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WO2007019970A2 - Chariot de transport - Google Patents

Chariot de transport Download PDF

Info

Publication number
WO2007019970A2
WO2007019970A2 PCT/EP2006/007723 EP2006007723W WO2007019970A2 WO 2007019970 A2 WO2007019970 A2 WO 2007019970A2 EP 2006007723 W EP2006007723 W EP 2006007723W WO 2007019970 A2 WO2007019970 A2 WO 2007019970A2
Authority
WO
WIPO (PCT)
Prior art keywords
roller
braking
dolly
transport trolley
braking device
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.)
Ceased
Application number
PCT/EP2006/007723
Other languages
German (de)
English (en)
Spanish (es)
Other versions
WO2007019970A3 (fr
Inventor
Rudolf Wanzl
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.)
Wanzl GmbH and Co Holding KG
Original Assignee
Wanzl Metallwarenfabrik GmbH
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 Wanzl Metallwarenfabrik GmbH filed Critical Wanzl Metallwarenfabrik GmbH
Priority to EP06776599A priority Critical patent/EP1915284A2/fr
Publication of WO2007019970A2 publication Critical patent/WO2007019970A2/fr
Publication of WO2007019970A3 publication Critical patent/WO2007019970A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0036—Castors in general; Anti-clogging castors characterised by type of wheels
    • B60B33/0039—Single wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0057—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being offset from swivel axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0068—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0073—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being symmetrical to wheel or wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
    • B60B33/0086—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism acting on rim or side portion of tyre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
    • B60B33/0092—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism actuated remotely, e.g. by cable or electrically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/04—Braking mechanisms; Locking devices against movement
    • B62B5/0404—Braking mechanisms; Locking devices against movement automatic
    • B62B5/0423—Braking mechanisms; Locking devices against movement automatic braking or blocking when leaving a particular area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/04—Braking mechanisms; Locking devices against movement
    • B62B5/049—Braking mechanisms; Locking devices against movement locking against movement by contacting the floor or a wall

Definitions

  • the invention relates to a trolley, in particular a shopping trolley, with the features in the preamble of the main claim.
  • Such a trolley is known from EP 1 101 685 Al. It consists of a rack with a cart or the like and with several swivel casters and a security device to protect against theft and unauthorized use of the trolley.
  • the safety device has a braking device which is actuated by magnets in the ground.
  • the braking device has a braking element in the form of a pivotable brake shoe, which is brought into contact with the ground when the brake is released and is intended to lift the roller from the ground.
  • the trolley is then supported on the swung-out brake shoe, which develops a braking force and frictional force counteracting the driving movement.
  • the delivery of the braking element takes place under gravity, possibly a jogging supported supportive.
  • the shaking motion is triggered by thresholds in the ground near the magnetic barrier.
  • the previously known braking device can be problematic in terms of operational and functional safety, because it can lead to false triggering of other magnetic parts.
  • the inertia actuated braking element is sensitive to environmental influences, such as weather, temperature or the like. And can easily get stuck. Also, the release of the brake element and the braking device is associated with considerable effort.
  • EP 0 975 505 B1 shows another
  • the brake element is a curved brake mantle, which is rotatably mounted concentrically to the roller axis and pushes in fulfillment of its braking function with a pivoting movement under the roller and this lifts off the ground.
  • an external signal transmitter in the form of a perimeter antenna is present, which communicates wirelessly with a signal receiver or so-called.
  • Resonator with which the braking device can be activated or deactivated.
  • An electromagnetic or motor drive acts on a mechanical pawl or cam lock, which holds and locks the bent brake mantle in the rest position and in the extended operating position.
  • the mantle movements are caused by a prestressed spring.
  • the bent brake mantle To release the brake device, the bent brake mantle must be swiveled back by an operator by hand and against the spring force back into the starting position. In this case, at most, be solved and opened by a movable transmitter of the electromagnetic or motor drive to release the pawl or cam lock to allow such a manual swinging back of the shell.
  • Anti-theft device is the braking device housed inside an impeller and acts on the role of movement from the inside.
  • the driven feed device for the brake element has the advantage of high operational and functional safety. It develops sufficiently large feed forces to bring the brake element into safe contact with the ground and also the required ones
  • the braking device can be wirelessly operated and also released again by means of a control of the delivery device and a signal receiver in any suitable manner. This is possible in particular by radio signal, which offers greater reliability than the previously known magnetic switch. Via the signal receiver and one or more external signal transmitters, bidirectional communication with feedback messages, status indications, etc. can also be established.
  • the advancing device actively moves the brake element into the working and engagement position and, when releasing it, also remotely retrieves it with an active movement into the rest position. A manual grip is required neither when pressing, nor when releasing the braking device.
  • Direction rotatable Exenterrolle has the advantage that the braking function is independent of the direction of travel of the trolley and can not be circumvented. It is immaterial for the braking function, whether the trolley is pushed forward or pulled backwards and which pivot position occupies the possibly pivotally mounted roller. This improves - A -
  • the anti-theft device significantly the availability and reliability of the anti-theft device.
  • a brake function occurs immediately on the brake actuation signal and that the transport carriage can not be pushed, as in the prior art, until a greater distance outside the secured area.
  • the eccentric roller ensures by its off-center storage for the desired lifting of one or more rollers of the trolley. The trolley can then no longer move reasonably through the braking resistor. In particular, a loaded shopping cart can not be maneuvered and then pushed outside the secure business area.
  • the braking device can optionally on the frame of the
  • Transport cart be attached as a separate device. It can also be assigned directly to a roller and attached adjacent thereto. In this case, several rollers can be equipped with a braking device.
  • the safety and braking device can be inexpensively retrofitted to existing trolley. It can also be installed in the original equipment at a suitable location.
  • FIG. 1 shows a schematic plan view of a business area, in particular a supermarket, with a trolley and a security device against theft etc,
  • FIG. 2-4 a side view of a transport vehicle with a safety and braking device in various operating positions
  • FIG. 5-7 enlarged views of the braking device in the various operating divisions
  • Figure 8 and 9 a variant of the braking device in a perspective view and side view and
  • Figures 10 and 11 a further variant of the braking device in side view and folded end view.
  • Figure 1 shows in a schematic plan view a business area (39) in which e.g. around a supermarket or other retail store with one or more commercial buildings and a surrounding
  • the parking lot can also be integrated into the building.
  • the business area (39) may be designed differently and be, for example, an airport, a train station or the like.
  • a plurality of trolleys (1) are present, which are housed in the area or parking lot (40) or in the building in one or more peripheral storage areas (42).
  • the trolley (1) can be designed in any suitable manner.
  • Such a shopping cart is shown schematically in the below-described Figure 2.
  • the terrain (40) has one or more entrances or
  • a security device (2) in particular an anti-theft device, be present, which at least one signal generator (32) in the surveillance area, eg at the entrances (41 ' ) and possibly at the outer borders of the terrain (40).
  • the signal transmitter (32) can be designed as a circulating and sunk in the bottom (4) mounted antenna cable.
  • a control signal is issued to a subsequently explained braking device (3) of the trolley (1), which actuates the braking device (3) and the further travel movement of the trolley (1) by a rubbing Braking force difficult or prevented.
  • any other types and arrangements of signalers (32) are possible.
  • Figure 2 shows schematically the structure of a shopping cart (1) in side view. It consists of a frame (5) with several, e.g. four, rollers (8, 9) and a goods receptacle (6), e.g. a shopping cart.
  • the shopping cart (1) may further include a shifter (38), e.g. one
  • the shopping cart (1) may further with a deposit lock (not shown) or the like. be equipped.
  • the evenly distributed rollers (8,9) are connected to the frame (5) by a pivot bearing (36) with a vertical or upright pivot axis (37).
  • the rollers (8, 9) are each freely rotatably supported in a roller holder (34), e.g. has a forked shape and carries a transverse roller axis (35).
  • the roller axle (35) is rigidly secured to the roller holder (34), wherein the roller (8,9) with a suitable pivot bearing on the transverse or horizontal roller shaft (35) is freely rotatably mounted.
  • the trolley (1) may alternatively have a different design and e.g. be designed as a platform car, luggage carts for luggage or the like. It can also have a different number of rollers, e.g. three rollers (8,9), exhibit.
  • the braking device (3) described in detail below can be arranged several times on the transport carriage (1).
  • the braking device (3) on the frame (5) of the trolley (1) is arranged. It can e.g. be attached to a front cross member (7) with its housing (14). It is in this variant, e.g. centered between the left and right front castors (8). In the variant of Figures 10 and 11, the braking device (3) is assigned directly to one of the roller (8) and stored in the vicinity thereof.
  • the braking device (3) has in each case a feed device (10) with a controllable drive (16) for the brake element (11), which can be moved back and forth between, for example, a raised non-operating rest position and a lowered working position in which it is in contact with the ground or floor (4) in Touch contact and can be brought into frictional and braking engagement.
  • a feed device (10) with a controllable drive (16) for the brake element (11) which can be moved back and forth between, for example, a raised non-operating rest position and a lowered working position in which it is in contact with the ground or floor (4) in Touch contact and can be brought into frictional and braking engagement.
  • at least one impeller (8,9) is lifted from the substrate (4) in the manner shown in Figure 2 to 4, so that the weight of the optionally loaded trolley (1) is at least partially supported on the brake element (11).
  • the delivery device (10) has a controller (30) with a signal receiver (31), the wireless with at least one external signal generator (32,33) for
  • Actuation and release of the braking device (3) communicates.
  • the communication can take place in only one direction as pure reception or bidirectional with reception and transmission of signals.
  • the signal receiver (31) can be a combined transmitter / receiver.
  • the controller (30) and the signal receiver (31) are shown for the sake of clarity only in Figures 2 and 5 schematically.
  • the signal receiver (31) is preferably a transponder, which can be designed as a passive or active component.
  • the signal receiver (31) upon receipt of a control signal from one of the external signal transmitters (32, 33), issues a triggering signal to the controller (30) for actuating the braking device (3).
  • a triggering signal to the controller (30) for actuating the braking device (3).
  • the braking device (3) can be released again and the normal function of the trolley (1) can be produced.
  • the braking device (3) or the feed device (10) also have a suitable power supply (not shown) for the drive (16) and possibly the signal receiver (31).
  • the power supply can be configured in any suitable manner, eg as a replaceable battery or as a rechargeable battery.
  • the brake element (11) is formed in the various embodiments each as a freely rotatable eccentric roller (21) which can be rotated in two directions and which is provided with a Drehbegrenzer (23).
  • the eccentric roller (21) is mounted on its eccentric roller bearing (22) on a pivot arm (12) of the feed device (10).
  • the axis of rotation of the roller bearing (22) is laterally spaced from the roller axis (35).
  • the pivot arm (12) is in turn arranged pivotably about a relative to the trolley (1) relatively fixed pivot axis (15) or a pivot bearing.
  • the pivoting movement can be limited by means of a stop (13), which is indicated schematically, for example, in FIG.
  • the housing-fixed stop (13) may be present several times and also limit the pivoting movement in the opposite direction. Such stops (13) can be used to relieve the drive (16).
  • the drive (16) can be designed in any suitable manner. He has a motor (17) and possibly a transmission (18).
  • the drive (16) actuates the pivot arm (12) and is relatively stationary relative to the trolley (1), for example in a housing (14), supported.
  • the motor (17) is preferably an electric motor, in particular a low-voltage operated DC motor. It can have a primary gear for reducing the engine speed.
  • the transmission (18) can also provide power transmission between the motor (17) and the swivel arm (12). It can be designed for this purpose a self-locking gear, in particular as a worm gear. As shown in FIGS.
  • the motor (17) is connected to a worm shaft (19), possibly with the interposition of a reduction gear, which in turn is connected to a worm wheel (20) arranged concentrically to the pivot axis (15) on the pivot arm (12). combs.
  • a worm shaft (19) possibly with the interposition of a reduction gear, which in turn is connected to a worm wheel (20) arranged concentrically to the pivot axis (15) on the pivot arm (12). combs.
  • the rotation limiter (23) has e.g. a concentric to
  • Axis of the roller bearing (22) extending guide the e.g. is formed as a recessed guide groove on the body of the friction roller (21).
  • the guide (24) cooperates with a stop (25), e.g. a housing-fixed pin immersed in the guide groove.
  • the stop (25) is preferably arranged on the housing (14) or on the swivel arm (12) such that it is arranged substantially vertically above the axis of the roller bearing (22) in the pivoted-down operating position of the swivel arm (12).
  • the Drehbegrenzer (23) further has an output divider (26) for the eccentric roller (21), which brings them in the unloaded state in a defined output rotational position. This is, for example, the center position shown in the drawings, in which the stop (25) is located in the middle of the guide groove (24).
  • the eccentric roller (21) also assumes such a rotational position that, with its roller bearing (22), it has the next adjacent peripheral region in working position of the swivel arm (12) to the substrate (4). From this position, in each case the maximum eccentric stroke for lifting the roller (8) can be utilized in a roller rotation in both directions of rotation (28).
  • FIGS. 8 and 9 show a complete braking device (3) with a housing (14) surrounding the infeed device (10) and the brake element (11) on one or more sides.
  • a housing (14) surrounding the infeed device (10) and the brake element (11) on one or more sides.
  • the motor (17) with its gear part and the pivot bearing
  • the housing (14) can be firmly connected in the aforementioned manner with the transverse strut (7) or another part of the frame (5).
  • Figures 8 and 9 also show a particularly space-saving design variant of the feed device (10).
  • the drive (16) with its gear (18) is inclined inclined downwards and extends substantially along and close to the connecting line between the pivot axis (15) and the axis of the roller bearing (22).
  • the drive (16) is housed protected inside the housing.
  • Figures 2 to 7 show another construction variant with a above the pivot bearing (15) horizontally arranged drive (16).
  • the braking device (3) is directly associated with a roller (8), the roller holder (34) correspondingly laterally issued or angled and creates the space for the roll-close arrangement of the delivery device (10).
  • the horizontal roller axle (35) is offset laterally relative to the vertical pivot axle (37), so that when the transport cart (1) is pushed in the direction of travel (27), they automatically move the rollers (8) to the caster position shown.
  • the swivel arm (12) is aligned obliquely in the direction of travel (27) in the rest and working position, so that in the braking position the eccentric roller (21) is located in the direction of travel (27) in front of the roller axis (35).
  • Such an orientation of the pivot arm (12) in the direction of travel (27) is also given in the other embodiments.
  • the pivot arm (12) is provided in the manner described above with the eccentric roller (21) and the roller bearing (22) and the rotation limiter (23).
  • the pivoting arm (12) is arranged laterally next to the impeller (8) and with its pivot bearing (15) e.g. coaxially or alternatively offset from the roller axis (35).
  • the pivot bearing (15) is supported on the preferably frame-fixed roller axle (35) or elsewhere of the roller holder (34).
  • the eccentric roller (21) is arranged with its axis of rotation (22) by the pivot arm (12) with distance and functionally independent of the roller axis (35).
  • the drive (16) is in this case as also on the roller axle (35) mounted motor with possibly one
  • Formed gear wherein the driven gear of the transmission with the pivot arm (12) is connected and this directly rotates and thereby raises and lowers the both sides rotatable eccentric roller (21) in the manner described above.
  • stops for limiting and supporting the Schwenkarmambaen be present in the end positions.
  • the drive (16) is relieved in the end positions by the stops (13).
  • the stops (13) can also be used for the end stop of the motor (17). You can have the function of limit switches for this purpose. Alternatively, it is possible to realize an engine shutdown via the rising in stop position motor current or in any other way. Due to the self-locking gear training engine (17) is also relieved of the forces acting during braking forces.
  • the motor (17) rotates in the opposite direction and lifts the swivel arm (12) with the brake element (11) back from the ground (4) until the other end position the Armschwenkamba is reached.
  • 35 roller axle Swing bearing swivel axis sliding device handle business area, supermarket, airport terrain, parking access, access parking area

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Handcart (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un chariot de transport (1), notamment un chariot de courses, comportant une structure (5) et plusieurs cylindres de roulement (8, 9), ainsi qu'un dispositif de sécurité (2) présentant un dispositif de freinage actionnable (3) pourvu d'un élément de freinage (11) mobile, pouvant être amené en prise avec la base (4). Le dispositif de freinage (3) comporte un dispositif de serrage (10) présentant un entraînement motorisé (16) destiné à serrer et relâcher l'élément de freinage (11). Le dispositif de serrage (10) comporte une commande (30) pourvue d'un récepteur de signaux (31) et peut communiquer de façon radio avec au moins un transmetteur de signaux externe (32, 33) pour l'actionnement et le relâchement du dispositif de freinage (3).
PCT/EP2006/007723 2005-08-12 2006-08-04 Chariot de transport Ceased WO2007019970A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06776599A EP1915284A2 (fr) 2005-08-12 2006-08-04 Chariot de transport

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200520012867 DE202005012867U1 (de) 2005-08-12 2005-08-12 Transportwagen
DE202005012867.8 2005-08-12

Publications (2)

Publication Number Publication Date
WO2007019970A2 true WO2007019970A2 (fr) 2007-02-22
WO2007019970A3 WO2007019970A3 (fr) 2007-05-03

Family

ID=37576024

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/007723 Ceased WO2007019970A2 (fr) 2005-08-12 2006-08-04 Chariot de transport

Country Status (3)

Country Link
EP (1) EP1915284A2 (fr)
DE (1) DE202005012867U1 (fr)
WO (1) WO2007019970A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160118334A (ko) * 2014-02-06 2016-10-11 휠.미 아에스 롤링 디바이스, 롤링 디바이스를 포함하는 가구 및 롤링 디바이스의 용도

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007027836A1 (de) * 2007-06-13 2008-12-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Diebstahlschutzsystem für manuell bedienbare Transportwägen
GB0722156D0 (en) * 2007-11-12 2007-12-19 Gray Matter Alpha Ltd Braking arrangements and methods

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759738A (en) * 1954-05-20 1956-08-21 Reiter William Cabinet type beach wagon with wheel supporting trough
GB9104555D0 (en) * 1991-03-05 1991-04-17 Gray Andrew P P Improvements in and relating to braking devices
US5598144A (en) * 1994-12-30 1997-01-28 Actodyne General, Inc. Anti-theft vehicle system
GB9607138D0 (en) * 1996-04-04 1996-06-12 Gray Andrew P P Improvements in and relating to braking devices
US6125972A (en) * 1997-04-17 2000-10-03 Carttronics Llc Security apparatus and method for shopping carts and the like

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160118334A (ko) * 2014-02-06 2016-10-11 휠.미 아에스 롤링 디바이스, 롤링 디바이스를 포함하는 가구 및 롤링 디바이스의 용도
KR102296147B1 (ko) * 2014-02-06 2021-08-31 휠.미 아에스 롤링 장치, 롤링 장치를 포함하는 가구 및 롤링 장치의 용도

Also Published As

Publication number Publication date
EP1915284A2 (fr) 2008-04-30
WO2007019970A3 (fr) 2007-05-03
DE202005012867U1 (de) 2006-12-21

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