EP0607612A1 - Procédé d'utilisation pour une machine de nettoyage des tuyaux et machine pour la mise en oeuvre ce procédé - Google Patents

Procédé d'utilisation pour une machine de nettoyage des tuyaux et machine pour la mise en oeuvre ce procédé Download PDF

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Publication number
EP0607612A1
EP0607612A1 EP93120906A EP93120906A EP0607612A1 EP 0607612 A1 EP0607612 A1 EP 0607612A1 EP 93120906 A EP93120906 A EP 93120906A EP 93120906 A EP93120906 A EP 93120906A EP 0607612 A1 EP0607612 A1 EP 0607612A1
Authority
EP
European Patent Office
Prior art keywords
drive motor
hand lever
cleaning machine
switching
pipe cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93120906A
Other languages
German (de)
English (en)
Other versions
EP0607612B1 (fr
Inventor
Peter Auell
Jürgen Dipl.-Ing Trüschler
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.)
Rothenberger Werkzeuge AG
Original Assignee
Rothenberger Werkzeugemaschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rothenberger Werkzeugemaschinen GmbH filed Critical Rothenberger Werkzeugemaschinen GmbH
Publication of EP0607612A1 publication Critical patent/EP0607612A1/fr
Application granted granted Critical
Publication of EP0607612B1 publication Critical patent/EP0607612B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
    • E03F9/002—Cleaning sewer pipes by mechanical means
    • E03F9/005—Apparatus for simultaneously pushing and rotating a cleaning device carried by the leading end of a cable or an assembly of rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/045—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices being rotated while moved, e.g. flexible rotating shaft or "snake"

Definitions

  • the invention relates to an operating method for a pipe cleaning machine driven by a drive motor with a friction clutch for driving a flexible cleaning element and with a pivotable hand lever for actuating the friction clutch, the torque acting on the cleaning element being increased with increasing hand lever pressure.
  • a pipe cleaning machine with which such an operating method can be carried out is known from EP-A 0 061 003.
  • Such pipe cleaning machines require a relatively sensitive operation, which is given by the operating behavior of the flexible cleaning element.
  • the cleaning elements also include so-called cleaning spirals, which, however, are not “real" spirals in the mathematical sense, but in principle helical springs are manufactured in finite partial lengths and can be extended using special couplings.
  • these cleaning elements have interchangeable cleaning tools, which include drills, milling cutters, brushes, ring saws, centrifugal chains, etc.
  • the pipe cleaning machines for driving these cleaning elements are usually designed in the form of suitcases or small trolleys through which the cleaning element is passed either by hand or by means of an upstream transport device.
  • Such pipe cleaning machines are used to clean all possible sewage pipes and channels, which are often of considerable length and are provided with a large number of elbows, elbows, T-pieces, etc.
  • the cleaning element is guided by hand in an arc, the operator trying to shorten the arc to bring about a feed.
  • the operator By constantly touching this elbow of the cleaning element by hand, the operator has a feeling for the operating behavior of the cleaning tool, which can encounter unknown, more or less tough or hard blockages within the pipeline during his work.
  • the invention is therefore based on the object of simplifying the operating method specified at the outset so that the operator does not have to constantly grasp between the individual operating elements with one hand and in particular does not lose contact with the hand lever for actuating the friction clutch.
  • the operator can keep one hand constantly on the arch of the flexible cleaning element, while the other hand can always remain on the hand lever.
  • all electrical functions can thus be controlled without releasing it, in addition to the mechanical function of the more or less strong pressing of the clutch shoes onto the flexible cleaning element.
  • the operator can focus the major part of the necessary attention on the guidance of the flexible cleaning element and thereby carry out the actual cleaning process much more purposefully and in a shorter time.
  • the operating method is advantageously further developed in that the direction of rotation of the drive motor is brought about by a movement of the hand lever opposite to the switch-on movement.
  • the invention also relates to a pipe cleaning machine for carrying out the operating method described above and has For this purpose, in a known manner, a drive motor, a friction clutch that can be driven by this and controlled by a pivotable hand lever for driving a flexible cleaning element, and switching elements that can be controlled from the hand lever for switching the drive motor on and off and for changing the direction of rotation of the drive motor.
  • such a pipe cleaning machine is characterized according to the invention in that the switching elements for switching on and for reversing the direction of rotation of the drive motor are arranged in the range of motion of the hand lever or at least one control part connected to it that the drive motor is initially pivoted in a first sense of movement can be switched on and then the actuation of the friction clutch can be brought about with increasing friction torque, and that the reversal of the direction of rotation of the drive motor can be brought about by a lever pivot in the opposite direction of movement.
  • the hand lever assumes a stable intermediate position between the two actuation directions, from which it cannot be adjusted without external force.
  • This stable intermediate position can advantageously be achieved on the one hand by the compression springs assigned to the friction clutch, and on the other hand by gravity or by the weight of the Hand lever itself.
  • the switching element for switching the direction of rotation of the drive motor is assigned display elements for displaying the direction of rotation. If these display elements are already activated when the main switch is switched on, the operator has constant control over the direction of rotation with which the flexible cleaning element is set in rotation when the hand lever moves downward.
  • control part is a magnet
  • switching elements are magnetically actuated switches
  • control part is in the intermediate position of the hand lever in an intermediate position out of influence on the switching elements, but by the pivoting movement of the hand lever in both pivot directions alternatively can be brought into the sphere of influence of one or the other magnetic switching element.
  • switching elements are extremely robust in operation and can be reliably controlled by the steep field gradient of the magnetic control part. They can be arranged in pairs side by side or one above the other, the distance only having to be so large that both switching elements cannot be operated simultaneously or in the same switching direction. A special adjustment is not necessary if a template, a stop or the like is used to ensure that the two switching elements have a certain spatial position relative to the movement path of the control part.
  • a particularly simple arrangement is provided when the hand lever is mounted on a lever axis inside a housing by means of a fork part with two parallel legs and when the control part is attached to a leg of the fork part.
  • the switching elements are preferably reed relays, i.e. encapsulated, executed.
  • the switching elements are arranged on an inner wall surface of the switch box. They are then also splash-proof with regard to their connections and can be arranged on the same circuit board as the other electronic components of the pipe cleaning machine. This makes one unnecessary complicated wiring and wiring outside the control box.
  • the hand lever assumes a stable intermediate position between the two actuation directions, from which it cannot be adjusted without external force.
  • This stable intermediate position can be achieved in an advantageous manner on the one hand by the compression springs assigned to the friction clutch, and on the other hand by gravity or by the weight of the hand lever itself.
  • a pipe cleaning machine 1 is shown, the housing 2 consists of a peripheral frame 3 and two housing covers, not shown, which are screwed onto both sides of the frame 3.
  • a flexible cleaning element is guided through the housing 2 along the axis of rotation A-A, which can consist, for example, of the "cleaning spiral" described at the beginning.
  • A-A can consist, for example, of the "cleaning spiral” described at the beginning.
  • Such a cleaning spiral is shown in EP-A 0 061 003.
  • a first hollow shaft 6 is guided concentrically to the axis of rotation AA by means of two roller bearings 4 and 5, on which a toothed belt pulley 7 is arranged in a rotationally fixed manner.
  • the toothed belt pulley 7 is connected to a second toothed belt pulley 9 via a toothed belt 8, which sits rotatably on the shaft of a drive motor 10, which is designed as an AC motor with capacitor 11 ( Figure 4).
  • the hollow shaft 6 can be set in rotation, which carries at its inner end a driver 12 which is provided with a hollow cone surface (not specified) for receiving a friction clutch 13.
  • the friction clutch 13 consists in a known manner of several approximately sector-shaped clutch shoes, which are held in the unloaded state by pressure springs (one of which is shown) at a distance from one another and from the cleaning element.
  • a second hollow shaft 16 is mounted in the housing 2 - likewise concentrically to the axis of rotation AA - by means of needle bearings 14 and 15, with the interposition of a longitudinally displaceable bearing bush 17 which has a collar 17a at its inner end.
  • a pressure sleeve 18 is fastened in a rotationally fixed manner, which also has a hollow cone surface on its inside. In this way, the friction clutch 13 is held in the manner shown between the two hollow cone surfaces.
  • a pressure bearing 19 is arranged between the collar 17a and the pressure sleeve 18, so that the axial movement of the bearing sleeve 17 transmits the displacement movement to the pressure sleeve 18.
  • the axial displacement of the pressure sleeve 18 against the axially immovable driver 12 causes, due to the hollow cone surfaces described, a radial compression of the individual jaws of the friction clutch 13, and it depends on the actuating force exerted on the pressure sleeve 18 with which radial pressing force the individual jaws of the friction clutch 13 attach the flexible cleaning element is pressed, or with what torque the friction clutch 17 acts on the flexible cleaning element.
  • the bearing bush 17 is in turn mounted in a bearing body 20 which is fixed to the housing and has an eye 20a on its underside with a lever axis 21.
  • This lever axis runs parallel to a mounting surface 23 and perpendicular to the axis of rotation AA and carries a hand lever 22 which penetrates the frame 3 and has an approximately horizontal handle end 22a at its free end and angled at its inner end with a fork part 24 is, the two legs of which are penetrated by the lever axis 21.
  • An elastomeric bellows 25 is provided for sealing between frame 3 and hand lever 22.
  • the control panel 26 shown in FIG. 3 is also arranged on the top of the frame 3.
  • FIG. 2 the same parts as in FIG. 1 are provided with the same reference symbols.
  • a power supply line 27 is used for the power supply, which is introduced into the interior of the housing via an anti-kink sleeve 28 and a stuffing box screw connection 29 and ends there in a terminal box 30 (FIGS. 2 and 4). From this another line 31 leads to the control panel 26, which will be discussed in more detail below.
  • a distribution box 32 On the side opposite the terminal box 30 there is a distribution box 32 in which the entire wiring for the electrical control is brought together.
  • the line routing is, however, essentially explained with reference to FIG. What is essential here is only the spatial position of the individual switching elements in relation to those components which control these switching elements.
  • FIG. 1 shows a first switching element 33 for the drive motor 10.
  • This switching element 33 is designed as an inductive proximity switch and responds to the approach or distance of the hand lever 22. More specifically, it is a matter of detecting the position of the fork part 24, which is in the position shown in FIG. 1 in the immediate vicinity of the Switching element 33 is located. If the hand lever 22 is pressed down from this position, the drive motor 10 is first energized so that the hollow shaft 6 is driven. The driver 12, the pressure sleeve 18 and the friction clutch 13 take part in this rotation. With increasing downward movement, the drive motor 10 of course remains switched on, but by reducing the distance between the driver 12 and the pressure sleeve 18, the friction clutch 13 is compressed, the torque transmitted to the flexible cleaning element increasing.
  • FIG. 2 first shows how the actuation of the hand lever 22 is transmitted to the friction clutch 13.
  • the fork part 24 is connected to the collar 17a above the lever axis 21 via hinge pins 34, rigid tabs 35 and further hinge pins 36, only the front of which are visible.
  • the parts 34, 35 and 36 are, however, present in pairs in a mirror-symmetrical arrangement.
  • the collar 17a in turn acts on the pressure sleeve 18 via the thrust bearing 19 in the manner already described.
  • a second switching element 37 is arranged for reversing the direction of rotation of the drive motor 10. Since the pivoting movement of the fork part 24 is identical to the pivoting movement of the hand lever 22, the hand lever 22 therefore also acts on the second switching element 37.
  • This second switching element is designed as a mechanical changeover switch and reacts to the stop of the fork part 24.
  • an adjustable stop 38 is assigned to the second switching element 37.
  • FIG. 3 also shows that a main switch 43 is arranged in the control panel 26, the actuating element of which is designed as a rocker switch 43a.
  • the indicator element 41 or 42 which indicates the starting direction of rotation of the drive motor 10 in which the motor starts when the hand lever 22 is pressed down and thereby actuates the first switching element 33 lights up immediately.
  • a control lamp 44 is arranged below the transparent rocker switch 43a, which indicates the operational readiness of the pipe cleaning machine (FIG. 4).
  • the lever axis 21 runs parallel to a mounting surface 23 (FIG. 7) and perpendicular to the axis of rotation AA and carries the hand lever 22, which penetrates the frame 3 and has an angled handle end at its free end and a fixed part with a fork part 24 at its inner end is connected, the two legs 24a and 24c of which are penetrated by the lever axis 21. Both legs 24a and 24c are connected to the collar 17a via tabs 35 (FIGS. 5 and 7).
  • a power supply line 27 is used for the power supply, which is introduced into the interior of the housing via an anti-kink sleeve 28 and a stuffing box screw connection 29 and ends there in a terminal box 30 (FIG. 7). From this another line 31 leads to the control panel. On the side opposite the terminal box 30 there is an electronic switch box 32a, in which the entire wiring for the electrical control is brought together. What is essential here is only the spatial position of the individual switching elements in relation to those components which control these switching elements.
  • FIGS. 5 and 6 show a first switching element 33a for the drive motor 10.
  • This switching element 33a is designed as a reed relay and responds to the movement of the hand lever 22. More precisely, it is the detection of the position of a control part 50, which is laterally offset in the position shown in FIG. 5 (see FIG. 6) between the switching element 33a and a further switching element 37a, which is likewise designed as a reed relay.
  • the control part 50 is a pin-shaped permanent magnet.
  • the control part 50 pivoted upward and the switching element 33a first the drive motor 10 is energized so that the hollow shaft 6 is driven.
  • the driver 12, the pressure sleeve 18 and the friction clutch 13 take part in this rotation.
  • the drive motor 10 With increasing downward movement, the drive motor 10 of course remains switched on, but by reducing the distance between the driver 12 and the pressure sleeve 18, the friction clutch 13 is pressed together, the torque transmitted to the flexible cleaning element increasing (see again FIG. 1).
  • FIGS. 5 and 6 show how the actuation of the hand lever 22 is transmitted to the friction clutch 13.
  • the fork part 24 is connected above the lever axis 21 via two hinge pins 34, two rigid tabs 35 and two further hinge pins 36 to the collar 17a, which in turn acts on the pressure sleeve 18 via the thrust bearing 19 in the manner already described. Since the pivoting movement of the fork part 24 is identical to the pivoting movement of the hand lever 22, the hand lever 22 therefore also acts on the second switching element 37a.
  • an adjustable stop buffer 38a is assigned to it, which is made of an elastomeric material, e.g. made of rubber ( Figure 7).
  • FIGS. 5 and 6 also show the following:
  • the leg 24a of the fork part 24 facing the viewer in FIG. 5 has at its end below the lever axis 21 a receptacle 24b into which an approximately radially projecting holding part 51 is inserted, which in turn is inserted has at its end a cylindrical arm 52, in the end of which the control part 50 is inserted in the form of a pin-shaped permanent magnet 50a.
  • the control part 50 pivots about the lever axis 21 and, alternatively, gets into the area of influence of the magnetically actuated switching elements 33a and 37a.
  • the Swiveling movements are indicated in FIG. 6 by arrows 53 (switching on, actuating clutch) and 54 (relieving clutch, reversing direction of rotation).
  • a tension spring 55 which is stretched between the bearing body 20 and the hinge pin 34, holds the hand lever 22 and thus the control body 50 in the neutral intermediate position shown in FIGS. 5 and 6, in which the other leg 24c on the stop buffer shown in FIG 38a rests, which is adjustably supported by a threaded spindle 38b with lock nut 38c in a tab 20a which is attached to the bearing body 20 in a radially projecting manner.
  • FIG. 6 also shows that the switching elements 33a and 37a are arranged on the inner wall surface 32b of a wall 32a of the electronic control box 32, which is made of a plastic.
  • the alternative possibility of arranging the switching elements on the outer wall surface 32c is shown in dashed lines.
  • the neutral position of the switching element 50 is shown by a dash-dotted line N:
  • the switching elements 33a and 37a are equally spaced on both sides of the neutral position.
  • a transport aid is associated with the hand lever: This consists of a pawl 56 which can be pivoted about an axis 57 and on whose free end the fork part 24 is supported. As a result, the handle end 22a is held approximately horizontally so that it can serve as a handle. To establish the operational readiness, with the handle end 22a depressed, it is sufficient to press the button 58, as a result of which the pawl 56 is pivoted out of the way of the fork part 24 into the neutral position according to FIG. 2.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP93120906A 1993-01-19 1993-12-26 Procédé d'utilisation pour une machine de nettoyage des tuyaux et machine pour la mise en oeuvre ce procédé Expired - Lifetime EP0607612B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4301179 1993-01-19
DE4301179A DE4301179C2 (de) 1993-01-19 1993-01-19 Verfahren zum Betrieb einer Rohrreinigungsmaschine und Rohrreinigungsmaschine für die Durchführung des Verfahrens
DE4341075 1993-12-02
DE4341075A DE4341075C2 (de) 1993-01-19 1993-12-02 Antrieb eines flexiblen Reinigungselements einer Rohrreinigungsmaschine

Publications (2)

Publication Number Publication Date
EP0607612A1 true EP0607612A1 (fr) 1994-07-27
EP0607612B1 EP0607612B1 (fr) 1997-03-12

Family

ID=25922331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93120906A Expired - Lifetime EP0607612B1 (fr) 1993-01-19 1993-12-26 Procédé d'utilisation pour une machine de nettoyage des tuyaux et machine pour la mise en oeuvre ce procédé

Country Status (3)

Country Link
EP (1) EP0607612B1 (fr)
AT (1) ATE149887T1 (fr)
DE (3) DE4301179C2 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19739359A1 (de) * 1997-09-09 1999-05-12 Reiner Seitz Tragbare Rohrreinigungsmaschine
WO2015113668A1 (fr) * 2014-01-28 2015-08-06 Lehmann Gmbh & Co. Kg Machine de nettoyage des tuyauteries et des canalisations
WO2020165443A1 (fr) * 2019-02-14 2020-08-20 Lehmann Gmbh & Co. Kg Machine de nettoyage de tube et de canal ainsi que procédé pour l'utilisation de la machine de nettoyage de tube et de canal
US11021859B2 (en) 2018-08-10 2021-06-01 Milwaukee Electric Tool Corporation Drain cleaning machine
CN114423533A (zh) * 2019-09-30 2022-04-29 米沃奇电动工具公司 排水管清洁机器的电机控制
US11603654B2 (en) 2019-05-15 2023-03-14 Milwaukee Electric Tool Corporation Drain cleaning device
EP4223947A1 (fr) * 2022-02-03 2023-08-09 Lehmann GmbH & Co. KG Machine de nettoyage de tuyaux et de canalisations
EP4103338A4 (fr) * 2020-02-12 2024-10-02 Milwaukee Electric Tool Corporation Machine de nettoyage de drain

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19841813C2 (de) * 1998-09-12 2001-03-22 Rothenberger Werkzeuge Ag Rohrreinigungsmaschine
US6076219A (en) * 1999-01-15 2000-06-20 Irwin; Lawrence F. Waste line clean out apparatus
US11999033B2 (en) 2019-10-03 2024-06-04 Milwaukee Electric Tool Corporation Drain cleaner cable decoupler tool
CN114673249B (zh) * 2022-04-06 2023-11-17 温州凯睿建设有限公司 一种市政下水管道清理装置及其清理方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3213473A (en) * 1963-09-03 1965-10-26 Singer Louis Pipe cleaning device
US3776179A (en) * 1968-09-24 1973-12-04 W Raney Device for pushing and pulling implements, including cables, into and from conduits and the like
DE9110901U1 (de) * 1991-09-03 1992-01-02 Horst Klünder GmbH, 6367 Karben Rohrreinigungsgerät

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1690197A1 (de) * 1968-01-17 1971-05-06 Scheer & Cie C F Magnet-Schwimmerschalter
DE2613944C3 (de) * 1976-04-01 1981-07-23 Rowo Rohrwolf Produktions Ag Und Co Vertriebs Kg, 3436 Hessisch Lichtenau Tragbares Rohrreinigungsgerät mit einer in Umdrehung versetzbaren Drahtwendel
DE3109876A1 (de) * 1981-03-14 1982-09-30 Rothenberger GmbH & Co Werkzeuge-Maschinen KG, 6000 Frankfurt Rohrreinigungsmaschine mit einem behaelter fuer die aufnahme von reinigungsspiralen unterschiedlicher durchmesser
US4361924A (en) * 1981-06-24 1982-12-07 Lawrence Irwin F Grip handle chuck
CH682061A5 (en) * 1991-07-12 1993-07-15 Eduard Isenschmid Flat-work-cutting machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3213473A (en) * 1963-09-03 1965-10-26 Singer Louis Pipe cleaning device
US3776179A (en) * 1968-09-24 1973-12-04 W Raney Device for pushing and pulling implements, including cables, into and from conduits and the like
DE9110901U1 (de) * 1991-09-03 1992-01-02 Horst Klünder GmbH, 6367 Karben Rohrreinigungsgerät

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19739359A1 (de) * 1997-09-09 1999-05-12 Reiner Seitz Tragbare Rohrreinigungsmaschine
DE19739359C2 (de) * 1997-09-09 1999-08-19 Seitz Tragbare Rohrreinigungsmaschine
WO2015113668A1 (fr) * 2014-01-28 2015-08-06 Lehmann Gmbh & Co. Kg Machine de nettoyage des tuyauteries et des canalisations
US11021859B2 (en) 2018-08-10 2021-06-01 Milwaukee Electric Tool Corporation Drain cleaning machine
US11821188B2 (en) 2018-08-10 2023-11-21 Milwaukee Electric Tool Corporation Drain cleaning machine
US12264469B2 (en) 2018-08-10 2025-04-01 Milwaukee Electric Tool Corporation Drain cleaning machine
WO2020165443A1 (fr) * 2019-02-14 2020-08-20 Lehmann Gmbh & Co. Kg Machine de nettoyage de tube et de canal ainsi que procédé pour l'utilisation de la machine de nettoyage de tube et de canal
US11603654B2 (en) 2019-05-15 2023-03-14 Milwaukee Electric Tool Corporation Drain cleaning device
CN114423533A (zh) * 2019-09-30 2022-04-29 米沃奇电动工具公司 排水管清洁机器的电机控制
CN114423533B (zh) * 2019-09-30 2024-01-23 米沃奇电动工具公司 排水管清洁机器的电机控制
EP4103338A4 (fr) * 2020-02-12 2024-10-02 Milwaukee Electric Tool Corporation Machine de nettoyage de drain
EP4223947A1 (fr) * 2022-02-03 2023-08-09 Lehmann GmbH & Co. KG Machine de nettoyage de tuyaux et de canalisations

Also Published As

Publication number Publication date
EP0607612B1 (fr) 1997-03-12
DE4301179A1 (de) 1994-07-21
DE59305768D1 (de) 1997-04-17
DE4341075A1 (de) 1995-06-08
DE4301179C2 (de) 1995-11-16
DE4341075C2 (de) 1996-06-05
ATE149887T1 (de) 1997-03-15

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