KR100891480B1 - Keyboard switch fastening construction - Google Patents

Abstract

The present invention relates to a fixing structure for fixing a switch for a keyboard, and more particularly, to a structure for fastening a keyboard switch in a keyboard that illuminates a key through a light emitting element at the bottom of the key.

The present invention provides a keyboard switch fastening structure in which a light emitting device for illuminating a key top is installed on a bottom of a key, comprising: a base part disposed on a bottom of a key, a membrane switch part provided on an upper surface of the base part, and having a contact part; An elastic movable part installed above the contact part of the part and elastically deformed to connect the contact part, a first link of which one end is rotatably fixed to the first hinge part formed at one end of the base part, and a first hinge of the base part; A second linker having one end rotatably fixed to a second hinge portion formed on an opposite side, and the first link and the second link intersecting with each other at a center thereof and being connected to the rotatable movement; And a key top that is rotatably fixed at a position where the other end of the first link and the other end of the second link face each other. An opening part is formed in the center of the base part, and any one or more of the first hinge part and the second hinge part of the base part are fixed around the opening.

Description

Keyboard switch fastening structure {KEYBOARD SWITCH FASTENING CONSTRUCTION}

1 is a view showing a switch fastening structure for a keyboard in the prior art.

Figure 2 is an exploded perspective view of one embodiment of a switch fastening structure for the keyboard of the present invention.

3A is a plan view of the base portion, and FIG. 3B is a side cross-sectional view.

4 is a side cross-sectional view of one embodiment of the present invention.

FIG. 5 is an enlarged view of A in FIG. 4. FIG.

* Description of the symbols for the main parts of the drawings *

10: base portion 11: opening

12: 1st hinge part 13: 2nd hinge part

20: membrane switch portion 21: contact portion

22: elastic moving part 30: branch link 31: first link second: second link 40: key top 50: transparent plate 51: groove 52: receiving groove

53: step 60: printed circuit board

61: LED

The present invention relates to a fixing structure for fixing a switch for a keyboard, and more particularly, to a structure for fastening a keyboard switch in a keyboard that illuminates a key through a light emitting element at the bottom of the key.

With regard to keyboard input device consisting of several keys, such as a computer keyboard, an IPTV keyboard, or a remote controller, each key is made of a transparent material and emits light through LEDs that emit color from the bottom of the key to illuminate the keys. This is known.

In order to apply this technology, all parts from the LED to the top of the key must be configured to pass light from the LED.

In particular, as a keyboard switch used in a notebook or the like, a switch having a scissor link which is hinged at an intermediate portion and intersects with each other as shown in FIG. 1 is widely used.

The scissor link keyboard switch has a base portion 100, a membrane switch portion 200 on which the elastic movable portion 210 is fixed, and a link 310 disposed on the base portion 100. And a caesar link 300 on which one end of the link 320 is rotatably fixed, and a key top 400 on which the other end of each of the links 310 and 320 is rotatably fixed.

The base portion 100 is formed with a hinge portion 110 for fixing each of the links 310 and 320 of the scissor link 300, and the hinge portion 110 is a sealed portion 120 in the center of the base portion 100. It is fixed to).

Therefore, the light from the LED unit installed in the base portion 100 is blocked by the sealing portion 120 and does not reach the key top, so that the color does not appear or appear on the key top, there is a disadvantage that is not clear, there is such a problem In order to solve the problem, the sealing part 120 should be removed, but since the hinge part 110 is fixed to the sealing part 120, it is difficult to fix the hinge part 110.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and it is an object of the present invention to provide a keyboard switch fastening structure in which light from an LED installed on a bottom surface of a keyboard switch can reach a key top.

The present invention is a keyboard switch fastening structure provided with a light emitting device for illuminating a key top on the bottom of the key to solve the above problems, a base portion disposed on the bottom of the key, and a membrane provided on the upper surface of the base portion having a contact portion A switch portion, an elastic movable portion installed above the membrane switch portion and elastically deformed to connect the contact portion, and a first link rotatably fixed to one end portion of the first hinge portion formed at one end of the base portion; And a second link having one end rotatably fixed to a second hinge portion formed on a side opposite to the first hinge of the base portion, wherein the first link and the second link cross each other at a center to be rotatable. A caesar type link portion to be connected, and the other end of the first link and the other end of the second link to be rotatable in a position opposite to each other. It includes a key top which is defined, and the center of the base portion, the opening is formed, of the base portion the first hinge part and at least either one of the second hinge is characterized in that secured to the periphery of the base portion.

The present invention is characterized in that any one or more of the first hinge portion and the second hinge portion are formed of a ring portion.

In this invention, convex part is formed in one or both of the said 1st hinge part and a 2nd hinge part, and the recessed part of the shape corresponding to the said convex part is formed in the other one or both of the said 1st hinge part and the 2nd hinge part. Characterized in that formed.

In the present invention, a transparent plate is disposed below the base part, and a printed circuit board on which the light emitting device is fixed is disposed below the transparent plate.

In the present invention, a convex step portion corresponding to the opening shape of the base part is formed at an upper portion of the transparent plate, and an accommodating groove for accommodating any one or both of the annular first hinge part and the second hinge part is formed at the end of the step part. It is characterized by being formed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 2 is a diagram illustrating an embodiment of the present invention.

In the embodiment of the present invention, the keyboard switch fastening structure 1 is hinged to the base part 10, the membrane switch part 20 placed on the base part 10, and the base part 10. It consists of a scissors type link portion 30 to be fastened, and a key top 40 fixed to the scissors type link portion 30, a transparent plate 50 is disposed below the base portion 10, the transparent The printed circuit board 60 is disposed below the plate 50.

3A is a plan view of the base portion, and FIG. 3B is a side cross-sectional view.

The base portion 10 has an opening 11 formed as wide as possible to occupy most of the base portion 10 as a back metal plate material. On the circumferential side of the base portion 10, a first hinge portion 12 protruding upward of the base portion 10 and having an annular projection portion 12a formed at an end thereof.

In addition, the second hinge portion 13 on which the groove-shaped recess 13a is formed is formed so as to protrude upward from the base portion 10 at opposite ends of the base portion 10.

4 is a side cross-sectional view of one embodiment of the present invention. FIG. 5 is an enlarged view of A in FIG. 4. FIG.

The membrane switch unit 20 is composed of three transparent polyester (PET) films of the upper film 20a, the intermediate film 20b, and the lower film 20c, and the upper film 20a and the lower film 20c. The contact portion 21 is formed.

The dome-shaped elastic movable portion 22 is formed as a transparent silicone material and is fixed to the upper film 20a at the upper portion of the contact portion 21.

When the upper surface portion of the key top 40 is pressed by the user's finger, the dome-shaped upper surface portion of the elastic movable portion 22 is deformed and the contact portions 21 formed on the upper film 20a and the lower film 20c contact each other to switch. Connection is made.

The membrane switch of the present embodiment is for the configuration in which the contact portion 21 is formed in the upper film 20a and the lower film 20c and connected in the vertical direction, but is not limited thereto. Any configuration can be used as long as the contact portion is connected.

For example, two fixed contact portions are formed on an intermediate film or a film composed of one sheet, and a movable contact is formed on a dome shape of the elastic movable portion so that the dome shape of the elastic movable portion is deformed and the two fixed contacts are connected to each other by the movable contact. A membrane switch in the form of a connection is also possible.

The scissor type link portion 30 is composed of a first link 31 and a second link 32 made of a transparent material so that a central portion thereof is hollow in a rectangular shape and light can pass therethrough.

A groove-shaped recess 31a is formed at one end of the first link 31, and the annular convex portion 12a of the first hinge portion 12 is rotatably fixed to the recess 31a.

 The protruding cylindrical hinge portion 33 is formed at the center portion of the side portion 31b of the first link 31 so that the side portion 32b of the second link 32 is moved to the center portion when the casing type link portion 30 is operated. It is rotatable relative to each other so that both links 31 and 32 can act like a scissor.

The cylindrical convex portion 31c formed at the other end of the first link 31 is rotatable below the groove-shaped concave portion (not shown) formed in the second connection portion 42 formed below the bottom of the key top 40. It is fixed. The convex portion 31c of the first link 31 and the concave portion of the second connection portion 42 of the key top 40 have a known hinged configuration in which they are rotatably fastened to each other.

At the other end of the second link 32, cylindrical convex portions 32a protruding from both sides are formed in the lower portion of the groove-shaped recess (not shown) formed in the first connection portion 41 formed below the bottom of the key top 40. It is rotatably fixed. The convex portion 32a of the second link 32 and the concave portion of the first connection portion 41 of the key top 40 have a known hinged configuration in which they are rotatably fastened to each other.
At one end of the second link 32, cylindrical convex portions 32d protruding to both sides are formed and rotatably connected to the groove-shaped concave portion 13a of the second hinge portion 13.

The key top 40 is made of a transparent material so that light of the light emitting device can be transmitted therethrough, and a first connection portion 41 to which the front end portion 32a of the second link 32 is connected is formed at an upper portion of the bottom surface thereof, and a first connection portion is formed at the lower portion thereof. The second connecting portion 42 to which the rear end portion 31c of the link 31 is connected is formed. The first connecting portion 41 and the second connecting portion 42 consist of a hinge configuration known in the art.

The lower surface of the transparent plate 50 disposed below the base portion 10 is formed with a groove 51 for accommodating the LED 61 which is a light emitting element.

A convex stepped portion 53 corresponding to the concave shape of the opening portion 11 of the base portion 10 is formed at the upper portion of the transparent plate 50 to be fitted into the opening portion 11 to support the membrane switch portion 20. At one end of the step portion 53, an accommodation groove 52 for accommodating the bottom portion of the first hinge portion 12 is formed.

The printed circuit board 60 is disposed under the transparent plate 50, and the LED 61, which is a light emitting element, is fixed thereon.

In this embodiment, the light emitted from the LED 61 disposed on the bottom surface is secured by the sealing part 120 of the base part 100 as in the prior art by securing the opening 11 of the base part 10 as wide as possible. By reaching up to the key top 40 without being blocked, it becomes possible to secure the desired color of the key top 40.

At the same time, it is possible to connect the caesar type link portion by securing the first hinge portion that is deleted due to the enlargement of the opening portion 11 around the base 100 portion and not the center of the base portion 100.

In this embodiment, in the hinge engagement between the first and second hinge portions 12 and 13 and the first and second links 31 and 32, one end portion is formed as a convex portion, and the other end portion corresponds to the convex portion. It is formed as a concave portion, but is not limited to this, it is also possible that the concave portion and the convex portion is formed to be interchanged.

In addition, also in the hinge engagement between the 1st, 2nd links 31 and 32 and the 1st and 1st connection parts 41 and 42 of the key top 40, one end part is formed in convex part similarly, and the other end part is concave. It is also possible to form negatively or vice versa.

The present invention has the effect that the light that is illuminated by the light emitting element on the bottom of the key can reach the key top without being blocked by the base by simply changing the shape of the base in the existing switch configuration by the above-described configuration. do.

In addition, even though the sealing portion is removed from the base portion, there is an effect of providing a keyboard switch fastening structure in which a light emitting element for illuminating the key top is installed on the bottom of the key that can fix the hinge portion.

Claims (5)

A keyboard switch fastening structure is provided with a light emitting element for illuminating the key top on the bottom of the key, A base portion disposed on the bottom of the key, A membrane switch part installed on an upper surface of the base part and having a contact part; An elastic movable part installed above the contact part of the membrane switch part and elastically deformed to connect the contact part; A first link having one end rotatably fixed to a first hinge portion formed at one end of the base portion, and one end rotatably fixed to a second hinge formed at a side opposite to the first hinge of the base portion; A scissor type link unit having a second link, the first link and the second link intersecting each other at a center and rotatably connected to each other; It has a key top that is rotatably fixed in a position opposite the other end of the first link and the other end of the second link, An opening is formed in the center of the base portion, The keyboard switch fastening structure, characterized in that any one or more of the first hinge portion and the second hinge portion of the base portion is fixed around the base portion. The method of claim 1, Convex portions or concave portions are formed on one or both of the first link one end and the second link one end, Any one or both of the end portion of the first hinge portion and the end portion of the second hinge portion is formed with a concave portion or a convex portion rotatably coupled to the convex portion or the concave portion. The method according to claim 1 or 2, Convex portions or concave portions are formed on one or both of the first link other end and the second link other end, In one or both of the first connecting portion and the second connecting portion of the key top, a concave portion rotatably coupled to the convex portion or the concave portion formed on either or both of the first link other end and the second link other end, or Keyboard switch fastening structure, characterized in that the convex portion is formed. The method according to claim 1 or 2, A transparent plate is disposed below the base part, And a printed circuit board on which the light emitting device is fixed is disposed below the transparent plate. The method of claim 4, wherein The upper portion of the transparent plate is formed with a convex step portion corresponding to the opening shape of the base portion, And an accommodation groove for accommodating any one or both of the annular first hinge portion and the second hinge portion is formed at an end of the stepped portion.

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