CN100522482C - Rotary tool holding means for attaching tool - Google Patents
Rotary tool holding means for attaching tool Download PDFInfo
- Publication number
- CN100522482C CN100522482C CNB2005100778979A CN200510077897A CN100522482C CN 100522482 C CN100522482 C CN 100522482C CN B2005100778979 A CNB2005100778979 A CN B2005100778979A CN 200510077897 A CN200510077897 A CN 200510077897A CN 100522482 C CN100522482 C CN 100522482C
- Authority
- CN
- China
- Prior art keywords
- driving shaft
- tool mounting
- ring flange
- flange
- circumference
- 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
Links
Images
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
- 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
-
- 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
- B24B27/00—Other grinding machines or devices
- B24B27/06—Grinders for cutting-off
- B24B27/08—Grinders for cutting-off being portable
-
- 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
- B24B45/00—Means for securing grinding wheels on rotary arbors
- B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/16—Bushings; Mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/16—Bushings; Mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
- B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
- B27B5/32—Devices for securing circular saw blades to the saw spindle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Harvester Elements (AREA)
Abstract
The invention relates to a cutter clamp of a rotatable disk-shaped and rabbet jointed cutter used for a hand-held electric machine-tool, particularly for an angle grinder or a hand-held fretsaw machine, which has a driving device (16) comprising a drive shaft (17), a drive flange (18) which is used for claming the rabbet jointed cutter (12) and has no relative moving with the drive shaft, and a positioning collar (20) used for centering of the rabbet jointed cutter. In order to make the driving device (16) reach high wearing resistance and bear the high radial force from the rabbet jointed cutter in long term and without damage, and in order to make the manufacture techniques for the driving device (16) to be simplified, the drive flange (18) is manufactured as a planar disc-shaped flange (19), the collar (20) is manufactured as that the drive shaft (17) has a end part (171) with a larger diameter, the force transfer chain formed by the flange (19) and/ or the shape-matched end part are/is contactly fixed on the collar (20) of the driving device (17).
Description
Technical field
The present invention relates to a kind of tool mounting of rabbet joint type cutter of the disc rotation that is used for electronic hand held machine tool, particularly hand operated type angle grinding machine or hand operated type circular sawing machine.
Background technology
At the disclosed tool mounting (DE 101 36 459 A1) that is used for the rabbet joint type cutter (Einsatzwerkzeug) of hand operated type angle grinding machine, the driving flange that is the sintered part formation of step shape as diameter has an annular flange and two moulding, the axially extended axle collars on each end face of annular flange.On annular flange, constitute one and be used to clamp disc rabbet joint type cutter, the bearing-surface of cutting grinding wheel or polishing grinding wheel for example.From the axially extended axle collar of bearing-surface constitute as the centering axle collar that is used to make the centering of rabbet joint type cutter and for this reason with rest on annular flange on the hub form fit ground of disc rabbet joint type cutter cooperate.In service at machine, the centration axis rim bearing is subjected to the radial load that occurs on the rabbet joint type cutter.Be used for the driving flange shifted onto on the driving shaft and with its nothing at the axially extended sleeve axle collar of a side of the axle collar of feeling relieved dorsad of annular flange and be fixed on the driving shaft with relatively rotating, for example by the pressure suit or put into a fixed card ring.What can select is, this sleeve axle collar (Aufsteckbund) also can connect by groove/key and be connected with driving shaft and prevent to move axially with the screw of taking the lead in the end face that is screwed into driving shaft.In annular flange, offer axial groove, tool mounting pass this groove and the rabbet joint type cutter shaft to the bearing-surface that radially is fixed on annular flange on.Described tool mounting have a thin plate (B1echplatte) that has a clamping leg that axially stretches out, wavy spring, one have the driver plate of the bayonet lock that axially stretches out and one can axial pre-tensioned spring element.In centering axle collar that can be pressed into hollow cylinder and by latch the unlocking knob of tool mounting effect is used for the loosening cutter anchor clamps.
Summary of the invention
According to the present invention, a kind of electronic hand held machine tool that is used for has been proposed, the tool mounting of the rabbet joint type cutter of the rotation of hand operated type angle grinding machine or hand operated type circular sawing machine particularly, has a drive unit, this drive unit has a driving shaft, one is not had having of connecting therewith with relatively rotating and is used to clamp that the driving flange of bearing-surface of rabbet joint type cutter and one extends vertically from this bearing-surface, be used for rabbet joint type cutter centering axle collar to the center on this bearing-surface, wherein, drive the ring flange that flange is constituted as the plane, and the centering axle collar is constituted as the bigger end segments of diameter of driving shaft; And ring flange rests under the situation of centering on the axle collar at end face and is fixed on the driving shaft with constituting power transmission chain and/or form fit.
The axle collar is transferred on the power transmission shaft by feeling relieved, the clamping function of drive unit and centering function are distributed to driving shaft and are driven flange, the centering axle collar of the radial load that produces in the time of can bearing the work of rabbet joint type cutter can than the drive unit of openly knowing because its multistage scalariform geometry and can only be high and wear-resisting as the driving flange load that sintered part is made.This driving shaft is by wear-resisting so-called pressed-steel, for example as the extrusion manufacturing, and the driving flange in known drive unit can only be by common particle, mushy sintered steel manufacturing, and the load property of the centering axle collar is obviously lower.Ring flange has simply, the two sides is flat geometry, can be used as simple finish turning spare or stamping parts by the pressed-steel manufacturing or as the sintered part manufacturing of moulding.After forming process, do not need to cut back processing.Generally speaking, can obviously reduce the manufacturing expense of drive unit from the ring flange that drives flange and transfer on the driving shaft and will drive flange configuration Cheng Ping by the axle collar of will feeling relieved according to the present invention.Do not have between driving shaft and ring flange in relative rotation and connect when possible inefficacy occurring, the latter can not throw off with machine, but because it rests on the annular end face of the centering axle collar is retained on the machine, has so just avoided the injury user of service reliably.Can adopt multiple mode realize transmitting torque between driving shaft and the ring flange, do not have in relative rotation and connect.
According to a favourable form of implementation of the present invention, the centering axle collar has one from its columniform groove of offering of end face freely, driving shaft has some axial grooves at about same circumference angle that preferably stagger on circumference, these grooves pass and lead to freely described groove below ring flange.The latch of unlocking knob can be passed these axial grooves, and unlocking knob must enter in the centration axis annular groove in order to unclamp the tool mounting that the rabbet joint type cutter is fixed on the ring flange.
According to an advantageous forms of implementation of the present invention, on the inward flange of the annular of ring flange, be configured with the projection at some radially-protruding, the same about same circumference angles that interlace with axial groove, they cooperate with axial groove form fit ground in direction of rotation, by this, described axial groove can be advantageously used in the nothing that forms between driving shaft and the ring flange simultaneously and connect in relative rotation.Here, the radial height of described projection is significantly smaller than the degree of depth of axial groove, enters axial groove so that the latch of unlocking knob can be passed left free space.
Advantageously, driving shaft and ring flange a side of the bearing-surface that is used for the rabbet joint type cutter dorsad by one around weld seam interconnect.
Advantageously, driving shaft and ring flange interconnect by the material projection that suppresses in a side of the bearing-surface that is used for the rabbet joint type cutter dorsad.
Advantageously, the ring flange pressure sleeve is contained on the driving shaft or is bonded on the driving shaft.
Advantageously, in ring flange, be provided with a radial hole, in driving shaft, be provided with a radial blind holes; Place to a form fit transverse bolt in the radial hole to insert in the blind hole with its end side form fit ground.
Advantageously, the radial height of described projection is significantly smaller than the groove depth of axial groove.
Advantageously, ring flange as finish turning spare or stamping parts by the pressed-steel manufacturing or as the sintered part manufacturing of moulding.
Advantageously, driving shaft is by the abrasion-resistant stee manufacturing.
Description of drawings
Describe the present invention in detail by means of the embodiment shown in the figure below.Shown in the figure:
Fig. 1 has schematically shown the vertical view of hand operated type angle grinding machine,
The tool mounting exploded view rabbet joint type cutter, that have a drive unit that is used for Fig. 1 angle grinding machine that Fig. 2 partly illustrates as cutting grinding wheel or polishing grinding wheel formation,
Fig. 3 is the longitudinal sectional drawing of Fig. 2 drive unit,
Fig. 4 is the longitudinal sectional drawing after the drive unit modification among the Fig. 2 that partly illustrates.
The specific embodiment
Fig. 1 shows the vertical view as the angle grinding machine of electronic hand held machine tool embodiment.This angle grinding machine has a housing 11; integrated a motor that does not illustrate and a bevel gearing in this housing; this angle grinding machine also has one by the disc of motor-driven, rotation, be the rabbet joint type cutter 12 of cutting grinding wheel or polishing grinding wheel form here, and this rabbet joint type cutter is partly covered by a protective cover 13.This angle grinding machine can be integrated in the first in command 14 on the housing 11, that extend at longitudinal direction and be fixed on the second in command's 15 operations on the housing 11, that extend perpendicular to longitudinal direction by one in the scope of rabbet joint type cutter 12 by one.
Rabbet joint type cutter 12 is received in the tool mounting, this tool mounting have a drive unit that in Fig. 2 to 4, illustrates 16 and here do not illustrate, be used for rabbet joint type cutter 12 is fixed on tool mounting on the drive unit 16.Drive unit 16 comprises that a driving shaft 17 and one and this driving shaft do not have and drives flange 18 in relative rotation.The output shaft rigid attachment of driving shaft 17 and bevel gearing or be exactly the latter itself.Drive flange 18 and be constituted as ring flange 19 plane, annular, its as simple finish turning spare or stamping parts by the pressed-steel manufacturing or as the sintered part manufacturing of moulding.The ring surface towards rabbet joint type cutter 12 of described ring flange 19 has constituted the bearing-surface 191 that is used for rabbet joint type cutter 12, and the rabbet joint type cutter 12 with a hub is placed on the described bearing-surface and by the tool mounting that acts on this hub and fixes to clamp on ring flange 19.In DE10136459A1, introduced an example of the discoidal rabbet joint type cutter of possible structure with hub and tool mounting.
The hub that rests on the ring flange 19 of rabbet joint type cutter 12 is felt relieved on bearing-surface 191.Be provided with a centering axle collar 20, its hub form fit ground pushing sleeve of rabbet joint type cutter 12 usefulness is to the described centering axle collar for this reason.When 12 rotations of rabbet joint type cutter, the radial load that the centering axle collar 20 bears rabbet joint type cutter 12.
The end segments 171 that the diameter that this centering axle collar 20 is constituted as driving shaft 17 is bigger.Described driving shaft 17 is to be made by wear-resisting what is called " compacting " steel as extrusion for example, so just can bear the radial load of the rabbet joint type cutter 12 of high rotating speed rotation for a long time, and it is small to wear and tear.In the centering axle collar 20, offer a columniform groove 22 from the free end face of driving shaft 17.On the circumference of driving shaft 17, process three axial grooves 23 that the ground, about same circumference angle that staggers mutually is provided with, in Fig. 2, can only see wherein two.Described axial groove 23 extends through below ring flange 19 on the one hand, so that lead to groove 22, on the shaft part 172 to 174 that reduces, described shaft part is directly followed the end segments of the formation centering axle collar 20 of driving shaft 17 with extending in three diameter steps of branch on the other hand.Axial groove 23 same opening wide are led to the end of described last shaft part 174.
Described ring flange 19 is shifted onto on the driving shaft 17 from the bottom of the driving shaft shown in Fig. 2 17, up to its inner ring surface 192 place and the shaft part 172 of the axle collar 20 direct neighbors of feeling relieved on and make its end face that constitutes bearing-surface 191 of ring flange 19 usefulness lean against the end segments 171 of driving shaft 17 and the annular transition shoulder between the shaft part 172 to go up till.On this position, ring flange 19 constitutes the power transmission chains and/or form fit ground is connected with driving shaft 17, so that driving shaft 17 can be with transmission of torque to ring flange 19, thereby passes to the rabbet joint type cutter 12 that is fixed on the ring flange 19.
As seeing in Fig. 3 profile, there by one around the nothing that formed between driving shaft 17 and the ring flange 19 of weld seam 24 connect in relative rotation, the contact edge along ring flange 19 and shaft part 173 stretches this weld seam in the bottom surface of the bearing-surface 191 of ring flange 19 dorsad.
In the embodiment of Fig. 4, nothing between ring flange 19 and the driving shaft 17 connects in relative rotation by at least one transverse bolt 25 and forms, this transverse bolt form fit ground on the one hand inserts radial hole 26 in ring flange 19, on the other hand form fit ground insert in the shaft part 172 one with the concentric blind hole 27 of radial hole 26 in.Can select be or what can add is that the nothing between ring flange 19 and driving shaft 17 connects in relative rotation also can suppress by means of material and forms, as Fig. 4 additionally illustrates.In this case, suppress a material projection 28 from the shaft part 173 of driving shaft 17, it is pressed on the bottom surface of bearing-surface dorsad 191 of ring flange 19.
Another possibility of the connection of the formation power transmission chain between ring flange 19 and the driving shaft 17 is, ring flange 19 pressure sleeves is installed on the shaft part 172 of driving shaft 17.In order to guarantee to connect not only transmitting torque, also between ring flange 19 and driving shaft 17, formed the connection of form fit on direction of rotation in addition by the power transmission that compresses.Go out as shown in Figure 2 like that, for this reason ring flange 19 around inner ring surface 192 on be provided with some radially-protruding projections 29, they have and the same identical anglec of rotation spacing of axial groove 23 on the driving shaft 17 mutually.When shifting onto ring flange 19 on the driving shaft 17, projection 29 the direction of rotation form fit be engaged in the axial groove 23.The radial height of projection 29 is significantly smaller than the groove depth of axial groove 23, like this, although the connection of form fit between ring flange 19 and driving shaft 17, a but also left free space in axial groove 23, the latch of unlocking knob can be passed this free space from the groove 23 the centering axle collar 20, for release rabbet joint type cutter 12, unlocking knob inserts in the groove 22 of the centering axle collar 20.
Claims (13)
1, the tool mounting of rabbet joint type cutter (12) that is used for the rotation of electronic hand held machine tool, has a drive unit (16), this drive unit have a driving shaft (17), one and this driving shaft do not have the driving flange (18) that is connected and one with the bearing-surface (191) that is used to clamp rabbet joint type cutter (12) with relatively rotating that extend vertically from this bearing-surface (191), be used for rabbet joint type cutter (12) and go up the centering axle collar (20) the center at this bearing-surface (191)
It is characterized by,
Drive the ring flange (19) that flange (18) is constituted as the plane, and the centering axle collar (20) is constituted as the bigger end segments (171) of diameter of driving shaft (17); And ring flange (19) is fixed on the driving shaft (17) under end face rests on situation in the centering axle collar (20) with constituting power transmission chain and/or form fit.
2, according to the described tool mounting of claim 1,
It is characterized by,
Driving shaft (17) and ring flange (19) a side of the bearing-surface that is used for rabbet joint type cutter (12) dorsad (191) by one around weld seam (24) interconnect.
3, according to the described tool mounting of claim 1,
It is characterized by,
Driving shaft (17) and ring flange (19) interconnect by the material projection (28) that suppresses in a side of the bearing-surface that is used for rabbet joint type cutter (12) dorsad (191).
4, according to the described tool mounting of claim 1,
It is characterized by,
Ring flange (19) pressure sleeve is contained in driving shaft (17) and goes up or be bonded on the driving shaft (17).
5, according to the described tool mounting of claim 1,
It is characterized by,
In ring flange (19), be provided with a radial hole (26), in driving shaft (17), be provided with a radial blind holes (27); Place to a form fit transverse bolt (25) in the radial hole (26) to insert in the blind hole (27) with its end side form fit ground.
6, according to the described tool mounting of one of claim 1 to 5,
It is characterized by,
The centering axle collar (20) has a columniform groove (22) of offering from its free end face; Driving shaft (17) has the axial groove (23) of some angles of circumference that stagger on circumference, they pass below ring flange (19) and extend in the described groove (22) always.
7, according to the described tool mounting of one of claim 1 to 5,
It is characterized by,
Ring flange (19) edge within it has that some are radially-protruding, the projection of the angle of circumference that staggers (29), and their angle of circumference that staggers is same as the angle of circumference that staggers that is positioned at the axial groove (23) on driving shaft (17) circumference; Described projection (29) is constructed for being coupled to form fit in the axial groove (23) on direction of rotation.
8, according to the described tool mounting of claim 7,
It is characterized by,
The radial height of described projection (29) is significantly smaller than the groove depth of axial groove (23).
9, according to the described tool mounting of one of claim 1 to 5,
It is characterized by,
Ring flange (19) as finish turning spare or stamping parts by the pressed-steel manufacturing or as the sintered part manufacturing of moulding.
10, according to the described tool mounting of one of claim 1 to 5,
It is characterized by,
Driving shaft (17) is by the abrasion-resistant stee manufacturing.
11, according to the described tool mounting of claim 1,
It is characterized by,
This electronic hand held machine tool is hand operated type angle grinding machine or hand operated type circular sawing machine.
12, according to the described tool mounting of claim 6,
It is characterized by,
The described axial groove approximately identical angle of circumference that on the circumference of driving shaft, staggers.
13, according to the described tool mounting of claim 7,
It is characterized by,
The angle of circumference that described projection staggers is approximately identical.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004028529A DE102004028529A1 (en) | 2004-06-11 | 2004-06-11 | Tool receiving device for an insert tool |
| DE102004028529.2 | 2004-06-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1706596A CN1706596A (en) | 2005-12-14 |
| CN100522482C true CN100522482C (en) | 2009-08-05 |
Family
ID=34854148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100778979A Expired - Fee Related CN100522482C (en) | 2004-06-11 | 2005-06-13 | Rotary tool holding means for attaching tool |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN100522482C (en) |
| DE (1) | DE102004028529A1 (en) |
| FR (1) | FR2871401B1 (en) |
| GB (1) | GB2414947B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT510920B1 (en) * | 2010-12-15 | 2014-01-15 | Gissing Gerhard | DEVICE COMPRISING A ROTATING DRIVEN TOOL AND A TENSIONING ELEMENT |
| DE102011005821A1 (en) * | 2011-03-18 | 2012-09-20 | Robert Bosch Gmbh | Tool clamping device |
| DE102013216516B4 (en) * | 2013-08-21 | 2024-09-19 | Robert Bosch Gmbh | Hand tool machine tool holder |
| CN105916647B (en) * | 2013-11-25 | 2018-11-16 | 罗伯特·博世有限公司 | Tool-free bolt system for saw blade |
| CN103659115B (en) * | 2013-11-29 | 2015-09-30 | 东莞市俊知自动机械有限公司 | There is the saw blade carrying clamping device of automatic centering |
| DE102017213668A1 (en) | 2016-08-22 | 2018-02-22 | Robert Bosch Gmbh | machine tool |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706386A (en) * | 1986-08-28 | 1987-11-17 | Wiley Edward R | Quick change mechanism for diamond arbor circular saw blades and other spinning disc devices |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29612231U1 (en) * | 1996-07-13 | 1996-09-12 | Atlas Copco Elektrowerkzeuge Gmbh, 71364 Winnenden | Clamping device for fixing a tool |
| DE10136459A1 (en) * | 2001-07-26 | 2003-02-13 | Bosch Gmbh Robert | System with implement holder, especially grinding disc has detent movably mounted against spring force, with hub ad axial protuberance |
| DE10222292A1 (en) * | 2002-05-18 | 2003-12-04 | Bosch Gmbh Robert | System with a tool holder |
-
2004
- 2004-06-11 DE DE102004028529A patent/DE102004028529A1/en not_active Withdrawn
-
2005
- 2005-06-07 FR FR0551510A patent/FR2871401B1/en not_active Expired - Fee Related
- 2005-06-09 GB GB0511752A patent/GB2414947B/en not_active Expired - Fee Related
- 2005-06-13 CN CNB2005100778979A patent/CN100522482C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706386A (en) * | 1986-08-28 | 1987-11-17 | Wiley Edward R | Quick change mechanism for diamond arbor circular saw blades and other spinning disc devices |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2871401A1 (en) | 2005-12-16 |
| GB0511752D0 (en) | 2005-07-20 |
| GB2414947A (en) | 2005-12-14 |
| CN1706596A (en) | 2005-12-14 |
| DE102004028529A1 (en) | 2006-01-26 |
| FR2871401B1 (en) | 2008-04-04 |
| GB2414947B (en) | 2007-05-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20100613 |