DE3824449A1 - Lever drive for wheelchairs - Google Patents

Lever drive for wheelchairs

Info

Publication number
DE3824449A1
DE3824449A1 DE19883824449 DE3824449A DE3824449A1 DE 3824449 A1 DE3824449 A1 DE 3824449A1 DE 19883824449 DE19883824449 DE 19883824449 DE 3824449 A DE3824449 A DE 3824449A DE 3824449 A1 DE3824449 A1 DE 3824449A1
Authority
DE
Germany
Prior art keywords
drive
lever
shifting
wheelchair
wheelchairs
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Withdrawn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
DE19883824449
Other languages
German (de)
Inventor
Gerhard Olbrich
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19883824449 priority Critical patent/DE3824449A1/en
Publication of DE3824449A1 publication Critical patent/DE3824449A1/en
Withdrawn legal-status Critical Current

Links

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
    • A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
    • A61G5/021—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular propulsion mechanisms
    • A61G5/023—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular propulsion mechanisms acting directly on hubs or axis
    • 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
    • A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
    • A61G5/024—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular operating means
    • A61G5/025—Levers

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)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Abstract

In known lever drives, the drive can only be interrupted if the drive lever (1) is released and the adjustment at the connecting rod (2) is opened. The drive mechanism (3) turns continuously on pushing of the wheelchair. The new drive is displaced in fresh air by shifting the selection lever (4). By shifting the braking lever (6) the wheelchair is braked, in a metered manner if desired. In free running, the connection between the drive mechanism (3) and the drive wheel (6) is interrupted. On rolling of the wheelchair the drive lever (1), the connecting rod (2) and the drive mechanism (3) are at a standstill. This construction permits shifting of the gear and braking without removing the hand from the drive lever. On standstill in the blind angle (A or B) a new drive angle is chosen by shifting with the selection lever (4). The drive is suitable for wheelchairs with one-armed or two-armed operation. <IMAGE>

Description

Die vorliegende Erfindung ist für Ein- oder Zweiarmhebelantriebe gedacht.The present invention is for one- or two-arm lever drives thought.

Wenn man nach Zeichnung Nr. 1 den Antriebshebel Pos. 1 nach vorn und zurück bewegt, so wird das Antriebsrad Pos. 6 über die Pleu­ elstange Pos. 2 und den Antriebsmechanismus Pos. 3, um seinen Um­ fang bewegt.When moving to drawing no. 1, the drive lever Pos. 1 forward and backward, the driving wheel is heading. 6 elstange on the Pleu Pos. 2 and the driving mechanism Pos. 3, to its To catch moves.

Durch den Wahlhebel Pos. 4 für Freilauf und Antrieb wird der An­ trieb ausgeschaltet. Das heißt, wenn der Rollstuhl geschoben wird, schaltet man den Antrieb aus, der Antriebshebel Pos. 1, Pleuel­ stange Pos. 2 und Antriebsmechanismus Pos. 3 kommen zum Stillstand.The drive is switched off by the selector lever pos. 4 for freewheel and drive. This means that when the wheelchair is pushed, the drive is switched off, the drive lever pos. 1 , connecting rod pos. 2 and drive mechanism pos. 3 come to a standstill.

Der Antriebsmechanismus Pos. 3 sitzt auf der Nabe des Antriebsra­ des Pos. 6 und wird durch das Umlegen des Wahlhebels Pos. 4 über Bowdenzug (Seilzug) in Freilauf oder Antrieb versetzt. Das ist das Hauptmerkmal der Erfindung. Zum Beispiel, man kommt zum Stehen, der Antriebshebel, Pleuelstange und Antriebsmechanismus befinden sich im toten Winkel A oder B nach Zeichnung Nr. 1. In diesem Falle kann man auf Freilauf schalten und der Antriebsmechanismus fällt mit dem Eigengewicht aus der ungünstigen Winkelstellung heraus.The drive mechanism pos. 3 sits on the hub of the drive wheel of pos. 6 and is switched to freewheel or drive by moving the selector lever pos. 4 via a Bowden cable. That is the main feature of the invention. For example, you come to a standstill, the drive lever, connecting rod and drive mechanism are in the blind angle A or B according to drawing No. 1. In this case you can switch to freewheeling and the drive mechanism falls out of the unfavorable angular position with its own weight.

Durch Umlegen des Bremshebels Pos. 5 wird der Rollstuhl über Bowden­ zug (Seilzug) und Bremse abgebremst.By turning the brake lever pos. 5 , the wheelchair is braked via Bowden cable (cable) and brake.

Wahlhebel Pos. 4 und Bremshebel Pos. 5 sind im Handgriff des An­ triebshebels Pos. 1 integriert. Durch diese Lösung kann man, ohne daß man die Hand vom Antriebshebel zu nehmen braucht, schalten und bremsen.Selector lever item 4 and brake lever item 5 are integrated in the handle of the drive lever item 1 . With this solution you can switch and brake without having to take your hand off the drive lever.

1 Antriebshebel
2 Pleuelstange
3 Antriebsmechanismus
4 Wahlhebel für Freilauf und Antrieb
5 Bremshebel
6 Antriebsrad 1 drive lever
2 connecting rods
3 drive mechanism
4 selector levers for freewheel and drive
5 brake levers
6 drive wheel

Claims (4)

1. Hebelantrieb für Rollstühle, als Ein- und Zweiarmantrieb.1. Lever drive for wheelchairs, as one and two arm drive. Der Hebelantrieb wird dadurch gekennzeichnet, daß man durch das Umlegen des Wahlhebels (Pos. 4) Zeichnung Nr. 1 den Antrieb ein- und ausschalten kann.The lever drive is characterized in that you can switch the drive on and off by turning the selector lever (item 4 ) drawing no. 2. Hebelantrieb für Rollstühle nach Anspruch 1.2. Lever drive for wheelchairs according to claim 1. Er ist dadurch gekennzeichnet, daß der Wahlhebel in Zeichnung Nr. 1 (Pos. 4) für Freilauf und Antrieb, wie der Bremshebel (Pos. 5) im Handgriff des Antriebshebels (Pos. 1) integriert sind. Ohne daß man die Hand vom Antriebshebel zu nehmen braucht, kann man schalten und bremsen.It is characterized in that the selector lever in drawing no. 1 (item 4 ) for free-wheeling and drive, like the brake lever (item 5 ), is integrated in the handle of the drive lever (item 1 ). You can switch and brake without having to take your hand off the drive lever.
DE19883824449 1988-07-19 1988-07-19 Lever drive for wheelchairs Withdrawn DE3824449A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883824449 DE3824449A1 (en) 1988-07-19 1988-07-19 Lever drive for wheelchairs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883824449 DE3824449A1 (en) 1988-07-19 1988-07-19 Lever drive for wheelchairs

Publications (1)

Publication Number Publication Date
DE3824449A1 true DE3824449A1 (en) 1990-01-25

Family

ID=6359011

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883824449 Withdrawn DE3824449A1 (en) 1988-07-19 1988-07-19 Lever drive for wheelchairs

Country Status (1)

Country Link
DE (1) DE3824449A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6220615B1 (en) * 1998-09-04 2001-04-24 H. F. Brown Machine Co., Inc. Aerobic wheelchair attachment
GB2609486A (en) * 2021-08-05 2023-02-08 Johnstone Steven Lever propulsion system for self-propelled wheelchair

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6220615B1 (en) * 1998-09-04 2001-04-24 H. F. Brown Machine Co., Inc. Aerobic wheelchair attachment
GB2609486A (en) * 2021-08-05 2023-02-08 Johnstone Steven Lever propulsion system for self-propelled wheelchair
GB2609486B (en) * 2021-08-05 2023-09-20 Johnstone Steven Retrofit lever propulsion system for self-propelled wheelchair

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