electronic machines

Abstract

To provide an electronic device having multiple operating parts that reduce differences in operability even if they are at different heights. [Solution] The electronic device in this embodiment is arranged from the first end to the second end of the housing and includes a plurality of operating parts, each including a keytop member having an operating surface. The height from the lower end of the keytop member to the operating surface is higher for the first operating part located at the first end than for the second operating part located at the second end.

Description

Technical Field

[0001] The present invention relates to an electronic device.

Background Art

[0002] Generally, in an electronic device called a calculator, a display and a key input section are provided on the top surface of the housing. In the key input section, a plurality of keys are arranged in a matrix. For example, the key input section is provided with numeric keys, arithmetic keys, function keys, etc., each including a plurality of keys.

[0003] Normally, in the case of a small electronic device such as a calculator, while visually recognizing the processing result corresponding to the key input displayed on the display, one hand operates a plurality of keys in the key input section.

[0004] In an electronic device, it is desired that the keys arranged in the key input section can be accurately and quickly pressed and are not easily fatigued even after long-term use. Conventionally, in order to reduce the physical burden, a keyboard structure (step sculpture) in which a plurality of keys are stepped is known. For example, conventionally, when the keys are configured to have steps, a configuration in which the shape of an elastic sheet supporting the keys (push button switches) is deformed (bent) according to the positions of the keys is known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] Thus, when the configuration of the elastic sheet supporting the keys is deformed for each key, the operability (click feeling) differs for each key, so the user may feel discomfort when pressing the keys.

[0007] This invention has been made in consideration of the above-mentioned problems, and aims to provide an electronic device having multiple operating parts in which differences in operability are reduced even if the heights of the operating parts are different. [Means for solving the problem]

[0008] To solve the above problems, the electronic device in this embodiment is arranged from the first end to the second end of the housing and includes a plurality of operating parts, each including a keytop member having an operating surface. The height from the lower end of the keytop member to the operating surface is higher for the first operating part located at the first end than for the second operating part located at the second end. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide an electronic device having multiple operating parts in which differences in operability are reduced even if the heights of the operating parts are different. [Brief explanation of the drawing]

[0010] [Figure 1] A plan view of the electronic device in this embodiment. [Figure 2] A view of the electronic device in this embodiment, seen from the lower side. [Figure 3] A perspective view of the electronic device in this embodiment. [Figure 4] A view of the electronic device in this embodiment, seen from the right side. [Figure 5] This figure shows a first example of the configuration of a cross-sectional view along line AA shown in Figure 1 of this embodiment. [Figure 6] A plan view showing an example of a rubber key in this embodiment. [Figure 7] This figure shows a second example of the configuration of the cross-sectional view along line AA shown in Figure 1 of this embodiment. [Figure 8] This figure shows a third configuration example of the cross-sectional view along line AA shown in Figure 1 of this embodiment. [Figure 9]A diagram showing a fourth configuration example of a cross-sectional view taken along line A-A shown in FIG. 1 in the present embodiment. [Figure 10] A diagram showing a fifth configuration example of a cross-sectional view taken along line A-A shown in FIG. 1 in the present embodiment. [Figure 11] A diagram showing a sixth configuration example of a cross-sectional view taken along line A-A shown in FIG. 1 in the present embodiment. [Figure 12] A diagram showing a seventh configuration example of a cross-sectional view taken along line A-A shown in FIG. 1 in the present embodiment.

Embodiments for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0012] FIGS. 1, 2, 3, and 4 are diagrams showing the external configuration of the electronic device 10 in the present embodiment. FIG. 1 is a plan view of the electronic device 10 in the present embodiment, FIG. 2 is a view of the electronic device 10 as seen from the lower surface side in the present embodiment, FIG. 3 is a perspective view of the electronic device 10 in the present embodiment, and FIG. 4 is a view of the electronic device 10 as seen from the right side surface side in the present embodiment.

[0013] As shown in FIG. 1, a key input unit 11 and a display unit 12 are provided on the top surface of the housing of the electronic device 10. The key input unit 11 is provided with a plurality of keys 14, a selector switch 15, and the like.

[0014] The plurality of keys 14 include, for example, numeric keys, arithmetic keys, function keys, and the like. The numeric keys include, for example, a plurality of keys corresponding to each of

[00] [0] to [9]. The arithmetic keys include keys corresponding to, for example, [+] (addition) key, [-] (subtraction) key, [×] (multiplication) key, [÷] (division) key, [=] (arithmetic execution) for normal calculations by arithmetic operations. The function keys include, for example, an all clear key ([AC] key), a clear key ([C] key), a plurality of memory keys ([MRC][M-][M+]), a root key ([√] key), a [%] key, and the like.

[0015] The selector switch 15 includes, for example, a round selector, a decimal point selector, etc.

[0016] As shown in FIG. 1, the outer shape of the top surface of the housing of the electronic device 10 is formed in a substantially rectangular shape. On the top surface of the housing, a display unit 12 is provided on the upper side (the upper side of the top surface of the housing), and a key input unit 11 is provided on the lower side (the lower side of the top surface of the housing).

[0017] The display unit 12 has a display 16 disposed on a first housing surface 12a which is a first region (upper side) of the top surface of the housing. The display 16 has, for example, a horizontally long rectangular display surface and is disposed from a first end side (the left side in FIG. 1) of the housing to a second end side (the right side in FIG. 1) opposite to the first end side.

[0018] The key input unit 11 has a plurality of keys 14 (operation units) disposed on a second housing surface 11a which is a second region (lower side) of the top surface of the housing, from a first end side to a second end side of the housing. The plurality of keys 14 each have an operation surface 14t on their key tops. The plurality of keys 14 are arranged with a predetermined interval (key pitch) provided, for example, in a direction parallel to the upper side / lower side of the top surface of the housing as the row direction and in a direction parallel to the left side / right side of the top surface of the housing as the column direction.

[0019] In the electronic device 10 of the present embodiment, the second housing surface 11a of the key input unit 11 is formed such that the inclination angle formed with the mounting surface (the bottom surface of the housing) in the direction from the first end side to the second end side, that is, the row direction in which the plurality of keys 14 are arranged, is a first inclination angle (angle θ). Also, the first housing surface 12a of the display unit 12 is formed to be substantially parallel (or substantially horizontal) with respect to the mounting surface (the bottom surface of the housing), or the inclination angle formed with the bottom surface of the housing in the direction from the first end side to the second end side, that is, the row direction in which the plurality of keys 14 are arranged, is a second inclination angle different from the first inclination angle (angle θ).

[0020] As shown in Figures 2 and 4, the second housing surface 11a of the electronic device 10 is formed at an angle θ relative to the bottom surface 13 of the housing, in the direction of the row in which the keys 14 are arranged. The angle θ is preferably in the range of 1° to 9°. Furthermore, the angle θ is preferably in the range of 1° to 3° (details will be described later).

[0021] The configuration of the electronic device 10 shown in Figures 1 to 4, as shown in Figures 2 and 4, illustrates an example where the second housing surface 11a of the key input section 11 is tilted to the right (the left side is higher than the right side). That is, at least a portion of the operating surface 14t of the key 14 (first operating section) located on the first end side (left side) is formed to be higher from the mounting surface (bottom of the housing) than at least a portion of the operating surface 14t of the key 14 (second operating section) located on the second end side (right side). For example, the center of the operating surface 14t of the key 14 located on the first end side (first center) is formed to be higher from the mounting surface (bottom of the housing) than the center of the operating surface 14t of the key 14 located on the second end side (second center).

[0022] This configuration ensures that when the user of the electronic device 10 operates it with their right hand (right-handed user), the multiple keys 14 are easy to operate and the user experiences less fatigue.

[0023] Furthermore, assuming that the user of the electronic device 10 operates it with their left hand (left-handed user), it is also possible to configure the second housing surface 11a of the key input section 11 to be tilted to the left. That is, at least a portion of the operating surface 14t of the key 14 located on the second end side (right side) is formed to be higher from the mounting surface (bottom surface of the housing) than at least a portion of the operating surface 14t of the key 14 located on the first end side (left side).

[0024] On the other hand, the display surface of the display unit 12 is formed such that the height from the mounting surface (bottom surface of the housing) is not higher at the first end than at the second end. In the examples shown in Figures 2 and 4, the first end (left side) and the second end (right side) of the display unit 12 are at the same height, and the upper side of the top surface of the housing is formed to be higher than the boundary between the key input unit 11 and the display unit 12, and is inclined in the direction of the row (front-to-back direction) in which the multiple keys 14 are arranged.

[0025] As shown in Figure 4, the housing of the electronic device 10 is bent at the boundary between the key input section 11 and the display section 12, raising the position of the upper edge of the top surface of the housing. As a result, the first housing surface 12a of the display section 12 is tilted in the direction of the row in which the multiple keys 14 are arranged, improving the visibility of the display surface of the display 16.

[0026] Next, the configuration examples (1st to 7th configuration examples) of the multiple keys 14 (operating parts) in this embodiment will be described with reference to Figures 5 to 12.

[0027] (1) First Configuration Example Figure 5 shows an example of a cross-sectional view along line AA shown in Figure 1. In Figure 5, only two adjacent keys 14 are shown among the multiple keys 14 arranged along line AA. The same applies to Figures 7 to 12.

[0028] Note that Figures 5, 7 to 12, described below, are modified to make the configuration of the multiple keys 14 (operating parts) provided on the electronic device 10 easier to understand, and therefore do not perfectly match the configuration described in Figures 1 to 4.

[0029] As shown in Figure 5, in the first configuration example, the circuit board 22 is provided at the bottom of the housing of the electronic device 10 so as to be parallel to the bottom surface 13 of the housing. The circuit board 22 supports a plurality of keys 14 inside the housing.

[0030] The key 14 is composed of, for example, a rubber key 21a and keytops 14a1, 14a2 (keytop members). The keytops 14a1, 14a2 (keytop members) are formed of, for example, resin. The rubber key 21a is placed on the upper surface of the substrate 22. The rubber key 21a is formed of, for example, an elastic material such as rubber. Dome-shaped rubber keytops 21a1, 21a2 (rubber members) are formed on the rubber key 21a at positions corresponding to the keytops 14a1, 14a2 of the multiple keys 14.

[0031] Each rubber keytop 21a1, 21a2 is formed by a mounting portion 21a11, 21a22 to which the lower ends of the keytops 14a1, 14a2 are attached, and a support portion 21a12, 21a22 that supports the mounting portion 21a11, 21a21 and the circuit board 24 in a spaced-out position.

[0032] The mounting parts 21a11 and 21a22 are normally supported by the support parts 21a12 and 21a22, separated from the circuit board 24, in order to provide operability when the keytops 14a1 and 14a2 mounted on their respective tops are pressed. When pressed, they are pushed in until they come into contact with the circuit board 24.

[0033] The rubber keytops 21a1 and 21a2 are standardized so that they have the same operability (click feel) when pressed as keytops 14a1 and 14a2. In other words, the rubber keytops 21a1 and 21a2 are made from the same material, have the same shape and dimensions, and are formed so that their mass and other properties are approximately equal.

[0034] The term "click feel" here refers to the sensation a user experiences when they press keycaps 14a1 and 14a2, causing the rubber keycaps 21a1 and 21a2 to compress, thereby recognizing the resulting rebound force (elastic force).

[0035] Figure 6 is a plan view showing an example of the rubber key 21a in this embodiment.

[0036] As shown in Figure 6, the rubber key 21a is provided with multiple rubber keytops positioned to match the multiple keys 14 arranged on the second housing surface 11a of the key input section 11 shown in Figure 1. Figure 6 includes rubber keytops 21a1 and 21a2 to which the keytops 14a1 and 14a2 of two keys 14 arranged on the AA line are attached.

[0037] The rubber keytops 21a1 and 21a2 are mounted via mounting portions 21a11 and 21a22, respectively, so that the corresponding keytops 14a1 and 14a2 are mounted such that the key stroke direction (sliding direction) is perpendicular to the bottom surface 13 (housing mounting surface).

[0038] A conductive member is provided at the bottom of the rubber keytops 21a1 and 21a2 (mounting parts 21a11 and 21a22), and when the rubber keytops 21a1 and 21a2 are pressed down by the keytops 14a1 and 14a2, it comes into contact with electrodes wired to the circuit board 22 in order to detect the key press.

[0039] The keytops 14a1 and 14a2 are formed so that the height from the bottom surface (lower end) to the operating surface differs depending on their position within the range from the first end (keytop 14a1 side) to the second end (keytop 14a2 side). In Figure 5, since the second housing surface 11a of the key input section 11 is tilted to the right, the height Ta1 from the bottom surface of the keytop 14a1 located on the first end side to the operating surface 14ta1 is set to be higher than the height Ta2 from the bottom surface of the keytop 14a2 located on the second end side to the operating surface 14ta2.

[0040] This allows the height from the second housing surface 11a to the operating surfaces 14ta1 and 14ta2 to be the same, and the height from the housing bottom surface 13 (housing mounting surface) to the operating surfaces 14ta1 and 14ta2 to be configured in a stepped manner according to the inclination angle θ of the second housing surface 11a.

[0041] Although Figure 5 shows only two keytops 14a1 and 14a2, by configuring multiple keytops positioned from the first end to the second end in the same manner as keytops 14a1 and 14a2, the operating surfaces of multiple keytops can be arranged in a stepped pattern according to the inclination angle θ. Basically, the height difference between the operating surfaces of multiple adjacent keytops is kept constant.

[0042] The second housing surface 11a (top housing surface) has openings formed therein, each corresponding to a number of keys 14. The openings are formed so that their opening surfaces are approximately perpendicular (vertically) to the housing bottom surface 13 (housing mounting surface). The keytops 14a1 and 14a2 slide through their respective openings and are supported so that, under normal circumstances, their respective operating surfaces 14ta1 and 14ta2 are higher than the second housing surface 11a. Therefore, the sides of the keytops 14a1 and 14a2 and the opening surfaces of the openings are approximately parallel to each other with a small gap between them.

[0043] Furthermore, ribs 31a1 and 31a2 (sliding assist members) are formed from the opening in the second housing surface 11a (top housing surface) in the sliding direction of the keytops 14a1 and 14a2, that is, perpendicular to the housing bottom surface 13 (housing mounting surface). The sides of the ribs 31a1 and 31a2 that face the keytops 14a1 and 14a2 face the keytops 14a1 and 14a2, with a small gap between them and the ribs. Since the ribs 31a1 and 31a2 extend from the opening in the sliding direction of the keytops 14a1 and 14a2, they suppress wobbling of the keytops 14a1 and 14a2 within the range of the small gap when the keytops 14a1 and 14a2 slide.

[0044] The second housing surface 11a (top housing surface) is inclined at an angle θ, and the height of the mounting parts 21a11 and 21a22 from the housing bottom surface 13 is the same (horizontal). Therefore, the length of the ribs 31a1 and 31a2 from the back side (inside of the housing) of the second housing surface 11a to a position close to the flange formed on the bottom of the keytops 14a1 and 14a2 (or a position that contacts them when not in operation) is longer on the first end side (keytop 14a1 side) than on the second end side (keytop 14a2 side). In other words, the lengths of the ribs 31a1 and 31a2 are formed to differ according to the height of the keytops 14a1 and 14a2 in the direction in which the keytops 14a1 and 14a2 slide (perpendicular to the housing bottom surface 13).

[0045] As a result, the wobbling of the keytops 14a1 and 14a2 is suppressed by their respective ribs 31a1 and 31a2.

[0046] As shown in Figure 5, the operating surfaces 14ta1 and 14ta2 (top surfaces) of the keytops 14a1 and 14a2 are formed to be parallel to the bottom surface 13. That is, when the electronic device 10 is placed on a horizontal surface, the operating surfaces 14ta1 and 14ta2 of the keytops 14a1 and 14a2 are horizontal. In addition, the heights L1 and L2 of the keytops decrease sequentially from the first end keytop 14a1 to the second end keytop 14a2.

[0047] Since the keytops 14a1 and 14a2 are formed to the same shape and the stroke length defined by the movable range of the rubber keytops 21a1 and 21a2 is the same, the heights L1 and L2 relative to the bottom surface 13 are stepped according to the inclination angle θ of the second housing surface 11a, as shown in Figures 2 and 3.

[0048] As shown in Figures 2 and 4, in this embodiment, the electronic device 1 has the second housing surface 11a of the key input section 11 inclined at an angle θ in the row direction of the keys 14 with respect to the bottom surface 13, and the operating surface 14t of the key 14 located on the first end side is formed to be higher than the operating surface 14t of the key 14 located on the second end side, thereby providing good operability for the keys 14 and reducing user fatigue.

[0049] Furthermore, by standardizing the configuration (material / shape (mass)) of the rubber keys 21a (rubber keytops 21a1, 21a2) across multiple keys 14, and varying the height from the bottom surface of the keytops 14a1, 14a2 to the operating surfaces 14ta1, 14ta2, it becomes possible to reduce differences in operability while varying the height from the bottom surface 13 of the housing to the operating surfaces 14ta1, 14ta2 of the keytops 14a1, 14a2.

[0050] (2) Second Configuration Example Figure 7 shows an example of a cross-sectional view along line AA shown in Figure 1.

[0051] The second configuration is basically formed in the same way as the first configuration. That is, the key 14 is composed of, for example, a rubber key 21b and key tops 14b1, 14b2 (key top members). The key tops 14b1, 14b2 (key top members) are formed of, for example, resin. The rubber key 21b is placed on the upper surface of the substrate 22. The rubber key 21b is formed of an elastic material such as rubber, in the same way as the rubber key 21a described above. Dome-shaped rubber key tops 21b1, 21b2 (rubber members) are formed on the rubber key 21b at positions corresponding to the key tops 14b1, 14b2 of the multiple keys 14.

[0052] The rubber keytops 21b1 and 21b2 are constructed in the same way as the rubber keytops 21a1 and 21a2 in the first configuration example (Figure 5). Similarly, the ribs 31b1 and 31b2 are constructed in the same way as the ribs 31a1 and 31a2 in the first configuration example (Figure 5).

[0053] Similar to the first configuration example, the keytops 14b1 and 14b2 are configured such that the height Tb1 from the bottom surface of the keytop 14b1 located at the first end to the operating surface 14tb1 is higher than the height Tb2 from the bottom surface of the keytop 14b2 located at the second end to the operating surface 14tb2.

[0054] In the second configuration example, the keytops 14b1 and 14b2 are formed by varying the amount of hollowing out in the material for each key. Similar to the first configuration example, the keytops 14b1 and 14b2 are formed so that their height from the bottom surface to the operating surface differs depending on their position within the range from the first end (keytop 14a1 side) to the second end (keytop 14a2 side), with the keytop 14b1 on the first end side being higher than the keytop 14b2. Therefore, without hollowing out the material, the keytop 14b1 would have a greater mass.

[0055] In the second configuration example, the amount of hollowing out of the material is increased with increasing height from the bottom surface to the operating surface, so that the mass of the multiple keytops arranged in the range from the first end to the second end is made approximately the same. In the example shown in Figure 7, for example, keytop 14b1 is hollowed out while retaining the internal support member 41b1, and keytop 14b2 is hollowed out while retaining more support members 41b2 than keytop 14b1.

[0056] This allows for consistent operability across multiple keys 14 by standardizing the configuration (material / shape (mass)) of the rubber key 21b across multiple keys 14. Furthermore, by adjusting the hollowing out of the keytops 14b1 and 14b2, the mass of the keytops themselves can be made approximately equal, reducing the load on the rubber key 21b (rubber keytops 21b1 and 21b2) and improving durability.

[0057] (3) Third Configuration Example Figure 8 shows an example of a cross-sectional view along line AA shown in Figure 1.

[0058] The third configuration is basically formed in the same way as the first configuration. That is, the key 14 is composed of, for example, a rubber key 21d and keytops 14d1, 14d2 (keytop members), similar to the first configuration. The keytops 14d1, 14d2 (keytop members) are formed of, for example, resin. The rubber key 21d (rubber member) is placed on the upper surface of the substrate 22. The rubber key 21d is formed of, for example, an elastic material such as rubber. Dome-shaped rubber keytops 21d1, 21d2 (rubber members) are formed on the rubber key 21d at positions corresponding to the keytops 14d1, 14d2 of the multiple keys 14.

[0059] The rubber keytops 21d1 and 21d2 are configured in the same way as the rubber keytops 21a1 and 21a2 in the first configuration example (Figure 5).

[0060] Similar to the first configuration example, the keytops 14d1 and 14d2 are configured such that the height Td1 from the bottom surface of the keytop 14d1 located on the first end side to the operating surface 14td1 is higher than the height Td2 from the bottom surface of the keytop 14d2 located on the second end side to the operating surface 14td2.

[0061] Furthermore, the second housing surface 11b of the third configuration example does not have ribs formed on it, unlike the first configuration example.

[0062] In the third configuration example, support members 34d1 and 34d2 are formed on the inside of the keytops 14d1 and 14d2 of the multiple keys 14, and at positions that are on the sides of the rubber keytops 21d1 and 21d2 (rubber members), extending in the sliding direction of the keytops 14d1 and 14d2. The support members 34d1 and 34d2 are formed, for example, integrally with the housing, and are formed, for example, from above the rubber key 21d in a direction perpendicular to the bottom surface 13 of the housing.

[0063] Inside the keytops 14d1 and 14d2, spaces are provided for forming support member receivers 43d1 and 43d2 that slidably hold the support members 34d1 and 34d2. The support member receivers 43d1 and 43d2, for example, provide a space between the outer circumference of the keytops 14d1 and 14d2 and the shafts of the keytops 14d1 and 14d2, and support the support members 34d1 and 34d2 within this space. The shafts of the keytops 14d1 and 14d2 are formed, for example, in a cylindrical shape, and bar keytops 21d1 and 21d2 (rubber members) are attached to the lower end (bottom surface) of the cylindrical portion.

[0064] Flange portions 42d1 and 42d2 are formed at the lower ends of the outer periphery of the keytops 14d1 and 14d2. The length of the outer periphery of the keytops 14d1 and 14d2 from the operating surfaces 14td1 and 14td2 is formed so that the flange portions 42d1 and 42d2 are in a position close to (or in contact with) the back surface (inside of the housing) of the second housing surface 11a.

[0065] The length of the support member receivers 43d1 and 43d2 (spaces) is formed to the maximum length (close to the operating surface 14td1), depending on the heights Td1 and Td2 of the keytops 14d1 and 14d2. Similarly, the length of the support members 34d1 and 34d2 is formed to the maximum length, depending on the heights Td1 and Td2 of the keytops 14d1 and 14d2, within the range in which the keytops 14d1 and 14d2 can slide within the support member receivers 43d1 and 43d2 (spaces). In other words, in the configuration shown in Figure 8, the support member receiver 43d1 is longer than the support member receiver 43d2, and the support member 34d1 is longer than the support member 34d2.

[0066] As a result, the support members 43d1, 43d2 and the support members 34d1, 34d2 can support the keytops 14d1, 14d2 for the maximum possible length of time when they slide (stroke due to pressing). Therefore, the wobbling of the keytops 14d1, 14d2 can be minimized.

[0067] (4) Fourth Configuration Example Figure 9 shows an example of a cross-sectional view along line AA shown in Figure 1.

[0068] The fourth configuration is basically formed in the same way as the first configuration. That is, the key 14 is composed of, for example, a rubber key 21e and keytops 14e1, 14e2 (keytop members), similar to the first configuration. The keytops 14e1, 14e2 (keytop members) are formed of, for example, resin. The rubber key 21e is placed on the upper surface of the substrate 22. The rubber key 21e is formed of, for example, an elastic material such as rubber. Dome-shaped rubber keytops 21e1, 21e2 (rubber members) are formed on the rubber key 21e at positions corresponding to the keytops 14e1, 14e2 of the multiple keys 14.

[0069] The rubber keytops 21e1 and 21e2 are configured in the same way as the rubber keytops 21a1 and 21a2 in the first configuration example (Figure 5).

[0070] Similar to the first configuration example, the keytops 14e1 and 14e2 are configured such that the height Te1 from the bottom surface of the keytop 14d1 located on the first end side to the operating surface 14te1 is higher than the height Te2 from the bottom surface of the keytop 14e2 located on the second end side to the operating surface 14te2.

[0071] In the fourth configuration example, the second housing surface 11b does not have ribs formed on it, unlike in the first configuration example (same as the third configuration example). In the fourth configuration example, flanges 45e1 and 45e2 are formed on the bottom of the keytops 14e1 and 14e2, respectively, with different heights (thicknesses) for each keytop.

[0072] In other words, because the second housing surface 11b (top housing surface) is inclined at an angle θ, the height from the bottom surface of the keytops 14e1 and 14e2 to the back surface (inside the housing) of the second housing surface 11b is different. The thickness of the flanges 45e1 and 45e2 is formed so that the upper surface of the flanges 45e1 and 45e2 is at a height corresponding to the height from the bottom surface of the keytops 14e1 and 14e2 to the back surface (inside the housing) of the second housing surface 11b, i.e., a position that is close to the back surface (inside the housing) of the second housing surface 11b, i.e., a position that comes into contact when not in operation. Therefore, the height Te11 of the flange 45e1 formed on the keytop 14e1 is formed to be higher (thicker) than the height Te21 of the flange 45e2 formed on the keytop 14e2.

[0073] As a result, as in the first configuration example, the key tops 14e1 and 14e2 can be stably held by the second housing surface 11b without forming ribs in the opening of the second housing surface 11a (top housing surface), thereby suppressing wobbling.

[0074] (5) Example of the fifth configuration In the first to fourth configuration examples, the configuration (material / shape (mass)) of the rubber keys (rubber keytops) is standardized across multiple keys 14, and the height from the bottom surface of the keytop to the operating surface is changed, thereby altering the height from the bottom surface of the housing 13 to the operating surface of the keytop. However, in the fifth to seventh configuration examples, the height from the bottom surface of the housing 13 to the operating surface of the keytop is changed by arranging spacers.

[0075] Figure 10 shows an example of a cross-sectional view along line AA shown in Figure 1.

[0076] The fifth configuration is basically formed in the same way as the fourth configuration. That is, the key 14 is composed of, for example, a rubber key 21f and keytops 14f1, 14f2 (keytop members), similar to the fourth configuration. The keytops 14f1, 14f2 (keytop members) are formed of, for example, resin. The rubber key 21f is placed on the upper surface of the substrate 22. The rubber key 21f is formed of, for example, an elastic material such as rubber. Dome-shaped rubber keytops 21f1, 21f2 (rubber members) are formed on the rubber key 21f at positions corresponding to the keytops 14f1, 14f2 of the multiple keys 14.

[0077] The rubber keytops 21f1 and 21f2 are configured in the same way as the rubber keytops 21a1 and 21a2 in the first configuration example (Figure 5).

[0078] In the fifth configuration example, in order to make the heights L1 and L2 from the bottom surface 13 of the housing to the operating surfaces of the keytops 14f1 and 14f2 step-like, as in the first configuration example, the keytops 14f1 and 14f2 are formed including spacers 51f1 and 52f2 of different heights. The heights Tf1 and Tf2 of the keytops 14f1 and 14f2 excluding the spacers 51f1 and 52f2 are the same, but the heights Tf11 and Tf21 of the spacers 51f1 and 52f2 are provided with a height difference corresponding to the difference in heights L1 and L2.

[0079] Therefore, the height from the lower end of keytop 14f1 to the operating surface 14f1 is (Tf1 + Tf11), and the height from the lower end of keytop 14f2 to the operating surface 14f2 is (Tf2 + Tf12). The keytop 14f21 located on the first end side has a higher capacity than the keytop 14f2 located on the second end side. In other words, in the fifth configuration example, the lower end of key 14 (operating part) indicates the lower ends of spacers 51f1 and 52f2.

[0080] The spacers 51f1 and 52f2 are formed from, for example, a non-elastic material, such as resin. Therefore, when the keytops 14f1 and 14f2 are pressed and the bottom surfaces of the rubber keytops 21f1 and 21f2 come into contact with the circuit board 22, there is no difference in operability between keytop 14f1 and keytop 14f2.

[0081] In this way, by forming the keytops 14f1 and 14f2 of multiple keys 14 with spacers 51f1 and 52f2 of different heights, it is possible to change the height from the bottom surface 13 of the housing to the operating surface of the keytops 14f1 and 14f2, while using the same rubber key 21f and keytops 14f1 and 14f2, thereby reducing the production cost of the parts and minimizing differences in operability.

[0082] Furthermore, the fifth configuration example can also be applied to the first to fourth configuration examples described above. That is, in the same way as the fifth configuration example, the keytops can be formed with spacers of different heights so that the height to the operating surface is different.

[0083] (6) Sixth Configuration Example Figure 11 shows an example of a cross-sectional view along line AA shown in Figure 1.

[0084] The sixth configuration is basically formed in the same way as the fourth configuration. That is, the key 14 is composed of, for example, a rubber key 21g and keytops 14g1, 14g2 (keytop members), similar to the fourth configuration. The keytops 14g1, 14g2 (keytop members) are formed of, for example, resin. The rubber key 21g is placed on the upper surface of the substrate 22. The rubber key 21g is formed of, for example, an elastic material such as rubber. Dome-shaped rubber keytops 21g1, 21g2 (rubber members) are formed on the rubber key 21g at positions corresponding to the keytops 14g1, 14g2 of the multiple keys 14.

[0085] In the sixth configuration example, the rubber keytops 21g1 and 21g2 are formed such that spacers 52g1 and 52g2 are enclosed within the mounting portions 21g11 and 21g21. The spacers 52g1 and 52g2 are not formed separately from the rubber key 21g and then bonded together, but are enclosed within the rubber key 21g during the molding process.

[0086] The rubber keytops 21g1 and 21g2 are formed such that, excluding the spacers 52g1 and 52g2, their mass is approximately equal to that of the rubber keytops 21a1 and 21a2 in the first configuration example (Figure 5).

[0087] Here, spacers 52g1 and 52g2 are assumed to be included in the configuration of keytops 14g1 and 14g2, respectively. In other words, in the sixth configuration example, the lower end of the operating section 14 indicates the lower ends of spacers 52g1 and 52g2.

[0088] In the sixth configuration example, in order to make the heights L1 and L2 from the bottom surface 13 of the chassis to the operating surfaces of the keytops 14g1 and 14g2 step-like, as in the first configuration example, the height Tg11 of spacer 52g1 and the height Tg21 of spacer 52g2 are set to have a height difference corresponding to the difference in heights L1 and L2.

[0089] Spacers 51g1 and 52g2 are formed from, for example, a non-elastic material such as resin, and the configuration of the rubber keys 21g (rubber keytops 21g1 and 21g2) is standardized, excluding spacers 52g1 and 52g2. Therefore, when keytops 14g1 and 14g2 are pressed and the bottom surfaces of the rubber keytops 21g1 and 21g2 contact the circuit board 22, there is no difference in operability between keytop 14g1 and keytop 14g2.

[0090] In this way, by incorporating spacers 51g1 and 52g2 of different heights into the rubber keytops 21g1 and 21g2 of multiple keys 14, the height from the bottom surface 13 of the housing to the operating surface of the keytops 14g1 and 14g2 can be varied, while the rubber keys 21g and keytops 14g1 and 14g2 (excluding spacers 52g1 and 52g2) can be made common, thereby reducing the production cost of the parts and minimizing differences in operability.

[0091] (7) Example of the 7th configuration Figure 12 shows an example of a cross-sectional view along line AA shown in Figure 1.

[0092] The seventh configuration is basically formed in the same way as the fifth configuration. That is, the key 14 is composed of, for example, a rubber key 21h and keytops 14h1 and 14h2 (keytop members). The keytops 14h1 and 14h2 (keytop members) are formed of, for example, resin.

[0093] In the seventh configuration example, the height Th1 from the bottom surface to the operating surface of the keytop 14h1 located on the first end side and the height Th2 from the bottom surface to the operating surface of the keytop 14h2 located on the second end side are formed to be approximately equal. In other words, in the seventh configuration example, not only is the configuration (material / shape (mass)) of the rubber keys 21h (rubber keytops 21h1, 21h2) standardized, but the keytops 14h1 and 14h2 are also standardized.

[0094] In the seventh configuration example, a substrate 220, for example, made of a flexible substrate, is provided at the bottom of the housing of the electronic device 10. The substrate 220 supports a plurality of keys 14 inside the housing.

[0095] The bottom of the enclosure is formed in a stepped shape from the first end to the second end, corresponding to the area where multiple keys 14 are arranged, that is, the area on the first end (first area) is higher in height from the bottom surface of the enclosure than the area on the second end (second area).

[0096] In the seventh configuration example, the bottom of the enclosure is made stepped in the same way as in the first configuration example, so that the heights L1 and L2 from the bottom surface 13 of the enclosure to the operating surfaces of the keytops 14h1 and 14h2 are stepped. The height difference between the first and second regions from the bottom surface 13 of the enclosure is provided according to the difference in heights L1 and L2.

[0097] The substrate 220 is formed from a flexible substrate and is positioned in the stepped bottom of the housing to conform to the shape of the bottom. Therefore, the height from the bottom surface of the housing to the substrate 220 is higher in the first end region 220h1 (height Lh1) than in the second end region 220h2 (height Lh2) (Lh1 > Lh2).

[0098] A rubber key 21h is placed on the upper surface of the circuit board 220. The rubber key 21h is made of an elastic material such as rubber. Dome-shaped rubber keytops 21h1 and 21h2 (rubber material) are formed on the rubber key 21h at positions corresponding to the keytops 14h1 and 14h2 of the multiple keys 14. That is, the rubber keytop 21h1 (keytop 14h1) is placed in the first end region (first region) 220h1, and the rubber keytop 21h2 (keytop 14h2) is placed in the second end region (second region) 220h2, which is lower than the first region.

[0099] The rubber keytops 21h1 and 21h2 are configured in the same way as the rubber keytops 21h1 and 21h2 in the first configuration example (Figure 5).

[0100] In this way, by standardizing the configuration of the rubber keys 21h (rubber keytops 21h1, 21h2) and keytops 14h1, 14h2, differences in operability are avoided. Furthermore, by forming the bottom of the housing in a stepped manner for each area where the keys 14 are placed, the height from the bottom surface 13 of the housing to the operating surface of the keytops 14h1, 14h2 can be varied.

[0101] In addition, in the seventh configuration example, it is also possible to implement the configuration of rubber keys (rubber keytops) and keytops from the fifth or sixth configuration example.

[0102] Furthermore, the present invention is not limited to the embodiments, and can be modified in various ways during implementation without departing from its essence. Moreover, the embodiments include inventions at various stages, and various inventions can be extracted by appropriate combinations of the multiple constituent elements disclosed. For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiments, or if some constituent elements are combined, if the problem described in the section on the problem the invention aims to solve is solved and the effect described in the section on the effects of the invention is obtained, then the configuration in which these constituent elements are deleted or combined can be extracted as an invention.

[0103] The invention described in the original claims of this application is listed below. [1] It is arranged from the first end to the second end of the housing and includes multiple operating parts, including keytop members having operating surfaces. The electronic device is characterized in that the height from the lower end of the keytop member to the operating surface is higher for the first operating section located at the first end than for the second operating section located at the second end. [2] The operating section further includes a rubber member that supports the key top member. The electronic device according to [1], characterized in that the shape, dimensions, and material of the rubber member are common to the first operating section and the second operating section. [3] The top surface of the housing is formed to be inclined at a predetermined angle with respect to the mounting surface in the direction from the first end to the second end, An opening is formed in the top surface of the housing, allowing the key top member to slide through in a vertical direction relative to the aforementioned mounting surface. A sliding assist member is formed from the opening on the top surface of the housing in the sliding direction of the key top member, to prevent the key top member from sliding in a direction different from the sliding direction. The electronic device according to [1] or [2], characterized in that the length of the sliding assist member in the sliding direction is formed to differ according to the height of the key top member corresponding to the first operating part and the second operating part, respectively. [4] The electronic device according to any one of [1] to [3], characterized in that the amount of hollowing out of the keytop member of the first operating part is formed to be greater than that of the keytop member of the second operating part. [5] A support member is formed on the inside of the keytop member in the plurality of operating parts, at a position that is on the side surface of the rubber member, extending in the sliding direction of the keytop member. The electronic device according to [2], characterized in that the length of the support member is formed to differ according to the height of the key top member corresponding to the first operating section and the second operating section, respectively. [6] The top surface of the housing is formed to be inclined with respect to the mounting surface at a predetermined angle from the first end to the second end, An opening is formed in the top surface of the housing, allowing the key top member to slide through in a vertical direction relative to the aforementioned mounting surface. A portion of the keytop member corresponding to the first and second operating sections is formed so as to face the inside of the housing on the top surface of the housing, The electronic device according to any one of [1], [2], or [4], characterized in that the height from the lower end of the keytop member of the first operating section and the second operating section to the position on the top surface of the housing that is opposite to the inside of the housing is different. [7] The aforementioned keytop member includes a spacer, The electronic device according to any one of [1] to [6], characterized in that the thickness of the spacer is formed to be greater for the first operating section than for the second operating section, so that the height from the lower end of the key top member to the operating surface is greater for the first operating section than for the second operating section. [8] A plurality of operating parts are arranged from the first end to the second end of the housing, including a keytop member having an operating surface, A circuit board on which the plurality of operating units are arranged, Equipped with, The height from the lower end of the key top member to the operating surface is formed to be approximately equal between the first operating section located at the first end and the second operating section located at the second end. The first operating unit is located in the first region of the substrate, The second operating unit is located in the second region of the substrate, An electronic device characterized in that the height from the bottom surface of the housing to the substrate is formed such that the first region is higher than the second region. [9] The operating section further includes a rubber member that supports the key top member. The electronic device according to [8], characterized in that the shape, dimensions, and material of the rubber member are common to the first operating section and the second operating section.

[10] The electronic device according to [8] or [9], characterized in that the substrate is formed of a flexible substrate that can be bent. [Explanation of Symbols]

[0104] 10...Electronic device, 11...Key input area, 12...Display area, 13...Bottom surface, 14...Keys, 16...Display.

Claims

1. It is arranged from the first end to the second end of the housing and includes a plurality of operating parts, including a keytop member having an operating surface. The height from the lower end of the keytop member to the operating surface is such that the first operating section located at the first end is higher than the second operating section located at the second end. An electronic device characterized by the following features.

2. The operating section further includes a rubber member that supports the key top member. The shape, dimensions, and material of the rubber member are common to both the first operating section and the second operating section. The electronic device according to feature 1.

3. The top surface of the housing is formed to be inclined at a predetermined angle with respect to the mounting surface in the direction from the first end to the second end, An opening is formed in the top surface of the housing, allowing the key top member to slide through in a vertical direction relative to the aforementioned mounting surface. A sliding assist member is formed from the opening on the top surface of the housing in the sliding direction of the key top member, to prevent the key top member from sliding in a direction different from the sliding direction. The length of the sliding assist member in the sliding direction is formed to differ according to the height of the key top member corresponding to the first operating part and the second operating part, respectively. The electronic device according to claim 1 or 2, characterized in that it is an electronic device.

4. The amount of cutout in the keytop member of the first operating section is formed to be greater than that of the keytop member of the second operating section. The electronic device according to any one of features 1 to 3.

5. A support member is formed on the inside of the keytop member in the plurality of operating parts, at a position that is on the side surface of the rubber member, extending in the sliding direction of the keytop member. The length of the support member is formed to differ according to the height of the key top member corresponding to the first operating section and the second operating section, respectively. The electronic device according to feature 2.

6. The top surface of the housing is formed to be inclined with respect to the mounting surface at a predetermined angle from the first end to the second end, An opening is formed in the top surface of the housing, allowing the key top member to slide through in a vertical direction relative to the aforementioned mounting surface. A portion of the keytop member corresponding to the first and second operating sections is formed so as to face the inside of the housing on the top surface of the housing, The first and second operating sections are formed such that the height from the lower end of the key top member to the position on the top surface of the housing that is opposite to the inside of the housing is different. The electronic device according to any one of claims 1, 2, or 4.

7. The aforementioned keytop member includes a spacer, The thickness of the spacer is formed to be greater for the first operating section than for the second operating section, so that the height from the lower end of the key top member to the operating surface is greater for the first operating section than for the second operating section. The electronic device according to any one of features 1 to 6.

8. A plurality of operating parts are arranged from the first end to the second end of the housing, including a keytop member having an operating surface, A circuit board on which the plurality of operating units are arranged, Equipped with, The height from the lower end of the key top member to the operating surface is formed to be approximately equal between the first operating section located at the first end and the second operating section located at the second end. The first operating unit is located in the first region of the substrate, The second operating unit is located in the second region of the substrate, The height from the bottom surface of the housing to the substrate is formed such that the first region is higher than the second region. An electronic device characterized by the following features.

9. The operating section further includes a rubber member that supports the key top member. The shape, dimensions, and material of the rubber member are common to both the first operating section and the second operating section. The electronic device according to feature 8.

10. The substrate is formed of a flexible substrate that can be bent. The electronic device according to claim 8 or 9.

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