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WO1992006661A1 - Frein a main pour vehicules a roues - Google Patents

Frein a main pour vehicules a roues Download PDF

Info

Publication number
WO1992006661A1
WO1992006661A1 PCT/SE1991/000611 SE9100611W WO9206661A1 WO 1992006661 A1 WO1992006661 A1 WO 1992006661A1 SE 9100611 W SE9100611 W SE 9100611W WO 9206661 A1 WO9206661 A1 WO 9206661A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
pivotal
pivot shaft
connection device
rocker
Prior art date
Application number
PCT/SE1991/000611
Other languages
English (en)
Inventor
Per Elvinsson
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
Publication of WO1992006661A1 publication Critical patent/WO1992006661A1/fr
Priority to NO931438A priority Critical patent/NO176593C/no

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/04—Braking mechanisms; Locking devices against movement
    • 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 device for a wheeled implement or vehicle including at least one wheel fitted with a brake, a connection device such as a line or rod provided for operating the brake, a gripping portion on the implement for maneuvering thereof, and a handle device disposed a slight distance from the gripping portion and substantially therealong, the handle 1 0 device being, with a first end, secured in the implement.
  • Wheeled implements or vehicles of the type mentioned by way of introduction 15 are employed as walking aids for people suffering from greater or lesser disability, for example the elderly or people undergoing rehabilitation after an accident. These implements are also variously entitled walkers, wheeled walking frames, or rollators and, to be able to fulfil their function, must be highly maneuverable and, in particular must not require any appreciable 20 degree of strength on the part of the user operating the brakes, irrespective of whether this applies to normal braking or parking braking.
  • 25 device has a portion of a cable secured along and in slight spaced apart relationship from a handle fitted on the implement. This portion is pivotally secured with one end section in an anchorage on the handle. Furthermore, the cable is, at the opposite end of this portion, longitudinally displaceably passed through a guide, whereby drawing of the portion towards the handle
  • the portion is provided with a fixed stop at the guide and a U-shaped channel projecting towards the anchorage is disposed beneath the guide, and the stop may be caught against the free end of the channel when the portion is pressed downwards from the handle.
  • the present invention has for its object to realise a brake device of the type mentioned by way of introduction, the brake device being designed in such a
  • the present invention further has for its object to realise a brake device which requires no major maintenance adjustment, the previously employed cable having been eliminated and the force transmission between the operating device of the brake and the brake proper being effected in a manner
  • the present invention further has for its object to realise a brake device which is simple and economical in manufacture and is extremely operationally reliable.
  • the brake device intimated by way of introduction is characterized by a portion connected to the implement and pivotal about a pivot shaft, in which portion the connection device is secured in spaced apart relationship from the pivot 5 shaft such that the brake is actuable by rotation of the pivotal portion in a first direction, the other end of the handle device being secured in the pivotal portion a distance from the pivot shaft such that, in the non-activated position of the brake, an actuation of the handle device towards or away from the gripping portion will rotate the pivotal portion in the first direction.
  • the pivotal portion is pivotal within such a pivotal radius defined by abutments that, at the ends of the pivotal radius, the connection device is located on opposite sides of the pivot shaft.
  • connection device On activation of the brake, thus passes over dead centre, i.e. past the pivot shaft, a considerable braking force will be generated on slight operating power and, furthermore, the possibility of function as parking brake will also be afforded.
  • Fig. 1 shows, straight from the side, an upper portion of an implement (rollator fitted with the brake device according to the present invention, the brake device being located in the non-activated state;
  • Fig. 2 shows a lower portion of the implement of Fig. 1 ;
  • Fig. 3 is a view corresponding to that of Fig. 1, but with the brake device in the activated, parking position.
  • the implement has a rear frame section 1 with downwardly directed shanks which carry wheels (not shown in this Figure).
  • the upper end of the rear frame is bent forwardly and there assumes an approximately horizontal recumbent, roughly U-shaped form.
  • the implement also has a front frame 2 with downwardly directed shanks whose lower ends are fitted with pivotal wheels.
  • the front frame 2 is connected to the rear frame 1 by the intermediary of joints 3 so that the frames 1 and 2 are pivotal in relation to one another between the opened position of use illustrated in Fig. 1 and a collapsed position in which the front frame 2 is swung in towards the rear frame.
  • Fig. 2 shows the lower end of the rear frame 1, it being apparent from this Drawing that each downwardly directed shank in the rear frame is fitted with a wheel 4. Furthermore, there is provided, in the region above the wheel, a pivotal arm 6 with a laterally directed projection 7.
  • the pivotal arm 6 is secured by the intermediary of a joint 8 and is pivotal in accordance with the arrow A so that the projection 7, on pivoting in a clockwise direction by upward pulling of a connection device 19, may be brought into engagement with the periphery of the wheel 4 so that the wheel is thereby braked.
  • a return spring is provided which strives to pivot the arm 6 in a counterclockwise direction, possibly into abutment against a stop.
  • gripping portions 9 or handles which the user grasps when the implement is being propelled.
  • the other end 13 of the handle device 10 is secured in an anchorage 14 designed as a projecting stub shaft on the second frame 2.
  • the handle device 10 may be produced from a flexible, strip shaped and substantially inextensible material, such as for example a planar woven strap, a strand or the like.
  • the handle device 10 In the released, non-braking state illustrated in Fig. 1, the handle device 10 extends approximately rectilinearly between the stub shaft 14 and its anchorage 11 in the rocker 12. In this position, the handle device is more or less stretched and is located at such a distance from the gripping portion 9 that it is readily accessible by a hand, with the wrist resting on the upper side of the gripping portion.
  • the rocker 12 is pivotally secured on a stirrup bar 15 so that the rocker is pivotal, about a pivot shaft 16, between the positions illustrated in Figs. 1 and 3.
  • the rocker 12 has a pivotal radius which is defined by abutments 17 and 18 on the outside of the stirrup bar.
  • the rocker itself is designed as a U-shaped yoke seen in the longitudinal direction of the handle device 10 and has its shanks on the outside of the stirrup bar 15, which has two approximately mutually parallel shanks. The distance between these shanks is so large that a connection device 19 may move in between them, this device being, with its one end, secured in the rocker and, with its other end (see Fig. 2), secured in the pivotal brake arm 6.
  • An upward pulling of the connection device 19 realises, as is apparent from Fig. 2, a braking of the wheel 4.
  • the pivotal radius which is permitted for the rocker 12 by the two abutments 17 5 and 18 is of such magnitude that, when the rocker is pivoted from the position according to Fig. 1 (brake released) to the position according to Fig. 3 (parking brake), the connection device 19 will pass from one side of the pivot shaft 16 to the other side thereof. Thus, the connection device 19 passes over dead centre.
  • connection device 19 may, in practice, consist of a substantially inextensible strand, a woven, planar strap, but may also be a rod.
  • the length of the connection device 19 is adapted in such a manner that, with the rocker 12 in the position as shown in Fig.1, the pivotal brake arm 6 is located in the
  • connection device 19 On commencement of pivoting of the rocker 12 in a counterclockwise direction, the connection device 19 will, however, be drawn upwardly, as a result of which the brake arm 6 is pivoted in a clockwise direction into engagement with the periphery of the wheel 4. With the correct adjustment of the brake, this will occur somewhere between the
  • connection device 19 is located in register with the pivot shaft 16.
  • application of the brake may also take effect approximately centrally of this region.
  • connection device 19 On pivoting of the rocker 12 so far in a counterclockwise direction that the connection device 19 passes the pivot shaft 16, a somewhat downwardly directed movement will once again be imparted to the connection device (which thus acts on the brake in its direction of release). However, the abutment 18 is located in such a position that the continued pivoting of the
  • rocker 12 is arrested already when the connection device 19 is located but a slight distance past the pivot shaft 16 in a direction to the left in Fig. 1. This position is clearly illustrated in Fig. 3. In this position, the brake arm 6 is located with the projection 7 in hard contact with the periphery of the wheel 4 so that the vehicle is braked for parking. j
  • the length of the handle device 10 is adapted in such a way that, when the handle device is pulled upwardly towards the gripping portion 9, pivoting of the rocker 12 will be effected in a counterclockwise direction so far that braking is realised. Since the direction of pull from the handle device 10 is directed obliquely upwardly, the rocker 12 will not be capable of being pivoted so far that the connection device 19 passes the pivot shaft 16. Alternatively (depending somewhat on the placing of the hand), the handle device 10 will come into abutment against the underside of the gripping portion 9 before the connection device 19 has passed over dead centre. This implies that it is impossible to realise parking braking by actuating the handle device in an upward direction.
  • the solid line 19 represents the connection device in that position which this assumes when the brake is not activated, while the broken line 19' shows the direction of the connection device in that position this assumes in the parking braked state (according to Fig. 3).
  • the present invention may be modified without departing from the spirit and scope of the appended Claims.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Braking Elements And Transmission Devices (AREA)
  • Rehabilitation Tools (AREA)
  • Handcart (AREA)

Abstract

Un dispositif de freinage destiné à un appareil de marche, un déambulateur ou analogue comporte une roue dotée d'un frein relié par l'intermédiaire d'un câble (19) à une partie de commande (10) située à une certaine distance au-dessous du manche (9) du déambulateur. La partie de commande (10) est fixée par son extrémité (13) dans le manche (9) et par son autre extrémité (11) dans un levier à genouillère à bras unique (12) pivotant autour d'un arbre pivot (16) et fixé au-dessous du manche (9). Le câble (19) est fixé dans le levier à genouillère à bras unique (12) de sorte que le frein est activé lorsque ledit levier (12) pivote, de manière que la partie de commande (10) est tirée vers le haut ou poussée vers le bas à l'aide du manche (9). Le levier à genouillère à bras unique (12) effectue un mouvement de pivotement entre des butées (17, 18) et il peut pivoter par abaissement de la partie de commande (10) jusqu'à la butée (18), de manière que le câble (19) passe l'arbre pivot (16) et que le levier à genouillère à bras unique (12) passe sont point mort de manière à maintenir le frein dans la position de freinage.
PCT/SE1991/000611 1990-10-23 1991-09-16 Frein a main pour vehicules a roues WO1992006661A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO931438A NO176593C (no) 1990-10-23 1993-04-20 Bremseanordning for et hjulforsynt gåstativ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9003375A SE468621B (sv) 1990-10-23 1990-10-23 Handbroms foer ett hjulfoersett redskap, saasom en rollator
SE9003375-4 1990-10-23

Publications (1)

Publication Number Publication Date
WO1992006661A1 true WO1992006661A1 (fr) 1992-04-30

Family

ID=20380714

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1991/000611 WO1992006661A1 (fr) 1990-10-23 1991-09-16 Frein a main pour vehicules a roues

Country Status (4)

Country Link
CA (1) CA2094502A1 (fr)
DE (2) DE9190147U1 (fr)
SE (1) SE468621B (fr)
WO (1) WO1992006661A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996029041A1 (fr) * 1995-03-20 1996-09-26 Doyle Brian P Dispositif d'aide a la marche
WO2004073578A1 (fr) * 2003-02-24 2004-09-02 Dolomite Ab Appareil de marche
USD503909S1 (en) 2004-01-13 2005-04-12 Acess As Walker
US7182179B2 (en) 2003-09-30 2007-02-27 Access As Walker with adjustable handlebar
US8083239B2 (en) 2008-10-08 2011-12-27 Evolution Technologies Inc. Foldable walker apparatus
US8864151B1 (en) 2010-10-29 2014-10-21 Evolution Technologies Inc. Foldable walker apparatus
US8936256B2 (en) 2008-10-08 2015-01-20 Evolution Technologies Inc. Foldable walker apparatus
US9339432B2 (en) 2014-02-28 2016-05-17 Evolution Technologies Inc. Walker apparatus and backrest therefor
US9415635B2 (en) 2010-10-29 2016-08-16 Evolution Technologies Inc. Foldable walker apparatus
US9744094B2 (en) 2014-02-28 2017-08-29 Evolution Technologies Inc. Walker apparatus and backrest therefor
US10053062B2 (en) 2015-09-02 2018-08-21 Evolution Technologies Inc. Brake assembly for a height-adjustable walker apparatus
USD828701S1 (en) 2017-02-17 2018-09-18 Evolution Technologies Inc. Set of seat cushions
USD886494S1 (en) 2016-02-26 2020-06-09 Evolution Technologies Inc. Set of seat cushions
US10730489B2 (en) 2015-09-02 2020-08-04 Evolution Technologies Inc. Brake assembly for height-adjustable patient transport apparatus
US11648922B2 (en) 2015-09-02 2023-05-16 Evolution Technologies Inc. Manually-operated, height-adjustable wheeled vehicle, and a brake assembly and wheel fork assembly thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE514269C2 (sv) * 1999-04-26 2001-01-29 Etac Ab Bromsanordning vid rollatorer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872945A (en) * 1974-02-11 1975-03-25 Falcon Research And Dev Co Motorized walker
US4280578A (en) * 1979-02-21 1981-07-28 Margaret P. Roberts Motorized walker for the disabled
GB2076666A (en) * 1980-05-28 1981-12-09 White Cap Enterprises Corp Safety rolling invalid walker
SE442731B (sv) * 1984-07-02 1986-01-27 Enco Miljo Forseljning Ab Bromsanordning for hjulforsett redskap eller fordon
US4907794A (en) * 1987-12-24 1990-03-13 Guardian Products, Inc. Foldable rolling walker

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872945A (en) * 1974-02-11 1975-03-25 Falcon Research And Dev Co Motorized walker
US4280578A (en) * 1979-02-21 1981-07-28 Margaret P. Roberts Motorized walker for the disabled
GB2076666A (en) * 1980-05-28 1981-12-09 White Cap Enterprises Corp Safety rolling invalid walker
SE442731B (sv) * 1984-07-02 1986-01-27 Enco Miljo Forseljning Ab Bromsanordning for hjulforsett redskap eller fordon
US4907794A (en) * 1987-12-24 1990-03-13 Guardian Products, Inc. Foldable rolling walker

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996029041A1 (fr) * 1995-03-20 1996-09-26 Doyle Brian P Dispositif d'aide a la marche
WO2004073578A1 (fr) * 2003-02-24 2004-09-02 Dolomite Ab Appareil de marche
US7410179B2 (en) 2003-02-24 2008-08-12 Dolomite Ab Walker device
CN100508934C (zh) * 2003-02-24 2009-07-08 多洛迈特股份公司 助步器具
US7182179B2 (en) 2003-09-30 2007-02-27 Access As Walker with adjustable handlebar
USD503909S1 (en) 2004-01-13 2005-04-12 Acess As Walker
US8936256B2 (en) 2008-10-08 2015-01-20 Evolution Technologies Inc. Foldable walker apparatus
US8267412B2 (en) 2008-10-08 2012-09-18 Evolution Technologies Inc. Foldable walker apparatus
US8083239B2 (en) 2008-10-08 2011-12-27 Evolution Technologies Inc. Foldable walker apparatus
US9192541B2 (en) 2008-10-08 2015-11-24 Evolution Technologies Inc. Foldable walker apparatus
US8251380B2 (en) 2008-10-08 2012-08-28 Evolution Technologies Inc. Foldable walker apparatus
US9415635B2 (en) 2010-10-29 2016-08-16 Evolution Technologies Inc. Foldable walker apparatus
US8864151B1 (en) 2010-10-29 2014-10-21 Evolution Technologies Inc. Foldable walker apparatus
US9320672B2 (en) 2010-10-29 2016-04-26 Evolution Technolgies Inc. Foldable walker apparatus
US9339432B2 (en) 2014-02-28 2016-05-17 Evolution Technologies Inc. Walker apparatus and backrest therefor
US9744094B2 (en) 2014-02-28 2017-08-29 Evolution Technologies Inc. Walker apparatus and backrest therefor
US10053062B2 (en) 2015-09-02 2018-08-21 Evolution Technologies Inc. Brake assembly for a height-adjustable walker apparatus
US10730489B2 (en) 2015-09-02 2020-08-04 Evolution Technologies Inc. Brake assembly for height-adjustable patient transport apparatus
US11220246B2 (en) 2015-09-02 2022-01-11 Evolution Technologies Inc. Brake assembly for height-adjustable patient transport apparatus
US11648922B2 (en) 2015-09-02 2023-05-16 Evolution Technologies Inc. Manually-operated, height-adjustable wheeled vehicle, and a brake assembly and wheel fork assembly thereof
USD886494S1 (en) 2016-02-26 2020-06-09 Evolution Technologies Inc. Set of seat cushions
USD828701S1 (en) 2017-02-17 2018-09-18 Evolution Technologies Inc. Set of seat cushions

Also Published As

Publication number Publication date
SE9003375L (sv) 1992-04-24
DE4193708T1 (de) 1993-10-07
CA2094502A1 (fr) 1992-04-24
SE9003375D0 (sv) 1990-10-23
SE468621B (sv) 1993-02-22
DE9190147U1 (de) 1993-07-15

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