• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A cart includes a rotor (9, 7) which cooperates with a stator (7, 9) arranged in the ground, such that they conjointly constitute a dynamoelectric machine. The rotor (9, 7) has an essentially flat lower surface arranged on the cart near the ground surface. The cart includes a control device (5) that controls the dynamoelectric machine and it may include an accumulator (6). The dynamoelectric machine is controllable such that is generates electric power, which may be used for powering electronic equipment in the cart. Such a cart where the dynamoelectric machine is controllable such that it counteracts movements between the rotor and the stator is also described. The cart may thus be locked in place without need for any further locking device. The magnetic locking function may also be activated to prevent thefts.
    公开号:SE0900524A1
    申请号:SE0900524
    申请日:2009-04-20
    公开日:2010-10-21
    发明作者:Thomas Sanvik
    申请人:Oestergoetlands Fastighetsservice El & Larm I Norrkoeping Ab；
    IPC主号:
    专利说明:

    can be locked without any additional, typically mechanical, locking device. Such separate locking devices are found, for example, in the sheds where department store carts are stored when not in use and they can be unlocked with a coin. The magnetic locking function can advantageously be controlled to function in a corresponding manner without any additional mechanical lock. The magnetic lock friction can also be activated to prevent theft.
    Brief description of the figures Fig. 1 shows a first embodiment of the carriage according to the invention. Fig. 2 shows a second embodiment of the carriage according to the invention. Fig. 3 shows magnetic tracks for a carriage according to the invention. Description of preferred embodiments Figs. 1 shows a first form of drying of the trolley according to the invention, here illustrated as a van 1. A set of coils 7 is arranged on the underside of the trolley which runs immediately above the floor surface over which the trolley is dried. Immediately below the floor surface there is arranged a series of magnets 9 with the magnetic field directed upwards or downwards. Every second magnet in the series has the magnetic field directed upwards and every other time the magnetic field has directed downwards, so that when the carriage is driven, an AC voltage is generated in each coil.
    The induced AC voltage can generate a current that can be used to charge an accumulator 6 which is arranged under the carriage and is located on top of the players. The voltage generated by the coils is controlled by an electrical control device 5 in the desired manner. The control device can draw a selected current from the coils and use this to charge the accumulator and / or to drive other electrical devices on the carriage. If the coils generate no voltage, the control device can draw current from the accumulator to drive the other electrical devices. If you want to facilitate the propulsion of the trolley, the control device can disconnect the players electrically so that the resistance to the propulsion is minimized.
    If the control device receives information that the trolley has left the permitted area or about alarms that the trolley or trolley contents have been stolen, the control device can conversely draw current from the accumulator to the coils so that they generate a magnetic field and lock the trolley to the 2 magnets 9 in the floor. In order for this to always be possible, the accumulator must contain at least a certain minimum charge and the control device can therefore be designed to always charge the accumulator when the coils generate voltage, at least until this minimum charge level is reached.
    The trolley is further provided with a display 2. The display can be used to present advertising information to the customer and it can be equipped with in-body means to keep track of goods placed in the trolley and the cost thereof. The display can also be used by maintenance personnel to read information about the properties of the electromagnetic part or to control it. If a significant amount of energy accumulates, this can be drained via a charging socket 4 and the customer thus generates electrical power when the customer presents the trolley that can be used locally in the store or even fed out on the mains. Depending on how the electronics are constructed, it may need a certain minimum amount of electricity to be able to start up and this can then be supplied to the system through the charging socket 4.
    The trolley is also equipped with a charger 3 for mobile phones or the like. The charging current is intended to be generated by the customer himself and it is conceivable that the control device 5 controls the withdrawal of power from the coils depending on the customer's withdrawal of power from the charger 3. If the customer chooses to charge a mobile, the trolley will then run slightly slower and the customer does not use this function makes the trolley run a little easier.
    The front wheel 8 of the carriage is in itself a further generator where the wheel is a rotor comprising permanent magnets and in the wheel bracket there is arranged a stator part which can deliver additional electrical power to the steering device 5. The steering device also controls the front wheel generator and the extracted electric power the carriage forward, at the same time as electricity is generated. By maximizing the output of electrical power, the force required to rotate the wheel and thus push the carriage forward will also be high. This can be used to prevent theft attempts and is effective even when the carriage is outside the area where magnets 9 are arranged in the floor. On the contrary, by applying DC voltage to the stator in the front wheel, the wheel can be locked with additional force. However, since the coils 7 are close to the magnets 9 in the floor over a large area, the carriage can be locked with much greater force by activating the magnetic field generated by the coils.
    The display 2 can be provided with a coin toss and be programmed to lock the trolley by means of the coils unless the correct amount has been paid as a deposit for borrowing the trolley. The carriage is provided by the coils with what in practice is a sensor system that can detect if the carriage is eftersom moved because a voltage arises in the coils when the carriage fl is moved. If this happens and the correct amount has not yet been paid, the coils can be activated and lock the trolley, which means that the coils do not have to be constantly switched on to lock the trolley. In this way, the mechanical locking means that are often used to prevent customers from borrowing a trolley without paying a coin as a deposit can be eliminated. Information that the trolley must be locked because it has been stolen or for other reasons can be sent, for example, with RF to a receiver in the display or directly built into the control device 5.
    Fig. 2 shows a second embodiment of the trolley according to the invention which differs mainly from the first embodiment in that a series of magnets 9 are arranged on the underside of the shopping trolley and immediately below the floor surface a set of coils 7 is arranged, i.e. inverted towards the first embodiment. In the same way as in the first embodiment, an AC voltage is generated in the coils when the permanent magnets move across the floor surface when the carriage is driven. The resulting voltage can be used to draw a current which is then passed on via conductors in the floor for use locally or, after a suitable voltage and frequency transformation, is supplied to the mains.
    In the same way as in the first embodiment, current can be connected to selected coils in the floor to generate a magnetic field and thus lock a selected carriage. The second embodiment also comprises a display 2, a charger 3 and a generator 8 where the rotor is constituted by one of the front wheels of the carriage. Obviously, any of the wheels or wheels of the carriage can be designed in this way. Generator S can generate electrical power and can be controlled in the same way as in the first embodiment, ie without power outlet to minimize resistance, with power outlet for use in the car's other electrical equipment or storage in the accumulator 5, with maximum power outlet to brake the car or through to supply the generator with power to lock the wheel or wheels.
    F ig. 3 shows magnetic track 9 for a trolley in a department store. The magnetic tracks consist of rows of magnets with every other magnet's north pole directed out of the floor and every other magnet's south pole directed out of the floor. The series of magnets are arranged in the direction of movement of the carriages in the longitudinal direction of the threads between the stands 10 and in the intersections between perpendicularly arranged passages there are no magnets because the carriages here can move in different directions. The power generation effect works just as well whether the trolley moves forwards or backwards in the direction of the series, but is ineffective perpendicular from there.
    The locking function also does not work if the trolley is perpendicular to the direction of extension of the series, so the series of magnets are arranged so that they act at the exit of the department store in the lower part of the clock, when trolleys are directed from or towards the exit. In the same way, the series of magnets are arranged in the sheds where the department store carts are stored when they are not in use, in such a way that they can be effective.
    The invention is intended to comprise both the two embodiments illustrated and the cooperating coils 7 and the magnets 9 together form a dynamoelectric device which can act either as a generator or, when locked, as a motor. These two parts are defined in the claims as a stator and a rotor, respectively, although the term rotor is normally used for rotating parts.
    权利要求:
    Claims (7)
    [1]
    Claim 1 A carriage comprising a rotor (9, 7) intended to co-operate with a stator (7, 9) arranged in the ground so that in co-operation they constitute a dynamoelectric machine, characterized in that where the rotor (9, 7) has a substantially flat lower surface arranged on the trolley near the ground.
    [2]
    A trolley according to claim 1, characterized in that it comprises a control device (5) which controls at least the dynamoelectric machine.
    [3]
    A trolley according to claim 1 or 2, characterized in that it comprises an accumulator (6).
    [4]
    A trolley according to any one of the preceding claims, characterized in that the dynamoelectric machine is controllable at least so that it generates electrical power.
    [5]
    A carriage according to any one of the preceding claims, characterized in that the dynamoelectric machine is steerable at least so as to counteract movement between the rotor and the stator.
    [6]
    A trolley according to any one of the preceding claims, characterized in that it comprises sockets (3, 4) for extracting electricity from the dynamoelectric machine and / or the accumulator (6).
    [7]
    A trolley according to any one of the preceding claims, characterized in that it comprises a second dynamoelectric machine (8), wherein at least one of the wheels of the trolley constitutes the rotor of the second dynamoelectric machine (8).
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    同族专利:
    公开号 | 公开日
    EP2421739A1|2012-02-29|
    WO2010123427A1|2010-10-28|
    US20120049539A1|2012-03-01|
    SE533865C2|2011-02-15|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3031038A|1959-11-16|1962-04-24|Irving Stollman|Magnetic wheel lock|
    US4577880A|1984-01-06|1986-03-25|Bianco Eric L|Theft prevention apparatus for shopping carts|
    CA2000899C|1989-10-17|1995-11-21|Martine Losego|System for motorizing a shopping cart or trolley, or the like|
    US6421600B1|1994-05-05|2002-07-16|H. R. Ross Industries, Inc.|Roadway-powered electric vehicle system having automatic guidance and demand-based dispatch features|
    EP0896758B1|1996-05-03|2006-03-29|Auckland Uniservices Limited|Inductively powered battery charger|
    DE10259620B4|2002-12-18|2004-10-14|Wincor Nixdorf International Gmbh|Power supply for shopping carts|
    US6774503B1|2003-11-07|2004-08-10|Far Great Plastics Industrial Co., Ltd.|Wheel having an accelerating electricity charging device|
    DE202005011625U1|2005-07-20|2006-11-30|Wanzl Metallwarenfabrik Gmbh|Dolly, especially shopping carts|
    US7394165B2|2005-10-22|2008-07-01|Jay Schiller|Luggage with power supply circuit|
    WO2007071215A1|2005-12-19|2007-06-28|Karl Salzmann|Induction unit|
    US7164211B1|2006-03-14|2007-01-16|Tafoya Craig A|Vehicle assisted power generator|
    US20070289793A1|2006-06-16|2007-12-20|Imad Mahawili|Energy recovery system|
    JP5201861B2|2007-03-27|2013-06-05|富士通コンポーネント株式会社|Information providing system and information providing method|
    US8030888B2|2007-08-13|2011-10-04|Pandya Ravi A|Wireless charging system for vehicles|
    US8120190B2|2008-09-29|2012-02-21|Ncr Corporation|Shopping cart with a self-charging system|AT513708A1|2012-12-14|2014-06-15|Frank Tilbürger|Shopping venture|
    CA2932840C|2012-12-14|2019-09-10|Frank Tilburger|Shopping trolley with a docking station and a coin deposit lock|
    US9736654B2|2013-03-27|2017-08-15|Udviklingsselskabet Af 2014 A/S|Method and hand luggage trolley for facilitating a flow of passengers in an airport terminal|
    US9725105B2|2014-12-26|2017-08-08|Toshiba Global Commerce Solutions Holdings Corporation|Shopping container safes and related methods for securing objects|
    US9672967B1|2016-03-23|2017-06-06|Honda Motor Co., Ltd.|Electromagnetic cart lock|
    USD844926S1|2017-02-03|2019-04-02|Unarco Industries Llc|Cart|
    US10232870B2|2017-02-03|2019-03-19|Unarco Industries Llc|Bracket and caster lift for shopping cart|
    IT201700113828A1|2017-10-10|2019-04-10|Metta Simone|TROLLEY SAFETY DEVICE AND PROCEDURE|
    US11080680B2|2018-01-31|2021-08-03|Target Brands, Inc.|Physical shopping chart-to-mobile device associations|
    US11059506B2|2018-10-04|2021-07-13|Target Brands, Inc.|Physical shopping cart having features for use in customer checkout of items placed into the shopping cart|
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    CN110775129A|2019-10-15|2020-02-11|南京和畅农业科技有限公司|Intelligent shopping cart and intelligent shopping cart management system|
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    法律状态:
    2015-12-15| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    SE0900524A|SE533865C2|2009-04-20|2009-04-20|Magnetic trailers wagon|SE0900524A| SE533865C2|2009-04-20|2009-04-20|Magnetic trailers wagon|
    PCT/SE2010/000096| WO2010123427A1|2009-04-20|2010-04-15|Cart|
    US13/264,555| US20120049539A1|2009-04-20|2010-04-15|Cart|
    EP10767374.1A| EP2421739A4|2009-04-20|2010-04-15|Cart|
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