JP3072698U - Auxiliary pedal device for piano performance - Google Patents

Abstract

(57) [Summary] [PROBLEMS] An auxiliary pedal device for piano performance that is used when an infant who sits on a piano chair and his feet do not reach the piano pedal plays Hiano. SOLUTION: A urethane member is used as a member that slides in accordance with the movement of an auxiliary pedal so that the member operates smoothly for many years.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an auxiliary pedal device for piano playing that is used when an infant plays the piano when his / her feet do not reach the piano pedal when sitting on a piano chair.

[0002]

[Prior art]

 With the conventional auxiliary pedal device, moving parts, especially sliding parts, may become unevenly worn during practicing, resulting in unnatural foot movement or adversely affecting the sound of the piano. become. In addition, since the material of the components that make up the device is mostly wood, it is easily damaged by long-term use.

[0003]

[Problems to be solved by the invention]

 An object of the present invention is to provide an auxiliary pedal device for piano performance which does not cause wear, deformation or loosening of the assembly even after being used for many months.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the auxiliary pedal device for piano playing in the present invention has a foot plate above and below a square underframe placed on the floor between a chair on which a child player sits and a piano pedal. A piano performance, which is freely supported, has an auxiliary pedal pivotally attached to the projecting portion of the upper surface of the footrest plate, and has a tube rod whose upper end surface contacts the lower surface of the auxiliary petal and whose lower end surface contacts the upper surface of the piano pedal. In the auxiliary pedal device, the flange of the bottomed cylinder is applied to the lower surface of the footrest plate, and the lid is applied to the upper surface of the footrest plate. The flange of the bottomed cylinder, the footrest plate and the lid are fastened together with bolts that penetrate them, and urethane bearing collars are fitted into the bottom central hole and the central hole of the lid respectively. A spring rod is provided on a tube rod that is supported to be able to move up and down so as to fit into the tube rod, and a compression coil spring is wound around the tube rod between the spring stopper and the bottom of the bottomed cylindrical body.

[0005]

[Embodiment of the invention]

 Numeral 1 is a rectangular underframe large enough to be placed on the floor between the chair 2 on which the infant player sits and the piano pedal 3, and 4 is located above the underframe 1 so that the height of the underframe 1 can be freely adjusted. It is a footrest that is supported. An auxiliary pedal 6 is pivotally attached to the protrusion 5 on the upper surface of the footrest plate 4 so that the upper end surface of the tube rod 7 contacts the lower surface of the auxiliary pedal 6 and the lower end surface contacts the upper surface of the piano pedal 3. It has become. In the figure, a mandrel 8 is inserted into the tube 7 from below so as to be adjustable in position, and a pedal rest 9 is provided below the mandrel 8. A bottomed cylindrical body 10 for supporting the pipe rod 7 is attached to the lower surface of the footrest plate 4, and a lid 11 is attached to the upper surface of the footrest plate 4. A urethane bush 14 is fitted in a center hole 13 of the bottom 12 of the bottomed cylindrical body 10, and a urethane bush 16 is fitted in a center hole 15 of the lid 11. The tube rod 7 is supported by the tubes 14 and 16 so as to be vertically movable. The flange edge 17 and the lid 11 of the bottomed cylinder 10 sandwich the footrest plate 4 and are integrally fastened with bolts 18 penetrating the three. A compression coil spring 20 is wound around the tube rod 7 between the stopper flange 19 fixed to the tube rod 7 with bolts 21 and the bushing 16, and the auxiliary pedal 6 is urged upward. 21 is a spacer and 22 is a collar.

[0006]

[Effect of the invention]

 In the present invention, the bottomed tubular body that supports the pipe rod is firmly fastened to the foot plate, no matter how strong the pedal is pressed, so there is no danger of loosening or deformation, which will hinder piano performance. I can't. In addition, since the pipe rod slides on urethane, it operates smoothly.

[Brief description of the drawings]

FIG. 1 is a side view of a use state.

FIG. 2 is a side sectional view.

[Explanation of symbols]

 Reference Signs List 3 piano pedal 4 foot plate 5 protrusion 6 auxiliary pedal 7 tube rod 8 mandrel 10 bottomed cylinder 11 lid 14, 16 urethane bush 17 flange edge 18 bolt 19 stopper flange 20 compression coil spring

Claims (1)

[Utility model registration claims] 1. A footrest plate is supported between a chair on which an infant player sits and a piano pedal above a square underframe placed on the floor so as to be adjustable in height. In a piano playing auxiliary pedal device in which a pedal is pivotally mounted and an upper end surface abuts on the lower surface of the auxiliary pedal and a tube rod whose lower end surface abuts on the upper surface of the piano pedal, a flange edge of the bottomed cylindrical body is provided. Put the lid on the bottom surface of the footrest plate, put the lid on the top surface of the footrest plate, and fasten them together with bolts that penetrate the flange of the bottomed cylinder, the footrest plate, and the lid. A urethane bearing collar is fitted into the center hole of the lid body, and a spring rod is provided on the tube rod which is fitted to the bearing collar and supported so as to be movable up and down. For playing piano, characterized in that a compression coil spring is wound around a tube rod between Auxiliary pedal device.