EP3386682A1 - Dispositif de connexion - Google Patents

Dispositif de connexion

Info

Publication number
EP3386682A1
EP3386682A1 EP16806072.1A EP16806072A EP3386682A1 EP 3386682 A1 EP3386682 A1 EP 3386682A1 EP 16806072 A EP16806072 A EP 16806072A EP 3386682 A1 EP3386682 A1 EP 3386682A1
Authority
EP
European Patent Office
Prior art keywords
hose
suction hose
adapter
connecting device
outlet opening
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.)
Withdrawn
Application number
EP16806072.1A
Other languages
German (de)
English (en)
Inventor
John Van Taack-Trakranen
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.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP3386682A1 publication Critical patent/EP3386682A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • B23Q11/0046—Devices for removing chips by sucking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/0036—Joints for corrugated pipes
    • F16L25/0045—Joints for corrugated pipes of the quick-acting type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/005—Protection of pipes or objects of similar shape against external or internal damage or wear specially adapted for the ends of pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • B23Q11/0071—Devices for removing chips dust collectors for hand tools

Definitions

  • the present invention relates to a connection device for connecting a suction hose to a machine tool.
  • the connecting device is equipped with a pipe section which has a machine tool-side inlet opening, a hose-side outlet opening and a tube curvature located therebetween.
  • the present invention also relates to a machine tool with such a connection device.
  • Connecting devices of the type mentioned are basically known from the prior art. They are used to connect a dust-generating machine tool, such as a wall slot device or the like, to a suction device via a suction hose.
  • connection devices known from the prior art have the disadvantage that during operation of the machine tool, through which vibrations typically occur, the suction hose can break or become detached from the connection device. This can lead to an undesirable dust pollution of the environment and a health burden on the user of the machine tool.
  • the object is achieved in that the pipe section has a located between the pipe bend and the hose-side outlet opening guide portion in which a free end of the suction hose is received such that the free end of the suction hose over a guide length, the at least half a hose diameter corresponds to, is guided within the guide section straight.
  • the connection device has an end piece arranged at the free end of the suction hose and, preferably spaced therefrom by a distance, an adapter counterpart arranged on the suction hose.
  • the tail is complete and the adapter counterpart at least partially disposed within a volume defined by the guide portion.
  • slipping out of the suction hose from the guide portion is avoided by cooperation of the end piece and the adapter counterpart, wherein at the same time a rotation of the suction hose in the circumferential direction is possible.
  • connection device favors a connection between the machine tool and suction hose vibration, the connection is robust with respect to a lateral and axial pulling on the suction hose and the compound simultaneously provides a maximum possible Absaugquerites.
  • the adapter counterpart is attached to the hose-side outlet opening releasably.
  • a detachable attachment is preferably realized by means of a releasable by rotation latch unit. This may be formed for example as a bayonet connection or the like. It has proved to be advantageous if the adapter counterpart, as part of the latching unit, has a stepped rim, which preferably corresponds to a suitably designed hose-side outlet opening. Alternatively or additionally, the adapter counterpart can be designed such that it is held on it, for example by means of a press fit in the region of the hose-side outlet opening.
  • the adapter piece, secured against axial movement relative to the suction hose is arranged on the suction hose.
  • the adapter counterpart is secured exclusively in its axial direction of movement relative to the suction hose and in particular radially, that is, in the circumferential direction with respect to the suction hose freely movable or rotatable.
  • the adapter mating piece has an outer sleeve which is at least partially fitted to the straight guide section and / or to the hose-side outlet opening.
  • an interference fit between the adapter mating piece and the guide section or its hose-side outlet opening can be realized via the outer sleeve.
  • the adapter counterpart preferably arranged coaxially with the outer sleeve, has a cone-shaped inner sleeve.
  • the Cone-shaped inner sleeve the widest diameter of which is preferably located on a side facing away from the straight guide portion of the adapter counterpart, for example, an alternative suction hose having a terminal cone adapter can be attached to the adapter counterpart.
  • suction hoses with a smaller diameter can be attached to the connection device.
  • the diameter of the end piece is greater than the inner diameter of the adapter counterpart. More specifically, the smallest outer diameter of the end piece is preferably larger than the largest inner diameter of the adapter counterpart. It has proved to be advantageous if the diameter of the end piece is at least twice as large as the width of the end piece in the axial direction.
  • the end piece is cylindrical-shaped. More preferably, the tail has an internal thread for screwing on the suction hose.
  • the tube curvature has a curvature between 100 ° and 120 ° and preferably of 1 10 ° and / or the guide portion, the tail and the adapter counterpart are arranged coaxially to each other.
  • a curvature between 100 ° and 120 °, and preferably of 1 10 °, has proved to be particularly advantageous because this allows the dust to be passed through the tube curvature particularly well.
  • such a curvature proves to be particularly gentle on the material for the inside of the pipe bend, as a result, the transported dust only a relatively flat attack surface is offered.
  • the object is achieved by a machine tool with a connection device described above.
  • Fig. 1 is a schematic representation of a connection device according to the invention
  • Fig. 2 shows a preferred embodiment of a connecting device in perspective
  • Fig. 3 is a sectional view A-A of the view of Fig. 2;
  • Fig. 4 shows an end piece of the connecting device according to the invention in different
  • Fig. 5 shows an inventive adapter counterpart in different views
  • connection device 6 is a sectional view through a further embodiment of a connection device according to the invention.
  • FIG. 7 is a perspective view of a connecting device, wherein the
  • the connecting device 100 for connecting a suction hose 200 to a machine tool 300 shown here schematically.
  • the machine tool 300 may be, for example, a slot device.
  • the connecting device 100 has a pipe section 90, which in turn has a machine tool-side inlet opening 91, a hose-side outlet opening 93 and a tube curvature 95 located therebetween.
  • the pipe bend 95 has a curvature of 90 °.
  • the connection device 100 is connected to the machine tool 300 via the machine tool-side inlet opening 91.
  • the pipe section 90 has a located between the pipe bend 95 and the hose-side outlet opening 93 guide portion 97, the present is straight.
  • this guide portion 97 a free end 210 of the suction hose 200 is received.
  • the free end 210 of the suction hose 200 is guided within the guide section 97 via a guide length FL, which in this case corresponds approximately to six times the half hose diameter SD.
  • connection device 100 has an end piece 70 arranged at the free end 210 of the suction hose 200 and, spaced therefrom by a distance AS, an adapter counterpart 80 arranged on the suction hose 200.
  • the distance AS is about one and a half times as large as the hose diameter SD.
  • the guide length FL is greater than the distance AS between end piece 70 and adapter counterpart 80.
  • the end piece 70 is complete and the adapter counterpart 80 is arranged in sections within a volume defined by the guide section 97.
  • Fig. 2 shows a perspective view of a connecting device 100 with attached suction hose 200. Good to see is a plunger-shaped inlet opening 91, the in a corresponding and not shown here opening of the machine tool 300 can be inserted.
  • the pipe section 90 On the opposite side, the pipe section 90 has an outlet opening 93. Between the inlet opening 91 and the hose-side outlet opening 93, the pipe section 90 has a pipe bend 95 and the straight guide section 97.
  • the adapter counterpart 80 is received at least in sections in the guide section 97.
  • the adapter counterpart 80 is releasably attached to the hose-side outlet opening 93 of the connecting device 100 by means of a releasable by rotation latch unit 50, which in the present embodiment has a arranged on the adapter counterpart 80 stepped rim 55.
  • the hose-side outlet opening 93 is also stepped.
  • the stepped rim 55 on the adapter counterpart 80 can also be removed, for example, from FIG. 5.
  • a corresponding graduation 55 'of the hose-side outlet opening 93 both of FIG. 2 and shown in Fig. 7. Illustrated on the right side in FIG. 2 is a section line A-A whose sectional view A-A will now be explained in more detail with reference to FIG.
  • the pipe bend 95 of the pipe section 90 is clearly visible.
  • the guide portion 97 in which a free end 210 of the suction hose 200 is guided over a guide length FL.
  • An end piece 70 is arranged at the end at the free end 210 of the suction hose 200.
  • the adapter mating piece 80 is arranged at the suction hose 200 at a comparatively small distance AS axially spaced therefrom. Passed through the adapter counterpart 80 is the suction hose 200.
  • the internal thread 75 of the end piece 70 which serve to screw the suction hose 200 to its axial securing within the end piece 70.
  • the adapter counterpart 80 On the right side of the guide portion 97, the adapter counterpart 80 can be clearly seen, which is pushed over the suction hose 200.
  • a corresponding, not shown, stop element in the form of a ring may be attached behind the mating adapter 80 in the direction of the hose R. Such a stop element is to be firmly connected to the suction hose 200 for this purpose.
  • the adapter counterpart 80 is detachably attached to the guide portion 97, so that the suction hose 200 is indeed a total of radially rotatable in the direction of the indicated direction of rotation D, but axially fixed with respect to the guide portion 97.
  • FIG. 4 shows various views of the end piece 70.
  • a section along the diameter DE is shown in FIG. 4A. Good to see the radially outwardly stepped inside grooves 75 for receiving the suction hose, not shown here.
  • the diameter DE of the end piece 70 in the presently illustrated embodiment is approximately twice as large as the width BE of the end piece 70.
  • Fig. 4B shows a perspective view of the end piece 70 for further clarification of the profile grooves 75. Finally, a section is shown radially through the end piece 70 in Fig. 4C. Good to see is the cylindrical ring-shaped design of the tail 70th
  • FIG. 5 shows an adapter counterpart 80 according to the invention, the outer surface of which is also clearly visible in FIGS. 2 and 3, in various representations.
  • FIG. 5A initially shows the adapter counterpart 80 in a perspective view.
  • a cylindrical outer sleeve 83 of the adapter piece 80 which is fitted to the hose-side outlet opening (see Fig. 6) by means of transition fit.
  • a stepped rim 55 is formed, which constitutes a part of the latching mechanism, which is provided for releasably securing the adapter counterpart 80 at the hose-side outlet opening or the guide portion.
  • On the outer sleeve 83 belonging to the locking unit 50 locking lug 51 is positioned, which is designed as an elastic joining part and with the corresponding receptacle 52 of the latch unit 50 is positively connected.
  • a cone-shaped inner sleeve 85 is arranged coaxially with the outer sleeve 83. The conical configuration is particularly well visible in the lower view 5D or in FIG. 6.
  • FIG. 6 shows a section through an exemplary embodiment of a connection device 100 according to the invention, with clarity being given to the illustration of the invention Suction hose 200 has been omitted. Good to see that the straight guide portion 97 of the pipe section 90 projects into the adapter counterpart 80 at least in sections.
  • the adapter mating portion 80 has an outer sleeve 83 having an outer diameter AD fitted to the inner diameter ID of the guide portion 97.
  • a transition fit between the guide portion 97 and the outer sleeve 83 is assumed, so that the adapter counterpart 80 is easy to insert into the guide portion 97.
  • the adapter piece 80 is detachably arranged by means of the already described by rotation releasable latching unit 50 at the hose-side outlet opening 93 of the pipe section 90, more precisely the guide section 97.
  • both the cone-shaped inner sleeve 85 and the outer sleeve 83 have a smooth surface on the inside.
  • the smallest free diameter FD of the cone-shaped inner sleeve 80 corresponds to the tube diameter SD, which is shown for example in FIG.
  • FIG. 7 shows a connection device 100 without an adapter counterpart 80.
  • a receptacle 52 of the latching unit 50 arranged on the inner circumference of the outlet opening 93, which is associated with the elastic latching lug 51 (see FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Exhaust Silencers (AREA)

Abstract

L'invention concerne un dispositif de connexion (100) destiné à connecter un tuyau d'aspiration (200) à une machine-outil (300). Le dispositif de connexion comprend un tronçon de tube (90), qui présente une ouverture d'entrée (91) côté machine-outil, une ouverture de sortie (93) côté tuyau et un coude (95) intercalé. Le tronçon de tube (90) présente une partie de guidage (97) entre le coude (95) et l'ouverture de sortie (93) côté tuyau, dans laquelle partie de guidage une extrémité libre du tuyau d'aspiration (200) est reçue de telle manière que l'extrémité libre (210) du tuyau d'aspiration (200) est guidée de façon rectiligne à l'intérieur de la partie de guidage (97) sur une longueur de guidage (FL), qui correspond au moins à la moitié du diamètre de tuyau (SD). Le dispositif de connexion (100) présente pour ce faire un embout (70) disposé sur l'extrémité libre (210) du tuyau d'aspiration (200) et, de préférence espacé de celui-ci d'une distance (AS), un adaptateur complémentaire (80) disposé sur le tuyau d'aspiration (200). L'embout (70) est disposé en totalité et l'adaptateur complémentaire (80) est disposé au moins par endroits à l'intérieur d'un volume défini par la partie de guidage (97).
EP16806072.1A 2015-12-11 2016-12-05 Dispositif de connexion Withdrawn EP3386682A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15199475.3A EP3178614A1 (fr) 2015-12-11 2015-12-11 Dispositif de raccordement
PCT/EP2016/079729 WO2017097698A1 (fr) 2015-12-11 2016-12-05 Dispositif de connexion

Publications (1)

Publication Number Publication Date
EP3386682A1 true EP3386682A1 (fr) 2018-10-17

Family

ID=54979388

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15199475.3A Withdrawn EP3178614A1 (fr) 2015-12-11 2015-12-11 Dispositif de raccordement
EP16806072.1A Withdrawn EP3386682A1 (fr) 2015-12-11 2016-12-05 Dispositif de connexion

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP15199475.3A Withdrawn EP3178614A1 (fr) 2015-12-11 2015-12-11 Dispositif de raccordement

Country Status (4)

Country Link
US (1) US20190000290A1 (fr)
EP (2) EP3178614A1 (fr)
RU (1) RU2018125163A (fr)
WO (1) WO2017097698A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3110376B1 (fr) * 2020-05-20 2022-06-17 Abpool Coude articulé pour dispositif de nettoyage d’une piscine
DE102020208343A1 (de) 2020-07-03 2022-01-05 Robert Bosch Gesellschaft mit beschränkter Haftung Adapter sowie Handwerkzeugmaschinensystem mit einer Handwerkzeugmaschine und einem Adapter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473923A (en) * 1982-05-10 1984-10-02 Dayco Corporation Vacuum cleaning tool adapter with electrical control means
JP2514706B2 (ja) * 1988-12-29 1996-07-10 株式会社日立製作所 電気掃除機
ITMI20020950A1 (it) * 2002-05-06 2003-11-06 Guido Valentini Dispositivo di connessione per alimentazione elettrica ed aspirazionedi polveri per un utensile elettrico portatile per la lavorazione di s
DE102012213750A1 (de) * 2012-08-03 2014-02-27 Robert Bosch Gmbh Absaugvorrichtung
DE102014001349A1 (de) * 2014-02-01 2015-08-06 Festool Gmbh Anschlussvorrichtung für eine Staubabfuhreinrichtung und eine Hand-Werkzeugmaschine

Also Published As

Publication number Publication date
EP3178614A1 (fr) 2017-06-14
US20190000290A1 (en) 2019-01-03
WO2017097698A1 (fr) 2017-06-15
RU2018125163A (ru) 2020-01-13

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