EP0057916A2 - Device for attaching handles to utensils, in particular household utensils and garden tools - Google Patents

Device for attaching handles to utensils, in particular household utensils and garden tools Download PDF

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Publication number
EP0057916A2
EP0057916A2 EP82100805A EP82100805A EP0057916A2 EP 0057916 A2 EP0057916 A2 EP 0057916A2 EP 82100805 A EP82100805 A EP 82100805A EP 82100805 A EP82100805 A EP 82100805A EP 0057916 A2 EP0057916 A2 EP 0057916A2
Authority
EP
European Patent Office
Prior art keywords
handle
coupling
fastening device
sleeve
locking
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
EP82100805A
Other languages
German (de)
French (fr)
Other versions
EP0057916B1 (en
EP0057916A3 (en
Inventor
Walter Kolb
Helmut Weid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wolf Geraete GmbH
Original Assignee
Wolf Geraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE3104228A external-priority patent/DE3104228C2/en
Priority claimed from DE19813130703 external-priority patent/DE3130703C2/en
Application filed by Wolf Geraete GmbH filed Critical Wolf Geraete GmbH
Priority to AT82100805T priority Critical patent/ATE13833T1/en
Publication of EP0057916A2 publication Critical patent/EP0057916A2/en
Priority to DE19823246887 priority patent/DE3246887C2/en
Priority to AU10549/83A priority patent/AU560672B2/en
Publication of EP0057916A3 publication Critical patent/EP0057916A3/en
Application granted granted Critical
Publication of EP0057916B1 publication Critical patent/EP0057916B1/en
Expired 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
    • B25G3/18—Locking and securing devices comprising catches or pawls
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S16/00—Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
    • Y10S16/24—Handle fastening 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
    • Y10T403/60—Biased catch or latch
    • Y10T403/606—Leaf spring
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20636—Detents
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20732—Handles
    • Y10T74/20834—Hand wheels
    • Y10T74/20864—Handles

Definitions

  • the invention relates to a handle fastening device, in particular for household and garden equipment, in the form of a plug-in coupling, the coupling sleeve at the end of the handle and the coupling plug on the connector of the tool, with a locking device for positive axial locking of the coupling sleeve and coupling plug in the operating position, these Locking device can be released manually.
  • Such handle fastening devices which have become known in various embodiments, make it possible to use a large number of tools in connection with a single handle or a few handles, for example of different lengths. As a result, the costs can be reduced because a separate handle does not have to be purchased for each tool. There are also advantages with regard to the storage of the tools because they can be accommodated in a space-saving manner without a handle.
  • the invention has for its object to provide an improved connector device, in which the attachment and detachment of the tool on the handle is simplified, a tight rotation of the tool in the coupled state is guaranteed and the structure is simplified compared to conventional devices.
  • the invention makes it possible to release the lock with a simple push of a button if, according to a preferred embodiment of the invention, a release button which can be displaced radially in the handle is used as the release.
  • a release button which can be displaced radially in the handle is used as the release.
  • other handles could also be used, which are located, for example, at the other end of the handle and are connected to the bolt via tension members. Sliding or rotating sleeves can also be provided for this purpose.
  • the push button arrangement is characterized by its particular simplicity.
  • a leaf spring is used as the locking member, which engages directly in the locking hole, problems with regard to tilt-free guiding and the like are eliminated.
  • Another advantage of this design is that the functionality cannot be impaired by dirt that enters through the insertion hole of the coupling sleeve. This dirt can fall into the free space enclosed by the stem tube, and it is automatically pushed away from the points that are effective for locking and can later be easily removed by knocking.
  • a coupling sleeve 16 made of plastic is firmly inserted.
  • the outer profile of the coupling sleeve 16 is 12-edged according to the embodiment, so that after driving the sleeve into the Stem tube 10 gives a non-rotatable connection.
  • the insertion hole 24 of the coupling sleeve 16 has a rectangular cross section, which corresponds to the cross section of a coupling plug pin 18, which is firmly connected to the connector 20 of the tool, not shown in the drawing. In this way it becomes possible to push the two parts of the connector device into one another in two positions offset by 180 °.
  • the plug pin 18 has at its inner insert end a hole 61 which is rectangular or square in cross section.
  • a hole 61 which is rectangular or square in cross section.
  • an offset 62 of a leaf spring 64 falls, which is fixed at one end by screws 66 to a flat 68 of the coupling sleeve 16. This flattening merges into a bevel 70 which runs after the hole 61.
  • the leaf spring continues in an angular section 72, 74, the angular section 74 extending transversely to the axis.
  • This section 74 carries a push button 48 which projects outwards through an opening 76 in the stem and which is covered by a protective cap 78 made of elastic material which closes the opening 76.
  • the connector 20 consists of a grommet upper part 80 and a grommet lower part 82, which is surrounded by a sleeve at one end and are fixed on the coupling plug pin.
  • the tool shown only in the approach is designated 86.
  • the leaf spring 64 When the coupling plug pin 18 is inserted into the insertion hole 24, the leaf spring 64 is replaced by the conical or rounded end 88 of the plug pin 18 laterally lifted until the full insertion position is reached.
  • the spring automatically snaps into the hole 61 with its offset 62 and secures the plug connection.
  • the sleeve 84 which consists of elastic material, a resilient support of the connecting piece is achieved in the axial direction, so that manufacturing tolerances can be compensated and a play-free fit is always guaranteed.
  • the plug connection can be released simply in that the push button 48 is pressed in and the plug pin 18 is pulled out axially.
  • the exemplary embodiment according to FIG. 3 differs from the exemplary embodiment according to FIGS. 1 and 2 in that a sliding sleeve 90 is provided instead of the push button 48.
  • This sliding sleeve 90 which is displaceable on the stem tube 10, has a projection 94 with an inclined surface 96 which stands radially inward through a slot 92 in the stem.
  • a compression coil spring 98 is inserted into the stem, which is placed on pins 97 and 99, which protrude from the coupling sleeve 16 and the shoulder 94 on the end face.
  • the section 74 of the leaf spring 64 has a bend 73 directed obliquely to the axis, which is adapted to the inclined surface 96 of the extension 94.
  • the spring 64 with its offset 62 is lifted out of the hole 61 of the plug pin 18, so that the plug pin 18 with the connecting piece 20 and the tool can then be pulled out. After releasing the sliding sleeve, it returns this returns to the starting position shown in FIG. 3 under the force of the spring 98.
  • the spring is radially lifted out again via the rounded end 88 and the bent part falls into the hole as soon as the correct plug-in position is reached and the plug connection is locked in a form-fitting manner.
  • the exemplary embodiment according to FIGS. 4 to 9 corresponds in terms of the locking function to the exemplary embodiment according to FIGS. 1 and 2. It differs from this exemplary embodiment in that the leaf spring 64 is inserted into a slot 55 in the coupling sleeve 16 and is fixed therein by a rivet 57.
  • the push button 48 can be moved directly without a protective cap 78 in the recess of the tube or a guide hole 59 of the coupling sleeve 16.
  • the stem 10 which is circular in cross section, gradually changes into an oval or elliptical profile in the region of the connecting piece 20.
  • the tool 86 is connected to the coupling plug pin 18 via two flat bars 75 which are welded on the one hand to the tool 86 and on the other hand to the coupling plug pin 18.
  • the tool can have three round pins as a connection.
  • the plug pin 18 is supported within the two grommets 80 and 82 by longitudinal ribs 81.
  • the flat bars 75 are anchored with an outwardly directed offset 77 in the upper sleeve part 80 and in the lower sleeve part 82.
  • the sleeve 84 serves for axially resilient support of the connecting piece 20.
  • the plug pin 18 has incisions 26 in two opposite rectangular sides, which have a flat flank 28 in the section pointing towards the end of the stem and a steep flank 30 forming a latching lug on the other side.
  • the end of the pin is provided with a dome-shaped curvature 32.
  • the coupling sleeve 16 has a radial opening 34 which opens into the insert hole 24 and radially displaceably guides a bolt 36 which protrudes through a side wall of the insert hole and comes to rest behind the locking lug 30 when the coupling plug pin 18 is inserted and protects the plug pin against axial pulling out.
  • This bolt is firmly connected to an axially extending arm 38 which is radially movable in a recess 40 of the coupling sleeve 16 which adjoins the opening 34.
  • This arm 38 carries a radial pin 42 which is guided in a radial through bore 44 of the sleeve 16, which extends at an axial distance from the base of the insertion hole 24. In the part opposite the recess 40 the through hole 44 is widened outwards via a step 46.
  • the pin 42 carries a push button 48 projecting outward beyond the stem 10, which engages with an elastic bead 50 in an annular groove 52 of the pin 42.
  • the push button 48 is guided with its cylindrical outer flange 54 in the enlarged part of the through hole 44.
  • a compression coil spring 56 is arranged between the step 46 and the base of the push button, which tries to pull the pin 42 and thus the locking arm 38 and the locking bar 36 to the left into the locking position according to FIG. 2.
  • the dome-shaped curvature 32 being the bolt 36 which is connected to one of the flanks 28 corresponding ramp 58 is provided, lifts.
  • the latch 36 After the latch 36 has reached the steep flank 30 forming the latch, it engages in the latch under the action of the spring 56, and an axially and circumferentially positive locking is thus automatically achieved.
  • the end face of the coupling sleeve 16 takes in one Ring groove an elastic profile ring 60, which comes to rest against an end face 63 of the connector 20 and creates an axial tolerance compensation, at the same time creating a seal against the interior of the coupling sleeve.
  • the profile ring 60 corresponds to the sleeve 84 in the exemplary embodiment according to FIGS. 1 to 4.

Abstract

A device for fastening handles, that consists of a connecting bushing (16) and an insert (18) that are attached to both the implement (86) and to the handle (10). The insert (18), which has a rectangular cross-section, is locked into the insertion opening in the connecting bushing when a catch (62) on a leaf spring (64) engages a hole (61) in the insert. The resulting positive lock can be disengaged by a push-button (48) or sliding sleeve. The push-button (48) rests against the end (74) of the leaf spring (64) and can be used to displace the catch (62) on the leaf spring from the hole (61). An axially elastic sleeve (84) between the end of the handle and the connecting piece (20) compensates for tolerances. The circular handle merges gradually into an oval or ellipse toward the connecting piece (20).

Description

Die Erfindung bezieht sich auf eine Stielbefestigungsvorrichtung, insbesondere für Haus- und Gartengeräte, in Form einer Steckkupplung, deren Kupplungshülse am Stielende und deren Kupplungssteckzapfen am Anschlußstück des Werkzeugs festgelegt ist, mit einer Verriegelungsvorrichtung zur formschlüssigen axialen Verriegelung von Kupplungshülse und Kupplungssteckzapfen in Einsatzstellung, wobei diese Verriegelungsvorrichtung manuell lösbar ist.The invention relates to a handle fastening device, in particular for household and garden equipment, in the form of a plug-in coupling, the coupling sleeve at the end of the handle and the coupling plug on the connector of the tool, with a locking device for positive axial locking of the coupling sleeve and coupling plug in the operating position, these Locking device can be released manually.

Derartige Stielbefestigungsvorrichtungen, die in verschiedenen Ausführungsformen bekanntgeworden sind, schaffen die Möglichkeit in Verbindung mit einem einzigen Stiel oder einigen wenigen Stielen, beispielsweise unterschiedlicher Länge, eine Vielzahl von Werkzeugen zu benutzen. Hierdurch können die Kosten gesenkt werden, weil nicht für jedes Werkzeug ein eigener Stiel angeschafft werden muß. Auch ergeben sich Vorteile im Hinblick auf die Aufbewahrung der Werkzeuge, weil diese raumsparender ohne Stiel untergebracht werden können.Such handle fastening devices, which have become known in various embodiments, make it possible to use a large number of tools in connection with a single handle or a few handles, for example of different lengths. As a result, the costs can be reduced because a separate handle does not have to be purchased for each tool. There are also advantages with regard to the storage of the tools because they can be accommodated in a space-saving manner without a handle.

Der Erfindung liegt die Aufgabe zugrunde, eine verbesserte Steckverbindungsvorrichtung zu schaffen, bei der die Befestigung und das Lösen des Werkzeugs am Stiel vereinfacht ist, ein fester verdrehungsfreier Sitz des Werkzeugs im gekuppelten Zustand gewährleistet ist und die in ihrem Aufbau gegenüber herkömmlichen Vorrichtungen vereinfacht ist.The invention has for its object to provide an improved connector device, in which the attachment and detachment of the tool on the handle is simplified, a tight rotation of the tool in the coupled state is guaranteed and the structure is simplified compared to conventional devices.

Gelöst wird die gestellte Aufgabe durch die im Kennzeichnungsteil des Patentanspruchs 1 angegebenen Merkmale.The problem is solved by the features specified in the characterizing part of claim 1.

Durch die Erfindung wird es möglich, mit einfachem Tastendruck die Verriegelung aufzuheben, wenn gemäß einer bevorzugten Ausführung der Erfindung als Auslöser eine radial im Stiel verschiebbare Auslösetaste benutzt wird. Stattdessen könnten auch andere Handhaben benutzt werden, die beispielsweise am anderen Stielende befindlich sind und über Zugglieder mit dem Riegel in Verbindung stehen. Es können ferner auch Schiebe- oder Drehhülsen für diesen Zweck vorgesehen werden. Die Drucktastenanordnung zeichnet sich jedoch durch ihre besondere Einfachheit aus.The invention makes it possible to release the lock with a simple push of a button if, according to a preferred embodiment of the invention, a release button which can be displaced radially in the handle is used as the release. Instead, other handles could also be used, which are located, for example, at the other end of the handle and are connected to the bolt via tension members. Sliding or rotating sleeves can also be provided for this purpose. However, the push button arrangement is characterized by its particular simplicity.

Wenn gemäß einem Ausführungsbeispiel der Erfindung als Rastglied eine Blattfeder benutzt wird, die unmittelbar in das Verriegelungsloch eingreift, werden Probleme hinsichtlich einem verkantungsfreien Führen und dergleichen ausgeschaltet.If, according to an embodiment of the invention, a leaf spring is used as the locking member, which engages directly in the locking hole, problems with regard to tilt-free guiding and the like are eliminated.

Ein weiterer Vorteil dieser Ausführung besteht darin, daß die Funktionstüchtigkeit auch nicht durch Schmutz beeinträchtigt werden kann, der durch das Einsatzloch der Kupplungshülse eintritt. Dieser Schmutz kann in den vom Stielrohr umschlossenen freien Raum fallen, und er wird automatisch von den für die Verriegelung wirksamen Stellen weggeschoben und kann später leicht durch Klopfen entfernt werden.Another advantage of this design is that the functionality cannot be impaired by dirt that enters through the insertion hole of the coupling sleeve. This dirt can fall into the free space enclosed by the stem tube, and it is automatically pushed away from the points that are effective for locking and can later be easily removed by knocking.

Weitere zweckmäßige Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further expedient refinements of the invention result from the subclaims.

Nachstehend werden Ausführungsbeispiele der Erfindung anhand der Zeichnung beschrieben. In der Zeichnung zeigen

  • Figur 1 einen Längsschnitt einer erfindungsgemäß ausgebildeten Stielbefestigungsvorrichtung,
  • Figur 2 einen Schnitt nach der Linie II-II gemäß Figur 1,
  • Figur 3 einen Längsschnitt einer weiteren Ausgestaltung einer Stielbefestigungsvorrichtung,
  • Figur 4 einen Längsschnitt einer abgewandelten Ausführungsform,
  • Figur 5 bis 9 Querschnittsansichten, geschnitten nach den Linien V-V bis IX-IX gemäß Figur 4, und
  • Figur 10 eine Schnittansicht einer weiteren Ausführungsform.
Exemplary embodiments of the invention are described below with reference to the drawing. Show in the drawing
  • FIG. 1 shows a longitudinal section of a handle fastening device designed according to the invention,
  • FIG. 2 shows a section along the line II-II according to FIG. 1,
  • FIG. 3 shows a longitudinal section of a further embodiment of a handle fastening device,
  • FIG. 4 shows a longitudinal section of a modified embodiment,
  • Figure 5 to 9 cross-sectional views, sectioned along lines VV to IX-IX of Figure 4, and
  • Figure 10 is a sectional view of another embodiment.

Im folgenden wird zunächst auf das Ausführungsbeispiel nach Figur 1 und 2 Bezug genommen. In den rohrförmigen Stiel 10 ist eine Kupplungshülse 16 aus Kunststoff unverrückbar fest eingesetzt. Das Außenprofil der Kupplungshülse 16 ist nach dem Ausführungsbeispiel 12-kantig gestaltet, so daß sich nach dem Eintreiben der Hülse in das Stielrohr 10 eine drehfeste Verbindung ergibt. Das Einsatzloch 24 der Kupplungshülse 16 weist im Querschnitt ein Rechteckprofil auf, das dem Querschnitt eines Kupplungssteckzapfens 18 entspricht, der mit dem Anschlußstück 20 des in der Zeichnung nicht dargestellten Werkzeugs fest verbunden ist. Auf diese Weise wird es möglich die beiden Teile der Steckverbindungsvorrichtung in zwei um 180° versetzten Stellungen ineinander zu schieben. Der Steckzapfen 18 weist an seinem inneren Einsatzende ein Loch 61 auf, welches im Querschnitt rechteckig bzw. quadratisch ausgebildet ist. In dieses Loch 61 fällt in Einsatzstellung eine Abkröpfung 62 einer Blattfeder 64 ein, die mit einem Ende durch Schrauben 66 an einer Abflachung 68 der Kupplungshülse 16 festgelegt ist. Diese Abflachung geht in eine Abschrägung 70 über, die nach dem Loch 61 hin verläuft. Hinter der Abkröpfung setzt sich die Blattfeder in einem Winkelabschnitt 72,74 fort, wobei der Winkelabschnitt 74 quer zur Achse verläuft. Dieser Abschnitt 74 trägt einen Druckknopf 48, der durch eine Öffnung 76 des Stiels nach außen vorsteht, und der durch eine Schutzkappe 78 aus elastischem Material, die die Öffnung 76 verschließt, abgedeckt ist.In the following, reference is first made to the exemplary embodiment according to FIGS. 1 and 2. In the tubular stem 10, a coupling sleeve 16 made of plastic is firmly inserted. The outer profile of the coupling sleeve 16 is 12-edged according to the embodiment, so that after driving the sleeve into the Stem tube 10 gives a non-rotatable connection. The insertion hole 24 of the coupling sleeve 16 has a rectangular cross section, which corresponds to the cross section of a coupling plug pin 18, which is firmly connected to the connector 20 of the tool, not shown in the drawing. In this way it becomes possible to push the two parts of the connector device into one another in two positions offset by 180 °. The plug pin 18 has at its inner insert end a hole 61 which is rectangular or square in cross section. In this hole 61, in the operating position, an offset 62 of a leaf spring 64 falls, which is fixed at one end by screws 66 to a flat 68 of the coupling sleeve 16. This flattening merges into a bevel 70 which runs after the hole 61. After the offset, the leaf spring continues in an angular section 72, 74, the angular section 74 extending transversely to the axis. This section 74 carries a push button 48 which projects outwards through an opening 76 in the stem and which is covered by a protective cap 78 made of elastic material which closes the opening 76.

Das Anschlußstück 20 besteht aus einem Tüllenoberteil 80 und einem Tüllenunterteil 82, die von einer Manschette an einem Ende umfaßt und auf dem Kupplungssteckzapfen festgelegt sind. Das nur im Ansatz dargestellte Werkzeug ist mit 86 bezeichnet.The connector 20 consists of a grommet upper part 80 and a grommet lower part 82, which is surrounded by a sleeve at one end and are fixed on the coupling plug pin. The tool shown only in the approach is designated 86.

Beim Einschieben des Kupplungssteckzapfens 18 in das Einsatzloch 24 wird die Blattfeder 64 durch das konisch ausgebildete oder abgerundete Ende 88 des Steckzapfens 18 seitlich ausgehoben, bis die volle Einschubstellung erreicht ist. In dieser rastet die Feder mit ihrer Abkröpfung 62 selbsttätig in das Loch 61 ein und sichert die Steckverbindung. Durch die Manschette 84, die aus elastischem Material besteht, wird eine federnde Abstützung des Anschlußstückes in Achsrichtung erreicht, so daß Fertigungstoleranzen ausgeglichen werden können und immer ein spielfreier Sitz gewährleistet ist. Die Steckverbindung kann einfach dadurch gelöst werden, daß der Druckknopf 48 eingedrückt und der Steckzapfen 18 axial herausgezogen wird.When the coupling plug pin 18 is inserted into the insertion hole 24, the leaf spring 64 is replaced by the conical or rounded end 88 of the plug pin 18 laterally lifted until the full insertion position is reached. The spring automatically snaps into the hole 61 with its offset 62 and secures the plug connection. By the sleeve 84, which consists of elastic material, a resilient support of the connecting piece is achieved in the axial direction, so that manufacturing tolerances can be compensated and a play-free fit is always guaranteed. The plug connection can be released simply in that the push button 48 is pressed in and the plug pin 18 is pulled out axially.

Das Ausführungsbeispiel nach Figur 3 unterscheidet sich von dem Ausführungsbeispiel nach Figur 1 und 2 dadurch, daß anstelle des Druckknopfes 48 eine Schiebehülse 90 vorgesehen ist. Diese Schiebehülse 90, die auf dem Stielrohr 10 verschiebbar ist, weist einen radial durch einen Schlitz 92 des Stiels nach innen stehenden Ansatz 94 mit Schrägfläche 96 auf. Achsparallel ist eine Druckschraubenfeder 98 in den Stiel eingesetzt, welche auf Zapfen 97 und 99 aufgesetzt ist, die von der Kupplungshülse 16 bzw. dem Ansatz 94 stirnseitig vorstehen. Der Abschnitt 74 der Blattfeder 64 weist eine schräg zur Achse gerichtete Abbiegung 73 auf, die der Schrägfläche 96 des Ansatzes 94 angepaßt ist.The exemplary embodiment according to FIG. 3 differs from the exemplary embodiment according to FIGS. 1 and 2 in that a sliding sleeve 90 is provided instead of the push button 48. This sliding sleeve 90, which is displaceable on the stem tube 10, has a projection 94 with an inclined surface 96 which stands radially inward through a slot 92 in the stem. Axially parallel, a compression coil spring 98 is inserted into the stem, which is placed on pins 97 and 99, which protrude from the coupling sleeve 16 and the shoulder 94 on the end face. The section 74 of the leaf spring 64 has a bend 73 directed obliquely to the axis, which is adapted to the inclined surface 96 of the extension 94.

Durch Verschiebung der Hülse 90 gegen die Kraft der Feder 98 wird die Feder 64 mit ihrer Abkröpfung 62 aus dem Loch 61 des Steckzapfens 18 ausgehoben, so daß sich dann der Steckzapfen 18 mit dem Anschlußstück 20 und dem Werkzeug herausziehen läßt. Nach Loslassen der Schiebehülse kehrt diese unter der Kraft der Feder 98 in ihre in Figur 3 dargestellte Ausgangslage zurück. Beim Einschieben des Kupplungssteckzapfens wird über das abgerundete Ende 88 die Feder wieder radial ausgehoben und die Abkröpfung fällt in das Loch ein, sobald die richtige Einschubstellung erreicht ist und es wird die Steckverbindung formschlüssig verriegelt.By displacing the sleeve 90 against the force of the spring 98, the spring 64 with its offset 62 is lifted out of the hole 61 of the plug pin 18, so that the plug pin 18 with the connecting piece 20 and the tool can then be pulled out. After releasing the sliding sleeve, it returns this returns to the starting position shown in FIG. 3 under the force of the spring 98. When the coupling plug-in pin is pushed in, the spring is radially lifted out again via the rounded end 88 and the bent part falls into the hole as soon as the correct plug-in position is reached and the plug connection is locked in a form-fitting manner.

Das Ausführungsbeispiel gemäß Figur 4 bis 9 entspricht hinsichtlich der Verriegelungsfunktion dem Ausführungsbeispiel nach Figur 1 und 2. Es unterscheidet sich von diesem Ausführungsbeispiel dadurch, daß die Blattfeder 64 in einen Schlitz 55 der Kupplungshülse 16 eingesetzt und hierin durch eine Niete 57 fixiert ist. Der Druckknopf 48 ist direkt ohne Schutzkappe 78 in der Ausnehmung des Rohres bzw. einem Führungsloch 59 der Kupplungshülse 16 verschiebbar.The exemplary embodiment according to FIGS. 4 to 9 corresponds in terms of the locking function to the exemplary embodiment according to FIGS. 1 and 2. It differs from this exemplary embodiment in that the leaf spring 64 is inserted into a slot 55 in the coupling sleeve 16 and is fixed therein by a rivet 57. The push button 48 can be moved directly without a protective cap 78 in the recess of the tube or a guide hole 59 of the coupling sleeve 16.

Wie aus den Figuren 5 bis 9 ersichtlich, geht der im Querschnitt kreisrunde Stiel 10 allmählich in ein ovales bzw. elliptisches Profil im Bereich des Anschlußstückes 20 über. Das Werkzeug 86 ist mit dem Kupplungssteckzapfen 18 über zwei Flacheisen 75 verbunden, die einerseits mit dem Werkzeug 86 und andererseits mit dem Kupplungssteckzapfen 18 verschweißt sind. Dabei kann wie aus Figur 5 und 6 ersichtlich, das Werkzeug als Anschluß drei Rundzapfen aufweisen. Wie aus Figur 8 ersichtlich, ist der Steckzapfen 18 innerhalb der beiden Tüllen 80 und 82 durch längs verlaufende Rippen 81 abgestützt.As can be seen from FIGS. 5 to 9, the stem 10, which is circular in cross section, gradually changes into an oval or elliptical profile in the region of the connecting piece 20. The tool 86 is connected to the coupling plug pin 18 via two flat bars 75 which are welded on the one hand to the tool 86 and on the other hand to the coupling plug pin 18. Here, as can be seen from FIGS. 5 and 6, the tool can have three round pins as a connection. As can be seen from FIG. 8, the plug pin 18 is supported within the two grommets 80 and 82 by longitudinal ribs 81.

Die Flacheisen 75 sind mit einer nach außen gerichteten Abkröpfung 77 im Tüllenoberteil 80 bzw. im Tüllenunterteil 82 verankert. Auch bei diesem Ausführungsbeispiel dient die Manschette 84 zur axial federnden Abstützung des Anschlußstückes 20.The flat bars 75 are anchored with an outwardly directed offset 77 in the upper sleeve part 80 and in the lower sleeve part 82. In this exemplary embodiment as well, the sleeve 84 serves for axially resilient support of the connecting piece 20.

Im folgenden wird auf das Ausführungsbeispiel gemäß Figur 10 Bezug genommen, welches hinsichtlich der Funktion den vorher beschriebenen Ausführungsbeispielen entspricht. Gleiche Teile sind mit entsprechenden Bezugszeichen versehen und werden im einzelnen nicht nochmals erläutert. Bei diesem Ausführungsbeispiel nach Figur 10 weist der Steckzapfen 18 in zwei gegenüberliegenden Rechteckseiten Einschnitte 26 auf, die eine flache Flanke 28 in dem nach dem Stielende weisenden Abschnitt und eine steile, eine Rastnase bildende Flanke 30 auf der anderen Seite besitzen. Das Ende des Zapfens ist mit einer kuppelförmigen Wölbung 32 versehen.In the following, reference is made to the exemplary embodiment according to FIG. 10, which corresponds in function to the previously described exemplary embodiments. The same parts are provided with corresponding reference numerals and are not explained again in detail. In this exemplary embodiment according to FIG. 10, the plug pin 18 has incisions 26 in two opposite rectangular sides, which have a flat flank 28 in the section pointing towards the end of the stem and a steep flank 30 forming a latching lug on the other side. The end of the pin is provided with a dome-shaped curvature 32.

Die Kupplungshülse 16 weist einen radialen Durchbruch 34 auf, der im Einsatzloch 24 mündet und radial verschieblich einen Riegel 36 führt, der durch eine Seitenwand des Einsatzloches vorsteht und bei eingestecktem Kupplungssteckzapfen 18 hinter der Rastnase 30 zu liegen kommt und den Steckzapfen gegen axiales Herausziehen schützt. Dieser Riegel ist mit einem sich axial erstreckenden Arm 38 fest verbunden, der in einer an den Durchbruch 34 anschließenden Ausnehmung 40 der Kupplungshülse 16 radial beweglich ist. Dieser Arm 38 trägt einen radialen Zapfen 42, der in einer radialen Durchgangsbohrung 44 der Hülse 16 geführt ist, die in axialem Abstand zu dem Grund des Einsatzloches 24 verläuft. In dem der Ausnehmung 40 gegenüberliegenden Teil ist die Durchgangsbohrung 44 über eine Stufe 46 nach außen erweitert.The coupling sleeve 16 has a radial opening 34 which opens into the insert hole 24 and radially displaceably guides a bolt 36 which protrudes through a side wall of the insert hole and comes to rest behind the locking lug 30 when the coupling plug pin 18 is inserted and protects the plug pin against axial pulling out. This bolt is firmly connected to an axially extending arm 38 which is radially movable in a recess 40 of the coupling sleeve 16 which adjoins the opening 34. This arm 38 carries a radial pin 42 which is guided in a radial through bore 44 of the sleeve 16, which extends at an axial distance from the base of the insertion hole 24. In the part opposite the recess 40 the through hole 44 is widened outwards via a step 46.

Der Zapfen 42 trägt einen nach außen über den Stiel 10 vorstehenden Druckknopf 48, welcher mit einer Federwulst 50 in eine Ringnut 52 des Zapfens 42 eingreift. Der Druckknopf 48 ist mit seinem zylindrischen Außenflansch 54 in dem erweiterten Teil der Durchgangsbohrung 44 geführt. Zwischen der Stufe 46 und dem Grund des Druckknopfes ist eine Druckschraubenfeder 56 angeordnet, die den Zapfen 42 und damit den Riegelarm 38 und den Riegel 36 gemäß Figur 2 nach links in die Verriegelungsstellung zu ziehen trachtet. Durch Drücken auf den Druckknopf 48 kann die Verriegelung aufgehoben werden und nachdem der Riegel 36 von der Rastnase 30 des Einsteckzapfens 18 freikommt, kann das Anschlußstück 20 axial aus der Kupplungshülse herausgezogen werden.The pin 42 carries a push button 48 projecting outward beyond the stem 10, which engages with an elastic bead 50 in an annular groove 52 of the pin 42. The push button 48 is guided with its cylindrical outer flange 54 in the enlarged part of the through hole 44. A compression coil spring 56 is arranged between the step 46 and the base of the push button, which tries to pull the pin 42 and thus the locking arm 38 and the locking bar 36 to the left into the locking position according to FIG. 2. By pressing the push button 48, the lock can be released and after the bolt 36 is released from the locking lug 30 of the insertion pin 18, the connector 20 can be pulled axially out of the coupling sleeve.

Um das gleiche Werkzeug oder ein anderes Werkzeug, welches mit einem gleichen Anschlußstück ausgerüstet ist mit dem Stiel 10 zu verbinden, genügt es den Kupplungssteckzapfen 18 in das Einsatzloch 24 fest einzustecken, wobei die kuppelförmige Wölbung 32 den Riegel 36, der mit einer der Flanke 28 entsprechenden Auflaufflanke 58 versehen ist, aushebt. Nachdem der Riegel 36 an der die Rastnase bildenden steilen Flanke 30 angelangt ist, fällt er unter der Wirkung der Feder 56 in die Rast ein, und es wird damit automatisch eine axial und in Umfangsrichtung formschlüssig wirkende Verriegelung erreicht.In order to connect the same tool or another tool which is equipped with the same connecting piece to the handle 10, it is sufficient to firmly insert the coupling plug pin 18 into the insertion hole 24, the dome-shaped curvature 32 being the bolt 36 which is connected to one of the flanks 28 corresponding ramp 58 is provided, lifts. After the latch 36 has reached the steep flank 30 forming the latch, it engages in the latch under the action of the spring 56, and an axially and circumferentially positive locking is thus automatically achieved.

Die Stirnringfläche der Kupplungshülse 16 nimmt in einer Ringnut einen elastischen Profilring 60 auf, der gegen eine Stirnringfläche 63 des Anschlußstückes 20 zu liegen kommt und einen axialen Toleranzausgleich schafft, wobei gleichzeitig eine Abdichtung gegenüber dem Inneren der Kupplungshülse geschaffen wird. Insofern entspricht der Profilring 60 der Manschette 84 bei dem Ausführungsbeispiel nach Figur 1 bis 4.The end face of the coupling sleeve 16 takes in one Ring groove an elastic profile ring 60, which comes to rest against an end face 63 of the connector 20 and creates an axial tolerance compensation, at the same time creating a seal against the interior of the coupling sleeve. In this respect, the profile ring 60 corresponds to the sleeve 84 in the exemplary embodiment according to FIGS. 1 to 4.

Claims (10)

1. Stilebefestigungsvorrichtung, insbesondere für Haus- und Gartengeräte in Form einer Steckkupplung, deren Kupplungsgehäuse am Stielende und deren Kupplungssteckzapfen am Anschlußstück des Werkzeugs festgelegt ist, mit einer Verriegelungsvorrichtung zur formschlüssigen axialen Verriegelung von Kupplungshülse und Kupplungssteckzapfen in Einsatzstellung, wobei diese Verriegelungsvorrichtung manuell lösbar ist, dadurch gekennzeichnet, daß die Verriegelungsvorrichtung (36, 30) automatisch unter der Wirkung einer Feder (56) einrastet sobald der Kupplungssteckzapfen (18) eine vorbestimmte Einsatzendstellung überschreitet, und daß diese Verriegelung durch eine gegen die Feder (56) wirkende Auslösekraft entsperrbar ist.1. Style fastening device, in particular for household and garden tools in the form of a plug-in coupling, the coupling housing of which is fixed at the handle end and the coupling plug pin of which is attached to the tool, with a locking device for the form-fitting axial locking of the coupling sleeve and coupling plug pin in the operating position, this locking device being manually releasable, characterized in that the locking device (36, 30) automatically engages under the action of a spring (56) as soon as the coupling plug pin (18) exceeds a predetermined end-of-use position, and that this locking can be released by a release force acting against the spring (56). 2. Stielbefestigungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Steckzapfen (18) ein querverlaufendes Loch (61) aufweist, in das in Einschubstellung eine Abkröpfung (62) einer an der Kupplungshülse befestigten Blattfeder (64) einfällt, die über eine Handhabe (48; 90) aushebbar ist (Fig. 1 bis 4), und daß die Handhabe aus einem Druckknopf (48) besteht, der auf dem Ende der Blattfeder (74) festgelegt ist.2. handle fastening device according to claim 1, characterized in that the plug-in pin (18) has a transverse hole (61) into which in the inserted position an offset (62) of a leaf spring (64) attached to the coupling sleeve falls, which has a handle (48 ; 90) can be lifted (Fig. 1 to 4), and that the handle consists of a push button (48) which is fixed on the end of the leaf spring (74). 3. Stielbefestigungsvorrichtung nach einem der Ansprüche 1 und 2,
dadurch gekennzeichnet, daß der Kupplungssteckzapfen (18) und sein Einsatzloch (24) in der Kupplungshülse im Querschnitt rechteckig ausgebildet sind und daß das Einsatzloch (61), welches-die Flanschseiten durchsetzt, rechteckig, insbesondere quadratisch ausgebildet ist und daß der Kupplungssteckzapfen (18) ein keilförmig abgerundetes Ende (88) aufweist.3. handle fastening device according to one of claims 1 and 2,
characterized in that the coupling plug pin (18) and its insert hole (24) in the coupling sleeve are rectangular in cross section and in that the insert hole (61) which penetrates the flange sides is rectangular, in particular square, and in that the coupling plug pin (18) has a wedge-shaped rounded end (88). 4. Stielbefestigungsvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Kupplungssteckzapfen ein Anschlußstück (20) zum Übergang auf das Werkzeug trägt, welches aus zwei ineinandergreifenden Tüllen (80 und 82) besteht, die durch eine Manschette (84) zusammengehalten und miteinander und mit dem Steckzapfen (18) vorzugsweise durch Verklebung verbunden sind.4. handle fastening device according to claim 2, characterized in that the coupling plug carries a connector (20) for transition to the tool, which consists of two interlocking spouts (80 and 82) which are held together by a sleeve (84) and with each other and with the Plug pins (18) are preferably connected by gluing. 5. Stielbefestigungsvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Manschetten (84) bzw. ein über die Stirnringfläche der Kupplungshülse vorstehender Profilring (60) in Achsrichtung federnd ausgebildet ist, um eine spielfreie Einrastung auch bei Fertigungstoleranzen zu gewährleisten.5. handle fastening device according to claim 4, characterized in that the sleeves (84) or a projecting over the end face of the coupling sleeve profile ring (60) is resilient in the axial direction in order to ensure a play-free engagement even with manufacturing tolerances. 6. Stielbefestigungsvorrichtung nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß das Anschlußstück (20) und die Kupplungshülse (16) im Querschnitt oval oder elliptisch ausgebildet sind (Fig. 4 bis 9).6. handle fastening device according to claim 1 to 5, characterized in that the connecting piece (20) and the coupling sleeve (16) are oval or elliptical in cross section (Fig. 4 to 9). 7. Stielbefestigungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Verriegelungsvorrichtung einen radial in einem Durchbruch (34) der Kupplungshülse (16) geführten Riegel (36) aufweist, der mit einer Rastnase (30) des Kupplungssteckzapfens (18) zusammenwirkt, die die steile Flanke eines Einschnitts bildet, dessen flache Flanke (28) nach dem Stielende weist und einer Auflaufflanke (58) des Riegels (36) angepaßt ist. (Fig. 10)7. handle fastening device according to claim 1, characterized in that the locking device has a radially in an opening (34) of the coupling sleeve (16) guided bolt (36) which cooperates with a locking lug (30) of the coupling plug pin (18) which the steep Forms the flank of an incision, the flat flank (28) of which points towards the end of the handle and is adapted to a run-up flank (58) of the bolt (36). (Fig. 10) 8. Stilebefestigungsvorrichtung nach den Ansprüchen 1 bis 7, dadurch gekennzeichnet, daß innerhalb des von einer Tülle (80,82) gebildeten Anschlußstücks (20) der Steckzapfen (18) mit dem Werkzeug (86) über zwei überlappende Flacheisen (75) verschweißt sind, die mit einer Abkröpfung (77) formschlüssig in der Tülle (80,82) festgelegt wird. (Fig. 4)8. Style fastening device according to claims 1 to 7, characterized in that within the connection piece (20) formed by a grommet (80, 82) (20) the plug-in pins (18) are welded to the tool (86) via two overlapping flat bars (75), which is positively fixed in the spout (80, 82) with an offset (77). (Fig. 4) 9. Stielbefestigungsvorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß das Einsatzloch (24) der Kupplungshülse (16) und der Kupplungssteckzapfen (18) einen korrespondierenden rechteckigen Querschnitt besitzen.9. handle fastening device according to claim 7, characterized in that the insert hole (24) of the coupling sleeve (16) and the coupling plug pin (18) have a corresponding rectangular cross section. 10. Stielbefestigungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Handhabe als auf dem Stiel (10) gleitbare Schiebehülse (90) ausgebildet ist, die mit einem Ansatz (94) durch einen Schlitz (92) des Stiels (10) einsteht und über eine Abschrägung (96) dem entsprechend abgewinkelten Ende (73) der Blattfeder (64) anliegt, und daß die Schiebehülse (90) durch eine Druckschraubenfeder (92), welche sich gegen den Einsatz (94) und eine Stirnfläche der Kupplungshülse (16) abstützt, in die Verriegelungsstellung vorgespannt ist.10. handle fastening device according to claim 1, characterized in that the handle is designed as a sliding sleeve (90) on the handle (10) which protrudes with a shoulder (94) through a slot (92) of the handle (10) and via a Bevel (96) correspondingly angled End (73) of the leaf spring (64) abuts, and that the sliding sleeve (90) is biased into the locking position by a compression coil spring (92) which is supported against the insert (94) and an end face of the coupling sleeve (16).
EP82100805A 1981-02-06 1982-02-04 Device for attaching handles to utensils, in particular household utensils and garden tools Expired EP0057916B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT82100805T ATE13833T1 (en) 1981-02-06 1982-02-04 HANDLE ATTACHMENT DEVICE, PARTICULARLY FOR HOUSE AND GARDEN TOOLS.
DE19823246887 DE3246887C2 (en) 1982-02-04 1982-12-17 Handle attachment coupling, in particular for household and garden tools
AU10549/83A AU560672B2 (en) 1982-02-04 1983-01-18 Device for fastening handles

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3104228 1981-02-06
DE3104228A DE3104228C2 (en) 1981-02-06 1981-02-06 Stick attachment coupling
DE3130703 1981-08-03
DE19813130703 DE3130703C2 (en) 1981-08-03 1981-08-03 Handle attachment coupling, in particular for household and garden tools

Publications (3)

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EP0057916A2 true EP0057916A2 (en) 1982-08-18
EP0057916A3 EP0057916A3 (en) 1983-05-25
EP0057916B1 EP0057916B1 (en) 1985-06-19

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EP82100805A Expired EP0057916B1 (en) 1981-02-06 1982-02-04 Device for attaching handles to utensils, in particular household utensils and garden tools

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US (1) US4466377A (en)
EP (1) EP0057916B1 (en)
AT (1) ATE13833T1 (en)
CA (1) CA1190784A (en)

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EP0234210A2 (en) * 1986-01-15 1987-09-02 Heinrich Weynhoven Coupling for connecting a brush-head or the like to a shaft
EP0234210A3 (en) * 1986-01-15 1989-03-01 Heinrich Weynhoven Coupling for connecting a brush-head or the like to a shaft
GB2209301A (en) * 1987-09-03 1989-05-10 Neil Holdings Ltd James Hand tools
WO1991008867A1 (en) * 1989-12-11 1991-06-27 Jean Marc Brun Military or civilian cutting and thrusting weapon with dismountable handle
FR2659893A1 (en) * 1989-12-11 1991-09-27 Jean Marc Brun MILITARY OR CIVIL WEAPON WITH REMOVABLE HANDLE.
WO1995020339A1 (en) * 1994-01-29 1995-08-03 Mark Vasey A hairstyling aid
US5809615A (en) * 1994-09-23 1998-09-22 Wolf-Gerate Gmbh Handle for household and gardening tools
WO1996009143A1 (en) * 1994-09-23 1996-03-28 Wolf-Geräte Gmbh Vertriebsgesellschaft Kg Handle for do-it-yourself and gardening tools
EP0749809A1 (en) * 1995-06-20 1996-12-27 WOLF-Geräte GmbH Vertriebsgesellschaft KG Device for attaching a hand tool to the end of a shaft
WO2003018271A2 (en) * 2001-08-24 2003-03-06 Wolf-Garten Gmbh & Co. Kg Household and gardening device
WO2003018271A3 (en) * 2001-08-24 2003-11-06 Wolf Garten Gmbh & Co Kg Household and gardening device
EP1818142A2 (en) 2006-02-08 2007-08-15 Herramientas Eurotools, S.A. Handle for hand tools with interchangeable heads
EP1818142A3 (en) * 2006-02-08 2010-01-13 Herramientas Eurotools, S.A. Handle for hand tools with interchangeable heads
CN101774168B (en) * 2009-01-08 2011-11-16 赖进财 Extractable grab handle
ITMI20130297A1 (en) * 2013-02-28 2014-08-29 Nespoli Group S P A CONNECTION DEVICE FOR TOOLS
EP2946889A1 (en) 2014-05-19 2015-11-25 SLS Powerinvest BVBA A connector assembly for connecting a domestic implement to a handle

Also Published As

Publication number Publication date
EP0057916B1 (en) 1985-06-19
EP0057916A3 (en) 1983-05-25
CA1190784A (en) 1985-07-23
ATE13833T1 (en) 1985-07-15
US4466377A (en) 1984-08-21

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