JPH11282457A - Keyboard instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a thin sheet shaped object such as a paper sheet from entering a case body through a clearance of the decoration plate and the fallboard of a keyboard instrument. SOLUTION: This keyboard instrument is provided with a keyboard 2 where plural keys are arranged side by side, with the case body for housing the keyboard device 2 and with a fallboard 3 to move back and forth on the keyboard device 2 to open and close a keyboard and to be housed inside the case body at the time of using the keyboard, wherein the fallboard 3 is equipped with a stopper 15 with an almost U shaped cross section having a folded-over part on the front side at the upper part of the rear end of the fallboard 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard instrument having a sliding keyboard cover.

[0002]

2. Description of the Related Art In a keyboard instrument, in order to prevent dust from adhering to the keyboard when not in use and to protect the keyboard,
It is common to equip a pivotable or sliding keyboard cover. Among them, the slide-type keyboard lid is stored inside the keyboard instrument housing when using the keyboard, so the upper surface of the keyboard instrument housing is used to operate peripheral equipment such as a sequencer. It is widely used because it can be easily mounted and is excellent in function and also excellent in design.

FIGS. 6 and 7 are schematic structural views showing a conventional example of a keyboard instrument having a sliding keyboard cover. In FIG. 6, a keyboard device 2 having a plurality of keys arranged side by side is fixed to a bottom plate 1 by a fixing member (not shown). A side plate 5 joined to the bottom plate 1 and covering both side surfaces of the keyboard device 2; a top plate 4 between the two side plates and having a decorative plate 17 inclined rearward behind the keyboard device 2; And a rear plate 21 joined to form a housing.

A slide groove 12 is provided on each of the opposing surfaces of the side plate 5, and the slide groove 12 supports shafts 6 attached to both sides of the keyboard cover 3. Guides 9 for slidingly guiding the front portion of the keyboard cover 3 are provided on both side plates 5 so that the keyboard cover 3 can be smoothly guided on the upper surface of the keyboard device 2 so as to be opened and closed. .

[0005] The decorative plate 17 is formed so as to minimize the gap between the keyboard cover 3 and the upper surface plate 4, and is a diagram for preventing the upper surface of the keyboard cover 3 from being scratched when the keyboard cover 3 is opened and closed. The cushion material is not fixed.

Since the cover 3 is long in the frontage direction, the cover 3
In order to prevent warping of the paper and to prevent a piece of paper or the like from entering the housing through a gap between the decorative plate 17 and the keyboard cover 3,
A stopper member 14 having a substantially L-shaped cross section is attached to the upper part of the rear end of the keyboard cover 3.

FIG. 6 is a schematic diagram of the keyboard instrument shown in FIG.
This is a conventional example in which the sliding mechanism of the slide-type keyboard lid of the keyboard instrument described above is different from that of the first embodiment. In FIG. 7, rack gears 10 are provided on respective opposing surfaces of the side plate 5,
In the rack gear 10, a shaft 7 is inserted into a bearing portion 8 provided in a bearing holding portion 13 attached to a rear portion of the keyboard cover 3, and pinion gears 11 are attached to both ends of the shaft 7 to mesh with the rack gear 10.

Due to this meshing, the amount of movement of the keyboard lid 3 in the front-rear direction on the left and right is made the same, so that no matter where the keyboard lid 3 is operated in the frontage direction, the difference in the amount of movement of the keyboard lid 3 on the left and right is The opening and closing can be performed smoothly by preventing the occurrence of catching. A stopper member 14 having a substantially L-shaped cross section is attached to the upper portion of the rear end of the keyboard cover 3 to prevent the keyboard cover 3 from warping, and to insert a paper sheet from the gap between the decorative plate 17 and the keyboard cover 3. Are prevented from entering the housing.

[0009]

Problems that occur in a keyboard instrument having the above-mentioned sliding keyboard cover will be described with reference to the schematic configuration diagram of FIG.

In FIG. 8, a gap required for sliding the keyboard cover 3 is provided between the decorative plate 17 provided at the lower front portion of the upper plate 4 and the keyboard cover 3. When the keyboard cover 3 is closed, a thin sheet-like material such as a piece of paper 18
Since it is possible to enter the housing through the gap between the keyboard cover 7 and the keyboard cover 3, a stopper member 14 having a substantially L-shaped cross section is attached to the upper part of the rear end of the keyboard cover 3 so as not to enter the housing. I have to.

However, if the thin sheet-like material such as the paper piece 18 is further pushed in, or if the tip of the thin sheet-like material such as the paper piece 18 is slightly bent upward, the stopper member 14 gets over the stopper member 14 and the inside of the housing is removed. There is a problem that the thin sheet-shaped material such as the paper piece 18 cannot be taken out from the housing.

Therefore, an object of the present invention is to prevent a thin sheet-like material such as a paper sheet from entering a housing through a gap between a decorative plate and a keyboard cover.

[0013]

Therefore, in the keyboard musical instrument according to the first aspect of the present invention, a keyboard device having a plurality of keys arranged side by side, a housing for accommodating the keyboard device, and a back and forth position on the keyboard device. To open and close the keyboard, and a keyboard instrument having a keyboard lid housed in the housing when the keyboard is used, wherein the keyboard lid has a cross-sectional shape that is folded forward on the upper side of the rear end of the keyboard lid. Is provided with a substantially U-shaped or substantially U-shaped stopper member.

According to a second aspect of the present invention, in the keyboard instrument of the first aspect, the stopper member has a length extending on both side surfaces of the keyboard cover. .

According to a third aspect of the present invention, there is provided a keyboard musical instrument having a plurality of keys arranged side by side, a housing for accommodating the keyboard apparatus, and moving the keyboard back and forth on the keyboard apparatus to open and close the keyboard. ,
A keyboard cover housed in the housing when the keyboard is used, guide means provided on opposite sides of the housing for guiding forward and backward movement of the keyboard cover, and the keyboard engaged with the guide means; In a keyboard instrument having a moving means for moving a lid back and forth, the keyboard lid has a substantially U-shaped or U-shaped cross-section with a folded front side and a length extending over both side surfaces of the keyboard lid. And the moving means is integrally formed and attached to the rear end of the keyboard cover.

Therefore, the upper end of the rear end portion of the keyboard cover is provided with a stopper member having a substantially U-shaped cross-sectional shape which is folded back toward the front side. A thin sheet such as a piece of paper that is going to enter the body can be caught without going over the stopper member and can be prevented from entering the housing.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a keyboard musical instrument according to the present invention will be described with reference to the schematic configuration diagram of FIG. 1 and a thin sheet-like material such as a piece of paper of FIG. A description will be given based on a schematic configuration diagram showing a state when an attempt is made to put it in a housing. 1 and 2 are schematic structural views of one side plate removed and viewed from the side.

1 and 2, a keyboard device 2 having a plurality of keys arranged side by side is provided with a bottom plate 1 by a fixing member (not shown).
Is fixed to. A side plate 5 joined to the bottom plate 1 and covering both side surfaces of the keyboard device 2, and a keyboard device 2
Upper surface plate 4 having a decorative plate 17 inclined rearward behind
And a rear plate 21 joined to the bottom plate 1 and the side plate 5 to form a housing.

A slide groove 12 is provided on each of the opposing surfaces of the side plate 5, and the slide groove 12 supports shafts 6 attached to both sides of the keyboard cover 3. Guides 9 for slidingly guiding the front portion of the keyboard cover 3 are provided on both side plates 5 so that the keyboard cover 3 can be smoothly guided on the upper surface of the keyboard device 2 so as to be opened and closed. .

The decorative plate 17 is formed so as to minimize the gap between the keyboard cover 3 and the top plate 4, and is a diagram for preventing the upper surface of the keyboard cover 3 from being scratched when the keyboard cover 3 is opened and closed. The cushion material is not fixed.

In order to prevent a thin sheet-like material such as a piece of paper from entering the housing from the gap between the decorative plate 17 and the keyboard cover 3, and to prevent the keyboard cover 3 that is long in the frontage direction from warping, A stopper member 15, which is made of an aluminum material having a substantially U-shaped cross section with a folded portion on the front side and having a length extending on both side surfaces of the keyboard cover 3, is attached to an upper portion of the rear end of the keyboard cover 3.

A state in which a thin sheet such as a piece of paper or the like is to be inserted into the housing from the gap between the decoration plate and the keyboard cover will be described with reference to the schematic configuration diagram shown in FIG. In FIG. 2, when the cover 3 is closed and a thin sheet-like material such as a piece of paper 18 is inserted through a gap between the decorative plate 17 and the cover 3, the stopper member attached to the cover 3 is attached. Hits 15.

When the paper piece 18 is further pushed in, the paper piece 18 and the like are turned up. However, since the stopper member 15 has a substantially U-shaped cross-sectional shape with a folded back side, the paper piece 18 and the like are folded back. Also, it does not get caught in the folded portion on the front side of the stopper member 15 and cannot enter any more, and does not get over the stopper member 15 and enter the housing.

FIG. 3 is a schematic structural view of a keyboard instrument according to a second embodiment in which the cross-sectional shape of the stopper member in the first embodiment is changed. Portions similar to those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In FIG.
A stopper member 16 is formed on an upper portion of the rear end of the keyboard cover 3 and is made of an aluminum material having a substantially U-shaped cross section with a folded portion on the front side and having a length extending on both side surfaces of the keyboard cover 3. .

Therefore, when a thin sheet-like material such as a piece of paper 18 is to be inserted from the gap between the decorative plate 17 and the keyboard cover 3, as in the first embodiment, it hits against the stopper member 16 and the stopper member 16 is moved. There is no possibility of getting over and entering the housing.

FIG. 4 is a schematic diagram of a keyboard instrument according to a third embodiment in which a stopper member having a substantially U-shaped cross section in the first embodiment is formed integrally with a moving means. Portions similar to those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In FIG. 4, a rack gear 10 is provided on each of the opposing surfaces of the side plate 5. Then, a bearing portion 8 through which the shaft 7 is inserted, a bearing holding portion 13 that holds the bearing portion 8, and a stopper member 19 having a substantially U-shaped cross section are integrally formed, and extend over both side surfaces of the keyboard cover 3. It has a length and is attached to the rear end of the keyboard cover 3. The stopper member 19 can be integrally molded with a length extending over both side surfaces of the keyboard cover 3 by extrusion molding using an aluminum material or the like.

The bearing holding portion 13 has a bearing portion 8 extending downward from a lower portion of a rear end portion of the keyboard cover 3 and has a bearing portion 8.
The pinion gear 11 is attached to both ends of the shaft 7 and meshes with the rack gear 10 described above.
Due to this meshing, even if the keyboard 3 is moved in the front-to-rear direction in the left and right directions at any position in the front-to-rear direction, the trapping caused by the difference in the left and right movements of the keyboard 3 can be performed regardless of the position in the frontage direction. And can be opened and closed smoothly.

Above the rear end of the keyboard cover 3, there is provided a stopper member 19 having a substantially U-shaped cross section and having a folded front side. Is prevented from getting over the stopper member 19 and entering the housing.

FIG. 5 is a schematic diagram showing the configuration of a keyboard instrument according to the third embodiment of the present invention.
This is a fourth embodiment in which the cross-sectional shape of No. 9 is a substantially U-shaped cross-sectional shape having a turn on the front side, similarly to the second embodiment. Portions similar to those of the third embodiment are denoted by the same reference numerals, and description thereof is omitted.

In FIG. 5, a stopper member 20 attached to the rear end of the keyboard cover 3 has a substantially U-shaped cross section, and is formed integrally with the bearing holding portion 13.
It has a length that covers both sides of the keyboard cover 3.

The bearing holding portion 13 has a bearing portion 8 extending downward from a lower portion of a rear end portion of the keyboard cover 3 and has a bearing portion 8.
The pinion gear 11 is attached to both ends of the shaft 7 and meshes with the rack gear 10 described above.
Due to this meshing, even if the keyboard 3 is moved at the same position in the front-to-rear direction in the front-rear direction on the left and right sides of the keyboard 3, the catch generated due to the difference in the left and right movements of the keyboard 3 regardless of the position in the frontage direction. And can be opened and closed smoothly.

Above the rear end of the keyboard cover 3, there is provided a stopper member 20 having a substantially U-shaped cross section and having a folded front side. Are prevented from getting over the stopper member 20 and entering the housing.

[0034]

According to the present invention, since a stopper member having a folded back is provided on the upper portion of the rear end portion of the keyboard cover, a thin sheet-like sheet such as a piece of paper is formed from the gap between the decorative plate and the keyboard cover. Things can be kept out of the housing.

Further, since the stopper member is attached to the keyboard cover so as to have a length extending on both side surfaces of the keyboard cover, it is possible to prevent warpage occurring in the frontage direction of the keyboard cover.

Further, the bearing part and the stopper member of the moving means for moving the keyboard back and forth can be constituted by one component, so that the work time at the time of mounting can be shortened.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a keyboard instrument according to a first embodiment of the present invention, viewed from a side with one side plate removed.

FIG. 2 is a schematic configuration diagram showing a state in which a thin sheet-like material such as a piece of paper in the first embodiment of the present invention is to be put into a housing through a gap between a decorative plate and a keyboard cover.

FIG. 3 is a schematic configuration diagram of a keyboard instrument according to a second embodiment of the present invention, as viewed from a side surface with one side plate removed.

FIG. 4 is a schematic configuration diagram of a keyboard instrument according to a third embodiment of the present invention, viewed from a side with one side plate removed.

FIG. 5 is a schematic configuration diagram showing a keyboard instrument according to a fourth embodiment of the present invention as viewed from a side surface with one side plate removed.

FIG. 6 is a schematic configuration diagram showing a conventional example of a keyboard instrument having a sliding keyboard cover.

FIG. 7 is a schematic configuration diagram showing another conventional example of a keyboard instrument having a sliding keyboard cover.

FIG. 8 is a schematic configuration diagram illustrating a problem that occurs in a conventional example.

[Explanation of symbols]

Reference Signs List 1 bottom plate 2 keyboard device 3 keyboard cover 4 top plate 5 side plate 6 shaft 7 shaft 8 bearing portion 9 guide 10 rack gear 11 pinion gear 12 slide groove 13 bearing holding portion 14 stopper member 15 stopper member 16 stopper member 17 decoration plate 18 paper piece 19 stopper Member 20 Stopper member 21 Rear plate

Claims (3)

[Claims] 1. A keyboard device having a plurality of keys arranged side by side, a housing for accommodating the keyboard device, a keyboard which is moved back and forth on the keyboard device to open and close the keyboard, and is stored in the housing when the keyboard is used. Wherein the keyboard cover has a stopper member having a substantially U-shaped or U-shaped cross-sectional shape with a folded portion on the front side above the rear end of the keyboard cover. Characteristic keyboard instrument. 2. The keyboard musical instrument according to claim 1, wherein said stopper member has a length extending over both side surfaces of said keyboard lid. 3. A keyboard device having a plurality of keys arranged side by side, a housing for accommodating the keyboard device, a keyboard that is moved back and forth on the keyboard device to open and close the keyboard, and is stored in the housing when the keyboard is used. A cover, guide means provided on opposite sides of the housing for guiding the back and forth movement of the cover, and a moving means for engaging the guide means and moving the cover back and forth. In the keyboard musical instrument having the keyboard cover, the stopper member having a length turned over on both sides of the keyboard cover has a substantially U-shaped or U-shaped cross-sectional shape with a folded back side, and the moving means. Is integrally formed and attached to the rear end of the keyboard cover.