JP2020103897A - Wheel eccentric structure and travel toy - Google Patents

Abstract

To provide a wheel eccentric structure capable of tilting one end of a vehicle.SOLUTION: There is provided a wheel eccentric structure, the wheel eccentric structure comprises: a hub; an eccentric gear; and a wheel casing. An inner wall of the hub comprises a ring gear along a circumferential direction, the ring gear and the eccentric gear are engaged. The wheel casing is rotatably mounted on the hub, and an eccentric position restriction groove is installed on an edge of the wheel casing. The eccentric gear is provided in the eccentric position restriction groove, the eccentric position restriction groove is moved with the eccentric gear and rotate the wheel casing. On the wheel casing, there is provided a position restriction slide groove which is connected to a position restriction block on a chassis so as to slide and engage to the position restriction block. The position restriction block slides along the position restriction slide groove, and further restricts a rotation width of the wheel casing.SELECTED DRAWING: Figure 2

Description

The present invention relates to the technical field of traveling toys, and particularly to a wheel eccentric structure and a traveling toy equipped with the wheel eccentric structure.

Traveling toys such as car toys are one of the toys most liked by children. For the sake of attention, the outer shape of each of the conventional running toys is designed to mimic a real vehicle as much as possible. Therefore, in many of the running toys in the market these days, the tire is fixedly mounted on the hub, and the connecting member is fixedly installed at the center of the hub.The drive motor of the running toy is connected through the transmission mechanism. When the drive toy is connected to the member, the hub is driven to rotate, and further the running toy is moved forward or backward. Such a traveling toy can only imitate the forward and backward movements of the actual vehicle, for example, the head of the vehicle tilts when the traveling toy is activated, and cannot simulate other motion states of the actual vehicle. Since it is not possible, there are disadvantages such as monotonous operation and low hobby.

In order to overcome the deficiencies of the prior art, a first object of the present invention is to provide a wheel eccentric structure capable of tilting one end of a vehicle.

The first object of the present invention is realized by adopting the following technical aspects.

The wheel eccentric structure includes a hub, an eccentric gear, and a wheel casing, a ring gear is installed on the inner wall of the hub along the circumferential direction, the ring gear and the eccentric gear are engaged so as to mesh with each other, and the wheel casing is It is rotatably mounted on the hub, and the eccentric position limiting groove is installed on the edge of the wheel casing, the eccentric gear is arranged in the eccentric position limiting groove, and the eccentric position limiting groove moves together with the eccentric gear. There is further provided a position limiting slide groove used to rotate the wheel casing and to be slidably connected to the position limiting block on the chassis for connection to the wheel casing, The position limiting block slides along the position limiting sliding groove and further limits the turning width of the wheel casing.

Furthermore, the wheel casing includes a first wheel casing and a second wheel casing, and the eccentric position limiting groove of the first wheel casing and the eccentric position limiting groove of the second wheel casing are butted against each other to form an eccentric position limiting space. And the eccentric gear is arranged in the eccentric position limiting space.

Further, the position limiting sliding groove has an arc shape, and both ends of the position limiting sliding groove are fixedly connected to the inner wall of the wheel casing.

Furthermore, the concave side of the arc is facing the eccentric gear.

Further, a first position limiting point is installed at one end of the position limiting sliding groove, and a second position limiting point is installed at the other end.

Further, the eccentric structure further includes a tire, the tire fixedly mounted on the hub.

A second object of the present invention is to provide a traveling toy equipped with a wheel eccentric structure capable of simulating a motion state such as one end of the vehicle tilting in an actual vehicle.

The second object of the present invention is realized by adopting the following technical aspects.

The traveling toy equipped with the wheel eccentric structure further includes a chassis, a drive mechanism and a transmission member, and the drive mechanism is fixedly mounted on the chassis and is driven to rotate the eccentric gear through the transmission member. ..

Furthermore, the protective frame further includes a first connecting end and a second connecting end, the first connecting end fixedly connected to one end of the chassis to form a first fixed connecting point, The second connection end is fixedly connected to the other end of the chassis to form a second fixed connection point.

Furthermore, the protective frame is arcuate.

Further, the first connecting end abuts an outer edge of the vehicle body proximate the first connecting end and/or the second connecting end abuts an outer edge of the vehicle body proximate the second connecting end.

The beneficial effects of the present invention as compared with the prior art are as follows.

The wheel eccentric structure provided by the present invention includes a hub, an eccentric gear, and a wheel casing. When the eccentric structure is mounted on the front wheel of the traveling toy and when the traveling toy is activated to move forward, the static friction between the hub and the ground keeps the hub still in its original state, and the eccentric gear Moves from the bottom to the top along the clockwise direction of the ring gear. Further, due to the position limitation of the eccentric gear in the eccentric position limiting groove, the eccentric position limiting groove also moves upward, and further rotates the wheel casing. At the same time, the eccentric gear approaches the end. The chassis is moved upward so that the traveling toy is in a state in which the front end of the chassis is tilted at the time of starting. It moves upwards according to the chassis, the position limiting block can also slide from the lower side to the upper side along the position limiting sliding groove, and the wheel casing can rotate when the position limiting block slides to the position limiting point. However, since the eccentric gear can rotate by driving the ring gear, it drives the traveling toy to move forward. Therefore, the traveling toy equipped with the wheel eccentric structure can realize a state in which the front end is tilted at the time of start-up and a state in which the rear end is tilted at the time of reverse rotation, so that the operation of the traveling toy is diversified and the taste is further improved. To do.

Further, another traveling toy according to the present invention includes a first hub provided with front wheels capable of advancing on a road surface by rotating in a first direction, a ring gear formed on an inner circumference of the first hub, and a ring gear. An eccentric gear that meshes with and is movable along the inner circumference of the first hub, a drive mechanism that rotationally drives the eccentric gear, and a chassis that supports the drive mechanism are provided. At the start of driving, the drive mechanism rotates the eccentric gear so that the eccentric gear moves along the inner circumference of the first hub to make the distance between the road surface and the eccentric gear different and the distance between the road surface and the eccentric gear. Is configured to execute the first stage in which the chassis tilts with respect to the road surface in accordance with the change of The chassis typically corresponds to a component that constitutes the framework of the vehicle body.

Further, the traveling toy may further include a second hub provided with a rear wheel that can be advanced on the road surface by rotating in the first direction. Further, a limiting mechanism for limiting the moving range of the eccentric gear with respect to the inner circumference of the first hub may be further provided. Then, after the execution of the first step, the restriction mechanism stops the movement of the eccentric gear along the inner circumference of the first hub, and the ring gear meshing with the eccentric gear rotates in the first direction to advance by the second step. It may be configured to do so.

The limiting mechanism can be implemented in various ways. For example, it may be realized by inserting a wheel casing inside the front wheel. An eccentric position limiting groove for disposing an eccentric gear is provided in the wheel casing. Then, as the eccentric gear moves along the inner circumference of the first hub, the wheel casing is configured to rotate (rotate) relative to the first hub together with the eccentric gear. The wheel casing is provided, for example, concentrically with the center of the first hub so as to rotate relative to the first hub. For example, when the wheel casing rotates by a predetermined angle, a position limiting block that prevents the wheel casing from rotating further may be provided integrally with the chassis. The wheel casing may be provided with a position limiting sliding groove that allows the position limiting block to slide within a predetermined range. When the rotation of the wheel casing is hindered, the relative movement of the eccentric gear that engages with the wheel casing along the inner circumference of the first hub stops. Therefore, the ring gear meshing with the eccentric gear rotates in the first direction. Therefore, the traveling toy moves forward.

It is preferable that the eccentric gear is configured to move along the inner periphery of the front side (the traveling direction side from the center of the front wheel) of the inner periphery of the first hub at the start of driving. With such a configuration, when the tilting of the chassis returns, it is possible to accelerate the forward movement of the wheels by the weight of the chassis.

Similarly, the rear wheel may also include a ring gear formed on the inner circumference of the second hub and a second eccentric gear that meshes with the ring gear and is movable along the inner circumference of the second hub. The eccentric gear and the second eccentric gear are preferably configured to rotate in the same direction by the same drive mechanism. That is, when the eccentric gear rotates counterclockwise as viewed from one side surface, it is preferable that the second eccentric gear also rotates counterclockwise. When the eccentric gear moves along the inner circumference of the front side region of the inner circumference of the first hub, the second eccentric gear moves toward the rear side (center of the rear wheel) of the inner circumference of the second hub. It may be provided so as to be located in a region on the side opposite to the traveling direction).

It is an outline outline view of a wheel eccentric structure provided by the present invention. It is a schematic diagram of the internal structure of the wheel eccentric structure shown in FIG. FIG. 2 is a schematic view of engagement between an eccentric gear of the wheel eccentric structure shown in FIG. 1 and a wheel casing. It is an outline schematic diagram of a running toy provided by the present invention. FIG. 5 is a schematic structural view of a transmission member of the traveling toy shown in FIG. 4. 6 is a partially enlarged view of a portion A of the transmission member shown in FIG. 5.

Hereinafter, the present invention will be further described with reference to the drawings and specific modes for carrying out the invention. The respective embodiments or technical features described below may be arbitrarily combined with each other to form a new embodiment as long as they do not conflict with each other.

As shown in FIGS. 1 to 3, the wheel eccentric structure provided by the invention includes a hub 1, an eccentric gear 2, and a wheel casing 3. Here, a ring gear 11 is installed on the inner wall of the hub 1 along the circumferential direction, the ring gear 11 and the eccentric gear 2 are engaged so as to mesh with each other, and when the eccentric gear 2 rotates, the ring gear 11 It can be driven to rotate. A tire 12 is fixedly attached to the hub 1, and the tire 12 is preferably manufactured by using a rubber material. The wheel casing 3 is rotatably mounted on the hub 1. The eccentric position limiting groove 31 is installed on the edge of the wheel casing 3, the eccentric gear 2 is arranged in the eccentric position limiting groove, the eccentric position limiting groove 31 moves together with the eccentric gear 2, and the wheel casing 3 rotates. Try to move. A position limiting sliding groove 32 is further installed on the wheel casing 3, and correspondingly, a position limiting block 41 is installed on the chassis 4, and the position limiting block 41 and the position limiting sliding groove are provided. 32 is slidably connected to the position limiting block 41, and the position limiting block 41 slides along the position limiting sliding groove 32 to further limit the rotation width of the wheel casing 3. In the present embodiment, the wheel casing 3 includes a first wheel casing 33 and a second wheel casing 34. Here, the eccentric position limiting groove 31 on the first wheel casing 33 and the eccentric position limiting groove 31 on the second wheel casing 34 are butted against each other to form an eccentric position limiting space 35. Since the eccentric gear 2 is arranged in the eccentric position limiting space 35, the position of the eccentric gear 2 is limited in the eccentric position limiting space 35, and when the eccentric gear 2 moves, the eccentric position limiting space 35 also moves with it. Further, the wheel casing 3 is rotated. Further, in the present embodiment, the first wheel casing 33 is arranged on one side close to the chassis 4, and the second wheel casing 34 is arranged on the other side. It is more preferable that the position limiting sliding groove 32 is fixedly provided on the first wheel casing 33 by the first wheel casing 33 being close to the chassis 4. Here, the position limiting sliding groove 32 preferably has an arc shape, and the concave side of the arc shape faces the eccentric gear 2. Both ends of the position limiting sliding groove 32 are fixedly connected to the inner wall of the wheel casing 3, and as shown in FIG. 2, one end of the position limiting sliding groove 32 has a first end on the inner wall of the first wheel casing 33. Of the first wheel casing 33 is fixedly connected to the second connection point 332 of the first wheel casing 33. In the present embodiment, the use of the arc-shaped position limiting sliding groove is to better correspond to the movement trajectory of the eccentric gear 2. Further, as shown in FIGS. 1 and 2, a first position limiting point 321 is installed at one end of the position limiting sliding groove 32, and a second position limiting point 322 is installed at the other end. There is. Here, the first position limiting point 321 is close to the first connection point 331, and the second position limiting point 322 is close to the second connection point 332. In this embodiment, the first position limiting point 321 is close to the ground, and the second position limiting point 322 is far from the ground. The setting of the position limiting point can better protect the wheel casing 3, prevent the wheel casing 3 from directly colliding with the position limiting block 41, and also set one rotation width in the wheel casing 3.

As shown in FIGS. 4 to 6, the present invention further provides a traveling toy equipped with the wheel eccentric structure provided by the above-described invention. Subsequently, the traveling toy further includes a chassis 4, a drive mechanism 5 and a transmission member 6. Here, as shown in FIG. 5, the drive mechanism 5 is fixedly mounted on the chassis 4, and is driven so as to rotate the eccentric gear 2 through the transmission member 6. In this embodiment, the drive mechanism 5 is preferably a small motor, and the transmission member 6 is preferably fixedly connected to the output shaft 51 of the motor. As shown in FIG. 6, the transmission member includes a gear group 61 and a rotary shaft 62, one end of the gear group 61 is fixedly connected to the motor output shaft 51, and the other end of the gear group 61 is fixedly connected to the rotary shaft 62. It is preferable that the eccentric gear 2 is fixedly mounted on the rotary shaft 62. Further, the gear group 61 includes a first gear 611, a second gear 612, and a third gear 613. The first gear 611 is fixedly mounted on the motor output shaft 51, and is engaged and connected so as to mesh with the second gear 612, and the second gear 612 meshes with the third gear 613. Thus, the third gear 613 is fixedly mounted on the rotating shaft 62.

As shown in FIG. 4, the eccentric structure provided by the present invention is mounted on both the front end and the rear end of the chassis. When the running toy tries to move forward, the drive mechanism 5 is activated at the moment of starting. The principle of motion of the front wheels is as follows. Due to the friction between the tire 12 and the ground, both the hub 1 and the tire 12 maintain the original state, that is, the stationary state, and at this time, the eccentric gear 2 of the front wheel moves upward along the ring gear 11. Moving. Further, the wheel casing 3 limits the position of the eccentric gear 2 in the eccentric position limiting space 35, so that the eccentric position limiting space 35 also moves upward and further rotates the wheel casing 3. At this time, as the traveling toy tries to move forward, the wheel casing 3 rotates clockwise, and at the same time, the chassis moves upward in accordance with the eccentric gear 2 and the position limiting block 41 slides in position limiting. When the position limiting block 41 moves to the second position limiting point 322 by moving upward along the groove 32 and sliding from the first position limiting point 321 to the second position limiting point 322, The wheel casing 3 stops rotating. Therefore, the eccentric gear 2 stops the upward movement of the front wheel along the inner circumference of the hub 1 and rotates the front wheel via the ring gear 11 meshing with the eccentric gear 2. When the front wheels rotate, the weight of the vehicle body moves the eccentric gear 2 downward, so that the tilted chassis returns to its original state. In addition, the position limiting block 41 moves downward along the position limiting sliding groove 32 and slides from the second position limiting point 322 to the first position limiting point 321 to move to the first position limiting point. Move to 321. By continuing to drive the eccentric gear 2, the traveling toy advances in this state. The motion principle of the rear wheel of the traveling toy is as follows. Although the principle of motion of the rear wheel is almost the same as that of the front wheel, the eccentric gear 2 of the rear wheel moves downward along the ring gear 11, rotates the wheel casing 3, and further moves the position limiting block 41 downward. Different things to do. However, since the position limiting block 41 is already located at the first position limiting point 321, the position limiting block 41 does not move downward again, and the wheel casing 3 cannot rotate further. Therefore, the eccentric gear 2 Also does not move downward. Therefore, when the ring gear 11 is driven to rotate, the rear wheels are driven to move forward.

Subsequently, when the traveling toy suddenly rotates in the reverse direction simultaneously with the forward movement, the hub 1 and the tire 12 further retain the original forward movement due to inertia. Due to the strong reverse torque output from the drive mechanism 5, the eccentric gear 2 of the rear wheel moves upward from below along the ring gear 11 to rotate the wheel casing 3 counterclockwise. At the same time, the rear end of the chassis moves upward and is in a tilted state, and the position limiting block 41 moves from the first position limiting point 321 to the second position along the position limiting sliding groove 32. Move toward the limit point 322. The movement of the front wheels in this process is similar to the movement of the rear wheels at startup, as described above, so the front end of the chassis does not tilt.

Furthermore, when the traveling toy suddenly brakes simultaneously with the forward movement, the drive mechanism suddenly stops rotating, the eccentric gear 2 of the rear wheel stops rotating, and the hub 1 still retains its original forward traveling state due to inertia. Then, it rotates counterclockwise. Further, as the eccentric gear 2 and the ring gear 11 mesh with each other, the hub 1 moves the rear-wheel eccentric gear 2 upward, and the eccentric position limiting space 35 also moves upward accordingly, and further the wheel casing. 3 is rotated counterclockwise, the rear end of the chassis 4 is tilted, and the position limiting block 41 moves from the first position limiting point 321 to the second position limiting point along the position limiting sliding groove 32. Slide to 322. The operation of the front wheels is explained by the same principle, and at this time, the front wheels do not tilt.

Furthermore, the traveling toy in this embodiment further includes a protective frame 7, and the protective frame 7 is preferably mounted above the traveling toy. The protection frame 7 includes a first connection end 71 and a second connection end 72. The first connecting end 71 is fixedly connected to one end of the chassis 4 to form a first fixed connecting point 711, and the second connecting end 72 is fixedly connected to the other end of the chassis 4 to form a second fixed connecting point. 721 is formed. The protection frame 7 mainly performs a protective action and protects the traveling toy from damage, thereby extending the service life of the traveling toy. Subsequently, the protective frame 7 is preferably arcuate. This is because when the running toy suddenly stops, the running toy further retains its original inertial force to move forward, and in addition, the rear wheel tilts, causing the running toy to overturn in the forward direction, that is, the running toy to fall upside down. I will end up. On the other hand, if an arc-shaped protective frame is added to the upper end of the traveling toy, the traveling toy can be rolled according to the arc shape by utilizing inertia, and the rolling of the traveling toy can be realized. It is diversified and the taste is further improved. Further, the first connecting end 71 contacts an outer edge of the vehicle body proximate to the first connecting end 71, and/or the second connecting end 72 has an outer edge of the vehicle body proximate to the second connecting end 72. Touch. In this way, during rolling of the vehicle body, the vehicle body can make a smoother transition from the contact of the lower end with the ground to the contact of the protective frame with the ground.

As described above, the traveling toy equipped with the eccentric structure can simulate a real vehicle, in which the front end of the chassis tilts at startup, the rear end of the chassis tilts at reverse rotation, and the chassis at braking during forward travel. Since the rear end tilts and the front end of the chassis tilts during braking when moving backward, the operation of the traveling toy is further diversified and the taste is further enhanced.

Specifically, when the drive is started, the drive mechanism rotates the eccentric gear, so that the eccentric gear moves along the inner circumference of the first hub and the distance between the road surface and the eccentric gear can be made different. .. At this time, it is preferable to configure each component so that the first hub does not rotate. Further, it is preferable that the eccentric gear be configured so as to have a large distance from the road surface, that is, to move upward along the inner circumference of the first hub. The eccentric gear, the drive mechanism and the chassis are engaged. Therefore, as the eccentric gear moves, for example, upward on the inner circumference of the first hub, the front end of the chassis can be moved upward and the chassis can be tilted. By driving the eccentric gear so as to move upward vigorously, it becomes possible to operate the front wheels to momentarily move away from the road surface. Therefore, it becomes possible to provide a traveling toy capable of tilting one end of the vehicle.

Further, when the limiting mechanism is further provided, since the movement of the eccentric gear along the inner circumference of the first hub is stopped by the limiting mechanism, the ring gear that meshes with the eccentric gear becomes the first by continuing the driving of the eccentric gear. It becomes possible to rotate the vehicle in the direction and move the vehicle forward. Since the eccentric gear returns to the lower position while rotating the ring gear, the vehicle tilted in the first stage returns to the original state.

Similarly, in the case where the rear wheel also includes a ring gear formed on the inner circumference of the second hub and a second eccentric gear that meshes with the ring gear and is movable along the inner circumference of the second hub, the eccentric gear Prevents the second eccentric gear from moving in the direction away from the road surface when moving upward in the region on the front side of the inner circumference of the first hub. It is possible to move the area on the rear side downward along the inner circumference to approach the road surface. Therefore, the tilting of the chassis can be further increased. At this time, with the same configuration as the first eccentric gear, by stopping the relative movement of the second eccentric gear along the inner circumference of the second hub, the ring gear meshing with the second eccentric gear moves in the first direction. It becomes possible to rotate and accelerate the forward movement of the traveling toy.

The above-described embodiments are merely embodiments of the present invention, and the scope of protection of the present invention is not limited thereby, and insubstantial changes and replacements made by those skilled in the art based on the present invention are Both belong to the scope of protection of the present invention.

1 hub, 11 ring gear, 12 tire, 2 eccentric gear, 3 wheel casing, 31 eccentric position limiting groove, 32 position limiting sliding groove, 321 1st position limiting point, 322 2nd position limiting point, 33 1st Wheel casing, 331 First connection point, 332 Second connection point, 34 Second wheel casing, 35 Eccentric position limiting space, 4 Chassis, 41 Position limiting block, 5 Drive mechanism, 51 Output shaft, 6 Transmission member, 61 gear group, 611 1st gear, 612 2nd gear, 613 3rd gear, 62 rotating shaft, 7 protection frame, 71 1st connection end, 711 1st fixed connection point, 72 2nd connection End, 721 Second fixed connection point

Claims (12)

A hub, an eccentric gear, and a wheel casing are included, and a ring gear is installed on the inner wall of the hub along the circumferential direction, and the ring gear and the eccentric gear are engaged so as to mesh with each other, and the wheel casing is The eccentric position limiting groove is rotatably mounted on a hub, and an eccentric position limiting groove is provided on an edge of the wheel casing. The eccentric gear is arranged in the eccentric position limiting groove. A position limiting slide groove used to move with and to rotate the wheel casing and to be connected on the wheel casing so as to slidably engage with a position limiting block on the chassis. Is further installed, the position limiting block slides along the position limiting sliding groove, and further limits the rotation width of the wheel casing. The wheel casing includes a first wheel casing and a second wheel casing, and the eccentricity position limiting groove of the first wheel casing and the eccentricity position limiting groove of the second wheel casing are butted against each other. The wheel eccentric structure according to claim 1, wherein a eccentric gear is formed in the eccentric position limiting space, the eccentric gear forming a position limiting space. The wheel eccentric structure according to claim 1, wherein the position limiting sliding groove has an arc shape, and both ends of the position limiting sliding groove are fixedly connected to an inner wall of the wheel casing. The wheel eccentric structure according to claim 3, wherein the concave side of the arc shape faces the eccentric gear. The wheel eccentric structure according to claim 3, wherein a first position limiting point is installed at one end of the position limiting sliding groove, and a second position limiting point is installed at the other end. The wheel eccentric structure of claim 1, wherein the wheel eccentric structure further comprises a tire, the tire fixedly mounted on the hub. The traveling toy on which the wheel eccentric structure according to any one of claims 1 to 6 is mounted further includes a chassis, a drive mechanism, and a transmission member, and the drive mechanism is fixedly mounted on the chassis, A traveling toy that is driven to rotate the eccentric gear through the transmission member. The protective frame may further include a first connecting end and a second connecting end, the first connecting end fixedly connected to one end of the chassis to form a first fixed connecting point. The traveling toy according to claim 7, wherein the second connection end is fixedly connected to the other end of the chassis to form a second fixed connection point. The traveling toy according to claim 8, wherein the protection frame has an arc shape. The first connecting end contacts an outer edge of the vehicle body proximate to the first connecting end, and/or the second connecting end contacts an outer edge of the vehicle body proximate to the second connecting end. The traveling toy according to claim 9. A first hub provided with front wheels capable of advancing on a road surface by rotating in a first direction;
A ring gear formed on the inner circumference of the first hub;
An eccentric gear that meshes with the ring gear and is movable along the inner circumference of the first hub;
A drive mechanism for rotationally driving the eccentric gear,
A chassis supporting the drive mechanism,
A traveling toy comprising:
At the start of driving, the drive mechanism rotates the eccentric gear, whereby the eccentric gear moves along the inner circumference of the first hub to change the distance between the road surface and the eccentric gear, and the road surface. A traveling toy configured to perform a first stage in which the chassis tilts with respect to the road surface in accordance with a difference in distance between the eccentric gear and the eccentric gear. Further comprising a limiting mechanism for limiting a moving range of the eccentric gear with respect to an inner circumference of the first hub,
After performing the first step,
A second stage in which the movement of the eccentric gear along the inner circumference of the first hub is stopped by the limiting mechanism, and the ring gear meshing with the eccentric gear rotates forward in the first direction;
The traveling toy according to claim 11, which is configured to execute.