JPH0128555Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an auxiliary pedal device for piano performance, which is used when young children whose feet cannot fully reach the piano pedals when sitting on a piano chair play the piano. It is something.

Prior Art The inventor of the present invention previously proposed
−158190 Publication), Utility Application No. 171465 (1983)
78093) proposed an auxiliary pedal device for piano performance for young children. The idea is that a footrest plate with auxiliary pedals is supported above the underframe so that its height can be adjusted freely, and a hollow rod that passes through the footrest plate at right angles and is supported so as to be vertically movable is inserted downward. A piano petal insertion part with a U-shaped cross section is fixed to the lower end of the insertion rod, which is inserted from the top and fixed at an arbitrary height.The piano petal is inserted into the insertion part, and the auxiliary pedal is inserted with the head of the hollow rod. If the piano is supported horizontally and you want to have a young child play it, place the underframe on the floor between the piano and the chair, and then tighten the bolts that secure the insertion rod to the hollow rod. Align the opening of the inserted part with the height of the piano petal, finely adjust the position of the underframe back and forth and left and right so that the piano petal fits into the inserted part, and then tighten the bolts to make the insertion rod hollow. It is fixed to a pole.

Problems that the invention aims to solve In the above-mentioned invention, the part to be inserted is hidden within the underframe, making it difficult to see and the space around it being narrow, making installation cumbersome and time-consuming. Ta. In addition, while the upper surface of the tip of the piano petal is formed into a convex curved surface, the hollow rod and insertion rod are perpendicular to the floor surface, so when the auxiliary pedal is stepped on, the force is smoothly transmitted to the piano petal. The disadvantage is that it is not carried out.

Means for Solving the Problems The present invention uses a frame with a small projected area that can be placed on the narrow floor between the chair and the piano petal, and the footrest plate is also formed with a correspondingly small area. ,
The footrest is raised up to a position directly above the piano pedal and extended on an incline, and an auxiliary pedal is installed on the extended part of the inclination. The insertion rod is provided so as to be oriented obliquely from the auxiliary pedal toward the piano pedal.

Function: The piano petal insertion part fixed to the lower end of the insertion rod protrudes from the underframe and is easy to see and reach, making positioning, insertion, installation, and removal much easier than before. Also,
The hollow rod and insertion rod are interposed between the auxiliary pedal and the piano petal in an inclined state, which not only makes the installation process easier, but also allows the movement of the auxiliary pedal to be transmitted smoothly and effortlessly to the piano petal. .

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 is large enough to be placed on the floor between the chair 2 on which the infant performer sits and the piano petal 3.
A rectangular underframe 4 is a footrest plate located above the underframe 1 and supported by the underframe 1 so as to be adjustable in height. The leg rods 5 and 6 intersect in the shape of an
The upper ends are pivotally connected to the beams 8, 8 fixed to the lower surface of the footrest plate 4, respectively, and the lower ends are fixed to the left and right inner surfaces of the underframe 1. It is fixed to the fitted and supported sliding rod 11, the lower end of each other leg rod 6, 6 is pivotally connected to the band fittings 9, 9, and the upper end is slidable left and right into the horizontally elongated hole 12 of the beam 8, 8. It is pivotally connected to a freely supported opening/closing rod 13.
A screw rod 14 that extends in the left-right direction on the lower surface of the footrest plate 4 and is rotatably supported without being able to move left or right is connected to the opening/closing rod 13.
It is screwed into a central nut portion 15, and when the screw rod 14 is turned, the footrest plate 4 is raised and lowered. The footrest 4 is extended toward the piano at a slope (approximately 10° slope) to a position directly above the piano petal.
An auxiliary pedal 18 is pivotally attached to a protrusion 17 on the upper surface of the inclined extension 16, and the auxiliary pedal 18 is located farther away from the piano than the piano petal 3, that is, the auxiliary pedal 18 is not located directly above the piano pedal 3, but closer to the player. They are starting to be positioned differently. A hollow rod support device for supporting the hollow rod 19 at right angles to the inclined extension 16 has a bearing collar 20 at the bottom 2.
The inner diameter of the bottomed cylindrical body 22 is made up of a bottomed cylindrical body 22 that is fitted into the cylindrical body 1 and a lid body 24 that is fitted with a bearing collar 23 in the center. The bottomed cylinder body 22 is positioned below the inclined extension part 16 at the position of the hole 25 having approximately the same diameter as that of the hole 25, and the lid body 24 is positioned above the inclined extension part 16. The bottomed cylinder 22 and the lid 24 are fastened to the inclined extension 16 with bolts 26 such that the lines are oriented perpendicular to the inclined extension 16. 27 is a spacer, and 28 is a collar fitted to the bolt 26. As described above, the hollow rod 19 is supported by the bearing collars 20 and 23 so that it is inclined with respect to the floor surface at right angles to the inclined extension part 16 and is movable up and down, but cannot be rotated. ing. That is, the hollow rod 19 is provided with a long groove 29 that is long in the longitudinal direction, and the tip of the rotation prevention bolt 30 screwed onto the bottomed cylinder 22 is fitted into the long groove 29 . An insertion rod 31 inserted into the axial center hole of the hollow rod 19 from below has a long groove 32 formed in the longitudinal direction, and a tip of a rotation prevention bolt 34 screwed into a large diameter portion 33 at the lower end of the hollow rod 19. is fitted into the long groove 32, and the insertion rod 31 cannot rotate relative to the hollow rod 19, but is adjustable in the longitudinal direction and fixed by a butterfly bolt 35. A piano petal insertion portion 36, which is substantially horizontally U-shaped when viewed from the side, is fixed to the lower end of the insertion rod 31 with its opening 37 facing forward. A collar 38 is attached to the center of the hollow rod 19 with a fixing bolt 39 so that its vertical position can be adjusted.
8 and the bearing collar 20 of the bottomed cylindrical body 22, the compression coil spring 40
The hollow rod 19 is biased upward before the piano petal 3 is inserted, and the large diameter portion 33 is pressed against the urethane collar 4.
The head of the hollow rod 19 is in contact with the bottom 21 of the bottomed cylindrical body 22 through the hollow rod 1, so that the head of the hollow rod 19 can support the auxiliary pedal 18 in a desired proper posture.

Effects of the invention: The installation area of the underframe is small, and the insertion rod and the inserted part are exposed to the front of the underframe.The insertion rod is positioned vertically in an inclined position with the opening of the inserted part always facing forward. This makes installation even more convenient, and when the auxiliary pedal is stepped on, the piano petal is moved via the insertion rod, a hollow rod that is tilted slightly forward from the direction directly below the auxiliary pedal, allowing for smooth operation. It will be done.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Figure 1 is a side view of the device in use, Figure 2 is a side view of the device of the present invention, and Figure 3 is a side view of the device in use.
The figure is a perspective view of the support portion that supports the footrest, and FIG. 4 is a sectional view of the main parts of the device of the present invention. 1... Underframe, 2... Chair, 3... Piano petal, 4... Footrest, 16... Inclined extension, 17... Projection, 1
8... Auxiliary pedal, 19... Hollow rod, 31... Insertion rod, 36... Piano petal insertion part, 37...
Opening.

Claims (1)

[Scope of utility model registration request] A footrest 4 is supported above a rectangular underframe 1 placed on the floor between the chair on which the infant performer sits and the piano petal, and the footrest 4 is height-adjustable.
The auxiliary pedal 18 is pivotally attached to the upper surface protrusion 17 of the slanted extension 16, and the hollow rod 19 that supports the auxiliary pedal 18 with its head extends the slanted extension 16 at a right angle. When viewed from the side, an insertion rod 31 is provided at the lower end of an insertion rod 31 which is inserted through the hollow rod 19 in a vertically movable but unrotatable manner, and which is inserted from below into the axial hole of the hollow rod 19 in a non-rotatable manner and is fixed in a height-adjustable manner. Approximately horizontal U-shaped piano petal insertion part 3
6 is fixed with its opening 37 facing forward.