CN101307844A - Synthetic resin pipe with joints at both ends - Google Patents
Synthetic resin pipe with joints at both ends Download PDFInfo
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- CN101307844A CN101307844A CNA2007101623372A CN200710162337A CN101307844A CN 101307844 A CN101307844 A CN 101307844A CN A2007101623372 A CNA2007101623372 A CN A2007101623372A CN 200710162337 A CN200710162337 A CN 200710162337A CN 101307844 A CN101307844 A CN 101307844A
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Abstract
A synthetic resin-made pipe provided with joint head part on two ends is disclosed. A strengthened helix protruding strip (2) formed of hard koroseal resin of a inner layer material (2b) composed of olefin resin melt in integration with a pipe body (1) is embedded at periphery face of a thin wall formed of olefin resin and the flexible pipe body (1); each cylinder joint head (3, 3) formed of hard koroseal resin, having a certain thickness, is arranged on the periphery face at two ends of the pipe body (1), each being provided with the inner layer material (2b) composed of olefin resin melt in integration with a pipe body (1). With the invention, a flexible pipe body is provided to avoid disadvantage caused by a plasticizer; a synthetic resin-made pipe of a joint head part can be installed on the two ends of the pipe body, be attached to other pipe bodies, although the pipe is formed of olefin resin having difficult to attach to other pipe bodies.
Description
Technical field
The present invention relates to the improvement that cylindric connector portions that two end part are provided with hard resin system forms with flexual synthetic resin pipe.
Background technique
In the past, as patent documentation 1 discloses, the known connecting tube that following structure is arranged, for example in, in the buildings such as high-rise apartment building, the connecting tube that is connected with the shared waste pipe that vertically sets along building as drain opening with each family bathtub or closet etc., or as the connecting tube of connection usefulness between the opposed end of the straight line shape body that will form by hard resin, at the outer circumferential face that constitutes by the flexible vinyl chloride resin reinforcement helical protrusion bar of except two end part, reeling with flexual tube body, this reinforcement helical protrusion bar is by having certain width and certain thickness hard vinyl chloride resin constitutes, and, be provided with the cylindric connector portions that constitutes by hard vinyl chloride resin at the two end part of tube body.
Adopt the connecting tube of this structure, because the inner peripheral surface of tube body forms level and smooth face, so draining that not only can be well on, and at the outer circumferential face of this tube body reinforcement helical protrusion bar of reeling, so following advantage is arranged: can bring into play excellent compressive strength and can not damage into flat by pressure, can keep the cross section is toroidal, bring into play good sheathed by the tube wall part of exposing the tube body between the reinforcement helical protrusion bar part of adjacency, even staggering mutually up and down in the center of the opening opposing end of the body that should connect, also the two ends connector portions of this tube body correctly can be connected on the opening opposing end of these bodys.
Patent documentation 1: TOHKEMY 2003-214563 communique
But, adopt above-mentioned connecting tube, because of tube body is made of the flexible vinyl chloride resin, so weathering resistance is poor, might occur in the drawback of the plasticizer transfer that contains its inside, therefore, in the industry, powerful need form the connecting tube that tube body forms by olefin-based resins such as soft polyethylene that does not contain plasticizer etc. or polypropylene, but the cementability of olefin-based resin is poor, has flexual described tube body as if forming by the olefin-based resin, then reinforcement helical protrusion bar and the cylindric connector portions that hard vinyl chloride resin constitutes can not be melted on the outer circumferential face of tube body, therefore, must strengthen helical protrusion bar and cylindric connector portions with forming these with the bonding identical olefin-based resin of tube body.
Form the two ends connector portions with the olefin-based resin if so, then the joint that the straight tube etc. that is used for drain opening or hard vinyl chloride resin system can not be connected is packed with and bonding being integral with the outer circumferential face of short tube in this connector portions, therefore, existing can not be as the problem of connecting tube.
Summary of the invention
In view of the above problems, the object of the present invention is to provide a kind of synthetic resin pipe, constitute by the olefin-based resin although it has flexual tube body, reinforcement helical protrusion bar and the cylindric connector portions that hard vinyl chloride resin constitutes can be fixed on the outer circumferential face of tube body securely integratedly.
For achieving the above object, technological scheme 1 of the present invention is synthetic resin pipe that a kind of two end part have connector portions, outer circumferential face at the soft synthetic resin tubulation body with flexual specific length is wound with the plastic reinforcement helical protrusion bar with certain width and thickness except two end part, and synthetic resin rounding tubular connector portions is set at the two end part outer circumferential face of described soft synthetic resin tubulation body, the two end part of described reinforcement helical protrusion bar are set respectively integratedly continuously at the opposing side of these cylindric connector portions, in this synthetic resin pipe, described soft synthetic resin tubulation body is made of the olefin-based resin, and reinforcement helical protrusion bar, the internal surface of the inner layer material that is made of the olefin-based resin is melted on the outer circumferential face of this soft synthetic resin tubulation body integratedly, projecting strip part one on this inner layer material of the hard vinyl chloride resin formation with certain width is engaged, and, the inside portion of the cylinder section that is made of hard vinyl chloride resin of cylindric connector portions is embedded with inner layer material, and the inner peripheral surface of this inner layer material is melted in integratedly on the outer circumferential face of described soft synthetic resin tubulation body and by the olefin-based resin and constitutes.
In synthetic resin pipe that so constitutes, the inventive features of technological scheme 2 is, being formed with the concavo-convex hooking part of mutual engaging on its mating face and being bonded into and can not separating by hard vinyl chloride resin projecting strip part that constitutes and the inner layer material that is made of the olefin-based resin of described reinforcement helical protrusion bar.
In addition, the inventive features of technological scheme 3 is, the reinforcement helical protrusion bar of scheme of possessing skills 1 or the described sectional shape of claim 2 so that engage the state helically of fusion between the two side portion of the projecting strip part that is made of hard vinyl chloride resin relative to each other and be wound on the two end part outer circumferential face with flexual tube body that is made of described olefin-based resin, is formed described hard resin system tubular connector portions.
Adopt technological scheme 1 of the present invention, tube body with ductility is made of the olefin-based resin, so can not produce the drawback of plasticizer, can use for long-term, the reinforcement helical protrusion bar of helical coil on the outer circumferential face of the tube body that constitutes by this olefin-based resin, the inner face of the inner layer material that is made of the olefin-based resin is melted on the body outer circumferential face integratedly, on this inner layer material, engage the projecting strip part that constitutes by hard vinyl chloride resin integratedly with certain width, therefore, though projecting strip part that is made of hard vinyl chloride resin and the inner layer material right and wrong that are made of the olefin-based resin are bonding, but by this inner layer material can with projecting strip part reliably helical coil on the tube body that constitutes by the olefin-based resin, can give tube body withstand voltage bad intensity by this hard vinyl chloride resin system projecting strip part, and when bending, can not be deformed into flat, thereby while can keep circular cross-section to carry out bending.
In addition, be located at the cylindric connector portions on the two end part outer circumferential face of the described tube body that constitutes by the olefin-based resin, inside portion in the cylindrical portion that is made of hard vinyl chloride resin is embedded with inner layer material, the inner peripheral surface of this inner layer material is melted in integratedly on the outer circumferential face of described soft synthetic resin tubulation body and by the olefin-based resin and constitutes, therefore, identical with described reinforcement helical protrusion bar, although the cylinder section that is made of hard vinyl chloride resin can not be bonded on the tube body that is made of the olefin-based resin, but by this olefin-based resin inner layer material on the outer circumferential face that is melted in the tube body that constitutes by the olefin-based resin integratedly, and can on the outer circumferential face of the two end part of tube body, form the connector portions that the cylinder section that is made of this hard vinyl chloride resin is fixedly formed, although tube body is made of the olefin-based resin, can utilize this hard vinyl chloride resin system cylinder section to carry out being connected reliably to other connection mouth and body.
Adopt the invention of technological scheme 2, because the projecting strip part that the hard vinyl chloride resin of described reinforcement helical protrusion bar constitutes is formed with the concavo-convex hooking part of mutual engaging with the inner layer material that the olefin-based resin constitutes and is combined into and can not separates on its mating face, therefore when the manufacturing of pipe, make and use the projecting strip part that constitutes by hard vinyl chloride resin to engage the state of the inner layer material that constitutes by the olefin-based resin, can simply and reliably be wound in a spiral on the outer circumferential face of tube body, simultaneously under the state on this inner layer material that the projecting strip part that is made of hard vinyl chloride resin is remained on constitute, this inner layer material is melted on the tube body that is made of same material integratedly by the olefin-based resin.
In addition, projecting strip part that is made of hard vinyl chloride resin and the inner layer material that is made of the olefin-based resin are by mutual concavo-convex hooking part combination, so though both right and wrong are bonding, but can be integrated securely, even the outer circumferential face at tube body acts on the pushing force that tube body is caved in, also can stop inner layer material to desire recessed direction to tube body by concavo-convex hooking part breaks away from situation in the projecting strip part, can all the time tube body be held in the cross section toroidal.
Adopt the invention of technological scheme 3, engage fusion and helical coil between the two side portion owing to the projecting strip part that constitutes by hard vinyl chloride resin relative to each other that makes reinforcement helical protrusion bar around forming the hard resin rounding tubular connector portions that is located at integratedly on the outer circumferential face of tube body two end part with described technological scheme 1 or technological scheme 2 described sectional shapes, therefore, though tube body is made of the olefin-based resin, but can form the certain thickness cylindric connector portions that constitutes by hard vinyl chloride resin that has on the outer circumferential face that is fixed on this tube body integratedly, can be bonded in the short tube member etc. that is connected usefulness with drain opening and waste pipe etc. on this cylindric connector portions and install securely.
Description of drawings
Fig. 1 is the side view of synthetic resin pipe of the present invention.
Fig. 2 is the vertical profile side view that has omitted a pipe part.
Fig. 3 is an amplification vertical profile side view of strengthening the helical protrusion bar.
Fig. 4 is the amplification vertical profile side view with another sectional shape of strengthening the helical protrusion bar.
Fig. 5 is the amplification vertical profile side view with another sectional shape of strengthening the helical protrusion bar.
Fig. 6 is the amplification vertical profile side view that the variation of helical protrusion bar is strengthened in expression.
Fig. 7 is the amplification vertical profile side view that inner layer material forms the reinforcement helical protrusion bar of elliptical shape.
Fig. 8 is the amplification vertical profile side view by the reinforcement helical protrusion bar of a plurality of concavo-convex hooking part combinations.
Fig. 9 is the amplification vertical profile side view that the reinforcement helical protrusion bar of concavo-convex hooking part is not set.
Figure 10 is the amplification vertical profile side view that the variation of helical protrusion bar is strengthened in expression.
Figure 11 is the side view that a part is dissectd of an example of expression user mode.
Figure 12 is the side view that in the outer circumferential face formation reinforcement helical protrusion bar process of tube body a part is dissectd.
Figure 13 is that the outer circumferential face of tube body forms the side view that in the connector portions process part is dissectd.
Embodiment
Concrete example of the present invention is described below with reference to the accompanying drawings, Fig. 1 is the side view that two end part have the sub-A of synthetic resin pipe of connector portions, Fig. 2 is its a part of vertical profile side view, this synthetic resin pipe A forms the level and smooth face of total length same diameter at inner peripheral surface, have certain width and a certain thickness plastic reinforcement helical protrusion bar 2 what the outer circumferential face with flexual soft synthetic resin tubulation body 1 was reeling except its two end part that outer surface forms tabular surface, and the outer circumferential face at two end part is wholely set plastic cylindric connector portions 3,3, in addition, in these cylindric connector portions 3,3 opposing side is provided with the two end part of described reinforcement helical protrusion bar 2 respectively integratedly continuously.
In the sub-A of this synthetic resin pipe, the tube body 1 of soft synthetic resin system is made of olefin-based resins such as polyethylene or polypropylene, form tabular surface and strengthen helical protrusion bar 2 its outer surfaces with certain width, internal surface one at the projecting strip part 2a that is made of hard vinyl chloride resin is combined with the bar-shaped or banded inner layer material 2b that is made of the olefin-based resin with described tube body 1 same resin, and form the concavo-convex hooking part 4 of mutual engaging on this mating face, 5 and be combined into and separate, smooth interior surface towards this inner layer material 2b of the outer circumferential face side of tube body 1 is melted in the outer circumferential face side of the tube body 1 that is made of the olefin-based resin on one side integratedly, makes reinforcement helical protrusion bar 2 be wound into helical with certain spacing on one side.
The projecting strip part 2a that is made of hard vinyl chloride resin that strengthens helical protrusion bar 2 is not bonding with the inner layer material 2b that is made of the olefin-based resin, but its internal surface of inner layer material 2b is melted in integratedly on one side on the outer circumferential face of the tube body 1 that identical olefin-based resin constitutes and is wound into helical on one side, utilize the concavo-convex hooking part 4 on the mating face that is located at projecting strip part 2a and inner layer material 2b mutually simultaneously, the 5 projecting strip part 2a that hard vinyl chloride resin is constituted are combined into and can not separate with this inner layer material 2b, therefore, the projecting strip part 2a that is made of hard vinyl chloride resin is maintained on this inner layer material 2b with the state that engages with the inner layer material 2b that is made of the olefin-based resin, can not break away from inner layer material 2b, can be set as one with inner layer material 2b.
As the sectional shape of strengthening helical protrusion bar 2, as mentioned above, as long as make the rectangular cross-section that projecting strip part 2a that utilizes concavo-convex hooking part 4,5 and will be made of hard vinyl chloride resin and the inner layer material 2b that is made of the olefin-based resin are combined into one, as this rectangular cross-section, there is example that Fig. 3～various structures shown in Figure 8 are arranged.
Promptly, in Fig. 3, the projecting strip part 2a that is made of described hard vinyl chloride resin forms two side ends at the width direction with certain width and certain thickness top wall portion 2a1 and is provided with towards the outer circumferential face of tube body 1 integratedly and has certain altitude and the certain thickness two side 2a2 of portion, 2a2 also makes the cross section of inner face side opening be inside コ word shape or door shape, make the 2a2 of two side portion simultaneously, inside side, the end of 2a2 is bent into the right angle and forms convex hooking part 4, by with these top wall portion 2a1 and the 2a2 of two side portion, bury the inner layer material 2b that constitutes by described olefin-based resin with this groove shape 2a3 of portion identical cross-sectional shape in the spiral chute shape 2a3 of portion that space portion that 2a2 surrounds forms underground, and had the structure that is provided with the concavity hooking part 5 that ends with described convex hooking part 4 cards in the bi-side of this inner layer material 2b.
Among the projecting strip part 2a that constitutes by hard vinyl chloride resin of Fig. 4, the spiral chute shape 2a3 ' of portion that is surrounded by the top wall portion 2a1 with certain width and thickness and the 2a2 of two side portion, 2a2 forms the dovetail groove shape, and with the opposed inner walls portion of the 2a2 of this two side portion, 2a2 as convex hooking part 4, the inner layer material 2b that forms with the groove shape 2a3 ' of the portion identical cross-sectional shape of this dovetail groove shape is embedded in this groove shape 2a3 ' of portion, makes the structure that forms the concavity hooking part 5 that ends with described convex hooking part 4 cards by the two side walls of the inclination of this inner layer material 2b.
Fig. 5 has a kind of like this structure: in the projecting strip part 2a that is made of hard vinyl chloride resin that is formed by the top wall portion 2a1 with certain width and thickness and the 2a2 of two side portion, 2a2, relative inner face at the 2a2 of two side portion, 2a2 forms convex hooking part 4,4, on the other hand, recessed the hooking part 5,5 that the bi-side of the inner layer material 2b that is made of the olefin-based resin in projecting strip part 2a are formed with and described convex hooking part 4,4 cards end.The structure of Fig. 6 is that several positions, bi-side of several positions of inner side surface of the 2a2 of two side portion, 2a2 in described projecting strip part 2a and the inner layer material 2b that engages with this inner side surface form a plurality of concavo- convex hooking part 4,5 that mutual card ends.
Fig. 7 is following structure: the spiral chute shape 2a3 of portion in the projecting strip part 2a that hard vinyl chloride resin constitutes forms ellipticity and makes this elliptoid both sides internal surface form concavity hooking part 5,5, on the other hand, the both side ends that is embedded in the elliptoid inner layer material 2b in the spiral chute shape 2a3 of portion forms convex hooking part 4,4.
Above-mentioned Fig. 3～projecting strip part 2a cross section that is made of hard vinyl chloride resin shown in Figure 7 is コ word shape or forms the door shape, but also make following structure: as shown in Figure 8, the two side ends that will be formed by the inner layer material 2b that the olefin-based resin constitutes at the bottom surface sections 2b1 with certain thickness and width is provided with the 2b2 of two side portion, the sectional shape of 2b2, on the other hand, the projecting strip part 2a that is made of hard vinyl chloride resin makes at the inner face that has with the top wall portion 2a1 ' of inner layer material 2b same widths and is formed with the described two side 2b2 of portion that is embedded in inner layer material 2b, the sectional shape of teat 2a4 in the 2b2 is at the bi-side of this teat 2a4 that engages one another and the 2b2 of two side portion of inner layer material 2b, the mating face of 2b2 forms concavo-convex hooking part 4,5.
Engage in the reinforcement helical protrusion bar 2 that the inner layer material 2b that is made of the olefin-based resin forms in the internal surface one of the projecting strip part 2a that constitutes by described hard vinyl chloride resin; spacing at the reinforcement helical protrusion bar 2 of helical coil on the tube body 1 is narrow and small, can strengthen the adequately protect occasion of tube body 1 of helical protrusion bar 2 by this; as Fig. 9, shown in Figure 10, also can make the structure of not ending portion 4,5 and only making the projecting strip part 2a that constitutes by hard vinyl chloride resin and engaging by the inner layer material 2b that the olefin-based resin constitutes by embossed card.
On the other hand, the described cylindric connector portions 3 that is set as one with the two end part outer circumferential face of the tube body 1 that is made of the olefin-based resin comprises as shown in Figure 2: the cylinder section 3a that is made of hard vinyl chloride resin; Be embedded in the inner layer material 3b that the olefin-based resin in the internal layer portion of this cylinder section 3a constitutes, this inner layer material 3b also inner layer material 2b with described reinforcement helical protrusion bar 2 is identical, it is same planar making internal surface towards the outer circumferential face side of tube body 1 expose to become the internal surface with cylinder section 3a, and this internal surface is melted on the outer circumferential face of the tube body 1 that is made of the olefin-based resin with this inner layer material 3b same resin integratedly.
As the concrete structure of this cylindric connector portions 3, has following structure: Yi Bian on one side be that 2～4 times of described reinforcement helical protrusion bar 2 and the wide cut that forms same thickness are strengthened helical protrusion bar 2 ' and be wound in a spiral on the end outer circumferential face of tube body 1 with the state fusion integratedly of the relative side of the next helical protrusion bar part of reeling of engage sides of the helical protrusion bar part of formerly reeling with width.That is, it is identical with described reinforcement helical protrusion bar 2 that wide cut is strengthened helical protrusion bar 2 ', comprising: the projecting strip part 2a ' that is made of hard vinyl chloride resin; The inner layer material 2b ' that constitutes by the olefin-based resin that is combined into one with the inner surface side of this projecting strip part 2a ', the internal surface of the inner layer material 2b ' that is made of this olefin-based resin is melted on the end outer circumferential face of the tube body 1 that is made of same resin integratedly, and such as mentioned above, Yi Bian the projecting strip part 2a ' that will be made of hard vinyl chloride resin is Yi Bian so that the fusion screw winding integratedly of the state on the side of the helical protrusion bar part that the engage sides relative with the helical protrusion bar part of previous coiling of next helical protrusion bar part of reeling formerly reeled.
Therefore, the top wall portion 2a1 ' that the wide cut that is formed by the state screw winding with the fusion that engages one another is strengthened the projecting strip part 2a ' in the helical protrusion bar 2 ' forms the cylinder section 3a of the cylindric connector portions 3 that is made of hard vinyl chloride resin, by in advance the outer surface of top wall portion 2a1 ' being formed the such tabular surface of diagram, the outer circumferential face of cylindric connector portions 3 can be formed on the level and smooth face that total length is a same diameter.Projecting strip part 2a ' and inner layer material 2b ' though not shown, identical with the structure of above-mentioned Fig. 3～shown in Figure 8, make the structure of this mating face card being ended mutually by concavo-convex hooking part 4,5.
The sub-A of synthetic resin pipe that the two end part that constitute like this have connector portions 3,3, because having flexual tube body 1 is formed by the olefin-based resin, can not use for a long time so the drawback of plasticizer can not take place, though tube body 1 is an olefin-based resin system, but can utilize the inner layer material 2b that constitutes by the olefin-based resin on the outer circumferential face that is melted in tube body 1 to keep strengthening the hard vinyl chloride resin system projecting strip part 2a of helical protrusion bar 2, possess the shape maintenance of compressive strength and pipe A by this hard vinyl chloride resin system projecting strip part 2a.
In addition, at the two end part of tube body 1 outer circumferential face, though this tube body 1 also is made of the olefin-based resin, but can cylindric connector portions 3 will be constituted, the cylinder section 3a of 3 outer portion forms with hard vinyl chloride resin, it is combined by the inner layer material 3b that the olefin-based resin constitutes with tube body 1 fusion all-in-one-piece, for these cylindric connector portions 3,3 the cylinder section 3a that constitutes by hard vinyl chloride resin, as shown in figure 11 can be by the chimeric joint that constitutes by hard vinyl chloride resin etc. of being bonded in short tube 6, on the inner peripheral surface of half in 6, make tube body 1 crooked so that this joint short tube 6,6 can with the body P that should be connected, the opening opposing end of P connects, and with this joint short tube 6,6 respectively with these bodys P, the open end of P is chimeric fixing, thereby passes through the sub-A of this synthetic resin pipe with two body P, P connects.
Now according to Figure 12, Figure 13 illustrates the manufacture method of the sub-A of synthetic resin pipe of formation like this simply, at first, on one side extrude the strip material 11 that constitutes by the olefin-based resin with certain width and certain thickness semi-molten state from the 1st shaping nozzle 21, on shaping running shaft 20, be wound into helical with a determining deviation simultaneously as everyone knows on one side by making the follow-up relative sidepiece of strip material portion strip material portion and that go ahead of the rest overlap and be melt into one with a sidepiece of the strip material portion of going ahead of the rest, thereby forming internal diameter is same diameter and has certain thickness tube body 1 in total length, then, at the strip material 11 that constitutes by described olefin-based resin, to dash forward that bar 12 is extruded and with on the strip material 11 that constitutes by the olefin-based resin of a determining deviation helical coil on the shaping running shaft 20 from the 2nd shaping nozzle 22, and described prominent bar 12 is to be provided in the groove shape 12a3 of portion of the projecting strip part 12a inner face side that the hard vinyl chloride resin by the semi-molten state constitutes by the inner layer material 12b that will be made of the olefin-based resin of semi-molten state to form, by making the inner layer material 12b that constitutes by this olefin-based resin integrated with the outer circumferential face fusion of the strip material 11 that constitutes by the olefin-based resin, outer circumferential face at tube body 1 forms reinforcement helical protrusion bar 2 gradually as shown in figure 12, the mating face of projecting strip part 12a and inner layer material 12b is by concavo-convex hooking part 4,5 and card ends and can not separate mutually, not shown.
Like this, when strengthening helical protrusion bar 2 helical coil on outer circumferential face and when forming the tube body 1 of specific length, as shown in figure 13, nozzle width is enlarged, make the prominent bar of extruding from the 2nd shaping nozzle 12 not change its thickness, only width is enlarged 2～4 times, be melted in integratedly on the outer circumferential face of tube body 1 on one side on the helical protrusion bar side partly that the helical protrusion bar engage sides relative with the helical protrusion bar part of previous coiling partly that the prominent bar 12 ' of width expansion is reeled the next one on one side formerly reeled, and be melted in integratedly while the internal surface that makes this width enlarge the inner layer material 12b ' that constitutes by the olefin-based resin in the groove shape 12a3 of portion of the projecting strip part 12a ' that constitutes by hard vinyl chloride resin of prominent bar 12 ' on the outer circumferential face of the tube body 1 that constitutes by the olefin-based resin with the spacing identical and be wound into helical with described projecting strip part 12, form connector portions 3 ' thus, this connector portions 3 ' comprising: the certain thickness cylinder section 3a ' that has that links to each other and form with the top wall portion of the projecting strip part 12a ' that is made of hard vinyl chloride resin; Be located in the internal layer portion of this cylinder section 3a ' integratedly and be melted in the inner layer material 12b ' that constitutes by the olefin-based resin on the outer circumferential face of described tube body 1.
When if 2 double-lengths that this connector portions 3 ' is formed up to the described cylindric connector portions 3 on the two end part that are arranged on tube body 1 are spent, then the reduced width of the prominent bar 12 that will extrude from described the 2nd shaping nozzle 22 becomes original width, is wound into helically with a determining deviation like that as mentioned above again on the outer circumferential face of the strip material 11 formed tube bodies 1 that utilize the olefin-based resin by the semi-molten state extruded from the 1st shaping nozzle 21 to constitute and forms reinforcement helical protrusion bar 2.
As mentioned above, carry out following two operations repeatedly and pass out to the forward end of shaping running shaft 20, two operations are: one side will have certain width and the certain thickness strip material 11 that is made of the olefin-based resin of semi-molten state is extruded, on one side it is wound in a spiral on the shaping running shaft 20 from the 1st shaping nozzle 21, continuous on one side formation has the prominent bar of certain thickness tube body 1 one side being extruded by the 2nd shaping nozzle 2 12 and is wound on this tube body 1 with a determining deviation, thereby partly forms reinforcement helical protrusion bar 2 in the specific length of tube body 1; After this operation, to enlarge from the prominent bar width that the 2nd shaping nozzle 22 is extruded, make this width enlarge prominent bar 12 ' and engage fusion making between the relative side on the tube body 1, form the connector portions 3 ' of certain-length, after by cooling unit (not shown) cooling and sclerosis, the rotary cutter that utilization is provided in shaping running shaft 20 forward end periphery sides cuts off the central part of the length direction of connector portions 3 ' successively, has connector portions 3 with strengthening on the two end part of tube body 1 that helical protrusion bar 2 is wound in a spiral in the certain-length on the outer circumferential face thereby be formed in, the sub-A of the synthetic resin pipe of 3 certain-length.
Claims (3)
1. synthetic resin pipe that two end part have connector portions, outer circumferential face at the soft synthetic resin tubulation body with flexual specific length is wound with the plastic reinforcement helical protrusion bar with certain width and thickness except two end part, and synthetic resin rounding tubular connector portions is set at the two end part outer circumferential face of described soft synthetic resin tubulation body, the two end part of described reinforcement helical protrusion bar are set respectively on the opposing side of these cylindric connector portions integratedly continuously, it is characterized in that, described soft synthetic resin tubulation body is made of the olefin-based resin, and strengthen the following formation of helical protrusion bar: the internal surface of the inner layer material that is made of the olefin-based resin is melted on the outer circumferential face of this soft synthetic resin tubulation body integratedly, and projecting strip part one on this inner layer material of the hard vinyl chloride resin formation with certain width is engaged, and, the inside portion of the cylinder section that is made of hard vinyl chloride resin of cylindric connector portions is embedded with inner layer material, and the inner peripheral surface of this inner layer material is melted in integratedly on the outer circumferential face of described soft synthetic resin tubulation body and by the olefin-based resin and constitutes.
2. two end part as claimed in claim 1 have synthetic resin pipe of connector portions, it is characterized in that being formed with the concavo-convex hooking part of mutual engaging on its mating face and being bonded into and separating of described reinforcement helical protrusion bar by hard vinyl chloride resin projecting strip part that constitutes and the inner layer material that constitutes by the olefin-based resin.
3. synthetic resin pipe that has connector portions as claim 1 or the described two end part of claim 2, it is characterized in that, to strengthen the helical protrusion bar so that engage the state helically of fusion between the two side portion of the projecting strip part that constitutes by hard vinyl chloride resin relative to each other and be wound on the two end part outer circumferential face that constitutes by described olefin-based resin, form cylindric connector portions with flexual tube body.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007127972A JP4911771B2 (en) | 2007-05-14 | 2007-05-14 | Synthetic resin pipe with joints at both ends |
| JP2007127972 | 2007-05-14 | ||
| JP2007-127972 | 2007-05-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101307844A true CN101307844A (en) | 2008-11-19 |
| CN100591963C CN100591963C (en) | 2010-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710162337A Active CN100591963C (en) | 2007-05-14 | 2007-09-28 | Synthetic resin pipe with joints at both ends |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4911771B2 (en) |
| CN (1) | CN100591963C (en) |
| HK (1) | HK1126266A1 (en) |
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| JP2011012782A (en) * | 2009-07-03 | 2011-01-20 | Evuc Kk | Pressure resistant synthetic resin pipe having flexibility |
| JP5673416B2 (en) * | 2011-07-22 | 2015-02-18 | 住友電装株式会社 | Corrugated tube tape fixing structure |
| JP5762890B2 (en) * | 2011-09-05 | 2015-08-12 | タイガースポリマー株式会社 | Flexible hose and manufacturing method thereof |
| CN102840390B (en) * | 2012-09-28 | 2015-07-29 | 詹春生 | Elastic displacement compensator |
| JP6177082B2 (en) * | 2013-10-02 | 2017-08-09 | タイガースポリマー株式会社 | Flexible hose |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2601377C2 (en) * | 1976-01-15 | 1985-03-28 | Agfa-Gevaert Ag, 5090 Leverkusen | Process for the preparation of outer back and front layers on photographic materials |
| JPS60172081A (en) * | 1984-02-16 | 1985-09-05 | シャープ株式会社 | Expanded pattern generator |
| JPH10227386A (en) * | 1997-02-14 | 1998-08-25 | Hitachi Metals Ltd | Resin composite tube fitting |
| JP2003214563A (en) * | 2002-01-23 | 2003-07-30 | Uc Industrial Co Ltd | Synthetic resin rigid pipe having flexible part |
| JP4357831B2 (en) * | 2002-12-09 | 2009-11-04 | エバック株式会社 | Synthetic resin pressure-resistant pipe body for flexible pipe joints |
-
2007
- 2007-05-14 JP JP2007127972A patent/JP4911771B2/en active Active
- 2007-09-28 CN CN200710162337A patent/CN100591963C/en active Active
-
2009
- 2009-05-19 HK HK09104569.4A patent/HK1126266A1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401200A (en) * | 2011-01-01 | 2012-04-04 | 马庆礼 | Locally thickened plastic flexible pipe |
| CN109550129A (en) * | 2012-12-04 | 2019-04-02 | 费雪派克医疗保健有限公司 | Medical tube and its manufacturing method |
| CN109550129B (en) * | 2012-12-04 | 2021-12-07 | 费雪派克医疗保健有限公司 | Medical tube and method for manufacturing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4911771B2 (en) | 2012-04-04 |
| JP2008281167A (en) | 2008-11-20 |
| CN100591963C (en) | 2010-02-24 |
| HK1126266A1 (en) | 2009-08-28 |
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