WO2009068344A1 - Handwerkzeugmaschine - Google Patents
Handwerkzeugmaschine Download PDFInfo
- Publication number
- WO2009068344A1 WO2009068344A1 PCT/EP2008/063024 EP2008063024W WO2009068344A1 WO 2009068344 A1 WO2009068344 A1 WO 2009068344A1 EP 2008063024 W EP2008063024 W EP 2008063024W WO 2009068344 A1 WO2009068344 A1 WO 2009068344A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bearing ring
- bearing
- ring
- receptacle
- predetermined breaking
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/06—Means for driving the impulse member
- B25D11/062—Means for driving the impulse member comprising a wobbling mechanism, swash plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/14—Special methods of manufacture; Running-in
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/065—Details regarding assembling of the tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/225—Serrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/60—Shaping by removing material, e.g. machining
- F16C2220/70—Shaping by removing material, e.g. machining by grinding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/80—Shaping by separating parts, e.g. by severing, cracking
- F16C2220/84—Shaping by separating parts, e.g. by severing, cracking by perforating; by punching; by stamping-out
Definitions
- the invention relates to a hand tool according to the preamble of claim 1, and an assembly method for this purpose.
- Hand tool machines of the aforementioned type with a driven member, which is guided in a bearing ring, which is arranged in an annular, enclosing bearing mount, are known in practice.
- the bearing housing enclosing part of the bearing seat is formed by the free end of a penetrated by the output member neck of an intermediate flange.
- a radial access to the output member, either to the drive and / or in connection with the assembly is possible due to the closed formation of bearing ring and bearing receptacle only outside of the range of the bearing support. This impairs the mounting options and the possibilities for the drive-side access to the output member and requires for the intermediate flange in positioning the drive access in the region of the intermediate flange a corresponding length.
- the invention is related to a hand tool of the type mentioned above, the object of the access expand on the output member without making it difficult to mount the bearing ring in the bearing receptacle and / or affect the leadership quality of the bearing ring for the output member.
- This design of the bearing ring makes it possible not only to produce this as a closed bearing ring, but also suitable to use in the encompassing, circular or oval-annular bearing mount, so that the bearing ring, regardless of manufacturing and / or material-related residual stresses, for insertion into the bearing receptacle in its nominal shape is present and due to the support in the bearing receiving the manufactured and designed on the shape-retaining support in the bearing receptacle also retains if the open ring shape is prepared by removing, in particular breaking out of predetermined separation points, in particular predetermined breaking points, delimited peripheral portion.
- the bearing ring can be used in accordance with the respective fits in the bearing mount without hindrance. Any material or production-related residual stresses in the bearing ring, which can lead to deviations from the specified nominal shape when the ring shape is open, remain Thus, the assembly without effect and ultimately come after the breaking out of the predetermined breaking points delimited peripheral portion in the leadership quality of the bearing ring for the output link impairing dimensions not to wear, since the bearing support for the now open bearing ring forms a form-bearing support, if necessary is also sufficient for the positive anchoring of the bearing ring in the bearing receptacle.
- a rotationally fixed fixing of the bearing ring optionally additionally, preferably also provided on the front side grooves, which ensure the required fixation, where appropriate, axial positioning of the bearing ring with appropriate, provided by the bearing receiver counterparts.
- the assembly method according to the invention is in particular for
- Storage rings expedient which, preferably as plain bearing rings, consist of brittle, especially brittle-breaking materials.
- brittle especially brittle-breaking materials.
- sintered materials or other susceptible to brittle fracture materials which may also result in the production of residual stresses, which may have deviations from the desired shape in the broken state of the bearing ring.
- the invention further relates to a bearing ring as such, which has a separation points, in particular predetermined breaking points, demarcated and/morezutumbleden, in particular planetieriden ring section, which is particularly useful in hand tool of the aforementioned type, as well as in connection with an aforementioned assembly method, and which despite the intended use as an open bearing ring is finished and thus also made of materials in which, as in sintered materials, build up in the production of residual stresses that may have the same in recessed, so open bearing ring deformations.
- the predetermined breaking points can in the context of the invention by notches provided in the inner and / or outer circumference of the bearing ring notches, - A -
- optionally overlapping notches may be formed so that only relatively thin webs remain.
- a thickening in the overlapping area to the respective notch on the outer circumference of the bearing ring, in order to achieve a material cross section which is substantially constant throughout the production, irrespective of the notch.
- the thickening can be removed in a simple manner after the production, that is, for example, following the pressing of sintered materials, by grinding, over-turning or the like.
- FIG. 2 is a perspective view of an intermediate flange of the hammer drill, which has a bearing on its tool-side end bearing with a bearing receptacle for a bearing ring, which leads to be connected to the tool driven member,
- Fig. 5 is an enlarged view of the detail V in
- Fig. 6 is an enlarged partial view of a bearing ring in plan view, in which an inside notched portion of the bearing ring is externally gedged, and
- Fig. 7 is another perspective view of a bearing ring.
- a hammer drill 1 is schematically shown in Fig. 1, which has at its opposite the handle 2 tool-side working end 3 an output member 4 associated tool holder.
- the output member 4 is formed by a hammer tube 5, which receives an oscillating, in particular reciprocally driven oscillating hammer piston 6 at the back of the workpiece holder and the at his from the
- the intermediate flange 9 has a base plate 10 which is connected to the output-side end plate 11 of the electric motor 12 provided as drive, whose output shaft 13 drives an intermediate shaft 14.
- the intermediate shaft 14 carries a wobble bearing 16 via a wobble bearing 15, which engages the neck 8 of the intermediate flange 9 by passing the hammer piston 6. According to the wobbling motion, so the stroke-pivoting movement of the wobble finger 16 of the wobble finger 16 engages, annular neck 8 as shown in FIG.
- the recess of the annular sector 17 corresponding circumferential portion conventionally be formed during manufacture, for example in the die-casting process. But it is also possible to separate out of the initially closed neck 8 of the intermediate flange 9 subsequently a the Schwarzestden ring sector 17 corresponding peripheral portion, in particular lymphzus or break out.
- bearing retainer 18 of the bearing ring 19 is axially inserted, as a closed bearing ring whose overlapping to the recessed peripheral portion of the bearing seat 18 peripheral portion 22 via separation points, in particular predetermined breaking points 20, is delimited as they relate are illustrated on a closed bearing ring in Fig. 3 to 7.
- the annular sector 17 of the bearing ring 19 to be omitted is formed by a peripheral portion 22 which is delimited by wedge-shaped notches 21 and which is to be broken out.
- the bearing ring 19 which may have like the bearing seat circular or oval shape, is first in the bearing receptacle 18 in a closed ring shape and in the arrangement of the Jardin sermonden
- Peripheral portion 22 is used in overlap with the recessed annular sector 17 of the bearing ring 18, preferably matching, so that for the bearing ring 19 is given a shape-retaining support that is absent only in the Surveysparenden ring sector 17, and the peripheral portion 22 of the bearing ring 19 along the target - Breakages 20 broken and can be solved from the ring composite without the bearing ring 19 is thereby impaired in its shape retention.
- FIG. 3 to 5 illustrate the formation of the intended as separation points predetermined breaking points 20 as acute-angled notches 21, as shown in particular the enlarged view of FIG. 5, wherein in the notch base relative to the closed, corresponding in the peripheral shape of the bearing seat 19 bearing ring 19th only a relatively small wall thickness remains.
- the notch angle is preferably about 60 to 80 ° as shown in FIG.
- Lagerringes 19 may be the case, according to the invention, as shown in Fig. 6, the recess of the respective particular wedge-shaped notch 21 opposite peripheral region are provided with a thickening 23, so that in the notches 21 first by the thickening 23 one of the other wall thickness of the bearing ring 19 corresponding wall cross-section is given.
- the required for insertion into the bearing receptacle 18 removal of the thickening 23 can be removed below, for example by grinding, turning over or the like, so that in this production given embodiment of the still closed bearing ring 19 after removal of the thickening 23 of the use of the bearing ring 19 in the bearing seat 18th as described above can be done.
- Such a rotation can also be achieved in other ways, for example, as shown in FIG. 7 by frontal recesses 24 on the bearing ring 19, to which corresponding counterparts are provided on the bearing seat, which are not shown.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008801183430A CN101878095B (zh) | 2007-11-29 | 2008-09-29 | 手持式工具机 |
RU2010126060/02A RU2497655C2 (ru) | 2007-11-29 | 2008-09-29 | Ручная машина |
EP08854209.7A EP2225071B1 (de) | 2007-11-29 | 2008-09-29 | Handwerkzeugmaschine |
US12/745,422 US8561714B2 (en) | 2007-11-29 | 2008-09-29 | Hand-held power tool |
US14/060,265 US20140041889A1 (en) | 2007-11-29 | 2013-10-22 | Hand-Held Power Tool |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007057453A DE102007057453A1 (de) | 2007-11-29 | 2007-11-29 | Handwerkzeugmaschine |
DE102007057453.5 | 2007-11-29 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/745,422 A-371-Of-International US8561714B2 (en) | 2007-11-29 | 2008-09-29 | Hand-held power tool |
US14/060,265 Division US20140041889A1 (en) | 2007-11-29 | 2013-10-22 | Hand-Held Power Tool |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009068344A1 true WO2009068344A1 (de) | 2009-06-04 |
Family
ID=40251875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/063024 WO2009068344A1 (de) | 2007-11-29 | 2008-09-29 | Handwerkzeugmaschine |
Country Status (6)
Country | Link |
---|---|
US (2) | US8561714B2 (de) |
EP (1) | EP2225071B1 (de) |
CN (1) | CN101878095B (de) |
DE (1) | DE102007057453A1 (de) |
RU (1) | RU2497655C2 (de) |
WO (1) | WO2009068344A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007014758A1 (de) * | 2007-03-28 | 2008-10-02 | Robert Bosch Gmbh | Handwerkzeugmaschine |
US8636081B2 (en) | 2011-12-15 | 2014-01-28 | Milwaukee Electric Tool Corporation | Rotary hammer |
EP2556922B1 (de) * | 2011-08-09 | 2014-03-19 | C. & E. Fein GmbH | Kraftgetriebenes Handwerkzeug |
DE102012104538A1 (de) * | 2012-05-25 | 2013-11-28 | Gustav Klauke Gmbh | Werkzeug |
US11105390B2 (en) | 2017-08-28 | 2021-08-31 | Qa1 Precision Products, Inc. | Shock absorber with dry valving |
USD866408S1 (en) | 2017-08-28 | 2019-11-12 | Qa1 Precision Products, Inc. | Shock absorber |
USD869259S1 (en) | 2017-08-28 | 2019-12-10 | Qa1 Precision Products, Inc. | Valve component |
US11085502B2 (en) | 2017-08-28 | 2021-08-10 | Qa1 Precision Products, Inc. | Bleed needle for a hydraulic system |
USD872837S1 (en) | 2017-08-28 | 2020-01-14 | Qa1 Precision Products, Inc. | Bleed needle |
US11945087B2 (en) | 2019-03-29 | 2024-04-02 | Tien-I Industrial Co., Ltd. | Impact tool head |
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-
2007
- 2007-11-29 DE DE102007057453A patent/DE102007057453A1/de not_active Withdrawn
-
2008
- 2008-09-29 WO PCT/EP2008/063024 patent/WO2009068344A1/de active Application Filing
- 2008-09-29 EP EP08854209.7A patent/EP2225071B1/de active Active
- 2008-09-29 CN CN2008801183430A patent/CN101878095B/zh active Active
- 2008-09-29 RU RU2010126060/02A patent/RU2497655C2/ru not_active IP Right Cessation
- 2008-09-29 US US12/745,422 patent/US8561714B2/en active Active
-
2013
- 2013-10-22 US US14/060,265 patent/US20140041889A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19801986A1 (de) * | 1997-04-18 | 1998-10-22 | Hitachi Koki Kk | Vorrichtung zum Schalten von Betriebsmodi für eine Hammerbohrmaschine |
DE102005026614A1 (de) * | 2005-06-09 | 2006-12-14 | Zf Friedrichshafen Ag | Einrichtung zur axialen Sicherung der Lager und der Wellen des Variators eines stufenlosen Automatgetriebes und zur Abstützung der bei der Variatorverstellung auftretenden axialen Kräfte |
Also Published As
Publication number | Publication date |
---|---|
US8561714B2 (en) | 2013-10-22 |
RU2010126060A (ru) | 2012-01-10 |
DE102007057453A1 (de) | 2009-06-04 |
CN101878095B (zh) | 2012-11-28 |
US20140041889A1 (en) | 2014-02-13 |
CN101878095A (zh) | 2010-11-03 |
US20100300715A1 (en) | 2010-12-02 |
EP2225071A1 (de) | 2010-09-08 |
EP2225071B1 (de) | 2014-11-26 |
RU2497655C2 (ru) | 2013-11-10 |
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