CN1789068A - Piping structure for transporting a fuel, resin tube for transporting fuel in the piping structure and producing method thereof - Google Patents
Piping structure for transporting a fuel, resin tube for transporting fuel in the piping structure and producing method thereof Download PDFInfo
- Publication number
- CN1789068A CN1789068A CN 200510129677 CN200510129677A CN1789068A CN 1789068 A CN1789068 A CN 1789068A CN 200510129677 CN200510129677 CN 200510129677 CN 200510129677 A CN200510129677 A CN 200510129677A CN 1789068 A CN1789068 A CN 1789068A
- Authority
- CN
- China
- Prior art keywords
- pitch tube
- fuel
- pipeline
- pitch
- retainer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
A piping structure for transporting a fuel arranged between an engine and a fuel tank, is constructed by use of a resin tube that is formed in a straight tubular shape. The resin tube is flexed and bent at one or more points along a longitudinal direction of the resin tube to define one or more bent portions and thereby is provided with a predetermined bent shape. The resin tube is fixed in a motor vehicle body so as to retain the bent portions and thereby assembled in the motor vehicle body.
Description
Technical field
The present invention relates to a kind of pipeline configuration that is used for transfer the fuel, be useful in the pitch tube that is used for transfer the fuel of this pipeline configuration and the method for producing this pitch tube.
Background technology
Adopt pitch tube to come transfer the fuel in the past, for example the fuel in the Fuel Tank was flowed to driving engine.
This pitch tube with on the motorcar body side, cooperate plumbing connection to be configured for the plumbing system of transfer the fuel.
In order to make pitch tube and to cooperate plumbing connection, once adopted a kind of adaptor union (quick connector) in the past, its allows quickly and easily and cooperates plumbing connection.
For example disclosed this adaptor union in the patent documentation 1 below.Figure 12 and 13 has shown the example of the concrete structure of a connector.
In Figure 12 and 13, Reference numeral 200 expressions one pitch tube.Reference numeral 202 indicates to cooperate pipeline with pitch tube 200 bonded assemblys.
Press-fit portion 218 is will be along axially being pressed into cooperation or being pressed into the part that is assemblied in the pitch tube 200.Press-fit portion 218 forms circumferential rib 220 in a plurality of axially spaced positions on its external peripheral surface.Circumferential rib 220 has the interface of jagged edges, and is provided with the peak of acute angle.
Press-fit portion 218 is pressed into and is assemblied in the pitch tube 200, is thus connected device main body 208 and is connected to this pitch tube 200.
At this moment, be formed in the inside face of an end that circumferential rib 220 on the external peripheral surface of press-fit portion 218 is engaged in pitch tube 200, and making its radial expansion and distortion because of being pressed into assembling of press-fit portion 218, pitch tube 200 is held and is stopped thus, is pulled out preventing.
Simultaneously, press-fit portion 218 is formed with cannelure, and O shape ring 222 is remained on herein.O shape ring 222 provides gas tight seal between press-fit portion 218 and pitch tube 200.
Above-mentioned retainer retaining part 216 is to be used to keep retainer 210 simultaneously retainer 210 to be contained in wherein part.Connector body 208 is connected to by retainer 210 and cooperates pipeline 202.
On the other hand, retainer 210 is resin component elements, and its integral body is roughly annular, and can be along radial elastic or distortion flexibly.
By latch recess 226 is latched on the stopping part 224 of retainer retaining part 216, retainer 210 is held the state that device retaining part 216 remains on axial restraint.
When cooperating pipeline 202 in axially being inserted into retainer 210, inner periphery cam face 228 adjacency and guide engagement projectioies 204 are used for further moving axially.Then, along with bump bonding 204 moves, inner periphery cam face 228 is done as a whole along diametric(al) elastic expansion retainer 210, and allows bump bonding 204 to pass through thus.
As long as arriving engagement concave portions, bump bonding 204 divides a position of 225 then, retainer 210 is made as a whole its original shape that just is back to, and bump bonding 204 and engagement concave portions divide 225 to divide in 225 or slide therein one another along the axial engagement concave portions that is assembled in with becoming fixed relationship.
On the other hand, when retainer 210 is in the retainer retaining part 216 that axially is inserted into connector body 208, excircle cam face 230 is in abutting connection with stopping part 224, thus will be as a single-piece retainer 210 along the diametric(al) elastic shrinkage, and the radial shrinkage effect of latch recess 226 with retainer 210 be latched on the stopping part 224.
Simultaneously, retainer 210 is provided with operation joint (tab) 231 in its end portion (proximal part or axial outer end, left end portion in the figure).Retainer 210 also can be because of applying radially inner application force to operation joint 231 and being shunk along diametric(al).
In adaptor union 206, retainer 210 at first remains in the retainer retaining part 216 of connector body 208.Then in this state, cooperate pipeline 202 along axially being inserted in the retainer 210.
During this period, retainer 210 since cooperate pipeline 202 bump bonding 204 and along the elastic expansion of diameter expansion direction.Divide 225 in case bump bonding 204 arrives engagement concave portions, retainer just shrinks along diametric(al), and bump bonding 204 is bonded on engagement concave portions and divides in 225.
On the other hand, retainer 210 can at first be connected to and cooperate pipeline 202.Then in this state, cooperate pipeline 202 with and on retainer 210 can be inserted in the connector body 208.
During this period, retainer 210 is in case along the diametric(al) contraction, and then, as long as latch recess 226 arrives a position of stopping parts 224, retainer 210 just becomes big along diametric(al), so that latch recess 226 is latched on the stopping part 224.
Lining 214 and be provided with and remain in the far-end of connector body 208 with respect to retainer retaining part 216 as the O shape of containment member ring 212.When cooperating pipeline 202 to be inserted in the connector body 208, O shape ring 212 or O shape ring 212 and lining 214 and the insertion end part 232 that cooperates pipeline 202 are insertion end part 232 with respect to airtight contact of the outer surface of the front end (axial inner ends) of bump bonding 204 (from the outer surface of the fore-end of bump bonding 204 extended insertion end parts 232), and provide gas tight seal between cooperation pipeline 202 and connector body 208.
Shown in Figure 12 (A), in adaptor union 206, use two O shape rings 212.But shown in Figure 12 (B), can in adaptor union 206, use single O shape ring 212, to dwindle the size of adaptor union 206.
From top description, be appreciated that by using this adaptor union 206, under simple effect, can easily pitch tube 200 be connected with cooperating pipeline 202.
By the way, as being used for being installed on the end of pitch tube 200 at this adaptor union described in the patent documentation 2.This adaptor union 300 is as Figure 14 and the same formation like this shown in 15, thereby along with the direction of axis normal the relative thin retainer 302 of wall thickness being installed on the retainer retaining part 304.
314 end and place, other end and V-arrangement main body 316 link into an integrated entity the retainer 302 (referring to Figure 14 (B)) of looping form in the bonding part respectively by making pair of engaging part (retainer side engagement part, retainer side latch portion) 314.Narrowed width by making retainer 302 is inserted in retainer 302 in the retainer retaining part 304 by the opening 318 of retainer retaining part 304, makes retainer 302 return to its original width (being its original-shape) then in retainer retaining part 304.Retainer 302 is positioned at wherein with its original-shape.
When will cooperate pipeline (with its shape with cooperating the slightly different form of pipeline 202 shown in Figure 12) when being inserted in the retainer 302, the bump bonding 204 that cooperates pipeline 202 is 314 inclined lead surface or inclined lead cam face 320 in connection with the bonding part.Then, bump bonding 204 radially outward pushes inclined lead cam face 320, and advances retainer 302 is broadened.In case bump bonding 204 passes bonding part 314, retainer 302 narrows down a little, thereby bonding part 314 engages (referring to Figure 15) along axial direction with bump bonding 204.Here, bonding part 314 enters the notch portion (main body side stopping part) 322 of retainer retaining part 304 and engages with retainer retaining part 304 along axial direction.Like this, cooperate pipeline 202 and retainer 302 or connector body 306 firmly fixing in the axial direction.And, by the pressures partially 324 that radially inwardly pushes retainer 302 distance between bonding part 314 is widened, thereby can will cooperate pipeline 202 from adaptor union 300, to haul out.As shown in figure 16, in some cases, sealing cover part 326 is according to radially outward rising so that do not allow pressures partially 324 outwardly directed modes be formed in the opening 318.
Perhaps, also can adopt as at the adaptor union as shown in the patent documentation 3.This adaptor union 400 is as Figure 17 and the same formation like this shown in 18, thereby horse-shoe shaped retainer 402 is installed on the retainer retaining part 404 along the direction with axis normal.This adaptor union 400 also is provided with and is used for verification and the bonded assembly detection means 406 that cooperates pipeline 202.
This adaptor union 400 have with integral body be a connector main body (whole being formed from a resin here) 408, one retainer 402 of columniform form, as the O shape of containment member ring 410, one lining 412 and detection means 406 (referring to Figure 17 and 18 (B)).
Detection means 406 is made box-shape and is comprised a pair of elastic arm 416 and be positioned at locking groove 418 on the end of elastic arm 416.Detection means 406 with the direction of axis normal on be installed on the periphery of retainer retaining part 404 and and be arranged in the retainer retaining part 404 according to the mode that locking groove 418 is engaged with bottom surface portions 420 respectively.
In the time will cooperating pipeline 202 to be inserted in the connector body 408, bump bonding 204 advances along with pushing away inclined lead surface or inclined lead cam face 424 and (that is to say in connection with lining 412, cooperate pipeline 202 correctly to be connected) with connector body 408, the detection ratchet 424 of retainer 402 is radially outward pushed by bump bonding 204 and moves, the joint that detects ratchet 424 and receive the recess 430 of slit 428 is removed, allow thus retainer 402 with the direction of axis normal on further promoted.Retainer 402 with the direction of axis normal on when further being promoted, the bonding part of retainer 402 (retainer side engagement part) 431 engages with the bump bonding 204 that cooperates pipeline 202, the elastic arm 416 of detection means 406 is by guiding bead 432 motions of retainer 402 simultaneously, the locking groove 418 of elastic arm 416 is subjected to radially outward pushing, and has removed the joint of locking groove 418 and bottom surface portions 420 thus.Like this, cooperate pipeline 202 and connector body 408 to tighten together firmly in the axial direction.In this firm fastening relation, allow detection means 406 to separate with connector body 408.That is to say, only when cooperating pipeline 202 correctly to be connected, just detection means 406 can be removed from connector body 408 with adaptor union 400.Simultaneously, retainer 402 is located to engage with the limit flange 434,436,438 (main body side stopping part) of connector body 404 along the rear end surface of axial direction, middle recessed portion and front end surface (retainer side stopping part) at retainer 402.
In this plumbing system, by petrolift 236, under certain pressure, transport fuel in (providing) Fuel Tank 234 by service duct, and ejection from the fuel injector 240 of the cylinder 242 of driving engine.Unnecessary fuel is back to Fuel Tank 234 by backward channel 244.In view of this plumbing system of design and cost-cutting, preferably, aforesaid pipeline and pitch tube weight are lighter, and have than minor diameter.
Simultaneously, the pitch tube that is used for transfer the fuel for example is equipped with the pitch tube of adaptor union to be assemblied in motorcar body according to predetermined layout of beam line usually.In general, in the formed or molded step of pitch tube pitch tube according to the predetermined whole initial formation of layout of beam line or be molded as required bending or curved shape (initially bending or crooked pitch tube).Then, this initial bending or crooked pitch tube are delivered to the assembling place and on the assembling place, be assemblied in the motorcar body.
But the bending or the bent resin pipe that initially form or be molded as bending or curved shape for example obtain in following steps.The straight tube-like pitch tube is assemblied in the restriction mould pitch tube is remained bending or curved shape, as a whole pitch tube or restriction mould are placed in the stove for example 150 ℃ to 160 ℃ heating 20 to 30 minutes, to form bending or bending, from stove, take out the restriction mould then, pitch tube (disclosed in the patent documentation 4 for example) is removed in cooling from mould.But in this manufacture method, need or exist many manufacturing steps, cause manufacturing cost to increase.Herein, need be and the corresponding pitch tube of pipe arrangement type therefore should make various types of pitch tubes with self-propelled vehicle type, strict saying.This also is a factor that increases cost.
Be used for the conventional confguration of pitch tube of transfer the fuel being used for assembling, pitch tube initially forms or is molded as required bending or curved shape, and for example by the plumbing connection that cooperates on adaptor union and two ends that are positioned at pitch tube.But except top problem, this also causes following problem.
When vibration passes to by adaptor union when cooperating pipeline bonded assembly pitch tube by cooperating pipeline from motorcar body, with respect to cooperating pipeline to rotate, containment member for example remains on O shape ring in the adaptor union and is worn and destroys this pitch tube thus with adaptor union.Therefore, cause sealing property to reduce such problem.
The means that are used to address this problem have been proposed in the patent documentation 5 below.But, in this case, still have the problem that needs special proprietary connector and geometrical clamp.
Above this problem especially appear in such self-propelled vehicle, wherein driving engine is connected with trailing wheel according to the mode that rises and falls with trailing wheel, promptly a kind of like this self-propelled vehicle, when wherein rising and falling in trailing wheel vibration or vibration and with respect to motorcar body or vehicle frame, driving engine is also along with trailing wheel rises and falls with respect to motorcar body or vehicle frame.
Driving engine and Fuel Tank are arranged and are fixed in the two-wheeled vehicle on the identical vehicle frame therein, are used for transfer the fuel and can vibrate for the pitch tube that is equipped with adaptor union of driving engine greatly, and therefore the problem above can be so unobvious.But, especially therein driving engine in the two-wheeled vehicle that trailing wheel rises and falls (for example, disclosed in the patent documentation 6 and 7 below) owing to be equipped with the pitch tube of adaptor union to be subjected to bigger vibration and the pitch tube vibration is bigger, so be easy to generate top problem.
[patent documentation 1] JP-A-11-201355
[patent documentation 2] JP-B-2641863
[patent documentation 3] JP-A-2004-251319
[patent documentation 4] JP-A-6-190913
[patent documentation 5] JP-A-9-269088
[patent documentation 6] JP-Y-7-55192
[patent documentation 7] JP-Y-7-46617
Summary of the invention
According to above-mentioned situation, one object of the present invention is to provide a kind of novel pipeline configuration that is used for transfer the fuel, wherein adopts the pitch tube that goes out with low-cost production in number of steps still less.In this pipeline configuration, the pitch tube that for example is assemblied in the motorcar body keeps not being subjected to from the next vibration effect of motorcar body transmission with being stabilized.Another object of the present invention is to provide a kind of novel resins pipe that is adopted in this novelty pipeline configuration.And a further object of the present invention is to provide the novel method of the novel resins pipe that a kind of production adopted in this novelty pipeline configuration.
According to the present invention, provide a kind of novel pipeline configuration or a kind of novel structure that is used for pitch tube is assemblied in motorcar body that is used for transfer the fuel between driving engine and the Fuel Tank that be arranged in.This pitch tube is arranged between driving engine and the Fuel Tank, is used for transfer the fuel, and for example is equipped with a connector.The geometrical clamp that this structure that is used for the pipeline configuration of transfer the fuel or is used for assembling pitch tube comprises the pitch tube that is used for transfer the fuel that forms the straight tube-like shape and is used for pitch tube is fastened on the motorcar body or pitch tube is fixed on motorcar body and thus pitch tube is assemblied in motorcar body.This pitch tube along one or more positions of the longitudinal direction of pitch tube according to the flexible deflection and the crooked or bending of this pitch tube, thereby form a sweep or one or more sweep, and this pitch tube is for example whole thus is provided with predetermined curved shape.That is to say, by making the crooked and distortion of the pitch tube that forms the straight tube-like shape according to its flexibility, thereby make this pitch tube become predefined curved shape.This geometrical clamp is securely fixed in pitch tube or sweep in the motorcar body according to a kind of like this mode of sweep of this pitch tube with clamping by clamping pitch tube or sweep.Here, owing to needn't pitch tube be formed predetermined curved shape at the production stage place of pitch tube, so can reduce the required cost of this pitch tube.And, for example pitch tube with the form of straight tube-like shape up in installation step, being assemblied in the motorcar body.This pitch tube is provided with predetermined curved shape for example with being assemblied in the self-propelled vehicle in the predefined curved shape of ball and the step in being assemblied in motorcar body.Therefore, needn't or prepare the pitch tube of particular type at every kind of different layout of beam line at every type self-propelled vehicle.Advantageously, the pitch tube of same or same type can be widely used in various types of self-propelled vehiclees or various layout of beam line.
On the end of pitch tube, a connector is installed, for example be used for pitch tube is fastening or be fixed in the motorcar body before make pitch tube and cooperate plumbing connection.In this case, pitch tube be assemblied in the motorcar body simultaneously by adaptor union or by adaptor union with cooperate plumbing connection.For example, the relative rotation motion of driving system of adaptor union and cooperation pipeline is subjected to the restriction of geometrical clamp with respect to the effect of contraction of pitch tube.
The zone that geometrical clamp can be arranged through each side of the sweep of pitch tube is fixed on the sweep that comes fastening pitch tube in the motorcar body.This structure can make pitch tube stably remain in the curved shape form.For example, the zone of the both sides of sweep is clamped by geometrical clamp respectively.And, because the zone of the both sides of sweep fixedly secures in motorcar body, so when the vibration from motorcar body is applied on the pitch tube, can makes the vibration of pitch tube or vibrate less.In addition, clamping or restriction are also given pitch tube by geometrical clamp, and pitch tube self can not rotate thus.Therefore, for example adaptor union can be with respect to not cooperating pipeline to rotate, and perhaps pitch tube can be with adaptor union with respect to cooperating pipeline to rotate.This solved simultaneously in adaptor union containment member for example O shape ring wear and tear owing to the relative rotation motion of driving system with respect to the relative rotation motion of driving system of fit tube or pitch tube of pitch tube and destroy with respect to pitch tube and adaptor union, reduced the problem of sealing property thus.Therefore, can remain on adaptor union and cooperate good seal performance between the pipeline for a long time.
Geometrical clamp can be metal clip.
The pitch tube that is adopted or be equipped with the pitch tube of adaptor union in formed or molded step, to be the form of straight tube-like shape in the present invention, and be provided with predetermined curved shape in being assemblied in motorcar body the time.This can reduce production costs.
Simultaneously, replacement turns back to plumbing system (so-called reverse-flow type fuel system) in the Fuel Tank at the wherein residual fuel shown in Figure 19, gradually adopt another kind of plumbing system in recent years, be so-called no reverse-flow type fuel system, wherein do not provide residual fuel and be that the amount that is consumed offers driving engine from Fuel Tank only required fuel quantity.In this no reverse-flow type fuel system, only provide required fuel quantity.Therefore, if adopt its diameter and pitch tube identical in the plumbing system shown in Figure 19 in this no reverse-flow type fuel system, then fuel is accumulated easily.And the fuel that is in the accumulation state evaporates in pipeline under certain barometric pressure in engine room, and engine revolution is unstable easily as a result.In this case, preferably adopt its external diameter can reach minor diameter pitch tube, so that can not produce the fuel accumulation for 6mm (more preferably being approximately 5mm).For having for example mini self-propelled vehicle of put-put especially for the so-called cyclecar of two-wheeled vehicle, three-wheeled motor vehicle and all-terrain vehicle (ATV), the preferred minor diameter pitch tube that adopts this minor diameter pitch tube or its internal diameter to be approximately 4mm, for example internal diameter is approximately the minor diameter pitch tube of 3.5mm, so that prevent the fuel accumulation.In addition, more preferably, adopt its internal diameter to be approximately the minor diameter pitch tube of 3mm, for example its internal diameter is approximately the minor diameter pitch tube of 2.5mm.Usually, the minor diameter pitch tube is compared with the major diameter pitch tube and is had higher flexibility.Specifically, this minor diameter pitch tube has excellent flexibility.Therefore, when in installation step, making the crooked or bending of this minor diameter pitch tube, this minor diameter pitch tube be difficult to break (kinking).And, can be crooked and be bent into predetermined curved shape by making this minor diameter pitch tube without difficulty, thus this minor diameter pitch tube is assemblied in the motorcar body.In addition, from the design of plumbing system with reduce production costs, this minor diameter pitch tube is gratifying.
Preferably can adopt a kind ofly like this to be used for the pipeline configuration of transfer the fuel or to be used to assemble structure according to pitch tube of the present invention, wherein pitch tube by adaptor union be integrally formed in the parts that fixedly secure in motorcar body in cooperate plumbing connection.There is such problem in this cooperation pipeline that is fixed in the motorcar body, and promptly pitch tube rotates with respect to the cooperation pipeline with adaptor union owing to the vibration of motorcar body easily.But, according to the present invention, effectively prevented this relatively rotating, and can keep excellent sealing performance.And, can adopt the pipeline configuration that is used for transfer the fuel according to the present invention that pitch tube is assemblied in self-propelled vehicle, thereby driving engine is connected on the trailing wheel or is attached thereto to be integral with trailing wheel and rises and falls or rise and fall integratedly with trailing wheel in this self-propelled vehicle, and in this case, can prevent effectively that pitch tube from vibrating or rotational motion.
Geometrical clamp may be constructed to the retained part that has substantially annular, and has and be used for allowing before clamping pitch tube pitch tube be assemblied in opening in the retained part along passing it with the direction of axis normal.This geometrical clamp so constitutes, thereby closes geometrical clamp being fixed on when being clamped in pitch tube in the retained part simultaneously in the motorcar body opening, so that pitch tube is assemblied in the motorcar body.Geometrical clamp with this structure makes that operating personal can be easy in the assembling place pitch tube bending is fixed on pitch tube in the motorcar body simultaneously by this geometrical clamp.Simultaneously, because opening is closed after being fixed on pitch tube in the motorcar body by geometrical clamp, even so under very big oscillation force acts on situation on the pitch tube, also limit this pitch tube and geometrical clamp and carried out relative motion, avoided for example defective of pitch tube and geometrical clamp friction thus.
Here employed adaptor union can have: a) for example with a connector main body of the form of whole cylinder form, it comprises that being positioned at the retainer retaining part and being positioned on another end of connector body of this connector body on the end of axial direction is used for and pitch tube bonded assembly connecting bridge; B) retainer, it remains in the retainer retaining part or on it, for example be used for be positioned at the outer surface that cooperates pipeline on the pipe side bonding part with projection or form of grooves, and be positioned at and cooperate the axial end portion spaced positions place of the insertion end part of pipeline; And c) containment member, it for example is arranged in connector body another end with respect to the retainer retaining part.For example, this retainer is fixedly securing the insertion end part that cooperates pipeline or be inserted in the cooperation pipeline in the connector body along axial direction.Containment member and the outer surface that cooperates pipeline or the insertion end that is inserted in the cooperation pipeline in the connector body partly contact with respect to cooperating pipeline or its insertion end partly to form sealing.And the retainer retaining part can constitute the form of socket shape, and connecting bridge can constitute and is pressed into mating part and is engaged in the pitch tube to be pressed into.In this adaptor union, retainer and connector body separate and form or form as one with connector body, and be designed to can be along radial direction elasticity or plastic deformation.Retainer can have a retainer side latch portion.This retainer side latch portion from the retainer retaining part radially inwardly or inboardly cooperate or be latchable on the main body side stopping part on the side of the retainer retaining part that is formed on connector body so that retainer maintains static along axial direction.This retainer can also have at least one in inner periphery cam face and the excircle cam face.The inner periphery cam face makes this retainer elasticity on diameter enlarge in the time will cooperating pipeline to be inserted in the retainer.On the other hand, the excircle cam face makes retainer elastic shrinkage on diameter when retainer being inserted in the retainer retaining part.
Simultaneously, be curved shape flexible bending or distortion and, probably can produce scratch by the holding part office that geometrical clamp clips when the pitch tube that forms the straight tube-like shape at pitch tube by the geometrical clamp assembling and when fixedly securing in motorcar body.And, when this pitch tube has scratch, worry also that in addition pitch tube can damage rapidly.Therefore, require when pitch tube is clamped by geometrical clamp, on pitch tube, can not produce this scratch.And crooked or distortion will change the location of a part of pitch tube that will be clamped by geometrical clamp according to the curved shape of pitch tube so that when being assemblied in the motorcar body with various curved shapes at the pitch tube that forms the straight tube-like shape.Therefore, on which that part of pitch tube on the pitch tube, can not produce any scratch no matter require by the geometrical clamp clamping yet.
According to the present invention, also provide a kind of and be arranged in the used new type resin pipe that is used for transfer the fuel of pipeline configuration that is used for transfer the fuel between driving engine and the Fuel Tank, perhaps be used for pitch tube is assemblied in the structure of motorcar body.This pitch tube is arranged between driving engine and the Fuel Tank and is used for transfer the fuel, and for example is equipped with a connector.This pitch tube comprises that its external diameter can reach the minor diameter pitch tube main body of 6mm and be laminated to the outside of the pitch tube of being clamped by geometrical clamp or the resilient clamp layer on the outer surface.The resilient clamp layer has predetermined wall thickness and is covered with the pitch tube main body along whole effective length of carrying out diastrophic pitch tube or whole live part.
Here, the pitch tube of highly flexible forms or is molded as the straight tube-like shape, and it has and for example can reach the external diameter of 6mm and mainly be applicable to the cyclecar two-wheeled vehicle especially with put-put.This pitch tube of form that becomes the straight tube-like shape is curved shape flexible bending or distortion in being assemblied in motorcar body the time, then by the geometrical clamp assembling and fixedly secure in motorcar body.In the present invention, the resilient clamp layer with predetermined wall thickness is laminated on pitch tube external side of main body or the outer surface along the whole effective length of the diastrophic pitch tube that carries out pitch tube, is used for by the geometrical clamp clamping.Therefore, being laminated to this holding sheet on pitch tube external side of main body or the circumferential surface has prevented to produce scratch at pitch tube during by the geometrical clamp clamping on the pitch tube main body effectively.
And, because holding sheet is along the whole basically length setting of pitch tube main body, thus therein pitch tube its arbitrarily or dispersed locations also can effectively prevent from pitch tube or pitch tube main body, to produce scratch in by the situation of geometrical clamp clamping.Therefore, operating personal can be assemblied in pitch tube in the motorcar body in good state.
That is to say, according to the present invention, operating personal can be clamped the optional position of pitch tube along its longitudinal direction by geometrical clamp, and can not produce scratch on the pitch tube main body, can provide pitch tube thus, and this pitch tube is laid in assembling with various desired curved shapes.
Simultaneously, in common four-wheeled vehicle, in general according to circumstances use the outer surface of the protective cover covering resin pipe of making by rubber.
But in this case, the protective cover setting is used for protecting pitch tube not damaged by slungshot, and protection or postpone pitch tube and melt in situation such as on fire.
There are not special requirement on the pitch tube of the cyclecar with put-put of the narrow-bore tube that is used for having adopted its external diameter can reach 6mm therein especially two-wheeled vehicle transfer the fuel, protective cover to be set.
In the present invention, the holding sheet of pitch tube is not to be provided with to be used for protecting pitch tube avoiding the infringement of slungshot or flame, but only is used to protect pitch tube to avoid owing to being subjected to the negative effect that the geometrical clamp clamping causes.Therefore, the wall thickness of this holding sheet decides according to this purpose.
For this reason, in the present invention, preferred its wall thickness of holding sheet is 0.7 to 1.3mm.In having the pitch tube of holding sheet that wall thickness is 0.7mm, when pitch tube was clamped by geometrical clamp, the pitch tube main body that is difficult to adequately protect was to avoid occurring scratch.To avoid occurring the scratch aspect, it is just enough to form the holding sheet with 1.3mm wall thickness from protection resin tube body.On the contrary, in the pitch tube of wall thickness, probably during pitch tube is assemblied in motorcar body, becomes curved shape or can go wrong by in the geometrical clamp fixing resin pipe etc. in pitch tube flexural deformation greater than the holding sheet of 1.3mm.
By the way, when this holding sheet is arranged to along the whole length of pitch tube especially from an end of body that another end covers this pitch tube, following problem can appear.
When pitch tube by adaptor union when cooperating plumbing connection, pitch tube was connected with adaptor union before being assemblied in pitch tube in the motorcar body.This adaptor union can comprise as will the tubulose adapter sleeve part that be pressed into mating part of pressure fitted in pitch tube, and this adapter sleeve partly is provided with for example O shape ring of the annular seat component that is assemblied on its outer surface.
At this moment, the end of pitch tube main body becomes horn-like (outwards opening) to expand to be engaged in wherein so that adapter sleeve partly is pressed into.But, cover this pitch tube main body to the holding sheet of the end of pitch tube main body and after outwards open the end of pitch tube main body, overlap on the end face that opens part.And, partly be pressed into when being engaged in the pitch tube at the adapter sleeve of adaptor union, overlap a part of holding part branch on the end face that opens part and damage containment member O shape ring for example on the outer surface that is assemblied in the adapter sleeve part.Perhaps, adapter sleeve part can so be pressed into and be engaged in the pitch tube, thereby is fastened or blocked by containment member with the overlapping that part of holding sheet of end face.Therefore, probably the sealing property between the adapter sleeve partial sum pitch tube of adaptor union descends.
It is therefore preferable that from end of pitch tube main body or terminally relatively this holding sheet is removed predetermined length so that expose the end or the opposed end of this pitch tube main body.This structure can address the above problem.That is to say, catch with the end face that opens part overlapping when this holding sheet outwards opens in the end of pitch tube.And, partly be pressed into when being engaged in the pitch tube at the adapter sleeve of adaptor union, be assemblied on the outer surface of adapter sleeve part containment member for example O shape ring can not be damaged, and the end of holding sheet can not fastened by sealed member.Therefore, solved the problem that sealing property descends.
In this structure, preferably, holding sheet is removed 2 to 8mm length from an end (described end) of pitch tube main body or terminal relatively (described terminal relatively).Just, holding sheet end or opposed end are from the described end of pitch tube main body or terminal relatively 2 to 8mm the length of removing.
In the pitch tube here, at first according to the such mode of whole length of covering from an end to its another end with the holding sheet lamination or be formed on the pitch tube main body.Then; make be substantially columniform anti-cut device from a longitudinal end of pitch tube main body and holding sheet or each longitudinal end promptly from one vertically terminal or each vertically terminal beginning between pitch tube main body and holding sheet, slide so that protect this pitch tube main body.And, at it terminal or its each terminal near annular cutting holding sheet, and by anti-cutting device protection resin tube body in order to avoid when being cut by cutting blade annular end or removal of each annular end with holding sheet on the pitch tube main body.According to this production method of the present invention, preferably can under the situation of not damaging the pitch tube main body, from the outer surface of pitch tube main body, remove an end of holding sheet or the predetermined length of each end.
Simultaneously, pitch tube forms or is molded as the straight tube-like shape, and fastening or be fixed in the motorcar body simultaneously when being assemblied in pitch tube in the motorcar body flexible bending or be deformed into curved shape by geometrical clamp.In this case, the flexible resin pipe bends owing to it is flexible easily.But operating personal is difficult to find this pitch tube kinking, I'm afraid that therefore this pitch tube is operated personnel and is assemblied in the motorcar body in kinking.
In this case, in transfer the fuel, have obstacle.Perhaps, can produce such problem, thereby the kinking of pitch tube causes the stress in pitch tube bigger, and pitch tube is degenerated in the position that stress produces easily.
In addition, also worry because the stress that is produced,, and reduced sealing property thus so the containment member in cooperating pipeline and being assemblied in adaptor union for example contacts O shape ring part.
Top explanation is based on the typical case of narrow-bore tube.But, be formed or be molded as the straight tube-like shape at pitch tube, and fastening or be fixed on the motorcar body by geometrical clamp, soft crooked or when being deformed into crooked shape in the assembling of pitch tube in motorcar body simultaneously, have this problem too.
Need prevent that pitch tube is assemblied in the motorcar body under the situation of bending, perhaps need pitch tube can not be subjected to quicken irrational distortion that pitch tube damages.Also need the assembling of pitch tube can not cause the pitch tube bending or between the containment member that cooperates pipeline and adaptor union, form the part contact, and reduce sealing property thus.Therefore need to satisfy this pitch tube of above-mentioned requirements.
According to the present invention, provide a kind of and be arranged in the used new type resin pipe that is used for transfer the fuel of pipeline configuration that is used for transfer the fuel between driving engine and the Fuel Tank, perhaps be used for pitch tube is assemblied in the structure of motorcar body.This pitch tube is arranged between driving engine and the Fuel Tank and is used for transfer the fuel, and for example is equipped with a connector.On the outer surface of this pitch tube, for this pitch tube a mark is set along the whole length of the cardinal principle of pitch tube or along whole length.Under the linearly extended state of pitch tube, this mark extends along the vertical linear of pitch tube.Owing to have mark on this pitch tube, therefore when in the process of pitch tube in being assemblied in body of motor vehicle bending taking place, can produce bending in the mark that linearity is provided with and in the pitch tube self, the operator can be by producing bending in pitch tube mark easily and visually confirmed.
Therefore the operator can be provided with and assemble pitch tube by the linearity setting that keeps the mark on the pitch tube, and can not produce bending in pitch tube.
When being specially adapted to overall diameter when mostly being the minor diameter pitch tube of 6mm most, and be applicable to and want green phase that this structure has produced very big effect for cooperating the pipeline rotary connector and cooperating plumbing connection and comprise and be used to provide with respect to the leak free of cooperation pipeline for example the pitch tube of the annular seat component encircled of O shape the time.
In particular, adaptor union be installed in pitch tube be used to make pitch tube and cooperate pipeline bonded assembly end on and this adaptor union be provided with detection means be used to confirm with the complete bonded assembly situation that cooperates pipeline under, for example, mark is set on pitch tube, with corresponding to, accord with or accord with substantially the Assembly ﹠Disassembly direction of detection means, perhaps detection means is with respect to the Assembly ﹠Disassembly side of circumferential position.Perhaps, mark can be set on pitch tube, thus corresponding to, accord with or accord with substantially the Assembly ﹠Disassembly direction of detection means or detection means radially opposite side with respect to the Assembly ﹠Disassembly side of circumferential position.
Perhaps, adaptor union be installed in pitch tube be used to make pitch tube and cooperate on the pipeline bonded assembly end and this adaptor union is provided with under the situation that is used for and cooperates the retainer that pipeline engages, retainer has the function part of radially not protruding from adaptor union, this function part be configured to by operate remove cooperate pipeline and adaptor union or with the engaging of retainer, for example mark is arranged on the pitch tube, thus corresponding to, accord with or accord with substantially function part or function part direction of operating with respect to circumferential position.
Now, with reference to these accompanying drawings preferred embodiment is described, wherein the present invention is applicable to be arranged in compact car and is used for the mounting structure of connector mounted pitch tube of transfer the fuel between driving engine and the Fuel Tank.
Here, compact car specifically refers to two-wheeled vehicle, three-wheeled motor vehicle and all-terrain vehicle (ATV) etc. or mid-get car.
Brief description of drawings
Fig. 1 (A) is a scheme drawing, demonstrates the pipeline configuration that is used for transfer the fuel according to an embodiment of an embodiment.
Fig. 1 (B) is the enlarged drawing of the part B of Fig. 1 (A).
Fig. 1 (C) is another enlarged drawing of the part B of Fig. 1 (A).
Fig. 2 (A) is the exploded cutaway view of the adaptor union of an embodiment.
Fig. 2 (B) is a cutaway view, demonstrate pitch tube by adaptor union with cooperate pipeline bonded assembly state.
Fig. 3 is a partial, exploded perspective view, shows that adaptor union is together with cooperating pipeline.
Fig. 4 (A) is a front elevation, the front elevation of the connector mounted pitch tube that demonstrates an embodiment before in being assemblied in self-propelled vehicle.
The cutaway view of Fig. 4 (B) for cutting open along the B-B line of Fig. 4 (A).
Fig. 4 (C) is the enlarged drawing of the portion C of Fig. 4 (A).
Fig. 4 (D) is a scheme drawing, demonstrates the embodiment that mark is set for pitch tube.
Fig. 5 is a scheme drawing, demonstrates the geometrical clamp according to an embodiment of the invention before fastening.
Fig. 6 (A) is a transparent view, demonstrates pitch tube by the fastening state of geometrical clamp.
Fig. 6 (B) is a cutaway view, and it is fastening by geometrical clamp to demonstrate pitch tube.
Fig. 7 (A) is a front elevation, demonstrates the another kind of pattern of geometrical clamp.
Fig. 7 (B) is a cutaway view, demonstrates the another kind of pattern of geometrical clamp.
Fig. 7 (C) is the cutaway view of the buffer component that uses in the another kind of pattern of geometrical clamp.
Fig. 7 (D) is another cutaway view of buffer component.
Fig. 8 (A) is a transparent view, demonstrates pitch tube by the fastening state of the geometrical clamp of another kind of pattern.
Fig. 8 (B) is a cutaway view, demonstrates pitch tube by the fastening state of the geometrical clamp of another kind of pattern.
Fig. 8 (C) is a scheme drawing, demonstrates the pipeline configuration of the geometrical clamp that uses another kind of pattern.
Fig. 8 (D) is an enlarged drawing, demonstrates the part D of Fig. 8 (C).
Fig. 9 is a scheme drawing, demonstrates another pattern of geometrical clamp.
Figure 10 (A) is a scheme drawing, demonstrates the first step of manufacturing process of the pitch tube of an embodiment.
Figure 10 (B) is a scheme drawing, demonstrates second step of manufacturing process of the pitch tube of an embodiment.
Figure 10 (C) is a scheme drawing, demonstrates the third step of manufacturing process of the pitch tube of an embodiment.
Figure 10 (D) is a scheme drawing, demonstrates the 4th step of manufacturing process of the pitch tube of an embodiment.
Figure 10 (E) is a scheme drawing, demonstrates the 5th step of manufacturing process of the pitch tube of an embodiment.
Figure 11 (A) is a scheme drawing, demonstrates the first step of the manufacture method of comparing with manufacturing process shown in Figure 10.
Figure 11 (B) is a scheme drawing, demonstrates second step of the manufacture method of comparing with manufacturing process shown in Figure 10.
Figure 11 (C) is a scheme drawing, demonstrates the third step of the manufacture method of comparing with manufacturing process shown in Figure 10.
Figure 12 (A) is the example of conventional pipelines structure.
Figure 12 (B) is the view of the adaptor union shown in Figure 12 (A), has wherein used single O shape ring.
Figure 13 (A) is the relevant portion of adaptor union of Figure 12 and the view of pitch tube, has shown that adaptor union is pressed into the state before being assemblied in the pitch tube.
Figure 13 (B) is the relevant portion of adaptor union of Figure 12 and the view of pitch tube, has shown that adaptor union is pressed into the state that is assemblied in the pitch tube.
Figure 14 (A) is the cutaway view of another adaptor union.
Figure 14 (B) is a scheme drawing, demonstrates the retainer of another adaptor union.
Figure 15 is a cutaway view, demonstrates another adaptor union and is connected to the state that cooperates pipeline.
Figure 16 is a scheme drawing, demonstrates the improvement embodiment of another adaptor union.
Figure 17 is the decomposition diagram of another adaptor union.
Figure 18 (A) is the cutaway view of another adaptor union.
Figure 18 (B) is a scheme drawing, demonstrates another adaptor union and cooperates plumbing connection.
Figure 19 is the scheme drawing of a reverse-flow type fuel system.
The specific embodiment
With reference to figure 2 and 3, Reference numeral 10 for constituent elements for example driving engine or fixedly secure that Fuel Tank on motorcar body forms as one cooperate pipeline 10.This cooperation pipeline 10 is formed with on its external peripheral surface and round the bump bonding (pipe side engagement part) 12 of its annular protrusion.
Fig. 4 has shown even the state before the connector mounted pitch tube between driving engine and the Fuel Tank is being assemblied in body of motor vehicle.In these figure, Reference numeral 14 expression pitch tubes, Reference numeral 16 expression adaptor unions (quick connecting connector).These adaptor unions 16,16 are installed on two ends of pitch tube 14.But when pitch tube 14 for example cooperated pipeline 10 direct connections by being press-fitted etc. on the end at pitch tube with mating component, 16 of adaptor unions were mounted on another end of pitch tube 14.
Here, pitch tube 14 in being assemblied in motorcar body or on before have the straight tube-like shape.That is to say that pitch tube 14 forms or be molded as the straight tube-like shape.
Simultaneously, the conduit assembly 14 that is equipped with adaptor union 16 is applicable to that wherein residual fuel can not be back to the no reverse-flow type fuel system of Fuel Tank, and is applicable to and wherein remains the another kind of fuel system (reverse-flow type fuel system) that gasoline is back to Fuel Tank.
Shown in Fig. 4 (B), Reference numeral 14A is the pitch tube main body of pitch tube 14.This pitch tube main body 14A has a kind of multiple-structure, and it comprises internal layer 14A-A that is made by ETFE and the outer 14A-2 that is made by PA12.
In addition, holding sheet or will be held on the outer surface that layer 14B be laminated to pitch tube main body 14A, thus especially be covered with pitch tube main body 14A along carrying out diastrophic its whole effective length along the whole length except two end of pitch tube 14A.This effective length is by L ' expression, and it is shorter than the whole length L of pitch tube 14.This effective length L ' for example is the length of pitch tube 14 except two ends of the adapter sleeve part 28 (back is described) that wherein is equipped with adaptor union 16.Here, holding sheet 14B forms and is longer than effective length L ' slightly.That is to say, in this embodiment, holding sheet 14B also is laminated to a part or the inside in zone of pitch tube main body 14A that pressure fitted wherein has the adapter sleeve part 28 of adaptor union 16, promptly is engaged on zone that part of or inner of the pitch tube main body 14A on the adapter sleeve part 28.
Specifically, pitch tube main body 14A is except being covered by holding sheet 14B fully apart from the location of δ extending one along axial inward direction from two ends of pitch tube main body 14A.In this embodiment, this equals 2 to 8mm apart from δ.
Here, holding sheet 14B is provided for by with described geometrical clamp clamping below.
In this embodiment, pitch tube main body 14A is a narrow-bore tube, and its internal diameter (id) is 2.5mm, and its external diameter (od) is 4mm.That is to say that internal layer 14A-1 has the internal diameter (id) of 2.5mm, outer 14A-2 has the external diameter (od) of 4mm.
Here, internal layer 14A-1 has the wall thickness of 0.2mm, and outer 14A-2 has the wall thickness of 0.55mm, and holding sheet 14B has the wall thickness of 1.0mm.That is to say that the wall thickness of internal layer 14A-1 and outer 14A-2 (t) is that the wall thickness (t) of pitch tube main body 14A is 0.75mm.
But multiple-structure, material and size for example wall thickness and length all are that mode with embodiment provides.Needless to say, these can carry out various variations.
As shown in Figure 2, adaptor union 16 has and whole encircles 22,22 (also referring to Fig. 3) for the connector body of tubulose (whole being formed from a resin) 18, one retainer 20, a lining 24 with as the O shape of containment member here.For example, O shape ring 22 is as containment member, and but lining 24 is not as containment member as the retainer of opposing with respect to the axis teeter.
In this embodiment, adaptor union 16 is made (except the containment member) by PA.But, can carry out suitable selection according to the angle of impermeability, gasoline resistance (can in gasoline, not expand) and the cost of resistance to effect of heat, fuel as the material of adaptor union 16.
Specifically, excellence aspect resistance to effect of heat such as polyamide type (PA11, PA12, PA6, PA66, polyphtalamide (PPA) etc.) and polyphenylene sulfide (PPS), polyester type (poly-terephthalic acids butanediol ester (PBT), Polyethylene Terephthalates (PET), PEN (PEN) etc.) excellence aspect fuel impermeability and gasoline resistance.
And the available lower cost of polyacetal (POM) obtains, and guarantees resistance to effect of heat, fuel impermeability and gasoline resistance.
And, can in above-mentioned material, add glass fibre, to strengthen intensity, perhaps can in above-mentioned material, add nano composite material for example clay to improve the fuel impermeability.
These materials also are applicable to the material as pitch tube main body 14A.For the material of pitch tube 14 or pitch tube main body 14A, the alloy that can adopt a kind of material in elastic body and these resins to form.Except resin itself intrinsic resistance to effect of heat and fuel impermeability, this alloy provides flexible can also for pitch tube 14 or pitch tube main body 14A.
Above-mentioned connector body 18 has receptacle-shaped retainer retaining part 26 on its near-end, on its far-end, have be press-fitted or be pressed into mating part (blank area) 28 as with the connecting bridge of pitch tube 14, as shown in Figure 2.
And retainer 20 is whole members that are substantially annular (cross section is a C shape) herein and are formed from a resin.Retainer 20 is designed to can be along radial elastic and plastic deformation.
When cooperating pipeline 10 to be inserted in the retainer 20 along axial direction, inner periphery cam face 38 contiguous engagement projection 12 and guide engagement projection 12 are used to move axially.Along with bump bonding 12 moves, inner periphery cam face 38 do as a whole under camming action or guiding function along diametric(al) elastic expansion retainer 20, allow bump bonding 12 to pass through thus.
Divide a position of 34 as long as bump bonding 12 arrives engagement concave portions then, retainer 20 is made as a whole its original shape that just is back to, and bump bonding 12 divides in 34 along axially being assembled in engagement concave portions simultaneously, and they are each other in fixed relationship.
On the other hand, when retainer 20 is in the retainer retaining part 26 that axially is inserted into connector body 18, excircle cam face 40 is in abutting connection with stopping part 32,32, thus will be as a single-piece retainer 20 along the diametric(al) elastic shrinkage, and at last latch recess 36,36 is latched in respectively on the stopping part 32,32.
Simultaneously, retainer 20 is included in the operation joint (tab) 42,42 on its end portion (proximal part or axial outer end).Retainer 20 also can be because of applying radially inner application force to operation joint 42 and being shunk along diametric(al).
In adaptor union 16, retainer 20 at first is maintained in the retainer retaining part 26 of connector body 18.Then in this state, cooperate pipeline 10 along axially being inserted in the retainer 20.
During that, retainer 20 since cooperate pipeline 10 bump bonding 12 and along the elastic expansion of diameter expansion direction.Divide 34,34 in case bump bonding 12 arrives engagement concave portions, retainer 20 just shrinks along diametric(al), and bump bonding 12 is bonded on engagement concave portions and divides in 34.
Perhaps, retainer 20 at first is connected to and cooperates pipeline 10.Then in this state, cooperate pipeline 10 with and on retainer 20 can be inserted in the connector body 18.
At this moment, retainer 20 is in case along the diametric(al) contraction, and then, as long as latch recess 36 arrives a position of stopping parts 32, retainer 20 just becomes big along diametric(al), and latch recess 36 is latched on the stopping part 32.
Be pressed into mating part 28 and be and to cooperate or press fit over part in the pitch tube 14 along axially being pressed into.Be pressed into a plurality of axially spaced position (herein, two positions) of mating part 28 on its external peripheral surface and locate to be formed with circumferential rib 46.Circumferential rib 46 has the interface of jagged edges, and is provided with acutangulate peak.
Be pressed in the end that is assemblied in pitch tube 14 by being pressed into assembled portion 28, connector body 18 is stopped with respect to pitch tube 14.Simultaneously, connector body 18 can for example weld and cross molding and maintain static with respect to pitch tube 14 by being pressed into other means beyond cooperating.
Fig. 1 (A) and 1 (B) have shown that the above-mentioned pitch tube 14 that is equipped with adaptor union 16 is assembled in the state in the motorcar body.
As shown in the figure, herein, locate alongst pitch tube 14 to be carried out bending based on its flexibility at a plurality of points (having shown three some 50-1,50-2,50-3 herein).The two side portions of each keeps by geometrical clamp and is fixed on the motorcar body among a plurality of point of inflection 50-1,50-2, the 50-3.
Like this, the pitch tube 14 whole predetermined curve or the sweeps of being provided with of adaptor union 16,16 are equipped with.And pitch tube 14 is assemblied in the motorcar body with this state, is connected with cooperation pipeline 10 by adaptor union 16,16 simultaneously.
That is to say that the pitch tube 14 that forms the straight tube-like shape is arranged and is assemblied in the motorcar body, is limited and is remained in the desired curved shape by geometrical clamp simultaneously.
That is to say that the pitch tube 14 that forms the straight tube-like shape becomes desired curved shape to arrange and be assemblied in the motorcar body under the limitation and restriction power effect that is applied by geometrical clamp.
Fig. 5 and 6 demonstrates a preferred embodiment of geometrical clamp.
Here, Fig. 5 demonstrates the geometrical clamp 48 before being assemblied on the motorcar body, and Fig. 6 demonstrates the geometrical clamp 48 after assembling thereon.Simultaneously, Fig. 1 (A) demonstrates the pipeline configuration that has wherein used this geometrical clamp 48.
In Fig. 5, geometrical clamp 48 is formed from a resin, and is flexible or elastomeric.Geometrical clamp 48 has a retaining part 54 and a mounting portion 56.Retaining part 54 integral body form the general toroidal shape, and are provided with an opening 52 in its predetermined circumferential position.Retaining part 54 comprises a pair of outwardly directed guiding duckbilled part 53,53 on two ends of opening 52.Thus, 54 one-tenth forms that are substantially C shape of retaining part.Mounting portion 56 has an insertion portion 59 and a pair of being used for from the inboard of panel and the clamping part 61A of outside clamping panel, 61B of the retaining hole 57 that is used for self-propelled vehicle one side panel.Clamping part 61A is according to along two horizontal directions (two horizontal outward directions, along the left and right directions in Fig. 5) mode of extending is integrally formed on the outer end portion (mounting portion 56 or insertion portion 59 are near the ends of retaining parts 54) of mounting portion 56 or insertion portion 59, and clamping part 61B is integrally formed on the inner end portion (end relative with retaining part 54 of mounting portion 56 or insertion portion 59) of mounting portion 56 or insertion portion 59 according to the mode of extending along two horizontal directions.Clamping part 61B comprises integratedly and laterally stretches out and extend and towards retaining part 54 bevelled fold back portion 61B-2 towards retaining part 54 61B-1 of bevelled foot and from the transversely inside direction of the lateral outer ends of the 61B-1 of foot on two transverse sides.Distance between the lateral outer ends of clamping part 61A is obviously greater than the width of retaining hole 57, and is a bit larger tham the width of retaining hole 57 in the distance between the lateral outer ends of clamping part 61B (distance between the lateral outer ends of the 61B-1 of foot).
Shown in Fig. 6 (A), in geometrical clamp 48, pitch tube 14 slides in retaining part 54 by opening 52 along square with the axis direction, has retaining part 54 to keep pitch tube 14 thus.In retaining hole 57 geometrical clamp 48 is firmly-fixed in the motorcar body then, pitch tube 14 becomes fixed relationship with motorcar body thus.Geometrical clamp 48 for example fixedly secures thereon in such a way.Insertion portion 59 so is inserted in the retaining hole 57 of panel, thereby clamping part 61B pressure fitted is in retaining hole 57, for example, laterally inwardly narrow down or modification simultaneously, and pass completely through retaining hole 57 fully or substantially to the back side of panel up to clamping part 61B.In this installing condition, the lateral outer ends of clamping part 61A part engages with panel surface, and the fold back portion 61B-2 of clamping part 61B engages with the edge or the inner edge of retaining hole 57 simultaneously.Therefore, for example, geometrical clamp 48 stably is installed in the panel.On the other hand, can carry out reposefully geometrical clamp 48 is inserted in the retaining hole 57, and geometrical clamp 48 can be pulled out from retaining hole 57.
Fig. 7 and 8 demonstrates another preferred embodiment of geometrical clamp or geometrical clamp device.Here, Fig. 7 demonstrates geometrical clamp or the geometrical clamp device that is used for being assemblied in motorcar body, and Fig. 8 demonstrates geometrical clamp or geometrical clamp device after being assemblied in wherein.
In Fig. 7, another geometrical clamp 62 is made of metal, and has whole retaining part 63 with the form of annular shape substantially and a pair of with installation or fixed part 64 from the form of two extended plates of circumferential ends of retaining part 63.
Each mounting portion 64 comprises a mounting hole 66.Mounting portion 64 is fastening or fixedly secure in motorcar body by mounting hole 66.Here, in the state before as shown in Figure 7 clamped, another geometrical clamp 62 comprises allows pitch tube 14 be assemblied in opening 65 in the retaining part 63 along passing it with the direction of axis normal.
That is to say the form of these buffer component 67 whole one-tenth C shapes.
In this geometrical clamp device (geometrical clamp 62 and buffering member 67), as shown in Figure 8, at first the cylindrical part 68 with buffer component 67 is fixed in the retaining part 63.In this state, pitch tube 14 is inserted in the buffer component 67 by opening 65 and buffering member opening 70, and at mounting hole 66 places that another geometrical clamp 62 is fastening or fixedly secure in motorcar body then.At this moment, another geometrical clamp 62 fixedly secures in motorcar body simultaneously opening 65 with pitch tube 14 and cuts out (with reference to Fig. 8, Fig. 8 (C) and Fig. 8 (D) demonstrate pitch tube 14 and be fastened on state on the motorcar body by geometrical clamp 62).That is to say that another geometrical clamp 62 so fixedly secures in motorcar body, thus a pair of mounting portion 64 is close to each other or contact to link together.
Optionally, can at first pitch tube 14 be fixed in the buffer component 67, and can be along the pitch tube 14 that has buffer component 67 on it being inserted and remains in the retaining part 63 of another geometrical clamp 62 by opening 65 with the direction of axis normal in this state.
Though used buffer component 67 here, pitch tube 14 can directly be fixed in another geometrical clamp 62, pitch tube 14 can be fixedly secured in motorcar body thus.By the way, in Fig. 8 (C), adopt the pitch tube 14 that mark 88 is not set.But similar with situation in Fig. 1 (A), the place, front portion of the pitch tube 14 that this pitch tube 14 can be in the figure is provided with mark 88.
Fig. 9 demonstrates another preferred embodiment of geometrical clamp.
This another geometrical clamp 71 is with difference at another geometrical clamp 62 shown in Fig. 7 and 8, and this another geometrical clamp 71 has the part of rise (sweep) 72 between the opening of retaining part 63 and installation or fixed part 64.The remainder of this another geometrical clamp 71 has the structure substantially the same with another geometrical clamp 62.In this another geometrical clamp 71, between the opening of retaining part 63 and mounting portion 64, be limited with relatively long and crooked opening 73.Thereby when geometrical clamp 71 distortion links together mounting portion 64, two rise part 72 mutually near or contact so that link together, the opening of retaining part 63 and curved openings 73 are closed.Therefore, guaranteed that when being fastened on or fixedly securing geometrical clamp 71 in motorcar body pitch tube 14 has more stable maintenance function.
As mentioned above, according to embodiment of the present invention, owing to needn't in fabrication portion, pitch tube 14 be configured as predetermined bending or bending shape, so can reduce the cost relevant with this pitch tube 14.
And pitch tube 14 becomes the form of straight tube-like shape in being assemblied in motorcar body always.Ability was according to required bending or bending shape bending or bending when this pitch tube just was assemblied in the motorcar body in installation step.Therefore, needn't prepare and self-propelled vehicle type or the cooresponding various types of pitch tubes of layout of beam line, and the pitch tube 14 of same type can be used for various types of self-propelled vehiclees or various layout of beam line.
And according to this embodiment, (two side areas of 50-3) each keeps by geometrical clamp 48,62 (62 and 67) or 71 and fixedly secures in motorcar body the point of inflection 50 of pitch tube 14 for 50-1,50-2.Therefore, when motorcar body passes to pitch tube 14, the vibration of pitch tube 14 or vibration limiting can be got lessly in vibration, and the restriction of geometrical clamp 48,62 (62 and 67) or clamping action can not allow the rotational motion of pitch tube 14 self.That is to say that adaptor union 16 can be with respect to cooperating pipeline 10 to rotate.This has solved O shape ring 22 in adaptor union 16 simultaneously because the relative rotation motion of driving system of pitch tube 14 is worn and torn and damaged the problem that reduces sealing property thus, and can remain on the good seal performance between adaptor union 16 and the cooperation pipeline 10 for a long time.
In this embodiment, pitch tube 14 adopts narrow-bore tube, and pitch tube 14 is very flexible.Therefore, when pitch tube 14 is crooked in installation step, its be difficult to break (kinking).This pitch tube 14 can be easy to bending and be deformed into desired curved shape and be assemblied in the motorcar body.
In the geometrical clamp 48,62,71 of this embodiment, can open or widen C shape retaining part 54,63 by elasticity pitch tube 14 is assemblied in the C shape retaining part 54,63.Therefore, operating personal can be easy to pitch tube 14 is fastened on pitch tube 14 on the motorcar body by geometrical clamp 48,62,71 in crooked in the assembling place.
Had opening 65,73 according to geometrical clamp 62 of the present invention and 71 before clamped, they are fastening or close when fixedly securing on motorcar body.This structure can reduce or eliminate the gap with respect to pitch tube 14, advantageously prevents pitch tube 14 vibrations thus.Therefore, except above-mentioned geometrical clamp 48,62,71, the preferred geometrical clamp that still also can adopt various structures in the present invention of these geometrical clamps.
As mentioned above, the pitch tube 14 before Fig. 4 demonstrates in being assemblied in motorcar body.As can be seen from the figure, pitch tube 14 had the straight tube-like shape before assembling.That is to say that this pitch tube 14 is by formation such as extrusion moldings or be molded as the straight tube-like shape.Pitch tube 14 is equipped with adaptor union 16 before in being assemblied in motorcar body on two ends of pitch tube 14, and the pitch tube 14 that has adaptor union 16 on it is assemblied in the motorcar body.
The end of pitch tube 14 became expanded shape (outwards opening) to expand before being equipped with adaptor union 16.
Outwards the opening of the end of pitch tube 14 makes the adapter sleeve part 28 of adaptor union 16 to be pressed into easily to be engaged in pitch tube 14 especially among the pitch tube main body 14A.
At this moment, as as shown in Figure 11 of comparing embodiment, if holding sheet 14B is laminated into the terminal (with reference to Figure 11 (A)) of covering resin pipe 14A up to pitch tube main body 14A, then shown in Figure 11 (B), to expand that anchor clamps 74 are inserted in the pitch tube main body 14A so that during the expansion of its end, open the part 76 of opening of part 76 or pitch tube 14A and shrinking under effects such as axial direction applied pressure, the end of holding sheet 14B overlaps equally on the end face that opens part shown in the incomplete enlarged drawing of Figure 11 (C).That is to say, define a lap 78.As the case may be, the front end of this lap 78 extends or stretches out the inside face that surpasses the terminal of opening part 76 towards axis.
Therefore, in this state as shown in Figure 11 (C), be pressed into when being engaged among the pitch tube main body 14A in the adapter sleeve part 28 of adaptor union 16, probably this lap 78 can scratches be assemblied in the O shape ring 80 on the outer surface of adapter sleeve part 28, perhaps this lap 78 is fastened or is blocked by adapter sleeve part 28, and the sealing property of O shape ring 80 reduces.
According to this embodiment, before adaptor union 16 is pressed into cooperation and is assemblied in the pitch tube 14, thereby at first holding sheet 14B is laminated to pitch tube main body 14A and upward is covered with the whole length (first step) of this pitch tube main body 14A, shown in Figure 10 (A) from one end thereof to another end.Then, with the same shown in (C), the terminal part of holding sheet 14B is cut and removes predetermined length as Figure 10 (B).
Specifically; from Figure 10 (B) as can be seen, have assemble end 82 cylindrical anti-cut device 74 slide in pitch tube main body 14A and the holding sheet 14 between apart from the position of the certain axial length of axial end portion of pitch tube 14 to protect this pitch tube main body 14A (second step).Then; by anti-cut device 84 protection resin tube body 14A in; cutting blade 86 is applied on the outer surface of holding sheet 14B; and pitch tube 14 and cutting blade 86 are relatively rotated, thereby the annular end of holding sheet 14B or part are cut and remove (third step) from pitch tube main body 14A by cutting blade 86.
Can produce relative rotation by pitch tube 14 or cutting blade 86 are rotated.But operating personal makes long pitch tube 14 rotate trouble.Therefore, cutting blade 86 is rotated, the pitch tube 14 of random length is cut because can be easily.
Like this, the end of pitch tube main body 14A is the same shown in Figure 10 (C) exposes along its predetermined length δ.
Afterwards, shown in Figure 10 (D), the end of pitch tube main body 14A is opened and outward radial expansion (the 4th step) by expansion anchor clamps 74.
In this state, shown in Figure 10 (E), the adapter sleeve part 28 of adaptor union 16 is pressed into and is engaged among the pitch tube main body 14A, and adaptor union 16 is installed on the end of pitch tube 14 (the 5th step).
During that, because the end of holding sheet 14B is not overlapping with the end face that opens part 76, promptly the lap as Figure 11 (C) shown in 78 does not form, so O shape encircles 80 in that adapter sleeve part 28 is pressed into can be by scratch when being engaged among the pitch tube main body 14A.And, any lap 78 can not occur and be fastened or block by O shape ring 80 and wait and the problem of the sealing property reduction of O shape ring 80.
According to this embodiment of the present invention, when pitch tube 14 was clamped by geometrical clamp 48,62,71, the holding sheet 14B that is laminated on the outer surface of pitch tube main body 14A had prevented that effectively pitch tube main body 14A is by scratch.Therefore, can come easily pitch tube 14 to be assemblied in the motorcar body by clamping pitch tube 14 with geometrical clamp 48,62,71.
And in this embodiment, holding sheet 14B is located on the pitch tube main body 14A along the whole basically length of pitch tube main body 14A.Therefore, can prevent effectively pitch tube main body 14A pitch tube 14 be fixed in its any position folder 48,62,71 when clamping by scratch.
This means that according to this embodiment, pitch tube can be clamped by geometrical clamp 48,62,71 in its any position along axial direction, and can not damage pitch tube main body 14A.Therefore, pitch tube 14 can be assemblied in the motorcar body when making pitch tube 14 be configured as various curved shapes.
In this embodiment, the predetermined length δ that begins from arbitrary end of holding sheet 14B or pitch tube main body 14 has been removed in the end of holding sheet 14B, thereby arbitrary end of pitch tube main body 14A is exposed.Therefore, the lap 78 of holding sheet 14B does not form when open a terminal that makes pitch tube main body 14A or described end.This has solved adapter sleeve part 28 at adaptor union 16 and has been pressed into O shape on the outer surface that is assemblied in adapter sleeve part 28 when being engaged among the pitch tube main body 14A and encircles 80 impaired or laps 78 and encircled 80 etc. by O shape and fasten or block and the problem that reduces of sealing property thus.
Method according to the pitch tube 14 that is used to produce this embodiment; at first; holding sheet 14B is laminated into the whole length covering resin tube body 14A that arrives another end along one end thereof; make then and cylindrically anti-cut device 84 and begin to slide between pitch tube main body 14A and holding sheet 14B from its arbitrary longitudinal end, the end of holding sheet 14B is circularizing cutting and is being removed by the anti-blade 86 that is cut when cutting device 84 protection resin tube body 14A.Like this, can easily two annular ends of the holding sheet 14B of predetermined length be removed from the outer surface of pitch tube 14A, and can not damage pitch tube main body 14A.
Simultaneously; in this embodiment, in the state of pitch tube 14 equally straight extension shown in Fig. 4 (C), especially on the outer surface of holding sheet (protective cover) 14B, be provided with mark 88 on the outer surface of pitch tube 14 along the longitudinal direction of pitch tube 14 with limiting.
In this embodiment, by arranging that letter, numeral and horizontal line constitute this mark 88.Needless to say, this mark 88 can constitute by arranging other letter, numeral and other symbol linearly.This mark 88 for example is located on the outer surface of pitch tube 14, thereby its width is 1/20 to 1/5 (for example for the outer perimeter of pitch tube 14 1/14 to 1/10) of the outer perimeter of pitch tube 14.For example, when pitch tube 14 its external diameters were 6mm, mark 88 can have the height (for example being approximately 1.3mm to 1.9mm) that is approximately 0.9mm to 3.8mm.Here, for example mark 88 is designed to have the height of 1.5mm.These mark 88 its width needn't be along 1/20 to 1/5 (for example for the girth of pitch tube 14 1/14 to 1/10) of its whole length girth that is pitch tube 14, but this mark 88 is just enough as long as have a this width in its main portion or on its main portion of its longitudinal direction.In this structure, mark 88 has suitable width, can improve anti-kinking effect thus.
Wholely in the time of in the motorcar body that is being assemblied in as shown in Figure 1 with pitch tube 14 be provided with predetermined curved shape in the straight tube-like shape form shown in Fig. 4 (A).
Between erecting stage, pitch tube 14 is round the axis bending of pitch tube 14 or be deformed into a curved shape and can not produce any kinking in mark 88, and fastening or fixedly secure in motorcar body by geometrical clamp 48,62,71.
In aforesaid embodiment, pitch tube 14 be assemblied in the motorcar body during during kinking, in the mark 88 of linear arrangement and in pitch tube 14 self, produce kinking.Therefore, operating personal can be easy to visually confirm to produce kinking in pitch tube 14 by mark 88.
Therefore, according to this embodiment, pitch tube 14 should be arranged and be assemblied in the motorcar body according to a kind of like this mode of linear arrangement that keeps mark 88.Like this, thus personnel can not produce in pitch tube 14 and arrange under the situation of kinking and assembling pitch tube 14.
This means, can prevent from the kinking part of pitch tube 14, to produce heavily stressed, and because this stress is accelerated the degeneration of this pitch tube 14.In addition, can also prevent containment member that kinking owing to pitch tube 14 causes adaptor union 16 for example O shape encircle 22 local contact matching pipelines 10 and reduce sealing property thus.
Simultaneously, for example when having adopted adaptor union 300 (retainer 302 integral body are combined in the retainer retaining part 304) in embodiments of the invention, mark 88 is preferably according to being located on the pitch tube 14 with the cooresponding mode of or another pressures partially 324 direction of operating of other pressures partially 324 (or) or according to modes consistent or consistent substantially with respect to circumferential position and or another pressures partially 324.In this structure, operating personal be difficult to visually to find function part (pressures partially 324) for example function part be contained in (referring to Figure 16) in the connector body 306 and adaptor union 300 and be arranged under the situation in the zone of various piece and parts close arrangement wherein, operating personal can utilize according to the clue that is arranged in the mark 88 on the pitch tube 14 with the cooresponding mode of function part and find function part.
When adopting adaptor union 16, shown in Fig. 4 (D), detection means 90 can be installed on the retainer retaining part 26 so that the fully connection of checking between adaptor union 16 and cooperation pipeline 10.Detection means 90 constitutes in such a way.Detection means 90 so is installed on the retainer retaining part 26, thereby the retaining pawl 94 of elastic arm 92 enters into the openning 30 of retainer retaining part 26 and engages (in installing condition, retaining pawl 94 enters in the joint recessed portion or engagement slot part 34 of retainer 20) simultaneously with the circumference edge portion 96 of openning 30.Cooperate pipeline 10 to be inserted in retainer 20 in and with connector body during 18 accurate connections, bump bonding 12 radially outward pushes retaining pawl 94, and has removed engaging of retaining pawl 94 and openning 30.And, can by along by the direction shown in the arrow (along with the vertical direction of planar section 98 between the openning 30 of retainer retaining part 26) draw from adaptor union 16 detection means 90 removed.Therefore, can verify in the connection fully that cooperates between pipeline 10 and the adaptor union 16 by removing detection means 90.In this case, mark 88 can be according to being arranged on the pitch tube 14 with dismounting (install and the remove) direction of detection means 90 or the dismounting with respect to circumferential position (install and remove) the cooresponding mode of side (in the situation shown in Fig. 4 (D)) of detection means 90.That is to say that mark 88 can be according to being located on the pitch tube 14 in the mode between the openning 30 with respect to circumferential position.Perhaps mark 88 can be according to being located on the pitch tube 14 with respect to mode consistent or unanimous on the whole between circumferential position and openning 30 or the planar section 98 and at the place, side that detector 90 is installed.In addition, mark 88 can according to with the dismounting of detector 90 (install and remove) direction radially opposite side or the radial symmetry side is corresponding or with respect to dismounting (installation and the dismounting) side of circumferential position and detection means 80 (with become 180 ° of relative positions in the position shown in this Fig. 4 (D)) cooresponding mode is located on the pitch tube 14.In this structure, operating personal can so be arranged pitch tube 14, thereby detection means 90 is arranged in and makes that he can be by certification mark 88 from position that adaptor union 16 is removed detector 90.Perhaps, for example, when in this embodiment of the present invention, having adopted adaptor union 400 (when cooperating pipeline 202 to be inserted in the adaptor union 400 fully, retainer 402 can be urged with respect to retainer retaining part 404) time, according to the dismounting direction of detection means 406 or remove side and on pitch tube 14, be provided with mark 88 equally.For example, with reference to the Figure 18 (B) for the purpose of convenience, detection means 406 is along being removed by the direction shown in the arrow.This mark 88 can be according to being located on the pitch tube 440 with the cooresponding mode of this dismountings direction (dismounting side or installation and dismounting side) with respect to circumferential position (with reference to by the circumferential position shown in the Reference numeral 442).Simultaneously, with cooresponding position with respect to circumferential position, the radial symmetry position of the dismounting direction of detection means 406 (removing side or installation and dismounting side) for becoming 180 ° of relative circumferential positions (lower position in the figure) with circumferential position by Reference numeral 442 expressions.
Though preferred embodiment is illustrated above, these are the present invention
Some of embodiment.
For example, mark 88 can be taked the various forms except top.Perhaps, as the case may be, can apply the present invention to have pitch tube greater than the external diameter of 6mm.In addition, have two ends that can go for being installed in pitch tube 14 along the adaptor union of the retainer of radial direction elastic deformation each or one of them on.This retainer can separate with connector body or be integrally formed.In being used in according to the adaptor union in embodiment of the present invention, in the time will cooperating pipeline 10 to be inserted in the connector body, retainer is subjected to cooperating the pushing of the bump bonding 12 of pipeline 10, and once (for example along the radial direction distortion, be out of shape according to the mode that expands along radial direction), elasticity is got back to its original-shape to engage with the bump bonding 12 that cooperates pipeline 10 then.Therefore, connector body firmly is assembled together with cooperating pipeline 10 in the axial direction.When adopting adaptor union 300 or adaptor union 400, connecting bridge 312 or connecting bridge 414 suitably are constructed to and are assemblied in (for example, as being pressed into mating part) in the pitch tube 14.
As described, the present invention can constitute according to various structures and pattern and implement within the scope of the invention.
Claims (19)
1. pipeline configuration that is used for transfer the fuel that is arranged between driving engine and the Fuel Tank, it comprises:
Pitch tube (14), it forms the straight tube-like shape, be used for transfer the fuel, this pitch tube (14) is along one or more positions bending of the longitudinal direction of pitch tube (14) and crooked to form one or more sweep (50-1,50-2,50-3), this pitch tube has predetermined curved shape thus; And
Geometrical clamp (48,62,71), (50-1,50-2 50-3), and are assemblied in pitch tube (14) in the motorcar body thus to keep one or more sweeps to be used for that pitch tube (14) is fixed on motorcar body.
2. the pipeline configuration that is used for transfer the fuel as claimed in claim 1 also comprises:
Adaptor union (16,300,400), it is installed on the end of pitch tube (14), is used for making pitch tube (14) to be connected with cooperating pipeline (10); And
Described pitch tube (14) is being assemblied in the motorcar body with cooperating pipeline (10) bonded assembly simultaneously by adaptor union (16,300,400).
3. the pipeline configuration that is used for transfer the fuel as claimed in claim 1 or 2, wherein, described geometrical clamp (47,62,71) (zone of each side 50-3) is fixed on the one or more sweep (50-1 that keep pitch tube (14) in the motorcar body for 50-1,50-2 by the one or more sweeps with pitch tube (14), 50-2,50-3).
4. as each described pipeline configuration that is used for transfer the fuel in the claim 1 to 3, wherein, described pitch tube (14) has the little external diameter that can reach 6mm.
5. the pipeline configuration that is used for transfer the fuel as claimed in claim 2, wherein, described cooperation pipeline (10) is integrally formed in the parts that are securely fixed in the motorcar body.
6. the pipeline configuration that is used for transfer the fuel as claimed in claim 4, wherein, described driving engine connects to rise and fall with trailing wheel with trailing wheel.
7. as each described pipeline configuration that is used for transfer the fuel in the claim 1 to 6, wherein, described geometrical clamp (62,71) have be substantially the annular retaining part (63) and opening (65,73), pitch tube (14) is assemblied in the retaining part (63) along passing this opening (65,73) with the direction of an axis normal
Described geometrical clamp (62,71) is configured to work as this geometrical clamp (62,71) and is fixed on when simultaneously pitch tube (14) being remained in the retaining part (63) in the motorcar body, and opening (65,73) is closed.
8. the pipeline configuration that is used for transfer the fuel as claimed in claim 2, wherein said adaptor union (16,300,400) has:
A) be the connector body (18 of columniform form on the whole, 306,408), it comprises and is positioned at this connector body (18,306,408) the retainer retaining part (26,304,404) on the end of axial direction and be positioned at connector body (18,306, being used for and pitch tube (14) bonded assembly connecting bridge (28,312,414) on another end 408);
B) retainer (20,302,402), it remains on retainer retaining part (26,304,404) in or on it, be used for be positioned at the outer surface that cooperates pipeline (10) on the projection or the pipe side bonding part (12) of form of grooves engage, and be positioned at and the insertion end that cooperates pipeline (10) the axial end portion spaced positions place of (44) partly;
C) containment member (22,308,410), it is arranged in another end with respect to retainer retaining part (26,304,404) of connector body (18,306,408),
Wherein, retainer (20,302,402) is inserted in connector body (18 on being securely fixed in axially, 306,408) the cooperation pipeline (10) in, containment member (22,308,410) be inserted in connector body (18, the outer surface contact of the insertion end part (44) of the cooperation pipeline (10) 306,408) is to provide the sealing with respect to its insertion end part (44).
9. the pipeline configuration that is used for transfer the fuel as claimed in claim 8, wherein, described retainer retaining part (26) is the form of socket shape, and described connecting bridge (28) is constructed to and is pressed into the mating part that is pressed into that is engaged in the pitch tube (14).
10. one kind at the pitch tube that is used for transfer the fuel that pipeline configuration adopted that is used for transfer the fuel as claimed in claim 1, and it comprises:
Minor diameter pitch tube main body (14A), its external diameter can reach 6mm; And
Resilient clamp layer (14B), it is laminated on the outer surface of pitch tube main body (14A) with by geometrical clamp (48,62,71) clamp, described resilient clamp layer (14B) has predetermined wall thickness and along the whole effective length covering resin tube body (14A) that carries out diastrophic pitch tube (14).
11. the pitch tube that is used for transfer the fuel as claimed in claim 10, wherein, described holding sheet (14B) is formed with 0.7 to 1.3mm wall thickness.
12. as claim 10 or the 11 described pitch tubes that are used for transfer the fuel, wherein, described pitch tube (14) is connected with cooperating pipeline (10) by adaptor union (16), this adaptor union (16) comprises the tubulose adapter sleeve part (28) as the mating part that is used for being engaged in pitch tube (14), this tubulose adapter sleeve part (28) is provided with for example O shape ring of annular seat component (22) on the outer surface of this tubulose adapter sleeve part (28)
Wherein, this holding sheet (14B) is removed predetermined length to expose an end of this pitch tube main body (14A) by the end from pitch tube main body (14A).
13. the pitch tube that is used for transfer the fuel as claimed in claim 12, wherein, an end of holding sheet (14B) is removed 2 to 8mm length from the described end of pitch tube main body (14A).
14. one kind at the pitch tube that is used for transfer the fuel that pipeline configuration adopted that is used for transfer the fuel as claimed in claim 1, wherein, mark (88) is located on the outer surface of pitch tube (14) along the whole substantially length of pitch tube (14), this mark (88) in the state of the straight extension of pitch tube (14) along the longitudinal direction linear extension of pitch tube (14).
15. the pitch tube that is used for transfer the fuel as claimed in claim 14, wherein, described pitch tube (14) has the little external diameter that can reach 6mm.
16. as claim 14 or the 15 described pitch tubes that are used for transfer the fuel, wherein, pitch tube (14) is connected with cooperating pipeline (10) by adaptor union (16,300,400), adaptor union (16,300,400) be constructed to by annular seat component O shape ring (22,308 for example, 410) sealed with respect to cooperating pipeline (10), and be constructed to and can rotate with respect to cooperation pipeline (10).
17. as claim 14 or the 15 described pitch tubes that are used for transfer the fuel, wherein, adaptor union (16,400) be installed in and be used to make pitch tube (14) and the end that cooperates pipeline (10) bonded assembly pitch tube (14), and this adaptor union (16,400) be provided be used for the checking and the complete bonded assembly detection means (90,406) that cooperates pipeline (10)
Wherein, mark (88) is located on the pitch tube (14), with corresponding to detection means (90,406) installation and dismounting direction or detection means (90,406) with respect to the installation of circumferential position with remove side, perhaps corresponding to the installation of detection means (90,406) and remove direction or detection means (90,406) with respect to the installation of circumferential position with remove the radially relative side of side.
18. as claim 14 or the 15 described pitch tubes that are used for transfer the fuel, wherein, adaptor union (300) be installed in pitch tube (14) be used to make pitch tube (14) and cooperate pipeline (10) bonded assembly end, and this adaptor union (300) is provided with and is used for and cooperates the retainer (302) that pipeline (10) engages, this retainer (302) has not from the radially-protruding function part of adaptor union (300) (324), this function part (324) be configured to by operate remove cooperate pipeline (10) and adaptor union (300) or with the engaging of retainer (302)
Wherein, described mark (88) is arranged on the pitch tube (14), with corresponding to function part (324) or function part (324) direction of operating with respect to circumferential position.
19. a manufacturing such as claim 12 or the 13 described methods that are used for the pitch tube of transfer the fuel, the method comprising the steps of:
Form holding sheet (14B) with along from an end of pitch tube main body (14A) to the whole length covering resin tube body (14A) of another end;
Make and be substantially columniform anti-vertical end and holding sheet (14B) beginning slip between pitch tube main body (14A) and holding sheet (14B) of cutting device (86) from pitch tube main body (14A); And
By on the outer surface that cutting blade (86) is applied to holding sheet (14B) and cutting blade (86) is rotated simultaneously by anti-with respect to holding sheet (14B) cut device (84) and protect this pitch tube main body (14A) in order to avoid be cut, thereby annular cutting holding sheet (14B) is to remove an annular end of holding sheet (14B) from pitch tube main body (14A).
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004366656 | 2004-12-17 | ||
| JP2004366654 | 2004-12-17 | ||
| JP2004366657 | 2004-12-17 | ||
| JP2004366654 | 2004-12-17 | ||
| JP2005342040 | 2005-11-28 | ||
| JP2005342039 | 2005-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1789068A true CN1789068A (en) | 2006-06-21 |
Family
ID=36787238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510129677 Pending CN1789068A (en) | 2004-12-17 | 2005-12-16 | Piping structure for transporting a fuel, resin tube for transporting fuel in the piping structure and producing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1789068A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274649B (en) * | 2007-03-29 | 2012-06-13 | 本田技研工业株式会社 | Fuel supply device for small-size vehicle |
| CN102575798A (en) * | 2010-10-01 | 2012-07-11 | 丰田自动车株式会社 | Pipe support structure |
| CN103723030A (en) * | 2012-10-12 | 2014-04-16 | 日产自动车株式会社 | Reinforcement structure for a vehicle fuel filler tube |
| CN101644368B (en) * | 2008-08-07 | 2014-07-09 | Ti集团机车***公司 | Quick connector coupling with pull tab verifier |
| CN106795984A (en) * | 2014-08-18 | 2017-05-31 | 本田技研工业株式会社 | For motor vehicle fuel distribution tube and its holder |
| CN104553754B (en) * | 2013-10-15 | 2017-06-16 | 本田技研工业株式会社 | The protection construction of fuel distribution tube |
| CN108050305A (en) * | 2017-11-30 | 2018-05-18 | 博耐尔汽车电气***有限公司 | A kind of damping washer of pipelines of automobile air conditioner |
| CN108506129A (en) * | 2017-02-01 | 2018-09-07 | 丰田自动车株式会社 | Fuel pipe arrangement |
| CN113212156A (en) * | 2020-01-21 | 2021-08-06 | 麦格纳能源储存***公司 | Fuel tank comprising a connecting piece |
-
2005
- 2005-12-16 CN CN 200510129677 patent/CN1789068A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274649B (en) * | 2007-03-29 | 2012-06-13 | 本田技研工业株式会社 | Fuel supply device for small-size vehicle |
| CN101644368B (en) * | 2008-08-07 | 2014-07-09 | Ti集团机车***公司 | Quick connector coupling with pull tab verifier |
| CN102575798A (en) * | 2010-10-01 | 2012-07-11 | 丰田自动车株式会社 | Pipe support structure |
| CN102575798B (en) * | 2010-10-01 | 2014-03-12 | 丰田自动车株式会社 | Pipe support structure |
| CN103723030A (en) * | 2012-10-12 | 2014-04-16 | 日产自动车株式会社 | Reinforcement structure for a vehicle fuel filler tube |
| CN104553754B (en) * | 2013-10-15 | 2017-06-16 | 本田技研工业株式会社 | The protection construction of fuel distribution tube |
| CN106795984A (en) * | 2014-08-18 | 2017-05-31 | 本田技研工业株式会社 | For motor vehicle fuel distribution tube and its holder |
| US10260464B2 (en) | 2014-08-18 | 2019-04-16 | Honda Motor Co., Ltd. | Fuel piping for vehicle, and clamp therefor |
| CN106795984B (en) * | 2014-08-18 | 2019-07-23 | 本田技研工业株式会社 | For motor vehicle fuel distribution tube and its clamping piece |
| CN108506129A (en) * | 2017-02-01 | 2018-09-07 | 丰田自动车株式会社 | Fuel pipe arrangement |
| CN108050305A (en) * | 2017-11-30 | 2018-05-18 | 博耐尔汽车电气***有限公司 | A kind of damping washer of pipelines of automobile air conditioner |
| CN113212156A (en) * | 2020-01-21 | 2021-08-06 | 麦格纳能源储存***公司 | Fuel tank comprising a connecting piece |
| CN113212156B (en) * | 2020-01-21 | 2023-11-03 | 麦格纳能源储存***公司 | Fuel tank comprising a connecting piece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1789068A (en) | Piping structure for transporting a fuel, resin tube for transporting fuel in the piping structure and producing method thereof | |
| CN1789773A (en) | Piping unit for transporting fuel | |
| CN1272521C (en) | Tubular threaded joint with reinforced stop | |
| CN101040121A (en) | Turbo machine, compressor impeller used for turbo machine, and method of manufacturing turbo machine | |
| CN1258658C (en) | Unbalance force support device | |
| CN101038055A (en) | Welded piping joint structure | |
| CN1515128A (en) | Speaker for vehicle and installation structure therefor | |
| CN1511735A (en) | Protective ring for bunch | |
| CN1292058A (en) | Threaded assembly of metal tubes designed to contain corrosive fluid | |
| CN1816712A (en) | Plug-in coupling | |
| CN1967020A (en) | Seal assembly for materials with different coefficients of thermal expansion | |
| CN1283385C (en) | Metal ring assembly which is assembled and soldered to support collar in order to form annular cooling conduit of IC engine piston, method of producing said finned metal ring and metal ring thus | |
| CN1977434A (en) | Method for covering an elongate object and device for covering said elongate object | |
| CN1403823A (en) | Wheel speed sensor and its producing method, terminal and method for welding terminal and wire | |
| CN1589374A (en) | Mounting piece for attachment to bolt and nut | |
| CN1898494A (en) | Quick connector with resin tube | |
| CN1902424A (en) | Method of producing a hermetic tubular joint comprising local and initial added thickness(es), by means of plastic expansion | |
| CN1875195A (en) | Pipe joint | |
| CN1621793A (en) | Pressure sensor | |
| US7040669B2 (en) | Fuel feeding pipe | |
| CN1523220A (en) | Engine air intake manifold | |
| CN1508420A (en) | Fuel-supplying apparatus | |
| CN1310776C (en) | Wheel structure and wheel assembling method | |
| CN1886591A (en) | Combustion gas seal for fuel injection valve | |
| CN1880132A (en) | Preloading device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |