Abstract: An elevator control device controls an elevator including a cage that a person and a robot get on, and the elevator control device includes: a storage that stores a rated weight of the cage; and a controller that sets a set maximum weight that is set during operation of the elevator as a maximum value of a weight loaded on the cage, wherein when the controller determines that the robot is waiting to get on the cage while the set maximum weight is set at the rated weight, the controller sets, as the set maximum weight, a limit maximum weight that is a weight less than or equal to a value obtained by subtracting a weight of the robot from the rated weight.

Abstract: Provided is a self-propelled vacuum cleaner including: a main body including a pair of wheels on left and right sides, main body moving on a floor surface to clean the floor surface; a drive unit that moves or turns the main body; a step detector (a collision sensor, an obstacle sensor, a ranging sensor, and a camera) that detects a step; and a controller that controls a moving unit based on a detection result of the step detector. The controller controls the drive unit to cause the main body to move by selecting a first route on which the step exists in front of both of the wheels, or a second route on which no step exists any of the wheels, when the step exists only in front of one of the pair of wheels. This provides the self-propelled vacuum cleaner capable of increasing reliability of cleaning on the floor surface.

Abstract: Provided is a self-propelled vacuum cleaner including a main body, drive unit that moves and turns the main body, and an obstacle detector (an obstacle sensor, a ranging sensor, a camera) that detects an obstacle around the main body. The self-propelled vacuum cleaner further includes a lifter that lifts the main body from a floor surface, and a controller that controls a drive unit and the lifter based on a detection result of the obstacle detector. The controller controls the drive unit to cause the main body to avoid the obstacle while releasing lifting using the lifter when the obstacle has a depth in a traveling direction of the main body, the depth being smaller than a predetermined value. In contrast, when the depth is equal to or more than the predetermined value, the drive unit is controlled to cause the main body to run on the obstacle while being lifted by the lifter. This increases certainty of cleaning for the obstacle.

Abstract: Provided is a self-propelled vacuum cleaner including a main body that is provided with a pair of left and right wheels and that moves on a floor surface to clean the floor surface, a drive unit that is provided on the main body to move or turn the main body, a step detector provided on the main body to detect a step existing around the main body, and a controller that controls the moving unit based on a detection result of the step detector. The controller controls the moving unit to cause the main body to travel on the step in a changed route including a route that is substantially orthogonal to an edge of the step detected by the step detector, when a current traveling direction of the main body tilts with respect to the edge of the step. This provides the self-propelled vacuum cleaner capable of increasing reliability of cleaning for a rug.

Abstract: Provided is a worm mechanism provided with a worm shaft including a worm, and a worm wheel that meshes with the worm, the worm mechanism including: a first holding member configured to join a drive source that drives the worm shaft to bearings that support the worm shaft at both sides so that the worm shaft is rotatable; and a first urging member configured to urge the first holding member in a first direction in which the worm meshes with the worm wheel.

Abstract: Provided is a worm mechanism provided with a worm shaft including a worm, and a worm wheel that meshes with the worm, the worm mechanism including: a first holding member configured to join a drive source that drives the worm shaft to bearings that support the worm shaft at both sides so that the worm shaft is rotatable; and a first urging member configured to urge the first holding member in a first direction in which the worm meshes with the worm wheel.

Abstract: A nameplate attachment structure enables a nameplate to be attached in at least two variations of postures to a chassis outer surface of an apparatus, the nameplate being formed of an elastic body, the nameplate including: a shaft projected on a rear surface of an indication surface and having a distal end including a locking stop; and at least two engagement pieces respectively having hook projections, the chassis outer surface including: a support hole through which the shaft is inserted; and at least two engagement holes engageable with the engagement pieces. When the shaft is inserted through the support hole, the locking stop restricts movement of the nameplate in a direction in which the shaft extends, and when the engagement pieces are inserted through the engagement holes, the hook projections are engaged with the engagement holes so that the nameplate is attached to the chassis outer surface.

Abstract: A nameplate attachment structure enables a nameplate to be attached in at least two variations of postures to a chassis outer surface of an apparatus, the nameplate being formed of an elastic body, the nameplate including: a shaft projected on a rear surface of an indication surface and having a distal end including a locking stop; and at least two engagement pieces respectively having hook projections, the chassis outer surface including: a support hole through which the shaft is inserted; and at least two engagement holes engageable with the engagement pieces. When the shaft is inserted through the support hole, the locking stop restricts movement of the nameplate in a direction in which the shaft extends, and when the engagement pieces are inserted through the engagement holes, the hook projections are engaged with the engagement holes so that the nameplate is attached to the chassis outer surface.