EP2056944A1 - Driven spinning top - Google Patents
Driven spinning topInfo
- Publication number
- EP2056944A1 EP2056944A1 EP06843939A EP06843939A EP2056944A1 EP 2056944 A1 EP2056944 A1 EP 2056944A1 EP 06843939 A EP06843939 A EP 06843939A EP 06843939 A EP06843939 A EP 06843939A EP 2056944 A1 EP2056944 A1 EP 2056944A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- permanent magnet
- spinning top
- distance
- tops
- spinning
- 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- Withdrawn
Links
- 238000009987 spinning Methods 0.000 title claims abstract description 27
- 230000003993 interaction Effects 0.000 abstract description 2
- 230000004048 modification Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 230000002452 interceptive effect Effects 0.000 abstract 1
- 230000000452 restraining effect Effects 0.000 abstract 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 5
- 230000005291 magnetic effect Effects 0.000 description 5
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 101100232929 Caenorhabditis elegans pat-4 gene Proteins 0.000 description 1
- 241001575049 Sonia Species 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H33/00—Other toys
- A63H33/26—Magnetic or electric toys
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H1/00—Tops
- A63H1/18—Double tops; Multiple tops mounted in or on one another
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F3/00—Board games; Raffle games
- A63F3/00895—Accessories for board games
- A63F2003/00899—Instruments for handling a playing piece
- A63F2003/00927—Instruments for handling a playing piece magnetic
Landscapes
- Toys (AREA)
Abstract
A modified classical spinning top (1) and its horizontal driving (6) without mechanical restraining elements are disclosed. The modified classical spinning top has a small permanent magnet (2) on the rotation axis (3), at its upper part and coaxial with it. A second permanent magnet (4) with the opposite polarity to the first one, it means in an attraction configuration, is manually moved horizontally (7) above the top of the spinning top. The interaction of attraction of the two permanent magnets determines a horizontal driving (6) of the spinning top without modification of the rotation movement. The new toy is more interesting, interactive and attractive than the classical one.
Description
DRIVEN SPINNING TOP
FIELD OF INVENTION
The present invention relates to a modified classical spinning top (using permanent magnets and no mechanical restraints ) that can be horizontally driven without the modification of the rotation movement.
BACKGROUND OF THE INVENTION
It is well known that people like the classical toys : spinning tops, gyroscopes and permanent magnets.
Spinning tops are old toys . They are built from wood , metals, or plastics in different shapes , colors and dimensions. Recently some of them produce a sound or/and light. Not much has been changed since the beginning. Once it is put into rotation we just look at its movement . No possibility to change the movement, to interact with it.
Gyroscopes are well known toys and devices. They fascinate how the direction is kept constant.
Permanent magnets are used to obtain different configurations using balls , nails, ferromagnetic powder , magnetic fluids. Once the configuration is achieved nothing can happen more , no more fun.
The idea of combining the rotation movement of a gyroscope and permanent magnets has been advanced by I. Grosu in Romania Patent No. 91 857 from 28 Feb. 1987. A classical gyroscope is modified by using two permanent magnets on the rotation axis , coaxial with it. So the gyroscope has an angular momentum and a magnetic moment . A uniform external magnetic field generated by a coil determines a rotation that is the Larmor precession. This device is didactic and can show how the Larmor precession is obtained. Such a gyroscope simulates the spin of the electron with angular momentum and magnetic moment.
An interesting use of permanent magnets in spinning tops is the Levitron : US Pat 4 382 245 and US Pat 5 404 062 . The disk of the spinning top is a permanent magnet above a second permanent magnet in the repulsion configuration . The spinning top can levitate if some conditions are fulfilled . The levitation is not so easy to be obtained . Levitron is produced by : www.supermagnete.de .
Another toy - Magnetic UFO Spinning Top - has a small permanent magnet at the bottom that is in contact with a ferromagnetic planar piece. During rotation the bottom of the spinning top moves the planar piece in an interesting manner.
Using the site www.espacenet.com with the keywords toy AND top AND magnet there are selected the patents : US 2004198152,US 2003064660.GB2389321.CN1326800 that presents tops with permanent magnets. It should be emphasized that all patents refer to tops with uncontrollable dynamics.
SUMMARY OF THE INVENTION
The present invention is directed to a spinning top with a controllable horizontal motion. The dynamics of the classical spinning top can not be changed because any action on it is equivalent with a torque N that will modify the rotation motion according to the angular momentum theorem : dL/dt=N where L, N are the angular momentum and torque respectively. To move the top horizontally it is necessary to act on it with a force that passes the rotation axis (to have a torque equal with zero). This can be realized by the interaction of attraction of the two permanent magnets ; one on the axis of rotation , coaxial with it and another one above the top. Everything will be better understood following the drawings , detailed description and claims.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1. A general view of the modified spinning top.
FIG. 2. Detailed view of the permanent magnet at he upper part of the top
FIG. 3. The collision of two cylindrical shaped tops.
FIG. 4. The suspended top into rotation.
FIG. 5. The collision between two tops :one with a hexagonal shape and another one with a cylindrical shape. FIG. 6. The collision between a top with a hexagonal shape and a ball.
DETAILED DESCRIPTION OF THE INVENTION
As it was mentioned above all combinations top and permanent magnets did not achieve a controllable dynamics for tops. The dynamics of a modified gyroscope (I.Grosu, Romania Patent No. 91 857) is controllable by using an external magnetic field. This idea , in a modified version , is used here . The key idea is to modify a classical spinning top by using a permanent magnet on the rotation axis , at its upper part , coaxial with it . An external permanent magnet , manually moved above the top , attracts the first magnet moving the top horizontally. The rotation motion is not changed because the torque of the attraction force between two permanent magnets is zero. This happens because the direction of this force passes the rotation axis. So the horizontal translation motion of the top can be controlled by the motion of the external permanent magnet. The top with a controllable dynamics has much more interest and fun and educational and scientific achievements.
Following Fig. 1 and Fig. 2 a classical spinning top 1 is modified by using a small permanent magnet 2 on the rotation axis 3 , coaxial with it , at its upper part. A second permanent magnet 4 is above the top into rotation 5. The top moves horizontally 6
following the horizontal motion 7 of the permanent magnet 4. The motion 6 is obtained only if the motion 7 is slow. At rapid movement 7 the top is not able to follow it.
The top with controllable dynamics can be used to realize several games. I propose here 3 variants.
First one refers to the dynamics of the top. It can be experimented how quick should be the motion 7 in order to obtain a movement 6. A too quick move 7 fails to obtain a movement 6. Two tops can collide 8 when they are close enough(Fig.3). It is interesting that after the collision they can collide again because of the Bernoulli law. Also if the permanent magnet 4 is close enough then the top jumps in contact with it. The rotation continues. (Fig. 4). If the magnet 4 is vertically shaken the top falls on the table on the table and continues to rotate and it can be attracted again to magnet 4. Here can be observed how the vertical direction is conserved. This can not be done with the classical spinning top.
Secondly a collision can be obtained between a hexagonal shaped top 9 and a cylindrical shaped one l(Fig. 5). Here the collision is more violent because of the shape of the hexagonal shaped top 9.
Thirdly a competition game can be realized by using a hexagonal shaped top 9 and a ball lO.The ball 10 moves horizontally. Two players each having a hexagonal shaped top 9 hit the ball(Fig. 6) in order to move it in the others gate. I call this game TOPBALL in analogy with football, handball, basketball.
Others games can be imagined using the driven spinning top with a controllable dynamics.
REFERENCES l.I.Grosu/'Didactic device for obtaining Larmor precession" (in Romanian) ,Romania Patent Nr. 91857/28 Feb. 1987, Application nr.118 306/08 April 1985 2.Sonia and Roger Kaysel (1991) ,"Kreisel " , Schweizer Kindermuseum Baden
,Switzerland.
3.R.M.Harrigan (1983) ,"Levitation device ", Patent US 4 382 245 ,May 3,1983 4.E.W.Hones and W.G.Hones ," Magnetic Levitation Device and Method"
Patent US 5 404 062
5.H.Goldstein /'Classical Mechanics " Addison- Wesley ,1965,p.3 6.P.A.Tipler (1991),"Physics for Engineers and Scientists ",3rd Edition, Vol.2, p.798-800,Worths Publishers. 7.F.W.Sears , M.W.Zemansky and H.D. Young (1987) ."University Physics"
7th Edition,p.698-700, 1987 8.R.Holler,"Kreisel" , H. Hugedubel Verlag ,1989
Claims
I claim:
1. A modified classical spinning top comprising:
-a small permanent magnet on the rotation axis , at its upper part , coaxial with it -a second permanent magnet movable by hand above the spinning top with opposite polarity ,it means in the attraction configuration 2.The device of claim 1 has a controllable horizontal dynamics by moving said second permanent magnet and this device is called driven spinning top. The tops can have a cylindrical , hexagonal or square shape . 3.By using the said driven spinning top with the said controllable horizontal dynamics several games can be imagined and proposed. 4.Three said games are suggested : a game by driving the top : who drives the top a certain distance in a shorter time. Some skills are necessary to be achieved concerning the optimum distance between the said driven spinning top and the said second permanent magnet. If the distance is too small then the top jumps to the said second permanent magnet. It continues to rotate when suspended. By shaking vertically the said second permanent magnet the top falls on the table and continues to rotate. If the distance between said permanent magnets is two large the movement of the said driven spinning top is too slow. Two cylindrical shaped tops can collide several times.
- one or two players with a said hexagonal shaped top and a said cylindrical shaped top can play the collision between them.
- two players each of them with a said hexagonal shaped top can hit a ball to move it in the others gate. In analogy with football , handball , basketball I call this game TOPBALL.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ROA200600504A RO122019B1 (en) | 2006-06-30 | 2006-06-30 | Toy with controlled dynamics |
PCT/RO2006/000023 WO2008002167A1 (en) | 2006-06-30 | 2006-12-13 | Driven spinning top |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2056944A1 true EP2056944A1 (en) | 2009-05-13 |
Family
ID=38171228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06843939A Withdrawn EP2056944A1 (en) | 2006-06-30 | 2006-12-13 | Driven spinning top |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090197503A1 (en) |
EP (1) | EP2056944A1 (en) |
CN (1) | CN101479013B (en) |
RO (1) | RO122019B1 (en) |
WO (1) | WO2008002167A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8210895B2 (en) * | 2008-12-22 | 2012-07-03 | Mega Brands International | Magnetic top system and method |
WO2012162706A1 (en) | 2011-05-20 | 2012-11-29 | Tosy Robotics Joint Stock Company | Electric top |
US8986066B2 (en) | 2012-06-01 | 2015-03-24 | Mattel, Inc. | Rotating top assembly toy play set and method for launching a rotating top |
US9566528B2 (en) | 2012-10-02 | 2017-02-14 | Mattel, Inc. | Rotating top launcher |
USD910775S1 (en) * | 2019-11-20 | 2021-02-16 | Make Great Sales Limited | Spinning top |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4043558A (en) * | 1976-02-23 | 1977-08-23 | Scott Clifford Star | Magnetic maze game |
US4200289A (en) * | 1978-05-30 | 1980-04-29 | Jemar, Inc. | Magnetic game apparatus |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2702191A (en) * | 1955-02-15 | Lemelson | ||
US1326800A (en) * | 1919-12-30 | Device to assist cows in calving | ||
US91857A (en) * | 1869-06-29 | Oscar f | ||
US1015000A (en) * | 1911-03-27 | 1912-01-16 | Charles Cahn | Collar or cuff package. |
US1411974A (en) * | 1920-02-27 | 1922-04-04 | William K Mann | Spinning top and support therefor |
US2389321A (en) * | 1943-02-19 | 1945-11-20 | Stone J & Co Ltd | Electric regulator |
GB1015000A (en) * | 1963-12-23 | 1965-12-31 | Alfred Eleonhard Paulsen | Toy |
US3906660A (en) * | 1974-06-19 | 1975-09-23 | Raymond Lee Organization Inc | Top toy |
US4200283A (en) * | 1978-01-23 | 1980-04-29 | Andrews Melvin R | Magnetic spinning top game |
US4382245A (en) * | 1978-04-25 | 1983-05-03 | Harrigan Roy Major | Levitation device |
JPS5936388U (en) * | 1982-08-28 | 1984-03-07 | 株式会社タカラ | magnetic spinning top toy |
US4753623A (en) * | 1986-12-16 | 1988-06-28 | Krut William A | Magnetic spinner device |
CN87206240U (en) * | 1987-04-09 | 1988-01-20 | 王玉成 | Electric top |
US4901456A (en) * | 1988-11-21 | 1990-02-20 | Peter Cotutsca | Magnetically supported display |
US5119057A (en) * | 1989-10-19 | 1992-06-02 | New York University | Optimum design of two-dimensional permanent magnets |
US5404062A (en) * | 1994-02-17 | 1995-04-04 | Creative Gifts, Inc. | Magnetic levitation device and method |
DE19729398A1 (en) * | 1997-07-09 | 1999-01-14 | Dokoupil Hans Dipl Ing Univ | Device that achieves magnetic levitation with mechanical stabilization |
CN1326800A (en) * | 2000-06-06 | 2001-12-19 | 俞平 | Magnetic suspension wipping top toy |
JP3612508B2 (en) * | 2001-09-28 | 2005-01-19 | 株式会社タカラ | Top toy system |
JP2003190646A (en) * | 2001-12-26 | 2003-07-08 | Mineo Yorizumi | Non-falling top and stand for top |
WO2004043561A1 (en) * | 2002-11-13 | 2004-05-27 | Perez Enriquez Rafael | Spinning top comprising multiple, simultaneously-operated tops |
CN2633382Y (en) * | 2003-06-22 | 2004-08-18 | 王葆生 | Tumbler top |
-
2006
- 2006-06-30 RO ROA200600504A patent/RO122019B1/en unknown
- 2006-12-13 US US12/305,192 patent/US20090197503A1/en not_active Abandoned
- 2006-12-13 WO PCT/RO2006/000023 patent/WO2008002167A1/en active Application Filing
- 2006-12-13 EP EP06843939A patent/EP2056944A1/en not_active Withdrawn
- 2006-12-13 CN CN2006800551826A patent/CN101479013B/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4043558A (en) * | 1976-02-23 | 1977-08-23 | Scott Clifford Star | Magnetic maze game |
US4200289A (en) * | 1978-05-30 | 1980-04-29 | Jemar, Inc. | Magnetic game apparatus |
Also Published As
Publication number | Publication date |
---|---|
CN101479013A (en) | 2009-07-08 |
WO2008002167A1 (en) | 2008-01-03 |
RO122019B1 (en) | 2008-11-28 |
CN101479013B (en) | 2012-05-23 |
US20090197503A1 (en) | 2009-08-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20081209 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20121129 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20130410 |