lower half 18 of the head 8 of the marine mammalian robot toy 2, and the lower half 18 of the head 8 is configured by a pair of head-constituting housing members 20 and 22. The upper half 38 of the head 8 is secured to the lower half 18 by a snap-fit arrangement.

Further, a pair of body configuration housing members 30 and 32 are connected to the body portion 5 of the humanoid robot toy 1 by housing member connection mechanisms 34 and 36, and the pair of body configuration housing members 30 and 32 are separated from each other in a right-left direction in a front view and pass through a portion (a tail-side abdomen portion) 28 that is close to each other and constitutes the body portion of the marine lactating robot toy 2. The housing part connecting mechanisms 34 and 36 have the following structures: the two connecting rods 34a, 34b and 36a, 36b are connected in a freely rotating manner by means of revolute pairs 34c and 36 c. The outer ends of the links 34a and 36a are connected to the back of the trunk 5 by a link 41 (fig. 14) described later. The outer ends of the links 34b and 36b are connected to the inner wall portions of the pair of body portion constituting case members 30 and 32 via a revolute pair, not shown. By supporting the pair of body portion constituting housing members 30 and 32 by such housing member connecting mechanisms 34 and 36, the pair of body portion constituting housing members 30 and 32 completely surround the head portion 3 of the humanoid robot toy 1 in the case of the marine nursing type robot toy 2, and the head portion 3 is completely exposed in the case of the humanoid robot toy 1.

As shown in fig. 3, the tail 4 attached in a folded state to the back surface of the body 5 of the humanoid robot toy 1 is composed of three components 4a to 4 c. The constituent members 4a and 4b are rotatably connected by a revolute pair 4d, and the constituent members 4b and 4c are rotatably connected by a revolute pair 4 e.

Next, a process of transforming the marine mammal robot toy 2 into the humanoid robot toy 1 will be described with reference to fig. 7 to 14. First, as shown in fig. 7, the upper half 38 of the head 8 and the pectoral fins 10 and 12 are removed from the marine mammalian robot toy 2. An inserted portion which can be inserted into the hole 7d or 9d provided on the hand of the humanoid robot toy 1 is integrally provided on the back surface of the upper half portion 38. The upper half 38 can be used as a weapon or shield of the humanoid robot toy 1 when inserted into the hole 7d or 9d provided on the hand of the humanoid robot toy 1. Further, when the pectoral fins 10 and 12 are inserted into the holes 7d or 9d provided in the hands 7c and 9c of the humanoid robot toy 1, they can be used as weapons such as a knife of the humanoid robot toy 1.

Then, as shown in fig. 8, the shoulder guard members 19 and 21 are opened, and further, as shown in fig. 9, the pair of arm portions 7 and 9 are opened, and then the pair of head construction shell members 20 and 22 constituting the lower half portion 18 of the head 8 of the marine nursing type robotic toy 2 are opened to the left and right. Then, as shown in fig. 10 and 11, the folded left and right leg portions 11 and 13 are unfolded. Fig. 12(a) to (F) show the state of deformation of the members constituting the leg 11 in the process from the state of storage in the marine mammalian robot toy 2 to the state of changing the leg 11 into the leg of the human mammalian robot toy 1.

After the two leg portions 11 and 13 are spread apart, as shown in fig. 13, a pair of trunk portion constituting housing members 30 and 32 constituting a part (a trunk-side abdomen portion) 28 of the trunk portion of the marine mammalian robot toy 2 is opened to the left and right. Finally, the tail 4 is folded as shown in fig. 14. As shown in fig. 14, the constituent member 4c of the tail portion 4 is attached to the trunk portion 5 by a pivot link 41. One end of the pivot link 41 is rotatably attached to the trunk 5 via a pivot pair 42, and the other end of the pivot link 41 is rotatably attached to the component 4c via a pivot pair 43. The pivotal link 41 faces upward in the marine mammal robot toy 2, and when the humanoid robot toy 1 is used, the pivotal link 41 is turned 180 degrees around the revolute pair 43 and faces downward. By providing such a pivot link 41, even if the length of the tail 4 is long, the position of the folded tail 4 can be lowered, and therefore the folded tail 4 does not give the human robot toy 1a significantly unnatural appearance.

Fig. 15 to 22 are views for explaining the configuration of a configuration-changing toy according to another embodiment of the present invention for changing the configuration between a humanoid robot toy and a bird robot toy. Fig. 15 and 16 are front and right side views of the humanoid robot toy 101, and fig. 17 and 18 are top and side views of the modified bird robot toy 102. In this embodiment, the same components as those in the embodiment shown in fig. 1 to 14 are denoted by reference numerals obtained by adding 100 to the reference numerals shown in fig. 1 to 14, and detailed description thereof is omitted. The difference from the foregoing embodiment shown in fig. 1 to 14 is that: on the back of the trunk 105 of the humanoid robot toy 101, folding wings 151 and 152 are mounted using a pivotal connection structure, i.e., hinges 153 and 154; the head 103 of the humanoid robot toy 101 is housed in the body 105 of the humanoid robot toy 101; there is no armor case specifically for the bird robot toy 102.

In addition, the pair of legs 111 and 113 of the humanoid robot toy 101 also has: a knee joint position connecting mechanism 123 for connecting the thigh portions 111a, 113a and the lower leg portions 111b, 113b, respectively; an ankle joint position connecting mechanism 127 connecting the lower leg portions 111b, 113b and the foot portions 111c, 113 c. The knee joint position connecting mechanism 123 is configured to allow the calf of the lower leg portion 111b, 113b to abut against the rear side of the thigh portion 111a, 113a, and the ankle joint position connecting mechanism 127 is configured to allow the sole of the foot portion 111c, 113c to abut against the rear surface of the trunk portion 105 of the humanoid robot toy 101. In a state where the calf is adjacent to the rear side of the thigh portions 111a, 113a and the soles of the leg portions 111c, 113c are adjacent to the back surface of the body portion 105 of the humanoid robot toy 101, the pair of leg portions 111 and 113 of the humanoid robot toy 101 constitute the tail portion of the bird robot toy 102.

A process of transforming the humanoid robot toy 101 into the bird robot toy 102 will be described with reference to fig. 19 to 21. The wings 151 and 152 are spread laterally from the state shown in fig. 19 (a). In the following drawings, the blade is not shown. First, the door 105a provided on the back of the body 105 and opened when the head 103 is housed is opened. Then, the head 103 is rotated backward, and the head 103 is accommodated in the body 105 through the opening closed by the door 105 a. According to the schematic diagrams of fig. 20 and 21, the head 103 of the human robot toy 101 and the head 108 of the bird robot toy 102 are integrated in a combined state, and rotate together about the shaft 161 provided on the body 105. The door 105a is rotatably supported by the body 105 via a shaft 162 provided to the body 105 a. As shown in fig. 19(B) and (C), the head 108 of the bird robot toy is rotated with the door 105a opened, and after the head 103 is housed inside the body 105, the door 105a is closed as shown in fig. 19 (D). By closing the door 105a, the door 105a becomes a stopper, and the head 103 is prevented from coming out.

Then, as shown in fig. 22(a) to (D), the leg portions 111 and 113 are folded as in the previous embodiment. In fig. 22, the arm 101 is moved away from the predetermined position because the presence of the arm interferes with the illustration of the structure. In fig. 22(D), the leg portion 111c of the leg portion 111 is not adjacent to the back surface of the body portion 105. However, in this embodiment, the sole of the foot portion 111c of the final leg portion 111 is in contact with the back surface of the trunk portion 105. In this way, when the pair of legs 111 and 113 is bent to be transformed into the bird robot toy 102, the legs 111 and 113 of the human robot toy 101 constitute the tail of the bird robot toy 102. As a result, the size of the bird robot toy 102 can be made compact.

When the bird robot toy 102 is transformed into the humanoid robot toy 101, the procedure opposite to the above-described procedure may be performed.

According to the present invention, when the humanoid robot toy is transformed into another robot toy, the long legs of the humanoid robot toy do not become a great obstacle to the transformation, and therefore the transformed robot toy can be made compact in form. In particular, according to the present invention, when the form of the deformed robot toy has a sheath and at least a part of the robot toy needs to be housed in the sheath, the form of the deformed robot toy can be made more compact.

Claims (10)

1. A form-changing toy for changing form between a humanoid robot toy and other form robot toys,

the pair of legs of the humanoid robot toy has: a knee joint position connecting mechanism respectively connected between the thigh part and the shank part; an ankle joint position connecting mechanism connecting the lower leg portion and the foot portion;

the knee joint position connecting mechanism is configured to enable a calf of the lower leg portion to abut against a rear side of the thigh portion, and the ankle joint position connecting mechanism is configured to enable a sole of the foot portion to abut against a rear surface of the body portion of the humanoid robot toy.

2. The transformable toy according to claim 1, wherein the knee joint position connecting mechanism is constituted by a link connected to the thigh and the calf respectively through a revolute pair, and the link has a length determined such that the calf can abut on the rear side of the thigh.

3. The morphing toy of claim 1,

the ankle joint position connecting mechanism is configured to connect the lower leg portion and the foot portion via a revolute pair, and to be able to substantially linearly align the lower leg portion and the foot portion.

4. A shape-changing toy capable of changing the shape between a marine mammal robot toy such as whale and a humanoid robot toy is characterized in that,

the marine mammal robot toy has a head, a trunk and a tail;

the humanoid robot toy has a head portion, a trunk portion, a pair of arm portions, and a pair of leg portions;

the pair of legs of the humanoid robot toy has: a knee joint position connecting mechanism respectively connected between the thigh part and the shank part; an ankle joint position connecting mechanism connecting the lower leg portion and the foot portion;

the knee joint position connecting mechanism is configured to enable a calf of the lower leg part to be adjacent to the rear side of the thigh part, and the ankle joint position connecting mechanism is configured to enable a sole of the foot part to be adjacent to the back side of the human-shaped robot toy body part;

a pair of legs of the humanoid robot toy are housed in the head of the marine nursing type robot toy in a state where the calf is adjacent to a rear side of the thigh and a sole of the foot is adjacent to a back surface of a trunk of the humanoid robot toy;

the head of the humanoid robotic toy is received within the trunk of the marine mammalian robotic toy;

the head portion and at least a part of the body portion of the marine nursing-type robot toy are configured to be dividable such that the pair of leg portions and the head portion of the humanoid robot toy housed therein are exposed to the outside when the marine nursing-type robot toy is transformed into the humanoid robot toy; the tail of the marine mammal type robot toy is configured to be foldable and mounted on the back of the trunk of the humanoid type robot toy.

5. The morphing toy of claim 4,

a part of the trunk portion and a part of the arm portion of the humanoid robot toy constitute a part of the trunk portion of the marine mammal type robot toy.

6. The morphing toy of claim 4,

the body portion of the marine mammal type robot toy is partially composed of a pair of body portion constituting housing members which are separated from each other in a left-right direction in a state where the humanoid robot toy is viewed from the front and which constitute a part of the body portion by being brought close to each other, and a housing member connecting mechanism which connects the pair of body portion constituting housing members to the body portion of the humanoid robot toy so as to be displaceable left and right.

7. The morphing toy of claim 6,

the head of the marine nursing-type robot toy is configured to include a pair of head configuration housing members that are separated from each other in a left-right direction in a state where the humanoid robot toy is viewed from the front and that constitute a part of the head of the marine nursing-type robot toy by being brought close to each other, and a housing member connection mechanism that connects the pair of head configuration housing members to the trunk of the humanoid robot toy so as to be displaceable left and right.

8. The morphing toy of claim 7,

the pair of head-constituting housing members are configured to have a shape forming an opening for exposing a part of the pair of completely folded legs, and the head of the marine mammal robot toy further includes a closing member closing the opening;

the enclosing member is configured to be used as a weapon or shield for the humanoid robot toy.

9. The morphing toy of claim 8,

the marine nursing type robot toy has a detachable pair of pectoral fins configured to be used as a weapon of the human type robot toy.

10. A transformable toy capable of transforming a form between a robot toy such as a bird and a humanoid robot toy,

the bird robot toy has a head, a trunk, a tail, and wings;

the humanoid robot toy has a head portion, a trunk portion, a pair of arm portions, and a pair of leg portions;

the pair of legs of the humanoid robot toy has: a knee joint position connecting mechanism respectively connected between the thigh part and the shank part; an ankle joint position connecting mechanism connecting the lower leg portion and the foot portion;

the knee joint position connecting mechanism is configured to enable a calf of the lower leg portion to be adjacent to the rear side of the upper leg portion, and the ankle joint position connecting mechanism is configured to enable a sole of the foot portion to be adjacent to the back side of the trunk portion of the humanoid robot toy;

a pair of legs of the humanoid robot toy constitute the tail of the bird robot toy in a state in which the calf is adjacent to a rear side of the thigh and a sole of the foot is adjacent to a back surface of the trunk of the humanoid robot toy;

the head of the humanoid robot toy constitutes the head mounting structure of the humanoid robot toy which can be housed within the trunk of the bird robot toy;

the wing part of the bird robot toy is configured to be foldable and attached to the back of the body part of the human robot toy.