CN101896318B - Electric tool - Google Patents
Electric tool Download PDFInfo
- Publication number
- CN101896318B CN101896318B CN200880120330.7A CN200880120330A CN101896318B CN 101896318 B CN101896318 B CN 101896318B CN 200880120330 A CN200880120330 A CN 200880120330A CN 101896318 B CN101896318 B CN 101896318B
- Authority
- CN
- China
- Prior art keywords
- brush carrier
- tool housing
- long axis
- axis direction
- brush
- 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 - Fee Related
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
- H02K5/148—Slidably supported brushes
Abstract
A tool housing (103) has a brush holder receiving space (141) in an intermediate region in the longitudinal direction of the tool housing (103). A motor (121) has a brush holder (131) inserted and mounted in the brush holder receiving space (141) from a direction intersecting the longitudinal direction of the tool housing (103). The brush holder (131) has a tube section (132) for receiving a brush (133) and is integrally provided with a pressing receiving portion (139) adjacent to the tube section (132). A cover (109) is attached to the outer surface of one end of the tool housing (103) so as to cover the tool housing (103) along the longitudinal direction of the tool housing (103). The cover (109) has in its inner space a ridge (145) extending in the longitudinal direction, and the ridge (145) abuts against the pressing receiving portion (139) of the brush holder (131), inserted in the brush holder receiving space (141), to press the brush holder (131) in the inserting direction.
Description
Technical field
The present invention relates to possess the electric tool of the motor that front end tool is driven, specifically relate to the technique for fixing of brush carrier.
Background technology
The technique for fixing of brush carrier in electric tool disclosed in Japan opens flat 7-27274 communique (patent documentation 1) in fact.The brush carrier fixture construction that above-mentioned communique is put down in writing, insert between the opposed stiffener that the rearward end of the long axis direction from long axis direction to the motor shell that consists of tool body forms brush carrier is set, afterwards, cover when being assembled to the rearward end of motor shell when covering from long axis direction, the pin that utilization is arranged at this cover pushes brush carrier from long axis direction, thus this brush carrier is fixed.In addition, for a brush carrier among a plurality of brush carriers, utilize the rib that is arranged at cover towards commutator side extruding brush carrier, this brush carrier to be fixed.
Above-mentioned brush carrier fixture construction is, is opposed shape setting along the stiffener that this long axis direction extends in the rearward end of the long axis direction of motor shell, and the long axis direction of brush carrier from motor shell is inserted in the groove that forms between this stiffener and is assembled on this motor shell.Therefore, in the open structure of the end regions of motor shell, namely not exist the structure of the functional part that this brush carrier is counteracted from the assembling of motor shell long axis direction at the end regions of motor shell be effective.
But, in the situation that there is the structure of the long axis direction of brush carrier being assembled the functional part that counteracts in the end of motor shell, more lean on the zone line of side in long axis direction if want that namely brush carrier is assembled to the end that enters than motor shell, be difficult to use the assembling mode of the brush carrier that communique puts down in writing, the leeway of improvement is arranged in this.
Patent documentation 1: Japan opens flat 7-27274 communique in fact
Summary of the invention
The object of the present invention is to provide a kind of technology, in electric tool, what brush carrier can be assembled to tool housing enters into the interior side's of long axis direction zone line from end regions, and brush carrier stably can be fixed on this zone line.
In order to reach above-mentioned problem, the optimal way of the electric tool that the present invention relates to is that this electric tool has: tool housing, and it is distolateral and another distolateral disposing respectively for the functional part that front end tool is driven of long axis direction; Motor, it is contained in described tool housing, utilizes motor to drive front end tool, the processing operation of thus front end tool being stipulated.In addition, as " functional part of at one end side configuration " of the present invention, the typical case be equivalent to assemble for starting or the power switch that stops motor and the action bars that is connected this power switch (handle) be connected the switch wiring mechanism section of the switch-side terminal that is connected with motor-side terminal or brush etc., as " at the functional part of another distolateral configuration ", the typical case is equivalent to the rotation output of motor is passed to the Poewr transmission mechanism of front end tool.In addition, " electric tool " of the present invention, the typical case be equivalent to disk grinder that grinding operation, grinding operation use such with the electric tool of motor as drive source.
According to optimal way of the present invention, tool housing has the brush carrier receiving space at distolateral and another zone line of distolateral of the long axis direction of this tool housing.Motor has the direction of intersecting from the long axis direction with tool housing, namely inserts the brush carrier receiving space and the brush carrier that assembles from radial outside.Brush carrier has the cylinder section of accommodating brush, and is provided with integratedly squeezed splenium with this adjacency.In addition, tool housing has a distolateral cover of the long axis direction that is arranged on this tool housing.The hood-shaped hollow form that becomes an end opening, inner space with the tool housing long axis direction that is connected with this opening, and has the projecting strip part that the long axis direction from open side to tool housing extends in the inner space, by the long axis direction of described cover from opening along tool housing being covered an end outer surface and the zone line outer surface of this tool housing, an end outer surface of tool housing and zone line outer surface are housed in the inner space thus.And, when cover covered an end outer surface of tool housing and zone line outer surface, the projecting strip part of inner space pushed this brush carrier with the squeezed splenium butt of the brush carrier that inserts the brush carrier receiving space to direction of insertion, the direction (radially) of namely intersecting with the long axis direction of tool housing.In addition, of the present invention " with cylinder section in abutting connection with " include the mode of the lateral surface that directly is configured in a section or be configured in any of the mode of section's periphery.
According to optimal way of the present invention, owing to adopting direction that brush carrier is intersected from the long axis direction with tool housing, namely being assembled to structure on this tool housing from radially outside diameter to the internal side diameter insertion, so brush carrier can be assembled to zone line between each end of long axis direction of tool housing, namely enter the brush carrier receiving space in interior side's zone from an end of tool housing.Thus, in a distolateral for example deploy switch wiring mechanism section of the long axis direction of tool housing, in the electric tool of the structure of another distolateral configuration Poewr transmission mechanism etc., can realize reasonably that brush carrier is to the assembleability of tool housing.
And the brush carrier that is inserted into the brush carrier receiving space of tool housing possesses squeezed splenium, and this squeezed splenium is assembled to an end of tool housing from long axis direction the projecting strip part of cover pushes along direction of insertion.Brush carrier generally has and will be contained in the brush of cylinder section of this brush carrier towards the brush force application spring of commutator extruding.Therefore, the active force of force application spring is always along the direction opposite with direction of insertion, namely extract directive effect in brush carrier, but according to the present invention, owing to adopting the projecting strip part that utilizes cover to push the structure of the squeezed splenium of brush carrier towards direction of insertion, so brush carrier stably can be fixed on the brush carrier receiving space.
A mode again according to the electric tool that the present invention relates to, a side in brush carrier receiving space and brush carrier is provided with projection, be provided with recess with above-mentioned protrusions snap the opposing party, when brush carrier is inserted the brush carrier receiving space, projection engages with recess, thereby brush carrier is remained in the brush carrier receiving space.As mentioned above, towards the active force of the brush force application spring of commutator extruding brush along the direction opposite with direction of insertion, namely extract directive effect in the brush carrier of the state that is inserted into the brush carrier receiving space.According to the present invention, because the brush carrier that can will be inserted into by projection the brush carrier receiving space with engaging of recess remains on this brush carrier receiving space, so when cover is assembled into tool housing, do not need the operator with finger, brush carrier to be remained on the operation of brush carrier receiving space, can improve the assembleability of brush carrier and cover.
A mode again according to the electric tool that the present invention relates to, squeezed splenium has deformable taper guide portion, when assembling cover in the mode of long axis direction one end outer surface that covers tool housing and zone line outer surface, this guide portion guides in the mode with the projecting strip part butt of cover.According to the present invention, by the taper guide portion is set, when long axis direction one end outer surface that cover is assembled to tool housing and zone line outer surface, can make the projecting strip part of cover and squeezed splenium butt reliably on squeezed splenium.
According to the present invention, for electric tool, provide brush carrier can be assembled to tool housing enter into the interior side's of long axis direction zone line from end regions, and brush carrier stably can be fixed on the technology of this zone line.
Description of drawings
Fig. 1 means the integrally-built outside drawing of the electric disc grinder that embodiments of the present invention relate to.
Fig. 2 means the integrally-built sectional view of electric disc grinder.
Fig. 3 means the integrally-built decomposition section of electric disc grinder.
Fig. 4 is the A section enlarged drawing of Fig. 2.
Fig. 5 is the B section enlarged drawing of Fig. 3.
Fig. 6 means the stereogram of back cover.
Fig. 7 means the stereogram of the structure of brush carrier.
Fig. 8 is the stereogram that represents in the same manner the structure of brush carrier.
Fig. 9 is the side view that represents in the same manner the structure of brush carrier.
Figure 10 means the stereogram of the brush carrier resettlement section of inserting before brush carrier.
Figure 11 is the C section enlarged drawing of Figure 10.
Figure 12 means the figure that brush carrier is inserted the process of brush carrier resettlement section.
Figure 13 is that the D of Figure 12 is to view.
Figure 14 means that brush carrier inserts the figure of the state behind the brush carrier resettlement section.
Figure 15 is that the E of Figure 14 is to view.
Symbol description is as follows
101... electric disc grinder (electric tool); 103... main part (tool housing); 105... motor shell; 105a... mounting screw; 106... back casing; 107... gear-box; 109... back cover (cover); 109a... cylinder hole internal face; 111... Poewr transmission mechanism; 113... bevel pinion; 115... bevel gear wheel; 117... main shaft; 119... grinding stone (front end tool); 121... CD-ROM drive motor (motor); 123... output shaft; 124... cooling fan; 125... armature; 126... bearing; 127... stator; 128... bearing; 129... commutator; 131... brush carrier; 132... cylinder section; 133... brush; 134... disc spring; 135a, 135b... insert sheet; 137... teat; 139... tab (squeezed splenium); Brush carrier resettlement section 141... (brush carrier receiving space); 141a... opening; 142a, 142b... slit; 143... plate-like portion; 144... recess; 145... rib (projecting strip part); 147... clamping screw; 151... switch wiring mechanism section; 153... switches set; 155... action bars.
The specific embodiment
Referring to Fig. 1～Figure 15, embodiments of the present invention are elaborated.In the present embodiment, as an example of electric tool, use the grinding operation of the various machined materials such as metal, concrete, building stones or the hand electric disk grinder that grinding operation uses to describe.Fig. 1 represents the overall structure of electric disc grinder 101 with outside drawing, Fig. 2 represents the overall structure of electric disc grinder 101 with sectional view, and then Fig. 3 represents the overall structure of electric disc grinder 101 with decomposition section.In addition, Fig. 4 is the A section enlarged drawing of Fig. 2, and Fig. 5 is the B section enlarged drawing of Fig. 3, and Fig. 6 means the stereogram of back cover.
As Fig. 1～shown in Figure 3, electric disc grinder 101, the grinding stone 119 of showing greatly the main part 103 of the gabarit that forms electric disc grinder 101 and being configured in the front end area of main part 103 consists of for main body.Main part 103 consists of take motor shell 105, gear-box 107 and back cover 109 as main body.Main part 103 is corresponding with " tool housing " of the present invention, and grinding stone 119 is corresponding with " front end tool " of the present invention.In addition, for convenience's sake, about the long axis direction of main part 103, before grinding stone 119 sides are called, after its opposition side is called.
As shown in Figures 2 and 3, contain the Poewr transmission mechanism 111 that the rotation output of CD-ROM drive motor 121 is passed to grinding stone 119 in the gear-box 107 that the leading section with motor shell 105 is connected.Poewr transmission mechanism 111 take drive by CD-ROM drive motor 121 bevel pinion 113 as the driving side gear that rotate, with the consisting of as main body as the main shaft 117 of the bevel gear wheel 115 of slave end gear and rotation together with bevel gear wheel 115 of bevel pinion 113 engagements, load and unload at the leading section of main shaft 117 and be equipped with freely grinding stone 119.Grinding stone 119 is configured in one distolateral (front side) of the long axis direction (long axis direction of main part 103) of motor shell 105 in the mode of the rotation quadrature of its rotation and CD-ROM drive motor 121.
The CD-ROM drive motor 121 of present embodiment is driven by the electric power that uses mains cord to supply with from power supply (socket).CD-ROM drive motor 121 take output shaft 123, with the cooling fan 124 of output shaft 123 one rotations, with the armature 125 of output shaft 123 one rotations, be fixed in motor shell 105 stator 127, be arranged at the rear end side (opposition side of cooling fan 124) of output shaft 123 commutator 129, consist of as main body with the outer peripheral face sliding-contact of commutator 129 and two brush carriers 131 supplying with two brushes 133 of electric current and accommodate brush 133.The leading section of output shaft 123 is by bearing 126 supportings of front side, and rearward end is supported and rotates freely by the bearing 128 of rear side.Wherein, consist of rotor by output shaft 123, armature 125, commutator 129.
Two brush carriers 131 that present embodiment relates to are arranged on back casing 106.In addition, back casing 106 is formed by dielectric synthetic resin.Below mainly with reference to Fig. 7～Figure 15, structure and the installation constitution thereof of brush carrier 131 are described.The overall structure of expression brush carrier in Fig. 7～Fig. 9 represents the brush carrier resettlement section that brush carrier 131 assembles front state, the C section of Watch with magnifier diagram 10 in Figure 11 with stereogram in Figure 10.Brush carrier is inserted the process of brush carrier resettlement section in Figure 12, the state that expression is observed along the D direction of arrow of Figure 12 in Figure 13.In addition, expression is inserted state behind the brush carrier resettlement section, the state that expression is observed along the E direction of arrow of Figure 14 in Figure 15 with brush carrier in Figure 14.
As mentioned above, dispose in the structure of switches set 153 at the rear of back casing 106, be difficult to brush carrier 131 is inserted and is assembled on this back casing 106 along long axis direction from the rear of back casing 106.Therefore, in the present embodiment, the direction that brush carrier 131 intersects from the long axis direction with back casing 106 is inserted and is assembled on back casing 106.Therefore, on back casing 106 along open towards the outside brush carrier resettlement section that radially forms concavity 141.Brush carrier resettlement section 141 is corresponding with " brush carrier receiving space " of the present invention.As shown in Figure 3, brush carrier resettlement section 141 separates predetermined distance (be in the present embodiment 180 degree) in the zone relative with commutator 129 at Zhou Fangxiang and sets two for.The zone relative with commutator 129 in back casing 106 is corresponding with " zone line " of the present invention.
As shown in Figure 3, each brush carrier 131 direction of intersecting from the long axis direction with back casing 106, namely radially be inserted in brush carrier resettlement section 141 and be assembled on back casing 106.The overall structure of expression brush carrier 131 in Fig. 7～Fig. 9.Brush carrier 131 forms the regulation shape by the metallic plate of electric conductivity is processed.Form the cross section cylinder section 132 in the form of a substantially rectangular of accommodating brush 133 that is useful on brush carrier 131.Cylinder section 132 extends along the direction of insertion of brush carrier 131, as shown in Figure 4, inserts under the state of brush carrier resettlement section 141 the opening 141a that the cylinder hole forms in the face of 141 the internal face in the brush carrier resettlement section at brush carrier 131.Brush 133 is housed in a section 132 sliding freely, this brush 133 radially is by opening 141a the outer peripheral face that the approximate right angle shape is connected to commutator 129, and the disc spring 134 that is installed in brush carrier 131 is squeezed on the outer peripheral face of commutator 129 in mode that can sliding-contact.Disc spring 134 is brush force application springs, and the one end is locked by the hooking sheet 131a of brush carrier 131, and the other end is observed towards commutator 129 sides brush 133 back side application of forces from the brush carrier direction of insertion.
In addition, brush carrier 131 is at distolateral two insertion sheet 135a, the 135b that form each other opposed shape that are provided with integratedly of the direction (housing long axis direction) of intersecting with the cylinder hole direction of cylinder section 132.It is roughly inverted U-shaped from direction of insertion observation formation that one side (upside of Fig. 7 and Fig. 8) inserts sheet 135a, and the opposing party's (downside of Fig. 7 and Fig. 8) inserts sheet 135b and forms roughly L shaped from the direction of insertion observation.By with these two insert sheet 135a, 135b insert Figure 10 and shown in Figure 11 in the brush carrier resettlement section slit 142a, the 142b of 141 correspondingly-shaped that form, brush carrier 131 is configured in the assigned position of brush carrier resettlement section 141.Each slit 142a, 142b form by separate a plurality of plate-shaped members 143 that predetermined distance forms opposed shape in brush carrier resettlement section 141.
In addition, form the planar teat of hemisphere 137 (with reference to Figure 13) on each insertion sheet 135a, 135b.When inserting sheet 135a, 135b insertion slit 142a, 142b, the planar recess (or groove) 144 (with reference to Figure 11 and Figure 13) of teat 137 and the hemisphere that forms on plate-shaped member 143 engages, and brush carrier 131 is maintained at the assigned position (with reference to Figure 14 and Figure 15) of brush carrier resettlement section 141 thus.When brush carrier 131 inserts brush carrier resettlement section 141, when brush 133 is compressed on the outer peripheral face of commutator 129, for with brush 133 to commutator 129 extruding and to the active force of the disc spring 134 of these brush carrier 131 application of forces, in the direction opposite with direction of insertion, namely extract on direction and play a role as counter-force.Yet, utilize engaging of above-mentioned teat 137 and recess 144, can overcome the counter-force that acts on brush carrier 131 and this brush carrier 131 is remained on assigned position.
In addition, the brush carrier 131 that is configured in brush carrier resettlement section 141 is subject to covering back cover 109 that the mode of back casing 106 assembles and is fixed (with reference to Fig. 4) from the rear side extruding of direction of insertion.Back cover 109 is corresponding with " cover " of the present invention.Back cover 109 is synthetic resin systems, as shown in Figure 6, forms the roughly cylindric of an end (front end) opening, and forms with 180 degree intervals two ribs 145 that extend along long axis direction at the cylinder hole internal face 109a of back cover 109 on Zhou Fangxiang.Rib 145 is as strengthening part performance function.The cylinder hole is corresponding with " inner space " of the present invention, and rib 145 is corresponding with " projecting strip part " of the present invention.When the mode that covers this back casing 106 with the long axis direction from back casing 106 when back cover 109 was assembled, rib 145 was formed at the tab 139 (with reference to the double dot dash line of Fig. 4 and Fig. 9) of each brush carrier 131 from the rear side extruding of direction of insertion.Thus, brush carrier 131 is firmly fixed under the state that breaks away from from brush carrier resettlement section 141 preventing.Tab 139 is corresponding with " squeezed splenium " of the present invention.Tab 139 is formed on a direction of insertion rear side of inserting sheet 135a with cylinder section 132 adjacency.
In addition, it is skewed outstanding that the coverage direction (assembly direction) of tab 139 relative back covers 109 is, and can be out of shape.Thus, guiding makes the end of rib 145 and tab 139 carry out butt.By making tab 139 be skewed outstanding consist of " taper guide portion " of the present invention.
In addition, cover the back cover 109 of back casing 106, the front end periphery of its open end and back casing 106 is chimeric, is utilizing trip bolt 147 to be fastened on (with reference to Fig. 2) on back casing 106 under this chimerism.Like this, back casing 106, brush carrier 131 and switches set 153 are housed in back cover 109.In addition, be assembled in the action bars 155 of switches set 153, outstanding to the outside from the opening (in order conveniently to omit diagram) that the rearward end at back cover 109 forms as shown in Figure 1, can be operated by the operator.Thereby, the operator controls motor shell 105 and the operation by action bars 155 to CD-ROM drive motor 121 driving of switching on, thereby can be rotated driving via 111 pairs of grinding stones 119 of Poewr transmission mechanism, carry out rightly grinding, the grinding operation to machined material or cut off operation.
In the present embodiment, brush carrier 131 is inserted the brush carrier resettlement section 141 of back casing 106 and is assembled on back casing 106 from the long axis direction of back casing 106, the direction of namely intersecting with the long axis direction of main part 103.Therefore, in the rearward end deploy switch wiring mechanism section 151 of back casing 106, to the casing structure that brush carrier 131 is counteracted from the rear of back casing 106 towards the place ahead assembling, can reasonably brush carrier 131 be assembled in the long axis direction zone line of back casing 106.
According to present embodiment, be assemblied in the rib 145 of the back cover 109 of back casing 106 along long axis direction, with tab 139 butts of brush carrier 131, thereby and it is pushed this tab 139 to the direction of insertion of brush carrier 131 realize fixing.Therefore, can be with brush carrier 131 being fixed in brush carrier resettlement section 141 with anticreep in stable conditionly.In addition, it is skewed outstanding that the assembly direction of tab 139 relative back covers 109 is, and can be out of shape, even thus and rib 145 and 139 deviations that relative positions occur on direction of insertion of tab, also can absorb this deviation luggage of going forward side by side and join.
In addition, in the present embodiment, guide to due to insertion sheet 135a, 135b with brush carrier 131 brush carrier resettlement section 141 formation slit 142a, 142b plate-shaped member 143 and insert in this slit 142a, 142b, therefore can easily carry out the insertion operation of 131 pairs of brush carriers brush carrier resettlement section 141.
In addition, after brush carrier 131 being inserted brush carrier resettlement section 141, be arranged at the teat 137 that inserts sheet 135a, 135b and engage with the recess 144 of brush carrier resettlement section 141 sides.Thus, brush carrier 131 overcomes the active force of the disc spring 134 of brush 133 application of forces and remains on assigned position.Thereby, when back cover 109 is installed on back casing 106, do not need the operator with finger, brush carrier 131 to be remained on the operation of brush carrier resettlement section 141, can improve the assembling operation of brush carrier 131 and back cover 109.
In addition, in the present embodiment, an example as electric tool uses electric disc grinder 101 to be illustrated, but so long as the rearward end of back casing 106 exist switch wiring mechanism section 151 such become brush carrier 131 from the electric tool of the structure of the parts of the obstruction of the rearward assembling mode in the place ahead of back casing 106, just can be suitable for.
Claims (2)
1. electric tool is characterized in that having:
Tool housing, it is distolateral and another distolateral disposing respectively for the functional part that front end tool is driven of long axis direction;
Motor, it is contained in described tool housing, the processing operation of stipulating by driving front end tool;
The brush carrier receiving space, it is formed on distolateral and another zone line of distolateral on long axis direction in described tool housing, and inside is formed with the slit that is made of plate-shaped member;
Brush carrier, it is arranged at described motor, and insert described brush carrier receiving space and be assembled from the direction that the long axis direction with described tool housing intersects, this brush carrier has the cylinder section of accommodating brush, and also be provided with integratedly squeezed splenium with this adjacency, also be formed with the insertion sheet that is inserted in described slit, described squeezed splenium is formed on a direction of insertion rear side of inserting sheet with described cylinder section adjacency;
Disc spring, it is installed on described brush carrier, with the mode effect of the brush in the cylinder section that will be contained in described brush carrier to the commutator extruding of described motor; With
Be arranged on the distolateral cover on the long axis direction of described tool housing,
The described hood-shaped hollow form that becomes an end opening, and has the inner space on the described tool housing long axis direction that is connected with this opening, and in described inner space, has the projecting strip part that the long axis direction from described open side along described tool housing extends, by the long axis direction of described cover from described opening along described tool housing being covered to an end outer surface and the zone line outer surface of this tool housing, thus a described end outer surface and zone line outer surface are housed in inner space
Described projecting strip part and the squeezed splenium butt that is inserted into the described brush carrier of described brush carrier receiving space push this brush carrier to the direction of insertion that the long axis direction with described tool housing intersects,
A side in the described insertion sheet of the described plate-shaped member of described brush carrier receiving space and described brush carrier is provided with projection, be provided with recess with described protrusions snap the opposing party, when described brush carrier is inserted into described brush carrier receiving space, described projection and the engaging of described recess, thereby described brush carrier is remained in described brush carrier receiving space
By engaging of described projection and described recess, make described brush carrier overcome the counter-force to described brush carrier that is generated to the described commutator described brush of extruding by described disc spring, described brush carrier is remained on described brush carrier receiving space.
2. electric tool according to claim 1, is characterized in that,
Described squeezed splenium has deformable taper guide portion, and when an end outer surface that in a covered manner described cover is assemblied in described tool housing and zone line outer surface, described guide portion guides it in the mode with the projecting strip part butt of described cover.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007328982A JP5191726B2 (en) | 2007-12-20 | 2007-12-20 | Electric tool |
| JP2007-328982 | 2007-12-20 | ||
| PCT/JP2008/073209 WO2009081868A1 (en) | 2007-12-20 | 2008-12-19 | Electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101896318A CN101896318A (en) | 2010-11-24 |
| CN101896318B true CN101896318B (en) | 2013-05-15 |
Family
ID=40801169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880120330.7A Expired - Fee Related CN101896318B (en) | 2007-12-20 | 2008-12-19 | Electric tool |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5191726B2 (en) |
| CN (1) | CN101896318B (en) |
| WO (1) | WO2009081868A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5502585B2 (en) * | 2010-04-26 | 2014-05-28 | 株式会社マキタ | Brush holder and electric tool provided with brush holder |
| DE102010021506B4 (en) * | 2010-05-26 | 2012-02-23 | Atlanta-Elektrosysteme Gmbh | brush bridge |
| CN103506958B (en) * | 2012-06-15 | 2016-10-05 | 株式会社牧田 | Water injection type electric tool |
| US9548013B2 (en) | 2012-10-05 | 2017-01-17 | Sharp Kabushiki Kaisha | Image display device and drive method therefor |
| US9620044B2 (en) | 2012-10-05 | 2017-04-11 | Sharp Kabushiki Kasiha | Image display device and drive method therefor |
| US9954418B2 (en) * | 2014-03-17 | 2018-04-24 | Makita Corporation | Power tool |
| JP6457739B2 (en) * | 2014-05-09 | 2019-01-23 | 株式会社マキタ | Electric tool |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2605891Y2 (en) * | 1993-10-28 | 2000-08-21 | 株式会社マキタ | Mounting structure of brush assembly |
| CN1727125A (en) * | 2004-07-29 | 2006-02-01 | 株式会社牧田 | Electric tool |
| CN1974142A (en) * | 2005-12-02 | 2007-06-06 | 株式会社牧田 | Electric tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0733579U (en) * | 1993-11-26 | 1995-06-20 | 日立工機株式会社 | Electric tool |
-
2007
- 2007-12-20 JP JP2007328982A patent/JP5191726B2/en not_active Expired - Fee Related
-
2008
- 2008-12-19 CN CN200880120330.7A patent/CN101896318B/en not_active Expired - Fee Related
- 2008-12-19 WO PCT/JP2008/073209 patent/WO2009081868A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2605891Y2 (en) * | 1993-10-28 | 2000-08-21 | 株式会社マキタ | Mounting structure of brush assembly |
| CN1727125A (en) * | 2004-07-29 | 2006-02-01 | 株式会社牧田 | Electric tool |
| CN1974142A (en) * | 2005-12-02 | 2007-06-06 | 株式会社牧田 | Electric tool |
Non-Patent Citations (2)
| Title |
|---|
| JP实开平7-33579U 1995.06.20 |
| JP实用新案登陆第2605891号Y2 2000.08.21 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009081868A1 (en) | 2009-07-02 |
| CN101896318A (en) | 2010-11-24 |
| JP2009148855A (en) | 2009-07-09 |
| JP5191726B2 (en) | 2013-05-08 |
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