EP2905417B1 - Use of a tool and tool for changing a ladder foot - Google Patents
Use of a tool and tool for changing a ladder foot Download PDFInfo
- Publication number
- EP2905417B1 EP2905417B1 EP15153498.9A EP15153498A EP2905417B1 EP 2905417 B1 EP2905417 B1 EP 2905417B1 EP 15153498 A EP15153498 A EP 15153498A EP 2905417 B1 EP2905417 B1 EP 2905417B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ladder
- tool
- legs
- foot
- spar
- 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.)
- Active
Links
- 210000002105 tongue Anatomy 0.000 claims 8
- 230000008719 thickening Effects 0.000 description 9
- 239000000758 substrate Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 235000003332 Ilex aquifolium Nutrition 0.000 description 2
- 241000209027 Ilex aquifolium Species 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 102200021348 rs876659329 Human genes 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B9/00—Hand-held gripping tools other than those covered by group B25B7/00
- B25B9/02—Hand-held gripping tools other than those covered by group B25B7/00 without sliding or pivotal connections, e.g. tweezers, onepiece tongs
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
- E06C7/46—Non-skid equipment
Definitions
- the present invention relates to a use of a tool and a tool for changing a ladder foot.
- Ladder feet and ladder feet ladders are known in the art.
- the Hailo factory Rudolf Loh GmbH & Co. KG manufactures ladders with ladder feet of the type mentioned above.
- the ladder feet have a first sidewall, a second sidewall spaced on the inside of the first sidewall and spaced therefrom.
- the ends of the spars of the ladder are inserted, which are formed from rectangular hollow sections.
- the second sidewalls terminate farther from the sole of the ladder foot than the first sidewalls and have recesses in the regions overhanging the first sidewalls. In these recesses parts of the spar walls are pressed to attach the ladder feet to the spars, so that there are positive connections between the bars and the ladder feet.
- a ladder with such ladder feet is the Hailo XXL Garden & Home, which is intended for outdoor and indoor use.
- Another ladder with such ladder feet is the Hailo Parquet Line L65P, whose ladder feet are equipped with a second sole, which is connected via a joint with the rest of the ladder foot and can be pivoted in front of the first sole to a specially equipped for parquet and other sensitive floor surfaces Sole to have.
- the remedy is to create a ladder foot like the one in the document DE 20 2013 101 693 U1 is described.
- the document DE 20 2013 101 693 U1 proposes a technical teaching, according to which the ladder foot has at least one locking element for connection to the spar.
- a ladder foot is in the FIGS. 1 to 6 shown.
- the locking element allows two things: First, it allows a simple connection between the handlebar and foot, which meets the design requirements. On the other hand, the connection between the spar and foot made by means of the locking element can be released by simple means, so that the ladder foot can be removed from the spar. This makes it possible to provide arrangements of ladders and sets of ladder feet of various types, each foot type being particularly well suited for a given subsurface.
- the at least one latching element may have a grid elevation, which is provided on an outwardly facing side of the latching element.
- This grid survey can be designed like a sawtooth.
- the outwardly facing side of the locking element in this sense is the surface of the locking element, which is remote from a lying in the direction of insertion of the spar on the Porterfuß central axis of the Porterfußes.
- the at least one latching element may also have a latching arm on which the grid elevation is provided and which is connected directly or indirectly with the sole.
- the latching arm can spring.
- the ladder foot may have at least one first sidewall connected to the sole.
- the ladder foot may also have at least one second sidewall spaced from the first sidewall on the inside of the first sidewall. In the space between the first side wall and the second side wall of the spar can be inserted.
- the spar is preferably an aluminum hollow profile.
- the latching element may be formed by at least one recess in the wall.
- the recess may be at least partially U-shaped.
- the latching arm of the latching element may be surrounded by the U-shaped recess.
- the grid elevation of the latching element can project beyond the outside of the second side wall to the outside.
- the raster elevation is then in the insertion path of Holmes in the Porterfuß and can in protrude the gap between the first side wall and the second side wall.
- the ladder foot may have at least one hole extending through the sole and between the first sidewall and the second sidewall to the surface of the grid elevation lying on the side of the sole. This at least one hole can be used to produce the conductor foot and in particular the locking element of the ladder foot by injection molding.
- a second sole of the ladder foot may be attached to the sole of the ladder foot.
- This second sole is preferably detachably attached.
- the second sole may comprise the surface which makes contact with the ground in a foot mounted on a ladder.
- a ladder foot with such a second sole is described, for example, in German Utility Model Application No. 20 2012 100 445.
- a ladder equipped with such a ladder foot may have at least two spars and at least one rung or step, wherein at a lower end of the ladder to the spars depending a Porterfuß is attached, via which the head can be set up on a substrate.
- the spars have at the lower ends recesses into which the grid elevations of the locking elements are latched.
- This arrangement may comprise further ladder feet, which may be attached to the ladder instead of the ladder feet attached to the ladder, the further ladder feet having a different sole and / or second sole relative to the ladder feet mounted on the ladder.
- the document DE 20 2013 101 693 U1 suggests a use of a tool according to the preamble of claim 1 and a simple tool for changing ladder feet according to the preamble of claim 2, wherein the tool comprises a U-shaped bracket with a web and two legs, wherein on the legs attack surfaces are provided , with which the grid elevations are pivotable from a detent position into a removal position, in which the ladder foot can be pulled out of the strut.
- the simple tool is attached in the FIGS. 9a to 9d shown.
- a tool which is suitable and adapted for insertion of IC packages in a socket.
- the tool has a U-shaped bracket with a web and two legs, wherein on the legs attack surfaces are provided with which grid elevations are pivotable from a detent position to a removal position and the legs include tabs that comprise the attack surfaces.
- the legs comprise tabs which comprise the engagement surfaces, and the legs have U-shaped recesses bordered on all sides by the legs, through which the tabs are formed.
- the tabs of a tool according to the invention comprise as in the document US 2011/0173790 A1 .
- Fig. 5 Known tool, the attack surfaces with which the grid elevations are pivotable from a detent position to a removal position in which the ladder foot from the spar is pulled out. By pressing the tabs, the grid elevations of the ladder feet can be pivoted from a latching position into a removal position.
- the tabs can be elastic. On the legs of a tool according to the invention, in particular on the tabs thickenings may be provided which can penetrate into these recesses when pushing out the grid elevations from the recesses in the bars.
- a shoulder or the like may be provided on the inside of the legs and the web.
- the tool can then be pushed onto the spar or the spar and the ladder foot fastened thereto until the ladder foot or the spar strikes against the stop.
- the tool then has a defined position.
- the thickenings are then arranged so that they rest over or on the grid elevations of the Porterfußes, so that by simple Pressure on the attack surfaces the locking elements can be pressed inwards.
- FIGS ladder foot 1 has a sole 10, the underside of which forms a footprint of the Porterfußes 1 on a substrate. This bottom is textured so that it provides better resistance to slipping on a carpet or the like.
- a first side wall 11 connects. This formed the outside of the ladder foot.
- a second side wall is provided on the rear side and the front side and the portions of the sides between the rear side and the front side. This has a distance from the first side wall 11, so that there is a gap between the first side wall 11 and the second side wall 12.
- the distance between the two side walls 11, 12 is dimensioned such that it is approximately the thickness of a side wall of a spar 2, in the FIGS. 7 and 8th represented conductor corresponds. This allows the spars 2 in the space between the two side walls 11, 12 insert.
- the ladder foot 1 can be positively secured to the spar 2.
- the second side wall 12 projects beyond the first side wall 11, so that the second side wall 12 extends further into the spar 2 when the ladder foot 1 is pushed onto the spar 2, as the outside of the spar is covered by the first side wall 11.
- the first side wall 11 superior part of the second side wall 12 a U-shaped recess is provided.
- This U-shaped recess a locking element 13 is formed.
- This locking element 13 has a latching arm 131, at the end of a grid elevation 130 is provided.
- This grid survey 130 is directed to the outside.
- the latching arm 131 can be elastically bent inward.
- channels 14 are provided in the sole. These channels 14 are used to produce the locking elements 13. In these channels parts of the tool are guided during the production of the Porterfußes 1 by plastic injection molding, which each insert a notch 132 on the aligned to the sole 10 sides of the locking elements 13.
- the channel 14 is in the FIG. 4 shown.
- the upper and lower ends of the channels 14 are in the FIG. 2 and in the FIG. 3 shown.
- various webs 15 are subsequently provided on the sole 15, which give the ladder foot 1 a desired strength.
- the ladder feet 1 according to the FIGS. 1 to 6 can, as in the FIGS. 6 and 7 is shown, to be pushed onto the lower end of a spar 2 of a ladder L, for example, a step ladder, or a Klapptritts.
- a spar 2 of a ladder L for example, a step ladder, or a Klapptritts.
- the grid elevations 130 can be swiveled inwards manually or with the aid of a tool, so that the grid elevations 130 from the windows in the bars 2 are pivoted.
- Theêtfuß 1 can then be deducted from the spar 2.
- FIGS. 9a to 9d illustrated tool W is made of a U-shaped, elastic material. It has a web W1 and two adjoining legs W2. These legs have at their free ends a thickening W3.
- the thickenings are dimensioned such that they are not larger than the windows of the spars, in which the grid elevations 130 of the ladder foot 1 engage. This makes it possible, by means of the thickening W3 of the applied to a spar tool W, the grid elevations 130 from the windows in the bars 2 to press inward, so that the ladder feet 1 can be deducted from the bars 2.
- FIGS. 10 to 15 illustrated embodiment of a tool according to the invention is slightly more complex than the tool according to the FIGS. 9a to 9d , It has the principle of the same structure as the tool according to the FIGS. 9a to 9d and is made of an elastic material or at least partially made of an elastic material. It has a U-shape with a bridge W1 and adjoining legs W2.
- tabs W21 are formed, each having a thickening W3 at free ends. At least the tabs W21 are elastic. These thickenings are dimensioned so that they are not larger than the windows of the spars, in which the grid elevations 130 of the ladder foot 1 engage.
- the tabs are advantageously arranged parallel to an edge of the tool W between the web W1 and the legs W2.
- the length of the tab can then be advantageous regardless of the length of the legs W1 of this edge between the web W1 and the legs W2 and the free end of the legs W2, which is predetermined by the spar.
- the length of the tab then depends only on the width of the legs, for which there is no restriction imposed by the spar. The length of the tab can therefore be chosen to be optimal for the purpose of the tool.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Description
Die vorliegende Erfindung betrifft eine Verwendung eines Werkzeugs und ein Werkzeug zum Wechsel eines Leiterfußes.The present invention relates to a use of a tool and a tool for changing a ladder foot.
Leiterfüße und Leitern mit Leiterfüßen sind aus dem Stand der Technik bekannt. Die Hailo-Werk Rudolf Loh GmbH & Co. KG stellt Leitern mit Leiterfüßen der eingangs genannten Art her. Die Leiterfüße haben eine erste Seitenwand, einen auf der Innenseite der ersten Seitenwand mit Abstand zu derselben angeordnete zweite Seitenwand. In die sich zwischen den ersten Seitenwänden und den zweiten Seitenwänden ergebenden Zwischenräumen, sind die Enden der Holme der Leiter eingesteckt, die aus Rechteck-Hohlprofilen gebildet sind. Die zweiten Seitenwände enden weiter entfernt von der Sohle des Leiterfußes als die ersten Seitenwände und haben in den die ersten Seitenwände überragenden Bereichen Ausnehmungen. In diese Ausnehmungen sind zur Befestigung der Leiterfüße an den Holmen Teile der Holmwände eingedrückt, so dass sich formschlüssige Verbindungen zwischen den Holmen und den Leiterfüßen ergeben. Eine Leiter mit derartigen Leiterfüßen ist die Hailo XXL Garden & Home, die für den Einsatz im Außenbereich und im Innenbereich gedacht ist. Eine weitere Leiter mit derartigen Leiterfüßen ist die Hailo ParkettLine L65P, deren Leiterfüße mit einer zweiten Sohle ausgestattet sind, die über ein Gelenk mit dem übrigen Leiterfuß verbunden ist und vor die erste Sohle geschwenkt werden kann, um eine besonders für Parkett und andere empfindliche Fußbodenoberflächen ausgestattete Sohle zu haben.Ladder feet and ladder feet ladders are known in the art. The Hailo factory Rudolf Loh GmbH & Co. KG manufactures ladders with ladder feet of the type mentioned above. The ladder feet have a first sidewall, a second sidewall spaced on the inside of the first sidewall and spaced therefrom. In the resulting between the first side walls and the second side walls spaces, the ends of the spars of the ladder are inserted, which are formed from rectangular hollow sections. The second sidewalls terminate farther from the sole of the ladder foot than the first sidewalls and have recesses in the regions overhanging the first sidewalls. In these recesses parts of the spar walls are pressed to attach the ladder feet to the spars, so that there are positive connections between the bars and the ladder feet. A ladder with such ladder feet is the Hailo XXL Garden & Home, which is intended for outdoor and indoor use. Another ladder with such ladder feet is the Hailo Parquet Line L65P, whose ladder feet are equipped with a second sole, which is connected via a joint with the rest of the ladder foot and can be pivoted in front of the first sole to a specially equipped for parquet and other sensitive floor surfaces Sole to have.
Die beiden vorgenannten Leitertypen zeigen, dass es ein vermehrtes Bedürfnis gibt, für jeden Untergrund Leitern mit speziell ausgestatteten Leiterfüßen zu haben. Viele Anwender haben zum Beispiel das Bedürfnis Leitern im Innenbereich oder im Außenbereich, auf rauen, glatten, harten, weichen, schmutzigen, empfindlichen oder beliebigen anderen Untergründen zu verwenden. Für jeden dieser Untergründe sind in der Vergangenheit schon besondere Leiterfüße entwickelt worden. Es fehlt aber an einer Leiter, mit einem Leiterfuß der nicht nur für einen Untergrund sondern für beliebig viele Untergründe geschaffen ist. Selbst die Hailo ParkettLine L65P ist nur für zwei verschiedene Untergründe besonders gut geeignet.The two aforementioned types of conductors show that there is an increased need to have for each substrate ladders with specially equipped ladder feet. Many users have to Example, the need to use ladders indoors or outdoors, on rough, smooth, hard, soft, dirty, delicate or any other surfaces. For each of these substrates, special ladder feet have been developed in the past. But it lacks a ladder, with a ladder foot is created not just for a substrate but for any number of surfaces. Even the Hailo ParkettLine L65P is especially well suited for two different surfaces.
Es hat sich ferner gezeigt, dass die Verbindung zwischen den Leiterfüßen und den Holmen, die sich in der Vergangenheit als sicher und dauerhaft bewährt hat, die gestiegenen gestalterischen Anforderungen wegen der Verformung des Holmes durch das Eindrücken der Holmwand in die erwähnte Ausnehmung der bekannten Leiterfüße nur noch eingeschränkt gerecht wird.It has also been shown that the connection between the ladder feet and the spars, which has proven in the past as safe and durable, the increased design requirements due to the deformation of the spar by the impressions of the spar wall in the mentioned recess of the known ladder feet only is still fairly fair.
Abhilfe schafft dazu ein Leiterfuß wie er in dem Dokument
Das Dokument
Das wenigstens eine Rastelement kann eine Rasterhebung aufweisen, welche auf einer nach außen weisenden Seite des Rastelementes vorgesehen ist. Diese Rasterhebung kann sägezahnartig gestaltet sein.The at least one latching element may have a grid elevation, which is provided on an outwardly facing side of the latching element. This grid survey can be designed like a sawtooth.
Die nach außen weisende Seite des Rastelementes in diesem Sinne ist die Fläche des Rastelementes, die von einer in Einschubrichtung des Holmes auf den Leiterfuß liegenden zentralen Achse des Leiterfußes abgewandt ist.The outwardly facing side of the locking element in this sense is the surface of the locking element, which is remote from a lying in the direction of insertion of the spar on the Leiterfuß central axis of the Leiterfußes.
Das wenigstens eine Rastelement kann ferner einen Rastarm haben, an dem die Rasterhebung vorgesehen ist und der mit der Sohle mittelbar oder unmittelbar verbunden ist. Vorzugsweise kann der Rastarm federn.The at least one latching element may also have a latching arm on which the grid elevation is provided and which is connected directly or indirectly with the sole. Preferably, the latching arm can spring.
Der Leiterfuß kann wenigstens eine erste Seitenwand haben, die mit der Sohle verbunden ist. Der Leiterfuß kann auch wenigstens eine zweite Seitenwand haben, die mit Abstand zur ersten Seitenwand auf der Innenseite der ersten Seitenwand angeordnet ist. In den Zwischenraum zwischen der ersten Seitenwand und der zweiten Seitenwand kann der Holm eingeschoben sein. Der Holm ist vorzugsweise ein Aluminiumhohlprofil.The ladder foot may have at least one first sidewall connected to the sole. The ladder foot may also have at least one second sidewall spaced from the first sidewall on the inside of the first sidewall. In the space between the first side wall and the second side wall of the spar can be inserted. The spar is preferably an aluminum hollow profile.
Das Rastelement kann durch wenigstens eine Ausnehmung in der Wand gebildet sein. Die Ausnehmung kann zumindest abschnittsweise U-förmig sein. Der Rastarm des Rastelementes kann von der U-förmigen Ausnehmung umgeben sein.The latching element may be formed by at least one recess in the wall. The recess may be at least partially U-shaped. The latching arm of the latching element may be surrounded by the U-shaped recess.
Die Rasterhebung des Rastelementes kann die Außenseite der zweiten Seitenwand nach außen überragen. Die Rasterhebung liegt dann im Einschubweg des Holmes in den Leiterfuß und kann dabei in den Zwischenraum zwischen der ersten Seitenwand und der zweiten Seitenwand hineinragen.The grid elevation of the latching element can project beyond the outside of the second side wall to the outside. The raster elevation is then in the insertion path of Holmes in the Leiterfuß and can in protrude the gap between the first side wall and the second side wall.
Der Leiterfuß kann wenigstens ein Loch aufweisen, welches sich durch die Sohle hindurch und zwischen der ersten Seitenwand und der zweiten Seitenwand bis zur auf der Seite der Sohle liegenden Fläche der Rasterhebung erstreckt. Dieses wenigstens eine Loch kann der Herstellung der des Leiterfußes und insbesondere des Rastelementes des Leiterfußes im Spritzgussverfahren dienen.The ladder foot may have at least one hole extending through the sole and between the first sidewall and the second sidewall to the surface of the grid elevation lying on the side of the sole. This at least one hole can be used to produce the conductor foot and in particular the locking element of the ladder foot by injection molding.
An der Sohle des Leiterfußens kann eine zweite Sohle des Leiterfußes angebracht sein. Diese zweite Sohle ist vorzugsweise lösbar angebracht. Die zweite Sohle kann die Fläche umfassen, welche bei einem an einer Leiter montierten Fuß den Kontakt mit dem Untergrund herstellt. Ein Leiterfuß mit einer derartigen zweiten Sohle ist zum Beispiel in der deutschen Gebrauchsmusteranmeldung mit der Nummer 20 2012 100 445 beschrieben.A second sole of the ladder foot may be attached to the sole of the ladder foot. This second sole is preferably detachably attached. The second sole may comprise the surface which makes contact with the ground in a foot mounted on a ladder. A ladder foot with such a second sole is described, for example, in German Utility Model Application No. 20 2012 100 445.
Eine mit einem solchen Leiterfuß ausgestattete Leiter (siehe
Diese Anordnung kann weitere Leiterfüße aufweisen, die anstelle der an der Leiter befestigten Leiterfüße an der Leiter anbracht werden können, wobei die weiteren Leiterfüße eine gegenüber den an der Leiter angebrachten Leiterfüßen eine andere Sohle und/oder zweite Sohle aufweisen.This arrangement may comprise further ladder feet, which may be attached to the ladder instead of the ladder feet attached to the ladder, the further ladder feet having a different sole and / or second sole relative to the ladder feet mounted on the ladder.
Das Dokument
Es hat sich gezeigt, dass das in dem Dokument
Aus dem Dokument
Eine Lösung der Probleme mit der Verwendung des aus dem Dokument
Die sich daraus ergebende Aufgabe wird erfindungsgemäß durch ein Werkzeug mit den Merkmalen des Anspruchs 2 gelöst. Demnach umfassen die Schenkel Laschen, die die Angriffsflächen umfassen, und die Schenkel weisen u-förmige allseits von den Schenkel umrandete Ausnehmungen auf, durch die die Laschen ausgebildet sind.The resulting object is achieved by a tool with the features of
Weitere Vorschläge für verbesserte Werkezuge sind in den Ansprüchen 5, 6, 7 und 8 offenbart.Further proposals for improved tools are disclosed in claims 5, 6, 7 and 8.
Die Laschen eines erfindungsgemäßen Werkzeugs umfassen wie bei dem aus dem Dokument
Die Laschen können elastisch sein. An den Schenkeln eines erfindungsgemäßen Werkzeugs, insbesondere an den Laschen können Verdickungen vorgesehen sein, die beim Herausdrücken der Rasterhebungen aus den Ausnehmungen in den Holmen in diese Ausnehmungen eindringen können.The tabs can be elastic. On the legs of a tool according to the invention, in particular on the tabs thickenings may be provided which can penetrate into these recesses when pushing out the grid elevations from the recesses in the bars.
Um das Positionieren des Werkzeugs an einem Leiterholm zum Zwecke des Lösens eines Leiterfußes zu vereinfachen, kann auf der Innenseite der Schenkel und des Steges ein Absatz oder dergleichen vorgesehen sein. Das Werkzeug kann dann auf den Holm bzw. den Holm und den daran befestigten Leiterfuß aufgeschoben werden, bis der Leiterfuß oder der Holm an dem Anschlag anschlägt. Das Werkzeug hat dann eine definierte Position. Vorzugsweise sind die Verdickungen dann so angeordnet, dass sie über oder an den Rasterhebungen des Leiterfußes anliegen, so dass durch einfachen Druck auf die Angriffsflächen die Rastelemente nach innen gedrückt werden können.In order to facilitate the positioning of the tool on a ladder stile for the purpose of releasing a ladder foot, a shoulder or the like may be provided on the inside of the legs and the web. The tool can then be pushed onto the spar or the spar and the ladder foot fastened thereto until the ladder foot or the spar strikes against the stop. The tool then has a defined position. Preferably, the thickenings are then arranged so that they rest over or on the grid elevations of the Leiterfußes, so that by simple Pressure on the attack surfaces the locking elements can be pressed inwards.
Weitere Merkmale und Vorteile der vorliegenden Erfindungen werden deutlich anhand der Zeichnung näher erläutert. Darin zeigen
- Fig. 1
- eine Seitenansicht eines Leiterfußes,
- Fig. 2
- eine Ansicht der Vorderseite des Leiterfußes aus
Fig. 1 , - Fig. 3
- eine Ansicht der Rückseite des Leiterfußes aus
Fig. 1 ,und 2 - Fig. 4
- eine Schnittansicht gemäß der Linie A-A in
Fig. 2 , - Fig. 5
- eine Schnittansicht gemäß der Linie B-B in
Fig. 2 , - Fig. 6
- eine Ansicht des Leiterfußes von oben,
- Fig. 7
- eine Seitenansicht einer Leiter mit Holmen und daran montierten Leiterfüßen gemäß den
Fig. 1 bis 6 , - Fig. 8
- ein Detail der Ansicht aus
Fig. 7 , - Fig. 9a bis d
- Ansichten eines Werkzeugs zum Lösen der Verbindung zwischen einem erfindungsgemäßen Leiterfuß und einem Holm und
- Fig. 10
- eine Ansicht einer Vorderseite eines erfindungsgemäßen Werkzeugs zum Lösen der Verbindung zwischen einem erfindungsgemäßen Leiterfuß und einem Holm,
- Fig. 11
- eine Ansicht des erfindungsgemäßen Werkzeugs von oben,
- Fig. 12
- eine Seitenansicht des erfindungsgemäßen Werkzeugs,
- Fig. 13
- eine Ansicht des erfindungsgemäßen Werkszeugs von hinten,
- Fig. 14
- eine Schnittansicht gemäß der Linie XIV-XIV in
Fig. 11 und - Fig. 15
- eine Schnittansicht entsprechend
Fig. 14 jedoch bei eingeschwenkten Schenkeln.
- Fig. 1
- a side view of a ladder foot,
- Fig. 2
- a view of the front of the ladder foot
Fig. 1 . - Fig. 3
- a view of the back of the ladder foot
Fig. 1 and 2 . - Fig. 4
- a sectional view along the line AA in
Fig. 2 . - Fig. 5
- a sectional view along the line BB in
Fig. 2 . - Fig. 6
- a view of the ladder foot from above,
- Fig. 7
- a side view of a ladder with spars and mounted thereon ladder feet according to the
Fig. 1 to 6 . - Fig. 8
- a detail of the view
Fig. 7 . - Fig. 9a to d
- Views of a tool for releasing the connection between a Leiterfuß invention and a spar and
- Fig. 10
- a view of a front side of a tool according to the invention for releasing the connection between a Leiterfuß invention and a spar,
- Fig. 11
- a view of the tool according to the invention from above,
- Fig. 12
- a side view of the tool according to the invention,
- Fig. 13
- a view of the tool according to the invention from behind,
- Fig. 14
- a sectional view along the line XIV-XIV in
Fig. 11 and - Fig. 15
- a sectional view accordingly
Fig. 14 but with swung legs.
Der in den Figuren dargestellte Leiterfuß 1 weist eine Sohle 10 auf, deren Unterseite eine Aufstandsfläche des Leiterfußes 1 auf einem Untergrund bildet. Diese Unterseite ist strukturiert, so dass sie auf einem Teppich oder dergleichen einen besseren Widerstand gegen ein Wegrutschen bietet.The illustrated in
An die Sohle 10 schließt sich eine erste Seitenwand 11 an. Diese bildete die Außenseite des Leiterfußes. Innerhalb dieser ersten Seitenwand 11 ist auf der Rückseite und der Vorderseite und den Abschnitten der Seiten zwischen der Rückseite und der Vorderseite eine zweite Seitenwand vorgesehen. Diese hat einen Abstand zu der ersten Seitenwand 11, so dass sich zwischen der ersten Seitenwand 11 und der zweiten Seitenwand 12 ein Zwischenraum ergibt. Der Abstand zwischen den beiden Seitenwänden 11, 12 ist so bemessen, dass er in etwa der Stärke einer Seitenwand eines Holmes 2, der in den
Die zweite Seitenwand 12 überragt die erste Seitenwand 11, so dass sich die zweite Seitenwand 12 bei einem auf den Holm 2 aufgeschobenem Leiterfuß 1 weiter in den Holm 2 hinein erstreckt, als die Außenseite des Holmes von der ersten Seitenwand 11 überdeckt wird. In diesem, die erste Seitenwand 11 überragenden Teil der zweiten Seitenwand 12, ist eine U-förmige Ausnehmung vorgesehen. Durch diese U-förmige Ausnehmung wird ein Rastelement 13 gebildet. Dieses Rastelement 13 weist einen Rastarm 131 auf, an dessen Ende eine Rasterhebung 130 vorgesehen ist. Diese Rasterhebung 130 ist nach außen gerichtet. Der Rastarm 131 kann elastisch nach innen gebogen werden.The
An der Vorderseite und der Rückseite des Leiterfußes 1 sind in der Sohle Kanäle 14 vorgesehen. Diese Kanäle 14 dienen der Herstellung der Rastelemente 13. In diesen Kanälen sind während der Herstellung des Leiterfußes 1 durch Kunststoffspritzguss Teile des Werkzeuges geführt, welche an den zur Sohle 10 ausgerichteten Seiten der Rastelemente 13 je eine Kerbe 132 einfügen. Der Kanal 14 ist in der
Innerhalb der ersten Seitenwände und zum Teil auch innerhalb der zweiten Seitenwände sind an die Sohle 15 anschließend verschiedene Stege 15 vorgesehen, welche dem Leiterfuß 1 eine gewünschte Festigkeit geben.Within the first side walls and partly also within the second side walls,
Die Leiterfüße 1 gemäß den
Durch das Einrasten der Rasterhebungen 130 in die Fenster des Holmes 2 ist der Leiterfuß 1 gegen ein Abziehen vom Holm gesichert. Diese Sicherung wird dadurch verstärkt, dass an der der Sohle 10 zugewandten Seite der Rastelemente 13 die Kerbe 132 vorgesehen ist. Sollte versucht werden, die Leiterfüße 1 von dem Holm 2 abzuziehen, greift die Unterkante des Fensters in dem Holm in diese Kerbe 132 ein und verhindert, dass das Rastelement 13 aus dem Fenster herausrutscht und dadurch der Leiterfuß 1 nicht mehr auf dem Holm 2 ausreichend gesichert ist.By locking the
Solle nun einer der Leiterfuß 1 von dem Holm 2 entfernt werden, um zum Beispiel gegen einen anderen Leiterfuß 1 ausgetauscht zu werden, können die Rasterhebungen 130 manuell oder mithilfe eines Werkzeuges nach innen geschwenkt werden, so dass die Rasterhebungen 130 aus den Fenstern in den Holmen 2 geschwenkt sind. Der Leiterfuß 1 kann dann von dem Holm 2 abgezogen werden.If now one of the
Das in den
Das in den
Durch je eine im Wesentlichen u-förmige Ausnehmung in den Schenkeln W2 sind Laschen W21 ausgebildet, die an freien Enden je eine Verdickung W3 aufweisen. Zumindest die Laschen W21 sind elastisch. Auch diese Verdickungen sind so bemessen, dass sie nicht größer sind als die Fenster der Holme, in welchen die Rasterhebungen 130 des Leiterfußes 1 einrasten.By a respective substantially U-shaped recess in the legs W2 tabs W21 are formed, each having a thickening W3 at free ends. At least the tabs W21 are elastic. These thickenings are dimensioned so that they are not larger than the windows of the spars, in which the
Die Laschen sind vorteilhaft parallel zu einer Kante des Werkzeugs W zwischen dem Steg W1 und den Schenkeln W2 angeordnet. Die Länge der Lasche kann dann vorteilhaft unabhängig von der Länge der Schenkel W1 von dieser Kante zwischen dem Steg W1 und den Schenkeln W2 und dem freien Ende der Schenkel W2 sein, die durch den Holm vorgegeben ist. Die Länge der Lasche ist dann nur von der Breite der Schenkel abhängig, für die es keine Beschränkung gibt, die durch den Holm vorgegeben ist. Die Länge der Lasche kann daher so gewählt werden, dass sie optimal für den Zweck des Werkzeugs ist.The tabs are advantageously arranged parallel to an edge of the tool W between the web W1 and the legs W2. The length of the tab can then be advantageous regardless of the length of the legs W1 of this edge between the web W1 and the legs W2 and the free end of the legs W2, which is predetermined by the spar. The length of the tab then depends only on the width of the legs, for which there is no restriction imposed by the spar. The length of the tab can therefore be chosen to be optimal for the purpose of the tool.
An den Laschen W21 sind Angriffsflächen vorgesehen, an denen eine Kraft F angreifen kann, um die Laschen W21 nach innen zu drücken. Dadurch ist es möglich, mittels der Verdickungen W3 des an einen Holm angelegten Werkzeuges W die Rasterhebungen 130 aus den Fenstern in den Holmen 2 nach innen zu drücken, so dass die Leiterfüße 1 von den Holmen 2 abgezogen werden können.On the tabs W21 attack surfaces are provided, where a force F can attack to push the tabs W21 inward. This makes it possible, by means of the thickening W3 of the applied to a spar tool W, the
- 11
- Leiterfußladder foot
- 1010
- Sohlesole
- 1111
- erste Seitewandfirst side wall
- 1212
- zweite Seitenwandsecond side wall
- 1313
- Rastelementlocking element
- 130130
- RasterhebungRast collection
- 131131
- Rastarmdetent arm
- 132132
- Kerbescore
- 1414
- Lochhole
- 22
- HolmHolm
- LL
- Leiterladder
- WW
- WerkzeugTool
- W1W1
- Stegweb
- W2W2
- Schenkelleg
- W21W21
- Laschentabs
- W3W3
- Verdickungthickening
- FF
- Kraftforce
Claims (8)
- Use of a tool comprising a U-shaped bow having a web (W1) and two legs (W2), wherein the legs (2) are provided with engagement surfaces by means of which latching elevations (130) can be pivoted from a latching position into a removal position, wherein the tool is used to change ladder feet (1) on a ladder, wherein the latching elevations (130) are latching elevations of the ladder foot (1) and wherein, in the removal position of the latching elevations, the ladder foot (1) can be withdrawn from the stringer, characterized in that the legs (W2) comprise tongues (W21) which comprise the engagement surfaces.
- Tool for changing ladder feet (1) on a ladder, wherein the tool comprises a U-shaped bow having a web (W1) and two legs (W2), wherein the legs (2) are provided with engagement surfaces by means of which latching elevations (130) of the ladder foot can be pivoted from a latching position into a removal position, in particular a tool for use according to Claim 1, characterized in that the legs (W2) comprise tongues (W21) which comprise the engagement surfaces, and the legs (W2) have u-shaped cutouts which are bordered on all sides by the legs and through which the tongues (W21) are formed.
- Tool according to Claim 2, characterized in that the tongues (W21) each have a thickened portion (W3) at free ends.
- Tool according to Claim 2 or 3, characterized in that the tongues (W21) are elastic.
- Tool for changing ladder feet (1) on a ladder according to one of Claims 2 to 4, characterized in that a first direction from a connection between the tongues and the remainder of the legs to a free end of the tongues (W21) is situated parallel to the edges between the web (W1) and the legs (W2).
- Tool for changing ladder feet (1) on a ladder according to one of Claims 2 to 5, characterized in that the legs (W2) are wider than the web (W1).
- Tool according to one of Claims 2 to 6, characterized in that the tongues (W21) are longer in the first direction than the web (W1) is wide.
- Tool for changing ladder feet (1) on a ladder according to one of Claims 2 to 7, characterized in that a shoulder or the like is provided on the inner side of the legs and of the web.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201420100542 DE202014100542U1 (en) | 2013-04-19 | 2014-02-07 | Ladder foot with locking element, ladder with such a ladder foot and tool for changing the ladder foot |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2905417A1 EP2905417A1 (en) | 2015-08-12 |
EP2905417B1 true EP2905417B1 (en) | 2016-09-14 |
Family
ID=52464179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15153498.9A Active EP2905417B1 (en) | 2014-02-07 | 2015-02-02 | Use of a tool and tool for changing a ladder foot |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2905417B1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4723361A (en) * | 1986-08-18 | 1988-02-09 | At&T Teletype Corporation | IC insertion/extraction tool |
US8286317B2 (en) * | 2010-01-17 | 2012-10-16 | Cheng Uei Precision Industry Co., Ltd. | Clutching jig |
DE202012100445U1 (en) | 2012-02-09 | 2013-05-10 | Hailo-Werk Rudolf Loh Gmbh & Co. Kg | Stepladder with ladder feet |
DE202013101693U1 (en) | 2013-04-19 | 2013-04-26 | Hailo-Werk Rudolf Loh Gmbh & Co. Kg | Ladder foot with locking element |
-
2015
- 2015-02-02 EP EP15153498.9A patent/EP2905417B1/en active Active
Also Published As
Publication number | Publication date |
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EP2905417A1 (en) | 2015-08-12 |
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