CN1532025A - Grinder with easily detachable grinding sheet - Google Patents
Grinder with easily detachable grinding sheet Download PDFInfo
- Publication number
- CN1532025A CN1532025A CNA031478611A CN03147861A CN1532025A CN 1532025 A CN1532025 A CN 1532025A CN A031478611 A CNA031478611 A CN A031478611A CN 03147861 A CN03147861 A CN 03147861A CN 1532025 A CN1532025 A CN 1532025A
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- pulling
- rotating shaft
- grinder
- support
- easy
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Abstract
The invention discloses a grinder with easily detachable grinding sheet, comprising: a body, in which a driving device is installed to drive a rotating shaft to rotate, and a circle of tooth part is arranged on the circumferential surface of the rotating shaft; the bottom surface of the body is provided with a bracket which can be rotated, a tray is arranged below the bracket, and a predetermined number of pulling pieces are respectively arranged in radial rail grooves arranged on the tray and can slide; when the support is rotated, the pulling pieces are driven to move along the rail grooves, and when the pulling pieces are mutually abutted, the arc-shaped tooth parts arranged at the inner ends of the pulling pieces are meshed with the ring tooth parts of the rotating shaft, so that the rotating shaft cannot rotate, and the grinding sheet is convenient to replace; when the grinding sheet is completely assembled and disassembled, the clamping pieces can slide outwards along the grooves, so that the state of meshing with the rotating shaft is relieved. The invention can generate the state of fixing the rotating shaft or releasing the rotating shaft through simple operation to generate the effect of replacing the grinding sheet, does not need any tool, has convenience in operation, and can avoid various inconveniences and limitations such as no tool can be found.
Description
Technical field
The present invention relates to a kind of lapping device, detailed a kind of grinder of finger, its need not tool using fixedly the rotating shaft of grinder with the replacing abrasive sheet.
Background technology
Grinder is no matter pneumatic or electronic pattern is ground object with abrasive sheet that its bottom is installed.Various abrasive sheets have different grindings or polishing effect, must change different abrasive sheets often so grind different objects.
In the known grinder structure, establish the rotating shaft of an off-centre in rotor (pneumatic person) or motor (electronic person) bottom, the rotating shaft bottom also sets firmly a hexagonal (hexagon)nut; And a screw rod is established at abrasive sheet end face center, is bolted in this nut and turned by rotating shaft with this screw rod.In addition, the grinder bottom also is provided with a protective cover, and cover is overlying on the abrasive sheet periphery, so that protective action to be provided.
Traditional grinder, must stretch into the gap of this spanner between protective cover and abrasive sheet when desire is changed abrasive sheet with the spanner of a flat, makes spanner entangle this nut, makes rotating shaft rotate, and unloads or screws in order to do abrasive sheet is unscrewed.Yet, the known quite inconvenience of operation that is configured in the replacing abrasive sheet:
Owing to be subjected to blocking of protective cover, the user also can't be visual to this nut, therefore, spanner also is difficult for socket to nut, adding rotating shaft is eccentric the setting, and the position of nut is unfixing, more increases the difficulty of socket nut, the user often must can entangle nut through the beginning after the multi-pass operation, quite inconvenience in the operation.
Moreover changing abrasive sheet must also can increase inconvenience and restriction (for example can not find instrument) with instrument, is not to be a good design.
Summary of the invention
The object of the present invention is to provide a kind of need not be when changing abrasive sheet by the grinder of any instrument.
For achieving the above object, the present invention adopts following design: a kind of grinder that is easy to detachable grinding blade, and it is characterized in that: it includes:
One body; One drive unit is located in this body; One rotating shaft is articulated in this drive unit bottom, and turned by drive unit; The side face of this rotating shaft is provided with a circle tooth portion;
One support, the annular body portion with a hollow; This is set up in this body bottom, can be rotated and changes the position, angle;
One pallet, its central authorities are saturating empty; At least two rail grooves are located on the pallet along the radially setting of pallet, and this pallet is located at this body bottom, are concentric circles with this support;
Deng the pull part of number, be located in these rail grooves, and must be these parts and be connected of pulling respectively with this support along the slippage of rail groove in these rail grooves; At least one arc tooth portion is located at least one part the inner of pulling; When rotating this rotating disk, drive these parts of pulling synchronously along the displacement between open position and a closing position outside of rail groove;
This rotating shaft is extended through in this support and this pallet, and its tooth portion and these arc tooth portions are positioned at equal height;
When these parts of pulling were positioned at closing position, these arc tooth portion bridle joints were in this circle tooth portion of this rotating shaft: these parts of pulling are during in outer tension position, and these arc tooth portions discharge this circle tooth portion.
Advantage of the present invention: the present invention is easy to the grinder of detachable grinding blade, includes: a body, and inner installing one drive unit rotates in order to drive a rotating shaft, and this rotating shaft side face is established a circle tooth portion; This body bottom surface is provided with a support, can be rotated, and more is provided with a pallet in this support below, and the part of pulling of predetermined number is located at respectively in the radially rail groove set on the pallet and slip; When rotating this support, drive these parts of pulling along the displacement of rail groove, when pulling the mutual closing of part, gnaw this circle tooth portion of rotating shaft of the inner set arc tooth portion of the part of pulling can't rotate rotating shaft, so that the replacing abrasive sheet; After the abrasive sheet dismounting is finished, can make these parts of pulling along the slippage outward of rail groove, with the gnaw state of rotating shaft of releasing.Hence one can see that, and the present invention is via shirtsleeve operation, can produce fixed rotating shaft or remove the state of rotating shaft, to produce the effect of changing abrasive sheet, need not go up other tool convenience in operation by any instrument, and can avoid inconvenience and restriction such as the instrument of can not find.
Is the effect further understanding purpose of the present invention, feature and reached, below lifts the some preferred embodiments of the present invention now, and after cooperating graphic being described in more detail in, wherein, graphic is arranged to:
Description of drawings
Fig. 1: the stereogram of a preferred embodiment of the present invention.
The exploded perspective view of Fig. 2: Fig. 1.
The longitudinal sectional drawing of Fig. 3: Fig. 1.
The bottom view of Fig. 4: Fig. 1.
The partial sectional view of the local structure of Fig. 5: Fig. 1.
Fig. 6: the combination partial sectional perspective view of the pallet of a preferred embodiment of the present invention, support and the part of pulling.
The top view of Fig. 7: Fig. 6 shows and pulls part in the state of release position.
Fig. 8: generally be same as Fig. 7, show another activated position of the present invention.
Fig. 9: when being shown in the state of Fig. 8, the part of pulling is positioned at closing position.
Figure 10: show the bottom view of the present invention when the state of Fig. 9.
Figure 11: the exploded perspective view of the part member of another preferred embodiment of the present invention.
Figure 12: the present invention is the exploded perspective view of a preferred embodiment again.
Figure 13: generally be same as Fig. 6, be the three-dimensional combination figure of present embodiment part member, show and pull part in the state of release position.
The top view of Figure 14: Figure 13.
Figure 15: the bottom view of present embodiment.
Figure 16: generally be same as Figure 14, show that the part of pulling is positioned at the state of closing position.
Figure 17: the bottom view of present embodiment when the state of Figure 16.
Figure 18: the bottom view of the another preferred embodiment of the present invention.
The specific embodiment
At first see also Fig. 1, Fig. 2, a preferred embodiment of grinder 10 provided by the present invention.Include:
One body 20 has a portion 22, and this one is rounded to being less than the bottom; One ring portion 24, diameter is big than this one 22, is positioned at a portion bottom; Have three connecting portions 26 in this circle portion week, be connected between this one 22 and the circle portion 24, between this three connecting portion, form three equally spaced hollow parts 28 in equally spaced mode.In addition, be provided with two graphic 30,32 in a junction end face wherein.One space 34 please cooperate and consult Fig. 3, is located in the tube portion 22 of body, is located in wherein for a drive unit 35.Because the present embodiment those shown is a pneumatic lapper, so these drive unit 35 1 cylinders 36 and one are located at the rotor 37 of cylinder interior.
One rotating shaft 40 is articulated in this drive unit 35 bottoms with the state of off-centre, and turned by the driving shaft 38 of drive unit.It is conventional construction that rotating shaft is eccentric state, in order to do must produce shock effect when rotating.These rotating shaft 40 bottoms are established a screw 42 vertically toward in.Wherein, the side face of the present invention in the rotating shaft bottom is provided with a circle tooth portion 45, as shown in Figure 4.
One rotating disk 50 as shown in Figure 1 and Figure 2, is made of three arc bodies 52 with identical footpath degree (respectively being 120 degree arc length) in present embodiment, and these three arc bodies, 52 rings place this circle portion 24 peripheries, hide in these connecting portions 26 end faces.
One support 60 has a body portion 62 and three in the form of annular discs and is located at this body portion foot rest 64 on every side in equally spaced mode.In addition, a through hole 65 is established at these body portion 62 centers, be provided with three oblique guide grooves 66 in the body portion 62 and in equally spaced mode, respectively this guide groove has a medial extremity 661 and an outboard end 662, footpath in body portion 62 makes progress, this medial extremity 661 approaches body portion center, and outboard end 662 is away from body portion center.This support 60 is installed in this circle portion 24, and this tripod 64 is extended through this three hollow part 28 respectively, and respectively is fixed in each arc body 52 default pivoted hole 521 with a screw 69, as Fig. 5.Because this three arc body 52 is fixed in this tripod respectively, so these arc bodies remain in rounded configuration, can not separate.When in circle portion 24, rotating this rotating disk 50, can drive this support 60 displacements.These foot rests 64 and guide groove 66 are concentric circles with body portion 62 centers.And the driving shaft 38 of body portion center and drive unit 35 is concentric.
One pallet 70, its center are established a circular hole 72, and its end face then is provided with three rail grooves 74, and this three rails groove 74 is along the radially setting of pallet 70, and are equiangularly arranged.
Three parts 80 of pulling in the form of sheets, are located at respectively in this three rails groove 74, and must be along the slippage of rail groove; An arc tooth portion 82 with plurality of teeth is respectively established in part 80 the inners of respectively pulling, and this three arcs tooth portion 82 just constitutes configurations of circles.The tooth of each tooth portion 82 has identical tooth pitch (pitch) with the tooth of this circle tooth portion 45 of this rotating shaft 40.Three guide pillars 84 are fixedly arranged on this three part 80 of pulling respectively.
This three part 80 of pulling is packed into behind the pallet 70, with three screws 86 pallet is fixed in the little protuberance 241 (as Fig. 2, Fig. 3) of Zhou Suoshe in this circle portion 24, use being fixedly arranged in this circle portion, and pallet is proper smooth in body portion 62 bottom surfaces of this support 60 with the part of pulling; See also Fig. 6, this three guide pillar 84 is inserted into respectively in this three guide groove 66.Pallet 70 also is concentric setting with support 60.
After these members 60,70,80 were installed in the circle portion 24, as shown in Figure 3, this circle tooth portion 45 of these rotating shaft 40 bottoms was extended through in the circular hole 72 of support and pallet.
One guard shield 90 is made by hard plastic or rubber, is hollow form, and it is sheathed on circle portion 24 peripheries, to form protective action.
State after the present embodiment installing as shown in Figure 1, wherein, rotating disk 50 has at least one form 55 (present embodiment is inner concavity), this form 55 is corresponding to the connecting portion 26 that is provided with this two graphic 30,32.In the state of Fig. 1, this form 55 just position is indicating 30 parts, and this is denoted as the pattern of a spanner.At this moment, rotating disk 50 is positioned at a release position, in this position, sees also Fig. 7, and respectively this guide pillar 84 is positioned at the outboard end 662 of guide groove 66, and this three part 80 of pulling is the external-open state.Under this state, see also Fig. 4, rotating shaft 40 is not restricted, and turns freely, after starting this grinder, turns the abrasive sheet (not shown) with grinding work-piece by rotating shaft.
When desire was changed abrasive sheet, the operator turned to closing position shown in Figure 8 with rotating disk 50 clockwise, and at this moment, this form 55 exposes another sign 32, indicated 32 and showed that a spanner entangles the pattern of nut, so that the operator senses the state that rotating shaft is limited.
In Fig. 8, during the clockwise angular displacement of rotating disk 50, drive support 60 and rotate synchronously, at this moment, this three guide groove 66 will change the position, angle, and this three guide pillar 84 is promptly by the outboard end 662 migration medial extremitys 661 of guide groove, as shown in Figure 9.During guide pillar 84 displacement, this three pull part 80 is driven by guide pillar, is moved to a closing position along rail groove 74 toward interior slippages, and this three part of pulling is mutual closing, makes its arc tooth portion 82 be closed into the circle of a driving fit.So the circular motion of rotating disk converts the rectilinear motion of the part of pulling to.
Under this state, see also Figure 10, this three pulls arc tooth portion 82 bridle joints of part in this circle tooth portion 45 of rotating shaft 40, and rotating shaft promptly is fixed and can't rotates.The operator can be bolted in the screw rod of abrasive sheet in the screw 42 of rotating shaft, or screws off in screw, so promptly dismantled and assembled, replacing abrasive sheet.
In what this should be specified be, this three pulls part 80 when closed, these three arcs tooth portion, 82 formed circumferential size, identical with the rotating shaft 40 off-centre formed circumferential size that rotatablely moves, therefore, after grinder shut down, no matter rotating shaft stopped at position, any angle, all can be subjected to this three pull part folded pull fixing.
When desire starts grinder, rotating disk 50 need only be rotated counterclockwise go back to the release position of Fig. 1, make guide pillar 84 be displaced to the outboard end of guide groove, this three outer open position of pulling part and replying Fig. 7, the gnaw state of rotating shaft of releasing.
In addition, the pallet end face can uniformly-spaced convex with three location divisions 76 in closing on the periphery part, as Fig. 9.Three are recessed into 68, respectively have suitable arc length, can equally spaced mode be located at this body portion 62 peripheries.Each location division 76 is arranged in each and is recessed into 68, is butted on location division 76 by each recessed 68 2 side, also can be used as rotating disk and the support stop when angular displacement.
By on take off embodiment as can be known, the present invention is via shirtsleeve operation, can produce fixed rotating shaft or remove the state of rotating shaft, to produce the effect of changing abrasive sheet, and need not be by any instrument, go up other tool convenience in operation, and can avoid inconvenience and restriction such as the instrument of can not find.
This two sign 30,32 can be differentiated rotating shaft system for the operator and be in state free to rotate or that be fixed, meets the design of Human Engineering.
Figure 11: another preferred embodiment of grinder of the present invention only shows support 92 and the part 95 of pulling.In the present embodiment, three guide grooves 96 are located at this three part 95 of pulling respectively; Three guide pillars 94 then are located on the support 92, are embedded in guide groove.By this, during swinging mounting 92, can drive the part 95 of pulling equally along the displacement of rail groove.
See also Figure 12 again, another preferred embodiment of grinder 100 of the present invention, wherein: the structure of body 110, rotating disk 112, support 114, pallet 116 and the part 120 of pulling is identical with first embodiment, holds and does not give unnecessary details.
Present embodiment is compared to first embodiment, its main difference be in:
This three is pulled in the part, and wherein an arc tooth portion 125 is established in a inner of pulling part 120a, and all the other two the inners 126 of pulling part 120b, 120c then are not provided with tooth portion, and that this two the inner 126 can be made into is plane, arc surfaced or be inner concavity as shown in the figure.
Same, see also Figure 14, Figure 15, when this three pull part 120 be positioned at outside during open position, rotating shaft 118 is not restricted, and freely rotates so can turn abrasive sheet.
When desire is changed abrasive sheet, when support 114 is rotated in the closing position of Figure 16, drive this and three pull part 120 along moving to closing position in the rail groove 117, as Figure 17, can make the gnaw tooth portion 119 of rotating shaft 118 of the tooth portion 125 of the part 120a that pulls, make rotating shaft rotate, to change abrasive sheet.
Three pull part when closed in this, if rotating shaft 118 residing positions are not to be close to the part 120a that pulls, and be close in addition two pull one of part 120b or 120c, for example shown in the imaginary line of Figure 16, be close to when pulling part 120b, at this moment, in the part 120b closing course of pulling, its the inner 126 will promote rotating shaft and move, and the camber line d shown in the center c of rotating shaft promptly goes up along figure and angular displacement are gone up the position shown in the solid line to figure, and the tooth portion 125 of the part 120a that is subjected to pulling nibbles.In other words, when the part of pulling was closed, no matter rotating shaft was in any position, and the part 120a that all will be subjected to pulling gnaws fixing.Simultaneously, this three is pulled after the part closure, and this two 126 of the inner of pulling part 120b, 120c forms one than narrow space, limits rotating shaft, makes rotating shaft can't break away from engagement situation with the part 120a that pulls.
Figure 18 is the bottom view of another preferred embodiment of the present invention, its difference be in: this three is pulled in the part 130, and two the inners of pulling part 130a are provided with arc tooth portion 135; Arc tooth portion is not then established in the inner of another part 130b that pulls, and is plane, arc surfaced or invaginated type.
Same, when the part of pulling of present embodiment was closed, rotating shaft also can't break away from the meshing relation with the part 130a that pulls.
What must illustrate in addition, is that the present invention can make support directly expose outside body, makes directly swinging mounting of operator.
Claims (14)
1. grinder that is easy to detachable grinding blade, it is characterized in that: it includes:
One body; One drive unit is located in this body; One rotating shaft is articulated in this drive unit bottom, and turned by drive unit; The side face of this rotating shaft is provided with a circle tooth portion;
One support, the annular body portion with a hollow; This is set up in this body bottom, can be rotated and changes the position, angle;
One pallet, its central authorities are saturating empty; At least two rail grooves are located on the pallet along the radially setting of pallet, and this pallet is located at this body bottom, are concentric circles with this support;
Deng the pull part of number, be located in these rail grooves, and must be these parts and be connected of pulling respectively with this support along the slippage of rail groove in these rail grooves; At least one arc tooth portion is located at least one part the inner of pulling; When rotating this rotating disk, drive these parts of pulling synchronously along the displacement between open position and a closing position outside of rail groove;
This rotating shaft is extended through in this support and this pallet, and its tooth portion and these arc tooth portions are positioned at equal height;
When these parts of pulling were positioned at closing position, these arc tooth portion bridle joints were in this circle tooth portion of this rotating shaft; These pull part when outer tension position, and these arc tooth portions discharge this circle tooth portion.
2. the grinder that is easy to detachable grinding blade as claimed in claim 1, it is characterized in that: the body portion of this support number such as is provided with in the oblique guide groove of these parts of pulling, respectively this guide groove has a medial extremity and an outboard end, footpath in this body portion makes progress, and this medial extremity is than more close this body portion center of this outboard end; Deng the guide pillar of number, be located at respectively on this part of pulling, and be embedded in these guide grooves respectively in these parts of pulling.
3. the grinder that is easy to detachable grinding blade as claimed in claim 1 is characterized in that: respectively this part of pulling is provided with an oblique guide groove; Deng the guide pillar of number, be located at the body portion of this support with appropriate intervals, and be embedded in these guide grooves respectively in these parts of pulling.
4. the grinder that is easy to detachable grinding blade as claimed in claim 1 is characterized in that: an arc tooth portion is all established in these part the inners of pulling, and when these parts of pulling were closed, these tooth portions just formed the configuration of a circle.
5. the grinder that is easy to detachable grinding blade as claimed in claim 1, it is characterized in that: the inner of at least one part of pulling is not provided with arc tooth portion in these parts of pulling, when these parts of pulling are closed, this rotating shaft displacement can be passed in the inner that is not provided with this part of pulling of tooth portion, makes the tooth portion of this rotating shaft be provided with the part bridle joint of pulling of arc tooth portion.
6. the grinder that is easy to detachable grinding blade as claimed in claim 5 is characterized in that: the respectively the inner of this part of pulling that is not provided with tooth portion is invaginated type.
7. the grinder that is easy to detachable grinding blade as claimed in claim 1 is characterized in that: this body bottom is provided with a circle portion; This support and this pallet are positioned at this circle portion; Other includes: a rotating disk, and to be located at this circle portion periphery and to turn, this rotating disk connects this support, when rotating this rotating disk, can drive this support angular displacement.
8. the grinder that is easy to detachable grinding blade as claimed in claim 7 is characterized in that: the hollow part that is provided with predetermined number around this circle portion with appropriate intervals; This rotating disk is connected via these hollow parts with this support.
9. the grinder that is easy to detachable grinding blade as claimed in claim 8 is characterized in that: the body portion end face of this support is provided with number fixed number purpose foot rest with appropriate intervals, and these foot rests are extended through these hollow parts respectively and are connected in this rotating disk.
10. the grinder that is easy to detachable grinding blade as claimed in claim 7 is characterized in that: this circle portion side face is provided with two patterns; This rotating disk has at least one form, just is positioned at this two patterns part; This dial rotation is when diverse location, and this form just can manifest respectively this pattern.
11. the grinder that is easy to detachable grinding blade as claimed in claim 7 is characterized in that: this rotating disk is encircled to establish by the arc body of at least two tool predetermined arc length and is formed.
12. the grinder that is easy to detachable grinding blade as claimed in claim 1 is characterized in that: this rotating shaft is connected in this drive unit in the mode of off-centre; When these parts of pulling were closed, these formed circumference of arc tooth portion formed tangent circle with the off-centre of this rotating shaft formed circumference that rotatablely moves.
13. the grinder that is easy to detachable grinding blade as claimed in claim 1 is characterized in that: this pallet is fixedly arranged on this body bottom; This support is positioned at this pallet top.
14. the grinder that is easy to detachable grinding blade as claimed in claim 13 is characterized in that: this pallet end face is provided with at least one location division; The body portion of this support is provided with at least one recessed, and respectively this position point was in respectively should being recessed into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031478611A CN1532025A (en) | 2003-03-24 | 2003-06-27 | Grinder with easily detachable grinding sheet |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03121086 | 2003-03-24 | ||
| CN03121086.4 | 2003-03-24 | ||
| CNA031478611A CN1532025A (en) | 2003-03-24 | 2003-06-27 | Grinder with easily detachable grinding sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1532025A true CN1532025A (en) | 2004-09-29 |
Family
ID=34314792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031478611A Pending CN1532025A (en) | 2003-03-24 | 2003-06-27 | Grinder with easily detachable grinding sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1532025A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323760C (en) * | 2004-07-02 | 2007-07-04 | 吉生机械股份有限公司 | Grinder with easy detachable grinding disc |
| CN102161178A (en) * | 2010-02-24 | 2011-08-24 | 吉生机械股份有限公司 | Working piece dismounting structure of grinding machine |
| CN102729134A (en) * | 2012-07-21 | 2012-10-17 | 深圳市华测检测技术股份有限公司 | Portable automatic grinding and polishing equipment |
| CN103909435A (en) * | 2013-01-06 | 2014-07-09 | 吉生机械股份有限公司 | Cutting tool combination capable of being rapidly dismantled and installed |
-
2003
- 2003-06-27 CN CNA031478611A patent/CN1532025A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323760C (en) * | 2004-07-02 | 2007-07-04 | 吉生机械股份有限公司 | Grinder with easy detachable grinding disc |
| CN102161178A (en) * | 2010-02-24 | 2011-08-24 | 吉生机械股份有限公司 | Working piece dismounting structure of grinding machine |
| CN102161178B (en) * | 2010-02-24 | 2013-02-27 | 吉生机械股份有限公司 | Disassembly and assembly structure of the working piece of the grinding machine |
| CN102729134A (en) * | 2012-07-21 | 2012-10-17 | 深圳市华测检测技术股份有限公司 | Portable automatic grinding and polishing equipment |
| CN103909435A (en) * | 2013-01-06 | 2014-07-09 | 吉生机械股份有限公司 | Cutting tool combination capable of being rapidly dismantled and installed |
| CN103909435B (en) * | 2013-01-06 | 2016-06-08 | 吉生机械股份有限公司 | The cutting tool combination of fast demountable |
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