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1. 发明专利

JP2000246795A SIMULTANEOUSLY BIAXIALLY ORIENTING MACHINE FOR SHEET- LIKE MATERIAL 失效
公开(公告)号：JP2000246795A
公开(公告)日：2000-09-12
申请号：JP5509999
申请日：1999-03-03
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： FUJISAKI MASAHIRO , TAKADA TADASHI
IPC分类号： B29C55/16 , B29K101/12 , B29L7/00
摘要： PROBLEM TO BE SOLVED: To stably feed at a high speed, to prolong lifetime, and to avoid a dirt due to oil scattering by always supporting a small ball seating bearing at an arbitrary position by one or above large balls in an entire feeding locus circumference of a linkage on a bed to become a feeding passage of the linkage. SOLUTION: Small balls 1 are placed to support a large ball 10 at a center of a curved surface of a ball receiver 12 disposing the balls 11, and a cover 13 for preventing an invasion of dust to a ball portion and sealing grease of a lubricant is mounted to the receiver 12. A small ball seating bearing for supporting a large ball by a plurality of small balls is installed on a feeding locus of a linkage on a bed 15 so that a supporting seat 14 surface hardened to a predetermined hardness attached to a lower end of a link shaft 17 of a side to be supported can be always supported by one or above large balls 10. Periodic supply of the grease and replacements of the balls 10, 11 are conducted by disassembling the cover 13. Thus, an oil dirt can be avoided, no sliding part exists at the linkage and the feeding passage sides, and hence lifetimes of the bearing and the passage can be enhanced and stably rapid feeding can be executed.

2. 发明专利

JP2000037772A SIMULTANEOUSLY AND BIAXIALLY STRETCHING APPARATUS 失效
公开(公告)号：JP2000037772A
公开(公告)日：2000-02-08
申请号：JP20896498
申请日：1998-07-24
申请人： HITACHI LTD , HITACHI TECHNO ENG , UNITIKA LTD
发明人： HAYASHI MASANORI , TAKADA TADASHI , TSUBOUCHI KENJI , ISHIKURA KATSUZO , YAMAUCHI HIROYUKI , HIRAKAWA TAKUYA
IPC分类号： B29C55/16 , B29K101/12 , B29L7/00 , B65H20/16 , B65H23/028
摘要： PROBLEM TO BE SOLVED: To eliminate a line shaft by individually providing motors for the rotational drive with respect to sprockets of right and left inlets and outlets so as to detect and control the rotational phase difference between the right and left motors or the like and simultaneously control the imbalance between the right and left sides by detecting the rotational phase difference between the sprockets of the inlets and outlets. SOLUTION: Motors 11R, 11L are connected to inlet-side sprockets 7R, 7L and 8R, 8L, while motors 21R, 21L drive outlet-side sprockets 9R, 9L. The rotational conditions of the motors 11R, 11L and 21R, 21L are detected, while the rotational conditions of the sprockets 7R, 7L and 8R, 8L and the sprockets 9R, 9L. In accordance with these detected signals, a controller 19 controls the difference between right and left sides of the motors 11R, 11L and 21R, 21L, and also controls the difference between the right and left sides of the variation in the stretching ratio in the film forwarding direction. This prevents tear of the subsequently stretched film and also eliminates a line shaft.

3. 发明专利

JPH11227042A SIMULTANEOUSLY BIAXIALLY ORIENTING MACHINE FOR SHEET-LIKE MATERIAL 失效
公开(公告)号：JPH11227042A
公开(公告)日：1999-08-24
申请号：JP2806098
申请日：1998-02-10
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： HAYASHI MASANORI , TAKADA TADASHI
IPC分类号： B29C55/16 , B29K101/12 , B29L7/00 , B65H20/16 , B65H23/028
摘要： PROBLEM TO BE SOLVED: To stably feed at a high speed and to prolong a lifetime by installing bearings made of a single steel ball or a plurality of steel balls circumferentially disposed at the lowermost part of a link shaft for a joint of a link plate, and forming a groove at a bed side for guiding the balls. SOLUTION: A link plate 11 is coupled to other link plate via a ink shaft 13 or a link pin 14 to form an endless loop. In this ball bearing structure, a steel ball race 12 having a hole for mounting a steel ball 10 is provided at a lowermost part of the shaft 13. And the ball 10 is mounted in a hole of the race 12. Meanwhile, a bed 15 to become a feeding passage is constituted by a wear resistant material 20, a rounded groove 19 is formed at an upper surface side of the material 20, and the ball 10 is fed on the groove 19. And, a radial bearing 16 is installed at the shaft 13 at a position of an upper part of the race 12. And the bearing 16 is restricted by a guide groove formed of guide rails 4, 5, 6 and fed.

4. 发明专利

JPH05306894A 失效
公开(公告)号：JPH05306894A
公开(公告)日：1993-11-19
申请号：JP6322792
申请日：1992-03-19
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： HAYASHI MASANORI , ISHIKAWA HIROMASA , TAKADA TADASHI
IPC分类号： F28F9/02 , F28F9/18
摘要： PURPOSE:To provide a method of attaching a heat transfer tube to a tube plate in a heat-exchanger and the like, in which stress corrosion cracking at the tube end of the heat-exchanger and the like is prevented and a heat transfer tube attaching pitch is not increased more than necessity. CONSTITUTION:In this attaching method, the welding beveling of the attaching section of a heat transfer tube 1 is V-shaped in a section including Y-axis and a core rod 2, having the same material as the heat transfer tube 1, is inserted into the welding section of the tube while welding is started from two surfaces in the direction of Y-axis and the welding is carried out from the center of the group of heat transfer tubes 1 toward the outside of the group sequentially.

5. 发明专利

JPH0579507A ECCENTRIC FASTENING BOLT AND NUT 失效
公开(公告)号：JPH0579507A
公开(公告)日：1993-03-30
申请号：JP24091291
申请日：1991-09-20
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： KANZAKI ATSUMITSU , FUJIMOTO MASARU , FURUKAWA KEISHIN , TAKADA TADASHI , NOMURA SEIJI , ISHIYAMA YOSHIO , OKAMOTO NAOTOMO , KUNIMITSU HISAO , INOUE YUKIO
IPC分类号： F16B39/10
摘要： PURPOSE:To eliminate damage of bolts and nuts at disassembling of a fastened part and also prevent looseness of fastening by making the outer circumference of a bolt head and a nut eccentric against the bolt trunk axis, and inserting a locking ring to the outer circumferential part after fastening the bolt. CONSTITUTION:An eccentric bolt 1 is provided with two flat faces 7 mutually in parallel on the circular head part, and the head part is eccentric against the the center axis of the bolt trunk part 2. An eccentric nut 3 is also provided with two flat faces 7, and the circumferential part is eccentric against the center axis of the bolt trunk part. After fastened members 4 are fastened with the eccentric bolt 1 and the eccentric nut 3, locking rings 5,6 are respectively inserted to the head part of the eccentric bolt 1 and the eccentric nut 3, and fixedly secured to the fastened members 4 by stop welding 8. The locking rings 5,6 are worked so as to fit the bore to the outer circumference of the bolt head and the nut. Hereby, although the bolt and the nut are apt to loosen, they can not be rotated with respective locking rings. Meanwhile, even if temperature difference is generated between the fastened members and the bolt, locking rings allow axial movement between them on the fitted face.

6. 发明专利

JPH01123974A MEDIUM FEEDING DEVICE 失效
公开(公告)号：JPH01123974A
公开(公告)日：1989-05-16
申请号：JP28092387
申请日：1987-11-09
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： TAKADA TADASHI , MORITA SHOJI , MORI AKIRA
IPC分类号： F25D3/10
摘要： PURPOSE:To enable the reliable feeding of a refrigerant having a given temperature to a body to be fed, by a method wherein a flow passage for a medium connected to the outlet side of the refrigerant to be fed side of a transfer piping is branched and valves are situated to the respective branch flow passages, and by means of the measuring value of a temperature measuring means situated in a flow passage followed by the valve, the respective valves are controlled. CONSTITUTION:When LHe is forced to flow in succession to a transfer pipe 9, the transfer pipe 9, a manifold 19, and a transfer pipe 8 are cooled by means of LHe. The temperatures thereof are reduced to the same value as the temperature of LHe, and vaporization and gasification of the LHe is rendered ineffective, and the LHe comes out through the transfer pipe 8. In which case, the measurement value of a thermometer 12 is reduced to a set value, a control device 14 opens a feed valve 6 and closes a precool valve 7. Thus, the LHe is fed in a liquid helium tank 2. The LHe is fed to the liquid helium tank 2, and as a liquid level is raised, a measurement value by a level gauge 13 is increased to a value approximately equal to a set value, and when the measurement value is increased to a set value, a control device 15 closes a feed valve 17. Since, after temperature in the transfer pipe 8 is reduced, the LHe is fed in the liquid helium tank 2, the reliable feed of the LHe to the liquid helium tank 2 can be performed.

7. 发明专利

JP2000334832A MACHINE FOR SIMULTANEOUSLY STRETCHING SHEET BIAXIALLY 失效
公开(公告)号：JP2000334832A
公开(公告)日：2000-12-05
申请号：JP14765499
申请日：1999-05-27
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： FUJISAKI MASAHIRO , TAKADA TADASHI
IPC分类号： B29C55/16
摘要： PROBLEM TO BE SOLVED: To prevent dirt due to high speed traveling and oil scattering in advance by providing radial bearings with grooves which engage with the projected parts of both sides of a guide rail respectively at the lower end of the link shaft of an endless link apparatus in the apparatus. SOLUTION: In an endless link apparatus, radial bearings 11 with grooves are set at the positions on both sides of each projected guide rails 12, 13 so that the notched grooves of an outer wheel are engaged with bearing fitting seats 10 fitted at the lower end of a link shaft, with the projected parts of the guide rails 12, 13. The guide rail 12 on the side of a sheet is fixed on a bed 16, the guide rail 13 of an anti-sheet is made to have pin joint structure, parts excluding a preheating part and a stretching part are fixed on the bed 16, the male parts of a guide moving shaft 15 supported by a pillow block 14 are inserted into the preheating part and the stretching part, the shaft 15 is rotated to move the guide rail 13, and the gap between it and the guide rail 12 is made steplessly variable.

8. 发明专利

JPH02150597A CRYOSTAT 失效
公开(公告)号：JPH02150597A
公开(公告)日：1990-06-08
申请号：JP30058188
申请日：1988-11-30
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： MORITA SHOJI , TAKADA TADASHI , TAKEI NOBUYUKI , KAWAMURA IKUO
IPC分类号： F16L59/18 , F16L27/08
摘要： PURPOSE:To make a supply body or a supplied body simply shiftable to an optional position in keeping a cryogenic refrigerant transfer pipeline attached intact by supporting a connecting part between these supply and supplied bodies and the cryogenic refrigerant transfer pipeline with a rotatable supporting means. CONSTITUTION:A cryogenic refrigerant flowing in a male inner tube 11 is protected by each vacuum insulated layer at both male and female sides and efficiently fed to an inner tube of a supply side apparatus 4. A gasified cryogenic refrigerant is filled up in space between a male outer tube 14 and a female inner tube 43, but it is sealed by gland packing 26 and other O-rings or the like, whereby it is prevented from leaking to the outside. A sleeve 21 is rotatable to a lower case 24 and an upper case 28 via bearings 23, 29. Accordingly, this rotary joint 2 is installed in the end of a transfer pipeline 1 and assembled in a liquefying refrigerator 3 and the supply side apparatus 4, whereby this supply apparatus is shiftable at an optional angle.

9. 发明专利

JPH01253575A CRYOPUMP 失效
公开(公告)号：JPH01253575A
公开(公告)日：1989-10-09
申请号：JP8125788
申请日：1988-04-04
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： TAKADA TADASHI , TAKAHASHI TSUYOSHI , KASHIBE MITSUNORI , YOSHIMATSU YUKIYOSHI
IPC分类号： F04B37/08
摘要： PURPOSE:To suppress the exhaust speed of the second panel by providing an auxiliary baffle inside the first panel in a cryopump provided with the first panel to be cooled, a baffle, and the second panel arranged in a space made by them and cooled to a further lower temperature. CONSTITUTION:A cryopump cools the first and second panels 4 and 5 fitted to cold stages 2 and 3 cooled by a refrigerator main body 1 to about 80K and 20K, for example. The moisture in the residual gas from an exhausted chamber 10 is adsorbed mainly by a baffle 6, components such as N2 and Ar are exhausted by the second panel 5 respectively, and the quantity of the gas flowing into the second panel 5 is restricted by a screen valve 11 between the baffle 6 and the second panel 5. In this case, an auxiliary baffle 13 closing a gap deltabetween the first panel 4 and the screen valve 11 when the screen valve 11 is fully closed is fitted to the inner wall of the first panel 4 so that the exhaust speed of the second panel 15 can be suppressed small.

10. 发明专利

JPS63306361A COLD ACCUMULATOR TYPE REFRIGERATOR 失效
公开(公告)号：JPS63306361A
公开(公告)日：1988-12-14
申请号：JP13980887
申请日：1987-06-05
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： KASHIBE MITSUNORI , TAKAHASHI TSUYOSHI , TAKADA TADASHI
IPC分类号： F25B9/00 , F25B9/14

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