JP2007025365A - Pedal unit for electronic keyboard musical instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate a pedal operation even in any posture. <P>SOLUTION: An operation lever 40 comprises a front portion 41, a rear portion 42, a left portion 43, and a right portion 44, and is constituted in a rectangular frame shape in plane view on the whole. Bearing portions 101 and 102 are arranged at both left and right ends of a subframe 30, the rear portion 42 of the operation lever 40 is pivoted on the bearing portions 101 and 102, and the front portion 41 is enabled to freely rotate up and down. When the operation lever 40 is pressed, this is detected by an operation detection switch SW. When the pressing is relaxed, the operation lever 40 returns to a non-depression position by a spring 94 of a spring-incorporated block 90. The width B2 of the operation lever 40 in a key array direction is secured by a two-foot breadth or more. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a pedal device for an electronic keyboard instrument that is placed below a keyboard device and operated with a foot.

2. Description of the Related Art Conventionally, a pedal device attached to an electronic keyboard instrument and used for controlling various effects such as sustain and software has been known. In this type of pedal device, for example, as shown in Patent Documents 1 and 2 below, the operation unit that is operated is usually long in the front-rear direction, but the width in the key arrangement direction is at most 1 It is about the foot width length. When playing a keyboard instrument, it is usually possible to perform a sufficiently appropriate operation with the shape and size of the operation unit as described above, if the chair is properly adjusted in height and is properly seated.
Japanese Utility Model Publication No.59-11181 Japanese Utility Model Publication No. 60-98897

  However, if the player is a beginner or the height of the chair does not match the player, it may not be easy to step on the operation unit of the pedal device.

  Also, in the future, if a keyboard device that differs from the conventional one, such as the height of the keyboard device and the height of the chair is extremely low, the performance posture will not be uniform, It is also possible to operate with a rough posture. Even in such a case, it is difficult to properly step on the operation unit of the conventional pedal device, and when the operation direction is oblique, the pedal device becomes unstable and appropriate operation is not possible. It is expected to become even more difficult.

  Furthermore, even in the case where two keyboard players play a single keyboard device, if the pedal device used is one of the conventional general configuration, it is difficult for any player to operate. It becomes.

  The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide an electronic keyboard instrument pedal device that can facilitate pedal operation even in a rough posture.

  In order to achieve the above object, an electronic keyboard instrument pedal device according to claim 1 of the present invention is an electronic keyboard instrument pedal device placed under the keyboard device and operated by a foot, comprising a base body, A pivot fulcrum (101, 102) fixedly held by the base body and a lever held by the pivot fulcrum so that the player side end can be pivoted up and down by being pressed. A body (40), a return means (94) for returning the pressed lever body to a non-pressed position, and a detection means that is driven in conjunction with the rotation of the lever body and detects a pressing operation of the lever body. (SW), and the length (B2) in the key arrangement direction of the player side end of the lever body is ensured by a length equal to or greater than the length of two legs.

  Preferably, the length (B1) in the key arrangement direction of the base body is longer than the length (B2) in the key arrangement direction of the player side end of the lever body (Claim 2).

  Preferably, the lever body includes the player side end portion (41), a rotation shaft portion (42) opposed to the player side end portion and pivotally supported by the rotation fulcrum portion, and the player side end portion. And the left and right connecting portions (43, 44) for connecting the rotating shaft portion to each other, and is formed in a rectangular or trapezoidal frame shape in plan view. It is driven directly or indirectly by a part other than the player side end (Claim 3).

  In addition, the code | symbol in the said parenthesis is an illustration.

  According to claim 1 of the present invention, pedal operation can be facilitated even in a rough posture.

  According to the second aspect, even when the lever body is pressed from an oblique direction, the pedal device is stable and accurate operation detection can be performed.

  According to the third aspect, the material cost can be saved and the degree of freedom in design can be increased.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1A is an external perspective view of an electronic keyboard instrument pedal device and an electronic keyboard instrument according to an embodiment of the present invention. The electronic keyboard instrument pedal device (hereinafter referred to as “pedal device”) 20 is used in combination with the electronic keyboard instrument 10, and when used, the pedal device 20 is located below the main body of the electronic keyboard instrument 10. Placed. FIG. 1B is an external perspective view of the pedal device 20.

  The pedal device 20 functions as an operator for effect control similarly to a damper pedal attached to a general electronic keyboard instrument. The pedal device 20 wirelessly transmits an operation detection signal from the transmission unit 12, and the operation detection signal is received by the reception unit 11 provided on the lower surface of the main body of the electronic keyboard instrument 10. As the types of effect control, various controls such as damper, software, sostenuto, tremolo, sustain, vibrato and the like can be performed, and the control switching can be performed on the electronic keyboard instrument 10 side.

  The pedal device 20 includes an upper cover 60 and a front cover 70 provided on a base body 21 installed on a floor surface, and an operation lever 40 extending from two left and right recesses 71 and 72 of the front cover 70. . Legs may be protruded from the four corners of the lower surface of the base body 21. Hereinafter, the left-right direction is referred to in the normal placement state of the pedal device 20. Accordingly, in FIG. 1B, the concave portion 71 side is the left side, the concave portion 72 side is the right side, and the free end side (player side) of the operation lever 40 is the front side. Since the operation lever 40 functions as a pedal, it may be hereinafter referred to as a “pedal”.

  FIG. 2A is an external perspective view showing a state in which the upper cover 60 and the front cover 70 are removed from the pedal device 20. FIG. 2B is an external view of the right end portion of the subframe. FIG. 3 is a rear view of the operation lever 40. FIG. 4 is a cross-sectional view taken along the line AA in FIG.

  As shown in FIG. 3, the operation lever 40 includes a front part 41, a rear part 42, a left part 43, and a right part 44, and the whole is configured in a rectangular frame shape in plan view. The operation lever 40 is configured such that a round bar made of metal such as aluminum is bent and welded at the connection portion 50 to form a continuous frame, and the material cost is reduced. Planar cutout portions 47 and 49 are provided on the lower surfaces of the rear portions of the left portion 43 and the right portion 44, and a flat cutout portion 48 is provided on the lower surface of the right half portion of the rear portion 42. Further, in the vicinity of the left and right end portions of the rear portion 42, groove portions 45 and 46 cut out in a substantially vertical direction are formed. The operation lever 40 is not limited to a rectangular shape in plan view, and may be trapezoidal in plan view. In that case, the longer one (long side) of the two parallel sides may be the front part 41 or the rear part 42.

  The width of the operation lever 40 in the key arrangement direction is B2, and the depth is D2. On the other hand, as shown in FIG.1 (b), the width | variety of the key arrangement direction of the base body 21 is B1, and depth is D1. The dimensional relationship between the width and depth is B1> B2 and D1> D2. Here, the width B2 of the operation lever 40 is secured by a length equal to or longer than two legs. That is, the dimension of two horizontal widths of a general size foot is secured, for example, B2 = 218 mm. The depth D2 is about half of the width B2. When the operation lever 40 has a trapezoidal shape in plan view, the width B1 of the base body 21 is set to be larger than its long side, and the conditions relating to the depth are the same as in the case of the rectangular shape in plan view.

  As shown in FIG. 2A, a subframe 30 that is long in the key arrangement direction is disposed on the upper surface of the rear portion of the base body 21. As shown in FIG. 4, the subframe 30 is integrally formed by bending a metal plate, and forms a space between the subframe 30 and the base body 21. The subframe 30 has mounting pieces 36 and 37 at the lower rear portion, and also has an unillustrated mounting piece at the lower front portion, and the base body 21 with screws 55 and unillustrated screws through these mounting pieces. It is fixed to. In addition, battery housing portions 38 and 39 are provided inside the subframe 30, and holes are provided in the base body 21 at positions corresponding to the battery housing portions 38 and 39, below the battery housing portions 38 and 39. The battery lid 53 is detachably attached to the base body 21.

  As shown in FIG. 2A, bearing portions 101 and 102 are disposed at the left and right end portions of the subframe 30. The left bearing portion 101 includes an upper bearing member 103 and a lower bearing member 104, and the right left bearing portion 102 includes an upper bearing member 105 and a lower bearing member 106. The bearing portions 101 and 102 are bilaterally symmetric, but are configured in the same manner. Therefore, the configuration of the left bearing unit 101 will be described.

  FIG. 5 is an exploded perspective view of the bearing unit 101. The lower surface of the upper bearing member 103 and the lower bearing member 104 are formed with a concave groove 107 and a concave groove 110, each having a semicircular cross section, into which the rear portion 42 of the operation lever 40 is fitted. A stopper protrusion 111 for restricting movement of the operation lever 40 in the key arrangement direction is integrally formed at a position corresponding to the rear portion of the groove 110 on the right side of the lower bearing member 104. . The width (thickness) of the stopper projecting piece 111 is set to such an extent that the groove portion 45 of the rear portion 42 of the operation lever 40 can be fit comfortably.

  The rear portion 42 of the operating lever 40 is fitted between the concave groove 107 of the upper bearing member 103 and the concave groove 110 of the lower bearing member 104, and at this time, the groove 45 is engaged with the stopper projection 111 (see FIG. (See also 4). Then, the bearing portion 101 is screwed to the subframe 30 by being fastened to the subframe 30 through the mounting holes 108 and 109 of the upper bearing member 103 and the mounting holes 112 and 113 of the lower bearing member 104. Fixed. The mounting manner of the bearing portion 102 is also the same, and after mounting, the groove portion 46 (see FIG. 3) of the rear portion 42 of the operation lever 40 becomes a stopper protrusion piece (not shown) similar to the stopper protrusion piece 111. Engage.

  In this manner, the rear portion 42 of the operation lever 40 is pivotally supported by the bearing portions 101 and 102, and the front portion 41 is rotatable in the vertical direction. In addition, the movement of the operation lever 40 in the key arrangement direction is restricted by the engagement between the stopper projecting piece 111 and the like and the grooves 45 and 46.

  As shown in FIG. 2A, stopper members 96 (96L, 96R) are attached to the lower surfaces of the rear portions of the left portion 43 and the right portion 44 of the operation lever 40, respectively. The stopper members 96L and 96R are positioned on the left and right outer sides adjacent to the bearing portions 101 and 102, respectively. In addition, holes 33, 33 are formed from the upper part to the front part at positions corresponding to the stopper members 96L, 96R at both left and right ends of the subframe 30. As shown in FIG. 2B, the hole 33 has a wide portion 33a in the front half, and extending pieces 34, 34 are extended inward of the hole 33 behind the wide portion 33a. The structure of the hole 33 is the same on the left and right sides including the extending pieces 34 and 34.

  In addition, spring-loaded blocks 90 and 90 are provided on the base body 21 at positions corresponding to the stopper members 96L and 96R. The configuration of the left and right spring-loaded blocks 90 is the same. Also, the stopper members 96L and 96R have the same configuration, and these parts are shared. About the spring containing block 90 and the stopper member 96, the structure of the one on either side is demonstrated using FIG.

  FIG. 6A is a perspective view of the spring-loaded block 90. FIG. 6B and 6C are schematic views of the vicinity of the spring-loaded block 90 in a side view. FIG. 4B shows the non-pressed state of the operation lever 40, and FIG. 4C shows the pressed end state.

  As shown in FIG. 6A, a through hole 91 is provided in the front portion of the spring-filled block 90, and a coiled spring 94 is housed in the through hole 91 (see FIG. 10C). As shown in FIGS. 4A and 4C, the spring-loaded block 90 is screwed and fixed onto the base body 21 through a mounting hole 92 at the rear part. The upper part of the front half of the spring-loaded block 90 is an inclined surface 93 that is inclined downward as it goes forward.

  On the other hand, as shown in FIGS. 2B and 2C, the stopper member 96 is provided on the lower surface of each rear part of the left part 43 and the right part 44 (see FIGS. 2A and 2B) of the operation lever 40. It is fixed by screwing through a spacer 95. The stopper member 96 is integrally formed with a flange 97 that hangs downward from the front portion and extends further rearward. One flange 97 is provided at each of the left and right ends of the stopper member 96. The collar portion 97 extends through the wide portion 33 a (see FIG. 2B) of the hole 33 to the lower side of the extending piece 34.

  The spring 94 always abuts against the ceiling surface (inner lower surface) 96 a of the stopper member 96, and constantly biases the operation lever 40 upward via the stopper member 96. The flange portion 97 of the stopper member 96 comes into contact with the lower surface of the extending piece 34 behind the hole 33 of the subframe 30, and the non-depressed position of the operation lever 40 is restricted. On the other hand, when the operating lever 40 is pressed, the ceiling surface 96a of the stopper member 96 comes into contact with the inclined surface 93 of the spring-loaded block 90 in parallel, and the inclined surface 93 functions as a stopper body, and the pressing of the operating lever 40 is completed. The position is restricted. In addition, a cushioning member such as felt may be provided on the lower surface of the extended piece 34 so that the flange 97 abuts against the cushioning member. Reduced.

  As shown in FIG. 2A, a hole 31 is formed in the front part slightly to the right of the center of the subframe 30, and the operation of the operation lever 40 is detected on the base body 21 below the hole 31. An operation detection switch SW is provided. Further, the actuator 51 is attached to the rear portion 42 of the operation lever 40 corresponding to the hole 31. The actuator 51 is composed of a thin plate of metal or the like, and a base portion thereof is screwed and fixed to the rear portion 42, and a free end portion which is a front portion extends forward above the hole 31. The actuator 51 has its free end turned up and down in conjunction with turning about the turning center P0 (see FIGS. 6B and 6C) of the rear portion 42 of the operating lever 40.

  FIG. 7 is a partial cross-sectional view of the vicinity of the operation detection switch SW as viewed from the front. In the figure, a non-pressed state of the operation lever 40 is shown. The operation detection switch SW uses a so-called transfer switch. That is, the fixed block 81 is fixed to the subframe 30 with the screw 82, and the contact portion 83 extends to the left from the fixed block 81. In the contact portion 83, a conductive leaf contact 86 swingable up and down extends to the left, and the leaf contact 86 passes between the upper contact 84 and the lower contact 85. A contact 87 is attached to the upper end of the leaf contact 86, and the contact 87 is driven by the actuator 51.

  In the present embodiment, the operation of the operation lever 40 is detected using only the lower contact 85 without using the upper contact 84 in the operation detection switch SW. That is, when the operation lever 40 is pressed and rotated downward, the leaf contact 86 is pressed via the actuator 51 and the contact 87, and the leaf contact 86 contacts the lower contact 85 of the contact portion 83. An on operation of the operation lever 40 is detected. On the other hand, when the pressing of the operation lever 40 is released, the leaf contact 86 is separated from the lower contact 85, and an off operation of the operation lever 40 is detected.

  As long as the on / off operation of the operation lever 40 can be detected, switches or sensors having other configurations may be used. Further, a switching circuit may be configured using the leaf contact 86 and the upper contact 84. In that case, since the detection function works at a position where the operation lever 40 is not fully depressed, it is effective in detecting a pedal operation in a form suitable for it. As signal processing in that case, it is only necessary to invert the signal with respect to switching by the leaf contact 86 and the lower contact 85 described above.

  8A and 8B are a front view and a bottom view of the upper cover 60, and FIGS. 8C and 8D are a front view and a bottom view of the front cover 70. As shown in FIGS. 8A, 8 </ b> B, and 4, attachment portions 62 and 63 are provided in the rear portion of the upper cover 60. In the pedal device 20 after assembly, the attachment portions 62 and 63 are It is fixed to the upper part of the subframe 30 with screws 54. A plurality of (for example, four) protrusions 64 are integrally formed on the upper front portion of the upper cover 60, and a gap 65 is generated between each of the protrusions 64 and the front edge portion 61. In addition, an LED holding hole 66 and a window 67 are formed in the uppermost front portion of the upper cover 60.

  As shown in FIGS. 8A, 8 </ b> B, and 4, the front cover 70 has the concave portions 71 and 72 (see also FIG. 1B) formed in the thin plate portion 75, and the left and right ends of the thin plate portion 75. From the lower part of the part, attachment pieces 73 and 74 are integrally formed extending rearward. In the pedal device 20 after assembly, the upper edge of the front cover 70 is sandwiched by the gap 65 of the upper cover 60, and the attachment pieces 73 and 74 are screwed and fixed to the base body 21.

  As shown in FIG. 2, the LED 52 is fixed to the subframe 30 and is fitted and held in the LED holding hole 66 of the upper cover 60 as shown in FIG. 4. A transparent or translucent transparent plate 68 made of acrylic or the like is fitted into the window 67 of the upper cover 60, and is accommodated inside the window 67, the transparent plate 68, the LED 52, and the subframe 30. The transmitter 12 (see FIG. 1B) is configured by a transmitter (not shown).

  The LED 52 emits infrared light and is electrically connected to the transmitter (not shown). The transmitter controls the light emission of the LED 52 in response to detection of ON of the operation detection switch SW. When the LED 52 emits light with a predetermined blinking pattern, the operation detection signal is wirelessly transmitted to the receiving unit 11 of the electronic keyboard instrument 10 (see FIG. 1A). The configuration in which the LED 52 is used for signal transmission is a known configuration, for example, using the same principle as a television remote controller or the like. Note that the operation detection signal may be transmitted by another method, and may be configured to be transmitted by wire as far as the function to transmit is limited.

  The pedal device 20 is assembled as follows. First, the actuator 51 and the stopper member 96 are attached to the operation lever 40, and the bearing portions 101 and 102 are fixed to the subframe 30 so that the operation lever 40 is rotatable (see FIG. 2). Then, the upper edge of the front cover 70 is sandwiched between the gaps 65 of the upper cover 60 so as to be temporarily attached. In this state, the mounting portions 62 and 63 of the upper cover 60 are attached to the upper portion of the subframe 30 with screws 54 from the back side. Fix (see FIGS. 4 and 8).

  On the other hand, a spring-loaded block 90 is fixed to the base body 21. Thereafter, the attachment pieces 73 and 74 of the front cover 70 assembled in the temporarily attached state to the subframe 30 are screwed and fixed to the base body 21 from the back side. At the same time, the subframe 30 is screwed to the base body 21 from below. Thereby, the pedal apparatus 20 is completed.

  In such a configuration, the pedal device 20 is placed on the floor so that the transmission unit 12 is positioned below the reception unit 11 of the electronic keyboard instrument 10, and the player can play the keyboard lever together with the operation lever 40 of the pedal device 20. A pressing operation is performed mainly by stepping on the front part 41 with a foot. As a result of the pressing operation, the operation detection signal is transmitted to the electronic keyboard instrument 10 as described above, and the effect control set at that time is applied to the musical sound to be generated. When the pressing is loosened, the operating lever 40 is returned to the non-pressing position by the biasing force of the spring 94 of the spring-loaded block 90.

  According to the present embodiment, since the width B2 of the front portion 41 of the operation lever 40 is secured by the length of two legs or more, the player is a beginner or the height of the chair does not match the player. Even if an appropriate posture is not taken, the operation lever 40 can be easily depressed. In particular, even when the electronic keyboard instrument 10 has a lower height than a general electronic keyboard instrument and the chair is also low, the operation lever 40 is long even when the electronic keyboard instrument 10 is operated with its legs extended. It's easy to do. Therefore, even when the operation is performed in a rough posture, it is easy to appropriately press the operation lever 40. Also, even when one electronic keyboard instrument 10 is played by two players using a split or the like, one pedal device 20 can be easily operated for any player, and two-person parallel operation is also possible. Is possible.

  Further, the width B1 and the depth D1 of the base body 21 are both longer than the width B2 and the depth D2 of the operation lever 40, and the operation lever 40 is disposed inside the base body 21 in plan view (FIG. 2A )reference). Depending on the playing posture, the operation lever 40 may be pushed slightly diagonally backward or diagonally left and right rather than straight downward. Even in such a rough way, the pedal device 20 is configured as described above. Can be stabilized and an appropriate pressing operation or operation detection can be performed.

  In addition, during the performance operation, the movement of the operation lever 40 in the key arrangement direction is restricted by the engagement of the stopper projection 111 and the like with the grooves 45 and 46 (see FIG. 5). Therefore, even if the left and right ends of the operation lever 40 are stepped on, or even if the step is stepped diagonally from the upper front to the lower rear, the control lever 40 rotates stably without causing lateral vibration, and switching is performed reliably. To do. Therefore, it is less likely that the operation lever 40 is stepped off, and the operability can be improved.

  Further, the rotation holding mechanism (bearing portions 101, 102, etc.) of the operation lever 40, the vertical position regulating mechanism, and the original position returning mechanism (stopper member 96, spring-loaded block 90) are connected to the left and right ends of the base body 21 to the subframe 30. Since it is centrally arranged in the section (see FIG. 2A), the whole can be made compact. In addition, since the leaf contact 86 (see FIG. 7) in the operation detection switch SW extends in the key arrangement direction (left side), it is possible to reduce the waste of space in the front-rear direction.

  Further, since the front cover 70 is permanently fixed to the base body 21 in a state of being temporarily attached to the upper cover 60, the assembling work of the front cover 70 and the upper cover 60 is easy. Further, the presence of the front cover 70 avoids the inconvenience of the player's toes entering the upper cover 60 and being caught during the performance. In addition, the main mechanism unit group such as the rotation holding mechanism, the vertical position restriction mechanism, the original position return mechanism, and the operation detection mechanism (operation detection switch SW, actuator 51) of the operation lever 40 is included in the front cover 70. And since it is covered with the upper cover 60, it can suppress that dust etc. adhere to those mechanism part groups, and can maintain various functions appropriately.

  Further, since the actuator 51 (see FIG. 2A) is fixed to the rear portion 42 of the operation lever 40, a large space where no parts are present is formed below the front portion 41 of the operation lever 40. In addition to improving operability, the degree of design freedom is increased and the appearance is also improved. From this viewpoint, the actuator 51 is not limited to being fixed to the rear portion 42 of the operation lever 40, and may be fixed to the rear portion of the left portion 43 or the rear portion of the right portion 44. Although the contactor 87 is indirectly driven by the operation lever 40 via the actuator 51, the contactor 87 is configured to be directly driven by the rear part 42, the rear part of the left part 43, or the rear part of the right part 44. May be.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view (FIG. (A)) of an electronic keyboard instrument pedal device and an electronic keyboard instrument according to an embodiment of the present invention, and an external perspective view of the pedal device (FIG. (B)). It is the external appearance perspective view (figure (a)) which shows the state which removed the upper cover and the front cover from the pedal apparatus, and the external view (figure (b)) of the right end part of a sub-frame. It is a reverse view of an operation lever. It is sectional drawing which follows the AA line of FIG.1 (b). It is a disassembled perspective view of a bearing part. They are a perspective view (a figure (a)) of a spring containing block, and a mimetic diagram (a figure (b) and (c)) by a side view near a spring containing block. It is a fragmentary sectional view by the front view of the operation detection switch vicinity. They are a front view (figure (a)) of a top cover, a bottom view (figure (b)), a front view (figure (c)), and a bottom view (figure (d)) of a front cover.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Electronic keyboard instrument (keyboard apparatus), 20 Pedal apparatus (electronic keyboard instrument pedal apparatus), 21 Base body, 40 Operation lever (lever body), 41 Front part (player side edge part), 42 Rear part (rotating shaft part) ), 43 left part (left connection part), 44 right part (right connection part), 94 spring (return means), 101, 102 bearing part (rotation fulcrum part), SW operation detection switch (detection means), B1, B2 width

Claims (3)

A pedal device for an electronic keyboard instrument that is placed under the keyboard device and operated with a foot,
A base body,
A rotation fulcrum fixedly held by the base body;
A lever body held by the rotation fulcrum so that the player-side end can be rotated in the vertical direction by being pressed;
Returning means for returning the pressed lever body to the non-pressed position;
Detecting means that is driven in conjunction with the rotation of the lever body and detects a pressing operation of the lever body;
The pedal device for an electronic keyboard instrument, wherein a length of the lever body in the player side end in the key arrangement direction is ensured by a length equal to or longer than two legs.   2. The pedal device for an electronic keyboard instrument according to claim 1, wherein a length of the base body in the key arrangement direction is longer than a length in the key arrangement direction of the player side end of the lever body.   The lever body connects the player-side end, a turning shaft that faces the player-side end and is pivotally supported by the turning fulcrum, and the player-side end and the turning shaft. The detection means is driven directly or indirectly by a portion other than the player side end portion of the lever body portion. The electronic keyboard instrument pedal apparatus according to claim 1 or 2, wherein the electronic keyboard instrument pedal apparatus is provided.

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