JP2020034718A - Keyframe front of keyboard instrument - Google Patents

Abstract

To provide a keyframe front of a keyboard instrument capable of tightly coupling keyframe front moldings for a long period and thus preventing gaps between keys of a keyboard from varying.SOLUTION: There is provided a keyframe front 11 of a keyboard instrument that is constituted extending to the right and left by coupling end parts of a plurality of keyframe front moldings 21, 21, made of synthetic resin and extending to the right and left, to each other, and has a plurality of front pins 14, engaging front end parts of the plurality keys stood, side by side, to the right and left. A coupling engagement projection part 26 in a predetermined plane shape is provided at an end part of one adjacent keyframe front molding 21 among the plurality of keyframe front moldings 21, and a coupling engagement recessed part 27 which is recessed to be fit with the plane shape of the coupling engagement projection part 26 and engages the coupling engagement projection part 26 relatively immovably to the right and left is provided at an end part of the other keyframe front molding 21.SELECTED DRAWING: Figure 2

Description

  The present invention is applied to a keyboard instrument such as an electronic piano, and relates to a reed front of a keyboard instrument that holds a front pin that is engaged with a front end of a key in an upright state.

  BACKGROUND ART Conventionally, as a front of a reed of this type of keyboard instrument, for example, one disclosed in Patent Document 1 already filed by the present applicant is known. The front portion of the reed is configured to extend in the left-right direction by connecting a plurality of pre-reed molded products made of synthetic resin. Each pre-reed molded product is composed of a horizontally long main body portion in which a plurality of front pins are erected at predetermined intervals in the left-right direction, and protruding from the left and right ends of the main body portion to form adjacent pre-reed molded products. It is composed of a left connection part and a right connection part for connection. These left and right connecting parts have substantially the same planar shape as each other, and the upper half of the left connecting part is cut out, while the lower half of the right connecting part is cut out. Also, two front and rear ends of the left and right connecting portions are formed with two screw holes that penetrate vertically, and the upper surface of the left connecting portion, whose upper half is cut off, A plurality of grooves extending in the left-right direction in parallel are formed.

  When connecting two adjacent pre-reed molded products, first, the right connecting portion of one pre-reed molded product and the left connecting portion of the other pre-reed molded product are vertically overlapped, and their front ends. And screw the rear end. Next, in the two pre-reed molded articles screwed, the adhesive is formed from a gap generated between the right end face of the main body part in the left pre-reed molded article and the left end face of the left connecting part in the right pre-reed molded article. Inject. The injected adhesive flows into each groove of the left connecting portion of the right pre-reed molded product. As described above, the molded products before the reed are connected in a state where the left and right connecting portions are joined together by a joint.

  In addition, the front of the reed formed by connecting a plurality of pre-reed molded products as described above is arranged along a front rail extending in the left-right direction of the metal keyboard chassis, and screws are attached to the front rail at a plurality of locations. It is fixed by being stopped.

Japanese Patent No. 5797074

  In the electronic piano having the reed front configured as described above, the front of the reed may thermally expand or contract due to a change in temperature of the installation environment or the like. To expand and contract. Generally, since the linear expansion coefficient of the synthetic resin constituting the pre-reed molded product is larger than that of the metal constituting the front rail, the front reed expands and contracts more than the front rail. In this case, a tensile force or a compressive force acts in the longitudinal direction on the connected parts at the ends of the pre-reed molded products connected to each other, and when these act repeatedly, the reeds connected to each other are formed. Adhesion between the connecting parts of the pre-formed product may come off.

  As described above, when the bonding between the connecting portions of the molded products before reed comes off, the expansion and contraction in the longitudinal direction of each molded product before reed is further increased. The distance between the front pins that are erected on the pre-molded product and are adjacent to each other is larger than that between the other front pins. Along with this, the gap between the keys engaged with those front pins is widened, so that the gap between the keys on the keyboard of the electronic piano varies.

  In addition, when bonding the joints of the molded products before the reed, the adhesive is injected into the gap between the main body of the molded product on the left side and the left joint of the molded product on the right side as described above. By doing so, the adhesive flows into each groove of the left connecting portion. However, it is difficult to insert the adhesive into each groove, and when the flow of the adhesive is insufficient, it may not be possible to sufficiently bond the connecting portions of the pre-reed molded products for a long period of time. Therefore, there is room for improvement before the conventional reed described above.

  The present invention has been made in order to solve the above-described problems, and it is possible to strongly connect molded products before reed for a long period of time, thereby reducing the variation in the gap between keys on a keyboard. It is an object of the present invention to provide a reed front of a keyboard instrument that can be prevented.

  In order to achieve the above object, the invention according to claim 1 is configured to extend in the left-right direction by connecting the ends of a plurality of pre-reed moldings made of synthetic resin and extending in the left-right direction to each other. The front reed of a keyboard instrument in which a plurality of front pins that respectively engage with front ends of a plurality of keys are arranged in a state of being arranged side by side in the left-right direction. At the end of the pre-reed molded product, there is provided a coupling engagement convex portion having a predetermined planar shape, protruding toward the other adjacent pre-reed molded product, and at the end of the other pre-reed molded product, A coupling engagement concave portion is provided which is formed in a concave shape that can be fitted to the planar shape of the coupling engagement convex portion, and engages with the coupling engaging convex portion in a state in which the coupling engagement convex portion cannot move in the left-right direction. It is characterized by being.

  According to this configuration, by connecting the ends of the plurality of pre-reed molded products made of synthetic resin and extending in the left-right direction to each other, the front of the reed which stands up in a state where the plurality of front pins are arranged in the left-right direction is provided. , And extend in the left-right direction. In addition, a coupling engagement convex portion having a predetermined planar shape is provided at an end of one adjacent pre-reed molded product among the plurality of pre-reed molded products, and is provided at an end of the other pre-reed molded product. Is provided with a coupling engagement concave portion that engages with the coupling engagement convex portion. The coupling engaging concave portion is formed in a concave shape that can be fitted to the planar shape of the coupling engaging convex portion, and is engaged with the coupling engaging convex portion so as to be relatively immovable in the left-right direction. I do. In this way, by engaging the connection engagement protrusion and the connection engagement recess so that they cannot be moved by fitting, the adjacent pre-reed molded products can be connected by their own mechanical connection. Therefore, even when the pre-reed molded products expand and contract due to, for example, thermal expansion and thermal contraction, it is possible to maintain strong connection between the ends of both pre-reed molded products. As described above, according to the present invention, the molded products before reed can be firmly connected to each other over a long period of time, and thereby it is possible to prevent variations in the gap between keys on the keyboard.

  According to a second aspect of the present invention, before the reed of the keyboard instrument according to the first aspect, the coupling engagement projection has a predetermined width in the front-rear direction and extends a predetermined length in the left-right direction; A second protrusion provided at a distal end of the first protrusion and protruding at least one of a front side and a rear side by a predetermined length.

  According to this configuration, the connection engagement projection having the first projection and the second projection is formed in an L-shape or a T-shape in plan view, and is fitted in the connection engagement recess. The engagement makes it possible to relatively easily and stably connect adjacent pre-reed molded articles relatively immovable in the left-right direction.

  According to a third aspect of the present invention, there is provided a fixing means for fixing the coupling engagement convex portion and the coupling engagement concave portion in a state in which the coupling engagement convex portion and the coupling engagement concave portion are vertically adhered to each other before the reed of the keyboard instrument according to the first or second aspect. It is characterized by the following.

  According to this configuration, in addition to the engagement between the connection engagement protrusion and the connection engagement recess, the connection connection protrusion and the connection engagement recess are fixed in a state in which the connection engagement protrusion and the connection engagement recess are closely contacted in the up-down direction. Adjacent pre-reed molded products can be connected even more firmly.

  According to a fourth aspect of the present invention, before the reed of the keyboard instrument according to the third aspect, the fixing means has an adhesive for vertically bonding the connection engagement protrusion and the connection engagement recess. It is characterized by.

  According to this configuration, by using the adhesive as the fixing means, the connection engagement convex portion and the connection engagement concave portion can be fixed in a state of being vertically bonded.

  According to a fifth aspect of the present invention, before the reed of the keyboard instrument according to the fourth aspect, one or more adhesive injection holes penetrating in a vertical direction are formed in one of the connection engaging projection and the connection engagement recess. And a plurality of grooves that are continuous with the adhesive injection hole and are radially arranged around the adhesive injection hole in a plane that is in contact with the other of the connection engagement protrusion and the connection engagement recess. Features.

  According to this configuration, one or more adhesive injection holes penetrating vertically are formed in one of the connection engagement protrusion and the connection engagement recess, and a plurality of grooves connected to the adhesive injection hole are radially formed. Is formed. When the connection engaging projection and the connection engaging recess are bonded by an adhesive, the two are fitted and overlapped with each other, and the adhesive is injected into the adhesive injection hole from the outside, so that the adhesive has a plurality of radial grooves. Flows to As a result, the adhesive can be stably supplied over a relatively wide area and in good balance between the overlapped connection engagement protrusion and the connection engagement recess. The engagement recess can be firmly bonded.

  According to a sixth aspect of the present invention, in the front of the reed of the keyboard instrument according to the fourth or fifth aspect, the fixing means fixes the coupling engagement convex portion and the coupling engagement concave portion with a screw so as to be vertically pressed. A screw is further provided.

  According to this configuration, the connection engagement protrusion and the connection engagement recess bonded to each other by the adhesive are screwed so as to be vertically pressed by the fixing screw. Can be more firmly bonded, and the state can be stably maintained for a long period of time.

  According to a seventh aspect of the present invention, before the reed of the keyboard instrument according to the sixth aspect, the connection engagement projection is formed in a convex shape projecting in a vertical direction, and a screw hole into which a fixing screw is screwed is formed inside. It is characterized in that it has a formed screw convex portion, and the coupling engagement concave portion has an insertion hole that penetrates in the vertical direction and into which the screw convex portion is inserted.

  According to this configuration, while the screw protrusion is provided in the connection engagement protrusion, the insertion hole is provided in the connection engagement recess, so that the connection protrusion is inserted into the insertion hole while the connection protrusion is inserted. By fitting the protrusions into the connection engagement recesses, the assembling work at the time of connecting the pre-reed molded products can be performed relatively easily. In addition to the fitting of the coupling engagement projection and the coupling engagement recess, the screw projection is inserted into the insertion hole, so that the molded products before the reed can not relatively move in the left-right direction. Thus, the connection can be made even stronger.

1A and 1B show a part of a keyboard device of an electronic piano to which a front side of a keyboard device according to an embodiment of the present invention is applied, wherein FIG. 1A is a perspective view and FIG. It is a perspective view which shows the front rail in which the front pin was erected and a part before reed, (a) shows the state in which the front reed was attached to the front rail, (b) shows the state which omitted the front rail. It is a perspective view which shows two molded articles before reed connected to each other, (a) is a state when both molded articles before reed before and after connection are viewed from obliquely above, and (b) is both reeds before and after coupling. This shows a state when the pre-formed product is viewed from obliquely below. It is a top view which shows two pre-reed molded articles mutually connected, (a) shows the state which connected both pre-reed molded articles, and (b) shows the state before connection of both pre-reed molded articles.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIGS. 1A and 1B show a part of a keyboard device of an electronic piano to which a reed front of a keyboard instrument according to an embodiment of the present invention is applied in a key released state. As shown in both figures, this keyboard device 1 has a large number of keys 2 (two white keys 2a and one black key 2b are shown in FIG. 1A) arranged in the left-right direction of the electronic piano. A keyboard chassis 3 for supporting the key 2, a hammer support 4 connected to the rear end of the keyboard chassis 3, and a number of hammers provided for each key 2 and rotating in conjunction with the pressed key 2 5 (one white key hammer 5a and one black key hammer 5b are shown in FIG. 1 (a)) and a plurality of hammer 5 provided for each hammer 5 to give a let-off feeling when the key 2 is pressed. It comprises a let-off component 6 (only one is shown in FIG. 1B), a key switch 7 for detecting key press information of the key 2, and the like.

  The keyboard chassis 3 includes three support rails 9 each including a front rail 9a, a middle rail 9b, and a rear rail 9c that extend in the left-right direction and are arranged at a predetermined distance from each other in the front-rear direction. And a reinforcing rib 10 are assembled in a cross-girder shape, and are fixed on a shelf (not shown). Each of the support rails 9 and the ribs 10 is formed of a metal plate formed into a predetermined shape by punching and bending by a press.

  To the lower surface of the front rail 9a and the upper surface of the middle rail 9b, a front reed 11 and a middle reed 12 are fixed, respectively. The front 11 and the middle 12 of the reed are thick plate-like members made of a synthetic resin, and extend in the left-right direction over the entire front rail 9a and the middle rail 9b. In the reed 12, a large number of balance pins 13 (two white key balance pins 13 a and one black key balance pin 13 a in FIG. 1A) are located in front and rear positions corresponding to the white key 2 a and the black key 2 b. 13b are shown standing vertically. Also, a large number of front pins 14 are erected in front of the reed 11 in a state of being arranged in the left-right direction.

  2A and 2B show a front rail 9a on which the front pins 14 are erected and a part of the front of the reed 11. FIG. 2A shows a state in which the front reed 11 is attached to the front rail 9a, and FIG. 9A shows a state in which 9a is omitted. As shown in FIG. 2A, the top plate 15 of the front rail 9a has a plurality of pin openings 15a having a diameter larger than the outer diameter of the front pins 14 at positions corresponding to the plurality of front pins 14, respectively. Are formed, and the front pins 14 protrude upward through the pin openings 15a. The two screws 16, 16 shown in FIG. 2 are for fixing the front part of the rib 10 (see FIG. 1B) of the keyboard chassis 3 to the lower surface of the top plate 15 of the front rail 9a. .

  The front reed 11 is configured by connecting a plurality of pre-reed molded products 21 extending in the left-right direction to each other in the left-right direction. FIGS. 3 and 4 show two pre-reed molded products 21, 21 which constitute a part of the reed front 11. Each pre-reed molded product 21 is made of a predetermined synthetic resin (for example, ABS resin or polystyrene), and has a main body 22 having a plurality of pin holes 22a and 22b for fixing the front pin 14, and a right end of the main body 22. The right and left connecting portions 23 and 24 are provided so as to protrude from the left and right end portions, respectively, and connect adjacent pre-reed molded products 21 to each other.

  At the front end of the main body 22, seven pin holes 22a are provided in the left and right direction for erecting a front pin 14a (see FIGS. 1 and 2) for the white key 2a with its lower end press-fitted. It is formed at predetermined intervals. On the other hand, at the rear end of the main body 22, five pin holes 22b are provided on the left and right sides for erecting a front pin 14b (see FIGS. 1 and 2) for the black key 2b in a manner similar to that of the white key 2b. They are formed at predetermined intervals in the direction. Each of the pre-reed molded products 21 shown in FIGS. 3 and 4 is configured to correspond to one octave.

  On the other hand, the right connecting portion 23 and the left connecting portion 24 are formed in a state where the lower half and the upper half are substantially cut out, respectively. Further, the right connecting portion 23 of the one pre-reed molded product 21 and the left connecting portion 24 of the other pre-reed molded product 21 cannot be relatively moved in the front-rear direction and the left-right direction while being vertically fitted to each other. It is configured to engage in a proper state.

  Specifically, the right connecting portion 23 is continuous with the right end portion of the main body portion 22 and has a width in the front-rear direction which is substantially the same as that of the base portion 25. The right connecting portion 23 projects rightward from the base portion 25, and has a horizontal T-shaped planar shape. And a connection engagement convex portion 26 formed in a shape. That is, the coupling engagement convex portion 26 has a width smaller than the width in the front-rear direction of the base portion 25 and a narrow width portion 26a (first convex portion) that projects rightward from the base portion 25 by a predetermined length. It is formed of a widened portion 26b (second convex portion), which is continuous with the narrow portion 26a and protrudes rightward by a predetermined length, and whose width in the front-rear direction is larger than that of the narrow portion 26a and smaller than that of the base 25. ing.

  In the base 25 of the right connecting portion 23, elongated holes 25a and 25b penetrating in the vertical direction and slightly extending in the horizontal direction are formed at the front end and the rear end, respectively. Further, as shown in FIG. 3 (b), at a predetermined position on the lower surface of the coupling engagement projection 26, a cylindrical screw projection 26c protruding downward by a predetermined length and having an internal thread formed on an inner peripheral surface. Is protruding.

  On the other hand, the left connecting portion 24 is continuous with the left end portion of the main body portion 22 and has substantially the same planar shape as the above-described base portion 25 and the connecting engagement convex portion 26 of the right connecting portion 23, and is one step lower by the thickness thereof. Has a coupling engagement recess 27 formed therein. More specifically, the coupling engagement concave portion 27 corresponds to the narrow width portion 26a and the widening portion 26b of the coupling engagement convex portion 26, respectively, and has the narrow width portion 27a and the widening width having substantially the same inside dimensions as their outer dimensions. A portion 27b is provided. An insertion hole 27c is formed in the center of the coupling engagement concave portion 27, penetrating in the up-down direction, and into which the screw convex portion 26c is inserted when the pre-reed molded products 21 are connected to each other. Further, long holes 28a and 28b penetrating in the up-down direction and slightly extending in the left-right direction are formed at the left front end portion and the rear end portion of the coupling engagement concave portion 27, respectively.

  In addition, the left connecting portion 24 is provided with a plurality of (four in the present embodiment) adhesive injection holes 29 for injecting an adhesive from the lower surface side to the upper surface side. Specifically, an adhesive injection hole 29 penetrating in the vertical direction is formed around the insertion hole 27c of the coupling engagement concave portion 27 around the insertion hole 27c. A plurality (eight in the present embodiment) of grooves 29a are formed on the upper surface of the coupling engagement concave portion 27, each centering on each of the adhesive injection holes 29 and extending radially in the radial direction.

  The pre-reed molded product 21 configured as described above forms the reed front 11 extending in the left-right direction by being connected as follows. First, in the two pre-reed molded products 21 to be connected, the coupling engagement convex portion 26 and the screw convex portion 26c of one pre-reed molded product 21 are connected to the coupling engagement concave portion 27 of the other pre-reed molded product 21. And into the insertion hole 27c from above. Next, the crimping screw 31 (fixing screw) is screwed into the screw protrusion 26c inserted into the insertion hole 27c (see FIG. 3B). Then, a predetermined adhesive is injected into each of the four adhesive injection holes 29. As a result, the adhesive injected into each of the adhesive injection holes 29 flows into each of the radial grooves 29a connected to the adhesive injection hole 29, and the connection engagement convex portion 26 of the one pre-reed molded product 21 and the other. The connection engaging recess 27 of the pre-reed molded product 21 is bonded.

  As described above, the reed front 11 formed by connecting the plurality of pre-reed molded products 21 is connected to the front side of the left and right connecting portions 23 and 24 of the two pre-reed molded products 21 and 21 connected to each other. The mounting screws 32a and 32b are respectively inserted from below into the long holes 25a and 28a and the rear long holes 25b and 28b, and screwed into the screw holes of the top plate 15 of the front rail 9a, thereby being fixed to the front rail 9a. .

  As described above in detail, according to the present embodiment, the right connecting portion 23 of one of the adjacent pre-reed molded products 21 of the plurality of pre-reed molded products 21 to be connected to each other has a horizontal T-shape. A coupling engagement convex portion 26 having a planar shape is provided, and a coupling engagement concave portion 27 that engages with the coupling engagement convex portion 26 is provided on the left coupling portion 24 of the other molded product 21 before the reed. . The coupling engagement concave portion 27 is formed in a concave shape that can be fitted up and down with respect to the planar shape of the coupling engagement convex portion 26, and is relatively left-right and front-rear with respect to the coupling engagement convex portion 26. Engages in a non-movable state. In this manner, by engaging the connection engagement protrusion 26 and the connection engagement recess 27 in a fitted state, the adjacent molded products 21 before reed can be connected by their own mechanical connection. Therefore, even when the pre-reed molded products 21 expand and contract due to, for example, thermal expansion and thermal contraction, it is possible to maintain strong connection between the ends of the pre-reed molded products 21 and 21. As described above, according to the present embodiment, the pre-reed molded products 21 can be firmly connected to each other for a long period of time, thereby preventing variations in the gap between the keys 2 in the keyboard device 1. be able to.

  Further, in addition to the engagement between the connection engagement protrusion 26 and the connection engagement recess 27, the connection connection protrusion 26 and the connection engagement recess 27 are fixed in a vertically bonded state using an adhesive. Therefore, the adjacent pre-reed molded products 21 can be connected more firmly. Further, the above-mentioned adhesive is injected through a plurality of adhesive injection holes 29 and flows into radial grooves 29 a connected to the respective adhesive injection holes 29. As a result, the adhesive can be stably supplied in a relatively wide range and with good overall balance between the overlapped connection engagement protrusion 26 and connection engagement recess 27. 26 and the connection engaging recess 27 can be firmly bonded.

  Further, the connection engaging projection 26 and the connection engagement concave portion 27 adhered to each other by the adhesive are screwed so as to be vertically pressed by the pressing screw 31, so that the connection engagement projection 26 and the connection engagement The recess 27 can be more firmly bonded, and the state can be stably maintained for a long period of time.

  Furthermore, while the screw protrusion 26c is provided in the connection engagement protrusion 26, the insertion hole 27c is provided in the connection engagement recess 27, so that the screw protrusion 26c is inserted into the insertion hole 27c. By fitting the connection engaging projections 26 to the connection engagement recesses 27, the assembling work at the time of connecting the pre-reed molded products 21, 21 can be performed relatively easily. Further, in addition to the fitting of the coupling engagement convex portion 26 and the coupling engagement concave portion 27, by inserting the screw convex portion 26c into the insertion hole 27c, the molded products 21, 21 before the reed are relatively positioned. The connection can be made even stronger in a state where the connection cannot be made in the left-right direction and the front-back direction.

  Note that the present invention can be implemented in various modes without being limited to the above-described embodiment. In the embodiment, the planar shape of the connection engaging convex portion 26 of the pre-reed molded product 21 is formed in a horizontal T-shape. For example, the widened portion 26b at the tip of the narrow portion 26a is provided only on one of the front and rear sides. It is also possible to configure so as to protrude, and to form the planar shape of the coupling engagement projection 26 into an L-shape. As for the planar shape of the connection engaging projection, it is only necessary that the adjacent pre-reed molded products 21 are connected so as to be relatively immovable in the left-right direction, and various shapes can be adopted. is there. Further, the configuration of the details of the pre-reed 11 and the pre-reed molded product 21 shown in the embodiment are merely examples, and can be appropriately changed within the scope of the present invention.

REFERENCE SIGNS LIST 1 keyboard device 2 key 11 front reed 14 front pin 15 top plate 15 a of front rail 15 opening for pin 21 pre-reed molded product 22 main body 23 right connecting portion 24 left connecting portion 25 right connecting portion base 26 connecting engagement convex portion 26 a Narrow part (first convex part) of coupling engaging convex part
26b Widened portion of connection engagement projection (second projection)
26c Screw projection 27 of the connection engagement projection Connection engagement recess 27a Narrow width portion 27b of the connection engagement depression Wide portion 27c of the connection engagement recess Insertion hole 29 of the connection engagement recess 29 Adhesive injection hole 29a Groove 31 For crimping Screw (fixing screw)

Claims (7)

A plurality of front pins formed of a synthetic resin and configured to extend in the left-right direction by connecting the ends of a plurality of pre-reed molded products extending in the left-right direction to each other, and engaging with the front ends of the plurality of keys. In front of a keyboard instrument reed standing side by side in the left and right direction,
At the end of one adjacent pre-reed molded product among the plurality of pre-reed molded products, there is provided a coupling engagement convex portion having a predetermined planar shape, protruding toward the other adjacent pre-reed molded product. ,
At the end of the other molded product before the reed, a concave shape is formed that can be fitted to the planar shape of the connection engagement protrusion, and the end moves to the left and right relative to the connection engagement protrusion. A reed for a keyboard instrument, comprising a coupling engagement recess that engages in an impossible state. The connection engagement convex portion,
A first projection having a predetermined width in the front-rear direction and extending a predetermined length in the left-right direction;
A second projection provided at a tip of the first projection and projecting at least one of forward and rearward by a predetermined length;
The front of a reed of a keyboard instrument according to claim 1, further comprising:   The reed of a keyboard musical instrument according to claim 1 or 2, further comprising fixing means for fixing the connection engagement projection and the connection engagement recess in a state in which the connection engagement protrusion and the connection engagement recess are in close contact with each other in a vertical direction.   4. The reed of a keyboard instrument according to claim 3, wherein said fixing means has an adhesive for vertically bonding said connection engagement projection and said connection engagement recess.   One or more adhesive injection holes penetrating vertically are formed in one of the connection engagement protrusion and the connection engagement recess, and one or more adhesive injection holes are formed in the other of the connection engagement protrusion and the connection engagement recess. 5. The reed of a keyboard instrument according to claim 4, wherein a plurality of grooves are formed in a plane that is in contact with the adhesive injection hole and arranged radially around the adhesive injection hole.   The fixing means according to claim 4 or 5, wherein the fixing means further includes a fixing screw for screwing the connection engagement protrusion and the connection engagement recess so as to press the connection engagement vertically. In front of a key instrument reed. The connection engagement convex portion is formed in a convex shape projecting vertically, and has a screw convex portion in which a screw hole into which the fixing screw is screwed is formed,
The reed of a keyboard instrument according to claim 6, wherein the coupling engagement concave portion has an insertion hole that penetrates in a vertical direction and into which the screw convex portion is inserted.

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