JP2005070565A - Electronic musical instrument pedal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pedal device of an electronic musical instrument that enables a player to smoothly step on a pedal, at a natural posture whatever physique the player may have. <P>SOLUTION: The pedal device of the electronic musical instrument, which is provided below a musical instrument body 2 and operated by the player to impart pedal effect to a musical performance sound, is equipped with a pedal base 11b which is provided movably below the musical instrument body 2, the pedal 12 of which is provided to the pedal base 11b, projects toward the player, and is stepped in by the player, and a fixing mechanism 21 which fixes the pedal base 11b to the musical instrument body 2 at a plurality of specified mutually different positions. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a pedal device for an electronic musical instrument that is operated by a player to give a pedal effect to a performance sound.

  Conventionally, in general, in the case of an electronic piano, for example, in the case of an electronic piano, the pedal of an electronic musical instrument is provided so as to protrude forward at a fixed position near the floor surface below the center of the piano body. During performance, the performer sits in front of the electronic piano and depresses the pedal, thereby giving a pedal effect to the performance sound.

  On the other hand, as a conventional piano pedal device, for example, one disclosed in Patent Document 1 is known. This pedal device is provided inside the upright piano, and is surrounded by a bottom plate near the floor and a front base. Further, the pedal device includes a shaft erected on the bottom plate, a pedal that is swingably supported by the shaft, and the like. The pedal has a pedal rod and a pedal depression portion, and the pedal rod has a U-shaped cross section and is open downward, and extends in the front-rear direction. Moreover, it is supported by the said axis | shaft in the front-end part, and the pin protrudes laterally from the both right and left side surfaces, respectively. The pedal stepping portion also has a U-shaped cross section and extends in the front-rear direction. Long holes extending in the front-rear direction are formed in the left and right sides, respectively.

  Such a pedal depression part is attached to the pedal rod so as to be covered from above, and a pin of the pedal rod is engaged with a long hole of the pedal depression portion. Thereby, the pedal depression part is slidable in the front-back direction with respect to the pedal rod. At predetermined positions before and after the pedal depressing part, there are respectively formed recesses that engage with leaf spring-like stoppers attached to the front base, and when the stoppers selectively engage with the recesses, It is fixed at one of the performance position slid to the rear and the storage position slid rearward most. The pedal stepping portion protrudes forward from a pedal window formed on the front base at the performance position and can be stepped on by the performer, while being stored in the piano body at the storage position.

  The conventional general pedal described above has the following problems. That is, some electronic musical instruments have a small depth, such as a keyboard-type electronic piano, and a player sat in a natural posture toward the electronic musical instrument in order to play such an electronic musical instrument. Sometimes, if the performer's physique is large, his knees may go deep into the space below the instrument body. In such a case, the pedal is provided so as to protrude forward, so in order for the performer to step on the pedal, it must be in a cramped posture with an unnaturally bent knee, Since the stepping operation cannot be performed smoothly, there is a risk of hindering performance. Conversely, when an infant or the like plays, there is a risk that the foot will not reach the pedal. In order to avoid such problems, it is also known to use a portable pedal that is separate from the instrument body and placed on the floor. However, in this case, although it is possible to move the pedal according to the position of the foot, such a portable pedal is not fixed to the floor surface. The pedal may move, and there is a possibility that the pedal cannot be operated stably.

  Further, the pedal device of Patent Document 1 described above merely switches the pedal stepping portion between the performance position and the storage position by sliding the pedal stepping portion back and forth, and when the pedal stepping portion is slid to the storage position, Is stored in the piano and cannot be operated. For this reason, in order to match the physique of the performer, the position of the pedal cannot be adjusted for the purpose of improving the operability of the pedal.

  The present invention has been made to solve the above-described problems, and provides a pedal device for an electronic musical instrument that can smoothly operate the pedal in a natural posture regardless of the physique of the performer. The purpose is that.

Japanese Utility Model Publication No. 60-13594 (1st page, 9, 10)

  In order to achieve this object, the invention according to claim 1 of the present invention is a pedal device for an electronic musical instrument that is provided below the instrument body and is operated by a player to give a pedal effect to the performance sound. A pedal base that is movably provided below the instrument body, a pedal base that is provided on the pedal base and protrudes toward the performer side, and a pedal base that is stepped on by the performer, and a plurality of different predetermined positions. And a fixing mechanism for fixing to the musical instrument main body.

  According to this pedal device, when the pedal base below the instrument body is moved, the pedal provided on the pedal base moves together with the pedal base while maintaining the state of protruding to the player side. Further, the moved pedal base is fixed to the instrument body at any one of a plurality of different positions by a fixing mechanism. Thereby, the performer can adjust the pedal to the most suitable position for the operation of the pedal according to his / her physique by moving the pedal device to any of a plurality of predetermined positions. Further, since the pedal is fixed to the instrument body via the pedal base, it is possible to ensure stable operation of the pedal, unlike a conventional portable pedal.

  The invention according to claim 2 is the pedal apparatus for an electronic musical instrument according to claim 1, wherein the pedal base is configured to be movable in the front-rear direction of the electronic musical instrument.

  According to this pedal device, the pedal base and the pedal provided thereon move in the front-rear direction. Thus, for example, when the depth of the electronic musical instrument is small, such as a keyboard-type electronic piano, the position of the foot when the performer sits in a natural posture in front of the electronic musical instrument is deviated from the position of the pedal. Even so, the pedal can be moved and fixed together with the pedal base in the front-rear direction so as to match the position of the foot. Therefore, the performer can reliably move the pedal to a position suitable for the operation regardless of the type of the electronic musical instrument.

  According to a third aspect of the present invention, there is provided a pedal device for an electronic musical instrument that is provided below the instrument body and is operated by a performer to impart a pedal effect to the performance sound. A pedal base extending in the direction, and a pedal provided at a position shifted from the center of the pedal base in the left-right direction, extending obliquely toward the performer and being stepped on by the performer.

  According to this pedal device, the pedal is provided at a position shifted in the left-right direction from the center portion of the pedal base extending in the left-right direction below the instrument body, and extends obliquely toward the performer. That is, the pedal is provided diagonally forward rather than in front of the performer, and therefore the distance between the performer and the pedal is greater than when the pedal is provided in front of the performer. The performer gives a pedal effect to the performance sound by depressing the pedal in front of the diagonal. As a result, even for an electronic musical instrument with a small depth, such as a keyboard-type electronic piano, a sufficient distance between the performer and the pedal can be secured, and the pedal can be operated without any trouble.

  According to a fourth aspect of the present invention, in the electronic musical instrument pedal device according to the third aspect, the pedal base is configured such that the pedal can be attached to a plurality of different positions in the left-right direction.

  According to this pedal device, the performer can set the position of the pedal to any of a plurality of predetermined positions in the left-right direction of the pedal base. Thereby, the performer can select the position where the pedal is most easily operated according to his / her physique.

1 is a perspective view showing an electronic piano including a pedal device according to a first embodiment of the present invention. It is an exploded view which shows the structure of the pedal apparatus of FIG. It is a top view which shows (a) frontmost position and (b) innermost position of the pedal apparatus of FIG. 1, respectively. It is a perspective view which shows the electronic piano containing the pedal apparatus by 2nd Embodiment of this invention. It is an exploded view which shows the structure of the pedal apparatus of FIG. It is a top view which shows the modification of the pedal apparatus of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an electronic piano 1 (electronic musical instrument) including a pedal device 10 according to a first embodiment of the present invention. The electronic piano 1 includes a piano body 2 (musical instrument body), left and right legs 3 and 3 that support the piano body 2 on a floor surface F at a predetermined height, a pedal device 10 provided between the legs 3 and 3, and the like. It has. Further, a back plate 7 is provided on the back side of the portion surrounded by the piano body 2, the legs 3 and 3, and the pedal device 10 (on the side opposite to the performer). Is formed with a space S opened forward. When playing the electronic piano 1, the performer sits on the chair (not shown) in front of the electronic piano 1 toward the electronic piano 1, and the performer's legs enter the space S.

  The piano body 2 includes a keyboard 4, left and right arms 5, 5, and an operation panel 6 for setting the tone color of the performance sound. Also, in the piano body 2, a sound generation control device composed of a large number of electronic parts for controlling the sound generation of the electronic piano 1 according to the depressed state of the keyboard 4, a speaker (both not shown), and the like are attached. By pressing the key 4a of the keyboard 4, a performance sound is produced from the speaker.

  The pedal device 10 includes a pedal base 11 and three pedals 12 provided on the pedal base 11. The pedal base 11 has a rectangular cross section and extends between the legs 3 and 3 with a slight gap from the floor surface F. The pedal base 11 is divided into three parts, a base left part 11a, a base center part 11b, and a base right part 11c arranged in the left-right direction. Each pedal 12 is provided in the base center part 11b of these.

  The pedals 12 are juxtaposed in the left-right direction, and each pedal 12 is attached to the inside of the base center part 11b at the rear part, and the front part protrudes from the base center part 11b to the player side. In addition, the depression state of each pedal 12 is detected by a pedal sensor (not shown), and the detection signal is output to the sound generation control device of the piano body 2 so that the pedal 12 is depressed during performance. Thus, a pedal effect is added to the performance sound. Further, the base left portion 11a and the base right portion 11c of the pedal device 10 are fixed to the left and right legs 3 and 3, respectively, while the base central portion 11b is moved by the moving mechanism 20 to the base left portion 11a and the base. It is movably provided with respect to the right part 11c. Hereinafter, the moving mechanism 20 will be described.

  As shown in FIG. 2, two pins 13 and 13 are provided on the left and right side surfaces of the base center portion 11b, respectively. The pins 13 and 13 are arranged at a predetermined interval in the front-rear direction and project outward. Moreover, the groove | channel 14 is formed in each inner surface of the base left part 11a and the base right part 11c, and the left and right pins 13 and 13 are engaging with these grooves 14, respectively. The groove 14 extends in the front-rear direction, and its length is larger than the length between the pins 13 and 13 by a predetermined length, and its depth is slightly larger than the height of the pin 13. . The bottom surface of the groove 14 is a corrugated portion 15 formed so that a plurality of concave portions 15a are arranged in the front-rear direction over the length direction thereof.

  With the above configuration, the base center portion 11b is movable in the front-rear direction within the range of the predetermined length with the pins 13 and 13 engaged with the grooves 14. Each pin 13 is accommodated in one of the plurality of concave portions 15a of the corrugated portion 15 of the groove 14, whereby the base center portion 11b is equal to the interval between the concave portions 15a of the corrugated portion 15. It can move in the front-rear direction at a pitch. The four pins 13 and the two grooves 14 and 14 as described above constitute a moving mechanism 20 of the base center portion 11b.

  A screw receiver (not shown) is formed at the center of the bottom surface of the base central portion 11b, and the holder 16 is screwed into the screw receiver from below. In the present embodiment, the fixing mechanism 21 is configured by these screw receivers and the holder 16. The holder 16 is made of a material having high strength, for example, ABS, and has a pressure contact portion 16a and a screw portion 16b. The press contact portion 16a is formed in a disc shape, and the screw portion 16b extends upward from the center of the press contact portion 16a, and is attached to the screw receiver of the base center portion 11b so as to be movable forward and backward. With such a fixing mechanism 21, the base center portion 11 b is fixed to the piano body 2 via the base left portion 11 a, the base right portion 11 c, and the left and right legs 3 and 3 at any of a plurality of positions. The

  Next, a method for adjusting the position of the pedal 12 by the moving mechanism 20 will be described. When fixing the base center part 11b, first, the press contact part 16a is held, and the holder 16 is rotated in a direction in which the press contact part 16a is separated from the base center part 11b. As a result, the holder 16 moves downward, and the bottom surface of the pressure contact portion 16a comes into contact with the floor surface F. When the holder 16 is further rotated in the same direction, the base center portion 11b is pushed up by the reaction force from the floor surface F, the pin 13 is pressed against the upper surface of the groove 14, and the pressure contact portion 16a is pressed against the floor surface F. As a result, the base center portion 11b is fixed to the piano body 2.

  On the other hand, when the position of the pedal 12 is moved in the front-rear direction from this fixed state, when the holder 16 is rotated in the direction in which the press contact part 16a approaches the base center part 11b, each pin 13 is corrugated 15 The holder 16 is moved upward and the press contact portion 16a is separated from the floor surface F. As a result, the fixed state of the base center portion 11b is released, and the base center portion 11b becomes movable along with the three pedals 12 in the front-rear direction. When the performer sits down toward the electronic piano 1, the base center portion 11 b is moved in the front-rear direction to a desired position where each pedal 12 can be operated in a natural posture without bending the knee unnaturally. And set the position. At this time, the performer determines the position of the base center portion 11b and the pedal 12 attached thereto as the frontmost position where the front pin 13 is accommodated in the frontmost recess 15a of the groove 14 (FIG. 3A). The pitch is set at a pitch equal to the interval between the concave portions 15a of the corrugated portion 15 between the innermost pin 13 and the innermost position (FIG. 5B) in which the rear pin 13 is accommodated in the rearmost concave portion 15a. Can do. And after moving the pedal 12 to a desired position, as mentioned above, the base center part 11b is fixed with the holder 16, and the position adjustment is completed.

  As described above, according to the present embodiment, when the base center portion 11b of the pedal base 11 of the electronic piano 1 is moved by the moving mechanism 20, the pedals 12 provided on the base part 11b protrude to the player side. While maintaining the above, the base part 11b moves in the front-rear direction. Further, the moved base center portion 11b is fixed to the piano main body 2 at any one of predetermined positions different from each other by the fixing mechanism 21. Accordingly, the performer moves the base center portion 11b to any one of a plurality of predetermined positions, so that the position of each pedal 12 is adjusted to the physique and is most suitable for the operation of each pedal 12. Can be adjusted. In particular, when the depth of the electronic piano 1 is small, even if the position of the foot when the performer sits in a natural posture in front of the electronic piano 1 is deviated from the position of each pedal 12, each pedal 12 can be reliably moved to a position suitable for the operation. Further, since each pedal 12 is fixed to the piano body 2 via the base center portion 11b of the pedal base 11, a stable operation of each pedal 12 can be ensured unlike a conventional portable pedal.

  FIG. 4 shows an electronic piano 30 (electronic musical instrument) including the pedal device 40 according to the second embodiment of the present invention. In addition, since the electronic piano 30 of this embodiment has the fundamentally same structure as the electronic piano 1 of 1st Embodiment, in FIG. 4, the same code | symbol is attached | subjected about the same component.

  The pedal device 40 includes a pedal base 41, a pedal box 42, a single pedal 43 provided on the pedal box 42, and the like. The pedal base 41 has a rectangular cross section and extends between the legs 3 and 3 with a slight gap from the floor surface F. Further, a plurality of (for example, four) box mounting recesses 41a for mounting the pedal box 42 are formed at the front portion. These box mounting recesses 41a are arranged side by side at a predetermined distance from the center of the pedal base 41 in the left-right direction. The pedal box 42 is attached to one of these box mounting recesses 41a (the rightmost one in FIG. 4), and the other box mounting recesses 41a that are not mounted are hidden in order to hide the pedal box 42. A cover 44 is attached.

  As shown in FIG. 5, the pedal box 42 is box-shaped, and the pedal 43 is attached to the inside of the pedal box 42 at the rear part, and the front part projects from the pedal box 42. By depressing the pedal 43 during performance, for example, a damper pedal effect is given to the performance sound. Each box mounting recess 41a is notched in a plane triangle shape so as to open forward and downward leaving the upper end portion, and has a predetermined size that allows the pedal box 42 to be mounted without a gap. Yes. The pedal box 42 is mounted such that two adjacent side surfaces thereof are in contact with the wall surface of the box mounting recess 41a and tilted obliquely with respect to the pedal base 41, whereby the pedal 43 is attached to the player. It is in a state of extending obliquely toward.

  Further, a screw receiver (not shown) is provided at the center of the bottom surface of the pedal box 42. The holder 45 is attached to the screw receiver by being screwed from below. Since these are configured similarly to the screw receiver and holder 16 of the first embodiment described above, description thereof will be omitted.

  Next, a procedure for mounting the pedal 43 and changing the mounting position will be described. First, when attaching the pedal 43, the pedal box 42 is fitted in the box mounting recess 41a, and the holder 45 has a pressure contact portion 45a. The holder 45 is separated from the pedal box 42 in the direction in which the pressure contact portion 45a is separated from the pedal box 42. Rotate to As a result, the holder 45 moves downward, and the bottom surface of the pressure contact portion 45a comes into contact with the floor surface F. When the holder 45 is further rotated in the same direction, the upper surface of the pedal box 42 presses the pedal base 42, and the press contact portion 16a is pressed against the floor surface F. As a result, the pedal box 42 is connected to the pedal base 41 and the left and right sides. It will be in the state fixed with respect to the piano main body 2 via the legs 3 and 3. FIG.

  On the other hand, when changing the position of the pedal 43 from this fixed state, if the pressure contact portion 45a of the holder 45 is rotated in a direction approaching the pedal box 42, the pedal box 42 is pressed against the pedal base 41 and the pressure contact portion 16a. When the pressure contact is released, the fixed state of the pedal box 42 is released. As a result, the pedal box 42 becomes removable from the pedal base 41. The player can operate the pedal 43 in a natural posture without bending his knees unnaturally when sitting toward the electronic piano 1 from the four mounting recesses 41a arranged side by side. The pedal box 42 is attached to the selected mounting recess 41a in a state where the pedal 43 protrudes toward the player side. Then, as described above, by fixing the pedal box 42 with the holder 45, the position change of the pedal 43 is completed.

  As described above, according to the second embodiment, the pedal 43 is provided at a position shifted in the left-right direction from the central portion of the pedal base 41 extending in the left-right direction below the electronic piano 30 and is directed toward the performer. Projecting diagonally. That is, the pedal 43 is provided diagonally forward rather than in front of the performer, and therefore the distance between the performer and the pedal 43 is greater than when the pedal 43 is provided in front of the performer. ing. Therefore, even when the depth of the electronic piano 30 is small, a sufficient distance between the performer and the pedal 43 can be secured, and the operation of the pedal 43 can be performed without hindrance.

  Further, the performer can set the position of the pedal 43 to any one of four predetermined positions in the left-right direction of the pedal base 41. Thereby, the performer can select the position where the pedal 43 is most easily operated in accordance with his / her physique and dominant foot.

  FIG. 6 shows a pedal device 50 according to a modification of the above-described second embodiment. In this pedal device 50, the front surface of the pedal base 51 is a gently curved surface convex toward the back side, and a rail 51a is provided on the bottom surface so as to follow the curved surface shape of the front surface. The pedal box 42 having the pedal 43 and the fixing mechanism 21 is attached to the rail 51a so as to be movable in the left-right direction along the rail 51a so that the pedal 43 extends toward the performer.

  According to such a configuration, the performer easily moves the pedal box 42 along the rail 51 a and fixes the pedal 43 to an arbitrary position along the rail 51 a by fixing the pedal box 42 with the fixing mechanism 21. Can be set. Further, the farther the set position of the pedal 43 is from the center to the left and right, the greater the distance from the performer. Therefore, the position of the pedal 43 is finely adjusted to the position that is most easily operated according to the physique and dominant foot of the performer. Can be adjusted.

  In addition, this invention can be implemented in various aspects, without being limited to the said embodiment described. For example, in each embodiment, the positions of the pedals 12 and 43 are adjusted by moving the pedals 12 and 43 in the front-rear direction and the left-right direction, respectively. However, the present invention is not limited thereto. In addition to the second embodiment, it may be provided further upward. Thereby, the position of the pedal can be adjusted in the vertical direction, and can be set to an optimum position according to the physique of more performers. Moreover, although only one pedal 43 is attached to the pedal box 42 of the second embodiment and its modification, the present invention is not limited to this, and a plurality of pedals may be attached.

  In the above-described embodiment, the pedal device of the present invention has been described as an example applied to an electronic piano. However, the present invention is not limited to this, and can be applied to other electronic musical instruments having a pedal such as an electronic organ. it can. In addition, it is possible to appropriately change the detailed configuration within the scope of the gist of the present invention.

Explanation of symbols

1 Electronic piano (electronic musical instrument)
2 Piano body (instrument body)
DESCRIPTION OF SYMBOLS 10 Pedal apparatus 11 Pedal base 12 Pedal 21 Fixing mechanism 30 Electronic piano (electronic musical instrument)
40 Pedal device 41 Pedal base 43 Pedal 50 Pedal device 51 Pedal base

Claims (4)

A pedal device for an electronic musical instrument that is provided below the instrument body and is operated by a performer to give a pedal effect to the performance sound,
A pedal base movably provided below the instrument body;
A pedal that is provided on the pedal base and protrudes toward the performer, and is stepped on by the performer;
A fixing mechanism for fixing the pedal base to the instrument body at each of a plurality of different predetermined positions;
A pedal device for an electronic musical instrument, comprising:   The pedal device for an electronic musical instrument according to claim 1, wherein the pedal base is configured to be movable in the front-rear direction of the electronic musical instrument. A pedal device for an electronic musical instrument that is provided below the instrument body and is operated by a performer to give a pedal effect to the performance sound,
A pedal base provided below the instrument body and extending in the left-right direction;
A pedal provided at a position shifted in the left-right direction from the center of the pedal base, extending obliquely toward the performer, and a pedal depressed by the performer;
A pedal device for an electronic musical instrument, comprising: The pedal device for an electronic musical instrument according to claim 3, wherein the pedal base is configured so that the pedal can be attached to a plurality of different positions in the left-right direction.

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