EP1968772A1 - Portable electric power tool - Google Patents
Portable electric power toolInfo
- Publication number
- EP1968772A1 EP1968772A1 EP06830042A EP06830042A EP1968772A1 EP 1968772 A1 EP1968772 A1 EP 1968772A1 EP 06830042 A EP06830042 A EP 06830042A EP 06830042 A EP06830042 A EP 06830042A EP 1968772 A1 EP1968772 A1 EP 1968772A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- power tool
- transmission member
- drive motor
- tool according
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002918 waste heat Substances 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
- B27C1/00—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
- B27C1/10—Hand planes equipped with power-driven cutter blocks
Definitions
- the invention relates to a handgebowtes power tool according to the preamble of claim 1.
- a hand planer with a housing, a motor and a planer shaft with it can be gripped planer knives, the rotational movement of the drive shaft of the motor is transmitted via a suitable transmission member on the planer shaft.
- This transfer member is for example a Ubertragungsriemen, which lies within the housing of the planer, wherein the area is covered in the housing with the Ubertragungsriemen of a detachable housing cover.
- Ventilation slots are introduced into the housing of the planing machine, through which a heat exchange is made possible.
- a Lufterrad can be used in principle, which is driven by the drive shaft of the engine and via the ventilation slots sucks a Kuhlluftstrom from the environment and leads over the engine.
- the invention has for its object to improve air cooling in hand-held power tools. Expediently, in addition to the drive motor and gear parts and transmission members, via which the rotational movement of the drive shaft of the electric motor is transmitted to the cutting tool to be cooled with little design effort.
- the inventive, hand-guided power tool which has an electric drive motor in a housing whose drive shaft is coupled via a transmission member with a rotating cutting tool, has first Einflight openings in the housing, is sucked through the Kuhlluft of the Lucaserrad and guided over the drive motor. Furthermore, additional inflow openings in the housing are provided on the side adjacent to the transmission element, via which cooling air from the environment can also flow into the housing interior for cooling the transmission element or the transmission parts located therein. This region of the housing with the transmission parts or transmission element arranged therein communicates via a connection channel, which is formed in the housing, with the flow path between the first inflow openings and the air wheel.
- the high mass air flow masses which are guided into the housing of the power tool via both the first and the additional inflow openings, are influenced by the performance of the air impeller and by the geometry of the flow channels and the inflow openings.
- the first Stromungso réelleen and the additional Stromungso réelleen for bringing the Kuhlluftstromes are arranged in the gear housing receiving housing area on opposite sides of the housing.
- the communication passage between the first flow space located between the first flow ports and the air wheel and the gear unit receiving area on the opposite side of the housing substantially transverse to the longitudinal axis of the power tool.
- the connecting channel between the Gehause Scheme with the transmission member and the Stromungsweg between the first Einstromo réelleen and the Heilerrad is seen in the longitudinal direction of the power tool advantageously between the drive shaft of the electric motor and the shaft of the cutting tool. In principle, however, are also positioning of the connecting channel in the axial direction before or behind the area between the drive shaft of the electric motor and the shaft of the cutting tool.
- the transmission unit facing opening of the connection channel is appropriate in height of and immediately behind the transmission member or the transmission unit and is also the additional Einströmo réelleen opposite, so that the sucked Kuhl Kunststoff is forced to flow along the transmission member or to be cooled transmission unit along.
- the combined Kuhlluftstrom downstream of the Luftterrades in an air Span channel are sucked off over the removed from the cutting tool chip and transported to the outside.
- the power tool is an example of a hand planer, wherein the transmission member is a belt between the drive shaft of the electric motor and the planer shaft of the planer blade.
- the transmission member is a belt between the drive shaft of the electric motor and the planer shaft of the planer blade.
- it is also an application in other hand tool machines into consideration, in which a movement transmission of the electromotive rotation is performed on a cutting tool by means of a belt or a gear unit.
- FIG. 1 is a perspective view of a hand planer with drawn air arrows that indicate the direction of flow of Kuhlluftstrome in the housing of the machine
- FIG. 3 shows a section through the hand planer with illustrated electric drive motor and driven by the drive motor shipserrad that generates a first and a second Kuhlluftstrom
- Fig. 4 is a further perspective view of
- Hand planer shown without gear cover with a view of the Ubertragungsriemens between the drive shaft of the electric motor and planer shaft.
- hand-guided power tool is a hand planer 1, which has an upper handle 2 on a housing 2 and in the front area an additional handle 4, on the same time by turning about its vertical axis, the cutting depth of the hand planer is adjustable.
- a lateral housing part 5 is a plurality of first Einstromo réelleen 6, which are introduced in the form of air slots in the advantageously made of plastic housing 2 and sucked on a first Kuhlluftstrom from the environment and according to arrow 7 in the housing interior for cooling the electric motor of Hand planer is passed.
- This first Kuhlluftstrom is sucked in the side and runs transversely to the longitudinal axis of the hand planer.
- a second Kuhlluftstrom is, as indicated in Fig.
- the Kuhl povertystrom marked with the arrows 8 includes the first and the second Kuhlluftstrom.
- the housing part 5 is located opposite the longitudinal axis 11 of the hand planer 1 Side a removable gear cover 10 disposed on the housing 2, wherein the lateral housing part 5 on one side of the housing and the gear cover 10 on the opposite side of the housing are approximately symmetrical to the longitudinal axis 11.
- gear units or transmission members which are shown in detail in Figs. 3 and 4 and via which the drive movement of the drive shaft 14 of the motor of the hand planer is transmitted to the rotating cutting tool.
- Both the first Kuhlluftstrom 7 and the second Kuhlluftstrom 9 are generated by a Heilerrad 13 which is rotatably coupled to the drive shaft 14 of the drive motor.
- the Heilerrad 13 is located in the interior of the housing on the however, the area 16 adjacent to the area covered by the gear cover 10 is separated from the area 16 by an inner housing wall.
- the Heilerrad 13 generates a negative pressure, whereby the two Kuhlluftstrome 7 and 9 are sucked in via the Einstromo réelleen 6 and 12 respectively.
- Downstream of the Lufterrades 13 of the Kuhlluftstrom is deflected in the longitudinal direction of the machine to the front part of the housing (arrow 17) and further derived according to a first variant on Abflowo réelleen 19 in the front part of the gear cover 10 as indicated by arrow 18 in the environment or, according to a second Variant, deflected by 180 ° according to arrow 20 in an air-chip channel 21, transported over the removed from the cutting tool of the hand planer chip to the rear portion of the hand planer and derived from the housing 2.
- the air-chip channel 21 is located inside the main handle 3.
- the connecting channel 15 lies between the region 16 which is covered by the gear cover 10 and the opposite housing part 5 in the longitudinal direction of the hand planer 1 in front of the gear units 23 protruding into the region 16, so that the second Kuhl povertystrom 9 brought over the additional Einstromo réelleen 12, must stroke immediately past these gear units 23 and this cools. Subsequently, the additional Kuhlluftstrom 9 is passed in the transverse direction through the connecting channel 15 and deflected in the opposite housing part 5 and combined with the first Kuhlluftstrom.
- the gear units projecting into the region 16 are the end face of the drive shaft 14, around which a transmission belt 24 (FIG. 4) is stretched for movement transmission onto the shaft of the cutting blade.
- FIG. 4 shows the hand planer 1 in a perspective view with the gear cover removed.
- the transmission belt 24 can be seen between the drive shaft 14 and the shaft 25 of the cutting tool lying further forward with respect to the longitudinal direction. Entered are also the second Kuhlluftstrom 9, which flows along both the gear units 23 and the Ubertragungsriemen 24 and is then passed through a Mundungso réelle 25 of the connecting channel 15 through this to the opposite side of the machine.
- FIG. 4 Shown in FIG. 4 is also a housing section 26, which is separated from the region 16, through which the second cooling air flow 9 flows, and has a flow channel for the discharge of the combined cooling air streams downstream of the air wheel.
- a housing section 26 of the arrow 17 which, as shown in Fig. 2, represents the United Kuhlluftstrom after passing through the Heilerrades.
- the combined Kuhlluftstrom 17 can be deflected according to arrow 20 in the air-chip channel for discharging the panel, or, alternatively, be derived directly from the housing.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Milling, Drilling, And Turning Of Wood (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510062697 DE102005062697A1 (en) | 2005-12-28 | 2005-12-28 | Hand-held power tool |
PCT/EP2006/068639 WO2007077050A1 (en) | 2005-12-28 | 2006-11-20 | Portable electric power tool |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1968772A1 true EP1968772A1 (en) | 2008-09-17 |
EP1968772B1 EP1968772B1 (en) | 2011-02-16 |
Family
ID=37776799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06830042A Not-in-force EP1968772B1 (en) | 2005-12-28 | 2006-11-20 | Portable electric power tool |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1968772B1 (en) |
CN (1) | CN101351309B (en) |
DE (2) | DE102005062697A1 (en) |
WO (1) | WO2007077050A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101780680A (en) * | 2010-03-05 | 2010-07-21 | 宁波市鄞州稳汀机电科技有限公司 | Trimming and dividing machine for woodworking |
DE102010030376A1 (en) * | 2010-06-23 | 2011-12-29 | Robert Bosch Gmbh | Hand tool |
EP2465647A3 (en) * | 2010-12-20 | 2013-01-16 | HILTI Aktiengesellschaft | Hand tool machine with air circulation element |
DE102013203617B4 (en) | 2013-03-04 | 2023-12-14 | Robert Bosch Gmbh | Hand tool |
DE102013208705A1 (en) * | 2013-05-13 | 2014-11-13 | Robert Bosch Gmbh | Portable planer |
JP6127840B2 (en) * | 2013-09-02 | 2017-05-17 | 日立工機株式会社 | Electric tool |
JP6238064B2 (en) * | 2013-12-27 | 2017-11-29 | 日立工機株式会社 | Electric plane |
EP2923802A1 (en) * | 2014-03-25 | 2015-09-30 | HILTI Aktiengesellschaft | Belt cooling |
DE102014207867A1 (en) * | 2014-04-25 | 2015-10-29 | Robert Bosch Gmbh | Machine tool cooling device |
CN110605765A (en) * | 2019-11-09 | 2019-12-24 | 泰州市汇顶机械制造有限公司 | Electric planer convenient to chip removal is removed dust |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1943624U (en) * | 1966-04-23 | 1966-08-04 | Scheer & Cie C F | HAND PLANING MACHINE. |
DE3406728A1 (en) * | 1984-02-24 | 1985-08-29 | Karl M. Reich Maschinenfabrik GmbH, 7440 Nürtingen | HAND PLANER |
DE19512262C2 (en) * | 1995-03-24 | 2003-07-31 | Black & Decker Inc | Hand-held, motor-driven planer |
DE19839963A1 (en) * | 1998-09-02 | 2000-03-09 | Hilti Ag | Power tool |
DE10358027A1 (en) * | 2003-12-11 | 2005-07-21 | Hilti Ag | hand tool |
GB0428210D0 (en) * | 2004-12-23 | 2005-01-26 | Black & Decker Inc | Mode change mechanism |
-
2005
- 2005-12-28 DE DE200510062697 patent/DE102005062697A1/en not_active Withdrawn
-
2006
- 2006-11-20 CN CN2006800497361A patent/CN101351309B/en active Active
- 2006-11-20 DE DE502006008927T patent/DE502006008927D1/en active Active
- 2006-11-20 WO PCT/EP2006/068639 patent/WO2007077050A1/en active Application Filing
- 2006-11-20 EP EP06830042A patent/EP1968772B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2007077050A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN101351309A (en) | 2009-01-21 |
WO2007077050A1 (en) | 2007-07-12 |
DE502006008927D1 (en) | 2011-03-31 |
EP1968772B1 (en) | 2011-02-16 |
CN101351309B (en) | 2012-05-23 |
DE102005062697A1 (en) | 2007-07-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2007077050A1 (en) | Portable electric power tool | |
DE4238564C2 (en) | Power tool | |
EP2146820B2 (en) | Machine tool, particularly hand machine tool | |
EP2371202B1 (en) | Manually operated work device | |
DE10261572A1 (en) | Electric hand tool machine e.g. drill, has arrangement for generating additional cooling air flow that passes at least one machine component outside or in low flow region of cooling air flow | |
WO2002034462A1 (en) | Hand tool comprising a dust suction device | |
EP2841235B1 (en) | Hand-held machine tool with fan arrangement | |
WO2007080003A1 (en) | Hand machine tool | |
EP2191940A1 (en) | Electrical tool | |
DE19701082B4 (en) | Suction / Blower | |
DE102013208705A1 (en) | Portable planer | |
EP2476520A2 (en) | Electric machine tool, in particular a grinding or polishing machine | |
WO2011160871A1 (en) | Hand-held power tool | |
EP1872916A2 (en) | Handheld electrical tool with a suction module for a dust separation device | |
DE10258501A1 (en) | Wood planing machine with a chip removal mechanism | |
DE202018104815U1 (en) | power tool | |
EP1541293B1 (en) | Hand tool | |
EP4084934A1 (en) | Machine tool and method for cooling a drive unit of the machine tool | |
EP2465647A2 (en) | Hand tool machine with air circulation element | |
DE202019105846U1 (en) | Electric hand machine tool | |
DE102015111717A1 (en) | Luftleitscheibe | |
DE1867318U (en) | ELECTRIC ANGLE GRINDING MACHINE WITH VENTILATION. | |
EP3825065B1 (en) | Battery-powered tool with cooling air guidance | |
EP4230352A1 (en) | Portable working tool | |
DE1552224B2 (en) | Hand tool driven by an electric motor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20080728 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
|
17Q | First examination report despatched |
Effective date: 20090716 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
DAX | Request for extension of the european patent (deleted) | ||
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 502006008927 Country of ref document: DE Date of ref document: 20110331 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502006008927 Country of ref document: DE Effective date: 20110331 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20111117 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502006008927 Country of ref document: DE Effective date: 20111117 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20141120 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20141118 Year of fee payment: 9 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20151120 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20160729 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20151120 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20151130 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20230124 Year of fee payment: 17 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502006008927 Country of ref document: DE |