Abstract: A control apparatus for a motive power transmission device equipped with a first input shaft, a second input shaft to which a motive power from a motor is input, a rear wheel-side output shaft from which a motive power is output to a first driving wheel, a front wheel-side output shaft from which a motive power is output to a second driving wheel, and a planetary gear device that has, as three rotating elements, a sun gear to which the second input shaft is coupled, a carrier to which the front wheel-side output shaft is coupled, and a ring gear to which the first input shaft and the rear wheel-side output shaft are coupled engages an engagement device when a torque of the rear wheel-side output shaft is equal to or smaller than a threshold with the motor outputting the motive power.

Abstract: An electric actuator including: an electric motor capable of rotating forward and backward; and a motion conversion mechanism configured to convert rotation of the electric motor into reciprocating linear motion of a screw shaft. The motion conversion mechanism including: a nut configured to be rotationally driven by the electric motor; and the screw shaft capable of being threadedly inserted through the nut. A lubricant holding portion having an outer diameter larger than a diameter of a screw hole of the nut and being capable of housing lubricant is formed on an inner periphery of an end of the nut in an axial direction. A lid member configured to cover an opening end of the lubricant holding portion in an axial direction is provided. Thus, an electric actuator can prevent wear at a threaded engagement portion between a nut and a screw shaft by sufficiently lubricating the threaded engagement portion.

Abstract: An electric actuator includes an electric motor, a nut, and a screw shaft threadedly inserted through the nut so as to be able to advance and retreat. The threads of the screw shaft include two flanks and a crest portion connecting the two flanks to each other. Grease is used as a lubricant. A groove portion, which is cut out from the crest portion toward a root portion side of the threads and holds grease, is formed on the threads of the screw shaft. Further, a tapered surface is formed at a groove portion side end of at least one of the two flanks, and the tapered surface inclines in a direction away from the groove portion and drags the grease held in the groove portion onto a threadedly engaged portion with the aid of the wedge effect. As a result, the electric actuator can promote lubrication.

Abstract: An electric actuator includes a forwardly and reversely rotatable electric motor, a motion conversion mechanism configured to convert rotation of the electric motor into reciprocating linear motion of a screw shaft, an actuator case containing the electric motor and the motion conversion mechanism, and a boot covering a portion of the screw shaft that extends out of the actuator case. A vent is formed on the actuator case. The vent is configured to ventilate a sealingly closed space in the actuator case and the boot. A breathable waterproof member is provided on the vent and a cover member is also provided on the vent. The breathable waterproof member is configured to block entry and exit of water while permitting entry and exit of air. The cover member is configured to cover the vent so as to allow ventilation with outer air.

Abstract: In an electric parking brake device configured in such a way that a parking brake state resulting from pulling of a brake cable is released by loosening the brake cable, the brake cable is formed by twisting together a plurality of wires and the direction of twisting is rotational direction of the nut when the brake cable is pulled. This makes it possible to reduce an operating sound and to reduce wear of members constituting a rotation restricting device.

Abstract: Provided is an electric parking brake device in which an actuator case of an electric actuator is mounted to a backplate of a drum brake which includes a parking brake lever, with which electric actuator it is possible to obtain a parking brake state by pulling a brake cable linked with the parking brake lever. The backplate is formed with a through-hole for passing the brake cable and has a connecting tube portion integrally protruding therefrom and enclosing the through-hole. A mounting tube includes, on one end in an axial direction, a joint portion which is formed separately from the backplate and joined to the connecting tube portion. The actuator case is mounted to the mounting tube at certain axial and circumferential positions with respect to the mounting tube. This allows increased freedom of the mounting attitude of the electric actuator with respect to the backplate without increased cost.

Abstract: An electric actuator includes an electric motor, a nut (a first screw member), and a screw shaft (a second screw member) threadedly inserted through the nut to be able to advance and retreat. Each of threads of the screw shaft includes two flanks and a crest portion connecting the flanks to each other. Grease is used as a lubricant. A groove portion, which is cut out from the crest portion toward a root portion side, is formed on each of the threads of the screw shaft. Further, a taper surface, which flares becoming circumferentially farther away from the groove portion, is formed on at least a part of each of peripheral edges of each groove portion on flank sides. The electric actuator can promote lubrication of a threadedly engaged portion between the first and second screw members, thereby improving motion conversion efficiency and reducing wear on the threadedly engaged portion.

Abstract: An electric actuator including: an electric motor capable of rotating forward and backward; and a motion conversion mechanism configured to convert rotation of the electric motor into reciprocating linear motion of a screw shaft. The motion conversion mechanism including: a nut configured to be rotationally driven by the electric motor; and the screw shaft capable of being threadedly inserted through the nut. A lubricant holding portion having an outer diameter larger than a diameter of a screw hole of the nut and being capable of housing lubricant is formed on an inner periphery of an end of the nut in an axial direction. A lid member configured to cover an opening end of the lubricant holding portion in an axial direction is provided. Thus, an electric actuator can prevent wear at a threaded engagement portion between a nut and a screw shaft by sufficiently lubricating the threaded engagement portion.

Abstract: In an electric parking brake device configured in such a way that a parking brake state resulting from pulling of a brake cable is released by loosening the brake cable, the brake cable is formed by twisting together a plurality of wires in such a way as to generate a twisting force in a fixed direction when pulled, and the direction in which the twisting force generated by the brake cable in a pulled state acts on a screw shaft is set to be the same direction as the direction in which a nut is rotated to loosen the brake cable. This makes it possible to reduce an operating sound and to reduce wear of members constituting a rotation restricting device.

Abstract: Provided is an electric parking brake device which enables a service brake that generates a brake force in accordance with an operation input of a vehicle user and a parking brake that generates a brake force with the function of an electric actuator having operation controlled by a control unit to be obtained. The control unit (C) starts to count in response to an end of detection of the service brake by service brake detection means (66) and stops operation of the control unit (C) after an elapse of a first predetermined time from the start of the count. With this configuration, the load on a battery can be reduced by preventing the control unit from being kept activated for a period of time that is longer than necessary.

Abstract: An electric parking brake device for a vehicle, including: a drum brake arranged on a radially inner side of a rim portion; and an electric actuator which enables obtaining a parking brake state by driving the drum brake, the electric actuator being mounted to a side surface of a back plate on an inner side in a vehicle-width direction. An ice and snow accumulation suppressing member (54) including a wall portion (54a), which extends from the back plate to the inner side in the vehicle-width direction while facing an inner peripheral surface of the rim portion (40b) and which is arranged at least below an anchor portion (21), is mounted to an outer peripheral edge portion of the back plate (13). With this configuration, collision of ice and snow refrozen in a wheel with the electric actuator can be prevented.

Abstract: In an electric parking brake device in which a parking brake state is released by loosening a brake cable: a nut is screwed onto a screw shaft in such a way as to be capable of moving in an axial direction; a movement restricting portion which is caused to abut the screw shaft or a linked member that moves in the axial direction together with the screw shaft, thereby restricting an axial direction movement end of the screw shaft to the side loosening the brake cable, is disposed in a fixed position inside an actuator case; and a resilient member which is compressed in response to axial direction movement of the nut after movement restriction has been effected by the movement restricting portion when the screw shaft moves in the axial direction toward the side loosening the brake cable is interposed between the nut and an insertion member.

Abstract: A vehicle includes a roof molding made of an elastic member disposed in a groove on a roof top surface formed in a coupling portion coupling a roof panel and a right side panel. The roof molding includes a lid portion covering an upper side of an opening portion of the groove. The roof panel includes a slope face descending toward the groove between a base face and the groove. An end of the lid portion of the roof molding extends to the slope face and is in contact with the slope face.

Abstract: In an electric parking brake device configured in such a way that a parking brake state resulting from pulling of a brake cable is released by loosening the brake cable, the brake cable is formed by twisting together a plurality of wires in such a way as to generate a twisting force in a fixed direction when pulled, and the direction in which the twisting force generated by the brake cable in a pulled state acts on a screw shaft is set to be the same direction as the direction in which a nut is rotated to loosen the brake cable. This makes it possible to reduce an operating sound and to reduce wear of members constituting a rotation restricting device.

Abstract: In an electric parking brake device in which a parking brake state is released by loosening a brake cable: a nut is screwed onto a screw shaft in such a way as to be capable of moving in an axial direction; a movement restricting portion which is caused to abut the screw shaft or a linked member that moves in the axial direction together with the screw shaft, thereby restricting an axial direction movement end of the screw shaft to the side loosening the brake cable, is disposed in a fixed position inside an actuator case; and a resilient member which is compressed in response to axial direction movement of the nut after movement restriction has been effected by the movement restricting portion when the screw shaft moves in the axial direction toward the side loosening the brake cable is interposed between the nut and an insertion member.

Abstract: Provided is an electric parking brake device in which an actuator case of an electric actuator is mounted to a backplate of a drum brake which includes a parking brake lever, with which electric actuator it is possible to obtain a parking brake state by pulling a brake cable linked with the parking brake lever. The backplate is formed with a through-hole for passing the brake cable and has a connecting tube portion integrally protruding therefrom and enclosing the through-hole. A mounting tube includes, on one end in an axial direction, a joint portion which is formed separately from the backplate and joined to the connecting tube portion. The actuator case is mounted to the mounting tube at certain axial and circumferential positions with respect to the mounting tube. This allows increased freedom of the mounting attitude of the electric actuator with respect to the backplate without increased cost.

Abstract: A vehicle includes a roof molding made of an elastic member disposed in a groove on a roof top surface formed in a coupling portion coupling a roof panel and a right side panel. The roof molding includes a lid portion covering an upper side of an opening portion of the groove. The roof panel includes a slope face descending toward the groove between a base face and the groove. An end of the lid portion of the roof molding extends to the slope face and is in contact with the slope face.

Abstract: One embodiment provides a vehicle brake apparatus, including: an electric actuator; and a drum brake. The drum brake is attached to a wheel so as to be driven by power exhibited by the electric actuator. In a state of being mounted on a vehicle, the electric actuator is disposed and fixed further rearwards than an axle of the wheel.

Abstract: A connecting structure includes: a molding having a fixed portion that is fixed on an inner surface of a lower edge of a windshield glass, and a fitting portion that receives an engagement rib that protrudes downward from a location near an upper edge of a cowl louver, wherein the engagement rib and the fitting portion include slip-out prevention projections that prevent the engagement rib from slipping out. On both sides of the engagement rib are provided elastic lips and that are supported by the fitting portion, and these elastic lips extend in the extending direction of the engagement rib and press on the engagement rib at a side closer to a tip of the engagement rib than the slip-out prevention projections, these elastic lips press each other in opposite directions.

Abstract: A connecting structure includes: a molding having a fixed portion that is fixed on an inner surface of a lower edge of a windshield glass, and a fitting portion that receives an engagement rib that protrudes downward from a location near an upper edge of a cowl louver, wherein the engagement rib and the fitting portion include slip-out prevention projections that prevent the engagement rib from slipping out. On both sides of the engagement rib are provided elastic lips and that are supported by the fitting portion, and these elastic lips extend in the extending direction of the engagement rib and press on the engagement rib at a side closer to a tip of the engagement rib than the slip-out prevention projections, these elastic lips press each other in opposite directions.