CN102402976A - Switch body of electronic keyboard instrument - Google Patents
Switch body of electronic keyboard instrument Download PDFInfo
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- CN102402976A CN102402976A CN2011102722386A CN201110272238A CN102402976A CN 102402976 A CN102402976 A CN 102402976A CN 2011102722386 A CN2011102722386 A CN 2011102722386A CN 201110272238 A CN201110272238 A CN 201110272238A CN 102402976 A CN102402976 A CN 102402976A
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Abstract
The invention provides a switch body of an electronic keyboard instrument, which can make the switch operation stable and improve the key operation detecting precision. A flexible bulging part (22) belonging to the switch body (SW) and driven by a key (10) is formed by a base part (21) equipped on a base plate to bulge upwards in a dome-shaped way. Fixed contact parts composed of a pair of comb-shaped electrodes are equipped on the upper surface of the base plate. Three movable contact parts (25) are respectively opposed to the three fixed contact parts. During a non-pressing state, the movable contact parts are respectively 25A, 25B,25C according to the heights of the movable contact part sides towards the base plate. During a turned-on state through the keys, the sequentially turned-on movable contact parts are respectively 25A, 25B and 25C. According to the position relationship, the movable contact part 25B is arranged between the movable contact part 25A which is precedent and the movable contact part 25C.
Description
Technical field
The present invention relates to a kind of switch body of electric keyboard instrument of the operation that detects key.
Background technology
In the past, in electric keyboard instrument, known a kind of electric keyboard instrument (following patent documentation 1) that disposes by the switch body of displacement member drives such as the key that moves through button operation itself, weight.This switch body is formed by soft resin etc.; Moving contact portion is located at highlightedly from base portion to substrate-side and is the elasticity bellying that cheese bloats; Moving contact portion through with pairing substrate on fixed contact portion butt become conducting (connection) state, detect button operation.
In addition, shown in following patent documentation 2, be provided with in the structure of the moving contact portion more than 3, the structure that is set in the order that button goes to be communicated with in the journey is arranged 1 switch body.So, detect the having or not of button, key scroll etc. according to the connection situation of each moving contact portion.
This dome-shaped switch body utilizes its elasticity to be out of shape by driving, when becoming non-key-press status, returns to original-shape.When the time comes and since moving contact portion also by the skirt section flexibly one be located at the elasticity bellying, therefore when moving contact portion and fixed contact portion butt, moving contact portion elastic deformation returns to original-shape when becoming non-key-press status.
Patent documentation 1: No. 3381604 communique of Jap.P.
Patent documentation 2: the special public clear 61-54234 communique of Japan
But, as the switch body of above-mentioned patent documentation 2, disposing in the structure of the moving contact portion more than 3 along fore-and-aft direction with being row, switch body integral body forms elongate shape, with respect to from horizontal power, becomes unstable easily.For example laterally playing sideling under the situation of key as glissando (glissando) playing method, moving contact portion tilts easily.
Because switch body integral body be elongate shape, and go at button that the moving contact portion from player's side is communicated with successively in the journey, so when when the horizontal midway power of driving puts on switch body, the switch body easy deformation.Therefore, button go in the journey the last moving contact portion that is communicated with the stage that reality is communicated with possibly take place this moving contact portion be not with fixed contact portion over against situation.So, this moving contact portion can not with fixed contact portion butt suitably, switch motion is unstable.For example in the touch-responsive switch (touch response switch) of contact mistiming mode, exist badly as follows, that is, even in identical pressing under the bond strength, the value of speed data (velocity data) sometimes also can be different.
On the other hand, the moving contact portion that is communicated with at first is positioned at the position near player's side, so balancing the load temporarily is partial to player's side, and when button firmly, switch motion is unstable especially.In addition, stroke is also longer sometimes in the moving contact portion that is communicated with at first, and itself tilts easily, makes switch motion unstable.
When switch motion when ground is unstable as above-mentioned, tremble (chattering) the very difficult sometimes key operation that detects exactly easily.
Summary of the invention
The present invention makes in order to solve above-mentioned prior art problems, and its purpose is to provide a kind of switch body of electric keyboard instrument that can seek the switch motion stabilization and can improve the accuracy of detection of key operation.
In order to achieve the above object; The switch body of the electric keyboard instrument of technical scheme 1 of the present invention (SW) is provided with key accordingly, is driven by the biasing member (10,15) that utilizes button operation to carry out displacement, detects the operation of pairing key; Above-mentioned biasing member is key itself (10) or the member (15) moving with binding; It is characterized in that this switch body comprises: base portion (21), it is used to be installed in substrate (12); Elasticity bellying (22), it bloats from said base portion, is driven by above-mentioned biasing member; A plurality of moving contact portions (25); It is flexibly to be provided with 3 with the relative mode of fixed contact portion (17) that is configured on the aforesaid substrate at above-mentioned elasticity bellying at least; Through becoming connected state respectively with pairing fixed contact portion's butt; Setting above-mentioned a plurality of moving contact portion goes the order that is communicated with in the journey, button to go that the last moving contact portion that is communicated with is configured in than the position between 2 moving contact portions in its moving contact portion that is communicated with earlier at least in the journey at button.
In order to achieve the above object; The switch body of the electric keyboard instrument of technical scheme 2 of the present invention (SW) is provided with key accordingly, is driven by the biasing member (10,15) that utilizes button operation to carry out displacement, detects the operation of pairing key; Above-mentioned biasing member is key itself (10) or the member (15) moving with binding; It is characterized in that this switch body comprises: base portion (21), it is used to be installed in substrate; Elasticity bellying (22), it bloats from said base portion, is driven by above-mentioned biasing member; A plurality of moving contact portions (25); It is flexibly to be provided with 3 with the relative mode of fixed contact portion (17) that is configured on the aforesaid substrate at above-mentioned elasticity bellying at least; Through becoming connected state respectively with pairing fixed contact portion's butt; Set above-mentioned a plurality of moving contact portion and go the order that is communicated with in the journey at button, the moving contact portion that button goes to be communicated with at first in the journey is configured in than the position between 2 moving contact portions in the moving contact portion that is communicated with thereafter at least.
In order to achieve the above object; The switch body of the electric keyboard instrument of technical scheme 3 of the present invention (SW) is provided with key accordingly, is driven by the biasing member (10,15) that utilizes button operation to carry out displacement, detects the operation of pairing key; Above-mentioned biasing member is key itself (10) or the member (15) moving with binding; It is characterized in that this switch body comprises: base portion (21), it is used to be installed in substrate; Elasticity bellying (22), it bloats from said base portion, is driven by above-mentioned biasing member; A plurality of moving contact portions (25); It relatively flexibly is provided with 3 at above-mentioned elasticity bellying at least with the fixed contact portion (17) that is configured on the aforesaid substrate; Through becoming connected state respectively with pairing fixed contact portion's butt; That set that above-mentioned a plurality of moving contact portion goes to moving contact portion that the order that is communicated with in the journey, button go to be communicated with at first in the journey at button and area pairing fixed contact portion facing surfaces are greater than the area than any one and the pairing fixed contact portion facing surfaces in the moving contact portion that is communicated with thereafter.
Preferably at moving contact portion that button goes in the journey to be communicated with at first and area pairing fixed contact portion facing surfaces greater than area (technical scheme 4) than any one and the pairing fixed contact portion facing surfaces in the moving contact portion that is communicated with thereafter.Preferred button removes moving contact portion and the area more little (technical scheme 5) pairing fixed contact portion facing surfaces of more late connection in the journey.
In addition, the Reference numeral in the above-mentioned bracket is to illustrate.
Adopt technical scheme 1,2,3 of the present invention, can seek the switch motion stabilization, improve the accuracy of detection of key operation.
Adopt technical scheme 4, can make the big moving contact portion that is communicated with at first of stroke do not tilt and stably with fixed contact portion butt, therefore action is stable.
Adopt technical scheme 5, can make switch body miniaturization more.
Description of drawings
(a)～(b) of Fig. 1 is the schematic side view that has been conceived to use 1 key switch body, electric keyboard instrument of the 1st embodiment of the present invention.
(a)～(d) of Fig. 2 is the longitudinal section and the rear view of the switch body of the 1st, the 2nd embodiment.
(a)～(e) of Fig. 3 schematically shows the configuration mode of the moving contact portion in 1 switch body of variation and the figure of connection order.
Embodiment
Below, with reference to description of drawings embodiment of the present invention.
The 1st embodiment
(a) of Fig. 1 is the schematic side view that has been conceived to use 1 key switch body, electric keyboard instrument of the 1st embodiment of the present invention.
This electric keyboard instrument is provided with substrate 12, key 10, control part 19, tone generating portion 9 and switch body SW.Key 10 comprises Bai Jian 10W and black key 10B, and is whole not shown, looks from the player and disposes a plurality of keys 10 side by side along left and right directions.The structure of key 10 is all identical, leading section (left part of Fig. 1 (a)) with the key fulcrum 11 at rear portion be the center along the vertical direction (CW of Fig. 1 (a) and counterclockwise) swing (rotation) freely.The leading section of key 10 is applied in the acting force to the top all the time, and under non-key-press status, engages with not shown retainer and be limited in the initial position shown in (a) of Fig. 1.When key 10 when initial position is pressed down leading section, leading section is displacement downwards.
Switch body SW and each key 10 are configured on the substrate 12 accordingly, driven and detection signal is supplied in the control part 19 by pairing key 10.Each keyboard instrument is provided with 1 control part 19 and 1 tone generating portion 9.Control part 19 comprises CPU (central processing unit), ROM (ROM (read-only memory)), RAM (RAS), timer, memory storage and various interface etc.; Do not illustrate these parts one by one, CPU controls the action of whole musical instrument according to the program among the ROM of being stored in.Tone generating portion 9 comprises sound source loop, effect circuit and audio system etc., does not illustrate these parts one by one, produces the sound according to the control of being undertaken by control part 19.In this embodiment, the key 10 corresponding musical sounds of button operation have been produced with the carrying out that detects by switch body SW.
In this embodiment, illustration the structure that drives by key 10 of switch body SW, but the present invention is not limited thereto.Switch body SW is so long as be utilized in the biasing member that carries out displacement under the effect of button operation and drive and get final product, and this biasing member can be a key 10 itself, also can be the member that links with key 10.For example shown in Fig. 1 (b), biasing member also can be a weight 15.In addition, also can between key 10 and biasing member, be provided with folder and establish member.
That is, in the example shown in (b) of Fig. 1, below key 10, dispose weight 15 accordingly.Weight 15 is arranged with and the corresponding amount of the quantity of key along the orientation of key 10 side by side.Each weight 15 is that rotate freely along the CW and the counter clockwise direction of Fig. 1 (b) at the center with weight fulcrum 14.The position of the key fulcrum 11 and the fore-and-aft direction of weight fulcrum 14 all is the same.
The leading section of the leading section of weight 15 and key 10 utilizes rotation axis 13 rotations to be connected freely.Thereby the weight 15 of correspondence rotates with the This move that utilizes button operation, from key operation key 10 is rotated with linking.Mass concentration is in the rearward end of weight 15.Under free state, weight 15 disposes key 10 application of forces ground along the CW of Fig. 1 (b).The quality of utilizing weight 15 to be had, inertial force is applied in button operation, obtains the button sense of touch as mechanical piano (acoustic piaon).Switch body SW is driven by the drive division 16 of weight 15.
Next, the structure of switch body SW is described.The structure of each switch body SW is identical, and therefore the structure of 1 switch body SW is described typically.The (a) and (b) of Fig. 2 are longitudinal section and rear views of switch body SW.In the (a) and (b) of Fig. 2, the upside of figure is the rear, i.e. the side at key fulcrum 11 place, and the downside of figure is player's side (the place ahead).Below, also the length direction with key 10 is called fore-and-aft direction, will be called the rear from the look side at key fulcrum 11 place of player.
What switch body SW adopted moving contact portion and fixed contact portion is combined as 3 point types more than 3 (for a key; The sensor etc. that will be used to detect button operation is configured in the mode of press operation position thereon of 3 key) above structure, the structure of illustration 3 point types in the example of Fig. 2 (a).That is, switch body SW is the 3 point type touch-responsive switches that utilize the contact mistiming type that elastic components such as rubber constitute integratedly.
Shown in the (a) and (b) of Fig. 2, switch body SW has base portion 21, and base portion 21 is utilized operation such as fixed installations and is installed on the substrate 12.In switch body SW, be formed with from base portion 21 to above be the dome-shaped elasticity bellying 22 that bloats.Elasticity bellying 22 has the skirt section 26 from base portion 21 extensions and easy elastic deformation.The upper surface butt of key 10 and elasticity bellying 22 when carrying out button operation, drives elasticity bellying 22 downwards.
Be provided with in the inboard of elasticity bellying 22 3 own elasticity bellyings 22 downwards (substrate 12 sides) be the dome-shaped moving contact portion 25 that bloats (25A, 25B, 25C).Moving contact portion 25 by the skirt section 24 (24A, 24B, 24C) of easy elastic deformation and elasticity connects, can be out of shape respectively in elasticity bellying 22.Be provided with the moving contact parallel with substrate 12 at the foot of each moving contact portion 25, these moving contacts are formed by carbon ink conductive materials such as (carbon ink).
In addition, be equipped with the fixed contact portion 17 (17A, 17B, 17C) that is made up of a pair of broach shape electrode (detailed structure is not shown) at the upper surface of substrate 12, the 25A of moving contact portion, 25B, 25C and the 17A of fixed contact portion, 17B, 17C are respectively relatively.
Under non-key-press status, moving contact portion 25 be the 25A of moving contact portion, 25C, 25B from high to low to substrate 12 side-prominent projecting heights.That is to say that the 25A of moving contact portion is nearest apart from substrate 12.Moving contact portion 25 with fixed contact portion 17 facing surfaces be circular.
Each moving contact portion 25 is through becoming connected state respectively with pairing fixed contact portion's 17 butts.Here, moving contact portion 25 is decided by the setting means of above-mentioned projecting height in the order that button goes to be communicated with in the journey, is followed successively by the 25A of moving contact portion, 25C, 25B from the moving contact portion that is communicated with at first.On the other hand, in key travel, be followed successively by the 25B of moving contact portion, 25C, 25A from the moving contact portion of breaking off at first.
The form of the musical sound control of being undertaken by the detection signal of the connection of each moving contact portion 25, disconnection is unqualified.As an example, go in the journey at button, according to the time set key-press rate (velocity) from the connection of the 25C of the moving contact portion that is communicated to of the 25A of moving contact portion, the trigger condition (trigger) of the connection of the 25B of moving contact portion being regarded as sounding.In key travel, according to the time set of the disconnection of the 25C of the moving contact portion that is disconnected to of the 25B of moving contact portion from key speed, the trigger condition of regarding the disconnection of the 25A of moving contact portion as noise elimination.
Here, the relation in the position of fore-and-aft direction, the 25B of moving contact portion is configured in than between its 25A of moving contact portion and the 25C of moving contact portion that is communicated with earlier.Go in the journey when the moving contact portion of player's side is communicated with such structure in the past successively when being employed in button; Because switch body SW integral body is the lengthwise shape; Therefore along with laterally playing key etc. sideling, put on switch body SW midway in the horizontal power of driving, thus switch body SW easy deformation.As a result, the stage of the actual connection of moving contact portion that in the end is communicated with, this moving contact portion sometimes not with fixed contact portion over against, can not with fixed contact portion butt suitably.
But in this embodiment, button goes in the journey the last 25B of moving contact portion that is communicated with to be positioned at the position of middle, thus the 25B of moving contact portion in the front side, the 25A of moving contact portion of rear side, 25C is communicated with and the in stable condition stage is communicated with.Thereby the situation of the 25B of moving contact portion is stable, can with the 17B of fixed contact portion butt suitably.
In addition, the area (with the area of the 17A of fixed contact portion facing surfaces) of the button 25A of moving contact portion that goes in the journey to be communicated with at first is set greater than the area of the 25B of moving contact portion, 25C.Accordingly in skirt section 24, skirt section 24A also designs greatlyyer than skirt section 24B, 24C.The stroke of the 25A of moving contact portion that is communicated with at first is longer, therefore compares with area identical and the short moving contact portion of stroke, tilts in distortion easily midway, and switch motion is unstable easily.But, set the area of the 25A of moving contact portion significantly, have the action of making and stablize such effect.
Adopt this embodiment,, therefore can seek the switch motion stabilization, improve the accuracy of detection of key operation because the 25B of moving contact portion is configured between the 25A of moving contact portion, the 25C.
In addition, because therefore the area of the 25A of moving contact portion that button goes in the journey to be communicated with at first also can seek the switch motion stabilization from this point, the accuracy of detection of raising key operation greater than than the 25B of moving contact portion that is communicated with thereafter, the area of 25C.In addition, about the 25B of moving contact portion that the back is communicated with, 25C, because can must be littler than skirt section 24A with the size design of skirt section 24B, 24C, therefore need not maximize on ground, help the whole miniaturization of switch body SW.
The 2nd embodiment
(c) of Fig. 2, (d) are the longitudinal section and the rear view of the switch body of the 2nd embodiment of the present invention, and be corresponding with the (a) and (b) of Fig. 2.
In the 1st embodiment, the moving contact portion 25 of switch body SW is followed successively by the 25A of moving contact portion, 25C, 25B in the order that button goes to be communicated with in the journey from the moving contact portion that is communicated with at first.With respect to this, in this 2nd embodiment, shown in Fig. 2 (c), be followed successively by the 25B of moving contact portion, 25A, 25C from the moving contact portion that is communicated with at first.Putting in order of fore-and-aft direction is identical with the 1st embodiment.Other structures are identical with the 1st embodiment.
Thereby, the relation in the position of fore-and-aft direction, the 25B of moving contact portion that is communicated with at first is configured in than 25A of moving contact portion that is communicated with thereafter and the position between the 25C of moving contact portion.In addition, about the area of moving contact portion 25, the area of the 25B of moving contact portion that is communicated with at first is greater than than the 25A of moving contact portion that is communicated with thereafter, the area of 25C.Design skirt section 24B bigger accordingly than skirt section 24A, 24C.
Adopt this embodiment,, therefore can go to avoid in the journey balancing the load temporarily to be partial to player's side or rear side at button because the 25B of moving contact portion that is communicated with at first is positioned at the middle.That is, utilize the butt of 25B of moving contact portion and the 17B of fixed contact portion to make button state midway become temporary transient fixing such state, can carry out the switch motion of subsequently moving contact portion 25 and fixed contact portion 17 exactly.Thus, switch motion also is stable when exerting oneself button.In addition, the area of the button 25B of moving contact portion that goes in the journey to be communicated with at first is greater than than the 25A of moving contact portion that is communicated with thereafter, the area of 25C.Therefore, aspect the miniaturization of seeking the stabilization of switch motion, the accuracy of detection that improves key operation and switch body SW integral body, can play the effect identical with the 1st embodiment.
In addition, in above-mentioned the 1st, the 2nd embodiment, illustration moving contact portion 25 be 3 structure.But the quantity of moving contact portion 25 also can be for more than 4.In this case, from the viewpoint of the stabilization of seeking switch motion, go in the journey the last moving contact portion that is communicated with to be configured in button and get final product than the position between at least 2 moving contact portions in its moving contact portion that is communicated with earlier.Perhaps, the moving contact portion that button is gone in the journey to be communicated with at first is configured in than the position between 2 moving contact portions in the moving contact portion that is communicated with thereafter gets final product at least.That is to say, at first or the last moving contact portion that is communicated with neither be equivalent to moving contact portion foremost, the moving contact portion ground configuration that also is not equivalent to rearmost end gets final product.
Here said " between position " be the position of length direction of the shape of switch body SW close fasten between the position.Thereby, the moving contact portion shape that may not be arranged in a straight line.For example, also can stagger along fore-and-aft direction slightly in the position of the key orientation of each moving contact portion, can also the configuration of interleaved shape.
(a)～(e) of Fig. 3 is the configuration mode and the figure that is communicated with order that schematically shows 1 moving contact portion 25 among the switch body SW.Moving contact portion 25 is configured on the straight line along fore-and-aft direction.In these figure, number table is shown in button and goes the order that is communicated with in the journey, size expression moving contact portion 25 and areas pairing fixed contact portion 17 facing surfaces.
For example, in the example shown in (a) of Fig. 3, as the moving contact portion 25 of the 4th last connection between the moving contact portion 25 of the 2nd connection and the 3rd the moving contact portion 25 that is communicated with.In addition, the moving contact portion 25 that also we can say the 4th connection is between the moving contact portion 25 of the 1st connection and the 2nd moving contact portion 25 that is communicated with.In the example shown in (b) of Fig. 3, be positioned between the moving contact portion 25 that the 1st (or the 3rd) be communicated with and the moving contact portion 25 that the 4th (or the 2nd) is communicated with as the moving contact portion 25 of the 5th last connection.
In addition, in the example shown in (c) of Fig. 3, between the moving contact portion 25 that is positioned at the 3rd connection as the moving contact portion 25 of at first the 1st connection and the moving contact portion 25 that the 4th (or the 2nd) is communicated with.In the example shown in (d) of Fig. 3, the moving contact portion 25 of the 1st connection was positioned between the moving contact portion 25 that the 2nd (or the 4th) be communicated with and the moving contact portion 25 that the 3rd (or the 5th) is communicated with.
In the example shown in (e) of Fig. 3, the moving contact portion 25 of the 1st connection is positioned between moving contact portion 25 that the 2nd (or the 4th) be communicated with and the 3rd the moving contact portion 25 that is communicated with.
In addition, in above-mentioned each embodiment, the moving contact portion 25 that is communicated with at first bigger than the area of other moving contact portions 25 with areas fixed contact portion 17 facing surfaces.Also expression like this in the example of Fig. 3 (a)～(e).But shown in Fig. 3 (e), also can design as follows, that is, go the moving contact portion 25 more little of more late connection in the journey with areas pairing fixed contact portion 17 facing surfaces at button.Particularly in the example of Fig. 3 (b)～(e); In the centre of fore-and-aft direction but not the end; Utilize the butt of moving contact portion 25 and fixed contact portion 17 to make button state midway become the state of temporary transient fixing that kind, therefore can carry out the switch motion of subsequently moving contact portion 25 and fixed contact portion 17 exactly.Thereby, even the area of the moving contact portion 25 that the back is communicated with is less, also can guarantee stable action.In addition, owing to make shorter the getting final product of stroke of the moving contact portion 25 of more late connection, so the size in skirt section 24 also can design to Min. with dwindling.Through that kind design, can make switch body miniaturization more, suppress the rapid rising of reacting force that button goes the second half section of journey, also can improve the button sense of touch.
Claims (7)
1. the switch body of an electric keyboard instrument, itself and key are provided with accordingly, are driven by the biasing member that utilizes button operation to carry out displacement, detect the operation of pairing key, and above-mentioned biasing member is key itself or the member that moves with binding, it is characterized in that,
This switch body comprises:
Base portion, it is used to be installed in substrate;
The elasticity bellying, it bloats from said base portion, is driven by above-mentioned biasing member;
A plurality of moving contact portion, it to be flexibly being provided with 3 with the relative mode of fixed contact portion that is configured on the aforesaid substrate at above-mentioned elasticity bellying at least, through becoming connected state respectively with pairing fixed contact portion's butt,
Set above-mentioned a plurality of moving contact portion and go the order that is communicated with in the journey at button,
In the travelling contact portion that button goes in the journey to be communicated with at first is near the travelling contact portion outside player's the travelling contact portion.
2. the switch body of electric keyboard instrument according to claim 1 is characterized in that,
Going in the journey the last travelling contact portion that is communicated with at button is away from the travelling contact portion outside player's the travelling contact portion.
3. the switch body of an electric keyboard instrument, itself and key are provided with accordingly, are driven by the biasing member that utilizes button operation to carry out displacement, detect the operation of pairing key, and above-mentioned biasing member is key itself or the member that moves with binding, it is characterized in that,
This switch body comprises:
Base portion, it is used to be installed in substrate;
The elasticity bellying, it bloats from said base portion, is driven by above-mentioned biasing member;
A plurality of moving contact portion, it to be flexibly being provided with 3 with the relative mode of fixed contact portion that is configured on the aforesaid substrate at above-mentioned elasticity bellying at least, through becoming connected state respectively with pairing fixed contact portion's butt,
Setting above-mentioned a plurality of moving contact portion goes the order that is communicated with in the journey, button to go that the last moving contact portion that is communicated with is configured in than the position between 2 moving contact portions in its moving contact portion that is communicated with earlier at least in the journey at button.
4. the switch body of an electric keyboard instrument, itself and key are provided with accordingly, are driven by the biasing member that utilizes button operation to carry out displacement, detect the operation of pairing key, and above-mentioned biasing member is key itself or the member that moves with binding, it is characterized in that,
This switch body comprises:
Base portion, it is used to be installed in substrate;
The elasticity bellying, it bloats from said base portion, is driven by above-mentioned biasing member;
A plurality of moving contact portion, it to be flexibly being provided with 3 with the relative mode of fixed contact portion that is configured on the aforesaid substrate at above-mentioned elasticity bellying at least, through becoming connected state respectively with pairing fixed contact portion's butt,
Set above-mentioned a plurality of moving contact portion and go the order that is communicated with in the journey at button, the moving contact portion that button goes to be communicated with at first in the journey is configured in than the position between 2 moving contact portions in the moving contact portion that is communicated with thereafter at least.
5. the switch body of an electric keyboard instrument, itself and key are provided with accordingly, are driven by the biasing member that utilizes button operation to carry out displacement, detect the operation of pairing key, and above-mentioned biasing member is key itself or the member that moves with binding, it is characterized in that,
This switch body comprises:
Base portion, it is used to be installed in substrate;
The elasticity bellying, it bloats from said base portion, is driven by above-mentioned biasing member;
A plurality of moving contact portion, it to be flexibly being provided with 3 with the relative mode of fixed contact portion that is configured on the aforesaid substrate at above-mentioned elasticity bellying at least, through becoming connected state respectively with pairing fixed contact portion's butt,
That set that above-mentioned a plurality of moving contact portion goes to moving contact portion that the order that is communicated with in the journey, button go to be communicated with at first in the journey at button and area pairing fixed contact portion facing surfaces are greater than the area than any one and the pairing fixed contact portion facing surfaces in the moving contact portion that is communicated with thereafter.
6. according to the switch body of claim 3 or 4 described electric keyboard instruments, it is characterized in that,
At moving contact portion that button goes in the journey to be communicated with at first and area pairing fixed contact portion facing surfaces greater than area than any one and the pairing fixed contact portion facing surfaces in the moving contact portion that is communicated with thereafter.
7. according to the switch body of claim 5 or 6 described electric keyboard instruments, it is characterized in that,
Button goes the moving contact portion more little with area pairing fixed contact portion facing surfaces of more late connection in the journey.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210483551.9A CN103021392B (en) | 2010-09-09 | 2011-09-09 | The switch body of electric keyboard instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-201697 | 2010-09-09 | ||
| JP2010201697A JP5771924B2 (en) | 2010-09-09 | 2010-09-09 | Electronic keyboard instrument switch body |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210483551.9A Division CN103021392B (en) | 2010-09-09 | 2011-09-09 | The switch body of electric keyboard instrument |
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| CN102402976A true CN102402976A (en) | 2012-04-04 |
| CN102402976B CN102402976B (en) | 2013-12-04 |
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| CN2011102722386A Expired - Fee Related CN102402976B (en) | 2010-09-09 | 2011-09-09 | Switch body of electronic keyboard instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110651320A (en) * | 2017-05-31 | 2020-01-03 | 雅马哈株式会社 | Reaction force generation unit |
| WO2020224204A1 (en) * | 2019-05-07 | 2020-11-12 | 得理电子(上海)有限公司 | Piano key assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7346807B2 (en) * | 2018-10-17 | 2023-09-20 | カシオ計算機株式会社 | Electronic keyboard instruments, methods and programs |
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| JPS57104994A (en) * | 1980-12-22 | 1982-06-30 | Casio Computer Co Ltd | Touch response adder |
| CN86101312A (en) * | 1985-02-12 | 1986-10-22 | 日本乐器制造株式会社 | Keyboard switch apparatus for electronic musical instrument |
| JPH10307584A (en) * | 1997-03-06 | 1998-11-17 | Yamaha Corp | Keyboard device for electronic musical instrument |
| US5883327A (en) * | 1991-12-11 | 1999-03-16 | Yamaha Corporation | Keyboard system for an electric musical instrument in which each key is provided with an independent output to a processor |
| CN1455385A (en) * | 2002-05-03 | 2003-11-12 | 曾平蔚 | Method of generating trill of trembling-key keyboard for electronic musical instrument |
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| JP2643577B2 (en) * | 1990-10-09 | 1997-08-20 | ヤマハ株式会社 | Electronic musical instruments and their input devices |
| JPH04171620A (en) * | 1990-11-05 | 1992-06-18 | Casio Comput Co Ltd | Switch device |
| JP2844408B2 (en) * | 1993-02-22 | 1999-01-06 | ヤマハ 株式会社 | Contact device |
| JP3624786B2 (en) * | 1999-09-24 | 2005-03-02 | ヤマハ株式会社 | Keyboard device |
| JP3711938B2 (en) * | 2002-01-31 | 2005-11-02 | ヤマハ株式会社 | Switch drive mechanism for electronic musical instruments |
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2010
- 2010-09-09 JP JP2010201697A patent/JP5771924B2/en not_active Expired - Fee Related
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2011
- 2011-09-09 CN CN201210483551.9A patent/CN103021392B/en not_active Expired - Fee Related
- 2011-09-09 CN CN2011102722386A patent/CN102402976B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57104994A (en) * | 1980-12-22 | 1982-06-30 | Casio Computer Co Ltd | Touch response adder |
| CN86101312A (en) * | 1985-02-12 | 1986-10-22 | 日本乐器制造株式会社 | Keyboard switch apparatus for electronic musical instrument |
| US5883327A (en) * | 1991-12-11 | 1999-03-16 | Yamaha Corporation | Keyboard system for an electric musical instrument in which each key is provided with an independent output to a processor |
| JPH10307584A (en) * | 1997-03-06 | 1998-11-17 | Yamaha Corp | Keyboard device for electronic musical instrument |
| CN1455385A (en) * | 2002-05-03 | 2003-11-12 | 曾平蔚 | Method of generating trill of trembling-key keyboard for electronic musical instrument |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110651320A (en) * | 2017-05-31 | 2020-01-03 | 雅马哈株式会社 | Reaction force generation unit |
| WO2020224204A1 (en) * | 2019-05-07 | 2020-11-12 | 得理电子(上海)有限公司 | Piano key assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5771924B2 (en) | 2015-09-02 |
| CN103021392A (en) | 2013-04-03 |
| CN103021392B (en) | 2016-01-06 |
| JP2012058500A (en) | 2012-03-22 |
| CN102402976B (en) | 2013-12-04 |
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