Nsk Corporation

Masaki Tomaru

Naoki Sawada

Ryuuichi Ishida

Seiichi Moriyama

Sakae Matsumoto

Ryou Oosawa

Toshimichi Takano

Kazuya Fukuda

Takahiro Saito

Akira Ichikawa

Kiyoshi Sadakata

Isamu Chikuma

Yasushi Watanabe

Takeshi Fujiwara

Yuuichi Tomaru

Wataru Hagiwara

Shin Yoshimoto

Yuichiro Fukunaga

Yasuhiro Shibuya

Kouhei Yonezawa

Tomonao Nagamura

Chie Mitsuhashi

A design assistance device for a steering device and a method of assisting a steering device design which assists a design of a steering device including an intermediate shaft by using existing components of a tube yoke and a shaft yoke. A design assistance devicefor a steering device displays a select button on a display device when a fitting length of the combination of a candidate component of the tube yoke and a candidate component of the shaft yoke satisfies a condition of a fitting length. When the select button is selected, a control devicemay receive information in which a drawing selected by a designer is determined.

Assistance device for steering device and method of assisting steering device design

A design assisting apparatus of a steering device arranges a coordinate of a handle position reference point, a coordinate of a first universal joint reference point, a coordinate of a second universal joint reference point, and a coordinate of a steering gear reference point in a three-dimensional space, calculates a reference axis passing through the second universal joint reference point from the first universal joint reference point, calculates a phase angle which is an angle between a straight line from the handle position reference point to the first joint reference point when viewed along the reference axis and a straight line from the second joint reference point to the steering gear reference point when viewed along the reference axis, and determines success or failure of a condition in which the allowable range of the phase angle allowable error is included in the allowable range of the allowable torque variation rate.

Steering device design assisting apparatus and steering device design assisting method

The invention provides a steering apparatus which includes: an inner column; an outer columnfitted with the inner columnin such a manner that it is movable in a telescopic manner; a steering shaftwhich is rotatably supported on the inner columnand outer column, and on the vehicle body rearward side of which a steering wheelcan be mounted; a lock apparatusincluding a lock pinA which can be operated by an actuator to thereby prevent the rotation of the steering shaft; and, a lock housingwhich is formed integrally with the outer columnand stores the lock apparatustherein.

Steering apparatus

When a columnreaches a tilting ascent end, the lower endof a nutabuts on the buffering segmentof a buffer. Thus, while the buffering segmentof the bufferis elastically deformed, the nutstops with no impact. Accordingly, the inertia when the nutstops is restrained and the tightening torque of the nutwhen the nutstops is also restrained. For this reason, when an electric motoris rotationally driven in a reverse direction, a feeding screw shaftrotates in the reverse direction with the normal rotation torque of the electric motor. Thus, the nutis caused to ascend in the axial direction along the screw segment of the feeding screw shaftso that the columncan be tiltingly moved downward.

Electric steering device

An electrically-driven steering column apparatus includes a steering column rotatably holding a steering shaft and capable of adjusting a position of the steering wheel, and a power transmission mechanism for transmitting to the steering column a rotational driving force of an electric motor as a position adjusting motion driving force, wherein the power transmission mechanism has a joint constructed of a spherical joint element and a cylindrical joint element in which the spherical joint element is slidably fitted, on within a driving force transmission route.

Electrically-driven steering column apparatus

In a tilt and/or telescopic type steering column apparatus for a vehicle, in which a column sided bracket attached to a steering column is so provided as to be swingable about a car body sided bracket attached to a car body, the two brackets are press-fitted to each other by fastening a fastening bolt inserted through the two brackets and thus fastened in a tilt and/or telescopic adjustment position, while a tilt and/or telescopic adjustment can be made by releasing the two brackets from being press-fitted by slackening the fastening bolt, a balance or leap-up spring for biasing a pair of biasing end portions each other is provided, the one biasing end portion of the balance or leap-up spring is fitted to the car body or the car body sided bracket, and the other biasing end portion supports sad steering column or the column sided bracket, an improvement is characterized in that a slide member abutting on the steering column or the column sided bracket is attached to the other biasing end portion of the balance or leap-up spring.

Tilt steering column device for vehicle

A spacer is interposed between a body-side bracket and a column-side bracket for retaining a steering column. A pin insertion hole through which a supporting pin is passed is formed in the spacer. A portion of the spacer to be broken by the shock of collision is formed in a region of the spacer surrounding the pin insertion hole.

Impact absorbing steering column device

In a manufacturing method of a steering column apparatus for a car in which a column-side bracket attached to a steering column is brought into pressure contact with a body-side bracket attached onto the body of the car to be retained, the body-side bracket or the column-side bracket is comprised of a plurality of divided components in advance, and these plurality of divided components are connected to each other by caulking at the time of assembling, so as to assemble the body-side bracket or the column-side bracket.

Steering column device for vehicle and method of manufacturing the device

An electric tilt and/or telescopic steering column apparatus comprises a steering shaft having a steering wheel mounted on a rear end thereof, a steering column for rotatably supporting the steering shaft, an electric actuator for adjusting the tilt and/or telescopic position of the steering shaft by driving this steering column, and position detecting means for detecting the position of the steering shaft in a non-contact manner.

Electric steering column apparatus

A shock absorbing type steering column assembly which is incorporated in the steering apparatus of an automobile, comprises one end portion of an outer column member formed with a female serration at one end thereof and one end portion of an inner column member formed with a male serration at one end thereof being in engagement with each other, one end portion of the outer column member being in pressure-fitting relationship to a center-side portion in the axial direction of the inner column member to form a first fitted portion, while one end portion of the inner column member is in pressure-fitting relationship to a center-side portion in the axial direction of the outer column member to form a second fitted portion, and pressure fitting strength at the first fitted portion being substantially equal to that at the second fitted portion.

Shock absorbing type steering column assembly

A double Cardan type constant velocity joint has a crank type angle adjusting member rotatably supported in a central portion of a support plate that is provided inwardly of an intermediate housing. First and second engagement protrusions provided at front end portions of first and second yokes engage in an oscillatable manner with first and second engagement holes formed in the angle adjusting member. The angle adjusting member does not displace in a diametrical direction even when rotated.

Double cardan type constant velocity joint

An energy absorbing member is constructed of a main body including a base and a belt portion having first and second folded portions and an interconnecting plate welded to the main body. A middle portion of the belt portion is confined between an upper surface of the base and a lower surface of the interconnecting plate. Thus, the energy absorbing member itself provides two surfaces for guiding the belt portion. Assembly of a shock absorbing steering column apparatus is thereby facilitated and a compact apparatus can be realized.

Energy absorbing member for shock absorbing steering column apparatus

A tilt type steering column device comprises a stationary bracket 7 having a protrusion 8 on one side thereof, a tilt lever 11 provided on the one side of the stationary bracket, a tilt bolt 9 extending through the stationary bracket 7, a rotating plate 6 provided between the stationary bracket 7 and the tilt lever 11 so as to rotate around the tilt bolt 9 and having stepped-portions on an outer periphery, and a biasing spring 5 engaged with the tilt lever 11 and the rotating plate 6 to bias the rotating plate 6, so that one of the stepped portions is engaged with the protrusion 8, thereby preventing the steering column from erroneously moving upon impact.

Growing community of inventors

Gunma-ken, Japan

Masaki Tomaru