EP1127661A1 - Device for fastening a handle to a tool - Google Patents

Device for fastening a handle to a tool Download PDF

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Publication number
EP1127661A1
EP1127661A1 EP00101844A EP00101844A EP1127661A1 EP 1127661 A1 EP1127661 A1 EP 1127661A1 EP 00101844 A EP00101844 A EP 00101844A EP 00101844 A EP00101844 A EP 00101844A EP 1127661 A1 EP1127661 A1 EP 1127661A1
Authority
EP
European Patent Office
Prior art keywords
inner part
fastening device
handle
thread
adjusting sleeve
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
EP00101844A
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German (de)
French (fr)
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EP1127661B1 (en
Inventor
Manfred Bickel
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to ES00101844T priority Critical patent/ES2195810T3/en
Priority to EP00101844A priority patent/EP1127661B1/en
Priority to AT00101844T priority patent/ATE235993T1/en
Priority to DE50001605T priority patent/DE50001605D1/en
Priority to US09/769,698 priority patent/US6461075B2/en
Publication of EP1127661A1 publication Critical patent/EP1127661A1/en
Application granted granted Critical
Publication of EP1127661B1 publication Critical patent/EP1127661B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/12—Locking and securing devices
    • B25G3/28—Locking and securing devices comprising wedges, keys, or like expanding means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7062—Clamped members
    • Y10T403/7064—Clamped members by wedge or cam
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/76—Joints and connections having a cam, wedge, or tapered portion

Definitions

  • the invention relates to a fastening device for attaching a handle to a Tool, especially a cleaning or conveying tool (such as a broom, Scrubber or window cleaner or a shovel or a snow shovel) after Preamble of claim 1.
  • a cleaning or conveying tool such as a broom, Scrubber or window cleaner or a shovel or a snow shovel
  • a fastening device of the generic type is known from DE-U-296 03 433.
  • This fastening device accordingly comprises an inner part with a first End for rigid connection with a handle and a second end for detachable Connection with a tool, with an expansion cone at this end and in one an external thread is provided in the central region of the inner part.
  • the expansion cone is surrounded by three and held together by a rubber ring compared to the inner part axially displaceable fasteners, which at a Slide the axial displacement along the expansion cone and be deformed by it.
  • the Axial displacement is caused by a in the fastener on the one hand engaging and on the other hand surrounding the inner part, the adjustment sleeve Internal thread is engaged with the external thread of the inner part.
  • This fastening device represents a significant improvement over the past known devices, in particular with regard to simple manufacture and Handling and a fairly long lifespan. Nevertheless, it still offers Possibilities for improvement regarding the flexibility of their application as well of a simple and compact structure and particularly high durability.
  • the object of the invention is therefore to further develop these aspects to provide improved fastening device of the generic type.
  • the invention includes the essential idea, the adjusting sleeve (in coordination on the design of the inner part) on the one hand more compact and easier to design and at the same time the possibility of attaching stems with different common wall thicknesses (and possibly also made of different materials) create.
  • the invention further includes the idea of this annular gap - the when using Stems with a relatively small wall thickness are of course not completely closed by the stem will - to drain continuously in use. This is especially in the Use with cleaning tools prevents them from becoming permanently chemical there accumulate aggressive cleaning fluids and corrosion of a metallic Handle or damage to the fastener itself.
  • Dewatering means drainage channels or openings are provided by the Go out annular gap and collect water or cleaning agent there Derive use of the tool.
  • Water drainage channels are in a simple and inexpensive to implement Water drainage channels as water drainage channels in the external thread of the inner part or in Internal thread of the adjustment sleeve. Both options can also be combined. To ensure rapid drainage of the annular gap regardless of the concrete Angular position of the handle or the fastening device attached to it ensure, are expediently three or more, in particular six, Water drainage channels provided.
  • the length of the internal and external thread on the inner part or the adjusting sleeve is preferably in the range between 0.5 times and 1.2 times the thread diameter, which is advantageously the realization of a material and space-saving Fastening device allows. This thought is also considered independent Invention claimed. After appropriate tests, it has been shown that less than 10 Threads, especially 8 to 9 threads, even in continuous operation are sufficient.
  • the length of the male thread protecting the inner thread even when adjusted, thread-free cover section of the adjusting sleeve corresponds to at least half of the Length of the internal and external thread section.
  • the concrete dimensioning will follow Align the intended adjustment range of the fasteners on the expansion cone. While in the generic state of the art, the adjusting sleeve on its handle facing away Page was covered with a separate cap sleeve, it is here as extreme advantageous training - regardless of the specific training of Drainage agent - viewed, the adjustment sleeve open at its end facing away from the handle to train.
  • the width of the annular gap between the adjusting sleeve and the inner part is expediently at least 10%, preferably in the range between 15 and 30%, of the radius of the Inside. This enables the use of all essential commercial types of Stems for the corresponding tools.
  • the inner part is preferred for use conditions - especially in the area of its External thread - essentially made of solid material.
  • the one facing the stem End expediently points to facilitate the sliding of a tubular Stems on a slot and / or a central recess that a certain Allow to compress the end of the inner part.
  • the entire fastening device is preferably made of a weaker one Acids and bases or other chemically aggressive cleaning solutions in the essential resistant plastic.
  • the invention also includes a handle with a fastening device Type described above, wherein the handle is rigidly connected to the fastening device is.
  • the rigid connection can in particular by casting, gluing or Welding be made.
  • the figure shows a fastening device 1 for attaching an aluminum tube handle 3 on a tool (not shown), for example a scrubbing or Window cleaner head.
  • the fastening device 1 is in all parts from one Made of detergent-resistant plastic and includes an inner part 5, with three in in their entirety the fastening elements surrounding the inner part, of which in the figure the two fastening elements 7.1, 7.2 can be seen, and an adjusting sleeve (Outer part) 9.
  • the inner part 5 has an end region 5a connected to the handle 3 large slot 11, which has a slight elastic compression of the Inner part end portion 5a for pushing the handle 3 enables.
  • the stem 3 can Inner part 5 held by press fit alone or with the end region 5a additionally be glued.
  • the inner part 5 has an external thread (Left-hand thread) 13, the length of which is approximately 2/3 of the thread diameter and that has nine gears in the example shown.
  • an external thread Left-hand thread 13
  • the side facing away from the end region 5a connects to the external thread with the Water drainage channels 15 in the further course of the inner part 5, a cylindrical section 5b with approximately the same diameter as the end region 5a, the one (in the figure Has not separately designated) chamfer and to which a second, longer cylindrical Section 5c connects with a significantly smaller diameter.
  • a cylindrical section 5b with approximately the same diameter as the end region 5a, the one (in the figure Has not separately designated) chamfer and to which a second, longer cylindrical Section 5c connects with a significantly smaller diameter.
  • Between the first cylindrical portion 5b and second cylindrical portion 5c has this Inner part 5 on a flat, annular end face 5d.
  • On the second cylindrical Section 5c includes an expansion cone 17, i. H. one to the other end of the inner part 5 truncated cone section extending to.
  • a chamfer At the end of the inner part 5 of the Spreading cone is a chamfer (again not specifically designated).
  • the three fasteners (of which the two fasteners in the figure 7.1, 7.2) surround the second cylindrical section 5c and Spreading cone 17 of the inner part 5 each in an angular range of 120 ° and close in tangential direction to each other, so that the front region of the inner part 5 is completely surrounded by fasteners.
  • the fasteners 7.1, 7.2 each include an end section 7.1a or 7.2a with an approximately wedge-shaped Cross section, which abuts the expansion cone 17 and one continuously towards the end has decreasing wall thickness.
  • the fastening elements 7.1, 7.2 each have a raised one Edge areas (which are not specifically designated in the figure) provided annular Groove 7.1b or 7.2b.
  • the annular grooves 7.1b, 7.2b each enclose in the direction of the stem 3 Cylinder segment section 7.1c, 7.2c of the fastening elements 7.1, 7.2, and on the latter At the end there is an engagement section 7.1d, 7.2d, where the fastening elements 7.1, 7.2 (as well as the third fastening element, not shown here) their largest Have outside diameter.
  • the engagement sections 7.1d, 7.2d each have an axially extending one Recess 7.1e, 7.2e for the - described in more detail below - Cooperation with the adjusting sleeve 9.
  • the stem 3 facing End faces 7.1f, 7.2f of the fastening elements 7.1, 7.2 which are in the form of segments of a circle sit in the state of the fastening device 1 on the end face 5d shown in the figure of the inner part 5, whereby a stop position of the through the fasteners formed fastener is defined in the direction of the handle 3.
  • the adjusting sleeve 9 has three starting from an annular central section 9a Engagement clips 21 (of which only two can be seen in the figure), the run axially and the recesses 7.1e, 7.2e of the engagement portions of the Pass through fasteners 7.1, 7.2. On the engagement clasps 21 The side of the central section 9a facing away from the handle 3 follows this a sleeve section 23, which over the greater part of its length Internal thread 25 carries, which engages with the external thread 13 of the inner part 5 stands.
  • the end region 23a of the sleeve section 23 facing the stem 3 has no internal thread and has an enlarged inner diameter, so that in the from End region 23a of the adjusting sleeve 9 surrounding end region of the stem 3 between the Adjustment sleeve and the stem forms an annular gap 27.
  • the adjusting sleeve 9 also shows in their middle section 9a water drainage channels 29, which over the water drainage channels 15th in the external thread 13 of the inner part 5 with the annular gap 27 in fluid communication.
  • the inner part 5 is first on one of the above-mentioned ways rigidly connected (in particular rotationally fixed) to the handle 3. Then the adjusting sleeve 9 is over the cone 17 and the second cylindrical Section 5c plugged onto the inner part 5 and with its internal thread 25 on it External thread 13 screwed on. Finally, the fasteners 7.1, 7.2 also placed on the cone 17 on the inner part 5, in such a way that the Engagement clips 21 come to rest in the recesses 7.1e, 7.2e. Finally the fasteners by slipping on the rubber ring 19 and setting the same in the annular groove 7.1b, 7.2b around the inner part 5 and clamped.
  • the fastening device 1 d. H. the expansion cone 17 with these encompassing End sections (in the figure, sections 7.1a, 7.2a) of the fastening elements, in a bore provided for attaching a handle to the tool.
  • the adjusting sleeve 9 is gripped by hand and shown in the figure from it Stop position rotated relative to the inner part 5.
  • the adjusting sleeve 9 runs with it their internal thread section 25 on the external thread 13 of the inner part and moves axially away from the end of the stem 3 (upwards in the figure) and takes the Fasteners 7.1, 7.2 with.
  • the end region 23a is dimensioned such that the annular gap 27 has sufficient space for the Attachment of handles 3 with different wall thickness on the inner part 5 offers.
  • Cleaning liquid is in the assembled state via the water drainage channels 15, 29 of the tool-formed annular gap between the end face 5d of the inner part 5 and the end faces 7.1f, 7.2f of the fastening elements 7.1, 7.2 derived and flows from there quickly over the fasteners or through their recesses 7.1e, 7.2e off again. So no cleaning liquid can accumulate in the annular gap Duration of the end of the stem 3 or (for chemically aggressive ingredients) also that Component surfaces relatively resistant to normal cleaning agents could attack the fastener.
  • a suitably structured one, in particular one running axially and / or tangentially Recessing version of the end of the inner part facing the handle advantageously ensures a simple and nevertheless secure connection between the inner part and the stem, for example by an interference fit or by Shed.

Abstract

A device for securing a handle on a tool and including inner member having a first end to be fixedly connected with the handle, a second end formed as an expansion cone to be releasably connected with the tool, and an outer thread provided between the first and second end, a securing element surrounding the expansion cone and displaceable along the cone, and an adjusting sleeve surrounding the inner member, engageable in the securing element, and having an inner thread cooperating with the outer thread provided on the inner member for enabling displacement of the securing means relative to the inner member upon rotation of the adjusting sleeve, with the adjusting sleeve having, at its handle end, a thread-free cover section forming with an outer circumference of the inner member an annular clearance, which provides for securing handles having different diameters, and with the device further including drain channels communicating with the annular clearance.

Description

Die Erfindung betrifft eine Befestigungsvorrichtung zur Anbringung eines Stiels an einem Werkzeug, insbesondere einem Reinigungs- oder Förderwerkzeug (wie einem Besen, Schrubber oder Fensterreiniger oder einer Schaufel oder einem Schneeschieber) nach dem Oberbegriff des Anspruchs 1.The invention relates to a fastening device for attaching a handle to a Tool, especially a cleaning or conveying tool (such as a broom, Scrubber or window cleaner or a shovel or a snow shovel) after Preamble of claim 1.

Ähnliche Befestigungsvorrichtungen sind beispielsweise bekannt aus der DE-U-76 29 578, der DE-U-76 32 002, der DE-U-1 864 324 oder der DE-A-624 882.Similar fastening devices are known for example from DE-U-76 29 578, DE-U-76 32 002, DE-U-1 864 324 or DE-A-624 882.

Eine Befestigungsvorrichtung der gattungsgemäßen Art ist bekannt aus der DE-U-296 03 433. Diese Befestigungsvorrichtung umfaßt demgemäß ein Innenteil mit einem ersten Ende zur starren Verbindung mit einem Stiel und einem zweiten Ende zur lösbaren Verbindung mit einem Werkzeug, wobei an diesem Ende ein Spreizkonus und in einem mittlerem Bereich des Innenteils ein Außengewinde vorgesehen ist. Der Spreizkonus ist umgeben von drei durch einen Gummiring zusammengehaltenen und gemeinsam gegenüber dem Innenteil axial verschieblichen Befestigungselementen, die bei einer Axialverschiebung längs des Spreizkonus gleiten und durch diesen verformt werden. Die Axialverschiebung wird bewirkt durch eine in das Befestigungsmittel einerseits eingreifende und andererseits das Innenteil umgebende Verstellhülse, die über ein Innengewinde mit dem Außengewinde des Innenteils im Eingriff steht.A fastening device of the generic type is known from DE-U-296 03 433. This fastening device accordingly comprises an inner part with a first End for rigid connection with a handle and a second end for detachable Connection with a tool, with an expansion cone at this end and in one an external thread is provided in the central region of the inner part. The expansion cone is surrounded by three and held together by a rubber ring compared to the inner part axially displaceable fasteners, which at a Slide the axial displacement along the expansion cone and be deformed by it. The Axial displacement is caused by a in the fastener on the one hand engaging and on the other hand surrounding the inner part, the adjustment sleeve Internal thread is engaged with the external thread of the inner part.

Diese Befestigungsvorrichtung stellt eine wesentliche Verbesserung gegenüber früher bekannten Vorrichtungen dar, insbesondere hinsichtlich einer einfachen Herstellung und Handhabung und einer recht langen Lebensdauer. Sie bietet gleichwohl noch Verbesserungsmöglichkeiten hinsichtlich der Flexibilität ihrer Anwendung sowie auch eines einfachen und kompakten Aufbaus und besonders hoher Langlebigkeit. This fastening device represents a significant improvement over the past known devices, in particular with regard to simple manufacture and Handling and a fairly long lifespan. Nevertheless, it still offers Possibilities for improvement regarding the flexibility of their application as well of a simple and compact structure and particularly high durability.

Der Erfindung liegt daher die Aufgabe zugrunde, eine in diesen Aspekten weiter verbesserte Befestigungsvorrichtung der gattungsgemäßen Art anzugeben.The object of the invention is therefore to further develop these aspects to provide improved fastening device of the generic type.

Diese Aufgabe wird durch eine Befestigungsvorrichtung mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a fastening device with the features of Claim 1 solved.

Die Erfindung schließt den wesentlichen Gedanken ein, die Verstellhülse (in Abstimmung auf die Ausführung des Innenteils) einerseits kompakter und einfacher zu gestalten und zugleich die Möglichkeit der Anbringung von Stielen mit unterschiedlichen gebräuchlichen Wandstärken (und also ggf. auch aus verschiedenen Materialien) zu schaffen.The invention includes the essential idea, the adjusting sleeve (in coordination on the design of the inner part) on the one hand more compact and easier to design and at the same time the possibility of attaching stems with different common wall thicknesses (and possibly also made of different materials) create.

Dieser Grundgedanke hat Anlaß zum Vorsehen eines gewindefreien Abdeckabschnittes am stielseitigen Ende der Verstellhülse gegeben, der ausreichend breit bemessen ist, um das Aufschieben von rohrförmigen Stielen mit unterschiedlichen Wandstärken auf das Innenteil zu ermöglichen.This basic idea gives rise to the provision of a thread-free cover section on given the stem-side end of the adjusting sleeve, which is dimensioned sufficiently wide to Pushing tubular stems with different wall thicknesses onto the Allow inner part.

Die Erfindung schließt weiterhin den Gedanken ein, diesen Ringspalt - der bei Einsatz von Stielen mit relativ geringer Wandstärke durch den Stiel natürlich nicht vollständig verschlossen wird - im Gebrauch kontinuierlich zu entwässern. Dadurch wird speziell beim Einsatz mit Reinigungswerkzeugen verhindert, daß sich dort dauerhaft chemisch aggressive Reinigungsflüssigkeiten ansammeln und eine Korrosion eines metallischen Stiels oder auch Schäden der Befestigungsvorrichtung selbst, verursachen. Als Entwässerungsmittel sind Wasserablaufkanäle oder -öffnungen vorgesehen, die von dem Ringspalt ausgehen und dort angesammeltes Wasser bzw. Reinigungsmittel beim Gebrauch des Werkzeugs ableiten.The invention further includes the idea of this annular gap - the when using Stems with a relatively small wall thickness are of course not completely closed by the stem will - to drain continuously in use. This is especially in the Use with cleaning tools prevents them from becoming permanently chemical there accumulate aggressive cleaning fluids and corrosion of a metallic Handle or damage to the fastener itself. As Dewatering means drainage channels or openings are provided by the Go out annular gap and collect water or cleaning agent there Derive use of the tool.

In einer einfachen und kostengünstig zu realisierenden Ausführung sind die Wasserablaufkanäle als Wasserablaufrinnen im Außengewinde des Innenteils oder auch im Innengewinde der Verstellhülse ausgeführt. Beide Möglichkeiten sind auch kombinierbar. Um eine schnelle Entwässerung des Ringspaltes unabhängig von der konkreten Winkellage des Stiels bzw. der daran angebrachten Befestigungsvorrichtung zu gewährleisten, sind zweckmäßigerweise drei oder mehr, insbesondere sechs, Wasserablaufrinnen vorgesehen.These are in a simple and inexpensive to implement Water drainage channels as water drainage channels in the external thread of the inner part or in Internal thread of the adjustment sleeve. Both options can also be combined. To ensure rapid drainage of the annular gap regardless of the concrete Angular position of the handle or the fastening device attached to it ensure, are expediently three or more, in particular six, Water drainage channels provided.

Die Länge des Innen- und Außengewindes am Innenteil bzw. der Verstellhülse liegt bevorzugt im Bereich zwischen dem 0,5-fachen und dem 1,2-fachen Gewindedurchmesser, was in vorteilhafter Weise die Realisierung einer material- und platzsparenden Befestigungsvorrichtung ermöglicht. Dieser Gedanke wird auch als unabhängige Erfindung beansprucht. Es hat sich nach entsprechenden Tests gezeigt, daß weniger als 10 Gewindegänge, insbesondere 8 bis 9 Gewindegänge auch im dauerhaften Betrieb ausreichend sind.The length of the internal and external thread on the inner part or the adjusting sleeve is preferably in the range between 0.5 times and 1.2 times the thread diameter, which is advantageously the realization of a material and space-saving Fastening device allows. This thought is also considered independent Invention claimed. After appropriate tests, it has been shown that less than 10 Threads, especially 8 to 9 threads, even in continuous operation are sufficient.

Die Länge des das Außengewinde am Innenteil auch im verstellten Zustand schützenden, gewindefreien Abdeckabschnitts der Verstellhülse entspricht mindestens der Hälfte der Länge des Innen- und Außengewindeabschnitts. Die konkrete Bemessung wird sich nach dem vorgesehen Verstellbereich der Befestigungsmittel am Spreizkonus richten . Während beim gattungsbildenden Stand der Technik die Verstellhülse an ihrer stielabgewandten Seite mit einer separaten Überwurfhülse abgedeckt wurde, wird es vorliegend als äußerst vorteilhafte Ausbildung - auch unabhängig von der konkreten Ausbildung der Entwässerungsmittel ― angesehen, die Verstellhülse an ihrem stielabgewandten Ende offen auszubilden.The length of the male thread protecting the inner thread even when adjusted, thread-free cover section of the adjusting sleeve corresponds to at least half of the Length of the internal and external thread section. The concrete dimensioning will follow Align the intended adjustment range of the fasteners on the expansion cone. While in the generic state of the art, the adjusting sleeve on its handle facing away Page was covered with a separate cap sleeve, it is here as extreme advantageous training - regardless of the specific training of Drainage agent - viewed, the adjustment sleeve open at its end facing away from the handle to train.

Die Breite des Ringspaltes zwischen Verstellhülse und Innenteil liegt zweckmäßigerweise bei mindestens 10 %, bevorzugt im Bereich zwischen 15 und 30 %, des Radius des Innenteils. Dies ermöglicht den Einsatz aller wesentlichen handelsüblichen Typen von Stielen für die entsprechenden Werkzeuge.The width of the annular gap between the adjusting sleeve and the inner part is expediently at least 10%, preferably in the range between 15 and 30%, of the radius of the Inside. This enables the use of all essential commercial types of Stems for the corresponding tools.

Im Interesse hoher Lebensdauer und Robustheit auch unter professionellen Einsatzbedingungen ist das Innenteil bevorzugt - insbesondere im Bereich seines Außengewindes - im wesentlichen aus Vollmaterial gefertigt. Das dem Stiel zugewandte Ende weist zweckmäßigerweise zur Erleichterung des Aufschiebens eines rohrförmigen Stiels einen Schlitz und/oder auch eine zentrale Ausnehmung auf, die ein gewisses Zusammendrücken des Endes des Innenteils erlauben. In the interest of a long service life and robustness even among professionals The inner part is preferred for use conditions - especially in the area of its External thread - essentially made of solid material. The one facing the stem End expediently points to facilitate the sliding of a tubular Stems on a slot and / or a central recess that a certain Allow to compress the end of the inner part.

Die gesamte Befestigungsvorrichtung ist bevorzugt aus einem gegenüber schwachen Säuren und Basen bzw. in sonstiger Weise chemisch aggressiven Reinigungslösungen im wesentlichen resistenten Kunststoff gefertigt. Sie kommt insbesondere völlig ohne metallische Teile aus, die bekanntlich unter den angesprochenen Einsatzbedingungen besonders korrosionsgefährdet sind.The entire fastening device is preferably made of a weaker one Acids and bases or other chemically aggressive cleaning solutions in the essential resistant plastic. In particular, it comes completely without metallic parts, which are known to operate under the conditions mentioned are particularly at risk of corrosion.

Die Erfindung umfaßt schließlich auch einen Stiel mit einer Befestigungsvorrichtung der oben beschriebenen Art, wobei der Stiel mit der Befestigungsvorrichtung starr verbunden ist. Die starre Verbindung kann insbesondere durch Vergießen, Verkleben oder Verschweißen hergestellt sein.Finally, the invention also includes a handle with a fastening device Type described above, wherein the handle is rigidly connected to the fastening device is. The rigid connection can in particular by casting, gluing or Welding be made.

Vorteile und Zweckmäßigkeiten der Erfindung ergeben sich im übrigen aus den Unteransprüchen sowie der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels anhand der einzigen Figur.Advantages and advantages of the invention emerge from the rest of the Subclaims and the following description of a preferred Embodiment based on the single figure.

Die Figur zeigt eine Befestigungsvorrichtung 1 zur Anbringung eines Aluminiumrohr-Stieles 3 an einem (nicht dargestellten) Werkzeug, beispielsweise einem Schrubber- oder Fensterreinigerkopf. Die Befestigungsvorrichtung 1 ist in allen Teilen aus einem reinigungsmittelbeständigen Kunststoff gefertigt und umfaßt ein Innenteil 5, mit drei in ihrer Gesamtheit das Innenteil umgebende Befestigungselemente, von denen in der Figur die beiden Befestigungselemente 7.1, 7.2 zu erkennen sind, und eine Verstellhülse (Außenteil) 9.The figure shows a fastening device 1 for attaching an aluminum tube handle 3 on a tool (not shown), for example a scrubbing or Window cleaner head. The fastening device 1 is in all parts from one Made of detergent-resistant plastic and includes an inner part 5, with three in in their entirety the fastening elements surrounding the inner part, of which in the figure the two fastening elements 7.1, 7.2 can be seen, and an adjusting sleeve (Outer part) 9.

Das Innenteil 5 weist in seinem mit dem Stiel 3 verbundenen Endbereich 5a einen großräumigen Schlitz 11 auf, der ein geringfügiges elastisches Zusammendrücken des Innenteil-Endbereiches 5a zum Aufschieben des Stieles 3 ermöglicht. Der Stiel 3 kann am Innenteil 5 allein durch Preßpassung gehalten oder mit dem Endbereich 5a zusätzlich verklebt sein.The inner part 5 has an end region 5a connected to the handle 3 large slot 11, which has a slight elastic compression of the Inner part end portion 5a for pushing the handle 3 enables. The stem 3 can Inner part 5 held by press fit alone or with the end region 5a additionally be glued.

In einigem Abstand vom Ende des Schlitzes 11 weist das Innenteil 5 ein Außengewinde (Linksgewinde) 13 auf, dessen Länge etwa 2/3 des Gewindedurchmesser beträgt und das im dargestellten Beispiel neun Gänge aufweist. In das Außengewinde 13 sind mehrere axial verlaufende Wasserablaufrinnen 15 mit im wesentlichen rechteckigem Querschnitt eingearbeitet, von denen in der Figur zwei zu erkennen sind.At some distance from the end of the slot 11, the inner part 5 has an external thread (Left-hand thread) 13, the length of which is approximately 2/3 of the thread diameter and that has nine gears in the example shown. There are several in the external thread 13 axially extending water drainage channels 15 with a substantially rectangular cross section incorporated, two of which can be seen in the figure.

Der dem Endbereich 5a abgewandten Seite schließt sich an das Außengewinde mit den Wasserablaufrinnen 15 im weiteren Verlauf des Innenteils 5 ein zylindrischer Abschnitt 5b mit annähernd dem gleichen Durchmesser wie der Endbereich 5a an, der eine (in der Figur nicht gesondert bezeichnete) Anfasung aufweist und an den sich ein zweiter, längerer zylindrischer Abschnitt 5c mit deutlich geringerem Durchmesser anschließt. Zwischen dem ersten zylindrischen Abschnitt 5b und dem zweiten zylindrischen Abschnitt 5c weist das Innenteil 5 eine ebene, kreisringförmige Stirnfläche 5d auf. An den zweiten zylindrischen Abschnitt 5c schließt sich ein Spreizkonus 17, d. h. ein sich zum anderen Ende des Innenteils 5 hin erweiternder Kegelstumpfabschnitt, an. Am Ende des Innenteils 5 trägt der Spreizkonus eine (wiederum nicht gesondert bezeichnete) Anfasung.The side facing away from the end region 5a connects to the external thread with the Water drainage channels 15 in the further course of the inner part 5, a cylindrical section 5b with approximately the same diameter as the end region 5a, the one (in the figure Has not separately designated) chamfer and to which a second, longer cylindrical Section 5c connects with a significantly smaller diameter. Between the first cylindrical portion 5b and second cylindrical portion 5c has this Inner part 5 on a flat, annular end face 5d. On the second cylindrical Section 5c includes an expansion cone 17, i. H. one to the other end of the inner part 5 truncated cone section extending to. At the end of the inner part 5 of the Spreading cone is a chamfer (again not specifically designated).

Die drei Befestigungselemente (von denen in der Figur die beiden Befestigungselemente 7.1, 7.2 gezeigt sind) umgeben den zweiten zylindrischen Abschnitt 5c und den Spreizkonus 17 des Innenteils 5 jeweils in einem Winkelbereich von 120° und schließen in tangentialer Richtung aneinander an, so daß der vordere Bereich des Innenteils 5 vollständig von Befestigungselementen umgeben ist. Die Befestigungselemente 7.1, 7.2 umfassen jeweils einen Endabschnitt 7.1a bzw. 7.2a mit annähernd keilförmigem Querschnitt, der am Spreizkonus 17 anliegt und eine zu dessen Ende hin kontinuierlich geringer werdende Wandstärke aufweist. In Höhe des zweiten zylindrischen Abschnitts 5c des Innenteils 5 weisen die Befestigungselemente 7.1, 7.2 jeweils eine mit erhabenen Randbereichen (die in der Figur nicht gesondert bezeichnet sind) versehene ringförmige Nut 7.1b bzw. 7.2b auf. Im montierten Zustand der Befestigungsvorrichtung 1 liegt in den ringförmigen Nuten der aneinander anschließenden Befestigungselemente, die dann eine umlaufende Ringnut bilden, ein Gummiring 19, der die Befestigungselemente um das Innenteil 5 zusammenhält und zugleich ihre Endabschnitte gegen den Spreizkonus 17 elastisch vorspannt.The three fasteners (of which the two fasteners in the figure 7.1, 7.2) surround the second cylindrical section 5c and Spreading cone 17 of the inner part 5 each in an angular range of 120 ° and close in tangential direction to each other, so that the front region of the inner part 5 is completely surrounded by fasteners. The fasteners 7.1, 7.2 each include an end section 7.1a or 7.2a with an approximately wedge-shaped Cross section, which abuts the expansion cone 17 and one continuously towards the end has decreasing wall thickness. At the level of the second cylindrical section 5c of the inner part 5, the fastening elements 7.1, 7.2 each have a raised one Edge areas (which are not specifically designated in the figure) provided annular Groove 7.1b or 7.2b. In the assembled state of the fastening device 1 is in the annular grooves of the adjoining fasteners, which then form a circumferential annular groove, a rubber ring 19 which the fasteners around Inner part 5 holds together and at the same time their end sections against the expansion cone 17th preloaded elastically.

An die ringförmigen Nuten 7.1b, 7.2b schließt sich in Richtung zum Stiel 3 hin jeweils ein Zylindersegment-Abschnitt 7.1c, 7.2c der Befestigungselemente 7.1, 7.2 an, und an dessen Ende befindet sich jeweils ein Eingriffsabschnitt 7.1d, 7.2d, wo die Befestigungselemente 7.1, 7.2 (ebenso wie das dritte, hier nicht dargestellte Befestigungselement) ihren größten Außendurchmesser haben. Die Eingriffsabschnitt 7.1d, 7.2d haben jeweils eine axial verlaufende Ausnehmung 7.1e, 7.2e zum - weiter unten genauer beschriebenen - Zusammenwirken mit der Verstellhülse 9. Die dem Stiel 3 zugewandten kreissegmentförmigen Stirnflächen 7.1f, 7.2f der Befestigungselemente 7.1, 7.2 sitzen in dem in der Figur gezeigten Zustand der Befestigungsvorrichtung 1 auf der Stirnfläche 5d des Innenteils 5 auf, womit eine Anschlagposition des durch die Befestigungselemente gebildeten Befestigungsmittels in Richtung auf den Stiel 3 hin definiert ist.The annular grooves 7.1b, 7.2b each enclose in the direction of the stem 3 Cylinder segment section 7.1c, 7.2c of the fastening elements 7.1, 7.2, and on the latter At the end there is an engagement section 7.1d, 7.2d, where the fastening elements 7.1, 7.2 (as well as the third fastening element, not shown here) their largest Have outside diameter. The engagement sections 7.1d, 7.2d each have an axially extending one Recess 7.1e, 7.2e for the - described in more detail below - Cooperation with the adjusting sleeve 9. The stem 3 facing End faces 7.1f, 7.2f of the fastening elements 7.1, 7.2 which are in the form of segments of a circle sit in the state of the fastening device 1 on the end face 5d shown in the figure of the inner part 5, whereby a stop position of the through the fasteners formed fastener is defined in the direction of the handle 3.

Die Verstellhülse 9 hat drei von einem kreisringförmigen Mittenabschnitt 9a ausgehende Eingriffsspangen 21 (von denen in der Figur wiederum nur zwei zu erkennen sind), die axial verlaufen und die Ausnehmungen 7.1e, 7.2e der Eingriffsabschnitte der Befestigungselemente 7.1, 7.2 durchgreifen. Auf der den Eingriffsspangen 21 abgewandten, dem Stiel 3 zugewandten Seite des Mittenabschnitts 9a schließt sich an diesen ein Hülsenabschnitt 23 an, der über den größeren Teil seiner Länge ein Innengewinde 25 trägt, welches mit dem Außengewinde 13 des Innenteils 5 im Eingriff steht. Der dem Stiel 3 zugewandte Endbereich 23a des Hülsenabschnitts 23 trägt kein Innengewinde und hat einen erweiterten Innendurchmesser, so daß sich in dem vom Endbereich 23a der Verstellhülse 9 umgebenden Endbereich des Stiels 3 zwischen der Verstellhülse und dem Stiel ein Ringspalt 27 ausbildet. Auch die Verstellhülse 9 weist in ihrem Mittenabschnitt 9a Wasserablaufrinnen 29 auf, die über die Wasserablaufrinnen 15 im Außengewinde 13 des Innenteils 5 mit dem Ringspalt 27 in Fluidverbindung stehen.The adjusting sleeve 9 has three starting from an annular central section 9a Engagement clips 21 (of which only two can be seen in the figure), the run axially and the recesses 7.1e, 7.2e of the engagement portions of the Pass through fasteners 7.1, 7.2. On the engagement clasps 21 The side of the central section 9a facing away from the handle 3 follows this a sleeve section 23, which over the greater part of its length Internal thread 25 carries, which engages with the external thread 13 of the inner part 5 stands. The end region 23a of the sleeve section 23 facing the stem 3 has no internal thread and has an enlarged inner diameter, so that in the from End region 23a of the adjusting sleeve 9 surrounding end region of the stem 3 between the Adjustment sleeve and the stem forms an annular gap 27. The adjusting sleeve 9 also shows in their middle section 9a water drainage channels 29, which over the water drainage channels 15th in the external thread 13 of the inner part 5 with the annular gap 27 in fluid communication.

Zur Montage der Befestigungsvorrichtung 1 wird zunächst das Innenteil 5 auf eine der oben erwähnten Weisen mit dem Stiel 3 starr (insbesondere drehfest) verbunden. Anschließend wird die Verstellhülse 9 über den Konus 17 und den zweiten zylindrischen Abschnitt 5c auf das Innenteil 5 aufgesteckt und mit ihrem Innengewinde 25 auf dessen Außengewinde 13 aufgeschraubt. Schließlich werden die Befestigungselemente 7.1, 7.2 ebenfalls über den Konus 17 auf das Innenteil 5 aufgesteckt, und zwar so, daß die Eingriffsspangen 21 in die Ausnehmungen 7.1e, 7.2e zu liegen kommen. Schließlich werden die Befestigungselemente durch Überstreifen des Gummirings 19 und Festlegen desselben in der Ringnut 7.1b, 7.2b um das Innenteil 5 festgelegt und verspannt. To assemble the fastening device 1, the inner part 5 is first on one of the above-mentioned ways rigidly connected (in particular rotationally fixed) to the handle 3. Then the adjusting sleeve 9 is over the cone 17 and the second cylindrical Section 5c plugged onto the inner part 5 and with its internal thread 25 on it External thread 13 screwed on. Finally, the fasteners 7.1, 7.2 also placed on the cone 17 on the inner part 5, in such a way that the Engagement clips 21 come to rest in the recesses 7.1e, 7.2e. Finally the fasteners by slipping on the rubber ring 19 and setting the same in the annular groove 7.1b, 7.2b around the inner part 5 and clamped.

Zum Befestigen des Stiels 3 an einem Werkzeug wird das dem Stiel 3 abgewandte Ende der Befestigungsvorrichtung 1, d. h. der Spreizkonus 17 mit den diesen umgreifenden Endabschnitten (in der Figur den Abschnitten 7.1a, 7.2a) der Befestigungselemente, in einer zur Befestigung eines Stiels vorgesehene Bohrung an dem Werkzeug eingesetzt. Dann wird mit der Hand die Verstellhülse 9 ergriffen und aus ihrer in der Figur gezeigten Anschlagstellung gegenüber dem Innenteil 5 verdreht. Die Verstellhülse 9 läuft dabei mit ihrem Innengewindeabschnitt 25 auf dem Außengewinde 13 des Innenteils und verschiebt sich axial vom Ende des Stieles 3 weg (in der Figur nach oben) und nimmt dabei die Befestigungselemente 7.1, 7.2 mit. Deren Endabschnitte 7.1a, 7.2a verschieben sich also gegenüber dem Spreizkonus 17 nach oben und werden dabei gegen die durch den Gummiring 19 ausgeübte Vorspannung am Spreizkonus 17 ggf. nach außen aufgespreizt. Die Verstellhülse 9 wird solange gedreht, bis die sich aufspreizenden Endabschnitte mit der Innenwandung der Bohrung am Werkzeug in feste Preßpassung kommen und also das Werkzeug über die Befestigungsvorrichtung 1 am Stiel befestigt ist. Die relativ geringe Steigung der Gewinde 13, 25 stellt einen großen Kraftweg bereit und ermöglicht damit ein Verspannen der Befestigungsvorrichtung im Werkzeug mit geringem Kraftaufwand.To attach the handle 3 to a tool, the end facing away from the handle 3 the fastening device 1, d. H. the expansion cone 17 with these encompassing End sections (in the figure, sections 7.1a, 7.2a) of the fastening elements, in a bore provided for attaching a handle to the tool. Then the adjusting sleeve 9 is gripped by hand and shown in the figure from it Stop position rotated relative to the inner part 5. The adjusting sleeve 9 runs with it their internal thread section 25 on the external thread 13 of the inner part and moves axially away from the end of the stem 3 (upwards in the figure) and takes the Fasteners 7.1, 7.2 with. Their end sections 7.1a, 7.2a thus shift with respect to the expansion cone 17 and are against the by the Rubber ring 19 exerted pretension on the expansion cone 17 possibly spread outwards. The adjusting sleeve 9 is rotated until the spreading end sections with the inner wall of the hole on the tool come in a tight press fit and that is Tool is attached to the handle via the fastening device 1. The relatively minor The pitch of the threads 13, 25 provides a large force path and thus enables one Clamping the fastening device in the tool with little effort.

Durch den Endbereich 23a des Hülsenabschnitts 23 der Verstellhülse 9 wird das Außengewinde 13 des Innenteils 5 auch im verdrehten (und axial verschobenen) Zustand der Verstellhülse 9 zuverlässig gegen Beschädigungen beim Gebrauch des Reinigungswerkzeuges geschützt.Through the end region 23a of the sleeve section 23 of the adjusting sleeve 9 External thread 13 of the inner part 5 also in the rotated (and axially displaced) state the adjusting sleeve 9 reliably against damage when using the Protected cleaning tool.

Der Endbereich 23a ist so bemessen, daß der Ringspalt 27 ausreichend Platz für die Anbringung von Stielen 3 mit unterschiedlicher Wandstärke am Innenteil 5 bietet. Das beim Eintauchen des Stielendes mit der Befestigungsvorrichtung 1 und dem Reinigungswerkzeug in einen Behälter mit Wischwasser oder einer anderen Reinigungsflüssigkeit sich im Ringspalt 27 ansammelnde Wischwasser bzw. die Reinigungsflüssigkeit wird über die Wasserablaufrinnen 15, 29 in den im montierten Zustand des Werkzeugs ausgebildeten Ringspalt zwischen der Stirnfläche 5d des Innenteils 5 und den Stirnflächen 7.1f, 7.2f der Befestigungselemente 7.1, 7.2 abgeleitet und fließt von dort über die Befestigungselemente bzw. durch deren Ausnehmungen 7.1e, 7.2e schnell wieder ab. Es kann sich also im Ringspalt keine Reinigungsflüssigkeit ansammeln, die auf Dauer das Ende des Stieles 3 bzw. (bei chemisch aggressiven Inhaltsstoffen) auch die gegenüber normalen Reinigungsmitteln relativ beständigen Oberflächen der Komponenten der Befestigungsvorrichtung angreifen könnte.The end region 23a is dimensioned such that the annular gap 27 has sufficient space for the Attachment of handles 3 with different wall thickness on the inner part 5 offers. The when immersing the handle end with the fastening device 1 and the Cleaning tools in a container with cleaning water or another Cleaning liquid or wiping water collecting in the annular gap 27 Cleaning liquid is in the assembled state via the water drainage channels 15, 29 of the tool-formed annular gap between the end face 5d of the inner part 5 and the end faces 7.1f, 7.2f of the fastening elements 7.1, 7.2 derived and flows from there quickly over the fasteners or through their recesses 7.1e, 7.2e off again. So no cleaning liquid can accumulate in the annular gap Duration of the end of the stem 3 or (for chemically aggressive ingredients) also that Component surfaces relatively resistant to normal cleaning agents could attack the fastener.

Die Ausführung der Erfindung ist nicht auf das beschriebene Beispiel beschränkt, sondern ebenso in Abwandlungen möglich, die im Rahmen fachgemäßen Handelns liegen. Insbesondere ist eine modifizierte Formgebung der Komponenten, insbesondere der Befestigungselemente bzw. der Eingriffsspangen der Verstellhülse, ebenso möglich wie eine einteilige und lediglich in den über dem Spreizkonus liegenden Endbereichen geschlitzte Ausführung des Befestigungsmittels.The implementation of the invention is not limited to the example described, but rather Also possible in variations that are within the scope of professional action. In particular, a modified shape of the components, especially the Fastening elements or the engagement clips of the adjusting sleeve, as possible as a one-piece and only in the end areas lying above the expansion cone slotted version of the fastener.

Eine geeignet strukturierte, insbesondere axial und/oder tangential verlaufende Ausnehmungen aufweisende Ausführung des dem Stiel zugewandten Endes des Innenteils gewährleistet in vorteilhafter Weise eine einfache und gleichwohl sichere Verbindung zwischen dem Innenteil und dem Stiel, beispielsweise durch eine Preßpassung oder durch Vergießen.A suitably structured one, in particular one running axially and / or tangentially Recessing version of the end of the inner part facing the handle advantageously ensures a simple and nevertheless secure connection between the inner part and the stem, for example by an interference fit or by Shed.

BezugszeichenlisteReference list

11
BefestigungsvorrichtungFastening device
33rd
Aluminiumrohr-StielAluminum tube stem
55
Innenteilinner part
5a5a
EndbereichEnd area
5b5b
erster zylindrischer Abschnittfirst cylindrical section
5c5c
zweiter zylindrischer Abschnittsecond cylindrical section
5d5d
StirnflächeFace
7.1, 7.27.1, 7.2
BefestigungselementeFasteners
7.1a, 7.2a7.1a, 7.2a
EndabschnittEnd section
7.1b, 7.2b7.1b, 7.2b
ringförmige Nutannular groove
7.1c, 7.2c7.1c, 7.2c
Zylindersegment-AbschnittCylinder segment section
7.1d, 7.2d7.1d, 7.2d
EingriffsabschnittEngaging section
7.1e, 7.2e7.1e, 7.2e
AusnehmungRecess
7.1f, 7.2f7.1f, 7.2f
Stirnfläche Face
99
Verstellhülse (Außenteil)Adjustment sleeve (outer part)
9a9a
MittenabschnittMiddle section
1111
Schlitzslot
1313
AußengewindeExternal thread
15, 2915, 29
WasserablaufrinneWater drainage channel
1717th
Spreizkonus (Kegelstumpfabschnitt)Expansion cone (truncated cone section)
1919th
GummiringRubber ring
2121
EingriffspangenEngagement clips
2323
HülsenabschnittSleeve section
23a23a
EndbereichEnd area
2525th
Innengewindeinner thread
2727
RingspaltAnnular gap

Claims (10)

Befestigungsvorrichtung (1) zur Anbringung eines Stiels (3) an einem Werkzeug, insbesondere Reinigungs- oder Förderwerkzeug, mit einem im wesentlichen zylindrischen Innenteil (5) mit einem ersten Ende (5a) zur starren Verbindung mit dem Stiel, einem zweiten Ende, welches einen Spreizkonus (17) trägt, zur lösbaren Verbindung mit dem Werkzeug und einem in einem Zwischenbereich vorgesehenen Außengewinde (13), einem im wesentlichen den gesamten Spreizkonus (17) umgreifenden, gegenüber dem Innenteil (5) axial verschieblichen und hierbei durch den Spreizkonus verformbaren Befestigungsmittel (7.1, 7.2) und einer in das Befestigungsmittel (7.1, 7.2) eingreifenden, das Innenteil (5) umgebenden Verstellhülse (9) mit einem im Eingriff mit dem Außengewinde (13) des Innenteils stehenden Innengewinde (25) zur Umsetzung einer Drehbewegung der Verstellhüllse in eine axiale Verschiebung des Befestigungsmittels, dadurch gekennzeichnet, daß
die Verstellhülse (9) an ihrem stielseitigen Ende einen gewindefreien Abdeckabschnitt (23a) aufweist, welcher derart bemessen ist, daß zwischen seinem Innenumfang und dem Außenumfang des Innenteils (5) ein Ringspalt (27) gebildet ist, der das Aufschieben von rohrförmigen Stielen (13) mit unterschiedlichen gebräuchlichen Wandstärken erlaubt, und
daß dem Ringspalt Wasserablaufkanäle- oder öffnungen (15, 29) zugeordnet sind.Fastening device (1) for attaching a handle (3) to a tool, in particular a cleaning or conveying tool an essentially cylindrical inner part (5) with a first end (5a) for rigid connection to the handle, a second end which carries an expansion cone (17) for releasable connection to the tool and an external thread (13) provided in an intermediate area , a fastening means (7.1, 7.2) encompassing essentially the entire expansion cone (17), axially displaceable relative to the inner part (5) and thereby deformable by the expansion cone an adjusting sleeve (9) engaging in the fastening means (7.1, 7.2) and surrounding the inner part (5) with an internal thread (25) in engagement with the external thread (13) of the inner part for converting a rotary movement of the adjusting sleeve into an axial displacement of the fastening means , characterized in that
the adjusting sleeve (9) has a thread-free cover section (23a) at its handle-side end, which is dimensioned in such a way that an annular gap (27) is formed between its inner circumference and the outer circumference of the inner part (5), which slides on tubular stems (13 ) with different wall thicknesses allowed, and
that water drainage channels or openings (15, 29) are assigned to the annular gap. Befestigungsvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,daß
die Wasserablaufkanäle im wesentlichen axial verlaufende Wasserablaufrinnen (15, 29) im Außengewinde (13) des Innenteils (5) und/oder in der Verstellhülse (9) umfassen.Fastening device according to claim 1,
characterized in that
the water drainage channels comprise essentially axially extending water drainage channels (15, 29) in the external thread (13) of the inner part (5) and / or in the adjusting sleeve (9). Befestigungsvorrichtung nach Anspruch 2,
dadurch gekennzeichnet,daß
drei oder mehr, insbesondere sechs, Wasserablaufrinnen (15, 29) vorgesehen sind.Fastening device according to claim 2,
characterized in that
three or more, in particular six, water drainage channels (15, 29) are provided. Befestigungsvorrichtung nach dem Oberbegriff des Anspruches 1 oder nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,daß
die Länge des Innen- und Außengewindes (13, 25) im Bereich zwischen dem 0,5-fachen und dem 1,2-fachen Gewin-dedurchmesser liegt.Fastening device according to the preamble of claim 1 or according to one of the preceding claims,
characterized in that
the length of the internal and external thread (13, 25) is in the range between 0.5 times and 1.2 times the thread diameter. Befestigungsvorrichtung nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,daß
der gewindefreie Abdeckabschnitt (23a) mindestens die halbe Länge des Innen- und Außengewindeabschnitts (13, 25) aufweist.Fastening device according to one of the preceding claims,
characterized in that
the thread-free cover section (23a) has at least half the length of the internal and external thread section (13, 25). Befestigungsvorrichtung nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,daß
die Breite des Ringspaltes (27) mindestens 10 %, bevorzugt zwischen 15 und 30 %, des Radius des Innenteils (5) beträgt.Fastening device according to one of the preceding claims,
characterized in that
the width of the annular gap (27) is at least 10%, preferably between 15 and 30%, of the radius of the inner part (5). Befestigungsvorrichtung nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,daß
das Innenteil (5), insbesondere im Bereich seines Außengewindes (13), im wesentlichen aus Vollmaterial besteht, wobei das erste Ende (5a) zum erleichterten Aufschieben des rohrförmigen Stieles (3) einen Schlitz (11) und/oder eine zentrale Ausnehmung aufweist.Fastening device according to one of the preceding claims,
characterized in that
the inner part (5), in particular in the area of its external thread (13), consists essentially of solid material, the first end (5a) having a slot (11) and / or a central recess to make it easier to slide on the tubular stem (3). Befestigungsvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,daß
das erste Ende (5a) des Innenteils (5) axial und/oder tangential verlaufende Ausnehmungen, insbesondere auf seiner Außenoberfläche, zum erleichterten Aufschieben oder Angießen des rohrförmigen Stieles (3) aufweist.Fastening device according to one of the preceding claims,
characterized in that
the first end (5a) of the inner part (5) has axially and / or tangentially extending recesses, in particular on its outer surface, for easier sliding on or casting on of the tubular stem (3). Befestigungsvorrichtung nach einem der vorangehenden Ansprüche,
gekennzeichnet durch
die Ausführung aus einem gegenüber schwachen Säuren und Basen im wesentlichen resistenten Kunststoff.Fastening device according to one of the preceding claims,
marked by
the design of a plastic which is essentially resistant to weak acids and bases. Stiel (3) mit einer Befestigungsvorrichtung (1) nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,daß
der Stiel mit der Befestigungsvorrichtung starr verbunden, insbesondere vergossen, verklebt oder verschweißt, ist.Handle (3) with a fastening device (1) according to one of the preceding claims,
characterized in that
the handle is rigidly connected to the fastening device, in particular cast, glued or welded.
EP00101844A 2000-01-31 2000-01-31 Device for fastening a handle to a tool Expired - Lifetime EP1127661B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES00101844T ES2195810T3 (en) 2000-01-31 2000-01-31 FIXING DEVICE FOR THE ASSEMBLY OF A HANDLE ON A TOOL.
EP00101844A EP1127661B1 (en) 2000-01-31 2000-01-31 Device for fastening a handle to a tool
AT00101844T ATE235993T1 (en) 2000-01-31 2000-01-31 FASTENING DEVICE FOR ATTACHING A HANDLE TO A TOOL
DE50001605T DE50001605D1 (en) 2000-01-31 2000-01-31 Fastening device for attaching a handle to a tool
US09/769,698 US6461075B2 (en) 2000-01-31 2001-01-25 Device for securing a handle on a tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00101844A EP1127661B1 (en) 2000-01-31 2000-01-31 Device for fastening a handle to a tool

Publications (2)

Publication Number Publication Date
EP1127661A1 true EP1127661A1 (en) 2001-08-29
EP1127661B1 EP1127661B1 (en) 2003-04-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00101844A Expired - Lifetime EP1127661B1 (en) 2000-01-31 2000-01-31 Device for fastening a handle to a tool

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Country Link
US (1) US6461075B2 (en)
EP (1) EP1127661B1 (en)
AT (1) ATE235993T1 (en)
DE (1) DE50001605D1 (en)
ES (1) ES2195810T3 (en)

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US7549195B2 (en) * 2005-11-10 2009-06-23 Unger Marketing International, Llc Locking system for connecting handles and implements
US8800113B1 (en) * 2013-03-15 2014-08-12 Blackstone Medical, Inc. Rigid modular connector
US10531863B2 (en) * 2015-01-08 2020-01-14 Smith & Nephew, Inc. Quick disconnect assembly and method of use
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Also Published As

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US20010016966A1 (en) 2001-08-30
US6461075B2 (en) 2002-10-08
ES2195810T3 (en) 2003-12-16
EP1127661B1 (en) 2003-04-02
ATE235993T1 (en) 2003-04-15
DE50001605D1 (en) 2003-05-08

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