EP3232890B1 - Pièce de raccord de tuyau d'aspiration - Google Patents

Pièce de raccord de tuyau d'aspiration Download PDF

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Publication number
EP3232890B1
EP3232890B1 EP15813054.2A EP15813054A EP3232890B1 EP 3232890 B1 EP3232890 B1 EP 3232890B1 EP 15813054 A EP15813054 A EP 15813054A EP 3232890 B1 EP3232890 B1 EP 3232890B1
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EP
European Patent Office
Prior art keywords
section
connecting piece
contour
plug
stiffening
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
Application number
EP15813054.2A
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German (de)
English (en)
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EP3232890A1 (fr
Inventor
Michael Majer
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.)
Festool GmbH
Original Assignee
Festool GmbH
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Publication date
Application filed by Festool GmbH filed Critical Festool GmbH
Publication of EP3232890A1 publication Critical patent/EP3232890A1/fr
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Publication of EP3232890B1 publication Critical patent/EP3232890B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0095—Suction cleaners or attachments adapted to collect dust or waste from power tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/242—Hose or pipe couplings
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/248—Parts, details or accessories of hoses or pipes

Definitions

  • the invention relates to a suction hose connector for a suction hose according to the preamble of claim 1.
  • the suction hose connector can be plugged with its plug-in section, for example, into a connecting sleeve or another suction hose connector of a hand machine tool, that is to say a mating connector.
  • the connection piece yields, so that it is received in or on the suction hose connection of the hand machine tool, for example, with a frictional fit.
  • the grip in the pulling direction or plugging direction is restricted by the frictional connection, which is why the suction hose can be released relatively easily when the hand machine tool is operated, for example when sawing along a guide rail. This is inconvenient for the operator and disrupts the work process.
  • a suction hose connector according to the preamble of claim 1 is shown in FIG DE 199 07 508 A1 described.
  • the base material is basically somewhat more flexible than the stiffening material, so to speak, so that, for example, compression or expansion is possible when it is inserted or pushed onto the counterpart connection.
  • the stiffening material having a longitudinal shape for example strip-shaped stiffening elements, ensures that the pipe section can be bent less sharply with respect to its longitudinal direction.
  • the pipe section is therefore, for example, more rigid than another section of the suction hose connector, so that it is less prone to kinking. This makes it easier, for example, to attach the connector and the mating connector to one another.
  • a single stiffening element already acts within the meaning of the invention, that is to say reduces the tendency of the pipe section to kink.
  • several stiffening elements are provided.
  • the following explanations therefore relate to a connection piece in which several stiffening elements are usually provided. When it comes to the geometric designs of a respective stiffening element, these are of course also easily possible with a single stiffening element.
  • the at least one stiffening element expediently extends parallel to a longitudinal axis of the at least one pipe section. But they can also have an angle to the longitudinal axis, in particular an angle of less than 90 °, in particular of less than 45 °. A relatively small inclination of the stiffening elements to the longitudinal axis of the pipe section, for example of about 5-20 °, is particularly preferred.
  • the stiffening elements can thus optimally stiffen the pipe section transversely to the longitudinal axis.
  • the at least one stiffening element extends in the direction of a plug-in axis, along which the connection piece to the connection counterpart can be infected.
  • the at least one stiffening element counteracts kinking of the pipe section.
  • At least one stiffening element and / or at least some of the stiffening elements may extend in the circumferential direction of the pipe section.
  • the at least one stiffening element or the stiffening elements have, for example, an annular or circular or arcuate course and / or are arranged in a circular or arcuate manner.
  • the stiffening acts, for example, in such a way that the pipe section can be compressed less easily.
  • the at least one stiffening element extends over an entire longitudinal length of the connection piece or essentially over an entire longitudinal length of the connection piece.
  • the at least one stiffening element does not extend over the entire longitudinal length of the connection piece. It is preferred if the at least one stiffening element has a longitudinal spacing from a free end region of the plug-in section. As a result, the so-to-speak free end region of the plug-in section can be somewhat more flexible or elastic. It is advantageous if a free end region of the plug-in section is not reinforced by a stiffening element or the stiffening material.
  • stiffening elements it is also possible for the stiffening elements to be embedded, so to speak, chaotically or unevenly in the base material of the connector.
  • stiffening elements it is possible for the stiffening elements to include fibers.
  • the at least one stiffening element is not designed as a knitted fabric. It is therefore expedient if the stiffening elements have a directional structure, that is, in the case of a fiber structure, for example, the stiffening elements run essentially parallel to one another, in particular are aligned in the direction of the longitudinal axis.
  • the at least one stiffening element has a larger cross section than a glass fiber or textile fiber.
  • the at least one stiffening element can be relatively massive, that is, it cannot be designed as a thin fiber. Nevertheless, the stiffening element can, for example, be designed in the form of a lamella or have lamellae.
  • the at least one stiffening element is not designed as a whole as a sleeve. This measure can contribute to the stiffening element being flexible transversely to the longitudinal axis.
  • the at least one stiffening element does not consist of metal. It is advantageous if the at least one stiffening element consists of plastic or a plastic material.
  • the at least one stiffening element does not consist of textile material or metal.
  • the at least one stiffening element is advantageously made of plastic or a metal that can be deformed transversely to the longitudinal axis.
  • the stiffening element can consist of a corresponding spring steel.
  • the mobility transversely to the longitudinal axis can be achieved, for example, in that the at least one stiffening element does not extend over a complete circumference of the connection piece, but only over a partial circumference, and / or that the at least one stiffening element has corresponding deformation structures, for example beads or the like.
  • the stiffening elements expediently have a transverse spacing transverse to the longitudinal axis or in a circumferential direction around the longitudinal axis.
  • the base material of the pipe section can elastically deform transversely to the longitudinal axis, wherein the stiffening elements offer little or no resistance to it.
  • stiffening elements are expediently spaced transversely from one another in the circumferential direction, i.e. around the longitudinal axis.
  • the distances between the stiffening elements contribute to this or make it possible for the circumference of the pipe section to be easily expanded or compressed, which makes it easier or, in some cases, even enables it to be slipped onto or into the counterpart connection piece.
  • the at least one stiffening element or several stiffening elements are strip-shaped according to a variant of the invention.
  • a respective stiffening element thus forms, for example, a stiffening strip.
  • the stiffening elements are laminar.
  • the stiffening elements can be designed in the form of stiffening lamellae. It is preferred if a respective stiffening element is sheet-like according to a further variant of the invention.
  • the at least one stiffening element has a curvature and / or an angular contour transversely to its longitudinal direction or transversely to its longitudinal extension direction.
  • the curvature or longitudinal contour can only be provided on at least one longitudinal section, that is to say not over the entire length, of the stiffening element.
  • the stiffening element therefore has a higher mechanical load-bearing capacity and / or is more rigid.
  • the stiffening element is ring-shaped or circular in cross section.
  • the at least one stiffening element has, for example, an arcuate cross section or an arcuate contour on its inner radius and / or on its outer radius.
  • the stiffening element can, however, also have two or more legs which are angled to one another in cross section.
  • the at least one stiffening element can have at least one angle in cross section or also be polygonal.
  • the at least one stiffening element expediently has a non-planar contour transversely to its longitudinal direction and / or in cross section.
  • a preferred embodiment of the invention provides that several stiffening elements are arranged next to one another in the manner of circular segments. There is an arcuate or angular spacing between the stiffening elements.
  • stiffening elements extend along the entire circumference of the pipe section, i.e. the pipe section, so to speak, has stiffening elements all around its circumference.
  • the stiffening elements can form a type of cage structure around the longitudinal axis of the pipe section.
  • the stiffening elements have a different transverse width with respect to their longitudinal direction, for example. For example, they are somewhat narrower in the region of their free longitudinal ends than in another longitudinal end region or in the region between their longitudinal ends, for example in the region of their longitudinal center.
  • the pipe section with the stiffening elements can, for example, form the plug-in section of the connection piece.
  • the plug-in section stiffened by the stiffening elements can be plugged onto the mating connection piece in a particularly advantageous manner.
  • the connector is stable and resilient.
  • the plug-in section has a significantly higher resistance to buckling than such a plug-in section which has no stiffening elements.
  • the stiffening elements or at least some of them are expediently connected to one another in the circumferential direction of the pipe section by a connecting section.
  • the connecting section can for example be formed by a segment-like or ring-shaped connecting body. It is particularly preferred if the tubular body forms such a connecting section.
  • at least one stiffening element to protrude from the tubular body into the tubular section reinforced by the stiffening structure or the stiffening elements.
  • the stiffening elements protrude in the manner of fingers from the pipe body or other connecting section and are embedded in the base material of the pipe section which they stiffen.
  • the tubular body is provided as a connecting section and an additional connecting section, separate from the tubular body, for connecting stiffening elements.
  • the at least one stiffening element is integral or in one piece with the tubular body.
  • the material of the tubular body forms the material of the at least one stiffening element, that is to say the stiffening material.
  • the at least one stiffening element preferably several stiffening elements, protrude from the tubular body in the direction of the tubular section reinforced by the stiffening structure.
  • a certain material for example plastic, is used in an injection molding or casting process to produce at least one stiffening element and a tubular body separate therefrom, which are connected to one another in a second production step by the base material of the tubular section.
  • the stiffening material and / or the at least one stiffening element is partially or completely encased or covered by the base material of the pipe section.
  • a relatively soft and / or elastic base material having a high coefficient of friction and / or an elastic base material can partially or completely surround the stiffening material or the at least one stiffening element.
  • the stiffening element radially on the outside and / or radially on the inside with the base material is covered or sheathed, in particular in the contact area for contact with the connection counterpart.
  • An inner component and an outer component of the base material of the pipe section are expediently molded onto the at least one stiffening element or the stiffening material of the pipe section in separate operations, for example injection molded or cast on.
  • the base material in a preferred embodiment of the invention is homogeneous, that is to say comprises a single material.
  • different materials for example plastics of different elasticity.
  • the base material of the pipe section stiffened according to the invention can thus comprise a first and a second base material.
  • the plug-in section and / or the pipe section expediently has at least one section of the flow channel.
  • Form-fit contours for example form-fit receptacles or form-fit projections, can be provided on the pipe section stiffened according to the invention. These can be formed from the softer and / or harder material, for example from the base material and / or from the stiffening material.
  • the form-fit contours can include, for example, rotary form-fit contours, longitudinal locking contours or the like.
  • the rotationally interlocking contours can comprise rotationally interlocking projections and rotationally interlocking receptacles or be provided on rotationally interlocking projections or rotationally interlocking receptacles.
  • a form-fit contour can also be provided on a stiffening element.
  • the interlocking contour is suitable, for example, as a rotational interlocking contour, latching contour, in particular longitudinal latching contour or the like, in order to provide a form-fitting hold of the connection counterpart.
  • the form-fit contour thus interacts with a form-fitting counter-contour of the connection counterpart when the connection piece is connected to the connection counterpart.
  • the form-fit contour protrudes, for example, in front of the base material, completely or only in sections.
  • a type of cam or hump or some other form-locking projection can be provided on the stiffening element, which protrudes radially outwards or radially inwards in front of the base material of the pipe section.
  • a form-fit receptacle on the at least one stiffening element is also possible.
  • the form-fitting contour to be encased at least in sections by the base material.
  • the base material is relatively soft, so it can, for example, have a higher friction than the stiffening material, which means that the form fit of the form fit contour with the form fit mating contour is better guaranteed by correspondingly higher friction.
  • At least one stiffening element protrudes in front of the base material with at least one section, for example the aforementioned form-fitting contour or also on another surface, so that a sliding surface or electrically conductive surface is formed.
  • rotational interlocking contours are arranged on the plug-in section to produce a form-fitting connection between the connection piece and the respective connection counterpart, which by a relative rotational movement of the connection piece and the connection counterpart about a longitudinal axis of the plug-in section engage or disengage with rotational interlocking counter-contours of the respective connection counterpart are bringable.
  • the rotationally interlocking contours have at least one inner rotationally interlocking contour arranged on an inner circumference of the plug-in section for an outer rotationally interlocking counter-contour arranged on an outer circumference of the plug-in connection counterpart and comprise at least one outer rotationally interlocking contour arranged on an outer circumference of the plug-in section for an inner rotationally interlocking counter-contour arranged on an inner circumference of the push-on connection counterpart.
  • Rotational interlocking contours are therefore provided on the plug-in section on the inside as well as on the outside.
  • connection piece is designed for either plugging in or for attaching a counterpart connection piece and that it can create a rotationally positive fit in both cases.
  • the rotational form fit has the advantage over a form fit exclusively in the plug-in direction that it can ensure a better hold in the pulling direction or in the direction of the longitudinal axis of the plug-in section, which for example forms a plug-in axis.
  • the rotationally interlocking contours can comprise rotationally interlocking projections and rotationally interlocking receptacles or be provided on rotationally interlocking projections or rotationally interlocking receptacles.
  • the mating connection piece can be screwed to the connection piece according to the invention.
  • the screw connection is possible in both cases, namely on the one hand in the sense of screwing, that is, when the connection counterpart is screwed onto the connection piece, but also in the sense of screwing, that is, that the connection counterpart is screwed into the connection piece.
  • a plug-in rotary movement is particularly preferred, i.e. the connection piece and the connection counterpart, so to speak, are plugged onto one another and then fixed with one another in a form-fitting manner by a rotary movement. This will become clear later.
  • the rotationally interlocking contours can, for example, comprise one or more circumferential rotationally interlocking contours that run in a spiral with respect to the plug-in axis. But a right-angled, for example designed as a circumferential groove, circumferential rotary form-locking contour is advantageous. It is also advantageous if the circumferential rotational interlocking contour comprises a thread and / or at least one bayonet rotational interlocking contour or both.
  • rotational interlocking contours namely threads, spirals, circumferential grooves which run approximately at right angles or at an obtuse angle to the plug axis, hook-shaped structures or the like.
  • a rotationally interlocking contour of the connection piece can also include, for example, a cam or a rotationally interlocking projection.
  • a form-fit contour in particular a rotationally form-fit contour, is provided which has at least one adjustment slope or wedge slope which, when the connection piece and the connection counterpart is rotated relative, causes the connection piece and the connection counterpart to be displaced and / or braced along the longitudinal axis towards one another.
  • two mutually co-operating bevels are provided on the connection piece and the counterpart connection, with one bevel or bevel being sufficient.
  • rotational form-locking contours are provided in a geometric shape and / or size.
  • rotary interlocking projections can be provided on the inside and rotary interlocking receptacles on the outside. It is possible, for example, that a circumferential groove, a thread or a bayonet arrangement is provided radially on the outside, but on the inside a cam or another rotationally interlocking contour for a connection counterpart to be inserted.
  • the inner rotational interlocking contour is therefore, for example, one that does not include a groove running in the circumferential direction.
  • connection piece for example, for groove-like or grooved rotational form-locking contours on the outer circumference or radially outside on the connection piece, in any case at least one groove-like rotationally form-locking contour is provided, while on the inner circumference or radially inward, so to speak, individual projections, cams or the like are present.
  • An advantageous embodiment of the invention provides, for example, that the at least one internal rotationally positive-locking contour of the connection piece according to the invention and the associated internal rotationally positive-locking counter-contour of the counterpart connection piece are of the same shape.
  • the at least one external rotationally positive-locking contour and the external rotationally positive-locking counter-contour (of the connection counterpart) have the same contour.
  • the equality of contours is preferably to be understood as meaning that the geometry and / or size of the rotationally interlocking contours are identical or at least match one another.
  • the respective circumferential rotational interlocking contour communicates with a longitudinal guide contour running essentially parallel to the plug-in axis, so that a rotational interlocking mating contour, for example a positive interlocking projection, cams or the like, can be introduced along the longitudinal guiding contour into the circumferential rotational interlocking contour and, if necessary, again can be moved out.
  • a rotational interlocking mating contour for example a positive interlocking projection, cams or the like
  • the longitudinal guide contour is a guide channel or the like.
  • the longitudinal guide contour and the circumferential rotational interlocking contour form an L-shaped or hook-like arrangement.
  • the rotational interlocking mating contour can, so to speak, be moved along the longitudinal guide contour and then rotated so that it engages positively in the at least one circumferential rotational interlocking contour.
  • the longitudinal guide contour can, however, be relatively wide or wide, that is to say that it enables the rotationally interlocking counter-contour not only to be inserted or moved linearly along the longitudinal guide contour, but also to be rotated to a certain extent.
  • the rotationally interlocking contour in the longitudinal guide contour can have play transversely to the plug-in axis or transversely to the longitudinal axis of the plug-in section, for example a torsional play.
  • the longitudinal guide contour narrows in the direction of the circumferential rotational interlocking contour, that is to say is narrower, so that the rotationally interlocking counter-contour is guided, so to speak, through the longitudinal guide contour in the direction of the circumferential rotational interlocking contour.
  • the longitudinal guide contour can be wider in the area of its insertion opening and narrower in the area of the circumferential rotational interlocking contour.
  • the longitudinal guide contour can be funnel-shaped or conical.
  • the rotationally interlocking contours can also comprise at least one interlocking projection, for example a cam, a bayonet hook or the like, for screwing into a rotationally interlocking counter-contour running in the circumferential direction around the longitudinal axis of the plug-in section.
  • the rotationally interlocking mating contours like the rotationally interlocking contours of the connection piece according to the invention, can include, for example, circumferential grooves running in the circumferential direction, spiraling circumferential rotational interlocking counter contours or the like.
  • the at least one form-locking projection preferably forms a component of the internal rotary form-locking contours and protrudes radially inward in the direction of the flow channel in front of a peripheral wall of the plug-in section.
  • At least one latching contour is preferably provided, which by the relative rotational movement of the connection piece and the connection counterpart around the longitudinal axis of the plug-in section and / or a sliding movement or longitudinal movement, for example parallel or essentially parallel to the longitudinal axis of the plug-in section or also obliquely to this longitudinal axis, with a Latching counter-contour of the connection counterpart can be brought into latching engagement or apart from latching engagement.
  • the rotational interlocking is also secured by a latch.
  • it is a rotary latching, rotary locking or the like.
  • the locking contour comprises a locking lug, a locking recess or the like. But also a longitudinal locking, which is achieved by a sliding movement of the connector and Connection counterpart is to be brought into engagement or disengaged relative to one another, forms an additional safety measure.
  • the latching contour can be sprung for example by a spring or a spring element, for example a helical spring. It is preferred if the at least one latching contour consists of an elastic material in order to achieve a spring effect and / or is arranged on an elastic section of the connection piece. Of course, it would also be possible for the latching contour to be stationary or hard, while the latching counter-contour that communicates or interacts with the latching contour of the connection piece is itself spring-loaded. Thus, it does not have to be that the locking contour of the connection piece as such is resilient or resiliently resilient or elastic, but the connection counterpart, possibly even not according to the invention, can also have the spring property, i.e. for example have an elastic locking countercontour.
  • the locking counter contour can also be, for example, a locking hook or locking cam.
  • Another embodiment of the invention provides for the rotationally positive locking to be secured by a lock, for example by a locking element or the like that is displaceably mounted on the connection piece or connection counterpart.
  • the locking element can engage in the latching contour of the connection piece in order to produce the lock.
  • the at least one latching contour expediently comprises a latching receptacle running transversely to the relative rotary movement or a latching projection running transversely to the relative rotary movement, for example a rib.
  • connection piece preferably extends approximately parallel to the longitudinal axis or to the plug-in axis of the plug-in section.
  • the latching contour and the latching mating contour can produce a latching, that is to say a longitudinal latching or rotary latching, in particular when the connection piece and the connection counterpart have reached their end of rotation position.
  • the locking in particular the rotary locking, represents, so to speak, only an additional security, but still allow a relative rotational movement of the connection piece and the connection counterpart.
  • the connection piece and the counterpart connection still have a rotational play around the longitudinal axis of the plug-in section or plug-in axis of the plug-in section, although they are locked together.
  • a particularly preferred embodiment of the invention provides that the at least latching contour, for example the rib or the receptacle, is arranged between the longitudinal guide contour already mentioned and the circumferential rotationally interlocking contour.
  • the at least one latching contour extends approximately in an axial extension, parallel to the plug-in axis or to the longitudinal axis of the plug-in section, to a side wall of the longitudinal guide contour. It is possible that the at least one latching contour represents, so to speak, a rib or a groove between the longitudinal guide contour and the circumferential rotary interlocking contour.
  • plug-in section and the tubular body carrying the plug-in section consist of an identical or similar material. It is possible that the plug-in section and the tubular body carrying this plug-in section consist, for example, of the same plastic and / or have the same hardness and / or elasticity.
  • the plug-in section is relatively soft, in any case consists of a softer material than the tubular body carrying the plug-in section.
  • the plug-in section can also have a softer material than the tubular body carrying it, that is to say not consist of the softer material as a whole. It is therefore possible that the plug-in section consists as a whole of the softer material or is designed as a multi-component component, that is to say that it has, for example, sections or components made of a harder material and sections or components made of a softer material.
  • the harder material is preferably the same as for the tubular body.
  • the rotationally interlocking contours and / or the latching contour are elastically flexible.
  • At least one of the rotationally form-fitting contours and / or a latching contour are elastically flexible or are arranged on the elastically flexible material.
  • An advantageous variant of the invention can provide that a rotationally interlocking contour, a latching contour or the like is relatively hard and the adjacent material is relatively soft.
  • a rotationally interlocking contour, a latching contour or the like is relatively hard and the adjacent material is relatively soft.
  • the at least one rotationally interlocking contour or latching contour is made of a harder or less elastic material than the plug-in section base body of the plug-in section which bears the rotationally interlocking contour or latching contour.
  • the rotational interlocking or locking can be ensured using the relatively hard and thus wear-resistant material of the rotational interlocking contour or the latching contour.
  • the connection is precise and dimensionally accurate.
  • the plug-in section base body yields somewhat so that the interlocking contours of the connection piece and the counterpart connection, namely the rotationally interlocking contours and the rotationally interlocking mating contours and / or the latching contour and the associated opposing latching contour can optimally rest against one another.
  • a form-fit contour for example a rotary form-fit contour, plug-in form-fit contour or latching contour, consists of a relatively low-friction and / or hard material so that the respective form-fit contour can easily slide along the form-fit mating contour.
  • defined sliding surfaces are provided, ie sections that can easily slide along one another.
  • a form-fit surface which, however, has a higher friction, for example because an elastic or softer material is provided there.
  • At least one form-fit contour for example the at least one rotary form-fit contour or the latching contour or both, are provided on a form-fit body, for example a cam or other form-fit projection, a receptacle, for example a groove or the like.
  • a recess for example a groove, notch or the like, is expediently provided on the respective form-fit body, which recess is suitable for deforming the form-fit body.
  • the recess When the form-fit body is brought into engagement or disengaged from the assigned counter-contour, the recess enables deformation or yielding of the form-fit body, so that, for example, the rotary form-fit contour or latching contour can move away from the associated counter-contour, namely the respective rotary form-fit counter-contour or latching counter-contour .
  • the recess can be completely free, so to speak filled with air, which enables a particularly high degree of mobility.
  • the form-fit body consists of a relatively hard material and the recess is, so to speak, filled or filled with softer material, for example of the plug-in section base body carrying the form-fit body.
  • the plug-in section consists of an elastically more flexible material than the tubular body.
  • At least one rotationally interlocking contour is arranged on the soft plug-in section. It is a basic idea that the rotationally interlocking contours arranged on the relatively soft plug-in section ensure an improved hold of the connection counterpart.
  • the plug-in section yields, for example, elastically, so that it can be plugged onto the mating connection piece, for example.
  • the plug-in section plugged onto the connection counterpart clamps the connection counterpart, so to speak, so that rotation is hindered or made more difficult.
  • the rotationally interlocking contours and rotationally interlocking mating contours remain optimally engaged, so that the connection piece and the mating connection piece hold together well.
  • This principle works in the same way when the plug-in section is plugged into a plug-in receptacle of the connection counterpart and is thereby somewhat compressed.
  • the plug-in section tends to expand, so that it can be rotated relatively difficultly in the plug-in receptacle.
  • the rotationally interlocking contours and the rotationally interlocking mating contours remain optimally engaged.
  • a relatively soft material of which the plug-in section is made or which the plug-in section has, generally has a higher friction than a hard material. The friction also counteracts an unintentional loosening of the rotational interlocking.
  • the rotationally interlocking contours can comprise rotationally interlocking projections and rotationally interlocking receptacles or be provided on rotationally interlocking projections or rotationally interlocking receptacles.
  • Rotational interlocking contours can be provided in the connection piece according to the invention on the inner circumference of the plug-in section or on the outer circumference of the plug-in section.
  • a variant is preferred in which rotational interlocking contours are arranged both on the inside and on the outside. It is therefore advantageous if it is provided that the at least one rotationally interlocking contour arranged on an inner circumference of the plug-in section has at least one inner rotationally interlocking contour arranged on an outer circumference of the plug-in connection counterpart and at least one outer rotationally interlocking contour arranged on an outer circumference of the plug-in section for an inner rotary interlocking counter-contour arranged on an inner circumference of the push-on connection counterpart.
  • a longitudinal latching contour that counteracts the detachment of the connection counterpart from the connection piece with respect to the longitudinal axis is expediently arranged on the plug-in section.
  • connection piece makes it possible for the connection piece to find a firm hold on the counterpart connection piece with respect to the plug-in axis.
  • the rotationally interlocking contour with the rotationally interlocking counter-contour represents an optimal hold with respect to the longitudinal axis.
  • a plug-in axis or the longitudinal axis there is in any case a better hold than through the longitudinal locking alone.
  • the material of the plug-in section is advantageously elastically or elastically resilient, as a result of which, on the one hand, the longitudinal latching is advantageously easier to produce or to release. If the at least one rotationally interlocking contour is also present on the elastic or resilient, in any case relatively soft section of the plug-in section, this can also enable a slight latching, but on the other hand also a firm hold. For example, a frictional connection between the material of the plug-in section, which is relatively soft, and the connection counterpart ensures an optimal hold on the connection counterpart.
  • connection counterpart can, however, also have only one rotationally interlocking counter-contour or only one longitudinal counter-locking contour.
  • the connection piece is compatible with both types of connection counterparts, since it has a longitudinal locking contour and at least one rotationally interlocking contour.
  • the connection piece according to the invention can interact with what are, as it were, old connection counterparts mentioned at the beginning, but also with new connection counterparts which have rotationally interlocking counter-contours.
  • the longitudinal latching contour can comprise, for example, a hook receptacle, latch receptacle or the like.
  • a respective longitudinal locking contour can, for example, be partially ring-shaped. It is particularly preferred if a longitudinal locking contour is ring-shaped.
  • the longitudinal locking contour can comprise a circumferential groove or an in particular circumferential, annular projection.
  • the longitudinal locking contour can also comprise a rib structure.
  • the at least one longitudinal locking contour can be arranged on an inner circumference or an outer circumference of the plug-in section. It is also possible for at least one longitudinal locking contour to be present both on the outer circumference and on the inner circumference.
  • the at least one longitudinal locking contour and the at least one rotationally interlocking contour are both arranged on the inner circumference or on the outer circumference.
  • the at least one rotationally interlocking contour and the at least one longitudinal locking contour are preferably arranged one behind the other with respect to a plug-in axis or an insertion direction.
  • the arrangement can be such that, for example, the longitudinal locking contour is arranged closer to the plug-in opening or the plug-on contour of the plug-in section, so that a mating connector when plugged onto the connector initially comes into contact with the longitudinal locking contour, then with the at least one rotationally interlocking contour, for example when on the Connection counterpart is a rotationally interlocking counter-contour that interacts with the rotationally interlocking contour.
  • An advantageous measure provides, in the presence of rotationally interlocking contours or at least one rotationally interlocking contour on the plug-in section, that on the plug-in section there is arranged a longitudinal latching contour that counteracts the detachment of the connection counterpart from the connection piece with respect to the longitudinal axis comes into engagement with a longitudinal counter-locking contour of the connection counterpart along the longitudinal axis of the plug-in section.
  • connection piece according to the invention is preferably made of plastic.
  • metallic components are also possible.
  • Metal is particularly suitable for better conductivity, for example to dissipate electrostatic charge.
  • a preferred, relatively hard material of which, for example, a so-called hard component, in particular the tubular body and / or at least one of the stiffening elements, is wholly or substantially composed, is expediently polypropylene or a polyamide.
  • the harder material can also comprise a thermoplastic elastomer (TPE). Although these materials can also be used for the softer material, they then have a lower strength or hardness. Depending on the crosslinking of the thermoplastic elastomer and / or the composition of the components of the elastomer, the hard property can be adjusted, so to speak.
  • thermoplastic elastomer is, for example, a so-called copolymer and consists of a "soft” elastomer and a "hard” thermoplastic component, the proportions of which are selected according to the Shore hardness desired in each case.
  • the harder or stiffer material is 1.5 times or two to three times as stiff as the softer material.
  • the stiffer material can also be four or five times as stiff as the softer material.
  • the softer or more elastic material from which, for example, the plug-in section base body, in particular its inner component and / or outer component, is made, in particular its inner component and / or outer component, is preferably an elastomer, in particular a thermoplastic elastomer.
  • the elastomer is, for example, a vulcanizate of natural rubber and silicone rubber. It goes without saying that the softer material can also comprise rubber, rubber or the like or can be formed thereby.
  • the plug-in section main body of the plug-in section in particular its inner component, is preferably made of a softer or more elastic material than the tubular body.
  • the relatively soft, elastic plug-in section ensures a tight fit and a high degree of tightness on the plug-in section of the connection counterpart.
  • the plug-in section has a certain tolerance, i.e. it adapts somewhat to the geometry of the associated mating plug-in section of the connection counterpart due to its elasticity or softness.
  • the different materials explained can advantageously be provided for different purposes, for example harder materials for form-fitting contours and softer materials in order to provide their flexibility.
  • the softer or more elastic base material can also be used to make a section of the connection piece flexible, for example for the purpose of compression when plugging into a plug-in receptacle of the connection counterpart or a possibility for expansion when plugging onto a plug-in section of the connection counterpart.
  • Harder and / or more tensile and / or more rigid materials that adjoin this in the direction of a longitudinal axis of this softer section or are preferably embedded in the softer section are used, for example, to stiffen this softer section or also to connect the suction hose, for example.
  • a relatively hard tubular body is suitable, for example, to accommodate a holder for the suction hose in a rotatable but tensile manner.
  • softer material has, for example, a higher friction than a harder material, as a result of which a frictional connection or the hold of the connection piece and the connection counterpart is improved.
  • a form-fit body that forms a latching contour, form-fit contour, in particular rotary form-fit contour or the like, is made with a coating made of a softer material.
  • a form-fit body is integral or homogeneous with the base body on which it is arranged, for example the plug-in section base body or the like.
  • connection piece materials of different hardness and / or different tensile strength and / or different elasticity are suitable for producing the connection piece as a whole or in sections as a multi-component component or for forming a connection piece with a multi-component section.
  • connection piece is characterized, for example, by the following properties.
  • a harder component or a harder material has, for example, a hardness of 20-100 Shore D or 30-100 Shore D.
  • the harder component can also be somewhat softer overall, for example 20-70 Shore D, 30-70 Shore D or 30- 60 Shore D.
  • a hardness of 60-80 Shore A is also easily possible.
  • one, for example, harder component or one, for example, harder material has a modulus of elasticity of, for example, 80-2500 N / mm 2 , in particular 1000 to 1800 N / mm 2 .
  • the softer or more elastic material is characterized by a modulus of elasticity of a maximum of 800 N / mm 2 , expediently of a maximum of 700 N / mm 2 , particularly preferably of a maximum of 600 N / mm 2 .
  • the softer component or the softer material has an elongation at break or elongation at break of at least 70%, particularly preferably of at least 80% or even of at least 100%.
  • an elongation at break or elongation at break of greater than 5% or 10%, expediently greater than 30%, but also greater than 40% or 50% is advantageous.
  • a rigidity of the harder or more rigid material is expediently 1.5 times or two to three times as high as the rigidity of the softer or less rigid material.
  • the basic material and the stiffening material are chemically similar or have the same chemical basis (for example TPE, in particular TPE-S or TPE-U / TPU), the explained stiffening elements preferably have such a higher stiffness than the basic material of the pipe section or plug-in section.
  • connection piece in particular electrically differently conductive, materials are advantageously provided. Electrically conductive materials are suitable, for example, to dissipate electrostatic charges. Thus, a softer and / or a harder material of the connection piece according to the invention can be electrically conductive. It is also possible for the connection piece as a whole or parts thereof to be electrically non-conductive.
  • connection piece has a first, electrically less conductive material than a second material, the second material protruding at least in sections in front of the first material to establish an electrical connection with the counterpart connection or in front of the first material is arranged.
  • connection piece according to the invention can, for example, have a holder for a suction hose.
  • the holder can be provided integrally on the tubular body, for example corresponding receiving ribs for a reinforcing spiral have a suction hose.
  • the holder on the tubular body is preferably provided as a separate component, for example rotatably received on the tubular body, but fixed on the tubular body in a tensile manner. It is also possible that the holder is fixed in place on the tubular body, that is to say immobile or with little play.
  • connection piece according to the invention and the connection counterpart expediently form a system of connection piece and connection counterpart. All of the above and subsequent configurations of the connection piece naturally also apply to the connection counterpart.
  • the mating connection piece like the connection piece, can form a fixed component of a hand machine tool or a vacuum cleaner or a suction hose.
  • connection piece according to the invention can have, for example, two or more plug-in sections.
  • two plug-in sections can be provided on opposite sides of the tubular body.
  • at least two plug-in sections can be arranged on one and the same side, which are suitable for different plug-in diameters of the connection counterpart.
  • plug-in sections can, for example, be nested coaxially one inside the other.
  • the connection piece expediently has a holder for a suction hose.
  • the holder has, for example, clamping contours or holding contours or form-fitting contours for the suction hose.
  • screw contours or other contours for fastening, in particular tension-proof and / or non-rotatable fastening, of the suction hose are provided on the holder.
  • the holder is expediently provided on the tubular body. With regard to the tubular body or some other component of the connection piece, the holder is arranged, for example, in a rotationally fixed and / or non-sliding and / or fixed manner.
  • the The holder can also form an integral part of the connection piece, for example be designed in one piece with the tubular body.
  • the holder can be rotated relative to the plug-in section.
  • the holder is expediently fixed against displacement along the longitudinal axis with respect to the plug-in section. It is also possible for the holder to be non-displaceable with respect to the longitudinal axis, but rotatably mounted on the tubular body or some other section of the connection piece.
  • At least one form-fitting body of the connection piece with which, for example, a rotationally form-fitting contour, a longitudinal locking contour or the like is formed, has a base material that is at least partially covered, in particular encased, in the area of the form-fitting contour with a material that is softer or more elastic relative to the base material. It is also advantageous if this other material has a higher coefficient of friction than the base material. In any case, the form-fit with a counter-form-fit contour that interacts with the form-fit contour is thus improved.
  • connection piece according to the invention can also form part of a hand machine tool.
  • a hand machine tool is also understood to be a machine tool that is portable, for example, for example a chop saw. Use is preferred, for example, in hand-held circular saws, milling machines or the like.
  • the rotationally interlocking contours ensure a particularly firm and reliable hold.
  • the connection piece can be provided permanently on the hand machine tool, but it can also be designed to be removable.
  • connection piece can comprise several components arranged one behind the other in the row direction, for example the plug-in section and a one-piece or multi-piece tubular body.
  • the multi-part tubular body can be designed, for example, in such a way that it has two tubular body sections that can be rotated and / or displaced relative to one another. It is also possible for the tubular body to be divisible, for example screwable, latchable, Has latchable or in some other way releasably connectable sections.
  • connection piece can also be a separate connection piece, for example designed as an adapter, with which, for example, two hose sections of the suction hose can be connected to one another.
  • connection piece according to the invention can, for example, be round in cross section. But it is also possible that the connection piece has a polygonal cross section. For example, it is conceivable that the connection piece still remains rotatable even with a polygonal cross section, for example with at least 8 or 12 corners, i.e. relatively flat-angled corner areas, so that it can be rotated relative to the counterpart connection and the elastic areas give way, so to speak, during the rotary movement.
  • a plug-in section of a connection piece according to the invention can serve for plugging in or plugging in the counterpart connection along the longitudinal axis of the plug-in section, the plug-in axis, so to speak. Furthermore, it is possible that a rotary movement is superimposed on this plugging movement, so that in principle the connector and the mating connector are moved relative to one another along the longitudinal axis of the connector section, but at the same time rotated relative to each other when the connection between the connector and mating connector is established.
  • a sequential connection is also possible, that is to say that the connection piece and the connection counterpart are rotated relative to one another in a sequential movement and are plugged into or detached from one another along the longitudinal axis or plug-in axis.
  • connection piece explained below are also advantageous in the case of the connection counterparts that match this connection piece.
  • the connection counterparts expediently form system components of a system comprising connection piece and connection counterpart.
  • some connection counterparts are also in accordance with the invention if they have rotary interlocking contours radially on the inside and radially on the outside, for example.
  • a connection piece 10 for a suction hose 100 has a tubular body 11, for example.
  • the tubular body 11 is followed by a plug-in section 50, which is used for attaching a mating connection piece 200 Figure 6 or for plugging in a connection counterpart 380 as in Figure 7 shown is suitable.
  • the tubular body 11 comprises a peripheral wall 12 which delimits a receptacle 19.
  • a holder 40 for the suction hose 100 is inserted into the receptacle 19.
  • the holder 40 which comprises, for example, a tubular holding body 41, is preferably rotatably received in the receptacle 19.
  • a circumferential wall 43a of the holder 40 rests, for example, on the inside 14 of the circumferential wall 12 of the tubular body 11 in a rotatable manner.
  • the inside of the holding body 41 has a holding structure 43 for holding the suction hose 100, for example a rib structure or a thread, into which the suction hose 100 can be screwed with its not shown, in particular spirally in reinforcing ribs.
  • a front, free end face 42 of the holding body 41 or of the holder 40 rests on the end face on a base 15 of the tubular body 11.
  • the holder 40 is fixed on the tubular body 12 by a holding element 45.
  • a support flange or a holding projection 47 is supported on a front, free end face or narrow side 16 of the tubular body 11.
  • a support surface 48 of the holding projection 47 rests on the free end face 16.
  • a front, free end face 46 of the holding element 45 supports an end face 44 of the holder 40, so that the holder 40 between on the one hand the holding element 45 and on the other hand the bottom 15 of the receptacle 19 is held in a sandwich-like and / or non-sliding manner.
  • latching projections or retaining projections 49 are provided, which protrude radially outward in front of the holding element 45 or its base body or holding body and engage in latching receptacles or holding receptacles 13 of the tubular body 12.
  • the holding projections 49 are preferably resiliently resilient or designed in the manner of latching pawls so that they can be displaced inwardly in the direction of the receptacle 19 in order to release the holding element 45 from the tubular body 12.
  • the tubular body 11 can encompass the holding structure 43 integrally, that is to say can receive and hold the suction hose 100 directly.
  • the tubular body 11 and / or the holding element 45 and / or the holder 40 are preferably made of a relatively hard plastic material, for example polypropylene. As a result, the strength required to hold the suction hose 100 is readily guaranteed. However, it is also possible that, for example, the holding element 45 and the tubular body 11 are made of a harder material than the holder 40 for the suction hose 100 Plastic with a lower hardness and in particular a higher flexibility or elasticity.
  • the base material of the plug section 50 is a thermoplastic elastomer.
  • the plug-in section 50 also has a relatively high flexural strength, in any case a higher flexural strength than would be the case if only thermoplastic elastomer were used.
  • a stiffening structure 20 with several stiffening elements 21 is provided for stiffening.
  • the material of the stiffening elements 21 is harder and / or more tensile and / or more rigid and / or stiffer than the base material of the plug-in section 50.
  • the material of the stiffening elements 21 is preferably at least 1.5 times, preferably 2 to three times or even four times harder or stiffer than that of the base material of the section of the connection piece stiffened by the stiffening elements 21, for example the plug-in section 50.
  • the plug-in section 50 forms a pipe section 35.
  • the plug-in section 50 is suitable for attaching or plugging in a complementary mating plug-in section and is on the one hand elastically flexible in order to enable an optimal form fit and optimal tightness with the connection counterpart, on the other hand transversely to the longitudinal axis L or Thru axle relatively stiff.
  • the tubular body 11 can of course also be designed in the manner of the plug-in section 50 or tubular section 35, although this is not shown in the drawing, that is, for example, can consist of a relatively soft material stiffening elements.
  • the base material of the plug-in section 50 forms an inner component 52 and an outer component 51, the stiffening elements 21, which are strip-shaped, advantageously completely encased.
  • the stiffening elements 21 protrude in the manner of strips or lamellas from the tubular body 12, which forms a connecting section 25 or connecting body of the stiffening elements 21, in the direction of the plug-in section 50.
  • a circumferential spacing 24 is provided between the stiffening elements 21, so that the stiffening elements 21 are spaced apart in the circumferential direction.
  • the stiffening elements 21 can therefore move closer to one another in the circumferential direction or be spread apart so that a cross section of the plug-in section 50 can be reduced or enlarged when the plug-in section 50 is plugged onto a respective connection counterpart 300 or into a connection counterpart 200.
  • the mobility or elasticity of the plug-in section 50 is also improved in that the free end regions 23 of the stiffening elements 21 are narrower than their foot regions or other longitudinal end regions 22 which are connected to the tubular body 12.
  • the tubular body 12 forms a connecting body for the stiffening elements 21, so that these are connected to one another at one longitudinal end, at their free longitudinal end regions 23 in the In the sense of an enlargement or reduction of the cross section of the plug-in section 50, they can be moved towards or away from one another.
  • the stiffening elements 21 are round in cross section, the radius roughly corresponding to the radius of the tubular body 11.
  • the contour of the stiffening elements 21 which is not planar in cross section, i.e. rounded or angled, acts in the sense of stiffening.
  • the stiffening elements 21 and the tubular body 11 consist, for example, of polypropylene, in any case one of the relatively hard materials mentioned at the beginning.
  • the inner component 51 and the outer component 52 are softer and more elastic, for example made of rubber or an elastomer, in particular a thermoplastic elastomer.
  • the inner component 52 and the outer component 51 of the plug-in section 50 receive the stiffening structure 22 integrally, that is to say the stiffening elements 21 are, so to speak, sandwiched between the inner component 52 and the outer component 51.
  • the inner component 52 and the outer component 51 are expediently injection molded sequentially onto the stiffening structure 20 and consequently onto the tubular body 11.
  • two or more spray passes are provided, in which, for example, first the inner component 52 is injected or molded onto the stiffening elements 21, then the outer component 51.
  • a preferred variant of the production provides that first the inner component 52, then the stiffening elements 21, In particular, the tubular body 11 and then the outer component 51 can also be injection-molded or cast in one piece.
  • webs 53 are formed, for example, which fill the gaps or spacings between the stiffening elements 21, that is to say the circumferential spacings 24.
  • wall sections 54 which cover the, so to speak, radially inner side of the stiffening elements 21.
  • the wall sections 54 are compared to the Web 53 somewhat thinner, for example skin-like. However, they preferably completely cover the stiffening elements 21 on the inside, so that they are covered with the elastic material of the inner component 52 in the area of a plug-in receptacle 55, which they delimit radially on the outside.
  • webs 53 are also expediently provided, between which wall sections 57 are located.
  • the wall sections 57 cover the stiffening elements 21 on the outside, i.e. form an outer wall of the plug-in section 50, while the webs 53 of the outer component 51 and the inner component 52 connect to one another and fill the gaps or gaps between the stiffening elements 21.
  • the webs 53 are elastically flexible due to the elastic material of the outer component 51 and the inner component 52, so that the stiffening elements 21, which are sheet-like or lamellar, can move towards or away from one another at least in the area of their free longitudinal ends 23. This mobility is made even easier by the fact that the transverse distance 24 between the stiffening elements 21 is greater in the area of the free longitudinal ends 23 than in the area of their other longitudinal end areas or foot areas 22.
  • the plug-in section 50 is shown in its entirety, ie the inner component 52 is already connected to the outer component 51.
  • the base material of the plug-in section 50 connects as homogeneously as possible.
  • the plug-in section 50 is injection-molded or cast onto the stiffening structure 20 or the tubular body 11 as a whole (in one injection or casting process).
  • cavities 59 for the stiffening elements 21 are provided on the plug-in section 50 or its plug-in section base body 60.
  • connection element 505 can be plugged into the plug-in receptacle 55 or the connection piece 10 can be plugged onto the connection counterpart 505.
  • the rib structure 56 comprises one or more ring-shaped, in particular circumferential, longitudinal latching contours 61, for example grooves 62. These enable longitudinal latching with longitudinal latching counter-contours 302 on a plug-in section 301 of the mating connector 300, which can be plugged into the plug-in receptacle 55.
  • the connection counterpart 300 can be connected, for example, to a suction hose, a hand machine tool or the like by means of clamping arms or holding arms 303, between which there are expediently spacings 304.
  • On the holding arms 303 there is, for example, a thread or a latching structure 305 for screwing or latching to a connection element, in particular a suction hose or a hand machine tool or a vacuum cleaner.
  • the plug-in section 301 is essential here, while the other side 307 with, for example, the holding arms 303 can definitely be designed as an alternative. It is possible, for example, for the side or the section 307 to form an integral part of a hand-held machine tool, a vacuum cleaner or the like.
  • the counterpart connection 300 can be a component made, for example, of polypropylene or another hard plastic.
  • the elastically resilient plug-in section 50 of the connection piece 10 yields somewhat when the plug-in section 301 of the connection counterpart 300 is inserted, for example in the sense of widening, so that the rib structure 56 and thus the longitudinal latching contours 61 can engage with the longitudinal latching counter-contours 302 and these in one Hold the pulling direction or the direction of a longitudinal axis L of the plug-in section 50.
  • the base material of the plug-in section 50 expediently has a high coefficient of friction, in any case a higher coefficient of friction than the material of the tubular body 11.
  • the relatively soft, in any case resilient, plug-in section 50 can also expand to such an extent or be resilient to such an extent that a mating connector 350 can be plugged into the plug-in receptacle 55, which has rotationally interlocking counter-contours 352 on its plug-in section 351. These interact with rotational form-locking contours 75 of the connection piece 10, namely with a form-locking projection 26 protruding inward into the plug-in receptacle 55.
  • the connection counterpart is shown in FIG Figure 8 shown.
  • connection piece 380 corresponding approximately to the connection piece 300 has rotationally interlocking counter-contours 352, which is shown in FIG Figure 7 is indicated.
  • the rotationally interlocking mating contours 352 can be brought into engagement with the rotationally interlocking contours 75 or the interlocking projections 26 of the connection piece 10.
  • the form-fit projections 26 could, for example, be formed integrally from the base material of the plug-in section base body 60, that is, for example, from the inner component 52. In the present case, however, the configuration is such that the form-fit projections 26 are arranged on the stiffening elements 21 and inserted through recesses 58 in the inner component 52 Plug receptacle 55 of connector 50 protrude. There they form cams which can come into engagement with the rotationally interlocking mating contours 352 or rotationally interlocking contours 70, which will be described later.
  • the rotationally interlocking mating contours 352 basically correspond in terms of geometry and shape to rotationally interlocking contours 70 on the outer circumference of the plug-in section 50 or the connection piece 10, which will be explained in more detail below.
  • the form-fit projections 26 can comprise, for example, form-fit parts 27 and 28 which are arranged on adjacent stiffening elements 21.
  • the form-fit parts 27 and 28 can as in Figure 3 be separate components shown, but be connected to one another by the inner component 52 or the outer component 51.
  • a section with elastic plastic or the like can be located between the form-fit parts 27 and 28.
  • FIG. 2 A preferred embodiment is shown in Figure 2 indicated, where namely form-fit parts 27 'and 28' are connected to one another, so to speak, to form a common form-fit projection 26 with a section 26 '.
  • the form-fit projection 26 according to the embodiment in FIG Figure 2 is thus formed on the basis of two form-fitting parts 27 'and 28', which are arranged on adjacent stiffening elements 21, but which hinder the relative movement of stiffening elements 21 towards or away from one another due to the recess 29 less than what a massive form-fitting projection 26 would do .
  • the recess 29 is expediently filled with elastic material, for example the inner component 52, but it could also be free, that is to say it could contain only air.
  • slot-like recesses 29 ′ can be provided in a respective form-fit projection 26.
  • the form-fit projections 26 protrude through recesses 58 inwardly in front of the inner component 52 into the plug-in receptacle 55.
  • the form-fit projections 26 are thus formed from a relatively hard material, for example polypropylene, which ensures high dimensional accuracy and resilience.
  • the form-fit projections 26 can also be at least partially encased by the material of the plug-in section base body 60, which is shown in FIG Figure 4 is indicated.
  • the interlocking projections 26 next to the recess 58 or in the region of the recess 58 are covered at least partially or completely by wall sections 58 ', for example the inner component 52.
  • the rotationally interlocking contours 70 include a circumferential rotationally interlocking contour 71 which is suitable for engaging, for example, the interlocking projection 26.
  • the interlocking projection 26 forms, for example, a rotary interlocking body 75.
  • connection piece 10 can be positively connected and locked with a similar, so to speak compatible, connection piece 10 by means of the plug-in rotary movement described below.
  • connection with a connection counterpart 200 is explained below, which is shown in cross section in FIG Figure 6 is shown.
  • the connection counterpart 200 has, for example, on a circumferential wall 201 delimiting its plug receptacle 255 inwardly into the plug receptacle 255, rotationally interlocking counter contours 276, for example cams, projections or the like.
  • further rotationally interlocking counter-contours 275 are provided which, for example, fit into rotationally interlocking contours of a connector designed as grooves.
  • a respective rotational interlocking mating contour 276 can be introduced into the circumferential rotational interlocking contour 71 by a longitudinal guide contour 80. This happens, for example, when the mating connection piece 200 is plugged onto the connection piece 10, namely its plug-in section 50.
  • the rotationally interlocking mating contour 276 is designed, for example, as an essentially cuboid block or hump.
  • the functionality of the rotational interlocking mating contour 276 is also provided by each of the interlocking projections 26, the interlocking projections 26, which form the rotational interlocking contours 75, being adapted even more optimally to the inner contour or interlocking contour of the circumferential rotational interlocking contour 71.
  • the longitudinal guide contour 80 is designed, for example, as a slot or guide channel.
  • the rotationally interlocking contour 75 or the rotationally interlocking mating contour 276 can along side walls or side surfaces 81, 82 of the longitudinal guide contour in the direction of the circumferential rotationally interlocking contour 71 or from this can be moved out along the longitudinal axis L.
  • the longitudinal guide contour 80 and the circumferential rotational interlocking contour 71 are, for example, approximately at right angles or in the shape of a hook relative to one another.
  • the distances between the side walls 81, 82 are preferably so large that the rotationally interlocking contour 75, namely a form-locking projection, with its side surfaces 78, 79 still has some play to the side walls or side surfaces 81, 82, but a longitudinal guide in the direction of the longitudinal axis L experiences.
  • a side surface or side wall 72 and an opposite side wall or side surface 74 of the circumferential rotational interlocking contour 71 which are designed as a groove or slot, preferably run towards one another in the direction of an end wall 73, i.e. the end area of the circumferential rotational interlocking contour 71, so that the circumferential rotational interlocking contour in the area of the end area or the end wall 73 is somewhat narrower than at its opening to the longitudinal guide contour 80.
  • the rotationally interlocking contour 75 or rotationally interlocking counter-contour 276 received between the side surfaces or side walls 72, 74 is, so to speak, taken into a press fit or at least fixed in a stationary manner with respect to the longitudinal axis L.
  • the rotationally interlocking body 75 or the rotationally interlocking mating contour 276 are thus introduced into the longitudinal guide contour 80 as part of a plug-in movement along the longitudinal axis L, with a marking 84 or an index facilitating the introduction of the rotationally interlocking body 75 or the rotationally interlocking mating contour 276.
  • the form-fit body 75 or the rotationally form-fit mating contour 276 abut the longitudinal end region 83 of the longitudinal guide contour 80. Then the connection piece 10 and the connection counterpart 275 or a complementary connection piece 10 having the form-fit body 75 are to be rotated relative to one another about the longitudinal axis L, the form-fit body 75 or the rotationally form-fitting counter-contour 276 then being rotated into the groove or circumferential rotational form-fitting contour 71.
  • the rotational movement ends when the form-fitting body 75 or the Rotary interlocking counter-contour 276 strikes against the longitudinal end region or the end wall 73 of the circumferential rotational interlocking contour 71. A further marking 85 is assigned to this rotary end position.
  • Interlocking surfaces or side surfaces 76, 77 of the rotationally interlocking contour 75 for example of the interlocking projection 26, which are assigned to the side walls 72, 74, preferably run at an angle to one another in accordance with the position of the side walls 72, 74, which results in the aforementioned wedge effect or jamming when the rotational end position or rotational interlocking closes is achieved, additionally strengthened or improved.
  • the side surface 76 and the side wall 72 are designed as inclined surfaces 76a, 72a or have inclined surfaces 76a, 72a, which when the connection piece 10 is rotated relative to a connection counterpart, for example a similarly configured connection counterpart 10 (see FIG Figure 2 ) or the connection counterpart 200, ie when the two components are rotated about the longitudinal axis L relative to one another, cause an axial adjustment or displacement of the two components along the longitudinal axis L towards one another.
  • the operator only has to rotate the connection piece 10 or the connection counterpart in order to move the two components along the longitudinal axis L relative to one another, in particular to brace them. It goes without saying that one of the inclined surfaces 76a or 72a is sufficient for such a displacement effect or tensioning effect.
  • a latching contour 86 for example a rib 87, is also provided between the longitudinal guide contour 80 and the circumferential rotationally interlocking contour 71. If the rotational interlocking mating contour 276 or the rotational interlocking contour 75 is to be moved from the longitudinal guide contour 80 into the circumferential rotational interlocking contour 71 or out of this in the direction of the longitudinal guide contour 80, it must be moved past the latching contour 86, so to speak. Thus, there is a latching around the longitudinal axis L in the direction of rotation or the circumferential direction, which secures the rotational interlocking.
  • the rib 87 is preferably made of the softer or more elastic material of the plug-in section base body 60, so that it is elastically flexible and thus enables the rotationally interlocking contour 75 or the rotationally interlocking counter-contour 276 to move past it.
  • longitudinal latching contours are also provided on the outer circumference of the plug-in section 50, namely longitudinal latching contours 90.
  • a so-to-speak imaginary course 92 of the circumferential groove 91 is shown in FIG Figure 1 indicated.
  • the circumferential groove 91 thus communicates with the longitudinal guide contours 80 (3 longitudinal guide contours 80 are provided at an angular distance, preferably the same angular distance, from one another), although this should not be essential here.
  • a latching counter-contour for example in the form of a rib structure, an annular latching projection protruding radially inward into a plug-in receptacle of a connection counterpart, a hook or the like, can be latched around the connection piece 10 to connect to the counterpart connection, not shown, so to speak in the pulling direction or longitudinal direction.
  • the plug-in section 50 in particular the outer component 51, is electrically conductive. In this way, for example, static electricity can be diverted.
  • connection piece 10 in the configuration according to FIG Figures 1 and 2 Nevertheless, the necessary electrical conductivity can be established, namely if corresponding recesses are provided on the more elastic component or soft component, through which constituents of the harder component, which is electrically conductive, are penetrated.
  • an electrical contact arrangement 30 is provided with electrical contact sections 31, 32 which protrude radially outward in front of the outer component 51.
  • the rib 87 or latching contour 86 and / or at least one of the form-fitting projections 26 can also be configured as an electrically conductive component.
  • Further electrical contact surfaces 33 are preferably provided, for example in the region of the rib structure 56, so that the form-fitting projections 26 on the one hand and these further contact surfaces 33 on the other hand are available for establishing an electrical connection in the plug-in receptacle 55.
  • the latching contour 86 or rib 87 can also be formed by a relatively hard component of the connection piece 10, for example as a projection on one of the stiffening elements 75 that protrudes in front of the outer component 51.
  • connection piece 10 a plurality of circumferential rotationally interlocking contours and, if necessary, a plurality of longitudinal guide contours communicating with them are provided.
  • connection piece 10 3 such configurations are provided, for example, at a uniform angular spacing. In this sense, 3 form-locking projections 26 or rotationally form-locking contours 75 arranged at the same angular distance are also provided.
  • rotationally interlocking contours 70 form, so to speak, outer rotationally interlocking contours
  • the rotationally interlocking contours 75 are, so to speak, inner rotationally interlocking contours.
  • connection counterpart 200 which can also be viewed as a connection piece within the meaning of the invention, both inside and outside in the area of the plug receptacle 255 in each case rotationally interlocking contours of the same type, namely the cam-like rotationally interlocking countercontours 275, 276 .
  • 3 inner rotationally interlocking counter-contours 276 and outer rotationally interlocking counter-contours 275 which are arranged at the same angular distance from one another, are provided.
  • connection counterpart 52 has a circumferential wall 278 which delimits a plug-in receptacle 255, but does not include any rotationally interlocking contours or rotationally interlocking countercontours. This is typically also the case with known hand machine tools, for example the in Figure 16 shown variant.
  • the plug-in section 50 can, however, also be plugged into the plug-in receptacle 255 of the connection counterpart 250 and is compressible so that it adapts itself optimally to the inner contour of the plug-in receptacle 255.
  • connection piece according to the invention was shown as a component arranged on the suction hose 100, for example. However, it can also be part of a vacuum cleaner or a hand machine tool, which will be made clear below.
  • a vacuum cleaner 600 is located at the free end of a suction hose 100 according to FIG Figure 9 a connection piece 10 according to the invention.
  • the suction hose connection 605 of the vacuum cleaner 600 which is arranged, for example, on the front side 602 of its housing 601, can be of a conventional type.
  • the suction hose 100 is plugged into the suction hose connection 605.
  • the other connection of the suction hose 100 which is intended for connection to the hand machine tool 700 or 500, for example, is provided with the connection piece 10 ( Figure 10 ) whereby the rotational interlocking contours 70 and also the latching contour 86 ensure an optimal hold of the connected hand machine tool.
  • connection counterpart 52 for example, can also be plugged onto the connection piece 10.
  • connection piece 10 according to the invention can be provided on the vacuum cleaner 600 instead of the suction hose connection 605 which, for example, only has a sleeve or a sleeve ( Figure 12 ).
  • This can then, for example, be used to connect a connection counterpart 200 or a similar connector 10 to enable the suction hose 100 to be held better.
  • a suction hose 100 with a mating connection piece 250 is connected to the connection piece 10 of the vacuum cleaner 10.
  • a hand machine tool 700 for example a grinding machine, has a drive motor 702 for driving a grinding tool 703.
  • a connection piece 10 according to the invention can be connected to this, which has, for example, a rib structure such as the connection counterpart 380, for example, can be plugged onto the dust outlet 705 ( Figure 13 ).
  • a connection piece 707 having rotational interlocking contours 75 can be provided.
  • the rotationally interlocking contours 75 can, for example, be brought into engagement with the rotationally interlocking contours 70 of a connection piece 10 according to the invention.
  • connection piece can be provided as the connection counterpart 505.
  • connection counterpart 505 Its circumferential wall 506 delimits, for example, a plug-in receptacle 507 into which the connection section 50 of a connection piece 10 according to the invention can be inserted, see for example Figure 19 .
  • a motor 502 arranged in the housing 501 of the hand machine tool 500 drives a tool 503, for example a saw blade.
  • connection counterpart 550 is arranged at the end of a dust guide channel 504 of the hand-held machine tool 500.
  • dust, chips or the like that arise during operation of the hand-held machine tool 500 flow through the dust guide channel 504.
  • connection counterpart 550 On the connection counterpart 550 are Rotary interlocking mating contours 576 are arranged radially on the inside and rotationally interlocking contours 575 are arranged radially on the outside on a circumferential wall 577, which delimits a plug-in receptacle.
  • counter-contours are provided that ensure a particularly firm hold on tension with respect to the longitudinal axis L.
  • connection mating piece 550 can consist exclusively of relatively hard plastic and represents a connection piece in the sense of the invention, since it has rotationally interlocking contours or rotationally interlocking mating contours on its plug-in section both radially on the inside and radially on the outside.
  • connection piece 10 is arranged at the dust outlet of the hand machine tool 500, for example fixed or detachable.
  • This preferably consists of a hard component and a soft component, as explained, and / or has, on its plug-in section, both the longitudinal guide contour 80 and 80 as well as the rotationally interlocking contours 70, so that a particularly firm hold, for example of the connection counterpart 200, is possible.
  • the peripheral wall 201 can consist of a relatively hard plastic, for example polypropylene.
  • the plug-in section 50 to be inserted into the plug-in receptacle 255 in the interior of the circumferential wall 201 consists at least on its outer circumference of a relatively softer plastic, whereby a particularly good, frictional hold and also a high degree of tightness can be achieved.
  • the circumferential wall 201 also consists of soft plastic, in particular the same plastic material as the plug-in section 50.
  • the circumferential wall 201 is stiffened by stiffening elements in the manner of the stiffening elements 21. For example, strip-shaped stiffening elements 221 are provided.
  • connection counterpart 200 both in the configuration with a hard peripheral wall 201, i.e. a hard plug-in section 250, and with a soft plug-in section 250 stiffened with stiffening elements 221 or 21, is an optimization compared to known connection pieces or connection counterparts.
  • the connection counterpart 200 can be a component for example the hand machine tool 500 or 700 or also the vacuum cleaner 600, for example each as a connection for the suction hose.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Claims (15)

  1. Pièce de raccordement de tuyau d'aspiration (10) pour un tuyau d'aspiration (100) pour établir une communication fluidique en particulier entre une machine-outil et un aspirateur, dans laquelle la pièce de raccordement (10) présente un corps tubulaire (11) avec une paroi périphérique, qui délimite un canal d'écoulement, et une section d'enfichage (50) disposée sur le corps tubulaire (11) pour établir une liaison par enfichage avec une contre-pièce de raccordement, dans laquelle la pièce de raccordement (10) et la contre-pièce de raccordement peuvent être enfichées l'une sur l'autre, dans laquelle la pièce de raccordement (10) présente une section tubulaire (35) élaborée en tant que section à composants multiples, présentant un axe longitudinal (L), et dans laquelle au moins un élément de renfort (21) présentant une forme longitudinale, composé d'un matériau de renfort plus dur et/ou plus résistant à la traction et/ou plus résistant à la flexion et/ou présentant une rigidité plus élevée par rapport au matériau de base est incorporé en tant qu'un deuxième composant dans un matériau de base, formant un premier composant, de la section tubulaire (35), caractérisée en ce qu'elle présente au moins deux éléments de renfort (21) en forme de bande ou de type lamelle ou laminaires ou de type lame s'étendant en direction de l'axe longitudinal (L) et/ou s'étendant de manière parallèle l'un par rapport à l'autre.
  2. Pièce de raccordement de tuyau d'aspiration selon la revendication 1, caractérisée en ce que l'au moins un élément de renfort (21) s'étend de manière parallèle par rapport à un axe longitudinal (L) de l'au moins une section tubulaire (35) et/ou selon un angle par rapport à l'axe longitudinal (L) inférieur à 90°, en particulier inférieur à 45°, et/ou que l'au moins un élément de renfort (21) comprend des fibres de renfort.
  3. Pièce de raccordement de tuyau selon la revendication 1 ou 2, caractérisée en ce qu'au moins deux éléments de renfort (21) présentent une distance transversale de manière transversale par rapport à l'axe longitudinal (L) ou dans une direction périphérique autour de l'axe longitudinal (L), et/ou qu'un ensemble de plusieurs éléments de renfort (21) s'étend à la manière d'une cage autour de l'axe longitudinal (L) de la section tubulaire (35) et/ou le long de l'ensemble de la périphérie de la section tubulaire (35).
  4. Pièce de raccordement de tuyau d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce que l'au moins un élément de renfort (21) présente de manière transversale par rapport à son sens longitudinal ou son sens d'extension longitudinale, en particulier de manière transversale par rapport à l'axe longitudinal (L), une incurvation et/ou un contour angulaire, et/ou que l'au moins un élément de renfort (21) présente par rapport à son sens longitudinal une première et une deuxième largeur transversale et/ou que la section tubulaire (35) présentant les éléments de renfort (21) ou l'au moins un élément de renfort (21) forme la section d'enfichage (50) et/ou exclusivement la section d'enfichage (50) est renforcée par l'au moins un élément de renfort (21) et/ou que l'au moins un élément de renfort (21) ne s'étend pas jusqu'à une zone d'extrémité libre de la section d'enfichage (50).
  5. Pièce de raccordement de tuyau d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce qu'au moins deux des éléments de renfort (21) ou tous les éléments de renfort (21) sont reliés entre eux dans le sens périphérique de la section tubulaire (35) par une section de liaison (25), dans laquelle il est prévu de manière avantageuse que la ou une section de liaison (25) est formée par le corps tubulaire (11) de la pièce de raccordement (10), et/ou que l'au moins un élément de renfort (21) ou au moins deux des éléments de renfort (21) font saillie du corps tubulaire (11) dans la section tubulaire (35), et/ou que le matériel du corps tubulaire (11) forme le matériau de renfort de l'au moins un élément de renfort (21).
  6. Pièce de raccordement de tuyau d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce que le matériau de renfort et/ou l'au moins un élément de renfort sont enveloppés ou recouverts en totalité et/ou au moins dans une zone de contact prévue pour le contact avec la contre-pièce de raccordement, par le matériau de base de la section tubulaire (35).
  7. Pièce de raccordement de tuyau d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un composant intérieur (52) et un composant extérieur (51) du matériau de base de la section tubulaire (35) sont appliqués par pulvérisation ou par coulée sur le matériau de renfort de la section tubulaire (35) dans des cycles de travail séparés, ou qu'un composant intérieur (52), l'au moins un élément de renfort (21) et un composant extérieur (51) sont appliqués par pulvérisation ou par coulée les uns sur les autres dans des cycles de travail séparés.
  8. Pièce de raccordement de tuyau d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un contour à complémentarité de forme, en particulier un contour à complémentarité de forme de rotation (70) ou un contour d'enclenchement, est disposé sur l'au moins un élément de renfort (21) pour établir une liaison à complémentarité de forme avec la contre-pièce de raccordement, dans laquelle le contour à complémentarité de forme fait saillie au moins par endroits de manière avantageuse devant le matériau de base ou est enveloppé au moins par endroits par le matériau de base.
  9. Pièce de raccordement de tuyau d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce que l'au moins un élément de renfort fait saillie devant le matériau de base au moins par endroits pour former une surface de glissement ou une surface électriquement conductrice.
  10. Pièce de raccordement de tuyau d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce qu'au moins un contour à complémentarité de forme de rotation (70) est disposé sur la section d'enfichage (50) pour établir une liaison à complémentarité de forme avec un contre-contour à complémentarité de forme de rotation de la contre-pièce de raccordement, dans laquelle au moins un contour à complémentarité de forme de rotation (70) peut être amené en prise ou hors prise avec le contre-contour à complémentarité de forme de rotation par un déplacement de rotation relatif de la pièce de raccordement (10) et de la contre-pièce de raccordement autour d'un axe longitudinal (L) de la section d'enfichage (50), et/ou qu'est disposé sur la section d'enfichage (50) un contour d'enclenchement longitudinal (61) contrecarrant un détachement de la contre-pièce de raccordement de la pièce de raccordement (10) par rapport à l'axe longitudinal (L), qui parvient en prise avec un contre-contour longitudinal de la contre-pièce de raccordement lors de l'enfichage de la contre-pièce de raccordement sur la pièce de raccordement (10) le long de l'axe longitudinal (L) de la section d'enfichage (50).
  11. Pièce de raccordement de tuyau d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle présente un support (40) disposé de manière solidaire en particulier sur le corps tubulaire (11) et/ou solidaire en coulissement par rapport à l'axe longitudinal (L) et/ou monté de manière à pouvoir tourner sur le corps tubulaire (11), pour un tuyau d'aspiration (100) et/ou qu'elle forme une partie constitutive d'un tuyau d'aspiration (100) ou d'un aspirateur ou d'une machine-outil manuelle et/ou qu'elle forme un adaptateur pour relier deux composants de forme tubulaire, en particulier pour relier deux tuyaux d'aspiration, et/ou qu'elle forme une partie constitutive de système d'un système comprenant la pièce de raccordement et la contre-pièce de raccordement.
  12. Pièce de raccordement de tuyau d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce que son matériau plus mou présente une dureté de 40 - 100 Shore A, en particulier de 50 - 90 Shore A, de manière particulièrement préférée de 60 - 80 Shore A, et son matériau plus dur présente une dureté de 30 - 100 Shore D, en particulier 30 - 70 Shore D, de manière particulièrement préférée de 30 - 60 Shore D, et/ou que son matériau moins élastique présente un module d'élasticité de 800 - 2500 N/mm2, en particulier 1000 à 1800 N/mm2, et son matériau plus élastique présente un module d'élasticité de 800 N/mm2 au maximum, de manière opportune de 700 N/mm2 au maximum, de manière particulièrement préférée de 600 N/mm2 au maximum, et/ou que son matériau plus résistant à la rupture, en particulier plus flexible, présente un allongement à la rupture > 70 %, en particulier > 80 %, de manière particulièrement préférée > 100 % et son matériau moins résistant à la rupture ou moins élastique présente un allongement à la rupture > 30 %, en particulier > 40 % ou > 50 % et/ou son matériau plus mou comprend ou est un élastomère thermoplastique et/ou son matériau plus dur comprend ou est du polypropylène ou du polyamide et/ou son matériau ou matériau de renforcement plus rigide est au moins 1,5 fois, de manière opportune au moins deux fois ou trois fois aussi rigide que son matériau moins rigide, en particulier le matériau de base de la section tubulaire.
  13. Pièce de raccordement de tuyau d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle présente un premier matériau électriquement moins conducteur, en particulier le matériau de base, en tant qu'un deuxième matériau, en particulier le matériau de renfort, dans laquelle le deuxième matériau fait saillie au moins par endroits devant le premier matériau pour établir une liaison électrique avec la contre-pièce de raccordement ou est disposé devant le premier matériau.
  14. Pièce de raccordement de tuyau d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce que l'au moins un élément de renfort (21) présente une section transversale plus grande qu'une fibre de verre ou une fibre textile ou n'est pas configuré en tant que gaine ou tricot, et/ou que l'au moins un élément de renfort (21) n'est pas constitué de matériau textile ou de métal et/ou que l'au moins un élément de renfort (21) est constitué de matière plastique ou d'un métal pouvant être déformé de manière transversale par rapport à l'axe longitudinal (L).
  15. Dispositif avec une pièce de raccordement de tuyau d'aspiration selon l'une quelconque des revendications précédentes, dans lequel le dispositif est un tuyau d'aspiration (100) ou une machine-outil ou une machine-outil manuelle (700, 500) ou un aspirateur (600).
EP15813054.2A 2014-12-19 2015-12-17 Pièce de raccord de tuyau d'aspiration Active EP3232890B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014119244.3A DE102014119244A1 (de) 2014-12-19 2014-12-19 Saugschlauch-Anschlussstück
PCT/EP2015/080159 WO2016097103A1 (fr) 2014-12-19 2015-12-17 Pièce de raccord de tuyau d'aspiration

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EP3232890A1 EP3232890A1 (fr) 2017-10-25
EP3232890B1 true EP3232890B1 (fr) 2021-12-08

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EP (1) EP3232890B1 (fr)
DE (2) DE102014119244A1 (fr)
DK (1) DK3232890T3 (fr)
WO (1) WO2016097103A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014119249A1 (de) 2014-12-19 2016-06-23 Festool Gmbh Saugschlauch-Anschlussstück

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR746630A (fr) * 1932-11-30 1933-06-02 Joint de tuyaux
BE562806A (fr) * 1956-11-29
DE1232321B (de) * 1958-12-22 1967-01-12 Rexair Inc Schlauchanschlusseinrichtung
US5797162A (en) * 1995-12-06 1998-08-25 Royal Appliance Mfg. Co. Extendable hose for a vacuum cleaner
FR2742518B1 (fr) * 1995-12-13 1998-01-09 Journee Paul Sa Agencement pour un raccordement a baionnette d'une canalisation souple sur un embout rigide
DE19907508A1 (de) * 1999-02-22 2000-08-24 Hench Gmbh H Rohrförmiges Spritzgußteil für Reinigungsgeräte
DE29916226U1 (de) * 1999-09-15 1999-12-16 H. Hench GmbH Kunststoff-Technik, 99846 Seebach Verbindungsschlauch für Reinigungsgeräte
DE102006059298A1 (de) * 2006-12-15 2008-06-19 Bayerische Motoren Werke Ag Verbindung für einen Schlauch mit einem Gehäuse
ITMI20070179U1 (it) * 2007-05-11 2008-11-12 Valentini Guido "raccordo snodato per condotto di aspirazione di utensili per la lavorazione di superfici"

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WO2016097103A1 (fr) 2016-06-23
DK3232890T3 (da) 2022-01-10
EP3232890A1 (fr) 2017-10-25
DE112015005664A5 (de) 2017-08-31
DE102014119244A1 (de) 2016-06-23

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