CN101579852A - Protective cap, and electric tool with such a protective cap - Google Patents
Protective cap, and electric tool with such a protective cap Download PDFInfo
- Publication number
- CN101579852A CN101579852A CN200910138634.2A CN200910138634A CN101579852A CN 101579852 A CN101579852 A CN 101579852A CN 200910138634 A CN200910138634 A CN 200910138634A CN 101579852 A CN101579852 A CN 101579852A
- Authority
- CN
- China
- Prior art keywords
- protective cover
- backstop
- electric tool
- wall portion
- counter element
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/04—Protective covers for the grinding wheel
- B24B55/05—Protective covers for the grinding wheel specially designed for portable grinding machines
- B24B55/052—Protective covers for the grinding wheel specially designed for portable grinding machines with rotating tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
- B24B23/028—Angle tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Sawing (AREA)
Abstract
The present invention relates to a protective cowl, which can be fixed on an electric tool, especially an angle grinder in manner of being capable of swinging around a drive shaft (12) of the electric tool (10) to different positions in defined angle range. The protective cowl comprises: a body having a sector wall part (51); a plurality of holding elements (57) arranged on the wall part (51) along partial arc homocentric with the sector section, the holding elements being capable of jointing with corresponding elements (18) relative to the electric tool (10) to hold the protective cowl at selected operation position; in order to limit the swing movement along the circle direction in at least one of end zones of partial arc, at least a block (59) extending in axial direction is provided, which may move towards the corresponding elements (18), and the block (59) has a leg (61) extending to the partial arc section so as to form a bag shaped part (62), such that the corresponding elements (18) can be moved into the bag shaped part (62).
Description
Technical field
The present invention relates to a kind ofly be used for electric tool and the particularly protective cover of angle grinding machine, and a kind of electric tool with this protective cover.
Background technology
By the known a kind of angle of DE 44 23 889 C1 grinding machine, on this angle grinding machine, can fix a protective cover with pulling down.After fixing, described protective cover can the drive shaft around electric tool swing in the different run locations in the angular range of a qualification, and instrument (being abrasive disk here) just is fixed on the described drive shaft.For described protective cover is remained in the desired angular position, in the fan-shaped wall portion that an end shield that is parallel to electric tool extends,, be provided with a plurality of along the equally distributed depression of described partial arc along a partial arc coaxial with drive shaft.Be fixed with the retaining ring that the sheet material by spring (spring steel) is made on this external described end shield, described retaining ring has a clamping projection that is overlapped in the described fan-shaped wall portion.This clamping projection has towards described end shield, promptly towards the projection of described fan-shaped wall portion, this projection is engaged, so that protective cover can be remained in the corresponding run location with respective recesses in the wall portion.
In addition, also form two backstop projections that stretch out along the direction of end shield on described retaining ring, described backstop projection is used for protective cover is rotated restriction.That is to say that at final position place, the distolateral touching of the qualification circular arc of fan-shaped wall portion is on the backstop projection.
Above-mentioned DE 44 23 889 C1 have constituted the basis of the preamble of claim 7.In addition by the known a kind of protective cover of DE199 14 855 A1 with described feature of preamble of claim 1.
At last, DE 103 48 395 A1 disclose a kind of electric tool, particularly protective cover of angle grinding machine of being used for, and it has a fan-shaped wall portion, and a backstop projection that is made of the sheet material of spring bending from described wall portion is come out.
This electric tool must be by burst test or the burst test according to IEC-EN60745-2-3.Requirement this moment if abrasive disk destroys in burst test, does not then allow protective cover to rotate more than 90 ° from the application's position shown in Figure 1.This requirement can't be satisfied by the backstop projection on the retaining ring (plate by spring forms).But when the distolateral arrival backstop projection of fan-shaped wall portion, described retaining ring and/or backstop projection tend to such bending, that is, protective cover may from the backstop projection through and continue rotation.
Summary of the invention
Therefore the objective of the invention is; a kind of protective cover and a kind of electric tool with this protective cover that is used for electric tool is provided, described protective cover keep simple in structure and protective cover can be fixed on the electric tool in the simplest mode and situation about pulling down again under-as by as described in prior art known-can be by the burst test of IEC-EN60745-2-3.
The protective cover of the feature of described purpose by having claim 1 and realize according to the electric tool with this protective cover of claim 6 or by a kind of electric tool that optionally has protective cover according to claim 7.The favourable improvement project of the present invention draws in each dependent claims.
Of the present invention based on such design, promptly, under the backstop state, avoid " crossing " backstop like this, promptly, distance on the element of preferred expansion arrival backstop top and the freedom of backstop between the seamed edge, and forming one bag of shape portion, this bag shape portion can prevent to arrive element on the backstop and cross seamed edge on the freedom of backstop and continue to move.Here on the principle preferably; described backstop is formed on the protective cover; described protective cover is compared with the flexible retaining ring of DE 44 23889 C1 by the material of rigidity more and is formed; requirement can be more easily satisfied thus, higher manufacturing cost and/or complicated structure can't be caused according to the burst test of IEC-EN60745-2-3.
Therefore; protective cover of the present invention can be fixed on an electric tool, particularly the angle grinding machine like this; that is, this protective cover can the drive shaft around electric tool swing to different run locations in the angular range that limits, and this protective cover comprises that one has the body of fan-shaped wall portion.Here preferably, described fan-shaped wall portion is semicircular, and has a same semicircular recess at the circle centre position of this semicircle basically, and under the state that is installed on the electric tool, the drive shaft of electric tool is passed described recess at least in part.Body described here can preferably have the shape of half basin.That is to say, can be provided with an axially outstanding forward edge on the outside circumferential lateral surface along drive shaft radially being positioned at of fan-shaped wall portion.This edge can additionally radially curve inwardly in the side of its fan-shaped dorsad wall portion.In addition, in the zone of fan-shaped wall portion, one or more bends can be set
, that is to say that described fan-shaped wall portion necessarily extends straight.In addition, preferably, be provided with at least one but preferred a plurality of axially outstanding projection along a part of circular arc with one heart with described semi-circular indentation, described projection is along the same outstanding with opposite direction with axially extended wall portion.Described projection for example can produce by punching press, and in order radially to guide protective cover to join in the cannelure that is arranged in electric tool, particularly its end shield.Described cannelure preferably opens wide along the whole length which is provided with the described partial arc of described or each described projection, thereby can be fixed on the electric tool in simple mode according to protective cover of the present invention, and tool using (seeing below) for this reason.According to the present invention; be provided with a plurality of holding elements with one heart with one heart or with the recess that holds described drive shaft with drive shaft with one heart and thus at fan-shaped wall portion described partial arc in upper edge and arc section; described holding element can engage with a corresponding counter element static with respect to the electric tool maintenance, so that protective cover is remained in the operation or angle position hope or that select.Described holding element preferably by uniformly at interval, preferably with 30 ° spacing along described partial arc setting.Preferably be provided with 4 to 6, in most cases preferably be provided with 5 such holding elements.According to a form of implementation of the present invention; described protective cover has an axially extended at least backstop; be used to be limited at least one, particularly described partial arc is in operation and is positioned at the oscillating motion of the end regions of back on the direction of rotation of drive shaft; described backstop preferably forms with protective cover, perhaps forms or is molded on the described protective cover.Described counter element can move to described end stop, limited protective cover being further rotated along the direction of rotation of drive shaft in this state.According to the present invention, described backstop is provided with the supporting leg that one day, described partial arc extended, and forming one bag of shape portion, thereby described backstop has L shaped shape substantially in the cross section.Advantageously the lengthening part along partial arc is provided with a microscler recess, and this recess ends at or passes on the backstop, and wherein, if holding element is formed by described recess, then described recess can be the extension of holding element.But described recess also can be provided with separately.By described backstop design pouch portion can be avoided, be resisted against on the backstop and the counter element bending vertically that moves into thus in the bag shape portion is left described fan-shaped wall portion and crossed backstop, promptly cross the end of the fan-shaped dorsad vertically wall portion of backstop.Now, if counter element bends, counter element described the crossing that prevent further bending and take place thus by the supporting leg that is parallel to described fan-shaped wall portion and extends then.Additionally, the microscler recess or the depression of leading in the described backstop can realize, that preferably on the direction of fan-shaped wallboard, load and press to its counter element can be in recess " vibration " or elastic deflection, and thus under the situation that does not enlarge backstop size vertically, counter element and the described distance that goes up between the seamed edge (end of the fan-shaped dorsad wall of backstop portion) are enlarged, thus, further reduced or even got rid of the possibility that counter element is crossed described backstop.Can prevent that in the most reliable mode protective cover overstep of end point border is further rotated individually or in combination with one another by each described design, thus can be according to protective cover of the present invention and the electric tool that is equipped with this protective cover by the burst test of IEC-EN60745-2-3.
As mentioned above, here particularly preferably be, each described holding element forms by a recess respectively, special form by the impression portion in the fan-shaped wall portion, thereby form a recess on the side of end shield dorsad in fan-shaped wall portion, and form projection in relative side where necessary, wherein in this case preferably, the recess that is provided with recently from backstop extends on the backstop always, so that form microscler recess or depression.In this case preferably, counter element has a projection towards fan-shaped wall portion, and described projection is designed to corresponding with described depression or recess, engages and is disengaged so that reach with described depression or recess by the swing of protective cover.
In addition may be preferably; in the relative end regions of the end regions with being provided with described backstop of partial arc, be provided with another backstop; but during along the rotation of the direction of rotation of drive shaft, this backstop can be moved by counter element and cross, to realize the simple installation of protective cover at protective cover.That is to say, (explanation of seeing below) when mounted, counter element can move crosses this backstop, and after mobile crossing, this backstop has constituted the restriction to the swing property of protective cover.In order to dismantle, described counter element preferably can utilize a simple tools (for example screwdriver) to lift slightly, thereby protective cover is swung on counter element or described other backstop through also pulling down from electric tool again.
In of the present invention one optional second embodiment; backstop preferably is not set in the end regions of partial arc; but be arranged at least one backstop on the electric tool still; wherein at protective cover when the direction of rotation of drive shaft is rotated; described backstop touches on fan-shaped wall portion section distolateral of protective cover; and, thereby can realize and the situation confers similar advantages that starts at the bag shape backstop explanation of protective cover for shape pouch portion has the supporting leg of the distolateral extension of this wall portion on one day.
Description of drawings
The present invention other advantage and feature can be individually or with above-mentioned feature in one or more in combination by seeing in the following explanation to a preferred embodiment of the present invention.Under situation with reference to the accompanying drawings, describe, wherein:
Fig. 1 illustrates the part of angle grinding machine with perspective view, and it has according to protective cover of the present invention and abrasive disk is not installed;
Fig. 2 illustrates the decomposition view of the angle grinding machine of Fig. 1.
The specific embodiment
At the angle grinding machine shown in Fig. 1 and 2 is an example can using electric tool of the present invention, and the angle grinding machine comprises a housing 11, and the drive unit that can not see in each accompanying drawing is installed in this housing.One drive shaft 12 is rotated (being counterclockwise) here by described drive unit, can fix an abrasive disk (not shown) on described drive shaft.The axis M of drive shaft 12 shown in Figure 1.Described drive shaft 12 is bearing in the housing 11.The part that supports described drive shaft is covered by an end shield that links to each other with housing 11 13.Form a cannelure 14 in end shield 13, described cannelure opens wide on about 160 a ° angular regions in positive zone 15.
In addition, connecting 17 by bolt is fixed on a retaining ring 16 that is formed by elastomeric material, particularly latch plate in the end cap 13.Described retaining ring 16 have one vertically towards the reclinate slightly projection of end shield 13 18 as counter element.This projection 18 is provided with an impression portion 19, thereby forms the projection that can not see in the drawings at projection 18 on the side of end shield 13.This projection 18 is promptly aimed at away from head on orientation along the direction of the drive unit (motor) of electric tool 10.
Protective cover according to the present invention is the design all-in-one-piece, and has the shape of half basin basically, thereby can go out two corresponding protection covers 50 by stamping-out from the basin shape sheet material (brechtopf) of a circle.Protective cover 50 has fan-shaped wall portion 51, and this wall portion is semicircular in described form of implementation, that is to say to cover one 180 ° angular regions.This fan-shaped wall portion 51 radially is parallel to end shield 13 extensions basically and radially has a bend 52, thereby forms an in axial direction darker part 53 and a higher part 54.Around semicircle, be the recess that the center of circle of arc section is provided with a circle (semicircle), drive shaft 12 is partly passed described recess under installment state, and the axis M of drive shaft and the axis of recess 55 and fan-shaped section overlap basically, that is to say that these elements are provided with mutually with one heart.Radially the most close recess 55 and equally one with the concentric partial arc of axis M on, the part 53 of wall portion 51, process a plurality of impression portion 56 from the side of end shield 13 dorsad, thus in a plurality of projections of formation on the side of end shield.Here the radius of partial arc which is provided with impression portion 56 is corresponding to the radius of cannelure 14, thereby under installment state, the projection that produces by impression portion 56 can join in the cannelure 14, protective cover is carried out radial directed (seeing below).Shown in form of implementation in, be provided with the impression portion 56 of six this forms, form an induction element for wherein per three.In addition, in described darker part 53, with the first circular arc with one heart and with respect to its radially outer be provided with a plurality of recesses 57 and form the impression portion of holding element.Shown in the form of implementation, be provided with five this recesses 57, wherein four are designed to identical.Described recess along described partial arc by 30 ° proportional spacing setting, thereby protective cover can and be maintained in these positions by 30 ° spacing swing, in other words by force closure ground " locking " basically in these positions.In the first end zone of partial arc, recess 57 prolongs, so that form a microscler recess 58.This microscler recess 58 stops at backstop 59 places.Described backstop is parallel to wall portion 51 by an axial supporting leg 60 and one or is parallel to end shield and/or supporting leg 61 that projection 18 extends is formed, and forms one bag of shape portion 62 thus.At cutaway view or one radially in the vertical view, this backstop 59 is designed to the shape (in Fig. 2 for inverted) of " L ".
In relative end regions, be provided with another backstop 63, this backstop by the U-shaped cross section in the part 53 of wall portion 51 and material vertically bend formation.
Another wall portion or flange 64 extend in the axial direction along the periphery of wall portion 51, and this flange curves inwardly on its axial end, so that form the termination portion 65 that avoids sharp-pointed seamed edge in the axial direction.
The following describes the installation and removal of described protective cover 50 on electric tool 10, and operation principle of the present invention is described.
For described protective cover 50 is installed, distolateral 66 directions along the front of electric tool with wall portion 51 that is to say the direction along motor, and described protective cover is installed in Fig. 2 forward.As mentioned above, the cannelure 14 that is arranged in the end shield 13 opens wide in the subregion in this zone at least, is provided with the projection that formed by impression portion 56 in this subregion, is induction element.Thus, can settle described projection to limit in the wall portion 20 of guiding groove 14 in inside until arriving radially.Here, wall portion 51 is imported between retaining ring 16 and the end shield 13.In order to realize this point, the distance of retaining ring 16 between the upside 21 of the side of end shield 13 and end shield 13 designed like this, that is, this distance is equivalent to the thickness of the wall portion 51 of protective cover 50 at least.In view of the above, be in operation, protective cover 50 can be counterclockwise, promptly rotate along the direction of rotation of drive shaft 12, enters in the cannelure 14 thereby advanced by the projection that impression portion 56 produces, and radially guide protective cover 50.
When protective cover 50 continued rotation in the counterclockwise direction, the side that backstop 63 links to each other with the part 53 of wall portion 51 engaged with projection 18.Therefore, Flexible Design by projection 18 or whole retaining ring 16 and backstop 63 from the inclined design of the connecting portion of wall portion 51, projection 18 is slided cross backstop 63.After this, projection 18 is arranged between backstop 63 and the backstop 59.By reclinate slightly elastic projection 18 or with the retaining ring 16 of wall portion 51 overlap joint, protective cover 50 remains on end shield 13 or the electric tool 10 in the axial direction.In this state, protective cover 50 can be swung between backstop 63 and 59, and can swing in each the single run location by recess 57 regulations.Five this run locations have been stipulated at this.In order to dismantle described protective cover 50, be reversed said process.When projection 18 and backstop 63 in case before contact or contacting, can that is to say by means of a simple tools and lift projection 18 slightly by means of a screwdriver, thereby it can slide and crosses backstop 63.After this, make protective cover move to position, and can take off protective cover by the front of opening wide 15 of cannelure 14 at this moment, and will pull out its intermediate space between retaining ring 16 and end shield 13 with respect to Fig. 2 Rotate 180 °.
Under the situation that the tool wheel that does not illustrate (abrasive disk) breaks; this situation also can be simulated by the burst test according to IEC-EN60745-2-3; there is such danger; be that protective cover 50 is mobile along being carried by the direction of rotation of drive shaft 12 by the instrument of explosion, described direction of rotation is by arrow 67 expressions that extrude on protective cover and be counterclockwise extension.For can be by the burst test of stipulating among the IEC-EN60745-2-3, claimed covering in this case can be no more than 90 ° from position rotation shown in Figure 2.
If it is mobile that protective cover 50 is carried by instrument along the direction of arrow 67, then the projection that in projection 18, produces by impression portion 19 at first move into last recess 57 (along direction of rotation 67 last or rearmost).That is to say that projection 18 is along the direction strain (being downward) of end shield 13, and the lower or more close end shield of the situation ground setting of sliding on the surface of the part 53 of wall portion 51 than it on its position thus here.From here, projection 18 is stayed slipping in the position of this " lower ", and along with the projection that forms by impression portion 19 continues to move in the recess 58 (this recess is designed to microscler along the partial arc that extends with one heart), and advance in bag shape portion 62, described bag of shape portion is made up of axially extended supporting leg 60 and the supporting leg 61 that is parallel to 51 extensions of wall portion.At last, projection 18 axial supporting leg 60 of the seamed edge shown in the right side and backstop 59 in Fig. 2 comes in contact.From here on, can prevent that protective cover 50 is rotated further.
Can enlarge backstop 59 in axial direction away from the seamed edge of end shield 13 and the distance between the projection 18 by microscler recess 58 and the projection 18 that is in lower position thus, and avoid crossing backstop 59 thus.Even work as lug 18 bending of this degree having taken place, but still can prevent further bending by supporting leg 61, thereby even has also avoided crossing described backstop 59 in this case.Making thus can be by the burst test according to IEC-EN60745-2-3 according to protective cover of the present invention.
Be appreciated that the present invention is not limited in form of implementation described above, but can carry out different changes.For example; backstop 63,59 can be set on protective cover 50; but corresponding backstop projection is set on the downside of retaining ring 16 as in DE 44 23 889, described backstop projection can correspondingly be positioned at distolateral 66 of drive shaft 12 left sides and right side with wall portion 51 and contact.Therefore, one optional but in the unshowned form of implementation, it is also contemplated that the backstop projection that substitutes description among the DE 44 23 889 with aforesaid bag backstop shape, that have supporting leg 60,61.Although be preferred, described protective cover neither be designed to semicircular, but can have other Angular Dimension.The quantity that forms projection and depression 57 by impression portion 56 also is not limited only to situation recited above, but can be provided with more or lessly.In addition, described element is not to realize by impression portion, but can form in other mode.Also it is contemplated that at last, projection is set substitutes recess 57, at this moment, in this case, can be provided with one and cave in accordingly, substitute the projection that forms by impression portion 19.In addition, it is also conceivable that and to carry out radial directed in other mode to protective cover 50, although shown form of implementation is preferred from the reason of manufacturing technology and cost.
Claims (8)
1. protective cover; this protective cover can be fixed on an electric tool, particularly the angle grinding machine (10) like this; that is, this protective cover can the drive shaft (12) around electric tool (10) swing in the different run locations in an angular range that limits, and this protective cover comprises:
One has the body of fan-shaped wall portion (51);
A plurality ofly be arranged on holding element (57) in the wall portion (51) with fan-shaped concentric partial arc along one, described holding element can engage with the corresponding counter element (18) of electric tool (10), so that protective cover (50) is remained in the selected run location; And
In order along the circumferential direction described oscillating motion to be limited in in the end regions of partial arc at least one, has a backstop (59) of extending at least vertically, this backstop can move towards described counter element (18), it is characterized in that, described backstop (59) has the supporting leg (61) that one day, described partial arc extended, so that form one bag of shape portion (62), thereby described counter element (18) can move in the described bag shape portion (62).
2. protective cover according to claim 1 is characterized in that, is provided with a microscler recess (58) along the lengthening part of described partial arc, and this recess is gone up in backstop (59) and stopped.
3. protective cover according to claim 1 and 2; it is characterized in that; holding element (57) forms by a recess respectively; one projection towards wall portion (51) (19) of in axial direction flexible static counter element (18) can engage with described recess, and described counter element overlaps with wall portion (51) at least in part.
4. each described protective cover in requiring according to aforesaid right; it is characterized in that; protective cover (50) can be installed on the electric tool (10) like this, that is, backstop (59) is arranged on the rearward end zone of the direction of rotation along drive shaft (12) (67) of partial arc.
5. each described protective cover in requiring according to aforesaid right; it is characterized in that; be formed with another backstop (63) on the end regions relative with described backstop (59) of partial arc, the counter element (18) of electric tool (10) can move along the direction of backstop (59) and cross this backstop (63).
6. electric tool; have working-spindle (12) and require according to aforesaid right in each described protective cover (50); described working-spindle is used to admit an instrument; a dish type instrument particularly; described protective cover and working-spindle (12) radially are directed with one heart; this protective cover is used for surrounding at least in part described instrument with shielding; comprise a counter element (18) static in addition with respect to electric tool (10); radially such and wall portion (51) overlap joint of this counter element (18); promptly; swing by protective cover (50) can make it engage with holding element (57) selectively, and described backstop (59) can move towards counter element (18).
7. electric tool, have working-spindle (12) and protective cover (50), described working-spindle is used to admit an instrument, particularly a dish type instrument, described protective cover and working-spindle radially are directed with one heart, be used at least in part surrounding described instrument, this protective cover comprises with shielding: one has the body with the concentric fan-shaped wall portion (51) of working-spindle; Be arranged on holding element (57) wall portion in along one with the concentric partial arc of working-spindle with a plurality of; described holding element can engage with the static counter element (18) of electric tool; so that protective cover is remained in the selected run location; wherein; it is one static with respect to electric tool (10) that described electric tool (10) has; at least axially extended end stop; one distolateral (66) of wall portion; particularly being positioned at the distolateral of front along the direction of rotation of drive shaft (12) can move towards described end stop; it is characterized in that; described backstop has the supporting leg of the described distolateral extension of wall portion on one day; so that form one bag of shape portion, thereby described distolateral (66) of wall portion can move in the described bag of shape portion.
8. according to claim 6 or 7 described electric tools, it is characterized in that, counter element (18) is designed to radially that extend, loaded, a flexible projection, this projection has a projection (19) of extending towards the direction of wall portion vertically, and described counter element is designed for engaging with the holding element (57) that forms by a recess respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008023324.2 | 2008-05-13 | ||
| DE102008023324A DE102008023324A1 (en) | 2008-05-13 | 2008-05-13 | Protective hood for a power tool, in particular an angle grinder and power tool with such a protective hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101579852A true CN101579852A (en) | 2009-11-18 |
| CN101579852B CN101579852B (en) | 2013-06-12 |
Family
ID=40941782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910138634.2A Expired - Fee Related CN101579852B (en) | 2008-05-13 | 2009-05-12 | Protective cap, and electric tool with such a protective cap |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2119534B1 (en) |
| CN (1) | CN101579852B (en) |
| AT (1) | ATE471789T1 (en) |
| DE (2) | DE102008023324A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756362A (en) * | 2011-04-29 | 2012-10-31 | 日立工机株式会社 | Portable working machine |
| CN111791129A (en) * | 2019-04-03 | 2020-10-20 | 南京德朔实业有限公司 | Multifunctional electric tool |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441871B (en) * | 2010-10-01 | 2014-06-04 | 苏州宝时得电动工具有限公司 | Accessory and power tool |
| JP5579575B2 (en) * | 2010-11-02 | 2014-08-27 | 株式会社マキタ | Disc grinder |
| KR102414014B1 (en) * | 2018-01-11 | 2022-06-27 | 윤옥 | Cutting wheel disassembling and assembling device |
| EP3546124A1 (en) | 2018-03-29 | 2019-10-02 | HILTI Aktiengesellschaft | Angle grinder |
| CN110524042A (en) * | 2018-05-25 | 2019-12-03 | 南京德朔实业有限公司 | Angle grinder |
| JP2020006483A (en) * | 2018-07-09 | 2020-01-16 | 株式会社マキタ | Electric power tool |
| WO2023010528A1 (en) * | 2021-08-06 | 2023-02-09 | Black & Decker Inc. | Circular saw with a shroud |
| CN114683145B (en) * | 2022-05-10 | 2023-05-12 | 浙江金智达机电有限公司 | Angle grinder |
| CN114683146B (en) * | 2022-05-10 | 2023-04-04 | 广东英基精密科技有限公司 | From dust absorption angle mill |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4423889C1 (en) | 1994-07-07 | 1995-06-22 | Atlas Copco Elektrowerkzeuge | Protective hood for hand tool machine, esp. angle grinder |
| SE507264C2 (en) * | 1996-06-13 | 1998-05-04 | Atlas Copco Tools Ab | Handheld power tool |
| DE19914855B4 (en) | 1999-04-01 | 2004-04-22 | Metabowerke Gmbh | Hand grinder with a protective hood that can be adjusted in the circumferential direction |
| DE10115635C1 (en) * | 2001-03-23 | 2002-10-24 | Flex Elektrowerkzeuge Gmbh | Protective hood for grinding wheel set at right-angles to axis of hand tool is shaped as semicircle and covers arc of circle under motor and has ratchet system to help hold it in place |
| DE10225051A1 (en) * | 2002-06-06 | 2004-01-08 | Robert Bosch Gmbh | Insert tool with a fastening unit |
| DE10348395A1 (en) | 2003-10-17 | 2005-05-19 | Robert Bosch Gmbh | Protective cover for a power tool, power tool and system with protective hood and power tool |
| US20070117499A1 (en) * | 2005-11-23 | 2007-05-24 | Sunmatch Industrial Co., Ltd. | Rotary protecting hood of a pneumatic grinder |
-
2008
- 2008-05-13 DE DE102008023324A patent/DE102008023324A1/en not_active Withdrawn
-
2009
- 2009-04-27 AT AT09158811T patent/ATE471789T1/en active
- 2009-04-27 EP EP09158811A patent/EP2119534B1/en active Active
- 2009-04-27 DE DE502009000034T patent/DE502009000034D1/en active Active
- 2009-05-12 CN CN200910138634.2A patent/CN101579852B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756362A (en) * | 2011-04-29 | 2012-10-31 | 日立工机株式会社 | Portable working machine |
| CN102756362B (en) * | 2011-04-29 | 2016-08-03 | 日立工机株式会社 | Portable processing machine |
| CN111791129A (en) * | 2019-04-03 | 2020-10-20 | 南京德朔实业有限公司 | Multifunctional electric tool |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502009000034D1 (en) | 2010-08-05 |
| EP2119534A1 (en) | 2009-11-18 |
| ATE471789T1 (en) | 2010-07-15 |
| DE102008023324A1 (en) | 2009-11-19 |
| CN101579852B (en) | 2013-06-12 |
| EP2119534B1 (en) | 2010-06-23 |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20200512 |