SMC Patente

[Abstract][Object] To provide a stop-valve-equipped solenoid valve assembly in which decrease in the flow rate of compressed air can be suppressed, and a stop valve module.[Solution] A stop-valve-equipped solenoid valve assembly 1 includes stop valve modules 40, having stop valves 61, interposed between a plurality of solenoid valves 10 and a supply/exhaust base 20.Each module has a first end 40a at one end in the longitudinal direction, an upper end surface 43a in which a plurality of upper openings are provided and to which a solenoid valve is connected, a lower end surface 43b in which a plurality of lower openings are provided and to which the supply/exhaust base is connected, and a communication passage group 44 including a plurality of communication passages that connect the upper and lower openings.These communication passages include a supply communication passage 52. This supply communication passage includes first and second supply communication passages 52a and 52b, which extend further toward the first end side than a second exhaust communication passage 54, which is disposed on the extreme first end side in the communication passage group, and a passage communication portion 52c that connect end portions of the communication passages.The stop valve opens and closes the passage communication portion.

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A remote wireless device (20) that performs wireless communication with a base wireless device (10) comprises: a generation unit (128) that generates data (DT) to be transmitted to the base wireless device on the basis of input information (SI) from an external device (50); and a communication unit (120) that transmits the data generated by the generation unit to the base wireless device. When having transmitted the data to the base wireless device, the communication unit does not transmit the data again until a standby period (Tw) elapses since the transmission of the data.

In order to maintain synchronization of wireless communication, a remote wireless device (20) is provided with: a communication unit (120) whereby a synchronization maintenance signal (SM) transmitted from a base wireless device (10) in a transmission cycle (Tt) which is a plurality of times the length of a predetermined cycle (Tu) is received in a reception cycle (Tr) which is a predetermined number (N) of times the length of the transmission cycle (Tt); and a synchronization unit (122) that maintains the synchronization. The predetermined number is an integer of 1 or more. The reception cycle is the sum of a first period (T1) in which the communication unit receives the synchronization maintenance signal and a second period (T2) in which the communication unit does not receive the synchronization maintenance signal. The first period is a period including one or more of the predetermined cycles included in the reception cycle.

A remote wireless device (20) that performs wireless communication with a base wireless device (10) comprises: a communication unit (120) capable of receiving, in a reception cycle (Tr), a synchronization establishment signal (SE) transmitted in each transmission cycle (Tt); and a synchronization unit (122) that, if the synchronization establishment signal has been received, synchronizes the generation timing of a clock signal of the remote wireless device with a clock signal of the base wireless device. The reception cycle is the sum of a first period (T1) in which the synchronization establishment signal can be received by the communication unit and a second period (T2) in which the synchronization establishment signal cannot be received, and is neither a value obtained by multiplying the transmission cycle by a positive integer nor a value obtained by multiplying the transmission cycle by the reciprocal of a positive integer.

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A vacuum pad (10A) uses a vacuum to clamp a workpiece (W), said vacuum pad comprising: a hollow pad body (16) that has a clamping surface (14) which contacts the workpiece; an annular attachment part (18) that is provided to the pad body and that is for attachment to a first support member (200); and a valve unit (50) that is provided to the inside of the attachment part and that adjusts the flow rate of air flowing through a suction flow path (52) which sucks air from an internal space of the pad body.

A gas supply device (10) for supplying gas to a biological sample comprises: an inlet port (122) through which the gas flows in; an outlet port (124) through which the gas flows out; a discharge port (126) through which the gas is discharged to the outside; a pressure adjustment valve (82) having a main valve (132) that adjusts, according to a pilot pressure, the pressure of the gas flowing through a flow path (150), and an exhaust valve (134) that discharges the gas in the flow path from the discharge port in accordance with the pilot pressure; a pilot pressure adjustment solenoid valve (84) that adjusts the pilot pressure; and a throttle flow path (50) that limits the flow rate of the gas to a predetermined flow rate.

Provided is an electric actuator (10) having a moving member (18) that moves along a frame member (13) by a driving force of a motor (12). A seal member (45) provided in a slit (38) of a frame (16) of the frame member includes a first seal member (46) attached to a first slit side surface (41), and a second seal member (48) attached to a second slit side surface (43). In a portion where a connection part (66) is not located, the first seal member and the second seal member are attached such that the first seal member supports the second seal member and the second seal member covers a tip part of the first seal member.

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[Object] The present invention provides a spool-type switching valve in which a piston and a spool valve can be connected efficiently.[Solution] The spool-type switching valve has a spool hole 25 elongated along an axial line L and has first and second piston chambers 32 positioned at respective opposite ends of the spool hole 25. The spool hole accommodates first and second spool valves 11b, and these piston chambers accommodate first and second pistons 33. First and second coupling portions 70b are disposed between a valve end surface 34 formed at an end of the spool valve and a piston end surface 33a of the piston that opposes the valve end surface 34. Each of the coupling portions has a projection 72 projecting from the valve end surface and a wall 36 projecting from the piston end surface. The coupling portion has an insertion recess 77 inside the wall 36. An engagement groove 73 is formed in the projection. The wall has a cutout groove that is cut out in the axial direction. The wall has a leg portion disposed inside the cutout groove and also has an engagement hook 47 formed at an end portion of the leg portion. In the state of the projection being inserted in the insertion recess, the engagement hook engages the engagement groove, and the spool valve and the piston are thereby connected together.

[Object] To provide a selector valve block assembly allowing mixed mounting of various types of selector valve blocks onto an air supply/exhaust block and to provide an air supply/exhaust block. [Solution] In a selector valve block assembly 1, first and second selector valve blocks 60A and 60B having output ports 64a and 64b and a first air supply/exhaust block 10 having air supply and air exhaust ports 12 and 13 are coupled to one another. The first air supply/exhaust block has first air supply and first air exhaust openings in one side surface and has second air supply and second air exhaust openings in the other side surface. The first and second air supply openings and the air supply port are communicated, and the first and second air exhaust openings and the air exhaust port are communicated. The centers of the openings are disposed on different axial lines. When the first selector valve block is coupled to one side surface of the first air supply/exhaust block, air supply and air exhaust flow passages are coupled to the first air supply and second air exhaust openings, and, when the second selector valve block is coupled to the other side surface of the first air supply/exhaust block, air supply and air exhaust flow passages are coupled to the second air supply and second air exhaust openings.

[Object] In a poppet valve, a packing is surely mounted on a valve rod to prevent this packing from dropping off from the valve rod in operation of the selector valve.[Solution] A packing 26 with a ring shape is mounted on a packing mounting surface 27 formed in a packing-mounted portion 17 of a valve rod 11 by holding an outer circumferential portion 26b of the packing 26 between a packing holding member 30 attached to the packing-mounted portion 17 and the packing mounting surface 27 in a state in which one side surface 26d of this packing 26 is made to abut against the packing mounting surface 27 and an inner circumferential portion 26a of this packing 26 is fitted in a packing support groove 29 formed at the inner diameter end of the packing mounting surface 27.

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An area transition information generation unit (20) determines a piston area on the basis of the outputs of first to third MR sensors (12, 14, 16), updates area transition information when the piston area transitions between two continuous areas, and does not update the area transition information when the piston area jumps and transitions between two non-continuous areas. A switch signal generation unit (28) switches a switch signal on the basis of at least the area transition information.

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