| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | CLUTCH MECHANISM | US12953999 | 2010-11-24 | US20110127136A1 | 2011-06-02 | Shigeyoshi SAKURABA; Yasuo Tabuchi |
| A clutch mechanism includes a pulley, an armature, an electromagnet, a plate spring, and a damper. The armature is joined to the pulley in a direction of a rotation axis. The electromagnet generates attracting magnetic force, which attracts the armature in a joining direction. The plate spring generates resilient force, which urges the armature in an opposite direction from the joining direction. The damper includes an impact mitigation part mitigating an impact when the armature collides with the pulley. The pulley, the armature, the damper, and the plate spring are arranged in this order in the direction of the rotation axis. The damper includes a contact portion in contact with part of the armature in the direction of the rotation axis. The plate spring includes a pressing part pressing the contact portion on the armature both at time of joining and at time of unjoining between the armature and the pulley. | ||||||
| 42 | Rotational coupling device | US11150671 | 2005-06-10 | US07493996B2 | 2009-02-24 | James A. Pardee |
| A rotational coupling device for use as a clutch and/or brake is provided having improved magnetic efficiency and structural integrity. A field shell and a rotor of the device each define radially spaced, axially extending inner and outer poles. The inner pole of the rotor is disposed radially outwardly of the inner pole of the field shell resulting in improved magnetic efficiency. | ||||||
| 43 | Electromagnetic clutch | US10923823 | 2004-08-24 | US07311188B2 | 2007-12-25 | Motoaki Yoshida; Hirokazu Ichinose; Isamu Shirai; Shigeru Ito; Takao Shimoyama |
| An electromagnetic clutch for separably coupling a drive source and a rotary shaft has a rotor to be disposed in the outside of the rotary shaft concentrically therewith. The rotor is rotated by a drive source and accommodates an electromagnetic coil. The electromagnetic clutch has an armature plate that is attracted toward the rotor by an electromagnetic force generated by the electromagnetic coil so as to adhere to the rotor. Furthermore, the electromagnetic clutch has a coupler for coupling the armature plate and the rotary shaft to each other. The coupler includes a center part to be coupled to the rotary shaft and an elastically-deformable outer part for coupling the center part to the armature plate, the outer part being extended from the center part and elastically deformed when the armature plate is attracted to the rotor. | ||||||
| 44 | Electromagnetic clutch | US11391490 | 2006-03-29 | US20060219514A1 | 2006-10-05 | Tomonori Matsumura; Hirokazu Ichinose |
| In this electromagnetic clutch, a compressive force is generated in a plate spring when an armature plate is contact with a first rotor. Therefore, a force in the direction away from the first rotor acts on a first bent portion of a plate spring. However, an extension portion of a second rotor is capable of abutting to the first bent portion from the direction opposite to the first rotor. So a stress generated in the first bent portion is dispersed to the extension portion. | ||||||
| 45 | Electromagnetic clutch for compressor | US11373962 | 2006-03-14 | US20060204370A1 | 2006-09-14 | Tomonori Matsumura; Hirokazu Ichinose |
| When an armature plate is attracted to a rotor so that the turning force of the rotor is transmitted to the armature plate, the turning force of the armature plate is transmitted to a main shaft via a plate spring. An angle (hereinafter referred to as a slope angle) formed between the plate spring and the armature plate is set so as to be not smaller than 10° and not larger than 63°. Therefore, since the slope angle is larger than the slope angle (about 30) of the general electromagnetic clutch, the torque increase effect increases about 5 percent as compared with the general electromagnetic clutch, and also an excessive pressing force of the plate spring does not develop. | ||||||
| 46 | Electromagnetic clutch for compressor | US11369835 | 2006-03-08 | US20060201770A1 | 2006-09-14 | Tomohiro Yamaguchi; Takahiro Ohta |
| The present invention provides an electromagnetic clutch for compressor which can reduce magnetic resistance between a core ring and a rotor without reducing a gap in the radial direction between the core ring and the rotor. In the present invention, since an opposite face portion 16b opposed to the other end face in the axial direction of the pulley portion 11a of a rotor 11 is provided on a core ring 16 with a gap through which magnetism can communicate so as to form a flow of the magnetism from the opposite face portion 16b to the pulley portion 11a and the other end face in the axial direction of the pulley portion 11a and the opposite face portion 16b of the core ring 16 are formed perpendicularly to the axial center of the rotor 11, respectively, the opposite face portion 16b of the core ring 16 and the other end face in the axial direction of the pulley portion 11a are not brought into contact with each other even if deflection of the pulley portion 11a or displacement of axial center is generated, by which a gap between the opposite face portion 16b and the pulley portion 11a can be reduced. | ||||||
| 47 | Electromagnetic clutch for compressor | US11361000 | 2006-02-24 | US20060201769A1 | 2006-09-14 | Takao Shimoyama; Yoshiyuki Suda |
| The present invention provides an electromagnetic clutch for compressor which can align axial centers of a core ring and a rotor with high accuracy. In the present invention, since a support portion 22c for supporting a rotor 11 is provided integrally on a core ring 22, the core ring 22 can be formed coaxially with the support portion 22c, and the rotor 11 supported by the support portion 22c and the core ring 22 can be arranged on the same axial center without separate alignment. In this case, since a fixed portion 22b is engaged with an engagement portion 4c of a compressor body 4 so that movement in the radial direction is regulated, the core ring 22 is not displaced in the radial direction with respect to the compressor body 4, and the axial centers of the core ring 22 and a rotational axis 1 can be aligned with high accuracy. By this, a gap G between the core ring 22 and the rotor 11 can be made smaller, and the permeability between the core ring 22 and the rotor 11 can be improved. | ||||||
| 48 | Electromagnetic clutch assembly | US10860367 | 2004-06-03 | US07025187B2 | 2006-04-11 | Jonathan K. Hammond; Stephen M Covert; James C Wright |
| An electromagnetic clutch assembly of the leaf spring type has leaf springs the inner ends of which are fixed to a drive plate by conventional rivets, and the outer ends of which are fixed to the armature plate by special rivets having enlarged diameter shanks that extend through clearance holes in overlaying portions of the drive plate. Rubber damper rings are trapped beneath an enlarged head of the rivet, against the outer surface of the driver plate, without intruding into the radial clearance. The clearance holes allow the rubber rings to compress freely as the leaf springs flex when the clutch is activated. During operation, the transmission of torsional vibrations back through the drive plate and springs to the armature plate is dampened by the compressed rubber rings. | ||||||
| 49 | Electro-magnetic clutch pulley | US10185253 | 2002-07-01 | US06786316B2 | 2004-09-07 | Richard Jacobson; Russell Monahan |
| A clutch pulley for selectively engaging a belt of a first device and a shaft of a second device, including a sheave member, an electromagnetic coil, a flex plate, and a ring member. The sheave member includes a sheave belt surface adapted to engage the belt and a sheave clutch surface. The electromagnetic coil is adapted to selectively create an electromagnetic flux. The flex plate includes a flex inner section concentrically coupled over the shaft, a flex outer section adapted to selectively move between two axial positions relative to the flex inner section based upon the presence of the electromagnetic flux, and a flex spoke section connecting the flex inner section and the flex outer section. The ring member is connected to the flex outer section and includes a ring clutch surface adapted to selectively engage the sheave clutch surface based upon the axial position of the flex outer section. | ||||||
| 50 | Rotation support apparatus for compressor pulley | US09957685 | 2001-09-20 | US06659649B2 | 2003-12-09 | Hiroshi Ishiguro; Hideo Ouchi; Masato Taniguchi |
| A radial ball bearing 14 of the three point contact type or four point contact type is used for the rolling bearing for a compressor pulley. The offset amount &dgr;, that is the axial distance between the center &agr; of the radial load applied to the follower pulley 4 from the endless belt 11, and the center &bgr; of the radial ball bearing 14 is 40% or less of the diameter of the pitch circle. In addition, the radial clearance of the radial ball bearing 14 is 0.2% or less of the diameter of the pitch circle. With this construction, the durability of the rolling bearing to support the follower pulley 4 is secured while made compact. | ||||||
| 51 | Disk and hub assembly for electromagnetic clutch and method for manufacturing the same | US10370120 | 2003-02-19 | US20030155208A1 | 2003-08-21 | Jong Myung Seok; Yeon Kyong Choi; Heung Woo Park |
| A disk and hub assembly for an electromagnetic clutch, comprising: a plate including a stopper, which is projected from a face thereof and having a bolt through hole, and an inner ring portion folded from the outer periphery of the plate; a hub including a hub body, which is perforated through both ends and has a coupling hole to be coupled to a drive shaft of a compressor, a seating space for receiving and seating the stopper and a flange outwardly extended from an end of the hub body to be coupled to the plate; an outer including an outer ring portion surrounding the inner ring portion at a predetermined interval and a flange outwardly and angularly folded from the outer ring portion; a damper rubber received between the inner ring portion and the outer ring portion; and a disk coupled to the flange of the outer. | ||||||
| 52 | Armature for a selectively engageable and disengageable coupling | US10027095 | 2001-12-20 | US06557236B2 | 2003-05-06 | Charles A. Boyer; Jeffrey C. Steiner |
| An armature for a selectively engageable and disengageable coupling and a method of making the armature are provided. The armature includes a substantially annular body that is disposed about a first axis. The body may be formed by stamping or fine-blanking. One side of the body is hardened through a nitriding process. A grinding wheel is then applied at an angle to the same side of the body along a diametrical line of the body extending perpendicular to the first axis. As a result, the body is configured so that the thickness of the body increases as the distance from the diametrical line increases. In particular, the thickness of the body varies along each cross-section taken along the line from a minimum thickness at the innermost portion of the cross-section to a maximum thickness at the outermost portion of the cross-section. The inventive armature reduces galling, and the resulting noise, that occur during burnishing of couplings incorporating the armature. | ||||||
| 53 | Rotation support apparatus for compressor pulley | US09957685 | 2001-09-20 | US20020193195A1 | 2002-12-19 | Hiroshi Ishiguro; Hideo Ouchi; Masato Taniguchi |
| A radial ball bearing 14 of the three point contact type or four point contact type is used for the rolling bearing for a compressor pulley. The offset amount null, that is the axial distance between the center null of the radial load applied to the follower pulley 4 from the endless belt 11, and the center null of the radial ball bearing 14 is 40% or less of the diameter of the pitch circle. In addition, the radial clearance of the radial ball bearing 14 is 0.2% or less of the diameter of the pitch circle. With this construction, the durability of the rolling bearing to support the follower pulley 4 is secured while made compact. | ||||||
| 54 | Electromagnetic clutch | US10021160 | 2001-12-19 | US20020074204A1 | 2002-06-20 | Junichi Nakagawa; Akira Kishibuchi; Satoshi Kawakami; Naoji Konaga; Katsuya Tsuchizu |
| In an electromagnetic clutch, a rotor, an armature and a stator housing including an electromagnetic coil are assembled to a center hub through a bearing member. Therefore, by assembling the center hub to an engine crank shaft, an assembling operation of the electromagnetic clutch to a vehicle is finished. In addition, a stator plate fixed to the stator housing is fixed to an engine through a bushing made of an elastic material. Therefore, a vibration displacement of the stator housing relative to the rotor, generated due to vibration of the engine, can be absorbed. | ||||||
| 55 | Electromagnetic clutch | US09400310 | 1999-09-21 | US06209699B1 | 2001-04-03 | Toshihiro Hayashi; Yasuo Tabuchi; Masashi Tobayama |
| A spring plate member is connected to a hub. The spring plate member includes a plate spring portion generating a resilient force to separate an armature from a rotor, and an outer ring portion, which faces the armature. An elastic member is provided between the armature and the outer ring portion for connecting the armature directly with the outer ring portion. Thus, operation noises of the electromagnetic clutch and a compressor are efficiently reduced. Further, the axial dimension of elastic member can be made much smaller than that of the conventional cylindrical elastic member. | ||||||
| 56 | Electromagnetic coupling apparatus | US590205 | 1996-01-23 | US5667050A | 1997-09-16 | Tomoya Hasegawa |
| An electromagnetic coupling apparatus includes an armature hub, a leaf spring, an armature, a rubber stopper, a fixing member, a rubber vibration insulator, a rotor, an electromagnetic coil, and a field core. The armature hub is fixed to the rotating shaft of a unit and has a flange portion formed with a through hole. The fixing member is fixed to the armature and has a trunk portion and a head portion formed with an annular wall portion on its outer circumference. The rubber vibration insulator is disposed between a side surface of the flange portion of the armature hub and the head portion of the fixing member, and is constituted by a cylindrical portion and a disk portion. The rotor opposes the armature through a first gap of a predetermined size. A second gap larger than the first gap is formed between a distal end of the wall portion of the fixing member and the flange portion of the armature hub, and a third gap is formed between one side surface of the disk portion of the rubber vibration insulator and the side surface of the flange portion of the armature hub. | ||||||
| 57 | Electromagentic compressor clutch with combined torque cushion and armature cooling | US620187 | 1996-03-22 | US5642798A | 1997-07-01 | Hugh James Muirhead; Richard Lee Marker |
| An electromagnetic clutch for an automotive air conditioning compressor supports the armature co axial to, and facing, a pulley friction disk with a novel support structure that self cools the armature, as well as providing a torque cushion. A multi lobed drive plate is welded to a compressor shaft mounted hub, while a similarly shaped armature support disk turns freely on the outer surface of the hub, supporting armature rings on spring fingers co axial and parallel to a belt driven pulley friction disk. The lobes of the drive plate and support disk are aligned in three pairs, with a significant axial gap between, and extend radially over the entire outer face of the armature rings, while leaving most of the outer face exposed to the ambient air. A layer of resilient elastomer is bonded between the aligned lobes of the drive plate and support disk, holding them together, limiting the degree to which the support disk can twist on the hub, and cushioning the shock of initial engagement. The elastomer layer is thick enough that the leading edges thereof disturb ambient air as the rotate, drawing air in and over the armature rings in fan like fashion to cool them. | ||||||
| 58 | Electromagnetic clutch | US469599 | 1995-06-06 | US5575371A | 1996-11-19 | Hideyuki Gonda; Masakatsu Sakaki; Yukimasa Nagai |
| An electromagnetic clutch includes a first rotatable member for connection to an external driving source and a second rotatable member for connection to a driven member. An annular magnetic member is connected to the second rotatable member through a plurality of leaf springs. A third rotatable member is connected to the second rotatable member to limit the axial movement of the annular magnetic member. A plurality of connecting and absorbing devices are fixedly disposed between the annular magnetic member and the third rotatable member. These devices absorb vibration and impact forces when the annular magnetic member is attracted to the first rotatable member. A device is provided for preventing the destruction of the connecting and absorbing device due to the impact force and vibration created upon engagement of the electromagnetic clutch. | ||||||
| 59 | Electromagnetic clutch | US469048 | 1995-06-06 | US5575370A | 1996-11-19 | Hideyuki Gonda; Masakatsu Sakaki; Yukimasa Nagai |
| An electromagnetic clutch includes a first rotatable member for connection to an external driving source and a second rotatable member for connection to a driven member. An annular magnetic member is connected to the second rotatable member through a plurality of leaf springs. A third rotatable member is connected to the second rotatable member to limit the axial movement of the annular magnetic member. A plurality of connecting and absorbing devices are fixedly disposed between the annular magnetic member and the third rotatable member. These devices absorb vibration and impact forces when the annular magnetic member is attracted to the first rotatable member. A device is provided for preventing the destruction of the connecting and absorbing device due to the impact force and vibration created upon engagement of the electromagnetic clutch. | ||||||
| 60 | Electromagnetic clutch | US765444 | 1991-09-25 | US5141090A | 1992-08-25 | William B. Trojan |
| An electromagnetic clutch 10 for transmitting torque includes a field coil assembly 16, a rotor assembly 18 and an armature assembly 20. The field coil assembly 16 includes a toroidal electromagnetic coil 22. The rotor assembly includes a tubular portion 42 mounted on a bearing 36, a ring-shaped section 52 with an attraction surface 54, an outer drum-shaped flange 56 and a drive ring 60. The armature assembly 20 includes an armature hub 62, rubber stops 70, ring-shaped armature 74 and spring steel connecting members 72 connecting the armature to the armature hub. The armature hub 62 includes a central hub 64 with a bore 66 and a stopper plate 68. The bore 66 receives a splined shaft 14 and an air gap adjustment screw 88. A shaft contact surface 94 on the air gap adjustment screw 88 contacts the forward end 96 of a splined shaft 14. The position of the armature hub 62 on the splined shaft 14 and of the armature 74 relative to the attraction surface 54 is changed by rotating the air gap adjustment screw 88 relative to the central hub 64. A plate 106 locks the air gap adjustment screw 88 relative to the central hub 64. A bolt 101 secures the armature assembly 20 to the splined shaft. The armature assembly 20 can be removed from the splined shaft 14 by removing the bolt 101 and screwing a larger bolt into the threaded bore 102. | ||||||
QQ群二维码
意见反馈
意见反馈