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1. 发明专利

JP2004153925A Ferromagnetic plate and eddy current type reduction gear 审中-公开
公开(公告)号：JP2004153925A
公开(公告)日：2004-05-27
申请号：JP2002316003
申请日：2002-10-30
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： TANI YASUTOKU , IMANISHI KENJI
IPC分类号： H02K49/02 , H02K49/10
摘要： PROBLEM TO BE SOLVED: To provide a ferromagnetic plate and an eddy current type reduction gear that increase the density of a line of magnetic force that goes toward a rotor from a permanent magnet via a pole piece, increase the density of a line of magnetic force that enters the rotor from the rear rotational side of the pole piece, make the line of magnetic force from the permanent magnet easily enter the rotor via the pole piece, make the line of magnetic force from the rotor easily enter the pole piece, and improve braking torque particularly when braking.
SOLUTION: The pole piece 4 is arranged so as to oppose the permanent magnets 5, 5a and 5b of the eddy current type reduction gear. Between external and internal peripheries of the pole piece 4, throttled parts 4a each having a cross section smaller than the internal peripheral surface, or than the external peripheral surface, or than the area of the external peripheral surface are formed at either the external periphery or the internal periphery. A forward protrusion 4c and a backward protrusion 4b are formed for braking, which are formed such that forward and backward external peripheral sides facing traveling directions of rotations of the rotors 2a, 2b are flatly protruded. A projected shape viewed from the upper side of a main surface is spread toward the front side or the backside facing the traveling directions of the rotations.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JPH11196563A MAGNETIZING DEVICE OF MAGNET FOR EDDY CURRENT GENERATED RETARDER AND MAGNETIZING METHOD USING THE SAME 失效
公开(公告)号：JPH11196563A
公开(公告)日：1999-07-21
申请号：JP35915797
申请日：1997-12-26
申请人： SUMITOMO METAL IND
发明人： TANI YASUTOKU , ARAKI KENJI
IPC分类号： B60L7/28 , H01F13/00 , H02K15/03 , H02K49/02 , H02K49/10
摘要： PROBLEM TO BE SOLVED: To magnetize non-magnetized magnet materials while they are fixed to a support ring. SOLUTION: A magnetizing device of a magnet for an eddy current generated retarder has a magnetizing coil 13 having a plurality of cores 13a protruding from the inner side of a cylindrical unit toward the center of the cylindrical unit and conductors 13b wound on the respective cores so as to make the inner surfaces of the adjacent cores have different polarities; a cylindrical yoke 14 provided in the magnetizing coil concentrically; and a space 15 into which a plurality of non-magnetized magnet materials can be inserted and which are formed between the magnetizing coil 13 and the yoke 14. The plurality of non-magnetized magnet materials are fixed to the circumferential part of a cylindrical support ring and inserted into the space 15. A current is applied to the magnetizing coil so as to make the adjacent polarities opposite to each other, and the plurality of magnet materials are magnetized simultaneously.

3. 发明专利

JP2004080988A Eddy current reduction gear 审中-公开
公开(公告)号：JP2004080988A
公开(公告)日：2004-03-11
申请号：JP2003284867
申请日：2003-08-01
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： HIRAMATSU SHINICHIRO , TANI YASUTOKU , NOGUCHI YASUTAKA , FUKUI KUNIHIRO
IPC分类号： H02K49/02 , H02K49/10
摘要： PROBLEM TO BE SOLVED: To provide an eddy current reduction gear that is superior in a braking efficiency by enhancing the conductivity of a braking disk and increasing the magnetic flux density thereof.
SOLUTION: The eddy current reduction gear includes a braking disk mounted on a rotatry shaft, a guide cylinder supported by a non-rotating part and arranged as opposed to the main surface of the braking disk, a holding member that is housed in the interior of the guide cylinder and is movable in an approaching direction to the braking disk and in a departing direction therefrom, and a plurality of permanent magnets disposed on the surface of the holding member as opposed to the main surface of the braking disk, with the magnet poles of adjacent magnetic pole faces kept opposite to each other in direction and the magnetic pole faces facing the main surface of the braking disk. The eddy current reduction gear is of a small-sized and light-weight type, wherein the surface of the braking disk opposed to the permanent magnets is made up of a member having a high conductivity, and a protruding portion is provided on the portion of the braking disk surface opposed to the permanent magnets.
COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2004072851A Eddy current reduction gear 审中-公开
公开(公告)号：JP2004072851A
公开(公告)日：2004-03-04
申请号：JP2002226699
申请日：2002-08-02
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： TASAKA MASAHIRA , IMANISHI KENJI , TANI YASUTOKU , MIYAHARA MITSUO , NOGUCHI YASUTAKA
IPC分类号： F16D65/18 , H02K49/10 , F16D65/21
摘要： PROBLEM TO BE SOLVED: To provide excellent magnetic efficiency capable of allowing miniaturization and light weight, and to reduce the leakage of magnetic flux even at non-braking with a minimum switching stroke. SOLUTION: The eddy current reduction gear is a "magnet pole face opposing type" or "polepieceless type". A guide tube is made of a ferromagnetic body and at least a part of a wall is thin. A magnetic circuit shielding part is provided at the end face of the guide tube composed of a recess or a through part with a non-magnetic body preferred to be embedded. The guide tube is preferred to be provided with a reinforcing member. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2003319637A Small and light eddy current speed reducer 有权
标题翻译：小和轻EDDY电流减速器
公开(公告)号：JP2003319637A
公开(公告)日：2003-11-07
申请号：JP2002121569
申请日：2002-04-24
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NOGUCHI YASUTAKA , MIYAHARA MITSUO , TANI YASUTOKU
IPC分类号： H02K49/02 , H02K49/10
摘要： PROBLEM TO BE SOLVED: To provide a small and light eddy current speed reducer by reducing power required for switching to nonbraking and compactifying an apparatus.
SOLUTION: This small and light eddy current speed reducer is provided with a braking disc attached to a rotary shaft, a guide cylinder supported by a nonrotating section, a retaining ring capable of shifting back and forth in the direction of the rotary shaft, a plurality of permanent magnets arranged so that their magnetic poles adjoining each other in the circumferential direction are set facing each other, and a ferromagnetic material. A magnet-supporting plate mounted with each permanent magnet is attached tiltably to the retaining ring, or the retaining ring is divided into a plurality of segments in the circumferential direction, and they are tiltably constituted in the direction of the rotary shaft.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：通过减少切换到非制动和压实设备所需的功率来提供小而轻的涡流减速器。
解决方案：这种小而轻的涡流减速器设置有附接到旋转轴的制动盘，由非旋转部支撑的引导圆筒，能够沿着旋转轴的方向前后移动的保持环设置为使得它们在圆周方向上彼此相邻的磁极彼此相对设置的多个永磁体和铁磁材料。安装有每个永久磁铁的磁铁支承板可倾斜地安装在保持环上，或者保持环在圆周方向上分成多个段，并且它们沿旋转轴的方向可倾斜地构成。版权所有（C）2004，JPO

6. 发明专利

JP2004048978A Eddy-current reduction gear 审中-公开
标题翻译： EDDY电流减速齿轮
公开(公告)号：JP2004048978A
公开(公告)日：2004-02-12
申请号：JP2003023175
申请日：2003-01-31
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： IMANISHI KENJI , NOGUCHI YASUTAKA , HIRAMATSU SHINICHIRO , TANI YASUTOKU , YAMAGUCHI HIROYUKI , TASAKA MASAHIRA , SAITO AKIRA , MIYAHARA MITSUO
IPC分类号： H02K49/10 , H02K49/02
摘要： PROBLEM TO BE SOLVED: To provide an eddy-current reduction gear which is of simple structure and yet excellent in braking efficiency, and is small in switching stroke and capable of high-speed switching.
SOLUTION: The eddy-current reduction gear comprises a braking disk coupled with a rotating shaft; a plurality of permanent magnets disposed so that their magnetic pole faces are opposed to the braking disk; and a driving mechanism which moves a plurality of the permanent magnets close to and away from the braking disk. Preferably, the eddy-current reduction gear further comprises a guide cylinder which is supported on a non-rotational structural portion that is not connected with the rotating shaft, houses a retaining ring, and is disposed opposite to the braking disk. The guide cylinder is provided with a ferromagnetic material in a position opposite the braking disk. Or, the whole of the guide cylinder, including its end face opposed to the permanent magnets, is formed of a nonmagnetic material.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种结构简单，制动效率优良的涡流减速装置，开关行程小，能够进行高速切换。解决方案：涡流减速齿轮包括与旋转轴联接的制动盘; 设置成使得它们的磁极面与制动盘相对的多个永磁体; 以及驱动机构，其使多个永久磁铁移动到靠近和远离制动盘的位置。优选地，涡流减速装置还包括：导向圆筒，其被支撑在不与旋转轴连接的非旋转结构部分上，容纳保持环，并且与制动盘相对设置。引导筒在与制动盘相对的位置设有铁磁材料。或者，包括其与永磁体相对的端面的整个导向筒由非磁性材料形成。版权所有（C）2004，JPO

7. 发明专利

JP2004007973A EDDY CURRENT REDUCTION GEAR AND ITS MANUFACTURING METHOD 审中-公开
公开(公告)号：JP2004007973A
公开(公告)日：2004-01-08
申请号：JP2003116663
申请日：2003-04-22
申请人： SUMITOMO METAL IND
发明人： HIRAMATSU SHINICHIRO , TANI YASUTOKU , IMANISHI KENJI , TASAKA MASAHIRA , FUKUI KUNIHIRO
IPC分类号： H02K49/10 , H02K49/02
摘要： PROBLEM TO BE SOLVED: To provide an eddy current reduction gear which is easy of weight reduction and compactification with simple structural design and exhibits excellent braking efficiency. SOLUTION: This eddy current reduction gear is equipped with a braking disc which is attached to a rotating shaft, a guiding tube which is arranged in opposition to the main face of the above braking disc being supported by a non-rotating part, a retention member which can shift in the direction of approaching the above braking disk and the direction of going away from it stored in the above guiding tube, a plurality of permanent magnets which are arranged with the magnetic poles of their adjacent magnetic pole faces reverse to each other and besides with their magnetic pole faces in question facing the main face of the above brake disc on the face opposed to the main face of the above braking disc of the above retention member, and ferromagnetic materials which are provided at the end face of the above guiding tube so as to oppose the above permanent magnets. These are an eddy current reduction gear excellent in braking efficiency which is characterized by enlarging the density of magnetic flux at the braking disc by providing itself, with a high conductivity region having conductivity higher than that of the member mainly constituting the braking disc, or forming a cover layer on this high conductivity region, or constituting a projection, and its manufacturing method. COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2002233196A CONTROL METHOD FOR BRAKING FORCE OF EDDY-CURRENT REDUCTION GEAR 失效
公开(公告)号：JP2002233196A
公开(公告)日：2002-08-16
申请号：JP2001020455
申请日：2001-01-29
申请人： SUMITOMO METAL IND
发明人： TANI YASUTOKU , YAMAGUCHI HIROYUKI , TASAKA MASAHIRA
IPC分类号： H02P15/00
摘要： PROBLEM TO BE SOLVED: To reduce the cylinder diameter of a three-position operating actuator on its braking off side. SOLUTION: This control method is for controlling the braking force of an eddy-current reduction gear with the three-position operating actuator 10. By the method, a vehicle speed is incorporated into a control circuit, and a control is performed such that an operation signal to intermediate braking from braking ON is not outputted if the incorporated vehicle speed is low. Thus, the cylinder diameter of the three-position operating actuator on the braking off side can be reduced for high on-vehicle mountability and the need for an excessive air is eliminated.

9. 发明专利

JP2002223557A ACTUATOR OF EDDY CURRENT TYPE DECELERATION DEVICE 失效
公开(公告)号：JP2002223557A
公开(公告)日：2002-08-09
申请号：JP2001019204
申请日：2001-01-26
申请人： SUMITOMO METAL IND
发明人： TANI YASUTOKU , KISHINE NOBUNAO , KONO KEIICHI
IPC分类号： H02K49/10
摘要： PROBLEM TO BE SOLVED: To inhibit decrease in generation damping force, after long braking. SOLUTION: The actuator 1 composes the ON/OFF switching device of an eddy current type deceleration device. A coil spring 2 having a smaller biasing force than required maximum needed force at the projection end point of a piston rod 1b of the actuator 1, immediately after braking, is on is included at the tip section of the piston rod 1b of a cylinder 1a in the actuator 1. Movement from the damping off position to the projection operation end point of the piston rod 1b of the actuator 1 is made with the actuator 1, and the remaining movement are made by extension from the compressed state of the coil spring 2 up to the free length, thus inhibiting decrease in generated braking force after long braking, without increasing the initial damping force more than necessary.

10. 发明专利

JP2002101639A ACTUATOR FOR EDDY CURRENT REDUCTION GEAR 失效
公开(公告)号：JP2002101639A
公开(公告)日：2002-04-05
申请号：JP2000288669
申请日：2000-09-22
申请人： SUMITOMO METAL IND
发明人： TANI YASUTOKU , KONO KEIICHI
IPC分类号： H02K49/02
摘要： PROBLEM TO BE SOLVED: To materialize the thrust which secures holding stability at a partial braking position without requiring excessive air and make its exterior size small to mount on any eddy current reduction gear. SOLUTION: An actuator 31 constitutes an ON-OFF switchover device of an eddy current reduction gear R or R'. Two free pistons 34a, 34b are fitted on a piston rod 32 of which one side is inserted into a cylinder 33 and the other side is protruded from the cylinder 33 relatively free to move. Stoppers 32a, 33a are respectively disposed between both free pistons 34a, 34b which are located at a middle position of the inner peripheral surface of the cylinder 33 which fits in two free pistons 34a, 34b and in the middle position of the piston rod 32.

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