JPH0226548Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a robot toy, and particularly to a robot toy with improved knee joints and ankle joints.

Generally, a robot toy has a structure as shown in FIG. 1, for example. That is, it is composed of a torso 20 coupled to the head 10, arms 30, 30 supported by the torso 20, and legs, the legs being rotatably supported by the torso 20. upper leg 4
0, 40, lower leg parts 50, 50 rotatably supported by the upper leg parts 40, 40, and the lower leg part 50,
50 and a foot portion 60 rotatably supported.

A knee joint part is provided between the upper leg part 40 and the lower leg part 50, and the lower leg part 50, 50 and the foot part 60, 6 are provided.
There is an ankle joint between 0 and 0.

The knee joint in a conventional robot toy has a first support member provided at the lower part of the upper leg and a second support member provided at the upper part of the lower leg, arranged coaxially, and a support member provided between them. The structure is such that the shaft is rotatably mounted.

Therefore, there is a problem in that the rotation of the upper leg relative to the lower leg or the lower leg relative to the upper leg is limited only to the direction around the support axis, and the range of movement thereof is narrowed. be.

Furthermore, in the ankle joint of conventional robot toys, the structure between the lower part of the lower leg and the foot is similar to that of the above-mentioned knee joint. Rotation relative to the feet is limited to the front and rear directions around these support shafts, and there is a problem in that it is difficult to stand the robot toy upright on the horizontally inclined surfaces of the left and right legs.

The present invention was developed in view of the above circumstances, and its purpose is to increase the range of rotation between the upper leg and the lower leg, and to increase the range of movement between the lower leg and the foot. To provide a robot toy which can be oriented not only in the front-back direction but also in the left-right direction.

That is, the robot toy according to the present invention has a knee joint member that connects the upper leg and the lower leg of the robot toy, and an ankle joint member that connects the lower leg and the foot of the robot toy. The joint member has a first support shaft and a second support shaft integrally provided in parallel with the support shaft.

(b) The first support shaft is rotatably supported by first support parts provided on both sides of the upper leg of the robot toy.

(c) The second support shaft is rotatably supported by second support parts provided on both sides of the upper part of the lower leg of the robot toy.

(d) The ankle joint member is housed within the foot and has a third support shaft and a fourth support shaft that are orthogonal to each other.

(e) The third support shaft passes through a vertical escape hole formed on both sides of the foot and is rotatably supported by a third support provided on both sides of the lower leg. is being done.

(f) The fourth support shaft is rotatably supported by a fourth support part provided in the front and rear of the foot of the robot toy.

It is characterized by meeting the following requirements.

Hereinafter, one embodiment of the present invention will be described in detail.

In the figure, the upper leg 40 is divided into parts 40a and 40b.
The upper thigh part 40 is divided into two parts, and first support parts 41a and 41b are provided below the upper thigh part 40, that is, in the lower part of the interior of each of the divided bodies 40a and 40b, which are formed in a protruding manner. Further, a support hole 42 for supporting a support shaft provided in the body part 30 (see FIG. 1) is provided through the upper part of the upper thigh part 40, that is, in the upper part of each of the divided bodies 40a and 40b.

On the other hand, the lower leg portion 50 has two divided bodies 50a and 50b.
Second support portions 51a and 51b are provided above the divided lower leg portion 50, that is, above the inside of each of the divided bodies 50a and 50b to protrude.

The upper leg part 40 and the lower leg part 50 are connected via a knee joint member 70. That is, the first support portions 41a, 41b and the second support portion 51
A knee joint member 70 is attached between the two parts a and 51b. The knee joint member 70 has an upper leg portion 40 at its upper end.
first support parts 41a, 41b provided on both sides of
It has a first support shaft 71 that can be rotatably supported,
Furthermore, it has a second support shaft 72 integrally arranged in parallel with the first support shaft 71 at the other end. This second
The support shaft 72 can be rotatably supported by second support parts 51a and 51b provided on both sides of the upper part of the lower leg part 50.

Further, the lower part of the lower leg part 50, that is, the divided body 5
Third support portions 52a and 52b are provided on both sides of the lower portions of the interiors of Oa and 50b to protrude.

On the other hand, the foot portion 60 is divided into two by dividing bodies 60a and 60b, and a pair of fourth supporting portions 61a, 61b, 62a, and 62b are provided inside the foot portion 60 to protrude from each other. This fourth support portion 61a, 61b,
An ankle joint member 80 is attached between 62a, 62b and the third support portions 52a, 52b, and the lower leg portion 50 and foot portion 60 are connected via the ankle joint member 80.

The ankle joint member 80 is housed in the foot portion 60 and has a third support shaft 81 that can be rotatably supported by the third support portions 52a and 52b. A fourth shaft integrally arranged perpendicular to the axis 81
It has a support shaft 82 of. This fourth support shaft 82 is connected to the fourth support portions 61a and 61 provided on the foot portion 60.
It can be rotatably supported by b, 62a, and 62b.

Note that reference numerals 63a and 63b are escape holes for allowing the third support shaft 81 to protrude from the surface of the foot portion 60 and to perform rotational movement by the third support portions 52a and 52b provided on the lower leg portion 50. It is.

Next, the knee joint member 70 and the ankle joint member 8
0 installation will be explained.

The first support portions 41a and 41b are coupled to each other so as to rotatably support the first support shaft 71 of the knee joint member 70 (see FIG. 3).

Next, the fourth support portions 61a, 61 of the foot portion 60
ankle joint member 8 at each of b, 62a, and 62b.
The fourth support shaft 82 of No. 0 is coupled so as to be rotatably supported (see FIGS. 4 and 5). When combined in this way, the foot 60 is assembled as shown in FIG.
The tip of the third support shaft 81 of the ankle joint member 80 is made to protrude from the escape holes 63a, 63b.

As mentioned above, the upper leg 40 and the foot 6 are connected to each other.
0, that is, between the second support shaft 72 of the knee joint member 70 and the third support shaft 81 of the ankle joint member 80. In other words, the second support shaft 72 of the knee joint member 70 is
Furthermore, the third support shaft 81 of the ankle joint member 80 is rotatably supported by the second support parts 51a, 51b of the lower leg part 50.
to support it so that it can rotate freely. This completes the assembly of the legs as shown in FIG. and,
The support hole 42 of the upper leg part 40 is connected to a support shaft provided in the body part of the robot toy.

Therefore, the upper leg portion 40 is rotatable about the support hole 42 relative to the body 20 in the directions of the front and rear arrows A and B. Further, the lower leg portion 50 is swingable relative to the upper leg portion. That is, the first support parts 41a, 41b of the upper leg part 40, the second support shaft 72 of the knee joint member 70, and the second support parts 51a, 51b of the lower leg part 50.
It can be rotated freely between. Therefore, the upper leg portion 40 and the lower leg portion 50 are able to swing freely in the front and rear directions.

Further, the foot portion 60 is indicated by arrow C with respect to the lower leg portion 50.
Rotatable in the D direction (back and forth direction), and arrow E,
It is rotatable in the F direction (left-right direction). That is, the third support portions 52a, 52b of the lower leg 50 and the third support shaft 81 of the ankle joint member 80 are rotatable. This allows the foot portion 60 to freely rotate in the arrow direction (back and forth direction), and the ankle joint member 8
0's fourth support shaft 82 and the foot section 60's fourth support section 6
1a, 61b, 62a, and 62b are rotatable, so that the foot portion 60 can be freely rotated in the directions of arrows E and F (left and right directions).

As is clear from the above description, in the robot toy according to the present invention, the upper leg and the lower leg are connected via a knee joint member having a first support shaft and a second support shaft parallel to each other, Furthermore, since the lower leg and the foot are connected via an ankle joint member having a third support axis and a fourth support axis that are orthogonal to each other, The range of motion for rotation in the front-back direction is large, and the rotation between the lower leg and the foot is not only in the front-back direction but also in the left-right direction. It is possible to improve the ability of the robot toy to stand upright on a surface, and to improve the ability of the left and right legs to stand upright on a surface inclined in the left-right direction.

Note that the present invention is not limited to robot toys, but can also be applied to other animal toys, doll toys, etc.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view showing an example of a robot toy, Fig. 2 is an exploded perspective view showing an embodiment of the present invention, Fig. 3 is a perspective view showing the upper leg and knee joint members, and Fig. 4 is a perspective view showing an example of the robot toy. FIG. 5 is a perspective view showing the joint state of the foot and the ankle joint member; FIG. 6 is a perspective view showing the joint state of the leg; FIG. be. Code 40... upper leg, 41a, 41b... first
support part, 50...lower leg part, 51a, 51b...
Second support part, 52a, 52b... Third support part, 61a, 61b, 62a, 62b... Fourth support part, 70... Knee joint member, 71... First support shaft, 72... ... second support shaft, 80 ... ankle joint member, 81 ... third support shaft, 82 ... fourth support shaft.

Claims (1)

[Claims for Utility Model Registration] A robot toy that has a knee joint member that connects the upper leg and the lower leg, and an ankle joint member that connects the lower leg and the foot, and that satisfies the following requirements: Characteristic robot toy. (a) The knee joint member has a first support shaft and a second support shaft that is integrally provided in parallel with the support shaft. (b) The first support shaft is rotatably supported by first support parts provided on both sides of the upper leg of the robot toy. (c) The second support shaft is rotatably supported by second support parts provided on both sides of the upper part of the lower leg of the robot toy. (d) The ankle joint member is housed within the foot and has a third support shaft and a fourth support shaft that are orthogonal to each other. (e) The third support shaft passes through a vertical escape hole formed on both sides of the foot and is rotatably supported by a third support provided on both sides of the lower leg. is being done. (f) The fourth support shaft is rotatably supported by a fourth support part provided in the front and rear of the foot of the robot toy.