CN101896754B

CN101896754B - Metal-like hose

Info

Publication number: CN101896754B
Application number: CN200880119987.1A
Authority: CN
Inventors: 广濑克仁
Original assignee: FITT TOYOX Co Ltd
Current assignee: FITT TOYOX Co Ltd
Priority date: 2007-12-28
Filing date: 2008-11-18
Publication date: 2012-10-31
Anticipated expiration: 2028-11-18
Also published as: HK1149065A1; CN101896754A; JP4481364B2; WO2009084339A1; JPWO2009084339A1

Abstract

Appearance is improved while preventing intrusion of water into a hose and breaking or cutting of a tubular layer. At the spiral portion of a tubular layer (3) facing the exposed spiral outer surface (1a) of a hose body (1), a recess (3a) is formed to bend toward the hose body (1), the inner surface (3b) of the recess is made to adhere to the exposed spiral outer surface (1a) of a hose body (1), and the laminated portion (3c) of the tubular layer (3) laminated on a reinforcement (2) is formed to become thinner from the center part in the axial direction of the hose toward the opposite ends (3d) thereof. Consequently, the recess (3a) of the tubular layer (3) and the exposed spiral outer surface (1a) of the hose body (1) are integrated with no gap, and the strip material (2a) of the reinforcement (2) is viewed three-dimensionally through convex lens action of the laminated portion (3c) which is bulging to have a substantially arcuate section.

Description

Metal-like hose

Technical field

The present invention relates to a kind ofly for example using like the how wet place of high temperature such as bathroom and its main body is sent out the metal-like hose of metal light as synthetic resin system and outward appearance as shower hose.

In more detail, relate to that a kind of intensive aspect with strip material of the light of sending out metallochrome is vacated at interval and helical coil is around in the outside of flexible pipe body and wholely in its outside adheres to transparent or semitransparent tubular layer and be made as the metal-like hose that can have an X-rayed the metallochrome of above-mentioned strip material from the outside.

Background technique

Past; As this metal-like hose following technology is arranged: along the surface of flexible pipe body; Axially twine the ornamental strip metal layer of the light of sending out metallochrome with helical to flexible pipe; This decoration disposes with the vacating the gap each other of metal layer, makes transparent or semitransparent protective layer be close to the surface of above-mentioned flexible pipe body respectively and decorates the lamination (for example, with reference to patent documentation 1) with the outside of metal layer.

Patent documentation 1: No. 3134233 communique of japanese granted model utility (3-4 page or leaf, Fig. 1-4)

Yet; In the metal-like hose in this past; Leave spiral helicine gap each other with metal layer (intensive aspect) decorating; Therefore there is the worry in this gap of water intrusion, thus, has following problem: have transparent or semitransparent protective layer (tubular layer) devitrification and the obvious possibility that descends of commodity value.

In addition, in the spiral helicine gap that produces each other of above-mentioned tubular layer and intensive aspect, what is not all bonding for tubular layer, becomes free state, therefore also exists if the hose bending distortion then divides the drawback that bends easily or fracture in the free section of this tubular layer.

And; At the decoration of the light of sending out metallochrome with the smooth tubular layer of strip metal layer (strip material) laminated; Therefore also there is following problem:, diminish outward appearance even see through the metallochrome of this tubular layer perspective decorative from the outside with the also only visible smooth band shape of metal layer.

Summary of the invention

The purpose of the 1st among the present invention invention is, anti-sealing is to the bending of inner intrusion of flexible pipe and tubular layer or fracture, and improves outward appearance.

The purpose of the 2nd invention is, except the purpose of the 1st invention, easily with simple processing the helical exposing surface of flexible pipe body is close to tubular layer.

The purpose of the 3rd invention is that except the purpose of the 1st invention or the 2nd invention, the strip material of simply and equably making intensive aspect seems to have relief flexible pipe.

The purpose of the 4th invention is, except the purpose of the 1st invention, the 2nd invention or the 3rd invention, when the outer surface crimping cylinder of flexible pipe, makes this cylinder seamlessly be close to the outer surface of flexible pipe.

In order to realize said purpose; Among the present invention the 1st invention is characterised in that; Partly form towards the crooked concavity portion of flexible pipe body in helical with the opposed tubular layer of helical exposing surface of flexible pipe body; Its inner face is close to the helical exposing surface of this flexible pipe body, and the lamination portion that will be laminated to the tubular layer on the intensive aspect forms from the shape of the axial middle body of its flexible pipe towards two end portions 3d attenuation.

The 2nd invention is characterised in that, adds following structure in the structure of the 1st invention: the opposed bi-side that said intensive aspect formed intensive aspect become shape in a narrow margin towards the lamination portion of tubular layer.

The 3rd invention is characterised in that the structure of inventing in the 1st invention or the 2nd adds following structure: form protrusion above with said intensive aspect and be the circular-arc shape of section.

The 4th invention is characterised in that, adds following structure in the structure of the 1st invention, the 2nd invention or the 3rd invention: the periphery of concavity portion and lamination portion through the said tubular layer of undergauge, thereby lamination portion resiliently deformable and becoming with one side with the surface of concavity portion.

Among the present invention the 1st invention is through partly forming towards the crooked concavity portion of flexible pipe body in the helical with the opposed tubular layer of helical exposing surface of flexible pipe body; The helical exposing surface of its inner face being close to this flexible pipe body; And the lamination portion that will be laminated to the tubular layer on the intensive aspect forms from the shape of the axial middle body of its flexible pipe towards two end portions 3d attenuation; Thereby becoming one seamlessly between the helical exposing surface of the concavity portion of tubular layer and flexible pipe body; And by being the convex lens effect of the roughly circular-arc lamination portion of section through protrusion, the strip material of intensive aspect it seems to have stereoscopic impression from the outside.

Thus, can prevent that sealing is to the bending of inner intrusion of flexible pipe and tubular layer or fracture and improve outward appearance.

Its result, with the past compared with techniques that leaves spiral helicine gap each other at intensive aspect, the life-span is long and outward appearance is excellent, and can not make degraded appearance and use chronically, seeks the raising of commodity value.

The 2nd invention is except the effect of the 1st invention; Opposed bi-side through intensive aspect being formed intensive aspect become shape in a narrow margin towards the lamination portion of tubular layer; Thereby the angle part by the side of the helical exposing surface of flexible pipe body and intensive aspect constitutes becomes the obtuse angle and only adheres to tubular layer above that, and the curved part of tubular layer just can be close to this angle part fully.

Thus, can more easily be close to tubular layer to the helical exposing surface of flexible pipe body with simple processing.

Its result, manufacturing is simple and can prevent fully that sealing to the inner intrusion of flexible pipe, produces feeling of high class.

The 3rd invention through with being made as protrusion above the intensive aspect for the circular-arc shape of section, thereby only adheres to tubular layer above it except the effect of the 1st invention or the 2nd invention, it is the circular-arc shape of section that the lamination portion of tubular layer just can become protrusion.

The strip material of thus, can be simply and making intensive aspect equably seems to have relief flexible pipe.

Its result can realize seeing through the convex lens effect of lamination portion equably.

The 4th invention is except the effect of the 1st invention, the 2nd invention or the 3rd invention; The periphery of concavity portion and lamination portion through the undergauge tubular layer; Thereby lamination portion resiliently deformable and becoming with one side, thereby spread all over full week and compress the outer circumferential face of concavity portion and lamination portion respectively equably with the surface of concavity portion.

Thus, when the outer surface crimping cylinder of flexible pipe, can seamlessly be close to the outer surface of flexible pipe.

Its result covers on the periphery of flexible pipe with sleeve, makes this sleeve shrinking diameter and makes the inner peripheral surface of flexible pipe be close to the outer circumferential face of joint; Or tighten the flexible pipe bands such as flat rubber belting of the periphery that is disposed at flexible pipe; Even thereby the inner peripheral surface of flexible pipe is close to the outer circumferential face of joint, when the interior pressure through the fluid in the flexible pipe uprised, leakage or the flexible pipe that fluid do not take place yet came off and is safer; Need not use the special hose band of high price in addition, so less expensive.

Description of drawings

Fig. 1 of Fig. 1 (a) is an embodiment's of an expression metal-like hose of the present invention partial cross-sectional perspective view; Fig. 1 (b) is the local amplification view at the shown position of 1A of Fig. 1 (a), and Fig. 1 (c) is the local amplification view at the shown position of 1B of Fig. 1 (a).

Fig. 2 of Fig. 2 (a) is another embodiment's of an expression metal-like hose of the present invention partial cross-sectional perspective view; Fig. 2 (b) is the local amplification view at the shown position of 2A of Fig. 2 (a), and Fig. 2 (c) is the local amplification view at the shown position of 2B of Fig. 2 (a).

Fig. 3 of Fig. 3 (a) is the another embodiment's of an expression metal-like hose of the present invention partial cross-sectional perspective view; Fig. 3 (b) is the local amplification view at the shown position of 3A of Fig. 3 (a), and Fig. 3 (c) is the local amplification view at the shown position of 3B of Fig. 3 (a).

Fig. 4 of Fig. 4 (a) is an embodiment the partial cross-sectional perspective view again of expression metal-like hose of the present invention; Fig. 4 (b) is the local amplification view at the shown position of 4A of Fig. 4 (a), and Fig. 4 (c) is the local amplification view at the shown position of 4B of Fig. 4 (a).

Label declaration

The A-metal-like hose, 1-flexible pipe body, 1a-helical exposing surface, 1b-reinforced wire, 1c-internal layer; 1d-is outer, the 1e-innermost layer, and the 2-intensive aspect, the 2a-strip material, 2b-strengthens body; The 2c-overlay film, 2d-corner part, the 2e-side, above the 2f-, the 3-tubular layer; The 3a-curved part, 3b-inner face, 3c-lamination portion, 3d-two end portions, 4-angle part

Embodiment

Like Fig. 1～shown in Figure 4; The mode of execution of metal-like hose A of the present invention comprises: have flexual flexible pipe body 1, the surface adds intensive aspect 2 and the transparent or semitransparent tubular layer 3 of the strip material 2a of the light of sending out metallochrome at least; Outside along this flexible pipe body 1; Above-mentioned intensive aspect 2 is wound in helical towards the flexible pipe axle direction with predetermined interval; Afterwards, through making tubular layer 3 be close to the helical exposing surface 1a of these flexible pipe bodies 1 respectively and outstandingly thus be the outside lamination of spiral helicine intensive aspect 2 and becoming one respectively, thus the metallochrome that can have an X-rayed strip material 2a from the outside through this tubular layer 3.

Above-mentioned flexible pipe body 1 for example is shaped to cylindric by vinyl chloride resin or carbamate resinoid or soft synthetic resin similar with these etc.; Showy for the metallochrome of the strip material 2a that states after making, be made as to the major general surface preferably that for example black etc. is opaque coloured.

Preferably bury many reinforced wire 1b underground with netted in the inside of above-mentioned flexible pipe body 1.

As this reinforced wire 1b, for example use resin fibres such as polyester or nylon or aromatic polyamide or woven thinner monofilament (monofilament: monofilament such as multifilament ultimate fibre) or olefin resin or polyester resin.

Bury example underground as it, preferably this reinforced wire 1b is twined with helical and is made as nettedly along the outer circumferential face of the internal layer 1c of this flexible pipe body 1, or be woven into columnar nettedly by braided fabric braiding etc.,, make these integrated at the outer 1d of its outside lamination.

Especially, when using monofilament,, can improve the whole shape retention ability of flexible pipe because of the rigid hose body 1 of monofilament is difficult for damaging by pressure as this reinforced wire 1b.

In addition; Except above-mentioned reinforced wire 1b; For example also can bury underground by wire such as the wire rod of thicker monofilament hard resin systems such as (prolongation monofilament) or stainless steel or the similar coil (not shown) that constitutes of hard material with it, also can replace above-mentioned reinforced wire 1b and this coil buried underground be helical with helical.

Above-mentioned intensive aspect 2 comprises: strip material 2a, the reinforcement body 2b that is laminated to its radially inner side and the covering that the light of metallochrome is sent out on its surface is formed at the overlay film 2c around these.

Above-mentioned strip material 2a for example by metallic foil such as aluminium foil or stainless steel foil or with it similarly at least the surface material of sending out the light of metallochrome form film like or lamellar.

Above-mentioned reinforcement body 2b for example forms section essentially rectangular shape by nylon or polypropylene or hard or the semi-rigid synthetic resin similar with it; Through it being wound in above-mentioned flexible pipe body 1; Thereby seek lightweight; And give rigidity and shape retention to flexible pipe, prevent whole the damaging by pressure or local depression of flexible pipe.

Above-mentioned reinforcement body 2b for above-mentioned flexible pipe body 1 and after during the material of the tubular layer 3 non-cementabilities stated; In order to make the two binding; The good synthetic resin of material cementability of above-mentioned overlay film 2c conduct and this flexible pipe body 1 and tubular layer 3; Will the transparent soft synthetic resins such as for example vinyl chloride resin identical cover with flexible pipe body 1 be formed at above-mentioned strip material 2a and strengthen body 2b around, and through the bonding and binding integratedly of the outer circumferential face that makes this overlay film 2c and flexible pipe body 1.

Thus, it is not bonding with overlay film 2c to strengthen body 2b, therefore follows the bending of flexible pipe, reinforcement body 2b displacement and improve pliability.

And above-mentioned reinforcement body 2b when having the material of cementability with flexible pipe body 1 and tubular layer 3, also can omit above-mentioned overlay film 2c.

Above-mentioned tubular layer 3 is by transparent or semitransparent soft synthetic resin, at length be made up of the polycarbonate-based polyurethane resin (Miractran (TM trade mark) XN-2001:NipponPolyurethane Industry manufactured etc.) of vinyl chloride resin or light fastness excellence and the mechanical strength no xanthochromia type more excellent than vinyl chloride resin or the polycarbonate-based polyurethane resin of difficult xanthochromia type, formed cylindric by extruding and moulding etc.

And; When spreading all over the helical exposing surface 1a that is exposed to the flexible pipe body 1 between the above-mentioned intensive aspect 2 and outstanding thus outside lamination tubular layer 3, between the helical exposing surface 1a of this flexible pipe body 1 and this tubular layer 3, there is spiral helicine gap for spiral helicine intensive aspect 2.

Therefore; After operation in; Partly form the 3a of concavity portion in non-bonding helical towards said flexible pipe body 1 bending across the opposed tubular layer 3 of the helical exposing surface 1a of spiral helicine gap and this flexible pipe body 1; Thereby the inner face 3b that makes the 3a of this concavity portion is close to the helical exposing surface 1a of this flexible pipe body 1, and the 3c of lamination portion that will between the 3a of these concavity portions, be laminated to the above-mentioned tubular layer 3 on the above-mentioned intensive aspect 2 forms from the shape of the axial middle body of its flexible pipe towards the axial two end portions 3d attenuation of flexible pipe.

At length; The axial middle body of flexible pipe of the 3c of lamination portion is protruded to radial outside the most; Axially form the flat of width dimension with same radially flexible pipe at this middle body; Form from this flat towards two end portions 3d attenuation gradually, make each 3c of lamination portion protrusion, or do not form flat at the axial middle body of flexible pipe of the 3c of lamination portion for section is roughly circular-arc on the whole; Form from this middle body towards two end portions 3d attenuation gradually, make each laminated portion 3c protrusion for section is circular-arc on the whole.

As its production method; The outside that preferably spreads all over the helical exposing surface 1a and the above-mentioned intensive aspect 2 of above-mentioned flexible pipe body 1; Carry out the extruding and moulding soft synthetic resin and wait lamination tubular layer 3 integratedly; And the helical exposing surface 1a that remains in these flexible pipe bodies 1 and the air between the tubular layer 3 are attracted and decompression etc.; Make the non-bonding helical inner face 3b of this tubular layer 3 be close to this helical exposing surface 1a, thereby form the spiral helicine concavity 3a of portion in the outside of this tubular layer 3.

And; Replacement attracts the helical exposing surface 1a that remains in flexible pipe body 1 and the air between the tubular layer 3 and reduces pressure; For example also can be by pressure from the outside according to air or water or other fluid, the non-bonding helical inner face 3b of tubular layer 3 is close to helical exposing surface 1a.

Below, according to the description of drawings various embodiments of the present invention.

Embodiment 1

Shown in Fig. 1 (a)～(c); The following situation of this embodiment's 1 expression: as said intensive aspect 2; The overlay film that the section shape of its overlay film 2c is formed essentially rectangular is wound in the outside that helically is wrapped in said flexible pipe body 1; By extruding and moulding tubular layer 3 is laminated to its outside; And make the non-bonding helical inner face 3b of this tubular layer 3 be close to the helical exposing surface 1a of flexible pipe body 1 and form the 3a of concavity portion, and the 3c of lamination portion of this tubular layer 3 forms in the axial central authorities of its flexible pipe have the flat of width dimension and the section of attenuation is roughly circular-arc gradually towards two end portions 3d from this flat.

Example as its production method; Make flexible pipe body 1 and extrusion shaping machine (not shown) towards the axial relativity of flexible pipe move; Is cylindric and after the lamination tubular layer 3 with soft synthetic resin from this extrusion shaping machine extrusion modling; Decompression or the non-bonding helical part that makes this tubular layer 3 by the pressure from the outside are towards 1 bending deflection of flexible pipe body between helical exposing surface 1a through making these flexible pipe bodies 1 and the tubular layer 3; Thereby form the concavity 3a of portion, make its inner face 3b be close to the helical exposing surface 1a of flexible pipe body 1.

Shown in Fig. 1 (b); Even the overlay film 2c extruding and moulding of above-mentioned intensive aspect 2 is the section rectangle; But the material by this overlay film 2c is the flowability of soft synthetic resin, its 2d of corner portion flow deformation and to be bent into section roughly circular-arc, and whole section shape becomes essentially rectangular.

At this moment; Shown in Fig. 1 (c); Force the above-mentioned cylindrical portion 3 of bending deflection to form the 3a of concavity portion; Make its inner face 3b be close to the helical exposing surface 1a of flexible pipe body 1, thereby by the flowability of this tubular layer 3, the two end portions 3d flow deformation of the 3c of lamination portion of this tubular layer 3 that especially contacts with the 2d of corner portion at the axial two ends of flexible pipe of above-mentioned intensive aspect 2.

Thus, the section shape of each 3c of lamination portion become the axial central authorities of its flexible pipe flat is arranged and from this towards two end portions 3d gradually attenuation, protrusion is for the roughly circular-arc shape of section.

And, also can be by a plurality of layers of internal layer 1c that constitute said flexible pipe body 1.

In illustrated example, the innermost layer 1e that constitutes by the material that is fit to the character through the fluid in this flexible pipe body 1 of lamination integratedly in the inboard of the internal layer 1c that constitutes by the good synthetic resin of overlay film 2c cementability with above-mentioned intensive aspect 2.

In addition, in illustrated example,, not only many resin fibres or multifilament etc. are wound in helical and make its intersection by predetermined interval,, also circumferentially press many of predetermined interval configurations in the axial court of said flexible pipe body 1 except these as above-mentioned reinforced wire 1b.

Secondly, the action effect to such metal-like hose A describes.

Shown in Fig. 1 (a) and Fig. 1 (c); At first; Make non-bonding helical part with the opposed tubular layer 3 of helical exposing surface 1a of above-mentioned flexible pipe body 1 towards the flexible pipe body 1 bending deflection formation concavity 3a of portion; Make its inner face 3b be close to the helical exposing surface 1a of flexible pipe body 1, thus very close to each other between the helical exposing surface 1a of the 3a of concavity portion of these tubular layer 3 and flexible pipe body 1.

Thus; Can prevent intrusion to the water of the inside of flexible pipe body 1; And whole tubular layer 3 all is close to the helical exposing surface 1a of flexible pipe body 1 and the overlay film 2c of intensive aspect 2, disappears with flexible pipe body 1 or intensive aspect 2 non-bonding free parts, therefore; Bending deflection through flexible pipe body 1 etc. can prevent these tubular layer 3 bendings or follow fractureing of this.

In addition, meanwhile, the 3c of lamination portion of above-mentioned tubular layer 3 forms protrusion and is the roughly circular-arc shape of section, therefore sees through the strip material 2a of protrusion for the roughly circular-arc visible above-mentioned intensive aspect 2 of the 3c of lamination portion of section.

Thus, protrude for the roughly circular-arc 3c of lamination portion of section becomes convex lens, the strip material 2a of above-mentioned intensive aspect 2 it seems to have stereoscopic impression from the outside, and outward appearance is excellent.

Especially; At the width dimensions of the strip material 2a that widens intensive aspect 2 and constriction when being disposed at the width dimensions of the 3a of concavity portion of tubular layer 3 therebetween; There is not the part of strip material 2a to become unshowy; Therefore, the integral body of such metal-like hose A looks like the metallic band plate is wound in helical and the metallic flexible pipe that constitutes, and the advantage that can obtain weight sense and feeling of high class is arranged.

Embodiment 2

Shown in Fig. 2 (a)～(c); This embodiment 2 is with the difference of said embodiment's 1 shown in Figure 1 structure: the opposed bi-side 2e that said intensive aspect 2 is formed its overlay film 2c is towards becoming shape in a narrow margin at the 3c of lamination portion of the above-mentioned tubular layer 3 of lamination thereafter, and structure in addition is identical with embodiment illustrated in fig. 11.

Shown in Fig. 2 (b), in following situation shown in the illustrated example: the section shape of above-mentioned intensive aspect 2 is the opposed bi-side 2e of its overlay film 2c to be tilted respectively be bent into circular-arc roughly trapezoidal of section for straight line shape and its 2d of corner portion flow deformation.

As other examples, also can the bi-side 2e of overlay film 2c be made as protrude a little laterally circular-arc.

At this moment; Shown in Fig. 2 (c); Through forcing the above-mentioned tubular layer 3 of bending deflection to form the 3a of concavity portion; Make its inner face 3b be close to the helical exposing surface 1a of flexible pipe body 1, thereby by the flowability of this tubular layer 3, the two end portions 3d flow deformation of the 3c of lamination portion of this tubular layer 3 that especially contacts with the 2d of corner portion at the axial two ends of flexible pipe of above-mentioned intensive aspect 2.

Therefore; Embodiment 2 shown in Figure 2 also can obtain the action effect identical with the above embodiments 1, in addition, and shown in Fig. 2 (b); The angle part 4 that is made up of the side 2e of the helical exposing surface 1a of above-mentioned flexible pipe body 1 and intensive aspect 2 becomes the obtuse angle; Therefore, tubular layer is adhered on 3 along its, the curved part 3a of tubular layer 3 just can be close to this angle part 4 fully.

Thus,, can be easily the helical exposing surface 1a of flexible pipe body 1 be close to tubular layer 3, and can prevents the intrusion of sealing fully, the advantage that produces feeling of high class is arranged to the inside of flexible pipe body 1 with simple processing.

Embodiment 3

Shown in Fig. 3 (a)～(c); This embodiment 3 is with the difference of said embodiment's 1 shown in Figure 1 structure: the top 2f of the overlay film 2c of said intensive aspect 2 is formed protrusion be the circular-arc shape of section, structure in addition is identical with embodiment illustrated in fig. 11.

In following situation shown in the illustrated example: the section shape of above-mentioned intensive aspect 2 is that 2f and bi-side 2e above its overlay film 2c are bent into is circular-arc roughly semicircle.

As other examples, also can form roughly half elliptic or similar with it shape.

Therefore, embodiment 3 shown in Figure 3 also can obtain the action effect identical with the above embodiments 1, in addition; Shown in Fig. 3 (c), the top 2f protrusion of overlay film 2c is circular-arc for section, therefore; Material as the top 2f of the overlay film 2c of intensive aspect 2; Even do not use mobile thermoplastic resin excellent, only 2f adheres to tubular layer 3 above this, and the 3c of lamination portion of said tubular layer 3 can become also that the 2f protrusion is the circular-arc shape of section above overlay film 2c.

Thus, can seem to have relief flexible pipe, the advantage of the convex lens effect that can realize seeing through the 3c of lamination portion is equably arranged with the strip material 2a that the material of overlay film 2c irrespectively simply and is equably made intensive aspect 2.

Embodiment 4

Shown in Fig. 4 (a)～(c); The difference of this embodiment 4 and said embodiment 1 shown in Figure 1 or embodiment 2 shown in Figure 2 or embodiment's 3 shown in Figure 3 structure is: the 3a of concavity portion and the 3c of lamination portion of said tubular layer 3 are formed mild wave; The periphery integral body of these 3a of concavity portion and the 3c of lamination portion is carried out undergauge to radially tightening; Thereby this 3c of lamination portion resiliently deformable and become with the surface of the 3a of concavity portion roughly with one side or fully with one side, structure in addition and embodiment shown in Figure 11 or embodiment 2 shown in Figure 2 or embodiment 3 shown in Figure 3 are identical.

Example as its production method; Said flexible pipe body 1 and said extrusion shaping machine are axially relatively moved to flexible pipe; With a large amount of soft synthetic resins from this extrusion shaping machine towards the helical exposing surface 1a of

flexible pipe body

1 and 2 pressurizations of said intensive aspect and extrude; Especially the spiral chute that more soft synthetic resin is injected by the strong hand and imbed helical exposing surface 1a comes lamination tubular layer 3; Thereby according to balanced with respect to the extrusion capacity of the travelling speed of the flexible pipe body 1 of these extrusion shaping machines and soft synthetic resin, the concavo-convex difference of these 3c of lamination portion and the 3a of concavity portion less and its surperficially become mild wave.

Thus, the section shape of each 3c of lamination portion be easier to be formed on its flexible pipe axially central authorities do not form flat and the section of attenuation is circular-arc gradually towards two end portions 3d from this middle body.

In following situation shown in the illustrated example: with embodiment 1 identical ground; Shown in Fig. 4 (b), the section shape of above-mentioned intensive aspect 2 is made as parallel straight line shape respectively for the opposed bi-side 2e with its overlay film 2c and its 2d of corner portion flow deformation is bent into the circular-arc essentially rectangular of section.

As other examples; Shown in Fig. 2 (b); Also can the section shape of intensive aspect 2 be formed and bi-side 2e tilted be bent into circular-arc roughly trapezoidal of section for its 2d of corner portion flow deformation of straight line shape; Or shown in Fig. 3 (b), form the top 2f and the bi-side 2e that make its overlay film 2c and be bent into circular-arc roughly semicircle or similar with it shape.

Therefore; Embodiment 4 shown in Figure 4 also can obtain the action effect identical with the above embodiments 1～3; In addition; Shown in Fig. 4 (c); Cover on the outer surface of metal-like hose A as cylinder and make this sleeve make the inner peripheral surface of metal-like hose A be close to the outer circumferential face of joint (not shown) even will for example compress to undergauge radially with sleeve (not shown), or cover is gone up flexible pipe band such as flat rubber belting and by this flexible pipe band to radially tightening undergauge to make the inner peripheral surface of metal-like hose A be close to the outer circumferential face of joint, also can spread all over full week of flexible pipe and compress the outer circumferential face of 3a of concavity portion and the 3c of lamination portion respectively equably.

Thus, the advantage that can seamlessly be close to when cylinder or flexible pipe band etc. is crimped on the outer surface of metal-like hose A is arranged.

In addition, compare with the shown embodiment 1 of Fig. 1 (c), the two end portions 3d of the 3c of lamination portion of the 2d of corner portion at the axial two ends of flexible pipe of covering intensive aspect 2 is thickening on the whole, therefore, the advantage that is difficult for breaking is arranged.

And; In embodiment 1～3; With said tubular layer 3c form from the flat of its flexible pipe axle direction central authorities towards two end portions 3d gradually attenuation, protrusion is the roughly circular-arc shape of section; But be not limited thereto, shown in embodiment 4, also can the section shape of the 3c of lamination portion be formed not its flexible pipe axially central authorities form flat and from this towards two end portions 3d gradually attenuation, protrusion is the circular-arc shape of section.

In addition; Illustrated example in each embodiment 1～4 illustrates the situation that an intensive aspect 2 axially is wound in spiral helicine, so-called one winding to flexible pipe with predetermined interval along the surface of flexible pipe body 1; But be not limited thereto; Also can the intensive aspect more than two or two 2 axially be wound in spiral helicine, bifilar winding or three bursts of windings etc. with predetermined interval to flexible pipe along the surface of flexible pipe body 1.

Also can obtain the identical action effect with last shown embodiment this moment, in addition, compares with one winding, can shorten the winding time of intensive aspect 2, and the manufacturing time seeking to reduce thus and the advantage of manufacture cost are arranged.

Claims

1. metal-like hose; Have the light of sending out metallochrome strip material (2a) intensive aspect (2) devices spaced apart and be around in the outside of flexible pipe body (1) with helical coil; The whole metallochrome that adheres to transparent or semitransparent tubular layer (3) and can have an X-rayed above-mentioned strip material (2a) in its outside from the outside; It is characterized in that

Said tubular layer (3) has concavity portion (3a) and lamination portion (3c); Said concavity portion (3a) be through will with the helical part of the opposed said tubular layer of helical exposing surface (1a) (3) of said flexible pipe body (1) towards said flexible pipe body (1) bending; And make its inner face (3b) be close to the helical exposing surface (1a) of this flexible pipe body (1) and form; Said lamination portion (3c) is being laminated on the said intensive aspect (2) between the said concavity portion (3a)

Said concavity portion (3a), and be formed at the position of the bight subtend between the side (2e) of said helical exposing surface (1a) and said intensive aspect (2) of said flexible pipe body (1), partly form the heavy wall position,

The axial middle body of flexible pipe of said lamination portion (3c) is protruded to radial outside the most, towards the axial two end portions of flexible pipe (3d) attenuation gradually, form transparent or semitransparent convex lens from the axial middle body of this flexible pipe.

2. metal-like hose as claimed in claim 1 is characterized in that,

Opposed two the said sides (2e) that said intensive aspect (2) formed intensive aspect are towards the said lamination portion (3c) of said tubular layer (3) and become shape in a narrow margin.

3. according to claim 1 or claim 2 metal-like hose is characterized in that,

Said intensive aspect (2) is comprised that the strip material (2a) of a surface metallic lustre, the reinforcement body (2b) that is laminated to its radially inner side and covering are formed at these overlay films (2c) on every side; Top (2f) of this overlay film forms protrusion and is the circular-arc shape of section, and the overlay film (2c) and the lamination portion (3c) that are laminated on the said strip material (2a) form with the mode that becomes transparent or semitransparent convex lens.

4. according to claim 1 or claim 2 metal-like hose is characterized in that,

Through periphery undergauge with the said concavity portion (3a) and the said lamination portion (3c) of said tubular layer (3), thus said lamination portion's (3c) resiliently deformable and this lamination portion (3c) and the surface of said concavity portion (3a) are become with one side.

5. metal-like hose as claimed in claim 3 is characterized in that,

6. metal-like hose as claimed in claim 1 is characterized in that,

The said lamination portion (3c) of said tubular layer (3) forms and the axial mediad radial outside of its flexible pipe is protruded the most and the section of attenuation is circular-arc gradually towards the axial two end portions of flexible pipe (3d) from this projection.