| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Terminal connection structure of electromagnetic coupling device | US757166 | 1991-09-10 | US5138293A | 1992-08-11 | Takashi Ishimaru |
| A terminal connection structure of an electromagnetic coupling device includes terminal housing unit, an extraction hole, a flat contact portion, a conductive mount member, and a conductive support member connected to a power source lead line. The terminal housing unit is formed integrally with a resin coil bobbin having an electromagnetic coil therein, and projects from a through hole formed in a yoke having an annular groove in which the resin coil bobbin is press-fitted. The extraction hole is formed in the terminal housing unit to extract one end of a winding of the electrogmagnetic coil. The flat contact portion is formed between a pair of grooves formed on two sides thereof in the terminal housing unit, and one end of the winding extracted from the extraction hole is brought into contact with the flat contact portion. The conductive mount member is press-fitted in one groove of the terminal housing unit to hold a portion of the winding brought into contact with the flat contact portion. The conductive support member is press-fitted in the other groove of the terminal housing unit to hold another portion of the winding brought into contact with the flat contact portion, and abuts against the mount member to hold press-fit states of the both. | ||||||
| 62 | Spring coupling for an electromagnetic clutch | US480286 | 1983-03-30 | US4616742A | 1986-10-14 | Takashi Matsushita |
| An electromagnetic clutch is disclosed which includes a pulley and an electromagnetic coil. A hub is secured on a drive shaft and has a radially extending flange portion which faces the pulley at a predetermined axial gap. An armature plate is disposed in the axial gap between the pulley and the radially extending flange portion of the hub. The armature plate is elastically connected to the flange portion of the hub by a plurality of spring members. The spring members are provided with a pair of fittings radially opposed to one another at a predetermined radial gap to prevent excessive bending of the spring members during initial operation of the electromagnetic clutch. When the armature plate beings to rotate, each spring member bends to reduce the gap between the pair of radially opposed fittings to thereby absorb the impact force. Therefore, the impact force on the drive shaft when the electromagnetic clutch is first actuated is lessened by the bending of the spring members while, at the same time, over bending of the spring members is prevented by the fittings. | ||||||
| 63 | Multiple armature ring and spring mounting arrangement for electromagnetic friction-type clutches and brakes | US147490 | 1980-05-07 | US4337855A | 1982-07-06 | George T. Bennett |
| An electromagnetic friction-type clutch (brake) is provided with a multiple armature ring and spring mounting arrangement which operates to effect an air gap across the flux path during disengagement to dissipate residual magnetism and thereby allow a relatively small release force to complete the disengagement. | ||||||
| 64 | Drive hub with curved springs and drive keys for electro-magnetic clutch | US44775 | 1979-06-01 | US4296851A | 1981-10-27 | William C. Pierce |
| An electromagnetic clutch for transmitting driving torque from one rotatable element to another having particular utility for driving a vane-type compressor used in an automotive air conditioning system in a manner to reduce the cost of such clutches as well as the axial length and weight. The clutch includes a rotatably driven pulley assembly connected to a hub affixed to the input drive shaft of the compressor through an armature disk and friction face on the pulley assembly by selectively energizing and deenergizing a magnetic coil with the armature disk being connected to the hub through a plurality of curved leaf springs and a plurality of drive keys received in recesses or notches with the curved springs replacing the normal flat springs which are used to support the armature disk with the curved springs including a linear flexibility and axial flexibility. The flexibility permits the compressor shaft to yield thereby avoiding binding of the compressor rotor and also provides a significantly shorter clutch assembly by eliminating a rubber "sandwich" hub assembly which is especially important in smaller automobiles and reduces the weight of the clutch by a significant amount. With the drive keys and recesses or notches, there is no restriction to radial or axial deflection, but the drive keys and recesses limits the linear deflection of the springs so that they will not deflect beyond a predetermined point which would cause them to take a permanent set during initial clutch engagement when the clutch torque is extremely high. | ||||||
| 65 | Electromagnetic clutch | US93182 | 1979-11-13 | US4285421A | 1981-08-25 | Edwin H. Halsted |
| An electromagnetic clutch comprises a pair of cup-like sheet metal housing members facing each other and overlapping at their respective outer peripheries to form a radial air gap. The housings are spaced from each other to form a cavity for receiving an electromagnetic coil. One of the housing members is adapted for installation on a drive shaft while a bearing is affixed with respect to the other housing member such that the housing members may rotate relative to each other. First and second spacers are uniquely positioned in combination with the housing members together with the bearing and the shaft to provide an axial air gap and to control the flux transfer area of the radial air gap. | ||||||
| 66 | Electromagnetic rotating coil clutch | US66615 | 1979-08-15 | US4257508A | 1981-03-24 | George T. Bennett; Byron L. Brucken |
| A lightweight electromagnetic clutch adaptable for use with an air conditioning compressor including a rotatable electromagnetic coil and pulley assembly and an armature plate forming part of a magnetic flux circuit. An annular dish-shaped member is joined in back-to-back relation with a rotatable coil housing to provide a unitary flux carrying driven structure with the radially outer portion of each defining a driven pulley belt receiving groove. The radially inner portion of the dish-shaped member together with the coil housing inner wall and a support casing fixed tubular extension define a bearing cavity wherein the dish-shaped member and the bearing provide, with the housing, composite flux paths for the magnetic circuit. | ||||||
| 67 | Overload clutch for the feed roll of a carding machine | US30777 | 1979-04-17 | US4257147A | 1981-03-24 | Alfred W. Moss |
| An electromagnetically actuated jaw clutch for torsionally driving the feed roll of a carding machine includes a pair of annular, rack-toothed face gears spring biased away from each other in opposed relation to establish a nonengaged position when the clutch is de-energized. Energization of the jaw clutch magnetically forces the annular face gears against each other into an engaged interlocked position for effective driving of the feed roll. A torque overload condition established by jamming of the feed roll causes the rack-toothed face gears to ride out of engagement and separate from each other. Such torque overload separation of the face gears is sensed by a proximity switch which deactivates the clutch electromagnet and selected portions of the carding machine. | ||||||
| 68 | Lightweight electromagnetic clutch with shock absorber | US956134 | 1978-10-30 | US4241818A | 1980-12-30 | Donald L. Miller |
| An electromagnetic clutch is disclosed of the type having an armature member axially movable into frictional driving engagement with an inner body upon energization of an electromagnetic coil, and provided with a torque boosting arrangement consisting of a plurality of balls disposed in opposed corresponding conical pockets formed in ball seats mounted to the armature member and formed into an axially opposed ball plate element. This clutch design features a light weight construction in which most of the drive components are constructed of formed sheet metal, and in which a shock absorber is provided by a molded elastomeric ring located in the space between the ball plate element and a formed cup-shaped driven member enclosing the ball plate element. The shock absorbing material located between radial faces of the cup-shaped element and the ball plate acts to slow the development of the axial force generated by the torque boosting balls, while yielding to act as a torsional shock absorber. | ||||||
| 69 | Armature assembly for electromagnetic coupling | US860154 | 1977-12-14 | US4187939A | 1980-02-12 | Richard L. Silvestrini; Paul P. Newton |
| The armature of an electromagnetic clutch is connected to an axially fixed elastomeric ring by leaf springs which urge the armature away from the electromagnet. Rivets connect the springs to the armature and are formed with pin-like extensions which are telescoped snugly but slidably into holes in the ring. When the magnet is initially excited, the ring frictionally retards movement of the pin-like extensions to cause the armature to softly and quietly engage the magnet rather than slapping sharply against the magnet. | ||||||
| 70 | Magnetic torque producing device | US74084858 | 1958-06-09 | US2919777A | 1960-01-05 | WALTER ROBERT C |
| 71 | Magnetic clutch | US62097745 | 1945-10-08 | US2488552A | 1949-11-22 | GEORGE OETZEL JOHN |
| 72 | Magnetic clutch | US51342143 | 1943-12-08 | US2407757A | 1946-09-17 | MACCALLUM ALAN M |
| 73 | ELECTROMAGNETIC CLUTCH | EP12777143 | 2012-04-10 | EP2703677A4 | 2015-07-15 | IKEGAWA ATSUTOSHI |
| 74 | ELECTROMAGNETIC CLUTCH | EP12777143.4 | 2012-04-10 | EP2703677A1 | 2014-03-05 | IKEGAWA Atsutoshi |
Provided is a compact-size electromagnetic clutch that reaches a blocking state as an electromagnetic solenoid is switched from a non-driving state to a driving state and that can save wasteful consumption of energy under this blocking state. This electromagnetic clutch includes a wrap spring placed in pressure-contact with an outer face of a cylindrical portion of a drive pulley provided on the center side thereof. One end of the wrap spring is coupled to a drive arm of a drive member operably connected to a shaft. The other end of the wrap spring is coupled to an operational member rotatable relative to the shaft and movable along the rotational axis thereof. An electromagnetic solenoid is provided for attracting the operational member thereto. An operational mechanism is provided for realizing the blocking state by preventing rotation of the drive member after a twisting operation of the wrap spring subsequent to the attraction of the operational member by this electromagnetic solenoid. |
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| 75 | DISENGAGEABLE PULLEY ASSEMBLY FOR AN ACCESSORY OF AN INTERNAL COMBUSTION ENGINE | EP09785996.1 | 2009-07-08 | EP2271854B1 | 2012-10-24 | PASTA, Massimo |
| 76 | ROTATIONAL ELECTROMAGNETIC COUPLING DEVICE | EP06760061.9 | 2006-05-17 | EP1893883B1 | 2011-04-13 | PARDEE, James, A. |
| A rotational coupling device for use as a clutch and/or brake is provided having improved magnetic efficiency and structural integrity. A field shell (30) and a rotor (28) of the device each define radially spaced, axially extending inner and outer poles. The inner pole (54) of the rotor is disposed radially outwardly of the inner pole of the field shell (68) resulting in improved magnetic efficiency. | ||||||
| 77 | DECOUPLEABLE PULLEY FOR CONTROLLING A WATER PUMP | EP09742428.7 | 2009-05-06 | EP2286089A1 | 2011-02-23 | PASTA, Massimo; ROLANDO, Adriano |
| A pulley assembly (1) comprising a locking assembly (14, 15) adapted to be connected to an input shaft (2) of a water pump, a pulley (3) adapted to be mounted idle with respect to the shaft (2), an armature (13) which is axially mobile in order to selectively cooperate by friction with the pulley (3), an electromagnet (5) to displace the armature (13) arranged on the axially opposite side of the pulley (3) with respect to the armature (13), and an elastic means (16) preloaded to maintain the armature (13) in contact against the pulley (3) when the electromagnet (5) is not energised and having a substantially flat shape in its non-deformed configuration. | ||||||
| 78 | DISENGAGEABLE PULLEY ASSEMBLY FOR AN ACCESSORY OF AN INTERNAL COMBUSTION ENGINE | EP09785996.1 | 2009-07-08 | EP2271854A1 | 2011-01-12 | PASTA, Massimo |
| A pulley assembly defines an axis (A) and includes a support (17) resilient in an axial direction adapted to be connected to a control shaft of an accessory, an annular element (3) arranged between the resilient support (17) and a fixed element (4), preferably the accessory, and having connecting means (24) adapted to be connected to the fixed element (4), a pulley (5) rotatable about said axis (A) with respect to said annular element (3), a winding (16) carried by the annular element (3), an armature (18) supported by the resilient support (17) and operable by means of the winding (16), a friction element (19) fixed with respect to the armature (18) and indirectly cooperating also with the pulley (5), wherein the resilient support (17) is configured to press the friction element (19) against the ring (21); and is further configured so that said connecting means (24) may be accessed at least through the pulley (5) by a tightening tool which advances towards the annular element (3) through the pulley (5). | ||||||
| 79 | ELECTROMAGNETIC CLUTCH | EP08843500 | 2008-10-29 | EP2216561A4 | 2010-12-01 | SHIRAI ISAMU; ARASAWA TAKESHI; SHIMOYAMA TAKAO; FUJIU HIDEAKI |
| 80 | ELECTROMAGNETIC CLUTCH | EP04747877.1 | 2004-07-23 | EP1653107B1 | 2009-08-26 | ITO, Shigeru c/o SANDEN CORPORATION; ICHINOSE, Hirokazu c/o SANDEN CORPORATION; YOSHIDA, Motoaki c/o SANDEN CORPORATION; SHIRAI, Isamu c/o SANDEN CORPORATION |
| An electromagnetic clutch (20) for disconnectably connecting a drive source and a rotating shaft (22) has a rotor (25) rotated by the drive source and an armature (40) for producing a transmission power to be transmitted from the rotor (25) to the rotating shaft (22) when the armature is adhered to the rotor (25) by an electromagnetic force. Further, the electromagnetic clutch (20) includes a leaf spring (52) for urging the armature (40) in the direction to separate the armature (40) from the rotor (25). The leaf spring (52) is provided in a position that produces, based on a transmission force, a boost force working against an adhering force of the armature (40) when the armature (40) is adhered to the rotor (25). | ||||||
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