CN101847402B - Sliding keyboard cover mechanism - Google Patents
Sliding keyboard cover mechanism Download PDFInfo
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- CN101847402B CN101847402B CN 201010138940 CN201010138940A CN101847402B CN 101847402 B CN101847402 B CN 101847402B CN 201010138940 CN201010138940 CN 201010138940 CN 201010138940 A CN201010138940 A CN 201010138940A CN 101847402 B CN101847402 B CN 101847402B
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Abstract
The invention provides a sliding keyboard cover mechanism, which employs a structure in which one part of a keyboard cover is descended into the rear portion of a musical instrument body without complex apparatus, and can effectively open the cover slowly. The sliding keyboard cover mechanism comprises a first guiding part and a second guiding part used for guiding a front cover and a rear cover which are connected to be opened and closed, the keyboard cover comprises a front support part arranged at the front of the front cover and guided by the first guiding part, a middle support part arranged at the rear of the front cover or the front of the rear cover and guided by the first guiding part, and a rear support part arranged at the rear of the rear cover and guided by the second guiding part. The second guiding part has a descending part aslant descending backwards correspondingly to an opening terminal part of the keyboard cover. The first guiding part has ascending parts inclined backwards, the ascending starting point of at least one ascending part is arranged to be corresponding to the descending initial stage position of the descending part.
Description
Technical field
The present invention relates to the sliding keyboard cover mechanism of the keyboard instruments such as a kind of pianotron, electronic accordion.
In this specification and claims book, with in keyboard instrument and the cover of keyboard apart from the near side of player as the place ahead, a side far away is as the rear.
Background technology
As the slip lid of the keyboard of overlay electronic keyboard instrument, it is all to be made of sheet material of one mostly, is perhaps connected in hinged way on fore-and-aft direction by a plurality of elongated sheet materials and consists of.The sheet material that is integrated owing to the former has feeling of high class, but then, need to be used in the space that depth direction is taken in cover of keyboard when uncapping, so the size of the fore-and-aft direction of musical instrument body becomes greatly.In the latter case, because can when uncapping, make the cover of keyboard warpage and move to the lower rear of musical instrument body, thus can dwindle the size of the fore-and-aft direction of musical instrument body, but the elongated sheet material that connects easily causes being short of feeling of high class.
On the other hand, in order to have both as the feeling of high class of keyboard instrument and the minimizing of front and back size, and a kind of slip lid with following structure is disclosed, namely, slip lid is divided into two parts of protecgulum and bonnet, closing when covering by two cap overlay keyboard sections, when uncapping the guiding bonnet rearward mobile in and drop to the lower rear place of musical instrument body.For example, the switching mechanism of the represented cover of keyboard of patent documentation 1 has following structure: the protecgulum that is connected by flexible ground in hinged way and bonnet and consist of slip lid; Slip lid by the protecgulum guide member that is arranged on the musical instrument case both sides and pinion wheel guiding tooth bar, guides respectively to be arranged on the axial region on the protecgulum and to be arranged on pinion wheel on the bonnet when on-off action.And tooth bar descends rearward to be circular-arc mode, and the bottom forms almost vertical configuration.When opening slip lid, with the common rearward mobile bonnet of protecgulum, by the tooth bar guiding and move, and be the state of vertical decline at the rear portion of musical instrument case.Therefore, under the state of uncapping, the size of the fore-and-aft direction of the slip lid of warpage shortens, and also can dwindle thus the size of the fore-and-aft direction of musical instrument case.
The prior art document
Patent documentation
Patent documentation 1 TOHKEMY 2007-102045 communique
Summary of the invention
Invent problem to be solved
But, dropping in the mechanism at musical instrument case rear portion at the guiding bonnet shown in patent documentation 1, because the weight of bonnet has been accelerated the speed that descends, cover of keyboard will become quickish speed when opening fully or approaching when opening fully.Although be provided with block in order to prevent above-mentioned action, need the padded coaming that relaxes for the impact to this block.
But because the padded coaming by relax impacting only, the acceleration when bonnet is descended is restricted, so with the danger of clamping finger etc. between the slip lid that has increased translational speed and musical instrument case.On the other hand, in patent documentation 1, record the technology that is limited the rapid decline of bonnet in order to process described problem by spring force.Being configured to of this kind purpose arranges the swing arm by the coil spring brake rotary in musical instrument case, bonnet is connected in the top ends of swing arm, therefore for needing the complex structure of regulating spring power.In addition, need to prevent that the cover of keyboard bounce-back of bearing spring force from producing unnecessary rocking.From this viewpoint, device also becomes very complicated.
Purpose of the present invention is for providing a kind of sliding closure structure, and to solve the problem of described prior art, it adopts the structure that the part of cover of keyboard is dropped to the musical instrument body rear portion, and can not make device complicated just can effectively make uncap the action become slow.
Be used for solving the means of problem
In order to achieve the above object, the present invention can provide a kind of sliding closure structure, and described sliding closure structure comprises: cover of keyboard, and it has protecgulum 31 and the bonnet 32 that connects with the mode section of being connected that can warpage; Guide portion 50, it is arranged on the inside sidewalls of musical instrument case 10, be used for opening and closing and support freely cover of keyboard 30 and guiding on-off action, described sliding closure structure is closing when covering by above-mentioned cover of keyboard 30 overlay keyboard sections, when uncapping, guide above-mentioned bonnet 32 to drop to lower rear, it is characterized in that, guide sections 50 comprises: the first guide portion 51, its be arranged on the sidewall of above-mentioned musical instrument case 10 and have at least one in front and back upwardly extending guide rail; The second guide portion 52, the centre position of its fore-and-aft direction from above-mentioned musical instrument case 10 sidewalls extends to the rear.Above-mentioned cover of keyboard 30 comprises: anterior support 311, and it is arranged on the anterior of above-mentioned protecgulum 31 and is guided by above-mentioned the first guide portion 51; Intermediate support 312, it is arranged on the anterior of the rear portion of above-mentioned protecgulum 31 or bonnet 32 and by 51 guiding of above-mentioned the first guide portion; Rear support section 320, it is arranged on the rear portion of above-mentioned bonnet 32 and is guided by above-mentioned the second guide portion 52.Be formed with falling portion 523 in described the second guide portion 52, guide accordingly the position of described rear support section 320 as the actuating range with the open terminal part of described cover of keyboard 30, described falling portion 523 is inclined to along with rearward mobile and descend.Described the first guide portion 51 has at least one riser portions 515,516, guide accordingly the position of described anterior support 311 or intermediate support 312 as the designation range with at least a portion of described falling portion 523, described riser portions 515,516 is along with rearward mobile and tilt upward with the angle greater than other positions in this first guide portion 51.This riser portions 515,516 at least one, its point of climb is arranged on the position corresponding with the decline initial position of described falling portion 523.
In first described sliding closure structure, the guide portion that is used for the switching of guiding cover of keyboard has: the first guide portion and the second guide portion, the first guide portion has at least one guide rail, described guide rail is used for the anterior support of guiding protecgulum and the intermediate support of protecgulum or bonnet, be formed with falling portion in the second guide portion, guide accordingly the position of described rear support section as the actuating range with the open terminal part of described cover of keyboard, described falling portion is inclined to along with rearward mobile and descend.Therefore, bonnet is directed to falling portion when uncapping, and moves to the lower rear of musical instrument case.
When bonnet drops to falling portion, if only have bonnet then cause accelerating because of its weight, but bonnet is connected with protecgulum, and for the first guide portion that guides protecgulum, corresponding with the designation range of at least a portion of falling portion, have at least one riser portions at the position of the anterior support of guiding or intermediate support.Therefore, the acceleration when bonnet descends offsets or becomes mitigation by the riser portions needed power that rises with making protecgulum.
Particularly, because at least one riser portions is provided with point of climb in the position corresponding with the decline initial position of falling portion, on the position that begins to accelerate downwards when therefore only having bonnet, owing to braking action is brought into play in the rising of protecgulum, thereby effectively suppress the increase of decline rate.Its result is when descending at the rear portion that makes cover of keyboard, not need braking also can suppress decline rate with spring, and make the action of uncapping become slow.
Such as second described above-mentioned sliding closure structure, described riser portions 515,516 is arranged on respectively guiding on the position of described anterior support 311 in described the first guide portion 51 and intermediate support 312, at least a portion designation range with the described falling portion of correspondence, and the point of climb of at least one riser portions in the described riser portions 515,516 is arranged on the position corresponding with the decline initial position of described falling portion 523.Like this, by with described riser portions, be arranged on respectively guiding on the position of anterior support in the first guide portion and intermediate support, and the rising by anterior support and intermediate support, the situation that only is arranged on any one party with riser portions is compared, the acceleration of the bonnet in the time of more effectively suppressing the rear support subordinate and be down to falling portion.
Such as the 3rd described above-mentioned sliding closure structure, riser portions 515,516 is arranged on respectively guiding on the position of above-mentioned anterior support 311 in above-mentioned the first guide portion 51 and intermediate support 312, in described riser portions 515,516, can be with a side's wherein riser portions 515,516 point of climb, be arranged on the position corresponding with the decline initial position of described falling portion 523, and can with the opposing party's riser portions 515,516 point of climb, be arranged on corresponding on the position from this point of climb to the rising side shifting.In this way, when rear support section begins to drop to falling portion, owing to bringing into play braking action by a described side's riser portions, when carrying out, decline further increased braking action by described the opposing party's riser portions, so can more effectively suppress the rising of the decline rate of bonnet.
Such as the 4th described above-mentioned sliding closure structure, its falling portion has the inclination of certain angle on the part of decline side certainly the initial position that descends.Thus, rear support section acts on the power of cover of keyboard at gravity direction when this part moves almost constant, thereby can bring into play reliably braking action according to described riser portions.
In addition, the present invention can provide a kind of sliding closure structure, comprising: cover of keyboard has the protecgulum and the bonnet that connect with the mode section of being connected that can warpage; Guide portion, it is arranged on the inside sidewalls of musical instrument case, be used for to open and close and to support freely cover of keyboard and to guide on-off action, described sliding closure structure guides, thereby is closing when covering by described cover of keyboard overlay keyboard section, and when uncapping, make described bonnet drop to lower rear by described connecting portion warpage, it is characterized in that, described guide portion comprises: the first guide portion, it is formed on the side wall inner surfaces of described musical instrument case as groove, and extends along fore-and-aft direction; The second guide portion, the centre position of its fore-and-aft direction from described musical instrument case sidewall extends to the rear.Described cover of keyboard comprises: anterior support, and it is from the front portion of described protecgulum to two side-prominent, and is engaged to the groove of described the first guide portion and is directed; Intermediate support, its from the rear portion of described protecgulum or the front portion of bonnet to two side-prominent, and be engaged to the groove of described the first guide portion and be directed; Rear support section, it is arranged on the rear portion of described bonnet and is guided by described the second guide portion.Be formed with falling portion in described the second guide portion, guide accordingly the position of described rear support section as the actuating range with the open terminal part of described cover of keyboard, described falling portion is inclined to along with rearward mobile and descend.Described the first guide portion is, from the starting end of the on-off action scope of cover of keyboard to terminal, and at least one guide rail that described anterior support and intermediate support are guided.
The invention effect
As mentioned above, according to the present invention, can provide a kind of sliding closure structure, it has adopted a part that makes cover of keyboard to drop to the structure at musical instrument body rear portion, and can not make device complicated just can effectively make uncap the action become slow.
Description of drawings
Fig. 1 is to have the lateral longitudinal cut-open view of the electric keyboard instrument of sliding closure structure in one embodiment of the present invention.
Fig. 2 is the stereographic map of the critical piece of the electric keyboard instrument shown in the presentation graphs 1 under the state of removing cover of keyboard.
Fig. 3 is to be used for the upward view of the cover of keyboard of sliding closure structure shown in Figure 1.
Fig. 4 is the side view of the cover of keyboard of Fig. 3.
Fig. 5 is the key diagram of the funtion part of the guide portion in electric keyboard instrument shown in Figure 1.
Fig. 6 is the schematic diagram of a step of the action of uncapping in the electric keyboard instrument shown in Figure 1.
Fig. 7 is the schematic diagram of the next step of the action of uncapping in the electric keyboard instrument shown in Figure 1.
Fig. 8 is to represent the schematic diagram under the whole open modes of slip lid in the electric keyboard instrument shown in Figure 1.
Fig. 9 is to have the lateral longitudinal cut-open view of the electric keyboard instrument of the sliding closure structure that relates to other embodiments of the present invention.
Figure 10 (a), (b), (c) are by the section of the a-a line in Fig. 9, b-b line, c-c line, to come the center to represent the cut-open view of guide portion respectively.Figure 10 (d) is the stereographic map of expression by a part of support of guide portion guiding.
Symbol description
1: musical instrument body
10: musical instrument case
11: side plate
20: key board unit
30: cover of keyboard
31: protecgulum
32: bonnet
33: hinge (connecting portion)
50: guide portion
51: the first guide portion
52: the second guide portion
51a: forward track
51b: back track
311: anterior support
312: intermediate support
320: rear support section
515: the first riser portions
516: the second riser portions
523: falling portion
Embodiment
Referring to accompanying drawing embodiments of the present invention are described.For the part of the same or identical type in the accompanying drawing, indicate identical symbol and omit part explanation.
Fig. 1 is to have the lateral longitudinal cut-open view of the electric keyboard instrument of sliding closure structure in one embodiment of the present invention.Fig. 2 is the stereographic map of the critical piece of expression sliding closure structure under the state of removing cover of keyboard.
This electric keyboard instrument comprises: musical instrument body 1 is equipped with the control part 40, loudspeaker (omitting diagram) of key board unit 20, cover of keyboard 30, control pronunciation etc. etc. in its musical instrument case 10; Foot 2 is used for this musical instrument body of supporting.Musical instrument case 10 comprises: pair of side plates 11, respectively at the backboard 15 at the top board 13 on the dividing plate 12 of the bottom of extending between the side plate, top, anterior lock a door shelves 14, rear portion, the music stand 16 that can rise and fall is installed on top board.Key board unit 20 comprises: by rotating white key 21 and the black key 22 of dividing plate 12 supportings, and according to pressing key to send the control parameter from bonded state.Control part 40 for the treatment of the control parameter that sends from the sound equipment set parts 41 such as the panel that is configured in the keyboard rear and key board unit 20, thereby sends the generation control signal of musical sound, and loudspeaker sends musical sound according to described signal.
Fig. 3 and Fig. 4 represent cover of keyboard 30, and Fig. 3 is upward view, and Fig. 4 is side view.Cover of keyboard 30 is split into protecgulum 31 and bonnet 32, and protecgulum 31 and bonnet 32 be by being arranged on the hinge 33 as connecting portion of the back side one side, and connects in the mode of flexible.The leading section of protecgulum 31 is fixing by metal sagging plate 310, and this metal sagging plate 310 is used in the place ahead of closing overlay keyboard when covering.Rearward end at bonnet 32 is fixed with riser 325, and this riser 325 is positioned at upwardly extending position closing when covering, and the gap between covering and the top board 13.By the sliding closure structure of following explanation cover of keyboard 30 is installed on the musical instrument case.
Sliding closure structure has cover of keyboard 30 and guide portion 50, cover of keyboard 30, and its on-off action is directed by guide portion 50, thereby is closing overlay keyboard section when covering, and bonnet 32 descends and mobile to lower rear when uncapping.Guide portion 50 comprises: the first guide portion 51, and it is arranged on the musical instrument case side plate 11 and along fore-and-aft direction and extends; The second guide portion 52, the centre position of its fore-and-aft direction from musical instrument case side plate 11 extends to the rear.
In this embodiment, the first guide portion 51 is embedded in the groove that is arranged on the side plate 11 by the resinous strip material that will have cubic U font section, thereby forms the guide rail of a flute profile, and this guide rail extends along fore-and-aft direction at the inside surface of side plate 11.
The second guide portion 52 comprises: the tooth bar 520 that has tooth in the above; Installing plate 521, it is fixed on the side of this tooth bar; Guiding groove 525, it is formed on the side plate 11 and extends along the upper surface of tooth bar 520, and installing plate 521 is fixed on the side plate 11 to be screwed in the mode of side plate 11 by bolt.
As shown in Figures 3 and 4, on protecgulum 31, be provided with from leading section to the side two side-prominent anterior supports 311 and from rearward end to two side directions outstanding intermediate support 312.Be provided with rear support section 320 at bonnet 32.Anterior support 311 is made of the pin on sagging plate 310 both side ends that are fixed on protecgulum 31 leading sections, and intermediate support 312 is formed by pin 312a, and this pin 312a is installed in by carriage 312b below the rearward end of protecgulum 31.
Such as Fig. 1 and Fig. 6～shown in Figure 8, guide portion 50 is set as the state that can carry out the on-off action of cover of keyboard 30.Be explained hereinafter with reference to Fig. 5.
The front portion of the tooth bar 520 of the second guide portion 52 is leading portion height maintaining part 522, this leading portion height maintaining part 522 with from front end rearward gently dipping mode extend.Cover of keyboard 30 when opening, will arrive the position of more leaning on the rear than position shown in Figure 6, namely arrives the actuating range of open terminal part.Corresponding with this actuating range, the position that is used for guiding rear support section 320 in the second guide portion 52 is falling portion 523, and described falling portion 523 is arcuation along with rearward moving and tilts to descend.
Because following reason, thereby be preferably, falling portion 523 is arranged on the position corresponding to the open terminal part of cover of keyboard 30.If bonnet 32 rear portions originate in the starting position of falling portion 523 by the decline of falling portion 523, described starting position is the commitment from the open process of cover of keyboard, be to rise in the stage that the front end of bonnet 32 retreats to the below of top board 13 front ends, in the time of then with this decline, players etc. just can see the inside of musical instrument body 1, thereby diminish outward appearance.Therefore, be preferably, falling portion 523 is set to, and is corresponding with the moving process after the front end of bonnet 32 arrives top board 13 belows.In addition, consider player's etc. the sight line from oblique upper, then be preferably, corresponding to the front end at bonnet 32 arrive top board 13 below the time, moving process behind the position that further rearward moves to the distance that equates with the gap of bonnet 32 and top board 13 arranges falling portion 523.
On the other hand, if the starting point of falling portion 523 too is positioned at rear place, then the inclination of falling portion 523 will be too precipitous, and the weight of bonnet 32 will grow to the downward pulling force of cover of keyboard 30, and the increase of decline rate easily occurs.According to the size of the fore-and-aft direction of bonnet, weight, dropping distance etc., and the pitch angle of regulation falling portion.From these viewpoints, be preferably, the starting point of the falling portion in the process of uncapping is positioned on the open terminal part of cover of keyboard 30 and the position that the pitch angle can not become too precipitous.
In this embodiment, the starting point of falling portion 523, be positioned at the open terminal part of cover of keyboard 30, and slippage is more than the place of rearward amount of movement, namely the pitch angle of the second guide portion (angle that the tangent line of the second guide portion becomes with horizontal line) is greater than 45 ° places.
In addition, as shown in Figure 5, the inclination of falling portion 523 is, the anterior 523a that descends from leading portion height maintaining part 522 just becomes precipitous gradually, but the decline rear portion 523b inclination at an angle at its rear.
On the first guide portion 51, the upper end of the erection part 510 of extending upward from shelves 14 the upper end of locking a door, extend and be provided with the height maintaining part, local at these height maintaining part two places midway, be provided with the riser portions that more tilts to rise, described height maintaining part is all extended in horizontal direction or is risen gently along with rearward moving.Namely the height maintaining part is made of the first height maintaining part 511, the second height maintaining part 512 and third high degree maintaining part 513, and described the first height maintaining part 511 is positioned at the upper end of erection part 510 and rearward rises gently; Described the second height maintaining part 512 is positioned at pars intermedia and is almost horizontality; Described third high degree maintaining part 513 is positioned at the rear portion and is almost horizontality.And the first riser portions 515 is between the first height maintaining part 511 and the second height maintaining part 512, and the second riser portions 516 is between the second height maintaining part 512 and third high degree maintaining part 513.
With the point of climb 515a of the first riser portions 515, be arranged on the position consistent with the starting point of the anterior 523a of the decline of falling portion 523.Namely the first riser portions 515 is set to, and when being positioned at the starting point of the anterior 523a that descends in rear support section 320 (pinion wheel 322), anterior support 311 is positioned at the point of climb 515a place of the first riser portions 515.
With the point of climb 516a of the second riser portions 516, be arranged on the position consistent with the starting point of the decline rear portion 523b of falling portion 523.Namely the second riser portions 516 is set to, and when being positioned at the starting point of decline rear portion 523b in rear support section 320 (pinion wheel 322), intermediate support 312 is positioned at the point of climb 516a place of the second riser portions 516.Consider the braking action that descends for bonnet 32 and avoid protecgulum 31 and top board 13 between collision, decide pitch angle and the length of described the first riser portions 515 and the second riser portions 516.
In the first guide portion 51 and the second guide portion 52, be communicated with respectively the pod 111,112 that extends from the upper surface of side plate 11 downwards.When the assembling musical instrument body, the pin of anterior support 311 and intermediate support 312 is by pod 111, and the axial region 324 of rear support section 320 is directed to respectively in the first guide portion 51 and the second guide portion 52 by pod 112.
Secondly, the effect for the sliding closure structure that relates to described embodiment describes.From Fig. 1 close the state of lid in the situation of opening cover of keyboard, along with the open state that carries out, following variation will occur with respect to the position of guide portion 50 in each support, guide portion can be brought into play in necessary function of each stage.
(1) cover of keyboard be positioned at open initial～state of Fig. 1～Fig. 6 in centre position
The leading portion height maintaining part 522 of 320: the second guide portion 52 of rear support section
The first riser portions 515～the second height maintaining parts 512 of 312: the first guide portion 51 of intermediate support
[function of guide portion] since rear support section 320 move to leading portion height maintaining part 522 places, so the slippage of bonnet 32 only for do not need on a small quantity the braking, each guide portion will rearward guide cover of keyboard.
(2) cover of keyboard is positioned at the state of the Fig. 6 that opens final starting point
The starting point of the anterior 523a of decline of 320: the second guide portion 52 of rear support section
The starting point of the first riser portions 515 of 311: the first guide portion 51 of anterior support
The second height maintaining part 512 of 312: the first guide portion 51 of intermediate support
[function of guide portion] rear support section 320 arrives the starting point of the anterior 523a (falling portion 523) that descend, if there is not braking action, the decline of the bonnet 32 after then will be accelerated.But because anterior support 311 is positioned at the starting point of the first riser portions 515, the front portion of protecgulum 31 begins to promote, thus suppressed the acceleration of bonnet 32, and relaxed the increase of translational speed.
(3) cover of keyboard is positioned at the state of later half Fig. 7 of open terminal part
The starting point of the decline rear portion 523b of 320: the second guide portion 52 of rear support section
The second height maintaining part 512 of 311: the first guide portion 51 of anterior support
The starting point of the second riser portions 516 of 312: the first guide portion 51 of intermediate support
[function of guide portion] rear support section 320 arrives the starting point of decline rear portion 523b, because the pitch angle of guide portion becomes more precipitous, if therefore there is not braking action, the decline of the bonnet 32 after then will be accelerated.But intermediate support 312 is positioned at the starting point of the second riser portions 516, thereby the rear portion of protecgulum 31 begins to promote.Therefore, suppress the acceleration of bonnet 32 owing to the rising of protecgulum 31, thereby relaxed the increase of translational speed.
(4) when cover of keyboard is fully open (state of Fig. 8)
The bottom of the falling portion 523 of 320: the second guide portion 52 of rear support section
The second height maintaining part 512 of 311: the first guide portion 51 of anterior support
The terminal of the third high degree maintaining part 513 of 312: the first guide portion 51 of intermediate support
The terminal butt of [function of guide portion] intermediate support 312 and third high degree maintaining part 513.Thus, protecgulum 31 and bonnet 32 together stop to move with anterior support 311 and rear support section 320, thereby become full-gear.
As mentioned above, according to described sliding closure structure, when uncapping, will guide bonnet 32 to falling portion 523, and make bonnet 32 move to the lower rear of musical instrument case 10.And, when bonnet 32 drops to falling portion 523, because arrive the starting point of the anterior 523a that descends with rear support section 320 corresponding, anterior support 311 will arrive the starting point of the first riser portions 515, and the starting point that arrives decline rear portion 523b with rear support section 320 is corresponding, intermediate support 312 will arrive the starting point of the second riser portions 516, so be about to the opportunity of acceleration in the decline that does not have braking and bonnet 32, because the rising of protecgulum 31 forms braking action, thereby effectively suppressed the increase of translational speed.Its result is, do not need the equipment etc. with retarding spring and can not make device complicated, just can suppress the decline rate of bonnet 32, and can make the translational speed when opening cover of keyboard 30 become slow.Here it is reduces the effect that obtains after the size of fore-and-aft direction of musical instrument body 1 by falling portion 523.
In addition, in order to obtain described effect, can be with the point of climb of at least any one party in two riser portions 515,516, be arranged on the position corresponding with the decline initial position of falling portion 523, perhaps also both point of climbs of riser portions can be arranged on the position corresponding with the decline initial position of falling portion 523.In addition, in the less situation of the needed damping force of the decline of bonnet 32, also riser portions can be made as one, and with anterior support 311 and intermediate support 312 in the corresponding setting of any one party.
When close key disk cover 30, carry out action contrary to the above.Namely, in order to close lid, and need to make forwards mobile and lifting bonnet 32 of cover of keyboard 30, but because in the way that rear support section 320 is risen, intermediate support 312 drops to the second riser portions 516, then anterior support 311 drops to the first riser portions 515, so alleviated the needed power of each lifting.Therefore, close the lid needed power also very little.
In addition, in said embodiment, because be fixed with riser 325 in the rearward end of bonnet 32, fall in the musical instrument case so can prevent the article such as stationery that are placed on the cover of keyboard 30.Cover of keyboard, the connecting portion between protecgulum 31 and bonnet 32 that has as shown in Figure 1 is the situation of concavity, also has than illustrated connecting portion more near the situation of level.Therefore, become sometimes the article such as pencil, pen, rubber are placed on state on the cover of keyboard.If open cover of keyboard under this state, the article of then placing might rearward move, and fall and drop to the musical instrument case from the cover of keyboard that tilts.For this situation, in said embodiment, because be fixed with riser 325 in the rearward end of bonnet 32, will be blocked by riser 325 so when uncapping, fall the article of cover of keyboard rearward end.Therefore, closing when covering, article will together return with the cover of keyboard of closing under the state that is held in riser 325.Thus, prevented that article from falling in the musical instrument case.
In the above-described embodiment, although intermediate support 312 is arranged on the rearward end of protecgulum 31, also can be arranged on the leading section of bonnet 32.In this case, because protecgulum 31 rearward end are connected by hinge 33 (connecting portion) with bonnet 32 leading sections, so also can obtain almost same action.But if intermediate support 312 is arranged on than the front end of bonnet 32 rearward position more, then when descending along with uncap action and the rearward end of bonnet 32, bonnet 32 will rotate centered by middle support sector 312, and the leading section of bonnet 32 will rise.According to its ascending amount, sometimes have the front end of bonnet 32 and the situation of top board 13 collisions.Therefore, intermediate support 312 is arranged on the rearward end of protecgulum 31, can more easily avoids this collision.Perhaps can also make hinge 33 the axial rotary cover of keyboard about outstanding, and be inserted in the groove of the first guide portion 51, also can be with described outshot as intermediate support.In this case, the turning axle of hinge has the intensity as the support performance function of guiding usefulness.Which kind of situation no matter, anterior support 311 and intermediate support 312 by embedding the roller that rotates freely from protecgulum 31 or bonnet 32 outstanding axles, thereby can make mobile more smooth.
In addition, in the above-described embodiment, be used for guiding the first guide portion 51 of anterior support 311 and intermediate support 312 to be formed by a guide rail.Like this, by consisting of the first guide portion 51 with a guide rail, thereby the structure of sliding closure structure is become simply, can guarantee necessary size and obtain higher permanance etc., and be easy to be applied in the limited space in the musical instrument case.
But the present invention is not limited to this, also can guide rail be set separately for each support, forms the first guide portion 51 by many guide rails.And, also can adopt to make the part of guide rail common, be divided into halfway many guide rails.Fig. 9 is that expression has the example of the sliding closure structure of the first guide portion 51 that is made of many guide rails.Figure 10 is the cut-open view of the critical piece of described sliding closure structure, and Figure 10 (a), (b), (c) respectively center represent along the guide portion in the section of the a-a line among Fig. 9, b-b line, c-c line.
In described example, the forward track 51a that is used for anterior support 311 is formed by wider shallow slot, and the back track 51b that is used for intermediate support 312 is formed by narrower deep trouth, and the part of these guide rails is extended at same center line.And corresponding with the shape of these grooves as shown in figure 10, the diameter of anterior support 311 is wide and short, and the diameter of intermediate support 312 is carefully grown.As shown in Figure 9, forward track 51a extends from front end along the track identical with the first guide portion 51 of embodiment shown in Figure 1, and terminates on the position just over the c-c line of Fig. 9.On the other hand, back track 51b is from beginning than the a-a line position more on the front the forward track 51a a little, after overlapping with forward track 51a and extending, by on the position of a-a line, more reducing ascending amount than forward track 51a, thereby extend on the position of separating with forward track 51a.And back track 51b again overlaps with forward track 51a near the position of c-c line and extends, and after surpassing the terminal of forward track 51a, back track 51b extends until terminal in the position identical with the first guide portion 51 of Fig. 1 separately.
As described below carrying out by this first guide portion 51 guiding cover of keyboards 30.Under the state of close key disk cover 30, to take and identical position shown in Figure 1, anterior support 311 is positioned at the front end (lock a door shelves 14 directly over) of forward track 51a, and intermediate support 312 is arranged in the position shown in the b-b line of back track 51b.If open cover of keyboard 30 under this state, then anterior support 311 and intermediate support 312 are rearward mobile, and rear support section 320 moves in the mode identical with the embodiment of Fig. 1.At this moment, the first riser portions 515 of forward track 51a can not be passed through by rear support section 320, but is also risen to gently the position of c-c line by back track 51b guiding.In the embodiment of Fig. 1, at the initial stage of uncapping action, need the to a certain degree power of size in order to make rear support section 320 rise to the first riser portions 515, but do not need in the present embodiment.
After rear support section 320 arrives falling portion 523, identical with the embodiment of Fig. 1, by the first riser portions 515 of forward track 51a and the second riser portions 516 of back track 51b, thereby suppress the acceleration of bonnet 32, and relaxed the increase of translational speed.
Like this, by being consisted of the first guide portion 51 by many guide rails, the more meticulously action of setting key disk cover 30, and can obtain more smoothly on-off action.In addition, even the forward track 51a of flute profile and the place that back track 51b reports to the leadship after accomplishing a task when observing from the groove depth direction, because the degree of depth of each guide rail and the anterior support 311 that inserts wherein are different with the length of rear support section 320, so can't hinder movement because of the cell wall at the place of reporting to the leadship after accomplishing a task.But, by will be at the mobile anterior support 311 of the forward track 51a of shallow slot, make section shown in Figure 10 (d) long oval-shaped pin on moving direction D51a, thereby can more waltz through the place of reporting to the leadship after accomplishing a task with back track 51b.
Above embodiments of the present invention are illustrated, but the present invention is not limited to this, and the numerous variations mode can be arranged.
For example, the second guide portion 52 and rear support section 320 can be made, the channled rail identical with the first guide portion 51 and the pin that engages with it replace rack-and-pinion.In this case, the synchronization action about cover of keyboard that causes although can not obtain utilizing tooth bar and pinion wheel, owing to improved the guidance accuracy etc. of on-off action, thereby can prevent that cover of keyboard vibrates to the left and right when opening and closing.
In the above-described embodiment, although during standard-sized sheet cover of keyboard to stop be to obtain by the intermediate support 312 terminal butt with third high degree maintaining part 513, but replace this mode, the terminal butt by rear support section 320 and falling portion 523 also can obtain same effect.In addition, also block can be set separately, described block be used for stopping and with arbitrary part butt or the locking of cover of keyboard.
Claims (5)
1. sliding keyboard cover mechanism comprises: cover of keyboard has the protecgulum and the bonnet that connect with the mode section of being connected that can warpage; Guide portion, it is arranged on the inside sidewalls of musical instrument case, is used for opening and closing supporting freely cover of keyboard and guiding on-off action, described sliding keyboard cover mechanism is closing when covering by described cover of keyboard overlay keyboard section, and when uncapping, guide described bonnet to drop to lower rear, it is characterized in that
Described guide portion comprises: the first guide portion, it is arranged on described musical instrument case sidewall, and have at least one in front and back upwardly extending guide rail; The second guide portion, the centre position on its fore-and-aft direction from described musical instrument case sidewall extends to the rear,
Described cover of keyboard comprises: anterior support, and it is arranged on the anterior of described protecgulum and is guided by described the first guide portion; Intermediate support, it is arranged on the rear portion of described protecgulum or the front portion of bonnet, and by described the first guide portion guiding; Rear support section, it is arranged on the rear portion of described bonnet and is guided by described the second guide portion,
Be formed with falling portion in described the second guide portion, guide accordingly the position of described rear support section as the actuating range with the open terminal part of described cover of keyboard, described falling portion is inclined to along with rearward mobile and descend,
Described the first guide portion has at least one riser portions, guide accordingly the position of described anterior support or intermediate support as the designation range with at least a portion of described falling portion, described riser portions tilts with the angle greater than other positions in this first guide portion upward along with rearward moving
In this riser portions at least one, its point of climb are arranged on the position corresponding with the decline initial position of described falling portion.
2. sliding keyboard cover mechanism according to claim 1 is characterized in that,
Described riser portions is arranged on respectively guiding on the position of described anterior support in described the first guide portion and intermediate support, at least a portion designation range with the described falling portion of correspondence, and the point of climb of at least one riser portions in the described riser portions is arranged on the position corresponding with the decline initial position of described falling portion.
3. sliding keyboard cover mechanism according to claim 2 is characterized in that,
Be arranged on respectively guiding in the riser portions on the position of the described anterior support of described the first guide portion and intermediate support, the point of climb of a riser portions is arranged on the position corresponding with the decline initial position of described falling portion, and the point of climb of another riser portions is arranged on the position from from this point of climb to the rising side shifting.
4. the described sliding keyboard cover mechanism of any one in 3 according to claim 1 is characterized in that, described falling portion is at the predetermined angular that tilts of the part from the decline initial position to the decline side.
5. sliding keyboard cover mechanism comprises: cover of keyboard has the protecgulum and the bonnet that connect with the mode section of being connected that can warpage; Guide portion, it is arranged on the inside sidewalls of musical instrument case, be used for opening and closing and support freely cover of keyboard and guide on-off action, described sliding keyboard cover mechanism guides, thereby closing when covering by described cover of keyboard overlay keyboard section, and when uncapping, make described bonnet drop to lower rear by described connecting portion warpage, it is characterized in that
Described guide portion comprises: the first guide portion, and it is formed on the side wall inner surfaces of described musical instrument case as groove, and extends along fore-and-aft direction; The second guide portion, the centre position of its fore-and-aft direction from described musical instrument case sidewall extends to the rear,
Described cover of keyboard comprises: anterior support, and it is from the front portion of described protecgulum to two side-prominent, and is engaged to the groove of described the first guide portion and is directed; Intermediate support, its from the rear portion of described protecgulum or the front portion of bonnet to two side-prominent, and be engaged to the groove of described the first guide portion and be directed; Rear support section, it is arranged on the rear portion of described bonnet and is guided by described the second guide portion,
Be formed with falling portion in described the second guide portion, guide accordingly the position of described rear support section as the actuating range with the open terminal part of described cover of keyboard, described falling portion is inclined to along with rearward mobile and descend,
Described the first guide portion is, from the starting end of the on-off action scope of cover of keyboard to terminal, and at least one guide rail that described anterior support and intermediate support are guided.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009070176A JP5293957B2 (en) | 2009-03-23 | 2009-03-23 | Slide keyboard lid mechanism |
| JP2009-070166 | 2009-03-23 | ||
| JP2009070166A JP5229632B2 (en) | 2009-03-23 | 2009-03-23 | Slide keyboard lid mechanism |
| JP2009-070176 | 2009-03-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101847402A CN101847402A (en) | 2010-09-29 |
| CN101847402B true CN101847402B (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010138940 Active CN101847402B (en) | 2009-03-23 | 2010-03-22 | Sliding keyboard cover mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101847402B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012145727A (en) * | 2011-01-12 | 2012-08-02 | Roland Corp | Lid body structure for keyboard instrument |
| JP5516646B2 (en) * | 2012-05-17 | 2014-06-11 | カシオ計算機株式会社 | Keyboard device |
| JP6103336B2 (en) * | 2012-05-18 | 2017-03-29 | カシオ計算機株式会社 | Keyboard instrument |
| US9076410B2 (en) * | 2013-09-19 | 2015-07-07 | Kabushiki Kaisha Kawai Gakki Seisakusho | Fallboard arrangement for keyboard instrument and opening and closing device for fallboard |
| JP6778418B2 (en) * | 2017-12-28 | 2020-11-04 | カシオ計算機株式会社 | Lid switchgear and keyboard instruments |
| US10936015B2 (en) * | 2019-04-22 | 2021-03-02 | Compal Electronics, Inc. | Electronic device with multiple screens |
| CN112634845A (en) * | 2019-10-08 | 2021-04-09 | 泉州市雅捷电子科技有限公司 | Push-pull switch type piano |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6673991B2 (en) * | 2002-05-29 | 2004-01-06 | Kabushiki Kaisha Kawai Gakki Seisakusho | Keyboard lid opening and closing mechanism for keyboard musical instrument and keyboard musical instrument |
| CN1469340A (en) * | 2002-06-28 | 2004-01-21 | 卡西欧计算机株式会社 | Cover opening & closing device for keyboard instrument |
| CN101038738A (en) * | 2006-03-17 | 2007-09-19 | 卡西欧计算机株式会社 | Opening/closing mechanism for a keyboard instrument cover |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004309963A (en) * | 2003-04-10 | 2004-11-04 | Kawai Musical Instr Mfg Co Ltd | Keyboard cover opening and closing device for keyboard musical instrument |
| JP4357336B2 (en) * | 2004-03-31 | 2009-11-04 | 株式会社河合楽器製作所 | Keyboard lid device for keyboard instruments |
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- 2010-03-22 CN CN 201010138940 patent/CN101847402B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6673991B2 (en) * | 2002-05-29 | 2004-01-06 | Kabushiki Kaisha Kawai Gakki Seisakusho | Keyboard lid opening and closing mechanism for keyboard musical instrument and keyboard musical instrument |
| CN1469340A (en) * | 2002-06-28 | 2004-01-21 | 卡西欧计算机株式会社 | Cover opening & closing device for keyboard instrument |
| CN101038738A (en) * | 2006-03-17 | 2007-09-19 | 卡西欧计算机株式会社 | Opening/closing mechanism for a keyboard instrument cover |
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| Title |
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| JP特开2004-309963A 2004.11.04 |
| JP特开2005-292415A 2005.10.20 |
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| CN101847402A (en) | 2010-09-29 |
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