WO2020067903A1 - Brake handle system for a rollator with a brake wire inside a frame - Google Patents

Brake handle system for a rollator with a brake wire inside a frame Download PDF

Info

Publication number
WO2020067903A1
WO2020067903A1 PCT/NO2019/050193 NO2019050193W WO2020067903A1 WO 2020067903 A1 WO2020067903 A1 WO 2020067903A1 NO 2019050193 W NO2019050193 W NO 2019050193W WO 2020067903 A1 WO2020067903 A1 WO 2020067903A1
Authority
WO
WIPO (PCT)
Prior art keywords
handle
brake
wire
frame
rollator
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/NO2019/050193
Other languages
French (fr)
Inventor
Jonas Berg
Martin Dahl
Josef TANGEN
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.)
Topro Industri AS
Original Assignee
Topro Industri AS
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 Topro Industri AS filed Critical Topro Industri AS
Publication of WO2020067903A1 publication Critical patent/WO2020067903A1/en
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
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/08—Brake-action initiating means for personal initiation hand actuated
    • B60T7/10—Disposition of hand control
    • B60T7/102—Disposition of hand control by means of a tilting lever
    • B60T7/104—Disposition of hand control by means of a tilting lever with a locking mechanism
    • 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
    • A61G5/1005—Wheelchairs having brakes
    • A61G5/101—Wheelchairs having brakes of the parking brake type, e.g. holding the wheelchair
    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/04—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting mechanically
    • B60T11/046—Using cables
    • 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
    • B62B5/0438—Braking mechanisms; Locking devices against movement hand operated
    • 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
    • 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0192—Specific means for adjusting dimensions
    • 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/1635—Hand or arm, e.g. handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/80—Other vehicles not covered by groups B60Y2200/10 - B60Y2200/60
    • B60Y2200/83—Perambulators; Buggies; Strollers

Definitions

  • This invention relates to support materials for elderly or disabled persons, more specifically to a brake handle system with braking wires integrated inside the frame of the rollator.
  • the invention relates to brake handle system for a rollator with a brake wire inside a frame comprising a user regulated state, and a locked active brake state.
  • the system further comprises a handle element comprising a grip, an upper and a lower handle pivot point with a wire fastener for a brake wire there between and a handle locking formation.
  • the system furthermore comprise a handle base comprising an upper and a lower pivot formation mating with the upper and lower handle pivot points of the handle, a base locking formation mating with the handle locking formation and a pre-tensioned brake wire integrated inside the frame, and connected to the brake handle, pulling the handle towards the handle base.
  • the system further comprise a left and right vertical guiding means limiting horizontal movement of the handle element and upper and lower horizontal guiding means limiting vertical movement of the handle to remain within the desired brake action movement.
  • the system further comprise a wire roller, directing the brake wire coming from the wire fastener in a direction downward through the inside of the rollator frame wherein the wire roller is positioned such that an upper tangent of the wire roller (16) points towards the wire fastener (7) of the handle element and the two pivot points of the handle base are configured in a line mainly parallel to a centerline of the frame or extendable rollator shaft, whichever is present.
  • Fig. 1 shows a perspective view of the rollator in an unfolded state.
  • Fig. 2a shows a side view of the brake handle system not activated.
  • Fig 2b is the same view as 2a with the roller removed to reveal the lower pivot point.
  • Fig. 3 shows a side view of the brake handle system in the user operated state.
  • Fig 4a shows a side view of the brake handle system in the locked state.
  • Fig 4b is the same view as 4a with the roller and wire removed to reveal the lower pivot point.
  • Fig. 5a shows a height adjustable rollator with extendable shaft in a low position.
  • Fig. 5b shows a height adjustable rollator with extendable shaft in a high position
  • the brake handle system for a rollator with a brake wire 8 inside a frame 2.
  • the brake handle system have two states: a user operated state, and a locked active brake state, which may be called a parking brake.
  • the user operates the brakes by means of a handle element 3 comprising a grip 4 for the hand.
  • the handle element also comprises an upper and a lower handle pivot point 5, 6 with a wire fastener 7 for a brake wire 8 positioned there between.
  • a handle locking formation 9 is provided in order to produce a locked active brake state.
  • the system further comprise a handle base 10, fixed to or integrated into the upper part of the frame, comprising an upper 11 and a lower 12 pivot formation mating with the upper and lower handle pivot points 5, 6 respectively. Also provided on the handle base is a base locking formation 13 mating with the handle locking formation 9.
  • a pre tensioned brake wire 8 integrated inside the frame is provided. Usually the pre- tension is provided by springs in the brake system near the wheel. The brake wire is connected to the brake handle, pulling the handle towards the handle base.
  • Figure 2a and b shows the brake handle system in a neutral position.
  • Figure 3 shows the brake handle system in a user operated / regulated state and figure 4a and b shows the brake handle system in a locked activated state.
  • left vertical guiding means 14 and right vertical guiding means (not shown) is provided.
  • the vertical guiding means limits the horizontal movements of the handle and in one embodiment the guiding means are left and right vertical surfaces against which the handle slides when operated.
  • upper 16 and lower 17 horizontal guiding means limits vertical movement of the handle to remain within the desired brake action movement.
  • the vertical and horizontal guiding means together form a rectangle in which the brake handle moves.
  • the upper handle pivot point 5 and the handle locking formation 9 is the same and the base locking formation 13 is an indent 13 in the upper horizontal guiding means.
  • the edge of the indent 13, over which the upper handle pivot point 5 passes, is made of a more wear resistant material.
  • the handle locking formation 9 is shaped as an indent and the base locking formation 13 is a locking pin (not shown) protrading from the handle base.
  • the brake handle system comprise a wire roller 18, wherein the wire roller is positioned such that an upper tangent of the wire roller 18 points towards the wire fastener 7 of the handle and the two pivot points of the handle base and preferably also the wire roller are configured in a line mainly parallel to a centerline of the upper part of the frame.
  • the brake wire enters a brake wire casing 15 positioned inside the frame immediately after the wire roller. It is also conceivable that the brake force is mediated by an open wire without wire casing.
  • the rollator is adjustable in height by means of an extendable rollator shaft 19 extending from the top of the frame.
  • the brake wire casing is looped up towards the top of the frame after exiting the interior of the extendable rollator shaft. This must be done to counter the fact that a brake wire casing becomes longer when bent, which is due to the spiral wire in the casing opens on the outer side of a turn while having the same length on the inner side of a turn.
  • the length of the central line of the wire casing is proportional to the accumulated absolute value of the bend angle of the wire casing.

Landscapes

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

Abstract

The invention describes a brake handle system for a rollator (1) with a brake wire (8) inside a frame (2) comprising a user regulated state, and a locked active brake state. The system comprises a handle element (3) and a matching handle base (10) comprising respective upper (11) and lower (12) pivot formations. The system further comprise a pre-tensioned brake wire (8) integrated inside the frame, and connected to the handle element, pulling the handle element (3) towards the handle base (12). The wire roller, directing the brake wire coming from the wire fastener, is positioned such that an upper tangent of the wire roller (16) points towards the wire fastener (7) of the handle element and the two pivot points of the handle base are configured in a line mainly parallel to a centerline of the frame.

Description

Title: Brake handle system for a rollator with a brake wire inside a frame
Field of invention
[0001] This invention relates to support materials for elderly or disabled persons, more specifically to a brake handle system with braking wires integrated inside the frame of the rollator.
Background
[0002] The number and percentage of people using walking aids is increasing in most parts of the world, and the quality of life for these users depends on various support materials. Rollators are one of the most important ones and enables the users to remain independent, and carry out everyday tasks like shopping and move around according to own free will.
[0003] As users become more numerous and the number of firms selling rollators increases issues like design and user friendliness becomes more important. Positioning the brake wires inside the frame of the rollator will provide a cleaner look and also prevent entanglement of the brake wire with objects or the user.
[0004] Having decided to keep the brake wire inside the frame it is a problem that brake systems available are not compact enough to fit inside an upper part of the rollator immediately below the rollator handlebars which preferably is kept fairly slim. The solution to this problem is presented in this application.
Summary of the invention
[0005] The invention relates to brake handle system for a rollator with a brake wire inside a frame comprising a user regulated state, and a locked active brake state. The system further comprises a handle element comprising a grip, an upper and a lower handle pivot point with a wire fastener for a brake wire there between and a handle locking formation. The system furthermore comprise a handle base comprising an upper and a lower pivot formation mating with the upper and lower handle pivot points of the handle, a base locking formation mating with the handle locking formation and a pre-tensioned brake wire integrated inside the frame, and connected to the brake handle, pulling the handle towards the handle base. The system further comprise a left and right vertical guiding means limiting horizontal movement of the handle element and upper and lower horizontal guiding means limiting vertical movement of the handle to remain within the desired brake action movement. [0006] The system further comprise a wire roller, directing the brake wire coming from the wire fastener in a direction downward through the inside of the rollator frame wherein the wire roller is positioned such that an upper tangent of the wire roller (16) points towards the wire fastener (7) of the handle element and the two pivot points of the handle base are configured in a line mainly parallel to a centerline of the frame or extendable rollator shaft, whichever is present.
Brief description of the drawings
[0007] For better understanding of the invention, a set of drawings is provided. Like numerals on different drawings describe the same feature.
Fig. 1 shows a perspective view of the rollator in an unfolded state.
Fig. 2a shows a side view of the brake handle system not activated.
Fig 2b is the same view as 2a with the roller removed to reveal the lower pivot point.
Fig. 3 shows a side view of the brake handle system in the user operated state.
Fig 4a shows a side view of the brake handle system in the locked state.
Fig 4b is the same view as 4a with the roller and wire removed to reveal the lower pivot point. Fig. 5a shows a height adjustable rollator with extendable shaft in a low position.
Fig. 5b shows a height adjustable rollator with extendable shaft in a high position
Detailed description
[0008] When using words like upward, downward, front, back, etc. it is always with respect to an unfolded upright rollator 1 in normal use on a floor as seen in figure 1. The frame of the rollator might be adjustable in height by means of an extendable rollator shaft 19. The rollator shaft should be considered a part of the frame.
[0009] We will now describe a brake handle system for a rollator with a brake wire 8 inside a frame 2. The brake handle system have two states: a user operated state, and a locked active brake state, which may be called a parking brake. The user operates the brakes by means of a handle element 3 comprising a grip 4 for the hand. The handle element also comprises an upper and a lower handle pivot point 5, 6 with a wire fastener 7 for a brake wire 8 positioned there between. In order to produce a locked active brake state a handle locking formation 9 is provided.
[0010] The system further comprise a handle base 10, fixed to or integrated into the upper part of the frame, comprising an upper 11 and a lower 12 pivot formation mating with the upper and lower handle pivot points 5, 6 respectively. Also provided on the handle base is a base locking formation 13 mating with the handle locking formation 9. A pre tensioned brake wire 8 integrated inside the frame is provided. Usually the pre- tension is provided by springs in the brake system near the wheel. The brake wire is connected to the brake handle, pulling the handle towards the handle base. Figure 2a and b shows the brake handle system in a neutral position. Figure 3 shows the brake handle system in a user operated / regulated state and figure 4a and b shows the brake handle system in a locked activated state.
[0011] In order to stabilize the handle element left vertical guiding means 14 and right vertical guiding means (not shown) is provided. The vertical guiding means limits the horizontal movements of the handle and in one embodiment the guiding means are left and right vertical surfaces against which the handle slides when operated. Furthermore upper 16 and lower 17 horizontal guiding means limits vertical movement of the handle to remain within the desired brake action movement. In one embodiment the vertical and horizontal guiding means together form a rectangle in which the brake handle moves.
[0012] In one embodiment the upper handle pivot point 5 and the handle locking formation 9 is the same and the base locking formation 13 is an indent 13 in the upper horizontal guiding means. Advantageously the edge of the indent 13, over which the upper handle pivot point 5 passes, is made of a more wear resistant material. In another embodiment the handle locking formation 9 is shaped as an indent and the base locking formation 13 is a locking pin (not shown) protrading from the handle base.
[0013] The brake handle system comprise a wire roller 18, wherein the wire roller is positioned such that an upper tangent of the wire roller 18 points towards the wire fastener 7 of the handle and the two pivot points of the handle base and preferably also the wire roller are configured in a line mainly parallel to a centerline of the upper part of the frame.
[0014] In one embodiment the brake wire enters a brake wire casing 15 positioned inside the frame immediately after the wire roller. It is also conceivable that the brake force is mediated by an open wire without wire casing.
[0015] In one embodiment the rollator is adjustable in height by means of an extendable rollator shaft 19 extending from the top of the frame. The brake wire casing is looped up towards the top of the frame after exiting the interior of the extendable rollator shaft. This must be done to counter the fact that a brake wire casing becomes longer when bent, which is due to the spiral wire in the casing opens on the outer side of a turn while having the same length on the inner side of a turn. The length of the central line of the wire casing is proportional to the accumulated absolute value of the bend angle of the wire casing.
Inventory
I . Rollator
2. Frame
3. Handle element
4. Grip
5. Upper handle pivot point
6. Lower handle pivot point
7. Wire fastener
8. Brake wire
9. Handle locking formation
10. Handle base
I I . Upper pivot formation
12. Lower pivot formation
13. Base locking formation
14. Left vertical guiding means
15. Wire casing
16. Upper horizontal guiding means
17. Lower horizontal guiding means
18. Wire roller
19. Extendable rollator shaft.

Claims

Claims
1. Brake handle system for a rollator (1) with a brake wire (8) inside a frame (2) comprising: a user regulated state, and
a locked active brake state,
a handle element (3) comprising a grip (4), an upper (5) and a lower (6) handle pivot point with a wire fastener (7) for a brake wire (8) there between and a handle locking formation (9),
a handle base (10) comprising an upper (11) and a lower (12) pivot formation mating with the upper and lower handle pivot points (5, 6) of the handle, a base locking formation (13) mating with the handle locking formation (9), a pre-tensioned brake wire (8) integrated inside the frame, and connected to the handle element, pulling the handle element (3) towards the handle base (12), left (14) and right vertical guiding means limiting horizontal movement of the handle element,
upper (16) and lower (17) horizontal guiding means limiting vertical movement of the handle to remain within the desired brake action movement, and
characterized by a wire roller (18), directing the brake wire coming from the wire fastener (7) in a direction downward through the inside of the rollator frame (2), and wherein the wire roller is positioned such that an upper tangent of the wire roller (16) points towards the wire fastener (7) of the handle element and the two pivot points of the handle base are configured in a line mainly parallel to a centerline of the frame.
2. Brake handle system for a rollator according to claim 1 wherein the handle locking formation (9) is the upper pivot point (5).
3. Brake handle system for a rollator according to claim 1 wherein the base locking formation (13) is an indent in the upper horizontal guiding means.
4. Brake handle system for a rollator according to claim 1 wherein the brake wire enters a brake wire casing (15) positioned inside the frame after the wire roller.
5. Brake handle system for a rollator according to claim 1 wherein the handle locking formation (9) is shaped as an indent and the base locking formation (13) is a locking pin protruding from the handle base.
6. Brake handle system for a rollator according to claim 1 wherein the rollator is adjustable in height by means of an extendable rollator shaft (19) extending from the top of the frame.
7. Brake handle system for a rollator according to claim 6 wherein the brake wire casing is looped up towards the top of the frame after exiting the interior of the frame extension.
PCT/NO2019/050193 2018-09-24 2019-09-24 Brake handle system for a rollator with a brake wire inside a frame Ceased WO2020067903A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20181237 2018-09-24
NO20181237A NO20181237A1 (en) 2018-09-24 2018-09-24 Brake handle system for a rollator with a brake wire inside a frame

Publications (1)

Publication Number Publication Date
WO2020067903A1 true WO2020067903A1 (en) 2020-04-02

Family

ID=69953252

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2019/050193 Ceased WO2020067903A1 (en) 2018-09-24 2019-09-24 Brake handle system for a rollator with a brake wire inside a frame

Country Status (2)

Country Link
NO (1) NO20181237A1 (en)
WO (1) WO2020067903A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11559459B2 (en) 2021-02-16 2023-01-24 Drive Devilbiss Healthcare Rollator
USD976763S1 (en) 2021-02-10 2023-01-31 Drive Devilbiss Healthcare Rollator

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020050697A1 (en) * 2000-09-12 2002-05-02 Bjarki Hallgrimsson Combination walker and transport chair
US20050067804A1 (en) * 2003-09-30 2005-03-31 Ulf Tolfsen Walker with adjustable handlebar
US20070151400A1 (en) * 2006-01-04 2007-07-05 Link Treasure Limited Brake unit for a walking aid
US20080047785A1 (en) * 2006-08-24 2008-02-28 Link Treasure Limited Brake control device for a wheeled walker
US20090194373A1 (en) * 2008-02-04 2009-08-06 Liko Research & Development Ab Brake systems for rollators and rollators comprising the same
US20140076090A1 (en) * 2012-09-19 2014-03-20 Ching-Tsang Wu Hidden braking assembly
WO2018056829A1 (en) * 2016-09-26 2018-03-29 TOPRO Industri AS Three state inverse brake system for rollator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE514269C2 (en) * 1999-04-26 2001-01-29 Etac Ab Brake device for rollators
US8474838B1 (en) * 2012-02-16 2013-07-02 Ching-Tsang Wu Hidden braking device
NL2017896B1 (en) * 2016-11-30 2018-06-11 Posture Tech B V Walking aid assembly with moveable poles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020050697A1 (en) * 2000-09-12 2002-05-02 Bjarki Hallgrimsson Combination walker and transport chair
US20050067804A1 (en) * 2003-09-30 2005-03-31 Ulf Tolfsen Walker with adjustable handlebar
US20070151400A1 (en) * 2006-01-04 2007-07-05 Link Treasure Limited Brake unit for a walking aid
US20080047785A1 (en) * 2006-08-24 2008-02-28 Link Treasure Limited Brake control device for a wheeled walker
US20090194373A1 (en) * 2008-02-04 2009-08-06 Liko Research & Development Ab Brake systems for rollators and rollators comprising the same
US20140076090A1 (en) * 2012-09-19 2014-03-20 Ching-Tsang Wu Hidden braking assembly
WO2018056829A1 (en) * 2016-09-26 2018-03-29 TOPRO Industri AS Three state inverse brake system for rollator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD976763S1 (en) 2021-02-10 2023-01-31 Drive Devilbiss Healthcare Rollator
US11559459B2 (en) 2021-02-16 2023-01-24 Drive Devilbiss Healthcare Rollator
US11766378B2 (en) 2021-02-16 2023-09-26 Drive Devilbiss Healthcare Rollator
USD1077691S1 (en) 2021-02-16 2025-06-03 Medical Depot, Inc. Backrest of a rollator

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