JPH0628749Y2 - Keyboard switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a keyboard switch used as an input device for various information processing devices such as personal computers and word processors.

<Prior Art> In an input keyboard switch for a personal computer, a word processor, etc., function keys are frequently used and are often typed at high speed. Therefore, the key top itself is formed large so as to prevent erroneous operation. is doing. For example, a link mechanism is used so that the switch body can be smoothly turned on and off even if the key top becomes large.

FIG. 7 is an exploded view of a conventional keyboard switch,
FIG. 8 is a cross-sectional view showing the keyboard switch after assembly. In the keyboard switch, the switch body 6 is first mounted in the mounting hole 81 of the mold frame 8. A collar body 62 is integrally formed on the outer periphery of the housing 61 of the switch body 6, and when the collar body 62 is mounted in the mounting hole 81, the collar body 62 serves as a stopper. Further, a hole 82 is drilled in the vicinity of the mounting hole 81 of the mold frame 8, and the pin portion 71 of the lever receiver 7 is fitted therein. Then, this pin portion 71 is fixed to the mold frame 8 by means such as heat staking. On the other hand, a crown hole 11 is provided on the lower surface of the key top 1.
In contrast, the protrusion formed on the key lever 63 of the switch body 6
64 is fitted and one end 21, 21 of the lever 2 is supported by the bearing pieces 12, 12 provided on the lower surface of the key top 1, and further, in the lever receiving hole 72 of the lever receiver 7 as shown in FIG. The other end 22 of the lever 2 is fitted. As a result, the switch body 6
Is securely mounted on the mold frame 8 and also forms a link mechanism including the lever receiver 7, the lever 2, and the bearing piece 12. Therefore, when the key top 1 is pressed, the switch mechanism of the switch body 6 is turned on and off by the spring mechanism (not shown) in the key lever 63 together with the link mechanism, and then the key position is restored to the original position.

On the other hand, the key top 1 is made larger and one key top 1
When a plurality of, for example, two switch bodies 6 and 6 are provided on the key top 1, a pair of crown holes 11 are provided on the lower surface of the key top 1 and bearing pieces 12 are provided on both sides thereof as shown in the perspective view of FIG. Then, the protrusion 64 of the switch body 6 is fitted into the crown hole 11 in the same manner as described above.

Similarly, holes 82, 82 are provided in the vicinity of the mounting holes 81, 81 to form a link mechanism composed of the lever receivers 7, 7 and the lever 2 and the bearing piece 12, and a spring mechanism in the key lever 63 provides a smooth mechanism. Operability is obtained.

<Problems to be solved by the invention> However, the keyboard switch having the above-mentioned configuration has a mounting hole.
A hole 82 for fixing the lever receiver 7 must be formed in the vicinity of 81, so that there is no freedom in the position for mounting a large function key on the same mold frame. Further, the lever receiver 7 is fixed at a position apart from the mounting hole 81, and a link mechanism is formed by the lever receiver 7, the lever 2 and the key top (bearing piece 12), so that the mounting area of the keyboard switch on the mold frame 8 is formed. Grows larger. Therefore, when downsizing the device itself,
The distance between adjacent switch bodies is also limited.
Moreover, since the lever receiver 7 itself is caulked against the mold frame 8, the equipment for mounting is also large, and furthermore, once the lever receiver is fixed to the mold frame 8, it is not easy to remove it.

As described above, the conventional keyboard switch has an increased degree of freedom such as position change on the mold frame and an increase in mounting area.
Further, there are many problems such as difficulty in mounting and mounting.

<Means for Solving the Problems> The present invention has been devised in view of the above problems. A gap is provided between the mounting hole provided in the frame and the switch body, and the lever receiver is inserted into this gap. It was done. Moreover, the lever receiver itself is detachably inserted into the frame.

<Operation> That is, in the keyboard switch of the present invention, since the lever receiver is inserted into the gap formed by the mounting hole and the switch body, it is not necessary to separately provide a hole or the like for fixing the lever receiver.
Moreover, the gap formed between the mounting hole and the switch body is closest to the switch body, and the link mechanism formed by the lever receiver, the lever, and the key top (bearing piece) is formed closest to the switch body. Further, since the spring piece provided on the lever receiver is detachably inserted into the frame, the position of the switch main body can be repositioned very easily.

<Embodiment> The keyboard switch of the present invention will be described in detail with reference to the drawings.

Regarding each component of the keyboard switch of the present invention,
Components that are not different from the conventional example will be described with the same reference numerals.

FIG. 1 is an exploded perspective view of a keyboard switch according to the present invention. The keyboard switch of the present invention comprises a key top 1, a lever 2 and a switch body 3, and a clamp piece 5 which is a lever receiver and is inserted between the switch body 3 and the mold frame 4.

The key top 1 has a crowning hole 11 formed substantially in the center of its lower surface, and bearing pieces 12 are provided on both sides of the crowning hole 11.
Further, the lever 2 is a bar-shaped member formed into a substantially U-shape, and the opposite ends 21 of the lever 2 are axially supported by the holes 13 of the bearing piece 12.
The other end 22 is supported by the clamp piece 5 as described later. As shown in the perspective view of FIG. 2, the switch body 3 has fixing sides 32 formed at four corners of the housing 31, and at least one fixing side 32 is provided with a latching piece 33 having a predetermined elasticity. Further, a recess 34 is formed between the fixing sides 32 on the other side.
Furthermore, mechanical contacts are turned on and off at the top of the housing 31.
A key lever 35 for FF is provided, and a protrusion 36 is provided on the upper surface of the key lever 35. The key lever 35 has a built-in spring mechanism (not shown), and functions to return the pressed key top 1 to its original position. FIG. 3 is a perspective view showing the clamp piece 5. This clamp piece 5 is formed by integrally forming an insertion side 51 and a lever receiving portion 52, and a spring piece 53 is formed from the lower side of the insertion side 51 toward the upper side outward, and the spring piece 53 is formed on the upper side of the insertion side 51. A stopper 54 is provided so as to protrude from the piece 53 at a predetermined distance (substantially equal to the thickness of the mold frame). Lower bullets 55 on both sides of this stopper 54,
Further, upper bullet pieces 56 are provided above the insertion pieces 51, respectively. The lower bullet piece 55 and the upper bullet piece 56 form a lever receiving portion 52, and the lever receiving portion 52 has the other end 22 of the lever 2.
Is fitted. That is, as shown in FIG.
The other end 22 of the lever 2 is elastically supported by 55 and the upper bullet 56.

Next, the construction for mounting and assembling the keyboard switch of the present invention will be described with reference to the schematic sectional views of FIGS. 1 and 5.

First, the housing 31 of the switch body 3 is fitted into the mounting hole 41 of the mold frame 4. At this time, it is fitted against the elasticity of the hooking piece 33. That is, it will be mounted in a snap-in manner. Moreover, the fixing sides 32 formed at the four corners of the housing 31 serve as stoppers, and the switch body 3 is mounted on the mold frame 4 at a predetermined height.

In such a state, there is a gap H between the mounting hole 41 and the recess 34.
Is formed. The insertion side 51 of the clamp piece 5 is inserted into the gap H. Since the spring piece 53 is formed on the insertion side 51 from below to above, the clamp piece 5
If is inserted into the gap H, it will also be inserted into the mold frame 4 in a snap-in manner.

Next, insert one end of the lever 2 into the hole 13 of the bearing piece 12 of the key top 1.
Support 21. Then, the protrusion 36 is fitted into the crown hole 11, and the other end 22 of the lever 2 is fitted into the lever receiving portion 52 of the clamp piece 5. As a result, the keyboard switch is assembled in the state shown in FIG. When the key top 1 of this keyboard switch is pressed in the direction of the arrow, the lever 2 has its one end 21 rotated in the direction of the arrow with the lever receiving portion 52 as a fulcrum, and the key lever 35 is lowered to move the switch main body 3
Turn on and off the mechanical contacts inside. On the other hand, when the pressed state of the key top 1 is released, the key top 1 is pushed up by the spring mechanism in the key lever 35. At this time, similarly to the above, the other end 22 of the lever 2 fitted in the lever receiving portion 52 pivots upward about the one end 21 to smoothly restore the key top 1 to the original position. In order to remove the keyboard switch assembled as described above from the mold frame 4, first, the spring piece 53 of the clamp piece 5 is pressed in the X direction of FIG. Then, the key top 1 is also removed from the switch body 3, and at the same time, the other end 22 of the lever 2 is released from the clamp piece 5. Further, by pressing the latching piece 33 provided on the switch body 3 in the Y direction in FIG. 1, the switch body 3 itself can be removed from the mounting hole 41 of the mold frame 4.

In the above description, one switch body 3 is incorporated into the key top 1, but the key top 1
If the switch is made larger and a plurality of switch bodies are provided, for example, two switch bodies 3 are provided for one key top 1 as shown in the perspective view of FIG. The clamp piece 5 is inserted into each gap H formed between the hole 41 and the switch main body 3, and the protrusion 35 of each switch main body 3 is fitted into each crown attachment hole 11 provided in the key top 1, and further the key top 1 Against one end 21 of lever 2
The other end 22 may be supported by the clamp piece 5. Also, when removing the keyboard switch from the mold frame 4, the same operation as described above may be performed.

<Effects of the Invention> As described above, the keyboard switch of the present invention has the lever receiver inserted into the gap formed by the switch body and the mounting hole. As a result, a so-called link mechanism is provided close to the switch body itself, resulting in a frame. The upper mounting area can be reduced. Therefore, it is possible to downsize the keyboard unit while having a large key top. Moreover, since the lever receiver is attachable to and detachable from the frame, the keyboard switch has great versatility and practicality, such as easy transfer of function keys and the like.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a keyboard switch of the present invention, FIG. 2 is a perspective view of a switch body, FIG. 3 is a perspective view of a clamp piece, and FIG. 4 is a lever support state by the clamp piece. 5 is a schematic sectional view of the keyboard switch, FIG. 6 is an exploded perspective view showing another embodiment of the keyboard switch, and FIG. 7 is an exploded perspective view of a conventional keyboard switch. FIG. 9 is a schematic sectional view of a conventional keyboard switch, FIG. 9 is a partially omitted perspective view showing a supported state of a lever, and FIG. 10 is an exploded perspective view showing another conventional example. 1 …… Key top, 2 …… Lever, 21 …… One end, 22 …… Other end, 3 …… Switch main body, 31 …… Housing, 32 …… Fixing side, 33 …… Latching piece, 34 …… Key lever , 4 …… Mold frame, 41 …… Mounting hole, 5 …… Clamp piece, 51 …… Insert side, 52 …… Lever receiving part, 53 …… Spring piece, H …… Gap.

Claims (2)

[Scope of utility model registration request] 1. A keyboard switch in which a switch main body is mounted in a mounting hole of a frame, one end of a lever is supported by a key top and the other end of the lever is supported by a lever receiver, and the key top is attached to the switch main body. A keyboard switch, wherein a gap is provided between the mounting hole and the switch body, and a lever receiver is inserted into the gap. 2. The utility model registration claim 1, wherein the lever receiver is detachably attached to the frame through the elastic force of a spring piece provided on the insertion side of the lever receiver. Keyboard switch.