公开(公告)号：JPH11132174A

公开(公告)日：1999-05-18

申请号：JP29122297

申请日：1997-10-23

Applicant: TOSHIBA CORP

Inventor： FUJIWARA HISAYOSHI ,  FUKUDA TETSUO

IPC: F04C18/344 ,  F04C18/107

Abstract: PROBLEM TO BE SOLVED: To provide a helical compressor which has a simple assembling structure of a helical compressing mechanism part and is easily assembled. SOLUTION: A helical compressor 10 has helical type compressing mechanism part 12 and a motor part 13 incorporated in a sealed case 11. The compressing mechanism part 12 has a cylinder 20 fixed to the sealed case 11, a roller 21 eccentrically placed in this cylinder 20, and a spiral blade 22 placed between this roller 21 and the cylinder 20. The roller 21 is journalled to a crank part 27 of a rotational shaft 17 from the motor part 13. On the other hand, a spiral blade grooves 29 is formed on the inner peripheral surface of the cylinder 20, and the spiral blade 22 is fitted into this blade groove 29. This spiral blade 22 is mounted to the roller 21, and plural compressing chambers 23 are partitioned and formed in the cylinder axis direction between the cylinder 20 and the roller 21. The roller 21 eccentrically rotated following the rotation of the rotational shaft 17, and the eccentric rotation of the roller 21 moves fluid to be compressed in the cylinder axis direction to compress it.

公开(公告)号：JPH05223077A

公开(公告)日：1993-08-31

申请号：JP2371692

申请日：1992-02-10

Applicant: TOSHIBA CORP

Inventor： FUJIWARA HISAYOSHI ,  FUKUDA TETSUO

IPC: F04C18/107 ,  F04C29/00

Abstract: PURPOSE:To improve axial accuracy in a bearing member in a horizontal fluid compressor having a cylindrical rotor provided with a spiral blade fitted therein and disposed in a cylinder by composing an enclosed case of a case barrel and a cylindrical bottomed frame part provided integrally with the bearing member. CONSTITUTION:A horizontal fluid compressor 31 accommodates a compression mechanism section in an enclosed case 32 and a motor for driving the section. The compression mechanism section is composed of a cylinder 8 having both ends opened and a piston of a cylindrical rotor fitted in the cylinder and having a spiral blade fitted slidably on the outer periphery with longitudinally changed pitch. Then, the enclosed case 32 is composed of a case barrel 33 having one axial end opened and a frame part 35 fitted into the opening 34 and formed integrally with a disk part 36 provided projectingly with a main bearing 38 in a predetermined position and a flange part 37. And the main bearing 38 of a frame part 35 supports one end of the cylinder and the flange part 37 is fitted in the case barrel 33.

公开(公告)号：JPH0460190A

公开(公告)日：1992-02-26

申请号：JP17306190

申请日：1990-06-29

Applicant: TOSHIBA CORP

Inventor： HONMA HISANORI ,  FUKUDA TETSUO ,  NAGASE TOSHIHARU

IPC: F04C18/107 ,  F04C29/00

Abstract: PURPOSE:To prevent falling off and scattering of a motor magnetic material from an axial directional end face of a rotor so as to improve reliability by providing a step differenced part, brought into contact with the axial directional end face of the rotor and coating its axial directional end face, in the peripheral part of a circular tube-shaped cylinder. CONSTITUTION:A fluid compressor 21 is formed by housing a compression mechanism part 22 and DC motor 4 in a closed case 2, and in the compression mechanism part 22, a piston 7 serving as a rotary unit, on which a helical blade 8 is wound, is eccentrically arranged in a cylinder 29. The motor 4 is constituted of a stator 10, formed by winding a winding 31 on an iron core 30, and a cylindrical rotor 11. The rotor 11 has a cylindrical main unit 32 formed of, for instance, a permanent magnet, to coat an internal peripheral surface of the main unit 32 with an inner side cylinder body 33, formed of magnetic material, and an external peripheral surface of the main unit 32 with an outer side cylinder body 34 formed of non-magnetic material. Here, a coating surface 37 is arranged so as to be brought into contact with a suction side end face, exposed between inner and outer cylinder bodies 33, 34 of the rotor 11, by protrusively providing a step differenced part 38 in the cylinder 29.

公开(公告)号：JPS63162989A

公开(公告)日：1988-07-06

申请号：JP30940886

申请日：1986-12-24

Applicant: TOSHIBA CORP

Inventor： IIDA TOSHIKATSU ,  FUJIWARA HISAYOSHI ,  FUKUDA TETSUO

IPC: F04C23/02

Abstract: PURPOSE:To unify the compressive force by conveying a fluid via the relative rotating motion in which the spiral bore of a rotating outside spiral component is brought into contact with an inside spiral component formed with a spiral outer periphery. CONSTITUTION:A compressor section 13 is constituted with an outside spiral component 25 and an inside spiral component 26. A spiral bore 27 is provided on the outside spiral component 25 along the rotation center direction and performs the sliding action with the inside spiral component 26. Thereby, the inside spiral component 26 is revolved while its rotation is blocked by a rotation restricting means. A fluid is conveyed in the space between the bore 27 and the periphery of the inside spiral component 26. Accordingly, the pressure feed of a liquid during the compression operation is performed continuously and uniformly.

公开(公告)号：JPS63162986A

公开(公告)日：1988-07-06

申请号：JP30940786

申请日：1986-12-24

Applicant: TOSHIBA CORP

Inventor： IIDA TOSHIKATSU ,  FUJIWARA HISAYOSHI ,  FUKUDA TETSUO

IPC: F04C23/02 ,  F04C18/107 ,  F04C23/00

Abstract: PURPOSE:To unify the compressive force by relatively rotating outside and inside spiral components and conveying a fluid from one side of the bore of the outside spiral component to the other side. CONSTITUTION:A compressor section 13 is constituted of a lengthy outside spiral component 17 and an inside spiral component 18, and a spiral bore 19 is provided on the outside spiral component 17. At each position of the bore 19, the cross section shape of each end section on the long diameter side of its cross section is a true circle, and the cross section shape of both end sections on the rectangle side is a straight line tangent to true circles at both ends. When a motor section 12 is energized, the outside spiral component 17 is rotated together with a rotor 16, the rotation of the inside spiral component 18 is blocked, but it is revolved. Accordingly, a fluid is conveyed between peripheries of the bore 19 and the inside spiral component 18, and the torque fluctuation can be reduced.

公开(公告)号：JPS59133817A

公开(公告)日：1984-08-01

申请号：JP661383

申请日：1983-01-20

Applicant: Toshiba Corp

Inventor： AIKAWA HIDEKAZU ,  MINAGAWA SUMIO ,  FUJIWARA HISAYOSHI ,  NAGASE TOSHIHARU ,  FUKUDA TETSUO

IPC: F16C9/02 ,  F16C3/04

CPC classification number: F16C3/04

Abstract: PURPOSE:To obtain a crank structure which can be prepared at low cost with little manhours of working by forming the crank shaft by connecting a main shaft constituted of a metal pipe and an eccentric shaft constituted of a metal ring. CONSTITUTION:On the outer periphery of a main shaft 8 constituted of a metal pipe body 1, an eccentric shaft 9 formed of a metal ring having the inside diameter larger than the outside diameter of the outer periphery of the main shaft 8 is installed, and a part of the inner peripheral wall is joined with the outer peripheral wall of the main shaft 8. A connecting rod 10 is constituted of a ring-shaped big end 11 which is formed by installing an inner peripheral wall in slidable manner onto the outer peripheral wall of the eccentric shaft 9 and an arm part 12 connected to a piston 6. The reciprocating movement of the piston 6 is achieved by allowing the revolution movement of the main shaft 8 to be linked with the eccentric movement of the eccentric shaft 9 installed onto the outer periphery of the main shaft 8. The distance (epsilon) between the center of the main shaft 8 and the center of the eccentric shaft 9 equals the crank radius of a crank shaft 7, and the value double the distance (epsilon) equals to the stroke of the piston 6. With such constitution, the manhours for working can be reduced remarkably.

Abstract translation: 目的：通过连接由金属管构成的主轴和由金属环构成的偏心轴构成曲柄轴，可获得能够以低成本，小型加工工作而制备的曲柄结构。 构成：在由金属管体1构成的主轴8的外周设置有由内径大于主轴8的外周的外径的金属环形成的偏心轴9， 内周壁的一部分与主轴8的外周壁接合。连杆10由环状的大端11构成，该环形大端11通过将内周壁可滑动地安装在外周 偏心轴9的壁和连接到活塞6的臂部12.活塞6的往复运动通过允许主轴8的旋转运动与安装在其上的偏心轴9的偏心运动相联系而实现 主轴8的外周。主轴8的中心与偏心轴9的中心之间的距离（epsilon）等于曲柄轴7的曲柄半径，并且该值的两倍 ce（ε）等于活塞6的行程。通过这样的结构，可以显着地减少作业的工时。

公开(公告)号：JPS5756134A

公开(公告)日：1982-04-03

申请号：JP13048380

申请日：1980-09-19

Applicant: Toshiba Corp

Inventor： SUGAWARA MAMORU ,  YONEYAMA SHIGEO ,  AOKI TAKEHISA ,  FUKUDA TETSUO

IPC: F04B39/00 ,  B21J5/00 ,  B21K1/18

Abstract: PURPOSE: To stabilize the function of piston and, at the same time, to prevent loss in volume due to deformation of the piston body, by thiciening the thickness of the wall at the top of piston than that of circumferential wall, when bottomed cylindrical pistons to be used for enclosed compressors are manufactured.
CONSTITUTION: A discoidal blank material 13 made of steel is put in a piston forming chamber 12 of a metallic mold 9 composed of die 11 set on the heat resisting plate 10, after the material 13 is treated by annealing and lubricating. Then, a pressure punch 14
b is advanveced under pressure. When the punch 14
b is advanced, plastic deformation is generated in the material 13, and the material 13 is expanded through the clearance between the pressure punch 14
b , and the piston forming chamber 12. When the pressing is completed, a cylindrical piston body 4 having a circumferential wall of t
2 thickness and a top wall of t
1 thickness which is 1.5W3times as large as t
2 , is formed in one body by cold forging. Since the thickness of the top wall is thick, the piston body 4 will not be deformed during the course of operation and a stable operation can be expected. Moreover, no loss in volume based on the increase of volume required for compression occurs.
COPYRIGHT: (C)1982,JPO&Japio

Abstract translation: 目的：为了稳定活塞的功能，同时，为了防止由于活塞体的变形导致的活塞体积损失，通过使活塞顶部的壁厚度比圆周壁的厚度变薄，当有底圆柱形活塞 用于封闭式压缩机的制造。 构成：在通过退火和润滑处理材料13之后，将由钢制成的盘状坯料13放入由设置在耐热板10上的模具11组成的金属模具9的活塞形成室12中。 然后，在压力下施加压力冲头14b。 当冲头14b前进时，在材料13中产生塑性变形，并且材料13通过压力冲头14b和活塞形成室12之间的间隙膨胀。当压力完成时，圆柱形活塞体4具有 通过冷锻在一个体中形成t2厚度的周壁和t1厚度为t1-3.5倍的t1壁的顶壁。 由于顶壁的厚度较厚，所以活塞主体4在操作过程中不会发生变形，并且可以期望稳定的操作。 此外，基于压缩所需的体积的增加不会造成体积的损失。

公开(公告)号：JPH09239642A

公开(公告)日：1997-09-16

申请号：JP4719596

申请日：1996-03-05

Applicant: TOSHIBA MACHINE CO LTD ,  TOSHIBA CORP

Inventor： KAWAHARA TAKAO ,  UCHIDA KEISUKE ,  FUKUDA TETSUO

IPC: B23Q37/00 ,  B23P23/02

Abstract: PROBLEM TO BE SOLVED: To provide a machine tool furnishing two spindle heads which has the merit of a rolling bearing spindle head and the merit of an air bearing spindle head concurrently. SOLUTION: To a column 3, the first spindle head having the built-in first spindle 13 which is supported rotatable on a rolling bearing; and the second spindle head 20 having the built-in second spindle 23 which is supported rotatable on an air bearing; are provided. Since a rough process and a second finish process are applied to a work 4 by the first spindle head 10, and after that, a finish process can be carried out by the second spindle head 20, the machining can be carried out from the rough machining to the finish machining continuously.

公开(公告)号：JPH0914137A

公开(公告)日：1997-01-14

申请号：JP16619395

申请日：1995-06-30

Applicant: TOSHIBA CORP

Inventor： FUJIWARA HISAYOSHI ,  FUKUDA TETSUO

IPC: F04B39/00 ,  F04B39/02 ,  F04C18/107 ,  F04C18/344

Abstract: PURPOSE: To improve the efficiency of an assembling work by a method wherein at least one bearing part of a main bearing part and an auxiliary bearing part comprises a bearing body in which a bearing hole to support a rotary body; and a bearing cover having a part which corresponds to the bearing hole and to which a suction pipe is connected. CONSTITUTION: A fluid compressor 30 has an electric motor part 40 and a compressor part 50, which are arranged in a closed case 31. The compressor part 50 comprises a cylinder part 60, a rotor part 70, a main bearing part 80, an auxiliary bearing part 90, and an auxiliary bearing part fixing part 100. Further, the cylinder part 60 has a cylinder 61, and helical blades 77a and 77b are fitted in a pair of helical grooves 76a and 76b formed in the outer peripheral surface of a rotor piston 71. Moreover, the main bearing part 80 comprises a main bearing 81 in which a pivotal support hole 81b to support the rotor piston 71 arranged on the inner periphery surface of the closed case 31 is formed; and a bearing cover having a part which corresponds to the bearing hole 81b and to which a suction pipe 35 is connected.

公开(公告)号：JPH055490A

公开(公告)日：1993-01-14

申请号：JP18376891

申请日：1991-06-28

Applicant: TOSHIBA CORP

Inventor： HONMA HISANORI ,  FUKUDA TETSUO

IPC: F04C18/107

Abstract: PURPOSE:To prevent a magnet from falling off and scattering by coating external/internal peripheral surfaces of an annular rotor main unit, consisting of a permanent magnet, respectively with cylindrical bodies to form a rotor, and providing both end surface covering parts in the inner side cylindrical body to coat axial directional end surfaces of the rotor main unit, in a fluid compressor for a refrigerating cycle. CONSTITUTION:Internal/external peripheral surfaces of a rotor main unit 27, with a permanent magnet cylindrically molded, are coated with outer/inner side cylindrical bodies 42, 43, consisting of non-magnetic material of stainless steel or the like, to form a rotor 41. End face covering parts 44, 44 are formed in axial directional both end parts of the inner side cylindrical body 43 to cover axial directional end surfaces 30, 31 of the rotor main unit 27. In this way, the magnet of the rotor main unit 27 is prevented from falling off and scattering and also facilitating positioning of the rotor main unit 27 and the inner side cylindrical body.