EP2826453A1 - Rollstuhl für Sport - Google Patents

Rollstuhl für Sport Download PDF

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Publication number
EP2826453A1
EP2826453A1 EP14177501.5A EP14177501A EP2826453A1 EP 2826453 A1 EP2826453 A1 EP 2826453A1 EP 14177501 A EP14177501 A EP 14177501A EP 2826453 A1 EP2826453 A1 EP 2826453A1
Authority
EP
European Patent Office
Prior art keywords
wheelchair
seat
sports
hub
central cross
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.)
Withdrawn
Application number
EP14177501.5A
Other languages
English (en)
French (fr)
Inventor
Costantino Perna
Massimo Maida
Giuseppe Inghilterra
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.)
LAB 311 Sas
Original Assignee
LAB 311 Sas
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 LAB 311 Sas filed Critical LAB 311 Sas
Publication of EP2826453A1 publication Critical patent/EP2826453A1/de
Withdrawn legal-status Critical Current

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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
    • A61G5/10—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
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1059—Arrangements for adjusting the seat adjusting the height of the seat
    • 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
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards
    • 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
    • A61G5/1097—Camber- or toe-adjusting means for the drive wheels

Definitions

  • the present invention relates, in general, to a wheelchair for sports, adapted to be used for sports requiring the use of a manually self-propelled wheelchair, such as tennis and basketball.
  • the present invention relates to a manually self-propelled wheelchair for sports provided with anti-tip wheels.
  • the wheels of known wheelchairs for sports are mounted with a camber angle fixed with respect to a plane perpendicular to the support plane, in order to provide better maneuverability.
  • a first problem concerns the difficulty of adaptation and adjustment of the components of the wheelchair to the needs and to the physical characteristics of the user, and in particular they do not allow an easy adaptation to different users that share the use of the same wheelchair for practicing sports nor adaptation to the user's changing needs, which vary with his/her physical preparation and with the improvement of his/her sport skills.
  • a second problem is that the possible adjustments on known wheelchairs require complex interventions and cannot be made quickly on the playing field, but have to be made in a workshop.
  • a further problem of known wheelchairs consists in the fact that in order to maintain good traction of the wheels on the ground, the anti-tip wheels must be kept away from the ground, thus causing a pronounced pitching of the wheelchair while pushing.
  • Another object is to have a wheelchair that allows easy adjustment of its components, to be performed in a short time and without the need for specific tools, unlike the solutions adopted in the prior art.
  • a wheelchair for sports 10 comprises a central cross-beam 12, a first wheel 14 having a first hub 13 connected to a first end of the central cross-beam 12 and a second wheel 16 having a second hub 15 connected to a second end of the central cross-beam 12.
  • the wheelchair 10 of the invention further comprises a seat post 22 having a first end connected to a seat 21 and the opposite end connected, for example by welding, to an anti-tip wheels assembly 31.
  • the seat post 22 is slidably connected to the central cross-beam 12; preferably the seat post 22 is connected to the central cross-beam 12 by means of sliding guides, for adjusting the distance of the anti-tip wheels assembly 31 from the ground.
  • a seat within which the seat post 22 slides; preferably the seat post 22 is adapted to be locked to the central cross-beam 12 by known locking means 32, for example by quick release means, that are for example inserted in slots and holes formed in the seat post 22 and in the central cross-beam 12.
  • the anti-tip wheels assembly 31 comprises a first arm 35, a second arm 36 and at least two anti-tip wheels 33, each wheel being connected to the first arm 35 and to the second arm 36 through resilient means 37.
  • the arms 35 and 36 are made in a known manner of metal, for example aluminum, steel, titanium alloy, or even carbon fiber, so as to have a rigid structure.
  • the resilient means 37 consisting, for example, of leaf springs, are adapted to keep the anti-tip wheels 33 in contact with the ground during the moving of the wheelchair, compensating the variations in distance between the anti-tip wheels assemblies 31 and the ground that occur when pushing the wheelchair.
  • the anti-tip wheels assembly 31 comprises three arms, each arm being connected to an anti-tip wheel 33 through the resilient means 37; in a further embodiment of the wheelchair 10 of the invention the anti-tip wheels assembly 31 comprises four arms, each arm being connected to an anti-tip wheel 33 through the resilient means 37.
  • the seat 21 is slidably mounted on the seat post 22; according to an embodiment of the invention the seat 21 is connected to an inner post 23 which in turn is slidably mounted with respect to the seat post 22, for example, is slidably mounted inside the seat post 22.
  • the seat 21 is rotatably connected with respect to the inner post 23 by means of a first pivot 25, and is adapted to rotate about the axis of the first pivot 25 for varying its inclination; the axis of the first pivot 25 has a direction substantially perpendicular to the inner post 23 and substantially parallel to the central cross-beam 12.
  • the seat 21 is adapted to be locked to the inner post 23 with the desired inclination, for example up to thirty degrees, by known locking means 32, for example by quick release means, inserted for example in slots and holes formed in the seat 21, or in a plate connected to it, and in the inner post 23.
  • the seat of the wheelchair of the invention comprises a seat base 28 and a backrest 29 that can rotate with respect to the seat base; in a preferred manner the seat base can be inclined up to thirty degrees, and the inclination of the backrest 29 can vary by an angle between 70 and 90 degrees with respect to the seat base 28.
  • the seat base of the seat 21 is slidably adjustable with respect to the post, in particular on a plane perpendicular or transverse to the post; for example, the seat 28 is adapted to slide with respect to a plate fixed to the seat post 22 or fixed to the inner post 23, and fixed by the locking means 32 or other known means inserted in holes formed in the seat and in the seat post 22 or in the inner post 23.
  • the seat post 22 and the inner post 23 are constituted by a tube or a metal section, for example an extruded piece of aluminum, steel, or titanium alloy, or it can also be made of carbon fiber or other materials suitable to reduce its weight.
  • the wheels 14, 16 of the wheelchair for sports 10 of the invention are manually self-propelled wheels of the known type, and preferably have the camber angle, that is the inclination angle, and the distance between their hubs 13, 15, adjustable.
  • the first hub 13 and the second hub 15 are rotatably connected to the central cross-beam 12, and are adapted to rotate about a pin perpendicular to the axis of the wheel, so as to allow a variation of the inclination angle of the wheel hub 13, 15 with respect to the central cross-beam 12.
  • the first hub 13 and the second hub 15 are fork hubs, and the variation of the inclination angle of the hub is obtained by means of a plurality of reference holes which are formed in the hubs and in the central cross-beam and in which there are inserted known locking means 32, for example quick release means adapted to allow the adjustment of the inclination angle to a plurality of predefined values, by locking the rotation of the hub with respect to the cross-beam.
  • the camber angle can be varied between 10 and 30 degrees; more preferably from 14 to 24 degrees.
  • the central cross-beam 12 has two movable ends; in particular a first movable cross-beam 18 and a second movable cross-beam 19 are slidably connected, for example on known guides, each at one end of the central cross-beam 12, and are adapted to adjust the distance between the first wheel 14 and the second wheel 16, allowing its adjustment.
  • the adjustment of the position of the movable cross-beams 18, 19 with respect to the central cross-beam 12 is obtained by means of a plurality of reference holes or slots which are formed in the movable cross-beams 18, 19 and in the central cross-beam and in which there are inserted the known locking means 32, for example quick release means adapted to lock the sliding of the movable cross-beams with respect to the central cross-beam 12.
  • the wheelchair 10 of the invention comprises a platform 26 for supporting the user's feet, with height and angle adjustable in a known manner, for example through the quick release means 32.
  • the operation of the wheelchair for sports 10 of the invention is the following.
  • a first adjustment of the wheelchair of the invention is the adjustment of the distance of the anti-tip wheels assembly 31 from the ground, which is realized by sliding the seat post 22 with respect to the central cross-beam 12 and locking it at the desired height, by means of the known locking means 32, for example the quick release means.
  • the wheelchair of the invention allows to adjust the distance of the anti-tip wheels assembly 31 from the ground so that the anti-tip wheels 33 are always in contact with the ground when the user is pushing the wheels 14, 16.
  • the anti-tip wheels 33 remain in contact with the ground thanks to the presence of the resilient means 37, in particular when these are constituted by leaf springs, even in the presence of pitching of the wheelchair 10 and of the anti-tip wheels assembly 31, which is absorbed by the resilient means 37.
  • the width obtainable for the camber angle of the wheels obtainable is greater in the embodiment of the invention in which there are the first movable cross-beam 18 and the second movable cross-beam 19.
  • the presence of a plurality of adjustable elements in the wheelchair 10 of the invention allows to adapt the wheelchair 10 to the needs of the individual user, while also allowing to share the use of a wheelchair for sports practice by different users or to adapt it to changes in the playing style and ability of a user.
  • the presence of the quick release means allows to adjust the wheelchair of the invention quickly "on the field” at user-level, without the need to use any equipment or tools.
  • the wheelchair for sports 10 of the invention advantageously allows to eliminate or strongly reduce the pitching of the wheelchair while pushing, without decreasing the traction of the wheels.

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)
  • Compositions Of Oxide Ceramics (AREA)
  • Materials For Medical Uses (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP14177501.5A 2013-07-19 2014-07-17 Rollstuhl für Sport Withdrawn EP2826453A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000613A ITTO20130613A1 (it) 2013-07-19 2013-07-19 Carrozzina per attività sportive

Publications (1)

Publication Number Publication Date
EP2826453A1 true EP2826453A1 (de) 2015-01-21

Family

ID=49226410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14177501.5A Withdrawn EP2826453A1 (de) 2013-07-19 2014-07-17 Rollstuhl für Sport

Country Status (2)

Country Link
EP (1) EP2826453A1 (de)
IT (1) ITTO20130613A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800004946A1 (it) * 2018-04-27 2018-07-27 Gruppo ruote per un dispositivo a spinta manuale e dispositivo comprendente tale gruppo ruote
IT202100000260A1 (it) * 2021-01-08 2021-04-08 Lab 3 11 S R L Carrozzina comprendente un sistema di bloccaggio
US11311435B2 (en) 2017-05-02 2022-04-26 Dimitre Petkov DIMITROV Frame for utilization with components of wheelchair
FR3115979A1 (fr) * 2020-11-10 2022-05-13 Gilles DESCAMPS Fauteuil roulant comprenant un dispositif d’inclinaison de roues

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166631A (en) * 1977-10-19 1979-09-04 Sanaski David E Sports wheelchair
US5333894A (en) * 1993-05-17 1994-08-02 Douglas Mayes Wheel mounting apparatus for wheelchairs
EP0867165A1 (de) * 1994-12-28 1998-09-30 Sunrise Medical HHG Inc. Rollstuhl
US20070216131A1 (en) * 2006-03-14 2007-09-20 Revab B.V. Office chair
WO2010017644A1 (en) * 2008-08-15 2010-02-18 Rogue Wheels Inc. Modular and/or configurable wheelchair apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166631A (en) * 1977-10-19 1979-09-04 Sanaski David E Sports wheelchair
US5333894A (en) * 1993-05-17 1994-08-02 Douglas Mayes Wheel mounting apparatus for wheelchairs
EP0867165A1 (de) * 1994-12-28 1998-09-30 Sunrise Medical HHG Inc. Rollstuhl
US20070216131A1 (en) * 2006-03-14 2007-09-20 Revab B.V. Office chair
WO2010017644A1 (en) * 2008-08-15 2010-02-18 Rogue Wheels Inc. Modular and/or configurable wheelchair apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11311435B2 (en) 2017-05-02 2022-04-26 Dimitre Petkov DIMITROV Frame for utilization with components of wheelchair
IT201800004946A1 (it) * 2018-04-27 2018-07-27 Gruppo ruote per un dispositivo a spinta manuale e dispositivo comprendente tale gruppo ruote
FR3115979A1 (fr) * 2020-11-10 2022-05-13 Gilles DESCAMPS Fauteuil roulant comprenant un dispositif d’inclinaison de roues
WO2022101112A1 (fr) * 2020-11-10 2022-05-19 Costiou Annabelle Fauteuil roulant comprenant un dispositif d'inclinaison de roues
IT202100000260A1 (it) * 2021-01-08 2021-04-08 Lab 3 11 S R L Carrozzina comprendente un sistema di bloccaggio
EP4026528A1 (de) 2021-01-08 2022-07-13 LAB 3.11 S.r.l. Rollstuhl mit verriegelungssystem

Also Published As

Publication number Publication date
ITTO20130613A1 (it) 2015-01-20

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