JPH0324221Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a joint structure of a robot toy, etc.

(Prior art) Conventionally, the structure of the joints of this type of robot toy was such that the lower arm was directly fixed to the upper arm or was rotatable, which limited the range of movement and made the toy The problem was that the originality of the game was lost and the fun was cut in half, and a solution to this problem was desired.

(Purpose of the invention) The present invention was made in view of the above points, and in particular, the purpose is to propose a joint structure for robot toys, etc. that can expand the range of motion of the upper and lower arms. shall be.

(Means for achieving the object) In order to achieve the above object, the joint structure of the robot toy, etc. according to the present invention includes an upper arm and a lower arm rotatably attached to the upper arm via a joint member. A joint structure for a robot toy, etc., characterized by being composed of parts and meeting the following requirements.

(a) The joint member has a swelling portion at one end of the slide shaft, and a cylindrical pivot portion perpendicular to the slide shaft at the other end.

(b) The swelling part formed at one end of the slide shaft part of the joint member is slidably housed inside the upper arm part, and the cylindrical pivot part formed at the other end is housed inside the lower arm part. The formed support shaft is rotatably fitted.

(c) The upper arm mentioned above shall be rotatably connected to the shoulder.

(Operations and Effects of the Invention) As described above, according to the joint structure of the robot toy, etc. according to the present invention, the upper arm is rotatable with respect to the shoulder or the upper arm, respectively, by the support shaft, and the joint member Since the expanding protrusion at one end of the slide shaft is slidably housed inside the upper arm, the lower arm can be slid along the slide shaft to extend and contract, or to approach and separate, and , can be rotated around the slide shaft. Furthermore, the lower arm can be rotated or bent relative to the upper arm by fitting the cylindrical pivot joint formed at the other end of the slide shaft with the support shaft formed within the lower arm. . Moreover, since the upper arm is further rotatably connected to the shoulder, the range of rotation is further expanded. Therefore, you can enjoy unique and smooth operation.

(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 this robot toy A has a head 20 attached to the upper part of the body 1, and shoulder parts 3 on both sides of the body 1.
0, 30, and movable legs 50, 50 attached to the lower part.

The arm parts 40, 40 are formed by upper arm parts 40a, 40a and lower arm parts 40b, 40b, and the upper arm parts 40a, 40a and the lower arm part 40
b, 40b are connected via joint members 70, 70. The upper arms 40a, 40a are the shoulder parts 3 fixed to the body part 1 of the robot toy A.
0 and 30 via support shafts 41 and 41, and hand portions 60 and 60 are rotatably attached to the tips of the lower arm portions 40b and 40b.

As shown in FIG. 3, the joint members 70, 70 have a sliding shaft portion 71, a swelling portion 72 on a circular flange formed at one end of the shaft portion 71, and a through hole 73a formed at the other end. It is constituted by a cylindrical pivot portion 73. And this joint member 7
A swelling protrusion 72 on a circular flange provided at one end of the upper arm portion 40a, 70 is vertically movably fitted into a fitting recess 74 formed inside the upper arm portion 40a, 40a, and a tube provided at the other end. The recessed pivot portion 73 is fitted into a support shaft 75 protruding inside the lower arm portions 40b, 40b. As a result, as shown in Figure 4,
The upper arm parts 40a, 40a and the lower arm parts 40b, 40b can rotate around the slide shaft part 71, and can also be expanded and contracted by sliding the expansion protrusion part 72 inside the fitting recess 74. It becomes possible to freely rotate, bend or swing around 75, 75. moreover,
The joint members 70, 70 are located at the center of the slide shaft portion 71.
It can also be rotated 360°.

Next, FIGS. 5a and 5b show another example of the joint structure of a robot toy, etc. In this example, the joint member 70' is shaped like a circular flange stretched over one end of the slide shaft 71'. It has a bulging part 72', a cylindrical pivot part 73' having a through hole 73a' at the other end, and a pivot 76' pivotally attached to this pivot part 73'. It is constituted by a cylindrical pivot portion 78' having a through hole 78a' in the lower part. The swollen portion 72' of the joint member 70' is formed in a fitting recess 74' inside the upper arm portion 40a'.
The pivot portion 78' is rotatably fitted onto a support shaft 75' protruding inside the lower arm portion 40b. 40b' can swing freely in the left and right directions around the pivot 76' and the support shaft 75', and its movable range is expanded and its movements become finer, making it possible to express realism. Furthermore, the fitting recess 7
The lower arm portion 40b' can also be expanded and contracted by sliding the slide shaft portion 71' within the lower arm portion 40b'. In addition, using this slide shaft portion 71' as a fulcrum,
It can also be rotated 360°. Further, the upper arm portion 40a' can also rotate laterally around the support shaft 41' of the lower end portion 30'.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of the robot toy, Fig. 2 is a front view showing how the arms are connected and movable, Fig. 3 is a perspective view of the joint members, and Figs. 4 a and b are the arms. Explanatory diagram showing the sliding and rotating state, No. 5
The figures show another embodiment of the arm part, in which figure a is a front view in a partially broken state, and figure b is an enlarged view of the main part of figure a. Code A...Robot toy, 40...Arm, 40
a... upper arm part, 40b... lower arm part, 70... joint member, 71... slide shaft part, 72... swelling part,
73...Cylindrical pivot joint.

Claims (1)

[Claims for Utility Model Registration] A robot toy comprising an upper arm and a lower arm rotatably attached to the upper arm via a joint member, and having the following requirements: etc. joint structure. (a) The joint member has a swelling portion at one end of the slide shaft, and a cylindrical pivot portion perpendicular to the slide shaft at the other end. (b) The swelling part formed at one end of the slide shaft part of the joint member is slidably housed inside the upper arm part, and the cylindrical pivot part formed at the other end is housed inside the lower arm part. The formed support shaft is rotatably fitted. (c) The upper arm mentioned above shall be rotatably connected to the shoulder.