Abstract: A water pipe includes a pipe main body made of a synthetic resin and an annular metal inner piece inserted into an end of the pipe main body. The inner piece has its diameter increased from the inside of the pipe main body so as to increase the diameter of at least a part of that portion of the pipe main body which corresponds to the inner piece. The inner diameter of the inner piece the diameter of which has been increased is almost the same as that of a portion of the pipe main body which is not enlarged by the inner piece.

Abstract: A water pipe includes a pipe main body made of a synthetic resin and an annular metal inner piece inserted into an end of the pipe main body. The inner piece has its diameter increased from the inside of the pipe main body so as to increase the diameter of at least a part of that portion of the pipe main body which corresponds to the inner piece. The inner diameter of the inner piece the diameter of which has been increased is almost the same as that of a portion of the pipe main body which is not enlarged by the inner piece.

Abstract: A mounting body 100 in accordance with the invention is mounted to a bolt body from a side portion of the bolt body. The mounting body 100 is provided with a mounting portion 10 having an engagement portion 20 provided with an engagement projection 21 engaging with an outer thread of the bolt body, an opening portion 70 moving forward the bolt body into the engagement portion 20, and adjacent portions 30 arranged in a leading end side of the engagement portion 20. The mounting body 100 can be mounted to the bolt body by moving forward the bolt body from the opening portion 70 of the mounting portion 10, thereafter plastically deforming the engagement portion 20 so as to make the adjacent portions 30 relatively close to each other, arranging the engagement portion 20 along an outer surface of the bolt body, and maintaining a state in which the engagement projection 21 is engaged with the outer thread of the bolt body.

Abstract: A housing member for housing a long material includes a base and a cover. The base includes an opening extending along a longitudinal direction, and a plurality of convex portions arranged at predetermined pitches along a longitudinal direction. The cover covers the opening of the base. Each of the convex portions of the cover extends along a circumferential direction of the cover. The cover includes a plurality of convex portions provided at predetermined intervals along the longitudinal direction of the cover. The arranged pitch of the convex portions of the base and the arranged pitch of the convex portions of the cover are the same. When the cover is assembled to the base, the convex portion of the cover and the convex portion of the base are fitted to each other so as to overlay on each other.

Abstract: A water pipe includes a pipe main body made of a synthetic resin and an annular metal inner piece inserted into an end of the pipe main body. The inner piece has its diameter increased from the inside of the pipe main body so as to increase the diameter of at least a part of that portion of the pipe main body which corresponds to the inner piece. The inner diameter of the inner piece the diameter of which has been increased is almost the same as that of a portion of the pipe main body which is not enlarged by the inner piece.

Abstract: Spraying apparatus, designed especially for fire-fighting purposes, comprising at least one spray head (1) and one holder (2), in which the spray head can be moved between at least two positions, the spray head being in a retracted position when in an inactive state, and when it is in an active state, at least one of the nozzles of the spray head lies above the edges of the holder. The spray head (1) is disposed in a surface-mounted structural part (7) comprising at least one spray head holder (2) and means (8) for supplying a medium to be sprayed, such as an extinguishing medium, into the spray head.

Abstract: A mounting body 100 in accordance with the invention is mounted to a bolt body from a side portion of the bolt body. The mounting body 100 is provided with a mounting portion 10 having an engagement portion 20 provided with an engagement projection 21 engaging with an outer thread of the bolt body, an opening portion 70 moving forward the bolt body into the engagement portion 20, and adjacent portions 30 arranged in a leading end side of the engagement portion 20. The mounting body 100 can be mounted to the bolt body by moving forward the bolt body from the opening portion 70 of the mounting portion 10, thereafter plastically deforming the engagement portion 20 so as to make the adjacent portions 30 relatively close to each other, arranging the engagement portion 20 along an outer surface of the bolt body, and maintaining a state in which the engagement projection 21 is engaged with the outer thread of the bolt body.

Abstract: A conduit assembly for a partition for receiving wires, hoses, or cables. The conduit assembly includes passages and foaming material, which expands on the outer surface of the conduit assembly. The conduit assembly is arranged in a through hole, which is formed in the partition. The foaming material expands when heated, thus fixing the conduit assembly in the partition. The conduit assembly further includes spare passages. Detachable plugs close the spare passages. When adding more wires, hoses, or cables to the conduit assembly, the plugs are removed.

Abstract: A seal structure for sealing between a through hole and a conduit located in the through hole. The seal structure includes a conduit located in the through hole and a foaming material. A wire is inserted in the conduit. The foaming material is located between the outer surface of the conduit and the inner surface of the through hole. The foaming material expands when heated and seals the space between the outer surface of the conduit and the inner surface of the through hole. Both ends of the conduit are sealed with a fireproof material between the inner surface of the conduit and the outer surface of the wire.

Abstract: A cable laying method is disclosed, which facilitates an easy cable laying on a cable bed without damaging cables. The method comprises dragging a cable onto a cable drag route of a cable bed, and shifting the cable onto a cable housing provided adjacent the drag route.

Abstract: A conduit assembly for a partition for receiving wires, hoses, or cables. The conduit assembly includes passages and foaming material, which expands on the outer surface of the conduit assembly. The conduit assembly is arranged in a through hole, which is formed in the partition. The foaming material expands when heated, thus fixing the conduit assembly in the partition. The conduit assembly further includes spare passages. Detachable plugs close the spare passages. When adding more wires, hoses, or cables to the conduit assembly, the plugs are removed.

Abstract: A conduit assembly for a partition for receiving wires, hoses, or cables. The conduit assembly includes passages and foaming material, which expands on the outer surface of the conduit assembly. The conduit assembly is arranged in a through hole, which is formed in the partition. The foaming material expands when heated, thus fixing the conduit assembly in the partition. The conduit assembly further includes spare passages. Detachable plugs close the spare passages. When adding more wires, hoses, or cables to the conduit assembly, the plugs are removed.

Abstract: A seal structure for sealing between a through hole and a conduit located in the through hole. The seal structure includes a conduit located in the through hole and a foaming material. A wire is inserted in the conduit. The foaming material is located between the outer surface of the conduit and the inner surface of the through hole. The foaming material expands when heated and seals the space between the outer surface of the conduit and the inner surface of the through hole. Both ends of the conduit are sealed with a fireproof material between the inner surface of the conduit and the outer surface of the wire.

Abstract: An improved roller rung for a cable bed to reduce cable traction is disclosed. The roller rung comprises a holder rung having a groove, a plurality of roller drums and a plurality of partition panels. The partition panels are mounted in the groove from above or an end of the groove and securely engaged with the holder rung with panel engagement means. The roller drums turnably engage the partition panels and can rotate freely and independently on axial engagement means substantially above the groove or partially protruding from the groove. Cable weight is securely borne by the partition panels which are supported by the sturdy holder rung, thus the roller rung of the present invention can additionally provide an improved support of cable weight.

Abstract: A roller-support rung arrangement for a cable bed and a cable laying method utilizing the arrangement are disclosed. The cable bed has roller rungs and support rungs on which support blocks are to be mounted. Generally, the roller rungs are mounted on the side rails at a higher level than the support rungs so that a cable drawn onto the cable bed initially contacts only the roller rungs for easy drawing of the cable. Generally, the support blocks are provided on the support rungs after the cable is initially laid on the cable bed such that the support blocks can substantially support the cable weight.

Abstract: A connection structure capable of coping with thermal expansion and shrinkage of a cable/pipe bed is disclosed. There are also disclosed a connector panel (30) and a connector belt or wire (40) to be utilized in the connection structure. A cable/pipe bed which utilizes the present invention comprises a plurality of cable/pipe bed sections (10a, 10b) each comprising two side rails (20a, 20b) and a floor (51, 52). Each side rail comprises an outer engagement protrusion or protrusions (21) to engage an inner engagement protrusion or protrusions (31) of the connector panel (30). The connector panel (30) holds two such side rails (20a, 20b) in longitudinal alignment, one (20a) securely and the other (20b) slidably to cope with thermal expansion and shrinkage of the side rails. Accidental separation of the side rails (20a, 20b) is adequately prevented by use of the connector belt or wire (40).

Abstract: Cable laying apparatuses are disclosed, each comprising a plurality of cable racks and fasteners. A cable rack is provided with at least one longitudinally and horizontally extending hook portion. A fastener is provided with at least one longitudinally and horizontally extending hook portion and a plurality of threaded through screw holes. Cable racks and fasteners used in a cable laying apparatus have corresponding hook portions so that the hook portions of the cable racks and those of the fasteners properly engage with each other. Threaded through screw holes may be provided in a direction other than the direction of the openings of the hook portions of fasteners so that the engagement between the hook portions of the fasteners and the hook portions of corresponding cable racks may be more secure in two directions as the screws having a flat bottom in the screw holes are screwed and press the cable racks.

Abstract: A traveler rung for a cable bed for laying cables and/or pipes and a cable bed incorporating the traveler rung are disclosed. The cable bed includes two elongated panels each having a lower shelf extending inward. The traveler rung is received on the lower shelf of the cable bed. The traveler rung includes a housing body having an elongated groove. A plurality of roller drums are received within the groove and rotate freely. The groove includes a longitudinal opening at its upper portion so that the roller drums are partially exposed. The cable or pipes contact the exposed portions of the roller drums.

Abstract: A suspension device of this invention is used to carry a linear material over a cradle receiver and release the linear material onto the receiver, comprising a suspension means, a release means and an activation means. The suspension means suspends a linear material, the release means releases the linear material and the activation means activates the release means so that the suspended linear material can be released onto the cradle receiver. The device is particularly useful when the receiver is long and/or windingly. A laying apparatus of the invention chiefly comprises such suspension devices and a rail means prepared above a cradle receiver on which the suspension devices are to be movably held.

Abstract: A method for laying a cable and/or a hose or a plurality thereof into a channel buried in a wall or the ground or laid outdoors, said channel comprising a chute with a slit provided longitudinally therethrough which is to receive a pilot line device to be used to lay a cable or a hose through the channel route of the channel. And a channel to be utilized by said method.