CN116044171A - Cast-in-situ concrete slab flatness automatic control device - Google Patents
Cast-in-situ concrete slab flatness automatic control device Download PDFInfo
- Publication number
- CN116044171A CN116044171A CN202310246992.5A CN202310246992A CN116044171A CN 116044171 A CN116044171 A CN 116044171A CN 202310246992 A CN202310246992 A CN 202310246992A CN 116044171 A CN116044171 A CN 116044171A
- Authority
- CN
- China
- Prior art keywords
- pinch roller
- cast
- flatness
- rod
- automatic control
- 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
Links
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 12
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000012790 confirmation Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 230000036544 posture Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/10—Devices for levelling, e.g. templates or boards
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses an automatic control device for flatness of a cast-in-situ concrete slab, and relates to the field of constructional engineering. The invention comprises a base and a bracket, wherein the bracket is fixedly arranged on the base, the end part of the bracket is connected with a cross rod, and the cross rod is connected with a pinch roller mechanism; the pinch roller mechanism can do horizontal reciprocating motion along the cross rod, and the pinch roller mechanism can do reciprocating motion along the vertical direction. The invention utilizes the automatically operated pinch roller mechanism to realize the automation of the adjustment of the flatness of the concrete plate, thereby improving the working efficiency of the adjustment work of the flatness of the concrete plate; meanwhile, through the infrared sensing device with the preset elevation position, the pinch roller can be fixed at the descending height, so that the elevation of the concrete plate is ensured, constructors do not need to calibrate the elevation of the concrete plate at any time, and the confirmation of the elevation of the concrete plate is more convenient.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to an automatic flatness control device for cast-in-situ concrete slabs.
Background
Because of the advantages of good structural integrity, durable structure, rapid construction and the like of the cast-in-place concrete structure, the structural form is widely applied in the current field of building engineering. In the cast-in-place concrete, if the cast-in-place concrete slab has the problem of larger flatness deviation, the subsequent house floor can be uneven, and extra manpower and material resources are required to be spent to level the convex or fill the concave, so that the flatness of the cast-in-place concrete slab is required to be controlled and adjusted in the cast-in-place concrete.
The traditional cast-in-situ concrete slab flatness adjustment mode is manually adjusted, a constructor measures the elevation of the concrete slab surface by using a tape measure, and then a scraper is used for scraping the concrete slab surface. Because the concrete slab surface is smaller with the ground, constructors need to use squatting postures and other lower postures in order to enable the sight to be flush with the tape measure when measuring the elevation, the condition that the sight cannot be flush with the tape measure still exists in measurement, certain errors still exist in the elevation of the measured concrete slab surface, and certain height difference still exists between the smoothed concrete slab surface and the ground.
Disclosure of Invention
The invention aims to provide an automatic control device for the flatness of cast-in-situ concrete slabs, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the automatic control device for the flatness of the cast-in-situ concrete slab comprises a base and a bracket, wherein the bracket is fixedly arranged on the base, the end part of the bracket is connected with a cross rod, and the cross rod is connected with a pinch roller mechanism; the pinch roller mechanism can do horizontal reciprocating motion along the cross rod, and the pinch roller mechanism can do reciprocating motion along the vertical direction.
The transverse rod is provided with a sliding rail, the sliding rail is connected with a sliding block in a sliding manner, and the pinch roller mechanism is fixedly connected with the sliding block; the number of the cross bars is two, the number of the sliding blocks is matched with the number of the cross bars, a movable rod is fixedly connected between the sliding blocks, an air cylinder used for driving the movable rod to reciprocate along the horizontal direction is arranged on one side of the support, and the end part of a piston rod of the air cylinder is fixedly connected with the middle part of the movable rod.
The pinch roller mechanism comprises a pinch roller and a lifting device, and the lifting device comprises a gear set and a lifting rod; the sliding block is fixedly provided with a servo motor for driving the gear set to rotate, and the lifting rod is provided with a rack meshed with the gear set; the pinch roller is rotationally connected with the end part of the lifting rod through a bearing.
The support is provided with an infrared sensing device for detecting the contact surface of the pinch roller and the cast-in-place concrete; the infrared sensing device is characterized in that a bulge with scale marks is arranged on the support, and the infrared sensing device is arranged on the bulge through a double-lug screw.
The support is provided with a control mechanism, a signal input end of the control mechanism is connected with the infrared sensing device, and a signal output end of the control mechanism is connected with the air cylinder and the servo motor respectively.
The pinch roller is an iron pinch roller or a steel pinch roller.
The beneficial effects of the invention are as follows:
(1) the automatic running pinch roller mechanism is utilized, so that the flatness adjustment of the concrete plate can be automated, and the working efficiency of the flatness adjustment work of the concrete plate is improved; meanwhile, through the infrared sensing device with the preset elevation position, the pinch roller can be fixed at the descending height, so that the elevation of the concrete plate is ensured, constructors do not need to calibrate the elevation of the concrete plate at any time, and the confirmation of the elevation of the concrete plate is more convenient.
(2) The pinch roller is adopted to carry out adjustment work of the flatness of the concrete plate, so that the flatness and smoothness of the concrete plate surface can be ensured while the elevation of the concrete plate is ensured, and the working quality of concrete pouring is ensured.
Drawings
FIG. 1 is a side view of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a top view of the present invention.
In the figure, 1, a base; 2. a bracket; 3. a cross bar; 4. a slide rail; 5. a slide block; 6. a moving rod; 7. a cylinder; 8. a pinch roller; 9. a gear set; 10. a lifting rod; 11. a servo motor; 12. a rack; 13. an infrared sensing device; 14. a protrusion; 15. binaural screws; 16. and a control mechanism.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
Referring to fig. 1 to 3, an embodiment of the present invention provides an automatic control device for flatness of a cast-in-situ concrete slab.
As shown in fig. 1, the automatic control device for the flatness of the cast-in-situ concrete slab comprises a base 1 and a bracket 2, wherein the bracket 2 is fixedly arranged on the base 1, one end part of the bracket 2 is connected with a cross rod 3, and the cross rod 3 is connected with a pinch roller mechanism; the pinch roller mechanism can do horizontal reciprocating motion along the cross rod 3, and the pinch roller mechanism can do reciprocating motion along the vertical direction.
As shown in fig. 2, the pinch roller mechanism comprises a pinch roller 8 and a lifting device, wherein the lifting device comprises a gear set 9 and a lifting rod 10; a servo motor 11 for driving the gear set 9 to rotate is fixedly arranged on the sliding block 5, and a rack 12 meshed with the gear set 9 is arranged on the lifting rod 10; the pinch roller 8 is rotatably connected with the end part of the lifting rod 10 through a bearing.
Because the height of the pinch roller 8 in the vertical direction is required to be kept unchanged all the time in the process of rolling the concrete slab surface by the reciprocating movement of the pinch roller 8 in the horizontal direction; therefore, a transmission mode in which the gear set 9 is meshed with the rack 12 and the lifting rod 10 does not slide in the vertical direction when the pressing wheel 8 moves in the horizontal direction after the lifting rod 10 moves up and down in the vertical direction is required.
It should be noted that this set of movements is performed separately from the telescopic movements of the piston rod of the cylinder 7, which will be mentioned below, without interfering with each other, avoiding the occurrence of uneven pressure exerted by the pinch roller 8 on each area of the concrete slab, possibly resulting from simultaneous movements of the two sets, thus causing undulation of the concrete slab, and further ensuring the flatness of the concrete slab.
As shown in fig. 3, a sliding rail 4 is arranged on the cross bar 3, a sliding block 5 is connected to the sliding rail 4 in a sliding manner, and the pinch roller mechanism is fixedly connected with the sliding block 5; the number of the cross bars 3 is two, the number of the sliding blocks 5 is matched with the number of the cross bars 3, a movable rod 6 is fixedly connected between the sliding blocks 5, an air cylinder 7 used for driving the movable rod 6 to reciprocate along the horizontal direction is arranged on one side of the support 2, and the end part of a piston rod of the air cylinder 7 is fixedly connected with the middle part of the movable rod 6.
The telescopic movement of the piston rod of the air cylinder 7 drives the movable rod 6 to reciprocate along the horizontal direction, and the sliding block 5 drives the pinch roller mechanism to reciprocate along the horizontal direction, so that the pinch roller 8 with the contact surface of the concrete slab surface lowered to the preset elevation can roll the concrete slab surface, the concrete higher than the elevation is extruded out from the gap between the brackets 2 in the rolling process, and the elevation of the concrete slab surface after rolling meets the preset requirement.
An infrared induction device 13 for detecting the contact surface of the pinch roller 8 and the cast-in-place concrete is arranged on the bracket 2; the bracket 2 is provided with a bulge 14 with scale marks, and the infrared sensing device 13 is arranged on the bulge 14 through a double-lug screw 15.
After the required elevation is determined, the infrared sensing device 13 is fastened and installed at the bulge 14 corresponding to the scale mark by utilizing the double-lug screw 15, so that the elevation of the contact surface of the pinch roller 8 and the concrete slab surface is always consistent when the pinch roller descends, and when a constructor transfers the concrete pouring device to another place with concrete pouring, the elevation does not need to be recalibrated like the traditional mode, and the working efficiency of concrete pouring work is improved.
The bracket 2 is provided with a control mechanism 16, a signal input end of the control mechanism 16 is connected with the infrared sensing device 13, and a signal output end of the control mechanism 16 is respectively connected with the air cylinder 7 and the servo motor 11.
The pinch roller 8 is an iron pinch roller 8 or a steel pinch roller 8; the surface chromium-plated iron or the steel alloy through quenching and grinding is used as the material of the pressing wheel 8, so that the surface of the pressing wheel 8 is wear-resistant and smooth, the smoothness of a concrete slab surface is ensured, the damage to the surface of the pressing wheel 8 caused by scraping and rubbing of the pressing wheel 8 by the material in concrete is reduced, and the service life of the concrete slab is ensured.
The working principle of the invention is as follows: after the invention is placed at the position to be poured with concrete, firstly, the infrared induction device 13 is fastened at the position corresponding to the scale mark of the bulge 14 according to the required elevation, and then the concrete is poured at the position to be poured with concrete until the concrete slab surface slightly exceeds the required elevation distance;
then, the invention is started, the gear group 9 is matched with the lifting rod 10 to enable the pinch roller 8 to descend until the infrared sensing device 13 detects the pinch roller 8, namely, the pinch roller 8 reaches the height set by elevation, after receiving feedback information of the infrared sensing device 13, the control mechanism 16 cuts off the power supply of the servo motor 11 and simultaneously turns on the power supply of the air cylinder 7, the piston rod of the air cylinder 7 pushes the moving rod 6, the moving rod 6 drives the sliding block 5 to horizontally reciprocate along the sliding rail 4, and the pinch roller mechanism fixedly connected with the sliding block 5 simultaneously reciprocates along the horizontal direction, so that the pinch roller 8 can roll the concrete slab surface;
in the rolling process, the superfluous concrete with the concrete slab surface higher than the elevation is slowly extruded to two sides by the pinch roller 8, after the rolling is finished, an instruction is sent to the control mechanism 16, the control mechanism 16 controls the lifting rod 10 to lift, the pinch roller 8 is gradually lifted and far away from the concrete slab surface, then constructors move away the concrete slab, and the superfluous concrete remained around the concrete slab surface is simply cleaned, so that the ending work can be finished.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (6)
1. The utility model provides a cast-in-place concrete slab roughness automatic control device, includes base and support, support fixed mounting is on the base, its characterized in that: the end part of the bracket is connected with a cross rod, and the cross rod is connected with a pinch roller mechanism; the pinch roller mechanism can do horizontal reciprocating motion along the cross rod, and the pinch roller mechanism can do reciprocating motion along the vertical direction.
2. The automatic control device for flatness of cast-in-situ concrete slabs according to claim 1, wherein: the transverse rod is provided with a sliding rail, the sliding rail is connected with a sliding block in a sliding manner, and the pinch roller mechanism is fixedly connected with the sliding block; the number of the cross bars is two, the number of the sliding blocks is matched with the number of the cross bars, a movable rod is fixedly connected between the sliding blocks, an air cylinder used for driving the movable rod to reciprocate along the horizontal direction is arranged on one side of the support, and the end part of a piston rod of the air cylinder is fixedly connected with the middle part of the movable rod.
3. The automatic control device for flatness of cast-in-situ concrete slabs according to claim 2, wherein: the pinch roller mechanism comprises a pinch roller and a lifting device, and the lifting device comprises a gear set and a lifting rod; the sliding block is fixedly provided with a servo motor for driving the gear set to rotate, and the lifting rod is provided with a rack meshed with the gear set; the pinch roller is rotationally connected with the end part of the lifting rod through a bearing.
4. A cast-in-place concrete slab flatness automatic control apparatus according to claim 3, characterized in that: the support is provided with an infrared sensing device for detecting the contact surface of the pinch roller and the cast-in-place concrete; the infrared sensing device is characterized in that a bulge with scale marks is arranged on the support, and the infrared sensing device is arranged on the bulge through a double-lug screw.
5. The automatic control device for flatness of cast-in-situ concrete slabs of claim 4, wherein: the support is provided with a control mechanism, a signal input end of the control mechanism is connected with the infrared sensing device, and a signal output end of the control mechanism is connected with the air cylinder and the servo motor respectively.
6. A cast-in-place concrete slab flatness automatic control apparatus according to claim 3, characterized in that: the pinch roller is an iron pinch roller or a steel pinch roller.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310246992.5A CN116044171A (en) | 2023-03-15 | 2023-03-15 | Cast-in-situ concrete slab flatness automatic control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310246992.5A CN116044171A (en) | 2023-03-15 | 2023-03-15 | Cast-in-situ concrete slab flatness automatic control device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN116044171A true CN116044171A (en) | 2023-05-02 |
Family
ID=86124003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202310246992.5A Pending CN116044171A (en) | 2023-03-15 | 2023-03-15 | Cast-in-situ concrete slab flatness automatic control device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN116044171A (en) |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202933420U (en) * | 2012-12-15 | 2013-05-15 | 高碧 | Infrared induction high jump stand |
CN206539031U (en) * | 2017-02-14 | 2017-10-03 | 中国建筑第八工程局有限公司 | Control the device of concrete slab thickness |
CN209686799U (en) * | 2018-12-27 | 2019-11-26 | 河南强耐新材股份有限公司 | A kind of gypsum base thick-layer auto-flowing floor construction fixed point leveling unit |
CN211572634U (en) * | 2019-12-02 | 2020-09-25 | 中建海峡建设发展有限公司 | Concrete pouring elevation control device |
CN212421590U (en) * | 2020-03-17 | 2021-01-29 | 豆玉秦 | Wood working is with planing device |
CN212562538U (en) * | 2020-04-08 | 2021-02-19 | 中国电建集团华东勘测设计研究院有限公司 | Flatness control device for concrete cast-in-situ floor |
US20210198851A1 (en) * | 2019-12-27 | 2021-07-01 | Charles Volney Bremerman | System, method, and apparatus for leveling concrete and similar materials |
CN113653300A (en) * | 2021-08-23 | 2021-11-16 | 江苏苏阳建设有限公司 | Efficient construction tool and construction method for concrete terrace |
CN214786091U (en) * | 2020-12-29 | 2021-11-19 | 云南永吉福商品混凝土有限公司 | Concrete paves and receives face instrument |
CN215671161U (en) * | 2021-06-11 | 2022-01-28 | 江苏筑港建设集团有限公司 | A energy-concerving and environment-protective concrete levels device for concrete placement |
CN114319879A (en) * | 2022-01-25 | 2022-04-12 | 中厦建设集团有限公司 | Cement ground of usefulness is built and is driven flat device |
-
2023
- 2023-03-15 CN CN202310246992.5A patent/CN116044171A/en active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202933420U (en) * | 2012-12-15 | 2013-05-15 | 高碧 | Infrared induction high jump stand |
CN206539031U (en) * | 2017-02-14 | 2017-10-03 | 中国建筑第八工程局有限公司 | Control the device of concrete slab thickness |
CN209686799U (en) * | 2018-12-27 | 2019-11-26 | 河南强耐新材股份有限公司 | A kind of gypsum base thick-layer auto-flowing floor construction fixed point leveling unit |
CN211572634U (en) * | 2019-12-02 | 2020-09-25 | 中建海峡建设发展有限公司 | Concrete pouring elevation control device |
US20210198851A1 (en) * | 2019-12-27 | 2021-07-01 | Charles Volney Bremerman | System, method, and apparatus for leveling concrete and similar materials |
CN212421590U (en) * | 2020-03-17 | 2021-01-29 | 豆玉秦 | Wood working is with planing device |
CN212562538U (en) * | 2020-04-08 | 2021-02-19 | 中国电建集团华东勘测设计研究院有限公司 | Flatness control device for concrete cast-in-situ floor |
CN214786091U (en) * | 2020-12-29 | 2021-11-19 | 云南永吉福商品混凝土有限公司 | Concrete paves and receives face instrument |
CN215671161U (en) * | 2021-06-11 | 2022-01-28 | 江苏筑港建设集团有限公司 | A energy-concerving and environment-protective concrete levels device for concrete placement |
CN113653300A (en) * | 2021-08-23 | 2021-11-16 | 江苏苏阳建设有限公司 | Efficient construction tool and construction method for concrete terrace |
CN114319879A (en) * | 2022-01-25 | 2022-04-12 | 中厦建设集团有限公司 | Cement ground of usefulness is built and is driven flat device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN113404325B (en) | Single-opening intelligent grouting joint filling machine for wall cracks and construction method | |
CN108104429B (en) | Indoor and outdoor decoration device | |
CN115962704B (en) | Device for efficiently measuring straightness of elevator guide rail and measuring method thereof | |
CN116044171A (en) | Cast-in-situ concrete slab flatness automatic control device | |
CN112087095A (en) | Device for adjusting center position of motor equipment | |
CN214831937U (en) | Positioning mechanism based on during installation of highway bridge prefabricated pier | |
CN211339273U (en) | Automatic dismounting device for horizontal beam of edge roller | |
CN214266208U (en) | Wall roughening machine | |
CN109226384B (en) | Full-automatic section bar bending machine | |
CN221325437U (en) | Roller external diameter measuring device | |
CN213647982U (en) | Integrated house component die with leveler | |
CN112392227B (en) | Indoor ground construction equipment for house decoration | |
CN110918805A (en) | Cylinder pusher | |
CN221505949U (en) | Template flatness detection equipment | |
CN211464291U (en) | Novel quick adjustment HGC jar off tracking mechanism | |
CN220599233U (en) | Auxiliary device for installing prefabricated balcony boards | |
CN221582817U (en) | Building steel construction cutting device | |
CN220446724U (en) | Precast concrete member's apparatus for producing | |
CN219340657U (en) | Automatic feeding structure of automatic three-coordinate measuring machine | |
CN216947891U (en) | Device for adjusting position in bridge beam slab construction | |
CN215865236U (en) | Vertical detection device for quality management of assembled concrete building | |
CN213997204U (en) | Cold-rolled steel strip transverse thickness measuring equipment | |
CN217151284U (en) | Novel plate thickness controller | |
CN213647949U (en) | Leveling device for integrated house component | |
CN212343546U (en) | Device for adjusting center position of motor equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |