Abstract: In order to enable the outflow direction of a fluid to be changed and to enable the outflow position of the fluid to be freely set, a nozzle device (7) of the present invention comprising: a flow path body that flows or holds a fluid and that has a flow path wall (6); and a nozzle unit (1) including a nozzle body (3) having a spherical surface on an outer periphery thereof and having a fluid passage (3a) formed thereinside, a holding mechanism of the nozzle body (3), and a securing member (4) that fixes the holding mechanism to the flow path wall (6), wherein the holding mechanism is made of a pair of thin plate members (2), each having a contact holding portion (2b) in contact with the spherical surface of the nozzle body (3) and having a flat portion (2a), and the holding mechanism rotatably holds the spherical surface in a state in which the nozzle body (3) is sandwiched by the contact holding portions (2b) of a pair of the thin plate members (2).

Abstract: Provided is a joint structure with which a pipe can be disconnected without moving the pipe in a longitudinal direction thereof, even if the pipe is not machined. A first sleeve 2 has an inner cavity into which a pipe 100 is inserted, and one end part of the first sleeve comes into contact with a joint body 1. A second sleeve 3 has a hole into which the pipe 100 is inserted, and one end part of the second sleeve comes into contact with the other end part of the first sleeve. A nut 4 covers one end part of the joint body 1, the first sleeve 2, and the second sleeve 3, and the nut is threaded onto the joint body in a state of pressing against the surface of the second sleeve 3 on the side opposite from the first sleeve 2.

Abstract: A fitting to be connected to a pipe includes: a first member; a second member coupled by screw coupling with the first member; and a ferrule placed in an accommodation space formed by an inner circumferential surface of the first member, an inner circumferential surface of the second member, and an outer circumferential surface of the pipe. The ferrule has a rising portion including a first end portion, a pressed portion located closer to a second end portion than the rising portion, and an intermediate portion including a portion where an inner diameter is greater than the first end portion and the second end portion, the intermediate portion connecting together the rising portion and the pressed portion. The first member has a first tapered inner circumferential surface, which is an inner circumferential surface having a tapered shape, to be in contact with the first end portion of the ferrule. The second member has a pressing portion for pressing at least a portion of the pressed portion of the ferrule.

Abstract: In order to be able to join a pipe member and a pipe joint more firmly than before without using welding, a joining structure airtightly or liquid-tightly joins an outer peripheral surface of the pipe member and an inner peripheral surface of a cylindrical member to be mounted on the pipe member, and the pipe member and the cylindrical member are made inseparable by an annular protrusion formed on the inner peripheral surface of the cylindrical member.

Abstract: In order to enable the outflow direction of a fluid to be changed and to enable the outflow position of the fluid to be freely set, a nozzle device (7) of the present invention comprising: a flow path body that flows or holds a fluid and that has a flow path wall (6); and a nozzle unit (1) including a nozzle body (3) having a spherical surface on an outer periphery thereof and having a fluid passage (3a) formed thereinside, a holding mechanism of the nozzle body (3), and a securing member (4) that fixes the holding mechanism to the flow path wall (6), wherein the holding mechanism is made of a pair of thin plate members (2), each having a contact holding portion (2b) in contact with the spherical surface of the nozzle body (3) and having a flat portion (2a), and the holding mechanism rotatably holds the spherical surface in a state in which the nozzle body (3) is sandwiched by the contact holding portions (2b) of a pair of the thin plate members (2).

Abstract: A valve includes a housing defining therein a channel, a valve seat on an inner surface of the housing at a middle of the channel, a valve body member seated on and unseated from the valve seat to close and open the channel, and a stem spaced from the valve seat and rotatable around a first axis parallel with an opening surface of the valve seat. The valve body member and the stem respectively have a restricting hole and a restricting projection mutually slidably engageable to form a cam mechanism. The cam mechanism, in conjunction with rotation of the stem, reciprocates the valve body member between the seated position and the unseated position, and rotates the valve body member to be in a posture along a flow direction of a fluid flowing through the housing at the unseated position.

Abstract: A valve includes a housing defining therein a channel, a valve seat on an inner surface of the housing at a middle of the channel, a valve body member seated on and unseated from the valve seat to close and open the channel, and a stem spaced from the valve seat and rotatable around a first axis parallel with an opening surface of the valve seat. The valve body member and the stem respectively have a restricting hole and a restricting projection mutually slidably engageable to form a cam mechanism. The cam mechanism, in conjunction with rotation of the stem, reciprocates the valve body member between the seated position and the unseated position, and rotates the valve body member to be in a posture along a flow direction of a fluid flowing through the housing at the unseated position.

Abstract: A fitting to be connected to a pipe includes: a first member; a second member coupled by screw coupling with the first member; and a ferrule placed in an accommodation space formed by an inner circumferential surface of the first member, an inner circumferential surface of the second member, and an outer circumferential surface of the pipe. The ferrule has a rising portion including a first end portion, a pressed portion located closer to a second end portion than the rising portion, and an intermediate portion including a portion where an inner diameter is greater than the first end portion and the second end portion, the intermediate portion connecting together the rising portion and the pressed portion. The first member has a first tapered inner circumferential surface, which is an inner circumferential surface having a tapered shape, to be in contact with the first end portion of the ferrule. The second member has a pressing portion for pressing at least a portion of the pressed portion of the ferrule.

Abstract: A fitting includes: a first member; a second member coupled by screw coupling with the first member; and a ferrule placed in an accommodation space between the first member, the second member, and a pipe. The ferrule has a rising portion including a first end portion, a pressed portion located closer to a second end portion than the rising portion, and an intermediate portion including a portion where an inner diameter is greater than the first end portion and the second end portion, the intermediate portion connecting together the rising portion and the pressed portion. The first member has a first tapered inner circumferential surface, which is an inner circumferential surface having a tapered shape, to be in contact with the first end portion of the ferrule. The second member has a pressing portion for pressing at least a portion of the pressed portion of the ferrule.

Abstract: A joint that connects pipelines, a pipeline with a fluid control device, or a pair of fluid control devices is provided therein with a pipe functional component. Examples of the pipe functional component include various valves such as a diaphragm valve, a check valve, a branch valve, a relief valve, a ball valve and a bellows valve, or a filter.

Abstract: A coupling ring is provided, including a series of unit members with adjacent unit members rotatably coupled to each other, and a fastener coupling unit members on both ends to each other. A concave groove provided to extend circumferentially is externally fitted into an outer circumference of each of two opposing flanges. The unit members on the both ends are coupled to each other by the fastener to be turned into an annular state. The fastener is fastened to thereby press an inclined surface. The flanges are pressure-bonded to each other by forces generated during pressing. A stopper member is provided to restrict a separation angle between the unit member on one end and an adjacent unit member to fall within a certain angle in an open state in which the unit members on the both ends are not coupled to each other provided on at least one of the unit members.

Abstract: A joint that connects pipelines, a pipeline with a fluid control device, or a pair of fluid control devices is provided therein with a pipe functional component. Examples of the pipe functional component include various valves such as a diaphragm valve, a check valve, a branch valve, a relief valve, a ball valve and a bellows valve, or a filter.

Abstract: An engagement section of a holder is engaged with a metal gasket, the gasket is received in a tubular section, and the tubular section is fitted in a step of a connection pipe. Another connection pipe is placed close to and facing the connection pipe that holds the gasket through the holder, and a center ring is installed surrounding the outer peripheries of the flanges. While a trapezoidal section having slopes which define both sides is inserted into a groove, center ring segments are closed to form a ring shape. A bolt which penetrates through a cutout of a segment is screwed into a threaded hole of the segment. The screwing of the bolt causes the amount of insertion of the trapezoidal section, which has slopes which define both sides, into the groove to be increased. As a result, the distance between flanges is reduced and the contact pressure of projections against both sides of the gasket is increased.

Abstract: A method and a device for bending a metal hollow thick walled member to a predetermined angle without deviation of the bending center position and without separation from a half die when presser die moves up. With a pair of guide plates (GP1 and GP2) turnably attached to a center pin CP kept horizontal and the axis center of the center pin intersecting with the axis center of the metal hollow thick walled member PM, the member PM is mounted on a half die (82a). When die holding members (80a and 80b) fixedly connected to the above guide plates and kept horizontal are inclined and separated from each other as the center pin lowers, the member PM is bent to the predetermined angle and held on the half die (82b). When the center pin that can be moved vertically by a guide member moves down to a predetermined position, a contact portion (96b) contacts the inclined surface of a stopper (92b) to allow a base plate (16) to receive a pressing force from an upper die via the stopper.

Abstract: To prevent attachment in an inclined state, a coupling ring with an inner concave groove is fitted to an outer circumferences of abutting flange portions, and is fastened to reduce an inner diameter thereof so that an inclined surface formed on each side surface of the concave groove presses an inclined surface formed on an opposite surface of each of the flange portions. The pair of flange portions are coupled by force generated at the time of pressing. An attachment correcting surface is provided on each of the flange portions or each of the pipes so that, only where the coupling ring is attached and fastened in an orientation inclined at an angle equal to or larger than a prescribed angle, the attachment correcting surface is abutted to a part of the coupling ring prior to completion of the fastening so as to prohibit the part from being brought closer.

Abstract: A stainless-steel fitting for resin tubes, which easily and securely connects resin tubes and is also inexpensive, is provided. Resin tube (9) is inserted into insert part (8), provided on fitting main body (1); nut (3) is screwed onto fitting main body (1) and sleeve (2) is moved; in the pipe fitting which presses and locks resin tube (9) between insert part (8) and sleeve (2), a step part, composed of large diameter part (2a) and small diameter part (2b), is formed on the outer surface of the sleeve part (2); the length of small diameter part (2b) is that wherein the end-face of the small diameter part (2b) protrudes outward from nut (3), when sleeve (2) is inserted into nut (3); and nut (3) and sleeve (2) are integrated by pressing and spreading the inner diameter of this end-face.

Abstract: In order to simplify a configuration of a fluid system without increasing the number of parts of an intermediate support body while using a common intermediate support body, the fluid system includes a fluid circuit device configured by connecting a plurality of fluid units for controlling or measuring a state of fluid using pipes and pipe joints and a holding mechanism for holding the fluid circuit device, wherein the holding mechanism includes a base member and the intermediate support body interposed between the fluid circuit device and the base member so as to couple the fluid circuit device and the base member, and wherein one end of the intermediate support body is attached to a respective pipe joint and the other end thereof is attached to the base member so that each of the pipe joints is connected to the base member.

Abstract: A coupling ring is provided, including a series of unit members with adjacent unit members rotatably coupled to each other, and a fastener coupling unit members on both ends to each other. A concave groove provided to extend circumferentially is externally fitted into an outer circumference of each of two opposing flanges. The unit members on the both ends are coupled to each other by the fastener to be turned into an annular state. The fastener is fastened to thereby press an inclined surface. The flanges are pressure-bonded to each other by forces generated during pressing. A stopper member is provided to restrict a separation angle between the unit member on one end and an adjacent unit member to fall within a certain angle in an open state in which the unit members on the both ends are not coupled to each other provided on at least one of the unit members.

Abstract: Engagement section 7a of holder 7 is engaged with a metal gasket 6, gasket 6 is received in tubular section 7b, and tubular section 7b is fitted in step 5a of connection pipe 1a. Then, another connection pipe 1b is placed close to and facing connection pipe 1a that holds gasket 6 through holder 7, and center ring 9 is installed surrounding the outer peripheries of flanges 2a, 2b. Subsequently, while a trapezoidal section having slopes 3a, 3b which define both sides is inserted into groove 14, segments 10a-10c are closed to form a ring shape. Bolt 11 which penetrates through cutout 12 of segment 10a is screwed into threaded hole 13 of segment 10c. The screwing of the bolt causes the amount of insertion of the trapezoidal section, which has slopes 3a, 3b which define both sides, into groove 14 to be increased. As a result, the distance between flanges 2a, 2b is reduced and the contact pressure of projections 4a, 4b against both sides of gasket 6 is increased.