Abstract: A front winding base frame (1A) and a rear winding base frame (1B) are respectively provided with winding arms (3A and 3B) that hold winding shafts (4A and 4B) so as to be capable of ascending and descending vertically, and the winding arms (3A and 3B) are attached to the front winding base frame (1A) and the rear winding base frame (1B) so as to be capable of being exchanged between the front winding base frame (1A) and the rear winding base frame (1B). A front-side touch roller frame (13A) and a rear-side touch roller frame (13B) are respectively provided with touch rollers (16A and 16B) so as to be capable of ascending and descending vertically, and the touch rollers (16A and 16B) are attached to the front-side touch roller frame (13A) and the rear-side touch roller frame (13B) so as to be capable of being exchanged between the front-side touch roller frame (13A) and the rear-side touch roller frame (13B).

Abstract: A winding apparatus, such as a slitter rewinder, designed to shorten a distance between an unwinding shaft and a winding shaft, thereby downsizing the apparatus and attaining a significant cost reduction. To that end, in unwinding a web from the unwinding shaft, either to wind it onto the winding shaft or to slit it in the elongate direction into plural narrow-width webs and separate them alternately vertically or longitudinally, followed by winding onto respective winding shafts, the unwinding shaft is driven at a preset web speed, the winding shaft is driven at a preset web tension, guide rollers for guiding the web are disposed between the unwinding and winding shafts to thereby leave the guide rollers to rotate freely by contact with the web without their direct driving.

Abstract: In winding up a sheet web coated with a tacky adhesive, a roll changing method is provided which obviates the necessity of applying an adhesive. When changing the sheet web from a full wind roll wound up on a turret winder to a new core tube, the new core tube is revolved in reverse to the rotational direction of the turret, the sheet is cut between the full wind roll now turned by the turret and the new core tube revolving in reverse to it at a winding location, the adhesive side of the end of the cut sheet in the running direction is pressed and attached to the surface of the new core tube under reverse revolution and concurrently, the attached sheet is folded back, and the sheet web continuing from it is wound onto the new core tube, with its adhesive side being a surface side.

Abstract: To shape paperboard sheets into cylindrical winding cores in a winder instead of using ready-made hollow core tubes thereby doing away with the necessity of waste disposal of used winding cores or facilitating the discarding disposal by restoring them to the original flat shape. In the winding of a web using a multi-spindle turret type of winder, the spindle positions of the turret are allotted to a winding core shaping station, a web winding-up station and a wind-roll removal station. At the winding core shaping station, each sheet of paperboard is rolled and lapped around a winding core shaft and butt joining parts are attached with a pressure-sensitive adhesive tape to shape each winding core, shaped winding cores are transferred to the web winding-up station by the turning movement of the turret to conduct the winding, each full wind-up roll is transferred with further turning movement to the removal station and removed from the winder.

Abstract: A web winding device versatilely adaptable to a web wound on a winding shaft, e.g., physical properties, thickness, width, winding speed, etc. and yielding an optimal wind roll without entrained air. It contains a touch roller disposed in pressure contact with a wind roll at a web approaching position to it, a guide roller provided adjacently, upstream of the touch roller, and touch roller arms provided with both rollers, the touch and guide rollers being arranged so that the approaching direction of the web to the guide roller and the wrapping direction on the wind roll in pressure contact with the touch roller are kept in parallel and the position of the guide roller is controllable vertically, permitting the regulation of the web approaching angle to the touch roller in pressure contact with the wind roll.

Abstract: A core shaft having lugs protruding from its outer circumference to grip winding cores such as a paper tube is provided, wherein the movement of the lugs within a shell of the shaft is inhibited thereby to secure concentrical gripping of the winding cores with the core shaft and to prevent from decentering and vibration or runout of the winding cores, eventually enabling a smooth winding or unwinding of a sheet material.

Abstract: A two-shaft linear motion type winder for winding up a sheet material, e.g. a film is provided, which can eliminate the occurrence of any mechanical loss by simplification of a transission device, shorten the path distance of the film upon roll changing, prevent the neck-in and wrinkling of the film and reduce vastly the roll changing cycle. It comprises at least a pair of upper-stage winding frames having holders for an upper winding shaft, suspended from an upper main frame to be slidingly movable back and forth in a given area; and a pair of lower-stage winding frames having holders for a lower winding shaft, disposed on a lower main frame to face upwards so as to be slidingly movable longitudinally in a given area.

Abstract: A wet multiple disk clutch apparatus for use in vehicles has an input shaft; a clutch drum mounted on the input shaft; a plurality of first clutch plates positioned in the clutch drum and movable in an axial direction of the clutch drum and restricted against rotation; an output shaft; a hub fixed to the output shaft; a plurality of second clutch plates movably mounted on the hub for movement in the axial direction of the hub and restricted against rotation and with one second clutch plate positioned between each adjacent pair of first clutch plates; an actuator on the clutch drum for pressing the first and second clutch plates in the axial direction for pressing them together in clutching engagement; a plurality of guide holes opening out of the clutch drum at positions spaced at intervals around the clutch drum and each guide hole extending in the axial direction of the clutch drum, each of the first clutch plates having a plurality of pairs of projections on the outer periphery and extending into correspon

Abstract: Two rotary shafts to transfer a motive power are relatively rotatably coupled. One of the shafts is coupled to a rotor and the other is coupled to a cam. A plurality of plungers which execute a stroke motion in the axial direction by the relative rotation with the cam are provided for the rotor. The oil injection and discharge into/from the plunger enclosing chamber are executed by a rotary valve. The rotary valve automatically switches a phase relation so as to obtain correct opening/closing timings even if the direction of the relative rotation changed. The rotary valve rotates integratedly with the cam side and opens or closes intake/discharge holes of the plungers for a plurality of intake ports and discharge ports which are alternately formed on the cam surface. The discharge ports on the front surface of the rotary valve are mutually coupled by communicating grooves formed on the back surface. An orifice is formed between the communicating groove and the intake port.

Abstract: Two rotary shafts for transmitting power are coupled so as to be relatively rotatable. When a rotational speed difference occurs between the two shafts, a torque corresponding to the rotational speed difference is hydraulically generated and is transmitted from the shaft of the higher rotational speed to the shaft of the lower rotational speed. A cam surface having two or more cam mountains is formed on the inside edge surface of the cam housing. A rotor is assembled in the cam housing so as to be relatively rotatable. The rotor faces the cam surface and is formed with a plurality of plunger chambers in the axial direction. Plungers are movably assembled in the plunger chamber through return springs. The plunger chambers are connected to the high pressure chamber through delivery passages having delivery valves.

Abstract: A rotational force which was input from a transmission is received by a main shaft and transferred to the rear wheel side. The rotational force of the main shaft is transferred to the front wheel side through a hydraulic clutch. The hydraulic clutch receives the supply of an operating hydraulic pressure from an oil pump which is driven by a DC motor. Further, an operating hydraulic pressure is supplied in parallel to the hydraulic clutch from a second oil pump which is driven by the main shaft. The DC motor is driven only in the low-speed mode, stop mode, and reverse mode. On the other hand, after the motor was turned on at a rotational speed of a predetermined rotational speed or less, if the speed does not reach a second rotational speed higher than the predetermined rotational speed, the motor is not turned off.

Abstract: An improved apparatus for controlling the shift between two and four-wheel drivings comprises sensors for detecting the revolution velocities of a propeller and axle shafts, and a calculation unit for calculating a predetermined time duration during which the difference of the revolution velocities is less than a predetermined value after a shift member of the propeller shaft is shifted. A shift member of the axle shaft is shifted at a time during the predetermined time duration to be calculated by the calculation unit so that the shift is smoothly performed from two to four-wheel drivings without producing any gear sound or noise even in a high speed running.

Abstract: A workpiece bite device having a pinch member provided at a side for biting a workpiece in a pair of flat cutters which are disposed with those working blades facing each other for rolling the workpiece. The pinch member is fitted to a cutter body such that a starting portion of the pinch member is positioned at a side for charging the workpiece rather than a starting portion of the working blades of the cutter body, a terminal portion is positioned at a side of the working blade starting portion of the cutter body, and a top of the pinch member protrudes higher than a top of the working blade starting portion.

Abstract: A method of rolling with flat cutters having finishing blades for rolling a periphery of a pipe. In working, the pipe is rotatably supported at both ends by a pair of centers, a pair of flat cutters which have a plurality of corrugated finishing blades formed on a substantially triangular blade base are disposed such that the finishing blades face each other and the directions of the finishing blades are parallel to an axis of the pipe, and the flat cutters are moved rectilinearly in opposite directions to each other from an initial working position to a terminal working position such that one end of each finishing blade presses the pipe. Thus, the periphery of the pipe is progressively worked axially from one end of the pipe.

Abstract: A rolling flat cutter having finishing blades corresponding to corrugation of a product to be obtained by working a tubular or cylindrical workpiece, and a method of rolling by the flat cutter. When the workpiece is worked, a pair of flat cutters are disposed such that the finishing blades face each other, and the cutters are moved rectilinearly in opposite directions perpendicular to a direction in which the finishing blades extend so that the corrugation is formed on a periphery of the workpiece from an end to the other in an axial direction thereof. As to the rolling flat cutter, a flat cutter is used which comprises a rectangular cutter body, a triangular blade base formed as a higher step on one side of a plane of the cutter body along a straight line parallel with a diagonal of the plane, and the finishing blades are formed on the blade base.

Abstract: A transfer gear has high speed and low speed modes with two wheel drive or four wheel drive. A main drive shaft has a main drive gear rotatably mounted on it. A main shaft is coaxial with the main drive shaft and carries a speed change gear rotatably on it and drives the rear wheels. The main shaft further rotatably supports a front drive gear which transfers power to the front wheels. A counter gear assembly provides a speed reduction between the main drive gear and the speed change gear. A first switching mechanism connects the main drive shaft to either the main shaft or the main drive gear. A second switching mechanism connects the main shaft either to the speed change gear or to the front drive gear, or disconnects both the speed change gear and the front drive gear from the main shaft, or connects both the speed change gear and the front drive gear to the main shaft.

Abstract: The rotating brake plates and the fixed brake plates of a power train brake are pressed by way of the movement of the brake piston due to the supply of hydraulic pressure, thereby braking the output shaft. The guide rod is cantilever supported in the housing. The guide rod is inserted into a hole in the projecting portion at the outer periphery of the piston. The return spring is interposed between the flange portion at the end of the rod and the piston. When the hydraulic pressure is released, the brake piston is returned by the force of the return spring.