JP5470498B1 - Piano playing shoes - Google Patents

Abstract

The present invention provides a shoe for playing a piano, which enables a beginner or a child to perform the pedal operation intended by the person accurately and stably.
SOLUTION: A piano playing shoe 16 having a shoe main body constituted by an upper 22 and a shoe sole 26 provided with a heel 24, wherein the heel 24 sets the size of the shoe 16 to D, and the shoe sole. 26, when the displacement distance from the rear end 26A of the heel 24 to the rear end 24A of the heel 24 is A, the toe is more than the heel position a of the shoe sole 26 so that the% ratio of A / D is 11.9% or more. The shoe 16 is arranged so as to be shifted to the position b, and the shoe 16 can perform a seesaw operation in the vertical direction with the rear end 24A of the heel 24 as a fulcrum.
[Selection] Figure 2

Description

  The present invention relates to a piano playing shoe, and more particularly to a piano playing shoe suitable for stabilizing pedal operation when a beginner or a child plays a piano.

  The lower part of the piano body is provided with a right pedal, a middle pedal, and a left pedal. In the grand piano, the right pedal is a damper pedal for sustaining the piano sound, and the middle pedal is a sostenuto pedal for leaving only the damper of the pressed keyboard away from the string and leaving a reverberation only in that sound, The left pedal is a shift pedal for subtly changing the tone by shifting not only the volume but also the position of the string.

  In an upright piano, the right pedal is a damper pedal that vibrates the string for a long time without returning the damper even if you release your finger from the keyboard, and the middle pedal places a thin felt between the hammer and the string to increase the volume. A muffler pedal for lowering, and the left pedal is a soft pedal for softening the sound by bringing the entire hammer closer to the string.

  When the performer depresses the pedal during performance, a pedal effect corresponding to the pedal is obtained. This pedal operation is subject to evaluation as a pedaling item in Japanese piano competitions and the like, and it is important whether the pedal operation intended by the person can be performed accurately.

  The stepping position of the pedal is a little inside the foot from the thumb of the right foot and the base of the forefinger so that the portion of the foot rides about 1/3 of the pedal. The piano player needs to maintain the inclined state in which the heel portion of the shoe is put on the floor and the toe portion is raised to the pedal position. When the pedal is depressed, there is an operation of depressing the pedal to the bottom instantly, and when raising the pedal, the operation of returning the pedal to the original position instantly.

  The pedal is installed in a range of about 30 to 70 mm from the floor in consideration of ease of operation when an adult of average height plays. For this reason, when a short person or a child plays, the pedal may not reach the foot, and as a countermeasure against this, it is possible to operate the pedal by raising the body pedal provided on the piano body. An auxiliary pedal device for this purpose is used (for example, Patent Document 1).

  Also, in piano competitions, etc., the pedal height from the floor, pedal comfort, depth (playing of the pedal), and the hardness of the pedal are different from the piano that you normally play. It is necessary to confirm the difference in feel.

  Thus, accurate pedal operation is extremely important for a piano player, but stable pedal operation is extremely difficult. In particular, for beginners and children, it is difficult to keep the body stable when depressing the pedal, and the heel of the shoe often shifts. Furthermore, the heel of the shoe often leaves the floor when trying to quickly reach the bottom of the pedal. As a result, the pedal position is not stable, and there is a problem that accurate pedal operation cannot be performed.

  In addition, there is a technique called “step change” as a pedal operation technique in piano performance. This is a technique that repeats the operation of releasing the damper pedal at the moment when the key is pressed and pressing the damper pedal immediately after the key is pressed. As a result, it is possible to resonate the keyed sound without interruption and without mixing. In other words, “stepping” can be said to be a stepping operation with the same pedal.

  This “step change” needs to be performed quickly and continuously for each keystroke, and in particular, the operation of releasing the pedal places a greater burden on the foot muscles than the operation of pressing the pedal. The reason for this is that when you step on the pedal, you only need to apply weight, so you don't need to use much muscle, but when you release the pedal, you lift the toe up with your muscles. This is because the muscles are overworked. For this reason, it is difficult for adults to perform stable “stepping”, and even more difficult for children to operate.

  Further, when the auxiliary pedal device is used, since the pedal is indirectly operated through the auxiliary pedal, stabilization of the pedal operation is required more than the direct pedal operation.

JP 10-228273 A

  However, in the past, there was no way to stabilize the pedal operation other than repeated practice. For this reason, even for beginners and children, there has been a demand for a device for accurately and stably performing the pedal operation intended by the person himself / herself.

  The present invention has been made in view of such circumstances, and in particular, provides a shoe for playing a piano capable of accurately and stably performing a pedal operation intended by the user even for a beginner or a child. For the purpose.

  In order to achieve the above object, a shoe for piano performance according to the present invention is a shoe for piano performance in which a shoe main body portion is constituted by an upper and a shoe sole having a heel. When the size is D and the shift distance from the rear end of the shoe sole to the rear end of the heel is A, the heel has the shoe so that the% ratio of A / D is 11.9% or more. The shoe is arranged so as to be shifted to the toe position side from the heel position of the bottom, and the shoe can perform seesaw operation in the vertical direction with the rear end of the heel as a fulcrum.

  In addition, the shape in the planar direction of the rear end portion of the shoe sole is usually formed in a curved shape. Therefore, the rear end of the shoe sole mentioned here is the longest part in the shoe size direction (longitudinal direction) of the rear end of the curved shape, that is, the place where the distance from the tip of the shoe is the longest. Say that. The rear end of the heel refers to the rearmost part of the part of the heel that touches the ground when wearing the shoes, that is, the farthest part from the tip of the shoe. Say.

Although not particularly defined in the present invention, it is preferable that the rear end of the heel is a straight line in the width direction of the shoe sole because it serves as a fulcrum for the seesaw operation.
According to the piano playing shoe of the present invention, the heel is disposed so as to be shifted from the heel position of the sole to the toe position side, and the shoe can perform a seesaw operation in the vertical direction with the rear end of the heel as a fulcrum. It is like that.

  Moreover, in the present invention, since the heel is arranged so as to be shifted from the heel position of the shoe sole toward the toe position so that the A / D ratio is 11.9% or more, the piano player can Even if you are not conscious of how much force is applied to the heel, just by gently pushing the heel of the foot downward, the shoe performs a seesaw smoothly with the rear end of the heel as a fulcrum, and the toe of the shoe rises. Therefore, it is possible to perform the operation easily even when performing an operation such as a step change that makes heavy use of the leg muscles. For this reason, the piano player does not lack concentration on the piano performance by the seesaw operation of the shoes.

  Incidentally, when the A / D% ratio is less than 11.9%, the smoothness of the seesaw operation is deteriorated, and the load on the leg muscles is increased. Therefore, particularly in the case of beginners and children, there is a possibility that the concentration of focus on the piano performance may be lacking due to the seesaw operation of the shoes.

  In addition, the seesaw operation raises the toes to the inclination angle at which the rear end of the shoe sole reaches the floor, and the shoe can be supported by the rear end of the heel and the rear end of the shoe sole, thus stabilizing the inclined state. be able to. Therefore, it is possible to stably maintain an inclined state where the toe portion of the shoe is raised, that is, a standby state for stepping on the pedal.

  Further, when the piano player steps on the pedal, the shoe performs a seesaw operation with the rear end of the heel as a fulcrum by simply pressing the toe of the foot downward, and the toe of the shoe is lowered at a stretch. In addition, if the reverse seesaw operation is performed to return the pedal to the original position, the toe of the shoe goes up all at once. As a result, the pedal can be stepped down to the bottom instantly, and when the pedal is raised, the pedal can be returned to the original position in an instant. Thereby, even if it is a beginner or a child, this invention can perform an exact pedal operation stably easily, without overworking a leg muscle.

  The shoe for playing the piano according to the present invention is such that when the rear end of the shoe sole reaches the floor by the seesaw operation, the toe position is lifted to the pedal height position of the piano from the rear end of the shoe sole. It is preferable that the shift distance to the rear end of the heel and the height of the heel are set. This is because the pedal operation can be further stabilized.

  In the shoe for piano performance of the present invention, it is preferable that the height of the heel is 18 to 22 mm and the upper limit of the A / D% ratio is 17.9%.

  By setting the A / D% ratio to 11.9% or more as described above, it is possible to perform a smooth seesaw operation of the shoe. For example, the shoe size is short and the heel height is small like a child shoe. If it is low, there is a possibility that the height of the auxiliary pedal of the piano pedal or auxiliary pedal device may not be reached unless the inclination angle of the shoes is steeply inclined.

  In this case, as in the aspect of the present invention, the height of the heel may be 18 to 22 mm and the upper limit of the A / D% ratio may be 19%. In this way, if the height of the heel is set to 18 to 22 mm, even when the shoe size is short like a child shoe, when the shoe is operated as a seesaw, the inclination angle of the shoe is not steeply inclined. However, it becomes easy to reach the height of the auxiliary pedal of the piano pedal or auxiliary pedal device.

  Here, even if the height of the heel is 18 to 22 mm, if the A / D% ratio exceeds 17.9% and is too large, it may not be possible to secure a sufficient inclination angle of the shoes when the pedal is depressed. In addition, since it may be difficult to walk, it is preferable that the A / D ratio does not exceed 17.9%. However, these are small drawbacks compared to the merit of enabling seesaw operation, and even if the A / D% ratio exceeds 17.9%, compared to conventional shoes. For piano players, the benefits are much greater.

  In the piano performance shoe of the present invention, it is preferable that at least the width of the rear end of the heel is equal to or larger than the width of the sole at the position corresponding to the rear end of the heel.

  By making the width of at least the rear end of the heel equal to or greater than the width of the shoe sole at the position corresponding to the rear end of the heel, the shoe can be prevented from falling laterally during the seesaw operation. In addition, although the upper limit of the width | variety of the rear end of a heel was not provided, it should just determine from a viewpoint on a design, for example, it is preferable to make the upper limit about 10 mm of protrusion widths from the width | variety of a shoe sole. Here, the width of at least the rear end of the heel means that all the heel widths in the heel length direction need not be larger than the shoe sole width.

  In the piano performance shoe of the present invention, it is preferable that the heel is attached to the shoe sole via an adjustment mechanism that adjusts the displacement of the heel. Thereby, the inclination angle of the shoe when the seesaw operation is performed can be arbitrarily adjusted. Therefore, it is possible to cope with the case where the height from the floor to the pedal varies depending on the type of piano.

  The piano performance shoe according to the present invention is formed such that the rear end side of the heel has a curved shape that protrudes outward from the rear end of the heel toward the rear end of the shoe sole. Of these, the curved portion formed in the curved shape is preferably formed of a flexible member.

  As a result, the curved portion in contact with the floor is elastically deformed according to the inclination angle of the shoe, resulting in a flat state. Therefore, the shoe can be stably held at the inclined angle regardless of the inclination angle of the shoe, so that the operability of the shoe is improved.

  According to the piano playing shoes of the present invention, the pedal operation intended by the person can be performed accurately and stably even for beginners and children.

It is the perspective view which showed the relationship between the player's shoes when a piano player performs a piano, and the pedal provided in the lower part of the piano. It is a side view of the shoes for the piano performance of the 1st Embodiment of this invention. It is a top view of the shoes for the piano performance of the 1st Embodiment of this invention. It is a side view which shows the modification of the shoes for the piano performance of the 1st Embodiment of this invention. It is a side view explaining the effect | action of the shoes for the piano performance of this invention. FIG. 4 is a side view of the piano performance shoe of the present invention in which the toe position is raised by a seesaw operation. It is the table | surface which tested the relationship between the deviation | shift distance from the rear end of a shoe sole to the rear end of a heel, and pedal operation. It is another table | surface figure which tested the relationship between the deviation | shift distance from the rear end of a shoe sole to the rear end of a heel, and pedal operation. It is another table which tested the relationship between the deviation | shift distance from the rear end of a shoe sole to the rear end of a heel, and pedal operation. It is another table which tested the relationship between the deviation | shift distance from the rear end of a shoe sole to the rear end of a heel, and pedal operation. It is a bottom view of the shoes for the piano performance of the 2nd Embodiment of this invention. It is a cross-sectional perspective view of the adjustment mechanism of the heel position of the 2nd Embodiment of this invention. It is a side view of the shoes for the piano performance of the 3rd Embodiment of this invention.

  A preferred embodiment of a piano playing shoe according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 illustrates the relationship between a player's shoes and a pedal provided at the bottom of the piano when the piano player plays the piano. In FIG. 1, only the feet of the piano player are shown, and the entire body is not shown.

  As shown in FIG. 1, the piano player adjusts the height of the chair 10, sits on the chair 10 so that the finger angle and body posture are correct with respect to the keyboard 14 of the piano 12, and the thumb of the right foot The shoe 16 is placed on the pedal 18 so that the inner part of the foot hits about one third of the pedal 18 from the base of the index finger, and a piano performance is performed.

  FIG. 1 is an example of a performer of a child whose feet do not reach the pedal 18, and is a case where the auxiliary pedal device 20 is used. Accordingly, the inner portion of the tip portion of the right foot is placed around one third of the auxiliary pedal 20A of the auxiliary pedal device 20.

[Shoes for piano performance according to the first embodiment of the present invention]
The shoe 16 for piano performance of the present invention is a shoe intended for conventional walking in such a piano performance so that even a beginner or a child can perform the pedal operation intended by the person accurately and stably. It has been devised to have a different configuration.

  FIG. 2 is a side view of the piano playing shoe 16 of the present invention, and a woman's shoe is shown as an example. The shoe 16 for playing the piano according to the present invention is composed of an upper 22 (also called upper) and a shoe sole 26 having a heel 24 to form a shoe body. The upper 22 is preferably designed so that almost all of the foot 28 is wrapped, and the toe portion 22A is preferably not long so as not to contact the piano body 12 when the pedal 18 or 20A of FIG. Further, when the opening area of the foot opening 22B is large, it is preferable to provide a shoe belt 30 for fixing the instep of the foot 28.

  Further, when the size of the shoe 16 (synonymous with the size of the shoe sole 26) is D and the deviation distance from the rear end 26A of the shoe sole 26 to the rear end 24A of the heel 24 is A, the% ratio of A / D is The heel 24 is disposed so as to be shifted toward the toe position b so as to be 11.9% or more, and a shoe with the rear end 24A of the heel 24 (strictly, the rear end 24A of the bottom of the heel 24) as a fulcrum. 16 is configured to perform a seesaw operation in the vertical direction.

  Thus, in the piano performance shoe 16 of the present invention, the heel 24 is closer to the toe position b than the heel position a of the shoe sole 26 so that the A / D ratio is 11.9% or more. Therefore, the piano player can lightly push the toe down or lighten the toe of the foot without having to be particularly conscious of the force applied to the toe and toe of the foot 28. The shoe 16 can be smoothly operated as a seesaw simply by raising it.

Accordingly, the piano player does not overuse the muscles of the legs by the seesaw operation of the shoes 16 and does not lack the concentration on the piano performance.
As described above, the shape of the rear end portion of the shoe sole 26 in the planar direction is usually formed in a curved shape. Therefore, the rear end 26 </ b> A of the shoe sole 26 here refers to the longest portion in the size direction of the shoe 16 among the rear end portions of the curved shape.

The rear end 24A of the heel 24 is preferably a straight line in the width direction of the shoe sole 26 because it serves as a fulcrum for the seesaw operation.
The heel position a of the shoe sole 26 refers to the position of the shoe sole 26 on which the center of gravity of the heel of the foot 28 rides when the performer puts on the shoes 16 and stands upright.

  Further, when the rear end 26A of the shoe sole 26 is brought to the floor 32 by the seesaw operation of the shoe 16, the shoe toe position b of the shoe 16 is lifted to the height position of the pedal 18 of the piano 12 or the auxiliary pedal 20A. It is preferable that the deviation distance A from the rear end 26A of the bottom 26 to the rear end 24A of the heel 24 and the height C of the heel 24 are set.

  By setting the A / D% ratio to 11.9% or more as described above, the smooth seesaw operation of the shoe 16 can be performed. For example, the size of the shoe 16 is short and the heel 24 is like a child shoe. If the height of the shoe 16 is low (usually about 10 mm), the shoe 16 may not reach the pedal 18 of the piano 12 or the auxiliary pedal 20A of the auxiliary pedal device unless the inclination angle of the shoe 16 by the seesaw operation is steeply inclined.

  The height of the auxiliary pedal 20A that is always provided at the venue for children's piano competitions is usually about 57 mm. If the height of the heel 24 is about 10 mm, the inclination angle of the shoes 16 becomes steep and the foot 28 is moved to the auxiliary pedal. It will be hard for children to put it on 20A.

  Therefore, in such a case, the height of the heel 24 of the shoe 16 is set to 18 to 22 mm, and the% ratio of A / D is set to 11.9% or more from the viewpoint of the smooth seesaw operation of the shoe 16. On the other hand, when the pedal 18 or the auxiliary pedal 20A is depressed, the upper limit is preferably set to 17.9% from the viewpoint of securing the inclination angle of the shoe 16. Further, the% ratio of A / D is particularly preferably 15.3% to 17.8%.

  That is, when the% ratio of A / D is less than 11.9%, that is, when the position of the heel 24 is too close to the rear end side of the shoe sole 26, the rear end 26A of the shoe sole 26 reaches the floor 32. The inclination angle of the shoe 16 becomes too steep and unstable. If the A / D ratio exceeds 17.9%, that is, if the position of the heel 24 is too close to the distal end side of the shoe sole 26, the rear end 26A of the shoe sole 26 is immediately brought into contact with the floor during the seesaw operation. 32, it is difficult to lift up to a position where the toe position b is high. In particular, when the size of the shoe is short like a child shoe, it is difficult to lift the toe position b to a high position.

  Therefore, as in the piano performance shoe 16 of the present invention, the inclination angle of the shoe 16 mounted on the auxiliary pedal 20A can be made gentle by increasing the height of the heel 24 to 18 to 22 mm. Thereby, since it becomes easy to step on the auxiliary pedal 20A, the pedal operation can be further stabilized. Moreover, if the height of the heel 24 is in the range of 18 to 22 mm, it is not difficult to walk even when walking.

  However, the above-mentioned drawbacks are small compared with the merit that enables seesaw operation, and even with the above-mentioned drawbacks, the pedal operation of the piano can be performed better than the conventional shoes. For example, even if the rear end 26A of the shoe sole 26 immediately reaches the floor 32 during the seesaw operation, the toe is lifted with the rear end 26A as a fulcrum, which is the same as the conventional shoe. . Further, the difficulty in walking due to the high heel height is the same as that in conventional shoes, and therefore, it is not inferior to conventional shoes.

  Further, the upper limit value of the length F in the shoe size direction of the heel 24 shown in FIG. 2 is set to a length that does not hinder the depression of the pedal 18 or the auxiliary pedal 20A, and the lower limit value is set when walking. It is set to a length that is easy to walk.

  FIG. 3 illustrates a preferred embodiment of the width of the heel 24, and at least the width W1 of the rear end 24A of the heel 24 is preferably equal to or greater than the sole width W2 at the position corresponding to the heel rear end 24A. . FIG. 3 is a plan view of a shoe having a heel 24 wider than the width W2 of the shoe sole 26. As shown in FIG.

  Thus, by making the width W1 of at least the rear end 24A of the heel 24 equal to or greater than the shoe sole width W2, it is possible to prevent the shoe 16 from falling in the lateral direction during the seesaw operation. Although the upper limit of the width of the rear end 24A of the heel 24 is not provided, this may be determined from the viewpoint of design. For example, it is preferable that the protrusion width from the width W2 of the shoe sole 26 is about 10 mm. .

  Here, the width of at least the rear end 24A of the heel 24 means that it is not necessary that the entire width of the heel 24 in the length direction of the heel 24 (the shoe size direction) is larger than the sole width. . Accordingly, a trapezoidal heel bottom in which the width of the rear end 24A of the heel 24 is larger than the width of the shoe sole 26 and the front end 24B (see FIG. 2) of the heel 24 is smaller than the width of the shoe sole 26 may be used.

  FIG. 4 is a modification of the shoe 16 for piano performance in the embodiment of the present invention shown in FIG. In FIG. 2, the side of the rear end side of the heel 24 is perpendicular to the floor 32, but in FIG. 4, the side of the rear end side of the heel 24 is inclined toward the rear end 26A side of the shoe sole 26. 24C. The tapered surface 24C can be formed so as to coincide with a line connecting the rear end 24A of the heel 24 and the rear end 26A of the shoe sole 26, but is not limited to this, and the tapered surface 24C The tapered surface 24C can be formed so that the toes are at a desired height when in contact with the floor. Thereby, when the shoe 16 is inclined so as to raise the toe position b for pedal operation, the tapered surface 24C having an area comes into surface contact with the floor 32, so that the foot can be stabilized in that state. .

  Therefore, the inclined state of the shoe 16 can be maintained more stably than the line contact when the side of the heel 24 in FIG. 2 is vertical. In FIG. 4, the tapered surface 24 </ b> C is bent in the middle of the heel tip, but may extend to the rear end 26 </ b> A of the shoe sole 26.

  According to the piano performance shoe 16 of the present invention configured as described above, as shown in FIG. 5, the heel 24 is connected to the shoe sole 26 so that the A / D ratio is 11.9% or more. Since the piano player is arranged so as to deviate from the heel position toward the toe position, the piano player can move the heel position a of the foot 28 downward without being particularly aware of the force applied to the heel of the foot 28. The shoe 16 can smoothly perform a seesaw operation with the rear end 24 </ b> A of the heel 24 as a fulcrum simply by pressing lightly (in the direction of the arrow X).

  As a result, the toe position b of the shoe 16 is lifted to the height position of the pedal 18 or the auxiliary pedal 20A. As a result, as shown in FIG. 6, the inner part of the foot can be stably placed around one third of the pedal 18 or the auxiliary pedal 20 </ b> A from the base of the thumb and index finger of the foot 28. Therefore, the piano player does not overuse the muscles of the legs by the seesaw operation of the shoes 16 and does not lack the concentration on the piano performance.

  By the way, when the A / D% ratio is less than 11.9%, the seesaw operation becomes less smooth, so for beginners and children, the shoe muscle operation of the shoes 16 puts a strain on the leg muscles. There is also a risk of lack of concentration on piano performance. Also, if the smoothness of the seesaw operation is deteriorated, an unnatural force is applied to the shoe, so that the position of the shoe 16 may be shifted. In other words, the A / D ratio of 11.9% has a critical significance in the smooth seesaw operation of the shoe 16.

  Further, by the seesaw operation, the toe position b rises to an inclination angle at which the rear end 26A of the shoe sole 26 reaches the floor 32, and the shoe 16 has a rear end 24A of the heel 24 and a rear end 26A of the shoe sole 26 (in the case of FIG. 2). Or the taper surface 24C (in the case of FIG. 4), the inclined state is stabilized. Therefore, the inclined state where the toe position b of the shoe 16 is raised, that is, the standby state for stepping on the pedal 18 or the auxiliary pedal 20A can be stably maintained.

  Further, when the piano player steps on the pedal 18 or the auxiliary pedal 20A, the toe position a of the foot 28 is lowered downward from the state of FIG. 6 without specially being aware of the degree of force applied to the toe of the foot 28. The shoe 16 can smoothly perform a seesaw operation with the rear end 24 </ b> A of the heel 24 as a fulcrum simply by pressing lightly. As a result, the toe position b of the shoe 16 is lowered at a stretch. Further, in order to return the pedal 18 or the auxiliary pedal 20A to the original position, if the reverse seesaw operation is performed, the toe position b of the shoe 16 rises at a stretch.

  Thereby, it becomes possible to step on the pedal 18 or the auxiliary pedal 20A to the bottom in an instant, and when raising the pedal 18 or the auxiliary pedal 20A, the pedal 18 or the auxiliary pedal 20A can be returned to the original position in an instant.

  Further, since the seesaw operation of the shoe 16 can be performed smoothly, the movement of the foot when the pedal 18 or the auxiliary pedal 20A is depressed and the movement of the foot when the pedal 18 or the auxiliary pedal 20A is returned to the original position are easily performed. be able to. Thereby, even if it is a beginner or a child, it becomes easy to stabilize a body when depressing the pedal 18 or the auxiliary pedal 20A, and the position of the buttocks of the shoes 16 is not shifted. Furthermore, the heel portion of the shoe 16 is not separated from the floor 32 in an attempt to quickly step on the bottom of the pedal 18 or the auxiliary pedal 20A.

  7 to 10 show the arrangement position (% ratio of A / D) of the heel 24 with respect to the shoe sole 26 and the pedal operation using the piano playing shoe 16 of the present invention shown in FIG. It is a table | surface which shows the result of having tested the relationship with ease.

The table in FIG. 7 is for a girl M whose shoe 16 is 21 cm in size, and the meanings of symbols A, B, C, D, and E in the table are as follows.
A: Deviation distance from the rear end 26A of the shoe sole 26 to the rear end 24A of the heel 24 B: Horizontal distance from the rear end 24A of the heel 24 to the bending point 24D of the tapered surface 24C C: Height of the heel 24 D ... Shoe size (the total length of the shoe)
E: Vertical distance from the upper surface of the heel 24 to the bending point 24D of the tapered surface 24C

  Note that the numerical values of symbols B, C, D, and E were constant values as can be seen from the table of FIG. 7, and the numerical value of symbol A was changed between 0 mm and 50 mm at intervals of 2 mm. At this time, the height C of the heel 24 is 20 mm. In addition, the “shoe size” in the table of FIG. 7 is a size displayed on the shoe, and the symbol D is a value that the person who performed the test actually measured the length of the shoe sole 26 with a ruler.

Then, it was investigated when the% ratio of A / D was able to stably perform a good pedal operation.
In the “pedal operation” in the table of FIG. 7, “impossible” means ease of pedal operation and stability, and at least a part of all steps of the pedal operation is not improved compared to conventional shoes. In other words, “possible” means that some improvements were observed in the entire pedal operation process. “Good” means that the pedal is easy to operate in all steps of the pedal operation, and clearly there is an improvement. “Excellent” means that the pedal is very easy to operate in all steps of the pedal operation. It means that it has been improved. Here, the whole process of pedal operation refers to an operation from lifting a toe of a shoe by a seesaw operation to depressing the pedal.

  As a result, as can be seen from the “pedal operation” column in FIG. 7, the A / D% ratio is “impossible” in the range of 0% to 3.7%, but 4.7% to 8.4%. It became "OK" in the area. Moreover, it becomes "good" in the region where the% ratio of A / D is from 9.3% to 13.0%, and becomes "good" in the region of 14.0% to 18.6%, and from 19.5% to It became “good” again in the region of 23.3%.

The table in FIG. 8 is for a girl N whose shoes 16 are 22 cm in size, and the way of viewing the table is the same as in FIG.
As a result, as can be seen from the “pedal operation” column in FIG. 8, the A / D% ratio is “impossible” in the range of 0% to 9.7%, but 10.6% to 11.5%. It became "OK" in the area. In addition, “good” was obtained when the A / D% ratio was in the range of 12.4% to 15.0%, and even better “excellent” was obtained in the region of 15.9% to 16.8%. Moreover, it became “good” again in the region of 17.7% to 19.5%, and “impossible” in the region of 20.4% to 22.1%.

The table of FIG. 9 is a case of an adult female P whose shoe 16 size is 23 cm, and the way of viewing the table is the same as FIG.
As a result, as can be seen from the “pedal operation” column in FIG. 9, the A / D% ratio is “impossible” in the range of 0% to 11.0%, but 11.9% to 14.4%. It became "OK" in the area. Further, the A / D% ratio was “good” at 15.3%, and the “A” was better in the region of 16.1% to 16.9%. Furthermore, it became “good” again at 17.8%, “possible” in the region of 18.6% to 20.3%, and “impossible” at 21.2%.

  The table of FIG. 10 summarizes the tests conducted by four girls, R and T, whose shoes 16 are 24 cm in size, and adult women Q and S whose shoes 16 are 24 cm in size. The way of reading the table is the same as in FIG.

  As a result, in the case of an adult female Q, as can be seen from the “pedal operation” column, the A / D% ratio is “impossible” in the range of 0% to 7.3%, but 8.1% It was “OK” in the region of ˜12.2%. Moreover, it became "good" in the area | region whose% ratio of A / D was 13.0%-15.4%, and became much "excellent" in the area | region of 16.3%-17.9%. Furthermore, it became “good” again at 18.7%, “possible” at 19.5%, and “impossible” at 20.3%.

  In the case of girl R, as can be seen from the “pedal operation” column, the A / D% ratio is “impossible” in the range of 0% to 7.3%, but 8.1% to 12.2. It became “OK” in the 2% area. Moreover, it became "good" in the area | region whose% ratio of A / D is 13.0%-16.3%, and became much "excellent" in the area | region of 17.1%-17.9%. Furthermore, it became “impossible” in the region of 18.7% to 20.3%.

  In the case of an adult female S, as can be seen from the “pedal operation” column, the percentage of A / D is “impossible” in the range of 0% to 8.1%, but it is 8.9%. “Yes”. Moreover, it became "good" in the area | region where the% ratio of A / D was 9.8%-15.4%, and it became further "good" in 16.3%. Furthermore, it was “good” again at 17.1% to 18.7%, and “good” at 19.5% to 20.3%.

  In the case of girl T, as can be seen from the “pedal operation” column, the A / D% ratio is “impossible” in the range of 0% to 7.3%, but 8.1% to 11. It became “OK” in the 4% area. Moreover, it became "good" in the area | region whose% ratio of A / D is 12.2%-15.4%, and became much "excellent" in the area | region of 16.3%-17.9%. Furthermore, it became “good” at 18.7%, and “good” at 19.5% to 20.3%.

  As can be seen from the results in the tables of FIGS. 7 to 10 above, although there are individual differences among piano players, the A / D percentage is 11.9% to 17.9%. The shoes 16 for playing the piano according to the present invention are easier to operate the pedal than the shoes used in the conventional piano playing, resulting in an improvement.

Further, when the A / D% ratio was 15.3% to 17.8%, very good results of “good” to “excellent” were obtained.
In the tables of FIGS. 7 to 10, only the test results were shown with the shoe sizes of four levels of 21, 22, 23, and 24 cm, but similar results were obtained in the case of 25 cm and 26 cm.

  Therefore, it is preferable that the A / D% ratio is 11.9% or more and 17.9% or less as the degree to which the heel 24 is displaced from the heel position of the shoe sole 26 toward the toe position. It is particularly preferable that the content is not less than 3% and not more than 17.8%.

[Shoes for piano performance according to the second embodiment of the present invention]
The piano performance shoe 16 according to the second embodiment of the present invention is configured such that the heel is attached to the sole through an adjusting mechanism 34 that adjusts the displacement of the heel 24.

  FIG. 11 is a view of the shoe 16 as seen from the back surface (the surface in contact with the floor) of the shoe sole 26, and FIG. 12 is a cross-sectional perspective view of the adjustment mechanism 34. 12A and 12B differ only in the viewing angle. The same members as those in the first embodiment will be described with the same reference numerals.

  As shown in FIGS. 11 and 12, an adjustment mechanism 34 for adjusting the position of the heel 24 in the size direction of the shoe 16 is provided on the back surface of the shoe sole 26, and the heel 24 is slidable on the adjustment mechanism 34. Supported by

  As shown in FIG. 12, the adjustment mechanism 34 includes a rack plate 36 having a shape in which a cross section in the width direction of the shoe 16 protrudes outward at both concave ends, and a size direction of the shoe 16 (the tip of the shoe sole 26). To the rear end direction) and a concavo-convex plate 40 in which continuous concavo-convex is formed.

  The heel 24 is provided with a stopper 50 that meshes with the concave portion of the concavo-convex plate 40 by an elastic force in a hollow portion at the center thereof. The stopper 50 is hooked with a toothed portion 50A that bites into the concave portion of the concavo-convex plate 40, an arm 50B that presses the toothed portion 50A against the concavo-convex plate 40 by its elastic force, and a toe, a flat-blade screwdriver, a coin or the like. The hook portion 50 </ b> C for separating the engagement portion 50 </ b> A from the concave portion of the concavo-convex plate 40 by lifting it upward in the drawing view.

  The heel 24 is formed with a hole that fits with the rack plate 36, and can slide in the size direction of the shoe 16 by fitting with the rack plate 36. Usually, since the meshing portion 50A meshes with the concave portion of the concavo-convex plate 40 by the elastic force of the arm 50B, the heel 24 does not slide. Thereby, it is possible to prevent the heel 24 from sliding freely during performance and walking.

  Further, by hooking the hook portion 50C with a nail, a flat-blade screwdriver, a coin or the like and pulling it away from the shoe sole 26, the toothed portion 50A is separated from the concave portion of the concavo-convex plate 40, and the heel 24 is moved in the size direction of the shoe 16. The position of the heel 24 can be freely adjusted by sliding freely and engaging the engagement portion 50A with the recess of the uneven plate 40 at a desired position. This makes it possible to adjust the position of the heel 24 in accordance with the height of the piano pedal and the preference of the piano player's pedal operation.

  Here, the upper surface of the stopper 50 in the drawing (hereinafter, simply referred to as the upper surface of the stopper 50) is on the same plane as the bottom surface of the heel 24 (the upper surface in the drawing). It is preferable that there is a gap enough for a minus driver or coins to enter. If the upper surface of the stopper 50 protrudes from the bottom surface of the heel 24, the hook 50 </ b> C may be pulled by being hooked on the convex portion of the road surface during walking, and the heel 24 may slide. Further, if the upper surface of the stopper 50 is positioned closer to the shoe sole 26 than the bottom surface of the heel 24, it is difficult to slide the heel 24 by pulling the hook portion.

  Note that the adjustment mechanism 34 and the stopper 50 are not limited to the above-described configuration, and may be any configuration as long as the same operation and effect are produced.

  [Shoes for piano performance according to the third embodiment of the present invention]

FIG. 13 is a side view of a piano playing shoe according to the third embodiment of the present invention.
Note that members similar to those of the shoe of the first embodiment are described with the same reference numerals.

  The basic configuration of the piano playing shoe of the third embodiment of the present invention is the same as that of the first embodiment, but the surface 24C (tapered surface in FIG. 4) on the rear end side of the heel 24 is heeled. 24 from the rear end 24A to the rear end 26A of the shoe sole 26, and is formed in a curved shape that protrudes outward, and at least the curved portion 24E (the portion indicated by the dots in FIG. 13) of the heel 24 is made of a flexible member. It differs in the point formed.

  Here, the flexible member refers to a degree of flexibility that causes plastic deformation by the weight of the foot when the piano player is sitting on the chair 10 and raises the toe portion b, for example, soft rubber or the like. Can be used.

  Accordingly, when the shoe 16 is operated as a seesaw so as to step on the pedal 18 or the auxiliary pedal 20A and the toe portion b is inclined so as to be raised, the curved portion 24E supports the shoe 16. In this case, since the curved portion 24E is formed of a flexible member, the curved portion 24E in contact with the floor 32 is elastically deformed and becomes flat according to the inclination angle of the shoe 16. Therefore, regardless of the inclination angle of the shoe 16 when the seesaw operation is performed, the shoe 16 can be stably held at the inclined angle, so that the operability of the shoe 16 is improved.

  DESCRIPTION OF SYMBOLS 10 ... Chair, 12 ... Piano, 14 ... Keyboard, 16 ... Shoes, 18 ... Pedal, 20 ... Auxiliary pedal device, 20A ... Auxiliary pedal, 22 ... Upper, 22A ... Toe part, 22B ... Mouth, 24 ... Heel, 24A ... rear end of heel, 24B ... front end of heel, 24C ... tapered surface, 24D ... bending point, 24E ... curved portion, 26 ... shoe sole, 26A ... rear end of shoe sole, 28 ... foot, 30 ... shoe belt 32 ... Floor, 34 ... Adjustment mechanism, 36 ... Rack plate, 40 ... Uneven plate, a ... Hail position, b ... Toe position, 50 ... Stopper, 50A ... Gearing part, 50B ... Arm, 50C ... Hook part

Claims (6)

A shoe for piano performance in which a shoe main body is composed of an upper and a shoe sole with a heel,
When the shoe size is D, and the deviation distance from the rear end of the shoe sole to the rear end of the heel is A, the heel has a ratio of A / D of 11.9% or more. A piano performance characterized in that the shoe is arranged to be shifted to the toe position side from the heel position of the shoe sole, and the shoe can perform a seesaw operation in the vertical direction with the rear end of the heel as a fulcrum. Shoes. The piano playing shoes are:
A deviation distance from the rear end of the shoe sole to the rear end of the heel so that the toe position is lifted to the pedal height position of the piano when the rear end of the shoe sole reaches the floor by the seesaw operation; The shoe for piano performance according to claim 1, wherein a height of the heel is set. The height of the heel is 18-22 mm, and the upper limit of the% ratio of A / D is 17
. The piano performance shoe according to claim 1 or 2, which is 9%. The shoe for piano performance according to any one of claims 1 to 3, wherein a width of at least a rear end of the heel is equal to or greater than a shoe sole width at a position corresponding to the rear end of the heel. The shoe for piano performance according to any one of claims 1 to 4, wherein the heel is attached to the shoe sole via an adjustment mechanism that adjusts the displacement of the heel. In the non-inclined state of the shoe, the surface on the rear side from the ground contact surface of the heel is formed in a curved shape that protrudes outward from the rear end side of the contact surface of the heel toward the rear end side of the shoe sole. The piano performance shoe according to claim 1, wherein a curved portion of the heel formed in the curved shape is formed of a flexible member.

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