Abstract: The present invention relates to a grease replacement method of replacing grease in a case (84) including a sealable gear chamber (31, 36) accommodating a gear (85) as a member to be lubricated, a grease injection port (61, 62) configured to inject grease into the gear chamber (31, 36), and a discharge port (32, 37) configured to discharge the grease in the gear chamber (31, 36), and a grease suction device to be used to perform this method. The grease replacement method includes a suction step (S2) of sucking the grease in the gear chamber (31, 36) from the grease injection port (61, 62) with the discharge port (32, 37) being open, and discharging the grease outside the case (84), and an injection step (S4) of injecting new grease into the grease injection port (61, 62) and supplying the new grease to the gear (85). This facilitates discharging of old grease.

Abstract: In a directional control valve device, a first passage connects a second port with a first port by using a part of a movement path of a moving valve element when the moving valve element is in a position of a first end. A second passage connects the second port with the third port by using an internal passage of the moving valve element when the moving valve element is in a second end. The moving valve element is provided with a first check valve for permitting a flow in the internal passage only in the direction from the third port to the second port. When a fluid pressure is applied to the third port, the fluid pressure presses the moving valve element toward the second end so that the first passage is closed, and the first check valve is opened to open the second passage.

Abstract: A six-degree-of-freedom travelling system, wherein a solid is driven by eight suspending lines in six degrees of freedom. The six-degree-of-freedom travelling system can be provided as a bodily sensing machine comprising a human-riding cage: eight suspending lines in connection with the cage; eight actuators hauling and veering the respective lines for vary the position and attitude of the cage, and a controller controlling the eight actuators for constantly holding the eight lines under proper tensions, wherein the cage is travelled in six degrees of freedom.

Abstract: A method of determining the success or failure of the press fitting a workpiece into an object member having a contact end by a linearly-driven plunger is disclosed. In a predetermined stroke range RM of the plunger press fitting the workpiece, thrust information S1 and position information S2 are acquired. The position where the ratio of change of the thrust information S1 with respect to the position information S2 exceeds a predetermined value is detected as an almost press fit end position LLP. The success or failure of the press fitting work is determined according to whether the thrust information S1 is included in a predetermined range of a section from a predetermined determination start position LLH to a determination end position LLQ during the press fitting work. The determination end position LLQ is determined based on the almost press fit end position LLP.

Abstract: A fluid flow control valve assembly which comprises a valve housing having defined therein a valve chamber defined therein a valve hole, inflow and outflow ports adapted to be communicated with each other through the valve chamber by way of the valve hole; and a valve rod inserted exteriorly of the housing and into the valve chamber and coupled with a handle for turning the valve rod about a longitudinal axis thereof thereby to move the valve rod in a direction coaxial with the longitudinal axis of the valve rod to adjust an opening of the valve hole. The valve rod includes a valve member formed on one end of the valve rod confronting the valve chamber and axially movably inserted in the valve hole, and a shank portion formed on a generally intermediate portion of the valve rod and slidably, but fluid-tightly sealing the valve chamber.

Abstract: A solenoid valve and manifold assembly wherein a solenoid pilot change-over valve can be selectively used as of the internal pilot type or as of external pilot type. The manifold comprises a gasket capable of being disposed between a manifold body and a valve body of a change-over valve of the solenoid pilot change-over valve alternatively in first or reverse second orientation and having a supply hole, an internal pilot hole and an external pilot hole formed therein. The supply path is communicated with an inlet port of the valve body by way of the supply hole whether the gasket is disposed in the first or second orientation.

Abstract: An applicator for applying various kinds of paint, liquid adhesives and the like to a surface in such a way that they are spread evenly and uniformly on the surface. The applicator possesses a cylindrical member which has an applicating liquid reservoir formed in it and a conduit to carry the applicating liquid from the outside into the applicating liquid reservoir, and internally apply pressure on a resilient closure which maintains a slit normally closed, such internal pressure causes the slit to open along its entire length when the internal pressure of the applicating liquid in the applicating liquid reservoir is more than a predetermined level. The cylindrical member is designed in such a way that the slit opens equally along its entire length.

Abstract: This disclosure relates to apparatus comprising a reverse osmosis membrane module, a reciprocating pump and a double-acting hydraulic cylinder. The pump includes a piston defining on its opposite sides a first cylinder chamber and a second cylinder chamber which has a smaller cross-sectional area than the first chamber. The first chamber connects with a feed fluid supply conduit provided with a feed valve which opens when the first chamber expands. The membrane module includes an inlet and an outlet. The inlet connects with the first cylinder chamber when the first cylinder chamber contracts in volume, and the outlet connects with the second cylinder chamber through a selector connecting with a concentrate fluid drain conduit.

Abstract: A piston position detecting device including a cylinder tube, a cap cover and a head cover closing both ends of the cylinder tube, a piston slidably provided within the cylinder tube, a piston rod connected to the piston on its axis and passing through the head cover, a ring-shaped permanent magnet provided on one end of the piston and at least one reed switch provided in at least one cover and extending into the interior of the cylinder tube with the reed switch being displaced axially from the center of the piston and provided transversely to the axis of the piston.

Abstract: A rotary business form printing press wherein a differential gear for controlling the velocity of the roller is provided between a feed roller in a sheet feed mechanism and the drive mechanism, an adjustment device for the impression cylinder for adjusting the wheel base between an impression cylinder and a blanket cylinder is provided in the impression cylinder, motors for adjusting the positions are provided on wheels in a punching unit and in processing heads in a slitter and a vertical perforation unit, rotational angle detecting devices are provided on respective revolving shafts of a plate cylinder, wheels in the punching unit, a perforation cylinder and crank discs in a zig-zag folding unit, and differential gears for adjusting the vertical register are provided between these revolving shafts and the drive mechanism.