Patents Assigned to Kabushiki Kaisha Daikin Seisakusho
  • Patent number: 5743371
    Abstract: A clutch disc assembly interposed between an input side rotary member and an output side member has a hub, disc-like plates, a friction member, an elastic member and a viscous damper mechanism. The hub is connectable for co-rotation with the output side member. The hub has a flange on its outer circumference. The disc-like plates are rotatably mounted on the hub. The friction member is connected to said disc-like plates, for frictional engagement with the input side rotary member. The elastic member is for elastically connecting the flange and the disc-like plates whereby the flange and the disc-like plates are rotatable with respect to each other. The viscous damper mechanism includes a fluid medium, for displacing the fluid medium through restrictions in response to angular movements of the disc-like plates and the flange with respect to each other.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: April 28, 1998
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Yasushi Takehira, Shinichi Noda
  • Patent number: 5671834
    Abstract: The clutch cover assembly comprises a clutch cover, a pressure plate, a washer-type spring and a lever member. The clutch cover is fixed to a flywheel. The pressure plate is located within said clutch cover and is fashioned with a pressing surface for clamping facings against the flywheel. The washer-type spring engages the pressure plate to the flywheel. The lever member, supported by the clutch cover, is for engaging the pressure plate in combination with the washer-type spring to the flywheel and for releasing engaging loads of the washer-type spring from the pressure plate.
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: September 30, 1997
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Hiroshi Mizukami, Hiroshi Uehara, Shinichi Okada
  • Patent number: 5598912
    Abstract: The present invention is directed to enhancing workability in attachment and detachment of a clutch release bearing from a clutch release mechanism. A release coupling device is provided on an outer circumference of a transmission input shaft extending toward a clutch for coupling a clutch release bearing and a bearing drive mechanism. The device includes an inner cover 19 and an inner cylinder 30. The inner cover 19 is provided in the outer circumference of the shaft so as to be fixed thereto close to a diaphragm spring and has first convex portions 19b in its inner circumferential surface. The inner cylinder 30 is inserted in the inner cover 19 and has second convex portions 30c in its outer circumferential surface so that they come in contact with the first convex portion s 19b in close proximity to the clutch.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: February 4, 1997
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventor: Norihisa Uenohara
  • Patent number: 5590752
    Abstract: A clutch disc assembly interposed between an input side rotary member and an output side member has a hub, disc-like plates, a friction member, an elastic member and a viscous damper mechanism. The hub is connectable for co-rotation with the output side member. The hub has a flange on its outer circumference. The dlsc-like plates are rotatably mounted on the hub. The friction member is connected to said disc-like plates, for frictional engagement with the input side rotary member. The elastic member is for elastically connecting the flange and the dlsc-like plates whereby the flange and the disc-like plates are rotatable with respect to each other. The viscous damper mechanism includes a fluid medium, for displacing the fluid medium through restrictions in response to angular movements of the dlsc-like plates and the flange with respect to each other.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: January 7, 1997
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Yasushi Takehira, Shinichi Noda
  • Patent number: 5586633
    Abstract: A clutch cover assembly is used for urging a friction member connected to an output member against an input rotation member and for releasing urging on the input rotation member. The clutch cover assembly comprises a clutch cover, a pressure plate, an urging member, a support mechanism and a movement regulation mechanism. The clutch cover is fixed to the input rotation member. The pressure plate is located within the clutch cover and urges the friction member. The urging member urges the pressure plate toward the friction member. The support mechanism is movable toward the friction member and supports the urging member. The movement regulation mechanism moves the support member toward the friction member according to wear displacement of the friction member.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: December 24, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Hiroshi Mizukami, Norihisa Uenohara, Hiroshi Takeuchi
  • Patent number: 5582076
    Abstract: A flywheel assembly includes a first flywheel having an annular wall on its outer peripheral portion, a seal plate fixed to the outer peripheral portion to form an annular space between the first flywheel and the seal plate, a driven plate arranged to freely rotate relative to the first flywheel within the annular space, an elastic coupling mechanism arranged inside the annular space which elastically connects the first flywheel and the driven plate circumferentially, and a viscous dampening mechanism. The viscous dampening mechanism is formed adjacent to the outer peripheral portion inside the annular space and has a fluid filled chamber. The driven plate includes a plurality of protrusion, each one of the protrusions extending into one of the fluid filled chambers. The viscous portion has a choke formed inside the fluid filled chamber that passes fluid while the first flywheel and driven plate rotate relative to each other.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: December 10, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Toru Hamada, Kozo Yamamoto
  • Patent number: 5580312
    Abstract: A damper disc assembly comprises an input rotation member, a flanged hub connectable to an output member, an elastic member elastically connecting the input rotation member and the hub flange, a plurality of friction members and an regulator. The plurality of friction members are sandwiched between the input rotation member and the hub flange and develop hysteresis torque when the input rotation member rotates relative to the hub. The regulator enables a select number friction members to be functional depending on whether the damper assembly responds to phases of twisting of the input rotation member relative to the hub flange in either a direction positive or negative with respect to the rotation of the input rotation member.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: December 3, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Hiroshi Takeuchi, Masahiko Iwase
  • Patent number: 5579857
    Abstract: A vehicle which goes up and down stairs includes a vehicle body (101), front and rear wheels (102) and (103) provided at the front and rear of the vehicle body (101), respectively, front and rear auxiliary wheels (105) and (107) for lifting up or down the front and rear wheels (102) and (103) by one step of stairs, respectively, a driving unit for driving each wheel, a pivoting unit for pivoting the front and rear auxiliary wheels (105) and (107), sensors (121) to (124) for detecting a riser portion of stairs, and a control unit (120) for controlling the driving unit and the rotating unit in accordance with results of the sensors (121) to (124). Since the vehicle goes up and down stairs by rotation of the auxiliary wheels (105) and (107), a corner portion of the step of stairs is not damaged while the vehicle goes up and down stairs.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: December 3, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Minoru Abe, Heiji Fukutake, Yasuhiko Eguchi, Ryouji Wakizaka, Kyousuke Kitazawa, Akira Takeuchi
  • Patent number: 5573460
    Abstract: Viscous resistance generation mechanism (71) is a device that dampens torsional vibrations using the restricted flow of a viscous fluid. The mechanism is installed in a flywheel assembly having a first flywheel and a second flywheel coupled to allow for limited relative rotary displacement. The viscous resistance generation mechanism (71) is equipped with a first choke (S1) that generates a resistive force through the passage of a viscous fluid between small chambers formed on either side of the choke (S1) in response to rotary displacement between the flywheels in a first angular displacement range. A second choke (S2) produces a resistive force in a second displacement range greater than the first displacement range, the resistive force of the second choke (S2) being larger than the resistive force produced by the first choke (S1).
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: November 12, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventor: Mitsuo Toji
  • Patent number: 5569086
    Abstract: A flywheel assembly comprises a first flywheel, a second flywheel supported on the first flywheel so as to be rotatable, a drive member connected to said first flywheel to ensure a space in which viscous fluid can be contained therebetween, a driven member connected to the second flywheel to constitute, together with the first flywheel and the drive member, a fluid chamber with which viscous fluid is filled, a coil spiring for elastically connecting the members to each other, and a viscous damper part for moving viscous fluid in the fluid chamber in response to relative rotation between both the members to create viscous resistance. The driven member has a window hole containing the coil spring and a fluid supplying path connecting with the fluid chamber from the window hole. The viscous damper part has chokes for creating viscous resistance when the first flywheel and the driven member are relatively rotated.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: October 29, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventor: Masanobu Fukamachi
  • Patent number: 5569087
    Abstract: The device relates to a viscous torsional vibration dampening device for a flywheel mechanism and includes a flywheel (1), drive plates (14), driven plates (15), and a fluid filled chamber housing 18. The drive plates 14, the chamber housing and the flywheel are coupled to one another and rotate together. Within the chamber housing is a first slider cap (30) that forms a first choke between an inner surface of the chamber housing and is arranged to freely move circumferentially inside the liquid chamber. With the first slider cap (30) is a second slider cap (31). The second slider cap (31) is arranged to freely move circumferentially within the confines of the first slider cap (30). A second choke is defined between an inner surface of the first slider cap and an outer surface of the second slider cap that has a fluid path area smaller than that of the first choke.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: October 29, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventor: Kozo Yamamoto
  • Patent number: 5568852
    Abstract: A clutch cover assembly comprises a pressure plate, a base cover that is provided on the side that is opposite to the pressing face of the pressure plate, a diaphragm spring, urging mechanisms 25, and restraining mechanisms which restrict movement of the base cover towards the diaphragm spring but allow this movement of the base cover in correspondence to the amount of wear of a clutch disk. An urging mechanism 25 having a ring plate 27 which is disposed between the pressure plate and the base cover, a coil spring 33 which is supported by the ring plate 27 and is for the purpose of moving the base cover 20 towards the diaphragm spring, and a guide element 34 which is detachably mounted on the ring plate 27 and guides the coil spring 33.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: October 29, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventor: Naoki Tomiyama
  • Patent number: 5566801
    Abstract: A torque converter (1) including a front cover (2), a torque converter main body housing (3) and a retarder (5). The front cover (2) is coupleable to a crankshaft of an engine. The torque converter main body housing (3) is coupled to the front cover (2) forming a hydraulic fluid chamber (A). The torque converter (1) outputs torque transmitted from the front cover (2) to the main drive shaft (34). The retarder (5) is arranged inside the hydraulic fluid chamber (A) and uses the fluid to dampen torque transmitted from the torque converter main body housing (3) to the main drive shaft (34).
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: October 22, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Takao Fukunaga, Shigeru Takeshita
  • Patent number: 5562541
    Abstract: A flywheel assembly having a clutch disk and at least one flywheel includes the use of at least one undulated ribbon spring formed of an elongated metallic strip, folded in accordion fashion, having an arcuate shape and having a plurality of flat-spring loop sections symmetrically staggered along the arcuate shape. The spring is disposed in a fluid filled chamber within the flywheel assembly. The spring is compressed and expands in response to relative rotary displacement between adjacent parts within the flywheel assembly. The spring absorbs vibration from the adjacent parts within the flywheel assembly. Further, the spring further inhibits the flow of fluid within the fluid filled chamber further absorbing vibrations in response to rotary displacement between adjacent parts within the flywheel assembly. The spring may be disposed in a fluid filled chamber formed within the clutch disk or in other portions of the flywheel assembly.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: October 8, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventor: Hirotaka Fukushima
  • Patent number: 5551547
    Abstract: The clutch cover assembly comprises a clutch cover, a pressure plate, a washer-type spring and a lever member. The clutch cover is fixed to a flywheel. The pressure plate is located within said clutch cover and is fashioned with a pressing surface for clamping facings against the flywheel. The washer-type spring engages the pressure plate to the flywheel. The lever member, supported by the clutch cover, is for engaging the pressure plate in combination with the washer-type spring to the flywheel and for releasing engaging loads of the washer-type spring from the pressure plate.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: September 3, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Hiroshi Mizukami, Hiroshi Uehara, Shinichi Okada
  • Patent number: 5551318
    Abstract: A vehicle power train flywheel assembly having an input-side flexible coupling and power transmission damping mechanism whereby power is transmitted from the crankshaft of an engine to a main body of the flywheel assembly via a combination viscous fluid and elastic damping device. The power trans-mission damping mechanism includes a flexible annular input plate formed from sheet metal, and a rimmed sub-plate that together with the input plate forms a viscous fluid chamber, in which an undulated ribbon spring, as the elastic damping device, is installed. During power transmission the ribbon spring is compressed between an input-side sub-plate and an output side stop plate of the flywheel assembly, and torsional fluctuations meanwhile expanding and contracting the ribbon spring are damped as the narrow duct surrounding the ribbon spring chokes the flow of viscous fluid, developing viscous damping resistance.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: September 3, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventor: Hirotaka Fukushima
  • Patent number: 5520232
    Abstract: A main tire body, mounted to the rim (3) of a wheel, includes in one embodiment, an annular tire material (6) and a fiat wound spring ring (8) disposed within the annular tire material (6). The annular tire material (6) is a material with a cross section that can form in a semi-circular annular space (7) between the rim (3). The flat wound spring ring (8) a is annularly arranged within the annular space (7). In another embodiment, the main tire body includes an annular first tire material (10), a second tire material (11), and a plurality of airtight chambers (15) which help to absorb impacts. The first tire material (10) is mounted to the rim (3). The second tire material (11) is an annular material with an elastic body attached to the outer peripheral side of the first tire material. The airtight chambers portion (15) are formed in the second tire material between the first tire material. In another embodiment, the main tire body includes an annular first tire material (20), and a second tire material (21).
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: May 28, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Heiji Fukutake, Minoru Abe, Toru Fujii
  • Patent number: 5515745
    Abstract: A flywheel assembly comprises a flywheel having a friction surface, a flexible plate, and a stopper plate serving as a stopper mechanism. The above-described flexible plate is flexible in the bending direction and rigid in the rotational direction, and has a radially outer portion fixed to the flywheel and a radially inner portion fixable to an end of a crankshaft of an engine. The stopper plate is for restraining bending deflection of the flexible plate when it exceeds a predetermined amount.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: May 14, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Hiroyoshi Tsuruta, Hirotaka Fukushima
  • Patent number: 5513735
    Abstract: A clutch cover assembly having a clutch cover 10, a pressure plate 11, a support mechanism 12, a diaphragm spring 13, a plurality of wear compensation mechanisms 14, and a ring plate 27 which operates as a coincidence control device. The support mechanism 12 is disposed on the opposite side of the pressing surface to move freely of the pressure plate 11. The diaphragm spring 13 pushes the pressure plate 11 toward the flywheel 2 via the support mechanism .12. The plurality of wear compensation mechanisms 14 are disposed at several places around the pressure plate 11, each being a mechanism for moving the support member 12 a distance toward the diaphragm spring 13 compensating for the amount of wear on friction facings 6. The ring plate 27 is a mechanism for simultaneously moving the various wear compensation 14 mechanisms.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: May 7, 1996
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventor: Norihisa Uenohara
  • Patent number: RE38691
    Abstract: A flywheel assembly comprises a flywheel having a friction surface, a flexible plate, and a stopper plate serving as a stopper mechanism. The above-described flexible plate is flexible in the bending direction and rigid in the rotational direction, and has a radially outer portion fixed to the flywheel and a radially inner portion fixable to an end of a crankshaft of an engine. The stopper plate is for restraining bending deflection of the flexible plate when it exceeds a predetermined amount.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: February 1, 2005
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Hiroyoshi Tsuruta, Hirotaka Fukushima