Abstract: A host computer acquires a usage amount of a memory of a printing apparatus upon accepting a print instruction, and if the acquired free capacity of the memory is greater than a predetermined value, transmits generated print data based on the accepted print instruction. If the acquired free capacity of the memory is less than the predetermined value, the host computer displays a message before transmitting the print data.

Abstract: A power transmission system having a pendulum damper is provided. A rolling member of the pendulum damper is arrange in a rotary member, and a vibration damping performance of the pendulum damper is enhanced by increasing an inertia moment of the rolling member to be larger than that of the rotary member. The power transmission system is comprised of a hydraulic route for transmitting power between an input member and an output member through a fluid coupling, a mechanical route for transmitting power between the input member and the output member by engaging a lockup clutch, a pendulum damper that damps torsional vibrations of the output member by an oscillating motion caused by the torsional vibrations, and an elastic damper that damps the torsional vibrations by a relative rotation between a drive member and a driven member connected through an elastic member.

Abstract: A clevis pin (connecting pin) (26) is inserted into a clearance hole (72), and is displaceable relative to an operating pedal (16). A pivotal moving link (68) is disposed between the clevis pin (26) and a sensor pin (64) of a load sensor (30). A reaction force applied from the clevis pin (26) to the load sensor (30) always acts in a substantially constant direction (substantially leftward in FIG. 1A) even if the operating pedal (16) and an operating rod (22) are pivoted relatively around the axis of the clevis pin (26) in accordance with the depressing operation of the operating pedal (16). Thus, the detecting accuracy of the load sensor (30) is heightened, and variation in detecting accuracy is prevented, rendering the high reliability.

Abstract: A torsional vibration damping device in which a first rolling contact surface that is curved with a center of curvature at a location offset from a rotation center of a rotating body, which rotates upon receiving a torque, is formed along a circumferential direction of the rotating body at a location offset from the rotation center of the rotating body in a radial direction, and which includes the rolling element that is brought into contact with the first rolling contact surface by receiving a centrifugal force resulting from rotation with the rotating body and that rolls along the first rolling contact surface through torsional vibrations of the rotating body is described.

Abstract: A vibration damping device in which vibration damping performance of a damper having a chamber holding a rolling member is improved. The vibration damping device is adapted to damp vibrations resulting from a pulsation of torque applied to a rotary member by an oscillating motion of a rolling member connected with the rotary member while being allowed to rotate relatively therewith. The vibration damping device is provided with a casing member enclosing the rolling member, and a sealing member that connects the casing member with the rotary member in a manner such that the rotary member is allowed to rotate relatively with the casing member, while preventing oil from entering into an inner space of the casing member where the rolling member is held to oscillate.

Abstract: A vibration damping device which can improve a vibration damping performance of a damper having a chamber holding a rolling member. The vibration damping device is applied to a power transmission unit having an input side rotary member that transmits a power to an elastic member and an output rotary member that is rotated by the power transmitted from the elastic member. In order to damp vibrations of the output rotary member, the vibration damping device is comprised of a holding chamber rotated integrally with the input side rotary member and a rolling member held in the holding chamber in a manner to rotate in a same direction as the output side rotary member while being allowed to rotate relatively therewith.

Abstract: A vibration damping device capable of achieving sufficient vibration damping effect utilizing members for converting kinetic energy into thermal energy. In the vibration damping device, a plurality of members is attached to an object to be vibrated in a manner to displace relatively while being contacted with each other, and vibrations of the vibrating object is damped by converting kinetic energy resulting from the vibrations of the object into thermal energy by the relative displacement of the plurality of members. The vibration damping device includes a tightening member, which is attached to the plurality of members to tighten the plurality of members so as to increase frictional force among the plurality of members.

Abstract: A drill includes: a chip discharge flute opened in a tip surface; and a cutting edge formed at an intersecting portion between an inner wall surface of the chip discharge flute on a side of a drill rotation direction and a tip flank formed on the tip surface, the cutting edge being made up of a concavely-curved cutting edge portion formed on an inner circumferential side and a convexly-curved cutting edge portion formed on an outer circumferential side, a cross section orthogonal to an axial center having a first convex curve corresponding to the convexly-curved cutting edge portion and a first concave curve corresponding to the concavely-curved cutting edge portion intersecting with each other.

Abstract: The present invention provides a polybutylene terephthalate resin composition which satisfies performances such as high durability in an environment of heating and cooling cycles and adhesion properties to an addition-reaction type silicone rubber. Specifically, provided is the polybutylene terephthalate resin composition, exhibiting excellent adhesion properties to the addition-reaction type silicone rubber, including: (A) 100 parts by weight of polybutylene terephthalate resin; (B) 5 to 30 parts by weight of a styrene-based thermoplastic elastomer containing 40% by weight or less of styrene component; and (C) 20 to 100 parts by weight of glass fiber.

Abstract: To provide a simply-structured vibration damping device having excellent vibration damping capacity. A vibration damping device is configured to damp torsional vibrations of a rotary member of a hydraulic transmission 1, in which the rotary member is rotated integrally with a drive side impeller 2 or with a driven side impeller 5, and in which the drive side impeller 2 and the driven side impeller 5 are connected with a lockup clutch 26 actuated by fluid pressure.

Abstract: A control method for a control apparatus includes obtaining an amount of a recording material applied on a first area of a sheet and an amount of a recording material applied on a second area of the sheet on the basis of image data recorded on the sheet stacked on a stacking unit; and performing control, in a case where a plurality of sheets are stacked on the stacking unit, so that a difference between a total amount of the recording material applied on the first area of the sheets and a total amount of the recording material applied on the second area of the sheets does not exceed a predetermined value on the basis of the obtained amount of the recording material. With this method, a limit of the number of stacked sheets is relieved while stability of the stacked sheets is maintained.

Abstract: A vibration damping device capable of reducing a change in an order frequency of a reciprocating motion of a pendulum resulting from eccentricity of rotational members therein. The vibration damping device comprises a pendulum damping mechanism having a mass to dampen the torsional vibrations by an oscillating motion thereof resulting from the torsional vibrations. An inertial body is arranged in the prime mover side of the rotary shaft, an elastic damping mechanism is connected with a transmission side of the inertial body in a power transmittable manner, a pendulum damping mechanism is connected with the transmission side of the elastic damping mechanism in a power transmittable manner, and a torque limiter mechanism is connected with the transmission side of the pendulum damping mechanism in a power transmittable manner.

Abstract: A clevis pin (connecting pin) (26) is inserted into a clearance hole (72), and is displaceable relative to an operating pedal (16). A pivotal moving link (68) is disposed between the clevis pin (26) and a sensor pin (64) of a load sensor (30). A reaction force applied from the clevis pin (26) to the load sensor (30) always acts in a substantially constant direction (substantially leftward in FIG. 1A) even if the operating pedal (16) and an operating rod (22) are pivoted relatively around the axis of the clevis pin (26) in accordance with the depressing operation of the operating pedal (16). Thus, the detecting accuracy of the load sensor (30) is heightened, and variation in detecting accuracy is prevented, rendering the high reliability.

Abstract: A clevis pin (connecting pin) (26) is inserted into a clearance hole (72), and is displaceable relative to an operating pedal (16). A pivotal moving link (68) is disposed between the clevis pin (26) and a sensor pin (64) of a load sensor (30). A reaction force applied from the clevis pin (26) to the load sensor (30) always acts in a substantially constant direction (substantially leftward in FIG. 1A) even if the operating pedal (16) and an operating rod (22) are pivoted relatively around the axis of the clevis pin (26) in accordance with the depressing operation of the operating pedal (16). Thus, the detecting accuracy of the load sensor (30) is heightened, and variation in detecting accuracy is prevented, rendering the high reliability.

Abstract: A clevis pin (connecting pin) (26) is inserted into a clearance hole (72), and is displaceable relative to an operating pedal (16). A pivotal moving link (68) is disposed between the clevis pin (26) and a sensor pin (64) of a load sensor (30). A reaction force applied from the clevis pin (26) to the load sensor (30) always acts in a substantially constant direction (substantially leftward in FIG. 1A) even if the operating pedal (16) and an operating rod (22) are pivoted relatively around the axis of the clevis pin (26) in accordance with the depressing operation of the operating pedal (16). Thus, the detecting accuracy of the load sensor (30) is heightened, and variation in detecting accuracy is prevented, rendering the high reliability.

Abstract: To provide a simply-structured vibration damping device having excellent vibration damping capacity. A vibration damping device is configured to damp torsional vibrations of a rotary member of a hydraulic transmission 1, in which the rotary member is rotated integrally with a drive side impeller 2 or with a driven side impeller 5, and in which the drive side impeller 2 and the driven side impeller 5 are connected with a lockup clutch 26 actuated by fluid pressure.

Abstract: A vibration damping device capable of reducing a change in an order frequency of a reciprocating motion of a pendulum resulting from eccentricity of rotational members therein. The vibration damping comprises a pendulum damping mechanism having a mass to dampen the torsional vibrations by an oscillating motion thereof resulting from the torsional vibrations. An inertial body is arranged in the prime mover side of the rotary shaft, an elastic damping mechanism is connected with a transmission side of the inertial body in a power transmittable manner, a pendulum damping mechanism is connected with the transmission side of the elastic damping mechanism in a power transmittable manner, and a torque limiter mechanism is connected with the transmission side of the pendulum damping mechanism in a power transmittable manner.

Abstract: A printing apparatus includes an instruction unit configured to issue a print instruction for printing print data stored in a storage device or a print server, a determination unit configured to determine whether authentication information is included in the print data, and a printing unit configured to, when the instruction unit issues the print instruction without performing authentication operation for authenticating a user and when the determination unit determines that authentication information is included in the print data, print the print data in response to an input of the authentication information by the user, and when the instruction unit issues the print instruction after performing authentication operation for authenticating a user and when the determination unit determines that authentication information is included in the print data, print the print data without prompting the user to input authentication information.

Abstract: A dynamic damper for attenuating torsional vibration of a rotary member, in which a weighted center of a rolling member is offset from a geometric center to trace an elliptical orbit of a cycloid pendulum. The dynamic damper including, a housing having a rolling surface on its inner surface is formed in a rotary member, and a rolling member held in the housing in a manner to be rolled on the rolling surface by torque pulse exerted on the rotary member. In the dynamic damper, a curvature of the rolling surface is entirely constant, and a radius of the rolling member is smaller than that of the rolling surface. A weighted center of the rolling member is offset from a geometric center thereof. The rolling member is guided by a guiding mechanism to roll on the rolling surface.

Abstract: A dynamic damper for attenuating torsional vibration of a rotary member irrespective of oscillation angle of a pendulum. The dynamic damper 1 comprises a pendulum 3 oscillated by torque pulse of the rotary member 2, and oscillation frequency of the pendulum 3 is tuned to a torque pulse frequency. In a suspending member of the pendulum, a pivot point P and an oscillation length L of the pendulum 3 are changed in accordance with an increase in an oscillation angle of the pendulum 3. Therefore, a mass of the pendulum 3 is allowed to oscillate while tracing an approximate cycloid path so that the torsional vibration of the rotary member 2 can be attenuated irrespective of oscillation angle of the pendulum 3.