JP2007236874A - Chair for playing instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chair for playing an instrument, which allows a person playing the instrument in a sitting posture to achieve a balance while freely moving the head, the trunk and the four limbs, often execute a delicate, precise and quick movement by using unbalance and safely concentrate in a performance with ease. <P>SOLUTION: A buttocks mount part of this chair for playing the instrument is defined to a part near the ischium, a narrow-width part is provided at the crotch, a mechanism turning a seat part from side to side is provided, and legs of the chair is provided in lower parts near a floor, so that a musical performer straddles and sits on the chair and plays the instrument while freely moving the head, the trunk and the four limbs. A guide face extending obliquely upward provided in the back part of the seat face and a backrest provided in the back of the lumbar vertebrae are functioned as supporters, just like a hind bow of a saddle for horse riding, for returning the buttocks and the lumbar vertebrae of the musical performer moving and changing endlessly onto the ischium and quickly attaining the balance, so that the musical performer can delicately and precisely play the instrument in a quick movement. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a musical instrument playing chair.

The chair for playing musical instruments is a chair that the performer moves by moving the head, torso, and quadrilateral on the scapula. The chair that plays the piano and drums using the limbs is natural, but the upper body such as oboe The player who uses can move the upper body freely in conjunction with the free movement of the legs. In response to these requirements, a conventional keyboard instrument playing chair represented by piano or organ 60 shown in FIG. 10 is a chair having a seating surface on which a flat buttocks and a thigh are placed. The chair for playing a stringed instrument having four legs provided with a mechanism for adjusting the height of the seating surface at the four corners, the two legs standing downward from the frontmost edge of the seating surface. (For example, see Patent Document 1)
In addition, there is a musical instrument playing chair provided with a high back on the back of the seat, which is leaned to the upper part of the back.

  Conventional drum performance chair for performing a performance by arranging a plurality of percussion instruments around the performer using both hands and feet 70 in FIG. 11 is a saddle type chair having a tapered seat plate (71). There is a recess (72) with a gentle slope on which the thigh is placed, and there is a protrusion (73) at the rear of the seat plate that enhances stability when sitting. (For example, see Patent Document 2)

The conventional keyboard instrument playing chair and drum playing chair have a thigh-bearing surface and part, a tall backrest, two legs standing perpendicular to the front edge of the seating surface, etc. It is a structure that prevents free movement, and has a problem as a musical instrument playing chair.
JP 2004-121463 A JP 2002-328664 A

  The present invention is intended to solve the problem of such a conventional instrument playing chair, and a person who plays an instrument in a sitting position can freely move his head, torso, and four legs to achieve balance. The goal is to achieve a musical instrument chair that can be used with unbalance to make delicate, accurate and quick movements, and to concentrate on performance safely and securely.

Means to solve the problem

  And, as a means for achieving the above-mentioned object, the present invention has a shape of the seating surface of the musical instrument playing chair having a seating part above the main leg, and the back of the player's seat bone in contact with the seating surface, Provided with a buttocks mounting portion having an enlarged shape in a circular shape similar to the left and right, and provided in the forward direction located between the mounting portion between the crotch of the musical instrument player, a narrow portion connecting the tip arc edge and the curve, A fan-shaped guide surface extending obliquely upward from a portion of a gentle arc following the numeral 3 is provided behind the user's buttocks mounting portion.

  As a second means for achieving the object of the present invention, a backrest supporting the vicinity of the lumbar spine that rotates together with the seating portion is provided behind the lumbar spine of the musical instrument player.

  Then, as a third means for achieving the object of the present invention, there are four split legs that extend in four directions near the root of the main leg, and extend from the base point of the main leg in four directions, and the tip of the leg lands. One of the legs is provided with a floor portion in a position below the arc edge at the tip of the seating surface, opposite to the legs, behind the main leg, and outside lower position of the backrest described in the second means A leg for landing is provided. Further, the other two split legs were provided with a landing part at a position 60 degrees diagonally rearward of the main leg and on the lower side outside the seating part.

  As a fourth means for achieving the object of the present invention, a mechanism for rotating both the seating portion and the backrest in the horizontal direction is provided. It was set as the structure regulated within this range.

The invention's effect

  As described above, the musical instrument performance chair according to the present invention is provided with the buttocks placement portion limited to the vicinity of the performer's scapula and rearward so that the performer can freely adjust the head, torso, and crotch. Can be coordinated. By providing the narrow part in front of the seat, the performer can sit on the chair and can perform safely and safely. In addition, the fan-shaped inclined surface that extends obliquely upward at the back of the buttocks mounting portion is a part that gives the player a function to return the buttocks of the player who moves by changing to a fixed position of the chair, and the player is in a large and fast movement, Get a sense of stability and play with confidence.

  The backrest of the present invention provided near the back of the lumbar spine of a musical instrument player is a backrest that supports the balance by quickly returning the lumbar spine of the person who plays the musical instrument to the seatbone quickly. The performer can perform delicate and accurate performances.

  The chair for musical instrument performance according to the present invention does not have a leg standing at the foremost edge of the seating surface, but has a single leg positioned near the floor from the rear and a seating portion provided below the arc edge at the front end of the seating surface. Thus, the performer can move the legs in a wide range from left to right. In addition, the other three legs are placed behind the center of gravity, and on the outside of the seating surface and backrest, so that the player can be stable in the sitting position, and can perform by moving the four legs with peace of mind. I can do it.

  In addition, the musical instrument performance chair of the present invention is provided with a mechanism in which both the seating portion and the backrest can be rotated in the horizontal direction, and is configured to restrict the range of rotation, so that the performer can rest in a posture across the seating portion. You can play with a wide range of movement left and right.

  As described above, the musical instrument performance chair of the present invention allows the person performing in the sitting position to relieve tension, freely move the head, torso, and four legs to coordinate and balance, and sometimes uses unbalance. With this movement, you can play the instrument safely and safely.

BEST MODE FOR CARRYING OUT THE INVENTION

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. FIG. 1 is a side view of a musical instrument performance chair according to an embodiment of the present invention. Reference numeral 10 denotes a musical instrument playing chair according to the present invention. The virtual diagram 100 is a musical instrument player sitting on the chair. The main structure of the musical instrument performance chair of the present invention will be described. 20 is a main leg having four split legs, 30 is a seating portion, 40 is a backrest provided behind the lumbar vertebra of the musical instrument player 100, and 50 is a main body of a rotating mechanism for the seating portion and the backrest.

  FIG. 3 is a top view of the musical instrument performance chair 10 of the present invention. 31 is a seating surface. P1 is a rotation center of the seating part for the performer 100 to sit across the seating part and move left and right. P2 is the player's sciatic virtual contact, and P3 is a virtual line behind the player's buttocks. The range limited to the virtual line P3 in the vicinity of the sciatic virtual contact P2 and the back of the buttocks is the buttocks placement portion. 34 provided in front of the seating surface is a narrow part for a player to perform with peace of mind, and has a guide function for turning left and right with the player straddling the posture, which will be described later. I have them together. Reference numeral 35 denotes a surface extending in a fan shape obliquely upward from a part of a gentle arc following the virtual line P3 behind the player's buttocks. Similar to the narrow portion 34, the guide surface is intended for the player to concentrate on the performance with peace of mind. is there. Since the guide surface 35 has the same function as the back bridge of the riding saddle, it is possible to quickly return the seat bone to the correct fixed position in the complicated movement of the performer. In the embodiment, the seating surface is horizontal from the narrow portion 34 to the tip arc edge 33, but the front can be raised as long as the movement between the crotch is not hindered. Further, 38 in the sectional view of the seating portion is a side surface of the seating portion, and 39 is a place where it intersects with the seating surface 31 and is rounded for the purpose of eliminating the discomfort of the corners.

  Reference numeral 40 in FIG. 1 denotes a backrest provided at the back of the lumbar spine of a person who performs with the instrument playing chair of the present invention. Like the narrow part 34 and the guide surface 35 described above, this is a functional backrest that responds to large movements of the upper body and quickly returns the lumbar vertebra to the seatbone to create a stable posture and move on to the next performance. . 6 and 40A are cushion materials built into the backrest 40, and 41 is a support made of a resilient material. 43 is a clamp. Reference numeral 42 denotes a guide for sliding the support 45 inward. The back 45 is moved back and forth by the guide 42 by the guide 42, adjusted to an appropriate rear position of the lumbar vertebra, and fixed by the clamp 43. Reference numeral 25 denotes a chair leg also serving as a rotation axis, and 20 denotes a main leg. The legs 25 that also serve as the rotation shaft slide on the inner diameter of the main legs 20. Although the seat surface is adjusted to an appropriate height and fixed by the clamp 26, the height adjustment may be performed by a known gas spring system.

  FIG. 7 is a side view of the leg of the chair 10 showing the embodiment of the present invention. The structure of the legs will be described with reference to FIGS. 21, 22, 23, and 24 are minute legs that extend in four directions starting from the vicinity of the base of the main leg 20 and have their tips landed. The minute leg 21 is a minute leg provided on the lower side inside the front arc edge of the seating surface so that the movement of the performer is not hindered. The minute leg 22 is a minute leg provided with a landing portion behind the backrest. The minute legs 22 and 24 are minute legs that are 60 degrees symmetrical to the left and right of the main leg 20 and have a landing portion on the outer lower side of the seating portion. In this embodiment, a split leg extending in all directions from the base of the main leg is provided to increase the stability of the chair. However, a conical leg may be used as the base of the main leg.

  FIG. 8 is a cross-sectional view of the rotation mechanism of the seating portion 30 of the chair 10 showing the embodiment of the present invention. FIG. 9 is a view taken along the line XX and shows a range that regulates the rotation range of the seating portion. Reference numeral 50 denotes a main body of the rotation mechanism. The main body 50 is fixed to the bottom plate 30 </ b> A of the seating portion with a bolt 53, and rotates between the rotating shaft 25 via a bearing 54. 9 shows the direction of the minute leg 21 provided in the front. Reference numeral 52 denotes a groove for determining a rotation range, which is provided between the left and right sides of 60 degrees along the rear outer diameter of the rotation main body 50 opposite to the arrow A. 51 is a pin for determining the rotation range, and is fixed to the position of the rotation shaft 25 corresponding to the center of the groove 52 for regulating the rotation range. The seating portion 30 is configured to rotate the range of 60 degrees to the left and right with the minute leg 21 as a base point.

  The side view of the chair for musical instrument performance which shows embodiment of this invention   The top view of the chair for musical instrument performance which shows embodiment of this invention   Top view of the seating part in FIG.   AA arrow sectional view in FIG.   BB arrow sectional view in FIG.   2 is a cross-sectional view of the backrest taken along the line CC in FIG.   The side view which shows the leg and rotation part of the chair for musical instrument performance which shows embodiment of this invention   Rotation mechanism sectional view in FIG.   XX view in FIG.   General perspective view of a conventional keyboard instrument playing chair   General perspective view of a conventional drum playing chair

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Musical instrument chair 20 Main leg 21, 22, 23, 24 Minute leg 25 Chair leg 26, 43 which also serves as a rotation axis Clamp 30 Seating part 31 Seating surface 32 Gutter placing part 33 Tip arc edge 34 Narrow part 35 Guide Surface 36 Front surface 37 Rear surface 38 Side surface 39 Intersection 30A between seat surface and side surface Seat bottom plate 40 Backrest 41 Support 42 Guide 40A Urethane cushion material 50 Rotating mechanism body 51 Pin 52 Groove 53 Bolt 54 Bearing 71 Seat plate 72 Concave 73 Convex P1 Rotation center P2 of seating part Virtual contact point P3 of sciatic imaginary line at the back of buttock 100

Claims (4)

  A musical instrument performance chair (10) having a seating portion (30) above the main leg (20), wherein the seating surface (31) is shaped like the seating surface (31) of the performer (100). ) Is provided rearward from the point (P2) in contact with the head (P2), and a heel part mounting part (32) having an enlarged shape similar to the left and right is provided, and the front part located between the crotch of the instrument player (100) is provided from the mounting part. , A narrow arc part (34) connected to the tip arc edge (33) and the curve, and a portion of the instrument player (100) that draws a gentle arc following the three-letter shape (P3) behind the buttocks placement part A musical instrument performance chair characterized in that it is formed on a fan-shaped guide surface (35) extending obliquely upward.   2. A musical instrument playing chair according to claim 1, further comprising a backrest (40) that rotates together with the seating part (30) behind the lumbar spine (102) of the musical instrument player (100).   Four split legs (21, 22, 23, 24) that extend in four directions starting from the base of the main leg (20) and have the tip of the leg landing are provided, and one of the split legs (21) The seat back (31) is provided with a floor portion in a position below the circular arc edge (33) at the tip of the seating surface (31), opposite the minute leg (21), behind the main leg (20), and the backrest according to claim 2. 40) A leg (22) for landing is provided at the outer lower position. Further, the other two split legs (23, 24) are diagonally rearward 60 degrees symmetrical to the main leg (20), and a landing part is provided at a position outside the seating part (30). The chair for musical instrument performance described in Claim 1 or 2.   A structure (51, 52) that includes a mechanism for horizontally rotating the seating portion (30) and the backrest (40), and restricts the rotation range within a range of 60 degrees to the left and right with respect to the split leg (21). The musical instrument performance chair according to claim 1, 2, or 3.

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