Waterproof/drainage structure for a casing, and electronic devices
First Claim
1. A waterproof/drainage structure for a casing having a plurality of pushbuttons on a surface of the casing, comprising:
- a cover member forming the surface and provided with a plurality of button holes; and
a button unit having the plurality of pushbuttons and a sheet portion retaining the plurality of pushbuttons at predetermined positions, the sheet portion being arranged along a back surface of the cover member and having an outer peripheral portion held in close abut with the cover member, the pushbuttons being inserted in the button holes of the cover member,wherein the sheet portion is provided with a groove-like drainage channel having a channel portion that is opposed to a back surface of each of the plurality of pushbuttons and is larger than a surface area within a maximum outer periphery of the pushbuttons.
2 Assignments
0 Petitions
Accused Products
Abstract
Provided is a waterproof/drainage structure for a lower casing (11) having a plurality of pushbuttons (16) on a surface thereof. The waterproof/drainage structure has a cover member (14) forming the surface and provided with a plurality of button holes (14a) the plurality of pushbuttons (16), and a sheet portion (17) retaining the plurality of pushbuttons (16) at predetermined positions. The waterproof/drainage structure includes a button unit (15), in which the sheet portion (17) is arranged along a back surface (14b) of the cover member (14) and in which an outer peripheral portion of the sheet portion (17) is held in close contact with the cover member (14), with the pushbuttons (16) being inserted in button holes (14c) of the cover member (14). The sheet portion (17) is provided with a groove-like drainage channel (22) having a channel portion that is opposed to each of the pushbuttons (16) and is larger than a surface area within a maximum outer periphery of the pushbuttons (16).
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Citations
18 Claims
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1. A waterproof/drainage structure for a casing having a plurality of pushbuttons on a surface of the casing, comprising:
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a cover member forming the surface and provided with a plurality of button holes; and a button unit having the plurality of pushbuttons and a sheet portion retaining the plurality of pushbuttons at predetermined positions, the sheet portion being arranged along a back surface of the cover member and having an outer peripheral portion held in close abut with the cover member, the pushbuttons being inserted in the button holes of the cover member, wherein the sheet portion is provided with a groove-like drainage channel having a channel portion that is opposed to a back surface of each of the plurality of pushbuttons and is larger than a surface area within a maximum outer periphery of the pushbuttons. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An electronic device comprising a casing having a plurality of pushbuttons provided on a surface of the casing, the casing including:
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a cover member forming the surface and provided with a plurality of button holes; and a button unit having the plurality of pushbuttons and a sheet portion retaining the plurality of pushbuttons at predetermined positions, the sheet portion being arranged along a back surface of the cover member and having an outer peripheral portion of the sheet portion held in close contact with the cover member, the pushbuttons being inserted in the button holes of the cover member, wherein the sheet portion is provided with a groove-like drainage channel having a channel portion that is opposed to each of the plurality of pushbuttons and is larger than a surface area within a maximum outer periphery of the pushbuttons. - View Dependent Claims (17, 18)
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Specification