EP2187855A1 - Wheelchair with anti-tip protection - Google Patents

Wheelchair with anti-tip protection

Info

Publication number
EP2187855A1
EP2187855A1 EP08793831A EP08793831A EP2187855A1 EP 2187855 A1 EP2187855 A1 EP 2187855A1 EP 08793831 A EP08793831 A EP 08793831A EP 08793831 A EP08793831 A EP 08793831A EP 2187855 A1 EP2187855 A1 EP 2187855A1
Authority
EP
European Patent Office
Prior art keywords
wheelchair
section
wheel
tip protection
frame
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.)
Granted
Application number
EP08793831A
Other languages
German (de)
French (fr)
Other versions
EP2187855B1 (en
EP2187855B8 (en
Inventor
Paul Hendrik Nijenhuis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ludgerus Beheer BV
Original Assignee
Ludgerus Beheer BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ludgerus Beheer BV filed Critical Ludgerus Beheer BV
Publication of EP2187855A1 publication Critical patent/EP2187855A1/en
Publication of EP2187855B1 publication Critical patent/EP2187855B1/en
Application granted granted Critical
Publication of EP2187855B8 publication Critical patent/EP2187855B8/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A61G5/10—Parts, details or accessories
    • 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
    • A61G5/10—Parts, details or accessories
    • A61G5/1089—Anti-tip devices
    • 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
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet

Definitions

  • the invention relates to a wheelchair provided with an anti-tip protection.
  • Wheelchairs can he or become unstable, for instance when a user moves over uneven terrain, rides over humps, thresholds or the like or, for instance, leans back heavily. A sitting or lying position of a user can also render a wheelchair somewhat unstable.
  • wheelchairs may be provided with an anti-tip protection.
  • an extra wheel may be provided centrally behind the wheelchair, which wheel can bear on the ground behind the rear wheels of the wheelchair when the wheelchair tips slightly backwards, thereby preventing the wheelchair from tipping over.
  • Such an anti-tip protection has as a drawback that it is not adjustable. This construction further requires modifications to the wheelchair which render the wheelchair less usable. The collapsibility may be hindered, the free space under the wheelchair can be limited and the like.
  • the object of the invention is to provide a wheelchair with an alternative anti-tip protection.
  • a farther object of the invention is to provide a wheelchair with an anti-tip protection with which at least one of the drawbacks of known wheelchairs is at least partly solved.
  • a wheelchair according to the invention comprises an anti-tip protection, wherein the anti-tip protection comprises at least one wheel borne by a section and the wheelchair comprises at least one frame tube, wherein the section and the frame tube can cooperate for setting the anti-tip protection by adjusting said wheel.
  • Adjustability of the at least one wheel can offer the advantage that the anti-tip protection can be adjusted to, for instance, a base on which the wheel chair is used, or the weight, the build or the sitting or lying position of the user. It can further offer the advantage that the wheelchair can be simple in construction and use.
  • a wheelchair can offer an anti-tip protection which comprises at least two wheels which are position-adjustable, preferably independently of each other.
  • Fig. 1 shows, in perspective view, an undercarriage of a wheelchair according to the invention
  • Fig. 2 shows, in side view, an undercarriage according to Fig. 1;
  • Fig. 3 shows, in top plan view, an undercarriage according to Fig. 1;
  • Fig. 4 shows a cross-sectional side view of an undercarriage according to Fig. 1, with partly cutaway frame tube;
  • Fig. 5 shows, in side view, a wheel chair with an undercarriage according to Fig. 1;
  • Fig. 6 shows, in side view, a portion of an undercarriage of a wheelchair with a bent front tube with footrest.
  • wheels of the anti-tip protection are understood to mean at least but not exclusively wheels with fixed or pivotable suspension, rollers, balls or gliding support means.
  • the embodiments shown have four wheels, two of which are large, manually drivable rear wheels and two of which are pivotable, small front wheels.
  • other configurations can also be utilized within the invention, such as with three wheels, electrically driven, provided with two large wheels at the front and one or two small wheels at the rear, or wheelchairs with three or four equally large or small wheels.
  • front or front side of the wheel chair will be understood to mean the side leading in the driving direction P, rear or rear side the side trailing in driving direction, side is understood to mean one or each side of the wheelchair, approximately parallel to the driving direction P.
  • the wheelchair In normal condition, the wheelchair will stand with wheels at the bottom side on a surface while at the top side a seat and/or back rest can be provided.
  • FIGs. 1 — 4 an undercarriage of a wheelchair 2 is shown, provided with two rear wheels 3 and two pivotable front wheels 4.
  • the rear wheels 3 are provided with a hoop 5 with which they can be manually driven for driving of the wheelchair by a person sitting or lying in the wheelchair.
  • the wheels 3, 4 are fastened to a frame 6 which is substantially formed from freely bent frame tubes from, for instance, aluminum, magnesium or a different metal or alloy, composite material or plastic.
  • the frame 6 comprises two bent frame tubes 7, one on each side 8.
  • Each of these frame tubes 7 comprises a rearmost part 9 and a foremost part 10.
  • the rearmost part 9 is fastened with an open rear end 11 in an axle bearing 12 in which an axle 13 such as, for instance, a dropout of a rear wheel 3 is fastened.
  • the rearmost part 9 extends, bent forwards and slightly upwards, preferably with a constant radius R. Via an intermediate bend 14, the rearmost part 9 is connected to the foremost part 10 which extends substantially downwards and somewhat forwards adjacent an open bottom end 15.
  • the two frame tubes 7 are substantially each others' mirror image, mirrored in a center plane, as shown in Fig 3 by the chain dotted line V-V, which extends halfway between the two frame tubes 7 at right angles to the ground G. Between the two axle bearings 12, a cross bar is provided. In the open ends 15, a footrest 22 is fastened.
  • the footrest 22 comprises a tube part with a middle part 23 and two upward bent ends 24, which ends 24 have been introduced into the open ends 15 and are fastened therein so as to be adjustable with second coupling means, for instance through pins, screws or bolts 25 introduced or screwed through the frame tube 7 and an opening in the respective end 24.
  • second coupling means for instance through pins, screws or bolts 25 introduced or screwed through the frame tube 7 and an opening in the respective end 24.
  • FIG.6 an alternative embodiment of an undercarriage 1 or at least an alternative embodiment of a footrest 22 is shown.
  • the foremost parts 10 of the frame tubes 7 are curved with a radius R2, as are the ends 24 of the tube 23 of the footrest 22.
  • the footrest 22 can be adjusted by sliding the ends 24 into or around the parts 10 and securing them in a desired position with the aid of the second coupling means 25.
  • the curvature R2 of the part 10 and the end 24 cooperating therewith with this displacement, the footrest will follow a curved line.
  • the forward and rearward displacement of the footrest will be limited with respect to use of a straight part 10 of the frame tube 7 and a corresponding end 24.
  • the footrest 22 will move more or less vertically over the displacement path Z, with only a particularly small horizontal displacement, while the part 10 allows for the bend 14 to be placed relatively far rearward.
  • the parts 9 and 10 can both lie in one plane or in different planes, wherein the or each plane can extend parallel to the plane V or can include an angle therewith, such that the respective planes intersect in a line parallel to the ground or including an angle therewith.
  • the two parts 10 can extend parallel to each other or, for instance, be bent towards each other, such that the ends 15 are brought together closer when they are slid downward or, conversely, further apart.
  • the tube 23 under the footrest 22 is preferably length-adjustable, for compensating the relative movement of the two ends 15 with respect to each other.
  • the two ends 9 can be slightly bent towards each other or, conversely, apart, such that upon movement of the wheels 31, they move together or apart. This can optionally be adjustable, so that a user himself can determine how the wheels 31 and/or the footrest 22 move(s) upon adjustment.
  • a second frame tube 18 is provided, which extends forwards from the respective axle bearing 12, with a substantially horizontal first part 19 and a downward bent second part 20.
  • Each second part 20 is open at the free bottom side 21.
  • a support 26 of a pivotable front wheel 4 is introduced and secured.
  • the top and bottom frame tubes are mutually connected by cross tubes 40.
  • a bent section 27 such as a tube section or rod is introduced, from the rear ends 11.
  • the bent section 27 has at least one part with a curve radius R which fits the curvature of said rearmost part 9.
  • the cross section of the section 27 is chosen such that this part is slideable in the rearmost part 9.
  • the end 28 of the section 27 located in the frame tube 7 is provided with a stop 29 which can serve as slide bearing.
  • the rearmost part 9 and the section 27 can be provided with fitting profiles such that the section 27 can indeed slide in the direction F in the rear part but cannot rotate therein.
  • a wheel 31 is provided, preferably with a fixed direction of rotation, matching the driving direction P.
  • a series of openings 32 is provided in the section P . Adjacent the end 11 of the rearmost part 9, a pin 33 is provided which is biased by a spring 34 in the direction of said openings 32. If the section 27 is moved with an opening 32 under the pin 33, the pin will engage in the opening and thus block movement of the section 27 with respect to the frame tube 7. By withdrawing the pin 33 against the action of the spring 34, sliding can be enabled again, so that the position of the wheels 31 can be changed. With this, an anti-tip protection 50 is provided with cooperating blocking means.
  • the frame of the wheelchair has an open design.
  • the space between the wheels and under the seat 35 is virtually completely free. This offers advantages to both the user and the assistant, for instance when pushing the wheelchair.
  • the wheels 31 can thus be set at different heights above the ground or, optionally, rest thereon. Backward tipping of the wheelchair will be prevented by the wheels 31.
  • they are mutually independently adjustable, each time the best setting can be selected. Furthermore, they can be pulled up adjacent the end 11, so that when, for instance, storing the wheelchair, they do not hinder the users when the rear wheels have been removed.
  • the radius R of the bent rearmost part 9 is preferably larger than that of the largest wheel 3, 4 of the wheelchair, in this case the rear wheel 3, for instance between one and a half times and eight times as large. In the exemplary embodiment shown, the radius R is approximately equal to the diameter of the respective rear wheel.
  • the advantage is achieved that the section 27 sliding from the frame tube 7 allows for the respective wheel 31 to move both rearward and downward, along the curvature, so that displacement of the wheel backwards will be lesser than if the section 27 and the rearmost part 9 of the frame tube 7 were straight.
  • the or each wheel 31 can remain completely or virtually within the contour C of the wheelchair, as drawn in Fig. 3.
  • the anti-tip protection can be provided in a frame tube with a part formed as the rearmost part 9 of the frame tube 7, in which a section 27 with wheel 31 is slideably included, once more in a curved manner.
  • This anti tip-protection can then be separately fastened to a frame of a wheelchair, instead of being integrated therein as shown in the Figures.
  • only one wheel 31 can be provided in an anti-tip protection.
  • the section 27 can be arranged at the outside of the frame tube 7.
  • the frame or at least the undercarriage can be completely or partly foldable and/or detachable, armrests, lower leg rests, headrests and the like can be provided, seat and/or backrest may be formed differently, for instance from flexible material, handles or a push bar can be provided, sections 27 of an anti-tip protection can be mutually coupled, the blocking means can be designed differently, for instance electrically operated, pneumatic, screw means, split pins or other means known to the skilled person.

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)

Abstract

A wheelchair provided with an anti-tip protection, wherein the anti- tip protection comprises at least one wheel borne by a section and the wheelchair comprises at least one frame tube, wherein the section and the frame tube can cooperate for setting the anti-tip protection by adjusting said wheel.

Description

Title: Wheelchair with anti-tip protection
The invention relates to a wheelchair provided with an anti-tip protection.
Wheelchairs can he or become unstable, for instance when a user moves over uneven terrain, rides over humps, thresholds or the like or, for instance, leans back heavily. A sitting or lying position of a user can also render a wheelchair somewhat unstable. In order to obviate this, or at least prevent the wheelchair from tipping backwards, wheelchairs may be provided with an anti-tip protection. To that end, an extra wheel may be provided centrally behind the wheelchair, which wheel can bear on the ground behind the rear wheels of the wheelchair when the wheelchair tips slightly backwards, thereby preventing the wheelchair from tipping over. Such an anti-tip protection has as a drawback that it is not adjustable. This construction further requires modifications to the wheelchair which render the wheelchair less usable. The collapsibility may be hindered, the free space under the wheelchair can be limited and the like.
The object of the invention is to provide a wheelchair with an alternative anti-tip protection.
A farther object of the invention is to provide a wheelchair with an anti-tip protection with which at least one of the drawbacks of known wheelchairs is at least partly solved.
In a first aspect, a wheelchair according to the invention comprises an anti-tip protection, wherein the anti-tip protection comprises at least one wheel borne by a section and the wheelchair comprises at least one frame tube, wherein the section and the frame tube can cooperate for setting the anti-tip protection by adjusting said wheel.
Adjustability of the at least one wheel can offer the advantage that the anti-tip protection can be adjusted to, for instance, a base on which the wheel chair is used, or the weight, the build or the sitting or lying position of the user. It can further offer the advantage that the wheelchair can be simple in construction and use.
In a second aspect, a wheelchair can offer an anti-tip protection which comprises at least two wheels which are position-adjustable, preferably independently of each other.
In clarification, exemplary embodiments of a wheelchair according to the invention will be discussed in further detail on the basis of the drawing. In the drawing:
Fig. 1 shows, in perspective view, an undercarriage of a wheelchair according to the invention;
Fig. 2 shows, in side view, an undercarriage according to Fig. 1;
Fig. 3 shows, in top plan view, an undercarriage according to Fig. 1;
Fig. 4 shows a cross-sectional side view of an undercarriage according to Fig. 1, with partly cutaway frame tube; Fig. 5 shows, in side view, a wheel chair with an undercarriage according to Fig. 1; and
Fig. 6 shows, in side view, a portion of an undercarriage of a wheelchair with a bent front tube with footrest.
In this description, identical or corresponding parts have identical or corresponding reference numerals. In the Figures, embodiments of a wheelchair are shown with an anti-tip protection with two wheels. However, it will be clear that a different number of wheels can be provided too, for instance only one. Also, other combinations of parts can be utilized. In this description, wheels of the anti-tip protection are understood to mean at least but not exclusively wheels with fixed or pivotable suspension, rollers, balls or gliding support means. The embodiments shown have four wheels, two of which are large, manually drivable rear wheels and two of which are pivotable, small front wheels. However, other configurations can also be utilized within the invention, such as with three wheels, electrically driven, provided with two large wheels at the front and one or two small wheels at the rear, or wheelchairs with three or four equally large or small wheels.
In this description, for the sake of simplification, use will be made of the normal driving direction of the wheelchair indicated in Fig. 1 by arrow P, wherein front or front side of the wheel chair will be understood to mean the side leading in the driving direction P, rear or rear side the side trailing in driving direction, side is understood to mean one or each side of the wheelchair, approximately parallel to the driving direction P. In normal condition, the wheelchair will stand with wheels at the bottom side on a surface while at the top side a seat and/or back rest can be provided.
In Figs. 1 — 4, an undercarriage of a wheelchair 2 is shown, provided with two rear wheels 3 and two pivotable front wheels 4. The rear wheels 3 are provided with a hoop 5 with which they can be manually driven for driving of the wheelchair by a person sitting or lying in the wheelchair. The wheels 3, 4 are fastened to a frame 6 which is substantially formed from freely bent frame tubes from, for instance, aluminum, magnesium or a different metal or alloy, composite material or plastic. The frame 6 comprises two bent frame tubes 7, one on each side 8. Each of these frame tubes 7 comprises a rearmost part 9 and a foremost part 10. The rearmost part 9 is fastened with an open rear end 11 in an axle bearing 12 in which an axle 13 such as, for instance, a dropout of a rear wheel 3 is fastened. From the rear end 11, the rearmost part 9 extends, bent forwards and slightly upwards, preferably with a constant radius R. Via an intermediate bend 14, the rearmost part 9 is connected to the foremost part 10 which extends substantially downwards and somewhat forwards adjacent an open bottom end 15. The two frame tubes 7 are substantially each others' mirror image, mirrored in a center plane, as shown in Fig 3 by the chain dotted line V-V, which extends halfway between the two frame tubes 7 at right angles to the ground G. Between the two axle bearings 12, a cross bar is provided. In the open ends 15, a footrest 22 is fastened. The footrest 22 comprises a tube part with a middle part 23 and two upward bent ends 24, which ends 24 have been introduced into the open ends 15 and are fastened therein so as to be adjustable with second coupling means, for instance through pins, screws or bolts 25 introduced or screwed through the frame tube 7 and an opening in the respective end 24. By providing such a series of openings one above the other, height-adjustment can be obtained.
In Fig.6, an alternative embodiment of an undercarriage 1 or at least an alternative embodiment of a footrest 22 is shown. Here, the foremost parts 10 of the frame tubes 7 are curved with a radius R2, as are the ends 24 of the tube 23 of the footrest 22. Once more, the footrest 22 can be adjusted by sliding the ends 24 into or around the parts 10 and securing them in a desired position with the aid of the second coupling means 25. Through the curvature R2 of the part 10 and the end 24 cooperating therewith, with this displacement, the footrest will follow a curved line. In the exemplary embodiment shown, the forward and rearward displacement of the footrest will be limited with respect to use of a straight part 10 of the frame tube 7 and a corresponding end 24. More in general, owing to the curvature R2, a more desired displacement of the footrest is obtained. In Fig. 6, the footrest 22 will move more or less vertically over the displacement path Z, with only a particularly small horizontal displacement, while the part 10 allows for the bend 14 to be placed relatively far rearward. As a result, a pleasant appearance, relatively much freedom of movement for the user and an advantageous construction are obtained. On each side 8, the parts 9 and 10 can both lie in one plane or in different planes, wherein the or each plane can extend parallel to the plane V or can include an angle therewith, such that the respective planes intersect in a line parallel to the ground or including an angle therewith. For instance, the two parts 10 can extend parallel to each other or, for instance, be bent towards each other, such that the ends 15 are brought together closer when they are slid downward or, conversely, further apart. Here, the tube 23 under the footrest 22 is preferably length-adjustable, for compensating the relative movement of the two ends 15 with respect to each other. In a comparable manner, the two ends 9 can be slightly bent towards each other or, conversely, apart, such that upon movement of the wheels 31, they move together or apart. This can optionally be adjustable, so that a user himself can determine how the wheels 31 and/or the footrest 22 move(s) upon adjustment.
Somewhat under the two frame tubes 7, on each side of the undercarriage 1, a second frame tube 18 is provided, which extends forwards from the respective axle bearing 12, with a substantially horizontal first part 19 and a downward bent second part 20. Each second part 20 is open at the free bottom side 21. Into each of these open ends, a support 26 of a pivotable front wheel 4 is introduced and secured. The top and bottom frame tubes are mutually connected by cross tubes 40. In each of the rearmost parts 9 of the two frame tubes 7, a bent section 27 such as a tube section or rod is introduced, from the rear ends 11. The bent section 27 has at least one part with a curve radius R which fits the curvature of said rearmost part 9. At least in this part, the cross section of the section 27 is chosen such that this part is slideable in the rearmost part 9. Preferably, the end 28 of the section 27 located in the frame tube 7 is provided with a stop 29 which can serve as slide bearing. The rearmost part 9 and the section 27 can be provided with fitting profiles such that the section 27 can indeed slide in the direction F in the rear part but cannot rotate therein. At the free end 30 of the section 27 a wheel 31 is provided, preferably with a fixed direction of rotation, matching the driving direction P.
In the section P a series of openings 32 is provided. Adjacent the end 11 of the rearmost part 9, a pin 33 is provided which is biased by a spring 34 in the direction of said openings 32. If the section 27 is moved with an opening 32 under the pin 33, the pin will engage in the opening and thus block movement of the section 27 with respect to the frame tube 7. By withdrawing the pin 33 against the action of the spring 34, sliding can be enabled again, so that the position of the wheels 31 can be changed. With this, an anti-tip protection 50 is provided with cooperating blocking means.
As is clearly visible in the Figures, the frame of the wheelchair has an open design. The space between the wheels and under the seat 35 is virtually completely free. This offers advantages to both the user and the assistant, for instance when pushing the wheelchair. The wheels 31 can thus be set at different heights above the ground or, optionally, rest thereon. Backward tipping of the wheelchair will be prevented by the wheels 31. As they are mutually independently adjustable, each time the best setting can be selected. Furthermore, they can be pulled up adjacent the end 11, so that when, for instance, storing the wheelchair, they do not hinder the users when the rear wheels have been removed. In Fig. 3, viewed in driving direction P at the right side, the wheel 31 of the anti-tip protection is pulled upwards adjacent the end 11, and, at the left hand side, for the most part slid out in an anti-tip position. In Fig. 2, these positions are visible in side view.
The radius R of the bent rearmost part 9 is preferably larger than that of the largest wheel 3, 4 of the wheelchair, in this case the rear wheel 3, for instance between one and a half times and eight times as large. In the exemplary embodiment shown, the radius R is approximately equal to the diameter of the respective rear wheel. Owing to the downward bent form, the advantage is achieved that the section 27 sliding from the frame tube 7 allows for the respective wheel 31 to move both rearward and downward, along the curvature, so that displacement of the wheel backwards will be lesser than if the section 27 and the rearmost part 9 of the frame tube 7 were straight. As a result, in top plan view, the or each wheel 31 can remain completely or virtually within the contour C of the wheelchair, as drawn in Fig. 3.
In an alternative embodiment, the anti-tip protection can be provided in a frame tube with a part formed as the rearmost part 9 of the frame tube 7, in which a section 27 with wheel 31 is slideably included, once more in a curved manner. This anti tip-protection can then be separately fastened to a frame of a wheelchair, instead of being integrated therein as shown in the Figures. Also, only one wheel 31 can be provided in an anti-tip protection. Further, the section 27 can be arranged at the outside of the frame tube 7.
The invention is not limited to the embodiments represented in the drawing and the description. Many variations thereon are possible within the framework of the invention as outlined by the claims. For instance, the frame or at least the undercarriage can be completely or partly foldable and/or detachable, armrests, lower leg rests, headrests and the like can be provided, seat and/or backrest may be formed differently, for instance from flexible material, handles or a push bar can be provided, sections 27 of an anti-tip protection can be mutually coupled, the blocking means can be designed differently, for instance electrically operated, pneumatic, screw means, split pins or other means known to the skilled person. These and may further variations, among which combinations of parts of the described embodiments, can be understood to be included in this description.

Claims

1. A wheelchair (2) provided with an anti-tip protection (50), wherein the anti-tip protection (50) comprises at least one wheel (31) borne by a section (27) and the wheelchair (2) comprises at least one frame tube (7), wherein the section (27) and the frame tube (7) can cooperate for setting the anti-tip protection (50) by adjusting said wheel (31).
2. A wheelchair according to claim 1, wherein said section (27) is slideable in or around said frame tube (7).
3. A wheelchair according to claim 1 or 2, wherein said frame tube (7) and said section (27) are bent, such that said section (27) is slideable in or around said frame tube (7) such that said wheel (31) travels a bent path upon adjustment of the anti tip protection (50).
4. A wheelchair according to any one of the preceding claims, wherein the wheelchair (2) comprises a frame (6) with at least two wheels (34), wherein said frame tube (7) bears at least one of the wheels (34).
5. A wheelchair according to any one of the preceding claims, wherein the frame tube (7) comprises a portion (9) with which said section (27) is connected, which portion (9) extends from adjacent a wheel axle (13) and said section (27) forms a lengthening of said frame tube (7) with, adjacent an end (30) remote from the frame tube, said wheel (31).
6. A wheelchair according to any one of the preceding claims, wherein the wheelchair (2) comprises two frame tubes (7), wherein in or around each of these frame tubes (7) a section (27) is provided which bears a wheel (31) which is adjustable for setting the anti-tip protection (50).
7. A wheelchair according to claim 6, wherein each of said frame tubes (7) extends on a side (8) of the wheelchair (2) and forms part of a frame (6) of the wheelchair.
8. A wheelchair according to any one of the preceding claims, wherein the or each frame tube (7) and the respective section (27) are provided with cooperating blocking means (32, 33), such that the or each section (27) can be secured in a number of positions with respect to the respective frame tube (7).
9. A wheelchair according to any one of the preceding claims, wherein the anti-tip protection (50) comprises at least two wheels (31), which wheels (31) are movable independently of each other.
10. A wheelchair according to any one of the preceding claims, wherein the at least one wheel (31) of the anti-tip protection (50) is movable immediately next to an end (11) of the respective frame tube (7).
EP08793831.2A 2007-08-10 2008-08-08 Wheelchair with anti-tip protection Not-in-force EP2187855B8 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1034243A NL1034243C2 (en) 2007-08-10 2007-08-10 Wheelchair with anti-tip protection.
PCT/NL2008/050539 WO2009022906A1 (en) 2007-08-10 2008-08-08 Wheelchair with anti-tip protection

Publications (3)

Publication Number Publication Date
EP2187855A1 true EP2187855A1 (en) 2010-05-26
EP2187855B1 EP2187855B1 (en) 2016-09-07
EP2187855B8 EP2187855B8 (en) 2016-11-02

Family

ID=39154212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08793831.2A Not-in-force EP2187855B8 (en) 2007-08-10 2008-08-08 Wheelchair with anti-tip protection

Country Status (3)

Country Link
EP (1) EP2187855B8 (en)
NL (1) NL1034243C2 (en)
WO (1) WO2009022906A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010046442A1 (en) * 2010-09-24 2012-03-29 Lutz Kadereit Folding wheelchair

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805925A (en) * 1982-11-16 1989-02-21 Invacare Corporation Adjustable rear wheel mounting assembly for wheelchairs
KR200403848Y1 (en) * 2005-07-29 2005-12-14 홍주표 Wheel chair having gear for rising and falling

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009022906A1 *

Also Published As

Publication number Publication date
NL1034243C2 (en) 2009-02-11
WO2009022906A1 (en) 2009-02-19
EP2187855B1 (en) 2016-09-07
EP2187855B8 (en) 2016-11-02

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