Tochigi Fuji Sangyo Kabushiki Kaisha

Other

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Ikeya Forumla Co., Ltd.

Tochigifuji Kabushiki Kaisha

Tochi Fuji Sangyo Kabushiki

Masao Teraoka

Nobushi Yamazaki

Sakuo Kurihara

Kenji Hiraishi

Satoshi Aiba

Osamu Ishikawa

Shuhei Ono

Isao Hirota

Shinji Ikeya

Yasuhiko Ishikawa

Yukio Yuhashi

Masashi Aikawa

Masaaki Fusegi

Noriyuki Sudou

Masayuki Nagai

Naoshi Mogami

Makoto Hagiwara

Susumu Ishikawa

Tetsushi Tomita

Mitsuru Hasegawa

Kazumitsu Ugajin

Hiroyuki Tanaka

Toshio Kobayashi

Tadahiko Kato

Akihiro Iwazaki

Tatsuhiro Tomari

Masayuki Sayama

Yutaka Tashiro

Masao Tateno

Tomiaki Ochiai

Atsushi Ikezawa

Hideo Ikeda

Koji Matsubara

Kunio Katada

Takao Tashiro

Kouichi Iizuka

Junzo Ishimaru

Norio Yano

Takayuki Wakaizumi

John J Schoeberle

Hiraishi Kenji

Kazushige Nakane

Toshiaki Kuroiwa

Mitsuo Kawarai

Takashi Ushijima

Toshio Kanayama

Hiromu Minamitani

Takeharu Saeki

Yoshihiro Yamauchi

Yoshiaki Kato

Giichirou Takahashi

Masatoshi Noguchi

A meshing clutch comprises a rotor with a first meshing clutch, a sleeve with a second meshing clutch and a first cam being supported by a clutch hub and urged so as to release meshing, a cam ring configured to convert movement in a rotational direction into movement in an axial direction to lock the meshing according to cooperation of the first and the second cams, and a cam actuator, a sun gear that receives rotation input, an internal gear meshing with the sun gear through a planet pinion, a planet carrier being provided with a drive pinion for output, a fiction clutch mechanism to adjust connection between the internal gear and the planet carrier according to fastening, and a clutch actuator performing fastening control of the friction clutch mechanism.

Meshing clutch mechanism and two-speed transmission

A sleeve in the shift control device includes a sleeve main body and a first convex section. The first convex section is annular in shape and protruded radially outward from the outer circumferential surface of the sleeve main body. The shift fork includes a fork main body, a second convex section, a ring, and a joining member. The fork main body is annular in shape and disposed radially outside the sleeve main body. The second convex section is annular in shape, axially disposed side by side with the first convex section, and protruded radially inward from the inner circumferential surface of the fork main body. The first convex section is axially sandwiched between the ring and the second convex section. The joining member is disposed in a space that is formed by a first groove formed in the ring and a second groove formed in the fork main body.

Shift control device

The present invention is capable of suppressing gear shift shocks or delays in acceleration with no interruption of driving force and reducing the weight. Disclosed is a transmission which is provided with multiple stage shift gears so arranged to shift a number of dog clutches to shift a gear to the upper stage of the multiple stage shift gears, and is characterized in that a guide part is provided to a shift operation section and the dog clutches on each of the sages so as to move the lower dog clutch in a neutral direction by a coasting torque acting on the lower stage by a shift rotation of the upper stage to release a meshing engagement when meshing engagements of the lower and upper dog clutches are simultaneously performed by an operation of the shift operation section.

Transmission and shift control system

The present invention is capable of suppressing gear shift shocks or delays in acceleration with no interruption of driving force and reducing the weight. Disclosed is a transmission which is provided, with multiple stage shift gears so arranged to shift a number of dog clutches to shift a gear to the upper stage of the multiple stage shift gears, and is characterized in that a guide part is provided to a shift operation section and the dog clutches on each of the sages so as to move the lower dog clutch in a neutral direction by a coasting torque acting on the lower stage by a shift rotation of the upper stage to release a meshing engagement when meshing engagements of the lower and upper dog clutches are simultaneously performed by an operation of the shift operation section.

An apparatus for controlling the driving force of a vehicle is capable of using brakes to limit a differential operation, securing sufficient torque, and suppressing the heating and wearing of the brakes. In the vehicle, an engine generates torque to drive front wheels and/or rear wheels. A front differential allows differential rotation between the front wheels and transmits torque of the engine to the front wheels. A rear differential allows differential rotation between the rear wheels and transmits torque of the engine to the rear wheels. Disk brakes separately brake the front and rear wheels. An ABS/attitude electric control unit controls the disk brakes to limit differential rotation between the front wheels or between the rear wheels. At least one of the front and rear differentials is provided with a differential limiting mechanism.

Apparatus for controlling driving force of vehicle

The torque transmission apparatus is simple, small and light and has a clutch unit to receive thrust and transmit torque between rotary members, a differential screw mechanism to convert rotational force into the thrust applied to the clutch unit, and an electric motor to produce the rotational force. The differential screw mechanism has a driving screw and driven screws. The driving screw is rotatably and axially movably supported on a rotary drive shaft of the electric motor. The driven screws mesh with the driving screw and are rotatably and axially immovably supported. The meshing driving screw and driven screws are rotated to axially move the driving screw and apply engaging force to the clutch unit.

Torque transmission apparatus

A torque transmission coupling includes a rotating shaft and a drive pinion shaft for carrying out input and output transmission of a torque. A torque control part is arranged between the rotating shaft and the drive pinion shaft for controlling torque transmission between the rotating shaft and the drive pinion shaft on the basis of a frictional engagement caused by an electromagnetic force of an electromagnet. At least a portion of the torque control part is arranged in an outer periphery of a taper roller bearing rotatably supporting the drive pinion shaft, thereby allowing a shortening of an entire length of the torque transmission coupling.

Torque transmission apparatus and case structure

A rotatively driving apparatus includes: a differential rotation amplification mechanism for amplifying differential rotation between a rotating shaft and a drive pinion shaft which are relatively rotatable; a rotor interlockingly rotatable with a amplified differential rotation amplified; and a rotation controlling mechanism for controlling the rotation of the rotor. The rotation controlling mechanism includes a stator for constituting an electric motor together with the rotor, a variable resistor for absorbing electric energy generated by the electric motor by the rotation of the rotor, and a controller for controlling torque transmitted between the rotating shaft and the drive pinion shaft by adjusting the energy absorbed by the variable resistor. The differential rotation amplification mechanism and the rotor are disposed on an identical axis.

Rotatively driving apparatus

The invention can reduce a number of parts, make an assembly and a part management easy and make a setting of an interval in an axial direction easy. A coupling apparatus is constructed by a lock ring which is rotationally engaged with a side gear corresponding to one of a differential case and a side gear capable of relatively rotating with each other by a coupling portion, is movable in an axial direction and has engagement teeth capable of engaging and interrupting with engagement teeth of the differential case on the basis of the axial movement, and an electromagnet which executes a movement in an axial direction of the lock ring on the basis of a line of magnetic force passing through the engagement teeth.

Coupling apparatus

A differential unit which can be arranged in compact as a whole, while a differential limit and a differential lock are appropriately executed. The differential unit is provided with a differential mechanism transmitting from a differential case () to a pair of axle shafts a rotational force while allowing a differential rotation, and is provided with a differential limiting mechanism () which can limit the differential rotation, and a differential lock mechanism () which can lock up the differential rotation. The differential limiting mechanism () is provided with a limiting actuator () for operation, the differential lock mechanism () is provided with a lock actuator () for operation, and the limiting actuator () and the lock actuator () are independently arranged in both sides of the differential case ().

Differential unit

A reduction-drive device has a first and a second reduction mechanism and distribution device. The first reduction mechanism has a planetary carrier, a planetary gear rotatably supported by the planetary carrier, an internal gear in mesh with the planetary gear and a sun gear. The first reduction mechanism is supported by the housing so as to reduce driving force of the electric motor. The second reduction mechanism is positioned between the electric motor and the first reduction mechanism so as to reduce an output of the first reduction mechanism. The differential device is supported by the housing so as to distribute the output of the second reduction mechanism to a wheel side.

Reduction-drive device

In order to form a torque transmission coupling to be compact, the present invention provides a torque transmission coupling () comprising input-output rotary members () rotatably supported to perform input-output transmission of torque; a frictional engagement section () provided between the input-output rotary members to perform torque transmission between the input-output rotary members by enforcing frictional engagement; a compression member set () that comprises a pair of members ()capable of performing relative rotation and that generates thrust through the relative rotation between the members to thereby cause the frictional engagement section to perform the frictional engagement; and a rotary actuator () that causes both of the members of the compression member set to perform engagement-rotational driving whereby to cause the relative rotation.

Torque transmission coupling

In order to make it possible to shorten an entire length, a torque transmission coupling is provided with a rotating shaft () and a drive pinion shaft () for carrying out input and output transmission of a torque, and a torque control means () arranged between the rotating shaft () and the drive pinion shaft () and controlling a torque transmission between the rotating shaft () and the drive pinion shaft () on the basis of a frictional engagement caused by an electromagnetic force of an electromagnet (), and at least a part of the torque control means () is arranged in an outer periphery of a taper roller bearing () rotatably supporting the drive pinion shaft ().

In a clutch unit, an engagement of a dog clutch can be restricted until a revolution of an input shaft and the revolution of an output shaft correspond to each other so as to be suitable for the engagement. The engagement can be effected when the revolution of the input shaft and the revolution of the output shaft have corresponded so as to be suitable for the engagement. Accordingly, the revolution of the input shaft and the revolution of the output shaft are speedily synchronized, and engagement shocks of the dog clutch can be accurately suppressed. Hence, it is possible to reliably transmit the torque to be transmitted from the driving source to the wheel side through the reduction mechanism.

Clutch unit

An actuatoris disclosed including a stationary member, a rotational memberdisposed for rotating capability with respect to the stationary member, a movable memberdisposed for movements with respect to the rotational member, a drive power sourcerotating the rotational member, and a converting mechanism disposed between the rotational memberand the movable memberto convert rotation of the rotational member to an operating force for an operative unit.

Actuator

Growing community of inventors

Tochigi, Japan

Masao Teraoka