JP3877853B2 - Keyboard instrument lid support device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a support device for a lid of a keyboard instrument such as an electronic keyboard instrument.
[0002]
[Prior art]
A conventional keyboard instrument lid support structure will be described with reference to FIGS. 3 and 4. FIG. In the example shown in the figure, an electronic keyboard instrument is shown as an example. In the electronic keyboard instrument, the overall shape is a flat rectangular box shape, an opening is formed in one long side portion of the flat surface, and the keyboard 11 is disposed in this opening portion. An operation panel 12 is disposed behind the keyboard 11, and a ceiling plate 13 is placed on the operation panel 12. An electronic circuit instrument (not shown) is stored in a vacant space 14 (see FIG. 4) formed in the lower part of the keyboard 11 and the lower part of the ceiling board 13 to constitute an electronic keyboard instrument.
[0003]
Side plates 15 called side boards are disposed on both sides of the keyboard 11 in the arrangement direction, and the ceiling plate 13 is supported by the side plates 15. Guides 16 are mounted on the side plates 15 on the surfaces facing each other. The guide 16 is provided to pull out the lid 18 stored in the horizontal position while pulling out the lid 18 stored below the ceiling plate 13 while supporting the front end of the lid 18.
[0004]
That is, the lid 18 is supported by both guides 16 and 17 at the front end 18A and the rear end 18B of the lid 18 as shown in the figure, and is mounted so as to slide while maintaining a horizontal posture by these guides 16 and 17. . Therefore, the guide 16 that supports the front end side of the lid 18 is referred to as a front guide, and the space between the guides that support the rear end side is referred to as a rear guide 17. The rear guide 17 is constructed by laying a rack 17A in the horizontal direction, and a pinion 17B is provided in mesh with the space A between the racks. The shaft passing through the pinion 17B is extended over the entire width of the lid 18, and pinions 17B are mounted on both ends of the shaft. The pinions 17B are engaged with the racks 17A mounted on the side plates 15, respectively. The shaft passing through the pinion 17B is rotatably supported by the lid 18. When the lid 18 is pulled out by the rack 17A and the pinion 17B, the lid 18 is prevented from meandering.
[0005]
[Problems to be solved by the invention]
As described above, conventionally, the lid 18 of the electronic keyboard instrument is opened and closed while maintaining a horizontal posture. In the closed state, the lid 18 covers the top of the keyboard 11 and pushes the lid 18 forward to open the lid 18. Can be moved.
Conventionally, the front guide 16 and the rear guide 17 are integrally formed. For this reason, when manufacturing musical instruments having different depth dimensions W, the front guide 16 and the rear guide 17 must have various dimensions J according to the difference in the depth dimension W. .
[0006]
An object of the present invention is to propose a lid support device for a keyboard instrument in which the front guide 16 and the rear guide 17 can be constituted by common parts even if the depth dimension W is different.
[0007]
[Means for Solving the Problems]
According to the present invention, there is provided a keyboard instrument lid support device in which the front guide and the rear guide are configured as separate members, and the mounting position of the front guide and the rear guide can be changed to cope with the difference in the depth dimension W. To do.
Therefore, according to the present invention, even when manufacturing keyboard instruments having various depth dimensions W, the common front guide and rear guide can be used for all musical instruments, thereby reducing the manufacturing cost. can get.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 show an embodiment of a lid support device for a keyboard instrument according to the present invention. FIG. 1 shows a state in which a lid support device according to the present invention is mounted on a musical instrument having a large depth dimension W. FIG. 2 shows a state in which the lid support device according to the present invention is attached to an instrument having a small depth dimension W.
[0009]
The present invention is characterized in that the front guide 16 and the rear guide 17 are constituted by separate members.
FIG. 1 shows a musical instrument having a large depth dimension W. In the case of a musical instrument having a large depth dimension W, the front guide 16 and the rear guide 17 are mounted on the side plate 15 without overlapping the ends of the front guide 16 and the rear guide 17.
[0010]
On the other hand, in the case of an instrument having a small depth dimension W, as shown in FIG. 2, the ends of the front guide 16 and the rear guide 17 overlap each other by a dimension L, and the front guide 16 extends from the front end of the rear guide 17. The dimension J up to the rear end is made smaller than the state shown in FIG. 1, so that it can be adapted to an instrument with a small depth dimension W.
In this case, the front guide 16 is formed with a bulge 16 </ b> A that protrudes upward near the end on the side facing the rear guide 17. By allowing the bulge 16A to enter the lower side of the rear guide 17 as shown in FIG. 2, there is an advantage that the posture of the lid 18 can be kept horizontal in the state shown in FIG. 1 and the state shown in FIG. It is done.
[0011]
【The invention's effect】
As described above, according to the present invention, the support device that supports the opening and closing of the lid is configured by the same components even for keyboard instruments having different shapes only by preparing the front guide 16 and the rear guide 17 having the same shape. be able to. Therefore, there is an advantage that the manufacturing cost can be reduced by sharing the parts.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an example in which the present invention is applied to a musical instrument having a large depth dimension.
FIG. 2 is a sectional view showing an example in which the present invention is applied to a musical instrument having a small depth dimension.
FIG. 3 is a perspective view for explaining an open / close support structure of the entire lid of a keyboard instrument.
FIG. 4 is a cross-sectional view for explaining a conventional keyboard musical instrument lid support device;
[Explanation of symbols]
11 keyboard 12 operation panel 13 ceiling plate 14 vacant space 15 side plate 16 front guide 17 rear guide 18 lid W depth dimension

Claims (1)

A. A pair of side plates arranged at both ends of the keyboard;
B. A front guide that protrudes from the mutually opposing surfaces of the side plate, supports the front end of the lid stored behind the keyboard, and slides in a state in which the posture of the lid is held almost horizontally;
C. A rear guide disposed behind the keyboard and horizontally guiding the rear end of the lid;
A keyboard instrument lid support device comprising:
The front guide and the rear guide are configured as separate members, and the front guide has a bulge that protrudes upward on the side facing the rear guide, and the rear guide side of the front guide. The front guide is moved by moving the end of the front guide away from the ceiling plate of the keyboard instrument, and a part of the bulge of the front guide enters the lower side of the rear guide. The amount of overlap between the rear guide and the rear guide is changed and attached to the side plate, so that the posture in the state where the lid is stored can be kept horizontal, and it is common for keyboard instruments with different depths. In addition, the lid support device for a keyboard instrument is characterized in that a front guide and a rear guide can be used.

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