EP1017545A1 - Machine-outil tenue avec les mains presentant une partie desaxee avant et une partie desaxee arriere du boitier pour permettre une utilisation a deux mains - Google Patents

Machine-outil tenue avec les mains presentant une partie desaxee avant et une partie desaxee arriere du boitier pour permettre une utilisation a deux mains

Info

Publication number
EP1017545A1
EP1017545A1 EP98931910A EP98931910A EP1017545A1 EP 1017545 A1 EP1017545 A1 EP 1017545A1 EP 98931910 A EP98931910 A EP 98931910A EP 98931910 A EP98931910 A EP 98931910A EP 1017545 A1 EP1017545 A1 EP 1017545A1
Authority
EP
European Patent Office
Prior art keywords
housing
tool
hand
hand tool
tool according
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
EP98931910A
Other languages
German (de)
English (en)
Other versions
EP1017545B1 (fr
Inventor
Ernst Dreher
Christian Hermes
Juergen Stoeger
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 EP1017545A1 publication Critical patent/EP1017545A1/fr
Application granted granted Critical
Publication of EP1017545B1 publication Critical patent/EP1017545B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B25F5/02—Construction of casings, bodies or handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor

Definitions

  • the invention relates to a hand tool according to the preamble of claim 1.
  • Brushes designed as hand-held power tools with diverse, in particular rod-like, housing shapes are known which differ above all in terms of their drive and their working effect and in which handling was previously of secondary importance.
  • angle grinders with a rotating tool which is arranged approximately at right angles to the housing axis and which can also be a clampable brush tool.
  • Two-hand operation with high holding forces is required, such as when cleaning stubbornly soiled parts with an angle grinder or a hand drill with inserted brush tool.
  • the hand-held power tool according to the invention with the characterizing features of claim 1 is much easier to handle than known hand-held power tools, in particular when operating with two hands with high operating force with a brush tool inserted, because the double-kinked arrangement of the housing ends means that they can be securely clamped in the hands of the operator. that this ensures particularly effective guiding and working in a variety of holding positions.
  • the tool preferably at an angle of less than 90 °, in particular by 60 °
  • a small area of the housing receiving the tool being inclined parallel or in alignment with the tool or bent relative to the elongated area and that a small area of the rear end of the housing facing away from the tool is also angled or kinked, preferably by less than 90 °, in particular by 60 °, with respect to the elongated area, is particularly easy to handle with a particularly large number of different holding positions the operator's hands are secured with both one-hand and two-hand operation.
  • the bent, tool-receiving area of the housing has a waist at the kink. points, the fingers of the operating hands are given a particularly secure, defined hold.
  • the housing has an at least partially spherical area in the area of the kink, the operating hands have a comfortable, large-area grip.
  • a lateral indentation is arranged on the side of the spherical area, in particular on each housing shell, further improves the grip security on the housing, with the annular bead on the bent region of the housing receiving the tool near the tool holder, causing unwanted touching of the brush tool prevents the operator's hand and improves work safety.
  • the hand-held power tool has a snap-on clamping device for interchangeable brush tools of different sizes and shapes ensures universal use in the case of quick brush changes.
  • the clamping device can be released by means of a button, the tool change is possible quickly and easily.
  • the button is formed from an area of the ring bead, it is particularly easy to reach by the operator's hand.
  • the fact that the housing is made in shell construction, the bent housing at both ends is torsion and bending resistant and easier to assemble than in pot construction.
  • FIG. 1 shows a side view of an electric brush with a housing angled obliquely in the longitudinal direction
  • FIG. 2 shows a view from above of the electric brush according to FIG. 1
  • FIGS. 3, 4 show two further exemplary embodiments of an electric brush
  • FIGS. 5 to 9 show the exemplary embodiment of the electric brush according to FIG. 1 in different two-hand operating positions
  • Figure 10 this electric brush in one-hand operating position.
  • the handheld tool shown in longitudinal section in FIG. 1 is designed as an electric brush 10 and has a housing 12 which extends in the middle in an approximately cylindrical, elongated manner as the main housing part 12a and which is configured at both ends longitudinally at an angle of approximately 45 ° as a front and rear bend 28, 30 .
  • the main housing part (12a) contains an electric motor 14 which is rotatably connected to an output shaft 18 via a gear 16.
  • the output shaft 18 receives an interchangeably insertable brush tool 20 so that it can be rotatably clamped for rotational driving.
  • the brush tool 20 has a shank-like insertion end, which can be locked in a rotationally fixed manner in a tensioning device of the output shaft 18, which cannot be lost.
  • the transmission housing 12 In its straight middle region, the main housing part 12a, the transmission housing 12 carries on its upper side a switching slide 22 for actuating an electric switch for switching the electric motor 14 on and off.
  • An electric cable emerging from the rear end 30 serves to supply power to the electric motor 14
  • a setting wheel 25 of an electronic speed control is arranged at the end of the rear bend 30 of the housing 12.
  • the main housing part 12a merges into the front, downward bend 28, the upper side of the housing 12 being designed as a knee-like spherical region 26 in the region of the bend 28.
  • the front bend 28 merges at the bottom, at its free end close to the coupling area of the brush tool 20, into an annular bead 34.
  • the annular bead 34 serves to support the operator's guiding hand and is intended to prevent the hand from slipping towards the brush tool 20.
  • a segment area of the annular bead 34 is designed as a pushbutton 32 with which the clamping device (not described in more detail) can be released by pressing it down, so that the brush tool 20 can then be easily removed.
  • a waist 36 is formed between the ball region 26 and the front bend 2E, which gives the handheld power tool 10 a particularly good grip.
  • the housing 12 On the underside opposite the spherical region 26, the housing 12 has a concave-shaped indentation 38 which continues laterally in each of the housing shells 11 and 13 (FIG. 2) in waist-like indentations 38 ', 39.
  • FIG. 2 shows a top view of the exemplary embodiment according to FIG. 1, the switching slide 22 at the top of the main housing part 12a, the housing shells 11, 13 of the housing 12, the spherical region 26, the waist 36 and the waist-like indentations being particularly clear 38 ', 39, the front bend 28, the annular bead 34, the push button 32 and the rear bend 30 can be seen.
  • the exemplary embodiment shown in FIG. 4 differs from the previous exemplary embodiments by a slightly longer region of the front bend 108 without a waist-like indentation and by a rear bend 110 shaped like a pistol grip.
  • FIG. 5 shows the electric brush 10 according to FIGS. 1 and 2 in two-hand operation, the right control hand R encompassing the area of the rear bend 30 like a pistol grip and the left control hand L from above onto the ball area 26 of the front bend 28 engages, the fingers find particularly good hold in the feed 38.
  • FIG. 6 shows the same machine as FIG. 5, the left control hand L holding the area of the rear bend 30 spanned like a pistol grip and the right control hand R holding the housing 12 in the area of the front bend 28 from above or respectively overlaps laterally. In this position, a considerable working pressure can be exerted on the brush tool (not shown) in an ergonomically favorable manner with the right operating hand R.
  • FIG. 7 shows the electric brush 10 when working overhead, the right control hand R embracing the rear bend 30 like a pistol grip and the left control hand L embracing the front bend 28 laterally from below.
  • the left operating hand L can apply high operating forces to the brush tool (not shown) without fatigue.
  • FIG. 8 shows the hand-held power tool in principle as handled in FIG. 7, but the thumb of the left operating hand L does not reach under the housing 12 in the area of the feeder 38, but is supported laterally on the housing shell 11 and thereby has a high lateral Can apply working pressure on the housing 12 and thus on the brush tool, not shown.
  • FIG 9 shows the handling of the hand tool 10, the left control hand L engages under the housing 12 at the front bend 28 in the area of the feed 38 and the right control hand R overlaps the rear bend 30 from above, so that the Hand machine tool 10 can be securely clamped and guided between the left and right operating hand L, R.
  • FIG. 10 shows handheld power tool 10 held in one-hand operation only in the right operating hand R, with the pointing finger and subsequent fingers engages under housing 12 in the area of indentation 38 at front bend 28 and the thumb engages over housing 12 at the top.
  • the machine 10 can also be held securely with a single hand and is suitable for compensating the corresponding reaction forces of the hand tool when working with the brush tool, not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Brushes (AREA)
  • Harvester Elements (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)

Abstract

L'invention concerne une machine-outil (10) tenue avec les mains, comportant un boîtier (12) oblong et un outil (20) rotatif, en particulier une brosse rapportée, qui est placé à un certain angle par rapport à la partie principale de boîtier (12a). Cette machine-outil est d'une manipulation particulièrement simple et sûre grâce au fait que l'outil (20) est fixé sur le boîtier (12) à un angle inférieur à 90°, de préférence de 60° maximum, par rapport à la partie principale de boîtier (12a), une zone du boîtier (12) logeant l'outil (20) étant parallèle à l'outil (20) ou alignée avec celui-ci, et inclinée par rapport à la partie principale de boîtier (12a) pour former une partie désaxée avant (28), et grâce au fait qu'une zone de l'extrémité arrière, opposée à l'outil (20), du boîtier (12) est également coudée à un angle inférieur à 90°, de préférence de 60° maximum, vers le bas par rapport à la partie principale de boîtier (12a), pour former une partie désaxée arrière (30).
EP98931910A 1997-09-24 1998-04-11 Machine-outil tenue avec les mains presentant une partie desaxee avant et une partie desaxee arriere du boitier pour permettre une utilisation a deux mains Expired - Lifetime EP1017545B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29717071U 1997-09-24
DE29717071U DE29717071U1 (de) 1997-09-24 1997-09-24 Handwerkzeugmaschine
PCT/DE1998/001046 WO1999015316A1 (fr) 1997-09-24 1998-04-11 Machine-outil tenue avec les mains presentant une partie desaxee avant et une partie desaxee arriere du boitier pour permettre une utilisation a deux mains

Publications (2)

Publication Number Publication Date
EP1017545A1 true EP1017545A1 (fr) 2000-07-12
EP1017545B1 EP1017545B1 (fr) 2006-11-29

Family

ID=8046388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98931910A Expired - Lifetime EP1017545B1 (fr) 1997-09-24 1998-04-11 Machine-outil tenue avec les mains presentant une partie desaxee avant et une partie desaxee arriere du boitier pour permettre une utilisation a deux mains

Country Status (6)

Country Link
EP (1) EP1017545B1 (fr)
JP (1) JP2001517560A (fr)
CN (1) CN1145546C (fr)
BR (1) BR9812670A (fr)
DE (2) DE29717071U1 (fr)
WO (1) WO1999015316A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6886614B2 (en) 2002-05-16 2005-05-03 Hunt Holdings, Inc. Pencil sharpener
ATE458589T1 (de) * 2004-07-02 2010-03-15 Black & Decker Inc Kraftwerkzeug
JP5431744B2 (ja) * 2009-02-10 2014-03-05 株式会社やまびこ トップハンドル式携帯動力作業機
DE102009027640A1 (de) * 2009-07-13 2011-01-20 Robert Bosch Gmbh Handwerkzeugmaschine mit Zweihanderfassung
CN110613395B (zh) * 2019-08-07 2021-09-07 尚科宁家(中国)科技有限公司 一种手持式清洁装置
CN111890193A (zh) * 2020-06-22 2020-11-06 苏州安萃普智能科技有限公司 手持电动工具

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129334B (en) * 1982-11-04 1985-12-04 Chubb Fire Security Ltd Fluid discharging device
DE3323219A1 (de) * 1983-06-28 1985-01-10 Robert Bosch Gmbh, 7000 Stuttgart Elektrohandwerkzeug mit einem geteilten gehaeuse
IT8521635U1 (it) * 1985-04-24 1986-10-24 Magic Line Spa Combinazione da viaggio, composta da ferro da stiro ed asciugacapelli elettrici, che utilizzano una impugnatura munita di cavo di alimentazione interruttore e contatti di trasmissione elettrica, amovibile e comune per i due apparecchi
GB8917391D0 (en) * 1989-07-29 1989-09-13 Bruce Andrew G C Implements with handles
US5125130A (en) * 1990-07-12 1992-06-30 Stanish Walter F Ergonomic handle for tools and sporting equipment
GB9323110D0 (en) * 1993-11-09 1994-01-05 Black & Decker Inc Improved shaft assembly
GB9325353D0 (en) * 1993-12-10 1994-02-16 Black & Decker Inc Improved electrically powered tool
US5423102A (en) * 1994-08-19 1995-06-13 Madison; Ava Portable cleaning device
SE9502145L (sv) * 1995-06-13 1996-12-14 Ergonomi Design Gruppen Ab Portabelt eldrivet verktyg
DE19547332A1 (de) * 1995-12-19 1997-06-26 Bosch Gmbh Robert Elektrohandwerkzeugmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9915316A1 *

Also Published As

Publication number Publication date
CN1145546C (zh) 2004-04-14
EP1017545B1 (fr) 2006-11-29
BR9812670A (pt) 2000-08-22
CN1271307A (zh) 2000-10-25
DE29717071U1 (de) 1999-02-04
JP2001517560A (ja) 2001-10-09
WO1999015316A1 (fr) 1999-04-01
DE59813832D1 (de) 2007-01-11

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