JPH0119182Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention concerns a piano reed.

Conventionally, taking the reed 1 of a grand piano as an example, as shown in Figure 1, it is composed of a reed front 2, a reed middle 3, a reed rear 4, a reed gable 5, and a reed middle bundle 6, and the reed middle 3 has a balance. A pin is driven in and a keyboard pillow (felt) 7 is placed on the back 4 of the reed. Although not shown in the figure, reed sliding fittings are provided on the lower surface of the reed gable 5 on the lower surface of the reed medium 3 and the lower surface of the reed medium bundle 6, and are placed on the shelf board 8 so as to be slidable from side to side. This reed 1 slides 2 mm to 3 mm toward the treble side from its normal position by operating a soft pedal (not shown), thereby changing the striking point of the hammer driven by the key to achieve the soft effect of the piano. do.
Therefore, the reed 1 must be flat and capable of sliding smoothly from side to side, and the material used is high-quality natural wood. In recent years, it has become difficult to obtain high-quality natural wood, and in the case of wooden reeds 1, they are extremely susceptible to the effects of dryness and humidity.
Warping occurred, creating a gap between the reed 1 and the shelf board 8, causing noise, and also subtly affecting the feel of the keys on the keyboard, thereby hindering performance.

Regarding the reed 1 having the above-mentioned drawbacks, the inventor of the present invention has conducted various experiments and studies, and has found that since the rear reed 4 has a keyboard grip (not shown), the adhesion with the shelf board 8 is lower than that of the front reed 2 and the reed 4. The reed can be slightly rougher than the 3rd reed, and the adhesion of the 3rd reed to the shelf board 8 can be finely adjusted to a certain extent by using the reed slide fitting.
We were able to obtain study results such as the requirement for strict adhesion between the reed front 2 and the shelf board 8.

This idea was made in view of the above-mentioned drawbacks of the reed and the study results, and it consists of a rear member with a reed center on the front upper surface and a keyboard pillow on the rear upper surface, and a splint made of a relatively flexible material. A metal reed middle bundle has a plurality of adjustment holes and connects a splint attached to the rear of the reed front and the front of the rear member. The purpose is to correct the warpage of the reed.

An embodiment of this invention will be described below with reference to the drawings.

FIG. 2 is a schematic perspective view for explaining an embodiment of the piano reed 1 according to this invention, and parts having the same reference numerals as those in FIG. 1 have the same effect as explained in the same figure. In the figure, a splint 10 made of a relatively flexible material and having an appropriate cut 9 is bonded to the rear of the front reed 2. The reed center 3 and the keyboard pillow 7 are arranged on the upper surface of the rear member 11 made of plywood so that warpage, twisting, etc. do not occur as much as possible. This rear member 11 has a supporting portion 11b and a notch 11 for attaching a metal reed middle bundle.
Provide a. In addition, notches 10a for attaching the metal reed middle bundle are also provided in the reed front 2 and splint 10 parts. The metal reed middle bundle 12 is provided with a plurality of small adjustment holes 12a, and also has screw holes for attachment to the front reed 2 and rear members 11, and is connected with screws or the like (not shown). Further, a reed sliding fitting is provided on the lower surface of the metal reed reed bundle 12 on the lower surface of the reed reed 3. Further, it is preferable to use a plurality of metal reed bundles 12 in view of strength. Further, although the metal reed middle bundle 12 is provided on the lower surfaces of the front reed 2, the splint 10, and the rear member 11, it may be provided on the upper surfaces thereof.

In the piano reed 1 constructed as described above, if the reed warps for some reason after completion, the small adjustment hole 1 provided in the metal reed middle bundle 12
By inserting an adjustment tool such as a screwdriver into 2a and prying it up, it is possible to correct the warpage of the reed 1 to some extent.

As mentioned above, according to the reed according to this invention,
It is very useful because it is possible to complete the reed with a simple structure, and furthermore, the warp of the reed can be corrected after completion.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram for explaining a conventional grand piano reed, and FIG. 2 is a schematic perspective view of a main part for explaining an embodiment of the reed of this invention. In the figure, 1... koto, 2... koto front, 3... koto middle, 4... koto back, 5... koto wife, 6... koto chubu, 7
... Keyboard pillow, 8 ... Shelf board, 9 ... Notch, 10 ...
... splint, 11 ... rear member, 12 ... metal reed middle bundle,
It is.

Claims (1)

[Scope of Claim for Utility Model Registration] A rear member 11 with a reed center 3 on the front upper surface and a keyboard pillow 7 on the rear upper surface, and a reed front 2 with a splint 10 made of a relatively flexible material attached to the rear. and a metal reed middle bundle 12 having a plurality of adjustment holes 12a and connecting the splint 10 attached to the rear of the front reed 2 and the front of the rear member 11. A piano reed featuring