JP2015099454A - Portable computer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable computer which is excellent in usability, which is capable of preventing a rattle when input buttons are operated.SOLUTION: A portable computer 10 includes: a display part 20 formed with a display device 21 at a second upper surface 51b side; and an input part 30 disposed at the front side of the display part 20, and formed with a plurality of input buttons 32 at a first upper surface 51a side. The input part 30 has an extended portion 60 extended to the front side of a front end portion 33 of input buttons 32a arranged at the frontmost side, and the extended portion 60 has a curved surface 61 smoothly curved downward from a position in the periphery of the front end portion 33 to the front side. Thus, a site near the wrist of the palm of a user hardly hits the portable computer 10 so that it is possible to prevent a rattle when the input buttons 32 are operated.

Description

  The present invention relates to a portable computer.

  2. Description of the Related Art Conventionally, an electronic desk calculator (generally referred to as a calculator) mainly used on a desk has been widely used (see, for example, Non-Patent Document 1).

  In general, a portable computer such as a calculator includes a display unit and an input unit on the front side of the display unit, and is used by being placed on a mounting surface such as a desk. The user presses a plurality of input buttons constituting the input unit with a finger to input information such as numbers, and confirms the calculation result calculated based on the input information on the screen of the display unit.

  By the way, there is a demand for a portable computer with high usability that can operate an input button more quickly and more accurately.

  However, the conventional portable computer has a structure in which a user's hand (particularly a portion on the wrist side of the palm) is likely to hit the upper surface on the near side of the input button when inputting numbers or the like. For this reason, when the user presses the upper surface on the front side of the input button downward, the portable computer may be rattled when the input button is operated. In this case, it becomes difficult to operate the input button quickly and accurately. Therefore, there is a need for a technique that prevents the portable computer from rattling when the input button is operated, and further improves the usability of the portable computer.

[Online], Internet <URL: http://casio.jp/dentaku/products/honkaku/honkaku/

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a portable computer that can prevent rattling during operation of an input button and is excellent in usability.

  In order to solve the above-described problem, an invention according to a first aspect of the present invention is a portable computer, a display unit provided with a display device on an upper surface side, and a front side of the display unit, An input part provided with a plurality of input buttons on the upper surface side, the input part has an extension part extending to the front side from the front side end part of the input button arranged on the most front side, The extending portion has an upper surface shape that curves downward from a position near the front end portion of the input button toward the front side.

Preferably, the extending portion has a lower surface shape that is inclined upward from a position on the lower surface side near the front end portion of the input button toward the front side, and the input portion is in the vicinity of the display portion. On the lower surface side, the leg portion that can be taken in and out by rotating is provided.
Preferably, the input unit has rubber feet on the lower surface side near the front end of the input button, on the side where the input button is arranged with reference to the front end of the input button.

  According to the present invention, it is possible to provide a portable computer that can prevent rattling during operation of an input button and is excellent in usability.

1 is a perspective view of a portable computer according to an embodiment of the present invention. FIG. 2 is a right side view of the portable computer shown in FIG. 1. It is a top view of the portable computer shown by FIG. (A) is an A arrow view of FIG. 3 and a front view of a portable computer, (b) is an arrow B view of (a) and a bottom view of the portable computer. It is CC sectional view taken on the line of FIG. It is the DD sectional view taken on the line of FIG. It is the E section enlarged view of FIG. It is a figure explaining the effect | action of a portable computer. (A) is the F section enlarged view of FIG. 7, (b) is a figure which shows a 1st comparative example, (c) is a figure which shows a 2nd comparative example.

(Embodiment)
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as “embodiments”) will be described in detail with reference to the accompanying drawings. The same number is attached | subjected to the same element through the whole description of embodiment. The drawings are viewed in the direction of the reference numerals. In the embodiment, “up”, “down”, “left”, and “right” respectively indicate directions when the user faces the portable computer, and “front” and “back” The “front” side and the “back” side when the user faces the portable computer are shown.

(Overall configuration of portable computer 10)
The overall configuration of the portable computer 10 will be described with reference to FIG.
As shown in FIG. 1, the portable computer 10 of the embodiment is a substantially flat calculator that is placed on a placement surface (an example of a table) 11 and performs four arithmetic operations, mixing, application calculation, and the like. Unit 20 and an input unit 30 provided on the front side of the display unit 20 (corresponding to the “near side” in the present invention). The portable computer 10 has a main body case 40 including a lower case 41 and an upper case 51. The main body case 40 constitutes the base of each of the display unit 20 and the input unit 30 and accommodates various electronic components (for example, a circuit board) inside.

(Configuration of each part of the portable computer 10)
The configuration of each part of the portable computer 10 will be described with reference to FIGS.

(Configuration of lower case 41)
As shown in FIG. 2, the lower case 41 includes a first lower surface 41 a that forms the lower surface side of the input unit 30, a second lower surface 41 b that forms the lower surface side of the display unit 20, and the first lower surface 41 a. And left and right side surfaces 41 c that are bent upward from the left and right side edges of the second lower surface 41 b and fit to the upper case 51. The second lower surface 41b is formed as a surface that is inclined rearwardly upward from the rear end of the first lower surface 41a.

(Configuration of upper case 51)
On the other hand, the upper case 51 has a first upper surface 51 a that forms the upper surface side of the input unit 30 and a second upper surface 51 b that forms the upper surface side of the display unit 20. The first upper surface 51a is opposed to the first lower surface 41a and is inclined rearward and upward with a predetermined inclination angle θ1 with respect to the first lower surface 41a. Further, the second upper surface 51b is opposed to the second lower surface 41b, and is greatly inclined backward and upward relative to the first lower surface 41a by a predetermined inclination angle θ2 relative to the first upper surface 51a.

  Thus, in the portable computer 10, the first upper surface 51a and the second upper surface 51b are inclined rearward and upward with respect to the first lower surface 41a, so that the input unit 30 and the display unit 20 are on the user side. Configured to face.

(Configuration of display unit 20)
As illustrated in FIG. 3, the display unit 20 includes a display device 21 including a flat display element such as a liquid crystal display element or an EL (electroluminescence) display element. The display device 21 is provided near the lower part of the upper case 51 on the second upper surface 51b side, and displays numbers, characters, and symbols representing input information from the input unit 30 and calculation processing results, etc., electro-optically. A solar panel 22 that receives external light and generates electric power may be provided near the upper part on the second upper surface 51b side.

(Configuration of input unit 30)
The input unit 30 includes a plurality of switches 31 including a mode switch for setting the number of decimal digits and the like, and a plurality of input buttons (keys) 32. The number and arrangement pattern of the plurality of switches 31 and the plurality of input buttons 32 are not particularly limited to this example, and can be arbitrarily set.

  The plurality of input buttons 32 include various buttons for inputting numbers and the like. The input buttons 32 are regularly arranged on the first upper surface 51a side of the upper case 51 along the front-rear direction and the left-right direction, and are configured to be exposed from the first upper surface 51a.

  Further, the input unit 30 is connected to the front end portion (the “front side end portion” according to the present invention) of the input button (corresponding to the “input button disposed at the most front side” according to the present invention) 32a. Corresponding) It has an extended portion 60 extending in front of 33. A detailed configuration of the extending portion 60 will be described later. The input button 32a arranged on the foremost side is formed with a convex curved surface such that the upper surface of the button (key top) is slightly raised at the center, while the upper surfaces of the other keys 32 are key tops. It is formed with a curved surface with a slightly concave center.

(Configuration of rubber feet 35 and leg portions 36)
As shown in FIGS. 4A and 4B, the input unit 30 includes rubber feet 35 and legs 36 on the first lower surface 41a side.

  The rubber foot 35 is a member that prevents the portable computer 10 from slipping on the placement surface 11 (see FIG. 2) by having its lower surface grounded to the placement surface 11 (see FIG. 2). This rubber foot 35 is provided on the first lower surface 41a side in the vicinity of the front end portion 33 (see FIG. 2) on the side where the input button 32 is arranged with reference to the front end portion 33 (see FIG. 2). The number and shape of the rubber feet 35 are arbitrary, but in this example, two oval rubber feet 35 are arranged at the left and right ends of the first lower surface 41a in a plan view long in the left-right direction. The constituent material of the rubber foot 35 can be arbitrarily selected from various rubber materials.

  The leg part 36 is comprised by the substantially rectangular member long in the left-right direction, and is arrange | positioned at the 1st lower surface 41a side of the display part 20 vicinity. The first lower surface 41 a is provided with a concave portion 37 formed in accordance with the outer shape of the leg portion 36. The leg portion 36 is configured such that a long side portion 36a on the base end side is rotatably provided, and can be inserted into and removed from the recess 37 by rotating around the long side portion 36a on the base end side.

  As shown in FIG. 5, in the usage form of the portable computer 10 when the leg portion 36 is stood out from the recess 37, the rubber feet 35 are grounded to the placement surface 11 at the front portion of the first lower surface 41a. The long side portion 36b on the distal end side of the leg portion 36 is in contact with the placement surface 11 at the rear portion of the first lower surface 41a. In this case, the front edge 40 a of the main body case 40 is not grounded to the placement surface 11. As a result, the rear portion of the first lower surface 41a floats from the placement surface 11, and the first lower surface 41a is inclined rearward and upward at a predetermined inclination angle θ3. In the usage mode in which the legs 36 are thus erected, each of the first upper surface 51a and the second upper surface 51b inclines further rearwardly by the inclination angle θ3 in addition to the inclination angle θ1 and the inclination angle θ2. As a result, the display unit 20 and the input unit 30 are further tilted toward the user side, so that the user can more easily see the display unit 20 and the input unit 30.

  In addition, when the leg part 36 is stored in the recessed part 37, the convex part 38 provided in the rear side vicinity of the leg part 36 can be grounded on the mounting surface 11 (refer FIG. 6). The convex portion 38 is, for example, a portion projecting downward from the first lower surface 41 a with a projection amount smaller than the height of the leg portion 36 in the short side direction, and is a rib shape extending in the left-right direction in the vicinity of the rear side of the concave portion 37. Formed. When the leg portion 36 is retracted, the rubber foot 35 contacts the mounting surface 11 at the front portion of the first lower surface 41a, and the lower end of the convex portion 38 contacts the mounting surface 11 at the rear portion of the first lower surface 41a. To do.

(Configuration of the extension 60)
As shown in FIG. 7, the extending portion 60 is a portion extending to the front side from the front end portion 33, and is a curved surface that gently curves downward from the position near the front end portion 33 toward the front side (according to the present invention). (Corresponding to an “upper surface shape”) 61. In this example, the curved surface 61 is formed on the first upper surface 51 a from the position near the front end portion 33 to the front edge 40 a of the main body case 40. The curved surface 61 is a convex curved surface formed in a front downward direction, and is formed over the entire width direction of the upper case 51.

  Further, the extending portion 60 has an inclined surface 62 (corresponding to the “lower surface shape” in the present invention) 62 that gently slopes upward from the position on the first lower surface 41 a side near the front end portion 33 toward the front side. . In this example, the inclined surface 62 is formed on the first lower surface 41 a from the position near the front end portion 35 a of the rubber foot 35 to the front edge 40 a of the main body case 40. The inclined surface 62 is a surface that is formed to rise frontward and is formed over the entire width direction of the lower case 41.

(Example of main dimensions)
Although the main dimensions of the portable computer 10 configured as described above can be arbitrarily set, the portable computer 10 is suitable for a portable computer having a relatively large external dimension. More specifically, when the input button 32 is operated with a finger, it is suitable for a portable computer having a size in which a portion 63 (see FIG. 8) near the wrist of the user's palm is located in the vicinity of the extension 60. . The main dimensions when applied to this type of portable computer are exemplified. For example, the length L1 (see FIG. 2) of the display unit 20 of the portable computer 10 is about 70 mm, and the length L2 of the input unit 30 (FIG. 2). The width W (see FIG. 3) of the display unit 20 and the input unit 30 is about 155 mm.

(Effect of embodiment)
The effects of the embodiment described above will be described with reference to FIGS.
FIG. 8 is a diagram for explaining the function and effect of the portable computer 10. FIG. 9A is an enlarged view of a portion F in FIG. 8, FIG. 9B is a diagram showing a first comparative example, and FIG. 9C is a diagram showing a second comparative example.

  In the portable computer 10 of the embodiment, the upper surface shape that gently curves downward is formed in the extending portion 60 that extends to the front side from the position near the front end portion 33 of the input button 32a that is disposed on the most front side. .

  As a result, as shown in FIGS. 8 and 9A, the portion 63 near the wrist of the user's palm is less likely to hit the portable computer 10 (more specifically, the curved surface 61).

  On the other hand, as shown in FIG. 9B, in the portable computer 100 of the first comparative example formed along the substantially horizontal plane without curving the front upper surface 102 of the main body case 101, the input button 32 is When the operation is performed, a portion 63 near the wrist tends to hit the protruding upper surface 102. For this reason, when the upper surface 102 is pushed downward by the part 63 near the wrist, the portable computer 100 is inclined with the front edge 105 of the lower surface 103 as a fulcrum so that the rear portion of the lower surface 103 is lifted from the placement surface 11. There may be a case where the portable computer 100 is wobbled.

  In this regard, in this embodiment, as shown in FIG. 9A, the curved surface 61 is formed so as to escape from the portion 63 near the wrist, and the portion 63 near the wrist of the palm is difficult to hit the main body case 40. The rattling of the portable computer 10 is prevented. Therefore, it is possible to provide the portable computer 10 that can prevent rattling when operating the input button 32 and is excellent in usability.

  In addition, in the present embodiment, the extending portion 60 is provided with the inclined surface 62 that gently slopes upward from the position near the front end portion 35a of the rubber foot 35 to the front side.

  As a result, even when the portable computer 10 is used with the legs 36 (see FIG. 8) tilted, the front edge 40a of the main body case 40 is mounted as shown in FIG. 9 (a). It does not interfere with the placement surface 11.

  Consider the configuration of a second comparative example in which the lower surface 112 of the main body case 111 is formed without being inclined to the front edge 113 as shown in FIG. In the case of the extending portion 115 of the second comparative example, when the portable computer 110 is used while being tilted, the front edge 113 close to the placement surface 11 is simply lowered, and therefore the front edge 113 and the placement surface. 11 may interfere. In this case, the rubber foot 35 floats from the mounting surface 11, and it becomes difficult to sufficiently obtain the anti-slip effect by the rubber foot 35.

  In this regard, according to the present embodiment, even when the portable computer 10 is used with the legs 36 (see FIG. 8) extended, as shown in FIG. Interference between the front edge 40a of the main body case 40 and the mounting surface 11 can be avoided by the inclined surface 62 that is gently inclined toward the mounting surface, and the rubber feet 35 can be brought into firm contact with the mounting surface 11. Therefore, the slip prevention effect by the rubber feet 35 can be obtained with certainty.

  As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. Further, it is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

The claims appended at the time of filing this application will be appended below.
[Claim 1]
A portable computer,
A display unit provided with a display device on the upper surface side;
An input unit provided with a plurality of input buttons on the front side and the upper surface side of the display unit,
The input part has an extending part extending to the near side from the near side end part of the input button arranged on the most near side;
The portable computer according to claim 1, wherein the extending portion has an upper surface shape that curves downward from a position near the front end portion of the input button toward the front side.
[Claim 2]
The extending portion has a lower surface shape that is inclined upward from the position on the lower surface side near the front end portion of the input button toward the front side,
2. The portable computer according to claim 1, wherein the input unit has a leg portion that can be moved in and out by rotating on the lower surface side in the vicinity of the display unit.
[Claim 3]
The input unit has a rubber foot on the lower surface side near the front end of the input button, on the side where the input button is arranged with reference to the front end of the input button. The portable computer according to claim 1 or 2.
[Claim 4]
The input button arranged on the foremost side of the input unit is formed with a convex curved surface such that the upper surface of the button is raised at the center. A portable calculator.

DESCRIPTION OF SYMBOLS 10 ... Portable computer, 20 ... Display part, 21 ... Display apparatus, 30 ... Input part, 32 ... Input button, 32a ... Input button arranged on the most front side (most Input buttons arranged on the front side), 33... Front end (front end), 35... Rubber feet, 36... Legs, 41 a... First lower surface (lower surface), 51 a ... 1st upper surface (upper surface), 51b ... 2nd upper surface (upper surface), 60 ... extended part, 61 ... curved surface (upper surface shape), 62 ... inclined surface (lower surface) shape).

Claims (4)

A portable computer,
A display unit provided with a display device on the upper surface side;
An input unit on the front side of the display unit and provided with a plurality of input buttons on the upper surface side,
The input part has an extending part extending to the near side from the near side end part of the input button arranged on the most near side;
The portable computer according to claim 1, wherein the extending portion has an upper surface shape that curves downward from a position near the front end portion of the input button toward the front side. The extending portion has a lower surface shape that is inclined upward from the position on the lower surface side near the front end portion of the input button toward the front side,
2. The portable computer according to claim 1, wherein the input unit has a leg portion that can be moved in and out by rotating on the lower surface side in the vicinity of the display unit.   The input unit has a rubber foot on the lower surface side near the front end of the input button, on the side where the input button is arranged with reference to the front end of the input button. The portable computer according to claim 1 or 2.   The input button arranged on the foremost side of the input unit is formed with a convex curved surface such that the upper surface of the button is raised at the center. A portable calculator.

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