CN104249336B - Hand held power machine - Google Patents
Hand held power machine Download PDFInfo
- Publication number
- CN104249336B CN104249336B CN201410281734.1A CN201410281734A CN104249336B CN 104249336 B CN104249336 B CN 104249336B CN 201410281734 A CN201410281734 A CN 201410281734A CN 104249336 B CN104249336 B CN 104249336B
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- China
- Prior art keywords
- unit
- exhaust
- beater mechanism
- hand tool
- exhaust unit
- 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.)
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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 238000009527 percussion Methods 0.000 claims abstract description 32
- 230000000903 blocking effect Effects 0.000 claims description 25
- 239000000314 lubricant Substances 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 description 23
- 239000011796 hollow space material Substances 0.000 description 15
- 210000003027 ear inner Anatomy 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000470 constituent 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
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- B25D17/20—Devices for cleaning or cooling tool or work
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
- B25D2217/0057—Details related to cleaning or cooling the tool or workpiece
- B25D2217/0061—Details related to cleaning or cooling the tool or workpiece related to cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The present invention relates to a kind of hand held power machines, the hand held power machine has at least one percussion unit (12), at least one driving unit (14), beater mechanism housing unit (16) and exhaust apparatus (18), the driving unit is arranged at least partly for driving the percussion unit (12), the beater mechanism housing unit is at least partially around the percussion unit (12), and the exhaust apparatus setting at least one beater mechanism housing unit (16) for being vented.It is proposed that the exhaust apparatus (18) includes first exhaust unit (20) and at least one other exhaust unit (22).
Description
Technical field
The present invention relates to a kind of hand held power machines.
Background technology
It has been proposed that a kind of hand held power machine, single at least one percussion unit, at least one driving
Member, beater mechanism housing unit and exhaust apparatus, the driving unit are arranged at least partly for driving the beater mechanism
Unit, the beater mechanism housing unit are used at least partially around the percussion unit, the exhaust apparatus setting
It is vented at least one beater mechanism housing unit.
Invention content
The present invention relates to a kind of hand held power machine, the hand held power machine have at least one percussion unit,
At least one driving unit, beater mechanism housing unit and exhaust apparatus, at least one driving unit are set at least partly
It sets for driving the percussion unit, the beater mechanism housing unit is at least partially around the beater mechanism list
Member, the exhaust apparatus setting at least one beater mechanism housing unit for being vented.
It is proposed that the exhaust apparatus includes first exhaust unit and at least one other exhaust unit." impact
Mechanism unit " especially should be understood as such a unit in this context, and the unit is arranged at least partly to be used for
It is produced especially by by the convert rotational motion linear movement of the driving unit of the hand held power machine in operating status
The raw momentum (or pulse) being especially applied on the plug-in type tool of the hand held power machine.The percussion unit is special
It includes at least one piston element not to be, at least one piston element preferably at least partly with driving unit mechanically
Coupling, the hand held power machine preferably include the driving unit.The piston element is preferably provided for, and is being run
Implement linear movement in state.It includes at least one director element, the director element that the percussion unit, which is especially,
It is preferably made of hammer pipe and is preferably provided for linearly being oriented at least described piston element.It is particularly preferred at one
In embodiment, the percussion unit includes pneumatic beater mechanism.
" at least partially around " is in this context especially it will be appreciated that the beater mechanism housing unit is at least
In one plane, in the plane that is preferably arranged with inclining towards each other at least two more than 180 degree, preferably more than 270 degree
And the percussion unit is surrounded in particularly preferably 360 degree of angular region." exhaust " in this context should be special
It is exchange of air and/or balance pressure between the volume of air for being understood as at least substantially constructing apart from each other at two." extremely
It is few substantially separate " in this context especially it will be appreciated that at least one volume of air be configured to it is special by wall
It is at least almost hermetically at least almost to surround.The exhaust can between at least two volume of air along
One flow direction especially has air-flow along two opposite flow directions in different times o'clock.
" redundancy at least partly " is in this context especially it will be appreciated that at least one other exhaust unit
With the first exhaust unit have it is comparable at least partly, particularly at least partly it is identical, functionally and/or knot
On structure and/or technical feature and/or characteristic.Especially only by the first exhaust unit or described at least one
A other exhaust unit can be achieved at least almost noiseless of exhaust apparatus and meet defined normal operation.By described
First exhaust unit or at least one other, redundancy multiple presence of exhaust unit, can advantageously improve described
The functional safety and reliability of exhaust apparatus.
Configuration through the invention, can realize advantageously reliable exhaust and preferably implement it is good prevent dirt and
Dust enters and prevents lubricant from escaping.It is reliably prevented from dust especially by the multi-stage configuration of the exhaust apparatus
Entrance and lubricant effusion and enduringly ensure the function of the exhaust apparatus.Therefore the row can be enduringly realized
Pressure balance inside and around device of air between environment.Furthermore it is possible to realize lubricant, dust and exhaust at least partly
Air-flow detaches and can prevent the effusion of lubricant and/or the entrance of dust.
It is further recommended that the first exhaust unit is at least partly constructed to labyrinth type exhaust unit." labyrinth type exhaust is single
Member " should especially be understood as such a unit in this context, and the unit setting is for exhaust and the unit
Guide the air, the distance that at least there is the direction change more than 90 ° along stretch journey.It is advantageous thereby, it is possible to realize
Ground is reliably vented and is preferably reliably prevented dust entrance and/or lubricant effusion.
It is further recommended that at least one other exhaust unit is at least partly constructed to labyrinth type exhaust unit." fan
Palace formula exhaust unit " should especially be understood as such a unit in this context, and the unit setting is for being vented simultaneously
And the unit guides the air, the distance at least to have the direction change more than 90 ° along stretch journey.As a result, can
Enough realize advantageously reliably is vented and is preferably reliably prevented dust entrance and/or lubricant effusion.
It is further recommended that the first exhaust unit and at least one other exhaust unit are set with being separated from each other
It sets." at interval be arranged " is in this context especially it will be appreciated that the first exhaust unit and described at least one another
Outer exhaust unit along at least one direction in space, preferably along at least two direction in spaces, with small spacing, it is described
Spacing is especially at least 1mm, preferably at least 5mm, preferably at least 10mm and particularly preferably at least 50mm.
Thereby, it is possible to realize advantageously to separate the exhaust airstream and dust and/or lubricant.
It is further recommended that the exhaust apparatus includes at least one chamber element, the chamber element is arranged described first
Between exhaust unit and at least one other exhaust unit." chamber element " should especially understand in this context
At such a element, the element is at least partially around at least one hollow space." at least partially around " is on this
Hereinafter especially it will be appreciated that the chamber element inclines towards each other ground at least one plane, preferably at least two
In the plane of setting, more than 180 degree, preferably more than 270 and particularly preferably 360 degree of angular region on described in encirclement extremely
A few hollow space.Thereby, it is possible to realize advantageously reliable exhaust and be preferably prevented from the entrance of dirt and dust simultaneously
And prevent the effusion of lubricant.
It is further recommended that the exhaust apparatus includes at least one filter element, at least one filter element at least portion
Ground setting is divided to be used for filtering exhaust air-flow." filtering " in this context especially it will be appreciated that especially by solid constituent from
Liquid and/or gaseous substance and/or mixture of substances, particularly pass through the mistake from the exhaust airstream at least partly
Filtering element is stopped or is isolated at least partly, particularly mechanically.Especially by the multistage structure of the exhaust apparatus
It makes, at least substantially reaches the filter element without dust, thus, it is possible to prevent the blocking of the filter element and therefore
It can prevent from damaging the function of the exhaust apparatus.
It is further recommended that at least one filter element setting the first exhaust unit and it is described it is at least one in addition
Exhaust unit between.Thus, it is possible to realize the preferred efficient filtering of the exhaust airstream.
It is further recommended that the exhaust apparatus includes at least one blocking member, at least one blocking member at least portion
Divide ground setting to be used for, prevents the effusion and/or entrance of lubricant and/or dust.Thereby, it is possible to realize advantageously reliable exhaust
And it is preferably reliably prevented the entrance of dirt and dust and prevents the effusion of lubricant.
It is further recommended that impact direction at least portion of at least one of the described exhaust unit along the percussion unit
Ground is divided to be arranged behind the driving unit.Thereby, it is possible to realize the advantageously compact configuration of the hand held power machine
Preferably good space utilization.
It is further recommended that a kind of exhaust apparatus of hand held power machine according to the present invention.
The hand held power machine of the present invention should be not limited to above-mentioned application and embodiment herein.In particular, of the invention
Hand held power machine in order to meet functional mode described here have it is mentioned here with each component, assembly unit and unit
The different quantity of quantity.
Description of the drawings
Other the advantages of, obtain from following description of the drawings.The embodiment of the present invention is shown in the drawing.It is attached
Figure, description and claims include many assemblage characteristics.Those skilled in the art can also meet purpose and ground is required individually to examine
Consider these features and comprehensive at other significant combinations.
In attached drawing：
Fig. 1：The stereogram of hand held power machine according to the present invention is shown；
Fig. 2：Show that the exploded view of a part for hand held power machine according to the present invention, the hand held power machine have
A part for exhaust apparatus；
Fig. 3：The sectional view of the part of hand held power machine according to the present invention, the hand held power machine are shown
With the exhaust apparatus；
Fig. 4：The sectional view along cutting line IV-IV of the hand held power machine of the present invention is shown.
Specific implementation mode
The hand held power machine 10 being made of hammer drill is shown in FIG. 1, with percussion unit 12.It is described hand-held
Formula toolroom machine 10 is made of electric hand tool.Arrange that a tool connects in the front area of the hand held power machine 10
Receipts portion 40, the instrument acceptance division setting is for receiving plug-in type tool 42, especially boring bar tool or chisel pricker tool.This
Outside, an auxiliary handle 44 is set in the front area of the hand held power machine 10 and in the hand held power machine 10
Main handle 46 is set on the side of the front area, and by the main handle, the hand held power machine 10 can be by
Operator manipulates.The main handle 46 is configured to U-shaped.The auxiliary handle 44 is configured to stick.The hand held power machine 10
Beater mechanism housing unit 16 receive the be not shown specifically, driving unit 14 that is made of electro-motor.The driving unit
14 are arranged the percussion unit 12 for driving the hand held power machine 10.
The percussion unit 12 not being shown specifically includes the director element being made of hammer pipe, in operating status
Middle guiding piston element.The director element setting is linearly guided for the axial direction along the percussion unit 12
Piston element.In the director element, a piston element driven by the driving unit 14 is along 38 quilt of impact direction
It is oriented to.From the driving unit 14 to from the instrument acceptance division 40, an impulse member is arranged in described along impact direction 38
Behind piston element.The impulse member is similarly moveably supported at along impact direction 38 in the director element.Edge
It impact direction 38 and a space is set between the piston element and the impulse member.In the piston element and the impact
Space between part is hermetically sealed, to be moved axially so opposite to each other in the piston element and the impulse member
When, the volume of air being enclosed in the space is extracted or is compressed.As a result, in the operation of the percussion unit 12
In state, the momentum of the piston element is passed at least partly on the impulse member.The impulse member is in operating status
In again the momentum is output on the plug-in type tool 42 being maintained in the instrument acceptance division 40 at least partly.
The hand held power machine 10 has exhaust apparatus 18 in addition.The exhaust apparatus 18 is arranged for the impact
Mechanism shell unit 16 is vented.The setting of the exhaust apparatus 18 is for the inner space row to the beater mechanism housing unit 16
Gas.The setting of the exhaust apparatus 18 is used for, in the beater mechanism shell in the operating status of the hand held power machine 10
Pressure is balanced between the inner space of unit 16 and the ambient enviroment of the beater mechanism housing unit 16, in the operating status
Described in 10 heating of hand held power machine and the therefore air in the inner space of the beater mechanism housing unit 16
Heating.For this purpose, the exhaust apparatus 18 allows between the inner space and ambient enviroment of the beater mechanism housing unit 16
Exhaust airstream.The exhaust airstream can put the ambient enviroment from the beater mechanism housing unit 16 in different times herein
It flow in the inner space or is flow to from the inner space ambient enviroment of the beater mechanism housing unit 16
In.The exhaust apparatus 18 includes a first exhaust unit 20 and an other exhaust unit 22 (Fig. 3).The first row
Gas unit 20 is configured to labyrinth type exhaust unit 24.The other exhaust unit 22 is configured to labyrinth type exhaust unit 26.Institute
It states first exhaust unit 20 and the other exhaust unit 22 is arranged with being separated from each other.The exhaust apparatus 18 has in addition
Chamber element 28, the chamber element are arranged between the first exhaust unit 20 and the other exhaust unit 22.
The first exhaust unit 20 of the exhaust apparatus 18 includes an expulsion element 48.The expulsion element 48 is in assembly shape
In state one is separated along the main handle 46 of the impact direction 38 of the percussion unit 12 towards the hand held power machine 10
Hollow space 50, the hollow space 50 surround the percussion unit 12 in the inside of the beater mechanism housing unit 16
And extend around the driving unit 14.The main handle 46 fixedly and anti-lostlyly with the hand held power machine 10
Beater mechanism housing unit 16 couples.In the beater mechanism housing unit 16 of the main handle 46 and the hand held power machine 10
Between, air can enter the inside of the beater mechanism housing unit 16 from the ambient enviroment of the hand held power machine 10
In space.Around the percussion unit 12 and around the driving unit inside the beater mechanism housing unit 16
14 hollow spaces 50 extended are filled in the air of heating in the operating status of the percussion unit 12.The first exhaust
The expulsion element 48 of unit 20 is made of snorkel.
There is the expulsion element 48 of the first exhaust unit 20 material empty slot 52, the material empty slot to constitute across described
The air duct of expulsion element 48.The setting of material empty slot 52 of the expulsion element 48 is used for：Make in the beater mechanism shell
The hollow space 50 that the inside of unit 16 extends around the percussion unit 12 and around the driving unit 14 with it is described
The chamber element 28 of exhaust apparatus 18 connects and allows to carry out between the hollow space 50 and the chamber element 28 empty
Gas exchanges.The longitudinally perpendicular impact direction 38 in the percussion unit 12 of the material empty slot 52 extends.The exhaust
The material empty slot 52 of element 48 is configured to cylinder.The material empty slot 52 of the expulsion element 48 is made of drilling.The exhaust
The material empty slot 52 of element 48 is made of stepped hole.The material empty slot 52 of the expulsion element 48 is towards the chamber element 28
End on have the diameter smaller than on the end towards the hollow space 50 of the material empty slot 52.Material empty slot 52
On the end towards the chamber element 28 of the material empty slot 52 minor diameter setting be used for, in the beater mechanism
The exhaust gas that throttling passes through the material empty slot 52 of the expulsion element 48 of the first exhaust unit 20 in the operating status of unit 12
Stream.
The expulsion element 48 is partially projecting into Edge Distance in the beater mechanism housing unit 16.But also may be used
Consider, the expulsion element 48 and the beater mechanism housing unit 16, particularly with the beater mechanism housing unit 16
Beater mechanism casing member 54 is integrally formed.Along the longitudinal 2 observation of the material empty slot 52, the beater mechanism shell list
The cap member 56 of member 16 covers the end towards the hollow space 50 of the material empty slot 52.The cap member 56 and described
Beater mechanism housing unit 16 constitutes the enclosed region around the hollow space 50 and the driving unit 14.Along the material
Expect that the longitudinal 2 observation of empty slot 52, the cap member 56 of the beater mechanism housing unit 16 are partially disposed at the expulsion element 48
Material empty slot 52 overthe openings.The cap member 56 of the beater mechanism housing unit 16 is spaced apart with the expulsion element 48
Ground is arranged.The cap member 56 of the beater mechanism housing unit 16 has geometry knot on the region towards the expulsion element 48
Structure, the geometry form block 58 and constitute labyrinth-type excluder 60 together with the expulsion element 48.By described
The labyrinth-type excluder 60 that the part of the cap member 56 of beater mechanism housing unit 16 and the expulsion element 48 are constituted is arranged
For preventing dust and dirt from entering in the hollow space 50 and preventing lubricant from being escaped from the hollow space 50.Institute
Stating exhaust apparatus 18, there is the first blocking member 32, first blocking member to be arranged in addition for preventing lubricant from the sky
Heart space 50 escapes.First blocking member 32 and the expulsion element 48 of the first exhaust unit 20 are integrally formed.Institute
Blocking member 32 is stated to be configured to stop ditch.The blocking member 32 is introduced in the expulsion element 48 of the first exhaust unit 20
In.The blocking member 32 is arranged in the region towards the hollow space 50 of the expulsion element 48.The obstruction member
The setting of part 32 is used for, and prevents lubricant from entering the block 58 of the cap member 56 of the beater mechanism housing unit 16 and the row
In the labyrinth-type excluder 60 that gas element 48 is constituted, and therefore prevent lubricant from being escaped from the hollow space 50, side
Formula is, by the lubricant collection of the percussion unit 12 in the blocking member 32.Thereby, it is possible to avoid lubricant from existing
High creep on the expulsion element 48.
The exhaust airstream is in the operating status of the percussion unit 12 from the hollow space 50 described
One blocking member, 32 side passes through the material of the expulsion element 48 of the labyrinth-type excluder 60 and the first exhaust unit 20
In the inner space 62 for the chamber element 28 that material empty slot 52 flows into the exhaust apparatus 18.In the fortune of the percussion unit 12
It is described except row state or in other states that those skilled in the art of the hand held power machine 10 think significant
Exhaust airstream can also be flowed along opposite flow direction.The setting of inner space 62 of the chamber element 28 of the exhaust apparatus 18 is used
In the exhaust airstream is braked and stablized in exhaust condition.In addition, dust and dirt particle and being pressed from both sides by the exhaust airstream
The lubricant of band is deposited in the inner space 62 of the chamber element 28, without interfering and blocking the exhaust apparatus herein
18.The negative damage of the function of the exhaust apparatus 18 can be reduced or avoided as a result, by deposition.
The chamber element 28 and the beater mechanism casing member 54 of the beater mechanism housing unit 16 are integrally formed.
The chamber element 28 has the inner space 62 (Fig. 4) surrounded by the chamber element 28 on the side of five spaces.The chamber
The inner space 62 of room element 28 is configured to be full of air.The exhaust apparatus 18 includes filter element 30, the mistake in addition
Filtering element is arranged for filtering the exhaust airstream.The filter element 30 is arranged in the inner space of the chamber element 28 62
Not by the space side of 28 limit of the chamber element.The filter element 30 limits institute on the space side openly constituted
State the inner space 62 of chamber element 28.The filter element 30 is made of felt.It is also contemplated that the filter element 30 by
Those skilled in the art think that significant other materials is constituted.The filter element 30 is configured to cuboid shape
(Fig. 2).The volume of filter element 30 described in the volume ratio of the chamber element 28 is big.The filter element 30 is configured to filter
Pad.It is parallel to the main extended surface observation of the filter element 30, the filter element 30 is in the assembled state by the shock machine
The beater mechanism casing member 54 of structure housing unit 16 surrounds and is in direct contact the impact of the beater mechanism housing unit 16
Mechanism shell element 54.Be parallel to the filter element 30 main extended surface observation, the filter element 30 have interference and
It is pressed into the assembled state in the beater mechanism casing member 54 of the beater mechanism housing unit 16.The filter element
30 are arranged between the first exhaust unit 20 and the other exhaust unit 22.The filter element 30 is arranged described
Between chamber element 28 and the other exhaust unit 22.The chamber element 28 is arranged in 20 He of first exhaust unit
Between the filter element 30.
It is seen from the instrument acceptance division 40 to the main handle 46 along the impact direction 38 of the percussion unit 12
It examines, the other exhaust unit 22 is arranged after the chamber element 28 and the filter element 30.The other row
Gas unit 22 includes an other expulsion element 64 and a spring panel element 66 (Fig. 2).The other expulsion element 64 is direct
Contact the filter element 30.The inner space 62 of the chamber element 28 is in the assembled state by means of the other exhaust
Element 64 along impact direction 38 it is partially enclosed construct.The other expulsion element 64 is in the assembled state along impact side
The filter element 30 is preloaded to 38.The filter element 30 by force closure is kept as a result,.In addition, the exhaust apparatus
There are two other blocking member 34,36, described two other blocking member settings to be used for for 18 tools, prevents dust from entering institute
In the inner space 62 for stating chamber element 28.The beater mechanism casing member 54 and the other expulsion element 64 are contacting
Correspondingly with one in the other blocking member 34,36 in region, the filter element described in the contact area
30 are contacted in the assembled state.A blocking member 34 in the other blocking member and beater mechanism shell member
Part 54 is integrally formed.In the other blocking member another 36 with the other expulsion element 64 integrally structure
At.The other blocking member 34,36 is pressed against in the assembled state on the filter element 30, and thus, it is possible to improve surface
Pressure.The other blocking member 34,36 is configured to sealing seamed edge.The other blocking member 34,36 should prevent ash
Dirt is laterally from the inner space 62 that 30 side of the filter element enters the chamber element 28.
It is resiliently deflectable that the other expulsion element 64 has press strip 68, the depression bar structure in addition.It is described in addition
The press strip 68 of expulsion element 64 be arranged in circumferential direction around the other expulsion element 64.The press strip 68 with it is described
Other expulsion element 64 integrally constructs.The setting of the press strip 68 of the other expulsion element 64 is used for, along impact
Direction 38 is observed, the fixed other exhaust relative to 54 force closure of beater mechanism casing member in the assembled state
Element 64.The press strip 68 of the other expulsion element 64 in disassembly status V-arrangement from the other expulsion element
64 protrude and are squeezed towards the other expulsion element 64 in assembly.By the elastic force of the press strip 68, the pressure
Item is pressed against on the beater mechanism casing member 54, and the other expulsion element 64 is in the assembled state along punching as a result,
Direction 38 is hit to be fixed.In addition, the press strip 68, which is constituted, assembles anti-lost protection.
In addition there is the other expulsion element 64 at least one spacer element 70, at least one spacer element to exist
The filter element 30 is in direct contact in assembled state.There are two spacer elements 70 for the other tool of expulsion element 64.It is described
Spacer element 70 is integrally formed with the other expulsion element 64.The spacer element 70 is configured to elongated.The interval
The profile with arc on the side towards the filter element 30 of element 70.The setting of the spacer element 70 is used for, and is prevented
The filter element 30 is in the assembled state to other 64 arching of expulsion element.This prevents the filter elements
30 move forward in the exhaust chamber 72 that two are made of the other expulsion element 64 and therefore can prevent the mistake
The reduction of the effective filtration area of filtering element 30.
The other expulsion element 64 has at least one other material empty slot in addition, described at least one other
Material empty slot is made of exhaust gap 74.There are two exhaust gaps 74 for the other tool of expulsion element 64.The exhaust gap
It is described that 74 compositions can allow the exhaust airstream to be passed through between the exhaust chamber 72 and the ambient enviroment of the exhaust apparatus 18
The channel of other expulsion element 64.With the material empty slot for being configured to drilling of the expulsion element 48 of the first exhaust unit 20
52 compare, and the exhaust gap 74 this have the advantage that, can advantageously reduce either prevents from blocking or block.
The other expulsion element 64 on the side of the filter element 30 with the spring panel element 66 1
It rises and constitutes an other labyrinth-type excluder 76.The labyrinth-type excluder 76 has double labyrinths.The other exhaust
The setting of the labyrinth-type excluder 76 that element 64 and the spring panel element 66 are constituted is used for, and prevents dust and dirt from entering
Into the exhaust chamber 72.In assembly, first by the filter element 30 and then by the other expulsion element
64 are put into the beater mechanism casing member 54 and and then fix and tighten the assembly group for constituting the main handle 46
Part (Fig. 2).Therefore assembling assembly that the other exhaust unit 22 is configured the main handle 46 in the assembled state is fixed
And holding.The assembling assembly for constituting the main handle 46 fixes along impact direction 38 and loads the filter element 30 and institute
State other expulsion element 64.There is the spring panel element 66 at least one retention tab 78, at least one retention tab to exist
In assembled state along impact direction 38 be pressed onto on the other expulsion element 64 and along impact direction 38 fix described in
Other expulsion element.Thus, it is possible to advantageously saved when manufacturing the hand held power machine 10 additional assembling element and/
Or installation step.Thus, it can be achieved that the exhaust apparatus 18 of the hand held power machine 10 it is simple assembly and it is of low cost
, it is simple and safeguard friendly configuration.
In exhaust condition, the exhaust airstream is passed through from the hollow space 50 on first blocking member, 32 side
The material empty slot 52 of the expulsion element 48 of the labyrinth-type excluder 60 and the first exhaust unit 20 flows into the exhaust
In the inner space 62 of the chamber element 28 of device 18 and from there the discharge chamber is flow into across the filter element 30
The other labyrinth-type excluder 76 in room 72 and across exhaust gap 74 and the other expulsion element 64 from
The exhaust apparatus 18 flows out.Here, the exhaust airstream is turned to 90 ° in multiple times, particularly at least substantially.But also may be used
Consider, the exhaust airstream is flowed along opposite flow direction.Along the impact direction 38 of the percussion unit 12 from described
Instrument acceptance division 40 to the main handle 46 observe, the exhaust apparatus 18 be arranged behind the driving unit 14 or after
Side.
Claims (9)
1. a kind of electric hand tool, at least one percussion unit (12), at least one driving unit
(14), beater mechanism housing unit (16) and exhaust apparatus (18), the driving unit are arranged at least partly for driving
Percussion unit (12) is stated, the beater mechanism housing unit is at least partially around the percussion unit (12), institute
Exhaust apparatus setting is stated for being vented to the beater mechanism housing unit (16), which is characterized in that the exhaust apparatus (18)
Including first exhaust unit (20) and at least one other, redundancy at least partly exhaust unit (22), wherein described the
One exhaust unit (20) and at least one other exhaust unit (22) are arranged so that exhaust airstream is worn before and after successive
Flow the first exhaust unit (20) and at least one other exhaust unit (22), wherein the exhaust apparatus (18) includes
At least one chamber element (28), the chamber element be arranged in the first exhaust unit (20) and it is described it is at least one in addition
Exhaust unit (22) between, wherein the chamber element (28) be provided in exhaust condition brake and stablize described in
The inner space (62) of exhaust airstream.
2. electric hand tool according to claim 1, which is characterized in that the first exhaust unit (20) is at least
Partly it is configured to labyrinth type exhaust unit (24).
3. electric hand tool according to claim 1 or 2, which is characterized in that at least one other row
Gas unit (22) is at least partly constructed to labyrinth type exhaust unit (26).
4. electric hand tool according to claim 1 or 2, which is characterized in that the first exhaust unit (20)
It is arranged with being separated from each other at least one other exhaust unit (22).
5. electric hand tool according to claim 1 or 2, which is characterized in that the exhaust apparatus (18) includes
At least one filter element (30), the filter element is arranged at least partly is used for filtering exhaust air-flow.
6. electric hand tool according to claim 5, which is characterized in that at least one filter element (30)
It is arranged between the first exhaust unit (20) and at least one other exhaust unit (22).
7. electric hand tool according to claim 1 or 2, which is characterized in that the exhaust apparatus (18) includes
At least one blocking member (32,34,36), the blocking member be arranged at least partly for prevent lubricant effusion and/
Or the entrance of dust.
8. electric hand tool according to claim 1 or 2, which is characterized in that the first exhaust unit (20)
With at least one of at least one other exhaust unit (22) along the impact side of the percussion unit (12)
It is at least partially disposed at behind the driving unit (14) to (38).
9. according to the exhaust apparatus of the claims any one of them electric hand tool (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013211994.1A DE102013211994A1 (en) | 2013-06-25 | 2013-06-25 | Hand tool |
| DE102013211994.1 | 2013-06-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104249336A CN104249336A (en) | 2014-12-31 |
| CN104249336B true CN104249336B (en) | 2018-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410281734.1A Active CN104249336B (en) | 2013-06-25 | 2014-06-20 | Hand held power machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104249336B (en) |
| DE (1) | DE102013211994A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018208048A1 (en) * | 2018-05-23 | 2019-11-28 | Robert Bosch Gmbh | Hand tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2210020A (en) * | 1939-01-23 | 1940-08-06 | Anderson Norman | Power hammer |
| CN1265956A (en) * | 1999-03-05 | 2000-09-13 | 斯耐普昂工具公司 | Power tool with air bias-guiding apparatus for exhausting motor gas |
| CN1532015A (en) * | 2003-03-25 | 2004-09-29 | 罗伯特・博施有限公司 | Electric tool |
| CN1945936A (en) * | 2005-04-20 | 2007-04-11 | 日立工机株式会社 | Power tool |
| CN101992455A (en) * | 2009-08-05 | 2011-03-30 | 株式会社牧田 | Power tool |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4726732B2 (en) * | 2006-08-04 | 2011-07-20 | 株式会社マキタ | Work tools |
| JP5758273B2 (en) * | 2011-11-15 | 2015-08-05 | 株式会社マキタ | Driving tool |
-
2013
- 2013-06-25 DE DE102013211994.1A patent/DE102013211994A1/en active Pending
-
2014
- 2014-06-20 CN CN201410281734.1A patent/CN104249336B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2210020A (en) * | 1939-01-23 | 1940-08-06 | Anderson Norman | Power hammer |
| CN1265956A (en) * | 1999-03-05 | 2000-09-13 | 斯耐普昂工具公司 | Power tool with air bias-guiding apparatus for exhausting motor gas |
| CN1532015A (en) * | 2003-03-25 | 2004-09-29 | 罗伯特・博施有限公司 | Electric tool |
| CN1945936A (en) * | 2005-04-20 | 2007-04-11 | 日立工机株式会社 | Power tool |
| CN101992455A (en) * | 2009-08-05 | 2011-03-30 | 株式会社牧田 | Power tool |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013211994A1 (en) | 2015-01-08 |
| CN104249336A (en) | 2014-12-31 |
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