JP5510889B2 - Musical instrument stand structure - Google Patents

Description

  The present invention relates to a music stand structure for a keyboard instrument such as an electronic piano or an electronic organ.

  2. Description of the Related Art Conventionally, as described in Patent Document 1, a keyboard instrument is provided with a keyboard lid that covers a keyboard portion provided in the instrument body so that the keyboard portion can be opened and closed, and the keyboard lid slides and is accommodated in the instrument body. When the keyboard part is opened, a musical score support member is erected on the keyboard lid.

JP 10-26974 A

  In this kind of keyboard instrument, the music rest is mounted on the keyboard lid so that it can be rotated in the vertical direction, and the music rest is rotated upward before the keyboard lid is slid and stored in the instrument body. In this state, the music stand is erected by sliding the keyboard cover and bringing the back surface of the music rest member into contact with the front end of the top plate located at the top of the instrument body. It is configured to hold in.

  However, in such a music stand structure in a conventional keyboard instrument, the music stand member must be erected on the keyboard lid before the keyboard lid is slid and stored in the instrument body, and the keyboard lid must be slid in this state. Therefore, the operation of the keyboard cover and the music rest member is complicated and not easy to operate, and the music rest is always exposed on the keyboard cover when the keyboard cover is closed. However, there is a problem that it is unnatural and uncomfortable and is not preferable in appearance and design.

  The problem to be solved by the present invention is to provide a musical score stand structure for a keyboard instrument that has good operability of the musical score stand member and the keyboard lid, and is preferable in terms of appearance and design.

In order to solve the above problems, the present invention includes the following components.
According to the first aspect of the present invention, a musical instrument main body provided with a keyboard portion, and slidably provided on the musical instrument main body so as to open and close the keyboard portion, and slidably accommodated in the musical instrument main body. A keyboard cover, a music stand member rotatably mounted on the musical instrument main body, and a musical score support member that can be engaged and disengaged when the musical score stand member is laid down on the musical instrument main body. And a lock member for releasing the lock on the music stand member by the stored keyboard lid when the keyboard lid is stored in the instrument body. It is a standing structure.

  According to a second aspect of the present invention, the music stand member is attached to a fixed shaft provided on the musical instrument main body so as to be rotatable in the vertical direction, and is erected on the musical instrument main body by a spring member. 2. The musical score stand structure for a keyboard instrument according to claim 1, wherein the musical score stand structure is biased toward the keyboard.

  According to a third aspect of the present invention, the lock member is rotatably attached to a support shaft provided in the instrument main body, and a hook portion provided at one end thereof is capable of engaging and disengaging the music rest member. When the contact protrusion provided on the other end is pushed by the keyboard lid, the lock member rotates about the support shaft and the hook portion locks the music stand member. The musical score stand structure for a keyboard instrument according to claim 1 or 2, wherein the musical score stand structure is released.

  According to a fourth aspect of the present invention, the lock member is attached to a holding member provided in the musical instrument main body so as to be slidable in the front-rear direction of the musical instrument main body, and a hook portion provided at one end thereof is the musical score. The stand member is detachably locked, and when the contact protrusion provided on the other end is pushed by the keyboard lid, the lock member slides and the hook portion locks the score stand member. 3. The musical score stand structure for a keyboard instrument according to claim 1 or 2, wherein:

  According to a fifth aspect of the present invention, the hook portion of the lock member includes a spring member that urges the lock member in a direction in which the musical score stand member is locked. Or it is the music stand structure of the keyboard instrument of Claim 4.

  According to a sixth aspect of the present invention, there is provided the lock release selecting member having a lock release portion that releases the lock by the lock member and a non-lock release portion that does not release the lock by the lock member. The musical score stand structure for a keyboard instrument according to any one of claims 1 to 5, which is provided so as to be movable in a direction orthogonal to the sliding direction of the lid.

  According to the present invention, when the keyboard cover is slid and stored in the musical instrument body, the lock member is released from the lock to the musical score support member disposed on the musical instrument body by the stored keyboard cover, so that the musical score support member Can be easily and easily rotated on the instrument body to stand up. In addition, when the keyboard cover is slid to cover the keyboard part, the music rest member can be placed on the instrument body so that it can be placed on the instrument body in a natural state. Therefore, there is no sense of incongruity and it can be arranged well. For this reason, it is possible to provide a keyboard instrument that has good operability of the music rest member and the keyboard lid and is preferable in terms of appearance and design.

It is sectional drawing which showed Embodiment 1 of the keyboard musical instrument to which this invention is applied. FIG. 2 is a plan view showing a part of the keyboard instrument of FIG. 1 in a state where a keyboard cover is closed and a music rest member is stored. FIG. 2 is a cross-sectional view showing a state in which the keyboard cover is housed in the instrument body and the music stand member is erected in the keyboard instrument of FIG. 1. It is the expanded sectional view which showed the A section in the keyboard musical instrument of FIG. FIG. 5 is an enlarged cross-sectional view showing a state in which the lock is released by a lock release selection member provided on a keyboard cover housed in the instrument body in the lock member of FIG. 4. FIG. 5 is an enlarged cross-sectional view showing a state where the lock is not released by an unlock selection member provided on a keyboard lid housed in the instrument body in the lock member of FIG. 4. FIG. 3 is an enlarged perspective view showing a rear part of the keyboard cover of FIG. 2. It is the disassembled perspective view which showed the rear part of the keyboard cover of FIG. 7, and the lock release selection member attached to this. The lock release selection member of FIG. 8 is shown, (a) is the top view, (b) is the side view, (c) is the front view. It is sectional drawing which showed Embodiment 2 of the keyboard musical instrument to which this invention is applied. FIG. 11 is a cross-sectional view illustrating a state in which the keyboard cover is housed in the instrument body and the music stand member is erected in the keyboard instrument of FIG. 10. It is an expanded sectional view which showed the B section in the keyboard musical instrument of FIG. It is the enlarged view which showed the locking member of FIG. It is the enlarged front view which looked at the locking member of Drawing 13 from the front side. FIG. 13 is an enlarged cross-sectional view showing a state in which the lock is released by the lock release selection member provided on the keyboard lid housed in the instrument body in the lock member of FIG. 12. FIG. 13 is an enlarged cross-sectional view showing a state where the lock is not released by an unlock selection member provided on a keyboard lid housed in the instrument body in the lock member of FIG. 12.

(Embodiment 1)
Hereinafter, a first embodiment of a keyboard instrument to which the present invention is applied will be described with reference to FIGS.
As shown in FIG. 1, the keyboard musical instrument includes a musical instrument main body 1. The instrument main body 1 includes a bottom plate 2. A front plate 3 is provided upright at a front end portion (left end portion in FIG. 1) of the bottom plate 2, and a rear plate 4 is provided upright at a rear end portion (right end portion in FIG. 1) of the bottom plate 2. Is provided. Further, as shown in FIGS. 1 and 2, a pair of side plates 5 are provided upright on both side portions (left and right sides in FIG. 2) of the bottom plate 2.

  The pair of side plates 5 has a rear portion positioned rearward of the intermediate portion in the front-rear direction (left-right direction in FIG. 1) at the same height as the rear plate 4, and a front portion positioned in front of the intermediate portion. Is inclined toward the front side (left side in FIG. 1), and the inclined front end portion is formed at substantially the same height as the front plate 3. A top plate 6 is provided on the rear portion of the pair of side plates 5 and on each upper portion of the rear plate 4. Thereby, the musical instrument main body 1 is formed in a substantially box shape with the front side of the top plate 6 opened upward.

  As shown in FIGS. 1 and 3, a keyboard portion 7 is provided in the musical instrument main body 1 so as to be exposed upward. The keyboard unit 7 includes a keyboard chassis 8 disposed on the front side (left side in FIG. 1) on the bottom plate 2 in the instrument body 1 and a plurality of keyboard chassis 8 disposed on the keyboard chassis 8 so as to be rotatable in the vertical direction. A key 9, a plurality of hammer members 10 for applying an action load to each key 9 according to the key pressing operation of the plurality of keys 9, and a switch signal are output according to each key pressing operation of the plurality of keys 9. And a switch unit 11.

  In this case, as shown in FIGS. 1 and 3, the plurality of keys 9 are composed of white keys and black keys, which are arranged in the order of the scale. The plurality of hammer members 10 are respectively attached to the keyboard chassis 8 so as to be rotatable in the vertical direction in a state corresponding to the lower sides of the plurality of keys 9. The hammer member 10 is configured to apply an action load to each key 9 by rotating against the weight of each hammer member 10 when the hammer member 10 is pressed down in response to a key pressing operation of each key 9. Has been.

  Further, as shown in FIGS. 1 to 3, the musical instrument main body 1 is provided with a keyboard lid 12 slidably covering the upper portion of the keyboard portion 7 so as to be opened and closed. The keyboard lid 12 is configured such that a front end portion thereof is guided in the front-rear direction of the instrument main body 1 by the front guide 13 and a rear end portion thereof is guided in the front-rear direction of the instrument main body 1 by the rear guide portion 14. .

  In this case, as shown in FIGS. 1 and 3, the front guide portion 13 is a guide groove that supports and guides the guide shaft 15 provided at the lower front end of the keyboard lid 12. It is provided on the inner surface. That is, the front guide portion 13 is a portion of the side plate 5 that is gently curved from the location of the side plate 5 corresponding to the front end portion of the keyboard portion 7 obliquely upward and located above the rear portion of the keyboard portion 7, that is, the top plate. 6 is provided continuously over the side plate 5 located below the front end portion of 6.

  Further, as shown in FIGS. 1 and 3, the rear guide portion 14 includes a rack gear 14 a that guides while rotatably supporting a pinion gear 16 provided at the lower rear end of the keyboard lid 12. The side plate 5 is provided on the inner surface. That is, the rear guide portion 14 is slightly inclined obliquely downward from the location of the side plate 5 corresponding to the upper rear portion of the keyboard portion 7 and extends to the location of the side plate 5 corresponding to the rear portion in the instrument body 1. It is provided continuously.

  Thereby, as shown in FIG. 1, the keyboard cover 12 is positioned at the front end portion of the front guide portion 13 with the guide shaft 15 at the front end lower portion being guided toward the front side by the front side guide portion 13, and at the lower end of the rear end. When the pinion gear 16 meshes with the rack gear 14a of the rear guide portion 14 and moves toward the front side while rotating and is positioned at the front end portion of the rear guide portion 14, the keyboard portion is disposed above the keyboard portion 7. 7 is covered.

  Further, as shown in FIG. 3, the keyboard cover 12 is located at the rear end portion of the front guide portion 13 while the guide shaft 15 at the lower front end is guided rearward by the front guide portion 13 and the rear end. When the lower pinion gear 16 meshes with the rack gear 14a of the rear guide portion 14 and moves toward the rear while rotating and is positioned at the rear end portion of the rear guide portion 14, the lower pinion gear 16 It is configured to be accommodated in the instrument main body 1 in a corresponding state.

  By the way, on the top plate 6 of the musical instrument main body 1, as shown in FIGS. 1 to 3, a music rest member 18 is provided in a state in which it can stand upside down, that is, in a state in which it can rotate in the vertical direction. As shown in FIG. 2, the music rest member 18 is formed in a substantially rectangular flat plate shape. Further, as shown in FIGS. 1 and 2, a storage recess 19 for storing the music rest member 18 is removably provided on the top surface of the top plate 6.

  As shown in FIGS. 1 and 3, the music stand member 18 has a front end portion (left end portion in FIG. 1) attached to a fixed shaft 20 provided in the storage recess 19 so as to be rotatable in the vertical direction. Further, the musical score rest member 18 is urged in a direction to stand up by a leaf spring 21 provided in the housing recess 19, that is, a direction to rotate upward about the fixed shaft 20. As a result, the music rest member 18 is configured to be disposed in the storage recess 19 of the top plate 6 by rotating downward and resisting against the spring force of the leaf spring 21.

  On the other hand, as shown in FIGS. 4 to 6, a lock member for releasably locking the music rest member 18 that is stored sideways in the storage recess 19 of the top plate 6 is provided at the rear upper portion in the instrument body. 22 is provided. The lock member 22 is rotatably attached to a support shaft 23 provided in the musical instrument main body 1, and a hook portion 22 a provided at an upper end portion of the lock member 22 detachably engages the music rest member 18, and a lower end portion thereof. When the abutment protrusion 22b provided on the keyboard is pressed by the keyboard cover 12, the support projection 23 rotates around the support shaft 23 to release the lock on the music rest member 18 by the hook portion 22a at the upper end. Yes.

  That is, as shown in FIGS. 4 to 6, the lock member 22 has an upper end hook portion 22 a that protrudes into the storage recess 19 of the top plate 6 through a through hole 6 a provided in the top plate 6. The hook portion 22a is configured to detachably engage the engaging pin 24 provided on the music rest member 18. In this case, the music rest member 18 is provided with an insertion recess 18a into which the hook portion 22a of the lock member 22 is inserted, and an engagement pin 24 is provided at the rear portion (right side in FIG. 4) of the insertion recess 18a. Is provided.

  As shown in FIGS. 4 to 6, the lock member 22 has a direction in which the hook portion 22 a at the upper end engages the engagement pin 24 of the music rest member 18 by the spring member 25 (clockwise direction in FIG. 4). ). That is, the spring member 25 is a coil spring, and one end portion (right end portion in FIG. 4) is attached to the rear portion in the musical instrument main body 1, and the other end portion (left end portion in FIG. 4) is a support shaft in the lock member 22. It attaches to the location located above 23, and it is comprised so that the lock member 22 may be rotated clockwise in this state.

  By the way, as shown in FIG. 2 and FIG. 7, the unlocking selection member 26 is placed in the sliding direction of the keyboard lid 12 at a position corresponding to the locking member 22 in the rear end portion (upper side portion in FIG. 2) of the keyboard lid 12. It is provided so as to be movable along the direction orthogonal to the direction, that is, along the rear end of the keyboard lid 12. As shown in FIGS. 7 to 9, the unlocking selection member 26 is formed by bending a metal plate into a U-shaped cross section, and a pair of guide protrusions 27 are provided on the inner surface of the upper portion thereof.

  The unlock selection member 26 is fitted into the rear end portion of the keyboard lid 12, and a pair of guide protrusions 27 are inserted into a pair of guide grooves 28 provided on the upper surface of the keyboard lid 12. The protrusion 27 is configured to move along a pair of guide grooves 28 in a direction orthogonal to the sliding direction of the keyboard lid 12. In this case, a notch portion 29 into which the abutting protrusion 22 b of the lock member 22 is inserted is provided at a position located between the pair of guide grooves 28 at the rear end portion of the keyboard lid 12.

  In addition, the lock release selection member 26 includes a non-lock release portion 30 that does not release the lock by the lock member 22 when the contact protrusion 22b of the lock member 22 is inserted corresponding to the cut portion 29 of the keyboard lid 12. There are provided unlocking portions 31 that are located on both sides of the unlocking portion 30 and that push and move the contact protrusions 22b of the locking member 22 to release the lock by the locking member 22.

  In other words, the non-lock release portion 30 is a cut portion provided in the intermediate portion of the lock release selection member 26, and the keyboard release cover 30 with the lock release selection member 26 sliding to correspond to the cut portion 29 of the keyboard cover 12. When 12 is housed in the musical instrument main body 1, the locking member 22 is configured not to rotate by inserting the abutting protrusion 22 b of the locking member 22 into the notch 29 of the keyboard lid 12.

  The unlocking portions 31 are located on both sides of the unlocking portion 30 that is the cut portion of the unlocking selection member 26, and the unlocking selection member 26 slides and closes in correspondence with the cutting portion 29 of the keyboard lid 12. When the keyboard cover 12 is housed in the musical instrument main body 1 in this state, the lock member 22 is rotated by pressing and moving the contact protrusion 22b of the lock member 22.

  In this case, as shown in FIGS. 1 and 2, the lock release selection member 26 is configured such that when the keyboard lid 12 is pulled out from the instrument body 1 and placed above the keyboard portion 7, The front end portion is exposed to the outside of the instrument main body 1 from the lower side of the front end portion of the top plate 6, and is configured to be slid from the outside of the instrument main body 1.

Next, the operation of such a keyboard instrument will be described.
When the keyboard instrument is not used, the keyboard lid 12 is moved to the front side of the instrument body 1 and disposed above the keyboard unit 7 as shown in FIG. At this time, the guide shaft 15 at the lower front end of the keyboard cover 12 is guided toward the front side by the front guide portion 13 and positioned at the front end portion of the front guide portion 13, and the pinion gear 16 at the lower rear end is positioned at the rear guide portion. It moves toward the front side while meshing with the 14 rack gears 14 a and moves to the front side and is positioned at the front end of the rear side guide part 14.

  As a result, the keyboard lid 12 is pulled out from the instrument body 1 and disposed above the keyboard portion 7 to cover the keyboard portion 7. At this time, the lock release selection member 26 provided at the rear end of the keyboard lid 12 is disposed at a position away from the lock member 22. In this state, the music rest member 18 can be stored in a lying manner in a storage recess 19 provided in the top plate 6 of the instrument body 1. That is, by rotating the music rest member 18 downward (clockwise) against the spring force of the leaf spring 21 around the fixed shaft 20 in the housing recess 19, the music rest member 18 is stored in the top plate 6. It is stored in the recess 19 so as to lie sideways.

  At this time, the engagement pin 24 provided on the music rest member 18 is locked to the lock member 22. That is, when the music rest member 18 is housed in the housing recess 19, the hook portion 22 a at the upper end of the lock member 22 is relatively inserted into the insertion recess 18 a of the music rest 18, and the insertion recess 18 a The engagement pin 24 provided on the hook rotates the hook portion 22a of the lock member 22 against the spring force of the spring member 25 and gets over it. Then, the lock member 22 rotates clockwise by the spring force of the spring member 25, and the hook portion 22 a locks the engagement pin 24.

  Next, the case where this keyboard instrument is used will be described. At this time, first, the unlocking selection member 26 of the keyboard lid 12 is slid so that the unlocking portion 31 corresponds to the notch 29 of the keyboard lid 12. That is, as shown in FIGS. 7 to 9, the lock release selection member 26 includes a non-lock release portion 30 and a lock release portion 31, and thus a pair of guide protrusions 27 provided on the lock release selection member 26. Is slid along a pair of guide grooves 28 provided on both sides of the notch portion 29 of the keyboard lid 12 so that the lock release portion 31 is made to correspond to the notch portion 29 of the keyboard lid 12 and the notch portion 29 is blocked. .

  In this state, the keyboard lid 12 is moved toward the rear portion of the musical instrument main body 1 while lifting the front end portion thereof. Then, the keyboard cover 12 is positioned at the rear end portion of the front guide portion 13 with the guide shaft 15 at the lower front end guided by the front guide portion 13 toward the rear side, and the pinion gear 16 at the lower rear end is located at the rear side. The musical instrument main body 1 is in a state corresponding to the lower side of the top plate 6 when it moves toward the rear side while meshing with the rack gear 14a of the guide portion 14 and is positioned at the rear end portion of the rear guide portion 14. It is stored in.

  When the keyboard cover 12 is housed in the instrument body 1 in this way, as shown in FIG. 5, the lock release selection member 26 provided at the rear end of the keyboard cover 12 is brought into contact with the contact protrusion 22 b of the lock member 22. The locking member 22 is rotated counterclockwise by contacting. That is, the unlocking selection member 26 is disposed in a state where the unlocking portion 31 closes the cut portion 29 provided at the rear end portion of the keyboard lid 12, so that the keyboard lid 12 is housed in the instrument body 1. Then, as shown in FIG. 5, the unlocking portion 31 of the unlocking selection member 26 abuts against the abutting projection 22 b of the locking member 22, and this abutting projection 22 b resists the spring force of the spring member 25. And press.

  Then, the lock member 22 rotates counterclockwise around the support shaft 23. Thereby, as shown in FIG. 5, the hook portion 22 a at the upper end portion of the lock member 22 is detached from the engagement pin 24 provided in the insertion recess 18 of the music rest member 18, and the hook portion 22 a of the lock member 22 The lock with respect to the engaging pin 24 of the music stand member 18 is released. Then, as shown in FIG. 3, the music rest member 18 rotates upward about the fixed shaft 20 by the spring force of the leaf spring 21, and rises on the top plate 6 in a state of being inclined rearward.

  By the way, if the musical score stand member 18 is not raised on the top plate 6 even if the keyboard lid 12 is housed in the musical instrument main body 1, as shown in FIG. And the non-lock release part 30 is made to correspond to the cut part 29 of the keyboard cover 12, and the contact protrusion 22b of the lock member 22 passes through the non-lock release part 30 and the cut part of the keyboard cover 12 as shown in FIG. 29 in a state where it can be inserted.

  When the keyboard cover 12 is housed in the instrument main body 1 in this state, the lock member 22 is not rotated even when the lock release selection member 26 of the keyboard cover 12 reaches the lock member 22 as shown in FIG. . That is, when the keyboard lid 12 is stored in the instrument main body 1, the abutment protrusion 22 b of the lock member 22 is inserted into the non-lock release portion 30 of the unlock selection member 26 and is inserted into the cut portion 29 of the keyboard lid 12. Therefore, the lock member 22 does not rotate.

  For this reason, the hook portion 22a at the upper end portion of the lock member 22 maintains the locked state in which the engagement pin 24 provided in the insertion recess 18 of the music rest member 18 is locked, so that the keyboard lid 12 is inside the instrument body 1. Even if stored, the music rest member 18 does not rotate around the fixed shaft 20 by the spring force of the leaf spring 21 and rises on the top plate 6 but is stored in the storage recess 19 of the top plate 6. Maintain the state.

  As described above, according to the musical score stand structure of the keyboard instrument, the instrument body 1 provided with the keyboard portion 7 is slidably provided to cover the keyboard portion 7 so as to be openable and closable, and is slid into the instrument body 1 for storage. Keyboard cover 12, a music stand member 18 mounted on the musical instrument main body 1 so as to be rotatable in the vertical direction, and the musical score stand member 18 when the musical score stand member 18 is disposed on the musical instrument main body 1 sideways. A lock member 22 that is detachably locked and that releases the lock to the music rest member 18 by the stored keyboard lid 12 when the keyboard lid 12 is stored in the instrument body 1 is provided. Therefore, it is possible to provide a keyboard instrument that has good operability of the music rest member 18 and the keyboard lid 12 and that is favorable in terms of appearance and design.

  That is, in this musical score stand structure of a keyboard instrument, when the keyboard lid 12 is slid and stored in the musical instrument main body 1, the lock member 22 is provided on the top plate 6 of the musical instrument main body 1 by the stored keyboard lid 12. Since the locking with respect to the musical score support member 18 is released, the musical score support member 18 can be easily and easily rotated on the musical instrument main body 1 to stand.

  Further, when the keyboard cover 12 is slid to cover the keyboard portion 7, the music rest member 18 can be placed on the top plate 6 of the musical instrument body 1 so that the music rest member 18 can be placed on the musical instrument. There is no sense of incongruity on the main body 1 in a natural state, and it can be arranged well. For this reason, the operability of the music rest member 18 and the keyboard lid 12 is good, and it is possible to provide a preferable one in terms of appearance and design.

  In this case, the music stand member 18 is attached to a fixed shaft 20 provided in a storage recess 19 in the top plate 6 of the musical instrument body 1 so as to be rotatable in the vertical direction and attached in a direction to stand up by a leaf spring 21. Since the keyboard cover 12 is housed in the musical instrument main body 1 and the lock on the music rest 18 is released by the lock member 22, the music rest 18 is automatically moved by the spring force of the leaf spring 21. It can stand on the top plate 6. Further, when the keyboard cover 12 is pulled out to cover the keyboard portion 7, the music rest member 18 can be simply laid down against the spring force of the leaf spring 21, so that it can be easily placed in the storage recess 19 of the top plate 6. Can be stored.

  Further, in this music stand structure, the lock member 22 is rotatably attached to a support shaft 23 provided in the musical instrument main body 1, and a hook portion 22 a provided at the upper end portion of the lock member 22 is provided on the music stand member 18. When the engagement pin 24 is detachably locked and the contact protrusion 22b provided at the lower end of the lock member 22 is pressed by the keyboard cover 12, the lock member 22 rotates about the support shaft 23. Therefore, the engaging pin 24 of the music rest member 18 housed in the housing recess 19 of the top plate 6 can be locked with the lock member 22 with a simple structure. The hook portion 22a can be detachably locked to be securely locked, and the musical score rest member 18 by the lock member 22 can be secured by simply sliding the keyboard lid 12 and storing it in the instrument body 1. Against it is possible to reliably released the lock.

  Further, in this music rest structure, the hook portion 22a at the upper end of the lock member 22 is provided with a spring member 25 that biases the lock member 22 in a direction in which the engagement pin 24 of the music rest 18 is locked. Therefore, when the musical score support member 18 is laid down and stored in the storage recess 19 of the top plate 6 of the musical instrument main body 1, the engaging pin 24 of the musical score support member 18 connects the hook portion 22 a of the lock member 22 to the spring member 25. The hook portion 22a of the lock member 22 can reliably lock the engaging pin 24 of the music rest member 18 by the spring force of the spring member 25, and thereby the music rest member can be secured. 18 is not only easy to operate, but the music rest member 18 can be reliably held in a state of being housed in the housing recess 19 of the top plate 6 of the instrument body 1.

  Furthermore, in this musical score stand structure, the lock release selection member 26 provided on the keyboard lid 12 so as to be movable in a direction orthogonal to the sliding direction thereof, the lock release portion 31 for releasing the lock by the lock member 22, and the lock member 22. Since the lock release portion 30 that does not release the lock is provided, the lock release selection member 26 is slid to select either the lock release portion 31 or the non-lock release portion 30, so that the keyboard cover 12 Is stored in the musical instrument main body 1, it is possible to select either a state in which the lock by the lock member 22 for the music rest member 18 is released or a state in which the lock is not released.

  That is, when the keyboard cover 12 is stored in the musical instrument body 1, when the lock by the lock member 22 is released from the music rest member 18, the lock release selection member 26 is slid and the notch provided on the keyboard cover 12 is cut. The lock release part 31 is made to correspond to the part 29, and the notch part 29 of the keyboard lid 12 is closed by the lock release part 31, so that the lock release part 31 is locked by the lock member 22 when the keyboard cover 12 is stored in the instrument body 1. The lock member 22 can be rotated by abutting against the abutment protrusion 22b, and the lock of the music rest member 18 by the lock member 22 can be released.

  In addition, when the keyboard cover 12 is stored in the musical instrument main body 1, if the lock by the lock member 22 is not released with respect to the music rest member 18, the lock release selection member 26 is slid and a cut provided in the keyboard cover 12 is performed. When the keyboard cover 12 is stored in the musical instrument main body 1, the contact protrusion 22 b of the lock member 22 is unlocked by opening the notch 29 of the keyboard cover 12 by associating the unlocking part 30 with the part 29. The lock member 22 can be prevented from rotating by being inserted into the notch 29 of the keyboard lid 12 through the release portion 30, and thus the lock on the music rest member 18 by the lock member 22 can be prevented from being released.

(Embodiment 2)
Next, a second embodiment of the keyboard instrument to which the present invention is applied will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected and demonstrated to the same part as Embodiment 1 shown by FIGS.
As shown in FIGS. 10 and 11, the keyboard instrument has a configuration that is different from that of the first embodiment in the lock member 40 that locks the music rest member 18, and has substantially the same configuration as that of the first embodiment.

  That is, as shown in FIGS. 10 to 16, the lock member 40 is slidably attached along a sliding direction of the keyboard lid 12 between a pair of holding members 41 provided in the instrument main body 1, and has an upper end portion. The hook portion 40a provided on the upper end portion detachably locks the music rest member 18, and when the contact protrusion 40b provided on the lower end portion is pushed and slid by the keyboard lid 12, the hook portion 40a on the upper end portion is provided. It is comprised so that the latching with respect to the music stand member 18 may be cancelled | released.

  In this case, as shown in FIGS. 12 to 16, the pair of holding members 41 are opposed to each other in the direction perpendicular to the sliding direction of the keyboard cover 12 at the rear portion (right side portion in FIG. 10) in the instrument body 1. A pair of guide grooves 42 are formed in the upper and lower portions of the portions facing each other, and are elongated along the sliding direction of the keyboard lid 12.

  As shown in FIG. 14, the lock member 40 is disposed between the pair of holding members 41, and is provided on the middle in the vertical direction so that the pair of guide protrusions 43 protrudes left and right. The pair of guide protrusions 41 are configured to be slidably inserted into and held in the guide grooves 42 of the pair of holding members 41.

  Further, as shown in FIGS. 12 and 13, the lock member 40 has a hook portion 40 a at the upper end protruding into the storage recess 19 of the top plate 6 through the through hole 6 a provided in the top plate 6. The hook part 40a is configured to detachably engage the engaging pin 24 provided on the music rest member 18. Also in this case, the music rest member 18 is provided with an insertion recess 18a into which the hook portion 22a of the lock member 22 is inserted, as shown in FIG. On the left side, an engagement pin 24 is provided.

  Further, as shown in FIGS. 12 to 16, the lock member 40 is arranged in a direction (left side in FIG. 12) in which the hook portion 40 a at the upper end engages the engagement pin 24 of the music rest member 18 by the spring member 44. It is energized towards. That is, the spring member 44 is a coil spring, and one end portion (left end portion in FIG. 12) is attached to an attachment piece 45 provided on the front side (left side in FIG. 12) of the pair of holding members 41 in the instrument body 1. The other end (right end in FIG. 12) is attached to the lock member 40, and in this state, the lock member 40 is configured to move toward the front side (left side in FIG. 12) of the instrument body 1.

Next, the operation of such a lock member 40 will be described.
First, when the music rest member 18 is locked by the lock member 40, as shown in FIG. 10, the music rest is centered on the fixed shaft 20 in the storage recess 19 provided on the top plate 6 of the musical instrument body 1. By rotating the member 18 downward (clockwise) against the spring force of the leaf spring 21, the musical score support member 18 is stored in the storage recess 19 of the top plate 6 so as to fall sideways. The locking member 40 locks the engagement pin 24 provided in the.

  That is, when the music rest member 18 is housed in the housing recess 19, the hook portion 40 a at the upper end of the lock member 40 is relatively inserted into the insertion recess 18 a of the music rest member 18, and the insertion recess 18 a The engaging pin 24 provided on the sliding member slides over the hook portion 40 a of the locking member 40 against the spring force of the spring member 44. Then, as shown in FIG. 12, the lock member 22 slides toward the front side of the musical instrument main body 1 by the spring force of the spring member 44, and the hook portion 40 a locks the engagement pin 24. Thereby, the music rest member 18 is housed and held in the housing recess 19.

  Further, when unlocking the music rest member 18 by the lock member 40, the keyboard lid 12 is housed in the instrument body 1 as shown in FIG. Then, the lock release portion 31 of the lock release selection member 26 provided at the rear end portion of the stored keyboard lid 12 opposes the contact protrusion 40 b at the lower end portion of the lock member 40 against the spring force of the spring member 44. Press. As a result, the lock member 40 slides backward in the musical instrument main body 1, and unlocks the music rest member 18 by the hook portion 40 a of the lock member 40.

  In this case, as in the first embodiment, the unlocking selection member 26 of the keyboard lid 12 is slid in advance so that the unlocking portion 31 corresponds to the notch portion 29 of the keyboard lid 12. When the keyboard cover 12 is housed in the instrument body 1 in this state, the unlocking portion 31 of the unlocking selection member 26 provided at the rear end portion of the keyboard lid 12 is brought into contact with the locking member 40 as shown in FIG. The contact protrusion 40b is slid toward the rear (right side in FIG. 15) in the musical instrument main body 1 against the spring force of the spring member 44.

  Then, the guide projection 43 of the lock member 40 slides along the guide groove 42 of the holding member 41 toward the rear side in the musical instrument main body 1. As a result, as shown in FIG. 15, the hook portion 40 a at the upper end of the lock member 40 is detached from the engagement pin 24 provided in the insertion recess 18 of the music rest member 18, and the hook portion 40 a of the lock member 40 The lock with respect to the engaging pin 24 of the music stand member 18 is released. Then, like the first embodiment, the music rest member 18 is rotated about the fixed shaft 20 by the spring force of the leaf spring 21 and stands on the top plate 6.

  Further, even when the keyboard cover 12 is housed in the musical instrument main body 1, if the music stand member 18 is not raised on the top plate 6, the unlock selection member 26 of the keyboard cover 12 is previously set as in the first embodiment. The non-lock release part 30 is slid to correspond to the cut part 29 of the keyboard cover 12 so that the contact protrusion 40b of the lock member 40 can be inserted into the cut part 29 of the keyboard cover 12 through the non-lock release part 30. deep.

  In this state, as shown in FIG. 16, when the keyboard cover 12 is stored in the musical instrument main body 1, the contact protrusion 40 b of the lock member 40 is inserted into the non-lock release portion 30 of the lock release selection member 26 and the keyboard cover 12. Therefore, the lock member 40 does not slide. For this reason, since the hook portion 40a of the lock member 40 maintains the locked state in which the engaging pin 24 of the music rest member 18 is locked, even if the keyboard cover 12 is housed in the musical instrument main body 1, the music rest member 18 does not move. The state of being housed in the housing recess 19 of the top plate 6 is maintained without being raised on the top plate 6 by the spring force of the leaf spring 21.

  As described above, also in the musical score stand structure of the keyboard instrument, when the keyboard cover 12 is slid and stored in the musical instrument main body 1, the lock member 22 is moved by the stored keyboard cover 12 to the musical instrument main body 1. Since the lock on the music rest member 18 provided on the top plate 6 is released, the music rest member 18 can be easily and easily rotated on the musical instrument body 1 to stand.

  Further, when the keyboard cover 12 is slid to cover the keyboard portion 7, the music rest member 18 can be placed on the top plate 6 of the musical instrument body 1 so that the music rest member 18 can be placed on the musical instrument. There is no sense of incongruity in a natural state on the main body 1, and it can be satisfactorily arranged. For this reason, the operability of the music rest member 18 and the keyboard lid 12 is good, and it is possible to provide a preferable one in terms of appearance and design.

  Also in this case, the music rest member 18 is attached to the fixed shaft 20 provided in the storage recess 19 in the top plate 6 of the musical instrument main body 1 so as to be rotatable in the vertical direction and is erected by the leaf spring 21. Therefore, the musical score rest member 18 is automatically moved by the spring force of the leaf spring 21 simply by storing the keyboard lid 12 in the instrument body 1 and releasing the lock of the musical score rest member 18 by the lock member 22. Thus, it can stand up on the top plate 6. Further, when the keyboard cover 12 is pulled out to cover the keyboard portion 7, the music rest member 18 can be simply laid down against the spring force of the leaf spring 21, so that it can be easily placed in the storage recess 19 of the top plate 6. Can be stored.

  Further, in this music stand structure, the lock member 40 is slidably attached to a pair of holding members 41 provided in the musical instrument main body 1, and the hook portion 40 a provided at the upper end portion of the lock member 40 includes the music stand member. When the contact protrusion 40b provided at the lower end of the lock member 40 is pushed by the keyboard cover 12, the lock member 40 slides and the hook portion 40a is engaged. Therefore, the engaging pin 24 of the music rest member 18 housed in the housing recess 19 of the top plate 6 is connected to the hook portion 40a of the lock member 40 with a simple structure. The musical score holder 18 can be locked to the musical score holder 18 simply by sliding the keyboard lid 12 into the instrument body 1 and storing it. The lock that can be reliably canceled.

  Further, in this music rest structure, the hook portion 40a at the upper end of the lock member 40 includes a spring member 44 that biases the lock member 40 in a direction in which the engagement pin 24 of the music rest 18 is locked. Therefore, when the musical score support member 18 is laid down and stored in the storage recess 19 of the top plate 6 of the musical instrument body 1, the engaging pin 24 of the musical score support member 18 connects the hook portion 40 a of the lock member 40 to the spring member 44. The hook portion 40a of the lock member 40 can reliably lock the engaging pin 24 of the music rest member 18 by the spring force of the spring member 44, thereby overcoming the spring force against the spring force. 18 is not only easy to operate, but the music rest member 18 can be reliably held in a state of being housed in the housing recess 19 of the top plate 6 of the instrument body 1.

  Furthermore, in this musical score stand structure, as in the first embodiment, the unlocking selection member 26 provided on the keyboard lid 12 so as to be movable in a direction orthogonal to the sliding direction releases the lock by the locking member 40. 31 and the non-lock release portion 30 that does not release the lock by the lock member 40, the lock release selection member 26 is slid to select either the lock release portion 31 or the non-lock release portion 30. Thus, as in the first embodiment, when the keyboard lid 12 is housed in the musical instrument main body 1, one of a state in which the lock by the lock member 40 with respect to the music rest member 18 and a state in which the lock is not released is selected. be able to.

  In the first and second embodiments described above, the present invention is applied to a keyboard instrument having a keyboard portion 7 configured to apply an action load to the key 9 by rotating the hammer member 10 when the key 9 is depressed. However, the keyboard part does not necessarily have the hammer member 10 and can be applied to a keyboard instrument having a simple keyboard part without the hammer member 10.

DESCRIPTION OF SYMBOLS 1 Musical instrument body 2 Bottom plate 3 Front plate 4 Rear plate 5 Side plate 6 Top plate 7 Keyboard part 12 Keyboard cover 13 Front side guide part 14 Rear side guide part 15 Guide shaft 16 Pinion gear 19 Storage recessed part 20 Fixed shaft 21 Leaf spring 22, 40 Lock Member 22a, 40a Hook part 22b, 40b Contact protrusion 23 Support shaft 24 Engagement pin 25, 44 Spring member 26 Unlock selection member 29 Cut part 30 Unlock part 31 Unlock part

Claims (6)

An instrument body with a keyboard,
A keyboard lid that is slidably provided on the instrument body and covers the keyboard part so as to be openable and closable, and is slid and stored in the instrument body;
A music rest member attached to the instrument body so as to be rotatable in the vertical direction;
When the music rest member is laid down on the instrument body, the music rest member is detachably locked, and when the keyboard cover is stored in the instrument body, the stored keyboard cover is stored. And a lock member for releasing the lock on the music stand member.   The musical score stand member is attached to a fixed shaft provided on the musical instrument main body so as to be rotatable in the vertical direction, and is urged by a spring member in a direction to stand on the musical instrument main body. The musical score stand structure for a keyboard musical instrument according to claim 1,   The lock member is rotatably attached to a support shaft provided in the instrument body, and a hook portion provided at one end thereof removably engages the music stand member and is provided at the other end. 2. The locking mechanism according to claim 1, wherein when the contact protrusion is pressed by the keyboard cover, the hook is rotated about the support shaft to release the hook from the hook. 2. A music stand structure for a keyboard instrument described in 2.   The lock member is attached to a holding member provided in the instrument main body so as to be slidable in the front-rear direction of the instrument main body, and a hook portion provided at one end of the lock member engages and disengages the music rest member. Then, when the contact protrusion provided on the other end is pushed by the keyboard cover, the slide is released to unlock the music stand member by the hook portion. Item 2. A music stand structure for a keyboard instrument according to item 2.   5. The keyboard instrument according to claim 3, further comprising a spring member that biases the lock member toward a direction in which the hook portion of the lock member engages the music rest member. The music stand structure. A direction in which the lock release selection member having a lock release portion for releasing the lock by the lock member and a non-lock release portion that does not release the lock by the lock member is orthogonal to the sliding direction of the keyboard lid. The musical score stand structure for a keyboard musical instrument according to any one of claims 1 to 5, wherein the musical score stand structure is provided so as to be movable.

Images