JP3239888B2 - Keyboard device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard device such as an electronic musical instrument, and more particularly, to a plurality of mutually different keys swingable to a common mounting portion via fulcrum portions. support multiple key was
The present invention relates to a keyboard device provided with a keyboard unit in which units are formed by overlapping common mounting portions. 2. Description of the Related Art As a conventional keyboard device of this kind, for example, one disclosed in Japanese Patent Publication No. 57-3080 is known. This keyboard device divides a one-octave keyboard into three structures, one structure consisting of five black keys and two structures formed by combing white keys every other. It is. [0003] That is, the white key structure, which is a plastic molded product, has a comb-shaped first unit composed of four keys of a C key, an E key, a G key, and a B key, and a D key, an F key, and an A key. And a comb-shaped second unit consisting of three keys.
In each of these three structures, a key (key) portion, a mounting strip portion, and a hinge connecting portion for connecting them are integrally formed of plastic. Therefore, in such a keyboard device,
The mounting strips of the structure consisting of a black key, the structure consisting of four white keys, and the structure consisting of three white keys are overlapped and screwed to a frame for assembly. [0005] However, in such a conventional keyboard device for an electronic musical instrument, in the case of a one-octave keyboard, the two white key structures are superimposed on each other. There is no positioning means in this case, so that the skill is required for the assembling work, and the keys, especially the white keys, are located in adjacent portions (the gap between the E key and the F key, the gap between the B key and the C key). In other words, there has been a problem that the appearance may be impaired due to irregularities. In other words, a portion where white keys are lined up without a black key interposed therebetween is likely to be noticeable when irregularities due to mounting, manufacturing, and the like occur. Therefore, errors in this portion must be minimized as much as possible. I couldn't do that. The present invention has been made to solve such a problem, and has a plurality of structures as described above .
That a plurality of key unit having a plurality of different keys of predetermined key region, in the key <br/> Release device attached to the support member by overlapping the respective mounting strip portions (common mounting unit), the key The unit can be positioned on the support member easily and accurately so that adjacent keys
The purpose is to prevent gaps from becoming irregular. [0008] In order to achieve the above object, the present invention provides a support member and a support member attached to the support member.
Keyboard device with a keyboard unit that can be configured as follows
I do. The keyboard unit includes first, second, and third key units.
Each key unit has a key unit within a predetermined key range.
Multiple keys and a common key that swingably supports each key
Attachment part, fulcrum part connecting the common attachment part and each key
And a common mounting of the first to third key units.
The parts are assembled one on top of the other
You. [0009] The first to third key units are
Either one of the other two key
By mating on both sides of the knit, three
No positioning each other in the Tsu DOO, the first to third
At least the upper SL other of the common mounting portion of the key unit of
The sale of one and the support member to be fitted to the two key unit
Chi, either one to only set a projection, Rutotomoni provided an insertion portion whose projection in the other is fitted, the insertion portion is fitted with its projections
Key units that are merged are positioned relative to other key units.
In this state, the support member is supported by the support member . In this keyboard device, when each of the first to third key units is mounted on the support member, it is fitted with at least both of the other two key units of the common mounting portions.
And one common mounting portion and the support member is, when it is positioned by fitting the protrusion and the insertion portion, one of the common intake
The other two key units that are overlapped and fitted on the attachment
Also it is to be positioned in the common mount. Therefore, a keyboard unit consisting of a support member and three key units
Since the whole of the positioning performed easily and accurately, and can be a gap of a key with adjacent to avoid irregular. The present invention also provides a support member and a support member.
Keyboard unit with multiple keyboard units
The keyboard unit as described above.
And the weight of each of the first to third key units.
At least the uppermost key unit
The common mounting portions of the slots extend in the key arrangement direction and are adjacent to each other.
The key unit located at the top of the keyboard unit
In the state of being joined, so that it is supported by the support member
I do. This allows the position of adjacent keyboard units to be
Can easily and accurately determine and maintain continuity
You. An embodiment of a keyboard device according to the present invention will be described below in detail with reference to the drawings. FIG.
FIG. 1 is a principle diagram showing a schematic configuration of one embodiment of a keyboard device according to the present invention. The keyboard device shown in FIG. 1 includes two keyboard units 7 and 17 having the same configuration. Each of the keyboard units 7 and 17 includes a first keyboard unit 9 and a second keyboard unit 11, respectively.
And fitting means 15. The first keyboard unit 9
Is a first plurality of keys 1 in a predetermined key range to be pressed,
A first common mounting portion 5 for swingably supporting the first plurality of keys 1 and a first fulcrum portion 3 for connecting the first common mounting portion 5 and the first plurality of keys 1 respectively. And these are integrally formed of resin. The second keyboard unit 11 is a key belonging to the predetermined key range, and is a second key different from the first plurality of keys 1.
A plurality of keys 2, a second common mounting portion 6 for swingably supporting the second plurality of keys 2, and a connection between the second common mounting portion 6 and the second plurality of keys 2, respectively. And a second fulcrum portion 4, which are integrally formed of resin. The fitting means 15 includes a first common mounting portion 5 and a second
The first keyboard unit 9 and the second keyboard unit 11 are provided at an intermediate portion of the common mounting portion 6 except for the end in the key arrangement direction.
When the keyboard unit 7 or 17 of a predetermined key range is formed by combining the above, the positioning unit is used to position the keyboard unit portions 9 and 11 by fitting. Further, the first keyboard unit portions 9, 9 of the keyboard unit 7 and the keyboard unit 17 arranged in parallel are respectively provided.
The unit connecting means 19 is provided at the connecting portion of the first common mounting portions 5 and 5. In this keyboard device, when the first keyboard unit 9 and the second keyboard unit 11 are combined to form the keyboard unit 7 or 17 in a predetermined key range, the fitting means 15 is fitted. As a result, the first keyboard unit 9
And the second keyboard unit 11 are positioned. Thereby, the position of each first key 1 and second key 2 is determined. Therefore, the keyboard units 9 and 11 can be accurately positioned. That is, after the keyboard units 7 and 17 in a predetermined key range are formed, the keys 1 and 2 are not misaligned. Further, the first keyboard unit 9 and the second keyboard unit 11 can be attached to the frame of the keyboard device with an orderly key arrangement easily even by a non-expert. Further, since the first common mounting portion 5 and the second common mounting portion 6 are fitted by the fitting means 15, after the keyboard units 7, 17 in a predetermined key range are formed, the keyboard unit portions 9, 11 are shifted. Not even. Next, a specific embodiment of the keyboard device according to the present invention will be described with reference to FIGS. FIG.
FIG. 3 is an exploded perspective view of an octave key. In this figure, reference numeral 21 denotes a black key unit, which includes five black keys, ie, a C key 23, a D key 24 (not shown in FIG. 2),
A key 25 (not shown in FIG. 2), a G key 26 (not shown in FIG. 2), and an A key 27 are integrally formed by resin molding. Reference numeral 31 denotes a first white key unit composed of four white keys, and includes a C key 33, an E key 34 (not shown in FIG. 2), a G key 35 (not shown in FIG. 2), and a B key 36.
Are integrally resin-molded. That is, this first
The white key unit 31 is formed by integrally molding four keys every other one of seven white keys constituting one octave. Reference numeral 41 denotes a second white key unit comprising three white keys, and is formed by integrally molding a D key 43, an F key 44 (not shown in FIG. 2), and an A key 45 with resin. That is, the second white key unit 41 is formed by integrally molding three keys out of every seven of the seven white keys constituting one octave. Therefore, the one-octave keyboard unit 60 is formed by combining the black key unit 21, the first white key unit 31, and the second white key 41, each of which constitutes a keyboard unit. Here, each of these units 21, 31,
As shown in FIG. 7, each key 41 has a key body 50 having a predetermined length that is depressed when arranged and arranged as a keyboard, and a longitudinal rear end of the key body 50. And a fulcrum part 54 for connecting the key body 50 and the common mounting part 52 integrally with each other. These are integrally formed of resin. The fulcrum (thin hinge) 54 is shown in FIG.
As shown in FIG. 7 and FIG. 7, the first hinge portion 5 has a thin horizontal plate piece 55 whose vertical cross section is H-shaped.
6 and a second hinge portion 58 having a vertical thin plate piece 57 whose horizontal cross section is H-shaped and thin.
0 between the rear end and the common mounting portion 52. Therefore, the fulcrum part 54 is vertically moved (vertical direction) by the first hinge part 56, and left and right direction (horizontal direction) by the second hinge part 58.
In addition, the key body 50 can be bent by a predetermined angle. Each of the common mounting portions 52 of the units 21, 31, and 41 is formed of a plate having the same width.
It is formed so as to extend with a predetermined length in a direction orthogonal to zero. Then, the common mounting portion 52 of the second white key unit 41 is superimposed on the common mounting portion 52 of the first white key unit 31, and furthermore, the common mounting portion 52
The common mounting portion 52 of the black key unit 21 is superimposed on the white keys 33 to 36, 43 to 45 and 5.
A keyboard unit 60 of one octave (predetermined key range) is constituted by the black keys 23 to 27 (see FIGS. 4 and 5). Here, a one-octave keyboard unit 60
, A first white key unit 31 and a second white key unit 41 provided with seven white keys 33 to 36 and 43 to 45
Are positioned by the first positioning means 61. The one-octave keyboard unit 60 and the one-octave keyboard unit on the lower or higher frequency side than this are positioned by the second positioning means 71 in a predetermined direction such as the key arrangement direction. That is, as shown in FIG. 2, the first positioning means 61 has a hole 63 formed substantially at the center in the length direction (key arrangement direction) of the common mounting portion 52 of the first white key unit 31. And the common mounting portion 52 of the second white key unit 41
And a protrusion 65 which is formed at a substantially central portion in the length direction (key arrangement direction) so as to protrude downward so as to fit into the hole 63. In other words, when the first white key unit 31 and the second white key unit 41 are combined to form a keyboard unit 60 of one octave, the first white key unit 31 and the white key unit 41 are positioned. 1 positioning means 61
Are provided in the common mounting portions 52 at the positions of the E key 34 and the F key 44 of the white key units 31 and 41. The common mounting portion 52 of the first white key unit 31 has its upper surface bulged upward in a rectangular shape, and the common mounting portion 52 of the second white key unit 41 also has a rectangular recess corresponding to this shape. Are formed. The rectangular bulge fits into the rectangular dent to determine the position of the common mounting portion 52 in the width direction. The common mounting portion 52 of the black key unit 21
And a common mounting portion 52 of the second white key unit 41, a hole 81 having a similar configuration as a positioning means therebetween.
And a projection 83 are formed respectively. These holes 8
1 and the projection 83 are respectively located on the common mounting portion 52,
It is arranged at an intermediate portion in the length direction (key arrangement direction). The hole 81 is provided on the common mounting portion 52 at the position of the F key 44, and the projection 83 is provided on the common mounting portion 52 at the position of the F key 25. In addition, these common mounting portions 5
2 has the same configuration in that a recess having the same shape as the rectangular bulging portion is formed. The one-octave keyboard unit 60 is configured as described above. However, in the case of configuring a keyboard spanning a plurality of octaves, the keyboard unit 60 of each octave is used.
Positioning between them is required. The second positioning means 71 for performing this positioning is provided with holes 73 having the same configuration as the first positioning means 61 at both ends in the longitudinal direction (key arrangement direction) of the common mounting portion 52 of the first white key unit 31. The projections 75 to be fitted therein are respectively formed. The second positioning means 71 is arranged at the end of the common mounting portion 52 of the keyboard unit 60 constituting one octave in the key arrangement direction. FIG. 3 shows the configuration of the second positioning means 71 in cross section. The three units 21, 31 and 41, which are resin molded products, have three long holes 84, 85 and 86 formed at the same position in the longitudinal direction in the common mounting portion 52 at equal intervals. . As shown in FIG. 3, screws 90 are inserted into these long holes 84, 85, 86, and as a result, the unit assembly is mounted on a resin frame 91 as a whole. Note that, as shown in FIG.
The, at least on top black key unit 21 and the bottom
Common mounting portion 52 of first white key unit 31 (shown in FIG. 2
In the embodiment, the common mounting portion 52 of the intermediate second white key unit is used.
Also, an insertion hole 95 into which the formed horizontal projection 93 is fitted is formed. In the keyboard device according to the above configuration, the keyboard unit 60 of one octave is assembled to the frame 91. In this case, the first white key unit 31 is positioned from above and the second white key unit 41 is overlaid. The positioning at this time is performed by fitting the projection 65 into the hole 63 serving as the first positioning means 61 and fitting the bulging portion into the recess. As a result, the seven white keys 33 to 36,
43-45 are assembled in an array as shown in FIG.
A predetermined gap between the key 34 and the F key 44 (equal intervals in the longitudinal direction)
It is beautifully assembled with. Next, the black key unit 21 is overlaid from above the second white key unit 41. Positioning of both units is performed by fitting the projection 83 into the hole 81 and fitting the bulging portion and the recess in the same manner as described above. After the assembly of the keyboard unit 60 of one octave is completed in this way, the whole is assembled to the frame 91 as shown in FIG. The screws 90 shown in FIG. 3 are then screwed on to secure them. When a plurality of keyboard units 60 are arranged so as to form a plurality of octave keyboards on the frame 91, the positioning between adjacent low-pitched or high-pitched keyboard units 60 is performed in the second manner. This is performed by the positioning means 71. That is, as shown in FIG. 3, a hole 7 formed in the common mounting portion 52 at the position of the B key 36 of the first white key unit 31 for the keyboard unit 60 of a certain octave.
3 shows a C key 33 of the first white key unit 31 with respect to a keyboard unit 60 constituting an octave higher than that.
Positioning is performed by fitting a projection 75 protruding from the lower surface of the common mounting portion 52 at the position shown in FIG. As described above, a keyboard device having a plurality of octave keys 33 on the frame 91 can be assembled very easily. In this case, the positioning means 61, 71
Is located almost in the center in the key arrangement direction of the common mounting portion of each unit, which is the position where deviation and error are smallest in the resin molded product.
The error is small even in a portion where 3, 36 (34, 44) are adjacent to each other, and the appearance can be beautifully assembled. When the key body 50 of the keyboard device is pressed, the first hinge portion 56 of the fulcrum portion 54 bends up and down, and swings up and down about the common mounting portion 52 as a fulcrum as a whole. I do. When a switch attached to a predetermined portion of the frame 91 is turned on, a predetermined musical sound is generated. The seven white keys constituting the one-octave keyboard are composed of a first white key unit integrally including an F key 44, an A key 45, a C key 33, and an E key 34, a G key 35, B key 3
6, the D key 43 may be divided into a second white key unit and a second white key unit. In this case, when the first white key unit and the second white key unit are combined to form a one-octave keyboard unit, first positioning means for positioning these white key units. Are disposed in the common mounting portions 52 (substantially central portions in the key arrangement direction of the common mounting portions) at the positions of the A key 45 and the B key 36 of these keyboard units. When a keyboard unit of one octave higher or lower than this one-octave keyboard unit is arranged in parallel with this one-octave keyboard unit, a second positioning means for positioning between the keyboard units of each octave is provided. Are arranged at the end of the common mounting portion of the keyboard unit of each octave in the key arrangement direction, that is, at the position of the E key 34 and the position of the F key 44. Further, as the first and second positioning means, both the projections and the holes are used, and the common mounting portions are vertically overlapped. However, the positioning means between the common mounting parts is not limited to these.
In addition, positioning means having another structure can be adopted.
For example, instead of the hole, a groove may be formed, and instead of the protrusion, a protrusion may be formed to be engaged with and fitted into the groove. Further, for example, a corrugated uneven portion may be formed at an end of the common mounting portion so that the common mounting portions are engaged with each other in the left-right direction without being overlapped in the vertical direction. Further, as the positioning means, a positioning engaging portion of each unit may be formed along the longitudinal direction of the key body portion, for example, at the common mounting portion. Needless to say, the shape, size, and the like of the engaging portion for positioning can be appropriately formed. Further, in this embodiment, 1 is used as the predetermined key range.
Although the octave key range has been described, this key range is not limited to one octave, but may be two octaves.
Alternatively, the entire keyboard may be used. As described above, in the keyboard device according to the present invention, when each of the first to third key units is mounted on the support member, at least one of the common mounting portions is provided.
When one common attachment portion and the support member that are fitted with both of the other two key units are positioned by fitting of the protrusion and the insertion portion , the one common attachment portion is overlapped with the one common attachment portion.
The common mounting portion of the other two key units to be fitted and fitted is also positioned . Therefore, the support member and three
Since the entire keyboard unit including the key unit can be easily and accurately positioned, the assembly is easy and the gaps between adjacent keys do not become uneven. Also, a support member
And a plurality of keyboard units attached to the support member.
In a keyboard device equipped with a knit, each keyboard unit
With the first to third key units superimposed
At least the common mounting part of the topmost key unit
The key located at the top of the adjacent keyboard unit
With the support member superimposed on the unit,
Position between adjacent keyboard units.
And continuity can be easily and accurately performed.
You.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a principle diagram showing a schematic configuration of one embodiment of a keyboard device according to the present invention. FIG. 2 is an exploded perspective view showing a main part of a specific embodiment of the keyboard device according to the present invention. FIG. 3 is a sectional view taken along the line III-III in FIG. 2; FIG. 4 is a side view of the vicinity of a fulcrum and a common mounting portion in a state where a keyboard unit is formed by superposing common mounting portions of the units of the embodiment shown in FIG. 2; FIG. 5 is a plan view showing a state in which the keyboard unit is attached to a frame. FIG. 6 is an enlarged longitudinal sectional view showing the vicinity of a fulcrum portion and a common attachment portion of the second white key unit shown in FIG. 2; FIG. 7 is a side view of the white key shown in FIG. 2; DESCRIPTION OF SYMBOLS 1... First plurality of keys, 2... 2nd plurality of keys, 3... 1 fulcrum, 4... 2 fulcrum, 5.
Common mounting parts, 7, 17: keyboard unit, 9: first keyboard unit, 11: second keyboard unit , 15: fitting means (positioning means), 19: unit fitting means, 21: black key unit, 23 ... C key, 24 ... D key, 25 ... F}
Key, 26 ... G key, 27 ... A key, 31 ... first white key unit, 33 ... C key, 34 ... E key, 35 ... G key, 36 ...
B key, 41 ... second white key unit, 43 ... D key, 44 ...
F key, 45 A key, 50 key body, 52 common mounting part, 54 fulcrum, 55 horizontal thin plate piece, 56 first hinge part, 57 vertical thin plate piece, 58 second hinge part , 60 ...
One octave keyboard unit, 61: first positioning means, 63, 81: holes, 65, 83 ... projections, 71: second positioning means, 73: holes, 75: projections, 84, 85, 8
6 ... long hole, 90 ... screw, 91 ... frame, 93 ... horizontal protrusion, 95 ... insertion hole

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G10H 1/34 G10B 3/12

Claims (1)

(57) [Claims] 1. A support member;TheKey attached to support member
A keyboard device having a keyboard unit, The keyboard unit includes first, second, and third key units.
Have Each key unit is A plurality of keys different from each other within a predetermined key range; A common mounting portion for swingably supporting each key, Having a common attachment portion and a fulcrum portion for connecting the keys, The common mounting portions of the first to third key units are vertically
It is assembled by being superimposed onThe first
Any one of the third to third key units is the common mounting portion.
Mates with both of the other two key units at
Position each other with respect to the three units
None, Of the common mounting portion of each of the first to third key units.
At leastOne fitting with the other two key units
OneWith the support memberhome,Set a protrusion on either one
KeOn the other side, there is an insertion part into which the projection is fittedTotoro
To The key unit into which the protrusion and the insertion portion are fitted has another key unit.
In the state where it is positioned with respect to the key unit,
Be supported A keyboard device characterized in that:2. A support member, and a plurality of mounting members attached to the support member.
A keyboard device comprising a number of keyboard units, The keyboard unit includes first, second, and third key units.
Have Each key unit is A plurality of keys different from each other within a predetermined key range; A common mounting portion for swingably supporting each key, Having a common attachment portion and a fulcrum portion for connecting the keys, The common mounting portions of the first to third key units are vertically
Are assembled on top of each other.
To the third key unit in a superimposed state.
The common mounting part of the key unit located at the top
Extends in the arrangement direction and is positioned at the top of the adjacent keyboard unit.
Key unit to be placed In the state
A keyboard characterized by being supported by a support member
apparatus.