JP3099586U - Computer keyboard bowl-shaped elastic plastic body fixing device - Google Patents

Abstract

[Object] To provide a fixing device of a keyboard bowl-shaped elastic plastic body for a computer, which reduces a defective rate and a manufacturing cost.
A positioning thin plate is provided on a thin-film switch circuit board, and a positioning hole is provided in the localization thin plate corresponding to the position of each thin-film switch of the thin-film switch circuit board. An enclosing wall 72 protruding upward is provided at an edge of the installation hole 71, and a bowl-shaped elastic plastic body is installed in each installation hole 72, and the enclosure 72 captures and fixes the bowl-shaped elastic plastic body at that position. A notch in the surrounding wall 72 of the installation hole 71 of the stereotactic thin plate 7 is provided with a projecting plate 74 projecting into the hole.
[Selection] Fig. 10

Description

[0001]
[Technical field to which the invention belongs]
According to the present invention, each bowl-shaped elastic plastic body can be fixed easily and speedily while being held independently of each other, and the assembly and replacement of the bowl-shaped elastic plastic body are extremely simple, and the manufacturing cost is greatly reduced. The present invention relates to a device for fixing a bowl-shaped elastic plastic body of a computer keyboard, which can effectively increase the product yield.
[0002]
[Prior art]
The keyboard is one of the input devices of the computer equipment, and inputs data by a finger pressing operation.
[0003]
FIG. 14 is a perspective view showing a general notebook computer keyboard. FIG. 15 is an exploded view showing a key in the computer keyboard of FIG. 14, which shows the structure of a conventional bowl-shaped elastic plastic assembly plate. FIG. 16 is a partially assembled view of the key of FIG. FIG. 17 is an assembled view of the key of FIG. FIG. 18 is a perspective view of a conventional bowl-shaped elastic plastic assembly plate of a computer keyboard. FIG. 19 is a partial sectional view showing one embodiment of the conventional bowl-shaped elastic plastic collecting plate of FIG. FIG. 20 is a partial sectional view showing another embodiment of the conventional bowl-shaped elastic plastic collecting plate of FIG.
[0004]
As shown in these figures, a keyboard of a general notebook computer is provided with several key structures for pressing operation on a base, and these key boats and key structures are a metal plate base 1, a thin film switch circuit board 2, It comprises several balancing mechanisms 3, several key hats 4, and several bowl-shaped elastic plastic bodies 5.
[0005]
As shown in FIG. 1, the metal plate base 1 is a platform on which a keyboard is provided. The metal plate base 1 is extended upward to provide several lower pivots 11 and lower active grooves 12, which are used to fix the balancing mechanism 3 described below. The metal plate base 1 may be provided with only the lower pivot 11 or only with the lower active groove 12, which can likewise fix the balancing mechanism 3 on the base.
[0006]
The thin film switch circuit board 2 is set on the base 1. Several thin film switches 21 and connection circuits 22 are provided on the thin film switch circuit board 2.
[0007]
The balancing mechanism 3 is a generally X-shaped balancing mechanism, provided with a lower pivot 31 and / or a lower active shaft 32 at four ends of the X-shape or other suitable portions, each of which has a lower pivot 11 on the base 1. And / or fixing each other in correspondence with the lower active groove 12. In addition, an upper pivot 33 and / or an upper active shaft 34 are provided, and an upper pivot seat 41 and / or an upper active groove 42 provided on the key hat 4 described below are fixed so as to correspond to each other. The balance mechanism 3 is assembled to the key hat 4, and the key hat is positioned while maintaining the balance of the key hat in the process of pressing the assembly.
[0008]
An upper pivot 41 and an upper active groove 42 are provided on the bottom surface of the key hat 4, and are fixed to the upper pivot 33 and the upper active shaft 34 of the balancing mechanism 3, respectively. The key hat 4 may be provided with only the upper pivot 41 or only the upper active groove 42, which may also fix the key hat on the balancing mechanism.
[0009]
Each bowl-shaped elastic plastic body 5 is sandwiched between the key hat 4 and the thin-film switch circuit board 2 so as to be centered on each membrane switch 21. Provides the force to return to the original position. A center column 51 is provided at the top of the inner surface of the bowl-shaped elastic plastic body 5, and when the key hat 4 is pressed, the center column 51 presses the thin film switch 21 downward to conduct electricity.
[0010]
As shown in FIGS. 18 to 20, the conventional bowl-shaped elastic plastic body 5 fixing device fixes each bowl-shaped elastic plastic body on the flat plate 6 and separates the bowl-shaped elastic plastic body 5 from the flat plate 6. It is formed on a bowl-shaped elastic plastic assembly plate A, which cannot be used. When several localization holes 61 are provided in the flat plate 6 and the bowl-shaped elastic plastic assembly plate A is sandwiched between the key hat 4 and the thin film switch circuit board 2, the localization holes 61 form the bowl-shaped elastic plastic assembly plate A. After the orientation, each bowl-shaped elastic plastic body 5 is aligned with each thin-film switch 21.
[0011]
The above-mentioned bowl-shaped elastic plastic assembly plate A has two types of structures depending on the manufacturing method. One is to form a bowl-shaped elastic plastic body assembly plate A by integrally molding the flat plate 6 with the same plastic material as the bowl-shaped elastic plastic body 5 as shown in FIG.
The other is, as shown in FIG. 20, that a material different from the bowl-shaped elastic plastic body 5 is selected for the material of the flat plate 6, for example, a thin flat plate is selected and used, and each of the flat thin film switch circuit boards 2 is used. After the perforations 62 are provided at the positions corresponding to the thin film switches 21, the edge of the bottom 52 of each bowl-shaped elastic plastic body 5 is adhered to the perimeter of each perforation hole 62 of the flat plate 6 with an adhesive 63. Of the bowl-shaped elastic plastic assembly plate A. Regardless of the above-described structure of the bowl-shaped elastic plastic assembly plate A, the flat plate 6 and the bowl-shaped elastic plastic body 5 are integrally held and do not separate from each other.
[0012]
In the process of manufacturing the above-mentioned bowl-shaped elastic plastic body assembly plate A, or in the process of using the keyboard at a later date, there is a possibility that a part of the bowl-shaped elastic plastic body 5 must be replaced due to improper production or damage to use. There is. In the conventional bowl-shaped elastic plastic assembly plate A, each bowl-shaped elastic plastic body 5 and the flat plate 6 cannot be separated and are affected by defective elements. The entire assembly A was made unusable. When a certain bowl-shaped elastic plastic body 5 is damaged, it is not possible to replace only the damaged bowl-shaped elastic plastic body 5 alone, so it is necessary to replace the entire bowl-shaped elastic plastic body assembly plate A. . As a result, the defect rate of the entire product has increased relatively, and materials and manufacturing costs required for replacement have been wasted.
[0013]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a fixing device for a computer keyboard bowl-shaped elastic plastic body by improving the design of the above-mentioned conventional bowl-shaped elastic plastic assembly plate, which is insufficient.
[0014]
[Means for Solving the Problems]
The localization thin plate is installed on the thin film switch circuit board, and the localization thin plate is provided with an installation hole corresponding to the position of each thin film switch of the thin film switch circuit board. An upwardly projecting surrounding wall is provided at the periphery of the installation hole (the surrounding wall may be formed integrally continuously or may be discontinuously provided with a notch), and each installation hole has a bowl shape. An elastic plastic body is installed, and the bowl-shaped elastic plastic body is pressed by the surrounding wall to fix the position so as not to fall off. Therefore, when each bowl-shaped elastic plastic body is installed in each installation hole, each bowl-shaped elastic plastic body naturally aligns with the center of each thin-film switch.
[0015]
[Action]
Further, since the bowl-shaped elastic plastic bodies are independent of each other, the defective elements are not connected to each other. Therefore, even if a bowl-shaped elastic plastic is damaged, it is only necessary to replace the damaged bowl-shaped elastic plastic body alone, and the other unbroken normal bowl-shaped elastic plastic assembly plate together. No need to replace. In addition, a large amount of materials and manufacturing costs can be saved, and the product yield can be effectively increased.
[0016]
Further, a protruding plate protruding toward the inside of the hole is provided in the notch in the surrounding wall of the installation hole of the above-described stereotactic thin plate. Therefore, when the bowl-shaped elastic plastic body is installed in the installation hole of the stereotactic thin plate, the bottom edge of the bowl-shaped elastic plastic body simultaneously presses the projection plate of the stereoscopic thin plate, so that the stability of the connection is further enhanced.
[0017]
In addition, the top of the surrounding wall of the installation hole of the stereotactic thin plate has at least one protrusion projecting inward, and these protrusions put a soft bowl-shaped elastic plastic body into the installation hole surrounded by the inside of the surrounding wall. In addition, the bowl-shaped elastic plastic body is effectively prevented from falling off from the top of the installation hole, and the bowl-shaped elastic plastic body is prevented from falling out of the installation hole during assembly.
[0018]
[Embodiment of the invention]
Hereinafter, the structure, features and functions of the present invention will be described in more detail with reference to the drawings.
FIG. 1 is an exploded view of a device for fixing a bowl-shaped elastic plastic body for a computer keyboard of the present invention and its related parts. FIG. 2 is a perspective view of the fixing device of FIG. FIG. 3 is a partial perspective view of the fixing device of FIG. FIG. 4 is a perspective view showing a combination of the fixing device of FIG. 3 and a bowl-shaped elastic plastic body.
FIG. 5 is a sectional view showing a structure in which the fixing device of FIG. 4 and a bowl-shaped elastic plastic body are combined. FIG. 6 is a perspective view showing the structure of another embodiment of the fixing device of the present invention.
FIG. 7 is a perspective view showing a combination of the fixing device of FIG. 6 and a bowl-shaped elastic plastic body. FIG. 8 is a perspective view of a structure combining the fixing device of FIG. 7 and a bowl-shaped elastic plastic body. FIG. 9 is a structural perspective view of another embodiment of the fixing device of the present invention. FIG. 10 is a perspective view showing a combination of the fixing device of FIG. 9 and a bowl-shaped elastic plastic body.
FIG. 11 is a sectional view showing a structure in which the fixing device of FIG. 10 and a bowl-shaped elastic plastic body are combined. FIG. 12 is a perspective view showing the structure of another embodiment of the fixing device of the present invention. FIG. 13 is a sectional view showing a structure in which the fixing device of FIG. 12 and a bowl-shaped elastic plastic body are combined.
[0019]
As shown in the figures, the computer keyboard of the present invention includes a metal plate base 1, a thin film switch circuit board 2, several balancing mechanisms 3, several key hats 4, and several bowl-shaped elastic plastic bodies 5. Since the structure of the keyboard is the same as that of the keyboard described above, the description is omitted here. The present invention mainly provides a fixing device 7 having a different structure to the bowl-shaped elastic plastic body 5.
[0020]
The above-mentioned fixing device refers to the localization thin plate 7 provided on the thin film switch circuit board, and the localization thin plate 7 is located at a position corresponding to each thin film switch 21 of the thin film switch circuit board 2, and each has an installation hole 71. The surrounding wall of the installation hole is provided with an upwardly protruding surrounding wall 72, and the surrounding wall may be discontinuously provided with at least one notch 73, and the notch may have an inwardly extending projecting plate 74. There is.
[0021]
Similarly, several localization holes 75 provided in the localization thin plate 7 accurately position the localization thin plate 7 on the thin film switch circuit board 2, and set the installation holes 71 of the localization thin plate 7 to each of the thin film switch circuit boards 2. Match with the thin film switch 21.
[0022]
To fix the position of each bowl-shaped elastic plastic body 5 when mounting it on the keyboard described above, it is only necessary to place each bowl-shaped elastic plastic body in each installation hole 71 of the stereotactic thin plate 7, and the installation hole 71 is a peripheral wall Reference numeral 72 denotes a position where the bowl-shaped elastic plastic body 5 is captured and fixed.
Then, since the bowl-shaped elastic plastic body 5 is prevented from dropping out of the installation hole 71 and at the same time is naturally aligned with the center of the thin film switch 21, the assembly becomes very simple. In particular, the position of each bowl-shaped elastic plastic body 5 is fixed by the surrounding wall 72 of the installation hole 71 of the stereotactic thin plate 7, but each bowl-shaped elastic plastic body 5 is independent from each other without a solidarity relationship with each other. Do not adversely affect each other and do not affect each other.
That is, even if a certain bowl-shaped elastic plastic body 5 is damaged, the other bowl-shaped elastic plastic bodies cannot be used. Therefore, even if one or several of the bowl-shaped elastic plastic bodies 5 are damaged at the time of manufacture or at a later stage of use, simply replace the damaged bowl-shaped elastic plastic body 5 with a good bowl-shaped elastic plastic body 5. Often, there is no need to replace other undamaged, normal bowl-shaped elastic plastic bodies. Therefore, a large amount of materials and manufacturing costs can be saved, and the yield rate of products can be efficiently increased.
[0023]
As shown in the embodiment of FIGS. 3 and 5, the notch 73 of the surrounding wall 72 of the installation hole 71 of the above-mentioned stereotactic thin plate 7 is provided with a protruding plate 74 extending toward the inside of the hole. After the mounting of the keyboard is completed, the key hat 4 presses the bowl-shaped elastic plastic body 5 so that the outside of the bowl-shaped elastic plastic body 5 can be fixed by the installation hole 71 of the stereotactic thin plate 7 and its surrounding wall 72. The bottom edge of the elastic plastic body 5 can also simultaneously press the projection plate 74 of the stereotactic thin plate, and a good effect that the bowl-shaped elastic plastic body 5 and the stereotactic thin plate 7 are fixed to each other can be obtained.
[0024]
In addition, in the embodiment of the fixing device (localized thin plate 7) shown in FIGS. 6 to 8, the notch 73 is provided in the surrounding wall 72 of the localized thin plate, but the protruding plate 74 is not provided. 9 to 11 show an embodiment of the fixing device (localized thin plate 7) in which the surrounding wall 72 of the localized thin plate is formed continuously and integrally, and is not provided with the above-described notch and protruding plate.
Although the embodiments of the stereotactic thin plates are not provided with the projecting plate 74, they provide the function of directly installing the bowl-shaped elastic plastic body 5 by the installation holes 71 surrounded by the inside of the surrounding wall 72, Each of the shaped elastic plastic bodies has a function of independently fixing the position of each bowl-shaped elastic plastic body 5 by the surrounding wall 72. When compared to a continuous complete enclosure 72, the enclosure 72 with the notch 73 described above is easier to manufacture and shape.
[0025]
12 and 13 show an embodiment of the fixation device (stereotactic sheet 7) of the present invention, which has at least one protrusion projecting inwardly to the top of the enclosure 72 of the stereotactic sheet 7. The protrusions can be inserted into the installation hole 71 surrounding the soft bowl-shaped elastic plastic body 5 inside the surrounding wall 72, so that the bowl-shaped elastic plastic body 5 can effectively fall off from the top of the installation hole 71. This prevents the bowl-shaped elastic plastic body 5 from dropping out of the installation hole 71 during assembly.
[0026]
Although the preferred embodiments have been disclosed in the present invention as described above, they are not limited to the present invention in any way, and any person who is familiar with the technology can make various modifications within the spirit and scope of the present invention. Variations and hydration can be added, and the protection scope of the present invention is based on the contents specified in the claims.
[0027]
[Effect of the invention]
As can be seen from the preferred embodiment of the present invention described above, the fixing device for the keyboard-shaped elastic plastic body for a computer keyboard of the present invention provides a localization thin plate, and the surrounding wall provided at the periphery of the installation hole of the localization thin plate is The position of the bowl-shaped elastic plastic body set therein is fixed, and the bowl-shaped elastic plastic body does not fall off, so that there is no adverse continuity between the bowl-shaped elastic plastic bodies. And not only is its structure simple, but also its assembly and replacement are very simple, which can reduce the defective rate and the manufacturing cost.
[Brief description of the drawings]
FIG. 1 is an exploded view of a fixing device of a keyboard-shaped elastic plastic body for a computer and its related structure according to an embodiment of the present invention;
FIG. 2 is a perspective view showing the structure of the fixing device of FIG.
FIG. 3 is a perspective view showing a partial structure of the fixing device of FIG. 1;
4 is a perspective view showing a combination of the fixing device of FIG. 3 and a bowl-shaped elastic plastic body.
FIG. 5 is a cross-sectional view showing a combined structure of the fixing device and the bowl-shaped elastic plastic body of FIG.
FIG. 6 is a perspective view showing the structure of another embodiment of the fixing device of the present invention.
FIG. 7 is a perspective view showing a combination of the fixing device of FIG. 6 and a bowl-shaped elastic plastic body.
8 is a cross-sectional view showing a combination structure of the fixing device and the bowl-shaped elastic plastic body of FIG.
FIG. 9 is a perspective view showing a structure of a fixing device according to another embodiment of the present invention.
10 is a perspective view showing a combination of the fixing device of FIG. 9 and a bowl-shaped elastic plastic body.
11 is a cross-sectional view showing a combination structure of the fixing device and the bowl-shaped elastic plastic body of FIG.
FIG. 12 is a perspective view showing the structure of the fixing device according to another embodiment of the present invention.
13 is a cross-sectional view showing a combination structure of the fixing device and the bowl-shaped elastic plastic body of FIG.
FIG. 14 is a perspective view of a general computer keyboard.
FIG. 15 is an exploded view of one key in the computer keyboard of FIG. 14, showing the structure of a conventional bowl-shaped elastic plastic assembly plate.
FIG. 16 is a perspective view of the key of FIG. 15 when it is half assembled.
FIG. 17 is a perspective view when the key of FIG. 15 has been assembled.
FIG. 18 is a perspective view showing the structure of a bowl-shaped elastic plastic assembly plate of a computer keyboard according to the related art.
FIG. 19 is a partial cross-sectional view of one embodiment of the bowl-shaped elastic plastic assembly plate of FIG. 18 according to the prior art.
FIG. 20 is a partial cross-sectional view of another embodiment of the bowl-shaped elastic plastic assembly of FIG. 18 according to the prior art.
[Explanation of symbols]
A bowl-shaped elastic plastic assembly plate 1 metal plate base 11 lower pivot 12 lower activation groove 2 thin film switch circuit board 21 thin film switch 22 connection circuit 3 balancing mechanism 31 lower pivot 32 lower activation axis 33 upper pivot 34 upper activation axis 4 key hat 41 Upper pivot 42 Upper active groove 5 Bowl-shaped elastic plastic body 51 Center pillar 52 Bottom 6 Flat plate 61 Localization hole 62 Perforation 63 Adhesive 7 Fixing device (localized thin plate)
71 installation hole 72 surrounding wall 73 notch 74 protruding plate 75 positioning hole 76 protruding portion

Claims (5)

The computer keyboard has at least a metal plate base, a thin film switch circuit board, several balancing mechanisms, several key hats, and several bowl-shaped elastic plastic bodies,
The metal plate base is provided with several lower pivots and / or lower activity grooves extending upward,
The thin-film switch circuit board is installed on the base, and is provided with several thin-film switches and connection circuits,
Some of the balancing mechanisms are generally X-shaped balancing mechanisms, provided with a lower pivot and / or lower active axis and an upper pivot and / or upper active axis, said lower pivot and / or lower active axis being provided. Securing the shafts to the lower pivot and / or lower activity groove of said base respectively;
Several key hats are provided with an upper pivot and / or upper activity groove on the bottom surface, each of which is fixed to the upper pivot and / or upper activity axis of the balancing mechanism,
Several bowl-shaped elastic plastic bodies are provided between the key hat and the thin-film switch circuit board, and in a bowl-shaped elastic plastic body fixing device in which a central pillar is provided on an inner surface thereof,
The localization thin plate is installed on the thin film switch circuit board, and at the position corresponding to each of the thin film switches of the thin film switch circuit board, installation holes are respectively provided in the localization thin plates, and the edges of the installation hole face upward. A keyboard bowl for a computer, characterized in that the bowl-shaped elastic plastic body is installed in each of the installation holes, and the wall captures the bowl-shaped elastic plastic body and fixes its position. Device for fixing elastic plastic bodies. 2. The fixing device according to claim 1, wherein the surrounding wall is formed continuously and integrally. 2. The fixing device according to claim 1, wherein the wall is discontinuous and at least one notch is provided. 4. A fixing device for a keyboard bowl-shaped elastic plastic body for a computer according to claim 3, wherein a notch of said enclosing wall is provided with a projecting plate extending toward the inside of said hole. 2. The fixing device according to claim 1, wherein the top of the surrounding wall has at least one protrusion protruding inward.

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