EP3232890A1 - Saugschlauch-anschlussstück - Google Patents
Saugschlauch-anschlussstückInfo
- Publication number
- EP3232890A1 EP3232890A1 EP15813054.2A EP15813054A EP3232890A1 EP 3232890 A1 EP3232890 A1 EP 3232890A1 EP 15813054 A EP15813054 A EP 15813054A EP 3232890 A1 EP3232890 A1 EP 3232890A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contour
- plug
- stiffening
- suction hose
- connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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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 connecting piece for a suction hose for producing a flow connection, in particular from a machine tool to a vacuum cleaner, wherein the connecting piece has a tubular body with a peripheral wall defining a flow channel and a plug portion arranged on the tubular body for producing a plug connection with a connection counterpart , wherein the connection piece and the connection counterpart can be attached to one another.
- the suction hose connector can be plugged with its plug portion, for example, in a connection sleeve or another suction hose connection of a hand-held machine tool, so a connection counterpart.
- the connector yields, so that it is for example frictionally received in or on the suction hose connection of the hand-held machine tool.
- the stop in the pulling direction or plug-in direction is limited by the frictional engagement, which is why the suction hose during operation of the
- Hand machine tool such as sawing along a guide rail, can solve relatively easily. This is uncomfortable for the operator and disturbs the operation.
- the connecting piece constructed as a multi-component section, a longitudinal axis having pipe section wherein, in a basic material of the pipe section forming a first component, at least one stiffening element having a longitudinal shape is embedded from a stiffening material which is harder and / or more tensile and / or more resistant to bending and / or has a higher rigidity than the base material.
- the base material is, so to speak, fundamentally more flexible than the stiffening material, so that, for example, a compression or widening during insertion or attachment to the connection counterpart is possible.
- the stiffening material having a longitudinal shape ensures that the pipe section can bend less strongly with respect to its longitudinal direction.
- the pipe section is therefore, for example, more resistant to bending than another section of the suction hose connection, so that it is less prone to kinking. This facilitates, for example, the attachment of the connection piece and connection counterpart to one another.
- stiffening element acts within the meaning of the invention, thus reducing the inclination of the pipe section for kinking.
- a plurality of stiffening elements are provided.
- the following explanations therefore relate to a connection piece, in which a plurality of stiffening elements are usually provided. When it comes to the geometric shapes of a respective stiffening element, these are of course also possible with a single stiffening element readily.
- the at least one stiffening element expediently 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 less than 45 °. Particularly preferred is a relatively low inclination of the stiffening elements to the longitudinal axis of the pipe section, for example of about 5-20 °.
- the stiffening elements can 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 can be connected to the connection counterpart.
- the at least one stiffening element counteracts a kinking of the pipe section.
- At least one stiffening element and / or at least part 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 stiffener works so that the pipe section is less likely to collapse.
- the at least one reinforcing element extends over an entire longitudinal length of the connecting piece or substantially over an entire longitudinal length of the connecting piece.
- the at least one stiffening element does not extend over the entire longitudinal length of the connecting piece. It is preferred if the at least one stiffening element has a longitudinal distance to a free end region of the plug-in section. As a result, the so-called free end region of the plug-in section can be somewhat more yielding 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 may be chaotically or unevenly embedded in the base material of the connection piece, as it were.
- stiffening elements it is possible for the stiffening elements to comprise or be formed by fibers.
- the at least one stiffening element is not configured as a knitted fabric. It is therefore expedient if the stiffening elements have a directional structure, that is to say that For example, in the case of a fiber structure, the stiffening elements are substantially parallel to each other, in particular 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 to say not configured as a thin fiber. Nevertheless, the stiffening element may e.g. be configured in the shape of a lamella or have lamellae.
- the at least one stiffening element is not configured as a whole as a sleeve. This measure can contribute to the fact that the stiffening element is yielding transversely to the longitudinal axis.
- the at least one stiffening element is not made 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 is not made of textile material or metal.
- the at least one stiffening element made of plastic or a metal deformable transversely to the longitudinal axis.
- the stiffening element may consist of a corresponding spring steel.
- the mobility transverse to the longitudinal axis, for example in the sense of expansion or in the sense of radial compression can be achieved, for example, that the at least one stiffening element does not extend over a complete circumference of the connector, but only over a partial circumference, and / or has at least one stiffening element corresponding deformation structures, such as beads or the like.
- the stiffening elements have expediently a transverse distance transverse to the longitudinal axis or in a memorisnchtung about the longitudinal axis.
- the base material of the pipe section can deform elastically transversely to the longitudinal axis, wherein the stiffening elements afford little or no resistance.
- the stiffening elements are conveniently in the circumferential direction, i. around the longitudinal axis, a transverse distance from each other.
- the distances between the stiffening elements help or make it possible for the circumference of the pipe section to be easily widened or compressed, which makes it easier to plug on or plug in on or into the connection counterpart, or even makes it possible in some cases.
- the at least one stiffening element or several stiffening elements are preferably strip-shaped.
- a respective stiffening element thus forms, for example, a stiffening strip.
- the stiffening elements are preferably laminar.
- the stiffening elements may for example be designed in the manner of stiffening blades. It is preferred if a respective stiffening element is leaf-like.
- the at least one stiffening element has a curvature and / or an angular contour transversely to its longitudinal direction or transversely to its longitudinal direction.
- the curvature or longitudinal contour can only be provided on at least one longitudinal section, ie not over the entire length of the stiffening element.
- the stiffening element thereby has a higher mechanical load-bearing capacity and / or is stiffer.
- the stiffening element in cross section is annular or circular.
- the at least one stiffening element has, for example, an arcuate cross section or an arcuate contour at its inner radius and / or at its outer radius.
- the stiffening element may have in cross-section but also two or more mutually angled legs.
- the at least one stiffening element may have at least one angle in cross-section or 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 a plurality of stiffening elements in the manner of circular segments are arranged side by side. Between the stiffening elements is in each case an arcuate distance or angular distance.
- stiffening fibers and lamellar or strip-like stiffening elements is readily possible.
- stiffening elements extend along the entire circumference of the pipe section, i. the pipe section has, as it were, a total of stiffening elements on its circumference.
- the stiffening elements may form a kind of cage structure about the longitudinal axis of the pipe section.
- the stiffening elements have, for example, with respect to their longitudinal direction on a different transverse width. For example, they are somewhat narrower in the region of their free longitudinal ends than on 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 stiffened by the stiffening elements plug portion can be infected in a particularly favorable manner to the connection counterpart.
- the plug connection is stable and loadable.
- the plug-in portion has a significantly higher buckling strength compared to such a plug-in portion 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 be formed for example by a circular segment-like or annular connecting body. It is particularly preferred if the tubular body forms such a connecting portion.
- at least one stiffening element to project from the tubular body into the tubular section reinforced by the stiffening structure or the stiffening elements.
- the stiffening elements are in the manner of fingers from the tubular body or the other connecting portion and are embedded in the base material of the pipe section they stiffen.
- the tubular body is provided as a connecting portion and an additional, separate from the tubular body connecting portion for connecting stiffening elements.
- the at least one stiffening element is integral or integral 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 a plurality of stiffening elements, protrude from the tube body in the direction of the tube section reinforced by the stiffening structure.
- a specific material for example plastic, is used to produce at least one stiffening element and a separate tubular body, which in a second production step are interconnected by the base material of the pipe section.
- the stiffening material and / or the at least one stiffening element is partially or completely sheathed or covered by the base material of the pipe section.
- a relatively soft and / or a large Reib gleichkostoryen exhibiting and / or elastic base material partially or completely surround the stiffening material or the at least one stiffening element.
- the stiffening element radially outward and / or radially inward with the base material is covered or memorinunantelt, especially 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 formed in separate operations, for example injection-molded or cast-on.
- the base material in a preferred embodiment of the invention is homogeneous, that is, comprises a single material. But it is also possible to use different materials as base material, for example plastics of different elasticity. Thus, it is readily possible for example in the aforementioned embodiment with inner component and outer component, for example, to use a different base material for the inner component than for the outer component.
- the base material of the pipe section stiffened according to the invention can therefore comprise a first and a second base material.
- the plug portion and / or the pipe section expediently has at least a portion of the flow channel.
- Forming contours for example form-fitting receptacles or form-fitting projections, can be provided on the tube section stiffened according to the invention. These may be formed by the softer and / or harder material, that is, for example, the base material and / or the stiffening material.
- the form-fitting contours may comprise, for example, rotational form-locking contours, longitudinal locking contours or the like.
- Rotary form-fitting protrusions and rotary form-locking receptacles may comprise or be provided on rotational-form-locking projections or rotational-form-fitting receptacles.
- a stiffening element can also be provided a positive locking contour.
- the form-fitting contour is suitable, for example, as a rotational form-fitting contour, latching contour, in particular a longitudinal catch contour or the like, in order to provide a form-fitting hold of the connection counterpart.
- the form-locking Contour thus cooperates with a form-fitting counter contour of the connection counterpart when the connection piece is connected to the connection counterpart.
- the form-fitting contour projects, for example, in front of the base material, completely or only in sections.
- a type of cam or bump or another form-fitting projection may be provided on the stiffening element, which protrudes radially outward or radially in front of the base material of the pipe section.
- a positive connection to the at least one stiffening element is possible.
- the form-fitting contour of the base material is at least partially sheathed.
- the base material is relatively soft, so for example, may have a higher friction than the stiffening material, which means that the positive connection of the positive locking contour with the positive locking counter contour is better ensured by correspondingly higher friction.
- An advantageous measure provides that projects the at least one stiffening element with at least one portion, for example, the aforementioned form-fitting contour or on another surface in front of the base material, so that a sliding surface or electrically conductive surface is formed.
- the rotational-form-locking contours have at least one inner rotational-form-locking contour arranged on an inner periphery of the plug-in section for an outer rotational-form-locking counter-contour arranged on an outer circumference of the plug-in connection counterpart at least one arranged on an outer circumference of the plug-in section outer Drehform gleichkontur for a arranged on an inner periphery of the Aufsteck-connection counterpart inner Drehform gleichurgikontur.
- rotary-forming contours are provided both inside and outside.
- the connector is designed either for insertion and for attaching a connection counterpart and in each case can create a rotational form fit.
- the rotary mold closure has the advantage that it can ensure a better grip in the pulling direction or in the direction of the longitudinal axis of the plug-in portion, which forms, for example, a thru-axle, compared to a form-fit exclusively in the plug-in direction.
- the rotational form-locking contours can be rotary-form-fitting projections and
- Rotary form-locking receptacles include or be provided to Drehform gleichvorsprüngen or Drehform gleichfactn.
- connection counterpart can be screwed to the connector according to the invention.
- the screwing is possible in both cases, namely on the one hand in the sense of unscrewing, that is, when the connection counterpart is screwed onto the connector, but also in the sense of screwing, that is, the connection counterpart is screwed into the connector.
- Particularly preferred is a
- Plug-in rotary motion i. that the connection piece and the connection counterpart are, so to speak, connected to one another and then fixed in a form-fitting manner by a rotational movement with one another. This will become clear later.
- the circumferential rotational form-locking contour comprises a thread and / or at least one bayonet rotational-form-locking contour or both.
- a Drehform gleichkontur the connector also include, for example, a cam or a Drehform gleich- projection.
- a form-fitting contour in particular a rotational locking contour is provided, which causes a displacement and / or distortion of the connecting piece and the connection counterpart along the longitudinal axis to each other in a relative rotation of the connecting piece and the counterpart connection.
- two mutually cooperating pitches are provided on the connection piece and connection counterpart, wherein a set slope or wedge slope is sufficient.
- An advantageous embodiment of the invention provides, for example, that the at least one inner rotary mold closing contour of the connecting piece according to the invention and the associated inner Drehform gleicharnatur the connection counterpart are identical in shape.
- the at least one outer rotary mold closing contour and the outer rotary mold closing counter contour (of the connecting counterpart) are identical in shape.
- the contour equality is preferably to be understood as meaning that geometry and / or size of the rotational form-fitting contours are identical or at least suitable for one another.
- the respective circumferential rotational-form-locking contour in at least one, advantageously a plurality of circumferential rotational form-fitting contours, it is advantageous for the respective circumferential rotational-form-locking contour to communicate with a longitudinal guide contour extending essentially parallel to the plug-in axis, so that a rotary positive locking counter contour, for example a positive locking projection, cam or the like, can be introduced along the longitudinal guide contour into the peripheral rotary mold clamping contour and optionally is also moved out again.
- the longitudinal guide contour is a guide channel or the like.
- form the longitudinal guide contour and the designedssearchform gleichkontur an L-shaped or hook-like arrangement.
- the rotational-form-locking counter-contour can be moved along the longitudinal guide contour, so to speak, and then rotated, so that it engages in the at least one circumferential rotational-locking-mold contour in a conclusive manner.
- the longitudinal guide contour can be relatively wide or wide, that is, it allows that the Drehform gleichurgikontur along the longitudinal guide contour can not only be plugged or linearly moved, but also can be rotated to some extent.
- the rotational form-locking contour in the longitudinal guide contour can have a play transversely to the plug-in axis or transversely to the longitudinal axis of the plug-in portion, for example a rotational play.
- An advantageous variant provides that the longitudinal guide contour narrows in the direction of the peripheral rotational-form-locking contour, ie is narrower, so that the
- the longitudinal guide contour can be wider in the region of its insertion opening and narrower in the region of the peripheral rotational-form-locking contour.
- the longitudinal guide contour run funnel-shaped or conical.
- the Drehform gleichkonturen may also comprise at least one positive locking projection, for example a cam, a bayonet hook or the like, for screwing in a running in the circumferential direction about the longitudinal axis of the plug portion Drehform gleichadelkontur.
- the rotational-form-fitting counter contours may comprise, for example, circumferential grooves running in the circumferential direction, spirally running circumferential rotational-form-fitting counter-contours or the like.
- the at least one form-fitting projection preferably forms part of the internal rotational-form-locking contours and protrudes radially inward in the direction of the flow channel in front of a circumferential wall of the plug-in section.
- At least one latching contour is provided, which is formed by the relative rotational movement of the connection piece and the connection counterpart about the longitudinal axis of the plug portion and / or a sliding or longitudinal movement, for example parallel or substantially parallel to the longitudinal axis of the plug portion or obliquely to this longitudinal axis, with a locking counter contour of the connection counterpart in latching engagement or out of a locking engagement can be brought. So it's not just a Drehformsehl uss available in this case, but also a locking.
- the rotational form closure is thus additionally secured by a catch.
- the latching contour comprises a latching lug, a latching recess or the like. But also a L jossverrastung, by the a sliding movement of connection piece and Connecting counterpart relative to each other is engaged or disengaged forms an additional safeguard.
- 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 to achieve a spring effect consists of an elastic material and / or is arranged on an elastic portion 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 communicating with or cooperating with the latching contour of the connection piece is in turn spring-loaded. Therefore, it must therefore not be that the locking contour of the connector as such is resilient or resilient or elastic, but it may also, possibly even not inventive, connection counterpart having the spring property, so for example have an elastic locking counter contour.
- the detent counter contour may for example also be a latching hook or locking cams.
- a further embodiment of the invention provides to secure the rotary mold closure by a lock, for example by a locking element or the like displaceably mounted on the connecting piece or connection counterpart.
- the locking element can engage in the locking contour of the connector to produce the lock.
- the at least one latching contour expediently comprises a latching receptacle extending 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 counter 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 rotation end position. But it is also possible that the locking, in particular the rotation latching, so to speak only provides additional security, but still allow a relative rotational movement of connection piece and connection counterpart. Then so have the fitting and the connection counterpart still a rotational play about the longitudinal axis of the plug-in portion or plug-in axis of the plug-in portion, 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, between the already mentioned longitudinal guide contour and the designedssearchform gleichkon- tur is arranged.
- the at least one latching contour extends approximately in the 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 for the at least one latching contour to represent, as it were, a rib or a groove between the longitudinal guide contour and the circumferential rotary-mold closing contour.
- An embodiment of the invention can provide that the plug portion and the plug-in portion carrying tubular body made of an identical or similar material. It is possible that the plug-in section and the tube 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 portion is relatively soft, at least consists of a softer material than the tubular body carrying the plug-in portion.
- the plug-in portion may also have a softer material than the tube body carrying it, ie, not as a whole consist of the softer material. It is thus possible that the plug-in section as a whole consists of the softer material or is designed as a multi-component component, ie that it has, for example, sections or components made of a harder material and sections or components of a softer material.
- the harder material is preferably the same as the tubular body. It is preferred if a certain elasticity is present, which improves the preservation of the positive connection. For example, it is provided that the rotational-form-fitting contours and / or the latching contour are elastically yielding.
- At least one of the rotational form closure contours and / or a latching contour is elastically yielding or are arranged on the elastically yielding material.
- An advantageous variant of the invention can provide that a rotational mold clamping contour, a latching contour or the like is relatively hard and the adjacent material is relatively soft.
- the at least one rotational-form-locking contour or locking contour consists of a harder or less elastic material than the plug-in section base body of the plug-in section which carries the rotational-form-locking contour or latching contour.
- the plug-in section base body yields slightly, so that the form-fitting co-operating contours of connection piece and connection counterpart, namely the rotational form-locking contours and the rotational form-fitting counter contours and / or the catch contour and the associated counter-locking contour can optimally abut each other.
- a form-fitting contour for example a rotary mold closing contour, plug mold contour or latching contour, consists of a relatively low friction and / or hard material, so that the respective form-fitting contour can easily slide along the form-fitting counter contour.
- defined sliding surfaces are provided, ie sections that can easily slide along each other.
- a positive locking surface but which has a higher friction, for example, because there is an elastic or softer material is provided.
- An advantageous variant of the invention provides that at least one positive locking contour, for example, the at least one Drehform gleichkontur or the locking contour or both, are provided on a form-fitting body, such as a cam or other form-fitting projection, a receptacle, such as a groove or the like.
- a recess for example a groove, notch or the like, is provided, which is suitable for deforming the form-fitting body.
- the recess allows deformation or yielding of the form-fitting body, so that, for example, the rotational mold closing contour or latch contour of the associated mating contour, namely the respective Drehform gleicharnatur or Rastussikontur move away ,
- the recess can be completely free, so to speak to be filled with air, which allows a particularly high mobility.
- the positive-fit body consists of a relatively hard material and the recess with softer material, for example, of the form-fitting body-bearing plug-portion base body, as it were filled or filled.
- the plug-in portion consists of a more resilient material than the tubular body. At least one rotary mold closing contour is arranged on the soft plug-in section. It is a basic idea that an improved hold of the connection counterpart is ensured by the arranged on the relatively soft plug portion Drehform gleichkonturen.
- connection counterpart is ensured by the arranged on the relatively soft plug-in section Drehform gleichkonturen or at least one rotational mold clamping contour.
- the plug-in section yields elastically so that it can be plugged onto the connection counterpart, for example.
- the plug-in section plugged onto the connecting counterpart clings, as it were, the connection gen Culture, so that a rotation is hindered or impeded.
- the Drehform gleichkonturen and Drehform gleicharnaturen optimally engaged so that the connector and the port counterpart hold together well.
- this principle works when the plug-in portion is plugged into a socket of the connection counterpart and thus something is compressed.
- the male portion tends to expand so that it can be relatively difficult to twist in the female connector.
- a further aspect is that a relatively soft material, of which the plug-in portion consists or which has the plug-in portion, as a rule has a higher friction than a hard material. The friction also counteracts unintentional release of the rotational mold closure.
- the rotational form-locking contours can be rotary-form-fitting projections and
- Rotary form-locking receptacles include or be provided to Drehform gleichvorsprüngen or Drehform gleichfactn.
- the at least one rotational-locking contour has at least one inner rotational-locking end contour arranged on an inner circumference of the plug-in section for an outer rotational-locking counter-contour arranged on an outer circumference of the insertion counterpart and at least one on an outer circumference of the plug-in section arranged outer Drehform gleichkontur for a arranged on an inner circumference of the Aufsteck-connection counterpart inner Drehform gleichurgikontur.
- a release of the connection counterpart from the connector with respect to the longitudinal axis counteracting Langsrastkontur is arranged on the plug portion.
- Drehform gleich oughtkontur represents an optimal grip with respect to the longitudinal axis. In any case, with respect to a thru-axle or the longitudinal axis a better grip is given than solely by the Lssensverrastung.
- the material of the plug-in portion is elastically or elastically yielding, whereby on the one hand the longitudinal latching is advantageously easier to produce or detachable. If the at least one rotational-form-locking contour is also present on the elastic or yielding, in any case relatively soft section of the plug-in section, this can also provide a slight locking, but on the other hand also allow a firm hold. For example, provides a frictional engagement between the material of the male section, which is relatively soft, and the connection counterpart for optimum grip on the connection counterpart.
- connection counterpart can also have only one rotational form-fitting counter-contour or only one longitudinal counter-locking contour.
- the connector is compatible with both types of connector counterparts, as it has a longitudinal latching contour and at least one rotational mold clamping contour.
- the connection piece according to the invention can cooperate with, so to speak, old connection counterparts mentioned at the beginning, but also with new connection counterparts, which have turned-form counter contours.
- the longitudinal locking contour may comprise, for example, a hook receptacle, latching receptacle or the like.
- a respective longitudinal latching contour can be, for example, part-ring-shaped. It is particularly preferred if a longitudinal locking contour is annular.
- the longitudinal locking contour comprise a circumferential groove or a particular circumferential, annular projection.
- the longitudinal locking contour may also comprise a rib structure.
- the at least one longitudinal latching contour can be arranged on an inner circumference or an outer circumference of the plug-in section. It is also possible that at least one longitudinal locking contour is present both on the outer circumference and on the inner circumference.
- the at least one longitudinal locking contour and the at least one rotational locking contour are both arranged on the inner circumference or on the outer circumference.
- the at least one rotational-form-locking 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 made such that, for example, the longitudinal latching contour is arranged closer to the insertion opening or the plug-in contour of the plug-in section, so that a connection counterpart initially comes into contact with the longitudinal latching contour when it is plugged into the connection piece, then with the at least one rotational-form-locking contour, for example if at Connection counterpart a cooperating with the rotational mold clamping contour Drehform gleich brieflykontur is present.
- An advantageous measure provides in the presence of Drehform gleichkontu- reindeer or at least one Drehform gleichkontur before at the plug-in portion, that a release of the connection counterpart from the connector with respect to the longitudinal axis counteracting L jossrastkontur is arranged, which upon insertion of the connection counterpart to the connection along the longitudinal axis of the plug-in section into engagement with a longitudinal latching contour of the connection counterpart.
- the connector according to the invention is preferably made of plastic.
- metallic components are also possible.
- metal is suitable for better conductivity, for example for dissipation of electrostatic charge.
- a preferred, relatively hard material from which, for example, a so-called hard component, in particular the tubular body and / or at least one of the stiffening elements consists entirely or substantially, is expediently polypropylene or a polyamide.
- the harder material may also include a thermoplastic elastomer (TPE). Although these materials can be used for the softer material, but then have a lower strength or hardness.
- TPE thermoplastic elastomer
- the thermoplastic elastomer is, for example, a so-called copolymer and consists of a "soft" elastomeric and a "hard” thermoplastic component, the proportions of which are selected according to the desired Shore hardness.
- the harder or stiffer material is 1, 5, or 2 to 3 times as stiff as the softer material.
- the softer or more elastic material of which, for example, the plug-in base body, in particular its inner component and / or outer component, consists, in particular its inner component and / or outer component dkomponente, is preferably an elastomer, in particular a thermoplastic elastomer.
- the elastomer is, for example, a vulcanizate of natural rubber and silicone rubber. It is understood that the softer material may also include or may be formed by rubber, rubber or the like.
- the plug-in section basic body of the plug-in section in particular its inner component, preferably consists 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 tightness at the mating portion of the connection counterpart.
- the male portion has a certain tolerance, i. it fits as it were to the geometry of the associated counter-plug portion of the connection counterpart something due to its elasticity or softness.
- the illustrated different materials may be advantageously provided for different purposes, for example, harder materials for positive contours and softer materials to provide their compliance.
- the softer or more resilient base material may also serve to compliantly form a portion of the fitting, for example, for compression upon insertion into a mating receptacle of the mating connector, or a widening capability when mated with a mating portion of the mating connector.
- Hardened and / or more tensile and / or more rigid materials which are adjacent thereto or preferably embedded in the softer section in the direction of a longitudinal axis, serve, 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 receive a holder for the suction hose rotatably, but with a high tensile strength.
- a form-fitting body which forms a latching contour, form-fitting contour, in particular rotational mold closing contour or the like, is made with a coating of a softer material.
- a form-fitting body is integral or homogeneous with the base body on which it is arranged, for example, the plug-in base body or the like.
- different hard and / or different tensile strength and / or different elastic materials are suitable to produce the connector as a whole or in sections as a multi-component component or form a connector with a multi-component section.
- the different materials of the connector are characterized for example by the following properties.
- a harder component or a harder material for example, has a hardness of 20-100 Shore D or 30-100 Shore D.
- the harder component can also be slightly softer overall, for example 20-70 Shore D, 30-70 Shore D or 30- Have 60 Shore D.
- the soft component or the softer material it is advantageous if it has a hardness of 40-100 Shore A, particularly preferably 50-90 Shore A. But also a hardness of 60-80 Shore A are possible without further ado.
- the one, for example, harder component or the 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 at most 800 N / mm 2 , expediently of not more than 700 N / mm 2 , particularly preferably of not more than 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 at least 80% or even at least 100%.
- a rigidity of the harder or stiffer material is suitably 1, 5 or twice to 3 times as high as the stiffness of the softer or less stiff material.
- the illustrated stiffening elements preferably have such a higher rigidity than the base material of the pipe section, even if the base material and the stiffening material are chemically similar or have, so to speak, the same chemical base (for example TPE, in particular TPE-S or TPE-U / TPU) or plug-in section.
- electrically conductive, 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 connector according to the invention may be electrically conductive. It is also possible that the connector as a whole or parts thereof are electrically non-conductive.
- the more elastic or softer material may be less electrically conductive than the harder material or vice versa.
- the second electrically conductive material protrudes at least there in front of the first, electrically less conductive material, for example the elastic material, where an electrical contact or an electrical connection with the connection counterpart is necessary or advantageous.
- the connecting piece has a first, electrically less conductive material than a second material, wherein the second material protrudes at least in sections before the first material for establishing an electrical connection with the connection counterpart or before the first material is arranged.
- the connector according to the invention may for example have a holder for a suction hose.
- the holder may be integrally provided on the tubular body, for example, corresponding receiving ribs for an amplification Have kungsspirale a suction hose.
- the holder is provided on the tubular body as a separate component, for example, rotatably received on the tubular body, but fixed tensile strength on the tubular body. It is also possible that the holder is fixed to the tubular body fixed, so immobile or with a small clearance.
- connection piece according to the invention and the connection counterpart expediently form a system of connection piece and connection counterpart.
- connection counterpart like the connection piece, can form an integral part of a hand-held machine tool or a vacuum cleaner or a suction hose.
- a connector according to the invention for example, have two or more plug-in sections.
- two plug-in sections may 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 diameter of the connection counterpart.
- Such plug-in sections can be nested coaxially, for example.
- the connecting 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-resistant 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 another component of the connecting piece, the holder is for example rotationally fixed and / or non-sliding and / or fixed.
- the Holder can also form an integral part of the connector, for example, be designed in one piece with the tubular body.
- the holder may be rotatable relative to the plug portion.
- the holder is expediently displaced relative to the plug-in section along the longitudinal axis. It is also possible that the holder, although displaceable relative to the longitudinal axis, but is rotatably mounted on the tubular body
- At least one form-fitting body of the connecting piece with which, for example, a rotational locking contour, a longitudinal locking contour or the like is formed, has a base material which at least partially covers, in particular sheaths, a material in the region of the form-fitting contour that is softer or more elastic relative to the base material. Furthermore, it is advantageous if this other material has a higher coefficient of friction than the base material. Thus, in any case, the positive connection is improved with a counter-form-locking contour which cooperates with the form-fitting contour.
- the connector according to the invention can also be a part of a
- a hand-held machine tool is understood in this case, a machine tool, for example, is portable, such as a chop saw. Preferred is the use, for example, in portable circular saws, milling machines or the like.
- the turn-molded contours ensure particularly firm and reliable hold.
- the connector may be fixed to the hand-held machine tool, but also designed to be removable.
- the connecting piece may comprise a plurality of components arranged one behind the other in the row direction, for example the plug-in section and a one-piece or multi-part tubular body.
- the multi-part tubular body can be configured such that it has two tubular body sections which are rotatable relative to each other and / or displaceable.
- the tubular body is divisible, for example, screwed together, latchable, has verklinkbare or otherwise releasably connectable to each other sections.
- connection piece can also be a separate connecting piece designed, for example, as an adapter, with which, for example, two tube sections of the suction tube can be connected to one another.
- the connecting piece according to the invention can be round, for example, in cross-section. But it is also possible that the connector has a polygonal cross-section. For example, it is conceivable that the connection piece still remains rotatable even in the case of a polygonal cross section, for example with at least 8 or 12 corners, ie relatively flat-angled corner regions, so that it can be rotated relative to the connection counterpart and yield, as it were, the elastic regions during the rotational movement.
- a plug-in section of a connection piece according to the invention can serve for inserting or plugging the connection counterpart along the longitudinal axis of the plug-in section, as it were the plug-in axis. Furthermore, it is possible that this plug movement is superimposed on a rotational movement, so that in principle the connection piece and the connection counterpart along the longitudinal axis of the plug section relative to each other, but simultaneously rotated relative to each other when the connection between the connection piece and connection counterpart is made. It is also a sequential connection possible, that is, the connection piece and the connection counterpart rotated in a sequential ellen movement relative to each other and are infected along the longitudinal axis or thru-axle to each other or detached from each other.
- FIG. 1 shows a side view of a connection piece with a partially illustrated suction hose, a cross-sectional view through the connector of Figure 1 along a section line AA in Figure 1, an exploded view of a variant of the connector of Figure 1, of which is shown in a plug-in section, a side view of a variant of the connector according to Figure 2, in the illustration a connection counterpart is plugged (cross-sectional view along a section line BB in Figure 5) and in the illustration according to a connector counterpart is inserted (cross-sectional view along a section line CC in Figure 5), an arrangement with the connector of Figure 5 in combination with several, different Connection counterparts, which are connectable to the connector and compatible, a vacuum cleaner with a suction hose, at the free end of a connector in the manner of example of the connector of Figure 5 is arranged, an enlarged detail of Figure 9 vo n the side, a front end of the suction hose of the vacuum cleaner according to Figures 9, 10, wherein a connecting counterpart is attached to the connector,
- Hand machine tool according to Figure 13 which is alternatively equipped with a fitting according to the invention, e.g. in the manner of the connection piece according to FIG. 19 or FIG. 5 or 8, another hand-held machine tool in the form of a sawing machine, to which a suction hose with a connection piece according to the invention is connected, the suction hose connection, ie the connection counterpart, of the hand-held machine tool according to FIG 15, an inventively designed first variant of the suction hose connection of the hand-held machine tool, which has a first connector according to the invention, a inventively designed second variant of the suction hose connection of the hand-machine tool with a second connector, approximately corresponding to the connector of FIG 5 or 8, the arrangement of Figure 18 with attached suction hose.
- connection piece expediently form system components of a system of connection piece and connection counterpart.
- connection counterparts if they have, for example radially inward and radially outward rotational form-fitting contours, according to the invention.
- a connector 10 for a suction hose 100 has, for example, a tubular body 1 1.
- a plug-in portion 50 connects, which is suitable for attaching a port counterpart 200 according to Figure 6 or for inserting a port counterpart 380 as shown in Figure 7.
- the tubular body 1 1 comprises a peripheral wall 12 which limits a receptacle 19.
- a holder 40 is used for the suction hose 100.
- the holder 40 which comprises, for example, a tubular holding body 41, is preferably received rotatably in the receptacle 19.
- a peripheral wall 43a of the holder 40 is rotatably supported, for example, on the inner side 14 of the peripheral wall 12 of the tubular body 1 1 rotatably.
- 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 with its not shown, in particular spirally in reinforcing ribs, can be screwed.
- a front, free end face 42 of the holding body 41 and the holder 40 is located on a bottom 15 of the tubular body 1 1 frontally.
- the holder 40 is fixed by a holding element 45 on the tubular body 12.
- a support flange or a retaining 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 retaining projection 47 bears against 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 member 45 and on the other hand, the bottom 15 of the receptacle 19 is held in a sandwich and / or sliding.
- latching projections or retaining projections 49 are provided which protrude radially outward in front of the holding element 45 and its base body or holding body, and engage in locking receptacles or holding receptacles 13 of the tubular body 12.
- the retaining projections 49 are 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 retaining element 45 from the tubular body 12.
- the tubular body 1 1, the holding structure 43 may include integrally, and therefore so the suction hose 100 can receive and hold directly.
- the tubular body 1 1 and / or the holding element 45 and / or the holder 40 are preferably made of a relatively hard plastic material, such as polypropylene. As a result, the necessary for holding the suction hose 100 strength is readily ensured. But it is also possible that, for example, the holding element 45 and the tubular body 1 1 are made of a harder material than the holder 40 for the suction hose 100.
- the base material of the male portion 50 is a thermoplastic elastomer.
- the plug portion 50 has a relatively high bending strength, in any case a higher bending strength than would be the case if only thermoplastic elastomer were used.
- a stiffening structure 20 is provided with a plurality of stiffening elements 21.
- the material of the stiffening elements 21 is harder and / or more tensile and / or bending resistant and / or stiffer than the base material of the plug portion 50.
- the material of the stiffening elements 21 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 stiffened by the stiffening elements 21 portion of the connector, for example, the plug portion 50th
- the plug-in section 50 forms a pipe section 35.
- the plug section 50 is suitable for plugging or plugging in a complementary GE plug-in section and is on the one hand elastically yielding, so as to enable an optimal form-fit and optimum tightness with the connection counterpart, on the other hand transversely to the longitudinal axis L or thru axle relatively stiff. Only marginally it should be noted that, of course, the tubular body 1 1 in the manner of the male section 50 or pipe section 35 may be configured, although that is not shown in the drawing, so for example may consist of a relatively soft material stiffening elements.
- the base material of the plug-in portion 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 lamellae from the tube body 12 forming a connecting section 25 or connecting body of the stiffening elements 21 in the direction of the plug-in section 50. Between the stiffening elements 21, a circumferential distance 24 is provided in each case, so that the stiffening elements 21 have a spacing in the circumferential direction.
- the stiffening elements 21 can thus 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 increased if the plug-in section 50 is plugged onto a respective connection counterpart 300 or plugged into a connection counterpart 200.
- the mobility or elasticity of the plug-in portion 50 is further improved by the fact that the free end portions 23 of the stiffening elements 21 are narrower than the foot portions or other longitudinal end portions 22 which are connected to the tubular body 12.
- the tubular body 12 forms a connecting body for the stiffening elements 21, so that they are connected to one another at a longitudinal end, at their free longitudinal end regions 23 in FIG Sense of enlargement or reduction of the cross section of the plug portion 50 towards each other or away from each other are movable.
- the Versteifungselennente 21 are round in cross-section, wherein the radius corresponds approximately to the radius of the tubular body 1 1.
- the non-planar in cross-section, i. Rounded or angular contour of the stiffening elements 21 acts in the sense of stiffening.
- the stiffening elements 21 and the tubular body 1 1 are made for example of polypropylene, at least one of the initially mentioned relatively hard materials.
- the inner component 51 and the outer component 52 are softer and more elastic, for example made of rubber or of an elastomer, in particular a thermoplastic elastomer.
- the inner component 52 and the outer component 51 of the male portion 50 integrally receive the stiffening structure 22, that is, the stiffening members 21 are sandwiched, as it were, 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 passages are provided, in which, for example, first the inner component 52 is injection-molded or integrally formed on the reinforcing 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 integrally the tubular body 1 1, and then the outer component 51 are injected or poured.
- webs 53 form, which fill in the interspaces or distances between the reinforcing elements 21, that is, the circumferential distances 24.
- wall sections 54 which cover the so to speak radially inner side of the stiffening elements 21.
- the wall portions 54 are compared to the Webs 53 a little thinner, for example like a skin. However, they preferably completely cover the stiffening elements 21 on the inside, so that they are covered with the elastic material of the interior component 52 in the region of a plug-in receptacle 55, which they define radially on the outside.
- webs 53 are expediently likewise provided, between which wall sections 57 are located.
- the wall sections 57 cover the stiffening elements 21 on the outside, thus forming 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 each other and fill the gaps or spaces between the stiffening elements 21.
- the webs 53 are elastically yielding due to the elastic material of the outer component 51 and the inner component 52, so that the stiffening elements 21 which are leaf-like or lamellar can move towards or away from each other at least in the region of their free longitudinal ends 23. This mobility is further facilitated by the fact that the transverse distance 24 between the stiffening elements 21 in the region of the free longitudinal ends 23 is greater than in the region of its other longitudinal end regions or foot regions 22.
- the plug portion 50 is completely drawn, i. the inner component 52 in the already connected to the outer component 51 state.
- the base material of the plug-in portion 50 connects as homogeneously as possible.
- the plug-in portion 50 is molded or cast as a whole on the stiffening structure 20 and the tubular body 1 1 (in an injection or casting process). In any case, 60 cavities 59 are provided for the stiffening elements 21 at the plug portion 50 and its plug-in base body.
- connection element 505 can be inserted 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 annular, in particular circumferential, longitudinal latching contours 61, for example grooves 62. These allow longitudinal locking with longitudinal-latching counter-contours 302 on a plug-in section 301 of the connection counterpart 300, which can be inserted into the plug-in receptacle 55.
- the connecting counterpart 300 is connectable to a suction hose, a hand-held power tool or the like, for example, by means of clamping arms or holding arms 303, between which expediently spacings 304 are present.
- a thread or a latching structure 305 for screwing or latching with a connecting element, in particular a suction hose or a hose, is located on the retaining arms 303
- Hand machine tool or a vacuum cleaner This is only to be understood by way of example, since the plug-in portion 301 is essential here, while the other side 307 may be designed quite differently with, for example, the holding arms 303. For example, it is possible that the side or portion 307 forms an integral part of a hand machine tool, a vacuum cleaner, or the like.
- connection counterpart 300 may be a component consisting, for example, of polypropylene or another hard plastic.
- the elastically yielding plug-in portion 50 of the connector 10 gives something when inserting the plug-in portion 301 of the connection counterpart 300, for example in the sense of expansion, 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 Pull direction or maintain a longitudinal axis L of the plug portion 50.
- an optimal frictional connection is provided, because expediently the base material of the plug-in section 50 has a high coefficient of friction, in any case a higher coefficient of friction than the material of the tubular body 11.
- connection counterpart 350 can be inserted into the plug-in receptacle 55, which has rotationally positive counter contours 352 at its plug-in section 351. These cooperate with rotationally conforming contours 75 of the connecting piece 10, namely with a positive locking projection 26 projecting inwardly into the plug-in receptacle 55.
- the connecting counterpart is shown in FIG.
- a front section of a connecting piece 380 which corresponds approximately to the connection piece 300, to have rotationally positive counter contours 352, which is indicated in FIG.
- the rotational form-fitting counter-contours 352 can be brought into engagement with the rotational-form-locking contours 75 or the form-fitting projections 26 of the connecting piece 10.
- the interlocking protrusions 26 could, for example, be formed integrally from the base material of the plug-in base body 60, ie, for example, from the inner component 52. In the present case, however, the configuration is such that the interlocking protrusions 26 are arranged on the reinforcing elements 21 and through recesses 58 of the inner component 52 in the Plug-in receptacle 55 of the connector 50 protrude. There they form cams, which can engage with the rotary mold counter contours 352 or later described Drehform gleichkonturen 70.
- the rotational form-fitting counter-contours 352 basically correspond in terms of geometry and shape to rotational-form-locking contours 70 on the outer circumference of the plug-in section 50 or of the connecting piece 10, which will be explained in more detail.
- the form-fitting projections 26 may include, for example, form-fitting parts 27 and 28, which are arranged on adjacent stiffening elements 21.
- the interlocking parts 27 and 28 may be separate components as shown in FIG. 3, but interconnected by the inner component 52 or the outer component 51.
- a section with elastic plastic or the like can be between the positive-fit parts 27 and 28, a section with elastic plastic or the like.
- a preferred exemplary embodiment is indicated in FIG. 2, namely, where form-fitting parts 27 'and 28' are connected, as it were, to form a common form-fitting projection 26 with a section 26 '.
- the positive locking projection 26 is thus formed on the basis of two positive-locking parts 27 'and 28', which are arranged on adjacent stiffening elements 21, but the relative movement of the stiffening elements 21 towards each other or away from each other due to the recess 29 less hinder as it would do a so-to-say massive form-locking projection 26.
- the recess 29 is suitably filled with elastic material, such as the inner component 52, but could also be free, so quasi contain only air.
- slit-like recesses 29 ' can also be provided in a respective form-fitting projection 26.
- the positive-fit projections 26 protrude inwards through the recesses 58 in front of the inner component 52 into the plug-in receptacle 55.
- the positive locking projections 26 are formed of a relatively hard material, such as polypropylene, which ensures high dimensional accuracy and resilience.
- the positive-fit projections 26 can also be encased at least partially by the material of the plug-in base body 60, which is indicated in FIG.
- the positive-fit projections 26 are at least partially or completely covered next to the recess 58 or in the region of the recess 58 of wall sections 58 ', for example of the inner component 52.
- the relatively soft material of the wall sections 58 ' increases the frictional engagement with associated counter-form-fitting contours, for example the rotational form-locking contours 70, which will be explained below.
- the rotational form-locking contours 70 include a circumferential rotational-form-locking contour 71, which are suitable for engagement, for example, of the form-fitting projection 26.
- the form-fitting projection 26 forms, for example, a
- Rotary positive locking body 75
- the connector 10 can be positively connected and locked with a similar, so to speak compatible connector 10 by the later-described plug-in rotational movement.
- connection with a connection counterpart 200 which is shown in cross section in FIG. 6, is explained below.
- the connecting counterpart 200 has, for example, on a circumferential wall 201 delimiting its plug-in receptacle 255 in the plug-in receptacle 255 inwardly projecting rotationally positive counter contours 276, for example cams, projections or the like.
- a respective rotational locking counter contour 276 can be inserted through a longitudinal guide contour 80 in the designedssurform gleichkontur 71. This happens, for example, when the connection counterpart 200 is plugged onto the connecting piece 10, namely its plug-in portion 50.
- the rotational form-fitting counter-contour 276 is designed, for example, as a substantially block-shaped block or bump. However, the functionality of the rotational form-fitting counter-contour 276 is also provided by each of the form-fitting projections 26, wherein the form-fitting projections 26, which form Drehform gleichkonturen 75 are even more optimally adapted to the inner contour or positive locking contour of the designedsnchform gleichkontur 71.
- the longitudinal guide contour 80 is designed, for example, as a slot or guide channel.
- the rotational-form-locking contour 75 or the rotational-form-locking counter-contour 276 can extend along sidewalls or side surfaces 81, 82 of the longitudinal guide contour in the direction of the peripheral rotational-form-locking contour 71 or out of this out along the longitudinal axis L to be moved.
- the longitudinal guide contour 80 and the circumferential rotational contour contour 71 are, for example, approximately rectangular or hook-shaped relative to one another.
- the distances between the side walls 81, 82 are preferably so far that the rotational locking contour 75, namely a positive locking projection, with its side surfaces 78, 79 still some play on the side walls or side surfaces 81, 82, but a longitudinal guide in the direction of the longitudinal axis L learns.
- a side surface or side wall 72 and one of these opposite side wall or side surface 74 of the calculatorssurform gleichkontur 71 which are configured as a groove or slot, preferably run in the direction of an end wall 73, so the end of the calculatorsnchform gleichkontur 71, toward each other, so that the calculatorsnchform gleichkontur in the region of the end or the end wall 73 is slightly narrower than at its opening to the longitudinal guide contour 80.
- the rotational positive locking body 75 or the rotary positive locking counter contour 276 are thus introduced into the longitudinal guide contour 80 as part of a plug movement along the longitudinal axis L.
- a marking 84 or an index facilitates the insertion of the rotary positive locking body 75 or the rotary positive locking counter contour 276.
- the form-fitting body 75 or the rotational form-fitting counter-contour 276 strike at the end of this insertion movement along the longitudinal axis L at the longitudinal end region 83 of the longitudinal guide contour 80. Subsequently, the connecting piece 10 and the connection counterpart 275 or a complementary, the form-fitting body 75 exhibiting fitting 10 relative to each other to rotate about the longitudinal axis L, wherein the form-fitting body 75 or the Drehform gleich literallykontur 276 is then rotated into the groove orparticularlysfitform gleichkontur 71 inside.
- the rotational movement ends when the positive-fit body 75 or the Drehform gleichhafenkontur 276 at the LNicolsend Scheme or the end wall 73 of the designedsfitform gleichkontur 71 abuts. This rotary end position is assigned a further mark 85.
- the form-fitting surfaces or side surfaces 76, 77 associated with the side walls 72, 74 preferably extend obliquely relative to one another in accordance with the position of the side walls 72, 74, which completes the already mentioned wedge action or clamping when the rotation end position or the rotational form closure is completed is reached, additionally reinforced or improved.
- the side surface 76 and the side wall 72 are configured as inclined surfaces 76a, 72a or have inclined surfaces 76a, 72a which, upon a relative rotation of the connection piece 10 with a connection counterpart, for example a similarly designed connection counterpart 10 (see FIG. 2) or the connection counterpart 200, ie when the two components are rotated about the longitudinal axis L relative to each other, cause an axial displacement or displacement of the two components along the longitudinal axis L to each other.
- the operator therefore only has to turn the connection piece 10 or the connection counterpart in order to displace the two components along the longitudinal axis L relative to one another, in particular to clamp them. It is understood that one of the inclined surfaces 76a or 72a is sufficient for such a shifting effect or a clamping effect.
- a locking contour 86 for example, a rib 87
- a locking contour 86 is provided between the longitudinal guide contour 80 and the peripheral rotary mold closing contour 71.
- the rotational form-fitting counter-contour 276 or the rotational-locking contour 75 is to be moved out of the longitudinal guide contour 80 into or out of the circumferential rotational-locking contour 71 in the direction of the longitudinal guide contour 80, it must, as it were, be moved past the latching contour 86.
- the rib 87 is preferably made of the softer or more elastic material of the male portion base body 60, so that it is elastically yielding and thus allows the movement of the rotary mold closing contour 75 or the rotary mold closing counter contour 276 past her.
- longitudinal catch contours are also provided on the outer circumference of the plug-in section, namely longitudinal catch contours 90.
- the longitudinal catch contours 90 comprise, for example, a circumferential groove 91 which, as it were, crosses the longitudinal guide contours 80.
- a so-called imaginary curve 92 of the circumferential groove 91 is indicated in FIG.
- the circumferential groove 91 thus communicates with the longitudinal guide contours 80 (3 longitudinal guide contours 80 are at an angular distance, preferably an equal angular distance, provided to each other), which should not be essential here.
- a latching counter contour for example in the manner of a rib structure, an annular, radially inwardly into a socket of a connection counterpart protruding latching projection, a hook or the like, are snapped to the connector 10 to connect with the connection counterpart, 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.
- static electricity can be derived.
- a relatively hard plastic is suitable to be electrically conductive. Then can be produced in a particularly advantageous manner by the multi-component embodiment of the connector 10 in the embodiment of Figures 1 and 2, the necessary electrical conductivity, namely, if corresponding recesses are provided on the more elastic component or soft component, the components of the harder component, the is electrically conductive, are penetrated.
- an electrical contact assembly 30 with electrical contact portions 31, 32 is provided, 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 may be configured as an electrically conductive component.
- further electrical contact surfaces 33 are preferably provided, for example in the area of the rib structure, so that inside the plug receptacle 55, on the one hand, the form-fitting projections 26, on the other hand, these further contact surfaces 33 are available for establishing an electrical connection.
- the locking contour 86 or rib 87 may be formed by a relatively hard component of the connector 10, for example, as a projection on one of the stiffening elements 75, which protrudes in front of the outer component 51 may be configured.
- connection piece 10 3 a plurality of circumferential rotational form-closure contours and possibly a plurality of longitudinal guide contours communicating therewith are provided.
- connecting piece 10 3 such configurations are provided, for example, at a uniform angular distance. In this sense, 3 are arranged at the same angular distance form-fitting projections 26 and Drehform gleich- contours 75 are provided.
- rotational form-locking contours 70 form, so to speak, external rotational-form-locking contours
- the rotational-form-locking contours 75 are, so to speak, internal rotational-form-locking contours.
- connecting counterpart 200 which can also be considered as a connector in the context of the invention
- both inside and outside in the region of the plug receptacle 255 each Wheelform gleichkonturen same kind, namely the cam-like Drehform gleich literallykonturen 275, 276 are present ,
- three inner rotational-form-fitting counter-contours 276 arranged at the same angular distance from one another and outer rotational-form-fit counter-contours 275 are provided in each case.
- connection counterpart 52 has around a peripheral wall 278, which limits a plug-in receptacle 255, but does not comprise Drehform gleichkonturen or Drehform gleich brieflykonturen. This is typically also the case with known hand-held machine tools, for example in the variant illustrated in FIG. 16.
- the plug-in section 50 can also be plugged into the plug-in receptacle 255 of the connection counterpart 250 and is in this case compressible, so that it optimally adapts to the inner contour of the plug-in receptacle 255.
- the fitting according to the invention has been described as an e.g. shown arranged on the suction hose 100 component. But it can also be part of a vacuum cleaner or a hand-held machine tool, which will become apparent below.
- a connection piece 10 for example, at the free end of a suction hose 100 of a vacuum cleaner 600 according to FIG. 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 attached to the suction hose connection 605.
- Hand machine tool 700 or 500 provided other connection of the suction hose 100 is provided with the connection piece 10 ( Figure 10) wherein there existing Drehform gleichkonturen 70 and additionally the locking contour 86 ensure optimum hold of the connected hand-machine tool.
- the connector 10 may also be used e.g. only the connection counterpart 52 are plugged.
- the inventive fitting 10 is provided ( Figure 12). This can then be used, for example, to connect a connection be provided Yutschs 200 or a similar fitting 10 to allow better grip of the suction hose 100.
- a suction hose 100 with a connection counterpart 250 is connected to the connection piece 10 of the vacuum cleaner 10.
- a manual machine tool 700 for example a grinding machine, has a drive motor 702 for driving a grinding tool 703.
- dust is generated, which is guided through a dust guide channel 704, which passes through the housing 701, in the direction of a dust outlet 705 becomes.
- a connector 10 according to the invention can be connected, for example, be attached to the dust outlet 705 ( Figure 13).
- FIG. 14 it is also possible, as shown in FIG. 14, for example, that a connecting piece 707 having a rotationally positive-locking contours 75 is provided.
- the rotational form-locking contours 75 can, for example, be brought into engagement with the rotational-form-locking contours 70 of a connecting piece 10 according to the invention.
- a conventional connecting piece may be provided as a connection counterpart 505.
- Its peripheral wall 506 defines, 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, FIG. 19.
- 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, FIG. 19.
- Hand tool 500 arranged motor 502 a tool 503, for example, a saw blade to.
- connection counterpart 550 at the end of a dust guide channel 504 of FIG. 15 it is provided that a connection counterpart 550 at the end of a dust guide channel 504 of FIG. 15
- Hand machine tool 500 is arranged. For example, dust, shavings or the like generated during operation of the hand-held power tool 500 flow through the dust-carrying passage 504.
- the counterpart 550 are Drehform gleichmenturen 576 radially inward and Drehform gleichkonturen 575 radially outwardly arranged on a peripheral wall 577 which limits a Stecêtnah- me.
- the connecting piece 10 thus Drehform gleichkonturen are provided which ensure a particularly firm hold on train with respect to the longitudinal axis L.
- connection counterpart 550 can consist exclusively of relatively hard plastic and represents a connection piece in the sense of the invention, since it has both radially inward and radially outward at its plug-in section rotationally conforming contours or rotationally conforming counter contours.
- Hand machine tool 500 a fitting 10 arranged, e.g. fixed or detachable.
- This preferably consists of a hard component and a soft component, as explained, and / or has at its plug portion both the longitudinal guide contour and 80 and the rotational form-fitting contours 70, so that a particularly firm grip, for example, the connection counterpart 200 is possible.
- the peripheral wall 201 may be made of a relatively hard plastic, such as polypropylene.
- the plug-in section 50 to be inserted into the plug-in receptacle 255 in the interior of the peripheral wall 201 consists of a softer plastic, at least on its outer periphery, whereby a particularly good frictional engagement and, in addition, a high density can be achieved.
- the peripheral wall 201 is also made of soft plastic, in particular the same plastic material, as the plug portion 50.
- the peripheral wall 201 is stiffened by stiffening elements in the nature of the stiffening elements 21. For example, strip-shaped stiffening elements 221 are provided.
- the stiffening elements 221 an oblique inclination with respect to the longitudinal axis L, so unlike the stiffening elements 21 are not parallel to Longitudinal axis L.
- the connecting counterpart 200 forms both in the embodiment with hard peripheral wall 201, so hard plug portion 250, as well as with soft or stiffened with stiffening elements 221 or 21 stiffened plug portion 250 each an optimization over known fittings or terminal counterparts.
- the connection counterpart 200 may a component, for example, the hand-held power tool 500 or 700 or the vacuum cleaner 600, for example, in each case as a connection for the suction hose form.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Description
Claims
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 (de) | 2014-12-19 | 2015-12-17 | Saugschlauch-anschlussstück |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3232890A1 true EP3232890A1 (de) | 2017-10-25 |
EP3232890B1 EP3232890B1 (de) | 2021-12-08 |
Family
ID=54884060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15813054.2A Active EP3232890B1 (de) | 2014-12-19 | 2015-12-17 | Saugschlauch-anschlussstück |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3232890B1 (de) |
DE (2) | DE102014119244A1 (de) |
DK (1) | DK3232890T3 (de) |
WO (1) | WO2016097103A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014119249A1 (de) | 2014-12-19 | 2016-06-23 | Festool Gmbh | Saugschlauch-Anschlussstück |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR746630A (fr) * | 1932-11-30 | 1933-06-02 | Joint de tuyaux | |
BE562806A (de) * | 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" |
-
2014
- 2014-12-19 DE DE102014119244.3A patent/DE102014119244A1/de not_active Withdrawn
-
2015
- 2015-12-17 EP EP15813054.2A patent/EP3232890B1/de active Active
- 2015-12-17 DE DE112015005664.5T patent/DE112015005664A5/de active Pending
- 2015-12-17 WO PCT/EP2015/080159 patent/WO2016097103A1/de active Application Filing
- 2015-12-17 DK DK15813054.2T patent/DK3232890T3/da active
Also Published As
Publication number | Publication date |
---|---|
EP3232890B1 (de) | 2021-12-08 |
WO2016097103A1 (de) | 2016-06-23 |
DK3232890T3 (da) | 2022-01-10 |
DE112015005664A5 (de) | 2017-08-31 |
DE102014119244A1 (de) | 2016-06-23 |
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