Patent application of the present invention be that February 14, application number in 2008 are 200810005653.3 the applying date, denomination of invention divides an application for the application for a patent for invention of " be used for the cover plate of body measuring apparatus and from the moving plate distributor ".
The specific embodiment
" body composition measurement device " is interpreted as a kind of measurement device, this equipment by the impedance between two parts of health and for example the physical qualification of height, body weight calculate the information of body composition and structure (for example fat mass).
" thickness direction " is interpreted as the direction from the cover plate surface to the apparent surface, and " in-plane " is interpreted as parallel with the surface or parallel direction almost.
The literal upper expression that is expressed in that " has electric conductivity " has conduction property.Ideal situation is zero resistance, but might have the resistance of specific size.In any case people wish that resistance is uniform in whole conductive region part.
The statement that " has at least part of anti-skidding processing " is interpreted as this anti-skidding processing can not affect measurement result in the body composition measurement device that uses body impedance to measure.
The measured value that is obtained by the body composition measurement device can use calibration chart or curve to proofread and correct.
" conductive solids " is interpreted as being in use the conductive particle of solid or powder, for example metal dust of aluminium powder, iron powder, argentum powder and bronze or metal salt powder, the perhaps inorganic powder of carbon dust, metallic fiber or carbon fiber for example.Can also use CNT.Generally speaking, conductive solids adds on the sheet material of for example nonwoven web, fleece and felt at the cover plate preparatory phase, perhaps conductive solids during the fiber preparatory phase kneading in fiber, perhaps conductive solids dispensing, permeate or spread on the cover plate surface or in the cover plate to produce the electric conductivity of through-thickness.
" conducting liquid " is interpreted as being in use liquid conducting liquid, is generally aqueous solution.Conducting liquid can be tap water (usually containing chloride).Can add the suitable material that can increase electric conductivity and/or produce homogeneous conductivity in the water, for example for generation of the reagent of conductive ion, described conductive ion is water-soluble salt for example, such as sodium chloride.Aqueous solution can contain can avoid or delay dry reagent, for example wetting agent, wetting agent and for example anti-dried agent of propylene amide, polyethylene acetyl amide, polyglycols ester.Aqueous solution can contain other additive, for example antibacterial, disinfectant, antibacterial, deodorizer, antioxidant, humectant metaphosphate, have the additive such as the multiple effect of relaxation effect, preservation, antiinflammatory and pain relieving character, have such as mildew-resistant, anti-allergy, moisturizing, improve making for good health and beautiful being permitted multifunctional catechin of environment and aroma-therapeutic effect, and such as the additive of antiseptic pottery and Borax, photocatalyst, antioxidant, fire retardant etc. such as titanium oxide.
The statement that " has non-slip feature " is interpreted as following this situation, even when the old people of risk of injury maximum uses body measuring apparatus or body weigher, cover plate can not slide at body measuring apparatus or body weigher yet.
For intensity, insulation, health, safety and cost consideration, preferably made by nonwoven web or yarn fabric according to cover plate of the present invention.Nonwoven web is well-known material, and selling on the market has various types of nonwoven webs.Can make and in all sorts of ways and various manufacture of materials nonwoven webs.These materials can be the natural fibers of cotton fiber, hemp or bamboo wood for example, the animal fiber of cotton Pilus Caprae seu Ovis, silkworm silk for example, for example staple fibre, CUP, acetate, amide, polyester, polyacrylonitrile fibre, polyvinyl alcohol, polyolefinic chemical fibre, and the inorfil of glass fibre, metallic fiber and carbon fiber for example, wherein said polyolefin for example is polyethylene, polypropylene, polyvinylidene chloride and polyurethane.The method of producing nonwoven web is not particularly limited yet; people can use any known technology, for example adhesive method, thermal method, ultrasonic bonding method needle-punching method, span weave (span lace method), sewing method, span combined techniques, melt-blown method, centrifugal force method, hurried spinning process, voltage dry-spinning method, film covering method, air bells laid method, guard method and T-shaped machine (garneting machine) method.
Because production cost is the most important, so cover plate according to the present invention is preferably disposable.Therefore, for patch material according to the present invention, preferably select for example commodity of the mixture of polyolefin, Cotton Gossypii and polyolefin and Cotton Gossypii or paper.Especially, preferred material is for having high strength, polyester/paper pulp manufacture-illegal woven webs cheaply, and it advantageously uses in medical apparatus and instruments and disposable mask, surgical drage and operation dress.
In cover plate according to the present invention, divide corresponding conductive region part must have electric conductivity with body composition measurement device electrode part.This conductive region part can (1) be directly made by conductive material or (2) are carried out so-called conductive processing by the electrically non-conductive material to for example nonwoven web or plastic material and obtained.Described conductive processing is suitable for batch production.
In the situation (1) that the conductive region part is directly made by conductive material, can make opening by position corresponding with electrode on non-conductive sheet material according to cover plate of the present invention, conducting strip is placed on the opening, the periphery of conducting strip or edge is utilized to make on binding agent or the interior week by being welded to connect or being fixed to opening or the edge subsequently to form.Conducting strip can be made by various conductive materials.Generally speaking, nonwoven web can become or conducts electricity instead by two kinds of methods.In first method, the conductive material kneading is in nonwoven web materials (mixing with it), and synthetic mixture is twisted filament or fiber with rotation mode, so that conducting strip is prepared from by final conductive filament or fiber.In the second approach, commercially available nonwoven web is carried out so-called conductive processing to make conducting strip.Conducting strip can have any shape, and is for example knitting, fabric, nonwoven web and sheet material.For example, conducting strip can be made by the fiber that is doped with conductive material yarn fabric processed and non-woven fabric or sheet material.If cost allows, can use the sheet material made by the synthetic resin of for example polyamide, polyurethane or the acetate that wherein are scattered with carbon or fabric as conducting strip.The non-conductive sheet material that is used to form non-conductive zone part can be made by any insulant of for example polyethylene and polyester/paper mixture.
Become by conductive processing or change in the situation (2) of conductive region part at electrically non-conductive material, people can use well-known conductive processing method.The insulating regions part can be covered during conductive processing.The various conductive materials that use in conductive processing also are well-known, and usually use for example metal dust or the metal salt powder of aluminium powder, iron powder, argentum powder and bronze, perhaps the inorganic powder of carbon dust or carbon fiber for example.Preferably, use relatively cheap and be suitable for mass-produced conductiving doping agent, for example carbon black.In conductive processing, the solution that wherein is scattered with conductive material can be applied on the nonwoven web by printed film (pattern sheet), and described printed film has the through hole corresponding with electrode.Can use can the Uniform Dispersion conductive material and improve the wettable chemical compound of nonwoven web, for example contains the solvent (that is, water, ethanol or ester) of surfactant and Sal.
Conductive region part and/or insulating regions part can be made by laminated material.For example, the upper surface of insulating regions part can be made by low-density polyethylene film, and lower surface can be made by rubber or elastomer manufacture-illegal woven webs.Although for the viewpoint of the electric conductivity that improves through-thickness, conductive region is partly made layer structure does not have for what benefit, the conductive region part still can be made by the multilayer chip layer.For example, the upper surface of conductive region part can be made by polyamide net (mesh), and lower surface can be made by electrically conductive polyamide manufacture-illegal woven webs.Can also use various lamination combinations, for example antibacterial nonwoven net/not thoroughly combination of the nonwoven web of antibacterial, the perhaps combination of yarn fabric/nonwoven web.
Can contain other additive according to cover plate of the present invention, for example antibacterial, antibacterial, deodorizer, antioxidant, humectant metaphosphate, relaxant, antistaling agent, antiinflammatory, analgesic or make for good health and beautiful and have mildew resistance, anti-allergy, add moist and improve the additive of environmental activity, for example catechin, sterilization pottery and Borax, or for example optical catalysts, antioxidant and the fire retardant of titanium dioxide.
Preferably, has anti-skidding character according to the upper surface of cover plate of the present invention and/or at least a portion of lower surface.Especially, for security consideration, do not wish between cover plate and the workbench slippage to occur.When cover plate itself according to the present invention had skid resistance, it can be used safely in the situation of anti-skidding processing need not workbench is carried out.Can on workbench, carry out equably anti-skidding processing by for example applying at least in part the urethanes film, and in this case, the cover plate that has skid resistance according to the present invention can use saferly.Skid resistance can also be provided by the character of material itself.In fact, for example the material of polyurethane can be made anti-skidding cover plate.By polyethylene, polyester or have in the situation that cellulosic mixture makes, preferably, at least a portion, preferably carry out anti-skidding processing on the whole surface of sheet material at nonwoven web.Can carry out this anti-skidding processing by various well-known methods, for example, with hope pattern coated natural or tartan, elastomer, silicone rubber or the binding agent such as dot pattern and line graph.Can carry out anti-skidding processing on the whole surface of sheet material, as long as this processing does not affect measurement.
When cover plate was kept by the feed unit in the automatic allocation device and collector unit, anti-skidding processing can omit or weaken, wherein cover plate in described automatic allocation device by the stock roll continuous feed.
Preferably, operator, user or experimenter indicate or mark the conductive region part at cover plate according to the present invention, so that can easily determine or confirm the position of conductive region part immediately and they are correctly aimed at the electrode part of measurement device.For this reason, preferably partly locate to print sash (window) at conductive region.Equally preferably labelling is used for the point of location, for example indicates centre mark and the lines of installation site.For example, double-legged labelling can be printed on according on the cover plate of the present invention with the location of convenient both feet.
Now, with reference to the practical application of accompanying drawing explanation according to cover plate of the present invention.
Fig. 1 is the schematic plan view according to cover plate 1 of the present invention, and Fig. 2 is the schematic cross sectional views of cutting open along Fig. 1 cathetus A-A and straight line B-B.Cover plate 1 comprises the insulating regions part 3 of dividing corresponding conductive region part 2 and adjacent conductive area part 2 is separated with the electrode part of body composition measurement device.Conductive region part 2 must through-thickness (top-down direction in Fig. 2) conduction.Insulating regions part 3 must have insulating properties along in-plane (along the plane of Fig. 1) at least.Rubber antiskid is selected 4 and is formed on the lower surface of cover plate 1.
Fig. 3 has shown the embodiment that how to use cover plate 1 on the body composition measurement device of using the impedance method.The body composition measurement device 10 of Fig. 3 A is multifrequency type body composition measurement devices, is used for measuring moisture content and body weight in body fat percentage, flesh piece (muscle mass), the body.In use, the experimenter stands on the workbench 11 and holds hand-held device 15 to show aforesaid various data.It is four parts in the figure that workbench 11 has electrode part 12() and insulated part 13 that adjacent electrode part 12 is separated.
Can be used for preventing carrying out cross infection by workbench 11 and/or hand-held device 15 according to cover plate 1 shown in the 3B among Fig. 3 of the present invention.The anti-skidding processing of carrying out at the lower surface of cover plate 1 makes and stands in the danger that the people on the cover plate 1 avoids slipping.
Fig. 4 has shown the embodiment according to cover plate 1 of the present invention that uses in family type or household type body composition measurement device.Those reference numbers that use among 3A and the 3B among the reference number that uses among 4A and the 4B among Fig. 4 and Fig. 3 are identical.In the 4A of Fig. 4, plane securing member 14 is fixed to appropriate position on the body composition measurement device by double faced adhesive tape.In use, the cover plate 1 of being made by nonwoven web is pressed on the plane securing member 14, so that cover plate 1 fixedly secures.In family type body composition measurement device, the kinsfolk can reuse same cover plate and need not to change, until cover plate is dirty, therefore in most of the cases, is expended by the manpower of the replacing cover plate that uses plane securing member 14 to cause and to become unimportant.
Fig. 5 has shown the distortion according to cover plate 1 of the present invention.In the 5A of Fig. 5, insulating regions part 3 is laminar structure.For example, upper insulating regions part 31 can be made by the low density polyethylene sheet material, and lower insulating regions part 32 can be made by the urethanes sheet material.In the situation of considering cost, intensity, machinability and other factor, insulating regions part 31,32 material can be selected from various plastic materials, paper and elastomer up and down.They can have the structure of any hope, for example nonwoven web, yarn fabric, sheet material and thin film.Conductive region part 2 equally can by be similar to insulating regions part 31,32 various materials are made, as long as conductive region satisfies the requirement that their through-thickness have electric conductivity.
The 5B of Fig. 5 illustrate simplifying of cover plate 1 many distortion, this cover plate does not have the lower insulating regions part 32 that shows among the 5A of Fig. 5.The periphery of conductive region part 2 is utilized binding agent or is fixed by welding on the insulating regions part 31,32.
Fig. 6 is the sketch map of another distortion of nonwoven web cover plate processed, and this cover plate uses in family type shown in Figure 4 or household type body composition measurement device.In order to make view clear, amplify the ratio of thickness direction.6A among Fig. 6 is perspective schematic view, and the 6B among Fig. 6 is the schematic cross sectional views that the straight line C-C along 6A among Fig. 6 cuts open.In this embodiment, conductive region part 2 is conducted electricity or is carried out conductive processing by the appropriate section that makes nonwoven web and is prepared from.In this cover plate 1, form window 5 in the position corresponding with the instrument in the family type body composition measurement device shown in Figure 4, in order to read easily measurement data.Window 5 can be covered by clear sheet.Can marking 6 to indicate double-legged standing place.This labelling can indicate left and right, upper and lower towards.Perhaps, can print the footnote note, so that cover plate 1 is not placed on wrong position and/or direction.
Fig. 7 illustrates the hand-held device cover 40 that uses in body composition measurement device 10 shown in Figure 3.Fig. 7 A is rear view, and Fig. 7 B is the front view of hand-held device 15.Hand-held device 15 has two electrodes 16,17 that separated or isolated by insulated part 18.This hand-held device 15 is connected on the body composition measurement device 10 by wire 19.In use, the experimenter who stand on the workbench 11 holds hand-held device 15, and electrode 16,17 plays the effect of the torch utmost point.
The 7C of Fig. 7 illustrates the hand-held device cover 40 that is enclosed within on the hand-held device 15.This hand-held device cover 40 can be inserted on the hand-held device 15 from the free end relative with wire 19. Conductive region part 41,42 is formed on position corresponding with each electrode on the hand-held device cover 40.In the drawings, the cross section of hand-held device 15 is square, so that when hand-held device cover 40 only is inserted on the hand-held device 15, because hand-held device cover 40 has the 3D shape corresponding with the shape of hand-held device 15 so that conductive region part 41,42 can be positioned at electrode 16,17 corresponding trams on.
In another distortion (not shown), the hand-held device cover can be simple and easy sheet material as shown in Figure 4.This sheet material can be fixed on the tram of hand-held device 15 around hand-held device 15 coilings and by plane securing member (not shown).
Can be used as antifouling or ceremony sheet on the simple and easy weight meter with electrode by placing it in according to cover plate of the present invention.
Can use with the form of device cover plate one by one according to cover plate of the present invention, but more conveniently for the user be, cover plate is supplied in material storehouse mode, wherein a plurality of device cover plates are connected in series in discerptible mode, so that user can be extracted each device cover plate as required from the material storehouse.The material storehouse can be many device cover plates connections and the roller roll form of reeling, perhaps can be for being similar to the stack manner of " thin paper " box, and wherein many device cover plates are stacking in the nested mode of part, so that two continuous device cover plates can be extracted out continuously.
In the situation of wet type cover plate, manufacturer provides a kind of like this material storehouse of form, and it comprises a jacking storehouse and should expect the seal-packed container in storehouse, till using so that the user keeps packed state, thereby prevents that the wet type cover plate from becoming dry.Container can be plastic bag or box, and it selectively has for the barrier layer of humidification and has the opening that cover plate is extracted out.
Fig. 8 and 9 illustrates two examples according to apparatus of the present invention, comprises the container in cover plate material storehouse and this cover plate material storehouse of packing.
In Fig. 8, a plurality of device cover plate 1' are alternately stacking in the mode nested with so-called " thin paper " similar part, so that two continuous device cover plates can extract out continuously, and install in a large number cover plate 1' and leave the soft plastic bag 50 that has for the barrier layer of humidification in.Fig. 8 illustrates the front end 11' of device cover plate 1' from being formed at the state of opening 52 extractions on the bag 50.Become dry for fear of the wet type cover plate, can or weld suitable lid (not shown) around opening 52 bondings.
In Fig. 9, a plurality of device cover plate 1' are connected in series in discerptible mode, and reel with the form in roll shape material storehouse 60.This material storehouse 60 is left in the plastic containers 61 of plastic casing for example.Between two continuous device cover plates, form the strapping wires of for example perforation or be easy to defiber and do not show.When material storehouse 60 was arranged in the plastic casing 61, user can rotate lid 64 around articulated elements 63.In order to guide the fuse 65 in roll-type material storehouse 60, the guide groove (not shown) is formed on the inner surface of plastic casing 61.Sealing member can be arranged in exit at plastic casing 61, and the front end in roll-type material storehouse 60 is extracted out by described outlet.
Cover plate of the present invention can automatically be placed or be arranged on the electrode zone of body measuring apparatus by using automatic cover plate distributor.When many experimenters measured in health center, hospital and comprehensive physical examination successively, the cover plate distributor was particularly favourable automatically.Automatically the cover plate distributor can have the cover plate feed unit that is arranged in body measuring apparatus one side and the cover plate collector unit that is arranged in opposite side.
Automatically the cover plate distributor preferably has cover plate feed unit and collector unit.Feed unit is provided with 1 and is used for depositing the box in roll-type or stack material storehouse, and 2 for the device (for example driving device and guiding device) that cover plate is extracted out from stack of sheets.Collector unit is provided with 3 and is used for being used for for the driving device (for example driving device and guiding device) and 4 that the cover plate of self-feed unit is extracted out the disposable boxes of collection cover plate.Preferably, the cover plate distributor has the device for the operation of control or synchro-feed unit and collector unit automatically, is used for the switch of starting cover plate feed motion and the display device of display operation condition.
Automatically the cover plate distributor can have following option means:
(6) sensor of detection electric conductivity, ohm gauge (being usually placed in feed unit one side),
(7) scale device of proper position on the electrode zone that is used for making cover plate be positioned at body measuring apparatus (this scale can be the labelling that is printed on the cover plate by optical detection),
(8) be used for making the device of cover plate on the electrode zone that temporarily anchors to body measuring apparatus in the situation without slippage,
(9) be used for the device (in the situation of wet type cover plate) of moisturizing or humidification.
Can or use with any existing body measuring apparatus combination according to automatic cover plate distributor of the present invention, and need not to improve or be out of shape.
Figure 10 is the perspective schematic view according to the example of automatic cover plate distributor of the present invention.Figure 10 is partial sectional view, and its housing front portion is removed to show the inside of distributor.Figure 11 is the distortion of Figure 10.
Automatic cover plate distributor shown in Figure 10 has cover plate feed unit A and collector unit B.Two unit A, B link to each other the relative position of described connecting plate fixed cell A, B by connecting plate C.In order to make automatic cover plate distributor be easy to be connected on the existing body measuring apparatus, feed unit A, collector unit B and connecting plate C can combine by the simple connecting device (not shown) of for example screw or clip.
The shell of feed unit A comprises container 70 and the container cover 71 for material storehouse 60, and described container cover connects by articulated elements 72.In use, user only need be opened container cover 71, and new roll-type material storehouse 60 is inserted in the containers 70, pulls out the front end of cover plate and cover plate is placed on the workbench 11 of body measuring apparatus 10 from the material storehouse, and the closing containers lid 71 subsequently.Being drawn out of cover plate is clipped between the upper pressure roller 73 and the lower compression roller 74 by container 70 supports that is supported by container cover 71.These pressure rollers 73,74 can be used as the terminal of conductor sensor or ohm gauge.Can also vertically drive pressure roller 73,74 with a kind of mechanism, so that the gap between the pressure roller 73,74 enlarges when cover plate advances, cover plate clamps to prevent cover plate 1 slippage by pressure roller 73,74 during measuring.
Collector unit B has the identical mechanism substantially with feed unit A.In the situation of collector unit B, must arrange to be used for pulling cover plate 1 or to be used for making the driving device (for example, motor) of mandrel rotation and to be used for mandrel is connected to mechanism on the driving device that wherein cover plate 1 is reeled around described mandrel.Preferably, in feed unit A, also arrange another driving device, and make two driving device synchronization actions.
In the shell of feed unit A and/or collector unit B, can arrange various elements or mechanism's (not shown), the guider of mandrel for example, conductor sensor or ohm gauge, feed mechanism, be used for pressure roller 73,74 driving device and be used for controlling the computer (for example, panel) of all motions of automatic cover plate distributor.For clarity, these elements do not show in the accompanying drawings.
Automatic cover plate distributor shown in Figure 10 can be used for wet type and dry type cover plate.Become dry for fear of the wet type cover plate, advantageously container cover 71 is maintained in its closed position.
Figure 11 is the perspective schematic view according to another example of automatic cover plate distributor of the present invention, and this figure is the distortion of Figure 10.In the distributor of Figure 11, conducting liquid (for example water) feed arrangement is installed on the distributor of Figure 10.In Figure 11, for clarity sake, do not show shell shown in Figure 10.For example the conducting liquid 77 of water offers pan 77.Water can be supplied with by the portable water tank (not shown) on the shell that is arranged in feed unit A.Water in the pan 77 can maintain predetermined altitude.
Figure 12 and Figure 13 have further shown the cover plate distributor of another kind of type, and they are simplified by the size that makes distributor shown in Figure 11 and dwindle and are designed to family and use, and wherein said distributor is equipped with conducting liquid (for example water) feed arrangement.Figure 12 and Figure 13 are the schematic cross sectional views of conducting liquid feed arrangement, and identical reference number represents same or analogous parts.
Conducting liquid feed arrangement shown in Figure 12 is designed to only use the feed unit A of Figure 11.Container cover 71 has the handle (not shown), and it is used for the transportation of convenient container lid and the portability that strengthens container cover.In use, user is opened container cover 71, and new roll-type material storehouse 60 is inserted in the container 70, extracts the front end of cover plate 1 out, makes 78 times processes of its deflector roll in being dipped in water, and the closing containers lid 71 subsequently.The cover plate 1 that is drawn out of cuts along perforation, and the cover plate that separates is placed on the workbench 11 of body measuring apparatus, shown in Fig. 3 B and 4B.
In Figure 13, water is not supplied to pan 77, but be supplied to sponge roller for example for damping roller 80,81 to avoid water to spill.Water is supplied at least one sponge roller by water tank 83 by feed controller 82.Arrange the excessive water that tray 84 drips with collection.
This shell has the handle (not shown) equally, and it is used for making things convenient for transportation and the portability thereof of shell.In use, user is opened container cover 71, and new roll-type material storehouse 60 is inserted in the container 70, extracts the front end of cover plate 1 out, makes it in 80 times processes of sponge roller, and the closing containers lid 71 subsequently.In order to change easily the operation in roll-type material storehouse 60, people wish to carry out such design so that the front end of cover plate 1 when container cover 71 is opened from sponge roller 80 below by.In the situation of Figure 13, the cover plate that is drawn out of 1 cuts along perforation, and the cover plate that separates is arranged on the workbench 11 of body measuring apparatus, shown in Fig. 3 B and Fig. 4 B.
Figure 12 and cover plate distributor shown in Figure 13 are particularly suitable for the domestic. applications of wet type cover plate, but also can be used for the dry type cover plate.
Figure 14 is the distortion of cover plate shown in Figure 5, and this cover plate is mainly used in wet type.Cover plate according to the present invention has three-decker.For example, nonwoven web 20 is clipped in by between apparent surface's sheet material 31,32 of making such as the insulant of Low Density Polyethylene.Corresponding with surficial sheets 31,32 conductive region part 2 regional punched forming opening, and nonwoven web 20 exposes at opening part (die-cut zone).Be with the difference of cover plate shown in Figure 5, nonwoven web 20 do not carried out conductive processing.That is, cover plate shown in Figure 14 uses in wet type, and for instance, conducting liquid applies, sprays or adhere on the conductive region part 2 to produce conduction property on usage.In fact, only have the conducting liquid that is sprayed that the electric conductivity of through-thickness is provided.Nonwoven web 20 can be by bonding or be solder-connected on the surficial sheets 31,32 of being made by Low Density Polyethylene.
If necessary, the insulating properties of Low Density Polyethylene control surface sheet material can be by carrying out such processing, and namely conducting liquid does not permeate in the other parts of the conductive region part 2 on the nonwoven web 20 and guaranteed.For example, prevent that the zone of conducting liquid infiltration can be arranged in center line or the location of nonwoven web 20.In fact, water-proof wire applies or is welded on the described nonwoven web along the longitudinal centre line of nonwoven web 20, and perhaps the material of nonwoven web 20 is substituted by waterproof or waterproof material along its longitudinal centre line or zone.Similarly, can prevent that conducting liquid from seeing through the similar processing of cover plate 1 along horizontal direction (in Figure 14 from bottom to top direction).
Even containing a small amount of conducting liquid, surficial sheets 31,32 can not cause serious problem yet.In fact, between the electrode along the distance of in-plane greater than thickness so that surficial sheets 31,32 higher along the resistance of in-plane, and do not produce any impact to measuring.If necessary, in measuring circuit, can increase calibration chart.
Figure 15 is for the schematic cross sectional views that conducting liquid is applied, sprays or adhere to the device on the cover plate shown in Figure 14.In Figure 14, identical reference number represents and same or analogous parts shown in Figure 12 and 13.Be with the difference of Figure 13, replaced by nozzle 85 for damping roller.Having with conductive region part 2(and not showing) template of corresponding perforation pattern can be arranged between cover plate 1 and the nozzle 85, so that be limited in conductive region part 2 such as the spraying 86 of the conducting liquid of aqueous solution.Can also make spraying regularly synchronous with the cover plate feed speed, and use plural nozzle or with the opposite side of arrangement of nozzles at cover plate.
Figure 12 and 13 shown devices also can be used for conducting liquid apply, bonding or spray on the nonwoven web shown in Figure 14 20.
Now, will explain embodiments of the invention.
Example
Embodiment 1
On the sheet material 3 of being made by Low Density Polyethylene, four square holes that are of a size of 13mm * 13mm are arranged in the position corresponding with area part " 2 " among Fig. 3.Four square conductive sheets 2 that are of a size of 15mm * 15mm are cut from the upper through-thickness of the electric conductivity nonwoven web (thickness 0.3mm) that is made of commercially available polyester/paper.The periphery of each square conductive sheet of being made by electric conductivity nonwoven web 2 utilizes binding agent or heat seal to be fixed on each square hole of Low Density Polyethylene film-making material 3, thereby obtains to have according to the present invention the cover plate of structure shown in Figure 5.The resistance value of the square conductive sheet through-thickness of being made by electric conductivity nonwoven web 2 is 400 to 500 ohm.
The workbench that the name of buying from the applicant is called the body composition measurement device of MC-180 is coated with this cover plate, and experimenter's body fat is measured.In order to contrast, the data in the cover plate situation have also been obtained not use.By the data that obtain are compensated, might eliminate the difference of the measurement result aspect that obtains when using cover plate and not using cover plate.
Embodiment 2
Use commercially available electric conductivity urethane foam sheet material (be 5mm without the thickness in the compression situation, the thickness under 40 kilogram weights is 0.3mm) to replace the square conductive sheet of being made by electric conductivity nonwoven web 2, and the identical operation of repetition and embodiment 1.Resistance value along the thickness direction of square conductive net 2 is several ohm.
Adopt the method identical with embodiment 1 to assess cover plate.In this case, measurement result can be used in uncompensated situation.
Embodiment 3
The fabric that use is made by the electrically conductive polyamide fiber is as the square conductive sheet of electric conductivity nonwoven web 2, repeats the operation identical with embodiment 2.Resistance value along the thickness direction of square conductive net 2 is several ohm.
Adopt the method identical with embodiment 1 to assess cover plate.In this case, measurement result can be used in uncompensated situation.
Embodiment 4
Cover plate according to the present invention is prepared from by polypropylene manufacture-illegal woven webs is carried out conductive processing.
Conductive paint is coated to Calx zone (limed areas) corresponding with conductive region part shown in Figure 6 on the commercially available nonwoven web of polypropylene system to be located.Like this, conductive paint sees through polypropylene manufacture-illegal woven webs from top to bottom.Conductive paint was prepared from by the argentum powder that makes 100 parts by weight, the acrylic resin of 1000 parts by weight and the toluene mixing of 3000 parts by weight in 10 minutes, wherein, be that the average particulate diameter that 0.2 micron native silver pulverizes the described argentum powder of making is 50 microns by making average thickness, total volume density is 0.03g/cm
3Conductive paint is coated on the propylene manufacture-illegal woven webs, and sees through this net from top to bottom.The resistivity that records after dry has outstanding performance aspect electric conductivity, be 7 * 10
-4Ω-cm.
Adopt the method assessment cover plate identical with embodiment 1, and the discovery measurement result can be used in uncompensated situation.
Rubber antiskid point (spot diameter is about 1-3mm, and dot spacing is about 1cm) is printed on the lower surface of nonwoven web insulating regions part 3.When being placed on the workbench 11 of body composition measurement device 10, the cover plate that makes do not observe slippage.
Embodiment 5
The Domestic wet type cover plate
Shown in the cutaway view of Fig. 5, according to the roll-type material storehouse 60 of cover plate of the present invention by use by the pad that staple fibre-pulp mixture manufacture-illegal woven webs is made (13mm * 13mm is 1mm without thickness in the compression situation) that is used for conducting strip 2 be used for insulating regions part 31,32 low density polyethylene films (thickness is that 15 μ m are to 40 μ m) is prepared from.The pad periphery is thermally welded to the opening that is opened on the low density polyethylene films on interior week.
Final cover plate is immersed in the aqueous solution that is dissolved with humectant metaphosphate, antibacterial and aromatic, so that staple fibre-paper pulp blend fabric absorbent solution.The water that remains in the low density polyethylene films is removed by making cover plate pass through suction roll.Subsequently, cover plate is wound in the roll-type material storehouse.
The width in roll-type material storehouse 60 is 430mm, and length is about 27m, comprises that every cover plate of 100 device cover plate 1'(is of a size of 430 * 450mm).The perforation that can be torn by hand is formed between two continuous device cover plates.
Demonstrate almost zero resistance by the pad that the staple fibre that has absorbed solution-pulp mixture manufacture-illegal woven webs is made.
Embodiment 6
The wet type cover plate that is used for comprehensive physical examination
The roll-type material storehouse 60 of wet type cover plate is prepared from by the technique identical with embodiment 5.But, in this case, because do not shear cover plate, so do not form peelable perforation.Shorten at interval between continuous two device cover plate 1'(430 * 450mm).The total length of 100 device cover plates is 450m.
Can in the automatic cover plate distributor of as shown in figure 10 cover plate, use smoothly final roll-type material storehouse.
Should be appreciated that to the invention is not restricted to aforesaid embodiment that without departing from the present invention, those skilled in the art can improve, transform and change above-described embodiment.