NL1021139C1 - Vehicle braking device, especially for rollator, uses weight of vehicle and load to apply pressure to wheels - Google Patents

Vehicle braking device, especially for rollator, uses weight of vehicle and load to apply pressure to wheels Download PDF

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Publication number
NL1021139C1
NL1021139C1 NL1021139A NL1021139A NL1021139C1 NL 1021139 C1 NL1021139 C1 NL 1021139C1 NL 1021139 A NL1021139 A NL 1021139A NL 1021139 A NL1021139 A NL 1021139A NL 1021139 C1 NL1021139 C1 NL 1021139C1
Authority
NL
Netherlands
Prior art keywords
vehicle
wheel
rollator
load
braking device
Prior art date
Application number
NL1021139A
Other languages
Dutch (nl)
Inventor
Klaas Vet
Dirk Vet
Original Assignee
Klaas Vet
Dirk Vet
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 Klaas Vet, Dirk Vet filed Critical Klaas Vet
Priority to NL1021139A priority Critical patent/NL1021139C1/en
Application granted granted Critical
Publication of NL1021139C1 publication Critical patent/NL1021139C1/en

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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 disabled persons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0057—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being offset from swivel axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0068—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
    • B60B33/0081—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism acting on tire tread
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
    • B60B33/0094—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism actuated automatically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
    • B60B33/021—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism combined with braking of castor wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
    • B60B33/023—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism by using friction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/04—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting directly on tread
    • 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 disabled persons
    • A61H2003/046—Wheeled walking aids for disabled persons with braking means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/14—Mechanical
    • F16D2121/16—Mechanical for releasing a normally applied brake

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Transportation (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Rehabilitation Tools (AREA)
  • Handcart (AREA)

Abstract

The pressure applied to the wheel(s) is generated by the weight of the vehicle and the load carried by it.

Description

Rem voor rollator.Brake for walker.

Het remmen van de rollator geschiedt bij de gebruikelijke uitvoering door het remblokje middels het remmechanisme op het bijbehorende wiel te 5 drukken. Hierbij wordt tijdens de wandeling vanuit de ongeremde stand de rem aangehaald om daarna indien nodig de rem in de blokkeerstand te zetten.Braking of the rollator is effected in the usual embodiment by pressing the brake pad on the associated wheel by means of the braking mechanism. Hereby the brake is applied during the walk from the non-braked position and then if necessary put the brake in the blocking position.

Met een eenvoudige handeling kan de blokkeertoestand worden opgeheven, waarna de rollator weer in de ongeremde stand staat.The blocking state can be canceled with a simple operation, after which the walker is again in the unrestrained position.

Aan dit systeem is een gevaar verbonden dat optreedt bij het afdalen langs 10 een talud. Dan moet n.l. worden geremd en dat kan een probleem zijn voor de bejaarde met een verminderde reaktiesnelbeid en/of met een slechte hand- en vingerfunktie. Wanneer aldus niet of te laat wordt geremd kunnen er ongelukken gebeuren. Een betere volgorde zou zijn, wanneer men uitgaat van de geremde toestand.There is a danger associated with this system that occurs when descending along a slope. Then n.l. be inhibited and that can be a problem for the elderly with a reduced reaction speed and / or with poor hand and finger function. If the brakes are not applied or are applied too late, accidents can occur. A better order would be to start from the inhibited state.

15 Dan moet om te kunnen rijden de rem dus worden gelicht en worden doorgetrokken naar de permanent gelichte toestand. Wanneer men hierna, aangekomen bij het talud moet remmen dan kan door een eenvoudige handeling de permanent gelichte toestand worden opgeheven, waarna kan worden overgegaan op aangepast remmen.Then, in order to be able to drive, the brake must be released and extended to the permanently released state. If, after this, one has to brake at the slope, the permanently lifted state can be canceled by a simple action, after which it is possible to switch to adapted brakes.

20 Mocht deze laatstgenoemde handeling mislukken dan staat de rollator op de rem. In dat geval geen ongeluk en er kan alsnog aangepast worden geremd. Teneinde deze volgordewisseling tot stand te brengen moet het remblokje door b.v. een veer worden aangedrukt en ook aan de andere onderdelen van het remmechanisme moet iets gebeuren.20 If this last-mentioned operation fails, the walker is on the brake. In that case, no accident and you can still adjust the brakes accordingly. In order to effect this sequence change, the brake pad must be driven by e.g. a spring must be pressed and something must also be done about the other parts of the brake mechanism.

25 Nu doet de vraag zich voor hoe zwaar die veer moet worden gespannen.25 Now the question arises how heavy that spring must be tensioned.

Daar met te weinig aandrukkracht slip optreedt moet met enige reserve de aandrukkracht groter zijn dan nodig is.Since slip occurs with too little pressing force, the pressing force must be greater than necessary with some reserve.

Dit geldt ook voor de huidig gebruikelijke uitvoering in de blokkeerstand. Verder moet ook de aandrukkracht groter zijn naarmate de rollator zwaarder 30 is beladen. De aandrukkracht werkt ook door in de te bedienen handle, zodat er voor ouderen met minder krachtige vingers voorkeur bestaat voor een aandrukkracht die niet groter is dan benodigd.This also applies to the current usual version in the blocking position. Furthermore, the pressing force must also be greater the heavier the load on the rollator. The pressure force also has an effect on the handle to be operated, so that elderly people with less powerful fingers prefer a pressure force that is no greater than required.

Deze minimaal vereiste en tevens voldoende aandrukkracht is te realiseren wanneer het gewicht van de rollator wordt benut om te remmen. Door het frame 35 te laten zakken, waarbij een aan het frame verbonden remblokje op het betreffende wiel zakt, wordt de normaalkracht tussen wiel en remblokje (met verwaarlozing van o.a. het gewicht van het wiel) gelijk aan de grondreaktie op het betreffende wiel. Wanneer de wrijvingscoëfficiënt tussen remblokje en wiel slechts iets groter is dan de wrijvingscoëfficiënt tussen weg en wiel 1 r 'm -« 3 g 2 dan kan men het wiel in geremde toestand beschouwen als vastgebonden aan het frame. Wanneer de rollator zwaarder is beladen is een beter effect van remmen noodzakelijk en dat wordt ook met het remmen door middel van het frame bereikt. Dus ook wanneer men op de rollator zit kan men de geremde 5 wielen beschouwen als stoelpoten.This minimum required and also sufficient pressing force can be achieved when the weight of the rollator is used for braking. By lowering the frame 35, whereby a brake pad connected to the frame drops on the wheel in question, the normal force between the wheel and the brake pad (with neglect of, inter alia, the weight of the wheel) becomes equal to the ground reaction on the wheel in question. If the coefficient of friction between brake pad and wheel is only slightly larger than the coefficient of friction between road and wheel 1 r - m 3, then the wheel can be regarded as braked to the frame when braked. When the rollator is heavier loaded, a better effect of braking is necessary and that is also achieved with braking through the frame. So even when sitting on the walker, the braked 5 wheels can be considered as chair legs.

Door genoemde aandrukkracht middels het remmechanisme te verminderen kan tijdens de wandeling aangepast worden geremd, resp. de rem worden gelicht. Teneinde het beschreven effect te verkrijgen zijn verschillende uitvoeringsvormen mogelijk.By reducing said pressure force by means of the braking mechanism, braking can be adjusted during the walk, respectively. the brake are released. In order to achieve the described effect, various embodiments are possible.

10 Een uitvoeringsvorm volgens de uitvinding zal hieronder nader worden uiteengezet aan de hand van de bijgevoegde figuur.An embodiment according to the invention will be explained in more detail below with reference to the appended figure.

In genoemde figuur is de situatie in geremde toestand getekend.The situation in the braked state is shown in said figure.

Het wiel met wielas 1 en buitenomtrek 2 drukt tegen het remblokje 3 met een kracht, gelijkaan de kracht tussen wiel en wegdek, onder verwaarlozing als 15 eerder genoemd. De kracht op het remblokje 3 wordt via de stelschroef 5 overgebracht op de vertikale framebuis 6 en de daaraan verbonden wielkap 7. Het remblokje 3 is via een verbinding draaibaar om de scharnieras 8 aan de wielkap 7 bevestigd, alwaar de pijl nabij de scharnieras 8 de invloed van een veer aangeeft, waardoor in ongeremde toestand het remblokje 3 tegen de 20 stelschroef 5 blijft aanliggen.The wheel with wheel axle 1 and outer circumference 2 presses against the brake pad 3 with a force, similar to the force between the wheel and road surface, while neglecting the aforementioned. The force on the brake pad 3 is transferred via the adjusting screw 5 to the vertical frame tube 6 and the wheel cover 7 connected thereto. indicates the influence of a spring, as a result of which the brake pad 3 remains in contact with the adjusting screw 5 in an unrestrained state.

Het wiel met wielas 1 is gelagerd in de wielvork 4 die draaibaar om as 9 aan de wielkap 7 is bevestigd. Opdat de uitslag van het wiel bij optillen van de rollator beperkt blijft is op de wielkap 7 de begrenzing 10 aangebracht. Om over te gaan op de ongeremde toestand moet met de remhandle frame-25 buis 6 omhoog worden bewogen t.o.v. stang 11, waarbij genoemde veer nabij scharnier 8 ervoor dient dat het remblokje 3 niet op het wiel blijft liggen.The wheel with wheel axle 1 is mounted in the wheel fork 4 which is rotatably mounted on the wheel cover 7 about axle 9. In order that the deflection of the wheel remains limited when the rollator is lifted, the limitation 10 is provided on the wheel cover 7. In order to switch to the unrestrained state, the brake handle frame tube 6 must be raised relative to the rod 11, said spring serving near hinge 8 ensuring that the brake pad 3 does not remain on the wheel.

* : n*: n

Claims (2)

1. Reminrichting voor een voertuig, in het bijzonder voor de rollator, waarbij een aandrukkracht op één of meer wiel(en) wordt overgedragen met het 5 kenmerk dat genoemde aandrukkracht wordt geleverd door het gewicht van het voertuig en de belading.Braking device for a vehicle, in particular for the rollator, wherein a pressure force is transmitted to one or more wheel (s), characterized in that said pressure force is supplied by the weight of the vehicle and the load. 2. Reminrichting volgens conclusie 1 met het kenmerk dat de gebruiker middels een mechanisme de genoemde aandrukkracht kan verminderen, waardoor aangepast kan worden geremd, resp. de remwerking kan worden opgeheven. 10211392. A braking device as claimed in Claim 1, characterized in that the user can reduce said pressing force by means of a mechanism, so that braking can be adjusted or resp. the braking effect can be canceled. 1021139
NL1021139A 2002-07-23 2002-07-23 Vehicle braking device, especially for rollator, uses weight of vehicle and load to apply pressure to wheels NL1021139C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL1021139A NL1021139C1 (en) 2002-07-23 2002-07-23 Vehicle braking device, especially for rollator, uses weight of vehicle and load to apply pressure to wheels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1021139A NL1021139C1 (en) 2002-07-23 2002-07-23 Vehicle braking device, especially for rollator, uses weight of vehicle and load to apply pressure to wheels
NL1021139 2002-07-23

Publications (1)

Publication Number Publication Date
NL1021139C1 true NL1021139C1 (en) 2004-01-27

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Family Applications (1)

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NL1021139A NL1021139C1 (en) 2002-07-23 2002-07-23 Vehicle braking device, especially for rollator, uses weight of vehicle and load to apply pressure to wheels

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1799540A2 (en) * 2004-10-14 2007-06-27 Kiva Systems, Inc. Inventory system with mobile drive unit and inventory holder
WO2018117815A1 (en) * 2016-12-22 2018-06-28 Prevas Ergonomie B.V. Wheeled walking aid for disabled persons

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1799540A2 (en) * 2004-10-14 2007-06-27 Kiva Systems, Inc. Inventory system with mobile drive unit and inventory holder
EP1799540B1 (en) * 2004-10-14 2016-04-13 Amazon Technologies, Inc. Inventory system with mobile drive unit and inventory holder
WO2018117815A1 (en) * 2016-12-22 2018-06-28 Prevas Ergonomie B.V. Wheeled walking aid for disabled persons
NL2018043B1 (en) * 2016-12-22 2018-06-29 Prevas Ergonomie B V Tool for disabled people
GB2571898A (en) * 2016-12-22 2019-09-11 Prevas Ergonomie B V Wheeled walking aid for disabled persons
GB2571898B (en) * 2016-12-22 2022-03-09 Prevas Ergonomie B V Aid for disabled persons

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Legal Events

Date Code Title Description
VD1 Lapsed due to non-payment of the annual fee

Effective date: 20070201