CN1577667A - Inputting device with pressing sensor function - Google Patents
Inputting device with pressing sensor function Download PDFInfo
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- CN1577667A CN1577667A CN 200410061631 CN200410061631A CN1577667A CN 1577667 A CN1577667 A CN 1577667A CN 200410061631 CN200410061631 CN 200410061631 CN 200410061631 A CN200410061631 A CN 200410061631A CN 1577667 A CN1577667 A CN 1577667A
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Abstract
Provided is a push sensor having a structure capable of varying with high precision the number of input points in conformity with the intensity of pressing force in particular. This push sensor has an elastic member 2, a composite sheet 11 having a reinforcing member 4 provided on the back side of the elastic member to regulate the elastic member so as not to bend beyond a prescribed level, and a membrane sheet 20 having a plurality of contacts provided on the reinforcing member 4 side of the composite sheet 11 with a prescribed distance parted from the composite sheet. Since the composite sheet 11 is used, a deformation range in which the composite sheet 11 is bent can be continuously changed in conformity with the intensity of pressing force, and the number of input points can be varied with high precision in conformity with the intensity of the pressing force.
Description
Technical field
The present invention relates to carry the compression sensor on miniaturized electronic devices etc., particularly relate to and have the count compression sensor of structure of high accuracy change of the input of to make according to the size of pressing force.
Background technology
Below shown in the occasion that is pressed at a plurality of buttons of patent documentation 1, can be to multidirectional moving hand (point), move to the direction corresponding and allow to pointer with the button numbers at the center of the button that is pressed.
On the other hand, patent documentation 2 is inventions of input units such as relevant contact type panel with patent documentation 3, can enumerate following problem as original problem points, pressing force by finger etc. enters the upside transparency electrode between a plurality of isolation pads, and forms a plurality of contacts when contacting with the transparency electrode of downside.
Like this, just had various inventions in the past, and for example, cooperated its purposes, the occasion that exists a plurality of inputs to count utilizes it to come in the hope of improving the invention of operational convenience, perhaps finds the inconvenience that exists a plurality of inputs to count, prevents invention that its takes place etc.
Patent documentation 1: the spy opens the 2001-142615 communique
Patent documentation 2: open flat 5-71939 communique in fact
Patent documentation 3: the spy opens flat 5-189150 communique
Yet above-mentioned patent documentation is not to control the invention that (restriction) input is counted according to the size of pressing force.For example, patent documentation 1 is that the button that basis is pressed is the invention that even number or odd number come the steering needle moving direction, and can not limit the number that makes it up to the button that is pressed according to the size of pressing force.Patent documentation 2 and 3 also all is like this.
In addition, in Fig. 4 of patent documentation 1, illustrate and have printed substrate 133 that is provided with keyed jointing contact 134 and the sectional view that is provided with the key thin slice 135 of carbon contact point 136 in position with described keyed jointing contact 134 subtends, all do not have explanation yet how the big or small described key thin slice 135 that is accompanied by pressing force will take place by the flexible deformation, do not know what material to prepare described key thin slice 135 yet with.
In addition, in the structure of Fig. 4 of patent documentation 1,, cause the distortion of large-scale thin slice easily press...withing one's finger when pressing the thin slice of side.Though the scope of measurable thin slice distortion can have variation to a certain degree because of the size of pressing force, but owing to be that conductive part at each subtend face of the thin slice of the thin slice of upside and downside is easy to deformed configurations immediately because of described thin slice distortion, be in contact condition because of the distortion of a little thin slice just is easy to make between a plurality of conductive parts, formed and very be difficult to the structure of coming the input of high accuracy restriction contact to count according to the size of pressing force.
On the other hand, in the occasion of the sort of structure of Fig. 4 of patent documentation 3 (C) and input state, owing to be the isolation pad of placing regularly 5, thereby be very difficult to make contact between any conductive layer 32,42 by the pressing force of finger.That is, in the structure of Fig. 4 (C), make between the conductive layer 32,42 contact just need the pressing force of institute's sizing, this pressing force is compared with the sort of structure of Fig. 4 of patent documentation 1, because of the existence of isolation pad 5 becomes bigger.This occasion in case apply bigger pressing force, is not only between the conductive layer 32,42 in certain some contact, but is contacted on 3 points between the conductive layer 32,42 as Fig. 4 (C).And, if reduce this pressing force, just becoming from the state of 3 inputs that input counts immediately is 0, even perhaps increase pressing force, also be very difficult to import the variation of counting and can not make according to the size of pressing force making generation contact between the conductive layer 32,42 more than 3 o'clock.
Summary of the invention
For this reason, the objective of the invention is to solve above-mentioned original problem, particularly provide to have and to change the compression sensor of importing the structure of counting according to the size of pressing force accurately.
Compression sensor of the present invention is characterized in that, has compound foil and substrate foil, this compound foil have decide thickness, comprising: elastomer and be located at described elastomeric the inside side and limit the described elastomeric strengthening part of institute more than quantitatively that bend to; Described substrate foil is left institute's set a distance at strengthening part one side of described compound foil and described compound foil and is provided with and has a plurality of contact points,
Give prominence to and the formation projection respectively towards the position corresponding from strengthening part one side of described compound foil with described each contact point,
When pushing described compound foil surperficial, described elastomer and described strengthening part are towards described substrate foil direction flexible deformation, pushed described contact point and made described contact point switch to input state by described projection, at this moment, input is counted and is cooperated the size of pressing force to change.
In the present invention, can produce the flexible deformation partly in the position corresponding by elastomeric element with each contact point with flexibility, and can positively be communicated with each contact point, and prevent by strengthening part that the elastomeric element flexible deformation is excessive and can not damage the operation sense of touch.
In the present invention, the compound foil that has above-mentioned elastomeric element and strengthening part by use, above-mentioned compound foil can make flexible deformation's scope change continuously according to the size of pressing force, and the several sizes according to above-mentioned pressing force of above-mentioned input point are changed accurately.
In the present invention, when the scope with the size of pressing force is divided into a plurality of stages, preferably the above-mentioned input in each stage is counted and be constrained to different counting.The above-mentioned input in each stage rule of counting is changed.Have the compound foil that elastomeric element and strengthening part form as described above, the size that can be accompanied by pressing force suitably makes the deformation range of above-mentioned compound foil change.For this reason, the big or small above-mentioned input that is accompanied by above-mentioned pressing force is counted and also is easy to continuous variation, when the scope with above-mentioned pressing force is divided into a plurality of stage, the above-mentioned input in each stage is counted change regularly.
In addition, in the present invention, preferably: described substrate has: the upside thin plate and with described upside thin plate have decide at interval and the downside thin plate of subtend, be formed at the conductive part on the subtend face of described upside thin plate and downside thin plate, push described upside thin plate by described projection to downside thin plate direction, contact between described conductive part, switch to input state.
According to this structure, the surface of not only pushing above-mentioned compound foil makes above-mentioned compound foil produce bending, also by above-mentioned projection downwards by the conductive part that is pressed on above-mentioned upper tabs, make to contact between the conductive part of above-mentioned upper tabs and downside thin slice and begin input action.That is,,, also can't only just be in input state with this even a plurality of above-mentioned projection contacts above-mentioned upper tabs by above-mentioned compound foil bending.Touch among a plurality of projections of above-mentioned upper tabs, only projection further is subjected to making the pressing force that contacts between the above-mentioned conductive part arbitrarily, count at the moment (substrate foil further is pressed constantly) that become input state is extruded.
Like this, by making the compound foil bending make projection touch the phase I on the upper tabs and making the 2nd stage that contacts between the conductive part of substrate foil by described projection, at the necessary pressing force of each stage restriction, input is counted change regularly.
In addition, in the present invention, described elastomer for example is a silicone rubber.Adopt the words of silicone rubber to produce the flexible deformation with low load.
In addition, can adopt following structure, described strengthening part has the flange more outstanding than described elastomer, and described flange is by the inner face of basket institute buckle, and described elastomer is not fixed to and can be extracted by the outside to described basket.
In addition, be preferably in described elastomeric surface and be formed with the layer lower than described elastomeric frictional resistance.Like this, can reduce frictional resistance, can make operating surface have slick and sly operability.For example described low frictional resistance layer is the silicone layer that comprises inorganic filler.
Description of drawings
Fig. 1 is the vertical view from the compression sensor of the present invention of operating surface observation.
Fig. 2 is the sectional view that Fig. 1 cuts open along the 2-2 line.
Fig. 3 is the action specification figure when hanging down load.
Fig. 4 is the action specification figure when intermediate cycling load.
Fig. 5 is the action specification figure when top load.
Fig. 6 is the vertical view of the compression sensor of expression the 2nd execution mode of the present invention.
Among the figure: 1-compression sensor, 2-elastomeric element, 3-operating surface, the 4-strengthening part, 4a-flange, 5a～5e-projection, 6a, 6b-support portion, 10-basket, 10a-breach hole, the 10b-clamping part, 11-compound foil, 20A～20E-contact point, the membranaceous thin slice of 20-, the 21-upper tabs, 22-downside thin slice, 23-isolation pad.
Embodiment
Fig. 1 is that vertical view, the Fig. 2 from the being seen compression sensor of the present invention of operating surface one side be Fig. 1 along sectional view, Fig. 3 to Fig. 5 of 2-2 line is action specification figure.
As shown in Figure 1, compression sensor 1 has along the elastomeric element 2 of the elongated, belt-shaped of directions X.In addition, be provided with membranaceous thin slice (substrate foil) 20, be provided with contact point 20A, 20B, 20C, 20D, 20E at above-mentioned membranaceous thin slice 20 upper edge directions Xs in the inside of elastomeric element 2 side.Each contact point 20A～20E is with equidistant formation.In the present embodiment, being spaced apart below the 10mm of contact point is specially 4mm.
Above-mentioned compression sensor 1 can be carried on miniaturized electronic devices, for example on camera, portable phone, remote controller relevant with sound equipment etc.Above-mentioned compression sensor 1 forms rectangular breach hole 10a on the basket 10 of electronic device, the operating surface 3 on above-mentioned elastomeric element 2 surfaces exposes from this breach hole 10a.
Above-mentioned elastomeric element 2 is forming by elastically-deformable soft material, and aforesaid operations face 3 forms and overlaps on the surface of above-mentioned elastomeric element 2 with the low material of frictional resistance in addition.The low operating surface of this frictional resistance 3 is set, finger is moved to the X1-X2 direction sleekly with respect to operating surface 3, thereby can improve the convenience of operation.But, the low layer of above-mentioned frictional resistance also can be set on aforesaid operations face 3, operating surface 3 is played on surface that also can above-mentioned elastomeric element 2.
As shown in Figure 2, strengthening part 4 face (the inside) that is stacked in the Z2 side of above-mentioned elastomeric element 2 is gone up and is formed.In Fig. 1 and execution mode shown in Figure 2, above-mentioned elastomeric element 2, be formed at the low layer of the lip-deep frictional resistance of above-mentioned elastomeric element 2 and be located at above-mentioned elastomeric element 2 the inside strengthening part 4 these 3 layers constitute decide the compound foil 11 of thickness.
As shown in Figure 1, above-mentioned strengthening part 4 is a film like, is more to the outstanding shape in side than aforesaid operations face 3.Than aforesaid operations face 3 is flange 4a in the present embodiment to the outstanding part in side more.This flange 4a surrounds operating surface 3 ground and is formed at whole peripheral surface.
Linearity equally spaced is provided with 5 hemispherical projection 5a, 5b, 5c, 5d, 5e on the face of the Z2 of above-mentioned strengthening part 4 side.At this moment, above-mentioned projection 5a～5e be arranged to be positioned at above-mentioned contact point 20A～20E directly over.Also have, above-mentioned projection may not be hemispherical.And the outside at projection 5a and 5e forms support portion 6a, 6b.These projections 5a～5e and support portion 6a, 6b form by printing simultaneously with uv-hardening resin.But it is ultraviolet hardening resin that above-mentioned projection 5a～5e and support portion 6a, 6b may not one establish a capital.In above-mentioned ultraviolet hardening resin, can use the resin of the UV cured promoter of containing the epoxy resin resin.
Also have,, form adhesive linkage with cementability on the surface of above-mentioned support portion 6a, 6b though not shownly go out, bonding and be fixed with membranaceous thin slice 20.
As depicted in figs. 1 and 2, above-mentioned membranaceous thin slice 20 is that upper tabs 21 is established with downside thin slice 22 subtends, inserts laminar isolation pad 23 between above-mentioned upper tabs 21 and downside thin slice 22, and is mutual bonding and be fixed.Above-mentioned upper tabs 21 all is to have flexible material by PET resin or polyimide resin etc. to form with downside thin slice 22, and above-mentioned isolation pad 23 forms at adhesive linkage.But, also can: each thin slice 21,22 and isolation pad 23 are formed by PET resin etc. all, and be bonding mutually and be fixed.
As shown in Figure 2, at the subtend face of above-mentioned upper tabs 21, form circular conductive part 21a, 22a in the subtend position of above-mentioned projection 5a with downside thin slice 22.In addition, on above-mentioned isolation pad 23, be formed with the above-mentioned conductive part 21a of the ratio that exposes above-mentioned conductive part 21a, 22a, manhole 23a that the 22a diameter is big.Also have,, above-mentioned projection 5b, 5c, 5d, 5e are also formed conductive part 21b, 21c, 21d, 21e, 22b, 22c, 22d, 22e and through hole 23b, 23c, 23d, 23e with above-mentioned same.Form the contact point of present embodiment by a pair of above-mentioned conductive part of mutual subtend.
As shown in Figure 1, above-mentioned membranaceous thin slice 20 on above-mentioned downside thin slice 22, does not extend to form the 22a1 of wire electrode portion, 22b1,22c1,22d1,22e1 and a common electrode portion 24 from above-mentioned conductive part 22a～22e to the X1 direction respectively mutually overlappingly.Common electrode portion 24 forms up to each conductive part 21a～21e of upper tabs 21 from 22 extensions of downside thin slice.In addition, above-mentioned electrode part 22a1～22e1 and common electrode portion 24 extend to not shown control part and form.
Also have, above-mentioned conductive part 21a～21e, 22a～22e, electrode part 22a1～22e1 and current electrode portion 24 form with metal materials such as copper or silver.
At above-mentioned control part, give electric current to above-mentioned common electrode portion 24.For example, conductive part 21c and 22c were in contact with one another and made above-mentioned electric current to export from electrode part 22c1 this moment, detected operation contact point 20 at above-mentioned control part and were pressed.So, can be detected too other contact point 20A, 20B, 20D, 20E.
In the very narrow at interval compression sensor 1 of above-mentioned such contact point, the power of people's finger touch suffered effect of contact point during to operating surface 3 is for example 0.196N (newton).Best contact point switches to input state when therefore, having acted on the power of 0.196N on operating surface 3.Also have, be for example 0.098～0.147N in order to make single contact point switch to the necessary power of input state with respect to membranaceous thin slice 20.Therefore, must be the material that the flexible deformation is just taken place in the low load of 0.049～0.098N as elastomeric element 2.To this, after studying various materials, find high density polyethylene (HDPE) or polypropylene hardness height, under low load condition, can not produce the flexible deformation.Particularly hardness such as high density polyethylene (HDPE) is to the dependence height of thickness, with respect to the size of the change stiffness of thickness very cataclysm takes place.
In addition, conversely, low density polyethylene (LDPE) characteristic at high temperature is very poor and be not durable.To this, also can locally produce the flexible deformation with low load when finally having confirmed to have used silicone rubber.In addition, its hardness of silicone rubber can be used unlike high density polyethylene (HDPE) is so big easily to the dependence of thickness.Also have, be not limited to silicone rubber, also the parts that can be with other rubber as elastomeric element 2.
But above-mentioned elastomeric element 2 is single, owing to become excessive to the flexible deformation of Z direction with respect to pressing force, so be provided for making the strengthening part 4 of flexible deformation's appropriateness in the inside of above-mentioned elastomeric element 2.Above-mentioned strengthening part 4 can be with formation such as PET resin or acrylic resins, by this strengthening part 4 being located at the inside of elastomeric element 2, just can limit to the bending of Z direction institute quantitatively more than.
In the present invention, as above use the compound foil 11 of the strengthening part 4 of bending more than institute is quantitative that for example has the elastomeric element 2 that forms with silicone rubber and the above-mentioned elastomeric element 2 of restriction like that, by the compound foil 11 that uses this structure, the change that is easy to make deformation range because of the bending of the caused above-mentioned compound foil 11 of pressing force to be accompanied by the size of above-mentioned pressing force changes continuously.
As shown in Figure 3, in the compression sensor 1 of present embodiment, when the operator was put into operating surface 3 surperficial with finger F, the interval between above-mentioned contact point was limited in covering the degree of contact point 20B, 20C, 20D.At this moment, for example to the Z2 direction down face contact point 20C directly over, at first the summit F1 from the finger tripe of finger F is applied to load M1 on the elastomeric element 2, makes above-mentioned elastomeric element 2 produce the flexible deformation partly.At this moment, above-mentioned elastomeric element 2 flexible deformations' scope is roughly above-mentioned finger F and touches scope on the above-mentioned elastomeric element 2.And, being accompanied by the distortion of elastomeric element 2, the flexible deformation also takes place in strengthening part 4, and only projection 5c is directed downwards to Z2 and is depressed.As above such, elastomeric element 2 is single, and above-mentioned elastomeric element 2 is crooked excessive during imposed load M1, particularly also produces the flexible deformation in the bigger scope of scope that touches than finger F on the above-mentioned elastomeric element 2, might be for example projection 5c not only, projection 2b or 5d are also pushed downwards.For this reason, adopt following structure, strengthening part 4 is set below above-mentioned elastomeric element 2 produces bending to make as far as possible in the scope that only finger F is pushed, above-mentioned strengthening part 4 absorbs the bending of above-mentioned elastomeric element 2 to a certain degree.
As shown in Figure 3, because above-mentioned projection 5c locomotivity downwards makes upper tabs 21 that the flexible deformation be taken place, the conductive part 21c of upper tabs 21 and the conductive part 22c of downside thin slice 22 are in contact with one another and conducting.Like this, just can detect contact point 20C is pushed.
As mentioned above, owing to count required pressing force for example for 0.196N, so Fig. 3 is that for example to make pressing force be the occasion of 0.196N in order to obtain an input.
In Fig. 4, further push finger F from state shown in Figure 3 and increase words the load M2 of above-mentioned elastomeric element 2 to the Z2 direction, the finger tripe of above-mentioned finger F is more flat and increase contact area with above-mentioned elastomeric element 2 with regard to the state than Fig. 3 of becoming, the flexible deformation's of above-mentioned elastomeric element 2 scope is bigger than the occasion of Fig. 4, pushes the below of above-mentioned elastomeric element 2 across bigger scope.Therefore, in Fig. 4, the flexible deformation's of above-mentioned elastomeric element 2 scope is bigger than the occasion of Fig. 3.At the state of Fig. 4, these 2 projections of projection 5b and 5c move downwards, and because of this locomotivity, the conductive part 22b and the 22c of the conductive part 21b of above-mentioned upper tabs 21 and 21c, 21d and downside thin slice 22 are in contact with one another and conducting.Like this, just can detect contact point 20B and 20C is pushed.
In Fig. 5, further push finger F from state shown in Figure 4 and increase words the load M3 of above-mentioned elastomeric element 2 to the Z2 direction, the finger tripe of above-mentioned finger F is more flat and increase contact area with above-mentioned elastomeric element 2 with regard to the state than Fig. 4 of becoming, and the flexible deformation's of above-mentioned elastomeric element 2 scope is bigger than the occasion of Fig. 4.As a result, at the state of Fig. 5, projection 5b, 5c, these 3 projections of 5d move downwards, and because of this locomotivity, conductive part 22b, 22c, the 22d of conductive part 21b, the 21c of above-mentioned upper tabs 21,21d and downside thin slice 22 are in contact with one another and conducting.Like this, just can detect contact point 20B, 20C, 20D is pushed.
Like this, above-mentioned elastomeric element 2 is according to its flexible deformation's range of size of pressing force (load), pressing force becomes big words, follow in flexible deformation's scope of this above-mentioned elastomeric element 2 and become big gradually, it is 1 that the state contact minimum with respect to load in Fig. 3 counted, it is 2 that loaded-up condition contact in the middle of can making among Fig. 4 is counted, and to count be 3 to the above-mentioned contact of the state of load maximum among Fig. 5.
Change between above-mentioned conductive part 21a～21e and the 22a～22e, and the interval between projection 5a～5e, the number that this contact is counted also changes certainly.Make the stenosis of above-mentioned interval narrow,, just can make count 3 more than the state of Fig. 5 of above-mentioned input by increasing pressing force.For example, to count be 1～2 in above-mentioned input in the time of can being set in the underload state of Fig. 3, and to count be 3～4 in above-mentioned input when the intermediate cycling load state of Fig. 4, and to count be more than 5 in above-mentioned input when the top load state of Fig. 5.
In any case, in the present invention, the words of the compound foil 11 that employing is constituted with elastomeric element 2 and strengthening part 3, the state of for example stipulating Fig. 3 is for the state of the 1st stage of low load, Fig. 4 is the state of the 2nd stage of intermediate cycling load, Fig. 5 when being the 3rd stage of top load, and the above-mentioned input that can be limited in each stage is accurately counted and is different numbers.Particularly in the present invention, preferably change the input in each stage regularly and count, such as the input that makes above-mentioned the 1st stage count be 1, the input in above-mentioned the 2nd stage count be 2, the input in above-mentioned the 3rd stage is counted is 3.
If can keep the state of Fig. 3 to Fig. 5, also can for example form projection 5a～5e with conductive component, only constitute membranaceous thin slice 20 with downside thin slice 22 and conductive part 22a～22e.This occasion is because of contacting of projection and conductive part becomes input action.
But, above-mentioned elastomeric element 2 only increases the big occasion of the just easy change of this flexible deformation's scope of a little load to make than the elastomeric element 2 softer materials of Fig. 2, by only applying the load M1 same with Fig. 3, elastomeric element 2 bendings are very big as shown in Figure 5, just might touch on the upper tabs 21 by 3 projection 5b～5d.Conversely, in the occasion of harder material, the part that is pressed does not produce bending, might just make a plurality of contact point conductings once.In this occasion, projection 5b～5d is as conductive component, for example only constitute the words of membranaceous thin slice 20 with downside thin slice 22 and conductive part 22a～22e, counting in certain loaded-up condition input is 3, even above-mentioned load is increased to more than it, have only the occasion of 3 projection 5b～5d with the part of the big or small subtend of finger F, can not increase above-mentioned input and count.For this reason, can not make the above-mentioned input variation of counting effectively even increase load gradually.
For this reason, in the present invention, by adopting following structure, make membranaceous thin slice 20 have downside thin slice 22 at least, apart from the upper tabs 21 of above-mentioned downside thin slice 22 set a distances, be formed at conductive part 21a～21e, the 22a～22e on the subtend face of above-mentioned upper tabs 21 and downside thin slice 22 and constitute, resinous projection 5a～5e is pressed into above-mentioned upper tabs 21 on downside thin slice 22 1 sides, above-mentioned conductive part 21a～21e, 22a～22e begin contact and just become input action, and just can do the load that increases gradually in pairs increases the structure that input is counted.
That is, even 3 projection 5b, 5c, 5d touch that this state does not become input action yet on the above-mentioned upper tabs 21 as shown in Figure 5 with low load M1.Further above-mentioned membranaceous thin slice 20 is applied strong load from this state, conductive part 21a～21e, contact between 22a～22e and begin to become input action, in the stage of pushing membranaceous thin slice 20, middle projection 5c is subjected to the strongest load among touching the projection on the upper tabs 21, with respect to only so that its below conductive part 21c, the load that contacts between the 22c is applied to the state on the above-mentioned projection 3c, the load that is subjected at above-mentioned projection 5c is not applied to the projection 5b of both sides, on the 5d, do not have the conductive part 21b and the 22b that only make thereunder, the load that contacts between 21d and the 22d.Therefore, even 3 projections of state at low load M1 temporarily touch on the upper tabs 21, it is 1 that input is counted, if increase the words of load gradually from this state, on projection 5b, 5d, also applied the load that only makes the intensity that contacts between the conductive part, thereby the size that can access according to load is easy to make input to count regularly by 1 → 2 → 3 structures that change.
Also have, bigger in order to make that conductive part 21a～21e, 22a as membranaceous thin slice 20～the required load ratio of 22e contact makes elastomeric element 2 bendings make projection touch load required on the upper tabs 21, can come the variation of counting according to the size of load with higher accuracy limitations input, thus better.
In addition, Fig. 1 to Fig. 5 is: do not touch on the upper tabs 21 at non-pressed state lower process 5a～5e, if but the structure of employing Fig. 1, Fig. 2, even then since above-mentioned projection 5a～5e touch and also do not become input action on the above-mentioned thin slice 21, so it is also passable to be in the state that above-mentioned projection 5a～5e touches on the above-mentioned upper tabs 21 in non-pressed state.
In addition, as shown in Figure 1, the surrounding edge that the strengthening part 4 of present embodiment has than operating surface 3 more extends and the flange 4a of formation to the X-Y plane direction.Form flange 4a like this, in the time of on the basket 10 that above-mentioned compression sensor 1 is installed to electronic device, if compression sensor 1 is inserted the words of breach hole 10a from the inside of basket 10, the step-like clamping part 10b that above-mentioned flange 4a just is formed on basket 10 inboards fixes, and has prevented that compression sensor 1 is pulled out from basket 10.
Also have, in above-mentioned compression sensor 1,, but be not limited to this with the thin slice formation strengthening part 4 of a slice film like, also can be in the inside of elastomeric element 2 fixing strengthening part, other the parts of film like that will be provided with above-mentioned projection 5a～5e again are fixed on the above-mentioned strengthening part.The parts different with strengthening part at this moment can form with identical resins such as PET.
Fig. 6 is the vertical view of the compression sensor of expression the 2nd execution mode.These compression sensor 30 its operating surfaces 33 form circular.This compression sensor 30 also has identical structure with above-mentioned compression sensor 1, is formed by elastomeric element 32 that forms with silicone rubber and strengthening part 34.
In above-mentioned compression sensor 30,12 contact points 31 are set circle-shapedly along operating surface 33.Above-mentioned strengthening part 34 has collar flange 34a outstanding along the outside edge of operating surface 33 and the collar flange 34b that gives prominence to inner peripheral side.Like this, when the inside of basket was inserted into the breach hole of the ring-type that is formed on the basket, above-mentioned flange 34a, 34b were fixed on the inboard of above-mentioned basket, have prevented that above-mentioned compression sensor 30 from being extracted from basket in above-mentioned compression sensor 30.
Also having, be not limited to linearity or circular as the shape of the operating surface of above-mentioned compression sensor, also can be ellipticity or crosswise.
In addition, in the above-described embodiment, by using transparent silicone rubber and PET resin etc., can from the opposite side printing or the coating of operating surface, can present versicolor outward appearance, thereby can improve the degree of freedom in the design.
In the present invention that Fig. 3～Fig. 5 had illustrated, size according to load, input is counted and is changed, and particularly is divided into a plurality ofly when interval in the magnitude range with load, can limit the above-mentioned input that makes each stage accurately according to each stage and count and be different numbers.Particularly can adopt according to each phase rules the structure that above-mentioned input counted change.
Therefore, the compression sensor of Fig. 1～shown in Figure 6 can be for example as the volume operating portion of stereo set or play the function of channel switching part etc.For example, firmly push gradually, follow in this input increases of counting with finger, the volume rising, the speech amount that weakens of Shou Zhi pressing force just reduces conversely.In addition, apply the layer littler than the frictional resistance of above-mentioned elastomeric element 2 on the surface of above-mentioned elastomeric element 2, during with the operating surface of the above-mentioned compound foil 11 of finger touch, come switching channels, this occasion increases pressing force with finger, just can change its switch speed.
The present invention who more than illustrated is the compound foil that has elastomeric element and strengthening part by use, and make above-mentioned compound foil that flexible deformation's scope is changed continuously, thereby being counted, input changes accurately.
Claims (8)
1. compression sensor is characterized in that: have compound foil and substrate foil, this compound foil have decide thickness, comprising: elastomer and be located at described elastomeric the inside side and limit the described elastomeric strengthening part of institute more than quantitatively that bend to; Described substrate foil is left institute's set a distance at strengthening part one side of described compound foil and described compound foil and is provided with and has a plurality of contact points,
Give prominence to and the formation projection respectively towards the position corresponding from strengthening part one side of described compound foil with described each contact point,
When pushing described compound foil surperficial, described elastomer and described strengthening part are towards described substrate foil direction flexible deformation, pushed described contact point and made described contact point switch to input state by described projection, at this moment, input is counted and is cooperated the size of pressing force to change.
2. compression sensor according to claim 1 is characterized in that: when the magnitude range with pressing force was divided into a plurality of stage, counting in the described input in each stage was restricted to different numbers.
3. compression sensor according to claim 2 is characterized in that: the described input in each stage rule of counting changes.
4. compression sensor according to claim 1, it is characterized in that: described substrate foil has: the upside thin plate and with described upside thin plate have decide at interval and the downside thin plate of subtend, be formed at the conductive part on the subtend face of described upside thin plate and downside thin plate, push described upside thin plate by described projection to downside thin plate direction, make between the described conductive part to contact, and switch to input state.
5. compression sensor according to claim 1 is characterized in that: described elastomer is a silicone rubber.
6. compression sensor according to claim 1, it is characterized in that: described strengthening part has the flange more outstanding laterally than described elastomer, described flange is stoped described elastomer to be extracted by the inner face of basket institute buckle, and described elastomer can be pulled out to the outside of described basket.
7. compression sensor according to claim 1 is characterized in that: be formed with the frictional resistance low frictional resistance layer lower than described elastomer on described elastomeric surface.
8. compression sensor according to claim 7 is characterized in that: described low frictional resistance layer is the silicone layer that comprises inorganic filler.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003190760 | 2003-07-03 | ||
| JP2003190760 | 2003-07-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1577667A true CN1577667A (en) | 2005-02-09 |
| CN1275271C CN1275271C (en) | 2006-09-13 |
Family
ID=34587129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410061631 Expired - Fee Related CN1275271C (en) | 2003-07-03 | 2004-06-23 | Inputting device with pressing sensor function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1275271C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873869B (en) * | 2005-05-16 | 2011-02-02 | 索尼株式会社 | Switch mechanism and electronic apparatus |
| CN102692286A (en) * | 2011-02-03 | 2012-09-26 | 精工爱普生株式会社 | Detection device, electronic apparatus, and robot |
| CN106104732A (en) * | 2014-03-07 | 2016-11-09 | 信越聚合物株式会社 | Switching device |
| CN107577367A (en) * | 2017-08-30 | 2018-01-12 | 广东深越光电技术有限公司 | A kind of touch display unit that elastic deformation can occur easily |
-
2004
- 2004-06-23 CN CN 200410061631 patent/CN1275271C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873869B (en) * | 2005-05-16 | 2011-02-02 | 索尼株式会社 | Switch mechanism and electronic apparatus |
| CN102692286A (en) * | 2011-02-03 | 2012-09-26 | 精工爱普生株式会社 | Detection device, electronic apparatus, and robot |
| CN102692286B (en) * | 2011-02-03 | 2015-11-18 | 精工爱普生株式会社 | Pick-up unit, electronic equipment and robot |
| CN106104732A (en) * | 2014-03-07 | 2016-11-09 | 信越聚合物株式会社 | Switching device |
| CN107577367A (en) * | 2017-08-30 | 2018-01-12 | 广东深越光电技术有限公司 | A kind of touch display unit that elastic deformation can occur easily |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1275271C (en) | 2006-09-13 |
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