Abstract: The health maintenance and promotion action support device is provided with a processor, the processor obtains action data pertaining to the user's health maintenance and promotion action including dental care; obtains evaluation data, pertaining to the health maintenance and promotion action, by the instructor instructing the user; and classifies the qualitative level of the user's health maintenance and promotion action based on the obtained action data and the evaluation data.

Abstract: A magnetic braking apparatus is integrally attached with a load detector such as an arm-like load cell through an attachment member, an outer fin, or a rotary joint between a yoke body and a stationary portion of an outside construction or facility thereby to form a magnetic braking apparatus having a function of load detection. A tension control system incorporates the magnetic braking apparatus with the load detector attached thereto to apply a braking force to a let-off reel. A controller in the tension control system calculates a roll diameter of the let-off reel based on a number of rotations detected by a rotation detector and a number of pulses generated in one rotation of the let-off reel, and generates a control signal representative of a desired braking torque which corresponds to the calculated roll diameter.

Abstract: An electromagnetic powder coupling device which can be used either as a brake or a clutch. In order to remove undesirable heat in the device, one attributable to Joule heat mainly emanated by field member, a rotor and a cylinder, and to other to frictional heat, especially inevitable for this kind of electromagnetic powder coupling device which is emanated by the friction between the rotor, cylinder and the magnetic powder filled in the space between the cylinder and the rotor, the coupling device incorporates a forced air draft cooling system. Two variations of cooling systems are disclosed, both of which have, in common with, at least a blower and a plurality of passages for forced draft air cooling not only to the external part but also to the inner part of the field member and the cylinder.

Abstract: A torque limiter comprises: a bottomed cylinder formed of a magnetic material; an end plate fixedly and coaxially fitted in the open end of the cylinder; a rotary shaft coaxially and rotatably supported in bearings fitted in the bottom wall of the cylinder and the end plate, respectively; two rotors formed of a magnetic material and coaxially secured to the rotary shaft; a permanent magnet disposed between and contiguously to the rotors and coaxially secured to the rotary shaft; an annular core formed of a magnetic material and coaxially fitted in the cylinder contiguously to the end plate; magnetic powder filled in the gap between the core and one of the rotors disposed opposite to the core; and sealing members disposed between the bottom surface of the cylinder and one of the rotors on the side of the bottom surface of the cylinder and between the inner end surface of the end plate and the other rotor on the side of the end plate.

Abstract: A torque limiter comprises: a bottomed cylinder formed of a magnetic material; an end plate fixedly and coaxially fitted in the open end of the cylinder; a rotary shaft coaxially and rotatably supported in bearings fitted in the bottom wall of the cylinder and the end plate, respectively; two rotors formed of a magnetic material and coaxially secured to the rotary shaft; a permanent magnet disposed between and contiguously to the rotors and coaxially secured to the rotary shaft; and an annular core formed of a magnetic material and coaxially fitted in the cylinder contiguously to the end plate; magnetic powder filled an axially in extending gap between the core and one of the rotors disposed opposite to the core; and sealing members disposed between the bottom wall of the cylinder and one of the rotors on the side of the bottom. surface of the cylinder and between the inner end wall of the end plate and the other rotor on the side of the end plate.