摘要:
Each of the semi-circular coupling segments has pipe fastening parts. One pipe fastening part has a protrusion to be in contact with the side surface of the circumferential groove of one pipe nearer to the end of the pipe in one of the end sections thereof with respect to a circumferential direction, and a protrusion to be in contact with the side surface of the circumferential groove of the pipe farther from the end of the pipe in the other end section thereof with respect to the circumferential direction. The other pipe fastening part has a protrusion to be in contact with the side surface of the circumferential groove of the pipe farther from the end of the pipe in one of the end sections thereof with respect to the circumferential direction, and a protrusion to be in contact with the side surface of the circumferential groove of the pipe nearer to the end of the pipe in the other end section thereof with respect to the circumferential direction.
摘要:
An insulator includes a step portion in a region where a sealing material support portion of a first division part comes into contact with a sealing material support portion of a second division part.
摘要:
In order to reliably form a coating layer on the interior surface of a primary lining such as an underground pipe, etc., in a short time and form a coating layer having a uniform thickness, a spray gun 62 is attached to a revolving ring 30 attached to a running truck 2, right and left drive wheels of the running truck 2 are respectively independently driven and controlled to moving the running truck 2 in a primary lining 90 while the revolving ring 30 is rotated at a steady peripheral velocity to blow out a coating material from the spray gun 62, whereby a homogenous coating layer is formed with a fixed thickness on the interior surface of the primary lining 90.
摘要:
An electrically remote-controlled intra-pipe work vehicle is hydraulically actuated and is adapted to work with a lining equipment for lining interior of a branch pipe interconnecting with the main pipe in which the vehicle is positioned. The vehicle has a self-clamping mechanism to securely anchor itself at a work site in the main pipe and a tool actuating mechanism for angularly positioning and actuating the lining equipment. The lining equipment includes a lining material anchoring hydraulic press for pressingly hold an end flange of a tubular lining material, which is made of a fabric impregnated with a thermosetting synthetic resin, by an arcuate pressing plate. A counter hydraulic press counteracts the pressing force of the lining material anchoring press. A sealing tube having an electric heater element imbedded therein is sealedly bonded to an end of the tubular lining material with a bonding agent having a low melting temperature. The lining material is forced into the branch pipe by a pressurized fluid and pressed against the inside wall of the branch pipe. Then, the lining material is heated by a heated pressurized fluid to be set hardened. Subsequently, electric current is provided to the heater element in the sealing tube so that the bonding agent is melted and the sealing tube is separated from the lining material.
摘要:
A flexible expansion joint is capable coping with a great extension for its limited length. The flexible expansion joint includes: a first sleeve to be put on an end part of a first pipe; an outer sleeve to be put on an end part of a second pipe so as to overlap the first sleeve and capable of moving axially relative to the first sleeve; a first sealing member; a second sealing member; a third sealing member; a first length limiter including a first stopper for limiting the axial movement of the first pipe and the first sleeve relative to each other; and a second length limiter including a second stopper for limiting the axial movement of the second pipe the outer sleeve relative to each other.
摘要:
A vehicular air conditioner includes a housing having a rear seat discharge passage for supplying mixed air to rear seats in a vehicle and a plurality of dividing ribs disposed in a face outlet which is open upwardly in the housing. Each of the dividing ribs has a communication path defined therein in the longitudinal direction thereof, the communication path being concave in confronting relation to the interior of the housing. Mixed air produced in a mixing portion in the housing is supplied from the face outlet to front seats in the vehicle. Part of the mixed air is supplied through the communication paths to the rear seat discharge passage, from which the mixed air is supplied to the rear seats.
摘要:
The present invention relates to ruthenium complex compound wherein a heteroatom-containing carbene compound having a six-membered ring structure is bonded to ruthenium and a process for the preparation thereof; a process for producing ring-opened cyclic olefin polymer by subjecting a cyclic olefin to ring-opening metathesis polymerization in the presence of such a ruthenium complex compound; and a process for producing hydrogenated product of ring-opened cyclic olefin polymers by hydrogenating the carbon-carbon double bonds of the above ring-opened polymers. The invention gives hydrogenated product of ring-opened cyclic olefin polymers having physical properties different from those of hydrogenated product of ring-opened polymers of the prior art. Particularly, the use of dicyclopentadiene can give a hydrogenated product of ring-opened cyclic olefin polymer excellent in heat resistance, and this product can be advantageously used as parts or formed products for medical appliances or electrical components.
摘要:
Each of the circular coupling segments 20 has pipe fastening parts 24, 25. One pipe fastening part 24 has a protrusion 26 to be in contact with the side surface 3a of the circumferential groove 3 of one pipe 4 nearer to the end of the pipe 4 in one of the end sections thereof with respect to a circumferential direction, and a protrusion 27 to be in contact with the side surface 3b of the circumferential groove 3 of the pipe 4 farther from the end of the pipe 4 in the other end section thereof with respect to the circumferential direction. The other pipe fastening part 25 has a protrusion 28 to be in contact with the side surface 3b of the circumferential groove 3 of the pipe 5 farther from the end of the pipe 5 in one of the end sections thereof with respect to the circumferential direction, and a protrusion 29 to be in contact with the side surface 3a of the circumferential groove 3 of the pipe 5 nearer to the end of the pipe 5 in the other end section thereof with respect to the circumferential direction.
摘要:
An air conditioner for a vehicle includes: an air-blowing guide that includes a flexible connecting section that elastically deforms, and a pair of engaging sections that are arranged at both ends of the flexible connecting section, is arranged in a mixing region of a hot air and a cool air, and guides the hot air and the cool air; and a case that includes a protrusion that engages the engaging section in a state where the flexible connecting section is elastically deformed, the case in which the air-blowing guide is provided.
摘要:
Provided is a housing type pipe joint to enable the confirmation of an appropriate fastening degree of a joint and reduce a load of a fastening work. The housing-type pipe joint includes a pair of joint segments, an elastic seal ring, and a fastening means fastening the pair of joint segments, in which the joint segments each have an arc portion, flange portions extending from both ends of the arc portion, a concave groove formed in an inner peripheral surface of the arc portion to have the elastic seal ring fit therein, and in which the fastening means makes the flanges of the both joint segments approach each other to make the arc portions bend so that radii of curvature of the arc portions become smaller, and when, as a result of the bending, peripheral edges of the arc portions match outer surfaces of the pipes that are to be coupled, the coupling of the pipes is completed, the housing-type pipe joint including marks on the peripheral edge regions of the arc portions, wherein, when the peripheral edges of the arc portions corresponding to the marks come into contact with the outer surfaces of the pipes, the coupling of the pipes is completed.