JPH0631514Y2 - Keyboard instrument controller mounting structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a controller mounting structure for a keyboard instrument, and more particularly, to a controller that can be stably and reliably fixed to a storage position and a withdrawal position.

[Conventional technology]

Conventionally, as a device related to the present invention, for example, SAIKAI Sho 54-5
A "mounting device for recording / playback device in an automatic musical instrument playing device" disclosed in Japanese Patent No. 3424 is known. This is a recording / reproducing apparatus in an automatic musical instrument playing apparatus which is attached to a piano or the like to obtain an automatic performance, and the recording / reproducing apparatus is arranged so that it can be freely moved in and out of a position where it does not interfere with manual performance of the piano or the like. It is a thing. Then, as a concrete configuration of the insertion and withdrawal, a method by rotation and a method by slide are shown.

[Problems to be solved by the invention]

However, although such a conventional device is easy to put in and out, it is structurally complicated and has a large number of parts due to the provision of a locking mechanism or a panda graph mechanism, and mounting work is troublesome. However, there is an inconvenience that it cannot be locked securely in the storage position and the withdrawal position, and is easy to move.

[Means for solving problems]

The controller mounting structure of the keyboard musical instrument according to the present invention has been made to solve the above-mentioned problems, and a controller for electrically controlling the keyboard musical instrument can be freely inserted into and removed from the lower surface of the shelf of the musical instrument body by a slide mechanism. The slide mechanism includes a guide member that has a guide groove and is provided on the lower surface of the shelf or on the controller, and a protrusion that slidably fits into the guide groove. With a controller or a slide member arranged on the lower surface of the shelf board,
The protrusion has (1) necks at both ends,
(2) Part of the plate thickness is formed thinner than that of the other part, and elastic pieces are provided at least at the front and rear ends of the guide groove to elastically press or clamp the neck of the protrusion. Is integrally formed with the guide member.

[Action]

In this invention, since the slide mechanism is composed of the guide member and the slide member, and the elastic piece is integrally provided on the guide member, the structure is extremely simple, the number of parts is small, and the elastic piece is used. The controller can be securely fixed to the storage position and the pull-out position. Also,
Since the projection of the slide member is formed so that a part of the plate is thinner than the other part, friction between the projection and the guide groove is reduced, and the controller can be easily taken in and out.

〔Example〕

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 1 is a front view showing an embodiment in which the present invention is applied to a vertical piano, FIG. 2 is an exploded perspective view showing a mounting structure of a controller, and FIG. 3 is a schematic cross-sectional view of the mounting structure. is there.

In these figures, reference numeral 1 is a vertical piano having a built-in automatic performance device (or electronic sound source unit) (not shown) in which a key 2 is driven by a solenoid, and is a shelf which constitutes a musical instrument body 3 of the piano 1. A controller 6 for sending a signal to the automatic performance device (or electronic sound source unit) to drive and control the automatic performance device (or electronic sound source unit) is disposed on the lower surface of the plate 4 by a slide mechanism 7 which will be described later so as to be able to move in and out and an input / output terminal panel. 8 is provided, and further, a pair of left and right speakers 10 and 11 are provided on the lower front plate 9. Here, in the case of the present embodiment, the controller 6 reads and reproduces the performance information from a ROM (read-on memory) cartridge 12 in which the performance information is recorded, and controls the drive of the automatic performance device by this reproduction signal. However, in the case where the electronic sound source unit is built in, the unit is driven and controlled,
An electronic sound should be generated. As a mounting position of the controller 6, it is arranged at a position that does not interfere with manual playing, for example, at a high-pitched end, is drawn out to the front of the shelf board 4 when in use, and is stored along the lower surface of the shelf board 4 when not in use. To be done.

The slide mechanism 7 of the controller 6 includes a pair of left and right slide members 20 attached to both side surfaces of the controller 6, and a pair of left and right guide members 21 that slidably hold the slide members 20 in the front-rear direction. And each guide member 21 has a pair of front and rear mounting brackets 22A, 22
It is fixed to the bottom of the shelf board via B.

In FIG. 2, 23 is a set screw, 24 is a speed screw, 2
5 is a bottom plate.

The details of the slide member 20 will be described with reference to FIGS. 4 and 5. The slide member 20 is a slender plate-shaped base 20A and a ridge body integrally provided on the surface of the base 20A.
It is composed of 20B and. The ridges 20B are formed to be long in the longitudinal direction of the base 20A, and have circular portions 26 (26a, 26a) at their front and rear ends.
b) and the neck portion 27 (27a, 27b) are provided respectively, the front and rear end portions have a mossy shape in front view, and the front and rear end surfaces are inclined to reach the tip. The plate thickness is gradually decreasing.

The structure of the guide member 21 will be described in detail with reference to FIGS. 6 and 7. The guide member 21 is integrally formed of a plastic material such as ABC, and the inner surface thereof, that is, the slide member 20 is opposed to the guide member 21. A guide groove 31 into which the ridge body 20B is slidably fitted is formed on the surface 30 to extend over substantially the entire length of the slide member 20. Also,
At the front and rear ends of the guide member 21, a pair of circular holes 32 and 33, which communicate with both ends of the guide groove 31 and into which the circular portion 26 of the ridge body 20B can fit, and the guide groove 31 are sandwiched. A pair of upper and lower elongated holes 34, 35, 36, 37 facing each other are formed so as to penetrate therethrough. One ends of the long holes 34, 35 communicate with the circular hole 32, and the thin portions 39, 40 left between the long holes 34, 35 and the guide groove 31 define the front end portion of the ridge body 20B. It constitutes an elastic piece that elastically clamps. Since the elastic pieces 39, 40 are provided in a substantially V-shape, the distance d ₁ between the tip portions is set to be smaller than the groove width D of the guide groove 31. Similarly, long hole 3
One end of each of the holes 6 and 37 communicates with the circular hole 33, and a thin portion 41 between the long holes 36 and 37 and the guide groove 31.
Reference numeral 42 denotes an elastic piece that elastically holds the ridge body 20B. Since the elastic pieces 41, 42 are also provided in a substantially C-shape, the distance d ₁ between the tip portions is set to be smaller than the groove width D of the guide groove 31.

In the slide mechanism 7 having such a configuration, when the controller 6 is pulled out forward from the lower surface of the shelf board or conversely is housed on the lower surface of the shelf board, the ridges 20 of the slide member 20.
B slides along the guide groove 31 of the guide member 21, and the rear end side circular portion 26b of the ridge body 20B fits into the rear end side circular hole 33 of the guide groove 31 at the time of storage, and at the time of pulling out. The front end side circular portion 26a fits into the front end side circular hole 32. Also,
When stored, the pair of elastic pieces 41, 42 are arranged on the ridge body 26.
The rear end of the rear is elastically clamped from the vertical direction. At this time, the tips of the elastic pieces 41, 42 are engaged with the rear end side neck portion 27b of the ridge body 20B. Therefore, the ridge body 20B, in other words, the controller 6 is securely fixed to the storage position, and there is no risk of unexpected movement.

On the other hand, at the time of pulling out, the pair of elastic pieces 39, 40 elastically clamp the front end portion of the ridge body 20B in the vertical direction, and the tips of the elastic pieces 39, 40 have front end side neck portions of the ridge body 20B. Since it engages with 27a, the controller 6 can be stably and reliably fixed to the pull-out position even in this case, and it is prevented from moving unexpectedly.

The slide mechanism 7 includes a slide member 20 and a guide member 21, and the guide member 21 itself has a ridge body.
Since the elastic pieces 34 to 37 for holding the 20B are integrally provided, it is not necessary to dispose a spring, the number of parts can be minimized, and the assembling work is simple and easy.

8 and 9 are a front view and a sectional view taken along the line IX-IX showing another embodiment of the guide member. In this embodiment, the groove bottom surface 31a of the guide groove 31 has its front end, rear end, and central portion,
Tongue-shaped elastic pieces 50 to 53 for urging the ridge body 20B in a direction projecting from the guide groove 31 are provided respectively.

Even in such a configuration, the elastic pieces 50, 51 (or 5
2, 53) press the ridge 20B, the controller can be prevented from moving and can be securely fixed to the storage position or the withdrawal position, as in the above embodiment.

FIG. 10 is a front view of a main portion of a guide member showing a modified example of the elastic piece. In this embodiment, a substantially U-shaped insertion hole 60 that surrounds the end of the guide groove 31 is formed, and the substantially U-shaped thin portion 61 that separates the insertion hole 60 and the guide groove 31 is an elastic piece. Also, the ridge body 20 is provided on the inner surface of the bent portion of the elastic piece 61.
Engagement portions 62a and 62b that engage with the neck portion 27a (or 27b) of B are provided. Distance d ₃ of the engaging portion 62a and 62b is set smaller than the groove width D.

FIG. 11 is a front view of a main portion of a guide member showing another modification of the elastic piece. This embodiment is similar to the embodiment shown in FIG. 6, and a pair of upper and lower elastic pieces 71, 72 are formed by a substantially E-shaped insertion hole 70 surrounding the end portion of the guide groove 31.
Is provided.

Although the above embodiment has been described with respect to the case of being applied to a vertical piano, the present invention is not limited to this and can be applied to a general electric piano, in which case the performance volume is adjusted by the controller 6. You can do it like this.

In the above embodiment, the controller 6 has the slide member 20.
Although the case where the guide member is provided on the lower surface of the shelf board has been described above, the reverse order may be applied.

[Effect of device]

As described above, according to the controller mounting structure of the keyboard instrument according to the present invention, the structure of the slide mechanism for holding the controller in and out is extremely simple, the number of parts is small, the assembling work is easy, and the elastic piece is used. Therefore, the controller can be securely fixed to the storage position and the withdrawal position, and the rattling and movement thereof can be prevented. Further, since the protruding member of the slide member is formed such that part of the plate thickness thereof is thinner than other portions, friction between the protruding member and the guide groove is reduced, and the controller can be easily taken in and out.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment in which the present invention is applied to a vertical piano, FIG. 2 is an exploded perspective view showing a mounting structure of a controller, and FIG. 3 is a schematic cross-sectional view of the mounting structure. 4 and 5 are a front view and a plan view showing an embodiment of the slide member, and FIGS. 6 and 7 are a front view and an enlarged sectional view taken along the line VII-VII of the guide member according to the embodiment. 8 and 9 are a front view and a sectional view taken along the line IX-IX showing another embodiment of the guide member, and FIGS. 10 and 11 are front views of a main part of the guide member showing another embodiment of the elastic piece, respectively. It is a figure. 3 ... Instrument body, 4 ... Shelf plate, 6 ... Controller, 7 ... Sliding mechanism, 20 ... Sliding member, 20B ... Ridge member, 21 ... Guide member, 31 ... Guide groove, 39- 42 ... Elastic piece, 50-53, 61, 71, 72 ... Elastic piece.

Claims (1)

[Scope of utility model registration request] 1. A controller for electrically controlling a keyboard musical instrument is disposed on a lower surface of a shelf plate of a musical instrument body so as to be able to move in and out by a slide mechanism, and the slide mechanism has a guide groove, The controller includes a guide member, and a projection member slidably fitted in the guide groove, and a slide member provided on the lower surface of the controller or the shelf plate. (1) The protrusions have necks at both ends, and (2) a part of the plate thickness is formed thinner than the other part, and the protrusions are provided at least at the front and rear ends of the guide groove. A controller mounting structure for a keyboard instrument, characterized in that an elastic piece for elastically pressing or sandwiching the neck portion is formed integrally with the guide member.