JPS5839508Y2 - Cravie code - Google Patents

Description

[Detailed explanation of the idea] This invention is related to cloudy code.

A conventional cloudy cord is shown in FIG. 1, and in the figure, reference numeral 6 denotes a frame of the cloudy cord, which has a horizontally elongated box shape.

Reference numeral 7 denotes a keyboard supported by the frame, and a tangen 1-7a extending upward is planted on the upper surface of the rear end.

Reference numeral 8 denotes a large number of hit pins arranged in a row extending from the left side wall portion of the frame 6 to the back wall portion of the frame 6 behind the keyboard 7.

Reference numeral 9 denotes a soundboard fixed to the frame 6, and has a bridge 10 on its upper surface.

Reference numeral 11 designates tuning pins, which are arranged in a row on the right side wall of the frame 6 and have the same number as the hitch pins 8, and extend upward through the soundboard 9.

A number of strings 12 are stretched between the hit pin 8 and the tuning pin 11, and extend above the keyboard 7 and across the top of the bridge 10.

Reference numeral 13 denotes a tape-shaped vibration isolating material, which is arranged so as to thread between each string 12, as shown in FIG.

In the cloudy code configured as above,
When you hit a key on keyboard 7, tanjien 7a rises and hits string 12 from below.

At this time, the string 12 is divided by the tangent 7a and vibrates at the natural frequency of the length of the string between the tangent 7a and the top of the bridge, and this vibration is transmitted to the soundboard 9 via the bridge 10 and amplified. .

Of course, at this time, vibration also occurs in the string between the tangent 7a and the hitch pin 8, but this vibration is rapidly attenuated by the vibration isolating material 13.

In the conventional cloudy chord, the low-pitched string 12 is stretched between the hit pin 8 and the tuning pin 11 arranged on the left side wall of the frame, so the low-pitched string 12 of the keyboard 7 is used to strike the string. The keys of the keyboard 7 were short, and as shown in Figure 1, the keys of the keyboard 7 were shaped so that the keys gradually became longer as they went to the treble side from the short keys of the lower part (the keys of the treble part were made longer). (If you don't, you won't be able to hit the strings on the treble side.)

Also, the keys on the bass side are curved, and the curve becomes more pronounced as you get closer to the bass side.

For this reason, the shapes of the keys of the conventional keyboard 7 are all different one by one, and it is very difficult to make them, which has been a problem when mass-producing the Uwaii chords.

Furthermore, since the keys all have different lengths, the key touches are all different, making it very difficult for the player to play.

This invention was made in response to the above-mentioned circumstances, and will be described in detail with reference to the drawings.

In the figure, 20 is a box-shaped frame elongated in the left-right direction, and is divided into a keyboard section 20a and a soundboard section 20b.

A reed 21 is fixed to the frame 20 and extends in the left-right direction at the bottom of the keyboard.

Numerous keys 22 of the same shape are placed on the upper surface of the reed 21 and extend linearly from the front part of the frame toward the rear wall.
2, and is held by a balance pin (not shown) implanted in the reed 21 so as to be vertically swingable.

Reference numeral 23 denotes a stand having a cushioning material 23a fixed to the frame 20, which extends in the left-right direction on the keyboard portion 2Oa, and is normally in contact with the lower surface of the rear end of the key 22a due to its own weight.

Reference numeral 24 denotes a tongue I. which is implanted on the upper surface of the rear end of the key 22a and extends upward.

Reference numeral 25 designates a large number of hit pins arranged along the rear wall of the keyboard section 20a of the frame 20, and are planted on a hit pin rail 25a fixed to the frame 20.

Reference numeral 26 denotes a soundboard fixed to the soundboard portion 20a of the frame 20 (not shown), and has a bridge 27 on its upper surface.

Reference numeral 28 designates tuning pins having the same number as the hitch pins 25 arranged in a row along the right side wall of the frame 20, implanted in a pin plate (not shown), and extending through the sound board 26. extends upward.

A number of strings 29 are stretched between the hit pin 25 and the tuning pin 28, and extend above the keyboard 22 and across the tops of the pieces 27.

Reference numeral 30 denotes a holding plate having a vibration isolating material 31 disposed along the rear wall of the keyboard section 20a of the frame 20, and covers the hit pin 25, and the vibration isolating material 31 presses the strings 29 in the vicinity thereof. In this way, it is fixed to the hit pin rail 25a.

In the cloudy code configured as above,
When the key 22a of the keyboard 22 is hit, the key 22a swings around the balance pin in a direction in which its rear end rises, and hits the string 29 from below the tangent 24, causing the string 29 to vibrate, unlike the conventional method. It's the same as the club e-chord.

At this time, since a large number of hit pins 25 are arranged in a row only on the rear wall of the frame 20, the keys 22a constituting the keyboard 22 may have the same shape and extend in a straight line. The keyboard 22 made up of keys 22a has a constant key touch, making it very easy to play.

Further, since the keys 22a have the same shape, they can be easily mass-produced and manufactured at a very low cost.

Tangent 24 and hitpin 25 that occur when you press a key
The vibration of the string 29 between the two is damped by the vibration isolating material 31.

In this embodiment, the hitch pins 25 are arranged in a row along the rear wall of the frame 20, so when two strings are stretched between the hitch pins 25 and the tuning pins 28, the strings 29 Due to the tension, a concentrated load acts in the diagonal direction of the frame 20, which may cause twisting.
As shown in FIG.
If fixed to the bottom of the string 2, the frame 20 will be reinforced and the string 2
It is possible to prevent distortion of the frame 20 due to the tension of 9.

As described in detail above, this invention has a large number of hitch pins arranged along the rear wall of a box-shaped frame, tuning pins arranged along the side wall of the frame, and a large number of hitch pins arranged between the hitch pins and the tuning pins arranged along the side wall of the frame. A keyboard consisting of a large number of keys extending in a straight line from the player's side toward the back wall was placed on the frame in front of the hitch pin, so that the touch of the keys on the keyboard was constant. It is very easy to play, and since all the keys are linear and have the same shape, it is highly productive, suitable for mass production, and can be manufactured at a very low cost.

Furthermore, since the frame is provided with reinforcing bars that extend in the same direction as the strings, it has many practical effects, such as completely preventing distortion of the frame due to the tension of the strings.

[Brief explanation of drawings]

Fig. 1 is a plan view showing a conventional crayon cord, Fig. 2 is an enlarged perspective view of section A in Fig. 1, Fig. 3 is a plan view showing the crayon cord of this invention, and Fig. 4 3 is an enlarged sectional view taken along line 4-4 in FIG. 3, and FIG. 5 is a drawing showing the bottom surface of the cloudy cord. In the figure, 20 is a frame, 22 is a keyboard, 24 is a tangent, 25 is a hit pin, 28 is a tuning pin, and 29 is a string.

Claims (1)

[Scope of utility model registration request] A large number of hitch pins are arranged in a row along the rear wall of the box-shaped frame, a large number of tuning pins corresponding to the hitch pins are arranged in a row along the side wall of the frame, and the frame between the hitch pins and the tuning pins includes: A bridge extending in the front-rear direction is arranged, a large number of strings are stretched across the bridge between the hitch pin and the tuning pin, and a string is placed on the front frame of the hitch pin from the player's side to the rear wall. A keyboard consisting of a large number of keys extending in a substantially straight line toward each other and each having a tangent corresponding to each of the strings on the upper surface of the rear end is arranged, and the frame has reinforcing keys extending in the same direction as the strings. Crave E cord is characterized by having a crosspiece.