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1. 发明专利

JPH11333701A METHOD AND DEVICE FOR POLISHING PLATE-SHAPED BODY 失效
公开(公告)号：JPH11333701A
公开(公告)日：1999-12-07
申请号：JP15124098
申请日：1998-06-01
申请人： ASAHI GLASS CO LTD
发明人： ISHIMURA KAZUHIKO , IHARA KOICHI , ITO YASUNORI , MARUYAMA NAOTSUYO
IPC分类号： B24B37/00 , B24B37/005 , B24B37/10 , B24B37/04
摘要： PROBLEM TO BE SOLVED: To prevent flaws from being easily generated on a plate-shaped body such as a workpiece as well as to restrain polishing capabilities from being deteriorated, by performing the abrasive resistance increasing and decreasing operation for increasing and decreasing the abrasive resistance during polishing. SOLUTION: A polishing device 10 is constituted of a polishing table 12, a polishing unit 14 and a controller 48 for controlling the polishing table 12 and the polishing unit 14, and a plate-shaped body 18 such as a glass plate as a workpiece is arranged between the polishing table 12 and a polishing disc 16 of the polishing unit 14. The plate-shaped body 18 is polished by supplying slurry-like polishing fluid 19 containing abrasives to a part between the plate-shaped body 18 and the polishing disc 16 and performing a relative motion while pressing the plate-shaped body 18 by the polishing disk 16. Programs for increasing or decreasing the supplying amount of the polishing fluid 19 are stored in a controller 48. Therefore, the polishing speed can be restrained from being decreased, and flaws are not easily generated on the plate-shaped body 18 as a workpiece.

2. 发明专利

JPH11236231A EDGE ROLL DEVICE FOR PRODUCING FLOAT GLASS 失效
公开(公告)号：JPH11236231A
公开(公告)日：1999-08-31
申请号：JP3885198
申请日：1998-02-20
申请人： ASAHI GLASS CO LTD
发明人： ISHIMURA KAZUHIKO , ANDO HIROSHI
IPC分类号： C03B18/06
摘要： PROBLEM TO BE SOLVED: To provide an edge roll device for producing float glass capable of improving the flatness of a glass ribbon. SOLUTION: This edge roll device for producing the float glass is constituted by installing the edge roll 24 in a metal bath forming the glass ribbon by floating molten glass in molten tin and pulls the glass ribbon in a direction of broadening the width of the glass ribbon by bringing the edge roll into contact with the edge of the glass ribbon and rotating the roll. Drive mechanisms, such as direct drive mechanism, friction drive mechanism, belt drive mechanism and planetary roller drive mechanism, free of speed fluctuations, exclusive of a gear speed reduction mechanism, are adopted for the drive mechanism to transmit the rotational driving force from a motor 28 to the edge roll.

3. 发明专利

JPH08225333A METHOD FOR CUTTING PLATE GLASS AND SYSTEM THEREFOR 失效
公开(公告)号：JPH08225333A
公开(公告)日：1996-09-03
申请号：JP3246195
申请日：1995-02-21
申请人： ASAHI GLASS CO LTD
发明人： ISHIMURA KAZUHIKO , NAGASAWA IKUO , MINE SHINYA , KANEKO SHIZUNORI
IPC分类号： C03B33/037
摘要： PURPOSE: To enable high-speed cutting of a plate glass and prevent the quality of the plate glass from accuracy drop-off by detecting the pressing force of a cutter during line cutting processing of the plate glass and by controlling the vertical movement of the cutter so as to follow the asperities on the surface of the plate glass by a pressurizing means. CONSTITUTION: A cutter 38 brought into contact with the side of a plate glass 18 is moved and firmly pressed on the glass 18 to conduct a line cutting processing of the glass 18. During the process, the pressing force of the cutter 38 is detected in a real-time fashion with the detective part 24 of a piezoelectric element, displacement sensor, acceleration sensor, acoustic emission sensor or thermosensor. The pressing force is inputted via an amplifier 44 into a processing section 26 and compared with the standard value; based on the result, the vertical movement of the cutter 38 is set and then inputted into a control section 28 to actuate the linear motor, electric magnet or air cylinder of a pressurizing means 22 to vertically move the cutter 38 so as to follow the asperities on the surface of the plate glass 18, and a line cutting processing for the plate glass 18 is conducted by keeping the pressing force constant.

4. 发明专利

JPH06114620A GRINDING WHEEL AND METHOD FOR PROCESSING DISC USING THE SAME 失效
公开(公告)号：JPH06114620A
公开(公告)日：1994-04-26
申请号：JP27029292
申请日：1992-10-08
申请人： ASAHI GLASS CO LTD
发明人： ISHIMURA KAZUHIKO , NAGASAWA IKUO
IPC分类号： B23B51/05 , B24D7/10 , B24D7/18 , B24D99/00 , C03B33/00 , B24D17/00
摘要： PURPOSE:To supply a grinding liquid sufficiently to a part to be ground by furnishing a cylindrical member which is provided at the periphery with a spiral groove either in the regular thread direction or the reverse thread direction and which is fitted at the bore with a spiral groove oriented oppositely to the periphery. CONSTITUTION:When the part to be ground of a work 10 deepens, the grinding liquid supplied to the bore of a cylindrical part 34 via an opening 32A provided in the shank 32 sinks along a spiral groove 34B formed in reverse thread direction at the bore of the cylindrical part 34, is introduced to the element part 36 of a grinding wheel 30, and led to the periphery of the cylindrical part 34. The grinding liquid led to the periphery of the cylindrical part 34 rises along a spiral groove 34A formed in regular threads on the periphery of the cylindrical part 34 and is exhausted from the surface of the work 10. Even if the part ground by the grinding wheel 30 deepens, it is possible to supply the grinding liquid to the part ground in satisfactory performance.

5. 发明专利

JPH05337798A 失效
公开(公告)号：JPH05337798A
公开(公告)日：1993-12-21
申请号：JP15209992
申请日：1992-06-11
申请人： ASAHI GLASS CO LTD
发明人： NAGASAWA IKUO , ISHIMURA KAZUHIKO
IPC分类号： B24B9/08
摘要： PURPOSE:To make chamfering of the inner and outer surfaces of a plate-shaped work and processing of it end face by setting the fast attaching force of a refrigerative chuck to a value which can generate fixation of the plate to a processing table when the processing takes place, and thereby pressing a tool to the inner or outer surface of the plate held on the processing table. CONSTITUTION:A liquid state medium 40 supplied to between a plate-shaped work 38 formed in a doughnut and a processing table 34 is solidified by a cooling means 32, and the plate 38 is held on the table 34 in the refrigerative chucked condition. A tool 36 is pressed to the inner or outer surface of the plate 38 in this condition, and chamfering of its inner surface and outer surface and also processing of the end face are performed. Therein the fast attaching force of the refrigerative chuck is set to a value which can generate fixation of the plate 38 to the processing table 34 when the plate 38 undergoes the processing.

6. 发明专利

JPH0316927A GLASS-CUTTING MACHINE 失效
公开(公告)号：JPH0316927A
公开(公告)日：1991-01-24
申请号：JP15001889
申请日：1989-06-13
申请人： ASAHI GLASS CO LTD
发明人： ISHIMURA KAZUHIKO , WATANABE ITSURO , TAMEI YASUO
IPC分类号： C03B33/023
摘要： PURPOSE:To improve the following performance of a cutter wheel taking advantage of castor effect and to maintain the cut face of a glass plate in sharp state by positioning the rotary axis of a cutter wheel at a position offset from the rotary axis of a cutter holder. CONSTITUTION:A glass plate 70 is placed on a table and an X-Y driving mechanism 2 to enable the driving of a carrier 6 in X-Y directions is placed above the table. The carrier 6 is provided with a cutting unit case 10 and a shaft 40 is rotatably supported by the cutting unit case 10. A cutter holder 56 is rotatably supported at the lower end of the shaft 40. A cutter wheel 60 is rotatably supported by the cutter holder 56 and the axis 60A of the rotary shaft of the cutter wheel 60 is placed in a state eccentric to and perpendicularly crossing with the rotary shaft axis 56B of the cutter holder 56. The glass plate 70 is cut in an arbitrary shape by pressing the cutter wheel 60 against the plate 70 and moving the wheel under rotation.

7. 发明专利

JP2000095527A REDUCED-PRESSURE DEFOAMING SYSTEM 失效
公开(公告)号：JP2000095527A
公开(公告)日：2000-04-04
申请号：JP26829098
申请日：1998-09-22
申请人： ASAHI GLASS CO LTD
发明人： INOUE SHIGEKUNI , ISHIMURA KAZUHIKO , TAKEI YUSUKE , UCHINO MITSUNARI
IPC分类号： C03B5/225
摘要： PROBLEM TO BE SOLVED: To stably operate a pressure reducing device and a reduced-pressure defoaming device used in the process for clarifying such a molten material as molten glass and molten metal by providing a reduced-pressure defoaming tank, a means for reducing the pressure of the tank and a means for removing the volatiles in a high-temp. gas sucked by the pressure reducing means. SOLUTION: A reduced-pressure defoaming tank 12 for defoaming a high- temp. molten material, a vacuum pump 44 connected to the tank 12 through a pipeline and sucking the high-temp. gas in the tank 12 through the pipeline to evacuate the tank 12 and a condenser 46 provided for the pipeline and removing the volatiles in the high-temp. gas in the tank 12 evacuated by the pump 44 are provided for the subject system. Further, a dust collector 52 is furnished for the pipeline between the condenser 46 and the vacuum pump 44. The volatiles in the high-temp. gas generated from the tank 12 are cooled below their dew point by the condenser 46 and removed, and hence the pipelines 34A and 38A, or the like, are never plugged with the volatiles.

8. 发明专利

JP2000006003A PRESSING METHOD FOR FLAT MEMBER AND PRESSING DEVICE 失效
公开(公告)号：JP2000006003A
公开(公告)日：2000-01-11
申请号：JP33709098
申请日：1998-11-27
申请人： ASAHI GLASS CO LTD
发明人： ISHIMURA KAZUHIKO , ITO YASUNORI , MARUYAMA NAOTSUYO
IPC分类号： B24B37/005 , B24B37/00
摘要： PROBLEM TO BE SOLVED: To uniform pressure distribution and to further selectively follow swell of a desired pitch length for a flat member having surface swell of various kinds of pitch by optimizing rigidity of a surface plate according to a pitch length of the flat member, performing multipoint pressure or surface pressure for the surface plate toward the flat member. SOLUTION: An abrasive surface plate 10 is connected with a supporting plate 14 via a plurality of air springs 12, 12, 12 disposed at fixed intervals L on the back face. The supporting plate 14 is fixed to a lower end part of a rotary shaft connected with a pressing cylinder and pressure from the pressing cylinder is transmitted as Fz1, Fz2, Fz3... to the abrasive surface plate 10 at a plurality of points via each air spring 12,.... By optimizing disposing interval (pressing point pitch) L of each air spring 12 and rigidity of the abrasive surface plate 10, uniform surface-pressing is performed and swell (projecting and recessing parts) of a target pitch length can be selectively and uniformly removed.

9. 发明专利

JPH09208230A STIRRING DEVICE FOR HIGH TEMPERATURE FUSED MATERIAL 失效
公开(公告)号：JPH09208230A
公开(公告)日：1997-08-12
申请号：JP1892296
申请日：1996-02-05
申请人： ASAHI GLASS CO LTD
发明人： ISHIMURA KAZUHIKO , KAWAGUCHI TOSHIYASU , UDA KOZO
IPC分类号： B01F7/16 , C03B5/187
摘要： PROBLEM TO BE SOLVED: To improve the homogeneity of a high temp. fused material by inserting a rotary shaft of a stirring member through the bottom of a vessel. SOLUTION: In a stirring device for the high temp. fused material, particularly a fused glass G, the rotary shaft 24 of a stirrer 12 is arranged so as to be inserted to a stirrer tube 10 from the bottom 11 of the stirrer tube 10 and the top thereof is immersed in the fused glass G. Then, the rotary shaft 24 is arranged at a position not in contact with the fluid boundary of the fused glass G, for example the boundary to outer air. As a result, the inhomogeneity of the fused glass G caused by the contact of the rotary shaft 24 to the interface with outer air is prevented. In such a case, a drain pan 34 is provided to store the low temp. fused glass G leaked from a gap between the rotary shaft 24 and a heater 32 to outside and is rotated with the rotary shaft 24.

10. 发明专利

JPH09156932A VACUUM DEGASSING AND APPARATUS THEREFOR 失效
公开(公告)号：JPH09156932A
公开(公告)日：1997-06-17
申请号：JP33610295
申请日：1995-11-30
申请人： ASAHI GLASS CO LTD
发明人： TAKESHITA SHINJI , ISHIMURA KAZUHIKO
IPC分类号： C03B5/225
摘要： PROBLEM TO BE SOLVED: To provide a vacuum degassing apparatus for molten glass capable of coping with a variation of a plate-making condition such as producing amount of glass product without changing clarifying conditions such as pressure, temperature and basis depth and also copping with a case required so as to vary the clarifying condition in relating to a problem of a product quality. SOLUTION: This vacuum degassing apparatus produces a glass product by introducing molten glass to a storing tank 1, a raising tube 2, a vacuum degassing tank 3, a lowering tube 4 and the storing tank 1, in turn, and a vertical lever of the vacuum degassing device can freely be changed by an elevating device.

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