JPH0136389B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field The present invention relates to a mobile toy, particularly a mobile toy suitable for moving by remote control such as a vehicle toy or a monster toy.

(b) Prior art and problems A wide variety of moving toys have been developed and put into practice, and among them, the driving force of a motor that can freely rotate in forward or reverse directions is used to move forward or backward. As a mobile toy that can be transformed, there is a toy car that automatically operates by remote control. As shown in FIGS. 1 to 4, this toy car has a pair of left-sided wheels 2 at the front and rear of the car body (toy body) 1.
3, 4, and 5 are provided, and the front wheels 2, 3 are rotatably supported by a support shaft 6, but the rear wheels 4, 5 are
is supported by a drive shaft 7 and is rotatably driven. One rear wheel 4 is the so-called "drive wheel"
The other rear wheel 5 is provided as a "wheel with a clutch", and rotational force is transmitted from a motor 8 that can freely rotate in forward and reverse directions → a small gear 9 of the motor → a large gear 10 →
The drive shaft 7 integrated with the large gear 10 → the rear wheel [drive wheel] 4 integrated with the drive shaft 7 and the rear wheel [wheel with a clutch] 5 that can freely engage and separate from the drive shaft 7. When the motor 8 rotates forward, the rear wheel 4, which is integral with the shaft 7, and the rear wheel 5, which is integral with the drive shaft 7 through connection of the clutch, rotate; In this case, only one rear wheel 4 rotates in response to the reverse rotation of the motor 8. At this time, the clutch of the other rear wheel 5 is disconnected, and the rotational force of the drive shaft 7 is not transmitted to the rear wheel 5.

Therefore, in the case of reversing or changing direction, as shown in FIG. ₁ ), the other rear wheel 5
is in a free state, so to speak, with respect to the rotation of the drive shaft 7, and as the vehicle body 1 moves backward, it follows the rotation, so the actual trajectory 12 of backward movement and direction change has a large rotation radius (r ₂ ). It's something to put away. For this reason, the action of going backwards or changing direction took time, and the action of going backwards, or changing direction, had a weak sense of reality and was not ``real''.

By the way, the other rear wheel 5 as the "wheel with a clutch" is equipped with a clutch plate 13 fixed to the drive shaft 7 as shown in FIGS. 2 and 3.
Multiple claws 1 with spring force on their outer circumferential surface
4 is formed, and a plurality of pawls 14 are made to correspond to a clutch groove 15 formed on the inner circumferential surface of the wheel body 5a, and the drive shaft is moved counterclockwise (in the direction of arrow A) in FIG. When the clutch plate 13 is rotated by 7 (in the case of forward movement), the plurality of pawls 14 each engage with the clutch groove 15 to exhibit a clutch connected state, and the clutch plate 13 is rotated in the clockwise direction (Y direction) (in the direction of the arrow B). When the drive shaft 7, clutch plate 13, and pawl 14 rotate (in the case of reversing or changing direction), the pawl 14 slides on the clutch groove 15 and is not engaged, resulting in a state in which the clutch is disconnected.

In order to utilize the spring force in the pawl 14, in this conventional example, the clutch plate 13 itself is made of a synthetic resin material and the outer circumference size of the pawl 14 is set slightly larger than the inner circumference size of the groove 15. The claw 14 is always projected in the direction of the groove 15. (In addition, in this kind of clutch,
It is well known to additionally use a leaf spring or the like as a separate component to provide spring force. ) Therefore, in order to take advantage of the spring force, the shape of the clutch plate 13 is limited, and a gap 17 tends to remain in the opening 16 of the wheel body 5a.
It is easy for foreign objects such as small gravel to get inside, and this tendency is further exacerbated when toy cars are used outdoors on the road.
If foreign matter gets inside, the clutch function between the pawl 14 and the groove 15 will not work properly, and furthermore, since this clutch uses spring force, when the clutch is not engaged, the pawl 14 will slip on the groove 15, causing abnormal noise. Furthermore, there are various problems in that the backward force (torque) is reduced by the frictional resistance when sliding.

(c) Purpose This invention has been made by focusing on the above-mentioned prior art, and firstly, it is an object of the present invention to provide a mobile toy that can move backwards and change direction quickly by drawing a locus with a small turning radius. A second object of the present invention is to improve the structure of the clutch of a wheel with a clutch and to provide a moving toy that can eliminate the conventional problems associated with the clutch.

(D) Structure In order to achieve the above-mentioned first object, the movable toy according to the present invention (first invention) uses a driving force fixed to one end of a drive shaft to transfer the driving force of a motor that can freely rotate in forward and reverse directions provided in the toy body. In a mobile toy that transmits power to a wheel and a wheel with a clutch provided at the other end of the drive shaft, the clutch is connected when moving forward, and the clutch is disconnected when moving backward, and the toy moves forward or backward or changes direction. The wheel is provided with a locking groove on the outer surface of the wheel side corresponding to the side surface of the toy body, and the side surface of the toy body has a locking groove when the clutch of the wheel is in the disconnected state. A ratchet lever that engages with the uneven portion is provided so as to be freely engageable and detachable from the uneven portion.

Furthermore, in order to achieve the above-mentioned second object, the mobile toy according to the present invention (second invention) combines the driving force of the motor provided in the toy body, which can freely rotate in forward and reverse directions, with the drive wheel fixed to one end of the drive shaft. In a mobile toy that transmits power to a wheel with a clutch installed at the other end of the shaft, and connects the clutch when moving forward and disconnects the clutch when moving backwards, the toy moves forward or backward or changes direction. It is equipped with a wheel body that is non-fixedly attached to the other end of the drive shaft, and a clutch lever that can freely rotate in the circumferential or centric direction depending on the forward or reverse rotation direction of the drive shaft.
a clutch disk located within the internal cavity of the wheel body and fixedly attached to the drive shaft; and forming a wheel side portion that covers the internal cavity of the wheel body and corresponds to a side portion of the toy body. The vehicle is provided with a cover body, and a concavo-convex portion for the clutch is formed on the inner peripheral surface of the wheel body or the cover body in correspondence with the clutch lever.

Furthermore, the mobile toy according to this invention (third invention) is
In order to achieve both the first and second objects described above, the present invention has a configuration in which the first invention and the second invention are combined.

(E) Examples Details of the present invention (first invention, second invention, and third invention) will be explained below with reference to FIGS. 5 to 13. For convenience of explanation, the first to third inventions will be explained together in the following explanation, and the same reference numerals will be used for parts common to the conventional ones, and redundant explanation will be omitted.

5 to 12 show a first embodiment in which a toy car is shown as an example of a "mobile toy".

Front wheels 2, 3 and rear wheels 4, 20 are attached to the car body (toy body) 19, which covers the car chassis 18, as in the conventional case. The size of the wheels is designed to increase the speed when moving forward and the action when going backwards or changing direction.

For one rear wheel 4 as a "drive wheel",
The other rear wheel 20 as "wheel with clutch"
is mainly formed of a wheel body 21, a clutch disk 23 with a clutch lever 22, and a cover body 24. The wheel body 21 has a U-shaped cross section, and a cover body 24 is fitted into an opening 26 on the side corresponding to the side surface 25 of the vehicle body 19 so that an internal space 27 of the wheel body 21 is completely covered. It is set as. The wheel body 21 and the cover body 24 are attached to the other end of the drive shaft 7 in a non-fixed state, that is, in a "free rotation state".

The clutch disk 23 is located in the internal cavity 27 of the wheel body 21 and is rotatably attached to the drive shaft 7 in a fixed state, that is, in a state "integrated with the drive shaft 7". The diameter is smaller than the inner peripheral surfaces 28, 29 of the wheel body 21 and the cover body 24. As clearly shown in FIGS. 7 and 8, the clutch disk 23 has a boss portion 30 that fits into the drive shaft 7 and a pair of cylindrical protrusions 31 that support the clutch lever 22 on the cover body 24 side. When the boss portion 30 is positioned in the inner space 27 of the wheel body 21, the end surface 32 of the boss portion 30 is formed to protrude in the direction of the cover body 24, as shown in FIG. Contact clutch lever 2
2. This ensures reliable positioning with respect to the ``recessed and recessed portion for the clutch'' which will be described later.

The clutch levers 22 are attached as a pair to a pair of cylindrical projections 31, but are completely free relative to the cylindrical projections 31, that is, they are only supported so as not to come off, and are completely free to rotate. Ru. For this reason, the mounting hole 33 of the clutch lever 22 has an inner diameter slightly larger than the outer diameter of the cylindrical projection 31. The pair of clutch levers 22 are attached to the cylindrical protrusion 31 in a rotatable manner.
1 is provided offset from the position of the boss portion 30, so when the clutch disk 23 rotates in the normal or reverse direction in accordance with the rotation of the drive shaft 7, it rotates in the circumferential direction or the centroidal direction. The position of the claw 34 at the tip can be changed outward or inward.
A flange portion 35 is formed at the end of the clutch disk 23 and comes into contact with the side surface of the clutch lever 22 to assist in its rotation.

The cover body 24 covers the inner space 27 of the wheel body 21.
The opening 2 of the wheel body 21 is designed to shield the outside from the outside.
A fitting flange portion 36 is provided on the inner surface to facilitate fitting into the locking device 6, and a locking uneven portion 37 is provided on the outer surface.

By the way, the clutch lever 22 is provided on the inner peripheral surfaces 28 and 29 of the wheel body 21 or the cover body 24.
In this embodiment, a gear-shaped clutch is formed on the inner circumferential surface 29 of the fitting flange portion 36 of the cover body 24, as shown in FIGS. 5 and 8. It is provided with an uneven part 28 for use.

A plurality of the above-mentioned locking uneven portions 37 are formed in the radial direction on the outer surface of the cover body 24, that is, on the “wheel side portion”, and each has a guide slope 39 and an abutment vertical surface 40.
It is equipped with

On the other hand, in a portion of the side surface 25 of the vehicle body 19 corresponding to the "wheel side" of the rear wheel 20, there is a ratchet lever that engages with the locking uneven portion 37 when the clutch of the rear wheel 20 is in the disconnected state. 41 is provided so as to be freely engageable and detachable from the locking concavo-convex portion 37. Specifically, a small-sized window opening 42 is formed in the side surface 25, and a ratchet lever 41 is disposed within a chamber 43 defined inside the vehicle body 19 so as to project outward from the window opening 42. The ratchet lever 41 has an upper part 45 and a lower part 46 that extend obliquely in both up and down directions from a flat part 44 in the middle, and the length of the upper part 45 is set larger than that of the lower part 46, so that the flat part 44 swings toward the window opening 42. Position it as a fulcrum 47, and always move the upper part 45, which is larger in length, in the direction of arrow C [Fig. 8, 11
Figure] and lower part 46 of cover body 2.
9, that is, the outer surface of the wheel side portion where the locking uneven portion 37 is formed.
is brought into contact with this "outer surface" at all times.
The ratchet lever 41 is swingable about the swinging fulcrum 47 of the flat portion 44 in the direction of arrow C or in the opposite direction of arrow C.

Note that 49 in the figure indicates a battery case portion serving as a battery.

Next, the action will be explained.

In the case of forward movement; the motor 8 rotates in the normal direction, and its rotational force is transmitted to → the small gear 9 of the motor 8 → the large gear 10 → the drive shaft 7 → the rear wheel 4 as the drive wheel, and at the same time the rotational force is transmitted from the drive shaft 7 → the clutch. Disc 23 → Clutch lever 22 → Clutch uneven part 38 → Cover body 24
→It is transmitted to the wheel body 21, that is, the rear wheel 20,
Both rear wheels 4, 20 are rotated and the car body 1
9 moves forward. At this time, as the clutch disk 23 rotates counterclockwise in FIG. 9, the pawls 34 at the tips of the pair of clutch levers 22 move in the circumferential direction and enter into the clutch concave and convex portions 38 to connect the clutches. As a result, the rear wheels 20 are rotationally driven. Further, at this time, the ratchet lever 41 does not engage with the locking uneven portion 37 of the cover body 24 that rotates together with the rear wheel 20, and the tip 48 of the ratchet lever 41 does not enter the guide slope 39 and is used for abutment. It climbs over the vertical surface 40 and continues to swing around the swing fulcrum 47 and does not become locked.

In the case of reversing or changing direction; the motor 8 reverses, and its rotational force is transmitted to → the small gear 9 of the motor 8 → the large gear 10 → the drive shaft 7 → the rear wheel 4 as the drive wheel, but the drive shaft 7
→Clutch disk 23→Clutch lever 22
The rotational force transmitted to the clutch is not transmitted to the clutch concavo-convex portion 38, the wheel body 21 is not transmitted with the rotational force, and only the rear wheel 4 rotates backward. At this time, the clutch disk 23 rotates clockwise in FIG. 9, and the pawls 3 of the pair of clutch levers 22 rotate.
4 move in the direction of the center of the circle to form the concave and convex portions 3 for the clutch.
8 and the clutch is not engaged.

However, if one of the rear wheels 4 is driven in the reverse direction and the vehicle body 19 moves slightly in an attempt to go backwards, the wheel body 21 in a free state with the clutch not connected will follow this and rotate slightly, but at this time the cover body 2
Similarly, the latch lever 41 rotates slightly, and the tip 48 of the latch lever 41 enters the guide slope 39 and hits the abutment vertical surface 40, thereby establishing a locked state in which the latch lever 41 and one of the locking uneven portions 38 are engaged. As a result, the cover body 24 and the wheel body 21 do not follow the rotation, and the rear wheel 20 does not rotate backward because the wheel body 21 is in a locked state even though the clutch disk 23 is rotating idly within its internal space 27. It turns out.

Therefore, as shown in FIG. 12, the locus 50 of the vehicle body 19 when reversing and changing direction is an arc of a minimum radius (r ₃ ) centered on the rear wheel 20, which allows the vehicle to change direction instantaneously. It is something to do. Moreover, because the rear wheel 4 has a larger diameter than the front wheels 2 and 3, the vehicle is forced to go backwards and change direction even though the other rear wheel 20 is in a locked state. Actions are fast-paced and have a rich sense of ``real'' reality.

FIG. 13 is a diagram showing a second embodiment. In this embodiment, the toy main body 51 is the front wheels 2 and 3 of the previous embodiment.
A pair of left and right wheels 52, 53 in place of the rear wheels 4, 20
The toy main body 51 is covered with a monster case 56 imitating a monster. Other than the fact that the wheel 53 has the same structure as the rear wheel 20 of the previous embodiment, the other configurations and operations are substantially the same as those of the first embodiment, so redundant explanation will be omitted. Note that the wheels 53 can be used as either rear wheels or front wheels.

(c) Effect This invention (first invention, second invention, and third invention)
Since the moving toy according to the invention has the content as explained above, according to the first invention, when going backwards or changing direction, the wheels with the clutch are locked and the toy is restrained or restrained.
Since the toy body is moved backwards by rotating only the fixed and fixed driving wheels, the locus of the direction change is a small rotation radius centered on the fixed and fixed wheels, and the direction change is instantaneous, giving a sense of realism. This has the effect of making it more interesting as a toy because it allows quick reverse and direction change operations; furthermore, according to the second invention, the wheel with a clutch has an opening in the wheel body that is connected to the cover body. Since the clutch is completely shielded, foreign matter such as small gravel does not enter the internal cavity, and the clutch does not use spring force, so it prevents noise from collision with the wheel body and backward force due to frictional resistance. There is an effect that the problem of reduction is solved, and furthermore, according to the third invention, the first
The effects of both the invention and the second invention can be expected.

[Brief explanation of drawings]

FIGS. 1 to 4 are diagrams showing conventional examples;
Fig. 1 is a schematic plan view of the moving toy, Fig. 2 is a side view of the rear wheel along the arrow line in Fig. 1, and Fig. 3 is a side view of the rear wheel as seen from the direction of the arrow in Fig. 1. A side view, FIG. 4 is a schematic plan view showing the locus of reversing and changing direction,
5 to 12 are diagrams showing a first embodiment of the present invention; FIG. 5 is a schematic plan view corresponding to FIG. 1, and FIG. 6 is a view seen from the direction of the arrow in FIG. 1. 7 is an exploded perspective view of the wheel seen from the direction of the arrow in FIG. 5, FIG. 8 is a sectional view taken along the arrow in FIG. Arrow in the figure -
10 is a schematic explanatory diagram showing the state of engagement between the cover body and the ratchet lever as seen from the direction of the arrow in FIG. FIG. 12 is a schematic plan view corresponding to FIG. 4, and FIG. 13 is a schematic perspective view of a movable toy showing a second embodiment of the present invention. 1, 19...Car body [toy body], 4...
Rear wheel (left), 5, 20... Rear wheel (right), 5a, 21
... Wheel body, 7 ... Drive shaft, 8 ... Motor, 11, 12, 50 ... Trajectory, 22 ... Clutch lever, 23 ... Clutch disk, 24 ...
...Cover body, 25...Side part of automobile body, 27
. . . Internal cavity, 34 . . . Pawl, 37 . . . Uneven portion for lock, 38 .

Claims (1)

[Claims] 1. The driving force of a motor provided in the toy body that can freely rotate in forward and backward directions is transmitted to a drive wheel fixed to one end of a drive shaft;
In a mobile toy that transmits power to a wheel with a clutch provided at the other end of the drive shaft, and connects the clutch when moving forward and disconnects the clutch when moving backwards, the toy moves forward or backward or changes direction. , a locking uneven portion is provided on the outer surface of the wheel side portion corresponding to the side portion of the toy body, and the side portion of the toy main body is provided with a locking uneven portion that engages with the locking uneven portion when the clutch of the wheel is in the disconnected state. A movable toy characterized in that a ratchet lever is provided so as to be freely engageable and detachable from the concavo-convex portion for the clutch. 2. The driving force of the motor installed in the toy body, which can freely rotate in forward and reverse directions, is transferred to a drive wheel fixed to one end of the drive shaft.
In a mobile toy that transmits power to a wheel with a clutch provided at the other end of the drive shaft, and connects the clutch when moving forward and disconnects the clutch when moving backwards, the toy moves forward or backward or changes direction. , a wheel body that is non-fixedly attached to the other end of the drive shaft, and a clutch lever that can freely rotate in the circumferential or centric direction depending on the forward or reverse rotation direction of the drive shaft,
a clutch disk positioned within the internal cavity of the wheel body and fixedly attached to the drive shaft; and forming a wheel side portion that covers the internal cavity of the wheel body and corresponds to a side portion of the toy body. 1. A moving toy comprising: a cover body, and a clutch uneven portion is formed on the inner circumferential surface of the wheel body or the cover body in correspondence with the clutch lever. 3. The driving force of the motor installed in the toy body, which can freely rotate in forward and reverse directions, is transferred to a drive wheel fixed to one end of the drive shaft,
In a mobile toy that transmits power to a wheel with a clutch provided at the other end of the drive shaft, and connects the clutch when moving forward and disconnects the clutch when moving backwards, the toy moves forward or backward or changes direction. , a wheel body that is non-fixedly attached to the other end of the drive shaft, and a clutch lever that can freely rotate in the circumferential or centric direction depending on the forward or reverse rotation direction of the drive shaft,
a clutch disk positioned within the internal cavity of the wheel body and fixedly attached to the drive shaft; , and a cover integrally provided with a locking unevenness on its outer surface, and a clutch unevenness is formed on the inner circumferential surface of the wheel body or the cover body in correspondence with the clutch lever, and the above-mentioned toy The main body is provided with a ratchet lever on a side thereof, which engages with the locking groove when the clutch of the wheel is in an unconnected state, and is detachably engaged with the locking groove. toy.