Using A Rotary-type Fluid Damper Patents (Class 188/290)
  • Patent number: 8745820
    Abstract: A rotary hinge assembly includes a hinge housing including at least one interior chamber. A spring disposed within the hinge housing provides a torque on an attached door while in an opened and closed position. A rotor rotatably disposed within the at least one interior chamber includes at least one rotor vane that moves in relation to a stationarily mounted stator having at least one stator vane. A fill plug includes a plurality of entrance and exit holes disposed in relation to the stator and rotor vanes to define a fluidic damper assembly. A valve disposed within the fill plug permits selective adjustment of the fluidic damper by restricting or opening the entrance and exit holes of the fill plug.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: June 10, 2014
    Assignee: ITT Manufacturing Enterprises LLC
    Inventor: John M. Janak
  • Patent number: 8727658
    Abstract: A pinless device for orienting a motorcycle stabilizer wiper, such device having a platform adapted for stable attachment to a motorcycle; projections extending, preferably upward, from the platform in order to create a channel; an arm having a first end adapted for attachment to a shaft from a wiper of a motorcycle stabilizer and also having a second end of such dimensions that the second end can fit in the channel between the projections; and a means, such as a set screw, for releasably and securely fastening the second end of the arm in the channel between the projections.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: May 20, 2014
    Inventor: Ralph S. Norman
  • Patent number: 8708370
    Abstract: A safety enhancement for a safety belt comprises an actuator housing mechanically coupled to a first end plate, a rotor blade, an orifice plate, a second end plate, a coil, and a spring cover by an actuator axel. The orifice plate comprises an orifice that allows hydraulic fluid to pass from a first side of the rotor blade to a second side of the rotor blade in order to increase or decrease tension on a safety belt to reduce user movement.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: April 29, 2014
    Inventor: John Barker
  • Patent number: 8701845
    Abstract: A suspension device (S) comprises: an actuator (A) including a motion conversion mechanism (T) for converting rotational motion of a screw nut (1) to linear motion of a threaded shaft (2), and a motor (M) connected to the screw nut (1); and a fluid pressure damper (D) connected to the threaded shaft (2), wherein the threaded shaft (2) is formed in a cylindrical shape, a connecting shaft (30) for connecting a rod (31) or a cylinder (32) of the fluid pressure damper (D) to the threaded shaft (2) is inserted into the threaded shaft (2), and the connecting shaft (30) is connected to an end, opposite to the fluid pressure damper, of the threaded shaft (2). Accordingly, the connection between the actuator and the hydraulic damper is facilitated.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: April 22, 2014
    Assignee: Kayaba Industry Co., Ltd.
    Inventor: Takuhiro Kondo
  • Publication number: 20140102840
    Abstract: A rotary-type damper includes a housing filled with a working fluid, a shaft penetrating inside the housing and placed in a rotatable manner, a housing pin provided on the inner circumference of the housing to reach the side of the shaft used for limiting the movement of the working fluid, and an axis pin for coupling with the shaft to rotate with the shaft, and closely contacting the side of the shaft and the inner circumference of the housing as the position thereof varies according to the rotating direction of the shaft. The present invention increases the durability and the period of use, easily enables an accurate control of the working fluid, thereby eliminating the requirement for high precision in processing the component members, and enables the control of a unidirectional damping and the rotational speed of a rotary body which is the target of damping.
    Type: Application
    Filed: May 7, 2012
    Publication date: April 17, 2014
    Applicant: EVERSYS CO., LTD.
    Inventor: Yongjun Cho
  • Patent number: 8695767
    Abstract: A device for braking the movement of a movable member with respect to a support structure includes a casing fixable to the movable member or to the structure and defining a chamber containing a viscous braking fluid, and a rotor, operationally associable with the movable member or with the structure, and which is rotatably connected to the casing and is mounted thereon so as to close the chamber. The rotor includes a piston-like member or portion, mounted so as to slide within the chamber in such a way as to separate the chamber into separate regions in mutual fluid communication. The piston-like member or portion is movable integrally with the rotor, such that rotation of the rotor brings about a rotatory displacement of the piston-lie member or portion, braked by the resistance to the passage of the fluid from one region to the other of the chamber caused by the displacement of the piston-like member or portion.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: April 15, 2014
    Inventor: Antonino Cultraro
  • Patent number: 8672111
    Abstract: A viscous coupling includes a case body for forming a working chamber which contains the viscous fluid, a shaft inserted into the case body in such a manner that the shaft is relatively rotatable with respect to the case body, a plurality of inner plates coupled to the shaft, and a plurality of outer plates, coupled to the case body, which are arranged in the working chamber in such a manner as to be spaced apart from the inner plates with a pitch in an axial direction of the shaft. The pitch between each of the inner plates and each of the outer plates is adjustable by deforming either of the inner plates and the outer plates in response to the rotation speed of the shaft or the case body.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: March 18, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yasuhiro Wada
  • Patent number: 8657086
    Abstract: An identical engagement hole 12b is formed in each of first and second brackets 1, 2. A first engagement portion 31c is formed in a damper body 31 of a rotary damper 3. A distal end portion of a rotor 32 of the rotary damper 3 is non-rotatably inserted in an adapter 4. A third engagement portion 46 is formed in an outer circumference of the adapter 4. The first engagement portion 31c is non-rotatably inserted in the engagement hole 12b of the first bracket 1. The third engagement portion 46 is non-rotatably inserted in the engagement hole 12b of the second bracket 2.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: February 25, 2014
    Assignee: Sugatsune Kogyo Co., Ltd.
    Inventor: Shinpei Iwata
  • Patent number: 8657084
    Abstract: The present invention provides a rotary damper in which both yields and braking characteristics can be enhanced. The rotary damper of the invention includes a valve mechanism which comprises an operating chamber 7 through which fluid can pass, a valve body 8 which forwardly moves from a natural state position when the valve body 8 receives fluid pressure and which can forwardly moves in the operating chamber 7, and a first spring 9 capable of giving a resistance to the forward movement of the valve body 8. The valve mechanism can reduce a flow rate of fluid which passes through the operating chamber 7 by a flow path 14 formed between the valve body 8 and a peripheral wall 7a of the operating chamber 7. A reducing amount of fluid can be increased as a moving distance of the valve body 8 which forwardly moves in the operating chamber 7 is increased.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: February 25, 2014
    Assignee: Kabushiki Kaisha Somic Ishikawa
    Inventors: Hidenori Kanno, Ryota Shimura, Masanori Itagaki
  • Publication number: 20140035310
    Abstract: A rotary damper has a cylindrical housing. A rotor is rotatably supported inside the housing for rotation with respect to the housing by a first bearing and a second bearing. The second bearing has a greater length in the axial direction of the rotor than the first bearing. The rotary damper can be employed in an opening and closing mechanism for a vehicle door.
    Type: Application
    Filed: October 11, 2013
    Publication date: February 6, 2014
    Applicant: KABUSHIKI KAISHA SOMIC ISHIKAWA
    Inventors: Keigo Ozaki, Tatsuya Kitada
  • Publication number: 20140028065
    Abstract: An adjustable vehicle seat includes a seat track, a seat base, a backrest, and a remote damping system. The remote damping system includes a housing and a damping element disposed within the housing. A traction cable has a sheath with a first end and a second end, and a wire with a first end and a second end. The first end of the sheath is fixed with respect to the housing and the first end of the cable is coupled to the damping element.
    Type: Application
    Filed: July 26, 2012
    Publication date: January 30, 2014
    Inventors: Eugene John Ficyk, Derek Scott Hrabovsky
  • Publication number: 20140020994
    Abstract: The rotary damper comprises: case having viscous fluid 13 filled cylindrical chamber; rotor housed in the chamber; check valve; and pressure-regulating valve. In the chamber, projecting bulkheads are formed. The rotor comprises: the rotor body and vanes. The check valve closes when the rotor rotates in the normal rotation direction, so as to restrict movement of the viscous fluid between areas 111a-111d partitioned by the bulkheads and the vanes. On the other hand, the check valve opens when the rotor rotates in the reverse rotation direction, so as to allow movement of the viscous fluid between the areas 111a-111d. The pressure-regulating valve opens when rotating force applied for rotating the rotor in the normal rotation direction is above a predetermined value, to cancel the restriction of movement of the viscous fluid between the areas 111a-111d.
    Type: Application
    Filed: November 17, 2011
    Publication date: January 23, 2014
    Applicant: OILES CORPORATION
    Inventors: Akihiko Okimura, Naohiro Horita
  • Patent number: 8631917
    Abstract: An elevator brake assembly includes a braking fluid for providing a braking force. A first magnet provides a first magnetic field that influences the braking fluid to provide the braking force. The second magnet selectively provides a second magnetic field that controls how the first magnetic field influences the braking fluid to control the braking force.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: January 21, 2014
    Assignee: Otis Elavator Company
    Inventors: Zbigniew Piech, Wojciech Szelag
  • Patent number: 8627931
    Abstract: A torsional vibration damper comprises a housing with a fluid-tight ring-shaped chamber and a vibration ring, which is rotatably supported in the ring-shaped chamber of the housing. Between the vibration ring and the housing, a gap-shaped oil receiving space is formed, which is filled with a viscous damping fluid The oil receiving space has an oil outflow and an oil inflow. The oil drain communicates with a section of the oil receiving space located radially further outside than the oil inflow. The replacement of the damping fluid present in the oil receiving space is thus controlled. This makes it possible to refresh the damping fluid over an operation interval, so that the defined damping properties are maintained during the entire operation period. This helps to increase the life of a torsional rotary damper that is autonomous with reference to the oil supply, or to lengthen maintenance intervals.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: January 14, 2014
    Assignee: Ellergon Antriebstechnik
    Inventors: Cornelius Geislinger, Matthias Geislinger, Stephan Lange
  • Publication number: 20140001007
    Abstract: A rotary damper device includes a damper housing enclosing a viscous fluid; a rotor having a rotor vane rotatably received inside the damper housing, and a rotor axis protruding to an outside of the damper housing; and a rotary member combined with a protruding end of the rotor axis. The rotary member includes an insertion hole through which the protruding end of the rotor axis passes, and a pair of control walls at a hole edge with the insertion hole interposed therebetween. A protruding end of the rotor axis protrudes in a radial direction of the rotor axis along a gap between the pair of control walls so as to be engaged with the hole edge of the insertion hole by being heated and deformed in a state wherein the protruding end of the rotor axis has passed through the insertion hole.
    Type: Application
    Filed: January 10, 2012
    Publication date: January 2, 2014
    Applicant: NIFCO INC.
    Inventor: Kei Shimozaki
  • Publication number: 20130306417
    Abstract: A damper device includes an inner part having a cylindrical shape; an outer part including an annular space with a bottom to rotatably or relatively rotatably house the inner part from one cylinder end side; and a viscous fluid filled in the annular space. An outer side of the inner part is formed with a circular groove to fit an outside seal ring. Also, an inner side of the inner part is formed with a circular step surface positioned closer to the one cylinder end side than the circular groove, and positioning an inside seal ring. A depth of the circular groove has a dimension approximately half a thickness of the inner part at a portion forming the circular groove.
    Type: Application
    Filed: January 6, 2012
    Publication date: November 21, 2013
    Applicant: NIFCO INC.
    Inventor: Takashi Ono
  • Patent number: 8540062
    Abstract: A dampening assembly for a portable electronic device includes a housing. The housing includes a top portion and a bottom portion. A pivot arm is pivotably coupled to the bottom portion of the housing. A reservoir is defined between the top portion and the bottom portion. The reservoir includes at least one of a fluid and a viscous material. A first portion of the pivot arm is disposed within the reservoir. A second portion of the pivot arm extends through and above the top portion of the housing.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: September 24, 2013
    Assignee: Research In Motion Limited
    Inventors: Martin Earl Holman, IV, Bruce Alan Ivanik, Douglas Wayne Moskowitz
  • Patent number: 8516657
    Abstract: A hinge device prevents breakage of a structuring part from an increase in an internal pressure during overload. In the hinge device, first and second members are rotatable relative to each other. A case is fixed to either the first or second member, and a shaft body capable of rotating relative to the case is fixed to the other. A first chamber and a second chamber formed between the case and the shaft body are filled with viscous fluid. An orifice between the first and second chambers narrows a flow path for the viscous fluid moving from the first to second chamber, resisting rotation of the shaft body. A space region is provided in the shaft body, with a valve body movably placed therein. When pressure of the first chamber reaches a predetermined level, the valve body moves in the space region to increase the volume of the first chamber.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: August 27, 2013
    Assignee: Sugatsune Kogyo Co., Ltd.
    Inventor: Masahiro Yoshida
  • Patent number: 8469163
    Abstract: The present invention provides a rotary damper in which both yields and braking characteristics can be enhanced. The rotary damper of the invention includes a valve mechanism which comprises an operating chamber 7 through which fluid can pass, a valve body 8 which forwardly moves from a natural state position when the valve body 8 receives fluid pressure and which can forwardly moves in the operating chamber 7, and a first spring 9 capable of giving a resistance to the forward movement of the valve body 8. The valve mechanism can reduce a flow rate of fluid which passes through the operating chamber 7 by a flow path 14 formed between the valve body 8 and a peripheral wall 7a of the operating chamber 7. A reducing amount of fluid can be increased as a moving distance of the valve body 8 which forwardly moves in the operating chamber 7 is increased.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: June 25, 2013
    Assignee: Kabushiki Kaisha Somic Ishikawa
    Inventors: Hidenori Kanno, Ryota Shimura, Masanori Itagaki
  • Publication number: 20130153347
    Abstract: A silicone oil (18) is filled inside a housing (12) of rotation damper (10), and a rotor brake plate (24) provided to be connected to a lower end portion of a rotating shaft (22) of a rotor (20) is rotatably housed inside the housing (12). Also, an O-ring (30) is disposed between the housing (12) and the rotating shaft (22) to prevent the silicone oil (18) from leaking outside of the housing (12). The O-ring (30) is formed by a silicone rubber having a hardness of 25 degrees or above and 45 degrees or less according to the Durometer Hardness Testing (type A) of JIS K 6253.
    Type: Application
    Filed: May 16, 2011
    Publication date: June 20, 2013
    Applicant: NIFCO INC.
    Inventors: Hayato Oda, Yoshihisa Takei
  • Patent number: 8453803
    Abstract: A brake actuating apparatus includes a caliper body with a cylinder. An electric motor is fixed to the caliper body. A pressing piston is installed in the cylinder. A rotational shaft is installed at the center of the housing to be rotated by the motor. A head is attached to the rotational shaft and defines a fluid-receiving space in cooperation with the housing. The rotation of head varies the volume of space, thereby moving the pressing piston.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: June 4, 2013
    Assignee: Wheel Corporation
    Inventor: Han-Yong Cho
  • Patent number: 8439172
    Abstract: The present invention relates to an oil damper for preventing a seat and a cover from rapidly rotating. The oil damper includes a shaft unit, a cam, a valve, an elastic member, a housing and a fastening member. The shaft unit has a coupling part which is coupled to the seat and the cover. The cam is rotatably coupled to a rotating shaft of the shaft unit. The valve opens or closes a coupling hole depending on movement of the cam to allow fluid to flow through the coupling hole or prevent the fluid from flowing. The elastic member is provided in the housing and is compressed by the cam. A flow rate control groove is formed in the housing and controls the flow rate of fluid in response to movement of the cam. The fastening member is fitted over the shaft unit and fastened to the housing.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: May 14, 2013
    Assignee: Samhong Tech Co., Ltd.
    Inventor: Byung Wook Lee
  • Patent number: 8418998
    Abstract: A damper includes a vessel; a partitioning member which partitions the interior of the vessel into two chambers for accommodating a viscous fluid, and which rotates together with the vessel in a direction and is movable in an axial direction; a moving force imparting structure for imparting to the partitioning member a moving force in a direction by the input of rotation in a direction; a resilient structure for resiliently urging the partitioning member in a direction; a through hole for allowing the chambers inside the vessel to communicate with each other; and an allowing/limiting member which allows the viscous fluid to flow reciprocally between the chambers through the through hole, and which limits the flow of the viscous fluid in one chamber into the other chamber in the direction through the through hole.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: April 16, 2013
    Assignee: Oiles Corporation
    Inventors: Akihiko Okimura, Naohiro Horita, Yoshiteru Igarashi
  • Patent number: 8408629
    Abstract: A variable torque rotary damper for a vehicle seat comprises a housing defining a non-uniform chamber for retaining therein a viscous fluid. A rotor has an axial portion extending at least partially into the chamber and a resistive portion extending radially from the axial portion for moving through the viscous fluid within the chamber. When torque is applied to the rotor resulting in rotation of the resistive portion through the viscous fluid, a resistant force being applied by the viscous fluid on the resistive portion increases or decreases proportionally relative to a position of the resistive portion within the non-uniform chamber.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: April 2, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventor: Jason Miles Baker
  • Patent number: 8366214
    Abstract: A damper has at least two damping components which are mounted such that they can move relative to each other during a damping stroke. A damping medium acts between the damping components, and at least one actuating element is operatively connected to the first damping component at least during the damping stroke of the damper. A locking device is arranged between the second damping component and a retaining part. The locking device couples the second damping component fixedly to the retaining part during the damping stroke of the damper. During the return stroke of the damper, the locking device decouples the second damping component from the retaining part so as to realize a freewheeling motion such that, during the return stroke of the damper, the second damping component moves together with the first damping component.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: February 5, 2013
    Assignee: Julius Blum GmbH
    Inventor: Bernhard Krammer
  • Patent number: 8366190
    Abstract: A damper includes a vessel; a partitioning member which partitions an internal space of the vessel into two accommodation chambers for accommodating a viscous fluid and which is movable with respect to the vessel; a moving force imparting device for imparting to the partitioning member a moving force in an A1 direction by the input of rotation in an R2 direction with respect to the vessel, so that the moving velocity is set to one corresponding to the rotating velocity of that input of rotation; a resilient device for resiliently urging the partitioning member in an A2 direction; a communicating hole formed in the partitioning member; and a flow limiting device for limiting the flow of the viscous fluid in the accommodating chamber into the accommodating chamber through the communicating hole when the internal pressure of the viscous fluid accommodated in the accommodating chamber has exceeded a fixed value.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: February 5, 2013
    Assignee: Oiles Corporation
    Inventors: Akihiko Okimura, Yoshiteru Igarashi, Naohiro Horita
  • Patent number: 8356977
    Abstract: The rotary damper for controlling helicopter motions includes an outer canister with an inner paddle wheel receiving cavity which receives an inner paddle wheel with upper and lower elastomeric tubular intermediate members between the inner paddle wheel and the outer canister. The canister and inner paddle wheel form neighboring variable volume chambers in liquid communication through liquid damping conduits. A clockwise rotation of the inner paddle wheel about the center of rotation axis relative to the outer canister pumps damper liquid from a second variable volume chamber through a first liquid conduit towards a first variable volume chamber, and a counterclockwise rotation of the paddle wheel relative to the outer canister pumps the damper liquid from the first variable volume chamber through the first liquid conduit towards the second variable volume chamber with the elastomeric tubular intermediate members providing for the relative rotation and containing the damper liquid in the damper.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: January 22, 2013
    Assignee: Lord Corporation
    Inventors: Peter J. Jones, Zachary Fuhrer
  • Patent number: 8336685
    Abstract: A damper includes a housing, a hollow outer rotor provided inside the housing, an inner rotor disposed inside the outer rotor to constitute a plurality of liquid chambers and rotating in a state decentered relative to an axial core of the outer rotor, a communicating passage connecting between the liquid chambers, and a valve mechanism moving inside the communicating passage. Viscous fluid is filled between the outer rotor and the inner rotor. When the pressure inside the communicating passage reaches a predetermined value or above due to the rotation of the inner rotor, the communicating passage is closed or a flow passage area of they communicating passage is narrowed, and when the pressure inside the communicating passage falls to the predetermined value or less, the communicating passage is opened.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: December 25, 2012
    Assignee: Nifco Inc.
    Inventor: Aiko Inaba
  • Publication number: 20120293923
    Abstract: A dampening assembly for a portable electronic device includes a housing. The housing includes a top portion and a bottom portion. A pivot arm is pivotably coupled to the bottom portion of the housing. A reservoir is defined between the top portion and the bottom portion. The reservoir includes at least one of a fluid and a viscous material. A first portion of the pivot arm is disposed within the reservoir. A second portion of the pivot arm extends through and above the top portion of the housing.
    Type: Application
    Filed: May 20, 2011
    Publication date: November 22, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Martin Earl HOLMAN, IV, Bruce Alan IVANIK, Douglas Wayne MOSKOWITZ
  • Publication number: 20120273310
    Abstract: A braking structure for a turning body includes an engagement device rotatably engaging a movable-side portion of a rotation damper with a base at a rotation center of the movable-side portion; a first fixing device fixing the movable-side portion relative to the turning body; and a second fixing device fixing a stationary-side portion of the rotation damper relative to the base. The engagement device includes an axis protrusion provided on one side of either the movable-side portion or the base, and a receiving portion provided on the other side of either the movable-side portion or the base, and receiving the axis protrusion from a direction perpendicular to a rotation axis of the rotation. Also, an inserting path for the axis protrusion continuing to the receiving portion is adapted to expand in the direction perpendicular to the rotation axis by an elastic deformation when the inserting path receives the axis protrusion.
    Type: Application
    Filed: November 12, 2010
    Publication date: November 1, 2012
    Applicant: NIFCO INC.
    Inventors: Masatora Seto, Keiji Yamaguchi, Shuichi Yuda
  • Patent number: 8286764
    Abstract: A rotational damper having a stator and a rotor that is rotatably supported in the stator, the rotor having a first friction element (31, 31 A . . . 31 F), wherein the volume between the stator and the rotor is filled with a viscous fluid. According to the invention, the rotor has a second friction element (32, 32A . . . 32F), which is supported coaxially in relation to the first friction element and rotationally coupled thereto, and which can be axially displaced relative to the first friction element. Due to the two-piece design of the friction element and the ability for axial displacement of the two friction elements, the entire effective surface of the friction element in the viscous fluid, and thus the frictional resistance and the damping characteristics of the rotational damper, can be varied. For this purpose, the second friction element preferably has a plurality of segments (5, 5A . . . 5F), which immerse into the first friction element and can be displaced by an actuator (4, 4A . . . 4G).
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: October 16, 2012
    Assignee: Dieter Holzle Technik-Projekte GmbH
    Inventors: Wilfried Weber, Jochen Heimsch
  • Patent number: 8266764
    Abstract: A hinge for a packaging or cargo box or the like, having a first and a second hinge leaf, the second hinge leaf has a first bushing and a second bushing located at a distance therefrom, between which a bushing of the first hinge leaf can be rotated about a mutual hinge axis. An axial tube is rotationally fixed to the bushing of the first hinge leaf and is pivot-supported in the bushings of the second hinge leaf. A torsion spring is disposed in the axial tube and attached to one end of the axial tube. A torque support connects the other end of the torsion spring to the second hinge leaf in a rotationally fixed manner. A damper for the hinge movement is connected to the second hinge leaf and the axial tube.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: September 18, 2012
    Assignee: SFS intec Holding AG
    Inventors: Sascha Costabel, Olav Schendel
  • Patent number: 8261894
    Abstract: The present invention provides a rotary damper in which both yields and braking characteristics can be enhanced. The rotary damper of the invention includes a valve mechanism which comprises an operating chamber 7 through which fluid can pass, a valve body 8 which forwardly moves from a natural state position when the valve body 8 receives fluid pressure and which can forwardly moves in the operating chamber 7, and a first spring 9 capable of giving a resistance to the forward movement of the valve body 8. The valve mechanism can reduce a flow rate of fluid which passes through the operating chamber 7 by a flow path 14 formed between the valve body 8 and a peripheral wall 7a of the operating chamber 7. A reducing amount of fluid can be increased as a moving distance of the valve body 8 which forwardly moves in the operating chamber 7 is increased.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: September 11, 2012
    Assignee: Kabushiki Kaisha Somic Ishikawa
    Inventors: Hidenori Kanno, Ryota Shimura, Masanori Itagaki
  • Patent number: 8210609
    Abstract: A damper 1 includes a vessel 2; a partitioning member 6 which partitions the interior of the vessel 2 into two accommodation chambers 4 and 5 for accommodating a viscous fluid 3, and which rotates together with the vessel 2 in an R direction and is movable in an axial direction A; a moving force imparting means 7 for imparting to the partitioning member 6 a moving force in an A1 direction by the input of rotation in an R1 direction; a resilient means 8 for resiliently urging the partitioning member 6 in an A2 direction; a through hole 9 for allowing the two accommodation chambers 4 and 5 inside the vessel 2 to communicate with each other; and an allowing/limiting member 10 which allows the viscous fluid 3 accommodated in the two accommodation chambers 4 and 5 in the vessel 2 to flow reciprocally between the two accommodation chambers 4 and 5 through the through hole 9, and which limits the flow of the viscous fluid 3 in the accommodation chamber 4 into the accommodation chamber 5 in the A2 direction through t
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: July 3, 2012
    Assignee: Oiles Corporation
    Inventors: Akihiko Okimura, Naohiro Horita, Yoshiteru Igarashi
  • Publication number: 20120152470
    Abstract: A decelerating device integrated with a blind structure includes a blind structure comprising a batten and a blind fabric disposed at the batten; a first decelerating unit disposed at an end of the batten; a winding unit coupled to an end of the first decelerating unit and disposed in the batten; and a second decelerating unit disposed at another end of the batten. The decelerating device prevents window blind damage and promotes user safety by precluding instantaneous upward winding of a blind fabric, as precluding instantaneous upward winding of the blind fabric follows increasing winding-induced resistance by first and second decelerating units while a batten is winding in the blind fabric by means of a winding mechanism.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 21, 2012
    Applicant: CHICOLOGY, INC.
    Inventor: Ju-Huai Chen
  • Patent number: 8191965
    Abstract: A damper 1 includes a vessel 2; a partitioning member 6 which partitions an internal space of the vessel 2 into two accommodation chambers 4 and 5 for accommodating a viscous fluid 3 and which is movable with respect to the vessel 2; a moving force imparting device 7 for imparting to the partitioning member 6 a moving force in an A1 direction by the input of rotation in an R2 direction with respect to the vessel 2, so that the moving velocity is set to one corresponding to the rotating velocity of that input of rotation; a resilient device 8 for resiliently urging the partitioning member 6 in an A2 direction; a communicating hole 9 formed in the partitioning member 6; and a flow limiting device 10 for limiting the flow of the viscous fluid 3 in the accommodating chamber 4 into the accommodating chamber 5 through the communicating hole 9 when the internal pressure of the viscous fluid 3 accommodated in the accommodating chamber 4 has exceeded a fixed value.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: June 5, 2012
    Assignee: Oiles Corporation
    Inventors: Akihiko Okimura, Yoshiteru Igarashi, Naohiro Horita
  • Patent number: 8186489
    Abstract: In a pull arrangement including a housing with a guide structure movably supporting a carrier element which has a park position at one end of the guide structure and a rest position at the other end and a reversing structure is provided at the other end of the guide structure and a tension spring extending around the reversing structure is connected with one end to the carrier element and the opposite end to the housing for moving the carrier element to the end position, the tension spring comprises an area of high spring stiffness where it extends around the reversing structure and an area of low spring stiffness where the spring is connected to the housing away from the reversing structure.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: May 29, 2012
    Inventors: Günther Zimmer, Martin Zimmer
  • Patent number: 8181755
    Abstract: A damper has a piston having an axis, an outer surface, and opposing ends. Elastomeric seals are in sealing contact with the outer surface of the piston, the seals being coaxial with the piston and limiting movement of the piston to a path along the axis of the piston. The seals also define fluid chambers adjacent the ends of the piston. A primary passage communicates the fluid chambers, and a selectively switchable valve for controls a flow of fluid from one of the chambers to another of the chambers through the primary passage. When the flow of fluid through the primary passage is permitted, movement of the piston is resisted by a first spring rate due to a shear force required to cause shear deflection of the seals. When the flow of fluid through the primary passage is restricted, movement of the piston is resisted by a second spring rate due to a fluid force required to cause bulging deflection of the seals.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: May 22, 2012
    Assignee: Textron Innovations Inc.
    Inventors: Frank B. Stamps, David A. Popelka, Michael R. Smith, Christopher M. Bothwell, Lawrence M. Corso, James L. Braswell, Jr., Ernst C. Schellhase, Charles L. Hollimon, Thomas J. Newman, Bryan Baskin, Thomas C. Campbell, Daniel B. Robertson
  • Patent number: 8182055
    Abstract: Disclosed is a refrigerator. The refrigerator includes a body, a refrigerator door for opening/closing a front surface of the body, with the refrigerator door having an opening, an auxiliary door for opening/closing the opening of the refrigerator door, and a damping unit coupled to a hinge shaft of the auxiliary door to control an opening/closing speed of the auxiliary door. The damping unit includes a case, a rotating member rotatably installed in the case, oil filled in the case to apply resistance against rotation of the rotating member, a fixing member coupled to an end portion of a rotating shaft of the rotating member to rotate together with the rotating member, and an elastic member provided between the case and the fixing member to apply elastic force to the fixing member in a direction opposite to an opening direction of the auxiliary door. It is possible to stably rotate the auxiliary door while controlling the rotational speed of the auxiliary door.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: May 22, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwon Chul Yun, Chang Hun Cho
  • Patent number: 8177042
    Abstract: In a rotary damper capable of being easily assembled by reducing the remaining air inside an accommodation portion and reducing the non-uniformity of damping torque, a center shaft 73 is provided in the center of a fixing and supporting member 71, an inner cylinder wall 63 into which the center shaft 73 is inserted rotatably is provided in a driven rotation member 61, an O ring 81 which prevents the leakage of viscous fluid 101 from between the driven rotation member 61 and the fixing and supporting member 71 is provided, a first path 70 which enables the accommodation portion 91 to communicate with its outside is provided between the center shaft 73 and an inner circumference face of the inner cylinder wall 63, and a hole 63c which allows the bottom side of the O ring 81 inside the accommodation portion 91 to communicate with the first path 70 is provided in the driven rotation member 61.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: May 15, 2012
    Assignee: Nifco Inc.
    Inventors: Shunsuke Okabayashi, Ken Hayashi
  • Patent number: 8167100
    Abstract: A damping device comprises an axle, a housing, a unidirectional member, and a damping oil. The unidirectional member in cross section is formed like a T-shape, and a top portion thereof is formed as an arc to cooperate with the housing's inner wall. Where the unidirectional member contains a U-shaped slot is defined oil holes interlaced with the gap of the first slot wall. The lifting of the cover generates little damping and the closing thereof generates a variable and yet optimal damping. The undersized unidirectional member also adds strength to the structure. The diminished cross-section of the unidirectional member contributes to a smaller U-shaped slot.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: May 1, 2012
    Assignee: Hoti (Xiamen) Plumbing Inc.
    Inventor: Guo-Bin Chen
  • Publication number: 20120090932
    Abstract: A damper includes a rotary shaft, a sleeve, damping oil, and the damping oil is filled in a closed chamber formed between the rotary shaft and the sleeve; cooperating grooves are formed on the rotary shaft; partition parts are formed between the two cooperating grooves; oil passing holes provided on the partition parts are communicated with the two cooperating grooves; the oil passing holes are controlled by the check valves to make the damping oil flow in a single direction between the two cooperating grooves; the rotary shaft passing through the cooperating hole on the necking stop wall of the sleeve is connected by a connection member; two spacers are integrated with the sleeve; the height of the spacers locating in the cooperating grooves just fits in with the depth of the cooperating groove; an oil passing gap formed between the rotary shaft and the sleeve and is variable.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 19, 2012
    Inventor: Zhifang Liu
  • Publication number: 20120091767
    Abstract: A damper includes a vessel; a partitioning member which partitions an internal space of the vessel into two accommodation chambers for accommodating a viscous fluid and which is movable with respect to the vessel; a moving force imparting device for imparting to the partitioning member a moving force in an A1 direction by the input of rotation in an R2 direction with respect to the vessel, so that the moving velocity is set to one corresponding to the rotating velocity of that input of rotation; a resilient device for resiliently urging the partitioning member in an A2 direction; a communicating hole formed in the partitioning member; and a flow limiting device for limiting the flow of the viscous fluid in the accommodating chamber into the accommodating chamber through the communicating hole when the internal pressure of the viscous fluid accommodated in the accommodating chamber has exceeded a fixed value.
    Type: Application
    Filed: November 28, 2011
    Publication date: April 19, 2012
    Applicant: OILES CORPORATION
    Inventors: Akihiko OKIMURA, Yoshiteru Igarashi, Naohiro Horita
  • Publication number: 20120073919
    Abstract: A damper assembly incorporating a bushing adapted to rotate within a wall structure and engage a post on a bin or other element to be controlled. The bushing defines a hub of an integral, coaxial rotor which rides within a fluid containing housing. The bushing and rotor rotate concurrently about a common axis during rotation of the bin or other device being controlled. The drag on the rotor thereby slows the rotation of the engaged post and the associated bin or other structure being controlled.
    Type: Application
    Filed: May 13, 2010
    Publication date: March 29, 2012
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventors: Toby Berry, JR., David A. Doornbos, Daniel P. Calby
  • Patent number: 8136645
    Abstract: A rotary damper is provided and includes: a housing; an annular ring member that is provided in the housing, and is made of elastomer or flexible rubber; a shaft body that is accommodated in a rotatable manner in the housing; and a sliding portion that is provided in the housing and makes contact with the ring member so as to freely slide with respect to the ring member along the circumferential direction thereof, in which: the ring member has an abutting portion that abuts the sliding portion, and a hollow portion provided inside the ring member; the hollow portion has an opening portion on the side opposite to the abutting portion; in the state of having enclosed gas in the hollow portion, the opening portion is hermetically joined to the inner surface of the housing; a projected portion that engages with the opening portion of the hollow portion is provided on the inner surface of the housing; and a pressing member that presses the ring member toward the inner surface of the housing is provided on the inne
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: March 20, 2012
    Assignee: Advanex Inc.
    Inventors: Masahiro Kobayashi, Naotoshi Saito, Kiyoshi Chikashige
  • Publication number: 20120037580
    Abstract: Provided is a financial device, which comprises a medium cassette, a cassette box, and a shock prevention apparatus. The medium cassette accommodates a medium. The medium cassette is installed on the cassette box. The shock prevention apparatus is disposed between a portion of the medium cassette and a portion of the cassette box facing the portion of the medium cassette. The shock prevention apparatus prevents a shock from being applied to the medium cassette while the medium cassette is installed on the cassette box.
    Type: Application
    Filed: August 5, 2011
    Publication date: February 16, 2012
    Applicant: LG N-SYS INC.
    Inventor: DOWAN KIM
  • Patent number: 8096393
    Abstract: In the breakdown preventive mechanism of a rotary damper, when the upper rotor is rotated in one direction, a communication path is formed between the valve body and the lower rotor, and the pressure in the pressure chamber is formed between the lower rotor and the lower housing is lowered, and rotation is easily performed. When the upper rotor is rotated in another direction, the viscous fluid does not flow between the valve body and the lower rotor, and the pressure in the pressure chamber formed between the lower rotor and the lower housing is raised. As a result, the viscous fluid pushes down the relief valve and a cage type relief valve by resisting the elastic element, and thereby prevents breakdown of the rotary damper.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: January 17, 2012
    Assignee: Nifco Inc.
    Inventors: Takahiro Saito, Hideaki Takahashi
  • Patent number: 8079450
    Abstract: A damper assembly includes a fixed rack gear, a rotary gear damper having a gear engaged with the rack gear, and a tether movable with the damper along the rack gear and connected to the movable object to be controlled by the damper. A biasing element normally urges the damper away from anti-rotation locking members.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: December 20, 2011
    Assignee: Illinois Tool Works Inc.
    Inventors: Chad K. Zeilenga, Joseph J. Bella, David Doornbos, Jeffery Cascio
  • Patent number: 8061448
    Abstract: The hydraulic braking device (10) to be installed in a turbine (2) provided with a turbine shaft (4) comprising at least one body (12) connected to the said turbine shaft (4). When the said hydraulic braking device (10) is immersed in a fluid medium, axial rotation of the turbine shaft (4) about its axis causes a movement of the said at least one body (12) with respect to the said fluid medium, this movement generating a resisting torque (T) related to the rotation speed of the turbine shaft (4) through a non-linear relation.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: November 22, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Philippe Hocquet, Huy-Van Nguyen, Andrew Parry
  • Patent number: 8061697
    Abstract: A rotatable wheel having a rotary shock absorber coupled on an axle and between a disc brake rotor and the rotatable wheel, for providing enhanced suspension. The rotary shock absorber consists of an air-tight hollow disc structure filled with lubricant, the disc structure further having a central circular opening, a sealing plate coupled to and sealing the central circular opening on one side, a sealing boot portion coupled and sealing the central circular opening on the other side, and a circular hub portion nesting inside the hollow disc structure. The hub portion further has six circular through holes, one or more identical helical springs nested firmly inside each of the six circular through holes, and six lug bolts each having two threaded ends and a smooth body. Each of the six lug bolts is further coupled rigidly and perpendicularly at the center of each of the two corresponding helical springs and secured on both ends at each side of the hollow disc structure.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: November 22, 2011
    Inventor: Raymond J. Lee