WO2010040809A1 - A multi-track helical conveyor - Google Patents
A multi-track helical conveyor Download PDFInfo
- Publication number
- WO2010040809A1 WO2010040809A1 PCT/EP2009/063108 EP2009063108W WO2010040809A1 WO 2010040809 A1 WO2010040809 A1 WO 2010040809A1 EP 2009063108 W EP2009063108 W EP 2009063108W WO 2010040809 A1 WO2010040809 A1 WO 2010040809A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- track conveyor
- conveyor
- conveyor member
- outer track
- members
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/02—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration for conveying in a circular arc
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
- A61M15/0045—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using multiple prepacked dosages on a same carrier, e.g. blisters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/0001—Details of inhalators; Constructional features thereof
- A61M15/0011—Details of inhalators; Constructional features thereof with microcapsules, e.g. several in one dose
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
- A61M15/003—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using capsules, e.g. to be perforated or broken-up
- A61M15/0031—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using capsules, e.g. to be perforated or broken-up by bursting or breaking the package, i.e. without cutting or piercing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
- A61M15/0045—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using multiple prepacked dosages on a same carrier, e.g. blisters
- A61M15/0046—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using multiple prepacked dosages on a same carrier, e.g. blisters characterized by the type of carrier
- A61M15/0048—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using multiple prepacked dosages on a same carrier, e.g. blisters characterized by the type of carrier the dosages being arranged in a plane, e.g. on diskettes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/16—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors for conveyors having endless load-carriers movable in curved paths
- B65G21/18—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors for conveyors having endless load-carriers movable in curved paths in three-dimensionally curved paths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/34—Devices for discharging articles or materials from conveyor
- B65G47/46—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points
- B65G47/51—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination
- B65G47/5104—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles
- B65G47/5109—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles first In - First Out systems: FIFO
- B65G47/5113—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles first In - First Out systems: FIFO using endless conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/24—Helical or spiral conveying path
Definitions
- the present invention relates to a conveyor for conveying products, comprising at least a drivable helically- shaped inner track conveyor member and a drivable helically- shaped outer track conveyor member, wherein the outer track conveyor member surrounds the inner track conveyor member.
- Such a conveyor is known from WO 2008/079010. Products which are received at inlets of the known conveyor are transported downwardly along the helically shaped inner and outer track conveyor members and leave the conveyor at different height levels.
- a disadvantage of the known conveyor is that the ratio between the lengths of the paths along the inner and outer track conveyor members is fixed.
- the object of the invention is to provide a conveyor in which the disadvantage is eliminated. This is achieved by the conveyor according to the invention which is characterized in that the pitches of the inner track conveyor member and the outer track conveyor member are different.
- This feature provides the opportunity to vary the ratio between the path lengths of the inner and outer track conveyor members.
- the pitches of the helically- shaped inner track conveyor member and the helically-shaped outer track conveyor member are the same in order to support the inner and outer track conveyor members at the same height levels.
- the distance along the inner track conveyor member is shorter than that of the outer track conveyor member due to the smaller diameter of the inner track conveyor member with respect to the outer track conveyor member.
- Due to different pitches of the conveyor according to the invention the distance along the path of the inner track conveyor member may even be the same as the distance along the path of the outer track conveyor member as measured over a certain distance along the centre line of the conveyor.
- the pitch of the outer track conveyor member may be larger than that of the inner track conveyor member in order to bring the path lengths of the inner track conveyor member and the outer track conveyor member, as measured between two parallel planes extending perpendicularly to a longitudinal centre line of the conveyor, closer to each other.
- the pitches of the inner and outer track conveyor members are selected such that the lengths along the paths of the inner and outer track conveyor members are substantially the same as measured between two parallel planes extending perpendicularly to a longitudinal centre line of the conveyor.
- the inclination along the helical path of the inner track conveyor member is substantially the same as that of the outer track conveyor member.
- the inner track conveyor member and the outer track conveyor member may be supported by supporting members which are fixed to at least a frame supporting element extending substantially parallel to a longitudinal centre line of the conveyor and disposed between the inner and outer track conveyor members.
- the supporting elements support both the inner and outer track conveyor members, which means efficient use of space.
- traditional conveyors such as described in respect of the prior art conveyor hereinbefore comprise a central column from which elongated supporting members project in outward direction; traditionally, in case of adding a parallel helical track such an elongated supporting member could be extended to support the outer track conveyor member, as well.
- elongated supporting members projecting from a central column could be applied for supporting the outer track conveyor member, but this may be disadvantageous because the supporting members would be located within the space between two height levels of the inner track conveyor member.
- the helical shape of the inner track conveyor member and/or the outer track conveyor member may have a clockwise turning or anti-clockwise turning orientation, as seen parallel to a longitudinal centre line of the conveyor. This provides, for example, freedom of positioning an inlet and outlet for the inner and outer track conveyor members.
- the inner track conveyor member and the outer track conveyor member are coupled to each other such that products transported by the conveyor are transported both along the path of the inner track conveyor member and the outer track conveyor member. In this embodiment the products are transported upwardly via the inner track conveyor member and downwardly via the outer track conveyor member or in opposite direction.
- the inner track conveyor member and the outer track conveyor member can be integrated in a single conveyor member which follows the entire conveyor under operating conditions.
- the invention is also related to a conveyor for conveying products, comprising at least a helically-shaped inner track conveyor member and a helically-shaped outer track conveyor member, wherein the inner track conveyor member is surrounded by the outer track conveyor member, wherein the inner and outer track conveyor members are drivable by driving means which follow the paths of the inner and outer track conveyor members, wherein the inner track conveyor member and/or the outer track conveyor member is/are supported by at least a frame supporting element extending substantially parallel to a longitudinal centre line of the conveyor and disposed between the inner and outer track conveyor members.
- the invention is also related to a conveyor for conveying products, comprising at least a helically-shaped inner track conveyor member and a helically-shaped outer track conveyor member, wherein the inner track conveyor member is surrounded by the outer track conveyor member, wherein the inner and outer track conveyor members are drivable by driving means which follow the paths of the inner and outer track conveyor members, wherein the inner track conveyor member is supported by at least a frame supporting element extending substantially parallel to a longitudinal centre line of the conveyor and disposed at an inner circumferential side of the inner track conveyor member.
- the invention is also related to a conveyor for conveying products, comprising at least a helically-shaped inner track conveyor member and a helically-shaped outer track conveyor member, wherein the inner track conveyor member is surrounded by the outer track conveyor member, wherein the inner and outer track conveyor members are drivable by driving means which follow the paths of the inner and outer track conveyor members, wherein the outer track conveyor member is supported by at least a frame supporting element extending substantially parallel to a longitudinal centre line of the conveyor and disposed at an outer circumferential side of the outer track conveyor member.
- the frame supporting element may comprises a plurality of pillar-shaped elements extending substantially parallel to each other.
- the inner track conveyor member and the outer track conveyor member may each be drivable by a driving belt, e.g. a chain, which follows the helical path of the inner track conveyor member and the outer track conveyor member.
- the driving belt may be guided at least radially by a stationary frame of the conveyor.
- Fig. 1 is a sectional view of an embodiment of the conveyor according to the invention.
- Fig. 2 is a cross-sectional view along the line II-II of Fig. 1 on a larger scale.
- Fig. 3 is a similar view as Fig. 2 on a larger scale, but showing an alternative embodiment.
- Fig. 4 is a plan view of another alternative embodiment of the conveyor according to the invention.
- Figs. 5a-e are similar views as Fig. 4 on a smaller scale, showing other alternative embodiments.
- Figs. 6-8 are plan views of different alternative embodiments of the conveyor according to the invention.
- Figs. 1 and 2 show different views of an embodiment of a conveyor 1 for conveying products according to the invention.
- the conveyor 1 comprises a drivable helically-shaped inner track conveyor member 2 and a drivable helically-shaped outer track conveyor member 3.
- the outer track conveyor member 3 surrounds the inner track conveyor member 2, as seen from above in Fig. 1, and the conveyor 1 has a longitudinal centre line 4, which is both the longitudinal centre line of the inner track conveyor member 2 and the outer track conveyor member 3.
- the longitudinal centre lines of the inner track conveyor member 2 and the outer track conveyor member 3 substantially coincide.
- the cross sections of both the inner and outer track conveyor members 2, 3 are circular.
- Fig. 2 shows that the pitch of the inner track conveyor member 2 is smaller than that of the outer track conveyor member 3.
- the pitch of the inner track conveyor member 2 is indicated by A and the pitch of the outer track conveyor member 3 is indicated by B.
- the pitches A, B of the inner and outer track conveyor members 2, 3 may be selected such that the path lengths along the inner and outer track conveyor members 2, 3 are substantially the same as measured between two parallel planes extending perpendicularly to the longitudinal centre line 4 of the conveyor 1.
- Figs. 1 and 2 comprises a frame 5, which is provided with a central pipe or column 6 extending parallel to the longitudinal centre line 4.
- the frame 5 is further provided with a frame support 7 comprising eight pillars
- the frame support 7 comprises supporting members 9 by which the inner track conveyor member 2 and the outer track conveyor member 3 are supported.
- Fig. 2 shows that the supporting members
- the frame support 7 could be replaced by supporting members 9 which are vertically staggered. This means that both the inner track conveyor member 2 and the outer track conveyor member 3 are supported by supporting members 9 which are fixed to the central column 6.
- Fig. 3 shows an alternative embodiment of the conveyor 1 according the invention.
- the central column 6 of the embodiment of Figs. 1 and 2 is eliminated and the frame support 7 comprises four pillars 8 extending substantially parallel to the longitudinal centre line 4 of the conveyor 1 and being disposed between the inner track conveyor member 2 and the outer track conveyor member 3.
- Fig. 4 shows another alternative embodiment of the conveyor 1.
- the frame support 7 comprises eight pillars 8 as frame supporting elements extending substantially parallel to the longitudinal centre line 4 of the conveyor 1 and being disposed between the inner track conveyor member 2 and the outer track conveyor member 3.
- the difference of this embodiment with respect to that of Fig. 1 is that the column 6 is eliminated.
- Fig. 5a-5e show different alternative embodiments, wherein the embodiment of Fig. 5c is analogous to that of Fig. 4.
- the inner track conveyor member 2 is supported by pillars 8 extending substantially parallel to the longitudinal centre line 4 of the conveyor 1 and disposed at an inner circumferential side of the inner track conveyor member 2.
- Fig. 5a, 5b, 5d show that the outer track conveyor member 3 is supported by pillars 8 extending substantially parallel to a longitudinal centre line of the conveyor and disposed at an outer circumferential side of the outer track conveyor member.
- Fig. 5b-e show embodiments in which the inner track conveyor member 2 is supported by pillars extending substantially parallel to the longitudinal centre line 4 of the conveyor 1 and disposed at an inner circumferential side of the outer track conveyor member 3.
- Fig. 6 shows a plan view of an alternative embodiment of a conveyor 1 which comprises an inner track conveyor member 2 and an outer track conveyor member 3.
- Each of the conveyor members 2, 3 has its own inlet and outlet and both conveyor members 2, 3 extend more or less parallel to each other.
- the conveyor 1 may be adapted such that products on both conveyor members 2, 3 are transported in the same direction or in opposite direction. In the latter case, the products will be transported upwardly by the one conveyor member 2 and downwardly by the other conveyor member 3.
- the pitches of the conveyor members 2, 3 may be different such that the distance of the path that the products follow on the outer track conveyor member 3 is not automatically longer than the path that the products follow on the inner track conveyor member 2.
- Fig. 7 shows an embodiment of the conveyor 1 of which the helical shapes of the inner and outer conveyor members 2, 3 have different helical orientations. As seen in a direction parallel to the longitudinal centre line 4 one of the conveyor members 2 has an anti-clockwise turning orientation whereas the other conveyor member 3 has a clockwise turning orientation.
- the helical shapes of the conveyor members 2, 3 of the embodiment as shown in Fig. 8 have the same orientations as those in Fig. 7, but in this case the inner and outer conveyor members 2, 3 are coupled to each other such that products follow the inner track conveyor member 2 upwardly and the outer track conveyor member 3 downwardly or in the opposite direction.
- a single drivable conveyor belt may be applied whereas in the other embodiments as described hereinbefore separately drivable conveyor belts may be applied.
- the inner and outer conveyor members 2, 3 may comprise conveyor belts or slats which are connected to a driven chain.
- the invention provides a conveyor comprising at least a drivable helically- shaped inner track conveyor member and a drivable helically- shaped outer track conveyor member of which the path lengths can be varied.
- the invention is not limited to the embodiments shown in the drawings and described hereinbefore, which may be varied in different manners within the scope of the claims and their technical equivalents. It is possible, for example, that the cross section of the conveyor is not circular, but an alternative shape, for example elliptical. Furthermore, the embodiments as shown hereinbefore may be combined, for example variations in pitch, supporting frame structure or the like.
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Abstract
A conveyor for conveying products comprises at least a drivable helically-shaped inner track conveyor member (2) and a drivable helically-shaped outer track conveyor member (3). The outer track conveyor member (3) surrounds the inner track conveyor member (2). The pitches of the inner track conveyor member (2) and the outer track conveyor member (3) are different.
Description
A multi-track helical conveyor
The present invention relates to a conveyor for conveying products, comprising at least a drivable helically- shaped inner track conveyor member and a drivable helically- shaped outer track conveyor member, wherein the outer track conveyor member surrounds the inner track conveyor member.
Such a conveyor is known from WO 2008/079010. Products which are received at inlets of the known conveyor are transported downwardly along the helically shaped inner and outer track conveyor members and leave the conveyor at different height levels. A disadvantage of the known conveyor is that the ratio between the lengths of the paths along the inner and outer track conveyor members is fixed.
The object of the invention is to provide a conveyor in which the disadvantage is eliminated. This is achieved by the conveyor according to the invention which is characterized in that the pitches of the inner track conveyor member and the outer track conveyor member are different.
This feature provides the opportunity to vary the ratio between the path lengths of the inner and outer track conveyor members. In traditional conveyors the pitches of the helically- shaped inner track conveyor member and the helically-shaped outer track conveyor member are the same in order to support the inner and outer track conveyor members at the same height levels. As a consequence, as seen along a certain distance along the centre line of the conveyor the distance along the inner track conveyor member is shorter than that of the outer track conveyor member due to the smaller diameter of the inner track conveyor member with respect to the outer track conveyor member. Due to different pitches of the conveyor according to the invention the distance along the path of the inner track conveyor member may even be the same as the distance along the path of the outer track conveyor member as measured over a certain distance along the centre line of the conveyor. This means that the inclination along the inner track conveyor member
is steeper than that of the outer track conveyor member. In contrast to this, the maximum allowable inclination of the inner track conveyor member of traditional conveyors determined the inclination of the outer track conveyor member, as well. The pitch of the outer track conveyor member may be larger than that of the inner track conveyor member in order to bring the path lengths of the inner track conveyor member and the outer track conveyor member, as measured between two parallel planes extending perpendicularly to a longitudinal centre line of the conveyor, closer to each other.
In a particular embodiment the pitches of the inner and outer track conveyor members are selected such that the lengths along the paths of the inner and outer track conveyor members are substantially the same as measured between two parallel planes extending perpendicularly to a longitudinal centre line of the conveyor.
In an alternative embodiment the inclination along the helical path of the inner track conveyor member is substantially the same as that of the outer track conveyor member. The inner track conveyor member and the outer track conveyor member may be supported by supporting members which are fixed to at least a frame supporting element extending substantially parallel to a longitudinal centre line of the conveyor and disposed between the inner and outer track conveyor members. In this case the supporting elements support both the inner and outer track conveyor members, which means efficient use of space. Moreover, traditional conveyors such as described in respect of the prior art conveyor hereinbefore comprise a central column from which elongated supporting members project in outward direction; traditionally, in case of adding a parallel helical track such an elongated supporting member could be extended to support the outer track conveyor member, as well. In case of different pitches elongated supporting members projecting from a central column could be applied for supporting the outer track conveyor member, but this may be disadvantageous because the supporting members would be located within the space between two height levels of the inner track conveyor member.
The helical shape of the inner track conveyor member and/or the outer track conveyor member may have a clockwise
turning or anti-clockwise turning orientation, as seen parallel to a longitudinal centre line of the conveyor. This provides, for example, freedom of positioning an inlet and outlet for the inner and outer track conveyor members. In a preferred embodiment the inner track conveyor member and the outer track conveyor member are coupled to each other such that products transported by the conveyor are transported both along the path of the inner track conveyor member and the outer track conveyor member. In this embodiment the products are transported upwardly via the inner track conveyor member and downwardly via the outer track conveyor member or in opposite direction. In fact the inner track conveyor member and the outer track conveyor member can be integrated in a single conveyor member which follows the entire conveyor under operating conditions.
The invention is also related to a conveyor for conveying products, comprising at least a helically-shaped inner track conveyor member and a helically-shaped outer track conveyor member, wherein the inner track conveyor member is surrounded by the outer track conveyor member, wherein the inner and outer track conveyor members are drivable by driving means which follow the paths of the inner and outer track conveyor members, wherein the inner track conveyor member and/or the outer track conveyor member is/are supported by at least a frame supporting element extending substantially parallel to a longitudinal centre line of the conveyor and disposed between the inner and outer track conveyor members.
The invention is also related to a conveyor for conveying products, comprising at least a helically-shaped inner track conveyor member and a helically-shaped outer track conveyor member, wherein the inner track conveyor member is surrounded by the outer track conveyor member, wherein the inner and outer track conveyor members are drivable by driving means which follow the paths of the inner and outer track conveyor members, wherein the inner track conveyor member is supported by at least a frame supporting element extending substantially parallel to a longitudinal centre line of the conveyor and disposed at an inner circumferential side of the inner track conveyor member.
The invention is also related to a conveyor for conveying products, comprising at least a helically-shaped inner track conveyor member and a helically-shaped outer track conveyor member, wherein the inner track conveyor member is surrounded by the outer track conveyor member, wherein the inner and outer track conveyor members are drivable by driving means which follow the paths of the inner and outer track conveyor members, wherein the outer track conveyor member is supported by at least a frame supporting element extending substantially parallel to a longitudinal centre line of the conveyor and disposed at an outer circumferential side of the outer track conveyor member.
The frame supporting element may comprises a plurality of pillar-shaped elements extending substantially parallel to each other.
The inner track conveyor member and the outer track conveyor member may each be drivable by a driving belt, e.g. a chain, which follows the helical path of the inner track conveyor member and the outer track conveyor member. The driving belt may be guided at least radially by a stationary frame of the conveyor.
The invention will hereafter be elucidated with reference to the schematic drawings showing embodiments of the invention by way of example. Fig. 1 is a sectional view of an embodiment of the conveyor according to the invention.
Fig. 2 is a cross-sectional view along the line II-II of Fig. 1 on a larger scale.
Fig. 3 is a similar view as Fig. 2 on a larger scale, but showing an alternative embodiment.
Fig. 4 is a plan view of another alternative embodiment of the conveyor according to the invention.
Figs. 5a-e are similar views as Fig. 4 on a smaller scale, showing other alternative embodiments. Figs. 6-8 are plan views of different alternative embodiments of the conveyor according to the invention.
Figs. 1 and 2 show different views of an embodiment of a conveyor 1 for conveying products according to the invention. The conveyor 1 comprises a drivable helically-shaped inner track
conveyor member 2 and a drivable helically-shaped outer track conveyor member 3. The outer track conveyor member 3 surrounds the inner track conveyor member 2, as seen from above in Fig. 1, and the conveyor 1 has a longitudinal centre line 4, which is both the longitudinal centre line of the inner track conveyor member 2 and the outer track conveyor member 3. Thus, in this embodiment the longitudinal centre lines of the inner track conveyor member 2 and the outer track conveyor member 3 substantially coincide. As can be seen in Fig. 1 the cross sections of both the inner and outer track conveyor members 2, 3 are circular.
Fig. 2 shows that the pitch of the inner track conveyor member 2 is smaller than that of the outer track conveyor member 3. The pitch of the inner track conveyor member 2 is indicated by A and the pitch of the outer track conveyor member 3 is indicated by B. In a particular embodiment the pitches A, B of the inner and outer track conveyor members 2, 3 may be selected such that the path lengths along the inner and outer track conveyor members 2, 3 are substantially the same as measured between two parallel planes extending perpendicularly to the longitudinal centre line 4 of the conveyor 1.
The embodiment of Figs. 1 and 2 comprises a frame 5, which is provided with a central pipe or column 6 extending parallel to the longitudinal centre line 4. The frame 5 is further provided with a frame support 7 comprising eight pillars
8 extending substantially parallel to the longitudinal centre line 4 of the conveyor 1 at a predetermined angular distance with respect to each other and being disposed between the inner track conveyor member 2 and the outer track conveyor member 3. The frame support 7 comprises supporting members 9 by which the inner track conveyor member 2 and the outer track conveyor member 3 are supported. Fig. 2 shows that the supporting members
9 associated with the inner track conveyor member 2 are not always aligned with the supporting member 9 associated with the outer track conveyor member 2 as seen in radial direction from the centre line 4. This is a consequence of the different pitches A, B of the inner and outer track conveyor members 2, 3.
Alternatively, the frame support 7 could be replaced by supporting members 9 which are vertically staggered. This means
that both the inner track conveyor member 2 and the outer track conveyor member 3 are supported by supporting members 9 which are fixed to the central column 6.
Fig. 3 shows an alternative embodiment of the conveyor 1 according the invention. In this case the central column 6 of the embodiment of Figs. 1 and 2 is eliminated and the frame support 7 comprises four pillars 8 extending substantially parallel to the longitudinal centre line 4 of the conveyor 1 and being disposed between the inner track conveyor member 2 and the outer track conveyor member 3.
Fig. 4 shows another alternative embodiment of the conveyor 1. In this case the frame support 7 comprises eight pillars 8 as frame supporting elements extending substantially parallel to the longitudinal centre line 4 of the conveyor 1 and being disposed between the inner track conveyor member 2 and the outer track conveyor member 3. The difference of this embodiment with respect to that of Fig. 1 is that the column 6 is eliminated.
Fig. 5a-5e show different alternative embodiments, wherein the embodiment of Fig. 5c is analogous to that of Fig. 4. In Fig. 5a, b, e the inner track conveyor member 2 is supported by pillars 8 extending substantially parallel to the longitudinal centre line 4 of the conveyor 1 and disposed at an inner circumferential side of the inner track conveyor member 2. Fig. 5a, 5b, 5d show that the outer track conveyor member 3 is supported by pillars 8 extending substantially parallel to a longitudinal centre line of the conveyor and disposed at an outer circumferential side of the outer track conveyor member. Fig. 5b-e show embodiments in which the inner track conveyor member 2 is supported by pillars extending substantially parallel to the longitudinal centre line 4 of the conveyor 1 and disposed at an inner circumferential side of the outer track conveyor member 3.
Fig. 6 shows a plan view of an alternative embodiment of a conveyor 1 which comprises an inner track conveyor member 2 and an outer track conveyor member 3. Each of the conveyor members 2, 3 has its own inlet and outlet and both conveyor members 2, 3 extend more or less parallel to each other. The conveyor 1 may be adapted such that products on both conveyor
members 2, 3 are transported in the same direction or in opposite direction. In the latter case, the products will be transported upwardly by the one conveyor member 2 and downwardly by the other conveyor member 3. The pitches of the conveyor members 2, 3 may be different such that the distance of the path that the products follow on the outer track conveyor member 3 is not automatically longer than the path that the products follow on the inner track conveyor member 2.
Fig. 7 shows an embodiment of the conveyor 1 of which the helical shapes of the inner and outer conveyor members 2, 3 have different helical orientations. As seen in a direction parallel to the longitudinal centre line 4 one of the conveyor members 2 has an anti-clockwise turning orientation whereas the other conveyor member 3 has a clockwise turning orientation. The helical shapes of the conveyor members 2, 3 of the embodiment as shown in Fig. 8 have the same orientations as those in Fig. 7, but in this case the inner and outer conveyor members 2, 3 are coupled to each other such that products follow the inner track conveyor member 2 upwardly and the outer track conveyor member 3 downwardly or in the opposite direction. In this case a single drivable conveyor belt may be applied whereas in the other embodiments as described hereinbefore separately drivable conveyor belts may be applied.
The inner and outer conveyor members 2, 3 may comprise conveyor belts or slats which are connected to a driven chain.
From the foregoing, it will be clear that the invention provides a conveyor comprising at least a drivable helically- shaped inner track conveyor member and a drivable helically- shaped outer track conveyor member of which the path lengths can be varied.
The invention is not limited to the embodiments shown in the drawings and described hereinbefore, which may be varied in different manners within the scope of the claims and their technical equivalents. It is possible, for example, that the cross section of the conveyor is not circular, but an alternative shape, for example elliptical. Furthermore, the embodiments as shown hereinbefore may be combined, for example variations in pitch, supporting frame structure or the like.
Claims
1. A conveyor (1) for conveying products, comprising at least a drivable helically-shaped inner track conveyor member (2) and a drivable helically-shaped outer track conveyor member (3) , wherein the outer track conveyor member (3) surrounds the inner track conveyor member (3) characterized in that the pitches (A, B) of the inner track conveyor member (2) and the outer track conveyor member (3) are different.
2. A conveyor (1) according to claim 1, wherein the pitch (B) of the outer track conveyor member (3) is larger than that of the inner track conveyor member (2) .
3. A conveyor (1) according to claim 2, wherein the pitches (A, B) of the inner and outer track conveyor members (2, 3) are selected such that the lengths along the paths of the inner and outer track conveyor members (2, 3) are substantially the same as measured between two parallel planes extending perpendicularly to a longitudinal centre line (4) of the conveyor (1) .
4. A conveyor (1) according to claim 1, wherein the inclination along the helical path of the inner track conveyor member (2) is substantially the same as that of the outer track conveyor member (3) .
5. A conveyor (1) according to one of the preceding claims, wherein the inner track conveyor member (2) and the outer track conveyor member (3) are supported by supporting members (9) which are fixed to at least a frame supporting element (8) extending substantially parallel to a longitudinal centre line (4) of the conveyor (1) and disposed between the inner and outer track conveyor members (2, 3) .
6. A conveyor (1) according to one of the preceding claims, wherein the helical shape of the inner track conveyor member (2) and/or the outer track conveyor member (3) has/have a clockwise turning or anti-clockwise turning orientation, as seen parallel to a longitudinal centre line (4) of the conveyor (1) .
7. A conveyor (1) according to one of the preceding claims, wherein the inner track conveyor member (2) and the outer track conveyor member (3) are coupled to each other such that products transported by the conveyor (1) are transported both along the path of the inner track conveyor member (2) and the outer track conveyor member (3) .
8. A conveyor (1) for conveying products, comprising at least a helically-shaped inner track conveyor member (2) and a helically-shaped outer track conveyor member (3) , the inner track conveyor member (2) being surrounded by the outer track conveyor member (3), wherein the inner and outer track conveyor members (2, 3) are drivable by driving means which follow the paths of the inner and outer track conveyor members (2, 3) , wherein the inner track conveyor member (2) and/or the outer track conveyor member (3) is/are both supported by at least a frame supporting element (8) extending substantially parallel to a longitudinal centre line (4) of the conveyor (1) and disposed between the inner and outer track conveyor members (2, 3) .
9. A conveyor (1) for conveying products, comprising at least a helically-shaped inner track conveyor member (2) and a helically-shaped outer track conveyor member (3) , the inner track conveyor member (2) being surrounded by the outer track conveyor member (3), wherein the inner and outer track conveyor members (2, 3) are drivable by driving means which follow the paths of the inner and outer track conveyor members (2, 3) , wherein the inner track conveyor member (2) is supported by at least a frame supporting element (8) extending substantially parallel to a longitudinal centre line (4) of the conveyor (1) and disposed at an inner circumferential side of the inner track conveyor member (2) .
10. A conveyor (1) for conveying products, comprising at least a helically-shaped inner track conveyor member (2) and a helically-shaped outer track conveyor member (3) , the inner track conveyor member (2) being surrounded by the outer track conveyor member (3), wherein the inner and outer track conveyor members (2, 3) are drivable by driving means which follow the paths of the inner and outer track conveyor members (2, 3), wherein the outer track conveyor member (2) is supported by at least a frame supporting element (8) extending substantially parallel to a longitudinal centre line (4) of the conveyor (1) and disposed at an outer circumferential side of the outer track conveyor member (3) .
11. A conveyor (1) according to claims 8 and 9, 8 and
10, 9 and 10, or 8, 9 and 10.
12. A conveyor (1) according to one of the claims 8-
11, wherein the frame supporting element (8) comprises a plurality of pillar-shaped elements extending substantially parallel to each other.
13. A conveyor (1) according to one of the preceding claims, wherein the inner track conveyor member (2) and the outer track conveyor member (3) are each drivable by a driving belt which follows the helical paths of the inner track conveyor member (2) and the outer track conveyor member (3) .
14. A conveyor (1) according to one of the preceding claims, wherein the conveyor (1) is adapted such that the inner track conveyor member (2) and the outer track conveyor member (3) are drivable in the same upward or downward direction of the helix.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/140,111 US8695785B2 (en) | 2008-10-10 | 2009-10-08 | Multi-track helical conveyor |
EP09740290.3A EP2349879B1 (en) | 2008-10-10 | 2009-10-08 | A multi-track helical conveyor |
US14/189,651 US9227783B2 (en) | 2008-10-10 | 2014-02-25 | Multi-track helical conveyor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2002078A NL2002078C (en) | 2008-10-10 | 2008-10-10 | A multi-track helical conveyor. |
NLN2002078 | 2008-10-10 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/140,111 A-371-Of-International US8695785B2 (en) | 2008-10-10 | 2009-10-08 | Multi-track helical conveyor |
US14/189,651 Continuation US9227783B2 (en) | 2008-10-10 | 2014-02-25 | Multi-track helical conveyor |
Publications (1)
Publication Number | Publication Date |
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WO2010040809A1 true WO2010040809A1 (en) | 2010-04-15 |
Family
ID=40473678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/063108 WO2010040809A1 (en) | 2008-10-10 | 2009-10-08 | A multi-track helical conveyor |
Country Status (4)
Country | Link |
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US (2) | US8695785B2 (en) |
EP (1) | EP2349879B1 (en) |
NL (1) | NL2002078C (en) |
WO (1) | WO2010040809A1 (en) |
Cited By (1)
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---|---|---|---|---|
US20210276798A1 (en) * | 2020-03-06 | 2021-09-09 | Berkshire Grey, Inc. | Systems and methods for providing order fulfillment using a spiral tower system |
Families Citing this family (7)
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NL2002078C (en) * | 2008-10-10 | 2010-04-13 | Specialty Conveyor Bv | A multi-track helical conveyor. |
CN102202988B (en) * | 2008-10-21 | 2013-07-31 | 莱特拉姆有限责任公司 | Spiral belt conveyor |
CA2773097A1 (en) * | 2009-09-04 | 2011-03-10 | Laitram, L.L.C. | Spiral conveyor system and methods |
ES2535278T3 (en) * | 2012-03-27 | 2015-05-07 | Specialty Conveyor B.V. | Conveyor |
DE202012104466U1 (en) * | 2012-11-19 | 2013-05-28 | Krones Ag | Device for providing molded parts in a beverage bottling plant |
ITVE20130016A1 (en) * | 2013-04-16 | 2014-10-17 | Tecno Pool Spa | FURNISHED COOKING PLANT FOR FOODS. |
US9884723B2 (en) | 2015-07-24 | 2018-02-06 | Ashworth Bros., Inc. | Spiral conveyor system |
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Also Published As
Publication number | Publication date |
---|---|
US8695785B2 (en) | 2014-04-15 |
NL2002078C (en) | 2010-04-13 |
US9227783B2 (en) | 2016-01-05 |
EP2349879A1 (en) | 2011-08-03 |
EP2349879B1 (en) | 2016-04-27 |
US20140174890A1 (en) | 2014-06-26 |
US20120043182A1 (en) | 2012-02-23 |
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