Abstract: A bridge circuit converts input direct-current voltage and outputs alternating-current voltage. A filter circuit attenuates a high-frequency component of the alternating-current voltage output from the bridge circuit. A clamping circuit is disposed between the bridge circuit and the filter circuit, and is capable of short-circuiting the output side of the bridge circuit. A control circuit has a first mode in which a switching element causes the alternating-current voltage to be output to the filter circuit at three or more voltage levels, and a second mode in which the switching element causes the alternating-current voltage to be output to the filter circuit at two voltage levels. When power conversion devices have their alternating-current side output paths connected and operate in parallel, at least one of the power conversion devices operating in parallel operates in the second mode.

Abstract: A cutter blade of a lawn mower includes a blade body and flaps. The blade body includes a shape with a sweepback angle inclined in a reverse-rotation direction of the cutter blade. The flap pivotal axis is provided along a blade edge without intersecting with a blade rotational axis. A flap pivotal axis is provided at a position offset from a line perpendicular to the blade rotational axis and in parallel to the pivotal axis, in a rotation direction of the cutter blade.

Abstract: In a utility vehicle having a body and driven wheels rotatably fastened to the body, auxiliary driven wheels, having an outer diameter smaller than that of the driven wheels and a width equal to or smaller than that of the driven wheels, are coaxially fixed to the driven wheels.

Abstract: The present invention is to provide a biaxially-stretched layer polyamide film which is excellent in bag breakage resistance, impact resistance and bending fatigue resistance, particularly in bending fatigue resistance under low-temperature environments, is excellent in an effect such as bag breakage prevention during transportation or storage of products when used as a packaging material for packaging foods or the like, can exhibit both high heat seal strength and good appearance even when being automatically filled with a liquid soup, a seasoning agent, or the like at a high speed, and further has improved volume reduction performance and environmental friendliness as compared with conventional polyamide films, and is thus suitable for various packaging applications, particularly for packaging bags for filling liquid materials such as soup and sauce. The biaxially-stretched layer polyamide film comprising: an A layer of a mixed polymer containing 97 to 70 wt. % of an aliphatic homopolyamide, 3 to 20 wt.

Abstract: Comprising a first lens group G1 having positive refractive power, disposed at the most object side, and an image side lens group disposed at a side closer to an image than the first lens group G1, upon zooming, at least a distance between the first lens group G1 and the image side lens group being varied, the image side lens group comprising a vibration reduction lens group GVR which is moved so as to have a component in a direction perpendicular to the optical axis and a focusing lens group GF which is moved along the optical axis upon focusing, thereby providing a variable magnification optical system which has a higher optical performance, an optical apparatus and a method for manufacturing a variable magnification optical system.

Abstract: The art is formed of, disposed in order from an object, a first lens group (G1) having positive refractive power, a second lens group (G2) having negative refractive power, and a third lens group (G3) having positive refractive power, in which at least a part of the second lens group (G2) or at least a part of the third lens group (G3) is configured to be movable, as a vibration-proof lens group for correcting an image blur, so as to have a component in a direction perpendicular to an optical axis, and the following conditional expression is satisfied: 4.40<f1/(?f2)<8.00 where f1 denotes a focal length of the first lens group (G1), and f2 denotes a focal length of the second lens group (G2).

Abstract: In a utility vehicle having a body and driven wheels rotatably fastened to the body, auxiliary driven wheels, having an outer diameter smaller than that of the driven wheels and a width equal to or smaller than that of the driven wheels, are coaxially fixed to the driven wheels.

Abstract: A zooming optical system is provided, which is constituted by, in order from an object: a first lens group having positive refractive power; a second lens group having negative refractive power; a third lens group having positive refractive power; a fourth lens group having negative refractive power; and a fifth lens group having positive refractive power. In the zooming optical system, the first lens group is moved along the optical axis upon zooming, at least a part of the second lens group to the fifth lens group being moved so as to include a component orthogonal to the optical axis, and the following conditional expressions are satisfied: 4.41<f1/(?f2)<5.33 and 2.15<f1/f3<4.95, where f1 denotes a focal length of the first lens group, f2 denotes a focal length of the second lens group, and f3 denotes a focal length of the third lens group.

Abstract: A shoulder harness for a portable work machine comprises a back member that is to be located on a back of an operator, said back member including a main frame, to which a downward extension frame connected with a waist belt is detachably attached; right and left shoulder belts that respectively extend from right and left upper end portions of said back member; a joint buckle that is to be located on a chest of said operator, distal ends of said right and left shoulder belts being connected to said joint buckle; a hip pad that is to be located on a side of a waist of said operator, and is provided with a locking device, to which a work machine is connected; a relay member that is located above said locking device, and is connected to said locking device by a hanging member; a rear suspension belt that is connected to said relay member and said back member; and a front suspension belt that is connected to said relay member and said joint buckle.

Abstract: A pipe-shaped fixture (100) to be attached to a housing (120) of a work machine includes a fixture body (102) having a front-end projection (110) and a rear-end projection (112) that make front and rear limits of a rubber cushion (104) that encloses the fixture body (102) closely and circumferentially. The front- and rear-end projections (110, 112) are connected to each other by a plurality of longitudinally extending ridges (114) formed at circumferential intervals. The ridges (114), front- and rear-end projections (110, 112) define a plurality of concavities (116) surrounded thereby on the outer circumference of the fixture body (102). The front- and rear-end projections (110, 112) cause longitudinal vibration of an operation rod (130) relative to the housing (120) to act as a compression force on the rubber cushion (104), and thereby suppress longitudinal vibration of the operation rod (130) while maintaining effects of suppressing horizontal and vertical vibrations.

Abstract: A zoom optical system ZL to be mounted on an optical apparatus such as a single lens reflex camera 1, comprising, in order from an object side, a first lens group G1 having positive refractive power, a second lens group G2 having negative refractive power, a third lens group G3 having positive refractive power, a fourth lens group G4 having negative refractive power, a fifth lens group G5 having positive refractive power, and a sixth lens group G6 having negative refractive power. The zoom optical system is configured such that at least a portion of any one lens group among these lens group G1 to G6 may be moved such that a component in a direction perpendicular to the optical axis may be included. Thus, there are provided a zoom optical system that can suppress well variation in aberrations upon zooming, an optical apparatus equipped therewith and a method for manufacturing the zoom optical system.

Abstract: A shoulder harness for a portable work machine comprises a back member that is to be located on a back of an operator, said back member including a main frame, to which a downward extension frame connected with a waist belt is detachably attached; right and left shoulder belts that respectively extend from right and left upper end portions of said back member; a joint buckle that is to be located on a chest of said operator, distal ends of said right and left shoulder belts being connected to said joint buckle; a hip pad that is to be located on a side of a waist of said operator, and is provided with a locking device, to which a work machine is connected; a relay member that is located above said locking device, and is connected to said locking device by a hanging member; a rear suspension belt that is connected to said relay member and said back member; and a front suspension belt that is connected to said relay member and said joint buckle.

Abstract: An optical system includes, in order from an object side, a first lens group having positive refractive power, a second lens group having negative refractive power, and a third lens group having positive refractive power. The second lens group is moved upon carrying out focusing from an infinitely distant object to a close object, at least a portion of the third lens group is moved in a direction including a component perpendicular to an optical axis, and given conditional expressions is satisfied. Accordingly, an optical system excellently suppressing variations in aberrations generated upon vibration reduction, an optical apparatus equipped therewith, and a method for manufacturing the optical system are provided.

Abstract: A variable magnification optical system ZL to be mounted on an electronic still camera 1 or the like is configured to have, in order from the object side, a first lens unit G1 having a positive refractive power, a second lens unit G2 having a negative refractive power, a third lens unit G3 having a positive refractive power, a fourth lens unit G4 having a negative refractive power, and a fifth lens unit G5 having a positive refractive power, and configured in such a manner that, in variable magnification, the first lens unit G1 is fixed, that, in focusing, the third lens unit G3 moves, and that at least a part of the fifth lens unit G5 moves so as to have a component in a substantially orthogonal direction to the optical axis.

Abstract: New method to control the optical transmitter is disclosed. The optical transmitter provides both of the ATC feedback loop and the APC feedback loop. When a failure occurs in the ATC feedback loop and the temperature sensor is unable to output an adequate signal any longer, the optical transmitter cuts the APC loop and operates the LD in constant conditions. The output of the monitor PD is transferred to the ATC loop to control the TEC based on the optical output of the LD.

Abstract: A zoom lens system includes, in order from an object side: a first lens group having positive refractive power; a second lens group having negative refractive power; a third lens group having positive refractive power; a fourth lens group having negative refractive power; and a fifth lens group having positive refractive power. Upon zooming from a wide-angle end state to a telephoto end state, a position of the first lens group is fixed. At least a portion of any one of the lens groups is moved in a direction including a component perpendicular to an optical axis, and a given conditional expression is satisfied, thereby providing a zoom lens system capable of excellently suppressing variation in aberrations upon zooming and upon correcting an image blur, an optical apparatus including the zoom lens system, and a method for manufacturing the zoom lens system.

Abstract: A zoom optical system ZL to be mounted on an optical apparatus such as a single lens reflex camera 1, comprising, in order from an object side, a first lens group G1 having positive refractive power, a second lens group G2 having negative refractive power, a third lens group G3 having positive refractive power, a fourth lens group G4 having negative refractive power, a fifth lens group G5 having positive refractive power, and a sixth lens group G6 having negative refractive power. The zoom optical system is configured such that at least a portion of any one lens group among these lens group G1 to G6 may be moved such that a component in a direction perpendicular to the optical axis may be included. Thus, there are provided a zoom optical system that can suppress well variation in aberrations upon zooming, an optical apparatus equipped therewith and a method for manufacturing the zoom optical system.

Abstract: Gas canister retaining structure includes: a gas canister cover pivotable between an opened position for attaching/detaching a cassette gas canister to/from the retaining structure and a closed position for accommodating and holding the gas canister in place within the canister cover; a mouthpiece support section provided inside the gas canister cover for supporting a mouthpiece portion of the cassette gas canister with a jet nozzle of the cassette gas canister received in a nozzle receiving port provided in the mouthpiece support section; and a shutter member pivotable between an opened position for opening the nozzle receiving port and a closed position for closing the nozzle receiving port.

Abstract: An engine fuel injection control apparatus includes a variable valve device that at least varies an intake valve open timing of an intake valve. A controller adjusts the variable valve device and a fuel injection timing of a fuel injection valve. The controller controls a fuel injection end timing in accordance with an overlap amount of the intake valve and an exhaust valve. The controller adjusts the fuel injection timing such that the fuel injection end timing is more advanced than the intake valve open timing and such that as an amount by which the overlap amount exceeds a prescribed overlap amount becomes larger, a time interval between the fuel injection end timing and the intake valve open timing is set to become increasingly larger, upon determining that the engine is being cold started and the overlap amount is larger than the prescribed overlap amount.