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1. 发明专利

JPS54117854A MECHANICAL SEAL 失效
公开(公告)号：JPS54117854A
公开(公告)日：1979-09-12
申请号：JP2413878
申请日：1978-03-03
申请人： TOYODA AUTOMATIC LOOM WORKS , TAIHO KOGYO CO LTD
发明人： TAKENAKA AKIRA , FUKUOKA TATSUHIKO
IPC分类号： F16J15/34
摘要： PURPOSE:To improve the sealing effect of a mechanical seal at stopping time by projecting the outer peripheral side of the sliding contacting surface without fine grooves slightly axially from the inner peripheral side thereof to enhance the surface pressure of the outer peripheral side thereof. CONSTITUTION:Short fine grooves 15 are formed on the sliding contacting portion of a driven ring 10 of a mechanical seal. The outer peripheral side of the sliding contacting surface of the ring 10 is projected slightly axially from the inner peripheral side in contact with a seal ring 9 as an outer higher surface. Thus, the contacting surface pressure of the sliding contacting surface of the driven ring 10 with the ring 9 is higher at the inner periphery than the outer periphery without the grooves 15. Accordingly, it can remarkably reduce the leaked flow of oil from the outer periphery of the sliding contacting surface of the ring 10 toward the grooves 15 at stopping time of the ring 10 so as to enhance the sealing effect of the seal at stopping time.

2. 发明专利

JPS62196470A MECHANICAL SEAL 失效
公开(公告)号：JPS62196470A
公开(公告)日：1987-08-29
申请号：JP3693286
申请日：1986-02-21
申请人： TAIHO KOGYO CO LTD , TOYODA AUTOMATIC LOOM WORKS
发明人： TAKENAKA AKIRA , SHIMAZAKI KEIICHI , YAMAGAMI SHINYA
IPC分类号： F16J15/34
摘要： PURPOSE:To obtain good sealing effect during rotation and at stopping by forming the contact surface of either a seat ring or a driven ring with an inclined surface and setting the inclined surface to be outside higher at stopping of rotation and to be inside higher during rotation. CONSTITUTION:A mechanical seal is provided in a compressor unit to prevent leak of fluid to a joint portion of a rotary shaft 1 with an electromagnetic clutch. In other words, the rotary shaft 1 is inserted through a seat ring 9, with which a driven ring 10 rotatable along with the rotary shaft 1 is kept in sliding contact to prevent leak of liquid from the clearance between the seat ring 9 and the rotary shaft 1. In this case, the contact surface of either the driven ring 10 and the seat ring is formed in an inclined surface. The inclined surface is set to be outside higher so that the outer periphery of either ring 9, 10 may axially project greater than the inner periphery at stopping of rotation or in the ordinary temperature condition, and to be inside higher so that the inner periphery of either ring 9, 10 may axially project greater than the outer periphery due to thermal deformation during rotation.

3. 发明专利

JPS6045641A WEFT GUIDE OF LOOM 失效
公开(公告)号：JPS6045641A
公开(公告)日：1985-03-12
申请号：JP11103384
申请日：1984-06-01
申请人： TAIHO KOGYO CO LTD , TOYODA AUTOMATIC LOOM WORKS
发明人： TSURUMI KAZUFUMI , FUTAMURA KENICHIROU , TAKENAKA AKIRA
IPC分类号： D03D47/30

4. 发明专利

JPS58163869A MECHANICAL SEAL DEVICE 失效
公开(公告)号：JPS58163869A
公开(公告)日：1983-09-28
申请号：JP4589482
申请日：1982-03-23
申请人： TAIHO KOGYO CO LTD , TOYODA AUTOMATIC LOOM WORKS
发明人： TAKENAKA AKIRA
IPC分类号： F16J15/34
摘要： PURPOSE:To enable an O-ring mounting groove to be formed without cutting by forming a small diameter portion in a bearing end of a fixed stopper of a seat ring to form the O-ring mounting groove between the seat ring and the stopper. CONSTITUTION:A seat ring 14 is formed on the peripheral surface with a reduced diameter portion worked in the form of a shoulder directed toward the stopper side to form an O-ring mounting groove on the outer peripheral surface of the seat ring 14 by the max. diameter portion 14a and the stopper 12. Thus, since the seat ring 14 does not have on the outer peripheral surface any convenventional groove-like portion, the seat ring can be produced by any working methods, for example forging, sintering or molding other than cutting. Thus, for the material are used not only FC, SUJ, SCH, etc., but also Al2O3, SiC, BN, Si3M4, B4C, etc., socalled ceramics or synthetic resin which are non-machineability materials.

5. 发明专利

JPS5557759A MECHANICAL SEAL 失效
公开(公告)号：JPS5557759A
公开(公告)日：1980-04-28
申请号：JP13140678
申请日：1978-10-25
申请人： TOYODA AUTOMATIC LOOM WORKS , TAIHO KOGYO CO LTD
发明人： TAKENAKA AKIRA , FUKUOKA TATSUHIKO
IPC分类号： F16J15/34
摘要： PURPOSE:To effectively prevent a sealed liquid or gas-liquid mixture from leaking to the side of external gas, by forming many depressions on the internal circumference of a driven ring, its external circumference being formed as a land. CONSTITUTION:A mechanical seal 7 has sheet ring 9 and driven ring 10 turning together with a rotary shaft 10 which penetrates through both rings to prevent gas or oil from leaking through clearance between the sheet ring 9 and shaft 1. The driven ring 10, equipped with a packing 11 and washer 12, is energized and pressed toward the sheet ring 9 by a spring 14 fitted between the ring and a knock ring 13. The external circumference of the sliding face 10a of driven ring 10 is formed flat as a land L and many regular or irregular depressions 20 are formed on the internal circumference to improve the sealing effect.

6. 发明专利

JPS55129663A MECHANICAL SEAL 失效
公开(公告)号：JPS55129663A
公开(公告)日：1980-10-07
申请号：JP3535379
申请日：1979-03-26
申请人： TOYODA AUTOMATIC LOOM WORKS , TAIHO KOGYO CO LTD
发明人： TAKENAKA AKIRA , FUKUOKA TATSUHIKO
IPC分类号： F16J15/34
摘要： PURPOSE:To improve sealing capacity by cutting an annular groove in the sliding surface of the driven ring slid against the seat ring which divides the sliding surface into the outer peripheral land part and the inner peripheral groove part in which plural fine grooves are made. CONSTITUTION:The driven ring 10 of the mechanical seal which rotates with the rotating shaft 1 slides against the seat ring 9 through which the rotating shaft 1 is penetrated, and leakage of oil or gas through the gap between the seat ring 9 and the rotating shaft 1 is prevented by the sliding. In this case, the plural fine grooves 16 are bore in the inner peripheral groove 15 in the sliding surface 10a of the driven ring 10, and an annular groove 18 is bore between the inner peripheral groove part 15 and the flat land part 17 in the outer peripheral. Being thus constituted, fluid leaking through the outer peripheral land part 17 is scraped, and at the same time, the abrasion powder, powder dust, etc. are collected in the annular groove 18. Also, the influence of uneven deformation of the inner peripheral groove to the land part 17 can be prevented by the annular groove 18.

7. 发明专利

JPS5557760A MECHANICAL SEAL 失效
公开(公告)号：JPS5557760A
公开(公告)日：1980-04-28
申请号：JP13140778
申请日：1978-10-25
申请人： TOYODA AUTOMATIC LOOM WORKS , TAIHO KOGYO CO LTD
发明人： TAKENAKA AKIRA , FUKUOKA TATSUHIKO
IPC分类号： F16J15/34
摘要： PURPOSE:To effectively prevent sealed liquid or gas-liquid mixture from leaking to the side of external gas, by forming the external circumference of a driven ring as a flat land and the internal circumference as a rough surface area. CONSTITUTION:A mechanical seal 7 has a sheet ring 9 and driven ring 10 turning together with a rotary shaft 10 which penetrates through both rings to prevent gas or oil from leaking through clearance between the sheet ring 9 and shaft 1. The driven ring 10, equipped with a packing 11 and washer 12, is energized and pressed toward the sheet ring 9 by a spring 14 fitted between the ring and a knock ring 13. In this case, the external circumference of the driven ring's sliding face 10a is formed flat as a land L and the internal circumference is formed rough as a rough area R with a surface roughness of over 10mum to improve the sealing effect.

8. 发明专利

JPS54117858A MECHANICAL SEAL 失效
公开(公告)号：JPS54117858A
公开(公告)日：1979-09-12
申请号：JP12701578
申请日：1978-10-16
申请人： TOYODA AUTOMATIC LOOM WORKS , TAIHO KOGYO CO LTD
发明人： TAKENAKA AKIRA , FUKUOKA TATSUHIKO
IPC分类号： F16J15/34
摘要： PURPOSE:To enhance the sealing effect of a mechanical seal by forming outer higher shape of at least one sliding contacting surface of a seat ring and a driven ring. CONSTITUTION:The outer peripheral side of the sliding contacting surface of a driven ring 10 is formed slightly projected axially from the inner peripheral side of the seat ring 9. Accordingly, it can enhance the sealing effect of the mechanical seal at stopping time of the driven ring 10, and even if the driven ring 10 is thermally deformed due to the frictional heat with the seat ring 9, it can make contact with the entire surface from the outer peripheral contact with the sliding contacting surface of the seat ring 9 to as to maintain high sealing effect. The same effect can also be obtained by forming outer higher shape of the seal ring 9.

9. 发明专利

JP2003097429A SLIDE MEMBER 审中-公开
公开(公告)号：JP2003097429A
公开(公告)日：2003-04-03
申请号：JP2002165786
申请日：2002-06-06
申请人： TAIHO KOGYO CO LTD
发明人： HAYASHI MOTOJI , TAKENAKA AKIRA
IPC分类号： F04B39/00 , B22F3/24 , B22F5/00 , B22F5/12 , F04C29/00 , F16C33/12
摘要： PROBLEM TO BE SOLVED: To improve resistance against wear, resistance against seizure, and a load capacity of an iron sintered material forming a mate material by an aluminum alloy. SOLUTION: A slide member slides using the aluminum alloy as the mate material and is made of the iron sintered material on which a Ni-P plated film is applied on a slide face. Preferably, a volumetric vacancy rate of a cylindrical iron sintered alloy sliding using the aluminum alloy containing Si as the mate material is 16% or less, the inner face of the cylindrical iron sintered alloy sliding with the mate material is sized, and a Ni-P plated layer is formed.

10. 发明专利

JP2002276567A SCROLL COMPRESSOR 失效
公开(公告)号：JP2002276567A
公开(公告)日：2002-09-25
申请号：JP2001077926
申请日：2001-03-19
申请人： HITACHI LTD , TAIHO KOGYO CO LTD
发明人： IMAMURA HIROYUKI , SAKURAI KAZUO , TANAKA KEIJI , OISHI YASURO , FUKATSU KIYOSHI , HAYASHI MOTOJI , NAKAMURA SHINYA , TAKENAKA AKIRA
IPC分类号： F04C29/00 , F01C17/06 , F04C18/02
摘要： PROBLEM TO BE SOLVED: To improve the abrasion resistance of an Oldham's coupling and its mating member in a scroll compressor. SOLUTION: The scroll compressor has a fixed scroll and a swing scroll, and the Oldham's coupling for making the swing scroll make the swing motion is mounted in the compressor. The sliding surface of the Oldham's coupling on which the mating member slides is made of a base material 31 including silicon 32, and the surface 32A of the silicon 32 exposed to the sliding surface is formed as a flat plane. The rate of the area of the silicon 32 formed as the flat plane to the area of the sliding surface is 3-20%, or preferably, 5-15%.

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