JP2540054Y2 - Keyboard switch mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a keyboard switch mounting structure for an electronic organ, for example.

(Prior Art) Conventionally, for example, as shown in FIGS. 3 and 4, a keyboard switch mounting board d is screwed at one end to a metal frame c on which a keyboard b is assembled as shown in FIGS. (E) By being stopped, it is sandwiched and mounted between the metal frame c and the keyboard switch mounting board d.

(Problem to be Solved by the Invention) The mounting structure of the keyboard switch a described above is simple. However, when the key f is pressed down to apply a load to the keyboard switch a, the keyboard switch mounting board d becomes a cantilever. Since bending occurs, the operation of the keyboard switch a is delayed, and there is a problem that the sound generation timing is delayed.

An object of the present invention is to solve such a conventional problem.

Means for Solving the Problems In order to achieve the above object, the present invention provides a mounting structure of a keyboard switch operated by a key of a keyboard assembled on a metal frame, wherein the metal frame has a hole and the hole. A T-shaped cut-and-raised piece that is continuous with the edge of the metal switch and cut and raised below the metal frame is formed, a notch at one end of the keyboard switch mounting board is locked to the T-shaped cut-and-raised piece, and the other end is formed as A keyboard switch screwed to a metal frame and projected from the hole above the metal frame is sandwiched between the metal frame and the keyboard switch mounting board.

(Operation) When a key is pressed, a load is applied to the keyboard switch mounting board via the keyboard switch, but the other end of the keyboard switch mounting board, which is screwed at one end to the metal frame, has a T-shaped cut and raised piece of the metal frame. Because it is locked to
The keyboard switch mounting board does not easily bend, and sound is generated at a predetermined timing.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

1 and 2, reference numeral 1 denotes a keyboard switch integrally formed with a plurality of pieces (only one is shown in the drawings), 2 denotes a metal frame on which a keyboard is assembled, and 3 denotes a keyboard switch board.

The keyboard switch 1 is, for example, a plate-like member 1a connected to another keyboard switch and provided with fixed contacts (not shown).
And a rubber cup-shaped member 1b fixed thereto and having a movable contact (not shown) disposed therein. A through hole 5 and a T-shaped cut-and-raised piece 6 are formed in a position corresponding to each key 4 in the metal frame 2, and the T-shaped cut and raised piece 6 is cut and raised downward. The keyboard switch board 3 is common to the keyboard switches 1, and a notch 7 is formed at a position corresponding to the T-shaped cut and raised piece 6 of the metal frame 2. A plurality of keyboard switches 1 are respectively inserted through the through holes 5 of the metal frame 2 from below, the plate-like members 1a are attached to the lower surface of the metal frame 2, and the notches 7 of the keyboard switch board 3 are cut and raised in a T-shape. The plurality of keyboard switches 1 are clamped and fixed between the keyboard switch mounting board 3 and the metal frame 3 by fitting and locking to the piece 6 and screwing the other end to the protruding portion 8 of the metal frame 2.

In the above embodiment, a plurality of keyboard switches 1 are integrated, and the keyboard switch board 3 is shared by a plurality of keyboard switches 1. However, it is possible to use separate keyboard switches 1 and keyboard switch boards 3 respectively. Of course.

(Effects of the Invention) Since the present invention has the above-described configuration, it has effects such as a simple structure, easy assembling, and no delay in sounding timing.

[Brief description of the drawings]

1 is a side view of one embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, FIG. 3 is a side view of a conventional example, and FIG. 4 is an enlarged side view of a main part thereof. DESCRIPTION OF SYMBOLS 1 ... Keyboard switch 2 ... Metal frame 3 ... Keyboard switch board 6 ... T-shaped cut-out piece 9 ... Screw

Claims (1)

(57) [Scope of request for utility model registration] 1. A mounting structure for a keyboard switch operated by a key of a keyboard assembled on a metal frame, wherein a T-shaped cut is formed in the metal frame, the hole being connected to an edge of the hole and being cut and raised below the metal frame. A raised piece is formed, a notch at one end of the keyboard switch mounting board is locked to the T-shaped cut-and-raised piece, and the other end is screwed to the metal frame to project from the hole onto the metal frame. A keyboard switch mounting structure, wherein the keyboard switch is sandwiched between the metal frame and the keyboard switch mounting board.