CN102809010B - Joint member, hose assembly including joint member, and method for manufacturing hose assembly - Google Patents
Joint member, hose assembly including joint member, and method for manufacturing hose assembly Download PDFInfo
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- CN102809010B CN102809010B CN201210135647.6A CN201210135647A CN102809010B CN 102809010 B CN102809010 B CN 102809010B CN 201210135647 A CN201210135647 A CN 201210135647A CN 102809010 B CN102809010 B CN 102809010B
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- flexible pipe
- joint component
- hose
- projection
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- Rigid Pipes And Flexible Pipes (AREA)
- Electric Vacuum Cleaner (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a joint member, a hose assembly including the joint member, and a method for manufacturing the hose assembly. The joint member is integrated with an end of the hose assembly and has a reception portion which defines a space for receiving the end of the hose assembly. The reception portion includes an inner portion inserting into the inside of the hose assembly, an outer portion covering the outside of the hose assembly, a cover portion connecting the inner portion and the outer portion, a protrusion portion preventing the end of the hose assembly from abutting against the cover portion, and a cut portion defining a hole arranged near the protrusion portion.
Description
Technical field
The present invention relates to link into an integrated entity with the end of flexible hose joint component, comprise flexible hose and the hose of joint component that becomes to be integrated with this flexible pipe and the manufacture method of this hose.In particular to make use of synthetic resin injection moulding, be applicable to and joint component that the end of flexible hose links into an integrated entity, comprise the hose of this joint component and flexible pipe and the manufacture method of this hose.
Background technique
Flexible hose may be used for multiple use, such as, can use in electric dust collector, suction apparatus and drainage equipment.Can by joint component simply and easily connecting hose and other utensils by making joint component and the end of flexible hose become to be integrated.In recent years, in order to flexible hose and joint component are formed one, employ and be called as post forming (オ ー バ ー モ ー Le De and be shaped) or the injection molding technology of insert-molding (イ ン サ ー ト is shaped).In the art, first the joint component manufactured is inserted the end of flexible hose, then hose end and joint component are imported the inside of injecting molding die, then to injecting resin in mould, by making this resin solidification, the end of flexible pipe is made to become to be integrated with joint component.
Such as, No. 2009-250273, Japanese Laid-Open Patent Publication discloses the method flexible hose with the concavo-convex bar of spirality being applied to described secondary shaping tech (insert-moulding technique).In the method, joint component is made up of inner piece and exterior part.Exterior part is provided with the spirality raised line with the concavo-convex bar screw-thread fit of flexible pipe.The axial position of hose end can be adjusted by rotating exterior part.Thereafter, injecting resin.According to this technology, can prevent to produce gap between hose end and inner piece.Therefore the resin injected in insert-molding operation can be prevented to drain to the problem of inside hose.
In technology disclosed in No. 2009-250273, Japanese Laid-Open Patent Publication, joint component is made up of three parts altogether.Therefore wishing the structure by simplifying joint component further, reducing manufacture cost and improving manufacturing efficiency.
The present inventor is studied simplification joint component.That is, present inventors studied the method that the one-piece type joint component 9 shown in Figure 11 is integrated with flexible pipe 2 one-tenth.That is, in the method, the terminal part of flexible pipe 2 is inserted in the flexible pipe accommodation section 92 be located on joint component.From resin injection mouth 99 to the gap injecting resin (so-called insert-molding) of hose end and accommodation section.By the resin of injection, flexible pipe 2 and joint component 9 are linked into an integrated entity.Understand fully the following fact, namely, if flexible pipe 2 is being pressed into the state hemostasis resin at position, the inside of flexible pipe accommodation section 92, then resin can not successfully throughout the circumference of flexible pipe 2, its result, flexible pipe 2 and joint component 9 can not link into an integrated entity well (easily producing shaping bad).
In addition, also guarantee that the space of ring-type is studied near the end of the flexible pipe 2 inserted.This is to improve resin spreading circumferentially (returning り こ body).Such as this limiting part that excessively can insert by adding restriction flexible pipe 2 in the depths, accommodation section 92 of joint component realizes.This structure that butt joint parts can be made to carry out shaping mould becomes very complicated.In addition, limiting part itself also barrier resin stream sometimes.Therefore specify that and be difficult in insert-molding operation, make resin smoothly throughout the circumference of flexible pipe only by additional insertion limiting part.
Summary of the invention
An object of the present invention is to provide a kind of joint component, this joint component has simple structure, and that can improve the shaping resin in insert-molding operation spreads state, and can suppress or prevent and the attachment portion of flexible pipe shaping bad.Another object of the present invention is manufacture efficiency and/or quality by utilizing described joint component to improve hose.
The present inventor has carried out wholwe-hearted research to reach described object.Its result completes the present invention.That is, the present inventor has found to arrange cut out portion at the special position of the flexible pipe accommodation section of joint component and be configured for the projection of restriction excessive hose insertion in this cut out portion.
The invention provides a kind of joint component, this joint component becomes to be integrated with the end of flexible pipe, and this joint component has accommodation section, and the space of the end of the described flexible pipe of collecting delimited in this accommodation section, and described accommodation section comprises: inside portion, inserts the inner side of described flexible pipe; Lateral part, covers the outside of described flexible pipe; Cap, connects described inside portion and described lateral part; Projection, stops the end of described flexible pipe to abut with described cap; And notch, delimit the hole be located near described projection, described projection is exposed from the described hole delimited by described notch, and described projection is arranged on the central authorities of described notch.
In addition, the present invention also provides a kind of hose, it flexible pipe comprising joint component as above and become to be integrated with this joint component.
In addition, the present invention also provides a kind of manufacture method of hose, it is for the manufacture of hose, the flexible pipe that this hose comprises joint component as above and becomes to be integrated with this joint component, the manufacture method of described hose comprises: the first operation, the end of described flexible pipe is inserted the accommodation section of described joint component; Second operation, imports mould the described joint component of the end being inserted with described flexible pipe, under the state making the end of described flexible pipe abut with described projection, described mould matched moulds is formed inner chamber; And the 3rd operation, to described inner chamber injecting resin, make described joint component become to be integrated with the end of described flexible pipe by this resin.
Described joint component has simple structure.In addition, in the insert-molding operation when making this joint component become to be integrated with flexible pipe, state that moulding resin spreads can be improved and can to suppress with the attachment portion of flexible pipe shaping bad.In addition manufacture efficiency and/or quality by utilizing such joint component can improve hose.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the electric dust collector outward appearance representing first embodiment of the invention.
Fig. 2 is the stereogram representing electric dust collector connecting tube (joint component) face shaping.
Fig. 3 A, Fig. 3 B and Fig. 3 C are the sectional views representing connecting tube shape, and Fig. 3 D is its plan view.
Fig. 4 is the stereogram representing state hose end being inserted connecting tube.
Fig. 5 is the stereogram representing the hose comprising connecting tube and flexible pipe.
Fig. 6 A to Fig. 6 D is the schematic diagram briefly expressing insert-molding operation.
Fig. 7 is the schematic diagram of the resin flow of the injection represented around the projection and notch of connecting tube.
Fig. 8 represents hose end to insert the stereogram of state of drawing in the connecting tube of second embodiment of the invention and electric wire.
Fig. 9 A is the stereogram of the connecting tube shape representing third embodiment of the invention, and Fig. 9 B is its sectional view.
Figure 10 A is the stereogram of the connecting tube shape representing four embodiment of the invention, and Figure 10 B is its sectional view.
Figure 11 is the partial sectional view representing the joint component of comparative studies example and the attachment portion structure of hose end.
Description of reference numerals
1,6,7,8 connecting tubes (joint component)
2 flexible pipes
5 electric wires
11 insertion parts
12 accommodation sections
13 inner cylinder portion
14 outer cylindrical portion
15 rising portion
17 projections
21 raised lines
63,73,83 inner cylinder portion
64,74,84 outer cylindrical portion
65,75,85 rising portion
67,77,87 projections
M inserts injecting molding die
S annulus
Embodiment
With reference to the accompanying drawings embodiments of the present invention are described.The invention is not restricted to other mode of execution shown below.The present invention also comprises the variation of these mode of executions.
First mode of execution
In the first embodiment, an example of the joint of the flexible hose of electric dust collector is described.Fig. 1 represents the overall appearance of the electric dust collector of present embodiment.This vacuum cleaner comprises main body of dust collector 40, connecting tube (joint component) 1, flexible pipe 2, handle operation portion 42, extension tube 43 and floor suction nozzle 44.
Flexible pipe 2 has flexibility.One end of flexible pipe 2 is connected with the intakeport be arranged on main body of dust collector 40 by connecting tube (joint component) 1.The other end of flexible pipe 2 is connected with handle operation portion 42.Handle operation portion 42 is connected with extension tube 43.In addition, extension tube 43 is connected with floor suction nozzle 44.
In the present embodiment, connecting tube 1 and flexible pipe 2 link into an integrated entity.That is, flexible pipe 2 and connecting tube 1 form hose.
Connecting tube 1 is the joint component of present embodiment.Joint component is the parts linked into an integrated entity with the end of flexible pipe 2.Joint component is used for flexible pipe 2 to be connected with miscellaneous part.Particularly, joint component has the joint be connected with flexible pipe.This joint has hollow cylindrical portion.The joint component of the vacuum cleaner of present embodiment, except connecting tube 1, also comprises the parts be directly connected with flexible pipe 2 in the component parts in handle operation portion 42.Below flexible pipe 2, connecting tube 1 and their linkage structure are described in detail.
Fig. 5 represents the stereogram of the hose comprising connecting tube 1 and flexible pipe 2.This hose links into an integrated entity by connecting tube 1 and flexible pipe 2 are molding by insert and make (will describe later about its details).In addition, Fig. 4 is the stereogram representing the state end of flexible pipe 2 being inserted connecting tube 1.As shown in the drawing, the end of flexible pipe 2 is inserted the side, one end of connecting tube 1.Both couple together thus.The insert-molding operation described after implementing in this condition.Thus both are linked into an integrated entity.Its result forms the hose of connecting tube 1 comprising flexible pipe 2 and link into an integrated entity with it shown in Fig. 5.
Flexible pipe (hose main body) 2 is flexible hoses of synthetic resin system (such as soft thermoplastic resin system).Flexible pipe 2 such as has the raised line 21 of spirality or annular in periphery and/or inner circumferential.In the present embodiment, the hose wall of flexible pipe 2 is the serpentine canal shape with the concavo-convex bar of spirality.The concavo-convex bar of hose wall is the raised line 21 of flexible pipe outer circumferential face.
Such flexible pipe 2 such as can by so-called spiral method or blow molding method manufacture continuously.In spiral method, the resin strip twist up with S tee section substantially, then bonding integral between the side edge part of the band adjoined each other.In addition, in the present embodiment, there is no particular limitation for the concrete shape of flexible pipe 2 and material.
Also there is no particular limitation for the soft synthetic resin of formation flexible pipe 2.Material as flexible pipe 2 preferably uses flexible pipe 2 to have the softer thermoplastic resin of ductility.Such resin such as comprises soft vinyl chloride resin (polyvinyl chloride resin), ethylene-vinyl acetate resin (EVA resin), ldpe resin (LDPE), acrylic resin (PP) and thermoplastic elastomer (TPE) etc.
Fig. 2 is the stereogram of the face shaping representing connecting tube 1.Fig. 3 A, Fig. 3 B and Fig. 3 C are the sectional views representing connecting tube 1 shape.The plan view that Fig. 3 D sees when being connecting tube 1 viewed from central axis direction.
Connecting tube 1 is by the integrated hollow circle tube parts synthetic resin injection moulding.One end of connecting tube 1 is insertion part 11.Insertion part 11 uses in connection electric dust collector main body 40 or another parts.The part being formed with insertion part 11 of connecting tube 1 can adopt arbitrary shape according to purposes.Such as connecting tube 1 can use as the parts in connecting hose 2 and handle operation portion 42.In this case, the shell of the part in handle operation portion 42 can be formed on connecting tube 1, come alternative insertion part 11.In this case, connecting tube 1 and handle operation portion 42 can be made to form as one.
The other end side of connecting tube 1 is provided with accommodation section 12.As shown in Figure 3A, annulus S delimited in accommodation section 12.This annulus S is formed as inserting and accommodates the end of the flexible pipe 2 be connected with connecting tube 1.Annulus S is inserted in the end of flexible pipe 2.In this space S, connecting tube 1 and flexible pipe 2 are interconnected.Specifically, accommodation section 12 comprises inner cylinder portion (inside portion) 13, outer cylindrical portion (lateral part) 14 and rising portion (cap) 15.In addition, according to purposes (engaging with another parts), accommodation section 12 also can have projection, pawl, raised line, slit, hole and opening portion etc.
Inner cylinder portion 13 is configured in the inner circumferential side of annulus S, is hollow cylindrical portion.Outer cylindrical portion 14 is configured in the side, periphery of annulus S, is hollow cylindrical portion.Space between inner cylinder portion 13 and outer cylindrical portion 14 becomes annulus S.Rising portion 15 is arranged in the mode of the outer circumferential face surrounding connecting tube 1, is hollow disc shape part.Rising portion 15 has and axially vertical face.Rising portion 15 is interconnected inner cylinder portion 13 and outer cylindrical portion 14.Rising portion 15 be configured at connecting tube 1 axially than inner cylinder portion 13 and outer cylindrical portion 14 position (central part axially of such as connecting tube 1) closer to insertion part 11.Therefore, accommodation section 12 be configured to described the other end side from annulus S to connecting tube 1 open wide.That is, accommodation section 12 has the opening portion opened wide to described the other end side.
In addition, as shown in Fig. 2, Fig. 3 A and Fig. 3 D, accommodation section 12 is provided with projection 17.Projection 17 be arranged at connecting tube 1 axially than the position (position of in figure 3 a than rising portion 15 keep left side) of rising portion 15 closer to the opening portion of accommodation section 12.In addition, projection 17 is arranged in the mode outstanding to annulus S.In the present embodiment, two positions symmetrical centered by the center of accommodation section 12 are provided with projection 17.In the present embodiment, projection 17 is square column type.
If flexible pipe 2 is inserted the annulus S of accommodation section 12, then in the position of the end abutment of projection 17 and flexible pipe 2, the insertion of flexible pipe 2 stops.That is, the end of flexible pipe 2 can be prevented directly to be connected in rising portion 15 by projection 17.That is, even if fully insert flexible pipe 2, also the end of flexible pipe 2 and rising portion 15 can be stoped to abut by projection 17, the space C being roughly ring-type can be left between the end of flexible pipe 2 and rising portion 15.The end of the flexible pipe 2 of insertion accommodation section 12 represented by dashed line in Fig. 3 A ~ Fig. 3 C.As shown in the drawing, the end abutment of flexible pipe 2 (with reference to Fig. 3 A (O-X cross section)) in projection 17.Therefore, between the end of flexible pipe 2 and rising portion 15, leave space C (with reference to Fig. 3 B (O-Y cross section) and Fig. 3 C (O-Z cross section)).
Projection 17 is the parts for being stoped flexible pipe 2 excessively to insert accommodation section 12 by the end abutment with flexible pipe 2.Therefore, projection 17 can have the various shape such as pin shape or plate shape.Projection 17 such as also can be arranged to give prominence to from any one inner cylinder portion 13 and outer cylindrical portion 14.Or as shown in Figure 3A, projection 17 also can be arranged to connect between inner cylinder portion 13 and outer cylindrical portion 14.The height of the typical radial direction of projection 17 can be such as 1/5 ~ 1/1 of the interval of inner cylinder portion 13 and outer cylindrical portion 14.
In addition, as shown in Figure 4, in accommodation section 12, be cut open in a part of region of rising portion 15 and the outer cylindrical portion near it 14.In the present embodiment, be formed with notch in four positions circumferentially substantially configured at equal intervals of rising portion 15, this notch delimit the window (hole) with given size.More particularly, this notch is arranged near projection 17.More than the length (width) circumferentially of this notch width for projection 17.Typically the width of each notch is about 1/20 ~ 1/4 of accommodation section 12 girth.The inner side (i.e. annulus S) of accommodation section 12 is communicated with by the notch of window shape with the space outerpace of accommodation section 12 (connecting tube 1).
About this notch, as other mode of executions described later, also can by except cutting rising portion 15 and outer cylindrical portion 14, also cut inner cylinder portion 13 and arrange, that is, notch also can comprise the cut out portion of inner cylinder portion 13.In addition, also can pass through not cut rising portion 15, but the part near the rising portion 15 of incision inner cylinder portion 13 and/or outer cylindrical portion 14, notch is set.In addition, also by not cutting inner cylinder portion 13 and outer cylindrical portion 14, and rising portion 15 can be cut to form notch.
As shown in Figure 4, in the present embodiment, notch is set mainly through incision rising portion 15 and outer cylindrical portion 14.These notchs are arranged on four positions circumferentially substantially configured at equal intervals.The width of notch is seen as about 4 times of projection 17 width from the axis of insertion part 11.
In addition, projection 17 is arranged on the notch of accommodation section 12.Therefore, the part that projection 17 is configured to the incision in accommodation section 12 is exposed to the outside of connecting tube 1.Like this, owing to arranging projection 17 at the notch of accommodation section 12, so the mould structure simplification being formed connecting tube 1 by the injection moulding of resin can be used in.Therefore the parts count (connecting tube 1 of this vacuum cleaner can be made to have one-piece type structure) of connecting tube 1 can be reduced.In addition connecting tube 1 miniaturization can be made.In addition, connecting tube 1 can be manufactured efficiently by the injection moulding of resin.In addition, in the present embodiment, projection 17 is arranged on two positions.Be not limited thereto, projection 17 also can be arranged on whole notchs.
As the material of connecting tube 1, harder synthetic resin can be used compared with the material of flexible pipe 2.Be particularly suitable for using the thermoplastic resins such as acrylic resin (PP), polyamide resin (PA) and acrylonitrile-butadiene-styrene resin (ABS resin).In addition, the reaction such as heat-curing resin material and the polyurethane resin curable resin materials such as rubber material can also be used.As will be described later, by inserts injection moulding, flexible pipe 2 is integrated with connecting tube 1 one-tenth.Therefore, the material of connecting tube 1 and flexible pipe 2 is preferably selected from the material resin material used inserts injection moulding to good cementability and intermiscibility.
Be described for the manufacture method (this manufacture method) obtaining the hose shown in Fig. 5 that connecting tube 1 and flexible pipe 2 linked into an integrated entity by so-called inserts injection moulding below.
First connecting tube 1 and flexible pipe 2 is manufactured.
Then, as shown in Figure 6 A and 6 B, the end of flexible pipe 2 is inserted the annulus S of the accommodation section 12 of connecting tube 1.Then the end of flexible pipe 2 is made to abut with projection 17.In addition, in this condition, as shown in Fig. 3 B (O-Y cross section) and Fig. 3 C (O-Z cross section), between the end of flexible pipe 2 and rising portion 15, space C is had.
Then, under the state of the annulus S of the insertion accommodation section, end 12 of flexible pipe 2, connecting tube 1 is installed into the inside of the mould M of insert-molding.Mould M is the die for injection molding of resin.This mould M has and can accommodate flexible pipe 2 and connecting tube 1 and by the inner chamber of the resin filling injected, make it possible to the hose shape (as shown in Figure 5) obtaining specifying.Also the core inserted inside flexible pipe 2 and/or connecting tube 1 can be had according to the different mould M of purposes.
After connecting tube 1 is fit into mould M inside, mould M matched moulds, injecting resin.In the present embodiment, resin is injected by the cast gate G to the cut out portion opening of accommodation section 12.In addition, also can from other injection location resins such as the injection hole be located at outer cylindrical portion 14 (not representing in figure).
The inner side of the notch arrival accommodation section 12 of window shape is passed through from the melting resin of cast gate G injection.Thereafter, the gap between the end of melting resin filling flexible pipe 2 and accommodation section 12 is utilized.By making resin solidification, the end of flexible pipe 2 and accommodation section 12 (connecting tube 1) are connected (joint) integral.In addition as shown in Figure 5, by utilizing resin P to carry out filling thus filling up the notch of accommodation section 12.The hose made thus does not have notch.
When resin P solidify terminate when, open mould M, from mould, take out the hose (Fig. 6 D) of the connecting tube 1 comprising flexible pipe 2 and be integrated with flexible pipe 2 one-tenth.Thus, insert-molding operation terminates.
As mentioned above, in this manufacture method, in the accommodation section 12 of connecting tube 1, be provided with projection 17.And the annulus S that this projection 17 is configured to inside, accommodation section 12 is outstanding.
Therefore, can the end of flexible pipe 2 press-in annulus S until under the state that abuts with projection 17, implement inserts operation.Therefore, the intubating length (flexible pipe 2 inserts the length of the part of annulus S) of flexible pipe 2 is certain.Its result can improve the quality of the hose obtained.
In addition, even if the end of flexible pipe 2 is fully pressed in accommodation section 12, because of the effect of projection 17, between the end of flexible pipe 2 and the rising portion 15 of connecting tube 1, space C is also left.Therefore, the resin injected from cast gate G is flowed along the circumference of accommodation section 12 glibly by this space C, can around arriving the side contrary with cast gate G.Therefore, the whole region of the cardinal principle of resin throughout accommodation section 12.Therefore can suppress to occur when being molding by insert and making connecting tube 1 be integrated with flexible pipe 2 one-tenth shaping bad.
In addition, in connecting tube 1, projection 17 is arranged on the notch of accommodation section 12.Therefore, when the resin space C passed through between the end of flexible pipe 2 and rising portion 15 flows, can not be blocked by projection 17.
In addition, preferably, projection 17 and/or notch have the shape that resin can be made to walk around projection 17 well.
Such as, in the present embodiment, in connecting tube 1, in the cross section of the axis along connecting tube 1, as shown in Figure 6 C, projection 17 and rising portion 15 are configured to arrangement mutually very close to each other., projection 17 is configured with in the notch cardinal principle central authorities of rising portion 15.Therefore, as shown in Figure 7, resin flows to the notch of rising portion 15 from the space C between the end and rising portion 15 of flexible pipe 2 in the mode walking around projection 17, then flow to space C.In addition, Fig. 7 is the amplification stereogram of notch and projection 17.In the figure, the example of resin side, the inside flowing to the right from the side at the moment in left side is illustrated.Like this, by projection 17 is located at notch, resin can be made easily to walk around the circumferential flow of projection 17 along accommodation section 12.
In this manufacture method, due to projection 17 is located near notch, so the resin injected from cast gate G is glibly along the circumferential flow of accommodation section 12, easily around to the side contrary with cast gate G.Therefore, the whole region of the cardinal principle of resin easily throughout accommodation section 12.Its result, can suppress to occur when being molding by insert and making connecting tube 1 be integrated with flexible pipe 2 one-tenth shaping bad better.
Particularly in accommodation section 12, in the central authorities of the notch by rising portion 15 being cut formation, be provided with the projection 17 narrower than kerf width.Thus, the resin encountering projection 17 can escape the space arranged to the notch by rising portion 15.So resin can walk around projection 17 because flowing within this space.Therefore, from the cross section (as shown in Figure 6 C) of the axis along connecting tube 1, even if rising portion 15 and projection 17 are configured to very close to each other, resin also can be walked around projection 17 and flow.Therefore, in the structure shown here, rising portion 15 and projection 17 can be configured the axially close of connecting tube 1.Thus, connecting tube 1 size in the axial direction can be shortened further.Due to connecting tube 1 miniaturization can be made, so the degrees of freedom of connecting tube 1 or hose design can be improved.
In addition, as shown in Figure 6 C, in the mould M that this manufacture method uses, corresponding with the notch being provided with projection 17, be provided with cast gate G.Cast gate G also can be arranged in the mode corresponding with the notch not arranging projection 17 on mould M.
In addition, not in the mode corresponding with described notch, cast gate G must be located on mould M., if arrange cast gate G like this, then can make the simplifying the structure of inner side injecting resin to accommodation section 12.Therefore the manufacture efficiency of hose can be improved.
In addition, in the present embodiment, there are two projections 17 accommodation section 12.Be not limited thereto, also can there be the projection 17 of more than three accommodation section 12.In this case, projection 17 can be configured on position symmetrical on accommodation section 12.Such as when being provided with three projection 17,120 degree, the circumferential interval that can projection 17 is arranged to along accommodation section 12.This is external when being provided with four projection 17,90 degree, the circumferential interval that can projection 17 is arranged to along accommodation section 12.
The present invention does not limit described mode of execution, can implement various distortion.Below other mode of executions of the present invention are described.In the following description, be described centered by the part different from described mode of execution, the detailed description to them is eliminated for identical part.In addition, also the part in described mode of execution and mode of execution shown below can be combined mutually or replaces described in mode of execution and a part in mode of execution shown below implement.
Second mode of execution
Fig. 8 represents the connecting tube (joint component) 6 of second embodiment of the invention.In connecting tube 6, electric wire 5 is through the inside of flexible pipe 2.Electric wire 5 is drawn from the outside of side direction connecting tube 6 in flexible pipe 2 by the notch of connecting tube 6.Specifically, the notch of connecting tube 6 extends to inner peripheral portion 63 (namely a part for inner peripheral portion 63 is also cut open) from rising portion 65.Through the electric wire 5 of flexible pipe 2 inside by extending to the window shape notch of inner peripheral portion 63, drawn (Fig. 8) by the outside to connecting tube 6.In this condition, flexible pipe 2, connecting tube 6 are molding by insert into electric wire 5 and are integrated.
The resin injected when insert-molding operation makes flexible pipe 2 be integrated with connecting tube 6 one-tenth, and fills cut out portion, fills up electric wire 5 around.Therefore be not only flexible pipe 2, electric wire 5 is also fixed on connecting tube 6.Do like this and the structure of connecting tube 6 can not be able to be made to become complicated being fixed on through the electric wire 5 in flexible pipe 2 on connecting tube 6.
3rd mode of execution
Fig. 9 A is the stereogram of the face shaping of the connecting tube 7 represented in third embodiment of the invention.Fig. 9 B is its sectional view.In connecting tube 7, compared with the connecting tube 1 of the first mode of execution, the shape of otch is different with the shape of projection.In connecting tube 7, to be provided with notch across the outer cylindrical portion 74 of accommodation section and the mode of rising portion 75.Outer cylindrical portion 74 is cut into can see the degree that projection 77 is exposed viewed from the radial direction of connecting tube 7.
In connecting tube 7, projection 77 has the shape from inner cylinder portion 73 to radial direction pin protruding outside.In addition, as comprise the axle of connecting tube 7 sectional view (Fig. 9 B) shown in, projection 77 is arranged at leaves the position of predetermined distance with rising portion 75 in the axial direction.
Using connecting tube 7 also identical with using the situation of connecting tube 1, in the insert-molding operation when manufacturing hose, can promote that the resin injected circumferentially spreads.Therefore generation can be suppressed shaping bad.In connecting tube 7, encounter when circumferentially spreading projection 77 resin can to the gap between raised 77 and rising portion 75, the dispersion such as the cut out portion of rising portion 75 and the cut out portion of outer cylindrical portion 74, thus projection 77 can be walked around.The obstruction that projection 77 therefore can be suppressed to become resin spread.
4th mode of execution
Figure 10 A is the stereogram of the face shaping of the connecting tube 8 representing four embodiment of the invention.Figure 10 B is its sectional view.Connecting tube 8, compared with the connecting tube of other mode of executions, is also that the shape of otch is different with the shape of projection.In connecting tube 8, only in the outer cylindrical portion 84 of accommodation section, be provided with notch.Outer cylindrical portion 84 is cut into can see the degree that projection 87 is exposed viewed from the radial direction of connecting tube 8.
In connecting tube 8, projection 87 has from inner cylinder portion 83 to radial direction square column shape protruding outside.In addition, as comprise the axle of connecting tube 8 sectional view (Figure 10 B) shown in, projection 87 is arranged at leaves the position of predetermined distance with rising portion 85 in the axial direction.
Using connecting tube 8 also identical with using the situation of connecting tube 1, in the insert-molding operation when manufacturing hose, can promote that the resin injected circumferentially spreads.Therefore generation can be suppressed shaping bad.In connecting tube 8, the resin encountering projection 87 when circumferentially spreading can disperse to the cut out portion of the gap between raised 87 and rising portion 85 and outer cylindrical portion 84, thus can walk around projection 87.The obstruction that projection 87 therefore can be suppressed to become resin spread.
In described multiple mode of executions, as an example the hose used in electric dust collector is illustrated.The present invention also can be applied to other technologies field, such as, can be widely used in the field such as suction hose and industrial flexible pipe.
In this external first mode of execution ~ the 4th mode of execution, flexible pipe 2 has drum, and the inner cylinder portion 13 and the outer cylindrical portion 14 that form accommodation section 12 also have drum respectively.Be not limited thereto, inner cylinder portion 13 can set arbitrarily according to the shape of flexible pipe 2 is different with the shape of outer cylindrical portion 14.Such as, when the sectional shape of flexible pipe 2 is rectangle, inner cylinder portion 13 and outer cylindrical portion 14 also correspondingly with it can become rectangle.
In this external first mode of execution ~ the 4th mode of execution, rising portion 15 is parts of hollow disc shape.Be not limited thereto, as long as rising portion 15 is inner cylinder portion 13 and outer cylindrical portion 14 very close to each other the lid parts be connected except notch, having which type of shape can.
In this external first mode of execution ~ the 4th mode of execution, flexible pipe 2 is flexible hoses.Be not limited thereto, even do not have flexible flexible pipe, joint component of the present invention (connecting tube) also can become be integrated with the end of this flexible pipe.
The present invention is owing to may be used for the technology that the end of joint component and flexible hose is linked into an integrated entity, and value is industrially large.
In addition, the manufacture method of joint component of the present invention and hose can be stated as described below.
First invention is the joint component linked into an integrated entity with the end of flexible hose.This joint component is the parts formed by the injection moulding of resin.One end of joint component is provided with accommodation section, the annulus of the end of the flexible pipe that this delimitation asylum, accommodation section connects.Accommodation section comprises inner cylinder portion, outer cylindrical portion and rising portion.Inner cylinder portion is the cylindrical shape part being configured in inner circumferential side, described space.Outer cylindrical portion is the cylindrical shape part being configured in side, periphery, described space.Rising portion is configured in the central side of axis of the joint component in described space.Rising portion is and inner cylinder portion and outer cylindrical portion interconnective hollow disc shape part.In accommodation section, be provided with projection, this projection stops hose end to abut with rising portion.The rising portion of accommodation section and/or the neighbouring part of rising portion are cut open in the predetermined portion of circumference.Described projection is arranged on the position at the otch place of accommodation section.
In the first invention, the end of flexible pipe and projection abut.Therefore, excessive hose can be suppressed to insert.Can realize in this first scope of invention, projection can be the various shape such as pin shape or plate shape.
In addition, a part of region circumferentially of accommodation section is cut open.For this otch, only can cut rising portion, also can from rising portion until inner cylinder portion and/or outer cylindrical portion be cut continuously.Also can not cut rising portion, only near rising portion, inner cylinder portion and/or outer cylindrical portion are cut in position.
In the first invention, the rising portion of accommodation section can be cut.In this case, preferably, the central part circumferentially of the otch position of rising portion is provided with projection (the second invention).
In addition, the 3rd invention is the manufacture method of the hose of the joint component comprising the first invention and the flexible hose becoming to be integrated with this joint component.3rd invention comprises: the first operation, the end of flexible pipe is inserted the accommodation section of joint component; Second operation, imports the end of flexible pipe and joint component the mould inside of injection moulding, matched moulds under the state making the end of flexible pipe abut with described projection, forms inner chamber; 3rd operation, to described inner chamber injecting resin, makes the accommodation section of joint component become to be integrated with the end of flexible pipe by the resin of injection.
In addition, in the 3rd invention, preferably from the gated injection resin (the 4th invention) of otch position of accommodation section being configured in joint component.In addition, in the 3rd invention, hose can also comprise the electric wire through inside hose.In this case, preferably, in the first operation, by the part of the incision of joint component, electric wire is drawn outside joint component, and in the 3rd operation, by utilizing the resin of injection to fill up described cut out portion, electric wire is fixed on (the 5th invention) on joint component.
According to the first invention, compared with technology disclosed in No. 2009-250273, Japanese Laid-Open Patent Publication, the parts count of joint component tails off.Therefore the modular construction of joint component can be simplified.In addition, the hose formed according to the joint component of use first invention, in the insert-molding operation when flexible pipe and joint component are linked into an integrated entity, the resin of injection can circumferentially spread well.Therefore the shaping bad of joint can be prevented.
In addition, in the second invention, the rising portion of accommodation section is cut.In addition, the central part circumferentially of the otch position of rising portion is provided with projection.Thus, the spreading of resin of injection improves, and can shortening joint parts size in the axial direction.Therefore can be improved the effect of design freedom of connector portions of flexible pipe.
In addition, in the 3rd invention, the joint component using the first invention in hose is being manufactured.This joint component and flexible pipe are linked into an integrated entity by so-called insert-molding.Thus, the structure of joint component can be simplified.Therefore, the operation of assembling flexible pipe and joint component can be simplified.Therefore, the manufacture efficiency of hose can be improved.In addition only by the accommodation section of flexible pipe press-in connector parts, the end of flexible pipe just can be made exactly to locate.That therefore also can suppress in insert-molding operation is shaping bad.The quality of hose can be improved.
In addition, according to the manufacture method of the 4th invention, the manufacture efficiency of hose can be improved further.In addition, according to the manufacture method of the 5th invention, also can electric wire be fixed on joint component simultaneously, therefore can improve the manufacture efficiency of hose further.
Claims (9)
1. a joint component, this joint component becomes to be integrated with the end of flexible pipe, it is characterized in that, this joint component has accommodation section, and the space of the end of the described flexible pipe of collecting delimited in this accommodation section,
Described accommodation section comprises:
Inside portion, inserts the inner side of described flexible pipe;
Lateral part, covers the outside of described flexible pipe;
Cap, connects described inside portion and described lateral part;
Projection, stops the end of described flexible pipe to abut with described cap; And
Notch, delimit the hole be located near described projection,
Described projection is exposed from the described hole delimited by described notch, and described projection is arranged on the central authorities of described notch.
2. joint component according to claim 1, is characterized in that, described notch is arranged on described cap.
3. joint component according to claim 1, is characterized in that, described notch is to arrange across the mode of described lateral part and described cap.
4. joint component according to claim 1, is characterized in that, described notch is to arrange across the mode of described lateral part, described inside portion and described cap.
5. joint component according to claim 1, is characterized in that, described notch is arranged on described lateral part.
6. a hose, is characterized in that, the flexible pipe comprising joint component according to claim 1 and become to be integrated with this joint component.
7. a manufacture method for hose, is characterized in that, for the manufacture of hose, and the flexible pipe that this hose comprises joint component according to claim 1 and becomes to be integrated with this joint component, the manufacture method of described hose comprises:
First operation, inserts the end of described flexible pipe the accommodation section of described joint component;
Second operation, imports mould the described joint component of the end being inserted with described flexible pipe, under the state making the end of described flexible pipe abut with described projection, described mould matched moulds is formed inner chamber; And
3rd operation, to described inner chamber injecting resin, makes described joint component become to be integrated with the end of described flexible pipe by this resin.
8. the manufacture method of hose according to claim 7, is characterized in that, in described 3rd operation, to the notch injecting resin of the accommodation section of described joint component.
9. the manufacture method of hose according to claim 7, is characterized in that,
Electric wire passes the inside of described flexible pipe,
In described first operation, by described notch, the outside of described electric wire to described joint component is drawn,
In the 3rd operation, fill up described notch by resin, thus described electric wire is fixed on described joint component.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011123519A JP5457399B2 (en) | 2011-06-01 | 2011-06-01 | Mouth member of hose and method of manufacturing hose assembly provided with mouth member |
| JP2011-123519 | 2011-06-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102809010A CN102809010A (en) | 2012-12-05 |
| CN102809010B true CN102809010B (en) | 2014-12-31 |
Family
ID=47232810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210135647.6A Expired - Fee Related CN102809010B (en) | 2011-06-01 | 2012-05-03 | Joint member, hose assembly including joint member, and method for manufacturing hose assembly |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5457399B2 (en) |
| CN (1) | CN102809010B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202015002874U1 (en) * | 2015-04-20 | 2016-07-22 | A.RAYMOND et Cie. SCS | A fitting for bonding a surface-structured end having at least one recess in its surface to a longitudinally extending tube having a fluid outlet; System with such a connector and use for such a connector |
| EP3331112B1 (en) * | 2015-07-31 | 2024-01-24 | Mitsubishi Electric Corporation | Deaeration tool, and switch gear electrical apparatus manufacturing method using deaeration tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0932787B1 (en) * | 1996-10-15 | 2001-09-26 | Plastiflex Europe N.V. | Process for applying a pull relief in a hose |
| JP2005279137A (en) * | 2004-03-31 | 2005-10-13 | Hitachi Home & Life Solutions Inc | Suction hose and vacuum cleanser having the same |
| CN2854276Y (en) * | 2005-11-08 | 2007-01-03 | 赵成飞 | Hose |
| CN201090880Y (en) * | 2007-07-14 | 2008-07-23 | 安徽中鼎密封件股份有限公司 | Rubber hose assembly with metal quick coupler |
| JP2009250273A (en) * | 2008-04-02 | 2009-10-29 | Tigers Polymer Corp | Connection method and connection structure of flexible hose |
| CN102818085A (en) * | 2011-06-10 | 2012-12-12 | 泰贺斯聚合物股份有限公司 | Hose assembly |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3685529B2 (en) * | 1995-08-10 | 2005-08-17 | 三洋電機株式会社 | Hose for vacuum cleaner and its manufacturing method |
| JP2001224542A (en) * | 2000-02-18 | 2001-08-21 | Matsushita Electric Ind Co Ltd | Hose unit for vacuum cleaner, and vacuum cleaner |
| JP2003159203A (en) * | 2001-11-28 | 2003-06-03 | Toshiba Tec Corp | Suction hose and vacuum cleaner having the same |
-
2011
- 2011-06-01 JP JP2011123519A patent/JP5457399B2/en not_active Expired - Fee Related
-
2012
- 2012-05-03 CN CN201210135647.6A patent/CN102809010B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0932787B1 (en) * | 1996-10-15 | 2001-09-26 | Plastiflex Europe N.V. | Process for applying a pull relief in a hose |
| JP2005279137A (en) * | 2004-03-31 | 2005-10-13 | Hitachi Home & Life Solutions Inc | Suction hose and vacuum cleanser having the same |
| CN2854276Y (en) * | 2005-11-08 | 2007-01-03 | 赵成飞 | Hose |
| CN201090880Y (en) * | 2007-07-14 | 2008-07-23 | 安徽中鼎密封件股份有限公司 | Rubber hose assembly with metal quick coupler |
| JP2009250273A (en) * | 2008-04-02 | 2009-10-29 | Tigers Polymer Corp | Connection method and connection structure of flexible hose |
| CN102818085A (en) * | 2011-06-10 | 2012-12-12 | 泰贺斯聚合物股份有限公司 | Hose assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102809010A (en) | 2012-12-05 |
| JP5457399B2 (en) | 2014-04-02 |
| JP2012251584A (en) | 2012-12-20 |
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