CN111432904A

CN111432904A - Toy car

Info

Publication number: CN111432904A
Application number: CN201980005920.3A
Authority: CN
Inventors: 尤中乾
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-07-17
Also published as: WO2021042244A1

Abstract

A toy vehicle (100) comprising a drive motor (40), a first wheel set (10) and a second wheel set (20) spaced apart in a first direction, and a connecting shaft (30) rotatably connected to the body (101) of the toy vehicle in the first direction; the first wheel set (10) and the second wheel set (20) are both in rotating connection with the vehicle body (101); the first wheel set (10) comprises a first wheel (11) and a second wheel (12) which are arranged at intervals along a second direction, and a first wheel shaft (13) connected between the first wheel (11) and the second wheel (12); the second direction is perpendicular to the first direction, and the first wheel axle (13) is connected to the connecting shaft (30) such that the first wheel axle (13) rotates in the first direction relative to the vehicle body (101). The toy car (100) can ensure that at least three wheels on the uneven road surface are in contact with the ground through the rotation of the first wheel shaft (13), and at the moment, the driving motor (40) can drive at least one wheel to rotate, so that the toy car is ensured to keep moving and pass through the uneven road surface.

Description

Toy car

Technical Field

The application relates to the field of toys, in particular to a toy car with stronger road surface passing capacity.

Background

During the running process of the toy car, the situation of uneven road surface can be frequently encountered. Uneven road surfaces tend to cause inconsistent contact between the wheels of the toy vehicle and the ground. If the wheels of the toy vehicle are rigidly connected to the body, some of the wheels may not be able to land on the ground. At this point, if the toy vehicle is not in an all-wheel drive mode, or if the toy vehicle is described as having its drive wheels suspended and unable to land, the toy vehicle will slip, resulting in the toy vehicle failing to travel normally.

In order to solve the problem, some toy vehicles often need to be provided with a suspension structure for each wheel so as to deal with the situation that the wheels are overhead and the road surface is uneven, but the manufacturing cost of the toy vehicles can be increased by clamping the suspension structures. Moreover, the suspension structure is complicated, and is not completely suitable for some toy vehicles with low cost or simple structure.

Disclosure of Invention

The application provides a toy car that road surface trafficability is stronger specifically includes following technical scheme:

a toy car comprises a driving motor, a first wheel set and a second wheel set which are arranged at intervals along a first direction, and a connecting shaft which is rotatably connected to a body of the toy car along the first direction, wherein the driving motor is used for driving the first wheel set and/or the second wheel set to rotate, the first wheel set and the second wheel set are both rotatably connected with the body, the first wheel set comprises a first wheel and a second wheel which are arranged at intervals along a second direction, and a first wheel shaft which is connected between the first wheel and the second wheel, the second direction is perpendicular to the first direction, and the first wheel shaft is connected with the connecting shaft, so that the first wheel shaft can rotate relative to the body along the first direction.

The driving motor is fixed on the vehicle body and used for driving the second wheel set to rotate.

The second wheel set comprises a third wheel and a fourth wheel which are arranged at intervals along the second direction, and a second wheel shaft which is fixedly connected between the third wheel and the fourth wheel, and the driving motor is used for driving the second wheel shaft to rotate.

The second wheel set comprises a third wheel and a fourth wheel which are arranged at intervals in the second direction, the driving motor comprises a first driving motor and a second driving motor, the first driving motor is used for driving the third wheel to rotate, and the second driving motor is used for driving the fourth wheel to rotate.

The driving motor is used for driving the first wheel shaft to rotate, the first wheel shaft is fixedly connected with the first wheel and the second wheel respectively, the first wheel shaft is further rotatably connected with the connecting shaft, and the driving motor is fixed on the first wheel shaft.

The toy car further comprises a limiting part, the limiting part is fixedly connected to the car body, and the limiting part is used for controlling the rotation angle of the first wheel set relative to the car body in the first direction.

The limiting parts are two limiting holes symmetrically formed in the vehicle body along the first direction, the two limiting holes extend in the vertical direction respectively, and the first wheel shaft penetrates through the two limiting holes simultaneously.

Wherein the two limiting holes are located between the first wheel and the second wheel along the second direction.

The toy car further comprises a rotating motor, the rotating motor is connected between the car body and the connecting shaft, and the rotating motor is used for driving the connecting shaft to rotate relative to the car body along the first direction.

Wherein, the rotating electrical machines are positive and negative double-rotation-direction rotating electrical machines.

The toy car further comprises a communication module, the communication module is electrically connected with the rotating motor and used for receiving an external instruction and transmitting the external instruction to the rotating motor so as to control the rotating motor to rotate relative to the car body.

The toy vehicle of the present application is coupled to the first axle via the coupling shaft such that the first axle is rotatable relative to the body in the first direction. When the toy vehicle travels to uneven road surfaces, the rotation of the first wheel shaft can ensure that at least three wheels are simultaneously contacted with the ground. And because the driving motor can drive the first wheel set and/or the second wheel set to rotate, at least one wheel in the three wheels contacting with the ground can be driven by the driving motor and can rotate relative to the ground. From this, this application toy car has also possessed the ability that keeps advancing state and pass through this unevenness road surface on the unevenness road surface, has promoted toy car's trafficability characteristic, reinforcing taste.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments of the present application will be briefly described below.

FIG. 1 is a schematic representation of a toy vehicle provided in one embodiment of the present application;

FIG. 2 is a schematic representation of a toy vehicle provided in another embodiment of the present application;

FIG. 3 is a schematic representation of a toy vehicle provided in another embodiment of the present application;

FIG. 4 is a partial schematic structural view of a toy vehicle provided in another embodiment of the present application;

FIG. 5 is a partial schematic structural view of a toy vehicle provided in another embodiment of the present application;

fig. 6 is a schematic view of a toy vehicle traveling on an uneven road surface according to another embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1, a toy vehicle 100 of the present application includes a vehicle body 101, a driving motor 40, a first wheel set 10, a second wheel set 20, and a connecting shaft 30. Wherein the first wheel set 10 and the second wheel set 20 are disposed on the vehicle body 101 at intervals along the first direction 001, that is, the first wheel set 10 and the second wheel set 20 are disposed on the vehicle body 101 at intervals along the traveling direction of the toy vehicle 100. It is understood that the first wheel set 10 and the second wheel set 20 are both rotatably connected to the vehicle body 101, i.e. both the first wheel set 10 and the second wheel set 20 are rotatable relative to the vehicle body 101. The driving motor 40 is used to drive the first wheel set 10 and/or the second wheel set 10 to rotate so that the toy vehicle 100 travels on the road surface. The traveling direction of the vehicle body 101 is the first direction 001. The connecting shaft 30 is disposed on the vehicle body 101 along the first direction 001, and the connecting shaft 30 is rotatable clockwise or counterclockwise about an axial direction thereof.

The first wheel set 10 includes a first wheel 11 and a second wheel 12 spaced apart from each other along the second direction 002, the first wheel set 10 further includes a first axle 13 connected between the first wheel 11 and the second wheel 12, the first axle 13 passes through the body 101 along the second direction 002 and is exposed from opposite sides of the body 101, and the first wheel 11 and the second wheel 12 are disposed on opposite sides of the body 101 through the first axle 13. The second direction 002 is perpendicular to the first direction 001. The first wheel axle 13 is connected to the connecting shaft 30, or the first wheel set 10 is described as being connected to the vehicle body 101 via the first connecting shaft 13 and the connecting shaft 30. Thus, when the connecting shaft 30 rotates in the first direction 001 about the vehicle body 101, the first wheel axle 13 also rotates in the first direction 001 relative to the vehicle body 101. Accordingly, the first wheel 11 and the second wheel 12 also rotate with the first wheel shaft 13 in the first direction 001 relative to the body 101.

The connection of the first or second wheel set 10, 20 to the drive motor 40 allows the toy vehicle 100 to be driven in a two-wheel drive mode, i.e., a two-wheel drive mode. And when the first wheel set 10 and the second wheel set 20 are both connected to the driving motor 40, the toy vehicle 100 is driven by four driving wheels. Because toy vehicle 100 travels in first direction 001, body 101 may deflect in first direction 001 and/or second direction 002 as toy vehicle 100 travels to uneven road surfaces. When the body 101 deflects along the second direction 002, the toy vehicle 100 is in a side-tipping state, and the first wheel set 10 and the second wheel set 20 are both in a condition that the wheels on one side contact the ground and the wheels on the other side are lifted, so that the contact area with the ground is small and even the wheels are directly lifted off the ground. And body 101 is deflected in a first direction 001, toy vehicle 100 is in a forward-or backward-like configuration. In this case, one of the wheels of the first wheel set 10 and the second wheel set 20 is in contact with the ground, and the other wheel is lifted up, so that the contact area with the ground is small, and even the other wheel is directly lifted up off the ground.

When the toy vehicle 100 is in a rollover-like state, since each of the first wheel set 10 and the second wheel set 20 provides at least one wheel to reliably contact with the ground, in the case that the driving motor 40 continuously drives the first wheel set 10 and/or the second wheel set 20, the toy vehicle 100 can keep a traveling state through at least one wheel (e.g., the first wheel 11 and/or the third wheel 21) contacting with the ground and driven by the driving motor 40, and finally drive off an uneven road surface. When the toy vehicle 100 is in a forward-turning or backward-turning-like state, one of the wheels of the first wheel set 10 and the second wheel set 20 may be lifted, and if the one of the wheels is just the wheel driven by the driving motor 40 and the other wheel is the driven wheel, the toy vehicle 100 may lose the driving force for traveling, and thus may not keep the traveling state and rest on an uneven road surface.

There is also a case where even if both of the drive wheels of the toy vehicle 100 come into contact with the ground and the driving force is generated, the toy vehicle 100 may not be able to maintain the traveling state because the grip of the toy vehicle 100 with the ground is insufficient or the toy vehicle 100 is described as having an insufficient number of wheels to come into contact with the ground. In the case of the toy vehicle 100 according to the present invention, when the body 101 is in the forward or backward turning posture and the first wheel set 10 is raised, the driving force of the toy vehicle 100 is lost if the driving motor 40 drives the first wheel set 10 and does not drive the second wheel set 20. At this time, the first wheel set 10 can rotate relative to the vehicle body 101 in the first direction 001 by the connecting shaft 30. By rotating the first wheel set 10 and lowering the first wheel 11 or the second wheel 12 into contact with the ground, at least one wheel of the first wheel set 10 driven by the driving motor 40 can be rotated relative to the ground. And the second wheel set 20 provides enough grip because of contact with the ground, the toy vehicle 100 can form a more stable contact posture with the ground through the first wheel 11 or the second wheel 12 which is in opposite contact with the ground after rotating, thereby keeping a running state and continuing running on an uneven road surface.

It should be noted that in the above scenario, the second wheel set 20 may or may not be driven by the driving motor 40. Because of the foregoing, even if the toy vehicle 100 has at least two drive wheels in contact with the ground, there may be situations where the grip is insufficient to maintain the travel state. The toy vehicle 100 of the present application, through the rotation of the connecting shaft 30, enables the first wheel set 10 to provide a wheel to rotate relative to the ground, so as to improve the grip and driving force of the toy vehicle 100, and further maintain the traveling state and continue to travel on uneven road.

In the embodiment of fig. 1, the first wheel set 10 may be a front wheel of the toy vehicle 100 and the second wheel set 20 may be a rear wheel of the toy vehicle 100. In other embodiments, the first wheel set 10 may be the rear wheel of the toy vehicle 100, and the second wheel set 20 may be the rear wheel of the toy vehicle 100, without affecting the practice of the present invention.

In the embodiment of fig. 1, the driving motor 40 is also fixed in the vehicle body 101 for driving the second wheel set 20 to rotate. It will be appreciated that when the toy vehicle 100 is turned backwards, the second wheel set 20 remains in contact with the ground, and the rotation of the first wheel set 10 via the connecting shaft 30 provides the first wheel 11 or the second wheel 12 to contact the ground, thereby increasing the contact area between the toy vehicle 100 and the ground, increasing the grip of the toy vehicle 100, and helping the second wheel set 20 to drive the toy vehicle 100 to keep moving. When the toy vehicle 100 is turned forward, the first wheel set 10 maintains contact with the ground, and the posture of the toy vehicle 100 can be changed by the rotation of the connecting shaft 30, so that one wheel of the second wheel set 20 is provided to contact with the ground, and a driving force is provided to continue the toy vehicle 100.

Referring to fig. 2, the second wheel set 20 includes a third wheel 21 and a fourth wheel 22 spaced apart along the second direction 002, and the second wheel set 20 further includes a second wheel axle 23 fixedly connected between the third wheel 21 and the fourth wheel 22. The driving motor 40 is used for driving the second wheel axle 23 to rotate, so as to simultaneously drive the third wheel 21 and the fourth wheel 22 of the second wheel set 20 to rotate. In the embodiment of fig. 2, first axle 13 also includes a curved segment 131, curved segment 131 being used to give way to components within toy vehicle 100. Both the first wheel 11 and the second wheel 12 are now rotationally coupled to the first wheel axle 13, so that the toy vehicle 100 including the curved segment 131 can still travel forward via the first wheel set 10.

Referring back to fig. 1, the second wheel set 20 includes third and

fourth wheels

21 and 22 spaced apart from each other along the second direction 002, and the driving motor 40 further includes first and

second driving motors

41 and 42. The first drive motor 41 is used to drive the rotation of the third wheel 21, and the second drive motor 42 is used to drive the rotation of the fourth wheel 22. At this time, when the toy vehicle 100 turns forward and only one wheel of the second wheel set 20 can contact the ground through the rotation of the connecting shaft 30, the third wheel 21 can be driven by the first driving motor 41 alone, or the fourth wheel 22 can be driven by the second driving motor 42 alone, so as to complete the function of providing driving force for the toy vehicle 100. The embodiment of fig. 1 and 2 is an embodiment in which the driving motor 40 drives the second wheel set 20, but in this case, the first wheel set 10 may also have a driving force, and for the driving method of the first wheel set 10, the following embodiment may be referred to.

Referring to fig. 3, the driving motor 40 is used for driving the first wheel axle 13 to rotate, i.e. the driving motor 40 is used for driving the first wheel set 10 to rotate. At this time, the first wheel shaft 13 is fixedly connected to the first wheel 11 and the second wheel 12, respectively, so as to ensure that the driving force of the driving motor 40 on the first wheel set 13 can be transmitted to the first wheel 11 and the second wheel 12. The first wheel set 10 needs to be rotatably connected with respect to the vehicle body 101, so the first wheel axle 13 is also rotatably connected with the connecting shaft 30 to ensure that the first wheel set 10 can rotate with respect to the vehicle body 101 and provide driving force. In the embodiment of fig. 3, since the first wheel set 10 is rotatable relative to the vehicle body 101 about the first direction 001, the driving motor 40 is not fixedly connected to the vehicle body 101, but the driving motor 40 is fixed to the first wheel axle 13. Therefore, when the first wheel set 10 rotates relative to the vehicle body 101, the driving motor 40 keeps the position of the first wheel set 10 unchanged, and the driving force is stably provided for the first wheel 11 and the second wheel 12.

In one embodiment, toy vehicle 100 further includes a restraint portion (not shown). The limiting portion is fixedly connected to the vehicle body 101 and is used for controlling the rotation angle of the first wheel set 10 around the first direction 001 relative to the vehicle body 101. The stopper prevents the first wheel set 10 from rotating excessively with respect to the vehicle body 101, and prevents the side surface of the first wheel 10 or the second wheel 20 from contacting the ground surface, which may otherwise cause a friction obstacle to the movement of the toy vehicle 100. Referring to fig. 4, the limiting portion may be provided as two limiting holes 51 symmetrically formed on two side walls of the vehicle body 101, and the two limiting holes 51 respectively extend a certain length in a direction perpendicular to a plane of the first direction 001 and the second direction 002. Since the first direction 001 is a horizontal direction, the rotation of the first wheel set 10 with respect to the vehicle body 101 includes a direction of the vertical direction. After the first wheel axle 13 penetrates through the two limiting holes 51, the two limiting holes 51 extending in the vertical direction can limit the first wheel axle 13 in the vertical direction, so as to control the rotation angle of the first wheel set 10 relative to the vehicle body 101.

With continued reference to fig. 4, because the first wheel 11 and the second wheel 12 are generally exposed to the sides of the toy vehicle 100, or as depicted the body 101 is generally positioned between the first wheel 11 and the second wheel 12 in the second direction 002, the two retaining holes 51 are also positioned between the first wheel 11 and the second wheel 12 in the second direction 002. To limit the rotation of the first wheel shaft 13, the limiting hole 51 needs to pass through the center positions of the first wheel 11 and the second wheel 12. Therefore, the two limiting holes 51 are formed between the first wheel 11 and the second wheel 12, the first wheel 11 and the second wheel 12 can respectively shield the two limiting holes 51, open holes of the toy car body 101 are prevented from being exposed, and the appearance consistency of the toy car 100 can be improved.

In the above embodiment, the first wheel set 10 is in a passive rotation mode of the connecting shaft 30 by the action of the gravity of the toy vehicle 100 through the rotation of the connecting shaft 30 relative to the vehicle body 101. When the weight of the toy vehicle 100 is light or the rotation of the connecting shaft 30 is jammed, the toy vehicle 100 may not be able to ensure that the connecting shaft 30 rotates in place by gravity. Thus, referring to fig. 5, one embodiment, toy vehicle 100 further includes a rotating electric machine 60. The rotating electric machine 60 is connected between the vehicle body 101 and the connecting shaft 30, and the rotating electric machine 60 is used for driving the connecting shaft 30 to rotate relative to the vehicle body in the first direction 001. That is, after the rotary electric machine 60 is introduced, the toy vehicle 100 may control the turning motion of the first wheel set 10 with respect to the vehicle body 101 through the rotary electric machine 60. In the case where the toy vehicle 100 is not sufficiently heavy to provide sufficient downforce to increase the friction between the first wheel set 10 and the ground, or the rotation of the connecting shaft 30 is jammed, the toy vehicle 100 can assist the rotation of the first wheel set 10 relative to the vehicle body 101 through active rotation control of the rotating electric machine 60.

Further, the rotating electric machine 60 may be implemented by a forward and reverse double-rotation motor. That is, the rotation control of the first wheel set 10 by the toy vehicle 100 can actively select the wheel that comes into contact with the ground as the first wheel 11 or the second wheel 12 by the active forward and reverse rotation of the rotating electric machine 60. When one side of the toy vehicle 100 is elevated, its lower wheels may be spaced farther from the ground than its upper wheels relative to the vehicle body 101 because of the uneven ground (see fig. 6). In the illustration of fig. 6, the first wheel 11 of the toy vehicle 100 is lower than the second wheel 12, but the second wheel 12 is closer to the ground because the ground below the first wheel 11 is also lower. At this time, the toy vehicle 100 can only increase the rotation angle of the connecting shaft 30 under its own weight, so that the first wheel 11 contacts with the ground at a larger rotation angle position and drives the toy vehicle 100 to move. Then, if there is a limit from the stopper, the toy vehicle 100 loses power and stops on an uneven road surface and cannot continue to travel when the first wheel 11 still cannot contact the ground when rotating to the maximum angle. The introduction of the rotating motor 60 enables the toy vehicle 100 to rotate the connecting shaft 30 in the opposite direction through the active control of the rotating motor 60, and the toy vehicle 100 achieves the posture that the three wheels are all in contact with the ground through the contact of the second wheels 12 with the ground.

Conversely, because the rotating motor 60 is a motor with forward and reverse double rotation directions, when the toy vehicle 100 needs to actively control the first wheel 11 to contact with the ground in a situation opposite to that in fig. 6, the first wheel 11 can be rotated to contact with the ground through the rotating motor 60 to provide a posture for the toy vehicle 100 to continue to travel. Further, when the toy vehicle 100 is stuck on uneven ground, the rotary motor 60 can be rapidly rotated back and forth by controlling the connecting shaft 30 to provide high frequency shaking of the toy vehicle 100 relative to the ground. Such movement may also assist in releasing the toy vehicle 100 from an uneven road surface and returning to a normal traveling condition.

In one embodiment, toy vehicle 100 may further include a communication module (not shown). The communication module is used for communication between the toy vehicle 100 and the outside and can receive outside commands. I.e., toy vehicle 100 is provided with remote control functionality. The communication module is electrically connected to at least the rotating electrical machine 60, and the communication module may transmit an external command to the rotating electrical machine 60, or the communication module may transmit an external command to a control system of the toy vehicle 100 and be connected to the rotating electrical machine 60 by the control system. The above arrangement provides the toy vehicle 100 with a remote control function and also provides a function for the user to control the rotating electric machine 60 via the communication module. The user can actively control the rotation direction or speed of the rotating electrical machine 60, and thus the rotation of the first wheel set 10 relative to the body 101, by observing the toy vehicle 100 and the surrounding environment, so as to achieve the effect of remotely controlling the body posture of the toy vehicle 100. It will be appreciated that through the provision of the communication module, a user may actively control the toy vehicle 100 to effect rotation of the first wheel set 10 on uneven road surfaces and enhance the ability of the toy vehicle 100 to pass over uneven road surfaces.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. A toy car is characterized by comprising a driving motor, a first wheel set and a second wheel set which are arranged at intervals along a first direction, and a connecting shaft which is connected to a body of the toy car in a rotating mode along the first direction, wherein the driving motor is used for driving the first wheel set and/or the second wheel set to rotate, the first wheel set and the second wheel set are both connected with the body in a rotating mode, the first wheel set comprises a first wheel and a second wheel which are arranged at intervals along a second direction, and a first wheel shaft which is connected between the first wheel and the second wheel, the second direction is perpendicular to the first direction, and the first wheel shaft is connected with the connecting shaft, so that the first wheel shaft rotates relative to the body along the first direction.

2. The toy vehicle of claim 1, wherein the drive motor is secured to the body and is configured to drive the rotation of the second set of wheels.

3. The toy vehicle of claim 2, wherein the second set of wheels includes third and fourth wheels spaced apart in the second direction, and a second axle fixedly coupled between the third and fourth wheels, the drive motor being configured to drive the second axle in rotation.

4. The toy vehicle of claim 2, wherein the second set of wheels includes third and fourth wheels spaced apart in the second direction, and the drive motor includes a first drive motor for driving the third wheel in rotation and a second drive motor for driving the fourth wheel in rotation.

5. The toy vehicle of claim 1, wherein the drive motor is configured to drive the first axle in rotation, the first axle is fixedly coupled to the first wheel and the second wheel, the first axle is further rotatably coupled to the coupling shaft, and the drive motor is fixed to the first axle.

6. The toy vehicle of any one of claims 1-5, further comprising a restraint portion fixedly attached to the body, the restraint portion configured to control a rotational angle of the first wheel set relative to the body in the first direction.

7. The toy car of claim 6, wherein the limiting portion is two limiting holes symmetrically formed in the car body along the first direction, the two limiting holes extend in a vertical direction, and the first wheel shaft penetrates through the two limiting holes.

8. The toy vehicle of claim 7, wherein two of the restraint apertures are located between the first wheel and the second wheel in the second direction.

9. The toy vehicle of any one of claims 1-5, further comprising a rotating electrical machine coupled between the body and the connecting shaft, the rotating electrical machine configured to drive the connecting shaft in rotation relative to the body in the first direction.

10. The toy vehicle of claim 9, further comprising a communication module electrically coupled to the rotating electrical machine, the communication module configured to receive an external command and transmit the external command to the rotating electrical machine to control the rotating electrical machine to rotate relative to the body.