CN103895458B - Valve unit - Google Patents
Valve unit Download PDFInfo
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- CN103895458B CN103895458B CN201310662474.8A CN201310662474A CN103895458B CN 103895458 B CN103895458 B CN 103895458B CN 201310662474 A CN201310662474 A CN 201310662474A CN 103895458 B CN103895458 B CN 103895458B
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Abstract
The invention provides a valve unit to fully ensure the airtight performance in an inner chamber of a tyre and ensure the electric conduction between the inner chamber of the tyre and external power. Electrode pairs formed by a first electrode plate and a second electrode plate are respectively arranged between a valve nut and a wheel rim and between a flange portion of a valve stem and the rim. In each electrode pair, the first electrode plate contacts with the rim to ensure conduction with the rim, and the second electrode plate contacts with the flange portion or the valve nut to ensure the conduction with the valve stem. Between the first electrode plate and the second electrode plate, the conduction is prevented due to washer body between the first electrode plate and the second electrode plate. The first electrode plate does not conduct with the rod main body through a first protruding portion of the washer, and the rim does not conduct with the stem rod through a second protruding portion of the washer and is sealed.
Description
Technical field
The present invention relates to fully guarantee the air-tightness in tyre cavity, and can by tyre cavity with outside conductance
Logical valve cell.
Background technology
In recent years, tire air pressure monitoring system is carried out in order to improve the driving safety of vehicle（Hreinafter referred to as
TPMS）Exploitation, i.e.,：Air pressure, the temperature of measurement tire, and the information is sent to body side notify driver（Example
As with reference to patent document 1）.Such TPMS needs the electricity that the electric devices such as air pressure sensor, the transmitter of tire are used.
Therefore in the past, by arranging through hole to wheel rim and making electric wire through the through hole, thus from being arranged in tire
Power supply on the outside of chamber is to the electric device supply electricity in tyre cavity.In addition after wiring, by blocking above-mentioned with encapsulant
Through hole, thus remains tyre cavity airtight.
But electric wire be will after a plurality of monofilament harness with plastic insulating barrier covering obtained from.Even if therefore will
Blocked with encapsulant between insulating barrier and through hole, also due to there is small gap between monofilament in insulating barrier, therefore
Air leakage etc. is produced by the gap and sufficient air-tightness cannot be guaranteed.
Patent document 1：Japanese Unexamined Patent Publication 2004-145474 publications
The content of the invention
Therefore the problem of invention is to provide a kind of valve cell, fully guarantees the air-tightness in tyre cavity, and energy
It is enough to conduct with outside in tyre cavity.
Invention in the present invention described in technical scheme 1 is a kind of valve cell,
At least include：
Valve rod, the valve rod have through wheel rim valve opening and to inside and outside tyre cavity extend tubular bar main body and set
Put the inner flange part on the inside of the tyre cavity of the bar main body；
Valve nut, the valve nut than above-mentioned wheel rim by the position screw-tightened on the outside of tyre cavity in above-mentioned bar main body,
And clamping wheel rim is fixed between the valve nut and above-mentioned flange part；And
Packing ring, inserts in above-mentioned bar main body outside the packing ring, and will seal between the bar main body and wheel rim,
The valve cell is characterised by having：
Electrode pair on the inside of tyre cavity, the electrode pair on the inside of the tyre cavity includes：Above-mentioned flange part and wheel rim it
Between outer insert in above-mentioned bar main body, and the first electrode plate turned on the wheel rim by contact with above-mentioned wheel rim；With by with
The second electrode plate that above-mentioned flange part is contacted and turned on above-mentioned valve rod；And
Electrode pair on the outside of tyre cavity, the electrode pair on the outside of the tyre cavity includes：Above-mentioned valve nut and wheel rim it
Between outer insert in above-mentioned bar main body, and the first electrode plate turned on the wheel rim by contact with above-mentioned wheel rim；By direct
Or the second electrode plate for contacting with above-mentioned valve nut via pad and turning on above-mentioned valve rod, and
Above-mentioned packing ring includes the packing ring and the pad on the outside of tyre cavity on the inside of the tyre cavity that formed by non-conductive rubber
Circle, and
Packing ring on the inside of above-mentioned tyre cavity has：
Body part, the body part is installed between the first electrode plate on the inside of above-mentioned tyre cavity and second electrode plate, will
It is set to be not turned between the first electrode plate and second electrode plate；
First ledge, first ledge from above-mentioned body part towards tyre cavity outer concentric it is prominent, and
And the clearance portion by being installed between the centre bore of above-mentioned first electrode plate and bar main body, thus by above-mentioned first electrode plate
It is set to be not turned between valve rod；And
Second ledge, second ledge is projected with one heart from above-mentioned first ledge, and by being pressed from both sides
The clearance portion being mounted between above-mentioned valve opening and bar main body, thus will seal between the valve opening and bar main body and is set to be not turned on,
And
Packing ring on the outside of above-mentioned tyre cavity has：
Body part, the body part is installed between the first electrode plate on the outside of above-mentioned tyre cavity and second electrode plate, will
It is set to be not turned between the first electrode plate and second electrode plate；
First ledge, first ledge from the body part towards tyre cavity inner concentric it is prominent, and
By the clearance portion being installed between the centre bore of above-mentioned first electrode plate and bar main body, thus by above-mentioned first electrode plate with
It is set to be not turned between valve rod；And
Second ledge, second ledge is projected with one heart from above-mentioned first ledge, and by being pressed from both sides
The clearance portion being mounted between above-mentioned valve opening and bar main body, thus will seal between the valve opening and bar main body and is set to be not turned on.
Valve cell described in other technical scheme 7,
At least include：
Valve rod, the valve rod has：Through wheel rim valve opening and to inside and outside tyre cavity extend tubular bar main body and set
Put in the centre position of the bar main body and the flange part on the outside of tyre cavity；
Valve nut, the valve nut than above-mentioned wheel rim by the position screw-tightened on the inside of tyre cavity in above-mentioned bar main body,
And clamping wheel rim is fixed between the valve nut and above-mentioned flange part；And
Packing ring, inserts in above-mentioned bar main body outside the packing ring, and will seal between the bar main body and wheel rim,
The valve cell is characterised by having：
Electrode pair on the inside of tyre cavity, the electrode pair on the inside of the tyre cavity includes：Above-mentioned valve nut and wheel rim it
Between outer insert in above-mentioned bar main body, and the first electrode plate turned on wheel rim by contact with above-mentioned wheel rim；With by direct
Or the second electrode plate for contacting with above-mentioned valve nut via pad and turning on above-mentioned valve rod；And
Electrode pair on the outside of tyre cavity, the electrode pair on the outside of the tyre cavity includes：Above-mentioned flange part and wheel rim it
Between outer insert in above-mentioned bar main body, and the first electrode plate turned on the wheel rim by contact with above-mentioned wheel rim；With by with
The second electrode plate that above-mentioned flange part is contacted and turned on above-mentioned valve rod, and
Above-mentioned packing ring includes the packing ring and the pad on the outside of tyre cavity on the inside of the tyre cavity that formed by non-conductive rubber
Circle, and
Packing ring on the inside of above-mentioned tyre cavity has：
Body part, the body part is installed between the first electrode plate on the inside of above-mentioned tyre cavity and second electrode plate, will
It is set to be not turned between the first electrode plate and second electrode plate；
First ledge, first ledge from above-mentioned body part towards tyre cavity outer concentric it is prominent, and
And the clearance portion by being installed between the centre bore of above-mentioned first electrode plate and bar main body, thus by above-mentioned first electrode plate
It is set to be not turned between valve rod；And
Second ledge, second ledge is projected with one heart from above-mentioned first ledge, and by being pressed from both sides
The clearance portion being mounted between above-mentioned valve opening and bar main body, thus will seal between the valve opening and bar main body and is set to be not turned on,
And
Packing ring on the outside of above-mentioned tyre cavity has：
Body part, the body part is installed between the first electrode plate on the outside of above-mentioned tyre cavity and second electrode plate, will
It is set to be not turned between the first electrode plate and second electrode plate；
First ledge, first ledge from the body part towards tyre cavity inner concentric it is prominent, and
By the clearance portion being installed between the centre bore of above-mentioned first electrode plate and bar main body, thus by above-mentioned first electrode plate with
It is set to be not turned between valve rod；And
Second ledge, second ledge is projected with one heart from above-mentioned first ledge, and by being pressed from both sides
The clearance portion being mounted between above-mentioned valve opening and bar main body, thus will seal between the valve opening and bar main body and is set to be not turned on.
In addition in technical scheme 2,8, the packing ring on the inside of above-mentioned tyre cavity has the 3rd ledge, and the 3rd projects
Part from above-mentioned body part towards tyre cavity inner concentric it is prominent, and be installed in above-mentioned second electrode plate centre bore and
Clearance portion between bar main body, and
Packing ring on the outside of above-mentioned tyre cavity has the 3rd ledge, and the 3rd ledge is from above-mentioned body part direction
Tyre cavity outer concentric ground is prominent, and the clearance portion being configured between the centre bore of above-mentioned second electrode plate and bar main body.
In addition in technical scheme 3,9, in the first electrode plate, second electrode plate and tire on the inside of above-mentioned tyre cavity
First electrode plate, second electrode plate on the outside of chamber, using the battery lead plate of same shape, and
The packing ring on the outside of packing ring and tyre cavity on the inside of above-mentioned tyre cavity, using the packing ring of same shape.
In addition in technical scheme 4,10, in a pre-assembly condition, what above-mentioned first ledge was projected from body part
Height Hb is 0.8～1.0 times of the thickness T of above-mentioned first electrode plate.
In addition in technical scheme 5,11, in a pre-assembly condition, the outer peripheral face of above-mentioned first ledge relative to
The angle, θ of the normal vertical with the end face of above-mentioned body part is 0～45 ° of scope, and 1/2 height position of the first ledge
The diameter Db for putting place is equal with the internal diameter Dt of the centre bore of above-mentioned first electrode plate.
In addition in technical scheme 6,12, in a pre-assembly condition, above-mentioned second ledge is from the first ledge
Prominent height Hh is less than 0.5 times of the thickness Tr of wheel rim.
The valve cell of the present invention, the valve rod of tire and wheel rim are used as wire, thus, it is possible to by tyre cavity and
Outside conducts.
Specifically, between valve nut and wheel rim and between the flange part and wheel rim of valve rod, it is separately installed with by
The electrode pair that one battery lead plate and second electrode plate are constituted.In each electrode pair, first electrode plate by contact with wheel rim and with this
Wheel rim is turned on.Additionally by the first ledge of packing ring is installed between the centre bore of first electrode plate and bar main body, by
This first electrode plate becomes with valve rod and is not turned on.In addition above-mentioned second electrode plate is with flange part or valve nut by contacting, thus
With valve rod conducting, remain and be not turned on by separating with wheel rim.
Therefore be configured at first electrode plate inside and outside tyre cavity each other can via wheel rim mutual conduction, configure in addition
Second electrode plate inside and outside tyre cavity each other can via valve rod mutual conduction.
On the other hand, between wheel rim and valve rod,
（a）By the screw-tightened of valve nut, and make valve nut, second electrode plate, the body part of packing ring, first electrode
Crimp respectively between plate, wheel rim, first electrode plate, the body part of packing ring, second electrode plate and flange part, and
（b）Graded being sealed by clamping the second protuberance of packing ring between valve opening and bar body part, so as to true
The air-tightness protected in tyre cavity.Additionally by above-mentioned（b）And make to become between wheel rim and valve rod and be not turned on.
Description of the drawings
Fig. 1 is the assembly of the pneumatic tire with wheel rim of an example of the use state of the valve cell for representing the present invention
Sectional view.
Fig. 2 is the sectional view of the valve cell for representing first embodiment.
Fig. 3 is its exploded perspective view.
Fig. 4 is the side view of the packing ring for representing the state before assembling.
Fig. 5（A）、（B）It is the top view and sectional view of the battery lead plate for representing the state before assembling.
Fig. 6 is the sectional view of the valve cell for representing second embodiment.
Fig. 7 is the concept map of the method for testing of the electric conductivity for representing table 1.
Description of reference numerals：1 ... valve cell；3 ... wheel rims；5 ... valve openings；6th, 7 ... electrode pairs；6A, 7A ... first electrode plate；
6B, 7B ... second electrode plate；10 ... valve rods；10A ... bar main bodys；10B ... flange parts；11 ... valve nuts；12nd, 12A, 12B ... pad
Circle；13 ... pads；15 ... body part；16 ... first ledges；17 ... second ledges；18 ... the 3rd ledges.
Specific embodiment
Hereinafter, embodiments of the present invention are described in detail.
Fig. 1 is the assembling of the pneumatic tire 2 with wheel rim 3 of an example of the use state of the valve cell 1 for representing the present invention
The sectional view of body.In this example, the inside of the tyre cavity 2H for being surrounded in pneumatic tire 2 and wheel rim 3, configuration is included for surveying
Air pressure, the sensor of temperature, the transmitter of amount tire is in interior known electric device 4.Above-mentioned electricity is represented in this example
Device of air 4 is fixed on the situation of the recess 3A of wheel rim 3.
Valve cell 1 is installed in addition in the valve opening 5 for be arranged at above-mentioned wheel rim 3.Valve cell 1 includes the electricity on the inside of tyre cavity
Extremely to the electrode pair 7 on the outside of 6 and tyre cavity.And it is electric in form the electrode pair 6 on the inside of above-mentioned tyre cavity first, second
Connect the positive pole extended from above-mentioned electric device 4 on pole plate 6A, 6B respectively（+）Side, negative pole（-）The electric wire 8 of side.In addition in shape
Connect respectively on first, second battery lead plate 7A, 7B of the electrode pair 7 on the outside of above-mentioned tyre cavity for example from being installed on wheel portion
The power supply of 3B etc.（It is not shown）The positive pole of extension（+）Side, negative pole（-）The electric wire 9 of side.
The first embodiment of Fig. 2,3 expression valve cells 1.The valve cell 1 of first embodiment is so-called outer fastening type
Pinched valve, is configured at least include：Valve rod 10, valve nut 11, packing ring（grommet）12 and above-mentioned electrode pair 6,7.
Above-mentioned valve rod 10 has：Through above-mentioned valve opening 5 to inside and outside tyre cavity extend tubular bar main body 10A and
The inner flange part 10B being arranged on the inside of the tyre cavity of bar main body 10A.For example it is adapted to adopt with JATMA equal-specifications institute
The existing valve rod of regulation is used as the valve rod 10.TRA, ETRTO etc. can also be included additionally as above-mentioned specification.
Above-mentioned valve nut 11 than above-mentioned wheel rim 3 by the position screw-tightened on the outside of tyre cavity in above-mentioned bar main body 10A,
Above-mentioned wheel rim 3 is clamped between above-mentioned flange part 10B and valve nut 11 to be fixed.For example it is adapted to adopt with JATMA equal-specifications
The existing valve nut of defined is used as the valve nut 11.It is as in the past in addition, it is also possible in the inner side of above-mentioned valve nut 11
Configuration is for example with the pad 13 of JATMA equal-specification defineds.
In addition the electrode pair 6 on the inside of above-mentioned tyre cavity is outer between above-mentioned flange part 10B and wheel rim 3 inserts in above-mentioned bar master
Body 10A.Electrode pair 6 on the inside of the tyre cavity is formed by first electrode plate 6A and second electrode plate 6B, wherein first electrode plate
6A is turned on by contacting with above-mentioned wheel rim 3 with the wheel rim 3, second electrode plate 6B by contact with above-mentioned flange part 10B and with
Above-mentioned valve rod 10 is turned on.
In addition the electrode pair 7 on the outside of above-mentioned tyre cavity is outer between above-mentioned valve nut 11 and wheel rim 3 inserts in above-mentioned bar master
Body 10A.Electrode pair 7 on the outside of above-mentioned tyre cavity is formed by first electrode plate 7A and second electrode plate 7B, wherein first electrode
Plate 7A is turned on by contacting with above-mentioned wheel rim 3 with the wheel rim 3；Second electrode plate 7B by directly or via pad 13 with it is upper
State valve nut 11 to contact（It is in this example to contact via pad 13）, thus turn on above-mentioned valve rod 10.
In this example, from from the viewpoint of reduction component count, above-mentioned first, second battery lead plate 6A, 6B and first, second
Battery lead plate 7A, 7B use the battery lead plate 14 of mutually the same shape.As shown in figure 5, the battery lead plate 14 has：Discoideus matrix
14A, it has the centre bore 14A1 for the insertion of above-mentioned valve rod 10；Wired portion 14B, its outer Zhou Dynasty from above-mentioned matrix 14A
It is prominent to radial outside.The wired portion 14B of this example, in its leading section riveting portion 14B1 is provided with, the riveting portion
14B1 sections are formed as "U" shape, for riveting said wires 8（Or 9）To be crimped, soldering etc..
In addition above-mentioned packing ring 12 is made up of non-conductive rubber, is particularly suitable for adopting specific insulation for 1.0 × 1010Ω·
The material of more than cm.The packing ring 12 is configured to include：The packing ring 12B on the outside of packing ring 12A and tyre cavity on the inside of tyre cavity.
Packing ring 12A on the inside of above-mentioned tyre cavity has：Be installed in above-mentioned first electrode plate 6A and second electrode plate 6B it
Between body part 15 and first ledge 16 prominent from the body part 15 towards tyre cavity outer concentric and from this
The second prominent with one heart ledge 17 of first ledge 16.
Thus above-mentioned body part 15 is made above-mentioned first electric by being installed between first electrode plate 6A and second electrode plate 6B
Become between pole plate 6A and second electrode plate 6B and be not turned on.In addition above-mentioned first ledge 16 is electric by being installed in above-mentioned first
Pole plate 6A（Battery lead plate 14）Centre bore 14A1 and bar main body 10A between gap in, thus make above-mentioned first electrode plate 6A with
Become between bar main body 10A and be not turned on.In addition above-mentioned second ledge 17 is by being installed in above-mentioned valve opening 5 and bar main body 10A
Between gap in, thus will seal between above-mentioned valve opening 5 and bar main body 10A and become and be not turned on.
Packing ring 12A on the inside of the tyre cavity of this example is also equipped with from above-mentioned body part 15 towards tyre cavity inner concentric ground
The 3rd prominent ledge 18.3rd ledge 18 is by being installed in above-mentioned second electrode plate 6B（Battery lead plate 14）In
In gap between heart hole 14A1 and bar main body 10A, thus will seal between centre bore 14A1 and bar main body 10A.Other second,
3rd ledge 17,18 contributes to suppressing rocking for first, second battery lead plate 6A, 6B, so that it is guaranteed that air-tightness.
Wherein, as shown in figure 4, in the packing ring 12A of state before assembling, above-mentioned first ledge 16 is from body part 15
Prominent height Hb is preferably in above-mentioned first electrode plate 6A（Battery lead plate 14）0.8～1.0 times of thickness T of scope.It is above-mentioned
The outer peripheral face of the first ledge 16 is preferably in 0 relative to the angle, θ of the normal n vertical with the end face of above-mentioned body part 15～
Diameter Db at 45 ° of scope, and 1/2 height and position of the first ledge 16 is preferably and above-mentioned first electrode plate 6A
（Battery lead plate 14）Centre bore 14A1 internal diameter Dt it is equal.In addition above-mentioned second ledge 17 is projected from the first ledge 16
Height Hh be preferably the thickness Tr of wheel rim 3（Shown in Fig. 2）Less than 0.5 times.
In this example, due to using common battery lead plate 14 as first, second battery lead plate 6A, 6B, therefore above-mentioned first
The ledge 18 of ledge 16 and the 3rd is formed as section same shape.
In addition in above-mentioned packing ring 12A, the diameter Dc of above-mentioned second ledge 17 substantially with the diameter of above-mentioned valve opening 5
D5 is consistent.In addition the internal diameter Dd of the centre bore of packing ring 12A is substantially consistent with the diameter D10 of above-mentioned bar main body 10A.Other
First, the thickness TH between the end face of the 3rd ledge 16,18 is preferably in 2.5～3.5mm on the basis of JATMA equal-specifications
Scope.
Packing ring 12B and above-mentioned packing ring 12A in addition on the outside of above-mentioned tyre cavity is same, has：Body part 15, first is projected
The ledge 17 of part 16 and second, also has in this example the 3rd ledge 18.
Above-mentioned body part 15 is installed between the first electrode plate 7A on the outside of tyre cavity and second electrode plate 7B.Thus go up
State to become between first electrode plate 7A and second electrode plate 7B and be not turned on.Above-mentioned first ledge 16 is from body part 15 towards wheel
Tire inner chamber inner concentric ground is prominent, and between being installed between the centre bore 14A1 of above-mentioned first electrode plate 7A and bar main body 10A
Gap.Thus become between above-mentioned first electrode plate 7A and bar main body 10A and be not turned on.Above-mentioned second ledge 17 is from above-mentioned first
Ledge 16 is projected with one heart, and the gap being installed between above-mentioned valve opening 5 and bar main body 10A.Thus by valve opening 5 and bar
Seal between main body 10A and become and be not turned on.Above-mentioned 3rd ledge 18 is same towards tyre cavity outside from body part 15
Heart is projected, and the gap being installed between the centre bore 14A1 of above-mentioned second electrode plate 7B and bar main body 10A.Thus centre bore
Sealed between 14A1 and bar main body 10A and become and be not turned on.
In this example, due to as above-mentioned first, second battery lead plate 6A, 6B therefore above-mentioned using common battery lead plate 14
Packing ring 12A, 12B also use common packing ring.
In addition in above-mentioned packing ring 12A, 12B, if the thickness between the end face of the above-mentioned first, the 3rd ledge 16,18
TH is too small, then the compress variation of packing ring reduces the tendency reduced so as to air-tightness when there is fixed valve cell 1.If contrary thickness
TH is excessive, then because the height prominent to tyre cavity inner side of valve cell 1 increases, therefore wheel rim assembleability is reduced, so as to pull down
Cause the danger for damaging valve during wheel rim.According to such viewpoint, above-mentioned thickness TH is preferably in the scope of 2.5～3.5mm.
If the height Hh that in addition above-mentioned second ledge 17 is projected from the first ledge 16 is more than the thickness Tr of wheel rim
0.5 times, then weaken crimp forces of first electrode plate 6A, the 7A to wheel rim 3, exist electric conductivity reduction tendency.Additionally while only
Projecting height Hh is wanted just to play sealing effectiveness, but preferably more than 0.2mm, more preferably more than 0.5mm more than 0mm, it is optimum
Elect more than 1.0mm as.
If in addition above-mentioned first ledge 16 is less than above-mentioned first electrode plate 6A, 7A from the height Hb that body part 15 is projected
0.8 times of thickness T, then cause the tendency of bubble-tight reduction.If contrary more than 1.0 times, first electrode plate 6A, 7A are to wheel
The crimp force of rim 3 weakens, so as to the tendency that there is electric conductivity reduction.
If more than 45 °, above-mentioned first electrode plate 6A, 7A's determines the angle, θ of the outer peripheral face of above-mentioned first ledge 16
The precision at center is reduced, and the installation for producing first electrode plate 6A, 7A is not measured so as to there is the tendency for causing air-tightness to reduce.
In addition for the 3rd ledge 18 similarly, the 3rd ledge 18 is preferred from the height Hb that body part 15 is projected
For 0.8～1.0 times of the thickness T of above-mentioned second electrode plate 6B, 7B, in addition the angle, θ of the outer peripheral face of the 3rd ledge 18 is excellent
Choosing is in 0～45 ° of scope.
In addition valve element 20 same, and the screw-tightened of valve gap 40 are installed in the centre bore of valve rod 10 in valve
The outer end of bar 10.
Next, Fig. 6 represents the second embodiment of valve cell 1.The valve cell 1 of second embodiment is interior fastening type folder
Tight valve, with the forming position and valve nut that the distinctive points of first embodiment are the flange part 10B for changing valve rod 10
11 installation site.
Specifically, in this second embodiment, valve rod 10 is in the centre position of bar main body 10A and outside tyre cavity
Side has flange part 10B.In addition valve nut 11 is in the position leaned on the inside of tyre cavity than wheel rim 3（It is in this example inner end
Position）Screw-tightened is in bar main body 10A.
Therefore, the electrode pair 6 on the inside of tyre cavity is configured between valve nut 11 and wheel rim 3, and tyre cavity outside
Electrode pair 7 be configured between flange part 10B and wheel rim 3.Be additionally formed the first electrode plate 6A of above-mentioned electrode pair 6, by with
Wheel rim 3 is contacted and turned on the wheel rim 3, and in addition second electrode plate 6B passes through directly or contacts with valve nut 11 via pad 13
（It is in this example to contact via pad 13）, thus turn on above-mentioned valve rod 10.It is additionally formed the first electrode of above-mentioned electrode pair 7
Plate 7A, is turned on by contacting with wheel rim 3 with the wheel rim 3, in addition second electrode plate 7B by contact with flange part 10B and with it is upper
State valve rod 10 to turn on.
In addition the packing ring 12A on the inside of tyre cavity has：Be configured in above-mentioned first electrode plate 6A and second electrode plate 6B it
Between body part 15, first ledge 16 prominent from the body part 15 towards tyre cavity outer concentric and from this
The second prominent with one heart ledge 17 of first ledge 16.Above-mentioned body part 15 makes above-mentioned first electrode plate 6A and second
Become between battery lead plate 6B and be not turned on.Above-mentioned first ledge 16 by be installed in the centre bore 14A1 of first electrode plate 6A with
Gap between bar main body 10A, thus makes to become between above-mentioned first electrode plate 6A and bar main body 10A and is not turned on.It is above-mentioned in addition
Second ledge 17 by the gap that is installed between valve opening 5 and bar main body 10A, thus by between valve opening 5 and bar main body 10A
Seal and become and be not turned on.In addition the packing ring 12A of this example has the 3rd ledge 18, and the 3rd ledge 18 is from above-mentioned
Body part 15 towards tyre cavity inner concentric it is prominent, and be installed in the centre bore 14A1 of above-mentioned second electrode plate 6B and bar master
Gap between body 10A.
In addition the packing ring 12B on the outside of above-mentioned tyre cavity has：It is configured in above-mentioned first electrode plate 7A and second electrode plate
Body part 15 between 7B, first ledge 16 prominent from the body part 15 towards tyre cavity inner concentric and
From the second ledge 17 that first ledge 16 is prominent with one heart.Above-mentioned body part 15 make above-mentioned first electrode plate 6A with
Become between second electrode plate 6B and be not turned on.Above-mentioned first ledge 16 is by being installed in the centre bore of first electrode plate 6A
Gap between 14A1 and bar main body 10A, thus makes to become between above-mentioned first electrode plate 6A and bar main body 10A and is not turned on.
In addition above-mentioned second ledge 17 is by the gap that is installed between valve opening 5 and bar main body 10A, thus by valve opening
Seal between 5 and bar main body 10A and become and be not turned on.In addition the packing ring 12B of this example has the 3rd ledge 18, and the 3rd
Ledge 18 from above-mentioned body part 15 towards tyre cavity outer concentric it is prominent, and be installed in above-mentioned second electrode plate 7B's
In gap between centre bore 14A1 and bar main body 10A.
Above-mentioned first electrode plate 6A, 7A, each portion of second electrode plate 6B, 7B and packing ring 12A, 12B are dimensioned so as to
It is same with the situation of first embodiment.
More than, the particularly preferred embodiment of the present invention is had been described in detail, but the present invention is not limited to the reality of diagram
Apply mode, but various modes can be deformed into implementing.
Embodiment
In order to confirm the effect of the present invention, the valve list of the first embodiment that Fig. 2 is represented is manufactured experimently based on the specification of table 1
Unit, and the electric conductivity to each confession trial product, air-tightness, wheel rim assembleability tested and mutually compared.
Respectively use the form " JS102 " of JATMA specifications for the valve rod of trial product.Valve nut uses the form of JATMA specifications
“BN1”.Pad has used the form " R12 " of JATMA specifications.The thickness Tr of wheel rim 3 is 3.0mm, and the diameter D5 of valve opening 5 is
11.5mm.The diameter of packing ring and the diameter of battery lead plate are 16mm.
（1）Electric conductivity：
The piezoelectric element 30 that Murata Manufacturing Co. Ltd. is manufactured（Production number：7BB-20-6）The two poles of the earth and tyre cavity on the inside of the
First, second electrode plate 6A, 6B connection, as shown in fig. 7, when making above-mentioned piezoelectric element 30 deform under the following conditions, in tire
Zero is expressed as when measuring the voltage of more than 20V between first, second battery lead plate 7A, 7B on the outside of inner chamber, it is by more than 10V and little
Be expressed as Δ in the situation of 20V, by less than 10V situation be expressed as ×.Δ is qualified grade, × it is underproof grade.
Deformation condition, by piezoelectric element 30 rubber pedestal 31 is placed in（Rubber hardness：Durometer A hardness 50）, using front
Hold the pressing piece 32 of the rubber system frustum of a cone of a diameter of 10mm（Rubber hardness：Durometer A hardness 50）Pressed with 80mm/ point of speed
The central part of pressure piezoelectric element 30, the central portion for making piezoelectric element deforms 1mm.
（2）Air-tightness：
Air was whether there is from valve week when by visual observation to confirm tire is carried out into wheel rim assembling and the internal pressure of 300kPa is filled with
Side leaks.Evaluation is to smear suds to valve periphery, and the situation for not producing bubble is expressed as into zero, there will be and produces inclining for bubble
To situation be expressed as Δ, the situation for substantially producing bubble is expressed as ×.Δ is qualified grade, × it is underproof grade.
（3）Wheel rim assembleability：
When pulling down wheel rim, due to releasing chimerism, so making tire bead fall the central slot of wheel rim（drop
center）（Recess）When, will successfully fall and tire bead is expressed as zero without the situation of scar, though will there is card hangs tendency
But tire bead is expressed as Δ without the situation of scar, by card hang and tire bead with scar situation be expressed as ×.Δ is
Qualified grade, × it is underproof grade.
Table 1
It is as shown in the table is able to confirm that, the valve cell of embodiment is able to ensure that the air-tightness in tyre cavity, and can make
Conduct with outside in tyre cavity.
Claims (12)
1. a kind of valve cell,
At least include：
Valve rod, the valve rod have through wheel rim valve opening and to inside and outside tyre cavity extend tubular bar main body and be arranged on
Inner flange part on the inside of the tyre cavity of the bar main body；
Valve nut, the valve nut than above-mentioned wheel rim by the position screw-tightened on the outside of tyre cavity in above-mentioned bar main body, and
Clamp wheel rim between the valve nut and above-mentioned flange part to be fixed；And
Packing ring, inserts in above-mentioned bar main body outside the packing ring, and will seal between the bar main body and wheel rim,
The valve cell is characterised by having：
Electrode pair on the inside of tyre cavity, the electrode pair on the inside of the tyre cavity includes：It is outer between above-mentioned flange part and wheel rim
Insert in above-mentioned bar main body, and the first electrode plate turned on the wheel rim by contacting with above-mentioned wheel rim；With by with it is above-mentioned
The second electrode plate that flange part is contacted and turned on above-mentioned valve rod；And
Electrode pair on the outside of tyre cavity, the electrode pair on the outside of the tyre cavity includes：It is outer between above-mentioned valve nut and wheel rim
Insert in above-mentioned bar main body, and the first electrode plate turned on the wheel rim by contacting with above-mentioned wheel rim；By direct or Jing
The second electrode plate for being contacted with above-mentioned valve nut by pad and being turned on above-mentioned valve rod, and
Above-mentioned packing ring includes the packing ring and the packing ring on the outside of tyre cavity on the inside of the tyre cavity that formed by non-conductive rubber, and
And
Packing ring on the inside of above-mentioned tyre cavity has：
Body part, the body part is installed between the first electrode plate on the inside of above-mentioned tyre cavity and second electrode plate, by this
It is set to be not turned between one battery lead plate and second electrode plate；
First ledge, first ledge from above-mentioned body part towards tyre cavity outer concentric it is prominent, and lead to
The clearance portion being installed between the centre bore of above-mentioned first electrode plate and bar main body is crossed, thus by above-mentioned first electrode plate and valve
It is set to be not turned between bar；And
Second ledge, second ledge is projected with one heart from above-mentioned first ledge, and by being installed in
Clearance portion between above-mentioned valve opening and bar main body, thus will seal between the valve opening and bar main body and is set to be not turned on, and
Packing ring on the outside of above-mentioned tyre cavity has：
Body part, the body part is installed between the first electrode plate on the outside of above-mentioned tyre cavity and second electrode plate, by this
It is set to be not turned between one battery lead plate and second electrode plate；
First ledge, first ledge from the body part towards tyre cavity inner concentric it is prominent, and pass through
The clearance portion being installed between the centre bore of above-mentioned first electrode plate and bar main body, thus by above-mentioned first electrode plate and valve rod
Between be set to be not turned on；And
Second ledge, second ledge is projected with one heart from above-mentioned first ledge, and by being installed in
Clearance portion between above-mentioned valve opening and bar main body, thus will seal between the valve opening and bar main body and is set to be not turned on.
2. valve cell according to claim 1, it is characterised in that
Packing ring on the inside of above-mentioned tyre cavity has the 3rd ledge, and the 3rd ledge is from above-mentioned body part towards tire
Inner chamber inner concentric ground is prominent, and the clearance portion being configured between the centre bore of above-mentioned second electrode plate and bar main body, and
Packing ring on the outside of above-mentioned tyre cavity has the 3rd ledge, and the 3rd ledge is from above-mentioned body part towards tire
Inner chamber outer concentric ground is prominent, and the clearance portion being configured between the centre bore of above-mentioned second electrode plate and bar main body.
3. valve cell according to claim 1 and 2, it is characterised in that
The first electrode plate on the outside of first electrode plate, second electrode plate and tyre cavity on the inside of above-mentioned tyre cavity, second
Battery lead plate, using the battery lead plate of same shape, and
The packing ring on the outside of packing ring and tyre cavity on the inside of above-mentioned tyre cavity, using the packing ring of same shape.
4. valve cell according to claim 1 and 2, it is characterised in that
In a pre-assembly condition, above-mentioned first ledge is from the thickness that the height Hb that body part is projected is above-mentioned first electrode plate
0.8～1.0 times of degree T.
5. valve cell according to claim 1 and 2, it is characterised in that
In a pre-assembly condition, the outer peripheral face of above-mentioned first ledge is relative to the method vertical with the end face of above-mentioned body part
The angle, θ of line is the diameter Db and above-mentioned first electrode at 0～45 ° of scope, and 1/2 height and position of the first ledge
The internal diameter Dt of the centre bore of plate is equal.
6. valve cell according to claim 1 and 2, it is characterised in that
In a pre-assembly condition, the height Hh that above-mentioned second ledge is projected from the first ledge for wheel rim thickness Tr
Less than 0.5 times.
7. a kind of valve cell,
At least include：
Valve rod, the valve rod has：Through wheel rim valve opening and to inside and outside tyre cavity extend tubular bar main body and be arranged on
The centre position of the bar main body and the flange part on the outside of tyre cavity；
Valve nut, the valve nut than above-mentioned wheel rim by the position screw-tightened on the inside of tyre cavity in above-mentioned bar main body, and
Clamp wheel rim between the valve nut and above-mentioned flange part to be fixed；And
Packing ring, inserts in above-mentioned bar main body outside the packing ring, and will seal between the bar main body and wheel rim,
The valve cell is characterised by having：
Electrode pair on the inside of tyre cavity, the electrode pair on the inside of the tyre cavity includes：It is outer between above-mentioned valve nut and wheel rim
Insert in above-mentioned bar main body, and the first electrode plate turned on wheel rim by contacting with above-mentioned wheel rim；With by directly or Jing
The second electrode plate for being contacted with above-mentioned valve nut by pad and being turned on above-mentioned valve rod；And
Electrode pair on the outside of tyre cavity, the electrode pair on the outside of the tyre cavity includes：It is outer between above-mentioned flange part and wheel rim
Insert in above-mentioned bar main body, and the first electrode plate turned on the wheel rim by contacting with above-mentioned wheel rim；With by with it is above-mentioned
The second electrode plate that flange part is contacted and turned on above-mentioned valve rod, and
Above-mentioned packing ring includes the packing ring and the packing ring on the outside of tyre cavity on the inside of the tyre cavity that formed by non-conductive rubber, and
And
Packing ring on the inside of above-mentioned tyre cavity has：
Body part, the body part is installed between the first electrode plate on the inside of above-mentioned tyre cavity and second electrode plate, by this
It is set to be not turned between one battery lead plate and second electrode plate；
First ledge, first ledge from above-mentioned body part towards tyre cavity outer concentric it is prominent, and lead to
The clearance portion being installed between the centre bore of above-mentioned first electrode plate and bar main body is crossed, thus by above-mentioned first electrode plate and valve
It is set to be not turned between bar；And
Second ledge, second ledge is projected with one heart from above-mentioned first ledge, and by being installed in
Clearance portion between above-mentioned valve opening and bar main body, thus will seal between the valve opening and bar main body and is set to be not turned on, and
Packing ring on the outside of above-mentioned tyre cavity has：
Body part, the body part is installed between the first electrode plate on the outside of above-mentioned tyre cavity and second electrode plate, by this
It is set to be not turned between one battery lead plate and second electrode plate；
First ledge, first ledge from the body part towards tyre cavity inner concentric it is prominent, and pass through
The clearance portion being installed between the centre bore of above-mentioned first electrode plate and bar main body, thus by above-mentioned first electrode plate and valve rod
Between be set to be not turned on；And
Second ledge, second ledge is projected with one heart from above-mentioned first ledge, and by being installed in
Clearance portion between above-mentioned valve opening and bar main body, thus will seal between the valve opening and bar main body and is set to be not turned on.
8. valve cell according to claim 7, it is characterised in that
Packing ring on the inside of above-mentioned tyre cavity has the 3rd ledge, and the 3rd ledge is from above-mentioned body part towards tire
Inner chamber inner concentric ground is prominent, and the clearance portion being installed between the centre bore of above-mentioned second electrode plate and bar main body, and
Packing ring on the outside of above-mentioned tyre cavity has the 3rd ledge, and the 3rd ledge is from above-mentioned body part towards tire
Inner chamber outer concentric ground is prominent, and the clearance portion being configured between the centre bore of above-mentioned second electrode plate and bar main body.
9. the valve cell according to claim 7 or 8, it is characterised in that
The first electrode plate on the outside of first electrode plate, second electrode plate and tyre cavity on the inside of above-mentioned tyre cavity, second
Battery lead plate, using the battery lead plate of same shape, and
The packing ring on the outside of packing ring and tyre cavity on the inside of above-mentioned tyre cavity, using the packing ring of same shape.
10. the valve cell according to claim 7 or 8, it is characterised in that
In a pre-assembly condition, above-mentioned first ledge is from the thickness that the height Hb that body part is projected is above-mentioned first electrode plate
0.8～1.0 times of degree T.
11. valve cells according to claim 7 or 8, it is characterised in that
In a pre-assembly condition, the outer peripheral face of above-mentioned first ledge is relative to the method vertical with the end face of above-mentioned body part
The angle, θ of line is the diameter Db and above-mentioned first electrode at 0～45 ° of scope, and 1/2 height and position of the first ledge
The internal diameter Dt of the centre bore of plate is equal.
12. valve cells according to claim 7 or 8, it is characterised in that
In a pre-assembly condition, the height Hh that above-mentioned second ledge is projected from the first ledge for wheel rim thickness Tr
Less than 0.5 times.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012285673A JP5658734B2 (en) | 2012-12-27 | 2012-12-27 | Valve unit |
| JP2012-285673 | 2012-12-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103895458A CN103895458A (en) | 2014-07-02 |
| CN103895458B true CN103895458B (en) | 2017-04-12 |
Family
ID=50987170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310662474.8A Active CN103895458B (en) | 2012-12-27 | 2013-12-09 | Valve unit |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5658734B2 (en) |
| CN (1) | CN103895458B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7329482B2 (en) * | 2020-08-11 | 2023-08-18 | 太平洋工業株式会社 | valve stems and tire valves |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01156109A (en) * | 1987-12-15 | 1989-06-19 | Bridgestone Corp | Tire valve |
| US4951501A (en) * | 1989-10-16 | 1990-08-28 | Schrader Automotive Inc. | Tire valve having dual electric conducting paths |
| CN1048523A (en) * | 1990-05-23 | 1991-01-16 | 周宗扬 | Abnormal tyre pressure alarm device and electric switch |
| WO2004045875A1 (en) * | 2002-11-18 | 2004-06-03 | Mangafas, Nicholas | Improvements in tyre data monitoring systems |
| JP2008143297A (en) * | 2006-12-08 | 2008-06-26 | Toyota Motor Corp | Air leakage risk determination system |
| CN102666145A (en) * | 2009-08-04 | 2012-09-12 | 埃尔特克有限公司 | Device for monitoring a vehicle wheel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6416902U (en) * | 1987-07-16 | 1989-01-27 | ||
| JPH0662046B2 (en) * | 1990-07-26 | 1994-08-17 | シュレーダ オートムーティブ インコーポレーテッド | Tire valve having a pair of electric circuits |
-
2012
- 2012-12-27 JP JP2012285673A patent/JP5658734B2/en active Active
-
2013
- 2013-12-09 CN CN201310662474.8A patent/CN103895458B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01156109A (en) * | 1987-12-15 | 1989-06-19 | Bridgestone Corp | Tire valve |
| US4951501A (en) * | 1989-10-16 | 1990-08-28 | Schrader Automotive Inc. | Tire valve having dual electric conducting paths |
| CN1048523A (en) * | 1990-05-23 | 1991-01-16 | 周宗扬 | Abnormal tyre pressure alarm device and electric switch |
| WO2004045875A1 (en) * | 2002-11-18 | 2004-06-03 | Mangafas, Nicholas | Improvements in tyre data monitoring systems |
| JP2008143297A (en) * | 2006-12-08 | 2008-06-26 | Toyota Motor Corp | Air leakage risk determination system |
| CN102666145A (en) * | 2009-08-04 | 2012-09-12 | 埃尔特克有限公司 | Device for monitoring a vehicle wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5658734B2 (en) | 2015-01-28 |
| JP2014125189A (en) | 2014-07-07 |
| CN103895458A (en) | 2014-07-02 |
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