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1. 发明专利

JP2000274306A PISTON STRUCTURE OF ENGINE 失效
公开(公告)号：JP2000274306A
公开(公告)日：2000-10-03
申请号：JP7776199
申请日：1999-03-23
申请人： MAZDA MOTOR
发明人： HIRAMOTO KENJI , AMANO KOHEI , TAKESHIGE NOBUHIDE
IPC分类号： F01P3/10 , F02B3/06 , F02B23/06 , F02F3/22 , F02F3/26 , F16J1/00
摘要： PROBLEM TO BE SOLVED: To set the position and the form of a cooling hollow provided around a cavity, in order to improve the reliability of a cavity lip provided on the top surface of a piston. SOLUTION: A cooling hollow 30 is provided in a circular form, at the head part 12 of a piston 10, in order to surround a cavity 20 provided on the top surface 16 of the piston 10. In this case, the cooling hollow 30 is formed in an elliptical form, and its shorter diameter is fitted in the extending direction of a piston pin, and the longer diameter is fitted in the thrusting direction orthogonal to the pin direction. In the pin direction, the wall thickness L between the cooling hollow 30 and the outer peripheral surface of the piston 10 is made thicker and the rigidity is made larger, and the deformation of a lip part 22 by an explosion stress to be an outer stress is suppressed. The wall thickness L is made thinner in the thrusting direction, and the rigidity is reduced, and the deformation of the lip part 22 by a thermal stress to be an inner stress is also suppressed.

2. 发明专利

JPH05138666A APPARATUS FOR MOLDING ELIMINABLE MODEL FOR CASTING 失效
公开(公告)号：JPH05138666A
公开(公告)日：1993-06-08
申请号：JP33248991
申请日：1991-11-20
申请人： MAZDA MOTOR
发明人： SHIBAHARA MASAHIKO , ASAI YASUSHI , TAKESHIGE NOBUHIDE , OMORI MOTOFUMI
IPC分类号： B22C7/02 , B29C39/22 , B29K105/04
摘要： PURPOSE:To prevent deformations or breakages of an eliminable model positively by unifying the fusional state of foam beads eliminable model irrespective of its wall thickness, and stabilizing the superficial property for improving the molding qualities and, besides, enhancing the mold-releasing property of the eliminable model. CONSTITUTION:A molding apparatus for an eliminable model for casting is of the type where foam beads 11 are filled into a mold 6 and steam pressure is applied to the foam beads 11 for effecting foam-molding, and on the back of the mold 6 equipped with a number of air bents 8, a wall thickness side evaporation chamber 12 and a thin wall side evaporation chamber 13 are formed respectively which are partitioned corresponding to the wall thickness part and thin wall part of the eliminable model. Then, an evaporation supplying means 18 is provided which acts to render the evaporation pressure supplied to the wall thickness side evaporation chamber 12 higher than the evaporation pressure supplied to thin wall side evaporation chamber 13 at the time of effecting foam-molding, and further air introducing means 26 is provided which assists in introducing pressurized air into the wall thickness evaporation side chamber 12 during the mold-releasing period.

3. 发明专利

JPH03138068A MANUFACTURE OF CAST IRON-MADE CYLINDER BLOCK 失效
公开(公告)号：JPH03138068A
公开(公告)日：1991-06-12
申请号：JP27606989
申请日：1989-10-25
申请人： MAZDA MOTOR
发明人： TAKESHIGE NOBUHIDE , ASAI YASUSHI , UOSAKI YASUO , OTSUKA AKIRA
IPC分类号： B22D19/08 , B22D27/04
摘要： PURPOSE:To prevent lowering of wear resistance caused by structure change of a cylinder liner by feeding cooling gas into a bore core just before temp. of the cylinder liner reaches A1 transformation point after inserting the cylinder liner as internal chill to rapidly cool the cylinder liner. CONSTITUTION:In a sand mold 3 arranged with cavity 4 for pouring molten metal, the sand having coarse and good gas permeability is packed into a bore core 5 in the cylinder liner 2, and also a venting hole 6 communicated with the bore core 5 from lower part of the sand mold 3 is arranged. At the time of filling up molten metal 7 into the cavity 4 in the sand mold 3 by executing pouring of the molten metal under this condition, the cylinder liner 2 is inserted with cast iron as internal chill, and accompanying to this, temp. of the cylinder liner 2 is rapidly raised. Then, by feeding the cooling gas just before the temp. of cylinder liner 2 reaches A1 transformation point, the cooling gas reaches the inner circumferential face 2a of cylinder liner 2 from the venting hole 6 through inner part of the core bore 5 of coarse sand to rapidly cool the cylinder liner 2. Therefore, the pearlitic structure having high wear resistance is held.

4. 发明专利

JPH03138064A MANUFACTURE OF CAST IRON-MADE CYLINDER BLOCK 失效
公开(公告)号：JPH03138064A
公开(公告)日：1991-06-12
申请号：JP27606589
申请日：1989-10-25
申请人： MAZDA MOTOR
发明人： UOSAKI YASUO , TAKESHIGE NOBUHIDE , ASAI YASUSHI , ASAKURA YOJI
IPC分类号： B22D19/08 , B22D35/04
摘要： PURPOSE:To integrate outer circumference of a cylinder liner and an internal chilling material and to strengthen mechanical connection by arranging pouring basin part at side part of a cylinder block and executing pouring of molten metal at side part of the cylinder block from the pouring basin part through a bypass passage. CONSTITUTION:In manufacture of the four cylinder cast iron-made cylinder block, at first at the time of filling up the internal chilling material in a mold M after starting the pouring of molten metal from a sprue 6, the molten metal surface level reaches the left end of a runner 5 to cause the molten metal to flow in the pouring basin parts 3, 3. After the molten metal surface level in the pouring basin parts 3, 3 reaches the position of bypass passage 4, the molten metal is caused to flow into the side parts 1a, 1a of cylinder block. Further, the pouring is executed until the molten metal is sufficiently filled up to upper end of the mold, and by removing the mold and a core after solidifying, the cylinder block 1 with the cylinder liner 2 formed with high wear resistant cast iron inserted into the cast iron as internal chill is obtd. Therefore, by executing the pouring from the bypass passage 4, temp. uniformity at outer circumference of the liner 2 is improved and the mechanical connection is strengthened.

5. 发明专利

JPH02303669A SUCTION CASTING METHOD WITH SHELL MOLD 失效
公开(公告)号：JPH02303669A
公开(公告)日：1990-12-17
申请号：JP12716389
申请日：1989-05-19
申请人： MAZDA MOTOR
发明人： UOSAKI YASUO , ASAI YASUSHI , TAKESHIGE NOBUHIDE , MATSUMOTO HIDEKI
IPC分类号： B22D18/06 , B22D23/00
摘要： PURPOSE:To prevent the development of casting defect of underfill, etc., by pouring molten metal into cavity while concentratedly sucking the air and reducing the pressure through high ventilating range formed in a shell mold near the position where misrun is easily developed in the cavity. CONSTITUTION:By working a water sealing type vacuum pump 12 before pouring the molten metal, the air in a venting hole 3a is beforehand sucked. The air in the cavity 4 through a porous filter 17 and the air in a vessel 7 with ventilation in the shell mold 1 are sucked, respectively, and negative pressure condition in the vessel 7 and the cavity 4 is formed. At the time of starting pouring of the molten metal from a sprue cup 8, cellophane tape 9 for shutting off the inner part of the vessel 7 from the air is melted and lost, and the molten metal is caused to flow into the cavity 4. A pump 12 continues to work so that the molten metal equally runs at every corners in the cavity 4. By this method, a casting product without any casting defect can be manufactured.

6. 发明专利

JP2006247066A Seat back frame structure for vehicle 有权
标题翻译：车座后座框架结构
公开(公告)号：JP2006247066A
公开(公告)日：2006-09-21
申请号：JP2005066243
申请日：2005-03-09
申请人： Mazda Motor Corp , マツダ株式会社
发明人： HARA MASAO , OGAWA JUNICHI , YOSHIMURA TAKASHI , TAKESHIGE NOBUHIDE
IPC分类号： A47C7/40 , B60N2/00
摘要： PROBLEM TO BE SOLVED: To provide a seat back frame structure for vehicles which substantially reduces the weight and reliably ensures strength and stiffness required for a seat back frame.
SOLUTION: The seat back frame structure is equipped with a resin frame body 20 of a flat plate shape, a metal hinge member 4, a first metal frame body 11 to which a supporting member 2 supporting a headrest 72 is attached, and a second metal frame body 12. A retractor mounting part 1c is provided in a position separated from the first metal frame body 11 in the upper part of the resin frame body 20, and a cross section bending part 20a is formed along substantially the vertical direction below the retractor mounting part 1c in the resin frame body 20. A retractor 85 is mounted on the retractor mounting part 1c through a retractor supporting bracket 80, and the retractor supporting bracket 80 is joined to the frame body 11 and the bending part 20a.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种基本上减轻重量并可靠地确保座椅靠背框架所需的强度和刚度的车辆的座椅靠背框架结构。座椅靠背框架结构配备有平板状的树脂框架体20，金属铰链构件4，安装有支撑头枕72的支撑构件2的第一金属框体11，以及第二金属框架体12.在该树脂框架主体20的上部与第一金属框架体11分离的位置设置有卷收器安装部1c，沿着上下方向形成横截面弯曲部20a 在牵开器安装部1c的下方位于树脂框体20内。牵开器85通过牵开器支承托架80安装在牵开器安装部1c上，牵开器支承托架80与框体11和弯曲部20a接合。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2006116123A Vehicle seat back frame structure 审中-公开
标题翻译：车身后座框架结构
公开(公告)号：JP2006116123A
公开(公告)日：2006-05-11
申请号：JP2004308179
申请日：2004-10-22
申请人： Mazda Motor Corp , マツダ株式会社
发明人： HARA MASAO , OGAWA JUNICHI , YOSHIMURA TAKASHI , TAKESHIGE NOBUHIDE
IPC分类号： A47C7/40 , B60N2/00
摘要： PROBLEM TO BE SOLVED: To provide a vehicle seat back frame structure securing the specified strength and rigidity and realizing a more reduction of weight.
SOLUTION: The vehicle seat back frame structure is provided with a hollow and flat resin frame body (20) having a cushion member support part (21), a first metal frame body (11) extendedly provided approximately along the upper side part of the resin frame body (20) and a second metal frame body (12) of which the upper end side is connected to the middle part of the first metal frame body (11) and a lower end side extends to a lower side part of the resin frame body (20) and is extendedly provided approximately along the lower side part and connected to a metal hinge member (4) disposed on the end in a breadthwise direction of the resin frame body (20). The resin frame body (20) is integrally formed with a part with an improved sectional rigidity, where the sectional rigidity in the outer periphery where the metal frame bodies (11) and (12) are not disposed is greater than that in a flat part of the cushion support part (21).
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种确保特定强度和刚度并实现更多重量减轻的车辆座椅靠背框架结构。解决方案：车辆座椅靠背框架结构设置有具有缓冲构件支撑部分（21）的中空和扁平的树脂框架体（20），第一金属框架体（11），其大致沿着上侧部分和第二金属框架体（12），其上端侧连接到第一金属框架体（11）的中间部分，下端侧延伸到第二金属框体所述树脂框架体20大致沿着所述下侧部延伸设置，并且与设置在所述树脂框体20的宽度方向的端部的金属铰链部件4连接。树脂框架体（20）与具有改进的截面刚度的部分一体地形成，其中未设置金属框架体（11）和（12）的外周中的截面刚度大于平坦部分的垫子支撑部分（21）。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2004324597A Breaking prediction method and breaking prediction system for engine parts, and its control program 有权
公开(公告)号：JP2004324597A
公开(公告)日：2004-11-18
申请号：JP2003123151
申请日：2003-04-28
申请人： Mazda Motor Corp , マツダ株式会社
发明人： AMANO KOHEI , HIRAMOTO KENJI , TAKESHIGE NOBUHIDE
IPC分类号： G01M15/04 , F02D45/00 , G01M15/00
摘要： PROBLEM TO BE SOLVED: To accurately predict the life of engine parts until resulting in breakage by three breaking factors of low cycle fatigue, creep and high cycle fatigue without constructing a large-scale database requiring immense man-hours. SOLUTION: The life of engine parts when each breaking factor is independently applied is obtained by an experiment and set to databases DB11-13. When predicting a composite fatigue life by three breaking factors, time series simulation data of thermal load and vibration applied to the engine parts when operating an engine is obtained by an FEM analysis, and based on this data and the life data of the databases DB11-13, the amount of damage by each breaking factor of low cycle fatigue, creep and high cycle fatigue is obtained. The amount of creep fatigue damage is computed considering the influence of stress relaxation by interaction. The amount of high cycle fatigue damage is computed considering the influence of damage caused by vibration of a fatigue limit or less. Breaking is determined when the total of the damage amounts by three breaking factors becomes a prescribed value. COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JPH03138070A MANUFACTURE OF CAST IRON-MADE CYLINDER BLOCK 失效
公开(公告)号：JPH03138070A
公开(公告)日：1991-06-12
申请号：JP27607189
申请日：1989-10-25
申请人： MAZDA MOTOR
发明人： ASAI YASUSHI , UOSAKI YASUO , TAKESHIGE NOBUHIDE , SHIGENAGA TSUTOMU
IPC分类号： B22D19/00 , B22D19/08
摘要： PURPOSE:To integrate outer circumference of a cylinder liner and an internal chill material and to strengthen mechanical connection by arranging electric conductive heating means to a mold jig supporting the cylinder liner and inserting this as internal chill after heating with electric conduction. CONSTITUTION:Electric source for heating is connected so that electric conductive terminals 4a, 4b in the mold jig 3 fitted to upper end edge 2a of the cylinder liner 2 mutually come to the same potential and the electric conductive terminals 4a, 4b in the mold jig 3 fitted to lower end edge 2b of the cylinder liner 2 mutually come to the same potential, too. At first, before executing the pouring of molten metal to the mold, electric conduction is executed to the cylinder liner 2. By this electric conduction, the necessary part in the cylinder liner, i.e., the circumferential faces facing to the direction perpendicularly crossed to bore line direction of the cylinder liner 2 is concentrically preheated. Then, after suitably preheating the necessary position of cylinder linear 2, the pouring of molten metal to the mold is executed to inert the cylinder liner 2 as internal chill, and after solidifying, the mold and the core 1 are removed to obtain the cast iron-made cylinder block S inserting the cast iron-made cylinder liner 2 as internal chill.

10. 发明专利

JPH0289580A MANUFACTURE OF CAR BODY PANEL 失效
公开(公告)号：JPH0289580A
公开(公告)日：1990-03-29
申请号：JP18784588
申请日：1988-07-27
申请人： MAZDA MOTOR
发明人： NAKAMU MIKIRO , YAMAMOTO NAOYASU , SHIGENAGA TSUTOMU , TAKESHIGE NOBUHIDE
IPC分类号： B23K11/16 , B23K11/34 , B23K101/18
摘要： PURPOSE:To simplify the manufacture of a panel by sticking a masking tape which can be brought to thermal shrinkage to a thermal welding scheduled part of a car body panel, and thereafter, painting the panel and drying it, shrinking a masking seal, aligning the other material therewith and welding it to an exposed part of the car body panel. CONSTITUTION:In a press process, a flange part 2 is formed in the end part of three sides of an outer panel 1. Subsequently, a masking seal 4 of a vinyl chloride compound, etc., is stuck to a welding scheduled part 3. The outer panel 1 is brought to electrodeposition, dried in a high temperature atmosphere, brought to baking processing, and a thermal shrinkage processing is executed to the masking seal 4. The panel 1 is combined with an inner panel 5 and the welding scheduled part 3 exposed from the seal 4 due to thermal shrinkage and a welding scheduled part of the panel 5 are welded to each other by a high current from an electrode, and an assembly of a door panel is ended. In such a way, an unpainted panel ground can be exposed easily from the masking seal and the manufacture can be simplified.

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