JPS6318057Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pedal box support for a piano.

Conventionally, as shown in FIG. 2, the pedal box 10 is removably suspended from the lower surface of a shelf board 12 that constitutes the bottom plate of the piano housing 11 by means of bolts 13. At times, pedal box 1
In order to prevent the 0 from wobbling particularly backward, its rear surface was regulated in position by two support rods 15. The support rods 15 are attached such that the base ends are rotatably supported by metal fittings 16 on both left and right ends of the back of the pedal box 10, and the tips are drilled into the lower surface of the shelf board 12. It was attached by being inserted into the two receiving holes 12a, respectively. In this case, the depth of the receiving hole 12a is such that the pedal box 10 is perpendicular to the lower surface of the shelf board 12 when the tip of the support rod 15 is inserted, and that the pedal box 10 is not twisted left or right relative to the front surface of the shelf board 12. I had to set it so that it didn't exist. Therefore, the receiving hole 12a must be drilled in advance to be shallower than the required dimension, and the depth of the left and right holes must be adjusted using a drill by matching the actual items, which is very time-consuming. It was hot.
Also, if this receiving hole 12a is made too deep than the required dimension, the tip of the support rod 15 and the receiving hole 12a
A gap will be created between the bottom of the
When operating the pedal 14, the pedal box 1 is moved to a position where the tip of the support rod 15 comes into contact with the bottom of the receiving hole 12a.
0 moved and was unable to fully fulfill its function as a support rod.

The present invention has been made in response to such conventional circumstances, and includes a support rod whose base end is rotatably attached to the back of the pedal box as a support for a pedal box.
The support rod is formed separately from the piano case, is attached to the lower surface of the piano case, and has a holding part capable of holding the tip of the support rod, thereby making it possible to adjust the installation. , is intended to be simple and complete.

The following is a third example showing the first embodiment of the present invention.
The details will be explained with reference to FIGS. The same parts as in the conventional example will be described with the same numbers assigned.

In the figure, 20 is a support tool, and the support rod 15
and a support 21. The base end of the support rod 15 is pivotally supported by a metal fitting 16 on the back surface of the pedal box 10 so as to be rotatable. The support 21 has a rectangular parallelepiped shape, and screw holes 21a are bored at the four corners. Reference numeral 22 denotes a cylindrical hole bored in the support 21, into which the tip of the support rod 15 can be inserted from below. Further, as shown in FIGS. 3 to 5, the perforation hole 22 is perforated obliquely upward. The inclination angle of the drilled hole 22 is set to be equal to the angle formed by the support rod 15 and the shelf board 12 when the pedal box 10 is supported by the support rod 15, as shown in FIG. . Further, the diameter of the perforated hole 22 is set to be slightly larger than the diameter of the support rod 15. Numeral 23 is a wood screw, by which the support 21 is screwed onto the lower surface of the shelf board 12.

In the structure configured as above, first,
Place the pedal box 10 in a predetermined position on the underside of the shelf board 12,
It is suspended and supported by bolts 13. Next, the support rod 15 is inserted into the perforation hole 22 of the support 21, and then rotated upward about the pivot 16a to bring the tip of the support rod 15 into contact with the lower surface of the shelf board 12. .
In this state, the support 21 is moved upward using the support rod 15 as a guide, brought into contact with the shelf board 12, and then fixed in that position with wood screws 23. When the pedal box 10 is suspended and supported on the shelf board 12, if the pedal box 10 is tilted in the front-rear direction or twisted in the left-right direction, the position where the tip of the support rod 15 comes into contact with the shelf board 12 should be adjusted. The support 21 is fixed at that position with the tilt and twist corrected. At this time, the diameter of the drilled hole 22 is the same as that of the support rod 15.
Since the diameter is set slightly larger than the diameter of the damper mechanism, it is easy to attach the support 21 even if the angle between the shelf 12 and the damper mechanism is slightly different from the set value.
In addition, since the inclination angle of the drill hole 22 is set to be equal to the angle formed by the support rod 15 and the shelf board 12, when the support tool 21 is moved upward, the shelf board 12
The lower surface of the support 21 can be brought into contact with the upper surface of the support 21 without any gap.

When removing the pedal box 10 for transporting a piano, etc., it is sufficient to loosen the bolts 13, remove the pedal box 10 from the shelf board 12, and pull out the support rod 15 from the bored hole 22. At this time, support 2
1 remains attached to the shelf board 12, so
By removing the pedal box 10, the mounting position of the support 21 does not shift. Therefore, when reinstalling the pedal box 10, all you have to do is insert the tip of the support rod 15 into the drilled hole 22, and then screw the pedal box 10 onto the shelf board 12 with the bolts 13. There is no need to make any adjustments.

Next, details will be explained with reference to FIG. 6 showing a second embodiment of the support. The same parts as in the conventional example will be described with the same numbers assigned.

In the figure, reference numeral 30 denotes a rectangular parallelepiped-shaped support that is long in the left-right direction, and screw holes 30a are bored at the four corners. The screw hole 30a has a cross-sectional shape that is elongated from front to back. Reference numeral 31 denotes two cylindrical holes drilled through the support 30, into which the tips of the two support rods 15 can be respectively inserted. The holes are bored at intervals equal to the intervals of the support rods 15. The inclination angle of the perforation hole 31 is also set to be equal to the angle formed by the support rod 15 and the shelf board 12, as in the first embodiment. 3
2 is a flat washer, and 33 is a screw.

In the structure configured as described above, the pedal box 10 is suspended and supported at a predetermined position on the lower surface of the shelf board 12 by bolts 13. Next, support rod 15
are inserted into the holes 31 of the support 30, and then the support rod 15 is brought into contact with the shelf board 12, and the support tool 30 is screwed onto the lower surface of the shelf board 12 with the screw 33 through the flat washer 32. wear it. At this time, the support 30
Since the screw hole 30a is formed in the shape of a long hole in the front and back, even if the mounting position is slightly misaligned due to the wide width of the screw hole 30a, the mounting misalignment can be easily corrected.

Next, the details of the third embodiment will be explained with reference to FIG. 7 showing the third embodiment. The same parts as in the conventional example will be described with the same numbers assigned.

In the figure, 40 is a support, 41 is a hole drilled in the support 40, and the support 40
A hole is formed upward from the lower surface of the support part 40 by about 1/2 of the thickness of the support part 40. 42 is a screw hole.

In the structure configured as described above, the pedal box 10 is screwed onto the shelf board 12 with bolts 13,
The support rod 15 is inserted into the hole 41 of the support 40. In this state, the support rod 15 is rotated upward, the support tool 40 is brought into contact with the shelf board 12, and the support tool 40 is screwed onto the shelf board 12 at that position, thereby completing the installation.

As described in detail above, according to the present invention, the pedal box support 20 includes the support rod 15 whose base end is rotatably pivoted to the back surface of the pedal box 10, and the piano housing 11 which is separate from the support rod 15. The support rod 21, 30, 40 is formed and attached to the lower surface of the piano housing 11, and has holding parts 22, 31, 41 capable of holding the tip end of the support rod 15. Therefore, to attach the support 20, with the pedal box 10 attached to the piano housing 11, rotate the support rod 15 while holding the tip of the support rod 15 by the supports 21, 30, and 40. move the supports 21, 30,
40 only needs to be attached to the piano housing 11. Also, when attaching and detaching the pedal box 10 during transportation etc.,
All you have to do is remove the bolts that suspend and support the pedal box 10 on the underside of the piano housing, and pull out the tips of the support rods 15 from the supports 21, 30, 40, and the support rods 15 are pivoted to the pedal box 10. Since it is attached, it cannot be lost. In this way, the work is much easier and less time-consuming than in the past, and the installation and adjustment can be completed.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a piano, FIG. 2 is a partially cutaway view showing the installation of a conventional pedal box, FIGS. 3 to 5 are views showing a first embodiment of the present invention, and FIG. The figure is a sectional view of the main part showing the installation, FIG. 4 is a perspective view of the support, FIG. 5 is a sectional view taken along the line A-A in FIG. 4, and FIG. 6 is a perspective view of the support showing the second embodiment. 7 are sectional views of main parts showing the third embodiment. In the figure, 10 is a pedal box, 11 is a piano housing, 15 is a support rod, 20 is a support tool, 21, 30,
Reference numeral 40 indicates a support, and reference numerals 22, 31, and 41 indicate perforated holes constituting the holding portion of the present invention.

Claims (1)

[Claims for Utility Model Registration] 1. A pedal box is suspended and supported on the lower surface of a piano casing, and the pedal box is positioned by a support installed between the back surface of the pedal box and the lower surface of the piano casing. In the piano to be regulated, the support tool includes a support rod whose base end is rotatably pivoted to the rear surface of the pedal box, and a support rod that is formed separately from the piano casing and is attached to the lower surface of the piano casing. 1. A piano pedal box support comprising: a support having a holding part capable of holding the tip of the support rod; 2. The piano pedal box support device according to claim 1, wherein the holding portion is a drilled hole into which the tip of the support rod can be inserted from below.