CN101203441A - Tank cap - Google Patents
Tank cap Download PDFInfo
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- CN101203441A CN101203441A CNA200680022428XA CN200680022428A CN101203441A CN 101203441 A CN101203441 A CN 101203441A CN A200680022428X A CNA200680022428X A CN A200680022428XA CN 200680022428 A CN200680022428 A CN 200680022428A CN 101203441 A CN101203441 A CN 101203441A
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- lid
- button
- housing
- liner
- pressing position
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Abstract
A tank cap, comprising a cap body (20) fitted to a filler tube, a cap shell (22) connected to the upper part of the cap body, and a packing (23) installed on the cap body (20) and fitted to the filler tube. (I) In on type of the tank cap, a fuel tank, the cap shell, and the packing (23) are formed conductive, and an elastic contact piece (38) in slidable contact with the inner peripheral surface of the cap shell (22) is projectedly installed on the packing (23). (II) In the other type of the tank cap, a ratchet mechanism (35) is interposed between the cap shell (22) and the cap body (20) to connect them to each other and so that a cap knob (19) can be axially moved relative to the cap body (20) between a pressing releasing position and a pressing position, and an engagement means (40, 41) is installed to directly couple the cap knob (19) to the cap body (20) in the rotating direction when the cap knob (19) is moved to the pressing position. Thus, static electricity charged on a worker can be released to the fuel tank by a simple structure.
Description
Technical field
The present invention relates to a kind of case lid, this case lid comprises: be installed in the plastic lid on the oil-feed port tube of electric conductivity Fuel Tank; Be connected the top of this lid and be made for the electric conductivity housing that the industry personnel grip; And the liner of the sealing surface closed contact that is attached on the lid and forms with upper end at the oil-feed port tube, relate in particular to make the operating personnel that grips housing with static can be discharged into the improvement of the case lid of Fuel Tank.
Background technology
Above-mentioned Fuel Tank is known as disclosed in the patent documentation 1 for example.
Patent documentation 1: Japanese kokai publication hei 7-34985 communique
About disclosed case lid in described patent documentation 1, since the operating personnel with static be discharged into Fuel Tank, therefore under the state that case lid is installed on the oil-feed port tube, between the housing of electric conductivity and Fuel Tank, predetermined discharging gap is set, but suitably set all the time described discharging gap this on making and be not easy, so produce rate variance.
Summary of the invention
The present invention finishes in order to solve above-mentioned situation, that its purpose is to provide is simple in structure, make easily and can with the operating personnel with static be discharged to the described case lid of Fuel Tank.
In order to reach described purpose, of the present invention first is characterised in that case lid comprises: be installed in the plastic lid on the oil-feed port tube of electric conductivity Fuel Tank; Be connected the top of this lid and be made for the housing of the electric conductivity that the industry personnel grip; And the liner of the sealing surface closed contact that is attached on the lid and forms with upper end at the oil-feed port tube, wherein, liner constitutes has electric conductivity, and makes this liner flexibly contact housing.
In addition, on the basis of first feature, of the present invention second is characterised in that, be formed with the threaded portion that is used to screw on the oil-feed port tube on the lid, described lid and housing can be coupled together mutually rotatably, and between described housing and lid, clamp ratchet device, this ratchet device dallies when housing surpasses predetermined value with respect to the torque on the fastening direction of described threaded portion, is equipped with the flexibly spring contact pin of moving contact of inner peripheral surface with the cylindric perisporium of housing in the periphery one of liner.
In addition, on the basis of second feature, the of the present invention the 3rd is characterised in that, on the cylindric perisporium of housing, be formed with to foreign side protuberance and with a plurality of anti-skidding protrusion of using of equidistant arrangement, and the described elasticity contact pin of liner is a plurality of side by side with the spacing different with the spacing of described protrusion, at least one in these elasticity contact pin all the time, the cylindric perisporium of contact housing, except that corresponding to the inner peripheral surface the part of described protrusion.
In addition, on the basis of the second or the 3rd feature, the of the present invention the 4th is characterised in that, liner is by constituting as the lower part: the bottom rib of ring-type, its closed contact sealing surface; The top rib of ring-type, it is configured in the top of this bottom rib; And connecting portion, its interior Zhou Duan with described both sides of the chest is connected to one, and is installed in the padding-installing slot of the ring-type that the outer peripheral face of lid forms, and makes the periphery of any one party of described elasticity contact pin from described both sides of the chest outstanding.
In addition, on the basis of first to fourth feature, the of the present invention the 5th is characterised in that, housing is metal.
In addition, the of the present invention the 6th is characterised in that, this case lid comprises: the lid with the threaded portion on the oil-feed port tube that is used to screw Fuel Tank; Rotation is connected and is made for the lid button of industry personnel gripping freely with this lid; Ratchet device, this ratchet device set to coupling together will covering between button and lid on the hand of rotation, cover button and dally when the lid button makes when surpassing predetermined value with respect to the torque on the fastening direction of lid; And the liner of the sealing surface closed contact that is attached on the lid and forms with upper end at the oil-feed port tube, wherein, to cover button is connected on the lid, the feasible button that covers can be with respect to lid along axially moving between pressing position and releasing pressing position, between lid button and lid, be provided with: application of force unit, this application of force unit is to the direction application of force of lid button to described releasing pressing position; With the engaging unit, this engaging unit carries out snap action to covering when button moves to described pressing position at the application force that overcomes this application of force unit, will cover button and lid at the hand of rotation direct connect.
In addition, on the basis of the 6th feature, the of the present invention the 7th is characterised in that, on lid and lid button, be respectively arranged with at side face and have the axial region of link slot of ring-type with rotatable and can be sticked in the pawl that is connected in this link slot vertically movably, so that will be connected to and relatively to rotate between lid and the lid button, and can make cover button with respect to lid at described pressing position and remove between the pressing position and move, on lid, be formed with and the described opposed flange part of axial end that is connected pawl, be formed with recess and projection on the opposed faces of this connection pawl and flange part, described recess and projection engage mutually or break away from removing mobile between the pressing position at described pressing position corresponding to the lid button and constitute described engaging unit.
In addition, on the basis of the 7th feature, the of the present invention the 8th is characterised in that, described recess and projection are provided with a plurality of respectively, and these recesses and projection can be engaged with its part all the time and rest parts can not engage the opposed mode in ground arrange, give elasticity to described flange part, make described flange part via the described projection that does not engage with described recess to the lid button to the elasticity of removing the pressing position application of force, thereby constitute described application of force unit.
In addition, on the basis of the 7th or the 8th feature, the of the present invention the 9th is characterised in that, the upper surface of the padding-installing slot of the ring-type that forms on the lid of described liner to be installed is made of the lower surface of described flange part.
In accordance with a first feature of the invention, liner constitutes to have electric conductivity and makes this liner flexibly contact housing, by this extremely simple structure, the static that grips the operating personnel of housing can be discharged to Fuel Tank via liner.And because the elastic contact part between liner and the housing is not in height required dimensional accuracy, so the manufacturing of liner also is easier to, and helps the raising of the capacity rating of housing.
According to second feature of the present invention, when lid being screwed togather, being anchored on the oil-feed port tube, can prevent because the idle running of ratchet device and the threaded portion that excessive tightness caused and the breakage of liner.And, even when ratchet device dallies, also can slide at the inner peripheral surface of housing by the elasticity contact pin of liner, keep the contact condition of housing and elasticity contact pin, and can prevent the inappropriate distortion of liner.
According to the 3rd feature of the present invention, even on the cylindric perisporium of housing, exist to foreign side's protuberance and with the equidistant a plurality of anti-skidding protrusion of using arranged side by side, also can guarantee the elasticity contact pin and the housing state of contact of liner all the time reliably, and not influenced by this protrusion, and be not subjected to the influence of the relatively rotation place of housing and lid.
According to the 4th feature of the present invention, utilize the rib of liner can easily form the elasticity contact pin that is imbued with flexibility, therefore can obtain liner at an easy rate with elasticity contact pin.
According to the 5th feature of the present invention, can make the electric conductivity housing at an easy rate, can help the cost of housing to reduce.
According to the 6th feature of the present invention, when case lid being installed on the oil-feed port tube, firmly going into to cover under the situation of button to the side pressure of oil-feed port tube, the engaging unit carries out snap action to be made to cover and becomes direct coupled state between button and the lid, be not directly passed to lid so will not cover the torque of button on fastening direction, thereby can reliably lid be screwed on the oil-feed port tube via ratchet device.
According to the 7th feature of the present invention, utilize to make lid and cover between button can counterrotating connection structure, can constitute the engaging unit simply, this helps the simplification of cover structure.
According to the 8th feature of the present invention, by giving elasticity, can constitute application of force unit simply to having the engaging recess of unit or the flange part of projection, can help the simplification of cover structure.
According to the 9th feature of the present invention,, can help the simplification of cover structure by effectively utilizing the padding-installing slot that the flange part with the engaging recess of unit or projection forms ring-type.
With reference to accompanying drawing, and the explanation of the preferred embodiment by following detailed description, purpose, feature and the advantage of above-mentioned other of the present invention will become clearer.
Description of drawings
Fig. 1 is the front view of the general purpose engine that relates to of expression embodiments of the invention.(first embodiment)
Fig. 2 is the longitudinal section that expression is installed in the Fuel Tank on this driving engine.(first embodiment)
Fig. 3 is the enlarged drawing (along the cutaway view of the 3-3 line among Fig. 8) of 3 parts among Fig. 2.(first embodiment)
Fig. 4 is and the corresponding Action Specification figure of Fig. 3.(first embodiment)
Fig. 5 is the enlarged drawing of 5 parts among Fig. 3.(first embodiment)
Fig. 6 is the enlarged drawing of 6 parts among Fig. 3.(first embodiment)
Fig. 7 is the cutaway view along the 7-7 line among Fig. 3.(first embodiment)
Fig. 8 is the cutaway view along the 8-8 line among Fig. 3.(first embodiment)
Fig. 9 is the birds-eye view of the lid monomer in the case lid.(first embodiment)
Label declaration
A: fastening direction;
N: remove pressing position;
P: pressing position;
T: Fuel Tank;
18: the oil-feed port tube;
18a: sealing surface;
19: lid button (cap knob);
20: lid;
20c: flange part;
20c: application of force unit;
22: housing;
22a: cylindric perisporium;
23: liner;
23a: bottom rib;
23b: top rib;
23c: connecting portion;
24: the threaded portion;
25: padding-installing slot;
28: connect pawl;
30: protrusion;
35: ratchet device;
38: elasticity contact pin;
40: projection;
40,41: the engaging unit;
41: recess
The specific embodiment
Below, with reference to the accompanying drawings the preferred embodiment of the invention is described.
First embodiment
At first, in Fig. 1, symbol E represents the general four-stroke motor as the propulsion source of various working machines.This driving engine E has the crankcase 2 of the bent axle 1 that is supporting the along continuous straight runs configuration and the cylinder portion 3 of giving prominence to obliquely upward from this crankcase 2, directly over crankcase 2, dispose Fuel Tank T by its supporting, and the side in cylinder portion 3 is equipped with carburettor 4, airfilter 6 is connected with this carburettor 4 via free air diffuser 5, airfilter 6 with the mode that is listed in Fuel Tank T side be configured in cylinder portion 3 directly over.
In Fig. 2, above-mentioned Fuel Tank T is made of following three: form cup-shaped and opposed respectively and be divided into the upper tank halfbody 7 and the lower tank halfbody 8 of fuel storage cell 10; With the base plate 9 of the lower surface of reserving ground, space covering lower tank halfbody 8, described upper tank halfbody 7, lower tank halfbody 8 and base plate 9 these threes' peripheral part is concentrated and the ca(u)lk joint is one.These base plate 9 usefulness bolts 13,13 are installed on across rubber (mount gum) 12,12 is installed on the carriage of fixing on the top of crankcase 2 11, and Fuel Tank T elastic support is on driving engine E like this.Upper tank halfbody 7, lower tank halfbody 8 and base plate 9 all are that steel plate system, particularly upper tank halfbody 7 are by film color steel sheet system that 16 (with reference to Fig. 5) form of baking in advance on the surface of steel plate.
The fuel conductor 14 that is opened on the fuel storage cell 10 is connected on the diapire of lower tank halfbody 8 via filter 15, the fuel of the fuel storage cell 10 that is filtered in filter 15 is fed in the described carburettor 4 by this fuel conductor 14 because of gravity, at this moment, on case lid C described later, has the staggered pore (air vent) that can make fuel storage cell 10 ventilations.
As shown in Figure 3, the mode ca(u)lk that the upper end of the oil-feed port tube 18 of clad steel sheet system is exposed with this upper end is bonded on the central portion of upper tank halfbody 7, is formed with funnelform sealing surface 18a on the upper end of exposing of this oil-feed port tube 18.Be connected with the fuel filter 17 that the fuel that is injected in the fuel storage cell 10 is filtered in the lower end of oil-feed port tube 18.Case lid C also is installed on oil-feed port tube 18.
In Fig. 4, Fig. 5～Fig. 9, the main composition key element of this case lid C is plastic lid 20, lid button 19 and liner (packing) 23, this lid button 19 by be provided in lid 20 directly over plastic inner cap (cap inner) 21 and cover the upper surface of this inner cap 21 and housing 22 formations of the steel plate system of outer peripheral face.
As Fig. 6～shown in Figure 8, inner cap 21 is outstanding to its periphery with star, and has a plurality of protrusion 21a, the 21a that leading section bends downwards ...In the periphery of this inner cap 21, the chimeric cylindraceous described housing 22 that the band top is arranged.On the outer peripheral face of this housing 22, form a plurality of protrusion 21a, 21a with inner cap 21 ... be accommodated in inboard a plurality of protrusions 30,30 ... by will be from this protrusion 30,30 ... cut out the fastening pawl 31,31 that erects ... with described protrusion 21a, 21a ... the recess 32,32 of outside face ... fasten, thus housing 22 is fixed on the inner cap 21.So just constituted lid button 19.Described protrusion 30,30 ... as the anti-skidding portion that housing 22 is rotated when operation.
On the outer peripheral face of the described axial region 20b of lid 20, be provided with the link slot 27 of ring-type, engaging has the connection pawl 28,28 of giving prominence to a plurality of L word shapes of the annular arrangement that is provided with at the lower surface of inner cap 21 in this link slot 27 ..., thus lid 20 and lid button 19 can be coupled together with the relative rotation.
Herein, if the hand of rotation of the lid button 19 when lid 20 is screwed into oil-feed port tube 18 (hereinafter referred to as fastening direction) is A, if the hand of rotation opposite with it (hereinafter referred to as lax direction) is B, between inner cap 21 and lid 20, clamped ratchet device 35, this ratchet device 35 can be in predetermined moment scope passes to lid 20 with the rotation of the fastening direction A of inner cap 21, and lid 20 is not taken place to pass to slidably for the rotation of the lax direction B of inner cap 21.
That is, as Fig. 3 and shown in Figure 7, this ratchet device 35 is by constituting as the lower part: hook tooth 36, and it is formed on the lid 20, and is disposed at its inboard with one heart with described axial region 20b cylindraceous; With a plurality of sour jujube bars 37,37 ... they and inner cap 21 form, and engage with described hook tooth 36 elasticity, when making housing 22 and inner cap 21 along fastening direction A rotation, this torque surpasses makes described liner 23 suitably during the required predetermined torque of the sealing surface 18a of closed contact oil-feed port tube 18, sour jujube bar 37,37 ... skid off from hook tooth 36, in contrast, when housing 22 and inner cap 21 are rotated along lax direction B, sour jujube bar 37,37 ... and can not slide between the hook tooth 36, inner cap 21 and lid 20 are rotated integratedly.
In Fig. 3～Fig. 7, the a plurality of described pawl 28,28 that is connected of the described link slot 27 of lid 20 and inner cap 21 ... be sized to, connect pawl 28,28 ... can in link slot 27, move a certain distance vertically, thus make cover button 19 can on the lid 20 below pressing position P and above releasing pressing position N between move vertically.Described ratchet device 35 by endwisely slipping and the deflection of sour jujube bar 37 on the engaging piece that is meshed between hook tooth 36 and the sour jujube bar 37, moves axially along described thereby allow to cover button 19.
At a plurality of connection pawls 28,28 ... the lower surface on formed projection 40,40 respectively ... can connect pawl 28,28 for these ... projection 40,40 ... the recess 41,41 of a plurality of groove shapes of engaging ..., be formed on the upper surface of the described flange part 20c of lid 20.
As Fig. 8 and shown in Figure 9, on any one relatively rotation place of lid button 19 and lid 20, make described a plurality of projection 40,40 all the time ... with recess 41,41 ... with its a part of projection 40 and recess 41 can engage and remaining projection 40 and recess 41 can not engage the opposed mode in ground arrange.That is, make projection 40,40 ... with recess 41,41 ... spacing separately is different with number.And described flange part 20c is given by 40 pairs of lid buttons 19 of projection of not engaging with recess 41 to the elasticity of removing the pressing position N application of force.
Get back among Fig. 5 and Fig. 7, described liner 23 is by constituting as the lower part: the bottom rib 23a of ring-type, the described sealing surface 18a closed contact of itself and oil-feed port tube 18; The top rib 23b of ring-type, it is above the rib 23a of this bottom, with the described flange part 20c lower surface closed contact of lid 20; And connecting portion 23c, its interior all end with these both sides of the chest 23a, 23b is connected to one, and is installed in the described padding-installing slot 25 of lid 20.At this moment, any one party among both sides of the chest 23a, the 23b, in illustrated example for being formed with a plurality of elasticity contact pin 38,38 on the periphery of top rib 23b ... this elasticity contact pin 38,38 ... with the perisporium 22a of housing 22 remove protrusion 30,30 ... inner peripheral surface Elastic Contact in addition, slip effect by ratchet device 35, when rotation relatively takes place between housing 22 and lid 20, each elasticity contact pin 38,38 ... tilt towards certain orientation in the mode of on the inner peripheral surface of housing 22, sliding swimmingly.And, though make a plurality of elasticity contact pin 38,38 ... and described protrusion 30,30 ... axis around case lid C is arranged equally spacedly, but elasticity contact pin 38,38 ... with described protrusion 30,30 ... arrangement number difference, therefore spacing difference separately.Thus, even on any one relatively rotation place of housing 22 and lid 20, a plurality of all the time elasticity contact pin 38,38 ... in some can with a plurality of protrusions 30,30 that remove of housing 22 ... inner peripheral surface contact in addition.At lid button 19 with respect to lid 20 during along described moving axially, by these elasticity contact pin 38,38 ... deflection or slip keep these elasticity contact pin 38,38 ... contact condition with housing 22 inner peripheral surfaces.
Described liner 23 is by the conductive elastic material, for example contain the material that polyethylene and carbon forms and form by sneaking in natural rubber.At this moment, preferably the volume intrinsic resistance rate of liner 23 is set at 10
4Ω～10
10Ω cm.
Then, the effect to present embodiment describes.
Installing under the state of case lid C to oil-feed port tube 18, the lid 20 of electric conductivity is screwed together on the oil-feed port tube 18 of metal Fuel Tank T, and be installed on the liner 23 of the electric conductivity on this lid 20 and the sealing surface 18a closed contact of oil-feed port tube 18, the elasticity contact pin 38,38 of this liner 23 ... contact with metal housing 22, thus housing 22 be in across liner 23 and with the state of Fuel Tank T electrical grounding.Therefore, when the operation personnel gripped housing 22 in order to refuel in Fuel Tank T, if this operating personnel has static, then this static can be discharged into Fuel Tank T by liner 23.
Like this, housing 22 is metal, and have the elasticity contact pin 38,38 that contacts with this housing 22 ... liner 23 constitute and have electric conductivity, by this open-and-shut structure, operating personnel's static can be discharged into Fuel Tank, and, owing to elasticity contact pin 38,38 to liner 23 ... in height do not require dimensional accuracy, the manufacturing of liner 23 also is easier to thus.And, be easy on plastic lid 20, form threaded portion 24, and the making of metal housing 22 is easy and Dent resistance is high, can provide a kind of capacity rating and durability all high case lid C thus at an easy rate.
And, lid 20 and housing 22 can be rotated connection freely mutually, and between this housing 22 and lid 20, clamped ratchet device 35, this ratchet device 35 dallies when housing 22 surpasses predetermined value with respect to the torque on the fastening direction A of described threaded portion 24, be equipped with the flexibly elasticity contact pin 38 of moving contact of inner peripheral surface with the cylindric perisporium 22a of housing 22 integratedly in the periphery of liner 23,38 ... thus lid 20 is being screwed togather, when being anchored on oil-feed port tube 18, can prevent because the idle running of ratchet device 35 and the threaded portion 24 that excessive tightness caused and the breakage of liner 23.And, even when ratchet device 35 idle running, also can be by the elasticity contact pin 38,38 of liner 23 ... inner peripheral surface at housing 22 slides, and keeps housing 22 and elasticity contact pin 38,38 ... contact condition, and can prevent the inappropriate distortion of liner 23.
And, on the cylindric perisporium 22a of housing 22, be formed with to foreign side's protuberance and with a plurality of anti-skidding protrusion 30 of using equidistantly arranged side by side, 30 ... and with the described elasticity contact pin 38 of liner 23,38 ... with with described protrusion 30,30 ... the different spacing of spacing a plurality of side by side, all the time this elasticity contact pin 38,38 ... in at least one, the cylindric perisporium 22a's of contact cover 22, remove corresponding to described protrusion 30,30 ... inner peripheral surface beyond the part, thus, even on the cylindric perisporium 22a of housing 22, exist to foreign side's protuberance and with a plurality of anti-skidding protrusion 30 of using equidistantly arranged side by side, 30 ... also can guarantee the elasticity contact pin 38 of liner 23 all the time, 38 ... with housing 22 state of contact, and be not subjected to this protrusion 30 yet, 30 ... influence, and be not subjected to the influence of the relatively rotation place of housing 22 and lid 20, thereby guarantee the ground state of housing 22 with respect to Fuel Tank T.
And liner 23 is by constituting as the lower part: the bottom rib 23a of ring-type, the sealing surface 18a of its closed contact oil-feed port tube 18; Top rib 23b, its above the rib 23a of this bottom, the flange part 20c lower surface of closed contact lid 20; And connecting portion 43c, its interior Zhou Duan with described both sides of the chest 23a, 23b is connected to one, and be installed in the padding-installing slot 25 of the ring-type that lid 20 outer peripheral faces form, described elasticity contact pin 38,38 ... the periphery of any one party from described both sides of the chest 23a, 23b is outstanding, can utilize the top rib 23b or the bottom rib 23a of liner 23 thus, easily form the elasticity contact pin 38,38 that is imbued with flexibility ..., therefore, can obtain to be with elasticity contact pin 38,38 at an easy rate ... liner 23.
On the other hand, the upper tank halfbody 7 of Fuel Tank T is taked the color steel sheet manufacturing, and on this upper tank halfbody 7 ca(u)lk engage clad steel sheet system oil-feed port tube 18 the upper end and this upper end is exposed, and be formed with funnelform sealing surface 18a in the upper surface of this oil-feed port tube 18 that exposes with liner 23 closed contacts, so after Fuel Tank T has made, shelter in the sealing surface 18a and the outside face of case to be implemented application this numerous and diverse sheltered coating process and just can omit, thereby help to improve the capacity rating of Fuel Tank T.
And, by sealing surface 18a is formed on the upper end of oil-feed port tube 18 of clad steel sheet system, even thereby accidental the peeling off of filming of the upper tank halfbody 7 of color steel sheet system is not subjected to the influence of this release coated film yet, can keep sealing surface 18a all the time well with this.
In addition, with the upper end of oil-feed port tube 18 so that the mode ca(u)lk that expose this upper end engage, and be formed with described sealing surface 18a in the upper surface of this oil-feed port tube 18 that exposes, thereby strengthened the rigidity of sealing surface 18a, can improve its leak tightness and durability effectively, and can when fuel feeding, make attached to the fuel on the sealing face 18a to run down in the Fuel Tank T, therefore can prevent the stained Fuel Tank of fuel surface along its funnelform inclined-plane.
And as mentioned above, a plurality of recesses 41,41 of the flange part 20c of lid 20 ... with lid button 19 be connected pawl 28,28 ... a plurality of projections 40,40 ... so that its a part of projection 40 and recess 41 can engage and remaining projection 40 and recess 41 can not engage the opposed mode in ground and arrange all the time on any relatively rotation place of lid button 19 and lid 20, the projection 40 that therefore can't engage with recess 41 is joined with the smooth upper surface of flange part 20c.And flange part 20c is by its elastic-restoring force, to the projection 40 of joining with its upper surface application of force upward, so this application force passes to whole lid button 19 from this projection 40.Consequently connect pawl 28,28 ... pressed and to be lifted to the releasing pressing position N that the upper surface with the link slot 27 of the axial region 20b of lid 20 connects, thus, can engage the opposed a part of projection 40 in ground and recess 41 also be maintained at mutual disengaged position, so lid button 19 can rotate along fastening direction A with respect to lid 20.
Therefore, when oil-feed port tube 18 is installed case lid C, do not apply king-sized downforce to lid button 19, oil-feed port tube 18 is aimed in the threaded portion 24 of lid 20, make and cover button 19 and rotate quietly along fastening direction A, this torque meeting is via intermeshing sour jujube bar 37,37 like this ... pass to lid 20 with hook tooth 36, make threaded portion 24 be combined on oil-feed port tube 18, and can make the sealing surface 18a of liner 23 closed contact oil-feed port tubes 18.Then, when the closed contact that suitably carries out liner 23 and sealing surface 18a, thereby at intermeshing sour jujube bar 37,37 ... and when effect has torque more than the predetermined value between the hook tooth 36, sour jujube bar 37,37 ... can skid off and sound from hook tooth 36.Thus, the operating personnel can recognize that case lid C has been installed on the oil-feed port tube 18 exactly, so finish installation exercise this moment.Can prevent because the idle running of this ratchet device 35 and the threaded portion 24 that excessive tightness causes and the breakage of liner 23.
But, when case lid C is installed, when firmly going into to cover button 19 and when pressing position P moves, before threaded portion 24 is combined on oil-feed port tube 18, become the state of the sealing surface 18a of liner 23 closed contact oil-feed port tubes 18 to 18 side pressures of oil-feed port tube.
But, when lid button 19 has been pressed down to pressing position P, shown in the right-hand part side of Fig. 4, engage with this recess 41 with the recess 41 opposed projections 40 that are connected pawl 28 of flange part 20c, but shown in this figure left side side, the projection 40 of joining with the upper surface of flange part 20c makes the deflection of flange part 20c part, thereby does not hinder the engaging between a part of projection 40 and the recess 41.Therefore, lid button 19 and lid 20 via a part at the projection 40 of fastening state and recess 41 along the hand of rotation direct connect, so when the time to fastening direction A swivelling cover button 19, this torque is directly passed to lid 20 without ratchet device 35, can reliably lid 20 and oil-feed port tube 18 be screwed.
If remove downforce to lid button 19, then because the bounce of the part of deflection takes place downwards in projection 40 in flange part 20c, that do not engage with recess 41, make whole lid button 19 be pressed to lift to by this projection 40 and remove pressing position N, thereby case lid C returns to all projections 40,40 ... broken away from recess 41,41 ... free state.
And the flange part 20c of lid 20 is related to connection pawl 28,28 ... the formation of the link slot 27 of the ring-type that is engaged, also have can with the recess 41 of projection 40 engaging that is connected pawl 28 lower ends, therefore also be related to the engaging block construction that covers between button 19 and the lid 20, and be related to be endowed play shape and to lid button 19 to the application of force block construction of removing the pressing position N application of force, also be related to the formation of the padding-installing slot 25 on the lid 20 in addition, can cut down the number of parts by this, realize the simplification of case lid C-structure, help the reduction of cost.
In addition, the present invention is not limited to described embodiment, can carry out various design modifications in the scope that does not break away from its purport.For example, in first feature of the present invention, can it be set to special-purpose spring as application of force unit.
Claims (9)
1. case lid, this case lid comprises: be installed in the plastic lid (20) on the oil-feed port tube (18) of electric conductivity Fuel Tank (T); Be connected the top of this lid (20) and be made for the housing (22) of the electric conductivity that the industry personnel grip; And be attached to that lid (20) is gone up and the liner (23) of sealing surface (18a) closed contact that forms with upper end at oil-feed port tube (18), it is characterized in that,
Liner (23) constitutes has electric conductivity, and makes this liner (23) flexibly contact housing (22).
2. case lid according to claim 1 is characterized in that,
Be formed with the threaded portion (24) that is used to screw on the oil-feed port tube (18) on the lid (20), described lid (20) and housing (22) can be coupled together mutually rotatably, and between described housing (22) and lid (20), clamp ratchet device (35), this ratchet device (35) dallies when housing (22) surpasses predetermined value with respect to the torque on the fastening direction (A) of described threaded portion (24), is equipped with the flexibly spring contact pin (38) of moving contact of inner peripheral surface with the cylindric perisporium (22a) of housing (22) integratedly in the periphery of liner (23).
3. case lid according to claim 2 is characterized in that,
On the cylindric perisporium (22a) of housing (22), be formed with to foreign side's protuberance and with a plurality of anti-skidding protrusion (30) of using equidistantly arranged side by side, and the described elasticity contact pin (38) of liner (23) is a plurality of side by side with the spacing different with the spacing of described protrusion (30), all the time at least one in these elasticity contact pin (38), the cylindric perisporium (22a) of contact housing (22), except that corresponding to the inner peripheral surface the part of described protrusion (30).
4. according to claim 2 or 3 described case lids, it is characterized in that,
Liner (23) is by constituting as the lower part: the bottom rib (23a) of ring-type, the described sealing surface of its closed contact (18a); The top rib (23b) of ring-type, it is configured in the top of this bottom rib (23a); And connecting portion (23c), its interior Zhou Duan with described both sides of the chest (23a, 23b) is connected to one, and be installed in the padding-installing slot (25) of the ring-type that the outer peripheral face of lid (20) forms, make described elasticity contact pin (38) outstanding from the periphery of any one party of described both sides of the chest (23a, 23b).
5. according to each the described case lid in the claim 1 to 4, it is characterized in that,
Housing (22) is metal.
6. case lid, this case lid comprises: the lid (20) with the threaded portion (24) on the oil-feed port tube (18) that is used to screw Fuel Tank (T); Rotation is connected and is made for the lid button (19) of industry personnel gripping freely with this lid (20); Ratchet device (35), this ratchet device (35) sets to coupling together will covering on the hand of rotation between button (19) and the lid (20), covers button (19) and dallies when lid button (19) makes when surpassing predetermined value with respect to the torque on the fastening direction (A) of lid (20); And be attached to that lid (20) is gone up and the liner (23) of sealing surface (18a) closed contact that forms with upper end at oil-feed port tube (18), it is characterized in that,
To cover button (19) is connected on the lid (20), the feasible button (19) that covers can be with respect to lid (20) along axially moving between pressing position (P) and releasing pressing position (N), between lid button (19) and lid (20), be provided with: application of force unit (20c), this application of force unit (20c) is to the direction application of force of lid button (19) to described releasing pressing position (N); With engaging unit (40,41), this engaging unit (40,41) will be covered at the application force that overcomes this application of force unit (20c) and carry out snap action when button (19) moves to described pressing position (P), will cover button (19) and lid (20) at the hand of rotation direct connect.
7. case lid according to claim 6 is characterized in that,
On lid (20) and lid button (19), be respectively arranged with at side face and have the axial region (20b) of link slot (27) of ring-type with rotatable and can be sticked in movably vertically and be connected pawl (28) in this link slot (27), so that will be connected to and relatively to rotate between lid (20) and the lid button (19), and can make cover button (19) with respect to lid (20) at described pressing position (P) and remove between the pressing position (N) and move
On lid (20), be formed with and the described opposed flange part of axial end (20c) that is connected pawl (28), be formed with recess (41) and projection (40) on the opposed faces of described connection pawl (28) and flange part (20c), described recess (41) and projection (40) engage mutually or break away from removing mobile between the pressing position (N) at described pressing position (P) corresponding to lid button (19) and constitute described engaging unit.
8. case lid according to claim 7 is characterized in that,
Described recess (41) and projection (40) are provided with a plurality of respectively, and described recess (41) and projection (40) can be engaged with its part all the time and rest parts can not engage the opposed mode in ground arrange, (20c) gives elasticity to described flange part, make described flange part (20c) via the described projection (40) that does not engage with described recess (41) to lid button (19) to removing pressing position (N) application of force, thereby constitute described application of force unit.
9. according to claim 7 or 8 described case lids, it is characterized in that,
The upper surface of the padding-installing slot (25) of the ring-type that forms on the lid (20) of described liner to be installed (23) is by the lower surface formation of described flange part (20c).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005183597A JP4648108B2 (en) | 2005-06-23 | 2005-06-23 | Tank cap |
| JP183597/2005 | 2005-06-23 | ||
| JP254565/2005 | 2005-09-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101203441A true CN101203441A (en) | 2008-06-18 |
| CN100586806C CN100586806C (en) | 2010-02-03 |
Family
ID=37687570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200680022428A Expired - Fee Related CN100586806C (en) | 2005-06-23 | 2006-06-23 | Tank cap |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4648108B2 (en) |
| CN (1) | CN100586806C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454519A (en) * | 2010-10-21 | 2012-05-16 | 科勒公司 | Closure device for controlling evaporative emissions from a fuel tank |
| CN105612340A (en) * | 2013-11-28 | 2016-05-25 | 八千代工业株式会社 | Seal structure for fuel tank |
| CN105711525A (en) * | 2014-12-02 | 2016-06-29 | 上海亚大汽车塑料制品有限公司 | Conductive oil filler pipe assembly |
| CN106274450A (en) * | 2015-06-29 | 2017-01-04 | 本田技研工业株式会社 | The sealing structure of fuel tank |
| CN107795418A (en) * | 2016-09-01 | 2018-03-13 | 曼·胡默尔有限公司 | The coupling arrangement of filter that can change, in-between part and there is its filtration system |
| CN111919022A (en) * | 2018-03-28 | 2020-11-10 | 爱三工业株式会社 | Fuel tank cap |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8096438B2 (en) | 2008-06-03 | 2012-01-17 | Briggs & Stratton Corporation | Fuel tank cap for a fuel tank |
| US8915234B2 (en) | 2010-10-25 | 2014-12-23 | Briggs & Stratton Corporation | Fuel cap |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0640462A (en) * | 1992-01-28 | 1994-02-15 | Honda Motor Co Ltd | Tank cap |
| JP3901493B2 (en) * | 2001-11-02 | 2007-04-04 | 本田技研工業株式会社 | Tank cap |
| JP4045494B2 (en) * | 2002-12-09 | 2008-02-13 | いすゞ自動車株式会社 | Fuel filler opening structure |
-
2005
- 2005-06-23 JP JP2005183597A patent/JP4648108B2/en active Active
-
2006
- 2006-06-23 CN CN200680022428A patent/CN100586806C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454519A (en) * | 2010-10-21 | 2012-05-16 | 科勒公司 | Closure device for controlling evaporative emissions from a fuel tank |
| CN102454519B (en) * | 2010-10-21 | 2015-06-17 | 科勒公司 | Closure device for controlling evaporative emissions from a fuel tank |
| US9193260B2 (en) | 2010-10-21 | 2015-11-24 | Kohler Co. | Closure device for controlling evaporative emissions from a fuel tank |
| CN105612340A (en) * | 2013-11-28 | 2016-05-25 | 八千代工业株式会社 | Seal structure for fuel tank |
| CN105612340B (en) * | 2013-11-28 | 2018-05-22 | 八千代工业株式会社 | The sealing structure of fuel tank |
| CN105711525A (en) * | 2014-12-02 | 2016-06-29 | 上海亚大汽车塑料制品有限公司 | Conductive oil filler pipe assembly |
| CN106274450A (en) * | 2015-06-29 | 2017-01-04 | 本田技研工业株式会社 | The sealing structure of fuel tank |
| CN106274450B (en) * | 2015-06-29 | 2018-10-30 | 本田技研工业株式会社 | The sealing structure of fuel tank |
| CN107795418A (en) * | 2016-09-01 | 2018-03-13 | 曼·胡默尔有限公司 | The coupling arrangement of filter that can change, in-between part and there is its filtration system |
| CN107795418B (en) * | 2016-09-01 | 2021-09-07 | 曼·胡默尔有限公司 | Coupling device for a replaceable filter, intermediate part therefor and filter system having the same |
| CN111919022A (en) * | 2018-03-28 | 2020-11-10 | 爱三工业株式会社 | Fuel tank cap |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007001616A (en) | 2007-01-11 |
| JP4648108B2 (en) | 2011-03-09 |
| CN100586806C (en) | 2010-02-03 |
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