With Rack And Pinion Patents (Class 74/89.11)
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Patent number: 8893569Abstract: Disclosed is a power-transmitting apparatus. A power-transmitting apparatus of the present invention comprises: a pin gear provided with a plurality of pins capable of rolling movement; and a spur gear provided with a plurality of teeth and en-gagingly coupled to the pin gear so as to be relatively movable, wherein the spur gear teeth are formed with a cycloid tooth shape, and a polygonal tooth root space is formed at a tooth root region of the spur gear. As compared to a trochoid tooth shape, the tooth shape of the spur gear engagingly coupled to the pin gear so as to be relatively movable according to the present invention has a greater tooth size so that it can be applied as a cycloid tooth shape capable of maintaining a sufficient tooth contact ratio, and can resolve a reduction in tooth thickness and the wedging of the pins from an undercut at the tooth root region.Type: GrantFiled: May 4, 2010Date of Patent: November 25, 2014Assignee: Sejin-Igb Co., Ltd.Inventor: Sun Ho Lim
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Patent number: 8801320Abstract: A joint device connects a first and second members and allows pivotal motion of one or both members. The joint device includes a housing having a slide surface and a guide surface. First and second rotating members are supported for rotation by the housing to pivot one or both members. A slide member carrying a spring is supported for movement on the slide surface with rotation of the rotating members. The spring is coupled to the first rotating member, and has an arm arranged for movement along the guide surface as the slide member moves along the slide surface. The spring member imparts a bias torque on the first rotating member, where the bias torque magnitude changes as the slide member moves along the slide surface.Type: GrantFiled: June 26, 2012Date of Patent: August 12, 2014Assignee: Koncept Technologies Inc.Inventor: Peter Ng
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Patent number: 8683887Abstract: A rack-and-pinion steering apparatus comprises pinion teeth formed according to proper tooth specifications in other aspects under a larger pressure angle, thereby stably offering smooth and comfortable steering feeling over a long time. The module (m), number of teeth (z), tooth depth (h) and helix angle (?) of the pinion teeth (4) are set within the following ranges, under a pressure angle (?) set within a range of 24° to 30° and a given stroke ratio. module (m): 1.8 to 2.0 number of teeth (z): 7 to 13 tooth depth (h): 2 m to 2.Type: GrantFiled: January 12, 2005Date of Patent: April 1, 2014Assignee: JTEKT CorporationInventors: Takayasu Yamazaki, Shirou Nakano
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Patent number: 8671788Abstract: Disclosed is a power-transmitting apparatus The power-transmitting apparatus of the present invention comprises: a pin gear provided with a plurality of pins capable of rolling movement; a spur gear provided with a plurality of teeth and engagingly coupled to the pin gear so as to be relatively movable; and a lubricant supplying unit provided on the pin gear to supply lubricant to the plurality of pins. According to the present invention, by regularly applying a lubricant, the occurrence of problems such as the adherence of external dust and the efflorescence of the lubricant can be reduced, and in particular, because lubricant can be self-supplied to the plurality of pins provided on the pin gear, as opposed to the prior art, the task of applying a lubricant can be easily performed.Type: GrantFiled: May 4, 2010Date of Patent: March 18, 2014Assignee: Sejin-IGB Co., Ltd.Inventor: Sun Ho Lim
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Patent number: 8522636Abstract: The present invention provides a rectilinear motion device 1 including: a linear rack 13 having a plurality of teeth 13T; a main drive pinion 24 that meshes with the teeth 13T of the rack 13; an auxiliary drive pinion 25 that meshes with the teeth 13T of the rack 13 in a position away from the main drive pinion 24; a main drive motor 22 that rotationally drives the main drive pinion 24; an auxiliary drive motor 23 that rotationally drives the auxiliary drive pinion 25; and a movable carrier 20 to which the main drive motor 22 and the auxiliary drive motor 23 are secured and that moves along the rack 13 with rotational driving of the main drive motor 22 and the auxiliary drive motor 23, wherein the auxiliary drive motor 23 is rotationally driven, in stopping the moving movable carrier 20, in a reverse direction to a driving direction of the main drive motor 22 in motion.Type: GrantFiled: March 9, 2010Date of Patent: September 3, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventor: Toyokazu Uchida
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Patent number: 8464603Abstract: An actuating device includes a base link, a first link, a second link, a translating link, a shaft, and a drive. The base link includes a base plate, a first joint, and a second joint. The base plate extends between the first joint and the second joint. The first link is mounted to the first joint to allow rotation of the first link relative to the base plate at the first joint. The second link is mounted to the second joint to allow rotation of the second link relative to the base plate at the second joint. The drive includes an arc surface and is mounted to the translating link such that, when operating the actuating device, a position of the arc surface is fixed relative to the translating plate. The shaft is mounted to the arc surface to cause translation of the translating link as the shaft rotates.Type: GrantFiled: September 19, 2011Date of Patent: June 18, 2013Assignee: Vivero One Research, LLCInventor: Arthur Quaid
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Patent number: 8266975Abstract: An electronic assembly comprises a rotation device comprising a fixed platform defining a through hole. An annular groove is formed in the inside wall of the fixed platform. A first transmission element seats a plurality of teeth. A second transmission element is located in the through hole, and comprises a threaded axis portion and a toothed portion meshing with the plurality of teeth. A third transmission element comprises a rotation portion rotatably mounted in the interior of the annular groove of the fixed platform. A threaded hole is defined in the rotation portion, and is configured for cooperating with the threaded axis portion. A driver source is fixed on the fixed platform and is configured for rotating the first transmission element. An electronic device is mounted on the third transmission element.Type: GrantFiled: December 30, 2009Date of Patent: September 18, 2012Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Kim-Yeung Sip, Jin-Shi Lai
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Patent number: 8079280Abstract: A rack-and-pinion type steering apparatus 1 includes a gear case 3 made of aluminum or an aluminum alloy and having a hollow portion 2; a steering shaft 6 rotatably supported by the gear case 3 through rolling bearings 4 and 5; a pinion 7 which is rotatably supported in the gear case 3 through the steering shaft 6; a rack bar 9 on which rack teeth 8 meshing with the pinion 7 are formed; and a rack guide 10 which is disposed in the hollow portion 2 inside the gear case 3 and supports the rack bar 9 slidably with respect to its moving direction A.Type: GrantFiled: March 4, 2005Date of Patent: December 20, 2011Assignee: Oiles CorporationInventors: Shuichi Kubota, Yoshiro Kuzumi, Hidetoshi Kaida
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Patent number: 7677034Abstract: A diesel engine with an associated rotary pump pumps a fluid in a path of travel. A linear cylinder motor oscillates a disc. First and second multi stage cylinder pumps with associated attachment members operate in response to the movement of the disc. A hydraulic motor with a generator and pressure tank has a line for feeding fluid. An electric motor with a pressure tank and lines feeds fluid from the multi stage cylinder pumps to the pressure tank and feeds fluid from the pressure tank to the generator for powering the generator.Type: GrantFiled: September 11, 2007Date of Patent: March 16, 2010Inventor: Gerald P. Mazza
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Patent number: 7607365Abstract: A drive mechanism having a first and second side plate opposite each other that rotatably hold an engagement shaft and a gear shaft. A rack passes between the gear shaft and engagement shaft. The first and second side plates are allowed to float vertically in a frame. The gear is maintained in constant contact with the rack when the rack is moved vertically within the frame.Type: GrantFiled: April 5, 2007Date of Patent: October 27, 2009Assignee: Liftco, Inc.Inventor: Duane O. Courser
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Patent number: 7559280Abstract: An adjustable link assembly includes an elongate frame member having a first connection structure at an upper end thereof, a threaded drive shaft, a motor operably connected to the threaded drive shaft to enable rotation of the threaded drive shaft, a slide block operatively engaged in a sliding relationship with the frame member and operatively engaged in a driving relationship with the threaded drive shaft, and a lower frame member having a base portion and two leg portions extending from the base portion pivotally connected to the slide block and having a second connection structure at a lower end thereof. The threaded drive shaft is rotatably connected to the frame member at first and second ends of the threaded drive shaft. Rotation of the threaded drive shaft drives sliding movement of the slide block with respect to the frame member.Type: GrantFiled: August 8, 2006Date of Patent: July 14, 2009Assignee: United Technologies CorporationInventor: Amir M. Kalantari
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Patent number: 7441475Abstract: A rack-and-pinion steering system, in particular for lighter commercial vehicles, has a housing, a toothed rack, a driven element and a servo unit. The driven element is arranged between the toothed rack and the servo unit.Type: GrantFiled: August 2, 2006Date of Patent: October 28, 2008Assignee: TRW Automotive GmbHInventors: Eugen Eberhart, Johannes Hullmann, Gregor Watzlawek
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Patent number: 7281444Abstract: This invention relates to a yoke assembly (156) adapted for use in a rack and pinion steering gear assembly (10) for a vehicle. The yoke assembly (156) includes a yoke housing (302) having a bore (304). The bore (304) defines an inner surface (307). A bearing (320) is disposed in the bore (304), the bearing (320) defining an outer surface (322). A ring (324) is also disposed in the bore (304). The ring (324) includes an inner contact surface (334, 336) and an outer contact surface (338). The inner contact surface (334, 336) engages at least a portion of the inner surface (307) of the bore (304) and the outer contact surface (338) engages at least a portion of the outer surface (322) of the bearing (320).Type: GrantFiled: December 5, 2003Date of Patent: October 16, 2007Assignee: TRW Automotive U.S. LLCInventor: Phillip A. Bishop
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Patent number: 7210365Abstract: A guide section (1) for guiding a slide for a power tool along a longitudinal axis (A) with a separate axial toothed rack (3) for longitudinal advance of the slide having the toothed rack (3) arranged in an outwardly open receiving groove (4), with outwardly oriented toothing (5). The toothed rack (3) in cross-section forms at least two opposing sides (6a, 6b) laterally undercut relative to the toothing, in which the groove edges (7) of the receiving groove (4) are at least partially inserted and secured.Type: GrantFiled: January 27, 2004Date of Patent: May 1, 2007Assignee: Hilti AktiengesellschaftInventor: Rudolf Reitberger
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Patent number: 7069695Abstract: An automatically opening/closing apparatus for vehicle of rack-and-pinion type is reduced in size and weight. The automatically opening/closing apparatus for vehicle is automatically opened/closed, by transmitting rotation of an electric motor to a back door through a drive power transmitting mechanism comprising a pinion and a rack. The rack is supported linearly reciprocably by a slide mechanism comprising a slide block and a guide rail. The slide block is formed to be sufficiently short to the entire length of the rack and the guide rail is accordingly formed to be short. Further, the rack is provided with a groove portion, and a holding member contacting with a holding face is disposed in the groove portion. Then, an interval between the rack and the opinion is maintained by the holding member, whereby engagement of the pinion therewith is ensured.Type: GrantFiled: October 8, 2004Date of Patent: July 4, 2006Assignees: Honda Motor Co., Ltd., Mitsuba CorporationInventors: Takeshi Hattori, Tomofumi Ichinose, Yoshitomo Ihashi, Toshihisa Omori, Yasushi Yoshida
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Patent number: 6891344Abstract: The invention provides to make an automatic opening and closing apparatus for a vehicle to be thin. An outer rack is attached to an outer side of a stay fixed to a vehicle in such a manner as to freely move in an axial direction along the stay. A thickness of the stay is set to be smaller than a width, and a cross sectional shape thereof is formed so as to be in a substantially thin convex shape. A width in a base end wall portion of the outer rack is formed so as to be larger than a width of a side surface wall portion corresponding to a thickness of the outer rack, and the outer rack is formed in a substantially thin C cross sectional shape. It is possible to make a thickness of a slide mechanism about a gear with of rack gears lined up in an axial direction in the side surface wall portion by making the width of the side surface wall portion slightly larger than the gear width of the rack gear.Type: GrantFiled: January 24, 2003Date of Patent: May 10, 2005Assignee: Mitsuba CorporationInventors: Hiroshi Sakai, Yasushi Yoshida, Takashi Hoshino, Seiji Shioiri, Takao Ochiai
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Patent number: 6810767Abstract: A lock comprising a roller stop having a forward end; at least a first roller receiving concavity mounted for movement across the forward end of the roller stop; a roller mounted for movement between forward and rearward positions, the roller, while at its forward position, extending into the at least first roller receiving concavity and overlying the forward end of the roller stop; a plunger having a forward end and a rearward end, the plunger being mounted for motion between forward and rearward positions, the plunger, while at its forward position, holding the roller at its forward position, the plunger, while at its rearward position, allowing the roller to move to its rearward position; and a toggle mounted for alternate flexion and hyperextension, the toggle, upon hyperextension, holding the plunger at its forward position, the toggle, upon flexion, holding the plunger at its rearward position.Type: GrantFiled: July 22, 2002Date of Patent: November 2, 2004Assignee: Aerospace Systems & Components, Inc.Inventor: Warren Dale Sutton, Sr.
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Publication number: 20040103731Abstract: To provide a backlash-free rack simple in structure and small in size, still assuring that no backlash is caused in reciprocating a movable part in an electronic device toy, or watch et al, the rack structure comprises first and second toothed bars both integrally connected to each other by an intermediate joint made of a soft resin material to provide a linear toothed bar object. The linear toothed bar object is so folded about the intermediate joint that the first and second toothed bars are somewhat staggered and laid on each other with their teeth out of phase, thereby preventing the backlash which otherwise, would be caused between the teeth of the rack and those of the pinion.Type: ApplicationFiled: November 28, 2003Publication date: June 3, 2004Inventors: Taizo Minowa, Kouji Azai, Kazuhiro Watanabe
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Patent number: 6378392Abstract: A drive assembly for a toothed rack and channel track type of power liftgate attaches the liftgate lift rod to the toothed rack indirectly, through a shoe-yoke assembly that transfers axial loads, but isolates the rack from non axial reactive loads transferred through the lift rod. A rigid yoke fits closely within axially spaced ends of a notch in the rack, but has a clearance elsewhere from the outside of the rack. The outside of the yoke is closely surrounded by a shoe, which provides a close fitting, slidable bearing layer with the inside of the channel track, maintaining the yoke to rack clearance. The maintenance of the yoke-rack clearance prevents the transmission of undesired reactive loads back to the rack through the yoke.Type: GrantFiled: August 22, 2000Date of Patent: April 30, 2002Assignee: Delphi Technologies Inc.Inventors: Douglas Dombrowski, Howard Warren Kuhlman, Lloyd Walker Rogers, Jr., Michael G Wygle
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Patent number: 6179527Abstract: Apparatus for inserting flexible members such as tie-back anchors for slope stabilization or prefabricated vertical drains into underlying earth which includes an articulatable mast to be arranged with a generally upright extent above the underlying earth. An elongated earth penetrating tube or mandrel is carried by the mast for guided movement therealong and for receiving a flexible member for movement with the mandrel to insert the flexible members into the underlying earth. A drive is mounted on the mast and engaged with this mandrel for driving the mandrel into and out of the underlying earth. A vibrator assembly is mounted for imparting vibrations to the mandrel to assist movement of the mandrel in underlying earth when a vibrator is energized. The vibrator assembly includes a circular gear mounted for concentric rotation on an axis and supported for rotation about its axis on a frame carried by the vibrator.Type: GrantFiled: April 5, 1999Date of Patent: January 30, 2001Inventor: R. Robert Goughnour