JP2006139183A - Keyboard instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a keyboard instrument which has casters and nevertheless enables a player to appropriately operate a pedal keyboard without damaging a case and the like. <P>SOLUTION: The keyboard instrument includes a pedal keyboard 3 which extends forward from a lower end of an organ main part 4, is provided freely swingably in a vertical direction and is composed of a plurality of pedals 21 which swing downward when stepped in by a player, casters 5 which are attached to the bottom part of the organ main part 4 and freely movably support the organ main part 4 on a floor face F, and a pedestal 31 which is provided below the pedal keyboard 3 in the state of being placed on the floor face F and on which the downwardly swinging pedals 21 abut accompanying step in of the player. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a keyboard instrument such as an electronic organ having a foot keyboard that a player operates with his / her foot during performance.

  Generally, an electronic organ is known as a keyboard instrument having a foot keyboard. Electronic organs usually generate melodies, harmonies, and accompaniment sounds by operating the keyboard on the top of the organ, while bass sounds are generated by operating the foot keyboard on the bottom of the organ. . The foot keyboard extends in the front-rear direction and is provided so as to be swingable in the up-down direction, and includes a plurality of foot keys arranged in the left-right direction. In addition, since the foot keyboard is operated so that any of the foot keys is stepped on the entire sole of the performer at the time of performance, a relatively large load acts on the stepped foot key. Therefore, in order to prevent an excessive load from acting on the case of the outer shell of the organ body through the foot key, and to prevent the foot key from swinging more than necessary, the foot keyboard is usually When the foot key is depressed and swings downward for a predetermined stroke, the front end of the lower surface is set to an appropriate height so as to come into contact with the floor of the place where the electronic organ is installed.

  Electronic organs usually do not have a caster at the bottom, but they are usually stored in a storage room at a nursing home, school, etc. When the frequency of moving the electronic organ is high, such as when it is necessary to put it in and out of the storage room, it is preferable to attach a caster to the bottom of the organ body. However, in this case, by attaching a caster to the organ body, the organ body is raised from the floor surface, and as a result, the foot keyboard becomes higher than the appropriate height. When operating the foot keyboard in such a state, the foot key that has been depressed may not reach the floor surface.In that case, an excessive load is applied to the foot key, causing the organ body to The case may be damaged.

  Of course, when a caster is attached to the electronic organ, for example, it is conceivable to adjust the height of the foot keyboard as in Patent Document 1 already proposed by the present applicant. In the electronic organ of Patent Document 1, a box-shaped foot key unit including a foot keyboard and an expression pedal is disposed between left and right parent plates that are spaced apart from each other in the left-right direction. The height can be set in four stages. More specifically, the left and right side plates of the foot key unit are each provided with two screw holes arranged side by side, while the left and right parent plates each have a set of two holes arranged side by side. A pair of adjustment holes are provided at an interval in the vertical direction. When adjusting the height of the foot keyboard, after positioning the two screw holes on each side plate of the foot key unit into one of the four sets of adjustment holes on each parent plate, insert screws into each adjustment hole from the outside The foot key unit is fixed between the left and right parent plates by screwing into the screw holes.

  However, in Patent Document 1, while positioning the foot key unit having a relatively large size and weight, or the left and right parent plates in the vertical direction, the screw hole on the foot key unit side and the adjustment hole on the parent plate side are positioned, Furthermore, it is necessary to insert a screw into the adjustment hole and the screw hole, and the height adjustment of the foot keyboard is very complicated.

  The present invention has been made to solve the above-described problems, and even a keyboard instrument having casters can properly operate a foot keyboard without damaging a case or the like. The purpose is to provide.

Japanese Utility Model Publication No. 6-21092

  In order to achieve the above object, the invention according to claim 1 is provided so as to extend forward from the lower end of the musical instrument main body and swing freely in the vertical direction, and swings downward when depressed by a player. A foot keyboard consisting of multiple foot keys, a caster that is attached to the bottom of the instrument body and that supports the instrument body so that it can move freely on the floor, and is placed on the floor below the foot keyboard for performance And a foot key receiving portion against which a foot key swinging downward as a person steps on is provided.

  In this keyboard instrument, the instrument body is movably supported on the floor surface by casters attached to the bottom of the instrument body. Further, when the performer steps on the foot key, the foot key swings downward and comes into contact with a foot key receiving portion provided below the foot keyboard while being placed on the floor surface. When the caster is attached to the instrument body, the instrument body is raised from the floor, and even if the foot keyboard becomes higher than the appropriate height described above, the foot key receiving part is placed on the floor below the foot keyboard. Just by placing it, the foot key that swings downward touches the foot key holder, so there is no need to adjust the height of the conventional foot keyboard and damage the case of the instrument body during performance. Without having to do so, the foot keyboard can be operated appropriately.

  The invention according to claim 2 is the keyboard musical instrument according to claim 1, wherein the foot key receiving portion has the same height as the height from the floor of the instrument body.

  According to this configuration, the height dimension of the foot lock receiving portion is the same as the height from the floor surface of the instrument body, that is, the height of the instrument body raised from the floor surface as the caster is attached to the instrument body. Therefore, the foot key can be swung downward and brought into contact with the foot key receiving portion with the same stroke as when operating the foot keyboard of a keyboard instrument without a caster. Thus, the performer can operate the foot keyboard with the same operation feeling as when playing a keyboard instrument without a caster.

  The invention according to claim 3 is the keyboard instrument according to claim 1 or 2, wherein the foot key receiving portion is fixed to the instrument body.

  According to this configuration, since the foot key receiving portion is fixed to the instrument body, the foot key receiving portion may rattle or move on the floor even if the foot key repeatedly abuts during performance. Absent. In addition, when the keyboard instrument is moved on the floor before and after its use, the foot key holder can be moved together with the instrument body.

  According to a fourth aspect of the present invention, in the keyboard musical instrument according to the third aspect, the foot key receiving portion and the caster are detachably attached to the musical instrument main body.

  According to this configuration, in a keyboard instrument in which a caster and a foot key receiving part are attached to the instrument body, when it is no longer necessary to move the keyboard instrument, such as when the keyboard instrument is always installed at a fixed location, By removing the caster and the foot key receiving portion from the instrument main body, the foot keyboard can be operated in a normal use state (the foot key depressed during performance comes into contact with the floor surface).

  According to a fifth aspect of the present invention, in the keyboard instrument according to any one of the first to fourth aspects, the foot key receiving portion is provided so as to protrude forward from the foot keyboard.

  According to this configuration, the player can play the portion protruding forward from the foot keyboard of the foot key receiving portion as his / her own footrest, and the foot keyboard can be moved greatly from the state where the foot is attached to the floor surface. As compared with the case of operating, the foot keyboard can be operated more easily.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an electronic organ to which a keyboard instrument according to an embodiment of the present invention is applied. As shown in the figure, this electronic organ 1 (keyboard instrument) is a general electronic organ body (hereinafter referred to as “organ body 4”) having two upper and lower hand keyboards 2 and 2 and a foot keyboard 3. Four casters 5 (only three are shown in FIG. 1) are attached to the bottom. In the electronic organ 1, the foot keyboard 3 is set to an appropriate predetermined height from the floor surface F before the casters 5 are attached.

  The organ main body 4 (musical instrument main body) includes the above-described hand keyboards 2 and 2 and various switches, and includes a performance section 11 that is operated by a player's hand and a stand 12 that supports the performance section 11 from below. It is configured. The stand 12 includes a pair of left and right stand bodies 13 and 13 arranged at substantially the same width as the left and right widths of the performance unit 11 and extends in the left and right direction between the lower ends of both stand bodies 13 and 13. And a pedal base 14 connected thereto.

  Each stand body 13 extends in the vertical direction, and has a side plate 15 that supports the performance unit 11 at the upper end and a bottom portion of the side plate 15 in the front-rear direction (front side as viewed from the performer is “front”, and the back side is “rear”. ”) And a wife base 16 fixed so as to extend. Each base 16 extends forward from the side plate 15, and the two casters 5 and 5 are attached to the bottom surface at a predetermined interval in the front-rear direction.

  Each caster 5 is rotatable about a horizontally extending axis and a vertical axis. As shown in FIG. 2, each caster 5 is detachably attached to the bottom surface of the tread base 16 with a screw or the like via an attachment plate 5a at the upper end. Thus, the organ body 4 is supported on the floor surface F so as to be movable. Each caster 5 has a predetermined height. Therefore, when the four casters 5 are attached to the bottom surface of the organ main body 4, the organ main body 4 becomes the floor surface correspondingly (height H). It is raised from F. Each caster 5 is provided with a stopper mechanism (not shown) so that the electronic organ 1 can be fixed on the floor surface F by the stopper mechanism.

  As shown in FIG. 1, the pedal base 14 is provided with an expression pedal 17 for changing the volume and tone color during performance on the upper surface, and the foot keyboard 3 is provided on the left half. . The foot keyboard 3 is for generating a bass sound during performance, and is composed of a plurality of (13 in this embodiment) foot keys 21 extending in the front-rear direction and arranged in the left-right direction. More specifically, the foot keyboard 3 extends forward through a horizontally long opening 14a provided on the front surface of the pedal base 14, and has a relatively long foot key 21a and a shorter foot key (black key). ) 21b, and each of the foot keys 21 is configured to be swingable in the vertical direction around a fulcrum (not shown) in the pedal base 14. As shown in FIG. 2, a hemispherical rubber protrusion 22 is provided at the lower front end of each foot key 21. In the electronic organ 1 in a state where the caster 5 is not attached to the organ body 4, the protrusion 22 is brought into contact with the floor surface F from above when the foot key 21 is stepped on during performance. This is to prevent F from being damaged.

  Further, a pedestal 31 (foot key receiving portion) for receiving the foot key 21 swinging downward in a state of being placed on the floor surface F is attached to the front surface of the pedal base 14 below the foot keyboard 3. ing. The pedestal 31 has a horizontally long rectangular shape whose plan shape is slightly larger than the portion of the foot keyboard 3 extending forward from the pedal base 14, and a relatively thick rubber mat is pasted on a wooden or metal box. A rubber foot 31a that slightly protrudes is provided at each of the four corners of the bottom surface. The height of the pedestal 31 including these rubber feet 31 a is the same as the height H from the floor surface F of the organ body 4, that is, the organ body 4 is raised from the floor surface F by the four casters 5. It is the same as the height. In addition, L-shaped mounting brackets 32 and 32 are fixed to the left and right corners of the base 31 on the pedal base 14 side by bonding or the like. A hole (not shown) is provided in the mounting piece 32a on the pedal base 14 side of each mounting bracket 32, and the mounting screw 33 is screwed into the front surface of the pedal base 14 through this hole, so that the base 31 is fixed to the pedal base. 14 is attached.

  Moreover, the base 31 is attached so that it may protrude ahead rather than the foot keyboard 3, as shown to FIG. 1 and FIG. 2 (a). That is, the foot keyboard 3 does not exist above the front end portion of the pedestal 31, and the front end portion of the pedestal 31 has a space enough to place the front half of the sole of the player himself. Therefore, the performer can perform while using the front end portion of the pedestal 31 as a footrest by placing the front half of his / her sole on the front end portion of the pedestal 31 before and after the operation of the foot keyboard 3 during performance. The foot keyboard 3 can be operated more easily than when the foot keyboard 3 is operated by moving the foot largely from the state where the foot is attached to the floor surface F.

  FIG. 3 shows a left side view of the foot keyboard 3 in a state in which the front half of the left side base 16 and the front casters 5 are not shown. When the long foot key 21a is stepped on by the performer from the state shown in FIG. 11A, the foot key 21a swings downward as shown in FIG. Abuts on the base 31. This is the same when the short foot key 21b is depressed.

  As described above, in the electronic organ 1 in which the caster 5 is attached to the organ body 4, the organ body 4 is raised from the floor F by the height H, so when playing the electronic organ 1, For example, it is preferable to use a chair whose seat surface is adjustable in height as a chair on which a performer sits. By adjusting the height of the seating surface of the chair in advance before the performance, the performer can play the electronic organ 1 raised by the caster 5 in an appropriate posture.

  As described in detail above, according to the electronic organ 1 of the present embodiment, since the four casters 5 are provided at the bottom, the electronic organ 1 can be easily moved on the floor surface F. Further, the mounting of the caster to the organ body 4 raises the organ body 4 from the floor surface F, and accordingly, the foot keyboard 3 becomes higher than an appropriate height, but below the foot keyboard 3 of the pedal base 14, Since the pedestal 31 is mounted in a state of being placed on the floor surface F, the foot key 21 depressed by the performer swings downward and comes into contact with the pedestal 31. As described above, even when the caster 5 is attached to the organ body 4, it is not necessary to adjust the height of the complicated foot keyboard as in the prior art. The foot keyboard can be appropriately operated without damaging the case constituting the outer shell. Moreover, since the height of the pedestal 31 is the same as the height of the organ body 4 raised by the casters 5, the foot key 21 is moved downward with the same stroke as when operating the foot keyboard of the electronic organ without the casters. And can be brought into contact with the pedestal 31. Thus, the performer can operate the foot keyboard 3 with the same operation feeling as when playing an electronic organ without a caster.

  Further, since the pedestal 31 is fixed to the pedal base 14, the pedestal 31 will not rattle or move on the floor surface F even if the foot key 21 repeatedly abuts during performance. In addition, when the electronic organ 1 is moved along the floor surface F before and after its use, the pedestal 31 can be moved together with the organ body 4. Further, since each caster 5 and pedestal 31 are detachably attached to the organ body 4, in the electronic organ 1 attached to the organ body 4, the electronic organ 1 is always installed at a certain location. When it is no longer necessary to move 1, the foot keyboard 3 can be operated in a normal use state by removing all casters 5 and pedestals 31 from the organ body 4.

  In addition, this invention can be implemented in various aspects, without being limited to the said embodiment described. For example, in the embodiments, only the case where the present invention is applied to an electronic organ has been described, but the present invention is not limited to this, and can be applied to other keyboard instruments having a foot keyboard. Of course, it is possible to configure the keyboard instrument of the present invention by retrofitting the caster 5 and the base 31 to an existing keyboard instrument such as an electronic organ having no casters.

  In the embodiment, the pedestal 31 is screwed to the pedal base 14, but the pedestal 31 is not screwed at all times, and the electronic organ 1 is moved to the performance place and then screwed to the pedal base 14. If the operating time of the foot keyboard 3 is not hindered without screwing the pedestal 31 such as when the electronic organ 1 is used for a relatively short time, the pedestal 31 is not screwed. It may be simply placed on the floor surface F below the foot keyboard 3.

  Further, in the electronic organ 1 with the pedestal 31 attached to the pedal base 14, if the four casters 5 are used to move the electronic organ 1 in a normal posture (at the time of performance), the rubber feet 31 a on the bottom surface of the pedestal 31 are used. Will be dragged on the floor F. Therefore, when the electronic organ 1 is moved, the pedestal 31 is moved with the pedestal 31 removed from the pedal base 14, or the pedestal 31 is configured to be slidable in the vertical direction with respect to the pedal base 14. It is preferable to move in a state where it floats from the floor surface F. Regarding the configuration of the pedestal 31 for realizing the latter movement, for example, by forming a vertically long hole in the attachment piece 32a on the pedal base 14 side of the attachment bracket 32, the pedestal 31 that is slidable in the vertical direction can be easily formed. Can be realized. Even when the pedestal 31 is mounted on the pedal base 14 in a state of being placed on the floor surface F, for example, by tilting the electronic organ 1 backward, the pedestal 31 is lifted from the floor surface F, The electronic organ 1 can be moved without dragging the rubber foot 31a of the pedestal 31 on the floor F by moving the electronic organ 1 on the floor F while using only the left and right casters 5 and 5 on the rear side. It can be moved easily.

  Further, the detailed configuration of the caster 5 and the pedestal 31 shown in the embodiment is merely an example, and can be appropriately changed within the scope of the gist of the present invention. In particular, the number of casters 5 attached to the organ main body 4 may be any number other than four as long as the organ main body 4 can be supported on the floor surface F so as to be appropriately movable. As for the height dimension 31, a dimension other than the above height H is adopted as long as the operation of the foot keyboard 3 does not damage the case of the organ body 4 and can appropriately operate the foot keyboard 3. It is also possible.

It is a perspective view which shows the electronic organ to which the keyboard musical instrument by one Embodiment of this invention is applied. It is a figure which shows the periphery of the foot keyboard of the electronic organ of FIG. 1, (a) is a left view, (b) is a front view. It is the figure which abbreviate | omitted the caster of the front half part and front side of the wife base of Fig.2 (a), (a) shows the state before depressing a foot key, (b) shows the state which depressed the foot key.

Explanation of symbols

1 Electronic organ (keyboard instrument)
2 Hand keyboard 3 Foot keyboard 4 Organ body (instrument body)
5 Caster 11 Performance part 12 Stand 14 Pedal base 21 Foot key 31 Base (foot key receiving part)
32 Mounting bracket H Height of the organ body from the floor F Floor

Claims (5)

A foot keyboard comprising a plurality of foot keys extending forward from the lower end of the instrument body and swingable in the vertical direction and swinging downward when depressed by the performer;
A caster attached to the bottom of the instrument body and supporting the instrument body movably on the floor;
A foot key receiving portion that is provided below the foot keyboard in a state of being placed on the floor surface, and that contacts the foot key that swings downward as the player steps on;
A keyboard instrument characterized by comprising   The keyboard instrument according to claim 1, wherein the foot key receiving portion has the same height as the height from the floor of the instrument body.   The keyboard instrument according to claim 1, wherein the foot key receiving portion is fixed to the instrument body.   The keyboard instrument according to claim 3, wherein the foot key receiving portion and the caster are detachably attached to the instrument body.   The keyboard instrument according to claim 1, wherein the foot key receiving portion is provided so as to protrude forward from the foot keyboard.

Images