Toy capable of generating suction force

Abstract

The toy capable of generating suction force comprises a chassis, a fan, a first limb element used for pivoting between a first rotating position and a second rotating position, a first driving motor, a first main driving wheel, a first auxiliary wheel rotatably connected to the first driving motor and a first connecting rod element. And a first link element including a first end connected to the eccentric portion of the first auxiliary wheel such that when the first auxiliary wheel is driven in rotation by the first drive motor, the first end of the first link element moves through the first motion path, and a second end coupled to the first limb element such that the second end of the first link element moves through the second motion path when the first auxiliary wheel is driven in rotation by the second drive motor. The first link element is configured such that the first link element drives the first limb element to pivot between a first rotational position and a second rotational position when the first end moves through the first movement path.

Description

Technical Field

[0001] The present disclosure generally relates to toys that can travel and can generate suction so that the toy can travel along a wall and optionally along a ceiling, and more particularly to a toy car that can travel and can generate suction. Background Art

[0002] In electric toy cars, the size and cost of the motors available for these cars have been significantly reduced, while the power of the motors has increased or remained the same. Compared to earlier motors, the smaller motors are lighter in weight and consume less energy. Due to the reduced weight and power requirements, toys can now be designed and manufactured that were not possible decades ago. One such toy design is a wall-climbing suction toy that includes a fan driven by a small lightweight motor. The fan sucks air in from the bottom of the toy, creating a low-pressure area under the toy. The low-pressure area is sufficient to hold the weight of the toy on a flat surface, so the toy can travel vertically along a wall and even upside down along a ceiling.

[0003] The prior art includes U.S. Patent No. 5,014,803 to Urakami, titled "Device Capable of Adsorbing to and Moving Along a Wall Surface"; U.S. Patent Publication No. 2006 / 0144624 to Clark, titled "Wall Toy Race Car"; U.S. Patent No. 4,971,591 to Raviv, titled "Vacuum Towed Vehicle"; and U.S. Patent No. 5,194,032 to Garfinkel, titled "Moving Toy with Zero Gravity System", and U.S. Patent No. 8,371,898 to Sinisi, titled "Wall-Climbing Suction Toy with Articulated Body Portion".

[0004] One problem associated with suction toys is weight. The suction generated by the toy must be sufficient to counteract the weight of the toy. In this way, the toy will not fall from the ceiling or wall. However, the toy must include a fan, wheels, drive motor, control circuit, and battery. In addition, the toy must include a housing that is strong enough to protect these components from repeated drops from the ceiling or wall to the ground. Therefore, when designing suction toys, every effort is made to minimize the size and weight of the components. The result is small and fragile toys that do not include any auxiliary or extraneous elements that would increase the mass of the toy. Thus, prior art suction toys tend to have a very simple, lightweight body.

[0005] Another problem is related to weight balance. It has been observed that some suction toys in the prior art, especially toys having only a front drive wheel positioned on one side of the toy body and a rear drive wheel positioned on the other side of the toy body, exhibit different turning to the left and right. In other words, compared to driving the suction toy along a wall and turning left, driving the suction toy along a wall and turning right will result in a sharper or slower right turn.

[0006] Accordingly, an object of the present disclosure is to solve this and / or other drawbacks of the prior art devices. Summary of the Utility Model

[0007] According to one aspect, there is provided a suction generating toy including a chassis having a bottom surface on which at least one opening is formed; an electric fan element fluidly coupled to the at least one opening and configured to draw air into the at least one opening to form a low pressure area therearound; a first limb element pivotally attached to the chassis to pivot between a first rotational position and a second rotational position; a first drive assembly including: a first drive motor; a first main drive wheel rotatably connected to the first drive motor and positioned to engage a surface to drive the suction generating toy along the surface; a first auxiliary wheel rotatably connected to the first drive motor; and a first link element including a first end and a second end, the first end connected to an eccentric portion of the first auxiliary wheel such that when the first auxiliary wheel is driven to rotate by the first drive motor, the first end of the first link element moves along a first motion path; the second end coupled to the first limb element such that when the first end moves along the first motion path, the first link element drives the first limb element to pivot between the first rotational position and the second rotational position, wherein the first drive motor and the first main drive wheel are disposed on a first lateral side of the chassis relative to a longitudinal axis passing through the center of gravity of the suction generating toy, and wherein the first auxiliary wheel and the first link element are disposed on a second lateral side of the chassis opposite the first lateral side of the chassis so as to at least partially counteract the moment exerted by the weight of the first main drive wheel about the longitudinal axis of the chassis when the suction generating toy is in a selected orientation on the surface.

[0008] In a preferred embodiment, the first drive assembly is disposed on a first longitudinal half of the chassis defined by a lateral axis relative to the chassis passing through the center of gravity of the suction generating toy; and wherein the second drive assembly is disposed on a second longitudinal half of the chassis opposite the first longitudinal half and spaced apart relative to the lateral axis of the chassis so as to at least partially counteract the moment exerted by the weight of the first drive assembly about the lateral axis of the chassis when the suction generating toy is in a selected orientation on the surface.

[0009] In another preferred embodiment, the first limb element is pivotally connected to the first longitudinal half of the chassis; and wherein the second limb element is pivotally connected to the second longitudinal half of the chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Embodiments will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0011] Figure 1 An isometric view of an embodiment of a toy according to the present disclosure is shown, the toy being capable of traveling and generating suction such that the toy can travel along a wall and optionally along a ceiling (hereinafter referred to as a suction generating toy);

[0012] Figure 2 Shows Figure 1 An alternative perspective view of an embodiment of a suction generating toy;

[0013] Figure 3 Shows Figure 1 A reverse perspective view of an embodiment of a suction generating toy;

[0014] Figure 4 Shows Figure 1 A side sectional view of an embodiment of a suction generating toy, wherein the suction generating toy is attached to a surface (S);

[0015] Figure 5A Shows Figure 1 A bottom view of an embodiment of a suction generating toy, wherein the first limb element and the second limb element are in a first rotational position and a third rotational position, respectively;

[0016] Figure 5B Shows Figure 1 A bottom view of an embodiment of a suction generating toy, wherein the first limb element and the second limb element are in a second rotational position and a fourth rotational position, respectively;

[0017] Figure 5C Shows Figure 1 A bottom view of an embodiment of a suction generating toy, wherein the transverse axis and the longitudinal axis of the chassis of the suction generating toy are marked;

[0018] Figure 5D Shows Figure 1 A top view of the embodiment of the suction generating toy shown;

[0019] Figure 6 Shows Figure 5A A close-up of the bottom view of the suction generating toy shown;

[0020] Figure 7 Shows Figure 1Perspective view of the bottom of a suction - generating toy, where the bottom plate has been removed from the chassis of the suction - generating toy;

[0021] Figure 8 Shows Figure 5A Close - up of the bottom view of a suction - generating toy, where the bottom plate of the suction - generating toy has been removed from the chassis;

[0022] Figure 9 Shows Figure 1 Perspective view of the first drive assembly of an embodiment of the suction - generating toy shown;

[0023] Figure 10 Shows Figure 1 Perspective view of the tail element and the second pivot assembly of an embodiment of the suction - generating toy shown; and

[0024] Figure 11 Shows Figure 1 Perspective view of the head element and the first pivot assembly of an embodiment of the suction - generating toy shown. Detailed Description

[0025] For the sake of brevity of description, where appropriate, reference numerals in the various figures may be repeated to denote corresponding or similar elements. Additionally, numerous specific details are set forth to provide a thorough understanding of one or more embodiments described herein. However, one of ordinary skill in the art will understand that the embodiments described herein may be practiced without these specific details. In other instances, well - known methods, procedures, and components have not been described in detail so as not to obscure the embodiments described herein. First, it should be understood that although exemplary embodiments are shown in the figures and described below, any number of currently known or unknown technologies may be used to implement the principles of the present disclosure. The present disclosure should in no way be limited to the exemplary embodiments and technologies shown in the figures and described below.

[0026] Unless the context otherwise indicates, the various terms used throughout this specification may be read and understood as follows: The "or" used throughout is inclusive, as if written "and / or"; the singular articles and pronouns used throughout include their plural forms, and vice versa; similarly, gender pronouns include their corresponding pronouns, so pronouns should not be understood as limiting anything described herein to use, implementation, execution, etc. by a single gender; "exemplary" should be understood as "illustrative" or "exemplifying", and not necessarily "preferred" relative to other embodiments. Further definitions of terms may be set forth herein; as will be understood by reading this specification, these definitions may apply to prior and subsequent instances of these terms. It should also be noted that the use of the term "a" or "an" in all cases will be understood to mean "at least one", unless explicitly stated otherwise, or unless it will be understood that it clearly must mean "one".

[0027] As used herein, the terms "comprises" and "comprising" will be understood to be inclusive and open-ended, and not exclusive. Specifically, when used in the specification and claims, the terms "comprises" and "comprising" and their variants mean including the specified features, steps, or components. These terms should not be understood as excluding the presence of other features, steps, or components.

[0028] As used herein, the terms "about" and "approximately" are intended to cover variations that may exist in the upper and lower limits of a numerical range, such as variations in properties, parameters, and dimensions.

[0029] Modifications, additions, or omissions may be made to the systems, devices, and methods described herein without departing from the scope of the disclosure. For example, the components of the systems and devices may be integrated or separated. Additionally, the operations of the systems and devices disclosed herein may be performed by more, fewer, or other components, and the methods described may include more, fewer, or other steps. Further, the steps may be performed in any suitable order. As used herein, "each" refers to each member of a set or each member of a subset of a set.

[0030] The embodiments described herein are exemplary (e.g., in terms of materials, shape, size, and structural details) and are not limited by the appended claims and any modifications thereof. Those skilled in the art will understand that there are more possible alternative embodiments and modifications, and the following examples are merely illustrative of one or more embodiments. Accordingly, the scope of the disclosure is defined only by the appended claims and any modifications thereof.

[0031] Reference Figures 1 to 11, there is provided a suction - generating toy 10 according to an embodiment of the present disclosure. For greater clarity, the term "suction - generating toy" is intended to refer to a toy that can travel and can generate suction so that it can travel along a wall and optionally along a ceiling. The suction - generating toy 10 can be referred to as a suction - generating toy even when not in operation, merely because it has the ability to generate suction when in operation. In other words, at any given time, regardless of whether the suction - generating toy 10 is then being operated to generate suction or is not being operated to generate suction, it will still be considered a suction - generating toy.

[0032] In this embodiment, the suction - generating toy 10 includes a chassis 20 and an electric fan element 26. The chassis 20 has a bottom surface on which at least one opening 28 is formed. The electric fan element 26 is fluidly connected to the at least one opening 28 and is configured to draw air into the at least one opening 28 to form a low - pressure zone therearound. The suction - generating toy 10 further includes a first limb element 30 and a first drive assembly. The first limb element 30 is pivotally attached to the chassis to pivot between a first rotational position and a second rotational position (see respectively Figure 5A and 5B ). The first drive assembly includes a first drive motor 68, a first main drive wheel 60, and a first auxiliary wheel 62. The first main drive wheel 60 is rotatably connected to the first drive motor 68 and is positioned to engage a surface (S) to drive the suction - generating toy 10 along the surface (S). The first auxiliary wheel 62 is rotatably connected to the first drive motor 68. Thus, it can be said that the first drive motor 68 is operably connected to the first main drive wheel 60 and the first auxiliary wheel 62. In an embodiment where the output rotational speed of the first drive motor 68 is reduced to the output rotational speed required by the first main drive wheel 60 and the first auxiliary wheel 62, the first drive motor 68 can be operably connected to the first main drive wheel 60 and the first auxiliary wheel 62 via an optionally provided first gear device 71. Alternatively, any other suitable speed - reducing device can be used instead of the first gear device 71 to reduce the rotational speed of the first drive motor 68 to the output rotational speed required by the first main drive wheel 60 and the first auxiliary wheel 62.

[0033] The first drive assembly further includes a first link element 64. The first link element 64 has a first end 64a and a second end 64b. The first end 64a is connected to an eccentric portion of the first auxiliary wheel 62 such that when the first auxiliary wheel 62 is driven to rotate by the first drive motor 68, the first end 64a of the first link element 64 moves along a first motion path. The second end 64b is coupled to the first limb element 30 such that when the first end 64a moves along the first motion path, the first link element 64 drives the first limb element 30 to pivot between the first rotational position and the second rotational position. Specifically, as shown in Figure 5CAs shown, the first drive motor 68 and the first main drive wheel 60 are disposed on the first lateral side (I) of the chassis 20 relative to the longitudinal axis (L1) passing through the center of gravity (COG) of the suction - generating toy 10, and the first auxiliary wheel 62 and the first link element 64 are disposed on the second lateral side (II) of the chassis 20 opposite to the first lateral side (I) of the chassis 20 so as to at least partially counteract the moment exerted by the weight of the first main drive wheel 60 about the longitudinal axis (L1) of the chassis 20 when the suction - generating toy 10 is in a selected orientation on the surface (S).

[0034] In an additional embodiment such as Figures 2 to 8 shown, the first main drive wheel 60 is disposed on the first side of the first drive motor 68, while the first auxiliary wheel 62 is disposed on the second side of the first drive motor 68 opposite to the first side of the first drive motor 68.

[0035] In an embodiment such as Figures 1 to 11 shown, the first main drive wheel 60 has a textured drive surface 60a to provide a more secure engagement between the surface (S) and the first main drive wheel 60 when driving the suction - generating toy 10 along the surface (S).

[0036] As described above, the suction - generating toy 10 includes a chassis 20, and the chassis 20 is configured to support various other elements of the suction - generating toy 10 as disclosed herein. In some embodiments, the chassis 20 serves as a support and a base frame for the suction - generating toy 10, and the chassis 20 includes a main chassis frame. The chassis 20 further includes a bottom surface, and at least one opening 28 is positioned on the bottom surface.

[0037] In Figure 2 、 3 、5A, 5B, 6, 10, and 11 shown in the specific embodiments, the chassis 20 includes a bottom plate 82 mounted on the main frame of the chassis 20. The bottom plate 82 is generally rectangular, and the bottom surface of the chassis 20 is defined on the lowermost surface of the bottom plate 82. At least one opening 28 is positioned at the center of the lowermost surface of the bottom plate 82 and extends upward through the bottom plate 82.

[0038] In an embodiment such as Figure 7 、 8 and 9 shown, the structure of the chassis 20 of the suction - generating toy 10 is shown, where the bottom plate 82 is removed, thus exposing the interior of the chassis 20. In this specific embodiment, the interior of the chassis 20 includes a front chassis portion, a rear chassis portion, and a plurality of mounting arms 29 extending from the front chassis portion and the rear chassis portion for supporting the electric fan element 26 on the chassis 20.

[0039] In an additional embodiment, the chassis 20 includes a flexible skirt 84 element that is attached to the bottom surface of the chassis 20 and extends at least partially around the periphery of the bottom surface. The flexible skirt 84 defines a periphery around the low-pressure region created by the electric fan element 26.

[0040] In Figures 2 to 8 the specific embodiment provided, the flexible skirt 84 is mounted on the bottom plate 82 and extends downward from the bottom plate 82. The flexible skirt 84 extends around the rectangular peripheral edge of the bottom plate 82. The flexible skirt 84 is formed as a discontinuous skirt 84, where at specific points along the length of the flexible skirt 84, notches are formed in the flexible skirt 84 such that air can flow through the flexible skirt 84 from one or more directions and into the low-pressure region. The position and size of the notches in the flexible skirt 84 can be selected to control the flow rate of air that can flow through the flexible skirt 84.

[0041] In an additional embodiment, the chassis 20 defines a fluid conduit therein, where the fluid conduit is in fluid communication with at least one opening 28 formed through the bottom plate 82 of the chassis 20. The electric fan element 26 includes a fan 26a mounted within the fluid conduit in the chassis 20 and a fan motor 26b with an output shaft (not shown), and the fan 26 is mounted on the output shaft. The fan 26a of the electric fan element 26 is configured to be driven by the fan motor 26b of the electric fan element 26 to suction air upward from the region defined below the bottom plate 82. Thus, it can be understood that when the electric fan element 26 is activated, the fan 26a of the electric fan element 26 will suck air upward into the fluid conduit and create a low-pressure region below the toy 10 that generates suction. The pressure difference between the low-pressure region and the surrounding region of the low-pressure region is determined by the thrust of the electric fan element 26 and the air permeability of the skirt 84 (when the bottom edge of the skirt 84 contacts the surface (S) and the surface (S) is a suitable flat surface). When this pressure difference is large enough to generate a suction force whose magnitude is sufficient to overcome the gravity acting on the toy 10 that generates suction when the toy 10 that generates suction is on a vertical or inverted surface (S) (such as a wall or ceiling), then the toy 10 that generates suction can attach itself to the surface (S) on its own. In other words, in some embodiments, the electric fan element 26 is operable to generate a suction force to hold the toy 10 that generates suction on a vertical surface (S) (such as a wall). In some other embodiments, the electric fan element 26 is operable to generate a suction force to hold the toy 10 that generates suction on an inverted surface (S) (such as a ceiling).

[0042] In one embodiment, the toy 10 that generates suction includes a toy housing 22 that is attached to the chassis 20 and is configured to provide a recognizable outer shape or image for the overall form of the chassis 20 and the toy 10 that generates suction.

[0043] In Figures 1 to 11 In the specific embodiment provided, the structure of the suction - generating toy 10 resembles that of a gecko and has a gecko - like appearance. In this embodiment, the structure of the toy housing 22 resembles the torso of a gecko.

[0044] In one example Figures 1 to 11 In the embodiment shown, the suction - generating toy 10 further includes a second limb element 40 pivotally attached to the chassis for pivoting between a third rotational position and a fourth rotational position (see respectively Figure 5A and Figure 5B ). The second limb element 40 may be provided as part of the suction - generating toy 10 to depict, for example, one or more hind limbs of the animal (i.e., gecko) that the suction - generating toy 10 mimics.

[0045] In another example Figure 5C In the embodiment shown, the structure of the suction - generating toy 10 is such that a first longitudinal side (III) of the chassis 20 of the suction - generating toy 10 is defined relative to a transverse axis (L2) of the chassis 20 that passes through the center of gravity of the suction - generating toy 10. In the same manner, a second longitudinal side (IV) of the chassis 20 defined relative to the transverse axis (L2) of the chassis 20 is positioned opposite the first longitudinal side (III).

[0046] In another additional embodiment, for example Figures 1 to 7 In the embodiment shown, the first limb element 30 is pivotally connected to the first longitudinal side (III) of the chassis 20, and the second limb element 40 is pivotally connected to the second longitudinal side (IV) of the chassis 20. In Figures 1 to 7 In the specific embodiment shown, the first limb element 30 is pivotally connected near the foremost end of the chassis 20 of the suction - generating toy 10, and the second limb element 40 is pivotally connected near the rearmost end of the chassis 20.

[0047] In yet another additional embodiment, the suction - generating toy 10 is configured to synergistically drive the movement of each of the first limb element 30 and the second limb element 40 such that when the first limb element 30 is in a first rotational position, the second limb element 40 is in a third rotational position, and when the first limb element 30 is in a second rotational position, the second limb element 40 is in a fourth rotational position. For example, each of the first drive motor 68 of the first drive assembly and the second drive motor 78 of the second drive assembly that drives the movement of the second limb element 40 can be controlled by the same controller element of the suction - generating toy 10.

[0048] It can be said that the second drive motor 78 is operably connected to the second main drive wheel 70 and the second auxiliary wheel 72. In an embodiment where the output speed of the second drive motor 78 needs to be reduced to the output speed required by the second main drive wheel 70 and the second auxiliary wheel 72, the second drive motor 78 can be operably connected to the second main drive wheel 70 and the second auxiliary wheel 72 via an optionally provided second gear device 73. Alternatively, any other suitable reduction device can be used instead of the second gear device 73 to reduce the speed of the second drive motor 78 to the output speed required by the second main drive wheel 70 and the second auxiliary wheel 72.

[0049] In Figure 5A and Figure 5B In the specific embodiment shown, the first rotational position of the first limb element 30 is defined at a position where the angle (A1) between the axis (L3) of the first limb element 30 passing through the center point of the first limb element 30 and the axis (L2) parallel to the transverse axis of the suction generating toy 10 is approximately equal to zero. The second rotational position of the first limb element 30 is defined at a position where the angle (A1) between the axis of the first limb element 30 passing through the center point of the first limb element 30 and the transverse axis (L2) of the suction generating toy 10 is greater than zero and in the clockwise direction. Similarly, the third rotational position of the second limb element 40 is defined at a position where the angle (A2) between the axis (L4) of the second limb element 40 passing through the center point of the second limb element 40 and another axis parallel to the transverse axis (L2) of the suction generating toy 10 is approximately equal to zero. The fourth rotational position of the second limb element 40 is defined at a position where the angle (A2) between the axis of the second limb element 40 passing through the center point of the second limb element 40 and another axis parallel to the transverse axis (L2) of the suction generating toy 10 is greater than zero and in the counterclockwise direction.

[0050] In Figures 1 to 10 In the specific embodiment provided, each of the first limb element 30 and the second limb element 40 is formed to have a pair of opposing end members, where each opposing end member of the pair of opposing end members is shaped as a leg and a foot, such that each of the first limb element 30 and the second limb element 40 defines a pair of legs of the gecko-shaped toy 10. In this way, the first limb element 30 defines a pair of front legs of the gecko-shaped toy, and the second limb element 40 defines a pair of hind legs of the gecko-shaped toy.

[0051] In an additional embodiment, each of the first limb element 30 and the second limb element 40 is formed as a continuous structure, and each of the first limb element 30 and the second limb element 40 includes a pivot structure for pivotally connecting each of the respective first limb element 30 and the second limb element 40 to the chassis 20 of the suction generating toy 10.

[0052] In Figures 8 to 11 the specific embodiment shown, the pivot structure of the first limb element 30 includes a first pivot structure 33, wherein the first pivot structure 33 has a generally cylindrical structure and is formed to be pivotally connected to the chassis 20. Opposite end members of the first limb element 30 are connected to opposite sides of the first pivot structure 33 and extend outward therefrom. Similarly, the pivot structure of the second limb element 40 includes a second pivot structure 43, wherein the second pivot structure 43 also has a generally cylindrical structure and is formed to be pivotally connected to the chassis 20. Opposite end members of the second limb element 40 are connected to opposite sides of the second pivot structure 43 and extend outward therefrom. Each of the first limb element 30 and the second limb element 40 is formed as a hollow limb element such that the first limb element 30 has a hollow bottom 30a and the second limb element 40 has a hollow bottom 40a. By providing a hollow bottom 30a, 40a for each of the first limb element 30 and the second limb element 40, the total weight of the suction generating toy 10 is reduced, thereby reducing the suction force required by the electric fan element 26 to adsorb the suction generating toy 10 onto the surface (S).

[0053] In an example Figures 5A to 6 、 Figure 10 and Figure 11 shown, the chassis 20 includes a first pivot flange 24a that extends outward from the chassis 20 and is configured to pivotally support each of the head element 94 and the first limb element 30, thereby forming part of a first pivot assembly 34 therewith. Similarly, in an example Figures 5A to 6 、 Figure 10 and Figure 11 shown, the chassis 20 further includes a second pivot flange 24b that extends outward from the chassis 20 and is configured to pivotally support each of the tail element 96 and the second limb element 40, thereby forming part of a second pivot assembly 44 therewith.

[0054] In Figure 10 and Figure 11In the specific embodiments provided, the first pivot flange 24a extends outwardly near the foremost end of the chassis 20, and the second pivot flange 24b extends outwardly near the rearmost end of the chassis 20. In the first pivot assembly 34, the head pivot flange 94b is pivotally connected to the top of the first pivot flange 24a, and the first pivot structure 33 of the first limb element 30 is pivotally connected to the bottom of the first pivot flange 24a. Similarly, the tail pivot flange 96b is pivotally connected to the top of the second pivot flange 24b, and the second pivot structure 43 of the second limb element 40 is pivotally connected to the bottom of the second pivot flange 24b.

[0055] In one example Figures 4 to 11 In the illustrated embodiment, the suction generating toy 10 is constructed with a second wheel element on which the suction generating toy 10 is supported. The second wheel element can either function as an idler wheel that is simply driven to rotate when the suction generating toy 10 is driven by the first main drive wheel 60, or as a second main drive wheel 70. In the embodiment where the second wheel element of the suction generating toy 10 functions as the second main drive wheel 70, the second main drive wheel 70 is positioned on the chassis for engaging a surface (S) so as to drive the suction generating toy 10 along the surface (S).

[0056] In one example Figures 1 to 11 In the illustrated embodiment, the second main drive wheel 70 also has a textured drive surface 70a to provide a more secure engagement between the surface (S) and the second main drive wheel 70 when driving the suction generating toy 10 along the surface (S).

[0057] In one embodiment, the steering control of the suction generating toy 10 disclosed herein is mainly driven by "skid steering". Since the first main drive wheel 60 and the second main drive wheel 70 (when present) are fixed to the first shaft 69 and the second shaft 79, the suction generating toy 10 cannot be steered by turning the first main drive wheel 60 and the second main drive wheel 70 in different directions. Instead, the suction generating toy 10 is steered by rotating and / or varying the speed of at least one of the first main drive wheel 60 and the second main drive wheel 70 on the first side or the second side of the suction generating toy 10. To drive the suction generating toy 10 to rotate and / or pivot, the control of the first main drive wheel 60 and / or the second main drive wheel 70 is controlled to rotate in opposite directions so that the suction generating toy 10 rotates in a first rotational direction or a second rotational direction, causing the first main drive wheel 60 and the second main drive wheel 70 to drag (or skid) on the surface (S) such that the suction generating toy 10 steers.

[0058] It should be noted that in some prior art devices, such as those shown in U.S. Patent No. 8,371,898, there is a first drive motor facing the front of the vehicle and a second drive motor facing the rear of the vehicle, where the first drive motor and the second drive motor are completely located on opposite sides of the longitudinal axis of the vehicle. In addition, any link connecting each motor to the limb of the simulated character is on the same side of the longitudinal axis as the drive motor. Therefore, there is a relatively large unbalanced weight at the front of the vehicle on one side of the longitudinal axis of the vehicle, and a similarly large unbalanced weight at the rear of the vehicle on the other side of the longitudinal axis of the vehicle. Due to these asymmetrically positioned weights, when driving the vehicle along a wall, turning the vehicle to the left may produce a different response than turning the vehicle to the right, making it difficult to precisely control the vehicle. The so-called unbalanced weight at the front of the vehicle on one side of the longitudinal axis means the weight at the front of the vehicle on one side of the longitudinal axis of the vehicle, and there is no equivalent weight at the front of the vehicle on the other side of the longitudinal axis. Generally, the unbalanced weight at a certain point along the length of the vehicle on one side of the longitudinal axis means the weight at that point along the length of the vehicle on one side of the longitudinal axis of the vehicle, and there is no equivalent weight at that point along the length of the vehicle on the other side of the longitudinal axis.

[0059] In contrast, in the suction generating toy 10 of the present disclosure, there is at least one feature that reduces the amount of unbalanced weight on one side (e.g., the second side (II)) of the longitudinal axis L1 at the front of the suction generating toy 10, and reduces the amount of unbalanced weight on the other side (e.g., the first side (I)) of the longitudinal axis L1 at the rear of the suction generating toy 10.

[0060] The at least one feature includes at least one of the following: the position of the first drive motor 68, and the position of the second drive motor 78 in an embodiment where the second drive motor 78 is provided; and the position of the first auxiliary wheel 62 and the first link element 64, and the position of the second auxiliary wheel 72 and the second link element 74 in an embodiment where the second auxiliary wheel 72 and the second link element 74 are provided.

[0061] Regarding the position of the first drive motor 68, it should be noted that the first part 68a of the first drive motor 68 is positioned on the first side (I) of the longitudinal axis L1, while the second part 68b of the first drive motor 68 is positioned on the second side (II) of the longitudinal axis L1. Regarding the position of the second drive motor 78, it should be noted that the first part 78a of the second drive motor 78 is positioned on the first side (I) of the longitudinal axis L1, while the second part 78b of the second drive motor 78 is positioned on the second side (II) of the longitudinal axis L1. It should be noted that in some embodiments where the first drive motor 68 and the second drive motor 78 are both provided, it may be possible to position only the first drive motor 68 such that the first part 68a is positioned on the first side (I) of the longitudinal axis L1 and the second part 68b is positioned on the second side (II) of the longitudinal axis L1.

[0062] Regarding the position of the first auxiliary wheel 62 and the first link element 64, it should be noted that the first auxiliary wheel 62 and the first link element 64 are positioned on the side of the longitudinal axis L1 opposite to the first drive wheel 60. It should also be noted that the first drive wheel 60 is positioned at the first drive wheel longitudinal position along the length of the suction generating toy 10, and the first auxiliary wheel 62 is positioned at the first auxiliary wheel longitudinal position (the same as the first drive wheel longitudinal position) along the length of the suction generating toy 10. It should also be noted that the first link element 64 is positioned transversely farther from the longitudinal axis L1 than the first gear device 71. Thus, although the weight of the first link element 64 is less than that of the first gear device 71, the first link element 64 also has an improved ability to counteract the weight of the first gear device 71.

[0063] Similarly, it should be noted that the second auxiliary wheel 72 and the second link element 74 are positioned on the side of the longitudinal axis L1 opposite to the second main drive wheel 70. It should also be noted that the second main drive wheel 70 is positioned at the second main drive wheel longitudinal position along the length of the suction generating toy 10, and the second auxiliary wheel 72 is positioned at the second auxiliary wheel longitudinal position (the same as the second drive wheel longitudinal position) along the length of the suction generating toy 10. It should also be noted that the second link element 74 is positioned transversely farther from the longitudinal axis L1 than the second gear device 73. Thus, although the weight of the second link element 74 is less than that of the second gear device 73, the second link element 74 has an improved ability to counteract the weight of the second gear device 73 when the suction generating toy 10 is turned left or right, especially when the suction generating toy 10 is directly oriented upwards or downwards on a wall.

[0064] It should be noted that by providing at least one of the above features, the suction - generating toy 10 is more likely to exhibit a responsiveness similar to that during a right - turn when turning left, especially when starting to turn from an initial orientation of the suction - generating toy 10 that is directly up or directly down against a wall.

[0065] In an additional embodiment such as Figure 2 、 3 、5A - 5D and Figures 6 to 11 as shown, the suction - generating toy 10 includes a pair of pivot bodies 83 that extend downwardly beyond the bottom surface of the chassis 22 defined on the bottom - most surface of the base plate 82. In this way, the lowest point of each of the pair of pivot bodies 83 is positioned below the bottom surface of the chassis 20. By positioning the pivot bodies 83 in this manner, each of the pair of pivot bodies 83 serves as a pivot point for supporting the suction - generating toy 10 on a surface (S), such that when at least one of the first main drive wheel 60 and the second main drive wheel 70 drives the suction - generating toy 10 to rotate / pivot in a first rotational direction or a second rotational direction, the toy 10 can pivot and "slide" more stably. As described above, the steering control of the suction - generating toy 10 is mainly "skid - steering" control. By providing a pair of pivot bodies 83 that extend below the bottom surface of the chassis 20, when the suction - generating toy 10 slides and rotates in a first rotational direction or a second rotational direction, the suction - generating toy 10 will be partially supported on the pair of pivot bodies 83.

[0066] In Figure 2 、 3 、5A - 5D and Figures 6 to 11 as shown in the specific embodiment, the pair of pivot bodies 83 are mounted to the chassis 20 and extend downwardly through openings in the mounting plate 82 such that the lowermost portions of the pair of pivot bodies 83 are disposed below the lowermost surface of the mounting plate 82. The lowermost portions of the pair of pivot bodies 83 are formed to be generally convex so that the pair of pivot bodies 83 pivot more smoothly on the surface (S). The pair of pivot bodies 83 are disposed at diagonally - opposite positions on the mounting plate 82 such that the pair of pivot bodies 83 are equidistantly spaced apart relative to the longitudinal axis (L1) of the chassis and the transverse axis (L2) of the chassis.

[0067] In an embodiment such as Figure 5C as shown, the first main drive wheel 60 is disposed on a first transverse side (I) of the chassis 20, and the second main drive wheel 70 is disposed on a second transverse side (II) of the chassis 20 that is opposite to the first transverse side (I). Additionally, the suction - generating toy 10 is configured such that the second main drive wheel 70 is longitudinally spaced from the first main drive wheel 60 along the length of the suction - generating toy 10.

[0068] In an additional embodiment, the suction generating toy 10 is configured such that the first main drive wheel 60 is positioned in front of the center of gravity of the suction generating toy 10, the first auxiliary wheel 62 is positioned in front of the center of gravity of the suction generating toy 10, and the second main drive wheel 70 is positioned behind the center of gravity of the suction generating toy 10 so as to at least partially counteract the moment exerted about the transverse axis (L2) of the chassis 20 by the weight of the first main drive wheel 60 and the auxiliary drive wheels when the suction generating toy 10 is in a selected orientation on the surface (S).

[0069] In, for example Figures 4 to 11 the embodiment shown, the suction generating toy 10 is further configured to drive the movement of the second limb element 40 via the second main drive wheel 70. In this embodiment, the suction generating toy 10 further includes a second drive assembly, wherein the second drive assembly includes the second main drive wheel 70, a second drive motor 78 connected to the chassis 20, a second auxiliary wheel 72 rotatably connected to the second drive motor 78, and a second link element 74 connected between the second auxiliary wheel 72 and the second limb element 40. The second main drive wheel 70 is rotatably connected to the second drive motor 78, and the second auxiliary wheel 72 is rotatably connected to the second main drive wheel 70 and the second drive motor 78.

[0070] In an additional embodiment, the second auxiliary wheel 72 is positioned behind the center of gravity (COG) of the suction generating toy 10.

[0071] In, for example Figures 5A to 8 the embodiment shown, the first drive assembly is disposed on a first longitudinal side (III) of the chassis 20, the first longitudinal side (III) being defined relative to the transverse axis (L2) of the chassis 20 (which passes through the center of gravity (COG) of the suction generating toy 10), and the second drive assembly is disposed on a second longitudinal side (IV) of the chassis 20 opposite the first side and spaced relative to the transverse axis (L2) of the chassis 20 so as to at least partially counteract the moment exerted about the transverse axis (L2) of the chassis 20 by the weight of the first drive assembly when the suction generating toy 10 is in a selected orientation on the surface (S).

[0072] In one embodiment, the second link element 74 of the second drive assembly includes a first end 74a and a second end 74b, the first end 74a being connected to an eccentric portion of the second auxiliary wheel 72 such that when the second main drive wheel is driven to rotate by the second drive motor 78, the first end 74a of the second link element 74 moves along a second movement path, and the second end 74b is coupled to the second limb element 40 such that when the first end 74a of the second link element 74 moves along the second movement path, the second limb element 40 pivots between a third rotational position and a fourth rotational position (see respectivelyFigure 5A and Figure 5B )。

[0073] In Figure 7 and Figure 8 In the specific embodiments provided, each of the first drive motor 68 and the second drive motor 78 is mounted on the chassis 20. The first drive motor 68 is positioned on the first longitudinal side (III) of the chassis 20, and the second drive motor 78 is positioned on the second longitudinal side (IV) of the chassis 20. The first gear device 71 includes a first output shaft 69 that extends transversely therefrom on both sides of the first gear device 71. The first main drive wheel 60 is mounted to the first output shaft 69 on one side of the first gear device 71, and the first auxiliary wheel 62 is driven (at least indirectly) by the first output shaft 69 on the other side of the first gear device 71. In the illustrated embodiment, the first shaft extension 91 is mounted to the first output shaft 69, and the first auxiliary wheel shaft 93 is mounted to the first shaft extension 91 so as to be driven by the first output shaft 69. Accordingly, both the first drive wheel 60 and the first auxiliary wheel 62 are driven by the first output shaft 69 and thus by the first drive motor 68.

[0074] As described above, the first main drive wheel 60 and the first auxiliary wheel 62 are respectively disposed on the opposite first lateral side (I) and second lateral side (II) of the suction generating toy 10. The second gear device 73 includes a second output shaft 79 that extends transversely therefrom on both sides of the second gear device 73. The second main drive wheel 70 is mounted to the second output shaft 79 on one side of the second gear device 73, and the second auxiliary wheel 72 is driven (at least indirectly) by the second output shaft 79 on the other side of the second gear device 73. In the illustrated embodiment, the second shaft extension 95 is mounted to the second output shaft 79, and the second auxiliary wheel shaft 97 is mounted to the second shaft extension 95 so as to be driven by the second output shaft 79. Accordingly, both the second main drive wheel 70 and the second auxiliary wheel 72 are driven by the second output shaft 79 and thus by the second drive motor 78.

[0075] In an embodiment where the suction generating toy 10 further includes a second drive assembly, each of the first main drive wheel 60 and the second main drive wheel 70 can be controlled and driven to drive the movement of the suction generating toy 10 and to turn the suction generating toy 10 along the surface (S). At least one or both of the first main drive wheel 60 and the second main drive wheel 70 can be driven by their respective first drive motor 68 and second drive motor 78 to cause the suction generating toy 10 to travel forward, backward or turn in either direction.

[0076] In an additional embodiment, the suction - generating toy 10 includes at least one decorative element that is connected to the chassis 20 and is configured to provide an additional, recognizable shape or appearance to the overall form of the suction - generating toy 10. For example, in the above - mentioned embodiment where the suction - generating toy 10 is configured to resemble a gecko, at least one decorative element can further enhance the "gecko - like" appearance of the suction - generating toy 10.

[0077] In another additional embodiment, at least one decorative element is movably connected to the chassis 20 of the suction - generating toy 10 and can move freely relative to the suction - generating toy 10 in a reciprocating motion. In this way, when the suction - generating toy is driven to move along a surface (S) via at least a first drive assembly, at least one decorative element will move relative to the chassis 20 in this reciprocating motion.

[0078] In, for example Figures 1 to 11 the embodiment shown, at least one decorative element includes a head element 94 pivotally connected to the chassis 20 and a tail element 96 pivotally connected to the chassis 20. The head element 94 is pivotally connected to the chassis 20 near the foremost end via a first pivot assembly 34, and the tail element 96 is pivotally connected to the chassis 20 near the rearmost end via a second pivot assembly 44. Each of the head element 94 and the tail element 96 is pivotally connected to the chassis 20 such that when the suction - generating toy 10 is driven to move along a surface (S) via at least a first drive assembly, each of the head element 94 and the tail element 96 will pivot back and forth relative to the chassis 20 of the suction - generating toy 10.

[0079] In Figures 1 to 5B and Figure 11 the specific embodiment shown, the head element 94 includes a head body having a planar pattern and a lower head surface that is substantially concave and defined on the bottom 94a of the head body. The head element 94 further includes a head pivot flange 94b that extends from the head body and is configured to be pivotally connected to the first pivot flange 24a (and the first pivot structure 33 of the first limb element 30).

[0080] In, for example Figures 1 to 3 、 Figure 5A 、 Figure 5B and Figure 11In the illustrated embodiment, the tail element 96 of the suction - generating toy 10 is a hinged tail element 96 that includes a plurality of hinge bodies 96a and is pivotally coupled near the rearmost end of the chassis 20. The hinge structure of the tail element 96 is such that when the suction - generating toy 10 is steered by at least the main drive wheels of the first drive assembly, each hinge body 96a of the hinged tail element 96 will move relative to each other in a serpentine manner, causing the hinged tail element 96 to swing from side to side.

[0081] In Figures 1 to 3 、 Figure 5A 、 Figure 5B and Figure 11 the specific embodiment shown, the hinged tail element 96 includes a plurality of hinge bodies 96a and a spline plate 97 that defines the overall length and shape of the tail. The hinged tail element 96 also includes a tail pivot flange 96b that extends from one end of the spline plate 97 and is pivotally connected as part of the second pivot assembly 44 to the chassis 20 and / or the second pivot structure 43 of the second limb element 40. Each of the plurality of hinge bodies 96a is movably connected to the spline plate 97 such that when the spline plate 97 pivots relative to the chassis 20, each of the hinge bodies 96a can move relative to the spline body 97 to produce an articulated serpentine motion of the tail.

[0082] In at least some embodiments, the hinge bodies 96a of the hinged tail element 96 are integrally formed with the spline plate 97 but are movable relative to the spline plate 97. In at least some other embodiments, the hinge bodies 96a of the hinged tail element 96 are distinct from the spline plate 97 and are movably connected along the spline plate 97.

[0083] In, for example Figure 6 、 7 8, and Figure 9 the embodiment shown, the first drive assembly of the suction - generating toy 10 is configured such that the first auxiliary wheel 62 includes a first eccentric pin 65. The first end 64a of the first link element 64 is pivotally connected to the first eccentric pin 65 such that the first eccentric pin 65 defines the eccentric portion of the first auxiliary wheel 62. The second end 64b of the first link element 64 is connected to a first pin connection point 67 on the bottom 30a of the first limb element 30. When the first drive motor 68 rotates to drive the first main drive wheel 60 to rotate with the first output shaft 69, the first auxiliary wheel 62 and the first eccentric pin 65 will also rotate, and the first end 64a of the first link element 64 will move along a predetermined range of motion. The movement of the first end 64a of the first link element 64 along the predetermined range of motion will move the second end 64b of the first link element 64 to drive the first limb element 30 between a first rotational position and a second rotational position.

[0084] In the same embodiment, the second drive assembly of the suction - generating toy 10 is configured such that the second auxiliary wheel 72 includes a second eccentric pin 75. A first end 74a of the second link element 74 is pivotally connected to the second eccentric pin 75 such that the second eccentric pin 75 defines an eccentric portion of the second auxiliary wheel 72. A second end 74b of the second link element 74 is connected to a second pin - connection point 77 on the bottom 40a of the second limb element 40. When the second drive motor 78 rotates to drive the second main drive wheel 70 to rotate along with the second output shaft 79, the second auxiliary wheel 72 and the second eccentric pin 75 will also rotate, and the first end 74a of the second link element 74 will move along a predetermined range of motion. The movement of the first end 74a of the second link element 74 along the predetermined range of motion will move the second end 74b of the second link element 74 to drive the second limb element 40 between a third rotational position and a fourth rotational position.

[0085] In Figure 6 , 7 , 8 and Figure 9 In the specific embodiment shown, the first pin - connection point 67 is formed as a first pin body 67a extending downward from the hollow bottom 30a of the first limb element 30. The second pin - connection point 77 is formed as a second pin body 77a extending downward from the hollow bottom 30a of the first limb element 30.

[0086] In some embodiments, the first drive assembly and the second drive assembly are controlled such that the first main drive wheel 60 and the second main drive wheel 70, and the first auxiliary wheel 62 and the second auxiliary wheel 72 rotate at substantially the same speed and at substantially the same time, such that the first main drive wheel 60 and the second main drive wheel 70 rotate synchronously to drive the movement of the suction - generating toy 10, and such that the first limb element 30 and the second limb element 40 move in concert to mimic lifelike movements.

[0087] In an additional embodiment, the suction - generating toy 10 includes at least one controller operatively connected to the first drive motor 68 and the second drive motor 78 (if present). The function of the at least one controller is to send control signals to the first drive motor 68 and the second drive motor 78 to control the movement of the suction - generating toy 10 along the surface (S).

[0088] In another additional embodiment, the at least one controller includes at least one transmitter / receiver element configured to connect to an external remote control unit. In this way, the first drive motor 68 and the second drive motor 78 can be remotely controlled by the external remote control unit via the at least one controller. In this way, the suction - generating toy 10 can become a remote - controlled toy.

[0089] The above specific embodiments have been shown by way of example, and it should be understood that these embodiments can have various modifications and alternative forms. It should also be understood that the above embodiments are intended to be examples of the present disclosure, and those skilled in the art can make changes and modifications to them without departing from the scope of the present disclosure defined only by the appended claims.

[0090] Reference numeral

[0091] 10 Suction-generating toy

[0092] 20 Chassis

[0093] 22 Housing

[0094] 24a First pivot flange

[0095] 24b Second pivot flange

[0096] 26 Electric fan element

[0097] 26A Fan

[0098] 26b Motor

[0099] 28 Opening

[0100] 29 Mounting arm

[0101] 30 First limb element

[0102] 30a Hollow bottom of the first limb element

[0103] 33 First pivot structure

[0104] 34 First pivot assembly

[0105] 40 Second limb element

[0106] 40a Hollow bottom of the second limb element

[0107] 43 Second pivot structure

[0108] 44 Second pivot assembly

[0109] 60 First main drive wheel

[0110] 60a Textured drive surface

[0111] 62 First auxiliary wheel

[0112] 64 First link element

[0113] 64a First end of the first link element

[0114] 64b Second end of the first link element

[0115] 64c First component fork arm

[0116] 65 First eccentric pin

[0117] 67 First pin connection point

[0118] 67a First pin body

[0119] 68 First drive motor

[0120] 69 First output shaft

[0121] 70 Second main drive wheel

[0122] 70a Textured drive surface

[0123] 71 First gear device

[0124] 72 Second auxiliary wheel

[0125] 73 Second gear device

[0126] 74 Second link element

[0127] 74a First end of the second link element

[0128] 74b Second end of the second link element

[0129] 74c Second component fork arm

[0130] 75 Second eccentric pin

[0131] 77 Second pin connection point

[0132] 77a Second pin body

[0133] 78 Second drive motor

[0134] 79 Second output shaft

[0135] 82 Base plate

[0136] 83 Pivoting body

[0137] 84 Skirt

[0138] 91 First shaft extension

[0139] 93 First auxiliary wheel shaft

[0140] 95 Second shaft extension

[0141] 97 Second auxiliary wheel shaft

[0142] 94 Head

[0143] Hollow bottom of the 94a head

[0144] 94b head pivot flange

[0145] 96 Tail element

[0146] 96a articulated body

[0147] 96b tail pivot flange

[0148] 97 Spline plate.

Claims

1. A toy that generates suction, comprising a chassis having a bottom surface with at least one opening formed on the bottom surface, a powered fan element fluidly coupled to the at least one opening and configured to draw air into the at least one opening to form a low pressure zone thereabout; a first limb member pivotably attached to the chassis to pivot between a first rotational position and a second rotational position; and A first drive assembly comprising: a first drive motor; a first main drive wheel rotatably connected to the first drive motor and positioned to engage a surface to drive the suction-generating toy along the surface; Characterized in that the first driving component also includes: a first auxiliary wheel rotatably connected to the first drive motor; and A first linkage member comprising: a first end portion connected to an eccentric portion of the first auxiliary wheel so that when the first auxiliary wheel is driven to rotate by the first drive motor, the first end portion of the first link member moves through a first motion path; and a second end portion coupled to the first limb member such that when the first end portion moves through the first path of motion, the first linkage member drives the first limb member to pivot between the first rotational position and a second rotational position; wherein the first drive motor and the first main drive wheel are arranged on a first lateral side of the chassis relative to a longitudinal axis of the chassis passing through the center of gravity of the toy generating suction; and The first auxiliary wheel and the first linkage element are disposed on a second lateral side of the chassis to at least partially offset the weight of the first main drive wheel about the longitudinal axis of the chassis when the suction generating toy is in a selected orientation on the surface.

2. The suction-generating toy according to claim 1, wherein: The first drive motor drives the first output shaft; and Wherein, the first main driving wheel and the first auxiliary wheel are respectively driven by the first output shaft.

3. The suction-generating toy according to claim 2, wherein: The first drive motor drives the first output shaft through a first gear arrangement, the first main drive wheel is arranged on a first side of the first gear arrangement, and the first auxiliary wheel is arranged on a second side of the first gear arrangement.

4. The suction-generating toy according to claim 1, wherein: The first auxiliary wheel comprises an eccentric pin; wherein the first end of the first linkage element is pivotably connected to the eccentric pin such that the eccentric pin defines an eccentric portion of the first auxiliary wheel.

5. The suction-generating toy according to claim 1, characterized in that: The toy generating suction force also includes: a second primary drive wheel positioned to engage the surface to drive the suction-generating toy along the surface; Wherein, the first main driving wheel is arranged on a first lateral side of the chassis; wherein the second main driving wheel is arranged on a second lateral side of the chassis opposite to the first lateral side; and Wherein, the second main driving wheel is longitudinally spaced apart from the first main driving wheel.

6. The suction-generating toy according to claim 5, wherein: The first main drive wheel is positioned forward of the center of gravity of the toy that generates suction; wherein the first auxiliary wheel is positioned in front of the center of gravity of the toy generating suction; and Wherein, the second main driving wheel is positioned behind the center of gravity of the toy that generates suction.

7. The suction-generating toy according to claim 5, characterized in that: The toy generating suction force also includes: A second limb member is pivotally attached to the chassis for pivoting between a third rotational position and a fourth rotational position.

8. The suction-generating toy according to claim 7, characterized in that: The suction-generating toy further comprises a second drive assembly, wherein the second drive assembly comprises the second main drive wheel, a second drive motor, a second auxiliary wheel rotatably connected to the second drive motor, and a second link element connected between the second auxiliary wheel and a second limb element; and Wherein, the second main driving wheel is rotatably connected to the second driving motor.

9. The suction-generating toy according to claim 8, wherein: The second auxiliary wheel is positioned behind the center of gravity of the suction-generating toy.

10. The suction-generating toy according to claim 8, wherein: The second link element comprises: a first end portion connected to an eccentric portion of the second auxiliary wheel so that when the second main drive wheel is driven to rotate by the second drive motor, the first end portion of the second link member moves through a second motion path; and The second end is connected to the second limb member so that the second limb member pivots between the third rotational position and a fourth rotational position when the first end of the second linkage member moves through the second motion path.

11. The suction-generating toy according to claim 8, wherein: The first drive assembly is disposed on a first longitudinal half of the chassis, the first longitudinal half being defined by a transverse axis relative to the chassis passing through the center of gravity of the suction-generating toy; and wherein the second drive assembly is disposed on a second longitudinal half of the chassis opposite the first longitudinal half and is spaced apart relative to the transverse axis of the chassis so as to at least partially offset the moment applied by the weight of the first drive assembly about the transverse axis of the chassis when the suction-generating toy is in a selected orientation on the surface.

12. The suction-generating toy according to claim 7, wherein: The first limb member is pivotally connected to a first longitudinal half of the chassis; and wherein the second limb member is pivotally connected to a second longitudinal half of the chassis.

13. The suction-generating toy according to claim 1, wherein: A first portion of the first drive motor is located on a first side of the longitudinal axis, and a second portion of the first drive motor is located on a second side of the longitudinal axis.

14. The suction-generating toy according to claim 1, characterized in that: The toy generating suction force also includes: a second primary drive wheel positioned to engage the surface to drive the suction-generating toy along the surface; Wherein, the first main driving wheel is arranged on a first lateral side of the chassis; wherein the second main driving wheel is arranged on a second lateral side of the chassis opposite to the first lateral side; and wherein the second main driving wheel is longitudinally spaced apart from the first main driving wheel, Wherein, the first main driving wheel is positioned in front of the center of gravity of the toy generating suction, wherein the first auxiliary wheel is positioned in front of the center of gravity of the toy generating suction, and wherein the second main driving wheel is positioned behind the center of gravity of the toy generating suction; Wherein, a first portion of the first drive motor is located on a first side of the longitudinal axis, and a second portion of the first drive motor is located on a second side of the longitudinal axis.

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