WO2000064725A1 - Systeme de freinage pour deambulateur a roulettes - Google Patents

Systeme de freinage pour deambulateur a roulettes Download PDF

Info

Publication number
WO2000064725A1
WO2000064725A1 PCT/SE2000/000745 SE0000745W WO0064725A1 WO 2000064725 A1 WO2000064725 A1 WO 2000064725A1 SE 0000745 W SE0000745 W SE 0000745W WO 0064725 A1 WO0064725 A1 WO 0064725A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotation
brake lever
brake
handle
braking
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.)
Ceased
Application number
PCT/SE2000/000745
Other languages
English (en)
Inventor
Ulf Peter SJÖSTRAND
Hubert Erick MALMSTRÖM
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.)
Etac AB
Original Assignee
Etac AB
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 Etac AB filed Critical Etac AB
Priority to AU46333/00A priority Critical patent/AU4633300A/en
Publication of WO2000064725A1 publication Critical patent/WO2000064725A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/04—Wheeled walking aids for patients or disabled persons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/04—Wheeled walking aids for patients or disabled persons
    • A61H2003/046—Wheeled walking aids for patients or disabled persons with braking means

Definitions

  • the present invention relates to a brake system in wheeled walking frames, customer trolleys, perambulators or the like, comprising a braking device acting against a wheel and a handle provided with a brake lever which has a braking position and a locking position, and which, in use, actuates the braking device via the one end of a connection whose other end abuts with a certain pressure against a pressure surface disposed adjacent the brake lever, the brake lever being rotary about two separate rotation centres.
  • a wheeled Zimmer frame or walking frame must satisfy certain requirements to be used within public medical care. Among other things, it must be fitted with a brake which is efficient when there is a temporary need to reduce speed, i.e. to impede rolling of the wheels, for example in a downhill position, or in cases where the user risks losing control over the wheeled walking frame.
  • the brake must also be capable of being actuated stationary in order to prevent lurch-rolling, for example when the user needs to take a brief rest and perhaps wishes to use the walking frame as a seat. In this case, the brake must have a stable locking position. There are various types of brakes on the market with this function.
  • WO 93/ 18946 discloses an operating device for, for example, a brake in which an operating member is connected to the brake via a connection arrangement which includes a linkage with a first rotation centre and a wire.
  • the operating member is rotatably connected in a second rotation centre with the linkage which in turn is connected to the wire.
  • the operating member acts on the Unkage without any mutual rotation.
  • the Unkage is rotated only around the first rotation centre.
  • the operating member is rotated around the second rotation centre, at the same time as a heel on the operating member is appUed against a fixed point.
  • WO 96/ 31389 also shows an operating device which includes an operating member, a Unkage and a wire which are interconnected to one another in a manner which substantially corresponds to the above-described.
  • the Unkage has two rotation centres as in the foregoing.
  • the operating member In a temporary braking, the operating member on the other hand executes a movement around the rotation centre which constitutes its connection with the linkage and lifts the linkage upwards so that this is rotated around the second rotation centre and actuates the brake.
  • the operating member In the stable locking position, the operating member is rotated in the other direction around its connection point with the Unkage. A part of the operating member lifts the Unkage upwards so that a movement takes place around the second rotation centre and the brake is actuated also in this case.
  • the drawbacks inherent in this construction are substantially the same as those inherent in the preceding construction.
  • the present invention is thus applicable to that type of brake which comprises a braking device acting on a wheel, a handle with a rotary brake lever which on adjustment actuates the braking device via one end of a connection whose other end abuts with a certain pressure against a pressure surface disposed adjacent the brake lever.
  • a neutral position e.g. upwards
  • the brake lever falls into a locking position until the user releases it, whereupon it returns to the neutral position.
  • connection is subjected to either pressure or drawing.
  • the actual mechanism for transferring the action of the brake lever on the connection takes place as described above with different types of Unkages or eccentric movements.
  • the object of the present invention is to realise a simplification of the mechanism for achieving the rotational movements which in turn give the desired braking function.
  • the brake lever is made rotational about two separate rotation centres, which, in the neutral position of the brake lever, are both active in order, on rotation in either direction, to lose its function as a rotation centre, while the rotation takes place about the other rotation centre.
  • Fig. 1 shows the mechanism in neutral position
  • Fig. 2 shows the mechanism in normal braking
  • Fig. 3 shows the mechanism in the locking position.
  • the major parts included in the brake system are a handle 10, a brake lever 20, a bearing housing 30, a connection 40 and a braking device 50. Further, there is a strap 60 which connects the handle 10 and the brake lever 20.
  • the bearing housing 30 is disposed on or immediately adjacent the handle 10. The brake lever 20 is disposed to extend partly into the bearing housing 30 and partly to project out beyond it.
  • the brake lever 20 in principle consists of two mutuaUy rigidly connected portions, a gripping portion 21 and a functional portion 22, which in turn include two rotation centres, an outer 23 and an inner 24. Both of the rotation centres 23, 24 include parts of the bearing housing 30 and the functional portion 22 which cooperate with one another.
  • the rotation centre 23, which is the front centre in the normal direction of travel, comprises, in the preferred embodiment, a concave surface in the bearing housing 30 and a convex portion on the functional portion 22.
  • the rear rotation centre 24 includes a convex surface in the bearing housing 30 and a concave portion on the functional portion 22.
  • the functional portion 22 further has two convex contact portions 25 and 26 which, under pressure from a helical spring 44, sUde against two surfaces 41 and 42 disposed on the upper end 43 of the connection 40.
  • the upper surface 41 is concave and sUdes against the convex contact portion 25.
  • the lower surface 42 is convex and sUdes against the convex contact portion 26 which has a recess 27 whose form permits accommodating the surface 42 which, in the preferred embodiment, is a pin.
  • the gripping portion 21 of the brake lever 20 is pressed in a direction towards the handle 10 under compression of the helical spring 44.
  • the brake lever 20 wiU in this instance, be rotated about its inner or rear rotation centre 24 and the contact surface 25 will then slide against the surface 41 on the end 43 of the connection 40 as shown in Fig. 2.
  • the connection 40 will be pressed downwards and the braking device 50 will enter into function (not shown in the Figures).
  • the brake lever 20 automatically returns to the neutral position according to Fig. 1 under the action of the force from the helical spring 44.
  • the brake system is therefore provided with a strap 60, preferably of textile, whose ends are connected to the handle 10 and the brake lever 20, respectively.
  • a Ught pressure from one finger against the strap in this position as shown in Fig. 3 gives sufficient force to release the brake.
  • the strap 60 On actuation of the strap 60, the upper end of the gripping portion

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Braking Arrangements (AREA)
  • Handcart (AREA)
  • Rehabilitation Tools (AREA)

Abstract

L'invention concerne un système de freinage pour déambulateurs à roulettes ou analogue, comprenant un dispositif de freinage et une poignée (10) pourvue d'une manette (20) de frein. Le dispositif de freinage agit sur une roulette, et la manette de frein possède une position de freinage et une position de blocage. Lors de l'utilisation, la manette de frein permet d'actionner le dispositif de freinage via une extrémité (50) d'un raccord (40). L'autre extrémité (43) du raccord (40) bute contre une surface (25, 26) de pression adjacente à la manette de frein. La manette de frein peut tourner autour de deux centres (23, 24) de rotation séparés, l'un (24) fonctionnant en position de freinage, l'autre (23) en position de blocage.
PCT/SE2000/000745 1999-04-26 2000-04-19 Systeme de freinage pour deambulateur a roulettes Ceased WO2000064725A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU46333/00A AU4633300A (en) 1999-04-26 2000-04-19 A brake system in wheeled walking frames

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9901474-8 1999-04-26
SE9901474A SE514269C2 (sv) 1999-04-26 1999-04-26 Bromsanordning vid rollatorer

Publications (1)

Publication Number Publication Date
WO2000064725A1 true WO2000064725A1 (fr) 2000-11-02

Family

ID=20415335

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2000/000745 Ceased WO2000064725A1 (fr) 1999-04-26 2000-04-19 Systeme de freinage pour deambulateur a roulettes

Country Status (3)

Country Link
AU (1) AU4633300A (fr)
SE (1) SE514269C2 (fr)
WO (1) WO2000064725A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110464605A (zh) * 2018-05-10 2019-11-19 美迪健康事业有限公司 助行器
NO20181237A1 (en) * 2018-09-24 2020-03-25 Topro Ind As Brake handle system for a rollator with a brake wire inside a frame

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO318777B1 (no) 2003-09-30 2005-05-02 Access As En hoydejusterbar rullator med en bremse
USD503909S1 (en) 2004-01-13 2005-04-12 Acess As Walker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE468621B (sv) * 1990-10-23 1993-02-22 Etac Ab Handbroms foer ett hjulfoersett redskap, saasom en rollator
WO1993018946A1 (fr) * 1992-03-24 1993-09-30 Dolomite Svenska Aktiebolag Appareil de commande
WO1996031389A1 (fr) * 1995-04-03 1996-10-10 Care Dimension A/S Mecanisme d'actionnement d'un frein

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE468621B (sv) * 1990-10-23 1993-02-22 Etac Ab Handbroms foer ett hjulfoersett redskap, saasom en rollator
WO1993018946A1 (fr) * 1992-03-24 1993-09-30 Dolomite Svenska Aktiebolag Appareil de commande
WO1996031389A1 (fr) * 1995-04-03 1996-10-10 Care Dimension A/S Mecanisme d'actionnement d'un frein

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110464605A (zh) * 2018-05-10 2019-11-19 美迪健康事业有限公司 助行器
NO20181237A1 (en) * 2018-09-24 2020-03-25 Topro Ind As Brake handle system for a rollator with a brake wire inside a frame

Also Published As

Publication number Publication date
SE9901474L (sv) 2000-10-27
SE9901474D0 (sv) 1999-04-26
AU4633300A (en) 2000-11-10
SE514269C2 (sv) 2001-01-29

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