EP1374818B1 - Portable folding wheelchair - Google Patents
Portable folding wheelchair Download PDFInfo
- Publication number
- EP1374818B1 EP1374818B1 EP03005814A EP03005814A EP1374818B1 EP 1374818 B1 EP1374818 B1 EP 1374818B1 EP 03005814 A EP03005814 A EP 03005814A EP 03005814 A EP03005814 A EP 03005814A EP 1374818 B1 EP1374818 B1 EP 1374818B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- shaped
- sides
- pin
- shaped tube
- 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.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
- A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
- A61G5/0833—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding front to back, e.g. reducing or expanding the overall depth of the wheelchair
- A61G5/0841—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding front to back, e.g. reducing or expanding the overall depth of the wheelchair comprising a scissor-type frame, e.g. having pivoting cross bars for enabling folding
Definitions
- the invention relates to a rehabilitative wheelchair.
- the German utility model G 88 16 133.1 discloses foldable wheelchair which comprises four driving rollers that are affixed to two support frames which form an "X" in the unfolded state and are connected by a bolt.
- the two support frames support a seat frame which is covered by a canvas.
- the wheelchair further comprises a foldable backrest which comprises a backrest frame which is covered by a canvas.
- Most elements of the invention are pivotally coupled through pins and have anchor means for positioning and anchoring.
- anchor means for folding, first, collapse and fold the front U-shaped tube and the rear U-shaped tube in the forward and rearward direction, then turn the U-shaped foot pedal and the armrest upwards, and finally turn the U-shaped handle tube downwards to fold the whole wheelchair in a smaller size. Users can easily carry or put the folded wheelchair into a car through the handle located on the rear end of the seat canvas.
- the rear U-shaped tube and the upright tube are bridged by a sleeve on the upper ends thereof.
- the sleeve provides an interval between the rear U-shaped tube and the upright tube to facilitate folding of the wheelchair. It also gives the rear U-shaped tube an anchoring support after the wheelchair is extended (with the flap pressing the retaining pin) to ensure that the wheelchair may be folded neatly and also may be extended for use securely.
- the invention has a rope anchoring mechanism located between the U-shaped handle tube and the connection plates.
- the anchor pin When the wheelchair is extended, the anchor pin is wedged in the anchor hole to erect the backrest in the upright position.
- the U-shaped handle tube When the wheelchair is folding, pull the rope to remove the anchor pin from the anchor hole, the U-shaped handle tube may be turned downwards for folding. It is convenient to use.
- the invention further provides a U-shaped foot pedal on a lower section between the inner sides of the front U-shaped tube, and armrests on two sides of the U-shaped handle tube. Hence disabled people may sit on the portable folding wheelchair of the invention with great comfort as sitting on a rehabilitative wheelchair.
- the portable folding wheelchair of the invention includes a seat frame 1 and a backrest 2.
- the seat frame 1 includes a front U-shaped tube 3 and a rear U-shaped tube 4 coupling with each other in the middle section on two sides through a pin to form a X-shape from sideward.
- the front U-shaped tube 3 and the rear U-shaped tube 4 have respectively an upward opening.
- the rear U-shaped tube 4 has a lower end on two sides to couple with a rear wheel 5.
- the front U-shaped tube 3 has an upper end on two sides to fasten to a connection plate 6.
- the connection plate 6 connects to the backrest 2.
- the front U-shaped tube 3 has a lower section on two sides to pivotally engage with an upright tube 7.
- the upright tube 7 has a lower end coupling with a front wheel 8 which is the direction wheel.
- the upright tube 7 and the rear U-shaped tube 4 have their upper ends bridged by a sleeve 9.
- the sleeve 9 has a front end forming a notch 10.
- the upper end of the upright tube 7 is pivotally engaged with the notch 10 through a pin.
- the sleeve 9 has an opening 11 formed on a lower section in the longitudinal direction to allow the sleeve 9 to couple with the upper end of the rear U-shaped tube 4.
- the two lateral sides of the middle section of the sleeve 9 have respectively a slot 12 to couple with a bolt 13 to engage with the rear U-shaped tube 4.
- the outer side of the rear section of the sleeve 9 has a flap 14 extending outwards.
- the rear U-shaped tube 4 has a retaining pin 15 corresponding to the flap 14.
- the upper ends of the two upright tubes 7 are bridged by a front stretcher 16.
- the two connection plates 6 are bridged by a rear stretcher 17.
- the front stretcher 16 and the rear stretcher 17 are coupled with a seat canvas 18.
- the seat canvas 18 has a rear end with a handle 19 attached thereon.
- the backrest 2 includes a U-shaped handle tube 19 which has an opening directing downwards.
- the U-shaped handle tube 19 is coupled with a transverse backrest canvas 20.
- the U-shaped handle tube 19 has two sides each has a lower end pivotally engaging with the connection plate 6 through a pin.
- the U-shaped handle tube 19 further has an anchor pin 21 located on a lower section on two sides.
- the anchor pin 21 has a bigger head and screw threads formed on a rear section.
- the two anchor pins 21 are coupled respectively with a spring 22, then run through the U-shaped handle tube 19 from outside to fasten to two ends of a rope 23.
- the rope 23 has a steel core which is covered by a plastic tube on the outside.
- the connection plate 6 has an anchor hole 24 located above the pivotal connection point of the pin of the U-shaped handle tube 19.
- the head of the anchor pin 21 may be wedged in the anchor hole 24.
- the two sides of the U-shaped handle tube 19 further have respectively a U-shaped dock 25 which has an opening directly forwards.
- the U-shaped dock 25 has a lower section pivotally coupled with the U-shaped handle tube 19 through a pin.
- the U-shaped dock 25 has an outer side to anchor an armrest 26.
- the front U-shaped tube 3 has a lower section with inner sides to pivotally couple with a U-shaped foot pedal 27.
- the U-shaped foot pedal 27 has an opening directing rearwards.
- Most elements of the invention are pivotally coupled through pins and have anchor means for positioning and anchoring.
- anchor means for folding, first, collapse and fold the front U-shaped tube 3 and the rear U-shaped tube 4 in the forward and rearward direction, then turn the U-shaped foot pedal 27 and the armrest 26 upwards, and finally turn the U-shaped handle tube 19 downwards to fold the whole wheelchair in a smaller size. Users can easily carry or put the folded wheelchair into a car through the handle 28 located on the rear end of the seat canvas 18.
- the rear U-shaped tube 4 and the upright tube 7 are bridged by the sleeve 9 on the upper ends thereof.
- the sleeve 9 provides an interval between the rear U-shaped tube 4 and the upright tube 7 to facilitate folding of the wheelchair. It also gives the rear U-shaped tube 4 an anchoring support after the wheelchair is extended (with the flap pressing the retaining pin) to ensure that the wheelchair may be folded neatly and also may be extended for use securely.
- the invention has a rope anchoring mechanism located between the U-shaped handle tube 19 and the connection plates 6.
- the anchor pin 21 When the wheelchair is extended, the anchor pin 21 is wedged in the anchor hole 24 to erect the backrest 2 in the upright position.
- the U-shaped handle tube 19 When the wheelchair is folding, pull the rope 23 to remove the anchor pin 21 from the anchor hole 24, the U-shaped handle tube 19 may be turned downwards for folding. It is convenient to use.
- the invention provides a U-shaped foot pedal 27 on a lower section between the inner sides of the front U-shaped tube 3 and armrests 26 on two sides of the U-shaped handle tube 19. Hence disabled people may sit on the portable folding wheelchair of the invention with great comfort as sitting on a rehabilitative wheelchair.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Handcart (AREA)
- Rehabilitation Tools (AREA)
- Hybrid Cells (AREA)
Abstract
Description
- The invention relates to a rehabilitative wheelchair.
- With increasing advances of social welfare and people's living standards, more and more disabled people use rehabilitative wheelchairs. They offer great conveniences to the indoor and outdoor activities of the disabled people, and improve life quality of the disabled people. However, the wheelchairs now on the market are quite bulky. Although most of the wheelchairs have folding structures, they usually are for folding in the left and right directions. After folding, the size is still very big, and is not portable or difficult to carry with hands or by cars. It becomes a big constraint for the disabled people in travel or trip.
- The German utility model G 88 16 133.1 discloses foldable wheelchair which comprises four driving rollers that are affixed to two support frames which form an "X" in the unfolded state and are connected by a bolt. The two support frames support a seat frame which is covered by a canvas. The wheelchair further comprises a foldable backrest which comprises a backrest frame which is covered by a canvas.
- The object of the invention is to provide a portable folding wheelchair that may be carried easily with hands or by cars to enable disabled people to use the wheelchair conveniently in travels and trips anytime and anywhere.
- This object is achieved by the subject matter of claim 1.
- Preferred embodiments are the subject matters of the dependent claims.
- The invention provides the following advantages:
- Most elements of the invention are pivotally coupled through pins and have anchor means for positioning and anchoring. For folding, first, collapse and fold the front U-shaped tube and the rear U-shaped tube in the forward and rearward direction, then turn the U-shaped foot pedal and the armrest upwards, and finally turn the U-shaped handle tube downwards to fold the whole wheelchair in a smaller size. Users can easily carry or put the folded wheelchair into a car through the handle located on the rear end of the seat canvas.
- The rear U-shaped tube and the upright tube are bridged by a sleeve on the upper ends thereof. The sleeve provides an interval between the rear U-shaped tube and the upright tube to facilitate folding of the wheelchair. It also gives the rear U-shaped tube an anchoring support after the wheelchair is extended (with the flap pressing the retaining pin) to ensure that the wheelchair may be folded neatly and also may be extended for use securely.
- The invention has a rope anchoring mechanism located between the U-shaped handle tube and the connection plates. When the wheelchair is extended, the anchor pin is wedged in the anchor hole to erect the backrest in the upright position. When the wheelchair is folding, pull the rope to remove the anchor pin from the anchor hole, the U-shaped handle tube may be turned downwards for folding. It is convenient to use.
- The invention further provides a U-shaped foot pedal on a lower section between the inner sides of the front U-shaped tube, and armrests on two sides of the U-shaped handle tube. Hence disabled people may sit on the portable folding wheelchair of the invention with great comfort as sitting on a rehabilitative wheelchair.
- In the following, preferred embodiments will be described referring to the accompanying drawings:
- FIG.1 is a perspective view of the invention.
- FIG.2 is a schematic view of the invention after folding.
- FIG. 3 is an exploded view of the backrest of the invention.
- Referring to FIGS. 1, 2 and 3, the portable folding wheelchair of the invention includes a seat frame 1 and a
backrest 2. The seat frame 1 includes afront U-shaped tube 3 and arear U-shaped tube 4 coupling with each other in the middle section on two sides through a pin to form a X-shape from sideward. Thefront U-shaped tube 3 and therear U-shaped tube 4 have respectively an upward opening. Therear U-shaped tube 4 has a lower end on two sides to couple with arear wheel 5. The front U-shapedtube 3 has an upper end on two sides to fasten to aconnection plate 6. Theconnection plate 6 connects to thebackrest 2. The front U-shapedtube 3 has a lower section on two sides to pivotally engage with anupright tube 7. Theupright tube 7 has a lower end coupling with afront wheel 8 which is the direction wheel. Theupright tube 7 and therear U-shaped tube 4 have their upper ends bridged by asleeve 9. Thesleeve 9 has a front end forming anotch 10. The upper end of theupright tube 7 is pivotally engaged with thenotch 10 through a pin. Thesleeve 9 has an opening 11 formed on a lower section in the longitudinal direction to allow thesleeve 9 to couple with the upper end of therear U-shaped tube 4. The two lateral sides of the middle section of thesleeve 9 have respectively a slot 12 to couple with abolt 13 to engage with therear U-shaped tube 4. The outer side of the rear section of thesleeve 9 has a flap 14 extending outwards. Therear U-shaped tube 4 has a retaining pin 15 corresponding to the flap 14. The upper ends of the twoupright tubes 7 are bridged by afront stretcher 16. The twoconnection plates 6 are bridged by arear stretcher 17. Thefront stretcher 16 and therear stretcher 17 are coupled with aseat canvas 18. Theseat canvas 18 has a rear end with ahandle 19 attached thereon. Thebackrest 2 includes a U-shapedhandle tube 19 which has an opening directing downwards. The U-shapedhandle tube 19 is coupled with atransverse backrest canvas 20. The U-shapedhandle tube 19 has two sides each has a lower end pivotally engaging with theconnection plate 6 through a pin. The U-shapedhandle tube 19 further has ananchor pin 21 located on a lower section on two sides. Theanchor pin 21 has a bigger head and screw threads formed on a rear section. The twoanchor pins 21 are coupled respectively with aspring 22, then run through the U-shapedhandle tube 19 from outside to fasten to two ends of arope 23. Therope 23 has a steel core which is covered by a plastic tube on the outside. Theconnection plate 6 has ananchor hole 24 located above the pivotal connection point of the pin of the U-shapedhandle tube 19. The head of theanchor pin 21 may be wedged in theanchor hole 24. The two sides of the U-shapedhandle tube 19 further have respectively a U-shapeddock 25 which has an opening directly forwards. The U-shapeddock 25 has a lower section pivotally coupled with the U-shapedhandle tube 19 through a pin. The U-shapeddock 25 has an outer side to anchor anarmrest 26. The front U-shapedtube 3 has a lower section with inner sides to pivotally couple with aU-shaped foot pedal 27. The U-shapedfoot pedal 27 has an opening directing rearwards. - Most elements of the invention are pivotally coupled through pins and have anchor means for positioning and anchoring. For folding, first, collapse and fold the
front U-shaped tube 3 and therear U-shaped tube 4 in the forward and rearward direction, then turn the U-shapedfoot pedal 27 and thearmrest 26 upwards, and finally turn the U-shapedhandle tube 19 downwards to fold the whole wheelchair in a smaller size. Users can easily carry or put the folded wheelchair into a car through thehandle 28 located on the rear end of theseat canvas 18. - In addition, the rear
U-shaped tube 4 and theupright tube 7 are bridged by thesleeve 9 on the upper ends thereof. Thesleeve 9 provides an interval between the rearU-shaped tube 4 and theupright tube 7 to facilitate folding of the wheelchair. It also gives the rearU-shaped tube 4 an anchoring support after the wheelchair is extended (with the flap pressing the retaining pin) to ensure that the wheelchair may be folded neatly and also may be extended for use securely. - Moreover, the invention has a rope anchoring mechanism located between the
U-shaped handle tube 19 and theconnection plates 6. When the wheelchair is extended, theanchor pin 21 is wedged in theanchor hole 24 to erect thebackrest 2 in the upright position. When the wheelchair is folding, pull therope 23 to remove theanchor pin 21 from theanchor hole 24, theU-shaped handle tube 19 may be turned downwards for folding. It is convenient to use. - Furthermore, the invention provides a
U-shaped foot pedal 27 on a lower section between the inner sides of the frontU-shaped tube 3 andarmrests 26 on two sides of theU-shaped handle tube 19. Hence disabled people may sit on the portable folding wheelchair of the invention with great comfort as sitting on a rehabilitative wheelchair.
Claims (5)
- A portable folding wheelchair comprising a seat frame (1) and a backrest (2), wherein the seat frame (1) includes a front U-shaped tube (3) and a rear U-shaped tube (4) coupling with each other in a middle section on two sides through a pin to form a X-shape from sideward, the front U-shaped tube (3) and the rear U-shaped tube (4) having respectively an upward opening, the rear U-shaped tube having a lower end on two sides to couple with a rear wheel (5), the front U-shaped tube (3) having an upper end on two sides to fasten to a connection plate (6), the connection plate (6) connecting to the backrest (2), the portable folding wheelchair comprising a front wheel and a seat canvas (18),
characterized in that
the front U-shaped tube (3) has a lower section on two sides to pivotally engage with an upright tube (7), the upright tube (7) having a lower end coupling with the front wheel (8), the upright tube (7) and the rear U-shaped tube (4) having their upper ends bridged by a sleeve (9), the sleeve having a front end forming a notch (10), the upright tube (7) having an upper end pivotally engaging with the notch (10) through a pin, the sleeve (9) further having an opening formed on a lower section in the longitudinal direction to allow the sleeve (9) to couple with the upper end of the rear U-shaped tube (4), the sleeve having two lateral sides on a middle section to form respectively a slot (12) to couple with a bolt (13) to engage with the rear U-shaped tube (4), the sleeve further having a flap (14) extending outwards from an outer side on a rear section thereof, the rear U-shaped tube (4) having a retaining pin (15) corresponding to the flap (14), the upper ends of the two upright tubes being bridged by a front stretcher (16), the two connection plates being bridged by a rear stretcher (17), the front stretcher (16) and the rear stretcher (17) being coupled with the seat canvas (18). - The portable folding wheelchair of claim 1, wherein the backrest (2) includes a U-shaped handle tube (19) which has an opening directing downwards, the U-shaped handle tube (19) being coupled with a transverse backrest canvas (20), the U-shaped handle tube having two sides each has a lower end pivotally engaging with the connection plate (6) through a pin, the U-shaped handle tube further having an anchor pin (21) located on a lower section on two sides, the anchor pin (21) having a bigger head and screw threads formed on a rear section, the two anchor pins being coupled respectively with a spring (22) and running through the U-shaped handle tube (19) from outside to fasten to two ends of a rope (23), the connection plate having an anchor hole (24) located above the pivotal connection point of the pin of the U-shaped handle tube, the head of the anchor pin (21) being allowed to wedge in the anchor hole (24).
- The portable folding wheelchair of claim 1 or 2, wherein two sides of the U-shaped handle tube (19) are fastened respectively to a U-shaped dock (25) which has an opening directing forwards, the U-shaped dock (25) having a lower section pivotally coupled with the U-shaped handle tube through a pin, the U-shaped dock having an outer side to anchor an armrest (26).
- The portable folding wheelchair of one of claims 1 to 3, wherein the front U-shaped tube (3) has a lower section with inner sides pivotally coupling with a U-shaped foot pedal (27), the U-shaped foot pedal having an opening directing rearwards.
- The portable folding wheelchair of one of claims 1 to 4, wherein the seat canvas (18) has a rear end attaching to a handle (28).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN02262744U | 2002-06-28 | ||
CN02262744U CN2557121Y (en) | 2002-06-28 | 2002-06-28 | Portable folding wheelchair |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1374818A1 EP1374818A1 (en) | 2004-01-02 |
EP1374818B1 true EP1374818B1 (en) | 2006-11-29 |
Family
ID=4784161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03005814A Expired - Lifetime EP1374818B1 (en) | 2002-06-28 | 2003-03-14 | Portable folding wheelchair |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1374818B1 (en) |
CN (1) | CN2557121Y (en) |
AT (1) | ATE346577T1 (en) |
DE (1) | DE60309971T2 (en) |
ES (1) | ES2278086T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009155323A2 (en) * | 2008-06-17 | 2009-12-23 | Hanson Wayne H | Multifunctional foldable mobility base |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1297246C (en) * | 2004-04-23 | 2007-01-31 | 李茂顺 | Folding wheel chair with adjustable elevation angle |
DE102004036168A1 (en) * | 2004-07-26 | 2006-03-23 | Interco Gesellschaft Für Die Planung Und Den Vertrieb Von Reha Hilfen Mbh | Wheelchair frame |
CN106074028B (en) * | 2016-07-11 | 2018-03-20 | 浙江英洛华康复器材有限公司 | Foldable electric wheeled chair |
CN107137185A (en) * | 2017-05-31 | 2017-09-08 | 常州高尔登科技有限公司 | Folding wheel chair and its locking device |
CN107485495A (en) * | 2017-09-20 | 2017-12-19 | 安徽名之工业设计有限公司 | A kind of first-aid stretcher cart |
CN109464241A (en) * | 2018-11-05 | 2019-03-15 | 上海威之群机电制品有限公司 | A kind of lightweight wheelchair skeleton fold mechanism |
CN110302018B (en) * | 2019-05-08 | 2021-07-20 | 东莞威信运动用品有限公司 | Folding wheelchair frame |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB635530A (en) * | 1948-04-28 | 1950-04-12 | Evertaut Ltd | Improvements in folding or collapsible chairs or seats |
US2793681A (en) * | 1955-06-02 | 1957-05-28 | Colson Corp | Collapsible wheel chair |
DE8816133U1 (en) * | 1988-12-28 | 1989-04-20 | Gröning, Uwe, Dipl.-Ing. | wheelchair |
US5720525A (en) * | 1997-02-03 | 1998-02-24 | Excell, Inc. | Vehicle seat with anti-rattle arm rest |
JP3888661B2 (en) * | 2000-08-30 | 2007-03-07 | シナネン株式会社 | Portable wheelchair |
-
2002
- 2002-06-28 CN CN02262744U patent/CN2557121Y/en not_active Expired - Lifetime
-
2003
- 2003-03-14 EP EP03005814A patent/EP1374818B1/en not_active Expired - Lifetime
- 2003-03-14 AT AT03005814T patent/ATE346577T1/en not_active IP Right Cessation
- 2003-03-14 ES ES03005814T patent/ES2278086T3/en not_active Expired - Lifetime
- 2003-03-14 DE DE60309971T patent/DE60309971T2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009155323A2 (en) * | 2008-06-17 | 2009-12-23 | Hanson Wayne H | Multifunctional foldable mobility base |
WO2009155323A3 (en) * | 2008-06-17 | 2010-04-01 | Hanson Wayne H | Multifunctional foldable mobility base |
Also Published As
Publication number | Publication date |
---|---|
ES2278086T3 (en) | 2007-08-01 |
DE60309971T2 (en) | 2007-09-20 |
ATE346577T1 (en) | 2006-12-15 |
EP1374818A1 (en) | 2004-01-02 |
DE60309971D1 (en) | 2007-01-11 |
CN2557121Y (en) | 2003-06-25 |
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