JPH026066B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drive device for imparting motion to an arbitrary object.

There are cases where it is necessary to attract people's attention in store advertisements, amusement parks, etc. In that case, it is effective to make a suitable object perform an unusual motion that is easily noticed.

In addition, in a general drive device for giving rotational motion to an arbitrary object, a drive source such as a motor and the arbitrary object are connected with a straight axis to transmit rotation. Because it is straight, it usually only plays the role of transmitting rotation, and has little other use.

In view of the above-mentioned points, an object of the present invention is to provide a drive device that can give rotational motion to an arbitrary object, as well as motion that is easily noticeable to the public or motion other than mere rotational motion. .

This objective can be achieved as follows.

That is, a curved shaft, a support member that rotatably supports one end of the shaft, and the shaft supported by the support member is rotated to impart axis rotation and curved portion rotation to the shaft. The drive device is operated by using a shaft drive device and a frame body that encloses the above-mentioned shaft of the portion protruding from the support member and does not rotate even when the shaft rotates on the axis, but moves in a curved manner following the rotation of the curved portion. It composes.

Hereinafter, the present invention will be explained in detail using drawings showing embodiments thereof.

FIG. 1 is a perspective view of a driving device according to an embodiment of the present invention used as a display device. A display device is a device whose main role is to attract people's attention. This display device has a shaft 2 that is rotatably supported by a base 1 serving as a support member and that is curved in a spiral shape. The part of the shaft 2 supported by the base 1 and the part below that part are linear,
Not curved. A power transmission means (not shown) such as a gear is provided on the straight part of the shaft 2 below the base 1, and this power transmission means is connected to the output shaft of the motor 3 fixed on the base 1. (not shown) is transmitted to the shaft 2. As a result, the shaft 2 rotates around its own axis (hereinafter, this rotation is referred to as axis rotation), and at the same time, the above-mentioned curved portion also rotates, resulting in a so-called spiral movement (hereinafter, this rotation of the shaft 2 is referred to as axis rotation). This rotation is called curved part rotation).

The shaft 2 is covered with a frame 4 over almost its entire length. This frame body 4 includes a ring 5 having a relatively thin plate thickness.
It is made up of a large number of. Ring 5 is
As shown in FIG. 2 and FIG. 3, which is a front view thereof, a hole 6 for passing the shaft 2 is made in the center, and two circular protrusions 7, 7' are provided on one plane at 180° symmetrical positions. are provided, and the other plane has protrusions 7,
Arc-shaped grooves 8, 8' are provided at positions perpendicular to 7' to fit into the arc portions of these projections. When forming the frame 4 with the ring 5, as shown in FIG. Stack up. Once a predetermined number of rings have been stacked in this way, the mounting base 9 is fixed to the uppermost ring 5a. Any fixing method may be used, such as screwing or gluing. As shown in FIG. 1, the mounting base 9 is a rectangular flat plate with a hole 11 in the center thereof for passing the shaft 2 through. Note that the ring RI fixed to the shaft 2a prevents the mounting base 9 from slipping up.

As shown in FIG. 1, a doll 12 imitating the shape of a human upper body is mounted on the mounting base 9. The inside of the body 13 of this doll 12 is a space, and the head 14 is rotatably attached to the body 13. With this structure, in FIG.
will fit inside the doll's body 13. The straight part 2a of the shaft is thus housed inside the doll's body.
A transmission means (not shown) such as a gear is provided between the head 14 and the head 14, so that the rotation of the shaft 2 along the axis appears as the oscillating rotation of the head 14.

The action will be explained below.

First, in FIG. 1, when the motor 3 is operated, the shaft 2 performs the above-described axis rotation and curved portion rotation via a transmission device (not shown) disposed under the base 1. Axis rotation of shaft 2 is performed through center hole 6 of ring 5.
Since this is carried out inside the ring, even if the shaft 2 rotates along its axis, the ring 5 itself, and therefore the frame 4 itself, do not rotate. In this way, since the frame 4 does not rotate itself, when the shaft 2 rotates at the curved portion at the same time as the axis rotates, the shaft 2 relative to a certain position on the circumference of the frame 4
The curved state of the shaft 2 changes from time to time, and unless some measure is taken for the frame 4, rotation of the shaft 2 becomes virtually impossible. The reason why the upper and lower adjacent rings 5 in the frame body 4 are connected to each other so as to be tiltable by the projections 7, 7' and the grooves 8, 8' is to eliminate this inconvenience.

To be more specific, in FIG. 4, the highest ring 5
a and the next ring 5b have protrusions 7, 7' and grooves 8,
8', that is, the rings 5b and 5c tilt relative to each other around an axis 7''a extending perpendicular to the plane of the paper in the figure.Similarly, the rings 5b and 5c are centered around an axis 7''b parallel to the plane of the paper. more ring 5
c and ring 5d are each tilted about the axis 7''c. In this way, ring 5b is tilted about the axis perpendicular to the page, while ring 5b is tilted about the axis 7''c.
Since c tilts around the axis parallel to the plane of the paper, if the curvature of the shaft 2 from ring 5a to ring 5d changes due to rotation of shaft 2, rings 5b and 5c will be perpendicular to each other. As a result, the rings 5a to 5d can be moved in a curved manner by following the rotation of the curved portion of the shaft 2. Since the relationships among the rings 5a to 5c are the same for the individual rings constituting the frame body 4, the frame body 4 can be moved to follow the rotation of the curved portion of the shaft 2 by the above-mentioned tilting operation of the individual rings 5. can. Hereinafter, such a movement will be referred to as a curving movement of the frame 4. In addition, in order to faithfully represent the rotation of the curved portion of the shaft 2 as a curved movement of the frame 4,
The thinner the ring 5 is, the more advantageous it is.

In this way, in this embodiment, the frame body 4 is caused to follow the rotation of the curved portion of the shaft 2 in a similar unusual curved motion, so that it can easily attract people's attention. If the helical shape of the shaft 2 is changed in various ways, the effect will be even more remarkable.

The effects of the rotation of the curved portion of the shaft 2 and the corresponding bending motion of the frame 4 are as described above, but as described above, when the shaft 2 rotates the curved portion, the axis also rotates at the same time. . Although each ring 5 tilts as the curved portion of the shaft 2 rotates, it remains stationary without being affected by the rotation of the axis of the shaft 2. Therefore, in FIG. 1, the mounting base 9 also does not rotate regardless of the rotation of the axis of the shaft 2, so that the body 13 of the doll mounted thereon always faces in the same direction. However, the axial straight portion 2a (Fig. 4) protruding from the mounting base 9 is subject to axial rotation (R).
The head 14 of the doll is connected to the straight shaft portion 2a of the doll via a transmission device (not shown).
makes a swinging motion separately from the body 13.

This, together with the curved movement of the frame 4, further enhances the eye-catching effect. Note that the object to be moved by utilizing the axial rotation of the axial straight portion 2a is not limited to the head 14. For example, it may be an arm.

In addition to using the rotation of the shaft 2 to move a suitable member on the mounting base 9, a drive source such as an electric motor or the like may be provided on the mounting base 9 to move the member. . However, in that case, it is necessary to supply power to operate the drive source.
In this embodiment, for the convenience of power supply, as shown in FIGS. 2 and 3, each ring 5 is
Four through holes 15 are provided in the through hole 15.
A power supply line is led from under the base 1 (FIG. 1) through the doll 12. Even if the shaft 2 rotates along its axis and rotates its curved portion, the apple 5 itself does not rotate, so there is no worry that the wire passed through the through hole 15 will be twisted. Note that the above-mentioned power supply line may be used not only for driving the electric motor but also for lighting a lamp, for example.

As shown in FIG.
The reason for this provision is to prevent the risk of fingers being pinched by fitting the thin-walled cylinder 17 made of elastic material such as plastic. Incidentally, if this cylinder 17 is given a suitable pattern, it will be effective in attracting people's attention. In that case, axis 2
It would be even more effective if the pattern is provided taking into consideration that the cylinder 17 itself does not rotate even when the axis of the cylinder 17 rotates and the curved part rotates.

FIG. 5 shows a modification of the ring for forming the frame 4. In FIG. This ring 18 is formed in a generally cylindrical shape, and this itself is no different from the ring 5 described above. The difference is that the protrusions 7, 7' of the ring 5
Instead of the grooves 8, 8' of the ring 5, upper brackets 21, 21' are provided.
When two rings 18 are stacked, the lower brackets 19, 19' of the upper ring and the upper brackets 21, 21' of the lower ring are stacked,
Furthermore, they will be pivotally supported to each other by pins 22. In terms of functionality, there is no difference from Ring 5.

FIG. 6 shows yet another modification of the ring. The ring 23 according to this example has a generally spherical outer periphery, and a lower portion thereof is a recess 29 having a curvature that can fit into the outer periphery. Also, at the top of the outer periphery there is a seventh
As shown in the figure, a small projection 24 is provided, and the small projection 24 is provided in the recess 29 as shown in FIG.
A groove 25 into which 4 can be fitted is formed. When two rings 23 are stacked, the small protrusion 24 of the lower ring fits into the groove 25 of the upper ring, as shown in FIG. 9, thereby preventing the rings from rotating about the axis 2. Prevented.

As shown in the figure, the groove 25 is provided over an appropriate length in the radial direction, and the two stacked rings are arranged along the outer circumferential surface and the curved surface of the recess within the range in which the small protrusion 24 can move within the groove 25. It can be moved by sliding. The upper ring can also be tilted in a 360° direction about the small protrusion 24 of the lower ring. These sliding and tilting movements allow the frame 4 to make a curved movement following the rotation of the curved portion of the shaft 2.

The ring 23 has a through hole 26 provided at its center through which the shaft 2 passes, and a small diameter portion 27 is formed at the bottom of the hole.
The shaft 2 is received by the shaft 2. This small diameter portion 27 may be provided above the through hole 26. The lower part of the through hole 28 through which a wire such as a power supply line is passed is finished with a large diameter so that misalignment will not occur even when the ring 23 slides or tilts. The ring 23 may have a shell structure with an internal cavity as shown in FIG. 10 as long as it includes a spherical outer shell, a small protrusion 24, a fitting groove 25, and a small diameter portion 27. . Further, the lower spherical recess 29 does not necessarily have to be formed into a spherical shape, and may simply be formed with an opening. However, in this case, the peripheral edge 31 forming the aperture will be in contact with the lower ring.

FIG. 11 shows another embodiment of the invention.
In this embodiment, the frame body 4 is comprised of a cylindrical member formed in a so-called bellows shape. When the curved portion of the shaft 2 rotates, the bellows-shaped cylindrical member follows the rotation while expanding and contracting and performs a curved motion. The fact that this cylindrical member is free from the axial rotation of the shaft 2 is the same as in the previous embodiment.

FIG. 12 shows still another embodiment of the present invention. In the figure, the fact that a curved shaft 2 is attached to a base 1 and that the shaft 2 is wrapped in a frame 4 consisting of a ring 5 is the same as in the previous embodiment. The difference is that
First links 32a and 3, one each extending in opposite directions to the two upper rings 5a and 5b.
2b is attached via a ball joint 33. Also, the middle rings 5c, 5d, 5e
A thin disk 34c, 3 made of a rubber elastic body
Another difference is that 4d and 34e are fixed.

Second links 35a and 35b are rotatably attached to the tips of the first rings 32a and 32b by ball joints 36, and these second links 3
An object 37 imitating a human hand (hereinafter simply referred to as a hand) is fixed to the tips of 5a and 35b. Second
Joining links 39a and 39b extending from a bracket 38 fixed to the uppermost ring of the frame 4 are connected with pins at intermediate positions between the links 35a and 35b. An object 41 imitating a human face (hereinafter simply referred to as a face) is fixed to the upper surface of the bracket 38.

In the mechanism described above, all parts except the hands 37 and the face 41 are covered with clothes 42. This clothes 42 is made of the disks 34c, 34d, 34e.
It is sewn around the outer periphery of the A doll is thus formed.

Since this embodiment consists of the above configuration,
If you rotate axis 2, especially the curved part, the doll will move hand 3.
While swinging 7, the user twists the waist formed by the discs 34c to 34e, making a movement as if dancing. At this time, the clothes 42 are not affected by the axis rotation of the shaft 2, so they will not be twisted or tangled.

In this way, according to this example, it is possible to extract only the bending motion that is not affected by axis rotation as power from any ring, and moreover, depending on the curved shape of the shaft 2, it is possible to extract power for various movements. .

As described above with reference to several embodiments, according to the present invention, rotation of the curved portion is obtained by rotating the curved shaft, and the frame is similarly curved by following this movement. By making it move, it can attract the viewer's attention. Furthermore,
Since the frame is not constrained by the axis rotation of the shaft, a mounting base is provided at one end of the frame.
When some device (for example, a doll) is mounted on the mount, the device itself remains stationary regardless of the axis rotation, but only a part of the device (for example, the head) is rotated along the axis. This makes it possible to move the image using the ``movement'' function, and as a result, it becomes possible to attract even more attention. Furthermore, since the frame 4 itself does not rotate, the bending motion of the frame 4 can be extracted through the links 32a, 32b, etc., and various motive powers can be obtained depending on the curved shape.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention, Fig. 2 is a perspective view showing one embodiment of the present invention;
3 is a plan view of the ring, FIG. 4 is an explanatory diagram of the operation of the ring, and FIG. 5 is a diagram showing a first modification of the ring.
6 is a side sectional view showing a second modification of the ring, FIG. 7 is a top view of the modification, FIG. 8 is a bottom view of the ring, FIG. 9 is an explanatory diagram of the operation of the modification, and FIG. FIG. 10 is a side sectional view showing a third modification of the ring, FIG. 11 is a perspective view showing another embodiment of the present invention, and FIG.
FIG. 2 is a side view showing still another embodiment of the present invention. 2... Shaft, 1... Base (supporting member), 3... Motor (shaft drive device), 4... Frame.

Claims (1)

[Claims] 1. A curved shaft, a support member that rotatably supports one end of the shaft, and a shaft that imparts axis rotation and curved portion rotation to the shaft by rotating the shaft supported by the support member. a drive device;
A drive device comprising a frame body that surrounds the above-mentioned shaft of the portion protruding from the support member and does not rotate even when the shaft rotates along the axis, but moves in a curved manner following the rotation of the curved portion.