CN102785173A - Grinder - Google Patents
Grinder Download PDFInfo
- Publication number
- CN102785173A CN102785173A CN2012101296579A CN201210129657A CN102785173A CN 102785173 A CN102785173 A CN 102785173A CN 2012101296579 A CN2012101296579 A CN 2012101296579A CN 201210129657 A CN201210129657 A CN 201210129657A CN 102785173 A CN102785173 A CN 102785173A
- Authority
- CN
- China
- Prior art keywords
- lock part
- cylindrical portion
- bearing portion
- card
- lock
- 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.)
- Pending
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Classifications
-
- 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
Abstract
A grinder includes a lock mechanism inhibiting detachment and rotation of a cylindrical portion of a wheel cover and attached to a bearing box. The lock mechanism includes a lock member and a torsion spring urging the lock member to the locked position. The lock member is ring-shaped, with a larger diameter than the cylindrical portion surrounds the bearing box and has a protruding engagement hook provided in a front side inner edge. The lock member can be slid between a front-side lock released position at which the engagement hook is separated away from the bearing box and the cylindrical portion can be attached to/detached from the bearing box, and a rear-side locked position at which the engagement hook passes through the cylindrical portion that surrounds the bearing box and engages with an outer periphery of the bearing box such that a front portion is contained within a gear housing.
Description
Technical field
The present invention relates to a kind of grinder, this grinder has the protective cover that is installed on the housing, on the main shaft that downside stretches out, the disc instrument can be installed by housing, and this protective cover covers this disc instrument by the top.
Background technology
Grinder has the protective cover that is installed on the housing, and at the disc instrument that emery wheel and skive etc. can be installed on the main shaft that downside stretches out by housing, this protective cover covers this disc instrument by the top.
Be the angle adjustment that corresponding different work is carried out protective cover, the locking mechanism of this protective cover through slip-off preventing or rotation is mounted with mode removably.In patent documentation 1 in the disclosed locking mechanism; The round shape bearing portion of supporting spindle is provided with Lock Part in the form of a ring; This Lock Part can move forward and backward and forwards load; This Lock Part has the through hole that bearing portion slide to be inserted, and outstandingly on the inner rim frame of the rear sides of this through hole is provided with fastener, between bearing portion and Lock Part, is connected with the cylindrical portion that is positioned at the protective cover upper end.That is, be contained in the through hole of cylindrical portion through being provided with on it in the bearing portion outward, card ends on the fastener of the Lock Part that quilt loads forward, and therefore, cylindrical portion is contained in outward in the bearing portion with the state that can not come off or rotate with respect to bearing portion.
Patent documentation 1: Japanese patent of invention International Publication text 2007-144219 number
In the locking mechanism that patent documentation 1 is put down in writing,,, Lock Part make Lock Part be forwards outstanding state by bearing portion owing to being in the position of advancing when protective cover during in installment state.Therefore, when operating, the Lock Part that is outstanding state is owing to being caused operability relatively poor by touching; Simultaneously when carrying out operation; As incident, if the situation at rear appears being pushed in Lock Part, the danger that then can make protective cover rotate or come off.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of grinder, the Lock Part of this grinder does not protrude in housing and can keep good operability, has guaranteed the reliability of the installation of protective cover simultaneously yet.
To achieve these goals, in technical scheme 1 described invention, the locking mechanism of protective cover comprises Lock Part and load maintainer; Lock Part is for to have larger-diameter ring-type than cylindrical portion, and Lock Part is contained in outward in the bearing portion, and Lock Part outstanding card that is provided with on the inside casing of front side ends tongue piece; Slide between the latch-release position that Lock Part can be forwardly and the latched position at rear, wherein, the latch-release position does; Card end tongue piece with respect to bearing portion forwards with it away from, make cylindrical portion with respect to bearing portion position removably, latched position does; Card ends tongue piece and passes the outer cylindrical portion in the bearing portion that is contained in; Card ends at the outer circumference place of bearing portion, and the front part of Lock Part is contained in the position in the procapsid by receipts when overlooking at least, and load maintainer loads Lock Part to latched position.
On the basis of technical scheme 1, in the technical scheme 2 described inventions, load maintainer is a torque spring, and torque spring is positioned at the upside or the downside of Lock Part, and along the left and right directions setting, the end card of torque spring ends on Lock Part.
On the basis of technical scheme 1 or 2, in the technical scheme 3 described inventions, in bearing portion, be embedded with elastomeric element, said elastomeric element protrudes in the outer circumference face of bearing portion, pushes on the inside circumference face of the cylindrical portion of adorning outside.
On any one basis of technical scheme 1～3, in the technical scheme 4 described inventions, locking mechanism is provided with limiting part; Limiting part can be between restriction site and restriction cancellation position move operation, wherein, restriction site does; Limiting part engages with the Lock Part that is positioned at the latch-release position; The limited lock limiting-members is by the position of the slip of latch-release position, and the restriction cancellation position is that limiting part is removed it and allowed the position of the slip of Lock Part with engaging of Lock Part.
[invention effect]
In technical scheme 1 described invention,, also guaranteed the reliability of the installation of protective cover simultaneously because the front part of Lock Part does not protrude in housing, thereby can keep good operability.
On the basis of the effect of technical scheme 1, in the technical scheme 2 described inventions, load maintainer had both been saved the space and had also been made locking mechanism compactness and miniaturization more.
On the basis of the effect of technical scheme 1 or 2, in the technical scheme 3 described inventions, can effectively prevent to be in protective cover loosening of installment state through elastomeric element.
On the basis of any one effect of technical scheme 1～3, in the technical scheme 4 described inventions,, therefore carry out the loading and unloading of the protective cover in the bearing portion more easily because Lock Part is maintained at the latch-release position through limiting part.
Description of drawings
Fig. 1 is the schematic perspective view of the fore-end of expression grinder;
Fig. 2 is the schematic perspective view (state that wheel guard is removed) of the fore-end of expression grinder;
Fig. 3 is the left view of the fore-end of expression grinder;
Fig. 4 is the part sectioned view that expression is dissectd along A-A among Fig. 3;
Fig. 5 is the profile that expression is dissectd along B-B among Fig. 4;
Fig. 6 is the profile that expression is dissectd along C-C among Fig. 3;
Fig. 7 is the profile that expression is dissectd along D-D among Fig. 3;
Fig. 8 is the schematic perspective view of expression bearing housing;
Fig. 9 is the structural representation of expression substrate, and wherein the back side (B) is represented in (A) expression bottom surface, (C) expression E-E profile;
Figure 10 is the structural representation of expression Lock Part, and wherein (A) expression is overlooked, (B) the expression longitudinal sectional drawing;
Figure 11 is the upward view of the fore-end of the expression grinder that omits cover body, and wherein the going-back position of the Lock Part of wheel guard is not installed in (A) expression, (B) progressive position of expression Lock Part;
Figure 12 is the C-C profile (installment state of wheel guard) in the presentation graphs 3;
Figure 13 is the A-A profile (installment state of wheel guard) in the presentation graphs 3.
[description of reference numerals]
1: grinder; 2: the motor case; 3: gear-box; 4: bearing housing; 5: main shaft; 6: bolt; 7: flange; 8,10: groove; 9: card ends recess; 12: rubber bar; 13: wheel guard; 14: cover body portion; 15: cylindrical portion; 17: through hole; 20: locking mechanism; 21: substrate; 22: Lock Part; 25: torque spring; 28: fastener; 29: guide part; 30: locking press button; 33: helical spring; 34: restriction is protruding; 36: card ends tongue piece; 38: recess.
The specific embodiment
Embodiment of the present invention is described with reference to the accompanying drawings.
Like Fig. 1～shown in Figure 7, an example of grinder is described.Grinder 1 has the gear-box 3 as procapsid, and this gear-box 3 is connected with the front end of the motor case 2 of receiving dress motor (not shown).Through gear-box 3 and the bearing housing 4 that is installed in gear-box 3 downsides as bearing portion; Main shaft 5 is supported with rotating mode along the vertical direction; The lower end of this main shaft 5 is stretched out to downside by housing, and the disk-like tool T of emery wheel and skive etc. is installed with mode removably on the lower end of main shaft 5.
Inside maintains the rounded cylindrical body of profile of the bearing housing 4 of ball bearing (not shown); Main shaft 5 is supported on the bearing housing 4 with rotating mode; As shown in Figure 8; Be formed with in the upper end of bearing housing 4 and be tetragonal flange 7, pass flange 7 through 4 bolts 6～6 bearing housing 4 is fixed on the lower surface of gear-box 3.In addition, be formed with the groove 8 that is the above-below direction perforation in the front side of bearing housing 4, be respectively arranged with only recess 9 of 1 card along radial direction the left and right of groove 8.End the groove 10,10 that is formed with above-below direction on the rear side of right side and bearing housing 4 of recess 9 at the card on right side.
More have; On the outer peripheral face of bearing housing 4; Except groove 8,10 and card end the recess 9,, also be provided with the rounded plug groove 11～11 of cross section ending the different position of recess 9 with groove 8,10 and card; The lower end of this plug groove 11～11 and the part of outer peripheral face are outwardly open state, and each is filled in groove 11～11 and is used to be pressed into the rubber bar 12 (Fig. 7) as elastomeric element.
Have again, be equipped with on the bearing housing 4 with disk-like tool T by above the wheel guard 13 that covers as protective cover, this wheel guard 13 can load and unload through locking mechanism 20.Wheel guard 13 is overlooked and is semicircle shape, has cover body portion 14 that upper surface and outer peripheral face with the latter half of disk-like tool 6 cover and cylindrical portion 15 coaxial with the center of the semicircle shape of the upper surface of this cover body portion 14 and that be connected.On the inside casing of the upper end of cylindrical portion 15, be formed with protrudingly 16～16, when cover body portion 14 is positioned at the state of rearward position, be positioned at same phase place at the groove 8,10 of the periphery setting of bearing housing 4 and the convexity 16～16 of cylindrical portion 15.In addition, as shown in Figure 2, on cylindrical portion 15, except that rear section, be provided with a plurality of through holes 17～17, this through hole 17～17 ends recess 9,9 with card and adopts the identical distance setting.
As shown in Figure 9, substrate 21 is fixed on the flange 7 for the plate body of c-shaped shape and the bolt 6,6 through rear side, this substrate 21 with the outer peripheral face of bearing housing 4 back half whole and slightly forwards the side part of extending cover.Be provided with in the position, the left and right sides of the rearward end of substrate 21 and be used to receive the receipts dress portion 24 pretended to the torque spring 25 of load maintainer (be used to form the part of receiving dress portion 24 the middle position of the left and right directions of the rearward end of substrate 21 is outstanding backward be provided with).Two backrush portions 26,26 about torque spring 25 has; Above-mentioned receipts dress portion 24 keeps two backrush portions 26,26 and the pin 27 that connects two backrush portions 26,26 jointly; Two ends of torque spring 25 are fixed on receives in the dress portion 24; And end on Lock Part 22, thereby Lock Part 22 is rearward loaded in the fastener 28 downward pleurapophysis card releases of two backrush portions 26, formation between 26.
In addition; The outstanding downwards guide part 29,29 that is provided with shape triangular in shape on the lower surface of the substrate 21 of the perforation of bolt 6,6 part; Side about this guide part 29,29 is the fore-and-aft direction setting according to the wiring direction of bearing housing 4, and rear side also is the setting of left and right directions according to the wiring direction of bearing housing 4.The internal diameter of substrate 21 that includes guide part 29,29 is big slightly than the external diameter of bearing housing 4; Be in the state that is fixed on the flange 7 at substrate 21; Shown in figure 11; The outer circumference noncontact of the inside circumference face of substrate 21 and the bearing housing 4 of coaxial setting promptly is formed with the gap between bearing housing 4 and substrate 21, the cylindrical portion 15 of wheel guard 13 is slidably inserted this gap.
More have, on the left surface of substrate 21, be provided with locking press button 30 as limiting part.As shown in Figure 4; These locking press button 30 quilt receipts are contained in along being received dress in the receipts tankage 31 of the left and right directions formation of substrate 21 and with the state that can stretch out or be hidden in this receipts tankage 31; Between the bottom of maintenance groove 32 that is provided with on the upper surface of locking press button 30 and receipts tankage 31, be provided with helical spring 33 simultaneously, locking press button 30 loaded by the protruding direction of substrate 21 to this locking press button 30 through this helical spring 33.The lower surface of locking press button 30 on the end of the inserting side of substrate 21, be formed with restriction projection 34 towards downside, this restriction projection 34 is stretched chimeric being installed to the guiding groove 35 that is connected setting with guide part 29 from receiving tankage 31.Contact with this restriction projection 34 owing to protrude in the Lock Part 22 of the side of guide part 29, thus the outwards outstanding position of limited lock set button 30.
The framework that Lock Part 22 is square for the rounded rear side in front side; The outside dimension of the internal diameter size of front side and the cylindrical portion 15 of wheel guard 13 is identical substantially, the interval between the inner surface of rear side with about the left and right side of guide part 29,29 between size identical substantially.In addition, shown in figure 10, the card of corresponding bearing housing 4 ends recess 9, the 9 outstanding only tongue pieces 36,36 of 2 cards that are provided with on the inside casing of front side, is formed with the fastener 28 cards concave part 37 only that is used for torque spring 25 in the centre of rear side inside casing.
Because on the guide part 29,29 about the rear side of Lock Part 22 is enclosed within; This Lock Part 22 is contained on the bearing housing 4 outside can only be under the state that fore-and-aft direction slides; The cover body 23 that is C word shape of the lower surface through being fixed on guide part 29,29 by bolt 6,6 can prevent that this Lock Part 22 from coming off downwards.
In addition; Because fastener 28 cards of torque spring 25 end on the groove 37 of Lock Part 22 rear sides, shown in (A) among Figure 11, usually in the state; Lock Part 22 is loaded by position rearward, and promptly card ends tongue piece 36,36 and is inserted into the only position in the concave part 9,9 of card.
Have again,, be arranged side by side 2 recesses 38,38 that restriction projection 34 cards with locking press button 30 end along fore-and-aft direction at the upper surface of the inside casing of the horizontal side of Lock Part 22.Outside the cylindrical portion 15 of wheel guard 13, be contained in the state on the bearing housing 4; This recess 38,38 corresponds respectively to the latched position of front side and the latch-release position of rear side; The latched position of this front side is meant that card ends tongue piece 36,36 and connects cylindrical portion 15 and be inserted into the only position in the recess 9,9 of card; The latch-release position of this rear side is meant that card ends tongue piece 36,36 and is positioned at and leaves the position that card ends recess 9,9 and cylindrical portion 15 forward, and in above-mentioned each position, locking press button 30 is given prominence to the restriction site direction; Promptly limit the positions that projection 34 and recess 38 cards end, thus slip that can limited lock limiting-members 22.When overcoming the operation of elastic acting force of helical spring 33 when pressure- locking button 30,30 restriction cancellation positions that from recess 38, break away to restriction projection 34 of locking press button are retreated, thereby can allow the slip of Lock Part 22.
In the structure of aforesaid grinder; When on bearing housing 4, emery wheel 13 being installed, pressure-lock button 30 earlier, the card of the recess 38 of projection that lifts restrictions 34 and front side ends; End under the state of removing at this card then, Lock Part 22 latch-release position is forwards moved.Like this, after the restriction projection 34 of locking press button 30 breaks away from above-mentioned recess 38, arrive the inside casing of Lock Part 22 horizontal sides, recess 38 cards with rear side end then, thereby Lock Part 22 is fixed on the latch-release position.Have again, in order to push Lock Part 22 to front side, the left and right sides lateral surface of Lock Part 22 is provided with outstanding laterally curved protrusion 39,39, can be easy to make Lock Part 22 forwards to slide through finger presses curved protrusion 39,39.
Shown in (B) among Figure 11; In above-mentioned state; Because ending tongue piece 36,36, the card of Lock Part 22 is positioned at the position that card with bearing housing 4 ends the place ahead that concave part 9,9 is separated; So can be positioned at the state that rear position and protruding 16 matches with the phase place of groove 8,10 in cover body portion 14, the cylindrical portion 15 that makes wheel guard 13 is by being contained in outside the below on the bearing housing 4.Like this, as shown in Figure 6, the card that the through hole 17,17 in the front side of cylindrical portion 15 is arranged in bearing housing 4 ends the state in the outside of recess 9,9, and cylindrical portion 15 is held between bearing housing 4 and substrate 21.Again since the side that is arranged on the rubber bar 12 on the bearing housing 4 by on the inside circumference face that has been pressed in cylindrical portion 15, so wheel guard 13 is held and can occur rocking or rotating.
Pressure-lock button 30, make Lock Part 22 remove the restriction of sliding, under the elastic acting force of torque spring 25, Lock Part 22 rearward slides into inside casing and the periphery position contacting of cylindrical portion 15 of the front side of Lock Part 22.Like this; Shown in figure 12; The card of Lock Part 22 ends the through hole 17,17 that tongue piece 36,36 passes cylindrical portion 15, and the card that is inserted into bearing housing 4 via cylindrical portion 15 ends in the recess 9,9, and this makes cylindrical portion 15 form as one with the state and the bearing housing 4 that can not come off and can not rotate.At this moment, shown in figure 13, remove the pushing of locking press button 30, restriction projection 34 once more with recess 38 clampings of the front side of Lock Part 22, thereby keep the latched position of Lock Part 22.The Lock Part 22 that is in latched position does not protrude in gear-box 3 forward when overlooking.
When the angle of wheel guard 13 being adjusted according to different operations; Through erection sequence the same when installing; Lock Part 22 is moved towards the latch-release position; And through locking press button 30 fixing after, wheel guard 13 is taken off from bearing cage 4, the angle that the groove 8,10 of the convexity 16 of cylindrical portion 15 and bearing housing 4 is positioned at same phase changes to the angle of the same phase of other positions and installs.
According to the grinder 1 of above-mentioned form, the locking mechanism 20 of this grinder 1 comprises Lock Part 22 and load maintainer (torque spring 25), and Lock Part 22 is for to have larger-diameter ring-type than cylindrical portion 15; Lock Part 22 is outer to be contained on the bearing housing 4, and Lock Part 22 is the outstanding only tongue piece 36 of card that is provided with on the inside casing of front side, slides between the latch-release position that Lock Part 22 can be forwardly and the latched position at rear; Wherein, the latch-release position does, card end tongue piece 36 with respect to bearing housing 4 forwards with it away from; Make cylindrical portion 15 with respect to bearing housing 4 position removably; Latched position is that card ends tongue piece 36 and passes the outer cylindrical portion 15 on the bearing housing 4 that is contained in, and blocks the outer circumference place of ending at bearing housing 4; The front part of Lock Part 22 is contained in the gear-box 3 by receipts when overlooking; Be in the position at rear than the latch-release position, load maintainer (torque spring 25) loads Lock Part 22 to latched position, because the front part of Lock Part 22 does not protrude in housing; Thereby can keep good operability, also guaranteed the reliability of the installation of wheel guard 13 simultaneously.
Especially; Said load maintainer is a torque spring 25; Said torque spring 25 is positioned at the upside of said Lock Part 22; Along the left and right directions setting, the end card of said torque spring 25 ends on said Lock Part 22, torque spring 25 had both been saved the space as load maintainer also made locking mechanism 20 compactness and miniaturization more.
In addition, on bearing housing 4, be embedded with rubber bar 12, this rubber bar 12 protrudes in the outer circumference face of bearing housing 4, pushes outside on the inside circumference face of said cylindrical portion 15 of dress, therefore can effectively prevent to be in wheel guard 13 loosening of installment state.
In the above-described embodiment, on Lock Part, be provided with 1 pair of card and end tongue piece, yet be not limited thereto, also can be provided with more than 3.In addition, the shape that card ends tongue piece also is not limited to above-mentioned embodiment, also can be tabular or the pin shape.Have again, the Lock Part of above-mentioned embodiment, the front side is circular; Rear side is square, yet is not limited thereto, and also can make suitable change according to the shape of procapsid; For example, the square shape that the front side also can be square, rear side are circular elliptical shape; Perhaps all be circular, about the inside circumference frame, form chamfering etc.
Also have; The left and right side of the Lock Part in the above-mentioned embodiment is set to curve tab; Be that front side portion is contained in the procapsid by receipts when the latched position place is overlooked; Yet be not limited thereto, also can be set to curve tab and adopt and to make the left and right side when overlooking also be the state that is housed in the procapsid through the recess of finger manipulation.
Torque spring as load maintainer; Between two backrush portions, be provided with fastener; This fastener card ends on Lock Part, yet is not limited thereto, and also can the card of end separately of the torque spring of pair of right and left configuration be ended on Lock Part and rearward loads etc.In addition, torque spring also can be arranged on the downside rather than the upside of Lock Part, also not only is confined to torque spring, also can use other elastomeric element such as helical spring or flat spring.
More have; In the above-described embodiment, locking press button is engaged, even also the slip of Lock Part is limited respectively with Lock Part in the latched position and the latch-release position of Lock Part in latched position; Thereby make Lock Part when locking, have very high reliability; Yet be not limited thereto, also can reduce the recess of a Lock Part, only this recess is engaged with locking press button in the latch-release position.Also have, the limiting part of locking press button etc. also can be arranged on other the place on the right side of bearing portion etc., and the form of limiting part also can be made suitable change except the form of pushing, for example also can be through sliding up and down relative Lock Part engaging or separation etc.
In addition, the elastomeric element that is arranged on bearing portion except for columned bar-shaped, also can adopt cross section is semicircle or trapezoidal pin, perhaps spherical again rubber etc.
Also have, the form of protective cover also can be the wholecircle shape except the semi-circular shape of cover body portion, is arranged on the also changeable of quantity of the through hole of cylindrical portion.In addition, except through hole, also can be the recess of lower ending opening.
Claims (4)
1. grinder; The place ahead at the electric machine casing of receiving the dress motor is connected with procapsid; Said procapsid can be installed discoid instrument so that the rotating mode of main shaft supports it along the vertical direction downwards on the lower end of the main shaft that is stretched out by said procapsid, in the bottom that is positioned at said procapsid and the profile that is used to support said main shaft in the circular bearing portion protective cover being installed; Said protective cover has the cover body portion that is covered said disk-like tool by the top; And connect the upper end be arranged on said cover body portion and can be contained in the cylindrical portion in the said bearing portion outward, in said bearing portion, be provided with the locking mechanism that the said cylindrical portion that prevents outer dress comes off or rotates; It is characterized in that
Said locking mechanism comprises Lock Part and load maintainer, and said Lock Part has larger-diameter ring-type for more said cylindrical portion, and said Lock Part is contained in outward in the said bearing portion; Said Lock Part is the outstanding only tongue piece of card that is provided with on the inside casing of front side, slides between the latch-release position that said Lock Part can be forwardly and the latched position at rear, wherein; The latch-release position does; Said card end tongue piece with respect to said bearing portion forwards with it away from, make said cylindrical portion with respect to said bearing portion position removably, latched position does; Said card ends tongue piece and passes the outer cylindrical portion that is contained in the said bearing portion; Card ends at the outer circumference place of said bearing portion, and the front part of said Lock Part is contained in the position in the said procapsid by receipts when overlooking at least
Said load maintainer loads said Lock Part to said latched position.
2. grinder according to claim 1 is characterized in that,
Said load maintainer is a torque spring, and said torque spring is positioned at the upside or the downside of said Lock Part, and along the left and right directions setting, the end card of said torque spring ends on said Lock Part.
3. according to claim 1 or 2 described grinders, it is characterized in that,
In said bearing portion, be embedded with elastomeric element, said elastomeric element protrudes in the outer circumference face of said bearing portion, pushes on the inside circumference face of the said cylindrical portion of dress outside.
4. according to any described grinder in the claim 1～3, it is characterized in that,
Said locking mechanism is provided with limiting part; Said limiting part can be between restriction site and restriction cancellation position move operation, wherein, said restriction site does; Said limiting part engages with the said Lock Part that is positioned at said latch-release position; Limit the position of said Lock Part by the slip of said latch-release position, said restriction cancellation position is that said limiting part is removed it and allowed the position of the slip of said Lock Part with engaging of said Lock Part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011109618A JP2012240127A (en) | 2011-05-16 | 2011-05-16 | Grinder |
| JP2011-109618 | 2011-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102785173A true CN102785173A (en) | 2012-11-21 |
Family
ID=46044469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101296579A Pending CN102785173A (en) | 2011-05-16 | 2012-04-27 | Grinder |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20120295524A1 (en) |
| EP (1) | EP2524765A1 (en) |
| JP (1) | JP2012240127A (en) |
| CN (1) | CN102785173A (en) |
| RU (1) | RU2012118374A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015129359A1 (en) * | 2014-02-28 | 2015-09-03 | 日立工機株式会社 | Electric tool |
| JP6982991B2 (en) | 2017-06-20 | 2021-12-17 | 株式会社マキタ | Grinder |
| JP7110025B2 (en) * | 2018-08-07 | 2022-08-01 | 株式会社マキタ | Electric tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079314C (en) * | 1995-08-19 | 2002-02-20 | 罗伯特-博希股份公司 | Protective cover of angle steel grinder |
| US20060178097A1 (en) * | 2004-05-12 | 2006-08-10 | The Stanley Works | Portable rail cutting apparatus |
| DE102008010977A1 (en) * | 2008-02-25 | 2009-08-27 | Robert Bosch Gmbh | Hand tool, in particular hand-guided grinding machine |
| CN101607391A (en) * | 2008-06-17 | 2009-12-23 | 罗伯特·博世有限公司 | Toolroom machine, particularly hand held power machine |
| CN101244532B (en) * | 2007-01-11 | 2010-12-29 | Sp空气株式会社 | Die grinder with rotatable head |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006027576A1 (en) | 2006-06-14 | 2007-12-20 | Robert Bosch Gmbh | Guard attachment device |
| DE102007000845A1 (en) * | 2007-10-11 | 2009-04-16 | Hilti Aktiengesellschaft | Manually operated machine for operating separating or grinding tool, has housing, drive screw for separating or grinding tool, and clamping lever mechanism that is provided with retaining spring element |
| DE102009048357A1 (en) * | 2009-10-06 | 2011-04-21 | Metabowerke Gmbh | Electric hand tool |
-
2011
- 2011-05-16 JP JP2011109618A patent/JP2012240127A/en not_active Withdrawn
-
2012
- 2012-04-23 US US13/453,568 patent/US20120295524A1/en not_active Abandoned
- 2012-04-25 EP EP12165505A patent/EP2524765A1/en not_active Withdrawn
- 2012-04-27 CN CN2012101296579A patent/CN102785173A/en active Pending
- 2012-05-03 RU RU2012118374/02A patent/RU2012118374A/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079314C (en) * | 1995-08-19 | 2002-02-20 | 罗伯特-博希股份公司 | Protective cover of angle steel grinder |
| US20060178097A1 (en) * | 2004-05-12 | 2006-08-10 | The Stanley Works | Portable rail cutting apparatus |
| CN101244532B (en) * | 2007-01-11 | 2010-12-29 | Sp空气株式会社 | Die grinder with rotatable head |
| DE102008010977A1 (en) * | 2008-02-25 | 2009-08-27 | Robert Bosch Gmbh | Hand tool, in particular hand-guided grinding machine |
| CN101607391A (en) * | 2008-06-17 | 2009-12-23 | 罗伯特·博世有限公司 | Toolroom machine, particularly hand held power machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012240127A (en) | 2012-12-10 |
| RU2012118374A (en) | 2013-11-10 |
| US20120295524A1 (en) | 2012-11-22 |
| EP2524765A1 (en) | 2012-11-21 |
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Application publication date: 20121121 |