Abstract: A hose with reinforcing threads, includes an inner wall forming a pipe wall; a plurality of coated conductive wires spirally wound with a predetermined pitch; a plurality of reinforcing threads disposed on outer surfaces of the inner wall and the coated conductive wires along a pipe axis direction with a suitable interval in a circumferential direction; and an outer wall formed at an outside of the reinforcing threads. The outer portions over the coated conductive wires protrude outward so that the outer surface of the hose is spirally corrugated. The outer wall is formed of a plurality of synthetic resin band materials spirally wound for every pitch of the coated conductive wires.

Abstract: A synthetic resin corrugated pipe includes a pipe wall having an annularly- or helically-shaped convex-concave surface. The convex-concave surface has a plurality of convex portions having a quadrangular cross-sectional shape and a plurality of concave portions having a circular cross-sectional shape.

Abstract: A pipe wall has an inner wall cylindrically formed of a soft material of rubber, synthetic rubber or synthetic resin, a rising rib bonded at its base portion onto an outer circumferential surface of the inner wall so as to extend therefrom in an outer circumferential direction, and an outer wall coupled at its base end portion with the rising rib so as to extend in an axial direction of the pipe in a position separated at a predetermined distance circumferentially from the inner wall, the rib and the outer wall being formed of a hard synthetic resin material and wound spirally, wherein only a top end portion of the outer wall is coupled with a preceding winding of the outer wall, and separable dividing portion is formed between the top end portion and the base end portion.

Abstract: A corrugated spiral pipe with a joint is formed by the steps of winding a seal material on thread portions of a pipe end of a spiral pipe, fitting a part of a cylindrical joint body to the pipe end so as to cover a portion on which the seal material has been wound, injecting a liquid foamable resin material through an injection hole and letting it foam, and filling a trough portion of the spiral pipe with the foamed resin material so as to make the spiral pipe watertight for coupling purposes. When the spiral pipe with the joint is coupled to another spiral pipe, a waterstop is forced into a trough portion of a pipe end portion of the latter pipe, an elastic seal ring is fitted onto an outer peripheral face of the latter pipe, and the pipe end of the latter pipe is forced into an outward protruded portion of the joint body.

Abstract: A hose with reinforcing threads, includes an inner wall forming a pipe wall; a plurality of coated conductive wires spirally wound with a predetermined pitch; a plurality of reinforcing threads disposed on outer surfaces of the inner wall and the coated conductive wires along a pipe axis direction with a suitable interval in a circumferential direction; and an outer wall formed at an outside of the reinforcing threads. The outer portions over the coated conductive wires protrud outward so that the outer surface of the hose is spirally corrugated. The outer wall is formed of a plurality of synthetic resin band materials spirally wound for every pitch of the coated conductive wires.

Abstract: A pressure-resistant helical corrugated pipe comprises a helical corrugated pipe wall formed by a top portion, opposite side wall portions and a bottom portion; and a continuous thin metal belt plate disposed at least in the top portion or the bottom portion and also in part or the whole of the opposite side wall portions. The metal belt plate serves as a constitent element for the pipe wall. A portion of the metal belt plate disposed at the top portion or the bottom portion has one or more reinforcement ribs and a connective portion for the metal belt plate is integrally formed of a synthetic resin material or rubber material.

Abstract: A cleaner hose includes a hose body, connection cylinders to be connected to a cleaner operating pipe and a cleaner body, respectively, which are connected to ends of the hose body, respectively, and a reinforcement wire material wound in the hose body spirally and continuously over the whole length of hose body. The reinforcement wire material is shaped like a steeply slanted spiral in a predetermined length portion near one of or both of the ends of the hose body so that adjacent spiral portions of the reinforcement wire material are close to each other while a hose wall of the hose body is loosened toward the inner circumferential surface. On the other hand, the reinforcement wire material is shaped like a gently slanted spiral in an intermediate portion except the one of or both of the ends of the hose body so that adjacent spiral portions of the reinforcement wire material are separated from each other in the direction of a pipe axis.

Abstract: The section of a main pipe wall made of synthetic resin material is formed to be substantially triangular and one inclined wall approaches the other inclined wall while the inclined wall goes over a center line passing through a top of both the inclined walls forming the main pipe wall and the approaching posture is capable of being maintained by itself. A second pipe wall, the wall thickness of which is smaller than that of the main pipe wall, is integrally connected with the inside of the pipe main wall, the section of the second pipe wall is substantially triangular, a bottom of the second pipe wall and predetermined portions of both the inclined walls at the bottom side adhere to a bottom of the main pipe wall and both the inclined walls, and a small space is formed between a top of the second pipe wall and the top of the main pipe wall.

Abstract: A pipe joint for connecting a corrugated spiral pipe includes an annular projection formed on the axially central portion, a spiral projection bonded on a portion on one side of this projection so as to engage with the spiral pipe, compressible and transformable ring-like sealing bodies bonded on the inner circumferential surfaces on the both sides of the spiral projection, and a small hole for injecting a hardening liquid agent and formed in a portion between the sealing bodies so as to penetrate the portion. A corrugated spiral pipe provided with a joint has the above mentioned joint fitted onto a pipe end of the spiral pipe, and is produced by filling a space portion between the ring-like sealing bodies with a hardened matter of a hardening liquid agent, so that the joint is water-tightly coupled with the pipe end of the spiral pipe.

Abstract: A pipe joint incldues joint main body having securing through holes respectively formed at positions spaced apart from the two ends of the joint main body by a given distance in the longitudinal direction thereof for securing hook portions, and a plurality of flange bodies each including hook portions respectively formed on one end side thereof to be inserted and secured to the respective securing holes and a flange portion formed on the other end side thereof and having a connecting hole.

Abstract: A corrugated pipe has a solid joint which is formed fixedly on an end portion of the pipe by polymerization and solidification of a reaction solution which polymerizes quickly at room temperature in such a manner that the joint has a first cylindrical portion which has a first predetermined length from the end of the pipe in the axial direction, or the first cylindrical portion and a second cylindrical portion which is elongated axially outwardly from the first cylindrical portion to a second predetermined length. The first or second cylindrical portion has a locking mechanism such as an annular groove or flange which is so formed as to detachably connect the joint to the joint (H) of another mating corrugated pipe.

Abstract: A cleaner hose with a built-in current conduction wire includes a reinforcing wire rod for holding strength and a conductive wire for current conduction, which are spirally wound in the inside of a hose body, and further includes a coated wire constituted by the reinforcing wire rod and the conductive wire built in the hose. The reinforcing wire rod and the conductive wire are separated at an interval and are integrally coated with a synthetic resin raw material at an interval. A coating portion of the reinforcing wire rod and a coating portion of the conductive wire are connected to each other through a thin connection portion which can be torn off, and only the coating portion of the reinforcing wire rod is connected through an adhesive to an inner surface of the hose body.

Abstract: A corrugated spiral pipe with a joint is formed by the steps of winding a seal material on thread portions of a pipe end of a spiral pipe, fitting a part of a cylindrical joint body to the pipe end so as to cover a portion on which the seal material has been wound, injecting a liquid foamable resin material through an injection hole and letting it foam, and filling a trough portion of the spiral pipe with the foamed resin material so as to make the spiral pipe watertight for coupling purposes. When the spiral pipe with the joint is coupled to another spiral pipe, a waterstop is forced into a trough portion of a pipe end portion of the latter pipe, an elastic seal ring is fitted onto an outer peripheral face of the latter pipe, and the pipe end of the latter pipe is forced into an outward protruded portion of the joint body.

Abstract: A pressure-withstanding synthetic resin pipe includes an inner wall of a synthetic resin and an outer wall of a synthetic resin. A metallic reinforcement belt plate having an inverted U-shaped sectional contour and a flat, metallic belt plate having ends bent to form engagement portions and adapted to be engaged with open end portions of the metallic reinforcement belt plate are disposed between the inner wall and a protruded corrugation portion of the outer wall.

Abstract: A pressure-resistant helical corrugated pipe comprises a helical corrugated pipe wall formed by a top portion, opposite side wall portions and a bottom portion; a wide metal belt plate of a thin metal plate disposed at least at the top portion and the opposite side wall portions; and a small width metal belt plate being separate from the wide metal belt plate and disposed at the top portion of the pipe wall in overlapping relation to the wide metal belt plate in the direction of the thickness of the pipe wall. The two metal belt plates are integrally connected together at an overlap portion by a synthetic resin material or a rubber material.

Abstract: A rigid polyvinyl chloride pipe comprises a strip member A that comprises a rigid polyvinyl chloride strip 1 with a U-shaped cross section consisting of an intermediate portion 1a of a predetermined width having a generally flat surface on at least one lateral side and two ribs 1b that extend from opposite sides of the intermediate portion 1a in a generally perpendicular direction with respect to the intermediate portion, with a layer of flexible synthetic resin 2 highly fusible to the rigid polyvinyl chloride resin being fused integrally to substantially the entire outer surface of the lateral side of both ribs 1b.

Abstract: A pressure-resistant helical corrugated pipe comprises a helical corrugated pipe wall formed by a top portion, opposite side wall portions and a bottom portion; and a continuous thin metal belt plate disposed at least in the top portion or the bottom portion and also in part or the whole of the opposite side wall portions. The metal belt plate serves as a constituent element for the pipe wall. A portion of the metal belt plate disposed at the top portion or the bottom portion has one or more reinforcement ribs and a connective portion for the metal belt plate is integrally formed of a synthetic resin material or rubber material.

Abstract: A hose continuous in series throughout an entire length integrally formed with a water-intake port, L-shaped bending part, an intermediate part and a drain port in this order from one end of the hose to the other. The substantially general part of the intermediate part is formed with corrugations having inclined side walls of unequal length which are constructed so that shorter inclined walls can be easily brought into their contracted positions substantially parallel to the longer inclined walls and they can self hold their positions. The hose has such a length that the substantially whole length thereof can be housed in an outer casing of a washing machine in its contracted state.

Abstract: A pressure-resistant helical corrugated pipe comprises a helical corrugated pipe wall; and two kinds of thin metal belt plates provided as a pipe wall-constituting element. The metal belt plates are disposed at least partially in overlapping relation in the direction of the thickness of the pipe wall. The overlapped portions of the metal belt plates are spaced from and held out of contact with each other by an intermediate resin layer, and the overlapped portions are integrally connected together by the intermediate resin layer.

Abstract: A pressure-resistant helical corrugated pipe comprises a helical corrugated pipe wall having a top portion, opposite side wall portions and a bottom portion; a continuous thin metal belt plate of a generally U-shaped transverse cross-section which is disposed in one of the top portion and the bottom portion and also in at least part of the opposite side wall portions extending from the one of the top portion and the bottom portion; another metal belt plate of a flat configuration being disposed in the other of the top portion and the bottom portion and disposed out of contact with the thin metal belt plate; and connective belt regions provided between the two metal belt plates in which the metal belt plates are absent, the connective belt regions being made of a synthetic resin or rubber to interconnect the two metal belt plates.