Abstract: An object of the present invention is to provide a fluid pressure cylinder improved in assembling performance so as to easily fix a partition wall to a cylinder main body. A plurality of pistons 15a and 15b are incorporated in a cylinder main body 11, axially aligned with each other, reciprocable in an axial direction, and respectively provided with piston rods 17a and 17b. A partition wall 14 is attached to the cylinder main body 11 so as to form pressure chambers 21a and 21b. A stopper space is formed by an engagement groove 31 provided to the partition wall 14 and a slit 32 formed so as to extend in a transverse direction of the cylinder main body 11. A stopper 34 is inserted in the stopper space in the transverse direction of the cylinder main body 11 so as to fix the partition wall 14 to the cylinder main body 11.

Abstract: In a liquid supply apparatus, plungers which respectively expand and contract pump chambers are reciprocated linearly in an axial direction with their phases shifted to each other, thereby continuously discharging liquid. In a pump block, drive rods are mounted so as to be reciprocatable in an axial direction. At a center in an axial direction of shafts attached to the drive rods, drive rollers are mounted, and rollers are mounted at both ends of the shafts. Guide grooves which support the guide rollers are formed in guide blocks.

Abstract: A solenoid is operated so as to be switched between a closed valve state in which the valve element is brought into contact with the valve seat by application of a spring force and an open valve state in which an electric current is passed through a coil (16) and the valve element is separated from the valve seat by a magnetic force. A fixed iron core (15) has a U-shape, and magnetically-attracting surfaces (26) are provided on respective ends thereof. A resin case (17) into which the fixed iron core (15) and the coil (16) are incorporated is provided with a bottom surface (27) having openings through which the magnetically-attracting surfaces (26) are exposed to the outside. A case contact surface (51) protruding toward a movable element in comparison with the magnetically-attracting surfaces (26) is formed on the bottom surface (27) of the case (17). Resin films (52) are provided on the respective magnetically-attracting surfaces (26).

Abstract: An ejector (20), which built in an ejector housing hole (18), comprises: a nozzle (21) for diffusing and ejecting compressed air from an air supply port (23); and a diffuser (22) formed with an ejection port (29) for discharging air ejected from the nozzle (21) and air flowing in from a suction port (30). A muffler main body (42) attached to an ejector block (11) is formed with a silencing chamber (43), and a distal-end wall portion (42b) of the muffler main body (42) is formed with an exhaust port (48) facing the ejection port (29). It is possible to achieve the silencing effect while ensuring the vacuum degree of negative-pressure air and the intake flow rate by discharging air from the exhaust port (48).

Abstract: A grease pump unit has a metering valve 37 and a grease supplying device 50 in which a suction tube 16 on a pump device 11 extends through a follower plate 19 in a grease can 100, grease in the grease can 100 being sucked through the suction tube 16 and discharged through a discharge port 17 by activation of the pump device 11. Provided are a bubble dividing device 32 which supplies the grease discharged through the discharge port 17 through an supply pipe 24 to micronize bubbles in the grease and which supplies the grease through a supply pipe 36 to the metering valve 37, and a return pipe 47 which returns a portion of the grease not discharged through the metering valve 37 into the grease can 100 via the follower plate 19.

Abstract: Provided is an ion generator that has a potential sensor provided integrally inside the main body of the ion generator, and that can measure, with the potential sensor, an electric field that reaches the potential sensor from a member from which static charge is to be eliminated, without being affected by an electric field between a discharge electrode and an opposing electrode. This ion generator comprises a discharge electrode, an opposing electrode, and a main body part including these electrodes, the ion generator sending out, toward a member from which static charge is to be eliminated, air ions generated by applying a high voltage between the electrodes.

Abstract: An object of the present invention is to remove foreign matter such as liquid droplets from air with high efficiency using a filter. This filter is used to purify air by removing foreign matter such as liquid droplets and dust from the air. A separation unit is formed with a port block and a separation cylinder, and the port block is formed with a primary port and a secondary port. A collection container is attached to the separation unit, and liquid droplets exhausted from an exhaust port formed at a lower end portion of a separation unit fall down into a collection container. A conical portion of the separation unit is formed with a communication hole through which the separation chamber and the storage chamber communicate with each other, whereby the separation chamber and the storage chamber become equal in pressure to each other.

Abstract: This filter is used to purify air by removing foreign matters such as liquid droplets contained in the air. A separation unit (23) is formed with a port block (13) and a separation cylinder (20), and the port block is formed with a primary port (11) and a secondary port (12). From the secondary port (12), the air purified by removing the foreign matters in a separation chamber (25) of the separation unit (23) is flowed out. A discharge pipe (37) for guiding the purified air to the secondary port (12) is disposed in a center portion of a swirl flow generating chamber (24). The foreign matters discharged from the discharging port (31) are collected in a collection container (27). In the collection container (27), a baffle plate 51 having a liquid guiding surface (50) is provided. A fin (52) is provided in an outer peripheral portion of the baffle plate (51), and the liquid guiding surface (50) positioned at a center portion of the baffle plate (51) is flat.

Abstract: The attaching/removing workability of the collecting vessel of a conditioning apparatus with respect to a port block is increased. A primary-side port and a secondary-side port are formed in a port block 13, and a female screw part 27 that is screwed to a male screw part 23 is provided to the collecting vessel 24 that is mounted to the port block 13. An annular lock member 31 is mounted to the opening end of the collecting vessel 24 so as to be movable in the axial direction. A tongue piece 38 that presses the annular lock member 31 towards the outside in the axial direction of the collecting vessel 24 is provided to the inside of the annular lock member 31. A movable-side engagement part 41 that engages a fixed-side engagement part 42 of the port block 13 when the collecting vessel 24 is rotated to a position of fastening completion is provided to the annular lock member 31.

Abstract: A flow path switching valve has an injection side portion formed with an injection chamber and an outer valve seating surface, and a discharge side portion provided with a partition member formed with an inner valve seating surface. A discharge control block communicating with a discharge chamber is formed with a control flow path which is increased and decreased in volume by a discharge rod. To fill the control flow path with grease, a valve element closes an inner flow path and opens an outer flow path. On the other hand, to discharge the grease in the control flow path to the discharge chamber, the valve element closes the outer flow path and opens the inner flow path. After being supplied to the control flow path, the grease is supplied to the discharge chamber.

Abstract: There is provided a potential measuring device of non-contact type which can improve measurement sensitivity. A potential measuring device which measures a charged object in a non-contact manner with a sensor includes: a first shutter and a second shutter each having a shutter part provided with an opening and a leaf spring part; a magnet attached to the leaf spring part of each of the first shutter and the second shutter; a yoke on which a coil is disposed, the coil applying an alternating magnetic field to the magnet of each of the first shutter and the second shutter to cause the shutter part to reciprocate via the leaf spring part; and a natural frequency adjusting means for adjusting a natural frequency of at least one of a first shutter system including the first shutter and the magnet and a second shutter system including the second shutter and the magnet.

Abstract: A potential measuring device which measures a charged object in a non-contact manner with a sensor may include a first shutter having a first shutter part, which is provided with a first opening which can be positioned at a position opposing the sensor, and leaf spring parts extending from both ends thereof; a second shutter having a second shutter part, which is provided with a second opening which can be positioned at a position opposing the sensor and the first opening, and leaf spring parts extending from both ends thereof; a coil provided so that a direction along a center axis opposes portions of the leaf spring parts; and a magnet provided on each of regions opposing both end sides of the coil in the leaf spring parts extending from the both ends of each of the first shutter part and the second shutter part.

Abstract: An internal pilot type pressure regulator 10 reduces a pressure of compressed air supplied to a primary port 11 and causes it to flow out to a secondary port 12. The pressure of air which flows into the secondary port 12 is set by rotating a handle 61 so as to adjust a spring force which is added to a pilot diaphragm 49. When a bonnet 47, into which the pilot diaphragm 49 and a pressure regulating member 59 are incorporated, is inserted in a pressure regulating adapter 28 and then rotated, an outward projecting portion 71 abuts on an inward projecting portion 73 and is mounted. When a lock member 77 is inserted between the outward projecting portion 71 and the inward projecting portion 73, the pressure regulating adapter 28 is locked.

Abstract: A linear-reciprocating device 10 has a moving block 13 which is attached to a guide rail 12 provided to a support base 11 so as to freely reciprocate, ball rolling grooves 23a and 23b which form ball rolling paths 24a and 24b together with ball rolling grooves 21a and 21b are provided to a base end of the moving block 13, and ball circulation holes 25a and 25b which are communicated to the ball rolling paths 24a and 24b are provided to a base end. In a longitudinal-directional middle area of the moving block 13, return blocks 32a and 32b which communicate between the ball rolling paths 24a and 24b and the ball circulation holes 25a and 25b are provided. The moving block 13 moves to a position at which the moving block 13 is moved to a position at which the moving block is protruded from a distal end of the guide rail 12.

Abstract: In a chemical liquid supplying apparatus 10a for discharging chemical liquid by expanding and contracting a pump chamber 16 which communicates with a chemical liquid inlet 21 and a chemical liquid outlet 22, the apparatus has a cylinder 12 in which a piston 31 is accommodated and reciprocally movable in an axial direction. A bellows 35 which is elastically deformable in the axial direction is mounted to a cylinder hole 30 between the tip of a connection rod 34 and the cylinder 12. On the inside of the bellows 35, an expanding/contracting chamber 37 is formed as a compartment between the connection rod 34 and the bellows 35, a pressure chamber 38 which communicates with the expanding/contracting chamber 37 is provided on the tip side of the piston 31, and an incompressible indirect medium 39 is enclosed in the expanding/contracting chamber 37 and the pressure chamber 38.

Abstract: This swirl flow generator is used to purify air by removing foreign matters such as liquid droplets and dusts contained in the air. A cylindrical blade portion (34) is arranged in a swirl flow generating chamber (24) through which the air flows in the axial direction, and the air flowed in the axial direction along the blades (35) is radially jetted toward inside of the cylindrical blade portion (34) to form swirl flow. The air supplied into the swirl flow generating chamber (24) in the axial direction is guided by the closing lid portion (38) toward the inflow-side end surface of the cylindrical blade portion (34). The air flow downward from the outside of the cylindrical blade portion (34) is prevented by the annular base portion (33).

Abstract: A pressure gauge 10 has an indicator needle 23 and a scale plate 22. A preset pressure indicating member 31 extending along a pressure scale in a circular arc pattern is slidably attached to a front wall 11 of a case 13, and provided with a first display section 35. An opaque shield portion 36 provided with a second display section 37 at one end thereof is provided to a transparent cover 26 rotatably attached to the front wall. The transparent cover 26 drives the preset pressure indicating member 31 to set a preset pressure range between the first display section 35 and the second display section 37 which is observable from the outside through the transparent cover 26. Therefore, it is easy to change a preset pressure range which is within a measurable range of the pressure gauge.

Abstract: A pilot type pressure regulator has: a primary port to which air is supplied from the outside; and a secondary port discharging air regulated by a main valve body provided to a main valve shaft. A main valve diaphragm abutting on an abutting end surface of the main valve shaft partitions an inner space into a secondary pressure chamber communicating with the secondary port and a pilot pressure chamber to which pilot pressure is supplied. This pressure regulator has an exhaust mechanism exhausting air from the secondary pressure chamber to the outside when pressure of the secondary port exceeds a set value. In the exhaust mechanism, a stopper holding a sealing material in a guide hole is inserted from the side close to a main valve hole, that is, an inner end portion.