KR20010077637A - Drainage type key board - Google Patents

Abstract

PURPOSE: A waterproof keyboard is provided to discharge a liquid when a beverage is flushed over the keyboard. CONSTITUTION: A plurality of drainage holes(22) penetrating toward the lower portion of a main body are formed at the upper surface of the upper case(20) having keys(30). A key housing is formed at the upper surface of the upper case(20) for assembling the keys(30). The upper portion and the lower surface of the key housing is opened for leading to the inner portion of the main body. The keys(30) comprises a pressing plate(31) and a guide rib portion(32) being inserted toward the inner portion of the key housing. The guide rib portion(32) is slidably supported at the inner surface of the key housing and is moved in the upper and lower directions. A rubber sheet(12) is located at the right lower of the keys(30) between the upper case(20) and the lower case(10). A membrane sheet(11) is stored at the lower portion of the rubber sheet(12). The drainage holes(22) penetrate the main body and are linked toward the lower portion of the main body, an outlet(23) is formed at the lower surface of the lower case(10).

Description

Waterproof keyboard {DRAINAGE TYPE KEY BOARD}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard used as an input device such as a computer, and more particularly, to a waterproof keyboard capable of preventing a breakdown by discharging a beverage when spilled onto a keyboard. will be.

A keyboard is a device used as a main input means in a personal computer (PC), a terminal, and the like. As shown in FIG. 1, a substrate (not shown) and a membrane sheet are disposed between the lower case 1 and the upper case 4. (2) is built-in, and many clamps 6 are provided in the upper case 4 upper surface.

In the installation structure of the key 6, a key housing 5 for assembling the key 6 is formed on the upper surface of the upper case 4, and the upper and bottom surfaces of the key housing 5 are opened so that the upper case 4 ) And the internal space between the lower case (1). The clamp 6 is composed of a pressing plate 7 portion in contact with a finger and a portion of a guide rib 8 inserted into the key housing 5 and slidably supported on an inner circumferential surface thereof, in a state of being engaged with the key housing 5. It is mounted to be movable up and down within a certain distance.

The rubber seat 3 is positioned at the bottom of the key 6 to contact the membrane sheet 2 at the bottom when the key 6 is pressed, and generates an input signal. When the push is stopped, the rubber sheet 3 is stopped. By the restoring force of the key 6 is restored to the initial position and the contact with the membrane sheet 2 is released.

Such a conventional keyboard has a structure in which the keyhole 6 protrudes from the upper surface of the keyboard, so that the upper surface of the upper case 4 is usually positioned so that its edge portion is relatively higher than the inner portion for reasons of beauty. It is common to put a car. Therefore, if a user accidentally spills a beverage such as coffee, the user can not get out of it and is stuck in it, thereby preventing the operation of the key or, in some cases, penetrating into the case and causing a malfunction by causing contact failure. There was this.

The present invention is to solve the conventional problems as described above, the object of the present invention is to provide a waterproof keyboard that can be discharged when a drink or the like spilled.

The keyboard of the present invention for achieving the above object is characterized in that the drain port is installed on the upper surface of the case.

According to the present invention, when a user accidentally spills a drink or the like onto the keyboard, it is discharged to the lower part of the case through a drain hole, thereby preventing it from accumulating on the upper part of the case or penetrating into the case as in the prior art, causing various failures. You can do it.

1 is a cross-sectional view showing the structure of a general keyboard;

2 is a perspective view of a waterproof keyboard according to the present invention;

Figure 3 is a cross-sectional view showing the structure of a waterproof keyboard according to the present invention.

<Description of the symbols for the main parts of the drawings>

10; Lower case

11; Membrane contact sheet

12; Rubber sheet 20; Upper case

21; Key housing 22; waterspout

23; Outlet 24; pipeline

30; Key 31; Key top

32; Guide rib

Such a characteristic configuration of the present invention and its effects will be more apparent through the detailed description of the embodiments with reference to the accompanying drawings.

2 is a perspective view showing a waterproof keyboard according to the present invention, Figure 3 is a cross-sectional view showing its structure.

As shown, the waterproof keyboard according to the present invention, the body is made up of the upper case 20 and the lower case 10, the upper surface of the upper case 20 on which the key 30 is installed a plurality of communication to the lower body A drain 22 is provided.

Here, a key housing 21 for assembling the key 30 is formed on the upper surface of the upper case 20, and the key housing 21 has a structure in which the upper and lower surfaces thereof are opened to communicate with the inside of the body.

The key 30 is composed of a pressing plate 31 forming a keyboard and a guide rib 32 inserted into the key housing 21, and the guide rib 32 is slidably supported on the inner circumferential surface of the key housing 21. As a result, the vertically reciprocating motion is performed within a certain distance.

Between the upper case 20 and the lower case 10, that is, inside the body, the rubber sheet 12 is positioned directly under the key 30, and the membrane sheet 11 is embedded below the rubber sheet 12. do. In addition, the substrate is built in one side not shown.

Accordingly, when the key 30 is pressed, the guide rib 32 at the bottom of the key 30 presses the rubber sheet 12, and the rubber sheet 12 contacts the membrane sheet 11 below it to generate an input signal. do. When the pressing operation is stopped and the finger is released from the key 30, the key 30 is restored to the initial position by the restoring force of the rubber seat 12, and the contact between the rubber seat 12 and the membrane sheet 11 is released.

On the other hand, as a feature of the present invention, the drain port 22 formed in the upper case 20 is in the form of inducing a natural fall of the fluid is communicated to the bottom of the body through the body, the discharge port 23 on the bottom of the lower case 10 Is formed. That is, the drain hole 22 formed in the upper case 20 and the discharge hole 23 formed in the lower case 10 may be connected to each other through a conduit 24 penetrating the inside of the body.

Therefore, even if the user accidentally spills a beverage such as coffee on the keyboard, the beverage does not stick to the upper case 20 but enters the drain 22 and passes through the conduit 22 to the bottom of the lower case 10. 23) can be discharged to the bottom of the keyboard to reduce contamination.

As described above, according to the present invention, it is possible to improve the quality and durability of the product by preventing the contamination of parts due to the accidentally poured beverage of the user and reducing the occurrence of malfunctions such as malfunction or poor contact.

Claims (2)

In the keyboard, Waterproof keyboard, characterized in that the drain 22 is installed on the upper case. The waterproof keyboard according to claim 1, wherein the drain hole (22) communicates with the lower surface from the upper surface of the case (20) and is isolated from the inside of the case (10, 20).