CN100467233C - Electric tool machine - Google Patents
Electric tool machine Download PDFInfo
- Publication number
- CN100467233C CN100467233C CNB200410002734XA CN200410002734A CN100467233C CN 100467233 C CN100467233 C CN 100467233C CN B200410002734X A CNB200410002734X A CN B200410002734XA CN 200410002734 A CN200410002734 A CN 200410002734A CN 100467233 C CN100467233 C CN 100467233C
- Authority
- CN
- China
- Prior art keywords
- housing
- electric tools
- drive motor
- half shell
- sealing
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000005192 partition Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004744 fore-foot Anatomy 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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
- B25F5/02—Construction of casings, bodies or handles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Portable Power Tools In General (AREA)
- Percussive Tools And Related Accessories (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to an electric tool with an electric drive motor and an at least two-part housing, of which the housing halves 16, 18, divided in the axial direction with respect to the drive motor, are releasably and sealingly interconnected. It is provided that a housing parting plane 20 of the mutually abutting housing halves is arranged such that it is separated from a sealing plane at least in certain sections.
Description
Technical field
The present invention relates to a kind of electric tools.
Background technology
Electric tools, as hand held electric drill machine and percussive drill usually with so-called pistol-type structure manufacturing.A common housing is made up of at least two discerptible half shells, and they are fitted to each other with so-called jar of shape structure.Two and half shells are typically provided with a seal, and wherein the profile of seal can be arranged in a common plane with the housing interface.At this, shortcoming is the configuration that the configuration free degree is restricted or seal may have relative complex of housing boundary.
In the configuration of a conversion, the profile of seal moves to cutter receiver direction from the housing interface.At this, the exhaust port area of the drive motor of electric tools typically is positioned at case of transmission.Because optimal ventilation and case of transmission stability, this structure is disadvantageous.
DE 201 17 471 U1 disclose a kind of hand held power machine with two housing sections, this housing relative drive motor axially on half shell divided connect fixed to one anotherly, wherein, sealing device is on the vertical sealing surface of relative housing longitudinal axis.
In addition, CN11511921 (DE 195 40 391 A1) discloses a kind of boring and rock drill, it has a housing two-part, that be made of a drive housing and motor casing, and half shell that the relative drive motor of this housing is divided in the axial direction detachably connects each other along a housing interface perpendicular to the housing longitudinal axis.Being tightly connected between two and half shells is not set up.
WO 02/058891 A1 discloses a kind of multi-piece type housing that is used for electric tools, and it has a handle shell assembly that is made of two and half shells, and this assembly is connected with the end cover assembly of a single-piece along an interface perpendicular to the housing longitudinal axis.
Summary of the invention
The present invention proposes a kind of electric tools, it has a drive motor and a two-part at least housing, this housing relative drive motor axially on half shell divided form connection detachable and sealing each other, wherein, the housing interface of half shell that connects toward each other section ground and sealing surface branch at least is arranged, wherein the relative housing longitudinal axis of this housing interface is provided with obliquely, and wherein, the sealing face is provided with perpendicular to housing longitudinal axis ground.
According to a favourable configuration, the sealing ring that is used to seal half shell connected to one another section ground and this housing interface at least is provided with dividually.Therefore sealing function takes off connection mutually with the housing design, can obtain the big as far as possible configuration free degree thus when the junction of structure two and half shells.
According to a configuration of the present invention, sealing ring is substantially perpendicular to housing longitudinal axis ground and is provided with.This layout has realized minimizing of sealing profile, because sealing ring has embodied the beeline of inner function geometry.
The interfacial configuration of housing depends on design and structure viewpoint and irrelevant with the layout of housing seal part.
Sealing ring especially can be placed in the radial slot of one and half shells, so that abut on the sagittal plane of second half shell when housing is closed.Mild compression by sealing ring obtains extraordinary sealing effectiveness.Sealing ring itself can have closed circular contour or for example be O RunddichtringO or similarity piece.Sealing ring is at all without any need for the high configuration of cost, so sealing ring can be implemented on the cost very suitably.
To this conversion ground, sealing ring can be set between the axial seal face of two and half shells or between the axial seal face of one and half shells and a spacer flanger dish.The configuration of seal configuration depends primarily on other configuration of position relation and electric tools.
By abandoning using the multidimensional sealing surface, sealing device can both simply and to tolerance be implemented insensitively.It can be done very for a short time and be compact simultaneously.
Another configuration of the present invention is, is provided with the air vent that at least one is used to cool off drive motor at least in one and half shells.This at least one air vent preferably is configured to separate with the housing interface.Exhaust port area preferably is located in the later half shell that wherein is provided with drive motor.The connection profile that is used for case of transmission be not discontinuously but the annular constitute closedly and highly stable thus.
Can additionally realize big relatively air vent according to structure of the present invention, because sealing surface only is positioned on the very little side face of housing.To outer closure, can not invade and lubricant can not be overflowed thus by dirt by described sealing for case of transmission.That always seal for the composition surface of butt joint each other of reason two and half shells of intensity and not by interruptions such as breach, air vents.
Case of transmission is longer than motor field frame usually on percussive drill and hand held electric drill machine.This relates in particular to rock drill or the percussive drill with pricker cutter function.Can hide the length of case of transmission by the interfacial flexible arrangement of housing.Because therefore the extensible speed changer structure space that surpasses of housing boundary obtains very high flexibility on the housing configuration.
According to a favourable configuration, described drive motor is arranged in one and half shells and is provided with a speed changer in second half shell.
Other favourable configuration of the present invention can be drawn by the feature described in remaining specification and the accompanying drawing.
Description of drawings
Below will describe the present invention in detail by preferred embodiment by accompanying drawing.Accompanying drawing is:
Fig. 1: the general diagrammatic sketch of a percussive drill, and
Fig. 2 and Fig. 3: according to each partial sectional view of the percussive drill of Fig. 1.
The specific embodiment
Fig. 1 represents an electric tools, the schematic side elevation of hand-held drilling machine or so-called percussive drill 10 for example.This electric tools has an elongate housing 14, and this housing has one and has the pistol-shaped handgrip section 24 of switch 22 and have a rotary chuck 30 at the front end that is positioned at the opposite in the rear end.This housing 14 can separate in the axial direction, and wherein two and half shells 16,18 connect each other hermetically.Be typically provided with a drive motor (not shown) in the later half shell 16 that has position handgrip section 24 thereon, this motor can and can change rotating speed in case of necessity by switch 22 startings.
Be provided with a speed changer in the embodiment shown in preceding half shell 18, it is intended for the adaptive of the output shaft of drive motor and rotating speed between the rotary chuck and torque.In addition, in the forefoot area of preceding half shell 18, be provided with one and support handgrip 26, by this supports handgrip can during percussive drilling, add guide this toolroom machine also can absorb detent torque (
).
Two and half shells 16 and 18 have a housing interface 20, and this housing interface tilts a little with respect to an axial plane vertical with the housing longitudinal axis in the embodiment shown.Be provided with an air vent 28 dividually with housing interface 20 in later half shell 16, it is used for making cold air to be input to drive motor.On around the later half shell 16, preferably can be provided with a plurality of such air vents 28.Air vent 28 is used for two and half shells 16,18 mechanical connection better with the distance of housing interface 20 because can guarantee in this way a closure, around the composition surface, this composition surface can not interrupted by ventilating opening or similar portions.
Fig. 2 represents the side view of the junction of two and half shells 16,18 with partial sectional view.Fig. 3 represents a vertical view of this junction with partial sectional view.Be provided with the later half shell 16 drive motor (not shown), that be positioned at the right therein and illustrated with partly dissecing, and preceding half shell 18 that wherein is provided with speed changer 34 is illustrated with dissecing.
Because speed changer 34 need be subjected to preventing that dirt and dust from entering and the protection of lubricant effusion, so be provided with a seal.Be provided with a radial slot 36 in a section of spacer flanger dish 42, put into a sealing ring 32 in this groove, the sealing circle stretches out radial slot 36 a little.When spacer flanger dish 42 being pushed preceding half shell 18 maybe when merging this two and half shell 16,18 o'clock, the interior sagittal plane 38 of preceding half shell 18 is pulled on the sealing ring 32, makes the sealing ring mild compression thus, obtains good sealing effectiveness like this.
Can find out significantly that the sealing ring 32 complete composition surface with two and half shells 16,18 on its function and layout that is substantially perpendicular to housing longitudinal axis 40 is taken off connection mutually and is set at outside the housing interface 20.Therefore, obtain the positiver sealing of case of transmission on the one hand, and when structure housing outline and interface, obtain the big as far as possible configuration and the free degree aspect the appearance design on the other hand.This interface also can be offset to the housing longitudinal axis without a doubt.When needing, this housing interface 20 also can have one or more stages on the housing circumference.
The composition surface of two and half shells 16,18 almost can have any configuration.In illustrated embodiment, for example be configured to the groove and the flange that match each other, as clearly representing by Fig. 2.Fig. 3 represents another configuration, wherein, surrounds to the engaged at end marginal portion of preceding half shell 18 on the later half shell 16 corresponding annular trip edges.
Housing parts can be advantageously by plastics, the light metal of die casting or the similar material manufacturing of injection moulding.Can make housing 14 required each profile and composition surface thus without a doubt.
Claims (7)
1. electric tools (10), have a drive motor and a two-part at least housing (14), this housing relative drive motor axially on half shell (16 divided, 18) detachable each other and connection hermetically, wherein, half shell (16 that these connect toward each other, 18) housing interface (20) section ground and a sealing surface branch at least is arranged, wherein, described housing interface (20) housing longitudinal axis (40) relatively is provided with obliquely, wherein, described sealing surface is substantially perpendicular to the housing longitudinal axis and is provided with (40).
2. according to the electric tools of claim 1, it is characterized in that: the sealing ring (32) that is used to seal half shell connected to one another (16,18) section ground and housing interface (20) at least is provided with dividually.
3. according to the electric tools of claim 2, it is characterized in that: sealing circle (32) is placed in the radial slot (36) of one and half shells (16 or 18) and abuts on the sagittal plane (38) of second half shell (18 or 16).
4. according to the electric tools of claim 2, it is characterized in that: sealing circle (32) is set between the axial seal face of two and half shells (16,18).
5. according to one electric tools in the above claim, it is characterized in that: in one and half shells (16), be provided with at least one air vent that is used to cool off drive motor (28) at least.
6. according to the electric tools of claim 5, it is characterized in that: described at least one air vent (28) is configured to and housing interface (20) partition distance.
7. according to one electric tools in the claim 1 to 4, it is characterized in that: described drive motor is arranged in one and half shells (16 or 18) and is provided with a speed changer (34) in second half shell (18 or 16).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10313782.3 | 2003-03-20 | ||
| DE10313782A DE10313782B4 (en) | 2003-03-20 | 2003-03-20 | Power tool with multi-part housing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1532029A CN1532029A (en) | 2004-09-29 |
| CN100467233C true CN100467233C (en) | 2009-03-11 |
Family
ID=32115626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410002734XA Expired - Lifetime CN100467233C (en) | 2003-03-20 | 2004-01-19 | Electric tool machine |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN100467233C (en) |
| DE (1) | DE10313782B4 (en) |
| GB (1) | GB2399530B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005047353A1 (en) * | 2005-10-04 | 2007-04-05 | Robert Bosch Gmbh | Electric-powered machine tool e.g. hand-operated power drill, for use in pistol construction, has flange to drive train and divided into drive end and gear end bearing bracket units connected with each other by vibration damping unit |
| US20090258584A1 (en) * | 2008-04-10 | 2009-10-15 | X'pole Precision Tools, Inc. | Multi-Shell Air-Tight Compartmentalized Casings |
| JP2014028412A (en) * | 2012-07-31 | 2014-02-13 | Makita Corp | Power tool |
| JP2014069252A (en) * | 2012-09-28 | 2014-04-21 | Hitachi Koki Co Ltd | Power tool |
| CN103978467A (en) * | 2014-05-22 | 2014-08-13 | 姚丽 | Shell for electric die grinder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0142650A2 (en) * | 1983-11-19 | 1985-05-29 | C. & E. FEIN GmbH & Co. | Handle for electric tools |
| CN1151921A (en) * | 1995-10-30 | 1997-06-18 | 希尔蒂股份公司 | Drilling and quarrying machine |
| US5692574A (en) * | 1994-07-12 | 1997-12-02 | Makita Corporation | Vibrating tool and a vibration isolating ring |
| CN2310655Y (en) * | 1997-11-19 | 1999-03-17 | 金新智 | Electric impact drill |
| DE20117471U1 (en) * | 2001-10-25 | 2002-01-17 | Hilti Ag | Gear housing of a hand tool device |
| WO2002058891A1 (en) * | 2001-01-23 | 2002-08-01 | Black & Decker Inc. | Housing with functional overmold |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL262920A (en) * | 1960-03-29 | |||
| DE1957235C3 (en) * | 1969-11-14 | 1974-04-25 | Robert Bosch Gmbh, 7000 Stuttgart | Motor-driven hammer drill |
| JPH04223861A (en) * | 1990-12-20 | 1992-08-13 | Makita Corp | Portable rotating tool |
| US5372420A (en) * | 1993-03-11 | 1994-12-13 | Black & Decker Inc. | Device having rotatable head |
| DE19900404A1 (en) * | 1998-12-31 | 2000-07-13 | Fein C & E | Power tool, especially angle grinder |
| EP1016504B1 (en) * | 1998-12-31 | 2005-01-19 | C. & E. Fein GmbH | Electric power tool, especially an angle grinder |
-
2003
- 2003-03-20 DE DE10313782A patent/DE10313782B4/en not_active Expired - Lifetime
-
2004
- 2004-01-19 CN CNB200410002734XA patent/CN100467233C/en not_active Expired - Lifetime
- 2004-03-15 GB GB0405780A patent/GB2399530B/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0142650A2 (en) * | 1983-11-19 | 1985-05-29 | C. & E. FEIN GmbH & Co. | Handle for electric tools |
| US5692574A (en) * | 1994-07-12 | 1997-12-02 | Makita Corporation | Vibrating tool and a vibration isolating ring |
| CN1151921A (en) * | 1995-10-30 | 1997-06-18 | 希尔蒂股份公司 | Drilling and quarrying machine |
| CN2310655Y (en) * | 1997-11-19 | 1999-03-17 | 金新智 | Electric impact drill |
| WO2002058891A1 (en) * | 2001-01-23 | 2002-08-01 | Black & Decker Inc. | Housing with functional overmold |
| DE20117471U1 (en) * | 2001-10-25 | 2002-01-17 | Hilti Ag | Gear housing of a hand tool device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1532029A (en) | 2004-09-29 |
| GB2399530A (en) | 2004-09-22 |
| DE10313782A1 (en) | 2004-10-07 |
| GB2399530B (en) | 2006-01-25 |
| GB0405780D0 (en) | 2004-04-21 |
| DE10313782B4 (en) | 2008-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090311 |
|
| CX01 | Expiry of patent term |