Patent Description:
In Computer, Communication and Consumer (3C) industries, a product needs to be assembled in a dustless environment. For example, as far as screen assembly is concerned, in order to achieve a higher dustless degree, a screen panel needs to be carried and conveyed by a supporting member in a clean room. Generally, the supporting member is driven by a rack-pinion mechanism through mechanical engagement or driven by a belt, a first roller, and a link plate through friction. In this case, particles generated by mechanical engagement or friction cannot be ignored.

In order to reduce the particles, Patent <CIT> discloses a conveying apparatus having a carrier fixed with a magnetic rack and a group of magnetic gears rotatable about an axis. Where the multiple of magnetic gears are driven to rotate by their driving shaft, they drive the magnetic rack together with the carrier to move in a direction of the axis, by means of direct magnetic coupling with the magnetic rack or indirect coupling via another magnetic gear group.

For example, a case is considered in which the above conveying apparatuses are applied to a production process line each taking different transfer direction in a transverse arrangement. Two of the conveying apparatuses are placed adjacent to each other with a transverse section as a portion of one of the two conveying apparatuses. Therefore, when using the conveying apparatuses as a system for transferring the carrier, it is a matter of course that the above magnetic gear group is provided for each conveying apparatus so as to move the carrier along the first conveying apparatus, from the first convey apparatus to the second, and then along the second conveying apparatus, by rotating each driving shaft.

The conventional conveying apparatus having the above structure has the following problems.

Since a displacement is present of the magnetic gear group of one of the transfer apparatuses at the transverse section, to smoothly move the carrier, it is necessary to match the magnetic gear group to the transverse section of the conveying apparatus. Unless properly arranging the matching, the carrier cannot be smoothly moved. Moreover, if magnetic coupling occurs effected by the magnet gear groups of the two conveying apparatuses, a purposed thrust of the carrier is not produced when it enters into or leaves the transverse section. <CIT> discloses a conveying device based on magnetic levitation for conveying a carrier table from a carrier passage to another carrier passage, which are arranged transversely to each other and intersect each other. <CIT> discloses a transfer system according to the preamble of claim <NUM>.

Because the first transfer system and the second transfer system according to conventional solutions would have been partitioned by their respective profile, the second magnetic engaging part of the first transfer system would also be separated from the transverse section. Therefore, a displacement of the second magnetic engaging part would be produced at the transverse section. Because such displacement exists, matching the second magnetic engaging part to the transverse section becomes an issue when moving the first carrier from the first transfer system to the second transfer system. According to the present invention, it provides a magnetic conveying system for moving object between a first transfer system and a second transfer system transversely arranged, including: a first carrier for transferring the object, having a first magnetic engaging part; and a first drive member, having a second magnetic engaging part interacting with the first magnetic engaging part of the first carrier to move the first carrier in a first transfer direction of the first transfer system to transverse section of the first transfer system and the second transfer system; wherein: at least a portion of the second magnetic engaging part is arranged in a space between the transverse section and the first magnetic engaging part of the first carrier crossing an edge of the transverse section. At least a portion of the second magnetic engaging part is arranged in a space between the transverse section and the first magnetic engaging part of the first carrier when the first carrier crosses an edge of the transverse section. This is helpful for keeping the magnetic coupling above a predetermined level when the first carrier enters into the transverse section from the first transfer system or moves away from the transverse section towards the first transfer system. Otherwise, the first carrier would not have sufficient drive force to complete the transfer between the transverse section and the first transfer system.

Preferably, the transverse section is a part of the second transfer system adjacent to the first transfer system.

According to the invention the conveying system further includes a second carrier for transferring the first carrier, having a third magnetic engaging part; and a second drive member, having a fourth magnetic engaging part interacting with the third magnetic engaging part of the second carrier to move the second carrier in a second transfer direction of the second transfer system towards or away from the transverse section.

Preferably, the first carrier is moved and secured to the second carrier at the transverse section.

Preferably, the first drive member has a first divided section and a second divided section; the second magnetic engaging part of the first divided section is arranged on the first transfer system to move the first carrier along a path of the first transfer system; and the second divided section is arranged on the second carrier.

Preferably, the conveying system further includes a clutch, being configured to secure the first divided section and the section divided section.

Preferably, the second carrier has a positioning member with a fifth magnetic engaging part to its end, being configured to protrude from the second carrier interacting with the first magnetic engaging part of the first carrier to hold the first carrier.

Preferably, the second carrier has a positioning member with a fifth magnetic engaging part to its end, being configured to protrude from the second carrier indirectly interacting with the first magnetic engaging part of the first carrier via the second magnetic engaging part of the second divided section to hold the first carrier.

Preferably, the first magnetic engaging part has a magnetic rack, having a plurality of magnetic rack magnetic teeth, adjacent ones of the magnetic rack magnetic teeth having different polarities; the second magnetic engaging part has at least one first magnetic gear connected to a shaft core member rotatable about an axis in the first transfer direction, respectively, wherein each first magnetic gear has a plurality of first magnetic gear magnetic teeth and adjacent ones of the first magnetic gear magnetic teeth have different polarities; and the power is transmittable to the magnetic rack through the at least one first magnetic gear so as to move it along the first transfer direction.

Because the protruding first magnetic gear is magnetically coupled to the first magnetic engaging part of the first carrier more intensely than the others, in the case that either the second carrier enters into the transverse section carrying the first carrier or leaves in the second transfer direction, a magnetic force will be given to the first magnetic engaging part of the first carrier pushing it to deviate from the second transfer direction. In order to reduce such negative effect, the conveying system further includes a controller; wherein: the first drive member further has a motor whose output shaft is connected to the shaft core member; and where the second carrier starts to move towards or away from the transverse section transferring the first carrier, the controller is adapted for controlling the motor to rotate the second magnetic engaging part in a compliant manner for a predetermined time interval.

Preferably, the transverse section has a releasing member, for pressing the positioning member away from the first carrier so as to release the first carrier from the second carrier when the first carrier leaves the transverse section.

The subject matter of the invention will be explained in more detail in the following text with reference to preferred exemplary embodiments which are illustrated in the drawings, in which:.

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular circuits, circuit components, interfaces, techniques, etc. in order to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known methods and programming procedures, devices, and circuits are omitted so not to obscure the description of the present invention with unnecessary detail.

<FIG> and IB illustrate a front view and a top view of a conveying system according to an embodiment of present invention. As shown in <FIG> and IB, the conveying system <NUM> is for moving object between a first transfer system T1 and a second transfer system T2 which are transversely arranged. For example, the first transfer system T1 and the second transfer system T2 may be arranged substantially vertical to each other, or inclined to each other at an angle, so that the object may change its moving direction when it successively transfers in the first transfer system T1 and the second transfer system T2.

A first carrier <NUM>, for example a shuttle, mounting the object to be transferred, is set on a pair of first guide rails <NUM> provided at the lower side and moves along the first guide rails <NUM> in a first transfer direction DI of the first transfer system T1. The first guide rails <NUM> are arranged under the first carrier <NUM> on the first transfer system T1. A plurality of first rollers <NUM> for supporting the first carrier <NUM> are provided at lower portions ofthe first carrier <NUM>. According to the above structure, the first carrier <NUM> is mounted on the first guide rails <NUM> supported with the first rollers <NUM> and is guided to move linearly by the first guide rails <NUM>.

A second carrier <NUM>, for carrying the first carrier <NUM> together with the object to be transferred, is set on a pair of second guide rails <NUM> provided at the lower side and moves along the second guide rails <NUM> in a second transfer direction D2 of the second transfer system T2. The second guide rails <NUM> are arranged under the second carrier <NUM> on the second transfer system T2. A plurality of second rollers <NUM> for supporting the second carrier <NUM> are provided at lower portions of the second carrier <NUM>. According to the above structure, the second carrier <NUM> is mounted on the second guide rails <NUM> supported with the second rollers <NUM> and is guided to move linearly by the second guide rails <NUM>.

A transverse section <NUM> may be a part of the second transfer system adjacent to the first transfer system. For example, the transverse section <NUM> of the first transfer system T1 and the second transfer system T2 is formed defined by imaginary lines extending from the first guide rails <NUM> on the second transfer system T2, which is a part of the second transfer system T2 adjacent to the first transfer system Tl. A third guide rails <NUM> are provided on the second carrier <NUM> to the opposite side of the second guide rails <NUM>, which are displaced by the same interval as that for the first guide rails <NUM> and are arranged at the same height as that for the first guide rails <NUM>. Where the second carrier <NUM> is moved to the transverse section <NUM>, the third guide rails <NUM> may be matched with the first guide rails <NUM> so that guide rails are continuous from the first transfer system T1 to the second transfer system T2.

The first carrier <NUM> may first enter the first transfer system T1, pass through the first transfer system T1 in the first transfer direction DI, then transfer to the second carrier <NUM> resting on the transverse section <NUM>, and it is successively carried by the second carrier <NUM> along the second transfer system T2 in the second transfer direction D2.

<FIG> illustrates driving system of the conveying system according to an embodiment of present invention. As shown in <FIG>, the first carrier <NUM> moves on two first guide rails <NUM> arranged in parallel with a predetermined interval. The object to be transferred is mounted on the first carrier <NUM>. When the first carrier <NUM> receives a driving force for movement, it moves by being supported and guided by the first guide rails <NUM> provided with the first rollers <NUM>. The first carrier <NUM> has a first magnetic engaging part <NUM>, for example, a magnetic rack secured to the bottom of the first carrier <NUM>, which has a plurality of magnetic rack magnetic teeth arranged in the first transfer direction DI, adjacent ones of the magnetic rack magnetic teeth having different polarities. The first magnetic engaging part <NUM> linearly slides by receiving a driving force from a first drive member <NUM> (shown by the dash-box) having a drive <NUM> and a second magnetic engaging part <NUM> of a rotational driving member to be described later. When the first magnetic engaging part <NUM> moves, the first carrier <NUM> integrated with the first magnetic engaging part <NUM> also moves.

Therefore, the first carrier <NUM> moves by receiving a magnetic driving force from the second magnetic engaging part <NUM>.

The second magnetic engaging part for supplying a driving force for linearly moving the first carrier <NUM> provided with the first rollers <NUM> are arranged along the first guide rails <NUM>. The second magnetic engaging part includes at least one first magnetic gear <NUM> rotatable about at least one first shaft along first axis Al, respectively, wherein each first magnetic gear <NUM> has a plurality of first magnetic gear magnetic teeth and adjacent ones of the first magnetic gear magnetic teeth have different polarities. It receives power (the driving force) from drive <NUM> of a motor or the like and rotates in the normal or reverse directions. The respective first axes Al are arranged in parallel with each other, and are arranged substantially perpendicular or inclined to the first transfer direction D1. By using bevel gear as the first magnetic gear <NUM> and bevel rack as the first magnetic engaging part <NUM> or conical gear as the first magnetic gear <NUM> and straight rack as the first magnetic engaging part <NUM>, the first magnetic engaging part <NUM> receives power (the driving force) from drive <NUM> of a motor or the like and rotates in the normal or reverse directions.

Moreover, because the first transfer system T1 and the second transfer system T2 according to conventional solutions would have been partitioned by their respective profile, the second magnetic engaging part <NUM> of the first transfer system T1 would also be separated from the transverse section <NUM>. Therefore, a displacement of the second magnetic engaging part <NUM> would be produced at the transverse section <NUM>. Because such displacement exists, matching the second magnetic engaging part <NUM> to the transverse section <NUM> becomes an issue when moving the first carrier <NUM> from the first transfer system T1 to the second transfer system T2. At least a portion of the second magnetic engaging part is arranged in a space between the transverse section <NUM> and the first magnetic engaging part <NUM> of the first carrier <NUM> when the first carrier <NUM> crosses an edge of the transverse section <NUM>. For example as shown in <FIG>, at least one first magnetic gear <NUM> is located protruding to the above of the transverse section <NUM>. The shaft Al for such protruding first magnetic gear <NUM> is secured to a portion of the first transfer system T1 extending to the above of the transverse section <NUM>, as well. Such protruding first magnetic gear <NUM> together with the other first magnetic gear <NUM> are ratatably supported by the respective of the shafts Al secured to the first transfer system T1 and arranged below the first magnetic engaging part <NUM> of the first carrier <NUM>. They have a function for moving the first carrier <NUM> forward or backward along the first transfer direction DI in accordance with the magnetic coupling action between the first magnetic engaging part <NUM> and themselves. In the case of forward direction where the first carrier <NUM> enters into the transverse section <NUM> from the first transfer system T1, even where the whole part of the first magnetic engaging part <NUM> has entered into the transverse section <NUM>, the magnetic coupling between the first magnetic engaging part <NUM> and the other first magnetic gear <NUM> become insignificant as compared with the protruding first magnetic gear <NUM> because the latter is still kept nearby the first magnetic engaging part <NUM>, in particular above the transverse section <NUM> and below the first magnetic engaging part <NUM> of the first carrier <NUM>. Due to such maintained vicinity, an effect of the magnetic coupling by the protruding first magnetic gear <NUM> keeps substantially constant above a predetermined level. This is helpful for moving the first carrier <NUM> onto the second carrier <NUM> resting at the transverse section <NUM> along the first guide rails <NUM> and the third guide rails <NUM>. On the other side, in the case of backward direction where the first carrier <NUM> leaves the transverse section <NUM> for the first transfer system T1, even where the whole part of the first magnetic engaging part <NUM> is still located in the transverse section <NUM>, due to similar analysis, the effect of the magnetic coupling by the protruding first magnetic gear <NUM> keeps substantially constant above a predetermined level, which makes it possible to move the first carrier <NUM> away from the second carrier <NUM> resting at the transverse section <NUM> along the first guide rails <NUM> and the third guide rails <NUM>.

<FIG> illustrate driving system of the conveying system not according to the invention. In this embodiment, however, the details of <FIG> showing that the second magnetic engaging part does not cross an edge of the transverse section are not according to the invention. For the purpose of concise and clarity, only features different based on that of <FIG> are described. As shown in <FIG>, instead of having a protruding first magnetic gear <NUM> and a protruding portion of the first transfer system T1, the first drive member <NUM> has a first divided section <NUM> and a second divided section <NUM>. The second magnetic engaging part of the first divided section <NUM> (shown by the dash-box) includes at least one first magnetic gear <NUM> rotatable about at least one first shaft along first axis Al secured to the first transfer system T1 to move the first carrier <NUM> along a path of the first transfer system T1. The second magnetic engaging part of the second divided section <NUM> (shown by the dash-box) includes at least one first magnetic gear <NUM> rotatable about at least one first shaft along first axis Al secured to the second carrier <NUM> to move the first carrier <NUM> above entering into or leaving the transverse section <NUM>. Therefore, the second magnetic engaging part of the second divided section <NUM>, as a portion of the second magnetic engaging part of the first drive member <NUM>, is arranged in a space between the transverse section <NUM> and the first magnetic engaging part <NUM> of the first carrier <NUM> when the first carrier <NUM> crosses an edge of the transverse section <NUM>. For both of the cases of transfer in forward and backward direction, due to similar analysis, the effect of the magnetic coupling by the second magnetic engaging part of the second divided section <NUM> keeps substantially constant above a predetermined level, which make it possible to have enough magnetic coupling force to move the first carrier <NUM> onto or away from the second carrier <NUM> resting at the transverse section <NUM> along the first guide rails <NUM> and the third guide rails <NUM>.

<FIG> illustrate driving system of the conveying system according to another embodiment of present invention. For the purpose of concise and clarity, only features different based on that of <FIG> are described. As shown in <FIG>, the second magnetic engaging part of the first drive member <NUM> includes at least one first magnetic gear <NUM> rotatable about at least one first shaft along first axis Al secured to the first transfer system T1 below the first carrier <NUM>. The respective first axes Al are arranged co-axially and the first axis Al and the first transfer direction DI are arranged substantially in parallel with each other. At least one first magnetic gear <NUM> rotatably supported on one end of the first shaft Al is located protruding to the above of the transverse section <NUM>. Therefore, the protruding first magnetic gear <NUM>, as a portion of the second magnetic engaging part of the first drive member <NUM>, is arranged in a space between the transverse section <NUM> and the first magnetic engaging part <NUM> of the first carrier <NUM> when the first carrier <NUM> crosses an edge of the transverse section <NUM>. For both of the cases of transfer in forward and backward direction, due to similar analysis, the effect of the magnetic coupling by the second magnetic engaging part of the first drive member <NUM> keeps substantially constant above a predetermined level, which make it possible to have enough magnetic coupling force to move the first carrier <NUM> onto or away from the second carrier <NUM> resting at the transverse section <NUM> along the first guide rails <NUM> and the third guide rails <NUM>.

<FIG> illustrate driving system of the conveying system not according to the invention. In this embodiment, however, the details of <FIG> showing that the second magnetic engaging part does not cross an edge of the transverse section are not according to the invention. For the purpose of concise and clarity, only features different based on that of <FIG> A and 4Bare described. As shown in <FIG>, instead of having a protruding first magnetic gear <NUM> and a protruding portion of the first shaft Al, the first drive member <NUM> has a first divided section <NUM> and a second divided section <NUM>. The second magnetic engaging part of the first divided section <NUM> includes at least one first magnetic gear <NUM> rotatable about a first shaft along first axis Al secured to the first transfer system T1 to move the first carrier <NUM> along a path of the first transfer system Tl. The second magnetic engaging part of the second divided section <NUM> includes at least one first magnetic gear <NUM> rotatable about a second shaft along second axis A2 secured to the second carrier <NUM> to move the first carrier <NUM> above entering into or leaving the transverse section <NUM>. Therefore, where the first carrier <NUM> crosses an edge of the transverse section <NUM> to move onto or leave the second carrier <NUM>, the second magnetic engaging part of the second divided section <NUM>, as a portion of the second magnetic engaging part of the first drive member <NUM>, is arranged in a space between the transverse section <NUM> and the first magnetic engaging part <NUM> of the first carrier <NUM>. For both of the cases of transfer in forward and backward direction, due to similar analysis, the effect of the magnetic coupling by the second magnetic engaging part of the second divided section <NUM> keeps substantially constant above a predetermined level, which make it possible to have enough magnetic coupling force to move the first carrier <NUM> onto or away from the second carrier <NUM> resting at the transverse section <NUM> along the first guide rails <NUM> and the third guide rails <NUM>. It is preferably that the first shaft Al and the second shaft A2 are arranged in line where the second carrier <NUM> is located in the transverse section <NUM> for communicating the first carrier <NUM>. A clutch <NUM> maybe provided to secure the first divided section <NUM> and the section divided section <NUM>. The drive <NUM> may power to the second divided section <NUM> though the first divided section <NUM> The first shaft Al and the second shaft A2 are constituted so as to rotate simultaneously. This increases the smoothness of commutation of the first carrier <NUM> between the first transfer system T1 and the second carrier <NUM> of the second transfer system T2, and at the same time. In addition, this reduces the complexity and cost of the system because there is no need for a separate drive for driving the second shaft A2.

Preferably, the second carrier <NUM> has a third magnetic engaging part and a second drive member. The second drive member has a fourth magnetic engaging part interacting with the third magnetic engaging part of the second carrier <NUM> to move the second carrier <NUM> in the second transfer direction D2 of the second transfer system T2 towards or away from the transverse section <NUM>.

<FIG> illustrates two states of the mechanism for securing the first carrier to the second carrier at the transverse section according to an embodiment of present invention. As shown in <FIG>, the second carrier <NUM> has a positioning member <NUM> with a fifth magnetic engaging part <NUM> to its end, which may protrude from the second carrier <NUM> interacting with the first magnetic engaging part <NUM> of the first carrier <NUM> to hold the first carrier <NUM>. The positioning member <NUM> may be shaped like a rod, which is inserted and fitted into a through hole (not shown) formed through the second carrier <NUM>. The axial direction of the hole is arranged substantially perpendicular to the third guide rails <NUM> towards the first magnetic engaging part <NUM> where the first carrier <NUM> rests at the desired mounting location on the second carrier <NUM>. The fifth magnetic engaging part <NUM> is fixed to the end of the rod closer to the first carrier <NUM> at the desired mounting location.

In the holding state (as shown in the left side) where the first carrier <NUM> rests at the desired mounting location on the second carrier <NUM>, the fifth magnetic engaging part <NUM> of the positioning member <NUM> is magnetically coupled with the first magnetic engaging part <NUM> of the first carrier <NUM>, thus the securing is established between the first carrier <NUM> and the second carrier <NUM> via the positioning member <NUM> and the fifth magnetic engaging part <NUM>. When moving the second carrier <NUM>, the movement is transmitted to the first carrier <NUM> following the movement.

In the releasing state (as shown in the right side), the positioning member <NUM> is set to position where a predetermined gap is present between the fifth magnetic engaging part <NUM> of the positioning member <NUM> magnetic coupling with the first magnetic engaging part <NUM> of the first carrier <NUM>. The magnetic coupling thus becomes weak not be able to secure the first magnetic engaging part <NUM> of the first carrier <NUM>. Therefore, the first carrier <NUM> is released from the second carrier <NUM>.

By reciprocating the positioning member <NUM> in the through hole, the holding state may be changed to the releasing state, or vice versa.

The transverse section <NUM> may have a releasing member, for pressing the positioning member <NUM> away from the first carrier <NUM> so as to release the first carrier <NUM> from the second carrier <NUM> when the first carrier <NUM> leaves the transverse section <NUM>. For example the releasing member <NUM> may be a linear actuator mounted at the transverse section <NUM> with a hook secured to an end of its sliding tube or a cam.

<FIG> illustrates two states of the mechanism for securing the first carrier to the second carrier at the transverse section according to another embodiment of present invention. As shown in <FIG>, the second carrier <NUM> has a positioning member <NUM> with a fifth magnetic engaging part <NUM> to its end, which may protrude from the second carrier <NUM> indirectly interacting with the first magnetic engaging part <NUM> of the first carrier <NUM> via the second magnetic engaging part of the second divided section <NUM>, <NUM> to hold the first carrier <NUM>. Different from the embodiment according to <FIG> is that the second carrier <NUM> has the second magnetic engaging part of the second divided section <NUM>. It includes at least one first magnetic gear <NUM> rotatable about a second shaft along second axis A2 secured to the second carrier <NUM> (see <FIG>). Because the effect of the magnetic coupling by the second magnetic engaging part of the second divided section <NUM> keeps substantially constant above a predetermined level, which make it possible to have enough magnetic coupling force to move the first carrier <NUM> onto or away from the second carrier <NUM> by rotating the at least one first magnetic gear <NUM>. On the other side, where the first magnetic gear <NUM> is blocked from rotation, the magnetic coupling applied to the first magnetic engaging part <NUM> of the first carrier <NUM> will remain unchanged applying a hold force to the first magnetic engaging part <NUM>. The axial direction of the hole is arranged substantially perpendicular to the third guide rails <NUM> towards the first magnetic gear <NUM>.

In the holding state (as shown in the left side) where the first carrier <NUM> rests at the desired mounting location on the second carrier <NUM>, the fifth magnetic engaging part <NUM> of the positioning member <NUM> is magnetically coupled with the first magnetic gear <NUM> of the second carrier <NUM>, thus the securing is established between the first carrier <NUM> and the second carrier <NUM> via the first magnetic engaging part <NUM>, the first magnetic gear <NUM>, the fifth magnetic engaging part <NUM>, and the positioning member <NUM>. When moving the second carrier <NUM>, the movement is transmitted to the first carrier <NUM> following the movement.

In the releasing state (as shown in the right side), the positioning member <NUM> is set to position where a predetermined gap is present between the fifth magnetic engaging part <NUM> and the first magnetic gear <NUM>. The magnetic coupling thus becomes weak not be able to secure the first magnetic engaging part <NUM> of the first carrier <NUM>. Therefore, the first carrier <NUM> is released from the second carrier <NUM>.

Because the protruding first magnetic gear <NUM> is magnetically coupled to the first magnetic engaging part <NUM> of the first carrier <NUM> more intensely than the others, in the case that either the second carrier <NUM> enters into the transverse section <NUM> carrying the first carrier <NUM> or leaves in the second transfer direction D2, a magnetic force will be given to the first magnetic engaging part <NUM> of the first carrier <NUM> pushing it to deviate from the second transfer direction D2. In order to reduce such negative effect, the conveying system further includes a controller. When the second carrier starts to move towards or away from the transverse section <NUM> transferring the first carrier <NUM>, the controller is adapted for controlling the motor <NUM> to rotate the second magnetic engaging part <NUM> in a compliant manner for a predetermined time interval. For example, corresponding to the movement of the first carrier <NUM>, the second magnetic engaging part <NUM> is rotated in a direction same as that for moving the first carrier <NUM> towards or away from the transverse section <NUM> for a predetermined time interval.

Claim 1:
A magnetic conveying system for moving an object between a first transfer system (T1) and a second transfer system (T2) transversely arranged, including:
a first carrier (<NUM>) for transferring the object, having a first magnetic engaging part (<NUM>); and
a first drive member (<NUM>), having a second magnetic engaging part (<NUM>) interacting with the first magnetic engaging part (<NUM>) of the first carrier (<NUM>) to move the first carrier (<NUM>) in a first transfer direction (D1) of the first transfer system (T1) to a transverse section (<NUM>) of the first transfer system (T1) and the second transfer system (T2);
a second carrier (<NUM>) for transferring the first carrier (<NUM>), having a third magnetic engaging part; and
a second drive member, having a fourth magnetic engaging part interacting with the third magnetic engaging part of the second carrier (<NUM>) to move the second carrier in a second transfer direction (D2) of the second transfer system (T2) towards or away from the transverse section;
characterised in that at least a portion of the second magnetic engaging part (<NUM>) is arranged in a space between the transverse section (<NUM>) and the first magnetic engaging part (<NUM>) of the first carrier crossing an edge of the transverse section (<NUM>).