CN101211556B - Housing structure of electronic keyboard musical instrument - Google Patents
Housing structure of electronic keyboard musical instrument Download PDFInfo
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- CN101211556B CN101211556B CN2007103056352A CN200710305635A CN101211556B CN 101211556 B CN101211556 B CN 101211556B CN 2007103056352 A CN2007103056352 A CN 2007103056352A CN 200710305635 A CN200710305635 A CN 200710305635A CN 101211556 B CN101211556 B CN 101211556B
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- upper shell
- lower house
- jut
- shell
- conjugate foramen
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Abstract
A housing structure of an electronic keyboard musical instrument, in which a pivotable upper case can be mounted to and dismounted from a lower case when the upper case is in a semi-open state, thereby improving safety and the working efficiency at the time of assembly and maintenance. Pivot coupling parts each include an engagement protrusion comprised of a narrow-width portion and a wide-width portion. An upper case is formed with engagement holes each comprised of a narrow-width counterpart permitting the narrow-width portion to be inserted thereinto and a wide-width counterpart permitting the wide-width portion to be inserted thereinto. By moving the upper case, having a posture thereof corresponding to a mountable/dismountable angle range, in the direction in which the wide-width portions project, the wide-width portions can be inserted into and removed from the wide-width counterparts.
Description
Technical field
The present invention relates to the shell mechanism of electric keyboard instrument, it comprises and being suitable for by upper shell being fixed on the shell of realizing on the lower house.
Background technology
The shell mechanism of traditional electronic musical instrument generally comprises upper shell and lower house, and described upper shell is fixedly secured with lower house formation separated from one another and by fastener is in the same place.But because the upper shell of this shell mechanism separates with lower house is secured together before each other fully, it must be placed on different places in the process of product assembling and maintenance business, causes the poor efficiency of work space to be used.
Equally, have known a kind of shell mechanism and comprise upper shell and lower house, its formation separated from one another and relative to each other connecting with pivoting action.For example, be that disclosed shell comprises upper shell in the Japanese Utility Model of 62-103382 at number of registration, the relative lower house of described upper shell can pivot around the hinge that is arranged on this shell rear portion between open mode and closed condition.Remain at upper shell under the situation of closed condition, by screw etc. upper shell is fixed to and realizes shell on the lower house.
But according to being the above-mentioned shell that discloses in the Japanese Utility Model of No.62-103382 at number of registration, wherein upper shell and lower house are connected through the hinge, and are not easy to untie this connection so that it is separated from one another.
Thereby, for example, after upper shell being fixed on lower house, be difficult to parts are installed on the shell.Therefore in some cases, running program is restricted, and causes before upper shell and lower house are linked together parts to be installed on the shell.
Because the upper shell and the lower house that are connected through the hinge together are difficult to take apart, for example, for the operator, the inside of watching shell for the maintenance purpose is inconvenient, causes low processibility.
On the other hand, under situation about using, replace hinge with the pivot coupling arrangement upper shell and lower house are linked together pivotly, when upper shell is opened, separate, then can not guarantee security if pivot to connect by mistake.In addition, when upper shell is closed, separated if should pivot to connect by mistake, then with regard to misalignment, this makes the operator be difficult to fasten them together once more on the position for this upper shell and lower house.
Traditionally, also have the shell mechanism of known a kind of electric keyboard instrument, wherein upper shell and lower house formation separated from one another and realize shell (publication No. is the Jap.P. of No.3821022) on the lower house by upper shell is fixedly mounted in.In such shell mechanism, generally by from last or upper shell and lower house are tightened together from the fastening means of using down such as screw.
For upper shell and lower house are fixed together, fixing again after they must being arranged with suitable position relation.In some electric keyboard instrument, in advance arm and side bed (side bed) are fixed on the upper shell, and in advance key sheet (key slip) and keyboard unit are fixed on the lower house.In this musical instrument, if the positional precision between upper shell and the lower house is low, then the gap between keyboard unit and the side bed becomes inhomogeneous between the left side of musical instrument and right side or based on the position on the direction of musical instrument A-P and difference.On the other hand, in having the musical instrument that in advance keyboard unit is fixed on the upper shell, if the positional precision between upper shell and the lower house is low, then between key sheet and the keyboard unit and the gap between key sheet and the side bed becomes inappropriate.Thereby it is necessary when regulating the gap upper shell and lower house being fixed together.
When fixedly when upper shell and lower house, then having the problem that need be awkward by the screw that inserts from below etc.Particularly, at first upper shell and lower house are put upside down to be fixed and be in the same place, upwards overturn so that whether the gap of visual examination between musical instrument left side and right side be even in the right side then.If the gap is inhomogeneous, then put upside down upper shell and lower house to implement fixing operation once more.
When by the screw retention upper shell that inserts from above and lower house, needn't put upside down upper shell and lower house.But, even after the assembling of finishing shell, also can see screw or other fastener from above, cause the problem of appearance poor.
Summary of the invention
The invention provides a kind of shell mechanism of electric keyboard instrument, it comprises pivotable upper shell, only when upper shell is in semi-open state, can be easy to described upper shell is installed on the lower house or from lower house and disassemble, thereby security and work efficiency when having improved assembling and maintenance.
The present invention also provides a kind of shell mechanism of electric keyboard instrument, wherein under the state of rotation upper shell and lower house that faces up, described upper shell and lower house can be fixed together, and can therefore improve outward appearance by arm covering shell securing member to obtain the appearance of nature.
According to a first aspect of the invention, a kind of shell mechanism of electric keyboard instrument is provided, it has the shell of being made up of lower house separated from one another and upper shell, described upper shell is suitable for described relatively lower house and pivots between the opening and closing state, and described shell is to be fixed on the described lower house by the described upper shell that will be in closed condition to realize, comprise: at least one jut, it is formed in any rearward end of described upper shell and described lower house regularly; And at least one conjugate foramen, it is formed in another rearward end of described upper shell and described lower house, wherein said upper shell and described lower house be suitable for described conjugate foramen and insert described conjugate foramen and the jut that engages between pivot relative to each other on the direction that opening and closing around the junction surface, and when wherein only being in predetermined pivoting angle in described upper shell is opening and closing pivoting action on the direction, described jut and described conjugate foramen are suitable for inserting relative to one another and removing on the outstanding direction that forms of described jut.
Shell mechanism according to a first aspect of the invention only when upper shell is in semi-open state, can easily be installed to pivotable upper shell on the lower house and from lower house and dismantles, and makes it possible to improve the security and the work efficiency of assembling and maintenance.
Among the present invention, described jut can comprise narrow width part and wide width part, in the key orientation, described wide width part is set at a side of close described jut end with respect to described narrow width part, and has the length longer than the length of described narrow width part, described conjugate foramen can comprise the wide cut correspondence portion with the wide width part insertion width wherein that allows described jut, and form and have a corresponding in a narrow margin portion that does not allow described wide width part to insert wherein but allow described narrow width part insertion width wherein in abutting connection with described wide cut correspondence portion, when having when on the outstanding direction that forms of described jut, relatively moving with the described upper shell of the corresponding attitude of predetermined pivot angle and described lower house, described wide width part can be suitable for inserting described wide cut correspondence portion and can remove from described wide cut correspondence portion, and when described upper shell is in open mode, because the joint between described wide width part and the described corresponding in a narrow margin portion prevents that described jut and described conjugate foramen from inserting relative to one another and removing on the outstanding direction that forms of described jut.
In this case, can prevent that the upper shell that is in open mode from by mistake disassembling from lower house.
Described jut can be given prominence to formation, upwards and forward or backward extend obliquely with described rearward end from described lower house, described conjugate foramen can be formed in the described rearward end of described upper shell, and when described upper shell is in closed condition, because the front surface of the joint between the rearward end of described upper shell and the rearward end of described lower house and the inclination of described jut or the joint between rear surface and the described conjugate foramen can prevent that described jut and described conjugate foramen from inserting relative to one another and removing on the outstanding direction that forms of described jut.
In this case, can prevent that the upper shell that is in closed condition from by mistake disassembling from lower house.
Described jut can be given prominence to formation, with upwards and retreat and tiltedly extend from the rearward end of described lower house, described conjugate foramen can be formed in the described rearward end of described upper shell, and when described upper shell is in open mode, because the direct or indirect joint between the rear surface of the described rearward end of the joint between the described narrow width part of described jut and the described corresponding in a narrow margin portion of described conjugate foramen and the described rearward end of described upper shell and described lower house, described upper shell can be suitable for maintaining open mode.
In this case, upper shell is firmly supported, therefore improve processibility and security.
According to a second aspect of the invention, a kind of shell mechanism of electric keyboard instrument is provided, it has the shell of being made up of lower house separated from one another and upper shell, described shell is realized by described upper shell is fixedly secured on the described lower house, comprise: tighten portion, it is arranged in the left side and right side of described upper shell; Following fastening part, it is arranged in the left side and right side of described lower house, and is suitable for the described portion that tightens in the face of described upper shell when described upper shell is located in its position of being installed to described lower house; And left arm and right arm, it forms discretely from described upper shell and described lower house respectively, wherein when described upper shell is located in the position that will be installed to described lower house, by tightening together from the described described fastening part down that tightens portion and described lower house of last application housing securing member with described upper shell, and wherein said left arm and described right arm are fastened to described upper shell and the described lower house at least one left side and right side respectively from left side and right side, make it invisible to cover described housing securing member.
Shell mechanism according to a second aspect of the invention, when heads rotation upper shell and lower house, described upper shell and described lower house can be fixed together, and can make the housing securing member invisible by arm, to obtain the appearance of nature, therefore improve outward appearance.
Described portion and the described down fastening part of tightening can be set to respectively from described upper shell and described lower house left and outstanding to the right, and described left arm and described right arm can be formed with described on described left side and the right side respectively and tighten portion and described fastening part down and be fixed to wherein yielding portion.
In this case, can make whole fastening part invisible, therefore further improve outward appearance.
Further, hereinafter will make feature of the present invention more obvious to the description of exemplary embodiment with reference to accompanying drawing.
Description of drawings
Figure 1A is the vertical view of application according to the electric keyboard instrument of the shell mechanism of one embodiment of the present invention;
Figure 1B is the rear view of described musical instrument;
Fig. 2 A is the right view that expression is installed to upper shell the keyboard instrument under the state of lower house;
Fig. 2 B represents upper shell temporarily to be installed on the lower house but is not fastened on the synoptic diagram of the right-hand part of the musical instrument under the state of lower house with also being fixed;
Fig. 3 A is a vertical view of representing upper shell temporarily to be installed to the right side of the keyboard instrument under the state that still also arm is not installed to shell on the lower house;
Fig. 3 B is the right view that expression is in the described musical instrument under the state of just having mentioned;
Fig. 3 C is a vertical view of representing upper shell and arm are installed to the right side of the musical instrument under the state of lower house and shell;
Fig. 3 D is the right view that expression is in the musical instrument under the state of just having mentioned;
Fig. 4 A is a vertical view of representing also not upper shell and described arm are installed to the left side of the electric keyboard instrument under the state of lower house and shell;
Fig. 4 B represents upper shell to be installed to lower house but also arm is not installed to the vertical view of the left side of the musical instrument under the state of shell;
Fig. 4 C is a vertical view of representing upper shell and arm are installed to the left side of the musical instrument under the state of lower house and shell;
Fig. 5 A is the right view of expression arm face side;
Fig. 5 B is the left view of expression arm lower face side;
Fig. 5 C is the sectional view that the line A-A along Fig. 5 A dissects;
Fig. 6 is the longitudinal diagram of the structure of a pivot connecting portion under the state opened of expression upper shell;
Fig. 7 A is the vertical view that expression is arranged on the part of the pivot connecting portion in the lower house;
Fig. 7 B is the sectional view that the line B-B along Fig. 7 A dissects;
Fig. 7 C is the rear view that expression is arranged on the part of the pivot connecting portion in the lower house;
Fig. 8 A is the vertical view of the pivot connecting portion under the state opened of expression upper shell;
Fig. 8 B is the sectional view that the line C-C along Fig. 8 A is dissectd;
Fig. 9 A is that the expression upper shell begins to be mounted or the vertical view with the pivot connecting portion under the state that moves as opening/closing of just being pivoted;
Fig. 9 B is the sectional view that the line D-D along Fig. 9 A is dissectd;
Figure 10 A is the vertical view of the pivot connecting portion under the expression upper shell closed condition;
Figure 10 B is the sectional view that the line E-E along Figure 10 A is dissectd;
Figure 11 is expression and comprise with embodiment at pivot the accordingly vertical view of connecting portion of the improvement of different in shape plates and conjugate foramen;
Figure 12 A is the view of the upper shell of the improvement under the expression upper shell closing state;
Figure 12 B is the view of the upper shell under the state that pivoted of expression upper shell; And
Figure 12 C is the view that expression is in the upper shell of open mode.
Embodiment
Hereinafter, the accompanying drawing with reference to the expression preferred embodiment for the present invention is described in detail the present invention.
Figure 1A represents to use the vertical view of electric keyboard instrument of the shell mechanism of one embodiment of the invention, and Figure 1B represents the rear view of this musical instrument.The front side of this keyboard instrument is provided with the keyboard unit KB that the player faces.Hereinafter, determine the direction of the left-to-right of this musical instrument with reference to the player.Described electric keyboard instrument has shell 10, and described shell 10 comprises lower house 40, and upper shell 20 is installed on the lower house 40, and the arm 70 (70L, 70R) that is installed in the left side and the right side of shell 10.
Fig. 2 A is illustrated in the right view that upper shell 20 is installed to the keyboard instrument under the state of lower house 40, and Fig. 2 B represents upper shell 20 to be installed on the lower house 40 but is not fastened on the stereographic map of the right-hand part of the musical instrument under the state of lower house 40 with also being fixed.In the state shown in Fig. 2 A and Fig. 2 B, also arm 70 is not installed to shell 10.
Fig. 3 A represents upper shell 20 temporarily to be installed on the lower house 40 but also arm 70 is not installed to the vertical view of the right side of the keyboard instrument under the state of shell 10, and Fig. 3 B represents to be in the right view of the musical instrument under the state of just having mentioned.Fig. 3 C represents upper shell 20 and arm 70 are installed to the vertical view of the right side of the musical instrument under the state on lower house 40 and the shell 10, and Fig. 3 D represents the right view of musical instrument under this state.
Fig. 4 A represents the vertical view of musical instrument left side, wherein also upper shell 20 is not installed on the lower house 40 and not arm 70 is installed on the shell 10.Fig. 4 B represents the vertical view of the left side of musical instrument, wherein upper shell 20 has been installed on the lower house 40 and arm 70 is not installed on the shell 10.Fig. 4 C represents the vertical view of the left side of musical instrument, wherein upper shell 20 and arm 70 is installed on lower house 40 and the shell 10.
Shown in Figure 1B and Fig. 2 B, keyboard unit KB is arranged in the lower house 40, and side bed 44,45 is fixedly installed on the left side and the lower house on the right side 40 of keyboard unit KB.Lower house 40 has right lateral surface 42R, wherein is formed with a plurality of being used for arm 70R is installed in threaded hole 46 on the shell 10.These holes 46 on the direction of the A-P of musical instrument, be intervally installed (seeing Fig. 2 B).Tabular lower flange 47R is from the right lateral surface 42R of lower house 40 extend out (seeing Fig. 2 A, 2B, 3A and Fig. 3 B).Preferably, lower flange 47R is made of metal and is set to regularly on the right lateral surface 42R of lower house 40.Under the situation that lower house 40 is made of metal, lower flange 47R is preferably integrally formed with lower house 40.
Shown in Fig. 4 A and Fig. 4 B, lower flange 47L extends out from the left-hand face 42L of lower house 40.Left-hand face 42L is symmetrically formed to right lateral surface 42R and is similar, and lower flange 47L is symmetrically formed to lower flange 47R and similar.Among lower flange 47L, the 47R each all is formed with a plurality of threaded holes 48 (seeing Fig. 4 A) that vertically pass its extension.
The lower rightward bending of the right side member 25R of upper shell 20 is to form the upper flange 27R that extends to the right.The bottom of left-side member 25L is crooked left to form the upper flange 27L that extends left.Left-side member 25L is symmetrically formed to right side member 25R and is similar, and upper flange 27L is symmetrically formed to upper flange 27R and similar.Among upper flange 27L, the 27R each all is formed with the fastener hole 30 (see Fig. 2 B and Fig. 3 A) corresponding with the threaded hole 48 of lower flange 47.
When upper shell 20 being installed and is fixed on the lower house 40, upper flange 27L, 27R be set to become with lower flange 47L, 47R in the face of concern and with lower flange 47L, 47R contacts (seeing Fig. 2 B and Fig. 3 B).By screw 49 is inserted fastener hole 30, screw 49 is tightened with threaded hole 48 engaged, (see Fig. 4 B) from last upper shell 20 is fixed on the lower house 40.Since upper shell 20 is faced up rotate state under screw 49 can be tightened joint, when therefore adjusting the horizontal level of upper shell 20, can implement the joint of tightening of screw 49 based on visual examination.
Fig. 5 A represents the right view of the face side of arm 70R, and Fig. 5 B represents the left view of the lower face side of arm 70R, and Fig. 5 C is the sectional view that the line A-A along Fig. 5 A is dissectd.Arm 70R, the 70L structure and similar that is mutually symmetrical, and form respectively with shell 10.
Shown in Fig. 5 C, arm 70R comprises the first half, wherein is formed with the groove yielding 70a of portion that extends at longitudinal direction.When being installed to arm 70R on the shell 10, the upper flange 27R of upper shell 20 and lower house 40 and lower flange 47R fit into the 70a of yielding portion and can not cause interference each other.Shown in Fig. 5 B, arm 70R has left side (on rear side), wherein is formed with a plurality of reinforcements (rib) 72,73 that are used to guarantee enough rigidity.
Fig. 6 is illustrated in the longitudinal profile of one structure among the pivot connecting portion C1 of (seeing Figure 1B etc.) under the state that upper shell 20 opens.Among Fig. 6, expression upper shell 20 is in the state of opening fully, and wherein upper shell 20 is around the pivot connecting portion C1 maximum that pivots on the direction of opening, and it is known as " open mode ".Among Fig. 2 B, the expression upper shell 20 be in complete closing state, wherein upper shell 20 on the direction of closing, pivots the maximum, it is known as " closed condition ".
Fig. 7 A represents to be arranged on the vertical view of the part of a pivot connecting portion C1 in the lower house 40, and Fig. 7 B is the sectional view that the line B-B along Fig. 7 A is dissectd, and Fig. 7 C represents the rear view of the part that is arranged on the pivot connecting portion C1 in the lower house 40 just mentioned.The sectional view that Fig. 6 is dissectd corresponding to the line B-B along Fig. 7 A.Pivot connecting portion C1 has two and be spaced apart from each other on the direction of the left-to-right of musical instrument.Three or more pivot connecting portion can be set.Structure is identical each other for these two pivot connecting portion C1, and can be configured to be mutually symmetrical.
As shown in Figure 6, each pivot connecting portion C1 comprises the top of the back plate 41 of lower house 40, the horizontal part 50 of lower house 40, the rearward end 20a and the plate 60 of upper shell 20.The rearward end 20a of upper shell 20 comprises first bend 22, second bend 23 and the 3rd bend 24.Rearward end 20a is bent to form as a whole integratedly to hook-shaped.On the one hand, first bend 22 is connected on the upper plate 21 of upper shell 20, and on the other hand, described first bend 22 is connected on second bend 23, and second bend 23 connects the 3rd bend 24 successively.As seeing from the side, side (front side in open mode) forms an obtuse angle within it between first bend 22 and upper plate 21, and second bend 23 almost extends perpendicular to upper plate 21.The 3rd bend 24 extend with about tens degree to the angles of ten degree with respect to upper plate 21 and towards the end of the 3rd bend 24 more near upper plate 21.
As Fig. 4 A, 6 and Fig. 7 A to Fig. 7 C shown in, tabular horizontal part 50 flatly and onwards extends from the upper end of the back plate 41 of lower house 40.As long as horizontal part 50 can be fixed on the plate 41 of back, then the horizontal part 50 of lower house 40 can be integrally formed with back plate 41 or be separated formation with back plate 41.Horizontal part 50 has separately and one of pivot connecting portion C1 corresponding part, and is formed with in the key orientation rectangular opening 52 of elongation separately.Except rectangular opening 52, in a plurality of parts, form rectangular opening 51, comprise left part and right part (the seeing Fig. 4 A) of the horizontal part 50 of lower house 40.
Use two screws 62 with rectangular opening 52 in a corresponding position each plate 60 is installed to the back plate 41 the rear surface on (with reference to Figure 1B, 4A, 6 and Fig. 7 A to 7C).Shown in Fig. 7 B, plate 60 has the crooked top that recedes (with the angle near 45 degree) to form engagement tab 61.Engagement tab 61 comprises: narrow width part 61a, described narrow width part 61a comprise bend 61x and the V-arrangement of formation shown in side view; And comprising wide width part 61b, described wide width part 61b extends and forms as the crow flies shown in side view towards the end tilts of this engagement tab from narrow width part 61a.
Shown in Fig. 7 A and Fig. 7 C, the right-hand part of narrow width part 61a slave plate 60 extends, and in the key orientation, wide width part 61b extends formation on the left side of narrow width part 61a.Plate 60 preferably is made of metal, but plate 41 got final product after only requirement can be fixed on.Plate 60 can be integrally formed with back plate 41.
Fig. 8 A, 9A and Figure 10 A are the vertical views of a pivot connecting portion C1, and Fig. 8 B, 9B and 10B be respectively the line C-C along Fig. 8 A, the sectional view that the line D-D of Fig. 9 A and the line E-E of Figure 10 A are dissectd.Fig. 8 A and Fig. 8 B represent that upper shell 20 is in open mode, and Figure 10 A and Figure 10 B represent that upper shell 20 is in closed condition.Fig. 9 A and Fig. 9 B represent that upper shell 20 is in the state (half-open position) that the state that upper shell begins to be mounted or the upper shell that just pivoting move with opening/closing.In upper shell 20 pent states, upper shell 20 is installed and is fixed on the lower house 40.
The 3rd bend 24 of upper shell 20 is on the whole width that is formed on upper shell 20 in the key orientation.The 3rd bend 24 has bool 29, and it is corresponding with pivot connecting portion C1 and towards the direction opposite with upper plate 21 bending (seeing Fig. 6,8B, 9B and Figure 10 B) that meets at right angles.Shown in Fig. 9 A, the flat shape of the flat shape of observed each bool 29 and rectangular opening 52 is corresponding when upper shell 20 is in open mode.The development length of bool 29 and its length of seeing in the key orientation are than short slightly in the length of A-P direction and the rectangular opening 52 seen in the key orientation.
Although omitted diagram, the 3rd bend 24 has with rectangular opening 51 corresponding parts (seeing Fig. 4 A) and respectively is formed with bool, and it is crooked similar to bool 29.
Shown in Fig. 6 and Fig. 8 A to Figure 10 B, each conjugate foramen 28 is formed into the root of the bool 29 of the 3rd bend 24 from the root 24a of the 3rd bend 24, and compared with bool 29, root 24a places the position of more close second bend 23.Particularly, the 3rd bend 24 is formed with the wide cut correspondence 28b of portion and is formed with the corresponding in a narrow margin 28a of portion at the root place of bool 29 at root 24a place.Wide cut correspondence 28b of portion and the corresponding in a narrow margin 28a of portion form continuously to form a conjugate foramen 28.
The wide cut correspondence 28b of portion is long at the corresponding in a narrow margin 28a of portion of left ratio in the key orientation.Particularly, the wide cut correspondence 28b of portion wide width part 61b than engagement tab 61 in the key orientation is long slightly, so that allows wide width part 61b to be inserted among the wide cut correspondence 28b of portion.The corresponding in a narrow margin 28a of portion is enough shorter than the wide cut correspondence 28b of portion and wide width part 61b, so that wide width part 61b is inserted wherein, and long slightly so that narrow width part 61a inserts wherein but the described corresponding in a narrow margin 28a of portion is than narrow width part 61a.
Each bool 29 is formed with threaded hole 29a (seeing Fig. 8 A and Fig. 9 A).On the other hand, the back plate 41 of lower house 40 is formed with the fastener hole corresponding with threaded hole 29a 53 (seeing Fig. 7 A).When upper shell 20 is closed, bool 29 be made into 41 one-tenths of the plates in back in the face of concerning and contacting (seeing Figure 10 A and Figure 10 B) with its front surface.Under this state, bool 29 is fixed on the plate 41 of back (seeing Figure 1B, 7C and Figure 10 A) by making screw 54 pass fastener hole 53 and threaded hole 29a.Similarly, above-mentioned unshowned bool and back plate 41 are formed with fastener hole and the threaded hole (see Fig. 4 A) corresponding with the rectangular opening 51 of the 3rd bend 24.Bool and back plate 41 are by screw 15 be fixed together (with reference to Figure 1B).Use two screws 54 and a plurality of screw 15 to be fixed on the lower house 40 from the upper shell 20 that rear side will be in closed condition.
When being installed in upper shell 20 on the lower house 40, in advance above-mentioned unshowned parts such as dish being installed on the upper shell 20, and parts are arranged on the lower house 40.In described mode hereinafter upper shell 20 is installed on the lower house 40.
At first, shown in Fig. 9 B, make with upper shell 20 about the surperficial acutangulate side of root 24a of the 3rd bend 24 of two bool 29 and upper shell 20 along the engagement tab 61 of the outstanding direction of jut 61 near plate 60.The wide width part 61b of engagement tab 61 is inserted two bools 29 conjugate foramen 28 the wide cut correspondence 28b of portion and engage.At this moment, the surface of the root 24a of the 3rd bend 24 of the bool 29 of upper shell 20 and upper shell 20 cooperates in a side of its acute angle and forms as the V-arrangement shown in from the side and finish the joint guide function.
Mobile upper shell 20 is in being inserted into wide width part the wide cut correspondence 28b of portion and the 3rd bend 24 is contacted with back plate 41, and narrow width part 61a is engaged with conjugate foramen 28.By along the outstanding direction of jut 61 towards moving upper shell 20 with wide width part 61b away from engagement tab 61, make described upper shell 20 be in attitude shown in Fig. 9 B and angle of pivot, can be freely the engagement tab 61b of plate 60 be inserted in the conjugate foramen 28 and with making it and engages, and its conjugate foramen 28 from be formed on upper shell 20 is removed with conjugate foramen 28.
But the angle of pivot of upper shell 20 has about 20 degree allowed bands, and it can freely realize above-mentioned insertion and joint/disengaging.Shown in right view, the admissible angle of pivot scope of measuring clockwise from bool 29 position, angle parallel with wide width part 61b in Fig. 9 B is approximately 20 degree.Below this admissible angle of pivot scope be called " can install/detachable angular region ".Therefore, when product assembling and maintenance, upper shell 20 have with can install/condition of the detachable corresponding attitude of angular region under, upper shell 20 be installed on the lower house 40 and from lower house 40 disassemble.
In off position down, shown in Figure 10 A and 10B, the corresponding 28b of portion with the wide cut of conjugate foramen 28 of the narrow width part 61a of engagement tab 61 engages.In addition, bool 29 contacts with the front surface of back plate 41, and the edge part of the wide cut correspondence 28b of portion on root 24a side contacts with the bend 61x of the rear surface of engagement tab 61.As a result, even attempt dislocation upper shell 20 on the outstanding direction of wide width part 61b, because the present attitude of upper shell 20 keeps present situation constant, then can not dislocation upper shell 20, so the closed condition of upper shell 20 is firmly kept.
Particularly, because bool 29 and back contacting of plate 41, dislocation upper shell 20 backward then.Because bending that the end of the root 24a on the wide cut correspondence 28b of the portion side contacts with the bend 61x of plate 60 and the part that is positioned at the engagement tab 61 of the plate 60 on the bend 61x recedes, then can not be forward and the straight upper shell of dislocation up 20.Because the 3rd bend 24 of upper shell 20 and the last end in contact of the back plate 41 of lower house 40, dislocation upper shell 20 downwards then.As a result, the rearward end 20a of upper shell 20 is locked in pivot connecting portion C1 place, causes it can not be by dislocation on A-P direction and vertical direction.Therefore, upper shell 20 will never by mistake break away from from lower house 40 at pivot connecting portion C1 place.Because upper shell 20 is temporarily fixing by this way, therefore implements the fastening operation of postorder easily.
In off position down, screw 54,15 and back plate 41 are tightened from rear side and are engaged (seeing Figure 1B and Fig. 7 C).Then, from last lower flange 47 and upper flange 27 are tightened be fixed together (seeing Fig. 4 B) with screw 49.As a result, from the back with from last upper shell 20 is fixed on the lower house 40.In addition, implement fader executive component 14 is installed in operation and other operation (seeing Fig. 4 B and Fig. 4 C) of fader installation portion 13.
After the product manufacturing is finished, need sometimes upper shell 20 is disassembled to implement maintenance etc. from lower house 40.In this case, dismounting arm 70 knockout screw 54,15 (seeing Figure 1B and Fig. 7 C) from the shell 10 then.Then, pivot upper shell 20 contacts with plate 60 at contact site P2 place up to the root 24a of the 3rd bend 24 on the direction opening, as shown in Figure 6.
At this moment, the corresponding in a narrow margin 28a of portion of conjugate foramen 28 engages with the narrow width part 61a of engagement tab 61, and the edge part of bool 29 (end of the bool 29 on narrow width part 61a side) contacts with the front surface of narrow width part 61a at contact site P1 place.Under this state, upper shell 20 is opened, and wherein the 3rd bend 24 recedes slightly with upper plate 21 relative vertical direction.
Be under the open mode at upper shell 20, the corresponding in a narrow margin 28a of portion engages with narrow width part 61a, even attempt moving up upper shell 20, interfere the lower end of corresponding in a narrow margin 28a of portion and wide width part 61b, therefore, and can not mobile further upper shell 20.Since between bool 29 and the narrow width part 61a in the contact at contact point P1 place, so dislocation upper shell 20 backward, and owing between the 3rd bend 24 and the plate 60 in the contact at contact site P2 place, so dislocation upper shell 20 forward.Because the last end in contact of the 3rd bend 24 and back plate 41, so dislocation upper shell 20 downwards.As a result, the rearward end 20a of upper shell 20 is locked in pivot connecting portion C1 place substantially, to such an extent as to can not be on A-P direction and vertical direction by dislocation.Therefore, will never by mistake upper shell be disassembled from lower house 40 at pivot connecting portion C1 place.
When upper shell 20 was in open mode, the center of gravity of upper shell 20 was positioned on the extended line of vertical line L shown in Figure 62, and the center of gravity of upper shell 20 is in the back that is positioned at plate 60 on the A-P direction (between the 3rd bend 24 and upper plate 21) thus.Therefore, because the deadweight of upper shell 20, C1 applies clockwise moment of torsion to the pivot connecting portion.At contact site P1, the P2 place produces the reacting force with this moment of torsion coupling.
As a result, even operator's hand is removed from the upper shell 20 that is in open mode, upper shell 20 is also firmly kept attitude.Therefore, under open mode, upper shell 20 will never by mistake pivot on closing direction.In maintenance etc., under the situation that upper shell 20 stays open, be arranged on that parts in the lower house 40 can be checked safely and replacement etc.In order making upper shell 20 firmly to be bearing under the open mode, preferably should to strengthen contact site P1, the vertical range between the P2.
In this embodiment, when upper shell 20 was in open mode, the root 24a of the 3rd bend 24 among the rearward end 20a of upper shell 20 contacted (see figure 6) at contact site P2 place with plate 60.In other words, root 24a is by back plate 41 indirect contacts of plate 60 with lower house 40.On the other hand, under the integrally formed situation of the back plate 41 of plate 60 and lower house 40, the root 24a in upper shell 20 directly contacts with back plate 41.
Equally in the product assembling process, engage with pivot connecting portion C1 at upper shell 20 and to keep thus under the state that upper shell 20 is in open mode, rather than under upper shell 20 and lower house 40 state fully separately, parts can be installed on the lower house 40.In this mode, there is degree of freedom aspect the formulation operating process.
The engagement tab 61 recurvate angles of plate 60, that is, the outstanding angle that forms of the relative vertical direction of wide width part 61b approximates 45 degree greatly, but can be set to from the angle of zero degree to 90 degree scope.
Only when the upper shell relative bonding jut 61 that will remain on predetermined angle of pivot place is mobile on the direction parallel with the outstanding direction that forms of wide width part 61b, remove as long as wide width part 61b can be inserted in the conjugate foramen 28 and from conjugate foramen 28, just the angle of just having mentioned can be set arbitrarily.This predetermined pivot corner is in the scope at above-mentioned installation the/detachable angle.Especially, when upper shell 20 is in almost closing state following time (seeing Figure 10 A and Figure 10 B), by in contact between the bend 61x of the wide cut correspondence 28b of portion of conjugate foramen 28 and engagement tab 61 and the contact between bool 29 and back plate 41, realize preventing the separated function of joint between engagement tab 61 and the conjugate foramen 28.By considering foregoing, carry out this design to guarantee to install/the detachable scope at angle.
According to this embodiment, only when be in can install/when mobile, wide width part 61b and the wide cut correspondence 28b of portion can insert and remove (seeing Fig. 9 A and Fig. 9 B) relative to one another on the outstanding direction that forms of wide width part 60b for the upper shell 20 of the detachable corresponding attitude of angular region.Therefore, only when upper shell 20 is in half-open position, can easily upper shell 20 be installed on the lower house 40 and from lower house 40 and disassembles, make and when assembling and maintenance, improve security and work efficiency becomes possibility.
Especially, when upper shell 20 is in open mode, (see Fig. 8 A and Fig. 8 B), prevent that by the joint between wide width part 61b and the corresponding in a narrow margin 28a of portion wide width part 61b and conjugate foramen 28 from inserting relative to one another and removing on the outstanding direction that forms of wide width part 61b.Therefore, when upper shell 20 is in open mode, can prevent that upper shell 20 by mistake breaks away from from lower house 40.
When upper shell 20 is in closed condition (with reference to Figure 10 A and Figure 10 B), because the joint between the front surface of the back plate 41 of the bool 29 of upper shell 20 and lower house 40, and the joint between the bend 61x of wide cut correspondence 28b of portion in upper shell 20 and plate 60, prevent that conjugate foramen 28 and wide width part 61b from inserting relative to one another and removing on the outstanding direction that forms of wide width part 61b.Therefore, can prevent that the upper shell 20 that is in closed condition by mistake breaks away from lower house 40.
In addition, when upper shell 20 is in open mode,, therefore can improve processibility and security because the open mode of upper shell 20 is firmly to be kept by contact and joint at contact site P1, P2 place.
In addition,, from last the lower flange 47 of lower house 40 and the upper flange 27 of upper shell 20 are fixed together (seeing Fig. 4 B), and from left side and right side arm 70 are fixed on the shell 10 and make it invisible to cover screw 49 with screw 49 according to this embodiment.Therefore, under the state that rotates that upper shell and lower house are faced up, upper shell 20 can be fixed on the lower house 40.In addition, can make screw 49 invisible, therefore improve outward appearance by arm 70 so that the appearance of nature to be provided.Especially, the 70a of yielding portion in the arm 70 covers whole upper flange 27 and lower flange 47 makes it invisible owing to be arranged on, and therefore can further improve outward appearance.With only the structure that upper shell and lower house are fixed together is compared by hinge, this embodiment can guarantee the appropriateness electric conductivity.
When upper shell 20 is in closed condition, lower flange 47 and upper flange 27 (seeing Fig. 2 B) only need face with each other so that make it can be secured to one another and fixing.Therefore, the plate shape that described lower flange 47 and upper flange 27 are formed such as flange is unnecessary.
Straight-line is arranged screw 49 (seeing Fig. 4 B) in vertical direction, but as long as it is just tightened from above and can be at a slight tilt.
, only need structure, arm 70 is set makes it invisible by making the screw 49 invisible viewpoints of improving outward appearance from only so that cover screw 49 at least.
In this embodiment, arm 70 is fixed on the left-side member 25L of upper shell 20 and right side member 25R goes up and is fixed on the left-hand face 42L and right lateral surface 42R of lower house 40, and can be with it fastening and be fixed on any of upper shell 20 and lower house 40.
Arm 70 can be made by the material except that resin, for example timber.In this case, can wait to beat groove by counterbore with the 70a of yielding portion corresponding grooves portion.
In the above-described embodiment, the wide width part 61b of the engagement tab 61 of plate 60 is only grown than narrow width part 61a on left-hand, but do not limited by this.As shown in figure 11, wide width part can extend left and to the right.
Figure 11 represent with plate 60 and conjugate foramen 28 at pivot the accordingly vertical view of connecting portion C1 of the improvement that changes in shape.As shown in Figure 11 accordingly with Figure 10 A, wide width part 61b extends more to the left and to the right than narrow width part 61a, and engagement tab 61 integral body form T shape.Thereby in the conjugate foramen 28 of the rearward end 20a of upper shell 20, the wide cut correspondence 28b of portion than the corresponding 28a of portion in a narrow margin more to the left and elongation to the right.This structure realize with by the same or analogous advantage of advantage that above-mentioned embodiment obtains.
The engagement tab 61 of plate 60 not only can recede and also can turn forward, shown in Figure 12 A to Figure 12 C.
Figure 12 A to Figure 12 C is the view of the improvement of expression pivot connecting portion C1.Figure 12 A to Figure 12 C and Figure 10 B, 9B are corresponding with Fig. 8 B, the closed condition of expression upper shell 20, the state that upper shell 20 pivots and the open mode of upper shell 20.Shown in Figure 12 A to Figure 12 C, the wide width part 61b of engagement tab 61 turns forward.The plate 60 that is fixed on the front surface of back plate 41 of lower house 40 can be fixed on the rear surface of back plate 41, and can be integrally formed with back plate 41.Except the direction that tilts, the structure of plate 60 is identical with the structure of above-mentioned embodiment.
The 3rd bend 24 of the rearward end 20a of upper shell 20 comprises root 24a but does not comprise the corresponding parts with end side half 24b of.In others, the structure of the 3rd bend 24 is identical with the structure of above-mentioned embodiment.
According to the structure of this improvement, when upper shell was opened or closed, wide width part 61b and the wide cut correspondence 28b of portion can insert and remove relative to one another.Therefore, guarantee to install/detachable angular region (seeing Figure 12 B).
When upper shell 20 is in closed condition (seeing Figure 12 A) or is in open mode (seeing Figure 12 C), situation shown in Figure 10 A and Figure 10 B and Fig. 8 A and Fig. 8 B, the rearward end 20a of upper shell 20 is locked in pivot connecting portion C1 place, so that it is in A-P direction and in vertical direction can not be by dislocation.Therefore, upper shell 20 will never by mistake break away from lower house 40 at pivot connecting portion C1 place.
But when upper shell was in open mode (Figure 12 C), said structure can not prevent the pivoting action on closing direction.Be suitable for the supporting member that between the front end of lower house 40 and upper shell 20, engages in order firmly to keep the open mode of upper shell 20, for example to provide, or some other measure is provided is necessary.
According to the improvement shown in Figure 12 A to Figure 12 C, except that not needing hand by the operator to support and firmly keep the advantage of open mode of upper shell 20, can obtain by the advantage that structure obtained shown in Figure 1A to Figure 10 B.
In above-mentioned embodiment and improvement, engagement tab 61 is arranged in the lower house 40 and conjugate foramen 28 is arranged in the upper shell 20.If do not need to guarantee satisfied outward appearance, then described engagement tab can be arranged in the upper shell 20 and described conjugate foramen can be arranged in the lower house 40.
In keyboard unit KB and the side bed 44,45 any or both can be arranged in the upper shell 20 but not in the lower house 40.
From only upper shell 20 being fixed on the viewpoint on the lower house 40, in the rotation that faces up of upper shell and lower house, and make screw 49 invisible so that the appearance of nature to be provided, thus improve under the situation of outward appearance, do not require that upper shell 20 engages pivotally with lower house 40.For example, upper shell can separate fully with lower house, and can be from placing on the lower house and being fixed on the lower house.Alternatively, can adopt and use the pivot be suitable for the pivot nail that inserts and remove or some other mechanism to replace to use pivot connecting portion C1.Also can use by hinge etc. makes upper shell 20 be connected the structure that moves pivotally all the time with lower house 40.
Claims (5)
1. the shell mechanism of an electric keyboard instrument, it has the shell of being made up of lower house separated from one another and upper shell, described upper shell is suitable for described relatively lower house and pivots between the opening and closing state, and described shell is to be fixed on the described lower house by the described upper shell that will be in closed condition to realize, comprising:
At least one jut, it is formed in any rearward end of described upper shell and described lower house regularly; And
At least one conjugate foramen, it is formed in another rearward end of described upper shell and described lower house,
Wherein said upper shell and described lower house be suitable for described conjugate foramen and insert described conjugate foramen and the jut that engages between be pivoted relative to each other on the direction that opening and closing around the junction surface, and
When wherein only being in predetermined pivoting angle in described upper shell is opening and closing pivoting action on the direction, described jut and described conjugate foramen are suitable for relatively being inserted and removing each other on the outstanding direction that forms of described jut.
2. the shell mechanism of electric keyboard instrument according to claim 1, wherein said jut comprises narrow width part and wide width part, from the key orientation, described wide width part is set at a side of close described jut end with respect to described narrow width part, and has the length longer than the length of described narrow width part
Described conjugate foramen comprises the wide cut correspondence portion with the wide width part insertion width wherein that allows described jut, and form and have a corresponding in a narrow margin portion that does not allow described wide width part to insert wherein but allow described narrow width part insertion width wherein in abutting connection with described wide cut correspondence portion
When having when on the outstanding direction that forms of described jut, relatively moving with the described upper shell of the corresponding attitude of predetermined pivot angle and described lower house, described wide width part is suitable for inserting described wide cut correspondence portion and can removes from described wide cut correspondence portion, and
When described upper shell is in open mode, because the joint between described wide width part and the described corresponding in a narrow margin portion prevents that described jut and described conjugate foramen from relatively being inserted and removing each other on the outstanding direction that forms of described jut.
3. the shell mechanism of electric keyboard instrument according to claim 2, wherein said jut is outstanding to be formed, with upwards and turn forward and tiltedly extend from the described rearward end of described lower house,
Described conjugate foramen is formed in the described rearward end of described upper shell, and
When described upper shell is in closed condition, because the front surface of the joint between the rearward end of described upper shell and the rearward end of described lower house and the inclination of described jut and the joint between the described conjugate foramen prevent that described jut and described conjugate foramen from relatively being inserted and removing each other on the outstanding direction that forms of described jut.
4. the shell mechanism of electric keyboard instrument according to claim 2, wherein said jut is outstanding to be formed, with upwards and retreat and tiltedly extend from the described rearward end of described lower house,
Described conjugate foramen is formed in the described rearward end of described upper shell, and
When described upper shell is in closed condition, because the rear surface of the joint between the rearward end of described upper shell and the rearward end of described lower house and the inclination of described jut and the joint between the described conjugate foramen prevent that described jut and described conjugate foramen from relatively being inserted and removing each other on the outstanding direction that forms of described jut.
5. the shell mechanism of electric keyboard instrument according to claim 2, wherein said jut is outstanding to be formed, with upwards and retreat and tiltedly extend from the rearward end of described lower house,
Described conjugate foramen is formed in the described rearward end of described upper shell, and
When described upper shell is in open mode, because the direct or indirect joint between the rear surface of the described rearward end of the joint between the described narrow width part of described jut and the described corresponding in a narrow margin portion of described conjugate foramen and the described rearward end of described upper shell and described lower house, described upper shell is suitable for maintaining open mode.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-352191 | 2006-12-27 | ||
| JP2006352191 | 2006-12-27 | ||
| JP2006352190 | 2006-12-27 | ||
| JP2006352191A JP5034493B2 (en) | 2006-12-27 | 2006-12-27 | Electronic keyboard instrument housing structure |
| JP2006-352190 | 2006-12-27 | ||
| JP2006352190A JP5151147B2 (en) | 2006-12-27 | 2006-12-27 | Electronic keyboard instrument housing structure |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105523534A Division CN101980334B (en) | 2006-12-27 | 2007-12-26 | Housing structure of electronic keyboard musical instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101211556A CN101211556A (en) | 2008-07-02 |
| CN101211556B true CN101211556B (en) | 2011-04-06 |
Family
ID=39611537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007103056352A Active CN101211556B (en) | 2006-12-27 | 2007-12-26 | Housing structure of electronic keyboard musical instrument |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5151147B2 (en) |
| CN (1) | CN101211556B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5453979B2 (en) * | 2009-07-23 | 2014-03-26 | ヤマハ株式会社 | Electronic keyboard instrument housing structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1700302A (en) * | 2001-09-19 | 2005-11-23 | 雅马哈株式会社 | Electronic keyboard musical instrument |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60119162U (en) * | 1984-01-23 | 1985-08-12 | 株式会社 ナカヨ通信機 | Phone number card case mounting structure |
| JPS6210361U (en) * | 1985-07-05 | 1987-01-22 | ||
| JPH0234209Y2 (en) * | 1986-06-04 | 1990-09-13 | ||
| JP3229524B2 (en) * | 1995-07-19 | 2001-11-19 | 日本車輌製造株式会社 | Rail car lid opening and closing device |
| JP3976023B2 (en) * | 2001-09-19 | 2007-09-12 | ヤマハ株式会社 | Electronic keyboard instrument |
| JP4359886B2 (en) * | 2003-07-04 | 2009-11-11 | とも子 濱洲 | Detachable lid device |
-
2006
- 2006-12-27 JP JP2006352190A patent/JP5151147B2/en not_active Expired - Fee Related
-
2007
- 2007-12-26 CN CN2007103056352A patent/CN101211556B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1700302A (en) * | 2001-09-19 | 2005-11-23 | 雅马哈株式会社 | Electronic keyboard musical instrument |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2005-107462A 2005.04.21 |
| JP特开2006-23411A 2006.01.26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5151147B2 (en) | 2013-02-27 |
| JP2008164778A (en) | 2008-07-17 |
| CN101211556A (en) | 2008-07-02 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Inventor after: Takeshi Ando Inventor before: Sugimoto Ryutaro Inventor before: Takeshi Ando |