Quotables
"Radio has no future."
Lord Kelvin, British mathematician and physicist ; 1897
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8074531 | Electric power steering apparatus An electric power steering apparatus comprises a transmission mechanism having a drive gear and a driven gear. One end of the drive gear is supported by a bearing hole in a housing through a bearing and a curved plate spring. The curved plate spring comprises a main... | 12/13/2011 |
| 7954395 | Steering apparatus In the event that a moment in a bending direction is generated in a pinion shaft, for example, when a vehicle is involved in a collision or the like, since a bending facilitating portion which is a circumferential groove 111e bends, stress is concentra... | 06/07/2011 |
| 7930950 | Motor-driven steering assist apparatus In a motor-driven steering assist apparatus, a gear train transmitting a rotation of an electric motor to an output shaft comprises a single unit body surrounded by housings, and an attaching boss to a vehicle body side bracket is provided in a lower surface of the ... | 04/26/2011 |
| 7930951 | Rack and pinion steering gear with self-adjusting rack bearing A steering gear assembly with a pinion shaft, rack, housing and rack bearing. A biasing assembly biases the rack bearing against the rack and into engagement with the pinion. The biasing assembly includes a gross adjustment member secured to the housing, a bearing a... | 04/26/2011 |
| 7806016 | Worm gear mechanism having worm, torque-transmitting worm wheel and auxiliary worm wheel and electric power steering apparatus including the same A worm gear mechanism includes a worm, a torque-transmitting worm wheel meshing with the worm, and an auxiliary worm wheel disposed concentrically with the torque-transmitting worm wheel. The auxiliary worm wheel has a pitch circle diameter set to be greater than a ... | 10/05/2010 |
| 7798033 | Power-assisted steering having a gear mechanism A power-assisted steering system includes a gear mechanism, coupled to a steering column, with a gear and a mating gear. The two transmission gears have teeth (4, 5) via which they engage with each other, movement and power being transmitted from one gear to ... | 09/21/2010 |
| 7765888 | Steering apparatus A steering apparatus comprises a bearing for supporting a pinion shaft so as to be rotatable and a high-rigidity member for holding the bearing in a state where it is positioned with respect to a housing. The housing comprises cylindrical first and second housings w... | 08/03/2010 |
| 7665378 | Electric power steering apparatus An electric power steering apparatus includes a transmission mechanism for transmitting an output from an electric motor for steering assist to a steering mechanism. The transmission mechanism includes a driving gear, an intermediate gear and a driven gear. An eccen... | 02/23/2010 |
| 7654165 | Composite steering rack A steering rack for a vehicle rack and pinion steering gear and a method of manufacturing a steering rack includes a first member having a toothed region, attached to a tubular second member, the second member includes a bore, the cross section of the bore being cir... | 02/02/2010 |
| 7591204 | Belt speed reducing apparatus for electric power steering apparatus and electric power steering apparatus A belt speed reducing apparatus for an electric power steering apparatus includes a drive pulley having a first helical gear, a driven pulley having a second helical gear and a drive belt having a third helical gear in which a relationship of tan β | 09/22/2009 |
| 7461571 | Vehicle steering apparatus A vehicle steering apparatus comprises a rack shaft, a joint provided at an end of the rack shaft, a stopper for regulating a stroke amount of the rack shaft, and a spacer. The spacer comprises an annular elastic member and an annular metal member. The elastic membe... | 12/09/2008 |
| 7458290 | Rack and pinion type steering gear A rack and pinion type steering gear includes a pinion, a rack bar formed therein with a rack gear which is engaged with the pinion, a first tie rod and a second tie rod which are disposed in both right and left ends of the rack bar, and a first ball joint and a sec... | 12/02/2008 |
| 7458291 | Self-sealing yoke assembly for a steering apparatus A rack and pinion steering system including a rack slidably supported within a housing that engages in a pinion gear wherein the housing includes a cylindrical sleeve having an outer seal surface with a slight medial taper at one end thereof. A yoke assembly, which ... | 12/02/2008 |
| 7441475 | Rack-and-pinion steering system, in particular for light commercial vehicles 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. ... | 10/28/2008 |
| 7413051 | Electric power steering apparatus Since a nut 45 is provided with paths for connecting rolling paths 23b, 45f and circulating paths 45c, that is, return paths 45d at end caps 45b, 45b attached to both ends of ... | 08/19/2008 |
| 7406890 | Steering controller of vehicle There is provided a steering control device for a vehicle of a new structure utilizing a ball screw mechanism for compacting the structure. The steering control device for a vehicle includes a first input shaft 1 connected to a handle, a second input shaft | 08/05/2008 |
| 7377194 | Worm gear mechanism and electric power steering apparatus equipped with the worm gear mechanism Worm gear mechanism is provided which includes a worm, a torque-transmitting worm wheel and an auxiliary worm wheel. In order to secure a sufficient face width of the torque-transmitting worm wheel, a pitch diameter of the auxiliary worm wheel is set to be greater t... | 05/27/2008 |
| 7377355 | Motor-driven power steering apparatus for a vehicle In a motor-driven power steering apparatus for a vehicle in which a worm wheel of a worm gear type speed reduction mechanism is fixed to a pinion shaft of a rack and pinion mechanism, a direction of a torsion angle β of a helical pinion provided in the pinion shaft... | 05/27/2008 |
| 7377193 | Automotive steering mechanism housing A composite tubular housing for an automotive steering system, preferably an electronic power assist steering system, is formed of seamless metal tube section welded into an integral component. The housing includes a rack section and a pinion section having an openi... | 05/27/2008 |
| 7364005 | Steering system A steering system for a vehicle includes a shaft that is rotatably mounted on a frame in a bearing, the shaft being functionally linked with a steered wheel for adjusting the steering angle thereof, and a structure for axially positioning the shaft in the frame. In ... | 04/29/2008 |
| 7360467 | Worm reduction gear and electric power steering apparatus A torsion coil spring 30 applies an elastic force to a worm shaft 29 in a direction towards a worm wheel, via a pre-load pad 70. The pre-load pad 70 restricts displacement in relation to the widthwise direction, by one side face portion o... | 04/22/2008 |
| 7357216 | Electric power steering apparatus A ball bearing 34 serving as a support reference for a pinion shaft 2 is located directly under a worm wheel 51. Thus, even when a temperature change occurs around the electric power steering apparatus, the engagement position between the worm w... | 04/15/2008 |
| 7337695 | Transmission casing A casing has casing parts and fastening elements, wherein the casing parts are connected to one another by the fastening elements. The fastening elements are located inside the casing so that the exterior of the casing is free of projections and recesses. A first on... | 03/04/2008 |
| 7322256 | Ball screw mechanism for electric power steering apparatus A first ball circulating hole and a second ball circulating hole for connecting a circulator are bored midway at a screw groove formed on an inner circumference of a ball nut, an intermediate groove path between the first and second ball circulating holes becomes th... | 01/29/2008 |
| 7309073 | Steering system A rack shaft has a rolling contact surface on the opposite side of rack teeth across an axis line X, and a pair of slanted surfaces extending in parallel with the axis line across the rolling contact surface. Furthermore, a roller rolling on the rolling contact surf... | 12/18/2007 |
| 7306535 | Vehicle steering device and method A vehicle steering device may include a rotatable input shaft, a motor in communication with an input augmentation shaft, the input augmentation shaft and the input shaft sharing a longitudinal axis, and the motor further having a stator stationary with respect to r... | 12/11/2007 |
| 7305901 | Rack-and-pinion steering A rack-and-pinion steering system, in particular for a motor vehicle, has a steering housing and a pinion which is inserted into the steering housing If. A rack whose toothing engages with the pinion is mounted so as to be axially displaceable in the steering housin... | 12/11/2007 |
| 7303045 | Motor vehicle steering device A compact and highly reliable motor vehicle steering device that does not require a spiral flat cable. The motor vehicle steering device includes variable gear ratio system that modifies the transmission ratio of the rotary motions between first steering shaft and s... | 12/04/2007 |
| 7284634 | Electric power steering apparatus An electric power steering apparatus comprises a rotary shaft member connected to a steering wheel, an elongate member, a rack-and-pinion mechanism, a ball screw mechanism constructed of a screw member, a nut member and a multiplicity of balls interposed between the... | 10/23/2007 |
| 7281444 | Rack and pinion gear yoke assembly 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) define... | 10/16/2007 |
| 7278334 | Electric power steering apparatus An electric power steering apparatus comprises an electric motor for producing a steering assist force, and a speed reduction mechanism for decelerating the rotation of an output shaft in the electric motor. The speed reduction mechanism comprises an input pulley dr... | 10/09/2007 |
| 7275456 | Method of production rack guide base body in rack-and-pinion type steering device and rack guide A rack guide includes a rack guide base body which has on its outer peripheral surface a pair of semicylindrical surfaces and a pair of planar surfaces each located between the pair of semicylindrical surfaces, has a concavely recessed surface located on one axial e... | 10/02/2007 |
| 7275618 | Electric power steering device To provide an electrically driven power steering apparatus with a simple structure, which can prevent overloading of an electrical motor and a power transmission system, an absorbing member (121) is attached to a rack shaft (112), and is brought into c... | 10/02/2007 |
| 7258034 | Rack bar of power steering gearbox Disclosed is an apparatus for protecting impact to a rack bar of a power steering gearbox comprising an oil pressure cylinder, to which oil which has passed through an oil pressure pump and a rotary valve is supplied through a left port or right port, a rack bar dis... | 08/21/2007 |
| 7258035 | Rack and pinion steering device The invention relates to a rack and pinion steering device having a rack (1) which is arranged in a housing (4) and is connected at both ends to the steerable wheels via track rods (6) and steering arms, and having a pinion (2) which enga... | 08/21/2007 |
| 7243570 | Power-assisted steering with electric motor locking device A power-assisted steering with a superimposing gear mechanism enables safe steering behavior independently of the type of transmission used. A mechanical lock is mounted at a part of the transmission, preferably at the screw itself. In the event of a malfunction, th... | 07/17/2007 |
| 7243569 | Power transmission device, electric power steering device, and method of producing the same In order to achieve low cost, small size, and light weight, to improve response at the time of transmission of power, and to prevent the occurrence of unusual noise, a power transmission device (10) of an electric power steering device (1) has a motor ... | 07/17/2007 |
| 7240762 | Electric power steering apparatus A gearing radius of a worm wheel is set corresponding to a neighborhood region of a steering neutral position, in such a way as to be relatively large. Thus, backlash is made to be relatively small. This prevents noises from being produced when an automobile travels... | 07/10/2007 |
| 7228933 | Electric power steering device and joint In order to solve a problem of an electric power steering device of an automobile that the steering feeling is deteriorated by dragging the inactive electric motor if a steering member is operated at a small angle to leave an electric motor inactive while the automo... | 06/12/2007 |
| 7217106 | Electro-hydraulic power steering apparatus An electro-hydraulic power steering apparatus includes: a motor having a rotational shaft and provided with a bearing for rotatably bearing the rotational shaft; a hydraulic pump disposed at one end of the rotational shaft of the motor and driven by the motor; a fir... | 05/15/2007 |
