JP5269839B2 - Keyboard cover, keyboard device, and information processing device - Google Patents

Description

  The present invention relates to a keyboard cover, a keyboard device, and an information processing device.

  Conventionally, as a keyboard cover for the purpose of dustproofing and waterproofing, for example, a silicone rubber sheet covering the entire key arrangement is generally provided with a shape that matches the unevenness between the keys (for example, shown below) Patent Document 1). Further, for example, in Patent Document 2, when using an individual rubber dome and pantograph as a configuration of each key, the pantograph is covered with the rubber dome, so that dust prevention, waterproofing, and the like are possible without requiring a keyboard cover. Techniques to do this are disclosed.

US Pat. No. 5,021,638 US Pat. No. 7,557,313

  However, when a rubber sheet is placed on the key arrangement as in a conventional keyboard cover, the vicinity of the portion in direct contact with the user is deformed separately from the depression of the key. For this reason, even if only a very thin keyboard cover is put on, there is a problem that the feeling at the time of typing given to the user may change significantly.

  Therefore, an object of the present invention is to provide a keyboard cover, a keyboard device, and an information processing device that can reduce a sense of discomfort at the time of typing given to a user.

  In order to achieve this object, a keyboard cover according to the present invention includes a cover sheet having plasticity, and a key cap provided on the cover sheet in accordance with a predetermined key arrangement.

  According to another aspect of the present invention, there is provided a keyboard apparatus comprising: a key configuration arranged according to a predetermined key arrangement; a housing that accommodates the key configuration in a typeable manner; and the keyboard cover.

  Furthermore, an information processing apparatus according to the present invention includes the above keyboard device.

  According to the present invention, since the key cap that is separate from the cover sheet is provided on the cover sheet, it is possible to give the user a feeling close to that when typing a conventional key. It is possible to realize a keyboard cover, a keyboard device, and an information processing device that can reduce discomfort during typing.

FIG. 1 is a perspective view showing a schematic configuration of an information processing apparatus according to an embodiment of the present invention. FIG. 2 is an exploded view showing a schematic configuration of the keyboard device according to the embodiment of the present invention. FIG. 3 is a top view showing an example of a part of the key arrangement in the keyboard according to the present embodiment. 4 is a cross-sectional view showing a schematic configuration of the AA cross section shown in FIG. FIG. 5 is a view for explaining attachment / detachment of the keyboard cover to / from the keyboard according to the present embodiment. FIG. 6 is a cross-sectional view showing a schematic configuration of a peripheral end portion of the keyboard device, which is a plane parallel to the AA cross section shown in FIG. 3. FIG. 7 is a cross-sectional view showing a schematic configuration of the peripheral end portion of the keyboard device according to the first modification of the present embodiment. FIG. 8 is a cross-sectional view showing a schematic configuration in the vicinity of a track point, which is a plane parallel to the AA cross section shown in FIG. FIG. 9 is a cross-sectional view showing a schematic configuration in the vicinity of a track point according to the second modification of the present embodiment. FIG. 10 is a cross-sectional view showing a schematic configuration in the vicinity of the button portion, which is a plane perpendicular to the AA cross section and the key arrangement surface shown in FIG. FIG. 11 is a schematic perspective view showing an excerpt of the mechanical configuration of the space key in the keyboard device of the present embodiment. FIG. 12 is an exploded view showing a schematic configuration of the space key in the keyboard device of the present embodiment. FIG. 13 is an exploded view showing a schematic configuration of each key according to the third modification of the present embodiment. FIG. 14 is a cross-sectional view showing a schematic configuration of the keyboard device according to the second embodiment of the present invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. In the following description, each drawing only schematically shows the shape, size, and positional relationship to the extent that the contents of the present invention can be understood. Therefore, the present invention is illustrated in each drawing. It is not limited to only the shape, size, and positional relationship. Moreover, in each figure, a part of hatching in a cross section is abbreviate | omitted for clarification of a structure. Furthermore, the numerical values exemplified below are merely preferred examples of the present invention, and therefore the present invention is not limited to the illustrated numerical values.

(Embodiment 1)
First, a keyboard cover, a keyboard device, and an information processing device according to Embodiment 1 of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a schematic configuration of the information processing apparatus according to the first embodiment. As shown in FIG. 1, the information processing apparatus 100 includes an information processing apparatus main body 101 such as a notebook personal computer, a keyboard apparatus 1 mounted on the information processing apparatus main body 101, and a keyboard cover 10 that covers the keyboard apparatus 1. . The keyboard cover 10 is detachably attached to the keyboard device 1. A space between the external housing of the information processing apparatus main body 101 and the keyboard device 1 is covered with, for example, a peripheral portion of the keyboard cover 10 so that a joint or a gap is not exposed. This prevents liquid, dust, and the like from entering the keyboard device 1 and the information processing device 100.

  Here, the keyboard device 1 is attached to the information processing apparatus 100 in the same specification as a general keyboard device. This makes it possible to easily mount the keyboard device 1 according to the first embodiment without changing the specification of the information processing apparatus 100 from the conventional one.

  Next, the keyboard device 1 according to the first embodiment will be described in detail with reference to the drawings. FIG. 2 is an exploded view showing a schematic configuration of the keyboard device according to the first embodiment. However, in FIG. 2, for simplification of description, the mechanical configuration and electrical configuration of each key are omitted, and the main part of each layer is extracted and shown. In this description, the user-side surface of each member is the front surface, and the surface opposite to the front surface is the back surface.

  As shown in FIG. 2, the keyboard device 1 has a configuration in which a frame 17 is fixed to the outer periphery of the mounting surface side of the base plate 18. The keyboard cover 10 has a configuration that can be attached to and detached from the frame 17, for example.

  The base plate 18 is a lower housing of the keyboard device 1 and is made of, for example, a pressed aluminum plate or a molded plastic. The base plate 18 includes a main key arrangement portion 18c where keys such as alphabets, numbers and symbols are arranged, a function key arrangement portion 18d where function keys and other keys are arranged, and buttons 17h of a pointing device such as a touch pad. And a button arrangement portion 18b in which are arranged. On the bottom of the base plate 18, a membrane sheet C (see, for example, FIG. 4) that is an electrical configuration of each key and button is placed. On the membrane sheet C, the mechanical configuration of each key such as the pantograph 15 and the rubber dome 16 (see, for example, FIG. 4) is arranged. In this description, the electrical configuration such as the membrane switch (part of the membrane sheet C) and the mechanical configuration such as the pantograph 15 and the rubber dome 16 are collectively referred to as a key configuration.

  The frame 17 on the base plate 18 is a frame body of the keyboard device 1. The base plate 18 and the frame 17 constitute a housing that accommodates key configurations arranged according to a predetermined key arrangement so that they can be typed. The frame 17 is made of, for example, molded plastic. The frame 17 includes a main key frame portion 17f that surrounds the main key arrangement portion 18c of the base plate 18, a function key frame portion 17g that surrounds the function key arrangement portion 18d and covers a gap between keys, and a button 17h of a pointing device. Button part 17e provided. Further, a plurality of post-shaped protrusions 17 b are provided on the back surface of the frame 17. The protrusions 17b are inserted into a plurality of holes 18a provided in the base plate 18, respectively. Thereby, the frame 17 is fixed to the base plate 18. The protrusion 17b may be thermocompression bonded to the hole 18a.

  The housing formed by the base plate 18 and the frame 17 is covered with a keyboard cover 10 at a key-constituting portion. Specifically, the keyboard cover 10 includes a main key cover part 11h that covers an area enclosed by the main key frame part 17f, a function key cover part 11i that covers an area enclosed by the function key frame part 17g, and a button part 17e. A button cover portion 11g for covering. However, the keyboard cover 10 according to the first embodiment may include at least one of the main key cover part 11h, the function key cover part 11i, and the button cover part 11g.

  The keyboard cover 10 is formed of a material having plasticity such as silicone. A plurality of post-shaped protrusions 11 d are provided on the back surface of the keyboard cover 10, for example, near the outer edge. The protrusions 11d are inserted into a plurality of holes 17a provided in the frame 17, for example, so that they can be inserted and removed. Thereby, the accommodation space formed by the base plate 18, the frame 17, and the keyboard cover 10 is sealed in a liquid-tight manner. However, for example, the button part 17e may not be sealed by the button cover part 11g. In addition, the keyboard cover 10 may be provided with a hole 11e for mounting the rubber cap 21 of the TrackPoint (registered trademark) 20 on the post cover 22 on the base plate 18 side, for example. The hole 11 e is sealed in a liquid-tight manner, for example, by mounting the rubber cap 21.

  As described above, in the first embodiment, the keyboard cover 10 that can liquid-tightly seal the housing space that houses the key structure is detachable from the keyboard device 1. Thereby, since it can prevent that a liquid, dust, etc. approach into keyboard device 1, it becomes possible to keep keyboard device 1 itself highly hygienic and long life. In addition, since it is easy to remove the keyboard cover 10 and wipe or wash it, the portion of the keyboard device 1 touched by the user can be kept more hygienic.

  Here, a material having an antibacterial action may be used as the deformable cover sheet 11 (for example, see FIG. 4) of the keyboard cover 10. As a result, it becomes possible to keep the keyboard part directly touched by the user with higher hygiene, so that the user is contaminated during work even in use in cases where high hygiene is required, such as surgery. It can be reduced or prevented. Note that as the material having an antibacterial action, for example, a general plastic material such as a mixture of powdered silver (Ag) in silicone can be used.

  Further, in the first embodiment, the key cap 13 corresponding to each key is adhered to the cover sheet 11 according to the key arrangement, for example, on the back surface. By attaching a key cap 13 separate from the cover sheet 11 to the cover sheet 11 and integrating them, the first embodiment can give the user a feeling close to that when typing a conventional key. Therefore, it is possible to reduce a sense of incongruity when the user feels the type. Further, the key cap 13 may be formed of a material harder than the cover sheet 11, for example. This makes it possible to bring the feel when typing the key closer to the conventional feel. For example, materials harder than the cover sheet 11 made of silicone include plastics such as PET and metals such as aluminum.

  Next, the configuration of the keyboard device 1 will be described in detail below with reference to the drawings. FIG. 3 is a top view showing an example of a part of the key arrangement in the keyboard according to the first embodiment. 4 is a cross-sectional view showing a schematic configuration of the AA cross section shown in FIG. FIG. 5 is a diagram for explaining attachment / detachment of the keyboard cover to / from the keyboard according to the first embodiment. In FIG. 3, the keyboard cover is omitted for simplification of description.

  As shown in FIG. 3, the keyboard device 1 according to the first embodiment has a configuration in which the key caps 13 are two-dimensionally arranged. That is, each key configuration of the keyboard device 1 is two-dimensionally arranged like a general keyboard. Further, the key cap 13 is provided with one or more holes 13a into which positioning protrusions 11a provided on the back surface of the keyboard cover 10 described later are inserted. In FIG. 3, as an example, holes 13 a are provided in the vicinity of the four corners of the upper surface of the keycap 13 when viewed from above the keycap 13.

  Next, a schematic configuration of the keyboard device 1 will be described with reference to FIG. As shown in FIG. 4, in the keyboard device 1, a membrane sheet C in which membrane switches are arranged in accordance with a key arrangement is placed on a base plate 18 that is a lower housing. On the membrane sheet C, a pantograph 15 and a rubber dome 16 as a mechanical configuration of each key are arranged. Here, the rubber dome 16 may not be an individual key but may be a sheet-like one integrated with a plurality of keys (for example, a main key or the entire key). A spill sheet 19 is attached to the back surface of the base plate 18 to prevent liquid or the like flowing into the keyboard device 1 from flowing into an electric circuit or the like under the keyboard device 1.

  In each key, the key stage 14 is supported by a rubber dome 16 shown in FIG. A pair of side sides opposed to each other when viewed from the upper surface side of the key stage 14 is provided with a receiving portion 14 a that engages with a claw portion 15 a on the upper end side of the pantograph 15. The pantograph 15 expands and contracts in a state in which the claw portion 15a and the receiving portion 14a are engaged, thereby moving the key stage 14 in the vertical direction while maintaining it substantially horizontal. In addition, in order to reduce the frictional resistance with the membrane sheet C, the lower end which is a foot | leg part of the pantograph 15 is good to provide the low friction part 15b of the round shape, for example.

  The keyboard cover 10 according to the first embodiment includes a key cap 13 that is individually covered on the key stage 14 and a cover sheet 11 that covers the keyboard device 1 in a substantially liquid-tight manner. Between the key caps 13 in the cover sheet 11, there are deformed portions 11 b that deform according to the unevenness between the key caps 13. By providing the deforming portion 11b, it is possible to reduce a change in the feeling of typing caused by the cover sheet 11.

  On the back surface of the cover sheet 11, as described above with reference to FIG. 3, a protrusion 11 a that is inserted into the hole 13 a of the key cap 13 is provided. The protrusion 11a protrudes to the back side of the key cap 13 through the hole 13a. A portion protruding from the back surface of the key cap 13 is detachably inserted into a hole 14c provided in the key stage 14, for example, as shown in FIG. Thus, the individual key caps 13 are positioned together with the cover sheet 11 with respect to the corresponding key stage 14. In addition, the part which protruded from the back surface of the key cap 13 in the protrusion 11a may have a hook shape that is detachably engaged with the hole 14c of the key stage 14, and may be a cylindrical shape that is simply inserted into the hole 14c.

  Returning to FIG. The key cap 13 is adhered to the back surface of the cover sheet 11 using an adhesive 12 such as a silicone resin. At this time, it is preferable that the adhesive 12 does not protrude from the upper surface of the keycap 13. Thereby, it can prevent that the side surface of the keycap 13 and the deformation | transformation part 11b of the cover sheet 11 adhere | attach, and the function of the deformation | transformation part 11b falls.

  Here, when the cover sheet 11 is formed of, for example, a transparent or translucent material, alphabets and numbers assigned to the keys are printed on the upper surface of the key cap 13 in the same manner as a normal keyboard. Good. At this time, a transparent or translucent material may be used for the adhesive 12 that bonds the cover sheet 11 and the key cap 13. On the other hand, when the cover sheet 11 is formed of an opaque material, alphabets and numbers assigned to the keys are preferably printed on the surface of the cover sheet 11 at positions corresponding to the keys.

  Next, the configuration for fixing the peripheral end of the keyboard cover 10 to the base plate 18 will be described in detail with reference to the drawings. FIG. 6 is a cross-sectional view showing a schematic configuration of a peripheral end portion of the keyboard device, which is a plane parallel to the AA cross section shown in FIG. 3. As shown in FIG. 6, a deformed portion 11 b is provided at the peripheral end portion of the keyboard cover 10, and a plurality of post-shaped protrusions 11 d are provided outside the deformed portion 11 b. The protrusion 11d is inserted into a hole 17a provided in the frame 17 so as to be freely inserted and removed. Thereby, the keyboard cover 10 is fixed to the frame 17. A plurality of post-like protrusions 17 b provided on the back surface of the frame 17 are inserted into holes 18 a provided in the base plate 18. Thereby, the keyboard cover 10 is fixed to the base plate 18 together with the frame 17. However, the keyboard cover 10 is detachable from the frame 17.

  Note that the peripheral end of the keyboard cover 10 may not be fixed to the frame 17. For example, as in Modification 1 shown in FIG. 7, the peripheral end portion 111 d of the cover sheet 111 may only be placed on the frame 171. FIG. 7 is a cross-sectional view showing a schematic configuration of the peripheral end portion of the keyboard device according to the first modification of the first embodiment. Even in this case, as long as the adhesion between the two can be ensured, the accommodation space formed by the base plate 181, the frame 171, and the cover sheet 111 can be liquid-tightly sealed. Note that the adhesion between the cover sheet 111 and the frame 171 can be enhanced by, for example, static electricity or magnetism. Even in this case, the frame 171 may be fixed to the base plate 181 using the protrusions 171b and the holes 181a.

  Next, the configuration near the track point 20 in the keyboard device 1 will be described in detail with reference to the drawings. FIG. 8 is a cross-sectional view showing a schematic configuration in the vicinity of a track point, which is a plane parallel to the AA cross section shown in FIG. However, in FIG. 8, the configuration of the switch unit that detects the operation of the track point 20 is omitted for simplification of description. As shown in FIG. 8, the track point 20 includes a post 22 a that is an operation portion that protrudes from the accommodating portion 18 e formed in the base plate 18 through the membrane sheet C, and a portion that protrudes from the post membrane sheet C of the post 22 a. And a post cover 22 to be mounted. The post cover 22 is passed through the hole 11e of the cover sheet 11 and protrudes to the surface side. As described above, for example, a rubber cap 21 having an uneven surface is fitted on the protruding portion. Thereby, the hole 11e of the cover sheet 11 is liquid-tightly sealed.

  However, the rubber cap 21 of the track point 20 may not be configured to be directly touched by the user. For example, the structure covered with the cover sheet | seat 11 may be sufficient like the modification 2 shown in FIG. FIG. 9 is a cross-sectional view showing a schematic configuration near the track point according to the second modification of the first embodiment.

  Next, the configuration near the button portion 17e in the keyboard device 1 will be described in detail with reference to the drawings. FIG. 10 is a cross-sectional view showing a schematic configuration in the vicinity of the button portion, which is a plane perpendicular to the AA cross section and the key arrangement surface shown in FIG. However, in FIG. 10, the configuration of the switch unit that detects the click of the button unit 17 e is omitted for simplification of description. As shown in FIG. 10, the button portion 17e includes a button 17h, a rotation shaft 17i of the button 17h, and a hook portion 17j that hooks the button 17h on the rotation shaft 17i. The button part 17e is covered by a button cover part 11g extending from a part on the key cap 23 such as a space key in the cover sheet 11. The button cover portion 11g may not be fixed by the protrusion 11d or the like. However, it is preferable that the button cover portion 11g extends to the lower end portion of the button 17h. Thereby, it is possible to reduce the entry of liquid, dust, and the like from this portion.

  Next, the configuration of the space key in the keyboard device 1 will be described in detail with reference to FIG. 10, FIG. 11, and FIG. FIG. 11 is a schematic perspective view showing an excerpt of the mechanical configuration of the space key in the keyboard device according to the first embodiment. FIG. 12 is an exploded view showing a schematic configuration of the space key in the keyboard device according to the first embodiment.

  As shown in FIGS. 10 to 12, the space key includes a stabilizer 25 that matches the size of the space key, in addition to the pantograph 15 and the rubber dome 16 that are the same as the other keys. This stabilizer 25 includes, for example, a first stabilizer 25a obtained by bending a rod-shaped member such as aluminum having high rigidity into a rectangular shape, and a second stabilizer 25b obtained by further bending the distal end portion 25b-1 of the rod-shaped member that is also folded into a rectangular shape. And more. Further, the key stage 24 supported by the pantographs 15 and 25 and the rubber dome 16 has a configuration similar to that of the key stage 14, and further includes a stabilizer 25 on the outer side of the receiving part 14 a to which the claw part 15 a of the pantograph 15 is engaged. A holding portion 24c that rotatably holds the central portion of each of the first stabilizer 25a and the second stabilizer 25b is provided. The tip of the first stabilizer 25a abuts on a stopper 26 provided on the membrane sheet C side. On the other hand, the bent front end portion 25b-1 of the second stabilizer 25b is engaged with an engaging portion 27 provided on the membrane sheet C side. In this way, by using one or more stabilizers (25a and 25b) separately from the pantograph 15, even a key that is wider than other keys (for example, the space key) can be made substantially horizontal. It can be moved in the vertical direction while maintaining.

  As shown in FIGS. 11 and 12, one or more holes 24 b are provided on the surface of the key stage 24. As shown in FIG. 12, a projection 23a provided on the back surface of the key cap 23 that is not fixed to the cover sheet 11 is fitted into the hole 24b so as to be freely inserted and removed. Therefore, the key head 23A is fixed to the cover sheet 11 instead of the key cap. On the back surface of the key head 23A, there is provided a protrusion 23b that can be removably fitted into a hole provided on the surface of the key cap 23. However, the protrusion 23b may be the same as the protrusion 11a. In this case, the key head 23A is provided with a hole into which the protrusion 11a is inserted.

  In the first embodiment described above, the case where all the protrusions protruding on the back surface of the key cap 13 are the protrusions 11d on the back surface of the cover sheet 11 is taken as an example. However, the present invention is not limited to this. As in Example 3, a part of the protrusion that protrudes from the back surface of the key cap 13 may be a protrusion 13 b that is integral with the key cap 13, and this may be inserted into the hole 14 b of the key stage 14. FIG. 13 is an exploded view showing a schematic configuration of each key according to the third modification of the first embodiment. With this configuration, it is possible to reduce stress such as rubbing that occurs between the cover sheet 11 and the key cap 13, and therefore it is possible to further improve the durability of the keyboard cover 10.

  As described above, in the first embodiment, since the key cap 13 that is harder than the cover sheet 11 is bonded and integrated with the cover sheet 11, a feeling close to that when typing a conventional key is given to the user. It becomes possible. As a result, it is possible to reduce the uncomfortable feeling when the user feels the type.

(Embodiment 2)
Next, a keyboard cover, a keyboard device, and an information processing device according to Embodiment 2 of the present invention will be described in detail with reference to the drawings. In the above-described first embodiment, the case where the key cap 13 is bonded to the back surface of the cover sheet 11 is taken as an example. On the other hand, in this Embodiment 2, the case where the keycap 13 is adhere | attached on the surface of the cover sheet 11 is mentioned as an example. In the following description, the same components as those in the first embodiment described above are denoted by the same reference numerals, and redundant description thereof is omitted.

  FIG. 14 is a cross-sectional view showing a schematic configuration of the keyboard device according to the second embodiment. 14 shows a cross section corresponding to FIG. As shown in FIG. 14, in the keyboard device 2 according to the second embodiment, the cover sheet 31 is placed directly on the key stage 14. On the back surface of the cover sheet 31, a protrusion 31a to be inserted into the hole 14c of the key stage 14 is provided. A key cap 33 is bonded to the upper surface of the cover sheet 31 using the adhesive 12. Except for the part to which the key cap 33 is bonded, it functions as a deformed portion 31b similar to the deformed portion 11b. The above-described configuration is not limited to the main key, and the same can be applied to function keys and other keys.

  Even with the configuration as described above, since the key cap 13 that is harder than the cover sheet 11 is bonded to the cover sheet 11 and integrated as in the first embodiment, the conventional key is typed. It is possible to give the user a feeling close to the feeling. As a result, it is possible to reduce the uncomfortable feeling when the user feels the type.

  Other configurations are the same as those in the first embodiment described above or the modifications thereof, and thus detailed description thereof is omitted here.

  In addition, the above-described embodiment and its modifications are merely examples for carrying out the present invention, and the present invention is not limited to these, and various modifications according to specifications and the like are within the scope of the present invention. Furthermore, it is obvious from the above description that various other embodiments are possible within the scope of the present invention. For example, it is needless to say that the modification examples illustrated as appropriate for each embodiment can be applied to other embodiments.

1, 2 Keyboard device 10 Keyboard cover 11, 31, 111 Cover sheet 11a, 11d, 13b, 17b, 23a, 23b, 31a, 171b Protrusion 11b, 31b Deformed portion 11e, 13a, 14b, 14c, 17a, 18a, 24b, 181a Hole 11h Main key cover part 11i Function key cover part 11g Button cover part 12 Adhesive 13, 23, 33 Key cap 14, 24 Key stage 14a Receiving part 15 Pantograph 15a Claw part 15b Low friction part 16 Rubber dome 17, 171 Frame 17e Button part 17f Main key frame part 17g Function key frame part 17h Button 17i Rotating shaft 17j Hanging part 18, 181 Base plate 18b Button arrangement part 18c Main key arrangement part 18d Connection key arrangement portion 18e Storage portion 19 Spill sheet 20 Track point 21 Rubber cap 23A Key head 24c Holding portion 25 Stabilizer 25a First stabilizer 25b Second stabilizer 25b-1 Tip portion 26 Stopper 27 Engagement portion 100 Information processing device 111d Peripheral end Part

Claims (6)

A keyboard cover for covering the keyboard device,
A cover sheet with plasticity;
A key cap provided on the cover sheet in accordance with a predetermined key arrangement;
Protruding from the back surface of the cover sheet and having a hole provided in a housing of the keyboard device that accommodates a key configuration arranged according to the predetermined key arrangement, and a protrusion that can be removably fitted to the keyboard device. keyboard cover, wherein Rukoto detachably mounted Te.   The keyboard cover according to claim 1, wherein the key cap is harder than the cover sheet.   3. The keyboard cover according to claim 1, wherein the key cap is adhered to a back surface or a front surface of the cover sheet.   4. The projection according to claim 1, further comprising a protrusion that protrudes from a back surface of the key cap and that can be removably fitted into a hole provided on an upper surface of the key configuration arranged according to the predetermined key arrangement. The keyboard cover according to one.   A key arrangement arranged according to a predetermined key arrangement;
  A housing for accommodating the key configuration in a typeable manner;
  A keyboard cover according to any one of claims 1 to 4,
  A keyboard device comprising:   An information processing apparatus comprising the keyboard device according to claim 5.

Images