CN100508021C - Cover opening & closing device for keyboard instrument - Google Patents
Cover opening & closing device for keyboard instrument Download PDFInfo
- Publication number
- CN100508021C CN100508021C CNB031430805A CN03143080A CN100508021C CN 100508021 C CN100508021 C CN 100508021C CN B031430805 A CNB031430805 A CN B031430805A CN 03143080 A CN03143080 A CN 03143080A CN 100508021 C CN100508021 C CN 100508021C
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- China
- Prior art keywords
- keyboard
- lid
- rack member
- pair
- keyboard lid
- Prior art date
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- Expired - Lifetime
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Abstract
This device is provided with the keyboard cover 10 covering an upper part of a keyboard part 7 between sideboards 5 of an instrument main body 1 and that of an operation part 8 at a rear upper side of the keyboard part 7. A guide member 14 guiding a roller 13 disposed in the keyboard cover 10 is arranged on an inner face of the sideboard 5. A rack member 12 which rolls by engagement with a pinion 11 fitted to a rear part of the keyboard cover 10 is buried inside the sideboard 5. When the keyboard cover 10 slides, the roller 13 is guided by the guide member 14 and the pinion 11 is engaged with the rack member so as to roll. Thus, the keyboard cover 10 smoothly slides and especially the rack member 12 is buried in the sideboard 5. Then, the rack member 12 is prevented from being positioned below a sliding track of the keyboard cover 10, and the keyboard cover 10 does not interfere with the rack member 12. Consequently, the keyboard cover 10 can be made to smoothly slide.
Description
Technical field
The present invention relates to the lid switchgear of keyboard instruments such as a kind of pianotron
Background technology
In the past; on keyboard instruments such as pianotron, has the keyboard lid that can cover the keypad portion of arranging white key and black key flexibly, sliding keyboard cover when playing with opening and closing; it is accommodated in the musical instrument body, and the top of when not playing keyboard lid being pulled out overlay keyboard portion is with to its protection.
Fig. 7～Fig. 9 is the one illustration.This keyboard instrument has musical instrument body 1.This musical instrument body 1, as shown in Figure 7, by base plate 2, be located at these base plate 2 leading sections (left part of this figure) header board 3, be located at these base plate 2 rearward end (right part of this figure) back plate 4, be located at the pair of side plates 5 of these base plate 2 left and right sides (the interior outside of this drawing) and be located at this rear portion side of side plate 5 upper plate 6 with each top of back plate 4 is constituted, therefore before upper lateral part be open structure.
On the base plate 2 of toe lateral (left side of Fig. 7) between the pair of side plates 5 in this musical instrument body 1, will on keyboard underframe 7c, arrange the keypad portion 7 of white key 7a and black key 7b, with the state configuration exposed preceding upper lateral part in musical instrument body 1.Between the side plate 5 of (this figure right side top) above the rear portion that is positioned at this keypad portion 7, the operating portion 8 of various switches such as power switch, volume switch, tone color switch will be provided with, with the state configuration exposed preceding upper lateral part in musical instrument body 1.On the base plate 2 that is positioned at this keypad portion 7 and operating portion 8 rear portion side, dispose speaker portion 9.And,, as shown in Figure 1, taking in the keyboard lid 10 that can pull out and can open and close flexibly ground overlay keyboard portion 7 and operating portion 8 at the downside of the upper plate 6 of musical instrument body 1.
The lid switchgear of this keyboard instrument, as shown in Figures 7 and 8, for keyboard lid 10 is successfully pulled out, have: can be installed on a pair of pinion wheel 11 that keyboard covers both sides, 10 rear portions (right side of Fig. 7) flexibly rotatably with installation shaft 11a respectively, be arranged on the inner face at rear portion (right side of this figure) of pair of side plates 5 along fore-and-aft direction (left and right directions of this figure) respectively, and a pair of rack member 12 that a pair of pinion wheel 11 rotates with its engagement respectively, be installed on a pair of roller 13 of the both sides, front portion (left side of this figure) of keyboard lid 10 respectively, be located on the medial surface of pair of side plates 5 front portions (left side of this figure) along fore-and-aft direction respectively, and can guide the guiding parts 14 of a pair of roller 13 respectively rotationally.
Therefore, this lid opening/closing device is a sliding keyboard cover 10 and it is accommodated in the downside of the upper plate 6 of musical instrument body 1 when playing, and when not playing with keyboard lid 10, pull out from the downside of upper plate 6 and to cover and the structure of protection keypad portion 7 and operating portion 8.At this moment, rack member 12, as shown in Figure 8, the axle gathering sill 12b of the tooth-strip part 12a that is rotated by pinion wheel 11 and its engagement and the installation shaft 11a front end of guiding pinion wheel 11 constitutes, and tooth-strip part 12a and axle gathering sill 12b are fixed on the inner face of side plate 6 by bolt 15 with the state that (upper left side of this figure) forward upward tilts a little.
In addition, guiding parts 14, as shown in Figures 7 and 8, the spigot surface 14a of rotary rollers 13, formation from the leading section of keypad portion 7 to the rearward end transition of operating portion 8 and the shape of the inclination of descend forward (lower-left of Fig. 8), and disposed side piece 18 in its underpart, with bolt 15 side piece 18 is being fixed on the inner face of side plate 5 together under this state.On the upper end of the spigot surface 14a of this guiding parts 14, be provided with when keyboard lid 10 during, restriction roller 13 the 1st position limit portion 16 that moves of direction forwards, backwards fully by the downside of income at the upper plate 6 of musical instrument body 1.And, for not can keyboard cover 10 and operating portion 8 between sandwich hand or finger, be provided with before keyboard lid 10 complete overlapping operation portions 8 and keypad portion 7 in the bottom of this spigot surface 14a, restriction roller 13 is forwards to the 2nd mobile position limit portion 17.And when roller 13 breaks away from from the 2nd position limit portion 17, as shown in Figure 7, when keyboard lid 10 was configured in the upper end of header board 3, keyboard lid 10 is overlapping operation portion 8 and keypad portion 7 fully just.
But, on the lid switchgear of such keyboard instrument, when sliding keyboard cover 10, the pinion wheel 11 that keyboard covers 10 rear portions rotates with the rack member 12 Nogami merging of side plate 5, the roller 13 that the while keyboard covers 10 front portions rotates on the spigot surface 14a of the guiding parts 14 of side plate 5, so keyboard lid 10 is slided with very light power, but because rack member 12 is located on the inner face of the side plate 5 that is positioned at musical instrument body 1 both sides, so this rack member 12 protrudes from the musical instrument body 1, and rack member 12 fore-ends (the left end portion P that Fig. 9 represents with oblique line) of this protrusion are in the state that covers 10 sliding trace downsides near keyboard.Therefore, when keyboard lid 10 slides, as shown in Figure 9, have following and the rack member 12 fore-end P of keyboard lid 10 contact, make keyboard lid 10 and rack member 12 interfere mutually and so keyboard cover 10 problems that can not slide sleekly.
Such problem, its reason is, keyboard lid 10 is at the downside of the upper plate 6 of musical instrument body 1, taken in to lift the state that ground tilts a little on forward, when when this state is pulled out keyboard lid 10, the ground inclination is slided on one side because the spigot surface 14a of keypad portion 7 one edge guiding parts 14 descends forward gradually, so in case rack member 12 protrudes from the musical instrument body 1 and is positioned at the downside that keyboard covers 10 sliding traces, then as shown in Figure 9, when keyboard covered 10 slips, fore-end P just easy and rack member 12 rubbed below the keyboard lid 10 in its way.
Summary of the invention
The objective of the invention is to: can make keyboard lid and rack member not interfere with each other and make sleekly the keyboard lid to slide.
Promptly, according to a side of the present invention, a kind of qin lid opening/closing device of keyboard instrument is provided, have: be configured in the keypad portion between the pair of side plates of the musical instrument body left and right sides, be disposed at the operating portion of this keypad portion rear portion upper side, can cover the keyboard lid of above-mentioned keypad portion and aforesaid operations portion top with opening and closing, be located on the above-mentioned pair of side plates respectively and guide a pair of guiding parts of the front part sides of above-mentioned keyboard lid, be located on the described guiding parts, with the spacing position limit portion that is positioned at the top position of exposing described keypad portion and covering described operating portion at described keyboard lid of described keyboard lid, can be installed on a pair of pinion wheel of above-mentioned keyboard postoperculum both sides respectively flexibly rotatably, imbed in the above-mentioned pair of side plates respectively and above-mentioned a pair of pinion wheel Yu Qi Nogami merges a pair of rack member of rotating.
According to the present invention, owing to be accommodated in keyboard lid in the musical instrument body and make keypad portion and operating portion exposes, and for the keyboard lid is pulled out, the top of overlay keyboard portion and operating portion and keyboard lid is slided, the front part sides of keyboard lid is led along guiding parts, and the pinion wheel and the tooth bar parts Nogami that are installed in keyboard postoperculum both sides merge rotation, so can the keyboard lid successfully be slided with very light power, in addition, particularly be embedded in respectively in the pair of side plates that is each positioned at the musical instrument body both sides owing to a pair of rack member, so not can as in the past the example, rack member protrudes from the musical instrument body and near the downside of the sliding trace of keyboard lid, and rack member can be disposed at the outside side of the sliding trace of keyboard lid, therefore along with the sliding action of keyboard lid, no matter how forwards, backwards keyboard covers direction inclination, the keyboard lid is not interfered mutually with rack member yet, and the keyboard lid is successfully slided.
In addition, the present invention also can be integrally formed with above-mentioned rack member and guide sections part.
According to this structure, since rack member and guide member is integrally formed, so can realize the minimizing of number of spare parts, and, because of rack member being imbedded in the side plate of musical instrument body, can simultaneously guiding parts be installed on the side plate, therefore can realize the raising of assembling operation efficient.
In addition, the present invention also can be located at the position limit portion that makes above-mentioned keypad portion expose and cover the top position of aforesaid operations portion, the above-mentioned keyboard lid of restriction position at above-mentioned keyboard lid on the guide sections part.
According to this structure, sliding action along with the keyboard lid, direction tilts even keyboard covers forwards, backwards, the keyboard lid is not interfered mutually with rack member yet, so inclination of the direction forwards, backwards of keyboard lid in the time of needn't considering to slide, and the position limit portion of keyboard lid can be located on the optional position of guide member, can be reliably the keyboard lid be limited in this position limit portion simultaneously exposes and overlapping operation portion top position and nonvoluntary slip keypad portion, therefore, covering operating portion with keyboard lid and only exposing under the state of keypad portion and also can play well.
And then the present invention also can block and decontrol ground the retainer of the front stop of above-mentioned keyboard lid is located in the above-mentioned position limit portion.
According to this structure, owing to keyboard lid is slided and with the position of the front part sides that is located at the position limit portion limit key disk cover on the guide member, and the retainer of being located in this position limit portion can block the leading section side stop of relieving ground with the keyboard lid, so stop to the keyboard lid of portion if the user does not lift restrictions consciously, then the keyboard lid can not slide, the keyboard lid can be stopped at reliably the assigned position in the way of sliding, can more safely play.
Description of drawings
Other purpose and feature of the present invention from the narration of accompanying drawing and the preferred embodiments of the present invention, can make those skilled in the art understand easily.
Fig. 1 is the cut-open view of embodiment 1 of the lid switchgear of keyboard instrument of the present invention.
Fig. 2 is the stereographic map of the state on the side plate among Fig. 1 that rack member and guiding parts are installed on.
Fig. 3 is the side plate of Fig. 2 and the exploded perspective view of rack member.
Fig. 4 is the stereographic map of the guiding parts of Fig. 2.
Fig. 5 is the rack member and the integrally formed stereographic map of guiding parts that will be installed in the embodiments of the invention 2 on the side plate.
Fig. 6 is the stereographic map of the guiding parts in the embodiments of the invention 3.
Fig. 7 is the cut-open view of the lid switchgear of keyboard instrument in the past.
Fig. 8 is the stereographic map that in the example in the past of Fig. 7 rack member and guiding parts is installed on the side plate.
Fig. 9 is illustrated in the slide cut-open view of the state in the way of keyboard lid in the example in the past of Fig. 7.
Embodiment
(embodiment 1)
Below, the embodiment 1 of keyboard instrument of the present invention is described with reference to Fig. 1～Fig. 4.In addition, use the same-sign explanation at same section with the example in the past of Fig. 7～shown in Figure 9.
This keyboard instrument as shown in Figure 2, is will cover 11 engagements of 10 pinion wheel with keyboard respectively and make the rack member 12 of its rotation be embedded in structure in the pair of side plates 5 of musical instrument body 1.Promptly, as shown in Figure 3, on the rear portion side inner face of side plate 5, be provided with the chimeric recess 20 that is used to bury underground rack member 12 along fore-and-aft direction, pinion wheel 11, cover under the state of outer side of the left and right sides, 10 rear portion (the front cover direction of the paper of Fig. 1) protruding from keyboard respectively, be mounted a 11a and be installed on the keyboard lid 10.
Therefore, at the center section of chimeric recess 20, to chimeric recess 20, generally perpendicularly be provided with the insertion groove 21 that is used for from the top front end of pinion wheel 11 and installation shaft 11a inserted in the chimeric recess 20 from the upper end of side plate 5.
And rack member 12 with example was the same in the past, is made of the axle gathering sill 12b of the front end of the installation shaft 11a of the tooth-strip part 12a of pinion wheel 11 and its engagement and rotation, guiding pinion wheel 11, and with the high material monolithic shaping of rigidity such as metal or synthetic resin.At this moment, as shown in Figures 2 and 3, on axle gathering sill 12b, be provided with a notch part 22 that is used for that pinion wheel 11 is inserted in tooth-strip part 12a from the top and the front end of the installation shaft 11a of pinion wheel 11 is inserted axle gathering sill 12b from the top corresponding to insertion groove 21.
In addition, guiding parts 14, as Fig. 1, Fig. 2, shown in Figure 4, the spigot surface 14a that roller 13 rotates, be formed the tilted shape that rearward end from the leading section of keypad portion 7 to operating portion 8 reduces (at Fig. 1 for reducing) forward left, and be fixed on the front portion (left side of Fig. 1) of side plate 5 inner faces with side piece 18 with bolt 15.On the upper end of the spigot surface 14a of this guiding parts 14, with example was the same in the past, be provided with when keyboard lid 10 during, restriction roller 13 the 1st position limit portion 16 that moves of direction forwards, backwards fully by the downside of income at the upper plate 6 of musical instrument body 1, bottom at this spigot surface 14a, be provided with for not can keyboard cover 10 and operating portion 8 between tong or finger, before keyboard lid 10 complete overlapping operation portions 8 and keypad portion 7, restriction roller 13 is forwards to the 2nd position limit portion 17 that moves.
In addition, in the regulation part of the spigot surface 14a of this guiding parts 14, promptly, on the front part of the 1st position limit portion 16, as shown in Figure 1, be provided with when keyboard lid 10 exposing overlapping operation portion 8 under the state of keypad portion 7 above the time, the 3rd position limit portion 23 that limit key disk cover 10 moves.As Fig. 2 and shown in Figure 4, the 3rd position limit portion 23 at the recess that roughly is in the shape of the letter V, forms the dip plane that its front portion and rear portion sharply tilt, and is construed as limiting roller 13 structure that moves of direction forwards, backwards with this.In addition, the 3rd position limit portion 23 is lift on the front portion with keyboard lid 10, and then roller 13 just breaks away from and covers 10 structures that move of direction forwards, backwards at this state lower keyboard from the 3rd position limit portion 23.
Lid switchgear according to such keyboard instrument; when not playing; keyboard lid 10 is pulled out from the front portion of the following side direction musical instrument body 1 of the upper plate 6 of musical instrument body 1; can cover the top of 10 coverings and protection keypad portion 7 and operating portion 8 with keyboard; and when playing; when keyboard lid 10 is slided and when taking in the downside of upper plate 6, then exposes keypad portion 7 and operating portion 8 to the rear portion side from the toe lateral of musical instrument body 1, can operation keyboard portion 7 and operating portion 8 and play with this.Such keyboard lid 10 is when sliding, be installed on keyboard and cover the installation shaft 11a of the pinion wheel 11 at 10 rear portions, on one side by the axle gathering sill 12b guiding of rack member 12, pinion wheel 11 is on one side with the tooth-strip part 12a engagement of rack member 12 and rotate, and on the spigot surface 14a of guiding parts 14, rotate owing to be installed on the roller 13 that keyboard covers 10 front portions, so, even the Heavy Weight of keyboard lid 10 also can successfully make keyboard lid 10 slide with very light power.
At this moment, since when 16 in the 1st position limit portion that keyboard covers 10 when being accommodated in the downside of upper plate 6 of musical instrument body 1 fully, roller 13 is directed to parts 14 spacing, with this under the state that exposes keypad portion 7 and operating portion 8, keeping keyboard lid 10 can not arbitrarily slide, so can operation keyboard portion 7 and operating portion 8 and performance well.In addition, when pulling out keyboard lid 10 from the downside of upper plate 6 and at overlay keyboard portion 7 and operating portion 8 and before closing fully, it is spacing that roller 13 is directed to 17 in the 2nd position limit portion of parts 14, with this not can keyboard cover 10 and header board 3 between clamp hand or finger.In addition; if make roller 13 break away from and keyboard lid 10 is slided to front side (left side of Fig. 1) from the 2nd position limit portion 17; then roller 13 just is configured in the upper end of musical instrument body 1 header board 3, can cover 10 coverings with keyboard with this and cover and protect keypad portion 7 and operating portion 8.
In addition, in the mobile way of keyboard lid 10, roller 13 is spacing by 23 in the 3rd position limit portion, can cover with this to cover operating portion 8 and expose keypad portion 7.Under this state, because the 3rd position limit portion 23 has formed the recess that roughly is in the shape of the letter V that its front and rear is formed the dip plane of rapid inclination, so if lift the front portion of keyboard lid 10, then roller 13 does not break away from from the 3rd position limit portion 23, keyboard can be covered 10 spacingly with this, keyboard lid 10 can not arbitrarily be slided.Therefore, even covering operating portion 8 with 10 coverings of keyboard lid and exposing under the state of keypad portion 7, also button operation keypad portion 7 is played safely.In addition, when being in this state,, then keyboard can be covered 10 direction slips forwards, backwards if lift the anterior of keyboard lid 10 and roller 13 is broken away from from the 3rd position limit portion 23, keyboard can be covered 10 downsides that are accommodated in upper plate 6 with this, or cover with keyboard lid 10 and to cover keypad portion 7 and operating portion 8.
Like this, lid switchgear according to this keyboard instrument, because when keyboard lid 10 is slided, being located at roller 13 that keyboard covers 10 front portions is guided along the guiding parts 14 of side plate 5, and be installed in keyboard and cover the pinion wheel 11 at 10 rear portions and the tooth-strip part 12a engagement and the rotation of rack member 12, so, even Heavy Weight except keyboard lid 10, also can successfully make outside 10 slips of keyboard lid with very light power, particularly since rack member 12 by chimeric and be embedded in the chimeric recess 20 on the side plate 5 that is located at musical instrument body 1, so not can as in the past the example, rack member 12 protrudes from the musical instrument body 1 and near the downside of the sliding trace of keyboard lid 10, and rack member 12 can be configured in the outer side of the sliding trace of keyboard lid 10, with this, even with the sliding action keyboard lid 10 of keyboard lid 10 forwards, backwards direction how to tilt, keyboard lid 10 does not also contact with rack member 12 and does not interfere mutually, can be successfully with 10 slips of keyboard lid.
In addition, in the lid switchgear of this keyboard instrument, by rack member 12 is chimeric and be embedded in the chimeric recess 20 on the side plate 5 that is located at musical instrument body 1, even with sliding action keyboard lid 10 forwards, backwards direction how to tilt, keyboard lid 10 can not interfered mutually with rack member 12 yet, so inclination of the direction forwards, backwards of keyboard lid 10 in the time of can considering to slide, and the 3rd position limit portion 23 that keyboard lid 10 is limited in the optional position of rack member 12 can be set, with the 3rd position limit portion 23, keyboard can be covered 10 is limited in reliably and exposes keypad portion 7 and the position of overlapping operation portion 8 tops, even covering operating portion 8 with keyboard lid 10 and only exposing under the state of keypad portion 7, also can play well with this.
(embodiment 2)
Below, with reference to Fig. 5, the embodiment 2 of the lid switchgear of keyboard instrument of the present invention is described.And, use the same-sign explanation in the part identical with the embodiment 1 of Fig. 1～shown in Figure 4.
The lid switchgear of this keyboard instrument is with rack member 12 and guiding parts 14 integrally formed structures.That is, the rearward end of the leading section of rack member 12 and guiding parts 14 is in the state that overlaps, promptly with the stagger state monolithic molding of the degree of depth of chimeric recess 20 of the chimeric side plate 5 of rack member 12 of 14 inboards to side plate 5 of guiding parts.Therefore, when rack member 12 being embedded the chimeric recess 20 of side plates 5, guiding parts 14 closely is installed on the inner face of side plate 5.In addition, at this moment, rack member 12, also identical with embodiment 1, the most handy bolt 15 is fixing with side piece 18 with it.
Lid switchgear with such keyboard instrument, except action effect is similarly to Example 1 arranged, particularly because with rack member 12 and guiding parts 14 monolithic moldings, so can realize the minimizing of number of spare parts, and use the method in the chimeric chimeric recess 20 of imbedding the side plate 5 of being located at musical instrument body 1 of rack member 12, can simultaneously guiding parts 14 be installed on the side plate 5, therefore can realize the raising of assembling operation efficient.
(embodiment 3)
Below, with reference to Fig. 6, the embodiment 3 of the lid switchgear of keyboard instrument of the present invention is described.And, use the same-sign explanation in the part identical with the embodiment 1 of Fig. 1～shown in Figure 4.
The lid switchgear of this keyboard instrument is to be provided with keyboard to be covered the structure that 10 roller 13 blocks the retainer 30 of decontroling ground stop in the 3rd position limit portion 23 of guiding parts 14.Promptly, this retainer 30, as shown in Figure 6, be to form the shape that overhangs that from the rear (this figure's is right-hand) inserts roller 13 in the front portion of the 3rd position limit portion 23, roller 13 stop of inserting are stoped its forwards (left of this figure) and structure of being moved upward with this.
Lid switchgear according to such keyboard instrument, except action effect is similarly to Example 1 arranged, particularly in the slip way of keyboard lid 10, the 3rd position limit portion 23 that in a single day roller 13 of keyboard lid 10 is located on the guiding parts 14 is spacing, then keyboard can be covered 10 roller 13 and can block and decontrol ground stop with being located at retainer 30 in the 3rd position limit portion 23, with this reliably locking key disk cover 10 so that its can not be optionally forwards and be moved upward.
In addition, under this state, after keyboard lid 10 rearward being moved and roller 13 being broken away from from retainer 30, if do not lift on the front portion with keyboard lid 10, then can not remove stop by retainer 30 and the 3rd position limit portion 23 pair of rollers 13, so the user as if the stop of not removing consciously by retainer 30 and the 3rd position limit portion 23 pair of rollers 13, then can not make keyboard lid 10 slide.Therefore, even roller 13 is disposed at the 3rd position limit portion 23 and keyboard is covered 10 assigned positions that are disposed in the way of sliding, also can be reliably with the 10 arbitrarily stop movably of keyboard lid, can more reliably under the state of locking key disk cover 10, play safely than embodiment 1 with this.
In addition, the same with embodiment 1 in the foregoing description 3, be the structure that rack member 12 and guiding parts 14 are formed separately, but be not limited to this, also can be the same with embodiment 2, with rack member 12 and guiding parts 14 monolithic moldings.In view of the above, the same with embodiment 2, the minimizing of number of spare parts can be realized, and the raising of assembling operation efficient can be realized.
Claims (3)
1. the lid switchgear of a keyboard instrument is characterized in that having:
Be configured in keypad portion (7) between the pair of side plates (5) that is positioned at the musical instrument body left and right sides,
Be disposed at this keypad portion (7) rear portion upper side operating portion (8),
Can cover with opening and closing keyboard above described keypad portion (7) and the described operating portion (8) cover (10),
Be located at respectively described pair of side plates (5) go up and guide the front part sides of described keyboard lid (10) a pair of guiding parts (14),
Be located on the described guiding parts (14), with described keyboard lid (10) spacing described keyboard lid (10) be positioned at the position limit portion (16,17,23) of exposing described keypad portion (7) and covering the top position of described operating portion,
Can be installed on rotatably flexibly respectively described keyboard lid (10) both sides, rear portion a pair of pinion wheel (11),
Be embedded in the described pair of side plates (5) respectively and a pair of rack member (12) of described a pair of pinion wheel (11) and its engagement and rotation.
2. the lid switchgear of keyboard instrument according to claim 1 is characterized in that: with described rack member (12) and described guiding parts (14) monolithic molding.
3. the lid switchgear of keyboard instrument according to claim 1 is characterized in that: in described position limit portion (23), be provided with to block and decontrol the retainer (30) of ground with the leading section side stop of described keyboard lid (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002189538A JP3896912B2 (en) | 2002-06-28 | 2002-06-28 | Keyboard instrument lid opening and closing device |
| JP2002189538 | 2002-06-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1469340A CN1469340A (en) | 2004-01-21 |
| CN100508021C true CN100508021C (en) | 2009-07-01 |
Family
ID=29996852
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03262363 Expired - Lifetime CN2702407Y (en) | 2002-06-28 | 2003-06-19 | Cover switching device for keyboard instruments |
| CNB031430805A Expired - Lifetime CN100508021C (en) | 2002-06-28 | 2003-06-19 | Cover opening & closing device for keyboard instrument |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03262363 Expired - Lifetime CN2702407Y (en) | 2002-06-28 | 2003-06-19 | Cover switching device for keyboard instruments |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3896912B2 (en) |
| CN (2) | CN2702407Y (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4552537B2 (en) * | 2004-07-07 | 2010-09-29 | カシオ計算機株式会社 | Keyboard lid |
| JP4543431B2 (en) * | 2006-01-16 | 2010-09-15 | ヤマハ株式会社 | Keyboard instrument |
| JP5041277B2 (en) * | 2006-09-15 | 2012-10-03 | ヤマハ株式会社 | Electronic keyboard instrument |
| JP4992410B2 (en) * | 2006-12-20 | 2012-08-08 | カシオ計算機株式会社 | Keyboard lid opening and closing device |
| JP4732503B2 (en) * | 2008-10-30 | 2011-07-27 | 星野楽器株式会社 | Strap connector and musical instrument strap with strap connector |
| JP5218155B2 (en) * | 2009-03-04 | 2013-06-26 | ヤマハ株式会社 | Keyboard instrument lid open / close structure |
| CN101847402B (en) * | 2009-03-23 | 2013-02-13 | 雅马哈株式会社 | Sliding keyboard cover mechanism |
| JP6435598B2 (en) * | 2013-10-17 | 2018-12-12 | カシオ計算機株式会社 | Keyboard instrument |
| JP2015087708A (en) * | 2013-11-01 | 2015-05-07 | ヤマハ株式会社 | Buffer |
| JP2016040562A (en) * | 2014-08-12 | 2016-03-24 | ヤマハ株式会社 | Keyboard instrument |
| CN108831413A (en) * | 2018-07-27 | 2018-11-16 | 姚岚 | A kind of concealed piano keyhoard cover with Buffer Unit |
-
2002
- 2002-06-28 JP JP2002189538A patent/JP3896912B2/en not_active Expired - Fee Related
-
2003
- 2003-06-19 CN CN 03262363 patent/CN2702407Y/en not_active Expired - Lifetime
- 2003-06-19 CN CNB031430805A patent/CN100508021C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1469340A (en) | 2004-01-21 |
| JP2004029644A (en) | 2004-01-29 |
| CN2702407Y (en) | 2005-05-25 |
| JP3896912B2 (en) | 2007-03-22 |
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