WO2009138270A1 - Werkzeugmaschine, insbesondere handgehaltene werkzeugmaschine - Google Patents
Werkzeugmaschine, insbesondere handgehaltene werkzeugmaschine Download PDFInfo
- Publication number
- WO2009138270A1 WO2009138270A1 PCT/EP2009/053045 EP2009053045W WO2009138270A1 WO 2009138270 A1 WO2009138270 A1 WO 2009138270A1 EP 2009053045 W EP2009053045 W EP 2009053045W WO 2009138270 A1 WO2009138270 A1 WO 2009138270A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- saw blade
- machine tool
- support
- tool according
- axis
- Prior art date
Links
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D49/00—Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
- B23D49/10—Hand-held or hand-operated sawing devices with straight saw blades
- B23D49/16—Hand-held or hand-operated sawing devices with straight saw blades actuated by electric or magnetic power or prime movers
- B23D49/162—Pad sawing devices
- B23D49/167—Pad sawing devices with means to adjust the guide plate or with means to adjust the plane in which the saw blade moves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
- B23D51/02—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of beds; of guiding arrangements for work-tables or saw carriers; of frames
- B23D51/025—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of beds; of guiding arrangements for work-tables or saw carriers; of frames of arrangements for guiding the saw blade
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/687—By tool reciprocable along elongated edge
Definitions
- Machine tool in particular hand-held machine tool
- the invention relates to a machine tool, in particular a hand-held machine tool, according to the preamble of claim 1.
- Machine tools of the aforementioned type are known from EP 1 598 136 B1, in the embodiment as a jigsaw, in which the saw blade is driven in a liftable manner and works in exclusively stroke-mobile drive in normal operation. If the liftable drive has a pivoting movement superimposed on a pivot axis lying transversely to the plane of the saw blade, then the jigsaw operates in pendulum stroke mode. Another mode is given when the jigsaw is to be operated as a so-called scrolling jigsaw. Then, in addition to the lifting drive of the saw blade, a rotatability about a rotational axis extending in its longitudinal direction is given, so that the respective working direction is essentially to be adjusted by rotation of the saw blade.
- the saw blade is acted upon on the back side by a support arrangement, which is fixed to the saw blade or to the lifting rod of the saw blade substantially concentrically and co-rotating and which has a support roller acting as the saw blade back support member.
- This is supported on a running in the longitudinal direction of the axis of rotation arm, which has a small pivoting movement in the direction of the saw blade plane.
- This Hubbewegige is in Pendelhubmodus the joint pivotability of the Hubstangen Entry with the support assembly superimposed on the pivot axis lying transversely to the blade plane, while in the scrolling mode a common rotatability of the lifting rod of the saw blade and the support arrangement is provided for the saw blade.
- This requires regardless of the particular work conditions in a rotational position practically the same orientation of the support arrangement for saw blade, thereby leaves a variation of the support conditions in view of different working conditions hardly and also leads to a relatively complex structure.
- the invention is based, at least without further complication of the structure improved conditions for the creation of different support conditions to achieve the task.
- this is achieved in that the support assembly towed over the saw blade rotates with this.
- For the support arrangement is thus one in the position of their
- the movement play which entails a dragging entrainment of the support arrangement by the saw blade, and on the other hand by the selected position of the axes of rotation to each other as well as to realize the desired working conditions by the design of the support contours.
- the support arrangement it proves appropriate for the support arrangement to provide a guide along a guideway which partially surrounds the saw blade, the pole of which may preferably lie adjacent to the axis of rotation of the saw blade, possibly also concentrically therewith, the guideway also being at different distances in its course can be realized to their pole, in order to influence in this way on the Abstweiltechnik.
- the guide track is designed as a slide guide, so that the support arrangement in the connection of the guide rail to the saw blade back expediently has a support arm and is supported against the saw blade back via a support member which is designed in particular as a support roller.
- the support roller is advantageously formed circumferentially vaulted, suitably such that they have a
- Has rounding radius whose size corresponds to the distance of the axis of rotation of the saw blade to the saw blade back.
- running against the edges of a stronger curvature can be provided.
- In the context of the invention is also a positionally fixed to the support arrangement of the arrangement
- Supporting element optionally also in the form of a non-rotatably mounted support roller, wherein the support member may have a correspondingly vaulted support contour, or may also be provided with a channel-shaped receptacle for the saw blade back.
- an embodiment proves to be useful as a support fork, which is held via corresponding sliding blocks in the guide slot, which may be provided as sliding blocks pins, rollers or the like.
- the support arm not only on the guide link, but - at
- FIG. 1 is a schematic representation of a designed as a hand-held machine tool, electrically driven jigsaw, are provided for the different modes of operation,
- Fig. 4 is a bridge-like support of the support arm of the support assembly
- FIG. 5 is a further schematic representation of the assignment of the saw blade to a support element of the support arrangement.
- FIG. 1 illustrates a hand-held machine in the form of a jigsaw 2, which has a housing 3 and which is supported on a workpiece 5 via a foot plate 4.
- this In front in the working direction 6 area of the jigsaw 2, this has a saw blade 8 as a working tool 7. This engages in the working operation on the workpiece 5, on which the jigsaw 2 is slidably supported on the base plate 4.
- a handle 11 is provided in the vertical direction opposite to the lockable about an axis extending in the direction of rotation 6 axis base plate 4, the handle bar 12 tapers to a guide knob 14. Under gripping the handle bar 12 is a
- Switch arrangement 15 is provided, via which the jigsaw 2 is switched on and off. Different modes of operation of the jigsaw 2 can be adjusted over the longitudinal direction of the housing 3 provided switching device 16.
- the end wall portion 13 of the housing 3 is tapered to the
- the step 17 covers the tool holder 18 for the driven working tool 7 formed by the saw blade 8.
- Machine tool 1 has a basic working position, in which, as indicated by the arrow 19, is driven only liftable and is aligned in the direction of the longitudinal axis of the jigsaw 2, not shown.
- the back 9 of the saw blade 8 is associated with a support 20, which comprises a support arrangement 37.
- the support 20 is driven by a drive, not shown, in the direction of the plane of the saw blade 8 (arrow 23). This results in another working mode, namely the so-called
- Pendulum lifting in which the saw blade 8 superimposed on a transverse to its plane, not shown pivot axis for extending in the longitudinal direction of the saw blade 8 lifting movement (arrow 19) is pivotable.
- the saw blade 8 is pivotable in addition to the lifting movement in the direction of its longitudinal axis about an axis of rotation 22 extending in its direction, which is indicated schematically in FIG.
- the saw blade 8 is adjustable in its straightforward working direction according to arrow 6 angular working directions, so that the jigsaw 2 is usable as a so-called "scrolling jigsaw” and is operated at a correspondingly controlled adjustment as a semi-autonomous jigsaw 2. This takes the jigsaw 2 holding user essentially only the roughly aligned to the working direction 6 feed, while an exact, aligned to a path specification positioning by adjusting the saw blade 8 takes place on one of these Wegvorgabe corresponding rotational position.
- Fig. 2 and 3 illustrate the support 20 with its support assembly 37.
- the support 20 includes the pendulum stroke in the direction of arrow 23 hubbeweglich driven, otherwise positionally fixed, in particular locked drive arm 24, in one of the drive assembly 17 associated, designed as a guide slot 25 guideway 26 expires.
- the guideway 26 extends approximately semicircular around the axis of rotation 22 of the saw blade 8. Guided are in the provided on the drive arm 24 guide slot 25 of the guideway 26 sliding blocks 27, which are provided on a support arm 28. As sliding blocks 27, two support pins 29 are provided in the exemplary embodiment, which are spaced apart in the extension direction of the guide track 26.
- Support arm 28 extends from the drive arm 24 against the saw blade 8 and runs against the saw blade 8 in fork arms 30, between which in the embodiment of FIG. 2 as a support member 31, a guide roller 32 and in the embodiment of FIG. 3, a roller-shaped guide body 33 is located ,
- the guide roller 32 has a guide groove on the circumference, in which the saw blade 8 engages with its saw blade back 9 and which engages over the flanks of the saw blade 8 in the back area.
- the roller-shaped guide body 33 has circumferentially on a concave vaulted support surface 34, as illustrated schematically in Fig. 5, against which the saw blade 8 rests on the back side and the concave vaulted shape to the saw blade 8 rests only on the saw blade backs 9.
- the saw blade back 9 is, as FIG. 5 shows, preferably rounded, so that the guide track 34 a
- support pin 29 is only for example, and it can be used instead of such support pin 29, other shape elements, as well as adapted in radius forms on the support arm 28 or spring bolts, which also allow a certain elasticity in the back-side support of the saw blade 8.
- the support arm 28 can in the context of the invention additionally - as shown in Fig. 4 - be rotatably supported outside the range of the saw blade 8, for example by a bracket 28 attached to the bracket 35, the axis parallel to the axis of rotation 22 of the saw blade 8, for example the lifting rod 36 is rotatably supported via a sleeve 38, or the in otherwise, in particular offset axially to the lifting rod 36 is mounted on the not shown, the housing side supported Hubstangen entry.
- Such a construction can contribute to a more stable support and more accurate guidance with little effort. Otherwise, the representation according to FIG. 4 corresponds to that of FIGS. 2 and 3, to which reference is made.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009801171090A CN102026758A (zh) | 2008-05-14 | 2009-03-16 | 工具机、尤其是手持式工具机 |
US12/992,753 US20110126687A1 (en) | 2008-05-14 | 2009-03-16 | Power tool, especially hand-held power tool |
JP2011508848A JP2011520627A (ja) | 2008-05-14 | 2009-03-16 | 工作機械、特に手持ち式の工作機械 |
EP09745603A EP2282865A1 (de) | 2008-05-14 | 2009-03-16 | Werkzeugmaschine, insbesondere handgehaltene werkzeugmaschine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008001769.8 | 2008-05-14 | ||
DE200810001769 DE102008001769A1 (de) | 2008-05-14 | 2008-05-14 | Werkzeugmaschine, insbesondere handgehaltene Werkzeugmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009138270A1 true WO2009138270A1 (de) | 2009-11-19 |
Family
ID=40681811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/053045 WO2009138270A1 (de) | 2008-05-14 | 2009-03-16 | Werkzeugmaschine, insbesondere handgehaltene werkzeugmaschine |
Country Status (7)
Country | Link |
---|---|
US (1) | US20110126687A1 (de) |
EP (1) | EP2282865A1 (de) |
JP (1) | JP2011520627A (de) |
CN (1) | CN102026758A (de) |
DE (1) | DE102008001769A1 (de) |
RU (1) | RU2010150847A (de) |
WO (1) | WO2009138270A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008002678A1 (de) * | 2008-06-26 | 2009-12-31 | Robert Bosch Gmbh | Handhubsägemaschine |
DE102009000032A1 (de) * | 2009-01-05 | 2010-07-08 | Robert Bosch Gmbh | Motorisch angetriebene Werkzeugmaschine |
CN102049645A (zh) * | 2010-11-25 | 2011-05-11 | 项大清 | 一种金刚石排锯焊接机的支架 |
DE102012210164A1 (de) * | 2012-06-18 | 2013-12-19 | Robert Bosch Gmbh | Verfahren zum Herstellen eines Sägeblatts |
DE102013219764B4 (de) * | 2013-09-30 | 2023-07-13 | Robert Bosch Gmbh | Werkzeugmaschine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2399314A (en) * | 2003-03-13 | 2004-09-15 | Black & Decker Inc | Tool having rotatable adjustment means for power working member |
EP1598136A1 (de) * | 2004-05-18 | 2005-11-23 | BLACK & DECKER INC. | Anordnung eines Ausgangsstössels und motorisiertes Werkzeug mit einer solchen Anordnung |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1940483A (en) * | 1931-01-14 | 1933-12-19 | Maimin Company Inc H | Cloth cutting machine |
US3038508A (en) * | 1960-09-21 | 1962-06-12 | Lawrence J Moran | Guide for jigsaw blade |
US3260290A (en) * | 1964-04-16 | 1966-07-12 | Singer Co | Attachment for sabre saw for flush cutting and side cutting |
US3494391A (en) * | 1968-04-24 | 1970-02-10 | Singer Co | Sabre saws with 360 degree swivel saw bars |
US3542097A (en) * | 1968-05-02 | 1970-11-24 | Singer Co | Chuck assembly for sabre saws |
US3547166A (en) * | 1968-07-03 | 1970-12-15 | Singer Co | Chuck attachment for sabre saws |
US4091701A (en) * | 1976-11-01 | 1978-05-30 | Gerber Garment Technology, Inc. | Cutting machine having roller blade guide |
US4327621A (en) * | 1979-10-26 | 1982-05-04 | Hobart Corporation | Self steering blade guide for a band saw |
US4545123A (en) * | 1984-04-09 | 1985-10-08 | Skil Corporation | Combination jig saw adjusting mechanism |
DE3511692A1 (de) * | 1985-03-28 | 1986-10-02 | Black & Decker Inc., Newark, Del. | Drehblattstichsaege |
JPH0755468B2 (ja) * | 1989-09-20 | 1995-06-14 | 株式会社川上製作所 | 積層物の裁断装置 |
ATE161462T1 (de) * | 1994-04-26 | 1998-01-15 | Investronica Sa | Vorrichtung zum führen eines hängemessers in einer schneidmaschine zum schneiden von blattmaterial |
ATE391573T1 (de) * | 2004-05-18 | 2008-04-15 | Black & Decker Inc | Kraftwerkzeug mit einem betriebsartauswahlmechanismus |
DE602004016468D1 (de) * | 2004-05-18 | 2008-10-23 | Black & Decker Inc | Haltevorrichtung für die Ausgangswelle eines hin- und herbewegbaren Kraftwerkzeugs |
-
2008
- 2008-05-14 DE DE200810001769 patent/DE102008001769A1/de not_active Withdrawn
-
2009
- 2009-03-16 CN CN2009801171090A patent/CN102026758A/zh active Pending
- 2009-03-16 US US12/992,753 patent/US20110126687A1/en not_active Abandoned
- 2009-03-16 EP EP09745603A patent/EP2282865A1/de not_active Withdrawn
- 2009-03-16 RU RU2010150847/02A patent/RU2010150847A/ru not_active Application Discontinuation
- 2009-03-16 WO PCT/EP2009/053045 patent/WO2009138270A1/de active Application Filing
- 2009-03-16 JP JP2011508848A patent/JP2011520627A/ja not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2399314A (en) * | 2003-03-13 | 2004-09-15 | Black & Decker Inc | Tool having rotatable adjustment means for power working member |
EP1598136A1 (de) * | 2004-05-18 | 2005-11-23 | BLACK & DECKER INC. | Anordnung eines Ausgangsstössels und motorisiertes Werkzeug mit einer solchen Anordnung |
Also Published As
Publication number | Publication date |
---|---|
DE102008001769A1 (de) | 2009-11-19 |
EP2282865A1 (de) | 2011-02-16 |
JP2011520627A (ja) | 2011-07-21 |
US20110126687A1 (en) | 2011-06-02 |
CN102026758A (zh) | 2011-04-20 |
RU2010150847A (ru) | 2012-06-20 |
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