JPS588514B2 - Spatsutsuyu Late Key - Osona Etagatsuki - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a musical instrument, such as a saxophone, with keys, stops, caps or other actuating elements actuated by the fingers of the player arranged adjacent to each other.

If, when in the rest position, the player has to press, with the same finger, adjacent keys whose operating surfaces are at the same height for a short period of time in succession, the first spatulate key is pressed. The finger that has been moved closer to the main body of the saxophone is now located closer to the main body than the operating surface of the second spatulato key.

Next, even if the player tries to slide his finger from the first spatula rate key to the second spatula rate key,
There is a height difference between the two keys from the main body, so they cannot be slid.

The player makes a movement of lifting the finger at least a distance sufficient to overcome the height difference, then makes a second movement of moving the finger in a direction perpendicular to the first movement, and finally,
As a third action, the user must put his or her finger down on the operating surface of the second spatula rate key.

In this case, the player only has to move his finger in the direction away from the main body until it reaches the resting height of the second spacing rate key, but he cannot know that his finger has reached that height.

Therefore, take one safety margin and move the finger as high as is necessary to avoid any risk of the finger hitting the edge of the sputtering key.

Due to the distance to be compensated for in the first movement and the imprecision of that movement, the amount of time the player has to press the second spatulate key is reduced.

After all, even a highly skilled player cannot maintain the tempo of certain pieces.

In the past, it has been proposed to provide a sputtering key with an adjacent edge with rollers forming a curved guiding edge.

These rollers allow quick lateral finger movement to one of the sputtering keys.

However, one safety margin in the first finger movement motion “
does not decrease.

This "safety margin" has a negative impact on musical fidelity.

The present invention eliminates the above-mentioned drawbacks of the conventional example by making the "1 safety margin" unnecessary.According to the present invention,
The player only has to raise his fingers as high as necessary to cross the gap between spatuturate keys.

The musical instrument of the present invention includes two spatula rate keys, one of which is composed of a fixed part and a movable part rotatably connected to the fixed part.

The movable part is adjacent to the fixed part and has an edge parallel to the center of rotation.

The movable part is, for example, the tongue of the other sputtering key (or other connecting member) that protrudes to the bottom surface of the movable part.
Supported by

The lower surface of the movable part extends to the lower surface of the fixed part, which is the back side of the operating surface.

When the fixed part of the sputtering key is pressed, the pivot joint, ie, the hinge part, lowers together with the fixed part.

The area of the movable part adjacent to the other spatulate key connected by the other spatulate key is maintained at the same height as the other spatulate key.

The movable part thus forms a guiding ramp across which the player can continuously slide his finger from one spatulato key to the other.

To facilitate the swinging of the movable part, the surface of the movable part should be lower than that of the fixed part, and the surface of the movable part should be in contact with the other sputtering key at a position farther from the hinge than other parts of the movable part. It is best to shape the movable part so that the dots are aligned.

To that end, the hinge can be formed at an acute angle with the edge adjacent to the other sputtered key.

The contact point can then be located on a perpendicular line drawn from the midpoint of the hinge.

In order to obtain the same effect when the finger returns to the first spatulation key as when moving to the second spatulation key, a pull-down member is placed at a certain distance from the hinge of the movable part. is fixed.

When the second spatulation key is pressed, the member is pulled down with the second spatulation key.

The member then pulls the movable part downward. The movable part slopes from a hinge part that is at the same level as the first sputtering key to a lowered area, such as the aforementioned contact point to which the pull-down member is fixed.

Generally, this member is provided on the opposite surface of the spacing rate key from the operating surface, so that the operating surface remains flat.

The two functions mentioned above can also be achieved at once by one member.

That is, the push-up member can be a knob.

The knob protrudes from the movable part and engages in a push-up fork or groove provided on the other spatulation key, which knob further acts as a pull-down member in conjunction with the upper surface of the groove.

However, it would be better to provide the other spatitulate key with a tab for both pushing up and pulling down that engages the fork of the moving part, which is formed with a pulling tongue piece of the moving part and a push-up surface opposing it. good.

In order to achieve both the movable part that rotates around various rotational axes and the various rotational movements of the spout rate key, a member is used in which a pull-down function and a push-up function are combined with play. It is a good idea to

The fork-engaging end of the push-up or pull-up knob may be conical, and alternatively, the fork may be enlarged to facilitate movement of the knob.

an acute angle in the same direction and approximately equal to that formed between the rondo and the lever for spatuturate key operation;
By forming a hinge between the movable part and the edge adjacent to the other sputtered key, movement of the knob in the fork is restricted.

Hereinafter, the present invention will be explained in detail according to embodiments shown in the drawings.

A rod 1 and a rod 2 are rotatably mounted on a main body 4 of the saxophone according to the present invention via a bearing 3.

A sputtering key 5 is fixed to the tip of a lever 6 that is integral with the rod 1.

The other sputtering key 7 is fixed to the tip of the lever 8 which is integral with the rod 2.

Levers 6 and 8 and rods 1 and 2 form acute angles a, respectively.

The spout rate key 5 has a fixed part 10 and a movable part 11.
It has a substantially rectangular shape, and is fixed to the lever 6 on the lower surface of the fixing part 10, that is, on the opposite side of the operating surface 9 of the fixing part 10.

The movable part 11 is rotatably coupled to the edge of the fixed part 10 via a well-known pivot joint, ie, a hinge part 12.

The hinge part 12 consists of a male part on the movable part side, a female part on the fixed part side, and a pin passing through them.

The edge 14 of the movable part 11 is connected to the other sputtering key.
It faces Edge 15 of 7.

The pin 13 forms an acute angle with the edges 14 and 15 that is approximately equal to the acute angle a described above and in the same rotational direction.

Edge 16, which is the free end of movable part 11, is adjacent to edge 14.

The corner surrounded by the edges 14 and 16 of the movable part 11 is on a perpendicular line from the midpoint of the pin 13, and
It is located far away from the pin 13 compared to other parts of the pin 13.

An L-shaped tongue extends from the lower surface of the corner, and the arm 17 of the tongue and the lower surface of the corner form a fork (bifurcated).
is formed.

The opening of the fork, that is, the distance between the arm 17 and the lower surface of the movable part 11 increases from the base to the tip.

Regarding the edge 16, since the arm 17 is twisted,
An inlet on the side of the fork is formed below the edge 14.

A tongue piece 18 from which a taper knob 19 extends is provided on the lever 8 of the other sputtering key 7.

A knob 19 projects from the edge 15 and engages the fork from a side entrance.

The two spatula rate keys 5 and 7 are shown in the rest state in FIG.

In FIG. 3, the fixed part 1 of the sputtering key 5 is
A state in which 0 is pressed is shown.

The knob 19 integrated with the other spacing rate key 7 is kept in an engaged state, and the fixed part 10 forming a member for pushing up the lower surface of the corner of the movable part 11 described above
Since the movable part 11 is pulled down by the knob 19, the movable part 11 rotates around the knob 19.

The movable part 11 forms a guide slope from a hinge part 12 located at the same height as the spatula rate key 5 to a corner located at the same height as the other spatula rate key 7.

The movement of the knob in the fork in two orthogonal directions, and in particular the taper of the knob 19, allows rotation of the sputtering key 5 and the movable part 11 about different rotation axes.

In FIG. 4, the other sputtering key 7 is pressed, thereby pushing the knob 19 down.

Therefore, since knob 19 pushes arm 17, knob 1
9 pulls down the movable part 11 through the corner surrounded by edges 14 and 16.

The movable part 11 rotates around a hinge part 12.

This movable part 11 forms a guide slope from a corner located at the same height as the other spatulation key 7 to a hinge part 12 located at the same height as the spatulation key 5. .

In the process of lowering the corner, the knob 19 moves away from the fork joint and at the entrance of the side of the fork, moves away from the fork, thereby drawing a fork-like trajectory.

Since there is play between the knob 19 and the fork, the other spacing rate key 7, which rotates around the rod 2,
The gap between the movable parts 11 rotating around the hinge part 12 is not closed.

FIG. 5 shows another embodiment.

Since the push-up and pull-down knobs 19 are constructed integrally with the spatulate key 5, the other spatulate key 7 is provided with a knob receiving member for pushing up or lowering the knob.

Instead of being in the form of a fork, the knob receiving member is in the form of a groove 20 having an opening large compared to the cross-section of the knob, in which the knob can move.

As shown in FIG. 6, the positions of the knob and fork can be changed.

In other words, the knob 19 can be located below the movable part 11 of the spatulait key 5, and the fork can be located below the spatuture key 7.

Alternatively, the knob may be located below the spatula rate key 7 and the fork may be located below the movable part 11 of the spatula rate key 5.

As described above, according to the present invention, at least one spatulation key includes a fixed part and a movable part, and a part of the movable part is always at approximately the same height as the operation surface of the adjacent spatulation key. Since the fingers are guided to move from or to the adjacent spatula rate keys, a musical instrument that can be played extremely smoothly can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the main parts of a saxophone according to the present invention partially shown in plan view, FIG. 2 is a perspective view of two adjacent spatulato keys in their rest positions, and FIG.
FIG. 4 is a perspective view of the other spacing rate key being pressed. FIGS. 5 and 6 are sectional views showing other embodiments. 5... Spatuture rate key, 7...
Other spatuture keys, 9... Operation surface, 1
0...Fixed part, 11...Movable part, 12
...Hinge, 14,15.16...Edge, 17...Arm, 19...Knob.

Claims (1)

[Claims] 1. A first sputtering key having a fixed part, a movable part, and means for rotatably coupling the movable part to the fixed part adjacent to the fixed part and having an edge parallel to the rotation axis. a second sputter rate key adjacent to the first sputter rate key, and a connecting member provided on each back surface of the first and second spatulate keys and loosely engaged with each other, When the player presses one of the two spatula rate keys, the movable part is rotated about the rotation axis by the connecting member, so that a part of the surface of the movable part is in the second spatula rate key. A musical instrument equipped with spatulate keys that are at approximately the same height as the operating surface of the keys.