JPS6341036Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an ankle joint device for a doll that connects the feet and legs of the doll and allows the ankle to extend, contract, and twist.

Conventionally, various dolls with movable legs and arms have been known, but dolls that move on the ground, such as robot dolls, which have complex movements, or transform into vehicles, etc. Joint devices that move in a manner similar to humans are used throughout. However, conventional ankle joint devices that connect the foot and leg can only change the inclination angle of the foot and leg by simply extending or shortening the ankle. Although it could be moved straight, it was not possible to step diagonally with the feet, making it difficult to change direction or take realistic fighting poses.

This idea was made in view of the above circumstances, and its purpose is to align the horizontal columnar part that pivots the lower end of the leg almost horizontally around one end at the instep of the foot. By making it possible to slide and rotate the ankle, it is possible to perform two movements: stretching and twisting the ankle.
Moreover, it is an object of the present invention to provide an ankle joint device for a doll in which twisting motion is firmly guided by a vertical columnar portion integrated with a horizontal columnar portion.

Hereinafter, one embodiment of this invention will be described in detail based on the drawings. Figures 1 and 2 are perspective views showing an embodiment of the ankle joint device for dolls according to this invention, with the ankles retracted and extended, respectively, and Figure 3 is an exploded perspective view of the ankle joint device. be.

In the figure, an ankle joint device 1 is for the right leg of a robot doll, and a foot portion 2 with wheels (not shown) is shown.
is connected to the leg portion 3. The foot part 2 is made of a hollow frame-like body whose instep part is composed of three levels of upper, middle, and lower surfaces of different heights, and the wheels are partially exposed through the opening of the bottom surface. In addition, on the middle surface of the instep part, there is a semicircular arc groove 2a and a circular arc groove 2 with a larger diameter.
b are concentrically drilled. The leg portion 3 has a roughly rectangular cube shape, and its lower end is connected to a joint 4 to be described later.
It is pivotally supported by the horizontal columnar part 4a.

The joint 4 includes a horizontal columnar portion 4a, and a semicircular plate portion 4b and a vertical columnar portion 4c integrally formed near one end and the other end of the horizontal columnar portion 4a, respectively. The horizontal columnar portion 4a is attached to the leg portion 3 by a screw 5 passing through a boss 3a formed at the rear edge of the lower end of the leg portion 3.
can be attached to. The vertical columnar part 4c is inserted into the circular arc groove 2b at the same time when the semicircular plate part 4b is engaged with the semicircular groove 2a. And the semicircular plate part 4b
After applying washers 6 and 7 from below the foot portion 2, the vertical columnar portions 4c are permanently screwed using screws 6a and 7a. At this time, the washers 6 and 7 that come into contact with the inner wall surface of the foot portion 2 serve as slidable retainers, so that the joint tool 4 can be easily horizontally rotated on the middle surface. Further, the inner wall of the arcuate groove 2b serves as a sliding guide surface for the vertical columnar portion 4b.

Now, as shown in FIG. 1, when the leg 3 crosses the foot 2 almost perpendicularly, the leg 3
The front edge of the lower end rides on and engages with the upper surface of the foot part 2, and in this state the ankle is most compressed and is in a state without twisting. Even when the ankle is in its most contracted state, the leg 3 can be rotated around the semicircular plate 4b on the middle surface of the foot 2, as shown by the dashed line in FIG. As in, the ankle can be twisted.

Next, by rotating the leg portion 3 around the screw 5 and tilting it backward, the contracted ankle can be stretched. FIG. 2 shows a state in which the ankle is fully extended, and the back surface of the leg 3 is in contact with the middle surface of the foot 2. In this state, the ankle can be freely twisted to the left and right, as shown by the one-dot chain line and the two-dot chain line in FIG. In particular, when twisting the ankle, the vertical columnar part 4c of the joint 4 is guided along the arcuate groove 2b and restricts unnecessary vertical movement, so that the leg part 3 does not wobble on the middle surface of the foot part 2. It can be slid and rotated smoothly.

Furthermore, the twisting motion of the ankle when the ankle is fully extended is useful when the foot 2 is viewed as a power vehicle that can change direction when the robot doll is configured to change form into a transportation vehicle device or the like. , is an important operation. In other words, the powered vehicle not only moves straight;
This is because it becomes possible to steer left and right. Of course, even as a single robot doll, the fact that the ankles can be twisted regardless of the angle of expansion and contraction greatly contributes to the realization of realistic fighting poses that cannot be seen in conventional robot dolls.

In this way, the ankle joint device 1 having the above configuration
By using a joint device 4 consisting of a horizontal columnar part 4a, a vertical columnar part 4c, and a semicircular plate part 4b, the foot part 2 and the leg part 3 can be connected at the ankle, which can both extend and contract and twist. I can do it. Further, since the joint 4 can be connected with screws at four locations, the work is simple.

As explained above, this is an ankle joint device for a doll that connects the feet and legs of a doll. Consisting of a horizontal columnar part that slides and rotates, and a vertical columnar part that is integrally formed with the horizontal columnar part, engages almost vertically with an arcuate groove formed in the instep, and is guided in sliding contact with the arcuate groove. Therefore, by rotating the leg around the horizontal column, the ankle can be extended and contracted, and by rotating the horizontal column horizontally in sliding contact with the instep of the foot, the ankle can be twisted. Also, during twisting, the vertical columnar section is guided in sliding contact along the arcuate groove, so the horizontal columnar section can rotate reliably and smoothly.Furthermore, if the vertical columnar section is used to prevent it from coming off, It is also possible to prevent the horizontal columnar part from floating when it rotates, and this provides excellent effects such as being suitable for doll toys that require complex movements such as robot dolls.

[Brief explanation of drawings]

1 and 2 are perspective views showing the ankle joint device for a doll according to this invention in a retracted state and an extended state, respectively, and FIG. 3 is an exploded perspective view of the ankle joint device. DESCRIPTION OF SYMBOLS 1...Ankle joint device, 2...Foot part, 2a...Semi-circular groove, 2b...Circular groove, 3...Leg part, 3a...
Boss, 4...Joint tool, 4a...Horizontal columnar part, 4b
...Semi-circular plate part, 4c...Vertical columnar part, 5, 6a,
7a...screw, 6,7...washia.

Claims (1)

[Scope of utility model registration request] An ankle joint device for a doll that connects the feet and legs of a doll, which pivots the lower end of the leg and slides and rotates approximately horizontally around one end of the instep of the foot. and a vertical columnar part that is integrally formed with the horizontal columnar part, engages substantially perpendicularly with the circular arc groove formed in the upper part, and is guided in sliding contact with the circular groove. Ankle joint device for dolls.