CN1727127A - Electric tools - Google Patents
Electric tools Download PDFInfo
- Publication number
- CN1727127A CN1727127A CNA2005100875964A CN200510087596A CN1727127A CN 1727127 A CN1727127 A CN 1727127A CN A2005100875964 A CNA2005100875964 A CN A2005100875964A CN 200510087596 A CN200510087596 A CN 200510087596A CN 1727127 A CN1727127 A CN 1727127A
- Authority
- CN
- China
- Prior art keywords
- electric tools
- motor
- case lid
- fulcrum post
- bridge
- 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
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 230000002787 reinforcement Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000003313 weakening effect Effects 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)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention relates to electric tools, especially have a motor that is arranged in the motor field frame (11), this electric tools is useful on the reception bridge (15) of this motor of supporting.The present invention proposes: in order to receive the supporting of bridge (15), be configured with between motor field frame (11) and a case lid (12) that covers this motor field frame to small part and support coupling part (20,21).
Description
Technical field
The present invention relates to a kind of electric tools, especially have a reception bridge that is arranged on the motor in the motor field frame and is used to support this motor.
Background technology
The manual electric tools that has a motor in a ladle bowl or can cover structure has been known.At least by two bearing positions, promptly the bearing position of a transmission device side and a commutator side is realized in the supporting of armature.The bearing position of transmission device side is made of a spacer flanger dish or transmission device ring flange usually and preferably is configured to rigid bearing.Being bearing in the motor field frame of commutator side realizes that by a reception bridge this receives bridge and is connected with housing bottom with rib and contact pin.This is essential for the reason of stability, because the motor field frame of electric insulation is made of plastics usually.Simultaneously, housing bottom as supporting or receive the reversing unit of motor and possible other element as removing to disturb parts and analog.If used a kind of rotating brush plate to be used for commutation, the bearing position that then is used for armature can not enough stably constitute.In addition, housing bottom must have the hole that is used for motor cooling air, and this will cause receiving the further weakening of the stability of bridge.These bearing positions are subjected to strong load in addition, because for the electric tools by mains supply, very high usually the reaching of the rated speed of armature for example can be 25 000min
-1If drive mechanism such as beater mechanism vibration or vibration again, then the load of bearing position also will further raise.
Summary of the invention
The present invention relates to a kind of electric tools, it has a motor that is arranged in the motor field frame, and wherein this motor has the bearing position of a transmission device side and a commutator side at least.
The present invention proposes, and for the supporting of motor, is configured with between motor field frame and a case lid that covers it at least in part and supports the coupling part.In the case, motor field frame can have one or more fulcrum posts and/or one or more supporting base, and case lid always has one or more supporting bases and/or fulcrum post therewith accordingly and forms being connected of form fit with motor field frame on the supporting coupling part.
This supporting coupling part preferably includes at least one fulcrum post and comprises that in case lid at least one is used for the receiving position of fulcrum post on the motor case side.Can accomplish the especially both stable and firm support of bearing of the commutator side of the armature of motor by this supporting coupling part.Can be delivered on this supporting coupling part by the reception bridge of motor field frame and be delivered on the case lid thus from the load of the transmission device of electric tools and motor armature.But the case lid cost is reasonably manufactured.Can embody rigidity and almost vibrationless supporting in addition.
Extend in the supporting base of case lid with a fulcrum post if receive bridge, then especially on the electric tools of common ladle bowl version or can cover structure form, can cause the favourable support of commutator side bearing position.Can not lose simultaneously stability ground in housing, be provided with a rotating reversing unit, for example a brush plate form reversing unit, remove to disturb parts and like and a sufficient cooling device.Can consider that also on the contrary, case lid has a fulcrum post, it extend in the motor field frame in other words in the supporting base there, especially stretches in the supporting base that receives bridge.
This fulcrum post axial location that receives bridge in other words of motor relatively is provided with prejudicially and/or with one heart.When off-centre was provided with, cabling and/or the available simple mode of cable outer lead frame (Kabelkamm) under the motor were installed in the housing.But convertible ground is provided with this fulcrum post with one heart, or also a fulcrum post can be set with one heart additionally.A plurality of bearing positions and corresponding a plurality of fulcrum post can be set equally.
Advantageously, supporting base and/or fulcrum post are configured to taper.This allow each several part each other accurately, simple and convenient install ground fixed automatically in.This electric tools can advantageously be assembled with simple and known installation procedure.
If case lid has the reinforcement structure of a rib shape, then can receive the power of user and motor supporting.This toolroom machine can be dominated by hand well in addition.
Advantageously, fulcrum post is configured to rigidity.But fulcrum post also can be configured to spring-like flexible, for example constitute as spring-like flexible element.This also is fit to be used for compensating manufacturing tolerance.
In a kind of favourable configuration of the case lid of shell structurre, the supporting coupling part can be configured to gapless.Bearing block can be clamped when these shells are screwed.
Description of drawings
Can obtain of the present invention other form of implementation, scheme and advantage by accompanying drawing to the description of the embodiment of the invention by following, they had not both relied on the conclusion in claims, and were unrestricted to generality of the present invention yet.
Accompanying drawing is represented:
Fig. 1: the partial view of an electric tools that has motor field frame and case lid of opening at the handgrip place, wherein motor field frame has the bridge of reception and fulcrum post;
Fig. 2 a: side view of electric tools; And
Fig. 3: interior views with case lid of supporting base.
The specific embodiment
Fig. 1 to 3 represents a preferred electric tools 10, it has a motor (not shown) that is arranged in the motor field frame 11, be provided with in the end of its commutator side 15, one on a reception bridge for example with this motor case lid 12 overlap joint, that in each view, separate with motor field frame 11.Receiving its free end of bridge 15 usefulness extend into the case lid 12 from motor field frame 11.In this free-ended zone, can see a rotating brush dish 16 and air grid 18 (Fig. 1).
For motor and receive the supporting of bridge 15, between motor field frame 11 and a case lid 12 that covers this motor at least in part, be configured with and support coupling part 20,21, wherein case lid 12 is lifted from motor field frame 11 in the accompanying drawings.Motor field frame 11 and case lid 12 constitute the back housing portion of electric tools 10 together.
In case lid 12, on the sidewall of its termination side, be provided with the breach 22 of both sides, allow air to enter in their states after assembling or discharge and obtain a free structure space that is used for brush plate 16 by motor field frame 11.
Be provided with a fulcrum post 20 prejudicially on reception bridge (Aufnahmbr ü cke) 15, it axially stretches out from receiving bridge 15.This fulcrum post 20 forms with a supporting base that is associated 21 (Fig. 2) and cooperates, and this supporting base is set at the inboard of case lid 12.Supporting base 21 is configured to taper and allows the automatic centering of fulcrum post 20 when electric tools 10 assemblings.
In order to assemble, case lid 12 is shifted onto on the motor field frame 11, wherein fulcrum post 20 is inserted in the supporting base 21.Then, by a screw hole that passes case lid 12 23 import in the hole 24 of motor field frames 11 screw and in handgrip part 13,14 other possible screw case lid 12 is screwed.
The reference number table
10 toolroom machines
11 motor field frames
12 case lid
Half shell of 13 handgrips part
Half shell of 14 handgrips part
15 motor
16 brush plates
17 motor reels
18 air grids
19 cavitys
20 fulcrum posts
21 supporting bases
22 breach
23 holes
24 screw threads
25 strengthen structure
Claims (10)
1. electric tools, especially has a reception bridge (15) that is arranged on the motor in the motor field frame (11) and is used to support this motor, it is characterized in that: in order to receive the supporting of bridge (15), cover at least in part motor field frame (11) and one between its case lid (12) and be configured with supporting coupling part (20,21).
2. according to the electric tools of claim 1, it is characterized in that: this motor field frame (11) has at least one supporting base and/or at least one fulcrum post (20), can produce being connected of form fit with at least one fulcrum post and/or at least one supporting base (21) that is located in the case lid (12) by it.
3. according to the electric tools of claim 1 or 2, it is characterized in that: this reception bridge (15) extend in the supporting base (21) of case lid (12) with a fulcrum post (20).
4. according to one electric tools in the above claim, it is characterized in that: described supporting base (21) is configured to taper.
5. according to one electric tools in the above claim, it is characterized in that: motor or that receive bridge (15) the relatively axial location of described fulcrum post (20) is provided with prejudicially.
6. according to one electric tools in the above claim, it is characterized in that: described fulcrum post (20) is set on the free end that receives bridge (15).
7. according to one electric tools in the above claim, it is characterized in that: described case lid (12) has the reinforcement structure (25) of a rib shape.
8. according to one electric tools in the above claim, it is characterized in that: described fulcrum post (20) is configured to rigidity.
9. according to one electric tools in the above claim, it is characterized in that: described fulcrum post (20) is configured to spring-like flexible.
10. according to one electric tools in the above claim, it is characterized in that: in the configuration of a kind of shell structurre of case lid (12), the supporting coupling part is configured to gapless.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004036584.9A DE102004036584B4 (en) | 2004-07-28 | 2004-07-28 | Power tool |
| DE102004036584.9 | 2004-07-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1727127A true CN1727127A (en) | 2006-02-01 |
| CN1727127B CN1727127B (en) | 2010-06-16 |
Family
ID=34976603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100875964A Active CN1727127B (en) | 2004-07-28 | 2005-07-28 | Electric machine tool |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1727127B (en) |
| DE (1) | DE102004036584B4 (en) |
| GB (1) | GB2417456B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3620262A1 (en) * | 2018-09-10 | 2020-03-11 | Hilti Aktiengesellschaft | Hand-held abrasive cut-off machine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2430527A (en) | 1944-09-13 | 1947-11-11 | Independent Pneumatic Tool Co | Plastic handle securing means for drills |
| US2711461A (en) | 1953-12-24 | 1955-06-21 | Singer Mfg Co | Portable electric tool handle assemblies |
| US3494799A (en) | 1968-10-01 | 1970-02-10 | Black & Decker Mfg Co | Battery access handle for cordless electric device |
| EP1157791B1 (en) * | 1995-07-28 | 2007-01-17 | Black & Decker Inc. | Production assembly tool |
| JPH09141573A (en) * | 1995-11-20 | 1997-06-03 | Sanyo Electric Co Ltd | Small electric appliance housing motor |
| GB2323717B (en) * | 1997-02-27 | 1999-06-02 | Bosch Gmbh Robert | A hand tool machine |
| US6445097B1 (en) | 1999-12-01 | 2002-09-03 | Milwaukee Electric Tool Corporation | Method for assembling and electrical connector assembly for a power tool |
| GB2397857B (en) * | 2003-01-31 | 2005-11-23 | Black & Decker Inc | Tool |
| US7077218B2 (en) * | 2004-05-20 | 2006-07-18 | Black & Decker Inc. | Motor housing and assembly process for power tool |
-
2004
- 2004-07-28 DE DE102004036584.9A patent/DE102004036584B4/en not_active Expired - Lifetime
-
2005
- 2005-07-26 GB GB0515318A patent/GB2417456B/en active Active
- 2005-07-28 CN CN2005100875964A patent/CN1727127B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN1727127B (en) | 2010-06-16 |
| GB2417456A (en) | 2006-03-01 |
| DE102004036584A1 (en) | 2006-03-23 |
| GB2417456B (en) | 2009-02-25 |
| GB0515318D0 (en) | 2005-08-31 |
| DE102004036584B4 (en) | 2019-08-01 |
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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 |