Honda Motor Co., Ltd.

Kotaro Yamaguchi

Hajime Kajiwara

Takehiko Hakui

Masanori Watanabe

Atsushi Yuta

Yutaka Horiuchi

Koichi Suyama

Yasuhiro Terada

Left and right actuators () for a vehicle are provided that include a first housing () and a second housing () connected in a direction of an axis (L), a coupling flange () of the first housing () and a coupling flange () of the second housing () being connected by a plurality of bolts () disposed at equal intervals on a circumference having the axis (L) as the center, and since a component mounting part via which a stroke sensor () is mounted on the second housing () is provided at an intermediate position between two bolts () of the plurality of bolts () or at a position of any one bolt (), the stroke sensors () of the left and right actuators () can be disposed at positions that are mirror-symmetric relative to a central plane (P) of a vehicle body while reducing the number of components by using in common for each of the left and right actuators () the second housing () on which the stroke sensor () is mounted.

Actuator for vehicle

A telescopic actuator includes a motor having a rotation shaft, a reduction gear which decelerates an output rotation of the rotation shaft, a feed screw mechanism having a male screw member and a female screw member which are relatively rotated by an output rotation of the reduction gear, a first housing accommodating the motor, and a second housing accommodating the reduction gear and the feed screw mechanism. The first housing and the second housing are detachably attached.

Telescopic actuator

A ring gear of a planetary reduction gear is screwed into an inner peripheral surface of a first housing through an opening thereof, while the thrust-receiving flange of a screw feed mechanism is held by the locknut screwed into an inner peripheral surface of a second housing through an opening thereof. In addition, the locknut and the ring gear face each other in an axial direction with a slight gap provided therebetween when the openings, respectively, of the first and second housings are connected to each other in the axial direction. Accordingly, even if the threaded connection of any one component of the locknut and the ring gear is loosened, the one component is prevented from moving by the other component.

A feed screw mechanism includes internally threaded member fixed within an output rod. The internally threaded member is threadedly engaged with an externally threaded member connected at axially one end in the direction of an axis thereof to a drive source, so that the output rod is moved in a direction of the axis relative to the externally threaded member by the relative rotation of the externally threaded member and the internally threaded member. The internally threaded member is coupled to the output rod at the axially other end in the direction of the axis by a threadedly coupling portion. Therefore, when pulling loads in directions away from each other are applied to the output rod and the externally threaded member, a compression load can be prevented from being applied from the output rod to the internally threaded member.

Feed screw mechanism

A telescopic actuator includes a motor, an input flange rotated by the motor, a male screw member coupled to the input flange, a female screw member threadedly engaged with the male screw member, an output rod coupled to the female screw member, the output rod being moved in an axial direction thereof to output a thrust force when the input flange is rotated, and a housing inside which the male screw member and the female screw member are accommodated. The input flange is supported by the housing such that a relative movement of the input flange with respect to the housing is allowed in a radial direction but restricted in the axial direction.

A telescopic actuator includes a housing, an output rod which is slidable in an axial direction with respect to the housing, at least two slide bearings via which the output rod is supported by the housing, and a stopper disposed between the two slide bearings. The stopper regulates a moving end position of the output rod.

A telescopic actuator is adapted to be used on a right side or a left side of a body. The telescopic actuator includes a housing having a cylindrical shape and formed with an opening portion, an output rod supported inside the housing so as to be protrudable and retractable with respect to the housing, and a stroke sensor comprising a detectable portion provided on the output rod so as to be movable inside the opening portion of the housing and a detecting portion provided on the housing so as to face the detectable portion. A direction in which the detectable portion is eccentrically disposed with respect to a vertical plane including an axial line of the output rod is different depending on whether the telescopic actuator is used on the right side or on the left side of the body.

Growing community of inventors

Wako, Japan

Kotaro Yamaguchi