EP1136054B1 - Stand device for crutch - Google Patents

Stand device for crutch Download PDF

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Publication number
EP1136054B1
EP1136054B1 EP01105542A EP01105542A EP1136054B1 EP 1136054 B1 EP1136054 B1 EP 1136054B1 EP 01105542 A EP01105542 A EP 01105542A EP 01105542 A EP01105542 A EP 01105542A EP 1136054 B1 EP1136054 B1 EP 1136054B1
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EP
European Patent Office
Prior art keywords
rod
support legs
handle
connecting rod
force transmission
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.)
Expired - Lifetime
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EP01105542A
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German (de)
French (fr)
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EP1136054A1 (en
Inventor
Marga Schlosser
Hubert Scheitenberger
Christian Gronbach
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Individual
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Individual
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Priority claimed from DE20004158U external-priority patent/DE20004158U1/en
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Publication of EP1136054A1 publication Critical patent/EP1136054A1/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL 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
    • A61H3/00Appliances for aiding patients or disabled persons to walk about
    • A61H3/02Crutches
    • A61H3/0244Arrangements for storing or keeping upright when not in use
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL 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
    • A61H3/00Appliances for aiding patients or disabled persons to walk about
    • A61H3/02Crutches
    • A61H3/0244Arrangements for storing or keeping upright when not in use
    • A61H2003/0272Arrangements for storing or keeping upright when not in use on a single crutch allowing it to remain upright when not in use, e.g. retractable tripods

Definitions

  • crutches must be placed on the floor when not in use or on pieces of furniture or Walls should be ajar, keeping as close as possible to reuse to facilitate. Therefore, a stand device for crutches is helpful and facilitates their Handling.
  • EP 0 958 803 A1 is a crutch in length adjustable design with a Stand device known.
  • the actuation takes place via an outside of the rod Power transmission in conjunction with a locking mechanism, the one-hand operation of the Stand device allowed from the handle. Because of the exposed construction is a Damage to the power transmission can not be excluded.
  • the invention is therefore based on the object, a safe to use crutches previously mentioned type, which is adjustable in length and at the same time a special easy and ergonomic handling possible.
  • the handling element of the stand device close to the handle of the crutch can be arranged so that advantageously a one-handed operation of the stand device is possible.
  • the crutch consists essentially of a two-part, adjustable length rod 11a, b, a attached to the upper end handle 12 with an associated lower arm rail 13 and a Foot body 4.
  • the stand device has two short, pivotable about pivot bearing 10, cup-shaped Support legs 3a, b, which form a three-point support together with the foot 4 in the unfolded state, and a the support legs with an actuator 1 connecting, adjustable length Pull rod 2 on.
  • the pull rod is associated with a detent mechanism 5 shown enlarged in Fig. 4, whose Structure and function will be explained later in connection with FIG. 5.
  • a detent mechanism 5 shown enlarged in Fig. 4, whose Structure and function will be explained later in connection with FIG. 5.
  • the upper clamp 6a has a continuous longitudinal bore for guiding the pull rod second and a slot for a connected to the drawbar pin to prevent rotation Pull bar.
  • the pivot bearing 10 of the support legs 3a, b At the lower clamp 6b are the pivot bearing 10 of the support legs 3a, b.
  • the lower clamp has a serving as a guide tube 20 for the pull rod 2 Longitudinal bore on.
  • the structure and the function of the in Ballpoint pens used latching mechanism is similar. It consists in detail of one above the compression spring 9 formed on the tie rod, upwardly directed wedge-shaped Gearing and a likewise axially displaceable in the guide tube, from the pull rod axially movably engaged detent sleeve 22, which at its lower edge also a wedge-shaped Has teeth. On the upper edge exercises one on an integrally formed on the pull rod Federal supporting compression spring 15 constantly a downward force.
  • the guide tube 20 There are several radially inwardly projecting longitudinal wedges 21 and webs. Corresponding to these longitudinal webs are axially extending in the latching sleeve and the tie rod Grooves formed.
  • the locking sleeve is lifted from the longitudinal wedges, again partially rotated and then slides - due to the force of the spring 9 - between the longitudinal wedges axially downward, wherein the support legs 3a, b are folded by the spring 9 to the rod 11a.
  • the handle 1 formed on the pull rod 2 is located just below the handle 12 and may be from the fingers of a resting on the handle 12 hand be detected conveniently.
  • the Support legs are unfolded and can be folded up again by pulling the handle again, whereby a simple one-hand operation of the stand device is given.
  • the already mentioned locking mechanism 5 can also be integrated in the region of the upper clamp 6a. This leads to an ergonomically improved weight distribution of the stand device on the Walker.
  • Fig. 6 shows a modified embodiment, in which the actuating mechanism which is in principle the same in the hollow rod 11a, b is integrated. All components with the same function are denoted by the same reference numerals provided as in the previous figures.
  • the lower rod half 11b now also forms the guide tube 20, in which all other Items of otherwise unchanged locking mechanism 5 are housed.
  • the pivot bearing 10 of the support legs 3a, b of the rod center axis radially further spaced out mounted.
  • Near the Swivel bearing 10 are two vertical slots 25 ( Figure 7) in the guide tube 20, that of the positively connected with the rack 7 in connection Tooth segments 8 are penetrated.
  • FIG. 8 A modification of the embodiment shown in FIG. 6 is the subject of FIG. 8.
  • a hydraulic Power transmission used. It consists of a close to the handle 12 arranged Master cylinder 30, a positioned in the bar 11b above the locking mechanism 5 Working cylinder 33 and a pressure-tightly connecting the two said cylinder Line 35.
  • This line 35 may at least partially as a spiral tube be executed, whereby a smooth length adjustment of the rod 11 possible is.
  • Fig. 11 an embodiment of a length adjustment for adjusting a similar to Fig. 6 executed crutches shown on the body size of a user.
  • This rod 2b in turn is against rotation connected to the tube half 11b.
  • the rod 1b On the rod 11b and the tube 2a are located in Axially extending rows of holes with a uniform grid of holes, the rod 1b is equipped with two circumferentially offset by 180 degrees rows of holes.
  • the upper bar 11a are two pivot bracket 40 with radially inward protruding, congruent holes in the bar halves 11 a and 11 b cross Journal 41 mounted by pressing the swivel bracket 40 with the holes of the inwardly guided rod half 11b can be disengaged, then both Bar halves relative to the axial direction to move to the new length.
  • Control surface 43 having radially displaceable in the bar 2b guided pin 42 against the force of the pin acting in the direction of the tube 2a compression spring 44th Move radially inward so far that the pin stops with a hole in the pipe 2a is engaged.
  • the pin 42 by a opposite rotation of the rod halves 11 a and 11 b in its now newly assigned hole Engage in the tube 2a, while the pins 41 also in their new associated holes in the rod half 11b by releasing the swivel bracket 40th intervention.
  • the length adjustment described has only exemplary character, because to fulfill the same task and modified versions are conceivable.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (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)

Abstract

The actuator (1) for unfolding or folding away the support leg (3a, 3b) is located close to the crutch handle (12) and is connected to the leg via a ratchet mechanism (5), so that the folding mechanism for the leg can be operated using one finger of the hand gripping the handle.

Description

Gehstützen (Krücken) müssen bei Nichtgebrauch am Boden abgelegt oder an Möbelstücke oder Wände angelehnt werden, wobei sie möglichst in Griffweite bleiben sollten, um die Wiederbenutzung zu erleichtern. Deshalb ist eine Standvorrichtung für Gehstützen hilfreich und erleichtert deren Handhabung.Crutches (crutches) must be placed on the floor when not in use or on pieces of furniture or Walls should be ajar, keeping as close as possible to reuse to facilitate. Therefore, a stand device for crutches is helpful and facilitates their Handling.

Durch CH 688175 A5 ist eine Gehstütze mit einer Standvorrichtung bekannt, deren Betätigungsmechanismus in den hohlen Stab der Gehstütze integriert ist. Nachteiligerweise sind zur Betätigung beide Hände erforderlich.By CH 688175 A5 a crutch with a stand device is known whose Actuating mechanism is integrated into the hollow bar of the crutch. Disadvantageously, both hands are required for operation.

Außerdem sind bereits Standvorrichtungen vorgeschlagen worden, die außen an einer konventionellen Gehstütze als Bausatz angebracht werden können. Eine entsprechende Vorrichtung ist aus den Figuren 17 bis 20 der französischen Offenlegungsschrift 2603479 bekannt. Ungünstig ist der Umstand, dass zur Betätigung dieser Standvorrichtung zwei Hände erforderlich sind, was gerade von gehbehinderten Personen als großer Nachteil empfunden wird.In addition, prior devices have been proposed, the outside of a conventional Crutch can be attached as a kit. A corresponding device is off Figures 17 to 20 of the French Laid-Open Publication 2603479 known. Unfavorable is the The fact that two hands are needed to operate this stand device, which is straight handicapped persons is perceived as a major drawback.

Aus EP 0 958 803 A1 ist eine Gehstütze in längenverstellbarer Ausführung mit einer Standvorrichtung bekannt. Die Betätigung erfolgt über eine außen am Stab verlaufende Kraftübertragung in Verbindung mit einer Rastrnechanik, die eine Einhandbedienbarkeit der Standvorrichtung vom Handgriff aus erlaubt. Wegen der offenliegenden Bauweise ist eine Beschädigung der Kraftübertragung nicht ausschließbar.From EP 0 958 803 A1 is a crutch in length adjustable design with a Stand device known. The actuation takes place via an outside of the rod Power transmission in conjunction with a locking mechanism, the one-hand operation of the Stand device allowed from the handle. Because of the exposed construction is a Damage to the power transmission can not be excluded.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine gebrauchssichere Gehstütze der vorhergehend genannten Art anzugeben, die längenverstellbar ist und zugleich eine besonders einfache und ergonomische Handhabung ermöglicht.The invention is therefore based on the object, a safe to use crutches previously mentioned type, which is adjustable in length and at the same time a special easy and ergonomic handling possible.

Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale des Anspruchs 1.This problem is solved by the characterizing features of claim 1.

Da im Gegensatz zum bekannten Stand der Technik zur Betätigung der Standvorrichtung keine Schwenkbewegung, sondern aufgrund der neuerungsgemäßen Mechanik lediglich eine Zugbewegung notwendig ist, kann das Handhabungselement der Standvorrichtung nahe am Griff der Gehstütze angeordnet werden, so dass vorteilhafterweise eine Einhandbedienung der Standvorrichtung möglich ist.As in contrast to the prior art for the operation of the stand device no Pivoting movement, but due to the mechanism according to the innovation only a pulling movement is necessary, the handling element of the stand device close to the handle of the crutch can be arranged so that advantageously a one-handed operation of the stand device is possible.

Nachfolgend werden Ausführungsbeispiele anhand von Figuren erläutert. Es zeigt:

Fig. 1
in der linken Abbildung eine Seitenansicht einer Gehstütze mit hochgeklappten Stützbei nen (Bereitschaftsstellung) und in der rechten Abbildung mit ausgeklappten Stützbeinen (Standposition),
Fig. 2.
eine vertikale Draufsicht (vergrößert) auf den unteren Bereich der Gehstütze in der Bereit schaftsstellung,
Fig. 3
eine Draufsicht auf den unteren Bereich der Gehstütze in der Standposition,
Fig.
4 jeweils eine vergrößerte Seitenansicht mit teilweiser Schnittdarstellung des unteren Bereichs der Standvorrichtung und der Gehstütze in beiden Stellungen analog zu Fig.1,
Fig. 5
das Rastprinzip der in der Standvorrichtung verwendeten Rastmechanik, dargestellt als Ab wicklung.
Fig. 6
in der linken Abbildung eine Seitenansicht in teilweiser Schnittdarstellung einer zweiten Ausführungsform einer Gehstütze mit ausgeklappten Stützbeinen (Standposition) und in der rechten Abbildung mit hochgeklappten Stützbeinen (Bereitschaftsstellung),
Fig. 7
eine vergrößerte Ansicht des unteren Bereichs der Gehstütze nach Fig. 6 in der Standposition,
Fig. 8
eine erfindungsgemäße Ausführungsform einer Gehstütze entsprechend der Fig. 6 mit einer hydraulischen Kraftübertragungseinrichtung,
Fig. 9
eine vergrößerte Ansicht des oberen Bereichs der Gehstütze nach Fig. 8,
Fig. 10
eine vergrößerte Ansicht des unteren Bereichs der Gehstütze nach Fig. 8 und
Fig. 11
einen Längenverstellmechanismus einer erfindungsgemäßen Gehstütze mit innenliegender Kraftübertragung in einem axialen Teilschnitt und einem Radialschnitt in vergrößerter Darstellung.
Embodiments will be explained with reference to figures. It shows:
Fig. 1
in the left figure a side view of a crutch with folded Stützbei NEN (standby position) and in the right figure with folded-out support legs (standing position),
Fig. 2.
a vertical plan view (enlarged) on the lower portion of the crutch in the standby position,
Fig. 3
a top view of the lower portion of the crutch in the standing position,
FIG.
4 shows an enlarged side view with a partial sectional view of the lower area of the standing device and the crutch in both positions analogously to FIG. 1,
Fig. 5
the locking principle of the latching mechanism used in the stand device, shown as development from.
Fig. 6
in the left figure a side view in partial sectional view of a second embodiment of a crutch with folded-out support legs (standing position) and in the right figure with folded support legs (standby position),
Fig. 7
an enlarged view of the lower portion of the crutch according to Fig. 6 in the standing position,
Fig. 8
an embodiment according to the invention of a crutch according to FIG. 6 with a hydraulic power transmission device,
Fig. 9
an enlarged view of the upper portion of the crutch according to Fig. 8,
Fig. 10
an enlarged view of the lower portion of the crutch according to Fig. 8 and
Fig. 11
a Längenverstellmechanismus a crutch according to the invention with internal power transmission in an axial partial section and a radial section in an enlarged view.

Die Gehstütze besteht im wesentlichen aus einem zweiteiligen, längeneinstellbaren Stab 11a,b, einem am oberen Ende befestigten Griff 12 mit einer zugeordneten Unterarmschiene 13 und einem Fußkörper 4.The crutch consists essentially of a two-part, adjustable length rod 11a, b, a attached to the upper end handle 12 with an associated lower arm rail 13 and a Foot body 4.

Die Standvorrichtung weist zwei kurze, um Schwenklager 10 klappbare, schalenförmig ausgebildete Stützbeine 3a,b, die im ausgeklappten Zustand zusammen mit dem Fuß 4 eine Dreipunktstütze bilden, und eine die Stützbeine mit einem Betätigungselement 1 verbindende, längeneinstellbare Zugstange 2 auf. Der Zugstange ist eine in Fig. 4 vergrößert dargestellte Rastmechanik 5 zugeordnet,deren Aufbau und Funktion später noch in Verbindung mit der Fig. 5 erläutert wird. Durch ihre Schalenform liegen die Stützbeine in der Bereitschaftsstellung günstigerweise eng am Stab 11a an (Fig.2).The stand device has two short, pivotable about pivot bearing 10, cup-shaped Support legs 3a, b, which form a three-point support together with the foot 4 in the unfolded state, and a the support legs with an actuator 1 connecting, adjustable length Pull rod 2 on. The pull rod is associated with a detent mechanism 5 shown enlarged in Fig. 4, whose Structure and function will be explained later in connection with FIG. 5. Through her Shell shape are the support legs in the standby position conveniently close to the rod 11a (Fig.2).

Zur Befestigung der Standvorrichtung sind zwei Klemmschellen 6a,b vorhanden, wobei die Klemmschelle 6a am oberen Stab 11a und die Klemmschelle 6b nahe dem Fuß 4 am unteren Stab 11b angebracht ist.To fix the stand device two clamps 6a, b are present, the Clamp 6a on the upper rod 11a and the clamp 6b near the foot 4 on the lower rod 11b is attached.

Die obere Klemmschelle 6a besitzt eine durchgehende Längsbohrung zur Führung der Zugstange 2 und ein Langloch für einen mit der Zugstange verbundenen Zapfen zur Verdrehsicherung der Zugstange. An der untere Klemmschelle 6b befinden sich die Schwenklager 10 der Stützbeine 3a,b. Auch die untere Klemmschelle weist eine als Führungsrohr 20 für die Zugstange 2 dienende Längsbohrung auf.The upper clamp 6a has a continuous longitudinal bore for guiding the pull rod second and a slot for a connected to the drawbar pin to prevent rotation Pull bar. At the lower clamp 6b are the pivot bearing 10 of the support legs 3a, b. The lower clamp has a serving as a guide tube 20 for the pull rod 2 Longitudinal bore on.

Am unteren Ende der Zugstange ist eine umfänglich verlaufend ausgebildete Zahnstange 7 angeformt, in die an den Stützbeinen 3a,b vorhandene Zahnsegmente 8 formschlüssig eingreifen. Oberhalb dieser Zahnstange befindet sich im Führungsrohr 20 eine die Zugstange 2 permanent nach unten beaufschlagende Druckfeder 9 (Fig.4).At the lower end of the pull rod a circumferentially extending toothed rack 7 is formed, engage positively in the existing on the support legs 3a, b toothed segments 8. Above This rack is located in the guide tube 20, a pull rod 2 permanently after below acting compression spring 9 (Figure 4).

Im Bereich über der genannten Druckfeder ist die bereits erwähnte Rastmechanik 5 im oberen Abschnitt des Führungsrohres 20 angeordnet, die vom Aufbau und der Funktion her der in Kugelschreibern verwendeten Rastmechanik ähnlich ist. Sie besteht im Einzelnen aus einer oberhalb der Druckfeder 9 an der Zugstange angeformten, nach oben gerichteten keilförmigen Verzahnung und einer ebenfalls im Führungsrohr axial verschiebbaren, von der Zugstange axial beweglich durchgriffenen Rasthülse 22, die an ihrem unteren Rand auch eine keilförmige Verzahnung besitzt. Auf den oberen Rand übt eine sich an einem an der Zugstange angeformten Bund abstützende Druckfeder 15 ständig eine nach unten gerichtete Kraft aus. Im Führungsrohr 20 befinden sich mehrere radial nach innen vorspringende Längskeile 21 bzw. -stege. Korrespondierend zu diesen Längsstegen sind in der Rasthülse und der Zugstange axial verlaufende Nuten eingeformt.In the area above said compression spring the already mentioned locking mechanism 5 in the upper section arranged the guide tube 20, the structure and the function of the in Ballpoint pens used latching mechanism is similar. It consists in detail of one above the compression spring 9 formed on the tie rod, upwardly directed wedge-shaped Gearing and a likewise axially displaceable in the guide tube, from the pull rod axially movably engaged detent sleeve 22, which at its lower edge also a wedge-shaped Has teeth. On the upper edge exercises one on an integrally formed on the pull rod Federal supporting compression spring 15 constantly a downward force. In the guide tube 20 There are several radially inwardly projecting longitudinal wedges 21 and webs. Corresponding to these longitudinal webs are axially extending in the latching sleeve and the tie rod Grooves formed.

Die Form der genannten Verzahnungen und deren Funktion ist aus der schematischen Figurenfolge der Fig. 5 erkennbar bzw. anschaulich nachvollziehbar. Wird die Rasthülse durch die Zugstange über den oberen Rand der Längskeile im Führungsrohr angehoben, wird sie durch das Zusammenwirken der schrägen Verzahnungsflächen und den axial wirkenden Druck der von oben auf die Rasthülse drückenden Feder 15 teilweise gedreht und stützt sich schließlich auf den Längskeilen eingerastet ab (Standposition der Gehstütze). Hierbei stützt sich auch die Zugstange mit einem an ihr angeformten Anschlag, beispielsweise als Absatz ausgeführt, an der Rasthülse ab. Durch neuerliches Anziehen der Zugstange wird die Rasthülse von den Längskeilen abgehoben, wieder teilweise gedreht und gleitet dann - bedingt durch die Kraft der Feder 9 - zwischen den Längskeilen axial nach unten, wobei die Stützbeine 3a,b von der Feder 9 an den Stab 11a geklappt werden.The shape of said gears and their function is from the schematic sequence of figures 5 recognizable or clearly understandable. Will the locking sleeve through the tie rod lifted above the upper edge of the longitudinal wedges in the guide tube, it is due to the interaction the oblique tooth surfaces and the axially acting pressure from the top of the Snap sleeve pushing spring 15 partially rotated and finally relies on the longitudinal wedges locked off (standing position of the crutch). This also supports the drawbar with a her molded stop, for example, executed as a paragraph on the locking sleeve. By renewed tightening the drawbar, the locking sleeve is lifted from the longitudinal wedges, again partially rotated and then slides - due to the force of the spring 9 - between the longitudinal wedges axially downward, wherein the support legs 3a, b are folded by the spring 9 to the rod 11a.

Wie aus der Fig. 1 zu erkennen ist, befindet sich die an der Zugstange 2 angeformte Handhabe 1 dicht unterhalb des Griffs 12 und kann von den Fingern einer auf dem Griff 12 aufliegenden Hand bequem erfasst werden. Durch einmaliges Heranziehen der Handhabe an den Griff können die Stützbeine ausgeklappt und durch erneutes Ziehen der Handhabe wieder hochgeklappt werden, wodurch eine einfache Einhandbedienbarkeit der Standvorrichtung gegeben ist.As can be seen from FIG. 1, the handle 1 formed on the pull rod 2 is located just below the handle 12 and may be from the fingers of a resting on the handle 12 hand be detected conveniently. By once pulling the handle on the handle, the Support legs are unfolded and can be folded up again by pulling the handle again, whereby a simple one-hand operation of the stand device is given.

Darüber hinaus sind anstatt der aufgezeigten beispielhaften Lösung weitere vorteilhafte Ausführungen möglich.In addition, instead of the exemplary solution shown, further advantageous embodiments possible.

Um Gewicht und Fertigungsaufwand zu reduzieren, kann anstatt des Schwenklagers 10 ein integriertes Gelenk, beispielsweise ähnlich eines Kunststoffilmgelenks mit integriertem federnden Rückstellelement Verwendung finden.To reduce weight and manufacturing costs, instead of the pivot bearing 10 an integrated Joint, for example similar to a Kunststoffilmgelenks with integrated resilient Resetting element find use.

Anstelle der aufgeführten Zugstange 2 mit angebrachter Verzahnung 7 und den Zahnsegmenten 8 ist die Anbringung eines anderen Zugelements, beispielsweise eines hochflexiblen Stahlbandes oder einer Kette, direkt an den Stützbeinen 3a,b denkbar.Instead of the listed drawbar 2 with attached teeth 7 and the tooth segments. 8 is the attachment of another tension element, such as a highly flexible steel strip or a chain, directly to the support legs 3a, b conceivable.

Die bereits erwähnte Rastmechanik 5 kann ebenso im Bereich der oberen Schelle 6a integriert werden. Dies führt zu einer ergonomisch verbesserten Gewichtsverteilung der Standvorrichtung an der Gehhilfe.The already mentioned locking mechanism 5 can also be integrated in the region of the upper clamp 6a. This leads to an ergonomically improved weight distribution of the stand device on the Walker.

Während in Fig. 1 die Standvorrichtung einschließlich der zugehörigen Betätigungselemente als ein auch nachträglich an konventionelle Gehstützen anklemmbarer Bausatz ausgeführt ist, zeigt die Fig. 6 eine abgewandelte Ausführung, bei der der im Prinzip gleiche Betätigungsmechanismus in den innen hohlen Stab 11a,b integriert ist. Alle Bauteile mit gleicher Funktion sind mit den gleichen Bezugszeichen versehen wie in den vorhergehenden Figuren.While in Fig. 1, the stand device including the associated Actuators as one also subsequently to conventional crutches is executed clampable kit, Fig. 6 shows a modified embodiment, in which the actuating mechanism which is in principle the same in the hollow rod 11a, b is integrated. All components with the same function are denoted by the same reference numerals provided as in the previous figures.

Die untere Stabhälfte 11b bildet nun zugleich das Führungsrohr 20, in dem alle weiteren Einzelteile der ansonsten unveränderten Rastmechanik 5 untergebracht sind. Im Vergleich zur Ausführung nach Fig. 1 sind die Schwenklager 10 der Stützbeine 3a,b von der Stabmittelachse radial weiter außen beabstandet angebracht. In der Nähe der Schwenklager 10 befinden sich zwei vertikale Schlitze 25 (Fig. 7) im Führungsrohr 20, die von den mit der Zahnstange 7 formschlüssig in Verbindung stehenden Zahnsegmenten 8 durchgriffen werden. Zur Führung des oberen Endes der im Wesentlichen koaxial im Stab 11 angeordneten Zugstange 2 ist in Höhe des Griffs 12 eine Führungsbuchse 26 angeordnet. Unter dem Griff 12 ist ein mit einer am Griff aufliegenden Hand erreichbares Betätigungselement 1 an der Zugstange 2 befestigtThe lower rod half 11b now also forms the guide tube 20, in which all other Items of otherwise unchanged locking mechanism 5 are housed. in the Compared to the embodiment of FIG. 1, the pivot bearing 10 of the support legs 3a, b of the rod center axis radially further spaced out mounted. Near the Swivel bearing 10 are two vertical slots 25 (Figure 7) in the guide tube 20, that of the positively connected with the rack 7 in connection Tooth segments 8 are penetrated. To guide the upper end of the Essentially coaxially arranged in the rod 11 tie rod 2 is equal to the handle 12th a guide bush 26 is arranged. Under the handle 12 is one with a handle resting hand accessible actuator 1 attached to the pull rod 2

Eine Abwandlung der in Fig. 6 gezeigten Ausführung ist Gegenstand der Fig. 8. Anstelle einer langen, durchgehenden Zugstange kommt hier eine hydraulische Kraftübertragung zum Einsatz. Sie besteht aus einem nahe am Griff 12 angeordneten Hauptzylinder 30, einem im Stab 11b oberhalb der Rastmechanik 5 positionierten Arbeitszylinder 33 und einer die beiden genannten Zylinder druckdicht verbindenden Leitung 35. Diese Leitung 35 kann zumindest abschnittsweise als ein Spiralschlauch ausgeführt sein, wodurch eine problemlose Längenverstellung des Stabes 11 möglich ist. Im Hauptzylinder ist ein mit dem Betätigungselement 1 verbundener Kolben 31 verschiebbar geführt, der durch Anziehen des Betätigungselements 1 in Richtung zum Griff 12 ein Hydraulikfluid in den Arbeitszylinder 33 drückt, wobei ein im Arbeitszylinder geführter Kolben 34 mit einer daran befestigten, verkürzten Zugstange 2 nach oben bis zum Einrasten der Rastmechanik 5 bewegt wird. Bei diesem Vorgang wird die Druckfeder 9 während dem Ausklappen der Stützbeine 3a,b komprimiert. Wird die Rastmechanik 5 durch neuerliches Anziehen des Betätigungselements 1 entriegelt, erfolgt eine Rückstellung durch die Druckfeder 9, d.h. die Stützbeine werden hochgeklappt. Während der Rückstellbewegung wird die Hydraulikflüssigkeit in den Hauptzylinder 30 zurückgeschoben. Durch die Hydraulik ist eine vorteilhafte Bewegungsdämpfung gegeben. Außerdem ist bei einer entsprechenden Bemessung der wirksamen Kolbenflächen eine günstige Kraftübersetzung realisierbar.A modification of the embodiment shown in FIG. 6 is the subject of FIG. 8. Instead of a long, continuous drawbar comes here a hydraulic Power transmission used. It consists of a close to the handle 12 arranged Master cylinder 30, a positioned in the bar 11b above the locking mechanism 5 Working cylinder 33 and a pressure-tightly connecting the two said cylinder Line 35. This line 35 may at least partially as a spiral tube be executed, whereby a smooth length adjustment of the rod 11 possible is. In the master cylinder is connected to the actuator 1 piston 31st slidably guided by the tightening of the actuating element 1 in the direction of Handle 12 presses a hydraulic fluid in the working cylinder 33, wherein a in the Working cylinder guided piston 34 with an attached, shortened pull rod second is moved up to the engagement of the locking mechanism 5. In this process the compression spring 9 is compressed during the unfolding of the support legs 3a, b. Becomes the locking mechanism 5 is unlocked by renewed tightening of the actuating element 1, a reset by the compression spring 9, i. the support legs become folded up. During the return movement, the hydraulic fluid in the Master cylinder 30 pushed back. By the hydraulics is an advantageous Motion damping given. In addition, with a corresponding design of the effective piston surfaces a favorable force translation feasible.

In Fig. 11 ist eine Ausführung einer Längenverstellung zur Anpassung einer ähnlich der Fig. 6 ausgeführten Gehstütze an die Körpergröße eines Benutzers dargestellt. Analog zur zweiteiligen, teleskopartigen Ausführung des aus einer oberen Rohrhälfte 11a und einer unteren Rohrhälfte 11b bestehenden Stabes 11, ist auch die Zugstange 2 zweiteilig gestaltet, d.h. sie besitzt ein oberes, zu 11a verdrehsicher geführtes Rohr 2a und eine in diesem axial verschiebbare Stange 2b. Diese Stange 2b wiederum ist verdrehsicher mit der Rohrhälfte 11b verbunden. Am Stab 11b und dem Rohr 2a befinden sich in Axialrichtung verlaufende Lochreihen mit gleichmäßigem Lochraster, wobei der Stab 1b mit zwei umfänglich um 180 Grad versetzten Lochreihen ausgestattet ist. Am äußeren, dem oberen Stab 11a sind zwei Schwenkbügel 40 mit radial nach innen abstehenden, deckungsgleiche Löcher in den Stabhälften 11 a und 11b durchgreifende Zapfen 41 gelagert, die durch Betätigen der Schwenkbügel 40 mit den Löchern der innen geführten Stabhälfte 11b außer Eingriff gebracht werden können, um dann beide Stabhälften relativ in Axialrichtung auf die neue Länge zu verschieben. Vor dieser Axialverschiebung müssen die beiden Stabhälften 11a und 11b in Umfangsrichtung zueinander verdreht werden, um einen eine schräg zur Umfangsrichtung verlaufende Steuerfläche 43 aufweisenden, radial im Stab 2b verschiebbar geführten Stift 42 gegen die Kraft einer den Stift in Richtung zum Rohr 2a beaufschlagenden Druckfeder 44 radial einwärts soweit zu verschieben, dass der Stift nicht mehr mit einem Loch im Rohr 2a in Eingriff steht. Nach der Längeneinstellung kann der Stift 42 durch eine gegensinnige Drehung der Stabhälften 11 a und 11b in sein nun neu zugeordnetes Loch im Rohr 2a einrasten, während gleichzeitig die Zapfen 41 ebenfalls in ihre neu zugeordneten Löcher in der Stabhälfte 11b durch Freigeben der Schwenkbügel 40 eingreifen. Die beschriebene Längenverstellung hat lediglich beispielhaften Charakter, weil zur Erfüllung der selben Aufgabe auch abgewandelte Ausführungen denkbar sind.In Fig. 11, an embodiment of a length adjustment for adjusting a similar to Fig. 6 executed crutches shown on the body size of a user. Analogous for two-part, telescopic design of an upper half pipe 11 a and a lower tube half 11b existing rod 11, and the pull rod 2 is in two parts designed, i. it has an upper, to 11a against rotation guided pipe 2a and a in this axially displaceable rod 2b. This rod 2b in turn is against rotation connected to the tube half 11b. On the rod 11b and the tube 2a are located in Axially extending rows of holes with a uniform grid of holes, the rod 1b is equipped with two circumferentially offset by 180 degrees rows of holes. At the outer, the upper bar 11a are two pivot bracket 40 with radially inward protruding, congruent holes in the bar halves 11 a and 11 b cross Journal 41 mounted by pressing the swivel bracket 40 with the holes of the inwardly guided rod half 11b can be disengaged, then both Bar halves relative to the axial direction to move to the new length. Before this Axial displacement must the two rod halves 11a and 11b in the circumferential direction be rotated to one another at an angle to the circumferential direction Control surface 43 having radially displaceable in the bar 2b guided pin 42 against the force of the pin acting in the direction of the tube 2a compression spring 44th Move radially inward so far that the pin stops with a hole in the pipe 2a is engaged. After the length adjustment, the pin 42 by a opposite rotation of the rod halves 11 a and 11 b in its now newly assigned hole Engage in the tube 2a, while the pins 41 also in their new associated holes in the rod half 11b by releasing the swivel bracket 40th intervention. The length adjustment described has only exemplary character, because to fulfill the same task and modified versions are conceivable.

Claims (11)

  1. Crutch of adjustable length with a stand device and with a rod (11a, 11b) which has an axillary support or forearm support (13), a handle (12) and a foot (4) and at whose area near the foot there are support legs (3a, 3b) which can be folded from a ready-for-use position to a stand position and vice versa about a pivot bearing (10) secured in a fixed position on the rod, and which support legs (3a, 3b) are connected, via a force transmission means (2) with catch mechanism (5), to an actuating element (1) which is assigned to the handle and can be gripped by the fingers of a hand resting on the handle, characterized in that the force transmission means (2) is arranged in the rod (11a, 11b) and, upon adjustment of its length, it adapts automatically in the longitudinal direction.
  2. Device according to Claim 1, characterized in that the force transmission means is designed as a connecting rod (2), in particular as a pull rod.
  3. Device according to Claim 2, characterized in that the connecting rod (2), secured against turning, is displaceably guided approximately parallel to the rod (11a, 11b).
  4. Device according to at least one of Claims 1 to 3, characterized in that the connecting rod has, at its lower end, a toothed rack (7) into which tooth segments (8), arranged secure against turning on the support legs (3a, 3b), engage with a form fit.
  5. Device according to at least one of Claims 1 to 4, characterized in that the catch mechanism (5) is designed in such a way that, by pulling the actuating element (1) in the direction towards the handle (12), the support legs can be moved from the ready-for-use position to a stand position, and, by once more pulling the actuating element in the direction towards the handle, they can be moved from the stand position back to the ready-for-use position.
  6. Device according to at least one of the preceding Claims 1 to 5, characterized in that the support legs (3a, 3b) are of shell-shaped design and, in the ready-for-use position, bear snugly on the rod (11a, 11b).
  7. Device according to at least one of Claims 1 to 6, characterized in that the catch mechanism (5) is arranged in the rod (11).
  8. Device according to one of Claims 1 to 7, characterized in that the force transmission from the actuating element (1) to the support legs (3a, 3b) is effected at least in part by hydraulic means.
  9. Device according to Claim 8, characterized in that the force transmission means has a flexurally elastic spiral tube (35).
  10. Device according to one of Claims 2 to 7, characterized in that the connecting rod (2a, 2b) is designed in two parts and can be adjusted in length in the axial direction.
  11. Device according to Claim 10, characterized in that both connecting rod parts (2a, 2b) can be coupled in the axial direction via a locking mechanism (42, 44), said locking mechanism being able to be unlocked and locked automatically by the connecting rod parts being turned in opposite directions.
EP01105542A 2000-03-09 2001-03-06 Stand device for crutch Expired - Lifetime EP1136054B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20004158U 2000-03-09
DE20004158U DE20004158U1 (en) 1999-03-09 2000-03-09 Stand device for a crutch

Publications (2)

Publication Number Publication Date
EP1136054A1 EP1136054A1 (en) 2001-09-26
EP1136054B1 true EP1136054B1 (en) 2005-05-11

Family

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Application Number Title Priority Date Filing Date
EP01105542A Expired - Lifetime EP1136054B1 (en) 2000-03-09 2001-03-06 Stand device for crutch

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EP (1) EP1136054B1 (en)
AT (1) ATE295141T1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2834185B1 (en) * 2001-12-31 2004-02-27 Anatole Temkine SUPPORT STICK FOR A PERSON, SUCH AS A CANE OR A STAND, AND METHODS FOR FITTING A DETERMINED PERSON WITH SUCH A STICK
US6708831B1 (en) * 2002-04-26 2004-03-23 Tilio J. Balassi Vertical support for crutches
FR2856589B1 (en) * 2003-06-25 2006-05-12 Jean Pierre Muscarnera ANGLED ROD WITH STABILIZATION DEVICE AND REMOVABLE STABILIZATION DEVICE ADAPTABLE ON CURRENT ENGLISH CANES
DE10394340T5 (en) * 2003-12-04 2006-10-26 Sven Olerud walking stick
DE202004008411U1 (en) 2004-05-21 2005-09-29 Schlosser, Marga Stand device for a crutch and crutches with a stand device
EP2912644A4 (en) 2012-10-23 2016-05-25 Univ New York Somatosensory feedback wearable object
FR3073735A1 (en) * 2017-11-20 2019-05-24 Dimitri Caillat PAIR OF ENGLISH CANNES
DE102022110735A1 (en) * 2022-05-02 2023-11-02 Steets GmbH Support module

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8507074U1 (en) * 1985-03-12 1985-04-25 Rief, Roland, Dipl.-Ing., 6704 Mutterstadt Device for people with Parkinson's disease
CH688175A5 (en) 1994-06-10 1997-06-13 Hostettler Eliane Crutch to aid walking with unfolding supports
NL9401235A (en) * 1994-07-28 1996-03-01 Joannes Adrianus Michael Cleme Walking stick or crutch with support device for positioning it in an upright standing position
NL1004305C2 (en) * 1996-10-17 1998-08-26 Joannes Adrianus Michael Cleme Walking stick.
FR2758979B1 (en) * 1997-02-05 1999-05-28 Pougnaud Jean "ENGLISH" TYPE ROD OR THE LIKE
ATE255393T1 (en) * 1998-04-16 2003-12-15 Marga Schlosser STAND DEVICE FOR A WALKING SUPPORT

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ATE295141T1 (en) 2005-05-15
EP1136054A1 (en) 2001-09-26

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