Abstract: A riding-type powered lawn mower has a frame, front and rear wheels rotatably mounted on the frame, an engine mounted on the frame for rotating the rear wheels, a cutter deck mounted on the frame and housing a cutter blade drivable by the engine, a driver's seat mounted on the frame by a seat bracket in front of the engine, and a steering column mounted on the frame forwardly of the driver's seat. The riding-type powered lawn mower also has a body paneling mounted on the frame. The body paneling comprises a unitary front body cover covering the steering column, the seat bracket, and a front portion of the engine, and a unitary rear hood detachably connected to a rear end of the front body cover and covering a rear portion of the engine.

Abstract: To detect an impact due to a shock with high precision and stability, a shock sensor is employed which provides a sufficiently long closure interval of a contact of a reed switch (1) enough to carry out signal processing. A gap between an outer surface of a magnet (2) and an inner wall (8) of a housing (7) defining a passage for the magnet (2) comprises a first gap (G1) between a stationary position and an activating position and a second gap (G2) between the activating position and a stop position. The inner wall (8) is formed so that the first gap (G1) is greater than the second gap (G2). The velocity of the magnet (2) is lower when travelling in the second gap (G2) than the velocity in the first gap (G1) because air resistance is greater in the second gap (G2). Accordingly, the closure interval is increased.

Abstract: An electronic crash sensor which can operate appropriately in response to any form of crash of a vehicle. An input acceleration waveform from an accelerometer is first processed to peak cut any portion thereof lower than a predetermined value. Then, a value obtained such peak cutting is time integrated. Then, a time integrated value of a predetermined function is subtracted from a value obtained by such time integration. Then, the value of the acceleration waveform thus obtained is compared with a predetermined time function value, and when the former is higher than the latter, a triggering signal is delivered to a trigger circuit to trigger operation of a passenger protecting apparatus such as an air bag of the vehicle.

Abstract: A seat for a special vehicle, includes a seat back, a seat cushion, and a pair of elongated stays for interconnecting the seat back and the seat cushion. The seat back includes a back frame, a first cushioned padding having lower and upper sections, the lower section having bulged portions formed at its left and right side portions by bulging the left and right side portions to a relatively large degree in a manner to allow the lower section to have a substantially C-shape in cross section, and a first covering sheet covering the first cushioned padding therethrough, the first cushioned padding, covered with the first covering sheet, being attached to the back frame.

Abstract: A shredding machine has a rotary cutter and a fixed cutter. The rotary cutter includes a cutter part with a spiral cutting edge and a flute, and a column part for rotatably holding by a holding member for rotation of the rotary cutter. The fixed cutter has a cutting edge contacting with the cutter part of the rotary cutter. In rotating the rotary cutter, longitudinal slips of documents are fed between the cutters so that the documents enter the flute of the rotary cutter to cut the slips into chips by cooperation between the cutting edge of the rotary cutter and the cutting edge of the fixed cutter.

Abstract: An automatic paper feeder for use in a document shredder includes a paper feeding table for receiving, a large number of paper sheets to be shredded in a stack, a feeding roller for feeding the paper sheets to be shredded on the paper feeding table, a set of shredding blades, and a driving device for driving the feeding roller for rotation. The rotational peripheral speed of the feeding roller are set larger than the speed of the shredding blades.

Abstract: Polykis-azobenzenes as an important coloring material can be prepared by irradiating diazidobenzene or a derivative thereof with ultraviolet light in the form of a solution in an organic solvent, in the form of a thin film or fine powder or in the form of vapor under reduced pressure.

Abstract: A paper feeding system of a paper shredder comprises a paper set block provided in the shredder main body; a paper feed opening formed at the end of the paper set block on the side of the shredding cutter; a paper transport device for sending papers automatically through the paper feed opening to the shredding cutter; an openable cover for shielding the paper set block and the paper feed opening; a locking device for locking the cover in the closed position; and a paper insertion opening allowing papers to be input into the paper set block without opening the cover.