JPH0119183Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a mounting structure for the shelves and reeds of an upright piano.

Conventionally, as shown in Figure 1, the mounting structure for the shelves and reeds of an upright piano is such that a reed 2 consisting of a reed front, a reed middle, and a reed back (not shown) is placed on a shelf 1, and the reed 2 is placed on a shelf 1. A plurality of action bases 3 having axle bolts 4 screwed together are arranged on the rear part of the shelf board 1. The mounting structure is such that the lower end of the bracket is placed on it. Conventional shelf board 1 like this
In the mounting structure of the reed 2, the reference point of the action that strikes the string is the head of the action base bolt 4 on which the lower end of the action bracket is placed, so the placement and installation of the action base is very important. Conventionally, the position of the action base was determined using a ruler to determine the distance from the reference point, and then the screws were secured.The arrangement and installation were quite complicated and required careful attention. It was inevitable. Furthermore, the left and right positions of the keyboard (not shown) placed on the reed 2 are determined by the action determined by the attachment of the action base 3. Since the position of the reed 2 is determined, the installation of the reed 2 is also complicated and causes installation errors.

This idea was made in view of the above-mentioned drawbacks, and involves placing a reed on a shelf board, arranging an action base on this reed, and installing an action base bolt into the action base. Then,
A reference hole passing through the shelf board, reed, and action base is provided, and the action base bolt has a threaded part that is screwed into the action base and a tip part that projects from the threaded part, and The action base bolt is screwed into the reference hole provided in the shelf board, reed, and action base, which solves the above-mentioned drawbacks and allows the action base to be fixed in a simple and accurate manner. This provides a structure that allows positioning.

The details of this invention will be explained below with reference to the drawings of the embodiments. In the subsequent figures, in order to avoid complication of explanation, the same components as those in FIG.

FIG. 2 is a diagram showing an embodiment of the piano shelf/reed mounting structure according to this invention. In the figure, reference holes 1a, 1a are arranged and drilled in shelf board 1 at required positions from the reference point of the action. do. Similarly, the reed 2 is also provided with reference holes 2a, 2a. Furthermore, an action base bolt 4 is installed in the action base 3.
Note that the action base bolt 4 has a head 4a,
An action base bolt having a threaded portion 4b and a tip portion 4c protruding from the tip of the threaded portion 4b is used, and the action base bolt tip portion 4c protrudes from the lower surface of the action base 3. Yoni Action Base 3
Screw together and implant. After that, the action base 3 with the action base bolt 4 installed is made so that the reference holes 1a and 2a of the reed 2 and the shelf board 1 overlap, and the action base bolt tip 4c is fitted into the reference holes 1a and 2a. match. The action base 3 is screwed to the reed 2. Therefore, the reed 2 and the shelf board 1, in which the reference holes 1a and 2a are overlapped with each other, are installed and attached in a desired position.

As described above, according to the piano shelf/reed mounting structure devised, reference holes are drilled at desired positions on the shelf and reed, and on the other hand, the action base bolts are attached to the tip of the action base. The part is planted so as to protrude from the bottom surface of the action base, and simply fit the tip of the action base bolt on the bottom surface of the action base so that it overlaps the reference hole of the shelf board and reed. It is now possible to arrange and install the reed and the action base, and the action attached to the action bracket placed on the head of the action base bolt is always installed at the desired position from the reference point, and the reed is also By always attaching the keyboard to the desired position from the reference point, the positional relationship between the keyboard and the action can be correctly positioned, and the keyboard can be attached accurately.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view showing a conventional piano shelf/reed and action base bolt mounting structure, and Fig. 2 is a schematic perspective view showing an embodiment of the piano shelf/reed mounting structure according to this invention. It is. 1... Shelf board, 2... Reed, 3... Action base, 4... Action base bolt, 4a... Action base bolt head, 4b... Action base bolt threaded part, 4c... Action Tip of shaft base bolt.

Claims (1)

[Scope of utility model registration request] A reed is placed on the shelf board, an action base is placed on the reed, and an action base bolt is planted in the action base, so that the shelf board and
The reed/action base is provided with a reference hole that passes through the shelf plate/reed/action base, and the action base bolt has a threaded portion that is screwed into the action base and a tip that protrudes from the threaded portion. A piano shelf/reed mounting structure, characterized in that the action base bolt is screwed into a reference hole provided in the shelf/reed/action base.