US 10,737,188 B2Granted

Autonomous, gravity-assisted motorized racer configured to travel through non-straight tube segments

AssigneeMIEH, Inc.

InventorsDiane M. Farrell, Jason M. Lynch, James M. Rasmussen, Maxwell B. Rothschild, Wayne H. Rothschild

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Abstract

A vehicle configured to move through a network of interconnected tubes includes a body, a motor, a motorized wheel, a biasing assembly, and a first element. The motorized wheel directly engages an inner surface of the tubes. The biasing assembly causes the motorized wheel to maintain continuous contact with the inner surface of the tubes during operation. A waist of the vehicle is constrained by an inner diameter (D) of the curved tube, a radius of curvature (R) of the curved tube, and a length (L) of the wheelbase of the vehicle. The waist of the body is sized such that the vehicle can freely move within any of the tubes without getting stuck therein.

Claims15

Dependent claims

A vehicle configured to move through a series of interconnected tubes, the series of interconnected tubes including a curved tube having a radius of curvature (R) and an inner diameter (D), the vehicle comprising:

a body having a longitudinal axis and a waist (d) that is generally perpendicular to the longitudinal axis and defines a circumferentially extending width of the body at a central portion of the body;
a motor positioned within the body and coupled to a battery that powers the motor;
a motorized wheel mechanically coupled to the motor, the motorized wheel at least partially extending out from the body adjacent to a first end of the body such that the motorized wheel is configured to directly engage an inner surface of the series of interconnected tubes;
a biasing assembly positioned to cause the motorized wheel to maintain continuous contact with the inner surface of the series of interconnected tubes during operation of the motor;
and
a first element at least partially extending out from the body adjacent to a second opposing end of the body such that the first element is configured to directly engage the inner surface of the series of interconnected tubes,
wherein a length (L) of a wheelbase of the vehicle is the distance between a center of the motorized wheel and a center of the first element,
wherein the waist (d) is constrained by (i) the inner diameter (D) of the curved tube, (ii) the radius of curvature (R) of the curved tube, and (iii) the length (L) of the wheelbase, and
wherein the waist (d) of the body is constrained by the following formula
d
=
D
-
2
⁢
(
R
-
R
2
-
(
L
2
)
2
⁢
)
such that the waist (d) of the body is sized such that no matter how the vehicle rotates about the longitudinal axis as the vehicle moves through the series of interconnected tubes, the waist (d) is always observed to prevent the body from contacting the inner surface of the series of interconnected tubes, thereby allowing the vehicle to freely move within any of the series of interconnected tubes without getting stuck therein.

26 more elements

A vehicle configured to propel through a network of interconnected tubes including at least one curved tube having a radius of curvature (R) and an inner diameter (D), the vehicle comprising:

a body having a longitudinal axis and a circumferential waist (d) that is orthogonal to the longitudinal axis and that circumscribes the outermost structures of the vehicle at a central portion thereof;
a motor positioned within the body and coupled to a battery that powers the motor;
a motorized wheel positioned along the body and mechanically coupled to the motor, the motorized wheel at least partially extending out from the body adjacent to a first end of the body such that the motorized wheel is configured to directly engage an inner surface of the network of interconnected tubes;
a biasing assembly configured to cause the motorized wheel to maintain contact with the inner surface of the network of interconnected tubes during operation of the motor;
and
a first contacting element at least partially extending out from the body adjacent to a second opposing end of the body such that the first contacting element is configured to directly contact the inner surface of the network of interconnected tubes as the vehicle is propelled therethrough by the motor,
wherein a length (L) of a wheelbase of the vehicle corresponds to a distance between a center of the motorized wheel and a center of the first contacting element, and wherein dimensions of the length (L) of the wheelbase and of the circumferential waist (d) have the following constraints:
a maximum circumference of the waist (d) is constrained by a first ratio between (i) the inner diameter (D) of the at least one curved tube and (ii) a smallest radius of curvature (R) among the at least one curved tube, wherein the ratio is between 0.130 and 0.365;
and a maximum length (L) of the wheelbase is constrained by the first ratio and the maximum circumference of the waist (d), such that no matter how the vehicle rotates about the longitudinal axis as the vehicle is propelled around any of the at least one curved tube, the maximum circumference of the waist (d) is always observed to prevent any part of the body from contacting any part of the inner surface of the at least one curved tube, and wherein the waist (d) of the body is constrained by the following formula:
d
=
D
-
2
⁢
(
R
-
R
2
-
(
L
2
)
2
⁢
)
.

26 more elements

a body having a longitudinal axis and a waist (d) that is generally perpendicular to the longitudinal axis and defines a circumferentially extending width of the body at a central portion of the body;
a motor positioned within the body and coupled to a battery that powers the motor;
a motorized wheel mechanically coupled to the motor, the motorized wheel at least partially extending out from the body adjacent to a first end of the body such that the motorized wheel is configured to directly engage an inner surface of the series of interconnected tubes;
a biasing assembly positioned to cause the motorized wheel to maintain continuous contact with the inner surface of the series of interconnected tubes during operation of the motor;
and
a first element at least partially extending out from the body adjacent to a second opposing end of the body such that the first element is configured to directly engage the inner surface of the series of interconnected tubes,
wherein a length (L) of a wheelbase of the vehicle is the distance between a center of the motorized wheel and a center of the first element,
wherein the waist (d) is constrained by (i) the inner diameter (D) of the curved tube, (ii) the radius of curvature (R) of the curved tube, and (iii) the length (L) of the wheelbase, and
wherein the waist (d) of the body is constrained by the following formula
d
=
D
-
2
*
(
R
-
(
R
*
cos
⁢
⁢
θ
2
)
)
,
where θ is an angle between a first radius of curvature (R) through the center of the motorized wheel and a second radius of curvature (R) through the center of the first contacting element, such that the waist (d) of the body is sized such that no matter how the vehicle rotates about the longitudinal axis as the vehicle moves through the series of interconnected tubes, the waist (d) is always observed to prevent the body from contacting the inner surface of the series of interconnected tubes, thereby allowing the vehicle to freely move within any of the series of interconnected tubes without getting stuck therein.

27 more elements

A vehicle configured to propel through a network of interconnected tubes including at least one curved tube having a radius of curvature (R) and an inner diameter (D), the vehicle comprising:

a body having a longitudinal axis and a circumferential waist (d) that is orthogonal to the longitudinal axis and that circumscribes the outermost structures of the vehicle at a central portion thereof;
a motor positioned within the body and coupled to a battery that powers the motor;
a motorized wheel positioned along the body and mechanically coupled to the motor, the motorized wheel at least partially extending out from the body adjacent to a first end of the body such that the motorized wheel is configured to directly engage an inner surface of the network of interconnected tubes;
a biasing assembly configured to cause the motorized wheel to maintain contact with the inner surface of the network of interconnected tubes during operation of the motor;
and
a first contacting element at least partially extending out from the body adjacent to a second opposing end of the body such that the first contacting element is configured to directly contact the inner surface of the network of interconnected tubes as the vehicle is propelled therethrough by the motor,
wherein a length (L) of a wheelbase of the vehicle corresponds to a distance between a center of the motorized wheel and a center of the first contacting element, and wherein dimensions of the length (L) of the wheelbase and of the circumferential waist (d) have the following constraints:
a maximum circumference of the waist (d) is constrained by a first ratio between (i) the inner diameter (D) of the at least one curved tube and (ii) a smallest radius of curvature (R) among the at least one curved tube, wherein the ratio is between 0.130 and 0.365;
and a maximum length (L) of the wheelbase is constrained by the first ratio and the maximum circumference of the waist (d), such that no matter how the vehicle rotates about the longitudinal axis as the vehicle is propelled around any of the at least one curved tube, the maximum circumference of the waist (d) is always observed to prevent any part of the body from contacting any part of the inner surface of the at least one curved tube, and wherein the waist (d) of the body is constrained by the following formula:
d
=
D
-
2
*
(
R
-
(
R
*
cos
⁢
⁢
θ
2
)
)
,
where θ is an angle between a first radius of curvature (R) through the center of the motorized wheel and a second radius of curvature (R) through the center of the first contacting element.

27 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/788,758Filed 19 Oct 2017 · continuation in part
Priority: 20 Apr 2016
Published: US 2018/0043273 A115 Feb 2018
Granted: 11 Aug 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

A63H 18/028
Construction or arrangement of the trackway: looping; Jumping; Tilt-track sections
A63H 17/004
Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor: stunt-cars, e.g. lifting front wheels, roll-over or…
A63H 17/14
Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor: endless-track automobiles or trucks
A63H 17/262
Details; Accessories: chassis; Wheel mountings; Wheels; Axles; Suspensions; Fitting body portions to chassis