Mitsuba Corporation

Honda Motor Co., Ltd.

Masaaki Kimura

Takeshi Kanai

Hiroto Tanaka

Tomohiko Annaka

Koji Tsuchiya

Naoki Kojima

Tamotsu Iwazaki

Junya Kitazawa

Toshiyuki Amagasa

Yukiyoshi Iso

Toshiyuki Kimura

Hiroji Okabe

Hachidai Watanabe

Takeshi Sasaki

Koji Okabe

Kazutada Sasaki

Yuki Takahashi

Keiichi Hosoi

Katsuyuki Suzuki

Hirokazu Shoda

Tomoya Nishikawa

Tsugio Yokoo

Toshikazu Terada

Shin Akimoto

Masafumi Takimoto

Hironori Ikeda

Yutaro Takahashi

Hayato Saito

Yoichi Yamazaki

A wiper device is provided. An operating range of each of two sets of wiper arm units can be properly restricted. A first wiper arm unit is prevented from colliding with a first front pillar or a dash panel when a first output shaft of a first speed reduction mechanism has rotated beyond a first control angle, and a second wiper arm unit is prevented from colliding with a second front pillar or the dash panel when a second output shaft of a second speed reduction mechanism has rotated beyond a second control angle.

Wiper device

Since a shape of a statoris made mirror symmetric with respect to a rotoras a 4-pole/6-slot type, rotational deflection of the rotorcan be suppressed. As the minimum number of poles and the minimum number of slots, which can suppress the rotational deflection of the rotor, a frequency of magnetic noises approaches a frequency of mechanical noises. Thus, it is possible to integrate the whole noises generated by the DR-side wiper motorinto a low frequency range thereof, and to make the acoustic sensitivity (dB) of a vehicle interior smaller. Since the statoris fixed inside a housingand mounting legs fixed to a vehicle body fixed portion are provided in the housing, the stator, which is a source of the magnetic noises, can be fixed to a vehicle via only the housing. Therefore, a brushless wiper motor with quietness improved further can be designed.

Brushless wiper motor

In a brush holder accommodating partof a gear housing, paired flat surface partsand paired curved partsare alternately disposed so as to be formed into an elliptical shape, one of the paired flat surface parts is formed with first heat sinks, and two brushesandmounted on a brush holder unitaccommodated in the brush holder accommodating partare disposed near the first heat sinks

Motor with speed reduction mechanism

In a brushless wiper motor, first and second pressing claws (and) are formed on an outer periphery (OP) of steel sheets () forming a stator core (), and press-fitted to an inner periphery (IP) of the motor housing unit () so that the stator core () is fixed to the motor housing unit (), base end portions of the first and second pressing claws (and) are respectively connected to first and second walls formed on the outer periphery (OP) of the steel sheets (), and tip end portions of the first and second pressing claws (and) each serves as a free end, and are directed in a circumferential direction of the stator core ().

A wiper motor has: a magnet disposed on the yoke and formed with at least four poles; an armature disposed on an inner side of the magnet; a speed reduction mechanism unit having an output shaft for transmitting the rotation of the armature shaft; a gear housing connected to the yoke; a gear housing cover covering an opening of the gear housing; a magnet attached to the output shaft of the speed reduction mechanism unit; an absolute position detecting sensor disposed so as to face the magnet; and a control board having the absolute position detecting sensor attached thereto, the control board being disposed between the gear housing and the gear housing cover, and configured to control the rotation of the armature shaft.

Wiper motor

The swing member () to be subjected to swinging drive is integrally provided to the output shaft () outside the speed reducer case (), the speed reducer case () is provided with a pair of swing regulating portions () which prevents the swing member () from being moved beyond the wiping-allowable limit angle (b&#xb0;) by contacting the swing member (). As a result, the swing member () and the swing regulating portions () can collectively form the regulating member (). As a result, essential components (such as fixing plate) can be omitted from the conventional wiper apparatus. Therefore, the wiper apparatus can be improved in assembly workability, size and weight by reducing the number of components thereof, and provided with a regulating member () which prevents the wiper member being moved beyond the wiping-allowable limit angle (b&#xb0;).

Wiper apparatus

A brushless motor comprises: a statorhaving armature coils, and; a rotorwhich is rotated by a revolving magnetic field; and a switching element, wherein the brushless motor has a rotation number control unitwhich switches between low-speed and high-speed mode, wherein in the low-speed mode, the rotation number control unitsupplies current to the armature coils, andat predetermined energization timing and controls a duty ratio to control the rotation number of the rotor, and in the high-speed mode, the rotation number control unitsupplies current to the armature coils, andat energization timing advanced from the energization timing for the low-speed mode, thereby performing field weakening control of weakening the revolving magnetic field from that of the low-speed mode to control the rotation number of the rotor

Brushless motor and wiper apparatus

An object of the present invention is to provide a wiper apparatus reduced in the number of parts. A wiper apparatusA has: a drive mechanismfor driving a wiperfor wiping a front windshield of a vehicle; a gear casein which the drive mechanismis housed, and which is fixed to a vehicle body, wherein the wiper apparatusA has: a fixing partprovided in the gear caseand fixed to the vehicle body; and a fixing partprovided in the gear caseand fixed to the vehicle body at a position different from a fixed position of the fixing partin a longitudinal direction of the vehicle body.

A rotating electric machine includes a shaft and an armature with a core that includes a shaft hole. The core includes a plurality of core materials that are laminated. When pressing in and fixing the shaft to the shaft hole, the shaft hole is applied with an ironing process in advance in order to rectify a cylindrical hole shape of the shaft hole.

Armature of rotating electric machine and method of manufacturing the same

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Gunma, Japan

Masaaki Kimura