A diaphragm valve (1) comprises: a valve box (10) which has a first flow path (11), a second flow path (12), and a valve seat (15); a lid body (20) which is attached by screwing to the valve box (10); a valve rod (30) which is screwed to the lid body (20) so as to be movable up and down, and which can be rotatably operated; a stem (40) which is connected to the valve rod (30) and has a screw shaft (42) aligned with the valve rod (30); a holder (50) which is screwed to the screw shaft (42), and which comes into contact with and separates from the valve seat (15) to open and close the connection between the first flow path (11) and the second flow path (12); and an annular diaphragm (60) through which the screw shaft (42) is inserted. The outer circumferential portion (61) of the diaphragm (60) is mechanically fastened and fixed between the valve box (10) and the lid body (20), and the inner circumferential portion (62) of the diaphragm (60) is mechanically fastened and fixed between the stem (40) and the holder (50).
F16K 7/12 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm
F16K 7/16 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being mechanically actuated, e.g. by screw-spindle or cam
In order to make it possible to ensure the axis alignment performance while reducing the processing cost, and to make a coupling structure compact to perform the coupling work and the detaching work of pipe members without difficulty even in a narrow work space, the coupling structure according to the invention includes a pipe coupling that couples a pair of pipe members each including a flange at an end portion in a state where the flanges of the pipe members face each other, an annular gasket interposed between the flanges of the pair of pipe members, and recesses formed individually in facing surfaces of the flanges facing each other, in which the annular gasket fitted into the respective recesses makes pipe axes of the pipe members and the annular gasket coincide with each other.
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
F16L 19/025 - Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
F16L 23/024 - Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
F16L 23/032 - Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
F16L 23/08 - Flanged joints the flanges being connected by members tensioned in the radial plane connection by tangentially arranged pin and nut
F16L 23/18 - Flanged joints characterised by the sealing means the sealing means being rings
To make it possible to remove pipe members that are connected together by moving the pipe members in a radial direction, for example, without moving the pipe members in an axial direction, a pipe joint comprises a series of unit members each of which is rotatably connected to the adjacent one another and a fastener for connecting the unit members locating at both ends. A pair of the pipe members take a centering posture or a posture equivalent to the centering posture by engaging the flange portion of a pair of the pipe members with both axial sides of the unit members. A pair of the pipe members are connected together in the centering posture by connecting the unit members locating at both ends using the fastener so as to make the unit members in an annular state and by fastening the fastener.
In order to provide an unprecedented new valve module that contributes to dramatic size reduction of a fluid control system, a valve module 100 that opens and closes a flow path through which a fluid flows comprises: an automatic opening/closing valve 40 that is switched between an open state and a closed state by a movement of a valve body 41 in response to the reception of power from a power source; and a manual operation unit 60 that is switched through a manual operation between a locked state R for pressing the valve body 41 to restrict the movement of the valve body 41 and an unlocked state UR for releasing the restriction to permit the movement of the valve body 41.
F16K 27/00 - Construction of housingsUse of materials therefor
F16K 31/143 - Operating meansReleasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a piston
F16K 35/02 - Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a push or pull
In order to achieve a dramatic downsizing of a fluid control system, there are provided a mass flow controller MFC, a pair of blocks 10, 20 that is bridged by the mass flow controller MFC and in which an internal flow path is formed, and a valve 50 that is attached to one of the pair of blocks 10, 20 and arranged on the inner flow path, wherein the valve 50 is attached to an opposing surface 11 of one block 10 that faces the other block 20 and arranged in a space bounded by the opposing surface 11 and a bottom surface BS of the mass flow controller MFC.
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 has an inner cavity into which a pipe is inserted, and one end part of the first sleeve comes into contact with a joint body. A second sleeve has a hole into which the pipe is inserted, and one end part of the second sleeve comes into contact with the other end part of the first sleeve. A nut covers one end part of the joint body, the first sleeve, and the second sleeve, and the nut is threaded onto the joint body in a state of pressing against the surface of the second sleeve on the side opposite from the first sleeve.
F16L 19/065 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
F16L 19/06 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
F16L 19/075 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends specially adapted for spigot-and-socket joints
F16L 19/08 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe
F16L 21/08 - Joints with sleeve or socket with additional locking means
The present invention can ensure alignment while suppressing a processing cost, and achieves a more compact coupling structure, to thereby allow coupling work and removal work for pipe members to be performed without much trouble even in a confined work space. For that purpose, the present invention comprises: a pipe joint 20 for coupling a pair of pipe members 10 each having a flange 12 at a distal portion thereof to each other with those flanges 12 facing each other; an annular gasket 30 interposed between the flanges 12 of the pair of pipe members 10; and a recessed portion 40 formed in each of the opposing surfaces of the flanges 12 that face each other, and is configured to cause the pipe axes of the pipe members 10 and the annular gasket 30 to agree with each other by having the annular gasket 30 fitted into the respective recessed portions 40.
F16L 23/02 - Flanged joints the flanges being connected by members tensioned axially
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
F16L 23/024 - Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
F16L 23/032 - Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
F16L 23/08 - Flanged joints the flanges being connected by members tensioned in the radial plane connection by tangentially arranged pin and nut
F16L 23/18 - Flanged joints characterised by the sealing means the sealing means being rings
In order to realize the maintenance of permanent airtightness without periodic additional tightening by causing a pipe joint to exhibit self-sealing function, this pipe joint comprises a joint body 10 in which an insertion port 10a of a tube T is formed, and a nut member 20 externally fitted with the joint body 10 along an insertion direction of the tube T. A free end 12 of the insertion port 10a is throttled by tightening the nut member 20.
F16L 19/04 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection
F16L 19/028 - Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall
F16L 33/22 - Arrangements for connecting hoses to rigid membersRigid hose-connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
Provided is a coupling structure which is less susceptible to be damaged even after long term use. A coupling structure (10) with which a hollow metal pipe member (1) is coupled to another member (2) comprises: a pipe member (1); a sleeve (6) that fits on the outer periphery of the pipe member (1) on the one end side; and a fixing mechanism that fixes the one end side of the pipe member (1) to the other member (2) via the sleeve (6). The one end side of the pipe member (1) is a large diameter section (1b), the large diameter section (1b) has a uniform outer diameter larger than a main section (1a) of the pipe member (1) and extends in a direction parallel to the longitudinal direction of the pipe member (1), and the leading end of the large diameter section (1b) is provided with a flare processed section (1c) having a larger diameter than the large diameter section (1b). The sleeve (6) is, at least on an end (6b) thereof opposite the one end side, in contact with the outer peripheral surface of the large diameter section (1b) of the pipe member (1) such that an elastic force is applied to the outer peripheral surface of the large diameter section (1b) of the pipe member (1).
F16L 19/028 - Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall
F16L 19/05 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection with a rigid pressure ring between the screwed member and the exterior of the flared pipe end
F16L 23/08 - Flanged joints the flanges being connected by members tensioned in the radial plane connection by tangentially arranged pin and nut
F16L 41/08 - Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe
To make it possible to remove pipe members connected together by moving the pipe members in a radial direction, for example, without moving the pipe members in an axial direction, a pipe joint (3) comprises: a series of unit members (31a-31c) of which adjacent unit members are rotatably connected to each other; and a fastener (32) for connecting the unit members (31a, 31c) at opposite ends. Flange parts (12) of a pair of pipe members (1) are engaged with both axial sides of the unit members (31a-31c), so that the pair of pipe members (1) are centered in a centered posture or an equivalent posture. The unit members (31a, 31c) at opposite ends are connected by the fastener (32) to form an annular state, and the fastener (32) is fastened whereby the pair of pipe members (1) are connected together in the centered posture.
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.
F16L 19/065 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
F16L 19/08 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe
The present invention is a seal member 3 which ensures sealing performance while reducing the occurrence of dirt and dust, and which is made up of an elastic material that is fitted onto a male threaded portion 2 that screws together with a female threaded portion 11 in a connection-receiving member 10 and that, due to the movement of a nut member 4 provided on the male threaded portion 2, undergoes elastic deformation between the connection-receiving member 10 and the nut member 4 and provides a seal therebetween. This seal member has an annular main body 31, and lip sections 32, which are provided on the inner circumferential surface 31a of the main body 31 and protrude radially inward. The lip portions 32 are provided at portions of the inner circumferential surface of the main body in the circumferential direction, and have a substantially triangular shape in a cross section along the axial direction.
A pipe joint in which a cylindrical male member is inserted into a cylindrical female member and the two members cannot come apart, wherein the pipe joint comprises: a cylindrical male member 10 in which a bottomed groove 111 extending along the circumferential direction of the outer peripheral surface is formed so as to facilitate machining of a mounting groove in which a seal member is mounted; a cylindrical female member 20 in which the cylindrical male member 10 is inserted and a slit 23 overlapping the bottomed groove 111 is formed; and a lock member 30 which has an elastically deformable open ring form fitted over the cylindrical female member 20, of which a part passes through the slit 23 and fits into the bottomed groove 111, and which renders the cylindrical male member 10 incapable of coming apart from the cylindrical female member 20, a mounting groove 113 being formed in the outer peripheral surface of the cylindrical male member 10, and a seal member S that creates a seal between the cylindrical male member 10 and the cylindrical female member 20 being mounted in the mounting groove 113.
F16L 37/088 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring
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.
F16L 19/08 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe
F16L 21/08 - Joints with sleeve or socket with additional locking means
15.
JOINING STRUCTURE, PIPE JOINT, AND METHOD FOR FORMING JOINING STRUCTURE
A joining structure that air-tightly or liquid-tightly joins an outer peripheral surface of a pipe member and an inner peripheral surface of a cylinder member mounted on the pipe member in order to join the pipe member and a pipe joint more firmly than in the past without using welding, wherein an annular protuberance formed on the inner peripheral surface of the cylinder member makes it impossible to separate the pipe member and the cylinder member.
F16L 19/08 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe
F16L 21/04 - Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings in which sealing rings are compressed by axially-movable members
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.
F16K 1/24 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with valve members that, on opening of the valve, are initially lifted from the seat and next are turned around an axis parallel to the seat
F16K 31/53 - Mechanical actuating means with toothed gearing
To change the direction of flow of a fluid and set the outflow direction thereof freely, this nozzle device (7) has: a flow path body that has flow path walls (6) and that allows flow or holds the fluid; and a nozzle unit (1) having a nozzle main body (3) that has a spherical surface on the outer periphery and wherein a fluid passage (3a) is formed internally, a holding mechanism for the nozzle main body (3), and securing members (4) for securing the holding mechanism to the flow path walls (6). The holding mechanism is constituted of a pair of thin plate members (2), each having a contact holding part (2b) for making contact with the spherical surface of the nozzle main body (3) and a flat part (2a), and rotatably holds the spherical surface with the nozzle main body (3) being sandwiched by the contact holding parts (2b) of the pair of thin plate members (2).
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. The accommodation space has a first clearance space for accommodating the ferrule therein and allowing the rising portion to rise so as to increase an angle of the rising portion with respect to the outer circumferential surface of the pipe.
F16L 19/10 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe the profile of the ring being altered
A valve (1) is provided with: a housing (2) in which a flow path is formed; a valve seat (4) provided in the inner surface of the housing in the middle position of the flow path; a valve body member (3) seated on/unseated from the valve seat (4) to open/close the flow path; and a stem (5) rotated about a first axis (O1) parallel to the opening surface of the valve seat (4) at a position separated from the valve seat (4), wherein a regulation hole (32C) and a regulation projection (71) which are slidably engaged with each other to constitute a cam mechanism are provided in the valve body member (3) and the stem (5), and the rotational range of the stem (5) includes a first rotational range of 0-30° in which the valve body member (3) moves in a direction substantially orthogonal to the opening surface of the valve seat (4) while the valve body member (3) is oriented to face the valve seat (4) by the cam mechanism, and a second rotation range of 30-120° in which the valve body member (3) rotates by 90° about the first axis (O1) of the stem (5) with the regulation hole (32C) and the regulation projection (71) integrated with each other.
F16K 1/24 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with valve members that, on opening of the valve, are initially lifted from the seat and next are turned around an axis parallel to the seat
06 - Common metals and ores; objects made of metal
Goods & Services
Metal materials for building or construction, namely, prefabricated building assembly kits of metal, loading and unloading pallets of metal, turn-tables for load handling, traversers for load handling, metal pulleys, springs and valves, not including machine elements, metal junctions for pipes, metal flanges, machine keys, cotter pins, railway points, liquid storage tanks or reservoirs of metal, industrial water storage tanks of metal, internal floating lids of aluminum for use with gas or liquefied gas storage tanks, gas storage tanks of metal, liquefied gas storage tanks of metal, anchors, anvils, swage blocks, metal hardware, namely, manually operated metal valves for tubes, pipes and hoses; metal valves not being parts of machines; metal gaskets, glands, ferrules and nuts for tubes, pipes and hoses; metal straight, elbow, tee and cross fittings for tubes, pipes and hoses; metal vacuum fittings for tubes, pipes and hoses; metal couplings for tubes, pipes and hoses; metal reducer fittings for tubes, pipes and hoses; metal adapter fittings for tubes, pipes and hoses; metal port connector fittings for tubes, pipes and hoses; metal quick disconnect fittings for tube, pipe and hose end connections; metal tubing; flexible metal tubing and hose; metal convoluted tubing; metal pipes used for gas distribution; metal seals for tubes, pipes and hoses; metal clamps for tubes, pipes and hoses; metal caps for tubes, pipes and hoses; metal plugs for tubes, pipes and hoses; metal compressed gas cylinders sold empty; metal cylinders for fluids sold empty; metal thermowells; metal manifolds for use with hydraulic and pneumatic systems, screws, tube couplings, valves and quick disconnect couplings for fluid lines, tube fittings, metal pipe couplings and joints, structural joint connectors of metal, wire ropes, wire nets and gauzes, industrial packaging containers of metal, metal stoppers for industrial packaging containers, metal lids and caps for industrial packaging containers, metal stepladders and ladders, water tanks of metal for household purposes, tool boxes of metal, empty, safes, metal joinery fittings
06 - Common metals and ores; objects made of metal
Goods & Services
Metal junctions for pipes; metal hardware, namely, manually operated metal valves for tubes, pipes and hoses; metal valves not being parts of machines; metal gaskets, glands, ferrules and nuts for tubes, pipes and hoses; metal straight, elbow, tee and cross fittings for tubes, pipes and hoses; metal vacuum fittings for tubes, pipes and hoses; metal couplings for tubes, pipes and hoses; metal reducer fittings for tubes, pipes and hoses; metal adapter fittings for tubes, pipes and hoses; metal port connector fittings for tubes, pipes and hoses; metal quick disconnect fittings for tube, pipe and hose end connections; metal tubing; flexible metal tubing and hose; metal convoluted tubing; metal pipes used for gas distribution; metal seals for tubes, pipes and hoses; metal clamps for tubes, pipes and hoses; metal caps for tubes, pipes and hoses; metal manifolds for use with hydraulic and pneumatic systems, screws, tube couplings, valves and quick disconnect couplings for fluid lines, tube fittings, metal pipe couplings and joints
23.
Fitting, ferrule, and ferrule manufacturing method
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. The accommodation space provides a clearance for accommodating the ferrule and allowing the rising portion to rise so as to increase an angle of the rising portion.
F16L 17/00 - Joints with packing adapted to sealing by fluid pressure
F16L 19/10 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe the profile of the ring being altered
A joint (10) connecting with a pipe (95) and having: a first member (11); a second member (12), which is screwed to the first member; and a ferrule (13) disposed in a housing space (15) formed by the inner peripheral surface of the first member, the inner peripheral surface of the second member, and the outer peripheral surface of the pipe. The ferrule comprises: a rising part (13c) including a first end part (13a); a pressed part (13d), located further toward the second end part (13b) than the rising part; and an intermediate part (13e) including a portion having a larger inner diameter than the first end part and the second end part, and connecting the rising part and the pressed part. The first member comprises a first tapered inner peripheral surface (11a), which is a tapered inner peripheral surface in contact with the first end part of the ferrule. The second member comprises a pressing part (12a), which presses at least a part of the pressed part of the ferrule. The housing space comprises a first allowance space (15a), which is capable of housing the ferrule and lifting the rising part so as to increase the angle with respect to the outer peripheral surface of the pipe.
F16L 19/08 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe
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.
F16L 19/02 - Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
F16K 7/16 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being mechanically actuated, e.g. by screw-spindle or cam
F16K 27/00 - Construction of housingsUse of materials therefor
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.
A method and a device for bending a metal hollow thick-walled member to a specified angle without deviation of the bending center position and without separation from a semi-die when an extrusion die moves up. With a pair of guide plates 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 semi-die (82a). When metal die holding members fixed 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 a specified angle and held on a semi-die (82b). When the center pin that can be moved vertically by a guide member moves down to a specified bending position, a contact portion (96b) contacts the inclined surface of a stopper (92b) to allow a base plate (16) to receive a pressurizing force from an upper die via the stopper.
B21D 7/06 - Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutmentsPliers with forming dies
B30B 1/10 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
An engagement section (7a) of a holder (7) is engaged with a metal gasket (6), the gasket (6) is received in a tubular section (7b), and the tubular section (7b) is fitted in a step section (5a) of a connection pipe (1a). Then, another connection pipe (1b) is placed close to and facing the connection pipe (1a) that holds the gasket (6) through the holder (7), and a center ring (9) is installed surrounding the outer peripheries of flanges (2a, 2b). Subsequently, while a trapezoidal section having slopes (3a, 3b) as opposite sides is inserted into a groove (14), segments (10a-10c) are closed to form a ring shape. A bolt (11) penetrated through a cutout (12) of the segment (10a) is screwed into a threaded hole (13) of the segment (10c). The screwing of the bolt causes the amount of insertion of the trapezoidal section, which has the slopes (3a, 3b) as opposite sides, into the groove (14) to be increased. As a result the distance between the flanges (2a, 2b) is reduced and contact pressure of projections (4a, 4b) against both sides of the gasket (6) is increased.
