EP1163087B1 - 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
EP1163087B1
EP1163087B1 EP00988624A EP00988624A EP1163087B1 EP 1163087 B1 EP1163087 B1 EP 1163087B1 EP 00988624 A EP00988624 A EP 00988624A EP 00988624 A EP00988624 A EP 00988624A EP 1163087 B1 EP1163087 B1 EP 1163087B1
Authority
EP
European Patent Office
Prior art keywords
rib
fixing device
hand
power line
power tool
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.)
Expired - Lifetime
Application number
EP00988624A
Other languages
German (de)
English (en)
Other versions
EP1163087A1 (fr
Inventor
Roland Walz
Peter Stierle
Ralph Dammertz
Maria-Margareta Sulea
Stefan Heess
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.)
Robert Bosch GmbH
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
Publication of EP1163087A1 publication Critical patent/EP1163087A1/fr
Application granted granted Critical
Publication of EP1163087B1 publication Critical patent/EP1163087B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

  • the invention is based on an electric hand tool, in particular an angle grinder with the features of the preamble of claim 1.
  • an electric hand tool in particular an angle grinder with the features of the preamble of claim 1.
  • Such a machine is known from DE 1 854 475 U.
  • an electrical connector which consists of a housing with a device for receiving a power line to a mounting shell of the housing, in particular executed in shell construction, wherein the mounting cup has a first opening for performing the power line and in the Has surrounding the first opening arranged labyrinth-shaped fixing device for the power line.
  • This fixing device prevents the power cable from accidentally disconnecting from the plug under normal conditions.
  • it is not sufficient for such electrical appliances that are exposed to the particularly severe stresses in construction site operation.
  • Such a solution is known for a jigsaw whose housing is designed in shell construction with a mounting and a cover shell.
  • the power cable is mounted in the housing so that a strain relief is effected.
  • the power line is guided through an opening in the housing and there by means of a clamp which clamps the power line, and labyrinth-shaped webs, through which the power line is serpentine defined.
  • These devices are arranged in the mounting cup.
  • the labyrinth-shaped webs opposite clamping ribs are arranged, which hold the power line in the labyrinth-shaped webs, so that they can not accidentally slip out of these.
  • the angle grinder according to the invention with the features of claim 1 has the advantage of a simpler installation and thus a cheaper product.
  • the first rib has two parallel rib parts, between which the power line can be guided. As a result, a secure guiding of the power line is ensured, since a deflection of the power line is prevented both in the direction of the first and second rib part.
  • the second rib is arranged in the alignment of the first opening exactly in the middle between the two rib parts of the first rib. This ensures optimum protection against the insertion of the power line into the device, since the second rib from the power line impinges centrally on the second rib through the guide by means of the first rib.
  • the second rib is arranged at a distance from the first rib, which 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 labyrinthine fixing device is fixed in position in the mounting cup, but also between the first rib and second rib.
  • the device has a fastening device for a clamp.
  • a fastening device for a clamp it is additionally possible, individually to different country variants of the electrical device, d. H. on different thickness lines, enter.
  • the fastening device connects directly to the first rib, wherein it may be formed integrally therewith, for example. This leads to a 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 mounted state of the housing, lie opposite the fixing device of the mounting shell. As a result, the power line is securely clamped in the labyrinthine fixing device without slipping out of this.
  • FIG. 1 shows the region of the inner surface of an assembly shell 1 of an angle grinder, in which a power line 2 (see FIG. 3) enters the housing of the angle grinder.
  • the housing of the angle grinder is designed in shell construction with the mounting shell 1 and a cover shell 3 (see Figure 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, a fastening device 16 at. Subsequent to 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 aligned parallel thereto.
  • the two rib parts 13a, 13b are arranged along the alignment of the first opening 11.
  • Spaced to the first rib 13, a second rib 14 is arranged.
  • 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 bearing surface 17 which extends in a plane lying below the plane passing through the fastening means 16, the first rib 13 and the second rib 14 is formed.
  • a first Blokkier noise 14 a is arranged, which is integral with the second rib 14 and protrudes into the plane of the second rib 14 on 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 parallel thereto aligned third stop 12c.
  • a second fixing means 12b is arranged between the first fixing means 12a and the third fixing means 12c. This is formed cross-shaped.
  • the three fixing means 12a-12c of the fixing device 12 are connected to one another via a second bearing surface 18. This second bearing surface 18 is arranged in the same plane as the first bearing surface 17, ie below the plane formed by the three fixing means 12a-12c. It coincides with the plane in which the first rib 13 and the second rib 14 are arranged.
  • a second blocking means 12d Disposed between the second rib 14 and the second fixing means 12b is a second blocking means 12d which is integral with the second fixing means 12b and protrudes beyond the inside of the mounting shell 1 to the plane of the second fixing means 12b. It serves to reduce the clear width between the fixing device 12 and the second rib 14.
  • FIG. 2 The enlarged detail shown in FIG. 2 makes the relationships between the features described above even clearer. Identical parts are designated by the same reference numerals.
  • the mounting shell 1 shown in Figures 1 and 2 is shown with inserted power line 2.
  • the power line 2 has an inner portion 22 which is disposed within the mounting cup 1, and an outer portion 23 which is disposed outside of the mounting cup 1.
  • the power line 2 enters through the first opening 11 in the mounting cup 1 a.
  • the diameter 21 is so large that the power line 2 comes to rest almost free of play in the fastening device 16.
  • the power line 2 is then guided in the further course by the two rib portions 13a, 13b of the first rib 13 so that it can be moved only by a very small distance between these two rib portions 13a, 13b.
  • the first blocking device 14a is arranged, the clear width between the first rib portion 13a and the second rib 14 is reduced so that it is less than the diameter 21 of the power line 2.
  • the power line 2 between the first rib portion 13a and second rib 14 can be laid.
  • the distance between these two parts is just so great that the power line 2 can be inserted without clearance between them.
  • the second blocking device 12d By the second blocking device 12d, the clearance between the second rib 14 and the second fixing means 12b so far reduced that the power line 2 can not be inserted between the second rib 14 and the second fixing means 12b, the power line 2 must be forced through the fixing device 12. It is inserted serpentine between the three fixing means 12a-12c.
  • the inner portion 22 of the power line 2 is in this engaged state shown between the second rib portion 13b and the second rib 14 on the first support surface 17 (see Figures 1 and 2) and at the same time within the fixing device 12 on the second support surface 18 (see FIGS and 2) on.
  • the plane in which both the first bearing surface 17 and the second bearing surface 18 are arranged lies so far below the plane in which the first rib 13, the second rib 14 and the fixing device 12 are formed, so that the power line 2 to this Places substantially flush with the plane of the two ribs 13, 14 and the fixing device 12 closes.
  • the assembly is simplified and it can not be so skilled workers make this.
  • This S which abuts the second rib 14, it is ensured that a pushing in of the power line 2 is prevented in the interior of the housing.
  • This effect can be further improved by the fact that a clamp is attached to the fastening device 16 with screws, the power line 2 in addition in this area in determines their position with respect to the mounting cup 1, when the clamp is tightened firmly enough by means of the screws.
  • 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 cover shell 3 can be placed by folding on the mounting shell 1 of Figure 1, and you get the assembled state of the housing.
  • the cover shell 3 has a second opening 31, through which the power line 2 (see FIG. 5) can be guided into the interior of the housing.
  • Inside the lid shell 3 extend from its inner surface upwards a first clamping rib 32, a second clamping rib 33 and a third clamping rib 34. These are arranged so that they in the mounted state of the housing of the fixing device 12 are opposite (see Figure 5).
  • These three clamping ribs 32-34 are so far beyond the inner surface of the cover shell 3, that they conclude plan with the plane formed by their boundary substantially.
  • FIG. 4 further devices are recognizable, which are not essential to the invention and therefore not described in detail. These are, as in FIG. 1, also screw domes, ventilation slots and stiffening ribs.
  • FIG. 5 shows a mounted housing in which the mounting shell 1 and the cover shell 3 are joined together.
  • the power line 2 is in this case inserted into the housing and enters this through the two openings 11, 31 a.
  • 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 of the mounting shell 1 are opposite.
  • the three clamping ribs 32-34 are arranged on the cover shell 3, that they are in the mounted state on the 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 termination plane of the fixing device 12, so that there is a small area of overlap of the three clamping ribs 32-34 with the fixing device 12.
  • This overlap in conjunction with the described position of the ribs results in addition to the horizontal labyrinth effect yet another labyrinth effect across.
  • the inner portion 22 of the power line 2, as described for Figure 3, concludes with the termination plane of the fixing device 12 is substantially flat.
  • the inner portion 22 of the power line 2 is pressed firmly against the two bearing surfaces 17, 18 (see FIGS. 1 and 2).
  • trapping of the inner portion 22 of the power line 2 takes place, resulting in 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)

Claims (8)

  1. Machine-outil électrique manuelle, en particulier meuleuse d'angle, avec un boîtier comportant un dispositif pour recevoir un cordon d'alimentation (2) sur une coque de montage (1) du boîtier réalisé en particulier en monocoque, dans laquelle la coque de montage (1) présente une première ouverture (11) pour laisser passer le cordon d'alimentation (2) avec à proximité de la première ouverture (11), un dispositif de fixation en labyrinthe (12) pour le cordon d'alimentation (2).
    caractérisée en ce que
    la coque de montage (1) présente entre la première ouverture (11) et le dispositif de fixation (12) une première rainure (13) en alignement avec la première ouverture (11) ou parallèle à cet alignement et qui sert pour le guidage du cordon d'alimentation (2), et présente une deuxième rainure (14) entre le dispositif de fixation (12) et la première rainure (13) dans le chemin du cordon d'alimentation (2) prédéterminé par la première rainure (13), et un premier dispositif de blocage (14a) est disposé entre la première rainure (13) et la deuxième rainure (14) et/ou un deuxième dispositif de blocage (12d) est disposé entre le dispositif de fixation (12) et la deuxième rainure (14), de sorte que la largeur libre entre les deux pièces respectives soit plus petite que le diamètre du cordon d'alimentation (2).
  2. Machine-outil manuelle selon la revendication 1,
    caractérisée en ce que
    la première rainure (13) présente deux parties de rainure parallèles (13a, 13b), entre lesquelles le cordon d'alimentation (2) peut être guidé.
  3. Machine-outil manuelle selon la revendication 2,
    caractérisée en ce que
    la deuxième rainure (14) est disposée en alignement avec la première ouverture (11) exactement au milieu entre les deux parties de rainure (13a, 13b) de la première rainure (13).
  4. Machine-outil manuelle selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    la deuxième rainure (14) est disposée à une distance (15) de la première rainure (13), qui correspond environ au diamètre (21) du cordon d'alimentation (2), et est en particulier plus petite que ce diamètre (21).
  5. Machine-outil manuelle selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    la deuxième rainure (14) est orientée perpendiculairement au dispositif de fixation (12).
  6. Machine-outil manuelle selon l'une quelconque des revendications précédentes,
    caractérisée en ce qu'
    elle comporte un dispositif de fixation (16) pour un collier, qui est disposé en particulier entre la première ouverture (11) et la première rainure (13).
  7. Machine-outil manuelle selon la revendication 7,
    caractérisée en ce que
    le dispositif de fixation (16) se raccorde directement à la première rainure (13), et est en particulier formé intégralement avec celle-ci.
  8. Machine-outil manuelle selon l'une quelconque des revendications précédentes avec une coque de montage (1) et avec une coque de couvercle (3), qui présente des rainures de serrage (32, 33, 34) qui, à l'état monté du boîtier, se trouvent en face du dispositif de fixation (12) et servent à serrer le cordon d'alimentation (2).
EP00988624A 2000-01-10 2000-11-17 Machine-outil electrique portative, notamment meuleuse d'angle Expired - Lifetime EP1163087B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20000230U DE20000230U1 (de) 2000-01-10 2000-01-10 Elektrische Handwerkzeugmaschine, insbesondere Winkelschleifer
DE20000230U 2000-01-10
PCT/DE2000/004041 WO2001051256A1 (fr) 2000-01-10 2000-11-17 Machine-outil electrique portative, notamment meuleuse d'angle

Publications (2)

Publication Number Publication Date
EP1163087A1 EP1163087A1 (fr) 2001-12-19
EP1163087B1 true EP1163087B1 (fr) 2006-03-22

Family

ID=7935645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00988624A Expired - Lifetime EP1163087B1 (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)

Families Citing this family (5)

* 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
EP3098030A1 (fr) * 2015-05-27 2016-11-30 HILTI Aktiengesellschaft Carcasse de machine-outil portative
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

Family Cites Families (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.
HU187218B (en) * 1983-02-17 1985-11-28 Kontakta Alkatreszgyar Wire relieving device for electric apparatuses
DE3820741A1 (de) * 1988-06-18 1989-12-21 Hilti Ag Elektrisch betriebenes handwerkzeug
DE4344635B4 (de) * 1993-12-24 2006-06-08 Robert Bosch Gmbh Handwerkzeugmaschine

Also Published As

Publication number Publication date
DE50012455D1 (de) 2006-05-11
CN1227098C (zh) 2005-11-16
EP1163087A1 (fr) 2001-12-19
JP2003519580A (ja) 2003-06-24
CN1343159A (zh) 2002-04-03
DE20000230U1 (de) 2001-05-23
WO2001051256A1 (fr) 2001-07-19

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