CN102596512B - The method of toolroom machine and the heat radiation for toolroom machine - Google Patents
The method of toolroom machine and the heat radiation for toolroom machine Download PDFInfo
- Publication number
- CN102596512B CN102596512B CN201080047276.5A CN201080047276A CN102596512B CN 102596512 B CN102596512 B CN 102596512B CN 201080047276 A CN201080047276 A CN 201080047276A CN 102596512 B CN102596512 B CN 102596512B
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- China
- Prior art keywords
- housing
- chiso
- mallet
- hammer drill
- radiator
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- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title description 9
- 230000005855 radiation Effects 0.000 title description 5
- 230000007246 mechanism Effects 0.000 claims description 35
- 238000007789 sealing Methods 0.000 claims description 17
- 230000033001 locomotion Effects 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009545 invasion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000006071 cream Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B25F5/008—Cooling means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling And Boring (AREA)
Abstract
The present invention relates to a kind of toolroom machine, it comprises a housing (12) and a cutter holder (14) for receiving plug-in type cutter (16) be arranged on movingly on housing (12).This toolroom machine also comprises one and is received in and has driver element (18 in housing (12), 48,50) and the drive unit (22) of gear unit (20), this drive unit is for driving plug-in type cutter (16), and this drive unit is in operation generation used heat.The present invention advises, described gear unit (16) comprises at least one radiator (88).
Description
Technical field
The present invention relates to a kind of toolroom machine, especially hand held power machine.
Background technology
With housing, be arranged in movingly housing is known for the cutter holder that receives plug-in type cutter and the toolroom machine of the drive unit for driving cutter that is received in housing.Used heat can be produced in the operation of drive unit with driver element and gear unit.Especially in known hammer drill and/or jump bit, operationally can produce a large amount of loss heat and/or used heat.Produce extra high heat at this being provided with in the front area of many thermals source of hand held power machine and producing high temperature thus.Thermal source be such as the air cushion of beater mechanism from hammer drill and/or jump bit the heat of compression, from beater mechanism element between the impact loss of appearance of impact process, possible friction loss that the relative motion between the inner element by beater mechanism of beater mechanism produces and/or hammer drill and/or jump bit the frictional dissipation of other moving component.In order to limit the thermal force being positioned at inner component, loss heat outwards must derive from enclosure interior in enough degree.Realize mainly through heat transfer in this heat transfer.In the example of known hammer drill and/or jump bit, the major part of the heat produced in beater mechanism must be derived by two supporting portions belonging to the hammer pipe of beater mechanism.But depend on form of implementation, supporting portion only has little binding face or contact surface, to such an extent as to heat-transfer area and thus conductible heat are considerably less.Thus in the form of implementation of known hammer drill and/or jump bit, the thermal force being positioned at the beater mechanism component of housing is high especially.
The loss heat arriving the outer surface of beater mechanism is discharged in surrounding environment by convection current on significant extent.Air mass flow needed for convection current is produced by a blower fan be connected with driver element usually at this.In order to air mass flow is led hammer drill and/or jump bit front area and protect user to avoid the Contact Temperature be harmful to, a beater mechanism housing surrounding beater mechanism is surrounded by the plastic casing that adds usually.But because the hottest part of beater mechanism housing is often positioned at the end of heat radiation chain, externally also only there is insufficient heat transmission at this position.
In addition such as known by DE 10 2,004 058 696 A1, by so-called Venturi nozzle effect, air is sent in front area effectively.The utilization of this effect needs the hammer drill of relative complex to construct at this.
Summary of the invention
According to the present invention, propose a kind of hammer drill and/or chiso-mallet, it comprises a housing, one is arranged on cutter holder and a drive unit with driver element and gear unit received in the housing for receiving plug-in type cutter on housing movingly, this drive unit is for driving plug-in type cutter, this drive unit is in operation and produces used heat and described gear unit and comprise an at least rotatable movement, be configured to the axle hammering pipe into shape, wherein: described gear unit comprises the radiator that at least one is configured to back-up ring, wherein, the hammer pipe of described gear unit is surrounded by described radiator at least in part, and described radiator is at least furnished with a sealing position to dust sealing, stop described gear unit by described sealing steric hindrance directly to contact with cooling-air stream.
Have the following advantages by the toolroom machine of technique scheme of the present invention, especially hand held power machine tool: gear unit comprises at least one radiator.Advantageously reach following result by this heat radiation physical efficiency, the used heat namely occurred in gear unit can be discharged by peripherad air mass flow especially effectively.
Advantageous extension to the feature provided in technique scheme and improvement is obtained by the measure enumerated in the following description.
Effective and the form of implementation of simultaneously saving structure space can realize in the following manner: gear unit comprises the axle of an at least rotatable movement, and it is surrounded by radiator at least in part.At this particularly advantageously, the axle of rotatable movement is bearing in radiator.
In the effective especially form of implementation of one, the axle of at least rotatable movement described in radiator surrounds substantially coaxially.
If radiator is connected with the axle of described at least rotatable movement at least substantially rotationally, especially without relative rotation, so heat trnasfer can more effectively carry out.In the particularly preferred form of implementation of one, radiator is constructed to back-up ring.
Discharging the efficiency in used heat to improve the actuated element being constructed to radiator, the actuated element being constructed to radiator has at least one and establishes gelled subregion.
In the extend type that another is favourable, radiator has the join domain that at least one receives heat.The join domain of reception heat is especially understood to a region on radiator at this, radiator represents the object especially directly being contacted discharge heat by contact on the area, thus the heat trnasfer resistance that formation is little as far as possible.Be in direct contact with this can such as be set up by positive and/or force closure and/or the sealed connection of material.In the simple especially form of implementation of one, contact was constructed to win and coordinated.In conversion or addedly, in another kind of form of implementation, in join domain, advantageously conduction material, such as heat-conducting cream is used.
In a kind of preferred implementing form of toolroom machine, at least some parts of gear unit are arranged in gear mechanism housing, and this gear mechanism housing receives in the housing.Preferably, gear mechanism housing is made up of metal material, especially steel at this.
In the particularly advantageous form of implementation of one, gear mechanism housing has at least one surface texture ventilative on direction, face at least from the teeth outwards.Direction, face is particularly understood as the bearing of trend on surface at this.Ventilative surface texture is particularly understood as a structure at this, this structure resistance that is little as far as possible to the gas acting in opposition of meeting stream towards structure, that preferably almost disappear.The gas of meeting stream can be preferably air at this.In the simple especially form of implementation of one, surface texture can be constructed at least one overflow launder at this.
In order to effectively discharge used heat especially, arranging at least one air and entering opening in housing, cooling-air stream can enter opening by air and flow in housing to discharge used heat at least partially.In addition, in this transitional region between cutter holder and housing, be provided with at least one air outlet opening, at least one fraction of cooling-air stream can be discharged by air outlet opening.
In order to avoid the accidental injury caused by the dust of invasion, the actuated element being configured to radiator is at least furnished with a sealing position to dust sealing.This at least to the full extent, preferably almost entirely stops gear unit directly to contact with cooling-air stream to the sealing position of dust sealing.
In the preferred version of one, the axle of described at least rotatable movement be one at least rotatable movement working-spindle, especially hammer pipe into shape.In the particularly preferred form of implementation of one, be hand held power machine, especially hammer drill and/or chiso-mallet by toolroom machine of the present invention.
In yet another aspect, the present invention relates to a kind of method of the heat radiation for toolroom machine, especially hand held power machine, this toolroom machine have one received in the housing, the drive unit with driver element and gear unit.In the operation of drive unit, produce used heat at this, wherein, cooling-air flows through at least one air inlet opening be arranged on housing and flows in housing to discharge preheating at least partially.Radiator on the axle flowing through the rotatable movement being arranged on gear unit at least partially of suggestion cooling-air stream.
Accompanying drawing explanation
Embodiments of the invention are shown in the drawings and set forth in detail in the following description.Accompanying drawing illustrates:
The diagrammatic side view of Fig. 1 hammer drill and/or jump bit,
The partial sectional view with the front area by bearings of the present invention of the hammer drill of Fig. 2 Fig. 1.
Detailed description of the invention
Fig. 1 illustrates the example of schematic diagram as toolroom machine of a hammer drill and/or chiso-mallet 10, it comprises a housing 12, and arranges the drive unit 22 with driver element 18 and gear unit 20 be received in for the cutter holder 14 and receiving plug-in type cutter 16 in housing 12 on housing 12 movingly, and this drive unit is for driving plug-in type cutter 16.Cutter holder 14 preferably can be rotatably set on the side 24 of housing 12 at this.According in the example of Fig. 1, the side contrary with the side 24 of housing 12 of housing 12 is provided with a handle assembly 26 in addition.This handle assembly 26 comprises one for starting the utensil main switch 28 of hammer drill and/or chiso-mallet 10 at present example.On the housing 12 of this external hammer drill and/or chiso-mallet 10, setting, especially adjustable ground arrange an additional handle assembly 30.In addition the housing 12 of hammer drill and/or chiso-mallet 10 have at least one, preferred two or more ventilation orifice 32.Depend on air-flow direction 34,36, ventilation orifice 32 enters opening 38 as air or air outlet opening 40 acts on.But an air is set at least on housing 12 and enters opening 38.
An additional air outlet opening 46 is set in the transitional region 42 between housing 12 and cutter holder 14, especially between housing 12 and the outer race 44 of cutter holder 14.
In present example, driver element 18 comprises a motor 48, especially motor 50 and one unshowned motor drive shaft here.Motor 48,50 to be acted on gear unit 20 by motor drive shaft and being connected.
The gear unit 20 of hammer drill described here and/or chiso-mallet 10 has a rotary actuation transmission device and/or a beater mechanism with impact drive transmission with known form.In known hammer drill and/or chiso-mallet 10, beater mechanism is often configured to a so-called air cushion impactor structure or air spring impact mechanism.As illustrated in beginning, air cushion impactor structure produces the used heat of the drive unit 22 of hammer drill and/or chiso-mallet 10 in several ways and contributes.
Fig. 2 illustrates the front area of hammer drill and/or chiso-mallet 10 with broken section.
Cutter holder 14 is at this except outer race 44 also has the locking device 56 that a tool fitting 52 and comprises at least one locking element 54, and this tool fitting is preferably made up of metal material, especially steel.The insertion end 58 of plug-in type cutter 16 to be received in tool fitting 52 and to be locked by locking device 56.
The gear unit 20 of hammer drill and/or chiso-mallet 10 has a working-spindle 60, preferably hammer pipe 61 as the example of the axle 59 of rotary motion.Tool fitting 52 is such as inserted in the end 62 opened wide of working-spindle 60,61 at this and also preferably relatively rotates with working-spindle 60,61 nothing and can not axially movably be connected.According in the example of Fig. 2, tool fitting 52 is connected with working-spindle 60,61 by being coupled in tool fitting 52 and through the locking body 64 of working-spindle 60,61.
Working-spindle 60,61 to be received in gear mechanism housing 68 by a sliding bearing 66 at this and rotatably to be supported relative to this gear mechanism housing.Gear mechanism housing 68 is outwards also besieged at least in part by housing 12, especially hammer shroud 70 gauge at this.Gear mechanism housing 68 at this especially by metal material, preferably made of steel.Hammer shroud 70 and housing 12 are equally preferred to be made of plastics.In addition, between working-spindle 60,61 and gear mechanism housing 68, be also provided with a felt collar 72 and a radial shaft seals circle 74, by them, gear mechanism housing 68 sealed relative to the dust of invasion.
In addition, arrange one in the transitional region between tool fitting 52 and working-spindle 60,61 and impact bolt 76.Impact bolt 76, at this, there is one or more earrings 78, make the inner space 80 of working-spindle 60,61 relative to the dust sealing of invasion by them.
In general, the structure of the hammer drill illustrated in fig 1 and 2 and/or chiso-mallet 10 corresponds to the completely known serial scheme for hammer drill and/or chiso-mallet.The used heat that major part is inner at percussion mechanism, especially produce in working-spindle and cutter holder must discharge gear mechanism housing 68 by heat transfer by sliding bearing 66 that is long and narrow, that have gap.In fact working-spindle 60,61 does not discharge used heat by effective convection heat transfer' heat-transfer by convection because working-spindle 60,61 in fact with peripheral member thermal isolation.Identical content is also applicable to the cutter holder 14 of thermal coupling certainly with similarity relation.
Pressing in hammer drill of the invention process and/or chiso-mallet 10 according to Fig. 2, gear mechanism housing 68 has at least one overflow launder 82.Overflow launder 82 extends along direction, a face 71 along the surface 69 of gear mechanism housing 68 at this.At this, direction, face is especially understood to such direction, and this direction is parallel to surface 69 and extends and especially in the local coordinate system on surface 69, follow the tracks of this surface trend on a direction in space.Overflow launder 82 is arranged in gear mechanism housing 68 relative to the supporting zone of hammer shroud 70 housing 12 in other words boring hammer 10.That air mass flow 84 is flowed towards the direction of cutter holder 14 in the task of this overflow launder 82.Except the overflow launder 82 shown in this, professional is other ventilative surface texture 83 ' known in addition, and it can be used in causing the heat loss through convection to beater mechanism by the present invention.Such as can adopt surface voids and/or network by invention.Also can alternatively or additionally specify, a surface texture 83 ' of breathing freely accordingly is arranged on the inner face of housing 12 in supporting zone.
At radially outer, a radiator 88 is arranged on working-spindle 60,61 in join domain 86 between working-spindle 60,61 and tool fitting 52, is preferably connected with working-spindle 60,61 without relative rotation.Radiator 88 is particularly understood as one at this and has large heat transfer-and/or heat-exchange surface and/or the element to stream interface and/or little heat exchange resistance.Radiator 88 is according to being implemented as a component mainly in form of sleeve in the form of implementation of Fig. 2.Radiator 88 extends to sealed and/or force closure in this preferable shape on join domain 86.Therefore radiator 88 is connected with working-spindle 60,61 especially without relative rotation in current example.Except radiator 88 and the positive of working-spindle 60,61 and/or the connection of force closure, known alternatively or additionally by other interconnection technique that invention uses for technical staff.So the sealed connection of the material interconnection technique as an alternative or supplement such as by soldering or melting welding can be adopted.Also the heat conducting material from working-spindle 60,61 to radiator 88, the especially heat-conducting cream that are conducive to the heat transfer from can be added in join domain 86.
In the preferred form of implementation of one, as shown in FIG. 2, radiator 88 also has a sealing labyrinth formed together with gear mechanism housing 68 90.Sealing labyrinth 90 be used herein to improve drive unit housing 68 relative to invade, such as from air mass flow 84 containing dust air dust sealing.
Radiator 88 preferably has one or particularly preferably multiple fin 92 extend in air mass flow 84.Air mass flow 84 flows through overflow launder 82 and fin 92.Then air mass flow 84 is discharged in surrounding environment by the additional air outlet opening 46 be arranged in transitional region 42.The used heat generated in the front area of brill hammer 10 especially can be discharged in air mass flow 84 effectively by the fin 92 of radiator 88.
In addition, radiator 88 can have supplementary features, can represent additional function by supplementary features.Such as can arrange a sealing labyrinth 94 thus, the inner space 96 of cutter holder 14 is by the protected dust from invading in sealing labyrinth.In addition radiator 88 also can be used as the carrier of potted component 98.
According in the form of implementation of Fig. 2, radiator 88 arranges coaxially around working-spindle 60,61 and is constructed to back-up ring 100 especially.This has advantage, is namely strengthened sealing function and the radiating effect of radiator 88,100 by the rotary motion of working-spindle 60,61.
According to the concrete form of implementation of toolroom machine, professional, and not to change the important advantage of invention and effect at this according to requiring adaptive radiator accordingly based on the Characteristic and function of radiator 88 described here.
Claims (10)
1. hammer drill and/or chiso-mallet (10), it comprises a housing (12), one is arranged on being received in for the cutter holder (14) and receiving plug-in type cutter (16) on housing (12) movingly and has driver element (18 in housing (12), 48, 50) and the drive unit (22) of gear unit (20), this drive unit is for driving plug-in type cutter (16), this drive unit is in operation and produces used heat and described gear unit (20) and comprise an at least rotatable movement, be configured to the axle (59) hammering pipe (61) into shape, it is characterized in that, described gear unit (20) comprises at least one radiator being configured to back-up ring (100) (88), wherein, the hammer pipe (61) of described gear unit (20) is surrounded by described radiator at least in part, and described radiator (88) is at least furnished with a sealing position (90 to dust sealing, 94), stop described gear unit (20) by described sealing steric hindrance directly to contact with cooling-air stream.
2. hammer drill according to claim 1 and/or chiso-mallet (10), is characterized in that, the axle (59) of at least rotatable movement described in described radiator (88) surrounds coaxially.
3. according to hammer drill and/or the chiso-mallet (10) of claim 1 or 2, it is characterized in that, on the axle (59) of at least rotatable movement described in described radiator (88) is arranged on.
4., according to hammer drill and/or the chiso-mallet (10) of claim 1 or 2, it is characterized in that, described radiator (88) has the subregion that at least one is provided with fin (92).
5. according to hammer drill and/or the chiso-mallet (10) of claim 1 or 2, it is characterized in that, described radiator (88) has the join domain (86) that at least one receives heat.
6. according to hammer drill and/or the chiso-mallet (10) of claim 1 or 2, it is characterized in that, the at least some parts of described gear unit (20) are arranged in a gear mechanism housing (68), and this gear mechanism housing is received in described housing (12).
7. hammer drill according to claim 6 and/or chiso-mallet (10), it is characterized in that, described gear mechanism housing (68) at least has at least one at direction, face (71) upper ventilative surface texture (83) on surface (69).
8. according to hammer drill and/or the chiso-mallet (10) of claim 1 or 2, it is characterized in that, in described housing (12), be provided with at least one air enter opening (38), cooling-air stream can enter opening by described air and flow into take away described used heat at least partially in described housing (12), and is provided with at least one the air outlet opening (46) at least a fraction of for discharging cooling-air stream in transitional region (42) between described cutter holder (14) and described housing (12).
9. hammer drill according to claim 3 and/or chiso-mallet (10), is characterized in that, described radiator (88) is connected with the axle (59) of described at least rotatable movement without relative rotation.
10. hammer drill according to claim 6 and/or chiso-mallet (10), it is characterized in that, described gear mechanism housing (68) at least has at least one overflow launder (82) on direction, face (71) on surface (69).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910045799 DE102009045799A1 (en) | 2009-10-19 | 2009-10-19 | Machine tool and method for cooling a machine tool |
| DE102009045799.2 | 2009-10-19 | ||
| PCT/EP2010/064882 WO2011047959A1 (en) | 2009-10-19 | 2010-10-06 | Machine tool and method for cooling a machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102596512A CN102596512A (en) | 2012-07-18 |
| CN102596512B true CN102596512B (en) | 2015-08-19 |
Family
ID=43371529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080047276.5A Expired - Fee Related CN102596512B (en) | 2009-10-19 | 2010-10-06 | The method of toolroom machine and the heat radiation for toolroom machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2490862A1 (en) |
| CN (1) | CN102596512B (en) |
| DE (1) | DE102009045799A1 (en) |
| WO (1) | WO2011047959A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013204985A1 (en) * | 2013-03-21 | 2014-10-09 | Robert Bosch Gmbh | Hand tool |
| JP6258093B2 (en) * | 2014-03-24 | 2018-01-10 | 株式会社マキタ | Impact tool |
| JP6504183B2 (en) | 2015-01-30 | 2019-04-24 | 工機ホールディングス株式会社 | Work machine |
| DE102017211007A1 (en) * | 2017-06-29 | 2019-01-03 | Robert Bosch Gmbh | Hand tool |
| EP3763467A1 (en) * | 2019-07-11 | 2021-01-13 | Hilti Aktiengesellschaft | Dust protection cap with vibration decoupling |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19626254A1 (en) * | 1996-06-29 | 1998-01-08 | Bosch Gmbh Robert | Electric hand machine tool |
| DE19913833A1 (en) * | 1998-03-27 | 1999-10-07 | Bender Gmbh & Co Kg Dr | Rotary drive system e.g. for boring, drilling and cutting machine sets, lathes, fans etc |
| EP1302281B1 (en) * | 2001-10-15 | 2007-05-02 | HILTI Aktiengesellschaft | Cooling air duct in an electric percussive tool |
| DE102004036585A1 (en) * | 2004-07-28 | 2006-03-23 | Robert Bosch Gmbh | Intermediate flange for a machine tool |
| DE102004055268A1 (en) * | 2004-11-17 | 2006-05-18 | Robert Bosch Gmbh | Hand tool |
| DE102004058696A1 (en) | 2004-12-06 | 2006-06-08 | Hilti Ag | Electric power tool |
| EP1674213B1 (en) * | 2004-12-23 | 2008-10-01 | BLACK & DECKER INC. | Power tool cooling |
| GB0428210D0 (en) * | 2004-12-23 | 2005-01-26 | Black & Decker Inc | Mode change mechanism |
| DE102006031513A1 (en) * | 2006-07-07 | 2008-01-17 | Robert Bosch Gmbh | Hand tool, in particular hand saw |
| DE102007012395A1 (en) * | 2007-03-15 | 2008-09-18 | Festool Gmbh | Hand machine tool with a heat sink |
-
2009
- 2009-10-19 DE DE200910045799 patent/DE102009045799A1/en not_active Withdrawn
-
2010
- 2010-10-06 EP EP10767978A patent/EP2490862A1/en not_active Withdrawn
- 2010-10-06 CN CN201080047276.5A patent/CN102596512B/en not_active Expired - Fee Related
- 2010-10-06 WO PCT/EP2010/064882 patent/WO2011047959A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| EP2490862A1 (en) | 2012-08-29 |
| WO2011047959A1 (en) | 2011-04-28 |
| DE102009045799A1 (en) | 2011-05-12 |
| CN102596512A (en) | 2012-07-18 |
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Granted publication date: 20150819 Termination date: 20171006 |