EP0129754B1 - Elektrohandwerkzeug mit einem geteilten Gehäuse - Google Patents

Elektrohandwerkzeug mit einem geteilten Gehäuse Download PDF

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Publication number
EP0129754B1
EP0129754B1 EP84106559A EP84106559A EP0129754B1 EP 0129754 B1 EP0129754 B1 EP 0129754B1 EP 84106559 A EP84106559 A EP 84106559A EP 84106559 A EP84106559 A EP 84106559A EP 0129754 B1 EP0129754 B1 EP 0129754B1
Authority
EP
European Patent Office
Prior art keywords
enclosure
electric
housing
shell
cover
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
Application number
EP84106559A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0129754A1 (de
Inventor
Wolfgang Dipl.-Ing. Haas
Wolfgang Fuchs
Doris Reich
Rainer Dipl.-Ing. Schilling
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 EP0129754A1 publication Critical patent/EP0129754A1/de
Application granted granted Critical
Publication of EP0129754B1 publication Critical patent/EP0129754B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B9/00—Portable power-driven circular saws for manual operation

Definitions

  • the invention relates to an electric hand tool according to the preamble of the main claim.
  • Such an electrical hand tool is already known from US Pat. No. 3,456,696, in which two caps surround a basic housing in an insulating and mechanically protective manner. When removing these caps, only the connection parts for electrical lines are exposed, but not the line itself. These must be threaded through openings and channels in the basic housing. This increases the assembly and repair work considerably.
  • a housing consisting of two longitudinally divided shells is known. This shell construction means that the internal cables and their fasteners are easily accessible.
  • Such a shell construction is for power tools with housing and handle parts at an angle to one another, such as, for. B.
  • the power tool according to the invention with the characterizing features of the main claim has the advantage that the entire length of cable ducts that are at an angle to one another are accessible from the side, and that the necessary connecting lines with the attachable housing parts are introduced into the formed ducts and preferably also via Plug contacts can be contacted at the respective ends of the connecting lines.
  • This enables pre-assembly outside of the power tool, in which the line connections can also be prepared by automatic handling machines.
  • the electrical connecting lines to be laid and by connecting these lines to the attachable, channel-forming housing parts enable rapid assembly or repair at various points on the power tool.
  • FIG. 1 shows a perspective view of an electric circular saw designed according to the invention with an angled channel cover
  • FIG. 2 shows an exploded view with side views of individual tool elements with an integrated conductor in individual figures 2.1 to 2.5
  • FIG. 3 shows a side view of FIG. 2.2 in the direction of arrow A
  • 4 shows an exploded view in individual figures 4.1 and 4.2 similar to FIGS. 2.2 and 2.3 of a second embodiment with side views of individual components for forming channels in which flexible lines are guided with connectors attached to the ends
  • FIG. 5 shows a side view of FIG. 4.1. seen in the direction of arrow B.
  • An electric circular saw 1 has a main housing 2, a longitudinally divided handle 3 with a shell 4 fixed to the housing and a removable shell 5 and a housing cover 6.
  • the overall housing is supplemented by a channel cover 7 between the handle 3 and the housing cover 6.
  • the channel cover is inserted into a guide 11 of the main housing 2 and has at one end a nose 8 which is overlapped by the shell wall 9 of the shell 5.
  • the duct cover 7 is provided with steps 10, which are overlapped by the housing cover 6 in the assembled state of the electric circular saw 1. It is thus secured in every case, both when the shell 5 and the housing cover 6 are removed.
  • a protective hood 12 from which a circular saw blade 13 protrudes.
  • a plate 14 carries various electrical components 15, connecting lines 16 and plug connections 17.
  • One of the components is an electrical switch 18 with a push button 19, another a capacitor for radio interference suppression, another a mechanical switch-on lock 20 for the electrical switch 18.
  • By means of holes 21 in the plate 14 it can be fastened in the shell 4 fixed to the housing.
  • the direction of installation indicates the arrow C.
  • Sockets 22 on the plate 14 serve for the plug connection of the channel cover 7 with corresponding connector lugs 23.
  • the connector lugs 23 are connected via connecting lines 24 in the channel cover 7 to connector lugs 25 at the other end of the channel cover 7.
  • the connector lugs 25 are assigned to sockets 26 of a module 27.
  • This assembly 27 carries carbon brushes 28 in holders 29 which are provided with two of the four contact plugs 31.
  • the sockets 26 are connected to the other two plugs 31 via conductors 30 (not visible).
  • Contact plugs of assembly 27 are inserted into sockets 32 on motor 33, assembly 27 being aligned and centered on main housing 2 by means of guide strips.
  • the carbon brushes 28 are assigned to the parts of an electric motor 33 protruding from the main housing 2 in a manner suitable for operation.
  • the electrical connection of the motor 33 to the supply line 34 introduced by the handle 3 takes place through the simultaneous contact between the connector lugs 23 and 25 and the sockets 22 and 26.
  • the duct cover must be fitted beforehand or at the same time as the module 27 is plugged onto the main housing 2 7 be brought into their assembled position to the main housing 2.
  • the housing cover 6 is placed on and secures the duct cover 7 on the main housing 2 as well as the assembly 27 via the steps 10.
  • the housing cover 6 can be held on the main housing 2 in a known manner by means of screws or by snap connections and is not shown here. The mating movement of the components described in detail above is symbolized by further arrows D.
  • the housing cover 6 only needs to be pulled off and the assembly 27 removed from its plug connection with the main housing 2. Repeated assembly of the replacement part takes place just as quickly as this disassembly. Only pulling or plugging movements are required. Incorrect connection of the electrical components is impossible. In the event of faults in the area of the electrical switch 18, only the shell 5 is pulled off. Defective components on the plate 14 inside the shells 4 and 5 can then be replaced in a simple manner by the plug connections arranged there. In addition to the electrical components, this also applies to the mechanical parts of the lock 20. They can easily be pulled off their bearing axles. Here, too, assembly is just as easy as disassembly. There is practically no damage to the connecting lines 24 in the duct cover 7. Should an inspection of these connecting lines nevertheless become necessary, the duct cover 7 must also be removed after the housing cover 6, the assembly 27 and the shell 5 have been removed, the connector lugs 23 being pulled out of the sockets 22.
  • the rigid connector lugs 23 and 25, the sockets 22 and 26 and the conductors 16 (with plug connections 17) and 24 integrated into the components are replaced by flexible lines 35 with corresponding connection plugs 36.
  • These lines 35 are inserted on the one hand by means of the plug 36 in the switch 18 and on the other hand directly into the sockets 32 on the pole piece of the electric motor 33.
  • the assembly 27 then carries only 2 contact plugs 31 from the brush holders 29.
  • the lines 35 run in the channels between the plate 14 and the handle shell 4 fixed to the housing, and between the channel cover 7 and the motor housing 2, and are thus protected against damage by being pinched. This is an alternative that requires less precise coordination between the mechanical fitting and locking means and the electrical contact connections, but is still very easy to assemble.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Motor Or Generator Frames (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP84106559A 1983-06-28 1984-06-08 Elektrohandwerkzeug mit einem geteilten Gehäuse Expired EP0129754B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833323219 DE3323219A1 (de) 1983-06-28 1983-06-28 Elektrohandwerkzeug mit einem geteilten gehaeuse
DE3323219 1983-06-28

Publications (2)

Publication Number Publication Date
EP0129754A1 EP0129754A1 (de) 1985-01-02
EP0129754B1 true EP0129754B1 (de) 1988-09-07

Family

ID=6202569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106559A Expired EP0129754B1 (de) 1983-06-28 1984-06-08 Elektrohandwerkzeug mit einem geteilten Gehäuse

Country Status (3)

Country Link
EP (1) EP0129754B1 (es)
JP (1) JPS6022441A (es)
DE (2) DE3323219A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5180019A (en) * 1991-04-15 1993-01-19 Ingersoll-Rand Company Power tool having selectable inlet location
US5159870A (en) * 1991-08-15 1992-11-03 Fiala Paul E Portable electric cutting and scoring saw
DE4204947A1 (de) * 1992-02-19 1993-08-26 Scintilla Ag Kraftgetriebene handwerkzeugmaschine
DE29717071U1 (de) * 1997-09-24 1999-02-04 Robert Bosch Gmbh, 70469 Stuttgart Handwerkzeugmaschine
CN100455391C (zh) * 2002-11-22 2009-01-28 罗伯特·博施有限公司 手持式电动工具机
DE10340178B3 (de) * 2003-09-01 2005-04-07 Hilti Ag Elektrowerkzeug
US8179004B2 (en) 2009-11-06 2012-05-15 Shop Vac Corporation Motor assembly with switch module

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761474A (en) * 1955-05-17 1956-09-04 American Floor Surfacing Mach Adjustable support for portable power saws
US3456696A (en) * 1966-07-13 1969-07-22 Rockwell Mfg Co Portable circular saw
US3546502A (en) * 1969-02-19 1970-12-08 Murphy Ind Inc G W Electric hand tool with heat conductive thrust bearing means
US3908139A (en) * 1974-06-10 1975-09-23 Singer Co Portable power tools
DE2631431C2 (de) * 1976-07-13 1981-10-08 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Elektrowerkzeug
DE2928931A1 (de) * 1979-07-18 1981-02-12 Bosch Gmbh Robert Zugentlastungsvorrichtung fuer eine elektrische anschlussleitung insbesondere von einem kraftwerkzeug
DE3123517C2 (de) * 1981-06-13 1987-04-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Bürstenhalter
DE3239238A1 (de) * 1982-10-21 1984-04-26 Black & Decker, Inc. (Eine Gesellschaft N.D.Ges.D. Staates Delaware), Newark, Del. Verfahren zum verdrahten von elektrogeraeten, insbesondere elektrowerkzeugen sowie eletrogeraet

Also Published As

Publication number Publication date
EP0129754A1 (de) 1985-01-02
JPS6022441A (ja) 1985-02-04
DE3473848D1 (en) 1988-10-13
DE3323219A1 (de) 1985-01-10
DE3323219C2 (es) 1992-10-01

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