JP2513557Y2 - Music stand structure for electronic musical instruments - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a music stand structure for an electronic musical instrument, and more particularly, when closing a rotatable lid for opening and closing a performance operating section composed of a control panel in the electronic musical instrument. Even when the music stand rotatably attached to the rotary lid is extended from the lid to the operating position, the music stand collides with various operation elements such as knobs and switches on the surface of the control panel. It is about being able to prevent it.

[Conventional technology]

FIG. 5 shows a performance operation unit 1 such as an electronic piano in which a keyboard KB and a control panel CP having various operation elements 2 such as knobs and switches are arranged in parallel. The performance operating section 1 is configured to be closed by a lid 4 rotatably attached by a shaft 3 behind the control panel CP (on the side opposite to the keyboard KB). A music stand 6 is attached to a portion of the lid 4 adjacent to the shaft 3 by a hinge 5. The music stand 6 has a standby position in which it retreats until it approaches the inner direction of the lid 4 (the surface facing the operation section 1 when the performance operation section 1 is closed), and an operation position in which it projects from the inner surface of the lid 4. It can be rotated between and.
When playing the electronic musical instrument, as shown by the solid line, the lid 4 is opened, the music stand 6 is pivotally projected to the operating position, the music sheet 8 is placed on the music stand 6, and the musical instrument 8 is moved inward of the lid 4. Lean against. When the performance is over, the musical score 8 is removed, the musical score stand 6 is pivotally retracted to the standby position, and then the lid 4 is closed.

[Problems to be solved by the device]

However, in such an electronic musical instrument, the lid 4 may be inadvertently closed while the music stand 6 is projected to the operating position. In such a case, the protruding tip end of the music stand 6 collides with the operation element 2 on the surface of the control panel CP, thereby damaging the element 2 or creating a cause of malfunction of the element 2. .

This invention has been made in view of the above-mentioned points, and when the lid of the performance operation section is closed while the music stand is projected to the operating position, the music stand does not collide with the operation element on the control panel. It is intended to provide a music stand structure in an electronic musical instrument that can be easily and surely prevented.

[Means for solving the problem]

In order to solve the above-mentioned problems, a music stand structure in an electronic musical instrument according to the present invention is an electronic musical instrument having a rotatable lid for opening and closing a performance operating section composed of a control panel on which various operating elements are projected, The lid is attached to an operation portion facing surface facing the operation portion when the performance operation portion is closed, and protrudes from the operation portion facing surface of the lid so that a musical score for playing can be placed in a state where the lid is opened. A music stand that is rotatable between an operating position and a standby position that retracts toward the operation unit facing surface, and a music stand that is integrally attached to the music stand and that has the music stand protruding to the operating position. Is provided so as to land on a non-elemental part where the operation element does not exist on the surface of the control panel when closed, and in the state of landing on the non-elemental part, It is obtained by including a music pedestals portion having a height such as to separate the music stand from the operating element.

[Action]

For example, after playing, if the lid is inadvertently left projecting to the operating position and the lid is closed, with the rotation of the lid, only the music stand legs do not come into contact with the operating elements,
It lands on the non-elemental part on the surface of the control panel. The music stand legs are
It has a height that separates the music stand upward from the operating element. Next, as the lid is further rotated until the performance operating section is completely closed, the leg section receives a pressing repulsive force from the control panel. Due to the pressing repulsive force, the music stand, which was initially in the operating position, is rotated near the standby position as the lid is closed.

As described above, according to the present invention, the music stand legs are provided, and only the legs land on the non-operation element portion on the surface of the control panel, and the music stand itself is separated from the operation element. Therefore, even when the lid is closed while the music stand is projected to the operating position, the music stand does not collide with the operation element of the control panel.

〔Example〕

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

FIGS. 1 and 2 show a music stand structure 10 in an electronic musical instrument according to an embodiment of the present invention. In these drawings, members designated by the same reference numerals as those in FIG. 5 are equivalent to those in FIG. It has a function. In the electronic musical instrument to which the present invention is applied, the keyboard 4 and the control panel CP having various control elements 2 such as knobs and switches are arranged side by side so that the lid 4 opens and closes the performance operating section 1. Has become. The lid 4 is rotatably attached by a shaft 3 behind the control panel CP.

In the music stand structure 10, the music stand 12 extends in the direction and length across the plurality of keys KY on the keyboard KB in the center of the lid 4. The music stand 12 has a lid 4 by means of a hinge 5.
A standby position which is attached to the inner surface of the lid 4 (hereinafter, the inner surface refers to the surface facing the performance operation unit 1 when the lid 4 is closed), and a standby position close to the inner surface of the lid 4; It is rotatable between an operating position that protrudes from it.
Incidentally, in FIGS. 1 and 2, the lid 4 is open and the music stand 12 is in the operating position.

As is clear from FIG. 3, a plurality of legs 13 spaced apart from each other in the longitudinal direction of the music stand 12 are integrally fixed to the inner surface of the music stand 12 by screws 14, for example. ing. Each leg 13 starts from the position adjacent to the hinge 5 from the music stand.
It extends so as to cross the inner side of 12 and its tip 13
It projects from the tip of the music stand 12 at a. In addition, when the lid 4 is closed on the performance operation unit 1 while the music stand 12 is inadvertently projected to the operating position,
The tip portion 13a is provided at a position such that it does not contact the operating element 2 and lands between the operating elements 2 on the upper surface of the control panel CP (where the operating element 2 does not exist). Therefore, the maximum width of the tip end portion 13a of each leg portion 13 is smaller than the interval between the operation elements 2. Furthermore, when the lid 4 is closed and the tip portion 13a lands on the control panel CP with the music stand 12 protruding as described above, the tip portion 13a is located at a height above the upper surface of the control panel CP. The operating element 2 is larger than the operating element 2 and protrudes upward from the operating element 2. With such a configuration, when the lid 4 is closed in the above-described state, only the leg portion 13 lands on the upper surface of the control panel CP where the operation element 2 does not exist, and the music stand 12 itself holds the leg portion 13. Since it is maintained in a state of being separated upward from the operating element 2 through the above, a situation in which the protruding music stand 12 collides with the operating element 2 and damages the operating element 2 is prevented.

Further, between the music stand 12 and the tip end portions 13a of the legs 13, a music score pressing lever 15 is provided to prevent the music score placed on the music stand 12 from sliding off the music stand 12. . Particularly, as clearly shown in FIG. 3, the musical score pressing lever 15 is attached by a bolt 17. The bolt 17
Is loosely penetrating the music score pressing lever 15, the locking plate 16, the compression spring 18 and the pressing plate 19, and the nut 20 presses the compression spring 18 against the locking plate 16 via the pressing plate 19 and compresses it. It is screwed to the bolt 17. The locking plate 16 is pressed against the music pressing lever 15 by the elastic force of the compression spring 18, and in cooperation with the head of the bolt 17, the music pressing lever 15 can be rotated with respect to the bolt 17. It is elastically sandwiched. Furthermore, the locking plate 16
4 has a substantially rectangular shape with tapered projections 16a and 16b formed at each corner, as shown in FIG. 4, and engages with the inner surface of the music stand 12 at both projections 16a on one side and the other side. By engaging the outer surface of the leg portion 13 with both projections 16b of the music stand 12
And the leg 13 are fixed. In this way, the locking plate 16 fixes the musical score presser 15 in a state where rattling does not occur. With the above structure, each music score holder
15 is manually operated to be rotatable between an operation position that projects from the outer surface of the music stand 12 to prevent the music score from slipping off and a standby position that retracts from the outer surface of the music stand 12. Has become.

Next, an example of the operation of the music stand structure 10 will be described with reference to FIG.

As shown in FIG. 1, it is assumed that the lid 4 is in the open position and the music stand 12 and the music press 15 are in the operating position as the initial state. In this state, the music stand 12 and the music presser 15 are not retracted to the standby position but are projected to the operating position, and the lid 4
When closing, the front end portion 13a of the leg portion 13 first lands on the elementless portion on the surface of the control panel CP where the operating element 2 does not exist. Further, as the lid 4 is completely rotated to the closed position, the leg portion 13 slides on the top surface of the control panel CP toward the keyboard KB at the tip portion 13a without contacting the operating element 2. Meanwhile, it is pressed outward by the control panel CP. The pressing force from the control panel CP is also applied to the music stand 12 via the tip portion 13a, and as a result, the music stand 12 is moved to the hinge 5
It gradually rotates toward the standby position through the, and when the lid 4 is completely closed, the cover 4 rotates near the standby position. Further, the musical score presser 15 is also rotated near the standby position by being pressed by the inner surface of the lid 4 as the musical score stand 12 is rotated to the standby position. In this way, even when the lid 4 is closed while the music stand 12 is projected to the operating position, the legs 13 slide between the operation elements 2 on the surface of the control panel CP or other non-element parts. Only, the music stand 12 does not collide with the operation element 2.

Needless to say, the present invention can be applied to the music stand 12 without the music presser 15. Also, the leg 13 is
The present invention is not limited to the above-mentioned embodiment as long as the music stand 12 can be prevented from colliding with the operating element 2 by landing on the non-element portion of the control panel CP surface.
The leg portion 13 may be, for example, a protrusion having an appropriate shape that integrally projects from the music stand 12.

[Effect of device]

As described above, according to the present invention, the music stand legs are provided, only the legs land on the non-elemental portion on the surface of the control panel, and the music stand itself is separated from the operation element. As a result, the present invention can easily and reliably prevent the music stand from colliding with the operation element of the control panel even when the music stand is closed while the music stand is projected to the operating position. Play.

[Brief description of drawings]

FIG. 1 is a side view showing a music stand structure in an electronic musical instrument according to an embodiment of the present invention, FIG. 2 is a front view of the same embodiment, and FIG. 3 is a mounting structure of a music pressing lever in the same embodiment. 4 is a front view showing a locking plate for fixing the lever in the lever mounting structure, and FIG. 5 is a side view for explaining the problem of the music stand in the conventional electronic musical instrument. 1 ... Performance operation part, 2 ... Operation element, 4 ... Lid, 12 ... Music stand, 13 ... Music stand leg, CP ... Control panel.

Claims (1)

(57) [Scope of utility model registration request] 1. An electronic musical instrument having a rotatable lid that opens and closes a performance operating section, which comprises a control panel having various operation elements projecting from its surface, wherein the operating section of the lid is closed when the performance operating section is closed. Attached to the facing surface of the operating portion facing to the operating position of the lid projecting from the facing surface of the lid so that the musical score can be placed with the lid open, and a standby position for retracting toward the facing surface of the operating portion. A music stand that is rotatable between a position and the music stand, and the operating element on the surface of the control panel when the music stand is integrally attached to the music stand and the lid is closed while the music stand is projected to the operating position. Is provided so as to land on a non-elemental portion where there is no object, and has a height that separates the music stand from the operation element in the state of landing on the non-elemental portion. It was and a Mendaiashi part, music stand structure in an electronic musical instrument.