| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Rotational coupling device | US11150670 | 2005-06-10 | US20060278491A1 | 2006-12-14 | James Pardee |
| A rotational coupling device for use as a clutch and/or brake is provided having improved magnetic efficiency and structural integrity. An electrical conduction assembly is disposed within a field shell between radially spaced inner and outer poles of the field shell. The assembly includes a conductor disposed within a shell having a radially extending flange that is disposed proximate the outer pole of the field shell and that is affixed to the field shell at a plurality of points. | ||||||
| 182 | Electromagnetic friction disk clutch | US10987936 | 2004-11-12 | US07143885B2 | 2006-12-05 | Rainer Krafft |
| An electromagnetically operable friction disk clutch having a electromagnet as well as having a rotor and an armature element to which the electromagnet can apply a magnetic field for interaction of the rotor and armature element, the armature element being arranged on a resting means which moves the armature element along a rotation axis of the rotor by magnetic force through a movement distance to a stop position on the rotor, and returns elastically without any magnetic forces to a position in which the armature element and the rotor can move, with respect to one another, without touching. According to the invention the resetting means comprise not only an elastic component but also a plastic component which at least partially compensates for the increase in the original movement distance resulting from wear by plastic deformation of the resetting means. | ||||||
| 183 | Electromagnetic clutch | US11392619 | 2006-03-30 | US20060219512A1 | 2006-10-05 | Tomonori Matsumura; Hirokazu Ichinose |
| In this electromagnetic clutch, only each of the plate springs is connected to the second rotor by first connecting members. Therefore, each of the first holes of the plate springs is accurately positioned to the position of each of the second holes of the extended portion. That is, it is not necessary to provide a useless gap between the first connecting members and the each of the holes. Also, the extended portion of the second rotor is opposed to the armature plate in the axial direction. Therefore, the inner diameter of the armature plate can be formed small irrespective of the extended portion. | ||||||
| 184 | Disc and hub assembly for electromagnetic clutch in a compressor | US10863286 | 2004-06-09 | US07044284B2 | 2006-05-16 | Jangsoon Shin; Eungi Son |
| The present invention relates to a disc and hub assembly for an electromagnetic clutch of a compressor. The assembly comprises: a disc (120) adapted to be attracted to or separated from a friction surface of a pulley under the action of an electromagnetic coil; a hub (110) coupled to a driving shaft of the compressor, the hub penetrating the disc (120) and having a flange (112) formed on its outer peripheral surface; a plate spring (130) which includes a plate portion (131) coupled to the top surface of the disc (120), a number of leaf spring portions (135) obliquely extending inwardly from the plate portion (131) to be coupled to the flange (112) of the hub (110) and having ends (137) which are bent toward the disc (120), and dampers (160) coupled to the ends of the leaf spring portions (135); and a shock-absorbing member (140) interposed between the disc (120) and the plate portion (131) to reduce noise and impact during on/off of the clutch. | ||||||
| 185 | Electromagnetic clutch assembly | US10860367 | 2004-06-03 | US20050269182A1 | 2005-12-08 | Jonathan Hammond; Stephen Covert; James 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. | ||||||
| 186 | Electromagnetic friction disk clutch | US10987936 | 2004-11-12 | US20050155834A1 | 2005-07-21 | Rainer Krafft |
| An electromagnetically operable friction disk clutch having a electromagnet as well as having a rotor and an armature element to which the electromagnet can apply a magnetic field for interaction of the rotor and armature element, the armature element being arranged on a resting means which moves the armature element along a rotation axis of the rotor by magnetic force through a movement distance to a stop position on the rotor, and returns elastically without any magnetic forces to a position in which the armature element and the rotor can move, with respect to one another, without touching. According to the invention the resetting means comprise not only an elastic component but also a plastic component which at least partially compensates for the increase in the original movement distance resulting from wear by plastic deformation of the resetting means. | ||||||
| 187 | DIRECT METHOD OF TERMINATING THE GROUND COIL TERMINAL TO COIL HOUSING | US10441594 | 2003-05-20 | US20040231949A1 | 2004-11-25 | Anh Le; Jonathan K. Hammond |
| The subject invention improves the electrical connection in a clutch assembly for engaging a compressor in a vehicle air conditioning system. In accordance with the subject invention, a tab extends from the mounting plate and the second end of the ground lead is frictionally retained between the tab and the core winding housing. This is accomplished by turning a tab out of the plane of a mounting plate, placing the second end of the ground lead under the tab and bending the tab downwardly to clamp the second end of the ground lead between the tab and the core winding housing to frictionally retain the second end of the ground lead between the tab and the core winding housing. | ||||||
| 188 | Rotation support apparatus for compressor pulley | US10639353 | 2003-08-12 | US06793397B2 | 2004-09-21 | 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. | ||||||
| 189 | Electro-magnetic clutch pulley | US10185253 | 2002-07-01 | US20040000460A1 | 2004-01-01 | 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. | ||||||
| 190 | Coil-rotation type electromagnetic clutch | US09450701 | 1999-11-30 | US06286650B1 | 2001-09-11 | Yasuo Tabuchi; Toshihiro Hayashi |
| In order to reduce an electromagnetic clutch in an axial size, a ring-shaped leaf spring connects an armature to a hub. The leaf spring has an outer ring portion connected to the armature, an attachment portion connected to the hub and located inner than the outer ring portion, and a connecting portion for connecting the outer ring portion and the attachment portion. A plurality of rivets of the armature are disposed at the outer ring portion. An embossed portion for generating an initial deflection on the leaf spring is disposed at an intermediate portion between the rivets in the circumferential direction of the outer ring portion. | ||||||
| 191 | Electromagnetic clutch | US944731 | 1997-10-06 | US5944158A | 1999-08-31 | Michio Okazaki |
| There is provided an electromagnetic clutch which is capable of reducing a variation in torque (reaction force) from a refrigerant compressor. The electromagnetic clutch includes a hub rigidly fitted on a drive shaft, the hub having a flange portion, a rotor which rotates about the drive shaft, a magnetic coil arranged within the rotor, an armature plate which is attracted into abutment with the rotor when the magnetic coil is energized, and a plurality of spring members interposed between the flange portion of the hub and the armature plate along a circumference of the rotor, for connection between the flange portion of the hub and the armature plate. The armature plate comprises a rotor-side annular disk axially opposed to the rotor with a predetermined axial gap therebetween, a spring-side annular disk arranged on a spring member side of the rotor-side disk in a manner axially opposed to the rotor-side annular disk, and an elastic body interposed between the rotor-side annular disk and the spring-side annular disk in a manner such that the elastic body is joined to the rotor-side annular disk and the spring-side annular disk. | ||||||
| 192 | Electromagnetic clutch | US358313 | 1994-12-19 | US5560464A | 1996-10-01 | 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. | ||||||
| 193 | Electromagnetic clutch | US194287 | 1994-02-10 | US5445256A | 1995-08-29 | Yasuo Tabuchi; Masashi Tobayama; Junichi Ohguchi; Akira Kishibuchi |
| An electromagnetic clutch capable of reducing a noise generated upon contact of an armature with rotor. Connecting member 20 for connecting inner and outer rings 5a and 5b of the armature are integrally formed with arms 19 extending radially inwardly from locations where the connection members 20 are connected to the inner ring 5a by rivets 12. The arms 17 are in face to face contact with an elastic member 18 made of rubber, which is held by the inner hub 7 by means of a retainer 19. Upon the movement of the armature 5 toward to rotor 4 by means of an electromagnetic force, just before the contact of the armature 5 with the rotor 4, a steep increase in a force for opposing the movement of the armature 5 with respect to the rotor 4 is obtained, thereby reducing an impact upon the contact, and reducing the noise. | ||||||
| 194 | Electromagnetic clutch with an adjusting means for adjusting a substantial length of a leaf spring which is for supporting an armature plate | US425872 | 1989-10-24 | US5080213A | 1992-01-14 | Yoshitaka Sunaga |
| In an electromagnetic clutch comprising a plurality of leaf springs for supporting an armature plate (18) to a shaft (14) so that the armature plate (18) faces a pulley (16) in an axial direction with a gap left therebetween, each of the leaf springs has a substantial length which is adjusted in response to a size of the gap. This results in changing of a spring constant of each of the leaf springs. When the armature plate is moved towards the pulley, the size of the gap becomes gradually small. Simultaneously, the armature plate is subjected to a suction force which acceleratingly increases in response to decreasing of the size of the gap. However, it is possible to reduce a noise which is generated when the armature plate is attracted to the pulley. This is because the armature plate comes into soft collision with the pulley. | ||||||
| 195 | Electromagnetic clutch | US596538 | 1990-10-12 | US5046594A | 1991-09-10 | Katsuhiko Kakinuma |
| A clutch is disclosed which includes an electromagnetic drive mechanism. A hub is frictionally secured on a drive shaft and has a flange portion radially extending from its outer peripheral surface. An annular armature plate is coupled to the flange and spaced from an axial end surface of the rotor. A plurality of threaded holes are formed in the flange portion of the hub to permit the use of a tool which detachs the hub from the drive shaft. An annular plate is disposed at an inner surface of the flange portion of the hub to cover the plurality of holes so that water from the outside of the electromagnetic clutch is prevented from entering through the holes. Thus, corrosion of internal parts is prevented and clutch life and performance are enhanced. | ||||||
| 196 | Electromagnetic clutch | US67880 | 1987-06-30 | US4804075A | 1989-02-14 | Takatoshi Koitabashi |
| An electromagnetic clutch for an automotive air conditioning system is disclosed. The electromagnetic clutch includes a rotor, an electromagnetic coil, and an armature plate. A hub is secured to a drive shaft and has a radially extending flange portion which is provided with a plurality of pairs of first projecting portions. A damper plate is disposed forwardly of the armature plate so as to be connected with the armature plate through a plurality of leaf springs and is provided with a plurality of second projecting portions and longitudinal holes on the axial end surface thereof. Each pair of the first projecting portions can be disposed within each pair of the second projecting portions with a gap therebetween that may accommodate one of a plurality of elastic members. A stopper plate is disposed on the axial end surface of the damper plate and may be radially moved within the range of the longitudinal holes which are provided therein. Therefore, torsional resonance, shock and vibration are eased by the principally compressive deformation of the elastic member which is enclosed within the space between the first and second projecting portions. | ||||||
| 197 | Electromagnetically controlled spring clutch mechanism | US653183 | 1984-09-21 | US4570768A | 1986-02-18 | Kouzou Nishimura; Kazumi Iida |
| An electromagnetically controlled spring clutch mechanism for selectively connecting drivingly a first rotating element and a second rotating element. The spring clutch mechanism comprises a rotating shaft, a rotor adapted to be rotated as a unit with the rotating shaft, an armature assembly including an armature member, a supporting member and a biasing spring member disposed between the armature member and the supporting member, an electromagnetic device for magnetically attracting the armature member to the rotor, a first boss member adapted to rotate as a unit with the rotating shaft, a second boss member adapted to rotate as a unit with the second rotating element, and a coil spring wound in a predetermined direction and received about, and spanning, the first and second boss members. Also provided is a composite magnetically controlled spring clutch assembly for selectively connecting drivingly an input rotating element rotated in a predetermined direction to an output rotating element to rotate the output rotating element selectively in the predetermined direction or in a direction opposite to the predetermined direction, which is composed of two electromagnetically controlled spring clutch mechanisms of the first-mentioned type. | ||||||
| 198 | Two speed, two pulley compressor drive clutch | US562193 | 1983-12-15 | US4564092A | 1986-01-14 | William C. Pierce |
| An electromagnetic drive clutch for the compressor in an air conditioning system for a bus used both in the city and in over-the-road operation incorporating two drive pulleys of different diameters, concentrically arranged armatures connected with the respective pulleys by a spring assembly, concentrically arranged coil assemblies and a common rotor associated with the coil assemblies and armatures to selectively drive the rotor from the smaller or larger pulley thereby varying the drive speed of the compressor and thus varying the output characteristics of the compressor to enable adequate cooling to be provided for the interior of the bus during over-the-road movement when the engine speed of the bus is relatively high and also adequate cooling during city driving when the engine speed of the bus is relatively low. The specific structural arrangement of the components of the drive clutch enables effective installation in new construction and also easy retrofit onto existing air conditioning compressors for buses with the specific construction and orientation of the components and their functional relationship being different from existing drive clutches for air conditioning compressors. | ||||||
| 199 | Armature assembly for electromagnetic coupling | US330610 | 1981-12-14 | US4445606A | 1984-05-01 | Kalvin G. Van Laningham |
| An armature of an electromagnetic clutch is connected to a mounting plate which is coupled to the toothed driven hub of the clutch through the intermediary of an elastomeric spider. If the spider is melted by heat, the mounting plate wedges against the tips of the teeth of the hub and is prevented from flying axially off of the forward end of the hub. | ||||||
| 200 | Clutch engageable/disengageable by momentary energization of solenoid means | US361809 | 1982-03-25 | US4391356A | 1983-07-05 | Toji Takemura; Kenzo Hirashima |
| An electromagnetic clutch includes a mechanism which is responsive to a first short energization of an electromagnet thereof to cause a spring arrangement therein to snap to a reverse configuration wherein it holds the clutch engaged until a second short energization with a current larger than that used for the first energization, whereupon the mechanism again reverses the configuration of the spring and subsequently causes the clutch to disengage. | ||||||
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