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GB2194457A - A wheel for a toy vehicle - Google Patents

A wheel for a toy vehicle Download PDF

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Publication number
GB2194457A
GB2194457A GB08618660A GB8618660A GB2194457A GB 2194457 A GB2194457 A GB 2194457A GB 08618660 A GB08618660 A GB 08618660A GB 8618660 A GB8618660 A GB 8618660A GB 2194457 A GB2194457 A GB 2194457A
Authority
GB
United Kingdom
Prior art keywords
wheel
paddles
vehicle
anyone
toy vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB08618660A
Other versions
GB8618660D0 (en
Inventor
Hiromi Kamikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FOUNDATION IND Co Ltd
Original Assignee
FOUNDATION IND Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FOUNDATION IND Co Ltd filed Critical FOUNDATION IND Co Ltd
Priority to GB08618660A priority Critical patent/GB2194457A/en
Publication of GB8618660D0 publication Critical patent/GB8618660D0/en
Publication of GB2194457A publication Critical patent/GB2194457A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B15/00Wheels or wheel attachments designed for increasing traction
    • B60B15/02Wheels with spade lugs
    • B60B15/10Wheels with spade lugs with radially-adjustable spade lugs; Control mechanisms therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)

Abstract

The wheel has a plurality of spaced paddles (22) mounted for pivotable movement between retracted positions (Fig. 1) in which they extend circumferentially of the wheel from respective pivots (24) in the intended direction (A) of rotation of the wheel to define a part of a ground engageable peripheral surface of the wheel, and extended positions (Fig. 3) in which they project outwardly to in use convey the vehicle through water. The paddles (22) are preferably interconnected, such as by an angularly movable spider (19), so that they pivot in unison. The paddles may extend automatically when the vehicle enters water and retract automatically when the vehicle subsequently encounters ground. The wheel may contain buoyant material. <IMAGE>

Description

SPECIFICATION A Wheel for a toy vehicle This invention relates to a wheel for a toy vehicle and to a toy vehicle having at least one such wheel.
It is known to provide wheels for toy vehicles, which have extendable claws or lugs in order that the vehicles can overcome obstacles on the ground.
The present invention, however, seeks to provide a wheel for a toy vehicle, which will convey the vehicle on ground and in water.
According to the invention, there is provided a wheel for a toy vehicle, comprising a plurality of spaced paddles mounted for pivotable movement between retracted positions in which they extend circumferentially of the wheel to define at least a part of a ground engageable peripheral surface of the wheel and extended positions in which they project outwardly to in use convey the vehicle through water.
Preferred and/or optional features of the invention are set forth in claims 2-9.
In a preferred embodiment the paddles pivot automatically from retracted to extended positions when a toy vehicle provided with such a wheel moves from ground into water, and vice versa. Movement to the extended positions may be effected by centrifugal force, gravitational force, the flow of water under the paddles or any combination thereof. This movement is facilitated by arranging for the paddies, when in retracted positions, to extend from respective pivot axes in the intended direction of rotation of the wheels as the water will assist rather than hinder such movement. Moreover, in the preferred embodiment the paddles are interconnected so that they pivot in unison. This has the advantage that all paddles will remain in retracted positions as the vehicle is conveyed on land.
The invention will now be more particularly described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a front view of one embodiment of a wheel according to the invention, with the cover plate removed and with the paddles in retracted positions, Figure 2 is a section taken along the line ll-ll of Figure 1, Figure 3 is a front view similar to that of Figure 1, - but showing the paddles in extended positions, and Figure 4 is a view taken from the right side of Figure 3 with the cover plate in position.
Referring now to the drawings, the wheel shown therein comprises a hollow shell 10 having a body part 11 and cover plate 12.
The body part 11 has an inner end portion 13 and a cylindrical wall 14 provided with eguiangularly spaced slots 15 extending parallel to the axis of the wheel and over the entire axial length of the wall 14. An elongate wheel hub 16 is formed integrally with the body part 11.
The hub 16 has a blind elongate bore 17 at its inner end for receiving an axle (not shown) as a press-fit and at its outer end it has a reduced diameter portion 18 for supporting a spider 19 and a threaded hole 20 which mates with the thread on a screw fastener 21 to secure the cover plate 12 to the body part 11.
The wheel also comprises a plurality of paddles 22. Each paddle has an arcuate blade portion 23, a pivot portion 24 provided at opposite ends with integral trunnions 25 and an inwardly projecting arm 26 at the outer end of the pivot portion 24. The trunnions 25 are located in holes provided in the end portion 13 of the body part 11 and the cover plate 12, respectively, and support the paddles 22 for pivotable movement relative to the shell 10 between retracted positions (shown in Figures 1 and 2) and extended positions (shown in Figures 3 and 4).
The spider 19 is mounted on the hub 16 for free angular movement relative thereto and has a plurality of radially extending arms 26' egual in number to the number of paddles 22.
The arms 26' have elongate slots 27 which slidably receive pegs 28 projecting outwardly from positions adjacent to the free ends of the arms 26 of the paddies 22. The spider 19 ensures that the paddles 22 pivot in unison and do not pivot independently of one another and also serves to limit the extent of pivotable movement of the paddles 22.
When in retracted positions the paddles 22 extend circumferentially of the wheel and bear against the outer surface of the wall 14. In these positions the paddles define a ground engageable peripheral surface of the wheel and as shown can be provided with a tread pattern comprising integral angularly spaced transversely extending ribs 29 in order to improve traction. Gaps 30 are provided between adjacent paddles 22 for a purpose which will become apparent later.
The wheels are mounted on a toy vehicle axle in such a way that the paddles 22, when in a retracted position, extend from their respective pivot portions 24 in the intended direction of rotation of the wheel indicated by arrow A in Figure 1. As the wheel enters water and the vehicle floats, the paddles 22 will automatically extend to the positions shown in Figures 3 and 4 as a result of the centrifugal force applied to the rotating paddles in conjunction with the force applied thereto by water which enters gaps 30 and acts on the undersides of the paddles. The paddles 22 will thus convey the vehicle through the water.
When the wheels again make contact with the ground the weight of the vehicle acting through the lowermost paddle or paddles will cause the latter to retract automatically to the position shown in Figure 1.
The wheels may contain buoyant material (not shown) such as a block of expanded polystyrene, in order to enhance the buoyancy of the wheels.
A preferred toy vehicle will have two axles both of which are driven by a battery operated motor contained within the toy vehicle and a wheel, as described above, mounted at each end of each axle.
The- above embodiment is given by way of example only and various modifications will be apparent to persons skilled in the art without departing from the scope of the invention.

Claims (13)

1. A wheel for a toy vehicle, comprising a plurality of spaced paddles mounted for pivotable movement between retracted positions in which they extend circumferentially of the wheel to define at least a part of a ground engageable peripheral surface of the wheel and extended positions in which they project outwardly to in use convey the vehicle through water.
2. A wheel as claimed in claim 1, wherein the paddles are interconnected so that they pivot in unison.
3. A wheel as claimed in claim 2, wherein the paddles are interconnected by a spider mounted for angular movement about the axis of the wheel.
4. A wheel as claimed in anyone of the preceding claims, wherein the paddles, when in retracted positions, extend from respective pivot axes in the intended direction of rotation of the wheel.
5. A wheel as claimed in anyone of the preceding claims, wherein the paddles are arranged so as to pivot automatically from said retracted to said extended positions when in use a toy vehicle provided with such a wheel moves from ground into water, and vice versa.
6. A wheel as claimed in anyone of the preceding claims, wherein the paddles are of arcuate shape.
7. A wheel as claimed in claim 6, wherein the outer surface of each paddle, as considered in its retracted position, has an imitation tread pattern.
8. A wheel as claimed in anyone of the preceding claims, wherein buoyant material is contained within the wheel.
9. A wheel as claimed in claim 8, wherein the buoyant material is expanded polystyrene.
10. A wheel for a toy vehicle, substantially as hereinbefore described with reference to the accompanying drawings.
11. A toy vehicle having at least one wheel according to anyone of the preceding claims.
12. A toy vehicle having at least two driven axles and a wheel according to anyone of claims 1-10 mounted on opposite ends of each axle for rotation therewith.
13. A toy amphibious vehicle having at least one driven wheel provided with a plurality of paddles which extend automatically when the vehicle enters water and which retract automatically when the vehicle subsequently encounters ground.
GB08618660A 1986-07-31 1986-07-31 A wheel for a toy vehicle Withdrawn GB2194457A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08618660A GB2194457A (en) 1986-07-31 1986-07-31 A wheel for a toy vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08618660A GB2194457A (en) 1986-07-31 1986-07-31 A wheel for a toy vehicle

Publications (2)

Publication Number Publication Date
GB8618660D0 GB8618660D0 (en) 1986-09-10
GB2194457A true GB2194457A (en) 1988-03-09

Family

ID=10601981

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08618660A Withdrawn GB2194457A (en) 1986-07-31 1986-07-31 A wheel for a toy vehicle

Country Status (1)

Country Link
GB (1) GB2194457A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002024417A2 (en) * 2000-09-22 2002-03-28 The Charles Stark Draper Laboratory, Inc. A transformable vehicle
US6860346B2 (en) * 2002-04-19 2005-03-01 Regents Of The University Of Minnesota Adjustable diameter wheel assembly, and methods and vehicles using same
EP1755905A2 (en) * 2004-10-26 2007-02-28 Mattel, Inc. Transformable toy vehicle
EP2012895A2 (en) * 2006-05-04 2009-01-14 Mattel, Inc. Transformable toy vehicle
US7559385B1 (en) 2004-03-10 2009-07-14 Regents Of The University Of Minnesota Ruggedized robotic vehicles
CN101844483A (en) * 2010-05-17 2010-09-29 北京航空航天大学 Variable-diameter wheel leg combined wheel structure
CN102328704A (en) * 2011-07-27 2012-01-25 中国科学院深圳先进技术研究院 Extendable wheeled mobile robot
US8260459B2 (en) 2008-05-08 2012-09-04 Regents Of The University Of Minnesota Robotic vehicle system
CN103192660A (en) * 2013-04-07 2013-07-10 杨重明 Openable car wheel and amphibious car provided with same
CN104085458A (en) * 2014-07-03 2014-10-08 电子科技大学 Leg-wheel type quadruped robot
CN104443093A (en) * 2014-11-19 2015-03-25 兰州理工大学 Unmanned ladder climbing robot
CN106347048A (en) * 2016-11-03 2017-01-25 浙江水利水电学院 Diameter-variable movable platform of amphibious wheel
CN107963140A (en) * 2017-11-17 2018-04-27 大连理工大学 Intelligent tracing climbs building load-carrying cleaning device
WO2022036546A1 (en) 2020-08-18 2022-02-24 Nikko Toys Limited Expandable wheel

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104175795B (en) * 2014-08-28 2016-05-04 北京航空航天大学 A kind of walking mechanism that deformable wheel is installed
CN112406430B (en) * 2020-11-23 2022-03-04 武汉理工大学 Multifunctional spherical driving wheel for amphibious vehicle
CN112776548A (en) * 2021-01-25 2021-05-11 杭州台创实业有限公司 Tire for amphibious robot
CN113682082B (en) * 2021-09-24 2023-04-28 广西科技大学 Travelling mechanism of deformed wheel type mobile robot

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB301091A (en) * 1927-11-24 1929-09-26 Marcel Fievet Means and apparatus for utilising the energy of fluids in motion or for facilitatingthe propulsion of vessels
GB379114A (en) * 1931-09-17 1932-08-25 Gustav Poehl Improvements in or relating to tractor wheels
GB728673A (en) * 1951-08-14 1955-04-27 Louis Colin Improvements in and relating to gripping devices for the wheels of tractors and other vehicles
GB813418A (en) * 1956-03-01 1959-05-13 Louis Colin Improvements in anti-slip devices for the wheels of motor vehicles, in particular agricultural tractors
GB1500186A (en) * 1974-01-15 1978-02-08 Lely Nv C Van Der Vehicle anti-skid mechanisms

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB301091A (en) * 1927-11-24 1929-09-26 Marcel Fievet Means and apparatus for utilising the energy of fluids in motion or for facilitatingthe propulsion of vessels
GB379114A (en) * 1931-09-17 1932-08-25 Gustav Poehl Improvements in or relating to tractor wheels
GB728673A (en) * 1951-08-14 1955-04-27 Louis Colin Improvements in and relating to gripping devices for the wheels of tractors and other vehicles
GB813418A (en) * 1956-03-01 1959-05-13 Louis Colin Improvements in anti-slip devices for the wheels of motor vehicles, in particular agricultural tractors
GB1500186A (en) * 1974-01-15 1978-02-08 Lely Nv C Van Der Vehicle anti-skid mechanisms

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002024417A3 (en) * 2000-09-22 2002-07-11 Draper Lab Charles S A transformable vehicle
US6502657B2 (en) 2000-09-22 2003-01-07 The Charles Stark Draper Laboratory, Inc. Transformable vehicle
WO2002024417A2 (en) * 2000-09-22 2002-03-28 The Charles Stark Draper Laboratory, Inc. A transformable vehicle
US6860346B2 (en) * 2002-04-19 2005-03-01 Regents Of The University Of Minnesota Adjustable diameter wheel assembly, and methods and vehicles using same
US7559385B1 (en) 2004-03-10 2009-07-14 Regents Of The University Of Minnesota Ruggedized robotic vehicles
US7794300B2 (en) 2004-10-26 2010-09-14 Mattel, Inc. Transformable toy vehicle
EP1755905A2 (en) * 2004-10-26 2007-02-28 Mattel, Inc. Transformable toy vehicle
EP1755905A4 (en) * 2004-10-26 2008-03-19 Mattel Inc Transformable toy vehicle
US8197298B2 (en) 2006-05-04 2012-06-12 Mattel, Inc. Transformable toy vehicle
EP2012895A2 (en) * 2006-05-04 2009-01-14 Mattel, Inc. Transformable toy vehicle
EP2012895A4 (en) * 2006-05-04 2010-07-28 Mattel Inc Transformable toy vehicle
US8260459B2 (en) 2008-05-08 2012-09-04 Regents Of The University Of Minnesota Robotic vehicle system
CN101844483A (en) * 2010-05-17 2010-09-29 北京航空航天大学 Variable-diameter wheel leg combined wheel structure
CN102328704A (en) * 2011-07-27 2012-01-25 中国科学院深圳先进技术研究院 Extendable wheeled mobile robot
CN102328704B (en) * 2011-07-27 2013-04-10 中国科学院深圳先进技术研究院 Extendable wheeled mobile robot
CN103192660A (en) * 2013-04-07 2013-07-10 杨重明 Openable car wheel and amphibious car provided with same
CN103192660B (en) * 2013-04-07 2015-04-01 杨重明 Openable car wheel and amphibious car provided with same
CN104085458B (en) * 2014-07-03 2016-02-10 电子科技大学 The wheeled quadruped robot of a kind of foot
CN104085458A (en) * 2014-07-03 2014-10-08 电子科技大学 Leg-wheel type quadruped robot
CN104443093A (en) * 2014-11-19 2015-03-25 兰州理工大学 Unmanned ladder climbing robot
CN106347048A (en) * 2016-11-03 2017-01-25 浙江水利水电学院 Diameter-variable movable platform of amphibious wheel
CN106347048B (en) * 2016-11-03 2018-12-07 浙江水利水电学院 A kind of amphibious wheel variable-diameter mobile platform
CN107963140A (en) * 2017-11-17 2018-04-27 大连理工大学 Intelligent tracing climbs building load-carrying cleaning device
WO2022036546A1 (en) 2020-08-18 2022-02-24 Nikko Toys Limited Expandable wheel
EP4114672A4 (en) * 2020-08-18 2024-04-03 Nikko Toys Limited Expandable wheel

Also Published As

Publication number Publication date
GB8618660D0 (en) 1986-09-10

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)