Abstract: A lever operation device includes a housing, a lever portion which is attached to the housing and on which a first rotation operation about a first shaft is performed, a magnet attached to a tip portion of the lever portion, a magnetic sensor that is arranged in the housing so as to be located on extension from the tip portion, and a detent portion provided on the lever portion and includes a detent tip end portion and an elastic portion, the detent tip end portion generating a detent by moving with a tilt in a direction of the first rotation operation from a direction of extension from the tip portion of the lever portion and coming into contact with a detent surface of a detent wall arranged on the housing, and the elastic portion applying an elastic force to the detent tip end portion.

Abstract: A lever operation device includes a lever portion on which a first rotation operation about a first shaft is performed, a magnet attached to a tip portion of the lever portion, a magnetic sensor to detect movement of the magnet due to the first rotation operation performed on the lever portion, and a housing including a first room, in which the tip portion is attached, and a second room which is separated from the first room by a wall and in which the magnetic sensor is disposed.

Abstract: A lever operation device includes a lever main body on which a first rotation operation about a first shaft is performed, a bracket portion that includes an insertion opening for insertion of the lever main body and a through-hole in communication with the insertion opening, a housing which rotatably holds the bracket portion and on which a detent wall including a detent surface is arranged, and a detent portion that is inserted into the through-hole and includes a detent tip end portion in contact with the detent surface, a detent base end portion in contact with the lever main body inserted into the insertion opening of the bracket portion, and an elastic portion applying an elastic force, which is generated by being sandwiched and compressed by the detent surface and the lever main body, to the detent surface and the lever main body.

Abstract: A lever operation device includes a housing, a lever portion which is attached to the housing and on which a first rotation operation about a first shaft is performed, a magnet attached to a tip portion of the lever portion, a magnetic sensor that is arranged in the housing so as to be located on extension from the tip portion, and a detent portion provided on the lever portion and includes a detent tip end portion and an elastic portion, the detent tip end portion generating a detent by moving with a tilt in a direction of the first rotation operation from a direction of extension from the tip portion of the lever portion and coming into contact with a detent surface of a detent wall arranged on the housing, and the elastic portion applying an elastic force to the detent tip end portion.

Abstract: A lever operation device includes a lever main body on which a first rotation operation about a first shaft is performed, a bracket portion that includes an insertion opening for insertion of the lever main body and a through-hole in communication with the insertion opening, a housing which rotatably holds the bracket portion and on which a detent wall including a detent surface is arranged, and a detent portion that is inserted into the through-hole and includes a detent tip end portion in contact with the detent surface, a detent base end portion in contact with the lever main body inserted into the insertion opening of the bracket portion, and an elastic portion applying an elastic force, which is generated by being sandwiched and compressed by the detent surface and the lever main body, to the detent surface and the lever main body.

Abstract: A lever operation device includes a lever portion on which a first rotation operation about a first shaft is performed, a magnet attached to a tip portion of the lever portion, a magnetic sensor to detect movement of the magnet due to the first rotation operation performed on the lever portion, and a housing including a first room, in which the tip portion is attached, and a second room which is separated from the first room by a wall and in which the magnetic sensor is disposed.

Abstract: A scrubbing agent includes activated carbon having a spherical shape, a median particle size of 100 to 800 ?m, a peak pore diameter of 0.7 nm to 1.2 nm, and a micropore volume of not less than 0.5 cm3/g. The activated carbon satisfies Condition (1). Condition (1): when a sample activated carbon in an amount of one gram is distributed on the surface of 100 g pure water having a temperature of 20° C. and placed in a beaker with a depth of 5 cm; the beaker is placed in a vacuum desiccator; the vacuum desiccator is evacuated with a vacuum pump for 20 minutes; the pure water in the beaker is stirred with a stirring bar at 100 rpm for one minute; and the beaker is left to stand for 30 minutes, not less than 95% by mass of the sample precipitates on the bottom of the beaker.

Abstract: A vacuum capacitor and its manufacturing method are disclosed.

Abstract: A crushing machine having enhanced crushing efficiency. The crushing machine includes an outer casing having a fixed jaw and a movable jaw each having a crushing blade for crushing reinforced concrete. The movable jaw includes a crushing blade having a rear-side edge formed in a substantially right-angled shape with a small arcuate edge portion located at an angled edge portion thereof, and a front-side edge generally formed by a large arcuate edge portion. The rear-side edge of the movable jaw crushing blade is oriented to face in a longitudinally inward direction away from a distal end of the movable jaw. The inward orientation of the rear-side edge along with its substantially right-angled shape allow the movable jaw crushing blade to concentrate the load of the crushing machine to the small point of contact between the movable jaw crushing blade and the reinforced concrete, thereby maximizing the crushing efficiency of the crushing machine.