CN1089203A - Workpiece is connected to device on the process equipment - Google Patents
Workpiece is connected to device on the process equipment Download PDFInfo
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- CN1089203A CN1089203A CN 92102935 CN92102935A CN1089203A CN 1089203 A CN1089203 A CN 1089203A CN 92102935 CN92102935 CN 92102935 CN 92102935 A CN92102935 A CN 92102935A CN 1089203 A CN1089203 A CN 1089203A
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- connector
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- settling
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 229910000639 Spring steel Inorganic materials 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000003754 machining Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 208000004350 Strabismus Diseases 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
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Abstract
The invention provides and a kind ofly workpiece is connected to device on the process equipment with high accuracy.This device comprises first and second connectors of installing with one heart with respect to same central axis.An actuator is linked on one of two connectors.Have two drive pins of giving prominence to said actuator by its surface on another connector at least.Actuator is fixed on another connector with being transmitted moment of torsion, that is does not have on the connector of drive pin, and actuator also can be made of one with another connector.Actuator is provided with the aperture of the corresponding setting of drive pin on many and first connector.The outer surface of drive pin is to the small part taper shape, thereby when jockey engages, the limit of aperture local engagement or around the conical outer surface part of drive pin at least on the actuator.
Description
The present invention relates to a kind of workpiece is connected to device on the process equipment, particularly a kind of be suitable at a certain angle, temporarily be connected to workpiece jockey on the process equipment with concentricity.
When workpiece is fixed to process equipment (as, lathe, milling machine, grinding machine or miscellaneous equipment) when going up, the most important thing is that with respect to the pivot center of machine, workpiece processed on machine connects in point-device mode.Under the situation of using lathe, refer to the axis of rotation of chuck, in this case, the angle position of the said relatively axis of workpiece is not really important.But workpiece must keep high accuracy rating with respect to the concentricity of said axle.When using milling machine or milling apparatus, not only concentricity is important, and workpiece also must be noted with respect to the angle position of process equipment axis of rotation.
When making precise clamp, must meet the mach very high requirement of workpiece.Particularly, workpiece to be processed must be determined an accurate position on process equipment.
Known, consider the degree of eccentricity, with the pyramid type receiving member workpiece is connected to can reach on the process equipment and causes very little tolerance.But, the pollution of the chip that this pyramid type receiving member produces when being vulnerable to surrounding environment or process equipment work.The pyramid type receiving member that pollutes or reduce precision or can not unclamp owing to produce self-locking.In addition, workpiece can not be connected an accurate angle position with such pyramid type receiving member.
There is same situation in widely used chuck, and they also are easy to be polluted in machining process, and can not solve the problem that workpiece is connected an accurate angle position.
If workpiece needs very high machining accuracy, installing also, fixation workpiece to the connector on the process equipment at least also need be made with identical precision.This situation meets conical receiving member, and the chuck of lathe for example.Certainly, so high precision just needs high processing skill and high cost, is not disadvantageous especially if need with a large amount of such fixed connecting pieces.
Also have further problem not solve up to today, Here it is, and workpiece need be fixed on many different process equipments so that same workpiece is finished many manufacturing procedures.Like this, just must guarantee to make workpiece always keep a point-device angle and a concentric position with process equipment.For example, the shaping of the electrode tool of galvanic corrosion process equipment just needs to finish many process operations on many process equipments.Process this workpiece and must guarantee tolerance within plus-minus one thousandth millimeter, this just special hope is installed to next Working position with workpiece from a Working position very fast, and fixes workpiece with point-device angle position and concentricity.
One object of the present invention just provides a kind of jockey, has particularly a kind ofly eliminated above-mentioned shortcoming, the jockey that can become accurate angle and the concentric position to link to each other with process equipment with respect to the axis of rotation of process equipment workpiece.
Another object of the present invention provides one workpiece is fixed to jockey on the process equipment, it can promptly unload workpiece on first process equipment, and can under the required high positional precision of assurance said workpiece be connected on the process equipment of back.
Further object of the present invention provides a jockey, it be not subjected to substantially during workpiece processing contaminated influence.
The invention provides one workpiece is fixedly attached to jockey on the process equipment with transmitting moment of torsion, particularly workpiece to be machined can be connected on the process equipment with high precision.This jockey comprises first connector and second connector, and these two connectors are installed with one heart with respect to same central axis.Between two connectors, provide an actuator.On of two connectors, provide two drive pins that protrude towards said actuator from its surface at least.Actuator is fixed on another connector with being transmitted moment of torsion, does not promptly have on the connector of drive pin.
Actuator is provided with many apertures, they with said first connector on the corresponding arrangement of drive pin.The outer surface of drive pin to small part is a taper shape roughly, and when the jockey joint, when promptly first connector was connected on second connector, the edge of aperture roughly partly engaged or fit with the conical surface of drive pin at least in part on the actuator.
Basically, on first connector, provide first drive pin of installing with one heart and eccentric second drive pin installing to guarantee that second connector is enough with respect to the accurate angle and the concentric position of first connector.But, may preferably provide 4 eccentric drive pins of installing and the drive pin installed of center not.This can guarantee the position of qualification suitable between two connectors mutually equally.
There are many good embodiment to realize within the scope of the invention.Some examples are as follows:
Drive pin and the eccentric drive pin of settling settled at the center are installed on first connector.
The outer surface of centre-driven pin to small part has truncated cone.
The profile of the outer surface of centre-driven pin is, with first connector next-door neighbour's first foundation be first truncated cone, the second portion that is close to its end face is second truncated cone outer surface.
The subtended angle of the relevant truncated cone of said first foundation less than with the subtended angle of a relevant truncated cone of said top next-door neighbour's second portion.
First circular hole that settle at the center that is provided with on actuator, eccentric second hole of settling, a back hole comprise two with by two parallel edges of the radius centered of eccentric placement hole.
The diameter of the first drive pin foundation that the diameter of concentric holes is settled less than the center, but greater than the diameter of top surface.
The diameter of centre bore is equivalent to the mean value between the minimum and maximum value of the truncated cone platform outside of centre-driven pin.
Four eccentric drive pins of settling are installed on first connector, and they are symmetrical in the central axis of first connector and settle, and equidistant to each other.
On actuator, provide four eccentric holes of settling, each in them include two with pass through the parallel edge of actuator radius centered.
Eccentric drive pin or pin group of settling comprises two surface portions relative to each other, each in them by at least one with parallel by the radius centered of said first connector and form with respect to the axis plane inclined of jockey.
In two surfaces each is made up of two faces of the different angles that tilt with axis.
With angle of inclination, the angle of inclination of the top surface next-door neighbour's of said eccentric drive pin of settling or pin group first surface and the axis of jockey greater than the second surface that is close to the connector surface of base.
The width of the drive pin of settling less than off-centre with distance between two parallel edges in the hole of settling or the foundation of pin group by the parallel off-centre of the radius centered in said hole, but greater than it or their end face width, above-mentioned two width are in the orientation measurement vertical with described radius.
The size of said distance is will become between the width of big clinoplain from little clinoplain at foundation width and pin.
Said actuator is the spring steel disk.
Second connector is provided with the boss that ring-type, the concentric front surface from described second connector protrudes, and said actuator is fixed on the front surface of described boss.
Above-mentioned actuator be fixed on second connector on the surface of first connector, the position of the aperture setting of said second connector on actuator provides groove.
One in first or second connector is provided with at least 3 spacer pins that protruded by said connector surface, and when engaging with jockey, the front end face of said pin tightly withstands on the surface of another connector.
First connector is equipped with four eccentric first group of drive pin and four eccentric second group of drive pins settling of settling, first group pin all is symmetrical in the central axis of first connector and equidistantly is provided with each other, and the distance at second group of pin to the first connector center is greater than the distance at first group of pin to the first connector center.
Two good especially embodiment are illustrated below in further detail.
Below, the contrast accompanying drawing describes two embodiment of the present invention in detail, here:
Fig. 1 is first connector of first embodiment and the axial cutaway view of second connector, and two connectors are in the position of unclamping each other;
Fig. 2 is the axial cutaway view with the identical jockey of Fig. 1, and two connectors are in the position that is engaged with each other;
Fig. 3 is the part sectioned view along A-A line among Fig. 1;
Fig. 4 shows is part sectioned view along B-B line among Fig. 2;
Fig. 5 is the plane of first connector of first embodiment, and actuator is installed above it;
Fig. 6 is the plane of second connector of first embodiment;
Fig. 7 is the profile along C-C line among Fig. 6;
Fig. 8 is the part sectioned view along D-D line among Fig. 6;
Fig. 9 is the side partial cross-sectional of second embodiment of jockey of the present invention;
Figure 10 shows the top view of second connector of embodiment as shown in Figure 9;
Figure 11 shows the section along XI among Figure 10-XI line;
Figure 12 shows the plane of first connector of embodiment as shown in Figure 9;
Figure 13 is shown in the fragmentary cross-sectional view of a drive pin of first connector of Figure 12;
Figure 14 is the view identical with Figure 12 of modified first connector of embodiment as shown in Figure 9;
Figure 15 is the side view of the first connector drive pin shown in Figure 14.
Cutaway view as shown in Figure 1, first connector 1 is common collar plate shape structure, it has screwed hole of centre 2.The second connector figure is by shown in digital 3, and it also is the collar plate shape structure basically and has centre bore 4.Two connectors are installed mutually with one heart with respect to the central axis X by hole 2 and 4.Bolt 5 passes hole 4, and by being connected with connector 1 with the screw-threaded engagement in hole 2.5, two connectors 1 and 3 are axially being moved relative to each other by tighting a bolt.But shown in Figure 1 is that bolt 5 is not tightened, and two connectors 1 and 3 are in the position of unclamping each other.
From Fig. 1, particularly can further find out on the one hand, a drive pin 7 along center arrangement is arranged on connector 1 from Fig. 6-8, the drive pin 8 of a biasing is arranged on the other hand.Two pins just sell 7 and pin 8, protrude to actuator 6 from the connector surface 9 of connector 1.Conical external surface along the drive pin 7 of center arrangement comprises two parts, it is exactly a first 10, has first ligulate with the adjacent truncated cone shape of the front end face of the close connector 1 of pin 7, with second portion 11, second portion 11 has second ligulate of the truncated cone adjacent with the front end face of pin 7.By profile 7 as can be seen, the gradient of first 10 is less than the gradient of second portion 11.In other words, with the tapering of the part of pin 7 end faces 12 adjacency tapering greater than the part 11 of that follow and surface connector 19 adjacency.The two different reason will be described in detail in the back.
Being offset to drive pin 8 on the connector 1 with respect to central axis X comprises 13, two side surfaces of two side surfaces and is parallel to the radius of connector 1 and tilts with the central axis X of connector 1.In front end face 14 end regions of drive pin 8, two inclined-plane 13 further relative central axis X are formed slopely two other inclined-planes 15, and are equally also parallel with the radius of connector 1.
The annular boss 17 concentric that outside protrusion arranged on the surface 16 of second connector 3 with hole 4.Actuator 6 is bearing on the front end face of said boss 17, and is fixed thereon by bolt 18 with transmitting moment of torsion.As seen from Figure 1, at this, actuator 6 is installed with being spaced and is connected on second connector 3.
As seen from Figure 5, except being substantially the oblong opening 20 that off-centre is settled, also has a central opening 19 on the actuator 6.Oval mouthfuls 20 comprise the parallel side edges so 21 that two radiuses with the central axis X of jockey are arranged in parallel.Can find out further that from Fig. 1 the middle pit of the stomach 19 has such diameter, its limit partly engages with the part 10 with truncated cone shape ligulate surface of connector 1.Yet, be very easy to find out that the distance between two parallel edges 21 of oval mouthful 20 is suitable for the inclination flat side surface 13 of engages drive pin 8 by Fig. 3.
Describedly can understand easily by top, under the interaction of actuator 7 and opening 19, connector 3 by the interaction of drive pin 8 and opening 20, can guarantee the accurate angle position of connector 1 with respect to connector 3 with respect to connector 1 centrally aligned.
One spacer pin 22 is arranged on the connector 3, and its end front surface 23 outwards protrudes from the surface 16 of connector 3.Jockey engages by tightening screw 5, and the end front surface 23 of spacer pin 22 is close on the surface 9 of connector 1.Like this, just determined the parallel accuracy between connector 1 and 3 mutually.
Fig. 2 shows the bonding operation state of jockey.According to explanation the preceding, require two connectors 1 and 3 to locate relative to each other at three dimensions, this is by following realization:
Distance and parallel relation between two connectors 1 and 3 determine that by spacer pin 22 is set the front end face of pin is close on the surface 9 of connector 1.
Bigger angle of lateral parts inclination of drive pin that is to say that 11 parts of centrepin 7 and 15 parts of pin 8 tilt more, makes the connector 3 and the connector 1 that are supporting processed workpiece be easy to cooperate and engage.On the small house border, without any influence, unless the tolerance of opening 19 and 20 is in its lower limit, in view of the above, the edge of described opening engages with the sloping portion 11 and 15 of above-mentioned pin 7 and 8 for the normal function of jockey for 11 parts and 15 parts.
As seen from Figure 5, on actuator 6, be provided with a straight slit 24 perpendicular to central opening 19 and eccentric openings 20 lines.The setting of this seam 24 is guaranteed around the strain of the core of the actuator 6 of central opening irrelevant with any strain around the marginal portion of opening 20.Such two connectors 1 and 3 are assembled together mutually with very high angle position precision and concentricity.
Fig. 9 to 14 shows second embodiment according to jockey of the present invention, and in the example shown, first connector 25 links to each other with the connector that preparation is installed on the process equipment.Second connector 27 is for disc roughly and comprise actuator 28 on the face that is rigidly fixed in it.Jockey 29 is suitable for injecting in the opening 30 of connector and by the clamping device (not shown) and is fixedly clamped.
For clarity sake, Figure 10 shows the top plan view of having removed second connector 27 behind the installing and connecting apparatus 29.Actuator 28 is a square plate, and it is made by spring steel, and it is linked to each other with disc second connector 27 by four bolts 32, and bolt 32 serves as the spacer pin effect simultaneously, to guarantee the exactly parallel location of second connector 27 with respect to first connector 25.Actuator 28 has four oblong shaped orifices 33 of arranging corresponding to drive pin 31.As seen from Figure 11, on second connector 27, under aperture 33, have a little than bigger four grooves 34 of aperture 33 sizes.When drive pin entered in the aperture 33, these grooves made spring steel actuator 28 be able to axially producing strain.
The bottom schematic view that in Figure 12, shows first connector 25 among Fig. 9.Can clearly be seen that four drive pins 31 are with respect to first connector, 25 central axis symmetric arrays, and are equidistant between them.Similar with the eccentric drive pin 8 of first embodiment, they have the general conical section, and its first outer surface 36 tilts a little with respect to central axis M, and second surface is partly than tilting more in the first surface part.In other each side, the function of second embodiment of jockey of the present invention is identical with running with the function of first embodiment with running.
The remodeling of first connector of representing with code name 25a is shown among Figure 14.In this remodeling, provide two groups of drive pins, the central axis symmetry of just corresponding first group of drive pin 31a and same and the first connector 25a, the equidistant each other second group of drive pin 31b that arranges with the drive pin 31 of first connector 25.Yet the distance at the drive pin 31b distance first actuator 25a center is greater than the distance of drive pin 31a apart from the center.Like this, second connector of two different sizes can be connected with the second connector 25a, and everything depends on the size and the weight of the workpiece that links to each other with second connector.
Best, as shown in figure 15, two drive pins, just drive pin 31a and drive pin 31b are installed on the same pedestal.
A major advantage according to jockey of the present invention just is to have only a connector, promptly by the foregoing description connector of describing with drive pin 7 and 81 and the connector 25 with pin 31, need accurately process.Other connector, the also attached connector 3 thereon of actuator 6 that just has the spring steel disk that for example is axial elastically deformable, and connector 27 with actuator 28, can have sizable machining tolerance respectively, still can avoid the danger that relative positional accuracy reduces between connector 1 and 3 or 25 and 27.Only important thing is that requirement central opening 19 is very round, eccentric be provided with to open two lateral edges 21 of 20 very parallel mutually.In practice, this target is very easy to reach, particularly because the absolute value of distance is not really important between two parallel edges 21 of the absolute value of central opening 19 diameters and opening 20.
Claims (20)
1, a kind of workpiece is connected to device on the process equipment, it has first connector and second connector that mutual coaxial line is settled, one is that the actuator of rigidity links to each other with said second connector at peripheral direction, it is characterized in that, on first connector, have two at least from connecting the outstanding drive pin in surface, the outer surface of drive pin to small part is conical, actuator is axial resilient disk, it or it a part is fixed on second connector with being transmitted moment of torsion, and provide the hole of corresponding arrangement thereon with drive pin, the edge in said hole is at least partly around the external conical surface of drive pin, like this, when being installed to said second connector on said first connector, said cushion disk(-sc) is axially producing strain partly.
2, according to the device of claim 1, it is characterized in that, drive pin and the eccentric drive pin of settling settled at the center are installed on first connector.
According to the device of claim 2, it is characterized in that 3, the outer surface of centre-driven pin to small part has truncated cone.
According to the device of claim 3, it is characterized in that 4, the profile of the outer surface of centre-driven pin is, with first connector next-door neighbour's first foundation be first truncated cone, the second portion that is close to its end face is second truncated cone outer surface.
5, according to the device of claim 4, it is characterized in that, the subtended angle of the relevant truncated cone of said first foundation less than with the subtended angle of a relevant truncated cone of said top next-door neighbour's second portion.
6, according to the device of claim 2, it is characterized in that, first circular hole that settle at the center that is provided with on actuator, eccentric second hole of settling, a back hole comprise two with by two parallel edges of the radius centered of eccentric placement hole.
7, according to the device of claim 6, it is characterized in that, the diameter of the first drive pin foundation that the diameter of concentric holes is settled less than the center, but greater than the diameter of top surface.
According to the device of claim 1, it is characterized in that 8, the diameter of centre bore is equivalent to the mean value between the minimum and maximum value of the truncated cone platform outside of centre-driven pin.
According to the device of claim 1, it is characterized in that 9, four eccentric drive pins of settling are installed on first connector, and they are symmetrical in the central axis of first connector and settle, and equidistant to each other.
10, according to the device of claim 9, it is characterized in that, on actuator, provide four eccentric holes of settling, each in them include two with pass through the parallel edge of actuator radius centered.
11, according to the device of claim 2 or 9, it is characterized in that, eccentric drive pin or pin group of settling comprises two surface portions relative to each other, each in them by at least one with parallel by the radius centered of said first connector and form with respect to the axis plane inclined of jockey.
According to the device of claim 11, it is characterized in that 12, each in two surfaces is made up of two faces of the different angles that tilt with axis.
13, according to the device of claim 12, it is characterized in that, with angle of inclination, the angle of inclination of the top surface next-door neighbour's of said eccentric drive pin of settling or pin group first surface and the axis of jockey greater than the second surface that is close to the connector surface of base.
14, according to the device of claim 6 or 10, it is characterized in that, the width of the drive pin of settling less than off-centre with distance between two parallel edges in the hole of settling or the foundation of pin group by the parallel off-centre of the radius centered in said hole, but greater than it or their end face width, above-mentioned two width are in the orientation measurement vertical with described radius.
According to the device of claim 14, it is characterized in that 15, the size of said distance is between the width at the clinoplain place that will become big clinoplain from little clinoplain of foundation width and pin.
According to the device of above-mentioned one or more claims, it is characterized in that 16, said actuator is the spring steel disk.
According to the device of claim 2, it is characterized in that 17, second connector is provided with the boss that ring-type, the concentric front surface from described second connector protrudes, said actuator is fixed on the front surface of described boss.
18, according to the device of claim 1, it is characterized in that, above-mentioned actuator be fixed on second connector on the surface of first connector, the position of the aperture setting of said second connector on actuator provides groove.
19, according to the device of above-mentioned any one claim, it is characterized in that, one in first or second connector is provided with at least 3 spacer pins that protruded by said connector surface, and when engaging with jockey, the front end face of said pin tightly withstands on the surface of another connector.
20, according to the device of claim 1, it is characterized in that, first connector is equipped with four eccentric first group of drive pin and four eccentric second group of drive pins settling of settling, first group pin all is symmetrical in the central axis of first connector and equidistantly is provided with each other, and the distance at second group of pin to the first connector center is greater than the distance at first group of pin to the first connector center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92102935A CN1041500C (en) | 1992-03-24 | 1992-03-24 | A device for connecting a workpiece to a machining apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92102935A CN1041500C (en) | 1992-03-24 | 1992-03-24 | A device for connecting a workpiece to a machining apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1089203A true CN1089203A (en) | 1994-07-13 |
| CN1041500C CN1041500C (en) | 1999-01-06 |
Family
ID=4939939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92102935A Expired - Lifetime CN1041500C (en) | 1992-03-24 | 1992-03-24 | A device for connecting a workpiece to a machining apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041500C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700625B (en) * | 2009-11-14 | 2012-09-05 | 益阳橡胶塑料机械集团有限公司 | Tool for processing gear eccentric shaft vertical lathe |
| CN101704200B (en) * | 2009-09-25 | 2012-11-07 | 上海麦迅机床工具技术有限公司 | Resetting device using flexible positioning and rigid clamping in combination and positioning method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3436072A (en) * | 1965-09-14 | 1969-04-01 | Bert N Svenson | Self-adjusting workpiece clamp |
| JPH01222806A (en) * | 1988-02-29 | 1989-09-06 | Sanden Corp | Chuck device |
-
1992
- 1992-03-24 CN CN92102935A patent/CN1041500C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704200B (en) * | 2009-09-25 | 2012-11-07 | 上海麦迅机床工具技术有限公司 | Resetting device using flexible positioning and rigid clamping in combination and positioning method thereof |
| CN101700625B (en) * | 2009-11-14 | 2012-09-05 | 益阳橡胶塑料机械集团有限公司 | Tool for processing gear eccentric shaft vertical lathe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1041500C (en) | 1999-01-06 |
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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 | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120324 Granted publication date: 19990106 |