WO2001051256A1 - Machine-outil electrique portative, notamment meuleuse d'angle - Google Patents

Machine-outil electrique portative, notamment meuleuse d'angle Download PDF

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Publication number
WO2001051256A1
WO2001051256A1 PCT/DE2000/004041 DE0004041W WO0151256A1 WO 2001051256 A1 WO2001051256 A1 WO 2001051256A1 DE 0004041 W DE0004041 W DE 0004041W WO 0151256 A1 WO0151256 A1 WO 0151256A1
Authority
WO
WIPO (PCT)
Prior art keywords
rib
power line
fixing device
opening
tool according
Prior art date
Application number
PCT/DE2000/004041
Other languages
German (de)
English (en)
Inventor
Roland Walz
Peter Stierle
Ralph Dammertz
Maria-Margareta Sulea
Stefan Heess
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to EP00988624A priority Critical patent/EP1163087B1/fr
Priority to DE50012455T priority patent/DE50012455D1/de
Priority to JP2001551661A priority patent/JP2003519580A/ja
Publication of WO2001051256A1 publication Critical patent/WO2001051256A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5833—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being forced in a tortuous or curved path, e.g. knots in cable
    • 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

Definitions

  • Electric hand machine tool in particular angle grinder
  • the invention is based on an electrical hand tool, in particular an angle grinder with the features of the preamble of claim 1.
  • Such a solution is known for a jigsaw, the housing of which is designed in shell construction with an assembly shell and a cover shell.
  • the mains cable is mounted in the geliiere in such a way that a strain relief is brought about.
  • the mains cable is guided through an opening in the housing and is fixed there by means of a clamp which clamps the mains cable and labyrinthine webs through which the mains cable is guided in a serpentine manner.
  • These devices are arranged in the mounting shell.
  • clamping ribs are arranged opposite the labyrinthine webs, which hold the power cable in the labyrinthine webs so that they cannot accidentally slip out of them.
  • the angle grinder according to the invention with the characterizing features of claim 1 has the advantage of a simpler assembly and thus a cheaper product.
  • the first rib which is arranged in the alignment of the first opening or parallel to this alignment, the
  • a second rib is arranged between the fixing device and the first rib in the path of the power line predetermined by the first rib, the power line abuts against this second rib and is deflected in its direction by it. This prevents the mains cable from being pushed into the housing from the outside. This does not result in the problem that the power cable can be pushed into the housing to such an extent that it is kinked and there is a short circuit. This avoids the need for servicing the electrical device.
  • Such an arrangement of the first rib and the second rib in connection with the known labyrinth-shaped fixing device ensures a simpler assembly than was previously the case. It is not necessary that
  • the power cable in the area of its entry into the housing using a clamp.
  • a fixing device for example on the mounting shell, and screws do not necessarily have to be used.
  • the power line becomes S-shaped in the area of the opening of the housing and incorrect laying of the power cables is prevented.
  • the power line between the first rib, the second rib and the fixing device can only be laid in a single way. This is achieved in that a blocking device is arranged between the first and second rib and between the second rib and the fixing device, so that the respective clear width between the parts is smaller than the diameter of the power line.
  • the first rib has two parallel rib parts, between which the power line can be routed. This ensures reliable routing of the power line, since the power line is prevented from evading both in the direction of the first and the second rib part.
  • Another advantage is achieved in that the second rib is arranged exactly in the middle between the two rib parts of the first rib in the alignment of the first opening. This ensures optimal protection against the mains cable being pushed into the device, since the second rib of the mains cable hits the second rib centrally through the guide by means of the first rib.
  • the second rib is arranged at a distance from the first rib that is smaller than the diameter of the power line. It is particularly advantageous if the clear width between the first rib and the second rib is approximately equal to the diameter of the power line. This ensures that the power line not only through the labyrinth-shaped fixing device is fixed in its position in the mounting shell, but also between the first rib and the second rib.
  • the device has a fastening device for a clamp. This also gives you the option of customizing different country versions of the electrical device, i.e. H. to deal with cables of different thicknesses.
  • the fastening device advantageously adjoins the first rib directly, it being possible, for example, to be formed integrally therewith. This leads to better mechanical stability of the individual parts.
  • the cover shell of the housing which is connected to the mounting shell, has clamping ribs which, in the assembled state of the housing, lie opposite the fixing device of the mounting shell.
  • FIG. 1 shows a perspective view of part of an assembly shell
  • Figure 2 shows an enlarged section of Figure 1 in the
  • Figure 3 shows the part of the mounting shell as in Figure 1 with the power cord inserted in the plan view
  • Figure 4 is a perspective view of part of a
  • Cover tray and Figure 5 shows a section through part of an assembled
  • Figure 1 shows the area of the inner surface of a mounting shell 1 of an angle grinder, in which a power line 2 (see Figure 3) enters the housing of the angle grinder.
  • the housing of the angle grinder is designed in a shell construction with the mounting shell 1 and a cover shell 3 (see FIG. 4).
  • the mounting shell 1 has a first opening 11. This is followed in the immediate vicinity, in the alignment of the first opening 11, by a fastening device 16. Following the fastening device 16, a first rib 13 is arranged, which is formed integrally therewith.
  • the first rib 13 consists of a first rib part 13a and a second rib part 13b oriented parallel thereto.
  • the two rib parts 13a, 13b are arranged along the alignment of the first opening 11.
  • a second rib 14 is arranged at a distance from the first rib 13.
  • the second rib 14 is aligned parallel to the two rib parts 13a, 13b. It is arranged so that it runs in the middle between the two rib parts 13a, 13b.
  • the second rib 14 is connected to the second rib part 13b of the first rib 13 via a first contact surface 17 which extends in a plane which is below the plane which is defined by the fastening device 16, the first rib 13 and the second rib 14 is formed.
  • a first blocking device 14a Arranged between the first rib 13 and the second rib 14 is a first blocking device 14a, which is embodied integrally with the second rib 14 and projects into the plane of the second rib 14 beyond the inside of the mounting shell 1. It serves to reduce the clear width between the first rib 13 and the second rib 14.
  • a labyrinth-shaped fixing device 12 is arranged on the inside of the mounting shell 1. This has a first stop 12a and a third stop 12c aligned parallel to this.
  • a second fixing means 12b is arranged between the first fixing means 12a and the third fixing means 12c. This is cross-shaped.
  • the three fixing means 12a-12c of the fixing device 12 are connected to one another via a second contact surface 18.
  • This second contact surface 18 is arranged in the same plane as the first contact surface 17, ie below the plane which is formed by the three fixing means 12a-12c. It corresponds to the plane in which the first rib 13 and the second rib 14 are arranged.
  • a second blocking device 12d Arranged between the second rib 14 and the second fixing means 12b is a second blocking device 12d, which is embodied integrally with the second fixing means 12b and which projects beyond the inside of the mounting shell 1 into the plane of the second fixing means 12b. She . serves to reduce the clear width between the fixing device 12 and the second rib 14.
  • FIG. 1 The other elements shown in Figure 1 are screw domes, ventilation slots and stiffening ribs. However, these elements are not essential to the invention and are known in the case of mounting shells 1 for angle grinders, so that there is no need here to describe them in more detail.
  • the enlarged section shown in FIG. 2 makes the relationships between the features described above even clearer. Identical parts are identified with the same reference numbers.
  • FIG. 3 shows the mounting shell 1 shown in FIGS. 1 and 2 with the mains cable 2 inserted.
  • the power line 2 has an inner section 22, which is arranged inside the mounting shell 1, and an outer section 23, which is arranged outside the mounting shell 1.
  • the power line 2 enters the mounting shell 1 through the first opening 11.
  • the diameter 21 is so large that the power line 2 comes to lie almost without play in the fastening device 16.
  • the power line 2 is then passed through the two rib parts 13a, 13b of the first rib 13 in such a way that it can only be moved a very small distance between these two rib parts 13a, 13b. Because the first blocking device 14a is arranged between the first rib part 13a and the second rib 14, the clear width between the first rib part 13a and the second rib 14 is reduced to such an extent that it is smaller than the diameter 21 of the power line 2. As a result, it is not possible for the power line 2 to be laid between the first rib part 13a and the second rib 14. It is therefore only possible to lay the inner section 22 of the power line 2 between the second rib part 13b and the second rib 14. The distance between these two parts is just so large that the power cable 2 can be inserted between them without play.
  • the power line 2 must necessarily be passed through the fixing device 12. It is inserted in a serpentine fashion between the three fixing means 12a-12c. In the inserted state shown, the inner section 22 of the power line 2 lies between the second rib part 13b and the second rib 14 on the first contact surface 17 (see FIGS. 1 and 2) and at the same time within the fixing device 12 on the second contact surface 18 (see FIGS. 1 and 2) and 2) on.
  • the level in which both the first support surface 17 and the second support surface 18 are arranged is so far below the level in which the first rib 13, the second rib 14 and the fixing device 12 are formed, so that the power line 2 on them Places essentially flush with the plane of the two ribs 13, 14 and the fixing device 12.
  • FIG. 4 shows a cover shell 3 for a housing of an angle grinder in a perspective view.
  • the view is chosen so that the lid shell 3 can be placed on the mounting shell 1 of FIG. 1 by folding up, and the assembled state of the housing is thus obtained.
  • the cover shell 3 has a second opening 31 through which the power line 2 (see FIG. 5) can be led into the interior of the housing.
  • a first clamping rib 32, a second clamping rib 33 and a third clamping rib 34 extend upwards from its inner surface. These are arranged such that they face the fixing device 12 in the assembled state of the housing (see FIG. 5).
  • These three clamping ribs 32-34 protrude so far beyond the inner surface of the cover shell 3 that they are essentially flat with the plane formed by their edges.
  • FIG. 4 also shows other devices which are not essential to the invention and are therefore not described in detail. As in FIG. 1, these are also screw domes, ventilation slots and stiffening ribs.
  • FIG. 5 shows an assembled housing in which the mounting shell 1 and the lid shell 3 are joined together.
  • the mains cable 2 is inserted into the housing and enters it through the two openings 11, 31.
  • the outer section 23 of the power line 2 is shown.
  • the three clamping ribs 32-34 of the cover shell 3 of the fixing device 12 lie opposite the mounting shell 1.
  • the three clamping ribs 32-34 are thus attached to the cover shell 3. orders that they are in the assembled state on a gap to the three fixing means 12a-12c of the fixing device 12.
  • the end planes of the three clamping ribs 32-34 engage in the end plane of the fixing device 12, so that there is a small area of an overlap of the three clamping ribs 32-34 with the fixing device 12.
  • the inner section 22 of the power line 2 is essentially flat with the end plane of the fixing device 12.
  • the inner section 22 of the power line 2 is pressed firmly against the two contact surfaces 17, 18 (see FIGS. 1 and 2).
  • the inner section 22 of the power line 2 is pinched, which leads to a simple and secure fixing of the power line 2 in the housing of the angle grinder.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

L'invention concerne une machine-outil électrique portative comportant un dispositif prévu pour loger une ligne de réseau (2) sur une coque de montage (1) du boîtier d'un appareil électrique, notamment d'une meuleuse d'angle de structure de préférence cupuliforme. Cette coque de montage (1) présente une première ouverture (11) pour permettre le passage de la ligne de réseau (2) et un dispositif de fixation (12) de type labyrinthe pour la ligne de réseau (2), monté à proximité de la première ouverture (11). Cette machine-outil électrique portative est plus économique et plus simple à monter du fait que la coque de montage (1) comporte entre la première ouverture (11) et le dispositif de fixation (12), une première nervure (13) aménagée à fleur de la première ouverture (11) ou parallèlement à cet alignement et servant à guider la ligne de réseau (2), ainsi qu'une seconde nervure (14) aménagée entre le dispositif de fixation (12) et la première nervure (13) sur le parcours de la ligne de réseaux, prédéfini par la première nervure (13).
PCT/DE2000/004041 2000-01-10 2000-11-17 Machine-outil electrique portative, notamment meuleuse d'angle WO2001051256A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP00988624A EP1163087B1 (fr) 2000-01-10 2000-11-17 Machine-outil electrique portative, notamment meuleuse d'angle
DE50012455T DE50012455D1 (de) 2000-01-10 2000-11-17 Elektrische handwerkzeugmaschine, insbesondere winkelschleifer
JP2001551661A JP2003519580A (ja) 2000-01-10 2000-11-17 電気式の手持ち工作機械、特にアングルグラインダ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20000230.9 2000-01-10
DE20000230U DE20000230U1 (de) 2000-01-10 2000-01-10 Elektrische Handwerkzeugmaschine, insbesondere Winkelschleifer

Publications (1)

Publication Number Publication Date
WO2001051256A1 true WO2001051256A1 (fr) 2001-07-19

Family

ID=7935645

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/004041 WO2001051256A1 (fr) 2000-01-10 2000-11-17 Machine-outil electrique portative, notamment meuleuse d'angle

Country Status (5)

Country Link
EP (1) EP1163087B1 (fr)
JP (1) JP2003519580A (fr)
CN (1) CN1227098C (fr)
DE (2) DE20000230U1 (fr)
WO (1) WO2001051256A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10675746B2 (en) 2015-05-27 2020-06-09 Hilti Aktiengesellschaft Hand-held power tool housing

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007043918A1 (de) * 2007-09-14 2009-04-02 Robert Bosch Gmbh Elektrohandwerkzeugmaschine
EP2581175B1 (fr) * 2011-10-11 2015-05-27 Black & Decker Inc. Protecteur de cable pour outils électriques
DE102021134361A1 (de) 2021-12-22 2023-06-22 Festool Gmbh Hand-Werkzeugmaschine mit einem Stromversorgungsanschluss
DE102022204270A1 (de) 2022-05-02 2023-11-02 Robert Bosch Gesellschaft mit beschränkter Haftung Handwerkzeugmaschine mit zwei Gehäusehalbschalen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1854475U (de) * 1961-10-23 1962-07-05 Siemens Ag Festlegeeinrichtung fuer kunststoffisolierte leitungsschnuere an geraeten fuer fernmelde-, insbesondere fernsprechanlagen.
FR2541521A1 (fr) * 1983-02-17 1984-08-24 Kontakta Alkatreszgyar Dispositif de soulagement pour conducteurs d'appareils electriques
DE3820741A1 (de) * 1988-06-18 1989-12-21 Hilti Ag Elektrisch betriebenes handwerkzeug
DE4344635A1 (de) * 1993-12-24 1995-08-10 Bosch Gmbh Robert Handwerkzeugmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1854475U (de) * 1961-10-23 1962-07-05 Siemens Ag Festlegeeinrichtung fuer kunststoffisolierte leitungsschnuere an geraeten fuer fernmelde-, insbesondere fernsprechanlagen.
FR2541521A1 (fr) * 1983-02-17 1984-08-24 Kontakta Alkatreszgyar Dispositif de soulagement pour conducteurs d'appareils electriques
DE3820741A1 (de) * 1988-06-18 1989-12-21 Hilti Ag Elektrisch betriebenes handwerkzeug
DE4344635A1 (de) * 1993-12-24 1995-08-10 Bosch Gmbh Robert Handwerkzeugmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10675746B2 (en) 2015-05-27 2020-06-09 Hilti Aktiengesellschaft Hand-held power tool housing

Also Published As

Publication number Publication date
EP1163087A1 (fr) 2001-12-19
DE20000230U1 (de) 2001-05-23
CN1227098C (zh) 2005-11-16
EP1163087B1 (fr) 2006-03-22
DE50012455D1 (de) 2006-05-11
JP2003519580A (ja) 2003-06-24
CN1343159A (zh) 2002-04-03

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