DE102004036864A1 - Trolley used as walking aid, has trolley frame used for friction-coupling and interconnecting wheel forks of front wheels with wheel forks of rear wheels - Google Patents
Trolley used as walking aid, has trolley frame used for friction-coupling and interconnecting wheel forks of front wheels with wheel forks of rear wheels Download PDFInfo
- Publication number
- DE102004036864A1 DE102004036864A1 DE200410036864 DE102004036864A DE102004036864A1 DE 102004036864 A1 DE102004036864 A1 DE 102004036864A1 DE 200410036864 DE200410036864 DE 200410036864 DE 102004036864 A DE102004036864 A DE 102004036864A DE 102004036864 A1 DE102004036864 A1 DE 102004036864A1
- Authority
- DE
- Germany
- Prior art keywords
- wheel
- trolley according
- axis
- wheel forks
- friction
- 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- Withdrawn
Links
- 238000010168 coupling process Methods 0.000 title abstract description 19
- 238000005859 coupling reaction Methods 0.000 title abstract description 19
- 239000010985 leather Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 description 17
- 229910001111 Fine metal Inorganic materials 0.000 description 1
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
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0036—Castors in general; Anti-clogging castors characterised by type of wheels
- B60B33/0039—Single wheels
-
- 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
- B60B33/006—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
- B60B33/0073—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being symmetrical to wheel or wheels
-
- 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
- B60B33/025—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism by using form-fit, e.g. front teeth
-
- 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
- B60B33/028—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism being actuated automatically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/001—Steering devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Veterinary Medicine (AREA)
- Pain & Pain Management (AREA)
- Epidemiology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Handcart (AREA)
Abstract
Description
Die Erfindung betrifft einen Wagen zum Schieben von Hand, insbesondere Gehhilfewagen, mit vier drehbar in Radgabeln gelagerten Rädern, von denen die Vorderräder und/oder die Hinterräder mit ihren Radgabeln je um eine vertikale Drehachse am Wagengestell verdrehbar gelagert sind.The The invention relates to a cart for pushing by hand, in particular Walker wagon, with four wheels rotatably mounted in wheel forks, from those the front wheels and / or the rear wheels with their wheel forks ever about a vertical axis of rotation on the carriage frame rotatable are stored.
Um solche Wagen leicht lenken zu können, besitzen diese mindestens zwei in Radgabeln drehbare Räder. Durch das Schieben stellen sich die Räder in Bewegungsrichtung. Dies wird durch den Versatz der Räder gegenüber der Drehachse mittels gekröpfter Radgabeln erreicht. Wenn eines der drehbaren Räder den Bodenkontakt verliert, stellt es sich leicht quer, entsprechend seines Gewichtes und der momentanen Neigung der Drehachse. Wenn nun der Wagen weiter geschoben wird und das Rad wieder Bodenkontakt besitzt, hindert das quergestellte Rad das leichte Vorschieben und es muss eine größere Kraft aufgewendet werden, um das Rad wieder in Bewegungsrichtung zu stellen. Dies ist besonders bei Gehhilfewagen eine hinderliche Eigenschaft des Wagens.Around own such cars easy to steer these at least two wheel rotatable wheels. By pushing the wheels in the direction of movement. This is offset by the offset of the wheels Rotary axis by means of cranked Reached wheel forks. If one of the rotatable wheels loses contact with the ground, it turns slightly crosswise, according to its weight and the momentary Inclination of the axis of rotation. If now the cart is pushed further and the wheel again has contact with the ground, hinders the transverse Rad the easy advance and it must be spent a greater force to put the wheel back in the direction of movement. This is special in Gehhilfewagen an obstacle property of the car.
Es ist Aufgabe der Erfindung, die um eine vertikale Achse drehbaren Räder eines geschobenen Wagens so zu koppeln, dass sie sich bei Verlust des Bodenkontaktes nicht querstellen.It is an object of the invention, which rotatable about a vertical axis Wheels of one coupled cart so that they are lost in contact with the ground do not cross.
Gelöst wird diese Aufgabe dadurch, dass die Radgabeln der Vorderräder und oder die Radgabeln der Hinterräder reibgekuppelt miteinander verbunden sind.Is solved this task in that the wheel forks of the front wheels and or the wheel forks of the rear wheels reibgekuppelt connected to each other.
Eine vorteilhafte Ausführungsform der Erfindung ist in den Unteransprüchen angegeben.A advantageous embodiment the invention is specified in the subclaims.
Wenn die um eine vertikale Achse drehbaren Räder eines Wagens den Bodenkontakt verlieren, stellen sie sich in eine Richtung, die durch die momentane Neigung der Drehachse bestimmt ist. Wenn das Rad mit dem parallelen Rad gekoppelt ist, behält es den momentanen Winkel zum parallelen Rad und stellt sich nicht quer. Dabei genügt eine relativ kleine Kraft, um die Kraftkomponente aus dem Gewicht des Rades und der Neigung der Drehachse zu kompensieren. Diese Kraft wird vorteilhafterweise als Reibkraft, abhängig von dem parallelen drehbaren Rad, aufgebracht. Die Räder dürfen nicht starr gekoppelt werden, da sich der Winkel der Räder zueinander beim Kurvenfahren ändert, und diese Winkeländerung nicht behindert werden soll.If the wheels of a car rotating about a vertical axis make contact with the ground lose, put yourself in a direction by the momentary Inclination of the rotation axis is determined. When the wheel with the parallel Wheel is coupled, it retains the current angle to the parallel wheel and does not cross. It is enough a relatively small force to the force component of the weight compensate for the wheel and the inclination of the axis of rotation. This power is advantageously referred to as frictional force, depending on the parallel rotatable Wheel, upset. The wheels allowed to not rigidly coupled, since the angle of the wheels to each other Cornering changes, and this angle change should not be hindered.
Eine einfache Art, eine Reibkraft vom parallelen Rad zu übertragen, besteht in der Kopplung über einen umlaufenden Zahnriemen, der über Zahnscheiben, die mit der Drehachse der Radgabel reibschlüssig verbunden sind, geführt ist. Dabei genügt es, dass nur eine Zahnscheibe reibschlüssig mit der Radgabel verbunden ist. Die Kraft wird in jedem Fall von dem geführten Rad auf das freie Rad übertragen.A simple way to transfer a frictional force from the parallel wheel, exists in the coupling over a revolving toothed belt, which has toothed pulleys with the Rotary axis of the wheel fork frictionally engaged connected, guided is. It is sufficient that only one toothed disc frictionally connected to the wheel fork is. The force is in any case transferred from the guided wheel to the free wheel.
Normalerweise sind die Drehachsen der Radgabeln in gestellseitigen Buchsen gelagert. Hier ergibt sich eine einfache reibschlüssige Kopplung von der Zahnscheibe mit der Drehachse, indem die Zahnscheibe um die Drehachse gelegt ist und sich mit dieser reibt.Usually the axes of rotation of the forks are stored in frame-side bushes. This results in a simple frictional coupling of the toothed disc with the axis of rotation by placing the toothed disc around the axis of rotation is and rubs with this.
In einer anderen Ausführungsform sind sie Radgabeln mit einer Buchse versehen, die sich um eine gestellseitige Achse drehen. Hier ergibt sich eine einfache reibschlüssige Kopplung von der Zahnscheibe mit der Buchse, indem die Zahnscheibe um die Drehachse gelegt ist und sich auf der Buchse liegend mit dieser reibt.In another embodiment They are equipped with a bushing, which is around a frame side Turn axis. This results in a simple frictional coupling from the toothed pulley to the bush, placing the toothed disc around the Rotary axis is laid and lying on the socket with this rubs.
Eine andere Kopplung der Räder wird über einen umlaufenden glatten Riemen erreicht, der auf Riemenscheiben um die Drehachsen der Radgabeln läuft. Dabei wird die Reibkraft auf die gleiche An übertragen, wie bei der Ausführung mit dem Zahnriemen. Vorteilhafterweise werden solche glatten Riemen aus Leder hergestellt. Es ist für das Entstehen der Reibkraft allerdings erforderlich, dass der Riemen eine Spannung besitzt. Diese Spannung wird durch eine federbelastete Rolle aufgebracht, die auf den Riemen drückt.A other coupling of the wheels is about one circumferential smooth belt reached on pulleys around the Rotary axes of the wheel forks is running. The friction force is transferred to the same An, as in the execution with the timing belt. Advantageously, such smooth belts made of leather. It is for However, the emergence of frictional force required that the belt has a voltage. This tension is caused by a spring-loaded Roll applied, which presses on the belt.
In einer weiteren Ausführung ist der umlaufende Riemen als eine gewendelte Metallfeder ausgebildet. Er läuft über die Riemenscheiben, wie in der Ausführung mit dem glatten Riemen. Die der gewendelten Feder innewohnende Kraft baut die notwendige Reibkraft auf.In another embodiment the circumferential belt is formed as a coiled metal spring. He runs over the Pulleys, as in the execution with the smooth belt. The force inherent in the coiled spring builds up the necessary frictional force.
Wenn für die Kopplung der Drehachsen eine Bowdenwelle genutzt wird, liegen keine beweglichen Teile der Kopplungsmechanik offen, die beim Gebrauch des Wagens gestört oder beschädigt werden könnten. Die Seele der Bowdenwelle ist dabei auf der einen Seite mit der Drehachse der Radgabel fest verbunden und auf der anderen Seite an die Drehachse der Radgabel reibschlüssig gekoppelt. Dabei erfolgt die Reibkopplung mit einer Drehrichtungsumkehr, damit die Räder nicht auseinander laufen. Die Reibkopplung mit Drehrichtungsumkehr wird sehr einfach durch ein, an der Seele der Bowdenwelle befestigtes Reibrad erzeugt, dass sich mit der Drehachse der Radgabel reibt. Der Mantel der Bowdenwelle ist fest mit dem Gestell des Wagens verbunden und kann so verlegt werden, dass die Bowdenwelle beim gebrauch des Wagens nicht stört.If for the Coupling the axes of rotation is used a Bowden shaft, are not moving parts of the coupling mechanism open during use of the car disturbed or damaged could become. The soul of the Bowden wave is on the one hand with the Rotary axis of the wheel fork firmly connected and on the other side frictionally coupled to the axis of rotation of the wheel fork. In doing so, the Friction coupling with a reversal of direction, so that the wheels are not diverge. The friction coupling with reversal of direction is very easy by a, attached to the soul of the Bowden shaft friction wheel generates that rubs with the axis of rotation of the wheel fork. The coat The Bowden shaft is firmly connected to the frame of the car and can be routed so that the bowden shaft when using the car does not bother.
Die Seele einer Bowdenwelle ist typischerweise aus feinen Metalldrähten hergestellt. Wenn diese Drähte nicht nur gedreht, sondern auch miteinander verflochten sind, ergibt sich eine besondere Torsionsfestigkeit der Seele und sie ist sehr verschleißfest.The The soul of a bowden wave is typically made of fine metal wires. If these wires not only rotated, but also intertwined results a particular torsional strength of the soul and she is very wear resistant.
Eine Ausführungsform der Erfindung ist beispielhaft in den Figuren beschrieben.A embodiment The invention is described by way of example in the figures.
In
In
In
- 11
- Wagendare
- 22
- Erstes drehbares Radfirst rotatable wheel
- 33
- Zweites drehbares Radsecond rotatable wheel
- 44
- Feststehendes Radfixed wheel
- 55
- Feststehendes Radfixed wheel
- 66
- Kupplungsriemencoupling belt
- 77
- Zahnscheibe mit Reibkupplungtoothed washer with friction clutch
- 88th
- Zahnscheibe festtoothed washer firmly
- 99
- BowdenwelleBowden wave
- 1010
- Reibradfriction wheel
- 1111
- Erste HalterungFirst bracket
- 1212
- Zweite HalterungSecond bracket
- 1313
- Spannbandstrap
- 21, 3121 31
- Radgabelnforks
- 22, 3222 32
- Buchsensockets
- 23, 3323 33
- Drehachsenrotational axes
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410036864 DE102004036864A1 (en) | 2004-07-29 | 2004-07-29 | Trolley used as walking aid, has trolley frame used for friction-coupling and interconnecting wheel forks of front wheels with wheel forks of rear wheels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410036864 DE102004036864A1 (en) | 2004-07-29 | 2004-07-29 | Trolley used as walking aid, has trolley frame used for friction-coupling and interconnecting wheel forks of front wheels with wheel forks of rear wheels |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004036864A1 true DE102004036864A1 (en) | 2006-02-16 |
Family
ID=35668651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410036864 Withdrawn DE102004036864A1 (en) | 2004-07-29 | 2004-07-29 | Trolley used as walking aid, has trolley frame used for friction-coupling and interconnecting wheel forks of front wheels with wheel forks of rear wheels |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004036864A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2907496A1 (en) * | 2014-02-14 | 2015-08-19 | Trionic Sverige AB | Collapsible wheeled support or carrier |
EP3569214A1 (en) * | 2018-05-15 | 2019-11-20 | Edgar Klitsch | Vehicle |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0375891B1 (en) * | 1988-12-28 | 1992-10-28 | New Technologies Srl | Reciprocal attitude-angle self-differentiating device for pivotable wheels of handtrucks |
EP0624357A1 (en) * | 1993-03-12 | 1994-11-17 | Albani, Carlo, Dr. | Walking aid |
-
2004
- 2004-07-29 DE DE200410036864 patent/DE102004036864A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0375891B1 (en) * | 1988-12-28 | 1992-10-28 | New Technologies Srl | Reciprocal attitude-angle self-differentiating device for pivotable wheels of handtrucks |
EP0624357A1 (en) * | 1993-03-12 | 1994-11-17 | Albani, Carlo, Dr. | Walking aid |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2907496A1 (en) * | 2014-02-14 | 2015-08-19 | Trionic Sverige AB | Collapsible wheeled support or carrier |
WO2015121264A1 (en) * | 2014-02-14 | 2015-08-20 | Trionic Sweden Ab | Collapsible wheeled support or carrier |
CN106170277A (en) * | 2014-02-14 | 2016-11-30 | 特莱翁尼克瑞典有限公司 | Folding wheeled supporter or carrier |
JP2017511709A (en) * | 2014-02-14 | 2017-04-27 | トリオニック スベリエ アクチエボラグ | Foldable wheeled aid or transport device |
US9821827B2 (en) | 2014-02-14 | 2017-11-21 | Trionic Sverige Ab | Collapsible wheeled support or carrier |
CN106170277B (en) * | 2014-02-14 | 2019-08-20 | 特莱翁尼克瑞典有限公司 | Folding wheeled supporter or carrier |
EP3569214A1 (en) * | 2018-05-15 | 2019-11-20 | Edgar Klitsch | Vehicle |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8139 | Disposal/non-payment of the annual fee |