CN105518362A

CN105518362A - Pipe

Info

Publication number: CN105518362A
Application number: CN201480049696.5A
Authority: CN
Inventors: 得能真一; 中瀬贵彦
Original assignee: Toyox Co Ltd
Current assignee: Toyox Co Ltd
Priority date: 2013-09-11
Filing date: 2014-08-28
Publication date: 2016-04-20
Anticipated expiration: 2034-08-28
Also published as: MY180217A; HK1219772A1; CN105518362B; WO2015037448A1; JP2015055291A; JP6161200B2

Abstract

The purpose of the present invention is to enable the wear state of the inner surface of a pipe and the state of flow inside the pipe to be visually recognizable by means of a simple construction. A wire-like or strip-like colored wear detection unit (2), which partially covers a portion of a transparent pipe (1) in the circumferential direction along the entire length in the interior of the pipe (1), is embedded in the pipe (1) on the inside of the center position in the thickness direction. Thus, the wear detection unit (2) is worn away in accordance with the degree of wear of the inner surface (1a) of the pipe (1), and the worn state of the wear detection unit (2) can be visually recognized from outside of the pipe (1) through a first transparent region (11) of the pipe body (1) arranged on the outside of the wear detection unit (2). At the same time the interior of the pipe body (1) can be visually recognized from outside of the pipe body (1) through a second transparent region (12) of the pipe body (1) in which the wire-like or strip-like wear detection unit (2) is not arranged.

Description

Body

Technical field

The present invention relates to a kind of when being carried the solid such as plastochondria, powder by fluids such as pressurized air, or by the body be made up of flexible pipe, pipe etc. used during the liquid thing of bull ladle containing plastochondria, powder etc.

Background technique

In the past, have the transport hose with wear detection function as this body, this transport hose possesses: outside layer, and to implement yellow be painted and have transmission of light; And synthetic resin hose wall, implement the blue series of the color being different from layer outside this or the painted and la m with transmission of light of red colour system is laminated, at the outer circumferential face of the outside layer of described hose wall, flexible pipe axially screw winding spaced apart inner side one half portion of flexible pipe radial direction is set to the enhancing core of taper towards flexible pipe center, and according to the degree of wear of the la m caused with the contact with solid or liquid thing, the color of described hose wall is from green to yellow or gradually change (such as, referenced patent document 1) from orange to yellow.

prior art document

patent documentation

Patent documentation 1: Japanese Patent Publication 2010-159822 publication

Summary of the invention

the problem that invention will solve

But in this existing body, although outside layer and la m have transmission of light (light transmissive character), because outside layer and la m entirety are colored, therefore their light of transmission own is diffused and causes transmissivity to reduce.Therefore, the flow condition of the solid that clearly cannot confirm to pass through at inside hose by visual from the outside of flexible pipe or liquid thing etc., exists and easily produces the problems such as blocking accident.

The present invention, to address this is that as problem, its object is to the flow condition in the wear condition of visual confirmation inner surface of tube body while of simple structure and body.

for the scheme of dealing with problems

In order to realize this object, the present invention is a kind of body, and it has wear detection function, and the feature of described body is to possess: tube body, is made up of transparent material; And abrasion detection portion, be set up in the inside of described tube body throughout the total length of described tube body and be made up of coloured material, described abrasion detection portion is formed as wire or the band shape of a part for the circumference of tube body described in local complexity, and buries underground in the inner part than thickness direction neutral position in described tube body.

the effect of invention

There is the present invention of described feature, inner throughout its total length at transparent tube body, the abrasion detection portion be colored of the wire of a part for the circumference of local complexity tube body or band shape is buried underground in the inner part than thickness direction neutral position in tube body.Thus, according to the degree of wear of the internal surface of tube body, abrasion detection portion is cut, through the first transparent position in the outside being configured at abrasion detection portion in tube body, and can from the cutting situation in the perspective abrasion detection portion, outside of tube body.Meanwhile, through the second transparent position in abrasion detection portion not being configured with wire or band shape in tube body, can from the inside of the outside perspective tube body of tube body.

Thus, can with the simple structure wear condition of the internal surface of visual confirmation tube body and the flow condition of transportation of substances that flows in tube body simultaneously.

Its result, with outside layer and la m, there is transmission of light but compared with outside layer and the prior art that is colored of la m entirety, the wear-out life of the internal surface of the tube body that conveying solid or liquid thing etc. cause can be identified by, and the replacing period of body can be inferred, what therefore not only can prevent from causing by wearing and tearing breaks, and can prevent the blocking accident etc. of the transportation of substances in tube body in advance, thus Security improves.

In addition, prepare to be embedded with respectively the multiple tube body in the abrasion detection portion of different colours, and change the color in abrasion detection portion according to purposes, function etc., thus the color in abrasion detection portion becomes mark and can simply and with low cost difference body.

Accompanying drawing explanation

Fig. 1 is the integrally-built explanatory drawing of the body represented involved by embodiments of the present invention, and Fig. 1 (a) is longitudinal section plan view, and Fig. 1 (b) is stereogram.

Fig. 2 is the explanatory drawing of the variation representing body, and Fig. 2 (a) is longitudinal section plan view, and Fig. 2 (b) is stereogram.

Fig. 3 is the explanatory drawing of the variation representing body, and Fig. 3 (a) is longitudinal section plan view, and Fig. 3 (b) is stereogram.

Fig. 4 is the explanatory drawing of the variation representing body, and Fig. 4 (a) is longitudinal section side view, and Fig. 4 (b) is stereogram.

Fig. 5 is the integrally-built explanatory drawing of the body represented involved by another embodiment of the present invention, and Fig. 5 (a) is the longitudinal section plan view of the variation representing Fig. 1, and Fig. 5 (b) is the longitudinal section plan view of the variation representing Fig. 2.

Fig. 6 is the integrally-built explanatory drawing of the body represented involved by another embodiment of the present invention, Fig. 6 (a) is the longitudinal section plan view of the variation representing Fig. 1, Fig. 6 (b) is the longitudinal section plan view of the variation representing Fig. 2, and Fig. 6 (c) is the longitudinal section plan view of the variation representing Fig. 3.

Embodiment

Below, with reference to the accompanying drawings embodiments of the present invention are described in detail.

Body A involved by embodiments of the present invention by order to carry the solid such as plastochondria, powder by fluids such as pressurized air, or in order to during the liquid thing etc. of bull ladle containing plastochondria, powder by the formation such as flexible pipe, pipe used, and there is wear detection function.

If describe in detail, then, as shown in Fig. 1 ~ Fig. 6, the body A involved by embodiments of the present invention possesses following main composition element: tube body 1, is made up of transparent material; And abrasion detection portion 2, be set up in the inside of tube body 1 throughout the total length of tube body 1 and be made up of coloured material.

At this, transparent material is not limited to water white material, as long as visual confirmation the abrasion detection portion 2 of the coloured material of the inside of tube body 1 can be arranged at from the outside of tube body 1, then also comprise the material of transparency than transparent low translucent or colored transparent.

Tube body 1 is such as formed as having flexible tubulose by soft materials that is transparent, translucent or colored transparent such as the soft synthetic resins such as vinyl chloride resin, silicone rubber and other rubber, within it near surperficial 1a, to be embedded with abrasion detection portion 2 described later away from the mode of outer surface 1b.

The structure of tube body 1 can be as shown in Figures 1 and 2 by multiple layer to the stacked structure of radial direction, also can be single layer structure as shown in Figures 3 and 4.

In addition, as required, be preferably configured to local in tube body 1 and enhancing mechanism be set and the entirety of the tube body 1 comprising described enhancing mechanism can be had an X-rayed, or the major part in tube body 1 except described enhancing mechanism can be had an X-rayed.

In this enhancing mechanism, such as, there are the enhancing wire rod 3 that the monofilament (monofilament: ultimate fibre), multifilament (multifilament) etc. that are formed by transparent synthetic resin such as polyester, nylon (TM trade mark) are formed, the enhancing silk (not shown) etc. be made up of many or a braided wires.In addition, also comprising with tube body 1 in enhancing wire rod 3 is the enhancing wire rod that the opaque or transparent hard resins such as the vinyl chloride of homogeneity class are formed, and also comprises the enhancing wire rod be made up of wires etc. such as stainless steels.

As strengthening the shape of wire rod 3, can Usage profile is rounded, section ovalize, section are roughly rectangular, the section of the front end of radial outside be arc-shaped section be semi-cylindrical or section be roughly trapezoidal etc. various shapes.

As the concrete example of tube body 1, when shown in Fig. 1 (a), Fig. 1 (b), between the internal layer 1c forming tube body 1 and outer 1d, spirally bury the enhancing wire rod 3 of the circular cross section be made up of transparent material (transparent resin) underground, thus be integrated in the mode that a part of outer 1d is given prominence in the shape of a spiral.

When shown in Fig. 2 (a), Fig. 2 (b), between internal layer 1c and outer 1d, spirally bury the enhancing wire rod 3 of the circular cross section be made up of transparent resin underground, thus be integrated in the mode that outer 1d becomes even surface.

When shown in Fig. 3 (a), Fig. 3 (b), be formed as the outer surface 1b of tube body 1 of single layer structure or stepped construction, spirally the section of the front end of the projecting radial outside be made up of transparent resin is the section of arc-shaped is that semi-cylindrical or section are roughly integrated in the mode of trapezoidal enhancing wire rod 3.

As the method for the tube body 1 of example shown in working drawing 1 (a), Fig. 1 (b) ~ Fig. 3 (a), Fig. 3 (b), following manufacture method described in 50-31198 publication as clear in Japanese Patent Publication can be utilized, namely, by the shoestring be made up of soft synthetic resin of the melting of extruding continuously from extruder or semi-molten state and hard resin filament, spirally to be wound in cantilever position by while the outer surface of screw axis that supports, the adjacent face of described shoestring is bonded to one another.

When Fig. 4 (a), Fig. 4 (b), the example not being provided with in the tube body 1 of single layer structure or stepped construction and strengthening wire rod 3 is shown.

And, although not shown as another example, but can change as follows, tube body 1 is replaced with the structure of more than three layers, or the section shape of the enhancing wire rod 3 be made up of transparent resin is replaced with other shape, or the enhancing wire rod that is made up of wire is set and replaces the enhancing wire rod 3 be made up of transparent resin, or strengthen wire rod 3 with transparent resin system, metal strengthens wire rod and independently many strengthened silk and carry out in the shape of a spiral reeling and be arranged to netted etc.

Abrasion detection portion 2 is painted to such as red, blue, yellow or other color that clearly can identify with tube body 1, and is formed as wire or the band shape of a circumference part for local complexity tube body 1.

As the material in abrasion detection portion 2, preferably use and the material of tube body 1 and the material of cohesiveencess excellence of material strengthening wire rod 3.As the concrete example of the material in abrasion detection portion 2, when the material of tube body 1 is vinyl chloride resin, preferably utilize vinyl chloride resin and cohesiveencess good and than strengthen wire rod 3 softness to have the polycarbonate-based polyurethane resin of wearability etc. shaping.

Further, as other material in abrasion detection portion 2, also can use and the material of tube body 1 and the inadherent material of material strengthening wire rod 3.

As the shape in abrasion detection portion 2, can Usage profile is rounded, section ovalize, section are roughly rectangular etc. various shapes.

In addition, abrasion detection portion 2 in tube body 1 than thickness direction neutral position in the inner part with to tube body 1 axially in the shape of a spiral or straight line shape buried underground, through the first transparent position 11 outside the thickness direction being configured at abrasion detection portion 2 in tube body 1, can have an X-rayed from the outside of tube body 1.Meanwhile, with through the be not configured with abrasion detection portion 2 in tube body 1 second transparent position 12, can configure from the mode of the inside of the outside perspective tube body 1 of tube body 1.

Further, the burial place in abrasion detection portion 2, also can be configured in the inner part than thickness direction neutral position in the inside strengthening wire rod 3.

As the concrete example in abrasion detection portion 2, when shown in Fig. 1 (a), Fig. 1 (b), Fig. 2 (a), Fig. 2 (b) and Fig. 3 (a), Fig. 3 (b), abrasion detection portion 2 is formed as the wire of section ovalize, is configured in the shape of a spiral in this abrasion detection portion 2 along the inside of tube body 1 or outer surface 1b.

When Fig. 4 (a), Fig. 4 (b), abrasion detection portion 2 is formed as the wire of section ovalize, in the inside of tube body 1, circumferentially every predetermined distance respectively to axial linearly configuration many abrasion detection portions 2.

Further, although not shown as another example, also can change as follows: the section shape in abrasion detection portion 2 is replaced with other shape; Replace with banded abrasion detection portion 2; Spiral helicine abrasion detection portion 2 shown in Fig. 1 (a), Fig. 1 (b), Fig. 2 (a), Fig. 2 (b) and Fig. 3 (a), Fig. 3 (b) is replaced with the straight line shape being configured to extend vertically; The abrasion detection portion 2 of the straight line shape shown in Fig. 4 (a), Fig. 4 (b) is replaced with spiral helicine configuration etc.

The body A with wear detection function involved by this embodiments of the present invention, in the inside of transparent tube body 1 throughout its total length, the wire of a circumference part of local complexity tube body 1 or the abrasion detection portion 2 of the painted of band shape are buried underground in the inner part than thickness direction neutral position in tube body 1.Therefore, in the conveying solid such as plastochondria, powder, or during the liquid thing of bull ladle containing plastochondria, powder, the internal surface 1a of tube body 1 contacts with solid, liquid thing, and therefore according to the degree of wear of the internal surface 1a of tube body 1, abrasion detection portion 2 is cut.In this case, through the first transparent position 11 in the outside being configured at abrasion detection portion 2 in tube body 1, can from the cutting situation in the perspective abrasion detection portion 2, outside of tube body 1.

Further, meanwhile, through the second transparent position 12 not being configured with wire or banded abrasion detection portion 2 in tube body 1, can from the inside of the outside perspective tube body 1 of tube body 1.

Thus, can flow condition (flow condition at the transportation of substances of tube body 1 internal flow) simultaneously in the wear condition of visual confirmation inner surface of tube body (the internal surface 1a of tube body 1) and body with simple structure.

Its result, conveying solid or liquid thing etc. can not only be identified by and the wear-out life of the internal surface 1a of tube body 1 that causes, and the replacing period of body A can be inferred, thus can prevent by breaking of wearing and tearing and cause, and the blocking accident etc. of the transportation of substances in tube body 1 can be prevented in advance, thus Security improves.

In addition, prepare to be embedded with respectively the multiple tube body 1 in the abrasion detection portion 2 of different colours, and change the color in abrasion detection portion 2 according to purposes, function etc., thus the color in abrasion detection portion 2 becomes mark and can simply and with low cost difference body A.

Especially, when abrasion detection portion 2 is formed as wire, the enlarged areas that major part becomes the second transparent position 12, transparent position 12, second that there is not abrasion detection portion 2 in the circumference of tube body 1 is to close to maximum value.

Thus abrasion detection portion 2 can not hinder visual, and can the more clearly flow condition of transportation of substances that flows in tube body 1 of visual confirmation.

Its result, can prevent the blocking accident etc. of the transportation of substances in tube body 1 more reliably, and improve Security further.

In addition, when abrasion detection portion 2 is configured at tube body 1 in the shape of a spiral, throughout the circumference of the internal surface 1a of tube body 1, vertically to be configured with abrasion detection portion 2 at equal intervals.

Thus, can the degree of wear of circumference entirety of internal surface 1a of detecting tube main body 1.

Its result, can reduce wear the omission identified, thus improve Security further.

Embodiment 1

Then, with reference to the accompanying drawings various embodiments of the present invention are described.

This embodiment 1 is as shown in Fig. 1 (a), Fig. 1 (b) and Fig. 2 (a), Fig. 2 (b), the enhancing wire rod 3 be made up of transparent material (transparent resin) is set in tube body 1, bury abrasion detection portion 2 underground in the inside strengthening wire rod 3, in enhancing wire rod 3, be configured with abrasion detection portion 2 in the inner part than thickness direction neutral position.

In example shown in Fig. 1 (a), Fig. 1 (b), owing to being embedded with abrasion detection portion 2 in the inner end positions strengthening wire rod 3, and this enhancing wire rod 3 is embedded in the shape of a spiral the inside (between internal layer 1c and outer 1d) of tube body 1, therefore in internal layer 1c until thickness direction neutral position is configured with abrasion detection portion 2 in the shape of a spiral with the state be absorbed in.

Fig. 2 (a), Fig. 2 (b) Suo Shi in example, owing to being embedded with abrasion detection portion 2 in the inner end positions strengthening wire rod 3, and this enhancing wire rod 3 is embedded in the shape of a spiral the inside (between internal layer 1c and outer 1d) of tube body 1, therefore in internal layer 1c until thickness direction neutral position is configured with abrasion detection portion 2 in the shape of a spiral with the state be absorbed in.

The body A with wear detection function involved by this embodiments of the invention 1, when the wearing and tearing of the internal surface 1a of tube body 1 arrive splicing thread material 3, abrasion detection portion 2 starts to be cut, and when strengthening before wire rod 3 entirety terminates wearing and tearing, wear and tear in abrasion detection portion 2.

Thus, can wear-out life be identified with the moment that tube body 1 is enhanced by strengthening wire rod 3.

Its result, is difficult to break because of the wearing and tearing of the internal surface 1a of tube body 1 more, thus has the advantage improving Security further.

And, as shown in Fig. 1 (a), Fig. 1 (b) and Fig. 2 (a), Fig. 2 (b), in enhancing wire rod 3, make specific wear detection unit 2 by the central position 31 of configuration outside thickness direction to radial outside at utmost bulging, and axial two-end part 32,33 wall thickness from central position 31 towards tube body 1 is thinning gradually and being formed as transparent convex lens, by the convex lens effect through central position 31, can from outside amplifying observation abrasion detection portion 2.

Thus, even if abrasion detection portion 2 size be colored is set to comparatively thin, also can visually confirm.

But, as illustrated example, when the inside strengthening wire rod 3 is embedded with abrasion detection portion 2, if bury the abrasion detection portion 2 of thicker size underground, then harmful effect is produced to the rigidity strengthening wire rod 3, can expect that the resistance to pressure of body A or shape retention etc. likely reduce.In addition, if the size in abrasion detection portion 2 is comparatively thick, then compared with thinner with the size in abrasion detection portion 2 situation, the abrasion detection portion 2 be colored is cut and the probability be mixed in fluid improves, and the quality of convection cell brings dysgenic possibility also to improve.

On the other hand, when shown in Fig. 1 (a), Fig. 1 (b) and Fig. 2 (a), Fig. 2 (b), the abrasion detection portion 2 that size is thinner can be used, therefore, it is possible to will suppress, for inferior limit, to there is the advantage preventing performance and quality from declining to the impact in the abrasion detection portion 2 strengthening wire rod 3 and tube body 1.

Embodiment 2

This embodiment 2 is as shown in Fig. 3 (a), Fig. 3 (b) and Fig. 5 (a), Fig. 5 (b), the enhancing wire rod 3 be made up of transparent material (transparent resin) is set in tube body 1, on the thickness direction of tube body 1, abrasion detection portion 2 is configured with at the coincidence position 13 be configured in the inner part than enhancing wire rod 3, this structure is different from the embodiment 1 shown in Fig. 1 ~ Fig. 3, and structure is in addition identical with the embodiment 1 shown in Fig. 1 ~ Fig. 3.

Example shown in Fig. 5 (a) is the variation of example shown in Fig. 1 (a), Fig. 1 (b), spirally bury abrasion detection portion 2 underground in the mode contacted with the inner end positions of spiral helicine enhancing wire rod 3, thus abrasion detection portion 2 configures in the mode at the coincidence position 13 being trapped in internal layer 1c.

Example shown in Fig. 5 (b) is the variation of example shown in Fig. 2 (a), Fig. 2 (b), spirally bury abrasion detection portion 2 underground in the mode contacted with the inner end positions of spiral helicine enhancing wire rod 3, thus abrasion detection portion 2 configures in the mode at the coincidence position 13 being trapped in internal layer 1c.

The body A with wear detection function involved by this embodiments of the invention 2, when before the wearing and tearing of the internal surface 1a of tube body 1 arrive splicing thread material 3, abrasion detection portion 2 is cut.

Its result, compared with embodiment 1, is difficult to break because of the wearing and tearing of the internal surface 1a of tube body 1 more, thus has the advantage improving Security further.

Embodiment 3

This embodiment 3 is as shown in Fig. 6 (a), Fig. 6 (b), Fig. 6 (c), abrasion detection portion 2 and enhancing wire rod 3 are spirally configured at tube body 1 respectively, and make the axial displacement of relative position to tube body 1 of abrasion detection portion 2 and enhancing wire rod 3, embodiment 2 shown in this structure from the embodiment 1 shown in Fig. 1 ~ Fig. 3 or Fig. 3 and Fig. 5 is different, and the embodiment 2 shown in structure in addition with the embodiment 1 shown in Fig. 1 ~ Fig. 3 or Fig. 3 and Fig. 5 is identical.

In addition, in the example shown in Fig. 6 (a), Fig. 6 (b), Fig. 6 (c), in tube body 1, from strengthening the allocation position of wire rod 3 to the position of axial displacement, and on the thickness direction of tube body 1 near the inner end positions strengthening wire rod 3 horizontal position or the soft position 14 that is configured than its horizontal position in the inner part, be spirally embedded with abrasion detection portion 2.

Example shown in Fig. 6 (a) is the variation of example shown in Fig. 5 (a), for the soft position 14 be configured than strengthening wire rod 3 horizontal position in the inner part on the thickness direction of the internal layer 1c of tube body 1, spiral helicine abrasion detection portion 2 is buried underground to axial displacement with the burial place strengthening wire rod 3.

Example shown in Fig. 6 (b) is the variation of example shown in Fig. 5 (b), for the soft position 14 be configured than strengthening wire rod 3 horizontal position in the inner part on the thickness direction of the internal layer 1c of tube body 1, spiral helicine abrasion detection portion 2 is buried underground to axial displacement with the burial place strengthening wire rod 3.

Example shown in Fig. 6 (c) is the variation of example shown in Fig. 3 (a), Fig. 3 (b), for the soft position 14 be configured than strengthening wire rod 3 horizontal position in the inner part on the thickness direction of tube body 1, spiral helicine abrasion detection portion 2 is buried underground to axial displacement with the extrusion position strengthening wire rod 3.

And, although as another example and not shown, the burial place in the abrasion detection portion 2 shown in Fig. 1 (a), Fig. 1 (b) and Fig. 2 (a), Fig. 2 (b) can be changed in internal layer 1c strengthen wire rod 3 thickness direction inner end positions near horizontal position.

The body A with wear detection function involved by this embodiments of the invention 3, even if when strengthening wire rod 3 and being made up of coloured opaque material, strengthen wire rod 3 and also can not become obstacle, can from the outside of tube body 1, the cutting situation in abrasion detection portion 2 is had an X-rayed at the first transparent position 11 through the outside being configured at abrasion detection portion 2 in tube body 1.

Thus, even if it is opaque to strengthen wire rod 3, also can the wear condition of internal surface 1a of visual confirmation tube body 1.

Its result, has by changing the color that strengthens wire rod 3 and can simply and with the advantage of low cost difference body A.

In addition, as illustrated example, in the internal layer 1c of tube body 1, when being embedded with abrasion detection portion 2 than enhancing wire rod 3 by the horizontal position inside thickness direction, identically with embodiment 2, the moment abrasion detection portion 2 arrived before splicing thread material 3 in the wearing and tearing of the internal surface 1a of tube body 1 is cut.

And, when the burial place in abrasion detection portion 2 being changed in internal layer 1c horizontal position near the thickness direction inner end positions strengthening wire rod 3, identically with embodiment 1, when the wearing and tearing of the internal surface 1a of tube body 1 arrive splicing thread material 3, abrasion detection portion 2 starts to be cut, when before the entirety strengthening wire rod 3 terminates wearing and tearing, wear and tear in abrasion detection portion 2.

In addition, in the embodiment shown, the enhancing wire rod 3 be made up of transparent material (transparent resin) is spirally set in tube body 1, but is not limited thereto, the enhancing wire rod be made up of wire can be replaced with, or spirally reel many and strengthen silks and be arranged to netted.

In addition, Fig. 1 (a), Fig. 1 (b) and Fig. 2 (a), example shown in Fig. 2 (b) and in example 2 in Fig. 3 (a), Fig. 3 (b) and Fig. 5 (a), the shown example of Fig. 5 (b) in embodiment 1, spirally be configured with abrasion detection portion 2 respectively and strengthen wire rod 3, but be not limited thereto, example as Suo Shi Fig. 4 (a), Fig. 4 (b), can respectively to axially configuring abrasion detection portion 2 with straight line shape and strengthening wire rod 3.

Description of reference numerals

A-body, 1-tube body, 1a-internal surface, the transparent position of 11-first, the transparent position of 12-second, 13-coincidence position, 2-abrasion detection portion, 3-strengthens wire rod, 31-central position, and 32, the axial two-end part of 33-.

Claims

1. a body, it has wear detection function, and the feature of described body is to possess:

Tube body, is made up of transparent material;

Abrasion detection portion, is set up in the inside of described tube body throughout the whole length range of described tube body and is made up of coloured material,

Described abrasion detection portion is formed as wire or the band shape of a part for the circumference of tube body described in local complexity, and is embedded in described tube body than position in the inner part, thickness direction neutral position.

2. body according to claim 1, is characterized in that,

Described abrasion detection portion is formed as wire.

3. body according to claim 1 and 2, is characterized in that,

Described abrasion detection portion is spirally configured at described tube body.

4. the body according to claim 1,2 or 3, is characterized in that,

Be provided with the enhancing wire rod be made up of transparent material at described tube body, and bury described abrasion detection portion underground in the inside of described enhancing wire rod, in described enhancing wire rod, configure described abrasion detection portion than position in the inner part, thickness direction neutral position.

5. the body according to claim 1,2 or 3, is characterized in that,

Be provided with the enhancing wire rod be made up of transparent material at described tube body, on the thickness direction of described tube body, configure described abrasion detection portion at the superimposed position be configured in the inner part than described enhancing wire rod.

6. the body according to claim 4 or 5, is characterized in that,

In described enhancing wire rod, make to lean on the central position be configured outside thickness direction to radial outside at utmost bulging than described abrasion detection portion, and at the axial two-end part axially of described tube body, thickness is diminished from described central position towards described enhancing wire rod gradually, thus be formed as transparent convex lens.

7. body according to claim 3, is characterized in that,

Described abrasion detection portion and enhancing wire rod are spirally configured at described tube body respectively, and make the axially displacement of relative position at described tube body of described abrasion detection portion and described enhancing wire rod.