JPH041994Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is used for walking and running toys that walk using walking leg members when standing and run using drive wheels when lying down. The present invention relates to a power unit for walking and running toys.

(Prior Art) The present applicant previously proposed a novel walking/running toy (Utility Application No. 59-70917, unpublished at the time of this application).

(Problem to be solved by the invention) However, in the walking/running toy that was filed earlier, the components for walking and running, such as the power source, gears, drive shafts, walking leg members, etc., are not included in the toy body. Since it was directly assembled in pieces, disassembly and reassembly were troublesome, and there were problems in that workability in the manufacturing process was poor.

This invention was made with the aim of solving the above problems.

(Means for Solving the Problems) In order to solve the above problems, this invention is a single unit by incorporating the power source, gears, drive shafts, walking leg members, etc. for walking and running into the machine frame. This is a power unit for walking and running toys.

(Function) The power unit for a walking/running toy of this invention incorporates multiple parts necessary for providing two types of movement (walking and running) into a single machine frame, so it can be assembled into the toy body, disassembled, and reused. Assembly has become extremely easy, and failures have been reduced.

(Example) FIGS. 1 to 6 are structural explanatory diagrams of a power unit for a walking/running toy according to the present invention.

In the figure, the reference numeral 1 indicates a power unit for a walking/running toy according to the present invention. 31, and a plurality of gears 41, 42, 43, 4 forming the transmission gear group 4.
4, 45, a plurality of gears 46, 51, 52 constituting the reduction gear mechanism 5, a governor mechanism 53, a drive shaft 6, left and right cams 71, 71 constituting the crank mechanism 7, and a walking leg member 81. , 82 and a switching operation piece 9 are incorporated.

The machine frame 2 has a hollow box-like shape.

The spring-type power source 31 has a spiral spring (not shown) whose inner end is fixed to the mainspring shaft 7, while its outer end is fixed to the machine frame 2, and the mainspring shaft 7 is connected to the mainspring shaft 7. When the spring is rotated counterclockwise in the figure, the mainspring (not shown) is wound up, and when the mainspring is unraveled, the mainspring shaft 7
is configured to be rotated clockwise in the figure. However, the power source 3 is this wind-up power source 3.
The present invention is not limited to 1, and may be of a motor type.

The transmission gear group 4 includes a gear 41 fixed to the mainspring shaft 7 and a gear 4 fixed to the drive shaft 6.
5, a gear 44 that constantly meshes with the gear 45 in the large gear portion 44a, and a large gear portion 44a of the gear 44.
A planetary gear 42 is always meshed with the large gear portion 44a and is movably supported along the outer periphery of the large gear portion 44a.
(This planetary gear 42 is a rotary shaft 42 that is movably supported by an arc-shaped shaft hole 2a with the axis of the gear 44 as the center of curvature, which is provided on both side walls of the machine frame 2.
It is fixed at a. ), and a planetary gear 43 (this planetary gear 43
is fixed to a rotating shaft 43c that is movably supported by an arc-shaped shaft hole 2b that is provided on both side walls of the machine frame 2 and is centered on the rotational axis of the gear 41. )
It is composed of. The configuration of the transmission gear group 4 is not limited to the above configuration, but may have any configuration as long as it has the role of transmitting the power of the power source 3 to the drive shaft 6. good.

Further, the reduction gear mechanism 5 is operated in the axial direction (the first
A gear 51 is movable in the direction perpendicular to the plane of the drawing, and as the gear 51 moves, the small gear portion 51b is displaced between a position where it engages with the gear 46 and a position where it disengages.
, a gear 52 that constantly meshes with the large gear portion 51a of the gear 51, and a governor mechanism 53 operated by the gear 52. This reduction gear mechanism 5 is not limited to the above structure, but may have any structure as long as it slows down the transmission of rotational power to the drive shaft 6 by the transmission gear group 4.

Further, the drive shaft 6 is rotatably supported in shaft holes (not shown) provided in both side walls of the machine frame 2. Both end portions of this drive shaft 6 protrude to both sides of the machine frame 2, and a drive shaft 100 is fixed to both outer end portions thereof.

Further, the cams 71, 71 have a disk shape, and the portions deviated from the center (eccentric portions) are fixed to the portions of the drive shaft 6 close to the inner sides of both side walls of the machine frame 2. The cams 71, 71 are arranged so that their phases are shifted by 180° from each other.

On the other hand, the walking leg members 81 and 82
are parallel to each other and approximately horizontal near the inner side of both side walls, and their front and rear ends are respectively connected to the machine frame 2.
It is arranged so as to protrude from a through hole (not shown) provided in the front and rear walls of.

Long holes 81a and 82a are provided at the front ends of these walking leg members 81 and 82, respectively, along the longitudinal direction thereof, and these long holes 81a and 82a are provided horizontally protruding inside both walls of the machine frame 2, respectively. The circular through-holes 81b and 82b, which are loosely fitted onto the pins 2c and 2c and which are bulged in the central portions of the walking leg members 81 and 82, are loosely fitted into the cam 71. It is fitted externally.

Therefore, when the cam 71 rotates counterclockwise in FIG. 4, the walking leg members 81 and 82 alternately perform walking-like movements as shown by arrows M in the same figure.

In this embodiment, the disc-shaped cams 71, 71 constitute the crank mechanism 7 that causes the walking leg members 81, 82 to operate as described above. The crank mechanism 7 may be constructed of something other than the cams 71, 71 (for example, one with a bent shaft) as long as it causes movement.

Next, the power unit 1 configured as described above is
The operation will be explained.

First, as shown in FIG.
When the power unit 1 is moved backward in the direction shown by the arrow
Since the planetary gear 42 is rotated counterclockwise (the direction indicated by the arrow in the figure), the planetary gear 42 is rotated in the large gear portion 44 of the gear 44.
The small gear part 41b of the gear 41 is moved counterclockwise along the outer periphery of the gear 41 and fixed to the mainspring shaft 7.
mesh with. Due to such meshing of the gears, the rotation of the drive wheel 100 is transmitted to the mainspring shaft 7, and the mainspring shaft 7 is rotated counterclockwise in the figure. As a result, the mainspring (not shown) fixed to the mainspring shaft 7 is wound up. At this time, the planetary gear 43 is pulled counterclockwise by the large gear part 41a rotating counterclockwise, and moves counterclockwise along the outer periphery of the large gear part 41a.
The large gear portion 43a of the planetary gear 43 separates from the small gear portion 44b of the gear 44.

After winding up the mainspring (not shown) in this way, when the drive wheel 100 is released, the mainspring (not shown) begins to unwind, and as a result, the gear 41 moves as indicated by the arrow in FIG. It will begin to rotate clockwise as shown. Then, the planetary gear 43 moves clockwise in the figure along the outer periphery of the large gear portion 41a, and the large gear portion 43a meshes with the small gear portion 44b of the gear 44. Due to this kind of meshing of gears, the mainspring shaft 7 due to unwinding of the mainspring
The rotation speed is increased and transmitted to the drive shaft 6, and the drive shaft 6 is rotated counterclockwise in FIG. As the drive shaft 6 rotates, the drive wheel 100 rotates counterclockwise in the figure, and the walking leg members 81, 82
As mentioned above, there is a walking-like movement (arrow M in Fig. 4).
Exercises shown in ).

In this case, when the switching operation piece 9 is moved in the direction of the arrow A shown in FIG. 3 and the gear 51 is moved in the same direction so that the small gear part 51b of the gear 51 meshes with the gear 46, the reduction gear mechanism 5 and is decelerated to a constant speed, the drive wheel 100 rotates at a low speed, and the walking leg members 81 and 82 perform a walking motion at a low speed. On the other hand, if the switching piece 9 is moved in the direction of arrow B shown in FIG. 3 and the gear 51 is moved in the same direction to separate the small gear part 51b from the gear 46, the reduction gear mechanism 5 will no longer be involved. , the drive wheel 100 rotates at high speed, and the walking leg members 81 and 82 perform a walking motion at high speed.

Next, an example in which the power unit 1 configured as described above is applied to a walking/running toy will be described.

What is shown in FIG. 7 is a walking/running toy 120. This walking/running toy 120 has a toy main body 122 constituting the outer shell of the walking/running toy 120 that is divided into two parts, for example, a ventral part 122a and a dorsal part 122b, and the power unit 1
The power unit 1 was made separately so that it could be easily assembled, and the power unit 1 was built into it. In this assembled state, the drive wheel 1 attached to the drive shaft 6 of the power unit 1
00, 100 and the switching operation piece 9 are connected to the toy main body 122.
Also, the rear end portions of the walking leg members 81 and 82 pass through the through holes 120a (not shown) provided in the tail portion of the toy main body 122, respectively. 8), they are in a state of protruding to the outside.

In this way, it is easier to incorporate the power unit 1 into the toy body 122 than to directly incorporate separate components into the toy body 122.
Subsequent disassembly and reassembly are also easy.

On the other hand, a rotatable driven wheel 123 is rotatably attached to the ventral side of the head of the toy body 122, and each walking leg member 8 is attached to the tail of the toy body 122 near the back.
Auxiliary legs 12 are provided at positions corresponding to 1 and 82, respectively.
1 is provided protrudingly.

Walking/running toy 12 configured in this way
0, after winding the mainspring as described above, when standing in the state shown in FIG. 7, the walking leg member 8
1 and 82 are alternately stepped forward and backward (walking motion) to move forward. In this case, if the switching operation piece 9 is operated to engage the reduction gear mechanism 5, the walking movement becomes slow and stable walking is achieved.

On the other hand, the walking/running toy 120 is tilted forward,
When the toy 120 is stood up with the driven wheels 121 and the driving wheels 100, 100 in contact with the ground, the walking/running toy 120 runs by the driving force of the driving wheels 100, 100.
In this case, if the switching operation piece 9 is operated to release the deceleration mechanism 5, the vehicle will run at high speed.

(Effects of the invention) As explained above, the power unit for a walking/running toy according to the invention is achieved by incorporating a power source for walking or running, gears, a drive shaft, walking leg members, etc. into the machine frame. Since it was configured as a single unit,
Not only is assembly easier and easier to assemble than having to assemble each component part separately into the walking/running toy body, but even if the walking/running toy is subsequently disassembled and the power unit is taken out, the components remain intact. It does not fall apart and is extremely easy to reassemble, making it easy for children to disassemble walking and running toys.
Can be reassembled.

[Brief explanation of the drawing]

Figures 1 to 6 are structural explanatory diagrams of the power unit according to the present invention, where Figure 1 is a structural diagram seen from the side, Figure 2 is a structural diagram seen from above, and Figure 3 is a rearward diagram. Figure 4 is a structural diagram of the walking leg member seen from the side. Figure 5 is a structural diagram showing the meshing relationship of gears when winding up the mainspring. Figure 6 is a structural diagram of the mainspring. Fig. 7 is a side view of a walking/running toy incorporating the power unit according to the present invention, and Fig. 8 is a diagonal view of the tail portion of the walking/running toy. It is a partial perspective view showing the state seen from below. DESCRIPTION OF SYMBOLS 1... Power unit, 2... Machine frame, 3... Power source, 4... Transmission gear group, 5... Reduction gear mechanism, 6
...Drive shaft, 7...Crank mechanism, 81, 82...
...Walking leg member, 100...Drive wheel, 122...
Toy body.

Claims (1)

[Scope of utility model registration request] A toy body having an arbitrary shape is provided with a power source, a pair of walking leg members that perform walking motion by the power of the power source, and a drive wheel driven by the power source, and the toy is in a standing state. Walking is performed using the walking leg members, and the driving wheels touch the ground in a fallen state, and running is performed using the driving wheels.
A power unit used in a traveling toy, which includes a power source and a group of transmission gears that transmit the power of the power source within the machine frame constituting the outer shell of the power unit. A reduction gear mechanism that can engage and disengage from the transmission gear group and decelerates the rotation of the transmission gear group in the engaged state is disposed, and the machine frame receives power from the power source via the transmission gear group. A drive shaft for attaching a drive wheel to which power is transmitted and rotates is rotatably mounted horizontally, while a crank mechanism is provided on both left and right sides of the machine frame in conjunction with the transmission gear group, and the power source is connected to the drive shaft. 1. A power unit for a walking/running toy, characterized in that a pair of walking leg members that perform walking motion by being transmitted with power are provided substantially perpendicular to the drive shaft.