JPH096330A - Pedal device for keyboard musical instrument - Google Patents

Abstract

PURPOSE: To provide a pedal device for keyboard musical instrument capable of eliminating structured waste without impairing the function of pedal. CONSTITUTION: This pedal device for keyboard musical instruments is constituted by forming an aperture in a case part 13 disposed in the lower part of the front surface of a musical instrument body 1 and disposing the pedal 14 to face the aperture 13 from the inside of the musical instrument body 1. The device has a regulating member 19 for regulating the leaping up position of the pedal 14. This regulating member 19 is mounted at the bottom plate 5 in the musical instrument body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pedal device for a keyboard instrument such as an upright piano.

[0002]

2. Description of the Related Art FIG. 3 shows a structure around a pedal in a conventional upright piano. This kind of piano is provided with three pedals 31, and each pedal 31
The base 3 is rotatably attached to the bottom plate 33 via the support metal fitting 32, and the front half of the opening 3 is formed in the front base 34.
It projects outside from 4a. The push rod 37 is attached to the middle of the pedal 31 via the connecting bolt 35 and the balance 36.
Are connected, and when the pedal 31 is stepped on, the push rod 37 is moved upward. In this case, when you release your foot from the pedal 31, the pedal 31 jumps up,
The jumping position is regulated by hitting the felt 38 on the upper side of the opening 34a.

[0003]

As described above, in the conventional pedal device for a keyboard instrument, since the front base 34 receives the impact due to the jumping up of the pedal 31 and the lower front plate 39 at the upper end surface, it is thick and strong. It is composed of a plate material. For this reason, the front base 34 itself is a strong one, although it has almost no effect on the structural strength of the keyboard instrument, which causes a cost increase.

The present invention has been made in order to solve such a problem, and provides a pedal device for a keyboard instrument capable of eliminating structural waste without impairing the function of the pedal. Is the purpose.

[0005]

In order to achieve the above object, a pedal device for a keyboard musical instrument of the present invention has an opening formed in a case part arranged at a lower portion of the front surface of the musical instrument main body, and the opening is formed from inside the musical instrument main body. In a pedal device of a keyboard musical instrument facing the pedal, a regulating member for regulating the jumping position of the pedal is provided,
It is characterized in that the restriction member is attached to the bottom plate in the main body of the musical instrument.

[0006]

According to the pedal device of the keyboard instrument of the first aspect, since the restricting member for restricting the jumping position of the pedal is attached to the bottom plate in the main body of the musical instrument, the jumping up of the pedal is prevented from occurring on the front surface of the main instrument body. It can be received by the bottom plate via the restricting member instead of the case part arranged in the lower part. For this reason, the case component at the lower part of the front face does not need to consider the impact due to the jumping up of the pedal, and may be any one that can form an opening for the pedal.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A pedal device for a keyboard instrument according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings. This keyboard instrument is an upright piano, and FIG. 1 is a partially cutaway side view thereof. As shown in the figure, the piano body 1 of the upright piano is composed of left and right main plates 2,
The front 3 and the rear 4 that are hung between the upper ends of the main board 2.
And a bottom plate 5 spanned between the lower ends of the main plate 2 constitute an outer frame, on which left and right arms 6 holding the keyboard part, a lower roof 7
And a shelf board 8 is provided. A pair of left and right shelf support posts 9 is provided below the shelf plate 8, and the shelf support posts 9 are supported by the left and right wife bases 10. In addition, casters 11, 11 are provided on the lower side of each wife base 10 in the front and rear.

On the other hand, an upper front plate 12 is provided on the upper front portion of the piano body 1 so as to cover between the front roof 3 and the lower roof 7, and between the shelf plate 8 and the bottom plate 5 on the lower front portion. A lower front plate (case member) 13 is provided so as to cover the. And
At the center of the lower end portion of the lower front plate 13, three pedals 14 (only one is shown in the drawing) are arranged.

As shown in FIG. 2, an opening 13a is formed at the lower end of the lower front plate 13 so as to correspond to each pedal 14, and the front half of the pedal 14 extends forward from this opening 13a. It is protruding. Each pedal 14 has a bottom plate 5 at its base.
Is rotatably attached to a support fitting 15 attached to the upper surface of the. A connecting bolt 16 is provided in the middle of the pedal 14.
And the lifting rod 18 is connected via the balance 17,
A damper (not shown) or the like is connected to the tip of the lifting rod 18. When the pedal 14 is depressed, the lifting rod 18 is moved upward via the balance 17, and the damper or the like is operated.

On the other hand, the connecting bolt 16 and the lower front plate 13 described above.
A restriction member 19 that restricts the range of rotation of the pedal 14 is provided between and. The regulating member 19 is provided so as to include the pedal 14, and is attached to the bottom plate 5 at the lower portion. Felts 20a are provided on the upper and lower inner surfaces of the regulating member 19,
20b are attached respectively, and the lower felt 20
The pedaling position of the pedal 14 is restricted by b, and the jumping position of the pedal 14 is restricted by the upper felt 20a. That is, the pedal 14 strikes the lower felt 20b when the pedal 14 is depressed, and strikes the upper felt 20a when the pedal 14 is released. In this case, the pedal 14 is biased upward by a spring (not shown), and is normally in contact with the upper felt 20a and held substantially horizontally.

As described above, in this embodiment, since the jumping position of the pedal 14 is restricted by the restricting member 19 fixed to the bottom plate 5, it is necessary to receive the shock caused by the jumping up of the pedal 14 by the front case part. However, the front base which is the case part of this portion is omitted, and the lower front plate 13 is used as in the embodiment.
Can be extended to the portion of the bottom plate 5. Therefore, since the front base is omitted, the manufacturing cost of the entire piano can be reduced.

In the case where the pedal cover is provided inside, the regulating member may be built in the pedal cover. Further, the shape and structure of the restriction member are arbitrary as long as they can restrict the jumping position of the pedal.

[0013]

As described above, according to the pedal device of the keyboard musical instrument of the present invention, the front base is omitted for the case parts at the lower front surface of the keyboard musical instrument because it is not necessary to consider the impact due to the jumping of the pedal. It will be possible. That is, instead of the front base, this portion can be formed by extending the lower front plate. Therefore, the manufacturing cost can be reduced without impairing the function of the pedal.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of an upright piano to which a pedal device according to an embodiment of the present invention is applied.

FIG. 2 is a partially cutaway enlarged side view around a pedal of the upright piano according to the embodiment.

FIG. 3 is a partially cutaway enlarged side view around a pedal of a conventional upright piano.

[Explanation of symbols]

 1 Piano body 13 Lower front plate 13a Opening 14 Pedal 19 Restricting member

Claims (1)

[Claims] 1. A pedal device for a keyboard instrument in which an opening is formed in a case part disposed in a lower front portion of a musical instrument body, and a pedal is exposed from the inside of the musical instrument body. A pedal device for a keyboard musical instrument, comprising a regulating member for regulating, and the regulating member being attached to a bottom plate inside a musical instrument body.