JPH0111273Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to a riding toy that can be operated by the infant himself to travel with the infant on board.

(Prior Art) Conventionally, various riding toys of this type have been provided. For example, there is a small electric vehicle described in Japanese Utility Model Publication No. 47-10979. This is a small electric vehicle that is equipped with an on-board power battery and a DC motor for driving the wheels. This is configured to be performed by operating a switch.

There is also a riding toy as shown in Japanese Utility Model Application No. 57-13088. In riding toys, this supports a battery, a motor, and a group of gears that transmit the rotation of the motor to passive gears fixed to the axle.
In addition, a machine frame is provided that slidably supports a support shaft of a gear that meshes with the passive gear, and a spring is attached to the slide shaft to bias the coaxial shaft to a position where the gear meshes with the passive gear. A clutch plate having a protrusion for pushing the slide shaft against the elastic force of a spring is slidably supported on the machine frame, and a switching lever pivotally connected to the vehicle body is connected to the clutch plate. A conductive contact piece is attached to the clutch plate, and when the protrusion of the clutch plate is moved to one side and the other position from the position where it pushes the slide shaft using the switching lever, the above contact piece is removed. Each piece is provided with terminals that contact each other separately to switch and connect the battery and motor connection circuits.

(Problem to be solved by the invention) However, in the above-mentioned riding toys, the connection between the DC motor and the wheel axle is always connected, so if the battery is exhausted, for example, the toy may not be able to move due to foot kicking, etc. It is difficult to run, and if a strong external force is applied, there is a risk of damaging gears, etc.
The electric vehicle can only be driven forward and stopped by operating a foot-operated switch, which is uninteresting.Furthermore, if a child accidentally presses the foot-operated switch, the electric vehicle may move carelessly or suddenly. It was hot.

In addition, in a riding toy as described below, the clutch portion is composed of a passive gear fixed to the axle and a pinion fixed to a slide shaft that can freely slide with respect to the machine frame, and the pinion is activated by sliding the slide shaft. Since the clutch is freely meshed with the passive gear to transmit and cut off rotational force, frequent clutch operations tend to damage the pinion and the passive gear, as well as having poor durability. In addition, it was difficult to mesh the pinion with the driven gear, making it impossible to expect smooth transmission and isolation of rotational force. Furthermore, the clutch plate is supported on the machine frame so that it can slide freely in a direction perpendicular to the axis of the slide shaft, and the protrusion of the clutch plate supports the shaft end of the slide shaft against the elastic force of the spring. By pressing
Since the rotational force is transmitted and interrupted by the pinion and the passive gear, when the protrusion of the clutch plate presses the shaft end of the slide shaft, the end of the slide shaft feels as if it is caught on the protrusion. The sliding movement of the clutch plate became heavy, and the clutch mechanism was difficult to operate with a small amount of force. Moreover,
When the clutch is operated frequently (sliding motion of the clutch plate), the protrusion is likely to be damaged by the end of the slide shaft, and there is a risk that reliable operation cannot be expected.

(Means for Solving the Problems) Therefore, this invention aims to solve the problems that existed in the past, and also makes it possible to move forward, backward, and stop with a simple configuration in providing a ride-on toy, and also has a feeling of operation. was devised to make it possible to obtain something similar to a real car, etc. Specifically,
In a riding toy in which the drive rotational force of the motor 2 is transmitted to the wheel shaft 3 via a reduction gear train 13 equipped with a clutch mechanism, the clutch mechanism is connected to the base frame 1.
1, a fixed gear 18A fixed to a clutch shaft 18C mounted on the clutch shaft 18C; a movable gear 18B rotatably attached to the clutch shaft 18C and slidable along the axial direction; A swing lever 14 is attached to the machine frame 11 so as to swing within a plane. On the side surface of the fixed gear 18A, a substantially square shaft-shaped engagement protrusion 18D is provided.
An engaging protrusion 18 is provided on the side surface of the moving gear 18B.
A substantially square-shaped engagement hole 18E that can be freely engaged with and disengaged from D is formed, and a coil spring 21 is compressed between the machine frame 11 and the movable gear 18B, so that the movable gear 18B is connected to the fixed gear 18A. The spring force is applied so that the crocodile moves toward the crocodile. A cam is attached to the tip of the swinging lever 14, which swings with the tip end as a fulcrum, and is capable of pressing the side surface of an engagement disk 22 provided around the movable gear 18B against the elastic force of the coil spring 21. 23, and this cam 23 has a swing lever 1.
4 is in the neutral position, the engagement disk 22 is pressed to release the engagement state between the engagement hole 18E of the moving gear 18B and the engagement protrusion 18D of the fixed gear 18A. When the protrusion 23A and the swing lever 14 are in the upward or downward swing position, the elastic force of the coil spring 21 is released,
Upper and lower edges 23B are formed so that the engagement hole 18E and the engagement protrusion 18D can be engaged with each other.
Further, on the side of the swing lever 14, the swing lever 1
A forward/reverse switch 15 is installed which cuts off the power supply to the motor 12 when the lever 4 is in the neutral position and enables the power supply to the motor 12 when the swing lever 14 is in the upper or lower swing position. Further, an operating rod 28 swingably attached to the frame 4 is connected to the base end portion of the swinging lever 14 so that the swinging lever 14 can be swinged by swinging the operating rod 28. A means is adopted in which a foot pedal switch 29 serving as a starting switch provided on the footrest 6 of the frame 4 is connected between the forward/reverse switch 15 and the power source.

(Example) This invention will be described below with reference to illustrated examples.

In the figure, reference numeral 1 denotes a toy body mainly made of synthetic resin and formed, for example, in the form of a motorcycle or a car.
In the illustrated example, it is in the form of a three-wheeled motorcycle, and is configured so that an infant or the like can ride astride the seat 2 thereof.

The toy main body 1 includes a machine frame 11, a motor 12 disposed in the machine frame 11, a reduction gear train 13 that transmits the driving force of the motor 12 to the wheel shaft 3, and a reduction gear train 13. A clutch mechanism for transmitting and interrupting the drive rotational force within the engine, and a forward/reverse switch 1 provided on a swinging lever 14 of the clutch mechanism.
A drive device 10 consisting of 5 is built-in.

The drive device 10 includes a drive gear 16 fixed to a drive shaft 12A of the motor 12, a plurality of reduction gears 17,
A driven gear 20 fixed to the wheel shaft 3 is connected via a reduction gear train 13 consisting of 18 and 19.

The clutch mechanism includes a plurality of reduction gears 17, 18,
One of the reduction gears 18 of 19 is replaced with the fixed gear 18.
A, a moving gear 18B, and a fixed gear 18A.
is fixed to a clutch shaft 18C mounted on the base frame 11, and a moving gear 18B is attached to the clutch shaft 18C so as to be rotatable and movable along the axial direction, and is perpendicular to the clutch shaft 18C. A swing lever 14 is attached to the machine frame 11 so as to swing within a plane. Furthermore, an engagement protrusion 18D having a substantially hexagonal cross section is protrudingly provided on the side surface of the fixed gear 18A on the side of the movable gear 18B.
There is an engaging protrusion 1 on the side of the fixed gear 18A of 8B.
An engagement hole 18E having a substantially hexagonal cross section is formed in the engagement hole 8D, which can be detachably engaged with the engagement hole 18E. A clutch shaft 1 is provided between the machine frame 11 and the moving gear 18B.
A coil spring 21 fitted externally to 8C is compressed, and this coil spring 21 constantly presses the movable gear 18B toward the fixed gear 18A, and causes the engagement hole 18E to engage (fit into) the engagement protrusion 18D. The repulsive force is increased so that the Furthermore, moving gear 1
A moving gear 18 is located next to the engagement hole 18E of 8B.
An engagement disk 22 is provided around the B circumferential surface so as to largely protrude outward.

The swinging lever 14 is attached to the machine frame 11 so as to be able to swing vertically using a portion near the tip as a fulcrum. The engaging protrusion 18 of the fixed gear 18A is pressed against the elastic force.
A generally fan-shaped cam 23 is provided that can control the engagement and disengagement between the movable gear D and the engagement hole 18E of the moving gear 18B. This cam 23 presses the engagement disc 22 when the swing lever 14 is in the neutral position,
A protrusion 23A having inclined surfaces at both ends capable of moving the moving gear 18B against the elastic force of the coil spring 21 and releasing the engagement state between the engagement protrusion 18D and the engagement hole 18E; When the lever 14 is in the upper or lower swing position, the coil spring 21
, and the engagement hole 1 of the moving gear 18B is released.
8E and upper and lower edges 23B that can be engaged with the engagement protrusion 18D of the fixed gear 18A. That is, when the swing lever 14 is in the neutral position and the protrusion 23A and the engagement disk 22 are engaged, the engagement between the engagement protrusion 18D and the engagement hole 18E is released and fixed. Gear 18A and moving gear 1
8B is disconnected, and the swinging lever 14 swings upward or downward, causing the upper and lower edges 2 of the cam 23 to move upwardly or downwardly.
3B releases the elastic force of the coil spring 21, the engagement protrusion 18D and the engagement hole 18E are in an engaged state, the fixed gear 18A and the movable gear 18B are connected, and the motor 12 and the rear axle are connected. It connects 3.

Further, on the side surface of the swing lever 14, when the swing lever 14 is in a neutral position and the fixed gear 18A and the movable gear 18B are not connected, power to the motor 12 is cut off, and the swing lever 14 is in a neutral position. A forward/reverse switch 15 is installed so that when the fixed gear 18A and the movable gear 18B are in the upward or downward swing position and the fixed gear 18A and the movable gear 18B are connected, the motor 12 is energized and the motor 12 rotates forward or reverse. There is.

In other words, the forward/reverse switch 15 has an arcuate contact plate 24A extending approximately 120 degrees around the center of swing of the swing plate 14A provided at the fulcrum of the swing lever 14.
and an arcuate contact plate 24B of approximately 240° are arranged on the side of the swinging plate 14A to form the swinging switch board 24, while three contacts 25A are arranged on the same circumference at intervals of about 120°. A switch plate 25 is arranged so as to face the swinging switch board 24, and the contact point 25A is arranged to resiliently contact the swinging switch board 24 by means of a coil spring 26. By swinging the swinging lever 14, the connection polarity of the dry cell battery 7, which serves as the power source for the motor 12, is changed, so that the motor 12 can be rotated in forward and reverse directions.

Further, the lever part 14B at the base end of the swing lever 14 has a long hole 1 in which the engagement pin 27A of the swing rod 27 engages.
4C is formed. The swinging rod 27 is generally formed in a dogleg shape, and is pivotally attached to the frame 4 of the toy main body 1 with the central bent portion as a fulcrum.
An engagement pin 27A is formed at one end, and an engagement pin 27B that engages with an engagement groove 28A of the operating rod 28 is formed at the other end.

The operating rod 28 is pivoted to the frame 4 so as to be able to swing freely in the front and rear directions with approximately the center as a fulcrum. It stands out,
An engagement groove 28A is engaged with an engagement pin 27B at one end.
is formed. In other words, the swing lever 14 is formed to be able to swing by swinging the operating rod 28. Moreover, when the operating rod 28 is in the neutral position, the swing lever 14 is also in the neutral position.

Further, a foot pedal switch 29 serving as a starting switch is provided on the footrest 6 at the bottom of the frame 4, and this foot pedal switch 29 is connected in series to the forward/reverse switch 15 and to a dry cell battery 7 as a power source. , the motor 12 can be energized via the foot pedal switch 29. That is, when both the foot pedal switch 29 and the forward/reverse switch 15 are in the ON state, electricity is supplied to the motor 12 from the dry cell battery 7 as a power source.

A battery case 8 in which a dry battery 7 is loaded is formed below the seat 2, and the seat 2 is connected to the battery case 8.
It is used as a lid.

This device is constructed as described above, and to use it, first straddle the seat 2, step on the foot pedal switch 29, and tilt the operating rod 28, which is in the neutral position, forward (swing). Then, the swing lever 14 in the neutral position swings via the swing rod 27, and the engaging disc 2 is moved by the protrusion 23A of the cam 23.
2 is released, the engagement protrusion 18D and the engagement hole 18E engage with each other, and the rotational force of the motor 12 is transmitted to the wheel axle 3. At the same time, the motor 12 is The forward/reverse switch 15 is turned ON so that the toy moves forward.

Furthermore, by stepping on the foot pedal switch 29 and tilting the operating rod 28 backward (swinging), the rotational force of the motor 12 is transmitted to the wheel axle 3 in the same manner as when moving forward, and the motor 12 is also reversed. The forward/reverse switch 15 is turned on and the toy moves backward.

In addition, with the operating rod 28 in the neutral position, the fixed gear 1
It is also possible to disconnect the moving gear 8A from the moving gear 18B and play with the toy by moving the toy with the infant on it by the infant's kicking motion.

(Effect of the invention) Therefore, this invention provides the following effects in a riding toy in which the driving rotational force of the motor 2 is transmitted to the wheel shaft 3 via the reduction gear train 13 equipped with a clutch mechanism.
The clutch mechanism includes a fixed gear 18A fixed to a clutch shaft 18C mounted on the base frame 11, a movable gear 18B rotatably attached to the clutch shaft 18C and slidably along the axial direction. It consists of a swing lever 14 attached to the machine frame 11 so as to swing in a plane orthogonal to the shaft 18C, and a substantially square shaft-shaped engagement protrusion 18D protrudes from the side surface of the fixed gear 18A. A substantially square-shaped engagement hole 18E is formed on the side surface of the moving gear 18B and can be releasably engaged with the engagement protrusion 18D, and a coil spring 21 is compressed between the machine frame 11 and the moving gear 18B. The distal end of the swinging lever 14, which swings around the distal end portion as a fulcrum, is provided with a resilient force so that the movable gear 18B moves toward the fixed gear 18A. A cam 23 is formed that can press the side surface of the provided engagement disk 22 against the elastic force of the coil spring 21.
4 is in the neutral position, the engagement disk 22 is pressed to release the engagement state between the engagement hole 18E of the moving gear 18B and the engagement protrusion 18D of the fixed gear 18A. When the protrusion 23A and the swing lever 14 are in the upper or lower swing position, the elastic force of the coil spring 21 is released,
The upper and lower edges 23B are formed so that the engagement hole 18E and the engagement protrusion 18D can be engaged with each other, and the side surface of the swing lever 14 is provided with a motor when the swing lever 14 is in the neutral position. Cut off the power to 12,
A forward/reverse switch 15 is installed that enables the motor 12 to be energized when the swing lever 14 is in the upper or lower swing position, and an operating rod 28 swingably mounted on the frame 4 is attached to the swing lever 14. A foot pedal switch 29 is connected to the base end portion and is formed so that the swing lever 14 can swing by swinging the operating rod 28, and is provided on the footrest 6 of the frame 4 and serves as a starting switch. Since it is connected between the forward/reverse switch 15 and the power source, it is possible to provide a riding toy that can move forward, backward, and stop with a simple configuration. The rocking lever 14 of the clutch mechanism is placed in the neutral position by the rocking operation, and the fixed gear 1
By cutting off the connection between 8A and the moving gear 18B, the child can apply sufficient running force to the ride-on toy with just the kicking motion of the child's foot, and the ride-on toy can run smoothly without resistance. . Furthermore, there is no risk of damage to the motor 12, reduction gear train 13, etc. even if a child kicks his or her feet.

In particular, the clutch mechanism is connected to a fixed gear 18A fixed to the clutch shaft 18C, a movable gear 18B rotatably attached to the clutch shaft 18C and slidably along the axial direction, and a clutch shaft 18C. It is composed of a swing lever 14 attached to the machine frame 11 so as to swing in orthogonal planes,
A substantially square shaft-shaped engagement protrusion 18 is provided on the side surface of the fixed gear 18A.
D is provided protrudingly, and an engaging protrusion 1 is provided on the side surface of the moving gear 18B.
8D is formed with a substantially square-shaped engagement hole 18E that can be freely engaged and disengaged, so even if the clutch mechanism is operated frequently, the clutch mechanism part is not easily damaged and has excellent durability. becomes. Moreover, the engaged state and disengaged state between the substantially square shaft-shaped engagement protrusion 18D of the fixed gear 18A and the substantially square-shaped engagement hole 18E of the movable gear 18B can be easily and smoothly obtained.
Transmission of the driving rotational force in the clutch mechanism and disconnection operation can be performed smoothly and reliably.

Furthermore, the cam 23 provided at the tip of the swinging lever 14, which swings around the tip end as a fulcrum, presses the side surface of the engagement disk 22 provided around the moving gear 18B against the elastic force of the coil spring 21. As a result, the clutch mechanism (swing lever 14 and moving gear 18B) can be operated easily with a small amount of force.
Even young children can easily operate the clutch. Furthermore, even if the clutch is operated frequently, the cam 23, the engagement disc 22, etc. will not be damaged, and reliable operation can be expected at all times.

In addition, when switching from normal rotation to reverse rotation or from reverse rotation to normal rotation, the protrusion 23A of the swing lever 14
As a result, the engagement state between the engagement protrusion 18D and the engagement hole 18E is always released once in the middle of switching, and the connection between the motor 12 and the wheel axle 3 is reliably severed, so that sudden sudden changes occur. Even when switching from normal rotation to reverse rotation or from reverse rotation to normal rotation by operating the operating rod 28, there is no risk that the inertia force of the riding toy itself will be applied to the motor 12 during running, and the reduction gear train 13 is also freed from the risk of being subjected to excessive force, and these failures and damages are less likely to occur, and durability is improved.

In addition, by swinging the operating rod 28, the
The vehicle can now move backwards and stop, and the operation is similar to that of a gear lever in a real car, making it possible to provide an interesting toy for young children.

Furthermore, since it is formed so that the motor 12 can be energized via the forward/reverse switch 15 and the foot pedal switch 29 provided on the frame 4,
Even if a young child accidentally presses the foot pedal switch 29, the forward/reverse switch 15 and clutch mechanism prevent the riding toy from moving carelessly or suddenly, making it safe for even young children to enjoy with peace of mind. Becomes superior in quality. Furthermore, by arranging the foot pedal switch 29 on the footrest 6, it is possible to obtain an operation feeling more similar to that of operating a real car, etc., which is interesting and can be enjoyed by young children for a long time without getting bored. It becomes a riding toy.

[Brief explanation of drawings]

The drawings illustrate this invention: Fig. 1 is a partially cutaway side view of the riding toy, Fig. 2 is a partially cutaway side view of the drive device, Fig. 3 is a plan view of the drive device, and Fig. 4 is a partially cutaway side view of the riding toy.
This figure is a front view of the drive device, and FIG. 5 is an exploded perspective view showing the relationship between the swing lever, the forward/reverse switch, the fixed gear, and the driving gear. 1...Toy body, 2...Seat, 3...Wheel axle,
4... Frame, 5... Notch, 6... Footrest,
7...Dry battery, 8...Battery case, 10...Drive device, 11...Machine frame, 12...Motor, 12A...
... Drive shaft, 13 ... Reduction gear train, 14 ... Swing lever, 14A ... Swing plate, 14B ... Lever part,
14C...Long hole, 15...Forward/reverse switch, 16
... Drive gear, 17 ... Reduction gear, 18 ... Reduction gear, 18A ... Fixed gear, 18B ... Moving gear, 18C ... Clutch shaft, 18D ... Engagement protrusion, 18E ... Engagement hole, 19 ...Reduction gear, 20
... Driven gear, 21 ... Coil spring, 22 ... Engagement disk, 23 ... Cam, 23A ... Projection, 23B
... Edge, 24 ... Swing switch panel, 24A ...
Contact plate, 24B...Contact plate, 25...Switch plate, 25A...Contact, 26...Coil spring, 27
...Swinging rod, 27A...Engagement pin, 27B...Engagement pin, 28...Operating rod, 28A...Engagement groove, 2
8B...Grip part, 29...Foot pedal switch.

Claims (1)

[Scope of utility model registration request] In a riding toy in which the drive rotational force of a motor is transmitted to a wheel shaft through a reduction gear train equipped with a clutch mechanism, the clutch mechanism is a fixed gear fixed to a clutch shaft mounted on a base frame. , a movable gear rotatably attached to the clutch shaft and slidably along the axial direction, and a swing lever attached to the machine frame so as to swing in a plane orthogonal to the clutch shaft. A substantially square shaft-shaped engagement protrusion is provided on the side surface of the fixed gear, and a substantially square-shaped engagement hole is formed on the side surface of the movable gear so that it can be freely engaged with the engagement protrusion. A coil spring is compressed between the machine frame and the movable gear to apply elastic force so that the movable gear moves toward the stationary gear, and the rocking motion is achieved by swinging around the tip of the gear as a fulcrum. A cam is formed at the tip of the lever and is capable of pressing the side surface of an engagement disk provided around the movable gear against the elastic force of the coil spring, and this cam has a swing lever in a neutral position. When the engagement disk is pressed, a protrusion with inclined surfaces on both ends that can release the engagement state between the engagement hole of the movable gear and the engagement protrusion of the fixed gear, and the swinging lever are moved upward. Alternatively, upper and lower edges are formed such that when the coil spring is in the downward swinging position, the elastic force of the coil spring is released and the engagement hole and the engagement protrusion are engaged with each other. On the side of the lever, there is a forward/reverse switch that cuts off power to the motor when the swing lever is in the neutral position, and enables power to be applied to the motor when the swing lever is in the upper or lower swing position. The operating rod is attached to the frame so that it can swing freely, and the operating rod is connected to the base end of the swinging lever. A riding toy characterized in that a foot pedal switch serving as a starting switch provided in the section is connected between a forward/reverse switch and a power source.