JP2009250328A - Hose mounted in rows and mounting method of plurality of hoses in rows - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hose in rows whereby a plurality of the hoses can be mounted in rows with a simple method. <P>SOLUTION: The hose mounted in rows includes n (n is two or more in integers) hoses, and a foaming body 10 having n through-holes 11 having an aperture diameter smaller than the outside diameter of the hose. The n hoses are mounted in rows by inserting the hoses into the through-holes 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a continuous hose in which a plurality of hoses are integrated, and a method for connecting a plurality of hoses.

  In order to supply cooling water, fuel, oil, air, etc. in automobiles, for example, a pair of forward and backward hoses are used as heater hoses at the connection between the engine and the heat exchanger in the passenger compartment. Multiple hoses are used. In recent years, since the gap with other parts is narrow in an engine room or the like, the hose is bent in a complicated manner and disposed between the parts.

  When multiple hoses are used at the same time, multiple hoses may be partially bundled to prevent damage to the hoses themselves due to friction between the hoses or to improve installation workability. It is generally used.

  As a method of bundling a plurality of hoses, (1) a method in which an adhesive is applied to the outer peripheral surface of the hose to bond the plurality of hoses together; There are known a method of being inserted and restrained, and a method of (3) inserting and fixing a hose into a rubber block having a plurality of through holes for inserting the hose.

  However, the conventional hose connecting methods have not always been satisfactory. That is, the method using the adhesive (1) has a problem that it is not easy to select an adhesive according to the material of the hose and to select the adhesive strength. Further, in the method using the band or tube of (2) above, since the contact area between the band or the tube and the hose that restrains the plurality of hoses is small, the displacement of the hose occurs, or the resin band or the heat shrinkable tube Hose may rub against each other. Furthermore, these methods have a problem in workability due to complicated post-processing, and in particular, the method using the fixing rubber block (3) above has a high rigidity of the rubber block, so that it does not slide with the hose. Unfortunately, it took a lot of time to insert the hose, and there was a problem in workability.

  Therefore, in the cited document 1, a method of connecting a plurality of hoses is disclosed in which a part of a plurality of hoses are juxtaposed in a mold and a resin is injected or injected into the mold to fix the hoses together. .

JP 2007-192275 A

  However, in the method described in the cited document 1, if the diameter of the hose changes, it is necessary to change the design of the mold accordingly. Therefore, there is room for improvement in workability even by the method of the cited document 1, and a continuous hose in which a plurality of hoses are reliably connected by a simpler method is required.

  Therefore, an object of the present invention is to provide a continuous hose in which a plurality of hoses are reliably connected by a simple method. Furthermore, this invention is excellent in workability | operativity, It aims at providing the connecting method of the multiple hose which can connect the multiple hose reliably by a simple method.

  As a result of various studies in view of the above problems, the present inventor has connected a plurality of hoses using a connecting member made of a foam having a plurality of through holes having an opening diameter smaller than the outer diameter of the hose. It has been found that the above problems can be solved by doing so.

That is, the present invention includes n hoses (n is an integer of 2 or more),
A continuous member made of a foam having n through holes whose opening diameter is smaller than the outer diameter of the hose;
The above-described problem is solved by a continuous hose in which the n hoses are connected in series by inserting the hose into the through hole.

Furthermore, the present invention is a method of connecting n hoses (n is an integer of 2 or more) using connecting members,
As the connecting member, a foam having n through holes whose opening diameter is smaller than the outer diameter of the hose is used.
The above problem is solved by a method characterized in that the n hoses are connected by inserting a hose into the through hole of the connecting member.

  In the continuous hose of the present invention, it is possible to easily cope with the dimensional change of the hose diameter, and it is possible to reliably connect a plurality of hoses by a simple method that does not go through a complicated process.

  The continuous hose of the present invention uses a foam having an opening diameter smaller than the outer diameter of the hose and having n (n is an integer of 2 or more) through-holes as a continuous member, and the number of hoses by the continuous member is n. It is characterized by linking up. One preferred embodiment of such a foam is shown in FIG. FIG. 1 is a perspective view of a foamed body 10 having two through-holes 11, in which the opening diameter of the through-holes 11 is made smaller than the outer diameter of a hose (not shown) connected to the through-holes 11. A plurality of hoses are connected in series by inserting the hoses one by one.

  Since the foam has an appropriate elastic restoring force for connecting the hose, the hose can be easily inserted into the through-hole of the connecting member made of foam, and the hose after the insertion can be tightened with a strong tightening force. Can be fixed. Therefore, by using the above-mentioned foam for connecting hoses, it is possible to easily cope with dimensional changes in the hose diameter, and it is possible to easily and surely connect hoses. Deviation can be suppressed to a high level. Further, since the hoses are not in direct contact with each other in the connecting member, it is possible to prevent the hoses from rubbing.

  The foam used as the continuous member preferably has an Asker C hardness of 5 ° to 70 °, particularly 30 ° to 50 °. A foam having such hardness has an appropriate elastic restoring force, and the hose can be connected easily and reliably. The Asker C hardness is a value determined at 25 ° C. according to “Spring Hardness Test Type C Test Method” described in Appendix 2 of JIS K7312-1996.

  The material of the foam is preferably a rubber foam. Rubber foam materials include polyurethane rubber, polyethylene rubber, polystyrene rubber, ethylene propylene rubber (EPR), ethylene propylene diene terpolymer rubber (EPDM), natural rubber, isoprene rubber, styrene butadiene rubber, polynorbornene rubber. , Butadiene rubber, nitrile rubber, chloroprene rubber, butyl rubber, halogenated butyl rubber, acrylic rubber, ethylene-vinyl acetate rubber (EVA), general rubber such as urethane rubber, silicone rubber, fluorine rubber, ethylene acrylic rubber, polyester elastomer, epichlorohydrin rubber, Examples thereof include polysulfide rubber, Hyperon (registered trademark), special rubbers such as chlorinated polyethylene, and thermoplastic elastomers. As a thermoplastic elastomer, arbitrary things can be selected and used from polyolefin type, a polyurethane type, a polyester type, a polyamide type, a polystyrene type etc., for example. These rubber raw materials can be used alone or in combination of two or more.

  The rubber foam is preferably ethylene propylene rubber, ethylene propylene diene terpolymer rubber, natural rubber, isoprene rubber, styrene butadiene rubber, polynorbornene rubber, butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, halogenated butyl rubber. Acrylic rubber, epichlorohydrin rubber and chlorinated polyethylene rubber are used, and ethylene propylene diene terpolymer rubber is particularly preferably used.

  As the rubber foam, it is possible to use the above-described rubber raw material foamed using a foaming agent.

  Examples of the blowing agent include sulfonyl hydrazides such as p, p′-oxybis (benzenesulfonyl hydrazide) (OBSH), benzenesulfonyl hydrazide and toluenesulfonyl hydrazide, azodicarbonamide (ADCA) and azo such as azobisisobutyronitrile. Organic foaming agents such as compounds, nitroso compounds such as N, N′-dinitrosopentamethylenetetramine, N, N′-dimethyl-N, N′-dinitrosotephthalamide; inorganic foams such as sodium bicarbonate and ammonium bicarbonate Agents. Among these, OBSH, ADCA or a foaming agent using these in combination is preferable. 1-20 mass parts is preferable with respect to 100 mass parts of rubber raw materials, and, as for the addition amount of a foaming agent, 3-10 mass parts is especially preferable. Further, the particle diameter of the foaming agent is preferably 10 μm or less, particularly preferably 5 μm or less.

  The rubber foam is preferably obtained by vulcanizing and foaming a raw material composition to which a vulcanizing agent is added in addition to a rubber raw material and a foaming agent.

  Examples of the vulcanizing agent include sulfur, sulfur compounds, organic peroxides, resins, amines, and the like. Examples of the organic peroxide include ketone peroxide, peroxyketal, hydroperoxide, dialkyl peroxide, diacyl peroxide, peroxyester, peroxycarbonate, and the like, preferably dicumyl peroxide. Examples of the resin include alkylphenols, formaldehyde resins, and halides thereof. Examples of amines include diaminodiphenylmethane, hexamethylenediamine carbamate, diaminodiphenyl ether, 2,2-bis [4- (4-aminophenoxy) phenyl] propane, and the like. Vulcanizing agents other than sulfur may be used alone or in combination of two or more. 0.5-20 mass parts is preferable with respect to 100 mass parts of rubber raw materials, and, as for the addition amount of a foaming agent, 1-10 mass parts is especially preferable.

  Additives such as vulcanization accelerators, vulcanization accelerators, foaming assistants, softeners, plasticizers, fillers, anti-aging agents, antioxidants, pigments, colorants, anti-mold agents, etc. You may select and add suitably. For example, vulcanization accelerators and vulcanization accelerators composed of aldehyde ammonia, aldehyde amines, guanidines, thiazoles, sulfenamides, turums, dithiocarbamic acids, xanthogenic acids, thioureas, etc .; urea-based, salicylic acid And foaming aids such as benzoic acid and the like.

  In order to produce a foam, a rubber raw material, a foaming agent, and, if necessary, other additives such as a vulcanizing agent are mixed at about 50 to 90 ° C. with a kneader such as a kneader or a mixing roll, The obtained raw material composition is molded and then heated and foamed, preferably vulcanized and foamed.

  There are no particular limitations on the method of molding the raw material composition, and known methods such as injection molding, extrusion molding, blow molding, calendar molding, compression molding, transfer molding, laminate molding, cast molding, and inflation molding should be used. Can do.

  The foaming treatment may be appropriately performed according to the foaming temperature of the used foaming agent. The foaming treatment may be performed by heating the formed raw material composition for 10 to 120 minutes at a temperature of 120 to 450 ° C., preferably 150 to 350 ° C., more preferably 180 to 300 ° C. When the raw material composition contains a vulcanizing agent, the vulcanization treatment may be performed simultaneously with the foaming treatment. The foaming treatment can also be performed under pressure for the purpose of adjusting the expansion ratio.

  In order to form the through hole at a predetermined position of the foam, a conventionally known perforation processing method such as a punching method can be used. In addition, the through holes can be formed by a known molding method such as extrusion molding or injection molding.

  What is necessary is just to determine the planar view shape of the through-hole which a foam has according to the shape of the hose to insert, such as a perfect circle shape, an ellipse shape, and a rectangular shape. The plan view shape of the through hole is preferably a circular shape such as a perfect circle shape or an elliptical shape. In the case of a perfect circle, the diameter is the opening diameter. In the case of an ellipse, the long diameter is the opening diameter. In the case of a rectangular shape, the length is the opening diameter on the long side.

  The plurality of through holes for inserting the hose are preferably arranged in parallel to the length direction of the foam. Moreover, it is preferable to provide a predetermined distance between the plurality of through holes in the foam. Thereby, a fixing member can be inserted in the site | part in which the through-hole of a foam is not formed, and a continuous hose can be easily fixed to to-be-fixed members, such as a vehicle body of a motor vehicle. As the fixing member, for example, a screw, a pin, a wire, a bolt, a nut, a spacer, a clamp, a locking clip, or the like can be used.

  In addition to the through hole for inserting the hose, the foam may further have a through hole for inserting the fixing member and an opening (hole) for attaching the fixing member. For example, as shown in FIG. 2, in the foam 10 having the two through holes 11, a through hole 12 for inserting the fixing member may be further formed between the through holes 11.

  What is necessary is just to determine the number of the through-holes for inserting the hose in a foam according to the number of the hose connected, and is the same as the number of the hose connected. Moreover, what is necessary is just to determine the site | part in which a through-hole is formed in a foam according to the number of hoses and the use of a continuous hose. For example, as shown in FIG. 1, a plurality of through-holes such as a foam 10 in which two through-holes 11 are arranged in parallel, and a foam 10 in which three through-holes are arranged in parallel as shown in FIG. For example, the foam may be arranged. Moreover, it is not limited to such a foam, For example, the foam 10 etc. by which the through-hole 11 was arrange | positioned as shown in FIG. 4 may be sufficient.

The opening diameter of the through-hole which a foam has is smaller than the outer diameter of the hose inserted. The ratio (r ₁ : r ₂ ) between the outer diameter (r ₁ ) of the hose and the opening diameter (r ₂ ) of the through-hole of the foam before inserting the hose is 1: 0.99 to 1: It is preferably 0.6, particularly 1: 0.95 to 1: 0.8. Thereby, a hose can be continuously connected simply and reliably by the moderate elastic restoring force of a foam.

  The opening diameter and opening ratio of the through holes in the foam are preferably determined in consideration of the strength of the foam, the elastic restoring force, the shape of the hose to be connected, the number of the hose, and the like. Specifically, the opening ratio of the through holes is preferably 50 to 90%, particularly 60 to 80%. In the present invention, the “opening ratio” means the total area of the openings of the through holes with respect to the area (A) before the through holes are formed on the surface of the foam where the openings of the through holes are exposed. It is a ratio of (B), and is a value calculated by the formula [aperture ratio (%) = (B / A) × 100].

  Further, the foam and the fixing member may be integrally formed so that a part of the fixing member is inserted into a portion where the through hole of the foam is not formed.

  As an example, FIG. 5 shows a cross-sectional view of the foam 10 integrally formed so that the locking portion 21 of the clamp 20 is inserted. Here, the clamp 20 includes a blade-like locking portion 21, a clamp element 23a, a clamp element 23b, a claw 22a, and a claw receiver 22b. The shapes of the clamp element 23a and the clamp element 23b are substantially semicircular, and the clamp element 23a and the clamp element 23 form a single circle by inserting and fastening the claw 22a to the claw receiver 22b. By inserting another member (not shown) such as a hose or a cable into the clamp element 23a and the clamp element 23, and inserting and fastening the claw 22a into the claw receiver 22b, the foam 10 can be removed. It can fix to the member of.

  In addition to this, FIG. 6 shows a cross-sectional view of the foamed body 10 integrally formed so that the fixing flange 31 of the locking clip 30 is inserted. Here, the locking clip 30 includes a fixed flange 31 such as a disk-like shape provided at the base and a locking portion 32. By inserting the locking portion 32 into a through hole or the like provided in another member such as an automobile or a building, the foam 10 can be fixed to the other member.

  Moreover, it is preferable that the solid rubber layer 40 is arrange | positioned on the outer periphery of the foam 10 as shown in FIG. Thereby, deterioration of a foam can be suppressed, and also it can suppress that a foam expands outside at the time of hose insertion, and can improve restraint force.

  The solid rubber layer preferably includes a rubber component and a reinforcing filler.

  Rubber components include natural rubber, polyisoprene rubber, styrene-butadiene copolymer rubber, polybutadiene rubber, styrene-isoprene copolymer rubber, butadiene-isoprene copolymer rubber, styrene-butadiene-isoprene copolymer rubber, styrene-acrylonitrile- Preferred examples include butadiene copolymer rubber. These rubber components are preferably vulcanized with a vulcanizing agent. Examples of the vulcanizing agent include those used for rubber hoses described later.

  Examples of the reinforcing filler include silica, carbon black, short fibers, resin powder, inorganic powder such as calcium carbonate, organic powder, talc, clay, silicon rubber, and the like. Of these, calcium carbonate, clay, mica and the like are preferable. The average particle size of the reinforcing filler is preferably 10 to 50000 nm, more preferably 100 to 5000 nm.

  The thickness of the solid rubber layer is preferably 0.1 to 5.0 mm, more preferably 0.5 to 2.0 mm.

  In order to form a solid rubber layer on the outer periphery of the foam, for example, by extruding a cylindrical composition or the like by kneading the above-described rubber component, reinforcing filler, and, if necessary, a vulcanizing agent, etc. What is necessary is just to arrange | position on the outer periphery of a foam. In order to vulcanize the rubber component, the composition containing a vulcanizing agent may be heated at 160 to 180 ° C. for 10 to 40 minutes.

  Although the shape of the whole foam is not particularly limited, it is preferably a columnar shape such as a cylinder, a cylinder, a truncated cone, or a polygonal column. The length of the foam may be determined according to the length of the hose to be continuously provided, but is preferably 0.5 to 20 cm, and particularly preferably 2 to 10 cm.

  In the continuous hose of the present invention, a plurality of hoses are connected in series by inserting the hoses into the through holes of the foam.

  What is necessary is just to use a hose according to the use of a continuous hose. As the hose, an automobile hose, a water supply hose, a gas hose, or the like is preferably used. Especially, since the continuous hose of this invention can suppress the friction between hoses and the position shift of a hose, it is preferable to be especially used for the motor vehicle which a vibration tends to add to a hose. Therefore, it is preferable to use an automobile hose as the hose.

  Examples of the automobile hose include a brake hose, a radiator hose, a heater hose, and an air cleaner hose. From such a viewpoint, the hose is preferably a rubber hose. Specific examples of rubber hoses include ethylene vinyl acetate copolymer rubber (EVA), chlorosulfonated polyethylene rubber (CSM), acrylic rubber (ACM), ethylene acrylic rubber (AEM), hydrogenated nitrile rubber (HNBR) natural rubber, Examples include styrene butadiene rubber (SBR), butadiene rubber (BR), nitrile rubber (NBR), and chloroprene rubber (CR). These may be used individually by 1 type, and 2 or more types may be mixed and used for them.

  The rubber hose is preferably vulcanized with a vulcanizing agent. Examples of the vulcanizing agent include sulfur, sulfur compounds, organic peroxides, resins, amines, and the like. Examples of the organic peroxide include ketone peroxide, peroxyketal, hydroperoxide, dialkyl peroxide, diacyl peroxide, peroxyester, peroxycarbonate, and the like, preferably dicumyl peroxide. Examples of the resin include alkylphenols, formaldehyde resins, and halides thereof. Examples of amines include diaminodiphenylmethane, hexamethylenediamine carbamate, diaminodiphenyl ether, 2,2-bis [4- (4-aminophenoxy) phenyl] propane, and the like. Vulcanizing agents other than sulfur may be used alone or in combination of two or more.

  The layer structure of the rubber hose is not particularly limited, and a known layer structure can be employed. For example, a structure having only a single layer containing the above-described rubber material, a structure having an inner surface layer and a reinforcing layer, an inner surface layer, and a reinforcing layer And a structure having an outer surface layer. The inner surface layer and the outer surface layer include the rubber material described above, and it is preferable to use the same rubber material for the inner surface layer and the outer surface layer. In addition, the reinforcing layer includes a simple metal such as iron, copper and aluminum, a hard metal wire such as an alloy such as stainless steel, a polyester fiber, a vinylon fiber, a polyethylene terephthalate (PET) fiber, a polyethylene naphthalate (PEN) fiber, Reinforcing yarns made of organic fibers or inorganic fibers such as nylon fibers, aramid fibers, and other carbon fibers can be used. The reinforcing layer is formed as a braided layer or a spiral layer in which these reinforcing yarns are wound in a braided layer or a direction in which they are paired with each other by braiding or spirally winding them alone or in combination of two or more.

  The shape of the rubber hose may be determined according to the use of the continuous hose, such as a straight shape or a bent shape having a bent portion at least partially.

  In order to connect the n hoses using the above-mentioned foam as the connecting member, it is performed by inserting the hoses one by one into the n through holes of the foam. The hose to be inserted is preferably a rubber hose after vulcanization treatment. Thereby, when inserting a hose, it can prevent that a hose deform | transforms.

  The site | part connected in multiple hoses should just be at least one part of the intermediate part except the both ends of a rubber hose. As a preferred embodiment, a top view of a continuous hose 60 in which two hoses 50 are continuously connected using the foam 10 is shown in FIG.

  EXAMPLES Hereinafter, although an Example is shown and this invention is demonstrated concretely, this invention is not limited to a following example.

Example 1
100 parts by mass of EPDM of ethylene 60 mol%, propylene 10 mol%, polyene 30 mol%, Mooney viscosity ML _{1 + 2} (100 ° C.) 65, azodicarbonamide 15 parts by mass and sulfur 2.5 parts by mass are kneaded with a kneader. After extrusion, a rubber foam was obtained by heating at 160 ° C. for 30 minutes for foam vulcanization. Thereafter, circular through holes 11 having a diameter of 16 mm were formed in a predetermined portion of the rubber foam by a punching method with a pitch of 30 mm between the cores, and a rubber foam 10 (length 4 cm) as shown in FIG. 1 was obtained.

  Next, by inserting one straight hose (inner diameter 9 mm, outer diameter 17 mm, thickness 8 mm, length 40 cm) 40 made of acrylic rubber into each through hole of the obtained rubber foam, A continuous hose 60 as shown in FIG. 8 was obtained. The hose 50 can be easily inserted into the through hole 11, and the hose 50 after the insertion is fixed with a strong fastening force of the rubber foam 10.

It is a perspective view of the foam (continuous attachment member) which concerns on one Embodiment of this invention. It is a perspective view of the foam (connected member) which concerns on other embodiment of this invention. It is a perspective view of the foam (connected member) which concerns on other embodiment of this invention. It is a perspective view of the foam (connected member) which concerns on other embodiment of this invention. It is sectional drawing of the foam integrally formed so that the latching | locking part of a clamp may be inserted. FIG. 3 shows a cross-sectional view of the foam 10 that is integrally molded so that the fixing flange 31 of the locking clip 30 is inserted. It is a perspective view of the foam which has a solid rubber layer. It is a top view of the continuous hose of the present invention.

Explanation of symbols

10 Foam (continuous component),
11 Through hole,
DESCRIPTION OF SYMBOLS 12 Fixing member insertion through-hole 20 Clamp 21 Blade-shaped locking part 22a Claw 22b Claw receptacle 23a Clamp element 23b Clamp element 30 Locking clip 31 Fixing flange 32 Blade-shaped locking part 40 Solid rubber layer 50 Hose,
60 Continuous hose.

Claims (8)

n hoses (n is an integer of 2 or more);
A continuous member made of a foam having n through holes whose opening diameter is smaller than the outer diameter of the hose;
The said hose is inserted in the said through-hole, and the said n hoses are connected continuously, The connected hose characterized by the above-mentioned.   The continuous hose according to claim 1, wherein the foam has an Asker C hardness of 5 ° to 70 °.   The foam is ethylene propylene rubber, ethylene propylene diene terpolymer rubber, isoprene rubber, styrene butadiene rubber, polynorbornene rubber, butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, halogenated butyl rubber, acrylic rubber, epichlorohydrin rubber. The continuous hose according to claim 1 or 2, comprising a foam of at least one rubber selected from the group consisting of chlorinated polyethylene rubber.   The ratio between the outer diameter of the hose and the opening diameter of the through-hole of the foam before inserting the hose is 1: 0.99 to 1: 0.6. The continuous hose according to any one of the above. It is a method for connecting n hoses (n is an integer of 2 or more) using connecting members,
As the connecting member, a foam having n through holes whose opening diameter is smaller than the outer diameter of the hose is used.
A method of continuously attaching the n hoses by inserting a hose into a through hole of the connecting member.   The method according to claim 5, wherein the foam has an Asker C hardness of 5 ° to 70 °.   The foam is ethylene propylene rubber, ethylene propylene diene terpolymer rubber, isoprene rubber, styrene butadiene rubber, polynorbornene rubber, butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, halogenated butyl rubber, acrylic rubber, epichlorohydrin rubber. And a foam of at least one rubber selected from the group consisting of chlorinated polyethylene rubbers.   The ratio of the outer diameter of the hose and the opening diameter of the through-hole of the foam before inserting the hose is 1: 0.99 to 1: 0.6. 8. The method according to any one of items 7.

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