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31. 发明专利

JPH0337127A CUTTING OF PLATE GLASS AND DEVICE THEREFOR 失效
公开(公告)号：JPH0337127A
公开(公告)日：1991-02-18
申请号：JP17164389
申请日：1989-07-03
申请人： ASAHI GLASS CO LTD
发明人： ISHIMURA KAZUHIKO , WATANABE ITSURO , MORIGUCHI YOSHIO
IPC分类号： B26F3/00 , B23Q11/10 , C03B33/023
摘要： PURPOSE:To prevent flaws on the surface of glass plate during cutting of plate glass by placing plate glass on a table laid in water, making a cutting line on the plate glass, generating a water flow on the surface of the plate glass and removing produced glass powder. CONSTITUTION:A table 66 of a plate glass cutter is set in a water storage bath 17, the water storage bath 17 is charged with water by driving a pump 36 and plate glass 49 is placed on the table 66. Then a solenoid valve 48 is operated by driving the pump 36, water is sucked from small holes of the table 66 through a water suction pipe 47 and the plate glass 49 is adsorbed on the table 66. Then water is jetted from a nozzle 34A, an X-Y moving device 50 is operated and a cutter 56 is transferred while making water flow in the direction from a side plate 18A in the water bath 18 to a dividing plate 26 to make a cutting line on the glass plate 49. In the operation, showering water is sprayed from a shower inlet 42 upon the surface of the plate glass 49. Consequently, glass powder occurring during making the cutting line is washed away by water and flaws on the surface of the plate glass 49 during cutting are prevented to give high quality plate glass 49.

32. 发明专利

JPH0333020A REDUCED-PRESSURE DEFOAMING DEVICE 失效
公开(公告)号：JPH0333020A
公开(公告)日：1991-02-13
申请号：JP16382289
申请日：1989-06-28
申请人： ASAHI GLASS CO LTD
发明人： ISHIMURA KAZUHIKO , UNO TAKASHI , TAKESHITA SHINJI
IPC分类号： C03B5/20 , C03B5/225
摘要： PURPOSE:To effectively prevent the buckling of the riser and downcomer for transferring a high temp. molten material in the reduced-pressure defoaming device for removing bubbles in a high-temp. molten material such as molten glass by providing a flexible seal member at a specified position. CONSTITUTION:The high-temp. molten material G in a melting tank 1 is introduced into a reduced-pressure defoaming tank 12 in a vacuum housing 11 through a riser 13 made of noble metal and defoamed. The defoamed material G is then transferred to a forming furnace 7 in the succeeding stage through a downcomer 14 made of noble metal. In this case, the gaps between the lower parts of the riser 13 and downcomer 14 and the lower ends of the casings 15 and 16 covering the riser 13 and downcomer 14 are closed by a flexible seal member 20 to control the deflection of the member 20 when the riser 13 and downcomer 14 are thermally expanded in the steady state. Consequently, even if the riser 13 and downcomer 14 are thermally expanded, the deformation due to thermal expansion is effectively absorbed by the member 20.

33. 发明专利

JPH02221134A METHOD AND EQUIPMENT FOR CUTTING GLASS 失效
公开(公告)号：JPH02221134A
公开(公告)日：1990-09-04
申请号：JP3987689
申请日：1989-02-20
申请人： ASAHI GLASS CO LTD , HATAMURA YOTARO
发明人： HATAMURA YOTARO , ISHIMURA KAZUHIKO , WATANABE ITSURO
IPC分类号： C03B33/037
摘要： PURPOSE:To uniformly hold a cutting face and to prevent a crack and to enhance yield by providing a cutter which is followed to the unevennesses on the surface of glass and vertically moved and cutting glass at high velocity while holding the pressing force of the cutter uniform. CONSTITUTION:The pressing force of a cutter 29 in course of cutting glass 70 is detected at real time by utilizing a strain gauge 34A. A motor 20 is controlled on the basis of this detected signal and thereby the pressing force of the cutter 29 is controlled. Glass 70 is cut by vertically moving the cutter 29 so that the cutter is followed to the unevennesses on the surface of glass 70.

34. 发明专利

JPH09109021A THIN PLATE POLISHING METHOD 失效
公开(公告)号：JPH09109021A
公开(公告)日：1997-04-28
申请号：JP27547095
申请日：1995-10-24
申请人： ASAHI GLASS CO LTD
发明人： SUZUKI TOMOHIRO , MARUYAMA NAOTSUYO , ISHIMURA KAZUHIKO , OZAWA YOICHI
IPC分类号： B24B37/04 , B24B37/30 , C03C19/00
摘要： PROBLEM TO BE SOLVED: To polish to remove micro corrugation generated on the polished face of a thin plate in a short time. SOLUTION: The polished face 16 of a glass plate 10 is sucked by a suction plate 18 to straighten the warp part of the polished face 16 into almost flat shape. Setting resin 26 is injected to a back face 24 of the glass plate 10 to bond a base plate 28. The glass plate 10 is removed from the suction plate 18, and the polished face 16 is pressed to abrasive cloth 30 to polish and remove micro corrugation 14 of the polished face 16.

35. 发明专利

JPH08109983A REINFORCING STRUCTURE OF CERAMIC PIPE 失效
公开(公告)号：JPH08109983A
公开(公告)日：1996-04-30
申请号：JP24523794
申请日：1994-10-11
申请人： ASAHI GLASS CO LTD
发明人： AZUMA KATSUMI , ISHIMURA KAZUHIKO , SAITO TSUNEHIRO
IPC分类号： F16L9/10 , B01D39/20 , B01D46/24 , C04B38/00
摘要： PURPOSE: To reduce the generated tensile stress and reinforce the strength of a ceramic pipe by fitting a metal ring on the outer periphery of the trunk body part of the ceramic pipe, through an expansion mat, and applying the compressive stress on the outer peripheral surface of the ceramic pipe by the expansion force of the expansion mat. CONSTITUTION: As for the dust removing operation in which the dust containing gas having a high pressure and a high temperature is dust-removed, a pressure difference is generated between the inside and outside of a ceramic pipe 10. Accordingly, on the ceramic pipe 10, a tensile stress is generated in the circumferential direction of the ceramic pipe 10. Then, as the structure for fitting a metal ring 16 on the outer periphery of the trunk body part of the ceramic pipe 10 through an expansion mat 12, is applied the compressive stress onto the outer peripheral surface of the ceramic pipe 10 by the expansion force of the expansion mat 12. Accordingly, the tensile stress generated by the mechanical reason or thermal reason on the ceramic pipe 10 is reduced, and the strength of the ceramic pipe 10 can be reinforced.

36. 发明专利

JPH0825203A POLISHING OR GRINDING METHOD AND DEVICE 失效
公开(公告)号：JPH0825203A
公开(公告)日：1996-01-30
申请号：JP16195994
申请日：1994-07-14
申请人： HATAMURA YOTARO , ASAHI GLASS CO LTD
发明人： HATAMURA YOTARO , ISHIMURA KAZUHIKO , ANDO HIROSHI , SHIOKAWA HIROSHI , INAI TOSHIO
IPC分类号： B24B7/00 , B24B7/24 , B24B37/005 , B24B37/10 , B24B41/047 , B24B37/04
摘要： PURPOSE:To prevent the polishing irregularities of a glass plate or the like by setting the rocking center position of a polishing member near the polished surface of a machined member. CONSTITUTION:A polishing member support mechanism 32 is constituted of four joint links 34, and the joint links 34 are connected to four corners of a support plate 36 and a grinding plate 10 respectively. Both end sections of the joint links 34 are connected to the support plate 36 and polishing plate 10 via joint members and supported rockably in any direction. Extension lines of the joint links 34 intersect at a virtual center point A on the center axis of the polishing plate 10. The virtual center point A is located slightly below the polishing surface of the polishing plate 10. The pressure distribution of the polishing surface of the polishing plate 10 can be set almost uniformly during grinding. The polishing plate 10 can be released so that the friction resistance applied to the polishing plate 10 is not increased, and the pressure distribution of the polishing surface can be maintained nearly uniform.

37. 发明专利

JPH07237937A POLISHING APPARATUS PROVIDED WITH BREAKAGE DETECTION MEANS 失效
公开(公告)号：JPH07237937A
公开(公告)日：1995-09-12
申请号：JP2795994
申请日：1994-02-25
申请人： ASAHI GLASS CO LTD
发明人： ISHIMURA KAZUHIKO , MINE SHINYA
IPC分类号： B23Q11/00 , B24B37/12 , C03C19/00 , B24B37/04
摘要： PURPOSE:To enable the detection of the breakage of a glass under polishing in a high precision from the variation of force applied to a polishing surface plate by providing a polishing surface plate with a breakage detection means in a polishing apparatus for polishing a working object by pressing the polishing surface plate to the object. CONSTITUTION:A polishing surface plate 10 is fixed via a connection member 12 to a liftable plate 14 liftably supported on the main body of the polishing apparatus. A pressure sensor 22 acting as a breakage detection means 20 is inserted into an opening formed on the polishing surface plate 10. A downward pressing force is applied to the liftable plate 14 with a pressing means, the polishing pad 16 attached to the bottom face of the polishing surface plate 10 is pressed against a glass plate 18 and the polishing surface plate 10 is subjected to polishing movement keeping the above state to polish the glass plate. When the glass plate 18 is broken during the polishing work, the broken glass piece pushes up the polishing pad 16 to increase the pressure applied to the pressure sensor 22 and the pressure signal is transmitted to a controller to stop the polishing work by the command transmitted from the controller.

38. 发明专利

JPH07214465A AUTOMATIC REPLACEMENT DEVICE OF POLISHING TABLE 失效
公开(公告)号：JPH07214465A
公开(公告)日：1995-08-15
申请号：JP936794
申请日：1994-01-31
申请人： ASAHI GLASS CO LTD
发明人： ISHIMURA KAZUHIKO , WATANABE ITSURO
IPC分类号： B24B7/00 , B24B41/06
摘要： PURPOSE:To replace a polishing table used in a polishing line on a short period of time by easily replacing the polishing table on the polishing line with a new polishing table. CONSTITUTION:A storage part 34 stores a polishing table 12, and a carry-in roller 32 carries in the polishing table 12 from a polishing machine to the storage part 34. A carry-out roller 38 carries out a new polishing table 13 to the polishing machine. Consequently, it is possible to easily replace the polishing table 12 used on a polishing line with the new polishing table 13.

39. 发明专利

JPH06198530A METHOD FOR WORKING AND SUPERPOSING A PLURALITY OF PLATE-LIKE MATERIALS 失效
公开(公告)号：JPH06198530A
公开(公告)日：1994-07-19
申请号：JP25307693
申请日：1993-10-08
申请人： ASAHI GLASS CO LTD
发明人： OZAWA YOICHI , ITO MASABUMI , ISHIMURA KAZUHIKO , NAGASAWA IKUO
IPC分类号： B23Q3/06 , C03B33/00
摘要： PURPOSE:To simultaneously work a plurality of plate-like bodies for improving productivity by integrating a plurality of superposed plate-like bodies separably stacked up without any gaps therebetween to perform drilling a plurality of the integrated plate-like bodies. CONSTITUTION:In drilling a plate-like body such as a disk-like glass plate used for an optical disk, magnetic disk or the like, a plurality of (for example 50 plates) glass plates 10... are superposed to lean against a receiving tray 12 which has a plate 14 formed into the nearly V-shaped form and with a plurality of openings 14A and triangular closing plates provided on both ends of the plate 14. The receiving tray 12 receiving the glass plates 10... is dipped in adhesive liquid solidified at the room temperature so that the adhesive liquid by a capillary phenomenon gaps between the overlapped glass plates 10, 10 which are drilled under the adhered condition through the adhesive liquid under the room temperature.

40. 发明专利

JPH05229831A METHOD FOR HOMOGENIZING MOLTEN MATERIAL AND APPARATUS THEREFOR 失效
公开(公告)号：JPH05229831A
公开(公告)日：1993-09-07
申请号：JP3321192
申请日：1992-02-20
申请人： ASAHI GLASS CO LTD
发明人： ISHIMURA KAZUHIKO , SAITO FUMIAKI
IPC分类号： C03B5/18 , C03B5/187
摘要： PURPOSE:To prevent the generation of bubbles in stirring and homogenize molten glass by placing a U-shaped homogenization apparatus between a melting furnace and a forming machine and providing a stirrer at a specific depth in a descending flow channel. CONSTITUTION:A homogenization apparatus 10 for a molten material is placed between a melting furnace 12 and a forming machine 14 and is provided with a nearly U-shaped channel 16 and a stirrer 18. The upper end of the descending flow channel 16A is connected to a cooling layer 19 to guide the glass G melted in the melting furnace 12 to the homogenization apparatus 10. The right end of a horizontal channel 16B is connected to the lower end of the ascending flow channel 16C and the upper end of the channel 16C is connected to the storage tank 20. The storage tank 20 guides the molten glass G to the forming machine 14. The rotary shaft 18A of the stirrer 18 is coaxially supported in a rotatable state in the descending flow channel 16A and the blade 18B is positioned at a prescribed depth H to enable the sufficient stirring of the glass G without generating bubbles in the glass. The molten glass G can be homogenized by this procedure and introduced into the forming machine 14 through the horizontal channel 16B and the ascending flow channel 16C.

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