Coupling Device Has Aperture Or Groove For Receiving Complemenatry Driving Projection On Torque Transmitting Members Patents (Class 464/104)
  • Patent number: 10165930
    Abstract: The endoscope includes: a rotating shaft in a distal end portion body of an insertion portion; an elevator which is coupled with one end of the rotating shaft; an elevator erecting lever which is coupled with the other end; an operating wire which rotates the rotating shaft through the elevator erecting lever to erect the elevator; a partition wall including a holding hole to support the rotating shaft; and a seal member disposed between the holding hole and the rotating shaft. The configuration of the rotating shaft and a positional relation between the rotating shaft and the seal member are improved so as to reduce time and labor taken for cleaning processing of the endoscope.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: January 1, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Toshizumi Tanaka, Tomohiro Ohki, Teruyuki Emura, Sunao Hachisuka
  • Patent number: 9086087
    Abstract: A mechanical joint that resists any direction of imposed force and can be connected in set rotational increments is comprised of three elements: a plug attached to the male-side of the joint, and a receptacle and a tabbed ring attached to the female-side side of the joint. The male-side and female-side are connected by sliding the plug into the receptacle and rotating the tabbed ring a partial turn. Reversing the connecting steps separates the joint.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: July 21, 2015
    Inventor: Charles Scott Sharman
  • Patent number: 9011120
    Abstract: In a scroll compressor of the present invention, a fixed scroll 11 and an orbiting scroll 12 are meshed with each other such that spiral laps of the fixed scroll 11 and the orbiting scroll 12 inwardly face each other, an Oldham ring 26 is provided between the main bearing member 19 and the orbiting scroll 12, and a key portion of the Oldham ring 26 is inserted into a key groove 19a of the main bearing member 19. Grooves 19b are formed in Oldham ring 26 sliding surfaces on both sides of the key groove 19a. According to this configuration, the Oldham ring 26 and the main bearing member 19 can be restrained from coming into contact with each other in the vicinity of the bearing key groove 19a, and restrained from vibrating, and it is possible to provide an inexpensive scroll compressor of low noise.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: April 21, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tooru Adachi, Nobuaki Ogawa, Minoru Fukumoto, Kiyozumi Kusano
  • Patent number: 8736120
    Abstract: An Oldham coupling includes a first coupling part, a second coupling part and an intermediate part. The first coupling part and the second coupling part are coupled to each other with the intermediate part provided therebetween. The first coupling part and the second coupling part are fitted on fitting portions of the intermediate part extending perpendicular to each other. The first coupling part, the second coupling part and the intermediate part have fitting indication portions. The fitting indication portions allow a positional relationship between the first coupling part and the second coupling part about a rotational axis to be determined.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: May 27, 2014
    Assignee: Fanuc Corporation
    Inventors: Takuya Maeda, Isao Kariya
  • Patent number: 8616985
    Abstract: A coupling that requires misalignment measures comprises a first hub and second hub, and a connection member that connects the first hub 10 and second hub 20 with each other, wherein the connection member has a plurality of columns, and beams that connect the respective columns with each other, wherein the beams that are next to each other among the respective beams are connected with the respective columns at the end of the first hub side on one side, and are connected with the respective columns at the end on the second hub side.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: December 31, 2013
    Assignee: Asa Electronics Industry Co., Ltd.
    Inventor: Yukihiro Asa
  • Patent number: 8562448
    Abstract: A joint structure includes a sleeve, a connecting shaft, a plurality of elastic pieces and a cross-limiting stopper. The sleeve defines a receiving shaft hole and a first cross slot communicating with the receiving shaft hole. The connecting shaft is partially assembled and received within the receiving shaft hole of the sleeve, the connecting shaft defines a second cross slot corresponding to the first cross slot. The plurality of elastic pieces is elastically received within a space formed between the sleeve and connecting shaft. The cross-limiting stopper is mounted to and partially received within the second cross slot, and partially received in the first cross slot, to enable the connecting shaft to be radially and adjustably installed within the sleeve and prevent the connecting shaft from rotating relative to the sleeve.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: October 22, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventor: Shang-Xuan Song
  • Patent number: 8246331
    Abstract: A fixed scroll is provided with a pin shaft portion which is formed in a cylindrical shape. Formed in a movable scroll is a slide groove which extends in the radial direction of the movable scroll. The pin shaft portion of the fixed scroll is engaged into the slide groove of the movable scroll. During orbital movement of the movable scroll, the pin shaft portion slidingly contacts a side surface of the slide groove, whereby rotation of the movable scroll is restricted.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: August 21, 2012
    Assignee: Daikin Industries, Ltd.
    Inventor: Takashi Uekawa
  • Patent number: 8007260
    Abstract: A scroll fluid machine has a stationary scroll having a stationary scroll lap fixed to a scroll casing and an orbiting scroll having an orbiting scroll lap that orbits relative to the stationary scroll lap. The stationary and orbiting scrolls are connected via a coupling mechanism other than an Oldham coupling or pin crank type mechanism having sliding parts. The coupling mechanism includes plate springs that connect the stationary scroll to the orbiting scroll. The orbiting scroll lap engages with the stationary scroll lap to form a closed compression chamber.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: August 30, 2011
    Assignee: Anest Iwata Corporation
    Inventor: Ken Yanagisawa
  • Patent number: 7976294
    Abstract: A scroll fluid machine has a stationary scroll having a stationary scroll lap and an orbiting scroll having an orbiting scroll lap that orbits relative to the stationary scroll lap. The orbiting scroll lap engages with the stationary scroll lap to form a closed compression chamber. An intermediate ring is positioned to surround the orbiting scroll lap. A plurality of first plate springs connect the intermediate ring and the orbiting scroll, while supporting the intermediate ring to enable the intermediate ring to move in a first direction orthogonal to a rotation axis of the machine. A plurality of second plate springs connect the intermediate ring and the stationary scroll, while supporting the intermediate ring to enable the intermediate ring to move in a second direction orthogonal to the rotation axis of the machine as well as orthogonal to the first direction.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: July 12, 2011
    Assignee: Anest Iwata Corporation
    Inventor: Ken Yanagisawa
  • Publication number: 20100292014
    Abstract: An Oldham coupler assembly capable of transferring rotary power between two shafts in a developer unit of an image forming apparatus that includes an input plate and an output plate made of metal and a star plate made in plastic mechanically coupled and positioned in between the input plate and the output plate. A spline component made of metal is rigidly and integrally attached to the input plate, the spline component including a tubular spline portion that includes a plurality of wear strips made of plastic, the output plate having a plastic material coated along a portion of an outside diameter of the output plate. The input and output plates further includes a plurality of openings to receive a plurality of wheels and pins. This structure allows a sufficiently stiff drive system to substantially eliminate fine line jitter by raising the natural frequency of the drive system.
    Type: Application
    Filed: December 31, 2009
    Publication date: November 18, 2010
    Inventors: Daniel Lee Carter, Larry Steven Foster, Robert Michael Meadows, Harald Portig, David Erwin Rennick, Brian Reed Spencer
  • Publication number: 20100285889
    Abstract: A steering apparatus includes an input shaft that transmits a steering force input from a steering wheel and an output shaft that transmits a steered force by which wheels are steered. The output shaft is arranged at a position that is radially offset from the input shaft. One of an eccentric cam and an adapting plate that form an eccentric pin mechanism is connected to the input shaft. The output shaft is connected to the other one of the eccentric cam and the adapting plate. A first connecting portion of the input shaft, which is connected to the eccentric pin mechanism, is connectable to a second connecting portion of the output shaft, which is connected to the eccentric pin mechanism.
    Type: Application
    Filed: December 12, 2008
    Publication date: November 11, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hajime Tanaka, Tomonari Yamakawa
  • Patent number: 7801657
    Abstract: A control system for a vehicle having first and second wheels is provided that includes a differential apparatus adapted to distribute torque between the first and second wheels and a traction controller for controlling operation of the differential apparatus from vehicle launch up to a predetermined vehicle speed. The traction controller is configured to engage the differential apparatus in a first operating state according to at least one vehicle operating parameter indicative of a low traction operating condition and to further control engagement of the differential apparatus in a second vehicle operating state during the low traction operating condition according to a difference between an actual vehicle yaw rate and a predetermined target vehicle yaw rate. The control system also includes a stability controller for controlling engagement of the differential apparatus at or above the predetermined vehicle speed.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: September 21, 2010
    Assignee: Eaton Corporation
    Inventors: Damrongrit Piyabongkarn, Jae Y. Lew, John A. Grogg, Robert J. Kyle
  • Patent number: 7789640
    Abstract: A fixed scroll (60) is provided with a pin shaft portion (70) which is formed in a cylindrical shape. Formed in a movable scroll (50) is a slide groove (80) which extends in the radial direction of the movable scroll (50). The pin shaft portion (70) of the fixed scroll (60) is engaged into the slide groove (80) of the movable scroll (50). During orbital movement of the movable scroll (50), the pin shaft portion (70) slidingly contacts a side surface of the slide groove (80), whereby rotation of the movable scroll (50) is restricted.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: September 7, 2010
    Assignee: Daikin Industries, Ltd.
    Inventor: Takashi Uekawa
  • Patent number: 7763336
    Abstract: A flexible shaft coupling sleeve comprising a sleeve shaped body having a central annular portion and a coupling receiving portion at each of two opposing sleeve ends, and a coupling device incorporating such sleeve. The sleeve's coupling receiving portions include axially extending teeth on their inner surfaces. The flexible shaft coupling sleeve is formed of a polyurethane elastomer composition.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: July 27, 2010
    Assignee: The Gates Corporation
    Inventors: Arthur Jack Clarke, Richard Bell, Joseph R. Duke, Jr., William W. L. Wu
  • Publication number: 20100151985
    Abstract: A coupling assembly for transmitting torque between a first body and a second body is disclosed herein. The coupling assembly includes a diaphragm plate extending radially between a radially inner periphery fixed for rotation with the first body. The diaphragm plate extends to a radially outer periphery and is operable to elastically deform in response to changes in the axial positions of the first and second bodies relative to one another. The coupling assembly also includes a socket assembly engaged with the radially outer periphery of the first diaphragm plate for concurrent axial movement in response to changes in the axial positions of the first and second bodies relative to one another. The socket assembly is also operable to transmit torque between the second body and the diaphragm plate. The socket assembly includes a radially-accommodating structure operable to at least partially move in response to changes in an outer profile of the second body.
    Type: Application
    Filed: December 11, 2008
    Publication date: June 17, 2010
    Inventors: DANIEL K. VETTERS, Robert W. Cedoz
  • Publication number: 20090230825
    Abstract: The invention relates to a shaft coupling for connecting a transmitter (15) to an electrical machine, in particular to an electric motor (16), wherein an end section (5) of a transmitter shaft (6) and an end section (2) of a motor shaft (1) are arranged facing each other, and at least one torque transmission element (9) is arranged between the end sections (5) of the transmitted shaft (6) and the motor shaft (1). The torque transmission element (9) has on each of the front faces thereof a transverse groove (10,11) passing through the center thereof, wherein claw-like elements (3, 4, 7, 8) of the end sections (2, 5) of the motor shaft (1) and the transmitter shaft (6) correspond in the assembled state with the transverse grooves (10,11) of the torque transmission element (9) in such a way that a torque transmission takes place from the motor shaft (1) to the transmitter (15), which compensates both radial and axial offsets as well as angular offsets of the motor and the transmitter shaft.
    Type: Application
    Filed: September 14, 2007
    Publication date: September 17, 2009
    Applicant: Siemens Aktiengesellschaft
    Inventors: Matthias Braun, Winfried Kessler, Michael Zisler
  • Publication number: 20080119294
    Abstract: An improved Oldham coupling that is a unitary object and in an embodiment comprises a first hub having a first projection and a second hub having a second projection. The two hubs are connected to each other by way of an intermediate disk having a first slot and a second slot, the slots being on opposite sides and perpendicular to each other. The first projection is received into the first slot and the second projection is received into the second slot. Elastomeric material is formed around the circumference of the disk to retain the assembly together as a unitary object.
    Type: Application
    Filed: November 16, 2006
    Publication date: May 22, 2008
    Inventors: Kenneth W. Erikson, Keith W. Erikson
  • Publication number: 20070293325
    Abstract: A coupling apparatus is provided with a first coupling member, a second coupling member and a damper member. The damper member is arranged between the first coupling member and the second coupling member. At least one of the first coupling member and the second coupling member has a tubular circumferential wall surrounding the outer circumference of the damper member. Accordingly, it is easy to control the diameter of an accommodating hole accommodating the coupling apparatus.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 20, 2007
    Inventors: Nobuyuki Matsumoto, Hideyuki Yagi, Kazunobu Kanno, Nobuyuki Imai
  • Publication number: 20040157666
    Abstract: A coupling for a motor including a first coupling member, a second coupling member and an intermediate member disposed between the first and second coupling members and slidably engaged with the first and second coupling members. The intermediate member includes a slider main body and an embedded member embedded in the slider main body, whereby the overall rigidity of the intermediate member is increased.
    Type: Application
    Filed: February 9, 2004
    Publication date: August 12, 2004
    Applicant: FANUC LTD
    Inventors: Mitsuyuki Taniguchi, Keisuke Imai, Hiroya Terashima
  • Patent number: 6527642
    Abstract: A power transmission coupling comprises a power transmission member having first and second ends. The first and second ends are respectively connected to ends of corresponding shafts through corresponding first and second sliding pairs. The first and second sliding pairs are different in sliding direction from each other. The power transmission member is made of a fiber-reinforced synthetic resin of a polymer alloy comprising polyamide MXD6 and polyphenylene ether, to which glass fibers are being blended.
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: March 4, 2003
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Hirokazu Arai, Takeshi Tsuda, Junya Ooitsu
  • Patent number: 6517439
    Abstract: A U-joint construction includes a drive coupling member connected to a drive shaft, and intermediate coupling member, and a driven coupling member connected to a driven shaft. The drive coupling member and the driven coupling member include bearings which protrude within channels of the intermediate coupling member. The drive bearing and the driven bearing are each pivotal about two axes, one of which coincides with the longitudinal axes of the channel and the other which is transverse with respect thereto. According to one embodiment of the invention the first and second bearings are also longitudinally slidable within the channels.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: February 11, 2003
    Assignee: Maytag Corporation
    Inventor: Jeffrey L. Sears
  • Patent number: 6106252
    Abstract: A scroll compressor has an Oldhams ring made of sintered metal operating as a rotation-prevention mechanism for holding the rotation scroll. The Oldhams ring is formed to a size to accommodate the cutting work or the grinding work of the surface processing during the forming of the sintered metal, and, as a result, the productivity of the Oldhams ring can be improved and the wear resistance becomes excellent. A scroll compressor that is inexpensive and has a high reliability may be made of a hard sintered metal which has an excellent wear resistance. A first groove 3a and the second groove 3b are formed in the end face 3 of the ring 2 of the Oldhams ring into the sintered metal. And, after the processing, the first groove 3a is deepest, and the depth is progressively reduced in order of the second groove 3b and the end face 3 in the Oldhams ring. The wear on the corner part of the tool, which is easiest to wear being used to process the side face of the keys is reduced due to the presence of these grooves.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: August 22, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Toshio Yamanaka, Yukio Maeda, Kazuya Kato, Nobuo Abe, Minoru Tateno, Tatsuo Horie
  • Patent number: 5927682
    Abstract: A rotary-driven valve is coupled to a rotary actuator. The coupling includes a shaft having longitudinally extending drive pins offset from the shaft axis. The drive pins contact drive surfaces of drive plates which have a valve stem opening which mates with the valve stem. The drive plates can slide relative to the valve stem with one degree of freedom, and the drive pins can slide relative to the drive plates with a second degree of freedom. Sliding movement of the first drive plate and/or the second drive plate allow the shaft axis to be angled and/or laterally displaced relative to the valve stem axis. The drive plates provide a dynamic adjustment freedom so bending moments and radial forces are not imposed on the valve stem. The drive plates may also provide thermal insulation between the valve stem and the actuator.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: July 27, 1999
    Assignee: Mamac Systems, Inc.
    Inventors: Asim Gul, Doug Jacob Kluge, Glenn Martin Campbell
  • Patent number: 5921762
    Abstract: An Oldham ring system for a rotary fluid compressor, comprising: a motor shaft; an eccentric shaft; a revolving part with two first gliding elements on its lower side; a stator; an Oldham ring, its upper side being provided with two second gliding elements fitting the two first gliding elements, and its lower side being provided with two third gliding elements for a perpendicular gliding movement; and a frame, on its perimeter being provided with two holders and with two fourth gliding elements in between that glide against said third gliding elements; wherein the characteristic is that the Oldham ring is, on the two opposite sides located next to the holders of the frame, provided with two straight shortcuts to reduce the width of the Oldham ring next to the holders; and wherein the first and second gliding elements as well as the third and fourth gliding elements each are provided with a groove in the gliding direction to provide for a flow path for lubricating oil.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: July 13, 1999
    Assignee: Industrial Technology Research Institute
    Inventors: Yu-Choung Chang, Chih-Cheng Yang, Tse-Liang Hsiao, Ching-Feng Lai, Kun-I Liang, Su Tao
  • Patent number: 5857553
    Abstract: Reducer comprising at least one stage and associated with a nonreturn device and with an Oldham coupling. The nonreturn device consists of two tubular seats fitted one into the other and of a helical spring braking by expansion against the casing of the reducer. The Oldham cross is seated within the nonreturn device. The reducer, the nonreturn device and the Oldham coupling are seated within the casing and are retained axially in the latter by a ring capable of receiving an adapter piece for mounting the assembly in a frame. The assembly forms a compact unit which can be handled easily.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: January 12, 1999
    Assignee: Somfy
    Inventors: Eric Paul Lagarde, Philippe-Marc Lemarchand
  • Patent number: 5588339
    Abstract: A stroke drive, particularly for displacement piston pumps, has a first eccentric (8) on which a second eccentric (9) is mounted. A push rod bearing (10) is connected to the second eccentric (9). The eccentrics (8, 9) are connected to each other by way of an intermediate drive (17) which conveys a synchronous rotation to the eccentrics. An adjusting device (16) serves to change the relative position of the eccentricities (e1, e2) of the eccentrics (8,9) relative to each other. In this manner the length of the stroke is steplessly adjustable from a maximal value to a minimal value.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: December 31, 1996
    Assignee: ProMinent Dosiertechnik GmbH
    Inventor: Viktor Dulger
  • Patent number: 5583630
    Abstract: A joint having an OLDHAM state coupling at a leading edge thereof is held movably in a direction which is parallel to a joint axis at a full-color printer body. A coupling gear is substantially connected to a developing roller disposed in each mono-color developing unit, which makes up a revolving type developing device. At the time of developing by one of the mono-color developing units, the joint is capable of moving in parallel to the axis of the joint in the state of being rotated toward the coupling. A projection is further provided at the leading edge of the coupling, and a claw is further provided at the end of the coupling gear. Thereby, smooth engagement between the coupling gear and the coupling is made by the help of the OLDHAM state coupling, the projection and the claw. As a result, the driving force is transmitted from the joint to the developing roller disposed in the developing unit, so that the developing roller can rotate at a predetermined speed and direction.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: December 10, 1996
    Assignee: Ricoh Company, Ltd.
    Inventors: Noriyuki Kimura, Minoru Suzuki, Takatsugu Fuzishiro
  • Patent number: 5569028
    Abstract: A scroll compressor includes a compressor housing made up of a cup-like first casing having a suction port defined therein and a cap-like second casing having a discharge port defined therein. The compressor housing accommodates a stationary scroll member having a stationary end plate and a stationary scroll wrap protruding axially from the stationary end plate, and an orbiting scroll member having an orbiting end plate and an orbiting scroll wrap protruding axially from the orbiting end plate, with the orbiting scroll wrap being in engagement with the stationary scroll wrap to define a plurality of working pockets therebetween. At least one shim is interposed between mating surfaces of the first and second casings to regulate axial gaps between axial end surfaces of the stationary and orbiting scroll wraps and the orbiting and stationary end plates opposed thereto.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: October 29, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Michio Yamamura, Kunio Iwanami, Tatsuhisa Taguchi, Masafumi Fukushima
  • Patent number: 5542832
    Abstract: A fluid compressor having a rotational force transmitting mechanism. The mechanism comprises an Oldam portion, an Oldam ring and a second cylinder gearing. The Oldam portion is integral with a piston. The Oldam ring has a first pair of key grooves and a second pair of key grooves. The key grooves of the first pair extend at right angles to those of the second pair. The second cylinder bearing is fitted in the cylinder and has two projections fitted in the key grooves of the second pair. The Oldam ring is made of silicon nitride ceramic.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: August 6, 1996
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshinori Sone, Takayoshi Fujiwara, Takashi Honjo, Takuya Hirayama, Hiroyasu Yoshizawa
  • Patent number: 5432590
    Abstract: An image forming apparatus includes an image bearing member movable along an endless path; a helical gear, adjacent an end of the image bearing member, for transmitting a driving force to the image bearing member; a rotatable member contributable to image formation on the image bearing member and having a shaft urged toward the image bearing member; driving means for driving the shaft; and a coupler disposed between the driving means and the shaft of the rotatable member, and effective to transmit rotational force in a direction of the shaft substantially without transmitting force in a radial direction of the rotatable member.
    Type: Grant
    Filed: August 9, 1994
    Date of Patent: July 11, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiya Nomura, Hiroaki Miyake, Yoshiro Tsuchiya
  • Patent number: 5324234
    Abstract: An inner slide surface 11 at the side of the driving shaft is formed on a plastic guide member 10 at the side of the driving shaft, which is removably mounted to a thorough hole 7 of a flange 6 at the end portion 2 of the driving shaft, and an inner slide surface 13 at the side of the driven shaft is formed on a plastic guide member 12 at the side of the driven shaft, which is removably mounted to a through hole 9 of a flange 8 at the end portion 4 of the driven shaft. A metallic rod member 14 for transmitting the torque, which removably penetrates a corresponding one of the guide member at the side of the driving shaft and a corresponding one of the guide member at the side of the driven shaft, has a first outer slide surface 16 and a second outer slide 18 surface which may each slide relative to the foregoing inner slide surfaces at the side of the driving shaft and the driven shaft respectively.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: June 28, 1994
    Assignee: Kay Seven Co., Ltd.
    Inventor: Sadatomo Kuribayashi
  • Patent number: 5275543
    Abstract: An Oldham ring of a scroll type compressor having a swivel scroll of aluminum alloy. The Oldham ring is of cast aluminum alloy and has a pair of projections (a) serving to engage with a pair of guide grooves formed in a surface of the swivel scroll adjacent to a crankshaft. Sliding surfaces of the projections which are to be brought into contact with inner surfaces of the guide grooves are each covered with a metal sheet made of a metal which is different from aluminum and aluminum alloys. It is recommended that the metal sheet has the following thickness (t): t=0.5-2.5 mm, T/20.ltoreq.t.ltoreq.T/4 (where, T represents the widthwise dimension of the projection in the circumferential direction of the Oldham ring). The metal sheet is united with the Oldham ring by insert casting.
    Type: Grant
    Filed: September 16, 1992
    Date of Patent: January 4, 1994
    Assignee: Daido Metal Company, Ltd.
    Inventors: Tadashi Tanaka, Masaaki Sakamoto, Toshio Egami, Izumi Maruyama, Yoshiaki Sato
  • Patent number: 5267903
    Abstract: A shaft coupling includes a plurality of first channels (10) which runs in a first direction formed at a flange portion (3) at the end portion of a driving shaft and a plurality of second channels (12) which run in a second direction perpendicular to the first direction formed at a flange portion (5) at the end portion of a driven shaft. A torque transmitting member (14) is interposed between the flange portion (3) and the flange portion (5). A plurality of first slide members (16) which each slidably fit with the first channels are formed on the transmitting member (14), and a plurality of second slide members (18) which each slidably fit with the second channels are formed thereon. The transmitting member (14) is made of plastic material, and the flange portions (3) and (5) are made of metal.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: December 7, 1993
    Assignee: Kay Seven Co., Ltd.
    Inventor: Sadatomo Kuribayashi
  • Patent number: 5226852
    Abstract: Projections (16, 18) formed on shafts (10, 12) and received in grooves (20a, 20b) of an intermediate disk (14) to form an Oldham coupling, in general, perform a small sliding movement relative to the intermediate disk (14), and thus the projections (16, 18) and the side surfaces of the grooves (20a, 20b) are abraded to cause backlash to appear between the corresponding surfaces. This backlash makes an accurate transmission of the rotation of one shaft to the other impossible.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: July 13, 1993
    Assignee: Fanuc Ltd.
    Inventors: Eiki Asaba, Isao Kariya
  • Patent number: 5125805
    Abstract: The Oldam-ring of the rotational force transmitting mechanism of a fluid compressor is engaged with the rectangular section formed on the base portion of the main shaft of the rotary rod in the direction perpendicular to the axial direction of the main shaft to achieve an easy assembling of the Oldam-ring to the rectangular section. If the fluid compressor employs a thrust force canceling system wherein the thrust force acting on the rotary rod from the discharge side toward the suction side of a cylinder is canceled by a counter thrust force, the diameter of the main shaft located at the suction side is increased compared with that of the conventional fluid compressor to increase the counter thrust force acting on the edge surface of the main shaft whereby the thrust force can be effectively canceled.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: June 30, 1992
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takayoshi Fujiwara, Hisanori Honma, Yoshinori Sone, Takuya Hirayama
  • Patent number: 5078650
    Abstract: The universal joint arrangement includes a first adapter having two projecting support formations; a drive plate having a first pair of matching depressions or pockets is seated with these depressions on the projecting support formations of the first adapter and the drive plate has a second pair of pockets for the projecting support formations of a respective second adapter.
    Type: Grant
    Filed: April 13, 1990
    Date of Patent: January 7, 1992
    Assignee: Computalog Ltd.
    Inventor: Dean Foote
  • Patent number: 5037280
    Abstract: A scroll fluid machine comprising a first scroll rotated by a drive source, a second scroll eccentric from the central axis of the first scroll, the second scroll cooperating with the first scroll to compress fluid, a coupling which is provided on the outer end surface of one of said first and second scrolls and engaged with the one scroll at two positions in the periphery thereof so that the scrolls are movable in diametrical directions which are perpendicular to each other, respectively, and a pair of coupling arms which are provided on the other of the first and second scrolls and engaged with the coupling at two positions in the periphery thereof, in such a manner that the phantom line connecting the positions of engagement of said coupling arms is perpendicular to the phantom line connecting the positions of engagement of said coupling.
    Type: Grant
    Filed: September 6, 1990
    Date of Patent: August 6, 1991
    Assignee: Mitsubishi Denki K.K.
    Inventors: Mitsuhiro Nishida, Kozaburo Fujii, Etsuo Morishita, Sakuei Yamamoto
  • Patent number: 5022645
    Abstract: A disengageable coupling generally of the double slider type includes first and third components fixed to the end of shafts to be coupled. A second spider component is slidingly coupled to the first component by interlocking mating surfaces that permit limited radial sliding but prevent axial movement of the spider component. The spider component and third component have disengageable clutch surfaces which also permit radial movement of the spider component with respect to the third component.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: June 11, 1991
    Assignee: Eastman Kodak Company
    Inventor: Michael H. Green
  • Patent number: 4723517
    Abstract: An engine driven camshaft cam is driven in a manner to superimpose a variable oscillation on the cam as it is rotatably driven in order to vary the period during which an associated valve is opened, the drive including an engine driven gear or sprocket journalled in a block whose axis is displaceable transversely to the axis of the cam, a slider member secured for rotation with the gear and guided for linear radial movement relative to the gear or sprocket, and a rack on the slider member engaged by a pinion coupled to the cam for oscillating the cam relative to the camshaft upon sliding movement of the slider in response to eccentrically displacing the axis of the gear.
    Type: Grant
    Filed: February 10, 1987
    Date of Patent: February 9, 1988
    Assignee: Ford Motor Company
    Inventor: Derek Frost
  • Patent number: 4683763
    Abstract: A feed-through apparatus for use in rotating a shaft which typically forms part of a system. The apparatus includes a feed-through shaft which is to be rotated and structure for rotatably mounting the shaft on a panel or wall. A cap rotatably coupled to the mount has a driver coupled with it, the driver including a stub shaft having bearings at one end thereof received within a groove of an end face of the driven shaft. The driver includes a cylindrical member mounted by a bearing in the inner periphery of the cap, such inner periphery being provided with a beveled surface so that the cylindrical member and the stub shaft wobble when the cap is rotated. When the bearings on the outer end of the stub wobble, they move along a circular path surrounding the central axis of the driven shaft, causing the driven shaft to rotate in the direction of movement of the bearings on the driver.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: August 4, 1987
    Assignee: Huntington Mechanical Laboratories, Inc.
    Inventor: Valentin Balter
  • Patent number: 4480607
    Abstract: An even firing 90.degree. V6 four stroke cycle engine is provided with a single line balancer having a combination of primary balance weights and secondary Oldham coupling balancers rotating opposite crankshaft rotation which, combined with crankshaft counterweights, provide complete offsetting of the engine primary rotating unbalance couple together with offsetting of a large portion of the engine secondary rotating unbalance couple and leaving a small residual secondary unbalance couple for absorption by the engine mounting system.
    Type: Grant
    Filed: August 1, 1983
    Date of Patent: November 6, 1984
    Assignee: General Motors Corporation
    Inventors: Lung-Wen Tsai, Robert L. Jacques
  • Patent number: 4472154
    Abstract: A drive arrangement is disclosed which provides for the transfer of torque between two non-aligned shafts. The drive arrangement includes an intermediate shaft having outwardly projecting claws secured to each end thereof which are engageable in a positive driving manner with corresponding claws formed on the first and second shafts, respectively. A pair of resilient members are interposed between the claws at each end of the intermediate shaft which provide flexible couplings for facilitating the transfer of torque therebetween. Such a drive arrangement corrects for pure eccentricity between the parallel axes of the first and second shafts as well as correcting for any lack of parallelism between these axes.
    Type: Grant
    Filed: January 14, 1983
    Date of Patent: September 18, 1984
    Assignee: Deere & Company
    Inventor: Robert Kryscyk
  • Patent number: 4464142
    Abstract: A shaft coupler for connecting a distributor shaft of an ignition distributor to the camshaft of an internal combustion engine. The coupler comprises a plastic member having a pair of drive lugs located in a groove formed in the end of the camshaft. The plastic member has another pair of lugs located in a groove formed in a driven metallic member that is connected to the distributor shaft. Rubber sleeves are disposed about these lugs and torque is transmitted from the plastic member to the metallic member through the sleeves. The two members are secured together by arms that extend from the plastic member through slots formed in the metallic member. The arms have teeth engaging a face of the metallic member.
    Type: Grant
    Filed: February 3, 1983
    Date of Patent: August 7, 1984
    Assignee: General Motors Corporation
    Inventors: David B. Bridges, John J. Schulte
  • Patent number: 4440123
    Abstract: A half speed balancer for unbalanced mechanisms such as internal combustion engines comprises an Oldham coupling device with a central coupler that orbits in a curved (usually circular) path at a frequency twice the speed of the coupling rotation. The balancer substitutes for an equivalent rotating eccentric weight when driven at only half the rotational speed thus causing reduced bearing friction and noise and may be used in multiples like eccentric weights to offset various unbalance conditions.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: April 3, 1984
    Assignee: General Motors Corporation
    Inventor: Lung-Wen Tsai
  • Patent number: 4435137
    Abstract: A scroll-type fluid compressor unit including a housing having a fluid inlet port and fluid outlet port and a fixed an an orbiting scroll member within the housing. Each scroll member has an end plate and a spiral element which are maintained angularly and radially offset so that both spiral elements interfit with line contacts between the spiral curved surfaces to define moving sealed off pockets. A thrust supporting means is engaged with a side surface of a portion of the orbiting scroll member for providing axial thrust support. An axial pushing means such as a spring-biased rod is engaged with the orbiting scroll member for pushing the orbiting scroll member against the thrust supporting means from the side of the orbiting scroll member which faces the fixed scroll member, so that axial slant of the orbiting scroll member is minimized.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: March 6, 1984
    Assignee: Sanden Corporation
    Inventor: Kiyoshi Terauchi