JPH0341757Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to a power transmission switching device for an actuated toy that switches power transmission to a plurality of types of actuating means.

(Background technology) Recent robot toys do not only move, but also repeatedly run and stop automatically, while also automatically rotating their antennas and shaking their heads as needed. There are some that perform the actions alternately.

However, in order for such toys to perform multiple actions alternately using a single power source, a number of power transmission switching devices corresponding to the number of types of actions are required, and the power transmission switching devices are necessary. The disadvantages were that the number of parts constituting the device increased, making the overall configuration complex and expensive.

(Purpose of the invention) This invention was made in order to eliminate the above-mentioned conventional drawbacks, and is an actuated toy that has a single and simple structure and can control power transmission to multiple actuating members. An object of the present invention is to provide a power transmission switching device.

(Summary of the invention) In order to achieve this object, a power switching device for an actuated toy according to this invention rotates by being powered by a power source through a switching gear part, and is provided integrally with the gear part. A worm/gear body is provided, which is moved under the control of a worm wheel that meshes with and rotates a worm part and a cam disk that rotates in conjunction with the worm wheel, and as the worm/gear body moves. Rotation of a power transmission mechanism including a worm wheel on a cam disk, in which the switching gear portion is provided in a relationship that alternately meshes with a plurality of driven gears that individually transmit power to a plurality of actuating members each performing a separate operation. A force-receiving gear portion is provided, thereby allowing a plurality of actuating members to be moved alternately.

(Effect of the invention) Therefore, according to the power transmission switching device for actuated toys according to this invention, there is no need for a number of power transmission switching devices corresponding to the number of types of actuating members that operate. Moreover, it has become possible to alternately move a plurality of actuating members with a simple configuration.

(Embodiment) The figure shows an embodiment of the present invention, and the one shown in Fig. 1 has a built-in power transmission switching device (described in Fig. 2 and below) according to the present invention, which will be described in detail later. This is a robot toy 1 that makes complex movements under the control of this power transmission switching device.

This robot toy 1 includes a body 2, a head 3 attached to the upper end of the body 2 so as to be able to swing horizontally (indicated by a chain line in FIG. 1), and a head 3 attached to the left shoulder of the body 2. an antenna 8 rotatably provided at the bottom of the body section 2; a pair of drive wheels 4, 4' (Fig. 2) fixed to a common shaft 7 rotatably provided at the bottom of the body section 2; and a driven wheel 9 (FIG. 2). A power source (described later) is provided in the body portion 2.
and a power transmission switching device (described later) are built in, and these power sources and power transmission switching devices cause the head 3 to swing its head, and the antenna 8
The robot toy 1 is made to travel by alternately rotating the drive wheels 4 and 4'.

Next, the specific configuration of the power transmission switching device according to the present invention and the power transmission mechanism including the device will be explained based on FIG. 2 and subsequent figures.

In FIG. 2, what is designated as a whole by the reference numeral 10 is a power transmission switching device according to an embodiment of the present invention.

This power transmission switching device 10 includes a driving gear 30 that applies rotational force from a power source 20 such as a motor,
The worm/gear body 40 is constantly applied with rotational force by the driving gear 30 and rotates, and is provided to be movable in the axial direction.
A worm wheel 50 is applied with a rotational force from 1 and rotates while attracting the worm/gear body 40 and moves it in the axial direction. A cam disk 60 that controls the axial movement of the worm/gear body 40 while rotating while meshing with the worm/gear body (Fig. 2), and a cam disk 60 that allows the head 3 to swing through parts to be described later. Driven gears 70 and 80 rotate and stop by alternately engaging and disengaging with the gear portion 42 as the gear 40 moves in the axial direction, and a drive wheel interlocked with the driven gear 70 (shown as an example of an operating member). 4,4′ and
It consists of an antenna (shown as an example of an operating member) 8 that is interlocked with a driven gear 80.

The driving gear 30 is connected to the output shaft 21 of the power source 20.
A pinion 22 fixed to
A rotational force is applied from the power source 20 through a crown gear 23 meshing with the crown gear 23 and a shaft 24 fixed to the crown gear 23 to rotate. This driving gear 3
0 is always in mesh with the gear portion 42 of the worm/gear body 40.

The worm/gear body 40 is connected to the gear portion 42
and a worm part 41 provided integrally with this gear part 42, and this worm/gear body 40 is pivotally supported so as to be movable in its axial direction (vertical direction in this embodiment). In addition, the worm part 41
The teeth are oriented in a left-handed thread.

Furthermore, driven gears 70 and 80 are rotatably supported at positions where they can alternately mesh with the gear portion 42 as the worm/gear body 40 moves in the axial direction. In the case of this embodiment, the driven gear 80 located on the upper side is located at a higher position than the driven gear 70 located on the lower side by an amount corresponding to the thickness of the gear portion 42 .

The lower driven gear 70 has the role of transmitting rotational force to the drive wheel 4 through a pinion 71 coaxial therewith and a crown gear 72 meshing therewith, thereby driving the drive wheel 4. On the other hand, the driven gear 8
0 is a small gear 80a that is integrated with this, and a rotating rod 81a that is erected at the center of a gear 81 that meshes with the small gear 80a.
It serves to rotate the antenna 8 via.

A support plate 90 is arranged at a certain distance upward from the position where each of these components is arranged, and the central part of the support plate 90 protrudes upward in a circular shape, and the back side thereof is concave upward. A shaft 51 is rotatably supported on the back side of the central portion. A worm wheel 50 that meshes with the worm portion 41 is fixed to the shaft 51, and a through hole 91 is formed in a portion of the support plate 90 located around the worm wheel 50. The worm wheel 50 is always meshed with the worm part 41 and rotates by being applied with rotational force by the worm part 41. In addition, in this case, the worm part 4
1 is rotating counterclockwise when looking up from below, so a force is applied to the worm wheel 50 like screwing a left-hand thread, but the worm wheel 5
0 cannot move in the vertical direction, a force that tends to move upward is always applied to the worm/gear body 40 that is slidably supported on the shaft 43.

Further, a small gear 52 that rotates together with the worm wheel 50 is fixed to a coaxial shaft 51 located apart from the worm wheel 50.

Further, a cam disk 6 is provided above the center of the support disk 90.
0 is rotatably supported. This cam board 60
has a U-shaped longitudinal section, and a crown gear 61 that meshes with the small gear 52 is formed around the entire circumference at the lower end of its outer peripheral wall. On the lower surface side of the cam disc 60 located inside the crown gear 61, protrusions as a cam portion 62 are formed concentrically over a certain angle, and the starting end portion of the cam portion 62 (see Fig. 2). The clockwise end (when viewed from above) forms an inclined portion 62a that gradually becomes higher.

In addition, a radial gear part 63 is formed as a power transmission control part over approximately 160 degrees on the outer peripheral side surface of the cam disc 60, and the starting end of this gear part 63 (in the upper part in FIG. 2) is formed as a power transmission control part. The clockwise end when looking down from above) overlaps the terminal end of the cam portion 62 (counterclockwise end when looking down from above in FIG. 2) by approximately 20 degrees in phase. On the other hand, the gear portion 63
A protruding portion 64 having a slightly larger diameter is formed on the outer peripheral side surface of the cam disc 60 located on the opposite side.

An eccentric member 100 is rotatably supported on the support plate 90 near the rear of the cam disk 60. This eccentric member 100 includes a small gear portion 10
1 and a cam portion 102 integrally provided above the small gear portion 101, and the small gear portion 101 is in a positional relationship in which it can mesh with the gear portion 63. Then, the cam portion 102
A pin 103 is provided upright at a position near the tip of the pin 103, and an arcuate notch 102a is provided at the opposite end of the pin 103.
is provided.

Furthermore, a cover 110 is attached on the support plate 90 to cover the cam plate 60 from above. The rear part of the cover 110 is cut out in an arc shape, and a cylindrical body 111 is erected at the upper center of the cover 110. This cylindrical body 11
A rotary shaft 112 is rotatably housed in the rotary shaft 112, and an arm 113 is attached to the lower end of the rotary shaft 112.
is fixed horizontally. The tip of this arm 113 protrudes to the rear of the cover 110, and the lower end thereof has a long groove 113a along its longitudinal direction.
is formed. A pin 1 is provided upright in the cam portion 102 of the eccentric member 100 in the long groove 113a.
03 are fitted and arranged. Therefore, the eccentric member 1
When 00 is rotated once by the cam disc 60, the arm 113 rotates back and forth once, and the rotating shaft 112 also rotates forward and backward by one round trip.

On the other hand, a pin 112a is erected at an eccentric position at the rear of the upper end surface of the rotating shaft 112, and a pin hole 3a formed on the lower side of the head is fitted into the pin 112a. 3 is installed. Therefore, when the rotating shaft 112 rotates, the head 3
It also rotates and changes direction.

Next, the operation of this embodiment configured as above will be explained.

First, a switch (not shown) turns on the power source 20.
is activated and the cam disk 60 is rotated, and the starting end of the cam portion 62 has not yet reached the upper end surface of the worm portion 41 of the worm/gear body 40;
In addition, when the terminal end of the gear portion 63 passes through the small gear portion 101 of the eccentric member 100 and is removed, the outer peripheral surface of the protruding portion 64 of the cam disc 60 is aligned with the notch 102a of the cam portion 102 of the eccentric member 100. The eccentric member 100 does not rotate, the portion of the cam portion 102 with the pin 103 and the rotating lever 113 face toward the rear of the robot toy 1, and the head 3 faces toward the front. It is in.

Therefore, at this time, the worm/gear body 40 is not prevented from rising by the cam part 62, and is in a state of being pulled up by the worm wheel 50 due to the above-mentioned lifting force (as shown by the chain line in FIG. 3). ), the gear portion 42 meshes with the driving gear 30 (not shown in FIG. 3) and the driven gear 80. Therefore, at this time, although the antenna 8 is rotating, the drive wheels 4, 4' do not move, and the robot toy 1 does not travel, but is in a stopped state.

When the cam disk 60 further rotates counterclockwise from this state, the inclined portion 62a of the cam portion 62 begins to come into sliding contact with the upper end of the worm portion 41, and the worm/gear body 40 is thereby pushed by the cam portion 62. Gradually descend. Then, when the inclined portion 62a has passed, the worm/gear body 40 is completely lowered, and
This time, the gear part 42 is the driving gear 30 and the driven gear 70.
It is in a state where it is completely engaged. At this time,
The drive wheels 4, 4' rotate and the robot toy 1 is in a running state, but the antenna 8 is in a stopped state.

Then, when the cam disc 60 further rotates, it reaches the terminal end of the cam part 62, and the worm part 41 is released from the sliding contact of the cam part 62 with respect to its upper surface.
The worm/gear body 40 rises again, and the gear part 42
is disengaged from the driven gear 70 while maintaining its meshing state with the driving gear 30, and then meshes with the driven gear 80 again.

Further, when the cam disk 60 rotates, the starting end of the gear portion 63 moves to the small gear portion 10 of the eccentric member 100.
1 and mesh with each other, thereby eccentric member 10
When 0 starts rotating, the head 3 starts shaking its head as described above.

From this state, the cam disc 60 further rotates, and the terminal end of the gear part 63 becomes the small gear part 101 of the eccentric member 100.
By the time the eccentric member 100 passes through
As the cam disc 60 rotates, the outer circumferential surface of the protruding portion 64 of the cam disc 60 comes into sliding contact with the inner circumferential surface 102a of the cam portion 102 of the eccentric member 100, and the orientation of the eccentric member 100 returns to its original state.

In other words, during this process, the head 3 shakes its head twice and returns to the state facing forward.

After that, the same operation as described above will be repeated.

Since this embodiment is configured as described above,
As the worm/gear body 40 moves, the gear part 4
2 meshes with the driven gears 70 and 80 alternately, so that the two operating members interlocked with the driven gears 70 and 80, namely the drive wheels 4 and 4' and the antenna 8, can be operated alternately, and the single and With a simple configuration, the power transmission of a plurality of actuating members can be switched, making it highly useful as a power transmission switching device for toys.

Therefore, when applied to a robot toy like this embodiment, it is possible to effectively switch the transmission of power from one power source without complicating the internal structure, thereby making the robot toy It is possible to perform multiple types of operations alternately, such as running/stopping and rotating/stopping the antenna.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention, among which:
Fig. 1 is a perspective view of a robot toy incorporating a power transmission switching device for actuated toys according to the present invention, Fig. 2 is an exploded perspective view of the power transmission switching device for actuated toys according to the present invention, and Fig. 3 is its main part. FIG. 3 is an explanatory diagram showing a power transmission switching portion. 1... Robot toy (actuated toy), 4,4'...
Drive wheel (operating member), 8... Antenna (operating member), 20... Power source, 30... Drive gear, 40
... Worm/gear body, 41 ... Worm part, 4
2... Gear part, 50... Worm wheel, 60
... cam disk, 62 ... cam section, 70, 80 ... driven gear.

Claims (1)

[Scope of utility model registration request] The worm/gear body, which is interposed between the driving side and the driven side and consists of a switching gear part that constantly meshes with the driving gear and a worm part integrated with the switching gear part, is mounted so as to be movable in the axial direction. is provided on a cam disk which rotates by transmitting an axial moving force from the worm wheel and the rotational force of the worm wheel as the worm portion transmits the rotational force to the worm wheel that is constantly meshed with the worm portion. This is done under the control of the contact pressure of the cam part,
As the worm/gear body moves, the switching gear portion is provided in a relationship that alternately meshes with a plurality of driven gears that individually transmit power to a plurality of actuating members that operate independently, respectively. A power transmission switching device for an actuated toy, characterized in that the cam disc is provided with a gear portion that receives the rotational force of the power transmission mechanism including the worm wheel.