Mitsui Kinzoku Kogyo Kabushiki Kaisha

Mitsui Minings & Melting Co., Ltd.

Tokyo Electron Limited

Tokyo Electron Yamanashi Limited

Igarashi Electric Works Ltd.

Mitsu Kinzoku Act Corporation

Kazuhito Yokomori

Hiroshi Satoh

Takuya Imai

Shoji Wakatsuki

Hiroshi Ishigaki

Hiroshi Sato

Masashi Shimizu

Hisashi Nakajima

Hirofumi Watanabe

Yoshihisa Watanabe

Jiro Inoue

Tetsuro Mizuki

Manabu Nakajima

Takuya Kakumae

Yusuke Mizukoshi

Naoto Sesita

Katuyuki Tanaka

Hiroyuki Kurihara

Noboru Tozawa

Nobuo Sugawara

In a door opening/closing device having a motor base and a sensor case, a rotation sensor is provided. The rotation sensor includes a magnetic member provided adjacent an end of a rotation shaft and a detecting element that is arranged so as to detect a magnetic flux that is generated from the magnetic member in a direction crossing a magnetic flux that is generated from an electromagnetic clutch arranged around the rotation shaft. The motor base is attached to the sensor case such that the end of the rotation shaft extends outside of the motor base and the rotation sensor is arranged adjacent the end of the rotation shaft.

Door opening/closing device

Under a method to control a sliding speed in accordance with this invention, the motor is initially accelerated for a predetermined reference speed, and then during the initial acceleration period, if a rotational speed of the wire drum is of and above a given value, a difference between a rotational speed of the wire drum and a rotational speed of the motor is of and above a given value, and a rate of acceleration of the wire drum is of and above a given value, the rotational speed of the motor is reduced temporarily judging the slide door is in a state of abnormal acceleration, and then the motor is accelerated again at a lower rate than the initial acceleration toward the reference speed.

Power slide device for controlling sliding speed of vehicle sliding door

A clutch mechanism of the present power device comprises a fixed gear member, a moving gear member engaged with the fixed gear member when moving to a clutch connecting position, an armature for moving the moving gear member to the clutch connecting position when rotated relatively to the moving gear member, an electromagnetic coil unit for applying a brake resistance to the armature, and a clutch holding surface for abutting against the moving gear member when the electromagnetic coil unit is turned off in the clutch connecting state and for holding the moving gear member at a brake-clutch connecting position. The abutment of the moving gear member against the clutch holding surface is released by rotating the moving gear member relatively to the armature in a state in which the electromagnetic coil unit is operated.

Clutch mechanism for power device

A wire winding apparatus winds one side of wire and simultaneously releases other side of wire by driving a winding actuator. A drive gear is disposed to rotate in an arbitrary direction when the winding actuator is driven. A pair of wire drums is disposed on both sides of the drive gear, respectively, and separately winds the one side of wire and the other side of wire in opposite directions. A rotation of the drive gear is transmitted to each of the wire drums.

Wire winding apparatus

A powered sliding device includes a wire drum () connected to a vehicle sliding door () through wire cables (), a motor () for rotating the wire drum, a clutch mechanism () provided between the motor and the wire drum, a rotational member () rotated integrally with the wire drum, detection apparatus () for detecting the rotation of the rotational member, and a housing (). The housing includes a first space () accommodating the wire drum and communicating with the outside of the housing through the wire cables and a second space accommodating the rotational member and the detection apparatus, and a housing body () provided between the first space and the second space which separates the first space and the second space.

Powered device for vehicle sliding door

A housing, a sun gear rotatably supported in the housing, a ring gear rotatably supported coaxially with the sun gear, a planetary carrier rotatably supported coaxially with the sun gear, a plurality of planetary gears rotatably supported to the planetary carrier and meshing with the sun gear and the ring gear, a motor connected to the ring gear to rotate the ring gear, an electromagnetic brake capable of applying a braking force to rotation of the sun gear, and an actuating member connected to the planetary carrier and linked to a door of a vehicle, and capable of moving the door in opening and closing directions are provided.

Driving apparatus for vehicle door

A powered sliding device comprises wire cables () provided between a sliding door () and a vehicle body (), and a power unit () for sliding the sliding door when the wire cables are moved by the power of a motor. The power unit is provided in the inner space of the sliding door. The wire cables are composed of the door-opening cable () and the door-closing cable () connected to the power unit at a base end side, respectively. A front end of the door-opening cable is fixed to the vicinity of the rear end of a lower rail () after having passed through a lower roller bracket () of the sliding door, and the front end of the door-closing cable is fixed to the vicinity of the front end of a center rail () after having passed though a center roller bracket () of the sliding door.

Power sliding device of vehicle sliding door

A motor for driving a movable body includes a cylinder portion that holds a field magnet, a coil holder disposed rotatably to the cylinder portion, a conducting coil wound on the coil holder and generates a rotational force between the same and the cylinder portion when a current flows in the conducting coil, a brake coil provided on the coil holder, where an electromotive force for generating magnetic field that suppresses relative rotation between the coil holder and the cylinder portion is induced between both ends of brake coil when a current flows in the conducting coil, and a switch interposed between the both ends of the brake coil.

Motor with rotation suppression mechanism for movable body

Method for controlling sliding speed of vehicle slide door

A clutch mechanism of the power device includes a movable gear member which is rotated integrally with a wheel and engaged with a stationary gear member when moved in a first direction and disengaged from the stationary gear member when moved in a second direction opposite to the first direction, an armature which moves the movable gear member in the first direction when rotated relatively to the movable gear member, and an electromagnetic coil for applying brake resistance to the armature by attracting the armature by magnetic force to restrict a co-rotating state of the armature and the movable gear member. The armature has a clutch holding surface for maintaining a clutch-engaged state where the movable gear member and the stationary gear member are engaged with each other even when the electromagnetic coil is turned off in the clutch-engaged state.

Power device for opening and closing a vehicle sliding door

This slide device comprises a first tension member connected to a distal end of an opening cable, a second tension member connected to a distal end of a closing cable, a lower roller bracket rotatable mounted on a sliding door, a first pin disposed at a front portion of a lower roller bracket, and a second pin disposed at a rear portion of the lower roller bracket. The front of the first tension member is rotatably connected to the first pin and the rear of the second tension member is rotatably connected to the second pin. The first tension member and the second tension member overlap with each other.

Power slide device for vehicle sliding door

A motor comprises a rotor fixed to a shaft and a stator comprising a permanent magnet on the inner circumferential surface of a motor casing. The shaft extends from the opening end of the motor casing and has a worm wheel in a gear casing. The end face of the gear casing has an annular projection. The motor casing has an outward flange at the opening end. When the motor casing is connected with the gear casing, an elastic O-ring is fitted between a space formed by the outer circumferential surface of the annular projection, an outer vertical seat face of the gear casing and a corner of the outward flange thereby achieving suitable alignment of the motor casing with the gear casing. The permanent magnet is made of Nd magnet which is pressingly fitted on the inner circumferential surface of the motor casing.

Electric actuator and motor used therein

An initial tension device has a wire cable for connecting a drive unit and a movable member, a tension case fixed to an immovable member, a regular retainer engageable with an outer cable of the wire cable, and a slot formed in the tension case to extend in the longitudinal direction of the wire cable. The regular retainer engaged with the outer cable moves together with the outer cable by the tension applied to the wire cable through the length defined by the slot. The regular retainer is engaged with the outer cable in the state where a maximum tension is applied to the wire cable.

Tension device for producing an initial tension on a wire cable

In the present control method of a powered sliding device, a sliding movement of the sliding door in the closing direction by an external force is monitored after the sliding door is slid in the opening direction by the motive power of the motor to reach the opening end position and the sliding movement by the motor is terminated. A brake is applied to the sliding door for a predetermined time when the sliding movement of the sliding door in the closing direction at a speed higher than a predetermined speed is detected within a predetermined time. After that, the brake is applied to the sliding door again for a predetermined time when the sliding movement of the sliding door in the closing direction at a speed higher than a predetermined speed is detected again within a predetermined time.

Growing community of inventors

Yamanashi-ken, Japan

Kazuhito Yokomori