CA2035254A1 - Raisable curtain type goods-handling door which is prefabricated to simplify installation - Google Patents
Raisable curtain type goods-handling door which is prefabricated to simplify installationInfo
- Publication number
- CA2035254A1 CA2035254A1 CA 2035254 CA2035254A CA2035254A1 CA 2035254 A1 CA2035254 A1 CA 2035254A1 CA 2035254 CA2035254 CA 2035254 CA 2035254 A CA2035254 A CA 2035254A CA 2035254 A1 CA2035254 A1 CA 2035254A1
- Authority
- CA
- Canada
- Prior art keywords
- shaft
- uprights
- wind
- goods
- handling door
- 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.)
- Abandoned
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
- E06B9/0692—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising flexible sheets as closing screen
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/08—Roll-type closures
- E06B9/11—Roller shutters
- E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
- E06B9/174—Bearings specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/58—Guiding devices
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
A B S T R A C T
A raisable curtain type goods-handling door of the type including a wind-up shaft at its top and vertical side uprights forming or containing slideways for the edges of the curtain, said vertical uprights having their bottom ends fixed to the ground. On the same face as its slideway, the top end of each side upright includes a member such as a shaft stub for receiving and supporting the wind-up shaft in detachable manner, whereby the wind-up shaft prevents the top ends of the uprights from moving towards each other, and a member such as a spacer having strength in traction is tensioned between the top ends of the uprights to prevent them from moving apart.
A raisable curtain type goods-handling door of the type including a wind-up shaft at its top and vertical side uprights forming or containing slideways for the edges of the curtain, said vertical uprights having their bottom ends fixed to the ground. On the same face as its slideway, the top end of each side upright includes a member such as a shaft stub for receiving and supporting the wind-up shaft in detachable manner, whereby the wind-up shaft prevents the top ends of the uprights from moving towards each other, and a member such as a spacer having strength in traction is tensioned between the top ends of the uprights to prevent them from moving apart.
Description
2 5 ~
A RAISABLE CURTAIN TYPE GOODS-HANDLING DOOR WHICH IS
PREFABRICATED TO SIMPLIFY INSTALLATION
The present invention relates to a raisable curtain type goods-handling door and more particularly to a door which is prefabricated to simplify installation.
BACKGROUND OF THE INVENTION
Dcors of this type generally comprise a fram~ constituted by two vertical side uprights and a top cross-member. The side uprights support the cross-member and constitute or contain slideways for the edges of the curtain. They are fixed to the ground, thereby holding their bottom ends in place. The top cross-member serves to keep the top ends of the uprights properly spaced apart and also to house the mechanism. It encloses a wind-up shaft either for winding up the curtain itself if it is the curtain that is wound up or else for winding up lifting straps if the curtain folds up concertina-like at the top of the door. The top cross-member may also contain bearings for supporting said shaft, an electric motor, and accessories such as an end-of-stroke detector, automatic control means, etc.
An object of the present invention is to provide for simplified installation of such a door. In particular, an object of the invention is to rationalize the component parts thereof, to limit the number of such component parts, and to speed up erecting the door and getting it into operation.
SUMMARY OF THE INVENTION
The present invention provides a raisable curtain type goods-handling door of the type including a wind-up shaft at the top of the door and vertical side uprights forming or containing slideways for the edges of the curtain, said vertical uprights having their bottom ends fixed to the ground, wherein each side upright includes a member at its top end suitable for receiving and supporting the wind-up shaft in detachable manner. This enables the drive and transmission components to be housed in the uprights. Advantageously, the shaft is mounted so as to prevent the top ends of the uprights from moving towards each other, and a member having traction strength such as a spacer - -, - '' : , - :
:. ~ : ., - .
?
:- . . :, : : :. :
2 2u~ 32~
is tensioned between the top ends of the uprights to prevent them from moving apart. Since the mechanical components are housed in the uprights, the cross-member of the door frame is virtually eliminated.
Under these conditions, a door of the invention may be put into place, for example, by placing a side upright on either side of the door opening against the wall delimiting the opening. The wind-up shaft is then placed between the uprights to keep them apart. To do this, since each upright carries a shaft stub, the wind-up shaft must be engaged on both shaft stubs, one at each end. This can be done by having one of the shaft stubs displaceable so that it can be retracted into its upright so as to enable the wind-up shaft to be put into alignment with the shaft stub before inserting the stub into the shaft. The shaft stub provides a rotary connection and supports the shaft. One good way of performing this operation consists in providing a block in the top portion of each riser, the block containing mechanical components such as a gear box whose outlet shaft constitutes said shaft stub. The gear box is put into place temporarily without being screwed or bolted.
It can then be moved back when the shaft is brought up to it and then pushed forward so that the shaft stub engages in the wind-up shaft, and finally it can be screwed or bolted into its final position. The operation is very simple.
Each upright preferably includes a mechanical stepdown gear box having one side coupled to the wind-up shaft. The other side of the gear box is coupled in one of the uprights to an electric motor for rotating the wind-up shaft, while in the other upright said other side is connected to an end-of-stroke device for controlling motor stopping at the end of a curtain-raising or of a curtain-lowering operation (some end-of-stroke devices are capable of operating without a gear box, in which case there is no need to provide one).
~RIEF DESCRIPTION OF THE DRAWING
35 An embodiment of the invention is described by way of example with reference to the accompanying drawings, in which:
' , ' , ' ' ~. , ~ ~rl t~ 2 ~ l~
Figure 1 is an elevation view of an upright for a door of the invention and as seen from the other upright, this figure corresponding to a section on line I-I of Figure 2;
Figure 2 is a cross-section through the upright of Figure 1 on a line II-II of Figure l; and Figure 3 is an elevation view of the door showing the upright of Figure 1, i.e. as seen in a plane perpendicular to the plane of Figure 1~
DETAILED DESCRIPTION
The door of the invention comprises two vertical side uprights of symmetrical structure, each having a bottom end with means for fixing it to the ground and an opposite top end having a chest from which there extends a wind-up shaft connector. The chest on each upright contains a gear box, and in one of the uprights the chest also contains an electric motor while in the other upright the chest also contains an end-of-stroke device.
An opening 2 is formed in a wall 1, said opening being closed or left open by a raisable curtain type goods-handling door. The door is constituted by a flexible curtain reinforced at intervals by horizontal bars, and by two symmetrical uprights 3, only one of which is shown in the drawing. Each upright is constituted by a channel section metal bar which may be obtained by folding sheet metal. This shape makes for a strong upright and enables it to act as a slideway or to contain a slideway for the edges of the curtain and for the ends of the horizontal reinforcing bars of the curtain. The base of each upright is provided with a sole plate 4 which is suitably fixed to the ground, e.g. by bolts 5. The uprights may also be fixed to the wall 1 at any appropriate height as represented at 6.
The top of the curtain may be wound onto a shaft 7. In a variant, the shaft 7 may wind up straps 8 which are connected to the bottom reinforcing bar 9 of the curtain and which pass through guide rings 10 fixed to higher reinforcing bars 11.
Figure 3 merely shows a single strap without showing the curtain or its bars since this structure is well known. The .
,': , : ' -. :
.: ~ .
:: ~ - .
- ~ .: ':
4 ~ 2 ~ ~
curtain is hooked along its top edge to a curtain support bar 111, and it may be raised by allowing it to fold concertina-like at its top while the lifting straps 8 are being wound onto the shaft 7.
A mechanical block 13 is fixed on a suitable support element such as a plate 12 near the top of each upright, the mechanical block 13 containing a gear box having one side connected to a shaft stub 14 and having its other side connected to an electric motor 15 in one of the uprights and to an end-of-stroke device in the other upright.
The shaft 7 is engaged on the two shaft stubs 14 (in Figure 3 only one of them is shown, since the other one is symmetrical thereto). The connection between the shaft stub 4 and the shaft 7 serves to rotate the shaft and to support it.
The shaft 7 also serves to prevent the top ends of the uprights moving towards each other, which may appear excessive if the uprights are indeed fixed to the masonry of the wall. In any event it provides protection against subsidence, masonry moving, etc. ... . In accordance with the invention, to prevent the uprights from moving apart and to protect the shaft and the curtain, provision is also made for placing a spacer 20 in the form of a cover extending over the uprights from one to the other, which cover is fixed to the tops of the side uprights once they have been put into place. The spacer may also be used as a support to which the curtain is hooked (when the curtain itself is not wound up), particularly if a curtain having its corners fixed to the uprights is to close a relatively wide opening. This avoids the need for a curtain support bar. The spacer may be bolted or possibly welded to the side vertical uprights (where welding makes disassembly more difficult).
In order to install the wind-up shaft, one of its ends is fitted over one of the shaft stubs 14, and then, while not screwed in place, the gear box in the opposite upright is moved back over the plate 12 so that its shaft stub 14 is retracted into the upright, thereby enabling the corresponding end of the shaft 7 to be put into alignment therewith. Thereafter, via a 5 ~ ~ ~3 ~ C~ rj ~
window 21 provided in the upright 3, the gear box is pushed forwards to engage its shaft stub in the end of the wind-up shaft 7, after which the gear box is screwed or bolted into place via the window.
Each upright may also include electronic components for controlling the motor, proximity detector circuits with automatic controls, etc. being fixed either in the upright or beneath the plate for supporting the gear box It can be seen that transporting and installing the door are considerably simplified. The individual uprights, the spacer, the wind-up shaft and the wound curtain are transported as separate items to the site. Assembly consists in erecting the two uprights and in fixing them in place. The mechanical components are housed inside the uprights. There is no cross-member between them other than the shaft and the cover-spacer.
Everything else is quick and simple.
The wind-up shaft can be installed or removed by unscrewing one or other of the two gear boxes, depending on which is the easier on site, since advantageously both uprights are of analogous structure, each having a gear box support and a windo~.
.
A RAISABLE CURTAIN TYPE GOODS-HANDLING DOOR WHICH IS
PREFABRICATED TO SIMPLIFY INSTALLATION
The present invention relates to a raisable curtain type goods-handling door and more particularly to a door which is prefabricated to simplify installation.
BACKGROUND OF THE INVENTION
Dcors of this type generally comprise a fram~ constituted by two vertical side uprights and a top cross-member. The side uprights support the cross-member and constitute or contain slideways for the edges of the curtain. They are fixed to the ground, thereby holding their bottom ends in place. The top cross-member serves to keep the top ends of the uprights properly spaced apart and also to house the mechanism. It encloses a wind-up shaft either for winding up the curtain itself if it is the curtain that is wound up or else for winding up lifting straps if the curtain folds up concertina-like at the top of the door. The top cross-member may also contain bearings for supporting said shaft, an electric motor, and accessories such as an end-of-stroke detector, automatic control means, etc.
An object of the present invention is to provide for simplified installation of such a door. In particular, an object of the invention is to rationalize the component parts thereof, to limit the number of such component parts, and to speed up erecting the door and getting it into operation.
SUMMARY OF THE INVENTION
The present invention provides a raisable curtain type goods-handling door of the type including a wind-up shaft at the top of the door and vertical side uprights forming or containing slideways for the edges of the curtain, said vertical uprights having their bottom ends fixed to the ground, wherein each side upright includes a member at its top end suitable for receiving and supporting the wind-up shaft in detachable manner. This enables the drive and transmission components to be housed in the uprights. Advantageously, the shaft is mounted so as to prevent the top ends of the uprights from moving towards each other, and a member having traction strength such as a spacer - -, - '' : , - :
:. ~ : ., - .
?
:- . . :, : : :. :
2 2u~ 32~
is tensioned between the top ends of the uprights to prevent them from moving apart. Since the mechanical components are housed in the uprights, the cross-member of the door frame is virtually eliminated.
Under these conditions, a door of the invention may be put into place, for example, by placing a side upright on either side of the door opening against the wall delimiting the opening. The wind-up shaft is then placed between the uprights to keep them apart. To do this, since each upright carries a shaft stub, the wind-up shaft must be engaged on both shaft stubs, one at each end. This can be done by having one of the shaft stubs displaceable so that it can be retracted into its upright so as to enable the wind-up shaft to be put into alignment with the shaft stub before inserting the stub into the shaft. The shaft stub provides a rotary connection and supports the shaft. One good way of performing this operation consists in providing a block in the top portion of each riser, the block containing mechanical components such as a gear box whose outlet shaft constitutes said shaft stub. The gear box is put into place temporarily without being screwed or bolted.
It can then be moved back when the shaft is brought up to it and then pushed forward so that the shaft stub engages in the wind-up shaft, and finally it can be screwed or bolted into its final position. The operation is very simple.
Each upright preferably includes a mechanical stepdown gear box having one side coupled to the wind-up shaft. The other side of the gear box is coupled in one of the uprights to an electric motor for rotating the wind-up shaft, while in the other upright said other side is connected to an end-of-stroke device for controlling motor stopping at the end of a curtain-raising or of a curtain-lowering operation (some end-of-stroke devices are capable of operating without a gear box, in which case there is no need to provide one).
~RIEF DESCRIPTION OF THE DRAWING
35 An embodiment of the invention is described by way of example with reference to the accompanying drawings, in which:
' , ' , ' ' ~. , ~ ~rl t~ 2 ~ l~
Figure 1 is an elevation view of an upright for a door of the invention and as seen from the other upright, this figure corresponding to a section on line I-I of Figure 2;
Figure 2 is a cross-section through the upright of Figure 1 on a line II-II of Figure l; and Figure 3 is an elevation view of the door showing the upright of Figure 1, i.e. as seen in a plane perpendicular to the plane of Figure 1~
DETAILED DESCRIPTION
The door of the invention comprises two vertical side uprights of symmetrical structure, each having a bottom end with means for fixing it to the ground and an opposite top end having a chest from which there extends a wind-up shaft connector. The chest on each upright contains a gear box, and in one of the uprights the chest also contains an electric motor while in the other upright the chest also contains an end-of-stroke device.
An opening 2 is formed in a wall 1, said opening being closed or left open by a raisable curtain type goods-handling door. The door is constituted by a flexible curtain reinforced at intervals by horizontal bars, and by two symmetrical uprights 3, only one of which is shown in the drawing. Each upright is constituted by a channel section metal bar which may be obtained by folding sheet metal. This shape makes for a strong upright and enables it to act as a slideway or to contain a slideway for the edges of the curtain and for the ends of the horizontal reinforcing bars of the curtain. The base of each upright is provided with a sole plate 4 which is suitably fixed to the ground, e.g. by bolts 5. The uprights may also be fixed to the wall 1 at any appropriate height as represented at 6.
The top of the curtain may be wound onto a shaft 7. In a variant, the shaft 7 may wind up straps 8 which are connected to the bottom reinforcing bar 9 of the curtain and which pass through guide rings 10 fixed to higher reinforcing bars 11.
Figure 3 merely shows a single strap without showing the curtain or its bars since this structure is well known. The .
,': , : ' -. :
.: ~ .
:: ~ - .
- ~ .: ':
4 ~ 2 ~ ~
curtain is hooked along its top edge to a curtain support bar 111, and it may be raised by allowing it to fold concertina-like at its top while the lifting straps 8 are being wound onto the shaft 7.
A mechanical block 13 is fixed on a suitable support element such as a plate 12 near the top of each upright, the mechanical block 13 containing a gear box having one side connected to a shaft stub 14 and having its other side connected to an electric motor 15 in one of the uprights and to an end-of-stroke device in the other upright.
The shaft 7 is engaged on the two shaft stubs 14 (in Figure 3 only one of them is shown, since the other one is symmetrical thereto). The connection between the shaft stub 4 and the shaft 7 serves to rotate the shaft and to support it.
The shaft 7 also serves to prevent the top ends of the uprights moving towards each other, which may appear excessive if the uprights are indeed fixed to the masonry of the wall. In any event it provides protection against subsidence, masonry moving, etc. ... . In accordance with the invention, to prevent the uprights from moving apart and to protect the shaft and the curtain, provision is also made for placing a spacer 20 in the form of a cover extending over the uprights from one to the other, which cover is fixed to the tops of the side uprights once they have been put into place. The spacer may also be used as a support to which the curtain is hooked (when the curtain itself is not wound up), particularly if a curtain having its corners fixed to the uprights is to close a relatively wide opening. This avoids the need for a curtain support bar. The spacer may be bolted or possibly welded to the side vertical uprights (where welding makes disassembly more difficult).
In order to install the wind-up shaft, one of its ends is fitted over one of the shaft stubs 14, and then, while not screwed in place, the gear box in the opposite upright is moved back over the plate 12 so that its shaft stub 14 is retracted into the upright, thereby enabling the corresponding end of the shaft 7 to be put into alignment therewith. Thereafter, via a 5 ~ ~ ~3 ~ C~ rj ~
window 21 provided in the upright 3, the gear box is pushed forwards to engage its shaft stub in the end of the wind-up shaft 7, after which the gear box is screwed or bolted into place via the window.
Each upright may also include electronic components for controlling the motor, proximity detector circuits with automatic controls, etc. being fixed either in the upright or beneath the plate for supporting the gear box It can be seen that transporting and installing the door are considerably simplified. The individual uprights, the spacer, the wind-up shaft and the wound curtain are transported as separate items to the site. Assembly consists in erecting the two uprights and in fixing them in place. The mechanical components are housed inside the uprights. There is no cross-member between them other than the shaft and the cover-spacer.
Everything else is quick and simple.
The wind-up shaft can be installed or removed by unscrewing one or other of the two gear boxes, depending on which is the easier on site, since advantageously both uprights are of analogous structure, each having a gear box support and a windo~.
.
Claims (8)
1/ A raisable curtain type goods-handling door of the type including a wind-up shaft at the top of the door and vertical side uprights forming or containing slideways for the edges of the curtain, said vertical uprights having their bottom ends fixed to the ground, wherein each side upright includes a member at its top end suitable for receiving and supporting the wind-up shaft in detachable manner, with the drive and transmission components being housed in the uprights.
2/ A goods-handling door according to claim 1, wherein the shaft is mounted so as to prevent the top ends of the uprights from moving towards each other, and wherein a member having traction strength such as a spacer is tensioned between the top ends of the uprights to prevent them from moving apart.
3/ A goods-handling door according to claim 2, wherein the member having traction strength is a metal cover which protects the wind-up shaft therebeneath from dust, water, and objects falling onto it.
4/ A goods-handling door according to claim 1, wherein one of the uprights includes a speed-reducing gear box and an electric motor.
5/ A goods-handling door according to claim 1, wherein one of the uprights includes an end-of-stroke device optionally associated with a speed-reducing gear box.
6/ A goods-handling door according to claim 1, wherein at least one of the support members of the wind-up shaft is displaceable to enable the shaft to be installed without there being any need to move the upright.
7/ A goods-handling door according to claim 6, wherein the upright includes a window making it possible to act on the displaceable member for the purpose of retracting it to enable the wind-up shaft to be put into place.
8/ A goods-handling door according to claim 6, wherein at least one of the uprights includes a support element near the top thereof on which a speed-reducing gear box having an outlet shaft stub can be displaced, thereby enabling the gear box to be retracted with the shaft stub while bringing the wind-up shaft into alignment therewith, and enabling the gear box to be pushed back again to engage the shaft stub in the wind-up shaft, after which the gear box is fixed in position.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9001245A FR2657917B1 (en) | 1990-02-02 | 1990-02-02 | PREFABRICATED HANDLING DOOR WITH LIFT CURTAIN FOR SIMPLIFIED PLACEMENT. |
FR90-01245 | 1990-02-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2035254A1 true CA2035254A1 (en) | 1991-08-03 |
Family
ID=9393352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2035254 Abandoned CA2035254A1 (en) | 1990-02-02 | 1991-01-30 | Raisable curtain type goods-handling door which is prefabricated to simplify installation |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0440546A1 (en) |
JP (1) | JPH04213688A (en) |
CA (1) | CA2035254A1 (en) |
FR (1) | FR2657917B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3759494A (en) * | 1971-07-21 | 1973-09-18 | L Axelrod | Valve plate of column still |
CN1818032A (en) * | 2006-03-06 | 2006-08-16 | 沈阳东方钢铁有限公司 | Production of high-hydrogen content gas with high pressure |
US7913711B2 (en) | 2008-07-28 | 2011-03-29 | Shelterlogic Llc | Door assembly for use in a shelter and a shelter including same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2588038B1 (en) * | 1985-09-30 | 1987-12-24 | Griesser | DEVICE FOR FIXING TO THE SLEEPING CHASSIS OF A WINDOW A CASE CARRYING THE COMPLETE MECHANISM OF A ROLLABLE BLIND OR A ROLLING SHUTTER |
US4782887A (en) * | 1986-04-15 | 1988-11-08 | Byrne & Davidson Doors (N.S.W.) Pty. Limited | Rolling door drive assembly |
CA1286591C (en) * | 1987-12-18 | 1991-07-23 | Douglas B. Taylor | Apparatus for opening and closing roll-up door |
-
1990
- 1990-02-02 FR FR9001245A patent/FR2657917B1/en not_active Expired - Lifetime
-
1991
- 1991-01-29 EP EP91400197A patent/EP0440546A1/en not_active Withdrawn
- 1991-01-30 CA CA 2035254 patent/CA2035254A1/en not_active Abandoned
- 1991-02-01 JP JP3235191A patent/JPH04213688A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP0440546A1 (en) | 1991-08-07 |
FR2657917A1 (en) | 1991-08-09 |
FR2657917B1 (en) | 1992-04-24 |
JPH04213688A (en) | 1992-08-04 |
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Legal Events
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