Asmo Co., Ltd.

Denso Corporation

Mazda Co., Ltd.

Masaya Horikawa

Hideyuki Yagi

Itaru Soga

Toshio Yamamoto

Masaaki Shimizu

Kozo Odoi

Keita Kawai

Seiichi Omoto

Tatsuo Maeda

Kazumitsu Moriya

Sigeki Okabe

Yoshiaki Doushita

A pressure angle of the worm is set to be greater than a pressure angle of the worm wheel so that a maximum number of meshing teeth becomes smaller than or equal to n (where n is a natural number) with respect to the speed reduction mechanism in which a number of meshing teeth is always n+1 or changed between n+1 and n by rotation under a condition in which the pressure angles of the worm and the worm wheel are the same with respect to each other.

Speed reduction mechanism, motor with speed reduction mechanism, and method for producing speed reduction mechanism

A motor is provided that includes magnetic poles, an armature core, armature coils, a commutator, and power supply brushes. The armature core includes teeth arranged in the circumferential direction to extend in a radial pattern. The armature coils include inner layer coils and outer layer coils. Each of the inner layer coils is wound around radially proximal end portions of two circumferentially adjacent teeth or a radially proximal end portion of one of the teeth. The inner layer coils are arranged in the circumferential direction without overlapping each other in the radial direction. Each of the outer layer coils is wound around radially distal end portions of two circumferentially adjacent teeth by distributed winding. The outer layer coils are arranged radially outward of the inner layer coils and are arranged in the circumferential direction without overlapping each other in the radial direction. The circumferential center of the inner layer coils and the circumferential center of the outer layer coils are displaced in the circumferential direction.

Direct-current motor with improved branched tooth arrangement

A drive device for opening and closing a vehicle top includes a pair of control devices each fixed in the side of the vehicle body, a falling pillar swingably supporting the vehicle top on the vehicle body and a pair of extendable link mechanisms that include link rods which are inclinable and which couple a swinging arm of the respective control device with the falling pillar. Each of the control devices includes a housing in which is rotatably positioned at least a portion of an output shaft for rotating the swinging arm, a driving device attached to the housing and generating a rotary driving force, a first reduction gear stage formed as a worm drive which is coupled with the driving device and which is housed in the housing, and a second reduction gear stage formed as a spur gear drive which is coupled with the worm drive for driving the output shaft and which is housed in the housing. A clutch disk is positioned on a gear shaft of a transmission gear in an axially movable manner and the clutch disk is substantially rotationally fixedly positioned on the gear shaft. The transmission gear forms a part of the spur gear drive. The clutch disk includes a connecting arrangement located in a side thereof for generating a claw clutch engagement with a connecting arrangement formed in a side of the transmission gear. A transferring device transfers movement of the transferring device to the clutch disk along the gear shaft in order to engage and disengage the claw clutch engagement.

Drive equipment for opening and closing of a vehicle top

Growing community of inventors

Hamamatsu, Japan

Masaya Horikawa