WO2011038979A1 - Dispositif de butée pour une machine-outil à main - Google Patents

Dispositif de butée pour une machine-outil à main Download PDF

Info

Publication number
WO2011038979A1
WO2011038979A1 PCT/EP2010/061864 EP2010061864W WO2011038979A1 WO 2011038979 A1 WO2011038979 A1 WO 2011038979A1 EP 2010061864 W EP2010061864 W EP 2010061864W WO 2011038979 A1 WO2011038979 A1 WO 2011038979A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
depth stop
stop
depth
stop device
Prior art date
Application number
PCT/EP2010/061864
Other languages
German (de)
English (en)
Inventor
Milan Bozic
Siegfried Fehrle
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 CN201080043956XA priority Critical patent/CN102548720A/zh
Priority to RU2012117573/13A priority patent/RU2012117573A/ru
Priority to EP10743119A priority patent/EP2483041A1/fr
Publication of WO2011038979A1 publication Critical patent/WO2011038979A1/fr

Links

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
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/29—Details; Component parts; Accessories
    • B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
    • B27B5/32—Devices for securing circular saw blades to the saw spindle
    • 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
    • B27B19/00—Other reciprocating saws with power drive; Fret-saws
    • B27B19/006—Other reciprocating saws with power drive; Fret-saws with oscillating saw blades; Hand saws with oscillating saw blades

Definitions

  • the present invention relates to a stop device, in particular a depth stop, for a tool of a hand tool and a hand tool, in particular a hand tool with an oscillating drive shaft, according to the preamble of claim 1 and claim 9 of the present application.
  • a generic hand tool is known with rotating, in particular oscillating drivable, cutting or cutting, round and / or square disc-shaped tool, in particular saw blade, with the cutting a kerf in a workpiece is produced, the tool with its radially inner portion with the driver having acting inner flange of the output shaft, wherein the radially inner region of the tool arranged a plurality of pitch circles as entrainment or depressions as engagement means for the positive, backlash-free engagement in a plurality of mandrel-like, arranged on a same pitch circle of the driver projections.
  • This entrainment system only allows the use of tools with a number of entrainment openings corresponding exactly to the number of projections. So far, tools with a different number of driving openings not on the o. G. Driver or on this hand tool machine tensioned or used.
  • a generic stop device in particular depth stop for a hand tool with a simple to produce and easy to use, lightweight, handy device for cutting depth limitation in particular for sawing is created, which can be clamped and used universally with different drivers, provided the drivers of the power tool have their thorn-like projections on a matching, the Mit Spotifyö réelleen of the tool and the depth stop corresponding pitch circle.
  • the good handiness of the power tool when using the depth stop - in contrast to the known solutions - affected in any way.
  • a secure protection of the tool is possible, e.g. when a wood saw blade threatens to come into contact with masonry or concrete when cutting wood with a defined depth of cut and would thereby be damaged or at least blunted.
  • the penetration depth can be precisely and reproducibly set independently of the angular position of the saw blade. Because the contact surface of the depth stop is relatively large, scratch-sensitive materials can be processed without being damaged by the depth stop.
  • Segments of different radial diameter stages is designed, the smallest diameter stage is greater than or equal to the size of the natural depth limit of the tool, different cutting depths are quickly and accurately adjustable.
  • the depth stop is arranged twice and axially on both sides of the saw blade, is supported on both sides of the kerf on the workpiece, the depth of cut can be realized even more accurately.
  • the hand tool is an oscillating grinder
  • the saw blade executes a rotary stroke with a certain angle
  • an advantageous, safe application of the new depth impact is possible, which is also applicable to angle grinder in other variants.
  • the tool has at least one, preferably two evenly spaced on the pitch circle, entrainment opening (s) for, in particular selective positive or non-positive engagement in each case at least one, preferably two, the mandrel-like projections of the driver, wherein the tool in the region Partial circle between the driving openings is free of engagement means for the projections, so that this area of the tool safely remains out of shape or adhesion with the projections, the tool is suitable both on drivers with twelve arbor-like projections as well as on carriers with a different number of protrusions - provided that the pitch circle diameters are the same.
  • disc-like means is arranged, which releases relative to its outer edge intended for penetration into the kerf portion of the tool in a defined degree and from the defined measure on hinders further penetration into the kerf, as soon as the edge reaches the workpiece for support, wherein the disc-shaped tool cup-shaped and also the depth stop in the same direction are designed cup-shaped, wherein the depth stop occurs in the concave cup-shaped portion of the tool and / or that he vice versa the tool receives axially supporting in its concave pot-shaped region, a reliable and accurate depth stop for cranked tools is created.
  • the depth stop is positively coupled via its radially inner region with the acting as a driver inner flange of the output shaft, the inner flange on its side facing the tool with several, in particular two or three or a multiple of two or three, preferably twelve, thorn-like Projections is provided which engage for play-free rotational drive of the depth stop in a plurality of entrainment pockets, in particular two or three or a multiple of two or three, of the depth stop, wherein the projection ge and the entrainment pockets sit on a same sized pitch circle, the depth stop is universally usable with drivers of different numbers of projections - provided that the pitch circle diameter are the same.
  • each entrainment pocket of the depth stop sits in a fork with two tine-shaped axial elevations, wherein these axial elevations can be supported with their outer sides on further, adjacent thorn-like projections of the driver, the form-fit clamping of the depth stop on carriers with a maximum of twelve projections especially safe.
  • the depth stop can be adjusted in a positionally positionable position relative to the tool, different cutting depths can be set conveniently and safely.
  • Figure 1 shows a hand tool according to the invention with oscillating drivable tool with depth stop - shown schematically
  • Figure 2 is a side sectional view of the driver
  • FIG. 3 shows a plan view of the driver according to FIG. 2,
  • Figure 4 is a side sectional view of the driver with attached tool and depth stop
  • Figure 5 is a plan view of a cranked segment saw blade
  • Figure 6 is a plan view of the depth stop
  • Figure 7 is a side sectional view of the depth stop
  • Figure 8 is a side view of an embodiment of a depth stop
  • Figure 9 is a side view of another embodiment of a depth stop embodiment
  • besipielhafte hand tool 10 has an elongated housing 12 having a longitudinal axis 13, which carries on its upper side a switch button 14 for switching on and off of the seated in the housing 12, not shown engine.
  • the motor is connected via a cable 16 to a power supply or is fed directly from a battery. It transmits its movement to a front mounted in the housing 12 output shaft 18 having an axis 20.
  • the axis 20 occurs in this example at an angle, substantially perpendicular to the longitudinal axis 13 of the housing 12 and carries at its end an inner flange 24, at the same time as Driver 19 is used.
  • the output shaft 18 carries on its inner flange 24 a releasably tensioned, oscillating drivable, substantially planar tool 22, which is configured as a flat, circular segment saw blade 22a and the between the inner and an outer flange 24, 26 rotatably clamped by means of a clamping screw 27 formed as fastening means is.
  • the plane saw blade 22a carries directly on its axial outside a circular disc-shaped depth stop 28, as it is known from DE 10 2008 001 234 AI. During sawing, the saw blade 22a is guided into a workpiece 90 by machining, in which case the immersion depth or depth of cut via the depth stop 28 is selectively or adjustably limited.
  • the driver 19 shown in Figure 2 in a side sectional view is part of the inner flange 24, which sits at the end of the output shaft 18 and carries on its side facing the saw blade 22a twelve mandrel-like projections 21, the play-free engagement in matching driving holes 30 of the saw blade 22a or in carrying pockets of the depth stop 28 serve.
  • Screw opening 23 is used to engage the clamping screw 27 for screwing the outer flange 26 for the purpose of clamping the tool 22nd
  • the driver 19 shown in Figure 3 as a plan view of Figure 2 shows the twelve mandrel-like projections 21 as radially evenly spaced on a pitch circle 29 arranged, small circles and as a central circle, the central screw opening 23rd
  • tools 220 are also known which have a receiving area protruding from a plane of the tool, in particular a cranked area.
  • the saw blade 220a is arranged directly adjacent to the driver 19, in that the driving openings 30 overlap the corresponding projections 21 in a form-fitting manner for play-free rotational driving.
  • the projections 21 have an axial length such that they completely pass through the entrainment openings 30, project beyond the rear flat side of the saw blade 22 and engage in two, preferably three or more entrainment pockets 34 of the likewise bent depth stop 280 for its form-locking rotational drive.
  • the entrainment pockets 34 are arranged in a circumferential region of a contact surface 340.
  • the depth stop 280 is supported on the workpiece 90 during machining, in particular during sawing when reaching a corresponding depth of cut or penetration depth with its relatively wide, large-area outer edge 290 and thus limits the penetration depth of the tool 220, in particular of the saw blade 220a into the workpiece 90 This cutting depth or penetration depth can then be effortlessly maintained over long cutting lengths. This avoids unsuitable sawing results due to too flat kerf or unnecessary sawing due to too deep kerf.
  • its outer edge 290 is radially closer or further away from the outer edge of the tool 220, in particular the saw blade 220 a, so that accordingly the maximum depth of cut can be easily predefined or changed by selecting the desired depth stop.
  • the depth stop 280 is designed such that its outer edge 290 is supported axially on a flat side 224 of the tool 220, in particular the saw blade 220 a, facing it.
  • the outer edge 290 in particular on a flat side 224 side facing a substantially flat contact surface 340 substantially parallel contact surface 292. This causes a measurable vibration damping of the tool 220, in particular saw blade 220a eg when sawing cement joints in tile surfaces during repair and rehabilitation work.
  • FIG. 5 shows a plan view of the cranked segment saw blade 220a with a row of teeth 222 and a central hole 25 for the passage of the clamping screw 27.
  • the hole 25 is located centrally in the bottom 331 in a cup-like offset 33.
  • the crank 33 has a depth of about 8 mm and extends at a radial distance of about 15 mm from the center of the saw blade 220a.
  • In the bottom 331 of the crank 33 are arranged between the outer edge of the crank and the center of the saw blade on a pitch circle 3 uniformly spaced driving openings 30, which serve to frictionally with three of the twelve projections 21 of the driver 19.
  • On the pitch circle between the driving apertures 30 are three adjacent to the driving holes 30, arcuate Segmentnuten 32 are arranged.
  • the outer edges of the forks 35 are supported in each case laterally from the next adjacent projections 21 of the driver 19, so that thus the clamping position of the depth stop 35 is set particularly secure against rotation.
  • FIG. 7 shows a side sectional view of the depth stop 280, which illustrates the details according to FIG.
  • the depth stop 280 can also have a plurality of stepped outer edges 290, each with a different diameter, so that different penetration depths or cutting depths can be achieved by changing the rotational position relative to the tool 220.
  • FIG. 8 shows a corresponding exemplary embodiment which has a total of 5 segments 294a to 294e, each with different diameter steps 296. However, more or less segments with varying diameter steps 296 may be provided.
  • a recess 298 is provided for between each through-segment 294a to 294e, which ensures a secure transition between adjacent diameter steps 296.
  • Vorzusgweise can be besipiellus provided on one or both side surfaces 297 a mark 299 for easier selection of the adjustable penetration or depth of cut.
  • Figure 9 shows a second embodiment of a depth stop 280 in which the outer edge 290 is a substantially continuous change in the Diameter has.
  • a compensation is provided between the edge region with the smallest diameter and the edge region with the largest diameter.
  • the raised collar of the outer edge 290 may be provided to facilitate the selection of the adjustable depth of penetration or depth of cut markings 299a, such as depressions or elevations.
  • marks 299 similar to the exemplary embodiment from FIG. 8 can be provided for the mark 299 on one or both side surfaces 297.
  • the markings 299 are provided at least in two parallel extending, the periphery of the depth stop rows, which illustrate depending on a diameter of the tool 220, the adjustable penetration depth or depth of cut.
  • the invention is suitable for battery-powered or pneumatic-powered hand tool machines or for any type of drive, in particular for their use-separating tools such as flat circular saw blades or segment cutting tools.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)

Abstract

L'invention concerne un dispositif de butée, en particulier une butée de profondeur (280), pour un outil (22, 220) d'une machine-outil à main, qui présente une forme de disque angulaire et/ou rond, qui peut être entraîné en rotation, en particulier de manière oscillante, et qui est destiné au découpage ou à l'usinage par enlèvement de copeaux, l'outil étant en particulier une lame de scie, ladite lame de scie permettant de réaliser un trait de scie (92) par enlèvement de copeaux dans une pièce (90). Ledit dispositif de butée comprend un moyen en forme de disque qui est agencé de manière axialement adjacente à l'outil (22, 220), de préférence en s'appuyant axialement sur celui-ci, libère, dans une mesure définie, une partie déterminée de l'outil (22) par rapport à son bord extérieur (290) afin qu'elle puisse pénétrer dans le trait de scie (92) et, à partir de la mesure définie, empêche une pénétration plus importante dans le trait de scie (92), dès que le bord (290) vient en appui sur la pièce (90). Selon l'invention, l'outil en forme de disque (22, 220) se présente sous la forme d'un pot, le dispositif de butée, en particulier la butée de profondeur (280), se présentant également sous la forme d'un pot parfaitement ajusté dans le même sens, la butée de profondeur (280) pénétrant dans une zone en forme de pot concave de l'outil (22, 220) et/ou, à l'inverse, recevant l'outil (22, 220) dans sa zone en forme de pot concave en le soutenant axialement.
PCT/EP2010/061864 2009-09-30 2010-08-16 Dispositif de butée pour une machine-outil à main WO2011038979A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201080043956XA CN102548720A (zh) 2009-09-30 2010-08-16 用于手持式工具机的止挡装置
RU2012117573/13A RU2012117573A (ru) 2009-09-30 2010-08-16 Ограничительное устройство для ручной машины
EP10743119A EP2483041A1 (fr) 2009-09-30 2010-08-16 Dispositif de butée pour une machine-outil à main

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE202009013147.5 2009-09-30
DE200920013147 DE202009013147U1 (de) 2009-09-30 2009-09-30 Handwerkzeugmaschine mit oszillierend antreibbarem Werkzeug
DE102010030739.4 2010-06-30
DE102010030739A DE102010030739A1 (de) 2009-09-30 2010-06-30 Anschlagvorrichtung für eine Handwerkzeugmaschine

Publications (1)

Publication Number Publication Date
WO2011038979A1 true WO2011038979A1 (fr) 2011-04-07

Family

ID=41427773

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/061864 WO2011038979A1 (fr) 2009-09-30 2010-08-16 Dispositif de butée pour une machine-outil à main

Country Status (5)

Country Link
EP (1) EP2483041A1 (fr)
CN (2) CN102548720A (fr)
DE (3) DE202009013147U1 (fr)
RU (1) RU2012117573A (fr)
WO (1) WO2011038979A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10843282B2 (en) 2017-08-16 2020-11-24 Imperial Blades Oscillating blade with universal arbor engagement portion

Families Citing this family (15)

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Publication number Priority date Publication date Assignee Title
US9073195B2 (en) 2010-04-29 2015-07-07 Black & Decker Inc. Universal accessory for oscillating power tool
US8925931B2 (en) 2010-04-29 2015-01-06 Black & Decker Inc. Oscillating tool
US9186770B2 (en) 2010-04-29 2015-11-17 Black & Decker Inc. Oscillating tool attachment feature
US9149923B2 (en) 2010-11-09 2015-10-06 Black & Decker Inc. Oscillating tools and accessories
DE102010063103A1 (de) * 2010-12-15 2012-06-21 Robert Bosch Gmbh Bearbeitungseinheit, zum Einarbeiten von Längsnuten in Gegenstände
EP2739825A4 (fr) * 2011-08-03 2016-07-27 Joy Mm Delaware Inc Système de manipulation de matériau pour haveuse
CN102430799A (zh) * 2011-09-08 2012-05-02 中国人民解放军第四军医大学 一种电子专业多用途微型电切锯
DE102012211942A1 (de) 2012-07-09 2014-01-09 Robert Bosch Gmbh Schnitttiefenbegrenzungsvorrichtung
USD832666S1 (en) 2012-07-16 2018-11-06 Black & Decker Inc. Oscillating saw blade
DE102015015640B4 (de) * 2014-12-18 2020-07-23 Makita Corporation Bearbeitungsvorrichtung
US10265778B2 (en) 2017-01-16 2019-04-23 Black & Decker Inc. Accessories for oscillating power tools
USD814900S1 (en) 2017-01-16 2018-04-10 Black & Decker Inc. Blade for oscillating power tools
CN107263177B (zh) * 2017-06-30 2023-07-04 中重科技(天津)股份有限公司 快速拆换可靠运行锯片安装结构
DE102019208919A1 (de) * 2019-06-19 2020-12-24 Robert Bosch Gmbh Sägewerkzeugmaschine
DE102020210630A1 (de) 2020-08-20 2022-02-24 Robert Bosch Gesellschaft mit beschränkter Haftung Handwerkzeugmaschine

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DE102008001234A1 (de) 2008-04-17 2009-10-29 Robert Bosch Gmbh Handwerkzeugmaschine mit oszillierend antreibbarem Werkzeug

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Publication number Priority date Publication date Assignee Title
US5303471A (en) * 1992-07-08 1994-04-19 Dante Liberatoscioli Attachment arrangement for reciprocating power saw
DE102007058889A1 (de) * 2007-06-11 2008-12-18 Robert Bosch Gmbh Sägeblatt für Werkzeugmaschinen
DE102008001234A1 (de) 2008-04-17 2009-10-29 Robert Bosch Gmbh Handwerkzeugmaschine mit oszillierend antreibbarem Werkzeug

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10843282B2 (en) 2017-08-16 2020-11-24 Imperial Blades Oscillating blade with universal arbor engagement portion
US11344960B2 (en) 2017-08-16 2022-05-31 Imperial Blades Oscillating blade with universal arbor engagement portion

Also Published As

Publication number Publication date
CN102069483B (zh) 2015-05-20
CN102548720A (zh) 2012-07-04
DE102010030739A1 (de) 2011-03-31
RU2012117573A (ru) 2013-11-20
DE202009013147U1 (de) 2009-12-17
CN102069483A (zh) 2011-05-25
EP2483041A1 (fr) 2012-08-08
DE102010030744A1 (de) 2011-04-07

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