Abstract: A drive apparatus according to an embodiment includes a support unit, an arm, an operation target and a bias part. The support unit includes an electrically-driven first driving source. The arm is supported by the support unit at one end part of the arm, and is, by the first driving source, rotatable about a first rotational axis that is along an extending direction of another end part of the arm extending from the one end part, the arm including an electrically-driven second driving source. The operation target is attached to the another end part side of the arm, and is, by the second driving source, rotatable about a second rotational axis intersecting with the extending direction. The bias part biases the operation target in a direction toward the arm along the second rotational axis.

Abstract: An angle adjustment device of an embodiment includes a first rotational unit and a spring member. The first rotational unit is supported by a frame body, and rotationally moves around a first rotating shaft that passes through the frame body and that is disposed along an opening surface of the frame body, by a driving force of a driving source with an object to be operated. The spring member urges the first rotational unit in a single direction of a rotational direction.

Abstract: A drive apparatus according to an embodiment includes a first rotation unit, a base, a lead screw unit, and a second rotation unit. The first rotation unit includes a gear rotatable in first directions by a drive power source. The base is joined to the gear and is rotatable in the first directions with the gear. The lead screw unit is provided to the base and moves a shaft back and forth in a certain direction. The second rotation unit is pivotally supported by the base, rotates in second directions different from the first directions, and supports a certain supported member rotatably in the second directions.

Abstract: A rotation range-limiting device 10 is provided with a rotation body 20 provided with a first surface and a carrying surface, and a stationary body 30 supporting the rotation body such that the rotation body is rotatable about a center point thereof. The stationary body has a second surface opposed to the first surface. One 212 of the first surface and the second surface is provided with an arc-shaped slide-guiding portion 24 whose center corresponds to the center point of the rotation body, and a slider 26 movable along the slide-guiding portion. The other 301 of the first surface and the second surface is provided with a locking portion 36, which projects toward the slide-guiding portion at a location on a circle having the same diameter as the slide-guiding portion such that it can abut against the slider.

Abstract: An angle adjuster is configured by disposing a first driver for driving a horizontal rotation frame (horizontal direction rotator) to rotate in the horizontal direction and a second driver for driving a vertical rotation frame (vertical direction rotator) to rotate in the vertical direction on the horizontal rotation frame. This configuration can reduce the size of the angle adjuster and a lighting apparatus with the angle adjuster.

Abstract: An apparatus for shaving a tap hole surface of a blast furnace or the like wherein efficiency can be improved, and a worker can be freed from physically burdensome work in the vicinity of the lower furnace wall of a blast furnace under high temperature. The apparatus includes a surface shaving unit having smoothing bits, and a rotating mechanism unit that, when the surface shaving unit is pressed against the tap hole surface, rotates the surface shaving unit, by utilizing the pressing force, by a predetermined angle in a predetermined direction substantially parallel to the surface, and holds the surface shaving unit at the rotated position. The rotating mechanism unit eliminates the need for work such that every time a conventional surface shaving unit is separated from the tap hole surface after being pressed against the surface, a worker manually rotates the surface shaving unit by a predetermined angle.

Abstract: A rotation range-limiting device 10 is provided with a rotation body 20 provided with a first surface and a carrying surface, and a stationary body 30 supporting the rotation body such that the rotation body is rotatable about a center point thereof. The stationary body has a second surface opposed to the first surface. One 212 of the first surface and the second surface is provided with an arc-shaped slide-guiding portion 24 whose center corresponds to the center point of the rotation body, and a slider 26 movable along the slide-guiding portion. The other 301 of the first surface and the second surface is provided with a locking portion 36, which projects toward the slide-guiding portion at a location on a circle having the same diameter as the slide-guiding portion such that it can abut against the slider.

Abstract: A processing apparatus including an expansible and contractable bellows unit mounted on a workpiece holding unit for covering an area of movement of the workpiece holding unit in a feeding direction and a guide unit for guiding the expansion and contraction of the bellows unit in the feeding direction. The guide unit has an opening for allowing the movement of the workpiece holding unit in the feeding direction and a gutter extending in the feeding direction adjacent to the opening. The bellows unit has a bellows member having one end connected to the workpiece holding unit and the other end connected to the guide unit. The processing apparatus further includes a floating unit for floating the bellows member along the gutter of the guide unit in a noncontact manner.

Abstract: A lighting apparatus includes a light source unit having a light source portion configured to mount a light source thereon, and a light distribution angle adjusting means coupled to the light source portion and configured to change an irradiation range of the light source. The light distribution angle adjusting means includes a reflector provided with a spiral guide portion in a peripheral surface thereof and configured to reflect a light emitted from the light source, a movable body having an engaging portion configured to slidably engage the guide portion and a control portion configured to limit a direction of a movement to a rotation axis direction of the reflector, a support configured to support a movement of the movable body in the rotation axis direction of the reflector, and an optical component secured to the movable body and configured to change a light path of the light.

Abstract: A rotation range-limiting device 10 is provided with a rotation body 20 provided with a first surface and a carrying surface, and a stationary body 30 supporting the rotation body such that the rotation body is rotatable about a center point thereof. The stationary body has a second surface opposed to the first surface. One 212 of the first surface and the second surface is provided with an arc-shaped slide-guiding portion 24 whose center corresponds to the center point of the rotation body, and a slider 26 movable along the slide-guiding portion. The other 301 of the first surface and the second surface is provided with a locking portion 36, which projects toward the slide-guiding portion at a location on a circle having the same diameter as the slide-guiding portion such that it can abut against the slider.

Abstract: There is provided a load sensor including: a pressing shaft configured to transmit a load in an axial direction of the pressing shaft; a sensor element configured to measure the load being transmitted by the pressing shaft; and a load limiting means configured to limit the load applied to the sensor element and protect the sensor element from being applied with excessive load, the load limiting means being configured to be deformable by the load when the load transmitted by the pressing shaft exceeds an allowable measurement range set for the sensor element.

Abstract: A processing apparatus including an expansible and contractable bellows unit mounted on a workpiece holding unit for covering an area of movement of the workpiece holding unit in a feeding direction and a guide unit for guiding the expansion and contraction of the bellows unit in the feeding direction. The guide unit has an opening for allowing the movement of the workpiece holding unit in the feeding direction and a gutter extending in the feeding direction adjacent to the opening. The bellows unit has a bellows member having one end connected to the workpiece holding unit and the other end connected to the guide unit. The processing apparatus further includes a floating unit for floating the bellows member along the gutter of the guide unit in a noncontact manner.

Abstract: A lift frame supports a turntable unit, and moves between a lower-most position and a read/write position in conjunction with slide movement of a follower slider. The follower slider has a pressing member and a cam groove. Pressed to a bottom plate of a device chassis by a coil spring, the pressing member stabilizes the movement of the follower slider. The cam groove fits onto a lifting pin of the lift frame. At the read/write position, the cam bottom wall is constituted of a pin pushing portion. The pin pushing portion is pushed upward by the coil spring to press the lifting pin to a cam groove upper wall when the lift frame is in the read/write position.

Abstract: A lifting frame has a lifting pin that fits into a lifting cam groove of a follower slider, and swings up and down about a rod near a disk slot. A holding member is swingably attached to front end of the lifting frame. This holding member supports a turntable unit for holding a disk. The holding member has a cam follower pin that fits into a swinging cam groove of a loading slider to raise and lower the holding member. When the lifting frame swings down from a read/write position to a lowered position, the holding member inclines from the lifting frame so as to place the turntable unit substantially parallel to a disk carrying direction.

Abstract: A disk unit is disclosed wherein a disk inserted by a pivoting arm is loaded to the interior of the disk unit or a disk accommodated in the interior of the disk unit is unloaded to the exterior of the disk unit, the disk unit including a plurality of arms able to convey two types of disks different in diameter while supporting an outer periphery edge of each of the disks.

Abstract: To eject an optical disk forcibly from a disk device by a manual operation, an operation pin is inserted into an emergency hole of a front bezel. Then, the operation pin causes first and second ejection levers to move rearward to push a first transmission gear down to a disengaged position. When the first transmission gear is pushed down to the disengaged position, a loading slider begins to move forward according to a biasing force of a coil spring, feeding the disk outward. After moving a distance forward, the loading slider is stopped against a receiving portion of a first ejection lever, thereby to stop the disk at a half-eject position where the disk slightly protrudes from the bezel. Thereafter, when the operation pin is pulled out, the loading slider moves forward along with the pull-out movement of the operation pin, and the disk is fed out to a full-eject position.

Abstract: A disk unit is disclosed wherein a disk inserted by a pivoting arm is loaded to the interior of the disk unit or a disk accommodated in the interior of the disk unit is unloaded to the exterior of the disk unit, the disk unit including a plurality of arms able to convey two types of disks different in diameter while supporting an outer periphery edge of each of the disks.