JP7146155B1 - single action pedal harp - Google Patents

Abstract

A harp that is lightweight, portable, and can be operated semitones by a pedal. A single-action pedal harp having a lumbar tree (21), a strut (22), and a pedal (17), wherein the lumbar tree (21) is provided with a through hole (4), and tuning rods (5, 24) are inserted into the through hole (4). and a link mechanism 7 having a notch having the tuning rods 5 and 24, and a single power transmission mechanism provided on the side surface of the arm tree 21 and the side surface of the support 22, the link having the notch The mechanism 7 is connected to the pedal 17 via the single power transmission mechanism, and when the pedal 17 is operated, the operation is guided to the tuning rods 5 and 24, enabling tuning. It is characterized by [Selection drawing] Fig. 2

Description

The present invention relates to the structure of a harp.

There is a demand for a harp that is lightweight and can be operated semitones with pedals.

Japanese Utility Model Publication No. 34-7049

Salviharp product information http://salviharps. jp/

Problems to solve the invention

A grand harp used in an orchestra uses a lot of heavy metal materials, so the sound tends to be hard, and the warm tone peculiar to wood is lost. On the other hand, as disclosed in Patent Document 1, since the Irish harp does not use heavy metal materials, it is possible to obtain a warm timbre. There is a problem that it is not possible to play

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. To provide a new mechanism that allows semitone operation with one touch.

Means to solve problems

A single-action pedal harp having a arm tree 21, a strut 22, and a pedal 17, wherein the arm tree 21 is provided with a through hole 4, the tuning rods 5 and 24 inserted into the through hole 4, and the tuning rods 5 and 24 inserted into the through hole 4. A link mechanism 7 having a notch having rods 5 and 24, and a single power transmission mechanism provided on the side surface of the wood 21 and the side surface of the support 22, the link mechanism 7 having the notch , is connected to the pedal 17 via the single power transmission mechanism, and when the pedal 17 is operated, the operation is guided to the tuning rods 5 and 24 to enable tuning. Characteristic single action pedal harp.

Effect of the invention

Since the entire Ude wood 21 is made of wood, a warm timbre can be obtained and it is lightweight, but the pedal 17 can be used to obtain a semitone operation of the strings with one touch.
In addition, it is extremely small and lightweight, weighing only about 10 kg for the 27-string model and about 14 kg for the 34-string model, so it is convenient to carry as hand luggage on public transportation and is very familiar.

Detailed left-hand side view of a single-action pedal harp according to the present invention Detailed right hand side view of a single action pedal harp Enlarged sectional view from the Ude tree treble side, strings open Enlarged cross-sectional view from the treble side of the Ude tree, string semitone rising state Enlarged sectional view from above the Ude tree, string open state Enlarged sectional view from above Ude tree, chord semitone rising state Articulatory structure of the grand harp Diagram of using a sandwich-type rod as an articulating rod

FIG. 1 is a side view showing the structure of the player's left hand side of the single-action pedal harp according to the present invention, and a detailed enlarged view of a portion (the circled portion A). The single-action pedal harp has an arm tree 21, a strut 22 and a pedal 17, and a tuning pin 1, a string holding pin 2 and a string support fitting 9 are attached to the arm tree 21. - 特許庁A through-hole 4 is provided in the arm tree 21 , and a tip of a hook-shaped rod (tone rod) 5 with a return spring is provided with a rotation restricting means by a guide pin 3 and is inserted into the through-hole 4 .

FIG. 2 is a side view showing the structure of the player's right hand side of the single-action pedal harp according to the present invention, and a detailed enlarged view of a portion (the circled portion B). Detail B in FIG. 2 shows that the adjustable length rear end 6 of the rod is connected to a linkage 7 having a notch 70 pivoted by the link axle support fitting 8 . Also, the link mechanism 7 having the notch 70 has a hook-shaped rod (toning rod) 5 with a return spring.

A link mechanism 7 having a notch 70 on the bass side and a second link mechanism 11 are connected with a flexible wire 12, and the flexible wire 12 is also used from the second link mechanism 11, an upper guide member 13 is passed through, and a thin rope is used. Wrap 15. A thin rope 15 is passed through the lower guide member 14 and connected to the pedal rod 16 as it is. The pedal rod 16 is connected to a pedal 17, and the pedal 17 is attached to a pedal attachment plate 18 by a pedal rear end attachment shaft 19 in a rotatable state. Seven pedals 17 are provided corresponding to each of the scales from (do) to (si), and all tones can be articulated.

FIG. 3 is a view showing a cross-section of the Ude tree 21 from the high-pitched tone side, showing a state in which the strings 20 are not in contact with the tip of the hook-shaped rod 5 with return spring and the string support fitting 9 .
FIG. 4 is a view showing a cross section of the Ude tree 21 from the treble side, in which the tip of the hook-shaped rod 5 with a return spring touches the string 20 by stepping on the pedal 17, is pulled, hits the string support fitting 9, and is tuned.

FIG. 5 is an enlarged cross-sectional view of the Ude tree 21 from above, similar to FIG.
FIG. 6 is an enlarged cross-sectional view of the lumbar tree 21 from above, showing the state of articulation when the long rod 10 is pulled by stepping on the pedal 17. FIG.
On the other hand, FIG. 7 is a diagram showing the articulatory structure of the grand harp, showing that heavy metal materials are used unlike the present invention. The shaded area in FIG. 7 indicates that it is made of a heavy metal material.

FIG. 2 shows a single power transmission mechanism provided on the side of the Ude wood 21 and the side of the support 22 for tuning (to make a sound) connected to the pedal 17. It describes all routes up to 20.
There is a pedal rod 16 connected to the pedal 17 and a thin rope 15 wound around the pedal rod 16. The thin rope 15 passes through the lower guide member 14 and winds around the flexible wire 12. - 特許庁The flexible wire 12 passes through the upper guide member 13 and is connected to the second link mechanism 11. From the second link mechanism 11 to the link mechanism 7 having the notch 70 provided in the lowest tone part, the same is flexible. The wires 12 are tied together and connected together using long rods 10 up to the link mechanism 7 which has a notch 70 with all of them.

A rear end portion 6 whose rod length is adjustable is biting into a notch 70 in a floating state in a hook-shaped rod 5 with a return spring. In this state, the string 20 holds the fundamental tone while the pedal 17 is not operated. Next, when the pedal 17 is stepped on, the tip of the hook-shaped rod 5 with return spring pulls the string 20, and the tip of the hook-shaped rod 5 with return spring pulls the string 20, and further contacts the string support metal fitting 9. Then, by further pulling, articulation (acquisition of voicing) can be achieved.
So far, I have explained all the parts necessary for the articulation of a single-action pedal harp and how they work. This system, which consists of the basic parts of a harp and all other parts necessary for articulation, can be called a single power transmission mechanism.

That is, the link mechanism 7 having the notch 70 is connected to the pedal 17 through one power transmission mechanism. When the pedal 17 is operated, the operation is guided to the hook-shaped rod (toning rod) 5 with a return spring to enable the tuning. At this time, since the link mechanism 7 has the notch 70, the hook-shaped rod (tone rod) 5 with a return spring can be reliably pulled.

FIG. 8 is completely different from FIGS. 1-6. Until now, the single-action pedal harp of the type equipped with the hook-shaped rod 5 with a return spring has been described, but this is a diagram of a case in which a clip-type rod 24 is used as an articulating rod instead of the hook-shaped rod 5 with a return spring. .
FIG. 8 is a perspective view from the string row side of the pinch-type rod (tuning rod) 24, showing the string 20 in an open state. A knife-shaped wide portion at the tip of the pincer rod touches the left side of the string 20 and moves to the cone pin 34, and is tuned by further pressing.

As described above, the single-action pedal harp of the present invention has a power transmission mechanism consisting of a tuning rod inserted into the through hole in the hull wood and a link mechanism having a notch having the tuning rod. Since it is connected to the pedal via a Since the total weight of the metal used is extremely light, it is small and lightweight, and it is convenient to carry as hand luggage on public transportation, making it very familiar.

1 Tuning pin 2 String holding pin 3 Guide pin 4 Through hole 5 Hook shape rod with return spring (tuning rod)
6 Rod length adjustable rear end 7 Link mechanism with notch 70 8 Link shaft support fitting 9 String support fitting 10 Long rod 11 Second link mechanism 12 Flexible wire 13 Upper guide member 14 Lower guide member 15 Thin rope 16 Pedal rod 17 Pedal 18 Pedal mounting plate 19 Pedal rear end mounting shaft 20 String 21 Arm tree 22 Post 23 Return spring 24 Pincer rod (toning rod)
26 Hook shape with spring 33 Guide thin pin 34 Cone pin 70 Notch

Claims (3)

A single-action pedal harp comprising a arm tree (21), a strut (22) and a pedal (17), wherein the arm tree (21) is provided with a through hole (4), and the through hole (4) is Inserted articulation rods (5, 24), a link mechanism (7) having a notch with said articulation rods (5, 24), and on the side of said arm tree (21) and on the side of said strut (22) The link mechanism (7) having the notch is connected to the pedal (17) via the one power transmission mechanism, and the pedal ( 17) is operated, the operation is led to the articulation rods (5, 24) to enable articulation. Single-action pedal harp according to claim 1, characterized in that said articulating rod is a hook-shaped rod (5) with a return spring. A single-action pedal harp according to claim 1, characterized in that said tuning rod is a pincer rod (24).

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