JPH0327679Y2 - - Google Patents

Description

[Detailed description of the invention] (Technical field of the invention) This invention relates to a running toy with a built-in spring drive device, which runs at a slow speed at the start of running, then changes to a very fast running speed, and The present invention relates to a running toy capable of so-called wheelie running, in which the front part of the vehicle body remains lifted upward when the running speed changes.

(Technical background of the invention and its problems) Conventionally, various toys have been provided that are driven using a spring drive device. That is, the toy itself is extremely advantageous in that it can be made smaller and lighter, it does not require the use of a power source such as a dry battery, and it is less expensive for children to play with.

However, since spring power can only store a relatively small amount of energy, it is often designed to attract children's interest by adding various twists to its movement. For example, one of them is
There is a spring power device for a 2-speed action as disclosed in Japanese Patent No. 196295. This is a slow motion state at the start of driving, which changes to a fast motion state after a predetermined time has elapsed or after a predetermined distance has been traveled. When this is used as a driving source for a traveling toy, the running speed changes while the toy is running, which is very interesting and provides children with a new way to play.

However, since the only change is the running speed, there is a limit to how creative the game can be, and since there is no change in the running form, there is a drawback that it is less interesting.

(Purpose of the invention) Therefore, this invention was devised in view of the above-mentioned points, and the front part of the vehicle body is moved upward when the vehicle starts traveling at a slow speed and then changes to a very high speed. The vehicle is driven in a so-called wheelie state in which the vehicle is driven while being lifted up by the vehicle, and the running stability during this wheelie state is further improved, making it more interesting and enjoyable for young children and others to enjoy for a long period of time without getting bored. The purpose is to provide running toys.

(Summary of the invention) In order to achieve the above-mentioned object, this invention provides a traveling toy that runs by driving and rotating the rear wheels by releasing the retracting force accumulated in the mainspring. The front left and right wheels are rotatably supported at the front of the chassis, and a spring drive device with the left and right rear wheels is mounted at the rear of the chassis.
This mainspring drive device is formed such that its front part is pivotally supported by the chassis so that it can swing up and down with respect to the chassis, and the rear wheel is movable up and down near the rear of the chassis, and the front end of the mainspring drive device is The upper part supports the base end of the slide rod, and the tip of the slide rod is slidably attached to the front of the chassis.The slide rod is equipped with a coil spring and is driven by a mainspring so that the rear wheel is always positioned downward. Wheelie weights are placed behind the rear wheels that apply elastic force to the device and make the weight balance of the entire toy heavier at the rear, and the rear of the toy is grounded together with the rear wheels to maintain a wheelie state. A wheelie support is provided, and the mainspring drive device is releasably engaged with a drive gear mechanism that transmits transmission between the mainspring and the rear wheel, and with any gear in this drive gear mechanism, and when the drive rotational force of the drive gear mechanism is large. A coupling mechanism that rotates idly, a delay mechanism that engages with this coupling mechanism and inhibits the drive rotation in the drive gear mechanism, and a release mechanism that separates the coupling mechanism from the drive gear mechanism after a predetermined rotation of the drive rotation of the drive gear mechanism. A method consisting of a mechanism was adopted.

(Embodiment of the invention) An embodiment of the invention will be described below with reference to the drawings.

Reference numeral 1 shown in the figure is a chassis that is essentially rectangular and long in the front-rear direction. A pair of left and right front wheels 2 are rotatably supported at the front of the chassis 1, and a spring drive device 10 having rear wheels 11 serving as a pair of left and right drive wheels is mounted at the rear of the chassis 1. . Further, a vehicle body 7 is fixed on the chassis 1 so as to cover the spring drive device 10, and has a shape imitating, for example, a so-called frame buggy in an off-road car, and a wing 8 is attached to the rear of the vehicle body 7. is provided.

The illustrated front wheel 2 is rotatably supported by a link 3 that is pivotally supported on the front left and right sides of the chassis 1 so as to be able to swing vertically. A rod 4 that is vertically slidable and engaged and supported by the chassis 1 is connected to the link 3, and a coil spring 5 compressed into the rod 4 cushions the shock to the front wheel 2 when the vehicle is running. It is designed so that

Further, the front portion of the mainspring drive device 10 is pivotally supported so as to be able to swing vertically relative to the chassis 1. That is, as shown in the figure, by engaging the front part of the mainspring drive device 10 with the shaft at approximately the center of the chassis 1, the rear wheel 11 of the mainspring drive device 10 can be moved up and down near the rear of the chassis 1. Form it so that it becomes.

Further, the base end of a slide rod 12 is pivotally supported at the upper front end of the mainspring drive device 10, and the tip of the slide rod 12 is inserted through a positioning protrusion 13 provided upright on the upper surface of the front part of the chassis 1. A coil spring 14 is compressed between the slide rod 13 and the base end of the slide rod 12. That is, the coil spring 14 applies an elastic force to the mainspring drive device 10 so that the rear wheel 11 of the mainspring drive device 10 is always positioned downward, and cushions the shock to the rear wheel 11. , designed to ensure stable running. Further, by moving the entire toy backward while being pushed down, and rotating the rear wheel 11 that is in contact with the running surface backward, the spring driving device 10 can more easily apply the winding spring force to the mainspring 21. You will be able to do it for sure.

The running action obtained by the mainspring drive device 10 is slow at the start of running, and becomes faster after a predetermined time has elapsed or after running a predetermined distance, and a wheelie state is realized by an instantaneous change in running speed. In other words, when there is an instantaneous change in running speed,
The rear wheels 11 suddenly rotate at a faster rotational speed than they had been rotating before, and when the rear wheels 11 try to rotate forward, they are running due to the reaction force generated between them and the running surface and due to inertia. Combined with the excessive rotational force of the rear wheels 11 that exceeds the forward speed of the toy, the toy becomes in a state where the front wheels 2 are significantly lifted upwards, and the toy moves forward using the rear wheels 11 in this state.

And a wheelie weight 9 is placed behind the rear wheel 11.
The weight balance of the entire traveling toy is set at the rear side of the chassis 1 by disposing the toy, so that a wheelie state can be easily obtained and the wheelie state can be easily maintained. In addition, a wheelie support 16 is provided which makes contact with the running surface and maintains the wheelie state. By the way, in the illustration, the wheelie weight 9 is fixed to the rear surface of the wing 8 of the vehicle body 7 that protrudes rearward compared to the rear wheel 11, and the wheelie support 16 is attached to the rear side of the mainspring drive device 10. is projected backwards. In the wheelie state, as shown in FIG.
1. Use the wheelie support 16 to maintain it while driving.

4 to 6 show, by way of example, details of the structure of a mainspring drive device 10 having a speed conversion function. The outline is the driving spring 2
1. A drive gear mechanism 20 that connects the drive rear wheels 11 with each other, and is releasably engaged with one of the gears 22 in this drive gear mechanism 20, and idles when the drive rotational force of the drive gear mechanism 20 is large. A coupling mechanism 23 , a delay mechanism 31 that meshes with the coupling mechanism 23 and engages and inhibits drive rotation in the drive gear mechanism 20 , and a delay mechanism 31 that engages with the coupling mechanism 23 to prevent drive rotation in the drive gear mechanism 20 . and a release mechanism 38 that separates the object from the object.

These driving gear mechanism 20, coupling mechanism 23, delay mechanism 31, and release mechanism 38 are built into the container frame 17 and form one unit, and each mechanism is supported by the side wall of the container frame 17 and the intermediate wall 18. configured.

The connecting mechanism 23 slidably supports the connecting shaft 24 between the side wall of the container frame 17 and the intermediate wall 18. A first flange 26 on which a first gear 25 that meshes with one of the gears 22 in the drive gear mechanism 20 is integrally formed is fixed to the connecting shaft 24 . Further, the second flange 28 and the second gear 29 which are brought into elastic contact with the surface of the first flange 26 by the pressing coil spring 27 compressed on the connecting shaft 24 are inserted through the connecting shaft 24 . On both surfaces of the first flange 26 and the second flange 28 which are in elastic contact with each other, there are concave and convex engagement means 30 that enable relative rotation and idle when the drive torque of the drive gear mechanism 20 is large, and mesh when it is small. (See Figure 5).

The delay mechanism 31 includes a spur gear 33 that meshes with the second gear 29 on a delay shaft 32 supported on the intermediate wall 18.
and is also engaged with a restraining shaft 35 supported on the intermediate wall 18 via a connecting gear 34 secured to the delay shaft 32. This restraining shaft 35 has an intermediate wall 18
A deterrent gear 37 that engages with a deterrent member 36 provided on the
is fixed, and the restraining gear 37 is configured to be rotated by one tooth at a time (see FIG. 6).

The release mechanism 38 pivotally supports a release gear 39 that is rotated by the drive rotational force of the drive gear mechanism 20, and a release cam 40 is disposed on the surface of the release gear 39 so as to be able to rotate. An inclined release surface 41 formed on the release cam 40 as the release gear 39 rotates.
can come into contact with the end of the connecting shaft 24. When abutting, the connecting shaft 24 slides against the elastic force of the pressing coil spring 27, releasing the first gear 25 from the gear 22 (see FIG. 5). still,
By rotating the release cam 40 relative to the release gear 39 and setting its position appropriately, it is possible to adjust the release timing of the delay suppression as the drive gear mechanism 20 finishes a predetermined rotation.

Mainspring drive device 1 configured in this way
The operation of 0 will be briefly explained. First, the running toy is moved backwards while pressing the rear wheel 11 against the running surface to accumulate and apply a winding elastic force to the mainspring 21 of the drive gear mechanism 20, and then the running toy is placed on the running surface in a desired state. At that time, the drive rotational force of the drive gear mechanism 20 is controlled by the delay mechanism 31 via the connection mechanism 23.
The delay deterrent effect works. Then, a sufficiently large elastic force of the driving gear mechanism 20 causes the uneven engagement means 30 in the coupling mechanism 23 to idle, and a slight driving force is transmitted to the rear wheels 11, so that the vehicle runs at a slow speed. During this time, the driving force of the drive gear mechanism 20 is transferred to the release mechanism 38.
The connection mechanism 23 is activated by the release mechanism 38 which is activated after a predetermined rotation of the driving gear mechanism 20.
, and the delay restraint on the driving rotational force is released. Then, the rear wheels 11 are rotated by strong unrestrained driving force, and the vehicle travels at a high speed.

(Effect of the invention) Therefore, this invention provides a running toy that drives and rotates the rear wheels 11 by releasing the winding force accumulated in the mainspring. A mainspring drive device 10 having left and right rear wheels 11 is mounted at the rear of the chassis 1. is pivotally supported by the chassis 1, and the rear wheel 11 is formed to be movable up and down near the rear of the chassis 1. The base end of a slide rod 12 is pivotally supported at the upper front end of the mainspring drive device 10, and the slide rod 12 The tip is slidably attached to the front of the chassis 1, and the slide rod 12
A coil spring 14 is compressed in the mainspring drive device 1 so that the rear wheel 11 is always positioned downward.
A wheelie weight 9 is placed behind the rear wheel 11, which applies elastic force to the rear wheel and makes the weight balance of the entire running toy heavier on the rear side. A wheelie support 16 is provided to maintain the mainspring drive device 10, and the mainspring drive device 10 is releasably engaged with a drive gear mechanism 20 that connects the mainspring 21 and the rear wheel 11 by transmission, and one of the gears in this drive gear mechanism 20. A connecting mechanism 23 that idles when the drive rotational force of the gear mechanism 20 is large, and this connecting mechanism 2
3, and a delay mechanism 31 that engages and inhibits the drive rotation in the drive gear mechanism 20; and a release mechanism 38 that separates the coupling mechanism 23 from the drive gear mechanism 20 after a predetermined rotation in the drive rotation of the drive gear mechanism 20. As a result, the running toy is slow at the start of running, and moves quickly after a predetermined time has elapsed or after running a predetermined distance, and when this instantaneous change in running speed occurs, the rear wheels 11 are rotated until now. The reaction force generated between the rear wheels 11 and the running surface when the rear wheels 11 try to rotate forward, and the rear wheels that exceed the forward speed of the traveling toy that is inertially running. Combined with the excessive rotational force of 11, it is possible to reliably and easily obtain a wheelie condition in which the front wheels 2 are lifted significantly upward, and moreover, it is possible to drive in this condition. Therefore, it becomes an interesting traveling toy that can attract the interest of young children and the like, and that children can enjoy for a long time without getting tired of it, and can provide new ways of playing. Since the mainspring drive device 10 is used, the toy itself can be made smaller and lighter, and a power source such as a dry battery is not required, making it a traveling toy that can be provided at low cost and without incurring costs for entertaining children.

In addition, a wheelie weight 9 is placed behind the rear wheel 11 to balance the weight of the entire toy at the rear, and a wheelie support 16 is provided at the rear of the toy to maintain the wheelie state by contacting the ground with the rear wheel 11. Therefore, even if the difference in the instantaneous change in running speed caused by the mainspring drive device 10 (the difference when the rear wheel 11 suddenly rotates at a faster rotation speed than it was previously rotating) is small, a wheelie condition will not occur. This becomes relatively easy to obtain, and it becomes easy to maintain the wheelie state.Moreover, the wheelie support 16 comes into contact with the running surface, so that the wheelie state can be maintained more reliably.

In particular, the front part of the mainspring drive device 10 mounted on the rear part of the chassis 1 is pivotally supported on the chassis 1, and the rear wheel 1
1 is formed to be movable up and down near the rear of the chassis 1, the base end of the slide rod 12 is pivotally supported on the upper front end of the mainspring drive device 10, and the tip of the slide rod 12 is slidably attached to the front of the chassis 1, A coil spring 14 is compressed in the slide rod 12, and the spring drive device 10 is biased with elastic force so that the rear wheel 11 is always positioned downward. It can be reliably buffered and can run stably even over slight gaps and small obstacles, further improving running stability in normal running and wheelie running conditions. Moreover,
Push the entire toy down and move it backwards, then turn the rear wheels 11
When the rear wheel 11 is grounded on the running surface and rotated backwards, and the spring 21 of the mainspring drive device 10 accumulates and imparts an elastic force, the rear wheel 11 can be easily grounded on the running surface and rotated backwards. This eliminates the risk of damaging the running toy due to excessive pressing force, and also allows children to avoid rear wheels 11.
This makes it possible to bring the vehicle into proper contact with the running surface.

[Brief explanation of drawings]

The drawing shows one embodiment of this invention.
The figure is a side view, Figure 2 is a side view during wheelie, Figure 3 is a plan view of the main part, Figures 4 to 6 show an example of a mainspring drive device, and Figure 4 is a partially cutaway. 5 is a plan view of the release mechanism, and FIG. 6 is a side view of the same. 1... Chassis, 2... Front wheel, 3... Link, 4... Rod, 5... Coil spring, 7... Vehicle body,
8... Wing, 9... Wheelie weight, 10... Spring drive device, 11... Rear wheel, 12... Slide rod, 13... Positioning protrusion, 14... Coil spring, 15... Drive shaft, 16... Wheelie support, 17
...Device frame, 18...Intermediate wall, 20...Drive gear mechanism, 2
1... Spring, 22... Gear, 23... Connection mechanism, 2
4... Connection shaft, 25... First gear, 26... First flange, 27... Pressing coil spring, 28... Second flange, 29... Second gear, 30... Concave/convex engagement means,
31... Delay mechanism, 32... Delay shaft, 33... Spur gear,
34... Connection gear, 35... Suppressing shaft, 36... Suppressing member, 37... Suppressing gear, 38... Release mechanism, 39... Release gear, 40... Release cam, 41... Inclination release surface.

Claims (1)

[Scope of utility model registration request] In a traveling toy that travels by driving and rotating the rear wheels by releasing the winding spring force accumulated in the mainspring, the left and right front wheels are rotatably supported at the front of the chassis, and the left and right rear wheels are rotatably supported at the rear of the chassis. The mainspring drive device is equipped with a mainspring drive device whose front part is pivotally supported by the chassis so that it can swing up and down relative to the chassis, and the rear wheel can move up and down near the rear of the chassis. The base end of the slide rod is pivotally supported at the top of the front end of the mainspring drive device, and the tip of the slide rod is slidably attached to the front of the chassis.The slide rod is equipped with a coil spring, so that the rear wheel is always A wheelie weight is placed at the rear of the rear wheel, which applies elastic force to the mainspring drive device and makes the weight balance of the entire running toy heavier at the rear. A wheelie support is provided to maintain the wheelie state by contacting the ground with the mainspring, and the mainspring drive device is releasably engaged with a drive gear mechanism that transmits transmission between the mainspring and the rear wheel, and one of the gears in this drive gear mechanism to drive the mainspring drive device. A coupling mechanism that idles when the drive rotational force of the gear mechanism is large; a delay mechanism that engages with this coupling mechanism and prevents the drive rotation in the drive gear mechanism; and a delay mechanism that engages and inhibits the drive rotation of the drive gear mechanism; A running toy comprising a release mechanism that separates the mechanism from a drive gear mechanism.