JP2008164845A - Lid device of keyboard instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To design a top surface of an instrument main body comprised of a slide lid and a top board to be flat in the state the slide lid is closed, while improving a housing structure of the slide lid for covering keys and reducing the depth of the instrument main body so as to make efficient use of a space in rear part of the keyboard, in a key board instrument. <P>SOLUTION: A guide part 10 comprised of a first guide 1, a second guide 2, and a third guide 3 is provided on the inner side of a side board D. A slide lid 20 is comprised of a front unit 4 and a rear unit 5. The guide part 10 guides shaft parts 41, 42, 51, and 52. The front unit 4, the rear unit 5, and a top board 40 are leveled in the state of closing. The front unit 4 and the rear unit 5 are housed in a lower part of the top board 40 with being overlapped in the state of opening. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a keyboard instrument lid device including a slide-type lid that covers an upper part of a keyboard so as to be freely opened and closed.

Conventionally, as a lid device for a keyboard instrument, for example, Japanese Utility Model Publication No. 7-49511 (Patent Document 1), Japanese Utility Model Publication No. 54-133934 (Patent Document 2), Japanese Utility Model Publication No. 45-33494 (Patent Document 3). Some have been disclosed. In Patent Document 1, one slide lid is housed in the lower part of the top plate when the lid is opened. In Patent Document 2, a slide lid that is refractorably coupled is housed in the lower part of the top plate and the rear part of the keyboard when the lid is opened. The thing of patent document 3 is accommodated in the lower part of a top plate, when the lid | cover divided | segmented into the front and back overlaps up and down when a cover is opened. In addition, the thing of patent documents 2 and 3 can shorten the depth of a top plate with respect to the depth of a slide cover compared with the thing of patent document 1. FIG.
No. 7-49511 Japanese Utility Model Publication No. 54-133835 Japanese Utility Model Publication No. 45-33494

  The thing of patent document 1 has the problem that the depth of the whole musical instrument cannot be made small because the depth of the top plate is required as much as the depth of the slide lid because there is one slide lid (integral). On the other hand, in Patent Document 2 or Patent Document 3, since the slide lid is divided, the depth of the top plate can be shortened, and the depth of the entire instrument can also be decreased.

  However, in Patent Document 2, since a part of the slide lid wraps downward inside the top plate at the rear part of the keyboard, a space is required to wrap around the rear part of the keyboard, and the space at the rear part of the keyboard cannot be used to the maximum. There is a problem. On the other hand, the keyboard lid of Patent Document 3 is provided with coupling metal fittings at the rear portions of the front lid and the rear lid. When the keyboard lid is fully opened, the coupling metal fittings are engaged with each other, and the rear lid is closed when the front lid is closed. It is the structure which connects. Therefore, when the front lid is pulled back to the closed state while the keyboard lid is being opened, the rear lid is not interlocked, and there is a problem that the keyboard lid cannot be properly returned to the closed state.

  By the way, the thing of patent document 2 and the thing of course is a trapezoid in the front-back cross-sectional shape (shape of a side plate) because the keyboard is a two-stage musical instrument of an upper keyboard and a lower keyboard. In addition, the keyboard structure of Patent Document 3 is similarly trapezoidal although the keyboard structure is not clear. On the other hand, although the thing of patent document 1 is a 1 step | paragraph keyboard, it is a structure where the back | top plate of the back was bulky up and down rather than the keyboard surface. However, if the top of the instrument is flat when the lid of the keyboard instrument is closed, the appearance will be smart.

  On the other hand, in the structure of each patent document, it is difficult to flatten the top of the instrument when the lid is closed. Patent Document 1 or Patent Document 2 has a structure in which the slide lid is inserted directly under the top plate, and the top plate must be higher than the slide lid even when the lid is closed. Further, in Patent Document 3, the lid on the near side first moves when the lid is opened, and after a while moves in conjunction with the lid on the rear side to move directly under the top plate. However, it is difficult to flatten the two lids when the lid is closed.

  The present invention provides a keyboard instrument that provides a structure suitable for opening and closing a slide lid in a keyboard instrument, makes it possible to make maximum use of the space at the rear of the keyboard, and makes the top surface of the instrument body substantially flush with each other. The task is to do.

  The lid device for a keyboard instrument according to claim 1 is configured to slide the slide lid along a plurality of left and right guide portions extending from the front to the rear of the musical instrument main body to change from the closed state to the open state. By making the position of the slide lid in the open state below the position in the closed state, the slide lid in the open state can be stored, for example, under the top plate with a simple structure, and the slide lid in the closed state The top surface of the top plate can be made the same height.

  A lid device for a keyboard instrument according to a second aspect of the present invention is the lid device for the keyboard instrument according to the first aspect, wherein the slide lid and the top plate are substantially flush with the upper surface (top surface) in the closed state of the slide lid, It was made to house in the lower part of the top plate in an open state by sliding along.

  According to a third aspect of the present invention, there is provided a lid device for a keyboard instrument according to the first aspect, further comprising a unit in which the slide lid is divided into a plurality of sections, wherein at least one of the guide portions of the plurality of paths is a front end portion in front of the instrument body. Then, one route was used, and the route was divided into a plurality of routes at an intermediate point until reaching the rear end.

  According to a fourth aspect of the present invention, there is provided the keyboard instrument lid device according to the first aspect, wherein the slide lid is constituted by a plurality of divided units, and the plurality of units are coupled by the coupling means in the closed state, and the opening operation is started. A plurality of units are moved together in an integrated manner, and in the process until the transition to the open state, the unit is disengaged and the slide lid is brought to the open position.

  The lid device for a keyboard instrument according to claim 5 is in a closed state by sliding the slide lid along a plurality of left and right guide portions extending from the front to the rear of the instrument body, as in claim 1. In this transition, the slide lid is easily accommodated in, for example, the lower part of the top plate.

  In each of the claims, the guide portion is constituted by a groove, and a pair of shaft portions protruding left and right are provided on the front and rear portions of the slide lid, respectively, and the shaft portion is slidably fitted into the groove. It is good also as a structure which slides a slide lid. In this case, the groove of the guide part is so that the shaft part is at the same height as the top plate when the slide cover is closed, and the shaft part is the lower part of the top plate when the slide cover is open. It is good to configure.

  Moreover, the groove | channel of a guide part may equip the path | route of this groove | channel with the inclination part which inclined downward from the position where a shaft part becomes substantially the same height as a top plate in the closed state to the back of a musical instrument main body. Thereby, when it changes to an open state, a slide lid moves smoothly to a horizontal and the downward direction, and the position of the slide lid in an open state becomes below from the position in a closed state. In the closed state, the slide lid is housed in the lower part of the top plate.

  Moreover, the following structures may be sufficient. The slide lid has two divided units, a front unit on the front side and a rear unit on the rear side. When the slide lid is in the closed state, the rear end portion of the front unit and the front end portion of the rear unit are connected. Connect with The connecting means is configured such that the rear end of the front unit is relatively detachable from the bottom and the front end of the rear unit is detachable from the top. The guide portion includes a first guide for holding the front end portion of the front unit, a second guide for guiding the rear end portion of the front unit and the front end portion of the rear unit, and a third guide for guiding the rear end portion of the rear unit. And have. The second guide guides the path that holds the vertical position of the front end of the rear unit and the rear end of the front unit downward until the transition to the open state (for example, at the position of the rear unit in the open state). It is assumed that the route is branched into two routes. As a result, the front unit and the rear unit can be easily slid with a simple configuration, and the connection between the front unit and the rear unit is released at the position where the two paths branch. You can guide to the bottom.

  Further, when the slide lid is in the open state, the slide lid may be stored above the rear end of the keyboard. As a result, the space behind the keyboard can be effectively used for other functions.

  According to the keyboard instrument lid device of the first aspect, the slide lid in the open state can be stored, for example, under the top board with a simple structure, and the interior of the instrument is made using the full depth of the instrument and the space at the rear of the keyboard. Parts can be arranged.

  According to the keyboard instrument lid device of the second aspect, in addition to the effect of the first aspect, the top surface of the musical instrument body can be designed to be flat when the slide lid is closed.

  According to the lid device for a keyboard instrument of claim 3, in addition to the effect of claim 1, a state in which a plurality of divided units are overlapped with the lower part of the top board by a path branched from one path of the guide portion into a plurality of paths And can be made compact without increasing the overall depth of the instrument.

  According to the keyboard instrument lid device of claim 4, in addition to the effect of claim 1, the plurality of units are moved together in an integrated manner to release the linkage, and then the divided units are moved to the top plate. It can be stored in a state where it overlaps with the lower part of the instrument, and can be made compact without increasing the depth of the entire instrument.

  According to the keyboard instrument lid device of the fifth aspect, similarly to the first aspect, the slide lid in the open state can be stored, for example, under the top board with a simple structure, and the depth of the entire musical instrument and the space at the rear of the keyboard can be reduced. It is possible to arrange the interior parts with maximum use.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view showing an essential part of an electronic keyboard instrument to which the lid device of the embodiment is applied, FIG. 2 is a view showing a guide part in the keyboard instrument, and FIG. 3 is a partially broken perspective view of the keyboard instrument. 1 and 3A show the closed state of the slide lid, and FIG. 3B shows the open state of the slide lid. In FIG. 1, the left side of the drawing is the player side, and hereinafter, when referring to “up / down / left / right” in this keyboard apparatus, “up / down / left / right” as viewed from the player side (keyboard side) at the time of performance. When the “front-rear direction (or front and back)” is pointed out, the performer side is “front, front” and the back side is “back, back”.

  The musical instrument body of this electronic keyboard instrument is composed of a shelf board A, a mouth bar B attached to the front part of the shelf board A, and a rear board C attached to the rear part of the shelf board A. A keyboard device (keyboard unit) 30 having a plurality of keys 30a is attached close to the mouth stick B above. A top plate 40 is attached to the upper end of the rear plate C so as to cover the rear upper part of the instrument body. Side plates D are attached in close contact with the left and right ends of shelf A, mouth bar B, rear plate C, and top plate 40, and the beat tree E is placed on the side plate D at a predetermined interval from the highest and lowest keys of the keyboard device. It is attached inside. Further, a panel portion 50 is attached to the upper rear portion of the keyboard device 30 so as to be separated from the top plate 40.

  A slide lid 20 held by the guide portion 10 of the side plate D is disposed above the keyboard device 30 as described in detail later. In the drawing, the side plate D and the time tree E are shown only on the left side of the instrument body, but it goes without saying that the side plate and the time tree are also attached to the right side. Further, in the following description, the structure of the left side plate D and the guide portion 10 will be described, but the right side plate and the guide portion also have the same structure symmetrically (mirrored) with the left side.

  As shown in FIG. 2, the guide portion 10 is constituted by a groove formed in the side plate D, and the guide portion 10 is constituted by a first guide 1, a second guide 2, and a third guide 3.

  The first guide 1 includes a first groove 11 that forms a horizontal groove from the upper extension position of the mouth bar B to the front end upper extension position of the keyboard device 30, and slightly from the middle in the front-rear direction of the side plate D from the first groove 11. It is comprised with the 2nd groove | channel 12 which inclined linearly below to the position used as the back, and formed the groove | channel.

  The second guide 2 includes a first groove 21 that is substantially the same length as the first groove 11 at the intermediate position of the second groove 12 of the first guide 1 and is formed horizontally, and the first guide 1 A second groove 22 that is linearly inclined downward to a position slightly behind the rear end of the second groove 12 to form a groove, and a lower surface of the second groove 22 from the rear end of the second groove 22. A third groove 23 that forms a groove by steeply inclining downward from a position slightly ahead, and a groove horizontally to a position slightly behind the middle from the third groove 23 to the rear end of the side plate D The fourth groove 24 is formed.

  The third guide 3 includes a first groove 31 which is short and horizontally formed at the front end position of the top plate 40, and a second groove 32 which is inclined downward and steeply downward from the first groove 31 to form a groove. The third groove 33 is formed with a horizontal groove from the second groove 32 to the vicinity of the rear end of the side plate D. Note that an inverted trapezoidal stopper 7 is attached to the side plate D at the rear end position of the third groove 33.

  Thus, the 1st guide 1, the 2nd guide 2, and the 3rd guide 3 have the 2nd grooves 12, 22, and 32 as inclination parts which inclined below from the front to the back of the musical instrument main part.

  As shown in FIGS. 1 and 3 (A), the slide lid 20 has a depth from the upper extended position of the mouth bar B to the front end of the top plate 40 in the closed state, and is 2 at the substantially central portion in the front-rear direction. The front unit 4 and the rear unit 5 are divided into two units. 4 is a partially cutaway view of the slide lid 20 and the top plate 40. The rear end surface 4a of the front unit 4, the front end surface 5a of the rear unit 5, the rear end surface 5b of the rear unit 5 and the front end surface 40a of the top plate 40 are shown in FIG. The inclined surfaces are inclined downward from the front to the rear. Thus, in the closed state, the rear end surface 4a and the front end surface 5a face each other in the front unit 4 and the rear unit 5, and the rear end surface 5b and the front end surface 40a face each other in the rear unit 5 and the top plate 40. Further, these inclined surfaces allow the rear end portion of the front unit 4 to be easily moved to the lower side of the rear unit 5 and the rear end portion of the rear unit 5 to be easily moved to the lower side of the top plate 40. ing.

  Further, connecting metal fittings 6 are attached to both sides of the rear portion of the front unit 4. The connecting fitting 6 has a hook 61 cut out obliquely forward from the rear end of the front unit 4 upward. Further, metal shaft portions 41 and 42 are provided at both front and rear ends of the front unit 4, and metal shaft portions 51 and 52 are provided at the front and rear ends of the rear unit 5, respectively. It is buried and attached.

  With the above configuration, the shaft portion 41 at the front portion of the front unit 4 is fitted in the first guide 1, and the shaft portion 42 at the rear portion of the front unit 4 is fitted in the second guide 2. Further, the front shaft portion 51 of the rear unit 5 is fitted in the second guide 2, and the rear shaft portion 52 of the rear unit 5 is fitted in the third guide 3. Thus, the front unit 4 and the rear unit 5 are held between the side plates D on both the left and right sides.

  As shown in FIGS. 1, 3A and 4, the front unit 4 and the rear unit 5 integrally cover the keyboard device 30 and the panel unit 50 in the closed state. At this time, the shaft portion 51 of the front portion of the rear unit 5 is engaged with the hook 61 of the connection fitting 6, and the front unit 4 and the rear unit 5 are held horizontally at the same height as the top plate 40 by the guide portion 10. Yes. As a result, the top surface of the musical instrument main body composed of the top surface 4A of the front unit 4, the top surface 5A of the rear unit 5 and the top surface 40A of the top plate 40 is flat and has a clean design.

  1 and 5 to 11 are views showing a process of transition of the slide lid 20 from the closed state to the open state, and in FIG. 1 and 5 to 11, the left guide portion 10 and the right shaft portions 41, 42, 51, and 52 are shown. However, the following description will be made on the left and right sides of the guide portion and the shaft portion. Needless to say, it explains the relationship.

  First, when the front end portion of the front unit 4 is pushed backward from the state of FIG. 1, both the shaft portion 42 and the shaft portion 51 are guided by the second guide 2 and move only substantially horizontally. 4a (FIG. 4) pushes the front end face 5a of the rear unit 5. For this reason, the shaft portion 52 of the rear unit 5 is removed from the first groove 31 of the third guide 3 and guided downward by the second groove 32, and the state shown in FIG. 5 is obtained. When the front unit 4 is further pushed, as shown in FIG. 6, the shaft portion 41 is inserted into the second groove 12 of the first guide 1, and the shaft portion 42 and the shaft portion 51 are inserted into the second groove 22 of the second guide 2. The parts 52 are respectively guided by the third grooves 33 of the third guide 3, and the front unit 4 and the rear unit 5 move together in an approximately horizontal manner and simultaneously move downward. At this time, a part of the rear unit 5 is inserted below the top plate 40.

  When the front unit 4 is further pushed, the shaft 51 of the rear unit 5 moves to the upper end of the third groove 23 of the second guide 2 as shown in FIG. Since the shaft portion 42 of the front unit 4 is received from below by the second groove 22 of the second guide 2, the shaft portion 51 passes through the upper end of the third groove 23 as it is, and the second groove 22. Is guided to the rear end portion of FIG. At this time, the rear end surface 5b of the rear unit 5 comes into contact with the stopper 7, and the rear unit 5 is housed in a state where the rear unit 5 sinks into the lower portion of the top plate 40.

  On the other hand, when the shaft portion 42 of the front unit 4 reaches the upper end of the third groove 23, the hook 61 of the connecting bracket 6 is structured to be detached downward from the shaft portion 51, so that the front unit 4 and the rear unit 5 The interlock is released. Accordingly, the shaft portion 42 is guided downward along the third groove 23 as shown in FIG. The second guide 2 has one path at the front front end, and the path branches into a plurality of second and third grooves 22 and 23 at an intermediate point until reaching the rear end. After the interlock is released, the shaft portion 41 of the front unit 4 is guided to the second groove 12 of the first guide 1 and the shaft portion 42 is guided to the fourth groove 24 of the second guide 2 as shown in FIG. Then, only the front unit 4 slides and is stored as it is under the rear unit 5, and the closed state shown in FIG. 11 is obtained.

  The transition from the open state to the closed state is the reverse process. A handle 4b is attached to the upper surface of the front end of the front unit 4. When the front unit 4 is pulled out from under the top board 40 by placing a hand on the handle 4b, only the front unit 4 moves and is moved. Transition is made as shown in FIG. And since the hook 61 of the connecting metal fitting 6 engages with the shaft portion 51 of the rear unit 5 in the state of FIG. 8, the front unit 4 and the rear unit 5 are interlocked by pulling out the front unit 4 as it is. It slides like FIG. 5, and changes to a closed state like FIG.

  In addition, as illustrated in the elliptical blowing portion in FIG. 2, a recessed portion 11 a that is recessed downward is provided at the distal end of the first groove 11 of the first guide 1, and the shaft portion 21 at the distal end of the front unit 1 is recessed in the closed state. You may make it fit in 11a. Thereby, the closed state of the slide lid 20 becomes more stable.

  Further, the connection between the front unit 4 and the rear unit 5 is not limited to the connection fitting as in the embodiment, but may be any form that can be connected and disconnected with the configuration of the present application. For example, a shape may be provided in which a recess is provided at the lower front end of the rear unit 5, a protrusion that protrudes from the lower rear end of the front unit 4 to the rear information is provided, and the protrusion is fitted into the recess. Further, a shaft may be provided on the front unit, and a connecting metal fitting having a notch obliquely rearwardly may be provided on the rear unit, and the notch may be engaged with the shaft.

  It should be noted that operators such as a timbre selection switch and various setting switches may be provided on the panel unit 50 or may be provided on the beat tree E. When operating members are provided on the time tree E, the panel unit 50 may be omitted.

  In the embodiment, the guide portion is formed directly on the left and right side plates, but the guide portion may be provided by a separate member inside the side plates. Further, the shaft portion may be a roller-shaped member, and the shaft portion may be rotated and moved in the groove of the guide portion. The friction force between the groove and the shaft portion may be selected appropriately by selecting the material of the groove and the shaft portion. May be set to characteristics suitable for sliding and holding. Further, the guide portion is not limited to a groove, and may be formed only from a lower surface on which the shaft abuts.

  In the embodiment, the example in which the slide lid is configured by two units has been described, but the slide lid may be configured by two or more units. As the number of units increases, the height direction of the storage space below the top plate increases. Therefore, it is better not to have too many units. Even in the case of two or more units, the guide unit may be configured so that the front unit is housed under the unit immediately after it, as in the embodiment.

It is a sectional side view of the open state which shows the principal part of the electronic keyboard musical instrument to which the cover apparatus of embodiment of this invention is applied. It is a figure which shows the guide part in the keyboard instrument. It is a partially broken perspective view of the keyboard instrument. It is a partially broken view of the slide lid and the top plate in the embodiment. It is a figure which shows the 1st transition process of the slide lid in embodiment. It is a figure which shows the 2nd transition process of the slide lid in embodiment. It is a figure which shows the 3rd transition process of the slide lid in embodiment. It is a figure which shows the 4th transition process of the slide lid in embodiment. It is a figure which shows the 5th transition process of the slide lid in embodiment. It is a figure which shows the 6th transition process of the slide lid in embodiment. It is a figure which shows the open state of the slide lid in embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... 1st guide, 2 ... 2nd guide, 3 ... 3rd guide, 4 ... Front unit, 5 ... Rear unit, 6 ... Connection metal fitting, 10 ... Guide part, 20 ... Slide lid, 30 ... Keyboard apparatus (keyboard part) ), 40 ... Top plate, 50 ... Panel portion, 41, 42, 51, 52 ... Shaft portion, 4A ... Top surface of front unit, 5A ... Top surface of rear unit, 40A ... Top surface of top plate, A ... Shelf Board, B ... Mouth stick, C ... Rear board, D ... Side board, E ... Time signature

Claims (5)

The instrument body,
A top plate covering the rear upper part of the instrument body;
A keyboard portion comprising a plurality of keys disposed at the front of the instrument body;
A slide-type slide lid that exposes the keyboard portion in an open state in a playable state and covers the keyboard portion in a closed state;
A keyboard instrument lid device provided in the instrument body and extending from the front to the rear of the instrument body and having a plurality of guide portions in left and right pairs for guiding movement of the slide lid in the front-rear direction. And
When the slide lid slides along the guide portion, the closed state changes to the open state, and the vertical position of the slide lid in the open state is located below the position in the closed state. A keyboard instrument lid device. The keyboard instrument lid device according to claim 1,
Furthermore, the upper surface of the slide lid and the top plate is substantially flush with the slide lid closed.
A keyboard instrument lid device, wherein the slide lid is shifted to an open state by sliding along the guide portion, and is housed in a lower portion of the top board in the open state. The keyboard instrument lid device according to claim 1,
Further, the slide lid is composed of a plurality of divided units,
At least one of the guide sections of the plurality of paths is one path at the front end portion in front of the musical instrument body, and the path branches into a plurality of points at an intermediate point until reaching the rear end section. A keyboard instrument lid device. The keyboard instrument lid device according to claim 1,
Furthermore, the slide lid is composed of a plurality of divided units, and the plurality of units are connected by a connecting means in the closed state, and the plurality of units move together in an integrated manner when the slide lid opens. Configured as
A keyboard instrument lid device in which the slide lid is opened after the interlock of the units is released in the process until the transition to the open state. The instrument body,
A top plate covering the rear upper part of the instrument body;
A keyboard portion comprising a plurality of keys disposed at the front of the instrument body;
A slide-type slide lid that exposes the keyboard portion in an open state in a playable state and covers the keyboard portion in a closed state;
A keyboard instrument lid device provided in the instrument body and extending from the front to the rear of the instrument body and having a plurality of guide portions in left and right pairs for guiding movement of the slide lid in the front-rear direction. And
A keyboard instrument lid device, wherein the slide lid is slid along the guide portion to make a transition from the closed state to the open state, and to move horizontally and downward during the transition.

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