JPS5933067Y2 - keyboard frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a keyboard used as an input device for an information processing device, and more particularly to its frame structure.

Generally, the frame of a keyboard is designed with consideration given to ease of assembly, excellent operability during use, and good aesthetic appearance.

In order to obtain a keyboard frame that satisfies the above-mentioned conditions, it is appropriate to use resin molding.

However, it is difficult for resin molded products to have sufficient mechanical strength compared to metal frames, and the structure of the mold may cause surface depressions that impair the aesthetic appearance.

The purpose of this invention is to improve the mechanical strength and assembly by molding resin and creating a unique shape and positioning means for connecting and positioning the cover and base that make up the frame. The purpose of the present invention is to provide a keyboard frame that satisfies performance, operability, and aesthetic appearance.

The keyboard frame according to the present invention has hollow bosses that come into contact with the casing of the key switches integrally arranged on the inner wall surface of the operation panel where the key switches are arranged, corresponding to the arrangement positions of the key switches, and screw holes. A resin having a hollow columnar protrusion integrally disposed on the inner wall surface of the operation panel, and having a reinforcing member that supports the casing of the key switch and is disposed to engage with and face the inner wall surface of the operation panel. It consists of a lid body, and a resin base body in which a support that abuts the reinforcing member and a pedestal that abuts the hollow columnar protrusion are respectively integrally arranged on the inner wall surface, and the hollow boss and the hollow columnar protrusion of the resin lid body Each of the pieces is hollow from the tip to a fixed end extending to the inner wall surface of the operation panel, and the resin lid and the resin base communicate with the hollow columnar protrusion and the screw hole of the pedestal and are screwed together. It is characterized in that it is connected by a fastening member.

The present invention will be described below with reference to the drawings.

FIGS. 1 and 2 are a sectional view and a plan view showing an embodiment of a keyboard frame according to the present invention.

Referring to both figures, a cover 1 made of synthetic resin has hollow ribs 2 at three locations on the edge of the inner wall surface to prevent deflection, and a plurality of cylindrical shapes protruding from the central inner wall surface at predetermined intervals to prevent deflection. The bosses 3 are integrally formed with truncated conical holding protrusions 4 each having a screw hole bored at each of the four corners of the inner wall surface where the bosses are provided.

Further, the cover 1 has a plurality of through holes arranged in a matrix, and a push button 5b is attached to the tip of each operating rod 5a of the key switch 5 that is inserted through each of these through holes, and these push buttons are used to operate the keyboard. It is exposed on the surface of the board.

The key switch 5 is mounted on a printed circuit board 6 via its case 5c.

Further, the key switch 5 is positioned and held by a case 5c that penetrates and locks a reinforcing plate 7 having a U-shaped cross section.

The reinforcing plate 7 is held by a plurality of prismatic columns 9 projecting from the base 8 and comes into contact with the inner wall surface of the cover 1.

Thereby, the operation panel surface of the cover 1 can be reinforced.

Further, the reinforcing plate 7 is positioned by having one edge of the reinforcing plate 7 hooked to a notch of a bee-shaped support 10 projecting from the base 8.

The base 8 has a truncated conical pedestal 11 with a screw hole bored at a position corresponding to the holding protrusion 4 provided on the cover 1.

The cover 1 and the base 8 are coupled by attaching insert screws 12 to the holding protrusions 4 and pedestals 11 provided on each from the direction of arrow A.

Further, the base 8 is provided with holding members 14 and 15 for holding the printed circuit board 13 electrically connected to the printed circuit board 6 on which the key switch 5 is mounted.

As can be seen with reference to FIGS. 3A to 3C, the mounting pins 14 of these holding members are hollow and are disposed diagonally integrally with the base 8.

Further, the holding member 15 is a cylindrical projecting piece provided with a thread groove, and is disposed diagonally integrally with the base 8.

The base 8 has a handle 16 for carrying the keyboard.

Note that it is also possible to position the reinforcing plate 7 not by locking it with the pillar 10 but by fitting it into the contact portion with the pillar 9.

The keyboard frame configured as described above is (1)
In addition to locking the multiple key switches placed on the operation panel surface to a reinforcing plate supported by columns provided on the base, bosses that come into contact with the key switch case are provided on the inner wall of the cover, making mechanical The strength can be sufficiently compensated,
(2) By forming the bosses, ribs, holding protrusions, etc. provided on the cover into a hollow shape, the surface depressions that occur during molding can be rotated and the aesthetic appearance can be improved; and (3)
The cover and base are connected by insert screws installed between the protrusions provided on each, and the printed circuit board is supported by the holding protrusions integrally molded with the base, which improves assembly efficiency and eliminates the need for conventional resin. It can completely eliminate the problems with manufactured keyboards.

As explained above, according to the present invention, the lid body and the lid body are formed by resin molding, and by providing bosses and struts thereon as coupling and positioning means, mechanical strength, assemblability, operability, and A keyboard frame body that satisfies all aspects such as aesthetic appearance and appearance can be obtained.

[Brief explanation of drawings]

1 and 2 are a sectional view and a plan view showing an embodiment of the keyboard frame according to the present invention, and FIGS. 3A to 3C.
3A and 3B are diagrams showing the arrangement and shape of a printed circuit board holding member provided on the base, FIG. 3B is a sectional view taken along the line BB', and FIG. 3C is a sectional view taken along the line CC'. 1: Cover, 2: Rib, 3: Boss, 4: Holding protrusion, 5:
Key switch, 6, 13 Niblint board, 7: Reinforcement plate,
8: base, 9, 10: support column, 11: pedestal, 12: insert screw, 14, 15 niblint board holding member.

Claims (1)

[Scope of utility model registration request] Hollow bosses that come into contact with the housing of the key switches are integrally arranged on the inner wall surface of the operation panel where the key switches are arranged, corresponding to the arrangement positions of the key switches, and hollow columnar protrusions with screw holes are provided. a resin lid that is integrally disposed on the inner wall surface of the operation panel, supports a casing of the key switch, and has a reinforcing member that engages with and faces the inner wall surface of the operation panel; It is comprised of a resin base body in which a supporting column that abuts and a pedestal that abuts the hollow columnar protrusion are respectively integrally arranged on the inner wall surface, and each of the hollow boss and the hollow columnar protrusion of the resin lid body is operated from the tip thereof. It is hollow up to the fixed end reaching the inner wall surface of the panel, and the resin lid body and the resin base body are connected by a fastening member that communicates with the screw hole of the hollow columnar protrusion and the pedestal and is screwed. Features a keyboard frame.