Abstract: In a motorcycle in which an engine body of an internal combustion engine is rubber-mounted on a vehicle body frame, to permit the rider(s) to enjoy a feeling of pulses. A rod-like frame member mounted at its one end to an engine body is abutted at its other end on a bottom plate of a rider's seat.

Abstract: When controlling each operational process in a molding cycle by variably controlling the number of revolutions of a drive motor 3 in a hydraulic pump 2, a hydraulic pump 2 where at least multiple fixed discharge flow rate Qo and Qs can be set is used as the hydraulic pump 2. At the same time, the fixed discharge flow rates Qo . . . are set corresponding to operational processes based upon predetermined conditions in advance, respectively, and the hydraulic pump 2 is switched to the fixed discharge flow rates Qo . . . by corresponding to each operational process at the time of molding. At the same time, each operational process is controlled by variably controlling the number of revolutions of the drive motor 3.

Abstract: A screw shaft for driving an injection screw driving body in a motor-driven injection device is coupled to a motor shaft of an electric motor in engagement of splines. A spline for the motor shaft engaging with a spline disposed at the outer periphery at a shaft end of the screw shaft is fitted into a recess formed inside of a motor shaft end. A flange formed around the spline is clamped at end face of the motor shaft via a bolt, and is formed at the inner periphery of a bearing sleeve detachably mounted to the motor shaft. An annular groove is formed at the inner periphery of an opening of the bearing sleeve for the side of the screw shaft. A ring member for air-tightly sealing a clearance formed between the screw shaft and the bearing sleeve is fitted into the annular groove. The spline for the motor shaft engaging with the spline on the screw shaft is disposed at the inner periphery of the bearing sleeve independent of the motor shaft, thus achieving the coupling via the respective splines of the motors.

Abstract: When constructing an injection molding machine M that is equipped with hydraulic pumps 2, which control discharge flow rates by variably controlling the number of revolutions of a drive motor 3, and that drives hydraulic actuators 4a . . . by these hydraulic pumps 2; the injection molding machine M is equipped with a hydraulic drive member 6 having multiple hydraulic pumps 2p and 2q, and a hydraulic oil supply circuit 5 jointly or individually supplying hydraulic oil to be discharged from multiple hydraulic pumps 2p and 2q to a hydraulic actuator 4a, 4b, 4c, 4d or 4e selected from the multiple hydraulic actuators 4a . . . .

Abstract: When controlling each operational process in a molding cycle by variably controlling the number of revolutions of a drive motor 3 in a hydraulic pump 2, a hydraulic pump 2 where at least multiple fixed discharge flow rate Qo and Qs can be set is used as the hydraulic pump 2. At the same time, the fixed discharge flow rates Qo . . . are set corresponding to operational processes based upon predetermined conditions in advance, respectively, and the hydraulic pump 2 is switched to the fixed discharge flow rates Qo . . . by corresponding to each operational process at the time of molding. At the same time, each operational process is controlled by variably controlling the number of revolutions of the drive motor 3.

Abstract: In a motorcycle in which an engine body of an internal combustion engine is rubber-mounted on a vehicle body frame, to permit the rider(s) to enjoy a feeling of pulses. A rod-like frame member mounted at its one end to an engine body is abutted at its other end on a bottom plate of a rider's seat.

Abstract: An actuator is driven by use of a power drive source, while drive output of the power drive source is switched among a plurality of different drive outputs. Values of a physical quantity regarding an operation state of the actuator and a physical quantity regarding energy consumption corresponding to the operation state are detected. One of the drive outputs is selected on the basis of the detected values and in accordance with a predetermined selection method, and the actuator is driven with the selected drive output.

Abstract: A screw shaft for driving an injection screw driving body in a motor-driven injection device is coupled to a motor shaft of an electric motor in engagement of splines. A spline for the motor shaft engaging with a spline disposed at the outer periphery at a shaft end of the screw shaft is fitted into a recess formed inside of a motor shaft end. A flange formed around the spline is clamped at end face of the motor shaft via a bolt, and is formed at the inner periphery of a bearing sleeve detachably mounted to the motor shaft. An annular groove is formed at the inner periphery of an opening of the bearing sleeve for the side of the screw shaft. A ring member for air-tightly sealing a clearance formed between the screw shaft and the bearing sleeve is fitted into the annular groove. The spline for the motor shaft engaging with the spline on the screw shaft is disposed at the inner periphery of the bearing sleeve independent of the motor shaft, thus achieving the coupling via the respective splines of the motors.

Abstract: Centering of an injection heating cylinder and screw driver is provided even after assembly, using an electric injection mechanism with height adjustment for the screw driver. A front plate is provided with an injection heating cylinder having a screw installed inside at the front middle and a rear plate is provided with are electric motor for injection-driving. The plates are affixed to an installation member. The front and rear plates are linked by guide bars installed between them. The screw driver is inserted into the guide bar and movably disposed between the plates. A driving mechanism connected to an electric motor is composed of a ball screw shaft and a ball nut member, and is installed over the screw driver and the rear plate. A centering member slidably supports the screw driver 10 and, moreover, provides height adjustment, and is installed at the sides of the screw driver.

Abstract: A pressure detection apparatus of an injection molding machine composed of a drive mechanism and a movable member includes a pressure reception member disposed in the drive mechanism in such a manner as to be movable in a reciprocating direction of the movable member while being guided by a guide member. A ball screw or nut of a ball screw mechanism of the drive mechanism is fixedly attached to the pressure reception member. A load cell is disposed between the drive mechanism and the movable member in such a way as to be fixedly attached to one of a bearing ring retainer facing the movable member and the pressure reception member while abutting the other. The pressure reception member receives stress (load) directed in a rotation direction and arising from the ball screw or nut, thereby preventing imposition of the stress (load) on the load cell.

Abstract: A projection is formed on the outer circumference of an annular member and a stopping member is attached to a cylinder head supporting a camshaft thereon. A side surface of the projection comes into contact with a side surface of the stopping member to restrain a decompression cam from turning when the camshaft rotates in the normal direction. The stopping member does not apply any pressure to the annular member in a radial direction and the annular member does not exert any force on the camshaft. Consequently, frictional resistance against the rotation of the camshaft can be reduced and a loss in the output of the engine can be suppressed.

Abstract: The object of the present invention is to allow to perform easily the centering of the injection heating cylinder and the screw driver by a simple means even after the assembly, by providing an electric injection mechanism with a height adjustment means of the screw driver. A front plate provided with an injection heating cylinder 4 having a screw 3 installed inside at the front middle and a rear plate 2 provided with an electric motor 5 for injection-driving are rested on and fixed to the installation member 7. The front and rear plates 1, 2 are linked by means of a plurality of guide bars 6 installed right and left between the plates. The screw driver 10 is inserted into the guide bar 6 and disposed movably forward and backward between the plates. A driving means connected to the electric motor 5 and composed of a ball screw shaft 11 and a ball nut member 12 is installed over the screw driver 10 and the rear plate 2.

Abstract: A drive motor has a shaft supported by a casing to be rotatable and movable in the axial direction over a predetermined stroke. A portion of the shaft is utilized in order to form a rotary motor section for rotating the shaft, and another portion of the shaft is utilized in order to form an electromagnetic plunger section for moving the shaft in the axial direction. The rotary motor section and the electromagnetic plunger section are integrally built in the casing. The drive motor is used in a drive apparatus for a pre-plasticization-type injection molding machine. The front end of the shaft is connected to the rear end of a screw disposed within a barrel of a plasticizing unit of molding machine. Through axial movement of the shaft, a resin passage of the barrel is opened and closed by a valve portion provided at the front end of the screw.

Abstract: A lubrication system for an engine includes an oil discharge port in a lower section of a crankcase. A crankshaft, with a crank web attached thereto, rotates in a rotation direction within the crankcase. A first distance is formed between the crank web and a first inner surface of the crankcase, downstream of the oil discharge port. A second distance is formed between the crank web and a second inner surface of the crankcase, upstream of the oil discharge port. The first distance is less than the second distance. Also, the oil discharge port is defined in part by a back edge, which is wedge shaped and points in a direction opposite the rotation direction of the crankshaft. The back edge scoops oil from the crank web and into the oil discharge port.

Abstract: A motor drive apparatus is provided in an injection molding machine in order to supply electrical energy to a motor. The motor drive apparatus includes an electricity accumulation unit for accumulating electrical energy; and an electricity accumulation circuit for accumulating in the electricity accumulation unit electrical energy regenerated from the motor during a deceleration period of the motor and for supplying the electrical energy accumulated in the electricity accumulation unit to the motor during an acceleration period of the motor.

Abstract: The inside of a crankcase for a four-cycle engine is divided by a bulkhead into a crank chamber and a transmission chamber. A crankshaft and a balancer shaft for suppressing engine vibrations by rotating in accompaniment with rotations of the crankshaft are rotatably attached within the crankshaft, and the balancer shaft is driven by the crankshaft via a gear set housed within the crank chamber. Meshing parts of a gear set can be sufficiently lubricated by oil mist without a special lubricating structure being required. Furthermore, the engine can be decreased in size without forming a sealed space for lubricating the gear set.

Abstract: A motor control apparatus for an injection molding machine has a control function section for stopping a drive motor; i.e., a servomotor in order to stop a movable member, upon reception of an open signal indicating that a safety door is opened. The motor control apparatus further includes an additional control function section for performing position control for the servomotor, upon reception of the open signal, so as to stop the movable member at a predetermined position. Therefore, when the safety door is opened and thus the open signal is supplied to the additional control function section, the additional control function section performs position control for the servomotor such that the movable member stops at the predetermined position.

Abstract: A chain guide structure having, in combination, a chain cover and a chain guide member which can easily and securely be placed on the chain cover for temporary assembling, and capable of improving the efficiency of the assembling work. A chain guide structure for guiding a chain wound round a driving sprocket supported on the sidewall of a crankcase and covered with a cover attached to the sidewall includes an elastic chain guide member having a substantially semicircular shape opening toward the rear and supported on the inner surface of the cover so as to extend along the chain. At least two ribs are formed on the inner surface of the cover so as to hold the chain guide member by elastically deforming the chain guide member so that the width of the open end of the chain guide member is changed.

Abstract: A non-contact signal generator which is adapted for the conduction signal source for the semi-conductor ignition system of so-called current-breaking type or induced-energy accumulating type and which is of the permanent-magnet-energization, variable magnetic reluctance type with one or more than two stationary pole number for generating one conduction signal for each pole in each rotation is disclosed.