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11. 发明专利

JPS5574946A BELLOWS BUFFER 失效
公开(公告)号：JPS5574946A
公开(公告)日：1980-06-05
申请号：JP14882678
申请日：1978-12-01
申请人： FUJITSU LTD
发明人： KOBAYASHI MUTSUJI , AMAYA MIKIO , AIKAWA KAZUHISA , HORIE MASAKATSU
IPC分类号： B65H20/10 , B65H23/188 , B65H23/24
摘要： PURPOSE:To obtain a compact device for removing a flexion of the sequential paper, by sucking air through the bellows having a property of expansion and contraction. CONSTITUTION:Bellows 301-303 are installed to a support plate 304 forming a line breadthways for a recording paper 6, and connected to a blower 306. The support plate 304 is guided by a shifting guide 305 in the direction of an arrow mark, as shown in the drawing. When the recording paper 6 is adsorbed to air intake port of the bellows 301-303, an air suction force from the blower 306 overcomes a restoring force of the bellows 301-303, to pull the recording paper 6 toward the rear side direction, and remove a buffer amount by that pulling, thus can be removed a flexion of the recording paper 6. In accordance with a degree of flexion of the recording paper 6, the support plate 304 is made shifting on the shifting guide 305, to always absorb the flexion.

12. 发明专利

JPH03212150A LINEAR PULSE MOTOR 失效
公开(公告)号：JPH03212150A
公开(公告)日：1991-09-17
申请号：JP533690
申请日：1990-01-12
申请人： FUJITSU LTD
发明人： KOBAYASHI MUTSUJI
IPC分类号： H02K41/03
摘要： PURPOSE:To accurately and smoothly position by rocking a primary side magnetic circuit by a specific amount on a plane in the advancing direction by driving means. CONSTITUTION:A primary side magnetic circuit 1 is rocked in the advancing direction on a plane according to an equation by driving means 5. That is, the circuit 1 is always attracted to a secondary side magnetic circuit 3 by magnetic attraction forces of permanent magnets 13, 14, the suction force is received by a thrust bearing 4 to be oscillated. Then, a current flows to an electromagnet 5-1, the circuit 1 is attracted in parallel to the circuit 3. Then, when a movable unit is moved and to a region to be accurately and smoothly positioned, if the current of the magnet 5-1 is interrupted, the circuit 1 is equivalent to the case with a skew of only tau/4 (m=2, n=4) to the circuit 3 by a return spring 5-2. Thus, the region to be accurately and smoothly positioned can be easily altered.

13. 发明专利

JPH01133558A MULTIPOLAR LINEAR PULSE MOTOR 失效
公开(公告)号：JPH01133558A
公开(公告)日：1989-05-25
申请号：JP28892087
申请日：1987-11-16
申请人： FUJITSU LTD
发明人： IIDA YOSHITAKA , KOBAYASHI MUTSUJI
IPC分类号： H02K41/03
摘要： PURPOSE:To move a needle smoothly, and to obtain large thrust by a motor in low height by connecting and arranging the fundamental units of two or more of linear pulse motors in the progressive direction or the direction rectangular to the progressive direction. CONSTITUTION:Magnetic poles 12, 22, 32, 42 are disposed so that the arrange ment of the phase relationship of pole teeth for magnetic poles and stator teeth is symmetrized to fundamental units to a connecting surface (a). Magnetic poles 13, 23, 33, 43 are disposed so that the arrangement of magnetic poles 11, 21, 31, 41 and the phase difference of the magnetic poles is symmetrized to a connecting surface (b). Magnetic poles 14, 24, 34, 44 are disposed so that the arrangement of magnetic poles 13, 23, 33, 43 and the phase difference of the magnetic poles is symmetrized to the connecting surface (a) and the arrangement of the magnetic poles 12, 22, 32, 42 and the phase difference of the magnetic poles is symmetrized to the connecting surface (b). A secondary side magnetic circuit formed from a ferromagnetic body with a plurality of teeth is disposed to the primary side magnetic circuit.

14. 发明专利

JPS63242162A ASSEMBLING METHOD FOR LINEAR PULSE MOTOR 失效
公开(公告)号：JPS63242162A
公开(公告)日：1988-10-07
申请号：JP7504987
申请日：1987-03-27
申请人： FUJITSU LTD
发明人： KOBAYASHI MUTSUJI
IPC分类号： H02K41/03
摘要： PURPOSE:To improve positioning precision, by arranging a plurality of round rods having diameters equal to the tooth pitches of primary and secondary side magnetic-circuits, in close contact with each other on a plane. CONSTITUTION:On the sheet 10 of a ferromagnetic unit, four magnetic poles 10a-10d are formed, and at the tip of each magnetic pole, four teeth 12 are formed. On the surface of the base 14 of a non-magnetic unit, four grooves 11, 13, 15, 17 which can respectively contain three round rods 16 having diameters equal to the tooth pitches of the sheet 10 in close contact with each other are arranged. The round rods 16 are mounted on each of the grooves three pieces by three pieces in close contact with each other, and are fixed with adhesives 18. Besides, on the back side surface of the base 14, an electromagnet 24 with a core 20 wound up with a coil 22 is set. As a result, at the respective tooth positions, the sheet 10 is positioned by the round rods 16, and so in the whole area of the teeth, the sheets with aligned teeth can be laminated. Besides, the precision of the average dimension of the teeth after the lamination is heightened.

15. 发明专利

JPS6323558A LINER PULSE MOTOR 失效
公开(公告)号：JPS6323558A
公开(公告)日：1988-01-30
申请号：JP16371686
申请日：1986-07-14
申请人： FUJITSU LTD
发明人： KOBAYASHI MUTSUJI , WATANABE TOSHIHIKO
IPC分类号： H02K41/03
摘要： PURPOSE:To contrive to improve a positioning accuracy of a movable element by forming a rigid material into a thin non-magnetic plate provided integrally with a non-magnetic block for fitting a primary side magnetic circuit and forming a raceway surface of a gapretaining rolling element. CONSTITUTION: A stator 52 is composed of a frame 56 incorporating a primary side magnetic circuit 63 and said frame 56 is constituted by a non-magnetic block 66 and a thin rigid non-magnetic plate 67 provided integrally with the block 66. The thin plate 67 forms a raceway surface 77 for a gap-retaining rolling element 73 put between the frame 56 and a movable element 51 and the movable element 51 is guided by rolling of the rolling element 73 to perform a reciprocating rectilinear motion when the linear pulse motor is operated. Thus, if a thin non-magnetic plate 67 is formed by a rigid material, the raceway surface 77 is protected from damage and a positioning accuracy of the movable element 51 can be improved.

16. 发明专利

JPS62193551A BRAKING MECHANISM OF LINEAR MOTOR 失效
公开(公告)号：JPS62193551A
公开(公告)日：1987-08-25
申请号：JP3430286
申请日：1986-02-18
申请人： FUJITSU LTD
发明人： NISHIMOTO ATSUSHI , KOBAYASHI MUTSUJI
IPC分类号： H02K41/02
摘要： PURPOSE:To reduce the number of times of oscillation and shorten the time thereof when positioning a needle by obtaining a friction braking by relative displacement between needle and stator. CONSTITUTION:This linear motor-braking mechanism is provided with a cylindrically formed guide member 4 with radius r1 and a guide member 5 consisting of two cylinders with radii r2, r3. When a needle 2 oscillates, an outer face 4a of the guide member 4 touches two faces of a stator left side 1s and a needle left outer side 2s while a small diameter outer face 5a and a large diameter outer face 5b of the guide member 5 come in contact with a needle right outer side face 2s' and a stator right inner side face 1s', respectively. If the needle 2 moves linearly with respect to the stator 1, slips occur on the face 1s or 1s' and the braking force by friction works on the needle.

17. 发明专利

JPS6237786B2 失效
公开(公告)号：JPS6237786B2
公开(公告)日：1987-08-14
申请号：JP13821678
申请日：1978-11-09
申请人： FUJITSU LTD
发明人： KOBAYASHI MUTSUJI , AMAYA MIKIO , AIKAWA KAZUHISA , HORIE MASAKATSU
IPC分类号： B08B1/04 , B08B1/00 , G03G21/00 , G03G21/10

18. 发明专利

JPS62144560A ROLLING MECHANISM OF LINEAR PULSE MOTOR 失效
公开(公告)号：JPS62144560A
公开(公告)日：1987-06-27
申请号：JP28491785
申请日：1985-12-17
申请人： FUJITSU LTD
发明人： KOBAYASHI MUTSUJI , NISHIMOTO ATSUSHI
IPC分类号： H02K41/03
摘要： PURPOSE:To miniaturize the mechanism and make it as lightweight as possible in a simple constitution and to enhance the adaptability by providing a flat portion without pole teeth in the middle of the pole teeth row width of a stator, and by providing the rolling wheel between moving pieces abutting to the flat portion. CONSTITUTION:In the middle of the pole teeth row width of a stator 2 a flat portion 15 without pole teeth is provided along the progressive direction of a moving piece 1. Furthermore, a rolling wheel 17 abutted to this flat portion 15 is provided between the needle 1 facing the flat portion 15. The rolling wheel 17 rolls on the flat portion 17 provided between the pole teeth rows 10-1 and 10-2 and moves the moving piece 1 in parallel to the stator 2, keeping the clearance of pole teeth between the moving piece 1 and the stator 2.

19. 发明专利

JPS6237054A LINEAR PULSE MOTOR 失效
公开(公告)号：JPS6237054A
公开(公告)日：1987-02-18
申请号：JP17669085
申请日：1985-08-10
申请人： FUJITSU LTD
发明人： KOBAYASHI MUTSUJI
IPC分类号： H02K41/03
摘要： PURPOSE:To accelerate the damping of vibrations without reducing response frequency and load capacitance, which can be loaded, by forming predetermined phase difference among corresponding teeth in a magnetic pole pair and periodically generating large and small thrust and stiffness. CONSTITUTION:The teeth 12 of a magnetic pole pair having phase A for a movable element 19 are disposed to teeth 13 and the teeth 14 of a magnetic pole pair having phase B to teeth 15 at the positions of ltau-tau/2 (l represents a positive integer and tau the pitches of teeth) respectively. Teeth 14 are arranged to teeth 12 and teeth 15 to teeth 13 at the positions of mtau-tau/4+ or -alpha (m represents a positive integer and 0

20. 发明专利

JPS614460A LINEAR PULSE MOTOR 失效
公开(公告)号：JPS614460A
公开(公告)日：1986-01-10
申请号：JP12346084
申请日：1984-06-14
申请人： FUJITSU LTD
发明人： KOBAYASHI MUTSUJI , WATANABE TOSHIHIKO
IPC分类号： H02K41/03
摘要： PURPOSE:To obtain functions of high positioning accuracy with small size and high thrust by suitably varying the height between a rotor shaft of a movable element with a piezoelectric unit and the supporting surface in response to the moving mode of the element. CONSTITUTION:A linear pulse motor has a movable element 101, a stator 103 and a roller 106, generates an adhesive force between the element 101 and the stator 103 by a magnetic force based on the bias magnetic flux of a permanent magnet 51 to that the force becomes larger as the gap 105 is smaller. In this case, a plurality of laminated piezoelectric unit 209 is mounted between the roller shaft 107 of the element 101 and the roller shaft supporting surface 108 of the element 101, and the size of the gap 105 is varied by increasing or decreasing the applied voltage V to the unit 209. Thus, when the element 101 is moved, the gap 105 is reduced to obtain a large thrust, and the gap 105 is increased immediately before stopping to reduce the frictional force, thereby obtaining high stopping positional accuracy.

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