EP0552481A1 - Telescopic vacuum cleaner suction hose - Google Patents

Telescopic vacuum cleaner suction hose Download PDF

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Publication number
EP0552481A1
EP0552481A1 EP92121753A EP92121753A EP0552481A1 EP 0552481 A1 EP0552481 A1 EP 0552481A1 EP 92121753 A EP92121753 A EP 92121753A EP 92121753 A EP92121753 A EP 92121753A EP 0552481 A1 EP0552481 A1 EP 0552481A1
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EP
European Patent Office
Prior art keywords
vacuum cleaner
cleaner suction
locking
telescopic vacuum
suction pipe
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.)
Granted
Application number
EP92121753A
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German (de)
French (fr)
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EP0552481B1 (en
Inventor
August Cordes
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CARL FROH GMBH & CO
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Carl Froh & Co GmbH
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Publication date
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Publication of EP0552481A1 publication Critical patent/EP0552481A1/en
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Publication of EP0552481B1 publication Critical patent/EP0552481B1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/242—Hose or pipe couplings
    • A47L9/244—Hose or pipe couplings for telescopic or extensible hoses or pipes

Definitions

  • the invention relates to a telescopic vacuum cleaner suction pipe according to the preamble of claim 1.
  • Such a vacuum cleaner suction tube is already known from DE-PS 37 18 578.
  • the locking of the inner and outer tube can be released by finger pressure on a spring-loaded slide that is held longitudinally displaceably on the outer tube, in which the slide is moved from the unloaded rest position - which also corresponds to the locking position - in a very specific axial direction by finger pressure. After the slide is relieved of finger pressure, it slides back into its original locking position by spring force.
  • Such telescopic vacuum cleaner suction tubes are used by very different users - they can have a small or large body length, be young or old or right-handed or left-handed, etc. - such a locking or actuating device must be as simple and easy to use as possible for everyone be.
  • the object of the invention is therefore to provide a telescopic vacuum cleaner suction pipe, which should be even more user-friendly, and simple and inexpensive to manufacture.
  • the vacuum cleaner suction tube according to the invention now makes it possible to achieve an unlocking position by moving the handle by means of finger pressure in both longitudinal directions of the tube, so that the telescopic tubes can be pulled apart.
  • the vacuum cleaner suction pipe according to the invention has the locking position in the rest position of the spring, so that after releasing the handle, the same moves from both unlocking positions immediately - and without the user doing anything - into the locking position.
  • the unlocking of the tubes - is achieved by moving the handle in either of the two longitudinal directions of the tubes.
  • the tubes are automatically locked together when the handle is released, so that this type of locking and actuating device can rightly be described as completely "foolproof".
  • the unlocking areas are designed as cavities arranged on both sides next to the locking surface in the actuating projection and matched to the size of the rolling element.
  • This type of unlocking areas has the advantage that the cavities can be produced quite simply in the area of the lower surface of the actuating approach, and on the other hand an arrangement of unlocking areas can be created on both sides of the locking position which represents the rest position, without, based on the advantageous prior art (DE-PS 37 18 578), a fundamentally new structure of the actuating and locking device is necessary.
  • the spring force acting upon the slide in both directions when the slide moves from the rest position is generated by two helical compression springs arranged on both sides of the actuating attachment and connected to the actuating attachment and to the guide body. This can ensure that the slide including the handle automatically moves back into the rest position - and thus into the locking position.
  • a somewhat simpler but reliable embodiment is characterized in that the actuating attachment is connected to an annular rod spring which is at least partially fixed on the guide body and whose rest position corresponds to the locking position of the actuating attachment. Due to this construction, it is no longer necessary to use two helical compression springs, but a rod spring that is only fixed on the guide body and connected to the actuating shoulder is able to counteract the to apply a spring force in both potentially possible directions of movement, which in any case brings about the return of the slide (handle) into the rest or locking position.
  • a telescopic vacuum cleaner suction tube is generally designated by the reference number 10.
  • the suction pipe 10 has an inner pipe 11 and an outer pipe 12.
  • the outer tube 12 is provided at its illustrated end with a sleeve-like widening 13.
  • a plastic guide body 15 which is essentially circular in cross section.
  • the handle 19 is positively and non-positively connected to the actuating projection 17, which extends through a recess 18 through the outer tube 12.
  • the actuating lug 17 which is arranged on the peripheral surface 20 of the guide body 15 so as to be longitudinally displaceable (in the direction of the double arrow), is loaded on both sides with a helical compression spring 22 each on the guiding body 15 in a spring receptacle 31 and on a projection 30 on the opposite end face 21 of the actuating lug 17. Since both helical compression springs 22 exert an identical spring force, the actuating projection 17 is held in the center in a movement path defined by guide strips (not shown) on the peripheral surface 20 of the guide body 15.
  • a locking surface 23 is arranged in the center on the side of the actuating projection 17 facing the outer tube 12. This locking surface 23 can close an opening 24 in the guide body 15, a roller body 26 being held in the opening 24 and in a locking recess 25 arranged underneath it of the inner tube 11. On both sides of the locking surface 23 of the actuating projection 17 there is a cavity 27, which has a trapezoidal shape and, in the case of unlocking, offers space for the rolling element 26.
  • annular rod spring 32 held at both ends in the guide body 15, instead of two helical compression springs 22, which forcibly returns the actuating projection 17 to the locking position when no more force is applied to the handle 19.
  • the spring resting position of the spring rod should then match the locking position.
  • the annular bar spring 32 is at least partially held in a groove 33 on the circumferential surface 20 of the half of the guide body 15, not shown, up to approximately the shape-dividing plane (guide bar 34), with a section 35 of the bar spring 32 simultaneously engaging in a groove 36 of the actuating projection 17 .
  • the bar spring 32 Since the bar spring 32 is unguided above the mold division plane between the groove 33 and the groove 36, the bar spring 32 can be deflected in both longitudinal directions of the guide body 15. This always happens when the actuating projection 17 guided between the edge strips 37 on the peripheral surface 20 of the guide body 15 is moved in one of the two possible directions by means of the handle 19.

Abstract

The inner tube (11) has an axially extending catch strip. Guided between the inner tube and the outer tube (12) is a slide (16) which can be moved out of a locking position by finger pressure. The slide is capable of holding down a cylinder body (26) held in the catch strip in the locking position by means of a locking surface (23) which can be moved along the catch strip, and of releasing said cylinder body in the unlocking position. In both axial directions of movement, the slide has at least one unlocking region (27) in each case and can be moved counter to a spring restoring force in each case into its positions which release the cylinder body. <IMAGE>

Description

Die Erfindung betrifft ein teleskopierbares Staubsauger-Saugrohr nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a telescopic vacuum cleaner suction pipe according to the preamble of claim 1.

Ein derartiges Staubsauger-Saugrohr ist bereits aus der DE-PS 37 18 578 bekannt. Auf vorteilhafte Weise ist es bei diesem Stand der Technik möglich, ein Innen- und ein Außenrohr über eine Befestigungs- bzw. Betätigungsvorrichtung axial lösbar miteinander zu arretieren. Die Arretierung von Innen- und Außenrohr kann mittels Fingerdruck auf einen am Außenrohr längsverschieblich gehaltenen federbelasteten Schieber aufgehoben werden, in dem der Schieber aus der unbelasteten Ruhelage - die zugleich der Verriegelungsstellung entspricht - durch Fingerdruck in eine ganz bestimmte axiale Richtung verschoben wird. Nach der Entlastung des Schiebers vom Fingerdruck gleitet dieser durch Federkraft wieder in seine ursprüngliche Verriegelungsstellung zurück.Such a vacuum cleaner suction tube is already known from DE-PS 37 18 578. In this prior art, it is advantageously possible to lock an inner and an outer tube axially detachably with one another via a fastening or actuating device. The locking of the inner and outer tube can be released by finger pressure on a spring-loaded slide that is held longitudinally displaceably on the outer tube, in which the slide is moved from the unloaded rest position - which also corresponds to the locking position - in a very specific axial direction by finger pressure. After the slide is relieved of finger pressure, it slides back into its original locking position by spring force.

Da derartige teleskopierbare Staubsauger-Saugrohre von sehr unterschiedlichen Benutzern verwendet werden - sie können eine kleine oder große Körperlänge haben, jung oder alt sein bzw. Rechts- oder Linkshänder etc. - muß eine derartige Arretierungs- bzw. Betätigungsvorrichtung möglichst sehr einfach und für jedermann bedienbar sein.Since such telescopic vacuum cleaner suction tubes are used by very different users - they can have a small or large body length, be young or old or right-handed or left-handed, etc. - such a locking or actuating device must be as simple and easy to use as possible for everyone be.

Aufgabe der Erfindung ist es daher, ein teleskopierbares Staubsauger-Saugrohr zu schaffen, welches noch bedienungsfreundlicher sein soll, sowie einfach und kostengünstig herzustellen.The object of the invention is therefore to provide a telescopic vacuum cleaner suction pipe, which should be even more user-friendly, and simple and inexpensive to manufacture.

Die Erfindung löst die oben genannte Aufgabe gemäß den Merkmalen der Kennzeichenteils des Patentanspruchs 1.The invention achieves the above-mentioned object according to the features of the characterizing part of patent claim 1.

Durch das erfindungsgemäße Staubsauger-Saugrohr wird es nunmehr möglich, durch Bewegung der Handhabe mittels Fingerdruck in beiden Rohrlängsrichtungen jeweils eine Entriegelungsstellung zu erreichen, so daß die Teleskoprohre auseinandergezogen werden können. Zugleich weist das erfindungsgemäße Staubsauger-Saugrohr die Verriegelungsstellung in der Ruhelage der Feder auf, so daß nach dem Loslassen der Handhabe dieselbe sich aus beiden Entriegelungsstellungen sofort - und ohne Zutun des Benutzers - in die Arretierstellung bewegt. Nunmehr wird es auch technisch ungeschickten bzw. unbegabten Benutzern möglich sein, quasi auf Anhieb die Entriegelungsstellung zu erreichen, da durch die Bewegung der Handhabe in irgendeine der beiden möglichen Längsrichtungen der Rohre der gewünschte Erfolg - also die Entriegelung der Rohre - erreicht wird. Zugleich sind beim Loslassen der Handhabe die Rohre wieder automatisch miteinander verriegelt, so daß man diese Art der Arretierungs- und Betätigungsvorrichtung zu Recht als vollkommen "narrensicher" bezeichnen kann.The vacuum cleaner suction tube according to the invention now makes it possible to achieve an unlocking position by moving the handle by means of finger pressure in both longitudinal directions of the tube, so that the telescopic tubes can be pulled apart. At the same time, the vacuum cleaner suction pipe according to the invention has the locking position in the rest position of the spring, so that after releasing the handle, the same moves from both unlocking positions immediately - and without the user doing anything - into the locking position. Now it will also be possible for technically unskilled or unskilled users to reach the unlocking position almost instantly, since the desired success - that is, the unlocking of the tubes - is achieved by moving the handle in either of the two longitudinal directions of the tubes. At the same time the tubes are automatically locked together when the handle is released, so that this type of locking and actuating device can rightly be described as completely "foolproof".

Bei einer vorteilhaften Ausführungsform sind die Entriegelungsbereiche als beidseitig neben der Verriegelungsfläche im Betätigungsansatz angeordnete, auf die Größe des Wälzkörpers abgestimmte Hohlräume ausgebildet. Diese Art der Entriegelungsbereiche hat den Vorteil, daß sich die Hohlräume recht einfach im Bereich der Unterfläche des Betätigungsansatzes herstellen lassen, und zum anderen kann eine Anordnung von Entriegelungsbereichen beidseitig der die Ruhelage darstellenden Verriegelungsstellung geschaffen werden, ohne daß, bezogen auf den vorteilhaften Stand der Technik (DE-PS 37 18 578), ein grundsätzlich neuer Aufbau der Betätigungs- und Verriegelungsvorrichtung notwendig wird.In an advantageous embodiment, the unlocking areas are designed as cavities arranged on both sides next to the locking surface in the actuating projection and matched to the size of the rolling element. This type of unlocking areas has the advantage that the cavities can be produced quite simply in the area of the lower surface of the actuating approach, and on the other hand an arrangement of unlocking areas can be created on both sides of the locking position which represents the rest position, without, based on the advantageous prior art (DE-PS 37 18 578), a fundamentally new structure of the actuating and locking device is necessary.

Bei einer weiteren besonders vorteilhaften Ausführungsform wird die bei der Bewegung des Schiebers aus der Ruhelage in beiden Richtungen jeweils auf den Schieber einwirkende Federkraft durch zwei beidseitig des Betätigungsansatzes angeordnete und mit dem Betätigungsansatz sowie mit dem Führungskörper verbundene Schraubendruckfedern erzeugt. Damit kann sichergestellt werden, daß sich der Schieber einschließlich der Handhabe wieder in die Ruhelage - und damit in die Verriegelungsstellung - automatisch zurückbewegt.In a further particularly advantageous embodiment, the spring force acting upon the slide in both directions when the slide moves from the rest position is generated by two helical compression springs arranged on both sides of the actuating attachment and connected to the actuating attachment and to the guide body. This can ensure that the slide including the handle automatically moves back into the rest position - and thus into the locking position.

Eine etwas einfachere und jedoch betriebssichere Ausführungsform ist gekennzeichnet dadurch, daß der Betätigungsansatz mit einer am Führungskörper zumindestens teilweise festgelegten ringförmigen Stabfeder verbunden ist, dessen Ruhelage mit der Verriegelungsstellung des Betätigungsansatzes übereinstimmt. Durch diese Konstruktion ist es nicht mehr notwendig, zwei Schraubendruckfedern zu verwenden, sondern eine nur am Führungskörper festgelegte und mit dem Betätigungsansatz verbundene Stabfeder ist in der Lage, entgegen den beiden potentiell möglichen Bewegungsrichtungen eine Federkraft aufzubringen, die in jedem Fall die Rückführung des Schiebers (Handhabe) in die Ruhe- bzw. Verriegelungsstellung herbeiführt.A somewhat simpler but reliable embodiment is characterized in that the actuating attachment is connected to an annular rod spring which is at least partially fixed on the guide body and whose rest position corresponds to the locking position of the actuating attachment. Due to this construction, it is no longer necessary to use two helical compression springs, but a rod spring that is only fixed on the guide body and connected to the actuating shoulder is able to counteract the to apply a spring force in both potentially possible directions of movement, which in any case brings about the return of the slide (handle) into the rest or locking position.

Weitere Vorteile und erfindungswesentliche Merkmale ergeben sich aus den Unteransprüchen sowie aus dem in den Zeichnungen dargestellten Ausführungsbeispielen der Erfindung. Es zeigen:

  • Fig.1 einen Schnitt durch ein teleskopierbares Staubsauger-Saugrohr mit Betätigungs- und Arretierungsvorrichtung und
  • Fig. 2 eine Draufsicht auf den Führungskörper einschließlich Betätigungsansatz und Stabfeder.
Further advantages and features essential to the invention result from the subclaims and from the exemplary embodiments of the invention illustrated in the drawings. Show it:
  • 1 shows a section through a telescopic vacuum cleaner suction pipe with actuating and locking device and
  • Fig. 2 is a plan view of the guide body including the actuating approach and bar spring.

In der Zeichnung ist ein teleskopierbares Staubsauger-Saugrohr insgesamt mit der Bezugsziffer 10 bezeichnet.In the drawing, a telescopic vacuum cleaner suction tube is generally designated by the reference number 10.

Das Saugrohr 10 weist ein Innenrohr 11 und ein Außenrohr 12 auf. Das Außenrohr 12 ist an seinem dargestellten Ende mit einer muffenartigen Aufweitung 13 versehen. In dem zwischen Innenrohr-Außenmantelfläche 28 und Außenrohr-Innenmantelfläche 29 befindlichen Freiraum 14 ist ein im Querschnitt im wesentlichen kreisförmiger Führungskörper 15 aus Kunststoff angeordnet.The suction pipe 10 has an inner pipe 11 and an outer pipe 12. The outer tube 12 is provided at its illustrated end with a sleeve-like widening 13. In the free space 14 located between the inner tube outer jacket surface 28 and the outer tube inner jacket surface 29 there is a plastic guide body 15 which is essentially circular in cross section.

Im Führungskörper 15 ist ein entlang der Rohrlängsachse x bewegbarer Schieber 16 gehalten, der aus einem Betätigungsansatz 17 und einer Handhabe 19 besteht. Die Handhabe 19 ist form- und kraftschlüssig mit dem Betätigungsansatz 17 verbunden, der durch eine Aussparung 18 das Außenrohr 12 durchgreift.A slide 16, which is movable along the longitudinal tube axis x, is held in the guide body 15 there is an actuating projection 17 and a handle 19. The handle 19 is positively and non-positively connected to the actuating projection 17, which extends through a recess 18 through the outer tube 12.

Der an der Umfangsfläche 20 des Führungskörpers 15 längsverschieblich (in Richtung des Doppelpfeiles) angeordnete Betätigungsansatz 17 ist beidseitig mit einer jeweils am Führungskörper 15 in einer Federaufnahme 31 und einer auf einem Vorsprung 30 an der gegenüberliegenden Stirnfläche 21 des Betätigungsansatzes 17 angeordneten Schraubendruckfeder 22 belastet. Da beide Schraubendruckfedern 22 eine identische Federkraft aufbringen, ist der Betätigungsansatz 17 mittig in einer durch nicht dargestellte Führungsleisten festgelegten Bewegungsbahn an der Umfangsfläche 20 des Führungskörpers 15 gehalten.The actuating lug 17, which is arranged on the peripheral surface 20 of the guide body 15 so as to be longitudinally displaceable (in the direction of the double arrow), is loaded on both sides with a helical compression spring 22 each on the guiding body 15 in a spring receptacle 31 and on a projection 30 on the opposite end face 21 of the actuating lug 17. Since both helical compression springs 22 exert an identical spring force, the actuating projection 17 is held in the center in a movement path defined by guide strips (not shown) on the peripheral surface 20 of the guide body 15.

An der zum Außenrohr 12 weisenden Seite des Betätigungsansatzes 17 ist mittig eine Verriegelungsfläche 23 angeordnet. Diese Verriegelungsfläche 23 kann eine Öffnung 24 im Führungskörper 15 verschließen, wobei in der Öffnung 24 sowie in einer darunter angeordneten Rastausnehmung 25 des Innenrohrs 11 ein Wälzkörper 26 gehalten ist. Beidseitig der Verriegelungsfläche 23 des Betätigungsansatzes 17 ist jeweils ein Hohlraum 27 vorhanden, der eine trapezförmige Gestalt aufweist und im Falle der Entriegelung dem Wälzkörper 26 Platz bietet.A locking surface 23 is arranged in the center on the side of the actuating projection 17 facing the outer tube 12. This locking surface 23 can close an opening 24 in the guide body 15, a roller body 26 being held in the opening 24 and in a locking recess 25 arranged underneath it of the inner tube 11. On both sides of the locking surface 23 of the actuating projection 17 there is a cavity 27, which has a trapezoidal shape and, in the case of unlocking, offers space for the rolling element 26.

In der Zeichnung ist die Verriegelungsstellung dargestellt, da im vorliegenden Fall die Verriegelungsfläche 23 des Betätigungsansatzes 17 ein Ausweichen des Wälzkörpers 26 nach oben verhindert. Dies bedeutet, daß bei der gezeigten Stellung des Schiebers 19 in Bezug zum Wälzkörper 26 auch eine große Innen- und Außenrohr 11, 12 auseinanderziehende Kraft nicht in der Lage ist, eine Relativbewegung zwischen Innen- und Außenrohr herbeizuführen.In the drawing, the locking position is shown, since in the present case the locking surface 23 of the actuating projection 17 prevents the Rolling body 26 prevented upwards. This means that in the shown position of the slide 19 in relation to the rolling element 26, a large inner and outer tube 11, 12 pulling force is not able to bring about a relative movement between the inner and outer tube.

Falls nun der Schieber 19 und damit natürlich auch der Betätigungsansatz 17 in eine der Richtungen des Doppelpfeiles verschoben wird, so daß sich ein Hohlraum 27 oberhalb der Öffnung 24 im Führungskörper 15 und damit auch oberhalb des Wälzkörpers 26 befindet, würde dieselbe Innen- und Außenrohr 11, 12 auseinanderziehende Kraft bewirken, daß der Wälzkörper 26 aus der Rastausnehmung 25 hinaus in einen Hohlraum 17 gedrückt wird, so daß die Arretierung zwischen Innen- und Außenrohr 11, 12 aufgehoben wird. Bei Wegnahme des Fingerdrucks gleitet der Schieber 19 aufgrund Federkraft wieder in die Ruhelage zurück und wenn gleichzeitig eine Differenzkraft an Innen- und Außenrohr 11, 12 angreift, wird der Wälzkörper 26 in die nächstgelegene Rastausnehmung 25 und somit in eine neue Verriegelungsstellung bewegt.If the slide 19 and thus of course also the actuation projection 17 is shifted in one of the directions of the double arrow, so that there is a cavity 27 above the opening 24 in the guide body 15 and thus also above the roller body 26, the same inner and outer tube 11th , 12 pulling force cause the rolling element 26 to be pressed out of the locking recess 25 into a cavity 17, so that the locking between the inner and outer tubes 11, 12 is released. When the finger pressure is removed, the slide 19 slides back into the rest position due to spring force, and if a differential force acts on the inner and outer tubes 11, 12 at the same time, the rolling element 26 is moved into the closest latching recess 25 and thus into a new locking position.

Grundsätzlich ist es auch möglich, statt zwei Schraubendruckfedern 22 eine beidendig im Führungskörper 15 gehaltene, ggf. ringförmige Stabfeder 32, zu verwenden, die den Betätigungsansatz 17 zwangsweise wieder in die Verriegelungstellung zurückführt, wenn keine Kraft an der Handhabe 19 mehr angreift. Die Federruhelage des Federstabes müßte dann mit der Verriegelungsstellung übereinstimmen. Bei dieser in Fig. 2 gezeigten Ausführungsform ist die ringförmige Stabfeder 32 in einer Nut 33 an der Umfangsfläche 20 der nicht dargestellten Hälfte des Führungskörpers 15 bis etwa zur Formteilungsebene (Führungsleiste 34) zumindest teilweise gehalten, wobei ein Abschnitt 35 der Stabfeder 32 zugleich in eine Nut 36 des Betätigungsansatzes 17 eingreift. Da die Stabfeder 32 oberhalb der Formteilungsebene zwischen der Nut 33 und der Nut 36 ungeführt ist, kann die Stabfeder 32 in beiden Längsrichtungen des Führungskörpers 15 ausgelenkt werden. Dies geschieht immer dann, wenn der zwischen Randleisten 37 an der Umfangsfläche 20 des Führungskörpers 15 geführten Betätigungsansatz 17 mittels der Handhabe 19 in eine der beiden möglichen Richtungen bewegt wird.In principle, it is also possible to use an optionally annular rod spring 32, held at both ends in the guide body 15, instead of two helical compression springs 22, which forcibly returns the actuating projection 17 to the locking position when no more force is applied to the handle 19. The spring resting position of the spring rod should then match the locking position. In this in Fig. 2nd In the embodiment shown, the annular bar spring 32 is at least partially held in a groove 33 on the circumferential surface 20 of the half of the guide body 15, not shown, up to approximately the shape-dividing plane (guide bar 34), with a section 35 of the bar spring 32 simultaneously engaging in a groove 36 of the actuating projection 17 . Since the bar spring 32 is unguided above the mold division plane between the groove 33 and the groove 36, the bar spring 32 can be deflected in both longitudinal directions of the guide body 15. This always happens when the actuating projection 17 guided between the edge strips 37 on the peripheral surface 20 of the guide body 15 is moved in one of the two possible directions by means of the handle 19.

Claims (8)

Teleskopierbares Staubsauger-Saugrohr mit einem Außenrohr und einem Innenrohr, welches mit einer sich axial erstreckenden Rastleiste versehen ist, wobei zwischen beiden Rohren ein durch Fingerdruck aus einer Verriegelungsstellung entgegen der Kraft einer Feder beweglicher Schieber geführt ist, welcher in der die Rohre zueinander arretierenden Stellung mittels einer Verriegelungsfläche einen in einer Rastausnehmung der Rastleiste gehaltenen Wälzkörper niederhält und in mindestens einer Entriegelungsstellung den Wälzkörper freigibt, dadurch gekennzeichnet, daß der Schieber (16) in beiden axialen Bewegungsrichtungen mindestens je einen Entriegelungsbereich (24) aufweist und in seine den den Wälzkörper (26) freigebende Stellungen jeweils entgegen einer Federrückstellkraft bewegbar ist.Telescopic vacuum cleaner suction tube with an outer tube and an inner tube, which is provided with an axially extending locking bar, between which a finger slide from a locking position against the force of a spring movable slide is guided, which in the locking position of the tubes to each other by means of a locking surface holds down a rolling element held in a locking recess of the locking strip and releases the rolling element in at least one unlocking position, characterized in that the slide (16) has at least one unlocking area (24) in each of the two axial directions of movement and in its the the rolling element (26) releasing positions is each movable against a spring restoring force. Teleskopierbares Staubsauger-Saugrohr nach Anspruch 1 dadurch gekennzeichnet, daß der Schieber (16) aus einer Handhabe (19) und einem Betätigungsansatz (17) besteht, die miteinander verbunden sind und daß die Entriegelungsbereiche (24) als beidseitig neben der Verriegelungsfläche (23) im Betätigungsansatz (17) angeordnete, auf die Größe des Wälzkörpers (26) abgestimmte Hohlräume ausgebildet sind.Telescopic vacuum cleaner suction pipe according to claim 1, characterized in that the slide (16) consists of a handle (19) and an actuating projection (17) which are connected to one another and that the unlocking areas (24) as on both sides next to the locking surface (23) in Actuating approach (17) arranged, adapted to the size of the rolling element (26) cavities are formed. Teleskopierbares Staubsauger-Saugrohr nach Anspruch 1 und 2 gekennzeichnet durch im Querschnitt trapezförmige Hohlräume (24).Telescopic vacuum cleaner suction pipe according to claim 1 and 2 characterized by cavities (24) which are trapezoidal in cross section. Teleskopierbares Staubsauger-Saugrohr nach Anspruch 1 und 2, gekennzeichnet durch im Querschnitt halbkreisförmige Hohlräume (24).Telescopic vacuum cleaner suction pipe according to claim 1 and 2, characterized by cavities (24) which are semicircular in cross section. Teleskopierbares Staubsauger-Saugrohr nach Anspruch 1 dadurch gekennzeichnet, daß zwischen den Stirnflächen (21) des Betätigungsansatzes (17) und dem Führungskörper (15) jeweils eine Schraubendruckfeder (22) angeordnet ist und daß der Betätigungsansatz (17) in beiden axialen Bewegungsrichtungen nur entgegen der Kraft einer Schraubendruckfeder (22) bewegbar ist.Telescopic vacuum cleaner suction pipe according to claim 1, characterized in that a helical compression spring (22) is arranged between the end faces (21) of the actuating projection (17) and the guide body (15), and that the actuating projection (17) is only opposite in both axial directions of movement Can be moved by means of a helical compression spring (22). Teleskopierbares Staubsauger-Saugrohr nach Anspruch 7 dadurch gekennzeichnet, daß der Betätigungsansatz (17) mit einer am Führungskörper (15) zumindest teilweise festgelegten ringförmigen Stabfeder (32) verbunden ist, dessen Ruhelage mit der Verriegelungsstellung des Betätigungsansatzes (17) übereinstimmt.Telescopic vacuum cleaner suction pipe according to claim 7, characterized in that the actuating projection (17) is connected to an annular rod spring (32) at least partially fixed on the guide body (15), the rest position of which corresponds to the locking position of the actuating projection (17). Teleskopierbares Staubsauger-Saugrohr nach Anspruch 1 und 6, dadurch gekennzeichnet, daß die Stabfeder (32) in einer Nut (36) des Betätigungsansatzes (17) sowie in einer Nut (33) an der Umfangsfläche (20) des Führungskörpers (15) geführt wird.Telescopic vacuum cleaner suction pipe according to claims 1 and 6, characterized in that the bar spring (32) is guided in a groove (36) of the actuating projection (17) and in a groove (33) on the peripheral surface (20) of the guide body (15) . Teleskopierbares Staubsauger-Saugrohr nach Anspruch 7, dadurch gekennzeichnet, daß die Umfangsnut (33) auf der vom Betätigungsansatz (17) wegweisenden Seite des Führungskörpers (15) in etwa bis zur Formteilungsebene verläuft.Telescopic vacuum cleaner suction pipe according to claim 7, characterized in that the circumferential groove (33) on the side of the guide body (15) which points away from the actuating projection (17) extends approximately to the plane of the parting.
EP92121753A 1992-01-11 1992-12-22 Telescopic vacuum cleaner suction hose Expired - Lifetime EP0552481B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4200527A DE4200527C2 (en) 1992-01-11 1992-01-11 Telescopic vacuum cleaner suction pipe
DE4200527 1992-01-11

Publications (2)

Publication Number Publication Date
EP0552481A1 true EP0552481A1 (en) 1993-07-28
EP0552481B1 EP0552481B1 (en) 1996-05-15

Family

ID=6449351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92121753A Expired - Lifetime EP0552481B1 (en) 1992-01-11 1992-12-22 Telescopic vacuum cleaner suction hose

Country Status (6)

Country Link
EP (1) EP0552481B1 (en)
AT (1) ATE137936T1 (en)
DE (2) DE4200527C2 (en)
DK (1) DK0552481T3 (en)
ES (1) ES2088079T3 (en)
GR (1) GR3020088T3 (en)

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WO1997012168A1 (en) * 1995-09-28 1997-04-03 Philips Electronics N.V. Tube coupling with axially movable unlocking slide
EP0893089A1 (en) * 1997-07-25 1999-01-27 Apparatur Verfahren S.A. Telescopic suction tube for vacuum cleaner, locking device for this tube and application of this device in a suction tube
WO1999035409A1 (en) * 1998-01-07 1999-07-15 Tubalco Manufacturing Pty. Ltd. Locking arrangement for telescopically moving tubes
WO2000000075A1 (en) * 1998-06-30 2000-01-06 Daewoo Electronics Co., Ltd. Telescopable wand assembly of a vacuum cleaner
WO2000067631A1 (en) * 1999-05-10 2000-11-16 Kwang Dong Precision Co., Ltd. A length adjusting device for suction pipe of vacuum cleaner
EP1092383A1 (en) * 1999-10-11 2001-04-18 OMEC S.p.A. Telescopic extension for an electric household appliance
EP1106133A1 (en) * 1999-12-07 2001-06-13 Wuxian Yuexi Power Cable and Electrical Factory Telescopic vacuum cleaner suction pipe
CN1095639C (en) * 1995-08-10 2002-12-11 三洋电机株式会社 Extension hose for electric suction cleaner
US6494492B1 (en) 1999-02-09 2002-12-17 Jong Mok Ha Suction pipe of a vacuum cleaner
US6513191B1 (en) * 1999-12-11 2003-02-04 Kwang Dong Precision Co., Ltd. Device for adjusting suction pipe length of a vacuum cleaner
CN1105544C (en) * 1997-02-14 2003-04-16 弗罗豪斯技术两合公司 Telescopic sucking pipe of dust cleaner
CN1303933C (en) * 2004-12-15 2007-03-14 徐为尔 Sucker of vacuum cleaner
WO2007112839A1 (en) * 2006-03-31 2007-10-11 Omec S.P.A. Telescopic extension for an electric household appliance
US20130081226A1 (en) * 2011-09-29 2013-04-04 Dyson Technology Limited Upright vacuum cleaner
WO2019029603A1 (en) * 2017-08-09 2019-02-14 天佑电器（苏州）有限公司 Telescopic tube device and vacuum cleaner having same
US11399681B2 (en) 2017-08-09 2022-08-02 Skybest Electric Appliance (Suzhou) Co., Ltd. Telescopic tube device and vacuum cleaner having same

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DE19615814C2 (en) * 1995-04-27 1998-01-29 Zelmer Telescopic vacuum cleaner pipe
DE19528814C1 (en) * 1995-08-05 1996-10-10 Fischer Rohrtechnik Gmbh Telescopic electric vacuum cleaner suction pipe
DE19706210B4 (en) * 1997-02-18 2007-03-29 Fon Telescopic Systems Gmbh Telescopic vacuum cleaner suction tube
WO2000008997A1 (en) * 1999-02-09 2000-02-24 Eunsung Electronics Co., Ltd. A suction pipe of a vacuum cleaner
DE10030304A1 (en) * 2000-06-27 2002-02-14 Froh House Tech Gmbh & Co Kg Plug-in vacuum cleaner tube arrangement
KR101304606B1 (en) * 2011-11-02 2013-09-05 강소국신금속제품유한회사 Telescopic pipe of vacuum cleaner

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US3351363A (en) * 1964-12-23 1967-11-07 Electrolux Corp Adjustable length wand
US4240466A (en) * 1979-01-15 1980-12-23 Parker-Hannifin Corporation Push-pull coupling
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DE3718578C1 (en) * 1987-06-03 1988-06-23 Froh Roehren Telescopic suction tube for vacuum cleaner - has inner section forming arresting strip with deformed region with arresting recesses
EP0399177A1 (en) * 1989-05-20 1990-11-28 Carl Froh Röhrenwerk GmbH &amp; Co Telescopic vacuum cleaner suction hose
DE4101049A1 (en) * 1991-01-16 1992-07-23 Miele & Cie Telescopic suction tube for vacuum cleaner - secures inner tube to outer by relative rotation, inner tube wall having indented arrest recesses working with arresting element

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Publication number Priority date Publication date Assignee Title
US3351363A (en) * 1964-12-23 1967-11-07 Electrolux Corp Adjustable length wand
US4240466A (en) * 1979-01-15 1980-12-23 Parker-Hannifin Corporation Push-pull coupling
DE8127370U1 (en) * 1981-09-18 1982-03-18 Argus Verwaltungsgesellschaft Mbh, 7505 Ettlingen QUICK-RELEASE COUPLING FOR FLUID MEDIUM LINES, IN PARTICULAR HYDRAULIC LINES
DE3718578C1 (en) * 1987-06-03 1988-06-23 Froh Roehren Telescopic suction tube for vacuum cleaner - has inner section forming arresting strip with deformed region with arresting recesses
EP0399177A1 (en) * 1989-05-20 1990-11-28 Carl Froh Röhrenwerk GmbH &amp; Co Telescopic vacuum cleaner suction hose
DE4101049A1 (en) * 1991-01-16 1992-07-23 Miele & Cie Telescopic suction tube for vacuum cleaner - secures inner tube to outer by relative rotation, inner tube wall having indented arrest recesses working with arresting element

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1095639C (en) * 1995-08-10 2002-12-11 三洋电机株式会社 Extension hose for electric suction cleaner
US5954370A (en) * 1995-09-28 1999-09-21 U.S. Philips Corporation Tube coupling with axially movable unlocking slide
WO1997012168A1 (en) * 1995-09-28 1997-04-03 Philips Electronics N.V. Tube coupling with axially movable unlocking slide
CN1105544C (en) * 1997-02-14 2003-04-16 弗罗豪斯技术两合公司 Telescopic sucking pipe of dust cleaner
EP0893089A1 (en) * 1997-07-25 1999-01-27 Apparatur Verfahren S.A. Telescopic suction tube for vacuum cleaner, locking device for this tube and application of this device in a suction tube
WO1999035409A1 (en) * 1998-01-07 1999-07-15 Tubalco Manufacturing Pty. Ltd. Locking arrangement for telescopically moving tubes
WO2000000075A1 (en) * 1998-06-30 2000-01-06 Daewoo Electronics Co., Ltd. Telescopable wand assembly of a vacuum cleaner
US6237962B1 (en) 1998-06-30 2001-05-29 Daewoo Electronics Co., Ltd. Telescopable wand assembly of a vacuum cleaner
US6494492B1 (en) 1999-02-09 2002-12-17 Jong Mok Ha Suction pipe of a vacuum cleaner
WO2000067631A1 (en) * 1999-05-10 2000-11-16 Kwang Dong Precision Co., Ltd. A length adjusting device for suction pipe of vacuum cleaner
KR100769267B1 (en) * 1999-10-11 2007-10-23 오멕 에스.피.에이. Telescopic extension for an electric household appliance
EP1092383A1 (en) * 1999-10-11 2001-04-18 OMEC S.p.A. Telescopic extension for an electric household appliance
AU770833B2 (en) * 1999-10-11 2004-03-04 Omec S.P.A. Telescopic extension for an electric household appliance
US6435754B1 (en) 1999-10-11 2002-08-20 Omec S.P.A. Telescopic extension for an electric household appliance
EP1106133A1 (en) * 1999-12-07 2001-06-13 Wuxian Yuexi Power Cable and Electrical Factory Telescopic vacuum cleaner suction pipe
US6513191B1 (en) * 1999-12-11 2003-02-04 Kwang Dong Precision Co., Ltd. Device for adjusting suction pipe length of a vacuum cleaner
CN1303933C (en) * 2004-12-15 2007-03-14 徐为尔 Sucker of vacuum cleaner
WO2007112839A1 (en) * 2006-03-31 2007-10-11 Omec S.P.A. Telescopic extension for an electric household appliance
US8038173B2 (en) 2006-03-31 2011-10-18 Omec S.P.A. Telescopic extension for an electric household appliance
US20130081226A1 (en) * 2011-09-29 2013-04-04 Dyson Technology Limited Upright vacuum cleaner
US9339161B2 (en) * 2011-09-29 2016-05-17 Dyson Technology Limited Upright vacuum cleaner
WO2019029603A1 (en) * 2017-08-09 2019-02-14 天佑电器（苏州）有限公司 Telescopic tube device and vacuum cleaner having same
US11399681B2 (en) 2017-08-09 2022-08-02 Skybest Electric Appliance (Suzhou) Co., Ltd. Telescopic tube device and vacuum cleaner having same

Also Published As

Publication number Publication date
GR3020088T3 (en) 1996-08-31
DE4200527C2 (en) 1995-11-09
DE59206313D1 (en) 1996-06-20
ES2088079T3 (en) 1996-08-01
ATE137936T1 (en) 1996-06-15
DK0552481T3 (en) 1996-06-03
DE4200527A1 (en) 1993-07-22
EP0552481B1 (en) 1996-05-15

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