Toy producing suction force

Abstract

A toy that generates suction is provided, including a chassis, a fan, a first limb element for pivoting between a first rotational position and a second rotational position, a first drive motor, a first primary drive wheel, a first secondary wheel rotatably connected to the first drive motor, and a first linkage element including a first end connected to an eccentric portion of the first secondary wheel such that when the first secondary wheel is driven to rotate by the first drive motor, the first end of the first linkage element moves through a first motion path, and a second end coupled to the first limb element such that when the first end moves through the first motion path, the first linkage element drives the first limb element to pivot between the first rotational position and the second rotational position.

Description

[0001] This application is a divisional application of application number 202420861276.8, filed on April 24, 2024, entitled "Toy that generates suction". Technical Field

[0002] This disclosure generally relates to toys that can move and generate suction, enabling the toy to move along a wall and optionally along a ceiling, and more particularly to toy vehicles that can move and generate suction. Background Technology

[0003] In electric toy cars, the size and cost of the electric motors used have been significantly reduced, while the power of the motors has increased or remained the same. Smaller motors are lighter and consume less energy compared to earlier models. This reduction in weight and power requirements has made it possible to design and manufacture toys that were impossible decades ago. One such toy design is a suction-crawling toy, which includes a fan driven by a small, lightweight electric motor. The fan draws air in from the bottom of the toy, creating a low-pressure zone underneath. This low-pressure zone is sufficient to keep the toy's weight on a flat surface, allowing the toy to travel vertically along a wall or even upside down along a ceiling.

[0004] Prior art includes Urakami's U.S. Patent No. 5,014,803, entitled "Device Capable of Adhering to and Moving Along a Wall"; Clark's U.S. Patent No. 2006 / 0144624, entitled "Wall Toy Racer"; Raviv's U.S. Patent No. 4,971,591, entitled "Vacuum Traction Vehicle"; Garfinkel's U.S. Patent No. 5,194,032, entitled "Moving Toy with Zero Gravity System"; and Sinisi's U.S. Patent No. 8,371,898, entitled "Wall-Adhering Crawling Toy with Articulated Body Part".

[0005] One issue associated with suction toys is weight. The suction force generated by the toy must be sufficient to offset its weight, preventing it from falling off the ceiling or wall. However, the toy must include a fan, wheels, a drive motor, control circuitry, and batteries. Furthermore, the toy must have a sufficiently robust casing to protect these components from repeated drops from the ceiling or wall. Therefore, when designing suction toys, every effort is made to minimize the size and weight of the parts. The result is a small, fragile toy that contains no auxiliary or irrelevant components that would increase its weight. Consequently, existing suction toys tend to have a very simple, lightweight body.

[0006] Another issue relates to weight balance. It has been observed that some existing suction toys, particularly those with only one front drive wheel located on one side of the toy body and one rear drive wheel located on the other, exhibit different turning patterns when turning left and right. In other words, a suction toy driven along a wall and turning left will make a sharper or gentler right turn compared to turning left.

[0007] Therefore, the purpose of this disclosure is to address this and / or other disadvantages of existing devices. Utility Model Content

[0008] According to one aspect, a suction-generating toy is provided, comprising 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 create a low-pressure zone 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 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; a first auxiliary wheel rotatably connected to the first drive motor; and a first linkage element including a first end and a second end, the first end being connected to an eccentric portion of the first auxiliary wheel, such that when When the first auxiliary wheel is driven to rotate by the first drive motor, the first end of the first linkage element moves through the first motion path; the second end is connected to the first limb element such that when the first end moves through the first motion path, the first linkage element drives the first limb element to pivot between a first rotational position and a second rotational position, wherein the first drive motor and the first main drive wheel are arranged on the first lateral side of the chassis relative to the longitudinal axis of the center of gravity of the suction-generating toy, and wherein the first auxiliary wheel and the first linkage element are arranged on the second lateral side of the chassis opposite to the first lateral side of the chassis, so as to at least partially counteract the torque 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.

[0009] In a preferred embodiment, 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 to the first longitudinal half and spaced apart relative to the transverse axis of the chassis, so as to at least partially counteract the torque exerted 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.

[0010] In another preferred embodiment, the first limb element is pivotally connected to a first longitudinal half of the chassis; and wherein the second limb element is pivotally connected to a second longitudinal half of the chassis. Attached Figure Description

[0011] The implementation scheme will now be described by way of example only, with reference to the accompanying drawings, wherein:

[0012] Figure 1 An isometric view of one embodiment of a toy according to the present disclosure is shown, which is capable of traveling and generating suction, enabling it to travel along a wall and optionally along a ceiling (hereinafter referred to as a suction-generating toy).

[0013] Figure 2 It shows Figure 1 Alternative perspective view of an embodiment of a toy that generates suction;

[0014] Figure 3 It shows Figure 1 A reverse perspective view of a solution for a toy that generates suction.

[0015] Figure 4 It shows Figure 1 A side cross-sectional view of an embodiment of a toy that generates suction, wherein the toy that generates suction is attached to a surface (S).

[0016] Figure 5A It shows Figure 1 A bottom view of an embodiment of a toy that generates suction, wherein the first limb element and the second limb element are in a first rotational position and a third rotational position, respectively;

[0017] Figure 5B It shows Figure 1 A bottom view of an embodiment of a toy that generates suction, wherein the first limb element and the second limb element are in a second rotational position and a fourth rotational position, respectively;

[0018] Figure 5C It shows Figure 1 A bottom view of an embodiment of a toy that generates suction, wherein the transverse and longitudinal axes of the chassis of the toy that generates suction are marked;

[0019] Figure 5D It shows Figure 1 A top view of an embodiment of a toy that generates suction;

[0020] Figure 6 It shows Figure 5A A close-up view of the toy that generates suction, taken from below;

[0021] Figure 7 It shows Figure 1A 3D view of the bottom of a toy that generates suction, where the base plate has been removed from the chassis of the toy that generates suction;

[0022] Figure 8 It shows Figure 5A A close-up view of a toy that generates suction, showing that the base plate of the toy has been removed from the chassis;

[0023] Figure 9 It shows Figure 1 A perspective view of the first drive component of an embodiment of a toy that generates suction;

[0024] Figure 10 It shows Figure 1 A perspective view of the tail element and the second pivot assembly of an embodiment of a toy that generates suction; and

[0025] Figure 11 It shows Figure 1 A perspective view of the head element and the first pivot assembly of an embodiment of a toy that generates suction. Detailed Implementation

[0026] To simplify the description, reference numerals in the accompanying drawings may be repeated where deemed appropriate to indicate corresponding or similar elements. Furthermore, numerous specific details are set forth to provide a thorough understanding of one or more embodiments described herein. However, those skilled in the art will understand that the embodiments described herein can be practiced without these specific details. In other instances, well-known methods, processes, and components have not been described in detail so as not to obscure the embodiments described herein. It should be understood first and foremost that, although exemplary embodiments are shown in the accompanying drawings and described below, the principles of this disclosure can be implemented using any number of currently known or unknown techniques. This disclosure should in no way be limited to the exemplary embodiments and techniques shown in the accompanying drawings and described below.

[0027] Unless the context otherwise requires, the various terms used throughout this specification may be read and understood as follows: “or” as used throughout is inclusive, as if written as “and / or”; singular articles and pronouns as used throughout include their plural forms and vice versa; similarly, gender pronouns include their corresponding pronouns, and therefore should not be construed as limiting anything described herein to use, implementation, execution, etc., by a single gender; “exemplary” should be understood as “illustrative” or “illustrated” and not necessarily “preferred” relative to other embodiments. Further definitions of terms may be listed herein; as will be understood from reading this specification, these definitions may apply to previous and subsequent instances of these terms. It should also be noted that the use of the terms “a” or “an” will in all cases be understood to mean “at least one” unless expressly stated otherwise, or unless it will be understood that it clearly must mean “an”.

[0028] As used herein, the terms “comprises” and “comprising” will be understood as inclusive and open-ended, not exclusive. Specifically, when used in the specification and claims, the terms “comprises” and “comprising” and variations thereof mean including the specified features, steps, or components. These terms should not be construed as excluding the presence of other features, steps, or components.

[0029] As used herein, the terms “about” and “approximately” are intended to cover variations that may exist within the upper and lower limits of a numerical range, such as variations in properties, parameters, and dimensions.

[0030] Modifications, additions, or omissions may be made to the systems, apparatuses, and methods described herein without departing from the scope of this disclosure. For example, components of the systems and apparatuses may be integrated or separate. Furthermore, the operation of the systems and apparatuses disclosed herein may be performed by more, fewer, or other components, and the methods described may include more, fewer, or other steps. Moreover, the steps may be performed in any suitable order. As used herein, “each” means each member of a set or each member of a subset of a set.

[0031] The embodiments described herein are exemplary (e.g., in terms of materials, shape, size, and structural details) and are not limited to the appended claims and any modifications thereof. Those skilled in the art will understand that many more possible alternative embodiments and modifications exist, and the following examples are merely illustrative of one or more embodiments. Therefore, the scope of this disclosure is limited only by the appended claims and any modifications thereof.

[0032] refer to Figures 1 to 11A suction-generating toy 10 according to an embodiment of this disclosure is provided. For clarity, the term "suction-generating toy" is intended to mean a toy that can move and generate suction, enabling it to move along a wall and optionally along a ceiling. The suction-generating toy 10 may be called a suction-generating toy even when not in operation, simply because it has the ability to generate suction when in operation. In other words, at any given time, whether the suction-generating toy 10 is being operated to generate suction or not, it will still be considered a suction-generating toy.

[0033] 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 with at least one opening 28 formed therein. The electric fan element 26 is fluidly coupled to the at least one opening 28 and configured to draw air into the at least one opening 28 to create a low-pressure area therearound. The suction-generating toy 10 also 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 respective figures). 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 positioned to engage a surface (S) to drive the toy 10, which generates suction, along the surface (S). The first auxiliary wheel 62 is rotatably connected to the first drive motor 68. Therefore, it can be said that the first drive motor 68 is operatively connected to the first main drive wheel 60 and the first auxiliary wheel 62. In an embodiment where the output speed of the first drive motor 68 is reduced to the required output speed of the first main drive wheel 60 and the first auxiliary wheel 62, the first drive motor 68 may be operatively connected to the first main drive wheel 60 and the first auxiliary wheel 62 via an optionally configured first gear mechanism 71. Alternatively, any other suitable reduction gear may be used instead of the first gear mechanism 71 to reduce the speed of the first drive motor 68 to the required output speed of the first main drive wheel 60 and the first auxiliary wheel 62.

[0034] The first drive assembly further includes a first linkage element 64, which 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 linkage element 64 moves through a first motion path. The second end 64b is connected to the first limb element 30, such that when the first end 64a moves through the first motion path, the first linkage element 64 drives the first limb element 30 to pivot between a first rotational position and a second rotational position. Specifically, as follows... 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 toy 10 that generates suction. The first auxiliary wheel 62 and the first linkage element 64 are disposed on the second lateral side (I) of the chassis 20 opposite to the first lateral side (I) of the chassis 20, so that when the toy 10 that generates suction is in a selected orientation on the surface (S), the torque exerted by the weight of the first main drive wheel 60 about the longitudinal axis (L1) of the chassis 20 is at least partially counteracted.

[0035] In an example Figures 2 to 8 In the additional embodiment 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.

[0036] In an example Figures 1 to 11 In the embodiment shown, the first main drive wheel 60 has a textured drive surface 60a to make the surface (S) more firmly bonded to the first main drive wheel 60 when the toy 10 that generates suction is driven along the surface (S).

[0037] 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 or base for the suction-generating toy 10, and the chassis 20 includes a main chassis frame. The chassis 20 also includes a bottom surface on which at least one opening 28 is located.

[0038] exist Figure 2 , 3 In the specific embodiments shown in 5A, 5B, 6, 10, and 11, the chassis 20 includes a base plate 82 mounted on the main frame of the chassis 20. The base plate 82 is generally rectangular, and the bottom surface of the chassis 20 is defined on the bottommost surface of the base plate 82. At least one opening 28 is located at the center of the bottommost surface of the base plate 82 and extends upward through the base plate 82.

[0039] In an example Figure 7 , 8 In the embodiment shown in Figure 9, the structure of the chassis 20 of the toy 10 that generates suction is illustrated, wherein the base plate 82 is removed, thereby 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.

[0040] In an additional embodiment, the chassis 20 includes a flexible skirt element 84 that is connected 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 the periphery surrounding the low-pressure area generated by the electric fan element 26.

[0041] exist Figures 2 to 8 In the provided specific embodiment, a flexible skirt 84 is mounted on and extends downward from a base plate 82. The flexible skirt 84 extends around the rectangular outer edge of the base plate 82. The flexible skirt 84 is formed as a discontinuous skirt 84, wherein gaps are formed in the flexible skirt 84 at specific points along its length, allowing air to flow through the flexible skirt 84 from one or more directions and into a low-pressure area. The location and size of the gaps in the flexible skirt 84 can be selected to control the flow rate of air capable of flowing through the flexible skirt 84.

[0042] In an additional embodiment, a chassis 20 defines a fluid conduit therein, wherein the fluid conduit is fluidly connected to at least one opening 28 formed through a base plate 82 of the chassis 20. An 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), on which the fan 26 is mounted. The fan 26a of the electric fan element 26 is configured to be driven by the fan motor 26b to draw air upward from an area defined below the base plate 82. Therefore, it can be understood that when the electric fan element 26 is activated, the fan 26a of the electric fan element 26 draws air upward into the fluid conduit, creating a low-pressure area below the toy 10 that generates suction. The pressure difference between the low-pressure area and the area surrounding the low-pressure area is determined by the thrust of the electric fan element 26 and the 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 the pressure difference is large enough to generate a suction force sufficient to overcome the gravitational force acting on the toy 10 when it is on a vertical or inverted surface (S) (e.g., a wall or ceiling), the toy 10 can self-attach to the surface (S). In other words, in some embodiments, the electric fan element 26 is operable to generate suction to hold the toy 10 on a vertical surface (S) (e.g., a wall). In some other embodiments, the electric fan element 26 is operable to generate suction to hold the toy 10 on an inverted surface (S) (e.g., a ceiling).

[0043] In one embodiment, the suction-generating toy 10 includes a toy shell 22, which is attached to a chassis 20 and configured to provide a recognizable shape or image as an integral part of the chassis 20 and the suction-generating toy 10.

[0044] exist Figures 1 to 11 In one specific embodiment, the toy 10 that generates suction has a structure similar to a gecko and a gecko-like shape. In this embodiment, the structure of the toy shell 22 is similar to the torso of a gecko.

[0045] In an example Figures 1 to 11 In the illustrated embodiment, the suction-generating toy 10 further includes a second limb element 40, which is pivotally attached to the chassis for pivoting between a third rotational position and a fourth rotational position (see respective figures). 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) imitated by the suction-generating toy 10.

[0046] In such Figure 5C In the illustrated additional embodiment, the suction-generating toy 10 is structured 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, which 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).

[0047] In another example Figures 1 to 7 In the illustrated additional embodiment, the first limb element 30 is pivotally connected to a first longitudinal side (III) of the chassis 20, and the second limb element 40 is pivotally connected to a second longitudinal side (IV) of the chassis 20. 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 toy 10 that generates suction, and the second limb element 40 is pivotally connected near the rearmost end of the chassis 20.

[0048] In yet another embodiment, the suction-generating toy 10 is configured to co-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.

[0049] The second drive motor 78 is operatively connected to the second main drive wheel 70 and the second auxiliary wheel 72. In embodiments where the output speed of the second drive motor 78 needs to be reduced to the required output speed of the second main drive wheel 70 and the second auxiliary wheel 72, the second drive motor 78 may be operatively connected to the second main drive wheel 70 and the second auxiliary wheel 72 via an optionally configured second gear assembly 73. Alternatively, any other suitable reduction gear may be used instead of the second gear assembly 73 to reduce the speed of the second drive motor 78 to the required output speed of the second main drive wheel 70 and the second auxiliary wheel 72.

[0050] exist Figure 5A and Figure 5B In the specific embodiment shown, a first rotational position of the first limb element 30 is defined such that the angle (A1) between the axis of the first limb element 30 passing through its center point and the axis (L3) parallel to the transverse axis (L2) of the toy 10 generating suction is approximately zero. A second rotational position of the first limb element 30 is defined such that the angle (A1) between the axis of the first limb element 30 passing through its center point and the transverse axis (L2) of the toy 10 generating suction is greater than zero and in a clockwise direction. Similarly, a third rotational position of the second limb element 40 is defined such that the angle (A2) between the axis of the second limb element 40 passing through its center point and another axis (L4) parallel to the transverse axis (L2) of the toy 10 generating suction is approximately zero. The fourth rotational position of the second limb element 40 is defined in such a position that 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 (L4) parallel to the transverse axis (L2) of the toy 10 that generates suction is greater than zero and is in the counterclockwise direction.

[0051] exist Figures 1 to 10 In the provided specific embodiment, each of the first limb element 30 and the second limb element 40 is formed to have a pair of opposing end members, wherein each 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.

[0052] 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 pivoting structure for pivotally connecting each of the respective first limb element 30 and the second limb element 40 to the chassis 20 of the toy 10 that generates suction.

[0053] exist Figures 8 to 11 In the specific embodiment shown, the pivoting structure of the first limb element 30 includes a first pivoting structure 33, wherein the first pivoting 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 and extend outward therefrom opposite sides of the first pivoting structure 33. Similarly, the pivoting structure of the second limb element 40 includes a second pivoting structure 43, wherein the second pivoting 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 and extend outward therefrom opposite sides of the second pivoting structure 43. 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 hollow bottoms 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 required from the electric fan element 26 to adhere the suction-generating toy 10 to the surface (S).

[0054] In an example Figures 5A to 6 , Figure 10 and Figure 11 In the illustrated additional embodiment, chassis 20 includes a first pivot flange 24a that extends outwardly from chassis 20 and is configured to pivotally support each of the head element 94 and the first limb element 30, thereby forming part of the first pivot assembly 34 together with them. Similarly, in an example Figures 5A to 6 , Figure 10 and Figure 11 In the illustrated embodiment, 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 the second pivot assembly 44 together with them.

[0055] exist Figure 10 and Figure 11In the provided specific implementation, the first pivot flange 24a extends outward to near the foremost end of the chassis 20, and the second pivot flange 24b extends outward to 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.

[0056] In an example Figures 4 to 11 In the illustrated embodiment, the suction-generating toy 10 is constructed with a second wheel element on which it is supported. This second wheel element can function either as an idler wheel, 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 a chassis to engage a surface (S), thereby driving the suction-generating toy 10 along the surface (S).

[0057] In an example Figures 1 to 11 In the embodiment shown, the second main drive wheel 70 also has a textured drive surface 70a to make the surface (S) more firmly bonded to the second main drive wheel 70 when the toy 10 that generates suction is driven along the surface (S).

[0058] In one embodiment, the steering control of the suction-generating toy 10 disclosed herein is primarily driven by "slide 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 changing the speed of a first or second side of the suction-generating toy 10 via at least one of the first main drive wheel 60 and the second main drive wheel 70. To drive the suction-generating toy 10 to rotate and / or pivot, the first main drive wheel 60 and / or the second main drive wheel 70 are controlled to rotate in opposite directions, causing the suction-generating toy 10 to rotate in a first or second rotational direction, thereby causing the first main drive wheel 60 and the second main drive wheel 70 to drag (or slide) on the surface (S), thus steering the suction-generating toy 10.

[0059] 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, wherein the first and second drive motors are located completely on opposite sides of the vehicle's longitudinal axis. Furthermore, any linkages connecting each motor to a limb of the simulated character are located on the same side of the longitudinal axis as the drive motor. Therefore, there is a relatively large uncompensated weight at the front of the vehicle on one side of the longitudinal axis, and a similarly large uncompensated weight at the rear of the vehicle on the other side of the longitudinal axis. 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 it to the right, making the vehicle difficult to control precisely. The term "uncompensated weight at the front of the vehicle on one side of the longitudinal axis" means that the weight at the front of the vehicle on one side of the longitudinal axis is not equivalent to the weight at the front of the vehicle on the other side of the longitudinal axis. Generally, uncompensated weight at a point along the length of the vehicle on one side of the longitudinal axis refers to the weight at that point along the length of the vehicle on one side of the longitudinal axis, while there is no equivalent weight at that point along the length of the vehicle on the other side of the longitudinal axis.

[0060] In contrast, the suction-generating toy 10 of this disclosure has at least one feature that reduces the amount of uncompensated weight on one side of the longitudinal axis L1 at the front of the suction-generating toy 10 (e.g., the second side (II)) and reduces the amount of uncompensated weight on the other side of the longitudinal axis L1 at the rear of the suction-generating toy 10 (e.g., the first side (I)).

[0061] 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 that provides the second drive motor 78; and the positions of the first auxiliary wheel 62 and the first linkage element 64, and the positions of the second auxiliary wheel 72 and the second linkage element 74 in an embodiment that provides the second auxiliary wheel 72 and the second linkage element 74.

[0062] Regarding the position of the first drive motor 68, it should be noted that the first portion 68a of the first drive motor 68 is positioned on the first side (I) of the longitudinal axis L1, while the second portion 68b of the first drive motor 68 is positioned on the second side (II) of the longitudinal axis L1. Similarly, regarding the position of the second drive motor 78, it should be noted that the first portion 78a of the second drive motor 78 is positioned on the first side (I) of the longitudinal axis L1, while the second portion 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 both the first drive motor 68 and the second drive motor 78 are simultaneously provided, it is possible that only the first drive motor 68 is positioned such that the first portion 68a is positioned on the first side (I) of the longitudinal axis L1, while the second portion 68b is positioned on the second side (II) of the longitudinal axis L1.

[0063] Regarding the positions of the first auxiliary wheel 62 and the first linkage element 64, it should be noted that the first auxiliary wheel 62 and the first linkage 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 longitudinally along the length of the toy 10 that generates suction, and the first auxiliary wheel 62 is positioned longitudinally along the length of the toy 10 that generates suction (at the same longitudinal position as the first drive wheel). It should also be noted that the first linkage element 64 is positioned laterally further from the longitudinal axis L1 than the first gear assembly 71. Therefore, although the weight of the first linkage element 64 is less than that of the first gear assembly 71, the first linkage element 64 also has the ability to offset the weight improvement of the first gear assembly 71.

[0064] Similarly, it should be noted that the second auxiliary wheel 72 and the second linkage 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 longitudinally along the length of the suction-generating toy 10, and the second auxiliary wheel 72 is positioned longitudinally along the length of the suction-generating toy 10 (at the same longitudinal position as the second drive wheel). It should also be noted that the second linkage element 74 is positioned laterally further from the longitudinal axis L1 than the second gear mechanism 71. Therefore, although the weight of the second linkage element 74 is less than that of the second gear mechanism 73, when the suction-generating toy 10 is turned left or right, especially when the suction-generating toy 10 is oriented directly upwards or downwards against a wall, the second linkage element 74 has the ability to counteract the weight of the second gear mechanism 73.

[0065] 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 similar responsiveness when turning to the left as when turning to the right, especially when the suction-generating toy 10 starts turning from an initial orientation directly upward or downward on the wall.

[0066] In an example Figure 2 , 3 5A-5D and Figures 6 to 11 In the illustrated additional embodiment, the suction-generating toy 10 includes a pair of pivot bodies 83 extending downward beyond the bottom surface of the chassis 22 defined by the lowest 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 way, each of the pair of pivot bodies 83 serves as a pivot point for supporting the suction-generating toy 10 on the 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 the first rotational direction or the 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 primarily "slide steering" control. By providing a pair of pivot bodies 83 extending below the bottom surface of the chassis 20, the suction-generating toy 10 will be partially supported on the pair of pivot bodies 83 when sliding and rotating in the first rotational direction or the second rotational direction.

[0067] exist Figure 2 , 3 5A-5D and Figures 6 to 11 In the specific embodiment shown, the pair of pivoting bodies 83 are mounted to the chassis 20 and extend downward through an opening in the mounting plate 82, such that the lowest portion of the pair of pivoting bodies 83 is positioned below the lowest surface of the mounting plate 82. The lowest portion of the pair of pivoting bodies 83 is formed as a generally convex surface to allow for smoother pivoting of the pair of pivoting bodies 83 on the surface (S). The pair of pivoting bodies 83 are positioned diagonally opposite each other on the mounting plate 82, such that the pair of pivoting bodies 83 are equidistant from the longitudinal axis (L1) and the transverse axis (L2) of the chassis.

[0068] In an example Figure 5C In the illustrated embodiment, the first main drive wheel 60 is disposed on the first lateral side (I) of the chassis 20, and the second main drive wheel 70 is disposed on the second lateral side (II) of the chassis 20 opposite to the first lateral side (I). Furthermore, 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.

[0069] In an additional embodiment, the suction-generating toy 10 is configured such that a first main drive wheel 60 is positioned in front of the center of gravity of the suction-generating toy 10, a first auxiliary wheel 62 is positioned in front of the center of gravity of the suction-generating toy 10, and a second main drive wheel 70 is positioned behind the center of gravity of the suction-generating toy 10, so that when the suction-generating toy 10 is in a selected orientation on the surface (S), the torque exerted by the weight of the first main drive wheel 60 and the auxiliary drive wheel about the lateral axis (L2) of the chassis 20 is at least partially counteracted.

[0070] In example Figures 4 to 11 In the illustrated embodiment, the suction-generating toy 10 is further configured to drive the movement of the second limb element 40 via a second main drive wheel 70. In this embodiment, the suction-generating toy 10 also includes a second drive assembly, which 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 linkage element 74 connecting 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.

[0071] In an additional embodiment, the second auxiliary wheel 72 is positioned behind the center of gravity (COG) of the toy 10 that generates suction.

[0072] In example Figures 5A to 8 In the illustrated embodiment, a first drive assembly is disposed on a first longitudinal side (III) of the chassis 20, which is defined relative to the transverse axis (L2) of the chassis 20 (which passes through the center of gravity (COG) of the toy 10 that generates suction), and a second drive assembly is disposed on a second longitudinal side (IV) of the chassis 20 opposite to the first side and spaced apart relative to the transverse axis (L2) of the chassis 20, so as to at least partially counteract the torque exerted by the weight of the first drive assembly about the transverse axis (L2) of the chassis 20 when the toy 10 that generates suction is in a selected orientation on the surface (S).

[0073] In one embodiment, the second linkage element 74 of the second drive assembly includes a first end 74a and a second end 74b. The first end 74a is 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 linkage element 74 moves through a second motion path. The second end 74b is connected to the second limb element 40, such that when the first end 74a of the second linkage element 74 moves through the second motion path, the second limb element 40 pivots between a third rotational position and a fourth rotational position (see respective figures). Figure 5A and Figure 5B ).

[0074] exist Figure 7 and Figure 8 In the provided specific embodiments, 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 a first longitudinal side (III) of the chassis 20, and the second drive motor 78 is positioned on a second longitudinal side (IV) of the chassis 20. The first gear assembly 71 includes a first output shaft 69 extending laterally from both sides of the first gear assembly 71. A first main drive wheel 60 is mounted to the first output shaft 69 on one side of the first gear assembly 71, and a first auxiliary wheel 62 is driven (at least indirectly) by the first output shaft 69 on the other side of the first gear assembly 71. In the illustrated embodiment, a first shaft extension 91 is mounted to the first output shaft 69, and a first auxiliary wheel shaft 93 is mounted to the first shaft extension 91, thereby being driven by the first output shaft 69. Therefore, 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.

[0075] As described above, the first main drive wheel 60 and the first auxiliary wheel 62 are respectively disposed on opposite first lateral side (I) and second lateral side (II) of the toy 10 that generates suction. The second gear device 73 includes a second output shaft 79 extending laterally from 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, a second shaft extension 95 is mounted to the second output shaft 79, and a second auxiliary wheel shaft 97 is mounted to the second shaft extension 95, thereby being driven by the second output shaft 79. Therefore, 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.

[0076] In an embodiment where the suction-generating toy 10 also includes a second drive assembly, the first main drive wheel 60 and the second main drive wheel 70 can each 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 make the suction-generating toy 10 move forward, backward, or turn in either direction.

[0077] In an additional embodiment, the suction-generating toy 10 includes at least one decorative element attached to the chassis 20 and configured to provide additional, identifiable shape or appearance to the overall form of the suction-generating toy 10. For example, in the above-described 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.

[0078] 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 along the 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.

[0079] In example Figures 1 to 11 In the illustrated embodiment, at least one decorative element includes a head element 94 pivotally connected to a chassis 20 and a tail element 96 pivotally connected to a chassis 20. The head element 94 is pivotally connected to the vicinity of the foremost end of the chassis 20 via a first pivot assembly 34, and the tail element 96 is pivotally connected to the vicinity of the rearmost end of the chassis 20 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 the 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.

[0080] exist Figures 1 to 5B and Figure 11 In the specific embodiment shown, the head element 94 includes a head body having a planar pattern and a lower head surface that is generally concave and defined on the bottom 94a of the head body. The head element 94 also includes a head pivot flange 94b that extends from the head body and is configured to pivotally connect to a first pivot flange 24a (and a first pivot structure 33 of the first limb element 30).

[0081] In 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 an articulated tail element 96, comprising a plurality of hinge bodies 96a and pivotally connected near the rear end of the chassis 20. The articulation of the tail element 96 causes each hinge body 96a of the articulated tail element 96 to move relative to each other in a serpentine manner when the suction-generating toy 10 is turned by at least the main drive wheel of the first drive assembly, causing the articulated tail element 96 to swing left and right.

[0082] exist Figures 1 to 3 , Figure 5A , Figure 5B and Figure 11 In the specific embodiment shown, the articulated tail element 96 includes a plurality of articulated bodies 96a and a spline plate 97 defining the overall length and shape of the tail. The articulated tail element 96 also includes a tail pivot flange 96b extending from one end of the spline plate 97 and pivotally connected as part of a second pivot assembly 44 to a second pivot structure 43 of the chassis 20 and / or the second limb element 40. Each of the plurality of articulated 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 articulated bodies 96a is movable relative to the spline plate 97 to produce an articulated serpentine movement of the tail.

[0083] In at least some embodiments, the hinge body 96a of the articulated tail element 96 is integrally formed with the spline plate 97, but is movable relative to the spline plate 97. In at least some other embodiments, the hinge body 96a of the articulated tail element 96 is different from the spline plate 97 and is movably connected along the spline plate 97.

[0084] In example Figure 6 , 7 8 and Figure 9 In the illustrated embodiment, the first drive assembly of the toy 10 that generates suction is configured such that the first auxiliary wheel 62 includes a first eccentric pin 65. A first end 64a of a first linkage element 64 is pivotally connected to the first eccentric pin 65, such that the first eccentric pin 65 defines an eccentric portion of the first auxiliary wheel 62. A second end 64b of the first linkage 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, driving 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 also rotate, and the first end 64a of the first linkage element 64 moves along a predetermined range of motion. The movement of the first end 64a of the first linkage element 64 along the predetermined range of motion moves the second end 64b of the first linkage element 64 to drive the first limb element 30 between a first rotational position and a second rotational position.

[0085] In the same embodiment, the second drive assembly of the toy 10 that generates suction is configured such that the second auxiliary wheel 72 includes a second eccentric pin 75. A first end 74a of the second linkage 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 linkage 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, driving the second main drive wheel 70 to rotate with the second output shaft 79, the second auxiliary wheel 72 and the second eccentric pin 75 also rotate, and the first end 74a of the second linkage element 74 moves along a predetermined range of motion. The movement of the first end 74a of the second linkage element 74 along the predetermined range of motion moves the second end 74b of the second linkage element 74 to drive the second limb element 40 between a third rotational position and a fourth rotational position.

[0086] exist 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.

[0087] In some embodiments, the first drive assembly and the second drive assembly are controlled to rotate the first main drive wheel 60 and the second main drive wheel 70, as well as the first auxiliary wheel 62 and the second auxiliary wheel 72, 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 toy 10 that generates suction, and such that the first limb element 30 and the second limb element 40 move in concert to mimic lifelike movements.

[0088] In an additional embodiment, the suction-generating toy 10 includes at least one controller operatively connected to a first drive motor 68 and a 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).

[0089] In another additional embodiment, 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 at least one controller. In this way, the toy 10 that generates suction can become a remote-controlled toy.

[0090] The specific embodiments described above have been illustrated by way of example, and it should be understood that these embodiments may have various modifications and alternative forms. It should also be understood that the above embodiments are intended as examples of this disclosure, and that those skilled in the art may make changes and modifications to them without departing from the scope of this disclosure as defined solely by the appended claims.

[0091] Figure Labels

[0092] 10 Toys that generate suction

[0093] 20 Chassis

[0094] 22. Shell

[0095] 24a First pivot flange

[0096] 24b Second pivot flange

[0097] 26 Electric fan components

[0098] 26A Fan

[0099] 26b motor

[0100] 28 Opening

[0101] 29 Mounting Arm

[0102] 30 First limb components

[0103] 30a Hollow bottom of the first limb element

[0104] 33 First Pivoting Structure

[0105] 34 First pivot assembly

[0106] 40 Second limb components

[0107] 40a Hollow bottom of the second limb element

[0108] 43 Second pivot structure

[0109] 44 Second pivot assembly

[0110] 60 First main drive wheel

[0111] 60a Texture-driven surface

[0112] 62 First Auxiliary Wheel

[0113] 64 First Linkage Element

[0114] 64a First end of the first connecting rod element

[0115] 64b Second end of the first link element

[0116] 64c First group of fork arms

[0117] 65 First eccentric pin

[0118] 67 First pin connection point

[0119] 67a First pin

[0120] 68 First drive motor

[0121] 69 First Output Shaft

[0122] 70 Second main drive wheel

[0123] 70a Texture-Driven Surface

[0124] 71 First Gear Device

[0125] 72 Second Auxiliary Wheel

[0126] 73 Second Gear Device

[0127] 74 Second Linkage Component

[0128] 74a First end of the second link element

[0129] 74b Second end of the second link element

[0130] 74c Second group fork arm

[0131] 75 Second eccentric pin

[0132] 77 Second pin connection point

[0133] 77a Second Pin

[0134] 78 Second drive motor

[0135] 79 Second Output Shaft

[0136] 82 base plate

[0137] 83 Pivotal Body

[0138] 84 Skirt

[0139] 91 First Axis Extension

[0140] 93 First Auxiliary Wheel Axle

[0141] 95 Second shaft extension

[0142] 97 Second Auxiliary Wheel Axle

[0143] 94 Head

[0144] 94a Hollow bottom of the head

[0145] 94b Head pivot flange

[0146] 96 Tail-end components

[0147] 96a Hinged Body

[0148] 96b Tail pivot flange

[0149] 97. Spline plate.

Claims

1. A toy that generates suction, comprising: 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 create a low-pressure zone therearound; A first limb element, which is pivotally attached to the chassis to pivot between a first rotational position and a second rotational position; and The first driving component includes: First drive motor; A first main drive wheel is rotatably connected to the first drive motor and positioned to engage a surface to drive the suction-generating toy along the surface; A first linkage element has a first end and a second end, wherein the first end is movable along a predetermined range of motion, causing the second end to move to drive the first limb element between a first rotational position and a second rotational position. The first driving component is characterized in that it further includes... The tail element is hinged and includes a spline plate and a plurality of hinge bodies that move relative to each other as the tail element swings left and right during the rotation of the toy that generates suction.

2. The toy that generates suction according to claim 1, characterized in that, The toys that generate suction also include A second main drive wheel is positioned to engage the surface to drive the suction-generating toy along the surface; The first main drive wheel is disposed on the first lateral side of the chassis; The second main drive wheel is disposed on the second lateral side of the chassis opposite to the first lateral side; and The second main drive wheel is longitudinally spaced from the first main drive wheel.

3. The toy that generates suction according to claim 2, wherein, The first main drive wheel is positioned in front of the center of gravity of the toy that generates suction; The first auxiliary wheel is positioned in front of the toy's center of gravity, which generates suction; and The second main drive wheel is positioned behind the center of gravity of the toy that generates suction.

4. The toy that generates suction according to claim 2, characterized in that, The toys that generate suction also include: The second limb element is pivotally attached to the chassis for pivoting between a third rotational position and a fourth rotational position.

5. The toy that generates suction according to claim 4, characterized in that, The toys that generate suction also include: The second drive assembly includes a second main drive wheel, a second drive motor, and a second linkage element connecting the second auxiliary wheel and the second limb element. The second main drive wheel is rotatably connected to the second drive motor.

6. The toy that generates suction according to claim 5, wherein, The second linkage element includes: A first end and a second end, wherein the first end of the second linkage element is movable along another predetermined range of motion, causing the second end of the second linkage element to move to drive the first limb element of the second linkage element between the third rotational position and the fourth rotational position.

7. The toy that generates suction according to claim 5, 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 to the first longitudinal half and spaced apart relative to the transverse axis of the chassis, so as to at least partially counteract the torque exerted 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.

8. The toy that generates suction according to claim 4, wherein, The first limb element is pivotally connected to a first longitudinal half of the chassis; and the second limb element is pivotally connected to a second longitudinal half of the chassis.

9. The toy that generates suction according to claim 2, wherein, The first part of the first drive motor is located on the first side of the longitudinal axis, and the second part of the first drive motor is located on the second side of the longitudinal axis.

10. The toy that generates suction according to claim 1, characterized in that, The toys that generate suction also include: A second main drive wheel is positioned to engage the surface to drive the suction-generating toy along the surface; The first main drive wheel is disposed on the first lateral side of the chassis; The second main drive wheel is disposed on the second lateral side of the chassis opposite to the first lateral side; and The second main drive wheel is longitudinally spaced from the first main drive wheel. The first main drive wheel is positioned in front of the center of gravity of the toy that generates suction. The first auxiliary wheel is positioned in front of the toy's center of gravity, which generates suction. The second main drive wheel is positioned behind the center of gravity of the toy that generates suction. The first part of the first drive motor is located on the first side of the longitudinal axis of the chassis, and the second part of the first drive motor is located on the second side of the longitudinal axis of the chassis.

Images