JPH038317Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a joint structure for a robot toy with improved joint parts.

(Prior art) Conventionally, the structure of joints in robot toys has been disclosed, for example, in Japanese Utility Model Application Publication No. 1983-51489 and Japanese Patent Publication No. 1983-1989.
There are devices such as those shown in Publication No. 41977, but since these two members can be rotated around two supporting shafts, the rotation of the members is not unnatural, and moreover, the rotation is large. can be done. However, since the two support shafts are formed in parallel, the two members must rotate in the same direction.

In this way, the above joint structure cannot be used when two members are rotated in different directions.

(Purpose of the invention) The present invention was developed in view of the above-mentioned points of view, and is intended to be applied to parts of the robot toy, such as the head and neck, the chest and waist, and the upper and lower arms. The object of the present invention is to propose a joint structure for a robot toy that can rotate a part of the robot toy in different directions via a joint member having a curved support rod.

(Means for achieving the purpose) In order to achieve the above purpose, the joint structure of the robot toy according to the present invention has the following requirements, which connects two members constituting the robot toy via a joint member. It is characterized by

(a) The above-mentioned joint member is provided with a fitting convex portion at one end of a curved support rod, and a support shaft perpendicular to the support rod at the other end.

(b) A fitting groove is formed in an annular shape around the outside of the fitting protrusion at one end.

(c) The fitting protrusion is housed inside a hollow part of one member of the robot toy, and the fitting groove is rotatably fitted into a fitting hole formed in the hollow part. .

(d) The support shaft at the other end shall be supported by a bearing portion formed inside the cavity of the other member of the robot toy.

(Operations and effects of the invention) According to the above structure, the fitting groove of the fitting protrusion is formed at one end of the joint member, and the support shaft is formed at the other end, so that one member constituting the robot toy is The one member can rotate around the fitting groove, and the other member can rotate around the support shaft. Since one member rotates around the annular fitting groove, and the other member rotates around the support shaft, the two members rotate in different directions. Therefore, it is very effective for connecting parts that require a mechanism that rotates in different directions, such as connecting parts such as the shoulder and arm, upper arm and lower arm of a robot toy. be.

Further, since the support rod is curved, its rotation range increases by the amount of the curve of the support rod.
Therefore, the range of movement of the two members constituting the robot toy is increased, and the modes of play of the robot toy can be further expanded.

(Example) Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In the figure, the symbol A indicates a robot toy, and as shown in FIG. and a leg portion 30. The leg portions 30 are upper thigh portions 30a, 30a attached to the torso 1.
and lower leg parts 30b, 30b rotatably attached to the upper leg parts 30a, 30a;
Legs 30c, 30c rotatably attached to 0b
The arm section 20 further includes an upper arm member 20a, a lower arm member 20b, and a hand section 20c. The upper arm member 20a and the lower arm member 20b are connected via a joint member 40.

In FIGS. 2 and 3, the upper arm member 20a combines divided bodies 85 and 86, and has a cavity formed inside and a fitting hole 60 formed by fitting grooves 87 and 87. It is formed.

The lower arm member 20b is formed by combining divided bodies 89 and 90, and bearing portions 91 and 92 are provided inside the hollow portion thereof.

The joint member 40 is formed by providing a fitting protrusion 42 at one end of a support rod 41 which is curved at approximately the center, and supporting shafts 43, 43 that are perpendicular to the support rod 41 at the other end.
A fitting groove 44 is formed in an annular shape around the outside of the fitting protrusion 42 .

The fitting protrusion 42 of the joint member 40 is housed inside the cavity of the upper arm member 20a, and the fitting groove 44 is rotatably fitted into the fitting hole 60 formed by the fitting grooves 87, 87. are combined. Further, the support shafts 43, 43 at the other end of the joint member 40 are connected to the lower arm member 20.
Bearing parts 91 and 92 formed inside the cavity part b
bearings.

Note that 93 is a mounting member provided at the lower part of the lower arm member 20b, and a through hole 95 is bored in the center of the mounting member 93, and the hand portion 2 is inserted into the through hole 95.
A protruding rod 96 provided at 0c is inserted and this hand portion 20c is fixed.

As described above, the fitting groove 44 of the fitting protrusion 42 provided at one end of the joint member 40 is inserted into the fitting hole 60 of the upper arm member 20a attached to the side surface of the torso 1, and the fitting groove 44 of the fitting protrusion 42 provided at one end of the joint member 40 is inserted into the fitting hole 60 of the upper arm member 20a attached to the side surface of the torso 1. Since the support shafts 43, 43 provided at the other end of the joint member 40 are fitted into the bearing portions 91, 92 provided at the joint member 40, the lower arm member 20b can be rotated in the front-rear direction, and the above-mentioned fitting It is also possible to rotate 360° using the protrusion 42 as a fulcrum.

Further, since the support rod 41 is curved, its rotation range becomes larger by the amount that the support rod 41 is curved. Therefore, the movable range of the upper arm member 20a and the lower arm member 20b is increased, and the play mode of the robot toy can be further expanded.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a robot toy, Fig. 2 is an exploded perspective view showing a state in which an upper arm member and a lower arm member are connected via a joint member according to the present invention, and Fig. 3 is an upper arm member and a lower arm member. FIG. 2 is an explanatory diagram of a state where the two are connected by a joint member. Code, A... Robot toy, 1... Torso, 10
...Head, 20a... Upper arm member, 20b... Lower arm member, 40... Joint member, 41... Support rod, 42
... Fitting protrusion, 43... Support shaft, 44... Fitting groove,
60... Fitting hole.

Claims (1)

[Claims for Utility Model Registration] A joint structure for a robot toy, which connects two members constituting the robot toy via a joint member, and is characterized by having the following requirements. (a) The above-mentioned joint member is provided with a fitting convex portion at one end of a curved support rod, and a support shaft perpendicular to the support rod at the other end. (b) A fitting groove is formed in an annular shape around the outside of the fitting protrusion at one end. (c) The fitting protrusion is housed inside a hollow part of one member of the robot toy, and the fitting groove is rotatably fitted into a fitting hole formed in the hollow part. . (d) The support shaft at the other end shall be supported by a bearing portion formed inside the cavity of the other member of the robot toy.